TY - CPAPER T1 - Deactivation and Regeneration of Rh/CeO sub(2)-ZrO sub(2)Catalyst for Low-Temperature Steam Reforming of Ethanol T2 - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AN - 39254558; 4358667 JF - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AU - Roh, Hyun-Seog AU - Platon, Alex AU - Wang, Yong AU - King, David L Y1 - 2006/09/10/ PY - 2006 DA - 2006 Sep 10 KW - Ethanol KW - Steam KW - Deactivation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39254558?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.atitle=Deactivation+and+Regeneration+of+Rh%2FCeO+sub%282%29-ZrO+sub%282%29Catalyst+for+Low-Temperature+Steam+Reforming+of+Ethanol&rft.au=Roh%2C+Hyun-Seog%3BPlaton%2C+Alex%3BWang%2C+Yong%3BKing%2C+David+L&rft.aulast=Roh&rft.aufirst=Hyun-Seog&rft.date=2006-09-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.issn=&rft_id=info:doi/ L2 - http://oasys.acs.org/acs/232nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Liquid Core Waveguide Detection of a Fluorescent Bioassay on a BEADS Column T2 - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AN - 39236972; 4355051 JF - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AU - Edberg, Heather C AU - Baird, Cheryl L AU - Dockendorff, Brian P AU - Ozanich, Richard AU - Jones, Mark E AU - Bruckner-Lea, Cynthia Y1 - 2006/09/10/ PY - 2006 DA - 2006 Sep 10 KW - Bioassays KW - Cores KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39236972?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.atitle=Liquid+Core+Waveguide+Detection+of+a+Fluorescent+Bioassay+on+a+BEADS+Column&rft.au=Edberg%2C+Heather+C%3BBaird%2C+Cheryl+L%3BDockendorff%2C+Brian+P%3BOzanich%2C+Richard%3BJones%2C+Mark+E%3BBruckner-Lea%2C+Cynthia&rft.aulast=Edberg&rft.aufirst=Heather&rft.date=2006-09-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.issn=&rft_id=info:doi/ L2 - http://oasys.acs.org/acs/232nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Spectroscopic Investigations of Ammonium Borohydride and Diammoniate of Diborane: Evaluating the Potential of a Hydrogen Storage Material T2 - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AN - 39219011; 4358655 JF - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AU - Heldebrant, David J AU - Stowe, Ashley C AU - Karkamkar, Abhi AU - Hess, Nancy J AU - Gutowski, Maciej AU - Linehan, John C AU - Autrey, Tom Y1 - 2006/09/10/ PY - 2006 DA - 2006 Sep 10 KW - Hydrogen KW - Storage KW - Ammonium KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39219011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.atitle=Spectroscopic+Investigations+of+Ammonium+Borohydride+and+Diammoniate+of+Diborane%3A+Evaluating+the+Potential+of+a+Hydrogen+Storage+Material&rft.au=Heldebrant%2C+David+J%3BStowe%2C+Ashley+C%3BKarkamkar%2C+Abhi%3BHess%2C+Nancy+J%3BGutowski%2C+Maciej%3BLinehan%2C+John+C%3BAutrey%2C+Tom&rft.aulast=Heldebrant&rft.aufirst=David&rft.date=2006-09-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.issn=&rft_id=info:doi/ L2 - http://oasys.acs.org/acs/232nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Electron Transfer at the Cytochrome-Iron Oxide Interface T2 - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AN - 39210695; 4357313 JF - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AU - Kerisit, Sebastien AU - Rosso, Kevin M AU - Dupuis, Michel AU - Wang, Xuelin Y1 - 2006/09/10/ PY - 2006 DA - 2006 Sep 10 KW - Oxides KW - Electron transfer KW - Cytochromes KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39210695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.atitle=Electron+Transfer+at+the+Cytochrome-Iron+Oxide+Interface&rft.au=Kerisit%2C+Sebastien%3BRosso%2C+Kevin+M%3BDupuis%2C+Michel%3BWang%2C+Xuelin&rft.aulast=Kerisit&rft.aufirst=Sebastien&rft.date=2006-09-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.issn=&rft_id=info:doi/ L2 - http://oasys.acs.org/acs/232nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Layer-By-Layer Assembly of Enzymes on Carbon Nanotubes T2 - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AN - 39206362; 4357590 JF - 2006 Meeting and Exposition of the American Chemical Society (ACS 06) AU - Lin, Yuehe AU - Liu, Guodong AU - Wang, Jun AU - Wright, Bob W Y1 - 2006/09/10/ PY - 2006 DA - 2006 Sep 10 KW - Enzymes KW - Carbon KW - Nanotubes KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39206362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.atitle=Layer-By-Layer+Assembly+of+Enzymes+on+Carbon+Nanotubes&rft.au=Lin%2C+Yuehe%3BLiu%2C+Guodong%3BWang%2C+Jun%3BWright%2C+Bob+W&rft.aulast=Lin&rft.aufirst=Yuehe&rft.date=2006-09-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2006+Meeting+and+Exposition+of+the+American+Chemical+Society+%28ACS+06%29&rft.issn=&rft_id=info:doi/ L2 - http://oasys.acs.org/acs/232nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - DNA microarray analysis of anaerobic Methanosarcina barkeri reveals responses to heat shock and air exposure AN - 754568582; 13416682 AB - Methanosarcina barkeri is a methanogenic archaeon that can digest cellulose and other polysaccharides to produce methane. It can only grow under strictly anoxic conditions, but which can survive air exposure. To obtain further knowledge of cellular changes occurring in M. barkeri in response to air exposure and other environmental stresses, we constructed the first oligonucleotide microarray for M. barkeri and used it to investigate the global transcriptomic responses of M. barkeri to air exposure and heat shock at 45C for 1h. The results showed that various house-keeping genes, such as genes involved in DNA replication recombination and repair, energy production and conversion, and protein turnover were regulated by environmental stimuli. In response to air exposure, up-regulation of a large number of transposase encoding genes was observed. However, no differential expression of genes encoding superoxide dismutase, catalase, nonspecific peroxidases or thioredoxin reductase was observed in response to air exposure, implying that no significant level of reactive oxygen species has been formed under air exposure. In response to heat shock, both Hsp70 (DnaK-DnaJ-GrpE chaperone system) the Hsp60 (GroEL) systems were up-regulated, suggesting that they may play an important role in protein biogenesis in M. barkeri during heat stress. JF - Journal of Industrial Microbiology & Biotechnology AU - Zhang, Weiwen AU - Culley, David E AU - Nie, Lei AU - Brockman, Fred J AD - Microbiology Department, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Mail Stop: P7-50, P.O. Box 999, Richland, WA, 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 784 EP - 790 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 33 IS - 9 SN - 1367-5435, 1367-5435 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts KW - DNA biosynthesis KW - Methane KW - Replication KW - Peroxidase KW - Cellulose KW - Methanosarcina barkeri KW - Thioredoxin-disulfide reductase KW - Polysaccharides KW - DNA microarrays KW - Oligonucleotides KW - Catalase KW - transposase KW - Recombination KW - Hsp70 protein KW - Reactive oxygen species KW - Superoxide dismutase KW - Hsp60 protein KW - Environmental effects KW - Protein turnover KW - Heat shock KW - Environmental stress KW - Chaperones KW - W 30910:Imaging KW - N 14820:DNA Metabolism & Structure KW - A 01320:Microbial Degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754568582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Industrial+Microbiology+%26+Biotechnology&rft.atitle=DNA+microarray+analysis+of+anaerobic+Methanosarcina+barkeri+reveals+responses+to+heat+shock+and+air+exposure&rft.au=Zhang%2C+Weiwen%3BCulley%2C+David+E%3BNie%2C+Lei%3BBrockman%2C+Fred+J&rft.aulast=Zhang&rft.aufirst=Weiwen&rft.date=2006-09-01&rft.volume=33&rft.issue=9&rft.spage=784&rft.isbn=&rft.btitle=&rft.title=Journal+of+Industrial+Microbiology+%26+Biotechnology&rft.issn=13675435&rft_id=info:doi/10.1007%2Fs10295-006-0114-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-05-27 N1 - SubjectsTermNotLitGenreText - Methane; DNA biosynthesis; Replication; Peroxidase; Cellulose; Thioredoxin-disulfide reductase; Polysaccharides; Oligonucleotides; DNA microarrays; Catalase; Recombination; transposase; Reactive oxygen species; Hsp70 protein; Superoxide dismutase; Environmental effects; Hsp60 protein; Heat shock; Protein turnover; Chaperones; Environmental stress; Methanosarcina barkeri DO - http://dx.doi.org/10.1007/s10295-006-0114-3 ER - TY - JOUR T1 - c-Type cytochrome-dependent formation of U(IV) nanoparticles by Shewanella oneidensis. AN - 68136051; 16875436 AB - Modern approaches for bioremediation of radionuclide contaminated environments are based on the ability of microorganisms to effectively catalyze changes in the oxidation states of metals that in turn influence their solubility. Although microbial metal reduction has been identified as an effective means for immobilizing highly-soluble uranium(VI) complexes in situ, the biomolecular mechanisms of U(VI) reduction are not well understood. Here, we show that c-type cytochromes of a dissimilatory metal-reducing bacterium, Shewanella oneidensis MR-1, are essential for the reduction of U(VI) and formation of extracellular UO(2) nanoparticles. In particular, the outer membrane (OM) decaheme cytochrome MtrC (metal reduction), previously implicated in Mn(IV) and Fe(III) reduction, directly transferred electrons to U(VI). Additionally, deletions of mtrC and/or omcA significantly affected the in vivo U(VI) reduction rate relative to wild-type MR-1. Similar to the wild-type, the mutants accumulated UO(2) nanoparticles extracellularly to high densities in association with an extracellular polymeric substance (EPS). In wild-type cells, this UO(2)-EPS matrix exhibited glycocalyx-like properties and contained multiple elements of the OM, polysaccharide, and heme-containing proteins. Using a novel combination of methods including synchrotron-based X-ray fluorescence microscopy and high-resolution immune-electron microscopy, we demonstrate a close association of the extracellular UO(2) nanoparticles with MtrC and OmcA (outer membrane cytochrome). This is the first study to our knowledge to directly localize the OM-associated cytochromes with EPS, which contains biogenic UO(2) nanoparticles. In the environment, such association of UO(2) nanoparticles with biopolymers may exert a strong influence on subsequent behavior including susceptibility to oxidation by O(2) or transport in soils and sediments. JF - PLoS biology AU - Marshall, Matthew J AU - Beliaev, Alexander S AU - Dohnalkova, Alice C AU - Kennedy, David W AU - Shi, Liang AU - Wang, Zheming AU - Boyanov, Maxim I AU - Lai, Barry AU - Kemner, Kenneth M AU - McLean, Jeffrey S AU - Reed, Samantha B AU - Culley, David E AU - Bailey, Vanessa L AU - Simonson, Cody J AU - Saffarini, Daad A AU - Romine, Margaret F AU - Zachara, John M AU - Fredrickson, James K AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, United States of America. Y1 - 2006/09// PY - 2006 DA - September 2006 SP - 1 VL - 4 IS - 9 KW - Bacterial Outer Membrane Proteins KW - 0 KW - Cytochrome c Group KW - Polysaccharides, Bacterial KW - Uranium Compounds KW - Phosphorus KW - 27YLU75U4W KW - Uranium KW - 4OC371KSTK KW - Iron KW - E1UOL152H7 KW - uranium dioxide KW - L70487KUZO KW - Index Medicus KW - Oxidation-Reduction KW - Metal Nanoparticles -- chemistry KW - Glycocalyx -- chemistry KW - Phosphorus -- metabolism KW - Bacterial Outer Membrane Proteins -- metabolism KW - Biodegradation, Environmental KW - Tissue Distribution KW - Polysaccharides, Bacterial -- metabolism KW - Uranium -- pharmacokinetics KW - Iron -- metabolism KW - Shewanella -- metabolism KW - Uranium Compounds -- pharmacokinetics KW - Uranium Compounds -- metabolism KW - Cytochrome c Group -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68136051?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=PLoS+biology&rft.atitle=c-Type+cytochrome-dependent+formation+of+U%28IV%29+nanoparticles+by+Shewanella+oneidensis.&rft.au=Marshall%2C+Matthew+J%3BBeliaev%2C+Alexander+S%3BDohnalkova%2C+Alice+C%3BKennedy%2C+David+W%3BShi%2C+Liang%3BWang%2C+Zheming%3BBoyanov%2C+Maxim+I%3BLai%2C+Barry%3BKemner%2C+Kenneth+M%3BMcLean%2C+Jeffrey+S%3BReed%2C+Samantha+B%3BCulley%2C+David+E%3BBailey%2C+Vanessa+L%3BSimonson%2C+Cody+J%3BSaffarini%2C+Daad+A%3BRomine%2C+Margaret+F%3BZachara%2C+John+M%3BFredrickson%2C+James+K&rft.aulast=Marshall&rft.aufirst=Matthew&rft.date=2006-09-01&rft.volume=4&rft.issue=9&rft.spage=e268&rft.isbn=&rft.btitle=&rft.title=PLoS+biology&rft.issn=1545-7885&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-01-26 N1 - Date created - 2006-11-13 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Appl Environ Microbiol. 1993 Nov;59(11):3572-6 [8285665] Annu Rev Microbiol. 1994;48:311-43 [7826009] Biochim Biophys Acta. 1997 Jun 12;1326(2):307-18 [9218561] J Bacteriol. 1997 Oct;179(20):6228-37 [9335267] J Bacteriol. 1998 Jul;180(14):3686-91 [9658015] Biochim Biophys Acta. 1998 Aug 14;1373(1):237-51 [9733973] J Bacteriol. 1998 Dec;180(23):6292-7 [9829939] Biochem J. 1999 Sep 1;342 ( Pt 2):439-48 [10455032] Adv Microb Physiol. 2004;49:219-86 [15518832] Environ Sci Technol. 2004 Nov 1;38(21):5591-7 [15575276] Appl Environ Microbiol. 2000 May;66(5):2006-11 [10788374] Nature. 2000 May 4;405(6782):94-7 [10811225] Mol Microbiol. 2001 Feb;39(3):722-30 [11169112] Environ Microbiol. 2001 Dec;3(12):774-84 [11846771] Appl Environ Microbiol. 2002 May;68(5):2294-9 [11976100] Environ Sci Technol. 2002 Apr 1;36(7):1452-9 [11999050] J Bacteriol. 2004 Dec;186(24):8385-400 [15576789] Appl Environ Microbiol. 2005 Aug;71(8):4935-7 [16085900] J Bacteriol. 2005 Oct;187(20):7138-45 [16199584] Appl Environ Microbiol. 2005 Nov;71(11):7453-60 [16269787] Nature. 2002 Sep 12;419(6903):134 [12226656] Biotechnol Bioeng. 2002 Dec 20;80(6):637-49 [12378605] Nat Biotechnol. 2002 Nov;20(11):1118-23 [12368813] Biochem J. 2003 Jan 1;369(Pt 1):153-61 [12356333] Appl Environ Microbiol. 2003 Jun;69(6):3636-9 [12788772] Lett Appl Microbiol. 2003;37(3):254-8 [12904229] Appl Environ Microbiol. 2003 Oct;69(10):5884-91 [14532040] Science. 2003 Dec 12;302(5652):1967-9 [14671304] OMICS. 2004 Spring;8(1):57-77 [15107237] Arch Microbiol. 2004 Jun;181(6):398-406 [15114437] Science. 2004 Oct 22;306(5696):686-7 [15499017] Anal Biochem. 1976 Sep;75(1):168-76 [822747] Appl Environ Microbiol. 1992 Mar;58(3):850-6 [1575486] J Bacteriol. 1992 Jun;174(11):3429-38 [1592800] J Bacteriol. 2006 Jul;188(13):4705-14 [16788180] Comment In: PLoS Biol. 2006 Aug;4(8):e282 [20076626] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Nanoporous transition metal phosphate materials for sequestration of redox sensitive contaminants AN - 50541400; 2008-125415 JF - Geochimica et Cosmochimica Acta AU - Wellman, D M AU - Mattigod, S V AU - Fryxell, G E AU - Clayton, L N AU - Glovack, J N AU - Parker, K E AU - Anonymous Y1 - 2006/09// PY - 2006 DA - September 2006 SP - 1 PB - Elsevier, New York, NY VL - 70 IS - 18S SN - 0016-7037, 0016-7037 KW - toxic materials KW - experimental studies KW - X-ray diffraction data KW - isotopes KW - pollutants KW - pollution KW - porous materials KW - X-ray spectra KW - TEM data KW - XANES spectra KW - phosphate ion KW - radioactive isotopes KW - metals KW - EXAFS data KW - spectra KW - nanoparticles KW - geochemistry KW - Eh KW - storage KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50541400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Nanoporous+transition+metal+phosphate+materials+for+sequestration+of+redox+sensitive+contaminants&rft.au=Wellman%2C+D+M%3BMattigod%2C+S+V%3BFryxell%2C+G+E%3BClayton%2C+L+N%3BGlovack%2C+J+N%3BParker%2C+K+E%3BAnonymous&rft.aulast=Wellman&rft.aufirst=D&rft.date=2006-09-01&rft.volume=70&rft.issue=18S&rft.spage=A696&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2006.06.1513 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 16th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Eh; EXAFS data; experimental studies; geochemistry; isotopes; metals; nanoparticles; phosphate ion; pollutants; pollution; porous materials; radioactive isotopes; spectra; storage; TEM data; toxic materials; X-ray diffraction data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2006.06.1513 ER - TY - RPRT T1 - Hanford Site environmental report for calendar year 2005 (including some early 2006 information) AN - 50525507; 2009-013789 JF - Hanford Site environmental report for calendar year 2005 (including some early 2006 information) A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2006/09// PY - 2006 DA - September 2006 KW - United States KW - soils KW - Washington KW - monitoring KW - pollutants KW - regulations KW - effluents KW - surface water KW - pollution KW - Hanford Site KW - environmental effects KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - transport KW - decontamination KW - soil pollution KW - ecology KW - waste disposal KW - water pollution KW - heavy metals KW - Superfund sites KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50525507?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2006-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+Site+environmental+report+for+calendar+year+2005+%28including+some+early+2006+information%29&rft.title=Hanford+Site+environmental+report+for+calendar+year+2005+%28including+some+early+2006+information%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 218 N1 - Availability - U. S. Department of Energy, Office of Scientific and Technical Information, Oak Ridge, TN, United States N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - In 3 volumes N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Measurement of effect of chemical reactions on the hydrologic properties of fractured glass media using a tri-axial flow and transport apparatus AN - 50101634; 2010-012375 AB - Understanding the effect of chemical reactions on the hydrologic properties of sub-surface media is critical to many natural and engineered sub-surface systems. Methods and information for such characterization of fractured media are severely lacking. Influence of glass corrosion (precipitation and dissolution) reactions on fractured glass blocks HAN28 and LAWBP1, two candidate waste glass forms for a proposed immobilized low-activity waste (ILAW) disposal facility at the Hanford, WA site, was investigated. Flow and tracer transport experiments were conducted in such randomly and multiply fractured ILAW glass blocks, before and after subjecting them to corrosion using vapor hydration testing (VHT) at 200 degrees C temperature and 200 psig (1379 KPa) pressure, causing the precipitation of alteration products. A tri-axial fractured media flow and transport experimental apparatus, which allows the simultaneous measurement of flow and transport properties and their anisotropy, has been designed and built for this purpose. Such apparatus for fractured media characterization are being reported in the literature only recently. Hydraulic properties of fractured blocks were measured in different orientations and along different cardinal directions, before and after glass corrosion reactions. Miscible displacement experiments using a non-reactive dye were also conducted, before and after glass corrosion reactions, to study the tracer transport behavior through such media. Initial efforts to analyze breakthrough curve (BTC) data using a 1D advection dispersion equation (ADE) solution revealed that a different fractured media transport model, which accurately accounts for the heterogeneous transport behavior in 3D, may be necessary for such interpretation. It was found that glass reactions could have a significant influence on the hydrologic properties of fractured ILAW glass media. The methods and results are useful to better understand the effect of chemical reactions on the hydrologic properties of fractured geomedia in general and glass media in particular. JF - Journal of Hydrology AU - Saripalli, K Prasad AU - Lindberg, Michael J AU - Meyer, Philip D Y1 - 2006/09// PY - 2006 DA - September 2006 SP - 685 EP - 693 PB - Elsevier, Amsterdam VL - 328 IS - 3-4 SN - 0022-1694, 0022-1694 KW - fractured materials KW - experimental studies KW - three-dimensional models KW - porous materials KW - hydrochemistry KW - triaxial tests KW - radioactive waste KW - laboratory studies KW - hydration KW - chemical reactions KW - diagenesis KW - tracers KW - applications KW - hydraulic conductivity KW - waste disposal KW - glass materials KW - geochemistry KW - underground disposal KW - disposal barriers KW - anisotropy KW - P-T conditions KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50101634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Measurement+of+effect+of+chemical+reactions+on+the+hydrologic+properties+of+fractured+glass+media+using+a+tri-axial+flow+and+transport+apparatus&rft.au=Saripalli%2C+K+Prasad%3BLindberg%2C+Michael+J%3BMeyer%2C+Philip+D&rft.aulast=Saripalli&rft.aufirst=K&rft.date=2006-09-01&rft.volume=328&rft.issue=3-4&rft.spage=685&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2006.01.017 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - anisotropy; applications; chemical reactions; diagenesis; disposal barriers; experimental studies; fractured materials; geochemistry; glass materials; hydration; hydraulic conductivity; hydrochemistry; laboratory studies; P-T conditions; porous materials; radioactive waste; three-dimensional models; tracers; triaxial tests; underground disposal; waste disposal DO - http://dx.doi.org/10.1016/j.jhydrol.2006.01.017 ER - TY - JOUR T1 - The origin and age of biogeochemical trends in deep fracture water of the Witwatersrand Basin, South Africa AN - 50065200; 2010-028508 JF - Geomicrobiology Journal AU - Onstott, T C AU - Lin, L H AU - Davidson, M AU - Mislowack, B AU - Borcsik, M AU - Hall, J AU - Slater, G AU - Ward, J AU - Sherwood Lollar, Barbara AU - Lippmann-Pipke, Johanna AU - Boice, E AU - Pratt, L M AU - Pfiffner, S AU - Moser, Duane P AU - Gihring, T AU - Kieft, Thomas L AU - Phelps, Tommy J AU - Vanheerden, E AU - Litthaur, D AU - Deflaun, M AU - Rothmel, R AU - Wanger, G AU - Southam, Gordon Y1 - 2006/09// PY - 2006 DA - September 2006 SP - 369 EP - 414 PB - Taylor & Francis, London VL - 23 IS - 6 SN - 0149-0451, 0149-0451 KW - water quality KW - mining KW - deep aquifers KW - oxygen KW - underground mining KW - isotopes KW - Beatrix Mine KW - aliphatic hydrocarbons KW - salinity KW - preferential flow KW - He-4 KW - stable isotopes KW - iron KW - fractures KW - ferric iron KW - noble gases KW - methanogenesis KW - helium KW - ecology KW - South Africa KW - Witwatersrand KW - meteoric water KW - concentration KW - methane KW - Witwatersrand Supergroup KW - Precambrian KW - Gauteng South Africa KW - paleohydrology KW - isotope ratios KW - biochemistry KW - O-18/O-16 KW - alkanes KW - hydrothermal conditions KW - aquifers KW - nutrients KW - organic compounds KW - detection KW - D/H KW - metals KW - infiltration KW - hydrogen KW - Southern Africa KW - hydrocarbons KW - Africa KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50065200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=The+origin+and+age+of+biogeochemical+trends+in+deep+fracture+water+of+the+Witwatersrand+Basin%2C+South+Africa&rft.au=Onstott%2C+T+C%3BLin%2C+L+H%3BDavidson%2C+M%3BMislowack%2C+B%3BBorcsik%2C+M%3BHall%2C+J%3BSlater%2C+G%3BWard%2C+J%3BSherwood+Lollar%2C+Barbara%3BLippmann-Pipke%2C+Johanna%3BBoice%2C+E%3BPratt%2C+L+M%3BPfiffner%2C+S%3BMoser%2C+Duane+P%3BGihring%2C+T%3BKieft%2C+Thomas+L%3BPhelps%2C+Tommy+J%3BVanheerden%2C+E%3BLitthaur%2C+D%3BDeflaun%2C+M%3BRothmel%2C+R%3BWanger%2C+G%3BSoutham%2C+Gordon&rft.aulast=Onstott&rft.aufirst=T&rft.date=2006-09-01&rft.volume=23&rft.issue=6&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/10.1080%2F01490450600875688 L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Conference title - General meeting of the American Society for Microbiology; symposium on Microbial life in the deepest region of the Earth's biophere N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 48 N1 - Document feature - illus. incl. sect., sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - Africa; aliphatic hydrocarbons; alkanes; aquifers; Beatrix Mine; biochemistry; concentration; D/H; deep aquifers; detection; ecology; ferric iron; fractures; Gauteng South Africa; He-4; helium; hydrocarbons; hydrogen; hydrothermal conditions; infiltration; iron; isotope ratios; isotopes; metals; meteoric water; methane; methanogenesis; microorganisms; mining; noble gases; nutrients; O-18/O-16; organic compounds; oxygen; paleohydrology; Precambrian; preferential flow; salinity; South Africa; Southern Africa; stable isotopes; underground mining; water quality; Witwatersrand; Witwatersrand Supergroup DO - http://dx.doi.org/10.1080/01490450600875688 ER - TY - JOUR T1 - Geomicrobial Processes and Biodiversity in the Deep Terrestrial Subsurface AN - 20285989; 7359784 AB - The concept of a deep microbial biosphere has advanced over the past several decades from a hypothesis viewed with considerable skepticism to being widely accepted. Phylogenetically diverse prokaryotes have been cultured from or detected via characterization of directly-extracted nucleic acids from a wide range of deep terrestrial environments. Recent advances have linked the metabolic potential of these microorganisms, determined directly or inferred from phylogeny, to biogeochemical reactions determined via geochemical measurements and modeling. Buried organic matter or kerogen is an important source of energy for sustaining anaerobic heterotrophic microbial communities in deep sediments and sedimentary rock although rates of respiration are among the slowest rates measured on the planet. In contrast, Subsurface Lithoautotrophic Microbial Ecosystems based on H 2 as the primary energy source appear to dominate in many crystalline rock environments. These photosynthesis-independent ecosystems remain an enigma due to the difficulty in accessing and characterizing appropriate samples. Deep mines and dedicated rock laboratories, however, may offer unprecedented opportunities for investigating subsurface microbial communities and their interactions with the geosphere. JF - Geomicrobiology Journal AU - Fredrickson, James AU - Balkwill, David AD - Pacific Northwest National Laboratory, Richland, Washington, 99352, USA Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 345 EP - 356 PB - Taylor & Francis Inc., 325 Chestnut Street Suite 800 Philadelphia PA 19106 USA, [URL:http://www.taylorandfrancis.com/] VL - 23 IS - 6 SN - 0149-0451, 0149-0451 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - lithoautotrophy KW - hydrogen KW - phylogeny KW - community structure KW - repository KW - Phylogeny KW - nucleic acids KW - Terrestrial environments KW - Organic matter KW - Respiration KW - Biodiversity KW - Biosphere KW - Mines KW - Sediments KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20285989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Geomicrobial+Processes+and+Biodiversity+in+the+Deep+Terrestrial+Subsurface&rft.au=Fredrickson%2C+James%3BBalkwill%2C+David&rft.aulast=Fredrickson&rft.aufirst=James&rft.date=2006-09-01&rft.volume=23&rft.issue=6&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/10.1080%2F01490450600875571 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-05-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Phylogeny; nucleic acids; Terrestrial environments; Respiration; Organic matter; Biodiversity; Biosphere; Mines; Sediments DO - http://dx.doi.org/10.1080/01490450600875571 ER - TY - JOUR T1 - The Distribution of Microbial Taxa in the Subsurface Water of the Kalahari Shield, South Africa AN - 20254835; 7359787 AB - Microbial communities within deep subsurface environments were analyzed by 16S rRNA gene cloning. Clone libraries from 27 borehole fluid, 7 mining- contaminated, and 5 rock samples were compared. Borehole fluids derived from deep fractures were populated by microbial communities with low diversity with an average of 11 and 5 bacterial and archaeal OTUs respectively. Low taxa richness was likely driven by limited biogeochemical reactions available for growth and not extreme parameters such as pH and temperature. Novel taxa of Firmicutes were discovered, commonly found in warm, slightly alkaline, anoxic fracture fluids. Highly divergent lineages of Archaea, unique to South African deep subsurface fracture fluids, are also described. Clone library clustering analyses based on LIBSHUFF phylogenetic relatedness revealed distinct groups of samples corresponding with sample source and geochemistry. JF - Geomicrobiology Journal AU - Gihring, T AU - Moser, D AU - Lin, L-H AU - Davidson, M AU - Onstott, T AU - Morgan, L AU - Milleson, M AU - Kieft, T AU - Trimarco, E AU - Balkwill, D AU - Dollhopf, M AD - Environmental Microbiology Group, Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 415 EP - 430 PB - Taylor & Francis Inc., 325 Chestnut Street Suite 800 Philadelphia PA 19106 USA, [URL:http://www.taylorandfrancis.com/] VL - 23 IS - 6 SN - 0149-0451, 0149-0451 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - 16S rRNA gene KW - Firmicutes KW - groundwater KW - microbial ecology KW - subsurface KW - Temperature effects KW - Phylogeny KW - Archaea KW - Fractures KW - pH effects KW - rRNA 16S KW - A 01450:Environmental Pollution & Waste Treatment KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20254835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=The+Distribution+of+Microbial+Taxa+in+the+Subsurface+Water+of+the+Kalahari+Shield%2C+South+Africa&rft.au=Gihring%2C+T%3BMoser%2C+D%3BLin%2C+L-H%3BDavidson%2C+M%3BOnstott%2C+T%3BMorgan%2C+L%3BMilleson%2C+M%3BKieft%2C+T%3BTrimarco%2C+E%3BBalkwill%2C+D%3BDollhopf%2C+M&rft.aulast=Gihring&rft.aufirst=T&rft.date=2006-09-01&rft.volume=23&rft.issue=6&rft.spage=415&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/10.1080%2F01490450600875696 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-05-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Phylogeny; Temperature effects; Fractures; rRNA 16S; pH effects; Archaea; Firmicutes DO - http://dx.doi.org/10.1080/01490450600875696 ER - TY - JOUR T1 - Retention of hydrogen in fcc metals irradiated at temperatures leading to high densities of bubbles or voids AN - 20253992; 8549937 AB - Large amounts of hydrogen and helium are generated in structural metals in accelerator-driven systems. It is shown that under certain conditions, hydrogen can be stored in irradiated nickel and stainless steels at levels strongly in excess of that predicted by Sieverts' law. These conditions are first, the availability of hydrogen from various radiolytic and environmental sources and second, the formation of radiation-induced cavities to store hydrogen. These cavities can be highly pressurized bubbles or under-pressurized voids, with concurrent helium in the cavities at either low or very high levels. Transmutant sources of hydrogen are often insufficient to pressurize these cavities, and therefore environmental sources are required. The stored hydrogen appears to be stable for many years at room temperature. A conceptual model to describe such behavior requires the continuous generation of hydrogen from (n,p) reactions and possibly other radiolytic sources which can create a supersaturation of hydrogen in the metal, leading to the pressurization of voids and helium bubbles. Once captured in a bubble, the hydrogen is assumed to be in molecular form. Dissolution back into the metal requires chemisorption and dissociation on the bubble surface. Both of these processes have large activation barriers, particularly when oxygen, carbon, and other impurities poison the bubble surface. However, these chemisorbed poisons may reduce but not entirely restrict the ingress or egress of atomic hydrogen. JF - Journal of Nuclear Materials AU - Garner, F A AU - Simonen, E P AU - Oliver, B M AU - Greenwood, L R AU - Grossbeck, M L AU - Wolfer, W G AU - Scott, P M AD - Pacific Northwest National Laboratory, Materials Resources Department, 902 Battelle Boulevard, MSIN: P8-15, Richland, WA 99354, United States, frank.garner@pnl.gov Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 122 EP - 135 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 356 IS - 1-3 SN - 0022-3115, 0022-3115 KW - Environment Abstracts KW - Metals KW - Nickel KW - Temperature KW - Hydrogen KW - Oxygen KW - Radioactive materials KW - Helium KW - Steel KW - ENA 14:Radiological Contamination UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20253992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nuclear+Materials&rft.atitle=Retention+of+hydrogen+in+fcc+metals+irradiated+at+temperatures+leading+to+high+densities+of+bubbles+or+voids&rft.au=Garner%2C+F+A%3BSimonen%2C+E+P%3BOliver%2C+B+M%3BGreenwood%2C+L+R%3BGrossbeck%2C+M+L%3BWolfer%2C+W+G%3BScott%2C+P+M&rft.aulast=Garner&rft.aufirst=F&rft.date=2006-09-01&rft.volume=356&rft.issue=1-3&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nuclear+Materials&rft.issn=00223115&rft_id=info:doi/10.1016%2Fj.jnucmat.2006.05.023 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Hydrogen; Metals; Helium; Temperature; Oxygen; Steel; Radioactive materials; Nickel DO - http://dx.doi.org/10.1016/j.jnucmat.2006.05.023 ER - TY - JOUR T1 - Helium and hydrogen release measurements on various alloys irradiated in SINQ AN - 20249096; 8549939 AB - Three irradiations have been performed in the Swiss Spallation Neutron Source (SINQ) to establish a materials database for mixed proton and neutron fluxes for future spallation neutron and other accelerator sources. Samples of 316LN, F82H, AlMg3, and Zircaloy-2 from STIP-II have been analyzed for their total helium and hydrogen contents and their release characteristics with temperature. Helium and hydrogen release measurements showed considerable levels of deuterium and tritium species which generally mirrored those of hydrogen. Hydrogen release occurred from about 300 DGC for the AlMg3 to about 800 DGC for the Zircaloy-2. For the Zircaloy-2 and the steels, helium release began to occur at between 1100 and 1200 DGC, which is consistent with previous measurements on irradiated steels. Modeling of the hydrogen release data for the 316 and F82H suggests two traps of differing energy dependent on the irradiation dose and temperature. The higher energy traps are probably voids created from vacancy coalescence. JF - Journal of Nuclear Materials AU - Oliver, B M AU - Dai, Y AU - Causey, R A AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA, brian.oliver@pnl.gov Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 148 EP - 156 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 356 IS - 1-3 SN - 0022-3115, 0022-3115 KW - Environment Abstracts KW - Temperature KW - Hydrogen KW - Tritium KW - Irradiation KW - Radioactive materials KW - Alloys KW - Helium KW - deuterium KW - Steel KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20249096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=Gillespie%2C+B+M%3BDiediker%2C+L+P%3BDyekman%2C+D+L&rft.aulast=Gillespie&rft.aufirst=B&rft.date=2001-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Quality+assurance&rft.title=Quality+assurance&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Hydrogen; Helium; Steel; Temperature; Irradiation; Alloys; Radioactive materials; Tritium; deuterium DO - http://dx.doi.org/10.1016/j.jnucmat.2006.05.025 ER - TY - JOUR T1 - Preparation and evaluation of spore-specific affinity-augmented bio-imprinted beads AN - 19850434; 7195597 AB - A novel, affinity-augmented, bacterial spore-imprinted, bead material was synthesized, based on a procedure developed for vegetative bacteria. The imprinted beads were intended as a front-end spore capture/concentration stage of an integrated biological detection system. Our approach involved embedding bead surfaces with Bacillus thuringiensis kurstaki (Bt) spores (as a surrogate for Bacillus anthracis) during synthesis. Subsequent steps involved lithographic deactivation using a perfluoroether; spore removal to create imprint sites; and coating imprints with the lectin, concanavalin A, to provide general affinity. The synthesis of the intended material with the desired imprints was verified by scanning electron and confocal laser-scanning microscopy. The material was evaluated using spore-binding assays with either Bt or Bacillus subtilis (Bs) spores. The binding assays indicated strong spore-binding capability and a robust imprinting effect that accounted for 25% additional binding over non-imprinted controls. The binding assay results also indicated that further refinement of the surface deactivation procedure would enhance the performance of the imprinted substrate. JF - Analytical and Bioanalytical Chemistry AU - Harvey, S D AU - Mong, G M AU - Ozanich, R M AU - Mclean, J S AU - Goodwin, S M AU - Valentine, N B AU - Fredrickson, J K AD - Pacific Northwest National Laboratory, P.O. Box 999/MSIN P8-50, Richland, WA 99352, USA, scott.harvey@pnl.gov Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 211 EP - 219 VL - 386 IS - 2 SN - 1618-2642, 1618-2642 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Bacillus subtilis KW - Concanavalin A KW - Lectins KW - Deactivation KW - Bacillus anthracis KW - Spores KW - Imprinting KW - Bacillus thuringiensis kurstaki KW - Embedding KW - Coatings KW - W 30940:Products KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19850434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+and+Bioanalytical+Chemistry&rft.atitle=Preparation+and+evaluation+of+spore-specific+affinity-augmented+bio-imprinted+beads&rft.au=Harvey%2C+S+D%3BMong%2C+G+M%3BOzanich%2C+R+M%3BMclean%2C+J+S%3BGoodwin%2C+S+M%3BValentine%2C+N+B%3BFredrickson%2C+J+K&rft.aulast=Harvey&rft.aufirst=S&rft.date=2006-09-01&rft.volume=386&rft.issue=2&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Analytical+and+Bioanalytical+Chemistry&rft.issn=16182642&rft_id=info:doi/10.1007%2Fs00216-006-0622-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Concanavalin A; Lectins; Deactivation; Imprinting; Spores; Embedding; Coatings; Bacillus subtilis; Bacillus anthracis; Bacillus thuringiensis kurstaki DO - http://dx.doi.org/10.1007/s00216-006-0622-z ER - TY - JOUR T1 - Axial Dispersion during Hanford Saltcake Washing AN - 19651538; 7401975 AB - This paper describes laboratory-scale testing conducted to evaluate Selective Dissolution of cesium from non-radioactive Hanford tank 241-S-112 salt cake simulant containing the primary chemicals found in the actual tank. A modified axial dispersion model with increasing axial dispersion was developed to predict cesium removal. The model recognizes that water dissolves the salt cake during washing, which causes an increase in the axial dispersion during the wash. This model was subsequently compared with on-line cesium measurements from the retrieval of tank 241-S-112. The model had remarkably good agreement with both the lab-scale and full-scale data. JF - Separation Science and Technology AU - Josephson, Gary AU - Geeting, J AU - Lessor, D AU - Barton, W B AD - Pacific Northwest National Laboratory, Richland, WA, USA Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 2267 EP - 2282 PB - Taylor & Francis Ltd., 11 New Fetter Lane London EC4P 4EE UK, [mailto:info@tandf.co.uk], [URL:http://www.tandf.co.uk] VL - 41 IS - 10 SN - 0149-6395, 0149-6395 KW - Pollution Abstracts UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19651538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Separation+Science+and+Technology&rft.atitle=Axial+Dispersion+during+Hanford+Saltcake+Washing&rft.au=Josephson%2C+Gary%3BGeeting%2C+J%3BLessor%2C+D%3BBarton%2C+W+B&rft.aulast=Josephson&rft.aufirst=Gary&rft.date=2006-09-01&rft.volume=41&rft.issue=10&rft.spage=2267&rft.isbn=&rft.btitle=&rft.title=Separation+Science+and+Technology&rft.issn=01496395&rft_id=info:doi/10.1080%2F01496390600745586 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1080/01496390600745586 ER - TY - JOUR T1 - Surface Flow Outlets to Protect Juvenile Salmonids Passing Through Hydropower Dams AN - 19557006; 7263946 JF - Reviews in Fisheries Science AU - Johnson, GE AU - Dauble, D D AD - Pacific Northwest National Laboratory, Washington, Richland, USA Y1 - 2006/09// PY - 2006 DA - September 2006 SP - 213 EP - 244 VL - 14 IS - 3 SN - 1064-1262, 1064-1262 KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Juveniles KW - Dams KW - Anadromous species KW - Salmonidae KW - Q1 08341:General KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19557006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Fisheries+Science&rft.atitle=Surface+Flow+Outlets+to+Protect+Juvenile+Salmonids+Passing+Through+Hydropower+Dams&rft.au=Johnson%2C+GE%3BDauble%2C+D+D&rft.aulast=Johnson&rft.aufirst=GE&rft.date=2006-09-01&rft.volume=14&rft.issue=3&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Fisheries+Science&rft.issn=10641262&rft_id=info:doi/10.1080%2F10641260600864023 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-03-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Juveniles; Dams; Anadromous species; Salmonidae DO - http://dx.doi.org/10.1080/10641260600864023 ER - TY - JOUR T1 - Aspergillus niger genomics: Past, present and into the future AN - 19528841; 8132712 AB - Aspergillus niger is a filamentous ascomycete fungus that is ubiquitous in the environment and has been implicated in opportunistic infections of humans. In addition to its role as an opportunistic human pathogen, A. niger is economically important as a fermentation organism used for the production of citric acid. Industrial citric acid production by A. niger represents one of the most efficient, highest yield bioprocesses in use currently by industry. The genome size of A. niger is estimated to be between 35.5 and 38.5 megabases (Mb) divided among eight chromosomes/linkage groups that vary in size from 3.5-6.6 Mb. Currently, there are three independent A. niger genome projects, an indication of the economic importance of this organism. The rich amount of data resulting from these multiple A. niger genome sequences will be used for basic and applied research programs applicable to fermentation process development, morphology and pathogenicity. JF - Medical Mycology AU - Baker, Scott E AD - Fungal Biotechnology Team, Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 17 EP - 21 PB - Taylor & Francis, 11 New Fetter Lane London EC4P 4EE UK, [mailto:info@tandf.co.uk], [URL:http://www.tandf.co.uk] VL - 44 SN - 1369-3786, 1369-3786 KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Data processing KW - Fermentation KW - Pathogens KW - Opportunist infection KW - Chromosomes KW - Pathogenicity KW - Ascomycetes KW - genomics KW - Economic importance KW - Aspergillus niger KW - Research programs KW - Citric acid KW - W 30960:Bioinformatics & Computer Applications KW - K 03310:Genetics & Taxonomy KW - G 07780:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19528841?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Medical+Mycology&rft.atitle=Aspergillus+niger+genomics%3A+Past%2C+present+and+into+the+future&rft.au=Baker%2C+Scott+E&rft.aulast=Baker&rft.aufirst=Scott&rft.date=2006-09-01&rft.volume=44&rft.issue=&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Medical+Mycology&rft.issn=13693786&rft_id=info:doi/10.1080%2F13693780600921037 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Chromosomes; Data processing; Pathogenicity; Fermentation; genomics; Pathogens; Economic importance; Research programs; Opportunist infection; Citric acid; Ascomycetes; Aspergillus niger DO - http://dx.doi.org/10.1080/13693780600921037 ER - TY - JOUR T1 - Proteomic Analysis of Salmonella enterica Serovar Typhimurium Isolated from RAW 264.7 Macrophages: IDENTIFICATION OF A NOVEL PROTEIN THAT CONTRIBUTES TO THE REPLICATION OF SEROVAR TYPHIMURIUM INSIDE MACROPHAGES AN - 19364915; 7123300 AB - To evade host resistance mechanisms, Salmonella enterica serovar Typhimurium (STM), a facultative intracellular pathogen, must alter its proteome following macrophage infection. To identify new colonization and virulence factors that mediate STM pathogenesis, we have isolated STM cells from RAW 264.7 macrophages at various time points following infection and used a liquid chromatography-mass spectrometry-based proteomic approach to detect the changes in STM protein abundance. Because host resistance to STM infection is strongly modulated by the expression of a functional host-resistant regulator, i.e. natural resistance-associated macrophage protein 1 (Nramp1, also called Slc11a1), we have also examined the effects of Nramp1 activity on the changes of STM protein abundances. A total of 315 STM proteins have been identified from isolated STM cells, which are largely housekeeping proteins whose abundances remain relatively constant during the time course of infection. However, 39 STM proteins are strongly induced after infection, suggesting their involvement in modulating colonization and infection. Of the 39 induced proteins, 6 proteins are specifically modulated by Nramp1 activity, including STM3117, as well as STM3118-3119 whose time-dependent abundance changes were confirmed using Western blot analysis. Deletion of the gene encoding STM3117 resulted in a dramatic reduction in the ability of STM to colonize wild-type RAW 264.7 macrophages, demonstrating a critical involvement of STM3117 in promoting the replication of STM inside macrophages. The predicted function common for STM3117-3119 is biosynthesis and modification of the peptidoglycan layer of the STM cell wall. JF - Journal of Biological Chemistry AU - Shi, Liang AU - Adkins, Joshua N AU - Coleman, James R AU - Schepmoes, Athena A AU - Dohnkova, Alice AU - Mottaz, Heather M AU - Norbeck, Angela D AU - Purvine, Samuel O AU - Manes, Nathan P AU - Smallwood, Heather S AU - Wang, Haixing AU - Forbes, John AU - Gros, Philippe AU - Uzzau, Sergio AU - Rodland, Karin D AU - Heffron, Fred AU - Smith, Richard D AU - Squier, Thomas C AD - Pacific Northwest National Laboratory, Richland, Washington 99354, McGill University, Montreal, Quebec H3G 1Y6, Canada, University of Sassari, 07100 Sassari, Italy and Oregon Health Sciences University, Portland, Oregon 97201 Y1 - 2006/09// PY - 2006 DA - Sep 2006 SP - 29131 EP - 29140 PB - American Society for Biochemistry and Molecular Biology, 9650 Rockville Pike Bethesda MD 20814-3996 USA, [mailto:asbmb@asbmb.faseb.org], [URL:http://www.jbc.org] VL - 281 IS - 39 SN - 0021-9258, 0021-9258 KW - Immunology Abstracts; Microbiology Abstracts B: Bacteriology KW - Macrophages KW - Western blotting KW - virulence factors KW - Replication KW - peptidoglycans KW - Pathogens KW - Infection KW - Short term memory KW - Colonization KW - Gene deletion KW - Salmonella enterica KW - Nramp1 protein KW - proteomics KW - Cell walls KW - J 02350:Immunology KW - F 06910:Microorganisms & Parasites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19364915?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biological+Chemistry&rft.atitle=Proteomic+Analysis+of+Salmonella+enterica+Serovar+Typhimurium+Isolated+from+RAW+264.7+Macrophages%3A+IDENTIFICATION+OF+A+NOVEL+PROTEIN+THAT+CONTRIBUTES+TO+THE+REPLICATION+OF+SEROVAR+TYPHIMURIUM+INSIDE+MACROPHAGES&rft.au=Shi%2C+Liang%3BAdkins%2C+Joshua+N%3BColeman%2C+James+R%3BSchepmoes%2C+Athena+A%3BDohnkova%2C+Alice%3BMottaz%2C+Heather+M%3BNorbeck%2C+Angela+D%3BPurvine%2C+Samuel+O%3BManes%2C+Nathan+P%3BSmallwood%2C+Heather+S%3BWang%2C+Haixing%3BForbes%2C+John%3BGros%2C+Philippe%3BUzzau%2C+Sergio%3BRodland%2C+Karin+D%3BHeffron%2C+Fred%3BSmith%2C+Richard+D%3BSquier%2C+Thomas+C&rft.aulast=Shi&rft.aufirst=Liang&rft.date=2006-09-01&rft.volume=281&rft.issue=39&rft.spage=29131&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Macrophages; Western blotting; virulence factors; Replication; peptidoglycans; Pathogens; Infection; Short term memory; Colonization; Gene deletion; Nramp1 protein; proteomics; Cell walls; Salmonella enterica ER - TY - JOUR T1 - Electrification of the economy and CO sub(2) emissions mitigation AN - 1611616240; 20790566 AB - In this article, the ratio of central station electricity to final energy is used as a measure of electrification. It is well known that this ratio tends to increase with gross domestic product. We show that not only is electrification a characteristic of a reference case with economic growth, but that it is significantly accelerated by a general limitation on carbon emissions. That is, limits on CO sub(2) concentrations, implemented efficiently across the whole economy, result in a higher ratio of electricity to total final energy use. This result reflects the relatively greater suite of options available in reducing CO sub(2) emissions in power generation than in other important components of the economy. Furthermore, electrification is stronger, the more stringent the constraint on CO sub(2) emissions, although the absolute production of electricity may be either greater or smaller in the presence of a CO sub(2) constraint, depending on the technologies available to the sector and to end-use sectors. The base technology scenario we examined was purposefully pessimistic about the evolution of central station and distributed electric technologies, lessening the degree of electrification. The better the performance of the set of options for emissions mitigation in power generation, the greater the acceleration of electrification. JF - Environmental Economics and Policy Studies AU - Edmonds, Jae AU - Wilson, Tom AU - Wise, Marshall AU - Weyant, John AD - Pacific Northwest National Laboratory, Joint Global Change Research Institute at the University of Maryland, College Park Campus 8400 Baltimore Avenue, Suite 201, College Park, MD, 20740-2496, USA Y1 - 2006/09// PY - 2006 DA - September 2006 SP - 175 EP - 203 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 7 IS - 3 SN - 1432-847X, 1432-847X KW - Environment Abstracts KW - Mitigation KW - Environmental economics KW - Electric power generation KW - Energy KW - Economics KW - Emissions KW - Economic growth KW - Energy consumption KW - Carbon dioxide KW - Technology KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1611616240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Economics+and+Policy+Studies&rft.atitle=Electrification+of+the+economy+and+CO+sub%282%29+emissions+mitigation&rft.au=Edmonds%2C+Jae%3BWilson%2C+Tom%3BWise%2C+Marshall%3BWeyant%2C+John&rft.aulast=Edmonds&rft.aufirst=Jae&rft.date=2006-09-01&rft.volume=7&rft.issue=3&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Environmental+Economics+and+Policy+Studies&rft.issn=1432847X&rft_id=info:doi/10.1007%2FBF03353999 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-10-01 N1 - Number of references - 19 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Mitigation; Environmental economics; Energy; Electric power generation; Economics; Emissions; Energy consumption; Economic growth; Carbon dioxide; Technology DO - http://dx.doi.org/10.1007/BF03353999 ER - TY - JOUR T1 - A study of pore geometry effects on anisotropy in hydraulic permeability using the lattice-Boltzmann method AN - 1287376901; 2013-018617 AB - We hypothesize that anisotropy in soil properties arises from pore-scale heterogeneity caused by the alignment of aspherical soil particles. We developed a method to predict the permeability tensor from particle shape and packing structure. Digital geometry maps were created for the pore space in regular cubic and random packs of particles with various aspect ratios using a numerical packing algorithm. The lattice-Boltzmann method was used to simulate saturated flow through these packs, and the effect of particle shape and degree of alignment on the permeability tensor was characterized. Results show that the degree of anisotropy in permeability depends not only upon particle shape and alignment, but also on the three-dimensional structure of the pack. In random packs, more oblate particles and higher degrees of particle alignment lead to reduced permeability perpendicular to the direction of particle alignment compared to the direction parallel to particle alignment. Abstract Copyright (2006) Elsevier, B.V. JF - Advances in Water Resources AU - Stewart, Mark L AU - Ward, Andy L AU - Rector, David R Y1 - 2006/09// PY - 2006 DA - September 2006 SP - 1328 EP - 1340 PB - Elsevier, Oxford VL - 29 IS - 9 SN - 0309-1708, 0309-1708 KW - soils KW - numerical analysis KW - grain size KW - data processing KW - connectivity KW - hydrogeology KW - equations KW - porosity KW - flows KW - models KW - saturation KW - digital simulation KW - hydraulic conductivity KW - algorithms KW - permeability KW - anisotropy KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287376901?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=A+study+of+pore+geometry+effects+on+anisotropy+in+hydraulic+permeability+using+the+lattice-Boltzmann+method&rft.au=Stewart%2C+Mark+L%3BWard%2C+Andy+L%3BRector%2C+David+R&rft.aulast=Stewart&rft.aufirst=Mark&rft.date=2006-09-01&rft.volume=29&rft.issue=9&rft.spage=1328&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2005.10.012 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2013-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2013-02-14 N1 - SubjectsTermNotLitGenreText - algorithms; anisotropy; connectivity; data processing; digital simulation; equations; flows; grain size; hydraulic conductivity; hydrogeology; models; numerical analysis; permeability; porosity; saturation; soils DO - http://dx.doi.org/10.1016/j.advwatres.2005.10.012 ER - TY - JOUR T1 - Reduction of uranyl in the interlayer region of low iron micas under anoxic and aerobic conditions. AN - 68830227; 16955899 AB - The role of the interlayer region of three different FeII-poor micas (2.8, approximately 0.02, and 0.01 FeII atom %) in the reduction of UVI was investigated at pH approximately 4.3, low ionic strength, and 23 degrees C under both anoxic and aerated conditions in batch reactors for 1 to 10 days. U diffusion profiles were mapped with X-ray microscopy, and the oxidation state of U was tracked with XANES as a function of distance from the crystal edge. Peak U concentrations only reached about 0.006-0.0002 atom percent, where the full-width-at-half-maximums of the diffusion fronts were roughly 25-50 microm. Results for anoxic conditions indicated appreciable reduction of uranyl in all three micas with no measurable dependency on distance from the edge. Under aerobic (open to the atmosphere) conditions, U was still partially reduced, although to a lesser degree than for anoxic conditions, and UVI/Utot increased with time. Interestingly, reoxidation reached a plateau after about 3-10 days, leaving an appreciable proportion of U reduced. It is likely that measurable reduction occurred, despite low FeII, because U concentrations were even lower, where FeII/U ratios ranged from about 10(4)-10(2). A coupled diffusion-reduction model was developed that successfully simulated the proximal portion of the diffusion front. The results show that reduction of UVI in the interlayer of low FeII micas is, in principle, viable and that under aerobic conditions reduction is initially faster than reoxidation. This extends the range of possible environments where heterogeneous reduction of UVI by micas might occur. JF - Environmental science & technology AU - Ilton, Eugene S AU - Heald, Steve M AU - Smith, Steven C AU - Elbert, David AU - Liu, Chongxuan AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Eugene.Ilton@pnl.gov Y1 - 2006/08/15/ PY - 2006 DA - 2006 Aug 15 SP - 5003 EP - 5009 VL - 40 IS - 16 SN - 0013-936X, 0013-936X KW - Aluminum Silicates KW - 0 KW - Ions KW - Polypropylenes KW - Polytetrafluoroethylene KW - 9002-84-0 KW - Iron KW - E1UOL152H7 KW - Oxygen KW - S88TT14065 KW - mica KW - V8A1AW0880 KW - Index Medicus KW - Polytetrafluoroethylene -- chemistry KW - Waste Disposal, Fluid KW - Kinetics KW - Hypoxia KW - Hydrogen-Ion Concentration KW - Temperature KW - Absorptiometry, Photon KW - Oxygen -- chemistry KW - Diffusion KW - Environmental Monitoring -- methods KW - Polypropylenes -- chemistry KW - Iron -- analysis KW - Chemistry Techniques, Analytical -- methods KW - Aluminum Silicates -- chemistry KW - Iron -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68830227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Reduction+of+uranyl+in+the+interlayer+region+of+low+iron+micas+under+anoxic+and+aerobic+conditions.&rft.au=Ilton%2C+Eugene+S%3BHeald%2C+Steve+M%3BSmith%2C+Steven+C%3BElbert%2C+David%3BLiu%2C+Chongxuan&rft.aulast=Ilton&rft.aufirst=Eugene&rft.date=2006-08-15&rft.volume=40&rft.issue=16&rft.spage=5003&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-01-16 N1 - Date created - 2006-09-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Increases in Calmodulin Abundance and Stabilization of Activated Inducible Nitric Oxide Synthase Mediate Bacterial Killing in RAW 264.7 Macrophages AN - 19474243; 7171856 AB - The rapid activation of macrophages in response to bacterial antigens is central to the innate immune system that permits the recognition and killing of pathogens to limit infection. To understand regulatory mechanisms underlying macrophage activation, we have investigated changes in the abundance of calmodulin (CaM) and iNOS in response to the bacterial cell wall component lipopolysaccharide (LPS) using RAW 264.7 macrophages. Critical to these measurements was the ability to differentiate free iNOS from the CaM-bound (active) form of iNOS associated with nitric oxide generation. We observe a rapid 2-fold increase in CaM abundance during the first 30 min that is blocked by inhibition of either NF Kappa B nuclear translocation or protein synthesis. A similar 2-fold increase in the abundance of the complex between CaM and iNOS is observed with the same time dependence. In contrast, there are no detectable increases in the CaM-free (i.e., inactive) form of iNOS within the first 2 h; it remains at a very low abundance during the initial phase of macrophage activation. Increasing cellular CaM levels in stably transfected macrophages results in a corresponding increase in the abundance of the CaM/iNOS complex that promotes effective bacterial killing following infection by Salmonella typhimurium. Thus, LPS-dependent increases in CaM abundance function in the stabilization and activation of iNOS on the rapid time scale associated with macrophage activation and bacterial killing. These results explain how CaM and iNOS coordinately function to form a stable complex that is part of a rapid host response that functions within the first 30 min following bacterial infection to upregulate the innate immune system involving macrophage activation. JF - Biochemistry (Washington) AU - Smallwood, H S AU - Shi, L AU - Squier, T C AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA Y1 - 2006/08/15/ PY - 2006 DA - 2006 Aug 15 SP - 9717 EP - 9726 VL - 45 IS - 32 SN - 0006-2960, 0006-2960 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Calcium & Calcified Tissue Abstracts; Microbiology Abstracts B: Bacteriology KW - Macrophages KW - Bacteria KW - Protein biosynthesis KW - Immune system KW - Abundance KW - Pathogens KW - Salmonella typhimurium KW - Infection KW - Cell activation KW - Nitric-oxide synthase KW - Nuclear transport KW - Calmodulin KW - Lipopolysaccharides KW - Nitric oxide KW - Calcium-binding protein KW - Cell walls KW - T 2000:Cellular Calcium KW - J 02330:Biochemistry KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19474243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry+%28Washington%29&rft.atitle=Increases+in+Calmodulin+Abundance+and+Stabilization+of+Activated+Inducible+Nitric+Oxide+Synthase+Mediate+Bacterial+Killing+in+RAW+264.7+Macrophages&rft.au=Smallwood%2C+H+S%3BShi%2C+L%3BSquier%2C+T+C&rft.aulast=Smallwood&rft.aufirst=H&rft.date=2006-08-15&rft.volume=45&rft.issue=32&rft.spage=9717&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/10.1021%2Fbi060485p LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Macrophages; Protein biosynthesis; Immune system; Abundance; Pathogens; Infection; Cell activation; Nitric-oxide synthase; Nuclear transport; Lipopolysaccharides; Calmodulin; Nitric oxide; Calcium-binding protein; Cell walls; Bacteria; Salmonella typhimurium DO - http://dx.doi.org/10.1021/bi060485p ER - TY - JOUR T1 - Aerosol entrainment from a sparged non-Newtonian slurry. AN - 68789577; 16933643 AB - Previous bench-scale experiments have provided data necessary for the development of empirical models that describe aerosol entrainment from bubble bursting. However, previous work has not been extended to non-Newtonian liquid slurries. Design of a waste treatment plant on the Hanford Site in Washington required an evaluation of the applicability of these models outside of their intended range. For this evaluation, aerosol measurements were conducted above an air-sparged mixing tank filled with simulated waste slurry possessing Bingham plastic rheological properties. Three aerosol-size fractions were measured at three sampling heights and for three different sparging rates. The measured entrainment was compared with entrainment models. One model developed based on bench-scale air-water experiments agreed well with measured entrainment. Another model did not agree well with the measured entrainment. It appeared that the source of discrepancy between measured and modeled entrainment stemmed from application beyond the range of data used to develop the model. A possible separation in entrainment coefficients between air-water and steam-water systems was identified. A third entrainment model was adapted to match experimental conditions and fit a posteri to the experimental data, resulting in a modified version that resulted in estimated entrainment rates similar to the first model. JF - Journal of the Air & Waste Management Association (1995) AU - Fritz, Brad G AD - Pacific Northwest National Laboratory, Richland, WA 99354, USA. Bradley.Fritz@pnl.gov Y1 - 2006/08// PY - 2006 DA - August 2006 SP - 1108 EP - 1114 VL - 56 IS - 8 SN - 1096-2247, 1096-2247 KW - Aerosols KW - 0 KW - Air Pollutants, Occupational KW - Index Medicus KW - Environmental Monitoring KW - Particle Size KW - Algorithms KW - Models, Statistical KW - Air Pollutants, Occupational -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68789577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.atitle=Aerosol+entrainment+from+a+sparged+non-Newtonian+slurry.&rft.au=Fritz%2C+Brad+G&rft.aulast=Fritz&rft.aufirst=Brad&rft.date=2006-08-01&rft.volume=56&rft.issue=8&rft.spage=1108&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association+%281995%29&rft.issn=10962247&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-10-02 N1 - Date created - 2006-08-28 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Quantification of volatile organics in soil aging experiments using fourier transform infrared spectroscopy. AN - 68779504; 16925928 AB - On-line Fourier transform infrared (FT-IR) spectroscopy was applied to monitor the concentration of halogenated volatile organic compounds in a sample-preparation process that simulates long-term, slow accumulation of contaminants in soils (i.e., aging). Artificial aging is conducted by circulating a supercritical fluid solution containing the contaminant(s) of interest through a packed soil column. Mid-infrared spectra of several volatile halocarbons were measured in supercritical Xe and CO(2) to evaluate possible interferences from the strong absorption of CO(2). Although some of the C-X bands were partially masked in supercritical CO(2), all of the compounds studied had distinct spectral features in the region 1400-700 cm(-1) and could be monitored in either solvent. Quantitative measurements of halogenated volatile organics in supercritical CO(2) were demonstrated with CCl(4). Excellent results were obtained over the range 7-280 mM. Representative artificial aging experiments were conducted on two test soils using CCl(4) as the contaminant. On-line (FT-IR) estimates of the aged soil concentrations were 1.3-4.4 times higher than off-line concentrations obtained by gas chromatography/mass spectrometry. The discrepancies were primarily ascribed to post-aging losses that occurred during depressurization and subsequent sample handling. FT-IR spectroscopy is shown to be a powerful tool for monitoring soil loading behavior and for developing artificial aging protocols. JF - Applied spectroscopy AU - Thompson, Christopher J AU - Riley, Robert G AU - Amonette, James E AU - Gassman, Paul L AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA. Chris.Thompson@pnl.gov Y1 - 2006/08// PY - 2006 DA - August 2006 SP - 914 EP - 919 VL - 60 IS - 8 SN - 0003-7028, 0003-7028 KW - Environmental Pollutants KW - 0 KW - Hydrocarbons, Halogenated KW - Soil KW - Solvents KW - Carbon Dioxide KW - 142M471B3J KW - Carbon KW - 7440-44-0 KW - Carbon Tetrachloride KW - CL2T97X0V0 KW - Index Medicus KW - Carbon Tetrachloride -- chemistry KW - Linear Models KW - Temperature KW - Environmental Pollutants -- chemistry KW - Pressure KW - Time Factors KW - Hydrocarbons, Halogenated -- chemistry KW - Spectroscopy, Fourier Transform Infrared -- methods KW - Spectroscopy, Fourier Transform Infrared -- instrumentation KW - Carbon -- chemistry KW - Environmental Monitoring -- methods KW - Environmental Monitoring -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68779504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+spectroscopy&rft.atitle=Quantification+of+volatile+organics+in+soil+aging+experiments+using+fourier+transform+infrared+spectroscopy.&rft.au=Thompson%2C+Christopher+J%3BRiley%2C+Robert+G%3BAmonette%2C+James+E%3BGassman%2C+Paul+L&rft.aulast=Thompson&rft.aufirst=Christopher&rft.date=2006-08-01&rft.volume=60&rft.issue=8&rft.spage=914&rft.isbn=&rft.btitle=&rft.title=Applied+spectroscopy&rft.issn=00037028&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-05-16 N1 - Date created - 2006-08-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Evaluation of airflow patterns following procedures established by NUREG-1400. AN - 68613362; 16823267 AB - The U.S. Nuclear Regulatory Commission's guide, NUREG-1400, addresses many aspects of air sampling in the work place. Here, we present detailed examples of the methodology used to conduct two qualitative airflow studies at different sites. In one test, smoke was used to evaluate the airflow patterns within a high-bay building for the purpose of determining appropriate locations for air monitoring equipment. The study revealed a stagnant layer of the air within the transfer area that made predicting movement of contamination within the transfer area difficult. Without conducting an airflow study, the stagnant layer may not have been identified and could have resulted in placement of samplers at inappropriate locations. In a second test, smoke was used to verify the effectiveness of an air space barrier curtain. The results showed that the curtain adequately separated the two air spaces. The methodology employed in each test provided sound, easy to interpret information that satisfied the requirements of each test. The methods described in this article can be applied at most facilities where determination of airflow patterns or the verification of suspected airflow patterns is required. JF - Health physics AU - Fritz, Brad G AU - Khan, Fenton AU - Mendoza, Donaldo P AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA 99354, USA. brad.fritz@pnl.gov Y1 - 2006/08// PY - 2006 DA - August 2006 SP - S18 EP - S23 VL - 91 IS - 2 Suppl SN - 0017-9078, 0017-9078 KW - Air Pollutants, Occupational KW - 0 KW - Air Pollutants, Radioactive KW - Index Medicus KW - United States KW - Government Regulation KW - Ventilation -- methods KW - Ventilation -- standards KW - Nuclear Reactors -- standards KW - Air Pollutants, Occupational -- analysis KW - Air Pollutants, Radioactive -- analysis KW - Environmental Monitoring -- standards KW - Guidelines as Topic KW - Air Movements KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68613362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Evaluation+of+airflow+patterns+following+procedures+established+by+NUREG-1400.&rft.au=Fritz%2C+Brad+G%3BKhan%2C+Fenton%3BMendoza%2C+Donaldo+P&rft.aulast=Fritz&rft.aufirst=Brad&rft.date=2006-08-01&rft.volume=91&rft.issue=2+Suppl&rft.spage=S18&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-08-16 N1 - Date created - 2006-07-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Comparison of American Society of Testing Materials and Soil Science Society of America hydrometer methods for particle-size analysis AN - 51565279; 2006-060977 AB - Particle-size analysis (PSA) is widely used in both soil science and engineering. Soil classification schemes are built on PSA values and recent developments in pedotransfer functions rely on PSA to estimate soil hydraulic properties. Because PSA is method dependent, the standardization of experimental procedures is important for the comparison of reported results. A study was conducted to compare the American Society of Testing Materials (ASTM) hydrometer method (D422) for PSA with the hydrometer method published by the Soil Science Society of America (SSSA). Tests on soils ranging in texture from sand to sandy clay loam were conducted at temperatures ranging from 20 to 30 degrees C. The main difference between methods is the temperature correction, with the ASTM method relying on an empirical correction and the SSSA method using a blank hydrometer reading. Identical texture estimates for all but one of 48 total samples was observed between methods. Percentage of fines, silt, and clay demonstrated relatively consistent values between methods. The ASTM and SSSA methods were compared at values of D50, D30, and D10 (i.e., effective particle diameter values when the size-distributions have dropped to percentages of less than 50, 30, and 10, respectively). Excellent agreement was found between methods for D50 and D30 values (correlations above 0.99). Less agreement was found for D10 (correlation 0.989) values, but still reasonably good. The results suggest that for the range of soil textures evaluated in this study, ASTM and SSSA methods can be used interchangeably for textural analysis. JF - Soil Science Society of America Journal AU - Keller, Jason M AU - Gee, G W Y1 - 2006/08// PY - 2006 DA - August 2006 SP - 1094 EP - 1100 PB - Soil Science Society of America, Madison, WI VL - 70 IS - 4 SN - 0361-5995, 0361-5995 KW - United States KW - soils KW - granulometry KW - soil mechanics KW - Washington KW - grain size KW - statistical analysis KW - Palouse River KW - techniques KW - standardization KW - particle-size analysis KW - Alabama KW - size KW - hydrometers KW - North Carolina KW - Arizona KW - Colorado KW - SSSA methods KW - regression analysis KW - particles KW - ASTM D422 KW - 30:Engineering geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51565279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Science+Society+of+America+Journal&rft.atitle=Comparison+of+American+Society+of+Testing+Materials+and+Soil+Science+Society+of+America+hydrometer+methods+for+particle-size+analysis&rft.au=Keller%2C+Jason+M%3BGee%2C+G+W&rft.aulast=Keller&rft.aufirst=Jason&rft.date=2006-08-01&rft.volume=70&rft.issue=4&rft.spage=1094&rft.isbn=&rft.btitle=&rft.title=Soil+Science+Society+of+America+Journal&rft.issn=03615995&rft_id=info:doi/10.2135%2Fsssaj2005.0303N L2 - http://soil.scijournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 9 N1 - PubXState - WI N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - SSSJD4 N1 - SubjectsTermNotLitGenreText - Alabama; Arizona; ASTM D422; Colorado; grain size; granulometry; hydrometers; North Carolina; Palouse River; particle-size analysis; particles; regression analysis; size; soil mechanics; soils; SSSA methods; standardization; statistical analysis; techniques; United States; Washington DO - http://dx.doi.org/10.2135/sssaj2005.0303N ER - TY - JOUR T1 - Gas hydrate transect across northern Cascadia margin AN - 51540779; 2006-073348 JF - Eos, Transactions, American Geophysical Union AU - Riedel, Michael AU - Collett, Tim AU - Malone, Mitchell AU - Akiba, Fumio AU - Blanc-Valleron, Marie AU - Ellis, Michelle AU - Guerin, Gilles AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yowsuke AU - Holland, Melanie AU - Jackson, Peter AU - Kaneko, Masanori AU - Naka, Tsushima AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Phil AU - Malinverno, Alberto AU - Meyers, Greg AU - Palekar, Leena AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta AU - Trehu, Anne AU - Wang, Jiasheng AU - Wortmann, Uli AU - Yoshioka, Hideyoshi Y1 - 2006/08// PY - 2006 DA - August 2006 SP - 325 EP - 325, 330, 332 PB - American Geophysical Union, Washington, DC VL - 87 IS - 33 SN - 0096-3941, 0096-3941 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - NEPTUNE program KW - natural gas KW - geotraverses KW - aliphatic hydrocarbons KW - IODP Site U1327 KW - Cascadia Basin KW - petroleum KW - measurement-while-drilling KW - cores KW - temperature KW - bottom-simulating reflectors KW - vertical seismic profiles KW - turbidite KW - Northeast Pacific Time-Series Undersea Networked Experiment KW - Expedition 311 KW - East Pacific KW - continental margin KW - seismic profiles KW - methane KW - accretion KW - pressure KW - geophysical methods KW - Integrated Ocean Drilling Program KW - alkanes KW - high pressure KW - seismic methods KW - organic compounds KW - North Pacific KW - Pacific Ocean KW - low temperature KW - hydrocarbons KW - surveys KW - geophysical profiles KW - bathymetry KW - chlorinity KW - storage KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51540779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Gas+hydrate+transect+across+northern+Cascadia+margin&rft.au=Riedel%2C+Michael%3BCollett%2C+Tim%3BMalone%2C+Mitchell%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie%3BEllis%2C+Michelle%3BGuerin%2C+Gilles%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yowsuke%3BHolland%2C+Melanie%3BJackson%2C+Peter%3BKaneko%2C+Masanori%3BNaka%2C+Tsushima%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Phil%3BMalinverno%2C+Alberto%3BMeyers%2C+Greg%3BPalekar%2C+Leena%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta%3BTrehu%2C+Anne%3BWang%2C+Jiasheng%3BWortmann%2C+Uli%3BYoshioka%2C+Hideyoshi&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2006-08-01&rft.volume=87&rft.issue=33&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 5 N1 - PubXState - DC N1 - Document feature - illus. incl. sect., geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - accretion; aliphatic hydrocarbons; alkanes; bathymetry; bottom-simulating reflectors; Cascadia Basin; chlorinity; continental margin; cores; East Pacific; Expedition 311; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; geotraverses; high pressure; hydrocarbons; Integrated Ocean Drilling Program; IODP Site U1327; lithostratigraphy; low temperature; measurement-while-drilling; methane; natural gas; NEPTUNE program; North Pacific; Northeast Pacific; Northeast Pacific Time-Series Undersea Networked Experiment; organic compounds; Pacific Ocean; petroleum; pressure; seismic methods; seismic profiles; storage; surveys; temperature; turbidite; vertical seismic profiles ER - TY - JOUR T1 - Bond-valence methods for pK (sub a) prediction; II, Bond-valence, electrostatic, molecular geometry, and solvation effects AN - 51372504; 2007-106584 AB - In a previous contribution, we outlined a method for predicting (hydr)oxy-acid and oxide surface acidity constants based on three main factors: bond valence, Me-O bond ionicity, and molecular shape. Here, electrostatics calculations and ab initio molecular dynamics simulations are used to qualitatively show that Me-O bond ionicity controls the extent to which the electrostatic work of proton removal departs from ideality, bond valence controls the extent of solvation of individual functional groups, and bond valence and molecular shape control local dielectric response. These results are consistent with our model of acidity, but completely at odds with other methods of predicting acidity constants for use in multisite complexation models. In particular, our ab initio molecular dynamics simulations of solvated monomers clearly indicate that hydrogen bonding between (hydr)oxo-groups and water molecules adjusts to obey the valence sum rule, rather than maintaining a fixed valence based on the coordination of the oxygen atom as predicted by the standard MUSIC model. However, we also show how our method for pK (sub a) prediction could be improved using ab initio molecular dynamics simulations of solvated surfaces. JF - Geochimica et Cosmochimica Acta AU - Bickmore, Barry R AU - Rosso, Kevin M AU - Tadanier, Christopher J AU - Bylaska, Eric J AU - Doud, Darrin Y1 - 2006/08// PY - 2006 DA - August 2006 SP - 4057 EP - 4071 PB - Elsevier, New York, NY VL - 70 IS - 16 SN - 0016-7037, 0016-7037 KW - surface properties KW - acids KW - gaseous phase KW - complexing KW - prediction KW - phase transitions KW - bonding KW - protons KW - MUSIC KW - multisite complexation KW - ions KW - geometry KW - molecular structure KW - models KW - hydroxides KW - solvation KW - chemical reactions KW - dielectric properties KW - mathematical methods KW - oxides KW - valency KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51372504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Bond-valence+methods+for+pK+%28sub+a%29+prediction%3B+II%2C+Bond-valence%2C+electrostatic%2C+molecular+geometry%2C+and+solvation+effects&rft.au=Bickmore%2C+Barry+R%3BRosso%2C+Kevin+M%3BTadanier%2C+Christopher+J%3BBylaska%2C+Eric+J%3BDoud%2C+Darrin&rft.aulast=Bickmore&rft.aufirst=Barry&rft.date=2006-08-01&rft.volume=70&rft.issue=16&rft.spage=4057&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2006.06.006 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 63 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acids; bonding; chemical reactions; complexing; dielectric properties; gaseous phase; geochemistry; geometry; hydroxides; ions; mathematical methods; models; molecular structure; multisite complexation; MUSIC; oxides; phase transitions; prediction; protons; solvation; surface properties; valency DO - http://dx.doi.org/10.1016/j.gca.2006.06.006 ER - TY - JOUR T1 - Mineral formation during simulated leaks of Hanford waste tanks AN - 51242135; 2008-072188 AB - Highly-alkaline waste solutions have leaked from underground tanks at the US DOE Hanford Site, Washington, causing mineral dissolution and re-precipitation upon contact with subsurface sediments. The main mineral precipitation and transformation pathways were studied in solutions mimicking tank leak conditions at the US DOE Hanford Site. In batch experiments, Si-rich solutions, representing dissolved silicate minerals, were mixed with caustic tank simulants. The tank wastes encompass a large range of chemical compositions. The effect of the following factors on mineral transformations were investigated: temperature (22, 50 and 80 degrees C), concentration of NaOH (from 0 to 16M), 6 types of common inorganic anions in the tank supernatant, concentration of NaNO (sub 3) (the most abundant electrolyte in the tanks), and the Si/Al ratio in the starting solutions. Precipitates were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FT-IR) spectroscopy. A general mineral transformation pathway was observed: poorly crystalline aluminosilicate-->Linde Type A (LTA) zeolite-->cancrinite/sodalite. Cancrinite and sodalite were the two stable mineral phases. The concentration of NaOH and the type of anion played the determinative roles in mineral formation and transformation. Increasing NaOH concentration and temperature favored the formation of cancrinite and sodalite. Cancrinite formed in the presence of NO (sub 3) (super -) or SO (sub 4) (super 2-) ; sodalite formed in the presence of Cl (super -) or NO (sub 2) (super -) . The experiments indicate that (1) NaOH is a mineralization agent in the mineral transformation and the anions served as templates in the formation of cancrinite and sodalite by forming ion-pairs with Na (super +) and (2) cancrinite and sodalite with various morphologies and crystallinity should form in the contaminated sediments. JF - Applied Geochemistry AU - Deng, Youjun AU - Harsh, James B AU - Flury, Markus AU - Young, James S AU - Boyle, Jeffrey S Y1 - 2006/08// PY - 2006 DA - August 2006 SP - 1392 EP - 1409 PB - Elsevier, Oxford-New York-Beijing VL - 21 IS - 8 SN - 0883-2927, 0883-2927 KW - United States KW - silicates KW - X-ray diffraction data KW - waste water KW - ammonium ion KW - aqueous solutions KW - simulation KW - environmental analysis KW - seepage KW - infrared spectra KW - ground water KW - FTIR spectra KW - mineral composition KW - sediments KW - sodalite group KW - framework silicates KW - spectra KW - chemical composition KW - water pollution KW - geochemistry KW - chemical ratios KW - leaking underground storage tanks KW - Washington KW - sulfates KW - secondary minerals KW - pollutants KW - pollution KW - Hanford Site KW - hydrochemistry KW - alkalic composition KW - soil pollution KW - precipitation KW - sodalite KW - transformations KW - SEM data KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51242135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Mineral+formation+during+simulated+leaks+of+Hanford+waste+tanks&rft.au=Deng%2C+Youjun%3BHarsh%2C+James+B%3BFlury%2C+Markus%3BYoung%2C+James+S%3BBoyle%2C+Jeffrey+S&rft.aulast=Deng&rft.aufirst=Youjun&rft.date=2006-08-01&rft.volume=21&rft.issue=8&rft.spage=1392&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2006.05.002 L2 - http://www.sciencedirect.com/science/journal/08832927 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2008-01-01 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkalic composition; ammonium ion; aqueous solutions; chemical composition; chemical ratios; environmental analysis; framework silicates; FTIR spectra; geochemistry; ground water; Hanford Site; hydrochemistry; infrared spectra; leaking underground storage tanks; mineral composition; pollutants; pollution; precipitation; secondary minerals; sediments; seepage; SEM data; silicates; simulation; sodalite; sodalite group; soil pollution; spectra; sulfates; transformations; United States; Washington; waste water; water pollution; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.apgeochem.2006.05.002 ER - TY - JOUR T1 - The distribution of inclusions in a single large presolar silicon carbide grain AN - 51071050; 2008-086201 JF - Meteoritics & Planetary Science AU - Stadermann, F J AU - Stephan, T AU - Lea, A S AU - Floss, C AU - Anonymous Y1 - 2006/08// PY - 2006 DA - August 2006 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 41, Supplement SN - 1086-9379, 1086-9379 KW - stony meteorites KW - ion probe data KW - isotopes KW - mass spectra KW - carbonaceous chondrites KW - carbides KW - titanium carbide KW - stable isotopes KW - Murchison Meteorite KW - spatial distribution KW - meteorites KW - vanadium KW - silicon carbide KW - presolar grains KW - titanium KW - metals KW - inclusions KW - Auger spectroscopy KW - alloys KW - spectra KW - CM chondrites KW - chondrites KW - spectroscopy KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51071050?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+distribution+of+inclusions+in+a+single+large+presolar+silicon+carbide+grain&rft.au=Stadermann%2C+F+J%3BStephan%2C+T%3BLea%2C+A+S%3BFloss%2C+C%3BAnonymous&rft.aulast=Stadermann&rft.aufirst=F&rft.date=2006-08-01&rft.volume=41%2C+Supplement&rft.issue=&rft.spage=A166&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 69th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alloys; Auger spectroscopy; carbides; carbonaceous chondrites; chondrites; CM chondrites; inclusions; ion probe data; isotopes; mass spectra; metals; meteorites; Murchison Meteorite; presolar grains; silicon carbide; spatial distribution; spectra; spectroscopy; stable isotopes; stony meteorites; titanium; titanium carbide; vanadium ER - TY - JOUR T1 - Equilibration-Based Preconcentrating Minicolumn Sensors for Trace Level Monitoring of Radionuclides and Metal Ions in Water without Consumable Reagents AN - 20581283; 7361816 AB - A sensor technique is described that captures analyte species on a preconcentrating minicolumn containing a selective solid-phase sorbent. In this approach, the sample is pumped through the column until the sorbent phase is fully equilibrated with the sample concentration, and the exit concentration equals the inlet concentration. On-column detection of the captured analytes using radiometric and spectroscopic methods is demonstrated. In trace level detection applications, this sensor provides a steady-state signal that is proportional to sample analyte concentration and is reversible. The method is demonstrated for the detection of Tc-99 using anion-exchange beads mixed with scintillating beads and light detection, Sr-90 using SuperLig 620 beads mixed with scintillating beads and light detection; and hexavalent chromium detection using anion-exchange beads with spectroscopic detection. Theory has been developed to describe the signal at equilibration and to describe analyte uptake as a function of volume and concentration, using parameters and concepts from frontal chromatography. It is shown that experimental sensor behavior closely matches theoretical predictions and that effective sensors can be prepared using low plate number columns. This sensor modality has many desirable characteristics for in situ sensors for trace level contaminant long-term monitoring where the use of consumable reagents for sensor regeneration would be undesirable. Initial experiments in groundwater matrixes demonstrated the detection of Tc-99 at drinking water level standards (activity of 0.033 Bq/mL) and detection of hexavalent chromium to levels below drinking water standards of 50 ppb. JF - Analytical Chemistry (Washington) AU - Egorov, O B AU - O'Hara, MJ AU - Grate, J W AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA Y1 - 2006/08/01/ PY - 2006 DA - 2006 Aug 01 SP - 5480 EP - 5490 VL - 78 IS - 15 SN - 0003-2700, 0003-2700 KW - Pollution Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Reagents KW - Pollution monitoring KW - Sensors KW - Chromatographic techniques KW - INE, USA, Washington KW - Water quality KW - Trace Levels KW - Water levels KW - Sorbents KW - Drinking Water KW - metal ions KW - Coastal inlets KW - Ions KW - Pollution detection KW - regeneration KW - Chromium KW - Metal ions KW - Chromatography KW - Water quality standards KW - Radioisotopes KW - Standards KW - Groundwater KW - Monitoring KW - Drinking water KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 3060:Water treatment and distribution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20581283?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Equilibration-Based+Preconcentrating+Minicolumn+Sensors+for+Trace+Level+Monitoring+of+Radionuclides+and+Metal+Ions+in+Water+without+Consumable+Reagents&rft.au=Egorov%2C+O+B%3BO%27Hara%2C+MJ%3BGrate%2C+J+W&rft.aulast=Egorov&rft.aufirst=O&rft.date=2006-08-01&rft.volume=78&rft.issue=15&rft.spage=5480&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/10.1021%2Fac060355m LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-05-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Water levels; Pollution monitoring; Pollution detection; Metal ions; Chromium; Sensors; Chromatographic techniques; Radioisotopes; Coastal inlets; Water quality; Sorbents; regeneration; Chromatography; metal ions; Water quality standards; Drinking water; Ions; Reagents; Drinking Water; Standards; Monitoring; Groundwater; Trace Levels; INE, USA, Washington DO - http://dx.doi.org/10.1021/ac060355m ER - TY - JOUR T1 - Analysis of the Salmonella typhimurium Proteome through Environmental Response toward Infectious Conditions AN - 19363871; 7132380 AB - Salmonella enterica serovar Typhimurium (also known as Salmonella typhimurium) is a facultative intracellular pathogen that causes similar to 8,000 reported cases of acute gastroenteritis and diarrhea each year in the United States. Although many successful physiological, biochemical, and genetic approaches have been taken to determine the key virulence determinants encoded by this organism, the sheer number of uncharacterized reading frames observed within the S. enterica genome suggests that many more virulence factors remain to be discovered. We used a liquid chromatography-mass spectrometry-based "bottom-up" proteomic approach to generate a more complete picture of the gene products that S. typhimurium synthesizes under typical laboratory conditions as well as in culture media that are known to induce expression of virulence genes. When grown to logarithmic phase in rich medium, S. typhimurium is known to express many genes that are required for invasion of epithelial cells. Conversely stationary phase cultures of S. typhimurium express genes that are needed for both systemic infection and growth within infected macrophages. Lastly bacteria grown in an acidic, magnesium-depleted minimal medium (MgM) designed to mimic the phagocytic vacuole have been shown to up-regulate virulence gene expression. Initial comparisons of protein abundances from bacteria grown under each of these conditions indicated that the majority of proteins do not change significantly. However, we observed subsets of proteins whose expression was largely restricted to one of the three culture conditions. For example, cells grown in MgM had a higher abundance of Mg super(2+) transport proteins than found in other growth conditions. A second more virulent S. typhimurium strain (14028) was also cultured under these same growth conditions, and the results were directly compared with those obtained for strain LT2. This comparison offered a unique opportunity to contrast protein populations in these closely related bacteria. Among a number of proteins displaying a higher abundance in strain 14028 were the products of the pdu operon, which encodes enzymes required for propanediol utilization. These pdu operon proteins were validated in culture and during macrophage infection. Our work provides further support for earlier observations that suggest pdu gene expression contributes to S. typhimurium pathogenesis. JF - Molecular and Cellular Proteomics AU - Adkins, Joshua N AU - Mottaz, Heather M AU - Norbeck, Angela D AU - Gustin, Jean K AU - Rue, Joanne AU - Clauss, Therese RW AU - Purvine, Samuel O AU - Rodland, Karin D AU - Heffron, Fred AU - Smith, Richard D AD - Biological Science Division and Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352 and Department of Molecular Microbiology and Immunology, Oregon Health and Sciences University, Portland, Oregon 97239 Y1 - 2006/08// PY - 2006 DA - Aug 2006 SP - 1450 EP - 1461 PB - American Society for Biochemistry and Molecular Biology, 9650 Rockville Pike Bethesda MD 20814-3996 USA, [mailto:asbmb@asbmb.faseb.org], [URL:http://www.asbmb.org/] VL - 5 IS - 8 SN - 1535-9476, 1535-9476 KW - Microbiology Abstracts B: Bacteriology KW - Macrophages KW - Genomes KW - Epithelial cells KW - Protein transport KW - Diarrhea KW - virulence factors KW - Growth conditions KW - Disseminated infection KW - Enzymes KW - Cell culture KW - Pathogens KW - Salmonella typhimurium KW - Gene expression KW - Virulence KW - stationary phase KW - Salmonella enterica KW - Vacuoles KW - proteomics KW - Magnesium KW - Gastroenteritis KW - Operons KW - Media (culture) KW - J 02350:Immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19363871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+and+Cellular+Proteomics&rft.atitle=Analysis+of+the+Salmonella+typhimurium+Proteome+through+Environmental+Response+toward+Infectious+Conditions&rft.au=Adkins%2C+Joshua+N%3BMottaz%2C+Heather+M%3BNorbeck%2C+Angela+D%3BGustin%2C+Jean+K%3BRue%2C+Joanne%3BClauss%2C+Therese+RW%3BPurvine%2C+Samuel+O%3BRodland%2C+Karin+D%3BHeffron%2C+Fred%3BSmith%2C+Richard+D&rft.aulast=Adkins&rft.aufirst=Joshua&rft.date=2006-08-01&rft.volume=5&rft.issue=8&rft.spage=1450&rft.isbn=&rft.btitle=&rft.title=Molecular+and+Cellular+Proteomics&rft.issn=15359476&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Genomes; Macrophages; Protein transport; Epithelial cells; Diarrhea; virulence factors; Growth conditions; Disseminated infection; Enzymes; Cell culture; Pathogens; stationary phase; Virulence; Gene expression; Vacuoles; proteomics; Operons; Gastroenteritis; Magnesium; Media (culture); Salmonella enterica; Salmonella typhimurium ER - TY - JOUR T1 - Solution Structure of the Conserved Hypothetical Protein Rv2302 from Mycobacterium tuberculosis AN - 19362640; 7131625 AB - The Mycobacterium tuberculosis protein Rv2302 (80 residues; molecular mass of 8.6 kDa) has been characterized using nuclear magnetic resonance (NMR) and circular dichroism (CD) spectroscopy. While the biochemical function of Rv2302 is still unknown, recent microarray analyses show that Rv2302 is upregulated in response to starvation and overexpression of heat shock proteins and, consequently, may play a role in the biochemical processes associated with these events. Rv2302 is a monomer in solution as shown by size exclusion chromatography and NMR spectroscopy. CD spectroscopy suggests that Rv2302 partially unfolds upon heating and that this unfolding is reversible. Using NMR-based methods, the solution structure of Rv2302 was determined. The protein contains a five-strand, antiparallel {szligbeta}-sheet core with one C-terminal alpha -helix (A61 to A75) nestled against its side. Hydrophobic interactions between residues in the alpha -helix and {szligbeta}-strands 3 and 4 hold the alpha -helix near the {szligbeta}-sheet core. The electrostatic potential on the solvent-accessible surface is primarily negative with the exception of a positive arginine pocket composed of residues R18, R70, and R74. Steady-state { super(1)H}- super(15)N heteronuclear nuclear Overhauser effects indicate that the protein's core is rigid on the picosecond timescale. The absence of amide cross-peaks for residues G13 to H19 in the super(1)H- super(15)N heteronuclear single quantum correlation spectrum suggests that this region, a loop between {szligbeta}-strands 1 and 2, undergoes motion on the millisecond to microsecond timescale. Dali searches using the structure closest to the average structure do not identify any high similarities to any other known protein structure, suggesting that the structure of Rv2302 may represent a novel protein fold. JF - Journal of Bacteriology AU - Buchko, Garry W AU - Kim, Chang-Yub AU - Terwilliger, Thomas C AU - Kennedy, Michael A AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington. Biosciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico Y1 - 2006/08// PY - 2006 DA - Aug 2006 SP - 5993 EP - 6001 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 188 IS - 16 SN - 0021-9193, 0021-9193 KW - Microbiology Abstracts B: Bacteriology KW - Starvation KW - Heat shock proteins KW - Chromatography KW - Arginine KW - Electrostatic properties KW - Hydrophobicity KW - Spectroscopy KW - Monomers KW - Protein structure KW - Protein folding KW - Magnetic resonance spectroscopy KW - C.D. KW - N.M.R. KW - Nuclear Overhauser effect KW - amides KW - Mycobacterium tuberculosis KW - J 02330:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19362640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Solution+Structure+of+the+Conserved+Hypothetical+Protein+Rv2302+from+Mycobacterium+tuberculosis&rft.au=Buchko%2C+Garry+W%3BKim%2C+Chang-Yub%3BTerwilliger%2C+Thomas+C%3BKennedy%2C+Michael+A&rft.aulast=Buchko&rft.aufirst=Garry&rft.date=2006-08-01&rft.volume=188&rft.issue=16&rft.spage=5993&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Starvation; Heat shock proteins; Arginine; Chromatography; Hydrophobicity; Electrostatic properties; Spectroscopy; Protein structure; Monomers; Protein folding; C.D.; Magnetic resonance spectroscopy; N.M.R.; Nuclear Overhauser effect; amides; Mycobacterium tuberculosis ER - TY - JOUR T1 - Assessing Spatial, Temporal, and Analytical Variation of Groundwater Chemistry in a Large Nuclear Complex, USA AN - 19319627; 7044815 AB - Statistical analyses were applied at the Hanford Site, USA, to assess groundwater contamination problems that included (1) determining local backgrounds to ascertain whether a facility is affecting the groundwater quality and (2) determining a 'pre-Hanford' groundwater background to allow formulation of background-based cleanup standards. The primary purpose of this paper is to extend the random effects models for (1) assessing the spatial, temporal, and analytical variability of groundwater background measurements; (2) demonstrating that the usual variance estimate s super(2), which ignores the variance components, is a biased estimator; (3) providing formulas for calculating the amount of bias; and (4) recommending monitoring strategies to reduce the uncertainty in estimating the average background concentrations. A case study is provided. Results indicate that (1) without considering spatial and temporal variability, there is a high probability of false positives, resulting in unnecessary remediation and/or monitoring expenses; (2) the most effective way to reduce the uncertainty in estimating the average background, and enhance the power of the statistical tests in general, is to increase the number of background wells; and (3) background for a specific constituent should be considered as a statistical distribution, not as a single value or threshold. The methods and the related analysis of variance tables discussed in this paper can be used as diagnostic tools in documenting the extent of inherent spatial and/or temporal variation and to help select an appropriate statistical method for testing purposes. JF - Environmental Monitoring and Assessment AU - Chou, Charissa J AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN:K6-75, Richland, Washington, U.S.A., charissa.chou@pnl.gov Y1 - 2006/08// PY - 2006 DA - Aug 2006 SP - 571 EP - 598 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 119 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Variability KW - Analysis of Variance KW - Groundwater hydrology KW - Bioremediation KW - Groundwater quality KW - Statistical analysis KW - Groundwater Pollution KW - Assessments KW - Spatial variability KW - Nuclear Energy KW - Environmental monitoring KW - Estimating KW - Case Studies KW - USA, Washington, Hanford Site KW - case studies KW - USA KW - Groundwater pollution KW - Monitoring KW - Test Wells KW - AQ 00007:Industrial Effluents KW - P 8000:RADIATION KW - M2 556.38:Groundwater Basins (556.38) KW - SW 3010:Identification of pollutants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19319627?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Assessing+Spatial%2C+Temporal%2C+and+Analytical+Variation+of+Groundwater+Chemistry+in+a+Large+Nuclear+Complex%2C+USA&rft.au=Chou%2C+Charissa+J&rft.aulast=Chou&rft.aufirst=Charissa&rft.date=2006-08-01&rft.volume=119&rft.issue=1-3&rft.spage=571&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/10.1007%2Fs10661-005-9044-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Groundwater hydrology; Groundwater quality; Statistical analysis; Groundwater pollution; Spatial variability; case studies; Bioremediation; Analysis of Variance; Variability; Assessments; Case Studies; Estimating; Groundwater Pollution; Monitoring; Test Wells; Nuclear Energy; USA; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1007/s10661-005-9044-1 ER - TY - JOUR T1 - Confirmation of the expression of a large set of conserved hypothetical proteins in Shewanella oneidensis MR-1 AN - 17261520; 6999758 AB - High-throughput ''omic'' technologies have allowed for a relatively rapid, yet comprehensive analysis of the global expression patterns within an organism in response to perturbations. In the current study, 9503 different tryptic peptides were identified with high confidence from capillary liquid chromatography-mass spectrometry analysis of 26 chemostat cultures of Shewanella oneidensis MR-1 under various conditions. Using at least one distinctive and a total of two total peptide identifications per protein, we detected the expression of 758 conserved hypothetical proteins. This included 359 such proteins previously described [Kolker, E., Picone, A.F., Galperin, M.Y., Romine, M.F., Higdon, R., Makarova, K.S., Kolker, N., Anderson, G.A., Qiu, X., Auberry, K.J., Babnigg, G., Beliaev, A.S., Edlefsen, P., Elias, D.A., Gorby, Y.A., Holzman, T., Klappenbach, J.A., Konstantinidis, K.T., Land, M.L., Lipton, M.S., McCue, L.A., Monroe, M., Pasa-Tolic, L., Pinchuk, G., Purvine, S., Serres, M.H., Tsapin, S., Zakrajsek, B.A., Zhu, W., Zhou, J., Larimer, F.W., Lawrence, C.E., Riley, M., Collart, F.R., Yates, J.R., III, Smith, R.D., Giometti, C.S., Nealson, K.H., Fredrickson, J.K., Tiedje, J.M., 2005. Global profiling of Shewanella oneidensis MR-1: expression of hypothetical genes and improved functional annotations. Proc Natl Acad Sci U S A 102, 2099-2104] with an additional 399 reported herein for the first time. The latter 399 proteins ranged from 5.3 to 208.3 kDa, with 44 being of 100 amino acid residues or less. Using a combination of information including peptide detection in cells grown under specific culture conditions and predictive algorithms such as PSORT and PSORT-B, possible/plausible functions are proposed for some conserved hypothetical proteins. Such proteins were found not only to be expressed, but 19 were only expressed under certain culturing conditions, thereby providing insight into potential functions. These findings also impact the genomic annotation for S. oneidensis MR-1 by confirming that these genes code for expressed proteins. Our results indicate that 399 proteins can now be upgraded from ''conserved hypothetical protein'' to ''expressed protein in Shewanella,'' 19 of which appeared to be expressed under specific culture conditions. JF - Journal of Microbiological Methods AU - Elias, DA AU - Monroe, ME AU - Smith, R D AU - Fredrickson, J K AU - Lipton AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN: K8-98, Richland, WA 99352, USA, Mary.Lipton@pnl.gov Y1 - 2006/08// PY - 2006 DA - Aug 2006 SP - 223 EP - 233 VL - 66 IS - 2 SN - 0167-7012, 0167-7012 KW - Microbiology Abstracts B: Bacteriology KW - Continuous culture KW - Amino acids KW - Shewanella oneidensis KW - Algorithms KW - Cell culture KW - Tryptic peptides KW - genomics KW - Spectrometry KW - J 02300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17261520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microbiological+Methods&rft.atitle=Confirmation+of+the+expression+of+a+large+set+of+conserved+hypothetical+proteins+in+Shewanella+oneidensis+MR-1&rft.au=Elias%2C+DA%3BMonroe%2C+ME%3BSmith%2C+R+D%3BFredrickson%2C+J+K%3BLipton&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2001-08-01&rft.volume=24&rft.issue=8&rft.spage=887&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-09-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Amino acids; Continuous culture; Algorithms; Tryptic peptides; Cell culture; genomics; Spectrometry; Shewanella oneidensis DO - http://dx.doi.org/10.1016/j.mimet.2005.11.009 ER - TY - JOUR T1 - Loss of fine particle ammonium from denuded nylon filters AN - 17246220; 6976144 AB - Ammonium is an important constituent of fine particulate mass in the atmosphere, but can be difficult to quantify due to possible sampling artifacts. Losses of semivolatile species such as NH sub(4)NO sub(3) can be particularly problematic. In order to evaluate ammonium losses from aerosol particles collected on filters, a series of field experiments was conducted using denuded nylon and Teflon filters at Bondville, IL (February 2003), San Gorgonio, CA (April 2003 and July 2004), Grand Canyon NP, AZ (May, 2003), Brigantine, NJ (November 2003), and Great Smoky Mountains National Park (NP), TN (July-August 2004). Samples were collected over 24 h periods. Losses from denuded nylon filters ranged from 10% (monthly average) in Bondville, IL to 28% in San Gorgonio, CA in summer. Losses on individual sample days ranged from 1% to 65%. Losses tended to increase with increasing diurnal temperature and relative humidity changes and with the fraction of ambient total N(-III) (particulate NH sub(4) super(+)+gaseous NH sub(3)) present as gaseous NH sub(3). The amount of ammonium lost at most sites could be explained by the amount of NH sub(4)NO sub(3) present in the sampled aerosol. Ammonium losses at Great Smoky Mountains NP, however, significantly exceeded the amount of NH sub(4)NO sub(3) collected. Ammoniated organic salts are suggested as additional important contributors to observed ammonium loss at this location. JF - Atmospheric Environment AU - Yu, Xiao-Ying AU - Lee, Taehyoung AU - Ayres, Benjamin AU - Kreidenweis, Sonia M AU - Malm, William AU - Collett Jr, Jeffrey L AD - Atmospheric and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA, collett@lamar.colostate.edu Y1 - 2006/08// PY - 2006 DA - Aug 2006 SP - 4797 EP - 4807 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 40 IS - 25 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Ammonium nitrate KW - Ammonia KW - PM sub(2.5) KW - Nylon filter KW - Teflon filter KW - Annular denuder KW - IMPROVE KW - Relative humidity KW - USA, Arizona, Grand Canyon KW - Ammonium KW - Aerosols KW - USA, New Jersey KW - USA, Illinois KW - Aerosol particles KW - USA, Great Smoky Mountains Natl. Park KW - Temperature KW - Humidity KW - Particulates KW - Diurnal temperature KW - Filters KW - Mountains KW - Salts KW - USA, California KW - Ammonium particles KW - Seasonal variations KW - Volatile organic compounds KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - M2 551.508.951:Instruments for measuring air pollution (551.508.951) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17246220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Loss+of+fine+particle+ammonium+from+denuded+nylon+filters&rft.au=Yu%2C+Xiao-Ying%3BLee%2C+Taehyoung%3BAyres%2C+Benjamin%3BKreidenweis%2C+Sonia+M%3BMalm%2C+William%3BCollett+Jr%2C+Jeffrey+L&rft.aulast=Yu&rft.aufirst=Xiao-Ying&rft.date=2006-08-01&rft.volume=40&rft.issue=25&rft.spage=4797&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2006.03.061 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Relative humidity; Aerosol particles; Ammonium particles; Diurnal temperature; Mountains; Filters; Salts; Ammonium; Aerosols; Temperature; Humidity; Particulates; Seasonal variations; Volatile organic compounds; USA, Arizona, Grand Canyon; USA, New Jersey; USA, Illinois; USA, Great Smoky Mountains Natl. Park; USA, California DO - http://dx.doi.org/10.1016/j.atmosenv.2006.03.061 ER - TY - JOUR T1 - Imaging of Bacterial External Polymeric Substances by Methods of SEM AN - 1315611833; 14402572 AB - Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 - August 3, 2005 JF - Microscopy and Microanalysis AU - Arey, B AU - Laskin, A AU - Dohnalkova, A AD - Pacific Northwest National Laboratory Y1 - 2006/08// PY - 2006 DA - Aug 2006 SP - 1504 EP - 1505 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU UK VL - 12 IS - S02 SN - 1431-9276, 1431-9276 KW - Microbiology Abstracts B: Bacteriology KW - Microscopy KW - imaging KW - Bacteria KW - J 02300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1315611833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microscopy+and+Microanalysis&rft.atitle=Imaging+of+Bacterial+External+Polymeric+Substances+by+Methods+of+SEM&rft.au=Arey%2C+B%3BLaskin%2C+A%3BDohnalkova%2C+A&rft.aulast=Arey&rft.aufirst=B&rft.date=2006-08-01&rft.volume=12&rft.issue=S02&rft.spage=1504&rft.isbn=&rft.btitle=&rft.title=Microscopy+and+Microanalysis&rft.issn=14319276&rft_id=info:doi/10.1017%2FS1431927606066463 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-03-01 N1 - Last updated - 2013-03-22 N1 - SubjectsTermNotLitGenreText - Microscopy; imaging; Bacteria DO - http://dx.doi.org/10.1017/S1431927606066463 ER - TY - JOUR T1 - Electrically conductive bacterial nanowires produced by Shewanella oneidensis strain MR-1 and other microorganisms. AN - 68678058; 16849424 AB - Shewanella oneidensis MR-1 produced electrically conductive pilus-like appendages called bacterial nanowires in direct response to electron-acceptor limitation. Mutants deficient in genes for c-type decaheme cytochromes MtrC and OmcA, and those that lacked a functional Type II secretion pathway displayed nanowires that were poorly conductive. These mutants were also deficient in their ability to reduce hydrous ferric oxide and in their ability to generate current in a microbial fuel cell. Nanowires produced by the oxygenic phototrophic cyanobacterium Synechocystis PCC6803 and the thermophilic, fermentative bacterium Pelotomaculum thermopropionicum reveal that electrically conductive appendages are not exclusive to dissimilatory metal-reducing bacteria and may, in fact, represent a common bacterial strategy for efficient electron transfer and energy distribution. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Gorby, Yuri A AU - Yanina, Svetlana AU - McLean, Jeffrey S AU - Rosso, Kevin M AU - Moyles, Dianne AU - Dohnalkova, Alice AU - Beveridge, Terry J AU - Chang, In Seop AU - Kim, Byung Hong AU - Kim, Kyung Shik AU - Culley, David E AU - Reed, Samantha B AU - Romine, Margaret F AU - Saffarini, Daad A AU - Hill, Eric A AU - Shi, Liang AU - Elias, Dwayne A AU - Kennedy, David W AU - Pinchuk, Grigoriy AU - Watanabe, Kazuya AU - Ishii, Shun'ichi AU - Logan, Bruce AU - Nealson, Kenneth H AU - Fredrickson, Jim K AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. yuri.gorby@pnl.gov Y1 - 2006/07/25/ PY - 2006 DA - 2006 Jul 25 SP - 11358 EP - 11363 VL - 103 IS - 30 SN - 0027-8424, 0027-8424 KW - Bacterial Outer Membrane Proteins KW - 0 KW - Bacterial Proteins KW - Cytochrome c Group KW - Ferric Compounds KW - omc A protein, Shewanella putrefaciens KW - ferric oxide KW - 1K09F3G675 KW - ferric oxyhydroxide KW - 87PZU03K0K KW - MtrC protein, Shewanella KW - EC 1.- KW - Index Medicus KW - Cytochrome c Group -- genetics KW - Microscopy, Electron, Transmission KW - Bacterial Proteins -- genetics KW - Electrons KW - Synechocystis -- metabolism KW - Ferric Compounds -- chemistry KW - Ferric Compounds -- metabolism KW - Mutation KW - Nanotechnology KW - Mutagenesis KW - Microscopy, Electron, Scanning KW - Shewanella -- metabolism KW - Shewanella -- ultrastructure KW - Electric Conductivity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68678058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Electrically+conductive+bacterial+nanowires+produced+by+Shewanella+oneidensis+strain+MR-1+and+other+microorganisms.&rft.au=Gorby%2C+Yuri+A%3BYanina%2C+Svetlana%3BMcLean%2C+Jeffrey+S%3BRosso%2C+Kevin+M%3BMoyles%2C+Dianne%3BDohnalkova%2C+Alice%3BBeveridge%2C+Terry+J%3BChang%2C+In+Seop%3BKim%2C+Byung+Hong%3BKim%2C+Kyung+Shik%3BCulley%2C+David+E%3BReed%2C+Samantha+B%3BRomine%2C+Margaret+F%3BSaffarini%2C+Daad+A%3BHill%2C+Eric+A%3BShi%2C+Liang%3BElias%2C+Dwayne+A%3BKennedy%2C+David+W%3BPinchuk%2C+Grigoriy%3BWatanabe%2C+Kazuya%3BIshii%2C+Shun%27ichi%3BLogan%2C+Bruce%3BNealson%2C+Kenneth+H%3BFredrickson%2C+Jim+K&rft.aulast=Gorby&rft.aufirst=Yuri&rft.date=2006-07-25&rft.volume=103&rft.issue=30&rft.spage=11358&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-08-29 N1 - Date created - 2006-07-26 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Microbiology. 2000 Mar;146 ( Pt 3):551-71 [10746759] J Bacteriol. 2006 Jul;188(13):4705-14 [16788180] Mol Microbiol. 2001 Feb;39(3):722-30 [11169112] J Bacteriol. 2002 Jan;184(1):142-51 [11741854] Plant Physiol. 2002 Nov;130(3):1201-12 [12427987] Antonie Van Leeuwenhoek. 2002 Aug;81(1-4):215-22 [12448720] J Bacteriol. 2003 Apr;185(7):2096-103 [12644478] J Bacteriol. 2003 May;185(9):2749-58 [12700254] Appl Environ Microbiol. 2003 May;69(5):2800-9 [12732551] J Bacteriol. 2003 Jun;185(12):3668-71 [12775705] Lett Appl Microbiol. 2003;37(1):21-5 [12803550] Lett Appl Microbiol. 2003;37(3):254-8 [12904229] Gene. 1989 Apr 15;77(1):51-9 [2744487] Mol Microbiol. 1991 Jun;5(6):1447-57 [1686293] Annu Rev Microbiol. 1994;48:311-43 [7826009] J Bacteriol. 1997 Jan;179(2):538-40 [8990308] J Bacteriol. 1997 Oct;179(20):6228-37 [9335267] J Bacteriol. 1998 Dec;180(23):6292-7 [9829939] Appl Environ Microbiol. 1999 Mar;65(3):1214-21 [10049886] J Bacteriol. 2004 Dec;186(24):8385-400 [15576789] Nature. 2005 Jun 23;435(7045):1098-101 [15973408] Appl Environ Microbiol. 2005 Aug;71(8):4935-7 [16085900] Appl Environ Microbiol. 2005 Dec;71(12):7838-45 [16332758] Nature. 2000 May 4;405(6782):94-7 [10811225] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Endogenously nitrated proteins in mouse brain: links to neurodegenerative disease. AN - 68573286; 16800626 AB - Increased abundance of nitrotyrosine modifications of proteins have been documented in multiple pathologies in a variety of tissue types and play a role in the redox regulation of normal metabolism. To identify proteins sensitive to nitrating conditions in vivo, a comprehensive proteomic data set identifying 7792 proteins from a whole mouse brain, generated by LC/LC-MS/MS analyses, was used to identify nitrated proteins. This analysis resulted in the identification of 31 unique nitrotyrosine sites within 29 different proteins. More than half of the nitrated proteins that have been identified are involved in Parkinson's disease, Alzheimer's disease, or other neurodegenerative disorders. Similarly, nitrotyrosine immunoblots of whole brain homogenates show that treatment of mice with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), an experimental model of Parkinson's disease, induces an increased level of nitration of the same protein bands observed to be nitrated in brains of untreated animals. Comparing sequences and available high-resolution structures around nitrated tyrosines with those of unmodified sites indicates a preference of nitration in vivo for surface accessible tyrosines in loops, a characteristic consistent with peroxynitrite-induced tyrosine modification. In addition, most sequences contain cysteines or methionines proximal to nitrotyrosines, contrary to suggestions that these amino acid side chains prevent tyrosine nitration. More striking is the presence of a positively charged moiety near the sites of nitration, which is not observed for non-nitrated tyrosines. Together, these observations suggest a predictive tool of functionally important sites of nitration and that cellular nitrating conditions play a role in neurodegenerative changes in the brain. JF - Biochemistry AU - Sacksteder, Colette A AU - Qian, Wei-Jun AU - Knyushko, Tatyana V AU - Wang, Haixing AU - Chin, Mark H AU - Lacan, Goran AU - Melega, William P AU - Camp, David G AU - Smith, Richard D AU - Smith, Desmond J AU - Squier, Thomas C AU - Bigelow, Diana J AD - Cell Biology and Biochemistry Group, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2006/07/04/ PY - 2006 DA - 2006 Jul 04 SP - 8009 EP - 8022 VL - 45 IS - 26 SN - 0006-2960, 0006-2960 KW - Nerve Tissue Proteins KW - 0 KW - Nitrates KW - Peptide Fragments KW - Proteome KW - 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine KW - 9P21XSP91P KW - Index Medicus KW - Animals KW - Mass Spectrometry KW - Models, Molecular KW - Nitrates -- metabolism KW - Amino Acid Sequence KW - Mice KW - Capillary Action KW - Chromatography, Liquid KW - Mice, Inbred C57BL KW - Molecular Sequence Data KW - Protein Conformation KW - Neurodegenerative Diseases -- metabolism KW - Nerve Tissue Proteins -- metabolism KW - Brain -- metabolism KW - Nerve Tissue Proteins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68573286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Endogenously+nitrated+proteins+in+mouse+brain%3A+links+to+neurodegenerative+disease.&rft.au=Sacksteder%2C+Colette+A%3BQian%2C+Wei-Jun%3BKnyushko%2C+Tatyana+V%3BWang%2C+Haixing%3BChin%2C+Mark+H%3BLacan%2C+Goran%3BMelega%2C+William+P%3BCamp%2C+David+G%3BSmith%2C+Richard+D%3BSmith%2C+Desmond+J%3BSquier%2C+Thomas+C%3BBigelow%2C+Diana+J&rft.aulast=Sacksteder&rft.aufirst=Colette&rft.date=2006-07-04&rft.volume=45&rft.issue=26&rft.spage=8009&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-08-23 N1 - Date created - 2006-06-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Reductive biotransformation of Fe in shale-limestone saprolite containing Fe(III) oxides and Fe(II)/Fe(III) phyllosilicates AN - 51275473; 2008-044093 AB - A <2.0-mm fraction of a mineralogically complex subsurface sediment containing goethite and Fe(II)/Fe(III) phyllosilicates was incubated with Shewanella putrefaciens (strain CN32) and lactate at circumneutral pH under anoxic conditions to investigate electron acceptor preference and the nature of the resulting biogenic Fe(II) fraction. Anthraquinone-2,6-disulfonate (AQDS), an electron shuttle, was included in select treatments to enhance bioreduction and subsequent biomineralization. The sediment was highly aggregated and contained two distinct clast populations: (i) a highly weathered one with "sponge-like" internal porosity, large mineral crystallites, and Fe-containing micas, and (ii) a dense, compact one with fine-textured Fe-containing illite and nano-sized goethite, as revealed by various forms of electron microscopic analyses. Approximately 10-15% of the Fe(III) (sub TOT) was bioreduced by CN32 over 60 d in media without AQDS, whereas 24% and 35% of the Fe(III) (sub TOT) was bioreduced by CN32 after 40 and 95 d in media with AQDS. Little or no Fe (super 2+) , Mn, Si, Al, and Mg were evident in aqueous filtrates after reductive incubation. Mossbauer measurements on the bioreduced sediments indicated that both goethite and phyllosilicate Fe(III) were partly reduced without bacterial preference. Goethite was more extensively reduced in the presence of AQDS whereas phyllosilicate Fe(III) reduction was not influenced by AQDS. Biogenic Fe(II) resulting from phyllosilicate Fe(III) reduction remained in a layer-silicate environment that displayed enhanced solubility in weak acid. The mineralogic nature of the goethite biotransformation product was not determined. Chemical and cryogenic Mossbauer measurements, however, indicated that the transformation product was not siderite, green rust, magnetite, Fe(OH) (sub 2) , or Fe(II) adsorbed on phyllosilicate or bacterial surfaces. Several lines of evidence suggested that biogenic Fe(II) existed as surface associated phase on the residual goethite, and/or as a Fe(II)-Al coprecipitate. Sediment aggregation and mineral physical and/or chemical factors were demonstrated to play a major role on the nature and location of the biotransformation reaction and its products. JF - Geochimica et Cosmochimica Acta AU - Kukkadapu, Ravi K AU - Zachara, John M AU - Fredrickson, James K AU - McKinley, James P AU - Kennedy, David W AU - Smith, Steven C AU - Dong, Hailiang Y1 - 2006/07// PY - 2006 DA - July 2006 SP - 3662 EP - 3676 PB - Elsevier, New York, NY VL - 70 IS - 14 SN - 0016-7037, 0016-7037 KW - silicates KW - limestone KW - iron oxides KW - X-ray diffraction data KW - Shewanella KW - electron probe data KW - spatial distribution KW - sedimentary rocks KW - mineral composition KW - chemical reactions KW - oxides KW - spectra KW - reduction KW - chemical composition KW - geochemistry KW - Mossbauer spectra KW - shale KW - TEM data KW - saprolite KW - biogenic processes KW - bacteria KW - sheet silicates KW - transformations KW - carbonate rocks KW - clastic rocks KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51275473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reductive+biotransformation+of+Fe+in+shale-limestone+saprolite+containing+Fe%28III%29+oxides+and+Fe%28II%29%2FFe%28III%29+phyllosilicates&rft.au=Kukkadapu%2C+Ravi+K%3BZachara%2C+John+M%3BFredrickson%2C+James+K%3BMcKinley%2C+James+P%3BKennedy%2C+David+W%3BSmith%2C+Steven+C%3BDong%2C+Hailiang&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2006-07-01&rft.volume=70&rft.issue=14&rft.spage=3662&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2006.05.004 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2008-01-01 N1 - Number of references - 64 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; carbonate rocks; chemical composition; chemical reactions; clastic rocks; electron probe data; geochemistry; iron oxides; limestone; mineral composition; Mossbauer spectra; oxides; reduction; saprolite; sedimentary rocks; shale; sheet silicates; Shewanella; silicates; spatial distribution; spectra; TEM data; transformations; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2006.05.004 ER - TY - JOUR T1 - A combined FTIR and TPD study on the bulk and surface dehydroxylation and decarbonation of synthetic goethite AN - 51088103; 2008-044090 AB - The thermal dehydroxylation of a goethite-carbonate solid solution was studied with combined Fourier-transform infrared (FTIR)-Temperature programmed desorption (TPD) experiments. The TPD data revealed dehydroxylation peaks involving the intrinsic dehydroxylation of goethite at 560 K and a low temperature peak at 485 K which was shown to be associated to the release of non-stoichiometric water from the goethite bulk and surface. The FTIR and the TPD data of goethite in the absence of adsorbed carbonate species revealed the presence of adventitious carbonate mostly sequestered in the goethite bulk. The release of carbonate was however not only related to the dehydration of goethite but also from the crystallization of hematite at temperatures exceeding 600 K. The relative abundance of surface hydroxyls was shown to change systematically upon goethite dehydroxylation with a preferential stripping of singly-coordinated_OH sites followed by a dramatic change in the dominance of the different surface hydroxyls upon the formation of hematite. JF - Geochimica et Cosmochimica Acta AU - Boily, Jean Francois AU - Szanyi, Janos AU - Felmy, Andrew R Y1 - 2006/07// PY - 2006 DA - July 2006 SP - 3613 EP - 3624 PB - Elsevier, New York, NY VL - 70 IS - 14 SN - 0016-7037, 0016-7037 KW - surface properties KW - desorption KW - decarbonation KW - goethite KW - solid solution KW - dehydroxylation KW - temperature programmed desorption KW - temperature KW - infrared spectra KW - molecular structure KW - FTIR spectra KW - chemical reactions KW - hematite KW - mathematical methods KW - oxides KW - spectra KW - crystal chemistry KW - chemical composition KW - stoichiometry KW - geochemistry KW - carbonates KW - synthetic materials KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51088103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=A+combined+FTIR+and+TPD+study+on+the+bulk+and+surface+dehydroxylation+and+decarbonation+of+synthetic+goethite&rft.au=Boily%2C+Jean+Francois%3BSzanyi%2C+Janos%3BFelmy%2C+Andrew+R&rft.aulast=Boily&rft.aufirst=Jean&rft.date=2006-07-01&rft.volume=70&rft.issue=14&rft.spage=3613&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2006.05.013 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2008-01-01 N1 - Number of references - 62 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - carbonates; chemical composition; chemical reactions; crystal chemistry; decarbonation; dehydroxylation; desorption; FTIR spectra; geochemistry; goethite; hematite; infrared spectra; mathematical methods; molecular structure; oxides; solid solution; spectra; stoichiometry; surface properties; synthetic materials; temperature; temperature programmed desorption DO - http://dx.doi.org/10.1016/j.gca.2006.05.013 ER - TY - JOUR T1 - Suspension Array Analysis of 16S rRNA from Fe- and SO sub(4) super(2)-Reducing Bacteria in Uranium-Contaminated Sediments Undergoing Bioremediation AN - 20721916; 6992605 AB - A 16S rRNA-targeted tunable bead array was developed and used in a retrospective analysis of metal- and sulfate-reducing bacteria in contaminated subsurface sediments undergoing in situ U(VI) bioremediation. Total RNA was extracted from subsurface sediments and interrogated directly, without a PCR step. Bead array validation studies with total RNA derived from 24 isolates indicated that the behavior and response of the 16S rRNA-targeted oligonucleotide probes could not be predicted based on the primary nucleic acid sequence. Likewise, signal intensity (absolute or normalized) could not be used to assess the abundance of one organism (or rRNA) relative to the abundance of another organism (or rRNA). Nevertheless, the microbial community structure and dynamics through time and space and as measured by the rRNA-targeted bead array were consistent with previous data acquired at the site, where indigenous sulfate- and iron-reducing bacteria and near neighbors of Desulfotomaculum were the organisms that were most responsive to a change in injected acetate concentrations. Bead array data were best interpreted by analyzing the relative changes in the probe responses for spatially and temporally related samples and by considering only the response of one probe to itself in relation to a background (reference) environmental sample. By limiting the interpretation of the data in this manner and placing it in the context of supporting geochemical and microbiological analyses, we concluded that ecologically relevant and meaningful information can be derived from direct microarray analysis of rRNA in uncharacterized environmental samples, even with the current analytical uncertainty surrounding the behavior of individual probes on tunable bead arrays. JF - Applied and Environmental Microbiology AU - Chandler, Darrell P AU - Jarrell, Ann E AU - Roden, Eric R AU - Golova, Julia AU - Chernov, Boris AU - Schipma, Matthew J AU - Peacock, Aaron D AU - Long, Philip E AD - Argonne National Laboratory, Argonne, Illinois 60439. Pacific Northwest National Laboratory, Richland, Washington 99352. University of Wisconsin, Madison, Wisconsin 53706. University of Tennessee, Knoxville, Tennessee 37932 Y1 - 2006/07// PY - 2006 DA - July 2006 SP - 4672 EP - 4687 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 72 IS - 7 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts; Microbiology Abstracts B: Bacteriology; Aqualine Abstracts KW - iron-reducing bacteria KW - Bioremediation KW - DNA probes KW - Nucleotide sequence KW - Abundance KW - Climate change KW - Probes KW - Oligonucleotides KW - Microbiological analysis KW - Resuspended sediments KW - rRNA KW - Desulfotomaculum KW - Sediment Contamination KW - Polymerase chain reaction KW - microbiological analysis KW - Bacteria KW - Sediment pollution KW - Sulfate-reducing bacteria KW - Suspension KW - Data processing KW - Geochemistry KW - Environmental impact KW - Acetic acid KW - Sediments KW - Community composition KW - nucleic acids KW - Behavior KW - Community structure KW - Acids KW - Microbiology KW - rRNA 16S KW - Nucleic acids KW - J 02310:Genetics & Taxonomy KW - W 30950:Waste Treatment & Pollution Clean-up KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants KW - Q5 08505:Prevention and control KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - A 01400:Soil Microbes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20721916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Suspension+Array+Analysis+of+16S+rRNA+from+Fe-+and+SO+sub%284%29+super%282%29-Reducing+Bacteria+in+Uranium-Contaminated+Sediments+Undergoing+Bioremediation&rft.au=Chandler%2C+Darrell+P%3BJarrell%2C+Ann+E%3BRoden%2C+Eric+R%3BGolova%2C+Julia%3BChernov%2C+Boris%3BSchipma%2C+Matthew+J%3BPeacock%2C+Aaron+D%3BLong%2C+Philip+E&rft.aulast=Chandler&rft.aufirst=Darrell&rft.date=2006-07-01&rft.volume=72&rft.issue=7&rft.spage=4672&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Resuspended sediments; Sediment pollution; Community composition; Bioremediation; Nucleotide sequence; Climate change; Microbiology; Environmental impact; Microbiological analysis; iron-reducing bacteria; Sulfate-reducing bacteria; Data processing; DNA probes; Abundance; Oligonucleotides; Acetic acid; Sediments; rRNA; nucleic acids; Community structure; Polymerase chain reaction; rRNA 16S; microbiological analysis; Geochemistry; Nucleic acids; Bacteria; Suspension; Behavior; Acids; Probes; Sediment Contamination; Desulfotomaculum ER - TY - JOUR T1 - Using size exclusion chromatography-RPLC and RPLC-CIEF as two-dimensional separation strategies for protein profiling AN - 20402289; 7762385 AB - Bottom-up proteomics (analyzing peptides that result from protein digestion) has demonstrated capability for broad proteome coverage and good throughput. However, due to incomplete sequence coverage, this approach is not ideally suited to the study of modified proteins. The modification complement of a protein can best be elucidated by analyzing the intact protein. 2-DE, typically coupled with the analysis of peptides that result from in-gel digestion, is the most frequently applied protein separation technique in MS-based proteomics. As an alternative, numerous column-based liquid phase techniques, which are generally more amenable to automation, are being investigated. In this work, the combination of size-exclusion chromatography(SEC) fractionation with RPLC-Fourier-transform ion cyclotron resonance (FTICR)-MS is compared with the combination of RPLC fractionation with CIEF-FTICR-MS for the analysis of the Shewanella oneidensis proteome. SEC-RPLC-FTICR-MS allowed the detection of 297proteins, as opposed to 166using RPLC-CIEF-FTICR-MS, indicating that approaches based on LC-MS provide better coverage. However, there were significant differences in the sets of proteins detected and both approaches provide a basis for accurately quantifying changes in protein and modified protein abundances. JF - Electrophoresis AU - Simpson, David C AU - Ahn, Seonghee AU - Pasa-Tolic, Ljiljana AU - Bogdanov, Bogdan AU - Mottaz, Heather M AU - Vilkov, Andrey N AU - Anderson, Gordon A AU - Lipton, Mary S AU - Smith, Richard D AD - Pacific Northwest National Laboratory, Richland, WA, USA, ljiljana.pasatolic@pnl.gov Y1 - 2006/07// PY - 2006 DA - Jul 2006 SP - 2722 EP - 2733 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 27 IS - 13 SN - 0173-0835, 0173-0835 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Digestion KW - Shewanella oneidensis KW - Automation KW - proteomics KW - protein purification KW - Separation techniques KW - J 02330:Biochemistry KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20402289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Electrophoresis&rft.atitle=Using+size+exclusion+chromatography-RPLC+and+RPLC-CIEF+as+two-dimensional+separation+strategies+for+protein+profiling&rft.au=Simpson%2C+David+C%3BAhn%2C+Seonghee%3BPasa-Tolic%2C+Ljiljana%3BBogdanov%2C+Bogdan%3BMottaz%2C+Heather+M%3BVilkov%2C+Andrey+N%3BAnderson%2C+Gordon+A%3BLipton%2C+Mary+S%3BSmith%2C+Richard+D&rft.aulast=Simpson&rft.aufirst=David&rft.date=2006-07-01&rft.volume=27&rft.issue=13&rft.spage=2722&rft.isbn=&rft.btitle=&rft.title=Electrophoresis&rft.issn=01730835&rft_id=info:doi/10.1002%2Felps.200600037 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-12-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Digestion; Automation; protein purification; proteomics; Separation techniques; Shewanella oneidensis DO - http://dx.doi.org/10.1002/elps.200600037 ER - TY - JOUR T1 - Bioavailability of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) to the prairie vole (Microtus ochrogaster) AN - 20390135; 7073012 AB - Concerns have been raised over potential bioavailability and biotransfer of energetic materials such as hexahydro-1,3,5-trinitro-l,3,5-triazine (RDX). The present study assessed plant-incorporated [ super(14)C]RDX and plant-derived [ super(14)C]RDX-metabolite ingestion by the prairie vole (Microlus ochrogaster). The animals were fed labeled chow (maximum, less than or equal to 10 g/d) for 5 or 7 d, followed by a 6- or 4-d chase period. More than 95% of all label presented was recovered in the summed excreta, with 74% of this in the fecal nonabsorbed bulk. Greater than 20% of the presented [ super(14)C]RDX and plant-derived [ super(14)C]RDX metabolites were absorbed by the animals' digestive tracts. These materials were either metabolized to super(14)CO sub(2) (8-10% of the total label) or removed as nitrogenous waste through the kidneys (10-14%). Both super(14)dC-urine and super(14)CO sub(2) excretion continued after the feces cleared, indicating ongoing metabolism of the labeled material. Approximately 4% was retained within the tissues at death, with the highest total activity in the liver and the highest specific activity in the testes. Other labeled tissues included the lung, heart, brain, spleen, skeletal muscle, bone, and pancreas. All these tissues containing [ super(14)C]RDX-derived materials are available to subsequent predators, indicating a potential for transfer to a higher trophic level. JF - Environmental Toxicology and Chemistry AU - Fellows, R J AU - Driver, C R AU - Cataldo, DA AU - Harvey, S D AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, robert.fellows@pnl.gov Y1 - 2006/07// PY - 2006 DA - Jul 2006 SP - 1881 EP - 1886 VL - 25 IS - 7 SN - 0730-7268, 0730-7268 KW - hexahydro-1,3,5-trinitro-l,3,5-triazine KW - Pollution Abstracts; Toxicology Abstracts KW - Testes KW - Pancreas KW - Microtus ochrogaster KW - Predators KW - Metabolites KW - Bioavailability KW - Skeletal muscle KW - Feces KW - Mortality KW - Muscles KW - Wastes KW - Brain KW - Microtus KW - hexahydro-1,3,5-trinitro-1,3,5-triazine KW - Cardiac muscle KW - Spleen KW - Ingestion KW - Trophic levels KW - predators KW - Bone KW - Digestive tract KW - Lung KW - Kidney KW - Plants KW - Liver KW - Excretion KW - Metabolism KW - X 24350:Industrial Chemicals KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20390135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Chemistry&rft.atitle=Bioavailability+of+hexahydro-1%2C3%2C5-trinitro-1%2C3%2C5-triazine+%28RDX%29+to+the+prairie+vole+%28Microtus+ochrogaster%29&rft.au=Fellows%2C+R+J%3BDriver%2C+C+R%3BCataldo%2C+DA%3BHarvey%2C+S+D&rft.aulast=Fellows&rft.aufirst=R&rft.date=2006-07-01&rft.volume=25&rft.issue=7&rft.spage=1881&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Testes; Pancreas; Brain; Wastes; Spleen; Cardiac muscle; hexahydro-1,3,5-trinitro-1,3,5-triazine; Metabolites; Predators; Trophic levels; Bone; Bioavailability; Digestive tract; Lung; Liver; Plants; Kidney; Excretion; Skeletal muscle; Feces; Metabolism; Mortality; Muscles; Ingestion; predators; Microtus; Microtus ochrogaster ER - TY - BOOK T1 - Microscopic mass transfer process and its influence on microbial reduction of sorbed uranium(VI) in subsurface sediments AN - 20035342; 7397020 AB - Microscopic and spectroscopic analyses of uranium-contaminated sediments from select locations at the US Department of Energy (DOE) Hanford site have revealed that sorbed uranium (U) often exists as uranyl precipitates (most probably as Na-boltwoodite) associated with intragrain fractures of granitic clasts in the sediment. Because of physical size and biochemical nutrient limitations that constrain the growth of bacteria within the intragrain fractures, we hypothesized that the rates of microbial reduction of intragrain U(VI) would be limited by the mass transfers between intragrain fractures associated with U(VI) and extragrain locations where bacteria could populate. To test this hypothesis, we have characterized and developed models to describe microscopic, intragrain mass transfer process and evaluated its influence on microbial reduction of intragrain U(VI). Nuclear magnetic resonance (NMR), pulse gradient spin-echo (PGSE) measurements showed that the intragrain fractures of the granitic clasts in the Hanford sediment contained two domains with distinct pore diffusivities. The fast diffusion domain had an apparent tortuosity of 1.5, while that of the slow region was two orders of magnitude larger. A two-domain diffusion model was established and used to simulate microscopic mass transfer process. The influence of mass transfer process on microbial reduction of intragrain U(VI) was investigated using both U(VI)-contaminated sediments and synthetic uranyl precipitates that were entrapped within alginate beads. A dissimilatory metal-reducing bacterium (DMRB), Shewanella oneidensis strain MR-1 was used to assess the coupling of solid phase U(VI) dissolution, mass transfer, and microbial activity. Laser-induced fluorescence spectroscopic analysis was used to assess the microscopic U(VI) dissolution and mass transfer processes during microbial activities, and transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS) were used to investigate the bioreduction product, biogenic U(IV) precipitates, and their associations with bacterial surfaces and membranes. The results showed that intragrain U(VI) had to dissolve and diffuse out of intragrain regions before it could be reduced by DMRB. The overall rate of microbial reduction of intragrain U(VI) was controlled by the coupling of U(VI) dissolution, mass transfer, and microbial activities. JF - Proceedings of the 2006 AGU Western Pacific Geophysics Meeting AU - Liu, C AU - Zachara, J M AU - Jeon, B AU - Wang, Z AU - McKinley, J P AU - Fredrickson, J K Y1 - 2006/07// PY - 2006 DA - July 2006 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; ASFA 3: Aquatic Pollution & Environmental Quality KW - B15A-04 KW - INE, USA, Washington, Hanford KW - Transmission electron microscopy KW - Nutrients KW - Spectroscopy KW - Models KW - Disease transmission KW - Alginic acid KW - Uranium KW - Shewanella oneidensis KW - Diffusion KW - N.M.R. KW - Growth rate KW - Fluorescence KW - Alginates KW - Fractures KW - Limiting factors KW - Strains KW - Sediments KW - USA, Washington, Hanford Site KW - IW, Pacific KW - Pores KW - Energy KW - Dissolution KW - Mass transfer KW - Nuclear magnetic resonance KW - Diffusion coefficients KW - Q5 08503:Characteristics, behavior and fate KW - A 01310:Products of Microorganisms KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20035342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Aquatic+Science+%26+Fisheries+Abstracts+%28ASFA%29+3%3A+Aquatic+Pollution+%26+Environmental+Quality&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Liu%2C+C%3BZachara%2C+J+M%3BJeon%2C+B%3BWang%2C+Z%3BMcKinley%2C+J+P%3BFredrickson%2C+J+K&rft.aulast=Liu&rft.aufirst=C&rft.date=2006-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Microscopic+mass+transfer+process+and+its+influence+on+microbial+reduction+of+sorbed+uranium%28VI%29+in+subsurface+sediments&rft.title=Microscopic+mass+transfer+process+and+its+influence+on+microbial+reduction+of+sorbed+uranium%28VI%29+in+subsurface+sediments&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-06-01 N1 - Last updated - 2016-12-21 ER - TY - JOUR T1 - Integrated analysis of transcriptomic and proteomic data of Desulfovibrio vulgaris: zero-inflated Poisson regression models to predict abundance of undetected proteins AN - 19972064; 6993817 AB - MOTIVATION: Integrated analysis of global scale transcriptomic and proteomic data can provide important insights into the metabolic mechanisms underlying complex biological systems. However, because the relationship between protein abundance and mRNA expression level is complicated by many cellular and physical processes, sophisticated statistical models need to be developed to capture their relationship. RESULTS: In this study, we describe a novel data-driven statistical model to integrate whole-genome microarray and proteomic data collected from Desulfovibrio vulgaris grown under three different conditions. Based on the Poisson distribution pattern of proteomic data and the fact that a large number of proteins were undetected (excess zeros), zero-inflated Poisson (ZIP)-based models were proposed to define the correlation pattern between mRNA and protein abundance. In addition, by assuming that there is a probability mass at zero representing unexpressed genes and expressed proteins that were undetected owing to technical limitations, a Potential ZIP model was established. Two significant improvements introduced by this approach are (1) the predicted protein abundance level values for experimentally detected proteins are corrected by considering their mRNA levels and (2) protein abundance values can be predicted for undetected proteins (in the case of this study, similar to 83% of the proteins in the D.vulgaris genome) for better biological interpretation. We demonstrated the use of these statistical models by comparatively analyzing proteomic and microarray results from D.vulgaris grown on lactate-based versus formate-based media. These models correctly predicted increased expression of Ech hydrogenase and decreased expression of Coo hydrogenase for D.vulgaris grown on formate. CONTACT: Weiwen.Zhangatpnl.gov Supplementary information: Supplementary data are available at Bioinformatics online. JF - Bioinformatics AU - Nie, Lei AU - Wu, Gang AU - Brockman, Fred J AU - Zhang, Weiwen AD - Department of Biostatistics, Bioinformatics and Biomathematics, Georgetown University Washington DC 20057, USA. Department of Biological Sciences, University of Maryland at Baltimore County Baltimore, MD 21250, USA. Microbiology Department, Pacific Northwest National Laboratory PO Box 999, Mail Stop P7-50, Richland, WA 99352, USA Y1 - 2006/07/01/ PY - 2006 DA - 2006 Jul 01 SP - 1641 EP - 1647 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 22 IS - 13 SN - 1367-4803, 1367-4803 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Genomes KW - Gene expression KW - Mathematical models KW - Data processing KW - Statistical analysis KW - Regression analysis KW - proteomics KW - Bioinformatics KW - Desulfovibrio vulgaris KW - Hydrogenase KW - DNA microarrays KW - W 30960:Bioinformatics & Computer Applications KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19972064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Integrated+analysis+of+transcriptomic+and+proteomic+data+of+Desulfovibrio+vulgaris%3A+zero-inflated+Poisson+regression+models+to+predict+abundance+of+undetected+proteins&rft.au=Nie%2C+Lei%3BWu%2C+Gang%3BBrockman%2C+Fred+J%3BZhang%2C+Weiwen&rft.aulast=Nie&rft.aufirst=Lei&rft.date=2006-07-01&rft.volume=22&rft.issue=13&rft.spage=1641&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Gene expression; Genomes; Data processing; Mathematical models; Regression analysis; Statistical analysis; Bioinformatics; proteomics; Hydrogenase; DNA microarrays; Desulfovibrio vulgaris ER - TY - JOUR T1 - Oxidative stress and heat-shock responses in Desulfovibrio vulgaris bygenome-wide transcriptomic analysis AN - 19524600; 7239093 AB - Sulfate-reducing bacteria such as Desulfovibrio vulgaris have developed a set of responses that allow them to survive in hostile environments. To obtain further knowledge of the protective mechanisms employed by D. vulgaris in response to oxidative stress and heat shock, we performed a genome-wide transcriptomic analysis to determine the cellular responses to both stimuli. The results showed that 130 genes were responsive to oxidative stress, while 427 genes were responsive to heat-shock. Functional analyses suggested that the genes regulated were involved in a variety of cellular functions. Amino acid biosynthetic pathways were induced by both oxidative stress and heat shock treatments, while fatty acid metabolism, purine and cofactor biosynthesis were induced by heat shock only. The rubrerythrin gene (rbr) was up-regulated in response to oxidative stress, suggesting an important role for this protein in the oxidative damage resistance response in D. vulgaris. In addition, thioredoxin reductase (trxB) was also responsive to oxidative stress, suggesting that the thiol-specific redox system might also be involved in oxidative protection in this organism. In contrast, the expression of rubredoxin oxidoreductase (rbo), superoxide dismutase (sodB) and catalase (katA) genes were not regulated in response to oxidative stress. Comparison of cellular responses to oxidative stress and heat-shock allowed the identification of 66 genes that showed a similar drastic response to both environmental perturbations, implying that these genes might be part of the general stress response (GSR) network in D. vulgaris. This hypothesis was further supported by the identification of a conserved motif upstream of these stress-responsive genes. JF - Antonie Van Leeuwenhoek AU - Zhang, Weiwen AU - Culley, David E AU - Hogan, Mike AU - Vitiritti, Luigi AU - Brockman, Fred J AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, WA, 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2006/07// PY - 2006 DA - July 2006 SP - 41 EP - 55 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de] VL - 90 IS - 1 SN - 0003-6072, 0003-6072 KW - ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts B: Bacteriology KW - Biosynthesis KW - Redox reactions KW - Sulfate-reducing bacteria KW - Amino acids KW - Biochemistry KW - Desulfovibrio vulgaris KW - Catalase KW - purines KW - Cofactors KW - Oxidative stress KW - Superoxide dismutase KW - rubredoxin oxidoreductase KW - Gene regulation KW - thioredoxin reductase KW - DNA KW - Microorganisms KW - Fatty acids KW - Conserved sequence KW - Heat shock KW - Oxidoreductases KW - Metabolism KW - J 02310:Genetics & Taxonomy KW - Q1 08206:Physiology, biochemistry, biophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19524600?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Kinetic+Analysis+of+the+Bacterial+Reduction+of+Goethite&rft.au=Liu%2C+Chongxuan%3BKota%2C+S%3BZachara%2C+J+M%3BFredrickson%2C+J+K%3BBrinkman%2C+C+K&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2001-06-15&rft.volume=35&rft.issue=12&rft.spage=2482&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Redox reactions; Biosynthesis; Biochemistry; Fatty acids; Microorganisms; DNA; Heat shock; Oxidoreductases; Sulfate-reducing bacteria; Amino acids; purines; Catalase; Cofactors; Superoxide dismutase; Oxidative stress; Gene regulation; rubredoxin oxidoreductase; thioredoxin reductase; Conserved sequence; Metabolism; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1007/s10482-006-9059-9 ER - TY - JOUR T1 - Simulating Long-Term and Residual Effects of Nitrogen Fertilization on Corn Yields, Soil Carbon Sequestration, and Soil Nitrogen Dynamics AN - 19300814; 7031030 AB - Soil carbon sequestration (SCS) has the potential to attenuate increasing atmospheric CO sub(2) and mitigate greenhouse warming. Understanding of this potential can be assisted by the use of simulation models. We evaluated the ability of the EPIC model to simulate corn (Zea mays L.) yields and soil organic carbon (SOC) at Arlington, WI, during 1958-1991. Corn was grown continuously on a Typic Argiudoll with three N levels: LTN1 (control), LTN2 (medium), and LTN3 (high). The LTN2 N rate started at 56 kg ha super(-1) (1958), increased to 92 kg ha super(-1) (1963), and reached 140 kg ha super(-1) (1973). The LTN3 N rate was maintained at twice the LTN2 level. In 1984, each plot was divided into four subplots receiving N at 0, 84, 168, and 252 kg ha super(-1). Five treatments were used for model evaluation. Percent errors of mean yield predictions during 1958-1983 decreased as N rate increased (LTN1 = -5.0%, LTN2 = 3.5%, and LTN3 = 1.0%). Percent errors of mean yield predictions during 1985- 1991 were larger than during the first period. Simulated and observed mean yields during 1958-1991 were highly correlated (R super(2) = 0.961, p < 0.01). Simulated SOC agreed well with observed values with percent errors from - 5.8 to 0.5% in 1984 and from -5.1 to 0.7% in 1990. EPIC captured the dynamics of SOC, SCS, and microbial biomass. Simulated net N mineralization rates were lower than those from laboratory incubations. Improvements in EPIC's ability to predict annual variability of crop yields may lead to improved estimates of SCS. JF - Journal of Environmental Quality AU - He, X AU - Izaurralde, R C AU - Vanotti, M B AU - Williams, J R AU - Thomson, A M AD - Joint Global Change Research Institute, Pacific Northwest National Laboratory, University of Maryland, 8400 Baltimore Avenue, Suite 201, College Park, MD 20740, allison.thomson@pnl.gov Y1 - 2006/07// PY - 2006 DA - Jul 2006 SP - 1608 EP - 1619 PB - American Society of Agronomy Inc., 677 S. Segoe Road Madison WI 53711 USA, [mailto:lhendrickson@agronomy.org] VL - 35 IS - 4 SN - 0047-2425, 0047-2425 KW - Sustainability Science Abstracts; Pollution Abstracts KW - Organic carbon KW - crop yield KW - Simulation KW - Mineralization KW - Biomass KW - corn KW - Carbon sequestration KW - fertilization KW - Zea mays KW - greenhouses KW - Carbon dioxide KW - Nitrogen KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19300814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Simulating+Long-Term+and+Residual+Effects+of+Nitrogen+Fertilization+on+Corn+Yields%2C+Soil+Carbon+Sequestration%2C+and+Soil+Nitrogen+Dynamics&rft.au=He%2C+X%3BIzaurralde%2C+R+C%3BVanotti%2C+M+B%3BWilliams%2C+J+R%3BThomson%2C+A+M&rft.aulast=He&rft.aufirst=X&rft.date=2006-07-01&rft.volume=35&rft.issue=4&rft.spage=1608&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/10.2134%2Fjeq2005.0259 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Carbon sequestration; fertilization; Organic carbon; greenhouses; crop yield; Simulation; Biomass; Mineralization; Carbon dioxide; corn; Nitrogen; Zea mays DO - http://dx.doi.org/10.2134/jeq2005.0259 ER - TY - BOOK T1 - Fe(III) Reduction kinetics by Metal-Reducing Outer Membrane Cytochromes OmcA and MtrC of Shewanella oneidensis MR-1 AN - 19296942; 7397004 AB - As a part of the electron transfer network of Shewanella oneidensis MR-1, OmcA and MtrC are decaheme c- type cytochromes localized to the outer membrane where they are involved in transferring electrons to insoluble oxidized metals, such as iron [Fe(III)] and manganese [Mn(III, IV)] oxides and oxyhydroxides, during anaerobic respiration. Despite recent advances in understanding the important roles played by OmcA and MtrC in reduction of Fe(III) or Mn(III/IV), their ability to reduce metal oxides has never been biochemically characterized. To determine whether OmcA and MtrC possess any reductase activity toward Fe(III) or Mn(III/IV), especially solid metal oxides, we purified OmcA and MtrC to nearly electrophoretic homogeneity. After being chemically reduced with sodium dithionate, the purified OmcA and MtrC showed rapid reductase activity to soluble Fe(III)-NTA, Fe(III)-EDTA, Fe(III)-citrate and Mn(III)-pyrophosphate, but not toward NaNO2 or NaNO_3, demonstrating that OmcA and MtrC are functional reductase toward Fe(III)/Mn(III). The redox reaction of OmcA/MtrC with Fe(III)/Mn(III) aqueous complexes appeared to proceed in two stages, a fast stage with second order rate constant ranging from 0.035 muM-1s-1 to 0.45 muM- 1s-1 and a slow stage with second order rate constant ranging from 0.010 muM-1s-1 to 0.023 muM-1s-1. Interestingly, while MtrC reduced uranium(VI) citrate (with a pseudo-first order rate constant of 0.039 s-1), the reduction of uranium(VI) citrate by OmcA was not detectible. This difference indicates that each reductase may have its own unique biological functions. Purified OmcA and MtrC also possess reductase activity toward different solid metal oxides, albeit with lower rate in comparison to their reduction rates for soluble Fe(III) and uranium complexes. The pseudo-first order rate constant of reduction of MnO2 was 0.0068 s-1 by OmcA and 0.011 s- 1) by MtrC. The estimated reduction rates of Fe(III) oxides, such as ferrihydrite and hematite, by OmcA and MtrC were at least two orders of magnitude slower than those of MnO2, which are consistent with in vivo observations that S. oneidensis MR-1 reduces Mn(III, IV) faster than Fe(III). In addition, our preliminary data indicated that OmcA and MtrC directly bind to hematite. In conclusion, outer membrane decaheme OmcA and MtrC are functional metal reductases toward a broad spectrum of substrates. JF - Proceedings of the 2006 AGU Western Pacific Geophysics Meeting AU - Liu, C AU - Wang, Z AU - Shi, L AU - Zachara, J M AU - Fredrickson, J K Y1 - 2006/07// PY - 2006 DA - Jul 2006 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [URL:http://www.agu.org] KW - Microbiology Abstracts B: Bacteriology KW - B11A-0034 KW - Anaerobic respiration KW - Cytochromes KW - Data processing KW - Heavy metals KW - Outer membranes KW - Electron transfer KW - Sodium KW - reductase KW - Kinetics KW - Uranium KW - Shewanella oneidensis KW - oxides KW - Manganese KW - Iron KW - Citric acid KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19296942?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Bacteriology+Abstracts+%28Microbiology+B%29&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Liu%2C+C%3BWang%2C+Z%3BShi%2C+L%3BZachara%2C+J+M%3BFredrickson%2C+J+K&rft.aulast=Liu&rft.aufirst=C&rft.date=2006-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Fe%28III%29+Reduction+kinetics+by+Metal-Reducing+Outer+Membrane+Cytochromes+OmcA+and+MtrC+of+Shewanella+oneidensis+MR-1&rft.title=Fe%28III%29+Reduction+kinetics+by+Metal-Reducing+Outer+Membrane+Cytochromes+OmcA+and+MtrC+of+Shewanella+oneidensis+MR-1&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 ER - TY - JOUR T1 - Isolation of a High-Affinity Functional Protein Complex between OmcA and MtrC: Two Outer Membrane Decaheme c-Type Cytochromes of Shewanella oneidensis MR-1 AN - 17267827; 6996216 AB - Shewanella oneidensis MR-1 is a facultatively anaerobic bacterium capable of using soluble and insoluble forms of manganese [Mn(III/IV)] and iron [Fe(III)] as terminal electron acceptors during anaerobic respiration. To assess the structural association of two outer membrane-associated c-type decaheme cytochromes (i.e., OmcA [SO1779] and MtrC [SO1778]) and their ability to reduce soluble Fe(III)-nitrilotriacetic acid (NTA), we expressed these proteins with a C-terminal tag in wild-type S. oneidensis and a mutant deficient in these genes (i.e., Delta omcA mtrC). Endogenous MtrC copurified with tagged OmcA in wild-type Shewanella, suggesting a direct association. To further evaluate their possible interaction, both proteins were purified to near homogeneity following the independent expression of OmcA and MtrC in the Delta omcA mtrC mutant. Each purified cytochrome was confirmed to contain 10 hemes and exhibited Fe(III)-NTA reductase activity. To measure binding, MtrC was labeled with the multiuse affinity probe 4',5'-bis(1,3,2-dithioarsolan-2-yl)fluorescein (1,2-ethanedithiol) sub(2), which specifically associates with a tetracysteine motif engineered at the C terminus of MtrC. Upon titration with OmcA, there was a marked increase in fluorescence polarization indicating the formation of a high-affinity protein complex (K sub(d) < 500 nM) between MtrC and OmcA whose binding was sensitive to changes in ionic strength. Following association, the OmcA-MtrC complex was observed to have enhanced Fe(III)-NTA reductase specific activity relative to either protein alone, demonstrating that OmcA and MtrC can interact directly with each other to form a stable complex that is consistent with their role in the electron transport pathway of S. oneidensis MR-1. JF - Journal of Bacteriology AU - Shi, Liang AU - Chen, Baowei AU - Wang, Zheming AU - Elias, Dwayne A AU - Mayer, MUljana AU - Gorby, Yuri A AU - Ni, Shuison AU - Lower, Brian H AU - Kennedy, David W AU - Wunschel, David S AU - Mottaz, Heather M AU - Marshall, Matthew J AU - Hill, Eric A AU - Beliaev, Alexander S AU - Zachara, John M AU - Fredrickson, James K AU - Squier, Thomas C AD - Pacific Northwest National Laboratory, Richland, Washington 99354 Y1 - 2006/07/01/ PY - 2006 DA - 2006 Jul 01 SP - 4705 EP - 4714 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 188 IS - 13 SN - 0021-9193, 0021-9193 KW - MtrC protein KW - OmcA protein KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Cytochromes KW - Anaerobic respiration KW - reductase KW - Ionic strength KW - Shewanella oneidensis KW - Titration KW - Outer membranes KW - Electron transport KW - Iron KW - Manganese KW - Fluorescence polarization KW - J 02320:Cell Biology KW - G 07770:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17267827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Isolation+of+a+High-Affinity+Functional+Protein+Complex+between+OmcA+and+MtrC%3A+Two+Outer+Membrane+Decaheme+c-Type+Cytochromes+of+Shewanella+oneidensis+MR-1&rft.au=Shi%2C+Liang%3BChen%2C+Baowei%3BWang%2C+Zheming%3BElias%2C+Dwayne+A%3BMayer%2C+MUljana%3BGorby%2C+Yuri+A%3BNi%2C+Shuison%3BLower%2C+Brian+H%3BKennedy%2C+David+W%3BWunschel%2C+David+S%3BMottaz%2C+Heather+M%3BMarshall%2C+Matthew+J%3BHill%2C+Eric+A%3BBeliaev%2C+Alexander+S%3BZachara%2C+John+M%3BFredrickson%2C+James+K%3BSquier%2C+Thomas+C&rft.aulast=Shi&rft.aufirst=Liang&rft.date=2006-07-01&rft.volume=188&rft.issue=13&rft.spage=4705&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Anaerobic respiration; Cytochromes; reductase; Ionic strength; Outer membranes; Titration; Electron transport; Manganese; Iron; Fluorescence polarization; Shewanella oneidensis ER - TY - JOUR T1 - Single enzyme nanoparticles in nanoporous silica: A hierarchical approach to enzyme stabilization and immobilization AN - 17193100; 6860682 AB - Single enzyme nanoparticles of alpha -chymotrypsin (SEN-CT), in which each CT molecule is surrounded by a thin polymeric organic/inorganic network, stabilized the CT activity in a shaking condition as well as in a non-shaking condition. Since SEN-CT is soluble in a buffer solution and less than 10 nm in size, SEN-CT could be further immobilized in nanoporous silica with an average pore size of 29 nm. Free CT and SEN-CT were immobilized in nanoporous silica (NPS), and nanoporous silica that was first silanized with aminopropyltriethoxysilane (amino-NPS) to generate a positive surface charge. The SEN-CT adsorbed in amino- NPS was more stable than CT immobilized by either adsorption in NPS or covalent bonding to amino-NPS. In shaking conditions, nanoporous silica provided an additional stabilization by protecting SEN-CT from shear stresses. At 22 degree C with harsh shaking, free, NPS-adsorbed and NPS-covalently attached CT showed half lives of 1, 62, and 80 h, respectively; whereas SEN-CT adsorbed in amino- NPS showed no activity loss within 12 days. The combination of SENs and nanoporous silica, which makes an active and stable immobilized enzyme system, represents a new structure for biocatalytic applications. JF - Enzyme and Microbial Technology AU - Kim, Jungbae AU - Jia, Hongfei AU - Lee, Chang-Won AU - Chung, Seung-Wook AU - Kwak, Ja Hun AU - Shin, Yongsoon AU - Dohnalkova, Alice AU - Kim, Byung-Gee AU - Wang, Ping AU - Grate, Jay W AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P.O. Box 999, Richland, WA 99352, USA, Jungbae.Kim@pnl.gov Y1 - 2006/07// PY - 2006 DA - Jul 2006 SP - 474 EP - 480 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 39 IS - 3 SN - 0141-0229, 0141-0229 KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Single enzyme nanoparticles KW - Nanoporous silica KW - Mesocellular foams KW - alpha -Chymotrypsin KW - Enzyme stabilization KW - Enzyme immobilization KW - Pores KW - Silica KW - Immobilized enzymes KW - Adsorption KW - Stress KW - Surface charge KW - nanoparticles KW - Immobilization KW - W2 32210:Immobilization KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17193100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Enzyme+and+Microbial+Technology&rft.atitle=Single+enzyme+nanoparticles+in+nanoporous+silica%3A+A+hierarchical+approach+to+enzyme+stabilization+and+immobilization&rft.au=Kim%2C+Jungbae%3BJia%2C+Hongfei%3BLee%2C+Chang-Won%3BChung%2C+Seung-Wook%3BKwak%2C+Ja+Hun%3BShin%2C+Yongsoon%3BDohnalkova%2C+Alice%3BKim%2C+Byung-Gee%3BWang%2C+Ping%3BGrate%2C+Jay+W&rft.aulast=Kim&rft.aufirst=Jungbae&rft.date=2006-07-01&rft.volume=39&rft.issue=3&rft.spage=474&rft.isbn=&rft.btitle=&rft.title=Enzyme+and+Microbial+Technology&rft.issn=01410229&rft_id=info:doi/10.1016%2Fj.enzmictec.2005.11.042 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Pores; Silica; alpha -Chymotrypsin; Immobilized enzymes; Adsorption; Stress; Surface charge; nanoparticles; Immobilization DO - http://dx.doi.org/10.1016/j.enzmictec.2005.11.042 ER - TY - CPAPER T1 - Identifyng the Source Regions of Hydrocarbon Emissions using Cluster Analysis and Potential Source Contribution Functions T2 - 99th Annual Conference and Exhibition of the Air and Waste Management Association AN - 40145649; 4296136 JF - 99th Annual Conference and Exhibition of the Air and Waste Management Association AU - Xie, Y AU - Berkowitz, C Y1 - 2006/06/20/ PY - 2006 DA - 2006 Jun 20 KW - Hydrocarbons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40145649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=99th+Annual+Conference+and+Exhibition+of+the+Air+and+Waste+Management+Association&rft.atitle=Identifyng+the+Source+Regions+of+Hydrocarbon+Emissions+using+Cluster+Analysis+and+Potential+Source+Contribution+Functions&rft.au=Xie%2C+Y%3BBerkowitz%2C+C&rft.aulast=Xie&rft.aufirst=Y&rft.date=2006-06-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=99th+Annual+Conference+and+Exhibition+of+the+Air+and+Waste+Management+Association&rft.issn=&rft_id=info:doi/ L2 - http://www.awma.org/ACE2006/images/2006%20FinalProgram1.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Analysis of Size-Segregated Aerosol Compositional Data Collected as Part of the Texas 2000 Air Quality Study T2 - 99th Annual Conference and Exhibition of the Air and Waste Management Association AN - 40091130; 4296190 JF - 99th Annual Conference and Exhibition of the Air and Waste Management Association AU - Xie, Y AU - Disselkamp, R AU - Berkowitz, C AU - Shutthanandan, V AU - Barrie, L AU - Cliff, S AU - Cahill, T Y1 - 2006/06/20/ PY - 2006 DA - 2006 Jun 20 KW - USTexas KW - Air quality KW - Aerosols UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40091130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=99th+Annual+Conference+and+Exhibition+of+the+Air+and+Waste+Management+Association&rft.atitle=Analysis+of+Size-Segregated+Aerosol+Compositional+Data+Collected+as+Part+of+the+Texas+2000+Air+Quality+Study&rft.au=Xie%2C+Y%3BDisselkamp%2C+R%3BBerkowitz%2C+C%3BShutthanandan%2C+V%3BBarrie%2C+L%3BCliff%2C+S%3BCahill%2C+T&rft.aulast=Xie&rft.aufirst=Y&rft.date=2006-06-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=99th+Annual+Conference+and+Exhibition+of+the+Air+and+Waste+Management+Association&rft.issn=&rft_id=info:doi/ L2 - http://www.awma.org/ACE2006/images/2006%20FinalProgram1.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The use of Positive Matrix Factorization with Conditional Probability Functions: An Air Quality Case Study from Houston, Texas. T2 - 99th Annual Conference and Exhibition of the Air and Waste Management Association AN - 40090753; 4296134 JF - 99th Annual Conference and Exhibition of the Air and Waste Management Association AU - Xie, Y AU - Berkowitz, C Y1 - 2006/06/20/ PY - 2006 DA - 2006 Jun 20 KW - USTexas KW - USTexas, Houston KW - Air quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40090753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=99th+Annual+Conference+and+Exhibition+of+the+Air+and+Waste+Management+Association&rft.atitle=The+use+of+Positive+Matrix+Factorization+with+Conditional+Probability+Functions%3A+An+Air+Quality+Case+Study+from+Houston%2C+Texas.&rft.au=Xie%2C+Y%3BBerkowitz%2C+C&rft.aulast=Xie&rft.aufirst=Y&rft.date=2006-06-20&rft.volume=&rft.issue=11&rft.spage=6033&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/ L2 - http://www.awma.org/ACE2006/images/2006%20FinalProgram1.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Enzyme-amplified protein microarray and a fluidic renewable surface fluorescence immunoassay for botulinum neurotoxin detection using high-affinity recombinant antibodies. AN - 68350713; 17723391 AB - Two immunoassay platforms were developed for either the sensitive or rapid detection of botulinum neurotoxin A (BoNT/A), using high-affinity recombinant monoclonal antibodies against the receptor binding domain of the heavy chain of BoNT/A. These antibodies also bind the same epitopes of the receptor binding domain present on a nontoxic recombinant heavy chain fragment used for assay development and testing in the current study. An enzyme-linked immunosorbent assay (ELISA) microarray using tyramide amplification for localized labeling was developed for the specific and sensitive detection of BoNT. This assay has the sensitivity to detect BoNT in buffer and blood plasma samples down to 14fM (1.4 pg mL(-1)). Three capture antibodies and one antibody combination were compared in the development of this assay. Using a selected pair from the same set of recombinant monoclonal antibodies, a renewable surface microcolumn sensor was developed for the rapid detection of BoNT/A in an automated fluidic system. The ELISA microarray assay, because of its sensitivity, offers a screening test with detection limits comparable to the mouse bioassay, with results available in hours instead of days. The renewable surface assay is less sensitive but much faster, providing results in less than 10 min. JF - Analytica chimica acta AU - Varnum, Susan M AU - Warner, Marvin G AU - Dockendorff, Brian AU - Anheier, Norman C AU - Lou, Jianlong AU - Marks, James D AU - Smith, Leonard A AU - Feldhaus, Michael J AU - Grate, Jay W AU - Bruckner-Lea, Cynthia J AD - Pacific Northwest National Laboratory, Fundamental Science Directorate, Richland, WA 99352, United States. susan.varnum@pnl.gov Y1 - 2006/06/16/ PY - 2006 DA - 2006 Jun 16 SP - 137 EP - 143 VL - 570 IS - 2 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68350713?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytica+chimica+acta&rft.atitle=Enzyme-amplified+protein+microarray+and+a+fluidic+renewable+surface+fluorescence+immunoassay+for+botulinum+neurotoxin+detection+using+high-affinity+recombinant+antibodies.&rft.au=Varnum%2C+Susan+M%3BWarner%2C+Marvin+G%3BDockendorff%2C+Brian%3BAnheier%2C+Norman+C%3BLou%2C+Jianlong%3BMarks%2C+James+D%3BSmith%2C+Leonard+A%3BFeldhaus%2C+Michael+J%3BGrate%2C+Jay+W%3BBruckner-Lea%2C+Cynthia+J&rft.aulast=Varnum&rft.aufirst=Susan&rft.date=2006-06-16&rft.volume=570&rft.issue=2&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Analytica+chimica+acta&rft.issn=1873-4324&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-08-29 N1 - Date created - 2007-08-28 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Electrically controlled anion exchange based on polypyrrole and carbon nanotubes nanocomposite for perchlorate removal. AN - 68626221; 16830574 AB - A simple and highly effective process for perchlorate removal based on electrically switched ion exchange (ESIX) was developed by using polypyrrole (PPy) deposited on high surface area carbon nanotubes. The redox switching of conducting polymers such as polypyrrole is accompanied by the exchange of ions into or out of the polymer. This effect could be used for the development of an electrically switchable ion-exchanger for water purification, particularly for the removal of anions. In the research presented in this paper, the anion-exchange behavior and ion-exchange capacity of electrochemically prepared polypyrrole on glassy carbon electrodes with and without carbon nanotube (CNT) backbones are characterized using cyclic voltammetry and X-ray photoelectron spectroscopy. It has been found that the presence of carbon nanotube backbone results in an improvement in the anion exchange stability of polypyrrole, which may be due to the stronger interaction between carbon nanotubes and polypyrrole. Chronoamperometric studies show that the process of electrically switched anion exchange could be finished within 10 s. The selectivity of PPy/CNTs films for the perchlorate ion is demonstrated using cyclic voltammetry and X-ray photoelectron spectroscopy (XPS). The results of the present study point to the possibility of developing a green process for removing ClO4- from wastewater using such a novel nanostructured PPy/CNT composite thin film through an electrically switched anion exchange. JF - Environmental science & technology AU - Lin, Yuehe AU - Cui, Xiaoli AU - Bontha, Jagan AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, Washington 99352, USA. yuehe.lin@pnl.gov Y1 - 2006/06/15/ PY - 2006 DA - 2006 Jun 15 SP - 4004 EP - 4009 VL - 40 IS - 12 SN - 0013-936X, 0013-936X KW - Anion Exchange Resins KW - 0 KW - Nanotubes, Carbon KW - Perchlorates KW - Polymers KW - Pyrroles KW - Water Pollutants, Chemical KW - polypyrrole KW - 30604-81-0 KW - Index Medicus KW - Water Purification -- instrumentation KW - Electric Conductivity KW - Water Purification -- methods KW - Electrochemistry KW - Water Pollutants, Chemical -- chemistry KW - Nanotubes, Carbon -- chemistry KW - Perchlorates -- chemistry KW - Polymers -- chemistry KW - Pyrroles -- chemistry KW - Anion Exchange Resins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68626221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Electrically+controlled+anion+exchange+based+on+polypyrrole+and+carbon+nanotubes+nanocomposite+for+perchlorate+removal.&rft.au=Lin%2C+Yuehe%3BCui%2C+Xiaoli%3BBontha%2C+Jagan&rft.aulast=Lin&rft.aufirst=Yuehe&rft.date=2006-06-15&rft.volume=40&rft.issue=12&rft.spage=4004&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-11-22 N1 - Date created - 2006-07-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Residual waste from Hanford tanks 241-C-203 and 241-C-204. 2. Contaminant release model. AN - 68623160; 16830538 AB - Release of U and 99Tc from residual sludge in Hanford waste tanks 241-C-203 and 241-C-204 atthe U.S. Department of Energy's (DOE) Hanford Site in southeastern Washington state was quantified by water-leaching, selective extractions, empirical solubility measurements, and thermodynamic modeling. A contaminant release model was developed based on these experimental results and solid-phase characterization results presented elsewhere. Uranium release was determined to be controlled by two phases and occurred in three stages. In the first stage, U release is controlled by the solubility of tejkaite, which is suppressed by high concentrations of sodium released from the dissolution of NaNO3 in the residual sludges. Equilibrium solubility calculations indicate the U released during this stage will have a maximum concentration of 0.021 M. When all the NaNO3 has dissolved from the sludge, the solubility of the remaining cejkaite will increase to 0.28 M. After cejkaite has completely dissolved, the majority of the remaining U is in the form of poorly crystalline Na2U2O7 [or clarkeite Na[(UO2)O(OH)](H20)0-1]. In contact with Hanford groundwater this phase is not stable, and becquerelite becomes the U solubility controlling phase, with a calculated equilibrium concentration of 1.2 x 10(-4) M. For Tc, a significant fraction of its concentration in the residual sludge was determined to be relatively insoluble (20 wt % for C-203 and 80 wt % for C-204). Because of the low concentrations of Tc in these sludge materials, the characterization studies did not identify any discrete Tc solids phases. Release of the soluble fraction of Tc was found to occur concomitantly with NO3-. It was postulated that a NaNO3-NaTcO4 solid solution could be responsible for this behavior. The Tc release concentrations for the soluble fraction were estimated to be 2.4 x 10-6 M for C-203 and 2.7 x 10(-5) M for C-204. Selective extraction results indicated that the recalcitrant fraction of Tc was associated with Fe oxides. Release of the recalcitrant fraction of Tc was assumed to be controlled by dissolution of Fe oxide in the form of ferrihydrite. Based on this assumption and measured values for the ratio of recalcitrant Tc to total Fe in each bulk sludge, the release concentration of the recalcitrant fraction of Tc was calculated to be 3.9 x 10(-12) M for C-203 and 10.0 x 10(-12) M for C-204. JF - Environmental science & technology AU - Cantrell, Kirk J AU - Krupka, Kenneth M AU - Deutsch, William J AU - Lindberg, Michael J AD - Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop K6-81, Richland, Washington 99352, USA. kirk.cantrell@pnl.gov Y1 - 2006/06/15/ PY - 2006 DA - 2006 Jun 15 SP - 3755 EP - 3761 VL - 40 IS - 12 SN - 0013-936X, 0013-936X KW - Radioactive Waste KW - 0 KW - Sewage KW - Water KW - 059QF0KO0R KW - Uranium KW - 4OC371KSTK KW - Technetium KW - 7440-26-8 KW - Index Medicus KW - Washington KW - Solubility KW - Thermodynamics KW - Water -- chemistry KW - Sewage -- chemistry KW - Technetium -- isolation & purification KW - Refuse Disposal -- methods KW - Uranium -- isolation & purification KW - Radioactive Waste -- analysis KW - Technetium -- analysis KW - Uranium -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68623160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Residual+waste+from+Hanford+tanks+241-C-203+and+241-C-204.+2.+Contaminant+release+model.&rft.au=Cantrell%2C+Kirk+J%3BKrupka%2C+Kenneth+M%3BDeutsch%2C+William+J%3BLindberg%2C+Michael+J&rft.aulast=Cantrell&rft.aufirst=Kirk&rft.date=2006-06-15&rft.volume=40&rft.issue=12&rft.spage=3755&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-11-22 N1 - Date created - 2006-07-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Residual Waste from Hanford Tanks 241-C-203 and 241-C-204. 1. Solids Characterization AN - 20392433; 7295692 AB - Bulk X-ray diffraction (XRD), synchrotron X-ray micro-diffraction ( mu XRD), and scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS) were used to characterize solids in residual sludge from single-shell underground waste tanks C-203 and C-204 at the U.S. Department of Energy's Hanford Site in southeastern Washington state. Cejkaite [Na sub(4)(UO sub(2))(CO sub(3)) sub(3)] was the dominant crystalline phase in the C-203 and C-204 sludges. This is one of the few occurrences of Cejkaite reported in the literature and may be the first documented occurrence of this phase in radioactive wastes from DOE sites. Characterization of residual solids from water leach and selective extraction tests indicates that Cejkaite has a high solubility and a rapid rate of dissolution in water at ambient temperature and that these sludges may also contain poorly crystalline Na sub(2)U sub(2)O sub(7) [or clarkeite Na[(UO sub(2))O(OH)](H sub(2)O) sub(0-1)] as well as nitratine (soda niter, NaNO sub(3)), goethite [ alpha -FeO(OH)], and maghemite ( gamma -Fe sub(2)O sub(3)). Results of the SEM/EDS analyses indicate that the C-204 sludge also contains a solid that lacks crystalline form and is composed of Na, Al, P, O, and possibly C. Other identified solids include Fe oxides that often also contain Cr and Ni and occur as individual particles, coatings on particles, and botryoidal aggregates; a porous-looking material (or an aggregate of submicrometer particles) that typically contain Al, Cr, Fe, Na, Ni, Si, U, P, O, and C; Si oxide (probably quartz); and Na-AI silicate(s). The latter two solids probably represent minerals from the Hanford sediment, which were introduced into the tank during prior sampling campaigns or other tank operation activities. The surfaces of some Fe-oxide particles in residual solids from the water leach and selective extraction tests appear to have preferential dissolution cavities. If these Fe oxides contain contaminants of concern, then the release of these contaminants into infiltrating water would be limited by the dissolution rates of these Fe oxides, which in general have low to very low solubilities and slow dissolution rates at near neutral to basic pH values under oxic conditions. JF - Environmental Science & Technology AU - Krupka, K M AU - Schaef, H T AU - Arey, B W AU - Heald, S M AU - Deutsch, W J AU - Lindberg, MJ AU - Cantrell, K J AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN K6-81, Richland, Washington 99352, USA, ken.krupka@pnl.gov Y1 - 2006/06/15/ PY - 2006 DA - 2006 Jun 15 SP - 3749 EP - 3754 VL - 40 IS - 12 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Particulates KW - USA, Washington KW - Pollutants KW - Sampling KW - pH KW - Sediment pollution KW - Solubility KW - Leaching KW - Wastes KW - Radioactive wastes KW - Temperature KW - Solids KW - Sludge KW - X-ray diffraction KW - Aggregates KW - USA, Washington, Hanford Site KW - USA, Washington, Hanford KW - Microscopy KW - X-ray spectroscopy KW - Minerals KW - Oxides KW - Hazardous wastes KW - Coatings KW - AQ 00007:Industrial Effluents KW - SW 3040:Wastewater treatment processes KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20392433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Residual+Waste+from+Hanford+Tanks+241-C-203+and+241-C-204.+1.+Solids+Characterization&rft.au=Krupka%2C+K+M%3BSchaef%2C+H+T%3BArey%2C+B+W%3BHeald%2C+S+M%3BDeutsch%2C+W+J%3BLindberg%2C+MJ%3BCantrell%2C+K+J&rft.aulast=Krupka&rft.aufirst=K&rft.date=2006-06-15&rft.volume=40&rft.issue=12&rft.spage=3749&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes051155f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-04-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Leaching; Microscopy; Temperature; Radioactive wastes; X-ray spectroscopy; Particulates; X-ray diffraction; Minerals; pH; Hazardous wastes; Coatings; Solubility; Pollutants; Wastes; Solids; Sampling; Sludge; Aggregates; Oxides; USA, Washington; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1021/es051155f ER - TY - CPAPER T1 - Water Management Planning: A Case Study at Blue Grass Army Depot T2 - 2006 Annual Conference and Exposition of the American Water Works Association (ACE 06) AN - 39243455; 4264046 JF - 2006 Annual Conference and Exposition of the American Water Works Association (ACE 06) AU - Solana, Amy AU - Stoughton, Kate McMordie Y1 - 2006/06/11/ PY - 2006 DA - 2006 Jun 11 KW - Grasses KW - Water management KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39243455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Economics&rft.atitle=Can+pollution+problems+be+effectively+solved+by+environmental+science+and+technology%3F+An+analysis+of+critical+limitations&rft.au=Huesemann%2C+M+H&rft.aulast=Huesemann&rft.aufirst=M&rft.date=2001-05-01&rft.volume=37&rft.issue=2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Ecological+Economics&rft.issn=09218009&rft_id=info:doi/ L2 - http://www.awwa.org/conferences/ace/sessions/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Update of Market Assessment for Capturing Water Conservation Opportunities in the Federal Sector T2 - 2006 Annual Conference and Exposition of the American Water Works Association (ACE 06) AN - 39213719; 4264318 JF - 2006 Annual Conference and Exposition of the American Water Works Association (ACE 06) AU - Stoughton, Kate McMordie AU - Solana, Amy AU - Long, David Y1 - 2006/06/11/ PY - 2006 DA - 2006 Jun 11 KW - Water conservation KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39213719?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2006+Annual+Conference+and+Exposition+of+the+American+Water+Works+Association+%28ACE+06%29&rft.atitle=Update+of+Market+Assessment+for+Capturing+Water+Conservation+Opportunities+in+the+Federal+Sector&rft.au=Stoughton%2C+Kate+McMordie%3BSolana%2C+Amy%3BLong%2C+David&rft.aulast=Stoughton&rft.aufirst=Kate&rft.date=2006-06-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2006+Annual+Conference+and+Exposition+of+the+American+Water+Works+Association+%28ACE+06%29&rft.issn=&rft_id=info:doi/ L2 - http://www.awwa.org/conferences/ace/sessions/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Transport and biogeochemical reaction of metals in a physically and chemically heterogeneous aquifer AN - 51572166; 2006-055355 AB - Biologically mediated reductive dissolution and precipitation of metals and radionuclides play key roles in their subsurface transport. Physical and chemical properties of natural aquifer systems, such as reactive iron-oxide surface area and hydraulic conductivity, are often highly heterogeneous in complex ways that can exert significant control on transport, natural attenuation, and active remediation processes. Typically, however, few data on the detailed distribution of these properties are available for incorporation into predictive models. In this study, we integrate field-scale geophysical, hydrologic, and geochemical data from a well-characterized site with the results of laboratory batch-reaction studies to formulate two-dimensional numerical models of reactive transport in a heterogeneous granular aquifer. The models incorporate several levels of coupling, including effects of ferrous iron sorption onto (and associated reduction of reactive surface area of) ferric iron surfaces, microbial growth and transport dynamics, and cross-correlation between hydraulic conductivity and initial ferric iron surface area. These models are then used to evaluate the impacts of physical and chemical heterogeneity on transport of trace levels of uranium under natural conditions, as well as the effectiveness of uranium reduction and immobilization upon introduction of a soluble electron donor (a potential biostimulation remedial strategy). JF - Geosphere AU - Scheibe, Timothy D AU - Fang, Yilin AU - Murray, Christopher J AU - Roden, Eric E AU - Chen, Jinsong AU - Chien, Yi-Ju AU - Brooks, Scott C AU - Hubbard, Susan S Y1 - 2006/06// PY - 2006 DA - June 2006 SP - 220 EP - 235 PB - Geological Society of America, Boulder, CO VL - 2 IS - 4 KW - United States KW - solute transport KW - ground-penetrating radar KW - data processing KW - Northampton County Virginia KW - cores KW - ground water KW - Oyster Virginia KW - chemical reactions KW - digital simulation KW - sediments KW - reactive transport KW - oxides KW - heterogeneity KW - Delmarva Peninsula KW - water pollution KW - geochemistry KW - Virginia KW - numerical models KW - biochemistry KW - grain size KW - geophysical methods KW - radar methods KW - pollution KW - hydrochemistry KW - iron hydroxides KW - two-dimensional models KW - flows KW - aquifers KW - hydroxides KW - boreholes KW - metals KW - uranium KW - hydraulic conductivity KW - actinides KW - 02B:Hydrochemistry KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51572166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geosphere&rft.atitle=Transport+and+biogeochemical+reaction+of+metals+in+a+physically+and+chemically+heterogeneous+aquifer&rft.au=Scheibe%2C+Timothy+D%3BFang%2C+Yilin%3BMurray%2C+Christopher+J%3BRoden%2C+Eric+E%3BChen%2C+Jinsong%3BChien%2C+Yi-Ju%3BBrooks%2C+Scott+C%3BHubbard%2C+Susan+S&rft.aulast=Scheibe&rft.aufirst=Timothy&rft.date=2006-06-01&rft.volume=2&rft.issue=4&rft.spage=220&rft.isbn=&rft.btitle=&rft.title=Geosphere&rft.issn=1553-040X&rft_id=info:doi/10.1130%2FGES00029.1 L2 - http://www.gsajournals.org/perlserv/?request=get-archive&issn=1553-040X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 34 N1 - PubXState - CO N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; aquifers; biochemistry; boreholes; chemical reactions; cores; data processing; Delmarva Peninsula; digital simulation; flows; geochemistry; geophysical methods; grain size; ground water; ground-penetrating radar; heterogeneity; hydraulic conductivity; hydrochemistry; hydroxides; iron hydroxides; metals; Northampton County Virginia; numerical models; oxides; Oyster Virginia; pollution; radar methods; reactive transport; sediments; solute transport; two-dimensional models; United States; uranium; Virginia; water pollution DO - http://dx.doi.org/10.1130/GES00029.1 ER - TY - JOUR T1 - Change of collision efficiency with distance in bacterial transport experiments AN - 51518439; 2007-001920 JF - Ground Water AU - Dong, Hailiang AU - Scheibe, Timothy D AU - Johnson, William P AU - Monkman, Crystal M AU - Fuller, Mark E Y1 - 2006/06// PY - 2006 DA - June 2006 SP - 415 EP - 429 PB - National Ground Water Association, Westerville, OH VL - 44 IS - 3 SN - 0017-467X, 0017-467X KW - United States KW - water quality KW - Chesapeake Bay KW - technology KW - mechanism KW - Northampton County Virginia KW - preferential flow KW - environmental analysis KW - remediation KW - Cenozoic KW - Oyster Virginia KW - aluminum hydroxides KW - transport KW - decontamination KW - Yorktown Formation KW - sediments KW - oxides KW - chemical composition KW - diffusivity KW - hydrology KW - concentration KW - experimental studies KW - Virginia KW - pollution KW - rates KW - bioremediation KW - aquitards KW - iron hydroxides KW - models KW - hydroxides KW - Tertiary KW - Neogene KW - infiltration KW - fine-grained materials KW - bacteria KW - Pliocene KW - hydraulic conductivity KW - Atlantic Ocean KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51518439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+Journal&rft.atitle=Development+of+an+Integrated+Microanalytical+System+for+Analysis+of+Lead+in+Saliva+and+Linkage+to+a+Physiologically+Based+Pharmacokinetic+Model+Describing+Lead+Saliva+Secretion&rft.au=Timchalk%2C+C%3BPoet%2C+T+S%3BLin%2C+Y%3BWeitz%2C+K+K%3BZhao%2C+Rui%3BThrall%2C+K+D&rft.aulast=Timchalk&rft.aufirst=C&rft.date=2001-05-01&rft.volume=62&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=American+Industrial+Hygiene+Association+Journal&rft.issn=00028894&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 66 N1 - PubXState - OH N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2016-10-25 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aluminum hydroxides; aquitards; Atlantic Ocean; bacteria; bioremediation; Cenozoic; chemical composition; Chesapeake Bay; concentration; decontamination; diffusivity; environmental analysis; experimental studies; fine-grained materials; hydraulic conductivity; hydrology; hydroxides; infiltration; iron hydroxides; mechanism; models; Neogene; Northampton County Virginia; oxides; Oyster Virginia; Pliocene; pollution; preferential flow; rates; remediation; sediments; technology; Tertiary; transport; United States; Virginia; water quality; Yorktown Formation DO - http://dx.doi.org/10.1111/j.1745-6584.2005.00133.x ER - TY - JOUR T1 - Functional link between TNF biosynthesis and CaM-dependent activation of inducible nitric oxide synthase in RAW 264.7 macrophages AN - 20860177; 6813538 AB - Inflammatory responses stimulated by bacterial endotoxin LPS involve Ca super(2+)-mediated signaling, yet the cellular sensors that determine cell fate in response to LPS remain poorly understood. We report that exposure of RAW 264.7 macrophage-like cells to LPS induces a rapid increase in CaM abundance, which is associated with the modulation of the inflammatory response. Increases in CaM abundance precede nuclear localization of key transcription factors (i.e., NF- Kappa B p65 subunit, phospho-c-Jun, Sp1) and subsequent increases in the proinflammatory cytokine TNF- alpha and inducible nitric oxide synthase (iNOS). Cellular apoptosis after LPS challenge is blocked upon inhibition of iNOS activity using the pharmacological inhibitor 1400W. LPS-mediated iNOS expression and apoptosis also were inhibited by siRNA-mediated silencing of TNF induction, indicating TNF induction both precedes and is necessary for subsequent regulation of iNOS expression. Increasing the level of cellular CaM by stable transfection results in reductions in LPS-induced expression of TNF and iNOS, along with reduced activation of their transcriptional regulators and concomitant protection against apoptosis. Thus the level of CaM available for Ca super(2+)-dependent signaling regulation plays a key role in determining the expression of the proinflammatory and proapoptotic cascade during cellular activation by LPS. These results indicate a previously unrecognized central role for CaM in maintaining cellular homeostasis in response to LPS such that, under resting conditions, cellular concentrations of CaM are sufficient to inhibit the biosynthesis of proinflammatory mediators associated with macrophage activation. Although CaM and iNOS protein levels are coordinately increased as part of the oxidative burst, limiting cellular concentrations of CaM due to association with iNOS (and other high-affinity binders) commit the cell to an unchecked inflammatory cascade leading to apoptosis. JF - American Journal of Physiology: Cell Physiology AU - Weber, Thomas J AU - Smallwood, Heather S AU - Kathmann, Loel E AU - Markillie, Lye Meng AU - Squier, Thomas C AU - Thrall, Brian D AD - Cell Biology and Biochemistry Group, Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington Y1 - 2006/06// PY - 2006 DA - Jun 2006 SP - C1512 EP - C1520 PB - American Physiological Society, 9650 Rockville Pike Bethesda MD 20814-3991 USA, [mailto:webmaster@the-aps.org], [URL:http://www.the-aps.org/] VL - 290 IS - 6 SN - 0363-6143, 0363-6143 KW - Microbiology Abstracts B: Bacteriology KW - Macrophages KW - Endotoxins KW - Apoptosis KW - Calcium KW - Homeostasis KW - NF- Kappa B protein KW - Cell activation KW - Inflammation KW - Nitric-oxide synthase KW - Sp1 protein KW - Transfection KW - Transcription factors KW - Cytokines KW - Lipopolysaccharides KW - Calcium signalling KW - Tumor necrosis factor- alpha KW - Cell fate KW - Transcription activation KW - Signal transduction KW - J 02350:Immunology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20860177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Application+of+regularized+discrimination+analysis+to+regional+seismic+event+identification&rft.au=Anderson%2C+D+N%3BTaylor%2C+S+R%3BAnonymous&rft.aulast=Anderson&rft.aufirst=D&rft.date=2001-04-01&rft.volume=72&rft.issue=2&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-08-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Endotoxins; Macrophages; Calcium; Apoptosis; Homeostasis; Inflammation; Cell activation; NF- Kappa B protein; Nitric-oxide synthase; Sp1 protein; Transfection; Transcription factors; Lipopolysaccharides; Cytokines; Calcium signalling; Cell fate; Tumor necrosis factor- alpha; Transcription activation; Signal transduction ER - TY - JOUR T1 - Dispersion of Perfluorocarbon Tracers within the Salt Lake Valley during VTMX 2000 AN - 20400172; 7003300 AB - Six perfluorocarbon tracer experiments were conducted in Salt Lake City, Utah, during October 2000 as part of the Vertical Transport and Mixing (VTMX) field campaign. Four tracers were released at different sites to obtain information on dispersion during stable conditions within down-valley flow, canyon outflow, and interacting circulations in the downtown area. Some of the extensive tracer data that were collected are presented in the context of the meteorological field campaign measurements. Tracer measurements at building-top sites in the downtown area and along the lower slopes of the Wasatch Front indicated that vertical mixing processes transported material up to at least 180 m above the valley floor, although model simulations suggest that tracers were transported upward to much higher elevations. Tracer data provided evidence of downward mixing of canyon outflow, upward mixing within down-valley flow, horizontal transport above the surface stable layer, and transport within horizontal eddies produced by the interaction of canyon and down-valley flows. Although point meteorological measurements are useful in evaluating the forecasts produced by mesoscale models, the tracer data provide valuable information on how the time-varying three-dimensional mean and turbulent motions over urban and valley spatial scales affect dispersion. Although the mean tracer transport predicted by the modeling system employed in this study was qualitatively similar to the measurements, improvements are needed in the treatment of turbulent vertical mixing. JF - Journal of Applied Meteorology and Climatology AU - Fast, J D AU - Allwine, K J AU - Dietz, R N AU - Clawson, K L AU - Torcolini, J C AD - Pacific Northwest National Laboratory, P.O. Box 999, K9-30, Richland, WA 99352, jeromefast@pnl.gov Y1 - 2006/06// PY - 2006 DA - Jun 2006 SP - 793 EP - 812 PB - American Meteorological Society VL - 45 IS - 6 SN - 1558-8424, 1558-8424 KW - Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - USA, Utah, Salt Lake Valley KW - Salt lakes KW - Mixing KW - Dispersion in valleys KW - Tracers KW - Climatology KW - Slopes KW - Tracer experiments KW - USA, Utah, Salt Lake City KW - USA, Utah KW - Turbulent flow KW - Atmospheric circulation KW - Model Studies KW - Meteorological measurements KW - Salts KW - Oceanic circulation KW - Eddies KW - Tracer transport KW - Fronts KW - Numerical simulations KW - Elevation KW - Mesoscale models KW - Canyons KW - Dispersion models KW - SW 2060:Effects on water of human nonwater activities KW - M2 551.510.42:Air Pollution (551.510.42) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20400172?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology+and+Climatology&rft.atitle=Dispersion+of+Perfluorocarbon+Tracers+within+the+Salt+Lake+Valley+during+VTMX+2000&rft.au=Fast%2C+J+D%3BAllwine%2C+K+J%3BDietz%2C+R+N%3BClawson%2C+K+L%3BTorcolini%2C+J+C&rft.aulast=Fast&rft.aufirst=J&rft.date=2006-06-01&rft.volume=39&rft.issue=2&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=1558-8424&volume=45&page=793 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Turbulent flow; Salt lakes; Atmospheric circulation; Dispersion in valleys; Meteorological measurements; Oceanic circulation; Tracer transport; Numerical simulations; Fronts; Climatology; Mesoscale models; Dispersion models; Tracer experiments; Salts; Tracers; Eddies; Elevation; Canyons; Slopes; Mixing; Model Studies; USA, Utah; USA, Utah, Salt Lake Valley; USA, Utah, Salt Lake City DO - http://dx.doi.org/10.1175/JAM2371.1 ER - TY - JOUR T1 - Interaction of helium atoms with edge dislocations in alpha -Fe AN - 20230204; 8549794 AB - Formation energies, binding energies, and migration energies of interstitial He atoms in and near the core of an a/21 1 1{1 1 0} edge dislocation in alpha -Fe are determined in atomistic simulations using conjugate gradient relaxation and the Dimer method for determining saddle point energies. Results are compared as a function of the proximity of the He to the dislocation core and the excess interstitial volume in regions around the dislocation. Interstitial He atoms have negative binding energy on the compression side of the dislocation and strong positive binding energy on the tension side. Even at low temperatures, interstitial He atoms in the vicinity of the dislocation easily migrate to the dislocation core, where they form crowdion interstitials oriented along the close-packed slip direction, with binding energies in excess of 2 eV. Crowdion interstitial He atoms diffuse along the dislocation core, transverse to the crowdion direction, with a migration energy of 0.4-0.5 eV. JF - Journal of Nuclear Materials AU - Heinisch, H L AU - Gao, F AU - Kurtz, R J AU - Le, E A AD - Pacific Northwest National Laboratory, Materials Science Division, P8-15, P.O. Box 999, Richland, WA 99352, USA, hl.heinisch@pnl.gov Y1 - 2006/06// PY - 2006 DA - Jun 2006 SP - 141 EP - 148 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 351 IS - 1-3 SN - 0022-3115, 0022-3115 KW - Environment Abstracts KW - migration KW - Radioactive materials KW - low temperature KW - Simulation KW - Helium KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20230204?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nuclear+Materials&rft.atitle=Interaction+of+helium+atoms+with+edge+dislocations+in+alpha+-Fe&rft.au=Heinisch%2C+H+L%3BGao%2C+F%3BKurtz%2C+R+J%3BLe%2C+E+A&rft.aulast=Heinisch&rft.aufirst=H&rft.date=2006-06-01&rft.volume=351&rft.issue=1-3&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nuclear+Materials&rft.issn=00223115&rft_id=info:doi/10.1016%2Fj.jnucmat.2006.02.027 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - migration; Helium; Simulation; low temperature; Radioactive materials DO - http://dx.doi.org/10.1016/j.jnucmat.2006.02.027 ER - TY - JOUR T1 - Diffusion of He interstitials in grain boundaries in alpha -Fe AN - 20228776; 8549793 AB - Helium diffusion in metals is a complex process due to its very low solubility in solids and its ability to be trapped by vacancy type defects or impurities. The preferential positions and predominant migration mechanisms of He atoms depend on temperature, as well as the presence of other intrinsic or irradiation induced defects that can act as traps for He. This work presents results of a systematic molecular dynamics study of the diffusion mechanisms of He atoms in grain boundaries in alpha -Fe. Two grain boundaries, capital sigma 111 1 0 {3 2 3} and capital sigma 31 1 0 {1 1 2}, were used for the current investigations. The low-temperature (about 0 K) equilibrium structures of these grain boundaries were determined using standard molecular dynamics relaxation techniques, with a flexible border condition. The migration of He atoms were followed for 1-14 ns, at temperatures between 600 and 1200 K. The diffusion coefficient of He atoms using the mean square displacements of He atoms, and the effective migration energies were determined. We found that He atoms diffuse rapidly in the capital sigma 11 grain boundary, where the binding energy of a He atom to the boundary is high. He migration is primarily one-dimensional along specific directions, but a few directional changes were observed at higher temperatures. In the capital sigma 3 grain boundary, where the He binding energy is low, He atoms migrate one-dimensionally at low temperature, two-dimensionally at intermediate temperature and three-dimensionally at higher temperature. The different activation energies and diffusion mechanisms in these two representative grain boundaries suggests that the atomic structures of the grain boundaries play an important role in the diffusivity of He. JF - Journal of Nuclear Materials AU - Gao, F AU - Heinisch, H AU - Kurtz, R J AD - Pacific Northwest National Laboratory, MS K8-93, P.O. Box 999, Richland, Washington 99352, USA, fei.gao@pnl.gov Y1 - 2006/06// PY - 2006 DA - Jun 2006 SP - 133 EP - 140 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 351 IS - 1-3 SN - 0022-3115, 0022-3115 KW - Environment Abstracts KW - Metals KW - migration KW - Temperature KW - Irradiation KW - Radioactive materials KW - low temperature KW - Helium KW - Diffusion KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20228776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Nuclear+Materials&rft.atitle=Diffusion+of+He+interstitials+in+grain+boundaries+in+alpha+-Fe&rft.au=Gao%2C+F%3BHeinisch%2C+H%3BKurtz%2C+R+J&rft.aulast=Gao&rft.aufirst=F&rft.date=2006-06-01&rft.volume=351&rft.issue=1-3&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Journal+of+Nuclear+Materials&rft.issn=00223115&rft_id=info:doi/10.1016%2Fj.jnucmat.2006.02.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Diffusion; migration; Temperature; Helium; Metals; low temperature; Irradiation; Radioactive materials DO - http://dx.doi.org/10.1016/j.jnucmat.2006.02.015 ER - TY - JOUR T1 - Challenges in biocatalysis for enzyme-based biofuel cells AN - 17154714; 6816426 AB - Enzyme-based biofuel cells are attracting attention rapidly partially due to the promising advances reported recently. However, there are issues to be addressed before biofuel cells become competitive in practical applications. Two critical issues are short lifetime and poor power density, both of which are related to enzyme stability, electron transfer rate, and enzyme loading. Recent progress in nanobiocatalysis opens the possibility to improve in these aspects. Many nano-structured materials, such as mesoporous media, nanoparticles, nanofibers, and nanotubes, have been demonstrated as efficient hosts of enzyme immobilization. It is evident that, when nanostructure of conductive materials are used, the large surface area of these nanomaterials can increase the enzyme loading and facilitate reaction kinetics, and thus improving the power density of biofuel cells. In addition, research efforts have also been made to improve the activity and stability of immobilized enzymes by using nanostructures. It appears to be reasonable to us to expect that progress in nanostuctured biocatalysts will play a critical role in overcoming the major obstacles in the development of powerful biofuel cells. JF - Biotechnology Advances AU - Kim, Jungbae AU - Jia, Hongfei AU - Wang, Ping AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, Jungbae.Kim@pnl.gov Y1 - 2006/06// PY - 2006 DA - Jun 2006 SP - 296 EP - 308 PB - Elsevier Science Inc., Box 882 New York NY 10159 USA, [mailto:usinfo-f@elsevier.com] VL - 24 IS - 3 SN - 0734-9750, 0734-9750 KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Bioengineering Abstracts KW - Biofuel cell KW - Nanoparticle KW - Nanofiber KW - Nanotube KW - Nanobiocatalysis KW - Nanomaterials KW - Enzyme immobilization KW - Enzyme stabilization KW - Electrospinning KW - Surface area KW - biocatalysts KW - Immobilized enzymes KW - nanotubes KW - Electron transfer KW - nanoparticles KW - Immobilization KW - W2 32550:Energy, minerals KW - W 30965:Miscellaneous, Reviews KW - W4 210:Bioremediation, Bioreactors & BioCycling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17154714?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Advances&rft.atitle=Challenges+in+biocatalysis+for+enzyme-based+biofuel+cells&rft.au=Kim%2C+Jungbae%3BJia%2C+Hongfei%3BWang%2C+Ping&rft.aulast=Kim&rft.aufirst=Jungbae&rft.date=2006-06-01&rft.volume=24&rft.issue=3&rft.spage=296&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Advances&rft.issn=07349750&rft_id=info:doi/10.1016%2Fj.biotechadv.2005.11.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-07-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - biocatalysts; Surface area; Immobilized enzymes; nanotubes; Electron transfer; nanoparticles; Immobilization DO - http://dx.doi.org/10.1016/j.biotechadv.2005.11.006 ER - TY - JOUR T1 - Relation between mRNA expression and sequence information in Desulfovibrio vulgaris: Combinatorial contributions of upstream regulatory motifs and coding sequence features to variations in mRNA abundance AN - 17193677; 6856679 AB - The context-dependent expression of genes is the core for biological activities, and significant attention has been given to identification of various factors contributing to gene expression at genomic scale. However, so far this type of analysis has been focused either on relation between mRNA expression and non-coding sequence features such as upstream regulatory motifs or on correlation between mRNA abundance and non-random features in coding sequences (e.g., codon usage and amino acid usage). In this study multiple regression analyses of the mRNA abundance and all sequence information in Desulfovibrio vulgaris were performed, with the goal to investigate how much coding and non-coding sequence features contribute to the variations in mRNA expression, and in what manner they act together. Using the AlignACE program, 442 over-represented motifs were identified from the upstream 100bp region of 293 genes located in the known regulons. Regression of mRNA expression data against the measures of coding and non-coding sequence features indicated that 54.1% of the variations in mRNA abundance can be explained by the presence of upstream motifs, while coding sequences alone contribute to 29.7% of the variations in mRNA abundance. Interestingly, most of contribution from coding sequences is overlapping with that from upstream motifs; thereby a total of 60.3% of the variations in mRNA abundance can be explained when coding and non-coding information was included. This result demonstrates that upstream regulatory motifs and coding sequence information contribute to the overall mRNA expression in a combinatorial rather than an additive manner. JF - Biochemical and Biophysical Research Communications AU - Wu, G AU - Nie, L AU - Zhang, W AD - Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop P7-50, Richland, WA 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2006/05/26/ PY - 2006 DA - 2006 May 26 SP - 114 EP - 121 PB - Elsevier Inc. VL - 344 IS - 1 SN - 0006-291X, 0006-291X KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - Gene expression KW - Regulatory sequences KW - Abundance KW - Multiple regression analysis KW - codon usage KW - genomics KW - Desulfovibrio vulgaris KW - Amino acid sequence KW - J 02726:RNA and ribosomes KW - N 14825:Gene Regulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17193677?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemical+and+Biophysical+Research+Communications&rft.atitle=Relation+between+mRNA+expression+and+sequence+information+in+Desulfovibrio+vulgaris%3A+Combinatorial+contributions+of+upstream+regulatory+motifs+and+coding+sequence+features+to+variations+in+mRNA+abundance&rft.au=Wu%2C+G%3BNie%2C+L%3BZhang%2C+W&rft.aulast=Wu&rft.aufirst=G&rft.date=2006-05-26&rft.volume=344&rft.issue=1&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=Biochemical+and+Biophysical+Research+Communications&rft.issn=0006291X&rft_id=info:doi/10.1016%2Fj.bbrc.2006.03.124 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Gene expression; Regulatory sequences; Abundance; Multiple regression analysis; genomics; codon usage; Amino acid sequence; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1016/j.bbrc.2006.03.124 ER - TY - CPAPER T1 - RT3D: Reactive Transport Code for MNA/EA Evaluation at Chlorinated Solvent Sites T2 - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AN - 40119550; 4255463 JF - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Johnson, C D AU - Truex, M J AU - Clement, T P Y1 - 2006/05/22/ PY - 2006 DA - 2006 May 22 KW - Solvents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40119550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fifth+International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=RT3D%3A+Reactive+Transport+Code+for+MNA%2FEA+Evaluation+at+Chlorinated+Solvent+Sites&rft.au=Johnson%2C+C+D%3BTruex%2C+M+J%3BClement%2C+T+P&rft.aulast=Johnson&rft.aufirst=C&rft.date=2006-05-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fifth+International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ L2 - http://www.battelle.org/environment/er/conferences/chlorcon/preliminar yprogram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Long-Term Stability of Arsenic and Lead in Remediated Soil T2 - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AN - 40113455; 4255858 JF - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Deutsch, B AU - Cantrell, K AU - Seefried, D AU - Greiner, R Y1 - 2006/05/22/ PY - 2006 DA - 2006 May 22 KW - Heavy metals KW - Arsenic KW - Lead KW - Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40113455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fifth+International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=The+Long-Term+Stability+of+Arsenic+and+Lead+in+Remediated+Soil&rft.au=Deutsch%2C+B%3BCantrell%2C+K%3BSeefried%2C+D%3BGreiner%2C+R&rft.aulast=Deutsch&rft.aufirst=B&rft.date=2006-05-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fifth+International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ L2 - http://www.battelle.org/environment/er/conferences/chlorcon/preliminar yprogram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Scenarios: Tool for Monitored Natural Attenuation Evaluation T2 - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AN - 40098077; 4255464 JF - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Truex, M AU - Newell, C AU - Looney, B AU - Vangelas, K Y1 - 2006/05/22/ PY - 2006 DA - 2006 May 22 KW - Remediation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40098077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Structures+and+energies+of+AlOOH+and+FeOOH+polymorphs+from+plane+wave+pseudopotential+calculations&rft.au=Rosso%2C+Kevin+M%3BRustad%2C+James+R&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2001-03-01&rft.volume=86&rft.issue=3&rft.spage=312&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://www.battelle.org/environment/er/conferences/chlorcon/preliminar yprogram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Numerical Model Estimates of Contaminant Flux to Support Remediation Decisions T2 - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AN - 40098032; 4255458 JF - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Johnson, C D AU - Truex, M J AU - Wilson, R Y1 - 2006/05/22/ PY - 2006 DA - 2006 May 22 KW - Mathematical models KW - Bioremediation KW - Contaminants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40098032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fifth+International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Numerical+Model+Estimates+of+Contaminant+Flux+to+Support+Remediation+Decisions&rft.au=Johnson%2C+C+D%3BTruex%2C+M+J%3BWilson%2C+R&rft.aulast=Johnson&rft.aufirst=C&rft.date=2006-05-22&rft.volume=24&rft.issue=3-4&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ L2 - http://www.battelle.org/environment/er/conferences/chlorcon/preliminar yprogram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - In Situ Destruction of Trichloroethene during Electrical Resistance Heating at a DNAPL Site T2 - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AN - 40086768; 4255614 JF - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Truex, M AU - Powell, T AU - MacBeth, T AU - Sorenson, K AU - Lynch, K AU - Wilson, R Y1 - 2006/05/22/ PY - 2006 DA - 2006 May 22 KW - Nonaqueous phase liquids KW - Trichloroethene UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40086768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fifth+International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=In+Situ+Destruction+of+Trichloroethene+during+Electrical+Resistance+Heating+at+a+DNAPL+Site&rft.au=Truex%2C+M%3BPowell%2C+T%3BMacBeth%2C+T%3BSorenson%2C+K%3BLynch%2C+K%3BWilson%2C+R&rft.aulast=Truex&rft.aufirst=M&rft.date=2006-05-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fifth+International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ L2 - http://www.battelle.org/environment/er/conferences/chlorcon/preliminar yprogram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Flux Measurement at a Large Scale for DNAPL Characterization and Evaluation of Source Treatment T2 - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AN - 40008865; 4255410 JF - Fifth International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Truex, M AU - Vermeul, V AU - Johnson, C AU - Brooks, M AU - Wood, L AU - Wilson, R Y1 - 2006/05/22/ PY - 2006 DA - 2006 May 22 KW - Nonaqueous phase liquids UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40008865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Biotransformation+of+Ni-substituted+hydrous+ferric+oxide+by+an+Fe%28III%29-reducing+bacterium.&rft.au=Fredrickson%2C+J+K%3BZachara%2C+J+M%3BKukkadapu%2C+R+K%3BGorby%2C+Y+A%3BSmith%2C+S+C%3BBrown%2C+C+F&rft.aulast=Fredrickson&rft.aufirst=J&rft.date=2001-02-15&rft.volume=35&rft.issue=4&rft.spage=703&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ L2 - http://www.battelle.org/environment/er/conferences/chlorcon/preliminar yprogram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quantitative MR Imaging of @@u3@He Gas Transport in Model Airways T2 - 14th Scientific Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2006) AN - 40099441; 4243251 JF - 14th Scientific Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2006) AU - Minard, Kevin R AU - Jacob, Richard E Y1 - 2006/05/06/ PY - 2006 DA - 2006 May 06 KW - Magnetic resonance imaging KW - Respiratory tract KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40099441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=14th+Scientific+Meeting+and+Exhibition+of+the+International+Society+for+Magnetic+Resonance+in+Medicine+%28ISMRM+2006%29&rft.atitle=Quantitative+MR+Imaging+of+%40%40u3%40He+Gas+Transport+in+Model+Airways&rft.au=Minard%2C+Kevin+R%3BJacob%2C+Richard+E&rft.aulast=Minard&rft.aufirst=Kevin&rft.date=2006-05-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=14th+Scientific+Meeting+and+Exhibition+of+the+International+Society+for+Magnetic+Resonance+in+Medicine+%28ISMRM+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ismrm.org/06/2006_program.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - NMR Microscopy of Dental Biofilm Metabolism T2 - 14th Scientific Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2006) AN - 40007672; 4245822 JF - 14th Scientific Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2006) AU - Majors, Paul D AU - McLean, Jeffrey S AU - Wind, Robert A Y1 - 2006/05/06/ PY - 2006 DA - 2006 May 06 KW - N.M.R. KW - Metabolism KW - Biofilms KW - Microscopy KW - Teeth UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40007672?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=14th+Scientific+Meeting+and+Exhibition+of+the+International+Society+for+Magnetic+Resonance+in+Medicine+%28ISMRM+2006%29&rft.atitle=NMR+Microscopy+of+Dental+Biofilm+Metabolism&rft.au=Majors%2C+Paul+D%3BMcLean%2C+Jeffrey+S%3BWind%2C+Robert+A&rft.aulast=Majors&rft.aufirst=Paul&rft.date=2006-05-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=14th+Scientific+Meeting+and+Exhibition+of+the+International+Society+for+Magnetic+Resonance+in+Medicine+%28ISMRM+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ismrm.org/06/2006_program.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Phosphoproteome profiling of human skin fibroblast cells in response to low- and high-dose irradiation. AN - 67933891; 16674116 AB - A hallmark of the response to high-dose radiation is the up-regulation and phosphorylation of proteins involved in cell cycle checkpoint control, DNA damage signaling, DNA repair, and apoptosis. Exposure of cells to low doses of radiation has well documented biological effects, but the underlying regulatory mechanisms are still poorly understood. The objective of this study is to provide an initial profile of the normal human skin fibroblast (HSF) phosphoproteome and explore potential differences between low- and high-dose irradiation responses at the protein phosphorylation level. Several techniques including Trizol extraction of proteins, methylation of tryptic peptides, enrichment of phosphopeptides with immobilized metal affinity chromatography (IMAC), nanoflow reversed-phase HPLC (nano-LC)/electrospray ionization, and tandem mass spectrometry were combined for analysis of the HSF cell phosphoproteome. Among 494 unique phosphopeptides, 232 were singly phosphorylated, while 262 peptides had multiple phosphorylation sites indicating the overall effectiveness of the IMAC technique to enrich both singly and multiply phosphorylated peptides. We observed approximately 1.9-fold and approximately 3.6-fold increases in the number of identified phosphopeptides in low-dose and high-dose samples respectively, suggesting both radiation levels stimulate cell signaling pathways. A 6-fold increase in the phosphorylation of cyclin dependent kinase (cdk) motifs was observed after low- dose irradiation, while high-dose irradiation stimulated phosphorylation of 3-phosphoinositide-dependent protein kinase-1 (PDK1) and AKT/RSK motifs 8.5- and 5.5-fold, respectively. High- dose radiation resulted in the increased phosphorylation of proteins involved in cell signaling pathways as well as apoptosis while low-dose and control phosphoproteins were broadly distributed among biological processes. JF - Journal of proteome research AU - Yang, Feng AU - Stenoien, David L AU - Strittmatter, Eric F AU - Wang, Junhua AU - Ding, Lianghao AU - Lipton, Mary S AU - Monroe, Matthew E AU - Nicora, Carrie D AU - Gristenko, Marina A AU - Tang, Keqi AU - Fang, Ruihua AU - Adkins, Joshua N AU - Camp, David G AU - Chen, David J AU - Smith, Richard D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA. Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 1252 EP - 1260 VL - 5 IS - 5 SN - 1535-3893, 1535-3893 KW - Phosphoproteins KW - 0 KW - 3-Phosphoinositide-Dependent Protein Kinases KW - EC 2.7.11.1 KW - Oncogene Protein v-akt KW - PDPK1 protein, human KW - Protein-Serine-Threonine Kinases KW - Cyclin-Dependent Kinases KW - EC 2.7.11.22 KW - Index Medicus KW - Cyclin-Dependent Kinases -- metabolism KW - Spectrometry, Mass, Electrospray Ionization KW - Protein Biosynthesis KW - Protein-Serine-Threonine Kinases -- metabolism KW - Cyclin-Dependent Kinases -- radiation effects KW - Humans KW - Amino Acid Sequence KW - Dose-Response Relationship, Radiation KW - Signal Transduction -- radiation effects KW - Phosphorylation KW - Oncogene Protein v-akt -- metabolism KW - Amino Acid Motifs KW - Cells, Cultured KW - Chromatography, High Pressure Liquid -- methods KW - Molecular Sequence Data KW - Mass Spectrometry -- methods KW - Oncogene Protein v-akt -- radiation effects KW - Protein-Serine-Threonine Kinases -- radiation effects KW - Chromatography, Affinity -- methods KW - Proteomics -- methods KW - Phosphoproteins -- genetics KW - Phosphoproteins -- analysis KW - Phosphoproteins -- radiation effects KW - Fibroblasts -- radiation effects KW - Fibroblasts -- metabolism KW - Phosphoproteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67933891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Pressure+Vessel+Technology.+Transactions+of+the+ASME&rft.atitle=Life+Prediction+and+Monitoring+of+Nuclear+Power+Plant+Components+for+Service-Related+Degradation&rft.au=Simonen%2C+F+A%3BGosselin&rft.aulast=Simonen&rft.aufirst=F&rft.date=2001-02-01&rft.volume=123&rft.issue=1&rft.spage=58&rft.isbn=&rft.btitle=&rft.title=Journal+of+Pressure+Vessel+Technology.+Transactions+of+the+ASME&rft.issn=00949930&rft_id=info:doi/10.1115%2F1.1344237 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-07-14 N1 - Date created - 2006-05-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Chemical bonding and electronic structures of the Al (sub 2) SiO (sub 5) polymorphs, andalusite, sillimanite, and kyanite; X-ray photoelectron- and electron energy loss spectroscopy studies AN - 51573364; 2006-053764 AB - We have undertaken a detailed analysis of the X-ray photoelectron spectra obtained from the three polymorphs of Al (sub 2) SiO (sub 5) ; andalusite, sillimanite, and kyanite. Comparison of the spectra was made based on the chemical bonding and structural differences in the Al- and Si-coordination within each polymorph. The spectra for Si(2p) for all three polymorphs are nearly identical, consistent with the fact that all the Si atoms are in 4-fold (tetrahedral) coordination, whereas the binding energies, peak shapes, and peak widths for Al(2p) vary depending on the type of polymorph. The upper-valence band for all three polymorphs is characterized by four main features derived from O(2p), Al(3s), Al(2p), Si(3s), and Si(3p), and the differences in their contributions are observed. The density of state of the Al (sub 2) SiO (sub 5) polymorphs is relatively featureless compared to those observed from alpha -SiO (sub 2) and alpha -Al (sub 2) O (sub 3) , suggesting that the orbital overlaps span a greater range in energy. The observed band gap energy for Al (sub 2) SiO (sub 5) (sillimanite) was approximately 9.1eV, a value in between those for alpha -SiO (sub 2) ( approximately 8.6eV) and alpha -Al (sub 2) O (sub 3) ( approximately 9.6eV). The conduction band feature of Al (sub 2) SiO (sub 5) was experimentally compared to those of alpha -SiO (sub 2) and alpha -Al (sub 2) O (sub 3) , and shown that it is indeed intermediate between the alpha -SiO (sub 2) and alpha -Al (sub 2) O (sub 3) phases. JF - American Mineralogist AU - Ohuchi, Fumio S AU - Ghose, Subrata AU - Engelhard, Mark H AU - Baer, Donald R Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 740 EP - 746 PB - Mineralogical Society of America, Washington, DC VL - 91 IS - 5-6 SN - 0003-004X, 0003-004X KW - silicates KW - andalusite KW - silica minerals KW - sillimanite KW - kyanite KW - crystal structure KW - bonding KW - corundum KW - X-ray spectra KW - nesosilicates KW - polymorphism KW - orthosilicates KW - quartz KW - oxides KW - framework silicates KW - valency KW - spectra KW - crystal chemistry KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51573364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Chemical+bonding+and+electronic+structures+of+the+Al+%28sub+2%29+SiO+%28sub+5%29+polymorphs%2C+andalusite%2C+sillimanite%2C+and+kyanite%3B+X-ray+photoelectron-+and+electron+energy+loss+spectroscopy+studies&rft.au=Ohuchi%2C+Fumio+S%3BGhose%2C+Subrata%3BEngelhard%2C+Mark+H%3BBaer%2C+Donald+R&rft.aulast=Ohuchi&rft.aufirst=Fumio&rft.date=2006-05-01&rft.volume=91&rft.issue=5-6&rft.spage=740&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2006.1887 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - andalusite; bonding; corundum; crystal chemistry; crystal structure; framework silicates; kyanite; nesosilicates; orthosilicates; oxides; polymorphism; quartz; silica minerals; silicates; sillimanite; spectra; valency; X-ray spectra DO - http://dx.doi.org/10.2138/am.2006.1887 ER - TY - JOUR T1 - Identification of isotopically primitive interplanetary dust particles; a nanoSIMS isotopic imaging study AN - 51387849; 2007-086921 AB - We have carried out a comprehensive survey of the isotopic compositions (H, B, C, N, O, and S) of a suite of interplanetary dust particles (IDPs), including both cluster and individual particles. Isotopic imaging with the NanoSIMS shows the presence of numerous discrete hotspots that are strongly enriched in (super 15) N, up to approximately 1300ppm. A number of the IDPs also contain larger regions with more modest enrichments in (super 15) N, leading to average bulk N isotopic compositions that are (super 15) N-enriched in these IDPs. Although C isotopic compositions are normal in most of the IDPs, two (super 15) N-rich hotspots have correlated (super 13) C anomalies. CN (super -) /C (super -) ratios suggest that most of the (super 15) N-rich hotspots are associated with relatively N-poor carbonaceous matter, although specific carriers have not been determined. H isotopic distributions are similar to those of N: D anomalies are present both as distinct D-rich hotspots and as larger regions with more modest enrichments. Nevertheless, H and N isotopic anomalies are not directly correlated, consistent with results from previous studies. Oxygen isotopic imaging shows the presence of abundant presolar silicate grains in some of the IDPs. The O isotopic compositions of the grains are similar to those of presolar oxide and silicate grains from primitive meteorites. Most of the silicate grains in the IDPs have isotopic ratios consistent with meteoritic Group 1 oxide grains, indicating origins in oxygen-rich red giant and asymptotic giant branch stars, but several presolar silicates exhibit the (super 17) O and (super 18) O enrichments of Group 4 oxide grains, whose origin is less well understood. Based on their N isotopic compositions, the IDPs studied here can be divided into two groups. One group is characterized as being "isotopically primitive" and consists of those IDPs that have anomalous bulk N isotopic compositions. These particles typically also contain numerous (super 15) N-rich hotspots, occasional C isotopic anomalies, and abundant presolar silicate grains. In contrast, the other "isotopically normal" IDPs have normal bulk N isotopic compositions and, although some contain (super 15) N-rich hotspots, none exhibit C isotopic anomalies and none contain presolar silicate or oxide grains. Thus, isotopically interesting IDPs can be identified and selected on the basis of their bulk N isotopic compositions for further study. However, this distinction does not appear to extend to H isotopic compositions. Although both H and N anomalies are frequently attributed to the survival of molecular cloud material in IDPs and, thus, should be more common in IDPs with anomalous bulk N compositions, D anomalies are as common in normal IDPs as they are in those characterized as isotopically primitive, based on their N isotopes. JF - Geochimica et Cosmochimica Acta AU - Floss, Christine AU - Stadermann, Frank J AU - Bradley, John P AU - Dai, Zhu Rong AU - Bajt, Sasa AU - Graham, Giles AU - Lea, A Scott Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 2371 EP - 2399 PB - Elsevier, New York, NY VL - 70 IS - 9 SN - 0016-7037, 0016-7037 KW - imagery KW - oxygen KW - ion probe data KW - isotopes KW - enrichment KW - mass spectra KW - techniques KW - interplanetary dust KW - stable isotopes KW - nitrogen KW - meteorites KW - mineral composition KW - carbon KW - spectra KW - chemical composition KW - geochemistry KW - N-15/N-14 KW - textures KW - isotope ratios KW - C-13/C-12 KW - cosmochemistry KW - anomalies KW - O-18/O-16 KW - measurement KW - S-34/S-32 KW - D/H KW - hydrogen KW - sulfur KW - SEM data KW - particles KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51387849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Identification+of+isotopically+primitive+interplanetary+dust+particles%3B+a+nanoSIMS+isotopic+imaging+study&rft.au=Floss%2C+Christine%3BStadermann%2C+Frank+J%3BBradley%2C+John+P%3BDai%2C+Zhu+Rong%3BBajt%2C+Sasa%3BGraham%2C+Giles%3BLea%2C+A+Scott&rft.aulast=Floss&rft.aufirst=Christine&rft.date=2006-05-01&rft.volume=70&rft.issue=9&rft.spage=2371&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2006.01.023 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 109 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables, 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anomalies; C-13/C-12; carbon; chemical composition; cosmochemistry; D/H; enrichment; geochemistry; hydrogen; imagery; interplanetary dust; ion probe data; isotope ratios; isotopes; mass spectra; measurement; meteorites; mineral composition; N-15/N-14; nitrogen; O-18/O-16; oxygen; particles; S-34/S-32; SEM data; spectra; stable isotopes; sulfur; techniques; textures DO - http://dx.doi.org/10.1016/j.gca.2006.01.023 ER - TY - JOUR T1 - Characterization of the specific solid-water interfacial area-water saturation relationship and its import to reactive transport AN - 51128189; 2006-056728 AB - A modified rate equation for the dissolution of minerals in the unsaturated zone was proposed using a specific solid-water interfacial area (a (sub sw) ) varying as a function of water saturation (S (sub w) ). Vadose zone phenomena, such as infiltration, were discussed as example scenarios where such reformulation may be useful. A constitutive relationship for the a (sub sw) -S (sub w) was derived, and used to formulate an approximate model of the proposed rate equation. Implementation of this new model in the reactive transport code CRUNCH was used to evaluate the influence of a changing a (sub sw) on reactive transport behavior of silica in the vadose zone. These simulations clearly demonstrate that a changing a (sub sw) can have a significant impact on the silica distribution profiles in the vadose zone. This is to be expected because changes in a (sub sw) are substantial in the dry S (sub w) range, whereas they are only moderate in the relatively wet region. These findings have significant implications for contaminant transport in the vadose zone, especially in arid regions. Ignoring the effect of a changing a (sub sw) is likely to result in an overestimation of the net contaminant fluxes in these cases, which leads to highly conservative risk assessments. In case of nutrient flux calculations coupled with dissolution phenomena, it may lead to an overestimation of nutrient availability. Additional theoretical and experimental verification of the proposed models would be valuable. JF - Vadose Zone Journal AU - Saripalli, K Prasad AU - Freedman, V L AU - McGrail, B P AU - Meyer, P D Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 777 EP - 783 PB - Soil Science Society of America, Madison, WI VL - 5 IS - 2 KW - United States KW - silicates KW - silica minerals KW - solid-water interface KW - one-dimensional models KW - moisture KW - data processing KW - unsaturated zone KW - solution KW - simulation KW - CRUNCH KW - theoretical studies KW - reactivity KW - transport KW - retention KW - framework silicates KW - water pollution KW - water KW - soils KW - Washington KW - pollution KW - Hanford Site KW - rates KW - advection KW - solid phase KW - nutrients KW - computer programs KW - saturation KW - soil pollution KW - infiltration KW - quartz KW - constitutive equations KW - hydraulic conductivity KW - waste disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51128189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Characterization+of+the+specific+solid-water+interfacial+area-water+saturation+relationship+and+its+import+to+reactive+transport&rft.au=Lea%2C+A+S%3BAmonette%2C+J+E%3BBaer%2C+D+R%3BLiang%2C+Y%3BColton%2C+N+G&rft.aulast=Lea&rft.aufirst=A&rft.date=2001-02-01&rft.volume=65&rft.issue=3&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2800%2900531-7 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 27 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - advection; computer programs; constitutive equations; CRUNCH; data processing; framework silicates; Hanford Site; hydraulic conductivity; infiltration; moisture; nutrients; one-dimensional models; pollution; quartz; rates; reactivity; retention; saturation; silica minerals; silicates; simulation; soil pollution; soils; solid phase; solid-water interface; solution; theoretical studies; transport; United States; unsaturated zone; Washington; waste disposal; water; water pollution DO - http://dx.doi.org/10.2136/vzj2005.0145 ER - TY - JOUR T1 - A review of multidimensional, multifluid intermediate-scale experiments; nonaqueous phase liquid dissolution and enhanced remediation AN - 51125578; 2006-056711 AB - A review is presented of original multidimensional, intermediate-scale experiments involving NAPLs (nonaqueous phase liquids). The experimental approach at this scale can be viewed as an important intermediary between column studies and field trials. The primary advantage of intermediate-scale flow cell experiments is that field-scale processes can be simulated under controlled conditions. The experiments are frequently conducted to provide data sets to test and verify numerical and analytical flow and transport models. The controlled setting and laboratory instrumentation reduces the uncertainty in parameter estimation, allowing comparisons between simulation and experimental results to focus on flow and transport processes. A total of about 125 original contributions were identified and reviewed. Depending on the main topic of NAPL experimental research, the papers were divided into the following sections: (i) aqueous dissolution, (ii) enhanced remediation, (iii) flow behavior, (iv) quantification, and (v) imaging. In this review, the first two categories are discussed and suggestions for future research are provided. In a companion review, experimental work related to the other three categories is investigated. The aqueous dissolution category includes experiments in which pooled and entrapped NAPL removal occurs due to water flushing. The enhanced remediation section contains experimental contributions investigating surfactant flushing, alcohol flushing, surfactant and alcohol flushing combinations, dense brine strategies, hydraulic NAPL recovery, soil vapor extraction, air sparging, heat-based remediation, bioremediation, and other techniques. JF - Vadose Zone Journal AU - Oostrom, Mart AU - Dane, J H AU - Wietsma, T W Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 570 EP - 598 PB - Soil Science Society of America, Madison, WI VL - 5 IS - 2 KW - chlorinated hydrocarbons KW - unsaturated zone KW - trichloroethane KW - techniques KW - tetrachloroethylene KW - solution KW - remediation KW - hydrologic cycle KW - scale models KW - transport KW - quantitative analysis KW - soil flushing KW - movement KW - halogenated hydrocarbons KW - water pollution KW - hydrology KW - tetrachloroethane KW - experimental studies KW - pollutants KW - pollution KW - current research KW - nonaqueous phase liquids KW - models KW - organic compounds KW - soil pollution KW - surfactants KW - trichloroethylene KW - review KW - image analysis KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51125578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+review+of+multidimensional%2C+multifluid+intermediate-scale+experiments%3B+nonaqueous+phase+liquid+dissolution+and+enhanced+remediation&rft.au=Oostrom%2C+Mart%3BDane%2C+J+H%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=Mart&rft.date=2006-05-01&rft.volume=5&rft.issue=2&rft.spage=570&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2005.0125 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 118 N1 - PubXState - WI N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chlorinated hydrocarbons; current research; experimental studies; halogenated hydrocarbons; hydrologic cycle; hydrology; image analysis; models; movement; nonaqueous phase liquids; organic compounds; pollutants; pollution; quantitative analysis; remediation; review; scale models; soil flushing; soil pollution; solution; surfactants; techniques; tetrachloroethane; tetrachloroethylene; transport; trichloroethane; trichloroethylene; unsaturated zone; water pollution DO - http://dx.doi.org/10.2136/vzj2005.0125 ER - TY - JOUR T1 - An air-water interfacial area based variable tortuosity model for unsaturated sands AN - 51125280; 2006-056727 AB - A new variable tortuosity definition is introduced that is based on the immiscible fluid (air-water) interfacial area. Unsaturated media tortuosity (tau (sub a) ) is defined as the ratio of a (sub aw) to a (sub aw,o) where a (sub aw) is the estimated air-water interfacial area in a real unsaturated medium (i.e., a soil sample), and a (sub aw,o) is the same variable for the corresponding, idealized capillary bundle. The air-water interfacial area for both real and idealized media is directly proportional to the area under their respective retention curves. With tau being the saturated tortuosity, we relate the variable tortuosity ratio (tau /tau (sub a) ) to the S (sub e) (super epsilon ) term in Mualem's (epsilon = 0.5) and Burdine's (epsilon = 2) pore-size distribution models. Thus, instead of using tortuosity and pore connectivity formulations, which have empirical exponents of either 0.5 or 2, the new model depends on a variable interfacial area for varying saturation and soil texture, as reflected in the measured retention data. We tested the new definition of tortuosity to predict unsaturated hydraulic conductivity, K, as a function of volumetric moisture content, theta , for 22 repacked Hanford sediments that are comprised of mostly coarse and fine sands but some also contain a sizeable fraction (as high as 27%) of fines (silt and clay). Replacing the S (sub e) (super epsilon ) term in van Genuchten-Mualem (VGM) model by the tortuosity ratio tau /tau (sub a) , and still using saturated hydraulic conductivity and moisture retention parameters as used in the conventional approach, we obtained tau (sub a) -based K(theta ) predictions that are nearly identical to the conventional VGM model predictions. We also compared the tau (sub a) -based K(theta ) predictions with the standard Brooks-Corey-Burdine (BCB) model predictions. In comparison to the VGM model predictions, tau (sub a) -based BCB K(theta ) predictions appear to be less biased relative to the measured K for the coarse-textured samples. JF - Vadose Zone Journal AU - Khaleel, Raziuddin AU - Saripalli, K Prasad Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 764 EP - 776 PB - Soil Science Society of America, Madison, WI VL - 5 IS - 2 KW - United States KW - capillary pressure KW - moisture KW - unsaturated zone KW - desaturation KW - quantitative analysis KW - sediments KW - retention KW - Brooks-Corey function KW - soils KW - sand KW - van Genuchten model KW - Washington KW - air-water interface KW - van Genuchten-Mualem model KW - clastic sediments KW - drainage KW - Brooks-Corey-Burdine model KW - connectivity KW - tortuosity KW - Hanford Site KW - measurement KW - immiscibility KW - hydraulic conductivity KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51125280?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=An+air-water+interfacial+area+based+variable+tortuosity+model+for+unsaturated+sands&rft.au=Khaleel%2C+Raziuddin%3BSaripalli%2C+K+Prasad&rft.aulast=Khaleel&rft.aufirst=Raziuddin&rft.date=2006-05-01&rft.volume=5&rft.issue=2&rft.spage=764&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2005.0129 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 40 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - air-water interface; Brooks-Corey function; Brooks-Corey-Burdine model; capillary pressure; clastic sediments; connectivity; desaturation; drainage; Hanford Site; hydraulic conductivity; immiscibility; measurement; moisture; quantitative analysis; retention; sand; sediments; soils; tortuosity; United States; unsaturated zone; van Genuchten model; van Genuchten-Mualem model; Washington DO - http://dx.doi.org/10.2136/vzj2005.0129 ER - TY - JOUR T1 - Vadose Zone Journal AN - 51124925; 2006-056732 JF - Vadose Zone Journal AU - Gee, G W AU - Benson, C H AU - Albright, W H Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 809 EP - 812 PB - Soil Science Society of America, Madison, WI VL - 5 IS - 2 KW - United States KW - soils KW - hydrology KW - terrestrial environment KW - moisture KW - arid environment KW - landfills KW - drainage KW - semi-arid environment KW - waste disposal sites KW - unsaturated zone KW - capillary barriers KW - vegetation KW - Southwestern U.S. KW - evapotranspiration KW - climate change KW - infiltration KW - waste disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51124925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Vadose+Zone+Journal&rft.au=Gee%2C+G+W%3BBenson%2C+C+H%3BAlbright%2C+W+H&rft.aulast=Gee&rft.aufirst=G&rft.date=2006-05-01&rft.volume=5&rft.issue=2&rft.spage=809&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2005.0090 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 16 N1 - PubXState - WI N1 - Document feature - illus. N1 - SuppNotes - For reference to reply see Scanlon, B. R. et. al., Vadose Zone Journal, Vol. 5, No. 2, p. 813-814, DOI: 10.2136/vzj2006.0010 2006; for reference to original see Scanlon, B. R., et. al., Vadose Zone Journal, Vol. 4, No. 1, p. 55-71, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arid environment; capillary barriers; climate change; drainage; evapotranspiration; hydrology; infiltration; landfills; moisture; semi-arid environment; soils; Southwestern U.S.; terrestrial environment; United States; unsaturated zone; vegetation; waste disposal; waste disposal sites DO - http://dx.doi.org/10.2136/vzj2005.0090 ER - TY - BOOK T1 - Automated Web-based Monitoring of a Pump and Treat System at the Hanford Site AN - 20923182; 7425337 AB - Automated and autonomous monitoring of environmental conditions can be used to improve operational efficiency, verify remedial action decisions, and promote confidence in the monitoring process by making data and associated derived information readily accessible to regulators and stakeholders. Ultimately autonomous monitoring systems can reduce overall costs associated with regulatory compliance of performance and long- term monitoring. As part of a joint decision between DOE and the WA Department of Ecology to put on "cold standby" a pump and treat system that has been operating on the Department of Energys Hanford site in Washington State since 1995, a web site was developed to display the automated water level network around the pump and treat system. The automated water level network consists of nineteen wells with water level transducers and temperature and conductivity probes for selected wells. Data from this network will be used to evaluate the impacts of the pump-and-treat system and the response of the aquifer to shutdown of the system. The website will provide access to data from the automated network along with additional information pertaining to the shutdown of the pump and treat system to the various stakeholders in a convenient and timely fashion. This will allow the various stakeholders to observe the impacts of the shutdown as the aquifer responds. There are future plans to expand this web-based data reporting platform to other environmental data that pertains to the various remedial actions planned at the Hanford site. The benefits of the web site application for monitoring and stewardship are: consistency of data processing and analyses with automated and on demand data and information delivery. The system and data access is password controlled and access to various data or fields can be restricted to specified users. An important feature is that the stakeholders have access to the data in near-real time providing a checks-and-balance system that can potentially increase confidence in the remedy selection. JF - Proceedings of the 2006 American Geophysical Union Joint Assembly AU - Webber, W AU - Versteeg, R AU - Richardson, A AU - Ankeny, M AU - Gilmore, T AU - Morse, J AU - Thompson, M Y1 - 2006/05// PY - 2006 DA - May 2006 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [URL:http://www.agu.org] KW - Water Resources Abstracts KW - H42B-02 INVITED KW - Aquifers KW - USA, Washington KW - Networks KW - Temperature KW - Automation KW - Remedies KW - Pumps KW - Water Level KW - Monitoring KW - Groundwater KW - USA, Washington, Hanford Site KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20923182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Water+Resources+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Webber%2C+W%3BVersteeg%2C+R%3BRichardson%2C+A%3BAnkeny%2C+M%3BGilmore%2C+T%3BMorse%2C+J%3BThompson%2C+M&rft.aulast=Webber&rft.aufirst=W&rft.date=2006-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Automated+Web-based+Monitoring+of+a+Pump+and+Treat+System+at+the+Hanford+Site&rft.title=Automated+Web-based+Monitoring+of+a+Pump+and+Treat+System+at+the+Hanford+Site&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-12-01 N1 - Last updated - 2016-12-21 ER - TY - JOUR T1 - Tagging Juvenile Pacific Lamprey with Passive Integrated Transponders: Methodology, Short-Term Mortality, and Influence on Swimming Performance AN - 20722393; 6909867 AB - This study was conducted to determine the feasibility (i.e., efficiency and nonintrusiveness) of tagging juvenile Pacific lampreys Lampetra tridentata with passive integrated transponder (PIT) tags and to determine any associated impacts on survivorship and swimming ability. Juvenile Pacific lampreys were obtained from the John Day Dam fish collection facility and tests were conducted at the Pacific Northwest National Laboratory in 2001 and 2002. A new PIT-tagging procedure was used to inject 12-mm tags 5 mm posterior to the gill openings. Lampreys were allowed to recover for 3-4 d following surgery before postmortality and swimming tests were conducted. The PIT tagging procedure during 2001 did not include a suture, and 2.6% of the tags were shed after 40 d. During 2002 a single suture was used to close the opening after inserting a tag, and no tag shedding was observed. Overall short-term mortality rates for lampreys 120-155 mm (total length) held for 40 d at 8 degree C was 2.2% for tagged and 2.7% for untagged fish. Mortality increased significantly when tagged and untagged groups were held in warmer (19-23 degree C) river water: 50% for tagged and 60% for untagged animals. Lengths did not significantly affect survival for either the tagged or untagged group held in warm water. A fungal infection was observed to be the cause of death when water temperature increased. Swimming tests to determine any adverse effects due to tag insertion showed no significant difference (P = 0.12) between tagged and untagged lampreys for mean burst speed; however, maximum burst speeds were significantly lower for the PIT-tagged group. JF - North American Journal of Fisheries Management AU - Mueller, Robert P AU - Moursund, Russell A AU - Bleich, Matthew D AD - Pacific Northwest National Laboratory, Post Office Box 999, Richland, Washington 99354, USA Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 361 EP - 366 PB - American Fisheries Society, 5410 Grosvenor Ln. Ste. 110 Bethesda MD 20814-2199 USA VL - 26 IS - 2 SN - 0275-5947, 0275-5947 KW - Lampreys KW - Pacific lamprey KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Lampetra tridentata KW - Survival KW - Infection KW - INE, USA, Pacific Northwest KW - Petromyzontidae KW - Fishery management KW - Surgery KW - Body size KW - Tagging KW - USA, Columbia R., John Day Dam KW - Gills KW - Transponders KW - Rivers KW - Marine KW - Mortality KW - Juveniles KW - Swimming KW - Sutures KW - Environmental impact KW - Water temperature KW - Biotelemetry KW - Methodology KW - Drag KW - Tags KW - Side effects KW - Mortality causes KW - Q5 08504:Effects on organisms KW - O 5020:Fisheries and Fishery Biology KW - Q1 08604:Stock assessment and management KW - K 03420:Plant Diseases KW - D 04060:Management and Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20722393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Tagging+Juvenile+Pacific+Lamprey+with+Passive+Integrated+Transponders%3A+Methodology%2C+Short-Term+Mortality%2C+and+Influence+on+Swimming+Performance&rft.au=Mueller%2C+Robert+P%3BMoursund%2C+Russell+A%3BBleich%2C+Matthew+D&rft.aulast=Mueller&rft.aufirst=Robert&rft.date=2006-05-01&rft.volume=26&rft.issue=2&rft.spage=361&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/10.1577%2FM05-017.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Juveniles; Swimming; Environmental impact; Survival; Biotelemetry; Drag; Methodology; Tags; Fishery management; Body size; Tagging; Mortality causes; Transponders; Rivers; Mortality; Sutures; Surgery; Water temperature; Infection; Gills; Side effects; Petromyzontidae; Lampetra tridentata; USA, Columbia R., John Day Dam; INE, USA, Pacific Northwest; Marine DO - http://dx.doi.org/10.1577/M05-017.1 ER - TY - JOUR T1 - Physically Based Global Downscaling: Climate Change Projections for a Full Century AN - 20610106; 6808302 AB - A global atmosphere-land model with an embedded subgrid orography scheme is used to simulate the period 1977-2100 using ocean surface conditions and radiative constituent concentrations for a climate change scenario. Climate variables simulated for multiple elevation classes are mapped according to a high-resolution elevation dataset in 10 regions with complex terrain. Analysis of changes in the simulated climate leads to the following conclusions. Changes in surface air temperature and precipitation differ from region to region in a manner similar to simulations without the subgrid scheme. Subgrid elevation contributes little to spatial variability of the change in temperature and the relative change in precipitation. In some regions somewhat greater warming occurs at higher elevations because of the same tendency in the free troposphere, but in others greater warming occurs near the melting level where snow albedo feedback amplifies the warming. Changes in snow water are highly dependent on altitude because of its nonlinear dependence on changes in the melting level. Absolute changes usually increase with altitude because more snow is currently available for depletion, but for extremely cold conditions the simulated warming is insufficient to increase melting. Relative changes in snow water always decrease with altitude as the likelihood that a warming will enhance melting or change the phase of precipitation decreases with decreasing temperature at higher altitudes. In places where snow accumulates, an artificial upper bound on snow water (which is required in any climate model that does not treat lateral snow transport) limits the sensitivity of snow water to climate change considerably. The simulated impact of climate change on regional mean snow water varies widely, with little impact in regions in which the upper bound on snow water is the dominant snow-water sink, moderate impact in regions with a mixture of seasonal and pemanent snow, and profound relative impacts on regions with little permanent snow. JF - Journal of Climate AU - Ghan, S J AU - Shippert, T AD - Pacific Northwest National Laboratory, Mail Stop K9-30, P.O. Box 999, Richland, WA 99352, steveghan@pnl.gov Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 1589 EP - 1604 PB - American Meteorological Society VL - 19 IS - 9 SN - 0894-8755, 0894-8755 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - albedo KW - Historical account KW - Snow melting KW - air temperature KW - altitude KW - Rainfall KW - Climatic changes KW - Climate change KW - Sulfur dioxide KW - Seasonal variations KW - Spatial variability KW - Climate models KW - Snow KW - Albedo KW - Temperature KW - Troposphere KW - Simulation KW - Precipitation KW - Snow transport KW - Orography KW - Numerical simulations KW - Oceans KW - Temperature variability KW - Land-atmosphere interaction KW - Climate change scenarios KW - P 0000:AIR POLLUTION KW - M2 551.581:Latitudinal Influences (551.581) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20610106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Climate&rft.atitle=Physically+Based+Global+Downscaling%3A+Climate+Change+Projections+for+a+Full+Century&rft.au=Ghan%2C+S+J%3BShippert%2C+T&rft.aulast=Ghan&rft.aufirst=S&rft.date=2006-05-01&rft.volume=19&rft.issue=9&rft.spage=1589&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2FJCLI3701.1 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0894-8755&volume=19&page=1589 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Snow melting; Climate models; Numerical simulations; Albedo; Climate change; Temperature variability; Precipitation; Land-atmosphere interaction; Orography; Snow transport; Spatial variability; Climate change scenarios; albedo; Historical account; air temperature; Snow; Rainfall; altitude; Climatic changes; Temperature; Simulation; Troposphere; Sulfur dioxide; Oceans; Seasonal variations DO - http://dx.doi.org/10.1175/JCLI3701.1 ER - TY - JOUR T1 - Measurement of Helium Isotopes in Soil Gas as an Indicator of Tritium Groundwater Contamination AN - 20546793; 7035581 AB - The focus of this study was to define the shape and extent of tritium groundwater contamination emanating from a legacy burial ground and to identify vadose zone sources of tritium using helium isotopes ( super(3)He and super(4)He) in soil gas. Helium isotopes were measured in soil-gas samples collected from 70 sampling points around the perimeter and downgradient of a burial ground that contains buried radioactive solid waste. The soil-gas samples were analyzed for helium isotopes using rare gas mass spectrometry. super(3)He/ super(4)He ratios, reported as normalized to the air ratio (R sub(A)), were used to locate the tritium groundwater plume emanating from the burial ground. The super(3)He (excess) suggested that the general location of the tritium source is within the burial ground. This study clearly demonstrated the efficacy of the super(3)He method for application to similar sites elsewhere within the DOE weapons complex. JF - Environmental Science & Technology AU - Olsen, K B AU - Dresel, P E AU - Evans, J C AU - Mcmahon, W J AU - Poreda, R AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, USA, kb.olsen@pnl.gov Y1 - 2006/05/01/ PY - 2006 DA - 2006 May 01 SP - 2895 EP - 2902 VL - 40 IS - 9 SN - 0013-936X, 0013-936X KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Mass Spectrometry KW - Isotopes KW - Contamination KW - Environmental sciences KW - Mass spectrometry KW - Groundwater Pollution KW - Solid wastes KW - Sampling KW - Plumes KW - Soil Contamination KW - Vadose waters KW - Shape KW - Tritium KW - Helium KW - Groundwater pollution KW - M2 556.38:Groundwater Basins (556.38) KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20546793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Measurement+of+Helium+Isotopes+in+Soil+Gas+as+an+Indicator+of+Tritium+Groundwater+Contamination&rft.au=Olsen%2C+K+B%3BDresel%2C+P+E%3BEvans%2C+J+C%3BMcmahon%2C+W+J%3BPoreda%2C+R&rft.aulast=Olsen&rft.aufirst=K&rft.date=2006-05-01&rft.volume=40&rft.issue=9&rft.spage=2895&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes0518575 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Environmental sciences; Vadose waters; Mass spectrometry; Groundwater pollution; Helium; Isotopes; Contamination; Tritium; Plumes; Solid wastes; Shape; Mass Spectrometry; Soil Contamination; Groundwater Pollution; Sampling DO - http://dx.doi.org/10.1021/es0518575 ER - TY - JOUR T1 - Metal Reduction and Iron Biomineralization by a Psychrotolerant Fe(III)-Reducing Bacterium, Shewanella sp. Strain PV-4 AN - 19957038; 6812817 AB - A marine psychrotolerant, dissimilatory Fe(III)-reducing bacterium, Shewanella sp. strain PV-4, from the microbial mat at a hydrothermal vent of Loihi Seamount in the Pacific Ocean has been further characterized, with emphases on metal reduction and iron biomineralization. The strain is able to reduce metals such as Fe(III), Co(III), Cr(VI), Mn(IV), and U(VI) as electron acceptors while using lactate, formate, pyruvate, or hydrogen as an electron donor. Growth during iron reduction occurred over the pH range of 7.0 to 8.9, a sodium chloride range of 0.05 to 5%, and a temperature range of 0 to 37 degree C, with an optimum growth temperature of 18 degree C. Unlike mesophilic dissimilatory Fe(III)-reducing bacteria, which produce mostly superparamagnetic magnetite (35 nm) at temperatures from 18 to 37 degree C. The genome size of this strain is about 4.5 Mb. Strain PV-4 is sensitive to a variety of commonly used antibiotics except ampicillin and can acquire exogenous DNA (plasmid pCM157) through conjugation. JF - Applied and Environmental Microbiology AU - Roh, Yul AU - Gao, Haichun AU - Vali, Hojatollah AU - Kennedy, David W AU - Yang, Zamin K AU - Gao, Weimin AU - Dohnalkova, Alice C AU - Stapleton, Raymond D AU - Moon, Ji-Won AU - Phelps, Tommy J AU - Fredrickson, James K AU - Zhou, Jizhong AD - Oak Ridge National Laboratory, Oak Ridge, Tennessee. Chonnam National University, Gwangju, South Korea. Center for Microbial Ecology, Michigan State University, East Lansing, Michigan. McGill University, Montreal, Quebec, Canada. Pacific Northwest National Laboratory, Richland, Washington. Merck & Co., Inc., Elkton, Virginia. Institute for Environmental Genomics, Department of Botany and Microbiology, University of Oklahoma, Norman, Oklahoma 73019 Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 3236 EP - 3244 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 72 IS - 5 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts B: Bacteriology; ASFA Marine Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Temperature effects KW - Genomes KW - Bacteria KW - Metals KW - Conjugation KW - Heavy metals KW - Hydrothermal vents KW - Ampicillin KW - Antibiotics KW - Hydrogen KW - Mineralization KW - Plasmids KW - Shewanella KW - Pyruvic acid KW - Oceans KW - DNA KW - Lactic acid KW - pH effects KW - Iron KW - Sodium chloride KW - magnetite KW - A 01056:Mineral microbiology KW - Q4 27480:Environmental Applications/Impact KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19957038?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Metal+Reduction+and+Iron+Biomineralization+by+a+Psychrotolerant+Fe%28III%29-Reducing+Bacterium%2C+Shewanella+sp.+Strain+PV-4&rft.au=Roh%2C+Yul%3BGao%2C+Haichun%3BVali%2C+Hojatollah%3BKennedy%2C+David+W%3BYang%2C+Zamin+K%3BGao%2C+Weimin%3BDohnalkova%2C+Alice+C%3BStapleton%2C+Raymond+D%3BMoon%2C+Ji-Won%3BPhelps%2C+Tommy+J%3BFredrickson%2C+James+K%3BZhou%2C+Jizhong&rft.aulast=Roh&rft.aufirst=Yul&rft.date=2006-05-01&rft.volume=72&rft.issue=5&rft.spage=3236&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Genomes; Temperature effects; Metals; Conjugation; Heavy metals; Ampicillin; Hydrothermal vents; Antibiotics; Hydrogen; Plasmids; Mineralization; Pyruvic acid; Oceans; Lactic acid; DNA; Iron; pH effects; Sodium chloride; magnetite; Bacteria; Shewanella ER - TY - BOOK T1 - Tracer Tests and Field Monitoring of In situ Bioreduction of Cr(VI) Bioreduction at the Hanford 100H Site AN - 19887652; 7425396 AB - Tracer tests and field monitoring before, during, and after bio-immobilization of Cr(VI) in groundwater at the Hanford 100H field site have provided key data constraining the geohydrology and biogeochemistry of field- scale bioreduction. A slow release polylactate, Hydrogen Release Compound (HRCTM), was used to stimulate the in situ bioreduction and removal of Cr(VI) from groundwater. Monitoring included an extensive suite of field and laboratory techniques, as well as five Br-tracer injection tests and four pumping tests. To minimize drilling costs, a three-well system (injection well and upgradient and downgradient monitoring wells) was used for conducting the in situ biostimulation and monitoring. Pre-biostimulation Br-tracer tests demonstrated that low-flow pumping (1.2 to 2.5 l/min) on the down-gradient well was required to ensure capture of groundwater flow lines passing through the injection well (5 m from the downgradient pumping well). Detailed Br breakthrough curves were obtained using field-deployed Br ion-selective electrodes (Instrumentation Northwest, Inc.). We also used a multi-parameter flow cell (Hydrolab H2O Multiprobe) to collect hourly data on temperature, pH, redox potential, electrical conductivity, and dissolved oxygen (DO). Field measurements were used to enable repeat groundwater sampling by pumping through specially designed borehole water samplers. Following the HRC injection, the data demonstrated the temporal relationship between the Br arrival and onset of reducing conditions induced by the injection. For example, redox potential decreased from +240 to -130 mV while conductivity changed from similar to 510 muS/cm to similar to 850 muS/cm along with a complete removal of DO and a drop in pH. These changes occurred concomitantly with more than a 2- order of magnitude increase in microbial cell numbers. The pore- water conductivity changes were used to constrain interpretation of the results of cross-borehole radar tomography conducted prior to and after the HRC injection test. Radar tomography combined with seismic measurements appeared to be a valuable field technique in assessing the site lithological heterogeneity and the HRC migration through groundwater. Overall, our results indicate the value of combining frequent in-situ hydrogeological, geochemical and geophysical measurements with microbiological analytical analyses for obtaining data to control biostimulation and long- term natural monitored natural attenuation of Cr in groundwater. JF - Proceedings of the 2006 American Geophysical Union Joint Assembly AU - Long, P E AU - Newcomer, D R AU - Resch, C T AU - Cantrell, K AU - Faybishenko, B AU - Hazen, T C AU - Brodie, E AU - Joyner, D AU - Borglin, S AU - Conrad, M AU - Tokunaga, T AU - Wan, J AU - Hubbard, S AU - Williams, K H AU - Peterson, J E AU - Firestone, M AU - Andersen, G AU - DeSantis, T AU - Hanlon, J AU - Willett, A AU - Koenigsberg, S Y1 - 2006/05// PY - 2006 DA - May 2006 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [URL:http://www.agu.org] KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - H43D-01 KW - Temperature effects KW - Data processing KW - Cell number KW - Biogeochemistry KW - Drilling KW - Hydrogen KW - Samplers KW - Dissolved oxygen KW - Joints KW - Tracers KW - Electrical conductivity KW - Electrodes KW - Radar KW - Ground water KW - Tomography KW - Sampling KW - Water conductivity KW - Mus KW - pH effects KW - Redox potential KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19887652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Industrial+and+Applied+Microbiology+Abstracts+%28Microbiology+A%29&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Long%2C+P+E%3BNewcomer%2C+D+R%3BResch%2C+C+T%3BCantrell%2C+K%3BFaybishenko%2C+B%3BHazen%2C+T+C%3BBrodie%2C+E%3BJoyner%2C+D%3BBorglin%2C+S%3BConrad%2C+M%3BTokunaga%2C+T%3BWan%2C+J%3BHubbard%2C+S%3BWilliams%2C+K+H%3BPeterson%2C+J+E%3BFirestone%2C+M%3BAndersen%2C+G%3BDeSantis%2C+T%3BHanlon%2C+J%3BWillett%2C+A%3BKoenigsberg%2C+S&rft.aulast=Long&rft.aufirst=P&rft.date=2006-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Tracer+Tests+and+Field+Monitoring+of+In+situ+Bioreduction+of+Cr%28VI%29+Bioreduction+at+the+Hanford+100H+Site&rft.title=Tracer+Tests+and+Field+Monitoring+of+In+situ+Bioreduction+of+Cr%28VI%29+Bioreduction+at+the+Hanford+100H+Site&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-05-01 N1 - Last updated - 2015-03-30 ER - TY - BOOK T1 - In Situ Bioremediation of Uranium in a Heterogeneous Aquifer: Field-Scale Monitoring and Numerical Simulation AN - 19445947; 7425338 AB - A field experiment is being conducted at the Oak Ridge Reservation in Tennessee to evaluate biologically- mediated in situ immobilization of uranium in groundwater. Ethanol (as an electron donor) and a bromide tracer are being delivered by daily pulsed injection to a highly heterogeneous surficial aquifer, and the biogeochemical responses are being monitored over a period of several months. Monitoring methods include groundwater sampling (geochemical and microbial analyses), surface and tomographic electrical resistivity methods, in-well water level dataloggers, and post-experimental coring. Geochemical observations indicate that reduction of several terminal electron acceptors including nitrate, manganese, iron and sulfate has occurred. Concurrent decreases in dissolved uranium concentrations have also been observed, primarily in association with sulfate reduction. A numerical model of flow and reactive transport was developed to support experimental design and interpretation, supported by laboratory batch experiments using site sediments. Model predictions compare favorably with field observations indicating that the primary biogeochemical reactions and rates are reasonably well represented. Monitoring results suggest that the system is sensitive to uncharacterized local heterogeneity and transient flow features associated with seasonal recharge. JF - Proceedings of the 2006 American Geophysical Union Joint Assembly AU - Scheibe, T D AU - Brooks, S C AU - Roden, E E AU - Fang, Y AU - Kamolpornwijit, W Y1 - 2006/05// PY - 2006 DA - May 2006 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [URL:http://www.agu.org] KW - Meteorological & Geoastrophysical Abstracts; Biotechnology and Bioengineering Abstracts; Water Resources Abstracts KW - H42B-03 KW - Sulfates KW - Aquifers KW - Nitrate KW - Bioremediation KW - Coring KW - Sulfate reduction KW - bromides KW - Models KW - Water levels KW - Tracers KW - Numerical models KW - Uranium in groundwater KW - Uranium KW - Ground water KW - Sampling KW - Heterogeneity KW - Manganese KW - Ethanol KW - Water Level KW - USA, Tennessee, Oak Ridge Reservation KW - Sediments KW - Model Studies KW - Joints KW - USA, Tennessee KW - Numerical simulations KW - Groundwater KW - Monitoring KW - Iron KW - Immobilization KW - W 30910:Imaging KW - M2 556.38:Groundwater Basins (556.38) KW - SW 7060:Research facilities UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19445947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Scheibe%2C+T+D%3BBrooks%2C+S+C%3BRoden%2C+E+E%3BFang%2C+Y%3BKamolpornwijit%2C+W&rft.aulast=Scheibe&rft.aufirst=T&rft.date=2006-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=In+Situ+Bioremediation+of+Uranium+in+a+Heterogeneous+Aquifer%3A+Field-Scale+Monitoring+and+Numerical+Simulation&rft.title=In+Situ+Bioremediation+of+Uranium+in+a+Heterogeneous+Aquifer%3A+Field-Scale+Monitoring+and+Numerical+Simulation&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-06-01 N1 - Last updated - 2016-12-21 ER - TY - JOUR T1 - ProMAT: protein microarray analysis tool AN - 19441894; 6815027 AB - SUMMARY: ProMAT is a software tool for statistically analyzing data from enzyme-linked immunosorbent assay microarray experiments. The software estimates standard curves, sample protein concentrations and their uncertainties for multiple assays. ProMAT generates a set of comprehensive figures for assessing results and diagnosing process quality. The tool is available for Windows or Mac, and is distributed as open-source Java and R code. AVAILABILITY: ProMAT is available at http://www.pnl.gov/statistics/ProMAT. ProMAT requires Java version 1.5.0 and R version 1.9.1 (or more recent versions). ProMAT requires either Windows XP or Mac OS 10.4 or newer versions. CONTACT: amanda.whitenl.gov JF - Bioinformatics AU - White, Amanda M AU - Daly, Don S AU - Varnum, Susan M AU - Anderson, Kevin K AU - Bollinger, Nikki AU - Zangar, Richard C AD - Statistical Sciences, Pacific Northwest National Laboratory Richland, WA 99354, USA. Cell Biology and Biochemistry, Pacific Northwest National Laboratory Richland, WA 99354, USA. Decision and Sensor Analytics, Pacific Northwest National Laboratory Richland, WA 99354, USA Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 1278 EP - 1279 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 22 IS - 10 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts KW - Computer programs KW - Enzyme-linked immunosorbent assay KW - software KW - Data processing KW - Protein arrays KW - Statistical analysis KW - Bioinformatics KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19441894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=ProMAT%3A+protein+microarray+analysis+tool&rft.au=White%2C+Amanda+M%3BDaly%2C+Don+S%3BVarnum%2C+Susan+M%3BAnderson%2C+Kevin+K%3BBollinger%2C+Nikki%3BZangar%2C+Richard+C&rft.aulast=White&rft.aufirst=Amanda&rft.date=2006-05-01&rft.volume=22&rft.issue=10&rft.spage=1278&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Computer programs; software; Protein arrays; Data processing; Statistical analysis; Enzyme-linked immunosorbent assay; Bioinformatics ER - TY - JOUR T1 - Video and acoustic camera techniques for studying fish under ice: a review and comparison AN - 19351843; 7083414 AB - Researchers attempting to study the presence, abundance, size, and behavior of fish species in northern and arctic climates during winter face many challenges, including the presence of thick ice cover, snow cover, and, sometimes, extremely low temperatures. This paper describes and compares the use of video and acoustic cameras for determining fish presence and behavior in lakes, rivers, and streams with ice cover. Methods are provided for determining fish density and size, identifying species, and measuring swimming speed and successful applications of previous surveys of fish under the ice are described. These include drilling ice holes, selecting batteries and generators, deploying pan and tilt cameras, and using paired colored lasers to determine fish size and habitat associations. We also discuss use of infrared and white light to enhance image-capturing capabilities, deployment of digital recording systems and time-lapse techniques, and the use of imaging software. Data are presented from initial surveys with video and acoustic cameras in the Sagavanirktok River Delta, Alaska, during late winter 2004. These surveys represent the first known successful application of a dual-frequency identification sonar (DIDSON super(TM)) acoustic camera under the ice that achieved fish detection and sizing at camera ranges up to 16 m. Feasibility tests of video and acoustic cameras for determining fish size and density at various turbidity levels are also presented. Comparisons are made of the different techniques in terms of suitability for achieving various fisheries research objectives. This information is intended to assist researchers in choosing the equipment that best meets their study needs. JF - Reviews in Fish Biology and Fisheries AU - Mueller, Robert P AU - Brown, Richard S AU - Hop, Haakon AU - Moulton, Larry AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington, 99352, USA, robert.mueller@pnl.gov Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 213 EP - 226 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de] VL - 16 IS - 2 SN - 0960-3166, 0960-3166 KW - Animal Behavior Abstracts; Sustainability Science Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Feasibility studies KW - Echosounders KW - Freshwater KW - Computer programs KW - Lakes KW - USA, Alaska, North Slope, Sagavanirktok R. KW - Batteries KW - Fishery surveys KW - deltas KW - Fisheries KW - Body size KW - Rivers KW - Ice KW - Audiovisual materials KW - Acoustics KW - Stock assessment KW - Underwater cameras KW - INE, USA, Alaska KW - Acoustic arrays KW - PN, Arctic KW - Lake ice KW - winter KW - Reviews KW - Cameras KW - Turbidity KW - Ice cover KW - Population number KW - M3 1010:Issues in Sustainable Development KW - Y 25130:Methodology KW - Q2 09202:Methods and instruments KW - Q1 08604:Stock assessment and management UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19351843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Fish+Biology+and+Fisheries&rft.atitle=Video+and+acoustic+camera+techniques+for+studying+fish+under+ice%3A+a+review+and+comparison&rft.au=Mueller%2C+Robert+P%3BBrown%2C+Richard+S%3BHop%2C+Haakon%3BMoulton%2C+Larry&rft.aulast=Mueller&rft.aufirst=Robert&rft.date=2006-05-01&rft.volume=16&rft.issue=2&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Fish+Biology+and+Fisheries&rft.issn=09603166&rft_id=info:doi/10.1007%2Fs11160-006-9011-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Rivers; Audiovisual materials; Stock assessment; Underwater cameras; Echosounders; Acoustic arrays; Lakes; Lake ice; Fishery surveys; Cameras; Body size; Ice cover; Turbidity; Population number; Feasibility studies; Computer programs; Ice; winter; Batteries; Acoustics; deltas; Reviews; Fisheries; PN, Arctic; USA, Alaska, North Slope, Sagavanirktok R.; INE, USA, Alaska; Freshwater DO - http://dx.doi.org/10.1007/s11160-006-9011-0 ER - TY - JOUR T1 - Scientific ocean drilling; characterizing and sampling methane hydrates AN - 1832649463; 778391-7 JF - Offshore Technology Conference AU - Rack, F AU - Schultheiss, P J AU - Goldberg, D AU - Storms, M AU - Schroeder, D AU - Julson, B AU - Malone, M AU - Collett, T AU - Riedel, M AU - Long, P AU - ? Y1 - 2006/05// PY - 2006 DA - May 2006 PB - Offshore Technology Conference, [Dallas, TX] VL - 2006 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832649463?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Offshore+Technology+Conference&rft.atitle=Scientific+ocean+drilling%3B+characterizing+and+sampling+methane+hydrates&rft.au=Rack%2C+F%3BSchultheiss%2C+P+J%3BGoldberg%2C+D%3BStorms%2C+M%3BSchroeder%2C+D%3BJulson%2C+B%3BMalone%2C+M%3BCollett%2C+T%3BRiedel%2C+M%3BLong%2C+P%3B%3F&rft.aulast=Rack&rft.aufirst=F&rft.date=2006-05-01&rft.volume=2006&rft.issue=&rft.spage=OTC+18011&rft.isbn=&rft.btitle=&rft.title=Offshore+Technology+Conference&rft.issn=&rft_id=info:doi/10.4043%2F18011-MS LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - TX] N1 - Last updated - 2017-01-24 N1 - CODEN - #07353 DO - http://dx.doi.org/10.4043/18011-MS ER - TY - JOUR T1 - Disposition of lead (Pb) in saliva and blood of Sprague-Dawley rats following a single or repeated oral exposure to Pb-acetate AN - 17166497; 6823120 AB - Biological monitoring for lead (Pb) is usually based upon a determination of blood Pb concentration; however, saliva has been suggested as a non-invasive biological matrix for assessing exposure. To further evaluate the potential utility of saliva for biomonitoring, the disposition of Pb was evaluated in whole blood (WB), red blood cells (RBC), plasma, parotid gland, bone, and saliva following either a single oral dose of 100 mg Pb-acetate/kg body weight in rats or 1-week after 5 sequential daily oral gavage doses of 1, 10, or 100 mg Pb- acetate/kg/day. Saliva volume, pH, total saliva protein, and alpha -amylase activity were also determined. At specified times post-dosing groups of animals were anesthetized and administered pilocarpine to induce salivation. Saliva was collected, the animals were humanely sacrificed, and tissue samples were likewise collected, weighed, and processed for Pb analysis. Following a single dose exposure to Pb-acetate, Pb was detectable in all samples by 30 min post- dosing. For both the single and repeated dose treatments the concentration of Pb was highest in WB and RBC relative to plasma and saliva. However, the Pb rapidly redistributed (within 5-days post-treatment) from the blood into the bone compartment based on the substantial decrease in WB and RBC Pb concentration, and the concurrent increase in bone Pb following repeated exposure at all dose levels. Although there is clear variability in the observed Pb concentrations in plasma and saliva, there was a reasonable correlation (r super(2) = 0.922) between the average Pb concentrations in these biological matrices, which was consistent with previous observations. The single oral dose of Pb-acetate resulted in a decrease in salivary pH which recovered by 24 h post-dosing and a decrease in alpha -amylase enzyme activity which did recover within 5-days of ceasing exposure. It is currently unclear what impact these slight functional changes may or may not have on Pb salivary clearance rates. These results demonstrate a feasibility to rapidly detect Pb in saliva and suggest that saliva may correlate best with plasma Pb concentration. JF - Toxicology AU - Timchalk, C AU - Lin, Y AU - Weitz, K K AU - Wu, H AU - Gies, R A AU - Moore, DA AU - Yantasee, W AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, PO Box 999, Richland, WA 99352, USA, charles.timchalk@pnl.gov Y1 - 2006/05// PY - 2006 DA - May 2006 SP - 86 EP - 94 PB - Elsevier Science Ireland Ltd., P.O. Box 85 Limerick Ireland VL - 222 IS - 1-2 SN - 0300-483X, 0300-483X KW - Toxicology Abstracts KW - Lead KW - Saliva KW - Oral exposure KW - Pharmacokinetics KW - Rats KW - Erythrocytes KW - Parotid gland KW - Enzymes KW - Disposition KW - Acetic acid KW - alpha -Amylase KW - Body weight KW - biomonitoring KW - Pilocarpine KW - pH effects KW - X 24163:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17166497?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Subsurface+microbiology+and+biogeochemistry&rft.title=Subsurface+microbiology+and+biogeochemistry&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - alpha -Amylase; Body weight; Parotid gland; Erythrocytes; Enzymes; biomonitoring; Pilocarpine; Disposition; Saliva; Acetic acid; pH effects; Lead DO - http://dx.doi.org/10.1016/j.tox.2006.01.030 ER - TY - CPAPER T1 - Recent Microearthquake Swarms in the Yakima Fold Belt, Southeastern Washington T2 - 100th Anniversary Earthquake Conference AN - 40093872; 4239185 JF - 100th Anniversary Earthquake Conference AU - Rohay, Alan Y1 - 2006/04/18/ PY - 2006 DA - 2006 Apr 18 KW - USA, Washington KW - Swarms KW - Microearthquakes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40093872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=100th+Anniversary+Earthquake+Conference&rft.atitle=Recent+Microearthquake+Swarms+in+the+Yakima+Fold+Belt%2C+Southeastern+Washington&rft.au=Rohay%2C+Alan&rft.aulast=Rohay&rft.aufirst=Alan&rft.date=2006-04-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=100th+Anniversary+Earthquake+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.miracd.com/8NCEE/Itinerary/default.asp?Refresh=1&target=Sea rchResults%2Easp%3FsesDay%3D2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Recent microearthquake swarms in the Yakima fold belt, southeastern Washington AN - 51555697; 2006-067654 JF - Seismological Research Letters AU - Rohay, Alan AU - Prentice, Carol AU - Ellsworth, William AU - Hellweg, Peggy Y1 - 2006/04// PY - 2006 DA - April 2006 SP - 209 PB - Seismological Society of America, El Cerrito, CA VL - 77 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - Washington KW - swarms KW - geologic hazards KW - magnitude KW - Columbia River Basalt Group KW - Miocene KW - depth KW - Cenozoic KW - Tertiary KW - seismicity KW - Neogene KW - seismic risk KW - risk assessment KW - focus KW - Yakima fold belt KW - microearthquakes KW - earthquakes KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51555697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Recent+microearthquake+swarms+in+the+Yakima+fold+belt%2C+southeastern+Washington&rft.au=Rohay%2C+Alan%3BPrentice%2C+Carol%3BEllsworth%2C+William%3BHellweg%2C+Peggy&rft.aulast=Rohay&rft.aufirst=Alan&rft.date=2006-04-01&rft.volume=77&rft.issue=2&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ L2 - http://srl.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - 2006 Annual meeting, Seismological Society of America; 100th anniversary earthquake conference N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - CA N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - Cenozoic; Columbia River Basalt Group; depth; earthquakes; focus; geologic hazards; magnitude; microearthquakes; Miocene; Neogene; risk assessment; seismic risk; seismicity; swarms; Tertiary; United States; Washington; Yakima fold belt ER - TY - JOUR T1 - Microscale controls on the fate of contaminant uranium in the vadose zone, Hanford Site, Washington AN - 51429421; 2007-058275 AB - An alkaline brine containing uranyl (UO (sub 2) (super 2+) ) leaked to the thick unsaturated zone at the Hanford Site. We examined samples from this zone at microscopic scale to determine the mode of uranium occurrence-microprecipitates of uranyl (UO (sub 2) (super 2+) ) silicate within lithic-clast microfractures and constructed a conceptual model for its emplacement, which we tested using a model of reactive diffusion at that scale. The study was driven by the need to understand the heterogeneous distribution of uranium and the chemical processes that controlled it. X-ray and electron microprobe imaging showed that the uranium was associated with a minority of clasts, specifically granitic clasts occupying less than four percent of the sediment volume. XANES analysis at micron resolution showed the uranium to be hexavalent. The uranium was precipitated in microfractures as radiating clusters of uranyl silicates, and sorbed uranium was not observed on other surfaces. Compositional determinations of the 1-3 mu m precipitates were difficult, but indicated a uranyl silicate. These observations suggested that uranyl was removed from pore waters by diffusion and precipitation in microfractures, where dissolved silica within the granite-equilibrated solution would cause supersaturation with respect to sodium boltwoodite. This hypothesis was tested using a reactive diffusion model operating at microscale. Conditions favoring precipitation were simulated to be transient, and driven by the compositional contrast between pore and fracture space. Pore-space conditions, including alkaline pH, were eventually imposed on the microfracture environment. However, conditions favoring precipitation were prolonged within the microfracture by reaction at the silicate mineral surface to buffer pH in a solubility limiting acidic state, and to replenish dissolved silica. During this time, uranyl was additionally removed to the fracture space by diffusion from pore space. Uranyl is effectively immobilized within the microfracture environment within the presently unsaturated Vadose Zone. JF - Geochimica et Cosmochimica Acta AU - McKinley, J P AU - Zachara, J M AU - Liu, C AU - Heald, Steven C AU - Prenitzer, Brenda I AU - Kempshall, Brian W Y1 - 2006/04// PY - 2006 DA - April 2006 SP - 1873 EP - 1887 PB - Elsevier, New York, NY VL - 70 IS - 8 SN - 0016-7037, 0016-7037 KW - United States KW - unsaturated zone KW - ground water KW - XANES spectra KW - environmental management KW - mineral composition KW - chemical reactions KW - spectra KW - chemical composition KW - water pollution KW - geochemistry KW - pH KW - diffusivity KW - Washington KW - textures KW - pollutants KW - uranyl ion KW - pollution KW - Hanford Site KW - electron microscopy data KW - solubility KW - hydrochemistry KW - X-ray spectra KW - alkalic composition KW - models KW - precipitation KW - metals KW - brines KW - EXAFS data KW - uranium KW - actinides KW - SEM data KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51429421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Microscale+controls+on+the+fate+of+contaminant+uranium+in+the+vadose+zone%2C+Hanford+Site%2C+Washington&rft.au=McKinley%2C+J+P%3BZachara%2C+J+M%3BLiu%2C+C%3BHeald%2C+Steven+C%3BPrenitzer%2C+Brenda+I%3BKempshall%2C+Brian+W&rft.aulast=McKinley&rft.aufirst=J&rft.date=2006-04-01&rft.volume=70&rft.issue=8&rft.spage=1873&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2005.10.037 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 65 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alkalic composition; brines; chemical composition; chemical reactions; diffusivity; electron microscopy data; environmental management; EXAFS data; geochemistry; ground water; Hanford Site; hydrochemistry; metals; mineral composition; models; pH; pollutants; pollution; precipitation; SEM data; solubility; spectra; textures; United States; unsaturated zone; uranium; uranyl ion; Washington; water pollution; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2005.10.037 ER - TY - JOUR T1 - Computer simulation of electron transfer at hematite surfaces AN - 51424047; 2007-058276 AB - Molecular dynamics simulations in combination with ab initio calculations were carried out to determine the rate of electron transfer at room temperature in bulk hematite (alpha -Fe (sub 2) O (sub 3) ) and at two low-index surfaces, namely the (012) and (001) surfaces. The electron transfer reactions considered here involve the II/III valence interchange between nearest-neighbor iron atoms. Two electron transfer directions were investigated, namely the basal plane and c direction electron transfers. Electron transfer rates obtained in bulk hematite were in good agreement with ab initio electronic structure calculations thus validating the potential model. The surfaces were considered both in vacuum and in contact with an equilibrated aqueous solution. The reorganization energy is found to increase significantly at the first surface layer and this value is little affected by the presence of water. In addition, in the case of the (012) surface, the electronic coupling matrix element for the topmost basal plane transfer was calculated at the Hartree-Fock level and was found to be weak compared to the corresponding electron transfer in the bulk. Therefore, most surfaces show a decrease in the rate of electron transfer at the surface. However, where iron atoms involved in the electron transfer reaction are directly coordinated to water molecules, water lowers the free energy of activation to a great extent and provides a large driving force for electrons to diffuse toward the bulk thus opposing the intrinsic surface effect. The surfaces considered in this work show different electron transfer properties. Hematite has been shown to exhibit anisotropic conductivity and thus different surfaces will show different intra- and inter-layer rates depending on their orientation. Moreover, the calculations of electron transfers at the hydroxyl- and iron-terminated (001) surfaces revealed that surface termination has a significant effect on the electron transfer parameters in the vicinity of the surface. Finally, our findings indicate that undercoordinated terminal iron atoms could act as electron traps at the surface. JF - Geochimica et Cosmochimica Acta AU - Kerisit, Sebastien AU - Rosso, K M Y1 - 2006/04// PY - 2006 DA - April 2006 SP - 1888 EP - 1903 PB - Elsevier, New York, NY VL - 70 IS - 8 SN - 0016-7037, 0016-7037 KW - surface properties KW - electrical conductivity KW - data processing KW - coupling KW - crystal structure KW - simulation KW - molecular structure KW - models KW - chemical reactions KW - hematite KW - movement KW - mathematical methods KW - oxides KW - crystallization KW - crystal chemistry KW - geochemistry KW - anisotropy KW - electrons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51424047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Computer+simulation+of+electron+transfer+at+hematite+surfaces&rft.au=Kerisit%2C+Sebastien%3BRosso%2C+K+M&rft.aulast=Kerisit&rft.aufirst=Sebastien&rft.date=2006-04-01&rft.volume=70&rft.issue=8&rft.spage=1888&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2005.12.021 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 63 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anisotropy; chemical reactions; coupling; crystal chemistry; crystal structure; crystallization; data processing; electrical conductivity; electrons; geochemistry; hematite; mathematical methods; models; molecular structure; movement; oxides; simulation; surface properties DO - http://dx.doi.org/10.1016/j.gca.2005.12.021 ER - TY - JOUR T1 - Journal of Volcanology and Geothermal Research AN - 51413908; 2007-050457 JF - Journal of Volcanology and Geothermal Research AU - Reidel, S Y1 - 2006/04// PY - 2006 DA - April 2006 SP - 189 EP - 193 PB - Elsevier, Amsterdam VL - 152 IS - 1-2 SN - 0377-0273, 0377-0273 KW - United States KW - flood basalts KW - Washington KW - volcanic rocks KW - igneous rocks KW - Columbia River Basalt Group KW - Hanford Site KW - Grande Ronde Basalt KW - Miocene KW - melts KW - Cohassett Basalt KW - crystals KW - compaction KW - Cenozoic KW - Tertiary KW - Neogene KW - magmas KW - basalts KW - basalt flows KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51413908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Volcanology+and+Geothermal+Research&rft.atitle=Journal+of+Volcanology+and+Geothermal+Research&rft.au=Reidel%2C+S&rft.aulast=Reidel&rft.aufirst=S&rft.date=2006-04-01&rft.volume=152&rft.issue=1-2&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Journal+of+Volcanology+and+Geothermal+Research&rft.issn=03770273&rft_id=info:doi/10.1016%2Fj.jvolgeores.2005.11.001 L2 - http://www.sciencedirect.com/science/journal/03770273 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - SuppNotes - Based on Publisher-supplied data; for reference to original see Philpotts, A. R. and Philpotts, D. E., Journal of Volcanology and Geothermal Research, Vol. 145, p. 192-206, 2006 N1 - Last updated - 2012-06-07 N1 - CODEN - JVGRDQ N1 - SubjectsTermNotLitGenreText - basalt flows; basalts; Cenozoic; Cohassett Basalt; Columbia River Basalt Group; compaction; crystals; flood basalts; Grande Ronde Basalt; Hanford Site; igneous rocks; magmas; melts; Miocene; Neogene; Tertiary; United States; volcanic rocks; Washington DO - http://dx.doi.org/10.1016/j.jvolgeores.2005.11.001 ER - TY - JOUR T1 - Dissolution rates and vadose zone drainage from strontium isotope measurements of groundwater in the Pasco Basin, WA unconfined aquifer AN - 50245649; 2009-077823 AB - Strontium isotope ratios ( (super 87) Sr/ (super 86) Sr) measured in groundwater samples from 273 wells in the Pasco Basin unconfined aquifer below the US Department Of Energy Hanford Site show large and systematic variations that provide constraints on groundwater recharge, weathering rates (for saturated zone dissolution) of the aquifer host rocks, communication between unconfined and deeper confined aquifers, and vadose zone-groundwater interaction. The impact of millions of cubic meters of wastewater discharged to the vadose zone (10 (super 3) -10 (super 5) times higher than ambient drainage) shows up strikingly on maps of groundwater (super 87) Sr/ (super 86) Sr. Extensive access through the many groundwater monitoring wells at the site allows for an unprecedented opportunity to evaluate the strontium geochemistry of a major aquifer, hosted primarily in unconsolidated sediments, and relate it to both long term properties and recent disturbances. Groundwater (super 87) Sr/ (super 86) Sr increases systematically from 0.707 to 0.712 from west to east across the Hanford Site, in the general direction of groundwater flow, as a result of addition of Sr from the weathering of aquifer sediments and from diffuse drainage through the Pasco Basin vadose zone. The lower (super 87) Sr/ (super 86) Sr groundwater reflects recharge waters that have acquired Sr from Columbia River Basalts. Based on a steady-state model of Sr reactive transport and drainage, there is an average natural drainage flux of 0-1.4 mm/yr near the western margin of the Hanford Site, and ambient drainage may be up to 30 mm/yr in the center of the site assuming an average bulk rock weathering rate of 10 (super -7.5) g/(g/yr). The weathering rates cannot be higher than those assumed by more than a factor of 2-3, in order to match Sr isotope data. JF - Journal of Hydrology AU - Singleton, Michael J AU - Maher, Katharine AU - DePaolo, Donald J AU - Conrad, Mark E AU - Dresel, P Evan Y1 - 2006/04// PY - 2006 DA - April 2006 SP - 39 EP - 58 PB - Elsevier, Amsterdam VL - 321 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - isotopes KW - unsaturated zone KW - solution KW - stable isotopes KW - radioactive waste KW - ground water KW - Pasco Basin KW - water pollution KW - geochemistry KW - alkaline earth metals KW - Washington KW - isotope ratios KW - drainage KW - pollution KW - Hanford Site KW - hydrochemistry KW - weathering KW - aquifers KW - Sr-87/Sr-86 KW - recharge KW - metals KW - weathering rates KW - waste disposal KW - unconfined aquifers KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50245649?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Dissolution+rates+and+vadose+zone+drainage+from+strontium+isotope+measurements+of+groundwater+in+the+Pasco+Basin%2C+WA+unconfined+aquifer&rft.au=Singleton%2C+Michael+J%3BMaher%2C+Katharine%3BDePaolo%2C+Donald+J%3BConrad%2C+Mark+E%3BDresel%2C+P+Evan&rft.aulast=Singleton&rft.aufirst=Michael&rft.date=2006-04-01&rft.volume=321&rft.issue=1-4&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2005.07.044 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2009-01-01 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Based on Publisher-supplied data; includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aquifers; drainage; geochemistry; ground water; Hanford Site; hydrochemistry; isotope ratios; isotopes; metals; Pasco Basin; pollution; radioactive waste; recharge; solution; Sr-87/Sr-86; stable isotopes; strontium; unconfined aquifers; United States; unsaturated zone; Washington; waste disposal; water pollution; weathering; weathering rates DO - http://dx.doi.org/10.1016/j.jhydrol.2005.07.044 ER - TY - JOUR T1 - Differential Label-free Quantitative Proteomic Analysis of Shewanella oneidensis Cultured under Aerobic and Suboxic Conditions by Accurate Mass and Time Tag Approach AN - 20862052; 6753804 AB - We describe the application of LC-MS without the use of stable isotope labeling for differential quantitative proteomic analysis of whole cell lysates of Shewanella oneidensis MR-1 cultured under aerobic and suboxic conditions. LC-MS/MS was used to initially identify peptide sequences, and LC-FTICR was used to confirm these identifications as well as measure relative peptide abundances. 2343 peptides covering 668 proteins were identified with high confidence and quantified. Among these proteins, a subset of 56 changed significantly using statistical approaches such as statistical analysis of microarrays, whereas another subset of 56 that were annotated as performing housekeeping functions remained essentially unchanged in relative abundance. Numerous proteins involved in anaerobic energy metabolism exhibited up to a 10-fold increase in relative abundance when S. oneidensis was transitioned from aerobic to suboxic conditions. JF - Molecular and Cellular Proteomics AU - Fang, Ruihua AU - Elias, Dwayne A AU - Monroe, Matthew E AU - Shen, Yufeng AU - Mcintosh, Martin AU - Wang, Pei AU - Goddard, Carrie D AU - Callister, Stephen J AU - Moore, Ronald J AU - Gorby, Yuri A AU - Adkins, Joshua N AU - Fredrickson, Jim K AU - Lipton, Mary S AU - Smith, Richard D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland Washington 99352 and Computational Proteomics Laboratory, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1024 Y1 - 2006/04// PY - 2006 DA - Apr 2006 SP - 714 EP - 725 PB - American Society for Biochemistry and Molecular Biology, 9650 Rockville Pike Bethesda MD 20814-3996 USA, [mailto:asbmb@asbmb.faseb.org], [URL:http://www.asbmb.org/] VL - 5 IS - 4 SN - 1535-9476, 1535-9476 KW - Microbiology Abstracts B: Bacteriology KW - Isotopes KW - Statistics KW - Energy metabolism KW - Shewanella oneidensis KW - Statistical analysis KW - proteomics KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20862052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+and+Cellular+Proteomics&rft.atitle=Differential+Label-free+Quantitative+Proteomic+Analysis+of+Shewanella+oneidensis+Cultured+under+Aerobic+and+Suboxic+Conditions+by+Accurate+Mass+and+Time+Tag+Approach&rft.au=Fang%2C+Ruihua%3BElias%2C+Dwayne+A%3BMonroe%2C+Matthew+E%3BShen%2C+Yufeng%3BMcintosh%2C+Martin%3BWang%2C+Pei%3BGoddard%2C+Carrie+D%3BCallister%2C+Stephen+J%3BMoore%2C+Ronald+J%3BGorby%2C+Yuri+A%3BAdkins%2C+Joshua+N%3BFredrickson%2C+Jim+K%3BLipton%2C+Mary+S%3BSmith%2C+Richard+D&rft.aulast=Fang&rft.aufirst=Ruihua&rft.date=2006-04-01&rft.volume=5&rft.issue=4&rft.spage=714&rft.isbn=&rft.btitle=&rft.title=Molecular+and+Cellular+Proteomics&rft.issn=15359476&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-08-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Isotopes; Statistics; Energy metabolism; Statistical analysis; proteomics; Shewanella oneidensis ER - TY - JOUR T1 - Two-Component Signal Transduction Systems of Desulfovibrio vulgaris: Structural and Phylogenetic Analysis and Deduction of Putative Cognate Pairs AN - 19528462; 7947179 AB - A large number of two-component signal transduction systems (TCSTS) including 59 putative sensory histidine kinases (HK) and 55 response regulators (RR) were identified from the Desulfovibrio vulgaris genome. In this study, the structural and phylogenetic analyses of all putative TCSTSs in D. vulgaris were performed. The results showed that D. vulgaris contained 21 hybrid-type HKs, implying that multiple-step phosphorelay may be a common signal transduction mechanism in D. vulgaris. Despite the low sequence similarity that restricted the resolution of the phylogenetic analyses, most TCSTS components of D. vulgaris were found clustered into several subfamilies previously recognized in Escherichia coli and Bacillus subtilis. An attempt was made in this investigation to identify the possible cognate HK-RR pairs not linked on the chromosome in D. vulgaris based on similar expression patterns in response to various environmental and genetic changes. Expression levels of all HK and RR genes were measured using whole-genome microarrays. Five groups of HK-RR genes not linked on the chromosome were identified as possible cognate pairs in D. vulgaris. The results provided a preliminary list of possible cognate HK-RR pairs and constitute a basis for further exploration of interaction and physiological function of TCSTSs in D. vulgaris. JF - Journal of Molecular Evolution AU - Zhang, Weiwen AU - Culley, David E AU - Wu, Gang AU - Brockman, Fred J AD - Pacific Northwest National Laboratory, Richland, WA, 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2006/04// PY - 2006 DA - April 2006 SP - 473 EP - 487 PB - Springer-Verlag, 175 Fifth Ave. New York NY 10010 USA, [mailto:orders@springer-ny.com] VL - 62 IS - 4 SN - 0022-2844, 0022-2844 KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - Histidine kinase KW - Genomes KW - Phylogeny KW - Bacillus subtilis KW - molecular evolution KW - Nucleotide sequence KW - Climatic changes KW - Desulfovibrio vulgaris KW - Chromosomes KW - Escherichia coli KW - Phylogenetics KW - Transduction KW - Evolution KW - Signal transduction KW - J 02310:Genetics & Taxonomy KW - Q1 08206:Physiology, biochemistry, biophysics KW - G 07770:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19528462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Molecular+Evolution&rft.atitle=Two-Component+Signal+Transduction+Systems+of+Desulfovibrio+vulgaris%3A+Structural+and+Phylogenetic+Analysis+and+Deduction+of+Putative+Cognate+Pairs&rft.au=Zhang%2C+Weiwen%3BCulley%2C+David+E%3BWu%2C+Gang%3BBrockman%2C+Fred+J&rft.aulast=Zhang&rft.aufirst=Weiwen&rft.date=2006-04-01&rft.volume=62&rft.issue=4&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Journal+of+Molecular+Evolution&rft.issn=00222844&rft_id=info:doi/10.1007%2Fs00239-005-0116-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Phylogeny; Genomes; Chromosomes; Nucleotide sequence; Climatic changes; Evolution; Transduction; Phylogenetics; Histidine kinase; molecular evolution; Signal transduction; Bacillus subtilis; Escherichia coli; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1007/s00239-005-0116-1 ER - TY - CPAPER T1 - Reductive Degradation of Tetrachloromethane (CCl4) by Iron: Progress and Prognosis T2 - 231st National Meeting of the American Chemical Society AN - 40099084; 4114869 JF - 231st National Meeting of the American Chemical Society AU - Amonette, James E Y1 - 2006/03/26/ PY - 2006 DA - 2006 Mar 26 KW - Iron KW - Prognosis KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40099084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=231st+National+Meeting+of+the+American+Chemical+Society&rft.atitle=Reductive+Degradation+of+Tetrachloromethane+%28CCl4%29+by+Iron%3A+Progress+and+Prognosis&rft.au=Amonette%2C+James+E&rft.aulast=Amonette&rft.aufirst=James&rft.date=2006-03-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=231st+National+Meeting+of+the+American+Chemical+Society&rft.issn=&rft_id=info:doi/ L2 - http://oasys2.confex.com/acs/231nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Gas Phase Hydrodesulfurization of JP-8 Light Fractions Using Steam Reformate T2 - 231st National Meeting of the American Chemical Society AN - 40081406; 4118845 JF - 231st National Meeting of the American Chemical Society AU - King, David L AU - Huang, Xiwen Y1 - 2006/03/26/ PY - 2006 DA - 2006 Mar 26 KW - Steam KW - Light effects KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40081406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=231st+National+Meeting+of+the+American+Chemical+Society&rft.atitle=Gas+Phase+Hydrodesulfurization+of+JP-8+Light+Fractions+Using+Steam+Reformate&rft.au=King%2C+David+L%3BHuang%2C+Xiwen&rft.aulast=King&rft.aufirst=David&rft.date=2006-03-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=231st+National+Meeting+of+the+American+Chemical+Society&rft.issn=&rft_id=info:doi/ L2 - http://oasys2.confex.com/acs/231nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Low Temperature Aqueous Phase Reforming of Sorbitol for Hydrogen Production T2 - 231st National Meeting of the American Chemical Society AN - 40063298; 4118763 JF - 231st National Meeting of the American Chemical Society AU - Cao, James AU - Xia, Gordon AU - Platon, Alex AU - King, David L AU - Wang, Yong Y1 - 2006/03/26/ PY - 2006 DA - 2006 Mar 26 KW - Hydrogen KW - Low temperature KW - Sorbitol KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40063298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=231st+National+Meeting+of+the+American+Chemical+Society&rft.atitle=Low+Temperature+Aqueous+Phase+Reforming+of+Sorbitol+for+Hydrogen+Production&rft.au=Cao%2C+James%3BXia%2C+Gordon%3BPlaton%2C+Alex%3BKing%2C+David+L%3BWang%2C+Yong&rft.aulast=Cao&rft.aufirst=James&rft.date=2006-03-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=231st+National+Meeting+of+the+American+Chemical+Society&rft.issn=&rft_id=info:doi/ L2 - http://oasys2.confex.com/acs/231nm/techprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Synthesis of organically templated nanoporous Tin(II/IV) phosphate for radionuclide and metal sequestration. AN - 67742887; 16529451 AB - Nanoporous tin(II/IV) phosphate materials, with spherical morphology, have been synthesized using cetyltrimethylammonium chloride [CH3(CH2)15N(CH3)3Cl] as the surfactant. The structure of the material is stable at 500 degrees C; however, partial oxidation of the material occurs with redox conversion of Sn2+ to Sn4+, resulting in a mixed Sn(II)/Sn(IV) material. Preliminary batch contact studies were conducted to assess the effectiveness of nanoporous tin phosphate, NP-SnPO, in sequestering redox-sensitive metals and radionuclides, technetium(VII), neptunium(V), thorium(IV), and a toxic metal, chromium(VI), from aqueous matrixes. Results indicate that tin(II) phosphate removed >95% of all contaminants investigated from solution. JF - Inorganic chemistry AU - Wellman, Dawn M AU - Mattigod, Shas V AU - Parker, Kent E AU - Heald, Steve M AU - Wang, Chongmin AU - Fryxell, Glen E AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. dawn.wellman@pnl.gov Y1 - 2006/03/20/ PY - 2006 DA - 2006 Mar 20 SP - 2382 EP - 2384 VL - 45 IS - 6 SN - 0020-1669, 0020-1669 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67742887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Inorganic+chemistry&rft.atitle=Synthesis+of+organically+templated+nanoporous+Tin%28II%2FIV%29+phosphate+for+radionuclide+and+metal+sequestration.&rft.au=Wellman%2C+Dawn+M%3BMattigod%2C+Shas+V%3BParker%2C+Kent+E%3BHeald%2C+Steve+M%3BWang%2C+Chongmin%3BFryxell%2C+Glen+E&rft.aulast=Wellman&rft.aufirst=Dawn&rft.date=2006-03-20&rft.volume=45&rft.issue=6&rft.spage=2382&rft.isbn=&rft.btitle=&rft.title=Inorganic+chemistry&rft.issn=00201669&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-04-24 N1 - Date created - 2006-03-13 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Erratum In: Inorg Chem. 2006 May 1;45(9):3826 N1 - Last updated - 2017-02-22 ER - TY - CPAPER T1 - Micron-Size Zero-Valent Iron Emplacement in Porous Media using Polymer Additives: Column and Flow Cell Experiments T2 - 26th Annual American Geophysical Union Conference (Hydrology Days 2006) AN - 40019167; 4188414 JF - 26th Annual American Geophysical Union Conference (Hydrology Days 2006) AU - Oostrom, M AU - Wietsma, T W AU - Covert, M A AU - Vermeul, V R Y1 - 2006/03/20/ PY - 2006 DA - 2006 Mar 20 KW - Additives KW - Iron KW - Polymers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40019167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Annual+American+Geophysical+Union+Conference+%28Hydrology+Days+2006%29&rft.atitle=Micron-Size+Zero-Valent+Iron+Emplacement+in+Porous+Media+using+Polymer+Additives%3A+Column+and+Flow+Cell+Experiments&rft.au=Oostrom%2C+M%3BWietsma%2C+T+W%3BCovert%2C+M+A%3BVermeul%2C+V+R&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2006-03-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Annual+American+Geophysical+Union+Conference+%28Hydrology+Days+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://hydrologydays.colostate.edu/schedule_06.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - LNAPLs Do not Always Float: An Example Case of a Viscous LNAPL under Variable Water Table Conditions T2 - 26th Annual American Geophysical Union Conference (Hydrology Days 2006) AN - 39971432; 4188415 JF - 26th Annual American Geophysical Union Conference (Hydrology Days 2006) AU - Oostrom, M AU - Hofstee, C AU - Wietsma, T W Y1 - 2006/03/20/ PY - 2006 DA - 2006 Mar 20 KW - Nonaqueous phase liquids KW - Water table UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39971432?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Annual+American+Geophysical+Union+Conference+%28Hydrology+Days+2006%29&rft.atitle=LNAPLs+Do+not+Always+Float%3A+An+Example+Case+of+a+Viscous+LNAPL+under+Variable+Water+Table+Conditions&rft.au=Oostrom%2C+M%3BHofstee%2C+C%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2006-03-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Annual+American+Geophysical+Union+Conference+%28Hydrology+Days+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://hydrologydays.colostate.edu/schedule_06.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Advanced Technologies and Approaches for Quantitative Biomonitoring for Chemical Exposures T2 - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AN - 39923472; 4146326 JF - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AU - Timchalk, C AU - Karla, T Y1 - 2006/03/05/ PY - 2006 DA - 2006 Mar 05 KW - Bioindicators KW - Biomonitoring UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39923472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.atitle=Advanced+Technologies+and+Approaches+for+Quantitative+Biomonitoring+for+Chemical+Exposures&rft.au=Timchalk%2C+C%3BKarla%2C+T&rft.aulast=Timchalk&rft.aufirst=C&rft.date=2006-03-05&rft.volume=2&rft.issue=&rft.spage=39&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0039 L2 - http://www.toxicology.org/ai/meet/am2006/it_planner.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - An Exploratory Particokinetic Model for Addressing the Unique Challenges of Nanoparticle Dosimetry In Vitro T2 - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AN - 39911814; 4146530 JF - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AU - Teeguarden, J G AU - Hinderliter, P M AU - Pounds, J G Y1 - 2006/03/05/ PY - 2006 DA - 2006 Mar 05 KW - Dosimetry KW - Nanoparticles KW - Models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39911814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.atitle=An+Exploratory+Particokinetic+Model+for+Addressing+the+Unique+Challenges+of+Nanoparticle+Dosimetry+In+Vitro&rft.au=Teeguarden%2C+J+G%3BHinderliter%2C+P+M%3BPounds%2C+J+G&rft.aulast=Teeguarden&rft.aufirst=J&rft.date=2006-03-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.toxicology.org/ai/meet/am2006/it_planner.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impact of Thermoregulation on Pharmacokinetic Parameters and Implications for Human Toxicity Assessment T2 - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AN - 39909340; 4146360 JF - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AU - Hinderliter, P M AU - Corley, R A Y1 - 2006/03/05/ PY - 2006 DA - 2006 Mar 05 KW - Toxicity KW - Pharmacokinetics KW - Thermoregulation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39909340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.atitle=Impact+of+Thermoregulation+on+Pharmacokinetic+Parameters+and+Implications+for+Human+Toxicity+Assessment&rft.au=Hinderliter%2C+P+M%3BCorley%2C+R+A&rft.aulast=Hinderliter&rft.aufirst=P&rft.date=2006-03-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.toxicology.org/ai/meet/am2006/it_planner.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Disposition of Lead (Pb) in Saliva, Blood Components, and Tissues Following Repeat Oral Exposure in the Rat T2 - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AN - 39904441; 4145398 JF - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AU - Yantasee, W AU - Gies, R A AU - Wu, H. AU - Timchalk, C Y1 - 2006/03/05/ PY - 2006 DA - 2006 Mar 05 KW - Lead KW - Blood KW - Disposition KW - Saliva UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39904441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.atitle=Disposition+of+Lead+%28Pb%29+in+Saliva%2C+Blood+Components%2C+and+Tissues+Following+Repeat+Oral+Exposure+in+the+Rat&rft.au=Yantasee%2C+W%3BGies%2C+R+A%3BWu%2C+H.%3BTimchalk%2C+C&rft.aulast=Yantasee&rft.aufirst=W&rft.date=2006-03-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.toxicology.org/ai/meet/am2006/it_planner.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Global Proteomic Changes in Mouse Lung After Inhalation Exposure to Lipopolysaccharide (LPS) and/or Cigarette Smoke T2 - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AN - 39856552; 4145392 JF - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AU - Springer, D L AU - Johnson, R E AU - Strittmatter, E F AU - Moore, R J AU - Pounds, J G AU - Lee, K M AU - Miller, J H Y1 - 2006/03/05/ PY - 2006 DA - 2006 Mar 05 KW - Lung KW - Smoke KW - Inhalation KW - Lipopolysaccharides KW - Proteomics KW - Cigarette smoke UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39856552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.atitle=Global+Proteomic+Changes+in+Mouse+Lung+After+Inhalation+Exposure+to+Lipopolysaccharide+%28LPS%29+and%2For+Cigarette+Smoke&rft.au=Springer%2C+D+L%3BJohnson%2C+R+E%3BStrittmatter%2C+E+F%3BMoore%2C+R+J%3BPounds%2C+J+G%3BLee%2C+K+M%3BMiller%2C+J+H&rft.aulast=Springer&rft.aufirst=D&rft.date=2006-03-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.toxicology.org/ai/meet/am2006/it_planner.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of Dermal Uptake Data for Pharmacokinetic Model Development in Rats T2 - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AN - 39851493; 4145949 JF - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AU - Gies, R A AU - Hinderliter, P M AU - Woodstock, A D AU - Thrall, K D Y1 - 2006/03/05/ PY - 2006 DA - 2006 Mar 05 KW - Pharmacokinetics KW - Rats KW - Skin UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39851493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.atitle=Comparison+of+Dermal+Uptake+Data+for+Pharmacokinetic+Model+Development+in+Rats&rft.au=Gies%2C+R+A%3BHinderliter%2C+P+M%3BWoodstock%2C+A+D%3BThrall%2C+K+D&rft.aulast=Gies&rft.aufirst=R&rft.date=2006-03-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.toxicology.org/ai/meet/am2006/it_planner.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Advancements in Modeling the Respiratory System T2 - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AN - 39816894; 4145611 JF - 45th Annual Meeting of the Society of Toxicology (SOT 2006) AU - Corley, R A AU - Minard, K R AU - Einstein, D R AU - Jacob, R E AU - Kabilan, S AU - Trease, L L AU - Hoffman, E A AU - Postlethwait, E AU - Plopper, C AU - Kimbell, J S AU - Harkema, J R AU - Hlastala, M AU - Timchalk, C Y1 - 2006/03/05/ PY - 2006 DA - 2006 Mar 05 KW - Respiratory system UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39816894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.atitle=Advancements+in+Modeling+the+Respiratory+System&rft.au=Corley%2C+R+A%3BMinard%2C+K+R%3BEinstein%2C+D+R%3BJacob%2C+R+E%3BKabilan%2C+S%3BTrease%2C+L+L%3BHoffman%2C+E+A%3BPostlethwait%2C+E%3BPlopper%2C+C%3BKimbell%2C+J+S%3BHarkema%2C+J+R%3BHlastala%2C+M%3BTimchalk%2C+C&rft.aulast=Corley&rft.aufirst=R&rft.date=2006-03-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+Society+of+Toxicology+%28SOT+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.toxicology.org/ai/meet/am2006/it_planner.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Post-Cold War Effects on the Non-Proliferation Regime AN - 59716613; 200620559 AB - Illustrates how the post-cold war period unipolar balance of power undermined the international nonproliferation regime. Various 1990s crises precipitated by the loss of the Soviet nuclear security umbrella or rejection of the unipolar power status are discussed: Iraq, North Korea, & India & Pakistan. The rise of international terrorism raised the specter of the use of weapons of mass destruction in terrorist attacks, & the impact of 9/11 on the nonproliferation regime is considered. Attention is also given to North Korea's 2003 withdrawal from the Nuclear Non-Proliferation Treaty (NPT); the 2003 invasion of Iraq, which is seen to have undermined US leadership of the international community; & the exposure of the nuclear black market led by Pakistani Abdul Qadeer Khan for 20 years. The crises with Iran & North Korea persist & are taken as failures of US leadership & multilateral consensus at the 2005 NPT Review Conference, which stands in sharp contrast to the 1995 & 2000 meetings. It is concluded that the rise of the US as a unipolar power in the post-cold war period may have unintentionally encouraged proliferation, & a call is made for the US to find ways to revitalize its leadership status & pursue multilateral solutions to current crises. D. Edelman JF - Problems of Post-Communism AU - Kessler, Carol AD - Center Global Security, Pacific Northwest National Laboratory Y1 - 2006/03// PY - 2006 DA - March 2006 SP - 30 EP - 38 PB - M.E. Sharpe, Armonk NY VL - 53 IS - 2 SN - 1075-8216, 1075-8216 KW - Nuclear Proliferation KW - Terrorism KW - Informal Sector KW - Post Cold War Period KW - North Korea KW - Political Power KW - article KW - 9063: international relations; international relations UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/59716613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awpsa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Problems+of+Post-Communism&rft.atitle=Post-Cold+War+Effects+on+the+Non-Proliferation+Regime&rft.au=Kessler%2C+Carol&rft.aulast=Kessler&rft.aufirst=Carol&rft.date=2006-03-01&rft.volume=53&rft.issue=2&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Problems+of+Post-Communism&rft.issn=10758216&rft_id=info:doi/ LA - English DB - Worldwide Political Science Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - SubjectsTermNotLitGenreText - Post Cold War Period; Nuclear Proliferation; Political Power; Terrorism; North Korea; Informal Sector ER - TY - JOUR T1 - Estimates of in situ gas hydrate concentration from resistivity monitoring of gas hydrate bearing sediments during temperature equilibration AN - 51585757; 2006-045081 AB - As part of Ocean Drilling Program Leg 204 at southern Hydrate Ridge off Oregon we have monitored changes in sediment electrical resistivity during controlled gas hydrate dissociation experiments. Two cores were used, each filled with gas hydrate bearing sediments (predominantly mud/silty mud). One core was from Site 1249 (1249F-9H3), 42.1 m below seafloor (mbsf) and the other from Site 1248 (1248C-4X1), 28.8 mbsf. At Site 1247, a third experiment was conducted on a core without gas hydrate (1247B-2H1, 3.6 mbsf). First, the cores were imaged using an infra-red (IR) camera upon recovery to map the gas hydrate occurrence through dissociation cooling. Over a period of several hours, successive runs on the multi-sensor track (includes sensors for P-wave velocity, resistivity, magnetic susceptibility and gamma-ray density) were carried out complemented by X-ray imaging on core 1249F-9H3. After complete equilibration to room temperature (17-18 degrees C) and complete gas hydrate dissociation, the final measurement of electrical resistivity was used to calculate pore-water resistivity and salinities. The calculated pore-water freshening after dissociation is equivalent to a gas hydrate concentration in situ of 35-70% along core 1249F-9H3 and 20-35% for core 1248C-4X1 assuming seawater salinity of in situ pore fluid. Detailed analysis of the IR scan, X-ray images and split-core photographs showed the hydrate mainly occurred disseminated throughout the core. Additionally, in core 1249F-9H3, a single hydrate filled vein, approximately 10 cm long and dipping at about 65 degrees , was identified. Analyses of the logging-while-drilling (LWD) resistivity data revealed a structural dip of 40-80 degrees in the interval between 40 and 44 mbsf. We further analyzed all resistivity data measured on the recovered core during Leg 204. Generally poor data quality due to gas cracks allowed analyses to be carried out only at selected intervals at Sites 1244, 1245, 1246, 1247, 1248, 1249, and 1252. With a few exceptions, data from these intervals yield low to no gas hydrate concentration, which corresponds to estimates from downhole resistivity logs. However, since the gas cracking may be the result of gas hydrate dissociation, this is a biased sampling. Cores that had contained some gas hydrate may have been excluded. JF - Marine Geology AU - Riedel, M AU - Long, P E AU - Collett, T S Y1 - 2006/03// PY - 2006 DA - March 2006 SP - 215 EP - 225 PB - Elsevier, Amsterdam VL - 227 IS - 3-4 SN - 0025-3227, 0025-3227 KW - United States KW - sea water KW - dissociation KW - Northeast Pacific KW - gas hydrates KW - salinity KW - cores KW - temperature KW - infrared spectra KW - ODP Site 1248 KW - Oregon KW - ODP Site 1247 KW - marine sediments KW - ODP Site 1249 KW - infrared methods KW - sediments KW - spectra KW - ODP Site 1244 KW - Leg 204 KW - ODP Site 1246 KW - ODP Site 1245 KW - East Pacific KW - concentration KW - experimental studies KW - electrical properties KW - in situ KW - geophysical methods KW - electrical methods KW - Hydrate Ridge KW - resistivity KW - X-ray data KW - North Pacific KW - Pacific Ocean KW - Ocean Drilling Program KW - ODP Site 1252 KW - pore water KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51585757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Geology&rft.atitle=Estimates+of+in+situ+gas+hydrate+concentration+from+resistivity+monitoring+of+gas+hydrate+bearing+sediments+during+temperature+equilibration&rft.au=Riedel%2C+M%3BLong%2C+P+E%3BCollett%2C+T+S&rft.aulast=Riedel&rft.aufirst=M&rft.date=2006-03-01&rft.volume=227&rft.issue=3-4&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Marine+Geology&rft.issn=00253227&rft_id=info:doi/10.1016%2Fj.margeo.2005.10.007 L2 - http://www.sciencedirect.com/science/journal/00253227 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MAGEA6 N1 - SubjectsTermNotLitGenreText - concentration; cores; dissociation; East Pacific; electrical methods; electrical properties; experimental studies; gas hydrates; geophysical methods; Hydrate Ridge; in situ; infrared methods; infrared spectra; Leg 204; marine sediments; North Pacific; Northeast Pacific; Ocean Drilling Program; ODP Site 1244; ODP Site 1245; ODP Site 1246; ODP Site 1247; ODP Site 1248; ODP Site 1249; ODP Site 1252; Oregon; Pacific Ocean; pore water; resistivity; salinity; sea water; sediments; spectra; temperature; United States; X-ray data DO - http://dx.doi.org/10.1016/j.margeo.2005.10.007 ER - TY - JOUR T1 - The effect of calcium on aqueous uranium(VI) speciation and adsorption to ferrihydrite and quartz AN - 51445644; 2007-046187 AB - Recent studies of uranium(VI) geochemistry have focused on the potentially important role of the aqueous species, CaUO (sub 2) (CO (sub 3) ) (sub 3) (super 2-) and Ca (sub 2) UO (sub 2) (CO (sub 3) ) (sub 3) (super 0) (aq), on inhibition of microbial reduction and uranium(VI) aqueous speciation in contaminated groundwater. However, to our knowledge, there have been no direct studies of the effects of these species on U(VI) adsorption by mineral phases. The sorption of U(VI) on quartz and ferrihydrite was investigated in NaNO (sub 3) solutions equilibrated with either ambient air (430 ppm CO (sub 2) ) or 2% CO (sub 2) in the presence of 0, 1.8, or 8.9 mM Ca (super 2+) . Under conditions where the Ca (sub 2) UO (sub 2) (CO (sub 3) ) (sub 3) (super 0) (aq) species predominates U(VI) aqueous speciation, the presence of Ca in solution lowered U(VI) adsorption on quartz from 77% in the absence of Ca to 42% and 10% at Ca concentrations of 1.8 and 8.9 mM, respectively. U(VI) adsorption to ferrihydrite decreased from 83% in the absence of Ca to 57% in the presence of 1.8 mM Ca. Surface complexation model predictions that included the formation constant for aqueous Ca (sub 2) UO (sub 2) (CO (sub 3) ) (sub 3) (super 0) (aq) accurately simulated the effect of Ca (super 2+) on U(VI) sorption onto quartz and ferrihydrite within the thermodynamic uncertainty of the stability constant value. This study confirms that Ca (super 2+) can have a significant impact on the aqueous speciation of U(VI), and consequently, on the sorption and mobility of U(VI) in aquifers. % in the absence of Ca to 42% and 10% at Ca concentrations of 1.8 and 8.9 mM, respectively. U(VI) adsorption to ferrihydrite decreased from 83% in the absence of Ca to 57% in the presence of 1.8 mM Ca. Surface complexation model predictions that included the formation constant for aqueous Ca (sub 2) UO (sub 2) (CO (sub 3) ) (sub 3) (super 0) (aq) accurately simulated the effect of Ca (super 2+) on U(VI) sorption onto quartz and ferrihydrite within the thermodynamic uncertainty of the stability constant value. This study confirms that Ca (super 2+) can have a significant impact on the aqueous speciation of U(VI), and consequently, on the sorption and mobility of U(VI) in aquifers. JF - Geochimica et Cosmochimica Acta AU - Fox, Patricia M AU - Davis, James A AU - Zachara, John M Y1 - 2006/03// PY - 2006 DA - March 2006 SP - 1379 EP - 1387 PB - Elsevier, New York, NY VL - 70 IS - 6 SN - 0016-7037, 0016-7037 KW - silicates KW - calcium KW - silica minerals KW - mass spectra KW - aqueous solutions KW - remediation KW - ground water KW - phase equilibria KW - oxides KW - framework silicates KW - spectra KW - reduction KW - water pollution KW - kinetics KW - geochemistry KW - alkaline earth metals KW - experimental studies KW - prediction KW - pollution KW - adsorption KW - hydrochemistry KW - ferrihydrite KW - models KW - ICP mass spectra KW - biogenic processes KW - metals KW - quartz KW - uranium KW - actinides KW - microorganisms KW - chemical fractionation KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+effect+of+calcium+on+aqueous+uranium%28VI%29+speciation+and+adsorption+to+ferrihydrite+and+quartz&rft.au=Fox%2C+Patricia+M%3BDavis%2C+James+A%3BZachara%2C+John+M&rft.aulast=Fox&rft.aufirst=Patricia&rft.date=2006-03-01&rft.volume=70&rft.issue=6&rft.spage=1379&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2005.11.027 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 31 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; adsorption; alkaline earth metals; aqueous solutions; biogenic processes; calcium; chemical fractionation; experimental studies; ferrihydrite; framework silicates; geochemistry; ground water; hydrochemistry; ICP mass spectra; kinetics; mass spectra; metals; microorganisms; models; oxides; phase equilibria; pollution; prediction; quartz; reduction; remediation; silica minerals; silicates; spectra; uranium; water pollution DO - http://dx.doi.org/10.1016/j.gca.2005.11.027 ER - TY - JOUR T1 - Defect distribution and dissolution morphologies on low index surfaces of alpha -quartz AN - 51433008; 2007-058235 AB - The dissolution of prismatic and rhombohedral quartz surfaces by KOH/H (sub 2) O solutions was investigated by atomic force microscopy. Rates of dissolution of different classes of surface features (e.g., steps, voids, and dislocation etch pits) were measured. The prismatic surface etched almost two orders of magnitude faster than the rhombohedral surface, mostly due to the difference in the number and the rate of dissolution of extended defects, such as dislocations. Because of the presence of imperfect twin boundaries, defect densities on the prismatic surface were estimated at 50-100 mu m (super -2) , whereas the rhombohedral surface possessed only approximately 0.5-1.0 mu m (super -2) , mostly in the form of crystal voids. Crystal voids etched almost one order of magnitude faster on the prismatic surface than on the rhombohedral surface due to differences in the number and the density of steps formed by voids on the different surfaces. In the absence of extended defects, both surfaces underwent step-wise dissolution at similar rates. Average rates of step retreat were comparable on both surfaces ( approximately 3-5 nm/h on the prismatic surface and approximately 5-10 nm/h on the rhombohedral surface). Prolonged dissolution left the prismatic surface reshaped to a hill-and-valley morphology, whereas the rhombohedral surface dissolved to form coalescing arrays of oval-shaped etch pits. JF - Geochimica et Cosmochimica Acta AU - Yanina, Svetlana V AU - Rosso, Kevin M AU - Meakin, Paul Y1 - 2006/03// PY - 2006 DA - March 2006 SP - 1113 EP - 1127 PB - Elsevier, New York, NY VL - 70 IS - 5 SN - 0016-7037, 0016-7037 KW - silicates KW - crystal form KW - silica minerals KW - solution KW - morphology KW - atomic force microscopy data KW - alpha quartz KW - mathematical methods KW - quartz KW - framework silicates KW - crystal chemistry KW - geochemistry KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51433008?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Defect+distribution+and+dissolution+morphologies+on+low+index+surfaces+of+alpha+-quartz&rft.au=Yanina%2C+Svetlana+V%3BRosso%2C+Kevin+M%3BMeakin%2C+Paul&rft.aulast=Yanina&rft.aufirst=Svetlana&rft.date=2006-03-01&rft.volume=70&rft.issue=5&rft.spage=1113&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2005.11.019 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 42 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, 2 plates N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alpha quartz; atomic force microscopy data; crystal chemistry; crystal form; framework silicates; geochemistry; mathematical methods; morphology; quartz; silica minerals; silicates; solution DO - http://dx.doi.org/10.1016/j.gca.2005.11.019 ER - TY - JOUR T1 - The fall and recovery of the Tagish Lake Meteorite AN - 50273581; 2006-058450 AB - The Tagish Lake C2 (ungrouped) carbonaceous chondrite fall of January 18, 2000, delivered approximately 10 kg of one of the most primitive and physically weak meteorites yet studied. In this paper, we report the detailed circumstances of the fall and the recovery of all documented Tagish Lake fragments from a strewnfield at least 16 km long and 3 to 4 km wide. Nearly 1 kg of "pristine" meteorites were collected one week after the fall before new snow covered the strewnfield; the majority of the recovered mass was collected during the spring melt. Ground eyewitnesses and a variety of instrument-recorded observations of the Tagish Lake fireball provide a refined estimate of the fireball trajectory. From its calculated orbit and its similarity to the remotely sensed properties of the D- and P-class asteroids, the Tagish Lake carbonaceous chondrite apparently represents these outer belt asteroids. The cosmogenic nuclide results and modeled production indicate a prefall radius of 2.1-2.4 m (corresponding to 60-90 tons) consistent with the observed fireball energy release. The bulk oxygen-isotope compositions plot just below the terrestrial fractionation line (TFL), following a trend similar to the CM meteorite mixing line. The bulk density of the Tagish Lake material (1.64+ or -0.02 g/cm (super 3) ) is the same, within uncertainty, as the total bulk densities of several C-class and especially D- and P-class asteroids. The high microporosity of Tagish Lake samples ( approximately 40%) provides an obvious candidate material for the composition of low bulk density primitive asteroids. JF - Meteoritics & Planetary Science AU - Hildebrand, Alan R AU - McCausland, Phil J A AU - Brown, Peter G AU - Longstaffe, Fred J AU - Russell, Sam D J AU - Tagliaferri, Edward AU - Wacker, John F AU - Mazur, Michael J Y1 - 2006/03// PY - 2006 DA - March 2006 SP - 407 EP - 431 PB - Meteoritical Society, Fayetteville, AR VL - 41 IS - 3 SN - 1086-9379, 1086-9379 KW - stony meteorites KW - oxygen KW - asteroids KW - isotopes KW - orbits KW - cosmogenic elements KW - Tagish Lake Meteorite KW - interplanetary dust KW - stable isotopes KW - mass KW - meteorites KW - size distribution KW - probability KW - satellites KW - chondrites KW - P-type asteroids KW - O-17/O-16 KW - D-type asteroids KW - Phobos Satellite KW - strewn fields KW - bulk density KW - parent bodies KW - statistical analysis KW - trajectories KW - British Columbia KW - O-18/O-16 KW - carbonaceous chondrites KW - porosity KW - meteorite falls KW - comets KW - Canada KW - fragments KW - fireballs KW - Western Canada KW - CM chondrites KW - remote sensing KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50273581?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+fall+and+recovery+of+the+Tagish+Lake+Meteorite&rft.au=Hildebrand%2C+Alan+R%3BMcCausland%2C+Phil+J+A%3BBrown%2C+Peter+G%3BLongstaffe%2C+Fred+J%3BRussell%2C+Sam+D+J%3BTagliaferri%2C+Edward%3BWacker%2C+John+F%3BMazur%2C+Michael+J&rft.aulast=Hildebrand&rft.aufirst=Alan&rft.date=2006-03-01&rft.volume=41&rft.issue=3&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 61 N1 - PubXState - AR N1 - Document feature - illus. incl. 7 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - asteroids; British Columbia; bulk density; Canada; carbonaceous chondrites; chondrites; CM chondrites; comets; cosmogenic elements; D-type asteroids; fireballs; fragments; interplanetary dust; isotopes; mass; meteorite falls; meteorites; O-17/O-16; O-18/O-16; orbits; oxygen; P-type asteroids; parent bodies; Phobos Satellite; porosity; probability; remote sensing; satellites; size distribution; stable isotopes; statistical analysis; stony meteorites; strewn fields; Tagish Lake Meteorite; trajectories; Western Canada ER - TY - JOUR T1 - Use of Electromyogram Telemetry to Assess Swimming Activity of Adult Spring Chinook Salmon Migrating Past a Columbia River Dam AN - 17178647; 6853516 AB - Electromyogram (EMG) radiotelemetry was used to estimate the swim speeds of spring Chinook salmon Oncorhynchus tshawytscha migrating upstream past a Columbia River dam. Electrodes from EMG transmitters were surgically implanted in the red muscle of fish captured at Bonneville Dam, and output from the tags was calibrated to defined swim speeds for each fish in a tunnel respirometer. The fish were then released below Bonneville Dam and radio-tracked as they migrated through the tailraces, fishways, and forebays of the dam. On average, swim speed was significantly higher when tagged salmon were moving through tailraces than when they were moving through other parts of the dam. Specifically, swim speeds for fish in tailraces (106.4 cm/s) were 23% higher than those of fish in fishways (84.9 cm/s) and 32% higher than those of fish in forebays (80.2 cm/s). Swim speeds were higher in fishways during the day than during the night, but there were no diel differences in swim speeds in tailraces and forebays. During dam passage, Chinook salmon spent the most time in tailraces, followed by fishways and forebays. JF - Transactions of the American Fisheries Society AU - Brown, Richard S AU - Geist, David R AU - Mesa, Matthew G AD - Pacific Northwest National Laboratory, Ecology Group, Mail Stop K6-85, Post Office Box 999, Richland, Washington 99354, USA Y1 - 2006/03// PY - 2006 DA - March 2006 SP - 281 EP - 287 PB - American Fisheries Society, 5410 Grosvenor Ln. Ste. 110 Bethesda MD 20814-2199 USA VL - 135 IS - 2 SN - 0002-8487, 0002-8487 KW - Chinook salmon KW - Ecology Abstracts; Animal Behavior Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Anadromous species KW - Freshwater KW - Oncorhynchus tshawytscha KW - Fishery management KW - Dams KW - Telemetry KW - EMG KW - Rivers KW - Fishways KW - Swimming KW - Muscles KW - Tunnels KW - Tracking KW - Tags KW - Fish physiology KW - USA, Columbia R., Bonneville Dam KW - Electrodes KW - Activity patterns KW - Q1 08421:Migrations and rhythms KW - D 04040:Ecosystem and Ecology Studies KW - Y 25531:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17178647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Use+of+Electromyogram+Telemetry+to+Assess+Swimming+Activity+of+Adult+Spring+Chinook+Salmon+Migrating+Past+a+Columbia+River+Dam&rft.au=Brown%2C+Richard+S%3BGeist%2C+David+R%3BMesa%2C+Matthew+G&rft.aulast=Brown&rft.aufirst=Richard&rft.date=2006-03-01&rft.volume=135&rft.issue=2&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/10.1577%2FT05-223.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Rivers; Tags; Swimming; Fishways; Fishery management; Fish physiology; Dams; Anadromous species; Telemetry; Activity patterns; Tracking; Muscles; Tunnels; Electrodes; EMG; Oncorhynchus tshawytscha; USA, Columbia R., Bonneville Dam; Freshwater DO - http://dx.doi.org/10.1577/T05-223.1 ER - TY - CPAPER T1 - Sampling and Analysis of Rare Gas Isotopes for In-Situ Delineation of Buried Transuranic and Tritium Wastes T2 - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AN - 39899567; 4143882 JF - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AU - Dresel, P Evan AU - Olsen, Khris B AU - Hayes, James C AU - McIntyre, Justin I AU - Waichler, Scott R Y1 - 2006/02/26/ PY - 2006 DA - 2006 Feb 26 KW - Tritium KW - Isotopes KW - Transuranics KW - Sampling KW - Wastes KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39899567?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=32nd+annual+Waste+Management+Symposia%3A+HLW%2C+TRU%2C+LLW%2FILW%2C+Mixed%2C+Hazardous+Wastes+and+Environmental+Management+%28WM+06%29&rft.atitle=Sampling+and+Analysis+of+Rare+Gas+Isotopes+for+In-Situ+Delineation+of+Buried+Transuranic+and+Tritium+Wastes&rft.au=Dresel%2C+P+Evan%3BOlsen%2C+Khris+B%3BHayes%2C+James+C%3BMcIntyre%2C+Justin+I%3BWaichler%2C+Scott+R&rft.aulast=Dresel&rft.aufirst=P&rft.date=2006-02-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=32nd+annual+Waste+Management+Symposia%3A+HLW%2C+TRU%2C+LLW%2FILW%2C+Mixed%2C+Hazardous+Wastes+and+Environmental+Management+%28WM+06%29&rft.issn=&rft_id=info:doi/ L2 - http://www.wmsym.org/pdf/WM06_Preliminary_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Application of Community-Based Biomarkers for Monitoring Impacts to the Hyporheic Zone in River Systems T2 - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AN - 39899509; 4143880 JF - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AU - Bunn, Amoret AU - Small, Jack AU - Stewart, Terri AU - Miracle, Ann AU - Geist, David AU - McKinstry, Craig Y1 - 2006/02/26/ PY - 2006 DA - 2006 Feb 26 KW - Bioindicators KW - Rivers KW - Biomarkers KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39899509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=32nd+annual+Waste+Management+Symposia%3A+HLW%2C+TRU%2C+LLW%2FILW%2C+Mixed%2C+Hazardous+Wastes+and+Environmental+Management+%28WM+06%29&rft.atitle=Application+of+Community-Based+Biomarkers+for+Monitoring+Impacts+to+the+Hyporheic+Zone+in+River+Systems&rft.au=Bunn%2C+Amoret%3BSmall%2C+Jack%3BStewart%2C+Terri%3BMiracle%2C+Ann%3BGeist%2C+David%3BMcKinstry%2C+Craig&rft.aulast=Bunn&rft.aufirst=Amoret&rft.date=2006-02-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=32nd+annual+Waste+Management+Symposia%3A+HLW%2C+TRU%2C+LLW%2FILW%2C+Mixed%2C+Hazardous+Wastes+and+Environmental+Management+%28WM+06%29&rft.issn=&rft_id=info:doi/ L2 - http://www.wmsym.org/pdf/WM06_Preliminary_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Glass Formulations for Immobilizing Hanford Low-Activity Wastes T2 - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AN - 39887159; 4143764 JF - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AU - Elliott, Michael AU - Kim, Dong-Sang AU - Mahoney, Lenna AU - Vienna, John AU - Hrma, Pavel Y1 - 2006/02/26/ PY - 2006 DA - 2006 Feb 26 KW - USA, Washington, Hanford KW - Glass KW - Wastes KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39887159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Fundamental+studies+of+iron+oxide+surface+geometric+and+electronic+structures&rft.au=Chambers%2C+S+A%3BAnonymous&rft.aulast=Chambers&rft.aufirst=S&rft.date=2001-01-01&rft.volume=1088&rft.issue=&rft.spage=3102&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.wmsym.org/pdf/WM06_Preliminary_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Site-Specific Seismic Response Model for the Waste Treatment Plant, Hanford, Washington T2 - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AN - 39806209; 4143657 JF - 32nd annual Waste Management Symposia: HLW, TRU, LLW/ILW, Mixed, Hazardous Wastes and Environmental Management (WM 06) AU - Reidel, Stephen Y1 - 2006/02/26/ PY - 2006 DA - 2006 Feb 26 KW - USA, Washington, Hanford KW - USA, Washington KW - Waste treatment plants KW - Waste treatment KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39806209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=32nd+annual+Waste+Management+Symposia%3A+HLW%2C+TRU%2C+LLW%2FILW%2C+Mixed%2C+Hazardous+Wastes+and+Environmental+Management+%28WM+06%29&rft.atitle=Site-Specific+Seismic+Response+Model+for+the+Waste+Treatment+Plant%2C+Hanford%2C+Washington&rft.au=Reidel%2C+Stephen&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2006-02-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=32nd+annual+Waste+Management+Symposia%3A+HLW%2C+TRU%2C+LLW%2FILW%2C+Mixed%2C+Hazardous+Wastes+and+Environmental+Management+%28WM+06%29&rft.issn=&rft_id=info:doi/ L2 - http://www.wmsym.org/pdf/WM06_Preliminary_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Building a Systems-Level Model of the EGF Receptor System from Diverse Sets of Data T2 - 10th International Meeting of the Association of Biomolecular Resource Facilities (ABRF 2006) AN - 39926157; 4149551 JF - 10th International Meeting of the Association of Biomolecular Resource Facilities (ABRF 2006) AU - Wiley, H S AU - Waters, K M AU - Quesenberry, R D AU - Liu, T AU - Kathmann, L E AU - Smith, R D AU - Thrall, B D Y1 - 2006/02/11/ PY - 2006 DA - 2006 Feb 11 KW - Epidermal growth factor UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39926157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=10th+International+Meeting+of+the+Association+of+Biomolecular+Resource+Facilities+%28ABRF+2006%29&rft.atitle=Building+a+Systems-Level+Model+of+the+EGF+Receptor+System+from+Diverse+Sets+of+Data&rft.au=Wiley%2C+H+S%3BWaters%2C+K+M%3BQuesenberry%2C+R+D%3BLiu%2C+T%3BKathmann%2C+L+E%3BSmith%2C+R+D%3BThrall%2C+B+D&rft.aulast=Wiley&rft.aufirst=H&rft.date=2006-02-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=10th+International+Meeting+of+the+Association+of+Biomolecular+Resource+Facilities+%28ABRF+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.abstractsonline.com/viewer/browseOptions.asp?MKey={2BD871C9-1496 -4A50-B2B9-A63C7F4917C9}&AKey={23DAB33D-792E-4D4B-988C-4ABBEE81051D} LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Method and Strain Comparison for Proteomic Evaluation of Salmonella Typhimurium T2 - 10th International Meeting of the Association of Biomolecular Resource Facilities (ABRF 2006) AN - 39923797; 4149623 JF - 10th International Meeting of the Association of Biomolecular Resource Facilities (ABRF 2006) AU - Mottaz, H M AU - Norbeck, A D AU - Adkins, J N AU - Rue, J AU - Gustin, J AU - Heffron, F AU - Smith, R D Y1 - 2006/02/11/ PY - 2006 DA - 2006 Feb 11 KW - Proteomics KW - Strains KW - Salmonella typhimurium UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39923797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=10th+International+Meeting+of+the+Association+of+Biomolecular+Resource+Facilities+%28ABRF+2006%29&rft.atitle=Method+and+Strain+Comparison+for+Proteomic+Evaluation+of+Salmonella+Typhimurium&rft.au=Mottaz%2C+H+M%3BNorbeck%2C+A+D%3BAdkins%2C+J+N%3BRue%2C+J%3BGustin%2C+J%3BHeffron%2C+F%3BSmith%2C+R+D&rft.aulast=Mottaz&rft.aufirst=H&rft.date=2006-02-11&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=10th+International+Meeting+of+the+Association+of+Biomolecular+Resource+Facilities+%28ABRF+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://www.abstractsonline.com/viewer/browseOptions.asp?MKey={2BD871C9-1496 -4A50-B2B9-A63C7F4917C9}&AKey={23DAB33D-792E-4D4B-988C-4ABBEE81051D} LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Biosensor based on self-assembling acetylcholinesterase on carbon nanotubes for flow injection/amperometric detection of organophosphate pesticides and nerve agents. AN - 70720987; 16448058 AB - A highly sensitive flow injection amperometric biosensor for organophosphate pesticides and nerve agents based on self-assembled acetylcholinesterase (AChE) on a carbon nanotube (CNT)-modified glassy carbon (GC) electrode is described. AChE is immobilized on the negatively charged CNT surface by alternatively assembling a cationic poly(diallyldimethylammonium chloride) (PDDA) layer and an AChE layer. Transmission electron microscopy images confirm the formation of layer-by-layer nanostructures on carboxyl-functionalized CNTs. Fourier transform infrared reflectance spectrum indicates the AChE was immobilized successfully on the CNT/PDDA surface. The unique sandwich-like structure (PDDA/AChE/PDDA) on the CNT surface formed by self-assembling provides a favorable microenvironment to keep the bioactivity of AChE. The electrocatalytic activity of CNT leads to a greatly improved electrochemical detection of the enzymatically generated thiocholine product, including a low oxidation overvoltage (+150 mV), higher sensitivity, and stability. The developed PDDA/AChE/PDDA/CNT/GC biosensor integrated into a flow injection system was used to monitor organophosphate pesticides and nerve agents, such as paraoxon. The sensor performance, including inhibition time and regeneration conditions, was optimized with respect to operating conditions. Under the optimal conditions, the biosensor was used to measure as low as 0.4 pM paraoxon with a 6-min inhibition time. The biosensor had excellent operational lifetime stability with no decrease in the activity of enzymes for more than 20 repeated measurements over a 1-week period. The developed biosensor system is an ideal tool for online monitoring of organophosphate pesticides and nerve agents. JF - Analytical chemistry AU - Liu, Guodong AU - Lin, Yuehe AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2006/02/01/ PY - 2006 DA - 2006 Feb 01 SP - 835 EP - 843 VL - 78 IS - 3 SN - 0003-2700, 0003-2700 KW - Chemical Warfare Agents KW - 0 KW - Enzymes, Immobilized KW - Nanotubes, Carbon KW - Organophosphorus Compounds KW - Pesticides KW - Thiocholine KW - 625-00-3 KW - Carbon KW - 7440-44-0 KW - Acetylcholinesterase KW - EC 3.1.1.7 KW - Index Medicus KW - Oxidation-Reduction KW - Thiocholine -- chemical synthesis KW - Electrodes KW - Enzymes, Immobilized -- chemistry KW - Electrochemistry KW - Carbon -- chemistry KW - Time Factors KW - Flow Injection Analysis -- instrumentation KW - Surface Properties KW - Flow Injection Analysis -- methods KW - Catalysis KW - Pesticides -- analysis KW - Organophosphorus Compounds -- analysis KW - Nanotubes, Carbon -- chemistry KW - Chemical Warfare Agents -- analysis KW - Acetylcholinesterase -- chemistry KW - Biosensing Techniques -- methods KW - Biosensing Techniques -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70720987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Biosensor+based+on+self-assembling+acetylcholinesterase+on+carbon+nanotubes+for+flow+injection%2Famperometric+detection+of+organophosphate+pesticides+and+nerve+agents.&rft.au=Liu%2C+Guodong%3BLin%2C+Yuehe&rft.aulast=Liu&rft.aufirst=Guodong&rft.date=2006-02-01&rft.volume=78&rft.issue=3&rft.spage=835&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-04-11 N1 - Date created - 2006-02-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Normalization approaches for removing systematic biases associated with mass spectrometry and label-free proteomics. AN - 67634241; 16457593 AB - Central tendency, linear regression, locally weighted regression, and quantile techniques were investigated for normalization of peptide abundance measurements obtained from high-throughput liquid chromatography-Fourier transform ion cyclotron resonance mass spectrometry (LC-FTICR MS). Arbitrary abundances of peptides were obtained from three sample sets, including a standard protein sample, two Deinococcus radiodurans samples taken from different growth phases, and two mouse striatum samples from control and methamphetamine-stressed mice (strain C57BL/6). The selected normalization techniques were evaluated in both the absence and presence of biological variability by estimating extraneous variability prior to and following normalization. Prior to normalization, replicate runs from each sample set were observed to be statistically different, while following normalization replicate runs were no longer statistically different. Although all techniques reduced systematic bias to some degree, assigned ranks among the techniques revealed that for most LC-FTICR-MS analyses linear regression normalization ranked either first or second. However, the lack of a definitive trend among the techniques suggested the need for additional investigation into adapting normalization approaches for label-free proteomics. Nevertheless, this study serves as an important step for evaluating approaches that address systematic biases related to relative quantification and label-free proteomics. JF - Journal of proteome research AU - Callister, Stephen J AU - Barry, Richard C AU - Adkins, Joshua N AU - Johnson, Ethan T AU - Qian, Wei-Jun AU - Webb-Robertson, Bobbie-Jo M AU - Smith, Richard D AU - Lipton, Mary S AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA. Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 277 EP - 286 VL - 5 IS - 2 SN - 1535-3893, 1535-3893 KW - Central Nervous System Stimulants KW - 0 KW - Peptides KW - Methamphetamine KW - 44RAL3456C KW - Index Medicus KW - Animals KW - Proteomics KW - Mice, Inbred C57BL KW - Mice KW - Deinococcus -- metabolism KW - Fourier Analysis KW - Bias (Epidemiology) KW - Methamphetamine -- toxicity KW - Mass Spectrometry KW - Corpus Striatum -- metabolism KW - Peptides -- analysis KW - Corpus Striatum -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67634241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+proteome+research&rft.atitle=Normalization+approaches+for+removing+systematic+biases+associated+with+mass+spectrometry+and+label-free+proteomics.&rft.au=Callister%2C+Stephen+J%3BBarry%2C+Richard+C%3BAdkins%2C+Joshua+N%3BJohnson%2C+Ethan+T%3BQian%2C+Wei-Jun%3BWebb-Robertson%2C+Bobbie-Jo+M%3BSmith%2C+Richard+D%3BLipton%2C+Mary+S&rft.aulast=Callister&rft.aufirst=Stephen&rft.date=2006-02-01&rft.volume=5&rft.issue=2&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Journal+of+proteome+research&rft.issn=15353893&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-03-29 N1 - Date created - 2006-02-06 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: J Biotechnol. 1999 Oct 8;75(2-3):291-5 [10617337] Anal Chem. 2005 Jan 15;77(2):400-6 [15649034] Rapid Commun Mass Spectrom. 2001;15(14):1214-21 [11445905] J Cell Biochem Suppl. 2001;Suppl 37:120-5 [11842437] Nucleic Acids Res. 2002 Feb 15;30(4):e15 [11842121] Proteomics. 2002 May;2(5):513-23 [11987125] Biotechniques. 2002 Jun;32(6):1316-20 [12074162] Proc Natl Acad Sci U S A. 2002 Aug 20;99(17):11049-54 [12177431] Anal Chem. 2002 Oct 1;74(19):4969-79 [12380819] Nat Genet. 2002 Dec;32 Suppl:496-501 [12454644] Bioinformatics. 2003 Jan 22;19(2):185-93 [12538238] Bioinformatics. 2003 May 1;19(7):825-33 [12724292] Mass Spectrom Rev. 2003 May-Jun;22(3):182-94 [12838544] Bioinformatics. 2003 Jul 22;19(11):1341-7 [12874045] BMC Bioinformatics. 2003 Sep 2;4:33 [12950995] Methods. 2003 Dec;31(4):265-73 [14597310] Anal Chem. 2003 Sep 1;75(17):4432-40 [14632047] Anal Chem. 2003 Sep 15;75(18):4818-26 [14674459] J Am Soc Mass Spectrom. 2004 Feb;15(2):212-32 [14766289] Acc Chem Res. 2004 Apr;37(4):269-78 [15096064] J Am Soc Mass Spectrom. 2004 Oct;15(10):1416-23 [15465354] Brain Res. 1997 Aug 22;766(1-2):113-20 [9359594] Rapid Commun Mass Spectrom. 1999;13(14):1427-37 [10407334] Nat Biotechnol. 1999 Oct;17(10):994-9 [10504701] Nucleic Acids Res. 2001 Jun 15;29(12):2549-57 [11410663] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Microbial reduction of Fe(III) in the Fithian and Muloorina illites; contrasting extents and rates of bioreduction AN - 51594362; 2006-034944 AB - Shewanella putrefaciens CN32 reduces Fe(III) within two illites which have different properties: the Fithian bulk fraction and the <0.2 mu m fraction of Muloorina. The Fithian illite contained 4.6% (w/w) total Fe, 81% of which was Fe(III). It was dominated by illite with some jarosite (approximately 32% of the total Fe(III)) and goethite (11% of the total Fe(III)). The Muloorina illite was pure and contained 9.2% Fe, 93% of which was Fe(III). Illite suspensions were buffered at pH 7 and were inoculated with CN32 cells with lactate as the electron donor. Select treatments included anthraquinone-2,6-disulfonate (AQDS) as an electron shuttle. Bioproduction of Fe(II) was determined by ferrozine analysis. The unreduced and bioreduced solids were characterized by Mossbauer spectroscopy, X-ray diffraction and transmission electron microscopy. The extent of Fe(III) reduction in the bulk Fithian illite was enhanced by the presence of AQDS (73%) with complete reduction of jarosite and goethite and partial reduction of illite. Mossbauer spectroscopy and chemical extraction determined that 21-25% of illite-associated Fe(III) was bioreduced. The extent of bioreduction was less in the absence of AQDS (63%) and only jarosite was completely reduced with partial reduction of goethite and illite. The XRD and TEM data revealed no significant illite dissolution or biogenic minerals, suggesting that illite was reduced in the solid state and biogenic Fe(II) from jarosite and goethite was either released to aqueous solution or adsorbed onto residual solid surfaces. In contrast, only 1% of the structural Fe(III) in Muloorina illite was bioreduced. The difference in the extent and rate of bioreduction between the two illites was probably due to the difference in layer charge and the total structural Fe content between the Fithian illite (0.56 per formula) and Muloorina illite (0.87). There may be other factors contributing to the observed differences, such as expandability, surface area and the arrangements of Fe in the octahedral sheets. The results of this study have important implications for predicting microbe-induced physical and chemical changes of clay minerals in soils and sediments. JF - Clays and Clay Minerals AU - Seabaugh, Jennifer L AU - Dong, Hailiang AU - Eberl, Dennis D AU - Morton, John P AU - Kim, Jinwook Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 67 EP - 79 PB - Clay Minerals Society, Clarkson, NY VL - 54 IS - 1 SN - 0009-8604, 0009-8604 KW - silicates KW - goethite KW - buffers KW - clay mineralogy KW - iron KW - ferric iron KW - chemical properties KW - oxides KW - spectra KW - reduction KW - geochemistry KW - pH KW - Mossbauer spectra KW - experimental studies KW - sulfates KW - Fithian Illite KW - rates KW - illite KW - Muloorina Illite KW - ferrous iron KW - jarosite KW - bioreduction KW - metals KW - sheet silicates KW - microorganisms KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51594362?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Far-infrared+spectra+of+layered+double+hydroxides%3B+experimental+results+and+molecular+dynamics+simulation+for+hydrotalcite&rft.au=Kirkpatrick%2C+R+James%3BWang%2C+Jianwei%3BKalinichev%2C+Andrey+G%3BHou%2C+X%3BAmonette%2C+James+E%3BAnonymous&rft.aulast=Kirkpatrick&rft.aufirst=R&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.ingentaconnect.com/content/cms/ccm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Clay Minerals Society | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 33 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioreduction; buffers; chemical properties; clay mineralogy; experimental studies; ferric iron; ferrous iron; Fithian Illite; geochemistry; goethite; illite; iron; jarosite; metals; microorganisms; Mossbauer spectra; Muloorina Illite; oxides; pH; rates; reduction; sheet silicates; silicates; spectra; sulfates DO - http://dx.doi.org/10.1346/CCMN.2006.0540109 ER - TY - JOUR T1 - A general simulator for reaction-based biogeochemical processes AN - 51493805; 2007-016041 AB - As more complex biogeochemical situations are being investigated (e.g., evolving reactivity, passivation of reactive surfaces, dissolution of sorbates), there is a growing need for biogeochemical simulators to flexibly and facilely address new reaction forms and rate laws. This paper presents an approach that accommodates this need to efficiently simulate general biogeochemical processes, while insulating the user from additional code development. The approach allows for the automatic extraction of fundamental reaction stoichiometry and thermodynamics from a standard chemistry database, and the symbolic entry of arbitrarily complex user-specified reaction forms, rate laws, and equilibria. The user-specified equilibria and kinetic rates (i.e., they are not defined in the format of the standardized database) are interpreted by the Maple V (Waterloo Maple) symbolic mathematical software package. FORTRAN 90 code is then generated by Maple for (1) the analytical Jacobian matrix (if preferred over the numerical Jacobian matrix) used in the Newton-Raphson solution procedure, and (2) the residual functions for governing equations, user-specified equilibrium expressions and rate laws. Matrix diagonalization eliminates the need to conceptualize the system of reactions as a tableau, which comprises a list of components, species, the stoichiometric matrix, and the formation equilibrium constant vector that forms the species from components (Morel and Hering, 1993), while identifying a minimum rank set of basis species with enhanced numerical convergence properties. The newly generated code, which is designed to operate in the BIOGEOCHEM biogeochemical simulator, is then compiled and linked into the BIOGEOCHEM executable. With these features, users can avoid recoding the simulator to accept new equilibrium expressions or kinetic rate laws, while still taking full advantage of the stoichiometry and thermodynamics provided by an existing chemical database. Thus, the approach introduces efficiencies in the specification of biogeochemical reaction networks and eliminates opportunities for mistakes in preparing input files and coding errors. Test problems are used to demonstrate the features of the procedure. JF - Computers & Geosciences AU - Fang, Yilin AU - Yabusaki, Steven B AU - Yeh, Gour-Tsyh Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 64 EP - 72 PB - Elsevier, Amsterdam VL - 32 IS - 1 SN - 0098-3004, 0098-3004 KW - numerical models KW - goethite KW - computer languages KW - biochemistry KW - equations KW - simulation KW - equilibrium KW - computer programs KW - BIOGEOCHEM KW - chemical reactions KW - Fortran KW - bacteria KW - data bases KW - oxides KW - reduction KW - thermodynamic properties KW - stoichiometry KW - kinetics KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51493805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=A+general+simulator+for+reaction-based+biogeochemical+processes&rft.au=Fang%2C+Yilin%3BYabusaki%2C+Steven+B%3BYeh%2C+Gour-Tsyh&rft.aulast=Fang&rft.aufirst=Yilin&rft.date=2006-02-01&rft.volume=32&rft.issue=1&rft.spage=64&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2005.05.003 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 19 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; BIOGEOCHEM; chemical reactions; computer languages; computer programs; data bases; equations; equilibrium; Fortran; geochemistry; goethite; kinetics; numerical models; oxides; reduction; simulation; stoichiometry; thermodynamic properties DO - http://dx.doi.org/10.1016/j.cageo.2005.05.003 ER - TY - JOUR T1 - Magnesium inhibition of calcite dissolution kinetics AN - 51489185; 2007-017956 AB - We present evidence of inhibition of calcite dissolution by dissolved magnesium through direct observations of the (104) surface using atomic force microscopy (AFM) and vertical scanning interferometry (VSI). Far from equilibrium, the pattern of magnesium inhibition is dependent on solution composition and specific to surface step geometry. In CO (sub 2) -free solutions (pH 8.8), dissolved magnesium brings about little inhibition even at concentrations of 0.8X10 (super -3) molal. At the same pH, magnesium concentrations of less than 0.05X10 (super -3) molal in carbonate-buffered solutions generate significant inhibition, although no changes in surface and etch pit morphology are observed. As concentrations exceed magnesite saturation, the dissolution rate shows little additional decrease; however, selective pinning of step edges results in unique etch pit profiles, seen in both AFM and VSI datasets. Despite the decreases in step velocity, magnesium addition in carbonated solutions also appears to activate the surface by increasing the nucleation rate of new defects. These relationships suggest that the modest depression of the bulk rate measured by VSI reflects a balance between competing reaction mechanisms that simultaneously depress the rate through selective inhibition of step movement, but also enhance reactivity on terraces by lowering the energy barrier to new etch pit formation. Abstract Copyright (2006) Elsevier, B.V. JF - Geochimica et Cosmochimica Acta AU - Arvidson, Rolf S AU - Collier, Martin AU - Davis, Kevin J AU - Vinson, Michael D AU - Amonette, James E AU - Luettge, Andreas Y1 - 2006/02/01/ PY - 2006 DA - 2006 Feb 01 SP - 583 EP - 594 PB - Elsevier, New York, NY VL - 70 IS - 3 SN - 0016-7037, 0016-7037 KW - alkaline earth metals KW - magnesium KW - patterns KW - solutes KW - magnesite KW - solution KW - interferometry KW - geometry KW - calcite KW - atomic force microscopy data KW - chemical reactions KW - saturation KW - phase equilibria KW - metals KW - kinetics KW - carbonates KW - pH KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51489185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Magnesium+inhibition+of+calcite+dissolution+kinetics&rft.au=Arvidson%2C+Rolf+S%3BCollier%2C+Martin%3BDavis%2C+Kevin+J%3BVinson%2C+Michael+D%3BAmonette%2C+James+E%3BLuettge%2C+Andreas&rft.aulast=Arvidson&rft.aufirst=Rolf&rft.date=2006-02-01&rft.volume=70&rft.issue=3&rft.spage=513&rft.isbn=&rft.btitle=&rft.title=Journal+of+Toxicology%3A+Cutaneous+and+Ocular+Toxicology&rft.issn=07313829&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 49 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-03-14 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atomic force microscopy data; calcite; carbonates; chemical reactions; geometry; interferometry; kinetics; magnesite; magnesium; metals; patterns; pH; phase equilibria; saturation; solutes; solution DO - http://dx.doi.org/10.1016/j.gca.2005.10.005 ER - TY - JOUR T1 - Determination of NAPL-water interfacial areas in well-characterized porous media AN - 51425722; 2007-058257 JF - Environmental Science & Technology, ES & T AU - Dobson, Richard AU - Schroth, Martin H AU - Oostrom, Mart AU - Zeyer, Josef Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 815 EP - 822 PB - American Chemical Society, Washington, DC VL - 40 IS - 3 SN - 0013-936X, 0013-936X KW - water KW - experimental studies KW - pollutants KW - prediction KW - pollution KW - porous materials KW - solution KW - hydrochemistry KW - environmental effects KW - nonaqueous phase liquids KW - models KW - water-rock interaction KW - surfactants KW - mathematical methods KW - tracers KW - testing KW - algorithms KW - thermodynamic properties KW - chemical composition KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51425722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Determination+of+NAPL-water+interfacial+areas+in+well-characterized+porous+media&rft.au=Dobson%2C+Richard%3BSchroth%2C+Martin+H%3BOostrom%2C+Mart%3BZeyer%2C+Josef&rft.aulast=Dobson&rft.aufirst=Richard&rft.date=2006-02-01&rft.volume=40&rft.issue=3&rft.spage=815&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes050037p L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - algorithms; chemical composition; environmental effects; experimental studies; hydrochemistry; mathematical methods; models; nonaqueous phase liquids; pollutants; pollution; porous materials; prediction; solution; surfactants; testing; thermodynamic properties; tracers; water; water pollution; water-rock interaction DO - http://dx.doi.org/10.1021/es050037p ER - TY - JOUR T1 - Unravelling abiogenic and biogenic sources of methane in the Earth's deep subsurface AN - 50867419; 2007-088624 AB - At four underground sites in Precambrian Shield rocks in Canada and South Africa, hydrocarbon and hydrogen gases exsolving from saline fracture waters are analyzed for compositional and isotopic signatures. Dominated by reduced gases such as CH (sub 4) , H (sub 2) and higher hydrocarbons (ethane, propane, butane), the most (super 13) C-enriched methane end-members at all four sites show a pattern of carbon and hydrogen isotopic values similar to abiogenic gases produced by water-rock interaction that have been identified previously at one site on the Precambrian Shield in Canada. The abiogenic nature of these gases was not previously recognized due to mixing with a second methane component produced by microbial processes. The microbial methane end-member is identified based on carbon and hydrogen isotopic signatures, and DNA gene amplification (PCR) data that indicate the presence of methanogens. A framework is presented to estimate the relative contribution of abiogenic versus microbial hydrocarbon gases at these sites. This approach has important implications for evaluation of potential abiogenic hydrocarbon reservoirs in a wide range of geologic settings, including the longstanding controversy concerning the possible contribution of abiogenic gases to economic petroleum hydrocarbon reservoirs. The association of high concentrations of H (sub 2) with (super 13) C-enriched CH (sub 4) end-members, and H (sub 2) depletion in the (super 13) C-depleted methanogenic end-members further suggests the possibility that abiogenic gases may support H (sub 2) autotrophy linked to methanogenesis in the deep subsurface. JF - Chemical Geology AU - Sherwood Lollar, Barbara AU - Lacrampe-Couloume, G AU - Slater, G F AU - Ward, J AU - Moser, D P AU - Gihring, T M AU - Lin, L H AU - Onstott, T C A2 - Henderson, Gideon M. A2 - Hilton, David R. A2 - Vance, Derek Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 328 EP - 339 PB - Elsevier, Amsterdam VL - 226 IS - 3-4 SN - 0009-2541, 0009-2541 KW - isotopes KW - enrichment KW - source rocks KW - aliphatic hydrocarbons KW - petroleum KW - Mars KW - stable isotopes KW - water-rock interaction KW - carbon KW - tectonics KW - South Africa KW - chemical composition KW - geochemistry KW - Witwatersrand KW - mines KW - methane KW - Kloof Mine KW - Copper Cliff Mine KW - Precambrian KW - Driefontein Mine KW - assemblages KW - Cochrane District Ontario KW - cosmochemistry KW - alkanes KW - samples KW - cratons KW - Ontario KW - terrestrial planets KW - shields KW - planets KW - organic compounds KW - biogenic processes KW - Canada KW - hydrogen KW - Southern Africa KW - bacteria KW - hydrocarbons KW - DNA KW - Kidd Creek Mine KW - Africa KW - C-13 KW - Eastern Canada KW - crust KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50867419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Unravelling+abiogenic+and+biogenic+sources+of+methane+in+the+Earth%27s+deep+subsurface&rft.au=Sherwood+Lollar%2C+Barbara%3BLacrampe-Couloume%2C+G%3BSlater%2C+G+F%3BWard%2C+J%3BMoser%2C+D+P%3BGihring%2C+T+M%3BLin%2C+L+H%3BOnstott%2C+T+C&rft.aulast=Sherwood+Lollar&rft.aufirst=Barbara&rft.date=2006-02-01&rft.volume=226&rft.issue=3-4&rft.spage=328&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2005.09.027 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 59 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - Africa; aliphatic hydrocarbons; alkanes; assemblages; bacteria; biogenic processes; C-13; Canada; carbon; chemical composition; Cochrane District Ontario; Copper Cliff Mine; cosmochemistry; cratons; crust; DNA; Driefontein Mine; Eastern Canada; enrichment; geochemistry; hydrocarbons; hydrogen; isotopes; Kidd Creek Mine; Kloof Mine; Mars; methane; mines; Ontario; organic compounds; petroleum; planets; Precambrian; samples; shields; source rocks; South Africa; Southern Africa; stable isotopes; tectonics; terrestrial planets; water-rock interaction; Witwatersrand DO - http://dx.doi.org/10.1016/j.chemgeo.2005.09.027 ER - TY - JOUR T1 - Nanostructures for enzyme stabilization AN - 20639133; 7638259 AB - Recent breakthroughs in nanotechnology have made various nanostructured materials more affordable for a broader range of applications. Although we are still at the beginning of exploring the use of these materials for biocatalysis, various nanostructures have been examined as hosts for enzyme immobilization via approaches including enzyme adsorption, covalent attachment, enzyme encapsulation, and sophisticated combinations of methods. This review discusses the stabilization mechanisms behind these diverse approaches; such as confinement, pore size and volume, charge interaction, hydrophobic interaction, and multipoint attachment. In particular, we will review recently reported approaches to improve the enzyme stability in various nanostructures such as nanoparticles, nanofibers, mesoporous materials, and single enzyme nanoparticles (SENs). In the form of SENs, each enzyme molecule is surrounded with a nanometer scale network, resulting in stabilization of enzyme activity without any serious limitation for the substrate transfer from solution to the active site. SENs can be further immobilized into mesoporous silica with a large surface area, providing a hierarchical approach for stable, immobilized enzyme systems for various applications, such as bioconversion, bioremediation, and biosensors. JF - Chemical Engineering Science AU - Kim, Jungbae AU - Grate, Jay W AU - Wang, Ping AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, Jungbae.Kim@pnl.gov Y1 - 2006/02// PY - 2006 DA - Feb 2006 SP - 1017 EP - 1026 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 61 IS - 3 SN - 0009-2509, 0009-2509 KW - Biotechnology Research Abstracts (through 1992) KW - Special Issue: Biomolecular Engineering KW - Bioremediation KW - Surface area KW - Immobilized enzymes KW - Enzymes KW - Hydrophobicity KW - Encapsulation KW - Biosensors KW - Pores KW - Silica KW - Reviews KW - bioconversion KW - Adsorption KW - nanoparticles KW - Immobilization KW - nanotechnology KW - W 30955:Biosensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20639133?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Engineering+Science&rft.atitle=Nanostructures+for+enzyme+stabilization&rft.au=Kim%2C+Jungbae%3BGrate%2C+Jay+W%3BWang%2C+Ping&rft.aulast=Kim&rft.aufirst=Jungbae&rft.date=2006-02-01&rft.volume=61&rft.issue=3&rft.spage=1017&rft.isbn=&rft.btitle=&rft.title=Chemical+Engineering+Science&rft.issn=00092509&rft_id=info:doi/10.1016%2Fj.ces.2005.05.067 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Enzymes; nanoparticles; Reviews; Encapsulation; Hydrophobicity; Bioremediation; Surface area; Silica; nanotechnology; bioconversion; Immobilized enzymes; Immobilization; Pores; Biosensors; Adsorption DO - http://dx.doi.org/10.1016/j.ces.2005.05.067 ER - TY - JOUR T1 - Swimming Behaviour of Juvenile Pacific Lamprey, Lampetra tridentata AN - 19736056; 7948018 AB - We collected actively migrating juvenile Pacific lamprey Lampetra tridentata [Richardson, J. 1836. Fauna Boreali-Americana; or the zoology of the northern parts of British America: containing descriptions of the objects of natural history collected on the late northern land expeditions, under the command of Sir John Franklin. R.N., Fauna Boreali-Americana, 327 pp.] from hydroelectric bypass facilities in the Columbia River and transferred them to the laboratory to study diel movement patterns and swimming ability. Volitional movement of lamprey was restricted mainly to night, with 94% of all swimming activity occurring during the 12 h dark period. Burst speed of juvenile lamprey (mean length 136 plus or minus 5 mm SD) ranged from 56 to 94 cm s super(-1) with a mean of 71 plus or minus 5 SD cm s super(-1) or an average speed of 5.2 s super(-1 )body lengths (BL). Sustained swim speed for 5 min test intervals ranged from 0 to 46 cm s super(-1) with a median of 23 cm s super(-1). Critical swimming speed was 36.0 plus or minus 10.0 SD cm s super(-1) and 2.4 plus or minus 0.6 SD BL s super(-1). We found no significant relationship between fish length and critical swimming speed. These findings show that swimming performance of juvenile Pacific lamprey is low compared to anadromous teleosts. Their poor swimming ability provides a challenge when they encounter man-made structures and reservoirs during the freshwater migration interval downstream to the Pacific Ocean. JF - Environmental Biology of Fishes AU - Dauble, Dennis D AU - Moursund, Russell A AU - Bleich, Matthew D AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA, 99352, USA, dd.dauble@pnl.gov Y1 - 2006/02// PY - 2006 DA - Feb 2006 SP - 167 EP - 171 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 75 IS - 2 SN - 0378-1909, 0378-1909 KW - Ecology Abstracts; Animal Behavior Abstracts; Oceanic Abstracts KW - Rivers KW - Juveniles KW - Swimming KW - Lampetra tridentata KW - Freshwater environments KW - Swimming behavior KW - Anadromous species KW - ISE, Pacific, New Zealand Island Terr., Niue I., Alofi, Sir KW - Migration KW - Teleostei KW - Petromyzontidae KW - Local movements KW - INE, USA, Columbia Estuary KW - Oceans KW - I, Pacific KW - Migrations KW - Expeditions KW - O 1070:Ecology/Community Studies KW - Y 25080:Orientation, Migration and Locomotion KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19736056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Biology+of+Fishes&rft.atitle=Swimming+Behaviour+of+Juvenile+Pacific+Lamprey%2C+Lampetra+tridentata&rft.au=Dauble%2C+Dennis+D%3BMoursund%2C+Russell+A%3BBleich%2C+Matthew+D&rft.aulast=Dauble&rft.aufirst=Dennis&rft.date=2006-02-01&rft.volume=18&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Issues+in+Science+and+Technology&rft.issn=07485492&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-01-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Juveniles; Local movements; Swimming; Anadromous species; Migrations; Expeditions; Rivers; Swimming behavior; Freshwater environments; Oceans; Migration; Petromyzontidae; Lampetra tridentata; Teleostei; INE, USA, Columbia Estuary; I, Pacific; ISE, Pacific, New Zealand Island Terr., Niue I., Alofi, Sir DO - http://dx.doi.org/10.1007/s10641-005-4698-7 ER - TY - JOUR T1 - Global transcriptomic analysis of Desulfovibrio vulgaris on different electron donors AN - 19321988; 7065795 AB - Whole-genome microarrays of Desulfovibrio vulgaris were used to determine relative transcript levels in cells grown to exponential or stationary phase on a medium containing either lactate or formate as electron donor. The results showed that 158 and 477 genes were differentially expressed when comparing exponential to stationary phase in lactate- or formate-based media, respectively; and 505 and 355 genes were responsive to the electron donor used at exponential or stationary phase, respectively. Functional analyses suggested that the differentially regulated genes were involved in almost every aspect of cellular metabolism, with genes involved in protein synthesis, carbon, and energy metabolism being the most regulated. The results suggested that HynBA-1 might function as a primary periplasmic hydrogenase responsible for oxidation of H sub(2) linked to the proton gradient in lactate-based medium, while several periplasmic hydrogenases including HynBA-1 and Hyd might carry out this role in formate-based medium. The results also indicated that the alcohol dehydrogenase and heterodisulfide reductase catalyzed pathway for proton gradient formation might be actively functioning for ATP synthesis in D. vulgaris. In addition, hierarchical clustering analysis using expression data across different electron donors and growth phases allowed the identification of the common electron donor independent changes in gene expression specifically associated with the exponential to stationary phase transition, and those specifically associated with the different electron donors independent of growth phase. The study provides the first global description and functional interpretation of transcriptomic response to growth phase and electron donor in D. vulgaris. JF - Antonie Van Leeuwenhoek AU - Zhang, Weiwen AU - Culley, David E AU - Scholten, Johannes CM AU - Hogan, Mike AU - Vitiritti, Luigi AU - Brockman, Fred J AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, 999, Richland, WA, 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 221 EP - 237 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de] VL - 89 IS - 2 SN - 0003-6072, 0003-6072 KW - ASFA 1: Biological Sciences & Living Resources; Microbiology Abstracts B: Bacteriology KW - Protein biosynthesis KW - Data processing KW - Energy metabolism KW - Biochemistry KW - Protons KW - Alcohol dehydrogenase KW - Transcription KW - ATP KW - Desulfovibrio vulgaris KW - DNA microarrays KW - stationary phase KW - Protein synthesis KW - Growth KW - Carbon KW - Oxidation KW - Lactic acid KW - Microorganisms KW - heterodisulfide reductase KW - Protein turnover KW - Hydrogenase KW - Dehydrogenases KW - Metabolism KW - Q1 08206:Physiology, biochemistry, biophysics KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19321988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Antonie+Van+Leeuwenhoek&rft.atitle=Global+transcriptomic+analysis+of+Desulfovibrio+vulgaris+on+different+electron+donors&rft.au=Zhang%2C+Weiwen%3BCulley%2C+David+E%3BScholten%2C+Johannes+CM%3BHogan%2C+Mike%3BVitiritti%2C+Luigi%3BBrockman%2C+Fred+J&rft.aulast=Zhang&rft.aufirst=Weiwen&rft.date=2006-02-01&rft.volume=89&rft.issue=2&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Antonie+Van+Leeuwenhoek&rft.issn=00036072&rft_id=info:doi/10.1007%2Fs10482-005-9024-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Protein synthesis; Growth; Biochemistry; Microorganisms; ATP; Metabolism; Dehydrogenases; Data processing; Protein biosynthesis; Energy metabolism; Protons; Alcohol dehydrogenase; Transcription; DNA microarrays; stationary phase; Carbon; Oxidation; Lactic acid; Protein turnover; heterodisulfide reductase; Hydrogenase; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1007/s10482-005-9024-z ER - TY - JOUR T1 - Naturally occurring radioactive materials in cargo at US borders AN - 17185102; 6858345 AB - In the USA and other countries large numbers of vehicles pass through border crossings each day. The illicit movement of radioactive sources is a concern that has resulted in the installation of radiation detection and identification instruments at border crossing points. This activity is judged to be necessary because of the possibility of an act of terrorism involving a radioactive source that may include any number of dangerous radionuclides. The problem of detecting, identifying and interdicting illicit radioactive sources is complicated by the fact that many materials present in cargo are somewhat radioactive. Some cargo contains naturally occurring radioactive material that may trigger radiation portal monitor alarms. Such nuisance alarms can be an operational limiting factor for screening of cargo at border crossings. Information about the nature of the radioactive materials in cargo that can interfere with the detection of radionuclides of concern is necessary to help anticipate and recognise likely sources of these nuisance alarms. JF - Packaging, Transport, Storage, and Security of Radioactive Material AU - Kouzes, R AU - Ely, J AU - Evans, J AU - Hensley, W AU - Lepel, E AU - McDonald, J AU - Schweppe, J AU - Siciliano, E AU - Strom, D AU - Woodring, M AD - Pacific Northwest National Laboratory, MS P8-20, P.O. Box 999, Richland, WA 99352, USA, Richard.Kouzes@pnl.gov Y1 - 2006/02// PY - 2006 DA - Feb 2006 SP - 11 EP - 17 VL - 17 IS - 1 SN - 1746-5095, 1746-5095 KW - border crossings KW - Health & Safety Science Abstracts KW - Storage KW - USA KW - terrorism KW - Transportation KW - Radioactive materials KW - Materials handling KW - Radioisotopes KW - security KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17185102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Packaging%2C+Transport%2C+Storage%2C+and+Security+of+Radioactive+Material&rft.atitle=Naturally+occurring+radioactive+materials+in+cargo+at+US+borders&rft.au=Kouzes%2C+R%3BEly%2C+J%3BEvans%2C+J%3BHensley%2C+W%3BLepel%2C+E%3BMcDonald%2C+J%3BSchweppe%2C+J%3BSiciliano%2C+E%3BStrom%2C+D%3BWoodring%2C+M&rft.aulast=Kouzes&rft.aufirst=R&rft.date=2006-02-01&rft.volume=17&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Packaging%2C+Transport%2C+Storage%2C+and+Security+of+Radioactive+Material&rft.issn=17465095&rft_id=info:doi/10.1179%2F174651006X95556 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Storage; terrorism; Transportation; Materials handling; Radioactive materials; Radioisotopes; security; USA DO - http://dx.doi.org/10.1179/174651006X95556 ER - TY - JOUR T1 - Metagenomic characterization of a deep subsurface microorganism AN - 1680754558; 2015-042812 JF - Astrobiology AU - Onstott, T C AU - Hazen, T C AU - Arkin, Adam AU - Alm, Eric AU - Brodie, Eoin AU - Chivian, Dylan AU - Richardson, Paul AU - Lapidus, Alla AU - Culley, David AU - Brockman, Fred AU - Lin, Li Hung AU - Gihring, Thomas AU - Moser, Duane P AU - Anonymous Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 112 EP - 113 PB - Mary Ann Liebert, Larchmont, NY VL - 6 IS - 1 SN - 1531-1074, 1531-1074 KW - mines KW - sulfates KW - oxidation KW - biologic evolution KW - genome KW - nucleic acids KW - boreholes KW - Southern Africa KW - DNA KW - Africa KW - South Africa KW - geochemistry KW - microorganisms KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1680754558?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=Metagenomic+characterization+of+a+deep+subsurface+microorganism&rft.au=Onstott%2C+T+C%3BHazen%2C+T+C%3BArkin%2C+Adam%3BAlm%2C+Eric%3BBrodie%2C+Eoin%3BChivian%2C+Dylan%3BRichardson%2C+Paul%3BLapidus%2C+Alla%3BCulley%2C+David%3BBrockman%2C+Fred%3BLin%2C+Li+Hung%3BGihring%2C+Thomas%3BMoser%2C+Duane+P%3BAnonymous&rft.aulast=Onstott&rft.aufirst=T&rft.date=2006-02-01&rft.volume=6&rft.issue=1&rft.spage=112&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/ L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Conference title - AbSciCon 2006 N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - PubXState - NY N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - Africa; biologic evolution; boreholes; DNA; genome; geochemistry; microorganisms; mines; nucleic acids; oxidation; South Africa; Southern Africa; sulfates ER - TY - JOUR T1 - Upscaling unsaturated hydraulic parameters for flow through heterogeneous anisotropic sediments AN - 1037240694; 2012-077214 AB - We compare two methods for determining the upscaled water characteristics and saturation-dependent anisotropy in unsaturated hydraulic conductivity from a field-scale injection test. In both approaches an effective medium approximation is used to reduce a porous medium of M textures to an equivalent homogenous medium. The first approach is a phenomenological approach based on homogenization and assumes that moisture-based Richards' equation can be treated like the convective-dispersive equation (CDE). The gravity term, dK (sub z) (xi )/d(xi ), analogous to the vertical convective velocity in the CDE, is determined from the temporal evolution of the plume centroid along the vertical coordinate allowing calculation of an upscaled K (sub z) (xi ). As with the dispersion tensor in the CDE, the rate of change of the second spatial moment in 3D space is used to calculate the water diffusivity tensor, D(xi ), from which an upscaled K(xi ) is calculated. The second approach uses the combined parameter scale inverse technique (CPSIT). Parameter scaling is used first to reduce the number of parameters to be estimated by a factor M. Upscaled parameters are then optimized by inverse modeling to produce an upscaled K(xi ) characterized by a pore tortuosity-connectivity tensor, L. Parameters for individual textures are finally determined from the optimized parameters by inverse scaling using scale factors determined a priori. Both methods produced upscaled K(xi ) that showed evidence of saturation dependent anisotropy. Flow predictions with the STOMP simulator, parameterized with upscaled parameters, were compared with field observations. Predictions based on the homogenization method were able to capture the mean plume behavior but could not reproduce the asymmetry caused by heterogeneity and lateral spreading. The CPSIT method captured the effects of heterogeneity and anisotropy and reduced the mean squared residual by nearly 90% compared to local-scale and upscaled parameters from the homogenization method. The Pacific Northwest National Laboratory is operated for the US Department of Energy by Battelle under Contract DE-AC05-76RL01830. JF - Advances in Water Resources AU - Ward, Andy L AU - Zhang, Z Fred AU - Gee, Glendon W Y1 - 2006/02// PY - 2006 DA - February 2006 SP - 268 EP - 280 PB - Elsevier, Oxford VL - 29 IS - 2 SN - 0309-1708, 0309-1708 KW - United States KW - dispersivity KW - moisture KW - unsaturated zone KW - observation wells KW - spatial distribution KW - Richards equation KW - sediments KW - hydrodynamics KW - heterogeneity KW - water KW - experimental studies KW - Washington KW - numerical models KW - homogenization KW - injection KW - connectivity KW - Hanford Site KW - porous materials KW - inverse problem KW - equations KW - convection KW - boreholes KW - heterogeneous materials KW - saturation KW - hydraulic conductivity KW - homogeneous materials KW - field studies KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Upscaling+unsaturated+hydraulic+parameters+for+flow+through+heterogeneous+anisotropic+sediments&rft.au=Zachara%2C+John+M%3BFredrickson%2C+Jim+K%3BSmith%2C+Steven+C%3BGassman%2C+Paul+L&rft.aulast=Zachara&rft.aufirst=John&rft.date=2001-01-01&rft.volume=65&rft.issue=1&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2800%2900500-7 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-08-31 N1 - SubjectsTermNotLitGenreText - boreholes; connectivity; convection; dispersivity; equations; experimental studies; field studies; Hanford Site; heterogeneity; heterogeneous materials; homogeneous materials; homogenization; hydraulic conductivity; hydrodynamics; injection; inverse problem; moisture; numerical models; observation wells; porous materials; Richards equation; saturation; sediments; spatial distribution; United States; unsaturated zone; Washington; water DO - http://dx.doi.org/10.1016/j.advwatres.2005.02.013 ER - TY - CPAPER T1 - Single Molecule Electron Transfer Process of Ruthenium Complexes T2 - 2006 Symposium on Biomedical Optics (BIOS 2006) AN - 39841515; 4101201 JF - 2006 Symposium on Biomedical Optics (BIOS 2006) AU - Hu, D. AU - Lu, P. Y1 - 2006/01/21/ PY - 2006 DA - 2006 Jan 21 KW - Ruthenium KW - Electron transfer KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39841515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2006+Symposium+on+Biomedical+Optics+%28BIOS+2006%29&rft.atitle=Single+Molecule+Electron+Transfer+Process+of+Ruthenium+Complexes&rft.au=Hu%2C+D.%3BLu%2C+P.&rft.aulast=Hu&rft.aufirst=D.&rft.date=2006-01-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2006+Symposium+on+Biomedical+Optics+%28BIOS+2006%29&rft.issn=&rft_id=info:doi/ L2 - http://spie.org/Conferences/Programs/06/pw/bios/PW06_BiOS_Final.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Oral exposure of PBDE-47 in fish: toxicokinetics and reproductive effects in Japanese Medaka (Oryzias latipes) and fathead minnows (Pimephales promelas). AN - 67642616; 16468398 AB - The toxicokinetics of 2,2,4,4-tetrabromodiphenyl ether (PBDE-47) was studied in the Japanese Medaka (Oryzias latipes) after a single oral exposure followed by termination at specific time points. The effects of repeated oral exposure to PBDE-47 on reproductive performance was assessed using a pair breeding experimental design with fathead minnows (Pimephales promelas) given daily PBDE-47 exposures for 25 days, during which fecundity was measured as an indicator of reproductive performance. Medaka and fathead minnows were orally exposed to PBDE-47 by bioencapsulation in brine shrimp, Artemia sp. In the medaka studies, measurable levels of PBDE-47 were detected in the carcass within 0.25 h with peak levels occurring at 8 h. The body levels of PBDE-47 slowly declined and were still 25% of peak levels at 624 h after dosing. Assimilation of the bioencapsulated dose was at least 80% and may well approach 100%. The PBDE-47 concentration-time profile was fitted to a one-compartment clearance-volume toxicokinetic model and the model-predicted value for elimination half-life was determined to be 281 h and the first-order absorption rate constant was Ka = 0.26 hr(-1). In the fathead minnow study, egg laying in the PBDE-treated breeding pairs stopped after 10 days. The condition factor of PBDE-treated males was significantly reduced (P <0.011) compared with control males, whereas no significant difference was observed in females. Histological examination revealed a greater than 50% reduction in mature sperm in PBDE-47 exposed minnows compared to controls. Collectively, these results suggest PBDE-47 is selectively toxic to sexually mature male fathead minnows. JF - Environmental science & technology AU - Muirhead, Elisabeth K AU - Skillman, Ann D AU - Hook, Sharon E AU - Schultz, Irvin R AD - Marine Sciences Laboratory, Battelle, Pacific Northwest National Laboratory, Sequim, Washington 98382, USA. Y1 - 2006/01/15/ PY - 2006 DA - 2006 Jan 15 SP - 523 EP - 528 VL - 40 IS - 2 SN - 0013-936X, 0013-936X KW - Halogenated Diphenyl Ethers KW - 0 KW - Hydrocarbons, Brominated KW - Phenyl Ethers KW - 2,2',4,4'-tetrabromodiphenyl ether KW - 0N97R5X10X KW - Index Medicus KW - Oryzias KW - Administration, Oral KW - Animals KW - Cyprinidae KW - Male KW - Female KW - Hydrocarbons, Brominated -- pharmacokinetics KW - Phenyl Ethers -- toxicity KW - Reproduction -- drug effects KW - Phenyl Ethers -- pharmacokinetics KW - Hydrocarbons, Brominated -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67642616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Oral+exposure+of+PBDE-47+in+fish%3A+toxicokinetics+and+reproductive+effects+in+Japanese+Medaka+%28Oryzias+latipes%29+and+fathead+minnows+%28Pimephales+promelas%29.&rft.au=Muirhead%2C+Elisabeth+K%3BSkillman%2C+Ann+D%3BHook%2C+Sharon+E%3BSchultz%2C+Irvin+R&rft.aulast=Muirhead&rft.aufirst=Elisabeth&rft.date=2006-01-15&rft.volume=40&rft.issue=2&rft.spage=523&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-07-05 N1 - Date created - 2006-02-10 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Correlation between mRNA and protein abundance in Desulfovibrio vulgaris: A multiple regression to identify sources of variations AN - 17458394; 6638456 AB - Parallel profiling of mRNA and protein on a global scale and integrative analysis of these two data types could provide additional insights into the metabolic mechanisms underlying complex biological systems. However, because mRNA and protein abundance are affected by many cellular and physical processes, there have been conflicting results on their correlation. Using whole-genome microarray and LC-MS/MS proteomic data collected from Desulfovibrio vulgaris grown under three different conditions, we systematically investigate the relationship between mRNA and protein abundance by a multiple regression approach, in which some of the key covariates that may affect mRNA-protein relationship were included. The results showed that mRNA abundance alone can explain only 20-28% of the total variation of protein abundance, suggesting mRNA-protein correlation can not be determined by mRNA abundance alone. Among various covariates, analytic variation of protein abundance is the major source for the variation of mRNA-protein correlation, which contributes to 34-44% of the total variation of mRNA-protein correlation. The cellular functional category of genes/proteins contributes 10-15% of the total variation of mRNA-protein correlation, with a more pronounced correlation of the two properties was observed for ''central intermediary metabolism'' and ''energy metabolism'' categories. In addition, protein stability also contributes 5% of the total variation of mRNA-protein correlation. The study presents the first quantitative analysis of the contributions of various biochemical and physical sources to the correlation of mRNA and protein abundance in D. vulgaris. JF - Biochemical and Biophysical Research Communications AU - Nie, L AU - Wu, G AU - Zhang, W AD - Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop P7-50, Richland, WA 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2006/01/13/ PY - 2006 DA - 2006 Jan 13 SP - 603 EP - 610 VL - 339 IS - 2 SN - 0006-291X, 0006-291X KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - Data processing KW - Energy metabolism KW - Liquid chromatography KW - Multiple regression analysis KW - proteomics KW - Desulfovibrio vulgaris KW - DNA microarrays KW - Mass spectroscopy KW - mRNA KW - J 02726:RNA and ribosomes KW - N 14810:Methods KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17458394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemical+and+Biophysical+Research+Communications&rft.atitle=Correlation+between+mRNA+and+protein+abundance+in+Desulfovibrio+vulgaris%3A+A+multiple+regression+to+identify+sources+of+variations&rft.au=Nie%2C+L%3BWu%2C+G%3BZhang%2C+W&rft.aulast=Nie&rft.aufirst=L&rft.date=2006-01-13&rft.volume=339&rft.issue=2&rft.spage=603&rft.isbn=&rft.btitle=&rft.title=Biochemical+and+Biophysical+Research+Communications&rft.issn=0006291X&rft_id=info:doi/10.1016%2Fj.bbrc.2005.11.055 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-05-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Data processing; Energy metabolism; Liquid chromatography; Multiple regression analysis; proteomics; DNA microarrays; Mass spectroscopy; mRNA; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1016/j.bbrc.2005.11.055 ER - TY - JOUR T1 - Effects of ionizing radiation on cellular structures, induced instability and carcinogenesis. AN - 67599286; 16383023 AB - Ionizing radiation is perhaps the most extensively studied human carcinogen. There have been a number of epidemiological studies on human populations exposed to radiation for medical or occupational reasons, as a result of protracted environmental exposures due to radiation accidents, or after atomic bombings. As a result of these studies exposure to ionizing radiation has been unambiguously linked to cancer causation. While cancer induction is the primary concern and the most important somatic effect of exposure to ionizing radiation, potential health risks do not only involve neoplastic diseases but also somatic mutations that might contribute to birth defects and ocular maladies, and heritable mutations that might impact on disease risks in future generations. Consequantly it is important we understand the long-term health risks associated with exposure to ionizing radiation. JF - EXS AU - Sowa, Marianne AU - Arthurs, Benjamin J AU - Estes, Brian J AU - Morgan, William F AD - Chemical Structure & Dynamics, Pacific Northwest National Laboratory, MS K8-88, 3335 Q Ave, Richland, WA 99352, USA. marianne.sowa@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 293 EP - 301 IS - 96 SN - 1023-294X, 1023-294X KW - Index Medicus KW - Humans KW - Radiation, Ionizing KW - Genomic Instability KW - Cell Transformation, Neoplastic -- radiation effects KW - Neoplasms, Radiation-Induced -- genetics KW - Cellular Structures -- radiation effects KW - Neoplasms -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67599286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=EXS&rft.atitle=Effects+of+ionizing+radiation+on+cellular+structures%2C+induced+instability+and+carcinogenesis.&rft.au=Sowa%2C+Marianne%3BArthurs%2C+Benjamin+J%3BEstes%2C+Brian+J%3BMorgan%2C+William+F&rft.aulast=Sowa&rft.aufirst=Marianne&rft.date=2006-01-01&rft.volume=&rft.issue=96&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=EXS&rft.issn=1023294X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-02-16 N1 - Date created - 2005-12-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Understanding the dynamics of collaborative multi-party discourse. AN - 57678175; 00491167 AB - In this paper, we discuss the efforts underway at the Pacific Northwest National Laboratory in understanding the dynamics of multi-party discourse across a number of communication modalities, such as email, instant messaging traffic and meeting data. Two prototype systems are discussed. The Conversation Analysis Tool (ChAT) is an experimental test-bed for the development of computational linguistic components and enables users to easily identify topics or persons of interest within multi-party conversations, including who talked to whom, when, the entities that were discussed, etc. The Retrospective Analysis of Communication Events (RACE) prototype, leveraging many of the ChAT components, is an application built specifically for knowledge workers and focuses on merging different types of communication data so that the underlying message can be discovered in an efficient, timely fashion. (Author abstract) JF - Information Visualization AU - Cowell, Andrew J AU - Gregory, Michelle L AU - Bruce, Joe AU - Haack, Jereme AU - Love, Doug AU - Rose, Stuart AU - Andrew, Adrienne H AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K7-28, Richland, WA 99352, U.S.A. andrew@pnl.gov Y1 - 2006/01// PY - 2006 DA - January 2006 SP - 250 EP - 259 PB - Palgrave Macmillan Ltd VL - 5 IS - 4 SN - 1473-8716, 1473-8716 KW - Discourse analysis KW - Pacific Northwest National Laboratory KW - Computational linguistics KW - Communications technology KW - 14.19: COMPUTER APPLICATIONS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/57678175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Alisa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Information+Visualization&rft.atitle=Understanding+the+dynamics+of+collaborative+multi-party+discourse.&rft.au=Cowell%2C+Andrew+J%3BGregory%2C+Michelle+L%3BBruce%2C+Joe%3BHaack%2C+Jereme%3BLove%2C+Doug%3BRose%2C+Stuart%3BAndrew%2C+Adrienne+H&rft.aulast=Cowell&rft.aufirst=Andrew&rft.date=2006-01-01&rft.volume=5&rft.issue=4&rft.spage=250&rft.isbn=&rft.btitle=&rft.title=Information+Visualization&rft.issn=14738716&rft_id=info:doi/10.1057%2Fpalgrave.ivs.9500139 LA - English DB - Library & Information Science Abstracts (LISA) N1 - Date revised - 2007-05-28 N1 - Last updated - 2016-09-27 N1 - SubjectsTermNotLitGenreText - Communications technology; Computational linguistics; Discourse analysis; Pacific Northwest National Laboratory DO - http://dx.doi.org/10.1057/palgrave.ivs.9500139 ER - TY - JOUR T1 - Walking the path: a new journey to explore and discover through visual analytics. AN - 57674807; 00491166 AB - Under the leadership of the US Department of Homeland Security (DHS), researchers at the Pacific Northwest National Laboratory (PNNL) established a research center focusing on the discipline of visual analytics in 2004. A year later, the center led a multidisciplinary panel representing academia, industry, and government to formally define directions and priorities for future research and development (R&D) for visual analytics tools. The R&D agenda, Illuminating the Path, defines the term visual analytics as 'the science of analytical reasoning facilitated by interactive visual interfaces'. This article describes our progress to date in walking that path. We briefly describe the background of the subject, present major professional activities and accomplishments of its community, and highlight some of the ongoing R&D efforts being carried out by researchers at PNNL to fulfill the requirements and missions of a new discipline that promises to change the way we deal with today's information. (Author abstract) JF - Information Visualization AU - Wong, Pak Chung AU - Rose, Stuart J AU - Chin, George AU - Frincke, Deborah A AU - May, Richard AU - Posse, Christian AU - Sanfilippo, Antonio AU - Thomas, Jim AD - Pacific Northwest National Laboratory, P.O. Box 999, K7-28, Richland, WA 99352, U.S.A. pak.wong@pnl.gov Y1 - 2006/01// PY - 2006 DA - January 2006 SP - 237 EP - 249 PB - Palgrave Macmillan Ltd VL - 5 IS - 4 SN - 1473-8716, 1473-8716 KW - Pacific Northwest National Laboratory KW - Interfaces KW - Visualization KW - Data analysis KW - Knowledge discovery KW - Interactive systems KW - 14.19: COMPUTER APPLICATIONS UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/57674807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Alisa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Information+Visualization&rft.atitle=Walking+the+path%3A+a+new+journey+to+explore+and+discover+through+visual+analytics.&rft.au=Wong%2C+Pak+Chung%3BRose%2C+Stuart+J%3BChin%2C+George%3BFrincke%2C+Deborah+A%3BMay%2C+Richard%3BPosse%2C+Christian%3BSanfilippo%2C+Antonio%3BThomas%2C+Jim&rft.aulast=Wong&rft.aufirst=Pak&rft.date=2006-01-01&rft.volume=5&rft.issue=4&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Information+Visualization&rft.issn=14738716&rft_id=info:doi/10.1057%2Fpalgrave.ivs.9500133 LA - English DB - Library & Information Science Abstracts (LISA) N1 - Date revised - 2007-05-28 N1 - Last updated - 2016-09-27 N1 - SubjectsTermNotLitGenreText - Interactive systems; Visualization; Interfaces; Data analysis; Pacific Northwest National Laboratory; Knowledge discovery DO - http://dx.doi.org/10.1057/palgrave.ivs.9500133 ER - TY - JOUR T1 - Effects of pH, temperature, and aqueous organic material on the dissolution kinetics of meta-autunite minerals, (Na, Ca) (sub 2-1) [(UO (sub 2) )(PO (sub 4) )] (sub 2) . 3H (sub 2) O AN - 51620653; 2006-022868 AB - Autunite-group minerals have been frequently identified in contaminated sediments as the long-term controlling phase of U. Under these conditions, the mobility of U in subsurface pore waters is limited by the rate of dissolution of autunite and meta-autunite group minerals, X (super (n)*) (sub 3-n) [(UO (sub 2) )(PO (sub 4) )] (sub 2) .xH (sub 2) O, where X = Ca or Na. Single-pass flow-through (SPFT) tests were conducted to quantify the dissolution kinetics of natural Ca meta-autunite, Ca[(UO (sub 2) )(PO (sub 4) )] (sub 2) .3H (sub 2) O, and synthetic Na meta-autunite, Na (sub 2) [(UO (sub 2) )(PO (sub 4) )] (sub 2) .3H (sub 2) O, as a function of pH (7-10) and temperature (5-70 degrees C) in the presence and absence of aqueous organic material. The data indicate that release of U and P are non-stoichiometric over the range of experimental conditions investigated. In a 0.1 M NH (sub 4) OH buffer solution, acquisition of valid dissolution rate data was limited by uramphite solubility, NH (sub 4) [(UO (sub 2) )(PO (sub 4) )] (sub 2) .xH (sub 2) O. Dissolution rates obtained in a 0.01 M TRIS [tris (hydroxymethyl) aminomethane] buffered solution increased by a factor of approximately 100X over the pH interval of 7 to 10 (eta = 0.90 + or - 0.08), irrespective of temperature. At constant pH the rate data showed a minor increase with temperature. Data from experiments using a more concentrated 0.05 M TRIS buffer exhibited a approximately 35-fold increase in rates compared to those in a 0.01 M TRIS buffer at constant temperature and pH. The difference in release rate between interlayer cation (Na (super +) or Ca (super 2+) ) and U is approximately 10,000 in neutral solutions; however, the difference diminishes to approximately 10 at higher pH values. The combination of structural dissolution and ion exchange explain these trends in interlayer cation behavior. Data presented here illustrate the significance of pH and dissolved organic material on the dissolution of autunite minerals. JF - American Mineralogist AU - Wellman, Dawn M AU - Icenhower, Jonathan P AU - Gamerdinger, Amy P AU - Forrester, Steven W Y1 - 2006/01// PY - 2006 DA - January 2006 SP - 143 EP - 158 PB - Mineralogical Society of America, Washington, DC VL - 91 IS - 1 SN - 0003-004X, 0003-004X KW - autunite KW - experimental studies KW - techniques KW - phosphates KW - solution KW - temperature KW - organic compounds KW - metals KW - uranium KW - kinetics KW - actinides KW - SEM data KW - pH KW - instruments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51620653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Effects+of+pH%2C+temperature%2C+and+aqueous+organic+material+on+the+dissolution+kinetics+of+meta-autunite+minerals%2C+%28Na%2C+Ca%29+%28sub+2-1%29+%5B%28UO+%28sub+2%29+%29%28PO+%28sub+4%29+%29%5D+%28sub+2%29+.+3H+%28sub+2%29+O&rft.au=Wellman%2C+Dawn+M%3BIcenhower%2C+Jonathan+P%3BGamerdinger%2C+Amy+P%3BForrester%2C+Steven+W&rft.aulast=Wellman&rft.aufirst=Dawn&rft.date=2006-01-01&rft.volume=91&rft.issue=1&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2006.1807 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - actinides; autunite; experimental studies; instruments; kinetics; metals; organic compounds; pH; phosphates; SEM data; solution; techniques; temperature; uranium DO - http://dx.doi.org/10.2138/am.2006.1807 ER - TY - JOUR T1 - Dissolution kinetics of pyrochlore ceramics for the disposition of plutonium AN - 51619300; 2006-022855 AB - Single-pass flow-through (SPFT) experiments were conducted on a set of non-radioactive Ti-based ceramics at 90 degrees C and pH = 2 to 12. The specimens contained 27.9 to 35.8 wt% CeO (sub 2) as a surrogate for UO (sub 2) and PuO (sub 2) . Compositions were formulated as TiO (sub 2) -saturated pyrochlore (CeP1) and pyrochlore-rich baseline (CePB1) ceramic waste forms. Pyrochlore + Hf-rutile and pyrochlore + perovskite + Hf-rutile constituted the major phases in the CeP1 and CePB1 ceramics, respectively. Results from dissolution experiments between pH = 2 to 12 indicate a shallow pH-dependence with an ill-defined minimum. Element release rates determined from experiments over a range of sample surface areas (S) and flow rates (q) indicate that dissolution rates become independent of q/S values at 10 (super -8) to 10 (super -7) m/s. Dissolution rates dropped sharply at lower values of q/S, indicating rates that are subject to solution saturation effects as dissolved constituents become concentrated. Forward dissolution rates were 1.3(0.30) X 10 (super -3) and 5.5(1.3) X 10 (super -3) g/m (super 2) .d for CeP1 and CePB1 ceramics, respectively. Dissolution rates obtained in other laboratories compare well to the findings of this study, once the rate data are placed in the context of solution saturation state. These results make progress toward an evaluation of CeO (sub 2) as a surrogate for UO (sub 2) and PuO (sub 2) as well as establishing a baseline for comparison with radiation-damaged specimens. JF - American Mineralogist AU - Icenhower, Jonathan P AU - Strachan, Denis M AU - McGrail, B Pete AU - Scheele, Randall D AU - Rodriguez, Elsa A AU - Steele, Jackie L AU - Legore, Virginia L Y1 - 2006/01// PY - 2006 DA - January 2006 SP - 39 EP - 53 PB - Mineralogical Society of America, Washington, DC VL - 91 IS - 1 SN - 0003-004X, 0003-004X KW - X-ray diffraction data KW - amorphous materials KW - plutonium KW - radiation damage KW - crystal structure KW - solution KW - radioactive waste KW - pyrochlore KW - phase equilibria KW - metals KW - waste disposal KW - ceramic materials KW - kinetics KW - actinides KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51619300?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Dissolution+kinetics+of+pyrochlore+ceramics+for+the+disposition+of+plutonium&rft.au=Icenhower%2C+Jonathan+P%3BStrachan%2C+Denis+M%3BMcGrail%2C+B+Pete%3BScheele%2C+Randall+D%3BRodriguez%2C+Elsa+A%3BSteele%2C+Jackie+L%3BLegore%2C+Virginia+L&rft.aulast=Icenhower&rft.aufirst=Jonathan&rft.date=2006-01-01&rft.volume=91&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2006.1709 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 68 N1 - PubXState - DC N1 - Document feature - illus. incl. 10 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - actinides; amorphous materials; ceramic materials; crystal structure; kinetics; metals; phase equilibria; plutonium; pyrochlore; radiation damage; radioactive waste; solution; waste disposal; X-ray diffraction data DO - http://dx.doi.org/10.2138/am.2006.1709 ER - TY - JOUR T1 - Magnetostratigraphic evidence from the Cold Creek bar for onset of ice-age cataclysmic floods in eastern Washington during the early Pleistocene AN - 51580488; 2006-047815 AB - This study provides a detailed magnetostratigraphy of sediments composing the Cold Creek cataclysmic flood bar in the Pasco Basin, Washington. Our interpretation suggests onset of Missoula floods or similar events prior to 1.1 myr, later than previously suggested by Bjornstad et al. [Bjornstad, B. N., Fecht, K. R., Pluhar, C. J., 2001. Long history of pre-Wisconsin, Ice Age cataclysmic floods: evidence from southeastern Washington State. Journal of Geology 109 (6), 695-713]. Nonetheless these data suggest that Channeled Scabland features formed over a much longer timespan than commonly cited, that continental ice sheets of the early Pleistocene reached as far south as those of the late Pleistocene, and that similar physiography existed in eastern Washington and perhaps Montana to both generate and route Missoula-flood-like events. This study adds paleomagnetic polarity results from 213 new samples of silts and sands derived from nine new drill cores penetrating the Cold Creek cataclysmic flood bar to our previous database of 53 samples from four boreholes, resulting in a much more robust and detailed magnetostratigraphy. Rock magnetic studies on these sediments show pure magnetite to be the predominant remanence-carrying magnetic mineral, ruling out widespread remagnetization by secondary mineralization. The magnetostratigraphy at eastern Cold Creek bar is characterized by a normal polarity interval bracketed by reversed polarities. Equating the normal zone with the Jaramillo subchron (0.99-1.07 myr) affords the simplest correlation to the magnetic polarity timescale. Western Cold Creek bar was likely deposited during the Brunhes chron (0-0.78 myr) since it exhibits mainly normal polarities with only two thin reversed-polarity horizons that we interpret as magnetic excursions during the Brunhes. JF - Quaternary Research AU - Pluhar, Christopher J AU - Bjornstad, Bruce N AU - Reidel, Stephen P AU - Coe, Robert S AU - Nelson, Paul B Y1 - 2006/01// PY - 2006 DA - January 2006 SP - 123 EP - 135 PB - Elsevier, New York, NY VL - 65 IS - 1 SN - 0033-5894, 0033-5894 KW - United States KW - relative age KW - Cold Creek KW - Brunhes Chron KW - glacial extent KW - geologic hazards KW - magnetization KW - eastern Washington KW - magnetostratigraphy KW - paleoclimatology KW - cores KW - magnetic properties KW - Cenozoic KW - remanent magnetization KW - dates KW - glacial environment KW - Pasco Basin KW - floods KW - oxides KW - paleosols KW - Matuyama Chron KW - depositional environment KW - lower Pleistocene KW - Hanford Formation KW - Washington KW - upper Cenozoic KW - Quaternary KW - interglacial environment KW - Lake Missoula KW - Hanford Site KW - paleomagnetism KW - Jaramillo Subchron KW - upper Quaternary KW - magnetic susceptibility KW - Pleistocene KW - Channeled Scabland KW - magnetite KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51580488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Quaternary+Research&rft.atitle=Magnetostratigraphic+evidence+from+the+Cold+Creek+bar+for+onset+of+ice-age+cataclysmic+floods+in+eastern+Washington+during+the+early+Pleistocene&rft.au=Pluhar%2C+Christopher+J%3BBjornstad%2C+Bruce+N%3BReidel%2C+Stephen+P%3BCoe%2C+Robert+S%3BNelson%2C+Paul+B&rft.aulast=Pluhar&rft.aufirst=Christopher&rft.date=2006-01-01&rft.volume=65&rft.issue=1&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Quaternary+Research&rft.issn=00335894&rft_id=info:doi/10.1016%2Fj.yqres.2005.06.011 L2 - http://www.sciencedirect.com/science/journal/00335894 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 37 N1 - PubXState - NY N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Battelle Memorial Institute contracts 4584 and 403148-A-B3 N1 - Last updated - 2012-06-07 N1 - CODEN - QRESAV N1 - SubjectsTermNotLitGenreText - Brunhes Chron; Cenozoic; Channeled Scabland; Cold Creek; cores; dates; depositional environment; eastern Washington; floods; geologic hazards; glacial environment; glacial extent; Hanford Formation; Hanford Site; interglacial environment; Jaramillo Subchron; Lake Missoula; lower Pleistocene; magnetic properties; magnetic susceptibility; magnetite; magnetization; magnetostratigraphy; Matuyama Chron; oxides; paleoclimatology; paleomagnetism; paleosols; Pasco Basin; Pleistocene; Quaternary; relative age; remanent magnetization; United States; upper Cenozoic; upper Quaternary; Washington DO - http://dx.doi.org/10.1016/j.yqres.2005.06.011 ER - TY - JOUR T1 - Chemical bonding in sulfide minerals AN - 51538309; 2006-075677 JF - Reviews in Mineralogy and Geochemistry AU - Vaughan, David J AU - Rosso, Kevin M A2 - Vaughan, David J. Y1 - 2006 PY - 2006 DA - 2006 SP - 231 EP - 264 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 61 SN - 1529-6466, 1529-6466 KW - marcasite KW - sphalerite KW - crystal structure KW - bonding KW - lollingite KW - quantitative analysis KW - arsenides KW - sulfosalts KW - arsenopyrite KW - valency KW - crystal chemistry KW - sulfides KW - tetrahedrite KW - sulfantimonites KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51538309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Chemical+bonding+in+sulfide+minerals&rft.au=Vaughan%2C+David+J%3BRosso%2C+Kevin+M&rft.aulast=Vaughan&rft.aufirst=David&rft.date=2006-01-01&rft.volume=61&rft.issue=&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 160 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - arsenides; arsenopyrite; bonding; crystal chemistry; crystal structure; lollingite; marcasite; quantitative analysis; sphalerite; sulfantimonites; sulfides; sulfosalts; tetrahedrite; valency ER - TY - JOUR T1 - Sulfide mineral surfaces AN - 51538243; 2006-075681 JF - Reviews in Mineralogy and Geochemistry AU - Rosso, Kevin M AU - Vaughan, David J A2 - Vaughan, David J. Y1 - 2006 PY - 2006 DA - 2006 SP - 505 EP - 556 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 61 SN - 1529-6466, 1529-6466 KW - surface properties KW - enargite KW - millerite KW - sphalerite KW - covellite KW - crystal structure KW - EXAFS KW - X-ray spectra KW - XANES spectra KW - synchrotron radiation KW - atomic force microscopy data KW - sulfosalts KW - pyrite KW - spectra KW - sulfides KW - sulfarsenates KW - spectroscopy KW - pyrrhotite KW - molybdenite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51538243?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Sulfide+mineral+surfaces&rft.au=Rosso%2C+Kevin+M%3BVaughan%2C+David+J&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2006-01-01&rft.volume=35&rft.issue=1&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 205 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; covellite; crystal structure; enargite; EXAFS; millerite; molybdenite; pyrite; pyrrhotite; spectra; spectroscopy; sphalerite; sulfarsenates; sulfides; sulfosalts; surface properties; synchrotron radiation; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Reactivity of sulfide mineral surfaces AN - 51537181; 2006-075682 JF - Reviews in Mineralogy and Geochemistry AU - Rosso, Kevin M AU - Vaughan, David J A2 - Vaughan, David J. Y1 - 2006 PY - 2006 DA - 2006 SP - 557 EP - 607 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 61 SN - 1529-6466, 1529-6466 KW - surface properties KW - X-ray spectra KW - infrared spectra KW - FTIR spectra KW - mackinawite KW - galena KW - arsenides KW - laurite KW - pyrite KW - arsenopyrite KW - spectra KW - sulfides KW - pyrrhotite KW - troilite KW - molybdenite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51537181?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Reactivity+of+sulfide+mineral+surfaces&rft.au=Rosso%2C+Kevin+M%3BVaughan%2C+David+J&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2006-01-01&rft.volume=61&rft.issue=&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 205 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - arsenides; arsenopyrite; FTIR spectra; galena; infrared spectra; laurite; mackinawite; molybdenite; pyrite; pyrrhotite; spectra; sulfides; surface properties; troilite; X-ray spectra ER - TY - JOUR T1 - PUB working group on orographic precipitation, surface water and groundwater interactions, and their impacts on water resources AN - 51495879; 2007-013936 AB - This paper introduces the motivations, objectives, and scope of a PUB working group to investigate the linkage between orographic precipitation, surface water and groundwater interactions, and their impacts on water resources. The ultimate goal of the working group is to assess the reduction of uncertainties in hydrological predictions for ungauged basins through improvements of two important physical processes of land-atmosphere interactions: orographic precipitation and surface water and groundwater interactions. In particular, we will focus on, in our current work, cold season orographic precipitation, snowmelt recharge to groundwater bodies, and their impacts on water resources. Our objectives are to: (1) improve the prediction of cold season orographic precipitation processes in mountainous regions and estimate their impacts on hydrological predictions and regional climate through land-atmosphere interactions; (2) improve our understanding of snowmelt recharge to groundwater bodies and surface water and groundwater interactions; and (3) improve the management of water resources through improved understanding and predictions of snowpack and surface water and groundwater interactions. Preliminary results are presented based on a regional-scale coupled land-atmosphere model that has been recently developed to address science questions of the working group. The model includes a subgrid parameterization of orographic precipitation and dynamic surface water-groundwater interactions. Simulations with and without the dynamic groundwater component have been compared to investigate the potential impacts of surface water and groundwater interactions. JF - IAHS-AISH Publication AU - Xu, Liang AU - Leung, L Ruby AU - Huang, Maoyi AU - Quan, Yun AU - Wigmosta, Mark S AU - Matanga, George B AU - Matthews, Dave A2 - Sivapalan, Murugesu A2 - Wagener, Thorsten A2 - Uhlenbrook, Stefan A2 - Zehe, Erwin A2 - Lakshmi, Venkat A2 - Xu, Liang A2 - Tachikawa, Yasuto A2 - Kumar, Praveen Y1 - 2006 PY - 2006 DA - 2006 SP - 505 EP - 515 PB - International Association of Hydrological Sciences VL - 303 SN - 0144-7815, 0144-7815 KW - United States KW - water quality KW - topsoil KW - moisture KW - impact statements KW - coupling KW - atmospheric precipitation KW - climate change KW - ground water KW - mountains KW - Western U.S. KW - snow KW - drainage basins KW - ecology KW - uncertainty KW - soils KW - hydrology KW - soil profiles KW - surface water KW - prediction KW - boundary conditions KW - models KW - recharge KW - ungauged basins KW - water resources KW - meltwater KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51495879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IAHS-AISH+Publication&rft.atitle=PUB+working+group+on+orographic+precipitation%2C+surface+water+and+groundwater+interactions%2C+and+their+impacts+on+water+resources&rft.au=Xu%2C+Liang%3BLeung%2C+L+Ruby%3BHuang%2C+Maoyi%3BQuan%2C+Yun%3BWigmosta%2C+Mark+S%3BMatanga%2C+George+B%3BMatthews%2C+Dave&rft.aulast=Xu&rft.aufirst=Liang&rft.date=2006-01-01&rft.volume=303&rft.issue=&rft.spage=505&rft.isbn=1901502481&rft.btitle=&rft.title=IAHS-AISH+Publication&rft.issn=01447815&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - VIIth IAHS general assembly; symposium S7; Predictions in ungauged basins; promise and progress N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 35 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PIHSD9 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; boundary conditions; climate change; coupling; drainage basins; ecology; ground water; hydrology; impact statements; meltwater; models; moisture; mountains; prediction; recharge; snow; soil profiles; soils; surface water; topsoil; uncertainty; ungauged basins; United States; water quality; water resources; Western U.S. ER - TY - JOUR T1 - The distribution of presolar grains in CI and CO meteorites AN - 51446281; 2007-046726 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Marhas, K K AU - Hoppe, P AU - Stadermann, F J AU - Floss, C AU - Lea, A S AU - Anonymous Y1 - 2006 PY - 2006 DA - 2006 EP - unpaginated PB - Lunar and Planetary Science Conference, Houston, TX VL - 37 KW - silicates KW - Northwest Africa Meteorites KW - stony meteorites KW - oxygen KW - ion probe data KW - isotopes KW - mass spectra KW - Tagish Lake Meteorite KW - stable isotopes KW - nitrogen KW - Murchison Meteorite KW - CO chondrites KW - meteorites KW - CR chondrites KW - silicon carbide KW - presolar grains KW - carbon KW - geochemical anomalies KW - oxides KW - spectra KW - chondrites KW - O-17/O-16 KW - CI chondrites KW - Yamato Meteorites KW - N-15/N-14 KW - AGB stars KW - isotope ratios KW - supernovas KW - C-13/C-12 KW - NWA 530 KW - Renazzo Meteorite KW - O-18/O-16 KW - carbonaceous chondrites KW - distribution KW - stars KW - Y 81025 KW - NanoSIMS KW - CM chondrites KW - SEM data KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51446281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=The+distribution+of+presolar+grains+in+CI+and+CO+meteorites&rft.au=Marhas%2C+K+K%3BHoppe%2C+P%3BStadermann%2C+F+J%3BFloss%2C+C%3BLea%2C+A+S%3BAnonymous&rft.aulast=Marhas&rft.aufirst=K&rft.date=2006-01-01&rft.volume=37&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1959.pdf LA - English DB - GeoRef N1 - Conference title - Thirty-seventh lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 6, 2006 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - AGB stars; C-13/C-12; carbon; carbonaceous chondrites; chondrites; CI chondrites; CM chondrites; CO chondrites; CR chondrites; distribution; geochemical anomalies; ion probe data; isotope ratios; isotopes; mass spectra; meteorites; Murchison Meteorite; N-15/N-14; NanoSIMS; nitrogen; Northwest Africa Meteorites; NWA 530; O-17/O-16; O-18/O-16; oxides; oxygen; presolar grains; Renazzo Meteorite; SEM data; silicates; silicon carbide; spectra; stable isotopes; stars; stony meteorites; supernovas; Tagish Lake Meteorite; Y 81025; Yamato Meteorites ER - TY - JOUR T1 - High abundances of presolar silicates in Antarctic micrometeorites; implications for their cometary origins AN - 51446095; 2007-046539 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Yada, T AU - Stadermann, F J AU - Floss, C AU - Zinner, E AU - Nakamura, T AU - Noguchi, T AU - Lea, A S AU - Anonymous Y1 - 2006 PY - 2006 DA - 2006 EP - unpaginated PB - Lunar and Planetary Science Conference, Houston, TX VL - 37 KW - silicates KW - stony meteorites KW - oxygen KW - ion probe data KW - asteroids KW - isotopes KW - mass spectra KW - silicon KW - interplanetary dust KW - stable isotopes KW - Tottuki Point KW - meteorites KW - presolar grains KW - carbon KW - oxides KW - spectra KW - chondrites KW - O-17/O-16 KW - isotope ratios KW - parent bodies KW - C-13/C-12 KW - O-18/O-16 KW - carbonaceous chondrites KW - East Antarctica KW - micrometeorites KW - comets KW - Antarctica KW - NanoSIMS KW - magnesiowustite KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51446095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=High+abundances+of+presolar+silicates+in+Antarctic+micrometeorites%3B+implications+for+their+cometary+origins&rft.au=Yada%2C+T%3BStadermann%2C+F+J%3BFloss%2C+C%3BZinner%2C+E%3BNakamura%2C+T%3BNoguchi%2C+T%3BLea%2C+A+S%3BAnonymous&rft.aulast=Yada&rft.aufirst=T&rft.date=2006-01-01&rft.volume=37&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1470.pdf LA - English DB - GeoRef N1 - Conference title - Thirty-seventh lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 5, 2007 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Antarctica; asteroids; C-13/C-12; carbon; carbonaceous chondrites; chondrites; comets; East Antarctica; interplanetary dust; ion probe data; isotope ratios; isotopes; magnesiowustite; mass spectra; meteorites; micrometeorites; NanoSIMS; O-17/O-16; O-18/O-16; oxides; oxygen; parent bodies; presolar grains; silicates; silicon; spectra; stable isotopes; stony meteorites; Tottuki Point ER - TY - JOUR T1 - Using Auger spectroscopy to characterize sub-micrometer presolar grains in situ; an overview AN - 51442905; 2007-046631 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Stadermann, F J AU - Floss, C AU - Lea, A S AU - Anonymous Y1 - 2006 PY - 2006 DA - 2006 EP - unpaginated PB - Lunar and Planetary Science Conference, Houston, TX VL - 37 KW - chemical analysis KW - in situ KW - parent bodies KW - cosmochemistry KW - interplanetary dust KW - micrometeorites KW - meteorites KW - presolar grains KW - identification KW - Auger spectroscopy KW - X-ray analysis KW - NanoSIMS KW - spectroscopy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51442905?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Using+Auger+spectroscopy+to+characterize+sub-micrometer+presolar+grains+in+situ%3B+an+overview&rft.au=Stadermann%2C+F+J%3BFloss%2C+C%3BLea%2C+A+S%3BAnonymous&rft.aulast=Stadermann&rft.aufirst=F&rft.date=2006-01-01&rft.volume=37&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1663.pdf LA - English DB - GeoRef N1 - Conference title - Thirty-seventh lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Auger spectroscopy; chemical analysis; cosmochemistry; identification; in situ; interplanetary dust; meteorites; micrometeorites; NanoSIMS; parent bodies; presolar grains; spectroscopy; X-ray analysis ER - TY - BOOK T1 - On the trail of the ice age floods; a geological field guide to the mid-Columbia Basin AN - 51437995; 2007-055348 JF - On the trail of the ice age floods; a geological field guide to the mid-Columbia Basin AU - Bjornstad, Bruce Y1 - 2006 PY - 2006 DA - 2006 SP - 307 PB - Keokee Company Publishing, Sandpoint, ID SN - 9781879628274 KW - United States KW - guidebook KW - landforms KW - field trips KW - erosion features KW - paleoclimatology KW - road log KW - Cenozoic KW - glossaries KW - glaciated terrains KW - erratics KW - Columbia River basin KW - mass movements KW - glacial environment KW - sediments KW - drainage basins KW - paleofloods KW - physiographic provinces KW - Washington KW - Quaternary KW - clastic sediments KW - channels KW - rivers KW - glacial features KW - landslides KW - fluvial features KW - Pleistocene KW - Channeled Scabland KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51437995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bjornstad%2C+Bruce&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2006-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9781879628274&rft.btitle=On+the+trail+of+the+ice+age+floods%3B+a+geological+field+guide+to+the+mid-Columbia+Basin&rft.title=On+the+trail+of+the+ice+age+floods%3B+a+geological+field+guide+to+the+mid-Columbia+Basin&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 117 N1 - PubXState - ID N1 - Document feature - illus. incl. geol. sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Ages of jotunite-mangerite plutonism in the Charlevoix region, Grenville Province, Quebec; implications for massif anorthosite development in the CRUML Belt AN - 51424086; 2007-058794 JF - Abstract Volume (Geological Association of Canada) AU - Dymek, R F AU - Gromet, L P AU - Icenhower, J P AU - Owens, B E AU - Tucker, R D AU - Anonymous Y1 - 2006 PY - 2006 DA - 2006 SP - 44 PB - Geological Association of Canada, Waterloo, ON VL - 31 SN - 1716-6098, 1716-6098 KW - silicates KW - upper Precambrian KW - U/Pb KW - Quebec KW - igneous rocks KW - monzonites KW - Rb/Sr KW - plutonic rocks KW - dates KW - inclusions KW - orthosilicates KW - jotunite KW - absolute age KW - Canadian Shield KW - xenoliths KW - zircon group KW - plutons KW - Charlevoix-Ouest County Quebec KW - North America KW - Grenville Province KW - Precambrian KW - zircon KW - Proterozoic KW - Chicoutimi County Quebec KW - anorthosite KW - nesosilicates KW - intrusions KW - Canada KW - Sm/Nd KW - CRUML Belt KW - Eastern Canada KW - mangerite KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51424086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.atitle=Ages+of+jotunite-mangerite+plutonism+in+the+Charlevoix+region%2C+Grenville+Province%2C+Quebec%3B+implications+for+massif+anorthosite+development+in+the+CRUML+Belt&rft.au=Dymek%2C+R+F%3BGromet%2C+L+P%3BIcenhower%2C+J+P%3BOwens%2C+B+E%3BTucker%2C+R+D%3BAnonymous&rft.aulast=Dymek&rft.aufirst=R&rft.date=2006-01-01&rft.volume=31&rft.issue=&rft.spage=44&rft.isbn=&rft.btitle=&rft.title=Abstract+Volume+%28Geological+Association+of+Canada%29&rft.issn=17166098&rft_id=info:doi/ L2 - http://www.gac.ca/activities/ LA - English DB - GeoRef N1 - Conference title - GAC-MAC annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - ON N1 - SuppNotes - All meeting abstracts available at http://www.gac.ca/ANNMEET/ABSTRACT_VOLUME31.pdf N1 - Last updated - 2012-06-07 N1 - CODEN - PAACD6 N1 - SubjectsTermNotLitGenreText - absolute age; anorthosite; Canada; Canadian Shield; Charlevoix-Ouest County Quebec; Chicoutimi County Quebec; CRUML Belt; dates; Eastern Canada; Grenville Province; igneous rocks; inclusions; intrusions; jotunite; mangerite; monzonites; nesosilicates; North America; orthosilicates; plutonic rocks; plutons; Precambrian; Proterozoic; Quebec; Rb/Sr; silicates; Sm/Nd; U/Pb; upper Precambrian; xenoliths; zircon; zircon group ER - TY - JOUR T1 - Physisorption of CO (sub 2) on non-ice materials of relevance to icy satellites AN - 51420256; 2007-061334 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Hibbitts, C A AU - Szanyi, J AU - Anonymous Y1 - 2006 PY - 2006 DA - 2006 EP - unpaginated PB - Lunar and Planetary Science Conference, Houston, TX VL - 37 KW - silicates KW - icy satellites KW - sorption KW - experimental studies KW - Galilean satellites KW - temperature KW - infrared spectra KW - clay minerals KW - carbon dioxide KW - sublimation KW - laboratory studies KW - ice KW - cations KW - sheet silicates KW - spectra KW - molecular dynamics KW - satellites KW - physisorption KW - montmorillonite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51420256?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Physisorption+of+CO+%28sub+2%29+on+non-ice+materials+of+relevance+to+icy+satellites&rft.au=Hibbitts%2C+C+A%3BSzanyi%2C+J%3BAnonymous&rft.aulast=Hibbitts&rft.aufirst=C&rft.date=2006-01-01&rft.volume=37&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1753.pdf LA - English DB - GeoRef N1 - Conference title - Thirty-seventh lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 22 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Dec. 20, 2006 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbon dioxide; cations; clay minerals; experimental studies; Galilean satellites; ice; icy satellites; infrared spectra; laboratory studies; molecular dynamics; montmorillonite; physisorption; satellites; sheet silicates; silicates; sorption; spectra; sublimation; temperature ER - TY - RPRT T1 - Hanford Site environmental surveillance data report for calendar year 2006 AN - 51289197; 2008-024165 JF - Hanford Site environmental surveillance data report for calendar year 2006 AU - Bisping, L E Y1 - 2006 PY - 2006 DA - 2006 SP - 211 VL - PNNL-16623, APP.1 KW - United States KW - water quality KW - Washington KW - pollutants KW - Columbia River KW - surface water KW - pollution KW - Hanford Site KW - bioavailability KW - environmental analysis KW - air pollution KW - transport KW - sediments KW - ecology KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51289197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bisping%2C+L+E&rft.aulast=Bisping&rft.aufirst=L&rft.date=2006-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+Site+environmental+surveillance+data+report+for+calendar+year+2006&rft.title=Hanford+Site+environmental+surveillance+data+report+for+calendar+year+2006&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Availability - National Technical Information Service, Springfield, VA, United States N1 - Document feature - 10 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Slow desorption of phenanthrene from silica particles; influence of pore size, pore water, and aging time AN - 50564700; 2008-125157 JF - 20th annual international conference on Soils, sediments and water AU - Huesemann, Michael H AU - Fortman, Timothy J AU - Riley, Robert G AU - Thompson, Christopher J AU - Wang, Zheming AU - Truex, Michael J AU - Peyton, Brent A2 - Calabrese, Edward J. A2 - Kostecki, Paul T. A2 - Dragun, James Y1 - 2006 PY - 2006 DA - 2006 PB - Springer, New York, NY SN - 0387283226 KW - concentration KW - sorption KW - desorption KW - two-phase models KW - grain size KW - pollution KW - aqueous solutions KW - preferential flow KW - equilibrium KW - porosity KW - carbon dioxide KW - hydration KW - phenanthrene KW - organic compounds KW - transport KW - silica KW - sediments KW - hydrocarbons KW - theoretical models KW - polycyclic aromatic hydrocarbons KW - kinetics KW - pore water KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50564700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Huesemann%2C+Michael+H%3BFortman%2C+Timothy+J%3BRiley%2C+Robert+G%3BThompson%2C+Christopher+J%3BWang%2C+Zheming%3BTruex%2C+Michael+J%3BPeyton%2C+Brent&rft.aulast=Huesemann&rft.aufirst=Michael&rft.date=2006-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0387283226&rft.btitle=Slow+desorption+of+phenanthrene+from+silica+particles%3B+influence+of+pore+size%2C+pore+water%2C+and+aging+time&rft.title=Slow+desorption+of+phenanthrene+from+silica+particles%3B+influence+of+pore+size%2C+pore+water%2C+and+aging+time&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 20th annual international conference on Soils, sediments and water N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 37 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Anaerobic redox cycling of iron by freshwater sediment microorganisms AN - 50105348; 2010-009062 JF - Environmental Microbiology AU - Weber, Karrie A AU - Urrutia, Matilde M AU - Churchill, Perry F AU - Kukkadapu, Ravi K AU - Roden, Eric E Y1 - 2006/01// PY - 2006 DA - January 2006 SP - 100 EP - 113 PB - Blackwell Science, Oxford VL - 8 IS - 1 SN - 1462-2912, 1462-2912 KW - communities KW - oxidation KW - ammonium ion KW - fresh water KW - iron KW - geochemical cycle KW - ferrous iron KW - ferric iron KW - biogenic processes KW - RNA KW - wetlands KW - metals KW - sediments KW - DNA KW - anaerobic environment KW - ecology KW - reduction KW - nitrate ion KW - nitrite ion KW - Eh KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50105348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Microbiology&rft.atitle=Anaerobic+redox+cycling+of+iron+by+freshwater+sediment+microorganisms&rft.au=Weber%2C+Karrie+A%3BUrrutia%2C+Matilde+M%3BChurchill%2C+Perry+F%3BKukkadapu%2C+Ravi+K%3BRoden%2C+Eric+E&rft.aulast=Weber&rft.aufirst=Karrie&rft.date=2006-01-01&rft.volume=8&rft.issue=1&rft.spage=100&rft.isbn=&rft.btitle=&rft.title=Environmental+Microbiology&rft.issn=14622912&rft_id=info:doi/10.1111%2Fj.1462.2920.2005.00873.x L2 - http://www.blackwell-synergy.com/loi/emi LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ammonium ion; anaerobic environment; biogenic processes; communities; DNA; ecology; Eh; ferric iron; ferrous iron; fresh water; geochemical cycle; iron; metals; microorganisms; nitrate ion; nitrite ion; oxidation; reduction; RNA; sediments; wetlands DO - http://dx.doi.org/10.1111/j.1462.2920.2005.00873.x ER - TY - JOUR T1 - Molecular analysis of deep subsurface Cretaceous rock indicates abundant Fe(III)- and S (super 0) -reducing bacteria in a sulfate-rich environment AN - 50104410; 2010-009064 JF - Environmental Microbiology AU - Kovacik, William P, Jr AU - Takai, Ken AU - Mormile, Melanie R AU - McKinley, James P AU - Brockman, Fred J AU - Fredrickson, James K AU - Holben, William E Y1 - 2006/01// PY - 2006 DA - January 2006 SP - 141 EP - 155 PB - Blackwell Science, Oxford VL - 8 IS - 1 SN - 1462-2912, 1462-2912 KW - United States KW - iron-reducing bacteria KW - communities KW - Cretaceous KW - sandstone KW - New Mexico KW - iron KW - ferric iron KW - sedimentary rocks KW - energy sources KW - carbon KW - ecology KW - sulfates KW - shale KW - phylogeny KW - molecular biology KW - Mesozoic KW - Cerro Negro KW - sulfate-reducing bacteria KW - RNA KW - metals KW - bacteria KW - sulfur KW - anaerobic environment KW - kerogen KW - clastic rocks KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50104410?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Microbiology&rft.atitle=Molecular+analysis+of+deep+subsurface+Cretaceous+rock+indicates+abundant+Fe%28III%29-+and+S+%28super+0%29+-reducing+bacteria+in+a+sulfate-rich+environment&rft.au=Kovacik%2C+William+P%2C+Jr%3BTakai%2C+Ken%3BMormile%2C+Melanie+R%3BMcKinley%2C+James+P%3BBrockman%2C+Fred+J%3BFredrickson%2C+James+K%3BHolben%2C+William+E&rft.aulast=Kovacik&rft.aufirst=William&rft.date=2006-01-01&rft.volume=8&rft.issue=1&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Environmental+Microbiology&rft.issn=14622912&rft_id=info:doi/10.1111%2Fj.1462.2920.2005.00876.x L2 - http://www.blackwell-synergy.com/loi/emi LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anaerobic environment; bacteria; carbon; Cerro Negro; clastic rocks; communities; Cretaceous; ecology; energy sources; ferric iron; iron; iron-reducing bacteria; kerogen; Mesozoic; metals; microorganisms; molecular biology; New Mexico; phylogeny; RNA; sandstone; sedimentary rocks; shale; sulfate-reducing bacteria; sulfates; sulfur; United States DO - http://dx.doi.org/10.1111/j.1462.2920.2005.00876.x ER - TY - JOUR T1 - Comparative Analysis of Soluble Phosphate Amendments for the Remediation of Heavy Metal Contaminants: Effect on Sediment Hydraulic Conductivity AN - 21047139; 7735728 AB - The contamination of surface and subsurface geologic media by heavy metals and radionuclides is a significant problem within the United States Department of Energy complex as a result of past nuclear operations. Water- soluble phosphate compounds provide a means to inject phosphorus into subsurface contaminant plumes, to precipitate metal ions from solution. However, phosphate phases can form within the sedimentary pore structure to block a fraction of the pore space and inhibit further remediation of the contaminant plume. A series of tests have been conducted to evaluate changes in sedimentary pore structure during the application of several proposed phosphate remediation amendments. A series of conventional, saturated column experiments have been conducted to evaluate the effect of utilizing in situ, soluble, phosphate amendments for subsurface metal remediation on sediment hydraulic conductivity. Experiments have been conducted under mildly alkaline and calcareous conditions representative of conditions commonly encountered at sites across the arid western United States, which have been used in weapons and fuel production and display significant subsurface contamination. Results indicate that the displacement of a single pore volume of either sodium monophosphate or phytic acid amendments causes approximately a 30% decrease in the hydraulic conductivity of the sediment. Long-chain polyphosphate amendments afford no measurable reduction in hydraulic conductivity. These results demonstrate (1) the efficacy of long-chain polyphosphate amendments for subsurface metal sequestration; and (2) the necessity of conducting dynamic experiments to evaluate the effects of subsurface remediation. JF - Environmental Chemistry AU - Wellman, Dawn M AU - Icenhower, Jonathan P AU - Owen, Antoinette T AD - Pacific Northwest National Laboratory, 902 Battelle Blvd, PO Box 999, MS K6-81, Richland, WA 99352, USA, dawn.wellman@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 219 EP - 224 PB - CSIRO Publishing, PO Box 1139 150 Oxford Street Collingwood Vic. 3066 Australia, [mailto:publishing@csiro.au], [URL:http://www.publish.csiro.au/] VL - 3 IS - 3 SN - 1448-2517, 1448-2517 KW - Pollution Abstracts; Water Resources Abstracts KW - geochemistry KW - hydraulic conductivity KW - sediments KW - water treatment KW - XMT [X KW - ray microtomography] KW - Metals KW - Hydraulics KW - Sediment pollution KW - Bioremediation KW - Permeability Coefficient KW - Sediments KW - Sodium KW - USA KW - Pores KW - Weapons KW - Phosphates KW - Pollutants KW - Structure KW - metal ions KW - Remediation KW - Nuclear fuels KW - Sediment Contamination KW - Nuclear energy KW - Phosphorus compounds KW - Contaminants KW - Plumes KW - heavy metals KW - P 2000:FRESHWATER POLLUTION KW - SW 3010:Identification of pollutants UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21047139?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Chemistry&rft.atitle=Comparative+Analysis+of+Soluble+Phosphate+Amendments+for+the+Remediation+of+Heavy+Metal+Contaminants%3A+Effect+on+Sediment+Hydraulic+Conductivity&rft.au=Wellman%2C+Dawn+M%3BIcenhower%2C+Jonathan+P%3BOwen%2C+Antoinette+T&rft.aulast=Wellman&rft.aufirst=Dawn&rft.date=2006-01-01&rft.volume=3&rft.issue=3&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Environmental+Chemistry&rft.issn=14482517&rft_id=info:doi/10.1071%2FEN05023 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-12-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Sediment pollution; Hydraulics; Bioremediation; Sodium; Weapons; Phosphates; metal ions; Nuclear fuels; Nuclear energy; Phosphorus compounds; Contaminants; Plumes; heavy metals; Metals; Pores; Pollutants; Structure; Remediation; Sediment Contamination; Permeability Coefficient; Sediments; USA DO - http://dx.doi.org/10.1071/EN05023 ER - TY - JOUR T1 - A proteomic view of Desulfovibrio vulgaris metabolism as determined by liquid chromatography coupled with tandem mass spectrometry AN - 20863475; 7035166 AB - Direct LC-MS/MS was used to examine the proteins extracted from exponential or stationary phase Desulfovibrio vulgaris cells that had been grown on a minimal medium containing either lactate or formate as the primary carbon source. Across all four growth conditions, 976 gene products were identified with high confidence, which is equal to approximately 28% of all predicted proteins in the D. vulgaris genome. Bioinformatic analysis showed that the proteins identified were distributed among almost all functional classes, with the energy metabolism category containing the greatest number of identified proteins. At least 154 ORFs originally annotated as hypothetical proteins were found to encode the expressed proteins, which provided verification for the authenticity of these hypothetical proteins. Proteomic analysis showed that proteins potentially involved in ATP biosynthesis using the proton gradient across membrane, such as ATPase, alcohol dehydrogenases, heterodisulfide reductases, and [NiFe] hydrogenase (HynAB-1) of the hydrogen cycling were highly expressed in all four growth conditions, suggesting they may be the primary pathways for ATP synthesis in D. vulgaris. Most of the enzymes involved in substrate-level phosphorylation were also detected in all tested conditions. However, no enzyme involved in CO cycling or formate cycling was detected, suggesting that they are not the primary ATP-biosynthesis pathways under the tested conditions. This study provides the first proteomic overview of the cellular metabolism of D. vulgaris.The complete list of proteins identified in this study and their abundances (peptide hits) is provided in Supplementary Table 1. JF - Proteomics AU - Zhang, Weiwen AU - Gritsenko, Marina A AU - Moore, Ronald J AU - Culley, David E AU - Nie, Lei AU - Petritis, Konstantinos AU - Strittmatter, Eric F AU - Camp II, David G AU - Smith, Richard D AU - Brockman, Fred J AD - Microbiology Group, Pacific Northwest National Laboratory, Richland, WA, USA, Weiwen.Zhang@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 4286 EP - 4299 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 6 IS - 15 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - Desulfovibrio vulgaris KW - Mass spectrometry KW - Metabolism KW - Genomes KW - Adenosinetriphosphatase KW - Energy metabolism KW - Growth conditions KW - Protons KW - Alcohol dehydrogenase KW - ATP KW - Enzymes KW - Hydrogen KW - Carbon sources KW - Mass spectroscopy KW - stationary phase KW - Phosphorylation KW - Liquid chromatography KW - Reviews KW - Lactic acid KW - heterodisulfide reductase KW - Bioinformatics KW - proteomics KW - Hydrogenase KW - W 30960:Bioinformatics & Computer Applications KW - J 02300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20863475?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=A+proteomic+view+of+Desulfovibrio+vulgaris+metabolism+as+determined+by+liquid+chromatography+coupled+with+tandem+mass+spectrometry&rft.au=Zhang%2C+Weiwen%3BGritsenko%2C+Marina+A%3BMoore%2C+Ronald+J%3BCulley%2C+David+E%3BNie%2C+Lei%3BPetritis%2C+Konstantinos%3BStrittmatter%2C+Eric+F%3BCamp+II%2C+David+G%3BSmith%2C+Richard+D%3BBrockman%2C+Fred+J&rft.aulast=Zhang&rft.aufirst=Weiwen&rft.date=2006-01-01&rft.volume=6&rft.issue=15&rft.spage=4286&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200500930 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Genomes; Adenosinetriphosphatase; Energy metabolism; Protons; Growth conditions; Alcohol dehydrogenase; Enzymes; ATP; Carbon sources; Hydrogen; Mass spectroscopy; stationary phase; Phosphorylation; Liquid chromatography; Reviews; Lactic acid; heterodisulfide reductase; proteomics; Bioinformatics; Hydrogenase; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1002/pmic.200500930 ER - TY - JOUR T1 - Localized in vivo isotropic-anisotropic correlation 1H NMR spectroscopy using ultraslow magic angle spinning AN - 20861059; 8367995 AB - In a previous work ([1]), the susceptibility broadening in the 1H NMR metabolite spectrum obtained in a live mouse was separated from the isotropic information, which significantly increased the spectral resolution. This was achieved using ultraslow magic angle spinning (MAS) of the animal combined with a modified phase-corrected magic angle turning (PHORMAT) pulse sequence. However, PHORMAT cannot be used for spatially selective spectroscopy. This article introduces a modified sequence called localized magic angle turning (LOCMAT) that makes this possible. Proton LOCMAT spectra were obtained from the liver and heart of a live mouse while the animal was spun at a speed of 4 Hz in a 2 Tesla field. It was found that even in this relatively low field, LOCMAT provided isotropic line widths that were a factor of 4-10 times smaller than those obtained in a stationary animal. Furthermore, the susceptibility broadening of the heart metabolites showed unusual features that are not observed in dead animals. The limitations of LOCMAT and possible ways to improve the technique are discussed. It is concluded that in vivo LOCMAT can significantly enhance the utility of NMR spectroscopy for biomedical research. JF - Magnetic Resonance in Medicine AU - Wind, Robert A AU - Hu, Jian Z AU - Majors, Paul D AD - Pacific Northwest National Laboratory, Richland, Washington, USA, robert.wind@pnl.gov Y1 - 2006/01// PY - 2006 DA - Jan 2006 SP - 41 EP - 49 PB - John Wiley & Sons, Baffins Lane Chichester W. Sussex PO19 1UD UK, [mailto:customer@wiley.co.uk], [URL:http://www.wiley.com/] VL - 55 IS - 1 SN - 0740-3194, 0740-3194 KW - Biotechnology and Bioengineering Abstracts KW - Heart KW - Protons KW - Magnetic resonance spectroscopy KW - Liver KW - Metabolites KW - N.M.R. KW - Spectroscopy KW - Spinning KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20861059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Magnetic+Resonance+in+Medicine&rft.atitle=Localized+in+vivo+isotropic-anisotropic+correlation+1H+NMR+spectroscopy+using+ultraslow+magic+angle+spinning&rft.au=Wind%2C+Robert+A%3BHu%2C+Jian+Z%3BMajors%2C+Paul+D&rft.aulast=Wind&rft.aufirst=Robert&rft.date=2006-01-01&rft.volume=55&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Magnetic+Resonance+in+Medicine&rft.issn=07403194&rft_id=info:doi/10.1002%2Fmrm.20740 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Spinning; N.M.R.; Metabolites; Heart; Magnetic resonance spectroscopy; Protons; Spectroscopy; Liver DO - http://dx.doi.org/10.1002/mrm.20740 ER - TY - BOOK T1 - The technology of two degrees AN - 20249131; 7073913 AB - This paper examines some of the energy technology implications of limiting the change in mean global surface temperature (GMST) to two degrees Celsius (2 degree C) relative to pre-industrial temperatures. Understanding the implications of this goal is clouded by uncertainty in key physical science parameters, particularly the climate sensitivity. If the climate sensitivity is 2.5 degree C then stabilization implies stabilization of CO sub(2) concentrations at less than 500 parts per million (ppm) with a peak in global CO sub(2) emissions occurring in the next 15 years and with a decline in emissions to approximately 3 petagrams of carbon per year by 2095. Under such circumstances the value of technology improvements beyond those assumed in the reference case is found to be exceptionally high, denominated in trillions of 1990 USD. The role of non-CO sub(2) greenhouse gases is important. Aerosols could produce significant feedbacks, though uncertainty is significant. If the climate sensitivity is 3.5 degree C or greater, it may be impossible to hold GMST change below 2 degree C. On the other hand if the climate sensitivity is 1.5 degree C, limiting GMST change to 2 degree C may be a trivial matter requiring little deviation from a reference emissions path until after the middle of the 21st century. JF - Avoiding Dangerous Climate Change AU - Edmonds, J AU - Smith, S J A2 - Schellnhuber, HJ A2 - Cramer, W A2 - Nakicenovic, N A2 - Wigley, T A2 - Yohe, G (eds) Y1 - 2006 PY - 2006 DA - 2006 SP - 8 EP - 392 PB - Cambridge University Press SN - 0521864712 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Sensitivity KW - Surface temperatures KW - Aerosols KW - Climatic changes KW - Climate change KW - Temperature KW - Atmospheric pollution by motor vehicles KW - Climate sensitivity KW - Emissions KW - Carbon dioxide KW - Greenhouse gases KW - Technology KW - P 0000:AIR POLLUTION KW - M2 551.583:Variations (551.583) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20249131?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Pollution+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Edmonds%2C+J%3BSmith%2C+S+J&rft.aulast=Edmonds&rft.aufirst=J&rft.date=2006-01-01&rft.volume=&rft.issue=&rft.spage=385&rft.isbn=0521864712&rft.btitle=The+technology+of+two+degrees&rft.title=The+technology+of+two+degrees&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 ER - TY - JOUR T1 - Diagnostic Oligonucleotide Microarray Fingerprinting of Bacillus Isolates AN - 20091909; 6663507 AB - A genome-independent microarray and new statistical techniques were used to genotype Bacillus strains and quantitatively compare DNA fingerprints with the known taxonomy of the genus. A synthetic DNA standard was used to understand process level variability and lead to recommended standard operating procedures for microbial forensics and clinical diagnostics. JF - Journal of Clinical Microbiology AU - Chandler, Darrell P AU - Alferov, Oleg AU - Chernov, Boris AU - Daly, Don S AU - Golova, Julia AU - Perov, Alexander AU - Protic, Miroslava AU - Robison, Richard AU - Schipma, Matthew AU - White, Amanda AU - Willse, Alan AD - Argonne National Laboratory, Argonne, Illinois 60439. Pacific Northwest National Laboratory, Richland, Washington 99352. Brigham Young University, Provo, Utah 84602 Y1 - 2006/01// PY - 2006 DA - Jan 2006 SP - 244 EP - 250 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 44 IS - 1 SN - 0095-1137, 0095-1137 KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - DNA fingerprinting KW - Fingerprinting KW - Statistical analysis KW - Forensic science KW - Taxonomy KW - Genotypes KW - Bacillus KW - Oligonucleotides KW - DNA microarrays KW - J 02704:Enumeration KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20091909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Clinical+Microbiology&rft.atitle=Diagnostic+Oligonucleotide+Microarray+Fingerprinting+of+Bacillus+Isolates&rft.au=Chandler%2C+Darrell+P%3BAlferov%2C+Oleg%3BChernov%2C+Boris%3BDaly%2C+Don+S%3BGolova%2C+Julia%3BPerov%2C+Alexander%3BProtic%2C+Miroslava%3BRobison%2C+Richard%3BSchipma%2C+Matthew%3BWhite%2C+Amanda%3BWillse%2C+Alan&rft.aulast=Chandler&rft.aufirst=Darrell&rft.date=2006-01-01&rft.volume=44&rft.issue=1&rft.spage=244&rft.isbn=&rft.btitle=&rft.title=Journal+of+Clinical+Microbiology&rft.issn=00951137&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-03-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - DNA fingerprinting; Fingerprinting; Forensic science; Statistical analysis; Taxonomy; Genotypes; DNA microarrays; Oligonucleotides; Bacillus ER - TY - JOUR T1 - Kinetics of Microbial Reduction of Solid Phase U(VI) AN - 20004216; 7987156 AB - Sodium boltwoodite (NaUO sub(2)SiO sub(3)OH super(.)1.5 H sub(2)O) was used to assess the kinetics of microbial reduction of solid-phase U(VI) by a dissimilatory metal-reducing bacterium (DMRB), Shewanella oneidensis strain MR-1. The bioreduction kinetics was studied with Na-boltwoodite in suspension or within alginate beads in a nongrowth medium with lactate as electron donor at pH 6.8 buffered with PIPES. Concentrations of U(VI) sub(tot) and cell number were varied to evaluate the coupling of U(VI) dissolution, diffusion, and microbial activity. Microscopic and spectroscopic analyses with transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and laser- induced fluorescence spectroscopy (LIFS) collectively indicated that solid- phase U(VI) was first dissolved and diffused out of grain interiors before it was reduced on bacterial surfaces and/or within the periplasm. The kinetics of solid-phase U(VI) bioreduction was well described by a coupled model of bicarbonate-promoted dissolution of Na-boltwoodite, intragrain uranyl diffusion, and Monod type bioreduction kinetics with respect to dissolved U(VI) concentration. The results demonstrated that microbial reduction of solid-phase U(VI) is controlled by coupled biological, chemical, and physical processes. JF - Environmental Science & Technology AU - Liu, Chongxuan AU - Jeon, Byong-Hun AU - Zachara, John M AU - Wang, Zheming AU - Dohnalkova, Alice AU - Fredrickson, James K AD - Pacific Northwest National Laboratory, Richland, Washington 99352 Y1 - 2006 PY - 2006 DA - 2006 SP - 6290 EP - 6296 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 40 IS - 20 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Transmission electron microscopy KW - Spectroscopy KW - Alginic acid KW - Uranium KW - Shewanella oneidensis KW - Diffusion KW - pH effects KW - pH KW - Fluorescence KW - Cell number KW - Microbial activity KW - Sodium KW - fluorescence spectroscopy KW - Energy KW - Kinetics KW - Microscopy KW - Grain KW - Lactic acid KW - Dissolution KW - periplasm KW - A 01380:Plant Protection, Fungicides & Seed Treatments KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20004216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Kinetics+of+Microbial+Reduction+of+Solid+Phase+U%28VI%29&rft.au=Liu%2C+Chongxuan%3BJeon%2C+Byong-Hun%3BZachara%2C+John+M%3BWang%2C+Zheming%3BDohnalkova%2C+Alice%3BFredrickson%2C+James+K&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2006-01-01&rft.volume=40&rft.issue=20&rft.spage=6290&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes0608601 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-03-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Cell number; Transmission electron microscopy; Spectroscopy; Sodium; fluorescence spectroscopy; Alginic acid; Kinetics; Energy; Lactic acid; Grain; Dissolution; Diffusion; pH effects; periplasm; Fluorescence; Uranium; Microscopy; Microbial activity; pH; Shewanella oneidensis DO - http://dx.doi.org/10.1021/es0608601 ER - TY - BOOK T1 - Chapter 41: The Technology of Two Degrees AN - 19649452; 8570980 AB - This paper examines some of the energy technology implications of limiting the change in mean global surface temperature (GMST) to two degrees Celsius (2 degree C) relative to pre-industrial temperatures. Understanding the implications of this goal is clouded by uncertainty in key physical science parameters, particularly the climate sensitivity. If the climate sensitivity is 2.5 degree C then stabilization implies stabilization of CO sub(2) concentrations at less than 500 parts per million (ppm) with a peak in global CO sub(2) emissions occurring in the next 15 years and with a decline in emissions to approximately 3 petagrams of carbon per year by 2095. Under such circumstances the value of technology improvements beyond those assumed in the reference case is found to be exceptionally high, denominated in trillions of 1990 USD. The role of non-CO sub(2) greenhouse gases is important. Aerosols could produce significant feedbacks, though uncertainty is significant. If the climate sensitivity is 3.5 degree C or greater, it may be impossible to hold GMST change below 2 degree C. On the other hand if the climate sensitivity is 1.5 degree C, limiting GMST change to 2 degree C may be a trivial matter requiring little deviation from a reference emissions path until after the middle of the 21st century. JF - AVOIDING DANGEROUS CLIMATE CHANGE. AU - Edmonds, J AU - Smith, S J A2 - Schellnhuber, Hans Joachim A2 - Cramer, Wolfgang A2 - Nakicenovic, Nebojsa A2 - Wigley, Tom A2 - Yohe, Gary (eds) Y1 - 2006 PY - 2006 DA - 2006 SP - 8 EP - 392 PB - Cambridge University Press, 32 Avenue of the Americas New York NY 10013-2473 USA KW - Pollution Abstracts; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Surface temperatures KW - Climate change KW - Climatic changes KW - Climate sensitivity KW - Emissions KW - Carbon dioxide emissions KW - Aerosols KW - Temperature KW - Clouds KW - Greenhouse gases KW - Carbon dioxide KW - Technology KW - P 0000:AIR POLLUTION KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19649452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Sustainability+Science+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Edmonds%2C+J%3BSmith%2C+S+J&rft.aulast=Edmonds&rft.aufirst=J&rft.date=2006-01-01&rft.volume=&rft.issue=&rft.spage=385&rft.isbn=&rft.btitle=Chapter+41%3A+The+Technology+of+Two+Degrees&rft.title=Chapter+41%3A+The+Technology+of+Two+Degrees&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-11-01 N1 - Last updated - 2011-12-14 ER - TY - JOUR T1 - Estimating probabilities of peptide database identifications to LC-FTICR-MS observations AN - 19492277; 7181633 AB - Background: The field of proteomics involves the characterization of the peptides and proteins expressed in a cell under specific conditions. Proteomics has made rapid advances in recent years following the sequencing of the genomes of an increasing number of organisms. A prominent technology for high throughput proteomics analysis is the use of liquid chromatography coupled to Fourier transform ion cyclotron resonance mass spectrometry (LC-FTICR-MS). Meaningful biological conclusions can best be made when the peptide identities returned by this technique are accompanied by measures of accuracy and confidence. Methods After a tryptically digested protein mixture is analyzed by LC-FTICR-MS, the observed masses and normalized elution times of the detected features are statistically matched to the theoretical masses and elution times of known peptides listed in a large database. The probability of matching is estimated for each peptide in the reference database using statistical classification methods assuming bivariate Gaussian probability distributions on the uncertainties in the masses and the normalized elution times. Results A database of 69,220 features from 32 LC-FTICR-MS analyses of a tryptically digested bovine serum albumin (BSA) sample was matched to a database populated with 97% false positive peptides. The percentage of high confidence identifications was found to be consistent with other database search procedures. BSA database peptides were identified with high confidence on average in 14.1 of the 32 analyses. False positives were identified on average in just 2.7 analyses. Conclusion Using a priori probabilities that contrast peptides from expected and unexpected proteins was shown to perform better in identifying target peptides than using equally likely a priori probabilities. This is because a large percentage of the target peptides were similar to unexpected peptides which were included to be false positives. The use of triplicate analyses with a "2 out of 3" reporting rule was shown to have excellent rejection of false positives. JF - Proteome Science AU - Anderson, Kevin K AU - Monroe, Matthew E AU - Daly, Don S AD - Computer Science and Mathematics Division, Pacific Northwest National Laboratory, Battelle Boulevard, Richland WA, USA, KevinKAnderson Y1 - 2006 PY - 2006 DA - 2006 PB - BioMed Central Ltd., Middlesex House 34-42 Cleveland Street London W1T 4LB UK, [mailto:info@biomedcentral.com], [URL:http://www.biomedcentral.com] VL - 4 SN - 1477-5956, 1477-5956 KW - Biotechnology and Bioengineering Abstracts KW - Article No. 1 KW - Genomes KW - Databases KW - Statistics KW - Bovine serum albumin KW - Liquid chromatography KW - proteomics KW - Mass spectroscopy KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19492277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteome+Science&rft.atitle=Estimating+probabilities+of+peptide+database+identifications+to+LC-FTICR-MS+observations&rft.au=Anderson%2C+Kevin+K%3BMonroe%2C+Matthew+E%3BDaly%2C+Don+S&rft.aulast=Anderson&rft.aufirst=Kevin&rft.date=2006-01-01&rft.volume=4&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proteome+Science&rft.issn=14775956&rft_id=info:doi/10.1186%2F1477-5956-4-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Databases; proteomics; Genomes; Bovine serum albumin; Mass spectroscopy; Statistics; Liquid chromatography DO - http://dx.doi.org/10.1186/1477-5956-4-1 ER - TY - JOUR T1 - Behavior of a Viscous LNAPL Under Variable Water Table Conditions AN - 19473000; 7173283 AB - An intermediate-scale experiment in a 1.02-m-long, 0.75-m-high, and 0.05-m-wide flow cell was conducted to investigate the behavior of a viscous LNAPL under variable water table conditions. Two viscous LNAPL volumes (0.4 L) were released, one week apart, from a small source zone on top of the flow cell into a partly saturated, homogenously packed porous medium. Following a redistribution period of 30 days after the second release, the water table was increased 0.5 m in 50 minutes. After the water table rise, viscous LNAPL behavior was monitored for an additional 45 days. Fluid saturation scans were obtained periodically with a fully automated dual-energy gamma radiation system. Results show that both spills follow similar paths downwards. Within two hours after the first LNAPL arrival, the capillary fringe was reduced across the cell by approximately 0.04 m (22%). This reduction is directly related to the decrease in the air-water surface tension from 0.072 to 0.057 N/m. LNAPL drainage from the unsaturated zone was relatively slow and a considerable residual LNAPL saturation was observed after 30 days of drainage. Most of the mobile LNAPL moved into the capillary fringe during this period. After a rapid 0.5 m water table rise, the LNAPL moved up in a delayed fashion. The LNAPL used the same path upwards as it used coming down during the infiltration phase. After 45 days, the LNAPL had moved up only approximately 0.2 m. Since the LNAPL had only moved up a limited amount, nonwetting fluid entrapment was limited. The experiment was simulated using the STOMP multifluid flow simulator, which includes entrapped and residual LNAPL saturation formation. A comparison indicates that the simulator is able to predict the observed phenomena well, including residual saturation formation in the vadose zone, and limited upward LNAPL movement after the water table rise. The results of this experiment show that viscous mobile LNAPL, subject to variable water table conditions, does not necessarily float on the water table and may not appear in an observation well. JF - Soil and Sediment Contamination AU - Oostrom, M AU - Hofstee, C AU - Wietsma, T W AD - Hydrology Group, Pacific Northwest National Laboratory, P.O. Box 999, MS K9-33, Richland, WA 99352, USA, mart.oostrom@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 543 EP - 564 PB - CRC Press LLC, 2000 Corporate Blvd., NW Boca Raton FL 33431 USA, [mailto:journals@crcpress.com], [URL:http://www.crcpress.com] VL - 15 IS - 6 SN - 1532-0383, 1532-0383 KW - Water Resources Abstracts; Pollution Abstracts KW - Sediment pollution KW - Drainage KW - Groundwater Pollution KW - Gamma radiation KW - Water Table KW - Saturation KW - Water Table Rise KW - Observation Wells KW - water table KW - Behavior KW - Nonaqueous Phase Liquids KW - Nonaqueous phase liquids KW - Infiltration KW - Sediment Contamination KW - Water wells KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19473000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+and+Sediment+Contamination&rft.atitle=Behavior+of+a+Viscous+LNAPL+Under+Variable+Water+Table+Conditions&rft.au=Oostrom%2C+M%3BHofstee%2C+C%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2006-01-01&rft.volume=15&rft.issue=6&rft.spage=543&rft.isbn=&rft.btitle=&rft.title=Soil+and+Sediment+Contamination&rft.issn=15320383&rft_id=info:doi/10.1080%2F15320380600958976 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Sediment pollution; water table; Drainage; Infiltration; Nonaqueous phase liquids; Water wells; Gamma radiation; Observation Wells; Behavior; Nonaqueous Phase Liquids; Sediment Contamination; Groundwater Pollution; Saturation; Water Table; Water Table Rise DO - http://dx.doi.org/10.1080/15320380600958976 ER - TY - JOUR T1 - Predicted highly expressed genes in Nocardia farcinica and the implication for its primary metabolism and nocardial virulence AN - 19324948; 7065787 AB - Nocardia farcinica is a Gram positive, filamentous bacterium, and is considered an opportunistic pathogen. In this study, the highly expressed genes in N. farcinica were predicted using the codon adaptation index (CAI) as a numerical estimator of gene expressivity. Using ribosomal protein (RP) genes as references, the top similar to similar to 10% of the genes were predicted to be the predicted highly expressed (PHX) genes in N. farcinica using a CAI cutoff of greater than 0.73. Consistent with earlier analysis of Streptomyces genomes, most of the PHX genes in N. farcinica were involved in various 'house-keeping' functions important for cell growth. However, 15 genes putatively involved in nocardial virulence were predicted as PHX genes in N. farcinica, which included genes encoding four Mce proteins, cyclopropane fatty acid synthase which is involved in the modification of cell wall which may be important for nocardia virulence, polyketide synthase PKS13 for mycolic acid synthesis and a non-ribosomal peptide synthetase involved in biosynthesis of a mycobactin-related siderophore. In addition, multiple genes involved in defense against reactive oxygen species (ROS) produced by the phagocyte were predicted with high expressivity, which included alkylhydroperoxide reductase (ahpC), catalase (katG), superoxide dismutase (sodF), thioredoxin, thioredoxin reductase, glutathione peroxidase, and peptide methionine sulfoxide reductase, suggesting that combating against ROS is essential for survival of N. farcinica in host cells. The study also showed that the distribution of PHX genes in the N. farcinica circular chromosome was uneven, with more PHX genes located in the regions close to replication initiation site. The results provided the first estimates of global gene expression patterns in N. farcinica, which will be useful in guiding experimental design for further investigations. JF - Antonie Van Leeuwenhoek AU - Wu, Gang AU - Nie, Lei AU - Zhang, Weiwen AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, 999, Richland, WA, 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2006/01// PY - 2006 DA - Jan 2006 SP - 135 EP - 146 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 89 IS - 1 SN - 0003-6072, 0003-6072 KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Genomes KW - Cell survival KW - Methionine KW - Mycolic acids KW - Virulence KW - Chromosomes KW - reductase KW - Reactive oxygen species KW - Mce protein KW - Phagocytes KW - Glutathione peroxidase KW - Superoxide dismutase KW - Ribosomal proteins KW - Thioredoxin KW - Polyketide synthase KW - Adaptations KW - Thioredoxin-disulfide reductase KW - Nocardia farcinica KW - Pathogens KW - Catalase KW - Fatty-acid synthase KW - Siderophores KW - Opportunist infection KW - Replication initiation KW - Streptomyces KW - thioredoxin reductase KW - Codons KW - Metabolism KW - Cell walls KW - J 02310:Genetics & Taxonomy KW - G 07770:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19324948?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Antonie+Van+Leeuwenhoek&rft.atitle=Predicted+highly+expressed+genes+in+Nocardia+farcinica+and+the+implication+for+its+primary+metabolism+and+nocardial+virulence&rft.au=Wu%2C+Gang%3BNie%2C+Lei%3BZhang%2C+Weiwen&rft.aulast=Wu&rft.aufirst=Gang&rft.date=2006-01-01&rft.volume=89&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Antonie+Van+Leeuwenhoek&rft.issn=00036072&rft_id=info:doi/10.1007%2Fs10482-005-9016-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-10-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Cell survival; Genomes; Methionine; Mycolic acids; Virulence; Chromosomes; reductase; Reactive oxygen species; Ribosomal proteins; Superoxide dismutase; Glutathione peroxidase; Phagocytes; Mce protein; Thioredoxin; Polyketide synthase; Adaptations; Thioredoxin-disulfide reductase; Pathogens; Catalase; Opportunist infection; Siderophores; Fatty-acid synthase; Replication initiation; Codons; thioredoxin reductase; Metabolism; Cell walls; Streptomyces; Nocardia farcinica DO - http://dx.doi.org/10.1007/s10482-005-9016-z ER - TY - JOUR T1 - Trace-gas mixing in isolated urban boundary layers: Results from the 2001 Phoenix sunrise experiment AN - 17233882; 6929705 AB - Measurements made from surface sites, from the 50 and 140 m levels (the 16th and 39th floors) of a skyscraper, and from an instrumented aircraft are used to characterize early morning profiles of CO, NO sub(y) and O sub(3) within the mid-morning summertime convective atmospheric boundary layer (CABL) over Phoenix, Arizona. Although mixing was anticipated to produce uniform values of these species throughout the CABL, this was found not to be the case. Background air advected into the upper levels of the boundary layer and entrained air from above appear to be the most likely cause for the lack of well-mixed trace gases. The results show that surface measurements may provide only limited information on concentrations of trace-gas species higher in the boundary layer. JF - Atmospheric Environment AU - Berkowitz, Carl M AU - Doran, JChristopher AU - Shaw, William J AU - Springston, Stephen R AU - Spicer, Chester W AD - Pacific Northwest National Laboratory, Atmospheric Sciences and Global Change Division, Richland, WA, USA, carl.berkowitz@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 50 EP - 57 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 40 IS - 1 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Air pollution KW - CO KW - Ozone KW - No sub(y) KW - Mixing KW - Convective atmospheric boundary layer KW - Ozone measurements KW - Atmospheric pollution measurements KW - Nitrogen oxides KW - Carbon monoxide KW - Gases KW - Boundary layers KW - Chemical speciation KW - Atmospheric chemistry KW - Emission measurements KW - USA, Arizona KW - Urban atmospheric pollution KW - Atmospheric boundary layer KW - USA, Arizona, Phoenix KW - Urban areas KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - M2 551.501:Methods of Observation/Computations (551.501) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17233882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Trace-gas+mixing+in+isolated+urban+boundary+layers%3A+Results+from+the+2001+Phoenix+sunrise+experiment&rft.au=Berkowitz%2C+Carl+M%3BDoran%2C+JChristopher%3BShaw%2C+William+J%3BSpringston%2C+Stephen+R%3BSpicer%2C+Chester+W&rft.aulast=Berkowitz&rft.aufirst=Carl&rft.date=2006-01-01&rft.volume=40&rft.issue=1&rft.spage=50&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2005.08.039 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-10-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Ozone measurements; Atmospheric pollution measurements; Urban atmospheric pollution; Atmospheric boundary layer; Ozone; Carbon monoxide; Gases; Chemical speciation; Boundary layers; Atmospheric chemistry; Emission measurements; Nitrogen oxides; Urban areas; USA, Arizona; USA, Arizona, Phoenix DO - http://dx.doi.org/10.1016/j.atmosenv.2005.08.039 ER - TY - JOUR T1 - Monitoring iodine-129 in air and milk samples collected near the Hanford Site: an investigation of historical iodine monitoring data AN - 17223647; 6933016 AB - While other research has reported on the concentrations of super(129)I in the environment surrounding active nuclear fuel reprocessing facilities, there is a shortage of information regarding how the concentrations change once facilities close. At the Hanford Site, the Plutonium-Uranium Extraction (PUREX) chemical separation plant was operating between 1983 and 1990, during which time super(129)I concentrations in air and milk were measured. After the cessation of chemical processing, plant emissions decreased 2.5 orders of magnitude over an 8-year period. An evaluation of super(129)I and super(127)I concentration data in air and milk spanning the PUREX operation and post-closure period was conducted to compare the changes in environmental levels. Measured concentrations over the monitoring period were below the levels that could result in a potential annual human dose greater than 1 mSv. There was a measurable difference in the measured air concentrations of super(129)I at different distances from the source, indicating a distinct Hanford fingerprint. Correlations between stack emissions of super(129)I and concentrations in air and milk indicate that atmospheric emissions were the major source of super(129)I measured in environmental samples. The measured concentrations during PUREX operations were similar to observations made around a fuel reprocessing plant in Germany. After the PUREX Plant stopped operating, super(129)I concentration measurements made upwind of Hanford were similar to the results from Seville, Spain. JF - Journal of Environmental Radioactivity AU - Fritz, Brad G AU - Patton, Gregory W AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K6-75, Richland, WA 99352, USA, bradley.fritz@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 64 EP - 77 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 86 IS - 1 SN - 0265-931X, 0265-931X KW - Pollution Abstracts; Toxicology Abstracts; Health & Safety Science Abstracts KW - Iodine-129 KW - Environmental sampling KW - Hanford KW - Milk KW - Air KW - Radioactive emissions KW - Historical account KW - Fuels KW - Food contamination KW - Stack emissions KW - USA, Washington, Hanford Site KW - Spain, Seville KW - Nuclear fuels KW - Air sampling KW - Radioisotopes KW - Iodine KW - Plant extracts KW - Radioactivity KW - Germany KW - X 24120:Food, additives & contaminants KW - X 24240:Miscellaneous KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17223647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Radioactivity&rft.atitle=Monitoring+iodine-129+in+air+and+milk+samples+collected+near+the+Hanford+Site%3A+an+investigation+of+historical+iodine+monitoring+data&rft.au=Fritz%2C+Brad+G%3BPatton%2C+Gregory+W&rft.aulast=Fritz&rft.aufirst=Brad&rft.date=2006-01-01&rft.volume=86&rft.issue=1&rft.spage=64&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Radioactivity&rft.issn=0265931X&rft_id=info:doi/10.1016%2Fj.jenvrad.2005.07.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Milk; Fuels; Iodine; Radioactivity; Plant extracts; Historical account; Nuclear fuels; Radioisotopes; Air sampling; Stack emissions; Food contamination; Spain, Seville; Germany; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1016/j.jenvrad.2005.07.006 ER - TY - JOUR T1 - Crystal structure of VC0702 at 2.0 Aa: Conserved hypothetical protein from Vibrio cholerae AN - 17171593; 6838735 AB - VC0702, a conserved hypothetical protein of unknown function from Vibrio cholerae, resides in a three-gene operon containing the MbaA gene that encodes for a GGDEF and EAL domain-containing protein which is involved in regulating formation of the extracellular matrix of biofilms in Vibrio cholerae. The VC0702 crystal structure has been determined at 2.0 Aa and refined to R sub(work) = 22.8% and R sub(free) = 26.3%. VC0702 crystallized in an orthorhombic crystal lattice in the C222 sub(1) space group with dimensions of a = 66.61 Aa, b = 88.118 Aa, and c = 118.35 Aa with a homodimer in the asymmetric unit. VC0702, which forms a mixed [alpha] + [beta] three-layered [alpha][beta][alpha] sandwich, belongs to the Pfam DUF84 and COG1986 families of proteins. Sequence conservation within the DUF84 and COG1986 families was used to identify a conserved patch of surface residues that define a cleft and potential substrate-binding site in VC0702. The three-dimensional structure of VC0702 is similar to that of Mj0226 from Methanococcus janeschii, which has been identified as a novel NTPase that binds NTP in a deep cleft similarly located to the conserved patch of surface residues that define an analogous cleft in VC0702. Collectively, the data suggest that VC0702 may have a biochemical function that involves NTP binding and phosphatase activity of some kind, and is likely involved in regulation of the signaling pathway that controls biofilm formation and maintenance in Vibrio cholerae. Proteins 2006. JF - Proteins: Structure, Function & Bioinformatics AU - Ni, Shuisong AU - Forouhar, Farhad AU - Bussiere, Dirksen E AU - Robinson, Howard AU - Kennedy, Michael A AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington, ma_kennedy@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 733 EP - 741 PB - John Wiley & Sons, Inc., 111 River Street Hoboken NJ 07030 USA, [mailto:custserv@wiley.com], [URL:http://www.wiley.com/] VL - 63 IS - 4 SN - 0887-3585, 0887-3585 KW - Microbiology Abstracts B: Bacteriology KW - Vibrio cholerae KW - VC0702 KW - biofilm regulation KW - dNTPase KW - pyrophosphatase KW - VC0703 KW - MbaA KW - dUTPase KW - Protein structure KW - Methanococcus KW - Extracellular matrix KW - Crystal structure KW - Conserved sequence KW - Biofilms KW - Bioinformatics KW - Operons KW - Signal transduction KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17171593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteins%3A+Structure%2C+Function+%26+Bioinformatics&rft.atitle=Crystal+structure+of+VC0702+at+2.0+Aa%3A+Conserved+hypothetical+protein+from+Vibrio+cholerae&rft.au=Ni%2C+Shuisong%3BForouhar%2C+Farhad%3BBussiere%2C+Dirksen+E%3BRobinson%2C+Howard%3BKennedy%2C+Michael+A&rft.aulast=Ni&rft.aufirst=Shuisong&rft.date=2006-01-01&rft.volume=63&rft.issue=4&rft.spage=733&rft.isbn=&rft.btitle=&rft.title=Proteins%3A+Structure%2C+Function+%26+Bioinformatics&rft.issn=08873585&rft_id=info:doi/10.1002%2Fprot.20919 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-10-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Protein structure; Extracellular matrix; Crystal structure; Conserved sequence; Bioinformatics; Biofilms; Operons; Signal transduction; Vibrio cholerae; Methanococcus DO - http://dx.doi.org/10.1002/prot.20919 ER - TY - JOUR T1 - The use of positive matrix factorization with conditional probability functions in air quality studies: An application to hydrocarbon emissions in Houston, Texas AN - 17167437; 6801331 AB - In this paper, we describe two advanced statistical techniques suited to address the following questions: which source categories of emissions affect given areas and where do these source categories come from? A source category is defined as a combination of volatile organic compounds (VOCs) associated with a specific industrial process. A discussion of the positive matrix factorization (PMF) multivariate receptor model is presented, and this PMF technique applied to hourly average concentrations of VOCs measured at five Photochemical Assessment Monitoring Stations (PAMS) located near the emission-rich Houston Ship Channel region in Texas. The observations were made between June and October 2003, and the PMF analysis was limited to nighttime measurements (21:00- 06:00 CDT) to remove the complexity of photochemical processing and associated changes in the concentrations of primary and secondary VOCs. Six to eight VOCs source categories were identified for the five Ship Channel sites. Specific geographic areas associated with each source category were identified through the use of conditional probability functions that identify source regions when superimposed on maps of VOC emissions. JF - Atmospheric Environment AU - Xie, Yulong AU - Berkowitz, Carl M AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, carl.berkowitz@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 3070 EP - 3091 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 40 IS - 17 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Receptor modeling KW - VOC KW - Positive matrix factorization (PMF) KW - Conditional probability function (CPF) KW - Houston KW - Air quality KW - Pollution monitoring KW - Atmospheric pollution models KW - Hydrocarbons KW - Statistical analysis KW - Photochemicals KW - USA, Texas KW - Hydrocarbon emissions KW - USA, Texas, Houston KW - Volatile organic compounds KW - Urban areas KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17167437?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=The+use+of+positive+matrix+factorization+with+conditional+probability+functions+in+air+quality+studies%3A+An+application+to+hydrocarbon+emissions+in+Houston%2C+Texas&rft.au=Xie%2C+Yulong%3BBerkowitz%2C+Carl+M&rft.aulast=Xie&rft.aufirst=Yulong&rft.date=2006-01-01&rft.volume=40&rft.issue=17&rft.spage=3070&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2005.12.065 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-07-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Atmospheric pollution models; Statistical analysis; Air quality; Hydrocarbon emissions; Pollution monitoring; Photochemicals; Hydrocarbons; Volatile organic compounds; Urban areas; USA, Texas; USA, Texas, Houston DO - http://dx.doi.org/10.1016/j.atmosenv.2005.12.065 ER - TY - JOUR T1 - Climate change impacts on agriculture and soil carbon sequestration potential in the Huang-Hai Plain of China AN - 17125534; 6755500 AB - For thousands of years, the Huang-Hai Plain in northeast China has been one of the most productive agricultural regions of the country. The future of this region will be determined in large part by how global climatic changes impact regional conditions and by actions taken to mitigate or adapt to climate change impacts. One potential mitigation strategy is to promote management practices that have the potential to sequester carbon in the soils. The IPCC estimates that 40 Pg of C could be sequestered in cropland soils worldwide over the next several decades; however, changes in global climate may impact this potential. Here, we assess the potential for soil C sequestration with conversion of a conventional till (CT) continuous wheat system to a wheat-corn double cropping system and by implementing no till (NT) management for both continuous wheat and wheat-corn systems. To assess the influence of these management practices under a changing climate, we use two climate change scenarios (A2 and B2) at two time periods in the EPIC agro-ecosystem simulation model. The applied climate change scenarios are from the HadCM3 global climate model for the periods 2015-2045 and 2070-2099 which projects consistent increases in temperature and precipitation of greater than 5 degree C and up to 300 mm by 2099. An increase in the variability of temperature is also projected and is, accordingly, applied in the simulations. The EPIC model indicates that winter wheat yields would increase on average by 0.2 Mg ha super(-1) in the earlier period and by 0.8 Mg ha super(-1) in the later period due to warmer nighttime temperatures and higher precipitation. Simulated yields were not significantly affected by imposed changes in crop management. Simulated soil organic C content was higher under both NT management and double cropping than under CT continuous wheat. The simulated changes in management were a more important factor in SOC changes than the scenario of climate change. Soil C sequestration rates for continuous wheat systems were increased by an average of 0.4 Mg ha super(-1) year super(-1) by NT in the earlier period and by 0.2 Mg ha super(-1) year super(-1) in the later period. With wheat-corn double cropping, NT increased sequestration rates by 0.8 and 0.4 Mg ha super(-1) year super(-1) for the earlier and later periods, respectively. The total C offset due to a shift from CT to NT under continuous wheat over 16 million hectares in the Huang-Hai Plain is projected to reach 240 Tg C in the earlier period and 180 Tg C in the later period. Corresponding C offsets for wheat-corn cropping are 675-495 Tg C. JF - Agriculture, Ecosystems & Environment AU - Thomson, Allison M AU - Izaurralde, RCesar AU - Rosenberg, Norman J AU - He, Xiaoxia AD - Joint Global Change Research Institute, Pacific Northwest National Laboratory and the University of Maryland, College Park, 8400 Baltimore Ave. Suite 201, College Park, MD 20740, USA, Allison.thomson@pnl.gov Y1 - 2006 PY - 2006 DA - 2006 SP - 195 EP - 209 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 114 IS - 2-4 SN - 0167-8809, 0167-8809 KW - Sustainability Science Abstracts; Pollution Abstracts; Ecology Abstracts KW - Soil organic carbon KW - China KW - Climate change mitigation KW - Agriculture KW - Simulation modeling KW - Temperature effects KW - Ecosystems KW - Rainfall KW - Climatic changes KW - Temperature KW - Simulation KW - Crops KW - Triticum aestivum KW - Carbon sequestration KW - China, People's Rep. KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - D 04800:Pollution studies - general UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17125534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agriculture%2C+Ecosystems+%26+Environment&rft.atitle=Climate+change+impacts+on+agriculture+and+soil+carbon+sequestration+potential+in+the+Huang-Hai+Plain+of+China&rft.au=Thomson%2C+Allison+M%3BIzaurralde%2C+RCesar%3BRosenberg%2C+Norman+J%3BHe%2C+Xiaoxia&rft.aulast=Thomson&rft.aufirst=Allison&rft.date=2006-01-01&rft.volume=114&rft.issue=2-4&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Agriculture%2C+Ecosystems+%26+Environment&rft.issn=01678809&rft_id=info:doi/10.1016%2Fj.agee.2005.11.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Temperature effects; Agriculture; Ecosystems; Rainfall; Climatic changes; Simulation; Crops; Carbon sequestration; Temperature; Triticum aestivum; China, People's Rep. DO - http://dx.doi.org/10.1016/j.agee.2005.11.001 ER - TY - JOUR T1 - More frequent cloud-free sky and less surface solar radiation in China from 1955 to 2000 AN - 17064209; 6699118 AB - Newly available data from extended weather stations and time period reveal that much of China has experienced significant decreases in cloud cover over the last half of the Twentieth century. This conclusion is supported by the analysis of the more reliably observed frequency of cloud-free sky and overcast sky. The total cloud cover and low cloud cover have decreased 0.88% and 0.33% per decade, respectively, and cloud-free days have increased 0.60% and overcast days decreased 0.78% per decade in China from 1954-2001. Meanwhile, both solar radiation and pan evaporation have decreased in China, with solar radiation decreasing 3.1 W/m super(2) and pan evaporation decreasing 39 mm per decade. Combining these results with findings of previous studies, we speculated that increased air pollution may have produced a fog-like haze that reflected/absorbed radiation from the sun and resulted in less solar radiation reaching the surface, despite concurrent increasing trends in cloud-free sky over China. JF - Geophysical Research Letters AU - Qian, Yun AU - Kaiser, Dale P AU - Leung, LRuby AU - Xu, Ming AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2006/01// PY - 2006 DA - Jan 2006 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 33 IS - 1 SN - 0094-8276, 0094-8276 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Citation No. L01812 KW - 0321 Atmospheric Composition and Structure: Cloud/radiation interaction 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801, 4906) 1616 Global Change: Climate variability (1635, 3305, 3309, 4215, 4513). KW - Pollution monitoring KW - Weather KW - Cloud-radiation relationships KW - Evaporation KW - Solar radiation KW - Low clouds KW - Haze KW - Clouds KW - Air pollution KW - Radiation KW - China, People's Rep. KW - Cloud effects on radiative heating KW - P 0000:AIR POLLUTION KW - M2 551.501:Methods of Observation/Computations (551.501) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17064209?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=More+frequent+cloud-free+sky+and+less+surface+solar+radiation+in+China+from+1955+to+2000&rft.au=Qian%2C+Yun%3BKaiser%2C+Dale+P%3BLeung%2C+LRuby%3BXu%2C+Ming&rft.aulast=Qian&rft.aufirst=Yun&rft.date=2006-01-01&rft.volume=33&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2005GL024586 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-05-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Cloud-radiation relationships; Radiation; Evaporation; Solar radiation; Low clouds; Cloud effects on radiative heating; Haze; Air pollution; Clouds; Weather; Pollution monitoring; China, People's Rep. DO - http://dx.doi.org/10.1029/2005GL024586 ER - TY - JOUR T1 - Multiple-Year Water Balance of Soil Covers in a Semiarid Setting AN - 17061576; 6675451 AB - Surface covers are used to isolate contaminants in hazardous and low-level radioactive sites for time frames ranging from hundreds of years to millennia or more. In the absence of data for such durations, the long-term performance of surface barriers can only be represented with short-term tests or inferred from analogs and modeling. This paper provides evidence of field performance of soil covers for periods up to 17 yr. The results of lysimeter studies from a semiarid site in Washington State show that a cover design known as the Hanford Barrier, which consists of 1.5 m of silt loam above a sand-gravel capillary break, can nearly eliminate drainage. The results were similar if plants were present or not, demonstrating the robustness of the design. Furthermore, reducing the silt loam thickness to 1.0 m (as might occur via erosion), with or without plants, did not lead to drainage. When irrigated to mimic 3x average precipitation conditions, the vegetated Hanford Barrier continued to prevent drainage. Overall, the results showed no loss in performance during the 17 yr of testing. Only when plants were eliminated completely from the 3x precipitation test did drainage occur (rates ranged from 6 to 16 mm yr super(-1)). In a separate test, replacing the top 0.2 m of silt loam with dune sand and reducing the plant cover did not lead immediately to the onset of drainage, but soil matric heads within the silt loam noticeably increased. This observation suggests that dune sand migration onto a surface cover has the potential to reduce a cover's ability to minimize deep drainage. JF - Journal of Environmental Quality AU - Fayer, MJ AU - Gee, G W AD - Pacific Northwest National Laboratory, Richland, WA 99354, mike.fayer@pnl.gov Y1 - 2006/01// PY - 2006 DA - Jan 2006 SP - 366 EP - 377 PB - American Society of Agronomy Inc., 677 S. Segoe Road Madison WI 53711 USA, [mailto:lhendrickson@agronomy.org] VL - 35 IS - 1 SN - 0047-2425, 0047-2425 KW - Water Resources Abstracts; Aqualine Abstracts; Pollution Abstracts KW - Barriers KW - Hydrologic Budget KW - Model Testing KW - Loam KW - Migration KW - Pollutants KW - Sand KW - Waste disposal sites KW - Lysimeters KW - Soil Properties KW - Testing Procedures KW - Drainage KW - Radioactive wastes KW - Silt KW - Precipitation KW - Model Studies KW - Erosion KW - Semiarid environments KW - USA, Washington, Hanford KW - SW 0845:Water in soils KW - P 8000:RADIATION KW - SW 3070:Water quality control KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17061576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Multiple-Year+Water+Balance+of+Soil+Covers+in+a+Semiarid+Setting&rft.au=Fayer%2C+MJ%3BGee%2C+G+W&rft.aulast=Fayer&rft.aufirst=MJ&rft.date=2006-01-01&rft.volume=35&rft.issue=1&rft.spage=366&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/10.2134%2Fjeq2004.0391 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-05-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Erosion; Sand; Semiarid environments; Drainage; Waste disposal sites; Radioactive wastes; Testing Procedures; Barriers; Silt; Hydrologic Budget; Precipitation; Model Testing; Loam; Migration; Model Studies; Pollutants; Lysimeters; Soil Properties; USA, Washington, Hanford DO - http://dx.doi.org/10.2134/jeq2004.0391 ER - TY - JOUR T1 - Anaerobic microbial-mineral processes with Fe(III) oxides; experimental considerations and approaches AN - 1366816378; 2013-047913 JF - CMS Workshop Lectures AU - Zachara, John M AU - Fredrickson, James K AU - Kukkadapu, Ravi K AU - Gorby, Yuri A Y1 - 2006 PY - 2006 DA - 2006 SP - 117 EP - 165 PB - Clay Minerals Society, Evergreen, CO VL - 14 SN - 1521-740X, 1521-740X KW - silicates KW - experimental studies KW - iron oxides KW - geomicrobiology KW - biochemistry KW - clay mineralogy KW - iron KW - clay minerals KW - ferric iron KW - anaerobic taxa KW - organic compounds KW - organic acids KW - biogenic processes KW - chemical reactions KW - metals KW - bacteria KW - chemical properties KW - oxides KW - anaerobic environment KW - sheet silicates KW - geochemistry KW - microorganisms KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1366816378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CMS+Workshop+Lectures&rft.atitle=Anaerobic+microbial-mineral+processes+with+Fe%28III%29+oxides%3B+experimental+considerations+and+approaches&rft.au=Zachara%2C+John+M%3BFredrickson%2C+James+K%3BKukkadapu%2C+Ravi+K%3BGorby%2C+Yuri+A&rft.aulast=Zachara&rft.aufirst=John&rft.date=2006-01-01&rft.volume=14&rft.issue=&rft.spage=117&rft.isbn=9781881208150&rft.btitle=&rft.title=CMS+Workshop+Lectures&rft.issn=1521740X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 150 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2013-06-13 N1 - SubjectsTermNotLitGenreText - anaerobic environment; anaerobic taxa; bacteria; biochemistry; biogenic processes; chemical properties; chemical reactions; clay mineralogy; clay minerals; experimental studies; ferric iron; geochemistry; geomicrobiology; iron; iron oxides; metals; microorganisms; organic acids; organic compounds; oxides; sheet silicates; silicates ER - TY - JOUR T1 - Automated portable analyzer for lead(II) based on sequential flow injection and nanostructured electrochemical sensors. AN - 733831122; 18970314 AB - A fully automated portable analyzer for toxic metal ion detection based on a combination of a nanostructured electrochemical sensor and a sequential flow injection system has been developed in this work. The sensor was fabricated from a carbon paste electrode modified with acetamide phosphonic acid self-assembled monolayer on mesoporous silica (Ac-Phos SAMMS) which was embedded in a very small wall-jet (flow-onto) electrochemical cell. The electrode is solid-state and mercury-free. Samples and reagents were injected into the system and flowed through the electrochemical cell by a user programmable sequential flow technique which required minimal volume of samples and reagents and allowed the automation of the analyzer operation. The portable analyzer was evaluated for lead (Pb) detection due to the excellent binding affinity between Pb and the functional groups of Ac-Phos SAMMS as well as the great concern for Pb toxicity. Linear calibration curve was obtained in a low concentration range (1-25ppb of Pb(II)). The reproducibility was excellent; the percent relative standard deviation was 2.5 for seven consecutive measurements of 10ppb of Pb(II) solution. Excess concentrations of Ca, Ni, Co, Zn, and Mn ions in the solutions did not interfere with detection of Pb, due to the specificity and the large number of the functional groups on the electrode surface. The electrode was reliable for at least 90 measurements over 5 days. This work is an important milestone in the development of the next-generation metal ion analyzers that are portable, fully automated, and remotely controllable. JF - Talanta AU - Yantasee, Wassana AU - Timchalk, Charles AU - Fryxell, Glen E AU - Dockendorff, Brian P AU - Lin, Yuehe AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, MS:K8-93, Richland, WA 99352, USA. Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 SP - 256 EP - 261 VL - 68 IS - 2 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733831122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Talanta&rft.atitle=Automated+portable+analyzer+for+lead%28II%29+based+on+sequential+flow+injection+and+nanostructured+electrochemical+sensors.&rft.au=Yantasee%2C+Wassana%3BTimchalk%2C+Charles%3BFryxell%2C+Glen+E%3BDockendorff%2C+Brian+P%3BLin%2C+Yuehe&rft.aulast=Yantasee&rft.aufirst=Wassana&rft.date=2005-12-15&rft.volume=68&rft.issue=2&rft.spage=256&rft.isbn=&rft.btitle=&rft.title=Talanta&rft.issn=1873-3573&rft_id=info:doi/10.1016%2Fj.talanta.2005.07.013 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2012-10-02 N1 - Date created - 2008-10-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1016/j.talanta.2005.07.013 ER - TY - CPAPER T1 - Novel Hybrid Materials for Hydrogen Storage: Using Mesoporous Scaffolds to Enhance the Reactivity and Selectivity of Hydrogen Release from Ammonia Borane T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39821267; 4062228 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Autrey, T AU - Schmid, B AU - Gutowska, A AU - Stowe, A AU - Shaw, W AU - Linehan, J AU - Hess, N AU - Daemen, L AU - Brown, C AU - Mamontov, E AU - Gutowski, M Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Hydrogen KW - Ammonia KW - Storage KW - Scaffolds KW - Hybrids KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39821267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Novel+Hybrid+Materials+for+Hydrogen+Storage%3A+Using+Mesoporous+Scaffolds+to+Enhance+the+Reactivity+and+Selectivity+of+Hydrogen+Release+from+Ammonia+Borane&rft.au=Autrey%2C+T%3BSchmid%2C+B%3BGutowska%2C+A%3BStowe%2C+A%3BShaw%2C+W%3BLinehan%2C+J%3BHess%2C+N%3BDaemen%2C+L%3BBrown%2C+C%3BMamontov%2C+E%3BGutowski%2C+M&rft.aulast=Autrey&rft.aufirst=T&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Adsorption and Reaction of No@@dX@ (No and No@@d2@) on Bao/Al@@d2@O@@d3@ Storage/Reduction Materials T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39817534; 4066015 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Peden, C H AU - Szanyi, J AU - Kwak, J AU - Hanson, J C AU - Kim, D AU - Szailer, T Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Adsorption KW - Storage KW - Nitrogen compounds KW - Oxides KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39817534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Adsorption+and+Reaction+of+No%40%40dX%40+%28No+and+No%40%40d2%40%29+on+Bao%2FAl%40%40d2%40O%40%40d3%40+Storage%2FReduction+Materials&rft.au=Peden%2C+C+H%3BSzanyi%2C+J%3BKwak%2C+J%3BHanson%2C+J+C%3BKim%2C+D%3BSzailer%2C+T&rft.aulast=Peden&rft.aufirst=C&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Clustering Behavior and Structure of Lanthanide Containing Glasses T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39807457; 4061012 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Corrales, R AU - Du, J. Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Glass KW - Lanthanides KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39807457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Clustering+Behavior+and+Structure+of+Lanthanide+Containing+Glasses&rft.au=Corrales%2C+R%3BDu%2C+J.&rft.aulast=Corrales&rft.aufirst=R&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Radionuclide Sequestration on Sediments T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39806722; 4068153 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Um, W. AU - Serne, R AU - Brown, C Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Radioisotopes KW - Sediments KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39806722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Radionuclide+Sequestration+on+Sediments&rft.au=Um%2C+W.%3BSerne%2C+R%3BBrown%2C+C&rft.aulast=Um&rft.aufirst=W.&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Actinide Chemistry: Interplay of Computational Modeling and Experiment T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39806585; 4068128 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - de Jong, W AU - Cho, H M Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Actinides KW - Computer applications KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39806585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Actinide+Chemistry%3A+Interplay+of+Computational+Modeling+and+Experiment&rft.au=de+Jong%2C+W%3BCho%2C+H+M&rft.aulast=de+Jong&rft.aufirst=W&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Electron-Stimulated Reactions in Thin Water Films on Pt(111) T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39798713; 4065714 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Kimmel, G A AU - Petrik, N G Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Films KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39798713?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Electron-Stimulated+Reactions+in+Thin+Water+Films+on+Pt%28111%29&rft.au=Kimmel%2C+G+A%3BPetrik%2C+N+G&rft.aulast=Kimmel&rft.aufirst=G&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mechanistic Studies of Molecular Hydrogen Formation from Borane Ammonia Complexes: Applications for Hydrogen Storage T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39787589; 4067914 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Autrey, T AU - Smith, R AU - Schmid, B AU - Hess, N AU - Kay, B AU - Stowe, A AU - Shaw, W AU - Linehan, J AU - Gutowski, M Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Hydrogen KW - Ammonia KW - Storage KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39787589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Mechanistic+Studies+of+Molecular+Hydrogen+Formation+from+Borane+Ammonia+Complexes%3A+Applications+for+Hydrogen+Storage&rft.au=Autrey%2C+T%3BSmith%2C+R%3BSchmid%2C+B%3BHess%2C+N%3BKay%2C+B%3BStowe%2C+A%3BShaw%2C+W%3BLinehan%2C+J%3BGutowski%2C+M&rft.aulast=Autrey&rft.aufirst=T&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quantum Dynamical Simulations of Liquid Water with the TTM2-F Interaction Potential T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39787016; 4064387 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Xantheas, S S AU - Fanourgakis, G S AU - Schenter, G K Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Simulation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39787016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Quantum+Dynamical+Simulations+of+Liquid+Water+with+the+TTM2-F+Interaction+Potential&rft.au=Xantheas%2C+S+S%3BFanourgakis%2C+G+S%3BSchenter%2C+G+K&rft.aulast=Xantheas&rft.aufirst=S&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Benchmark Studies of Certain Actinide Small Molecules T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39784036; 4068136 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Li, J. Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Actinides KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39784036?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Benchmark+Studies+of+Certain+Actinide+Small+Molecules&rft.au=Li%2C+J.&rft.aulast=Li&rft.aufirst=J.&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nucleation and Growth of Calcium Phosphate onto Self-Assembled Monolayers T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39778559; 4062206 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Tarasevich, B J AU - Allara, D L Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Phosphate KW - Nucleation KW - Calcium phosphate KW - Monomolecular films KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39778559?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Nucleation+and+Growth+of+Calcium+Phosphate+onto+Self-Assembled+Monolayers&rft.au=Tarasevich%2C+B+J%3BAllara%2C+D+L&rft.aulast=Tarasevich&rft.aufirst=B&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Chemical Bonding in Ether-Metal Cation Complexes. A Molecular Orbital and Atoms-in-Molecules Computational Study T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39775787; 4067233 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Oliferenko, A A AU - Hay, B P Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Cations KW - Computer applications KW - Adhesion KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39775787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Chemical+Bonding+in+Ether-Metal+Cation+Complexes.+A+Molecular+Orbital+and+Atoms-in-Molecules+Computational+Study&rft.au=Oliferenko%2C+A+A%3BHay%2C+B+P&rft.aulast=Oliferenko&rft.aufirst=A&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Computer-aided Molecular Design of Bis-urea Architectures for Anion Recognition T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39773623; 4063841 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Bryantsev, V S AU - Hay, B P AU - Bonnesen, P A AU - Custelcean, R AU - Delmau, L H AU - Moyer, B A Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Anions KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39773623?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Computer-aided+Molecular+Design+of+Bis-urea+Architectures+for+Anion+Recognition&rft.au=Bryantsev%2C+V+S%3BHay%2C+B+P%3BBonnesen%2C+P+A%3BCustelcean%2C+R%3BDelmau%2C+L+H%3BMoyer%2C+B+A&rft.aulast=Bryantsev&rft.aufirst=V&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Metallomics and ICPMS: New Opportunities for Unique Instrumentation and Applications T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39769151; 4059023 DE: JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Koppenaal, D W AU - Barinaga, C J Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39769151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Metallomics+and+ICPMS%3A+New+Opportunities+for+Unique+Instrumentation+and+Applications&rft.au=Koppenaal%2C+D+W%3BBarinaga%2C+C+J&rft.aulast=Koppenaal&rft.aufirst=D&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Novel Highly Dispersed Tungstun Oxide Catalysts on Mesoporous Silica Synthesized using Atomic Layer Deposition T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39765856; 4061034 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Wang, Y W AU - Peden, C H AU - Kwak, J AU - Harrera, J E AU - Hu, J. Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Catalysts KW - Silica KW - Oxides KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39765856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Novel+Highly+Dispersed+Tungstun+Oxide+Catalysts+on+Mesoporous+Silica+Synthesized+using+Atomic+Layer+Deposition&rft.au=Wang%2C+Y+W%3BPeden%2C+C+H%3BKwak%2C+J%3BHarrera%2C+J+E%3BHu%2C+J.&rft.aulast=Wang&rft.aufirst=Y&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Novel Highly Dispersed Tungsten Oxide Catalysts on Mesoporous Silica Obtained by Atomic Layer Deposition T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39765342; 4064529 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Peden, C H AU - Herrera, J E AU - Kwak, J AU - Hu, J Z AU - Wang, Y AU - Iglesia, E Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Catalysts KW - Tungsten KW - Silica KW - Tungsten oxide KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39765342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Novel+Highly+Dispersed+Tungsten+Oxide+Catalysts+on+Mesoporous+Silica+Obtained+by+Atomic+Layer+Deposition&rft.au=Peden%2C+C+H%3BHerrera%2C+J+E%3BKwak%2C+J%3BHu%2C+J+Z%3BWang%2C+Y%3BIglesia%2C+E&rft.aulast=Peden&rft.aufirst=C&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Theoretical Investigation of Processes in the Radiolysis of Complex Aqueous Media T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39728962; 4064642 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Dupuis, M AU - Furuhamam, A AU - Camaioni, D M AU - Gilcrease, Q Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Radiolysis KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39728962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Theoretical+Investigation+of+Processes+in+the+Radiolysis+of+Complex+Aqueous+Media&rft.au=Dupuis%2C+M%3BFuruhamam%2C+A%3BCamaioni%2C+D+M%3BGilcrease%2C+Q&rft.aulast=Dupuis&rft.aufirst=M&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Intermolecular Non-Classical Dihydrogen Bonds. Novel Approaches to Hydrogen Storage? T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39727932; 4067464 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Autrey, T AU - Chen, Y AU - Balasubramanian, M AU - Linehan, J AU - Fulton, J AU - Gutowski, M Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Hydrogen KW - Storage KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39727932?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Intermolecular+Non-Classical+Dihydrogen+Bonds.+Novel+Approaches+to+Hydrogen+Storage%3F&rft.au=Autrey%2C+T%3BChen%2C+Y%3BBalasubramanian%2C+M%3BLinehan%2C+J%3BFulton%2C+J%3BGutowski%2C+M&rft.aulast=Autrey&rft.aufirst=T&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Significance of Cluster Thermodynamics and Kinetics on Nucleation T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39726427; 4064389 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Kathmann, S M AU - Schenter, G K AU - Garrett, B C Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Kinetics KW - Thermodynamics KW - Nucleation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39726427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Significance+of+Cluster+Thermodynamics+and+Kinetics+on+Nucleation&rft.au=Kathmann%2C+S+M%3BSchenter%2C+G+K%3BGarrett%2C+B+C&rft.aulast=Kathmann&rft.aufirst=S&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ion Trap ICPMS: Revisited, Linearized and Magnetized T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39724160; 4059237 DE: JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Koppenaal, D W AU - Barinaga, C J Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39724160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Ion+Trap+ICPMS%3A+Revisited%2C+Linearized+and+Magnetized&rft.au=Koppenaal%2C+D+W%3BBarinaga%2C+C+J&rft.aulast=Koppenaal&rft.aufirst=D&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Protein-Crystal Interactions Involved in Calcium Phosphate Formation T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39722742; 4062364 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Tarasevich, B J AU - Shaw, W J AU - Malcolm, S L Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Phosphate KW - Calcium phosphate KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39722742?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Protein-Crystal+Interactions+Involved+in+Calcium+Phosphate+Formation&rft.au=Tarasevich%2C+B+J%3BShaw%2C+W+J%3BMalcolm%2C+S+L&rft.aulast=Tarasevich&rft.aufirst=B&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Portable Analyzer Based on Sequential Injection/nanostructured Electrochemical Sensors for Environmental Monitoring T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39717433; 4059328 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Lin, Y AU - Yantasee, W AU - Fryxell, G Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Environmental monitoring KW - Electrochemistry KW - Sensors KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39717433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Portable+Analyzer+Based+on+Sequential+Injection%2Fnanostructured+Electrochemical+Sensors+for+Environmental+Monitoring&rft.au=Lin%2C+Y%3BYantasee%2C+W%3BFryxell%2C+G&rft.aulast=Lin&rft.aufirst=Y&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Rational Design of Preorganized Polyether Macrocyclic Receptors for Cation Binding: A Fully Integrated Computational Methodology T2 - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AN - 39679468; 4064257 JF - 2005 International Chemical Congress of Pacific Basin Societies (PACIFICHEM 2005) AU - Oliferenko, A A AU - Hay, B P Y1 - 2005/12/15/ PY - 2005 DA - 2005 Dec 15 KW - Cations KW - Polyethers KW - Computer applications KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39679468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.atitle=Rational+Design+of+Preorganized+Polyether+Macrocyclic+Receptors+for+Cation+Binding%3A+A+Fully+Integrated+Computational+Methodology&rft.au=Oliferenko%2C+A+A%3BHay%2C+B+P&rft.aulast=Oliferenko&rft.aufirst=A&rft.date=2005-12-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+International+Chemical+Congress+of+Pacific+Basin+Societies+%28PACIFICHEM+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.pacifichem.org/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Regulated Shedding of EGFR Ligands is Controlled by Oligomerization T2 - 45th Annual Meeting of the American Society for Cell Biology AN - 39754546; 4032420 JF - 45th Annual Meeting of the American Society for Cell Biology AU - Newton, G J AU - Opresko, L K AU - Panther, D J AU - Orr, G AU - Quesenberry, R D AU - Wiley, H S Y1 - 2005/12/10/ PY - 2005 DA - 2005 Dec 10 KW - Epidermal growth factor receptors KW - Oligomerization KW - Ligands KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39754546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+American+Society+for+Cell+Biology&rft.atitle=Regulated+Shedding+of+EGFR+Ligands+is+Controlled+by+Oligomerization&rft.au=Newton%2C+G+J%3BOpresko%2C+L+K%3BPanther%2C+D+J%3BOrr%2C+G%3BQuesenberry%2C+R+D%3BWiley%2C+H+S&rft.aulast=Newton&rft.aufirst=G&rft.date=2005-12-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+American+Society+for+Cell+Biology&rft.issn=&rft_id=info:doi/ L2 - http://www.ascb.org/meetings/am2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Transactivation of the EGF Receptor in Human Mammary Epithelial Cells by UTP and ATP Requires Ectodomain Shedding of EGF Receptor Ligands T2 - 45th Annual Meeting of the American Society for Cell Biology AN - 39689126; 4033219 JF - 45th Annual Meeting of the American Society for Cell Biology AU - Ippolito, D L Y1 - 2005/12/10/ PY - 2005 DA - 2005 Dec 10 KW - Mammary gland KW - Epithelial cells KW - ATP KW - Epidermal growth factor KW - Ligands KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39689126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+American+Society+for+Cell+Biology&rft.atitle=Transactivation+of+the+EGF+Receptor+in+Human+Mammary+Epithelial+Cells+by+UTP+and+ATP+Requires+Ectodomain+Shedding+of+EGF+Receptor+Ligands&rft.au=Ippolito%2C+D+L&rft.aulast=Ippolito&rft.aufirst=D&rft.date=2005-12-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+American+Society+for+Cell+Biology&rft.issn=&rft_id=info:doi/ L2 - http://www.ascb.org/meetings/am2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Receptor Downregulation Confers Response Robustness upon the EGFR System T2 - 45th Annual Meeting of the American Society for Cell Biology AN - 39682064; 4032416 JF - 45th Annual Meeting of the American Society for Cell Biology AU - Shankaran, H AU - Wiley, H S AU - Resat, H Y1 - 2005/12/10/ PY - 2005 DA - 2005 Dec 10 KW - Epidermal growth factor receptors KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39682064?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=45th+Annual+Meeting+of+the+American+Society+for+Cell+Biology&rft.atitle=Receptor+Downregulation+Confers+Response+Robustness+upon+the+EGFR+System&rft.au=Shankaran%2C+H%3BWiley%2C+H+S%3BResat%2C+H&rft.aulast=Shankaran&rft.aufirst=H&rft.date=2005-12-10&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=45th+Annual+Meeting+of+the+American+Society+for+Cell+Biology&rft.issn=&rft_id=info:doi/ L2 - http://www.ascb.org/meetings/am2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Control of Fe(III) site occupancy on the rate and extent of microbial reduction of Fe(III) in nontronite AN - 51476440; 2007-025772 AB - A quantitative study was performed to understand how Fe(III) site occupancy controls Fe(III) bioreduction in nontronite by Shewanella putrefaciens CN32. NAu-1 and NAu-2 were nontronites and contained Fe(III) in different structural sites with 16 and 23% total iron (w/w), respectively, with almost all iron as Fe(III). Mossbauer spectroscopy showed that Fe(III) was present in the octahedral site in NAu-1 (with a small amount of goethite), but in both the tetrahedral and the octahedral sites in NAu-2. Mossbauer data further showed that the octahedral Fe(III) in NAu-2 existed in at least two environments - trans (M1) and cis (M2) sites. The microbial Fe(III) reduction in NAu-1 and NAu-2 was studied in batch cultures at a nontronite concentration of 5 mg/mL in bicarbonate buffer with lactate as the electron donor. The unreduced and bioreduced nontronites were characterized by X-ray diffraction (XRD), Mossbauer spectroscopy, and transmission electron microscopy (TEM). In the presence of an electron shuttle, anthraquinone-2,6-disulfonate (AQDS), the extent of bioreduction was 11%-16% for NAu-1 but 28%-32% for NAu-2. The extent of reduction in the absence of AQDS was only 5%-7% for NAu-1 but 14%-18% for NAu-2. The control experiments with heat killed cells and without cells did not show any appreciable reduction (<2%). The extent of reduction in experiments performed with a dialysis membrane to separate cells from clays (without AQDS) was 2%-3% for NAu-1 but 5%-7% for NAu-2, suggesting that cells probably released an electron shuttling compound and/or Fe(III) chelator. The reduction rate was also faster in NAu-2 than that in NAu-1. Mossbauer data of the bioreduced nontronite materials indicated that the Fe(III) reduction in NAu-1 was mostly from the presence of goethite, whereas the reduction in NAu-2 was due to the presence of the tetrahedral and trans-octahedral Fe(III) in the structure. The measured aqueous Fe(II) was negligible. As a result of bioreduction, the average nontronite particle thickness remained nearly the same (from 2.1 to 2.5 nm) for NAu-1, but decreased significantly from 6 to 3.5 nm for NAu-2 with a concomitant change in crystal size distribution. The decrease in crystal size suggests reductive dissolution of nontronite NAu-2, which was supported by aqueous solution chemistry (i.e., aqueous Si). These data suggest that the more extensive Fe(III) bioreduction in NAu-2 was due to the presence of the tetrahedral and the trans-octahedral Fe(III), which was presumed to be more reducible. The biogenic Fe(II) was not associated with biogenic solids or in the aqueous solution. We infer that it may be either adsorbed onto surfaces of nontronite particles/bacteria or in the structure of nontronite. Furthermore, we have demonstrated that natural nontronite clays were capable of supporting cell growth even in medium without added nutrients, possibly due to presence of naturally existing nutrients in the nontronite clays. These results suggest that crystal chemical environment of Fe(III) is an important determinant in controlling the rate and extent of microbial reduction of Fe(III) in nontronite. JF - Geochimica et Cosmochimica Acta AU - Jaisi, Deb P AU - Kukkadapu, Ravi K AU - Eberl, Dennis D AU - Dong, Hailiang Y1 - 2005/12// PY - 2005 DA - December 2005 SP - 5429 EP - 5440 PB - Elsevier, New York, NY VL - 69 IS - 23 SN - 0016-7037, 0016-7037 KW - silicates KW - X-ray diffraction data KW - biochemistry KW - crystal structure KW - aqueous solutions KW - nontronite KW - TEM data KW - Shewanella KW - iron KW - clay minerals KW - controls KW - biogenic processes KW - dissolved materials KW - metals KW - bacteria KW - sheet silicates KW - spectra KW - reduction KW - chemical composition KW - geochemistry KW - Mossbauer spectra KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51476440?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Control+of+Fe%28III%29+site+occupancy+on+the+rate+and+extent+of+microbial+reduction+of+Fe%28III%29+in+nontronite&rft.au=Jaisi%2C+Deb+P%3BKukkadapu%2C+Ravi+K%3BEberl%2C+Dennis+D%3BDong%2C+Hailiang&rft.aulast=Jaisi&rft.aufirst=Deb&rft.date=2005-12-01&rft.volume=69&rft.issue=23&rft.spage=5429&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2005.07.008 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 57 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; bacteria; biochemistry; biogenic processes; chemical composition; clay minerals; controls; crystal structure; dissolved materials; geochemistry; iron; metals; microorganisms; Mossbauer spectra; nontronite; reduction; sheet silicates; Shewanella; silicates; spectra; TEM data; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2005.07.008 ER - TY - JOUR T1 - Sensitivity analysis and assessment of prior model probabilities in MLBMA with application to unsaturated fractured tuff AN - 51438325; 2007-052060 JF - Water Resources Research AU - Ye, Ming AU - Neuman, Shlomo P AU - Meyer, Philip D AU - Pohlmann, Karl Y1 - 2005/12// PY - 2005 DA - December 2005 EP - W12429 PB - American Geophysical Union, Washington, DC VL - 41 IS - 12 SN - 0043-1397, 0043-1397 KW - hydrology KW - fractured materials KW - volcanic rocks KW - numerical models KW - Bayesian analysis KW - igneous rocks KW - entropy KW - statistical analysis KW - unsaturated zone KW - prediction KW - mathematical models KW - pyroclastics KW - sensitivity analysis KW - mathematical methods KW - water regimes KW - probability KW - tuff KW - uncertainty KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51438325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Sensitivity+analysis+and+assessment+of+prior+model+probabilities+in+MLBMA+with+application+to+unsaturated+fractured+tuff&rft.au=Ye%2C+Ming%3BNeuman%2C+Shlomo+P%3BMeyer%2C+Philip+D%3BPohlmann%2C+Karl&rft.aulast=Ye&rft.aufirst=Ming&rft.date=2005-12-01&rft.volume=41&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2005WR004260 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Bayesian analysis; entropy; fractured materials; hydrology; igneous rocks; mathematical methods; mathematical models; numerical models; prediction; probability; pyroclastics; sensitivity analysis; statistical analysis; tuff; uncertainty; unsaturated zone; volcanic rocks; water regimes DO - http://dx.doi.org/10.1029/2005WR004260 ER - TY - JOUR T1 - Cell adhesion of Shewanella oneidensis to iron oxide minerals; effect of different single crystal faces AN - 51312765; 2008-004657 AB - The results of experiments designed to test the hypothesis that near-surface molecular structure of iron oxide minerals influences adhesion of dissimilatory iron reducing bacteria are presented. These experiments involved the measurement, using atomic force microscopy, of interaction forces generated between Shewanella oneidensis MR-1 cells and single crystal growth faces of iron oxide minerals. Significantly different adhesive force was measured between cells and the (001) face of hematite, and the (100) and (111) faces of magnetite. A role for electrostatic interactions is apparent. The trend in relative forces of adhesion generated at the mineral surfaces is in agreement with predicted ferric site densities published previously. These results suggest that near-surface structure does indeed influence initial cell attachment to iron oxide surfaces; whether this is mediated via specific cell surface-mineral surface interactions or by more general interfacial phenomena remains untested. JF - Geochemical Transactions AU - Neal, Andrew L AU - Bank, Tracy L AU - Hochella, Michael F, Jr AU - Rosso, Kevin M Y1 - 2005/12// PY - 2005 DA - December 2005 PB - BioMed Central, London VL - 6 IS - 6 SN - 1467-4866, 1467-4866 KW - surface properties KW - iron oxides KW - geomicrobiology KW - techniques KW - analysis KW - Shewanella KW - sample preparation KW - atomic force microscopy data KW - bacteria KW - oxides KW - adhesion KW - microorganisms KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51312765?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Neal%2C+Andrew+L%3BBank%2C+Tracy+L%3BHochella%2C+Michael+F%2C+Jr%3BRosso%2C+Kevin+M&rft.aulast=Neal&rft.aufirst=Andrew&rft.date=2005-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Cell+adhesion+of+Shewanella+oneidensis+to+iron+oxide+minerals%3B+effect+of+different+single+crystal+faces&rft.title=Cell+adhesion+of+Shewanella+oneidensis+to+iron+oxide+minerals%3B+effect+of+different+single+crystal+faces&rft.issn=14674866&rft_id=info:doi/10.1063%2F1.2151110 L2 - http://www.rsc.org/Publishing/Journals/GT/Index.asp LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 47 N1 - Document feature - illus. N1 - SuppNotes - Accessed on May 24, 2007 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adhesion; analysis; atomic force microscopy data; bacteria; geomicrobiology; iron oxides; microorganisms; oxides; sample preparation; Shewanella; surface properties; techniques DO - http://dx.doi.org/10.1063/1.2151110 ER - TY - JOUR T1 - Integrated Ocean Drilling Program Expedition 311 preliminary report; Cascadia Margin gas hydrates; 28 August-28 October 2005 AN - 51301895; 2008-016939 AB - A transect of four sites (U1325, U1326, U1327, and U1329) across the Northern Cascadia margin was cored during Integrated Ocean Drilling Program Expedition 311 to study gas hydrate occurrences and formation models for accretionary complexes. In addition to the transect sites, a fifth site (U1328), representing a cold vent with active fluid and gas flow, was visited. The four transect sites represent different stages in the evolution of gas hydrate across the margin from the earliest occurrence on the westernmost first accreted ridge (Site U1326) to its final stage at the eastward limit of gas hydrate occurrence on the margin in shallower water (Site U1329). Logging while drilling/measurement while drilling carried out at the start of the expedition prior to coring provided a set of measurements that guided subsequent coring and special tool deployments at all five sites. Additional wireline logging at each site and two vertical seismic profiles at Sites U1327 and U1328 were completed. A total of 1217.76 m of sediment core was recovered using the advanced piston corer and extended core barrel systems, interspersed with 24 (16 successful) pressure core sampler runs for onboard degassing experiments and 19 Fugro piston corer/HYACE deployments; 4 of these pressure cores were stored under in situ pressure for subsequent shore-based studies. Indirect evidence of the presence of gas hydrate included increased electrical resistivities and P-wave velocities on downhole logs and low-salinity interstitial water anomalies, numerous infrared cold spots, and decreases in void gas C1/C2 ratios, as well as gas hydrate-related sedimentological moussy/soupy textures in recovered cores. Gas hydrate was also observed directly in the recovered cores, and >30 gas hydrate samples were preserved in liquid nitrogen for shore-based studies. The combined observations show that gas hydrate mainly occurs within coarser-grained turbidite sands and silts. The occurrence of gas hydrate appears to be controlled by several key factors, and the concentration of gas hydrate changes significantly as those factors vary in the sediments along the margin. The key controlling factors are (1) local methane solubility linked with pore water salinity, (2) fluid/gas advection rates, and (3) availability of suitable host material (coarse-grained sediments). In the previous model for gas hydrate formation in an accretionary margin, the highest concentrations of gas hydrate were expected to occur localized near the base of the gas hydrate stability zone above the bottom-simulating reflector (BSR), with concentrations gradually decreasing upward as a result of pervasive fluid advection from overall tectonically driven fluid expulsion. However, the results of Expedition 311 show that this model is too simple and that there are additional overprinting factors. Although evidence for widespread gas hydrate-related BSRs was observed in the data, by far the largest concentrations of gas hydrate were observed at the top of the gas hydrate occurrence zone, at a point where the amount of methane in the pore fluid exceeds the local methane solubility threshold. This was especially observed at Sites U1326 and U1327, where gas hydrate deposits several tens of meters thick occur at a shallow depth of approximately 100 meters below seafloor (mbsf) with concentrations locally exceeding 80% of the pore volume. Another site of very large gas hydrate concentrations was found at the cold vent Site U1328, where beds of massive gas hydrate occur within the top approximately 40 mbsf with concentrations exceeding 80% of the pore space as a result of focused fluid/gas migration from underneath. JF - Preliminary Report (Integrated Ocean Drilling Program) AU - Collett, Timothy S AU - Riedel, Michael AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005/12// PY - 2005 DA - December 2005 SP - 104 PB - IODP Management International, College Station, TX VL - 311 SN - 1932-9423, 1932-9423 KW - seismic stratigraphy KW - subduction zones KW - Northeast Pacific KW - gas hydrates KW - IODP Site U1326 KW - IODP Site U1327 KW - IODP Site U1328 KW - IODP Site U1329 KW - temperature KW - IODP Site U1325 KW - chemostratigraphy KW - stratigraphic units KW - Pacific Coast KW - Expedition 311 KW - East Pacific KW - alkanes KW - seismic methods KW - physical properties KW - organic compounds KW - Canada KW - North Pacific KW - fluid pressure KW - hydrocarbons KW - accretionary wedges KW - surveys KW - geophysical profiles KW - slope stability KW - pore water KW - lithostratigraphy KW - geophysical surveys KW - natural gas KW - aliphatic hydrocarbons KW - stability KW - petroleum KW - fluid phase KW - downhole methods KW - cores KW - bottom-simulating reflectors KW - Cenozoic KW - marine sediments KW - sediments KW - drilling KW - geochemistry KW - migration KW - seismic profiles KW - methane KW - well logs KW - geophysical methods KW - British Columbia KW - Integrated Ocean Drilling Program KW - hydrochemistry KW - genesis KW - volatiles KW - boreholes KW - Vancouver Island KW - Pacific Ocean KW - marine drilling KW - Western Canada KW - Cascadia subduction zone KW - 29A:Economic geology, geology of energy sources KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51301895?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Collett%2C+Timothy+S%3BRiedel%2C+Michael%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Collett&rft.aufirst=Timothy&rft.date=2005-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Integrated+Ocean+Drilling+Program+Expedition+311+preliminary+report%3B+Cascadia+Margin+gas+hydrates%3B+28+August-28+October+2005&rft.title=Integrated+Ocean+Drilling+Program+Expedition+311+preliminary+report%3B+Cascadia+Margin+gas+hydrates%3B+28+August-28+October+2005&rft.issn=19329423&rft_id=info:doi/10.2204%2Fiodp.pr.311.2005 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 54 N1 - PubXState - TX N1 - Document feature - illus. incl. sects., 3 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accretionary wedges; aliphatic hydrocarbons; alkanes; boreholes; bottom-simulating reflectors; British Columbia; Canada; Cascadia subduction zone; Cenozoic; chemostratigraphy; cores; downhole methods; drilling; East Pacific; Expedition 311; fluid phase; fluid pressure; gas hydrates; genesis; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; hydrocarbons; hydrochemistry; Integrated Ocean Drilling Program; IODP Site U1325; IODP Site U1326; IODP Site U1327; IODP Site U1328; IODP Site U1329; lithostratigraphy; marine drilling; marine sediments; methane; migration; natural gas; North Pacific; Northeast Pacific; organic compounds; Pacific Coast; Pacific Ocean; petroleum; physical properties; pore water; sediments; seismic methods; seismic profiles; seismic stratigraphy; slope stability; stability; stratigraphic units; subduction zones; surveys; temperature; Vancouver Island; volatiles; well logs; Western Canada DO - http://dx.doi.org/10.2204/iodp.pr.311.2005 ER - TY - JOUR T1 - Origin of the Grande Ronde Basalts, Columbia River Basalt Group AN - 50513281; 2009-023416 JF - Eos, Transactions, American Geophysical Union AU - Durand, S R AU - Sen, G AU - Reidel, S P AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract V41C EP - 1454 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Washington KW - volcanic rocks KW - lithosphere KW - igneous rocks KW - data processing KW - Columbia River Basalt Group KW - mantle KW - Grande Ronde Basalt KW - Miocene KW - melts KW - computer programs KW - Cenozoic KW - Tertiary KW - mineral composition KW - Neogene KW - metamorphic rocks KW - basalts KW - eclogite KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50513281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Origin+of+the+Grande+Ronde+Basalts%2C+Columbia+River+Basalt+Group&rft.au=Durand%2C+S+R%3BSen%2C+G%3BReidel%2C+S+P%3BAnonymous&rft.aulast=Durand&rft.aufirst=S&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; Columbia River Basalt Group; computer programs; data processing; eclogite; Grande Ronde Basalt; igneous rocks; lithosphere; mantle; melts; metamorphic rocks; mineral composition; Miocene; Neogene; Tertiary; United States; volcanic rocks; Washington ER - TY - JOUR T1 - Mobility controlled flooding (MCF) technology for enhanced sweeping and NAPL remediation in heterogeneous systems AN - 50448578; 2009-045326 JF - Eos, Transactions, American Geophysical Union AU - Zhong, L AU - Oostrom, M AU - Wietsma, T AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H23A EP - 1415 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - technology KW - pollutants KW - injection KW - pollution KW - mobility controlled flooding KW - remediation KW - nonaqueous phase liquids KW - heterogeneous materials KW - viscosity KW - pore pressure KW - surfactants KW - polymers KW - mobility KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50448578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Mobility+controlled+flooding+%28MCF%29+technology+for+enhanced+sweeping+and+NAPL+remediation+in+heterogeneous+systems&rft.au=Zhong%2C+L%3BOostrom%2C+M%3BWietsma%2C+T%3BAnonymous&rft.aulast=Zhong&rft.aufirst=L&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - heterogeneous materials; injection; mobility; mobility controlled flooding; nonaqueous phase liquids; permeability; pollutants; pollution; polymers; pore pressure; remediation; surfactants; technology; viscosity ER - TY - JOUR T1 - Experimental investigation of DNAPL mass flux reduction as a function of source zone mass removal AN - 50447485; 2009-045324 JF - Eos, Transactions, American Geophysical Union AU - DiFilippo, E L AU - Brusseau, M L AU - Oostrom, M AU - Wietsma, T W AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H23A EP - 1413 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - chlorinated hydrocarbons KW - experimental studies KW - technology KW - in situ KW - pollutants KW - effluents KW - dense nonaqueous phase liquids KW - depth KW - remediation KW - carbon tetrachloride KW - nonaqueous phase liquids KW - organic compounds KW - halogenated hydrocarbons KW - mass transfer KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50447485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Experimental+investigation+of+DNAPL+mass+flux+reduction+as+a+function+of+source+zone+mass+removal&rft.au=DiFilippo%2C+E+L%3BBrusseau%2C+M+L%3BOostrom%2C+M%3BWietsma%2C+T+W%3BAnonymous&rft.aulast=DiFilippo&rft.aufirst=E&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - carbon tetrachloride; chlorinated hydrocarbons; dense nonaqueous phase liquids; depth; effluents; experimental studies; halogenated hydrocarbons; in situ; mass transfer; nonaqueous phase liquids; organic compounds; pollutants; remediation; technology ER - TY - JOUR T1 - Multidimensional, multifluid intermediate-scale experiments; review and recommendations for future research AN - 50447457; 2009-045306 JF - Eos, Transactions, American Geophysical Union AU - Oostrom, M AU - Dane, J H AU - Wietsma, T W AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H22A EP - 01 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - experimental studies KW - numerical models KW - pollutants KW - pollution KW - porous materials KW - research KW - remediation KW - ground water KW - nonaqueous phase liquids KW - transport KW - movement KW - multiphase flow KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50447457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Multidimensional%2C+multifluid+intermediate-scale+experiments%3B+review+and+recommendations+for+future+research&rft.au=Oostrom%2C+M%3BDane%2C+J+H%3BWietsma%2C+T+W%3BAnonymous&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - experimental studies; ground water; movement; multiphase flow; nonaqueous phase liquids; numerical models; pollutants; pollution; porous materials; remediation; research; transport ER - TY - JOUR T1 - Isotope tracking of contaminant movement in the Hanford vadose zone AN - 50447291; 2009-045260 JF - Eos, Transactions, American Geophysical Union AU - Conrad, M E AU - Christensen, J N AU - DePaolo, D J AU - Dresel, P E AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H21E EP - 1384 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - United States KW - oxygen KW - isotopes KW - unsaturated zone KW - stable isotopes KW - radioactive waste KW - nitrogen KW - ground water KW - radioactive isotopes KW - technetium KW - migration KW - alkaline earth metals KW - Washington KW - N-15/N-14 KW - pollutants KW - isotope ratios KW - nitrates KW - Hanford Site KW - Tc-99 KW - O-18/O-16 KW - Sr-87/Sr-86 KW - metals KW - uranium KW - U-238/U-234 KW - waste disposal KW - U-238/U-235 KW - U-238/U-236 KW - actinides KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50447291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Isotope+tracking+of+contaminant+movement+in+the+Hanford+vadose+zone&rft.au=Conrad%2C+M+E%3BChristensen%2C+J+N%3BDePaolo%2C+D+J%3BDresel%2C+P+E%3BAnonymous&rft.aulast=Conrad&rft.aufirst=M&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; ground water; Hanford Site; isotope ratios; isotopes; metals; migration; N-15/N-14; nitrates; nitrogen; O-18/O-16; oxygen; pollutants; radioactive isotopes; radioactive waste; Sr-87/Sr-86; stable isotopes; strontium; Tc-99; technetium; U-238/U-234; U-238/U-235; U-238/U-236; United States; unsaturated zone; uranium; Washington; waste disposal ER - TY - JOUR T1 - Cation exchange reactions controlling desorption of (super 90) Sr (super 2+) from coarse-grained contaminated sediments at the Hanford Site, Washington AN - 50429950; 2009-043352 JF - Eos, Transactions, American Geophysical Union AU - McKinley, J P AU - Zachara, J M AU - Smith, S C AU - Liu, C AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract V43B EP - 1582 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - United States KW - clay KW - Sr-90 KW - alkaline earth metals KW - desorption KW - Washington KW - cation exchange capacity KW - isotopes KW - clastic sediments KW - unsaturated zone KW - pollution KW - Hanford Site KW - migration of elements KW - equilibrium KW - radioactive waste KW - radioactive isotopes KW - chemical reactions KW - metals KW - fine-grained materials KW - sediments KW - waste disposal KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50429950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Cation+exchange+reactions+controlling+desorption+of+%28super+90%29+Sr+%28super+2%2B%29+from+coarse-grained+contaminated+sediments+at+the+Hanford+Site%2C+Washington&rft.au=McKinley%2C+J+P%3BZachara%2C+J+M%3BSmith%2C+S+C%3BLiu%2C+C%3BAnonymous&rft.aulast=McKinley&rft.aufirst=J&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; cation exchange capacity; chemical reactions; clastic sediments; clay; desorption; equilibrium; fine-grained materials; Hanford Site; isotopes; metals; migration of elements; pollution; radioactive isotopes; radioactive waste; sediments; Sr-90; strontium; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - Mixing of groundwater and surface water under diurnal and seasonal river stage cycles AN - 50423498; 2009-053333 JF - Eos, Transactions, American Geophysical Union AU - Waichler, S R AU - Yabusaki, S B AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H23F EP - 1497 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - Washington KW - isotopes KW - Columbia River KW - surface water KW - unsaturated zone KW - pollution KW - Hanford Site KW - migration of elements KW - preferential flow KW - two-dimensional models KW - ground water KW - aquifers KW - fluctuations KW - recharge KW - hydrologic cycle KW - radioactive isotopes KW - multiphase flow KW - diurnal variations KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50423498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Mixing+of+groundwater+and+surface+water+under+diurnal+and+seasonal+river+stage+cycles&rft.au=Waichler%2C+S+R%3BYabusaki%2C+S+B%3BAnonymous&rft.aulast=Waichler&rft.aufirst=S&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; Columbia River; diurnal variations; fluctuations; ground water; Hanford Site; hydrologic cycle; hydrology; isotopes; migration of elements; multiphase flow; pollution; preferential flow; radioactive isotopes; recharge; surface water; two-dimensional models; United States; unsaturated zone; Washington ER - TY - JOUR T1 - Assessment of surface and groundwater interactions and their impacts on land-atmosphere coupling system AN - 50422817; 2009-055196 JF - Eos, Transactions, American Geophysical Union AU - Liang, X AU - Leung, L R AU - Huang, M AU - Qian, Y AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H11G EP - 02 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - hydrology KW - surface water KW - atmosphere KW - energy balance KW - boundary interactions KW - ground water KW - water table KW - hydrologic cycle KW - dynamics KW - sensitivity analysis KW - water resources KW - climate KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50422817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessment+of+surface+and+groundwater+interactions+and+their+impacts+on+land-atmosphere+coupling+system&rft.au=Liang%2C+X%3BLeung%2C+L+R%3BHuang%2C+M%3BQian%2C+Y%3BAnonymous&rft.aulast=Liang&rft.aufirst=X&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmosphere; boundary interactions; climate; dynamics; energy balance; ground water; hydrologic cycle; hydrology; sensitivity analysis; surface water; water resources; water table ER - TY - JOUR T1 - Hydrologic scenario uncertainty in a comprehensive assessment of hydrogeologic uncertainty AN - 50422560; 2009-055212 JF - Eos, Transactions, American Geophysical Union AU - Nicholson, T J AU - Meyer, P D AU - Ye, M AU - Neuman, S P AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H13A EP - 1321 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - models KW - hydrology KW - maximum likelihood KW - Bayesian analysis KW - statistical analysis KW - theoretical models KW - prediction KW - probability KW - uncertainty KW - land use KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50422560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Hydrologic+scenario+uncertainty+in+a+comprehensive+assessment+of+hydrogeologic+uncertainty&rft.au=Nicholson%2C+T+J%3BMeyer%2C+P+D%3BYe%2C+M%3BNeuman%2C+S+P%3BAnonymous&rft.aulast=Nicholson&rft.aufirst=T&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Bayesian analysis; hydrology; land use; maximum likelihood; models; prediction; probability; statistical analysis; theoretical models; uncertainty ER - TY - JOUR T1 - Field scale simulation of uranium reactive transport for the Hanford 300 area AN - 50421658; 2009-055184 JF - Eos, Transactions, American Geophysical Union AU - Fang, Y AU - Yabusaki, S AU - Waichler, S AU - Anonymous Y1 - 2005/12// PY - 2005 DA - December 2005 SP - Abstract H11D EP - 1306 PB - American Geophysical Union, Washington, DC VL - 86 IS - 52, SUPPL. SN - 0096-3941, 0096-3941 KW - United States KW - solute transport KW - sorption KW - stream sediments KW - unsaturated zone KW - simulation KW - ground water KW - transport KW - sediments KW - reactive transport KW - diurnal variations KW - mobility KW - kinetics KW - Washington KW - pollutants KW - Columbia River KW - Hanford Site KW - hydrochemistry KW - two-dimensional models KW - aquifers KW - metals KW - uranium KW - actinides KW - unconfined aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50421658?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Field+scale+simulation+of+uranium+reactive+transport+for+the+Hanford+300+area&rft.au=Fang%2C+Y%3BYabusaki%2C+S%3BWaichler%2C+S%3BAnonymous&rft.aulast=Fang&rft.aufirst=Y&rft.date=2005-12-01&rft.volume=86&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; aquifers; Columbia River; diurnal variations; ground water; Hanford Site; hydrochemistry; kinetics; metals; mobility; pollutants; reactive transport; sediments; simulation; solute transport; sorption; stream sediments; transport; two-dimensional models; unconfined aquifers; United States; unsaturated zone; uranium; Washington ER - TY - JOUR T1 - Global detection and characterization of hypothetical proteins in Shewanella oneidensis MR-1 using LC-MS based proteomics AN - 19935687; 6432442 AB - The availability of whole genome sequences has enabled the application of powerful tools for assaying global expression patterns in environmentally relevant bacteria such as Shewanella oneidensis MR-1. A large number of genes in prokaryote genomes, including MR-1, have been annotated as hypothetical, indicating that no similar protein has yet been identified in other organisms. Using high-sensitivity MS coupled with accurate mass and time (AMT) tag methodology, 1078 tryptic peptides were collectively detected in MR-1 cultures, 671 of which were unique to their parent protein. Using only these unique tryptic peptides and a minimum of two peptides per protein, we identified, with high confidence, the expression of 258 hypothetical proteins. These proteins ranged from 3.5 to 139 kDa, with 47 being 100 amino acid residues or less. Using a combination of information including detection in cells grown under specific culture conditions, presence within a specific cell fraction, and predictive algorithms such as PSORT and PSORT-B, possible/plausible functions are proposed for some hypothetical proteins. Further, by applying this approach a number of proteins were found not only to be expressed, but only expressed under certain culturing conditions, thereby suggesting function while at the same time isolating several proteins to distinct locales of the cell. These results demonstrate the utility of the AMT tag methodology for comprehensive profiling of the microbial proteome while confirming the expression of a large number of hypothetical genes. JF - Proteomics AU - Elias, Dwayne A AU - Monroe, Matthew E AU - Marshall, Matthew J AU - Romine, Margaret F AU - Belieav, Alexander S AU - Fredrickson, James K AU - Anderson, Gordon A AU - Smith, Richard D AU - Lipton, Mary S AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA, mary.lipton@pnl.gov Y1 - 2005/12// PY - 2005 DA - Dec 2005 SP - 3120 EP - 3130 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 12 SN - 1615-9853, 1615-9853 KW - MR-1 gene KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Accurate mass and time tag KW - Hypothetical protein KW - MS proteomics KW - Shewanella KW - Genomes KW - Amino acids KW - Shewanella oneidensis KW - Algorithms KW - Tryptic peptides KW - Cell culture KW - proteomics KW - Prokaryotes KW - G 07320:Bacterial genetics KW - W 30960:Bioinformatics & Computer Applications KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19935687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Global+detection+and+characterization+of+hypothetical+proteins+in+Shewanella+oneidensis+MR-1+using+LC-MS+based+proteomics&rft.au=Elias%2C+Dwayne+A%3BMonroe%2C+Matthew+E%3BMarshall%2C+Matthew+J%3BRomine%2C+Margaret+F%3BBelieav%2C+Alexander+S%3BFredrickson%2C+James+K%3BAnderson%2C+Gordon+A%3BSmith%2C+Richard+D%3BLipton%2C+Mary+S&rft.aulast=Elias&rft.aufirst=Dwayne&rft.date=2005-12-01&rft.volume=5&rft.issue=12&rft.spage=3120&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401140 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-04-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Genomes; Amino acids; Algorithms; Cell culture; Tryptic peptides; Prokaryotes; proteomics; Shewanella oneidensis DO - http://dx.doi.org/10.1002/pmic.200401140 ER - TY - JOUR T1 - Making Broad Proteome Protein Measurements in 1-5 min Using High-Speed RPLC Separations and High-Accuracy Mass Measurements AN - 19635011; 7374773 AB - The throughput of proteomics measurements that provide broad protein coverage is limited by the quality and speed of both the separations as well as the subsequent mass spectrometric analysis; at present, analysis times can range anywhere from hours (high throughput) to days or longer (low throughput). We have explored the basis for proteomics analyses conducted on the order of minutes using high-speed capillary RPLC combined through on-line electrospray ionization interface with high-accuracy mass spectrometry (MS) measurements. Short 0.8- mu m porous C18 particle-packed 50- mu m-i.d. capillaries were used to speed the RPLC separations while still providing high-quality separations. Both time-of-flight (TOF) and Fourier transform ion cyclotron resonance (FTICR) MS were applied for identifying peptides using the accurate mass and time (AMT) tag approach. Peptide RPLC relative retention (elution) times that were generated by solvent gradients that differed by at least 25-fold were found to provide relative elution times that agreed to within 5%, which provides the basis for using peptide AMT tags for higher throughput proteomics measurements. For fast MS acquisition speeds (e.g., 0.2 s for TOF and either similar to 0.3 or similar to 0.6 s for FTICR), peptide mass measurement accuracies of better than plus or minus 15 ppm were obtained with the high-speed RPLC separations. The ability to identify peptides and the overall proteome coverage was determined by factors that include the separation peak capacity, the sensitivity of the MS (with fast scanning), and the accuracy of both the mass measurements and the relative RPLC peptide elution times. The experimental RPLC relative elution time accuracies of 5% (using high-speed capillary RPLC) and mass measurement accuracies of better than plus or minus 15 ppm allowed for the confident identification of >2800 peptides and >760 proteins from >13 000 different putative peptides detected from a Shewanella oneidensis tryptic digest. Initial results for both RPLC-ESI-TOF and RPLC-ESI-FTICR MS were similar, with similar to 2000 different peptides from similar to 600 different proteins identified within 2-3 min. For 150-s analysis due to the improved mass accuracies attained using longer spectrum acquisition times. JF - Analytical Chemistry (Washington) AU - Shen, Y AU - Strittmatter, E F AU - Zhang, R AU - Metz, TO AU - Moore, R J AU - Li, F AU - Udseth, H R AU - Smith, R D AU - Unger, K K AU - Kumar, D AU - Lubda, D AD - Biological Science Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA Y1 - 2005/12/01/ PY - 2005 DA - 2005 Dec 01 SP - 7763 EP - 7773 VL - 77 IS - 23 SN - 0003-2700, 0003-2700 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Scanning KW - Shewanella oneidensis KW - Solvents KW - proteomics KW - Ionization KW - Mass spectroscopy KW - J 02330:Biochemistry KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19635011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Making+Broad+Proteome+Protein+Measurements+in+1-5+min+Using+High-Speed+RPLC+Separations+and+High-Accuracy+Mass+Measurements&rft.au=Shen%2C+Y%3BStrittmatter%2C+E+F%3BZhang%2C+R%3BMetz%2C+TO%3BMoore%2C+R+J%3BLi%2C+F%3BUdseth%2C+H+R%3BSmith%2C+R+D%3BUnger%2C+K+K%3BKumar%2C+D%3BLubda%2C+D&rft.aulast=Shen&rft.aufirst=Y&rft.date=2005-12-01&rft.volume=77&rft.issue=23&rft.spage=7763&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/10.1021%2Fac051257o LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Scanning; Solvents; proteomics; Ionization; Mass spectroscopy; Shewanella oneidensis DO - http://dx.doi.org/10.1021/ac051257o ER - TY - JOUR T1 - Inverse Parameter Fitting of Biological Tissues: A Response Surface Approach AN - 19449976; 7008757 AB - In this paper, we present the application of a semi-global inverse method for determining material parameters of biological tissues. The approach is based on the successive response surface method, and is illustrated by fitting constitutive parameters to two nonlinear anisotropic constitutive equations, one for aortic sinus and aortic wall, the other for aortic valve tissue. Material test data for the aortic sinus consisted of two independent orthogonal uniaxial tests. Material test data for the aortic valve was obtained from a dynamic inflation test. In each case, a numerical simulation of the experiment was performed and predictions were compared to the real data. For the uniaxial test simulation, the experimental targets were force at a measured displacement. For the inflation test, the experimental targets were the three-dimensional coordinates of material markers at a given pressure. For both sets of tissues, predictions with converged parameters showed excellent agreement with the data, and we found that the method was able to consistently identify model parameters. We believe the method will find wide application in biomedical material characterization and in diagnostic imaging. JF - Annals of Biomedical Engineering AU - Einstein, Daniel R AU - Freed, Alan D AU - Stander, Nielen AU - Fata, Bahar AU - Vesely, Ivan AD - Pacific Northwest National Laboratory, 790 Sixth Street, Richland, WA, 99354, daniel.einstein@pnl.gov Y1 - 2005/12// PY - 2005 DA - Dec 2005 SP - 1819 EP - 1830 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 33 IS - 12 SN - 0090-6964, 0090-6964 KW - Biotechnology and Bioengineering Abstracts KW - Data processing KW - Mathematical models KW - Anisotropy KW - Aortic valve KW - Aorta KW - Sinus KW - Pressure KW - imaging KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19449976?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annals+of+Biomedical+Engineering&rft.atitle=Inverse+Parameter+Fitting+of+Biological+Tissues%3A+A+Response+Surface+Approach&rft.au=Einstein%2C+Daniel+R%3BFreed%2C+Alan+D%3BStander%2C+Nielen%3BFata%2C+Bahar%3BVesely%2C+Ivan&rft.aulast=Einstein&rft.aufirst=Daniel&rft.date=2005-12-01&rft.volume=33&rft.issue=12&rft.spage=1819&rft.isbn=&rft.btitle=&rft.title=Annals+of+Biomedical+Engineering&rft.issn=00906964&rft_id=info:doi/10.1007%2Fs10439-005-8338-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Anisotropy; Mathematical models; Data processing; Aortic valve; Aorta; Sinus; Pressure; imaging DO - http://dx.doi.org/10.1007/s10439-005-8338-3 ER - TY - JOUR T1 - Desulfotomaculum and Methanobacterium spp. Dominate a 4- to 5-Kilometer-Deep Fault AN - 17431402; 6579846 AB - Alkaline, sulfidic, 54 to 60 degree C, 4 to 53 million-year-old meteoric water emanating from a borehole intersecting quartzite-hosted fractures >3.3 km beneath the surface supported a microbial community dominated by a bacterial species affiliated with Desulfotomaculum spp. and an archaeal species related to Methanobacterium spp. The geochemical homogeneity over the 650-m length of the borehole, the lack of dividing cells, and the absence of these microorganisms in mine service water support an indigenous origin for the microbial community. The coexistence of these two microorganisms is consistent with a limiting flux of inorganic carbon and SO sub(4) super(2-) in the presence of high pH, high concentrations of H sub(2) and CH sub(4), and minimal free energy for autotrophic methanogenesis. Sulfide isotopic compositions were highly enriched, consistent with microbial SO sub(4) super(2-) reduction under hydrologic isolation. An analogous microbial couple and similar abiogenic gas chemistry have been reported recently for hydrothermal carbonate vents of the Lost City near the Mid-Atlantic Ridge (D. S. Kelly et al., Science 307:1428-1434, 2005), suggesting that these features may be common to deep subsurface habitats (continental and marine) bearing this geochemical signature. The geochemical setting and microbial communities described here are notably different from microbial ecosystems reported for shallower continental subsurface environments. JF - Applied and Environmental Microbiology AU - Moser, Duane P AU - Gihring, Thomas M AU - Brockman, Fred J AU - Fredrickson, James K AU - Balkwill, David L AU - Dollhopf, Michael E AU - Lollar, Barbara Sherwood AU - Pratt, Lisa M AU - Boice, Erik AU - Southam, Gordon AU - Wanger, Greg AU - Baker, Brett J AU - Pfiffner, Susan M AU - Lin, Li-Hung AU - Onstott, T C AD - Environmental Microbiology Group, Pacific Northwest National Laboratory, Richland, Washington 99352. Department of Biomedical Sciences Biology, The Florida State University, Tallahassee, Florida 32306. Department of Geosciences, University of Toronto, Toronto, Ontario M5S 3B1, Canada. Department of Geological Sciences, Biogeochemical Laboratories, Indiana University, Bloomington, Indiana 47405. Department of Earth Sciences, University of Western Ontario, London, Ontario N6A 5B7, Canada. Earth and Planetary Sciences, University of California, Berkeley, California 94720. Center of Biomarker Analysis, University of Tennessee, Knoxville, Tennessee 37932. Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Y1 - 2005/12// PY - 2005 DA - Dec 2005 SP - 8773 EP - 8783 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 71 IS - 12 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Autotrophic microorganisms KW - Fractures KW - Habitat KW - Mines KW - Free energy KW - Methanogenesis KW - Water KW - Sulfide KW - Carbon KW - Desulfotomaculum KW - Microorganisms KW - carbonates KW - pH effects KW - Methanobacterium KW - A 01450:Environmental Pollution & Waste Treatment KW - J 02905:Water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17431402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Desulfotomaculum+and+Methanobacterium+spp.+Dominate+a+4-+to+5-Kilometer-Deep+Fault&rft.au=Moser%2C+Duane+P%3BGihring%2C+Thomas+M%3BBrockman%2C+Fred+J%3BFredrickson%2C+James+K%3BBalkwill%2C+David+L%3BDollhopf%2C+Michael+E%3BLollar%2C+Barbara+Sherwood%3BPratt%2C+Lisa+M%3BBoice%2C+Erik%3BSoutham%2C+Gordon%3BWanger%2C+Greg%3BBaker%2C+Brett+J%3BPfiffner%2C+Susan+M%3BLin%2C+Li-Hung%3BOnstott%2C+T+C&rft.aulast=Moser&rft.aufirst=Duane&rft.date=2005-12-01&rft.volume=71&rft.issue=12&rft.spage=8773&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-03-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Autotrophic microorganisms; Sulfide; Carbon; Fractures; Microorganisms; Mines; Habitat; pH effects; carbonates; Water; Methanogenesis; Free energy; Desulfotomaculum; Methanobacterium ER - TY - CPAPER T1 - Endogenously Nitrated Proteins in Mouse Brain: Possible Links to Neurodegenerative Disease T2 - 12th Annual Meeting of Society for Free Radical Biology and Medicine (SFRBM's 12th) AN - 39655663; 4052062 JF - 12th Annual Meeting of Society for Free Radical Biology and Medicine (SFRBM's 12th) AU - Bigelow, Diana Y1 - 2005/11/16/ PY - 2005 DA - 2005 Nov 16 KW - Brain KW - Neurodegenerative diseases KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39655663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=12th+Annual+Meeting+of+Society+for+Free+Radical+Biology+and+Medicine+%28SFRBM%27s+12th%29&rft.atitle=Endogenously+Nitrated+Proteins+in+Mouse+Brain%3A+Possible+Links+to+Neurodegenerative+Disease&rft.au=Bigelow%2C+Diana&rft.aulast=Bigelow&rft.aufirst=Diana&rft.date=2005-11-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=12th+Annual+Meeting+of+Society+for+Free+Radical+Biology+and+Medicine+%28SFRBM%27s+12th%29&rft.issn=&rft_id=info:doi/ L2 - http://submissions.miracd.com/sfrbm2005/Itinerary/SearchHome.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Low-LET microbeam investigation of the track-end dependence of electron-induced damage in normal human diploid fibroblasts. AN - 68714876; 16238446 AB - Using a pulsed electron beam, we investigated the dependence of micronucleus formation on the incident electron energy in AG01522 human diploid fibroblasts after nontargeted irradiations at 25 and 80 keV. Examining the dose response, we found that 25 keV electrons are more effective than 80 keV electrons at producing biological damage for a given dose. Our results demonstrating the induction of micronuclei as a function of incident electron energy offer direct support for the hypothesis that the electron track end is responsible for the biological damage occurring in the cell. JF - Radiation research AU - Sowa, Marianne B AU - Kathmann, Loel E AU - Holben, Brooke A AU - Thrall, Brian D AU - Kimmel, Gregory A AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Marianne.sowa@pnl.gov Y1 - 2005/11// PY - 2005 DA - November 2005 SP - 677 EP - 679 VL - 164 IS - 5 SN - 0033-7587, 0033-7587 KW - Index Medicus KW - Space life sciences KW - Micronucleus Tests KW - Cells, Cultured KW - Humans KW - Fibroblasts -- radiation effects KW - Dose-Response Relationship, Radiation KW - Linear Energy Transfer KW - Diploidy KW - Electrons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68714876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Low-LET+microbeam+investigation+of+the+track-end+dependence+of+electron-induced+damage+in+normal+human+diploid+fibroblasts.&rft.au=Sowa%2C+Marianne+B%3BKathmann%2C+Loel+E%3BHolben%2C+Brooke+A%3BThrall%2C+Brian+D%3BKimmel%2C+Gregory+A&rft.aulast=Sowa&rft.aufirst=Marianne&rft.date=2005-11-01&rft.volume=164&rft.issue=5&rft.spage=677&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-12-28 N1 - Date created - 2005-10-21 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Estimation of field-scale soil hydraulic and dielectric parameters through joint inversion of GPR and hydrological data AN - 51599285; 2006-036493 JF - Water Resources Research AU - Kowalsky, M B AU - Finsterle, S AU - Peterson, J AU - Hubbard, S AU - Rubin, Y AU - Majer, E AU - Ward, A AU - Gee, G Y1 - 2005/11// PY - 2005 DA - November 2005 EP - W11425 PB - American Geophysical Union, Washington, DC VL - 41 IS - 11 SN - 0043-1397, 0043-1397 KW - United States KW - Washington KW - numerical models KW - ground-penetrating radar KW - geophysical methods KW - radar methods KW - Hanford Site KW - porosity KW - dielectric properties KW - traveltime KW - applications KW - hydraulic conductivity KW - permeability KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51599285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Estimation+of+field-scale+soil+hydraulic+and+dielectric+parameters+through+joint+inversion+of+GPR+and+hydrological+data&rft.au=Kowalsky%2C+M+B%3BFinsterle%2C+S%3BPeterson%2C+J%3BHubbard%2C+S%3BRubin%2C+Y%3BMajer%2C+E%3BWard%2C+A%3BGee%2C+G&rft.aulast=Kowalsky&rft.aufirst=M&rft.date=2005-11-01&rft.volume=41&rft.issue=11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2005WR004237 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 62 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - applications; dielectric properties; geophysical methods; ground-penetrating radar; Hanford Site; hydraulic conductivity; numerical models; permeability; porosity; radar methods; traveltime; United States; Washington DO - http://dx.doi.org/10.1029/2005WR004237 ER - TY - JOUR T1 - Teacher/scientist partnership develops a simulated natural disaster scenario to enhance student learning AN - 51438718; 2007-052111 JF - Journal of Geoscience Education AU - Wurstner, Signe AU - Herr, Cheryl AU - Andrews, Gregg AU - Alley, Kathy Feaster Y1 - 2005/11// PY - 2005 DA - November 2005 SP - 522 EP - 530 PB - National Association of Geoscience Teachers, Bellingham, WA VL - 53 IS - 5 SN - 1089-9995, 1089-9995 KW - K-12 education KW - geologic hazards KW - floods KW - curricula KW - junior high school KW - education KW - simulation KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51438718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geoscience+Education&rft.atitle=Teacher%2Fscientist+partnership+develops+a+simulated+natural+disaster+scenario+to+enhance+student+learning&rft.au=Wurstner%2C+Signe%3BHerr%2C+Cheryl%3BAndrews%2C+Gregg%3BAlley%2C+Kathy+Feaster&rft.aulast=Wurstner&rft.aufirst=Signe&rft.date=2005-11-01&rft.volume=53&rft.issue=5&rft.spage=522&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geoscience+Education&rft.issn=10899995&rft_id=info:doi/ L2 - http://www.nagt.org/files/nagt/jge/abstracts/wurstner-v53n5.pdf http://www.nagt.org/nagt/jge/issues.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 18 N1 - PubXState - WA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - curricula; education; field studies; floods; geologic hazards; junior high school; K-12 education; simulation ER - TY - JOUR T1 - Removal of carbon tetrachloride from a layered porous medium by means of soil vapor extraction enhanced by desiccation and water reduction AN - 51130957; 2006-007618 AB - A two-dimensional flow cell experiment was conducted to study the removal of the carbon tetrachloride component of a DNAPL mixture from a layered porous medium through soil vapor extraction (SVE) with moist and dry air. A dual-energy radiation system was used at various times to non-intrusively determine fluid saturations. The mixture, which contained the volatile organic carbon tetrachloride, mimics the DNAPL disposed at the Hanford Site in Washington State. The flow cell, which is 100 cm long, 75 cm high and 5.5 cm wide, was packed with two sloped coarse sand and two sloped silt layers in an otherwise uniform matrix of medium-grained sand. A V-shaped fine sand layer was placed at the bottom of the flow cell to prevent DNAPL from exiting the flow cell. The water table was located 2 cm from the bottom, creating variably saturated conditions. A 500-mL spill was introduced at the top of the flow cell from a small source area. It was observed that the DNAPL largely by-passed the silt layers but easily moved into the coarse sand layers. Residual DNAPL was formed in the medium-grained sand matrix. The DNAPL caused a distinct reduction of the capillary fringe. Most of the DNAPL ended up in a pool on top of the V-shaped fine sand. Through four treatments with moist air soil vapor extraction, most residual carbon tetrachloride was removed from the medium-grained matrix and the coarse sand layers. However, soil vapor extraction with moist air was not able to remove the carbon tetrachloride from the silt layers and the pool. Through a water table reduction and subsequent soil vapor extraction with dry air, the carbon tetrachloride in the silt layers and the pool was effectively removed. Based on measurements and carbon tetrachloride vapor concentration data, it was estimated that after the final remediation treatment, almost 90% of the total mass was removed. JF - Vadose Zone Journal AU - Oostrom, M AU - Dane, J H AU - Wietsma, T W Y1 - 2005/11// PY - 2005 DA - November 2005 SP - 1170 EP - 1182 PB - Soil Science Society of America, Madison, WI VL - 4 IS - 4 KW - United States KW - scale factor KW - chlorinated hydrocarbons KW - soil vapor extraction KW - unsaturated zone KW - dibutyl butyl phosphonate KW - tetrachloroethylene KW - dense nonaqueous phase liquids KW - remediation KW - ground water KW - hydrologic cycle KW - halogenated hydrocarbons KW - water KW - soils KW - hydrology KW - Washington KW - pollution KW - Hanford Site KW - porous materials KW - water reduction KW - two-dimensional models KW - desiccation KW - carbon tetrachloride KW - nonaqueous phase liquids KW - water table KW - volatiles KW - organic compounds KW - heterogeneous materials KW - soil pollution KW - volatile organic compounds KW - Columbia Plateau KW - trichloroethylene KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51130957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Removal+of+carbon+tetrachloride+from+a+layered+porous+medium+by+means+of+soil+vapor+extraction+enhanced+by+desiccation+and+water+reduction&rft.au=Oostrom%2C+M%3BDane%2C+J+H%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2005-11-01&rft.volume=4&rft.issue=4&rft.spage=1170&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2004.0173 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 40 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon tetrachloride; chlorinated hydrocarbons; Columbia Plateau; dense nonaqueous phase liquids; desiccation; dibutyl butyl phosphonate; ground water; halogenated hydrocarbons; Hanford Site; heterogeneous materials; hydrologic cycle; hydrology; nonaqueous phase liquids; organic compounds; pollution; porous materials; remediation; scale factor; soil pollution; soil vapor extraction; soils; tetrachloroethylene; trichloroethylene; two-dimensional models; United States; unsaturated zone; volatile organic compounds; volatiles; Washington; water; water reduction; water table DO - http://dx.doi.org/10.2136/vzj2004.0173 ER - TY - JOUR T1 - Identifying the Potential Loss of Monitoring Wells Using an Uncertainty Analysis AN - 20453052; 6546951 AB - From the mid-1940s through the 1980s, large volumes of waste water were discharged at the Hanford Site in southeastern Washington State, causing a large-scale rise (>20 m) in the water table. When waste water discharges ceased in 1988, ground water mounds began to dissipate. This caused a large number of wells to go dry and has made it difficult to monitor contaminant plume migration. To identify monitoring wells that will need replacement, a methodology has been developed using a first-order uncertainty analysis with UCODE, a nonlinear parameter estimation code. Using a three-dimensional, finite-element ground water flow code, key parameters were identified by calibrating to historical hydraulic head data. Results from the calibration period were then used to check model predictions by comparing monitoring wells' wet/dry status with field data. This status was analyzed using a methodology that incorporated the 0.3 cumulative probability derived from the confidence and prediction intervals. For comparison, a nonphysically based trend model was also used as a predictor of wells' wet/dry status. Although the numerical model outperformed the trend model, for both models, the central value of the intervals was a better predictor of a wet well status. The prediction interval, however, was more successful at identifying dry wells. Predictions made through the year 2048 indicated that 46% of the wells in the monitoring well network are likely to go dry in areas near the river and where the ground water mound is dissipating. JF - Ground Water AU - Freedman, Vicky L AU - Waichler, Scott R AU - Cole, Charles R AU - Vermeul, Vince R AU - Bergeron, Marcel P AD - Pacific Northwest National Laboratory, K9-36, P.O. Box 999, Richland, WA 99352, vicky.freedman@pnl.gov Y1 - 2005/11// PY - 2005 DA - Nov 2005 SP - 916 EP - 925 PB - Blackwell Publishing Ltd., 9600 Garsington Road Oxford OX4 2DQ UK, [URL:http://www.blackwellpublishing.com] VL - 43 IS - 6 SN - 0017-467X, 0017-467X KW - Water Resources Abstracts; Aqualine Abstracts KW - Prediction KW - Hydraulics KW - Migration KW - Geomorphology KW - Calibrations KW - Pollutants KW - Groundwater Data KW - Hydrologic Data KW - Plumes KW - Rivers KW - Dry Wells KW - Water Table KW - Drainage Patterns KW - USA, Washington, Hanford Site KW - Model Studies KW - Wells KW - Wastewater Disposal KW - Monitoring KW - Groundwater Movement KW - Wastewater KW - SW 3010:Identification of pollutants KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20453052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Identifying+the+Potential+Loss+of+Monitoring+Wells+Using+an+Uncertainty+Analysis&rft.au=Freedman%2C+Vicky+L%3BWaichler%2C+Scott+R%3BCole%2C+Charles+R%3BVermeul%2C+Vince+R%3BBergeron%2C+Marcel+P&rft.aulast=Freedman&rft.aufirst=Vicky&rft.date=2005-11-01&rft.volume=43&rft.issue=6&rft.spage=916&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/10.1111%2Fj.1745-6584.2005.00047.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-02-01 N1 - SuppNotes - Figures, 4; tables, 3; formulas, 4; references, 23. N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Prediction; Rivers; Hydraulics; Dry Wells; Drainage Patterns; Water Table; Migration; Model Studies; Geomorphology; Pollutants; Calibrations; Wells; Wastewater Disposal; Groundwater Data; Monitoring; Plumes; Hydrologic Data; Groundwater Movement; Wastewater; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1111/j.1745-6584.2005.00047.x ER - TY - JOUR T1 - Solution structure of Archaeglobus fulgidis peptidyl-tRNA hydrolase (Pth2) provides evidence for an extensive conserved family of Pth2 enzymes in archea, bacteria, and eukaryotes AN - 20195954; 6508282 AB - The solution structure of protein AF2095 from the thermophilic archaea Archaeglobus fulgidis, a 123-residue (13.6-kDa) protein, has been determined by NMR methods. The structure of AF2095 is comprised of four alpha -helices and a mixed beta -sheet consisting of four parallel and anti-parallel beta -strands, where the alpha -helices sandwich the beta -sheet. Sequence and structural comparison of AF2095 with proteins from Homo sapiens, Methanocaldococcus jannaschii, and Sulfolobus solfataricus reveals that AF2095 is a peptidyl-tRNA hydrolase (Pth2). This structural comparison also identifies putative catalytic residues and a tRNA interaction region for AF2095. The structure of AF2095 is also similar to the structure of protein TA0108 from archaea Thermoplasma acidophilum, which is deposited in the Protein Data Bank but not functionally annotated. The NMR structure of AF2095 has been further leveraged to obtain good-quality structural models for 55 other proteins. Although earlier studies have proposed that the Pth2 protein family is restricted to archeal and eukaryotic organisms, the similarity of the AF2095 structure to human Pth2, the conservation of key active-site residues, and the good quality of the resulting homology models demonstrate a large family of homologous Pth2 proteins that are conserved in eukaryotic, archaeal, and bacterial organisms, providing novel insights in the evolution of the Pth and Pth2 enzyme families. JF - Protein Science AU - Powers, Robert AU - Mirkovic, Nebojsa AU - Goldsmith-Fischman, Sharon AU - Acton, Thomas B AU - Chiang, Yiwen AU - Huang, Yuanpeng J AU - Ma, Lichung AU - Rajan, P K AU - Cort, John R AU - Kennedy, Michael A AU - Liu, Jinfeng AU - Rost, Burkhard AU - Honig, Barry AU - Murray, Diana AU - Montelione, Gaetano T AD - Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA. Department of Microbiology and Immunology, Institute for Computational Biomedicine, and Northeast Structural Genomics Consortium, Weill Medical College of Cornell University, New York, New York 10021, USA. Department of Biochemistry and Molecular Biophysics, and Northeast Structural Genomics Consortium, and Howard Hughes Medical Institute, Columbia University, New York, New York 10032, USA. Center for Advanced Biotechnology and Medicine, Department of Molecular Biology and Biochemistry, and Northeast Structural Genomics Consortium, Rutgers University, Piscataway, New Jersey 08854, USA. Biological Sciences Division, and Northeast Structural Genomics Consortium, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Department of Biochemistry, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, Piscataway, New Jersey 08854, USA Y1 - 2005/11// PY - 2005 DA - Nov 2005 SP - 2849 EP - 2861 PB - Cold Spring Harbor Laboratory Press, [mailto:cshpress@cshl.org], [URL:http://www.cshl.org/] VL - 14 IS - 11 SN - 0961-8368, 0961-8368 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - Archaea KW - tRNA KW - Thermoplasma acidophilum KW - Thermophilic bacteria KW - peptidyl-tRNA hydrolase KW - protein families KW - Enzymes KW - Models KW - Eukaryotes KW - Data banks KW - Protein structure KW - Sulfolobus solfataricus KW - Homology KW - Conservation KW - Thermophilic archaea KW - N.M.R. KW - Methanocaldococcus jannaschii KW - Evolution KW - J 02726:RNA and ribosomes KW - N 14075:tRNA, tmRNA, and protein biosynthesis KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20195954?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Protein+Science&rft.atitle=Solution+structure+of+Archaeglobus+fulgidis+peptidyl-tRNA+hydrolase+%28Pth2%29+provides+evidence+for+an+extensive+conserved+family+of+Pth2+enzymes+in+archea%2C+bacteria%2C+and+eukaryotes&rft.au=Powers%2C+Robert%3BMirkovic%2C+Nebojsa%3BGoldsmith-Fischman%2C+Sharon%3BActon%2C+Thomas+B%3BChiang%2C+Yiwen%3BHuang%2C+Yuanpeng+J%3BMa%2C+Lichung%3BRajan%2C+P+K%3BCort%2C+John+R%3BKennedy%2C+Michael+A%3BLiu%2C+Jinfeng%3BRost%2C+Burkhard%3BHonig%2C+Barry%3BMurray%2C+Diana%3BMontelione%2C+Gaetano+T&rft.aulast=Powers&rft.aufirst=Robert&rft.date=2005-11-01&rft.volume=14&rft.issue=11&rft.spage=2849&rft.isbn=&rft.btitle=&rft.title=Protein+Science&rft.issn=09618368&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-07-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - tRNA; peptidyl-tRNA hydrolase; Thermophilic bacteria; Enzymes; protein families; Models; Protein structure; Data banks; Eukaryotes; Homology; Conservation; N.M.R.; Thermophilic archaea; Evolution; Sulfolobus solfataricus; Archaea; Thermoplasma acidophilum; Methanocaldococcus jannaschii ER - TY - JOUR T1 - Differentiation of Spores of Bacillus subtilis Grown in Different Media by Elemental Characterization Using Time-of-Flight Secondary Ion Mass Spectrometry AN - 19846205; 7140509 AB - We demonstrate the use of time-of-flight secondary ion mass spectrometry (TOF-SIMS) in a forensics application to distinguish Bacillus subtilis spores grown in various media based on the elemental signatures of the spores. Triplicate cultures grown in each of four different media were analyzed to obtain TOF-SIMS signatures comprised of 16 elemental intensities. Analysis of variance was unable to distinguish growth medium types based on super(40)Ca-normalized signatures of any single normalized element. Principal component analysis proved successful in separating the spores into groups consistent with the media in which they were prepared. Confusion matrices constructed using nearest-neighbor classification of the PCA scores confirmed the predictive utility of TOF-SIMS elemental signatures in identifying sporulation medium. Theoretical calculations based on the number and density of spores in an analysis area indicate an analytical sample size of about 1 ng, making this technique an attractive method for bioforensics applications. JF - Applied and Environmental Microbiology AU - Cliff, John B AU - Jarman, Kristin H AU - Valentine, Nancy B AU - Golledge, Steven L AU - Gaspar, Daniel J AU - Wunschel, David S AU - Wahl, Karen L AD - Pacific Northwest National Laboratory, P.O. Box 999, Battelle Blvd., Richland, Washington 99352. University of Oregon, 1252 University of Oregon, Eugene, Oregon 97403 Y1 - 2005/11// PY - 2005 DA - Nov 2005 SP - 6524 EP - 6530 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 71 IS - 11 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Differentiation KW - Bacillus subtilis KW - Classification KW - Principal components analysis KW - Sporulation KW - Forensic science KW - Spores KW - Mass spectroscopy KW - Nearest-neighbor KW - J 02320:Cell Biology KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19846205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Differentiation+of+Spores+of+Bacillus+subtilis+Grown+in+Different+Media+by+Elemental+Characterization+Using+Time-of-Flight+Secondary+Ion+Mass+Spectrometry&rft.au=Cliff%2C+John+B%3BJarman%2C+Kristin+H%3BValentine%2C+Nancy+B%3BGolledge%2C+Steven+L%3BGaspar%2C+Daniel+J%3BWunschel%2C+David+S%3BWahl%2C+Karen+L&rft.aulast=Cliff&rft.aufirst=John&rft.date=2005-11-01&rft.volume=71&rft.issue=11&rft.spage=6524&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Differentiation; Classification; Principal components analysis; Forensic science; Sporulation; Spores; Mass spectroscopy; Nearest-neighbor; Bacillus subtilis ER - TY - JOUR T1 - A Variable-Energy Electron Microbeam: A Unique Modality for Targeted Low-LET Radiation AN - 19620353; 8693451 AB - Sowa, M. B., Murphy, M. K., Miller, J. H., McDonald, J. C., Strom, D. J. and Kimmel, G. A. A Variable-Energy Electron Microbeam: A Unique Modality for Targeted Low-LET Radiation. Radiat. Res. 164, 695-700 (2005). We have designed and constructed a low-cost, variable-energy low-LET electron microbeam that uses energetic electrons to mimic radiation damage produced by gamma and X rays. The microbeam can access lower regions of the LET spectrum, similar to conventional X-ray or 60Co gamma -ray sources. The device has two operating modes, as a conventional microbeam targeting single cells or subpopulations of cells or as a pseudo broad-beam source allowing for direct comparison with conventional sources. By varying the incident electron energy, the target cells can be selectively exposed to different parts of the energetic electron tracks, including the track ends. JF - Radiation Research AU - Sowa, Marianne B AU - Murphy, Mark K AU - Miller, John H AU - McDonald, Joseph C AU - Strom, Daniel J AU - Kimmel, Gregory A AD - Pacific Northwest National Laboratory, Richland, Washington 99352; , Marianne.sowa@pnl.gov Y1 - 2005/11// PY - 2005 DA - Nov 2005 SP - 695 EP - 700 PB - Allen Press, Inc., 810 East Tenth St. VL - 164 IS - 5 SN - 0033-7587, 0033-7587 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Toxicology Abstracts KW - Ionizing radiation KW - Energy KW - gamma Radiation KW - X 24390:Radioactive Materials KW - A 01490:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19620353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Research&rft.atitle=A+Variable-Energy+Electron+Microbeam%3A+A+Unique+Modality+for+Targeted+Low-LET+Radiation&rft.au=Sowa%2C+Marianne+B%3BMurphy%2C+Mark+K%3BMiller%2C+John+H%3BMcDonald%2C+Joseph+C%3BStrom%2C+Daniel+J%3BKimmel%2C+Gregory+A&rft.aulast=Sowa&rft.aufirst=Marianne&rft.date=2005-11-01&rft.volume=164&rft.issue=5&rft.spage=695&rft.isbn=&rft.btitle=&rft.title=Radiation+Research&rft.issn=00337587&rft_id=info:doi/10.1667%2FRR3463.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Energy; Ionizing radiation; gamma Radiation DO - http://dx.doi.org/10.1667/RR3463.1 ER - TY - JOUR T1 - Directed evolution for the development of conformation-specific affinity reagents using yeast display AN - 17394668; 6509480 AB - Yeast display is a powerful tool for increasing the affinity and thermal stability of scFv antibodies through directed evolution. Mammalian calmodulin (CaM) is a highly conserved signaling protein that undergoes structural changes upon Ca super(2+) binding. In an attempt to generate conformation-specific antibodies for proteomic applications, a selection against CaM was undertaken. Flow cytometry-based screening strategies to isolate easily scFv recognizing CaM in either the Ca super(2+)-bound (Ca super(2+)-CaM) or Ca super(2+)-free (apo-CaM) states are presented. Both full-length scFv and single-domain VH only clones were isolated. One scFv clone having very high affinity (K sub(d) = 0.8 nM) and specificity (>1000-fold) for Ca super(2+)-CaM was obtained from de novo selections. Subsequent directed evolution allowed the development of antibodies with higher affinity (K sub(d) = 1 nM) and specificity (>300-fold) for apo-CaM from a parental single-domain clone with both a modest affinity and specificity for that particular isoform. CaM-binding activity was unexpectedly lost upon conversion of both conformation-specific clones into soluble fragments. However, these results demonstrate that conformation-specific antibodies can be quickly and easily isolated by directed evolution using the yeast display platform. JF - Protein Engineering Design and Selection AU - Weaver-Feldhaus, Jane M AU - Miller, Keith D AU - Feldhaus, Michael J AU - Siegel, Robert W AD - Pacific Northwest National Laboratory, Richland, WA 99352 and Merrimack Pharmaceuticals, 101 Binney Street, Cambridge, MA 02142, USA Y1 - 2005/11// PY - 2005 DA - Nov 2005 SP - 527 EP - 536 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 18 IS - 11 SN - 1741-0126, 1741-0126 KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Antibodies KW - Calcium KW - Protein engineering KW - directed evolution KW - Calmodulin KW - Thermal stability KW - proteomics KW - Calcium-binding protein KW - Fv KW - Signal transduction KW - W3 33375:Antibodies KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17394668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Protein+Engineering+Design+and+Selection&rft.atitle=Directed+evolution+for+the+development+of+conformation-specific+affinity+reagents+using+yeast+display&rft.au=Weaver-Feldhaus%2C+Jane+M%3BMiller%2C+Keith+D%3BFeldhaus%2C+Michael+J%3BSiegel%2C+Robert+W&rft.aulast=Weaver-Feldhaus&rft.aufirst=Jane&rft.date=2005-11-01&rft.volume=18&rft.issue=11&rft.spage=527&rft.isbn=&rft.btitle=&rft.title=Protein+Engineering+Design+and+Selection&rft.issn=17410126&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-01-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fv; directed evolution; Antibodies; Protein engineering; Calmodulin; Calcium; Signal transduction; proteomics; Calcium-binding protein; Thermal stability ER - TY - CPAPER T1 - Field-Scale Reactive Transport Simulations of Multiple Terminal Electron Accepting Processes T2 - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AN - 40127459; 4014049 JF - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AU - Fang, Yilin AU - Scheibe, Timothy D AU - Roden, Eric E AU - Brooks, Scott C Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - Simulation KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40127459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.atitle=Field-Scale+Reactive+Transport+Simulations+of+Multiple+Terminal+Electron+Accepting+Processes&rft.au=Fang%2C+Yilin%3BScheibe%2C+Timothy+D%3BRoden%2C+Eric+E%3BBrooks%2C+Scott+C&rft.aulast=Fang&rft.aufirst=Yilin&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/meetings/2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Groundwater and the Hyporheic Zone of the Columbia River, Hanford Site, Washington T2 - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AN - 40124408; 4013437 JF - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AU - Peterson, Robert E AU - Patton, Gregory W AU - Waichler, Scott R Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - USA, Washington KW - USA, Columbia R. KW - USA, Washington, Hanford Site KW - Ground water KW - Rivers KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40124408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.atitle=Groundwater+and+the+Hyporheic+Zone+of+the+Columbia+River%2C+Hanford+Site%2C+Washington&rft.au=Peterson%2C+Robert+E%3BPatton%2C+Gregory+W%3BWaichler%2C+Scott+R&rft.aulast=Peterson&rft.aufirst=Robert&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/meetings/2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - As sessing Groundwater Vulnerability Using a Dilution Factor Approach T2 - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AN - 40110371; 4013413 JF - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AU - Zhang, Z Fred AU - Freedman, Vicky L AU - Connelly, Michael Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - Ground water KW - Vulnerability KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40110371?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.atitle=As+sessing+Groundwater+Vulnerability+Using+a+Dilution+Factor+Approach&rft.au=Zhang%2C+Z+Fred%3BFreedman%2C+Vicky+L%3BConnelly%2C+Michael&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/meetings/2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pore-Scale Modeling of Reactive Transport and Mineral Precipitation in Porous and Fractured Media T2 - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AN - 40106808; 4014537 JF - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AU - Tartakovsky, A M AU - Scheibe, T D AU - Meakin, Paul Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - Precipitation KW - Fractures KW - Minerals KW - Media (transport) KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40106808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.atitle=Pore-Scale+Modeling+of+Reactive+Transport+and+Mineral+Precipitation+in+Porous+and+Fractured+Media&rft.au=Tartakovsky%2C+A+M%3BScheibe%2C+T+D%3BMeakin%2C+Paul&rft.aulast=Tartakovsky&rft.aufirst=A&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/meetings/2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Using a Scientist/Teacher Partnership to Enhance Middle School Curriculum and Student Learning T2 - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AN - 40092872; 4015867 JF - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AU - Wurstner, Signe K AU - Herr, Cheryl AU - Andrews, Gregg L AU - Feaster, Kathy A AU - Estes, Jeffrey C AU - Willcuts, Peggy M AU - Ennor, Susan K Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - Education KW - Schools KW - Learning KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40092872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.atitle=Using+a+Scientist%2FTeacher+Partnership+to+Enhance+Middle+School+Curriculum+and+Student+Learning&rft.au=Wurstner%2C+Signe+K%3BHerr%2C+Cheryl%3BAndrews%2C+Gregg+L%3BFeaster%2C+Kathy+A%3BEstes%2C+Jeffrey+C%3BWillcuts%2C+Peggy+M%3BEnnor%2C+Susan+K&rft.aulast=Wurstner&rft.aufirst=Signe&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/meetings/2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Tectonic Evolution of the Northern Columbia River Flood-Basalt Province T2 - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AN - 40049462; 4013753 JF - 2005 Annual Meeting and Exposition of the Geological Society of America (SLC 2005) AU - Reidel, Stephen P AU - Bush, John AU - Garwood, Dean AU - Kauffman, John AU - Martin, Bart S Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - USA, Columbia R. KW - Rivers KW - Evolution KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40049462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.atitle=The+Tectonic+Evolution+of+the+Northern+Columbia+River+Flood-Basalt+Province&rft.au=Reidel%2C+Stephen+P%3BBush%2C+John%3BGarwood%2C+Dean%3BKauffman%2C+John%3BMartin%2C+Bart+S&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Annual+Meeting+and+Exposition+of+the+Geological+Society+of+America+%28SLC+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/meetings/2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Climate-Related Factors of Temperature, Sea Level, and Circulation Affect Eelgrass in the Pacific Northwest T2 - 2005 Conference of the Estuarine Research Federation (ERF 2005) AN - 39824662; 4070499 JF - 2005 Conference of the Estuarine Research Federation (ERF 2005) AU - Thom, R M AU - Borde, A B AU - Southard, J A AU - Sargeant, S L AU - Williams, G D AU - O'Rourke, L K AU - Hibler, L F Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - USA, Pacific Northwest KW - Temperature KW - Sea level KW - Climate KW - Sea grass KW - Ocean-atmosphere system KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39824662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Conference+of+the+Estuarine+Research+Federation+%28ERF+2005%29&rft.atitle=Climate-Related+Factors+of+Temperature%2C+Sea+Level%2C+and+Circulation+Affect+Eelgrass+in+the+Pacific+Northwest&rft.au=Thom%2C+R+M%3BBorde%2C+A+B%3BSouthard%2C+J+A%3BSargeant%2C+S+L%3BWilliams%2C+G+D%3BO%27Rourke%2C+L+K%3BHibler%2C+L+F&rft.aulast=Thom&rft.aufirst=R&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Conference+of+the+Estuarine+Research+Federation+%28ERF+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://erf.org/erf2005/abstracts/sessions00.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Developing a Strategic, Science-Based, Restoration Prioritization Process for the Columbia River Estuary T2 - 2005 Conference of the Estuarine Research Federation (ERF 2005) AN - 39820603; 4070458 JF - 2005 Conference of the Estuarine Research Federation (ERF 2005) AU - Williams, G D AU - Thom, R M AU - Evans, N R AU - McEwen, S Y1 - 2005/10/16/ PY - 2005 DA - 2005 Oct 16 KW - USA, Columbia Estuary KW - Estuaries KW - Rivers KW - Restoration KW - U 1200:Aquatic Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39820603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+Conference+of+the+Estuarine+Research+Federation+%28ERF+2005%29&rft.atitle=Developing+a+Strategic%2C+Science-Based%2C+Restoration+Prioritization+Process+for+the+Columbia+River+Estuary&rft.au=Williams%2C+G+D%3BThom%2C+R+M%3BEvans%2C+N+R%3BMcEwen%2C+S&rft.aulast=Williams&rft.aufirst=G&rft.date=2005-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+Conference+of+the+Estuarine+Research+Federation+%28ERF+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://erf.org/erf2005/abstracts/sessions00.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Influence of calcite and dissolved calcium on uranium (VI) sorption to a Hanford subsurface sediment AN - 51520626; 2006-089623 JF - Environmental Science & Technology, ES & T AU - Dong, Wenming AU - Ball, William P AU - Liu, Chongxuan AU - Wang, Zheming AU - Stone, Alan T AU - Bai, Jing AU - Zachara, John M Y1 - 2005/10/15/ PY - 2005 DA - 2005 Oct 15 SP - 7949 EP - 7955 PB - American Chemical Society, Washington, DC VL - 39 IS - 20 SN - 0013-936X, 0013-936X KW - United States KW - calcium KW - sorption KW - isotopes KW - aqueous solutions KW - remediation KW - radioactive waste KW - ground water KW - radioactive isotopes KW - mineral composition KW - sediments KW - spectra KW - chemical composition KW - geochemistry KW - pH KW - soils KW - alkaline earth metals KW - Washington KW - pollutants KW - grain size KW - solutes KW - pollution KW - Hanford Site KW - electrolytes KW - adsorption KW - calcite KW - metals KW - uranium KW - waste disposal KW - carbonates KW - actinides KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51520626?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Influence+of+calcite+and+dissolved+calcium+on+uranium+%28VI%29+sorption+to+a+Hanford+subsurface+sediment&rft.au=Dong%2C+Wenming%3BBall%2C+William+P%3BLiu%2C+Chongxuan%3BWang%2C+Zheming%3BStone%2C+Alan+T%3BBai%2C+Jing%3BZachara%2C+John+M&rft.aulast=Dong&rft.aufirst=Wenming&rft.date=2005-10-15&rft.volume=39&rft.issue=20&rft.spage=7949&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes0505088 L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-14 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; adsorption; alkaline earth metals; aqueous solutions; calcite; calcium; carbonates; chemical composition; chemical fractionation; electrolytes; geochemistry; grain size; ground water; Hanford Site; isotopes; metals; mineral composition; pH; pollutants; pollution; radioactive isotopes; radioactive waste; remediation; sediments; soils; solutes; sorption; spectra; United States; uranium; Washington; waste disposal DO - http://dx.doi.org/10.1021/es0505088 ER - TY - JOUR T1 - Mode of action: oxalate crystal-induced renal tubule degeneration and glycolic acid-induced dysmorphogenesis--renal and developmental effects of ethylene glycol. AN - 69070460; 16417036 AB - Ethylene glycol can cause both renal and developmental toxicity, with metabolism playing a key role in the mode of action (MOA) for each form of toxicity. Renal toxicity is ascribed to the terminal metabolite oxalic acid, which precipitates in the kidney in the form of calcium oxalate crystals and is believed to cause physical damage to the renal tubules. The human relevance of the renal toxicity of ethylene glycol is indicated by the similarity between animals and humans of metabolic pathways, the observation of renal oxalate crystals in toxicity studies in experimental animals and human poisonings, and cases of human kidney and bladder stones related to dietary oxalates and oxalate precursors. High-dose gavage exposures to ethylene glycol also cause axial skeletal defects in rodents (but not rabbits), with the intermediary metabolite, glycolic acid, identified as the causative agent. However, the mechanism by which glycolic acid perturbs development has not been investigated sufficiently to develop a plausible hypothesis of mode of action, nor have any cases of ethylene glycol-induced developmental effects been reported in humans. Given this, and the variations in sensitivity between animal species in response, the relevance to humans of ethylene glycol-induced developmental toxicity in animals is unknown at this time. JF - Critical reviews in toxicology AU - Corley, Richard A AU - Meek, M E AU - Carney, Edward W AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. rick.corley@pnl.gov PY - 2005 SP - 691 EP - 702 VL - 35 IS - 8-9 SN - 1040-8444, 1040-8444 KW - Glycolates KW - 0 KW - Oxalates KW - Teratogens KW - glycolic acid KW - 0WT12SX38S KW - Ethylene Glycol KW - FC72KVT52F KW - Index Medicus KW - Crystallization KW - Animals KW - Humans KW - Abnormalities, Drug-Induced -- pathology KW - Kidney Diseases -- pathology KW - Kidney Tubules -- pathology KW - Oxalates -- toxicity KW - Ethylene Glycol -- toxicity KW - Glycolates -- toxicity KW - Kidney Tubules -- abnormalities KW - Growth -- drug effects KW - Kidney Diseases -- chemically induced UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69070460?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Critical+reviews+in+toxicology&rft.atitle=Mode+of+action%3A+oxalate+crystal-induced+renal+tubule+degeneration+and+glycolic+acid-induced+dysmorphogenesis--renal+and+developmental+effects+of+ethylene+glycol.&rft.au=Corley%2C+Richard+A%3BMeek%2C+M+E%3BCarney%2C+Edward+W&rft.aulast=Corley&rft.aufirst=Richard&rft.date=2005-10-01&rft.volume=35&rft.issue=8-9&rft.spage=691&rft.isbn=&rft.btitle=&rft.title=Critical+reviews+in+toxicology&rft.issn=10408444&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-02-08 N1 - Date created - 2006-01-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Simulation of water balance and forest treatment effects at the H. J. Andrews Experimental Forest AN - 51656697; 2006-001506 AB - The distributed hydrology soil-vegetation model (DHSVM) was applied to the small watersheds WS1, 2, 3 in H. J. Andrews Experimental Forest, Oregon, and tested for skill in simulating observed forest treatment effects on streamflow. These watersheds, located in the rain-snow transition zone, underwent road and clearcut treatments during 1959-66 and subsequent natural regeneration. DHSVM was applied with 10 m and 1 h resolution to 1958-98, most of the period of record. Water balance for old-growth WS2 indicated that evapotranspiration and streamflow were unlikely to be the only loss terms, and groundwater recharge was included to account for about 12% of precipitation; this term was assumed zero in previous studies. Overall efficiency in simulating hourly streamflow exceeded 0.7, and mean annual error was less than 10%. Model skill decreased at the margins, with overprediction of low flows and underprediction of high flows. However, statistical analyses of simulated and observed peakflows yielded similar characterizations of treatment effects. Primary simulation weaknesses were snowpack accumulation, snowmelt under rain-on-snow conditions, and production of quickflow. This was the first test of DHSVM against observations of both control and treated watersheds in a classic paired-basin study involving a long time period of forest regrowth and hydrologic recovery. JF - Hydrological Processes AU - Waichler, Scott R AU - Wemple, Beverley C AU - Wigmosta, Mark S Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 3177 EP - 3199 PB - John Wiley & Sons, New York, NY VL - 19 IS - 16 SN - 0885-6087, 0885-6087 KW - United States KW - snow water equivalent KW - watersheds KW - calibration KW - atmospheric precipitation KW - vegetation KW - simulation KW - H. J. Andrews Experimental Forest KW - ground water KW - Oregon KW - Lane County Oregon KW - snow KW - soils KW - hydrology KW - forests KW - surface water KW - statistical analysis KW - rates KW - water balance KW - evapotranspiration KW - models KW - Cascade Range KW - recharge KW - streamflow KW - runoff KW - regression analysis KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51656697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=Simulation+of+water+balance+and+forest+treatment+effects+at+the+H.+J.+Andrews+Experimental+Forest&rft.au=Waichler%2C+Scott+R%3BWemple%2C+Beverley+C%3BWigmosta%2C+Mark+S&rft.aulast=Waichler&rft.aufirst=Scott&rft.date=2005-10-01&rft.volume=19&rft.issue=16&rft.spage=3177&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=08856087&rft_id=info:doi/10.1002%2Fhyp.5841 L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/4125 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2006-01-01 N1 - Number of references - 36 N1 - PubXState - NY N1 - Document feature - illus. incl. 7 tables, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; calibration; Cascade Range; evapotranspiration; forests; ground water; H. J. Andrews Experimental Forest; hydrology; Lane County Oregon; models; Oregon; rates; recharge; regression analysis; runoff; simulation; snow; snow water equivalent; soils; statistical analysis; streamflow; surface water; United States; vegetation; water balance; watersheds DO - http://dx.doi.org/10.1002/hyp.5841 ER - TY - JOUR T1 - Putative mineral-specific proteins synthesized by a metal reducing bacterium AN - 51611360; 2006-028085 JF - American Journal of Science AU - Lower, Brian H AU - Hochella, Michael F, Jr AU - Lower, Steven K A2 - Luettge, Andreas A2 - Rye, Rob A2 - Conrad, Pamela Gales Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 687 EP - 710 PB - Yale University, Kline Geology Laboratory, New Haven, CT VL - 305 IS - 6-8 SN - 0002-9599, 0002-9599 KW - iron oxides KW - goethite KW - polysaccharides KW - electrophoresis KW - diaspore KW - mass spectra KW - Shewanella KW - iron KW - laboratory studies KW - ferric iron KW - Shewanella oneidensis KW - oxides KW - carbohydrates KW - spectra KW - reduction KW - synthesis KW - geochemistry KW - experimental studies KW - biochemistry KW - iron hydroxides KW - two-dimensional models KW - hydroxides KW - organic compounds KW - metals KW - bacteria KW - theoretical models KW - peptides KW - anaerobic environment KW - proteins KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51611360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Science&rft.atitle=Putative+mineral-specific+proteins+synthesized+by+a+metal+reducing+bacterium&rft.au=Lower%2C+Brian+H%3BHochella%2C+Michael+F%2C+Jr%3BLower%2C+Steven+K&rft.aulast=Lower&rft.aufirst=Brian&rft.date=2005-10-01&rft.volume=305&rft.issue=6-8&rft.spage=687&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Science&rft.issn=00029599&rft_id=info:doi/10.2475%2Fajs.305.6-8.687 L2 - http://www.ajsonline.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 87 N1 - PubXState - CT N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-15 N1 - CODEN - AJSCAP N1 - SubjectsTermNotLitGenreText - anaerobic environment; bacteria; biochemistry; carbohydrates; diaspore; electrophoresis; experimental studies; ferric iron; geochemistry; goethite; hydroxides; iron; iron hydroxides; iron oxides; laboratory studies; mass spectra; metals; organic compounds; oxides; peptides; polysaccharides; proteins; reduction; Shewanella; Shewanella oneidensis; spectra; synthesis; theoretical models; two-dimensional models DO - http://dx.doi.org/10.2475/ajs.305.6-8.687 ER - TY - JOUR T1 - 3-D geostatistical lithofacies mapping of ice-floods deposits in a portion of the Hanford nuclear site AN - 51595134; 2006-039184 AB - The complexity of large-scale Pleistocene catastrophic floods deposits of the Hanford Formation in the Pasco Basin presents challenges for constructing reliable flow and transport models for predicting contaminant migration. Previous hydrogeologic models of the Hanford Formation in the 200 West Area of the Hanford Site relied on traditional sequence stratigraphy deduced from boreholes and outcrops to produce a "layer cake" representation of hydrogeologic properties. Those models are limited in that heterogeneity and uncertainty within each layer are not adequately addressed. Indicator geostatistics provide a tool for stochastic simulation of the heterogeneity of the sediments within each stratigraphic sequence and a quantification of the uncertainty in the distribution of lithofacies. This study classified the glacial flood deposits into five lithofacies: silty sand, fine sand, coarse sand, gravelly sand, and sandy gravel using data retrieved from the Hanford Borehole Geologic Information System. Borehole data from the study area provide data on the vertical heterogeneity of the subsurface sediments but only limited information on the lateral heterogeneity. Excavation sites near the study area provided a qualitative assessment of the lateral heterogeneity of the lithofacies. Indicator variogram models were developed to characterize the spatial continuity of each lithofacies. Conditional indicator simulation techniques were applied to produce realizations of the distribution of lithofacies. Analysis of the realizations allowed for the quantitative assessment of uncertainty in the spatial distribution of the lithofacies. The realizations can be used as input for flow and transport modeling choosing the extreme lithofacies distributions and the modal distribution to capture the range of behavior in flow and transport predictions. Hydraulic conductivities were assigned to each lithofacies based on frequency distributions of measured hydraulic conductivity data from each lithofacies. The resulting 3-D geostatistical models of hydraulic conductivity provide an improved understanding of the heterogeneity of Hanford formation sediments and also provide geologically plausible constraints on flow and transport modeling of the study area. JF - Abstracts with Programs - Geological Society of America AU - Bush, Debbie A AU - Murray, Christopher AU - Last, George V AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 148 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - mapping KW - simulation KW - qualitative analysis KW - Cenozoic KW - geographic information systems KW - transport KW - stochastic processes KW - Pasco Basin KW - paleofloods KW - heterogeneity KW - sequence stratigraphy KW - Hanford Formation KW - Washington KW - Quaternary KW - three-dimensional models KW - statistical analysis KW - Hanford Site KW - geostatistics KW - properties KW - models KW - lithofacies KW - boreholes KW - Pleistocene KW - information systems KW - hydraulic conductivity KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51595134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=3-D+geostatistical+lithofacies+mapping+of+ice-floods+deposits+in+a+portion+of+the+Hanford+nuclear+site&rft.au=Bush%2C+Debbie+A%3BMurray%2C+Christopher%3BLast%2C+George+V%3BAnonymous&rft.aulast=Bush&rft.aufirst=Debbie&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=148&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - boreholes; Cenozoic; geographic information systems; geostatistics; Hanford Formation; Hanford Site; heterogeneity; hydraulic conductivity; information systems; lithofacies; mapping; models; paleofloods; Pasco Basin; Pleistocene; properties; qualitative analysis; Quaternary; sequence stratigraphy; simulation; statistical analysis; stochastic processes; three-dimensional models; transport; United States; Washington ER - TY - JOUR T1 - The tectonic evolution of the northern Columbia River flood-basalt province AN - 51594425; 2006-036156 AB - Although the Columbia River Flood-Basalt Province (CRB) covers more than 200,000 km (super 2) of the Pacific Northwest, greater than 75% of the basalts erupted in the northern part of the province (WA, northern OR and ID). The province consists of three tectonic elements: the Palouse Slope (PS), underlain by stable cratonic rocks; the Yakima fold belt (YFB), underlain by thick early Cenozoic sediments deposited on accreted terranes; and the Blue Mountains uplift which is cored by accreted terranes. Tectonism began prior to the eruption of the Grande Ronde Basalt, the main phase of CRB, and continued after the eruptions ceased. Subsidence dominated the northern province with no evidence of any initial uplift phase prior to the eruptions, as would be expected from a plume head advancing from the south. Subsidence is characterized by a series of basins that formed along the suture between the craton and accreted terranes during the basalt eruptions. The YFB area began subsiding in late Paleocene or earliest Eocene. Subsidence continued into the Miocene as 4-5 km of basalt accumulated contemporaneous with development of the Yakima folds. Only 1-2 km of basalt accumulated on the adjacent stable craton; however, the simultaneous development of a pervasive set of NW-SE low amplitude folds influenced the distribution of lava flows. The rates of fold growth, basin subsidence, and basalt eruptions are closely correlated in the YFB, as well as the amount of clock-wise rotation of the paleomagnetic poles recorded in the basalt. Although the large volumes of the eruptive pulses (as much as 5,000 to 10,000 km (super 3) ) suggest a plume, the location of the main CRB eruptive activity over 400 km north of the Yellowstone plume track, as well as the region's tectonic history, suggests that other factors like plate convergence had a significant influence. JF - Abstracts with Programs - Geological Society of America AU - Reidel, Stephen P AU - Bush, John AU - Garwood, Dean AU - Kauffman, John AU - Martin, Bart S AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 126 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - volcanic rocks KW - igneous rocks KW - uplifts KW - mantle KW - subsidence KW - Cenozoic KW - Oregon KW - Western U.S. KW - folds KW - Columbia River basin KW - basalts KW - Pacific Coast KW - tectonics KW - mantle plumes KW - Idaho KW - Washington KW - accretion KW - Palouse Slope KW - Grande Ronde Basalt KW - plate convergence KW - northern Oregon KW - Miocene KW - Tertiary KW - Neogene KW - eruptions KW - Yakima fold belt KW - 16:Structural geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51594425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+tectonic+evolution+of+the+northern+Columbia+River+flood-basalt+province&rft.au=Reidel%2C+Stephen+P%3BBush%2C+John%3BGarwood%2C+Dean%3BKauffman%2C+John%3BMartin%2C+Bart+S%3BAnonymous&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=126&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - accretion; basalts; Cenozoic; Columbia River basin; eruptions; flood basalts; folds; Grande Ronde Basalt; Idaho; igneous rocks; mantle; mantle plumes; Miocene; Neogene; northern Oregon; Oregon; Pacific Coast; Palouse Slope; plate convergence; subsidence; tectonics; Tertiary; United States; uplifts; volcanic rocks; Washington; Western U.S.; Yakima fold belt ER - TY - JOUR T1 - Personal discovery of cataclysmic, ice age floods through geocaching AN - 51589847; 2006-039246 AB - The exciting game of geocaching provides a new and enjoyable way to discover our surroundings, including unique landforms left behind by repeated Ice Age floods. Giant floods from Pleistocene Glacial Lake Missoula dramatically changed the landscape along a 600-mile long swath through portions of Montana, Idaho, Washington, and Oregon. The general public has been largely unaware of these cataclysmic geologic events even though J Harlen Bretz first unraveled evidence for the floods in 1923. This lack of awareness is rapidly changing and in the last decade the floods' story and the personal drama behind their discovery have increasingly captured the public's interest and imagination. Legislation is now before the U.S. Congress to establish a first-of-its-kind Ice Age Floods National Geologic Trail. The proposed trail, under management of the National Park Service, would utilize existing public roadways and facilities to reveal the evidence for the floods along their many pathways, from Missoula to the mouth of the Columbia River. As one way to generate and expand public interest in the floods, a set of 10 geocaches located at particularly striking flood features were established on public lands within southeastern Washington. Included are a wide variety of erosional as well as depositional features that are both scenic and instructive. Detailed information on these geocache sites, revolving around the theme of the floods, is available online at www.iceagefloodsinstitute.org/geocaching.html. Together, the geocaches present the dramatic scientific evidence for the floods that allows the adventurous to experience flood features in their wild and pristine state, much the way Bretz did early in the 20th century. One of these special floods geocaches (Saddle Mountains Overlook) is Washington State's first Earthcache, located on the new Hanford Reach National Monument. Armed with a GPS unit, any adventurous individual can now experience and appreciate, firsthand, the incredible power and magnitude of these cataclysmic events that played such an important role in shaping the majestic Pacific Northwest. JF - Abstracts with Programs - Geological Society of America AU - Bjornstad, Bruce N AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 158 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Idaho KW - Global Positioning System KW - Washington KW - Quaternary KW - Columbia River KW - Saddle Mountains KW - Lake Missoula KW - landforms KW - erosion features KW - glacial features KW - Montana KW - geology KW - Cenozoic KW - Oregon KW - Pleistocene KW - Pacific Coast KW - paleofloods KW - glacial geology KW - Hanford Reach National Monument KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51589847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Personal+discovery+of+cataclysmic%2C+ice+age+floods+through+geocaching&rft.au=Bjornstad%2C+Bruce+N%3BAnonymous&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=158&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; Columbia River; erosion features; geology; glacial features; glacial geology; Global Positioning System; Hanford Reach National Monument; Idaho; Lake Missoula; landforms; Montana; Oregon; Pacific Coast; paleofloods; Pleistocene; Quaternary; Saddle Mountains; United States; Washington ER - TY - JOUR T1 - "Filling the gaps" in geoscience education standards using scientist/teacher partnerships AN - 51566020; 2006-062313 AB - The grade level expectations (state standards) in Washington State were released in January 2005. Teacher leaders were brought together through the Washington State Leadership and Assistance for Science Education Reform (LASER) program to identify gaps in the existing National Science Foundation (NSF) supported curriculum used by elementary schools across Washington State. Pacific Northwest National Laboratory (PNNL) agreed to facilitate the work necessary to fill the earth science related gaps through the US Department of Energy sponsored Laboratory Science Teacher Professional Development (LSTPD) Program. A major goal of LSTPD is to link a team of five teachers committed to excellence in teaching with outstanding scientists willing to mentor teachers and establish long-term relationships. Using a scenario-based approach, the teacher leaders were invited to participate in two weeks of intense field experience exploring the geology of the Pacific Northwest. From the edge of the crater of Mt. St. Helens to the fossil beds of John Day, these teachers deepened their geoscience content knowledge under the mentorship of the PNNL scientists. Armed with this enhanced knowledge, they were tasked with the challenge of developing curriculum enhancements to fill the previously identified geoscience gaps. A review of the existing statewide curriculum showed that the best place to tether this curricular enhancement was a rocks and minerals unit. The teachers began by researching the tradebook literature, web resources, and any other available teaching resources to avoid duplicating already existing materials. Then, the teachers worked to create a design to be used as the template for all materials developed to fill the standards gaps. Instructional materials were created and a timeline was developed for piloting these materials in the teacher leader classrooms. Student work will be gathered and examined for evidence of student learning. This information will be used to revise the curricular enhancements for use in a second set of classrooms. This process will be repeated until a final published product can be created. The right combination of teacher leaders and scientists, each bringing to the partnership their own expertise, is the key to this powerful and highly effective collaboration. JF - Abstracts with Programs - Geological Society of America AU - Willcuts, Peggy M AU - Wieda, Karen J AU - Estes, Jeffrey C AU - Goodwin, Shannon M AU - Horton, Duane G AU - Reidel, Stephen P AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 281 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - geology KW - educational resources KW - Washington KW - K-12 education KW - elementary school KW - curricula KW - education KW - teacher education KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51566020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=%22Filling+the+gaps%22+in+geoscience+education+standards+using+scientist%2Fteacher+partnerships&rft.au=Willcuts%2C+Peggy+M%3BWieda%2C+Karen+J%3BEstes%2C+Jeffrey+C%3BGoodwin%2C+Shannon+M%3BHorton%2C+Duane+G%3BReidel%2C+Stephen+P%3BAnonymous&rft.aulast=Willcuts&rft.aufirst=Peggy&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - curricula; education; educational resources; elementary school; geology; K-12 education; teacher education; United States; Washington ER - TY - JOUR T1 - Using a scientist/teacher partnership to enhance middle school curriculum and student learning AN - 51565995; 2006-062311 AB - Scientists at Pacific Northwest National Laboratory (PNNL) and a sixth-grade teacher at Pioneer Middle School in Walla Walla, Washington, partnered to develop a hands-on, inquiry-based research project related to flash floods in southeastern Washington State. This project was designed to complement "Catastrophic Events," an earth science module published by the National Science Resources Center under the auspices of the National Academies and the Smithsonian Institution. The goal of the pilot project was to create an activity that would mimic how a scientist conducts research; motivate students; be repeatable; engage all students at the appropriate cognitive and skill levels; and encourage team work. We identified a fictional research scenario in which student teams would analyze the risk of flash floods at four sites near Walla Walla using geological, hydrological, and meteorological data. The use of real-life settings and local flash flood history was an important design element that helped capture student interest. The teams were asked to rank the sites from best (lowest flash flood risk) to worst (highest flash flood risk) and recommend, in a technical report, the best site at which to build a year-round camp for students. The scenario was introduced via an invitation letter and presentation by Take-A-Hike, Inc., a fictional company "owned" by the scientists. Student teams then spent the next three weeks compiling and analyzing data. They kept scientific notebooks and provided weekly reports via email to the client (i.e., the scientists). Their final product was a technical report presented to the client and a poster presented in a community poster session held at the school. The pilot project was considered a success and was expanded to all of the sixth grade classes and three additional teachers the next year. It was clear that involving "third-party experts" (scientists) added to the reality of the scenario and heightened student interest. The partnership provided an enriched experience that enhanced student understanding of concepts within the existing curriculum, sharpened their math, science, and writing skills, and taught teamwork and critical thinking. This serves as a model for developing inquiry-based earth science projects and creating meaningful partnerships between schools and scientists. JF - Abstracts with Programs - Geological Society of America AU - Wurstner, Signe K AU - Herr, Cheryl AU - Andrews, Gregg L AU - Feaster, Kathy A AU - Estes, Jeffrey C AU - Willcuts, Peggy M AU - Ennor, Susan K AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 281 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - geology KW - K-12 education KW - Pacific Northwest National Laboratory KW - Pioneer Middle School KW - curricula KW - academic institutions KW - junior high school KW - education KW - research KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51565995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Using+a+scientist%2Fteacher+partnership+to+enhance+middle+school+curriculum+and+student+learning&rft.au=Wurstner%2C+Signe+K%3BHerr%2C+Cheryl%3BAndrews%2C+Gregg+L%3BFeaster%2C+Kathy+A%3BEstes%2C+Jeffrey+C%3BWillcuts%2C+Peggy+M%3BEnnor%2C+Susan+K%3BAnonymous&rft.aulast=Wurstner&rft.aufirst=Signe&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - academic institutions; curricula; education; geology; junior high school; K-12 education; Pacific Northwest National Laboratory; Pioneer Middle School; research ER - TY - JOUR T1 - Impact of highly basic solutions on sorption of Cs (super +) to subsurface sediments from the Hanford Site, USA AN - 51565092; 2006-059265 AB - The effect of caustic NaNO (sub 3) solutions on the sorption of (super 137) Cs to a Hanford site micaceous subsurface sediment was investigated as a function of base exposure time (up to 168 d), temperature (10 degrees C or 50 degrees C), and NaOH concentration (0.1 mol/L to 3 mol/L). At 10 degrees C and 0.1 M NaOH, the slow evolution of [Al] (sub aq) was in stark contrast to the rapid increase and subsequent loss of [Al] (sub aq) observed at 50 degrees C (regardless of base concentration). Exposure to 0.1 M NaOH at 10 degrees C for up to 168 d exhibited little if any measurable effect on sediment mineralogy, Cs (super +) sorption, or Cs (super +) selectivity; sorption was well described with a two-site ion exchange model modified to include enthalpy effects. At 50 degrees C, dissolution of phyllosilicate minerals increased with [OH]. A zeolite (tetranatrolite; Na (sub 2) Al (sub 2) Si (sub 3) O (sub 10) . 2H (sub 2) O) precipitated in 0.1 M NaOH after about 7 days, while an unnamed mineral phase (Na (sub 14) Al (sub 12) Si (sub 13) O (sub 51) . 6H (sub 2) O) precipitated after 4 and 2 days of exposure to 1 M and 3 M NaOH solutions, respectively. Short-term (16 h) Cs (super +) sorption isotherms (10 (super -9) -10 (super -2) mol/L) were measured on sediment after exposure to 0.1 M NaOH for 56, 112, and 168 days at 50 degrees C. There was a trend toward slightly lower conditional equilibrium exchange constants (Delta log (sub Na) (super Cs) K (sub c) approximately 0.25) over the entire range of surface coverage, and a slight loss of high affinity sites (15%) after 168 days of pretreatment with 0.1 M base solution. Cs (super +) sorption to sediment over longer times was also measured at 50 degrees C in the presence of NaOH (0.1 M, 1 M, and 3 M NaOH) at Cs (super +) concentrations selected to probe a range of adsorption densities. Model simulations of Cs (super +) sorption to the sediment in the presence of 0.1 M NaOH for 112 days slightly under-predicted sorption at the lower Cs (super +) adsorption densities. At the higher adsorption densities, model simulations under-predicted sorption by 57%. This under-prediction was surmised to be the result of tetranatrolite precipitation, and subsequent slow Na-->Cs exchange. At higher OH concentrations, Cs (super +) sorption in the presence of base for 112 days was unexpectedly equal to, or greater than that expected for pristine sediment. The precipitation of secondary phases, coupled with the fairly unique mica distribution and quantity across all size-fractions in the Hanford sediment, appears to mitigate the impact of base dissolution on Cs (super +) sorption. JF - Geochimica et Cosmochimica Acta AU - Ainsworth, C C AU - Zachara, J M AU - Wagnon, K AU - McKinley, S AU - Liu, C AU - Smith, S C AU - Schaef, H T AU - Gassman, P L Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 4787 EP - 4800 PB - Elsevier, New York, NY VL - 69 IS - 20 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - sorption KW - X-ray diffraction data KW - isotopes KW - waste disposal sites KW - unsaturated zone KW - aqueous solutions KW - solution KW - temperature KW - laboratory studies KW - radioactive isotopes KW - mineral composition KW - cesium KW - mica group KW - sediments KW - geochemistry KW - pH KW - high-level waste KW - experimental studies KW - Washington KW - cation exchange capacity KW - alkali metals KW - Hanford Site KW - electron microscopy data KW - sodium KW - southeastern Washington KW - Cs-137 KW - precipitation KW - metals KW - sheet silicates KW - mobilization KW - waste disposal KW - SEM data KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51565092?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Impact+of+highly+basic+solutions+on+sorption+of+Cs+%28super+%2B%29+to+subsurface+sediments+from+the+Hanford+Site%2C+USA&rft.au=Ainsworth%2C+C+C%3BZachara%2C+J+M%3BWagnon%2C+K%3BMcKinley%2C+S%3BLiu%2C+C%3BSmith%2C+S+C%3BSchaef%2C+H+T%3BGassman%2C+P+L&rft.aulast=Ainsworth&rft.aufirst=C&rft.date=2005-10-01&rft.volume=69&rft.issue=20&rft.spage=4787&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2005.06.007 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 49 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, 2 plates N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; aqueous solutions; cation exchange capacity; cesium; Cs-137; electron microscopy data; experimental studies; geochemistry; Hanford Site; high-level waste; isotopes; laboratory studies; metals; mica group; mineral composition; mobilization; pH; precipitation; radioactive isotopes; sediments; SEM data; sheet silicates; silicates; sodium; solution; sorption; southeastern Washington; temperature; United States; unsaturated zone; Washington; waste disposal; waste disposal sites; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2005.06.007 ER - TY - JOUR T1 - Pore-scale modeling of reactive transport and mineral precipitation in porous and fractured media AN - 51547442; 2006-072035 AB - A numerical model based on smoothed particle hydrodynamics (SPH) was developed and used to simulate reactive transport and mineral precipitation in porous and fractured porous media. The model was used to study effects of pore scale heterogeneity on reactive transport. Effective reaction rate coefficients and mass transfer coefficients were calculated from the pore-scale model results to illustrate pore-scale controls on bulk reaction behavior. Changes in bulk porosity, hydraulic conductivity and transport parameters resulting from mineral precipitation were also investigated. We found that the SPH, Lagrangian particle method is an effective tool for studying pore scale flow and transport. The particle nature of SPH allows complex physical processes such as diffusion, reaction and mineral precipitation to be modeled with relative ease. JF - Abstracts with Programs - Geological Society of America AU - Tartakovsky, Alexandre M AU - Scheibe, Timothy D AU - Meakin, Paul AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 320 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - fractured materials KW - diffusion KW - numerical models KW - behavior KW - rates KW - porous materials KW - properties KW - simulation KW - porosity KW - models KW - controls KW - chemical reactions KW - transport KW - precipitation KW - hydraulic conductivity KW - heterogeneity KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51547442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Pore-scale+modeling+of+reactive+transport+and+mineral+precipitation+in+porous+and+fractured+media&rft.au=Tartakovsky%2C+Alexandre+M%3BScheibe%2C+Timothy+D%3BMeakin%2C+Paul%3BAnonymous&rft.aulast=Tartakovsky&rft.aufirst=Alexandre&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=320&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - behavior; chemical reactions; controls; diffusion; fractured materials; geochemistry; heterogeneity; hydraulic conductivity; models; numerical models; porosity; porous materials; precipitation; properties; rates; simulation; transport ER - TY - JOUR T1 - Bond-valence controls on liquid water structure; an ab initio molecular dynamics study AN - 51538405; 2006-080684 AB - The structure of liquid water is the subject of continuing debate for a number of reasons, including the difficulty in creating and testing suitable force fields for classical molecular dynamics (MD) simulations, and in setting a cutoff length for defining weak O-H bonds. In both cases, classical bond valence theory may provide important constraints. First, the valence sum rule states that the valence of bonds reaching an atom must approximately cancel its atomic valence, which is equal to its formal charge. Bond valences are estimated via exponential expressions fit to thousands of bond lengths from known crystal structures, where the valence sum rule is assumed for the purpose of fitting. Although these expressions are empirically derived, they have been repeatedly shown to be quantitatively accurate for constraining possible crystal structures. If the valence sum rule also applies in liquids, this would impose an important constraint on the numerous proposed models of water structure. Second, bond-valence theorists have proposed an operational definition for bonds that implies that the cutoff length for weak H-bonds should be approximately 289 pm. Applying density functional theory as implemented in the pseudopotential plane-wave module in the NWChem program package, we performed ab initio MD simulations of a system of 32 water molecules. In addition, we performed analogous simulations of carbonic, silicic, and phosphoric acid molecules and ions in baths of 30-31 water molecules. The valence of all bonds reaching the O atoms in these model systems was assessed at each time step of the simulations and averaged. In the water simulation, the valence sum rule was very closely followed, and the average number of weak O-H bonds reaching each O atom was 2.8. In the simulations of solvated oxo-species, the valence sum rule was also closely followed. However, since the total valence of Me-O and strong O-H bonds reaching the O atoms in the oxo-species was quite varied, the average number of weak O-H bonds reaching these O atoms ranged from 1.4 to nearly 6. These results not only confirm that the valence sum rule is likely followed in liquids, but also highlight the possibility of predicting the acid-base properties of, and dielectric response around oxo-species in solution and oxide surfaces. JF - Abstracts with Programs - Geological Society of America AU - Bickmore, Barry R AU - Rosso, Kevin M AU - Brown, I David AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 382 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - water KW - carbonic acid KW - solutions KW - crystal structure KW - bonding KW - simulation KW - silicic acid KW - ions KW - models KW - controls KW - quantitative analysis KW - oxides KW - valency KW - phosphoric acid KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51538405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Bond-valence+controls+on+liquid+water+structure%3B+an+ab+initio+molecular+dynamics+study&rft.au=Bickmore%2C+Barry+R%3BRosso%2C+Kevin+M%3BBrown%2C+I+David%3BAnonymous&rft.aulast=Bickmore&rft.aufirst=Barry&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=382&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - bonding; carbonic acid; controls; crystal structure; ions; models; oxides; phosphoric acid; quantitative analysis; silicic acid; simulation; solutions; valency; water ER - TY - JOUR T1 - Implementation of biofilm permeability models for mineral reactions in saturated porous media AN - 51494472; 2007-015756 AB - An approach based on continuous biofilm models is proposed for modeling permeability changes due to mineral precipitation and dissolution in saturated porous media. In contrast to the biofilm approach, implementation of the film depositional models within a reactive transport code requires a time-dependent calculation of the mineral films in the pore space. Two different methods for this calculation are investigated. The first method assumes a direct relationship between changes in mineral radii (i.e., surface area) and changes in the pore space. In the second method, an effective change in pore radii is calculated based on the relationship between permeability and grain size. Porous media permeability is determined by coupling the film permeability models (Mualem and Childs and Collis-George) to a volumetric model that incorporates both mineral density and reactive surface area. Results from single mineral dissolution and single mineral precipitation simulations provide reasonable estimates of permeability, though they predict smaller permeability changes relative to the Kozeny and Carmen model. However, a comparison of experimental and simulated data show that the Mualem film model is the only one that can replicate the oscillations in permeability that occur as a result of simultaneous dissolution and precipitation reactions occurring within the porous media. JF - Computers & Geosciences AU - Freedman, Vicky L AU - Prasad Saripalli, K AU - Bacon, Diana H AU - Meyer, Philip D Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 968 EP - 977 PB - Elsevier, Amsterdam VL - 31 IS - 8 SN - 0098-3004, 0098-3004 KW - experimental studies KW - numerical models KW - density KW - saturated materials KW - grain size KW - porous materials KW - solution KW - simulation KW - hydrochemistry KW - porosity KW - models KW - laboratory studies KW - deposition KW - precipitation KW - biofilms KW - geochemistry KW - permeability KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51494472?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=Implementation+of+biofilm+permeability+models+for+mineral+reactions+in+saturated+porous+media&rft.au=Freedman%2C+Vicky+L%3BPrasad+Saripalli%2C+K%3BBacon%2C+Diana+H%3BMeyer%2C+Philip+D&rft.aulast=Freedman&rft.aufirst=Vicky&rft.date=2005-10-01&rft.volume=31&rft.issue=8&rft.spage=968&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2005.02.003 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2007-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - biofilms; density; deposition; experimental studies; geochemistry; grain size; hydrochemistry; laboratory studies; models; numerical models; permeability; porosity; porous materials; precipitation; saturated materials; simulation; solution DO - http://dx.doi.org/10.1016/j.cageo.2005.02.003 ER - TY - JOUR T1 - Combined cosmogenic burial dating and magnetostratigraphy of pre-LGM cataclysmic flood sediments, Pasco Basin, WA AN - 51464445; 2007-034484 AB - Previous studies have suggested that Missoula floods or similar events have debouched across the Channeled Scablands of eastern Washington not only during the Last Glacial Maximum (LGM) but also during earlier glacials since the early Pleistocene. Our work in the Pasco Basin, WA, combines cosmogenic burial dating ( (super 26) Al/ (super 10) Be) with magnetostratigraphy of sediments to establish more robust ages for these otherwise undatable deposits. Here we summarize data from two localities in the Pasco Basin, Cold Creek giant flood bar and Kiona Quarry. Both contain thick sections (30+ meters) of what are thought to be middle and early Pleistocene cataclysmic flood sediments and intercalated paleosols. Magnetostratigraphy from drill cores through the Cold Creek Bar (Pluhar et al., 2005 in press) suggests two reversed (or transitional) polarity zones separated by a normal zone. This had previously been interpreted as recording the Jaramillo normal subchron (0.99-1.07 Ma). However, eight preliminary cosmogenic burial ages on weak paleosols intercalated within Cold Creek bar suggest burial during the Brunhes normal chron (0-0.78 Ma). The burial dating therefore indicates that the polarity structure may record short-lived magnetic excursion(s) during the Brunhes. If true, this may permit more accurate geochronology of pre-LGM Missoula Flood sediments by correlation with excursions during the Brunhes. A surface exposure at Kiona Quarry, WA, also composed of cataclysmic flood sediments, yielded very different results. A pedogenically-altered gravel at this locality exhibits exponentially decreasing cosmogenic nuclide concentrations with depth, supporting its interpretation as a paleosol or paleosol remnant. Preliminary burial ages on this paleosol suggest burial during the early Pleistocene. This is consistent with the reversed polarity of the sediments directly beneath the paleosol, which indicates deposition prior to the Brunhes-Matuyama reversal at 0.78 Ma. These results emphasize that magnetostratigraphy is best combined with supplementary independent age indicators in order to determine uniquely the proper correlation with the magnetic polarity timescale. Furthermore, previous work that assigned ages based solely on paleomagnetic polarity should be reassessed in light of these new results. JF - Abstracts with Programs - Geological Society of America AU - Pluhar, Christopher J AU - Stock, Greg M AU - Bjornstad, Bruce N AU - Coe, Robert S AU - Finkel, Robert C AU - Anderson, Robert S AU - Reidel, Stephen P AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 479 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - last glacial maximum KW - Brunhes Chron KW - eastern Washington KW - magnetostratigraphy KW - cores KW - Cenozoic KW - glacial environment KW - Pasco Basin KW - paleosols KW - Matuyama Chron KW - paleofloods KW - lower Pleistocene KW - Cold Creek Bar KW - Washington KW - upper Cenozoic KW - Quaternary KW - Kiona Quarry KW - Lake Missoula KW - paleomagnetism KW - time scales KW - reversals KW - upper Quaternary KW - Pleistocene KW - Channeled Scabland KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51464445?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Combined+cosmogenic+burial+dating+and+magnetostratigraphy+of+pre-LGM+cataclysmic+flood+sediments%2C+Pasco+Basin%2C+WA&rft.au=Pluhar%2C+Christopher+J%3BStock%2C+Greg+M%3BBjornstad%2C+Bruce+N%3BCoe%2C+Robert+S%3BFinkel%2C+Robert+C%3BAnderson%2C+Robert+S%3BReidel%2C+Stephen+P%3BAnonymous&rft.aulast=Pluhar&rft.aufirst=Christopher&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=479&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Brunhes Chron; Cenozoic; Channeled Scabland; Cold Creek Bar; cores; eastern Washington; glacial environment; Kiona Quarry; Lake Missoula; last glacial maximum; lower Pleistocene; magnetostratigraphy; Matuyama Chron; paleofloods; paleomagnetism; paleosols; Pasco Basin; Pleistocene; Quaternary; reversals; time scales; United States; upper Cenozoic; upper Quaternary; Washington ER - TY - JOUR T1 - High-precision uranium isotopic studies at the Hanford Site, Washington using MC-ICPMS AN - 51464296; 2007-034476 AB - Uranium from nuclear industrial activities covers a wide range of (super 235) U/ (super 238) U and (super 236) U/ (super 238) U due to variable combinations of isotopic enrichment and use in nuclear reactors. In addition, the irradiation of (super 232) Th produces (super 233) U and thus a signature separate from variable burn-up of different U fuel types. Natural background uranium in groundwater and porewater has essentially constant (super 235) U/ (super 238) U, virtually zero (super 236) U/ (super 238) U and (super 233) U/ (super 238) U, but variable (super 234) U/ (super 238) U due to alpha recoil effects. The contrasts in isotopic composition between natural and processed uranium, as well as the wide compositional range of processed uranium, provides the means to trace contaminant uranium in the environment and delineate the sources and history of contamination. We have developed techniques of high precision measurement of uranium isotopes using an ICP source multiple collector magnetic sector mass spectrometer (MC-ICPMS) (IsoProbe, GV Instruments Ltd.). U isotopic compositions are measured simultaneously using a combination of Faraday cups (for (super 235) U and (super 238) U) and a Daly photomultiplier ion counting system (for (super 234) U, (super 236) U and (super 233) U in separate measurements). U is separated from samples prior to introduction to the MC-ICPMS via a desolvation system. A single analysis of a 20ppb U solution uses approximately 10ng of sample U. We use bracketing analyses of a natural secular equilibrium U standard to correct instrumental mass fractionation, establish Daly/Faraday gain, and account for peak-tailing on (super 236) U. This allows us to avoid the use of a (super 233) U- (super 236) U double spike for mass fractionation correction that would compromise our ability to measure (super 236) U and (super 233) U. The lower limit for (super 236) U/ (super 238) U measurement is about 2 X 10 (super -8) . For 1ppb U in a water sample, this represents 5 X 10 (super 7) atoms (super 236) U per liter. As demonstrations of our techniques we will present data from several ongoing studies at the Hanford Site, where decades of nuclear related activities have left significant local U contamination, including: (1) investigation of the connection between groundwater and vadose zone contamination in the B-BX-BY Waste Management Area (WMA) (Christensen et al. (2004) Env. Sci. Tech., 38:3330) (2) behavior of vadose zone U contamination in a core from the T WMA (3) sourcing, apportioning and tracing the contribution of the Hanford Site to the U flux of the Columbia River. JF - Abstracts with Programs - Geological Society of America AU - Christensen, John N AU - Dresel, P Evan AU - Conrad, Mark E AU - DePaolo, Donald J AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 478 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Washington KW - precision KW - isotopes KW - isotope ratios KW - pollution KW - mass spectra KW - Hanford Site KW - radioactive waste KW - ICP mass spectra KW - radioactive isotopes KW - metals KW - U-238/U-233 KW - uranium KW - spectra KW - waste disposal KW - U-238/U-235 KW - U-238/U-236 KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51464296?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=High-precision+uranium+isotopic+studies+at+the+Hanford+Site%2C+Washington+using+MC-ICPMS&rft.au=Christensen%2C+John+N%3BDresel%2C+P+Evan%3BConrad%2C+Mark+E%3BDePaolo%2C+Donald+J%3BAnonymous&rft.aulast=Christensen&rft.aufirst=John&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=478&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Hanford Site; ICP mass spectra; isotope ratios; isotopes; mass spectra; metals; pollution; precision; radioactive isotopes; radioactive waste; spectra; U-238/U-233; U-238/U-235; U-238/U-236; United States; uranium; Washington; waste disposal ER - TY - JOUR T1 - Quantification of enhanced bioreduction of Cr(VI) using (super 13) C-PLFA monitoring coupled with advanced microbiological techniques AN - 51464285; 2007-034449 AB - Cr(VI) is a widespread groundwater contaminant. Under appropriate geochemical conditions, it can be biologically reduced to Cr(III), a much less toxic/mobile form of Cr. To stimulate Cr(VI) bioreduction in groundwater at the Hanford 100H field site, 18 kg of HRC (super R) was injected into the aquifer. HRC (super R) consists of polylactate esterified to a glycerol backbone that slowly releases lactic acid, providing a carbon source to support microbial activity. 10 g of (super 13) C-labeled polylactate was added to the HRC (super R) giving it a delta (super 13) C value of approximately 40ppm (vs. an unlabeled value of -15ppm). The response of the subsurface microbial communities to the HRC (super R) injection is being monitored in water samples collected from 4 depth intervals in the injection well and in an extraction well located approximately 5 m down-gradient of the injection well. Standard geochemical parameters (e.g., dissolved O (sub 2) , E (sub h) , anion chemistry) and the delta (super 13) C values of dissolved inorganic carbon (DIC), dissolved organic carbon, and phospholipid fatty acid (PLFA) extracts of biomass in the samples are being analyzed. Cell counts, PLFA and 16s rDNA analyses are also being monitored. Microbial populations increased from background levels of 200ppm) much higher the bulk delta (super 13) C of the labeled HRC (super R) , reflecting the faster dissolution rate for the (super 13) C-labeled polylactate relative to the HRC (super R) . After the delta (super 13) C of the PLFA peaked, it quickly returned to background values (-15ppm) indicating rapid turnover of biomass in the system. Several PLFA peaks specific to organisms known to metabolize glycerol (e.g., Flavobacteria) increased, but did not show the same increase in delta (super 13) C. These data are being used to model changes in biological activity resulting from HRC (super R) injection. JF - Abstracts with Programs - Geological Society of America AU - Conrad, Mark E AU - Borglin, Sharon E AU - Brodie, Eoin AU - Woods, Katharine N AU - Faybishenko, Boris A AU - Hazen, Terry C AU - Long, Philip E AU - Willett, Anna AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 473 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - fatty acids KW - lipids KW - isotopes KW - biomass KW - techniques KW - stable isotopes KW - remediation KW - ground water KW - quantitative analysis KW - carbon KW - reduction KW - organic carbon KW - water pollution KW - geochemistry KW - chromium KW - anions KW - Washington KW - monitoring KW - pollutants KW - isotope ratios KW - C-13/C-12 KW - pollution KW - Hanford Site KW - bioremediation KW - hydrochemistry KW - models KW - organic compounds KW - organic acids KW - phospholipids KW - dissolved materials KW - metals KW - bacteria KW - DNA KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51464285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Quantification+of+enhanced+bioreduction+of+Cr%28VI%29+using+%28super+13%29+C-PLFA+monitoring+coupled+with+advanced+microbiological+techniques&rft.au=Conrad%2C+Mark+E%3BBorglin%2C+Sharon+E%3BBrodie%2C+Eoin%3BWoods%2C+Katharine+N%3BFaybishenko%2C+Boris+A%3BHazen%2C+Terry+C%3BLong%2C+Philip+E%3BWillett%2C+Anna%3BAnonymous&rft.aulast=Conrad&rft.aufirst=Mark&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - anions; bacteria; biomass; bioremediation; C-13/C-12; carbon; chromium; dissolved materials; DNA; fatty acids; geochemistry; ground water; Hanford Site; hydrochemistry; isotope ratios; isotopes; lipids; metals; models; monitoring; organic acids; organic carbon; organic compounds; phospholipids; pollutants; pollution; quantitative analysis; reduction; remediation; stable isotopes; techniques; United States; Washington; water pollution; water wells ER - TY - JOUR T1 - Fission isotopes for identification of nuclear waste sources AN - 51464279; 2007-034475 AB - Radioactive fission products are the major risk drivers at nuclear waste sites. Other radioactive and stable fission isotopes, of less concern from a risk perspective (e.g., molybdenum, ruthenium, palladium, xenon), can help identify source areas and distinguish contributions from different potential sources. Differing reactor conditions change the relative contributions of uranium and plutonium fission, leading to distinct fission product isotopic ratios. Technetium-99 is an example of a long-lived isotope (213,000 year half-life) that has a high environmental mobility under oxidizing conditions. The high mobility in groundwater and long half life make it a major constituent of concern for risk assessment and site remediation decisions. However, fission technetium is essentially mono-isotopic so isotopic analogs must be used in source attribution. Ruthenium is an attractive candidate because it is chemically similar to technetium and has a low natural background. Natural abundance, uranium fission, and plutonium fission produce distinctive stable ruthenium isotopic signatures. Thus ruthenium isotope data provide additional constraints on possible technetium-99 sources. Inductively-coupled plasma mass spectrometry (ICP-MS) provides sensitive measurements of ruthenium and other isotopes of interest. For isotopic ratio work, particular attention must be paid to the evaluation and removal of atomic and polyatomic interferences. Work is currently underway to develop separation and preconcentration techniques/methods that allow for the precise and quantitative analysis of Ruthenium-101, -102, and -104 ratios via ICP-MS. These results will be used to constrain the source term(s) responsible for technetium-99 groundwater contamination at Waste Management Area-T, Hanford Site, Washington. JF - Abstracts with Programs - Geological Society of America AU - Dresel, P Evan AU - Brown, Christopher F AU - Farmer, Orville T, III AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 478 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - isotopes KW - mass spectra KW - platinum group KW - radioactive waste KW - ground water KW - radioactive isotopes KW - quantitative analysis KW - noble gases KW - molybdenum KW - spectra KW - water pollution KW - fission KW - technetium KW - palladium KW - Washington KW - precision KW - oxidation KW - background level KW - pollution KW - Hanford Site KW - Tc-99 KW - xenon KW - ICP mass spectra KW - metals KW - identification KW - Ru-101 KW - Ru-102 KW - Ru-104 KW - waste disposal KW - ruthenium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51464279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Fission+isotopes+for+identification+of+nuclear+waste+sources&rft.au=Dresel%2C+P+Evan%3BBrown%2C+Christopher+F%3BFarmer%2C+Orville+T%2C+III%3BAnonymous&rft.aulast=Dresel&rft.aufirst=P&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=478&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - background level; fission; ground water; Hanford Site; ICP mass spectra; identification; isotopes; mass spectra; metals; molybdenum; noble gases; oxidation; palladium; platinum group; pollution; precision; quantitative analysis; radioactive isotopes; radioactive waste; Ru-101; Ru-102; Ru-104; ruthenium; spectra; Tc-99; technetium; United States; Washington; waste disposal; water pollution; xenon ER - TY - JOUR T1 - Groundwater and the hyporheic zone of the Columbia River, Hanford Site, Washington AN - 51375452; 2007-106006 AB - Groundwater beneath the Hanford Site contains chemicals and radionuclides from past operations associated with plutonium production. Some contamination discharges into the Columbia River, which is a gaining stream as it crosses the Site. The Hanford Reach of the river is considered excellent in water quality, and is used for municipal water supplies and recreational activities. Degradation of water quality of the main stream is negligible, because of the low rate of groundwater discharge when compared to the flow of the river. However, the riverbed supports important habitat, e.g., gravelly substrate used by fall Chinook salmon for spawning. Thus, water quality in the hyporheic zone is an important consideration when evaluating remedial action alternatives for groundwater plumes. Because of daily and seasonal river stage cycles (range one-half to several meters, respectively), a dynamic zone of interaction is present between the groundwater and river systems. Field research and computer simulation activities have shown this zone to be characterized by rapidly changing gradients and flow patterns; layering and/or mixing of river water with groundwater; and variable water chemistry. Mixing with river water dilutes contaminants that reach the hyporheic zone, and river water characteristics may enhance sorption to aquifer solids for some dissolved contaminants, thus reducing their mobility. Examples of these processes are shown using a uranium plume that enters the river in an area where waste effluent from nuclear fuel fabrication activities have contaminated the vadose zone and aquifer. Near the river, the plume is monitored by analyzing samples from wells, plastic tubes implanted in the aquifer along the shore, and riverbank springs. Impacts to the river ecosystem are evaluated using samples of river water and channel sediment, and by monitoring biota. Clams are effective indicators of where uranium-contaminated groundwater upwells through the riverbed. Computer simulations of groundwater flow and uranium transport provide estimates for rates associated with discharge from the aquifer into the river. The end product of these investigations is a comprehensive characterization of a contaminant plume, which can be used in risk assessments and in selecting appropriate and effective remedial actions. JF - Abstracts with Programs - Geological Society of America AU - Peterson, Robert E AU - Patton, Gregory W AU - Waichler, Scott R AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 105 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - cycles KW - water quality KW - degradation KW - contaminant plumes KW - isotopes KW - data processing KW - characterization KW - simulation KW - remediation KW - ground water KW - substrates KW - radioactive isotopes KW - sediments KW - springs KW - discharge KW - water pollution KW - geochemistry KW - water supply KW - Washington KW - monitoring KW - Columbia River KW - biochemistry KW - effluents KW - surface water KW - pollution KW - Hanford Site KW - rates KW - hyporheic zone KW - hydrochemistry KW - samples KW - aquifers KW - habitat KW - dissolved materials KW - metals KW - risk assessment KW - uranium KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51375452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Groundwater+and+the+hyporheic+zone+of+the+Columbia+River%2C+Hanford+Site%2C+Washington&rft.au=Peterson%2C+Robert+E%3BPatton%2C+Gregory+W%3BWaichler%2C+Scott+R%3BAnonymous&rft.aulast=Peterson&rft.aufirst=Robert&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; aquifers; biochemistry; characterization; Columbia River; contaminant plumes; cycles; data processing; degradation; discharge; dissolved materials; effluents; geochemistry; ground water; habitat; Hanford Site; hydrochemistry; hyporheic zone; isotopes; metals; monitoring; pollution; radioactive isotopes; rates; remediation; risk assessment; samples; sediments; simulation; springs; substrates; surface water; United States; uranium; Washington; water pollution; water quality; water supply ER - TY - JOUR T1 - Non-exponential colloid distribution profiles as a result of radial flow field AN - 51372816; 2007-093905 AB - Many laboratory column transport experiments show non-exponential decrease of colloid concentration with travel distance, in contrast to the exponential decay profiles predicted by colloid filtration theory. The non-exponential distribution profiles are often attributed to heterogeneity in colloid population and in collector grain surface, and have been modeled using a distribution in colloid deposition rate coefficients (i.e., log-normal, bimodal, and power-law distributions). Straining has also been proposed as the cause of non-exponential decay profiles. Such non-exponential distribution profiles, however, may be the result of very high local pore velocity and subsequent high deposition of colloids near the injection point, since pore velocity rapidly increases as radius decreases in a radial flow system, and colloid deposition increases as the pore velocity increases (to the power of 1/3) according to the colloid filtration theory. Our direct observation of microsphere transport through packed sand with an epi-fluorescence imaging system showed very high deposition of microspheres near the radial injection point. A particle model incorporating the radial flow field and velocity-dependence of deposition rate coefficient (K (sub f) = av (super 1/3) where a is a constant and v is the velocity) was used to simulate colloid transport. The retained microsphere concentration from the particle model is approximately log-linear at longer distances, but increases sharply near the injection point, consistent with the profiles obtained via direct imaging. JF - Abstracts with Programs - Geological Society of America AU - Wang, Yonggang AU - Zhang, Pengfei AU - Scheibe, Timothy D AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 533 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - sand KW - experimental studies KW - colloidal materials KW - clastic sediments KW - sedimentation KW - injection KW - simulation KW - porosity KW - models KW - spatial distribution KW - laboratory studies KW - transport KW - fluorescence KW - deposition KW - sedimentation rates KW - filtration KW - sediments KW - velocity KW - heterogeneity KW - particles KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51372816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Non-exponential+colloid+distribution+profiles+as+a+result+of+radial+flow+field&rft.au=Wang%2C+Yonggang%3BZhang%2C+Pengfei%3BScheibe%2C+Timothy+D%3BAnonymous&rft.aulast=Wang&rft.aufirst=Yonggang&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=533&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - clastic sediments; colloidal materials; deposition; experimental studies; filtration; fluorescence; heterogeneity; injection; laboratory studies; models; particles; porosity; sand; sedimentation; sedimentation rates; sediments; simulation; spatial distribution; transport; velocity ER - TY - JOUR T1 - Assessing groundwater vulnerability using a dilution factor approach AN - 51372483; 2007-105982 AB - Three-dimensional subsurface simulation modeling of contaminant transport at regional scales can require prohibitively costly computational efforts. Although two-dimensional contaminant transport simulations can be used to assess groundwater vulnerability, these assessments are biased by higher concentrations than those predicted by three-dimensional simulations. In this work, a dilution factor approach is proposed to predict peak concentrations for a three-dimensional domain based on two-dimensional simulation results. Using analytical solutions, the concentration relation between two- and three-dimensional solutions are first elucidated for solute transport in uniform porous media with steady-state two- and three-dimensional flow. Dilution factors are then developed with the aid of simulated breakthrough curves from data sets at the Hanford site in southeastern Washington state. Comparisons of the dilution factor approach and three-dimensional solute transport simulations show that the dilution factors perform well with respect to mass balance, concentration magnitude, and the timing of concentration peaks. Although practical limitations exist on the application of the dilution factor, this approach greatly reduces the computational cost associated with large-scale simulations while providing realistic predictions of peak concentrations and arrival times. JF - Abstracts with Programs - Geological Society of America AU - Zhang, Z Fred AU - Freedman, Vicky L AU - Connelly, Michael AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 101 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - solute transport KW - aquifer vulnerability KW - Washington KW - three-dimensional models KW - prediction KW - pollution KW - Hanford Site KW - porous materials KW - simulation KW - southeastern Washington KW - two-dimensional models KW - ground water KW - evaluation KW - aquifers KW - models KW - transport KW - dilution KW - mass balance KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51372483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Assessing+groundwater+vulnerability+using+a+dilution+factor+approach&rft.au=Zhang%2C+Z+Fred%3BFreedman%2C+Vicky+L%3BConnelly%2C+Michael%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; dilution; evaluation; ground water; Hanford Site; mass balance; models; pollution; porous materials; prediction; simulation; solute transport; southeastern Washington; three-dimensional models; transport; two-dimensional models; United States; Washington; water pollution ER - TY - JOUR T1 - Field-scale reactive transport simulations of multiple terminal electron accepting processes AN - 51372254; 2007-093920 AB - Field-scale simulations involving multiple terminal electron accepting processes (TEAPs) and abiotic processes are often limited by reaction parameterization and complexity associated with heterogeneous groundwater flow. We have constructed a 3D field-scale groundwater flow and multicomponent reactive transport model that incorporates multiple TEAPs obtained from a batch TEAP model which has been successfully formulated and used to simulate laboratory experimental observations. Field-scale simulation is conducted using the reaction system and parameters derived from the batch TEAP model and the conceptual model and hydrologic parameters estimated from the results of pumping tests and water level monitoring and model interpretation of a tracer test conducted in August 2004 for a highly heterogeneous surficial aquifer near Oak Ridge, TN. Preliminary simulations are used to understand field-scale processes and evaluate alternative experimental designs involving injection of ethanol to stimulate microbial reduction of uranium and precipitation of U(IV) minerals. JF - Abstracts with Programs - Geological Society of America AU - Fang, Yilin AU - Scheibe, Timothy D AU - Roden, Eric E AU - Brooks, Scott C AU - Anonymous Y1 - 2005/10// PY - 2005 DA - October 2005 SP - 535 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - simulation KW - Oak Ridge Tennessee KW - observations KW - ground water KW - transport KW - Tennessee KW - alcohols KW - Anderson County Tennessee KW - reduction KW - geochemistry KW - electrons KW - processes KW - experimental studies KW - injection KW - properties KW - hydrochemistry KW - aquifers KW - models KW - ethanol KW - organic compounds KW - heterogeneous materials KW - precipitation KW - metals KW - uranium KW - actinides KW - field studies KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51372254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Field-scale+reactive+transport+simulations+of+multiple+terminal+electron+accepting+processes&rft.au=Fang%2C+Yilin%3BScheibe%2C+Timothy+D%3BRoden%2C+Eric+E%3BBrooks%2C+Scott+C%3BAnonymous&rft.aulast=Fang&rft.aufirst=Yilin&rft.date=2005-10-01&rft.volume=37&rft.issue=7&rft.spage=535&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2005 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2007-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; alcohols; Anderson County Tennessee; aquifers; electrons; ethanol; experimental studies; field studies; geochemistry; ground water; heterogeneous materials; hydrochemistry; injection; metals; models; Oak Ridge Tennessee; observations; organic compounds; precipitation; processes; properties; reduction; simulation; Tennessee; transport; United States; uranium ER - TY - JOUR T1 - Combining microarray and genomic data to predict DNA binding motifs AN - 20087489; 6536495 AB - The ability to detect regulatory elements within genome sequences is important in understanding how gene expression is controlled in biological systems. In this work, microarray data analysis is combined with genome sequence analysis to predict DNA sequences in the photosynthetic bacterium Rhodobacter sphaeroides that bind the regulators PrrA, PpsR and FnrL. These predictions were made by using hierarchical clustering to detect genes that share similar expression patterns. The DNA sequences upstream of these genes were then searched for possible transcription factor recognition motifs that may be involved in their co-regulation. The approach used promises to be widely applicable for the prediction of cis-acting DNA binding elements. Using this method the authors were independently able to detect and extend the previously described consensus sequences that have been suggested to bind FnrL and PpsR. In addition, sequences that may be recognized by the global regulator PrrA were predicted. The results support the earlier suggestions that the DNA binding sequence of PrrA may have a variable-sized gap between its conserved block elements. Using the predicted DNA binding sequences, a whole-genome-scale analysis was performed to determine the relative importance of the interplay between the three regulators PpsR, FnrL and PrrA. Results of this analysis showed that, compared to the regulation by PpsR and FnrL, a much larger number of genes are candidates to be regulated by PrrA. The study demonstrates by example that integration of multiple data types can be a powerful approach for inferring transcriptional regulatory patterns in microbial systems, and it allowed the detection of photosynthesis-related regulatory patterns in R. sphaeroides. JF - Microbiology AU - Mao, Linyong AU - Mackenzie, Chris AU - Roh, Jung H AU - Eraso, Jesus M AU - Kaplan, Samuel AU - Resat, Haluk AD - Pacific Northwest National Laboratory, Computational Biology and Bioinformatics Group, PO Box 999, MS: K7-90, Richland, WA 99352, USA, haluk.resat@pnl.gov Y1 - 2005/10// PY - 2005 DA - Oct 2005 SP - 3197 EP - 3213 PB - Society for General Microbiology, Marlborough House, Basingstoke Road Spencers Wood Reading RG7 1AG UK, [URL:http://www.sgm.ac.uk/] VL - 151 IS - 10 SN - 1350-0872, 1350-0872 KW - Genetics Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - Genomes KW - Gene expression KW - Integration KW - Rhodobacter sphaeroides KW - Data processing KW - Nucleotide sequence KW - Transcription factors KW - Regulatory sequences KW - Conserved sequence KW - genomics KW - DNA microarrays KW - J 02725:DNA KW - N 14810:Methods KW - W 30960:Bioinformatics & Computer Applications KW - G 07780:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20087489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbiology&rft.atitle=Combining+microarray+and+genomic+data+to+predict+DNA+binding+motifs&rft.au=Mao%2C+Linyong%3BMackenzie%2C+Chris%3BRoh%2C+Jung+H%3BEraso%2C+Jesus+M%3BKaplan%2C+Samuel%3BResat%2C+Haluk&rft.aulast=Mao&rft.aufirst=Linyong&rft.date=2005-10-01&rft.volume=151&rft.issue=10&rft.spage=3197&rft.isbn=&rft.btitle=&rft.title=Microbiology&rft.issn=13500872&rft_id=info:doi/10.1099%2Fmic.0.28167-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-01-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Gene expression; Genomes; Integration; Data processing; Regulatory sequences; Transcription factors; Nucleotide sequence; Conserved sequence; genomics; DNA microarrays; Rhodobacter sphaeroides DO - http://dx.doi.org/10.1099/mic.0.28167-0 ER - TY - JOUR T1 - Optimization of Acidothermus cellulolyticus Endoglucanase (E1) Production in Transgenic Tobacco Plants by Transcriptional, Post-transcription and Post-translational Modification AN - 19850024; 6885752 AB - An attempt was made to obtain a high-level production of intact Acidothermus cellulolyticus endoglucanase (E1) in transgenic tobacco plants. The E1 expression was examined under the control of the constitutive and strong Mac promoter or light-inducible tomato Rubisco small sub-unit (RbcS-3C) promoter with its original or Alfalfa Mosaic Virus (AMV) RNA4 5'-untranslated leader (UTL) and targeted to different sub-cellular compartments via transit peptides. The transit peptides included native E1, endoplasmic reticulum, vacuole, apoplast, and chloroplast. E1 expression and its stability in transgenic plants were determined via E1 activity, protein immunoblotting, and RNA gel-blotting analyses. Effects of sub-cellular compartments on E1 production and its stability were determined in transgenic tobacco plants carrying one of six transgene expression vectors, where the E1 was under the control of Mac promoter, mannopine synthase transcription terminator, and one of the five transit peptides. Transgenic tobacco plants with an apoplastic transit peptide had the highest average E1 activity and protein accumulation, which was about 0.25% of total leaf soluble proteins estimated via E1 specific activity and protein gel blots. Intercellular fluid analyses confirmed that E1 signal peptide functioned properly in tobacco cells to secret E1 protein into the apoplast. By replacing RbcS-3C UTL with AMV RNA4 UTL E1 production was enhanced more than twofold, while it was less effective than the mannopine synthase UTL. It was observed that RbcS-3C promoter was more favorable for E1 expression in transgenic plants than the Mac promoter. E1 activity in dried tobacco seeds stored one year at room temperature was 45% higher than that observed immediately after harvesting, suggesting that E1 protein can be stored at room temperature for a long period. E1 stability in different sub-cellular compartments and the optimal combination of promoter, 5'-UTL, and sub-cellular compartmentation for heterologous protein production in transgenic plants are discussed. JF - Transgenic Research AU - Dai, Ziyu AU - Hooker, Brian S AU - Quesenberry, Ryan D AU - Thomas, Steven R AD - Pacific Northwest National Laboratory, Richland, WA, 99352, USA, ziyu.dai@pnl.gov Y1 - 2005/10// PY - 2005 DA - Oct 2005 SP - 627 EP - 643 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 14 IS - 5 SN - 0962-8819, 0962-8819 KW - tomato KW - Virology & AIDS Abstracts; Genetics Abstracts; Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts KW - Endoglucanase KW - Signal peptides KW - Ribulose-bisphosphate carboxylase KW - Transgenic plants KW - Lycopersicon esculentum KW - Expression vectors KW - Endoplasmic reticulum KW - Promoters KW - Tobacco KW - Temperature effects KW - Immunoblotting KW - Compartmentation KW - Seeds KW - apoplast KW - Alfalfa mosaic virus KW - Leaves KW - Transcription KW - Chloroplasts KW - Post-translation KW - RNA KW - Vacuoles KW - Post-transcription KW - double prime E1 protein KW - Harvesting KW - G 07800:Plants and Algae KW - W2 32310:Enzymes and cofactors KW - W 30965:Miscellaneous, Reviews KW - V 22310:Genetics, Taxonomy & Structure KW - W4 310:Agricultural Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19850024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transgenic+Research&rft.atitle=Optimization+of+Acidothermus+cellulolyticus+Endoglucanase+%28E1%29+Production+in+Transgenic+Tobacco+Plants+by+Transcriptional%2C+Post-transcription+and+Post-translational+Modification&rft.au=Dai%2C+Ziyu%3BHooker%2C+Brian+S%3BQuesenberry%2C+Ryan+D%3BThomas%2C+Steven+R&rft.aulast=Dai&rft.aufirst=Ziyu&rft.date=2005-10-01&rft.volume=14&rft.issue=5&rft.spage=627&rft.isbn=&rft.btitle=&rft.title=Transgenic+Research&rft.issn=09628819&rft_id=info:doi/10.1007%2Fs11248-005-5695-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-07-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Endoglucanase; Temperature effects; Immunoblotting; Seeds; Compartmentation; apoplast; Signal peptides; Leaves; Transcription; Chloroplasts; Transgenic plants; Ribulose-bisphosphate carboxylase; Expression vectors; Promoters; Endoplasmic reticulum; RNA; Post-translation; Vacuoles; Tobacco; Post-transcription; double prime E1 protein; Harvesting; Lycopersicon esculentum; Alfalfa mosaic virus DO - http://dx.doi.org/10.1007/s11248-005-5695-5 ER - TY - JOUR T1 - Global Transcriptome Analysis of Shewanella oneidensis MR-1 Exposed to Different Terminal Electron Acceptors AN - 17667650; 6503233 AB - To gain insight into the complex structure of the energy-generating networks in the dissimilatory metal reducer Shewanella oneidensis MR-1, global mRNA patterns were examined in cells exposed to a wide range of metal and non-metal electron acceptors. Gene expression patterns were similar irrespective of which metal ion was used as electron acceptor, with 60% of the differentially expressed genes showing similar induction or repression relative to fumarate-respiring conditions. Several groups of genes exhibited elevated expression levels in the presence of metals, including those encoding putative multidrug efflux transporters, detoxification proteins, extracytoplasmic sigma factors and PAS-domain regulators. Only one of the 42 predicted c-type cytochromes in MR-1, SO3300, displayed significantly elevated transcript levels across all metal-reducing conditions. Genes encoding decaheme cytochromes MtrC and MtrA that were previously linked to the reduction of different forms of Fe(III) and Mn(IV), exhibited only slight decreases in relative mRNA abundances under metal-reducing conditions. In contrast, specific transcriptome responses were displayed to individual non-metal electron acceptors resulting in the identification of unique groups of nitrate-, thiosulfate- and TMAO-induced genes including previously uncharacterized multi-cytochrome gene clusters. Collectively, the gene expression results reflect the fundamental differences between metal and non-metal respiratory pathways of S. oneidensis MR-1, where the coordinate induction of detoxification and stress response genes play a key role in adaptation of this organism under metal-reducing conditions. Moreover, the relative paucity and/or the constitutive nature of genes involved in electron transfer to metals is likely due to the low-specificity and the opportunistic nature of the metal-reducing electron transport pathways. JF - Journal of Bacteriology AU - Beliaev, A S AU - Klingeman, D M AU - Klappenbach, JA AU - Wu, L AU - Romine, M F AU - Tiedje, J M AU - Nealson, KH AU - Fredrickson, J K AU - Zhou, J AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352. Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831. Center for Microbial Ecology, Michigan State University, East Lansing, Michigan 48824. Department of Earth Sciences, University of South California, Los Angeles, California 90089 Y1 - 2005/10// PY - 2005 DA - Oct 2005 SP - 7138 EP - 7145 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 187 IS - 20 SN - 0021-9193, 0021-9193 KW - Microbiology Abstracts B: Bacteriology KW - J 02723:Photosynthesis, electron transport and related phenomena UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17667650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Global+Transcriptome+Analysis+of+Shewanella+oneidensis+MR-1+Exposed+to+Different+Terminal+Electron+Acceptors&rft.au=Beliaev%2C+A+S%3BKlingeman%2C+D+M%3BKlappenbach%2C+JA%3BWu%2C+L%3BRomine%2C+M+F%3BTiedje%2C+J+M%3BNealson%2C+KH%3BFredrickson%2C+J+K%3BZhou%2C+J&rft.aulast=Beliaev&rft.aufirst=A&rft.date=2005-10-01&rft.volume=187&rft.issue=20&rft.spage=7138&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-12-01 N1 - Last updated - 2011-12-13 ER - TY - CPAPER T1 - Quantitative High Throughput Proteomics Using High Resolution Separations and Accurate Mass Spectrometry Measurements T2 - 2nd Annual Symposium on Enabling Technologies for Proteomics AN - 39739015; 4046117 JF - 2nd Annual Symposium on Enabling Technologies for Proteomics AU - Smith, Richard D Y1 - 2005/09/22/ PY - 2005 DA - 2005 Sep 22 KW - Mass spectroscopy KW - Proteomics KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39739015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2nd+Annual+Symposium+on+Enabling+Technologies+for+Proteomics&rft.atitle=Quantitative+High+Throughput+Proteomics+Using+High+Resolution+Separations+and+Accurate+Mass+Spectrometry+Measurements&rft.au=Smith%2C+Richard+D&rft.aulast=Smith&rft.aufirst=Richard&rft.date=2005-09-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2nd+Annual+Symposium+on+Enabling+Technologies+for+Proteomics&rft.issn=&rft_id=info:doi/ L2 - http://www.conciergeconnection.com/etp/agenda.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Functionalized TiO2 nanoparticles for use for in situ anion immobilization. AN - 68646614; 16201663 AB - Anatase particles (40-60 nm) were coated with an organosilane monolayer terminated with an ethylenediamine (EDA) ligand. These functionalized nanoparticles (FNPs) were then treated with an aqueous solution of Cu(II) to create a cationic Cu-EDA complex bound to the nanoparticle surface. Cu(II) and EDA ligand incorporation were confirmed by X-ray photoelectron spectroscopy (XPS) analysis. The Cu(EDA)2 FNP was then studied for its binding affinity for pertechnetate anion from a Hanford groundwater matrix. The Cu(EDA)2 FNP was also evaluated for its injectability into a porous medium for possible application as a subsurface semipermeable reactive barrier. Injection was readily accomplished, and resulted in a highly uniform distribution of the FNP sorbent in the test column. JF - Environmental science & technology AU - Mattigod, Shas V AU - Fryxell, Glen E AU - Alford, Kentin AU - Gilmore, Tyler AU - Parker, Kent AU - Serne, Jeff AU - Engelhard, Mark AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2005/09/15/ PY - 2005 DA - 2005 Sep 15 SP - 7306 EP - 7310 VL - 39 IS - 18 SN - 0013-936X, 0013-936X KW - Anions KW - 0 KW - Cations KW - Ethylenediamines KW - Ions KW - Powders KW - Water Pollutants KW - titanium dioxide KW - 15FIX9V2JP KW - ethylenediamine KW - 60V9STC53F KW - Technetium KW - 7440-26-8 KW - Copper KW - 789U1901C5 KW - Sodium Pertechnetate Tc 99m KW - A0730CX801 KW - Titanium KW - D1JT611TNE KW - Index Medicus KW - Spectroscopy, Fourier Transform Infrared KW - Technetium -- chemistry KW - Nanostructures -- analysis KW - Magnetic Resonance Spectroscopy KW - Nanotechnology KW - Permeability KW - Spectrometry, X-Ray Emission -- methods KW - Sodium Pertechnetate Tc 99m -- analysis KW - Kinetics KW - Adsorption KW - Models, Chemical KW - Electrochemistry KW - Surface Properties KW - Ethylenediamines -- analysis KW - Titanium -- analysis KW - Copper -- analysis KW - Water Purification -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68646614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Functionalized+TiO2+nanoparticles+for+use+for+in+situ+anion+immobilization.&rft.au=Mattigod%2C+Shas+V%3BFryxell%2C+Glen+E%3BAlford%2C+Kentin%3BGilmore%2C+Tyler%3BParker%2C+Kent%3BSerne%2C+Jeff%3BEngelhard%2C+Mark&rft.aulast=Mattigod&rft.aufirst=Shas&rft.date=2005-09-15&rft.volume=39&rft.issue=18&rft.spage=7306&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-12-12 N1 - Date created - 2005-10-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Electrochemical sensor for organophosphate pesticides and nerve agents using zirconia nanoparticles as selective sorbents. AN - 68569739; 16159119 AB - An electrochemical sensor for detection of organophosphate (OP) pesticides and nerve agents using zirconia (ZrO2) nanoparticles as selective sorbents is presented. Zirconia nanoparticles were electrodynamically deposited onto the polycrystalline gold electrode by cyclic voltammetry. Because of the strong affinity of zirconia for the phosphoric group, nitroaromatic OPs strongly bind to the ZrO2 nanoparticle surface. The electrochemical characterization and anodic stripping voltammetric performance of bound OPs were evaluated using cyclic voltammetric and square-wave voltammetric (SWV) analysis. SWV was used to monitor the amount of bound OPs and provide simple, fast, and facile quantitative methods for nitroaromatic OP compounds. The sensor surface can be regenerated by successively running SWV scanning. Operational parameters, including the amount of nanoparticles, adsorption time, and pH of the reaction medium have been optimized. The stripping voltammetric response is highly linear over the 5-100 ng/mL (ppb) methyl parathion range examined (2-min adsorption), with a detection limit of 3 ng/mL and good precision (RSD = 5.3%, n = 10). The detection limit was improved to 1 ng/mL by using 10-min adsorption time. The promising stripping voltammetric performances open new opportunities for fast, simple, and sensitive analysis of OPs in environmental and biological samples. These findings can lead to a widespread use of electrochemical sensors to detect OP contaminates. JF - Analytical chemistry AU - Liu, Guodong AU - Lin, Yuehe AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2005/09/15/ PY - 2005 DA - 2005 Sep 15 SP - 5894 EP - 5901 VL - 77 IS - 18 SN - 0003-2700, 0003-2700 KW - Insecticides KW - 0 KW - Organophosphorus Compounds KW - Gold KW - 7440-57-5 KW - Zirconium KW - C6V6S92N3C KW - zirconium oxide KW - S38N85C5G0 KW - Index Medicus KW - Molecular Structure KW - Hydrogen-Ion Concentration KW - Electrodes KW - Electrochemistry KW - Gold -- chemistry KW - Microscopy, Electron, Scanning KW - Zirconium -- chemistry KW - Neurons -- drug effects KW - Insecticides -- chemistry KW - Organophosphorus Compounds -- pharmacology KW - Organophosphorus Compounds -- chemistry KW - Insecticides -- pharmacology KW - Nanoparticles -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68569739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+chemistry&rft.atitle=Electrochemical+sensor+for+organophosphate+pesticides+and+nerve+agents+using+zirconia+nanoparticles+as+selective+sorbents.&rft.au=Liu%2C+Guodong%3BLin%2C+Yuehe&rft.aulast=Liu&rft.aufirst=Guodong&rft.date=2005-09-15&rft.volume=77&rft.issue=18&rft.spage=5894&rft.isbn=&rft.btitle=&rft.title=Analytical+chemistry&rft.issn=00032700&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-03-23 N1 - Date created - 2005-09-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A study of spectral integration and normalization in NMR-based metabonomic analyses. AN - 68504726; 15990265 AB - Metabonomics involves the quantitation of the dynamic multivariate metabolic response of an organism to a pathological event or genetic modification [J.K. Nicholson, J.C. Lindon, E. Holmes, Xenobiotica 29 (1999) 1181-1189]. The analysis of these data involves the use of appropriate multivariate statistical methods; Principal Component Analysis (PCA) has been documented as a valuable pattern recognition technique for 1H NMR spectral data [J.T. Brindle, H. Antti, E. Holmes, G. Tranter, J.K. Nicholson, H.W. Bethell, S. Clarke, P.M. Schofield, E. McKilligin, D.E. Mosedale, D.J. Grainger, Nat. Med. 8 (2002) 1439-1444; B.C. Potts, A.J. Deese, G.J. Stevens, M.D. Reily, D.G. Robertson, J. Theiss, J. Pharm. Biomed. Anal. 26 (2001) 463-476; D.G. Robertson, M.D. Reily, R.E. Sigler, D.F. Wells, D.A. Paterson, T.K. Braden, Toxicol. Sci. 57 (2000) 326-337; L.C. Robosky, D.G. Robertson, J.D. Baker, S. Rane, M.D. Reily, Comb. Chem. High Throughput Screen. 5 (2002) 651-662]. Prior to PCA the raw data is typically processed through four steps; (1) baseline correction, (2) endogenous peak removal, (3) integration over spectral regions to reduce the number of variables, and (4) normalization. The effect of the size of spectral integration regions and normalization has not been well studied. The variability structure and classification accuracy on two distinctly different datasets are assessed via PCA and a leave-one-out cross-validation approach under two normalization approaches and an array of spectral integration regions. The first dataset consists of urine from 15 male Wistar-Hannover rats dosed with ANIT measured at five time points, mimicking drug-induced cholangiolitic hepatitis [D.G. Robertson, M.D. Reily, R.E. Sigler, D.F. Wells, D.A. Paterson, T.K. Braden, Toxicol. Sci. 57 (2000) 326-337; J.P. Shockcor, E. Holmes, Curr. Top. Med. Chem. 2 (2002) 35-51; N.J. Waters, E. Holmes, A. Williams, C.J. Waterfield, R.D. Farrant, J.K. Nicholson, Chem. Res. Toxicol. 14 (2001) 1401-1412]. The second data is serum samples from young male C57BL/6 mice subjected to instillation of pancreatic elastase producing emphysema type symptoms [C. Kuhn, S.Y. Yu, M. Chraplyvy, H.E. Linder, R.M. Senior, Lab. Invest. 34 (1976) 372-380; C. Kuhn, R.M. Senior, Lung 155 (1978) 185-197]. This study indicates that independent of the normalization method the classification accuracy achieved from metabonomic studies is not highly sensitive to the size of the spectral integration region. Additionally, both datasets scaled to mean zero and unity variance (auto-scaled) have higher variability within classification accuracy over spectral integration window widths than data scaled to the total intensity of the spectrum. Of the top 10 latent variables for the ANIT dataset the auto-scale normalization has standard deviations larger than the total-scale in seven cases. In the case of the elastase all standard deviations are larger for the auto-scaling. JF - Journal of pharmaceutical and biomedical analysis AU - Webb-Robertson, Bobbie-Jo M AU - Lowry, David F AU - Jarman, Kristin H AU - Harbo, Sam J AU - Meng, Q Ryan AU - Fuciarelli, Alfred F AU - Pounds, Joel G AU - Lee, K Monica AD - Pacific Northwest National Laboratory, P.O. Box 999, K7-90, Richland, WA 99352, USA. bobbie-jo.webb-robertson@pnl.gov Y1 - 2005/09/15/ PY - 2005 DA - 2005 Sep 15 SP - 830 EP - 836 VL - 39 IS - 3-4 SN - 0731-7085, 0731-7085 KW - Blood Proteins KW - 0 KW - Pancreatic Elastase KW - EC 3.4.21.36 KW - Index Medicus KW - Software KW - Animals KW - Reproducibility of Results KW - Pancreatic Elastase -- metabolism KW - Humans KW - Principal Component Analysis KW - Mice KW - Models, Statistical KW - Lung -- pathology KW - Multivariate Analysis KW - Rats KW - Rats, Wistar KW - Mice, Inbred C57BL KW - Emphysema -- pathology KW - Time Factors KW - Male KW - Proteomics -- methods KW - Magnetic Resonance Spectroscopy -- methods KW - Computational Biology -- methods KW - Blood Proteins -- chemistry KW - Blood Proteins -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68504726?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+pharmaceutical+and+biomedical+analysis&rft.atitle=A+study+of+spectral+integration+and+normalization+in+NMR-based+metabonomic+analyses.&rft.au=Webb-Robertson%2C+Bobbie-Jo+M%3BLowry%2C+David+F%3BJarman%2C+Kristin+H%3BHarbo%2C+Sam+J%3BMeng%2C+Q+Ryan%3BFuciarelli%2C+Alfred+F%3BPounds%2C+Joel+G%3BLee%2C+K+Monica&rft.aulast=Webb-Robertson&rft.aufirst=Bobbie-Jo&rft.date=2005-09-15&rft.volume=39&rft.issue=3-4&rft.spage=830&rft.isbn=&rft.btitle=&rft.title=Journal+of+pharmaceutical+and+biomedical+analysis&rft.issn=07317085&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-01-06 N1 - Date created - 2005-08-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Geochemically generated, energy-rich substrates and indigenous microorganisms in deep, ancient groundwater AN - 868009843; 2011-043334 JF - Geomicrobiology Journal AU - Kieft, Thomas L AU - McCuddy, Sean M AU - Onstott, T C AU - Davidson, Mark AU - Lin, Li-Hung AU - Mislowack, Bianca AU - Pratt, Lisa AU - Boice, Erik AU - Sherwood Lollar, Barbara AU - Lippmann-Pipke, Johanna AU - Pfiffner, Susan M AU - Phelps, Tommy J AU - Gihring, Thomas AU - Moser, Duane AU - van Heerden, Arnand Y1 - 2005/09// PY - 2005 DA - September 2005 SP - 325 EP - 335 PB - Taylor & Francis, London VL - 22 IS - 6 SN - 0149-0451, 0149-0451 KW - photosynthesis KW - isotope fractionation KW - oxygen KW - isotopes KW - aliphatic hydrocarbons KW - ecosystems KW - salinity KW - stable isotopes KW - ground water KW - substrates KW - energy sources KW - noble gases KW - age KW - South Africa KW - geochemistry KW - Witwatersrand KW - fracture water KW - methane KW - metabolism KW - isotope ratios KW - photochemistry KW - free energy KW - O-18/O-16 KW - alkanes KW - depth KW - nutrients KW - organic compounds KW - boreholes KW - dissolved materials KW - D/H KW - hydrogen KW - biosphere KW - Southern Africa KW - residence time KW - hydrocarbons KW - Africa KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/868009843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Geochemically+generated%2C+energy-rich+substrates+and+indigenous+microorganisms+in+deep%2C+ancient+groundwater&rft.au=Kieft%2C+Thomas+L%3BMcCuddy%2C+Sean+M%3BOnstott%2C+T+C%3BDavidson%2C+Mark%3BLin%2C+Li-Hung%3BMislowack%2C+Bianca%3BPratt%2C+Lisa%3BBoice%2C+Erik%3BSherwood+Lollar%2C+Barbara%3BLippmann-Pipke%2C+Johanna%3BPfiffner%2C+Susan+M%3BPhelps%2C+Tommy+J%3BGihring%2C+Thomas%3BMoser%2C+Duane%3Bvan+Heerden%2C+Arnand&rft.aulast=Kieft&rft.aufirst=Thomas&rft.date=2005-09-01&rft.volume=22&rft.issue=6&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/10.1080%2F01490450500184876 L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - Africa; age; aliphatic hydrocarbons; alkanes; biosphere; boreholes; D/H; depth; dissolved materials; ecosystems; energy sources; fracture water; free energy; geochemistry; ground water; hydrocarbons; hydrogen; isotope fractionation; isotope ratios; isotopes; metabolism; methane; microorganisms; noble gases; nutrients; O-18/O-16; organic compounds; oxygen; photochemistry; photosynthesis; residence time; salinity; South Africa; Southern Africa; stable isotopes; substrates; Witwatersrand DO - http://dx.doi.org/10.1080/01490450500184876 ER - TY - JOUR T1 - Nanostructured electrochemical sensors based on functionalized nanoporous silica for voltammetric analysis of lead, mercury, and copper. AN - 68640682; 16193970 AB - We have successfully developed electrochemical sensors based on functionalized nanostructured materials for voltammetric analysis of toxic metal ions. Glycinylurea self-assembled monolayers on mesoporous silica (Gly-UR SAMMS) were incorporated in carbon paste electrodes for the detection of toxic metal ions such as lead, copper, and mercury based on adsorptive stripping voltammetry (AdSV). The electrochemical sensor yields a linear response at a low ppb level of Pb2+ (i.e., 2.5-50 ppb) after a 2-min preconcentration period, with reproducible measurements (%RSD = 3.5, N = 6) and an excellent detection limit (1 ppb). By exploiting the interfacial functionality of Gly-UR SAMMS, the sensor is selective for the target species, does not require the use of a mercury film, and can be easily regenerated in dilute acid solution. The rigid, open, parallel pore structure, combined with suitable interfacial chemistry of SAMMS, also results in fast analysis times (2-3 min). The nanostructured SAMMS materials enable the development of miniature sensing devices that are compact and low cost, have low energy consumption, and are easily integrated into field-deployable units. JF - Journal of nanoscience and nanotechnology AU - Yantasee, Wassana AU - Fryxell, Glen E AU - Conner, Marianne M AU - Lin, Yuehe AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2005/09// PY - 2005 DA - September 2005 SP - 1537 EP - 1540 VL - 5 IS - 9 SN - 1533-4880, 1533-4880 KW - Environmental Pollutants KW - 0 KW - Lead KW - 2P299V784P KW - Silicon Dioxide KW - 7631-86-9 KW - Copper KW - 789U1901C5 KW - Mercury KW - FXS1BY2PGL KW - Index Medicus KW - Equipment Design KW - Nanostructures -- chemistry KW - Equipment Failure Analysis KW - Porosity KW - Environmental Pollutants -- analysis KW - Nanostructures -- analysis KW - Materials Testing KW - Electrochemistry -- methods KW - Transducers KW - Nanotechnology -- instrumentation KW - Mercury -- analysis KW - Nanotechnology -- methods KW - Copper -- analysis KW - Lead -- analysis KW - Silicon Dioxide -- chemistry KW - Electrochemistry -- instrumentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68640682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+nanoscience+and+nanotechnology&rft.atitle=Nanostructured+electrochemical+sensors+based+on+functionalized+nanoporous+silica+for+voltammetric+analysis+of+lead%2C+mercury%2C+and+copper.&rft.au=Yantasee%2C+Wassana%3BFryxell%2C+Glen+E%3BConner%2C+Marianne+M%3BLin%2C+Yuehe&rft.aulast=Yantasee&rft.aufirst=Wassana&rft.date=2005-09-01&rft.volume=5&rft.issue=9&rft.spage=1537&rft.isbn=&rft.btitle=&rft.title=Journal+of+nanoscience+and+nanotechnology&rft.issn=15334880&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-11-03 N1 - Date created - 2005-09-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Oxidative remobilization of biogenic uranium(IV) precipitates: effects of iron(II) and pH. AN - 68565332; 16151228 AB - The oxidative remobilization of uranium from biogenic U(IV) precipitates was investigated in bioreduced sediment suspensions in contact with atmospheric O2 with an emphasis on the influence of Fe(II) and pH on the rate and extent of U release from the solid to the aqueous phase. The sediment was collected from the U.S. Department of Energy Field Research Center (FRC) site at Oak Ridge, Tennessee. Biogenic U(IV) precipitates and bioreduced sediment were generated through anaerobic incubation with a dissimilatory metal reducing bacterium Shewanella putrefaciens strain CN32. The oxidative remobilization of freshly prepared and 1-yr aged biogenic U(IV) was conducted in 0.1 mol/L NaNO3 electrolyte with variable pH and Fe(II) concentrations. Biogenic U(IV)O2(s) was released into the aqueous phase with the highest rate and extent at pH 4 and 9, while the U remobilization was the lowest at circumneutral pH. Increasing Fe(II) significantly decreased U remobilization to the aqueous phase. From 70 to 100% of the U in the sediments used in all the tests was extractable at the experiment termination (41 d) with a bicarbonate solution (0.2 mol/L), indicating that biogenic U(IV) was oxidized regardless of Fe(II) concentration and pH. Sorption experiments and modeling calculations indicated that the inhibitive effect of Fe(II) on U(IV) oxidative remobilization was consistent with the Fe(III) oxide precipitation and U(VI) sorption to this secondary phase. JF - Journal of environmental quality AU - Zhong, Lirong AU - Liu, Chongxuan AU - Zachara, John M AU - Kennedy, Dave W AU - Szecsody, James E AU - Wood, Brian AD - Pacific Northwest National Laboratory, Richland, WA 99354, USA. lirong.zhong@pnl.gov PY - 2005 SP - 1763 EP - 1771 VL - 34 IS - 5 SN - 0047-2425, 0047-2425 KW - Uranium KW - 4OC371KSTK KW - Iron KW - E1UOL152H7 KW - Oxygen KW - S88TT14065 KW - Index Medicus KW - Oxidation-Reduction KW - Oxygen -- metabolism KW - Hydrogen-Ion Concentration KW - Tennessee KW - Biodegradation, Environmental KW - Phase Transition KW - Models, Biological KW - Geologic Sediments -- analysis KW - Uranium -- metabolism KW - Shewanella putrefaciens -- metabolism KW - Iron -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68565332?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+quality&rft.atitle=Oxidative+remobilization+of+biogenic+uranium%28IV%29+precipitates%3A+effects+of+iron%28II%29+and+pH.&rft.au=Zhong%2C+Lirong%3BLiu%2C+Chongxuan%3BZachara%2C+John+M%3BKennedy%2C+Dave+W%3BSzecsody%2C+James+E%3BWood%2C+Brian&rft.aulast=Zhong&rft.aufirst=Lirong&rft.date=2005-09-01&rft.volume=34&rft.issue=5&rft.spage=1763&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-05-31 N1 - Date created - 2005-09-09 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Crystal-chemical and energetic systematics of wadeite-type phases A (sub 2) BSi (sub 3) O (sub 9) (A = K, Cs; B = Si, Ti, Zr) AN - 51597329; 2006-036151 JF - Physics and Chemistry of Minerals AU - Xu, Hongwu AU - Navrotsky, Alexandra AU - Balmer, M Lou AU - Su, Yali Y1 - 2005/09// PY - 2005 DA - September 2005 SP - 426 EP - 435 PB - Springer-Verlag, Berlin-New York VL - 32 IS - 5-6 SN - 0342-1791, 0342-1791 KW - silicates KW - X-ray diffraction data KW - alkali metals KW - ring silicates KW - mantle KW - crystal structure KW - temperature KW - enthalpy KW - metals KW - wadeite KW - potassium KW - framework silicates KW - thermodynamic properties KW - crystal chemistry KW - synthetic materials KW - high temperature KW - energy KW - calorimetry KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51597329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Crystal-chemical+and+energetic+systematics+of+wadeite-type+phases+A+%28sub+2%29+BSi+%28sub+3%29+O+%28sub+9%29+%28A+%3D+K%2C+Cs%3B+B+%3D+Si%2C+Ti%2C+Zr%29&rft.au=Xu%2C+Hongwu%3BNavrotsky%2C+Alexandra%3BBalmer%2C+M+Lou%3BSu%2C+Yali&rft.aulast=Xu&rft.aufirst=Hongwu&rft.date=2005-09-01&rft.volume=32&rft.issue=5-6&rft.spage=426&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-005-0017-2 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - alkali metals; calorimetry; crystal chemistry; crystal structure; energy; enthalpy; framework silicates; high temperature; mantle; metals; potassium; ring silicates; silicates; synthetic materials; temperature; thermodynamic properties; wadeite; X-ray diffraction data DO - http://dx.doi.org/10.1007/s00269-005-0017-2 ER - TY - JOUR T1 - High Fe contents in presolar silicate grains; primary feature or the result of secondary processing? AN - 51515695; 2007-001264 JF - Meteoritics & Planetary Science AU - Floss, Christine AU - Stadermann, F J AU - Nguyen, A AU - Zinner, E AU - Lea, A S AU - Anonymous Y1 - 2005/09// PY - 2005 DA - September 2005 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 40, Suppl. SN - 1086-9379, 1086-9379 KW - silicates KW - alteration KW - condensation KW - interplanetary dust KW - equilibrium KW - iron KW - meteorites KW - presolar grains KW - stars KW - metals KW - Auger spectroscopy KW - spectroscopy KW - 05B:Petrology of meteorites and tektites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51515695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=High+Fe+contents+in+presolar+silicate+grains%3B+primary+feature+or+the+result+of+secondary+processing%3F&rft.au=Floss%2C+Christine%3BStadermann%2C+F+J%3BNguyen%2C+A%3BZinner%2C+E%3BLea%2C+A+S%3BAnonymous&rft.aulast=Floss&rft.aufirst=Christine&rft.date=2005-09-01&rft.volume=40%2C+Suppl.&rft.issue=&rft.spage=A49&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - METSOC 2005 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 9 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alteration; Auger spectroscopy; condensation; equilibrium; interplanetary dust; iron; metals; meteorites; presolar grains; silicates; spectroscopy; stars ER - TY - JOUR T1 - Auger spectroscopy as a complement to NanoSIMS studies of presolar materials AN - 51515201; 2007-001457 JF - Meteoritics & Planetary Science AU - Stadermann, F J AU - Floss, Christine AU - Zinner, E AU - Nguyen, A AU - Lea, A S AU - Anonymous Y1 - 2005/09// PY - 2005 DA - September 2005 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 40, Suppl. SN - 1086-9379, 1086-9379 KW - silicates KW - high-resolution methods KW - chemical analysis KW - isotopes KW - matrix KW - mass spectroscopy KW - interplanetary dust KW - nondestructive methods KW - ion probe KW - meteorites KW - mineral composition KW - presolar grains KW - Auger spectroscopy KW - oxides KW - NanoSIMS analysis KW - spectroscopy KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51515201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Auger+spectroscopy+as+a+complement+to+NanoSIMS+studies+of+presolar+materials&rft.au=Stadermann%2C+F+J%3BFloss%2C+Christine%3BZinner%2C+E%3BNguyen%2C+A%3BLea%2C+A+S%3BAnonymous&rft.aulast=Stadermann&rft.aufirst=F&rft.date=2005-09-01&rft.volume=40%2C+Suppl.&rft.issue=&rft.spage=A146&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - METSOC 2005 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Auger spectroscopy; chemical analysis; high-resolution methods; interplanetary dust; ion probe; isotopes; mass spectroscopy; matrix; meteorites; mineral composition; NanoSIMS analysis; nondestructive methods; oxides; presolar grains; silicates; spectroscopy ER - TY - RPRT T1 - Hanford Site environmental report for calendar year 2004 AN - 50427257; 2009-051523 JF - Hanford Site environmental report for calendar year 2004 A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. Y1 - 2005/09// PY - 2005 DA - September 2005 VL - PNNL-15222 KW - United States KW - regulations KW - vegetation KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - ecology KW - water pollution KW - Superfund sites KW - soils KW - toxic materials KW - Washington KW - monitoring KW - effluents KW - surface water KW - legislation KW - pollution KW - Hanford Site KW - soil pollution KW - quality control KW - waste disposal KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50427257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2005-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+Site+environmental+report+for+calendar+year+2004&rft.title=Hanford+Site+environmental+report+for+calendar+year+2004&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 22 N1 - Availability - Office of Scientific and Technical Information, Oak Ridge, TN, United States N1 - Document feature - illus. incl. 98 tables, sketch maps N1 - SuppNotes - Includes appendices; in 3 parts N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Automated methods for multiplexed pathogen detection AN - 20120501; 6500808 AB - Detection of pathogenic microorganisms in environmental samples is a difficult process. Concentration of the organisms of interest also co-concentrates inhibitors of many end-point detection methods, notably, nucleic acid methods. In addition, sensitive, highly multiplexed pathogen detection continues to be problematic. The primary function of the BEADS (Biodetection Enabling Analyte Delivery System) platform is the automated concentration and purification of target analytes from interfering substances, often present in these samples, via a renewable surface column. In one version of BEADS, automated immunomagnetic separation (IMS) is used to separate cells from their samples. Captured cells are transferred to a flow-through thermal cycler where PCR, using labeled primers, is performed. PCR products are then detected by hybridization to a DNA suspension array. In another version of BEADS, cell lysis is performed, and community RNA is purified and directly labeled. Multiplexed detection is accomplished by direct hybridization of the RNA to a planar microarray. The integrated IMS /PCR version of BEADS can successfully purify and amplify 10 E. coli O157:H7 cells from river water samples. Multiplexed PCR assays for the simultaneous detection of E. coli O157:H7, Salmonella, and Shigella on bead suspension arrays was demonstrated for the detection of as few as 100 cells for each organism. Results for the RNA version of BEADS are also showing promising results. Automation yields highly purified RNA, suitable for multiplexed detection on microarrays, with microarray detection specificity equivalent to PCR. Both versions of the BEADS platform show great promise for automated pathogen detection from environmental samples. Highly multiplexed pathogen detection using PCR continues to be problematic, but may be required for trace detection in large volume samples. The RNA approach solves the issues of highly multiplexed PCR and provides ''live vs. dead'' capabilities. However, sensitivity of the method will need to be improved for RNA analysis to replace PCR. JF - Journal of Microbiological Methods AU - Straub, T M AU - Dockendorff, B P AU - Quinonez-Diaz, MD AU - Valdez, C O AU - Shutthanandan, JI AU - Tarasevich, B J AU - Grate, J W AU - Bruckner-Lea, C J AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P.O. Box 999, Mail stop K4-12 Richland, WA 99352, United States, timothy.straub@pnl.gov Y1 - 2005/09// PY - 2005 DA - Sep 2005 SP - 303 EP - 316 PB - Elsevier B.V. VL - 62 IS - 3 SN - 0167-7012, 0167-7012 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Rivers KW - immunomagnetic separation KW - Automation KW - Shigella KW - Pathogens KW - nucleic acids KW - RNA KW - Escherichia coli KW - Microorganisms KW - Polymerase chain reaction KW - Primers KW - Purification KW - Salmonella KW - A 01113:General KW - J 02300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20120501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microbiological+Methods&rft.atitle=Automated+methods+for+multiplexed+pathogen+detection&rft.au=Straub%2C+T+M%3BDockendorff%2C+B+P%3BQuinonez-Diaz%2C+MD%3BValdez%2C+C+O%3BShutthanandan%2C+JI%3BTarasevich%2C+B+J%3BGrate%2C+J+W%3BBruckner-Lea%2C+C+J&rft.aulast=Straub&rft.aufirst=T&rft.date=2005-09-01&rft.volume=62&rft.issue=3&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&rft_id=info:doi/10.1016%2Fj.mimet.2005.04.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-01-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Rivers; nucleic acids; RNA; immunomagnetic separation; Microorganisms; Automation; Polymerase chain reaction; Primers; Purification; Pathogens; Escherichia coli; Shigella; Salmonella DO - http://dx.doi.org/10.1016/j.mimet.2005.04.012 ER - TY - JOUR T1 - Effect of chemical reactions on the hydrologic properties of fractured and rubbelized glass media AN - 19705355; 7486467 AB - Understanding the effect of chemical reactions on the hydrologic properties of geological media, such as porosity, permeability and dispersivity, is critical to many natural and engineered sub-surface systems. Influence of glass corrosion (precipitation and dissolution) reactions on fractured and rubbelized (crushed) forms HAN28 and LAWBP1, two candidate waste glass forms for a proposed immobilized low-activity waste (ILAW) disposal facility at the Hanford, WA site, was investigated. Flow and tracer transport experiments were conducted using fractured and rubbelized forms, before and after subjecting them to corrosion using vapor hydration testing (VHT) at 200 degree C temperature and 200 psig pressure, causing the precipitation of alteration products. Data were analyzed using analytical expressions and CXTFIT, a transport parameter optimization code, for the estimation of the hydrologic characteristics before and after VHT. It was found that glass reactions significantly influence the hydrologic properties of ILAW glass media. Hydrologic properties of rubbelized glass decreased due to precipitation reactions, whereas those of fractured glass media increased due to reaction which led to unconfined expansion of fracture aperture. The results are unique and useful to better understand the effect of chemical reactions on the hydrologic properties of fractured and rubbelized stony media in general and glass media in particular. JF - Applied Geochemistry AU - Saripalli, K P AU - Meyer, P D AU - Parker, KE AU - Lindberg, MJ AD - Pacific Northwest National Laboratory, 1318 Sigma V Complex (K6-81), Richland, WA 99352, USA, prasad.saripalli@pnl.gov Y1 - 2005/09// PY - 2005 DA - September 2005 SP - 1677 EP - 1686 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 20 IS - 9 SN - 0883-2927, 0883-2927 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts KW - Hydration KW - Permeability KW - Tracers KW - Chemical Reactions KW - Hydrologic Data KW - Hydrologic Properties KW - Porosity KW - Wastes KW - Fractures KW - Precipitation KW - Chemical reactions KW - USA, Washington, Hanford KW - Corrosion KW - Optimization KW - AQ 00007:Industrial Effluents KW - SW 3050:Ultimate disposal of wastes KW - Q2 09261:General KW - Q5 08501:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19705355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Effect+of+chemical+reactions+on+the+hydrologic+properties+of+fractured+and+rubbelized+glass+media&rft.au=Saripalli%2C+K+P%3BMeyer%2C+P+D%3BParker%2C+KE%3BLindberg%2C+MJ&rft.aulast=Saripalli&rft.aufirst=K&rft.date=2005-09-01&rft.volume=20&rft.issue=9&rft.spage=1677&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2005.04.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Hydration; Tracers; Permeability; Chemical reactions; Porosity; Fractures; Wastes; Corrosion; Hydrologic Properties; Chemical Reactions; Precipitation; Hydrologic Data; Optimization; USA, Washington, Hanford DO - http://dx.doi.org/10.1016/j.apgeochem.2005.04.001 ER - TY - JOUR T1 - Automated Microarray Image Analysis Toolbox for MATLAB AN - 19420341; 6522711 AB - SUMMARY: The Automated Microarray Image Analysis (AMIA) Toolbox for MATLAB is a flexible, open-source, microarray image analysis tool that allows the user to customize analyses of microarray image sets. This tool provides several methods to identify and quantify spot statistics, as well as extensive diagnostic statistics and images to evaluate data quality and array processing. The open, modular nature of AMIA provides access to implementation details and encourages modification and extension of AMIA's capabilities. AVAILABILITY: The AMIA Toolbox is freely available at http://www.pnl.gov/statistics/amia. The AMIA Toolbox requires MATLAB 6.5 (R13) (MathWorks, Inc. Natick, MA), as well as the Statistics Toolbox 4.1 and Image Processing Toolbox 4.1 for MATLAB or more recentversions. CONTACT: amanda.whitenl.gov JF - Bioinformatics AU - White, Amanda M AU - Daly, Don S AU - Willse, Alan R AU - Protic, Miroslava AU - Chandler, Darrell P AD - Statistical Sciences, Pacific Northwest National Laboratory Richland, WA 99352, USA. Biochip Technology Center, Argonne National Laboratory Argonne, IL 60439, USA Y1 - 2005/09/01/ PY - 2005 DA - 2005 Sep 01 SP - 3578 EP - 3579 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 21 IS - 17 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts KW - Statistical analysis KW - Amia KW - Image processing KW - Bioinformatics KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19420341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Automated+Microarray+Image+Analysis+Toolbox+for+MATLAB&rft.au=White%2C+Amanda+M%3BDaly%2C+Don+S%3BWillse%2C+Alan+R%3BProtic%2C+Miroslava%3BChandler%2C+Darrell+P&rft.aulast=White&rft.aufirst=Amanda&rft.date=2005-09-01&rft.volume=21&rft.issue=17&rft.spage=3578&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Amia; Statistical analysis; Image processing; Bioinformatics ER - TY - JOUR T1 - Effects of varied pH, growth rate and temperature using controlled fermentation and batch culture on Matrix Assisted Laser Desorption/Ionization whole cell protein fingerprints AN - 17380053; 6500804 AB - Rapid identification of microorganisms using matrix assisted laser desorption/ionization (MALDI) is a rapidly growing area of research due to the minimal sample preparation, speed of analysis and broad applicability of the technique. This approach relies on expressed biochemical markers, often proteins, to identify microorganisms. Therefore, variations in culture conditions that affect protein expression may limit the ability of MALDI-MS to correctly identify an organism. We have expanded our efforts to investigate the effects of culture conditions on MALDI-MS signatures to specifically examine the effects of pH, growth rate and temperature. Continuous cultures maintained in bioreactors were used to maintain specific growth rates and pH for E. coli HB 101. Despite measurable morphological differences between growth conditions, the MALDI-MS data associated each culture with the appropriate library entry (E. coli HB 101 generated using batch culture on a LB media), independent of pH or growth rate. The lone exception was for a biofilm sample collected from one of the reactors which had no appreciable degree of association with the correct library entry. Within the data set for planktonic organisms, variations in growth rate created the largest variation between fingerprints. The effect of varying growth temperature on Y. enterocolitica was also examined. While the anticipated effects on phenotype were observed, the MALDI-MS technique provided the proper identification. JF - Journal of Microbiological Methods AU - Wunschel, D S AU - Hill, E A AU - McLean, J S AU - Jarman, K AU - Gorby, YA AU - Valentine, N AU - Wahl, K AD - Pacific Northwest National Laboratory, MS P8-08, PO Box 999, Richland WA, 99352, United States, David.Wunschel@pnl.gov Y1 - 2005/09// PY - 2005 DA - Sep 2005 SP - 259 EP - 271 PB - Elsevier B.V. VL - 62 IS - 3 SN - 0167-7012, 0167-7012 KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Temperature effects KW - Growth rate KW - Biochemical markers KW - Desorption KW - Growth conditions KW - Fermentation KW - Cell culture KW - Batch culture KW - Continuous culture KW - Bioreactors KW - Escherichia coli KW - Lasers KW - Biofilms KW - Ionization KW - pH effects KW - Media (culture) KW - A 01113:General KW - W2 32580:Fermentation and process engineering KW - W 30965:Miscellaneous, Reviews KW - W4 320:Cell Culture & Batch Fermentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17380053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microbiological+Methods&rft.atitle=Effects+of+varied+pH%2C+growth+rate+and+temperature+using+controlled+fermentation+and+batch+culture+on+Matrix+Assisted+Laser+Desorption%2FIonization+whole+cell+protein+fingerprints&rft.au=Wunschel%2C+D+S%3BHill%2C+E+A%3BMcLean%2C+J+S%3BJarman%2C+K%3BGorby%2C+YA%3BValentine%2C+N%3BWahl%2C+K&rft.aulast=Wunschel&rft.aufirst=D&rft.date=2005-09-01&rft.volume=62&rft.issue=3&rft.spage=259&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&rft_id=info:doi/10.1016%2Fj.mimet.2005.04.033 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-01-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Growth rate; Temperature effects; Biochemical markers; Desorption; Fermentation; Growth conditions; Cell culture; Batch culture; Continuous culture; Bioreactors; Lasers; Biofilms; pH effects; Ionization; Media (culture); Escherichia coli DO - http://dx.doi.org/10.1016/j.mimet.2005.04.033 ER - TY - JOUR T1 - Effects of different design parameters on the stone-impact resistance of automotive windshields AN - 17216892; 6890150 AB - A constitutive model based on continuum damage mechanics is used to study the stone-impact resistance of automotive windshields. An axisymmetric finite element model is created to simulate the transient dynamic response and impact-induced damage tensors for laminated glass layers subject to stone-impact loading. The windshield glass consists of two glass outer layers laminated by a thin poly(vinyl butyral) (PVB) layer. The constitutive behaviour of the glass layers is simulated using the continuum damage mechanics model with linear damage evolution. The PVB layer is modelled with a linear viscoelastic solid. The model is used to predict and examine damage patterns on different glass surfaces for different windshield designs including variations in ply thickness and curvatures. JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering AU - Sun, X AU - Khaleel, MA AD - Pacific Northwest National Laboratory, Richland, WA, USA Y1 - 2005/09// PY - 2005 DA - Sep 2005 SP - 1059 EP - 1067 VL - 219 IS - 9 SN - 0954-4070, 0954-4070 KW - stone impact resistance KW - Health & Safety Science Abstracts KW - Motor vehicles KW - Impact analysis KW - Glass KW - Design KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17216892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Institution+of+Mechanical+Engineers%2C+Part+D%3A+Journal+of+Automobile+Engineering&rft.atitle=Effects+of+different+design+parameters+on+the+stone-impact+resistance+of+automotive+windshields&rft.au=Sun%2C+X%3BKhaleel%2C+MA&rft.aulast=Sun&rft.aufirst=X&rft.date=2005-09-01&rft.volume=219&rft.issue=9&rft.spage=1059&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Institution+of+Mechanical+Engineers%2C+Part+D%3A+Journal+of+Automobile+Engineering&rft.issn=09544070&rft_id=info:doi/10.1243%2F095440705X34784 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-06-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Motor vehicles; Impact analysis; Glass; Design DO - http://dx.doi.org/10.1243/095440705X34784 ER - TY - JOUR T1 - Simulated sensitivity of seasonal ozone exposure in the Great Lakes region to changes in anthropogenic emissions in the presence of interannual variability AN - 17063256; 6677212 AB - A coupled meteorological and chemical modeling system with a 12-km horizontal grid spacing was used to simulate the evolution of ozone over the Great Lakes region between May and September of 1999 and 2001. The overall temporal and spatial variations in hourly ozone concentrations and ozone exposure from control simulations agreed reasonably well with the observations at most locations with an overall monthly bias computed across all stations ranging from -3.2 to 5.3 ppb, the root mean square difference ranging from 18.2 to 22.2 ppb, and an index of agreement ranging from 0.63 to 0.78. As with the observations, the simulated ozone exposure was higher during most months of the summer of 1999 than during 2001. Sensitivity simulations that increased anthropogenic trace gas emissions were performed to determine the changes in ozone exposure in the presence of meteorological interannual variability. The emission scenario simulations that employed the meteorological conditions of 1999 and increased anthropogenic emissions of NOx and VOCs produced increases in ozone exceeding 80 ppb over the lower peninsula of Michigan, the eastern half of the upper peninsula of Michigan, and over Ontario just north of Lake Superior and Lake Huron. Over the agricultural regions, more ozone between 60 and 80 ppb was produced. The cooler and wetter conditions with more frequent periods of northwesterly flow during the summer of 2001 were not as favorable for ozone production and did not result in increased ozone, despite the increase in anthropogenic emissions. Increases in ozone exceeding 60 ppb occurred only over the lake surfaces and in central Michigan when the meteorological conditions of the summer of 2001 were applied. For both summers, increases in anthropogenic emissions decreased ozone exposure in the immediate vicinity of the largest metropolitan areas. Since anthropogenic emission rate projections depend on assumptions of population, economic development, land-use patterns, and technology, the effect of anthropogenic emission rates on the magnitude and regional-scale distribution of ozone concentrations could be much larger or smaller than indicated by this study. In a subsequent study, the simulated ozone will be used as input to biological models to assess the response of ozone- sensitive tree species in the Great Lakes region to ozone levels produced by various anthropogenic emission scenarios. JF - Atmospheric Environment AU - Fast, Jerome D AU - Heilman, Warren E AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, jerome.fast@pnl.gov Y1 - 2005/09// PY - 2005 DA - September 2005 SP - 5291 EP - 5306 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl] VL - 39 IS - 29 SN - 1352-2310, 1352-2310 KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Regional photochemical modeling KW - Air quality KW - Ozone exposure KW - Boundary layer KW - NOx KW - VOC KW - Water Pollution KW - Resource management KW - Atmospheric pollution models KW - North America, Huron L. KW - Spatial variations KW - Lakes KW - Exposure KW - Economics KW - Atmospheric chemistry models KW - Ozone concentration KW - Seasonal variations KW - Ozone KW - Trace gas emissions KW - Environmental impact KW - Projections KW - Land use KW - Model Studies KW - Numerical simulations KW - Volatile organic compounds KW - Oxides KW - Canada, Ontario KW - Variability KW - Anthropogenic factors KW - Distribution Patterns KW - Ozone production KW - Sulfur dioxide KW - Meteorology KW - Meteorological conditions KW - Temporal variations KW - North America, Superior L. KW - Simulation KW - Economic Development KW - Ozone-volatile organic compounds relationships KW - USA, Michigan KW - Ozone-nitrogen oxides relationships KW - Interannual variability KW - Sensitivity analysis KW - North America, Great Lakes KW - Nitrogen compounds KW - Evolution KW - Q2 09242:Observations and measurements at sea KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - SW 3030:Effects of pollution KW - AQ 00008:Effects of Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17063256?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Simulated+sensitivity+of+seasonal+ozone+exposure+in+the+Great+Lakes+region+to+changes+in+anthropogenic+emissions+in+the+presence+of+interannual+variability&rft.au=Fast%2C+Jerome+D%3BHeilman%2C+Warren+E&rft.aulast=Fast&rft.aufirst=Jerome&rft.date=2005-09-01&rft.volume=39&rft.issue=29&rft.spage=5291&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2005.05.032 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-04-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Spatial variations; Resource management; Temporal variations; Environmental impact; Anthropogenic factors; Nitrogen compounds; Seasonal variations; Oxides; Ozone; Atmospheric pollution models; Trace gas emissions; Land use; Ozone-volatile organic compounds relationships; Interannual variability; Ozone production; Ozone-nitrogen oxides relationships; Numerical simulations; Sensitivity analysis; Atmospheric chemistry models; Ozone concentration; Meteorological conditions; Evolution; Lakes; Sulfur dioxide; Economics; Simulation; Meteorology; Volatile organic compounds; Distribution Patterns; Water Pollution; Variability; Exposure; Economic Development; Projections; Model Studies; USA, Michigan; Canada, Ontario; North America, Great Lakes; North America, Superior L.; North America, Huron L. DO - http://dx.doi.org/10.1016/j.atmosenv.2005.05.032 ER - TY - JOUR T1 - Removal of super(137)Cs from Dissolved Hanford Tank Saltcake by Treatment with IONSIV registered IE-911 AN - 16201793; 6510774 AB - This paper describes the removal of Cs from dissolved Hanford tank saltcake. A composite feed solution was prepared by dissolving archived saltcake samples from Hanford single shell tanks 241-S-101, 241-S-109, 241-S-110, 241-S-111, 241-U-106, and 241-U-109 and adjusting the solution to approximately 5 M Na super(+). This composite feed solution was treated by ion exchange with IONSIV registered IE-911, which effectively reduced the concentration of super(137)Cs to a point of negligible contribution to the overall sample dose. The reduction in sample dose was sufficient for subsequent testing of waste immobilization technologies without significant radiological hazard. Among the major identified species was K super(+), the principle cesium competitor in the ion exchange process, which was present at 0.01 M or about 550 times greater than cesium concentration. Ion exchange using IONSIV registered IE-911 demonstrated high selectivity for cesium and quantitatively depleted super(137)Cs from this feed, with an observed decontamination factor of greater than 30,000. The Cs-depleted saltcake solution also was characterized, and these results are compared to the initial characterization data when possible. As part of this characterization effort, the application of visible spectroscopy for quantifying major anionic components in tank waste was explored, and its potential as a means for directly measuring major bulk components in tank waste is discussed. JF - Separation Science and Technology AU - Rapko, B M AU - Sinkov, SI AU - Levitskaia, T G AD - Pacific Northwest National Laboratory, Richland, WA, USA Y1 - 2005/09// PY - 2005 DA - Sep 2005 SP - 91 EP - 107 VL - 40 IS - 1-3 SN - 0149-6395, 0149-6395 KW - Pollution Abstracts KW - Composite materials KW - Cesium KW - USA, Washington, Hanford KW - Radioactive wastes KW - Decontamination KW - Waste treatment KW - Separation processes KW - Spectroscopy KW - Ion exchange KW - P 8000:RADIATION KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16201793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Separation+Science+and+Technology&rft.atitle=Removal+of+super%28137%29Cs+from+Dissolved+Hanford+Tank+Saltcake+by+Treatment+with+IONSIV+registered+IE-911&rft.au=Rapko%2C+B+M%3BSinkov%2C+SI%3BLevitskaia%2C+T+G&rft.aulast=Rapko&rft.aufirst=B&rft.date=2005-09-01&rft.volume=40&rft.issue=1-3&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Separation+Science+and+Technology&rft.issn=01496395&rft_id=info:doi/10.1081%2FSS-200041765 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Composite materials; Cesium; Radioactive wastes; Decontamination; Separation processes; Waste treatment; Spectroscopy; Ion exchange; USA, Washington, Hanford DO - http://dx.doi.org/10.1081/SS-200041765 ER - TY - JOUR T1 - Removal of Technetium from Hanford Tank Waste Supernates AN - 16201353; 6510779 AB - SuperLig registered 639 ion exchange resin manufactured by IBC Technologies is currently being evaluated for technetium removal from Hanford tank-waste supernates as part of the design for the U.S. Department of Energy/Office of River Protection Project--Waste Treatment Plant. Small-scale testing of the SuperLig registered 639 was performed with four Hanford tank-waste supernates using a dual-column configuration, each containing a 5-mL resin bed. Two tank-waste supernates exhibited a high fraction of nonextractable technetium (nonpertechnetate): AN-102/C-104 was 50% nonpertechnetate, and AP-104 was 69% nonpertechnetate. The pertechnetate removal was excellent for all tested supernates, showing an average of 99% removal for supernates that were essentially all pertechnetate and >86% removal for supernates that contained a high fraction of nonpertechnetate. The column elution was effective using 65 degree C water, resulting in 99% elution on average within 16 bed volumes of eluant. JF - Separation Science and Technology AU - Burgeson, I E AU - Deschane, J R AU - Blanchard, D L AD - Pacific Northwest National Laboratory, Richland, WA, USA Y1 - 2005/09// PY - 2005 DA - Sep 2005 SP - 201 EP - 223 VL - 40 IS - 1-3 SN - 0149-6395, 0149-6395 KW - pertechnetate KW - Pollution Abstracts KW - Underground storage tanks KW - Technetium KW - USA, Washington, Hanford KW - Radioactive wastes KW - Waste treatment KW - Separation processes KW - Ion exchange KW - P 8000:RADIATION KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16201353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Separation+Science+and+Technology&rft.atitle=Removal+of+Technetium+from+Hanford+Tank+Waste+Supernates&rft.au=Burgeson%2C+I+E%3BDeschane%2C+J+R%3BBlanchard%2C+D+L&rft.aulast=Burgeson&rft.aufirst=I&rft.date=2005-09-01&rft.volume=40&rft.issue=1-3&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Separation+Science+and+Technology&rft.issn=01496395&rft_id=info:doi/10.1081%2FSS-200041916 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Underground storage tanks; Technetium; Radioactive wastes; Separation processes; Waste treatment; Ion exchange; USA, Washington, Hanford DO - http://dx.doi.org/10.1081/SS-200041916 ER - TY - JOUR T1 - Palladium(II) chloride complexation; spectrophotometric investigation in aqueous solutions from 5 to 125 degrees C and theoretical insight into Pd-Cl and Pd-OH (sub 2) interactions AN - 51595575; 2006-035964 AB - Monomeric palladium(II) chloro aqua complexes of the form PdCl (sub r) (H (sub 2) O) (sub 4-r) (super 2-r) (r = [0,4]) were studied both experimentally and theoretically to gain insight on both the stabilities and the nature of palladium-chloride interactions. The thermodynamic stabilities of these complexes were studied in aqueous solutions from 5 to 125 degrees C with UV-vis spectrophotometry using a quartz flow-through cell. Tentative measurements up to 200 degrees C were also carried out in pressurised titanium and gold-lined optical cells but revealed important losses in soluble palladium. The strong ligand-to-metal charge transfer bands of the palladium complexes below 350 nm were used to constrain the stepwise thermodynamic formation constants at each temperature, using results of singular value decompositions of the spectra over a broad range of palladium:chloride ratios and wavelengths. The temperature-dependent constants were used to obtain changes in enthalpy and in entropy for each reaction. The thermodynamic stabilities of PdCl(H (sub 2) O) (sub 3) (super +) , PdCl (sub 2) (H (sub 2) O) (sub 2) (super 0) , and PdCl (sub 3) (H (sub 2) O) (super -) are larger at higher temperatures, whilst the one of PdCl (sub 4) (super 2-) is smaller. All changes in entropies are positive for the former three species, but negative for the latter, presumably due to a larger solvent reorganisation around the doubly charged PdCl (sub 4) (super 2-) species. The room temperature thermodynamic values derived from this study are also in agreement with previously published calorimetric data. Theoretical calculations on the intramolecular distributions of electrons in the different palladium(II) chloro aqua complexes, using the methods of atoms in molecules and of the electron localisation function, showed Pd-Cl and Pd-OH (sub 2) interactions to be of largely closed-shell/ionic nature. These interactions induce an important distortion of the outer core shell electrons of Pd, as well as stable accumulations of electrons between adjacent Pd-Cl and Pd-OH (sub 2) bonds known as ligand opposed core charge concentrations. JF - Geochimica et Cosmochimica Acta AU - Boily, Jean-Francois AU - Seward, T M Y1 - 2005/08// PY - 2005 DA - August 2005 SP - 3773 EP - 3789 PB - Pergamon, Oxford VL - 69 IS - 15 SN - 0016-7037, 0016-7037 KW - halides KW - palladium KW - experimental studies KW - complexing KW - data processing KW - aqueous solutions KW - solubility KW - platinum group KW - temperature KW - measurement KW - enthalpy KW - chemical reactions KW - phase equilibria KW - metals KW - EXAFS data KW - chlorides KW - ultraviolet spectra KW - spectra KW - thermodynamic properties KW - chemical composition KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51595575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Palladium%28II%29+chloride+complexation%3B+spectrophotometric+investigation+in+aqueous+solutions+from+5+to+125+degrees+C+and+theoretical+insight+into+Pd-Cl+and+Pd-OH+%28sub+2%29+interactions&rft.au=Boily%2C+Jean-Francois%3BSeward%2C+T+M&rft.aulast=Boily&rft.aufirst=Jean-Francois&rft.date=2005-08-01&rft.volume=69&rft.issue=15&rft.spage=3773&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2005.03.015 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 111 N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; chemical composition; chemical reactions; chlorides; complexing; data processing; enthalpy; EXAFS data; experimental studies; geochemistry; halides; measurement; metals; palladium; phase equilibria; platinum group; solubility; spectra; temperature; thermodynamic properties; ultraviolet spectra DO - http://dx.doi.org/10.1016/j.gca.2005.03.015 ER - TY - JOUR T1 - Preparation of 20- mu m-i.d. Silica-Based Monolithic Columns and Their Performance for Proteomics Analyses AN - 19409523; 6492416 AB - We describe the preparation and performance of high-efficiency 70 cm x 20 mu m i.d. silica-based monolithic capillary LC columns. The monolithic columns at a mobile-phase pressure of 5000 psi provide flow rates of similar to 40 nL/min at a linear velocity of similar to 0.24 cm/s. The columns provide a separation peak capacity of similar to 420 in conjunction with both on-line coupling with microsolid-phase extraction and nanoelectrospray ionization-mass spectrometry. Performance was evaluated using a Shewanella oneidensis tryptic digest, and similar to 15-amol detection limits for peptides were obtained using a conventional ion trap and MS/MS for peptide identification. The sensitivity and separation efficiency enabled the identification of 2367 different peptides covering 855 distinct S. oneidensis proteins from a 2.5- mu g tryptic digest sample in a single 10-h analysis. The number of identified peptides and proteins approximately doubled when the effective separation time was extended from 200 to 600 min. The number of identified peptides increased from 32 to 390 as the injection amount was increased from 0.5 to 100 ng. Both the run-to-run and column-to-column reproducibility for proteomic analyses were also evaluated. JF - Analytical Chemistry (Washington) AU - Luo, Q AU - Shen, Y AU - Hixson, K K AU - Zhao, R AU - Yang, F AU - Moore, R J AU - Mottaz, H M AU - Smith, R D AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA Y1 - 2005/08/01/ PY - 2005 DA - 2005 Aug 01 SP - 5028 EP - 5035 VL - 77 IS - 15 SN - 0003-2700, 0003-2700 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Shewanella oneidensis KW - proteomics KW - Pressure KW - Spectrometry KW - W 30940:Products KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19409523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Preparation+of+20-+mu+m-i.d.+Silica-Based+Monolithic+Columns+and+Their+Performance+for+Proteomics+Analyses&rft.au=Luo%2C+Q%3BShen%2C+Y%3BHixson%2C+K+K%3BZhao%2C+R%3BYang%2C+F%3BMoore%2C+R+J%3BMottaz%2C+H+M%3BSmith%2C+R+D&rft.aulast=Luo&rft.aufirst=Q&rft.date=2005-08-01&rft.volume=77&rft.issue=15&rft.spage=5028&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/10.1021%2Fac050454k LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - proteomics; Pressure; Spectrometry; Shewanella oneidensis DO - http://dx.doi.org/10.1021/ac050454k ER - TY - JOUR T1 - Structures and stabilities of Cd(II) and Cd(II)-phthalate complexes at the goethite/water interface AN - 17197009; 6883676 AB - The complexation of Cd(II) and Cd(II)-phthalate at the goethite/water interface were investigated by EXAFS and IR spectroscopy, by batch adsorption experiments and by potentiometric titrations at 298.15 K. The EXAFS spectra showed Cd(II) to form only inner-sphere corner-sharing complexes with the goethite surface sites in the presence and absence of phthalate. EXAFS spectra also showed the presence of Cd(II)-chloride complexes in 0.1 mol/L NaCl. IR spectra also showed phthalate to form (1) an inner-sphere complex with adsorbed corner-sharing Cd(II) surface complexes in the pH 3.5 to 9.5 and (2) an outer- sphere complex with the same type of corner-sharing Cd(II) complex however at pH > 6, in addition to the inner- and outer-sphere complexes of phthalate reported in a previous study. The potentiometric titration and the batch adsorption data were used to constrain the formation constants of the different Cd(II)-phthalate surface complexes on the dominant {110} and the {001} planes of the goethite. The models were carried out with the Charge Distribution Multisite Complexation model coupled to the Three Plane Model and can predict the molecular-scale speciation of cadmium and phthalate in the presence of goethite. Cd(II) adsorption models calibrated on a 90 m super(2)/g goethite also could accurately predict experimental data for a 37 m super(2)/g goethite of slightly different basic charging properties. Associate editor: J. R. RustadAuthor to whom correspondence should be addressed JF - Geochimica et Cosmochimica Acta AU - Boily, Jean-Francois AU - Sjoeberg, Staffan AU - Persson, Per AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, boily@pnl.gov Y1 - 2005/08// PY - 2005 DA - August 2005 SP - 3219 EP - 3235 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK, [mailto:nlinfo-f@elsevier.nl] VL - 69 IS - 13 SN - 0016-7037, 0016-7037 KW - Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Speciation KW - Experimental Data KW - Interfaces KW - Hydrogen Ion Concentration KW - Spectroscopy KW - Goethite KW - Model Studies KW - Structure KW - Spheres KW - Titration KW - Adsorption KW - Cadmium KW - SW 3010:Identification of pollutants KW - Q2 09187:Geochemistry of sediments KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17197009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Structures+and+stabilities+of+Cd%28II%29+and+Cd%28II%29-phthalate+complexes+at+the+goethite%2Fwater+interface&rft.au=Boily%2C+Jean-Francois%3BSjoeberg%2C+Staffan%3BPersson%2C+Per&rft.aulast=Boily&rft.aufirst=Jean-Francois&rft.date=2005-08-01&rft.volume=69&rft.issue=13&rft.spage=3219&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.12.013 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Spheres; Titration; Goethite; Experimental Data; Speciation; Structure; Interfaces; Adsorption; Hydrogen Ion Concentration; Cadmium; Spectroscopy; Model Studies DO - http://dx.doi.org/10.1016/j.gca.2004.12.013 ER - TY - JOUR T1 - Development of cellular absorptive tracers for quantitative characterization of microbial mass in flow systems AN - 17058571; 6689254 AB - We report a new cellular absorptive tracer (CAT) method for simple, nondestructive characterization of bacterial mass in flow systems. Results show that adsorption of a CAT molecule into the cellular mass results in its slowdown during flow, which is an accurate quantitative measurement of biomass quantity and distribution. No such methods are currently available for quantitative characterization of cell mass. JF - Research in Microbiology AU - Saripalli, K P AU - Brown, C F AU - Lindberg, MJ AD - Battelle Pacific Northwest National Laboratory, 1318 Sigma V (K6-81), Richland, WA 99352, USA, prasad.saripalli@pnl.gov Y1 - 2005/08// PY - 2005 DA - Aug 2005 SP - 790 EP - 792 PB - Editions Scientifiques et Medicales Elsevier, 23 rue Linois 75724 Paris cedex 15 France, [URL:http://www.elsevier.fr] VL - 156 IS - 7 SN - 0923-2508, 0923-2508 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Cellular absorptive tracer KW - Flow system KW - Bacterial mass KW - Quantitative characterization KW - Tracers KW - Adsorption KW - Biomass KW - A 01116:Bacteria KW - J 02704:Enumeration UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17058571?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Research+in+Microbiology&rft.atitle=Development+of+cellular+absorptive+tracers+for+quantitative+characterization+of+microbial+mass+in+flow+systems&rft.au=Saripalli%2C+K+P%3BBrown%2C+C+F%3BLindberg%2C+MJ&rft.aulast=Saripalli&rft.aufirst=K&rft.date=2005-08-01&rft.volume=156&rft.issue=7&rft.spage=790&rft.isbn=&rft.btitle=&rft.title=Research+in+Microbiology&rft.issn=09232508&rft_id=info:doi/10.1016%2Fj.resmic.2005.03.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-03-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Tracers; Adsorption; Biomass DO - http://dx.doi.org/10.1016/j.resmic.2005.03.012 ER - TY - JOUR T1 - Parallel simulations of aerosol influence on clouds using cloud-resolving and single-column models AN - 1654687782; 21162401 AB - The influence of the cloud condensation nucleus (CCN) concentration on the properties of low-level clouds under the conditions observed over the north central Oklahoma on 24-25 September 1997 is examined in a series of 18-hour simulations using a single-column model (SCM) and a cloud-resolving model (CM). Both models predict higher droplet concentration, smaller droplet size, and larger liquid water path in a "polluted" case (CCN concentration = 1000 cm super(-3)) than in a clean case (CCN concentration = 250 cm super(-3)), suggesting that the first and the second indirect effects act in unison under the considered conditions. A comparison of the simulations using the SCM and CM with the same two-moment bulk microphysics parameterization highlights the dominant effect of the dynamical framework on both microphysical and macrophysical properties of modeled cloud. This effect is much stronger than the variations in each of the models resulting from changing CCN concentrations. However, the relative liquid water path sensitivity to CCN concentration is similar between the SCM and CM simulations. The CM simulations with the size-resolved and the two-moment bulk microphysical parameterization yield nearly identical structure of boundary layer. Even though these simulations are in much closer agreement with each other than they are with the SCM results, the variance from the microphysics treatment is still comparable to the effect of quadrupling CCN concentration. JF - Journal of Geophysical Research: Atmospheres AU - Ovtchinnikov, Mikhail AU - Ghan, Steven J AD - Pacific Northwest National Laboratory, Richland, Washington, USA. Y1 - 2005/08// PY - 2005 DA - Aug 2005 SP - [np] VL - 110 IS - D15 SN - 0148-0227, 0148-0227 KW - Pollution Abstracts KW - USA, Oklahoma KW - Clouds KW - Sensitivity KW - Aerosols KW - Boundary layers KW - Simulation KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1654687782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research%3A+Atmospheres&rft.atitle=Parallel+simulations+of+aerosol+influence+on+clouds+using+cloud-resolving+and+single-column+models&rft.au=Ovtchinnikov%2C+Mikhail%3BGhan%2C+Steven+J&rft.aulast=Ovtchinnikov&rft.aufirst=Mikhail&rft.date=2005-08-01&rft.volume=110&rft.issue=D15&rft.spage=%5Bnp%5D&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research%3A+Atmospheres&rft.issn=01480227&rft_id=info:doi/10.1029%2F2004JD005088 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-02-01 N1 - Last updated - 2015-02-12 N1 - SubjectsTermNotLitGenreText - Clouds; Sensitivity; Aerosols; Boundary layers; Simulation; USA, Oklahoma DO - http://dx.doi.org/10.1029/2004JD005088 ER - TY - JOUR T1 - The Role of Bacterial Exopolymers in Metal Sorption and Reduction AN - 1022562770; 14656067 AB - Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005 JF - Microscopy and Microanalysis AU - Dohnalkova, A AU - Marshall, M J AU - Kennedy, D W AU - Gorby, Y A AU - Shi, L AU - Beliaev, A AU - Apkarian, R AU - Fredrickson, J K AD - Pacific Northwest National Laboratory, Richland, Washington Y1 - 2005/08// PY - 2005 DA - Aug 2005 SP - 116 EP - 117 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU UK VL - 11 IS - S02 SN - 1431-9276, 1431-9276 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Metals KW - Microscopy KW - Sorption KW - Bacteria KW - A 01490:Miscellaneous KW - J 02490:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1022562770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microscopy+and+Microanalysis&rft.atitle=The+Role+of+Bacterial+Exopolymers+in+Metal+Sorption+and+Reduction&rft.au=Dohnalkova%2C+A%3BMarshall%2C+M+J%3BKennedy%2C+D+W%3BGorby%2C+Y+A%3BShi%2C+L%3BBeliaev%2C+A%3BApkarian%2C+R%3BFredrickson%2C+J+K&rft.aulast=Dohnalkova&rft.aufirst=A&rft.date=2005-08-01&rft.volume=11&rft.issue=S02&rft.spage=116&rft.isbn=&rft.btitle=&rft.title=Microscopy+and+Microanalysis&rft.issn=14319276&rft_id=info:doi/10.1017%2FS1431927605506688 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-06-01 N1 - Last updated - 2013-03-22 N1 - SubjectsTermNotLitGenreText - Sorption; Metals; Microscopy; Bacteria DO - http://dx.doi.org/10.1017/S1431927605506688 ER - TY - CPAPER T1 - Context Detection and Decision Making in Cells T2 - 2005 ASCB Summer Meeting on Engineering Cell Biology: The Cell In Context AN - 40006168; 3982017 JF - 2005 ASCB Summer Meeting on Engineering Cell Biology: The Cell In Context AU - Wiley, H Steven Y1 - 2005/07/15/ PY - 2005 DA - 2005 Jul 15 KW - Decision making KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40006168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+ASCB+Summer+Meeting+on+Engineering+Cell+Biology%3A+The+Cell+In+Context&rft.atitle=Context+Detection+and+Decision+Making+in+Cells&rft.au=Wiley%2C+H+Steven&rft.aulast=Wiley&rft.aufirst=H&rft.date=2005-07-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+ASCB+Summer+Meeting+on+Engineering+Cell+Biology%3A+The+Cell+In+Context&rft.issn=&rft_id=info:doi/ L2 - http://www.ascb.org/meetings/summer05/ecb/index.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Molecularly imprinted polymers for selective analysis of chemical warfare surrogate and nuclear signature compounds in complex matrices. AN - 68504968; 16117000 AB - This paper describes the preparation and evaluation of molecularly imprinted polymers (MIPs) that display specificity toward diisopropyl methylphosphonate (DIMP) and tributyl phosphate (TBP). Polymer activity was assessed by solid-phase extraction and high-performance liquid chromatography experiments. Both DIMP- and TBP-specific vinylpyridine-based MIPs selectively retained their targets relative to a non-imprinted control. Proof-of-principle experiments demonstrated highly selective analysis of the targets from fortified complex matrix samples (diesel fuel, gasoline, and air extract concentrate). The retained MIP fractions gave near quantitative recovery of the target analytes with very low matrix background content. The same fraction from the control sorbent recovered only about half of the analyte and tended to be less pure. JF - Journal of separation science AU - Harvey, Scott D AD - Pacific Northwest National Laboratory, Richland, WA 9352, USA. scott.harvey@pnl.gov Y1 - 2005/07// PY - 2005 DA - July 2005 SP - 1221 EP - 1230 VL - 28 IS - 11 SN - 1615-9306, 1615-9306 KW - Chemical Warfare Agents KW - 0 KW - Organophosphates KW - Organophosphorus Compounds KW - Pyridines KW - Vinyl Compounds KW - diisopropyl methylphosphonate KW - 56V3OG5DC7 KW - tributyl phosphate KW - 95UAS8YAF5 KW - Index Medicus KW - Organophosphorus Compounds -- analysis KW - Chromatography, Gas KW - Organophosphates -- analysis KW - Chromatography, High Pressure Liquid KW - Chemical Warfare Agents -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68504968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+separation+science&rft.atitle=Molecularly+imprinted+polymers+for+selective+analysis+of+chemical+warfare+surrogate+and+nuclear+signature+compounds+in+complex+matrices.&rft.au=Harvey%2C+Scott+D&rft.aulast=Harvey&rft.aufirst=Scott&rft.date=2005-07-01&rft.volume=28&rft.issue=11&rft.spage=1221&rft.isbn=&rft.btitle=&rft.title=Journal+of+separation+science&rft.issn=16159306&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2006-05-17 N1 - Date created - 2005-08-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Enhanced radionuclide immobilization and flow path modifications by dissolution and secondary precipitates. AN - 68004054; 15998863 AB - Caustic radioactive wastes that have leaked at Hanford Site (Richland, WA) induce mineral dissolution and subsequent secondary precipitation that influence the fate and transport of contaminants present in the waste solutions. The effects of secondary mineral precipitates, formed after contacting solids with simulated caustic wastes, on the flow path changes and radionuclide immobilization were investigated by reacting quartz, a mixture of quartz and biotite, and a Hanford sediment (Warden soil: coarse-silty, mixed, superactive, mesic Xeric Haplocambids) with simulated caustic tank waste solution. Continuous Si dissolution and concomitant secondary mineral precipitation were the principal reactions observed in both batch and flow-through tests. Nitrate-cancrinite was the dominant secondary precipitate on mineral surfaces after 3- to 10-d reaction times in batch experiments. X-ray microtomography images of a reacted quartz column revealed that secondary precipitates cemented quartz grains together and modified pore geometry in the center of the column. Along the circumference of the packed column, however, quartz dissolution continuously occurred, suggesting that wastes that leaked from buried tanks in the past likely did not migrate vertically as modeled in risk assessments but rather the pathways likely changed to be dominantly horizontal on precipitation of secondary precipitate phases in the Hanford vadose zone. Based on batch equilibrium sorption results on the reacted sediments, the dominant secondary precipitates (cancrinites) on the mineral surfaces enhanced the sorption capacity of typical Hanford sediment for radionuclides 129I(-I), 79Se(VI), 99Tc(VII), and 90Sr(II), all of which are of major concern at the Hanford Site. JF - Journal of environmental quality AU - Um, Wooyong AU - Serne, R Jeffrey AU - Yabusaki, Steven B AU - Owen, Antoinette T AD - Pacific Northwest National Laboratory, P.O. Box 999, MS P7-22, Richland, WA 99354, USA. wooyong.um@pnl.gov PY - 2005 SP - 1404 EP - 1414 VL - 34 IS - 4 SN - 0047-2425, 0047-2425 KW - Radioactive Waste KW - 0 KW - Soil Pollutants, Radioactive KW - Water Pollutants, Radioactive KW - Quartz KW - 14808-60-7 KW - Index Medicus KW - Solubility KW - Chemical Precipitation KW - Adsorption KW - Quartz -- chemistry KW - Water Pollutants, Radioactive -- analysis KW - Soil Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/68004054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+quality&rft.atitle=Enhanced+radionuclide+immobilization+and+flow+path+modifications+by+dissolution+and+secondary+precipitates.&rft.au=Um%2C+Wooyong%3BSerne%2C+R+Jeffrey%3BYabusaki%2C+Steven+B%3BOwen%2C+Antoinette+T&rft.aulast=Um&rft.aufirst=Wooyong&rft.date=2005-07-01&rft.volume=34&rft.issue=4&rft.spage=1404&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+quality&rft.issn=00472425&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-11-01 N1 - Date created - 2005-07-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Ultrasensitive voltammetric detection of trace heavy metal ions using carbon nanotube nanoelectrode array. AN - 67949767; 15965535 AB - We describe an ultrasensitive voltammetric detection of trace heavy metal ions using nanoelectrode arrays (NEAs) that are based on low-site density carbon nanotubes (CNTs). The NEAs were prepared by sealing the side-walls of CNTs with an epoxy passive layer that reduces the current leakage and eliminates the electrode capacitance, leading to a low background current. This provides a high signal-to-noise ratio. The CNTs-NEAs coated with a bismuth film were used successfully for voltammetric detection of trace cadmium(II) and lead(II) at the sub-ppb level. The detection limit of 0.04 microg L(-1) was obtained under optimum experimental conditions. The attractive behavior of the new carbon NEA sensing platform holds great promise for onsite environmental monitoring and biomonitoring of toxic metals. JF - The Analyst AU - Liu, Guodong AU - Lin, Yuehe AU - Tu, Yi AU - Ren, Zhifeng AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, USA. Y1 - 2005/07// PY - 2005 DA - July 2005 SP - 1098 EP - 1101 VL - 130 IS - 7 SN - 0003-2654, 0003-2654 KW - Metals, Heavy KW - 0 KW - Nanotubes, Carbon KW - Index Medicus KW - Electrochemistry KW - Environmental Monitoring -- methods KW - Nanotechnology -- methods KW - Metals, Heavy -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67949767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Analyst&rft.atitle=Ultrasensitive+voltammetric+detection+of+trace+heavy+metal+ions+using+carbon+nanotube+nanoelectrode+array.&rft.au=Liu%2C+Guodong%3BLin%2C+Yuehe%3BTu%2C+Yi%3BRen%2C+Zhifeng&rft.aulast=Liu&rft.aufirst=Guodong&rft.date=2005-07-01&rft.volume=130&rft.issue=7&rft.spage=1098&rft.isbn=&rft.btitle=&rft.title=The+Analyst&rft.issn=00032654&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-11-14 N1 - Date created - 2005-06-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Ice age Floods National Geologic Trail AN - 51645677; 2005-074700 JF - GSA Today AU - Bjornstad, Bruce Y1 - 2005/07// PY - 2005 DA - July 2005 SP - 22 PB - Geological Society of America (GSA), Boulder, CO VL - 15 IS - 7 SN - 1052-5173, 1052-5173 KW - United States KW - U. S. National Park Service KW - lakes KW - government agencies KW - national parks KW - eastern Washington KW - Clark Fork KW - Cenozoic KW - Oregon KW - Frenchman Coulee KW - jokulhlaups KW - Pacific Coast KW - paleofloods KW - glacial lakes KW - Idaho KW - Washington KW - Quaternary KW - Columbia River KW - legislation KW - Lake Missoula KW - Ice Age Floods National Geologic Trail KW - glacial features KW - public lands KW - Montana KW - Pleistocene KW - Channeled Scabland KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51645677?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=GSA+Today&rft.atitle=Ice+age+Floods+National+Geologic+Trail&rft.au=Bjornstad%2C+Bruce&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2005-07-01&rft.volume=15&rft.issue=7&rft.spage=22&rft.isbn=&rft.btitle=&rft.title=GSA+Today&rft.issn=10525173&rft_id=info:doi/10.1130%2F1052-5173%282005%29015%2822%3AIAFNGT%292.0.CO%3B2 L2 - http://www.gsajournals.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cenozoic; Channeled Scabland; Clark Fork; Columbia River; eastern Washington; Frenchman Coulee; glacial features; glacial lakes; government agencies; Ice Age Floods National Geologic Trail; Idaho; jokulhlaups; Lake Missoula; lakes; legislation; Montana; national parks; Oregon; Pacific Coast; paleofloods; Pleistocene; public lands; Quaternary; U. S. National Park Service; United States; Washington DO - http://dx.doi.org/10.1130/1052-5173(2005)015(22:IAFNGT)2.0.CO;2 ER - TY - JOUR T1 - Analysis of precipitates from reactions of hyperalkaline solutions with soluble silica AN - 51620644; 2006-020390 AB - Cancrinite, sodalite, and zeolite A have been found to form upon contacting hyperalkaline simulated tank waste (STW) with vadose zone sediments from the Hanford Reservation. Here, soluble silica and STW are used to study mineral formation and transformation. Two Hanford sediment fractions (diameters 50 mu m instead of soluble silica) are also used as silica sources for comparison. A series of batch experiments at 50 degrees C and 25 days duration were conducted by reacting 0.026 mol/kg soluble Si with 6 different STW solutions. The STW solutions differed in NaOH and Al concentrations. Cancrinite, sodalite, and zeolite A formed when soluble Si was used as the Si source. The minerals were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and (super 27) Al and (super 29) Si magic-angle spinning nuclear magnetic resonance (MAS-NMR). Larger NaOH and Al concentrations favored formation of the more compact structures of cancrinite and sodalite. At larger NaOH concentration more Al for Si substitution occurred in the tetrahedral sites. A greater Al(4)/Al(6) ratio in the solids was found for the higher Si/Al ratio solutions based on NMR results. Mixtures of cancrinite and sodalite were characterized by particles with lepispheric morphology. At low Al concentration, increasing NaOH resulted in distinct hexagonal, prismatic particles common to crystalline cancrinite. At low Al/Si ratio, the characteristic cubic morphology of zeolite was observed in addition to cancrinite and sodalite. JF - Applied Geochemistry AU - Mashal, Kholoud AU - Harsh, James B AU - Flury, Markus AU - Felmy, Andrew R Y1 - 2005/07// PY - 2005 DA - July 2005 SP - 1357 EP - 1367 PB - Pergamon, Oxford-New York-Beijing VL - 20 IS - 7 SN - 0883-2927, 0883-2927 KW - United States KW - silicates KW - X-ray diffraction data KW - unsaturated zone KW - mass spectra KW - aqueous solutions KW - simulation KW - NMR spectra KW - environmental effects KW - infrared spectra KW - ground water KW - FTIR spectra KW - chemical reactions KW - water-rock interaction KW - silica KW - sodalite group KW - framework silicates KW - spectra KW - thermodynamic properties KW - chemical composition KW - water pollution KW - geochemistry KW - chemical ratios KW - Washington KW - pollution KW - Hanford Site KW - solubility KW - hydrochemistry KW - MAS NMR spectra KW - alkalic composition KW - models KW - ICP mass spectra KW - precipitation KW - sodalite KW - SEM data KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51620644?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Analysis+of+precipitates+from+reactions+of+hyperalkaline+solutions+with+soluble+silica&rft.au=Mashal%2C+Kholoud%3BHarsh%2C+James+B%3BFlury%2C+Markus%3BFelmy%2C+Andrew+R&rft.aulast=Mashal&rft.aufirst=Kholoud&rft.date=2005-07-01&rft.volume=20&rft.issue=7&rft.spage=1357&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2005.01.015 L2 - http://www.sciencedirect.com/science/journal/08832927 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkalic composition; aqueous solutions; chemical composition; chemical ratios; chemical reactions; environmental effects; framework silicates; FTIR spectra; geochemistry; ground water; Hanford Site; hydrochemistry; ICP mass spectra; infrared spectra; MAS NMR spectra; mass spectra; models; NMR spectra; pollution; precipitation; SEM data; silica; silicates; simulation; sodalite; sodalite group; solubility; spectra; thermodynamic properties; United States; unsaturated zone; Washington; water pollution; water-rock interaction; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.apgeochem.2005.01.015 ER - TY - JOUR T1 - Radiolytic H (sub 2) in continental crust; nuclear power for deep subsurface microbial communities AN - 51618956; 2006-021034 AB - H (sub 2) is probably the most important substrate for terrestrial subsurface lithoautotrophic microbial communities. Abiotic H (sub 2) generation is an essential component of subsurface ecosystems truly independent of surface photosynthesis. Here we report that H (sub 2) concentrations in fracture water collected from deep siliclastic and volcanic rock units in the Witwatersrand Basin, South Africa, ranged up to two molar, a value far greater than observed in shallow aquifers or marine sediments. The high H (sub 2) concentrations are consistent with that predicted by radiolytic dissociation of H (sub 2) O during radioactive decay of U, Th, and K in the host rock and the observed He concentrations. None of the other known H (sub 2) -generating mechanisms can account for such high H (sub 2) abundance either because of the positive free energy imposed by the high H (sub 2) concentration or pH or because of the absence of required mineral phases. The radiolytic H (sub 2) is consumed by methanogens and abiotic hydrocarbon synthesis. Our calculations indicate that radiolytic H (sub 2) production is a ubiquitous and virtually limitless source of energy for deep crustal chemolithoautotrophic ecosystems. JF - Geochemistry, Geophysics, Geosystems - G3 AU - Lin, Li-Hung AU - Hall, James AU - Lippmann-Pipke, Johanna AU - Ward, Julie A AU - Sherwood Lollar, Barbara AU - DeFlaun, Mary AU - Rothmel, Randi AU - Moser, Duane AU - Gihring, Thomas M AU - Mislowack, Bianca AU - Onstott, T C Y1 - 2005/07// PY - 2005 DA - July 2005 SP - 13 PB - American Geophysical Union and The Geochemical Society VL - 6 IS - 7 KW - volcanic rocks KW - isotopes KW - igneous rocks KW - siliciclastics KW - radioactive decay KW - ecosystems KW - continental crust KW - radioactive isotopes KW - South Africa KW - radiolysis KW - geochemistry KW - Witwatersrand KW - geomicrobiology KW - alkali metals KW - biogenic processes KW - metals KW - hydrogen KW - Southern Africa KW - bacteria KW - potassium KW - thorium KW - Africa KW - uranium KW - actinides KW - crust KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51618956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemistry%2C+Geophysics%2C+Geosystems+-+G3&rft.atitle=Radiolytic+H+%28sub+2%29+in+continental+crust%3B+nuclear+power+for+deep+subsurface+microbial+communities&rft.au=Lin%2C+Li-Hung%3BHall%2C+James%3BLippmann-Pipke%2C+Johanna%3BWard%2C+Julie+A%3BSherwood+Lollar%2C+Barbara%3BDeFlaun%2C+Mary%3BRothmel%2C+Randi%3BMoser%2C+Duane%3BGihring%2C+Thomas+M%3BMislowack%2C+Bianca%3BOnstott%2C+T+C&rft.aulast=Lin&rft.aufirst=Li-Hung&rft.date=2005-07-01&rft.volume=6&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geochemistry%2C+Geophysics%2C+Geosystems+-+G3&rft.issn=1525-2027&rft_id=info:doi/10.1029%2F2004GC000907 L2 - http://g-cubed.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 41 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; Africa; alkali metals; bacteria; biogenic processes; continental crust; crust; ecosystems; geochemistry; geomicrobiology; hydrogen; igneous rocks; isotopes; metals; microorganisms; potassium; radioactive decay; radioactive isotopes; radiolysis; siliciclastics; South Africa; Southern Africa; thorium; uranium; volcanic rocks; Witwatersrand DO - http://dx.doi.org/10.1029/2004GC000907 ER - TY - JOUR T1 - Cd(II) sorption onto chemically modified Australian coals AN - 51524823; 2006-086781 JF - Fuel (Guildford) AU - Burns, C A AU - Boily, Jean Francois AU - Crawford, R J AU - Harding, I H Y1 - 2005/07// PY - 2005 DA - July 2005 SP - 1653 EP - 1660 PB - Elsevier Science, Oxford VL - 84 IS - 12-13 SN - 0016-2361, 0016-2361 KW - Loy Yang Mine KW - sorption KW - aqueous solutions KW - infrared spectra KW - Collie Mine KW - FTIR spectra KW - rank KW - sedimentary rocks KW - Norwich Park Mine KW - coal KW - cadmium KW - Australia KW - spectra KW - chemical composition KW - geochemistry KW - ammonia compound KW - mines KW - Australasia KW - coal mines KW - properties KW - adsorption KW - metals KW - mathematical methods KW - transformations KW - Mount Arthur Mine KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51524823?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Fuel+%28Guildford%29&rft.atitle=Cd%28II%29+sorption+onto+chemically+modified+Australian+coals&rft.au=Burns%2C+C+A%3BBoily%2C+Jean+Francois%3BCrawford%2C+R+J%3BHarding%2C+I+H&rft.aulast=Burns&rft.aufirst=C&rft.date=2005-07-01&rft.volume=84&rft.issue=12-13&rft.spage=1653&rft.isbn=&rft.btitle=&rft.title=Fuel+%28Guildford%29&rft.issn=00162361&rft_id=info:doi/10.1016%2Fj.fuel.2005.02.017 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5726&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=4e523308cb5ed36d049b9168d774092c LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - FUELAC N1 - SubjectsTermNotLitGenreText - adsorption; ammonia compound; aqueous solutions; Australasia; Australia; cadmium; chemical composition; coal; coal mines; Collie Mine; FTIR spectra; geochemistry; infrared spectra; Loy Yang Mine; mathematical methods; metals; mines; Mount Arthur Mine; Norwich Park Mine; properties; rank; sedimentary rocks; sorption; spectra; transformations DO - http://dx.doi.org/10.1016/j.fuel.2005.02.017 ER - TY - JOUR T1 - Electron density distribution and bond critical point properties for forsterite, Mg (sub 2) SiO (sub 4) , determined with synchrotron single crystal X-ray diffraction data AN - 51366626; 2007-109665 JF - Physics and Chemistry of Minerals AU - Kirfel, A AU - Lippmann, T AU - Blaha, P AU - Schwarz, K AU - Cox, D F AU - Rosso, K M AU - Gibbs, G V Y1 - 2005/07// PY - 2005 DA - July 2005 SP - 301 EP - 313 PB - Springer-Verlag, Berlin - New York VL - 32 IS - 4 SN - 0342-1791, 0342-1791 KW - silicates KW - refinement KW - X-ray diffraction data KW - olivine group KW - crystal structure KW - bonding KW - deformation KW - forsterite KW - synchrotron radiation KW - nesosilicates KW - single-crystal method KW - orthosilicates KW - electron density KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51366626?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Electron+density+distribution+and+bond+critical+point+properties+for+forsterite%2C+Mg+%28sub+2%29+SiO+%28sub+4%29+%2C+determined+with+synchrotron+single+crystal+X-ray+diffraction+data&rft.au=Kirfel%2C+A%3BLippmann%2C+T%3BBlaha%2C+P%3BSchwarz%2C+K%3BCox%2C+D+F%3BRosso%2C+K+M%3BGibbs%2C+G+V&rft.aulast=Kirfel&rft.aufirst=A&rft.date=2005-07-01&rft.volume=32&rft.issue=4&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-005-0468-5 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 75 N1 - Document feature - 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - bonding; crystal structure; deformation; electron density; forsterite; nesosilicates; olivine group; orthosilicates; refinement; silicates; single-crystal method; synchrotron radiation; X-ray diffraction data DO - http://dx.doi.org/10.1007/s00269-005-0468-5 ER - TY - JOUR T1 - Method for detection and quantitation of fathead minnow vitellogenin (Vtg) by liquid chromatography and matrix-assisted laser desorption/ionization mass spectrometry AN - 20738164; 6393336 AB - Vitellogenin (Vtg) is a well-recognized biomarker of estrogen exposure in many species, particularly fish. This large protein shares a high degree of sequence homology across a large number of species. Quantitative measurement is currently done using antibody-based assays. These assays frequently require purification of Vtg and antibody production from each species because there is poor cross reactivity between antibodies for different fish. Therefore, complementary methods of measuring Vtg are desirable. Mass spectrometric (MS) analysis coupled to database searching offers the promise of a general method for protein identification. In this study, we used the well-characterized Vtg from rainbow trout (Oncorhynchus mykiss) to evaluate the analytical parameters for matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) analysis of the intact protein. The low sensitivity observed for the intact protein demonstrated that a proteolytic digestion would be necessary for MALDI-MS identification of Vtg. An analytical scale high performance liquid chromatography (HPLC) separation combined with MALDI-MS was used to measure and confirm the identity of Vtg from the plasma of an important species for regulatory agencies, fathead minnow (Pimephales promelas). The small volume requirement of this method (<10 mu L) was found to be compatible with the plasma volume obtained from a few minnows. Importantly, the HPLC-MALDI-MS measurement of fathead minnow Vtg abundance after exposure to estradiol was similar to previously obtained enzyme linked immunosorbant assays (ELISA) data. JF - Aquatic Toxicology AU - Wunschel, D AU - Schultz, I AU - Skillman, A AU - Wahl, K AD - Pacific Northwest National Laboratory, Analytical Chemistry, Richland, WA 99352, USA, David.Wunschel@pnl.gov Y1 - 2005/07/01/ PY - 2005 DA - 2005 Jul 01 SP - 256 EP - 267 PB - Elsevier B.V. VL - 73 IS - 3 SN - 0166-445X, 0166-445X KW - Fathead minnow KW - Rainbow trout KW - Aqualine Abstracts; ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Toxicology Abstracts; Pollution Abstracts KW - Proteolysis KW - High-performance liquid chromatography KW - Aquatic organisms KW - Abundance KW - Biomarkers KW - Freshwater fish KW - Mass spectroscopy KW - Sex hormones KW - Digestion KW - Assay KW - Liquid Chromatography KW - ELISA KW - Bioindicators KW - HPLC KW - Enzyme-linked immunosorbent assay KW - Oncorhynchus mykiss KW - Fathead Minnows KW - Estradiol KW - Databases KW - Liquid chromatography KW - Fish KW - Lasers KW - Purification KW - Ionization KW - Mass Spectrometry KW - Mass spectrometry KW - Quantitation KW - Estrogens KW - Desorption KW - Enzymes KW - biomarkers KW - Pimephales promelas KW - Antibodies KW - Homology KW - Scales KW - Vitellogenin KW - Proteins KW - Governments KW - SW 3010:Identification of pollutants KW - Q1 08343:Taxonomy and morphology KW - Q5 08502:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20738164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Aquatic+Toxicology&rft.atitle=Method+for+detection+and+quantitation+of+fathead+minnow+vitellogenin+%28Vtg%29+by+liquid+chromatography+and+matrix-assisted+laser+desorption%2Fionization+mass+spectrometry&rft.au=Wunschel%2C+D%3BSchultz%2C+I%3BSkillman%2C+A%3BWahl%2C+K&rft.aulast=Wunschel&rft.aufirst=D&rft.date=2005-07-01&rft.volume=73&rft.issue=3&rft.spage=256&rft.isbn=&rft.btitle=&rft.title=Aquatic+Toxicology&rft.issn=0166445X&rft_id=info:doi/10.1016%2Fj.aquatox.2005.03.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - HPLC; Antibodies; ELISA; Lasers; Governments; Biomarkers; Freshwater fish; Mass spectroscopy; Sex hormones; High-performance liquid chromatography; Proteolysis; Estrogens; Enzyme-linked immunosorbent assay; Abundance; biomarkers; Estradiol; Databases; Homology; Liquid chromatography; Vitellogenin; Scales; Purification; Quantitation; Digestion; Bioindicators; Aquatic organisms; Desorption; Enzymes; Mass spectrometry; Proteins; Mass Spectrometry; Assay; Liquid Chromatography; Fish; Fathead Minnows; Ionization; Pimephales promelas; Oncorhynchus mykiss DO - http://dx.doi.org/10.1016/j.aquatox.2005.03.015 ER - TY - JOUR T1 - Identification of shed proteins from Chinese hamster ovary cells: Application of statistical confidence using human and mouse protein databases AN - 17863750; 6222140 AB - The shedding process releases ligands, receptors, and other proteins from the surface of the cell and is a mechanism whereby cells communicate. Even though altered regulation of this process has been implicated in several diseases, global approaches to evaluate shed proteins have not been developed. A goal of this study was to identify global changes in shed proteins in media taken from cells exposed to low-doses of radiation to develop a fundamental understanding of the bystander response. Chinese hamster ovary cells were chosen because they have been widely used for radiation studies and are reported to respond to radiation by releasing factors into the media that cause genomic instability and cytotoxicity in unexposed cells, i.e. a bystander effect. Media samples taken for irradiated cells were evaluated using a combination of tandem- and Fourier transform-ion cyclotron resonance (FT-ICR)-mass spectrometry (MS) analyses. Since the hamster genome has not been sequenced, MS data was searched against the mouse and human protein databases. Nearly 150 proteins identified by tandem mass spectrometry were confirmed by FT-ICR. When both types of MS data were evaluated, using a new confidence scoring tool based on discriminant analyses, about 500 proteins were identified. Approximately 20% of these identifications were either integral membrane proteins or membrane associated proteins, suggesting that they were derived from the cell surface and, hence were likely shed. However, estimates of quantitative changes, based on two independent MS approaches, did not identify any protein abundance changes attributable to the bystander effect. Results from this study demonstrate the feasibility of global evaluation of shed proteins using MS in conjunction with cross-species protein databases and that significant improvement in peptide/protein identifications is provided by the confidence scoring tool. JF - Proteomics AU - Ahram, Mamoun AU - Strittmatter, Eric F AU - Monroe, Matthew E AU - Adkins, Joshua N AU - Hunter, Joel C AU - Miller, John H AU - Springer, David L AD - Biological Sciences Division, Battelle, Pacific Northwest National Laboratory, Richland, WA, USA, david.springer@pnl.gov Y1 - 2005/07// PY - 2005 DA - Jul 2005 SP - 1815 EP - 1826 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 7 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Genomes KW - Cell surface KW - Statistics KW - ^a Radiation KW - Data processing KW - Membrane proteins KW - Mass spectroscopy KW - Spectrometry KW - Databases KW - Cytotoxicity KW - Genomic instability KW - proteomics KW - W3 33080:Bioinformatics and computer applications KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17863750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Identification+of+shed+proteins+from+Chinese+hamster+ovary+cells%3A+Application+of+statistical+confidence+using+human+and+mouse+protein+databases&rft.au=Ahram%2C+Mamoun%3BStrittmatter%2C+Eric+F%3BMonroe%2C+Matthew+E%3BAdkins%2C+Joshua+N%3BHunter%2C+Joel+C%3BMiller%2C+John+H%3BSpringer%2C+David+L&rft.aulast=Ahram&rft.aufirst=Mamoun&rft.date=2005-07-01&rft.volume=5&rft.issue=7&rft.spage=1815&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401072 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Databases; Cell surface; Data processing; ^a Radiation; Statistics; Spectrometry; Mass spectroscopy; Genomes; Membrane proteins; proteomics; Cytotoxicity; Genomic instability DO - http://dx.doi.org/10.1002/pmic.200401072 ER - TY - JOUR T1 - Predicted highly expressed genes in the genomes of Streptomyces coelicolor and Streptomyces avermitilis and the implications for their metabolism AN - 17508839; 6399981 AB - Highly expressed genes in bacteria often have a stronger codon bias than genes expressed at lower levels, due to translational selection. In this study, a comparative analysis of predicted highly expressed (PHX) genes in the Streptomyces coelicolor and Streptomyces avermitilis genomes was performed using the codon adaptation index (CAI) as a numerical estimator of gene expression level. Although it has been suggested that there is little heterogeneity in codon usage in G+C-rich bacteria, considerable heterogeneity was found among genes in these two G+C-rich Streptomyces genomes. Using ribosomal protein genes as references, similar to 10% of the genes were predicted to be PHX genes using a CAI cutoff value of greater than 0 times 78 and 0 times 75 in S. coelicolor and S. avermitilis, respectively. The PHX genes showed good agreement with the experimental data on expression levels obtained from proteomic analysis by previous workers. Among 724 and 730 PHX genes identified from S. coelicolor and S. avermitilis, 368 are orthologue genes present in both genomes, which were mostly `housekeeping' genes involved in cell growth. In addition, 61 orthologous gene pairs with unknown functions were identified as PHX. Only one polyketide synthase gene from each Streptomyces genome was predicted as PHX. Nevertheless, several key genes responsible for producing precursors for secondary metabolites, such as crotonyl-CoA reductase and propionyl-CoA carboxylase, and genes necessary for initiation of secondary metabolism, such as adenosylmethionine synthetase, were among the PHX genes in the two Streptomyces species. The PHX genes exclusive to each genome, and what they imply regarding cellular metabolism, are also discussed. JF - Microbiology AU - Wu, G AU - Culley, DE AU - Zhang, W AD - Microbiology Department, Pacific Northwest National Laboratory, 902 Battelle Boulevard, PO Box 999, Mail Stop P7-50, Richland, WA 99352, USA, Weiwen.Zhang@pnl.gov Y1 - 2005/07// PY - 2005 DA - Jul 2005 SP - 2175 EP - 2187 VL - 151 IS - 7 SN - 1350-0872, 1350-0872 KW - Microbiology Abstracts B: Bacteriology KW - Genomes KW - Translation KW - Polyketide synthase KW - Adaptations KW - Propionyl-CoA carboxylase KW - codon bias KW - Streptomyces coelicolor KW - Streptomyces avermitilis KW - reductase KW - Ribosomal proteins KW - Secondary metabolites KW - Adenosylmethionine KW - proteomics KW - codon usage KW - Metabolism KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17508839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbiology&rft.atitle=Predicted+highly+expressed+genes+in+the+genomes+of+Streptomyces+coelicolor+and+Streptomyces+avermitilis+and+the+implications+for+their+metabolism&rft.au=Wu%2C+G%3BCulley%2C+DE%3BZhang%2C+W&rft.aulast=Wu&rft.aufirst=G&rft.date=2005-07-01&rft.volume=151&rft.issue=7&rft.spage=2175&rft.isbn=&rft.btitle=&rft.title=Microbiology&rft.issn=13500872&rft_id=info:doi/10.1099%2Fmic.0.27833-0 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Genomes; Translation; Polyketide synthase; Adaptations; Propionyl-CoA carboxylase; codon bias; reductase; Ribosomal proteins; Secondary metabolites; Adenosylmethionine; codon usage; proteomics; Metabolism; Streptomyces coelicolor; Streptomyces avermitilis DO - http://dx.doi.org/10.1099/mic.0.27833-0 ER - TY - CPAPER T1 - Novel Genome Comparison Analysis Using Visual Analytics and High-Performance Computing Resources T2 - 13th Annual International Conference on Intelligent Systems for Molecular Biology (ISMB 2005) AN - 40016968; 3956267 JF - 13th Annual International Conference on Intelligent Systems for Molecular Biology (ISMB 2005) AU - Sofia, Heidi AU - Nakamura, Grant AU - Malard, Joel Y1 - 2005/06/25/ PY - 2005 DA - 2005 Jun 25 KW - Genomes KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40016968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=13th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+%28ISMB+2005%29&rft.atitle=Novel+Genome+Comparison+Analysis+Using+Visual+Analytics+and+High-Performance+Computing+Resources&rft.au=Sofia%2C+Heidi%3BNakamura%2C+Grant%3BMalard%2C+Joel&rft.aulast=Sofia&rft.aufirst=Heidi&rft.date=2005-06-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=13th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+%28ISMB+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.iscb.org/ismb2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Reconstruction of Genetic Regulatory Networks Using the Network Inference Testbed Software Environment T2 - 13th Annual International Conference on Intelligent Systems for Molecular Biology (ISMB 2005) AN - 39966445; 3956085 JF - 13th Annual International Conference on Intelligent Systems for Molecular Biology (ISMB 2005) AU - Taylor, Ronald AU - Cannon, William Y1 - 2005/06/25/ PY - 2005 DA - 2005 Jun 25 KW - Computer programs KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39966445?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=13th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+%28ISMB+2005%29&rft.atitle=Reconstruction+of+Genetic+Regulatory+Networks+Using+the+Network+Inference+Testbed+Software+Environment&rft.au=Taylor%2C+Ronald%3BCannon%2C+William&rft.aulast=Taylor&rft.aufirst=Ronald&rft.date=2005-06-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=13th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+%28ISMB+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.iscb.org/ismb2005/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-09-05 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Marine Fungal Glycosyl Hydrolase Genes T2 - 7th International Marine Biotechnology Conference (IMBC 2005) AN - 39676274; 3943600 JF - 7th International Marine Biotechnology Conference (IMBC 2005) AU - Magnuson, J K AU - Baker, S E AU - Fowler, K R AU - Hofstad, B A AU - Lasure, L L Y1 - 2005/06/07/ PY - 2005 DA - 2005 Jun 07 KW - Hydrolase KW - Glycosyl hydrolase KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39676274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=7th+International+Marine+Biotechnology+Conference+%28IMBC+2005%29&rft.atitle=Marine+Fungal+Glycosyl+Hydrolase+Genes&rft.au=Magnuson%2C+J+K%3BBaker%2C+S+E%3BFowler%2C+K+R%3BHofstad%2C+B+A%3BLasure%2C+L+L&rft.aulast=Magnuson&rft.aufirst=J&rft.date=2005-06-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=7th+International+Marine+Biotechnology+Conference+%28IMBC+2005%29&rft.issn=&rft_id=info:doi/ L2 - http://www.imbc2005.org/PDF/program_e.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - An Adaptive Response Surface Modeling Method for Uncertainty Quantification T2 - 2005 SIAM Conference on Mathematical and Computational Issues in the Geosciences AN - 39658309; 3953807 JF - 2005 SIAM Conference on Mathematical and Computational Issues in the Geosciences AU - Engel, David W AU - Scheibe, Timothy D AU - Jarman, Kenneth D AU - Liebetrau, Albert M AU - LoPresti, Charles A AU - White, Amanda M Y1 - 2005/06/07/ PY - 2005 DA - 2005 Jun 07 KW - Computer applications KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/39658309?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2005+SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.atitle=An+Adaptive+Response+Surface+Modeling+Method+for+Uncertainty+Quantification&rft.au=Engel%2C+David+W%3BScheibe%2C+Timothy+D%3BJarman%2C+Kenneth+D%3BLiebetrau%2C+Albert+M%3BLoPresti%2C+Charles+A%3BWhite%2C+Amanda+M&rft.aulast=Engel&rft.aufirst=David&rft.date=2005-06-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2005+SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=GS05 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-05-21 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Influence of sediment bioreduction and reoxidation on uranium sorption. AN - 67983724; 15984791 AB - The influence of sediment bioreduction and reoxidation on U(VI) sorption was studied using Fe(II) oxide-containing saprolite from the U.S. Department of Energy (DOE) Oak Ridge site. Bioreduced sediments were generated by anoxic incubation with a metal-reducing bacterium, Shewanella putrefaciens strain CN32, supplied with lactate as an electron donor. The reduced sediments were subsequently reoxidized by air contact. U(VI) sorption was studied in NaNO3-HCO3 electrolytes that were both closed and open to atmosphere and where pH, U(VI), and carbonate concentration were varied. Mössbauer spectroscopy and chemical analyses showed that 50% of the Fe(III)-oxides were reduced to Fe(II) that was sorbed to the sediment during incubation with CN32. However, this reduction and subsequent reoxidation of the sorbed Fe(II) had negligible influence on the rate and extent of U sorption or the extractability of sorbed U by 0.2 mol/L NaHCO3. Various results indicated that U(VI) surface complexation was the primary process responsible for uranyl sorption by the bioreduced and reoxidized sediments. A two-site, nonelectrostatic surface complexation model best described U(VI) adsorption under variable pH, carbonate, and U(VI) conditions. A ferrihydrite-based diffuse double layer model provided a better estimation of U(VI) adsorption without parameter adjustment than did a goethite-based model, even though a majority of the Fe(III)-oxides in the sediments were goethite. Our results highlight the complexity of the coupled U-Fe redox system and show that sorbed Fe(II) is not a universal reductant for U(VI) as commonly assumed. JF - Environmental science & technology AU - Liu, Chongxuan AU - Zachara, John M AU - Zhong, Lirong AU - Kukkadupa, Ravi AU - Szecsody, Jim E AU - Kennedy, Dave W AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Chongxuan.liu@pnl.gov Y1 - 2005/06/01/ PY - 2005 DA - 2005 Jun 01 SP - 4125 EP - 4133 VL - 39 IS - 11 SN - 0013-936X, 0013-936X KW - Cations KW - 0 KW - Electrolytes KW - Iron Compounds KW - Nitrates KW - Radioactive Waste KW - Uranium Compounds KW - Uranium KW - 4OC371KSTK KW - sodium nitrate KW - 8M4L3H2ZVZ KW - Sodium Bicarbonate KW - 8MDF5V39QO KW - Index Medicus KW - Electrolytes -- chemistry KW - Hydrogen-Ion Concentration KW - Hypoxia -- metabolism KW - Sodium Bicarbonate -- chemistry KW - Spectroscopy, Mossbauer KW - Shewanella putrefaciens -- isolation & purification KW - Adsorption KW - Biodegradation, Environmental KW - Models, Chemical KW - Shewanella putrefaciens -- metabolism KW - Time Factors KW - Iron Compounds -- metabolism KW - Nitrates -- chemistry KW - Geologic Sediments -- chemistry KW - Uranium Compounds -- metabolism KW - Uranium Compounds -- chemistry KW - Uranium -- metabolism KW - Uranium -- chemistry KW - Refuse Disposal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67983724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Influence+of+sediment+bioreduction+and+reoxidation+on+uranium+sorption.&rft.au=Liu%2C+Chongxuan%3BZachara%2C+John+M%3BZhong%2C+Lirong%3BKukkadupa%2C+Ravi%3BSzecsody%2C+Jim+E%3BKennedy%2C+Dave+W&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2005-06-01&rft.volume=39&rft.issue=11&rft.spage=4125&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-10-06 N1 - Date created - 2005-06-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A clinopyroxene-basalt geothermobarometry perspective of Columbia Plateau (NW-USA) Miocene magmatism AN - 51603816; 2006-029905 JF - Terra Nova AU - Caprarelli, Graziella AU - Reidel, Stephen P Y1 - 2005/06// PY - 2005 DA - June 2005 SP - 265 EP - 277 PB - Blackwell, Oxford VL - 17 IS - 3 SN - 0954-4879, 0954-4879 KW - United States KW - silicates KW - tholeiitic basalt KW - geologic thermometry KW - geologic barometry KW - volcanic rocks KW - igneous rocks KW - Miocene KW - Cenozoic KW - Tertiary KW - pyroxene group KW - clinopyroxene KW - sampling KW - phase equilibria KW - Neogene KW - magmas KW - basalts KW - petrography KW - Columbia Plateau KW - geochemistry KW - magma chambers KW - P-T conditions KW - chain silicates KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51603816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Terra+Nova&rft.atitle=A+clinopyroxene-basalt+geothermobarometry+perspective+of+Columbia+Plateau+%28NW-USA%29+Miocene+magmatism&rft.au=Caprarelli%2C+Graziella%3BReidel%2C+Stephen+P&rft.aulast=Caprarelli&rft.aufirst=Graziella&rft.date=2005-06-01&rft.volume=17&rft.issue=3&rft.spage=265&rft.isbn=&rft.btitle=&rft.title=Terra+Nova&rft.issn=09544879&rft_id=info:doi/10.1111%2Fj.1365-3121.2005.00611.x L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-3121/issues LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-09-16 N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chain silicates; clinopyroxene; Columbia Plateau; geochemistry; geologic barometry; geologic thermometry; igneous rocks; magma chambers; magmas; Miocene; Neogene; P-T conditions; petrography; phase equilibria; pyroxene group; sampling; silicates; Tertiary; tholeiitic basalt; United States; volcanic rocks DO - http://dx.doi.org/10.1111/j.1365-3121.2005.00611.x ER - TY - JOUR T1 - Experimental and theoretical bond critical point properties for model electron density distributions for earth materials AN - 51577791; 2006-050801 JF - Physics and Chemistry of Minerals AU - Gibbs, G V AU - Cox, D F AU - Rosso, K M AU - Kirfel, A AU - Lippmann, T AU - Blaha, P AU - Schwarz, K Y1 - 2005/06// PY - 2005 DA - June 2005 SP - 114 EP - 125 PB - Springer-Verlag, Berlin-New York VL - 32 IS - 2 SN - 0342-1791, 0342-1791 KW - silicates KW - calcium KW - hydroxyacid silicate KW - density KW - X-ray diffraction data KW - silica minerals KW - olivine group KW - stishovite KW - bonding KW - silicon KW - coesite KW - senarmonite KW - synchrotron radiation KW - spatial distribution KW - theoretical studies KW - cuprite KW - aluminum KW - orthosilicates KW - oxides KW - framework silicates KW - electrons KW - alkaline earth metals KW - experimental studies KW - alkali metals KW - sodium KW - forsterite KW - critical point KW - nesosilicates KW - metals KW - wave dispersion KW - crystal chemistry KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51577791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Experimental+and+theoretical+bond+critical+point+properties+for+model+electron+density+distributions+for+earth+materials&rft.au=Gibbs%2C+G+V%3BCox%2C+D+F%3BRosso%2C+K+M%3BKirfel%2C+A%3BLippmann%2C+T%3BBlaha%2C+P%3BSchwarz%2C+K&rft.aulast=Gibbs&rft.aufirst=G&rft.date=2005-06-01&rft.volume=32&rft.issue=2&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-005-0456-9 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 40 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; aluminum; bonding; calcium; coesite; critical point; crystal chemistry; cuprite; density; electrons; experimental studies; forsterite; framework silicates; hydroxyacid silicate; metals; nesosilicates; olivine group; orthosilicates; oxides; senarmonite; silica minerals; silicates; silicon; sodium; spatial distribution; stishovite; synchrotron radiation; theoretical studies; wave dispersion; X-ray diffraction data DO - http://dx.doi.org/10.1007/s00269-005-0456-9 ER - TY - JOUR T1 - A mapping of the electron localization function for earth materials AN - 51450725; 2007-043538 JF - Physics and Chemistry of Minerals AU - Gibbs, G V AU - Cox, D F AU - Ross, N L AU - Crawford, T D AU - Burt, J B AU - Rosso, K M Y1 - 2005/06// PY - 2005 DA - June 2005 SP - 208 EP - 221 PB - Springer-Verlag, Berlin - New York VL - 32 IS - 3 SN - 0342-1791, 0342-1791 KW - sorosilicates KW - silicates KW - periclase KW - electron localization KW - ring silicates KW - olivine group KW - stishovite KW - bonding KW - pectolite KW - coesite KW - clinoamphibole KW - melilite group KW - clinopyroxene KW - orthosilicates KW - hurlbutite KW - framework silicates KW - valency KW - chain silicates KW - plagioclase KW - localization KW - cartography KW - beryl KW - vanthoffite KW - forsterite KW - quartz KW - dickite KW - crystal chemistry KW - feldspar group KW - oxygen KW - silica minerals KW - akermanite KW - silicon KW - pyroxene group KW - thortveitite group KW - silica KW - talc KW - cordierite KW - surface defects KW - oxides KW - diopside KW - tremolite KW - functions KW - thortveitite KW - sulfates KW - ELF mapping KW - amphibole group KW - albite KW - phosphates KW - wollastonite group KW - clay minerals KW - nesosilicates KW - hydrogen KW - sheet silicates KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51450725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=A+mapping+of+the+electron+localization+function+for+earth+materials&rft.au=Gibbs%2C+G+V%3BCox%2C+D+F%3BRoss%2C+N+L%3BCrawford%2C+T+D%3BBurt%2C+J+B%3BRosso%2C+K+M&rft.aulast=Gibbs&rft.aufirst=G&rft.date=2005-06-01&rft.volume=32&rft.issue=3&rft.spage=208&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-005-0463-x L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 53 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - akermanite; albite; amphibole group; beryl; bonding; cartography; chain silicates; clay minerals; clinoamphibole; clinopyroxene; coesite; cordierite; crystal chemistry; dickite; diopside; electron localization; ELF mapping; feldspar group; forsterite; framework silicates; functions; hurlbutite; hydrogen; localization; melilite group; nesosilicates; olivine group; orthosilicates; oxides; oxygen; pectolite; periclase; phosphates; plagioclase; pyroxene group; quartz; ring silicates; sheet silicates; silica; silica minerals; silicates; silicon; sorosilicates; stishovite; sulfates; surface defects; talc; thortveitite; thortveitite group; tremolite; valency; vanthoffite; wollastonite group DO - http://dx.doi.org/10.1007/s00269-005-0463-x ER - TY - JOUR T1 - Evaluation of Oral and Intravenous Route Pharmacokinetics, Plasma Protein Binding, and Uterine Tissue Dose Metrics of Bisphenol A: A Physiologically Based Pharmacokinetic Approach AN - 17872867; 6278211 AB - Bisphenol A (BPA) is a weakly estrogenic monomer used in the production of polycarbonate plastic and epoxy resins, both of which are used in food contact and other applications. A physiologically based pharmacokinetic (PBPK) model of BPA pharmacokinetics in rats and humans was developed to provide a physiological context in which the processes controlling BPA pharmacokinetics (e.g., plasma protein binding, enterohepatic recirculation of the glucuronide [BPAG]) could be incorporated. A uterine tissue compartment was included to allow the correlation of simulated estrogen receptor (ER) binding of BPA with increases in uterine wet weight (UWW) in rats. Intravenous- and oral-route blood kinetics of BPA in rats and oral-route plasma and urinary elimination kinetics in humans were well described by the model. Simulations of rat oral-route BPAG pharmacokinetics were less exact, most likely the result of oversimplification of the GI tract compartment. Comparison of metabolic clearance rates derived from fitting rat i.v. and oral-route data implied that intestinal glucuronidation of BPA is significant. In rats, but not humans, terminal elimination rates were strongly influenced by enterohepatic recirculation. In the absence of BPA binding to plasma proteins, simulations showed high ER occupancy at doses without uterine effects. Restricting free BPA to the measured unbound amount demonstrated the importance of including plasma binding in BPA kinetic models: the modeled relationship between ER occupancy and UWW increases was consistent with expectations for a receptor-mediated response with low ER occupancy at doses with no response and increasing occupancy with larger increases in UWW. JF - Toxicological Sciences AU - Teeguarden, Justin G AU - Waechter, John MJr AU - Clewell, Harvey JIII AU - Covington, Tammie R AU - Barton, Hugh A AD - Biological Monitoring and Modeling, Pacific Northwest National Laboratory, 902 Battelle Boulevard, P7-56, Richland, Washington 99352 Y1 - 2005/06// PY - 2005 DA - Jun 2005 SP - 823 EP - 838 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 85 IS - 2 SN - 1096-6080, 1096-6080 KW - Toxicology Abstracts KW - Intravenous administration KW - Uterus KW - Food KW - Animal models KW - Pharmacokinetics KW - Monomers KW - Bisphenol A KW - Plasma proteins KW - Blood KW - Kinetics KW - Intestine KW - Epoxy resins KW - Plastics KW - Estrogen receptors KW - polycarbonate KW - X 24153:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17872867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+Sciences&rft.atitle=Evaluation+of+Oral+and+Intravenous+Route+Pharmacokinetics%2C+Plasma+Protein+Binding%2C+and+Uterine+Tissue+Dose+Metrics+of+Bisphenol+A%3A+A+Physiologically+Based+Pharmacokinetic+Approach&rft.au=Teeguarden%2C+Justin+G%3BWaechter%2C+John+MJr%3BClewell%2C+Harvey+JIII%3BCovington%2C+Tammie+R%3BBarton%2C+Hugh+A&rft.aulast=Teeguarden&rft.aufirst=Justin&rft.date=2005-06-01&rft.volume=85&rft.issue=2&rft.spage=823&rft.isbn=&rft.btitle=&rft.title=Toxicological+Sciences&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pharmacokinetics; Estrogen receptors; Uterus; Plasma proteins; Animal models; Kinetics; Bisphenol A; Intravenous administration; Blood; Monomers; polycarbonate; Intestine; Epoxy resins; Food; Plastics ER - TY - JOUR T1 - Genome-assisted analysis of dissimilatory metal-reducing bacteria AN - 17566423; 6452362 AB - The availability of whole genome sequences for Shewanella oneidensis and Geobacter sulfurreducens has provided numerous new biological insights into the function of these model dissimilatory metal-reducing bacteria. Many of these findings, including the identification of a high number of c-type cytochromes in both organisms, have resulted from comparative genomic analyses, and several have been experimentally confirmed. These genome sequences have also aided the identification of genes important for the reduction of metal ions and other electron acceptors utilized during anaerobic growth, by facilitating the identification of genes disrupted by random insertions. Technologies for assaying global expression patterns for genes and proteins have also been employed, but their application has been limited mainly to the analysis of the role of global regulatory genes and to identifying genes expressed or repressed in response to specific electron acceptors. It is anticipated that details of the mechanisms of metal ion respiration, and metabolism in general, will eventually be revealed by comprehensive, systems-level analyses enabled by functional genomics data. JF - Current Opinion in Biotechnology AU - Fredrickson, J K AU - Romine, M F AD - Pacific Northwest National Laboratory, PO Box 999, Richland, Washington 99352, USA, jim.fredrickson@pnl.gov Y1 - 2005/06// PY - 2005 DA - Jun 2005 SP - 269 EP - 274 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.nl] VL - 16 IS - 3 SN - 0958-1669, 0958-1669 KW - Agricultural and Environmental Biotechnology Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Metals KW - Cytochromes KW - Ions KW - Data processing KW - Respiration KW - Reviews KW - Shewanella oneidensis KW - Genomic analysis KW - genomics KW - Geobacter sulfurreducens KW - Metabolism KW - A 01056:Mineral microbiology KW - W2 32550:Energy, minerals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17566423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Opinion+in+Biotechnology&rft.atitle=Genome-assisted+analysis+of+dissimilatory+metal-reducing+bacteria&rft.au=Fredrickson%2C+J+K%3BRomine%2C+M+F&rft.aulast=Fredrickson&rft.aufirst=J&rft.date=2005-06-01&rft.volume=16&rft.issue=3&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=Current+Opinion+in+Biotechnology&rft.issn=09581669&rft_id=info:doi/10.1016%2Fj.copbio.2005.04.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Ions; Cytochromes; Metals; Data processing; Reviews; Respiration; Genomic analysis; genomics; Metabolism; Shewanella oneidensis; Geobacter sulfurreducens DO - http://dx.doi.org/10.1016/j.copbio.2005.04.001 ER - TY - JOUR T1 - Hydrocarbon observations and ozone production rates in Western Houston during the Texas 2000 Air Quality Study AN - 16200311; 6451625 AB - Measurements of total non-methane hydrocarbon in whole air canisters collected from the top of a skyscraper on the western edge of Houston, Texas are summarized with an emphasis on samples collected during the passage of plumes of O sub(3) and the associated rapid increase in the mixing ratio of this species. The back-trajectories associated with these events showed a pronounced deceleration of air parcels over central and western Houston and were not necessarily associated with direct passage over the petrochemical plants located in the heavily industrialized eastern part of Houston. As a result of the time these air parcels spent over the central and western parts of Houston, their VOC mix and associated chemical production rates were expected to differ from similar observations made over eastern Houston from aircraft sampling at low altitudes. Although periods of high O sub(3) in the western part of the city were closely associated with light alkenes, these same observations show isoprene to make a significant contribution to the total VOC reactivity in the early afternoon (the start of peak photochemical activity) in contrast to observations made east of our sampling site that found the reactivity to be dominated by anthropogenic species. By initializing a 0-dimensional chemical kinetic model with observations made at the Williams Tower, we find that the ozone production efficiency scaled linearly to the ratio of total hydrocarbons and NO sub(x), with an average OPE of 7.2, ranging from 2.3 to 16.9; these values are smaller than those reported in eastern Houston, suggesting a strong gradient in photochemical productivity across the city. JF - Atmospheric Environment AU - Berkowitz, C M AU - Spicer, C W AU - Doskey, P V AD - Pacific Northwest National Laboratory, MSIN K9-30, PO 999, Richland, WA 99352, USA Y1 - 2005/06// PY - 2005 DA - Jun 2005 SP - 3383 EP - 3396 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 39 IS - 19 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Ozone KW - Ozone production efficiency KW - Houston KW - Box-model KW - Hydrocarbons KW - Williams Tower KW - Texas 2000 Air Quality Study KW - Atmospheric pollution models KW - Atmospheric pollution measurements KW - Petrochemicals KW - Air quality KW - Ozone production KW - Photochemicals KW - Emission measurements KW - Mixing ratio KW - Plumes KW - Hydrocarbon emissions KW - USA, Texas, Houston KW - Volatile organic compounds KW - Urban areas KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16200311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Hydrocarbon+observations+and+ozone+production+rates+in+Western+Houston+during+the+Texas+2000+Air+Quality+Study&rft.au=Berkowitz%2C+C+M%3BSpicer%2C+C+W%3BDoskey%2C+P+V&rft.aulast=Berkowitz&rft.aufirst=C&rft.date=2005-06-01&rft.volume=39&rft.issue=19&rft.spage=3383&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2004.12.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Ozone production; Atmospheric pollution models; Atmospheric pollution measurements; Air quality; Mixing ratio; Hydrocarbon emissions; Ozone; Photochemicals; Hydrocarbons; Emission measurements; Petrochemicals; Plumes; Volatile organic compounds; Urban areas; USA, Texas, Houston DO - http://dx.doi.org/10.1016/j.atmosenv.2004.12.007 ER - TY - JOUR T1 - Metal concentrations, foraging distances, and fledging success of great blue herons nesting along the Hanford Reach of the Columbia River. AN - 67893095; 15931979 AB - An ecological risk assessment of the spatial distribution of metal concentrations along the Hanford Reach of the free-flowing Columbia River in southcentral Washington, identified great blue herons, Ardea herodias, at potential risk through the ingestion of contaminated riverine biota, especially fish. We measured metal concentrations in livers of pre-flight herons from the Hanford Reach and excrement samples taken from the same nests. Nests were distributed among three colonies situated upstream and downstream from nine retired plutonium production reactors along the river where metals in reactor coolant waters had been released directly into the river or disposed to shoreline retention basins and ditches. Distances traveled by parent herons to foraging areas along the river shore were determined by visually tracking parent birds as they flew from nests to upriver and downriver foraging sites. Foraging flight distances varied between colonies with mean distances ranging between 0.7 and 3.1 km. Cadmium, Cr, and Pb concentrations were higher in excrement than in the livers of pre-flight herons but the opposite was noted for Cu, Hg, and Zn. Highest metal concentrations of Cr, Cu, Zn, Cd, and Pb, were measured in excrement taken from heron nests at the colony located upstream from all reactors. These results were consistent with metal concentrations reported in river sediment from the same regions, indicating excrement from the heron nests may be a useful indicator of dietary uptake of metals by herons. Fledging success and eggshell thickness measurements were used as an index of health of the local heron population. The results indicate that the reproductive health of great blue herons nesting along the Hanford Reach is among the highest reported in the continental United States. JF - Environmental monitoring and assessment AU - Tiller, Brett L AU - Marco, J D AU - Rickard, W H AD - Pacific Northwest National Laboratory, Richland, Washington, USA. brett.tiller@pnl.gov Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 71 EP - 79 VL - 104 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Water Pollutants, Radioactive KW - 0 KW - Index Medicus KW - Animals KW - Washington KW - Food Contamination KW - Liver -- chemistry KW - Feces -- chemistry KW - Rivers KW - Water Pollutants, Radioactive -- analysis KW - Feeding Behavior KW - Birds -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67893095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+monitoring+and+assessment&rft.atitle=Metal+concentrations%2C+foraging+distances%2C+and+fledging+success+of+great+blue+herons+nesting+along+the+Hanford+Reach+of+the+Columbia+River.&rft.au=Tiller%2C+Brett+L%3BMarco%2C+J+D%3BRickard%2C+W+H&rft.aulast=Tiller&rft.aufirst=Brett&rft.date=2005-05-01&rft.volume=104&rft.issue=1-3&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Environmental+monitoring+and+assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-07-21 N1 - Date created - 2005-06-03 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A paracrine signal mediates the cell transformation response to low dose gamma radiation in JB6 cells. AN - 67788817; 15800926 AB - The carcinogenic response to radiation is complex and may involve adaptive cellular responses as well as a bystander effect mediated by paracrine or intercellular signaling activities. Using a newly developed co-culture model we have examined whether low dose gamma radiation induces the transformation of JB6 mouse epidermal cells as well as non-irradiated bystander cells. Cell transformation response is defined as the acquisition of anchorage-independent growth properties and is quantified by counting colonies on soft agar. Exposure of JB6 cells to low dose (2-20 cGy) gamma radiation resulted in an approximate 1.9 +/- 0.1 and 2.8 +/- 0.5-fold increase in cell transformation response when cells were seeded at 1 x 10(4) or 1 x 10(5) cells/dish, relative to respective sham exposed controls. We developed a co-culture model where sham exposed or irradiated JB6 cells were mixed with non-irradiated JB6 cells that had been stably transfected with the enhanced yellow fluorescent protein (EYFP) to enable the distinction of fluorescent bystander-specific colonies. A significant increase in the number of bystander-specific colonies was observed in co-culture with 10 cGy irradiated JB6 cells (224 +/- 9), relative to the number of bystander-specific colonies arising in co-culture with sham exposed JB6 cells (55 +/- 16). Our results indicate that low dose radiation induces the transformation of JB6 cells and that a soluble paracrine factor that is secreted by irradiated cells induces the transformation of non-irradiated bystander cells. JF - Molecular carcinogenesis AU - Weber, Thomas J AU - Siegel, Robert W AU - Markillie, Lye M AU - Chrisler, William B AU - Lei, Xingye C AU - Colburn, Nancy H AD - Cell Biology and Biochemistry, Pacific Northwest National Laboratory, Richland, WA 99354, USA. Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 31 EP - 37 VL - 43 IS - 1 SN - 0899-1987, 0899-1987 KW - Bacterial Proteins KW - 0 KW - Luminescent Proteins KW - yellow fluorescent protein, Bacteria KW - Index Medicus KW - Microscopy, Fluorescence KW - Coculture Techniques KW - Animals KW - Bacterial Proteins -- genetics KW - Apoptosis KW - Mice KW - Flow Cytometry KW - Dose-Response Relationship, Radiation KW - Luminescent Proteins -- genetics KW - Cell Line KW - Gamma Rays KW - Cell Transformation, Neoplastic -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67788817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+carcinogenesis&rft.atitle=A+paracrine+signal+mediates+the+cell+transformation+response+to+low+dose+gamma+radiation+in+JB6+cells.&rft.au=Weber%2C+Thomas+J%3BSiegel%2C+Robert+W%3BMarkillie%2C+Lye+M%3BChrisler%2C+William+B%3BLei%2C+Xingye+C%3BColburn%2C+Nancy+H&rft.aulast=Weber&rft.aufirst=Thomas&rft.date=2005-05-01&rft.volume=43&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Molecular+carcinogenesis&rft.issn=08991987&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-06-08 N1 - Date created - 2005-05-02 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Derivation of a human equivalent concentration for n-butanol using a physiologically based pharmacokinetic model for n-butyl acetate and metabolites n-butanol and n-butyric acid. AN - 67740369; 15703268 AB - The metabolic series approach for risk assessment uses a dosimetry-based analysis to develop toxicity information for a group of metabolically linked compounds using pharmacokinetic (PK) data for each compound and toxicity data for the parent compound. The metabolic series approach for n-butyl acetate and its subsequent metabolites, n-butanol and n-butyric acid (the butyl series), was first demonstrated using a provisional physiologically based pharmacokinetic (PBPK) model for the butyl series. The objective of this work was to complete development of the PBPK model for the butyl series. Rats were administered test compounds by iv bolus dose, iv infusion, or by inhalation in a recirculating closed chamber. Hepatic, vascular, and extravascular metabolic constants for metabolism were estimated by fitting the model to the blood time course data from these experiments. The respiratory bioavailability of n-butyl acetate (100% of alveolar ventilation) and n-butanol (50% of alveolar ventilation) was estimated from closed chamber inhalation studies and measured ventilation rates. The resulting butyl series PBPK model successfully reproduces the blood time course of these compounds following iv administration and inhalation exposure to n-butyl acetate and n-butanol in rats and arterial blood n-butanol kinetics following inhalation exposure to n-butanol in humans. These validated inhalation route models can be used to support species and dose-route extrapolations required for risk assessment of butyl series family of compounds. Human equivalent concentrations of 169 ppm and 1066 ppm n-butanol corresponding to the rat n-butyl acetate NOAELs of 500 and 3000 ppm were derived using the models. JF - Toxicological sciences : an official journal of the Society of Toxicology AU - Teeguarden, J G AU - Deisinger, P J AU - Poet, T S AU - English, J C AU - Faber, W D AU - Barton, H A AU - Corley, R A AU - Clewell, H J AD - Battelle, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. justin.teeguarden@pnl.gov Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 429 EP - 446 VL - 85 IS - 1 SN - 1096-6080, 1096-6080 KW - Acetates KW - 0 KW - Butyric Acid KW - 107-92-6 KW - butyl acetate KW - 464P5N1905 KW - 1-Butanol KW - 8PJ61P6TS3 KW - Index Medicus KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Injections, Intravenous KW - Infusions, Intravenous KW - Humans KW - Tissue Distribution KW - Administration, Inhalation KW - Male KW - Risk Assessment KW - Acetates -- pharmacokinetics KW - 1-Butanol -- pharmacokinetics KW - Acetates -- blood KW - Butyric Acid -- pharmacokinetics KW - Butyric Acid -- blood KW - Models, Biological KW - 1-Butanol -- blood UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67740369?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.atitle=Derivation+of+a+human+equivalent+concentration+for+n-butanol+using+a+physiologically+based+pharmacokinetic+model+for+n-butyl+acetate+and+metabolites+n-butanol+and+n-butyric+acid.&rft.au=Teeguarden%2C+J+G%3BDeisinger%2C+P+J%3BPoet%2C+T+S%3BEnglish%2C+J+C%3BFaber%2C+W+D%3BBarton%2C+H+A%3BCorley%2C+R+A%3BClewell%2C+H+J&rft.aulast=Teeguarden&rft.aufirst=J&rft.date=2005-05-01&rft.volume=85&rft.issue=1&rft.spage=429&rft.isbn=&rft.btitle=&rft.title=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-08-01 N1 - Date created - 2005-04-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Chemistry of metallic iron nanoparticles AN - 51646004; 2006-007304 JF - Geochimica et Cosmochimica Acta AU - Amonette, J E AU - Sarathy, V AU - Linehan, J C AU - Matson, D W AU - Wang, C AU - Nurmi, James T AU - Pecher, K AU - Penn, R L AU - Tratnyek, Paul G AU - Baer, D R AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 263 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - chlorinated hydrocarbons KW - benzoquinone KW - experimental studies KW - iron oxides KW - oxidation KW - dehalogenation KW - electrochemical properties KW - iron KW - carbon tetrachloride KW - reactivity KW - organic compounds KW - nanocrystalline materials KW - metals KW - dechlorination KW - oxides KW - halogenated hydrocarbons KW - spectra KW - particulate materials KW - geochemistry KW - EPR spectra KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Chemistry+of+metallic+iron+nanoparticles&rft.au=Amonette%2C+J+E%3BSarathy%2C+V%3BLinehan%2C+J+C%3BMatson%2C+D+W%3BWang%2C+C%3BNurmi%2C+James+T%3BPecher%2C+K%3BPenn%2C+R+L%3BTratnyek%2C+Paul+G%3BBaer%2C+D+R%3BAnonymous&rft.aulast=Amonette&rft.aufirst=J&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=263&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - benzoquinone; carbon tetrachloride; chlorinated hydrocarbons; dechlorination; dehalogenation; electrochemical properties; EPR spectra; experimental studies; geochemistry; halogenated hydrocarbons; iron; iron oxides; metals; nanocrystalline materials; organic compounds; oxidation; oxides; particulate materials; reactivity; spectra ER - TY - JOUR T1 - Uranium oxides generated from armored vehicles perforated by ammunition composed of depleted uranium metal AN - 51645832; 2006-007309 JF - Geochimica et Cosmochimica Acta AU - Krupka, K M AU - Parkhurst, M A AU - Arey, B AU - Jenson, E D AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 266 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - autunite KW - medical geology KW - uranium oxides KW - becquerelite KW - crystal growth KW - wars KW - air pollution KW - military geology KW - orthosilicates KW - oxides KW - spectra KW - soils KW - schoepite KW - toxic materials KW - experimental studies KW - oxidation KW - pollution KW - phosphates KW - solubility KW - uranium minerals KW - energy dispersive X-ray spectra KW - nesosilicates KW - hydroxides KW - soddyite KW - metals KW - aerosols KW - risk assessment KW - uranium KW - uranophane KW - actinides KW - SEM data KW - public health KW - 01C:Mineralogy of non-silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51645832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranium+oxides+generated+from+armored+vehicles+perforated+by+ammunition+composed+of+depleted+uranium+metal&rft.au=Krupka%2C+K+M%3BParkhurst%2C+M+A%3BArey%2C+B%3BJenson%2C+E+D%3BAnonymous&rft.aulast=Krupka&rft.aufirst=K&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aerosols; air pollution; autunite; becquerelite; crystal growth; energy dispersive X-ray spectra; experimental studies; hydroxides; medical geology; metals; military geology; nesosilicates; orthosilicates; oxidation; oxides; phosphates; pollution; public health; risk assessment; schoepite; SEM data; silicates; soddyite; soils; solubility; spectra; toxic materials; uranium; uranium minerals; uranium oxides; uranophane; wars ER - TY - JOUR T1 - Calibration of surface complexation reactions with zeta potentials AN - 51644911; 2006-007215 JF - Geochimica et Cosmochimica Acta AU - Boily, J F AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 43 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - goethite KW - complexing KW - mineral-water interface KW - calibration KW - aqueous solutions KW - adsorption KW - electrochemical properties KW - oxides KW - thermodynamic properties KW - geochemistry KW - pH KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51644911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Calibration+of+surface+complexation+reactions+with+zeta+potentials&rft.au=Boily%2C+J+F%3BAnonymous&rft.aulast=Boily&rft.aufirst=J&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; aqueous solutions; calibration; complexing; electrochemical properties; experimental studies; geochemistry; goethite; mineral-water interface; oxides; pH; thermodynamic properties ER - TY - JOUR T1 - Atomistic simulation of the mineral-water interface in contact with charged surfaces AN - 51642136; 2006-007208 JF - Geochimica et Cosmochimica Acta AU - Cooke, David J AU - Kerisit, Sebastien AU - Marmier, Arnaud AU - Parker, Stephen C AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 40 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - sodium chloride KW - goethite KW - mineral-water interface KW - electrostatic properties KW - aqueous solutions KW - simulation KW - ions KW - hydroxyl ion KW - oxides KW - molecular dynamics KW - stoichiometry KW - geochemistry KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51642136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Atomistic+simulation+of+the+mineral-water+interface+in+contact+with+charged+surfaces&rft.au=Cooke%2C+David+J%3BKerisit%2C+Sebastien%3BMarmier%2C+Arnaud%3BParker%2C+Stephen+C%3BAnonymous&rft.aulast=Cooke&rft.aufirst=David&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; electrostatic properties; geochemistry; goethite; hydroxyl ion; ions; mineral-water interface; molecular dynamics; oxides; simulation; sodium chloride; stoichiometry ER - TY - JOUR T1 - Abiotic Tc(VII) reduction by Fe(II) AN - 51630354; 2006-014655 JF - Geochimica et Cosmochimica Acta AU - Jeon, Byong-Hun AU - Zachara, John M AU - Liu, Chongxuan AU - Kukkadapu, Ravi AU - Dohnalkova, Alice AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 368 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - isotopes KW - iron KW - laboratory studies KW - radioactive isotopes KW - chemical reactions KW - oxides KW - valency KW - spectra KW - reduction KW - kinetics KW - geochemistry KW - pH KW - Mossbauer spectra KW - technetium KW - experimental studies KW - pollutants KW - pollution KW - Tc-99 KW - TEM data KW - ferrous iron KW - precipitation KW - metals KW - anaerobic environment KW - magnetite KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51630354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Abiotic+Tc%28VII%29+reduction+by+Fe%28II%29&rft.au=Jeon%2C+Byong-Hun%3BZachara%2C+John+M%3BLiu%2C+Chongxuan%3BKukkadapu%2C+Ravi%3BDohnalkova%2C+Alice%3BAnonymous&rft.aulast=Jeon&rft.aufirst=Byong-Hun&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=368&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M.Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anaerobic environment; chemical reactions; experimental studies; ferrous iron; geochemistry; iron; isotopes; kinetics; laboratory studies; magnetite; metals; Mossbauer spectra; oxides; pH; pollutants; pollution; precipitation; radioactive isotopes; reduction; spectra; Tc-99; technetium; TEM data; valency ER - TY - JOUR T1 - Building conceptual process models of field scale uranium reactive transport for the Hanford 300 area AN - 51625259; 2006-018435 JF - Geochimica et Cosmochimica Acta AU - Yabusaki, S B AU - Fang, Y AU - Waichler, S R AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 414 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - sorption KW - one-dimensional models KW - rivers and streams KW - unsaturated zone KW - coupling KW - simulation KW - radioactive waste KW - ground water KW - laboratory studies KW - transport KW - levels KW - mobility KW - kinetics KW - geochemistry KW - pH KW - hydrology KW - experimental studies KW - Washington KW - Columbia River KW - surface water KW - pollution KW - Hanford Site KW - hydrochemistry KW - aquifers KW - recharge KW - metals KW - theoretical models KW - uranium KW - waste disposal KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51625259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Building+conceptual+process+models+of+field+scale+uranium+reactive+transport+for+the+Hanford+300+area&rft.au=Yabusaki%2C+S+B%3BFang%2C+Y%3BWaichler%2C+S+R%3BAnonymous&rft.aulast=Yabusaki&rft.aufirst=S&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=414&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aquifers; Columbia River; coupling; experimental studies; geochemistry; ground water; Hanford Site; hydrochemistry; hydrology; kinetics; laboratory studies; levels; metals; mobility; one-dimensional models; pH; pollution; radioactive waste; recharge; rivers and streams; simulation; sorption; surface water; theoretical models; transport; United States; unsaturated zone; uranium; Washington; waste disposal ER - TY - JOUR T1 - Reduction of uranyl by trace to minor structural Fe(II) in phyllosilicates AN - 51623664; 2006-022333 JF - Geochimica et Cosmochimica Acta AU - Ilton, Eugene S AU - Heald, Steve M AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 471 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - sorption KW - muscovite KW - iron KW - radioactive waste KW - XANES spectra KW - laboratory studies KW - mica group KW - valency KW - spectra KW - reduction KW - trace elements KW - heterogeneity KW - geochemistry KW - mineral interlayer KW - experimental studies KW - minor elements KW - oxidation KW - uranyl ion KW - X-ray spectra KW - ferrous iron KW - single-crystal method KW - metals KW - bacteria KW - sheet silicates KW - uranium KW - waste disposal KW - phlogopite KW - actinides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reduction+of+uranyl+by+trace+to+minor+structural+Fe%28II%29+in+phyllosilicates&rft.au=Ilton%2C+Eugene+S%3BHeald%2C+Steve+M%3BAnonymous&rft.aulast=Ilton&rft.aufirst=Eugene&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; bacteria; experimental studies; ferrous iron; geochemistry; heterogeneity; iron; laboratory studies; metals; mica group; mineral interlayer; minor elements; muscovite; oxidation; phlogopite; radioactive waste; reduction; sheet silicates; silicates; single-crystal method; sorption; spectra; trace elements; uranium; uranyl ion; valency; waste disposal; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Uranium(VI) desorption from long-term contaminated sediments AN - 51623324; 2006-022331 JF - Geochimica et Cosmochimica Acta AU - Qafoku, N P AU - Zachara, John M AU - Liu, Chongxuan AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 470 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - desorption KW - contaminant plumes KW - unsaturated zone KW - pollution KW - electrolytes KW - advection KW - radioactive waste KW - hexavalent uranium KW - ground water KW - calcite KW - laboratory studies KW - controls KW - metals KW - sediments KW - paleosols KW - uranium KW - waste disposal KW - leaching KW - geochemistry KW - carbonates KW - actinides KW - pH KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranium%28VI%29+desorption+from+long-term+contaminated+sediments&rft.au=Qafoku%2C+N+P%3BZachara%2C+John+M%3BLiu%2C+Chongxuan%3BAnonymous&rft.aulast=Qafoku&rft.aufirst=N&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=470&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; advection; calcite; carbonates; contaminant plumes; controls; desorption; electrolytes; experimental studies; geochemistry; ground water; hexavalent uranium; laboratory studies; leaching; metals; paleosols; pH; pollution; radioactive waste; sediments; unsaturated zone; uranium; waste disposal ER - TY - JOUR T1 - Thermochemical data to describe actinide partitioning to bacteria; a mixed solvent approach AN - 51623210; 2006-018443 JF - Geochimica et Cosmochimica Acta AU - Clark, Sue B AU - Felmy, Andy R AU - Qafoku, Odeta AU - Wang, Zheming AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 418 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - fatty acids KW - lipids KW - solubility KW - radioactive waste KW - partitioning KW - organic compounds KW - organic acids KW - ligands KW - biogenic processes KW - solvents KW - phase equilibria KW - metals KW - bacteria KW - thermochemical properties KW - spectra KW - molecular dynamics KW - geochemistry KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Thermochemical+data+to+describe+actinide+partitioning+to+bacteria%3B+a+mixed+solvent+approach&rft.au=Clark%2C+Sue+B%3BFelmy%2C+Andy+R%3BQafoku%2C+Odeta%3BWang%2C+Zheming%3BAnonymous&rft.aulast=Clark&rft.aufirst=Sue&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=418&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; bacteria; biogenic processes; experimental studies; fatty acids; geochemistry; ligands; lipids; metals; molecular dynamics; organic acids; organic compounds; partitioning; phase equilibria; radioactive waste; solubility; solvents; spectra; thermochemical properties ER - TY - JOUR T1 - Modification of hematite surfaces during colonization by a dissimilatory Fe(III) reducing bacterium under controlled hydrodynamic conditions AN - 51623164; 2006-022309 JF - Geochimica et Cosmochimica Acta AU - Geesey, G G AU - Gonzalez-Gil, G AU - Amonette, James E AU - Romine, M F AU - Gorby, Yuri A AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 459 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - mineral-water interface KW - citrate-bicarbonate-dithionite method KW - Shewanella KW - iron KW - colonization KW - ferrous iron KW - laboratory studies KW - ferric iron KW - mineral cleavage KW - hematite KW - precipitation KW - metals KW - Shewanella oneidensis KW - biofilms KW - bacteria KW - oxides KW - reduction KW - heterogeneity KW - geochemistry KW - mineral surface KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51623164?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Modification+of+hematite+surfaces+during+colonization+by+a+dissimilatory+Fe%28III%29+reducing+bacterium+under+controlled+hydrodynamic+conditions&rft.au=Geesey%2C+G+G%3BGonzalez-Gil%2C+G%3BAmonette%2C+James+E%3BRomine%2C+M+F%3BGorby%2C+Yuri+A%3BAnonymous&rft.aulast=Geesey&rft.aufirst=G&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=459&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biofilms; citrate-bicarbonate-dithionite method; colonization; experimental studies; ferric iron; ferrous iron; geochemistry; hematite; heterogeneity; iron; laboratory studies; metals; mineral cleavage; mineral surface; mineral-water interface; oxides; precipitation; reduction; Shewanella; Shewanella oneidensis ER - TY - JOUR T1 - Fast kinetic Monte Carlo models for defect controlled dissolution of multiple etch pits AN - 51622566; 2006-022364 JF - Geochimica et Cosmochimica Acta AU - Meakin, Paul AU - Rosso, Kevin M AU - Yanina, Svetlana V AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 488 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - numerical models KW - Monte Carlo analysis KW - statistical analysis KW - data processing KW - mineral-water interface KW - solution KW - geometry KW - point defects KW - digital simulation KW - etching KW - crystal dislocations KW - algorithms KW - kinetics KW - mineral surface KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51622566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Fast+kinetic+Monte+Carlo+models+for+defect+controlled+dissolution+of+multiple+etch+pits&rft.au=Meakin%2C+Paul%3BRosso%2C+Kevin+M%3BYanina%2C+Svetlana+V%3BAnonymous&rft.aulast=Meakin&rft.aufirst=Paul&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=488&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - algorithms; crystal dislocations; data processing; digital simulation; etching; geometry; kinetics; mineral surface; mineral-water interface; Monte Carlo analysis; numerical models; point defects; solution; statistical analysis ER - TY - JOUR T1 - Reoxidation of biologically reduced uranium with Fe(III)-(hydr)oxides under sulfate-reducing conditions AN - 51622484; 2006-022332 JF - Geochimica et Cosmochimica Acta AU - Sani, Rajesh K AU - Peyton, Brent M AU - Dohnalkova, Alice AU - Amonette, James E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 471 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - goethite KW - stability KW - iron KW - radioactive waste KW - XANES spectra KW - ferric iron KW - hematite KW - Desulfovibrio KW - oxides KW - spectra KW - reduction KW - Eh KW - experimental studies KW - oxidation KW - Desulfovibrio desulfuricans KW - ferrihydrite KW - X-ray spectra KW - TEM data KW - iron hydroxides KW - hydroxides KW - biogenic processes KW - metals KW - uranium KW - waste disposal KW - uraninite KW - actinides KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51622484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reoxidation+of+biologically+reduced+uranium+with+Fe%28III%29-%28hydr%29oxides+under+sulfate-reducing+conditions&rft.au=Sani%2C+Rajesh+K%3BPeyton%2C+Brent+M%3BDohnalkova%2C+Alice%3BAmonette%2C+James+E%3BAnonymous&rft.aulast=Sani&rft.aufirst=Rajesh&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; biogenic processes; Desulfovibrio; Desulfovibrio desulfuricans; Eh; experimental studies; ferric iron; ferrihydrite; goethite; hematite; hydroxides; iron; iron hydroxides; metals; microorganisms; oxidation; oxides; radioactive waste; reduction; spectra; stability; TEM data; uraninite; uranium; waste disposal; X-ray spectra; XANES spectra ER - TY - JOUR T1 - The Columbia River basalts AN - 51621667; 2006-020503 JF - Geochimica et Cosmochimica Acta AU - Hooper, Peter R AU - Camp, Victor E AU - Reidel, Stephen AU - Ross, Martin AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 138 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - Blue Mountains KW - volcanic rocks KW - Picture Gorge Basalt KW - igneous rocks KW - mantle KW - Cenozoic KW - dike swarms KW - basalts KW - basins KW - back-arc basins KW - mantle plumes KW - Idaho KW - tholeiite KW - Yellowstone Hot Spot KW - Columbia River Basalt Group KW - North American Plate KW - Miocene KW - extension KW - Tertiary KW - plate tectonics KW - Neogene KW - eruptions KW - Cascadia subduction zone KW - Snake River plain KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51621667?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+Columbia+River+basalts&rft.au=Hooper%2C+Peter+R%3BCamp%2C+Victor+E%3BReidel%2C+Stephen%3BRoss%2C+Martin%3BAnonymous&rft.aulast=Hooper&rft.aufirst=Peter&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=138&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - back-arc basins; basalts; basins; Blue Mountains; Cascadia subduction zone; Cenozoic; Columbia River Basalt Group; dike swarms; eruptions; extension; Idaho; igneous rocks; mantle; mantle plumes; Miocene; Neogene; North American Plate; Picture Gorge Basalt; plate tectonics; Snake River plain; Tertiary; tholeiite; United States; volcanic rocks; Yellowstone Hot Spot ER - TY - JOUR T1 - In-situ identification of uranium minerals in concrete AN - 51621071; 2006-022327 JF - Geochimica et Cosmochimica Acta AU - Wellman, Dawn M AU - Mattigod, S V AU - Arey, Bruce W AU - Wood, Marcus I AU - Forrester, Steven W AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 468 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - sorption KW - crystal growth KW - laboratory studies KW - oxides KW - trace elements KW - geochemistry KW - disposal barriers KW - construction materials KW - experimental studies KW - diffusion KW - in situ KW - pollutants KW - cement materials KW - oxyhydroxides KW - uranyl ion KW - pollution KW - phosphates KW - uranium minerals KW - concrete KW - paragenesis KW - hydroxides KW - precipitation KW - identification KW - waste disposal KW - SEM data KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51621071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=In-situ+identification+of+uranium+minerals+in+concrete&rft.au=Wellman%2C+Dawn+M%3BMattigod%2C+S+V%3BArey%2C+Bruce+W%3BWood%2C+Marcus+I%3BForrester%2C+Steven+W%3BAnonymous&rft.aulast=Wellman&rft.aufirst=Dawn&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=468&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - cement materials; concrete; construction materials; crystal growth; diffusion; disposal barriers; experimental studies; geochemistry; hydroxides; identification; in situ; laboratory studies; oxides; oxyhydroxides; paragenesis; phosphates; pollutants; pollution; precipitation; SEM data; silicates; sorption; trace elements; uranium minerals; uranyl ion; waste disposal ER - TY - JOUR T1 - Uranyl-calcium coordination in calcium carbonate systems AN - 51621021; 2006-022336 JF - Geochimica et Cosmochimica Acta AU - Kelly, S D AU - Brooks, S C AU - Fredrickson, J K AU - Rasbury, E T AU - Spoetl, C AU - Sturchio, N C AU - Kemner, K M AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 473 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - calcium KW - coordination KW - complexing KW - remediation KW - radioactive waste KW - hexavalent uranium KW - laboratory studies KW - X-ray fluorescence spectra KW - calcium carbonate KW - spectra KW - reduction KW - geochemistry KW - alkaline earth metals KW - experimental studies KW - XAFS spectra KW - uranyl ion KW - bioremediation KW - X-ray spectra KW - calcite KW - metals KW - uranium KW - waste disposal KW - carbonates KW - actinides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51621021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranyl-calcium+coordination+in+calcium+carbonate+systems&rft.au=Kelly%2C+S+D%3BBrooks%2C+S+C%3BFredrickson%2C+J+K%3BRasbury%2C+E+T%3BSpoetl%2C+C%3BSturchio%2C+N+C%3BKemner%2C+K+M%3BAnonymous&rft.aulast=Kelly&rft.aufirst=S&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; bioremediation; calcite; calcium; calcium carbonate; carbonates; complexing; coordination; experimental studies; geochemistry; hexavalent uranium; laboratory studies; metals; radioactive waste; reduction; remediation; spectra; uranium; uranyl ion; waste disposal; X-ray fluorescence spectra; X-ray spectra; XAFS spectra ER - TY - JOUR T1 - Heterogeneity in Columbia River Basalt Group dikes and the flows they feed; implications for significance and time scale of magma processes AN - 51620044; 2006-020504 JF - Geochimica et Cosmochimica Acta AU - Reidel, Stephen AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 139 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - flood basalts KW - volcanic rocks KW - lava flows KW - igneous rocks KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Saddle Mountains Basalt KW - Cenozoic KW - Tertiary KW - intrusions KW - dikes KW - Neogene KW - magmas KW - eruptions KW - basalts KW - composition KW - Columbia Plateau KW - temporal distribution KW - heterogeneity KW - magma chambers KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51620044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Heterogeneity+in+Columbia+River+Basalt+Group+dikes+and+the+flows+they+feed%3B+implications+for+significance+and+time+scale+of+magma+processes&rft.au=Reidel%2C+Stephen%3BAnonymous&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=139&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; Columbia Plateau; Columbia River Basalt Group; composition; dikes; eruptions; flood basalts; Grande Ronde Basalt; heterogeneity; igneous rocks; intrusions; lava flows; magma chambers; magmas; Miocene; Neogene; Saddle Mountains Basalt; temporal distribution; Tertiary; United States; volcanic rocks ER - TY - JOUR T1 - Probing uranium speciation in contaminated Hanford sediments AN - 51619820; 2006-022339 JF - Geochimica et Cosmochimica Acta AU - Catalano, Jeffrey G AU - Wang, Zheming AU - McKinley, James P AU - Zachara, John M AU - Heald, Steve M AU - Brown, Gordon E, Jr AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 474 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - X-ray diffraction data KW - unsaturated zone KW - radioactive waste KW - synchrotron radiation KW - chemical reactions KW - sediments KW - orthosilicates KW - spectra KW - geochemistry KW - soils KW - leaking underground storage tanks KW - high-level waste KW - experimental studies KW - Washington KW - XAFS spectra KW - pollution KW - Hanford Site KW - X-ray spectra KW - nesosilicates KW - X-ray data KW - soil pollution KW - metals KW - risk assessment KW - uranium KW - waste disposal KW - uranophane KW - actinides KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51619820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Probing+uranium+speciation+in+contaminated+Hanford+sediments&rft.au=Catalano%2C+Jeffrey+G%3BWang%2C+Zheming%3BMcKinley%2C+James+P%3BZachara%2C+John+M%3BHeald%2C+Steve+M%3BBrown%2C+Gordon+E%2C+Jr%3BAnonymous&rft.aulast=Catalano&rft.aufirst=Jeffrey&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=474&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; chemical fractionation; chemical reactions; experimental studies; geochemistry; Hanford Site; high-level waste; leaking underground storage tanks; metals; nesosilicates; orthosilicates; pollution; radioactive waste; risk assessment; sediments; silicates; soil pollution; soils; spectra; synchrotron radiation; United States; unsaturated zone; uranium; uranophane; Washington; waste disposal; X-ray data; X-ray diffraction data; X-ray spectra; XAFS spectra ER - TY - JOUR T1 - Defect distribution and dissolution morphologies on low-index surfaces of alpha -quartz AN - 51619632; 2006-022363 JF - Geochimica et Cosmochimica Acta AU - Yanina, Svetlana V AU - Rosso, Kevin M AU - Meakin, Paul AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 488 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - experimental studies KW - crystal form KW - silica minerals KW - mineral-water interface KW - solution KW - defects KW - chemical reactions KW - quartz KW - framework silicates KW - geochemistry KW - mineral surface KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51619632?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Defect+distribution+and+dissolution+morphologies+on+low-index+surfaces+of+alpha+-quartz&rft.au=Yanina%2C+Svetlana+V%3BRosso%2C+Kevin+M%3BMeakin%2C+Paul%3BAnonymous&rft.aulast=Yanina&rft.aufirst=Svetlana&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=488&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal form; defects; experimental studies; framework silicates; geochemistry; mineral surface; mineral-water interface; quartz; silica minerals; silicates; solution ER - TY - JOUR T1 - The importance of diffusion at the microbe-mineral interface; electrical double layer effects and the impact on precipitation/dissolution AN - 51618525; 2006-020568 JF - Geochimica et Cosmochimica Acta AU - Felmy, Andrew R AU - Liu, C AU - Straatsma, T P AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 171 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - electrical properties KW - diffusion KW - biogenic processes KW - chemical reactions KW - precipitation KW - mineral-water interface KW - molecular dynamics KW - solution KW - ions KW - geochemistry KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51618525?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+importance+of+diffusion+at+the+microbe-mineral+interface%3B+electrical+double+layer+effects+and+the+impact+on+precipitation%2Fdissolution&rft.au=Felmy%2C+Andrew+R%3BLiu%2C+C%3BStraatsma%2C+T+P%3BAnonymous&rft.aulast=Felmy&rft.aufirst=Andrew&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - biogenic processes; chemical reactions; diffusion; electrical properties; geochemistry; ions; microorganisms; mineral-water interface; molecular dynamics; precipitation; solution ER - TY - JOUR T1 - Microscopic reactive diffusion of U(VI) in subsurface sediments; characterization and modeling AN - 51618353; 2006-020566 JF - Geochimica et Cosmochimica Acta AU - Liu, C AU - Majors, P D AU - Zachara, J M AU - McKinley, J P AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 170 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - fractured materials KW - characterization KW - NMR spectra KW - radioactive waste KW - hexavalent uranium KW - chemical reactions KW - sediments KW - orthosilicates KW - spectra KW - geochemistry KW - water KW - diffusion KW - numerical models KW - pollutants KW - uranyl ion KW - pollution KW - boltwoodite KW - nesosilicates KW - models KW - precipitation KW - metals KW - uranium KW - waste disposal KW - actinides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51618353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Microscopic+reactive+diffusion+of+U%28VI%29+in+subsurface+sediments%3B+characterization+and+modeling&rft.au=Liu%2C+C%3BMajors%2C+P+D%3BZachara%2C+J+M%3BMcKinley%2C+J+P%3BAnonymous&rft.aulast=Liu&rft.aufirst=C&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; boltwoodite; characterization; chemical reactions; diffusion; fractured materials; geochemistry; hexavalent uranium; metals; models; nesosilicates; NMR spectra; numerical models; orthosilicates; pollutants; pollution; precipitation; radioactive waste; sediments; silicates; spectra; uranium; uranyl ion; waste disposal; water ER - TY - JOUR T1 - Free energy of adsorption of molecules and ions at the calcite-water interface AN - 51618114; 2006-022351 JF - Geochimica et Cosmochimica Acta AU - Kerisit, Sebastien AU - Parker, Stephen C AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 481 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - calcium KW - alkaline earth metals KW - magnesium KW - desorption KW - mineral-water interface KW - free energy KW - adsorption KW - simulation KW - ions KW - calcite KW - metals KW - theoretical models KW - molecular dynamics KW - thermodynamic properties KW - crystal chemistry KW - geochemistry KW - carbonates KW - strontium KW - mineral surface KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51618114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Free+energy+of+adsorption+of+molecules+and+ions+at+the+calcite-water+interface&rft.au=Kerisit%2C+Sebastien%3BParker%2C+Stephen+C%3BAnonymous&rft.aulast=Kerisit&rft.aufirst=Sebastien&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=481&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; alkaline earth metals; calcite; calcium; carbonates; crystal chemistry; desorption; free energy; geochemistry; ions; magnesium; metals; mineral surface; mineral-water interface; molecular dynamics; simulation; strontium; theoretical models; thermodynamic properties ER - TY - JOUR T1 - Chemical factors controlling U(VI) mobility in a Hanford aquifer AN - 51617845; 2006-022346 JF - Geochimica et Cosmochimica Acta AU - Bond, D L AU - Davis, J A AU - Zachara, John M AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 478 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - sorption KW - complexing KW - unsaturated zone KW - hexavalent uranium KW - ground water KW - laboratory studies KW - geochemical controls KW - chemical reactions KW - alkalinity KW - mobility KW - kinetics KW - geochemistry KW - experimental studies KW - Washington KW - Columbia River KW - surface water KW - pollution KW - Hanford Site KW - hydrochemistry KW - aquifers KW - precipitation KW - metals KW - infiltration KW - uranium KW - actinides KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51617845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Chemical+factors+controlling+U%28VI%29+mobility+in+a+Hanford+aquifer&rft.au=Bond%2C+D+L%3BDavis%2C+J+A%3BZachara%2C+John+M%3BAnonymous&rft.aulast=Bond&rft.aufirst=D&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=478&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alkalinity; aquifers; chemical reactions; Columbia River; complexing; experimental studies; geochemical controls; geochemistry; ground water; Hanford Site; hexavalent uranium; hydrochemistry; infiltration; kinetics; laboratory studies; metals; mobility; pollution; precipitation; sorption; surface water; United States; unsaturated zone; uranium; Washington ER - TY - JOUR T1 - Electron transfer reactions in solution and at interfaces AN - 51615826; 2006-024088 JF - Geochimica et Cosmochimica Acta AU - Rustad, James R AU - Rosso, Kevin M AU - Felmy, Andrew R AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 505 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - numerical models KW - data processing KW - mineral-water interface KW - hydrolysis KW - aqueous solutions KW - dielectric constant KW - iron KW - ferric iron KW - chemical reactions KW - metals KW - digital simulation KW - theoretical models KW - cations KW - molecular dynamics KW - geochemistry KW - pH KW - electrons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51615826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Electron+transfer+reactions+in+solution+and+at+interfaces&rft.au=Rustad%2C+James+R%3BRosso%2C+Kevin+M%3BFelmy%2C+Andrew+R%3BAnonymous&rft.aulast=Rustad&rft.aufirst=James&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=505&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; cations; chemical reactions; data processing; dielectric constant; digital simulation; electrons; ferric iron; geochemistry; hydrolysis; iron; metals; mineral-water interface; molecular dynamics; numerical models; pH; theoretical models ER - TY - JOUR T1 - Rates of uranium electron transfer; a theoretical perspective AN - 51615397; 2006-014638 JF - Geochimica et Cosmochimica Acta AU - Rosso, Kevin M AU - Wang, Zheming AU - Ainsworth, Calvin C AU - Fredrickson, Jim K AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 360 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - carbonate ion KW - sulfate ion KW - mineral-water interface KW - crystal structure KW - phosphate ion KW - ligands KW - biogenic processes KW - metals KW - bacteria KW - theoretical models KW - uranium KW - reduction KW - transformations KW - mobility KW - kinetics KW - geochemistry KW - aquatic environment KW - actinides KW - Eh KW - electrons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51615397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Rates+of+uranium+electron+transfer%3B+a+theoretical+perspective&rft.au=Rosso%2C+Kevin+M%3BWang%2C+Zheming%3BAinsworth%2C+Calvin+C%3BFredrickson%2C+Jim+K%3BAnonymous&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=360&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M.Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aquatic environment; bacteria; biogenic processes; carbonate ion; crystal structure; Eh; electrons; geochemistry; kinetics; ligands; metals; mineral-water interface; mobility; phosphate ion; reduction; sulfate ion; theoretical models; transformations; uranium ER - TY - JOUR T1 - Molecular speciation, mineral residence, and geochemical behavior of U in contaminated subsurface sediments AN - 51613291; 2006-024306 JF - Geochimica et Cosmochimica Acta AU - Zachara, John M AU - McKinley, Jim AU - Liu, Chongxuan AU - Wang, Zheming AU - Catalano, Jeff AU - Brown, Gordon AU - Qafoku, Nik AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 618 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - sorption KW - terrestrial environment KW - contaminant plumes KW - semi-arid environment KW - unsaturated zone KW - solution KW - radioactive waste KW - hexavalent uranium KW - ground water KW - synchrotron radiation KW - phase equilibria KW - sediments KW - spectra KW - water pollution KW - kinetics KW - geochemistry KW - experimental studies KW - Washington KW - pollutants KW - uranyl ion KW - pollution KW - Hanford Site KW - X-ray spectra KW - TEM data KW - precipitation KW - metals KW - residence time KW - uranium KW - waste disposal KW - actinides KW - underground disposal KW - SEM data KW - chemical fractionation KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51613291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Molecular+speciation%2C+mineral+residence%2C+and+geochemical+behavior+of+U+in+contaminated+subsurface+sediments&rft.au=Zachara%2C+John+M%3BMcKinley%2C+Jim%3BLiu%2C+Chongxuan%3BWang%2C+Zheming%3BCatalano%2C+Jeff%3BBrown%2C+Gordon%3BQafoku%2C+Nik%3BAnonymous&rft.aulast=Zachara&rft.aufirst=John&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=618&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; chemical fractionation; contaminant plumes; experimental studies; geochemistry; ground water; Hanford Site; hexavalent uranium; kinetics; metals; phase equilibria; pollutants; pollution; precipitation; radioactive waste; residence time; sediments; SEM data; semi-arid environment; silicates; solution; sorption; spectra; synchrotron radiation; TEM data; terrestrial environment; underground disposal; United States; unsaturated zone; uranium; uranyl ion; Washington; waste disposal; water pollution; X-ray spectra ER - TY - JOUR T1 - Imaging and analysis of biominerals and nanostructures associated with bacterial membranes AN - 51613236; 2006-027516 JF - Geochimica et Cosmochimica Acta AU - Dohnalkova, Alice AU - Kennedy, David AU - Marshall, Matt AU - Gorby, Yuri AU - Elias, Dwayne AU - Fredrickson, Jim AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 673 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - biomineralization KW - imagery KW - experimental studies KW - isotopes KW - biochemistry KW - enzymes KW - Shewanella KW - laboratory studies KW - organic compounds KW - radioactive isotopes KW - metals KW - Shewanella oneidensis KW - bacteria KW - reduction KW - proteins KW - nanoparticles KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51613236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Imaging+and+analysis+of+biominerals+and+nanostructures+associated+with+bacterial+membranes&rft.au=Dohnalkova%2C+Alice%3BKennedy%2C+David%3BMarshall%2C+Matt%3BGorby%2C+Yuri%3BElias%2C+Dwayne%3BFredrickson%2C+Jim%3BAnonymous&rft.aulast=Dohnalkova&rft.aufirst=Alice&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=673&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; biomineralization; enzymes; experimental studies; geochemistry; imagery; isotopes; laboratory studies; metals; nanoparticles; organic compounds; proteins; radioactive isotopes; reduction; Shewanella; Shewanella oneidensis ER - TY - JOUR T1 - Rigorous theoretical determination of L-edge soft X-ray absorption spectra for transition metal complexes AN - 51613158; 2006-024273 JF - Geochimica et Cosmochimica Acta AU - Bagus, P S AU - Ilton, Eugene S AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 601 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - absorption KW - chemical analysis KW - metals KW - X-ray spectroscopy KW - X-ray analysis KW - theoretical models KW - oxides KW - techniques KW - rare earths KW - spectroscopy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51613158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Rigorous+theoretical+determination+of+L-edge+soft+X-ray+absorption+spectra+for+transition+metal+complexes&rft.au=Bagus%2C+P+S%3BIlton%2C+Eugene+S%3BAnonymous&rft.aulast=Bagus&rft.aufirst=P&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=601&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absorption; chemical analysis; metals; oxides; rare earths; spectroscopy; techniques; theoretical models; X-ray analysis; X-ray spectroscopy ER - TY - JOUR T1 - Soft X-ray absorption and emission spectroscopies as probes of metal dopants and clusters AN - 51613142; 2006-024269 JF - Geochimica et Cosmochimica Acta AU - Chambers, Scott A AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 599 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - absorption KW - chemical analysis KW - metals KW - X-ray spectroscopy KW - X-ray analysis KW - spectroscopy KW - emission spectroscopy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51613142?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Soft+X-ray+absorption+and+emission+spectroscopies+as+probes+of+metal+dopants+and+clusters&rft.au=Chambers%2C+Scott+A%3BAnonymous&rft.aulast=Chambers&rft.aufirst=Scott&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=599&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - absorption; chemical analysis; emission spectroscopy; metals; spectroscopy; X-ray analysis; X-ray spectroscopy ER - TY - JOUR T1 - Display and retraction of outer membrane cytochromes by Shewanella oneidensis in response to electron acceptor availability AN - 51612801; 2006-027460 JF - Geochimica et Cosmochimica Acta AU - Gorby, Yuri AU - Biju, V AU - McLean, Jeff AU - Saffarini, D AU - Frederickson, James AU - Lu, H Peter AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 671 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - iron oxides KW - biochemistry KW - molecular biology KW - Shewanella KW - cytochromes KW - models KW - organic compounds KW - Raman spectra KW - atomic force microscopy data KW - Shewanella oneidensis KW - physiology KW - bacteria KW - manganese oxides KW - oxides KW - spectra KW - reduction KW - proteins KW - nanoparticles KW - geochemistry KW - Eh KW - electrons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51612801?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Display+and+retraction+of+outer+membrane+cytochromes+by+Shewanella+oneidensis+in+response+to+electron+acceptor+availability&rft.au=Gorby%2C+Yuri%3BBiju%2C+V%3BMcLean%2C+Jeff%3BSaffarini%2C+D%3BFrederickson%2C+James%3BLu%2C+H+Peter%3BAnonymous&rft.aulast=Gorby&rft.aufirst=Yuri&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=671&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; bacteria; biochemistry; cytochromes; Eh; electrons; experimental studies; geochemistry; iron oxides; manganese oxides; models; molecular biology; nanoparticles; organic compounds; oxides; physiology; proteins; Raman spectra; reduction; Shewanella; Shewanella oneidensis; spectra ER - TY - JOUR T1 - Microbial C and N assimilation in soils and model systems as revealed by ToF-SIMS AN - 51611878; 2006-024131 JF - Geochimica et Cosmochimica Acta AU - Cliff, John B AU - Gaspar, Daniel J AU - Bottomley, Peter J AU - Myrold, David D AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 527 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - soils KW - chemical analysis KW - numerical models KW - mass spectroscopy KW - ToF-SIMS KW - nitrogen KW - models KW - ion probe KW - carbon KW - algorithms KW - spectroscopy KW - nanoparticles KW - geochemistry KW - instruments KW - microorganisms KW - 25:Soils KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51611878?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Microbial+C+and+N+assimilation+in+soils+and+model+systems+as+revealed+by+ToF-SIMS&rft.au=Cliff%2C+John+B%3BGaspar%2C+Daniel+J%3BBottomley%2C+Peter+J%3BMyrold%2C+David+D%3BAnonymous&rft.aulast=Cliff&rft.aufirst=John&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=527&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - algorithms; carbon; chemical analysis; geochemistry; instruments; ion probe; mass spectroscopy; microorganisms; models; nanoparticles; nitrogen; numerical models; soils; spectroscopy; ToF-SIMS ER - TY - JOUR T1 - Speciation of uranyl absorbed on gibbsite; a time-resolved laser-induced fluorescence spectroscopic study AN - 51611391; 2006-024307 JF - Geochimica et Cosmochimica Acta AU - Korshin, Gregory V AU - Chang, Hyun-Shik AU - Wang, Zheming AU - Zachara, John M AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 619 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - laser methods KW - factor analysis KW - statistical analysis KW - uranyl ion KW - techniques KW - adsorption KW - laboratory studies KW - fluorescence KW - oxides KW - spectra KW - gibbsite KW - geochemistry KW - pH KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51611391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Speciation+of+uranyl+absorbed+on+gibbsite%3B+a+time-resolved+laser-induced+fluorescence+spectroscopic+study&rft.au=Korshin%2C+Gregory+V%3BChang%2C+Hyun-Shik%3BWang%2C+Zheming%3BZachara%2C+John+M%3BAnonymous&rft.aulast=Korshin&rft.aufirst=Gregory&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=619&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; chemical fractionation; experimental studies; factor analysis; fluorescence; geochemistry; gibbsite; laboratory studies; laser methods; oxides; pH; spectra; statistical analysis; techniques; uranyl ion ER - TY - JOUR T1 - Spectroscopic characterization of nano-magnetite; facts and mystery about an illusive mineral phase AN - 51609816; 2006-024270 JF - Geochimica et Cosmochimica Acta AU - Pecher, Klaus AU - Baer, D R AU - McCready, David AU - Engelhard, Mark AU - Lopatin, Sergei AU - Browning, Nigel AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 600 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - synchrotron radiation KW - experimental studies KW - oxides KW - spectra KW - crystal chemistry KW - nanoparticles KW - X-ray spectra KW - TEM data KW - magnetite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51609816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Spectroscopic+characterization+of+nano-magnetite%3B+facts+and+mystery+about+an+illusive+mineral+phase&rft.au=Pecher%2C+Klaus%3BBaer%2C+D+R%3BMcCready%2C+David%3BEngelhard%2C+Mark%3BLopatin%2C+Sergei%3BBrowning%2C+Nigel%3BAnonymous&rft.aulast=Pecher&rft.aufirst=Klaus&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=600&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - crystal chemistry; experimental studies; magnetite; nanoparticles; oxides; spectra; synchrotron radiation; TEM data; X-ray spectra ER - TY - JOUR T1 - Biogeochemical redox transformations of technetium-99 in Hanford and Oak Ridge sediments AN - 51600207; 2006-035942 JF - Geochimica et Cosmochimica Acta AU - Plymale, A E AU - Frederickson, J K AU - Zachara, J M AU - Kennedy, D W AU - Kukkadapu, R K AU - Dohnalkova, A C AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 801 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - isotopes KW - radioactive waste KW - radioactive isotopes KW - Tennessee KW - sediments KW - oxides KW - reduction KW - geochemistry KW - Eh KW - soils KW - Oak Ridge National Laboratory KW - technetium KW - toxic materials KW - experimental studies KW - Washington KW - pollutants KW - biochemistry KW - oxidation KW - pollution KW - Hanford Site KW - Tc-99 KW - pertechnetate KW - biogenic processes KW - soil pollution KW - metals KW - waste disposal KW - transformations KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51600207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Biogeochemical+redox+transformations+of+technetium-99+in+Hanford+and+Oak+Ridge+sediments&rft.au=Plymale%2C+A+E%3BFrederickson%2C+J+K%3BZachara%2C+J+M%3BKennedy%2C+D+W%3BKukkadapu%2C+R+K%3BDohnalkova%2C+A+C%3BAnonymous&rft.aulast=Plymale&rft.aufirst=A&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=801&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - biochemistry; biogenic processes; Eh; experimental studies; geochemistry; Hanford Site; isotopes; metals; Oak Ridge National Laboratory; oxidation; oxides; pertechnetate; pollutants; pollution; radioactive isotopes; radioactive waste; reduction; sediments; soil pollution; soils; Tc-99; technetium; Tennessee; toxic materials; transformations; United States; Washington; waste disposal ER - TY - JOUR T1 - The role of Si-O bonds in dissolution of silicate glasses; inferences for rate-limiting step AN - 51598936; 2006-035900 JF - Geochimica et Cosmochimica Acta AU - Icenhower, Jonathan P AU - McGrail, B Pete AU - Luettge, Andreas AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 778 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - experimental studies KW - oxygen KW - natural materials KW - mineral-water interface KW - polymerization KW - bonding KW - solution KW - X-ray spectra KW - NMR spectra KW - MAS NMR spectra KW - laboratory studies KW - borosilicates KW - chemical reactions KW - sulfur KW - boron KW - spectra KW - waste disposal KW - kinetics KW - glass materials KW - synthetic materials KW - disposal barriers KW - 01B:Mineralogy of silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51598936?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+role+of+Si-O+bonds+in+dissolution+of+silicate+glasses%3B+inferences+for+rate-limiting+step&rft.au=Icenhower%2C+Jonathan+P%3BMcGrail%2C+B+Pete%3BLuettge%2C+Andreas%3BAnonymous&rft.aulast=Icenhower&rft.aufirst=Jonathan&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=778&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bonding; boron; borosilicates; chemical reactions; disposal barriers; experimental studies; glass materials; kinetics; laboratory studies; MAS NMR spectra; mineral-water interface; natural materials; NMR spectra; oxygen; polymerization; silicates; solution; spectra; sulfur; synthetic materials; waste disposal; X-ray spectra ER - TY - JOUR T1 - Effect of Al/B ratio on the dissolution of nepheline glass, Na (sub 3) (Al,B) (sub 1-4) Si (sub 4) O (sub 16) AN - 51598657; 2006-035905 JF - Geochimica et Cosmochimica Acta AU - Pierce, Eric M AU - Reed, Lunde R AU - Shaw, Wendy J AU - Icenhower, Jonathan P AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 781 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - silicates KW - experimental studies KW - coordination KW - mineral-water interface KW - solution KW - NMR spectra KW - MAS NMR spectra KW - laboratory studies KW - nepheline KW - metals KW - aluminum KW - nepheline group KW - framework silicates KW - boron KW - spectra KW - ion exchange KW - crystal chemistry KW - glass materials KW - geochemistry KW - chemical ratios KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51598657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Effect+of+Al%2FB+ratio+on+the+dissolution+of+nepheline+glass%2C+Na+%28sub+3%29+%28Al%2CB%29+%28sub+1-4%29+Si+%28sub+4%29+O+%28sub+16%29&rft.au=Pierce%2C+Eric+M%3BReed%2C+Lunde+R%3BShaw%2C+Wendy+J%3BIcenhower%2C+Jonathan+P%3BAnonymous&rft.aulast=Pierce&rft.aufirst=Eric&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=781&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aluminum; boron; chemical ratios; coordination; crystal chemistry; experimental studies; framework silicates; geochemistry; glass materials; ion exchange; laboratory studies; MAS NMR spectra; metals; mineral-water interface; nepheline; nepheline group; NMR spectra; silicates; solution; spectra ER - TY - JOUR T1 - On charge transport in iron oxides AN - 51597738; 2006-035899 JF - Geochimica et Cosmochimica Acta AU - Rosso, Kevin M AU - Dupuis, Michel AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 778 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - numerical models KW - iron oxides KW - mineral-water interface KW - crystal structure KW - hematite KW - oxides KW - valency KW - crystal chemistry KW - mobility KW - Eh KW - magnetite KW - electrons KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51597738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=On+charge+transport+in+iron+oxides&rft.au=Rosso%2C+Kevin+M%3BDupuis%2C+Michel%3BAnonymous&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=778&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - crystal chemistry; crystal structure; Eh; electrons; hematite; iron oxides; magnetite; mineral-water interface; mobility; numerical models; oxides; valency ER - TY - JOUR T1 - Extraction and quantitative analysis of iodine in solid matrices AN - 51570348; 2006-054828 JF - Geochimica et Cosmochimica Acta AU - Brown, C F AU - Geiszler, K N AU - Legore, V L AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 717 PB - Pergamon, Oxford VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - experimental studies KW - chemical analysis KW - isotopes KW - matrix KW - halogens KW - stable isotopes KW - solid phase KW - laboratory studies KW - iodine KW - sample preparation KW - radioactive isotopes KW - I-129 KW - quantitative analysis KW - I-127 KW - standard materials KW - fusion KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51570348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Extraction+and+quantitative+analysis+of+iodine+in+solid+matrices&rft.au=Brown%2C+C+F%3BGeiszler%2C+K+N%3BLegore%2C+V+L%3BAnonymous&rft.aulast=Brown&rft.aufirst=C&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=717&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical analysis; experimental studies; fusion; halogens; I-127; I-129; iodine; isotopes; laboratory studies; matrix; quantitative analysis; radioactive isotopes; sample preparation; solid phase; stable isotopes; standard materials ER - TY - JOUR T1 - Silicon-aluminum MAS-NMR TRAPDOR of natural silica minerals AN - 51559934; 2006-065331 JF - Geochimica et Cosmochimica Acta AU - Hinman, N AU - Burton, S AU - Cho, H AU - Tenesch, A AU - Kotler, Julia M AU - Strumness, Laura AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 814 PB - Elsevier, New York, NY VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - TRAPDOR KW - siliceous sinter KW - silicates KW - experimental studies KW - chemically precipitated rocks KW - geomicrobiology KW - natural materials KW - clay mineralogy KW - crystal structure KW - silicon KW - NMR spectra KW - MAS NMR spectra KW - clay minerals KW - sedimentary rocks KW - metals KW - aluminum KW - zeolite group KW - sheet silicates KW - framework silicates KW - applications KW - spectra KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51559934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Silicon-aluminum+MAS-NMR+TRAPDOR+of+natural+silica+minerals&rft.au=Hinman%2C+N%3BBurton%2C+S%3BCho%2C+H%3BTenesch%2C+A%3BKotler%2C+Julia+M%3BStrumness%2C+Laura%3BAnonymous&rft.aulast=Hinman&rft.aufirst=N&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=814&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aluminum; applications; chemically precipitated rocks; clay mineralogy; clay minerals; crystal structure; experimental studies; framework silicates; geomicrobiology; MAS NMR spectra; metals; natural materials; NMR spectra; sedimentary rocks; sheet silicates; silicates; siliceous sinter; silicon; spectra; TRAPDOR; zeolite group ER - TY - JOUR T1 - Iodide adsorption and transport at the Hanford Site, Washington AN - 51544058; 2006-065437 JF - Geochimica et Cosmochimica Acta AU - Um, Wooyong AU - Serne, R Jeffrey AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 870 PB - Elsevier, New York, NY VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - United States KW - experimental studies KW - Washington KW - isotopes KW - halogens KW - data processing KW - Hanford Site KW - adsorption KW - radioactive waste KW - ground water KW - computer programs KW - iodine KW - radioactive isotopes KW - I-129 KW - I-125 KW - CXTFIT KW - breakthrough curves KW - waste disposal KW - low-level waste KW - geochemistry KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51544058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Iodide+adsorption+and+transport+at+the+Hanford+Site%2C+Washington&rft.au=Um%2C+Wooyong%3BSerne%2C+R+Jeffrey%3BAnonymous&rft.aulast=Um&rft.aufirst=Wooyong&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=870&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; breakthrough curves; computer programs; CXTFIT; data processing; experimental studies; geochemistry; ground water; halogens; Hanford Site; I-125; I-129; iodine; isotopes; low-level waste; radioactive isotopes; radioactive waste; United States; Washington; waste disposal ER - TY - JOUR T1 - Tracking sources of unsaturated zone and ground water nitrate contamination using nitrogen and oxygen stable isotopes at the Hanford Site, Washington AN - 51521789; 2006-089474 JF - Environmental Science & Technology, ES & T AU - Singleton, Michael J AU - Woods, Katharine N AU - Conrad, Mark E AU - DePaolo, Donald J AU - Dresel, P Evan Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 3563 EP - 3570 PB - American Chemical Society, Washington, DC VL - 39 IS - 10 SN - 0013-936X, 0013-936X KW - United States KW - hazardous waste KW - caliche KW - volcanic rocks KW - oxygen KW - isotopes KW - igneous rocks KW - unsaturated zone KW - observation wells KW - mass spectra KW - duricrust KW - environmental analysis KW - stable isotopes KW - radioactive waste KW - nitrogen KW - ground water KW - Cenozoic KW - sedimentary rocks KW - sampling KW - movement KW - basalts KW - sediments KW - spectra KW - geochemistry KW - soils KW - bedrock KW - chemically precipitated rocks KW - Washington KW - N-15/N-14 KW - Quaternary KW - pollutants KW - isotope ratios KW - Columbia River Basalt Group KW - pollution KW - nitrates KW - Hanford Site KW - O-18/O-16 KW - Ringold Formation KW - hydrochemistry KW - Miocene KW - aquifers KW - calcareous composition KW - Tertiary KW - Neogene KW - Pliocene KW - Pleistocene KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51521789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Tracking+sources+of+unsaturated+zone+and+ground+water+nitrate+contamination+using+nitrogen+and+oxygen+stable+isotopes+at+the+Hanford+Site%2C+Washington&rft.au=Singleton%2C+Michael+J%3BWoods%2C+Katharine+N%3BConrad%2C+Mark+E%3BDePaolo%2C+Donald+J%3BDresel%2C+P+Evan&rft.aulast=Singleton&rft.aufirst=Michael&rft.date=2005-05-01&rft.volume=39&rft.issue=10&rft.spage=3563&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes0481070 L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifers; basalts; bedrock; calcareous composition; caliche; Cenozoic; chemically precipitated rocks; Columbia River Basalt Group; duricrust; environmental analysis; geochemistry; ground water; Hanford Site; hazardous waste; hydrochemistry; igneous rocks; isotope ratios; isotopes; mass spectra; Miocene; movement; N-15/N-14; Neogene; nitrates; nitrogen; O-18/O-16; observation wells; oxygen; Pleistocene; Pliocene; pollutants; pollution; Quaternary; radioactive waste; Ringold Formation; sampling; sedimentary rocks; sediments; soils; spectra; stable isotopes; Tertiary; United States; unsaturated zone; volcanic rocks; Washington; waste disposal DO - http://dx.doi.org/10.1021/es0481070 ER - TY - JOUR T1 - Kinetic desorption and sorption of U(VI) during reactive transport in a contaminated Hanford sediment AN - 51520570; 2006-089458 JF - Environmental Science & Technology, ES & T AU - Qafoku, Nikolla P AU - Zachara, John M AU - Liu, Chongxuan AU - Gassman, Paul L AU - Qafoku, Odeta S AU - Smith, Steven C Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 3157 EP - 3165 PB - American Chemical Society, Washington, DC VL - 39 IS - 9 SN - 0013-936X, 0013-936X KW - United States KW - solute transport KW - sorption KW - desorption KW - contaminant plumes KW - isotopes KW - unsaturated zone KW - ground water KW - Cenozoic KW - reactivity KW - radioactive isotopes KW - mineral composition KW - movement KW - tracers KW - sediments KW - chemical composition KW - kinetics KW - geochemistry KW - soils KW - hydrology KW - experimental studies KW - Washington KW - Quaternary KW - pollutants KW - Columbia River KW - pollution KW - Hanford Site KW - electrolytes KW - hydrochemistry KW - aquifers KW - alkalic composition KW - models KW - metals KW - mathematical methods KW - theoretical models KW - Pleistocene KW - uranium KW - carbonates KW - actinides KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51520570?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Kinetic+desorption+and+sorption+of+U%28VI%29+during+reactive+transport+in+a+contaminated+Hanford+sediment&rft.au=Qafoku%2C+Nikolla+P%3BZachara%2C+John+M%3BLiu%2C+Chongxuan%3BGassman%2C+Paul+L%3BQafoku%2C+Odeta+S%3BSmith%2C+Steven+C&rft.aulast=Qafoku&rft.aufirst=Nikolla&rft.date=2005-05-01&rft.volume=39&rft.issue=9&rft.spage=3157&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes048462q L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 60 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; alkalic composition; aquifers; carbonates; Cenozoic; chemical composition; chemical fractionation; Columbia River; contaminant plumes; desorption; electrolytes; experimental studies; geochemistry; ground water; Hanford Site; hydrochemistry; hydrology; isotopes; kinetics; mathematical methods; metals; mineral composition; models; movement; Pleistocene; pollutants; pollution; Quaternary; radioactive isotopes; reactivity; sediments; soils; solute transport; sorption; theoretical models; tracers; United States; unsaturated zone; uranium; Washington DO - http://dx.doi.org/10.1021/es048462q ER - TY - JOUR T1 - Fate and transport of CL-20 and RDX in unsaturated laboratory columns AN - 51466102; 2007-032789 JF - Eos, Transactions, American Geophysical Union AU - LeMond, L A AU - Gamerdinger, A P AU - Szecsody, J E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H13B EP - 07 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - hydrology KW - sorption KW - experimental studies KW - degradation KW - CL-20 KW - pollutants KW - unsaturated zone KW - pollution KW - RDX KW - laboratory studies KW - triazines KW - organic compounds KW - explosives KW - transport KW - soil pollution KW - residence time KW - hydrodynamics KW - water content KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51466102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Fate+and+transport+of+CL-20+and+RDX+in+unsaturated+laboratory+columns&rft.au=LeMond%2C+L+A%3BGamerdinger%2C+A+P%3BSzecsody%2C+J+E%3BAnonymous&rft.aulast=LeMond&rft.aufirst=L&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - CL-20; degradation; experimental studies; explosives; geochemistry; hydrodynamics; hydrology; laboratory studies; organic compounds; pollutants; pollution; RDX; residence time; soil pollution; soils; sorption; transport; triazines; unsaturated zone; water content ER - TY - JOUR T1 - Identification of physical and chemical mass transfer processes by a tracer flush experiment AN - 51420712; 2007-064456 JF - Eos, Transactions, American Geophysical Union AU - Scheibe, T D AU - Brooks, S C AU - Kamolpornwijit, W AU - Fang, Y AU - Roden, E E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H51A EP - 02 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - solute transport KW - sorption KW - halogens KW - observation wells KW - ground water KW - transport KW - chloride ion KW - tracers KW - hydrodynamics KW - nitrate ion KW - mass transfer KW - heterogeneity KW - water pollution KW - geochemistry KW - chlorine KW - concentration KW - experimental studies KW - diffusion KW - pollutants KW - physicochemical properties KW - pollution KW - hydrochemistry KW - porosity KW - aquifers KW - metals KW - identification KW - uranium KW - hydraulic conductivity KW - actinides KW - pore water KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51420712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Identification+of+physical+and+chemical+mass+transfer+processes+by+a+tracer+flush+experiment&rft.au=Scheibe%2C+T+D%3BBrooks%2C+S+C%3BKamolpornwijit%2C+W%3BFang%2C+Y%3BRoden%2C+E+E%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=T&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; aquifers; chloride ion; chlorine; concentration; diffusion; experimental studies; field studies; geochemistry; ground water; halogens; heterogeneity; hydraulic conductivity; hydrochemistry; hydrodynamics; identification; mass transfer; metals; nitrate ion; observation wells; physicochemical properties; pollutants; pollution; pore water; porosity; solute transport; sorption; tracers; transport; uranium; water pollution ER - TY - JOUR T1 - Estimation of groundwater flow distribution in structured media from non-reactive tracer results under unsaturated condition AN - 51420147; 2007-064459 JF - Eos, Transactions, American Geophysical Union AU - Kamolpornwijit, W AU - Kim, Y AU - Brooks, S C AU - Scheibe, T D AU - Mayes, M A AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H51A EP - 05 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - sorption KW - diffusion KW - pollutants KW - one-dimensional models KW - unsaturated zone KW - pollution KW - distribution KW - ground water KW - saprolite KW - transport KW - tracers KW - velocity KW - hydrodynamics KW - hydraulic conductivity KW - water pollution KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51420147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Estimation+of+groundwater+flow+distribution+in+structured+media+from+non-reactive+tracer+results+under+unsaturated+condition&rft.au=Kamolpornwijit%2C+W%3BKim%2C+Y%3BBrooks%2C+S+C%3BScheibe%2C+T+D%3BMayes%2C+M+A%3BAnonymous&rft.aulast=Kamolpornwijit&rft.aufirst=W&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - diffusion; distribution; ground water; hydraulic conductivity; hydrodynamics; one-dimensional models; pollutants; pollution; pore water; saprolite; sorption; tracers; transport; unsaturated zone; velocity; water pollution ER - TY - JOUR T1 - Immobilization of uranium (VI) in structured saprolite with microbial U(VI) reduction AN - 51418211; 2007-064460 JF - Eos, Transactions, American Geophysical Union AU - Kim, Y AU - Brooks, S C AU - Kamolpornwijit, W AU - Scheibe, T D AU - Roden, E E AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - Abstract H51A EP - 06 PB - American Geophysical Union, Washington, DC VL - 86 IS - 18, Suppl. SN - 0096-3941, 0096-3941 KW - fractured materials KW - experimental studies KW - pollutants KW - biostimulation KW - pollution KW - layered materials KW - hexavalent uranium KW - ground water KW - saprolite KW - laboratory studies KW - biogenic processes KW - sedimentary rocks KW - chemical reactions KW - metals KW - uranium KW - reduction KW - water pollution KW - mobility KW - actinides KW - permeability KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51418211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Immobilization+of+uranium+%28VI%29+in+structured+saprolite+with+microbial+U%28VI%29+reduction&rft.au=Kim%2C+Y%3BBrooks%2C+S+C%3BKamolpornwijit%2C+W%3BScheibe%2C+T+D%3BRoden%2C+E+E%3BAnonymous&rft.aulast=Kim&rft.aufirst=Y&rft.date=2005-05-01&rft.volume=86&rft.issue=18%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2005 joint assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; biogenic processes; biostimulation; chemical reactions; experimental studies; fractured materials; ground water; hexavalent uranium; laboratory studies; layered materials; metals; microorganisms; mobility; permeability; pollutants; pollution; reduction; saprolite; sedimentary rocks; uranium; water pollution ER - TY - JOUR T1 - Vadose zone remediation by in-situ gaseous reduction AN - 50276485; 2006-065342 JF - Geochimica et Cosmochimica Acta AU - Thornton, Edward C AU - Zhong, L AU - Oostrom, M AU - Deng, B AU - Anonymous Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 820 PB - Elsevier, New York, NY VL - 69 IS - 10, Suppl. SN - 0016-7037, 0016-7037 KW - soils KW - experimental studies KW - in situ KW - unsaturated zone KW - soil treatment KW - pollution KW - hydrogen sulfide KW - remediation KW - hexavalent uranium KW - gases KW - hexavalent chromium KW - soil pollution KW - metals KW - sediments KW - testing KW - uranium KW - waste disposal KW - reactive barriers KW - actinides KW - disposal barriers KW - chromium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50276485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Vadose+zone+remediation+by+in-situ+gaseous+reduction&rft.au=Thornton%2C+Edward+C%3BZhong%2C+L%3BOostrom%2C+M%3BDeng%2C+B%3BAnonymous&rft.aulast=Thornton&rft.aufirst=Edward&rft.date=2005-05-01&rft.volume=69&rft.issue=10%2C+Suppl.&rft.spage=820&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 15th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; chromium; disposal barriers; experimental studies; gases; hexavalent chromium; hexavalent uranium; hydrogen sulfide; in situ; metals; pollution; reactive barriers; remediation; sediments; soil pollution; soil treatment; soils; testing; unsaturated zone; uranium; waste disposal ER - TY - JOUR T1 - Radiochemical sensor system for the analysis of 99Tc(VII) in groundwater AN - 19706158; 6642769 AB - Direct determination of 99Tc in groundwater using a sensor device represents a substantial challenge due to the short range of beta-particles, the presence of radiological interferences, and low-level detection requirements. This paper describes a radiochemical sensing method for selective detection of 99Tc(VII) in water. The sensing approach uses a dual-function composite sensor microcolumn that incorporates both selective sorption and scintillating properties. Analyte detection is carried out in a reagentless equilibration sensing regime using chemically unmodified groundwater. The sensor method was implemented in a prototypical probe device that integrates the sensor element, scintillation detection, data acquisition, and instrument control components in a single functional instrument compatible with a 3.5" well casing geometry. The feasibility of rapid 99Tc analysis in Hanford groundwater (Hanford Site, USA) below regulatory drinking water level of 33 Bq/l was demonstrated. JF - Journal of Radioanalytical and Nuclear Chemistry AU - Hartman, J AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 495 EP - 500 PB - Springer-Verlag (Heidelberg), Tiergartenstrasse 17 Heidelberg 69121 Germany, [mailto:subscriptions@springer.de], [URL:http://www.springer.de/] VL - 264 IS - 2 SN - 0236-5731, 0236-5731 KW - Aqualine Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Hydrological Regime KW - Sensors KW - Water sampling KW - Probes KW - Drinking Water KW - Data Acquisition KW - Data acquisition KW - Sorption KW - Well Casings KW - Sampling instruments KW - USA, Washington, Hanford Site KW - USA KW - Technetium KW - Scintillation KW - USA, Washington, Hanford KW - Radiation measurements KW - Drinking water KW - Groundwater KW - AQ 00007:Industrial Effluents KW - P 8000:RADIATION KW - P 2000:FRESHWATER POLLUTION KW - SW 0840:Groundwater KW - M2 556.3:Groundwater Hydrology (556.3) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19706158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.atitle=Radiochemical+sensor+system+for+the+analysis+of+%26lt%3BSuperscript%26gt%3B99%26lt%3B%2FSuperscript%26gt%3BTc%28VII%29+in+groundwater&rft.au=Hartman%2C+J&rft.aulast=Hartman&rft.aufirst=J&rft.date=2005-05-01&rft.volume=264&rft.issue=2&rft.spage=495&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=02365731&rft_id=info:doi/10.1007%2Fs10967-005-0743-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-08-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Scintillation; Data acquisition; Sorption; Technetium; Water sampling; Sensors; Radiation measurements; Sampling instruments; Groundwater; Drinking water; Hydrological Regime; Drinking Water; Data Acquisition; Probes; Well Casings; USA; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1007/s10967-005-0743-4 ER - TY - JOUR T1 - An improved optimization algorithm and a Bayes factor termination criterion for sequential projection pursuit AN - 19437167; 6667034 AB - A fundamental problem in analysis of highly multivariate spectral or chromatographic data is the reduction of dimensionality. Principal components analysis (PCA), concerned with explaining the variance-covariance structure of the data, is a commonly used approach to dimension reduction. Recently, an attractive alternative to PCA, sequential projection pursuit (SPP), has been introduced. Designed to elicit clustering tendencies in the data, SPP may be more appropriate when performing clustering or classification analysis. However, the existing genetic algorithm (GA) implementation of SPP has two shortcomings, computation time and inability to determine the number of factors necessary to explain the majority of the structure in the data. We address both these shortcomings. First, we introduce a new SPP algorithm, a random scan sampling algorithm (RSSA), that significantly reduces computation time. We compare the computational burden of the RSSA and GA implementation for SPP on a data set containing Raman spectra of 12 organic compounds. Second, we propose a Bayes factor criterion, BFC, as an effective measure for selecting the number of factors needed to explain the majority of the structure in the data. We compare SPP to PCA on two data sets varying in type, size, and difficulty; in both cases, SPP achieves a higher accuracy with a lower number of latent variables. JF - Chemometrics and Intelligent Laboratory Systems AU - Webb-Robertson, Bobbie-Jo M AU - Jarman, Kristin H AU - Harvey, Scott D AU - Posse, Christian AU - Wright, Bob W AD - Pacific Northwest National Laboratory, P.O. BOX 999, K5-12, Richland, WA 99352, United States, Bobbie-Jo.Webb-Robertson@pnl.gov Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 149 EP - 160 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 77 IS - 1-2 SN - 0169-7439, 0169-7439 KW - Biotechnology and Bioengineering Abstracts KW - Classification KW - Bayesian analysis KW - Principal components analysis KW - Algorithms KW - Organic compounds KW - Computer applications KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19437167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemometrics+and+Intelligent+Laboratory+Systems&rft.atitle=An+improved+optimization+algorithm+and+a+Bayes+factor+termination+criterion+for+sequential+projection+pursuit&rft.au=Webb-Robertson%2C+Bobbie-Jo+M%3BJarman%2C+Kristin+H%3BHarvey%2C+Scott+D%3BPosse%2C+Christian%3BWright%2C+Bob+W&rft.aulast=Webb-Robertson&rft.aufirst=Bobbie-Jo&rft.date=2005-05-01&rft.volume=77&rft.issue=1-2&rft.spage=149&rft.isbn=&rft.btitle=&rft.title=Chemometrics+and+Intelligent+Laboratory+Systems&rft.issn=01697439&rft_id=info:doi/10.1016%2Fj.chemolab.2004.09.014 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Algorithms; Bayesian analysis; Classification; Principal components analysis; Organic compounds; Computer applications DO - http://dx.doi.org/10.1016/j.chemolab.2004.09.014 ER - TY - JOUR T1 - Fall Chinook Salmon Spawning Activity versus Daylight and Flow in the Tailrace of a Large Hydroelectric Dam AN - 19418760; 6539599 AB - We deployed an acoustic system during the spawning season for fall Chinook salmon Oncorhynchus tshawytscha in 2001 to determine whether fall Chinook salmon spawning activity in a hydroelectric dam tailrace area was affected by daylight or river flow. Our study design allocated sampling effort nearly equally between hours of darkness and hours of daylight throughout each 24-h period. The acoustic system recorded sounds of fall Chinook salmon spawning activity in two index areas downstream of Wanapum Dam on the Columbia River in Washington State. One index area was a deepwater spawning site located in 9-11 m of water. The other index area was a moderate-depth midchannel bar, where water depths ranged from 2.5 to 6 m. We defined the rate of spawning activity in digs per minute. Fall Chinook salmon spawning activity rates in the Wanapum Dam tailrace were influenced by both daylight and river discharge, which had a pronounced nonlinear effect on spawning activity rates. To account for nonlinearity, a generalized additive model was used to characterize the combined effects of river flow and daylight. The final model also suggested that both flow and daylight influenced spawning activity. Spawning activity occurred during both daylight and darkness, significantly more activity occurring during daylight in both index areas. Spawning activity was generally highest at project discharges between 1,700 and 2,266 m super(3)/s in both spawning areas; spawning activity diminished as discharge increased from 3,400 to 4,250 m super(3)/s. We concluded that fall Chinook salmon spawning activity in this regulated discharge environment was affected more by flow (and velocity) than by daylight. JF - North American Journal of Fisheries Management AU - McMichael, Geoffrey A AU - McKinstry, CA AU - Vucelick, JA AU - Lukas, JA AD - Pacific Northwest National Laboratory, Ecology Group, Mail Stop K6-85, Post Office Box 999, Richland, Washington 99352, USA Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 573 EP - 580 PB - American Fisheries Society VL - 25 IS - 2 SN - 0275-5947, 0275-5947 KW - Chinook salmon KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources; Animal Behavior Abstracts; Ecology Abstracts KW - Photoperiods KW - Anadromous species KW - USA, Columbia R. KW - Hydroelectric Plants KW - Population dynamics KW - Oncorhynchus tshawytscha KW - Models KW - USA, Washington KW - Fishery management KW - Fishery surveys KW - Dams KW - Environmental effects KW - River Flow KW - Sampling KW - Reproductive behaviour KW - Salmon KW - Rivers KW - Acoustics KW - River discharge KW - Flow Discharge KW - Velocity KW - Acoustic arrays KW - Tailrace KW - Spawning KW - Model Studies KW - Stream flow KW - D 04700:Management KW - Q1 08422:Environmental effects KW - AQ 00008:Effects of Pollution KW - SW 6010:Structures KW - Y 25425:Fish UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19418760?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Fall+Chinook+Salmon+Spawning+Activity+versus+Daylight+and+Flow+in+the+Tailrace+of+a+Large+Hydroelectric+Dam&rft.au=McMichael%2C+Geoffrey+A%3BMcKinstry%2C+CA%3BVucelick%2C+JA%3BLukas%2C+JA&rft.aulast=McMichael&rft.aufirst=Geoffrey&rft.date=2005-05-01&rft.volume=25&rft.issue=2&rft.spage=573&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/10.1577%2FM04-044.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-02-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Fishery management; Photoperiods; Dams; Fishery surveys; Anadromous species; Environmental effects; River discharge; Acoustic arrays; Reproductive behaviour; Spawning; Population dynamics; Stream flow; Rivers; Velocity; Sampling; Models; Salmon; Acoustics; Flow Discharge; Hydroelectric Plants; River Flow; Tailrace; Model Studies; Oncorhynchus tshawytscha; USA, Washington; USA, Columbia R. DO - http://dx.doi.org/10.1577/M04-044.1 ER - TY - JOUR T1 - Improved proteome coverage by using high efficiency cysteinyl peptide enrichment: The human mammary epithelial cell proteome AN - 17530016; 6206814 AB - Automated multidimensional capillary liquid chromatography-tandem mass spectrometry (LC-MS/MS) has been increasingly applied in various large scale proteome profiling efforts. However, comprehensive global proteome analysis remains technically challenging due to issues associated with sample complexity and dynamic range of protein abundances, which is particularly apparent in mammalian biological systems. We report here the application of a high efficiency cysteinyl peptide enrichment (CPE) approach to the global proteome analysis of human mammary epithelial cells (HMECs) which significantly improved both sequence coverage of protein identifications and the overall proteome coverage. The cysteinyl peptides were specifically enriched by using a thiol- specific covalent resin, fractionated by strong cation exchange chromatography, and subsequently analyzed by reversed-phase capillary LC-MS/MS. An HMEC tryptic digest without CPE was also fractionated and analyzed under the same conditions for comparison. The combined analyses of HMEC tryptic digests with and without CPE resulted in a total of 14 416 confidently identified peptides covering 4294 different proteins with an estimated 10% gene coverage of the human genome. By using the high efficiency CPE, an additional 1096 relatively low abundance proteins were identified, resulting in 34.3% increase in proteome coverage; 1390 proteins were observed with increased sequence coverage. Comparative protein distribution analyses revealed that the CPE method is not biased with regard to protein M sub(r) , pI, cellular location, or biological functions. These results demonstrate that the use of the CPE approach provides improved efficiency in comprehensive proteome-wide analyses of highly complex mammalian biological systems. JF - Proteomics AU - Liu, Tao AU - Qian, Wei-Jun AU - Chen, Wan-Nan U AU - Jacobs, Jon M AU - Moore, Ronald J AU - Anderson, David J AU - Gritsenko, Marina A AU - Monroe, Matthew E AU - Thrall, Brian D AU - Camp, David G, II AU - Smith, Richard D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA, rds@pnl.gov Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 1263 EP - 1273 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 5 SN - 1615-9853, 1615-9853 KW - Automated multidimensional capillary liquid chromatography KW - cysteinyl peptide enrichment KW - man KW - tandem mass spectrometry KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Genomes KW - Epithelial cells KW - Chromatography KW - Mammary gland KW - proteomics KW - Identification KW - Mass spectroscopy KW - Amino acid sequence KW - W3 33340:Other proteins, peptides, amino acids KW - G 07432:Proteins KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17530016?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Improved+proteome+coverage+by+using+high+efficiency+cysteinyl+peptide+enrichment%3A+The+human+mammary+epithelial+cell+proteome&rft.au=Liu%2C+Tao%3BQian%2C+Wei-Jun%3BChen%2C+Wan-Nan+U%3BJacobs%2C+Jon+M%3BMoore%2C+Ronald+J%3BAnderson%2C+David+J%3BGritsenko%2C+Marina+A%3BMonroe%2C+Matthew+E%3BThrall%2C+Brian+D%3BCamp%2C+David+G%2C+II%3BSmith%2C+Richard+D&rft.aulast=Liu&rft.aufirst=Tao&rft.date=2005-05-01&rft.volume=5&rft.issue=5&rft.spage=1263&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401055 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Epithelial cells; Mammary gland; Mass spectroscopy; Genomes; Chromatography; proteomics; Amino acid sequence; Identification DO - http://dx.doi.org/10.1002/pmic.200401055 ER - TY - JOUR T1 - Proteomic analysis of Lyme disease: Global protein comparison of three strains of Borrelia burgdorferi AN - 17269966; 6206830 AB - The Borrelia burgdorferi spirochete is the causative agent of Lyme disease, the most common tick-borne disease in the United States. It has been studied extensively to help understand its pathogenicity of infection and how it can persist in different mammalian hosts. We report the proteomic analysis of the archetype B. burgdorferi B31 strain and two other strains (ND40, and JD-1) having different Borrelia pathotypes using strong cation exchange fractionation of proteolytic peptides followed by high-resolution, reversed phase capillary liquid chromatography coupled with ion trap tandem mass spectrometric analysis. Protein identification was facilitated by the availability of the complete B31 genome sequence. A total of 665 Borrelia proteins were identified representing ~38% coverage of the theoretical B31 proteome. A significant overlap was observed between the identified proteins in direct comparisons between any two strains (>72%), but distinct differences were observed among identified hypothetical and outer membrane proteins of the three strains. Such a concurrent proteomic overview of three Borrelia strains based upon only the B31 genome sequence is shown to provide significant insights into the presence or absence of specific proteins and a broad overall comparison among strains. JF - Proteomics AU - Jacobs, Jon M AU - Yang, Xiaohua AU - Luft, Benjamin J AU - Dunn, John J AU - Camp, David GII AU - Smith, Richard D AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA, rds@pnl.gov Y1 - 2005/05// PY - 2005 DA - May 2005 SP - 1446 EP - 1453 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 5 SN - 1615-9853, 1615-9853 KW - Microbiology Abstracts B: Bacteriology KW - Proteolysis KW - Genomes KW - outer membrane proteins KW - Borrelia burgdorferi KW - Nucleotide sequence KW - Spirochetes KW - Pathogenicity KW - Cations KW - Liquid chromatography KW - Reviews KW - tick-borne diseases KW - proteomics KW - Lyme disease KW - J 02855:Human Bacteriology: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17269966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Proteomic+analysis+of+Lyme+disease%3A+Global+protein+comparison+of+three+strains+of+Borrelia+burgdorferi&rft.au=Jacobs%2C+Jon+M%3BYang%2C+Xiaohua%3BLuft%2C+Benjamin+J%3BDunn%2C+John+J%3BCamp%2C+David+GII%3BSmith%2C+Richard+D&rft.aulast=Jacobs&rft.aufirst=Jon&rft.date=2005-05-01&rft.volume=5&rft.issue=5&rft.spage=1446&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401052 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Borrelia burgdorferi; proteomics; Lyme disease; Genomes; Nucleotide sequence; outer membrane proteins; Reviews; Proteolysis; Spirochetes; Cations; tick-borne diseases; Liquid chromatography; Pathogenicity DO - http://dx.doi.org/10.1002/pmic.200401052 ER - TY - JOUR T1 - Cryogenic laser induced U(VI) fluorescence studies of a U(VI) substituted natural calcite: implications to U(VI) speciation in contaminated Hanford sediments. AN - 67816488; 15884362 AB - Time-resolved laser-induced fluorescence spectroscopy (TRLFS) and imaging spectromicroscopy (TRLFISM) were used to examine the chemical speciation of uranyl in contaminated subsurface sediments from the U.S. Department of Energy (U.S. DOE) Hanford Site, Washington. Spectroscopic measurements for contaminant U(VI) were compared to those from a natural, uranyl-bearing calcite (NUC) that had been found via X-ray absorption spectroscopy (XAS) to include uranyl in the same coordination environment as calcium. Spectral deconvolution of TRLFS measurements on the NUC revealed the unexpected presence of two distinct chemical environments consistent with published spectra of U(VI)-substituted synthetic calcite and aragonite. Apparently, some U(VI) substitution sites in calcite distorted to exhibit a local, more energetically favorable aragonite structure. TRLFS measurements of the Hanford sediments NP4-1 and NP1-6 were similar to the NUC in terms of peak positions and intensity, despite a small CaCO3 content (1.0 to 3.2 mass %). Spectral deconvolution of the sediments revealed the presence of U(VI) in calcite and aragonite structural environments. A third, unidentified U(VI) species was also present in the NP1-6 sediment. TRLFISM measurements at multiple locations in the different sediments displayed only minor variation, indicating a uniform speciation pattern. Collectively, the measurements implied that waste U(VI), long-resident beneath the sampled disposal pond (32 y), had coprecipitated within carbonates. These findings have major implications for the solubility and fate of contaminant U(VI). JF - Environmental science & technology AU - Wang, Zheming AU - Zachara, John M AU - Mckinley, James P AU - Smith, Steven C AD - Pacific Northwest National Laboratory, Richland, Washington 99354, USA. zheming.wang@pnl.gov Y1 - 2005/04/15/ PY - 2005 DA - 2005 Apr 15 SP - 2651 EP - 2659 VL - 39 IS - 8 SN - 0013-936X, 0013-936X KW - Radioactive Waste KW - 0 KW - Soil Pollutants, Radioactive KW - Uranium Compounds KW - Calcium Carbonate KW - H0G9379FGK KW - Index Medicus KW - Environmental Monitoring KW - Washington KW - Spectrometry, X-Ray Emission KW - Solubility KW - Spectrometry, Fluorescence -- methods KW - X-Ray Diffraction KW - Chemical Precipitation KW - Lasers KW - Geologic Sediments -- chemistry KW - Uranium Compounds -- analysis KW - Calcium Carbonate -- chemistry KW - Geologic Sediments -- analysis KW - Uranium Compounds -- chemistry KW - Soil Pollutants, Radioactive -- analysis KW - Calcium Carbonate -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67816488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Cryogenic+laser+induced+U%28VI%29+fluorescence+studies+of+a+U%28VI%29+substituted+natural+calcite%3A+implications+to+U%28VI%29+speciation+in+contaminated+Hanford+sediments.&rft.au=Wang%2C+Zheming%3BZachara%2C+John+M%3BMckinley%2C+James+P%3BSmith%2C+Steven+C&rft.aulast=Wang&rft.aufirst=Zheming&rft.date=2005-04-15&rft.volume=39&rft.issue=8&rft.spage=2651&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-08-24 N1 - Date created - 2005-05-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Track structure in DNA irradiated with heavy ions. AN - 67570723; 15799701 AB - The spatial properties of trapped radicals produced in heavy-ion-irradiated solid DNA at 77 K have been probed using pulsed electron paramagnetic double resonance (PELDOR or DEER) techniques. Salmon testes DNA hydrated to 12 water molecules per nucleotide was irradiated with 40Ar ions of energy 100 MeV/nucleon and LET ranging from 300 to 400 keV/microm. Irradiated samples were maintained at cryogenic temperature at all times. PELDOR measurements were made using a refocused echo detection sequence that allows dipolar interaction between trapped radicals to be observed. The EPR spectrum is attributed to electron loss/gain DNA base radicals and neutral carbon-centered radicals that likely arise from sugar damage. We find a radical concentration of 13.5 x 10(18) cm(-3) in the tracks and a track radius of 6.79 nm. The cross section of these tracks is 144 nm2, yielding a lineal radical density of 2.6 radicals/nm. Based on the yields determined previously for particles having calculated LET values of 300-400 keV/microm and our measured lineal density, we obtain an LET of 270 keV/microm, which is in good agreement with the calculated range of values. These measurements of radical density and spatial extent provide the first direct experimental determination of track characteristics in irradiated DNA. JF - Radiation research AU - Bowman, Michael K AU - Becker, David AU - Sevilla, Michael D AU - Zimbrick, John D AD - Structural Biology and Microimaging, Pacific Northwest National Laboratory, Richland, Washington 99352-0999, USA. Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 447 EP - 454 VL - 163 IS - 4 SN - 0033-7587, 0033-7587 KW - DNA KW - 9007-49-2 KW - Index Medicus KW - Space life sciences KW - Salmon KW - Radiation Dosage KW - Nucleic Acid Conformation -- radiation effects KW - Animals KW - Dose-Response Relationship, Radiation KW - DNA Damage KW - Heavy Ions -- adverse effects KW - DNA -- analysis KW - DNA -- chemistry KW - DNA -- radiation effects KW - Linear Energy Transfer UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67570723?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Track+structure+in+DNA+irradiated+with+heavy+ions.&rft.au=Bowman%2C+Michael+K%3BBecker%2C+David%3BSevilla%2C+Michael+D%3BZimbrick%2C+John+D&rft.aulast=Bowman&rft.aufirst=Michael&rft.date=2005-04-01&rft.volume=163&rft.issue=4&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=00337587&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-05-18 N1 - Date created - 2005-03-31 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Toxicokinetics and oral bioavailability of halogenated acetic acids mixtures in naïve and GSTzeta-depleted rats. AN - 67541866; 15625187 AB - Disinfection of drinking water typically produces a mixture of mono-, di-, and tri-halogenated acetic acids (HAAs). In this study, we investigated the toxicokinetics of HAA mixtures in naive and glutathione transferase zeta 1 (GSTzeta)-depleted male F344 rats administered orally or iv to Mixture-1 (monobromo [MBAA]- dichloro- [DCAA], chlorodibromo- [CDBAA], tribromo- [TBAA] acetic acids) or Mixture-2 (bromochloro- [BCAA], dibromo- [DBAA], trichloro- [TCAA] bromodichloro- [BDCAA] acetic acids) at a dose of 25 micromol/kg HAA. Serial blood samples were collected at various times up to 36 h, and the plasma concentrations of each HAA quantified by GC-ECD. Rats were pretreated for 7 d with drinking water containing 0.2 g/l DCAA to deplete the GSTzeta (GSTZ1-1) activity in the liver. An additional group of GSTzeta-depleted rats were orally dosed with each mixture and euthanized at 0.25, 0.5, 1, 2, and 4 h to determine tissue distribution of mixture components. In both mixtures, GSTzeta depletion primarily affected the toxicokinetics of di-HAAs (DCAA, BCAA, and DBAA), with the total body clearance (Cl b) decreasing 3- to 10-fold. Interestingly, DCAA pretreatment appeared to increase the elimination of Mixture-2 tri-HAAs (TCAA and BDCAA). After oral administration, DCAA exhibited a complex time-course plasma profile with secondary peaks appearing long after completion of the initial absorption phase. This phenomenon coincided with elevated DCA levels in the lower portion of the GI tract compared to CDBAA and TBAA. Comparison of the results with previous studies employing similar or higher doses of individual HAAs indicated the primary difference in HAA toxicokinetics when administered as mixture was a reduction in Cl b. These results suggest competitive interactions between tri- and di-HAAs beyond what would be predicted from individual HAA studies. For di-HAAs, the total dose is important, as clearance is dose dependent due to competition for GSTzeta. When considering HAA dosimetry, importance should be placed on both the components of the mixture and prior exposure history to di-HAAs. JF - Toxicological sciences : an official journal of the Society of Toxicology AU - Saghir, Shakil A AU - Schultz, Irvin R AD - Battelle Pacific Northwest National Laboratory, Sequim, Washington 98352, USA. Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 214 EP - 224 VL - 84 IS - 2 SN - 1096-6080, 1096-6080 KW - Acetates KW - 0 KW - Disinfectants KW - Drug Combinations KW - Halogens KW - Gstz1 protein, rat KW - EC 2.5.1.- KW - Glutathione Transferase KW - EC 2.5.1.18 KW - Index Medicus KW - Rats KW - Administration, Oral KW - Animals KW - Rats, Inbred F344 KW - Injections, Intravenous KW - Area Under Curve KW - Male KW - Biological Availability KW - Acetates -- pharmacokinetics KW - Glutathione Transferase -- deficiency KW - Glutathione Transferase -- antagonists & inhibitors KW - Glutathione Transferase -- metabolism KW - Disinfectants -- pharmacokinetics KW - Halogens -- toxicity KW - Disinfectants -- toxicity KW - Acetates -- toxicity KW - Halogens -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67541866?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.atitle=Toxicokinetics+and+oral+bioavailability+of+halogenated+acetic+acids+mixtures+in+na%C3%AFve+and+GSTzeta-depleted+rats.&rft.au=Saghir%2C+Shakil+A%3BSchultz%2C+Irvin+R&rft.aulast=Saghir&rft.aufirst=Shakil&rft.date=2005-04-01&rft.volume=84&rft.issue=2&rft.spage=214&rft.isbn=&rft.btitle=&rft.title=Toxicological+sciences+%3A+an+official+journal+of+the+Society+of+Toxicology&rft.issn=10966080&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-07-11 N1 - Date created - 2005-03-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Determination of the uranium valence state in the brannerite structure using EELS, XPS, and EDX AN - 51656246; 2006-000940 JF - Physics and Chemistry of Minerals AU - Colella, M AU - Lumpkin, G R AU - Zhang, Z AU - Buck, E C AU - Smith, K L Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 52 EP - 64 PB - Springer-Verlag, Berlin-New York VL - 32 IS - 1 SN - 0342-1791, 0342-1791 KW - Spain KW - East Africa KW - natural materials KW - Europe KW - crystal structure KW - Iberian Peninsula KW - Western Zambia KW - brannerite KW - Switzerland KW - Southern Europe KW - Andalusia Spain KW - EELS spectra KW - Central Europe KW - Ticino Switzerland KW - oxides KW - valency KW - spectra KW - X-ray photoelectron spectra KW - synthetic materials KW - amorphous materials KW - X-ray spectra KW - TEM data KW - Zambia KW - metals KW - Cordoba Spain KW - Africa KW - uranium KW - crystal chemistry KW - EDX data KW - actinides KW - SEM data KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51656246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Determination+of+the+uranium+valence+state+in+the+brannerite+structure+using+EELS%2C+XPS%2C+and+EDX&rft.au=Colella%2C+M%3BLumpkin%2C+G+R%3BZhang%2C+Z%3BBuck%2C+E+C%3BSmith%2C+K+L&rft.aulast=Colella&rft.aufirst=M&rft.date=2005-04-01&rft.volume=32&rft.issue=1&rft.spage=52&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-004-0444-5 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - actinides; Africa; amorphous materials; Andalusia Spain; brannerite; Central Europe; Cordoba Spain; crystal chemistry; crystal structure; East Africa; EDX data; EELS spectra; Europe; Iberian Peninsula; metals; natural materials; oxides; SEM data; Southern Europe; Spain; spectra; Switzerland; synthetic materials; TEM data; Ticino Switzerland; uranium; valency; Western Zambia; X-ray photoelectron spectra; X-ray spectra; Zambia DO - http://dx.doi.org/10.1007/s00269-004-0444-5 ER - TY - JOUR T1 - Lithofacies mapping at the Hanford Site; data management, analysis, and visualization AN - 51583495; 2006-046072 AB - Prediction of contaminant flow and transport is critical to remediation of contaminated sites. Flow and transport models typically require parameterization at grid block scales ranging from 0.1 m to 10's of m, depending on the dimensionality and size of the problem domain. Information on the spatial distribution and heterogeneity of the subsurface properties that control flow and transport is often very limited. However, understanding of the sedimentary geology and particularly the spatial distribution of lithofacies can be used to constrain estimates on the spatial distribution and heterogeneity of key subsurface properties. Borehole data are the cornerstone of subsurface characterization, monitoring, and performance assessment programs. These data often take great effort and expense to generate. Yet, historically they have been managed in an ad hoc fashion, using a wide variety of formats (generally non-digital) and scattered across individual project records. The Groundwater Remediation Project is developing an integrated borehole geology data management, analysis, and visualization system to maximize the value of these data. HBGIS (Hanford Borehole Geologic Information System) is a secure online web application designed to connect directly to several existing databases and facilitate data export to a variety of commercially available or specialized data processing applications. Visualization and analysis of multiple borehole geologic data sets in concert with outcrop studies and basin-wide sedimentary geologic modeling provides the foundation for estimating the spatial distribution of lithofacies. Petrophysical and geochemical analyses of samples from key lithofacies provide the data sets with which to derive the parametric probability-distribution functions for the petrophysical and geochemical properties, as well as the spatial correlations (i.e., heterogeneity, anisotropy) within each lithofacies. Thus, by estimating the spatial distribution and the parametric properties within each lithofacies, we have been able to improve the resolution and spatial distribution of critical flow and transport properties at a plutonium and carbon tetrachloride contaminated site. JF - Abstracts with Programs - Geological Society of America AU - Last, George V AU - Murray, Christopher J AU - Rockhold, Mark L AU - Thorne, Paul D AU - Bjornstad, Bruce N AU - Mackley, Robert D AU - Truex, Michael J AU - Oostrom, Mart AU - Anonymous Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 75 EP - 76 PB - Geological Society of America (GSA), Boulder, CO VL - 37 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - information management KW - remediation KW - radioactive waste KW - data management KW - visualization KW - spatial distribution KW - lithofacies KW - boreholes KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51583495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Lithofacies+mapping+at+the+Hanford+Site%3B+data+management%2C+analysis%2C+and+visualization&rft.au=Last%2C+George+V%3BMurray%2C+Christopher+J%3BRockhold%2C+Mark+L%3BThorne%2C+Paul+D%3BBjornstad%2C+Bruce+N%3BMackley%2C+Robert+D%3BTruex%2C+Michael+J%3BOostrom%2C+Mart%3BAnonymous&rft.aulast=Last&rft.aufirst=George&rft.date=2005-04-01&rft.volume=37&rft.issue=4&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 101st annual meeting; American Association of Petroleum Geologists, Pacific Section, 80th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2006-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - boreholes; data management; Hanford Site; information management; lithofacies; pollutants; pollution; radioactive waste; remediation; spatial distribution; United States; visualization; Washington; waste disposal ER - TY - JOUR T1 - Conceptual and numerical model of uranium(VI) reductive immobilization fracture subsurface sediments AN - 51499548; 2007-013284 JF - Chemosphere (Oxford) AU - Roden, Eric E AU - Scheibe, Timothy D Y1 - 2005/04// PY - 2005 DA - April 2005 SP - 617 EP - 628 PB - Elsevier VL - 59 IS - 5 SN - 0045-6535, 0045-6535 KW - fractured materials KW - biodegradation KW - desorption KW - numerical models KW - isotopes KW - pollution KW - migration of elements KW - aqueous solutions KW - simulation KW - radioactive isotopes KW - metals KW - bacteria KW - sediments KW - theoretical models KW - uranium KW - reduction KW - U-238 KW - mobility KW - kinetics KW - actinides KW - pore water KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51499548?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere+%28Oxford%29&rft.atitle=Conceptual+and+numerical+model+of+uranium%28VI%29+reductive+immobilization+fracture+subsurface+sediments&rft.au=Roden%2C+Eric+E%3BScheibe%2C+Timothy+D&rft.aulast=Roden&rft.aufirst=Eric&rft.date=2005-04-01&rft.volume=59&rft.issue=5&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Chemosphere+%28Oxford%29&rft.issn=00456535&rft_id=info:doi/10.1016%2Fj.chemosphere.2004.11.007 L2 - http://www.sciencedirect.com/science/journal/00456535 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CMSHAF N1 - SubjectsTermNotLitGenreText - actinides; aqueous solutions; bacteria; biodegradation; desorption; fractured materials; isotopes; kinetics; metals; migration of elements; mobility; numerical models; pollution; pore water; radioactive isotopes; reduction; sediments; simulation; theoretical models; U-238; uranium DO - http://dx.doi.org/10.1016/j.chemosphere.2004.11.007 ER - TY - JOUR T1 - Combining capillary electrophoresis with mass spectrometry for applications in proteomics AN - 20638854; 7762267 AB - Mass spectrometry (MS)-based proteomics is currently dominated by the analysis of peptides originating either from digestion of proteins separated by two-dimensional gel electrophoresis (2-DE) or from global digestion; the simple peptide mixtures obtained from digestion of gel-separated proteins do not usually require further separation, while the complex peptide mixtures obtained by global digestion are most frequently separated by chromatographic techniques. Capillary electrophoresis (CE) provides alternatives to 2-DE for protein separation and alternatives to chromatography for peptide separation. This review attempts to elucidate how the most promising CE modes, capillary zone electrophoresis (CZE) and capillary isoelectric focusing (CIEF), might best be applied to MS-based proteomics. CE-MS interfacing, mass analyzer performance, column coating to minimize analyte adsorption, and sample stacking for CZE are considered prior to examining numerous applications. Finally, multidimensional systems that incorporate CE techniques are examined; CZE often finds use as a fast, final dimension before ionization for MS, while CIEF, being an equilibrium technique, is well-suited to being the first dimension in automated fractionation systems. JF - Electrophoresis AU - Simpson, David C AU - Smith, Richard D AD - Pacific Northwest National Laboratory, Richland, WA, USA, rds@pnl.gov Y1 - 2005/04// PY - 2005 DA - Apr 2005 SP - 1291 EP - 1305 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 26 IS - 7-8 SN - 0173-0835, 0173-0835 KW - Biotechnology Research Abstracts (through 1992) KW - Chromatography KW - Stacking KW - Isoelectric focusing KW - Gel electrophoresis KW - Mass spectroscopy KW - Digestion KW - Reviews KW - Adsorption KW - capillary electrophoresis KW - proteomics KW - Ionization KW - Coatings KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20638854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Electrophoresis&rft.atitle=Combining+capillary+electrophoresis+with+mass+spectrometry+for+applications+in+proteomics&rft.au=Simpson%2C+David+C%3BSmith%2C+Richard+D&rft.aulast=Simpson&rft.aufirst=David&rft.date=2005-04-01&rft.volume=26&rft.issue=7-8&rft.spage=1291&rft.isbn=&rft.btitle=&rft.title=Electrophoresis&rft.issn=01730835&rft_id=info:doi/10.1002%2Felps.200410132 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-12-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Digestion; proteomics; Mass spectroscopy; capillary electrophoresis; Stacking; Reviews; Ionization; Gel electrophoresis; Coatings; Isoelectric focusing; Chromatography; Adsorption DO - http://dx.doi.org/10.1002/elps.200410132 ER - TY - JOUR T1 - Simultaneous Force and Fluorescence Measurements of a Protein That Forms a Bond between a Living Bacterium and a Solid Surface AN - 17619780; 6189722 AB - All microbial biofilms are initiated through direct physical contact between a bacterium and a solid surface, a step that is controlled by inter-and intramolecular forces. Atomic force microscopy and confocal laser scanning microscopy were used simultaneously to observe the formation of a bond between a fluorescent chimeric protein on the surface of a living Escherichia coli bacterium and a solid substrate in situ. The chimera was composed of a portion of outer membrane protein A (OmpA) fused to the cyan-fluorescent protein AmCyan. Sucrose gradient centrifugation and fluorescent confocal slices through bacteria demonstrated that the chimeric protein was targeted and anchored to the external cell surface. The wormlike chain theory predicted that this protein should exhibit a nonlinear force-extension "signature" consistent with the sequential unraveling of the AmCyan and OmpA domains. Experimentally measured force- extension curves revealed a unique pair of "sawtooth" features that were present when a bond formed between a silicon nitride surface (atomic force microscopy tip) and E. coli cells expressing the OmpA-AmCyan protein. The observed sawtooth pair closely matched the wormlike chain model prediction for the mechanical unfolding of the AmCyan and OmpA substructures in series. These sawteeth disappeared from the measured force-extension curves when cells were treated with proteinase K. Furthermore, these unique sawteeth were absent for a mutant stain of E. coli incapable of expressing the AmCyan protein on its outer surface. Together, these data show that specific proteins exhibit unique force signatures characteristic of the bond that is formed between a living bacterium and another surface. JF - Journal of Bacteriology AU - Lower, Brian H AU - Yongsunthon, Ruchirej AU - Vellano, FPaul AU - Lower, Steven K AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington. Ohio State University, Columbus, Ohio Y1 - 2005/03/15/ PY - 2005 DA - 2005 Mar 15 SP - 2127 EP - 2137 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 187 IS - 6 SN - 0021-9193, 0021-9193 KW - Microbiology Abstracts B: Bacteriology; Genetics Abstracts KW - G 07320:Bacterial genetics KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17619780?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Simultaneous+Force+and+Fluorescence+Measurements+of+a+Protein+That+Forms+a+Bond+between+a+Living+Bacterium+and+a+Solid+Surface&rft.au=Lower%2C+Brian+H%3BYongsunthon%2C+Ruchirej%3BVellano%2C+FPaul%3BLower%2C+Steven+K&rft.aulast=Lower&rft.aufirst=Brian&rft.date=2005-03-15&rft.volume=187&rft.issue=6&rft.spage=2127&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-07-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - An assessment of drinking-water supplies on the Hanford site: an evaluation conducted at a federal nuclear facility in southeastern Washington state. AN - 67566060; 15794463 AB - Drinking water is supplied to most U.S. Department of Energy (DOE) facilities on the Hanford Site by DOE-owned, contractor-operated pumping and distribution systems. Water is primarily obtained from the Columbia River, but some facilities use water from on-site groundwater wells. Because of the large amount of radioactive and chemical waste produced, stored, and disposed of at Hanford, some people are concerned that waste materials are contaminating on-site drinking-water supplies. This paper describes the drinking-water facilities and treatment requirements on the Hanford Site and summarizes radiological and non-radiological water quality data obtained from water samples collected from each drinking-water system in use during 2001 and 2002. Monitoring data show that Hanford-produced radionuclides are measurable in some drinking-water samples. The only non-radiological contaminants detected either were by-products of the chlorination process or came from off-site agricultural activities. Contaminant level values were, in all cases, below state and federal drinking-water limits. This information will provide assurance to current employees and future site developers that drinking water on the Hanford Site is safe for public consumption. JF - Journal of environmental health AU - Hanf, R William AU - Kelly, Lynn M AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. bill.hanf@pnl.gov Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 44 EP - 49 VL - 67 IS - 7 SN - 0022-0892, 0022-0892 KW - Radioactive Waste KW - 0 KW - Water Pollutants, Radioactive KW - Index Medicus KW - Environmental Monitoring KW - Agriculture KW - Washington KW - Waste Management KW - Humans KW - Water Purification KW - Water Supply -- standards KW - Water Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67566060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+environmental+health&rft.atitle=An+assessment+of+drinking-water+supplies+on+the+Hanford+site%3A+an+evaluation+conducted+at+a+federal+nuclear+facility+in+southeastern+Washington+state.&rft.au=Hanf%2C+R+William%3BKelly%2C+Lynn+M&rft.aulast=Hanf&rft.aufirst=R&rft.date=2005-03-01&rft.volume=67&rft.issue=7&rft.spage=44&rft.isbn=&rft.btitle=&rft.title=Journal+of+environmental+health&rft.issn=00220892&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-06-07 N1 - Date created - 2005-03-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Actinide sequestration using self-assembled monolayers on mesoporous supports. AN - 67545636; 15787373 AB - Surfactant templated synthesis of mesoporous ceramics provides a versatile foundation upon which to create high efficiency environmental sorbents. These nanoporous ceramic oxides condense a huge amount of surface area into a very small volume. The ceramic oxide interface is receptive to surface functionalization through molecular self-assembly. The marriage of mesoporous ceramics with self-assembled monolayer chemistry creates a powerful new class of environmental sorbent materials called self-assembled monolayers on mesoporous supports (SAMMS). These SAMMS materials are highly efficient sorbents whose interfacial chemistry can be fine-tuned to selectively sequester a specific target species, such as heavy metals, tetrahedral oxometalate anions, and radionuclides. Details addressing the design, synthesis, and characterization of SAMMS materials specifically designed to sequester actinides, of central importance to the environmental cleanup necessary after 40 years of weapons-grade plutonium production, as well as evaluation of their binding affinities and kinetics are presented. JF - Environmental science & technology AU - Fryxell, Glen E AU - Lin, Yuehe AU - Fiskum, Sandy AU - Birnbaum, Jerome C AU - Wu, Hong AU - Kemner, Ken AU - Kelly, Shelley AD - Materials Synthesis & Modification Group, Pacific Northwest National Laboratory, P.O. Box 999, Mailstop K2-44, Richland, Washington 99352, USA. glen.fryxell@pnl.gov Y1 - 2005/03/01/ PY - 2005 DA - 2005 Mar 01 SP - 1324 EP - 1331 VL - 39 IS - 5 SN - 0013-936X, 0013-936X KW - Actinoid Series Elements KW - 0 KW - Water Pollutants KW - Index Medicus KW - Porosity KW - Adsorption KW - Materials Testing KW - Ceramics KW - Actinoid Series Elements -- chemistry KW - Actinoid Series Elements -- isolation & purification KW - Water Pollutants -- isolation & purification KW - Nanostructures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67545636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Actinide+sequestration+using+self-assembled+monolayers+on+mesoporous+supports.&rft.au=Fryxell%2C+Glen+E%3BLin%2C+Yuehe%3BFiskum%2C+Sandy%3BBirnbaum%2C+Jerome+C%3BWu%2C+Hong%3BKemner%2C+Ken%3BKelly%2C+Shelley&rft.aulast=Fryxell&rft.aufirst=Glen&rft.date=2005-03-01&rft.volume=39&rft.issue=5&rft.spage=1324&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-06-07 N1 - Date created - 2005-03-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Bioreduction of natural specular hematite under flow conditions AN - 51733201; 2005-027001 AB - Dissimilatory reduction of Fe(III) by Shewanella oneidensis MR-1 was evaluated using natural specular hematite as sole electron acceptor in an open system under dynamic flow conditions to obtain a better understanding of biologic Fe(III) reduction in the natural environment. During initial exposure to hematite under advective flow conditions, cells exhibited a transient association with the mineral characterized by a rapid rate of attachment followed by a comparable rate of detachment before entering a phase of surface colonization that was slower but steadier than that observed initially. Accumulation of cells on the hematite surface was accompanied by the release of soluble Fe(II) into the aqueous phase when no precautions were taken to remove amorphous Fe(III) from the mineral surface before colonization. During the period of surface colonization following the detachment phase, cell yield was estimated at 1.5-4X10 (super 7) cells/mu mol Fe(II) produced, which is similar to that reported in studies conducted in closed systems. This yield does not take into account those cells that detached during this phase or the Fe(II) that remained associated with the hematite surface. Hematite reduction by the bacterium led to localized surface pitting and localized discrete areas where Fe (II) precipitation occurred. The cleavage plane of hematite left behind after bacterial reduction, as revealed by our results, strongly suggests, that heterogeneous energetics of the mineral surface play a strong role in this bioprocess. AQDS, an electron shuttle shown to stimulate bioreduction of Fe(III) in other studies, inhibited reduction of hematite by this bacterium under the dynamic flow conditions employed in the current study. JF - Geochimica et Cosmochimica Acta AU - Gonzalez-Gil, G AU - Amonette, J E AU - Romine, M F AU - Gorby, Y A AU - Geesey, G G Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 1145 EP - 1155 PB - Pergamon, Oxford VL - 69 IS - 5 SN - 0016-7037, 0016-7037 KW - respiration KW - Shewanella KW - iron KW - remediation KW - hematite KW - Shewanella oneidensis KW - movement KW - oxides KW - spectra KW - reduction KW - geochemistry KW - pollutants KW - biochemistry KW - pollution KW - solubility KW - bioremediation KW - X-ray spectra KW - specularite KW - biogenic processes KW - precipitation KW - microscope methods KW - metals KW - bacteria KW - synchrotrons KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Bioreduction+of+natural+specular+hematite+under+flow+conditions&rft.au=Gonzalez-Gil%2C+G%3BAmonette%2C+J+E%3BRomine%2C+M+F%3BGorby%2C+Y+A%3BGeesey%2C+G+G&rft.aulast=Gonzalez-Gil&rft.aufirst=G&rft.date=2005-03-01&rft.volume=69&rft.issue=5&rft.spage=1145&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.08.014 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; biogenic processes; bioremediation; geochemistry; hematite; iron; metals; microscope methods; movement; oxides; pollutants; pollution; precipitation; reduction; remediation; respiration; Shewanella; Shewanella oneidensis; solubility; spectra; specularite; synchrotrons; X-ray spectra DO - http://dx.doi.org/10.1016/j.gca.2004.08.014 ER - TY - JOUR T1 - Ferrous hydroxy carbonate is a stable transformation product of biogenic magnetite AN - 51725272; 2005-030928 AB - An approximately 1:1 mixture of ferrihydrite and nanocrystalline akaganeite was incubated with Shewanella putrefaciens (strain CN32) under anoxic conditions with lactate as an electron donor and anthraquinone-2,6-disulphonate (AQDS) as an electron shuttle. The biogenic reduction of Fe (super 3+) was rapid, with 60 % of the total Fe reduced in 1 day; only an additional 10 % of Fe (sub TOT) was reduced over the next 3 years. A fine-grained ( approximately 10 nm) cation excess magnetite with a Fe (super 2+) /Fe (sub TOT) ratio of 0.5-0.6 was the only biogenic product after 1 day of incubation. This magnetite was unstable and partially transformed to micrmetre-sized ferrous hydroxy carbonate, a rosasite-type mineral, with time. Ferrous hydroxy carbonate eventually dominated the mineral composition of the 3-year incubated sample. JF - American Mineralogist AU - Kukkadapu, Ravi K AU - Zachara, John M AU - Fredrickson, James K AU - Kennedy, David W AU - Dohnalkova, Alice C AU - McCready, David E Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 510 EP - 515 PB - Mineralogical Society of America, Washington, DC VL - 90 IS - 2-3 SN - 0003-004X, 0003-004X KW - X-ray diffraction data KW - geomicrobiology KW - Shewanella putrefaciens KW - biogenic processes KW - bacteria KW - oxides KW - spectra KW - transformations KW - carbonates KW - SEM data KW - Mossbauer spectra KW - microorganisms KW - magnetite KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51725272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Ferrous+hydroxy+carbonate+is+a+stable+transformation+product+of+biogenic+magnetite&rft.au=Kukkadapu%2C+Ravi+K%3BZachara%2C+John+M%3BFredrickson%2C+James+K%3BKennedy%2C+David+W%3BDohnalkova%2C+Alice+C%3BMcCready%2C+David+E&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2005-03-01&rft.volume=90&rft.issue=2-3&rft.spage=510&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2005.1727 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2005-01-01 N1 - Number of references - 36 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; carbonates; geomicrobiology; magnetite; microorganisms; Mossbauer spectra; oxides; SEM data; Shewanella putrefaciens; spectra; transformations; X-ray diffraction data DO - http://dx.doi.org/10.2138/am.2005.1727 ER - TY - JOUR T1 - Fluorescence spectroscopy of U(VI)-silicates and U(VI)-contaminated Hanford sediment AN - 51620325; 2006-022138 AB - Time-resolved U(VI) laser fluorescence spectra (TRLFS) were recorded for a series of natural uranium-silicate minerals including boltwoodite, uranophane, soddyite, kasolite, sklodowskite, cuprosklodowskite, haiweeite, and weeksite, a synthetic boltwoodite, and four U(VI)-contaminated Hanford vadose zone sediments. Lowering the sample temperature from RT to approximately 5.5 K significantly enhanced the fluorescence intensity and spectral resolution of both the minerals and sediments, offering improved possibilities for identifying uranyl species in environmental samples. At 5.5 K, all of the uranyl silicates showed unique, well-resolved fluorescence spectra. The symmetric O = U = O stretching frequency, as determined from the peak spacing of the vibronic bands in the emission spectra, were between 705 to 823 cm (super 1) for the uranyl silicates. These were lower than those reported for uranyl phosphate, carbonate, or oxy-hydroxides. The fluorescence emission spectra of all four sediment samples were similar to each other. Their spectra shifted minimally at different time delays or upon contact with basic Na/Ca-carbonate electrolyte solutions that dissolved up to 60% of the precipitated U(VI) pool. The well-resolved vibronic peaks in the fluorescence spectra of the sediments indicated that the major fluorescence species was a crystalline uranyl mineral phase, while the peak spacing of the vibronic bands pointed to the likely presence of uranyl silicate. Although an exact match was not found between the U(VI) fluorescence spectra of the sediments with that of any individual uranyl silicates, the major spectral characteristics indicated that the sediment U(VI) was a uranophane-type solid (uranophane, boltwoodite) or soddyite, as was concluded from microprobe, EXAFS, and solubility analyses. JF - Geochimica et Cosmochimica Acta AU - Wang, Zheming AU - Zachara, John M AU - Gassman, Paul L AU - Liu, Chongxuan AU - Qafoku, Odeta AU - Yantasee, Wassana AU - Catalano, Jeffrey G Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 1391 EP - 1403 PB - Pergamon, Oxford VL - 69 IS - 6 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - laser methods KW - X-ray diffraction data KW - isotopes KW - unsaturated zone KW - temperature KW - radioactive isotopes KW - sediments KW - orthosilicates KW - X-ray fluorescence spectra KW - oxides KW - spectra KW - mineral assemblages KW - chemical composition KW - geochemistry KW - chemical ratios KW - soils KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - migration of elements KW - kasolite KW - nesosilicates KW - dissolved materials KW - precipitation KW - metals KW - EXAFS data KW - uranium KW - mobilization KW - U-238 KW - uranophane KW - carbonates KW - actinides KW - SEM data KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51620325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Fluorescence+spectroscopy+of+U%28VI%29-silicates+and+U%28VI%29-contaminated+Hanford+sediment&rft.au=Wang%2C+Zheming%3BZachara%2C+John+M%3BGassman%2C+Paul+L%3BLiu%2C+Chongxuan%3BQafoku%2C+Odeta%3BYantasee%2C+Wassana%3BCatalano%2C+Jeffrey+G&rft.aulast=Wang&rft.aufirst=Zheming&rft.date=2005-03-01&rft.volume=69&rft.issue=6&rft.spage=1391&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.08.028 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 68 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; carbonates; chemical composition; chemical ratios; dissolved materials; EXAFS data; geochemistry; Hanford Site; isotopes; kasolite; laser methods; metals; migration of elements; mineral assemblages; mobilization; nesosilicates; orthosilicates; oxides; pollutants; pollution; precipitation; radioactive isotopes; sediments; SEM data; silicates; soils; spectra; temperature; U-238; United States; unsaturated zone; uranium; uranophane; Washington; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1016/j.gca.2004.08.028 ER - TY - JOUR T1 - The influence of edge sites on the development of surface charge on goethite nanoparticles, a molecular dynamics investigation AN - 51619700; 2006-022139 AB - Large-scale molecular simulation of proton accumulations were carried out on (i) (110) and (021) slabs immersed in aqueous solution and (ii) a series of model goethite nanoparticles of dimension 2 to 8 nm with systematically varying acicularity and (110)/(021) surface areas. In the slab systems, the (021) surface exhibits 15% more proton charge per unit area than the (110) surface. In the particulate systems, the acicular particles having the highest (110)/(021) ratio accumulate the most charge, opposite to the trend expected from the slab simulations, indicating that, at length scales on the order of 10 nm, the slab results are not a good indicator of the overall charging behavior of the particles. The primary reason for the discrepancy between the particulate systems and slab systems is the preferential accumulation of protons at acute (110)-(110) intersections. Charge accumulates preferentially in this region because excess proton charge at an asperity is more effectively solvated than at a flat interface. JF - Geochimica et Cosmochimica Acta AU - Rustad, James R AU - Felmy, Andrew R Y1 - 2005/03// PY - 2005 DA - March 2005 SP - 1405 EP - 1411 PB - Pergamon, Oxford VL - 69 IS - 6 SN - 0016-7037, 0016-7037 KW - surface properties KW - goethite KW - properties KW - aqueous solutions KW - protons KW - simulation KW - molecular structure KW - chemical reactions KW - oxides KW - molecular dynamics KW - chemical composition KW - nanoparticles KW - mobility KW - geochemistry KW - particles KW - Eh KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51619700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+influence+of+edge+sites+on+the+development+of+surface+charge+on+goethite+nanoparticles%2C+a+molecular+dynamics+investigation&rft.au=Rustad%2C+James+R%3BFelmy%2C+Andrew+R&rft.aulast=Rustad&rft.aufirst=James&rft.date=2005-03-01&rft.volume=69&rft.issue=6&rft.spage=1405&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.08.030 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 47 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; chemical composition; chemical reactions; Eh; geochemistry; goethite; mobility; molecular dynamics; molecular structure; nanoparticles; oxides; particles; properties; protons; simulation; surface properties DO - http://dx.doi.org/10.1016/j.gca.2004.08.030 ER - TY - JOUR T1 - Role of Sampling Designs in Obtaining Representative Data AN - 16193822; 6227238 AB - Representative environmental data are necessary to make defensible environmental decisions. Representative data can be obtained using unbiased sampling designs developed in the context of the project to achieve sampling objectives with required confidence and minimal cost. This article stresses the importance of systematic planning and an adequate conceptual site model to develop an appropriate sampling design. Various sampling designs are discussed and examples are used to illustrate sampling designs for various sampling objectives. JF - Environmental Forensics AU - Gilbert, RO AU - Pulsipher, BA AD - Pacific Northwest National Laboratory, Rockville, MD, USA Y1 - 2005/03// PY - 2005 DA - Mar 2005 SP - 27 EP - 33 VL - 6 IS - 1 SN - 1527-5922, 1527-5922 KW - Pollution Abstracts KW - Data collection KW - Environmental information KW - Quality control KW - decision making KW - Sampling methods KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16193822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Forensics&rft.atitle=Role+of+Sampling+Designs+in+Obtaining+Representative+Data&rft.au=Gilbert%2C+RO%3BPulsipher%2C+BA&rft.aulast=Gilbert&rft.aufirst=RO&rft.date=2005-03-01&rft.volume=6&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Environmental+Forensics&rft.issn=15275922&rft_id=info:doi/10.1080%2F15275920590913895 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-06-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Environmental information; Data collection; Quality control; decision making; Sampling methods DO - http://dx.doi.org/10.1080/15275920590913895 ER - TY - JOUR T1 - Income and Pollutant Emissions in the ObjECTS MiniCAM Model AN - 16191396; 6177053 AB - This article examines the relationship between income and pollutant emissions in the O super(bj)ECTS Mini Climate Assessment Model (MiniCAM) to determine how historical analysis can best guide modeling efforts. Future scenarios for energy-related emissions of nitrous oxide (NO sub(x)) and sulfur dioxide (SO sub(2))are presented along with the methodology used. A pseudo-Kuznets approach is used where the level of emission control is assumed to vary with per capita income. Emission results depend on the assumptions for when emission controls are implemented and the stringency of those controls. Historical analysis of the relationship between income and emission controls might be particularly useful in informing the parameterization of when emission controls are implemented. However, historical analysis is likely to be less helpful in informing the selection of parameters for the future levels of control, particularly at future times when parameter values are well outside the range of historical experience. JF - Journal of Environment and Development AU - Smith, Steven J AD - Joint Global Change Research Institute (Pacific Northwest National Laboratory [PNNL] and the University of Maryland) Y1 - 2005/03// PY - 2005 DA - Mar 2005 SP - 175 EP - 196 PB - Sage Publications, Inc., 2455 Teller Road Thousand Oaks CA 91320 USA, [mailto:info@sagepub.com], [URL:http://www.sagepub.com/] VL - 14 IS - 1 SN - 1070-4965, 1070-4965 KW - Sustainability Science Abstracts; Pollution Abstracts KW - Historical account KW - Sulfur dioxide KW - Nitrous oxide KW - Climate KW - Socioeconomics KW - Emission control KW - Air pollution control KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environment+and+Development&rft.atitle=Income+and+Pollutant+Emissions+in+the+ObjECTS+MiniCAM+Model&rft.au=Smith%2C+Steven+J&rft.aulast=Smith&rft.aufirst=Steven&rft.date=2005-03-01&rft.volume=14&rft.issue=1&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environment+and+Development&rft.issn=10704965&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-07-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Historical account; Sulfur dioxide; Nitrous oxide; Climate; Socioeconomics; Air pollution control; Emission control ER - TY - JOUR T1 - The catalytic chemistry of HCN + NO2 over Na- and Ba-Y,FAU: an in situ FTIR and TPD/TPR study. AN - 70175169; 16851119 AB - The adsorption of HCN and the reaction of HCN with NO(2) over Na-, and Ba-Y,FAU zeolite catalysts were investigated using in situ FTIR and TPD/TPR spectroscopies. Both catalysts adsorb HCN molecularly at room temperature, and the strength of adsorption is higher over Ba-Y than Na-Y. Over Na-Y, the reaction between HCN and NO(2) is slow at 473 K. On Ba-Y, HCN reacts readily with NO(2) at 473K, forming N(2), CO, CO(2), HNCO, NO, N(2)O, and C(2)N(2). The results of this investigation suggest that initial step in the HCN + NO(2) reaction over these catalysts is the hydrogen abstraction from HCN, and the formation of ionic CN- and NC- species. The formation of N(2) can proceed directly from these ionic species upon their interaction with NO+. Alternatively, these cyanide species can be oxidized to isocyanates which then can be further transformed to N(2), N(2)O and CO(x) in their subsequent reaction with NO(x). JF - The journal of physical chemistry. B AU - Szanyi, János AU - Kwak, Ja Hun AU - Peden, Charles H F AD - Chemical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-93, Richland, WA 99352, USA. janos.szanyi@pnl.gov Y1 - 2005/02/03/ PY - 2005 DA - 2005 Feb 03 SP - 1481 EP - 1490 VL - 109 IS - 4 SN - 1520-6106, 1520-6106 KW - Nitrogen Oxides KW - 0 KW - Zeolites KW - 1318-02-1 KW - Barium KW - 24GP945V5T KW - Hydrogen Cyanide KW - 2WTB3V159F KW - Sodium KW - 9NEZ333N27 KW - Index Medicus KW - Sensitivity and Specificity KW - Spectroscopy, Fourier Transform Infrared KW - Temperature KW - Adsorption KW - Surface Properties KW - Catalysis KW - Zeolites -- chemistry KW - Hydrogen Cyanide -- chemistry KW - Barium -- chemistry KW - Nitrogen Oxides -- chemistry KW - Sodium -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70175169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+journal+of+physical+chemistry.+B&rft.atitle=The+catalytic+chemistry+of+HCN+%2B+NO2+over+Na-+and+Ba-Y%2CFAU%3A+an+in+situ+FTIR+and+TPD%2FTPR+study.&rft.au=Szanyi%2C+J%C3%A1nos%3BKwak%2C+Ja+Hun%3BPeden%2C+Charles+H+F&rft.aulast=Szanyi&rft.aufirst=J%C3%A1nos&rft.date=2005-02-03&rft.volume=109&rft.issue=4&rft.spage=1481&rft.isbn=&rft.btitle=&rft.title=The+journal+of+physical+chemistry.+B&rft.issn=15206106&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2007-06-29 N1 - Date created - 2006-07-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Painting a picture of gas hydrate distribution with thermal images AN - 51677567; 2005-066193 JF - Geophysical Research Letters AU - Weinberg, Jill L AU - Brown, Kevin M AU - Long, Philip E Y1 - 2005/02// PY - 2005 DA - February 2005 SP - 4 PB - American Geophysical Union, Washington, DC VL - 32 IS - 4 SN - 0094-8276, 0094-8276 KW - imagery KW - Northeast Pacific KW - gas hydrates KW - cores KW - temperature KW - ODP Site 1248 KW - spatial distribution KW - fractures KW - marine sediments KW - infrared methods KW - thermal anomalies KW - sediments KW - ODP Site 1242 KW - Leg 202 KW - ODP Site 1244 KW - ocean floors KW - Leg 204 KW - Leg 205 KW - ODP Site 1246 KW - East Pacific KW - diffusion KW - geophysical methods KW - Hydrate Ridge KW - lithofacies KW - North Pacific KW - Pacific Ocean KW - ODP Site 1254 KW - Ocean Drilling Program KW - ODP Site 1252 KW - ODP Site 1250 KW - mid-ocean ridges KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51677567?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Painting+a+picture+of+gas+hydrate+distribution+with+thermal+images&rft.au=Weinberg%2C+Jill+L%3BBrown%2C+Kevin+M%3BLong%2C+Philip+E&rft.aulast=Weinberg&rft.aufirst=Jill&rft.date=2005-02-01&rft.volume=32&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2004GL021437 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. geol. sketch map, sect. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - cores; diffusion; East Pacific; fractures; gas hydrates; geophysical methods; Hydrate Ridge; imagery; infrared methods; Leg 202; Leg 204; Leg 205; lithofacies; marine sediments; mid-ocean ridges; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1242; ODP Site 1244; ODP Site 1246; ODP Site 1248; ODP Site 1250; ODP Site 1252; ODP Site 1254; Pacific Ocean; sediments; spatial distribution; temperature; thermal anomalies DO - http://dx.doi.org/10.1029/2004GL021437 ER - TY - JOUR T1 - Vadose zone modeling of dispersed waste sites in the framework of an integrated stochastic environmental transport and impacts assessment code for the Hanford Site AN - 51500979; 2007-009999 JF - Stochastic Environmental Research and Risk Assessment AU - Nichols, Will E AU - Last, G V AU - Kincaid, C T Y1 - 2005/02// PY - 2005 DA - February 2005 SP - 24 EP - 32 PB - Springer International, Berlin - Heidelberg VL - 19 IS - 1 SN - 1436-3240, 1436-3240 KW - United States KW - aquifer vulnerability KW - isotopes KW - reclamation KW - data processing KW - waste disposal sites KW - unsaturated zone KW - tritium KW - chemical waste KW - simulation KW - remediation KW - radioactive waste KW - human ecology KW - ground water KW - radioactive isotopes KW - transport KW - stochastic processes KW - ecology KW - uncertainty KW - technetium KW - concentration KW - Washington KW - Monte Carlo analysis KW - statistical analysis KW - pollution KW - Hanford Site KW - Tc-99 KW - migration of elements KW - aquifers KW - models KW - computer programs KW - metals KW - hydrogen KW - risk assessment KW - nuclear facilities KW - waste disposal KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51500979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Stochastic+Environmental+Research+and+Risk+Assessment&rft.atitle=Vadose+zone+modeling+of+dispersed+waste+sites+in+the+framework+of+an+integrated+stochastic+environmental+transport+and+impacts+assessment+code+for+the+Hanford+Site&rft.au=Nichols%2C+Will+E%3BLast%2C+G+V%3BKincaid%2C+C+T&rft.aulast=Nichols&rft.aufirst=Will&rft.date=2005-02-01&rft.volume=19&rft.issue=1&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Stochastic+Environmental+Research+and+Risk+Assessment&rft.issn=14363240&rft_id=info:doi/10.1007%2Fs00477-004-0201-9 L2 - http://www.springerlink.com/(pl0qn045nsnft12tijicw545)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:103283,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - SHHYEK N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; chemical waste; computer programs; concentration; data processing; ecology; ground water; Hanford Site; human ecology; hydrogen; isotopes; metals; migration of elements; models; Monte Carlo analysis; nuclear facilities; pollution; public health; radioactive isotopes; radioactive waste; reclamation; remediation; risk assessment; simulation; statistical analysis; stochastic processes; Tc-99; technetium; transport; tritium; uncertainty; United States; unsaturated zone; Washington; waste disposal; waste disposal sites DO - http://dx.doi.org/10.1007/s00477-004-0201-9 ER - TY - JOUR T1 - Measurement and prediction of deep drainage from bare sediments at a semiarid site AN - 51133633; 2005-062334 AB - In desert environments, nonvegetated (bare) soils and sediments can act as recharge basins, allowing water infiltration but restricting evaporation. When such sediments are located over buried wastes, drainage can transport vadose zone contamination downward to groundwater. Lysimeters were used to quantify drainage from bare sediments at the U.S. Department of Energy's Hanford Site in Washington state, USA. Drainage varied widely from zero to more than half of the annual precipitation for sediments ranging from fine silts to coarse rock fragments. Decade-long drainage records were used to develop two empirical models relating annual drainage and textural properties of bare sediments. A 22-yr drainage record for bare, coarse sand was tested, and the calibration developed for the past 10 years (1995-2004) was found to reliably predict drainage from the previous 12 years. The texture models were also compared against Darcy's Law drainage estimates (i.e., unsaturated hydraulic conductivity) for coarse sand and found to outperform Darcy's Law estimates of the long-term drainage average. The texture models reasonably predicted annual drainage rates for bare sediments containing significant fines (materials less than 50 mu m), but significantly overpredicted drainage rates for clean rock and gravels with little or no fines. The failure of the textural models with coarse materials containing minimal fines was attributed to advective drying. Drainage predictions using the textural models indicate that to minimize drainage only modest quantities of fines need to be added to the coarse sediments to substantially reduce the potential for groundwater contamination. JF - Vadose Zone Journal AU - Gee, Glendon W AU - Keller, Jason M AU - Ward, A L Y1 - 2005/02// PY - 2005 DA - February 2005 SP - 32 EP - 40 PB - Soil Science Society of America, Madison, WI VL - 4 IS - 1 KW - United States KW - aquifer vulnerability KW - terrestrial environment KW - landfills KW - semi-arid environment KW - waste disposal sites KW - unsaturated zone KW - ground water KW - quantitative analysis KW - sediments KW - Benton County Washington KW - lysimeters KW - soils KW - granulometry KW - sand KW - experimental studies KW - Washington KW - clastic sediments KW - pollutants KW - Darcy's law KW - drainage KW - pollution KW - Hanford Site KW - measurement KW - hydraulic conductivity KW - waste disposal KW - field studies KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133633?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Measurement+and+prediction+of+deep+drainage+from+bare+sediments+at+a+semiarid+site&rft.au=Gee%2C+Glendon+W%3BKeller%2C+Jason+M%3BWard%2C+A+L&rft.aulast=Gee&rft.aufirst=Glendon&rft.date=2005-02-01&rft.volume=4&rft.issue=1&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 46 N1 - PubXState - WI N1 - Document feature - illus. incl. 5 tables N1 - SuppNotes - Accessed on March 25, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; Benton County Washington; clastic sediments; Darcy's law; drainage; experimental studies; field studies; granulometry; ground water; Hanford Site; hydraulic conductivity; landfills; lysimeters; measurement; pollutants; pollution; quantitative analysis; sand; sediments; semi-arid environment; soils; terrestrial environment; United States; unsaturated zone; Washington; waste disposal; waste disposal sites ER - TY - JOUR T1 - Chloride mass balance; cautions in predicting increased recharge rates AN - 51133386; 2005-062337 AB - The chloride mass balance (CMB) method has been used extensively to estimate recharge in arid and semiarid environments. Required data include estimates of annual precipitation, total Cl- input (from dry fallout and precipitation), and pore water Cl- concentrations. Typically, CMB has been used to estimate ancient recharge, but recharge from recent land-use change has also been documented. Recharge rates below a few millimeters per year are reliably detected with CMB; however, estimates above a few millimeters per year appear to be less reliable. We tested the CMB method against 26 yr of drainage from a 7.6-m-deep lysimeter at a simulated waste burial ground located on the Department of Energy's Hanford Site in southeastern Washington, USA where removal of vegetation has increased recharge rates. Measured drainage from the lysimeter for the past 26 yr averaged 62 mm yr-1. Precipitation averaged 190 mm yr-1 with an estimated Cl- input of 0.22 mg L-1. Initial pore water Cl- concentration was 88 mg L-1 and decreased to about 6 mg L-1 after 26 yr, while the drainage water Cl- concentration decreased to <1 mg L-1. A recharge estimate made using Cl- concentrations in drain water was within 26% of the measured drainage rate. In contrast, recharge estimates using 1:1 (water/soil) extracts were lower than actual values by factors ranging from 2 to 8 or more. The results suggest that when recharge is above a few millimeters per year, soil water extracts can lead to unreliable estimates of recharge. JF - Vadose Zone Journal AU - Gee, Glendon W AU - Zhang, Z F AU - Tyler, S W AU - Albright, W H AU - Singleton, Michael J Y1 - 2005/02// PY - 2005 DA - February 2005 SP - 72 EP - 78 PB - Soil Science Society of America, Madison, WI VL - 4 IS - 1 KW - United States KW - terrestrial environment KW - semi-arid environment KW - halogens KW - unsaturated zone KW - techniques KW - ground water KW - hydrologic cycle KW - errors KW - quantitative analysis KW - chloride ion KW - mass balance KW - lysimeters KW - geochemistry KW - hydrology KW - chlorine KW - concentration KW - Washington KW - Hanford Site KW - hydrochemistry KW - southeastern Washington KW - recharge KW - residence time KW - pore water KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Chloride+mass+balance%3B+cautions+in+predicting+increased+recharge+rates&rft.au=Gee%2C+Glendon+W%3BZhang%2C+Z+F%3BTyler%2C+S+W%3BAlbright%2C+W+H%3BSingleton%2C+Michael+J&rft.aulast=Gee&rft.aufirst=Glendon&rft.date=2005-02-01&rft.volume=4&rft.issue=1&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 31 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Accessed on March 25, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chloride ion; chlorine; concentration; errors; geochemistry; ground water; halogens; Hanford Site; hydrochemistry; hydrologic cycle; hydrology; lysimeters; mass balance; pore water; quantitative analysis; recharge; residence time; semi-arid environment; southeastern Washington; techniques; terrestrial environment; United States; unsaturated zone; Washington ER - TY - JOUR T1 - A comparison of models describing residual NAPL formation in the vadose zone AN - 51131434; 2005-062347 AB - A major shortcoming of multifluid flow simulators is the inability to predict the retention of nonaqueous phase liquid (NAPL) in the vadose zone after long drainage periods. Recently, three theoretical models-the Wipfler and van der Zee (WVDZ) model; the Van Geel and Roy (VGR) model; and the Lenhard, Oostrom, and Dane (LOD) model-have been proposed for describing residual NAPL formation. The WVDZ model assumes a critical total liquid saturation below which all NAPL becomes residual. The VGR and LOD models are extensions of an existing hysteretic relative permeability-saturation-capillary pressure model and assume formation of residual NAPL during NAPL drainage and imbibition, respectively. In this study, we compared model predictions against results of a series of static pressure cell experiments. We found no experimental evidence supporting the WVDZ concept of a critical total liquid saturation. The other two models yielded reasonable predictions. The VGR and LOD models were then incorporated into a multifluid flow simulator, and simulations of two transient column experiments were conducted. Both models performed considerably better than simulations without considering the formation of residual NAPL, underwriting the importance of incorporating this process in simulators. Although the VGR and LOD models are based on different conceptual models, no clear performance differences could be observed when simulation results were compared against the transient experimental data. JF - Vadose Zone Journal AU - Oostrom, Mart AU - White, M D AU - Lenhard, Robert J AU - van Geel, P J AU - Wietsma, T W Y1 - 2005/02// PY - 2005 DA - February 2005 SP - 163 EP - 174 PB - Soil Science Society of America, Madison, WI VL - 4 IS - 1 KW - United States KW - STOMP KW - dodecane KW - moisture KW - unsteady flow KW - unsaturated zone KW - simulation KW - laboratory studies KW - movement KW - sediments KW - Wipfler and van der Zee model KW - water KW - sand KW - experimental studies KW - Washington KW - numerical models KW - clastic sediments KW - static pressure KW - pollutants KW - drainage KW - pollution KW - Hanford Site KW - porous materials KW - Van Geel and Roy model KW - equations KW - petroleum products KW - nonaqueous phase liquids KW - organic compounds KW - saturation KW - soil pollution KW - multiphase flow KW - hydrocarbons KW - theoretical models KW - constitutive equations KW - Lanhard, Oostrom and Dane model KW - Brooks and Corey-Burdine equation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51131434?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+comparison+of+models+describing+residual+NAPL+formation+in+the+vadose+zone&rft.au=Oostrom%2C+Mart%3BWhite%2C+M+D%3BLenhard%2C+Robert+J%3Bvan+Geel%2C+P+J%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=Mart&rft.date=2005-02-01&rft.volume=4&rft.issue=1&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 32 N1 - PubXState - WI N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Accessed on April 1, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Brooks and Corey-Burdine equation; clastic sediments; constitutive equations; dodecane; drainage; equations; experimental studies; Hanford Site; hydrocarbons; laboratory studies; Lanhard, Oostrom and Dane model; moisture; movement; multiphase flow; nonaqueous phase liquids; numerical models; organic compounds; petroleum products; pollutants; pollution; porous materials; sand; saturation; sediments; simulation; soil pollution; static pressure; STOMP; theoretical models; United States; unsaturated zone; unsteady flow; Van Geel and Roy model; Washington; water; Wipfler and van der Zee model ER - TY - JOUR T1 - Comparative proteome analyses of human plasma following in vivo lipopolysaccharide administration using multidimensional separations coupled with tandem mass spectrometry AN - 20739963; 6152882 AB - There is significant interest in characterization of the human plasma proteome due to its potential for providing biomarkers applicable to clinical diagnosis and treatment and for gaining a better understanding of human diseases. We describe here a strategy for comparative proteome analyses of human plasma, which is applicable to biomarker identifications for various disease states. Multidimensional liquid chromatography-mass spectrometry (LC-MS/MS) has been applied to make comparative proteome analyses of plasma samples from an individual prior to and 9 h after lipopolysaccharide (LPS) administration. Peptide peak areas and the number of peptide identifications for each protein were used to evaluate the reproducibility of LC-MS/MS and to compare relative changes in protein concentration between the samples following LPS treatment. A total of 804 distinct plasma proteins (not including immunoglobulins) were confidently identified with 32 proteins observed to be significantly increased in concentration following LPS administration, including several known inflammatory response or acute-phase mediators such as C-reactive protein, serum amyloid A and A2, LPS-binding protein, LPS-responsive and beige-like anchor protein, hepatocyte growth factor activator, and von Willebrand factor, and thus, constituting potential biomarkers for inflammatory response.[comp] JF - Proteomics AU - Qian, Wei-Jun AU - Jacobs, Jon M AU - Camp II, David G AU - Monroe, Matthew E AU - Moore, Ronald J AU - Gritsenko, Marina A AU - Calvano, Steve E AU - Lowry, Stephen F AU - Xiao, Wenzhong AU - Moldawer, Lyle L AU - Davis, Ronald W AU - Tompkins, Ronald G AU - Smith, Richard D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, rds@pnl.gov Y1 - 2005/02// PY - 2005 DA - Feb 2005 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 2 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts KW - Comparative analysis KW - Human plasma KW - Lipopolysaccharide KW - Liquid chromatography-tandem mass spectrometry KW - Von Willebrand factor KW - biomarkers KW - Mass spectroscopy KW - Spectrometry KW - Inflammation KW - Plasma proteins KW - LPS-binding protein KW - Lipopolysaccharides KW - proteomics KW - Hepatocyte growth factor KW - Immunoglobulins KW - Amyloid KW - C-reactive protein KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20739963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Comparative+proteome+analyses+of+human+plasma+following+in+vivo+lipopolysaccharide+administration+using+multidimensional+separations+coupled+with+tandem+mass+spectrometry&rft.au=Qian%2C+Wei-Jun%3BJacobs%2C+Jon+M%3BCamp+II%2C+David+G%3BMonroe%2C+Matthew+E%3BMoore%2C+Ronald+J%3BGritsenko%2C+Marina+A%3BCalvano%2C+Steve+E%3BLowry%2C+Stephen+F%3BXiao%2C+Wenzhong%3BMoldawer%2C+Lyle+L%3BDavis%2C+Ronald+W%3BTompkins%2C+Ronald+G%3BSmith%2C+Richard+D&rft.aulast=Qian&rft.aufirst=Wei-Jun&rft.date=2005-02-01&rft.volume=5&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200400942 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-07-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Von Willebrand factor; biomarkers; Mass spectroscopy; Inflammation; Spectrometry; Plasma proteins; LPS-binding protein; Lipopolysaccharides; proteomics; Hepatocyte growth factor; C-reactive protein; Amyloid; Immunoglobulins DO - http://dx.doi.org/10.1002/pmic.200400942 ER - TY - JOUR T1 - Cerenkov Counter for In-Situ Groundwater Monitoring of super(90)Sr AN - 19563839; 8805464 AB - Groundwater contamination from super(90)Sr is an environmental challenge posed topresent and former nuclear weapons related sites. Traditional methods of extractinggroundwater samples and performing laboratory analyses are expensive, time-consumingand induce significant disposal challenges. The authors present here a prototype countercapable of measuring super(90)Sr groundwater concentrations in-situ at or below the drinking waterlimit of 8 pCl/liter. The super(90)Y daughter of super(90)Sr produces high-energy electrons, which cancreate Cerenkov light Photomultiplier tubes convert the Cerenkov light into an electronicpulse, which then undergoes signal processing with standard electronics. Strontium-90concentrations near the drinking water limit can be measured in a matter of hours if it is insecular equilibrium with the super(90)Y daughter. The prototype counter is compact, can bedeployed in an American Standard 6-inch, well while operated by a single person, andtransmits the results to a central monitoring location. JF - Sensors AU - Runkle, R C AU - Brodzinski, R L AU - Jordan, D V AU - Hartman, J S AU - Hensley, W K AU - Maynard, MA AU - Sliger, WA AU - Smart, JE AU - Todd, L C AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999, Richland, WA, 99352, USA, robert.runkle@pnl.gov Y1 - 2005/02// PY - 2005 DA - Feb 2005 SP - 51 EP - 60 VL - 5 IS - 1 SN - 1424-8220, 1424-8220 KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Sensors KW - Prototypes KW - prototypes KW - Nuclear weapons KW - Groundwater Pollution KW - Tubes KW - Drinking Water KW - Laboratories KW - Weapons KW - Radioisotopes KW - Groundwater pollution KW - Strontium KW - Standards KW - Drinking water KW - Monitoring KW - Groundwater KW - P 2000:FRESHWATER POLLUTION KW - SW 3060:Water treatment and distribution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19563839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Sensors&rft.atitle=Cerenkov+Counter+for+In-Situ+Groundwater+Monitoring+of+super%2890%29Sr&rft.au=Runkle%2C+R+C%3BBrodzinski%2C+R+L%3BJordan%2C+D+V%3BHartman%2C+J+S%3BHensley%2C+W+K%3BMaynard%2C+MA%3BSliger%2C+WA%3BSmart%2C+JE%3BTodd%2C+L+C&rft.aulast=Runkle&rft.aufirst=R&rft.date=2005-02-01&rft.volume=5&rft.issue=1&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Sensors&rft.issn=14248220&rft_id=info:doi/10.3390%2Fs5010051 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Groundwater; Monitoring; Standards; Prototypes; Drinking Water; Laboratories; Tubes; Groundwater Pollution; Sensors; Strontium; Radioisotopes; prototypes; Nuclear weapons; Drinking water; Weapons; Groundwater pollution DO - http://dx.doi.org/10.3390/s5010051 ER - TY - JOUR T1 - Boundary-layer evolution over Phoenix, Arizona and the premature mixing of pollutants in the early morning AN - 16195951; 6138140 AB - The 2001 Phoenix Sunrise campaign was a field measurement program to investigate the early morning chemical and meteorological processes associated with the development of ozone pollution in Phoenix, Arizona. As part of that study, atmospheric structure was measured using wind profiling radars, sodars, and radiosondes at several locations in the Phoenix metropolitan area. Chemical measurements made by other investigators showed that vertical mixing of pollutants began prior to sunrise on a number of occasions. This was surprising, since we expected sustained mixing to occur only after sunrise and the onset of solar heating. We have used the meteorological measurements to identify a density current that commonly arrives in downtown Phoenix in the hour or two before sunrise when conditions are undisturbed. Both winds and cold advection associated with this feature act to destabilize the lower atmosphere, and the resulting mixing continues through the morning transition to convective conditions. Because photochemical production of ozone is non-linearly dependent on the concentrations of precursor species, this early mixing will need to be properly represented in combined meteorological and chemical models if they are to be fully successful in simulating ozone concentrations. JF - Atmospheric Environment AU - Shaw, W J AU - Doran, J C AU - Coulter, R L AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K9-30, Richland, WA 99352, USA, will.shaw@pnl.gov Y1 - 2005/02// PY - 2005 DA - Feb 2005 SP - 773 EP - 786 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 39 IS - 4 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Boundary layer KW - Complex terrain KW - Density current KW - Ozone KW - Air pollution KW - Pollution monitoring KW - Atmospheric pollution variations KW - Atmospheric pollution models KW - Density currents KW - Photochemical ozone production KW - Advection KW - Chemical speciation KW - Ozone concentration KW - Meteorology KW - Wind KW - Urban areas KW - Solar heating KW - Diurnal variations KW - Radar wind measurements KW - Meteorological measurements KW - Photochemicals KW - Atmospheric mixing KW - Radar KW - Atmospheric chemistry KW - Meteorological processes KW - USA, Arizona KW - Atmospheric structure KW - Evolution KW - USA, Arizona, Phoenix KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16195951?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Boundary-layer+evolution+over+Phoenix%2C+Arizona+and+the+premature+mixing+of+pollutants+in+the+early+morning&rft.au=Shaw%2C+W+J%3BDoran%2C+J+C%3BCoulter%2C+R+L&rft.aulast=Shaw&rft.aufirst=W&rft.date=2005-02-01&rft.volume=39&rft.issue=4&rft.spage=773&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2004.08.055 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-04-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Diurnal variations; Atmospheric pollution variations; Solar heating; Atmospheric pollution models; Radar wind measurements; Photochemical ozone production; Density currents; Advection; Meteorological measurements; Atmospheric mixing; Meteorological processes; Ozone concentration; Atmospheric structure; Evolution; Pollution monitoring; Photochemicals; Chemical speciation; Atmospheric chemistry; Radar; Meteorology; Wind; Ozone; Urban areas; USA, Arizona; USA, Arizona, Phoenix DO - http://dx.doi.org/10.1016/j.atmosenv.2004.08.055 ER - TY - JOUR T1 - Dynamic motion of helix A in the amino-terminal domain of calmodulin is stabilized upon calcium activation. AN - 67381505; 15654746 AB - Calcium-dependent changes in the internal dynamics and average structures of the opposing globular domains of calmodulin (CaM), as well as their relative spatial arrangement, contribute to the productive association between CaM and a range of different target proteins, affecting their functional activation. To identify dynamic structural changes involving individual alpha-helical elements and their modulation by calcium activation, we have used site-directed mutagenesis to engineer a tetracysteine binding motif within helix A near the amino terminus of calmodulin (CaM), permitting the selective and rigid attachment of the fluorescent probe 4',5'-bis(1,3,2-dithioarsolan-2-yl)fluorescein (FlAsH) with full retention of function. The rigid tetracoordinate linkage of FlAsH to CaM, in conjunction with frequency domain fluorescence anisotropy measurements, allows assessment of dynamic changes associated with calcium activation without interference from independent probe motion. Taking advantage of the large fluorescence enhancement associated with binding of FlAsH to CaM, we determined rates of binding of FlAsH to apo-CaM and calcium-activated CaM to be 2800 +/- 80 and 310 +/- 10 M(-)(1) s(-)(1), respectively. There is no difference in the solvent accessibility of the bound FlAsH irrespective of calcium binding to CaM. Thus, given that FlAsH selectively labels disordered structures, the large difference in rates of FlAsH binding indicates that calcium binding stabilizes helix A. Frequency domain anisotropy measurements of bound FlAsH indicate that prior to calcium activation, helix A undergoes large amplitude nanosecond motions. Following calcium activation, helix A becomes immobile, and structurally coupled to the overall rotation of CaM. We discuss these results in the context of a model that suggests stabilization of helix A relative to other domain elements in the CaM structure is critical to defining high-affinity binding clefts, and in promoting specific and ordered binding of the opposing lobes of CaM to target proteins. JF - Biochemistry AU - Chen, Baowei AU - Mayer, M Uljana AU - Markillie, Lye Meng AU - Stenoien, David L AU - Squier, Thomas C AD - Cell Biology and Biochemistry Group, Biological Sciences Division, Fundamental Sciences Directorate, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA. Y1 - 2005/01/25/ PY - 2005 DA - 2005 Jan 25 SP - 905 EP - 914 VL - 44 IS - 3 SN - 0006-2960, 0006-2960 KW - 4',5'-bis(1,3,2-dithioarsolan-2-yl)fluorescein KW - 0 KW - Calmodulin KW - DNA Primers KW - Fluoresceins KW - Fluorescent Dyes KW - Organometallic Compounds KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Base Sequence KW - Fluorescence Polarization KW - Protein Conformation KW - Calmodulin -- metabolism KW - Calcium -- metabolism KW - Calmodulin -- chemistry KW - Calmodulin -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67381505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Dynamic+motion+of+helix+A+in+the+amino-terminal+domain+of+calmodulin+is+stabilized+upon+calcium+activation.&rft.au=Chen%2C+Baowei%3BMayer%2C+M+Uljana%3BMarkillie%2C+Lye+Meng%3BStenoien%2C+David+L%3BSquier%2C+Thomas+C&rft.aulast=Chen&rft.aufirst=Baowei&rft.date=2005-01-25&rft.volume=44&rft.issue=3&rft.spage=905&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-04-12 N1 - Date created - 2005-01-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Targeted Comparative Proteomics by Liquid Chromatography-Tandem Fourier Ion Cyclotron Resonance Mass Spectrometry AN - 17377382; 6460746 AB - In proteomics, effective methods are needed for identifying the relatively limited subset of proteins displaying significant changes in abundance between two samples. One way to accomplish this task is to target for identification by MS/MS only the "interesting" proteins based on the abundance ratio of isotopically labeled pairs of peptides. We have developed the software and hardware tools for online LC-FTICR MS/MS studies in which a set of initially unidentified peptides from a proteome analysis can be selected for identification based on their distinctive changes in abundance following a "perturbation". We report here the validation of this method using a mixture of standard proteins combined in different ratios after isotopic labeling. We also demonstrate the application of this method to the identification of Shewanella oneidensis peptides/proteins exhibiting differential abundance in suboxic versus aerobic cell cultures. JF - Analytical Chemistry (Washington) AU - Masselon, C AU - Pasa-Tolic, L AU - Tolic, N AU - Anderson, G A AU - Bogdanov, B AU - Vilkov, AN AU - Shen, Y AU - Zhao, R AU - Qian, W-J AU - Lipton AU - Camp, DG II AU - Smith, R D AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MSIN K8-98, Richland, Washington 99352, USA Y1 - 2005/01/15/ PY - 2005 DA - 2005 Jan 15 SP - 400 EP - 406 VL - 77 IS - 2 SN - 0003-2700, 0003-2700 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Computer programs KW - software KW - Shewanella oneidensis KW - Cell culture KW - proteomics KW - Mass spectroscopy KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17377382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%29&rft.atitle=Targeted+Comparative+Proteomics+by+Liquid+Chromatography-Tandem+Fourier+Ion+Cyclotron+Resonance+Mass+Spectrometry&rft.au=Masselon%2C+C%3BPasa-Tolic%2C+L%3BTolic%2C+N%3BAnderson%2C+G+A%3BBogdanov%2C+B%3BVilkov%2C+AN%3BShen%2C+Y%3BZhao%2C+R%3BQian%2C+W-J%3BLipton%3BCamp%2C+DG+II%3BSmith%2C+R+D&rft.aulast=Masselon&rft.aufirst=C&rft.date=2005-01-15&rft.volume=77&rft.issue=2&rft.spage=400&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%29&rft.issn=00032700&rft_id=info:doi/10.1021%2Fac049043e LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-09-01 N1 - Last updated - 2015-03-25 N1 - SubjectsTermNotLitGenreText - Computer programs; software; Cell culture; proteomics; Mass spectroscopy; Shewanella oneidensis DO - http://dx.doi.org/10.1021/ac049043e ER - TY - JOUR T1 - Expedition 311 synthesis; scientific findings AN - 742922201; 2010-064295 AB - Integrated Ocean Drilling Program Expedition 311 was conducted to study gas hydrate occurrences and their evolution along a transect spanning the entire northern Cascadia accretionary margin. A transect of four research sites (U1325, U1326, U1327, and U1329) was established over a distance of 32 km, extending from Site U1326 near the deformation front to Site U1329 at the eastern limit of the inferred gas hydrate occurrence zone. In addition to the transect, a fifth site (U1328) was established at a cold vent setting with active fluid and gas expulsion, which provided an opportunity to compare regional pervasive fluid-flow regimes to a site of focused fluid advection. In this synthesis, a revised gas hydrate formation model is proposed based on a combination of geophysical, geochemical, and sedimentological data acquired during and after Expedition 311 and from previous studies. The main elements of this revised model are as follows: 1. Fluid expulsion by tectonic compression of accreted sediments at nonuniform expulsion rates along the transect results in the evolution of variable pore water regimes across the margin. Sites closer to the deformation front are characterized by pore fluids enriched in dissolved salts at depth, where zeolite formation from ash diagenesis is dominant. In contrast, the landward portion of the margin shows a freshening of pore fluids with depth as a result of the progressive overprinting of diagenetic salt generation with freshwater generation from the smectite-to-illite transition at greater depth. 2. In situ methane produced by microbial CO (sub 2) reduction within the gas hydrate stability zone is the prevalent gas source for gas hydrate formation. 3. Some minor methane advection from depth is required overall to explain the occurrence of gas hydrate (and the associated downhole isotopic signatures of CH (sub 4) and CO (sub 2) ) within the sediments of the accretionary prism and the absence of gas hydrate within the abyssal plain sediments. In contrast, methane migrating from depth is a dominant source for gas hydrate formation at the cold vent Site U1328 (Bullseye vent). 4. Gas hydrate preferentially forms in coarser grained sandy/silt turbidites, resulting in very high local gas hydrate concentrations. Typically, gas hydrate occupies <5% of the pore space throughout the gas hydrate stability zone. Higher gas hydrate saturations were observed in intervals with abundant coarse-grained sand layers and within fault-controlled fluid and gas migration conduits at the cold vent Site U1328. JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 4 PB - IODP Management International, Washington, DC VL - 311 KW - Northeast Pacific KW - gas hydrates KW - IODP Site U1326 KW - IODP Site U1327 KW - IODP Site U1328 KW - IODP Site U1329 KW - temperature KW - carbon dioxide KW - IODP Site U1325 KW - carbon KW - reduction KW - Expedition 311 KW - East Pacific KW - lithium KW - C-13/C-12 KW - alkanes KW - seismic methods KW - flows KW - models KW - Sr-87/Sr-86 KW - organic compounds KW - Canada KW - North Pacific KW - hydrocarbons KW - surveys KW - geophysical profiles KW - strontium KW - pore water KW - chlorinity KW - United States KW - geophysical surveys KW - isotopes KW - aliphatic hydrocarbons KW - stability KW - fluid phase KW - salinity KW - stable isotopes KW - cores KW - bottom-simulating reflectors KW - marine sediments KW - sediments KW - geochemistry KW - migration KW - alkaline earth metals KW - Washington KW - seismic profiles KW - methane KW - well logs KW - isotope ratios KW - geophysical methods KW - alkali metals KW - British Columbia KW - Integrated Ocean Drilling Program KW - resistivity KW - hydrochemistry KW - genesis KW - biogenic processes KW - boreholes KW - metals KW - Pacific Ocean KW - Western Canada KW - Cascadia subduction zone KW - 02D:Isotope geochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742922201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Expedition+311+synthesis%3B+scientific+findings&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.213.2010 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 62 N1 - PubXState - DC N1 - Document feature - illus. incl. sect., 1 table, geol. sketch map N1 - SuppNotes - Date issued: 2010 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkali metals; alkaline earth metals; alkanes; biogenic processes; boreholes; bottom-simulating reflectors; British Columbia; C-13/C-12; Canada; carbon; carbon dioxide; Cascadia subduction zone; chlorinity; cores; East Pacific; Expedition 311; flows; fluid phase; gas hydrates; genesis; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; hydrocarbons; hydrochemistry; Integrated Ocean Drilling Program; IODP Site U1325; IODP Site U1326; IODP Site U1327; IODP Site U1328; IODP Site U1329; isotope ratios; isotopes; lithium; marine sediments; metals; methane; migration; models; North Pacific; Northeast Pacific; organic compounds; Pacific Ocean; pore water; reduction; resistivity; salinity; sediments; seismic methods; seismic profiles; Sr-87/Sr-86; stability; stable isotopes; strontium; surveys; temperature; United States; Washington; well logs; Western Canada DO - http://dx.doi.org/10.2204/iodp.proc.311.213.2010 ER - TY - JOUR T1 - Modeling long-term risk to environmental and human systems at the Hanford Nuclear Reservation: scope and findings from the initial model. AN - 67975081; 15984066 AB - The Groundwater Protection Project at the US Department of Energy Hanford Site in Washington State is currently developing the means to assess the cumulative impact to human and ecological health and the regional economy and cultures from radioactive and chemical waste that will remain at the Hanford Site after the site closes. This integrated system is known as the System Assessment Capability (SAC). The SAC Risk/Impact Module discussed in the article uses media- and time-specific concentrations of contaminants estimated by the transport models of the integrated system to project potential impacts on the ecology of the Columbia River corridor, the health of persons who might live in or use the corridor or the upland Hanford environment, the local economy, and cultural resources. Preliminary Monte Carlo realizations from the SAC modeling system demonstrate the feasibility of large-scale uncertainty analysis of the complex relationships in the environmental transport of contaminants on the one hand and ecological, human, cultural, and economic risk on the other. Initial impact results show very small long-term risks for the 10 radionuclides and chemicals evaluated. The analysis also helps determine science priorities to reduce uncertainty and suggests what actions matter to reduce risks. JF - Environmental management AU - Scott, Michael J AU - Brandt, Charlie A AU - Bunn, Amoret L AU - Engel, David W AU - Eslinger, Paul W AU - Miley, Terri B AU - Napier, Bruce A AU - Prendergast, Ellen L AU - Nieves, Leslie A AD - Pacific Northwest National Laboratory, Richland, Washington 99352-2458, USA. michael.scott@pnl.gov Y1 - 2005/01// PY - 2005 DA - January 2005 SP - 84 EP - 98 VL - 35 IS - 1 SN - 0364-152X, 0364-152X KW - Radioactive Pollutants KW - 0 KW - Radioactive Waste KW - Index Medicus KW - Washington KW - Public Health KW - Humans KW - Monte Carlo Method KW - Risk Assessment KW - Ecology KW - Radioactive Pollutants -- analysis KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67975081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+management&rft.atitle=Modeling+long-term+risk+to+environmental+and+human+systems+at+the+Hanford+Nuclear+Reservation%3A+scope+and+findings+from+the+initial+model.&rft.au=Scott%2C+Michael+J%3BBrandt%2C+Charlie+A%3BBunn%2C+Amoret+L%3BEngel%2C+David+W%3BEslinger%2C+Paul+W%3BMiley%2C+Terri+B%3BNapier%2C+Bruce+A%3BPrendergast%2C+Ellen+L%3BNieves%2C+Leslie+A&rft.aulast=Scott&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=35&rft.issue=1&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Environmental+management&rft.issn=0364152X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-07-12 N1 - Date created - 2005-06-28 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A proteomic approach to characterize protein shedding. AN - 67459221; 15672459 AB - Shedding (i.e. proteolysis of ectodomains of membrane proteins) plays an important pathophysiological role. In order to study the feasibility of identifying shed proteins, we analyzed serum-free media of human mammary epithelial cells by mass spectrometry following induction of shedding by the phorbol ester, 4 beta-phorbol 12-myristate 13-acetate (PMA). Different means of sample preparation, including biotinylation of cell surface proteins, isolation of glycosylated proteins, and preparation of crude protein fractions, were carried out to develop the optimal method of sample processing. The collected proteins were digested with trypsin and analyzed by reversed-phase capillary liquid chromatography interfaced to an ion-trap mass spectrometer. The resulting peptide spectra were interpreted using the program SEQUEST. Analyzing the sample containing the crude protein mixture without chemical modification or separation resulted in the greatest number of identifications, including putatively shed proteins. Overall, 45 membrane-associated proteins were identified including 22 that contain at least one transmembrane domain and 23 that indirectly associate with the extracellular surface of the plasma membrane. Of the 22 transmembrane proteins, 18 were identified by extracellular peptides providing strong evidence they originate from regulated proteolysis or shedding processes. We combined results from the different experiments and used a peptide count method to estimate changes in protein abundance. Using this approach, we identified two proteins, syndecan-4 and hepatoma-derived growth factor, whose abundances increased in media of cells treated with PMA. We also detected proteins whose abundances decreased after PMA treatment such as 78 kDa glucose-regulated protein and lactate dehydrogenase A. Further analysis using immunoblotting validated the abundance changes for syndecan-4 and 78 kDa glucose-regulated protein as a result of PMA treatment. These results demonstrate that tandem mass spectrometry can be used to identify shed proteins and to estimate changes in protein abundance. JF - Proteomics AU - Ahram, Mamoun AU - Adkins, Joshua N AU - Auberry, Deanna L AU - Wunschel, David S AU - Springer, David L AD - Biological Sciences Division, Battelle, Pacific Northwest National Laboratory, Richland, WA 99352, USA. Y1 - 2005/01// PY - 2005 DA - January 2005 SP - 123 EP - 131 VL - 5 IS - 1 SN - 1615-9853, 1615-9853 KW - Antigens, CD44 KW - 0 KW - Heat-Shock Proteins KW - Intercellular Signaling Peptides and Proteins KW - Membrane Glycoproteins KW - Membrane Proteins KW - Molecular Chaperones KW - Phorbol Esters KW - Proteoglycans KW - Proteome KW - SDC4 protein, human KW - Syndecan-4 KW - hepatoma-derived growth factor KW - molecular chaperone GRP78 KW - phorbolol myristate acetate KW - 56937-68-9 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Heat-Shock Proteins -- metabolism KW - Membrane Glycoproteins -- chemistry KW - Mass Spectrometry KW - Molecular Chaperones -- chemistry KW - Molecular Chaperones -- metabolism KW - Humans KW - Protein Denaturation KW - Intercellular Signaling Peptides and Proteins -- chemistry KW - Antigens, CD44 -- metabolism KW - Biotinylation KW - Heat-Shock Proteins -- chemistry KW - Epithelial Cells -- metabolism KW - Phorbol Esters -- pharmacology KW - Epithelial Cells -- chemistry KW - Epithelial Cells -- drug effects KW - Proteoglycans -- metabolism KW - Cells, Cultured KW - Chromatography, Liquid KW - Antigens, CD44 -- chemistry KW - Protein Structure, Tertiary KW - Glycolysis KW - Proteoglycans -- chemistry KW - Intercellular Signaling Peptides and Proteins -- metabolism KW - Membrane Glycoproteins -- metabolism KW - Tetradecanoylphorbol Acetate -- analogs & derivatives KW - Membrane Proteins -- chemistry KW - Membrane Proteins -- metabolism KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Proteome -- analysis KW - Membrane Proteins -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67459221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=A+proteomic+approach+to+characterize+protein+shedding.&rft.au=Ahram%2C+Mamoun%3BAdkins%2C+Joshua+N%3BAuberry%2C+Deanna+L%3BWunschel%2C+David+S%3BSpringer%2C+David+L&rft.aulast=Ahram&rft.aufirst=Mamoun&rft.date=2005-01-01&rft.volume=5&rft.issue=1&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-08-08 N1 - Date created - 2005-02-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - BOOK T1 - Climate change impacts for the conterminous USA; an integrated assessment; Part 4, Water resources AN - 51684564; 2005-060883 JF - Climate change impacts for the conterminous USA; an integrated assessment AU - Thomson, Allison M AU - Brown, Robert A AU - Rosenberg, Norman J AU - Srinivasan, Raghavan AU - Izaurralde, R Cesar A2 - Rosenberg, Norman J. A2 - Edmonds, James A. Y1 - 2005 PY - 2005 DA - 2005 PB - Springer, Dordrecht SN - 1402032552 KW - United States KW - hydrology KW - general circulation models KW - water supply KW - fresh water KW - global change KW - atmospheric precipitation KW - environmental effects KW - climate change KW - variations KW - hydrologic cycle KW - evaporation KW - water yield KW - seasonal variations KW - greenhouse effect KW - water resources KW - global warming KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51684564?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Thomson%2C+Allison+M%3BBrown%2C+Robert+A%3BRosenberg%2C+Norman+J%3BSrinivasan%2C+Raghavan%3BIzaurralde%2C+R+Cesar&rft.aulast=Thomson&rft.aufirst=Allison&rft.date=2005-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1402032552&rft.btitle=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment%3B+Part+4%2C+Water+resources&rft.title=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment%3B+Part+4%2C+Water+resources&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Climate change impacts for the conterminous USA; an integrated assessment AN - 51683554; 2005-060882 JF - Climate change impacts for the conterminous USA; an integrated assessment A2 - Rosenberg, Norman J. A2 - Edmonds, James A. Y1 - 2005 PY - 2005 DA - 2005 SP - 162 PB - Springer, Dordrecht SN - 1402032552 KW - United States KW - agriculture KW - prediction KW - global change KW - ecosystems KW - environmental effects KW - climate change KW - models KW - economics KW - water resources KW - land use KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51683554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2005-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1402032552&rft.btitle=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment&rft.title=Climate+change+impacts+for+the+conterminous+USA%3B+an+integrated+assessment&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - SuppNotes - Individual paper within scope is cited separately; reprinted from Climatic Change, Vol. 69, No. 1, 2005 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Enzymology of electron transport; energy generation with geochemical consequences AN - 51646177; 2006-007897 JF - Reviews in Mineralogy and Geochemistry AU - DiChristina, Thomas J AU - Fredrickson, Jim K AU - Zachara, John M A2 - Banfield, Jillian F. A2 - Cervini-Silva, Javiera A2 - Nealson, Kenneth M. Y1 - 2005 PY - 2005 DA - 2005 SP - 27 EP - 52 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 59 IS - 1 SN - 1529-6466, 1529-6466 KW - alkaline earth metals KW - magnesium KW - experimental studies KW - geomicrobiology KW - biochemistry KW - enzymes KW - iron KW - geochemical cycle KW - laboratory studies KW - organic compounds KW - metals KW - bacteria KW - reduction KW - proteins KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51646177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Enzymology+of+electron+transport%3B+energy+generation+with+geochemical+consequences&rft.au=DiChristina%2C+Thomas+J%3BFredrickson%2C+Jim+K%3BZachara%2C+John+M&rft.aulast=DiChristina&rft.aufirst=Thomas&rft.date=2005-01-01&rft.volume=59&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Conference title - Molecular geomicrobiology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 132 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; bacteria; biochemistry; enzymes; experimental studies; geochemical cycle; geomicrobiology; iron; laboratory studies; magnesium; metals; microorganisms; organic compounds; proteins; reduction ER - TY - JOUR T1 - Data report; bulk mineralogical composition of Cascadia margin sediments; IODP Expedition 311 AN - 51253897; 2008-064248 JF - Proceedings of the Integrated Ocean Drilling Program AU - Bahr, Andre AU - Bohrmann, Gerhard AU - Teichert, Barbara M A AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 PB - IODP Management International, Washington, DC VL - 311 KW - continental margin KW - X-ray diffraction data KW - IODP Site U1326 KW - IODP Site U1327 KW - British Columbia KW - IODP Site U1328 KW - Integrated Ocean Drilling Program KW - IODP Site U1329 KW - detritus KW - cores KW - variations KW - marine sediments KW - mineral composition KW - boreholes KW - Canada KW - Vancouver Island KW - IODP Site U1325 KW - sediments KW - Western Canada KW - Cascadia subduction zone KW - Expedition 311 KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51253897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+bulk+mineralogical+composition+of+Cascadia+margin+sediments%3B+IODP+Expedition+311&rft.au=Bahr%2C+Andre%3BBohrmann%2C+Gerhard%3BTeichert%2C+Barbara+M+A%3BRiedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Bahr&rft.aufirst=Andre&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.201.2008 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 6 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boreholes; British Columbia; Canada; Cascadia subduction zone; continental margin; cores; detritus; Expedition 311; Integrated Ocean Drilling Program; IODP Site U1325; IODP Site U1326; IODP Site U1327; IODP Site U1328; IODP Site U1329; marine sediments; mineral composition; sediments; Vancouver Island; variations; Western Canada; X-ray diffraction data DO - http://dx.doi.org/10.2204/iodp.proc.311.201.2008 ER - TY - JOUR T1 - Data report; Gas hydrate structural and compositional characterization by spectroscopic analysis, IODP Expedition 311 AN - 51231738; 2008-074118 AB - Two gas hydrate cores from Integrated Ocean Drilling Program Expedition 311 Site U1328 (northern Cascadia margin) were analyzed for structural and compositional characterization. Gas hydrate was present mainly as nodules surrounded by sediment. The samples were recovered from 4.5 to 8.68 meters below seafloor using a conventional nonpressurized coring technique. Quenched in liquid nitrogen upon recovery, the gas hydrates were kept at cryogenic temperatures for sampling with Raman and nuclear magnetic resonance spectroscopy. Pure structure I (sI) methane gas hydrate was found in one sample and a methane-rich sI gas hydrate containing hydrogen sulfide was found in the second sample. Small local variations in the hydrogen sulfide amounts were shown. A hydration number of 6.08 was measured for both samples, in agreement with previous work with synthetic and recovered natural gas hydrates from similar locations. A method for determining the fraction of hydrate vs. ice using a Raman peak from water is given. This approach provides a possible tool to estimate sample degradation (conversion of gas hydrate to water+gas) as a result of recovery. Quantitative agreement between the methane cage occupancy ratios was shown for the nuclear magnetic resonance and Raman spectroscopic techniques for both sample sets, comprising pure methane and a mixture of methane+hydrogen sulfide. JF - Proceedings of the Integrated Ocean Drilling Program AU - Hester, K C AU - Koh, C A AU - Dec, S F AU - Sloan, E D AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 EP - variously paginated PB - IODP Management International, Washington, DC VL - 311 KW - gas hydrates KW - natural gas KW - aliphatic hydrocarbons KW - stability KW - petroleum KW - IODP Site U1328 KW - NMR spectra KW - cores KW - laboratory studies KW - marine sediments KW - sediments KW - composition KW - spectra KW - Expedition 311 KW - experimental studies KW - continental margin KW - methane KW - British Columbia KW - Integrated Ocean Drilling Program KW - hydrogen sulfide KW - alkanes KW - organic compounds KW - Raman spectra KW - boreholes KW - Canada KW - Vancouver Island KW - hydrocarbons KW - Western Canada KW - Cascadia subduction zone KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51231738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+Gas+hydrate+structural+and+compositional+characterization+by+spectroscopic+analysis%2C+IODP+Expedition+311&rft.au=Hester%2C+K+C%3BKoh%2C+C+A%3BDec%2C+S+F%3BSloan%2C+E+D%3BRiedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Hester&rft.aufirst=K&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.202.2008 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; boreholes; British Columbia; Canada; Cascadia subduction zone; composition; continental margin; cores; Expedition 311; experimental studies; gas hydrates; hydrocarbons; hydrogen sulfide; Integrated Ocean Drilling Program; IODP Site U1328; laboratory studies; marine sediments; methane; natural gas; NMR spectra; organic compounds; petroleum; Raman spectra; sediments; spectra; stability; Vancouver Island; Western Canada DO - http://dx.doi.org/10.2204/iodp.proc.311.202.2008 ER - TY - JOUR T1 - Molecular modeling of the vibrational spectra of interlayer and surface species of layered double hydroxides AN - 51137023; 2005-051637 JF - CMS Workshop Lectures AU - Kirkpatrick, R James AU - Kalinichev, Andrey G AU - Wang, Jianwei AU - Hou, Xiaoqiang AU - Amonette, James E A2 - Kloprogge, J. Theo Y1 - 2005 PY - 2005 DA - 2005 SP - 239 EP - 285 PB - Clay Minerals Society, Evergreen, CO VL - 13 SN - 1521-740X, 1521-740X KW - mineral interlayer KW - numerical models KW - statistical analysis KW - data processing KW - equations KW - infrared spectra KW - hydroxides KW - Raman spectroscopy KW - FTIR spectra KW - Raman spectra KW - vibrational spectra KW - digital simulation KW - autocorrelation KW - oxides KW - spectra KW - molecular dynamics KW - spectroscopy KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51137023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CMS+Workshop+Lectures&rft.atitle=Molecular+modeling+of+the+vibrational+spectra+of+interlayer+and+surface+species+of+layered+double+hydroxides&rft.au=Kirkpatrick%2C+R+James%3BKalinichev%2C+Andrey+G%3BWang%2C+Jianwei%3BHou%2C+Xiaoqiang%3BAmonette%2C+James+E&rft.aulast=Kirkpatrick&rft.aufirst=R&rft.date=2005-01-01&rft.volume=13&rft.issue=&rft.spage=239&rft.isbn=9781881208141&rft.btitle=&rft.title=CMS+Workshop+Lectures&rft.issn=1521740X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 81 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - autocorrelation; data processing; digital simulation; equations; FTIR spectra; hydroxides; infrared spectra; mineral interlayer; molecular dynamics; numerical models; oxides; Raman spectra; Raman spectroscopy; spectra; spectroscopy; statistical analysis; vibrational spectra ER - TY - JOUR T1 - Methods AN - 50874729; 2007-101790 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 76 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - lithostratigraphy KW - petrology KW - Northeast Pacific KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - downhole methods KW - cores KW - physical properties KW - organic compounds KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - ocean floors KW - Cascadia subduction zone KW - geochemistry KW - Expedition 311 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50874729?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Methods&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.102.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 92 N1 - PubXState - DC N1 - Document feature - 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biostratigraphy; Cascadia subduction zone; cores; downhole methods; East Pacific; Expedition 311; geochemistry; geophysical methods; Integrated Ocean Drilling Program; lithostratigraphy; marine sediments; North Pacific; Northeast Pacific; ocean floors; organic compounds; Pacific Ocean; petrology; physical properties; sediments DO - http://dx.doi.org/10.2204/iodp.proc.311.102.2006 ER - TY - JOUR T1 - Expedition 311 summary AN - 50874695; 2007-101789 AB - A transect of four sites (U1325, U1326, U1327, and U1329) across the northern Cascadia margin was established during Integrated Ocean Drilling Program Expedition 311 to study the occurrences and formation of gas hydrate in accretionary complexes. In addition to the transect sites, a fifth site (U1328) was established at a cold vent with active fluid and gas flow. The four transect sites represent different stages in the evolution of gas hydrate across the margin from the earliest occurrence on the westernmost first accreted ridge (Site U1326) to its final stage at the eastward limit of gas hydrate occurrence on the margin in shallower water (Site U1329). Logging while drilling and measurement while drilling carried out prior to coring provided a set of measurements that guided subsequent coring and special tool deployments at all five sites. Additional wireline logging at each site and two vertical seismic profiles at Sites U1327 and U1328 were completed. A total of 1217.76 m of sediment core was recovered using the advanced piston corer and extended core barrel systems. Standard coring was interspersed with 24 (16 successful) pressure core sampler runs for onboard degassing experiments and 19 HYACINTH deployments, of which four were stored under in situ pressure for subsequent shore-based studies. Indirect evidence of the presence of gas hydrate included increased electrical resistivities and P-wave velocities on downhole logs and low-salinity interstitial water anomalies, numerous infrared cold spots, and decreases in void gas C1/C2 ratios, as well as gas hydrate-related sedimentological moussy/soupy textures in recovered cores. Gas hydrate was also observed directly in the recovered cores, and >31 gas hydrate samples were preserved in liquid nitrogen for shore-based studies. The combined observations show that gas hydrate at these sites mainly occurs within coarser-grained turbidite sands and silts. The occurrence of gas hydrate appears to be controlled by several key factors, and the concentration of gas hydrate changes significantly as those factors vary in the sediments along the margin. The key controlling factors are Local methane solubility linked with pore water salinity, Fluid/gas advection rates, and Availability of suitable host material (coarse-grained sediments). In the previous model for gas hydrate formation in an accretionary margin, the highest concentrations of gas hydrate were expected to occur near the base of the gas hydrate stability zone (GHSZ) above the bottom-simulating reflector (BSR), with concentrations gradually decreasing upward as a result of pervasive fluid advection from tectonically driven fluid expulsion. However, the results of Expedition 311 show that this model is too simple and that there are additional controlling factors. Although evidence for widespread gas hydrate-related BSRs was observed in the data, by far the largest concentrations of gas hydrate were observed at the top of the gas hydrate occurrence zone, at a point where the amount of methane in the pore fluid exceeded the local methane solubility threshold. This condition was most evident at Sites U1326 and U1327, where gas hydrate was observed in sections several tens of meters thick at a shallow depth of approximately 100 meters below seafloor (mbsf); concentrations exceed 80% of the pore volume. JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 68 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - tectonic elements KW - seismic profiles KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - geophysical methods KW - Integrated Ocean Drilling Program KW - downhole methods KW - cores KW - seismic methods KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - surveys KW - geophysical profiles KW - ocean floors KW - Cascadia subduction zone KW - Expedition 311 KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50874695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Expedition+311+summary&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.101.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 58 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; cores; downhole methods; East Pacific; Expedition 311; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; sediments; seismic methods; seismic profiles; surveys; tectonic elements DO - http://dx.doi.org/10.2204/iodp.proc.311.101.2006 ER - TY - JOUR T1 - Site U1329 AN - 50871763; 2007-101798 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 113 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - IODP Site U1329 KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - diatoms KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - Miocene KW - seismic methods KW - Tertiary KW - North Pacific KW - Neogene KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 12:Stratigraphy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50871763?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1329&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.107.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 22 N1 - PubXState - DC N1 - Document feature - illus. incl. chart, 19 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; Cascadia subduction zone; Cenozoic; cores; diatoms; downhole methods; East Pacific; Expedition 311; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1329; lithostratigraphy; microfossils; Miocene; Neogene; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; Plantae; Quaternary; seismic methods; seismic profiles; surveys; Tertiary DO - http://dx.doi.org/10.2204/iodp.proc.311.107.2006 ER - TY - JOUR T1 - Data report; testing and deployment of the new APCT-3 tool to determine in situ temperatures while piston coring AN - 50869700; 2007-101795 AB - During Integrated Ocean Drilling Program Expedition 311, the third-generation advanced piston corer temperature (APCT-3) tool, a new downhole tool to determine in situ formation temperatures while piston coring, was successfully tested and deployed for the first time. Its development was partly driven by the need to replace the advanced piston corer temperature tools, which were lost or damaged during many successful deployments over the last 15 y. Additionally, many important scientific problems require instruments having greater stability, accuracy, measurement frequency, and robustness than were available in the past. During all nine deployments during Expedition 311, the APCT-3 tool proved to be robust, reliable, and user-friendly regarding its mechanics, electronics, and operation software. In addition, the test deployments also provided temperature data that were important for achieving expedition objectives. Moreover, it was demonstrated that the APCT-3 tool is capable of measuring temperatures with a resolution and absolute accuracy (depending on careful calibration) of approximately 1 mK at a sampling interval of 1 s, an improvement of about one order of magnitude compared to earlier instrumentation. JF - Proceedings of the Integrated Ocean Drilling Program AU - Heesemann, Martin AU - Villinger, Heinrich W AU - Trehu, Andrew T F M AU - White, Steffen AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 19 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - Northeast Pacific KW - in situ KW - Integrated Ocean Drilling Program KW - measurement-while-drilling KW - cores KW - temperature KW - measurement KW - North Pacific KW - Pacific Ocean KW - applications KW - ocean floors KW - Cascadia subduction zone KW - accuracy KW - instruments KW - design KW - Expedition 311 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50869700?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+testing+and+deployment+of+the+new+APCT-3+tool+to+determine+in+situ+temperatures+while+piston+coring&rft.au=Heesemann%2C+Martin%3BVillinger%2C+Heinrich+W%3BTrehu%2C+Andrew+T+F+M%3BWhite%2C+Steffen%3BReidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Heesemann&rft.aufirst=Martin&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.108.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 20 N1 - PubXState - DC N1 - Document feature - 1 table N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; applications; Cascadia subduction zone; cores; design; East Pacific; Expedition 311; in situ; instruments; Integrated Ocean Drilling Program; measurement; measurement-while-drilling; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; temperature DO - http://dx.doi.org/10.2204/iodp.proc.311.108.2006 ER - TY - JOUR T1 - Site U1328 AN - 50869637; 2007-101794 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 136 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - IODP Site U1328 KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - marine sediments KW - diatoms KW - sediments KW - depositional environment KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - surveys KW - Pleistocene KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50869637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1328&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.106.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, 25 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia subduction zone; Cenozoic; cores; depositional environment; diatoms; downhole methods; East Pacific; Expedition 311; gas hydrates; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1328; lithostratigraphy; marine sediments; microfossils; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; Plantae; Pleistocene; Quaternary; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.106.2006 ER - TY - JOUR T1 - Gas hydrate on the northern Cascadia margin; regional geophysics and structural framework AN - 50869129; 2007-101796 AB - Integrated Ocean Drilling Program Expedition 311 is based on extensive site survey data and historic research at the northern Cascadia margin since 1985. This research includes various regional geophysical surveys using a broad spectrum of seismic techniques, coring and logging by the Ocean Drilling Program Leg 146, heat flow measurements, shallow piston coring, and bottom video observations across a cold-vent field, as well as novel controlled-source electromagnetic and seafloor compliance surveying techniques. The wealth of data available allowed construction of structural cross-sections of the margin, development of models for the formation of gas hydrate in an accretionary prism, and estimation of gas hydrate and free gas concentrations. Expedition 311 established for the first time a transect of drill sites across the northern Cascadia margin to study the evolution of gas hydrate formation over the entire gas hydrate stability field of the accretionary complex. This paper reviews the tectonic framework at the northern Cascadia margin and summarizes the scientific studies that led to the drilling objectives of Expedition 311 Cascadia gas hydrate. JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Willoughby, E C AU - Chen, M A AU - He, T AU - Novosel, I AU - Schwalenberg, I N K AU - Hyndman, R D AU - Spence, G D AU - Chapman, N R AU - Edwards, R N AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 28 PB - IODP Management International, Washington, DC VL - 311 KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - stability KW - cores KW - marine sediments KW - sediments KW - electromagnetic methods KW - tectonics KW - ocean floors KW - vents KW - Expedition 311 KW - East Pacific KW - seismic profiles KW - thermal properties KW - geophysical methods KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - accretionary wedges KW - surveys KW - geophysical profiles KW - Cascadia subduction zone KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50869129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Gas+hydrate+on+the+northern+Cascadia+margin%3B+regional+geophysics+and+structural+framework&rft.au=Riedel%2C+Michael%3BWilloughby%2C+E+C%3BChen%2C+M+A%3BHe%2C+T%3BNovosel%2C+I%3BSchwalenberg%2C+I+N+K%3BHyndman%2C+R+D%3BSpence%2C+G+D%3BChapman%2C+N+R%3BEdwards%2C+R+N%3BReidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.109.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 91 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accretionary wedges; Cascadia subduction zone; cores; East Pacific; electromagnetic methods; Expedition 311; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; sediments; seismic methods; seismic profiles; stability; surveys; tectonics; thermal properties; vents DO - http://dx.doi.org/10.2204/iodp.proc.311.109.2006 ER - TY - JOUR T1 - Site U1327 AN - 50868768; 2007-101793 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 137 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - IODP Site U1327 KW - downhole methods KW - algae KW - cores KW - bottom-simulating reflectors KW - Cenozoic KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1327&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.105.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, sects., 24 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; bottom-simulating reflectors; Cascadia subduction zone; Cenozoic; cores; diatoms; downhole methods; East Pacific; Expedition 311; gas hydrates; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1327; lithostratigraphy; marine sediments; microfossils; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; Plantae; Quaternary; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.105.2006 ER - TY - JOUR T1 - Site U1325 AN - 50868712; 2007-101791 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael AU - Schultheiss, Peter Y1 - 2005 PY - 2005 DA - 2005 SP - 111 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - diatoms KW - IODP Site U1325 KW - depositional environment KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geophysical methods KW - Integrated Ocean Drilling Program KW - hydrochemistry KW - seismic methods KW - physical properties KW - organic compounds KW - North Pacific KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1325&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael%3BSchultheiss%2C+Peter&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.103.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, 20 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; Cascadia subduction zone; Cenozoic; cores; depositional environment; diatoms; downhole methods; East Pacific; Expedition 311; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; hydrochemistry; Integrated Ocean Drilling Program; IODP Site U1325; lithostratigraphy; microfossils; North Pacific; Northeast Pacific; ocean floors; organic compounds; Pacific Ocean; physical properties; Plantae; Quaternary; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.103.2006 ER - TY - JOUR T1 - Physical properties of near-surface sediments at southern Hydrate Ridge; results from ODP Leg 204 AN - 50868311; 2007-035096 AB - At the Leg 204 sites located on southern Hydrate Ridge, offshore the Oregon margin, detailed measurements of physical properties in the upper 10-20 m were carried out to characterize the physical nature of the near-surface sediments. Measurements included P-wave velocity, magnetic susceptibility, density, porosity, electrical resistivity, and shear strength. At Sites 1244, 1245, and 1246, P-wave velocity was also determined on the split cores using the Hamilton frame. Electrical resistivity was measured with the new noncontact resistivity tool from Geotek on whole cores as part of multisensor track core logging at Sites 1244, 1245, 1246, 1247, 1248, and 1252. These data were then used to calculate porosity using moisture and density measurements to develop appropriate transfer functions by using Archie's relation. This data set is important because only limited reliable logging data were obtained in the upper 10-20 m as a result of poor borehole conditions. Sediment porosities appear to be highest at Sites 1251 and 1252 in the slope basin, with values of approximately 75% in the upper 5 m below seafloor. Porosity is generally approximately 10% lower at all other sites. Porosity profiles were compared with P-wave velocity and sediment shear strength. Apparent overconsolidation of near-surface sediments was observed at Sites 1244, 1245, and 1246. At Site 1251, no such overconsolidation is observed. Sites 1244, 1245, and 1246 are located on the flanks of the anticline at southern Hydrate Ridge and have probably been exposed to erosion, whereas Sites 1251 and 1252, which are located in the eastward basin, have a much higher recent sedimentation rate as a result of turbidite deposition. JF - Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM) AU - Riedel, Michael AU - Long, Philip E AU - Liu, Char-Shine AU - Schultheiss, Peter AU - Collett, Timothy S AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Torres, Marta E AU - Rack, Frank R AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Milkov, Alexei V (Aleksey V) AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L AU - Boetius, Antje AU - Brockman, Fred J AU - Deyhle, Annette AU - Fehn, Udo AU - Flemings, Peter B AU - Girguis, Peter R AU - Heesemann, Martin AU - Joye, Samantha B AU - Lorenson, Thomas D AU - Mills, Christopher T AU - Musgrave, Robert J AU - Popa, Radu AU - Ussler, Bill AU - Wilkes, Heinz AU - Winckler, Gisela AU - Winters, William J Y1 - 2005 PY - 2005 DA - 2005 SP - 29 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 SN - 1096-2514, 1096-2514 KW - East Pacific KW - soil mechanics KW - electrical properties KW - Northeast Pacific KW - density KW - strength KW - Hydrate Ridge KW - porosity KW - physical properties KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - Ocean Drilling Program KW - Leg 204 KW - Cascadia subduction zone KW - 30:Engineering geology KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Scientific+Results+%28CD+ROM%29&rft.atitle=Physical+properties+of+near-surface+sediments+at+southern+Hydrate+Ridge%3B+results+from+ODP+Leg+204&rft.au=Riedel%2C+Michael%3BLong%2C+Philip+E%3BLiu%2C+Char-Shine%3BSchultheiss%2C+Peter%3BCollett%2C+Timothy+S%3BTrehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BTorres%2C+Marta+E%3BRack%2C+Frank+R%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BMilkov%2C+Alexei+V+%28Aleksey+V%29%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L%3BBoetius%2C+Antje%3BBrockman%2C+Fred+J%3BDeyhle%2C+Annette%3BFehn%2C+Udo%3BFlemings%2C+Peter+B%3BGirguis%2C+Peter+R%3BHeesemann%2C+Martin%3BJoye%2C+Samantha+B%3BLorenson%2C+Thomas+D%3BMills%2C+Christopher+T%3BMusgrave%2C+Robert+J%3BPopa%2C+Radu%3BUssler%2C+Bill%3BWilkes%2C+Heinz%3BWinckler%2C+Gisela%3BWinters%2C+William+J&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Scientific+Results+%28CD+ROM%29&rft.issn=10962514&rft_id=info:doi/10.2973%2Fodp.proc.sr.204.104.2006 L2 - http://www-odp.tamu.edu/publications/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 21 N1 - PubXState - TX N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2514; WWW format, ISSN 1096-7451 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; density; East Pacific; electrical properties; Hydrate Ridge; Leg 204; marine sediments; North Pacific; Northeast Pacific; Ocean Drilling Program; Pacific Ocean; physical properties; porosity; sediments; soil mechanics; strength DO - http://dx.doi.org/10.2973/odp.proc.sr.204.104.2006 ER - TY - JOUR T1 - Site U1326 AN - 50868264; 2007-101792 JF - Proceedings of the Integrated Ocean Drilling Program AU - Riedel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi AU - Reidel, Michael Y1 - 2005 PY - 2005 DA - 2005 SP - 103 PB - IODP Management International, Washington, DC VL - 311 KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - IODP Site U1326 KW - downhole methods KW - algae KW - cores KW - Cenozoic KW - marine sediments KW - diatoms KW - sediments KW - depositional environment KW - ocean floors KW - geochemistry KW - Expedition 311 KW - East Pacific KW - Plantae KW - seismic profiles KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - paleomagnetism KW - Integrated Ocean Drilling Program KW - seismic methods KW - North Pacific KW - Pacific Ocean KW - surveys KW - biozones KW - geophysical profiles KW - Cascadia subduction zone KW - microfossils KW - 24:Quaternary geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868264?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Site+U1326&rft.au=Riedel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi%3BReidel%2C+Michael&rft.aulast=Riedel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.104.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 15 N1 - PubXState - DC N1 - Document feature - illus. incl. charts, 21 tables, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; biozones; Cascadia subduction zone; Cenozoic; cores; depositional environment; diatoms; downhole methods; East Pacific; Expedition 311; geochemistry; geomicrobiology; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; IODP Site U1326; lithostratigraphy; marine sediments; microfossils; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; paleomagnetism; Plantae; Quaternary; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.104.2006 ER - TY - JOUR T1 - Data report; seismic structure beneath the north Cascadia drilling transect of IODP Expedition 311 AN - 50868145; 2007-101797 AB - Between 1999 and 2004, new seismic data became available for the study of gas hydrates on the northern Cascadia margin. These data consist of multi- and single-channel data with two- and partly three-dimensional subsurface coverage and were acquired and used in support of the proposal for Integrated Ocean Drilling Program (IODP) Expedition 311 carried out in 2005. The working area lies across the continental slope off the coast of central Vancouver Island, British Columbia, Canada, with water depths ranging from 2600 m in the trench to 500 m on the upper slope, where it is well above the minimum depth for gas hydrate stability. This paper gives the details of the data acquisition and conventional processing and then focuses on describing the new data at six individual sites along a transect across the gas hydrate zone. Five of the sites were drilled during the Expedition 311. The transect of sites commences at the almost undeformed incoming sediments seaward of the region where gas hydrates are observed; these ocean basin sediments were drilled at a site 40 km southeast during Ocean Drilling Program (ODP) Leg 146. The transect continues up the continental slope into the area of hydrate stability, with a site on top of the frontal accretionary ridge where normal faulting indicates margin parallel extension; a site in the first slope basin overlying a buried ridge near a reflectivity wipe-out zone; a site adjacent to Site 889 of Leg 146 and therefore acting as a tie hole; the most landward site at the shallowest end of the hydrate stability field; and a cold vent site at one of several blank zones close to a bright spot region in the seismic records. JF - Proceedings of the Integrated Ocean Drilling Program AU - Scherwath, M AU - Riedel, Michael AU - Spence, G D AU - Hyndman, R D AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 SP - 25 PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - seismic profiles KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - geophysical methods KW - Integrated Ocean Drilling Program KW - cores KW - seismic methods KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - surveys KW - geophysical profiles KW - ocean floors KW - Cascadia subduction zone KW - Expedition 311 KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50868145?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.atitle=Data+report%3B+seismic+structure+beneath+the+north+Cascadia+drilling+transect+of+IODP+Expedition+311&rft.au=Scherwath%2C+M%3BRiedel%2C+Michael%3BSpence%2C+G+D%3BHyndman%2C+R+D%3BReidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Scherwath&rft.aufirst=M&rft.date=2005-01-01&rft.volume=311&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.110.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 14 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sects. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; cores; East Pacific; Expedition 311; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Integrated Ocean Drilling Program; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; sediments; seismic methods; seismic profiles; surveys DO - http://dx.doi.org/10.2204/iodp.proc.311.110.2006 ER - TY - JOUR T1 - Investigation of brine geochemistry and implications for geologic sequestration of CO (sub 2) in deep sedimentary basins AN - 50549389; 2009-002593 JF - Abstracts - AAPG, Eastern Section Meeting AU - Sass, Bruce AU - Gupta, Neeraj AU - Jagucki, Phil AU - Sminchak, Joel AU - Massey-Norton, John AU - Spane, Frank AU - Hohm, Mike Y1 - 2005 PY - 2005 DA - 2005 EP - unpaginated PB - American Association of Petroleum Geologists. Eastern Section, Tulsa, OK VL - 2005 KW - United States KW - petroleum exploration KW - isotopes KW - sedimentary basins KW - well-logging KW - sandstone KW - Rose Run Sandstone KW - petroleum KW - fluid phase KW - stable isotopes KW - reservoir rocks KW - deep-seated structures KW - carbon dioxide KW - sedimentary rocks KW - major elements KW - lower Paleozoic KW - Appalachian Basin KW - carbon KW - Ohio River valley KW - basins KW - chemical composition KW - geochemistry KW - West Virginia KW - North America KW - carbon sequestration KW - underground storage KW - Paleozoic KW - isotope ratios KW - C-13/C-12 KW - depth KW - brines KW - cap rocks KW - reservoir properties KW - clastic rocks KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50549389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.atitle=Investigation+of+brine+geochemistry+and+implications+for+geologic+sequestration+of+CO+%28sub+2%29+in+deep+sedimentary+basins&rft.au=Sass%2C+Bruce%3BGupta%2C+Neeraj%3BJagucki%2C+Phil%3BSminchak%2C+Joel%3BMassey-Norton%2C+John%3BSpane%2C+Frank%3BHohm%2C+Mike&rft.aulast=Sass&rft.aufirst=Bruce&rft.date=2005-01-01&rft.volume=2005&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+-+AAPG%2C+Eastern+Section+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.net/documents/abstracts/2005eastern/abstracts/sass.htm LA - English DB - GeoRef N1 - Conference title - ESAAPG 2005 N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - OK N1 - SuppNotes - Accessed on Dec. 19, 2006 N1 - Last updated - 2016-10-25 N1 - CODEN - #06714 N1 - SubjectsTermNotLitGenreText - Appalachian Basin; basins; brines; C-13/C-12; cap rocks; carbon; carbon dioxide; carbon sequestration; chemical composition; clastic rocks; deep-seated structures; depth; fluid phase; geochemistry; isotope ratios; isotopes; lower Paleozoic; major elements; North America; Ohio River valley; Paleozoic; permeability; petroleum; petroleum exploration; reservoir properties; reservoir rocks; Rose Run Sandstone; sandstone; sedimentary basins; sedimentary rocks; stable isotopes; underground storage; United States; well-logging; West Virginia ER - TY - JOUR T1 - Proceedings of the Integrated Ocean Drilling Program; Cascadia margin gas hydrates; Expedition 311 of the riserless drilling platform; Balboa, Panama, to Victoria, British Columbia (Canada); Sites U1325-U1329; 28 August-28 October 2005 AN - 50479888; 2007-101788 JF - Proceedings of the Integrated Ocean Drilling Program AU - Reidel, Michael AU - Collett, Timothy S AU - Malone, Mitchell J AU - Guerin, Gilles AU - Akiba, Fumio AU - Blanc-Valleron, Marie-Madeleine AU - Ellis, Michelle AU - Hashimoto, Yoshitaka AU - Heuer, Verena AU - Higashi, Yosuke AU - Holland, Melanie AU - Jackson, Peter D AU - Kaneko, Masanori AU - Kastner, Miriam AU - Kim, Ji-Hoon AU - Kitajima, Hiroko AU - Long, Philip E AU - Malinverno, Alberto AU - Myers, Greg AU - Palekar, Leena D AU - Pohlman, John AU - Schultheiss, Peter AU - Teichert, Barbara AU - Torres, Marta E AU - Trehu, Anne M AU - Wang, Jiasheng AU - Wortmann, Ulrich G AU - Yoshioka, Hideyoshi Y1 - 2005 PY - 2005 DA - 2005 EP - variously paginated PB - IODP Management International, Washington, DC VL - 311 KW - East Pacific KW - lithostratigraphy KW - continental margin KW - petrology KW - Northeast Pacific KW - gas hydrates KW - marine geology KW - IODP Site U1326 KW - IODP Site U1327 KW - Integrated Ocean Drilling Program KW - IODP Site U1329 KW - cores KW - marine sediments KW - North Pacific KW - IODP Site U1325 KW - Pacific Ocean KW - sediments KW - ocean floors KW - Cascadia subduction zone KW - geochemistry KW - Expedition 311 KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50479888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Reidel%2C+Michael%3BCollett%2C+Timothy+S%3BMalone%2C+Mitchell+J%3BGuerin%2C+Gilles%3BAkiba%2C+Fumio%3BBlanc-Valleron%2C+Marie-Madeleine%3BEllis%2C+Michelle%3BHashimoto%2C+Yoshitaka%3BHeuer%2C+Verena%3BHigashi%2C+Yosuke%3BHolland%2C+Melanie%3BJackson%2C+Peter+D%3BKaneko%2C+Masanori%3BKastner%2C+Miriam%3BKim%2C+Ji-Hoon%3BKitajima%2C+Hiroko%3BLong%2C+Philip+E%3BMalinverno%2C+Alberto%3BMyers%2C+Greg%3BPalekar%2C+Leena+D%3BPohlman%2C+John%3BSchultheiss%2C+Peter%3BTeichert%2C+Barbara%3BTorres%2C+Marta+E%3BTrehu%2C+Anne+M%3BWang%2C+Jiasheng%3BWortmann%2C+Ulrich+G%3BYoshioka%2C+Hideyoshi&rft.aulast=Reidel&rft.aufirst=Michael&rft.date=2005-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Proceedings+of+the+Integrated+Ocean+Drilling+Program%3B+Cascadia+margin+gas+hydrates%3B+Expedition+311+of+the+riserless+drilling+platform%3B+Balboa%2C+Panama%2C+to+Victoria%2C+British+Columbia+%28Canada%29%3B+Sites+U1325-U1329%3B+28+August-28+October+2005&rft.title=Proceedings+of+the+Integrated+Ocean+Drilling+Program%3B+Cascadia+margin+gas+hydrates%3B+Expedition+311+of+the+riserless+drilling+platform%3B+Balboa%2C+Panama%2C+to+Victoria%2C+British+Columbia+%28Canada%29%3B+Sites+U1325-U1329%3B+28+August-28+October+2005&rft.issn=1930-1014&rft_id=info:doi/10.2204%2Fiodp.proc.311.2006 L2 - http://iodp.tamu.edu/publications/exp301/301toc.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Aug. 3, 2007; individual chapters are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cascadia subduction zone; continental margin; cores; East Pacific; Expedition 311; gas hydrates; geochemistry; Integrated Ocean Drilling Program; IODP Site U1325; IODP Site U1326; IODP Site U1327; IODP Site U1329; lithostratigraphy; marine geology; marine sediments; North Pacific; Northeast Pacific; ocean floors; Pacific Ocean; petrology; sediments DO - http://dx.doi.org/10.2204/iodp.proc.311.2006 ER - TY - JOUR T1 - Carbon sequestration in flood basalts; an overlooked sequestration option AN - 50434596; 2009-047894 AB - Flood basalts are an overlooked but potentially important host medium for geologic sequestration of anthropogenic CO (sub 2.) Most lava flows have flow tops that are porous, permeable, and have enormous capacity for storage of CO (sub 2) . Major flood basalts exist in the U.S. and India. Approximately 25% of India's current coal-fueled power plants are located on or in close proximity to the Deccan Traps. In the U.S., over $400M has been invested in characterizing flood basalts in the Pacific Northwest that provides a unique geological database from which to assess the potential of basalt flows for carbon sequestration. For the Columbia River Basalt Group alone, conservative estimates of storage capacity are in excess of 100 GtCO (sub 2) . Laboratory experiments confirm rapid chemical reaction of CO (sub 2) -saturated pore water with basalts to form stable carbonate minerals. Supercomputer simulations of CO (sub 2) injections on the scale of about 100 km (super 2) show that dense low-permeability basalt rock overlying sequential flows act as effective seals allowing time for the mineralization reactions to occur. Mineralization rates actually may be controlled by hydrodynamic mixing processes in vesicular basalts, not the kinetics of rock-water reactions. Preliminary studies shows that several already existing boreholes located on the Hanford site in Washington State could be used for CO (sub 2) injections to validate the laboratory findings on mineralization and CO (sub 2) containment in a field setting. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - McGrail, B Peter AU - Schaef, H Todd AU - Reidel, Stephen P AU - Dooley, James J AU - Anonymous Y1 - 2005 PY - 2005 DA - 2005 SP - 1 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 14 KW - United States KW - flood basalts KW - Washington KW - carbon sequestration KW - volcanic rocks KW - igneous rocks KW - host rocks KW - Columbia River Basalt Group KW - Hanford Site KW - gas storage KW - Miocene KW - reservoir rocks KW - Cenozoic KW - Tertiary KW - Neogene KW - basalts KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50434596?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Carbon+sequestration+in+flood+basalts%3B+an+overlooked+sequestration+option&rft.au=McGrail%2C+B+Peter%3BSchaef%2C+H+Todd%3BReidel%2C+Stephen+P%3BDooley%2C+James+J%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2005-01-01&rft.volume=14&rft.issue=&rft.spage=A90&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AAPG 2005 annual convention N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2009-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - basalts; carbon sequestration; Cenozoic; Columbia River Basalt Group; flood basalts; gas storage; Hanford Site; host rocks; igneous rocks; Miocene; Neogene; reservoir rocks; Tertiary; United States; volcanic rocks; Washington ER - TY - JOUR T1 - A new method for enhanced production of gas hydrates with carbon dioxide AN - 50416715; 2009-055508 AB - Presently, depressurization, thermal stimulation, inhibitor injection, or a combination of these methods have been considered as possible means of gas hydrate production. A new method for enhanced gas hydrate recovery (EGHR) is described in this paper that takes advantage of the physical and thermodynamic properties of mixtures in the H (sub 2) O-CO (sub 2) system combined with controlled multiphase flow, heat, and mass transport processes in hydrate-bearing porous media. The key steps in the process have been validated in laboratory-scale experiments. The method is attractive from a climate change perspective in that injected CO (sub 2) is permanently sequestered as a solid gas hydrate as part of the production process. Additionally, refilling pore space with CO (sub 2) hydrate is expected to maintain the mechanical stability of gas producing sediments, thus enhancing safety during gas production from both terrestrial and marine environments. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - McGrail, B Peter AU - Schaef, H Todd AU - White, Mark D AU - Zhu, Tao AU - Hunter, Robert B AU - Anonymous Y1 - 2005 PY - 2005 DA - 2005 SP - 1 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 14 KW - laboratory studies KW - experimental studies KW - carbon sequestration KW - gas hydrates KW - natural gas KW - petroleum KW - enhanced recovery KW - thermodynamic properties KW - production KW - new methods KW - carbon dioxide KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50416715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=A+new+method+for+enhanced+production+of+gas+hydrates+with+carbon+dioxide&rft.au=McGrail%2C+B+Peter%3BSchaef%2C+H+Todd%3BWhite%2C+Mark+D%3BZhu%2C+Tao%3BHunter%2C+Robert+B%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2005-01-01&rft.volume=14&rft.issue=&rft.spage=A90&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AAPG 2005 annual convention N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2009-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; enhanced recovery; experimental studies; gas hydrates; laboratory studies; natural gas; new methods; petroleum; production; thermodynamic properties ER - TY - JOUR T1 - NMR methods for in-situ biofilm metabolism studies: spatial and temporal resolved measurements AN - 21249159; 11662445 AB - We are developing novel nuclear magnetic resonance (NMR) microscopy, spectroscopy and combined NMR/optical techniques for the study of biofilms under known, controlled growth conditions. Objectives include: time and depth-resolved metabolite concentrations with isotropic spatial resolution on the order of 10 microns, metabolic pathways and flux rates, mass transport and ultimately their correlation with gene expression by optical microscopy in biofilms. We describe the implementation of ex-situ grown biofilms to improve growth environment control and NMR analysis. In-situ NMR depth resolved metabolite profiling techniques are introduced and demonstrated for a Shewanella oneidensis strain MR-1 biofilm. Finally, initial combined confocal fluorescence and magnetic resonance images are shown for a GFP-labeled Shewanella biofilm. These methods are equally applicable to other biofilm systems of interest; thus they may provide a significant contribution toward the understanding of adherent cell metabolism. JF - Water Science & Technology AU - Majors, P D AU - McLean, J S AU - Fredrickson, J K AU - Wind, R A AD - Pacific Northwest National Laboratory, MSIN: K8-98, Richland, WA 99352, USA, ( Y1 - 2005 PY - 2005 DA - 2005 SP - 7 EP - 12 PB - IWA Publishing VL - 52 IS - 7 SN - 0273-1223, 0273-1223 KW - Microbiology Abstracts B: Bacteriology; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts KW - Adherent cells KW - Shewanella oneidensis KW - Biofilms KW - AQ 00001:Water Resources and Supplies KW - SW 0540:Properties of water KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21249159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+%26+Technology&rft.atitle=NMR+methods+for+in-situ+biofilm+metabolism+studies%3A+spatial+and+temporal+resolved+measurements&rft.au=Majors%2C+P+D%3BMcLean%2C+J+S%3BFredrickson%2C+J+K%3BWind%2C+R+A&rft.aulast=Majors&rft.aufirst=P&rft.date=2005-01-01&rft.volume=52&rft.issue=7&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Water+Science+%26+Technology&rft.issn=02731223&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-02-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Biofilms; Shewanella oneidensis ER - TY - JOUR T1 - CARBON NANOTUBES (CNTs) FOR THE DEVELOPMENT OF ELECTROCHEMICAL BIOSENSORS AN - 21112565; 11188751 AB - Carbon nanotube (CNT) is a very attractive material for the development of biosensors because of its capability to provide strong electrocatalytic activity and minimize surface fouling of the sensors. This article reviews our recent developments of oxidase- and dehydrogenase-amperometric biosensors based on the immobilization of CNTs, the co-immobilization of enzymes on the CNTs/Nafion or the CNT/Teflon composite materials, or the attachment of enzymes on the controlled-density aligned CNT-nanoelectrode arrays. The excellent electrocatalytic activities of the CNTs on the redox reactions of hydrogen peroxide, nicotinamide adenine dinucleotide (NADH), and homocysteine have been demonstrated. Successful applications of the CNT-based biosensors reviewed herein include the low-potential detections of glucose, organophosphorus compounds, and alcohol. JF - Frontiers in Bioscience AU - Lin, Y AU - Yantasee, W AU - Wang, J AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA Y1 - 2005 PY - 2005 DA - 2005 SP - 492 EP - 505 VL - 10 SN - 1093-9946, 1093-9946 KW - Biotechnology and Bioengineering Abstracts KW - Fouling KW - Organophosphorus compounds KW - composite materials KW - NADH KW - Glucose KW - Enzymes KW - Biosensors KW - Carbon KW - NAD KW - Hydrogen peroxide KW - Reviews KW - alcohols KW - nanotubes KW - Immobilization KW - homocysteine KW - W 30955:Biosensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21112565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Frontiers+in+Bioscience&rft.atitle=CARBON+NANOTUBES+%28CNTs%29+FOR+THE+DEVELOPMENT+OF+ELECTROCHEMICAL+BIOSENSORS&rft.au=Lin%2C+Y%3BYantasee%2C+W%3BWang%2C+J&rft.aulast=Lin&rft.aufirst=Y&rft.date=2005-01-01&rft.volume=10&rft.issue=&rft.spage=492&rft.isbn=&rft.btitle=&rft.title=Frontiers+in+Bioscience&rft.issn=10939946&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Biosensors; Carbon; nanotubes; Enzymes; composite materials; Hydrogen peroxide; alcohols; Glucose; NAD; Reviews; homocysteine; Immobilization; Fouling; Organophosphorus compounds; NADH ER - TY - JOUR T1 - Characterization of the human blood plasma proteome AN - 20858978; 6488116 AB - We describe methods for broad characterization of the human plasma proteome. The combination of stepwise immunoglobulin G (IgG) and albumin protein depletion by affinity chromatography and ultrahigh-efficiency capillary liquid chromatography separations coupled to ion trap-tandem mass spectrometry enabled identification of 2392 proteins from a single plasma sample with an estimated confidence level of > 94%, and an additional 2198 proteins with an estimated confidence level of 80%. The relative abundances of the identified proteins span a range of over eight orders of magnitude in concentration (< 30 pg/mL to similar to 30 mg/mL), facilitated by the attomole-level sensitivity of the analysis methods. More than 80% of the observed proteins demonstrate interactions with IgG and/or albumin, and the human plasma protein loss in the affinity chromatography/strong cation exchange/reversed-phase liquid chromatography-tandem mass spectrometry methodology was investigated in detail. The results of this study provide a basis for a wide range of plasma proteomics studies, including broad quantitation of relative abundances in comparative studies of the identification of novel protein disease markers, as well as further studies of protein-protein interactions. JF - Proteomics AU - Shen, Yufeng AU - Kim, Jeongkwon AU - Strittmatter, Eric F AU - Jacobs, Jon M AU - Camp, David GII AU - Fang, Ruihua AU - Tolie, Nikola AU - Moore, Ronald J AU - Smith, Richard D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, USA, rds@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 4034 EP - 4045 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 15 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts KW - Capillary LC KW - 2-D LC KW - Human plasma KW - MS/MS KW - Affinity chromatography KW - Plasma proteins KW - Blood KW - Cations KW - Liquid chromatography KW - Albumin KW - Immunoglobulin G KW - proteomics KW - Quantitation KW - Mass spectroscopy KW - Protein interaction KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20858978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Characterization+of+the+human+blood+plasma+proteome&rft.au=Shen%2C+Yufeng%3BKim%2C+Jeongkwon%3BStrittmatter%2C+Eric+F%3BJacobs%2C+Jon+M%3BCamp%2C+David+GII%3BFang%2C+Ruihua%3BTolie%2C+Nikola%3BMoore%2C+Ronald+J%3BSmith%2C+Richard+D&rft.aulast=Shen&rft.aufirst=Yufeng&rft.date=2005-01-01&rft.volume=5&rft.issue=15&rft.spage=4034&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401246 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-09-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Plasma proteins; Affinity chromatography; Blood; Cations; Liquid chromatography; Albumin; Immunoglobulin G; proteomics; Quantitation; Protein interaction; Mass spectroscopy DO - http://dx.doi.org/10.1002/pmic.200401246 ER - TY - JOUR T1 - Studying cellular processes and detecting disease with protein microarrays AN - 19448058; 6891893 AB - Protein microarrays are a rapidly developing analytic tool with diverse applications in biomedical research. These applications include profiling of disease markers or autoimmune responses, understanding molecular pathways, protein modifications, and protein activities. One factor that is driving this expanding usage is the wide variety of experimental formats that protein microarrays can take. In this review, we provide a short, conceptual overview of the different approaches for protein microarray. We then examine some of the most significant applications of these microarrays to date, with an emphasis on how global protein analyses can be used to facilitate biomedical research. JF - Drug Metabolism Reviews AU - Zangar, R C AU - Varnum, S M AU - Bollinger, N AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P7-56, Richland, WA 99352, USA, richard.zangar@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 473 EP - 487 VL - 37 IS - 3 SN - 0360-2532, 0360-2532 KW - Biotechnology and Bioengineering Abstracts KW - Drug metabolism KW - Reviews KW - Protein arrays KW - W 30915:Pharmaceuticals & Vaccines UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19448058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Drug+Metabolism+Reviews&rft.atitle=Studying+cellular+processes+and+detecting+disease+with+protein+microarrays&rft.au=Zangar%2C+R+C%3BVarnum%2C+S+M%3BBollinger%2C+N&rft.aulast=Zangar&rft.aufirst=R&rft.date=2005-01-01&rft.volume=37&rft.issue=3&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Drug+Metabolism+Reviews&rft.issn=03602532&rft_id=info:doi/10.1080%2F03602530500205309 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Protein arrays; Reviews; Drug metabolism DO - http://dx.doi.org/10.1080/03602530500205309 ER - TY - JOUR T1 - A proteomic study of the HUPO Plasma Proteome Project's pilot samples using an accurate mass and time tag strategy AN - 19441226; 6931586 AB - Characterization of the human blood plasma proteome is critical to the discovery of routinely useful clinical biomarkers. We used an accurate mass and time (AMT) tag strategy with high-resolution mass accuracy cLC-FT-ICR MS to perform a global proteomic analysis of pilot study samples as part of the HUPO Plasma Proteome Project. HUPO reference serum and citrated plasma samples from African Americans, Asian Americans, and Caucasian Americans were analyzed, in addition to a Pacific Northwest National Laboratory reference serum and plasma. The AMT tag strategy allowed us to leverage two previously published "shotgun" proteomics experiments to perform global analyses on these samples in triplicate in less than 4 days total analysis time. A total of 722 (22% with multiple peptide identifications) International Protein Index redundant proteins, or 377 protein families by ProteinProphet, were identified over the six individual HUPO serum and plasma samples. The samples yielded a similar number of identified redundant proteins in the plasma samples (average 446 +/- 23) as found in the serum samples (average 440 +/- 20). These proteins were identified by an average of 956 +/- 35 unique peptides in plasma and 930 +/- 11 unique peptides in serum. In addition to this high-throughput analysis, the AMT tag approach was used with a Z-score normalization to compare relative protein abundances. This analysis highlighted both known differences in serum and citrated plasma such as fibrinogens, and reproducible differences in peptide abundances from proteins such as soluble activin receptor-like kinase 7b and glycoprotein m6b. The AMT tag strategy not only improved our sample throughput but also provided a basis for estimated quantitation. JF - Proteomics AU - Adkins, Joshua N AU - Monroe, Matthew E AU - Auberry, Kenneth J AU - Shen, Yufeng AU - Jacobs, Jon M AU - Camp II, David G AU - Vitzthum, Frank AU - Rodland, Karin D AU - Zangar, Richard C AU - Smith, Richard D AU - Pounds, Joel G AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA, joel.pounds@pnl.gov Y1 - 2005 PY - 2005 DA - 2005 SP - 3454 EP - 3466 PB - Wiley-VCH, Postfach 101161 Weinheim 69451 Germany, [mailto:info@wiley-vch.de], [URL:http://www.wiley-vch.de/publish/en/] VL - 5 IS - 13 SN - 1615-9853, 1615-9853 KW - Biotechnology and Bioengineering Abstracts KW - Blood KW - Cluster analysis KW - HUPO KW - cLC-FT-ICR MS KW - Mass spectrometry KW - Plasma KW - Serum KW - Activin KW - Fibrinogen KW - protein families KW - proteomics KW - Glycoproteins KW - biomarkers KW - Quantitation KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19441226?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=A+proteomic+study+of+the+HUPO+Plasma+Proteome+Project%27s+pilot+samples+using+an+accurate+mass+and+time+tag+strategy&rft.au=Adkins%2C+Joshua+N%3BMonroe%2C+Matthew+E%3BAuberry%2C+Kenneth+J%3BShen%2C+Yufeng%3BJacobs%2C+Jon+M%3BCamp+II%2C+David+G%3BVitzthum%2C+Frank%3BRodland%2C+Karin+D%3BZangar%2C+Richard+C%3BSmith%2C+Richard+D%3BPounds%2C+Joel+G&rft.aulast=Adkins&rft.aufirst=Joshua&rft.date=2005-01-01&rft.volume=5&rft.issue=13&rft.spage=3454&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159853&rft_id=info:doi/10.1002%2Fpmic.200401333 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Activin; Blood; Fibrinogen; protein families; Glycoproteins; proteomics; Quantitation; biomarkers DO - http://dx.doi.org/10.1002/pmic.200401333 ER - TY - JOUR T1 - Effect of Culture Conditions on Microorganism Identification by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry AN - 17803340; 6164470 AB - Matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) has been used to identify bacteria based upon protein signatures. This research shows that while some different proteins are produced by vegetative bacteria when they are cultured in different growth media, positive identification with MALDI-TOF MS is still possible with the protocol established at the Pacific Northwest National Laboratory A core set of small proteins remain constant under at least four different culture media conditions and blood agar plates, including minimal medium M9, rich media, tryptic soy broth (TSB) or Luria-Bertani (LB) broth, and blood agar plates, such that analysis of the intact cells by matrix- assisted laser desorption/ionization mass spectrometry allows for consistent identification. JF - Applied and Environmental Microbiology AU - Valentine, Nancy AU - Wunschel, Sharon AU - Wunschel, David AU - Petersen, Catherine AU - Wahl, Karen AD - Pacific Northwest National Laboratory, Richland, Washington Y1 - 2005/01// PY - 2005 DA - Jan 2005 SP - 58 EP - 64 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 71 IS - 1 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Blood KW - Agar KW - Desorption KW - Cores KW - Microorganisms KW - Lasers KW - Cell culture KW - Media (culture) KW - Soybeans KW - A 01116:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17803340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Effect+of+Culture+Conditions+on+Microorganism+Identification+by+Matrix-Assisted+Laser+Desorption+Ionization+Mass+Spectrometry&rft.au=Valentine%2C+Nancy%3BWunschel%2C+Sharon%3BWunschel%2C+David%3BPetersen%2C+Catherine%3BWahl%2C+Karen&rft.aulast=Valentine&rft.aufirst=Nancy&rft.date=2005-01-01&rft.volume=71&rft.issue=1&rft.spage=58&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Agar; Blood; Desorption; Cores; Microorganisms; Cell culture; Lasers; Media (culture); Soybeans ER - TY - JOUR T1 - Evaluating concentration estimation errors in ELISA microarray experiments AN - 17531433; 6234346 AB - Background: Enzyme-linked immunosorbent assay (ELISA) is a standard immunoassay to estimate a protein's concentration in a sample. Deploying ELISA in a microarray format permits simultaneous estimation of the concentrations of numerous proteins in a small sample. These estimates, however, are uncertain due to processing error and biological variability. Evaluating estimation error is critical to interpreting biological significance and improving the ELISA microarray process. Estimation error evaluation must be automated to realize a reliable high-throughput ELISA microarray system. In this paper, we present a statistical method based on propagation of error to evaluate concentration estimation errors in the ELISA microarray process. Although propagation of error is central to this method and the focus of this paper, it is most effective only when comparable data are available. Therefore, we briefly discuss the roles of experimental design, data screening, normalization, and statistical diagnostics when evaluating ELISA microarray concentration estimation errors. Results: We use an ELISA microarray investigation of breast cancer biomarkers to illustrate the evaluation of concentration estimation errors. The illustration begins with a description of the design and resulting data, followed by a brief discussion of data screening and normalization. In our illustration, we fit a standard curve to the screened and normalized data, review the modeling diagnostics, and apply propagation of error. We summarize the results with a simple, three-panel diagnostic visualization featuring a scatterplot of the standard data with logistic standard curve and 95% confidence intervals, an annotated histogram of sample measurements, and a plot of the 95% concentration coefficient of variation, or relative error, as a function of concentration. Conclusions: This statistical method should be of value in the rapid evaluation and quality control of high-throughput ELISA microarray analyses. Applying propagation of error to a variety of ELISA microarray concentration estimation models is straightforward. Displaying the results in the three-panel layout succinctly summarizes both the standard and sample data while providing an informative critique of applicability of the fitted model, the uncertainty in concentration estimates, and the quality of both the experiment and the ELISA microarray process. JF - BMC Bioinformatics AU - Daly, Don Simone AU - White, Amanda M AU - Varnum, Susan M AU - Anderson, Kevin K AU - Zangar, Richard C AD - Statistical and Mathematical Sciences, Pacific Northwest National Laboratory, PO Box 999, Richland, WA, USA, DS.Daly@PNL.gov Y1 - 2005 PY - 2005 DA - 2005 PB - BioMed Central Ltd., Middlesex House 34-42 Cleveland Street London W1T 4LB UK, [mailto:info@biomedcentral.com], [URL:http://www.biomedcentral.com] VL - 6 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Enzyme-linked immunosorbent assay KW - Mathematical models KW - Quality control KW - Reviews KW - Statistical analysis KW - Breast cancer KW - Bioinformatics KW - Immunoassays KW - biomarkers KW - W4 140:Bioinformatics & Computers in Health & Medicine KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17531433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMC+Bioinformatics&rft.atitle=Evaluating+concentration+estimation+errors+in+ELISA+microarray+experiments&rft.au=Daly%2C+Don+Simone%3BWhite%2C+Amanda+M%3BVarnum%2C+Susan+M%3BAnderson%2C+Kevin+K%3BZangar%2C+Richard+C&rft.aulast=Daly&rft.aufirst=Don&rft.date=2005-01-01&rft.volume=6&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=BMC+Bioinformatics&rft.issn=1471-2105&rft_id=info:doi/10.1186%2F1471-2105-6-17 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Enzyme-linked immunosorbent assay; Statistical analysis; Mathematical models; Reviews; Bioinformatics; biomarkers; Breast cancer; Immunoassays; Quality control DO - http://dx.doi.org/10.1186/1471-2105-6-17 ER - TY - JOUR T1 - Regional Comparisons of Coastal Sediment Contamination Detected by a Biomarker (P450 HRGS; EPA Method 4425) AN - 16192579; 6159260 AB - Pollution investigations by the Center for Coastal Monitoring and Assessment of the National Oceanic and Atmospheric Administration (NOAA) have been conducted since 1984 and have incorporated extensive biological and chemical analyses. Since 1993, one of the biological tests utilized in these studies has been the biomarker P450HRGS, which is more recently described as EPA Method 4425. Extracts of sediments are applied to a human cell line with a reporter gene (firefly luciferase) at the CYP1A1 site. Light produced by the extracts is a function of the concentrations and potencies of those compounds with an affinity for Ah-receptor (certain polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and dioxins/furans). These compounds are carcinogenic and can produce chronic toxicity, and those containing chlorine are persistent and bioaccumulated. Nineteen coastal regions and 1309 samples from the three U.S. coasts have been evaluated as part of the NOAA investigations. The stratified random sampling approach used by NOAA provides estimates of the areas (km super(2)) of each region containing levels of the compounds above thresholds. From analysis of the database, sediments with concentrations at or below 11 mu g benzo[a]pyrene equivalents (B[a]PEq)/g would not be expected to produce effects on the benthos. At 32 mu g B[a]PEq/g and above there is the potential for impacts on the biota, and above 60 mu g/g, the degradation of the benthic community has been observed. Several of the regional surveys found no samples at or above 60 mu g B[a]PEq/g, but 60% of the samples from New York Harbor (280 km super(2)) were above this level. Analyses of data from Puget Sound and Chesapeake Bay demonstrate an increase in samples above 32 mu g B[a]PEq/g in more populated and industrial regions. Method 4425 serves as both a biomarker, simulating the response of an organism (with CYP1A) exposed to inducing compounds, and as a bioanalytical technique measuring the levels of these chemicals in the samples. A targeted investigation of the distribution of the three important classes of compounds identified by Method 4425 would be more cost-effective by first screening samples by this method before expending substantial funds in the detailed chemical analysis of all samples. JF - Environmental Science & Technology AU - Anderson, J W AU - Hartwell, SI AU - Hameedi, MJ AD - Pacific Northwest National Laboratory, Battelle Marine Sciences Laboratory, 1529 W. Sequim Bay Rd., Sequim, WA 98382, USA, jw.anderson@pnl.gov Y1 - 2005/01/01/ PY - 2005 DA - 2005 Jan 01 SP - 17 EP - 23 VL - 39 IS - 1 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Toxicology Abstracts KW - ANW, USA, New York, New York, New York Harbor KW - Chemical Analysis KW - Biomarkers KW - Biota KW - Economics KW - Sediment Contamination KW - Aromatic hydrocarbons KW - PCB KW - Bioindicators KW - Surveys KW - Coastal waters KW - Furans KW - ANW, USA, Chesapeake Bay KW - USA, Washington, Puget Sound KW - EPA KW - Coastal zone KW - Chemical analysis KW - Benthos KW - Molecular structure KW - Pollution monitoring KW - Degradation KW - Polychlorinated Biphenyls KW - Assessments KW - Carcinogenicity KW - Pollutant persistence KW - USA, New York, New York, New York Harbor KW - Sampling KW - PCB compounds KW - Coasts KW - Marine KW - Sediment pollution KW - Polycyclic aromatic hydrocarbons KW - USA, Chesapeake Bay KW - Toxicity KW - biomarkers KW - Harbours KW - Chlorinated hydrocarbons KW - Air pollution KW - Bioaccumulation KW - INE, USA, Washington, Puget Sound KW - SW 3010:Identification of pollutants KW - X 24222:Analytical procedures KW - Q2 09187:Geochemistry of sediments KW - P 1000:MARINE POLLUTION KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16192579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Regional+Comparisons+of+Coastal+Sediment+Contamination+Detected+by+a+Biomarker+%28P450+HRGS%3B+EPA+Method+4425%29&rft.au=Anderson%2C+J+W%3BHartwell%2C+SI%3BHameedi%2C+MJ&rft.aulast=Anderson&rft.aufirst=J&rft.date=2005-01-01&rft.volume=39&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes049283b LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-10-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Molecular structure; Sediment pollution; Pollution monitoring; Biomarkers; Toxicity; Harbours; Chlorinated hydrocarbons; Coastal zone; Bioaccumulation; Pollutant persistence; Aromatic hydrocarbons; Chemical analysis; PCB; Air pollution; Polycyclic aromatic hydrocarbons; Carcinogenicity; Economics; Furans; Coastal waters; biomarkers; Benthos; Bioindicators; EPA; Biota; PCB compounds; Degradation; Assessments; Polychlorinated Biphenyls; Chemical Analysis; Surveys; Sediment Contamination; Sampling; Coasts; USA, Washington, Puget Sound; ANW, USA, New York, New York, New York Harbor; USA, Chesapeake Bay; INE, USA, Washington, Puget Sound; USA, New York, New York, New York Harbor; ANW, USA, Chesapeake Bay; Marine DO - http://dx.doi.org/10.1021/es049283b ER - TY - JOUR T1 - A new multiscale flow network generation scheme for land surface models AN - 51687509; 2005-060058 JF - Geophysical Research Letters AU - Guo, Jianzhong AU - Xu, Liang AU - Leung, L Ruby Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 4 PB - American Geophysical Union, Washington, DC VL - 31 IS - 23 SN - 0094-8276, 0094-8276 KW - United States KW - scale factor KW - hydrology KW - numerical models KW - slopes KW - landform evolution KW - tortuosity KW - landforms KW - rivers KW - case studies KW - kinematics KW - Oklahoma KW - topography KW - streamflow KW - runoff KW - fluvial features KW - Blue River basin KW - algorithms KW - accuracy KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51687509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=A+new+multiscale+flow+network+generation+scheme+for+land+surface+models&rft.au=Guo%2C+Jianzhong%3BXu%2C+Liang%3BLeung%2C+L+Ruby&rft.aulast=Guo&rft.aufirst=Jianzhong&rft.date=2004-12-01&rft.volume=31&rft.issue=23&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2004GL021381 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 8 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; Blue River basin; case studies; fluvial features; hydrology; kinematics; landform evolution; landforms; numerical models; Oklahoma; rivers; runoff; scale factor; slopes; streamflow; topography; tortuosity; United States DO - http://dx.doi.org/10.1029/2004GL021381 ER - TY - JOUR T1 - The role of monitoring in risk-informed assessments involving uncertainty AN - 51493408; 2007-016920 JF - Eos, Transactions, American Geophysical Union AU - Meyer, P D AU - Nicholson, T J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H13A EP - 0387 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - programs KW - monitoring KW - pollutants KW - decommissioning KW - statistical analysis KW - pollution KW - decision-making KW - calibration KW - indicators KW - remediation KW - models KW - case studies KW - transport KW - risk assessment KW - probability KW - uncertainty KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51493408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+role+of+monitoring+in+risk-informed+assessments+involving+uncertainty&rft.au=Meyer%2C+P+D%3BNicholson%2C+T+J%3BAnonymous&rft.aulast=Meyer&rft.aufirst=P&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - calibration; case studies; decision-making; decommissioning; indicators; models; monitoring; pollutants; pollution; probability; programs; remediation; risk assessment; statistical analysis; transport; uncertainty ER - TY - JOUR T1 - Estimating prior model probabilities using an entropy principle AN - 51493053; 2007-016927 JF - Eos, Transactions, American Geophysical Union AU - Ye, M AU - Meyer, P D AU - Neuman, S P AU - Pohlmann, K AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H13A EP - 0397 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Pinal County Arizona KW - Bayesian analysis KW - entropy KW - statistical analysis KW - mathematical models KW - decision-making KW - environmental analysis KW - case studies KW - Nevada Test Site KW - Apache Leap Research Site KW - maximum likelihood KW - errors KW - mathematical methods KW - Arizona KW - Superior Arizona KW - risk assessment KW - probability KW - permeability KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51493053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Estimating+prior+model+probabilities+using+an+entropy+principle&rft.au=Ye%2C+M%3BMeyer%2C+P+D%3BNeuman%2C+S+P%3BPohlmann%2C+K%3BAnonymous&rft.aulast=Ye&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Apache Leap Research Site; Arizona; Bayesian analysis; case studies; decision-making; entropy; environmental analysis; errors; mathematical methods; mathematical models; maximum likelihood; Nevada; Nevada Test Site; permeability; Pinal County Arizona; probability; risk assessment; statistical analysis; Superior Arizona; United States ER - TY - JOUR T1 - A systematic approach for developing conceptual models of contaminant transport at the Hanford Site AN - 51492576; 2007-016919 JF - Eos, Transactions, American Geophysical Union AU - Murray, C J AU - Last, G V AU - Rohay, V J AU - Schelling, F J AU - Hildebrand, R D AU - Morse, J G AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H13A EP - 0386 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - programs KW - U. S. Department of Energy KW - Washington KW - pollutants KW - government agencies KW - waste disposal sites KW - pollution KW - Hanford Site KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - transport KW - soil pollution KW - theoretical models KW - waste disposal KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51492576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+systematic+approach+for+developing+conceptual+models+of+contaminant+transport+at+the+Hanford+Site&rft.au=Murray%2C+C+J%3BLast%2C+G+V%3BRohay%2C+V+J%3BSchelling%2C+F+J%3BHildebrand%2C+R+D%3BMorse%2C+J+G%3BAnonymous&rft.aulast=Murray&rft.aufirst=C&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - environmental analysis; government agencies; ground water; Hanford Site; pollutants; pollution; programs; radioactive waste; remediation; soil pollution; soils; theoretical models; transport; U. S. Department of Energy; United States; Washington; waste disposal; waste disposal sites; waste management; water pollution ER - TY - JOUR T1 - Geochemical characterization using geophysical data and Markov chain Monte Carlo methods; a case study at the South Oyster bacterial transport site in Virginia AN - 51445926; 2007-043488 JF - Water Resources Research AU - Chen, Jinsong AU - Hubbard, Susan AU - Rubin, Yoram AU - Murray, Chris AU - Roden, Eric AU - Majer, Ernest Y1 - 2004/12// PY - 2004 DA - December 2004 EP - W12412 PB - American Geophysical Union, Washington, DC VL - 40 IS - 12 SN - 0043-1397, 0043-1397 KW - United States KW - hydrology KW - Virginia KW - ground-penetrating radar KW - Monte Carlo analysis KW - statistical analysis KW - kriging KW - geophysical methods KW - radar methods KW - electromagnetic waves KW - mathematical models KW - transport KW - stochastic processes KW - mathematical methods KW - bacteria KW - South Oyster Virginia KW - electromagnetic methods KW - probability KW - Markov chain analysis KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51445926?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Geochemical+characterization+using+geophysical+data+and+Markov+chain+Monte+Carlo+methods%3B+a+case+study+at+the+South+Oyster+bacterial+transport+site+in+Virginia&rft.au=Chen%2C+Jinsong%3BHubbard%2C+Susan%3BRubin%2C+Yoram%3BMurray%2C+Chris%3BRoden%2C+Eric%3BMajer%2C+Ernest&rft.aulast=Chen&rft.aufirst=Jinsong&rft.date=2004-12-01&rft.volume=40&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2003WR002883 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 43 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - bacteria; electromagnetic methods; electromagnetic waves; geophysical methods; ground-penetrating radar; hydrology; kriging; Markov chain analysis; mathematical methods; mathematical models; Monte Carlo analysis; probability; radar methods; South Oyster Virginia; statistical analysis; stochastic processes; transport; United States; Virginia DO - http://dx.doi.org/10.1029/2003WR002883 ER - TY - JOUR T1 - Remote sensing of subsurface microbial transformations AN - 51435832; 2007-054273 JF - Eos, Transactions, American Geophysical Union AU - Williams, K H AU - Ntarlagiannis, D AU - Slater, L AU - Long, P AU - Dohnalkova, A AU - Hubbard, S S AU - Banfield, J F AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract B51F EP - 01 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - biomineralization KW - biomass KW - biochemistry KW - physicochemical properties KW - geophysical methods KW - biostimulation KW - pollution KW - resistivity KW - bioremediation KW - electrochemical properties KW - variations KW - remediation KW - ground water KW - aquifers KW - acoustical methods KW - physical properties KW - dynamics KW - chemical properties KW - ecology KW - water pollution KW - geochemistry KW - remote sensing KW - microorganisms KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51435832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Remote+sensing+of+subsurface+microbial+transformations&rft.au=Williams%2C+K+H%3BNtarlagiannis%2C+D%3BSlater%2C+L%3BLong%2C+P%3BDohnalkova%2C+A%3BHubbard%2C+S+S%3BBanfield%2C+J+F%3BAnonymous&rft.aulast=Williams&rft.aufirst=K&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acoustical methods; aquifers; biochemistry; biomass; biomineralization; bioremediation; biostimulation; chemical properties; dynamics; ecology; electrochemical properties; geochemistry; geophysical methods; ground water; microorganisms; physical properties; physicochemical properties; pollution; remediation; remote sensing; resistivity; variations; water pollution ER - TY - JOUR T1 - Effects of river discharge on hyporheic exchange flows in large gravel-bed rivers; an empirical study AN - 51354662; 2007-116349 JF - Eos, Transactions, American Geophysical Union AU - Hanrahan, T P AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H12B EP - 08 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Idaho KW - in situ KW - vertical orientation KW - surface water KW - hyporheic zone KW - rivers KW - flows KW - Hells Canyon KW - gravel-bed streams KW - fluvial features KW - streams KW - Snake River KW - Idaho County Idaho KW - hydraulic conductivity KW - discharge KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51354662?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Effects+of+river+discharge+on+hyporheic+exchange+flows+in+large+gravel-bed+rivers%3B+an+empirical+study&rft.au=Hanrahan%2C+T+P%3BAnonymous&rft.aulast=Hanrahan&rft.aufirst=T&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - discharge; flows; fluvial features; gravel-bed streams; Hells Canyon; hydraulic conductivity; hyporheic zone; Idaho; Idaho County Idaho; in situ; rivers; Snake River; streams; surface water; United States; vertical orientation ER - TY - JOUR T1 - Permeability changes due to secondary mineral precipitation during weathering of low-level radioactive waste glass in the vadose zone AN - 51351892; 2007-116335 JF - Eos, Transactions, American Geophysical Union AU - Bacon, D H AU - Freedman, V L AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H11E EP - 0336 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - solute transport KW - volcanic rocks KW - glasses KW - secondary minerals KW - igneous rocks KW - unsaturated zone KW - simulation KW - weathering KW - radioactive waste KW - transport KW - deposition KW - precipitation KW - hydraulic conductivity KW - waste disposal KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51351892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Permeability+changes+due+to+secondary+mineral+precipitation+during+weathering+of+low-level+radioactive+waste+glass+in+the+vadose+zone&rft.au=Bacon%2C+D+H%3BFreedman%2C+V+L%3BAnonymous&rft.aulast=Bacon&rft.aufirst=D&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - deposition; glasses; hydraulic conductivity; igneous rocks; permeability; precipitation; radioactive waste; secondary minerals; simulation; solute transport; transport; unsaturated zone; volcanic rocks; waste disposal; weathering ER - TY - JOUR T1 - Tracing and apportioning sources of uranium to the Hanford reach of the Columbia River using uranium isotopes AN - 51281811; 2008-039138 JF - Eos, Transactions, American Geophysical Union AU - Christensen, J N AU - Dresel, P E AU - Conrad, M E AU - Patton, G W AU - DePaolo, D J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H41I EP - 04 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - alkaline earth metals KW - U. S. Department of Energy KW - Washington KW - isotopes KW - pollutants KW - isotope ratios KW - Columbia River KW - government agencies KW - unsaturated zone KW - pollution KW - Hanford Site KW - drinking water KW - stable isotopes KW - Sr-87/Sr-86 KW - radioactive isotopes KW - Vernita Bridge KW - metals KW - uranium KW - U-238 KW - discharge KW - actinides KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51281811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Tracing+and+apportioning+sources+of+uranium+to+the+Hanford+reach+of+the+Columbia+River+using+uranium+isotopes&rft.au=Christensen%2C+J+N%3BDresel%2C+P+E%3BConrad%2C+M+E%3BPatton%2C+G+W%3BDePaolo%2C+D+J%3BAnonymous&rft.aulast=Christensen&rft.aufirst=J&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; Columbia River; discharge; drinking water; government agencies; Hanford Site; isotope ratios; isotopes; metals; pollutants; pollution; radioactive isotopes; Sr-87/Sr-86; stable isotopes; strontium; U-238; U. S. Department of Energy; United States; unsaturated zone; uranium; Vernita Bridge; Washington ER - TY - JOUR T1 - New insights from whole rock and mineral data on the magmatic and tectonic evolution of the Columbia River Basalt Group (USA) AN - 51241141; 2008-074532 JF - Eos, Transactions, American Geophysical Union AU - Caprarelli, G AU - Reidel, S P AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract V31D EP - 07 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - geologic thermometry KW - volcanic rocks KW - X-ray diffraction data KW - igneous rocks KW - rifting KW - melts KW - Cenozoic KW - plutonic rocks KW - whole rock KW - chemical reactions KW - basalts KW - tectonics KW - chemical composition KW - P-T conditions KW - experimental studies KW - Washington KW - lithosphere KW - magmatism KW - Columbia River Basalt Group KW - Miocene KW - ultramafics KW - Tertiary KW - geodynamics KW - Neogene KW - magmas KW - peridotites KW - fractional crystallization KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51241141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=New+insights+from+whole+rock+and+mineral+data+on+the+magmatic+and+tectonic+evolution+of+the+Columbia+River+Basalt+Group+%28USA%29&rft.au=Caprarelli%2C+G%3BReidel%2C+S+P%3BAnonymous&rft.aulast=Caprarelli&rft.aufirst=G&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chemical composition; chemical reactions; Columbia River Basalt Group; experimental studies; fractional crystallization; geodynamics; geologic thermometry; igneous rocks; lithosphere; magmas; magmatism; melts; Miocene; Neogene; P-T conditions; peridotites; plutonic rocks; rifting; tectonics; Tertiary; ultramafics; United States; volcanic rocks; Washington; whole rock; X-ray diffraction data ER - TY - JOUR T1 - Estimation of NAPL/water interfacial areas in well-characterized porous media AN - 51232593; 2008-076843 JF - Eos, Transactions, American Geophysical Union AU - Dobson, R AU - Schroth, M H AU - Oostrom, M AU - Zeyer, J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H33A EP - 0451 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - tomography KW - experimental studies KW - characterization KW - pollution KW - techniques KW - porous materials KW - porosity KW - reservoir rocks KW - geometry KW - nonaqueous phase liquids KW - models KW - ultrastructure KW - laboratory studies KW - traps KW - tracers KW - algorithms KW - water wells KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51232593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Estimation+of+NAPL%2Fwater+interfacial+areas+in+well-characterized+porous+media&rft.au=Dobson%2C+R%3BSchroth%2C+M+H%3BOostrom%2C+M%3BZeyer%2C+J%3BAnonymous&rft.aulast=Dobson&rft.aufirst=R&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - algorithms; characterization; experimental studies; geometry; laboratory studies; models; nonaqueous phase liquids; pollution; pore water; porosity; porous materials; reservoir rocks; techniques; tomography; tracers; traps; ultrastructure; water wells ER - TY - JOUR T1 - In situ gaseous treatment and reoxidation studies; implications for vadose zone remediation AN - 51227882; 2008-076812 JF - Eos, Transactions, American Geophysical Union AU - Zhong, L AU - Thornton, E C AU - Oostrom, M AU - Deng, B AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H31D EP - 0446 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - technology KW - numerical models KW - in situ KW - gaseous phase KW - oxidation KW - unsaturated zone KW - soil treatment KW - pollution KW - hydrogen sulfide KW - migration of elements KW - remediation KW - controls KW - chemical reactions KW - water treatment KW - sediments KW - waste disposal KW - mobility KW - permeability KW - disposal barriers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51227882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=In+situ+gaseous+treatment+and+reoxidation+studies%3B+implications+for+vadose+zone+remediation&rft.au=Zhong%2C+L%3BThornton%2C+E+C%3BOostrom%2C+M%3BDeng%2C+B%3BAnonymous&rft.aulast=Zhong&rft.aufirst=L&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - chemical reactions; controls; disposal barriers; gaseous phase; hydrogen sulfide; in situ; migration of elements; mobility; numerical models; oxidation; permeability; pollution; remediation; sediments; soil treatment; technology; unsaturated zone; waste disposal; water treatment ER - TY - JOUR T1 - Xenon isotope releases from buried transuranic waste AN - 51227271; 2008-076800 JF - Eos, Transactions, American Geophysical Union AU - Dresel, P E AU - Waichler, S R AU - Kennedy, B M AU - Hayes, J C AU - McIntyre, J I AU - Giles, J R AU - Sondrup, A J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H31D EP - 0434 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - experimental studies KW - isotopes KW - detection limit KW - pollution KW - migration of elements KW - xenon KW - radioactive waste KW - models KW - radioactive isotopes KW - transport KW - noble gases KW - nuclear facilities KW - waste disposal KW - fission KW - underground disposal KW - diffusivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51227271?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Xenon+isotope+releases+from+buried+transuranic+waste&rft.au=Dresel%2C+P+E%3BWaichler%2C+S+R%3BKennedy%2C+B+M%3BHayes%2C+J+C%3BMcIntyre%2C+J+I%3BGiles%2C+J+R%3BSondrup%2C+A+J%3BAnonymous&rft.aulast=Dresel&rft.aufirst=P&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - detection limit; diffusivity; experimental studies; fission; isotopes; migration of elements; models; noble gases; nuclear facilities; pollution; radioactive isotopes; radioactive waste; soils; transport; underground disposal; waste disposal; xenon ER - TY - JOUR T1 - Hydrostratigraphic characterization using high-resolution borehole moisture logs and grain-size distribution statistics AN - 51085353; 2008-081349 JF - Eos, Transactions, American Geophysical Union AU - Ward, A L AU - Keller, J M AU - Zhang, Z F AU - Gee, G W AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H23A EP - 1110 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - scale factor KW - aquifer vulnerability KW - moisture KW - characterization KW - preferential flow KW - simulation KW - reservoir rocks KW - ground water KW - size distribution KW - transport KW - chemical properties KW - geochemistry KW - high-resolution methods KW - Washington KW - grain size KW - statistical analysis KW - prediction KW - pollution KW - Hanford Site KW - porous materials KW - migration of elements KW - aquifers KW - models KW - boreholes KW - hydrostratigraphy KW - heterogeneous materials KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51085353?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Hydrostratigraphic+characterization+using+high-resolution+borehole+moisture+logs+and+grain-size+distribution+statistics&rft.au=Ward%2C+A+L%3BKeller%2C+J+M%3BZhang%2C+Z+F%3BGee%2C+G+W%3BAnonymous&rft.aulast=Ward&rft.aufirst=A&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; boreholes; characterization; chemical properties; geochemistry; grain size; ground water; Hanford Site; heterogeneous materials; high-resolution methods; hydrostratigraphy; migration of elements; models; moisture; pollution; porous materials; prediction; preferential flow; reservoir rocks; scale factor; simulation; size distribution; statistical analysis; transport; United States; Washington ER - TY - JOUR T1 - Movement and remediation of a volatile, multicomponent DNAPL in a variably-saturated, heterogeneous porous medium AN - 51084725; 2008-081436 JF - Eos, Transactions, American Geophysical Union AU - Oostrom, M AU - Dane, J H AU - Wietsma, T W AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H31B EP - 0371 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - preferential flow KW - fluid dynamics KW - dense nonaqueous phase liquids KW - layered materials KW - remediation KW - nonaqueous phase liquids KW - spatial distribution KW - volatiles KW - transport KW - saturation KW - infiltration KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51084725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Movement+and+remediation+of+a+volatile%2C+multicomponent+DNAPL+in+a+variably-saturated%2C+heterogeneous+porous+medium&rft.au=Oostrom%2C+M%3BDane%2C+J+H%3BWietsma%2C+T+W%3BAnonymous&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - dense nonaqueous phase liquids; fluid dynamics; Hanford Site; infiltration; layered materials; nonaqueous phase liquids; pollutants; pollution; preferential flow; remediation; saturation; spatial distribution; transport; United States; volatiles; Washington ER - TY - JOUR T1 - Quantifying saturation-dependent anisotropy in soil hydraulic conductivity AN - 51084359; 2008-081348 JF - Eos, Transactions, American Geophysical Union AU - Zhang, Z F AU - Ward, A L AU - Gee, G W AU - White, M D AU - Keller, J M AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H23A EP - 1109 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - anisotropic materials KW - Washington KW - pollutants KW - connectivity KW - tortuosity KW - pollution KW - Hanford Site KW - porous materials KW - preferential flow KW - simulation KW - models KW - transport KW - saturation KW - hydraulic conductivity KW - anisotropy KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51084359?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Quantifying+saturation-dependent+anisotropy+in+soil+hydraulic+conductivity&rft.au=Zhang%2C+Z+F%3BWard%2C+A+L%3BGee%2C+G+W%3BWhite%2C+M+D%3BKeller%2C+J+M%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anisotropic materials; anisotropy; connectivity; Hanford Site; hydraulic conductivity; models; pollutants; pollution; porous materials; preferential flow; saturation; simulation; soils; tortuosity; transport; United States; Washington ER - TY - JOUR T1 - In situ characterization of porosity and permeability changes at high pressure; application to geological sequestration AN - 51083630; 2008-083128 JF - Eos, Transactions, American Geophysical Union AU - McGrail, B P AU - Bacon, D H AU - Saripalli, P AU - Shaw, W J AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H13I EP - 07 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - hydrates KW - carbon sequestration KW - pressure KW - laser methods KW - in situ KW - underground storage KW - human activity KW - stability KW - radar methods KW - gas storage KW - high pressure KW - porosity KW - NMR spectra KW - reservoir rocks KW - gases KW - carbon dioxide KW - lidar methods KW - transport KW - saturation KW - spectra KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51083630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=In+situ+characterization+of+porosity+and+permeability+changes+at+high+pressure%3B+application+to+geological+sequestration&rft.au=McGrail%2C+B+P%3BBacon%2C+D+H%3BSaripalli%2C+P%3BShaw%2C+W+J%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; gas storage; gases; high pressure; human activity; hydrates; in situ; laser methods; lidar methods; NMR spectra; permeability; porosity; pressure; radar methods; reservoir rocks; saturation; spectra; stability; transport; underground storage ER - TY - JOUR T1 - Estimating field-scale soil hydraulic properties and petrophysical models through joint GPR/hydrological measurement inversion AN - 51082163; 2008-081340 JF - Eos, Transactions, American Geophysical Union AU - Kowalsky, Michael B AU - Finsterle, Stefan A AU - John, P E AU - Hubbard, S S AU - Rubin, Y AU - Majer, E L AU - Ward, A L AU - Gee, G W AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H23A EP - 1101 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - soils KW - hydrology KW - water quality KW - Washington KW - three-dimensional models KW - ground-penetrating radar KW - injection KW - radar methods KW - Hanford Site KW - measurement KW - models KW - physical properties KW - boreholes KW - transient phenomena KW - neutron probe data KW - neutron probe KW - hydraulic conductivity KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51082163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Estimating+field-scale+soil+hydraulic+properties+and+petrophysical+models+through+joint+GPR%2Fhydrological+measurement+inversion&rft.au=Kowalsky%2C+Michael+B%3BFinsterle%2C+Stefan+A%3BJohn%2C+P+E%3BHubbard%2C+S+S%3BRubin%2C+Y%3BMajer%2C+E+L%3BWard%2C+A+L%3BGee%2C+G+W%3BAnonymous&rft.aulast=Kowalsky&rft.aufirst=Michael&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - boreholes; ground-penetrating radar; Hanford Site; hydraulic conductivity; hydrology; injection; measurement; models; neutron probe; neutron probe data; permeability; physical properties; radar methods; soils; three-dimensional models; transient phenomena; United States; Washington; water quality ER - TY - JOUR T1 - Numerical simulation of field-scale transport and biogeochemical reactions using a particle-based method AN - 51057642; 2008-085112 JF - Eos, Transactions, American Geophysical Union AU - Scheibe, T D AU - Brooks, S C AU - Roden, E E AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H21E EP - 1068 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - pollutants KW - numerical analysis KW - biochemistry KW - injection KW - pollution KW - simulation KW - Oak Ridge Tennessee KW - remediation KW - ground water KW - chemical reactions KW - transport KW - metals KW - Tennessee KW - Anderson County Tennessee KW - uranium KW - water resources KW - water pollution KW - kinetics KW - geochemistry KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51057642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Numerical+simulation+of+field-scale+transport+and+biogeochemical+reactions+using+a+particle-based+method&rft.au=Scheibe%2C+T+D%3BBrooks%2C+S+C%3BRoden%2C+E+E%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=T&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; Anderson County Tennessee; biochemistry; chemical reactions; geochemistry; ground water; injection; kinetics; metals; numerical analysis; Oak Ridge Tennessee; pollutants; pollution; remediation; simulation; Tennessee; transport; United States; uranium; water pollution; water resources ER - TY - JOUR T1 - Analysis of a micro-pumping test conducted within a saprolitic aquifer AN - 51056185; 2008-085110 JF - Eos, Transactions, American Geophysical Union AU - Spane, F A AU - Scheibe, T D AU - Brooks, S C AU - Kamolpornwijit, W AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H21E EP - 1066 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - pollutants KW - pumping KW - pollution KW - bioremediation KW - Oak Ridge Tennessee KW - remediation KW - ground water KW - aquifers KW - saprolite KW - metals KW - Tennessee KW - testing KW - Anderson County Tennessee KW - uranium KW - water resources KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51056185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Analysis+of+a+micro-pumping+test+conducted+within+a+saprolitic+aquifer&rft.au=Spane%2C+F+A%3BScheibe%2C+T+D%3BBrooks%2C+S+C%3BKamolpornwijit%2C+W%3BAnonymous&rft.aulast=Spane&rft.aufirst=F&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; Anderson County Tennessee; aquifers; bioremediation; ground water; metals; Oak Ridge Tennessee; pollutants; pollution; pumping; remediation; saprolite; Tennessee; testing; United States; uranium; water resources ER - TY - JOUR T1 - Incorporating sub-grid spatial variabilities into subsurface flow parameterizations for land surface modeling in ungauged basins AN - 50651336; 2008-076869 JF - Eos, Transactions, American Geophysical Union AU - Huang, M AU - Liang, X AU - Leung, R L AU - Anonymous Y1 - 2004/12// PY - 2004 DA - December 2004 SP - Abstract H33C EP - 0483 PB - American Geophysical Union, Washington, DC VL - 85 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - Usadievskiy Basin KW - numerical models KW - Australasia KW - TOPMODEL KW - spatial data KW - moisture KW - water management KW - Europe KW - Russian Federation KW - simulation KW - ground water KW - Tarrawara Basin KW - Commonwealth of Independent States KW - drainage basins KW - Australia KW - Valdai KW - discharge KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50651336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Incorporating+sub-grid+spatial+variabilities+into+subsurface+flow+parameterizations+for+land+surface+modeling+in+ungauged+basins&rft.au=Huang%2C+M%3BLiang%2C+X%3BLeung%2C+R+L%3BAnonymous&rft.aulast=Huang&rft.aufirst=M&rft.date=2004-12-01&rft.volume=85&rft.issue=47%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2004 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Australasia; Australia; Commonwealth of Independent States; discharge; drainage basins; Europe; ground water; moisture; numerical models; Russian Federation; simulation; spatial data; Tarrawara Basin; TOPMODEL; Usadievskiy Basin; Valdai; water management; water resources ER - TY - JOUR T1 - Stochastic analysis of immiscible displacement of the fluids with arbitrary viscosities and its dependence on support scale of hydrological data AN - 19413795; 6131789 AB - Stochastic analysis is commonly used to address uncertainty in the modeling of flow and transport in porous media. In the stochastic approach, the properties of porous media are treated as random functions with statistics obtained from field measurements. Several studies indicate that hydrological properties depend on the scale of measurements or support scales, but most stochastic analysis does not address the effects of support scale on stochastic predictions of subsurface processes. In this work we propose a new approach to study the scale dependence of stochastic predictions. We present a stochastic analysis of immiscible fluid-fluid displacement in randomly heterogeneous porous media. While existing solutions are applicable only to systems in which the viscosity of one phase is negligible compare with the viscosity of the other (water-air systems for example), our solutions can be applied to the immiscible displacement of fluids having arbitrarily viscosities such as NAPL-water and water-oil. Treating intrinsic permeability as a random field with statistics dependant on the permeability support scale (scale of measurements) we obtained, for one-dimensional systems, analytical solutions for the first moments characterizing unbiased predictions (estimates) of system variables, such as the pressure and fluid-fluid interface position, and we also obtained second moments, which characterize the uncertainties associated with such predictions. Next we obtained empirically scale dependent exponential correlation function of the intrinsic permeability that allowed us to study solutions of stochastic equations as a function of the support scale. We found that the first and second moments converge to asymptotic values as the support scale decreases. In our examples, the statistical moments reached asymptotic values for support scale that were approximately 1/10000 of the flow domain size. We show that analytical moment solutions compare well with the results of Monte Carlo simulations for moderately heterogeneous porous media, and that they can be used to study the effects of heterogeneity on the dynamics and stability of immiscible flow. JF - Advances in Water Resources AU - Tartakovsky, A M AU - Meakin, P AU - Huang, H AD - Pacific Northwest National Laboratory, Computational Sciences & Mathematics, P.O. Box 999/MS K1-85 Richland, WA 99352, USA, alexandre.tartakovsky@pnl.gov Y1 - 2004/12// PY - 2004 DA - December 2004 SP - 1151 EP - 1166 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl] VL - 27 IS - 12 SN - 0309-1708, 0309-1708 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Heterogeneity KW - Support scale KW - Stochastic analysis KW - Immiscible displacement KW - Front instability KW - Immiscibility KW - Mathematical models KW - Porous Media KW - Fluid Flow KW - Statistical analysis KW - Water resources KW - Correlation analysis KW - Freshwater KW - Stochastic Process KW - Permeability KW - Viscosity KW - Groundwater Movement KW - Hydrologic Data KW - AQ 00001:Water Resources and Supplies KW - Q2 09127:General papers on resources KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19413795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Stochastic+analysis+of+immiscible+displacement+of+the+fluids+with+arbitrary+viscosities+and+its+dependence+on+support+scale+of+hydrological+data&rft.au=Tartakovsky%2C+A+M%3BMeakin%2C+P%3BHuang%2C+H&rft.aulast=Tartakovsky&rft.aufirst=A&rft.date=2004-12-01&rft.volume=27&rft.issue=12&rft.spage=1151&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2004.09.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Permeability; Mathematical models; Statistical analysis; Water resources; Correlation analysis; Stochastic Process; Viscosity; Immiscibility; Porous Media; Fluid Flow; Hydrologic Data; Groundwater Movement; Freshwater DO - http://dx.doi.org/10.1016/j.advwatres.2004.09.003 ER - TY - JOUR T1 - Evolution of the PPM-family protein phosphatases in Streptomyces: duplication of catalytic domain and lateral recruitment of additional sensory domains AN - 17812272; 6178541 AB - Originally identified from eukaryotes, the Mg super(2+)- or Mn super(2+)-dependent protein phosphatases (PPMs) are a diverse group of enzymes whose members include eukaryotic PP2C and some prokaryotic serine/threonine phosphatases. In a previous study, unexpectedly large numbers of PPMs were identified in two Streptomyces genomes. In this work, a phylogenetic analysis was performed with all the PPMs available from a wide variety of microbial sources to determine the evolutionary origin of the Streptomyces PPM proteins. Consistent with earlier hypotheses, the results suggested that the microbial PPMs were relatively recent additions from eukaryotic sources. Results also indicated that the Streptomyces PPMs were divided into two major subfamilies at an early stage of their emergence in Streptomyces genomes. The first subfamily, which contains only six Streptomyces PPMs, possesses a catalytic domain whose sequence and architecture are similar to that of eukaryotic PPMs; the second subfamily contains 89 Streptomyces PPMs that lack the 5a and 5b catalytic domain motifs, similar to the PPMs SpoIIE and RsbU of Bacillus subtilis. Significant gene duplication was observed for the PPMs in the second subfamily. In addition, more than half (54%) of the Streptomyces PPMs from the second subfamily were found to have at least one additional sensory domain, most commonly the PAS or the GAF domain. Phylogenetic analysis showed that these domains tended to be clustered according to the putative physiological functions rather than taxonomic relationship, implying that they might have arisen as a result of domain recruitment in a late evolutionary stage. This study provides an insight into how Streptomyces spp. may have expanded their PPM-based signal transduction networks to enable them to respond to a greater range of environmental changes. JF - Microbiology AU - Zhang, W AU - Shi, L AD - Microbiology Department, Pacific Northwest National Laboratory, 902 Battelle Blvd, PO Box 999, Mail Stop: P7-50, Richland, WA 99352, USA, weiwen.zhang@pnl.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 4189 EP - 4197 VL - 150 IS - 12 SN - 1350-0872, 1350-0872 KW - Microbiology Abstracts B: Bacteriology KW - Phylogeny KW - Bacillus subtilis KW - Domains KW - gene duplication KW - Eukaryotes KW - protein-serine/threonine phosphatase KW - Environmental changes KW - Streptomyces KW - Magnesium KW - Manganese KW - protein phosphatase KW - Evolution KW - Signal transduction KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17812272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbiology&rft.atitle=Evolution+of+the+PPM-family+protein+phosphatases+in+Streptomyces%3A+duplication+of+catalytic+domain+and+lateral+recruitment+of+additional+sensory+domains&rft.au=Zhang%2C+W%3BShi%2C+L&rft.aulast=Zhang&rft.aufirst=W&rft.date=2004-12-01&rft.volume=150&rft.issue=12&rft.spage=4189&rft.isbn=&rft.btitle=&rft.title=Microbiology&rft.issn=13500872&rft_id=info:doi/10.1099%2Fmic.0.27480-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptomyces; Bacillus subtilis; Evolution; protein phosphatase; Phylogeny; protein-serine/threonine phosphatase; Signal transduction; gene duplication; Environmental changes; Magnesium; Domains; Manganese; Eukaryotes DO - http://dx.doi.org/10.1099/mic.0.27480-0 ER - TY - JOUR T1 - The Failure of Eco-Efficiency to Guarantee Sustainability: Future Challenges for Industrial Ecology AN - 16191060; 6159416 AB - Western industrialized societies are inherently unsustainable in their present form because they depend almost exclusively on a finite supply of nonrenewable minerals and fossil fuels. In addition, the resulting wastes cause various environmental problems ranging from widespread ecosystem disruptions to global warming. The most common response to these problems has been to promote technological improvements in eco-efficiency, which Welford defined as "adding maximum value with minimum resource use and minimum pollution." Although constructive, improvements in eco-efficiency alone will not guarantee sustainability of industrialized societies because the limited supplies of nonrenewable minerals cannot be extended indefinitely by recycling and substitution, and a transition to renewable and nuclear energy sources would result in significant negative environmental impacts, particularly if deployed on a large scale. In addition, according to the second law of thermodynamics, industrial production technologies have inherently unavoidable environmental impacts. Finally, any hardwon improvements in eco-efficiency will soon be negated if growth in population and consumption is allowed to continue. Consequently, long-term industrial sustainability can be achieved only through a transition to a steady-state economy where the total throughput of matter-energy is kept at a constant and sustainable level. This requires not only improvements in eco-efficiency but also a reassessment of fundamental societal values that erroneously equate material consumption and economic growth with well-being and happiness. JF - Environmental Progress AU - Huesemann, M H AD - Pacific Northwest National Laboratory, Marine Science Laboratory, Sequim, WA 98382, USA, michael.huesemann@pnl.gov Y1 - 2004/12// PY - 2004 DA - Dec 2004 SP - 264 EP - 270 VL - 23 IS - 4 SN - 0278-4491, 0278-4491 KW - Pollution Abstracts; Sustainability Science Abstracts KW - Fossil fuels KW - Climatic changes KW - Environmental impact KW - Sustainable development KW - Greenhouse effect KW - Recycling KW - Ecosystem disturbance KW - Waste management KW - Economics KW - Global warming KW - Nuclear energy KW - Minerals KW - P 9000:ENVIRONMENTAL ACTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16191060?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Progress&rft.atitle=The+Failure+of+Eco-Efficiency+to+Guarantee+Sustainability%3A+Future+Challenges+for+Industrial+Ecology&rft.au=Huesemann%2C+M+H&rft.aulast=Huesemann&rft.aufirst=M&rft.date=2004-12-01&rft.volume=23&rft.issue=4&rft.spage=264&rft.isbn=&rft.btitle=&rft.title=Environmental+Progress&rft.issn=02784491&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-04-01 N1 - SuppNotes - Special issue: Sustainability in chemical engineering. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Fossil fuels; Climatic changes; Economics; Environmental impact; Global warming; Sustainable development; Nuclear energy; Greenhouse effect; Recycling; Minerals; Ecosystem disturbance; Waste management ER - TY - JOUR T1 - Solution NMR Structure of the Iron-Sulfur Cluster Assembly Protein U (IscU) with Zinc Bound at the Active Site AN - 17801563; 6158699 AB - IscU is a highly conserved protein that serves as the scaffold for IscS-mediated assembly of iron-sulfur ([Fe-S]) clusters. We report the NMR solution structure of monomeric Haemophilus influenzae IscU with zinc bound at the [Fe-S] cluster assembly site. The compact core of the globular structure has an alpha - beta sandwich architecture with a three-stranded antiparallel beta -sheet and four alpha -helices. A nascent helix is located N-terminal to the core structure. The zinc is ligated by three cysteine residues and one histidine residue that are located in and near conformationally dynamic loops at one end of the IscU structure. Removal of the zinc metal by chelation results in widespread loss of structure in the apo form. The zinc-bound IscU may be a good model for iron-loaded IscU and may demonstrate structural features found in the [Fe-S] cluster bound form. Structural and functional similarities, genomic context in operons containing other homologous genes, and distributions of conserved surface residues support the hypothesis that IscU protein domains are homologous (i.e. derived from a common ancestor) with the SufE/YgdK family of [Fe-S] cluster assembly proteins. JF - Journal of Molecular Biology AU - Ramelot, T A AU - Cort, J R AU - Goldsmith-Fischman, S AU - Kornhaber, G J AU - Xiao, R AU - Shastry, R AU - Acton, T B AU - Honig, B AU - Montelione, G T AU - Kennedy, MA AD - Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA, ma_kennedy@pnl.gov Y1 - 2004/11/19/ PY - 2004 DA - 2004 Nov 19 SP - 567 EP - 583 VL - 344 IS - 2 SN - 0022-2836, 0022-2836 KW - iron-sulfur protein KW - Genetics Abstracts; Microbiology Abstracts B: Bacteriology KW - Sulfur KW - Haemophilus influenzae KW - Zinc KW - iron-sulfur proteins KW - IscU protein KW - Enzymatic activity KW - Iron KW - Conformation KW - G 07320:Bacterial genetics KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17801563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Molecular+Biology&rft.atitle=Solution+NMR+Structure+of+the+Iron-Sulfur+Cluster+Assembly+Protein+U+%28IscU%29+with+Zinc+Bound+at+the+Active+Site&rft.au=Ramelot%2C+T+A%3BCort%2C+J+R%3BGoldsmith-Fischman%2C+S%3BKornhaber%2C+G+J%3BXiao%2C+R%3BShastry%2C+R%3BActon%2C+T+B%3BHonig%2C+B%3BMontelione%2C+G+T%3BKennedy%2C+MA&rft.aulast=Ramelot&rft.aufirst=T&rft.date=2004-11-19&rft.volume=344&rft.issue=2&rft.spage=567&rft.isbn=&rft.btitle=&rft.title=Journal+of+Molecular+Biology&rft.issn=00222836&rft_id=info:doi/10.1016%2Fj.jmb.2004.08.038 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Haemophilus influenzae; iron-sulfur proteins; Zinc; Conformation; Enzymatic activity; Iron; Sulfur; IscU protein DO - http://dx.doi.org/10.1016/j.jmb.2004.08.038 ER - TY - JOUR T1 - Dissolution of uranyl microprecipitates in subsurface sediments at Hanford Site, USA AN - 51737267; 2005-026029 AB - The dissolution of uranium was investigated from contaminated sediments obtained at the US. Department of Energy (U.S. DOE) Hanford site. The uranium existed in the sediments as uranyl silicate microprecipitates in fractures, cleavages, and cavities within sediment grains. Uranium dissolution was studied in Na, Na-Ca, and NH (sub 4) electrolytes with pH ranging from 7.0 to 9.5 under ambient CO (sub 2) pressure. The rate and extent of uranium dissolution was influenced by uranyl mineral solubility, carbonate concentration, and mass transfer rate from intraparticle regions. Dissolved uranium concentration reached constant values within a month in electrolytes below pH 8.2, whereas concentrations continued to rise for over 200 d at pH 9.0 and above. The steady-state concentrations were consistent with the solubility of Na-boltwoodite and/or uranophane, which exhibit similar solubility under the experimental conditions. The uranium dissolution rate increased with increasing carbonate concentration, and was initially fast. It decreased with time as solubility equilibrium was attained, or dissolution kinetics or mass transfer rate from intraparticle regions became rate-limiting. Microscopic observations indicated that uranium precipitates were distributed in intragrain microfractures with variable sizes and connectivity to particle surfaces. Laser-induced fluorescence spectroscopic change of the uranyl microprecipitates was negligible during the long-term equilibration, indicating that uranyl speciation was not changed by dissolution. A kinetic model that incorporated mineral dissolution kinetics and grain-scale, fracture-matrix diffusion was developed to describe uranium release rate from the sediment. Model calculations indicated that 50-95% of the precipitated uranium was associated with fractures that were in close contact with the aqueous phase. The remainder of the uranium was deeply imbedded in particle interiors and exhibited effective diffusivities that were over three orders of magnitude lower than those in the fractures. JF - Geochimica et Cosmochimica Acta AU - Liu, Chongxuan AU - Zachara, John M AU - Qafoku, Odeta AU - McKinley, James P AU - Heald, Steve M AU - Wang, Zheming Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 4519 EP - 4537 PB - Pergamon, Oxford VL - 68 IS - 22 SN - 0016-7037, 0016-7037 KW - United States KW - laser methods KW - isotopes KW - mass spectra KW - solution KW - environmental analysis KW - environmental effects KW - radioactive isotopes KW - fluorescence KW - sediments KW - spectra KW - electrolytic analysis KW - thermodynamic properties KW - mass transfer KW - chemical composition KW - kinetics KW - geochemistry KW - pH KW - soils KW - chemical analysis KW - Washington KW - pollutants KW - uranyl ion KW - pollution KW - Hanford Site KW - migration of elements KW - solubility KW - models KW - precipitation KW - metals KW - mathematical methods KW - uranium KW - mobilization KW - carbonates KW - actinides KW - pore water KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51737267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Dissolution+of+uranyl+microprecipitates+in+subsurface+sediments+at+Hanford+Site%2C+USA&rft.au=Liu%2C+Chongxuan%3BZachara%2C+John+M%3BQafoku%2C+Odeta%3BMcKinley%2C+James+P%3BHeald%2C+Steve+M%3BWang%2C+Zheming&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2004-11-01&rft.volume=68&rft.issue=22&rft.spage=4519&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.04.017 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; carbonates; chemical analysis; chemical composition; electrolytic analysis; environmental analysis; environmental effects; fluorescence; geochemistry; Hanford Site; isotopes; kinetics; laser methods; mass spectra; mass transfer; mathematical methods; metals; migration of elements; mobilization; models; pH; pollutants; pollution; pore water; precipitation; radioactive isotopes; sediments; soils; solubility; solution; spectra; thermodynamic properties; United States; uranium; uranyl ion; Washington DO - http://dx.doi.org/10.1016/j.gca.2004.04.017 ER - TY - JOUR T1 - Identification and quantification of mineral precipitation in Fe (super 0) filings from a column study AN - 51732397; 2005-026174 JF - Environmental Science & Technology, ES & T AU - Kamolpornwijit, Wiwat AU - Liang, Liyuan AU - Moline, Gerilynn R AU - Hart, Todd AU - West, Olivia R Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 5757 EP - 5766 PB - American Chemical Society, Washington, DC VL - 38 IS - 21 SN - 0013-936X, 0013-936X KW - goethite KW - X-ray diffraction data KW - thermogravimetric analysis KW - mass spectra KW - aqueous solutions KW - simulation KW - iron KW - environmental effects KW - ground water KW - mineral composition KW - chemical reactions KW - mass balance KW - oxides KW - spectra KW - disposal barriers KW - corrosion KW - aragonite KW - pollutants KW - pollution KW - porosity KW - calcite KW - thermal analysis KW - physical properties KW - precipitation KW - metals KW - waste disposal KW - carbonates KW - SEM data KW - permeability KW - magnetite KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51732397?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Identification+and+quantification+of+mineral+precipitation+in+Fe+%28super+0%29+filings+from+a+column+study&rft.au=Kamolpornwijit%2C+Wiwat%3BLiang%2C+Liyuan%3BMoline%2C+Gerilynn+R%3BHart%2C+Todd%3BWest%2C+Olivia+R&rft.aulast=Kamolpornwijit&rft.aufirst=Wiwat&rft.date=2004-11-01&rft.volume=38&rft.issue=21&rft.spage=5757&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aqueous solutions; aragonite; calcite; carbonates; chemical reactions; corrosion; disposal barriers; environmental effects; goethite; ground water; iron; magnetite; mass balance; mass spectra; metals; mineral composition; oxides; permeability; physical properties; pollutants; pollution; porosity; precipitation; SEM data; simulation; spectra; thermal analysis; thermogravimetric analysis; waste disposal; X-ray diffraction data ER - TY - JOUR T1 - Colloid formation in Hanford sediments reacted with simulated tank waste AN - 51730588; 2005-026173 JF - Environmental Science & Technology, ES & T AU - Mashal, Kholoud AU - Harsh, James B AU - Flury, Markus AU - Felmy, Andrew R AU - Zhao, Hongting Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 5750 EP - 5756 PB - American Chemical Society, Washington, DC VL - 38 IS - 21 SN - 0013-936X, 0013-936X KW - United States KW - Sr-90 KW - geologic hazards KW - solutions KW - isotopes KW - underground storage tanks KW - mass spectra KW - simulation KW - environmental analysis KW - environmental effects KW - ground water KW - radioactive isotopes KW - mineral composition KW - chemical reactions KW - cesium KW - phase equilibria KW - sediments KW - spectra KW - chemical composition KW - geochemistry KW - pH KW - leaking underground storage tanks KW - alkaline earth metals KW - colloidal materials KW - Washington KW - pollutants KW - alkali metals KW - pollution KW - Hanford Site KW - atomic absorption spectra KW - models KW - ICP mass spectra KW - Cs-137 KW - microscope methods KW - metals KW - petrography KW - mobilization KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730588?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Colloid+formation+in+Hanford+sediments+reacted+with+simulated+tank+waste&rft.au=Mashal%2C+Kholoud%3BHarsh%2C+James+B%3BFlury%2C+Markus%3BFelmy%2C+Andrew+R%3BZhao%2C+Hongting&rft.aulast=Mashal&rft.aufirst=Kholoud&rft.date=2004-11-01&rft.volume=38&rft.issue=21&rft.spage=5750&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; atomic absorption spectra; cesium; chemical composition; chemical reactions; colloidal materials; Cs-137; environmental analysis; environmental effects; geochemistry; geologic hazards; ground water; Hanford Site; ICP mass spectra; isotopes; leaking underground storage tanks; mass spectra; metals; microscope methods; mineral composition; mobilization; models; petrography; pH; phase equilibria; pollutants; pollution; radioactive isotopes; sediments; simulation; solutions; spectra; Sr-90; strontium; underground storage tanks; United States; Washington ER - TY - JOUR T1 - Assessing conceptual models for subsurface reactive transport of inorganic contaminants AN - 51725273; 2005-033809 JF - Eos, Transactions, American Geophysical Union AU - Davis, James A AU - Yabusaki, Steven B AU - Steefel, Carl I AU - Zachara, John M AU - Curtis, Gary P AU - Redden, George D AU - Criscenti, Louise J AU - Honeyman, Bruce D Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 449 EP - 449, 455 PB - American Geophysical Union, Washington, DC VL - 85 IS - 44 SN - 0096-3941, 0096-3941 KW - contaminant plumes KW - pollutants KW - public policy KW - pollution KW - porosity KW - inorganic materials KW - ground water KW - spatial distribution KW - chemical reactions KW - transport KW - planning KW - bacteria KW - hydraulic conductivity KW - heterogeneity KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51725273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Assessing+conceptual+models+for+subsurface+reactive+transport+of+inorganic+contaminants&rft.au=Davis%2C+James+A%3BYabusaki%2C+Steven+B%3BSteefel%2C+Carl+I%3BZachara%2C+John+M%3BCurtis%2C+Gary+P%3BRedden%2C+George+D%3BCriscenti%2C+Louise+J%3BHoneyman%2C+Bruce+D&rft.aulast=Davis&rft.aufirst=James&rft.date=2004-11-01&rft.volume=85&rft.issue=44&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bacteria; chemical reactions; contaminant plumes; ground water; heterogeneity; hydraulic conductivity; inorganic materials; permeability; planning; pollutants; pollution; porosity; public policy; spatial distribution; transport ER - TY - JOUR T1 - Connecting vadose zone nitrate to groundwater contamination at the Hanford Site with stable isotopes AN - 51663452; 2005-073423 AB - The delta (super 15) N and delta (super 18) O of nitrate in de-ionized water leaches of vadose zone core samples are used to identify likely sources of groundwater contamination at the USDOE Hanford Site in south-central Washington. The isotopic compositions of nitrate from undisturbed vadose zone sediments (delta (super 15) N of 4 to 8%, delta (super 18) O of -9 to4%) are consistent with natural soil nitrate from microbialnitrification. The semi-arid climate of Hanford leads to seasonal shifts of 3 to 10 % in the delta (super 18) O values of near surface pore waters, which may have caused the observed range in nitrate delta (super 18) O. Buried caliche layers in the vadose zone have significantly elevated nitrate concentrations (>10x background) with similar delta (super 15) N (0 to 8%) and high delta (super 18) O (18 to 42%) relative to the background soil nitrate. Vadose zone sediments from chemical processing areas at the site also have elevated nitrate levels where concentrated chemical and radioactive wastes leaked from buried tanks or were allowed to infiltrate into the vadose zone through disposal trenches. The isotopic composition of the contaminant nitrate (delta (super 15) N of 10 to 35%, delta (super 18) O of -5 to 5%) was likely imparted by the chemistry used during plutonium recovery processing and is distinct from the background sources. Significant amounts of dilute wastewater were also discharged to the vadose zone in these areas through infiltration ponds. The isotopic compositions of nitrate from 77 groundwater wells have been analyzed. Groundwater samples from undisturbed areas of the site have nitrate isotope compositions similar to background vadose zone nitrate. Samples from groundwater nitrate plumes in the vicinity of the chemical processing areas (concentrations up to 763 mg/L as NO (sub 3) -) have isotopic compositions consistent with a mixture of background soil nitrate and nitrate that has high delta (super 18) O values, such as the nitrate associated with the caliche layers. These data indicate that most of the elevated nitrate concentrations in Hanford groundwater resulted from flushing nitrate out of the vadose zone during low-level wastewater disposal, rather than migration of the high delta (super 15) N vadose zone contamination. JF - Abstracts with Programs - Geological Society of America AU - Singeton, Michael J AU - Conrad, Mark AU - Woods, Katharine AU - DePaolo, Donald AU - Dresel, P Evan AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 329 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - caliche KW - oxygen KW - isotopes KW - waste water KW - plutonium KW - unsaturated zone KW - stable isotopes KW - cores KW - nitrogen KW - ground water KW - nitrate ion KW - water pollution KW - soils KW - Washington KW - N-15/N-14 KW - isotope ratios KW - background level KW - pollution KW - Hanford Site KW - O-18/O-16 KW - south-central Washington KW - metals KW - infiltration KW - seasonal variations KW - waste disposal KW - leaching KW - low-level waste KW - actinides KW - pore water KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51663452?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Connecting+vadose+zone+nitrate+to+groundwater+contamination+at+the+Hanford+Site+with+stable+isotopes&rft.au=Singeton%2C+Michael+J%3BConrad%2C+Mark%3BWoods%2C+Katharine%3BDePaolo%2C+Donald%3BDresel%2C+P+Evan%3BAnonymous&rft.aulast=Singeton&rft.aufirst=Michael&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=329&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; background level; caliche; cores; ground water; Hanford Site; infiltration; isotope ratios; isotopes; leaching; low-level waste; metals; N-15/N-14; nitrate ion; nitrogen; O-18/O-16; oxygen; plutonium; pollution; pore water; seasonal variations; soils; south-central Washington; stable isotopes; United States; unsaturated zone; Washington; waste disposal; waste water; water pollution ER - TY - JOUR T1 - Unsaturated flow and multicomponent reactive transport in physically and chemically heterogeneous sediments AN - 51663235; 2005-073398 AB - Coupled processes of unsaturated flow and multicomponent strontium ion exchange are investigated in a subsurface system with multiscale heterogeneities in sediment properties. High-resolution geophysical techniques and image analysis are used to generate sub-millimeter resolution maps of physical and chemical heterogeneities in an exposed 4 meter by 1 meter cut face of subsurface sediments. Permeability distribution parallel and perpendicular to laminae is measured by mini-permeameter. Water content, particle size distribution, particle density, bulk density, and cation exchange capacity measured on selected samples are used to develop pedotransfer functions for chemical and unsaturated hydraulic properties. Spatial distributions of temperature from high-resolution infrared images correlated to particle size statistics are used to interpolate hydraulic and chemical properties across the entire cut face. A geochemical model of multicomponent strontium ion exchange developed in a previous laboratory study and tested under unsaturated conditions with sediments from the field study, is the basis for simulating the aqueous, mineral, and sorption reactions in this system. The migration of a conservative tracer and a strontium solution is simulated under a range of recharge rates to explore the impact of the negative correlation between permeability and reactive surfaces. Results show the development of saturation-dependent flow paths that can limit exposure to zones of highest cation exchange capacity. JF - Abstracts with Programs - Geological Society of America AU - Yabusaki, Steven B AU - Ward, Andy L AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 325 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - sorption KW - unsaturated zone KW - ions KW - ground water KW - spatial distribution KW - chemical reactions KW - transport KW - sediments KW - chemical properties KW - ion exchange KW - heterogeneity KW - sedimentary structures KW - processes KW - alkaline earth metals KW - cation exchange capacity KW - laminations KW - grain size KW - statistical analysis KW - properties KW - planar bedding structures KW - physical properties KW - heterogeneous materials KW - metals KW - strontium KW - permeability KW - image analysis KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51663235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Unsaturated+flow+and+multicomponent+reactive+transport+in+physically+and+chemically+heterogeneous+sediments&rft.au=Yabusaki%2C+Steven+B%3BWard%2C+Andy+L%3BAnonymous&rft.aulast=Yabusaki&rft.aufirst=Steven&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; cation exchange capacity; chemical properties; chemical reactions; grain size; ground water; heterogeneity; heterogeneous materials; image analysis; ion exchange; ions; laminations; metals; permeability; physical properties; planar bedding structures; processes; properties; sedimentary structures; sediments; sorption; spatial distribution; statistical analysis; strontium; transport; unsaturated zone ER - TY - JOUR T1 - Transport and biogeochemical reaction of metals in a physically and chemically heterogeneous aquifer AN - 51660821; 2005-073399 AB - Biologically-mediated reductive dissolution and precipitation of metals and radionuclides play a key role in their subsurface transport. Physical and chemical properties of natural aquifer systems, such as reactive iron oxide surface area and hydraulic conductivity, are often highly heterogeneous in complex ways that can exert significant control on transport, natural attenuation, and active remediation processes. Typically, however, few data on the detailed distribution of these properties are available for incorporation into predictive models. In this study, we integrate field-scale geophysical, hydrologic, and geochemical data from a well-characterized site with the results of laboratory batch reaction studies to formulate numerical models of reactive transport in a heterogeneous granular aquifer. The models incorporate several levels of coupling, including effects of ferrous iron sorption onto (and associated reduction of reactive surface area of) ferric iron surfaces, microbial growth and transport dynamics, and cross-correlation between hydraulic conductivity and initial ferric iron surface area. These models are then used to evaluate the impacts of physical and chemical heterogeneity on transport of trace levels of uranium under natural conditions, as well as the effectiveness of uranium reduction and immobilization upon introduction of a soluble electron donor (a potential biostimulation remedial strategy). JF - Abstracts with Programs - Geological Society of America AU - Scheibe, Timothy D AU - Fang, Yilin AU - Roden, Eric E AU - Brooks, Scott C AU - Hubbard, Susan S AU - Chen, Jinsong AU - Chien, Yi-Ju AU - Murray, Christopher J AU - Xie, Yulong AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 325 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - iron oxides KW - isotopes KW - solution KW - iron KW - remediation KW - ground water KW - spatial distribution KW - ferric iron KW - radioactive isotopes KW - granular materials KW - chemical reactions KW - transport KW - chemical properties KW - oxides KW - reduction KW - water pollution KW - processes KW - pollutants KW - biochemistry KW - pollution KW - ferrous iron KW - aquifers KW - physical properties KW - precipitation KW - metals KW - uranium KW - hydraulic conductivity KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51660821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Transport+and+biogeochemical+reaction+of+metals+in+a+physically+and+chemically+heterogeneous+aquifer&rft.au=Scheibe%2C+Timothy+D%3BFang%2C+Yilin%3BRoden%2C+Eric+E%3BBrooks%2C+Scott+C%3BHubbard%2C+Susan+S%3BChen%2C+Jinsong%3BChien%2C+Yi-Ju%3BMurray%2C+Christopher+J%3BXie%2C+Yulong%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=Timothy&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=325&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; aquifers; biochemistry; chemical properties; chemical reactions; ferric iron; ferrous iron; granular materials; ground water; hydraulic conductivity; iron; iron oxides; isotopes; metals; oxides; physical properties; pollutants; pollution; precipitation; processes; radioactive isotopes; reduction; remediation; solution; spatial distribution; transport; uranium; water pollution ER - TY - JOUR T1 - Estimating field-scale soil hydraulic properties through joint inversion of cross-borehole GPR travel times and hydrological measurements AN - 51658786; 2005-073305 AB - Ground-penetrating radar (GPR) measurements are highly sensitive to transient and non-uniform water distributions. Although GPR travel times are ideal for inclusion in inverse methods that allow for estimation of soil hydraulic parameters, this field of research is at an early stage of development. In the present work, multiple-offset cross-borehole GPR travel times and additional hydrological measurements are used jointly to estimate field-scale soil hydraulic parameters through inversion. The current implementation of our approach allows not only for estimation of the soil hydraulic parameters, but also for estimation of the petrophysical model (in this case, the constitutive model relating the dielectric constant to the porosity and water saturation) and the spatial correlation model of permeability. The usefulness of the approach must be examined for any particular application of interest, because many factors, including flow conditions and measurement configurations, affect parameter sensitivity. We choose to examine the scenario of a point injection of water and the simultaneous collection of nearby borehole measurements. In a 2-D synthetic example, we see that small errors in the petrophysical model result in substantial errors in estimates of the uniform soil hydraulic parameters. This finding is of particular relevance, since in many GPR applications a universal petrophysical model (i.e., non-site-specific) is assumed, or a field-scale model is implemented despite its having been derived at laboratory scale. However, adverse effects from incorrect or unknown petrophysical models are shown to be alleviated by jointly estimating the petrophysical model with the soil hydraulic parameters. Additionally, we consider an example with a heterogeneous permeability distribution, and explore the possibility of estimating its spatial correlation model. Finally, the approach is applied in a 3-D setting to real field data collected at the Hanford DOE site in Washington. JF - Abstracts with Programs - Geological Society of America AU - Kowalsky, Michael B AU - Finsterle, Stefan A AU - Peterson, John E AU - Hubbard, Susan S AU - Rubin, Yoram AU - Majer, Ernest L AU - Ward, Anderson L AU - Gee, Glendon W AU - Anonymous Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 310 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - soils KW - experimental studies KW - Washington KW - ground-penetrating radar KW - crosshole methods KW - radar methods KW - Hanford Site KW - inverse problem KW - elastic waves KW - properties KW - physical models KW - two-dimensional models KW - measurement KW - ground water KW - laboratory studies KW - errors KW - traveltime KW - applications KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51658786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Estimating+field-scale+soil+hydraulic+properties+through+joint+inversion+of+cross-borehole+GPR+travel+times+and+hydrological+measurements&rft.au=Kowalsky%2C+Michael+B%3BFinsterle%2C+Stefan+A%3BPeterson%2C+John+E%3BHubbard%2C+Susan+S%3BRubin%2C+Yoram%3BMajer%2C+Ernest+L%3BWard%2C+Anderson+L%3BGee%2C+Glendon+W%3BAnonymous&rft.aulast=Kowalsky&rft.aufirst=Michael&rft.date=2004-11-01&rft.volume=36&rft.issue=5&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2004 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - applications; crosshole methods; elastic waves; errors; experimental studies; ground water; ground-penetrating radar; Hanford Site; inverse problem; laboratory studies; measurement; permeability; physical models; properties; radar methods; soils; traveltime; two-dimensional models; United States; Washington ER - TY - JOUR T1 - A film depositional model of permeability for mineral reactions in unsaturated media AN - 51133739; 2005-062202 AB - A film depositional modeling approach is developed for modeling changes in permeability due to mineral precipitation and dissolution reactions in unsaturated porous media. Such a model is needed for describing glass dissolution and secondary mineral precipitation in a low-level waste facility. The model is based on the assumption that the mineral precipitate is deposited on the pore walls as a continuous film, which may cause a reduction in permeability. Previous work in saturated media has used continuous pore-size distributions to represent the pore space. In this study, the film depositional model is developed for a discrete pore-size distribution, which is determined using the unsaturated hydraulic properties of the porous medium. This facilitates the process of dynamically updating the unsaturated hydraulic parameters used to describe fluid flow through the media. Single mineral test simulations have been conducted to test both the Mualem and Childs and Collis-George permeability models. Results from simulation of the simultaneous dissolution of low-level glassified waste and secondary mineral precipitation show that the film depositional models yield physically reasonable predictions of permeability changes due to solid-aqueous phase reactions. JF - Vadose Zone Journal AU - Freedman, Vicky L AU - Bacon, Diana H AU - Prasad Saripalli, K AU - Meyer, Philip D Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 1414 EP - 1424 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 4 KW - silicates KW - silica minerals KW - Childs and Collis model KW - data processing KW - unsaturated zone KW - aqueous solutions KW - solution KW - radioactive waste KW - size distribution KW - chemical reactions KW - Mualem model KW - digital simulation KW - framework silicates KW - glass materials KW - geochemistry KW - porous materials KW - porosity KW - boundary conditions KW - calcite KW - STORM simulation KW - liquid waste KW - precipitation KW - biofilms KW - quartz KW - hydraulic conductivity KW - waste disposal KW - low-level waste KW - carbonates KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+film+depositional+model+of+permeability+for+mineral+reactions+in+unsaturated+media&rft.au=Freedman%2C+Vicky+L%3BBacon%2C+Diana+H%3BPrasad+Saripalli%2C+K%3BMeyer%2C+Philip+D&rft.aulast=Freedman&rft.aufirst=Vicky&rft.date=2004-11-01&rft.volume=3&rft.issue=4&rft.spage=1414&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 36 N1 - PubXState - WI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Accessed on January 24, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aqueous solutions; biofilms; boundary conditions; calcite; carbonates; chemical reactions; Childs and Collis model; data processing; digital simulation; framework silicates; geochemistry; glass materials; hydraulic conductivity; liquid waste; low-level waste; Mualem model; permeability; porosity; porous materials; precipitation; quartz; radioactive waste; silica minerals; silicates; size distribution; solution; STORM simulation; unsaturated zone; waste disposal ER - TY - JOUR T1 - The relative connectivity-tortuosity tensor for conduction of water in anisotropic unsaturated soils AN - 51133281; 2005-062208 AB - The hydraulic conductivity of unsaturated anisotropic soils has recently been described with a tensorial connectivity-tortuosity (TCT) concept. We present a mathematical formalization of the connectivity-tortuosity tensor, assuming that its principal axes coincide with those of the hydraulic conductivity tensor at saturation. The hydraulic conductivity tensor of such unsaturated anisotropic soils is given as the product of a scalar variable, the symmetric connectivity-tortuosity tensor, and the hydraulic conductivity tensor at saturation. The influence of the degree of saturation on hydraulic conductivity is illustrated for four well-defined synthetic soils through radial plots of the hydraulic conductivity scalar and of the reciprocal hydraulic resistivity scalar, both as a function of saturation. The resulting curves are ellipses. The eccentricity of these ellipses is a measure of the degree of anisotropy of the soil at a given saturation. JF - Vadose Zone Journal AU - Raats, Peter A C AU - Raats, Z AU - Zhang, Fred AU - Ward, Andy L AU - Gee, Glendon W Y1 - 2004/11// PY - 2004 DA - November 2004 SP - 1471 EP - 1478 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 4 KW - water KW - soils KW - hydrology KW - anisotropic materials KW - connectivity KW - unsaturated zone KW - tortuosity KW - mathematical models KW - heterogeneous materials KW - stochastic processes KW - movement KW - hydraulic conductivity KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=The+relative+connectivity-tortuosity+tensor+for+conduction+of+water+in+anisotropic+unsaturated+soils&rft.au=Raats%2C+Peter+A+C%3BRaats%2C+Z%3BZhang%2C+Fred%3BWard%2C+Andy+L%3BGee%2C+Glendon+W&rft.aulast=Raats&rft.aufirst=Peter+A&rft.date=2004-11-01&rft.volume=3&rft.issue=4&rft.spage=1471&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 50 N1 - PubXState - WI N1 - Document feature - illus. N1 - SuppNotes - Accessed on January 25, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anisotropic materials; connectivity; heterogeneous materials; hydraulic conductivity; hydrology; mathematical models; movement; soils; stochastic processes; tortuosity; unsaturated zone; water ER - TY - JOUR T1 - Interactive toxicity of simple chemical mixtures of cadmium, mercury, methylmercury and trimethyltin: model-dependent responses AN - 17787675; 6095005 AB - Scientific and societal interest in the analysis of aggregate toxicity derives from the fact that people are seldom exposed to single chemicals, but rather to multiple agents from different sources and even to mixtures of agents from a single source. Many descriptive terms and mathematical, graphical, and statistical models have been used to evaluate the toxicity of simple mixtures. It is not very easy to distinguish clearly the intrinsic differences, distinctions and limitations of these models when applied to characterizing interactive toxicity. A series of experiments were performed to illustrate model-dependent consistencies and differences in interactive toxicity. Cultured murine renal cortical cells, target cells for metal toxicity, were treated with selected concentrations of one metal or binary mixtures of metals to give conditions of dose-additivity, response additivity, or with only one toxic member of the binary mixture. The cytotoxicity was determined at 24 h by lactate dehydrogenase release. The data were analyzed graphically and mathematically by (a) Carter's statistical isobologram, (b) Barton's non-linear, and (c) Kodell and Pounds' linear models to characterize the interaction. These models were compared and contrasted for robustness, and consistency using these common data sets. The models gave generally consistent conclusions, but each model has limitations and strengths for assessing particular mixtures scenarios. This comparison illustrates the complexity of extrapolating conclusions between models, and difficulty of public health assessment from exposures to multiple chemicals in the environment. JF - Environmental Toxicology and Pharmacology AU - Pounds, J G AU - Haider, J AU - Chen, D G AU - Mumtaz, M AD - Pacific Northwest National Laboratory, Biological Sciences Division, 902 Battelle Blvd, MS P7-58, Richland, WA 99352, USA, joel.pounds@pnl.gov Y1 - 2004/11// PY - 2004 DA - Nov 2004 SP - 101 EP - 113 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 18 IS - 2 SN - 1382-6689, 1382-6689 KW - Toxicology Abstracts KW - Cytotoxicity KW - In vitro KW - Mixtures KW - Cadmium KW - Mercury KW - Methylmercury KW - Trimethyltin KW - Dose-response KW - Nonlinear models KW - Isobologram KW - Risk assessment KW - Metals KW - Mathematical models KW - Statistics KW - Data processing KW - Toxicity KW - Public health KW - L-Lactate dehydrogenase KW - Kidney KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17787675?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Toxicology+and+Pharmacology&rft.atitle=Interactive+toxicity+of+simple+chemical+mixtures+of+cadmium%2C+mercury%2C+methylmercury+and+trimethyltin%3A+model-dependent+responses&rft.au=Pounds%2C+J+G%3BHaider%2C+J%3BChen%2C+D+G%3BMumtaz%2C+M&rft.aulast=Pounds&rft.aufirst=J&rft.date=2004-11-01&rft.volume=18&rft.issue=2&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Environmental+Toxicology+and+Pharmacology&rft.issn=13826689&rft_id=info:doi/10.1016%2Fj.etap.2004.05.012 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Metals; Cytotoxicity; Data processing; Statistics; Mathematical models; Kidney; Trimethyltin; Mercury; Cadmium; Toxicity; L-Lactate dehydrogenase; Public health DO - http://dx.doi.org/10.1016/j.etap.2004.05.012 ER - TY - JOUR T1 - Cryogenic Laser Induced Fluorescence Characterization of U(VI) in Hanford Vadose Zone Pore Waters AN - 16184863; 6112679 AB - Ambient and liquid helium temperature laser-induced time-resolved uranyl fluorescence spectroscopy was applied to study the speciation of aqueous uranyl solutions containing carbonate and phosphate and two porewater samples obtained by ultracentrifugation of U(VI)-contaminated sediments. The significantly enhanced fluorescence signal intensity and spectral resolution found at liquid helium temperature allowed, for the first time, direct fluorescence spectroscopic observation of the higher aqueous uranyl complexes with carbonate: UO sub(2)(CO sub(3)) sub(2) super(2-), UO sub(2)(CO sub(3)) sub(3) super(4-), and (UO sub(2)) sub(2)(OH) sub(3)CO sub(3) super(-). The porewater samples were nonfluorescent at room temperature. However, at liquid helium temperature, both porewater samples displayed strong, well-resolved fluorescence spectra. Comparisons of the spectroscopic characteristics of the porewaters with those of the standard uranyl-carbonate complexes confirmed that U(VI) in the porewaters existed primarily as UO sub(2)(CO sub(3)) sub(3) super(4-) along with a small amount of other minor components, such as dicalcium-urano-tricarbonate complex, Ca sub(2)UO sub(2)(CO sub(3)) sub(3), consistent with thermodynamic calculation. The U(VI)-carbonate complex is apparently the mobile species responsible for the subsurface migration of U(VI), even though the majority of the in-ground U(VI) inventory at the site from which the samples were obtained exists as intragrain U(VI)-silicate precipitates. JF - Environmental Science & Technology AU - Wang, Zheming AU - Zachara, J M AU - Yantasee, W AU - Gassman, P L AU - Liu, Chongxuan AU - Joly, A G AD - Pacific Northwest National Laboratory, MSIN K8-96, P.O. Box 999, Richland, WA 99352, USA, Zheming.Wang@pnl.gov Y1 - 2004/11/01/ PY - 2004 DA - 2004 Nov 01 SP - 5591 EP - 5597 VL - 38 IS - 21 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Speciation KW - Pore water KW - Spectroscopy KW - Migration KW - Vadose zone KW - Uranium KW - Zones KW - Cryogenics KW - Sediment pollution KW - Fluorescence KW - Thermodynamics KW - Carbonates KW - Temperature KW - Surveys KW - Interstitial Water KW - Phosphates KW - USA, Washington, Hanford KW - Radioisotopes KW - Helium KW - Standards KW - Lasers KW - Technology KW - P 2000:FRESHWATER POLLUTION KW - SW 3020:Sources and fate of pollution KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16184863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Cryogenic+Laser+Induced+Fluorescence+Characterization+of+U%28VI%29+in+Hanford+Vadose+Zone+Pore+Waters&rft.au=Wang%2C+Zheming%3BZachara%2C+J+M%3BYantasee%2C+W%3BGassman%2C+P+L%3BLiu%2C+Chongxuan%3BJoly%2C+A+G&rft.aulast=Wang&rft.aufirst=Zheming&rft.date=2004-11-01&rft.volume=38&rft.issue=21&rft.spage=5591&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes049512u LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pore water; Sediment pollution; Fluorescence; Thermodynamics; Uranium; Temperature; Radioisotopes; Lasers; Spectroscopy; Vadose zone; Speciation; Carbonates; Surveys; Interstitial Water; Migration; Phosphates; Helium; Standards; Zones; Cryogenics; Technology; USA, Washington, Hanford DO - http://dx.doi.org/10.1021/es049512u ER - TY - JOUR T1 - Estimated potassium content in Hanford workers AN - 17884657; 6062859 AB - Potassium content in male and female workers at the US Department of Energy Hanford Site was estimated based on measurements made in 2002 of super(40)K activity in the body. The super(40)K activity in females ranged from 2.1 to 4.1 kBq with an average of 3.1 +/- 0.02 kBq. The total body potassium (TBK) content in females averaged 98 +/- 0.6 g. The super(40)K activity in males ranged from 2.8 to 6.6 kBq with an average of 4.2 +/- 0.01 kBq and the average TBK was 136 +/- 0.3 g. The average TBK value for males aged 20-49 y was 140 g. The average TBK values for both genders decreased with age. The average potassium concentrations calculated for the different age ranges for males were 15-25% less than the value (1.9 gK per kg) obtained using the reported ICRP reference potassium and reference weight values. Potassium concentrations were inversely correlated with body-build index, body-mass index and body weight. These correlations could possibly be utilised to help assess the risk for disease. Future work is planned to evaluate whether monitoring of potassium concentrations could be used as a tool for the detection of diabetes and hypertension. JF - Radiation Protection Dosimetry AU - Lynch, T P AU - Rivard, J W AU - Garcia, S AD - Pacific Northwest National Laboratory, P.O. Box 999, Mailstop: B1-60, Richland, WA Y1 - 2004/10/11/ PY - 2004 DA - 2004 Oct 11 SP - 319 EP - 322 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 111 IS - 3 SN - 0144-8420, 0144-8420 KW - Health & Safety Science Abstracts KW - Age KW - Potassium KW - USA, Washington, Hanford Site KW - Nuclear power plants KW - Gender KW - hypertension KW - body weight KW - Occupational exposure KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17884657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Protection+Dosimetry&rft.atitle=Estimated+potassium+content+in+Hanford+workers&rft.au=Lynch%2C+T+P%3BRivard%2C+J+W%3BGarcia%2C+S&rft.aulast=Lynch&rft.aufirst=T&rft.date=2004-10-11&rft.volume=111&rft.issue=3&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Radiation+Protection+Dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Washington, Hanford Site; Potassium; Age; hypertension; Occupational exposure; Nuclear power plants; Gender; body weight ER - TY - JOUR T1 - A practical model for mobile, residual, and entrapped NAPL in water-wet porous media AN - 51679066; 2005-066067 AB - Flow of nonvolatile nonaqueous phase liquid (NAPL) and aqueous phases that account for mobile, entrapped, and residual NAPL in variably saturated water-wet porous media is modeled and compared against results from detailed laboratory experiments. Residual saturation formation in the vadose zone is a process that is often ignored in multifluid flow simulators, which might cause an overestimation of the volume of NAPL that reaches the ground water. Mobile NAPL is defined as being continuous in the pore space and flows under a pressure gradient or gravitational body force. Entrapped NAPL is defined as being occluded by the aqueous phase, occurring as immobile ganglia surrounded by aqueous phase in the pore space and formed when NAPL is replaced by the aqueous phase. Residual NAPL is defined as immobile, nonwater entrapped NAPL that does not drain from the pore spaces and is conceptualized as being either continuous or discontinuous. Free NAPL comprises mobile and residual NAPL. The numerical model is formulated on mass conservation equations for oil and water, transported via NAPL and aqueous phases through variably saturated porous media. To account for phase transitions, a primary variable switching scheme is implemented for the oil-mass conservation equation over three phase conditions: (1) aqueous or aqueous gas with dissolved oil, (2) aqueous or aqueous-gas with entrapped NAPL, and (3) aqueous or aqueous gas with free NAPL. Two laboratory-scale column experiments are modeled to verify the numerical model. Comparisons between the numerical simulations and experiments demonstrate the necessity to include the residual NAPL formation process in multifluid flow simulators. JF - Ground Water AU - White, M D AU - Oostrom, M AU - Lenhard, R J Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 734 EP - 746 PB - National Ground Water Association, Westerville, OH VL - 42 IS - 5 SN - 0017-467X, 0017-467X KW - experimental studies KW - numerical models KW - pollutants KW - solutes KW - pollution KW - porous materials KW - petroleum KW - fluid phase KW - equations KW - aqueous solutions KW - simulation KW - porosity KW - ground water KW - nonaqueous phase liquids KW - laboratory studies KW - infiltration KW - movement KW - mathematical methods KW - pore water KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51679066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=A+practical+model+for+mobile%2C+residual%2C+and+entrapped+NAPL+in+water-wet+porous+media&rft.au=White%2C+M+D%3BOostrom%2C+M%3BLenhard%2C+R+J&rft.aulast=White&rft.aufirst=M&rft.date=2004-10-01&rft.volume=42&rft.issue=5&rft.spage=734&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 35 N1 - PubXState - OH N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-10-25 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aqueous solutions; equations; experimental studies; fluid phase; ground water; infiltration; laboratory studies; mathematical methods; movement; nonaqueous phase liquids; numerical models; petroleum; pollutants; pollution; pore water; porosity; porous materials; simulation; solutes ER - TY - JOUR T1 - Impacts of different precipitation data sources on water budgets AN - 51661825; 2005-075938 AB - Radar and rain-gauge precipitation datasets are used to explore the impacts of different precipitation data sources on water budgets simulated by the Three-Layer Variable Infiltration Capacity (VIC-3L) land surface model over the watershed of the Illinois River at Watts, Oklahoma. Hourly grid-based NEXRAD (Next Generation Radar) Stage III precipitation data (approximately 4X4 km (super 2) ) were aggregated in time and space to daily precipitation at 1/8 degree and compared to the University of Washington (UW) daily precipitation data, which were gridded at 1/8 degree based on rain-gauge precipitation data. Comparisons of the temporal cumulative precipitation magnitudes indicate that the NEXRAD precipitation is smaller than the UW data and the rain gauge measurements. Hyetographs obtained from the NEXRAD data in general appear to be narrower with higher peaks. In addition, the NEXRAD data are better in capturing the precipitation spatial distributions than the UW data. Investigations of water fluxes based on simulations forced by the two types of precipitation datasets suggest that realistic streamflow simulations, compared to the observed daily streamflow at the outlet of the Illinois River at Watts, can be obtained if model parameters are calibrated. Compared to soil moisture of the total zone, runoff and evapotranspiration are more sensitive to the temporal and spatial distributions of precipitation, with runoff being most sensitive. Also, runoff and evapotranspiration obtained based on the NEXRAD precipitation data show more spatial heterogeneities than those obtained by using the UW precipitation data. Moreover, the magnitudes of the components of the water budget can be strongly impacted by the VIC-3L calibrated parameters, but their spatial distribution patterns may not be significantly affected. JF - Journal of Hydrology AU - Guo, Jianzhong AU - Liang, Xu AU - Ruby Leung, L A2 - Smith, Michael B. A2 - Georgakakos, Konstantine P. A2 - Liang, Xu Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 311 EP - 334 PB - Elsevier, Amsterdam VL - 298 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - soils KW - hydrology KW - gauging KW - NEXRAD KW - numerical models KW - moisture KW - rivers and streams KW - data processing KW - radar methods KW - Illinois River KW - atmospheric precipitation KW - water balance KW - evapotranspiration KW - Oklahoma KW - Watts Oklahoma KW - hydrographs KW - runoff KW - digital simulation KW - Adair County Oklahoma KW - DMIP Program KW - distributed models KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51661825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Impacts+of+different+precipitation+data+sources+on+water+budgets&rft.au=Guo%2C+Jianzhong%3BLiang%2C+Xu%3BRuby+Leung%2C+L&rft.aulast=Guo&rft.aufirst=Jianzhong&rft.date=2004-10-01&rft.volume=298&rft.issue=1-4&rft.spage=311&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2003.08.020 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - Adair County Oklahoma; atmospheric precipitation; data processing; digital simulation; distributed models; DMIP Program; evapotranspiration; gauging; hydrographs; hydrology; Illinois River; moisture; NEXRAD; numerical models; Oklahoma; radar methods; rivers and streams; runoff; soils; United States; water balance; Watts Oklahoma DO - http://dx.doi.org/10.1016/j.jhydrol.2003.08.020 ER - TY - JOUR T1 - Assessment of the effects of spatial resolutions on daily water flux simulations AN - 51660694; 2005-075937 AB - Impacts of spatially distributed precipitation and soil heterogeneity on modeling water fluxes at different spatial resolutions are investigated using the Three-layer Variable Infiltration Capacity (VIC-3L) land surface model at the Blue River watershed in Oklahoma. In this study, hourly grid-based NEXRAD (Next Generation Radar) Stage III radar precipitation data approximately at 4X4 km (super 2) resolution are used to compute daily precipitation at spatial resolutions of 1/32, 1/16, 1/8, 1/4, 1/2 and 1 degree based on an area weighted average method. Soil parameters at the corresponding six spatial resolutions are derived from the State Soil Geographic (STATSGO) soil data. The forcing data of daily maximum and minimum temperature, wind speed, and vegetation parameters are disaggregated/aggregated directly to finer/coarser spatial resolutions based on the University of Washington (UW) data, which are gridded at 1/8 degree spatial resolution. Our study suggests that a critical spatial resolution for the VIC-3L model may exist for the study watershed. For spatial resolutions finer than the critical resolution, one does not necessarily obtain better model performance in terms of runoff, evapotranspiration, and total zone soil moisture with increasing spatial resolution if the VIC-3L model parameters are calibrated at each spatial resolution. Also, model parameters calibrated at a coarse resolution can be applied to finer resolutions to obtain generally comparable results. However, model parameters calibrated at finer resolutions cannot result in comparable results when applied to resolutions coarser than the identified critical resolution. In addition, while soil moisture of the total zone is more sensitive to the spatial distributions of soil properties, runoff and evaporation are more sensitive to the spatial distribution of daily precipitation at the watershed being studied. JF - Journal of Hydrology AU - Liang, Xu AU - Guo, Jianzhong AU - Leung, L Ruby A2 - Smith, Michael B. A2 - Georgakakos, Konstantine P. A2 - Liang, Xu Y1 - 2004/10// PY - 2004 DA - October 2004 SP - 287 EP - 310 PB - Elsevier, Amsterdam VL - 298 IS - 1-4 SN - 0022-1694, 0022-1694 KW - United States KW - soils KW - hydrology KW - NEXRAD KW - numerical models KW - moisture KW - rivers and streams KW - data processing KW - watersheds KW - radar methods KW - calibration KW - evapotranspiration KW - spatial variations KW - Oklahoma KW - Bryan County Oklahoma KW - infiltration KW - runoff KW - digital simulation KW - drainage basins KW - DMIP Program KW - Blue River KW - diurnal variations KW - distributed models KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51660694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Assessment+of+the+effects+of+spatial+resolutions+on+daily+water+flux+simulations&rft.au=Liang%2C+Xu%3BGuo%2C+Jianzhong%3BLeung%2C+L+Ruby&rft.aulast=Liang&rft.aufirst=Xu&rft.date=2004-10-01&rft.volume=298&rft.issue=1-4&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2003.07.007 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - Blue River; Bryan County Oklahoma; calibration; data processing; digital simulation; distributed models; diurnal variations; DMIP Program; drainage basins; evapotranspiration; hydrology; infiltration; moisture; NEXRAD; numerical models; Oklahoma; radar methods; rivers and streams; runoff; soils; spatial variations; United States; watersheds DO - http://dx.doi.org/10.1016/j.jhydrol.2003.07.007 ER - TY - JOUR T1 - Climate Change and Energy Technologies AN - 19649398; 6039401 AB - The long time scale of the climate change problem and the inherent nature of the carbon cycle bring important implications for present technology development efforts. Even if major technology improvements are achieved for non-carbon-emitting technologies such as energy-intensity improvements, wind, solar, biomass, and nuclear over the course of the 21 super(st) century, most examinations of potential future greenhouse emissions conclude that additional technology development will be required to stabilize greenhouse gas concentrations. The development of an expanded suite of technologies including carbon capture and disposal, hydrogen systems and biotechnology hold the potential to dramatically reduce the cost of stabilizing greenhouse gas concentrations. This paper examines these technologies in the context of a global integrated assessment model of energy, agriculture, land-use, economics, and carbon cycle processes. JF - Mitigation and Adaptation Strategies for Global Change AU - Edmonds, JA AD - Pacific Northwest National Laboratory, Joint Global Change Research Institute at the University of Maryland in College Park, 8400 Baltimore Avenue, Suite 201, College Park, MD, 20740-2496, jae@pnl.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 391 EP - 416 PB - Kluwer Academic Publishers VL - 9 IS - 4 SN - 1381-2386, 1381-2386 KW - Pollution Abstracts KW - Climatic changes KW - agriculture KW - Carbon cycle KW - Hydrogen KW - Biomass KW - Land use KW - adaptability KW - Economics KW - greenhouses KW - Emissions KW - Greenhouse gases KW - Biotechnology KW - Technology KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19649398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mitigation+and+Adaptation+Strategies+for+Global+Change&rft.atitle=Climate+Change+and+Energy+Technologies&rft.au=Edmonds%2C+JA&rft.aulast=Edmonds&rft.aufirst=JA&rft.date=2004-10-01&rft.volume=9&rft.issue=4&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=Mitigation+and+Adaptation+Strategies+for+Global+Change&rft.issn=13812386&rft_id=info:doi/10.1023%2FB%3AMITI.0000038846.11924.5f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-03-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Climatic changes; Carbon cycle; agriculture; Hydrogen; Biomass; Land use; adaptability; Economics; Emissions; greenhouses; Greenhouse gases; Biotechnology; Technology DO - http://dx.doi.org/10.1023/B:MITI.0000038846.11924.5f ER - TY - JOUR T1 - Application of Hydrograph Shape and Channel Infiltration Models to an Arid Watershed AN - 17608817; 6016022 AB - Ephemeral streamflows measured during January 1995 at upstream and downstream locations in Cold Creek, near the arid Hanford Site, in the state of Washington, were analyzed. Double triangle and composite hydrograph models fit these flow events relatively well, with mean efficiency approximately 0.7. The composite hydrograph model is slightly preferable to the double triangle model for having one less parameter and a built-in method for quantifying base flow. A strong linear relationship was found between upstream and downstream flow volumes (R super(2) = 0.99, p < 0.001), and a linearized exponential decay model for channel infiltration was used to estimate flow loss to infiltration as 19% of volume per km. As compared to the humid and semiarid environments where most of these techniques have been previously applied, the colder and more arid setting of Hanford produces runoff much less frequently and has greater channel infiltration capacity. JF - Journal of Hydrologic Engineering AU - Waichler AU - Wigmosta AD - Pacific Northwest National Laboratory, K9-36, P.O. Box 999, Richland, WA 99352, USA, scott.waichler@pnl.gov Y1 - 2004/10// PY - 2004 DA - Oct 2004 SP - 433 EP - 439 VL - 9 IS - 5 SN - 1084-0699, 1084-0699 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - SW 0835:Streamflow and runoff KW - M2 556.16:Runoff (556.16) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17608817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrologic+Engineering&rft.atitle=Application+of+Hydrograph+Shape+and+Channel+Infiltration+Models+to+an+Arid+Watershed&rft.au=Waichler%3BWigmosta&rft.aulast=Waichler&rft.aufirst=&rft.date=2004-10-01&rft.volume=9&rft.issue=5&rft.spage=433&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrologic+Engineering&rft.issn=10840699&rft_id=info:doi/10.1061%2F%28ASCE%291084-0699%282004%299%3A5%28433%29 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1061/(ASCE)1084-0699(2004)9:5(433) ER - TY - JOUR T1 - MIRAGE: Model description and evaluation of aerosols and trace gases AN - 17293417; 6063216 AB - The Model for Integrated Research on Atmospheric Global Exchanges (MIRAGE) modeling system, designed to study the impacts of anthropogenic aerosols on the global environment, is described. MIRAGE consists of a chemical transport model coupled online with a global climate model. The chemical transport model simulates trace gases, aerosol number, and aerosol chemical component mass (sulfate, methane sulfonic acid (MSA), organic matter, black carbon (BC), sea salt, and mineral dust) for four aerosol modes (Aitken, accumulation, coarse sea salt, and coarse mineral dust) using the modal aerosol dynamics approach. Cloud-phase and interstitial aerosol are predicted separately. The climate model, based on Community Climate Model, Version 2 (CCM2), has physically based treatments of aerosol direct and indirect forcing. Stratiform cloud water and droplet number are simulated using a bulk microphysics parameterization that includes aerosol activation. Aerosol and trace gas species simulated by MIRAGE are presented and evaluated using surface and aircraft measurements. Surface-level SO sub(2) in North American and European source regions is higher than observed. SO sub(2) above the boundary layer is in better agreement with observations, and surface-level SO sub(2) at marine locations is somewhat lower than observed. Comparison with other models suggests insufficient SO sub(2) dry deposition; increasing the deposition velocity improves simulated SO sub(2). Surface-level sulfate in North American and European source regions is in good agreement with observations, although the seasonal cycle in Europe is stronger than observed. Surface-level sulfate at high-latitude and marine locations, and sulfate above the boundary layer, are higher than observed. This is attributed primarily to insufficient wet removal; increasing the wet removal improves simulated sulfate at remote locations and aloft. Because of the high sulfate bias, radiative forcing estimates for anthropogenic sulfur given in 2001 by S. J. Ghan and colleagues are probably too high. Surface-level dimethyl sulfide (DMS) is similar to 40% higher than observed, and the seasonal cycle shows too much DMS in local winter, partially caused by neglect of oxidation by NO sub(3). Surface-level MSA at marine locations is similar to 80% higher than observed, also attributed to insufficient wet removal. Surface-level BC is similar to 50% lower than observed in the United States and similar to 40% lower than observed globally. Treating BC as initially hydrophobic would lessen this bias. Surface-level organic matter is lower than observed in the United States, similar to BC, but shows no bias in the global comparison. Surface-level sea salt concentrations are similar to 30% lower than observed, partly caused by low temporal variance of the model's 10 m wind speeds. Submicrometer sea salt is strongly underestimated by the emissions parameterization. Dust concentrations are within a factor of 3 at most sites but tend to be lower than observed, primarily because of neglect of very large particles and underestimation of emissions and vertical transport under high-wind conditions. Accumulation and Aitken mode number concentrations and mean sizes at the surface over ocean, and condensation nuclei concentrations aloft over the Pacific, are in fair agreement with observations. Concentrations over land are generally higher than observations, with mean sizes correspondingly lower than observations, especially at some European locations. Increasing the assumed size of emitted particles produces better agreement at the surface over land, and reducing the particle nucleation rate improves the agreement aloft over land. JF - Journal of Geophysical Research. D. Atmospheres AU - Easter, Richard C AU - Ghan, Steven J AU - Zhang, Yang AU - Saylor, Rick D AU - Chapman, Elaine G AU - Laulainen, Nels S AU - Abdul-Razzak, Hayder AU - Leung, LRuby AU - Bian, Xindi AU - Zaveri, Rahul A AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2004/10// PY - 2004 DA - Oct 2004 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 109 IS - D20 SN - 0148-0227, 0148-0227 KW - Black carbon KW - Condensation nuclei KW - Dimethyl sulfide KW - Methanesulfonic acid KW - Sulfur dioxide KW - ASFA 3: Aquatic Pollution & Environmental Quality; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Citation No. D20210 KW - Q5 01503:Characteristics, behavior and fate KW - M2 551.510.42:Air Pollution (551.510.42) KW - Q2 02188:Atmospheric chemistry KW - O 2070:Meteorology KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17293417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=MIRAGE%3A+Model+description+and+evaluation+of+aerosols+and+trace+gases&rft.au=Easter%2C+Richard+C%3BGhan%2C+Steven+J%3BZhang%2C+Yang%3BSaylor%2C+Rick+D%3BChapman%2C+Elaine+G%3BLaulainen%2C+Nels+S%3BAbdul-Razzak%2C+Hayder%3BLeung%2C+LRuby%3BBian%2C+Xindi%3BZaveri%2C+Rahul+A&rft.aulast=Easter&rft.aufirst=Richard&rft.date=2004-10-01&rft.volume=109&rft.issue=D20&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&rft_id=info:doi/10.1029%2F2004JD004571 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-03-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1029/2004JD004571 ER - TY - JOUR T1 - Sequence optimization as an alternative to de novo analysis of tandem mass spectrometry data AN - 17730333; 6029729 AB - MOTIVATION: Peptide identification following tandem mass spectrometry (MS/MS) is usually achieved by searching for the best match between the mass spectrum of an unidentified peptide and model spectra generated from peptides in a sequence database. This methodology will be successful only if the peptide under investigation belongs to an available database. Our objective is to develop and test the performance of a heuristic optimization algorithm capable of dealing with some features commonly found in actual MS/MS spectra that tend to stop simpler deterministic solution approaches. RESULTS: We present the implementation of a Genetic Algorithm (GA) in the reconstruction of amino acid sequences using only spectral features, discuss some of the problems associated with this approach and compare its performance to a de novo sequencing method. The GA can potentially overcome some of the most problematic aspects associated with de novo analysis of real MS/MS data such as missing or unclearly defined peaks and may prove to be a valuable tool in the proteomics field. We assess the performance of our algorithm under conditions of perfect spectral information, in situations where key spectral features are missing, and using real MS/MS spectral data. JF - Bioinformatics AU - Heredia-Langner, Alejandro AU - Cannon, William R AU - Jarman, Kenneth D AU - Jarman, Kristin H AD - Statistical and Mathematical Sciences and Computational Biosciences, Pacific Northwest National Laboratory, Richland, WA Y1 - 2004/09/22/ PY - 2004 DA - 2004 Sep 22 SP - 2296 EP - 2304 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 20 IS - 14 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - Amino acids KW - Data processing KW - Algorithms KW - Mass spectroscopy KW - Spectrometry KW - Databases KW - Bioinformatics KW - proteomics KW - N 14010:Physical & Computer Methods & Assays KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17730333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Sequence+optimization+as+an+alternative+to+de+novo+analysis+of+tandem+mass+spectrometry+data&rft.au=Heredia-Langner%2C+Alejandro%3BCannon%2C+William+R%3BJarman%2C+Kenneth+D%3BJarman%2C+Kristin+H&rft.aulast=Heredia-Langner&rft.aufirst=Alejandro&rft.date=2004-09-22&rft.volume=20&rft.issue=14&rft.spage=2296&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Algorithms; Mass spectroscopy; Data processing; Databases; proteomics; Amino acids; Bioinformatics; Spectrometry ER - TY - JOUR T1 - Probabilistic representation of gene regulatory networks AN - 17698565; 6029721 AB - MOTIVATION: Recent experiments have established unambiguously that biological systems can have significant cell-to-cell variations in gene expression levels even in isogenic populations. Computational approaches to studying gene expression in cellular systems should capture such biological variations for a more realistic representation. RESULTS: In this paper, we present a new fully probabilistic approach to the modeling of gene regulatory networks that allows for fluctuations in the gene expression levels. The new algorithm uses a very simple representation for the genes, and accounts for the repression or induction of the genes and for the biological variations among isogenic populations simultaneously. Because of its simplicity, introduced algorithm is a very promising approach to model large-scale gene regulatory networks. We have tested the new algorithm on the synthetic gene network library bioengineered recently. The good agreement between the computed and the experimental results for this library of networks, and additional tests, demonstrate that the new algorithm is robust and very successful in explaining the experimental data. AVAILABILITY: The simulation software is available upon request. Supplementary information: Supplementary material will be made available on the OUP server. JF - Bioinformatics AU - Mao, Linyong AU - Resat, Haluk AD - Computational Biosciences Group, Pacific Northwest National Laboratory, PO Box 999, Mail Stop K1-92, Richland, WA Y1 - 2004/09/22/ PY - 2004 DA - 2004 Sep 22 SP - 2258 EP - 2269 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 20 IS - 14 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Genetics Abstracts KW - Gene expression KW - Computer programs KW - software KW - Gene regulation KW - Algorithms KW - Bioinformatics KW - Computer applications KW - Biotechnology KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics KW - G 07300:Theoretical genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17698565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Probabilistic+representation+of+gene+regulatory+networks&rft.au=Mao%2C+Linyong%3BResat%2C+Haluk&rft.aulast=Mao&rft.aufirst=Linyong&rft.date=2004-09-22&rft.volume=20&rft.issue=14&rft.spage=2258&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Algorithms; Gene expression; Computer programs; software; Bioinformatics; Computer applications; Biotechnology; Gene regulation ER - TY - JOUR T1 - Mechanisms that regulate production of reactive oxygen species by cytochrome P450 AN - 17767585; 6143194 AB - Mammalian cytochromes P450 (P450) are a family of heme-thiolate enzymes involved in the oxidative metabolism of a variety of endogenous and exogenous lipophilic compounds. Poor coupling of the P450 catalytic cycle results in continuous production of reactive oxygen species (ROS), which affects signaling pathways and other cellular functions. P450 generation of ROS is tightly controlled by regulation of gene transcription as well as by modulation of interactions between protein constituents of the monooxygenase that affects its activity, coupling, and stability. Malfunction of these mechanisms may result in a burst of ROS production, which can cause lipid peroxidation and oxidative stress. In turn, oxidative stress downregulates P450 levels by a variety of feedback mechanisms. This review provides an overview of recent advances in our understanding of these feedback mechanisms that serve to limit P450 production of ROS. Some of the more likely physiological and cellular effects of P450 generation of ROS are also discussed. JF - Toxicology and Applied Pharmacology AU - Zangar, R C AU - Davydov AU - Verma, S AD - Pacific Northwest National Laboratory, 99352, Richland, WA, USA Y1 - 2004/09/15/ PY - 2004 DA - 2004 Sep 15 SP - 316 EP - 331 VL - 199 IS - 3 SN - 0041-008X, 0041-008X KW - Toxicology Abstracts KW - monooxygenase KW - Reactive oxygen species KW - Oxidative stress KW - Gene regulation KW - Reviews KW - Transcription KW - Feedback KW - Cytochrome P450 KW - Lipid peroxidation KW - Oxidative metabolism KW - Signal transduction KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17767585?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+Applied+Pharmacology&rft.atitle=Mechanisms+that+regulate+production+of+reactive+oxygen+species+by+cytochrome+P450&rft.au=Zangar%2C+R+C%3BDavydov%3BVerma%2C+S&rft.aulast=Zangar&rft.aufirst=R&rft.date=2004-09-15&rft.volume=199&rft.issue=3&rft.spage=316&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Applied+Pharmacology&rft.issn=0041008X&rft_id=info:doi/10.1016%2Fj.taap.2004.01.018 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - monooxygenase; Reactive oxygen species; Oxidative stress; Reviews; Gene regulation; Transcription; Feedback; Cytochrome P450; Oxidative metabolism; Lipid peroxidation; Signal transduction DO - http://dx.doi.org/10.1016/j.taap.2004.01.018 ER - TY - JOUR T1 - Simultaneous 1H PFG-NMR and confocal microscopy of monolayer cell cultures: effects of apoptosis and necrosis on water diffusion and compartmentalization. AN - 66823935; 15334567 AB - We induced apoptosis and necrosis in monolayer cultures of Chinese hamster ovary cells using okadaic acid and hydrogen peroxide (H2O2), respectively, and examined the effect on water diffusion and compartmentalization using pulsed-field-gradient (PFG) 1H-NMR and simultaneous confocal microscopy. In PFG experiments characterized by a fixed diffusion time (<4.7 ms) and variable b-values (0-27000 s/mm2), 1H-NMR data collected with untreated cells exhibited multiexponential behavior. Analysis with a slow-exchange model revealed two distinct cellular water compartments with different apparent diffusion coefficients (ADCs; 0.56, 0.06 x 10(-3) mm2/s) and volume fractions (0.96 and 0.04). During the first 12 hr of necrosis or apoptosis, the amount of water in the smallest compartment increased twofold before significant changes in cell density or plasma membrane integrity occurred. Over the same period, water content in the largest compartment decreased by a factor of >2 in apoptotic cells, in accordance with observed cell shrinkage, and changed little in necrotic counterparts, where only slight swelling was evident. These results indicate that PFG 1H-NMR serves as a sensitive indicator of early cell death in monolayer cultures, and can be used to distinguish apoptosis from necrosis. Measurements of restricted diffusion and water exchange are presented to elucidate the compartment origins and justify the model assumptions. JF - Magnetic resonance in medicine AU - Minard, Kevin R AU - Holtom, Gary R AU - Kathmann, Loel E AU - Majors, Paul D AU - Thrall, Brian D AU - Wind, Robert A AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 495 EP - 505 VL - 52 IS - 3 SN - 0740-3194, 0740-3194 KW - Water KW - 059QF0KO0R KW - Okadaic Acid KW - 1W21G5Q4N2 KW - Hydrogen Peroxide KW - BBX060AN9V KW - Index Medicus KW - Animals KW - Necrosis KW - Apoptosis KW - Cricetulus KW - Cells, Cultured KW - Flow Cytometry KW - Diffusion KW - Female KW - Cricetinae KW - Microscopy, Confocal KW - Water -- metabolism KW - Magnetic Resonance Spectroscopy -- methods KW - Ovary -- cytology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66823935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Magnetic+resonance+in+medicine&rft.atitle=Simultaneous+1H+PFG-NMR+and+confocal+microscopy+of+monolayer+cell+cultures%3A+effects+of+apoptosis+and+necrosis+on+water+diffusion+and+compartmentalization.&rft.au=Minard%2C+Kevin+R%3BHoltom%2C+Gary+R%3BKathmann%2C+Loel+E%3BMajors%2C+Paul+D%3BThrall%2C+Brian+D%3BWind%2C+Robert+A&rft.aulast=Minard&rft.aufirst=Kevin&rft.date=2004-09-01&rft.volume=52&rft.issue=3&rft.spage=495&rft.isbn=&rft.btitle=&rft.title=Magnetic+resonance+in+medicine&rft.issn=07403194&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-12-14 N1 - Date created - 2004-08-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - In situ chemical reduction of aquifer sediments; enhancement of reactive iron phases and TCE dechlorination AN - 51777785; 2004-084711 JF - Environmental Science & Technology, ES & T AU - Szecsody, Jim E AU - Fruchter, Jonathan S AU - Williams, Mark D AU - Vermeul, Vince R AU - Sklarew, Debbie Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 4656 EP - 4663 PB - American Chemical Society, Washington, DC VL - 38 IS - 17 SN - 0013-936X, 0013-936X KW - chlorinated hydrocarbons KW - tetrachloroethylene KW - iron KW - temperature KW - remediation KW - ground water KW - controls KW - chemical reactions KW - sediments KW - halogenated hydrocarbons KW - reduction KW - chemical composition KW - geochemistry KW - chemical ratios KW - pH KW - experimental studies KW - in situ KW - pollutants KW - oxidation KW - dehalogenation KW - pollution KW - hydrochemistry KW - aquifers KW - models KW - organic compounds KW - metals KW - dechlorination KW - trichloroethylene KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51777785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=In+situ+chemical+reduction+of+aquifer+sediments%3B+enhancement+of+reactive+iron+phases+and+TCE+dechlorination&rft.au=Szecsody%2C+Jim+E%3BFruchter%2C+Jonathan+S%3BWilliams%2C+Mark+D%3BVermeul%2C+Vince+R%3BSklarew%2C+Debbie&rft.aulast=Szecsody&rft.aufirst=Jim&rft.date=2004-09-01&rft.volume=38&rft.issue=17&rft.spage=4656&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 57 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifers; chemical composition; chemical ratios; chemical reactions; chlorinated hydrocarbons; controls; dechlorination; dehalogenation; experimental studies; geochemistry; ground water; halogenated hydrocarbons; hydrochemistry; in situ; iron; metals; models; organic compounds; oxidation; pH; pollutants; pollution; reduction; remediation; sediments; temperature; tetrachloroethylene; trichloroethylene ER - TY - RPRT T1 - Hanford site environmental report for calendar year 2003 AN - 50579792; 2008-118704 JF - Hanford site environmental report for calendar year 2003 A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2004/09// PY - 2004 DA - September 2004 VL - PNNL-14687 KW - United States KW - soils KW - hazardous waste KW - Resource Conservation and Recovery Act KW - Washington KW - monitoring KW - isotopes KW - pollutants KW - soil vapor extraction KW - effluents KW - surface water KW - pollution KW - Hanford Site KW - environmental analysis KW - remediation KW - ground water KW - waste management KW - radioactive isotopes KW - toxicity KW - transport KW - decontamination KW - public health KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50579792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2004-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+site+environmental+report+for+calendar+year+2003&rft.title=Hanford+site+environmental+report+for+calendar+year+2003&rft.issn=&rft_id=info:doi/ L2 - http://hanford-site.pnl.gov/envreport LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 21 N1 - Availability - Pacific Northwest National Laboratory, Richland, WA, United States N1 - Document feature - illus. incl. 86 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Summary of the Hanford Site; environmental report for calendar year 2003 AN - 50578269; 2008-118700 JF - Summary of the Hanford Site; environmental report for calendar year 2003 AU - Hanf, R W AU - Morasch, L F AU - Poston, T M AU - Dirkes, R L Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 56 VL - PNNL-14687-SUM KW - United States KW - Washington KW - monitoring KW - pollutants KW - reclamation KW - surface water KW - pollution KW - Hanford Site KW - ecosystems KW - vegetation KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - air pollution KW - waste management KW - planning KW - decontamination KW - sediments KW - ecology KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50578269?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hanf%2C+R+W%3BMorasch%2C+L+F%3BPoston%2C+T+M%3BDirkes%2C+R+L&rft.aulast=Hanf&rft.aufirst=R&rft.date=2004-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Summary+of+the+Hanford+Site%3B+environmental+report+for+calendar+year+2003&rft.title=Summary+of+the+Hanford+Site%3B+environmental+report+for+calendar+year+2003&rft.issn=&rft_id=info:doi/ L2 - http://hanford-site.pnl.gov/envreport/2003/pdf/2003-envsum.pdf LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Availability - Pacific Northwest National Laboratory, Richland, WA, United States N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Using DNA microarrays to detect multiple pathogen threats in water AN - 19769126; 5936475 AB - We present four studies that illustrate the use of DNA microarrays for the detection and subsequent genotyping of waterborne pathogens. A genotyping array targeting four virulence factor genes in enterohemorrhagic Escherichia coli (EHEC) was tested. The arrays were clearly able to differentiate between E. coli O157:H7 genotypes and E. coli O91:H2. Non-pathogenic E. coli and non-target organisms were not detected on this array. In the second study, an hsp70 gene single nucleotide polymorphism (SNP) array for specific Cryptosporidium parvum detection was constructed to differentiate between principle genotypes. SNPs, and hence differences between genotypes, were easily detected on this type of array. In the third study an array for Helicobacter pylori was tested for simultaneous SNP discrimination and presence or absence of virulence factor genes. Results from this study showed that both SNP discrimination for some conserved genes, and the presence or absence of virulence factor genes was possible. In the fourth study, multiplexing was achieved by direct hybridization and detection of mRNA to the array. For highly expressed genes, visible signal was detected at 312.5 ng of total RNA, indicating that these new methods may have sufficient environmental sensitivity without the need to perform PCR. JF - Water Science & Technology: Water Supply AU - Straub, T M AU - Quinonez-Diaz, MD AU - Valdez, C O AU - Call AU - Chandler, D P A2 - Marhsall, M (ed) Y1 - 2004/09// PY - 2004 DA - September 2004 SP - 8 EP - 114 PB - IWA Publishing, Alliance House 12 Caxton Street London SW1H 0QS UK SN - 1843394650 KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Bioengineering Abstracts KW - Helicobacter pylori KW - virulence factors KW - Water Analysis KW - Genotypes KW - DNA microarrays KW - Water supplies KW - Water analysis KW - Virulence KW - Gene expression KW - Genes KW - Hsp70 protein KW - Escherichia coli KW - Water-borne diseases KW - Polymerase chain reaction KW - Testing Procedures KW - Genotyping KW - HSP70 gene KW - Pathogens KW - Nucleotides KW - Cryptosporidium parvum KW - mRNA KW - Escherichia Coli KW - Analytical Methods KW - Single-nucleotide polymorphism KW - Cryptosporidium KW - Analytical techniques KW - DNA KW - SW 3010:Identification of pollutants KW - A 01116:Bacteria KW - K 03300:Methods KW - Q5 08502:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - W 30965:Miscellaneous, Reviews KW - W4 210:Bioremediation, Bioreactors & BioCycling UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19769126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Aqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Straub%2C+T+M%3BQuinonez-Diaz%2C+MD%3BValdez%2C+C+O%3BCall%3BChandler%2C+D+P&rft.aulast=Straub&rft.aufirst=T&rft.date=2004-09-01&rft.volume=&rft.issue=&rft.spage=107&rft.isbn=1843394650&rft.btitle=Using+DNA+microarrays+to+detect+multiple+pathogen+threats+in+water&rft.title=Using+DNA+microarrays+to+detect+multiple+pathogen+threats+in+water&rft.issn=16069749&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-09-01 N1 - Last updated - 2016-05-27 ER - TY - JOUR T1 - Modeling the effects of VOC and NO sub(X) emission sources on ozone formation in Houston during the TexAQS 2000 field campaign AN - 16187574; 6000184 AB - A meteorological and chemical modeling system is used to determine the effect of ethene and propene point source emission rates on the magnitude and distribution of ozone in the vicinity of Houston. The model performance is evaluated using surface and airborne meteorological and chemical measurements made as part of the 2000 Texas Air Quality Study. A simulation that employed the reported mobile, area, biogenic, and point source emissions produced ozone mixing ratios as high as 120 ppb and distributions of nitrogen oxides that were similar to measurements at most locations, but the model underestimated ozone mixing ratios greater than 140 ppb that were located just downwind of petrochemical facilities. When the point source emission rates of ethene and propene were increased by a factor of 10, the simulated peak ozone levels were in better agreement with surface, aircraft, and lidar observations. The magnitude of the simulated ethene and olefin concentrations were in better agreement with canister samples aloft as well; however, there was still a large amount of scatter in the results. While the highest ozone mixing ratios were produced just downwind of large point source emissions of VOCs, sensitivity simulations also showed that reductions in anthropogenic emissions of NO sub(x) would be needed to reduce ozone mixing ratios over a larger area. JF - Atmospheric Environment AU - Jiang, G AU - Fast, J D AD - Pacific Northwest National Laboratory, P.O. BOX 999, K9-30, Richland, WA 99352, USA, jerome.fast@pnl.gov Y1 - 2004/09// PY - 2004 DA - Sep 2004 SP - 5071 EP - 5085 PB - Elsevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 38 IS - 30 SN - 1352-2310, 1352-2310 KW - ethene KW - propene KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Atmospheric pollution models KW - Volatile organic compounds emissions KW - Ozone mixing ratio KW - Aircraft observations KW - Remote sensing KW - Simulation KW - Petrochemicals KW - Lidar KW - Nitrogen oxides emissions KW - Air quality KW - Nitrogen oxides KW - Ozone formation KW - Emission inventories KW - Photochemicals KW - Emission measurements KW - Urban atmospheric pollution KW - USA, Texas, Houston KW - Volatile organic compounds KW - Urban areas KW - Ozone KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16187574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Modeling+the+effects+of+VOC+and+NO+sub%28X%29+emission+sources+on+ozone+formation+in+Houston+during+the+TexAQS+2000+field+campaign&rft.au=Jiang%2C+G%3BFast%2C+J+D&rft.aulast=Jiang&rft.aufirst=G&rft.date=2004-09-01&rft.volume=38&rft.issue=30&rft.spage=5071&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2004.06.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-10-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Atmospheric pollution models; Volatile organic compounds emissions; Aircraft observations; Ozone mixing ratio; Lidar; Urban atmospheric pollution; Air quality; Nitrogen oxides emissions; Ozone formation; Ozone; Emission inventories; Photochemicals; Emission measurements; Remote sensing; Petrochemicals; Simulation; Nitrogen oxides; Volatile organic compounds; Urban areas; USA, Texas, Houston DO - http://dx.doi.org/10.1016/j.atmosenv.2004.06.012 ER - TY - JOUR T1 - Precipitation of nitrate-cancrinite in Hanford Tank Sludge. AN - 66897673; 15382874 AB - The chemistry of underground storage tanks containing high-level waste at the Hanford Site in Washington State is an area of continued research interest. Thermodynamic models have predicted the formation of analcime and clinoptilolite in Hanford tanks, rather than cancrinite; however, these predictions were based on carbonate-cancrinite. We report the first observation of a nitrate-cancrinite [possibly Na8(K,Cs)(AlSiO4)6(NO3)2 x nH2O] extracted from a Hanford tank 241-AP-101 sample that was evaporated to 6, 8, and 10 M NaOH concentrations. The nitrate-cancrinite phase formed spherical aggregates (4 microm in diameter) that consisted of platy hexagonal crystals (approximately 0.2 microm thick). Cesium-137 was concentrated in these aluminosilicate structures. These phases possessed a morphology identical to that of nitrate-cancrinite synthesized using simulant tests of nonradioactive tank waste, supporting the contention that it is possible to develop nonradioactive artificial sludges. This investigation points to the continued importance of understanding the solubility of NO3-cancrinite and related phases. Knowledge of the detailed structure of actual phases in the tank waste helps with thermodynamic modeling of tank conditions and waste processing. JF - Environmental science & technology AU - Buck, E C AU - McNamara, B K AD - Pacific Northwest National Laboratory, MSIN P7-27, Richland, Washington 99352, USA. edgar.buck@pnl.gov Y1 - 2004/08/15/ PY - 2004 DA - 2004 Aug 15 SP - 4432 EP - 4438 VL - 38 IS - 16 SN - 0013-936X, 0013-936X KW - Nitrates KW - 0 KW - Radioactive Waste KW - Index Medicus KW - Solubility KW - Thermodynamics KW - Chemical Precipitation KW - Nitrates -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66897673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Precipitation+of+nitrate-cancrinite+in+Hanford+Tank+Sludge.&rft.au=Buck%2C+E+C%3BMcNamara%2C+B+K&rft.aulast=Buck&rft.aufirst=E&rft.date=2004-08-15&rft.volume=38&rft.issue=16&rft.spage=4432&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-10-05 N1 - Date created - 2004-09-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Energy fluence vs. microbial respiration rates in the deep subsurface AN - 869785341; 2011-046547 JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Onstott, Tullis C AU - Lin, Li-Hung AU - Mislowack, Bianca AU - Davidson, Mark AU - Moser, Duane AU - Gihring, Thomas AU - Pfiffner, Susan AU - Phelps, Tommy AU - Pratt, Lisa AU - Boice, Erik AU - Anonymous Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 1310 EP - 1311 PB - [International Geological Congress], [location varies] VL - 32, Part 2 KW - isotopes KW - biomass KW - sedimentary basins KW - aliphatic hydrocarbons KW - stable isotopes KW - carbon dioxide KW - noble gases KW - basins KW - South Africa KW - reduction KW - chemical composition KW - geochemistry KW - pH KW - Witwatersrand KW - processes KW - alkaline earth metals KW - methane KW - sulfates KW - free energy KW - alkanes KW - paleosalinity KW - organic compounds KW - biogenic processes KW - paleoenvironment KW - metals KW - Southern Africa KW - hydrocarbons KW - DNA KW - Africa KW - strontium KW - energy KW - microorganisms KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869785341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Energy+fluence+vs.+microbial+respiration+rates+in+the+deep+subsurface&rft.au=Onstott%2C+Tullis+C%3BLin%2C+Li-Hung%3BMislowack%2C+Bianca%3BDavidson%2C+Mark%3BMoser%2C+Duane%3BGihring%2C+Thomas%3BPfiffner%2C+Susan%3BPhelps%2C+Tommy%3BPratt%2C+Lisa%3BBoice%2C+Erik%3BAnonymous&rft.aulast=Onstott&rft.aufirst=Tullis&rft.date=2004-08-01&rft.volume=32%2C+Part+2&rft.issue=&rft.spage=1310&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Italia 2004; 32nd international geological congress N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - Africa; aliphatic hydrocarbons; alkaline earth metals; alkanes; basins; biogenic processes; biomass; carbon dioxide; chemical composition; DNA; energy; free energy; geochemistry; hydrocarbons; isotopes; metals; methane; microorganisms; noble gases; organic compounds; paleoenvironment; paleosalinity; pH; processes; reduction; sedimentary basins; South Africa; Southern Africa; stable isotopes; strontium; sulfates; Witwatersrand ER - TY - JOUR T1 - Sorption and oxic degradation of the explosive CL-20 during transport in subsurface sediments. AN - 66640394; 15212902 AB - The abiotic sorption and oxic degradation processes that control the fate of the explosive CL-20, Hexanitrohexaazaisowurtzitane, in the subsurface environment were investigated to determine the potential for vadose and groundwater contamination. Sorption of aqueous CL-20 is relatively small (K(d) = 0.02-3.83 cm3 g(-1) for 7 sediments and 12 minerals), which results in only slight retardation relative to water movement. Thus, CL-20 could move quickly through unsaturated and saturated sediments of comparable composition to groundwater, similar to the subsurface behavior of RDX. CL-20 sorption was mainly to mineral surfaces of the sediments, and the resulting isotherm was nonlinear. CL-20 abiotically degrades in oxic environments at slow rates (i.e., 10s to 100s of hours) with a wide variety of minerals, but at fast rates (i.e., minutes) in the presence of 2:1 phyllosilicate clays (hectorite, montmorillonite, nontronite), micas (biotite, illite), and specific oxides (MnO2 and the ferrous-ferric iron oxide magnetite). High concentrations of surface ferrous iron in a dithionite reduced sediment degraded CL-20 the fastest (half-life < 0.05 h), but 2:1 clays containing no structural or adsorbed ferrous iron (hectorite) could also quickly degrade CL-20 (half-life < 0.2 h). CL-20 degradation rates were slower in natural sediments (half-life 3-800 h) compared to minerals. Sediments with slow degradation rates and small sorption would exhibit the highest potential for deep subsurface migration. Products of CL-20 oxic degradation included three high molecular weight compounds and anions (nitrite and formate). The 2-3.5 moles of nitrite produced suggest CL-20 nitro-groups are degraded, and the amount of formate produced (0.2-1.2 moles) suggests the CL-20 cage structure is broken in some sediments. Identification of further degradation products and CL-20 mineralization rates is needed to fully assess the impact of these CL-20 transformation rates on the risk of CL-20 (and degradation product) subsurface movement. JF - Chemosphere AU - Szecsody, J E AU - Girvin, D C AU - Devary, B J AU - Campbell, J A AD - Pacific Northwest National Laboratory, Geosciences Department, Battelle, P.O. Box 999, MS K3-61 Richland, WA 99352, USA. jim.szecsody@pnl.gov Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 593 EP - 610 VL - 56 IS - 6 SN - 0045-6535, 0045-6535 KW - 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaaza-isowurtzitane KW - 0 KW - Aza Compounds KW - Environmental Pollutants KW - Ferrous Compounds KW - Heterocyclic Compounds KW - Minerals KW - Oxygen KW - S88TT14065 KW - Index Medicus KW - Minerals -- chemistry KW - Half-Life KW - Kinetics KW - Water Movements KW - Adsorption KW - Ferrous Compounds -- chemistry KW - Chromatography, High Pressure Liquid KW - Heterocyclic Compounds -- chemistry KW - Geologic Sediments -- analysis KW - Oxygen -- chemistry KW - Environmental Pollutants -- analysis KW - Aza Compounds -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66640394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Sorption+and+oxic+degradation+of+the+explosive+CL-20+during+transport+in+subsurface+sediments.&rft.au=Szecsody%2C+J+E%3BGirvin%2C+D+C%3BDevary%2C+B+J%3BCampbell%2C+J+A&rft.aulast=Szecsody&rft.aufirst=J&rft.date=2004-08-01&rft.volume=56&rft.issue=6&rft.spage=593&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-10-05 N1 - Date created - 2004-06-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A combined parameter scaling and inverse technique to upscale the unsaturated hydraulic parameters for heterogeneous soils AN - 51755317; 2005-013737 JF - Water Resources Research AU - Zhang, Z Fred AU - Ward, Andy L AU - Gee, Glendon W Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 13 PB - American Geophysical Union, Washington, DC VL - 40 IS - 8 SN - 0043-1397, 0043-1397 KW - United States KW - solute transport KW - scale factor KW - hydraulics KW - isotopes KW - moisture KW - combined parameter scaling KW - waste disposal sites KW - unsaturated zone KW - gravel KW - ground water KW - Cenozoic KW - laboratory studies KW - radioactive isotopes KW - sediments KW - Benton County Washington KW - heterogeneity KW - soils KW - Hanford Formation KW - experimental studies KW - Washington KW - soil profiles KW - Quaternary KW - clastic sediments KW - pollutants KW - Columbia River Basalt Group KW - Richland Washington KW - pollution KW - Lu Site KW - Hanford Site KW - silt KW - inverse problem KW - Ringold Formation KW - Miocene KW - models KW - water table KW - Tertiary KW - Neogene KW - Pliocene KW - Pleistocene KW - inverse models KW - field studies KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51755317?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=A+combined+parameter+scaling+and+inverse+technique+to+upscale+the+unsaturated+hydraulic+parameters+for+heterogeneous+soils&rft.au=Zhang%2C+Z+Fred%3BWard%2C+Andy+L%3BGee%2C+Glendon+W&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2004-08-01&rft.volume=40&rft.issue=8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2003WR002925 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 62 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Benton County Washington; Cenozoic; clastic sediments; Columbia River Basalt Group; combined parameter scaling; experimental studies; field studies; gravel; ground water; Hanford Formation; Hanford Site; heterogeneity; hydraulics; inverse models; inverse problem; isotopes; laboratory studies; Lu Site; Miocene; models; moisture; Neogene; Pleistocene; Pliocene; pollutants; pollution; Quaternary; radioactive isotopes; Richland Washington; Ringold Formation; scale factor; sediments; silt; soil profiles; soils; solute transport; Tertiary; United States; unsaturated zone; Washington; waste disposal sites; water table DO - http://dx.doi.org/10.1029/2003WR002925 ER - TY - JOUR T1 - Reduction of TcO (sub 4) (super -) by sediment-associated biogenic Fe(II) AN - 51733501; 2005-028936 AB - The potential for reduction of (super 99) TcO (sub 4) (super -) (sub (aq)) to poorly soluble (super 99) TcO (sub 2) . nH (sub 2) O (sub (s)) by biogenic sediment-associated Fe(II) was investigated with three Fe(III)-oxide containing subsurface materials and the dissimilatory metal-reducing subsurface bacterium Shewanella putrefaciens CN32. Two of the subsurface materials from the U.S. Department of Energy"s Hanford and Oak Ridge sites contained significant amounts of Mn(III,IV) oxides and net bioreduction of Fe(III) to Fe(II) was not observed until essentially all of the hydroxylamine HCl-extractable Mn was reduced. In anoxic, unreduced sediment or where Mn oxide bioreduction was incomplete, exogenous biogenic TcO (sub 2) . nH (sub 2) O (sub (s)) was slowly oxidized over a period of weeks. Subsurface materials that were bioreduced to varying degrees and then pasteurized to eliminate biological activity, reduced TcO (sub 4) (super -) (sub (aq)) at rates that generally increased with increasing concentrations of 0.5 N HCl-extractable Fe(II). Two of the sediments showed a common relationship between extractable Fe(II) concentration (in mM) and the first-order reduction rate (in h (super -1) ), whereas the third demonstrated a markedly different trend. A combination of chemical extractions and (super 57) Fe Mossbauer spectroscopy were used to characterize the Fe(III) and Fe(II) phases. There was little evidence of the formation of secondary Fe(II) biominerals as a result of bioreduction, suggesting that the reactive forms of Fe(II) were predominantly surface complexes of different forms. The reduction rates of Tc(VII)O (sub 4) (super -) were slowest in the sediment that contained plentiful layer silicates (illite, vermiculite, and smectite), suggesting that Fe(II) sorption complexes on these phases were least reactive toward pertechnetate. These results suggest that the in situ microbial reduction of sediment-associated Fe(III), either naturally or via redox manipulation, may be effective at immobilizing TcO (sub 4) (super -) (sub (aq)) associated with groundwater contaminant plumes. JF - Geochimica et Cosmochimica Acta AU - Fredrickson, James K AU - Zachara, John M AU - Kennedy, David W AU - Kukkadapu, Ravi K AU - McKinley, James P AU - Heald, Steve M AU - Liu, Chongxuan AU - Plymale, Andrew E AU - Warren, Lesley A Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 3171 EP - 3187 PB - Pergamon, Oxford VL - 68 IS - 15 SN - 0016-7037, 0016-7037 KW - United States KW - sorption KW - imagery KW - iron oxides KW - isotopes KW - complexing KW - Shewanella putrefaciens KW - Shewanella KW - iron KW - remediation KW - ground water KW - Cenozoic KW - radioactive isotopes KW - chemical reactions KW - phase equilibria KW - Tennessee KW - sediments KW - oxides KW - spectra KW - reduction KW - water pollution KW - geochemistry KW - color imagery KW - Mossbauer spectra KW - Oak Ridge National Laboratory KW - technetium KW - experimental studies KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - Tc-99 KW - Ringold Formation KW - ferrous iron KW - saprolite KW - Tertiary KW - biogenic processes KW - X-ray data KW - Neogene KW - metals KW - bacteria KW - Pliocene KW - SEM data KW - microorganisms KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733501?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reduction+of+TcO+%28sub+4%29+%28super+-%29+by+sediment-associated+biogenic+Fe%28II%29&rft.au=Fredrickson%2C+James+K%3BZachara%2C+John+M%3BKennedy%2C+David+W%3BKukkadapu%2C+Ravi+K%3BMcKinley%2C+James+P%3BHeald%2C+Steve+M%3BLiu%2C+Chongxuan%3BPlymale%2C+Andrew+E%3BWarren%2C+Lesley+A&rft.aulast=Fredrickson&rft.aufirst=James&rft.date=2004-08-01&rft.volume=68&rft.issue=15&rft.spage=3171&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.10.024 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union fall meeting , symposium on Microbial geochemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 52 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; Cenozoic; chemical reactions; color imagery; complexing; experimental studies; ferrous iron; geochemistry; ground water; Hanford Site; imagery; iron; iron oxides; isotopes; metals; microorganisms; Mossbauer spectra; Neogene; Oak Ridge National Laboratory; oxides; phase equilibria; Pliocene; pollutants; pollution; radioactive isotopes; reduction; remediation; Ringold Formation; saprolite; sediments; SEM data; Shewanella; Shewanella putrefaciens; sorption; spectra; Tc-99; technetium; Tennessee; Tertiary; United States; Washington; water pollution; X-ray data DO - http://dx.doi.org/10.1016/j.gca.2003.10.024 ER - TY - JOUR T1 - Microbial hydrocarbon gases in the Witwatersrand Basin, South Africa; implications for the deep biosphere AN - 51728148; 2005-028941 AB - In this study, compositions and delta (super 13) C and delta (super 2) H isotopic values of hydrocarbon gases from 5 mines in the Witwatersrand basin, South Africa, support the widespread occurrence of microbially produced methane in millions of years-old fissure waters. The presence of microbial methane is, to a large extent, controlled by the geologic formations in which the gases are found. Samples from the Witwatersand Supergroup have the largest microbial component based on delta (super 13) C and delta (super 2) H signatures and CH (sub 4) /C (sub 2) (super +) values. Based on mixing between a microbial CH (sub 4) component and a more (super 13) C-enriched and (super 2) H-depleted C (sub 2) (super +) -rich end member, conservative estimates of the % contribution of microbial CH (sub 4) to the gas samples range from >90% microbial CH (sub 4) at Beatrix, Masimong, and Merriespruit, to between 5 and 80% microbial CH (sub 4) at Evander, and <18% microbial CH (sub 4) at Kloof. The Witwatersrand basin's history of thermal alteration of organic-rich ancient sedimentary units suggests a thermogenic origin for this (super 13) C-enriched end member. Alternatively, the potential for an abiogenic origin similar to hydrocarbon gases produced by water-rock interaction at other Precambrian Shield mines is discussed. Microbial methane is predominantly found in paleo-meteoric fissure waters with delta (super 18) O and delta (super 2) H values that fall on the meteoric waterline, and have temperatures between 30 to 40 degrees C. In contrast, fissure waters with a larger component of nonmicrobial hydrocarbon gases show a trend towards more enriched delta (super 18) O and delta (super 2) H values that fall well above the meteoric waterline, and temperatures of 45 to 60 degrees C. The enrichment in (super 18) O and (super 2) H in these samples, and their high salinity, are similar to the isotopic and compositional characteristics of saline groundwaters and brines produced by water-rock interaction at Precambrian Shield sites elsewhere. The reported 100 Ma ages of fissure waters from the Witwatersrand and Ventersdorp formations suggest that these microbial hydrocarbon gases are the product of in situ methanogenic communities in the deep subsurface of the Witswaterand basin. Small subunit ribosomal RNA genes were amplified using archaeal-specific primer sets from DNA extracts derived from several of these waters. Fissure waters with a high proportion of microbial methane also contained sequences resembling those of known methanogens. JF - Geochimica et Cosmochimica Acta AU - Ward, J A AU - Slater, G F AU - Moser, D P AU - Lin, L H AU - Lacrampe-Couloume, G AU - Bonin, A S AU - Davidson, M AU - Hall, J A AU - Mislowack, B AU - Bellamy, R E S AU - Onstott, T C AU - Sherwood Lollar, B AU - Warren, Lesley A Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 3239 EP - 3250 PB - Pergamon, Oxford VL - 68 IS - 15 SN - 0016-7037, 0016-7037 KW - oxygen KW - Archaea KW - thermal alteration KW - isotopes KW - natural gas KW - enrichment KW - aliphatic hydrocarbons KW - petroleum KW - stable isotopes KW - mixing KW - carbon KW - South Africa KW - deuterium KW - geochemistry KW - Witwatersrand KW - mines KW - meteoric water KW - methane KW - Witwatersrand Supergroup KW - Precambrian KW - isotope ratios KW - C-13/C-12 KW - connate waters KW - O-18/O-16 KW - alkanes KW - depth KW - gases KW - Ventersdorp Supergroup KW - organic compounds KW - biogenic processes KW - RNA KW - hydrogen KW - biosphere KW - Southern Africa KW - hydrocarbons KW - DNA KW - coalbed methane KW - Africa KW - microorganisms KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51728148?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Microbial+hydrocarbon+gases+in+the+Witwatersrand+Basin%2C+South+Africa%3B+implications+for+the+deep+biosphere&rft.au=Ward%2C+J+A%3BSlater%2C+G+F%3BMoser%2C+D+P%3BLin%2C+L+H%3BLacrampe-Couloume%2C+G%3BBonin%2C+A+S%3BDavidson%2C+M%3BHall%2C+J+A%3BMislowack%2C+B%3BBellamy%2C+R+E+S%3BOnstott%2C+T+C%3BSherwood+Lollar%2C+B%3BWarren%2C+Lesley+A&rft.aulast=Ward&rft.aufirst=J&rft.date=2004-08-01&rft.volume=68&rft.issue=15&rft.spage=3239&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.02.020 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union fall meeting , symposium on Microbial geochemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 80 N1 - Document feature - illus. incl. sects., 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Africa; aliphatic hydrocarbons; alkanes; Archaea; biogenic processes; biosphere; C-13/C-12; carbon; coalbed methane; connate waters; depth; deuterium; DNA; enrichment; gases; geochemistry; hydrocarbons; hydrogen; isotope ratios; isotopes; meteoric water; methane; microorganisms; mines; mixing; natural gas; O-18/O-16; organic compounds; oxygen; petroleum; Precambrian; RNA; South Africa; Southern Africa; stable isotopes; thermal alteration; Ventersdorp Supergroup; Witwatersrand; Witwatersrand Supergroup DO - http://dx.doi.org/10.1016/j.gca.2004.02.020 ER - TY - JOUR T1 - Minimum temperatures, diurnal temperature ranges, and temperature inversions in limestone sinkholes of different sizes and shapes AN - 51622690; 2006-020043 JF - Journal of Applied Meteorology AU - Whiteman, C David AU - Haiden, T AU - Pospichal, Bernhard AU - Eisenbach, Stefan AU - Steinacker, Reinhold Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 1224 EP - 1236 PB - American Meteorological Society, Boston, MA VL - 43 IS - 8 SN - 0894-8763, 0894-8763 KW - limestone KW - snow cover KW - Alps KW - Lunz Austria KW - Europe KW - temperature KW - sedimentary rocks KW - Limestone Alps KW - Central Europe KW - snow KW - diurnal variations KW - meteorology KW - dolines KW - weather observations KW - landform evolution KW - Austria KW - Hetzkogel Plateau KW - sinkholes KW - Northern Limestone Alps KW - Gstettner-Alm Austria KW - geomorphology KW - Gruenloch Basin KW - carbonate rocks KW - solution features KW - Eastern Alps KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51622690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology&rft.atitle=Minimum+temperatures%2C+diurnal+temperature+ranges%2C+and+temperature+inversions+in+limestone+sinkholes+of+different+sizes+and+shapes&rft.au=Whiteman%2C+C+David%3BHaiden%2C+T%3BPospichal%2C+Bernhard%3BEisenbach%2C+Stefan%3BSteinacker%2C+Reinhold&rft.aulast=Whiteman&rft.aufirst=C&rft.date=2004-08-01&rft.volume=43&rft.issue=8&rft.spage=1224&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ L2 - http://journals.ametsoc.org/loi/apme LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 32 N1 - PubXState - MA N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-15 N1 - CODEN - JAMOAX N1 - SubjectsTermNotLitGenreText - Alps; Austria; carbonate rocks; Central Europe; diurnal variations; dolines; Eastern Alps; Europe; geomorphology; Gruenloch Basin; Gstettner-Alm Austria; Hetzkogel Plateau; landform evolution; limestone; Limestone Alps; Lunz Austria; meteorology; Northern Limestone Alps; sedimentary rocks; sinkholes; snow; snow cover; solution features; temperature; weather observations ER - TY - JOUR T1 - Inversion breakup in small Rocky Mountain and alpine basins AN - 51622654; 2006-020042 JF - Journal of Applied Meteorology AU - Whiteman, C David AU - Pospichal, Bernhard AU - Eisenbach, Stefan AU - Weihs, Philipp AU - Clements, Craig B AU - Steinacker, Reinhold AU - Mursch-Radlgruber, Erich AU - Dorninger, Manfred Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 1069 EP - 1082 PB - American Meteorological Society, Boston, MA VL - 43 IS - 8 SN - 0894-8763, 0894-8763 KW - United States KW - limestone KW - snow cover KW - Alps KW - Lunz Austria KW - Europe KW - temperature KW - Cache County Utah KW - Rich County Utah KW - sedimentary rocks KW - Central Europe KW - snow KW - diurnal variations KW - meteorology KW - climate KW - North America KW - weather observations KW - landform evolution KW - U. S. Rocky Mountains KW - Austria KW - sinkholes KW - low temperature KW - Utah KW - geomorphology KW - Colorado KW - carbonate rocks KW - solution features KW - winds KW - Rocky Mountains KW - Eastern Alps KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51622654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology&rft.atitle=Inversion+breakup+in+small+Rocky+Mountain+and+alpine+basins&rft.au=Whiteman%2C+C+David%3BPospichal%2C+Bernhard%3BEisenbach%2C+Stefan%3BWeihs%2C+Philipp%3BClements%2C+Craig+B%3BSteinacker%2C+Reinhold%3BMursch-Radlgruber%2C+Erich%3BDorninger%2C+Manfred&rft.aulast=Whiteman&rft.aufirst=C&rft.date=2004-08-01&rft.volume=43&rft.issue=8&rft.spage=1069&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ L2 - http://journals.ametsoc.org/loi/apme LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 46 N1 - PubXState - MA N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-15 N1 - CODEN - JAMOAX N1 - SubjectsTermNotLitGenreText - Alps; Austria; Cache County Utah; carbonate rocks; Central Europe; climate; Colorado; diurnal variations; Eastern Alps; Europe; geomorphology; landform evolution; limestone; low temperature; Lunz Austria; meteorology; North America; Rich County Utah; Rocky Mountains; sedimentary rocks; sinkholes; snow; snow cover; solution features; temperature; U. S. Rocky Mountains; United States; Utah; weather observations; winds ER - TY - JOUR T1 - Multiphase reactive transport modeling of seasonal infiltration events and stable isotope fractionation in unsaturated zone pore water and vapor at the Hanford Site AN - 51133135; 2005-061928 AB - Numerical simulations of transport and isotope fractionation provide a method to quantitatively interpret vadose zone pore water stable isotope depth profiles based on soil properties, climatic conditions, and infiltration. We incorporate the temperature-dependent equilibration of stable isotopic species between water and water vapor, and their differing diffusive transport properties into the thermodynamic database of the reactive transport code TOUGHREACT. These simulations are used to illustrate the evolution of stable isotope profiles in semiarid regions where recharge during wet seasons disturbs the drying profile traditionally associated with vadose zone pore waters. Alternating wet and dry seasons lead to annual fluctuations in moisture content, capillary pressure, and stable isotope compositions in the vadose zone. Periodic infiltration models capture the effects of seasonal increases in precipitation and predict stable isotope profiles that are distinct from those observed under drying (zero infiltration) conditions. After infiltration, evaporation causes a shift to higher delta (super 18) O and delta D values, which are preserved in the deeper pore waters. The magnitude of the isotopic composition shift preserved in deep vadose zone pore waters varies inversely with the rate of infiltration. JF - Vadose Zone Journal AU - Singleton, Michael J AU - Sonnenthal, Eric L AU - Conrad, Mark E AU - DePaolo, Donald J AU - Gee, Glendon W A2 - Finsterle, Stefan A2 - Oldenburg, Curtis M. Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 775 EP - 785 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 3 KW - United States KW - oxygen KW - isotopes KW - data processing KW - unsaturated zone KW - water vapor KW - atmospheric precipitation KW - stable isotopes KW - ground water KW - chemical reactions KW - transport KW - digital simulation KW - TOUGHREACT KW - applications KW - geochemistry KW - water KW - meteoric water KW - Washington KW - numerical models KW - isotope ratios KW - Hanford Site KW - O-18/O-16 KW - hydrochemistry KW - computer programs KW - recharge KW - D/H KW - infiltration KW - hydrogen KW - multiphase flow KW - seasonal variations KW - pore water KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51133135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Multiphase+reactive+transport+modeling+of+seasonal+infiltration+events+and+stable+isotope+fractionation+in+unsaturated+zone+pore+water+and+vapor+at+the+Hanford+Site&rft.au=Singleton%2C+Michael+J%3BSonnenthal%2C+Eric+L%3BConrad%2C+Mark+E%3BDePaolo%2C+Donald+J%3BGee%2C+Glendon+W&rft.aulast=Singleton&rft.aufirst=Michael&rft.date=2004-08-01&rft.volume=3&rft.issue=3&rft.spage=775&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Conference title - TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 38 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on January 6, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; atmospheric precipitation; chemical reactions; computer programs; D/H; data processing; digital simulation; geochemistry; ground water; Hanford Site; hydrochemistry; hydrogen; infiltration; isotope ratios; isotopes; meteoric water; multiphase flow; numerical models; O-18/O-16; oxygen; pore water; recharge; seasonal variations; stable isotopes; TOUGHREACT; transport; United States; unsaturated zone; Washington; water; water vapor ER - TY - JOUR T1 - Migration of saline solutions in variably saturated porous media AN - 50518488; 2009-020719 AB - Migration of concentrated NaNO (sub 3) solutions in homogeneous packs of pre-wetted silica sands was investigated using a light transmission system. Solutions of 5 molal NaNO (sub 3) were found to migrate downward 24-62% faster than pure water, in an unstable, fingered manner. This behavior was attributed primarily to a surface tension induced, non-zero apparent contact angle between the imbibing and the resident fluids. For saline solutions of similar surface tension to that of pure water (achieved by the addition of 2% methanol), the migration rates and plume shapes were comparable to that of water, demonstrating that density was not the primary source of the observed differences in migration patterns. At depths where resident saturation increased above residual, the migration process appeared to occur via film flow with slight changes in saturation (<4%), rather than in a series of abrupt jumps, as observed at shallower depths. A method for contact angle scaling was used to illustrate the effects of non-zero contact angles on capillary pressure-saturation curves. JF - Journal of Contaminant Hydrology AU - Weisbrod, Noam AU - Niemet, Michael R AU - Rockhold, Mark L AU - McGinnis, Thomas AU - Selker, John S Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 109 EP - 133 PB - Elsevier, Amsterdam VL - 72 IS - 1-4 SN - 0169-7722, 0169-7722 KW - imagery KW - contaminant plumes KW - moisture KW - data KW - salt water KW - contact angle KW - ground water KW - sedimentary rocks KW - hydrodynamics KW - interpretation KW - film flow KW - concentration KW - sodium chloride KW - experimental studies KW - chemically precipitated rocks KW - pollution KW - nitrates KW - surface tension KW - porous materials KW - capillarity KW - migration of elements KW - evaporites KW - aquifers KW - models KW - saturation KW - dissolved materials KW - infiltration KW - tension KW - salt KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50518488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Migration+of+saline+solutions+in+variably+saturated+porous+media&rft.au=Weisbrod%2C+Noam%3BNiemet%2C+Michael+R%3BRockhold%2C+Mark+L%3BMcGinnis%2C+Thomas%3BSelker%2C+John+S&rft.aulast=Weisbrod&rft.aufirst=Noam&rft.date=2004-08-01&rft.volume=72&rft.issue=1-4&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2003.10.013 L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2009-01-01 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; capillarity; chemically precipitated rocks; concentration; contact angle; contaminant plumes; data; dissolved materials; evaporites; experimental studies; film flow; ground water; hydrodynamics; imagery; infiltration; interpretation; migration of elements; models; moisture; nitrates; pollution; porous materials; salt; salt water; saturation; sedimentary rocks; sodium chloride; surface tension; tension DO - http://dx.doi.org/10.1016/j.jconhyd.2003.10.013 ER - TY - JOUR T1 - Pre-eruptive pressures and temperatures of Columbia River basalt group (USA) and tectonic implications AN - 50479768; 2009-028661 JF - International Geological Congress, Abstracts = Congres Geologique International, Resumes AU - Caprarelli, Graziella AU - Reidel, Stephen P AU - Anonymous Y1 - 2004/08// PY - 2004 DA - August 2004 SP - 797 EP - 798 PB - [International Geological Congress], [location varies] VL - 32, Part 1 KW - United States KW - flood basalts KW - volcanic rocks KW - igneous rocks KW - Pomona Basalt KW - rifting KW - temperature KW - electron probe data KW - Cenozoic KW - Oregon KW - mineral composition KW - volcanism KW - basalts KW - X-ray fluorescence spectra KW - tectonics KW - spectra KW - trace elements KW - chemical composition KW - geochemistry KW - Washington KW - pressure KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Saddle Mountains Basalt KW - Tertiary KW - plate tectonics KW - Neogene KW - magmas KW - eruptions KW - large igneous provinces KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50479768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.atitle=Pre-eruptive+pressures+and+temperatures+of+Columbia+River+basalt+group+%28USA%29+and+tectonic+implications&rft.au=Caprarelli%2C+Graziella%3BReidel%2C+Stephen+P%3BAnonymous&rft.aulast=Caprarelli&rft.aufirst=Graziella&rft.date=2004-08-01&rft.volume=32%2C+Part+1&rft.issue=&rft.spage=797&rft.isbn=&rft.btitle=&rft.title=International+Geological+Congress%2C+Abstracts+%3D+Congres+Geologique+International%2C+Resumes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Italia 2004; 32nd international geological congress N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - IGABBY N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chemical composition; Columbia River Basalt Group; electron probe data; eruptions; flood basalts; geochemistry; Grande Ronde Basalt; igneous rocks; large igneous provinces; magmas; mineral composition; Miocene; Neogene; Oregon; plate tectonics; Pomona Basalt; pressure; rifting; Saddle Mountains Basalt; spectra; tectonics; temperature; Tertiary; trace elements; United States; volcanic rocks; volcanism; Washington; X-ray fluorescence spectra ER - TY - JOUR T1 - Should software hold data hostage? AN - 18061709; 5993747 AB - Software tools have become an indispensable part of modern biology, but issues surrounding propriety file formats and closed software architectures threaten to stunt the growth of this rapidly expanding area of research. In an effort to ensure continuous software upgrades to provide a continuous income stream, some software companies have resorted to holding the user's data hostage by locking them into proprietary file and data formats. Although this might make sense from a business perspective, it violates fundamental principles of data ownership and control. Such tactics should not be tolerated by the scientific community. The future of data-intensive biology depends on ensuring open data standards and freely exchangeable file formats. JF - Nature Biotechnology AU - Wiley, H S AU - Michaels, G S AD - Part of the Biomolecular Systems Initiative, Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA, steven.wiley@pnl.gov Y1 - 2004/08// PY - 2004 DA - Aug 2004 SP - 1037 EP - 1038 VL - 22 IS - 8 SN - 1087-0156, 1087-0156 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Computer programs KW - software KW - Reviews KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18061709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Biotechnology&rft.atitle=Should+software+hold+data+hostage%3F&rft.au=Wiley%2C+H+S%3BMichaels%2C+G+S&rft.aulast=Wiley&rft.aufirst=H&rft.date=2004-08-01&rft.volume=22&rft.issue=8&rft.spage=1037&rft.isbn=&rft.btitle=&rft.title=Nature+Biotechnology&rft.issn=10870156&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Computer programs; software; Reviews ER - TY - JOUR T1 - Transport-controlled kinetics of dissolution and precipitation in the sediments under alkaline and saline conditions AN - 51733551; 2005-028254 AB - Over 1.6 million liters of radioactive, high-temperature, Al-rich, alkaline and saline high-level waste (HLW) fluids were accidentally discharged from tank leaks onto the sediments at the Hanford Site, Washington. In order to better understand processes that might occur during the migration of HLW through sediments and to estimate their extents, we studied the effects of Al-rich, alkaline and saline solutions on soil mineral dissolution and precipitation during reactive transport. Metal- and glass-free systems were used to conduct miscible-displacement experiments at 50 degrees C under CO (sub 2) and O (sub 2) free conditions. Results showed significant release of Si, K, Al, Fe, Ca, Mg, and Ba into the aqueous phase. The transport-controlled release of these elements was time dependent as evidenced by its extent varying with the fluid residence time. Silica initial dissolution rates (6.08X10 (super -11) and 5.38X10 (super -13) mol m (super -2) s (super -1) ) increased with base concentration, decreased with Al concentration, and decreased with fluid residence time. Aluminum precipitation rates varied in the range from 0.44 to 1.07X10 (super -6) mol s (super -1) and were faster in these column experiments than in previous batch studies. The initial rate constant of Al precipitation reaction was 0.07 h (super -1) (half-life of 9.9 h at about 3 PV); it increased up to 0.137 h (super -1) (half-life of 5.1 h at about 20 PV). The precipitates identified with SEM and suggested from the modeling results were mainly NO (sub 3) -cancrinite. SEM analyses also indicated the formation of sodalite when Al was not present in the leaching solution. In addition, results from modeling suggested the precipitation of brucite, goethite and gibbsite; the latter may precipitate in the presence of high Al concentrations. Aqueous and solid phase transformations caused by base-induced dissolution and subsequent secondary phases precipitation should be important determinants of the fate of contaminants and radionuclides in the vadose zone under alkaline and saline conditions. JF - Geochimica et Cosmochimica Acta AU - Qafoku, Nikolla P AU - Ainsworth, Calvin C AU - Szecsody, James E AU - Qafoku, Odeta S Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 2981 EP - 2995 PB - Pergamon, Oxford VL - 68 IS - 14 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - goethite KW - unsaturated zone KW - phase transitions KW - solution KW - radioactive waste KW - laboratory studies KW - brucite KW - transport KW - silica KW - aluminum KW - sediments KW - sodalite group KW - oxides KW - framework silicates KW - gibbsite KW - kinetics KW - geochemistry KW - saline composition KW - soils KW - liquid phase KW - leaking underground storage tanks KW - high-level waste KW - experimental studies KW - Washington KW - pollution KW - Hanford Site KW - alkalic composition KW - solid phase KW - models KW - precipitation KW - metals KW - residence time KW - sodalite KW - waste disposal KW - SEM data KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51733551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Transport-controlled+kinetics+of+dissolution+and+precipitation+in+the+sediments+under+alkaline+and+saline+conditions&rft.au=Qafoku%2C+Nikolla+P%3BAinsworth%2C+Calvin+C%3BSzecsody%2C+James+E%3BQafoku%2C+Odeta+S&rft.aulast=Qafoku&rft.aufirst=Nikolla&rft.date=2004-07-01&rft.volume=68&rft.issue=14&rft.spage=2981&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.12.017 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkalic composition; aluminum; brucite; experimental studies; framework silicates; geochemistry; gibbsite; goethite; Hanford Site; high-level waste; kinetics; laboratory studies; leaking underground storage tanks; liquid phase; metals; models; oxides; phase transitions; pollution; precipitation; radioactive waste; residence time; saline composition; sediments; SEM data; silica; silicates; sodalite; sodalite group; soils; solid phase; solution; transport; United States; unsaturated zone; Washington; waste disposal DO - http://dx.doi.org/10.1016/j.gca.2003.12.017 ER - TY - JOUR T1 - Oxygen-exchange pathways in aluminum polyoxocations AN - 51732997; 2005-028256 AB - Using molecular dynamics simulations and electronic structure methods, we postulate a mechanism to explain the complicated reactivity trends that are observed for oxygen isotope exchange reactions between sites in aluminum polyoxocations of the epsilon -Keggin type and bulk solution. Experimentally, the molecules have four nonequivalent oxygens that differ considerably in reactivity both within a molecule, and between molecules in the series: Al (sub 13) , GaAl (sub 12) , and GeAl (sub 12) [MO (sub 4) Al (sub 12) (OH) (sub 24) (H (sub 2) O) (sub 12) (super n+) (aq); with M = Al(III) for Al (sub 13) , n = 7; M = Ga(III) for GaAl (sub 12) , n = 7; M = Ge(IV) for GeAl (sub 12) , n = 8]. We find that a partly dissociated, metastable intermediate molecule of expanded volume is necessary for exchange of both sets of mu (sub 2) -OH and that the steady-state concentration of this intermediate reflects the bond strengths between the central metal and the mu (sub 4) -O. Thus the central metal exerts extraordinary control over reactions at hydroxyl bridges, although these are three bonds away.This mechanism not only explains the reactivity trends for oxygen isotope exchange in mu (sub 2) -OH and eta -OH (sub 2) sites in the epsilon -Keggin aluminum molecules, but also explains the observation that the reactivities of minerals tend to reflect the presence of highly coordinated oxygens, such as the mu (sub 4) -O in boehmite, alpha -, and gamma -Al (sub 2) O (sub 3) and their Fe(III) analogs. The partial dissociation of these highly coordinated oxygens, coupled with simultaneous activation and displacement of neighboring metal centers, may be a fundamental process by which metals atoms undergo ligand exchanges at mineral surfaces. JF - Geochimica et Cosmochimica Acta AU - Rustad, James R AU - Loring, John S AU - Casey, William H Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 3011 EP - 3017 PB - Pergamon, Oxford VL - 68 IS - 14 SN - 0016-7037, 0016-7037 KW - boehmite KW - dissociation KW - oxygen KW - isotopes KW - coordination KW - bonding KW - hydroxyl ion KW - reactivity KW - ligands KW - aluminum oxides KW - metals KW - aluminum KW - oxides KW - cations KW - molecular dynamics KW - crystal chemistry KW - geochemistry KW - electrons KW - 02D:Isotope geochemistry KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51732997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Oxygen-exchange+pathways+in+aluminum+polyoxocations&rft.au=Rustad%2C+James+R%3BLoring%2C+John+S%3BCasey%2C+William+H&rft.aulast=Rustad&rft.aufirst=James&rft.date=2004-07-01&rft.volume=68&rft.issue=14&rft.spage=3011&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.12.021 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 37 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aluminum; aluminum oxides; boehmite; bonding; cations; coordination; crystal chemistry; dissociation; electrons; geochemistry; hydroxyl ion; isotopes; ligands; metals; molecular dynamics; oxides; oxygen; reactivity DO - http://dx.doi.org/10.1016/j.gca.2003.12.021 ER - TY - JOUR T1 - Biotransformation of two-line silica-ferrihydrite by a dissimilatory Fe(III)-reducing bacterium; formation of carbonate green rust in the presence of phosphate AN - 51728584; 2005-031967 AB - The reductive biotransformation of two Si-ferrihydrite coprecipitates (1 and 5 mole % Si) by Shewanella putrefaciens, strain CN32, was investigated in 1,4-piperazinediethanesulfonic acid-buffered media (pH approximately 7) with lactate as the electron donor. Anthraquinone-2,6-disulfonate, an electron shuttle, was present in the media. Experiments were performed without and with PO (sub 4) (super 3-) (P) (1 to 20 mmol/L) in media containing 50 mmol/L Fe. Our objectives were to define the combined effects of SiO (sub 4) (super 4-) (Si) and P on the bioreducibility and biomineralization of ferrihydrites under anoxic conditions. Iron reduction was measured as a function of time, solids were characterized by powder X-ray diffraction and Mossbauer spectroscopy, and aqueous solutions were analyzed for Si, P, Cl (super -) and inorganic carbon. Both of the ferrihydrites were rapidly reduced regardless of the Si and P content. Si concentration had no effect on the reduction rate or mineralization products. Magnetite was formed in the absence of P whereas carbonate green rust GR(CO (sub 3) (super 2-) ) ([Fe (sub (6-x)) (super II) Fe (super III) (sub x) (OH) (sub 12) ] (super x+) (CO (sub 3) (super 2-) ) (sub 0.5x) . yH (sub 2) O) and vivianite [Fe (sub 3) (PO (sub 4) ) (sub 2) . 8H (sub 2) O], were formed when P was present. GR(CO (sub 3) (super 2-) ) dominated as a mineral product in samples with <4 mmol/L P. The Fe(II)/Fe(III) ratio of GR(CO (sub 3) (super 2-) ) varied with P concentration; the ratio was 2 in 1 mmol/L P and approached 1 with 4- and 10 mmol/L P. Green rust appeared to form by solid-state transformation of ferrihydrite. Media P and Si concentration dictated the mechanism of transformation. In the 1 mole % Si coprecipitate with 1 mmol/L P, an intermediate Fe(II)/Fe(III) phase with structural Fe(II) slowly transformed to GR with time. In contrast, when ferrihydrite contained more Si (5 mole %) and/or contained higher P (4 mmol/L), sorbed Fe(II) and residual ferrihydrite together transformed to GR. Despite similar chemistries, P was shown to have a profound effect on extent of ferrihydrite reduction and biotransformations while that of Si was minimal. JF - Geochimica et Cosmochimica Acta AU - Kukkadapu, Ravi K AU - Zachara, John M AU - Fredrickson, James K AU - Kennedy, David W Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 2799 EP - 2814 PB - Pergamon, Oxford VL - 68 IS - 13 SN - 0016-7037, 0016-7037 KW - X-ray diffraction data KW - Shewanella putrefaciens KW - silicon KW - Shewanella KW - iron KW - laboratory studies KW - ferric iron KW - green rust KW - silica KW - oxides KW - spectra KW - reduction KW - synthesis KW - geochemistry KW - Mossbauer spectra KW - biodegradation KW - experimental studies KW - phosphorus KW - ferrihydrite KW - iron hydroxides KW - hydroxides KW - phosphate ion KW - biogenic processes KW - precipitation KW - metals KW - bacteria KW - transformations KW - SEM data KW - magnetite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51728584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Biotransformation+of+two-line+silica-ferrihydrite+by+a+dissimilatory+Fe%28III%29-reducing+bacterium%3B+formation+of+carbonate+green+rust+in+the+presence+of+phosphate&rft.au=Kukkadapu%2C+Ravi+K%3BZachara%2C+John+M%3BFredrickson%2C+James+K%3BKennedy%2C+David+W&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2004-07-01&rft.volume=68&rft.issue=13&rft.spage=2799&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.12.024 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 71 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biodegradation; biogenic processes; experimental studies; ferric iron; ferrihydrite; geochemistry; green rust; hydroxides; iron; iron hydroxides; laboratory studies; magnetite; metals; Mossbauer spectra; oxides; phosphate ion; phosphorus; precipitation; reduction; SEM data; Shewanella; Shewanella putrefaciens; silica; silicon; spectra; synthesis; transformations; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.gca.2003.12.024 ER - TY - JOUR T1 - Technetium reduction in sediments of a shallow aquifer exhibiting dissimilatory iron reduction potential AN - 51528732; 2006-086511 JF - FEMS Microbiology. Ecology AU - Wildung, R E AU - Li, S W AU - Murray, C J AU - Krupka, K M AU - Xie, Y AU - Hess, N J AU - Roden, E E A2 - Albrechtsen, Hans-Jorgen A2 - Aamand, Jens Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 151 EP - 162 PB - Elsevier Science on behalf of the Federation of European Microbiological Societies, Amsterdam VL - 49 IS - 1 SN - 0168-6496, 0168-6496 KW - United States KW - remediation KW - Cenozoic KW - sediments KW - reduction KW - thermodynamic properties KW - Accomack County Virginia KW - Atlantic Coastal Plain KW - technetium KW - sand KW - high-level waste KW - Virginia KW - Quaternary KW - clastic sediments KW - oxidation KW - pollution KW - solubility KW - bioremediation KW - aquifers KW - metals KW - Pleistocene KW - shallow aquifers KW - Wachapreague Formation KW - pertechnetate ion KW - hydraulic conductivity KW - Wachapreague Inlet KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51528732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+Microbiology.+Ecology&rft.atitle=Technetium+reduction+in+sediments+of+a+shallow+aquifer+exhibiting+dissimilatory+iron+reduction+potential&rft.au=Wildung%2C+R+E%3BLi%2C+S+W%3BMurray%2C+C+J%3BKrupka%2C+K+M%3BXie%2C+Y%3BHess%2C+N+J%3BRoden%2C+E+E&rft.aulast=Wildung&rft.aufirst=R&rft.date=2004-07-01&rft.volume=49&rft.issue=1&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology.+Ecology&rft.issn=01686496&rft_id=info:doi/10.1016%2Fj.femsec.2003.08.016 L2 - http://www.sciencedirect.com/science/journal/01686496 LA - English DB - GeoRef N1 - Conference title - Fifth international symposium on Subsurface microbiology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Accomack County Virginia; aquifers; Atlantic Coastal Plain; bioremediation; Cenozoic; clastic sediments; high-level waste; hydraulic conductivity; metals; oxidation; pertechnetate ion; Pleistocene; pollution; Quaternary; reduction; remediation; sand; sediments; shallow aquifers; solubility; technetium; thermodynamic properties; United States; Virginia; Wachapreague Formation; Wachapreague Inlet DO - http://dx.doi.org/10.1016/j.femsec.2003.08.016 ER - TY - JOUR T1 - A constitutive model for air-NAPL-water flow in the vadose zone accounting for immobile, non-occluded (residual) NAPL in strongly water-wet porous media AN - 50514687; 2009-020689 AB - A hysteretic constitutive model describing relations among relative permeabilities, saturations, and pressures in fluid systems consisting of air, nonaqueous-phase liquid (NAPL), and water is modified to account for NAPL that is postulated to be immobile in small pores and pore wedges and as films or lenses on water surfaces. A direct outcome of the model is prediction of the NAPL saturation that remains in the vadose zone after long drainage periods (residual NAPL). Using the modified model, water and NAPL (free, entrapped by water, and residual) saturations can be predicted from the capillary pressures and the water and total-liquid saturation-path histories. Relations between relative permeabilities and saturations are modified to account for the residual NAPL by adjusting the limits of integration in the integral expression used for predicting the NAPL relative permeability. When all of the NAPL is either residual or entrapped (i.e., no free NAPL), then the NAPL relative permeability will be zero. We model residual NAPL using concepts similar to those used to model residual water. As an initial test of the constitutive model, we compare predictions to published measurements of residual NAPL. Furthermore, we present results using the modified constitutive theory for a scenario involving NAPL imbibition and drainage. JF - Journal of Contaminant Hydrology AU - Lenhard, R J AU - Oostrom, M AU - Dane, J H Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 261 EP - 282 PB - Elsevier, Amsterdam VL - 71 IS - 1-4 SN - 0169-7722, 0169-7722 KW - water quality KW - air-water interface KW - unsaturated zone KW - pollution KW - porous materials KW - preferential flow KW - ground water KW - aquifers KW - nonaqueous phase liquids KW - models KW - saturation KW - multiphase flow KW - theoretical models KW - mobility KW - pore water KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50514687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=A+constitutive+model+for+air-NAPL-water+flow+in+the+vadose+zone+accounting+for+immobile%2C+non-occluded+%28residual%29+NAPL+in+strongly+water-wet+porous+media&rft.au=Lenhard%2C+R+J%3BOostrom%2C+M%3BDane%2C+J+H&rft.aulast=Lenhard&rft.aufirst=R&rft.date=2004-07-01&rft.volume=71&rft.issue=1-4&rft.spage=261&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2003.10.014 L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2009-01-01 N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - air-water interface; aquifers; ground water; mobility; models; multiphase flow; nonaqueous phase liquids; permeability; pollution; pore water; porous materials; preferential flow; saturation; theoretical models; unsaturated zone; water quality DO - http://dx.doi.org/10.1016/j.jconhyd.2003.10.014 ER - TY - JOUR T1 - Stabilization of CO sub(2) in B2 world: insights on the roles of carbon capture and disposal, hydrogen, and transportation technologies AN - 20517329; 6088812 AB - We examine the potential role of several energy technologies, including carbon capture and dispose (CC and D), hydrogen and advanced transportation systems, on the cost of stabilizing CO sub(2) concentrations. While not currently deployed at scale, CC and D, hydrogen energy systems, and biotechnology have the potential to be major components of the global energy system by the middle of the 21st century. Other technologies, such as renewables, nuclear power and energy efficiency also play critical roles in addressing climate change. The development of advanced technologies in the absence of limitations on the concentration of carbon dioxide need not lead to CO sub(2) stabilization. JF - Energy Economics AU - Edmonds, J AU - Clarke, J AU - Dooley, J AU - Kim, SH AU - Smith, S J AD - Pacific Northwest National Laboratory, Joint Global Change Research Institute at the University of Maryland, 8400 Baltimore Avenue, Suite 201, College Park, MD 20740-2496, USA Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 517 EP - 537 VL - 26 IS - 4 SN - 0140-9883, 0140-9883 KW - Pollution Abstracts; Sustainability Science Abstracts KW - Energy efficiency KW - Transportation KW - Climatic changes KW - Economics KW - Hydrogen KW - Carbon dioxide KW - Greenhouse gases KW - Biotechnology KW - Technology KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20517329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Economics&rft.atitle=Stabilization+of+CO+sub%282%29+in+B2+world%3A+insights+on+the+roles+of+carbon+capture+and+disposal%2C+hydrogen%2C+and+transportation+technologies&rft.au=Edmonds%2C+J%3BClarke%2C+J%3BDooley%2C+J%3BKim%2C+SH%3BSmith%2C+S+J&rft.aulast=Edmonds&rft.aufirst=J&rft.date=2004-07-01&rft.volume=26&rft.issue=4&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Energy+Economics&rft.issn=01409883&rft_id=info:doi/10.1016%2Fj.eneco.2004.04.025 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Energy efficiency; Transportation; Economics; Climatic changes; Hydrogen; Greenhouse gases; Carbon dioxide; Biotechnology; Technology DO - http://dx.doi.org/10.1016/j.eneco.2004.04.025 ER - TY - JOUR T1 - Modeling greenhouse gas energy technology responses to climate change AN - 20432033; 5924301 AB - Models of the global energy system can help shed light on the competition and complementarities among technologies and energy systems both in the presence and absence of actions to affect the concentration of greenhouse gases. This paper explores the role of modeling in the analysis of technology deployment in addressing climate change. It examines the competition among technologies in a variety of markets, and explores conditions under which new markets, such as for hydrogen and carbon disposal, or modern commercial biomass, could emerge. Carbon capture and disposal technologies are shown to have the potential to play a central role in controlling the cost of stabilizing the concentration of greenhouse gases, the goal of the UN Framework Convention on Climate Change. JF - Energy (Oxford) AU - Edmonds, JA AU - Clarke, J AU - Dooley, J AU - Kim, SH AU - Smith, S J AD - Joint Global Change Research Institute, Pacific Northwest National Laboratory, 8400 Baltimore Avenue, College Park, MD 20740, USA, jae@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 1529 EP - 1536 PB - Pergamon Press Ltd VL - 29 IS - 9-10 SN - 0360-5442, 0360-5442 KW - Pollution Abstracts; Sustainability Science Abstracts KW - Climatic changes KW - Hydrogen KW - Greenhouse gases KW - Biomass KW - Technology KW - competition KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20432033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%28Oxford%29&rft.atitle=Modeling+greenhouse+gas+energy+technology+responses+to+climate+change&rft.au=Edmonds%2C+JA%3BClarke%2C+J%3BDooley%2C+J%3BKim%2C+SH%3BSmith%2C+S+J&rft.aulast=Edmonds&rft.aufirst=JA&rft.date=2004-07-01&rft.volume=29&rft.issue=9-10&rft.spage=1529&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&rft_id=info:doi/10.1016%2Fj.energy.2004.03.057 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-02-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Climatic changes; Hydrogen; Biomass; Greenhouse gases; competition; Technology DO - http://dx.doi.org/10.1016/j.energy.2004.03.057 ER - TY - JOUR T1 - Carbon management strategies for US electricity generation capacity: A vintage-based approach AN - 20430909; 5924307 AB - Utilities are under increasing pressure to reduce power plant CO sub(2) emissions. If the US and world follow through on their long-term commitment to dramatically reduce emissions, this pressure will become significant over the coming decades. It is in the face of these concerns that the future of US fossil-fired power plants is examined. There are over 1337 operational fossil- fired power generating units of at least 100 MW in capacity that began operating between the early 1940s and today in the continental US. Together these units provide some 453 GW of electric power. Rapidly retiring this still valuable capital stock or undertaking large-scale immediate redevelopment with advanced power cycles as a means of addressing their greenhouse gas emissions will not be a sensible option for all of these units. Considering a conservative 40-year operating life, there are over 667 existing fossil-fired power plants, representing a capacity of over 291 GW, that have at least a decade's worth of productive life remaining. Applying Battelle's specialized analysis tools, relationships between these 667 plants and their technology type, location, emissions, and vintage have been explored. Based on these factors and the proximity of these plants to geologic reservoirs with potential for sequestering large volumes of CO sub(2), the average costs for retrofitting these newer-vintage plants with capture technology and sequestering their CO sub(2) into such reservoirs are presented. A discussion of a set of planned US fossil-fired power projects within the context of a carbon-constrained world is also included. JF - Energy (Oxford) AU - Dahowski, R T AU - Dooley, J J AD - Energy Science and Technology Directorate, Battelle; Pacific Northwest National Laboratory, P.O. Box 999, K6-10, Richland, WA 99352, USA, bob.dahowski@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 1589 EP - 1598 PB - Pergamon Press Ltd VL - 29 IS - 9-10 SN - 0360-5442, 0360-5442 KW - Pollution Abstracts; Sustainability Science Abstracts KW - USA KW - Electric power generation KW - Emissions KW - Power plants KW - Geology KW - Carbon dioxide KW - Greenhouse gases KW - Reservoirs KW - Utilities KW - Technology KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20430909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%28Oxford%29&rft.atitle=Carbon+management+strategies+for+US+electricity+generation+capacity%3A+A+vintage-based+approach&rft.au=Dahowski%2C+R+T%3BDooley%2C+J+J&rft.aulast=Dahowski&rft.aufirst=R&rft.date=2004-07-01&rft.volume=29&rft.issue=9-10&rft.spage=1589&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&rft_id=info:doi/10.1016%2Fj.energy.2004.03.061 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-02-01 N1 - Last updated - 2015-03-27 N1 - SubjectsTermNotLitGenreText - Electric power generation; Power plants; Emissions; Geology; Greenhouse gases; Carbon dioxide; Reservoirs; Utilities; Technology; USA DO - http://dx.doi.org/10.1016/j.energy.2004.03.061 ER - TY - JOUR T1 - Geomicrobiology of High-Level Nuclear Waste-Contaminated Vadose Sediments at the Hanford Site, Washington State AN - 19770420; 5963414 AB - Sediments from a high-level nuclear waste plume were collected as part of investigations to evaluate the potential fate and migration of contaminants in the subsurface. The plume originated from a leak that occurred in 1962 from a waste tank consisting of high concentrations of alkali, nitrate, aluminate, Cr(VI), super(137)Cs, and super(99)Tc. Investigations were initiated to determine the distribution of viable microorganisms in the vadose sediment samples, probe the phylogeny of cultivated and uncultivated members, and evaluate the ability of the cultivated organisms to survive acute doses of ionizing radiation. The populations of viable aerobic heterotrophic bacteria were generally low, from below detection to [approx]10 super(4) CFU g super(-1), but viable microorganisms were recovered from 11 of 16 samples, including several of the most radioactive ones (e.g., >10 kCi of super(137)Cs/g). The isolates from the contaminated sediments and clone libraries from sediment DNA extracts were dominated by members related to known gram-positive bacteria. Gram-positive bacteria most closely related to Arthrobacter species were the most common isolates among all samples, but other phyla high in G+C content were also represented, including Rhodococcus and NOCARDIA: Two isolates from the second-most radioactive sample (>20 kCi of super(137)Cs g super(-1)) were closely related to Deinococcus radiodurans and were able to survive acute doses of ionizing radiation approaching 20 kGy. Many of the gram-positive isolates were resistant to lower levels of gamma radiation. These results demonstrate that gram-positive bacteria, predominantly from phyla high in G+C content, are indigenous to Hanford vadose sediments and that some are effective at surviving the extreme physical and chemical stress associated with radioactive waste. JF - Applied and Environmental Microbiology AU - Fredrickson, James K AU - Zachara, John M AU - Balkwill, David L AU - Kennedy, David AU - Li, Shu-Mei W AU - Kostandarithes, Heather M AU - Daly, Michael J AU - Romine, Margaret F AU - Brockman, Fred J AD - Pacific Northwest National Laboratory, Richland, Washington Y1 - 2004/07// PY - 2004 DA - July 2004 SP - 4230 EP - 4241 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA, [URL:http://www.asm.org/] VL - 70 IS - 7 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts KW - aerobic microorganisms KW - Gram-positive bacteria KW - Vadose zone KW - Migration KW - Rhodococcus KW - USA, Washington KW - Population genetics KW - Radiation KW - Sediment Contamination KW - Alkalis KW - Phylogeny KW - Radioactive Wastes KW - Leakage KW - Radioactive wastes KW - Wastes KW - Stress KW - g Radiation KW - Ionizing radiation KW - USA, Washington, Hanford KW - Microbiology KW - Microorganisms KW - Contaminants KW - Nitrate KW - Probes KW - Cesium Radioisotopes KW - Storage tanks KW - Nocardia KW - Arthrobacter KW - Plumes KW - Bacteria KW - Sediment pollution KW - Caesium 137 KW - Sediments KW - USA, Washington, Hanford Site KW - Nuclear power plants KW - Colony-forming cells KW - DNA KW - Migrations KW - Heterotrophic bacteria KW - Deinococcus radiodurans KW - P 8000:RADIATION KW - SW 3020:Sources and fate of pollution KW - A 01016:Microbial degradation KW - J 02420:Plant Diseases KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19770420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Geomicrobiology+of+High-Level+Nuclear+Waste-Contaminated+Vadose+Sediments+at+the+Hanford+Site%2C+Washington+State&rft.au=Fredrickson%2C+James+K%3BZachara%2C+John+M%3BBalkwill%2C+David+L%3BKennedy%2C+David%3BLi%2C+Shu-Mei+W%3BKostandarithes%2C+Heather+M%3BDaly%2C+Michael+J%3BRomine%2C+Margaret+F%3BBrockman%2C+Fred+J&rft.aulast=Fredrickson&rft.aufirst=James&rft.date=2004-07-01&rft.volume=70&rft.issue=7&rft.spage=4230&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-09-01 N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Population genetics; Sediment pollution; Ionizing radiation; Microbiology; Caesium 137; Migrations; Wastes; Microorganisms; Radioactive wastes; Phylogeny; Nitrate; aerobic microorganisms; Gram-positive bacteria; Probes; Stress; Migration; Sediments; Nuclear power plants; g Radiation; Colony-forming cells; DNA; Heterotrophic bacteria; Contaminants; Alkalis; Plumes; Storage tanks; Leakage; Vadose zone; Radioactive Wastes; Bacteria; Radiation; Sediment Contamination; Cesium Radioisotopes; Arthrobacter; Rhodococcus; Deinococcus radiodurans; Nocardia; USA, Washington; USA, Washington, Hanford; USA, Washington, Hanford Site ER - TY - JOUR T1 - Calibration measurements and standards for radiation protection dosimetry AN - 18025270; 5965454 AB - The safe use of ionising radiation for applications in medicine, electric power production and industrial processes requires accurate measurements that are traceable to national standards. Radiological calibration laboratories provide measurements that may be used to determine the calibration coefficients for personal dosemeters and survey meters. The wide range of ionising radiation applications results in the need for a wide range of reference radiation types and intensities to be available in the calibration laboratory. The methods used and the problems encountered while developing reference radiations are discussed. JF - Radiation Protection Dosimetry AU - Mcdonald, Joseph C AD - Pacific Northwest National Laboratory, Richland, WA Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 317 EP - 321 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK, [mailto:jnl.samples@oup.co.uk], [URL:http://www3.oup.co.uk/jnls/] VL - 109 IS - 4 SN - 0144-8420, 0144-8420 KW - Health & Safety Science Abstracts KW - Ionizing radiation KW - Radiation dosimetry KW - Standards KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18025270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Protection+Dosimetry&rft.atitle=Calibration+measurements+and+standards+for+radiation+protection+dosimetry&rft.au=Mcdonald%2C+Joseph+C&rft.aulast=Mcdonald&rft.aufirst=Joseph&rft.date=2004-07-01&rft.volume=109&rft.issue=4&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Radiation+Protection+Dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Standards; Ionizing radiation; Radiation dosimetry ER - TY - JOUR T1 - Interactions in the tumor-promoting activity of carbon tetrachloride, trichloroacetate, and dichloroacetate in the liver of male B6C3F1 mice AN - 17985392; 5913457 AB - Interactions between carcinogens in mixtures found in the environment have been a concern for several decades. In the present study, male B6C3F1 mice were used to study the responses to mixtures of dichloroacetate (DCA), trichloroacetate (TCA), and carbon tetrachloride (CT). TCA produces liver tumors in mice with the phenotypic characteristics common to peroxisome proliferators. DCA increases the growth of liver tumors with a phenotype that is distinct in several respects from those produced by TCA. These chemicals are effective as carcinogens at doses that do not produce cytotoxicity. Thus, they encourage clonal expansion of initiated cells through subtle, selective mechanisms. CT is well known for its ability to promote the growth of liver tumors through cytotoxicity that produces a generalized growth stimulus in the liver that is reflected in a reparative hyperplasia. Thus, CT is relatively non-specific in its promotion of initiated cells within the liver. The objective of this study was to determine how the differing modes of action of these chemicals might interact when given as mixed exposures. The hypothesis was that the effects of two selective promoters would not be more than additive. On the other hand, CT would be selective only to cells not sensitive to its effects as a cytotoxin. Thus, it was hypothesized that neither DCA nor TCA would add significantly to the effects produced by CT. Mice were initiated by vinyl carbamate (VC), and then promoted by DCA, TCA, CT, or the pair-wised combinations of the three compounds. The ability of TCA to significantly increase tumor numbers in CT-treated mice was probably real and contrary to our original hypothesis that CT was non-specific in its effects on initiated cells. It is probable that the interaction between CT and TCA is explained through stimulation of the growth of cells with differing phenotypes. These data suggest that the outcome of interactions between the mechanisms of tumor promotion vary based on the characteristics of the initiated cells. The interactions may result in additive or inhibitory effects, but no significant evidence of synergy was observed. JF - Toxicology AU - Bull, R J AU - Sasser, L B AU - Lei, X C AD - Molecular Biosciences, Pacific Northwest National Laboratory, Richland, WA 99352, USA, rjbull@earthlink.net Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 169 EP - 183 PB - Elsevier Science Ireland Ltd., P.O. Box 85 Limerick Ireland VL - 199 IS - 2-3 SN - 0300-483X, 0300-483X KW - mice KW - males KW - Toxicology Abstracts KW - Carbon tetrachloride KW - Liver KW - Dichloroacetic acid KW - Tumor-promoting agents KW - Tumors KW - Trichloroacetic acid KW - X 24152:Chronic exposure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17985392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Interactions+in+the+tumor-promoting+activity+of+carbon+tetrachloride%2C+trichloroacetate%2C+and+dichloroacetate+in+the+liver+of+male+B6C3F1+mice&rft.au=Bull%2C+R+J%3BSasser%2C+L+B%3BLei%2C+X+C&rft.aulast=Bull&rft.aufirst=R&rft.date=2004-07-01&rft.volume=199&rft.issue=2-3&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/10.1016%2Fj.tox.2004.02.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Tumors; Tumor-promoting agents; Carbon tetrachloride; Trichloroacetic acid; Dichloroacetic acid; Liver DO - http://dx.doi.org/10.1016/j.tox.2004.02.018 ER - TY - JOUR T1 - Comparative analysis of eukaryotic-type protein phosphatases in two streptomycete genomes AN - 17739189; 6027284 AB - Inspection of the genomes of Streptomyces coelicolor A3 (2) and Streptomyces avermitilis reveals that each contains 55 putative eukaryotic-type protein phosphatases (PPs), the largest number ever identified from any single prokaryotic organism. Unlike most other prokaryotic genomes that have only one or two superfamilies of eukaryotic-type PPs, the streptomycete genomes possess the eukaryotic-type PPs that belong to four superfamilies: 2 phosphoprotein phosphatases and 2 low-molecular-mass protein tyrosine phosphatases in each species, 49 Mg super(2+)- or Mn super(2+)-dependent protein phosphatases (PPMs) and 2 conventional protein tyrosine phosphatases (CPTPs) in S. coelicolor A3(2), and 48 PPMs and 3 CPTPs in S. avermitilis. Sixty-four percent of the PPs found in S. coelicolor A3(2) have orthologues in S. avermitilis, indicating that they originated from a common ancestor and might be involved in the regulation of more conserved metabolic activities. The genes of eukaryotic-type PP unique to each surveyed streptomycete genome are mainly located in two arms of the linear chromosomes and their evolution might be involved in gene acquisition or duplication to adapt to the extremely variable soil environments where these organisms live. In addition, 56% of the PPs from S. coelicolor A3 (2) and 65% of the PPs from S. avermitilis possess at least one additional domain having a putative biological function. These include the domains involved in the detection of redox potential, the binding of cyclic nucleotides, mRNA, DNA and ATP, and the catalysis of phosphorylation reactions. Because they contained multiple functional domains, most of them were assigned functions other than PPs in previous annotations. Although few studies have been conducted on the physiological functions of the PPs in streptomycetes, the existence of large numbers of putative PPs in these two streptomycete genomes strongly suggests that eukaryotictype PPs play important regulatory roles in primary or secondary metabolic pathways. The identification and analysis of such a large number of putative eukaryotic-type PPs from S. coelicolor A3(2) and S. avermitilis constitute a basis for further exploration of the signal transduction pathways mediated by these phosphatases in industrially important strains of streptomycetes. JF - Microbiology AU - Shi, L AU - Zhang, W AD - Microbiology Group, Pacific Northwest National Laboratory, 902 Battelle Blvd, PO Box 999, MSIN: P7-50, Richland, WA 99352, USA, Liang.Shi@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 2247 EP - 2256 VL - 150 IS - 7 SN - 1350-0872, 1350-0872 KW - Microbiology Abstracts B: Bacteriology KW - Phosphoprotein phosphatase KW - Cyclic nucleotides KW - ATP KW - Streptomyces coelicolor KW - Streptomyces avermitilis KW - mRNA KW - Protein-tyrosine-phosphatase KW - Chromosomes KW - Phosphorylation KW - Metabolic pathways KW - DNA KW - protein phosphatase KW - Evolution KW - Catalysis KW - Signal transduction KW - Redox potential KW - J 02740:Genetics and evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17739189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Microbiology&rft.atitle=Comparative+analysis+of+eukaryotic-type+protein+phosphatases+in+two+streptomycete+genomes&rft.au=Shi%2C+L%3BZhang%2C+W&rft.aulast=Shi&rft.aufirst=L&rft.date=2004-07-01&rft.volume=150&rft.issue=7&rft.spage=2247&rft.isbn=&rft.btitle=&rft.title=Microbiology&rft.issn=13500872&rft_id=info:doi/10.1099%2Fmic.0.27057-0 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - ATP; Cyclic nucleotides; Phosphoprotein phosphatase; Protein-tyrosine-phosphatase; mRNA; Chromosomes; Phosphorylation; DNA; Metabolic pathways; protein phosphatase; Evolution; Redox potential; Signal transduction; Catalysis; Streptomyces coelicolor; Streptomyces avermitilis DO - http://dx.doi.org/10.1099/mic.0.27057-0 ER - TY - JOUR T1 - Yeast display of antibody fragments: a discovery and characterization platform AN - 17275575; 6045670 AB - Yeast display of antibody fragments has proven to be an efficient and productive means for directed evolution of single-chain Fv (scFv) antibodies for increased affinity and thermal stability and, more recently, for the display and screening of a non-immune scFv and immune Fab libraries. A major strength of yeast display as a novel antibody discovery platform is the ability to characterize the binding properties, i.e., the affinity and epitope binding characteristics, of a clone without the need for subcloning, expression and purification of the scFv. This review focuses on novel attributes of yeast display for antibody engineering endeavors. JF - Journal of Immunological Methods AU - Feldhaus, MJ AU - Siegel, R W AD - Pacific Northwest National Laboratory, MSIN:K4-12, 902 Battelle Boulevard, P.O. Box 999, Richland, WA 99352, USA, michael.feldhaus@pnl.gov Y1 - 2004/07// PY - 2004 DA - Jul 2004 SP - 69 EP - 80 PB - Elsevier B.V. VL - 290 IS - 1-2 SN - 0022-1759, 0022-1759 KW - Biotechnology and Bioengineering Abstracts; Immunology Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Yeasts KW - Antibodies KW - Fab KW - Fv KW - W3 33375:Antibodies KW - F 06711:Monoclonal antibodies, hybridomas, antigens and antisera KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17275575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Immunological+Methods&rft.atitle=Yeast+display+of+antibody+fragments%3A+a+discovery+and+characterization+platform&rft.au=Feldhaus%2C+MJ%3BSiegel%2C+R+W&rft.aulast=Feldhaus&rft.aufirst=MJ&rft.date=2004-07-01&rft.volume=290&rft.issue=1-2&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=Journal+of+Immunological+Methods&rft.issn=00221759&rft_id=info:doi/10.1016%2Fj.jim.2004.04.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Antibodies; Yeasts; Fab; Fv DO - http://dx.doi.org/10.1016/j.jim.2004.04.009 ER - TY - JOUR T1 - Calmodulin involvement in stress-activated nuclear localization of albumin in JB6 epithelial cells. AN - 72000344; 15182187 AB - We report that albumin is translocated to the nucleus in response to oxidative stress. Prior measurements have demonstrated that in concert with known transcription factors albumin binds to an antioxidant response element, which controls the expression of glutathione S-transferase and other antioxidant enzymes that function to mediate adaptive cellular responses [Holderman, M. T., Miller, K. P., Dangott, L. J., and Ramos, K. S. (2002) Mol. Pharmacol. 61, 1174-1183]. To investigate the mechanisms underlying this adaptive cell response, we have identified linkages between calcium signaling and the nuclear translocation of albumin in JB6 epithelial cells. Under resting conditions, albumin and the calcium regulatory protein calmodulin (CaM) co-immunoprecipitate using antibodies against either protein, indicating a tight association. Calcium activation of CaM disrupts the association between CaM and albumin, suggesting that transient increases in cytosolic calcium levels function to mobilize intracellular albumin to facilitate its translocation into the nucleus. Likewise, nuclear translocation of albumin is induced by exposure of cells to hydrogen peroxide or a phorbol ester, indicating a functional linkage between reactive oxygen species, calcium, and PKC-signaling pathways. Inclusion of an antioxidant enzyme (i.e., superoxide dismutase) blocks nuclear translocation, suggesting that the oxidation of sensitive proteins functions to coordinate the adaptive cellular response. These results suggest that elevated calcium transients and associated increases in reactive oxygen species contribute to adaptive cellular responses through the mobilization and nuclear translocation of cellular albumin. JF - Biochemistry AU - Weber, Thomas J AU - Negash, Sewite AU - Smallwood, Heather S AU - Ramos, Kenneth S AU - Thrall, Brian D AU - Squier, Thomas C AD - Cell Biology Group, Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. thomas.weber@pnl.gov Y1 - 2004/06/15/ PY - 2004 DA - 2004 Jun 15 SP - 7443 EP - 7450 VL - 43 IS - 23 SN - 0006-2960, 0006-2960 KW - Albumins KW - 0 KW - Calmodulin KW - Phorbol 12,13-Dibutyrate KW - 37558-16-0 KW - Superoxide Dismutase KW - EC 1.15.1.1 KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Calcium -- metabolism KW - Animals KW - Superoxide Dismutase -- metabolism KW - Mice KW - Calcium -- pharmacology KW - Protein Binding KW - Cell Line KW - Protein Transport KW - Phorbol 12,13-Dibutyrate -- pharmacology KW - Epithelial Cells -- metabolism KW - Calmodulin -- metabolism KW - Albumins -- metabolism KW - Cell Nucleus -- metabolism KW - Oxidative Stress UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72000344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Calmodulin+involvement+in+stress-activated+nuclear+localization+of+albumin+in+JB6+epithelial+cells.&rft.au=Weber%2C+Thomas+J%3BNegash%2C+Sewite%3BSmallwood%2C+Heather+S%3BRamos%2C+Kenneth+S%3BThrall%2C+Brian+D%3BSquier%2C+Thomas+C&rft.aulast=Weber&rft.aufirst=Thomas&rft.date=2004-06-15&rft.volume=43&rft.issue=23&rft.spage=7443&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-08-30 N1 - Date created - 2004-06-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Dosimetry model for radioactivity localized to intestinal mucosa. AN - 66762910; 15285876 AB - BACKGROUNDThis paper provides a new model for calculating radiation-absorbed doses to the full thickness of the small and large intestinal walls, and to the mucosal layers. The model was used to estimate the intestinal radiation doses from yttrium-90-labeled-DOTA-biotin binding to NR-LU-10-streptavidin in patients.METHODSWe selected model parameters from published data and observations, and used the model to calculate energy-absorbed fractions using the EGS4 radiation transport code. We determined the cumulated (90)Y activity in the small and large intestines of patients from gamma camera images, and calculated absorbed doses to the mucosal layer and to the whole intestinal wall.RESULTSThe mean absorbed dose to the wall of the small intestine was 16.2 mGy/MBq (60 cGy/mCi) administered from (90)Y localized in the mucosa, and 70 mGy/MBq (260 cGy/mCi) to the mucosal layer within the wall. Doses to the large intestinal wall and to the mucosa of the large intestine were lower than those for the small intestine by a factor of about 2.5. These doses are greater by factors of about 5 to 6 than those that would have been calculated using the standard MIRD models that assume the intestinal activity is in the bowel contents.CONCLUSIONSThe specific uptake of radiopharmaceuticals in mucosal tissues may lead to dose-related intestinal toxicities. Tissue dosimetry at the sub-organ level is useful for a better understanding of intestinal tract radiotoxicity and associated dose-response relationships. JF - Cancer biotherapy & radiopharmaceuticals AU - Fisher, Darrell AU - Rajon, Didier AU - Breitz, Hazel AU - Goris, Michael AU - Bolch, Wesley AU - Knox, Susan AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard P7-27, Richland, WA 99352, USA. dr.fisher@pnl.gov Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 293 EP - 307 VL - 19 IS - 3 SN - 1084-9785, 1084-9785 KW - Index Medicus KW - Radiation Dosage KW - Humans KW - Radiography KW - Monte Carlo Method KW - Intestinal Mucosa -- radiation effects KW - Intestinal Mucosa -- diagnostic imaging KW - Models, Biological KW - Intestinal Mucosa -- anatomy & histology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66762910?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cancer+biotherapy+%26+radiopharmaceuticals&rft.atitle=Dosimetry+model+for+radioactivity+localized+to+intestinal+mucosa.&rft.au=Fisher%2C+Darrell%3BRajon%2C+Didier%3BBreitz%2C+Hazel%3BGoris%2C+Michael%3BBolch%2C+Wesley%3BKnox%2C+Susan&rft.aulast=Fisher&rft.aufirst=Darrell&rft.date=2004-06-01&rft.volume=19&rft.issue=3&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=Cancer+biotherapy+%26+radiopharmaceuticals&rft.issn=10849785&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2005-01-11 N1 - Date created - 2004-08-02 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Identifying the sources of subsurface contamination at the Handford Site in Washington using high-precision uranium isotopic measurements AN - 51797149; 2004-074366 JF - Environmental Science & Technology, ES & T AU - Christensen, John N AU - Dresel, P Evan AU - Conrad, Mark E AU - Maher, Kate AU - DePaolo, Donald J Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 3330 EP - 3337 PB - American Chemical Society, Washington, DC VL - 38 IS - 12 SN - 0013-936X, 0013-936X KW - United States KW - hazardous waste KW - lithostratigraphy KW - Cold Creek KW - volcanic rocks KW - contaminant plumes KW - isotopes KW - igneous rocks KW - unsaturated zone KW - mass spectra KW - environmental analysis KW - ground water KW - Cenozoic KW - radioactive isotopes KW - movement KW - basalts KW - sediments KW - Pasco Basin KW - spectra KW - soils KW - hydrology KW - bedrock KW - high-resolution methods KW - Washington KW - isotope ratios KW - Columbia River Basalt Group KW - pollution KW - Hanford Site KW - Ringold Formation KW - Miocene KW - measurement KW - ICP mass spectra KW - Tertiary KW - boreholes KW - Neogene KW - metals KW - U-234 KW - Pliocene KW - uranium KW - U-238/U-234 KW - waste disposal KW - actinides KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51797149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Identifying+the+sources+of+subsurface+contamination+at+the+Handford+Site+in+Washington+using+high-precision+uranium+isotopic+measurements&rft.au=Christensen%2C+John+N%3BDresel%2C+P+Evan%3BConrad%2C+Mark+E%3BMaher%2C+Kate%3BDePaolo%2C+Donald+J&rft.aulast=Christensen&rft.aufirst=John&rft.date=2004-06-01&rft.volume=38&rft.issue=12&rft.spage=3330&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 30 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; basalts; bedrock; boreholes; Cenozoic; Cold Creek; Columbia River Basalt Group; contaminant plumes; environmental analysis; ground water; Hanford Site; hazardous waste; high-resolution methods; hydrology; ICP mass spectra; igneous rocks; isotope ratios; isotopes; lithostratigraphy; mass spectra; measurement; metals; Miocene; movement; Neogene; Pasco Basin; Pliocene; pollution; radioactive isotopes; Ringold Formation; sediments; soils; spectra; Tertiary; U-234; U-238/U-234; United States; unsaturated zone; uranium; volcanic rocks; Washington; waste disposal ER - TY - JOUR T1 - Copper sorption mechanisms on smectites AN - 51763074; 2005-008200 AB - To provide a basis for development of adsorption models it is critical that molecular-level studies be done to characterize sorption processes. This study uses X-ray absorption fine structure (XAFS) and e.p.r. spectroscopic experiments on copper (II) sorbed on smectite clays using suspension pH and ionic strength as variables. At low ionic strength, results suggest that Cu is sorbing in the interlayers and maintains its hydration sphere. At high ionic strength, Cu atoms are excluded from the interlayer and sorb primarily on the silanol and aluminol functional groups of the montmorillonite or beidellite structures. Interpretation of the XAFS and e.p.r. spectroscopy results provides evidence that multinuclear complexes are forming. Fitting of extended X-ray absorption fine structure spectra revealed that the Cu-Cu atoms in the multinuclear complexes are 2.65 Aa apart, and have coordination numbers near one. This structural information suggests that small Cu dimers are sorbing on the surface. These complexes are consistent with observed sorption on mica and amorphous silicon dioxide, yet are inconsistent with previous spectroscopic results for Cu sorption on montmorillonite. The results reported in this paper provide mechanistic data that will be useful for the modelling of surface interactions of Cu with clay minerals, and predicting the geochemical cycling of Cu in the environment. JF - Clays and Clay Minerals AU - Strawn, Daniel G AU - Palmer, Noel E AU - Furnare, Luca J AU - Goodell, Carmen AU - Amonette, James E AU - Kukkadapu, Ravi K Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 321 EP - 333 PB - Clay Minerals Society, Clarkson, NY VL - 52 IS - 3 SN - 0009-8604, 0009-8604 KW - silicates KW - sorption KW - copper KW - clay mineralogy KW - XAFS spectra KW - smectite KW - adsorption KW - X-ray spectra KW - clay minerals KW - metals KW - chemical properties KW - sheet silicates KW - spectra KW - geochemistry KW - EPR spectra KW - montmorillonite KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51763074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Copper+sorption+mechanisms+on+smectites&rft.au=Strawn%2C+Daniel+G%3BPalmer%2C+Noel+E%3BFurnare%2C+Luca+J%3BGoodell%2C+Carmen%3BAmonette%2C+James+E%3BKukkadapu%2C+Ravi+K&rft.aulast=Strawn&rft.aufirst=Daniel&rft.date=2004-06-01&rft.volume=52&rft.issue=3&rft.spage=321&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/10.1346%2FCCMN.2004.0520307 L2 - http://www.ingentaconnect.com/content/cms/ccm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2005-01-01 N1 - Number of references - 47 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; chemical properties; clay mineralogy; clay minerals; copper; EPR spectra; geochemistry; metals; montmorillonite; sheet silicates; silicates; smectite; sorption; spectra; X-ray spectra; XAFS spectra DO - http://dx.doi.org/10.1346/CCMN.2004.0520307 ER - TY - JOUR T1 - Heterogeneous reduction of uranyl by micas; crystal chemical and solution controls AN - 51747138; 2005-018629 AB - This contribution primarily uses X-ray photoelectron spectroscopy (XPS) to better understand mechanisms for coupled sorption-reduction of aqueous U (super VI) by ferrous micas. Additional information was obtained with X-ray absorption spectroscopy (XAS) and transmission electron microscopy (TEM). The research is important because homogeneous reduction of aqueous U (super VI) is sluggish compared to heterogeneous reduction pathways, and micas are important sorbents for uranium in granitic terrains, which have been proposed as potential radionuclide waste disposal sites. Three micas (high, medium and low Fe/Mg biotites), prepared as thin centimeter-sized books, were reacted with U (super VI) solutions that contained 0-25 mM Na (super +) or K (super +) , at pH = 4.5, 5.0, 6.0, and 9.5. All the experiments were performed under argon at one bar. Solid samples were retrieved at timed intervals for up to 20 h. Both mica edge and basal plane orientations were analyzed by XPS. Analyses of peak positions, core satellites, and the 5f valence band indicate that U (super VI) can be reduced by biotite and that heterogeneous reduction depends on the type and concentration of alkali cation in solution, crystallography, and mica composition. We conclude that ferrous micas can reduce U (super VI) on edge sites, but not on exposed basal plane surfaces, and that Na (super +) and K (super +) facilitate and hinder the reaction, respectively. These observations pertain over a broad range of pH.X-Ray absorption near edge spectroscopy (XANES) of annite sections indicates that the interlayer region, as opposed to external basal surfaces, also offers possible sites for heterogeneous reduction of U (super VI) . TEM of annites with high uranium coverage confirmed the presence of interlayer uranium; interestingly, this uranium is concentrated in U-rich nano-scale zones. JF - Geochimica et Cosmochimica Acta AU - Ilton, Eugene S AU - Haiduc, Anca AU - Moses, Carl O AU - Heald, Steve M AU - Elbert, David C AU - Veblen, David R Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 2417 EP - 2435 PB - Pergamon, Oxford VL - 68 IS - 11 SN - 0016-7037, 0016-7037 KW - silicates KW - sorption KW - iron KW - radioactive waste KW - XANES spectra KW - chemical reactions KW - mica group KW - applications KW - spectra KW - reduction KW - X-ray photoelectron spectra KW - heterogeneity KW - geochemistry KW - experimental studies KW - annite KW - uranyl ion KW - mineral-water interface KW - X-ray spectra KW - TEM data KW - metals KW - biotite KW - sheet silicates KW - uranium KW - waste disposal KW - crystal chemistry KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51747138?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Heterogeneous+reduction+of+uranyl+by+micas%3B+crystal+chemical+and+solution+controls&rft.au=Ilton%2C+Eugene+S%3BHaiduc%2C+Anca%3BMoses%2C+Carl+O%3BHeald%2C+Steve+M%3BElbert%2C+David+C%3BVeblen%2C+David+R&rft.aulast=Ilton&rft.aufirst=Eugene&rft.date=2004-06-01&rft.volume=68&rft.issue=11&rft.spage=2417&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.08.010 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 84 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; annite; applications; biotite; chemical reactions; crystal chemistry; experimental studies; geochemistry; heterogeneity; iron; metals; mica group; mineral-water interface; radioactive waste; reduction; sheet silicates; silicates; sorption; spectra; TEM data; uranium; uranyl ion; waste disposal; X-ray photoelectron spectra; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2003.08.010 ER - TY - JOUR T1 - Reduction of uranium(VI) under sulfate-reducing conditions in the presence of Fe(III)-(hydr)oxides AN - 51730021; 2005-028223 AB - Hexavalent uranium [U(VI)] dissolved in a modified lactate-C medium was treated under anoxic conditions with a mixture of an Fe(III)-(hydr)oxide mineral (hematite, goethite, or ferrihydrite) and quartz. The mass of Fe(III)-(hydr)oxide mineral was varied to give equivalent Fe(III)-mineral surface areas. After equilibration, the U(VI)-mineral suspensions were inoculated with sulfate-reducing bacteria, Desulfovibrio desulfuricans G20. Inoculation of the suspensions containing sulfate-limited medium yielded significant G20 growth, along with concomitant reduction of sulfate and U(VI) from solution. With lactate-limited medium, however, some of the uranium that had been removed from solution was resolubilized in the hematite treatments and, to a lesser extent, in the goethite treatments, once the lactate was depleted. No resolubilization was observed in the lactate-limited ferrihydrite treatment even after a prolonged incubation of 4 months. Uranium resolubilization was attributed to reoxidation of the uraninite by Fe(III) present in the (hydr)oxide phases. Analysis by U L (sub 3) -edge XANES spectroscopy of mineral specimens sampled at the end of the experiments yielded spectra similar to that of uraninite, but having distinct features, notably a much more intense and slightly broader white line consistent with precipitation of nanometer-sized particles. The XANES spectra thus provided strong evidence for SRB-promoted removal of U(VI) from solution by reductive precipitation of uraninite. Consequently, our results suggest that SRB mediate reduction of soluble U(VI) to an insoluble U(IV) oxide, so long as a suitable electron donor is available. Depletion of the electron donor may result in partial reoxidation of the U(IV) to soluble U(VI) species when the surfaces of crystalline Fe(III)-(hydr)oxides are incompletely reduced. JF - Geochimica et Cosmochimica Acta AU - Sani, R K AU - Peyton, B M AU - Amonette, J E AU - Geesey, G G Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 2639 EP - 2648 PB - Pergamon, Oxford VL - 68 IS - 12 SN - 0016-7037, 0016-7037 KW - iron oxides KW - goethite KW - remediation KW - XANES spectra KW - laboratory studies KW - hematite KW - oxides KW - spectra KW - reduction KW - geochemistry KW - experimental studies KW - sulfate ion KW - oxidation KW - bioremediation KW - ferrihydrite KW - X-ray spectra KW - iron hydroxides KW - hydroxides KW - biogenic processes KW - metals KW - bacteria KW - uranium KW - waste disposal KW - uraninite KW - actinides KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reduction+of+uranium%28VI%29+under+sulfate-reducing+conditions+in+the+presence+of+Fe%28III%29-%28hydr%29oxides&rft.au=Sani%2C+R+K%3BPeyton%2C+B+M%3BAmonette%2C+J+E%3BGeesey%2C+G+G&rft.aulast=Sani&rft.aufirst=R&rft.date=2004-06-01&rft.volume=68&rft.issue=12&rft.spage=2639&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2004.01.005 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 69 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; bacteria; biogenic processes; bioremediation; experimental studies; ferrihydrite; geochemistry; goethite; hematite; hydroxides; iron hydroxides; iron oxides; laboratory studies; metals; oxidation; oxides; reduction; remediation; spectra; sulfate ion; uraninite; uranium; waste disposal; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2004.01.005 ER - TY - JOUR T1 - Diversity of methanotroph communities in a basalt aquifer AN - 51624253; 2006-020037 JF - FEMS Microbiology. Ecology AU - Newby, D T AU - Reed, D W AU - Petzke, L M AU - Igoe, A L AU - Delwiche, M E AU - Roberto, F F AU - McKinley, J P AU - Whiticar, M J AU - Colwell, F S Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 333 EP - 344 PB - Elsevier Science on behalf of the Federation of European Microbiological Societies, Amsterdam VL - 48 IS - 3 SN - 0168-6496, 0168-6496 KW - United States KW - Snake River Plain Aquifer KW - chlorinated hydrocarbons KW - water quality KW - volcanic rocks KW - biomass KW - igneous rocks KW - aliphatic hydrocarbons KW - ground water KW - carbon KW - basalts KW - halogenated hydrocarbons KW - Idaho KW - concentration KW - methane KW - phylogeny KW - metabolism KW - pollution KW - porous materials KW - alkanes KW - solubility KW - geochemical cycle KW - aquifers KW - organic compounds KW - RNA KW - bacteria KW - methanotrophs KW - hydrocarbons KW - DNA KW - trichloroethylene KW - carbon cycle KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51624253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=FEMS+Microbiology.+Ecology&rft.atitle=Diversity+of+methanotroph+communities+in+a+basalt+aquifer&rft.au=Newby%2C+D+T%3BReed%2C+D+W%3BPetzke%2C+L+M%3BIgoe%2C+A+L%3BDelwiche%2C+M+E%3BRoberto%2C+F+F%3BMcKinley%2C+J+P%3BWhiticar%2C+M+J%3BColwell%2C+F+S&rft.aulast=Newby&rft.aufirst=D&rft.date=2004-06-01&rft.volume=48&rft.issue=3&rft.spage=333&rft.isbn=&rft.btitle=&rft.title=FEMS+Microbiology.+Ecology&rft.issn=01686496&rft_id=info:doi/10.1016%2Fj.femsec.2004.02.001 L2 - http://www.sciencedirect.com/science/journal/01686496 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aquifers; bacteria; basalts; biomass; carbon; carbon cycle; chlorinated hydrocarbons; concentration; DNA; geochemical cycle; ground water; halogenated hydrocarbons; hydrocarbons; Idaho; igneous rocks; metabolism; methane; methanotrophs; microorganisms; organic compounds; phylogeny; pollution; porous materials; RNA; Snake River Plain Aquifer; solubility; trichloroethylene; United States; volcanic rocks; water quality DO - http://dx.doi.org/10.1016/j.femsec.2004.02.001 ER - TY - JOUR T1 - Three-dimensional distribution of gas hydrate beneath southern Hydrate Ridge; constraints from ODP Leg 204 AN - 51616239; 2006-023697 AB - Large uncertainties about the energy resource potential and role in global climate change of gas hydrates result from uncertainty about how much hydrate is contained in marine sediments. During Leg 204 of the Ocean Drilling Program (ODP) to the accretionary complex of the Cascadia subduction zone, we sampled the gas hydrate stability zone (GHSZ) from the seafloor to its base in contrasting geological settings defined by a 3D seismic survey. By integrating results from different methods, including several new techniques developed for Leg 204, we overcome the problem of spatial under-sampling inherent in robust methods traditionally used for estimating the hydrate content of cores and obtain a high-resolution, quantitative estimate of the total amount and spatial variability of gas hydrate in this structural system. We conclude that high gas hydrate content (30-40% of pore space or 20-26% of total volume) is restricted to the upper tens of meters below the seafloor near the summit of the structure, where vigorous fluid venting occurs. Elsewhere, the average gas hydrate content of the sediments in the gas hydrate stability zone is generally <2% of the pore space, although this estimate may increase by a factor of 2 when patchy zones of locally higher gas hydrate content are included in the calculation. These patchy zones are structurally and stratigraphically controlled, contain up to 20% hydrate in the pore space when averaged over zones approximately 10 m thick, and may occur in up to approximately 20% of the region imaged by 3D seismic data. This heterogeneous gas hydrate distribution is an important constraint on models of gas hydrate formation in marine sediments and the response of the sediments to tectonic and environmental change. JF - Earth and Planetary Science Letters AU - Trehu, Anne M AU - Long, P E AU - Torres, M E AU - Bohrmann, G AU - Rack, F R AU - Collett, T S AU - Goldberg, D S AU - Milkov, A V AU - Riedel, M AU - Schultheiss, P AU - Bangs, N L AU - Barr, S R AU - Borowski, W S AU - Claypool, G E AU - Delwiche, M E AU - Dickens, G R AU - Gracia, E AU - Guerin, G AU - Holland, M AU - Johnson, J E AU - Lee, Y J AU - Liu, C S AU - Su, X AU - Teichert, B AU - Tomaru, H AU - Vanneste, M AU - Watanabe, M AU - Weinberger, J L Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 845 EP - 862 PB - Elsevier, Amsterdam VL - 222 IS - 3-4 SN - 0012-821X, 0012-821X KW - sea water KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - well-logging KW - hydrothermal vents KW - aliphatic hydrocarbons KW - global change KW - fluid phase KW - climate change KW - spatial distribution KW - marine sediments KW - infrared methods KW - sampling KW - sediments KW - ocean floors KW - Leg 204 KW - chemical composition KW - geochemistry KW - climate KW - East Pacific KW - continental margin KW - seismic profiles KW - methane KW - three-dimensional models KW - geophysical methods KW - accreting plate boundary KW - Hydrate Ridge KW - alkanes KW - resistivity KW - hydrochemistry KW - seismic methods KW - models KW - organic compounds KW - North Pacific KW - Pacific Ocean KW - hydrocarbons KW - surveys KW - geophysical profiles KW - Ocean Drilling Program KW - Cascadia subduction zone KW - mid-ocean ridges KW - 02B:Hydrochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51616239?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Three-dimensional+distribution+of+gas+hydrate+beneath+southern+Hydrate+Ridge%3B+constraints+from+ODP+Leg+204&rft.au=Trehu%2C+Anne+M%3BLong%2C+P+E%3BTorres%2C+M+E%3BBohrmann%2C+G%3BRack%2C+F+R%3BCollett%2C+T+S%3BGoldberg%2C+D+S%3BMilkov%2C+A+V%3BRiedel%2C+M%3BSchultheiss%2C+P%3BBangs%2C+N+L%3BBarr%2C+S+R%3BBorowski%2C+W+S%3BClaypool%2C+G+E%3BDelwiche%2C+M+E%3BDickens%2C+G+R%3BGracia%2C+E%3BGuerin%2C+G%3BHolland%2C+M%3BJohnson%2C+J+E%3BLee%2C+Y+J%3BLiu%2C+C+S%3BSu%2C+X%3BTeichert%2C+B%3BTomaru%2C+H%3BVanneste%2C+M%3BWatanabe%2C+M%3BWeinberger%2C+J+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2004-06-01&rft.volume=222&rft.issue=3-4&rft.spage=845&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2004.03.035 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2006-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - accreting plate boundary; aliphatic hydrocarbons; alkanes; Cascadia subduction zone; chemical composition; climate; climate change; continental margin; East Pacific; fluid phase; gas hydrates; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; global change; Hydrate Ridge; hydrocarbons; hydrochemistry; hydrothermal vents; infrared methods; Leg 204; marine sediments; methane; mid-ocean ridges; models; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; organic compounds; Pacific Ocean; resistivity; sampling; sea water; sediments; seismic methods; seismic profiles; spatial distribution; surveys; three-dimensional models; well-logging DO - http://dx.doi.org/10.1016/j.epsl.2004.03.035 ER - TY - JOUR T1 - Zero-valent iron removal rates of aqueous Cr(VI) measured under flow conditions AN - 51607762; 2006-026304 JF - Water, Air and Soil Pollution AU - Kaplan, Daniel I AU - Gilmore, T J Y1 - 2004/06// PY - 2004 DA - June 2004 SP - 21 EP - 33 PB - Springer, Dordrecht VL - 155 IS - 1-4 SN - 0049-6979, 0049-6979 KW - United States KW - liquid phase KW - aquifer vulnerability KW - concentration KW - toxic materials KW - Washington KW - oxygen KW - detection limit KW - pollution KW - Hanford Site KW - iron KW - remediation KW - ground water KW - aquifers KW - carcinogens KW - chemical reactions KW - dissolved oxygen KW - dissolved materials KW - metals KW - water treatment KW - kinetics KW - SEM data KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51607762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water%2C+Air+and+Soil+Pollution&rft.atitle=Zero-valent+iron+removal+rates+of+aqueous+Cr%28VI%29+measured+under+flow+conditions&rft.au=Kaplan%2C+Daniel+I%3BGilmore%2C+T+J&rft.aulast=Kaplan&rft.aufirst=Daniel&rft.date=2004-06-01&rft.volume=155&rft.issue=1-4&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air+and+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/ L2 - http://www.springerlink.com/(hi4cjunvnzs4hnradzi0ib55)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100344,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WAPLAC N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; carcinogens; chemical reactions; concentration; detection limit; dissolved materials; dissolved oxygen; ground water; Hanford Site; iron; kinetics; liquid phase; metals; oxygen; pollution; remediation; SEM data; toxic materials; United States; Washington; water treatment ER - TY - JOUR T1 - Adatom Fe(III) on the hematite surface; observation of a key reactive surface species AN - 51291159; 2008-023333 AB - The reactivity of a mineral surface is determined by the variety and population of different types of surface sites (e.g., step, kink, adatom, and defect sites). The concept of "adsorbed nutrient" has been built into crystal growth theories, and many other studies of mineral surface reactivity appeal to ill-defined "active sites." Despite their theoretical importance, there has been little direct experimental or analytical investigation of the structure and properties of such species. Here, we use ex-situ and in-situ scanning tunneling microcopy (STM) combined with calculated images based on a resonant tunneling model to show that observed nonperiodic protrusions and depressions on the hematite (001) surface can be explained as Fe in an adsorbed or adatom state occupying sites different from those that result from simple termination of the bulk mineral. The number of such sites varies with sample preparation history, consistent with their removal from the surface in low pH solutions. JF - Geochemical Transactions AU - Eggleston, Carrick M AU - Stack, Andrew G AU - Rosso, Kevin M AU - Bice, Angela M Y1 - 2004/06// PY - 2004 DA - June 2004 PB - BioMed Central, London VL - 5 IS - 2 SN - 1467-4866, 1467-4866 KW - surface properties KW - scanning tunneling microscopy KW - hematite KW - impurities KW - data processing KW - oxides KW - techniques KW - adsorption KW - electron microscopy KW - image analysis KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51291159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Eggleston%2C+Carrick+M%3BStack%2C+Andrew+G%3BRosso%2C+Kevin+M%3BBice%2C+Angela+M&rft.aulast=Eggleston&rft.aufirst=Carrick&rft.date=2004-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Adatom+Fe%28III%29+on+the+hematite+surface%3B+observation+of+a+key+reactive+surface+species&rft.title=Adatom+Fe%28III%29+on+the+hematite+surface%3B+observation+of+a+key+reactive+surface+species&rft.issn=14674866&rft_id=info:doi/10.1063%2F1.1772991 L2 - http://www.rsc.org/Publishing/Journals/GT/Index.asp LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 38 N1 - Document feature - illus. incl. table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; data processing; electron microscopy; hematite; image analysis; impurities; oxides; scanning tunneling microscopy; surface properties; techniques DO - http://dx.doi.org/10.1063/1.1772991 ER - TY - JOUR T1 - Intercomparison experiments of systems for the measurement of xenon radionuclides in the atmosphere AN - 16180767; 5959367 AB - Radioactive xenon monitoring is one of the main technologies used for the detection of underground nuclear explosions. Precise and reliable measurements of super(131m)Xe, super(133g)Xe, super(133m)Xe, and super(135g)Xe are required as part of the International Monitoring System for compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT). For the first time, simultaneous testing of four highly sensitive and automated fieldable radioxenon measurement systems has been performed and compared to established laboratory techniques. In addition to an intercomparison of radioxenon monitoring equipment of different design, this paper also presents a set of more than 2000 measurements of activity concentrations of radioactive xenon made in the city of Freiburg, Germany in 2000. The intercomparison experiment showed, that the results from the newly developed systems agree with each other and the equipment fulfills the fundamental requirements for their use in the verification regime of the CTBT. For 24-h measurements, concentrations as low as 0.1 mBq m super(-3) were measured for atmospheric samples ranging in size from 10 to 80 m super(3). The super(133)Xe activity concentrations detected in the ambient air ranged from below 1 mBq m super(-3) to above 100 mBq m super(-3). JF - Applied Radiation and Isotopes AU - Auer, M AU - Axelsson, A AU - Blanchard, X AU - Bowyer, T W AU - Brachet, G AU - Bulowski, I AU - Dubasov, Y AU - Elmgren, K AU - Fontaine, J P AU - Harms, W AU - Hayes, J C AU - Heimbigner, T R AU - McIntyre, JI AU - Panisko, ME AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA, ted.bowyer@pnl.gov Y1 - 2004/06// PY - 2004 DA - Jun 2004 SP - 863 EP - 877 VL - 60 IS - 6 SN - 0969-8043, 0969-8043 KW - Pollution Abstracts KW - Xenon KW - Pollution detection KW - Air sampling KW - Radioisotopes KW - Emission measurements KW - Germany, Freiburg KW - Urban areas KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16180767?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Radiation+and+Isotopes&rft.atitle=Intercomparison+experiments+of+systems+for+the+measurement+of+xenon+radionuclides+in+the+atmosphere&rft.au=Auer%2C+M%3BAxelsson%2C+A%3BBlanchard%2C+X%3BBowyer%2C+T+W%3BBrachet%2C+G%3BBulowski%2C+I%3BDubasov%2C+Y%3BElmgren%2C+K%3BFontaine%2C+J+P%3BHarms%2C+W%3BHayes%2C+J+C%3BHeimbigner%2C+T+R%3BMcIntyre%2C+JI%3BPanisko%2C+ME&rft.aulast=Auer&rft.aufirst=M&rft.date=2004-06-01&rft.volume=60&rft.issue=6&rft.spage=863&rft.isbn=&rft.btitle=&rft.title=Applied+Radiation+and+Isotopes&rft.issn=09698043&rft_id=info:doi/10.1016%2Fj.apradiso.2004.01.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Pollution detection; Xenon; Emission measurements; Radioisotopes; Air sampling; Urban areas; Germany, Freiburg DO - http://dx.doi.org/10.1016/j.apradiso.2004.01.011 ER - TY - JOUR T1 - Noninvasive biomonitoring approaches to determine dosimetry and risk following acute chemical exposure: Analysis of lead or organophosphate insecticide in saliva AN - 17992240; 5940144 AB - There is a need to develop approaches for assessing risk associated with acute exposures to a broad range of metals and chemical agents and to rapidly determine the potential implications to human health. Noninvasive biomonitoring approaches are being developed using reliable portable analytical systems to quantitate dosimetry utilizing readily obtainable body fluids, such as saliva. Saliva has been used to evaluate a broad range of biomarkers, drugs, and environmental contaminants, including heavy metals and pesticides. To advance the application of noninvasive biomonitoring a microfluidic/electrochemical device has also been developed for the analysis of lead (Pb), using square-wave anodic stripping voltametry. The system demonstrates a linear response over a broad concentration range (1-2000 ppb) and is capable of quantitating saliva Pb in rats orally administered acute doses of Pb acetate. Appropriate pharmacokinetic analyses have been used to quantitate systemic dosimetry based on determination of saliva Pb concentrations. In addition, saliva has recently been used to quantitate dosimetry following exposure to the organophosphate insecticide chlorpyrifos in a rodent model system by measuring the major metabolite, trichloropyridinol, and saliva cholinesterase inhibition following acute exposures. These results suggest that technology developed for noninvasive biomonitoring can provide a sensitive and portable analytical tool capable of assessing exposure and risk in real-time. By coupling these noninvasive technologies with pharmacokinetic modeling it is feasible to rapidly quantitate acute exposure to a broad range of chemical agents. In summary, it is envisioned that once fully developed, these monitoring and modeling approaches will be useful for evaluating acute exposure and health risk. JF - Journal of Toxicology and Environmental Health, Part A: Current Issues AU - Timchalk, C AU - Poet, T S AU - Kousba, A A AU - Campbell, JA AU - Lin, Y AD - Pacific Northwest National Laboratory, MSIN: P7-59, 902 Battelle Blvd., PO Box 999, Richland, WA 99352, USA, charles.timchalk@pnl.gov Y1 - 2004/05/28/ PY - 2004 DA - 2004 May 28 SP - 635 EP - 650 VL - 67 IS - 8-10 SN - 1528-7394, 1528-7394 KW - Toxicology Abstracts KW - Risk assessment KW - Reviews KW - biomonitoring KW - Saliva KW - Xenobiotics KW - Lead KW - X 24166:Environmental impact KW - X 24222:Analytical procedures KW - X 24250:Reviews KW - X 24136:Environmental impact UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17992240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Toxicology+and+Environmental+Health%2C+Part+A%3A+Current+Issues&rft.atitle=Noninvasive+biomonitoring+approaches+to+determine+dosimetry+and+risk+following+acute+chemical+exposure%3A+Analysis+of+lead+or+organophosphate+insecticide+in+saliva&rft.au=Timchalk%2C+C%3BPoet%2C+T+S%3BKousba%2C+A+A%3BCampbell%2C+JA%3BLin%2C+Y&rft.aulast=Timchalk&rft.aufirst=C&rft.date=2004-05-28&rft.volume=67&rft.issue=8-10&rft.spage=635&rft.isbn=&rft.btitle=&rft.title=Journal+of+Toxicology+and+Environmental+Health%2C+Part+A%3A+Current+Issues&rft.issn=15287394&rft_id=info:doi/10.1080%2F15287390490428035 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Risk assessment; Reviews; biomonitoring; Xenobiotics; Saliva; Lead DO - http://dx.doi.org/10.1080/15287390490428035 ER - TY - JOUR T1 - Bond-valence methods for pK (sub a) prediction; critical reanalysis and a new approach AN - 51727041; 2005-031922 AB - Bond-valence methods for the prediction of (hydr)oxide solution monomer and surface functional group acidity constants are examined in light of molecular structures calculated using ab initio methods. A new method is presented that is based on these calculated structures, and it is shown that previously published methods have neglected one or more of four essential features of a generalized model. First, if the apparent pK (sub a) values of solution monomers are to be used to predict intrinsic pK (sub a) values of surface functional groups, similar electrostatic corrections must be applied in both cases. In surface complexation models, electrostatic corrections are applied by representing a charged surface as a uniform plane of charge density, and an analogous correction can be made to solution monomers by treating them as charged spheres. Second, it must be remembered that real surfaces and real monomers are not homogeneous planes or spheres. Rather, charge density is distributed rather unevenly, and a further electrostatic correction (which is often quite large) must be made to account for the proximity of electron density to the point of proton attachment. Third, the unsaturated valence of oxygen atoms in oxyacids, hexaquo cations, and oxide surfaces is strongly correlated with acidity after electrostatic corrections are made. However, calculation of unsaturated valence for oxyacids and oxide surfaces must be based on realistic Me-O bond lengths (taking into account bond relaxation), which can be obtained from ab initio structure optimizations. Finally, unsaturated valence must be divided between possible bonds (four for oxygen atoms) to reflect the fact that O-H bonds are localized to particular regions of the O atoms. Empirical models that take all these factors into account are presented for oxyacids and hexaquo cations. These models are applied to the gibbsite (100), (010), (001), and cristobalite (100) surfaces, and it is demonstrated that the model for oxyacids predicts reasonable intrinsic pK (sub a) values for oxide surfaces. However, the prediction of surface pK (sub a) values is complex, because the protonation state of one functional group affects the pK (sub a) values of neighboring groups. Therefore, calculations of larger periodic systems, progressively protonated and reoptimized, are needed. JF - Geochimica et Cosmochimica Acta AU - Bickmore, Barry R AU - Tadanier, Christopher J AU - Rosso, Kevin M AU - Monn, Will D AU - Eggett, Dennis L Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 2025 EP - 2042 PB - Pergamon, Oxford VL - 68 IS - 9 SN - 0016-7037, 0016-7037 KW - silicates KW - numerical models KW - silica minerals KW - data processing KW - crystal structure KW - bonding KW - protons KW - molecular structure KW - digital simulation KW - cristobalite KW - MUSIC model KW - theoretical models KW - oxides KW - graphic methods KW - framework silicates KW - valency KW - gibbsite KW - crystal chemistry KW - geochemistry KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51727041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Bond-valence+methods+for+pK+%28sub+a%29+prediction%3B+critical+reanalysis+and+a+new+approach&rft.au=Bickmore%2C+Barry+R%3BTadanier%2C+Christopher+J%3BRosso%2C+Kevin+M%3BMonn%2C+Will+D%3BEggett%2C+Dennis+L&rft.aulast=Bickmore&rft.aufirst=Barry&rft.date=2004-05-01&rft.volume=68&rft.issue=9&rft.spage=2025&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.11.008 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 60 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bonding; cristobalite; crystal chemistry; crystal structure; data processing; digital simulation; framework silicates; geochemistry; gibbsite; graphic methods; molecular structure; MUSIC model; numerical models; oxides; protons; silica minerals; silicates; theoretical models; valency DO - http://dx.doi.org/10.1016/j.gca.2003.11.008 ER - TY - JOUR T1 - Maximum likelihood Bayesian averaging of spatial variability models in unsaturated fractured tuff AN - 51501348; 2007-009931 JF - Water Resources Research AU - Ye, Ming AU - Neuman, Shlomo P AU - Meyer, Philip D Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 17 PB - American Geophysical Union, Washington, DC VL - 40 IS - 5 SN - 0043-1397, 0043-1397 KW - United States KW - volcanic rocks KW - Bayesian analysis KW - igneous rocks KW - statistical analysis KW - unsaturated zone KW - mathematical models KW - porosity KW - ground water KW - models KW - pyroclastics KW - fractures KW - Apache Leap Research Site KW - spatial variations KW - physical properties KW - maximum likelihood KW - stochastic processes KW - saturation KW - Arizona KW - tuff KW - central Arizona KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51501348?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Maximum+likelihood+Bayesian+averaging+of+spatial+variability+models+in+unsaturated+fractured+tuff&rft.au=Ye%2C+Ming%3BNeuman%2C+Shlomo+P%3BMeyer%2C+Philip+D&rft.aulast=Ye&rft.aufirst=Ming&rft.date=2004-05-01&rft.volume=40&rft.issue=5&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2003WR002557 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 56 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Apache Leap Research Site; Arizona; Bayesian analysis; central Arizona; fractures; ground water; igneous rocks; mathematical models; maximum likelihood; models; permeability; physical properties; porosity; pyroclastics; saturation; spatial variations; statistical analysis; stochastic processes; tuff; United States; unsaturated zone; volcanic rocks DO - http://dx.doi.org/10.1029/2003WR002557 ER - TY - JOUR T1 - Coupled microbial and transport processes in soils AN - 51129706; 2006-006005 AB - This paper reviews methods for modeling coupled microbial and transport processes in variably saturated porous media. Of special interest in this work are interactions between active microbial growth and other transport processes such as gas diffusion and interphase exchange of O2 and other constituents that partition between the aqueous and gas phases. The role of gas-liquid interfaces on microbial transport is also discussed, and various possible kinetic and equilibrium formulations for bacterial cell attachment and detachment are reviewed. The primary objective of this paper is to highlight areas in which additional research may be needed-both experimental and numerical-to elucidate mechanisms associated with the complex interactions that take place between microbial processes and flow and transport processes in soils. In addition to their general ecological significance, these interactions have global-scale implications for C cycling in the environment and the related issue of climate change. JF - Vadose Zone Journal AU - Rockhold, M L AU - Yarwood, R R AU - Selker, J S AU - de Jonge, L W AU - Kjaergaard, C AU - Moldrup, P Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 368 EP - 383 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 2 KW - soils KW - colloidal materials KW - gas-water interface KW - oxygen KW - gaseous phase KW - numerical analysis KW - unsaturated zone KW - porous materials KW - equations KW - capillary water KW - climate change KW - geochemical cycle KW - saturated zone KW - transport KW - mass balance KW - carbon KW - mathematical methods KW - bacteria KW - carbon cycle KW - mass transfer KW - pore water KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51129706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Coupled+microbial+and+transport+processes+in+soils&rft.au=Rockhold%2C+M+L%3BYarwood%2C+R+R%3BSelker%2C+J+S%3Bde+Jonge%2C+L+W%3BKjaergaard%2C+C%3BMoldrup%2C+P&rft.aulast=Rockhold&rft.aufirst=M&rft.date=2004-05-01&rft.volume=3&rft.issue=2&rft.spage=368&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 138 N1 - PubXState - WI N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 17, 2004 N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - bacteria; capillary water; carbon; carbon cycle; climate change; colloidal materials; equations; gas-water interface; gaseous phase; geochemical cycle; mass balance; mass transfer; mathematical methods; microorganisms; numerical analysis; oxygen; pore water; porous materials; saturated zone; soils; transport; unsaturated zone ER - TY - JOUR T1 - Microbiological comparison of core and groundwater samples collected from a fractured basalt aquifer with that of dialysis chambers incubated in situ AN - 50565815; 2008-129728 JF - Geomicrobiology Journal AU - Lehman, R Michael AU - O'Connell, Sean P AU - Banta, Amy AU - Frederickson, James K AU - Reysenbach, Anna-Louise AU - Kieft, Thomas L AU - Colwell, Frederick S Y1 - 2004/05// PY - 2004 DA - May 2004 SP - 169 EP - 182 PB - Taylor & Francis, London VL - 21 IS - 3 SN - 0149-0451, 0149-0451 KW - United States KW - Snake River Plain Aquifer KW - fractured materials KW - Idaho KW - volcanic rocks KW - biomass KW - igneous rocks KW - geomicrobiology KW - samples KW - cores KW - ground water KW - aquifers KW - basalts KW - bacteria KW - dialysis chambers KW - microorganisms KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50565815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Microbiological+comparison+of+core+and+groundwater+samples+collected+from+a+fractured+basalt+aquifer+with+that+of+dialysis+chambers+incubated+in+situ&rft.au=Lehman%2C+R+Michael%3BO%27Connell%2C+Sean+P%3BBanta%2C+Amy%3BFrederickson%2C+James+K%3BReysenbach%2C+Anna-Louise%3BKieft%2C+Thomas+L%3BColwell%2C+Frederick+S&rft.aulast=Lehman&rft.aufirst=R&rft.date=2004-05-01&rft.volume=21&rft.issue=3&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/10.1080%2F01490450490275307 L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; basalts; biomass; cores; dialysis chambers; fractured materials; geomicrobiology; ground water; Idaho; igneous rocks; microorganisms; samples; Snake River Plain Aquifer; United States; volcanic rocks DO - http://dx.doi.org/10.1080/01490450490275307 ER - TY - JOUR T1 - Chemical and meteorological characteristics associated with rapid increases of O sub(3) in Houston, Texas AN - 16175021; 5941831 AB - We report here on measurements made from the 62nd story of the Williams Tower on the west side of Houston, Texas between 15 August and 15 September 2000. The time series of trace gases differ from those at many other urban sites in having very rapidly increasing spikes of O sub(3), HCHO, and PAN. Measurements show that the highest O sub(3) levels in Houston are not always those measured at the surface, and the extreme values may occur aloft. Plumes with high O sub(3) appear to be produced largely from local sources and to have the potential to form additional O sub(3). The ozone production efficiency (7 molecules of O sub(3) produced per molecule of NO sub(x) consumed) when delta O sub(3)/ delta t >= 20 ppb per 15 min was found to be smaller than estimates made from observations directly downwind of the Ship Channel petrochemical plants (e.g. similar to 12). Back trajectories show that simple straight line flow was associated with mean O sub(3) levels of 56 ppb, in contrast to flow patterns associated with a decrease in wind speed or flow reversal, which were associated with mean values of 63 ppb and extremes in excess of 125ppb. VOC samples taken during periods when delta O sub(3)/ delta t >= 20 ppb per 15 min were elevated and in particular light olefins were more than a factor of 7 greater than the corresponding samples collected on other occasions. No significant increase in isoprene at the Williams Tower was associated with these episodes. When air passed over stack emissions in eastern Houston, rich in VOCs, a Lagrangian model simulated O sub(3) production rates of similar to 50 ppb hr super(-1). JF - Journal of Geophysical Research. D. Atmospheres AU - Berkowitz, C M AU - Jobson, T AU - Jiang, G AU - Spicer, C W AU - Doskey, P V AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2004/05// PY - 2004 DA - May 2004 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 109 IS - D10 SN - 0148-0227, 0148-0227 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Citation No. D10307 KW - pollution KW - Houston KW - chemistry KW - 0317 Atmospheric Composition and Structure: Chemical kinetic and photochemical properties KW - 0345 Atmospheric Composition and Structure: Pollution KW - urban and regional (0305) KW - 0368 Atmospheric Composition and Structure: Troposphere KW - constituent transport and chemistry KW - Chemical composition KW - Atmospheric pollution chemistry KW - Formaldehyde in the atmosphere KW - Ozone-volatile organic compounds relationships KW - Ozone production KW - Ozone in urban air KW - Peroxyacetyl nitrate in air KW - Atmospheric chemistry KW - Air trajectories KW - Meteorology KW - Plumes KW - USA, Texas, Houston KW - Volatile organic compounds KW - Ozone KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16175021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=Chemical+and+meteorological+characteristics+associated+with+rapid+increases+of+O+sub%283%29+in+Houston%2C+Texas&rft.au=Berkowitz%2C+C+M%3BJobson%2C+T%3BJiang%2C+G%3BSpicer%2C+C+W%3BDoskey%2C+P+V&rft.aulast=Berkowitz&rft.aufirst=C&rft.date=2004-05-01&rft.volume=109&rft.issue=D10&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&rft_id=info:doi/10.1029%2F2003JD004141 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-12-01 N1 - SuppNotes - Publication date refers to online version. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Ozone production; Atmospheric pollution chemistry; Peroxyacetyl nitrate in air; Ozone in urban air; Air trajectories; Formaldehyde in the atmosphere; Ozone-volatile organic compounds relationships; Chemical composition; Atmospheric chemistry; Meteorology; Plumes; Volatile organic compounds; Ozone; USA, Texas, Houston DO - http://dx.doi.org/10.1029/2003JD004141 ER - TY - JOUR T1 - Development of a physiologically based pharmacokinetic model for chlorobenzene in F-344 rats AN - 17979741; 5934296 AB - A physiologically based pharmacokinetic (PBPK) model to describe the absorption, distribution, metabolism, and elimination of chlorobenzene in rats was developed. Partition coefficients were experimentally determined in rat tissues and blood samples using an in vitro vial equilibration technique. These solubility ratios were in agreement with previous reports. The in vivo metabolism of chlorobenzene was evaluated using groups of three F344 male rats exposed to initial chlorobenzene concentrations ranging from 82 to 6750 ppm in a closed, recirculating gas uptake system. An optimal fit of the family of uptake curves was obtained by adjusting Michaelis-Menten metabolic constants, K sub(m) (affinity) and V sub(max) (capacity), using the PBPK model. At the highest chamber concentration, the uptake curve could not be modeled without the addition of a first-order (K sub(fo)) metabolic pathway. Pretreatment with pyrazole, an inhibitor of oxidative microsomal metabolism, had no impact on the slope of the uptake curve. The completed PBPK model was evaluated against real-time exhaled breath data collected from rats receiving either an intraperitoneal (ip) injection or oral gavage dose of chlorobenzene in corn oil. Exhaled breath profiles were evaluated and absorption rates were determined. Development of the chlorobenzene PBPK model in rats is the first step toward future extrapolations to apply to humans. JF - Journal of Toxicology and Environmental Health, Part A: Current Issues AU - Thrall, K D AU - Woodstock, AD AU - Kania, M R AD - Biological Sciences Division, Pacific Northwest National Laboratory, 902 Battelle Blvd., Mail Stop P7-59, Richland, WA 99352, USA, karla.thrall@pnl.gov Y1 - 2004/04/09/ PY - 2004 DA - 2004 Apr 09 SP - 525 EP - 536 VL - 67 IS - 7 SN - 1528-7394, 1528-7394 KW - rats KW - Toxicology Abstracts KW - Mathematical models KW - Chlorobenzene KW - Pharmacokinetics KW - Metabolism KW - X 24153:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17979741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Toxicology+and+Environmental+Health%2C+Part+A%3A+Current+Issues&rft.atitle=Development+of+a+physiologically+based+pharmacokinetic+model+for+chlorobenzene+in+F-344+rats&rft.au=Thrall%2C+K+D%3BWoodstock%2C+AD%3BKania%2C+M+R&rft.aulast=Thrall&rft.aufirst=K&rft.date=2004-04-09&rft.volume=67&rft.issue=7&rft.spage=525&rft.isbn=&rft.btitle=&rft.title=Journal+of+Toxicology+and+Environmental+Health%2C+Part+A%3A+Current+Issues&rft.issn=15287394&rft_id=info:doi/10.1080%2F15287390490425731 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Metabolism; Mathematical models; Pharmacokinetics; Chlorobenzene DO - http://dx.doi.org/10.1080/15287390490425731 ER - TY - JOUR T1 - Conformational changes within the cytosolic portion of phospholamban upon release of Ca-ATPase inhibition. AN - 71777043; 15049694 AB - Phospholamban (PLB) is a major target of the beta-adrenergic cascade in the heart, functioning to modulate contractile force by altering the rate of calcium re-sequestration by the Ca-ATPase. Functionally, inhibition by PLB binding is manifested by shifts in the calcium dependence of Ca-ATPase activation toward higher calcium levels; phosphorylation of PLB by PKA reverses the inhibitory action of PLB. To investigate structural changes in the cytoplasmic portion of PLB that result from either the phosphorylation of PLB by cAMP-dependent protein kinase (PKA) or calcium binding to the Ca-ATPase, we have used frequency-domain fluorescence spectroscopy to measure the spatial separation and conformational heterogeneity between N-(1-pyrenyl)maleimide, covalently bound to a single cysteine (Cys(24)) engineered near the membrane surface of the transmembrane domain of PLB, and Tyr(6) in the cytosolic domain. Irrespective of calcium activation of the Ca-ATPase or phosphorylation of Ser(16) in PLB by PKA, we find that PLB remains tightly associated with the Ca-ATPase in a well-defined conformation. However, calcium activation of the Ca-ATPase induces an increase in the overall dimensions of the cytoplasmic portion of bound PLB, whereas PLB phosphorylation results in a more compact structure, consistent with increased helical content induced by a salt link between phospho-Ser(16) and Arg(13). Thus, enzyme activation of the Ca-ATPase may occur through different mechanisms: calcium binding to high-affinity sites within the Ca-ATPase functions to overcome conformational constraints imposed by PLB on the N-domain of the Ca-ATPase; alternatively, phosphorylation stabilizes the backbone fold of PLB to release inhibitory interactions with the Ca-ATPase. JF - Biochemistry AU - Li, Jinhui AU - Bigelow, Diana J AU - Squier, Thomas C AD - Cell Biology Group, Biological Sciences Division, Fundamental Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2004/04/06/ PY - 2004 DA - 2004 Apr 06 SP - 3870 EP - 3879 VL - 43 IS - 13 SN - 0006-2960, 0006-2960 KW - Calcium-Binding Proteins KW - 0 KW - Enzyme Inhibitors KW - Maleimides KW - phospholamban KW - N-(3-pyrene)maleimide KW - 9SZY1M545Z KW - Cyclic AMP-Dependent Protein Kinases KW - EC 2.7.11.11 KW - Calcium-Transporting ATPases KW - EC 3.6.3.8 KW - Cysteine KW - K848JZ4886 KW - Alanine KW - OF5P57N2ZX KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Muscle Fibers, Fast-Twitch -- metabolism KW - Cyclic AMP-Dependent Protein Kinases -- metabolism KW - Animals KW - Calcium -- chemistry KW - Enzyme Activation KW - Cysteine -- genetics KW - Fluorescence Resonance Energy Transfer KW - Maleimides -- chemistry KW - Rabbits KW - Amino Acid Sequence KW - Mutagenesis, Site-Directed KW - Protein Structure, Tertiary -- genetics KW - Phosphorylation KW - Fluorescence Polarization KW - Muscle Fibers, Fast-Twitch -- enzymology KW - Molecular Sequence Data KW - Alanine -- genetics KW - Protein Conformation KW - Calcium-Transporting ATPases -- chemistry KW - Cytosol -- enzymology KW - Enzyme Inhibitors -- chemistry KW - Enzyme Inhibitors -- metabolism KW - Cytosol -- chemistry KW - Calcium-Transporting ATPases -- antagonists & inhibitors KW - Calcium-Binding Proteins -- genetics KW - Calcium-Transporting ATPases -- metabolism KW - Calcium-Binding Proteins -- metabolism KW - Calcium-Binding Proteins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71777043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Conformational+changes+within+the+cytosolic+portion+of+phospholamban+upon+release+of+Ca-ATPase+inhibition.&rft.au=Li%2C+Jinhui%3BBigelow%2C+Diana+J%3BSquier%2C+Thomas+C&rft.aulast=Li&rft.aufirst=Jinhui&rft.date=2004-04-06&rft.volume=43&rft.issue=13&rft.spage=3870&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-07-29 N1 - Date created - 2004-03-30 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Linearity and reversibility of iodide adsorption on sediments from Hanford, Washington under water saturated conditions. AN - 71844739; 15087181 AB - A series of adsorption and desorption experiments were completed to determine the linearity and reversibility of iodide adsorption onto sediment at the Hanford Site in southeastern Washington. Adsorption experiments conducted with Hanford formation sediment and groundwater spiked with dissolved (125)I (as an analog tracer for (129)I) indicated that iodide adsorption was very low (0.2 mL/g) at pH 7.5 and could be represented by a linear isotherm up to a total concentration of 100 mg/L dissolved iodide. The results of desorption experiments revealed that up to 60% of adsorbed iodide was readily desorbed after 14 days by iodide-free groundwater. Because iodide adsorption was considered to be partially reversible, even though small amount of initial iodide is retarded by adsorption at mineral-water interfaces, the weak adsorption affinity results in release of iodide when iodide-free pore waters and uncontaminated groundwaters contact the contaminated sediments in the vadose zone and aquifer systems. JF - Water research AU - Um, Wooyong AU - Serne, R J R Jeffrey AU - Krupka, K M Kenneth M AD - Pacific Northwest National Laboratory, Applied Geology and Geochemistry, Richland, WA 99352, USA. wooyong.um@pnl.gov Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 2009 EP - 2016 VL - 38 IS - 8 SN - 0043-1354, 0043-1354 KW - Iodides KW - 0 KW - Iodine Isotopes KW - Minerals KW - Water Pollutants, Radioactive KW - Water KW - 059QF0KO0R KW - Index Medicus KW - Washington KW - Minerals -- chemistry KW - Hydrogen-Ion Concentration KW - Water Movements KW - Water -- chemistry KW - Water Pollutants, Radioactive -- analysis KW - Adsorption KW - Time Factors KW - Iodides -- chemistry KW - Geologic Sediments -- chemistry KW - Geologic Sediments -- analysis KW - Iodides -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71844739?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+research&rft.atitle=Linearity+and+reversibility+of+iodide+adsorption+on+sediments+from+Hanford%2C+Washington+under+water+saturated+conditions.&rft.au=Um%2C+Wooyong%3BSerne%2C+R+J+R+Jeffrey%3BKrupka%2C+K+M+Kenneth+M&rft.aulast=Um&rft.aufirst=Wooyong&rft.date=2004-04-01&rft.volume=38&rft.issue=8&rft.spage=2009&rft.isbn=&rft.btitle=&rft.title=Water+research&rft.issn=00431354&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-11-16 N1 - Date created - 2004-04-16 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Response of winter birds to soil remediation along the Columbia River at the Hanford Site. AN - 71812369; 15074620 AB - The Columbia River at the Hanford Site, located in south-central Washington State, U.S.A., is a regionally important refugium for overwintering birds. Some of the river shoreline has been designated by the U.S. Department of Energy for environmental clean-up following past production of materials for nuclear weapons. We evaluated the effects of soil remediation on winter birds at six inactive nuclear reactor areas. Remediation activities consisted of daily excavation and removal of approximately 1035 t of contaminated soil from previously herbicided and denuded areas located between 30 and 400 m and mostly in line-of-sight of the river shoreline. Remediation activities had no apparent effect on numbers of riverine or terrestrial birds using adjacent undisturbed shoreline and riparian habitat. JF - Environmental monitoring and assessment AU - Becker, J M AU - McKinstry, C A AD - Pacific Northwest National Laboratory, Richland, Washington, USA. james.becker@pnl.gov PY - 2004 SP - 277 EP - 286 VL - 93 IS - 1-3 SN - 0167-6369, 0167-6369 KW - Soil Pollutants, Radioactive KW - 0 KW - Index Medicus KW - Environmental Pollution -- prevention & control KW - Animals KW - Washington KW - Population Dynamics KW - Seasons KW - Conservation of Natural Resources KW - Soil Pollutants, Radioactive -- poisoning KW - Power Plants KW - Birds KW - Soil Pollutants, Radioactive -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71812369?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+monitoring+and+assessment&rft.atitle=Response+of+winter+birds+to+soil+remediation+along+the+Columbia+River+at+the+Hanford+Site.&rft.au=Becker%2C+J+M%3BMcKinstry%2C+C+A&rft.aulast=Becker&rft.aufirst=J&rft.date=2004-04-01&rft.volume=93&rft.issue=1-3&rft.spage=277&rft.isbn=&rft.btitle=&rft.title=Environmental+monitoring+and+assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-06-15 N1 - Date created - 2004-04-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Results of inspection and cleaning of two radionuclide air-sampling systems based on the requirements of ANSI/HPS N13.1-1999. AN - 71785747; 15057063 AB - The Pacific Northwest National Laboratory inspected and cleaned two radionuclide air-sampling systems that continuously monitor radioactive air emissions from research and development facilities. The inspection and cleaning was performed to evaluate effective methods and potential cost impacts of maintenance requirements in the revised American National Standard Institute standard Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities. The standard requires at least annual inspections of sampling systems followed by cleaning if deposits are visible. During 2001 and 2002, inspections were performed leaving the sampling systems in place and inserting videoscope cables into different access points to allow viewing of the inside and outside of sampling manifolds and transport lines. Cleaning was performed on one of the systems by disconnecting and extracting the sampling manifold, then washing it with de-ionized water and scrub brushes. The wash water was analyzed for radioactivity and solids. Results of the inspection showed greater deposition in one of the systems than would be expected by a High Efficiency Particulate Air (HEPA) filtered exhaust stream, possibly due to accumulation of dust from a short period when unfiltered air was exhausted from construction areas. The second system was also downstream of HEPA filters and appeared much cleaner. The videoscope was a useful and cost-effective tool and provided a better view than could be obtained with the naked eye. However, because even small amounts of deposition were made visible with the videoscope, clarification is needed in defining when probe washing is merited, particularly in existing sampling systems whose design is not conducive to easy removal and cleaning. JF - Health physics AU - Barnett, J M AU - Ballinger, M Y AU - Gervais, T L AU - Douglas, D D AU - Edwards, D L AD - Pacific Northwest National Laboratory, PO Box 999 MSIN P7-68, Richland, WA 99352, USA. matthew.barnett@pnl.gov Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 416 EP - 424 VL - 86 IS - 4 SN - 0017-9078, 0017-9078 KW - Aerosols KW - 0 KW - Air Pollutants, Radioactive KW - Radioactive Waste KW - Radioisotopes KW - Index Medicus KW - United States KW - Sensitivity and Specificity KW - Aerosols -- analysis KW - Radiation Dosage KW - Videotape Recording -- methods KW - Reproducibility of Results KW - Risk Assessment -- methods KW - Environmental Monitoring -- methods KW - Risk Assessment -- trends KW - Environmental Monitoring -- instrumentation KW - Decontamination -- methods KW - Radiometry -- instrumentation KW - Radiation Protection -- methods KW - Radioactive Waste -- analysis KW - Air Pollutants, Radioactive -- analysis KW - Radioisotopes -- analysis KW - Radiometry -- methods KW - Radiometry -- standards KW - Radiation Protection -- instrumentation KW - Air Pollutants, Radioactive -- standards KW - Radiation Protection -- standards KW - Decontamination -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71785747?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Results+of+inspection+and+cleaning+of+two+radionuclide+air-sampling+systems+based+on+the+requirements+of+ANSI%2FHPS+N13.1-1999.&rft.au=Barnett%2C+J+M%3BBallinger%2C+M+Y%3BGervais%2C+T+L%3BDouglas%2C+D+D%3BEdwards%2C+D+L&rft.aulast=Barnett&rft.aufirst=J&rft.date=2004-04-01&rft.volume=86&rft.issue=4&rft.spage=416&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-05-11 N1 - Date created - 2004-04-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Evaluation of sampling locations for two radionuclide air-sampling systems based on the requirements of ANSI/HPS N13.1-1999. AN - 71783652; 15057062 AB - The Pacific Northwest National Laboratory characterized the performance of sampling locations for two radionuclide air-sampling systems that continuously monitor radioactive air emissions from research and development facilities. The testing was conducted to determine whether sampling system locations would meet the criteria for uniform air velocity and contaminant concentration in the American National Standard Institute standard, Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities (ANSI/HPS N13.1-1999). The standard is a revision of the 1969 version that the facilities have been required to meet. Whereas the 1969 standard provided prescriptive criteria for the selection of sampling locations, the 1999 standard is performance-based and requires well-mixed sampling locations that must be demonstrated through performance tests that are specified in the standard. Testing at the Life Sciences Laboratory I was performed on the existing stack at the current sampling location; a scale model was built and used in place of the Radiochemical Processing Laboratory. Although both facilities' sampling sites were compliant with the 1969 standard, only the Radiochemical Processing Laboratory met the criteria of the revised standard. In the future, the use of a computational fluid dynamics computer model may be useful in determining whether a sampling location is likely to test successfully. JF - Health physics AU - Ballinger, M Y AU - Barnett, J M AU - Glissmeyer, J A AU - Edwards, D L AD - Pacific Northwest National Laboratory, PO Box 999 MSIN P7-68, Richland, WA 99352, USA. ballingerm@battelle.org Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 406 EP - 415 VL - 86 IS - 4 SN - 0017-9078, 0017-9078 KW - Aerosols KW - 0 KW - Air Pollutants, Radioactive KW - Radioactive Waste KW - Radioisotopes KW - Index Medicus KW - United States KW - Sensitivity and Specificity KW - Aerosols -- analysis KW - Radiation Dosage KW - Reproducibility of Results KW - Sample Size KW - Risk Assessment -- methods KW - Environmental Monitoring -- methods KW - Risk Assessment -- trends KW - Environmental Monitoring -- instrumentation KW - Radiometry -- instrumentation KW - Radiation Protection -- methods KW - Radioactive Waste -- analysis KW - Air Pollutants, Radioactive -- analysis KW - Radioisotopes -- analysis KW - Radiometry -- methods KW - Radiometry -- standards KW - Radiation Protection -- instrumentation KW - Air Pollutants, Radioactive -- standards KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71783652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Evaluation+of+sampling+locations+for+two+radionuclide+air-sampling+systems+based+on+the+requirements+of+ANSI%2FHPS+N13.1-1999.&rft.au=Ballinger%2C+M+Y%3BBarnett%2C+J+M%3BGlissmeyer%2C+J+A%3BEdwards%2C+D+L&rft.aulast=Ballinger&rft.aufirst=M&rft.date=2004-04-01&rft.volume=86&rft.issue=4&rft.spage=406&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-05-11 N1 - Date created - 2004-04-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Dissolution of Columbia River Basalt and implications of CO (sub 2) sequestration AN - 51790143; 2004-079347 AB - Flood basalt volcanism occurred in the Pacific Northwest between 17.5 and 6 Ma, when over 300 basaltic lavas of the Columbia River Basalt Group were erupted from fissures in eastern Washington, eastern Oregon, and western Idaho. These flood-basalts cover over 200,000 km (super 2) and have an estimated volume of more than 234,000 km (super 3) . Many of the lavas were of extraordinary size with some exceeding 10,000 km (super 3) and traveling many hundreds of kilometers westward from vent systems. The presence of naturally occurring siderite and calcite indicate that the basalt flows have reacted with CO (sub 2) in the past. In order to understand these conditions and the potential for basalt to sequester greenhouse gases, we have under taken dissolution experiments. Steady-state dissolution rates of two samples of the Sentinel Bluffs Member, Grande Ronde Basalt were measured in a well-mixed batch reactor over a range of pH values (3.0 to 7.0) and temperatures (22 degrees , 40 degrees , 70 degrees , and 90 degrees C). Results show that as the pH increases from 3 to 7, the dissolution rate decreases. When normalized by initial geometric surface area, the basalt samples have similar dissolution rates found in the literature for olivine, augite, anorthite, and basaltic glasses. These results show the potential basalt formations have to convert injected CO (sub 2) into solid carbonate minerals. JF - Abstracts with Programs - Geological Society of America AU - Schaef, H Todd AU - Reidel, S R AU - McGrail, B Peter AU - Anonymous Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 32 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - silicates KW - flood basalts KW - volcanic rocks KW - igneous rocks KW - Sentinel Bluffs Member KW - olivine group KW - solution KW - paleoclimatology KW - climate change KW - carbon dioxide KW - Cenozoic KW - Oregon KW - mineral composition KW - volcanism KW - olivine KW - basalts KW - orthosilicates KW - geochemistry KW - pH KW - Washington KW - sequestration KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - nesosilicates KW - Tertiary KW - paleoenvironment KW - Neogene KW - steady-state processes KW - carbonates KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51790143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Dissolution+of+Columbia+River+Basalt+and+implications+of+CO+%28sub+2%29+sequestration&rft.au=Schaef%2C+H+Todd%3BReidel%2C+S+R%3BMcGrail%2C+B+Peter%3BAnonymous&rft.aulast=Schaef&rft.aufirst=H&rft.date=2004-04-01&rft.volume=36&rft.issue=4&rft.spage=32&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 56th annual meeting; Geological Society of America, Cordilleran Section, 100th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalts; carbon dioxide; carbonates; Cenozoic; climate change; Columbia River Basalt Group; flood basalts; geochemistry; Grande Ronde Basalt; igneous rocks; mineral composition; Miocene; Neogene; nesosilicates; olivine; olivine group; Oregon; orthosilicates; paleoclimatology; paleoenvironment; pH; Sentinel Bluffs Member; sequestration; silicates; solution; steady-state processes; Tertiary; United States; volcanic rocks; volcanism; Washington ER - TY - JOUR T1 - Compositional heterogeneity in Columbia River Basalt Group flows AN - 51789582; 2004-079610 AB - Columbia River Basalt Group flows always have been thought to be homogeneous because of the relatively narrow compositional range observed in many of the eruptions. Detailed studies over the past several years, however, have shown that many flows are highly variable, both laterally and vertically through a flow. The source of the heterogeneity has been suggested to result from initial magma compositional variability, in situ fractional crystallization and, more recently, compaction. The compositional variation of several Grande Ronde Basalt flows is examined from their dike systems to distal edges. The least variability was found in the Umtanum flow, which consists of approximately 5,000 km (super 3) of lava. The 10,000 km (super 3) Sentinel Bluffs Member has greater variability, especially in the Cohassett flow in central Washington. The Sentinel Bluffs Member has six regional compositional types. The Cohassett flow has compositional layers that are identical to four of the regional compositional types. The order of compositional zoning reflects the sequence of eruptions. Numerical modeling results suggest that in situ fractional crystallization or compaction cannot account for the variations observed in the Cohassett flow. The compositional types and the field relations are best explained by rapid changes in magma composition feeding regional flows. The compositional layering developed as new compositions were injected to form the Cohassett flow. JF - Abstracts with Programs - Geological Society of America AU - Reidel, Stephen P AU - Anonymous Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 98 PB - Geological Society of America (GSA), Boulder, CO VL - 36 IS - 4 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - Cohassett Flow KW - volcanic rocks KW - igneous rocks KW - Sentinel Bluffs Member KW - Cenozoic KW - mineral composition KW - basalts KW - heterogeneity KW - chemical composition KW - geochemistry KW - zoning KW - Washington KW - numerical models KW - lava flows KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Tertiary KW - Neogene KW - magmas KW - eruptions KW - petrography KW - fractional crystallization KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51789582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Compositional+heterogeneity+in+Columbia+River+Basalt+Group+flows&rft.au=Reidel%2C+Stephen+P%3BAnonymous&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2004-04-01&rft.volume=36&rft.issue=4&rft.spage=98&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 56th annual meeting; Geological Society of America, Cordilleran Section, 100th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chemical composition; Cohassett Flow; Columbia River Basalt Group; eruptions; flood basalts; fractional crystallization; geochemistry; Grande Ronde Basalt; heterogeneity; igneous rocks; lava flows; magmas; mineral composition; Miocene; Neogene; numerical models; petrography; Sentinel Bluffs Member; Tertiary; United States; volcanic rocks; Washington; zoning ER - TY - JOUR T1 - Biogeochemical transformation of Fe minerals in a petroleum-contaminated aquifer AN - 51730023; 2005-029997 AB - The Bemidji aquifer in Minnesota, USA is a well-studied site of subsurface petroleum contamination. The site contains an anoxic groundwater plume where soluble petroleum constituents serve as an energy source for a region of methanogenesis near the source and bacterial Fe(III) reduction further down gradient. Methanogenesis apparently begins when bioavailable Fe(III) is exhausted within the sediment. Past studies indicate that Geobacter species and Geothrix fermentens-like organisms are the primary dissimilatory Fe-reducing bacteria at this site. The Fe mineralogy of the pristine aquifer sediments and samples from the methanogenic (source) and Fe(III) reducing zones were characterized in this study to identify microbiologic changes to Fe valence and mineral distribution, and to identify whether new biogenic mineral phases had formed. Methods applied included X-ray diffraction; X-ray fluorescence (XRF); and chemical extraction; optical, transmission, and scanning electron microscopy; and Mossbauer spectroscopy. All of the sediments were low in total Fe content ( nearly equal 1%) and exhibited complex Fe-mineralogy. The bulk pristine sediment and its sand, silt, and clay-sized fractions were studied in detail. The pristine sediments contained Fe(II) and Fe(III) mineral phases. Ferrous iron represented approximately 50% of Fe (sub TOT) . The relative Fe(II) concentration increased in the sand fraction, and its primary mineralogic residence was clinochlore with minor concentrations found as a ferroan calcite grain cement in carbonate lithic fragments. Fe(III) existed in silicates (epidote, clinochlore, muscovite) and Fe(III) oxides of detrital and authigenic origin. The detrital Fe(III) oxides included hematite and goethite in the form of mm-sized nodular concretions and smaller-sized dispersed crystallites, and euhedral magnetite grains. Authigenic Fe(III) oxides increased in concentration with decreasing particle size through the silt and clay fraction. Chemical extraction and Mossbauer analysis indicated that this was a ferrihydrite like-phase. Quantitative mineralogic and Fe(II/III) ratio comparisons between the pristine and contaminated sediments were not possible because of textural differences. However, comparisons between the texturally-similar source (where bioavailable Fe(III) had been exhausted) and Fe(III) reducing zone sediments (where bioavailable Fe(III) remained) indicated that dispersed detrital, crystalline Fe(III) oxides and a portion of the authigenic, poorly crystalline Fe(III) oxide fraction had been depleted from the source zone sediment by microbiologic activity. Little or no effect of microbiologic activity was observed on silicate Fe(III). The presence of residual "ferrihydrite" in the most bioreduced, anoxic plume sediment (source) implied that a portion of the authigenic Fe(III) oxides were biologically inaccessible in weathered, lithic fragment interiors. Little evidence was found for the modern biogenesis of authigenic ferrous-containing mineral phases, perhaps with the exception of thin siderite or ferroan calcite surface precipitates on carbonate lithic fragments within source zone sediments. JF - Geochimica et Cosmochimica Acta AU - Zachara, John M AU - Kukkadapu, Ravi K AU - Gassman, Paul L AU - Dohnalkova, Alice C AU - Fredrickson, Jim K AU - Anderson, Todd Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 1791 EP - 1805 PB - Pergamon, Oxford VL - 68 IS - 8 SN - 0016-7037, 0016-7037 KW - United States KW - Geobacter KW - contaminant plumes KW - X-ray diffraction data KW - aliphatic hydrocarbons KW - bioavailability KW - iron KW - ground water KW - ferric iron KW - sediments KW - X-ray fluorescence spectra KW - crude oil KW - spectra KW - reduction KW - Beltrami County Minnesota KW - Mossbauer spectra KW - Minnesota KW - experimental studies KW - methane KW - iron minerals KW - clastic sediments KW - pollutants KW - pollution KW - alkanes KW - petroleum products KW - Bemidji Minnesota KW - ferrous iron KW - aquifers KW - case studies KW - organic compounds KW - biogenic processes KW - metals KW - bacteria KW - hydrocarbons KW - SEM data KW - Geothrix KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51730023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Biogeochemical+transformation+of+Fe+minerals+in+a+petroleum-contaminated+aquifer&rft.au=Zachara%2C+John+M%3BKukkadapu%2C+Ravi+K%3BGassman%2C+Paul+L%3BDohnalkova%2C+Alice+C%3BFredrickson%2C+Jim+K%3BAnderson%2C+Todd&rft.aulast=Zachara&rft.aufirst=John&rft.date=2004-04-01&rft.volume=68&rft.issue=8&rft.spage=1791&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2003.09.022 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 37 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aquifers; bacteria; Beltrami County Minnesota; Bemidji Minnesota; bioavailability; biogenic processes; case studies; clastic sediments; contaminant plumes; crude oil; experimental studies; ferric iron; ferrous iron; Geobacter; Geothrix; ground water; hydrocarbons; iron; iron minerals; metals; methane; Minnesota; Mossbauer spectra; organic compounds; petroleum products; pollutants; pollution; reduction; sediments; SEM data; spectra; United States; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1016/j.gca.2003.09.022 ER - TY - JOUR T1 - The fall, recovery, and classification of the Park Forest Meteorite AN - 50290718; 2004-056436 AB - On the night of March 26, 2003, a large meteorite broke up and fell upon the south suburbs of Chicago. The name Park Forest, for the village that is at the center of the strewnfield, has been approved by the nomenclature committee of the Meteoritical Society. Satellite data indicate that the bolide traveled from the southwest toward the northeast. The strewnfield has a southeast-northwest trend; however, this is probably due to the effects of strong westerly winds at high altitudes. Its very low (super 56) Co and very high (super 60) Co activities indicate that Park Forest had a preatmospheric mass that was at least approximately 900 kg and could have been as large as approximately 7X10 (super 3) kg, of which only approximately 30 kg have been recovered. The average compositions of olivine and low-Ca pyroxene, Fa (sub 24.7+ or -1.1) and Fs (sub 20.8+ or -0.7) , respectively, and its bulk oxygen isotopic composition, delta (super 18) O = +4.68 per mil, delta (super 17) O = +3.44 per mil, show that Park Forest is an L chondrite. The ferromagnesian minerals are well equilibrated, chondrules are easily recognized, and maskelynite is mostly < or =50 mu m across. Based on these observations, we classify Park Forest as type 5. The meteorite has been strongly shocked, and based on the presence of maskelynite, mosaicism and planar deformation features in olivine, undulatory extinction in pyroxene, and glassy veins, the shock stage is S5. The meteorite is a monomict breccia, consisting of light-colored, angular to rounded clasts in a very dark host. The light and dark lithologies have essentially identical mineral and oxygen isotopic compositions. Their striking difference in appearance is due to the presence of a fine, presence of a fine, pervasive network of sulfide veins in the dark lithology, resulting in very short optical path lengths. The dark lithology probably formed from the light lithology in an impact that formed a sulfide-rich melt and injected it into cracks. JF - Meteoritics & Planetary Science AU - Simon, S B AU - Grossman, L AU - Clayton, R N AU - Mayeda, T K AU - Schwade, J R AU - Sipiera, P P AU - Wacker, J F AU - Wadhwa, M Y1 - 2004/04// PY - 2004 DA - April 2004 SP - 625 EP - 634 PB - Meteoritical Society, Fayetteville, AR VL - 39 IS - 4 SN - 1086-9379, 1086-9379 KW - United States KW - nomenclature KW - ordinary chondrites KW - stony meteorites KW - oxygen KW - isotopes KW - meteorite flux KW - L chondrites KW - stable isotopes KW - meteorites KW - mineral composition KW - Chicago Illinois KW - occurrence KW - chondrites KW - geochemistry KW - Cook County Illinois KW - new meteorites KW - strewn fields KW - Illinois KW - isotope ratios KW - O-18/O-16 KW - veins KW - metamorphism KW - recovery KW - Park Forest Meteorite KW - planar deformation features KW - fragments KW - classification KW - petrography KW - sulfides KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50290718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+fall%2C+recovery%2C+and+classification+of+the+Park+Forest+Meteorite&rft.au=Simon%2C+S+B%3BGrossman%2C+L%3BClayton%2C+R+N%3BMayeda%2C+T+K%3BSchwade%2C+J+R%3BSipiera%2C+P+P%3BWacker%2C+J+F%3BWadhwa%2C+M&rft.aulast=Simon&rft.aufirst=S&rft.date=2004-04-01&rft.volume=39&rft.issue=4&rft.spage=625&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 20 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Chicago Illinois; chondrites; classification; Cook County Illinois; fragments; geochemistry; Illinois; isotope ratios; isotopes; L chondrites; metamorphism; meteorite flux; meteorites; mineral composition; new meteorites; nomenclature; O-18/O-16; occurrence; ordinary chondrites; oxygen; Park Forest Meteorite; petrography; planar deformation features; recovery; shock metamorphism; stable isotopes; stony meteorites; strewn fields; sulfides; United States; veins ER - TY - JOUR T1 - A comprehensive and systematic approach to developing and documenting conceptual models of contaminant release and migration at the Hanford Site AN - 20395331; 7436364 AB - The U. S. Department of Energy's Richland Operations Office has initiated efforts to adapt and implement the features, events, and processes (FEP) methodology used in scenario development for nuclear waste disposal programs to the environmental management and remediation problems facing the Hanford site. These efforts have shown that modification of the FEPs methodology to incorporate the use of process relationship diagrams (PRD) is effective in facilitating the development of conceptual models and selection of potentially relevant factors (i.e., FEPs) to be incorporated into a specific environmental assessment. In adopting this methodology for Hanford, a master PRD was created to provide a structure to identify these factors and to illustrate the relationships among them. The organizational framework of the master PRD was developed to match the organization of current Hanford site -wide environmental assessment activities and to facilitate screening of the FEPs relevant to the specific assessments needed for the site. JF - Stochastic Environmental Research and Risk Assessment AU - Last, G V AU - Rohay, V J AU - Schelling, F J AU - Bunn, AL AU - Delamare, MA AU - Dirkes, R L AU - Hildebr, R D AU - Morse, J G AU - Napier, BA AU - Riley, R G AU - Soler, L AU - Thorne, P D AD - Pacific Northwest National Laboratory (PNNL), 999, Richland, WA 99352, USA, george.last@pnl.gov Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 109 EP - 116 VL - 18 IS - 2 SN - 1436-3240, 1436-3240 KW - Pollution Abstracts KW - Risk assessment KW - Bioremediation KW - USA, Washington, Hanford KW - environmental assessment KW - Nuclear energy KW - Waste disposal KW - Contaminants KW - Environment management KW - USA, Washington, Hanford Site KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20395331?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Stochastic+Environmental+Research+and+Risk+Assessment&rft.atitle=A+comprehensive+and+systematic+approach+to+developing+and+documenting+conceptual+models+of+contaminant+release+and+migration+at+the+Hanford+Site&rft.au=Last%2C+G+V%3BRohay%2C+V+J%3BSchelling%2C+F+J%3BBunn%2C+AL%3BDelamare%2C+MA%3BDirkes%2C+R+L%3BHildebr%2C+R+D%3BMorse%2C+J+G%3BNapier%2C+BA%3BRiley%2C+R+G%3BSoler%2C+L%3BThorne%2C+P+D&rft.aulast=Last&rft.aufirst=G&rft.date=2004-04-01&rft.volume=18&rft.issue=2&rft.spage=109&rft.isbn=&rft.btitle=&rft.title=Stochastic+Environmental+Research+and+Risk+Assessment&rft.issn=14363240&rft_id=info:doi/10.1007%2Fs00477-003-0144-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-06-01 N1 - Last updated - 2015-04-01 N1 - SubjectsTermNotLitGenreText - Risk assessment; Bioremediation; Nuclear energy; environmental assessment; Waste disposal; Contaminants; Environment management; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1007/s00477-003-0144-6 ER - TY - BOOK T1 - Microbial and Enzyme Biotechnology: 21st Century Opportunities for Greenhouse Gas Mitigation AN - 20223279; 7180283 AB - Ever-increasing atmospheric concentrations of greenhouse gases (GHG) presents a carbon management challenge of global and century-scale proportions if adverse environmental, economic, and social impacts of climate change are to be avoided. Integrated assessment models suggest that significant technological intervention is needed to transform how we produce and consume energy. Current trends could lead before the end of the century to an atmospheric carbon dioxide (CO sub(2)) burden about twice today's approximately 370 vppm (750 Gt as C). This equates to the need to avoid GHG emissions totaling about 1500 Gt C over the current century if atmospheric concentrations are to be stabilized at a nominal 550 vppm, approximately twice pre-industrial concentrations (280 vppm) (Edmonds and Clarke, this volume). JF - Applications of Biotechnology to Mitigation of Greenhouse Warming. Proceedings of the St. Michaels II Workshop, April 2003 AU - Metting, F B AU - Scott, MJ AU - Benemann, J AU - Greenbaum, E AU - Seibert, M AU - Spormann, A AU - Yukawa, H AU - Houghton, J A2 - Rosenberg, NJ A2 - Metting, FB A2 - Izaurralde, RC (eds) Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 22 EP - 136 PB - Battelle Press, 505 King Avenue Columbus OH 43201 USA SN - 1574771418 KW - Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Meteorological & Geoastrophysical Abstracts; Biotechnology and Bioengineering Abstracts KW - Environmental economics KW - Climatic changes KW - social impact KW - Models KW - mitigation KW - Carbon KW - intervention KW - Economics KW - Climate models KW - Conferences KW - Enzymes KW - Greenhouses KW - Books KW - Energy KW - Global warming KW - Carbon dioxide KW - Greenhouse gases KW - Biotechnology KW - W 30925:Genetic Engineering KW - P 0000:AIR POLLUTION KW - M2 551.583:Variations (551.583) KW - A 01490:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20223279?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Metting%2C+F+B%3BScott%2C+MJ%3BBenemann%2C+J%3BGreenbaum%2C+E%3BSeibert%2C+M%3BSpormann%2C+A%3BYukawa%2C+H%3BHoughton%2C+J&rft.aulast=Metting&rft.aufirst=F&rft.date=2004-04-01&rft.volume=&rft.issue=&rft.spage=115&rft.isbn=1574771418&rft.btitle=Microbial+and+Enzyme+Biotechnology%3A+21st+Century+Opportunities+for+Greenhouse+Gas+Mitigation&rft.title=Microbial+and+Enzyme+Biotechnology%3A+21st+Century+Opportunities+for+Greenhouse+Gas+Mitigation&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 ER - TY - BOOK T1 - Bioconversion and Biorefineries of the Future AN - 20221903; 7180282 AB - Although the environmental, economic, and social impacts are still being debated, it is clear that the atmospheric concentrations of greenhouse gases (GHG) are increasing. The atmosphere in 2000 held about 774 Pg (774 billion metric tons) of carbon (C) as carbon dioxide (CO sub(2)), corresponding to an average concentration of 369 parts per million by volume (vppm) (Marland & Boden, 2001). At the present rate of emission, the projected total will double by the end of this century. To achieve the goal of stabilizing the total carbon in the atmosphere at about 550 vppm, it will be necessary to reduce GHG emissions. The USA alone is expected to release 1.8 Pg of carbon in 2010 and 2.1 Pg of carbon in 2020, about 25% of the world total (EIA 2000). To maintain the target carbon dioxide concentration through the end of this century, currently anticipated emissions must be reduced by 1500 Pg C (Edmonds and Clarke, this volume). JF - Applications of Biotechnology to Mitigation of Greenhouse Warming. Proceedings of the St. Michaels II Workshop, April 2003 AU - Lasure, L L AU - Zhang, M A2 - Rosenberg, NJ A2 - Metting, FB A2 - Izaurralde, RC (eds) Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 15 EP - 109 PB - Battelle Press, 505 King Avenue Columbus OH 43201 USA SN - 1574771418 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Environmental economics KW - social impact KW - Atmosphere KW - Atmospheric pollution by motor vehicles KW - USA KW - mitigation KW - environmental impact assessment KW - Emissions KW - Global warming KW - Carbon dioxide KW - Greenhouse gases KW - Biotechnology KW - P 0000:AIR POLLUTION KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20221903?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Pollution+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Lasure%2C+L+L%3BZhang%2C+M&rft.aulast=Lasure&rft.aufirst=L&rft.date=2004-04-01&rft.volume=&rft.issue=&rft.spage=95&rft.isbn=1574771418&rft.btitle=Bioconversion+and+Biorefineries+of+the+Future&rft.title=Bioconversion+and+Biorefineries+of+the+Future&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 ER - TY - BOOK T1 - Biotechnology and Climate Change: An Introductory Essay AN - 19455711; 7180278 AB - Global climate change is one of the most critical challenges facing the world in the 21st century. Addressing climate change will involve a portfolio of responses including research to improve scientific understanding of climate change processes, adaptation to climate changes, emissions mitigation, and technology development and deployment. The role of technology is just beginning to be understood. Technology can and will play a major role in addressing the long-term risks of climate change. Technology development, and particularly energy technology development, will shape both the scope of the climate change problem and the cost of mitigation. JF - Applications of Biotechnology to Mitigation of Greenhouse Warming. Proceedings of the St. Michaels II Workshop, April 2003 AU - Edmonds, JA AU - Clarke, J F A2 - Rosenberg, NJ A2 - Metting, FB A2 - Izaurralde, RC (eds) Y1 - 2004/04// PY - 2004 DA - Apr 2004 SP - 16 PB - Battelle Press, 505 King Avenue Columbus OH 43201 USA SN - 1574771418 KW - Meteorological & Geoastrophysical Abstracts; Biotechnology and Bioengineering Abstracts KW - Adaptations KW - Conferences KW - Energy KW - Climate change KW - Climatic changes KW - Global warming KW - Greenhouses KW - M2 551.583:Variations (551.583) KW - W 30970:Book & Conference Notices UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19455711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Biotechnology+Research+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Edmonds%2C+JA%3BClarke%2C+J+F&rft.aulast=Edmonds&rft.aufirst=JA&rft.date=2004-04-01&rft.volume=&rft.issue=&rft.spage=1&rft.isbn=1574771418&rft.btitle=Biotechnology+and+Climate+Change%3A+An+Introductory+Essay&rft.title=Biotechnology+and+Climate+Change%3A+An+Introductory+Essay&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2015-04-01 ER - TY - JOUR T1 - Effects of trace contaminants on catalytic processing of biomass-derived feedstocks AN - 954575916; 13858155 AB - Model compound testing was conducted in a batch reactor to evaluate the effects of trace contaminant components on catalytic hydrogenation of sugars. Trace components are potential catalyst poisons when processing biomass feedstocks to value-added chemical products. Trace components include inorganic elements such as alkali metals and alkaline earths, phosphorus, sulfur, aluminum, silicon, chloride, or transition metals. Protein components in biomass feedstocks can lead to formation of peptide fractions (from hydrolysis) or ammonium ions (from more severe breakdown), both of which might interfere with catalysis. The batch reactor tests were performed in a 300-mL stirred autoclave, with multiple liquid samples withdrawn over the period of the experiment. Evaluation of these test results suggest that most of the catalyst inhibition is related to nitrogen-containing components. JF - Applied Biochemistry and Biotechnology AU - Elliott, Douglas C AU - Peterson, Keith L AU - Muzatko, Danielle S AU - Alderson, Eric V AU - Hart, Todd R AU - Neuenschwander, Gary G AD - Pacific Northwest National Laboratory, PO Box 999, 99352, Richland, WA, dougc.elliott@pnl.gov Y1 - 2004/03// PY - 2004 DA - March 2004 SP - 807 EP - 825 PB - Humana Press Inc., 999 Riverview Dr., Ste. 208 Totowa NJ 07512 USA VL - 115 IS - 1-3 SN - 0273-2289, 0273-2289 KW - Biotechnology and Bioengineering Abstracts KW - Sulfur KW - Ions KW - Sugar KW - Ammonium KW - Silicon KW - Heavy metals KW - Phosphorus KW - Transition metals KW - Chloride KW - Hydrogenation KW - Biomass KW - Hydrolysis KW - Models KW - Aluminum KW - Proteins KW - Catalysts KW - Alkalis KW - Contaminants KW - Catalysis KW - W 30950:Waste Treatment & Pollution Clean-up UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/954575916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Biochemistry+and+Biotechnology&rft.atitle=Effects+of+trace+contaminants+on+catalytic+processing+of+biomass-derived+feedstocks&rft.au=Elliott%2C+Douglas+C%3BPeterson%2C+Keith+L%3BMuzatko%2C+Danielle+S%3BAlderson%2C+Eric+V%3BHart%2C+Todd+R%3BNeuenschwander%2C+Gary+G&rft.aulast=Elliott&rft.aufirst=Douglas&rft.date=2004-03-01&rft.volume=115&rft.issue=1-3&rft.spage=807&rft.isbn=&rft.btitle=&rft.title=Applied+Biochemistry+and+Biotechnology&rft.issn=02732289&rft_id=info:doi/10.1385%2FABAB%3A115%3A1-3%3A0807 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Sulfur; Ammonium; Sugar; Ions; Silicon; Heavy metals; Phosphorus; Chloride; Transition metals; Hydrogenation; Biomass; Hydrolysis; Models; Aluminum; Proteins; Catalysts; Contaminants; Alkalis; Catalysis DO - http://dx.doi.org/10.1385/ABAB:115:1-3:0807 ER - TY - JOUR T1 - Catalytic hydrogenation of glutamic acid AN - 888092543; 13858159 AB - Technology to convert biomass into chemical building blocks provides an opportunity to displace fossil fuels and increase the economic viability of biorefineries. Coupling fermentation capability with aqueous-phase catalysis provides novel routes to monomers and chemicals, including those not accessible from petrochemical routes. Glutamic acid provides a platform to numerous compounds through thermochemical approaches including hydrogenation, cyclization, decarboxylation, and deamination. Hydrogenation of amino acids also provides access to chiral compounds with high enantiopurity. This article detals aqueous-phase hydrogenation reactions that we have developed that lead to valuable chemical intermediates from glutamic acid. In addition, super(13)C nuclear magnetic resonance and matrix-assisted laser desorption ionization mass spectral data are presented that provide a mechanistic picture of the reactions. The results show that hydrogenation of glutamic acid has unique characteristics from other amino acids and that paradigms in the literature do not hold up for this transformation. JF - Applied Biochemistry and Biotechnology AU - Holladay, Johnathan E AU - Werpy, Todd A AU - Muzatko, Danielle S AD - Pacific Northwest National Laboratory, MSIN: K2-12, 902 Battelle Boulevard, PO Box 999, 99352, Richland, WA, john.holladay@pnl.gov Y1 - 2004/03// PY - 2004 DA - Mar 2004 SP - 857 EP - 869 PB - Humana Press Inc., 999 Riverview Dr., Ste. 208 Totowa NJ 07512 USA VL - 115 IS - 1-3 SN - 0273-2289, 0273-2289 KW - Biotechnology and Bioengineering Abstracts KW - Transformation KW - Data processing KW - Amino acids KW - Fossil fuels KW - Fermentation KW - Deamination KW - Hydrogenation KW - Biomass KW - Monomers KW - Economics KW - N.M.R. KW - Lasers KW - Glutamic acid KW - Ionization KW - Decarboxylation KW - Catalysis KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888092543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Biochemistry+and+Biotechnology&rft.atitle=Catalytic+hydrogenation+of+glutamic+acid&rft.au=Holladay%2C+Johnathan+E%3BWerpy%2C+Todd+A%3BMuzatko%2C+Danielle+S&rft.aulast=Holladay&rft.aufirst=Johnathan&rft.date=2004-03-01&rft.volume=115&rft.issue=1-3&rft.spage=857&rft.isbn=&rft.btitle=&rft.title=Applied+Biochemistry+and+Biotechnology&rft.issn=02732289&rft_id=info:doi/10.1385%2FABAB%3A115%3A1-3%3A0857 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2013-12-04 N1 - SubjectsTermNotLitGenreText - Transformation; Amino acids; Data processing; Fossil fuels; Fermentation; Deamination; Hydrogenation; Biomass; Monomers; Economics; Lasers; N.M.R.; Glutamic acid; Ionization; Decarboxylation; Catalysis DO - http://dx.doi.org/10.1385/ABAB:115:1-3:0857 ER - TY - JOUR T1 - The role of the calcium-sensing receptor in cancer. AN - 72026102; 15200153 AB - The extracellular calcium-sensing receptor (CaR) is a versatile sensor of small, polycationic molecules ranging from Ca2+ and Mg2+ through polyarginine, spermine, and neomycin. The sensitivity of the CaR to changes in extracellular Ca2+ over the range of 0.05-5 mM positions the CaR as a key mediator of cellular responses to physiologically relevant changes in extracellular Ca2+. For many cell types, including intestinal epithelial cells, breast epithelial cells, keratinocytes, and ovarian surface epithelial cells, changes in extracellular Ca2+ concentration over this range can switch the cellular behaviour from proliferation to terminal differentiation or quiescence. As cancer is predominantly a disease of disordered balance between proliferation, differentiation, and apoptosis, disruptions in the function of the CaR could contribute to the progression of neoplastic disease. Loss of the growth suppressing effects of elevated extracellular Ca2+ have been demonstrated in parathyroid hyperplasias and in colon carcinoma, and have been correlated with changes in the level of CaR expression. Activation of the CaR has also been linked to increased expression and secretion of PTHrP (parathyroid hormone-related peptide), a primary causal factor in hypercalcemia of malignancy and a contributor to metastatic processes involving bone. Although mutation of the CaR does not appear to be an early event in carcinogenesis, loss or upregulation of normal CaR function can contribute to several aspects of neoplastic progression, so that therapeutic strategies directed at the CaR could potentially serve a supportive function in cancer management. JF - Cell calcium AU - Rodland, Karin D AD - Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA 99352, USA. Y1 - 2004/03// PY - 2004 DA - March 2004 SP - 291 EP - 295 VL - 35 IS - 3 SN - 0143-4160, 0143-4160 KW - Parathyroid Hormone-Related Protein KW - 0 KW - Receptors, Calcium-Sensing KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Breast Neoplasms -- genetics KW - Ovarian Neoplasms -- metabolism KW - Colonic Neoplasms -- genetics KW - Colonic Neoplasms -- physiopathology KW - Breast Neoplasms -- physiopathology KW - Ovarian Neoplasms -- genetics KW - Humans KW - Breast Neoplasms -- metabolism KW - Homeostasis KW - Ovarian Neoplasms -- physiopathology KW - Calcium -- metabolism KW - Gene Expression Regulation, Neoplastic KW - Colonic Neoplasms -- metabolism KW - Parathyroid Hormone-Related Protein -- secretion KW - Female KW - Receptors, Calcium-Sensing -- physiology KW - Receptors, Calcium-Sensing -- genetics KW - Neoplasms -- physiopathology KW - Neoplasms -- genetics KW - Neoplasms -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72026102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Cell+calcium&rft.atitle=The+role+of+the+calcium-sensing+receptor+in+cancer.&rft.au=Rodland%2C+Karin+D&rft.aulast=Rodland&rft.aufirst=Karin&rft.date=2004-03-01&rft.volume=35&rft.issue=3&rft.spage=291&rft.isbn=&rft.btitle=&rft.title=Cell+calcium&rft.issn=01434160&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-07-13 N1 - Date created - 2004-06-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Survival Estimates for Juvenile Fish Subjected to a Laboratory-Generated Shear Environment AN - 17763384; 6049239 AB - Juvenile rainbow trout Oncorhynchus mykiss and steelhead (anadromous rainbow trout), fall (age-0 and age-1) and spring Chinook salmon O. tshawytscha, and American shad Alosa sapidissima were exposed to shear environments in the laboratory to establish injury-mortality thresholds based on estimates of strain rate. Fish were exposed to a submerged jet having exit velocities of 0 to 21.3 m/s, providing estimated exposure strain rates up to 1,185/s. Turbulence intensity in the area of the jet where fish were subjected to shear was minimal, varying from 3% to 6% of the estimated exposure strain rate. Injuries and mortalities increased for all species of fish at strain rates greater than 495/s. American shad were the most susceptible to injury after being subjected headfirst to a shear environment, while steelhead and rainbow trout were the most resistant. There was no apparent size-related trend in susceptibility to high shear except that age-0 fall Chinook salmon were more resistant to shear environments than age-1 fall Chinook salmon. All groups of test fish exposed headfirst to high-shear environments had higher injury- mortality rates than fish introduced tailfirst at similar strain rates. These results document the relationship between fish injury and a fluid force present at hydroelectric facilities and provide biological specifications for improving fish passage and survival. JF - Transactions of the American Fisheries Society AU - Neitzel, DA AU - Dauble, D D AU - Richmond, M C AU - Guensch, G R AU - Mueller, R P AU - Abernethy, C S AU - Amidan, Brett AD - Pacific Northwest National Laboratory, Post Office Box 999, Richland, Washington 99352, USA Y1 - 2004/03// PY - 2004 DA - March 2004 SP - 447 EP - 454 PB - American Fisheries Society, 5410 Grosvenor Ln. Ste. 110 Bethesda MD 20814-2199 USA VL - 133 IS - 2 SN - 0002-8487, 0002-8487 KW - American shad KW - Chinook salmon KW - Rainbow trout KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Shear KW - Mortality KW - Biological stress KW - Juveniles KW - Injuries KW - Anadromous species KW - Survival KW - Oncorhynchus mykiss KW - Strains KW - Oncorhynchus tshawytscha KW - Alosa sapidissima KW - Fishery management KW - Fluid dynamics KW - Turbulence KW - Mortality causes KW - D 04700:Management KW - Q1 08346:Physiology, biochemistry, biophysics KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17763384?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transactions+of+the+American+Fisheries+Society&rft.atitle=Survival+Estimates+for+Juvenile+Fish+Subjected+to+a+Laboratory-Generated+Shear+Environment&rft.au=Neitzel%2C+DA%3BDauble%2C+D+D%3BRichmond%2C+M+C%3BGuensch%2C+G+R%3BMueller%2C+R+P%3BAbernethy%2C+C+S%3BAmidan%2C+Brett&rft.aulast=Neitzel&rft.aufirst=DA&rft.date=2004-03-01&rft.volume=133&rft.issue=2&rft.spage=447&rft.isbn=&rft.btitle=&rft.title=Transactions+of+the+American+Fisheries+Society&rft.issn=00028487&rft_id=info:doi/10.1577%2F02-021 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Shear; Juveniles; Biological stress; Injuries; Anadromous species; Fluid dynamics; Survival; Strains; Mortality causes; Mortality; Fishery management; Turbulence; Alosa sapidissima; Oncorhynchus mykiss; Oncorhynchus tshawytscha DO - http://dx.doi.org/10.1577/02-021 ER - TY - JOUR T1 - Microscale distribution of cesium sorbed to biotite and muscovite. AN - 71696527; 14998013 AB - Individual 1-3 mm biotite and muscovite clasts from Hanford sediment were contacted with 0.08 M CsNO3. They were examined using electron or X-ray microprobe methods, as intact specimens or sectioned perpendicular to their basal planes. Cs+ was observed to preferentially sorb to mica edges, steps on mica surfaces, or fractured regions. The localization of Cs conformed to hypothesized strong binding to frayed edge sites in preference to sites on basal planes. In section, Cs+ was found to penetrate the mica interior, forming discrete zones of concentration, particularly in muscovite. In biotite, Cs was more abundant, permeating the clasts, but also forming discrete zones of higher concentration. Concentrated Cs on both clast edges and within clast interiors corresponded to microscopic but relatively extensive zones where K was depleted. The localization of sorbed Cs in areas where K was depleted suggested that weathering reactions had caused the formation of frayed edge sites within the micas. Cs+ accessed crystal interiors by diffusion along channels following crystal defects, cracks, or partings where pore fluids had previously migrated to form the interior alteration zones. On the nanometer scale, areas with localized Cs were disrupted, confirming that frayed edge sites were developed in clast interiors. JF - Environmental science & technology AU - McKinley, James P AU - Zachara, John M AU - Heald, Steven M AU - Dohnalkova, Alice AU - Newville, Matthew G AU - Sutton, Steve R AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. james.mckinley@pnl.gov Y1 - 2004/02/15/ PY - 2004 DA - 2004 Feb 15 SP - 1017 EP - 1023 VL - 38 IS - 4 SN - 0013-936X, 0013-936X KW - Aluminum Silicates KW - 0 KW - Ferrous Compounds KW - Soil Pollutants, Radioactive KW - Water Pollutants, Radioactive KW - biotite KW - 1302-27-8 KW - Cesium KW - 1KSV9V4Y4I KW - Index Medicus KW - Environmental Monitoring KW - Geologic Sediments -- chemistry KW - Porosity KW - Adsorption KW - Cesium -- analysis KW - Aluminum Silicates -- chemistry KW - Water Pollutants, Radioactive -- analysis KW - Ferrous Compounds -- chemistry KW - Soil Pollutants, Radioactive -- analysis KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71696527?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Microscale+distribution+of+cesium+sorbed+to+biotite+and+muscovite.&rft.au=McKinley%2C+James+P%3BZachara%2C+John+M%3BHeald%2C+Steven+M%3BDohnalkova%2C+Alice%3BNewville%2C+Matthew+G%3BSutton%2C+Steve+R&rft.aulast=McKinley&rft.aufirst=James&rft.date=2004-02-15&rft.volume=38&rft.issue=4&rft.spage=1017&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-04-21 N1 - Date created - 2004-03-04 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Glucose Biosensors Based on Carbon Nanotube Nanoelectrode Ensembles AN - 17679329; 5980427 AB - This paper describes the development of glucose biosensors based on carbon nanotube (CNT) nanoelectrode ensembles (NEEs) for the selective detection of glucose. Glucose oxidase was covalently immobilized on CNT NEEs via carbodiimide chemistry by forming amide linkages between their amine residues and carboxylic acid groups on the CNT tips. The catalytic reduction of hydrogen peroxide liberated from the enzymatic reaction of glucose oxidase upon the glucose and oxygen on CNT NEEs leads to the selective detection of glucose. The biosensor effectively performs a selective electrochemical analysis of glucose in the presence of common interferents (e.g., acetaminophen, uric and ascorbic acids), avoiding the generation of an overlapping signal from such interferers. Such an operation eliminates the need for permselective membrane barriers or artificial electron mediators, thus greatly simplifying the sensor design and fabrication. JF - Nano Letters AU - Lin, Yuehe AU - Lu, Fang AU - Tu, Yi AU - Ren, Zhifeng AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352, USA Y1 - 2004/02/11/ PY - 2004 DA - 2004 Feb 11 SP - 191 EP - 195 VL - 4 IS - 2 SN - 1530-6984, 1530-6984 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W4 230:Biosensors, Bioelectronics & Bioindicators KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17679329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nano+Letters&rft.atitle=Glucose+Biosensors+Based+on+Carbon+Nanotube+Nanoelectrode+Ensembles&rft.au=Lin%2C+Yuehe%3BLu%2C+Fang%3BTu%2C+Yi%3BRen%2C+Zhifeng&rft.aulast=Lin&rft.aufirst=Yuehe&rft.date=2004-02-11&rft.volume=4&rft.issue=2&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Nano+Letters&rft.issn=15306984&rft_id=info:doi/10.1021%2Fn10347233 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-04-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1021/n10347233 ER - TY - JOUR T1 - Geochemical evolution of highly alkaline and saline tank waste plumes during seepage through vadose zone sediments AN - 51727923; 2005-031865 AB - Leakage of highly saline and alkaline radioactive waste from storage tanks into underlying sediments is a serious environmental problem at the Hanford Site in Washington State. This study focuses on geochemical evolution of tank waste plumes resulting from interactions between the waste solution and sediment. A synthetic tank waste solution was infused into unsaturated Hanford sediment columns (0.2, 0.6, and 2 m) maintained at 70 degrees C to simulate the field contamination process. Spatially and temporally resolved geochemical profiles of the waste plume were obtained. Thorough OH (super -) neutralization (from an initial pH 14 down to 6.3) was observed. Three broad zones of pore solutions were identified to categorize the dominant geochemical reactions: the silicate dissolution zone (pH>10), pH-neutralized zone (pH 10 to 6.5), and displaced native sediment pore water (pH 6.5 to 8). Elevated concentrations of Si, Fe, and K in plume fluids and their depleted concentrations in plume sediments reflected dissolution of primary minerals within the silicate dissolution zone. The very high Na concentrations in the waste solution resulted in rapid and complete cation exchange, reflected in high concentrations of Ca and Mg at the plume front. The plume-sediment profiles also showed deposition of hydrated solids and carbonates. Fair correspondence was obtained between these results and analyses of field borehole samples from a waste plume at the Hanford Site. Results of this study provide a well-defined framework for understanding waste plumes in the more complex field setting and for understanding geochemical factors controlling transport of contaminant species carried in waste solutions that leaked from single-shell storage tanks in the past. JF - Geochimica et Cosmochimica Acta AU - Wan, Jiamin AU - Tokunaga, Tetsu K AU - Larsen, Joern T AU - Serne, R Jeff Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 491 EP - 502 PB - Pergamon, Oxford VL - 68 IS - 3 SN - 0016-7037, 0016-7037 KW - United States KW - contaminant plumes KW - unsaturated zone KW - simulation KW - seepage KW - radioactive waste KW - sediments KW - geochemistry KW - synthetic materials KW - saline composition KW - pH KW - soils KW - experimental studies KW - Washington KW - underground storage KW - pollutants KW - pollution KW - Hanford Site KW - hydrochemistry KW - alkalic composition KW - underground installations KW - theoretical models KW - waste disposal KW - pore water KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51727923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Geochemical+evolution+of+highly+alkaline+and+saline+tank+waste+plumes+during+seepage+through+vadose+zone+sediments&rft.au=Wan%2C+Jiamin%3BTokunaga%2C+Tetsu+K%3BLarsen%2C+Joern+T%3BSerne%2C+R+Jeff&rft.aulast=Wan&rft.aufirst=Jiamin&rft.date=2004-02-01&rft.volume=68&rft.issue=3&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2803%2900482-4 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 20 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkalic composition; contaminant plumes; experimental studies; geochemistry; Hanford Site; hydrochemistry; pH; pollutants; pollution; pore water; radioactive waste; saline composition; sediments; seepage; simulation; soils; synthetic materials; theoretical models; underground installations; underground storage; United States; unsaturated zone; Washington; waste disposal DO - http://dx.doi.org/10.1016/S0016-7037(03)00482-4 ER - TY - JOUR T1 - Changes in snowmelt runoff timing in Western North America under a "business as usual" climate change scenario AN - 51510162; 2007-007208 JF - Climatic Change AU - Stewart, Iris T AU - Cayan, Daniel R AU - Dettinger, Michael D A2 - Pennell, William A2 - Barnett, Tim Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 217 EP - 232 PB - Springer, Dordrecht VL - 62 IS - 1-3 SN - 0165-0009, 0165-0009 KW - United States KW - North America KW - geologic hazards KW - water management KW - Parallel Climate Model KW - western North America KW - climate change KW - modern KW - Canada KW - Western U.S. KW - regional KW - future KW - snow KW - runoff KW - floods KW - Western Canada KW - seasonal variations KW - water resources KW - Rocky Mountains KW - climate KW - meltwater KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51510162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Changes+in+snowmelt+runoff+timing+in+Western+North+America+under+a+%22business+as+usual%22+climate+change+scenario&rft.au=Stewart%2C+Iris+T%3BCayan%2C+Daniel+R%3BDettinger%2C+Michael+D&rft.aulast=Stewart&rft.aufirst=Iris&rft.date=2004-02-01&rft.volume=62&rft.issue=1-3&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - Canada; climate; climate change; floods; future; geologic hazards; meltwater; modern; North America; Parallel Climate Model; regional; Rocky Mountains; runoff; seasonal variations; snow; United States; water management; water resources; Western Canada; western North America; Western U.S. ER - TY - JOUR T1 - The effects of climate change on water resources in the West AN - 51509390; 2007-007204 JF - Climatic Change A2 - Pennell, William A2 - Barnett, Tim Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 1 EP - 418 PB - Springer, Dordrecht VL - 62 IS - 1-3 SN - 0165-0009, 0165-0009 KW - United States KW - water supply KW - Western U.S. KW - climate effects KW - water resources KW - climate change KW - climate KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51509390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2004-02-01&rft.volume=&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=The+effects+of+climate+change+on+water+resources+in+the+West&rft.title=The+effects+of+climate+change+on+water+resources+in+the+West&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers within scope are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - climate; climate change; climate effects; United States; water resources; water supply; Western U.S. ER - TY - JOUR T1 - Mitigating the effects of climate change on the water resources of the Columbia River basin AN - 51509234; 2007-007205 JF - Climatic Change AU - Payne, Jeffrey T AU - Wood, Andrew W AU - Hamlet, Alan F AU - Palmer, Richard N AU - Lettenmaier, Dennis P A2 - Pennell, William A2 - Barnett, Tim Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 233 EP - 256 PB - Springer, Dordrecht VL - 62 IS - 1-3 SN - 0165-0009, 0165-0009 KW - United States KW - data processing KW - coupling KW - atmospheric precipitation KW - climate change KW - Oregon KW - mitigation KW - hydrologic cycle KW - future KW - Columbia River basin KW - snow KW - digital simulation KW - climate effects KW - greenhouse effect KW - Nevada KW - Idaho KW - general circulation models KW - Washington KW - reservoirs KW - prediction KW - Parallel Climate Model KW - British Columbia KW - Montana KW - gases KW - Wyoming KW - Canada KW - regional KW - Western Canada KW - Utah KW - seasonal variations KW - land-atmosphere-ocean models KW - water resources KW - meltwater KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51509234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Mitigating+the+effects+of+climate+change+on+the+water+resources+of+the+Columbia+River+basin&rft.au=Payne%2C+Jeffrey+T%3BWood%2C+Andrew+W%3BHamlet%2C+Alan+F%3BPalmer%2C+Richard+N%3BLettenmaier%2C+Dennis+P&rft.aulast=Payne&rft.aufirst=Jeffrey&rft.date=2004-02-01&rft.volume=62&rft.issue=1-3&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - SuppNotes - Joint Institute for the Study of the Atmosphere and Ocean (JISAO) Contrib. No. 922 N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; British Columbia; Canada; climate change; climate effects; Columbia River basin; coupling; data processing; digital simulation; future; gases; general circulation models; greenhouse effect; hydrologic cycle; Idaho; land-atmosphere-ocean models; meltwater; mitigation; Montana; Nevada; Oregon; Parallel Climate Model; prediction; regional; reservoirs; seasonal variations; snow; United States; Utah; Washington; water resources; Western Canada; Wyoming ER - TY - JOUR T1 - Potential implications of PCM climate change scenarios for Sacramento-San Joaquin River basin hydrology and water resources AN - 51508807; 2007-007206 JF - Climatic Change AU - Vanrheenen, Nathan T AU - Wood, Andrew W AU - Palmer, Richard N AU - Lettenmaier, Dennis P A2 - Pennell, William A2 - Barnett, Tim Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 257 EP - 281 PB - Springer, Dordrecht VL - 62 IS - 1-3 SN - 0165-0009, 0165-0009 KW - United States KW - general circulation models KW - water management KW - Parallel Climate Model KW - climate change KW - modern KW - Central Valley KW - California KW - Sacramento Basin KW - infiltration KW - future KW - snow KW - San Joaquin Basin KW - drainage basins KW - climate effects KW - seasonal variations KW - water resources KW - climate KW - meltwater KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51508807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Potential+implications+of+PCM+climate+change+scenarios+for+Sacramento-San+Joaquin+River+basin+hydrology+and+water+resources&rft.au=Vanrheenen%2C+Nathan+T%3BWood%2C+Andrew+W%3BPalmer%2C+Richard+N%3BLettenmaier%2C+Dennis+P&rft.aulast=Vanrheenen&rft.aufirst=Nathan&rft.date=2004-02-01&rft.volume=62&rft.issue=1-3&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - Joint Institute for the Study of the Atmosphere and Ocean (JISAO) Contrib. No. 923 N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - California; Central Valley; climate; climate change; climate effects; drainage basins; future; general circulation models; infiltration; meltwater; modern; Parallel Climate Model; Sacramento Basin; San Joaquin Basin; seasonal variations; snow; United States; water management; water resources ER - TY - JOUR T1 - The effects of climate change on the hydrology and water resources of the Colorado River basin AN - 51508550; 2007-007209 JF - Climatic Change AU - Christensen, Niklas S AU - Wood, Andrew W AU - Voisin, Nathalie AU - Lettenmaier, Dennis P AU - Palmer, Richard N A2 - Pennell, William A2 - Barnett, Tim Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 337 EP - 363 PB - Springer, Dordrecht VL - 62 IS - 1-3 SN - 0165-0009, 0165-0009 KW - United States KW - water storage KW - Colorado River basin KW - water management KW - atmospheric precipitation KW - New Mexico KW - climate change KW - modern KW - hydrologic cycle KW - climate effects KW - Nevada KW - climate KW - hydrology KW - reservoirs KW - Colorado Plateau KW - Wyoming KW - Mexico KW - streamflow KW - planning KW - runoff KW - Arizona KW - Utah KW - Colorado KW - water resources KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51508550?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=The+effects+of+climate+change+on+the+hydrology+and+water+resources+of+the+Colorado+River+basin&rft.au=Christensen%2C+Niklas+S%3BWood%2C+Andrew+W%3BVoisin%2C+Nathalie%3BLettenmaier%2C+Dennis+P%3BPalmer%2C+Richard+N&rft.aulast=Christensen&rft.aufirst=Niklas&rft.date=2004-02-01&rft.volume=62&rft.issue=1-3&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - Arizona; atmospheric precipitation; climate; climate change; climate effects; Colorado; Colorado Plateau; Colorado River basin; hydrologic cycle; hydrology; Mexico; modern; Nevada; New Mexico; planning; reservoirs; runoff; streamflow; United States; Utah; water management; water resources; water storage; Wyoming ER - TY - JOUR T1 - Simulated hydrologic responses to climate variations and change in the Merced, Carson, and American River Basins, Sierra Nevada, California, 1900-2099 AN - 51508108; 2007-007207 JF - Climatic Change AU - Dettinger, Michael D AU - Cayan, Daniel R AU - Meyer, Mary K AU - Jeton, Anne E A2 - Pennell, William A2 - Barnett, Tim Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 283 EP - 317 PB - Springer, Dordrecht VL - 62 IS - 1-3 SN - 0165-0009, 0165-0009 KW - United States KW - Sierra Nevada KW - data processing KW - global change KW - climate change KW - modern KW - California KW - hydrologic cycle KW - American River basin KW - snow KW - digital simulation KW - drainage basins KW - diurnal variations KW - Carson River basin KW - climate KW - global warming KW - Placer County California KW - hydrology KW - general circulation models KW - monthly variations KW - annual variations KW - Parallel Climate Model KW - Mariposa County California KW - runoff KW - Yosemite National Park KW - Merced River basin KW - meltwater KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51508108?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Simulated+hydrologic+responses+to+climate+variations+and+change+in+the+Merced%2C+Carson%2C+and+American+River+Basins%2C+Sierra+Nevada%2C+California%2C+1900-2099&rft.au=Dettinger%2C+Michael+D%3BCayan%2C+Daniel+R%3BMeyer%2C+Mary+K%3BJeton%2C+Anne+E&rft.aulast=Dettinger&rft.aufirst=Michael&rft.date=2004-02-01&rft.volume=62&rft.issue=1-3&rft.spage=283&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 3 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - American River basin; annual variations; California; Carson River basin; climate; climate change; data processing; digital simulation; diurnal variations; drainage basins; general circulation models; global change; global warming; hydrologic cycle; hydrology; Mariposa County California; meltwater; Merced River basin; modern; monthly variations; Parallel Climate Model; Placer County California; runoff; Sierra Nevada; snow; United States; Yosemite National Park ER - TY - JOUR T1 - Role of competitive cation exchange on chromatographic displacement of cesium in the vadose zone beneath the Hanford S/SX tank farm AN - 51127255; 2005-061711 AB - Migration of radionuclides under the SX-tank farm at the Hanford nuclear waste complex involves interaction of variably water saturated sediments with concentrated NaOH-NaNO (sub 3) -NaNO (sub 2) solutions that have leaked from the tanks. Constant Kd models for describing radionuclide retardation are not valid under these conditions because of strong competition for sorption sites by abundant Na+ ions, and because of dramatically changing solution compositions with time as the highly concentrated tank fluid becomes diluted as it mixes with infiltrating rainwater. A mechanistic multicomponent sorption model is required that can account for effects of competition and spatially and temporally variable solution compositions. To investigate the influence of the high ionic strength tank fluids on Cs (super +) migration, numerical calculations are performed using the multiphase-multicomponent reactive transport code FLOTRAN. The computer model describes reactive transport in nonisothermal, variably saturated porous media including both liquid and gas phases. Pitzer activity coefficient corrections are used to describe the high ionic strength solutions. The calculations take into account multicomponent cation exchange based on measured selectivity coefficients specific to the Hanford sediments. Solution composition data obtained from Well 299-W23-19, documenting a moderately concentrated leak from the SX-115 tank, are used to calibrate the model. In addition to exchange of cations Na (super +) , K (super +) , Ca (super 2+) , and Cs (super +) , aqueous complexing and a kinetic description of precipitation and dissolution of calcite are also included in the calculations. The fitted infiltration rate of 0.08 m yr-1, and fitted cation exchange capacity of 0.05 mol kg-1 are consistent with measured values for the Hanford sediments. A sensitivity analysis is performed for Na (super +) concentrations ranging from 5 to 20 m to investigate the mobility of Cs (super +) interacting with a highly concentrated background electrolyte solution believed to have been released from the SX-108/SX-109 tanks. The calculations indicate that during the initial period of the tank leak when Cs (super +) is associated with high Na (super +) concentrations, there is little retardation of the Cs (super +) plume. However, as time increases the Na (super +) and Cs (super +) profiles become chromatographically separated due to differences in their selectivity coefficients and dilution of the tank leak plume with infiltrating rainwater. Eventually the two species become separated spatially, and Cs (super +) becomes highly retarded and remains essentially fixed in the sediments by cation exchange. For the 20 m Na (super +) simulated tank leak, the sorbed Cs (super +) profile is in close agreement with data obtained from the slant borehole and consistent with the estimated tank supernatant concentration. The simulations suggest that natural attenuation processes should result in strong fixation of Cs (super +) in the vadose zone in spite of the release of high Na (super +) concentrations during a tank leak event. JF - Vadose Zone Journal AU - Lichtner, Peter C AU - Yabusaki, Steve AU - Pruess, Karsten AU - Steefel, Carl I Y1 - 2004/02// PY - 2004 DA - February 2004 SP - 203 EP - 219 PB - Soil Science Society of America, Madison, WI VL - 3 IS - 1 KW - United States KW - solute transport KW - calcium KW - isotopes KW - one-dimensional models KW - complexing KW - data processing KW - unsaturated zone KW - absorption KW - radioactive isotopes KW - chemical reactions KW - cesium KW - digital simulation KW - sediments KW - natural attenuation KW - water pollution KW - soils KW - leaking underground storage tanks KW - alkaline earth metals KW - Washington KW - two-phase models KW - cation exchange capacity KW - three-dimensional models KW - FLOTRAN KW - alkali metals KW - pollution KW - Hanford Site KW - equations KW - sodium KW - two-dimensional models KW - Cs-137 KW - soil pollution KW - metals KW - potassium KW - multiphase flow KW - Columbia Plateau KW - mobilization KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51127255?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Role+of+competitive+cation+exchange+on+chromatographic+displacement+of+cesium+in+the+vadose+zone+beneath+the+Hanford+S%2FSX+tank+farm&rft.au=Lichtner%2C+Peter+C%3BYabusaki%2C+Steve%3BPruess%2C+Karsten%3BSteefel%2C+Carl+I&rft.aulast=Lichtner&rft.aufirst=Peter&rft.date=2004-02-01&rft.volume=3&rft.issue=1&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 26 N1 - PubXState - WI N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes appendix; accessed on January 4, 2005 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absorption; alkali metals; alkaline earth metals; calcium; cation exchange capacity; cesium; chemical reactions; Columbia Plateau; complexing; Cs-137; data processing; digital simulation; equations; FLOTRAN; Hanford Site; isotopes; leaking underground storage tanks; metals; mobilization; multiphase flow; natural attenuation; one-dimensional models; pollution; potassium; radioactive isotopes; sediments; sodium; soil pollution; soils; solute transport; three-dimensional models; two-dimensional models; two-phase models; United States; unsaturated zone; Washington; water pollution ER - TY - JOUR T1 - A cation exchange model to describe Cs super(+) sorption at high ionic strength in subsurface sediments at Hanford site, USA AN - 28132725; 200406-32-06908 (CE); 05810112 (EN) AB - A theoretical and experimental study of cation exchange in high ionic strength electrolytes was performed using pristine subsurface sediments from the U.S. Department of Energy Hanford site. These sediments are representative of the site contaminated sediments impacted by release of high level waste (HLW) solutions containing super(137)Cs super(+) in NaNO sub(3) brine. The binary exchange behavior of Cs super(+)-Na super(+), Cs super(+)-K super(+), and Na super(+)-K super(+) was measured over a range in electrolyte concentration. Vanselow selectivity coefficients (K sub(v)) that were calculated from the experimental data using Pitzer model ion activity corrections for aqueous species showed monotonic increases with increasing electrolyte concentrations. The influence of electrolyte concentration was greater on the exchange of Na super(+)-Cs super(+) than K super(+)- Cs super(+), an observation consistent with the differences in ion hydration energy of the exchanging cations. A previously developed two-site ion exchange model [Geochimica et Cosmochimica Acta 66 (2002) 193] was modified to include solvent (water) activity changes in the exchanger phase through application of the Gibbs-Duhem equation. This water activity-corrected model well described the ionic strength effect on binary Cs super(+) exchange, and was extended to the ternary exchange system of Cs super(+)-Na super(+)-K super(+) on the pristine sediment. The model was also used to predict super(137)Cs super(+) distribution between sediment and aqueous phase (K sub(d)) beneath a leaked HLW tank in Hanford's S-SX tank using the analytical aqueous data from the field and the binary ion exchange coefficients for the pristine sediment. The K sub(d) predictions closely followed the trend in the field data and were improved by consideration of water activity effects that were considerable in certain regions of the vadose zone plume. JF - Journal of Contaminant Hydrology AU - Liu, C AU - Zachara, J M AU - Smith, S C AD - Environmental Dynamics/Simulation, Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-96, Richland, WA 99352, USA chongxuan.liu@pnl.gov PY - 2004 SP - 217 EP - 238 PB - Elsevier Science BV, P.O. Box 211, Amsterdam, 1000 AE, Netherlands, [mailto:w.tukker@elsevier.nl], [URL:http://www.elsevier.com] VL - 68 IS - 3-4 SN - 0169-7722, 0169-7722 KW - Civil Engineering (CE); Environmental Engineering (EN) KW - Mathematical models KW - Sediments KW - Electrolytes KW - Mathematical analysis KW - Cation exchanging KW - Sedimentation tanks KW - Sorption KW - Salt water KW - Wastes KW - Contamination KW - Phase transformations KW - Ion exchangers KW - Hydrology KW - Exchanging KW - Activity (chemical) KW - Contaminants KW - Article KW - EE 40:Water Pollution: Monitoring, Control & Remediation (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/28132725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=A+cation+exchange+model+to+describe+Cs+super%28%2B%29+sorption+at+high+ionic+strength+in+subsurface+sediments+at+Hanford+site%2C+USA&rft.au=Liu%2C+C%3BZachara%2C+J+M%3BSmith%2C+S+C&rft.aulast=Liu&rft.aufirst=C&rft.date=2004-02-01&rft.volume=68&rft.issue=3-4&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2FS0169-7722%2803%2900143-8 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2011-11-11 DO - http://dx.doi.org/10.1016/S0169-7722(03)00143-8 ER - TY - BOOK T1 - International Cooperation on Environmental Issues in the Puget Sound/Georgia Basin: What Environmental Issues Could Threaten Regional Security? AN - 18040176; 5870660 AB - Security is a growing concern worldwide, and homeland security has captured the attention of the United States over the past year and a half. In addition, awareness of the concept of environmental security--the notion that environmental degradation may have security implications--has been growing over the past decade. Internationally, environmental issues have direct links to security, as evidenced by the Middle East water disputes. While environmental security has not historically been a topic of major concern within the national boundaries of the United States or Canada, the environmental and development challenges that we're facing in the Puget Sound/Georgia Basin (PS/GB), coupled with this growing concern for security, prompted a query to consider whether environmental or natural resource problems could pose a serious threat to regional cooperation or stability in the PS/GB and, hence, deserve more attention from regional decision-makers. This discussion is expected to provide a useful focus for future collaboration and integration in the PS/GB. JF - 2003 Georgia Basin/Puget Sound Resarch Conference Proceedings AU - Lesperance, A AU - Judd, K AU - Peterson, N A2 - Droscher, TW A2 - Fraser, DA (eds) Y1 - 2004/02// PY - 2004 DA - February 2004 PB - Puget Sound Action Team, PO Box 40900 Olympia WA 98504 USA KW - national security KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - International cooperation KW - Natural resources KW - Environmental impact KW - INE, USA, Washington, Puget Sound KW - Disputes KW - Resource development KW - INE, Canada, British Columbia, Georgia Basin KW - National planning KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08121:Law, policy, economics and social sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18040176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Aquatic+Science+%26+Fisheries+Abstracts+%28ASFA%29+3%3A+Aquatic+Pollution+%26+Environmental+Quality&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Lesperance%2C+A%3BJudd%2C+K%3BPeterson%2C+N&rft.aulast=Lesperance&rft.aufirst=A&rft.date=2004-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=International+Cooperation+on+Environmental+Issues+in+the+Puget+Sound%2FGeorgia+Basin%3A+What+Environmental+Issues+Could+Threaten+Regional+Security%3F&rft.title=International+Cooperation+on+Environmental+Issues+in+the+Puget+Sound%2FGeorgia+Basin%3A+What+Environmental+Issues+Could+Threaten+Regional+Security%3F&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-12-21 ER - TY - BOOK T1 - Assessing Overwater Structure-related Predation on Juvenile Salmon: A Field Study and Protocol for Weighing the Evidence AN - 18033947; 5870797 AB - Large overwater structures have often been cited as potential migratory barriers and areas of increased predation for juvenile salmon migrating along shallow shoreline habitats, although conclusive evidence has not been demonstrated to date in situ. To help resolve this issue, Washington State Ferries (WSF) sponsored directed research to determine whether WSF terminals affect predation on juvenile salmon. We used a combination of standardized surveys, stomach content analyses, and new observational technologies to assess fish, avian, and mammal predation on salmon fry at ferry terminals and paired reference sites during periods of pre- (early April) and peak (May) outmigration. We observed no significant aggregation of potential bird or mammal predators at six ferry terminal study sites. Few potential fish predators were documented in SCUBA surveys, beach seines, or with a Dual frequency IDentification SONar (DIDSON) camera at Mukilteo, our single underwater study location. Only one instance of salmon predation by fish (staghorn sculpin - Leptocottus armatus) was confirmed, and this was at the corresponding reference site. A tiered protocol (Minimum/Recommended/Preferred actions) was developed for assessing potential predation at other overwater structures. Likewise, recommendations were developed for incorporating design features into WSF terminal improvement projects that could minimize future impacts. JF - 2003 Georgia Basin/Puget Sound Resarch Conference Proceedings AU - Williams, G D AU - Thom, R M AU - Southard, JA AU - Sargeant, S L AU - Shreffler, D K AU - Stamey, M A2 - Droscher, TW A2 - Fraser, DA (eds) Y1 - 2004/02// PY - 2004 DA - February 2004 PB - Puget Sound Action Team, PO Box 40900 Olympia WA 98504 USA KW - Pacific staghorn sculpin KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Juveniles KW - Interspecific relationships KW - Predation KW - Stock assessment KW - Analytical techniques KW - Leptocottus armatus KW - Port installations KW - Ferry terminals KW - Q1 08483:Species interactions: general KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18033947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Aquatic+Science+%26+Fisheries+Abstracts+%28ASFA%29+3%3A+Aquatic+Pollution+%26+Environmental+Quality&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Williams%2C+G+D%3BThom%2C+R+M%3BSouthard%2C+JA%3BSargeant%2C+S+L%3BShreffler%2C+D+K%3BStamey%2C+M&rft.aulast=Williams&rft.aufirst=G&rft.date=2004-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Assessing+Overwater+Structure-related+Predation+on+Juvenile+Salmon%3A+A+Field+Study+and+Protocol+for+Weighing+the+Evidence&rft.title=Assessing+Overwater+Structure-related+Predation+on+Juvenile+Salmon%3A+A+Field+Study+and+Protocol+for+Weighing+the+Evidence&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-12-21 ER - TY - BOOK T1 - Conceptual Models as a Tool for Assessing, Restoring, and Managing Puget Sound Habitats and Resources AN - 18028694; 5870771 AB - The City of Bainbridge Island is conducting a seminal nearshore characterization and assessment project funded through the Salmon Recovery Funding Board. The primary objective of this effort is to provide baseline data upon which to develop and implement nearshore management strategies (including restoration and preservation) and measure management success. A science-based conceptual framework was used to characterize the status of shoreline ecological functions based upon systematic evaluations of shoreline modifications, controlling factors, habitat structure, and habitat processes. Approximately 48.5 miles of shoreline was broken down into nine management units (based on drift cell knowledge) and each unit was analyzed by reach (based on the WADNR ShoreZone Inventory). Digital data, including the Bainbridge Island Nearshore Structure Inventory, was quantified using GIS which was in turn used to conduct a qualitative (3-tier) assessment using defensible, systematic matrices. The qualified measures were based on quantified parameters derived from the literature, current and historical shoreline photos, and expert opinion. This information was synthesized to determine human impacts, locating critical areas for protection or restoration, and identifying nearshore ecosystems most at risk to cumulative impacts. Based on readily available or easily collectable data, this approach could provide a useful framework for similar assessments in Puget Sound. JF - 2003 Georgia Basin/Puget Sound Resarch Conference Proceedings AU - Thom, R M AU - Williams, G D AU - Borde, AB A2 - Droscher, TW A2 - Fraser, DA (eds) Y1 - 2004/02// PY - 2004 DA - February 2004 PB - Puget Sound Action Team, PO Box 40900 Olympia WA 98504 USA KW - ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality KW - Marine KW - Resource management KW - Mathematical models KW - Financing KW - Habitat KW - Coastal waters KW - Baseline studies KW - Habitat improvement KW - Recovery KW - Coastal morphology KW - INE, USA, Washington, Puget Sound KW - GIS KW - Reef fish KW - Q5 08523:Conservation, wildlife management and recreation KW - Q1 08382:Ecological techniques and apparatus UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18028694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Aquatic+Science+%26+Fisheries+Abstracts+%28ASFA%29+3%3A+Aquatic+Pollution+%26+Environmental+Quality&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Thom%2C+R+M%3BWilliams%2C+G+D%3BBorde%2C+AB&rft.aulast=Thom&rft.aufirst=R&rft.date=2004-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Conceptual+Models+as+a+Tool+for+Assessing%2C+Restoring%2C+and+Managing+Puget+Sound+Habitats+and+Resources&rft.title=Conceptual+Models+as+a+Tool+for+Assessing%2C+Restoring%2C+and+Managing+Puget+Sound+Habitats+and+Resources&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-12-21 ER - TY - JOUR T1 - FTICR mass spectrometry for qualitative and quantitative bioanalyses AN - 17888894; 5856434 AB - Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) is playing an increasing role in the characterization of cellular systems owing to its capabilities for providing higher confidence of identification, increased dynamic range and sensitivity unmatched by other MS platforms. Particularly in proteomics, where global and quantitative approaches are essential, the attributes of FTICR-MS are poised to make significant contributions. Recent advances in the field that have particular importance for proteomic applications include the use of high-performance micro-capillary column separation techniques coupled to FTICR, as well as methods that improve protein identification, sensitivity, dynamic range and throughput. JF - Current Opinion in Biotechnology AU - Page, J S AU - Masselon, C D AU - Smith, R D AD - Biological Sciences Division and Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, USA, rds@pnl.gov Y1 - 2004/02// PY - 2004 DA - Feb 2004 SP - 3 EP - 11 PB - Elsevier Science Ltd., The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.nl] VL - 15 IS - 1 SN - 0958-1669, 0958-1669 KW - Fourier transform infrared spectroscopy KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - Reviews KW - Proteins KW - Separation techniques KW - Mass spectroscopy KW - W4 130:General Biomedical Engineering: Tools & Techniques KW - W 30965:Miscellaneous, Reviews KW - W3 33250:Methods: Others UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17888894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Opinion+in+Biotechnology&rft.atitle=FTICR+mass+spectrometry+for+qualitative+and+quantitative+bioanalyses&rft.au=Page%2C+J+S%3BMasselon%2C+C+D%3BSmith%2C+R+D&rft.aulast=Page&rft.aufirst=J&rft.date=2004-02-01&rft.volume=15&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Current+Opinion+in+Biotechnology&rft.issn=09581669&rft_id=info:doi/10.1016%2Fj.copbio.2004.01.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Reviews; Mass spectroscopy; Separation techniques; Proteins DO - http://dx.doi.org/10.1016/j.copbio.2004.01.002 ER - TY - JOUR T1 - Nanoscale proteomics AN - 17685736; 6036214 AB - Efforts to develop a liquid chromatography (LC)/mass spectrometry (MS) technology for ultra-sensitive proteomics studies (i.e., nanoscale proteomics) are described. The approach combines high-efficiency nanoscale LC (separation peak capacity of approximately 10 super(3); 15- mu m-i.d. packed capillaries with flow rates of 20 nL min super(-1), the optimal separation linear velocity) with advanced MS, including high-sensitivity and high-resolution Fourier transform ion cyclotron resonance MS, to perform both single-stage MS and tandem MS (MS/MS) proteomic analyses. The technology enables broad protein identification from nanogram-size proteomics samples and allows the characterization of more abundant proteins from sub-picogram-size samples. Protein identification in such studies using MS is demonstrated from <75 zeptomole of a protein. The average proteome measurement throughput is similar to 50 proteins h super(-1) using MS/MS during separations, presently requiring approximately 3 h sample super(-1). Greater throughput ( similar to 300 proteins h super(-1)) and improved detection limits providing more comprehensive proteome coverage can be obtained by using the "accurate mass and time" tag approach developed in our laboratory. This approach provides a dynamic range of at least 10 super(6) for protein relative abundances and an improved basis for quantitation. These capabilities lay the foundation for studies from single or limited numbers of cells. JF - Analytical and Bioanalytical Chemistry AU - Shen, Y AU - Tolic, N AU - Masselon, C AU - Pasa-Tolic, L AU - Camp, DG II AU - Lipton AU - Anderson, G A AU - Smith, R D AD - Biological Science Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA, rds@pnl.gov Y1 - 2004/02// PY - 2004 DA - Feb 2004 SP - 1037 EP - 1045 VL - 378 IS - 4 SN - 1618-2642, 1618-2642 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17685736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+and+Bioanalytical+Chemistry&rft.atitle=Nanoscale+proteomics&rft.au=Shen%2C+Y%3BTolic%2C+N%3BMasselon%2C+C%3BPasa-Tolic%2C+L%3BCamp%2C+DG+II%3BLipton%3BAnderson%2C+G+A%3BSmith%2C+R+D&rft.aulast=Shen&rft.aufirst=Y&rft.date=2004-02-01&rft.volume=378&rft.issue=4&rft.spage=1037&rft.isbn=&rft.btitle=&rft.title=Analytical+and+Bioanalytical+Chemistry&rft.issn=16182642&rft_id=info:doi/10.1007%2Fs00216-003-2329-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-04-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1007/s00216-003-2329-8 ER - TY - JOUR T1 - Phospholamban binds in a compact and ordered conformation to the Ca-ATPase. AN - 80095598; 14717600 AB - Mutagenesis and cross-linking measurements have identified specific contact interactions between the cytosolic and the transmembrane sequences of phospholamban (PLB) and the Ca-ATPase, and in conjunction with the high-resolution structures of PLB and the Ca-ATPase, have been used to construct models of the PLB-ATPase complex, which suggest that PLB adopts a more extended structure within this complex. To directly test these predictions, we have used fluorescence resonance energy transfer to measure the average conformation and heterogeneity between chromophores covalently bound to the transmembrane and cytosolic domains of PLB reconstituted in proteoliposomes. In the absence of the Ca-ATPase, the cytosolic domain of PLB assumes a wide range of structures relative to the transmembrane sequence, which can be described using a model involving a Gaussian distribution of distances with an average distance (Rav) of less than 21 A and a half-width (HW) of 36 A. This conformational heterogeneity of PLB is consistent with the 10 structures resolved by NMR for the C41F mutant of PLB in organic cosolvents. In contrast, PLB bound to the Ca-ATPase assumes a unique and highly ordered conformation, where Rav = 14.0 +/- 0.3 A and HW = 3.7 +/- 0.6 A. The small spatial separation between the bound chromophores on PLB is inconsistent with an extended conformation of bound PLB in current models. Thus, to satisfy known interaction sites of PLB and the Ca-ATPase, these findings suggest a reorientation of the nucleotide binding domain of the Ca-ATPase toward the bilayer surface to bring known PLB binding sites into close juxtaposition with residues near the amino-terminus of PLB. Induction of an altered conformation of the nucleotide binding domain of the Ca-ATPase by PLB binding is suggested to underlie the reduced calcium sensitivity associated with PLB inhibition of the pump. JF - Biochemistry AU - Li, Jinhui AU - Xiong, Yijia AU - Bigelow, Diana J AU - Squier, Thomas C AD - Cell Biology Group, Department of Biological Sciences, Fundamental Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2004/01/20/ PY - 2004 DA - 2004 Jan 20 SP - 455 EP - 463 VL - 43 IS - 2 SN - 0006-2960, 0006-2960 KW - Calcium-Binding Proteins KW - 0 KW - Maleimides KW - Membrane Lipids KW - phospholamban KW - N-(3-pyrene)maleimide KW - 9SZY1M545Z KW - Calcium-Transporting ATPases KW - EC 3.6.3.8 KW - Cysteine KW - K848JZ4886 KW - Alanine KW - OF5P57N2ZX KW - Index Medicus KW - Membrane Lipids -- chemistry KW - Animals KW - Models, Molecular KW - Cysteine -- genetics KW - Cytosol -- enzymology KW - Fluorescence Resonance Energy Transfer KW - Membrane Lipids -- metabolism KW - Maleimides -- chemistry KW - Rabbits KW - Amino Acid Sequence KW - Mutagenesis, Site-Directed KW - Protein Structure, Tertiary -- genetics KW - Fluorescence Polarization KW - Molecular Sequence Data KW - Alanine -- genetics KW - Protein Binding -- genetics KW - Protein Conformation KW - Calcium-Transporting ATPases -- chemistry KW - Calcium-Binding Proteins -- genetics KW - Calcium-Transporting ATPases -- metabolism KW - Calcium-Binding Proteins -- metabolism KW - Calcium-Binding Proteins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80095598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Phospholamban+binds+in+a+compact+and+ordered+conformation+to+the+Ca-ATPase.&rft.au=Li%2C+Jinhui%3BXiong%2C+Yijia%3BBigelow%2C+Diana+J%3BSquier%2C+Thomas+C&rft.aulast=Li&rft.aufirst=Jinhui&rft.date=2004-01-20&rft.volume=43&rft.issue=2&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-05-25 N1 - Date created - 2004-01-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Current problems and expected improvements in personal neutron dosimetry. AN - 66857947; 15353741 AB - Many technological activities involve the potential for worker exposure to neutrons. The determination of neutron personal dose equivalent is difficult due to a number of factors including the materials and methods used to evaluate the response of personal dosemeters and the quantities for expressing dose equivalent. Nevertheless, recent progress has been made in the development of devices and techniques for the measurement and calibration of neutron personal dosemeters. The quantities and units used to express neutron dose equivalent are being improved and clarified. Therefore, it is expected that a number of remaining difficulties with neutron dosimetry will be mitigated. JF - Radiation protection dosimetry AU - McDonald, Joseph C AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. joe.mcdonald@pnl.gov Y1 - 2004 PY - 2004 DA - 2004 SP - 743 EP - 745 VL - 110 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Index Medicus KW - Sensitivity and Specificity KW - Radiation Dosage KW - Artifacts KW - Reproducibility of Results KW - Body Burden KW - Humans KW - Technology Assessment, Biomedical KW - Calibration KW - Environmental Monitoring -- instrumentation KW - Equipment Design KW - Relative Biological Effectiveness KW - Safety Management -- methods KW - Risk Factors KW - Equipment Failure Analysis -- methods KW - Quality Assurance, Health Care -- methods KW - Environmental Monitoring -- methods KW - Neutrons KW - Radiometry -- instrumentation KW - Radiation Protection -- methods KW - Radiometry -- trends KW - Risk Assessment -- methods KW - Radiometry -- methods KW - Radiation Protection -- instrumentation KW - Occupational Exposure -- analysis KW - Risk Assessment -- trends UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/66857947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Current+problems+and+expected+improvements+in+personal+neutron+dosimetry.&rft.au=McDonald%2C+Joseph+C&rft.aulast=McDonald&rft.aufirst=Joseph&rft.date=2004-01-01&rft.volume=110&rft.issue=1-4&rft.spage=743&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-12-27 N1 - Date created - 2004-09-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Russia's Decisive Role in the Kyoto Protocol AN - 59713237; 200620467 AB - This paper assesses the prospects for Russia's ratification & implementation of the Kyoto Protocol. The Kyoto Protocol can enter into force only when countries responsible for 55 per cent of developed nations' 1990 carbon dioxide emissions ratify the agreement. With countries representing 44 percent of that total having already ratified Kyoto, & with Russia & the United States representing 17 & 36 percent of that amount, respectively, approval by either nation would bring Kyoto into force. The current U.S. administration of President George Bush & the leadership of the Congress oppose Kyoto, leaving the future of the climate treaty to Russia's President Vladimir Putin & its parliament. Adapted from the source document. JF - The Journal of Eurasian Research AU - Chandler, William AU - Popov, Ilya AD - Pacific Northwest National Laboratory, Washington, D.C. Y1 - 2004/01// PY - 2004 DA - January 2004 PB - 603123 Golubeva 8-80, Nizhny Novgorod, Russia VL - 3 IS - 2 SN - 1538-0378, 1538-0378 KW - United States of America KW - Environmental Policy KW - Russia KW - Ratification KW - Policy Implementation KW - Leadership KW - Legislation KW - article KW - 9063: international relations; international relations UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/59713237?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awpsa&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+Eurasian+Research&rft.atitle=Russia%27s+Decisive+Role+in+the+Kyoto+Protocol&rft.au=Chandler%2C+William%3BPopov%2C+Ilya&rft.aulast=Chandler&rft.aufirst=William&rft.date=2004-01-01&rft.volume=3&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+Eurasian+Research&rft.issn=15380378&rft_id=info:doi/ LA - English DB - Worldwide Political Science Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - SubjectsTermNotLitGenreText - Ratification; Environmental Policy; Legislation; Russia; United States of America; Leadership; Policy Implementation ER - TY - JOUR T1 - Water movement in the zone of interaction between groundwater and the Columbia River, Hanford Site, Washington AN - 51813777; 2004-063713 AB - A two-dimensional model that simulates flow pathlines in a vertical cross section oriented perpendicular to the Columbia River has been developed for a location at the Hanford Site. Hydraulic head data from wells and the adjacent river were used to calculate flow direction and velocity in hourly increments for an entire seasonal cycle. River stage cycles extend through a range of several meters, thus exerting a strong influence on water movement in the zone of interaction. By including a fluctuating river stage at the river boundary (center of channel), the model showed that landward of and beneath the shoreline, flow pathlines within the aquifer are deflected downward. The region immediately beneath the shoreline is strongly influenced by river water that infiltrates during high river stage. On the river side of the shoreline, groundwater discharges upward into the river channel, with pathlines converging in the riverbed relatively close to shore. If the model is run assuming a constant, average river stage, these movement features are not represented, thus demonstrating the need to include transient boundary conditions when a fluctuating river stage influences the zone of interaction between groundwater and surface water. The model provides information that supports a variety of applications, including monitoring strategies, contaminant transport models, risk assessments, remedial action design, and compliance requirements for remedial actions. JF - Journal of Hydraulic Research = Journal de Recherches Hydrauliques AU - Peterson, R E AU - Connelly, M P A2 - Valocchi, Albert J. Y1 - 2004 PY - 2004 DA - 2004 SP - 53 EP - 58 PB - International Association for Hydraulic Research, Delft VL - 42 IS - Extra issue SN - 0022-1686, 0022-1686 KW - United States KW - Washington KW - pollutants KW - Columbia River KW - surface water KW - data processing KW - waste disposal sites KW - pollution KW - Hanford Site KW - preferential flow KW - simulation KW - environmental analysis KW - remediation KW - ground water KW - computer programs KW - hydraulic head KW - transport KW - hydrodynamics KW - risk assessment KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51813777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydraulic+Research+%3D+Journal+de+Recherches+Hydrauliques&rft.atitle=Water+movement+in+the+zone+of+interaction+between+groundwater+and+the+Columbia+River%2C+Hanford+Site%2C+Washington&rft.au=Peterson%2C+R+E%3BConnelly%2C+M+P&rft.aulast=Peterson&rft.aufirst=R&rft.date=2004-01-01&rft.volume=42&rft.issue=Extra+issue&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydraulic+Research+%3D+Journal+de+Recherches+Hydrauliques&rft.issn=00221686&rft_id=info:doi/ L2 - http://www.tandf.co.uk/journals/TJHR LA - English DB - GeoRef N1 - Conference title - IAHR international groundwater symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - IHSBAS N1 - SubjectsTermNotLitGenreText - Columbia River; computer programs; data processing; environmental analysis; ground water; Hanford Site; hydraulic head; hydrodynamics; pollutants; pollution; preferential flow; remediation; risk assessment; simulation; surface water; transport; United States; Washington; waste disposal sites ER - TY - JOUR T1 - Chromium speciation and mobility in a high level nuclear waste vadose zone plume AN - 51811921; 2004-065488 AB - Radioactive core samples containing elevated concentrations of Cr from a high level nuclear waste plume in the Hanford vadose zone were studied to asses the future mobility of Cr. Cr(VI) is an important subsurface contaminant at the Hanford Site. The plume originated in 1969 by leakage of self-boiling supernate from a tank containing REDOX process waste. The supernate contained high concentrations of alkali (NaOH nearly equal 5.25 mol/L), salt (NaNO (sub 3) /NaNO (sub 2) >10 mol/L), aluminate [Al(OH) (sub 4) (super -) = 3.36 mol/L], Cr(VI) (0.413 mol/L), and (super 137) Cs (super +) (6.51X10 (super -5) mol/L). Water and acid extraction of the oxidized subsurface sediments indicated that a significant portion of the total Cr was associated with the solid phase. Mineralogic analyses, Cr valence speciation measurements by X-ray adsorption near edge structure (XANES) spectroscopy, and small column leaching studies were performed to identify the chemical retardation mechanism and leachability of Cr. While X-ray diffraction detected little mineralogic change to the sediments from waste reaction, scanning electron microscopy (SEM) showed that mineral particles within 5 m of the point of tank failure were coated with secondary, sodium aluminosilicate precipitates. The density of these precipitates decreased with distance from the source (e.g., beyond 10 m). The XANES and column studies demonstrated the reduction of 29-75% of the total Cr to insoluble Cr(III), and the apparent precipitation of up to 43% of the Cr(VI) as an unidentified, non-leachable phase. Both Cr(VI) reduction and Cr(VI) precipitation were greater in sediments closer to the leak source where significant mineral alteration was noted by SEM. These and other observations imply that basic mineral hydrolysis driven by large concentrations of OH (super -) in the waste stream liberated Fe(II) from the otherwise oxidizing sediments that served as a reductant for CrO (sub 4) (super 2-) . The coarse-textured Hanford sediments contain silt-sized mineral phases (biotite, clinochlore, magnetite, and ilmenite) that are sources of Fe(II). Other dissolution products (e.g., Ba (super 2+) ) or Al(OH) (sub 4) (super -) present in the waste stream may have induced Cr(VI) precipitation as pH moderated through mineral reaction. The results demonstrate that a minimum of 42% of the total Cr inventory in all of the samples was immobilized as Cr(III) and Cr(VI) precipitates that are unlikely to dissolve and migrate to groundwater under the low recharge conditions of the Hanford vadose zone. JF - Geochimica et Cosmochimica Acta AU - Zachara, John M AU - Ainsworth, Calvin C AU - Brown, Gordon E, Jr AU - Catalano, Jeffrey G AU - McKinley, James P AU - Qafoku, Odeta AU - Smith, Steven C AU - Szecsody, James E AU - Traina, Sam J AU - Warner, Jeffrey A Y1 - 2004/01// PY - 2004 DA - January 2004 SP - 13 EP - 30 PB - Pergamon, Oxford VL - 68 IS - 1 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - unsaturated zone KW - hydrolysis KW - cores KW - radioactive waste KW - XANES spectra KW - aluminosilicates KW - aluminum KW - sediments KW - spectra KW - mobility KW - chromium KW - soils KW - migration KW - high-level waste KW - experimental studies KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - X-ray spectra KW - hydroxyl ion KW - precipitation KW - metals KW - waste disposal KW - SEM data KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51811921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Chromium+speciation+and+mobility+in+a+high+level+nuclear+waste+vadose+zone+plume&rft.au=Zachara%2C+John+M%3BAinsworth%2C+Calvin+C%3BBrown%2C+Gordon+E%2C+Jr%3BCatalano%2C+Jeffrey+G%3BMcKinley%2C+James+P%3BQafoku%2C+Odeta%3BSmith%2C+Steven+C%3BSzecsody%2C+James+E%3BTraina%2C+Sam+J%3BWarner%2C+Jeffrey+A&rft.aulast=Zachara&rft.aufirst=John&rft.date=2004-01-01&rft.volume=68&rft.issue=1&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2803%2900417-4 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2004-01-01 N1 - Number of references - 69 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aluminosilicates; aluminum; chemical fractionation; chromium; cores; experimental studies; Hanford Site; high-level waste; hydrolysis; hydroxyl ion; metals; migration; mobility; pollutants; pollution; precipitation; radioactive waste; sediments; SEM data; silicates; soils; spectra; United States; unsaturated zone; Washington; waste disposal; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/S0016-7037(03)00417-4 ER - TY - JOUR T1 - Biodegradation and bioremediation of petroleum pollutants in soil AN - 51746220; 2005-017515 JF - Soil Biology AU - Huesemann, Michael H A2 - Singh, Ajay A2 - Ward, Owen P. Y1 - 2004 PY - 2004 DA - 2004 SP - 13 EP - 34 PB - Springer, Berlin VL - 1 SN - 1613-3382, 1613-3382 KW - soils KW - fertilizers KW - concentration KW - biodegradation KW - contaminant plumes KW - pollutants KW - moisture KW - oxidation KW - soil treatment KW - pollution KW - optimization KW - bioavailability KW - petroleum products KW - bioremediation KW - cometabolism KW - remediation KW - organic compounds KW - hydrocarbons KW - risk assessment KW - pH KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51746220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology&rft.atitle=Biodegradation+and+bioremediation+of+petroleum+pollutants+in+soil&rft.au=Huesemann%2C+Michael+H&rft.aulast=Huesemann&rft.aufirst=Michael&rft.date=2004-01-01&rft.volume=1&rft.issue=&rft.spage=13&rft.isbn=3540210202&rft.btitle=&rft.title=Soil+Biology&rft.issn=16133382&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 111 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bioavailability; biodegradation; bioremediation; cometabolism; concentration; contaminant plumes; fertilizers; hydrocarbons; moisture; optimization; organic compounds; oxidation; petroleum products; pH; pollutants; pollution; remediation; risk assessment; soil treatment; soils ER - TY - JOUR T1 - Towards a consistent rate law; glass corrosion kinetics near saturation AN - 51670847; 2005-065992 AB - Although glass corrosion resistance has been tested with laboratory methods for decades, investigators are now just beginning to understand the reaction phenomena at or close to saturation with respect to the rate-limiting phase(s). Near saturation, the phenomena that govern element release rates include alkali-hydrogen (species) exchange, differential reactivity of phase-separated glass, and accelerated corrosion rates due to precipitation of key secondary phases. These phenomena were not anticipated by early models of glass dissolution and are incompletely quantified in current rate representations. This review discusses the two over-arching models for glass reactivity, diffusion and surface reaction control, and demonstrates the importance of glass reactivity in terms of glass composition and micro-heterogeneity of the glass. Our conclusion is that surface reaction control best describes the release of elements to solution, but that models based on current interpretations of transition state theory (TST) must be modified to account for reported anomalies in behaviour near saturation. JF - Geological Society Special Publications AU - Icenhower, Jonathan P AU - Samson, S AU - Luettge, A AU - McGrail, B P A2 - Giere, Reto A2 - Stille, Peter Y1 - 2004 PY - 2004 DA - 2004 SP - 579 EP - 594 PB - Geological Society of London, London VL - 236 SN - 0305-8719, 0305-8719 KW - silicates KW - isotopes KW - stability KW - reinforced materials KW - suspended materials KW - phase transitions KW - radioactive waste KW - ground water KW - laboratory studies KW - controls KW - radioactive isotopes KW - chemical reactions KW - ion exchange KW - chemical composition KW - mobility KW - kinetics KW - glass materials KW - diffusivity KW - corrosion KW - experimental studies KW - rates KW - recharge KW - borosilicates KW - saturation KW - precipitation KW - vitrification KW - waste disposal KW - underground disposal KW - SEM data KW - pore water KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51670847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+Special+Publications&rft.atitle=Towards+a+consistent+rate+law%3B+glass+corrosion+kinetics+near+saturation&rft.au=Icenhower%2C+Jonathan+P%3BSamson%2C+S%3BLuettge%2C+A%3BMcGrail%2C+B+P&rft.aulast=Icenhower&rft.aufirst=Jonathan&rft.date=2004-01-01&rft.volume=236&rft.issue=&rft.spage=579&rft.isbn=186239167X&rft.btitle=&rft.title=Geological+Society+Special+Publications&rft.issn=03058719&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 71 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GSLSBW N1 - SubjectsTermNotLitGenreText - borosilicates; chemical composition; chemical reactions; controls; corrosion; diffusivity; experimental studies; glass materials; ground water; ion exchange; isotopes; kinetics; laboratory studies; mobility; phase transitions; pore water; precipitation; radioactive isotopes; radioactive waste; rates; recharge; reinforced materials; saturation; SEM data; silicates; stability; suspended materials; underground disposal; vitrification; waste disposal ER - TY - JOUR T1 - The geochemical behaviour of Tc, Np and Pu in spent nuclear fuel in an oxidizing environment AN - 51670743; 2005-065965 AB - Spent fuel from commercial nuclear reactors consists mainly of uranium oxide. However, the changes that occur during reactor operations have a profound effect on chemical and physical properties of this material. Heat build-up in the fuel pellet during reactor operations can cause redistribution of fission products. The fission products may aggregate in one or three types of precipitates; gaseous, metallic, or oxide, depending on the bum-up and in-core treatment. Radiation damage and variations in fission and neutron capture yields across the fuel pellets lead to Pu enrichment and increased porosity with increasing bum-up. A more porous surface may make the fuel more susceptible to oxidative dissolution. As the level of actinides and fission products increases, the fuel may become more resistant to oxidation. These changes may limit the usefulness of natural uraninite (UO (sub 2) ) analogues for predicting the geological behaviour of spent fuel disposed in a high-level waste (HLW) repository. In this Chapter, an overview of spent fuel microstructure, radiolytic effects, and alteration processes is presented. Evidence for Np incorporation into U (super 6+) phases, the nature of Pu surface precipitates on spent fuel, and evidence for the preferential removal of 4d-metals from e-particles in corroded spent fuel is discussed. Understanding the potential mechanisms of radionuclide attenuation through sorption and/or incorporation requires techniques with both high spatial resolution and excellent elemental sensitivity. JF - Geological Society Special Publications AU - Buck, Edgar C AU - Hanson, Brady D AU - McNamara, Bruce K A2 - Giere, Reto A2 - Stille, Peter Y1 - 2004 PY - 2004 DA - 2004 SP - 65 EP - 88 PB - Geological Society of London, London VL - 236 SN - 0305-8719, 0305-8719 KW - sorption KW - neptunium KW - isotopes KW - radioactivity KW - plutonium KW - Pu-239 KW - radioactive waste KW - radioactive isotopes KW - chemical properties KW - oxides KW - fission KW - technetium KW - high-level waste KW - concentration KW - Np-237 KW - oxidation KW - uranyl ion KW - Tc-99 KW - migration of elements KW - TEM data KW - paragenesis KW - physical properties KW - metals KW - natural analogs KW - nuclear facilities KW - waste disposal KW - uraninite KW - actinides KW - SEM data KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51670743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geological+Society+Special+Publications&rft.atitle=The+geochemical+behaviour+of+Tc%2C+Np+and+Pu+in+spent+nuclear+fuel+in+an+oxidizing+environment&rft.au=Buck%2C+Edgar+C%3BHanson%2C+Brady+D%3BMcNamara%2C+Bruce+K&rft.aulast=Buck&rft.aufirst=Edgar&rft.date=2004-01-01&rft.volume=236&rft.issue=&rft.spage=65&rft.isbn=186239167X&rft.btitle=&rft.title=Geological+Society+Special+Publications&rft.issn=03058719&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 82 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GSLSBW N1 - SubjectsTermNotLitGenreText - actinides; chemical properties; concentration; fission; high-level waste; isotopes; metals; migration of elements; natural analogs; neptunium; Np-237; nuclear facilities; oxidation; oxides; paragenesis; physical properties; plutonium; Pu-239; radioactive isotopes; radioactive waste; radioactivity; SEM data; sorption; Tc-99; technetium; TEM data; uraninite; uranyl ion; waste disposal ER - TY - JOUR T1 - Direct measurements of pH and dissolved CO (sub 2) concentrations in H (sub 2) O-CO (sub 2) brine mixtures to supercritical conditions AN - 51525871; 2006-087477 AB - Very limited fundamental measurements of pH and aqueous speciation in water-salt-CO (sub 2) mixtures at high pressure have been performed. The few available measurements show pH values varying as much as 1 or 2 pH units over the important range of temperature and CO (sub 2) pressure expected in deep saline formations that are being widely considered for geologic sequestration. Stability of certain important clay and carbonate minerals is strongly affected by pH changes in this region. A high-pressure view cell equipped with a pressure-capable glass combination pH probe was used to independently measure solution pH in H (sub 2) O-CO (sub 2) brine mixtures to beyond supercritical conditions. Raman spectra were simultaneously collected in the aqueous phase and show a linear relationship between the intensity of the main symmetrical stretching vibrational mode at 1388 cm-1 and increasing CO (sub 2) pressure. The results are interpreted in terms of water solvation effects on dissolved CO (sub 2) . JF - Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists AU - Schaef, H Todd AU - McGrail, B Peter AU - Anonymous Y1 - 2004 PY - 2004 DA - 2004 SP - 124 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 13 SN - 0094-0038, 0094-0038 KW - water KW - solvation KW - pressure KW - brines KW - solutes KW - effects KW - pH KW - variations KW - measurement KW - chemical fractionation KW - carbon dioxide KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51525871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.atitle=Direct+measurements+of+pH+and+dissolved+CO+%28sub+2%29+concentrations+in+H+%28sub+2%29+O-CO+%28sub+2%29+brine+mixtures+to+supercritical+conditions&rft.au=Schaef%2C+H+Todd%3BMcGrail%2C+B+Peter%3BAnonymous&rft.aulast=Schaef&rft.aufirst=H&rft.date=2004-01-01&rft.volume=13&rft.issue=&rft.spage=124&rft.isbn=&rft.btitle=&rft.title=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.issn=00940038&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AAPG annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2006-01-01 N1 - PubXState - OK N1 - Last updated - 2014-03-14 N1 - CODEN - APGAB2 N1 - SubjectsTermNotLitGenreText - brines; carbon dioxide; chemical fractionation; effects; measurement; pH; pressure; solutes; solvation; variations; water ER - TY - JOUR T1 - Geologic sequestration of CO (sub 2) in basalt formations AN - 51523245; 2006-087478 AB - Capture of CO (sub 2) from flue gases and subsequent geologic sequestration is being widely considered for controlling anthropogenic CO (sub 2) emissions. Massive flood basalt formations exist worldwide and have unique chemical properties that could potentially convert all the injected CO (sub 2) to solid mineral form, effectively isolating it from the atmosphere. Under certain reservoir conditions, CO (sub 2) reacts with the minerals in the basalt releasing cations (Ca, Fe, and Mg) into solution, which precipitate as a carbonate mineral. Laboratory tests have confirmed the formation of carbonate coatings when basalt samples collected from Washington State were exposed to supercritical CO (sub 2) . Detailed examination of the reacted basalt shows that preferential dissolution of the glassy mesostasis and olivine in the basalt are the principal mineral phases responsible for the observed rapid carbonate mineralization. JF - Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists AU - Schaef, H Todd AU - McGrail, B Peter AU - Reidel, Stephen P AU - Anonymous Y1 - 2004 PY - 2004 DA - 2004 SP - 124 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 13 SN - 0094-0038, 0094-0038 KW - calcium KW - magnesium KW - volcanic rocks KW - solutions KW - igneous rocks KW - solution KW - iron KW - carbon dioxide KW - laboratory studies KW - controls KW - mineral composition KW - basalts KW - chemical properties KW - mineralization KW - alkaline earth metals KW - experimental studies KW - human activity KW - atmosphere KW - samples KW - precipitation KW - metals KW - cations KW - testing KW - reservoir properties KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51523245?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.atitle=Geologic+sequestration+of+CO+%28sub+2%29+in+basalt+formations&rft.au=Schaef%2C+H+Todd%3BMcGrail%2C+B+Peter%3BReidel%2C+Stephen+P%3BAnonymous&rft.aulast=Schaef&rft.aufirst=H&rft.date=2004-01-01&rft.volume=13&rft.issue=&rft.spage=124&rft.isbn=&rft.btitle=&rft.title=Annual+Meeting+Expanded+Abstracts+-+American+Association+of+Petroleum+Geologists&rft.issn=00940038&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - AAPG annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2006-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - APGAB2 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atmosphere; basalts; calcium; carbon dioxide; cations; chemical properties; controls; experimental studies; human activity; igneous rocks; iron; laboratory studies; magnesium; metals; mineral composition; mineralization; precipitation; reservoir properties; samples; solution; solutions; testing; volcanic rocks ER - TY - JOUR T1 - Laboratory investigation into the contribution of contaminants to ground water from equipment materials used in sampling AN - 51140436; 2005-004467 AB - Benzene contamination was detected in well water samples from the Ogallala Aquifer beneath and adjacent to the Department of Energy's Pantex Plant near Amarillo, Texas. This study assessed whether or not the materials used in multilevel sampling equipment at this site could have contributed to the contaminants found in well water samples. As part of this investigation, laboratory testing of the sample equipment material was conducted. Results from the laboratory tests indicated three different materials from two types of multilevel samplers did, in fact, contribute volatile and semivolatile organic compounds to the ground water samples from static leach tests that were conducted during an eight week period. The nylon-11 tubing contributed trace concentrations of benzene (1.37 mu g/L) and relatively high concentrations of the plasticizer N-butylbenzenesulfonamide (NBSA) (764 mg/L) to the water; a urethane-coated nylon well liner contributed relatively high concentrations of toluene (278 mu g/L) and trace amounts of NBSA; and a sampling port spacer material made of nylon/polypropylene/polyester-composite contributed trace amounts of toluene and NBSA. While the concentrations of benzene and toluene measured in the laboratory tests were below the concentrations measured in actual ground water samples, the concentrations of organics from these equipment materials were sufficient to render the results reported for the ground water samples suspect. JF - Ground Water Monitoring & Remediation AU - Gilmore, Tyler J AU - Mitroshkov, Alexandre V AU - Dresel, P Evan AU - Sklarew, Deborah S Y1 - 2004 PY - 2004 DA - 2004 SP - 88 EP - 94 PB - Ground Water Publishing Co., Dublin, OH VL - 24 IS - 3 SN - 1069-3629, 1069-3629 KW - United States KW - toluene KW - Ogallala Aquifer KW - techniques KW - environmental analysis KW - ground water KW - laboratory studies KW - sampling KW - Superfund sites KW - Amarillo Texas KW - concentration KW - experimental studies KW - pollutants KW - pollution KW - Texas KW - Pantex Plant Site KW - samplers KW - benzene KW - aquifers KW - Potter County Texas KW - organic compounds KW - detection KW - hydrocarbons KW - instruments KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51140436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water+Monitoring+%26+Remediation&rft.atitle=Laboratory+investigation+into+the+contribution+of+contaminants+to+ground+water+from+equipment+materials+used+in+sampling&rft.au=Gilmore%2C+Tyler+J%3BMitroshkov%2C+Alexandre+V%3BDresel%2C+P+Evan%3BSklarew%2C+Deborah+S&rft.aulast=Gilmore&rft.aufirst=Tyler&rft.date=2004-01-01&rft.volume=24&rft.issue=3&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+%26+Remediation&rft.issn=10693629&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6592 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 10 N1 - PubXState - OH N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - Amarillo Texas; aquifers; aromatic hydrocarbons; benzene; concentration; detection; environmental analysis; experimental studies; ground water; hydrocarbons; instruments; laboratory studies; Ogallala Aquifer; organic compounds; Pantex Plant Site; pollutants; pollution; Potter County Texas; samplers; sampling; Superfund sites; techniques; Texas; toluene; United States ER - TY - JOUR T1 - Remote-Raman and micro-Raman studies of solid CO (sub 2) , CH (sub 4) gas hydrates and ice AN - 50261211; 2008-127621 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Sharma, S K AU - Misra, A K AU - Lucey, P G AU - Exarhos, G J AU - Windisch, C F, Jr AU - Anonymous Y1 - 2004 PY - 2004 DA - 2004 EP - unpaginated PB - Lunar and Planetary Science Conference, Houston, TX VL - 35 KW - experimental studies KW - methane KW - gas hydrates KW - aliphatic hydrocarbons KW - remote Raman spectroscopy KW - Mars KW - alkanes KW - feasibility studies KW - carbon dioxide KW - terrestrial planets KW - planets KW - organic compounds KW - Raman spectra KW - ice KW - hydrocarbons KW - spectra KW - spectroscopy KW - remote sensing KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50261211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Remote-Raman+and+micro-Raman+studies+of+solid+CO+%28sub+2%29+%2C+CH+%28sub+4%29+gas+hydrates+and+ice&rft.au=Sharma%2C+S+K%3BMisra%2C+A+K%3BLucey%2C+P+G%3BExarhos%2C+G+J%3BWindisch%2C+C+F%2C+Jr%3BAnonymous&rft.aulast=Sharma&rft.aufirst=S&rft.date=2004-01-01&rft.volume=35&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2004/pdf/1929.pdf LA - English DB - GeoRef N1 - Conference title - Thirty-fifth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Feb. 16, 2007 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; carbon dioxide; experimental studies; feasibility studies; gas hydrates; hydrocarbons; ice; Mars; methane; organic compounds; planets; Raman spectra; remote Raman spectroscopy; remote sensing; spectra; spectroscopy; terrestrial planets ER - TY - JOUR T1 - Etch pit morphology and Mg inhibition of calcite dissolution AN - 50120382; 2010-003030 JF - Proceedings - International Symposium on Water-Rock Interaction AU - Arvidson, R S AU - Davis, K J AU - Collier, M AU - Luttge, A AU - Amonette, J E A2 - Wanty, Richard B. A2 - Seal, Robert R., II Y1 - 2004 PY - 2004 DA - 2004 SP - 721 EP - 725 PB - Taylor & Francis VL - 11 SN - 0258-7610, 0258-7610 KW - alkaline earth metals KW - magnesium KW - experimental studies KW - pits KW - crystal structure KW - crystal growth KW - adsorption KW - interferometry KW - calcite KW - nucleation KW - water-rock interaction KW - metals KW - dissolution KW - etching KW - chemical composition KW - geochemistry KW - carbonates KW - pH KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50120382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.atitle=Etch+pit+morphology+and+Mg+inhibition+of+calcite+dissolution&rft.au=Arvidson%2C+R+S%3BDavis%2C+K+J%3BCollier%2C+M%3BLuttge%2C+A%3BAmonette%2C+J+E&rft.aulast=Arvidson&rft.aufirst=R&rft.date=2004-01-01&rft.volume=11&rft.issue=&rft.spage=721&rft.isbn=9058096416&rft.btitle=&rft.title=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.issn=02587610&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international symposium on Water-rock interaction N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 24 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; alkaline earth metals; calcite; carbonates; chemical composition; crystal growth; crystal structure; dissolution; etching; experimental studies; geochemistry; interferometry; magnesium; metals; nucleation; pH; pits; water-rock interaction ER - TY - JOUR T1 - The role of secondary mineral precipitates on radionuclide sequestration at the Hanford Site AN - 50118308; 2010-003029 JF - Proceedings - International Symposium on Water-Rock Interaction AU - Um, W AU - Serne, R J AU - Yabusaki, S B AU - Freedman, V L AU - Samson, S D AU - Nagy, K L A2 - Wanty, Richard B. A2 - Seal, Robert R., II Y1 - 2004 PY - 2004 DA - 2004 SP - 715 EP - 718 PB - Taylor & Francis VL - 11 SN - 0258-7610, 0258-7610 KW - United States KW - silicates KW - hazardous waste KW - sorption KW - X-ray diffraction data KW - solutions KW - silica minerals KW - selenium KW - isotopes KW - halogens KW - mass spectra KW - simulation KW - environmental analysis KW - ground water KW - laboratory studies KW - iodine KW - radioactive isotopes KW - chemical reactions KW - water-rock interaction KW - sediments KW - framework silicates KW - spectra KW - chemical composition KW - geochemistry KW - soils KW - technetium KW - leaking underground storage tanks KW - alkaline earth metals KW - experimental studies KW - Washington KW - sequestration KW - secondary minerals KW - pollutants KW - pollution KW - nitrates KW - Hanford Site KW - hydrochemistry KW - ICP mass spectra KW - precipitation KW - metals KW - quartz KW - dissolution KW - strontium KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50118308?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.atitle=The+role+of+secondary+mineral+precipitates+on+radionuclide+sequestration+at+the+Hanford+Site&rft.au=Um%2C+W%3BSerne%2C+R+J%3BYabusaki%2C+S+B%3BFreedman%2C+V+L%3BSamson%2C+S+D%3BNagy%2C+K+L&rft.aulast=Um&rft.aufirst=W&rft.date=2004-01-01&rft.volume=11&rft.issue=&rft.spage=715&rft.isbn=9058096416&rft.btitle=&rft.title=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.issn=02587610&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international symposium on Water-rock interaction N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 6 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; chemical composition; chemical reactions; dissolution; environmental analysis; experimental studies; framework silicates; geochemistry; ground water; halogens; Hanford Site; hazardous waste; hydrochemistry; ICP mass spectra; iodine; isotopes; laboratory studies; leaking underground storage tanks; mass spectra; metals; nitrates; pollutants; pollution; precipitation; quartz; radioactive isotopes; secondary minerals; sediments; selenium; sequestration; silica minerals; silicates; simulation; soils; solutions; sorption; spectra; strontium; technetium; United States; Washington; water-rock interaction; X-ray diffraction data ER - TY - JOUR T1 - Mineral formation and radionuclide sorption in waste-impacted Hanford sediments AN - 50114248; 2010-003021 JF - Proceedings - International Symposium on Water-Rock Interaction AU - Chorover, J D AU - Rotenberg, P AU - Serne, R J A2 - Wanty, Richard B. A2 - Seal, Robert R., II Y1 - 2004 PY - 2004 DA - 2004 SP - 675 EP - 678 PB - Taylor & Francis VL - 11 SN - 0258-7610, 0258-7610 KW - United States KW - silicates KW - sorption KW - X-ray diffraction data KW - isotopes KW - unsaturated zone KW - environmental analysis KW - ground water KW - radioactive isotopes KW - mineral composition KW - chemical reactions KW - cesium KW - water-rock interaction KW - sediments KW - zeolite group KW - framework silicates KW - chemical composition KW - kinetics KW - geochemistry KW - soils KW - leaking underground storage tanks KW - alkaline earth metals KW - experimental studies KW - Washington KW - pollutants KW - alkali metals KW - pollution KW - Hanford Site KW - kaolinite KW - weathering KW - clay minerals KW - solid phase KW - precipitation KW - metals KW - sheet silicates KW - waste disposal KW - transformations KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50114248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.atitle=Mineral+formation+and+radionuclide+sorption+in+waste-impacted+Hanford+sediments&rft.au=Chorover%2C+J+D%3BRotenberg%2C+P%3BSerne%2C+R+J&rft.aulast=Chorover&rft.aufirst=J&rft.date=2004-01-01&rft.volume=11&rft.issue=&rft.spage=675&rft.isbn=9058096416&rft.btitle=&rft.title=Proceedings+-+International+Symposium+on+Water-Rock+Interaction&rft.issn=02587610&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh international symposium on Water-rock interaction N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 9 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; cesium; chemical composition; chemical reactions; clay minerals; environmental analysis; experimental studies; framework silicates; geochemistry; ground water; Hanford Site; isotopes; kaolinite; kinetics; leaking underground storage tanks; metals; mineral composition; pollutants; pollution; precipitation; radioactive isotopes; sediments; sheet silicates; silicates; soils; solid phase; sorption; strontium; transformations; United States; unsaturated zone; Washington; waste disposal; water-rock interaction; weathering; X-ray diffraction data; zeolite group ER - TY - JOUR T1 - A rational approach for discovering and validating cancer markers in very small samples using mass spectrometry and ELISA microarrays AN - 19500770; 8719907 AB - Identifying useful markers of cancer can be problematic due to limited amounts of sample. Some samples such as nipple aspirate fluid (NAF) or early-stage tumors are inherently small. Other samples such as serum are collected in larger volumes but archives of these samples are very valuable and only small amounts of each sample may be available for a single study. Also, given the diverse nature of cancer and the inherent variability in individual protein levels, it seems likely that the best approach to screen for cancer will be to determine the profile of a battery of proteins. As a result, a major challenge in identifying protein markers of disease is the ability to screen many proteins using very small amounts of sample. In this review, we outline some technological advances in proteomics that greatly advance this capability. Specifically, we propose a strategy for identifying markers of breast cancer in NAF that utilizes mass spectrometry (MS) to simultaneously screen hundreds or thousands of proteins in each sample. The best potential markers identified by the MS analysis can then be extensively characterized using an ELISA microarray assay. Because the microarray analysis is quantitative and large numbers of samples can be efficiently analyzed, this approach offers the ability to rapidly assess a battery of selected proteins in a manner that is directly relevant to traditional clinical assays. JF - Disease Markers AU - Zangar, Richard C AU - Varnum, Susan M AU - Covington, Chandice Y AU - Smith, Richard D AD - Pacific Northwest National Laboratory, Richland, WA, USA Y1 - 2004 PY - 2004 DA - 2004 SP - 135 EP - 148 PB - IOS Press, Nieuwe Hemweg 6B VL - 20 IS - 3 SN - 0278-0240, 0278-0240 KW - Biotechnology and Bioengineering Abstracts KW - proteomics KW - protein microarray KW - biomarker KW - mass spectrometry KW - Enzyme-linked immunosorbent assay KW - Nipples KW - Reviews KW - Breast cancer KW - Tumors KW - Development KW - biomarkers KW - Mass spectroscopy KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19500770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Disease+Markers&rft.atitle=A+rational+approach+for+discovering+and+validating+cancer+markers+in+very+small+samples+using+mass+spectrometry+and+ELISA+microarrays&rft.au=Zangar%2C+Richard+C%3BVarnum%2C+Susan+M%3BCovington%2C+Chandice+Y%3BSmith%2C+Richard+D&rft.aulast=Zangar&rft.aufirst=Richard&rft.date=2004-01-01&rft.volume=20&rft.issue=3&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Disease+Markers&rft.issn=02780240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-01-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Nipples; Enzyme-linked immunosorbent assay; Reviews; Breast cancer; Development; proteomics; Tumors; biomarkers; Mass spectroscopy ER - TY - JOUR T1 - Mid-Century Ensemble Regional Climate Change Scenarios for the Western United States AN - 18062340; 5855884 AB - To study the impacts of climate change on water resources in the western U.S., global climate simulations were produced using the National Center for Atmospheric Research/Department of Energy (NCAR/DOE) Parallel Climate Model (PCM). The Penn State/NCAR Mesoscale Model (MM5) was used to downscale the PCM control (20 years) and three future (2040-2060) climate simulations to yield ensemble regional climate simulations at 40 km spatial resolution for the western U.S. This paper describes the regional simulations and focuses on the hydroclimate conditions in the Columbia River Basin (CRB) and Sacramento-San Joaquin River (SSJ) Basin. Results based on global and regional simulations show that by mid-century, the average regional warming of 1 to 2.5 degree C strongly affects snowpack in the western U.S. Along coastal mountains, reduction in annual snowpack was about 70% as indicated by the regional simulations. Besides changes in mean temperature, precipitation, and snowpack, cold season extreme daily precipitation increased by 5 to 15 mm/day (15-20%) along the Cascades and the Sierra. The warming resulted in increased rainfall at the expense of reduced snowfall, and reduced snow accumulation (or earlier snowmelt) during the cold season. In the CRB, these changes were accompanied by more frequent rain-on-snow events. Overall, they induced higher likelihood of wintertime flooding and reduced runoff and soil moisture in the summer. Changes in surface water and energy budgets in the CRB and SSJ basin were affected mainly by changes in surface temperature, which were statistically significant at the 0.95 confidence level. Changes in precipitation, while spatially incoherent, were not statistically significant except for the drying trend during summer. Because snow and runoff are highly sensitive to spatial distributions of temperature and precipitation, this study shows that (1) downscaling provides more realistic estimates of hydrologic impacts in mountainous regions such as the western U.S., and (2) despite relatively small changes in temperature and precipitation, changes in snowpack and runoff can be much larger on monthly to seasonal time scales because the effects of temperature and precipitation are integrated over time and space through various surface hydrological and land-atmosphere feedback processes. Although the results reported in this study were derived from an ensemble of regional climate simulations driven by a global climate model that displays low climate sensitivity compared with most other models, climate change was found to significantly affect water resources in the western U.S. by the mid twenty-first century. JF - Climatic Change AU - Leung, L R AU - Qian, Y AU - Bian, X AU - Washington, WM AU - Han, J AU - Roads, JO AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, U.S.A., ruby.leung@pnl.gov Y1 - 2004/01// PY - 2004 DA - Jan 2004 SP - 75 EP - 113 PB - Kluwer Academic Publishers VL - 62 IS - 1-3 SN - 0165-0009, 0165-0009 KW - Mesoscale Model 5 KW - Parallel Climate Model KW - Snowpack KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Meteorological & Geoastrophysical Abstracts KW - Freshwater KW - Q5 01522:Protective measures and control KW - M2 551.583:Variations (551.583) KW - M2 551.581:Latitudinal Influences (551.581) KW - M2 556.1:Hydrologic Cycle (556.1) KW - Q2 02171:Dynamics of lakes and rivers KW - SW 2010:Control of water on the surface UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18062340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Mid-Century+Ensemble+Regional+Climate+Change+Scenarios+for+the+Western+United+States&rft.au=Leung%2C+L+R%3BQian%2C+Y%3BBian%2C+X%3BWashington%2C+WM%3BHan%2C+J%3BRoads%2C+JO&rft.aulast=Leung&rft.aufirst=L&rft.date=2004-01-01&rft.volume=62&rft.issue=1-3&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/10.1023%2FB%3ACLIM.0000013692.50640.55 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-07-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Freshwater DO - http://dx.doi.org/10.1023/B:CLIM.0000013692.50640.55 ER - TY - JOUR T1 - Improved detection of multi-phosphorylated peptides in the presence of phosphoric acid in liquid chromatography/mass spectrometry AN - 17876086; 5846565 AB - In contrast to lower phosphorylation states (e.g. the tryptic monophosphopeptide FQpSEEQQQTEDELQDK from bovine beta -casein), the specific detection of multi-phosphorylated peptides (e.g. the tetraphosphopeptide RELEELNVPGEIVEpSLpSpSpSEESITR from tryptic digestion of bovine beta -casein) has often been problematic for liquid chromatographic mass spectrometric (LC/MS) analysis owing to their high affinity for adsorption to exposed surfaces. We observed an enhancement in the overall detection of phosphopeptides on addition of phosphoric acid (0.1-1.0%) to the sample solution; a 10-fold increase in sensitivity was determined for the detection of two tryptic phosphopeptides and also a significant improvement in the detection of the tetraphosphopeptide. Using capillary LC with ion trap tandem MS for detection and identification, the achievable detection limits were 50 fmol and 50 pmol for the monophosphopeptide and the tetraphosphopeptide, respectively. Phosphoric acid is believed to act as a blocking agent to available silanol groups on both the silica capillary surface and the C sub(18)-bonded stationary phase silica surface. JF - Journal of Mass Spectrometry AU - Kim, J AU - Camp, D G AU - Smith, R D AD - Biological Sciences Division, MSIN K8-98, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352 USA Y1 - 2004 PY - 2004 DA - 2004 SP - 208 EP - 215 VL - 39 IS - 2 SN - 1076-5174, 1076-5174 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - stationary phase KW - Silica KW - Phosphorylation KW - Liquid chromatography KW - Adsorption KW - Casein KW - Mass spectroscopy KW - phosphoric acid KW - W4 130:General Biomedical Engineering: Tools & Techniques KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17876086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Mass+Spectrometry&rft.atitle=Improved+detection+of+multi-phosphorylated+peptides+in+the+presence+of+phosphoric+acid+in+liquid+chromatography%2Fmass+spectrometry&rft.au=Kim%2C+J%3BCamp%2C+D+G%3BSmith%2C+R+D&rft.aulast=Kim&rft.aufirst=J&rft.date=2004-01-01&rft.volume=39&rft.issue=2&rft.spage=208&rft.isbn=&rft.btitle=&rft.title=Journal+of+Mass+Spectrometry&rft.issn=10765174&rft_id=info:doi/10.1002%2Fjms.593 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - phosphoric acid; Mass spectroscopy; Silica; Casein; Adsorption; Phosphorylation; Liquid chromatography; stationary phase DO - http://dx.doi.org/10.1002/jms.593 ER - TY - BOOK T1 - Gorges, clays, and coulees; field trip guide 1 and 3; Missoula floods and the Channeled Scabland; ice-age floods through the western Channeled Scabland AN - 1400619063; 2013-055264 JF - Gorges, clays, and coulees; field trip guide 1 and 3; Missoula floods and the Channeled Scabland; ice-age floods through the western Channeled Scabland AU - Bjornstad, Bruce Y1 - 2004 PY - 2004 DA - 2004 SP - 30 PB - Clay Minerals Society KW - United States KW - clay KW - volcanic rocks KW - geologic hazards KW - igneous rocks KW - guidebook KW - gorges KW - field trips KW - clastic dikes KW - road log KW - soft sediment deformation KW - Cenozoic KW - bedding plane irregularities KW - erratics KW - mass movements KW - basalts KW - sediments KW - floods KW - megaripples KW - sedimentary structures KW - Washington KW - Quaternary KW - valleys KW - clastic sediments KW - Lake Missoula KW - bars KW - channels KW - coulees KW - landslides KW - natural hazards KW - Pleistocene KW - Channeled Scabland KW - catastrophes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1400619063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bjornstad%2C+Bruce&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2004-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Gorges%2C+clays%2C+and+coulees%3B+field+trip+guide+1+and+3%3B+Missoula+floods+and+the+Channeled+Scabland%3B+ice-age+floods+through+the+western+Channeled+Scabland&rft.title=Gorges%2C+clays%2C+and+coulees%3B+field+trip+guide+1+and+3%3B+Missoula+floods+and+the+Channeled+Scabland%3B+ice-age+floods+through+the+western+Channeled+Scabland&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - 41st annual meeting of the Clay Minerals Society, June 19-24, 2004, Richlaand, WA N1 - Last updated - 2013-07-18 ER - TY - JOUR T1 - Toxicity of radionuclide and heavy metals to Desulfovibrio desulfuricans AN - 1151913367; 2012-098107 JF - Abstracts - Annual Meeting - Society of Environmental Toxicology and Chemistry (SETAC) AU - Sani, R K AU - Peyton, B M AU - Dohnalkova, A Y1 - 2004 PY - 2004 DA - 2004 SP - 67 EP - 68 PB - Society of Environmental Toxicology and Chemistry, [location varies] VL - 25 KW - toxic materials KW - isotopes KW - copper KW - pollution KW - lead KW - suspended materials KW - Desulfovibrio desulfuricans KW - remediation KW - radioactive isotopes KW - toxicity KW - transport KW - metals KW - bacteria KW - oxides KW - uranium KW - uraninite KW - actinides KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151913367?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+Annual+Meeting+-+Society+of+Environmental+Toxicology+and+Chemistry+%28SETAC%29&rft.atitle=Toxicity+of+radionuclide+and+heavy+metals+to+Desulfovibrio+desulfuricans&rft.au=Sani%2C+R+K%3BPeyton%2C+B+M%3BDohnalkova%2C+A&rft.aulast=Sani&rft.aufirst=R&rft.date=2004-01-01&rft.volume=25&rft.issue=&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=Abstracts+-+Annual+Meeting+-+Society+of+Environmental+Toxicology+and+Chemistry+%28SETAC%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourth SETAC world congress and 25th annual meeting in North America N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - SuppNotes - ISSN 1087-8939 N1 - Last updated - 2012-11-15 N1 - CODEN - #04767 N1 - SubjectsTermNotLitGenreText - actinides; bacteria; copper; Desulfovibrio desulfuricans; heavy metals; isotopes; lead; metals; oxides; pollution; radioactive isotopes; remediation; suspended materials; toxic materials; toxicity; transport; uraninite; uranium ER - TY - JOUR T1 - Investigations of Fe and Mn bioreduction in unconsolidated clastic sediments AN - 855195925; 2011-024553 JF - Eos, Transactions, American Geophysical Union AU - McKinley, J P AU - Zachara, J M AU - Fredrickson, J K AU - Heald, S M AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - Abstract B12C EP - 0805 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - iron oxides KW - manganese KW - iron KW - XANES spectra KW - Cenozoic KW - Tennessee KW - sediments KW - oxides KW - spectra KW - reduction KW - pH KW - Oak Ridge National Laboratory KW - Washington KW - clastic sediments KW - Hanford Site KW - Ringold Formation KW - X-ray spectra KW - Tertiary KW - biogenic processes KW - precipitation KW - Neogene KW - metals KW - bacteria KW - Pliocene KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855195925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Investigations+of+Fe+and+Mn+bioreduction+in+unconsolidated+clastic+sediments&rft.au=McKinley%2C+J+P%3BZachara%2C+J+M%3BFredrickson%2C+J+K%3BHeald%2C+S+M%3BAnonymous&rft.aulast=McKinley&rft.aufirst=J&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; Cenozoic; clastic sediments; Hanford Site; iron; iron oxides; manganese; metals; Neogene; Oak Ridge National Laboratory; oxides; pH; Pliocene; precipitation; reduction; Ringold Formation; sediments; spectra; Tennessee; Tertiary; United States; Washington; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Interaction of magnesium and inorganic carbon species with the dissolving calcite surface AN - 855195090; 2011-024540 JF - Eos, Transactions, American Geophysical Union AU - Amonette, J E AU - Arvidson, R S AU - Collier, M AU - Davis, K J AU - Vinson, M AU - Luttge, A AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - Abstract B12C EP - 0792 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - biomineralization KW - alkaline earth metals KW - magnesium KW - crystal surface KW - terrestrial environment KW - metals KW - marine environment KW - carbon KW - crystal growth KW - carbonates KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855195090?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Interaction+of+magnesium+and+inorganic+carbon+species+with+the+dissolving+calcite+surface&rft.au=Amonette%2C+J+E%3BArvidson%2C+R+S%3BCollier%2C+M%3BDavis%2C+K+J%3BVinson%2C+M%3BLuttge%2C+A%3BAnonymous&rft.aulast=Amonette&rft.aufirst=J&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; biomineralization; calcite; carbon; carbonates; crystal growth; crystal surface; magnesium; marine environment; metals; terrestrial environment ER - TY - JOUR T1 - Interaction of strontium with the calcite cleavage surface AN - 853221561; 2011-020550 JF - Eos, Transactions, American Geophysical Union AU - Vinson, Michael D AU - Arvidson, Rolf S AU - Amonette, James E AU - Luttge, Andreas AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - Abstract B21C EP - 0726 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - cycles KW - Sr-90 KW - migration KW - alkaline earth metals KW - experimental studies KW - terrestrial environment KW - contaminant plumes KW - isotopes KW - radioactivity KW - pollutants KW - pollution KW - solution KW - radioactive isotopes KW - atomic force microscopy data KW - metals KW - trace metals KW - carbonates KW - strontium KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853221561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Interaction+of+strontium+with+the+calcite+cleavage+surface&rft.au=Vinson%2C+Michael+D%3BArvidson%2C+Rolf+S%3BAmonette%2C+James+E%3BLuttge%2C+Andreas%3BAnonymous&rft.aulast=Vinson&rft.aufirst=Michael&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atomic force microscopy data; carbonates; contaminant plumes; cycles; experimental studies; isotopes; metals; migration; pollutants; pollution; radioactive isotopes; radioactivity; soils; solution; Sr-90; strontium; terrestrial environment; trace metals ER - TY - JOUR T1 - Optimizing liquid effluent monitoring at a large nuclear complex. AN - 71579027; 15160897 AB - Effluent monitoring typically requires a large number of analytes and samples during the initial or startup phase of a facility. Once a baseline is established, the analyte list and sampling frequency may be reduced. Although there is a large body of literature relevant to the initial design, few, if any, published papers exist on updating established effluent monitoring programs. This paper statistically evaluates four years of baseline data to optimize the liquid effluent monitoring efficiency of a centralized waste treatment and disposal facility at a large defense nuclear complex. Specific objectives were to: (1) assess temporal variability in analyte concentrations, (2) determine operational factors contributing to waste stream variability, (3) assess the probability of exceeding permit limits, and (4) streamline the sampling and analysis regime. Results indicated that the probability of exceeding permit limits was one in a million under normal facility operating conditions, sampling frequency could be reduced, and several analytes could be eliminated. Furthermore, indicators such as gross alpha and gross beta measurements could be used in lieu of more expensive specific isotopic analyses (radium, cesium-137, and strontium-90) for routine monitoring. Study results were used by the state regulatory agency to modify monitoring requirements for a new discharge permit, resulting in an annual cost savings of US dollars 223,000. This case study demonstrates that statistical evaluation of effluent contaminant variability coupled with process knowledge can help plant managers and regulators streamline analyte lists and sampling frequencies based on detection history and environmental risk. JF - Environmental management AU - Chou, Charissa J AU - Barnett, D Brent AU - Johnson, Vernon G AU - Olson, Phil M AD - Pacific Northwest National Laboratory, PO Box 999, Richland, Washington 99352, USA. Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 720 EP - 734 VL - 32 IS - 6 SN - 0364-152X, 0364-152X KW - Water Pollutants, Radioactive KW - 0 KW - Index Medicus KW - Reference Values KW - Cost Control KW - Cost Savings KW - Risk Assessment KW - Water Pollutants, Radioactive -- economics KW - Power Plants KW - Environmental Monitoring -- economics KW - Water Pollutants, Radioactive -- analysis KW - Waste Disposal, Fluid -- economics KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71579027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+management&rft.atitle=Optimizing+liquid+effluent+monitoring+at+a+large+nuclear+complex.&rft.au=Chou%2C+Charissa+J%3BBarnett%2C+D+Brent%3BJohnson%2C+Vernon+G%3BOlson%2C+Phil+M&rft.aulast=Chou&rft.aufirst=Charissa&rft.date=2003-12-01&rft.volume=32&rft.issue=6&rft.spage=720&rft.isbn=&rft.btitle=&rft.title=Environmental+management&rft.issn=0364152X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-06-08 N1 - Date created - 2004-05-26 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Transformation of 2-line ferrihydrite to 6-line ferrihydrite under oxic and anoxic conditions AN - 51884319; 2004-018143 AB - Mineralogical transformations of 2-line ferrihydrite were studied under oxic and Fe (super 3+) -reducing conditions to establish the role, if any, of 6-line ferrihydrite ("well" organized ferrihydrite) in the reaction pathway and as a final product. In oxic experiments, concentrated suspensions (0.42 mol/L Fe (super 3+) in 0.1 mol/L NaClO (sub 4) ) of freshly synthesized 2-line ferrihydrite, with and without 3% Ni (super 2+) , were aged at an initial pH = 7.2 (unbuffered and unadjusted) and 25 degrees C for more than three years. X-ray diffraction, transmission electron microscopy, and Mossbauer spectroscopy measurements were performed on the solids after different aging periods. The primary mineralogical products observed were 6-line ferrihydrite and goethite, with minor hematite. Aggregation and crystallization of the 2-line ferrihydrite liberated protons and depressed suspension pH, but coprecipitated Ni (super 2+) retarded this process. The joint, interrelated effects of Ni and pH influenced both the extent of conversion of 2-line ferrihydrite and the identity of the major transformation products. Six-line ferrihydrite dominated in the Ni ferrihydrite suspension, whereas goethite dominated in the absence of Ni. Aggregation-induced crystallization of 2-line ferrihydrite particles seemed responsible for 6-line ferrihydrite formation. Mineralogical changes to Ni ferrihydrite under anaerobic conditions were investigated at circumneutral pH using the Fe (super 3+) -reducing bacterium Shewanella putrefaciens. Residual 6-line ferrihydrite dominated bioreduced samples that also contained goethite and magnetite. The conversion of 2-line ferrihydrite to 6-line ferrihydrite was considerably more rapid under anaerobic conditions. The sorption of biogenic Fe (super 2+) apparently induced intra-aggregate transformation of 2-line ferrihydrite to 6-line ferrihydrite. Collectively, abiotic and biotic studies indicated that 6-line ferrihydrite can be a transformation product of 2-line ferrihydrite, especially when 2-line ferrihydrite is undergoing transformation to more stable hematite or magnetite. JF - American Mineralogist AU - Kukkadapu, Ravi K A2 - Becker, Udo A2 - Jambor, John L. A2 - Lumpkin, Gregory R. A2 - Pasteris, Jill Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1903 EP - 1913 PB - Mineralogical Society of America, Washington, DC VL - 88 IS - 11-12, Part 2 SN - 0003-004X, 0003-004X KW - X-ray diffraction data KW - ferrihydrite KW - iron KW - aerobic environment KW - hematite KW - metals KW - oxides KW - anaerobic environment KW - spectra KW - ion exchange KW - transformations KW - geochemistry KW - pH KW - Mossbauer spectra KW - magnetite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51884319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Transformation+of+2-line+ferrihydrite+to+6-line+ferrihydrite+under+oxic+and+anoxic+conditions&rft.au=Kukkadapu%2C+Ravi+K&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2003-12-01&rft.volume=88&rft.issue=11-12%2C+Part+2&rft.spage=1903&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 47 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - aerobic environment; anaerobic environment; ferrihydrite; geochemistry; hematite; ion exchange; iron; magnetite; metals; Mossbauer spectra; oxides; pH; spectra; transformations; X-ray diffraction data ER - TY - JOUR T1 - Aluminum effect on dissolution and precipitation under hyperalkaline conditions; II, Solid phase transformations AN - 51825762; 2004-052882 JF - Journal of Environmental Quality AU - Qafoku, Nikolla P AU - Ainsworth, Calvin C AU - Szecsody, James E AU - Bish, David L AU - Young, James S AU - McCready, David E AU - Qafoku, Odeta S Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 2364 EP - 2372 PB - American Society of Agronomy, [and] Crop Science Society of America, [and] Soil Science Society of America, Madison, WI VL - 32 IS - 6 SN - 0047-2425, 0047-2425 KW - United States KW - X-ray diffraction data KW - underground storage tanks KW - waste disposal sites KW - salinity KW - solution KW - sedimentary rocks KW - mineral composition KW - cesium KW - aluminum KW - sediments KW - X-ray fluorescence spectra KW - alkalinity KW - spectra KW - high-level waste KW - alkaline earth metals KW - bauxite KW - Washington KW - alkali metals KW - Hanford Site KW - solubility KW - liquid waste KW - precipitation KW - metals KW - uranium KW - waste disposal KW - transformations KW - actinides KW - strontium KW - SEM data KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51825762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Quality&rft.atitle=Aluminum+effect+on+dissolution+and+precipitation+under+hyperalkaline+conditions%3B+II%2C+Solid+phase+transformations&rft.au=Qafoku%2C+Nikolla+P%3BAinsworth%2C+Calvin+C%3BSzecsody%2C+James+E%3BBish%2C+David+L%3BYoung%2C+James+S%3BMcCready%2C+David+E%3BQafoku%2C+Odeta+S&rft.aulast=Qafoku&rft.aufirst=Nikolla&rft.date=2003-12-01&rft.volume=32&rft.issue=6&rft.spage=2364&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Quality&rft.issn=00472425&rft_id=info:doi/ L2 - http://jeq.scijournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 17 N1 - PubXState - WI N1 - Document feature - illus. incl. table N1 - Last updated - 2012-06-07 N1 - CODEN - JEVQAA N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; alkaline earth metals; alkalinity; aluminum; bauxite; cesium; Hanford Site; high-level waste; liquid waste; metals; mineral composition; precipitation; salinity; sedimentary rocks; sediments; SEM data; solubility; solution; spectra; strontium; transformations; underground storage tanks; United States; uranium; Washington; waste disposal; waste disposal sites; X-ray diffraction data; X-ray fluorescence spectra ER - TY - JOUR T1 - Temporal shifts in the geochemistry and microbial community structure of an ultradeep mine borehole following isolation AN - 51790446; 2004-078957 AB - A borehole draining a water-bearing dyke fracture at 3.2-km depth in a South African Au mine was isolated from the open mine environment. Geochemical, stable isotopic, nucleic acid-based, and phospholipid fatty acid (PLFA) analyses were employed as culture-independent means for assessing shifts in the microbial community and habitat as the system equilibrated with the native rock-water environment. Over a two-month period, the pH increased from 5.5 to 7.4, concurrent with a drop in pe from -2 to -3. Whereas rDNAs related to Desulfotomaculum spp. represented the major clone type encountered throughout, lipid biomarker profiling along with 16S rDNA clone library and terminal restriction fragment length polymorphism (T-RFLP) analyses indicated the emergence of other Gram-positive and deeply-branching lineages in samples during the later stages of the equilibration period. A biofilm that formed on the mine wall below the borehole produced abundant rDNAs related to the alpha Proteobacteria. beta - and gamma -Proteobacteria appeared to transiently bloom in the borehole shortly after isolation. Chemical modeling and sulfur isotope analyses of the borehole effluent indicated that microbial sulfate reduction was the major terminal electron-accepting process shortly after isolation, whereas Fe (super +3) reduction dominated towards the end of the experiment. The persistence of Desulfotomaculum-like bacteria throughout suggests that these organisms adapted to changing geochemical conditions as the redox decreased and pH increased following the isolation of the borehole from the mine atmosphere. The restoration of anaerobic aquatic chemistry to this borehole environment may have allowed microbiota indigenous to the local basalt aquifer to become more dominant among the diverse collection of bacterial lineages present in the borehole. JF - Geomicrobiology Journal AU - Moser, D P AU - Onstott, T C AU - Fredrickson, J K AU - Brockman, F J AU - Balkwill, D L AU - Drake, G R AU - Pfiffner, S M AU - White, D C AU - Baker, B J AU - Hoek, J Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 517 EP - 548 PB - Taylor & Francis, London VL - 20 IS - 6 SN - 0149-0451, 0149-0451 KW - mines KW - Driefontein Mine KW - acid mine drainage KW - Gauteng South Africa KW - geomicrobiology KW - fissures KW - pollution KW - hydrochemistry KW - ground water KW - aquifers KW - Johannesburg South Africa KW - boreholes KW - water-rock interaction KW - isolation KW - Southern Africa KW - biofilms KW - bacteria KW - anaerobic environment KW - Africa KW - South Africa KW - geochemistry KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51790446?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Temporal+shifts+in+the+geochemistry+and+microbial+community+structure+of+an+ultradeep+mine+borehole+following+isolation&rft.au=Moser%2C+D+P%3BOnstott%2C+T+C%3BFredrickson%2C+J+K%3BBrockman%2C+F+J%3BBalkwill%2C+D+L%3BDrake%2C+G+R%3BPfiffner%2C+S+M%3BWhite%2C+D+C%3BBaker%2C+B+J%3BHoek%2C+J&rft.aulast=Moser&rft.aufirst=D&rft.date=2003-12-01&rft.volume=20&rft.issue=6&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/10.1080%2F01490450390249280 L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 73 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - acid mine drainage; Africa; anaerobic environment; aquifers; bacteria; biofilms; boreholes; Driefontein Mine; fissures; Gauteng South Africa; geochemistry; geomicrobiology; ground water; hydrochemistry; isolation; Johannesburg South Africa; microorganisms; mines; pollution; South Africa; Southern Africa; water-rock interaction DO - http://dx.doi.org/10.1080/01490450390249280 ER - TY - JOUR T1 - Surface structure effects on direct reduction of iron oxides by Shewanella oneidensis AN - 51751628; 2005-014285 AB - The atomic and electronic structure of mineral surfaces affects many environmentally important processes such as adsorption phenomena. They are however rarely considered relevant to dissimilatory bacterial reduction of iron and manganese minerals. In this regard, surface area and thermodynamics are more commonly considered. Here we take a first step towards understanding the nature of the influence of mineral surface structure upon the rate of electron transfer from Shewanella oneidensis strain MR-1 outer membrane proteins to the mineral surface and the subsequent effect upon cell "activity". Cell accumulation has been used as a proxy for cell activity at three iron oxide single crystal faces; hematite (001), magnetite (111) and magnetite (100). Clear differences in cell accumulation at, and release from the surfaces are observed, with significantly more cells accumulating at hematite (001) compared to either magnetite face whilst relatively more cells are released into the overlying aqueous phase from the two magnetite faces than hematite. Modeling of the electron transfer process to the different mineral surfaces from a decaheme (protoporphyrin rings containing a central hexacoordinate iron atom), outer membrane-bound cytochrome of S. oneidensis has been accomplished by employing both Marcus and ab initio density functional theories. The resultant model of electron transfer to the three oxide faces predicts that over the entire range of expected electron transfer distances the highest electron transfer rates occur at the hematite (001) surface, mirroring the observed cell accumulation data. Electron transfer rates to either of the two magnetite surfaces are slower, with magnetite (111) slower than hematite (001) by approximately two orders of magnitude. A lack of knowledge regarding the structural details of the heme-mineral interface, especially in regards to atomic distances and relative orientations of hemes and surface iron atoms and the conformation of the protein envelope, precludes a more thorough analysis. However, the results of the modeling concur with the empirical observation that mineral surface structure has a clear influence on mineral surface-associated cell activity. Thus surface structure effects must be accounted for in future studies of cell-mineral interactions. JF - Geochimica et Cosmochimica Acta AU - Neal, Andrew L AU - Rosso, Kevin M AU - Geesey, Gill G AU - Gorby, Yuri A AU - Little, Brenda J Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 4489 EP - 4503 PB - Pergamon, Oxford VL - 67 IS - 23 SN - 0016-7037, 0016-7037 KW - biodegradation KW - iron oxides KW - crystal structure KW - Shewanella KW - iron KW - surface structure KW - geochemical cycle KW - theoretical studies KW - biogenic processes KW - chemical reactions KW - hematite KW - metals KW - Shewanella oneidensis KW - bacteria KW - oxides KW - anaerobic environment KW - surface reactions KW - reduction KW - mobility KW - geochemistry KW - magnetite KW - growth KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51751628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Surface+structure+effects+on+direct+reduction+of+iron+oxides+by+Shewanella+oneidensis&rft.au=Neal%2C+Andrew+L%3BRosso%2C+Kevin+M%3BGeesey%2C+Gill+G%3BGorby%2C+Yuri+A%3BLittle%2C+Brenda+J&rft.aulast=Neal&rft.aufirst=Andrew&rft.date=2003-12-01&rft.volume=67&rft.issue=23&rft.spage=4489&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2803%2900386-7 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 89 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anaerobic environment; bacteria; biodegradation; biogenic processes; chemical reactions; crystal structure; geochemical cycle; geochemistry; growth; hematite; iron; iron oxides; magnetite; metals; mobility; oxides; reduction; Shewanella; Shewanella oneidensis; surface reactions; surface structure; theoretical studies DO - http://dx.doi.org/10.1016/S0016-7037(03)00386-7 ER - TY - JOUR T1 - Modeling the influence of transport on chemical reactivity in microbial membranes; mineral precipitation/dissolution reactions AN - 51570240; 2006-052724 JF - Eos, Transactions, American Geophysical Union AU - Felmy, Andrew Robert AU - Liu, Chongxuan AU - Clark, Susan AU - Straatsma, Tjerk AU - Rustad, James AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - Abstract B11A EP - 07 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - models KW - reactivity KW - diffusion KW - transport KW - precipitation KW - biochemistry KW - bacteria KW - solution KW - simulation KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51570240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Modeling+the+influence+of+transport+on+chemical+reactivity+in+microbial+membranes%3B+mineral+precipitation%2Fdissolution+reactions&rft.au=Felmy%2C+Andrew+Robert%3BLiu%2C+Chongxuan%3BClark%2C+Susan%3BStraatsma%2C+Tjerk%3BRustad%2C+James%3BAnonymous&rft.aulast=Felmy&rft.aufirst=Andrew&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; diffusion; geochemistry; models; precipitation; reactivity; simulation; solution; transport ER - TY - JOUR T1 - A practical multifluid flow model including mobile, residual, and entrapped NAPL AN - 51256025; 2008-063480 JF - Eos, Transactions, American Geophysical Union AU - Oostrom, M AU - White, M D AU - Lenhard, R J AU - Wietsma, T W AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - nonaqueous phase liquids KW - INEEL KW - laboratory studies KW - Idaho KW - experimental studies KW - numerical models KW - pollutants KW - pollution KW - preferential flow KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51256025?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=A+practical+multifluid+flow+model+including+mobile%2C+residual%2C+and+entrapped+NAPL&rft.au=Oostrom%2C+M%3BWhite%2C+M+D%3BLenhard%2C+R+J%3BWietsma%2C+T+W%3BAnonymous&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F671&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - experimental studies; Idaho; INEEL; laboratory studies; nonaqueous phase liquids; numerical models; pollutants; pollution; preferential flow; United States ER - TY - JOUR T1 - The subsurface flow and transport laboratory; a new Department of Energy user's facility for intermediate-scale experimentation AN - 51255195; 2008-063486 JF - Eos, Transactions, American Geophysical Union AU - Wietsma, T W AU - Oostrom, M AU - Foster, N S AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - U. S. Department of Energy KW - experimental studies KW - Pacific Northwest National Laboratory KW - transport KW - government agencies KW - pollution KW - preferential flow KW - simulation KW - research KW - ground water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51255195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+subsurface+flow+and+transport+laboratory%3B+a+new+Department+of+Energy+user%27s+facility+for+intermediate-scale+experimentation&rft.au=Wietsma%2C+T+W%3BOostrom%2C+M%3BFoster%2C+N+S%3BAnonymous&rft.aulast=Wietsma&rft.aufirst=T&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F672&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - experimental studies; government agencies; ground water; Pacific Northwest National Laboratory; pollution; preferential flow; research; simulation; transport; U. S. Department of Energy ER - TY - JOUR T1 - Tracing the sources and history of subsurface contamination at the Hanford Site in Washington using high-precision uranium isotopic measurements AN - 51255047; 2008-063469 JF - Eos, Transactions, American Geophysical Union AU - Christensen, John N AU - Dresel, P Evan AU - Conrad, Mark E AU - Maher, Kate AU - DePaolo, Donald J AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - plumes KW - Washington KW - contaminant plumes KW - isotopes KW - isotope ratios KW - pollution KW - Hanford Site KW - ground water KW - radioactive isotopes KW - metals KW - uranium KW - U-238/U-234 KW - U-238/U-235 KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51255047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Tracing+the+sources+and+history+of+subsurface+contamination+at+the+Hanford+Site+in+Washington+using+high-precision+uranium+isotopic+measurements&rft.au=Christensen%2C+John+N%3BDresel%2C+P+Evan%3BConrad%2C+Mark+E%3BMaher%2C+Kate%3BDePaolo%2C+Donald+J%3BAnonymous&rft.aulast=Christensen&rft.aufirst=John&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F669&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; contaminant plumes; ground water; Hanford Site; isotope ratios; isotopes; metals; plumes; pollution; radioactive isotopes; U-238/U-234; U-238/U-235; United States; uranium; Washington ER - TY - JOUR T1 - Evidence for the occurrence of microbial iron reduction in bulk aerobic unsaturated sediments AN - 51252208; 2008-066757 JF - Eos, Transactions, American Geophysical Union AU - Cooper, David C AU - Kukkadapu, Ravi K AU - Smith, William A AU - Fox, Don T AU - Plummer, Mitchell A AU - Hull, Laurence C AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - F315 EP - F316 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - oxygen KW - iron minerals KW - pollutants KW - unsaturated zone KW - pollution KW - simulation KW - iron KW - ground water KW - aerobic environment KW - nutrients KW - mineral composition KW - decontamination KW - soil pollution KW - metals KW - bacteria KW - sediments KW - DNA KW - reduction KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51252208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Evidence+for+the+occurrence+of+microbial+iron+reduction+in+bulk+aerobic+unsaturated+sediments&rft.au=Cooper%2C+David+C%3BKukkadapu%2C+Ravi+K%3BSmith%2C+William+A%3BFox%2C+Don+T%3BPlummer%2C+Mitchell+A%3BHull%2C+Laurence+C%3BAnonymous&rft.aulast=Cooper&rft.aufirst=David&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F315&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aerobic environment; bacteria; decontamination; DNA; ground water; iron; iron minerals; metals; mineral composition; nutrients; oxygen; pollutants; pollution; reduction; sediments; simulation; soil pollution; soils; unsaturated zone ER - TY - JOUR T1 - The global distribution of candidate geological CO2 reservoirs and their economic implications for deployment of carbon capture technology AN - 51090822; 2008-080866 JF - Eos, Transactions, American Geophysical Union AU - Friedmann, Julio AU - Edmonds, James A AU - Dooley, James J AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - technology KW - underground storage KW - injection KW - pollution KW - enhanced recovery KW - cost KW - reservoir rocks KW - ground water KW - carbon dioxide KW - aquifers KW - waste management KW - mitigation KW - underground installations KW - greenhouse effect KW - point sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51090822?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+global+distribution+of+candidate+geological+CO2+reservoirs+and+their+economic+implications+for+deployment+of+carbon+capture+technology&rft.au=Friedmann%2C+Julio%3BEdmonds%2C+James+A%3BDooley%2C+James+J%3BAnonymous&rft.aulast=Friedmann&rft.aufirst=Julio&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F569&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; carbon dioxide; cost; enhanced recovery; greenhouse effect; ground water; injection; mitigation; point sources; pollution; reservoir rocks; technology; underground installations; underground storage; waste management ER - TY - JOUR T1 - Modeling episodic surface runoff in an arid environment AN - 50860352; 2008-096599 JF - Eos, Transactions, American Geophysical Union AU - Waichler, Scott R AU - Wigmosta, Mark S AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - Washington KW - terrestrial environment KW - sediment transport KW - rainfall KW - arid environment KW - surface water KW - prediction KW - Hanford Site KW - water balance KW - variations KW - temperature KW - aquifers KW - models KW - environmental management KW - recharge KW - sensitivity analysis KW - runoff KW - drainage basins KW - frozen ground KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50860352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Modeling+episodic+surface+runoff+in+an+arid+environment&rft.au=Waichler%2C+Scott+R%3BWigmosta%2C+Mark+S%3BAnonymous&rft.aulast=Waichler&rft.aufirst=Scott&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F599&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; arid environment; drainage basins; environmental management; frozen ground; Hanford Site; hydrology; models; prediction; rainfall; recharge; runoff; sediment transport; sensitivity analysis; surface water; temperature; terrestrial environment; United States; variations; Washington; water balance ER - TY - JOUR T1 - Maximum likelihood Bayesian averaging of spatial variability models in unsaturated fractured tuff AN - 50596031; 2008-096619 JF - Eos, Transactions, American Geophysical Union AU - Ye, Ming AU - Neuman, Shlomo P AU - Meyer, Philip D AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - aquifer vulnerability KW - volcanic rocks KW - Bayesian analysis KW - igneous rocks KW - kriging KW - unsaturated zone KW - reservoir rocks KW - ground water KW - Apache Leap Research Site KW - spatial variations KW - tuff KW - central Arizona KW - uncertainty KW - Pinal County Arizona KW - variance analysis KW - statistical analysis KW - prediction KW - pollution KW - migration of elements KW - least-squares analysis KW - aquifers KW - models KW - pyroclastics KW - variograms KW - Arizona KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50596031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Maximum+likelihood+Bayesian+averaging+of+spatial+variability+models+in+unsaturated+fractured+tuff&rft.au=Ye%2C+Ming%3BNeuman%2C+Shlomo+P%3BMeyer%2C+Philip+D%3BAnonymous&rft.aulast=Ye&rft.aufirst=Ming&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F609&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - Apache Leap Research Site; aquifer vulnerability; aquifers; Arizona; Bayesian analysis; central Arizona; ground water; igneous rocks; kriging; least-squares analysis; migration of elements; models; permeability; Pinal County Arizona; pollution; prediction; pyroclastics; reservoir rocks; spatial variations; statistical analysis; tuff; uncertainty; United States; unsaturated zone; variance analysis; variograms; volcanic rocks ER - TY - JOUR T1 - Monte-Carlo simulation of bacterial transport in a heterogeneous aquifer with correlated hydrologic and reactive properties AN - 50550123; 2009-002250 JF - Eos, Transactions, American Geophysical Union AU - Scheibe, Timothy D AU - Anonymous Y1 - 2003/12// PY - 2003 DA - December 2003 SP - 1 PB - American Geophysical Union, Washington, DC VL - 84 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - Virginia KW - three-dimensional models KW - pollutants KW - Monte Carlo analysis KW - statistical analysis KW - pollution KW - mathematical models KW - Northampton County Virginia KW - simulation KW - ground water KW - aquifers KW - reactivity KW - Oyster Virginia KW - transport KW - mathematical methods KW - bacteria KW - hydrodynamics KW - hydraulic conductivity KW - heterogeneity KW - water pollution KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50550123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Monte-Carlo+simulation+of+bacterial+transport+in+a+heterogeneous+aquifer+with+correlated+hydrologic+and+reactive+properties&rft.au=Scheibe%2C+Timothy+D%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=Timothy&rft.date=2003-12-01&rft.volume=84&rft.issue=46%2C+Suppl.&rft.spage=F589&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2003 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; field studies; ground water; heterogeneity; hydraulic conductivity; hydrodynamics; hydrology; mathematical methods; mathematical models; Monte Carlo analysis; Northampton County Virginia; Oyster Virginia; pollutants; pollution; reactivity; simulation; statistical analysis; three-dimensional models; transport; United States; Virginia; water pollution ER - TY - JOUR T1 - The Sensitivity of Precipitation and Snowpack Simulations to Model Resolution via Nesting in Regions of Complex Terrain AN - 18054923; 5808954 AB - This paper examines the sensitivity of regional climate simulations to increasing spatial resolution via nesting by means of a 20-yr simulation of the western United States at 40-km resolution and a 5-yr simulation at 13-km resolution for the Pacific Northwest and California. The regional simulation at 40-km resolution shows a lack of precipitation along coastal hills, good agreement with observations on the windward slopes of the Cascades and Sierra Nevada, but overprediction on the leeside and the basins beyond. Snowpack is grossly underpredicted throughout the western United States when compared against snowpack telemetry (snotel) observations. During winter, higher spatial resolution mainly improves the precipitation simulation in the coastal hills and basins. Along the Cascades and the Sierra Nevada range, precipitation is strongly amplified at the higher spatial resolution. Higher resolution generally improves the spatial distribution of precipitation to yield a higher spatial correlation between simulations and observations. During summer, higher resolution improves not only the spatial distribution but also the regional mean precipitation. In the Olympic Mountains and along the Coastal Range, increased precipitation at higher resolution reflects mainly a shift from light to heavy precipitation events. In the Cascades and Sierra Nevada, increased precipitation is mainly associated with more frequent heavy precipitation at higher resolution. Changes in precipitation from 40- to 13-km resolution depend on synoptic conditions such as wind direction and moisture transport. The use of higher spatial resolution improves snowpack more than precipitation. However, results presented in this paper suggest that accuracy in the snow simulation is also limited by factors such as deficiencies in the land surface model or biases in other model variables. JF - Journal of Hydrometeorology AU - Leung, L R AU - Qian, Y AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, rubyleung@pnl.gov Y1 - 2003/12// PY - 2003 DA - Dec 2003 SP - 1025 EP - 1043 PB - American Meteorological Society VL - 4 IS - 6 SN - 1525-755X, 1525-755X KW - Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Snowpack KW - Moisture KW - Snow cover models KW - USA, West KW - USA, Sierra Nevada Mts. KW - USA, Nevada KW - Spatial Distribution KW - Precipitation variations KW - Mountains KW - Model sensitivity KW - Telemetry KW - Nesting KW - USA, California KW - Slopes KW - Precipitation models KW - Wind KW - Snow KW - USA, Pacific Northwest KW - Simulation KW - Precipitation KW - Snow cover KW - USA, Washington, Olympic Mts. KW - Model Studies KW - Hydrometeorology KW - Numerical simulations KW - USA, Cascade Mts. KW - SW 0820:Snow, ice and frost KW - M2 556.12:Precipitation (556.12) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18054923?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=The+Sensitivity+of+Precipitation+and+Snowpack+Simulations+to+Model+Resolution+via+Nesting+in+Regions+of+Complex+Terrain&rft.au=Leung%2C+L+R%3BQian%2C+Y&rft.aulast=Leung&rft.aufirst=L&rft.date=2003-12-01&rft.volume=4&rft.issue=6&rft.spage=1025&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2F1525-7541%282003%29004%281025%3ATSOPAS%292.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=1525-755X&volume=4&page=1025 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Precipitation; Simulation; Snowpack; Model Studies; Spatial Distribution; Nesting; Mountains; Telemetry; Snow; Slopes; Wind; Moisture; Hydrometeorology; USA, Nevada; USA, Pacific Northwest; USA, California; USA, Washington, Olympic Mts.; USA, West; USA, Cascade Mts.; USA, Sierra Nevada Mts.; Precipitation variations; Snow cover; Model sensitivity; Numerical simulations; Precipitation models; Snow cover models DO - http://dx.doi.org/10.1175/1525-7541(2003)004(1025:TSOPAS)2.0.CO;2 ER - TY - JOUR T1 - Intercomparison of Global Reanalyses and Regional Simulations of Cold Season Water Budgets in the Western United States AN - 18045010; 5808956 AB - Estimating water budgets of river basins in the western United States is a challenge because of the effects of complex terrain and lack of comprehensive observational datasets. This study aims at comparing different estimates of cold season water budgets of the Columbia River (CRB) and Sacramento-San Joaquin River (SSJ) basins. An intercomparison was performed based on the NCEP-NCAR reanalysis I (NRA1), NCEP-Department of Energy (DOE) reanalysis II (NRA2), ECMWF reanalyses (ERA), regional climate simulations produced by the fifth-generation Pennsylvania State University-NCAR Mesoscale Model (MM5) and NCEP Regional Spectral Model (RSM) driven by the reanalyses, and two precipitation datasets gridded at 2.5 degree and [frac18] degree for 7 yr between 1986 and 1993. The purpose of the intercomparison was to understand the effects of spatial resolution, model configuration and associated parameterizations, and large-scale conditions on basin-scale water budgets. Overall, the regional simulations were superior to the global reanalyses in terms of the spatial distribution of mean precipitation and precipitation anomalies. However, cold season precipitation was generally amplified in the regional models. Basin mean precipitation was typically higher than observed in the regional models and less than observed in the reanalyses. The amplification was the largest in the RSM simulation driven by NRA2, which had the biggest difference between the reanalyzed and regional simulation of basin mean precipitation. ERA and the MM5 simulations driven by ERA provided the best basin mean precipitation estimates when compared to the [frac18] degree observational dataset. Lambda arge differences remain in estimating the water budgets of western river basins, such as CRB and SSJ. In terms of atmospheric moisture flux, there was a 15%-20% difference between the global reanalyses. In terms of basin mean precipitation, differences among the reanalyses, regional simulations, and observations were as large as 100% of the overall mean. There were large differences in spatial distribution of precipitation between the RSM and MM5 simulations because of terrain representations and other factors. Runoff and snowpack showed the most sensitivity to model differences in spatial resolution, physics parameterizations, and model representations. Better simulations of basin mean precipitation did not necessarily imply superior simulations of runoff or snowpack. JF - Journal of Hydrometeorology AU - Leung, L R AU - Qian, Y AU - Han, J AU - Roads, JO AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, rubyleung@pnl.gov Y1 - 2003/12// PY - 2003 DA - Dec 2003 SP - 1067 EP - 1087 PB - American Meteorological Society VL - 4 IS - 6 SN - 1525-755X, 1525-755X KW - Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Snowpack KW - Moisture KW - River Basins KW - Water budget KW - USA, West KW - USA, Columbia R. KW - Hydrologic Budget KW - Spatial Distribution KW - NCEP/NCAR reanalysis KW - Numerical models KW - Precipitation anomalies KW - Mesoscale model MM5 KW - Seasonal variations KW - Rivers KW - Estimating KW - Simulation KW - Precipitation KW - INE, USA, Columbia R. KW - Model Studies KW - Hydrometeorology KW - USA, California, San Joaquin R. basin KW - Fluctuations KW - Runoff KW - M2 556.53:Rivers, Streams, Canals (556.53) KW - SW 0835:Streamflow and runoff KW - M2 556.1:Hydrologic Cycle (556.1) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18045010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=Intercomparison+of+Global+Reanalyses+and+Regional+Simulations+of+Cold+Season+Water+Budgets+in+the+Western+United+States&rft.au=Leung%2C+L+R%3BQian%2C+Y%3BHan%2C+J%3BRoads%2C+JO&rft.aulast=Leung&rft.aufirst=L&rft.date=2003-12-01&rft.volume=4&rft.issue=6&rft.spage=1067&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2F1525-7541%282003%29004%281067%3AIOGRAR%292.0.CO%3B2 L2 - http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=1525-755X&volume=4&page=1067 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Simulation; Precipitation; Model Studies; River Basins; Spatial Distribution; Estimating; Snowpack; Rivers; Runoff; Hydrologic Budget; Fluctuations; Moisture; Hydrometeorology; USA, Columbia R.; USA, West; INE, USA, Columbia R.; USA, California, San Joaquin R. basin; Water budget; NCEP/NCAR reanalysis; Seasonal variations; Numerical models; Mesoscale model MM5; Precipitation anomalies DO - http://dx.doi.org/10.1175/1525-7541(2003)004(1067:IOGRAR)2.0.CO;2 ER - TY - JOUR T1 - Biogeochemical processes and microbial characteristics across groundwater-surface water boundaries of the Hanford Reach of the Columbia River. AN - 71461693; 14655698 AB - Biogeochemical processes within riverbed hyporheic zones (HZ) can potentially impact the fate and transport of contaminants. We evaluated a modified freeze core technique for the collection of intact cobble-bed samples from the Columbia River HZ along a stretch of the Hanford Reach in Washington State and investigated microbiological and geochemical parameters of corresponding frozen and unfrozen samples. During three sampling periods (March, May, and November 2000), relatively high numbers of viable aerobic heterotrophic bacteria were recovered from both unfrozen (10(6)-10(7) cfu/g) and frozen samples (10(5)-10(6) cfu/g). Relatively large populations of sulfate-, nitrate-, and iron-reducing bacteria were present, and significant concentrations of acid-volatile sulfide were measured in some samples, indicating that anoxic regions exist within this zone. Cr(VI), a priority groundwater pollutant on adjacent U.S. Department of Energy lands, was probably removed from solution in HZ samples by a combination of microbial activity and chemical reduction, presumably via products of anaerobic microbial metabolism. These results suggest that biogeochemical processes in the Columbia River HZ may contribute to the natural attenuation of Cr(VI). Although freezing modestly diminished recovery of viable bacteria, freeze core techniques proved reliable for the collection of intact hyporheic sediments. JF - Environmental science & technology AU - Moser, Duane P AU - Fredrickson, James K AU - Geist, David R AU - Arntzen, Evan V AU - Peacock, Aaron D AU - Li, Shu-Mei W AU - Spadoni, Tina AU - McKinley, James P AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA. duane.moser@pnl.gov Y1 - 2003/11/15/ PY - 2003 DA - 2003 Nov 15 SP - 5127 EP - 5134 VL - 37 IS - 22 SN - 0013-936X, 0013-936X KW - Water Pollutants, Chemical KW - 0 KW - Index Medicus KW - Washington KW - Water Movements KW - Porosity KW - Specimen Handling KW - Freezing KW - Biodegradation, Environmental KW - Soil Microbiology KW - Geologic Sediments -- chemistry KW - Fresh Water -- chemistry KW - Water Pollutants, Chemical -- analysis KW - Fresh Water -- microbiology KW - Geologic Sediments -- microbiology KW - Water Microbiology KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71461693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Biogeochemical+processes+and+microbial+characteristics+across+groundwater-surface+water+boundaries+of+the+Hanford+Reach+of+the+Columbia+River.&rft.au=Moser%2C+Duane+P%3BFredrickson%2C+James+K%3BGeist%2C+David+R%3BArntzen%2C+Evan+V%3BPeacock%2C+Aaron+D%3BLi%2C+Shu-Mei+W%3BSpadoni%2C+Tina%3BMcKinley%2C+James+P&rft.aulast=Moser&rft.aufirst=Duane&rft.date=2003-11-15&rft.volume=37&rft.issue=22&rft.spage=5127&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2004-03-22 N1 - Date created - 2003-12-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Europium Uptake and Partitioning in Oat (Avena sativa) Roots as Studied by Laser-induced Fluorescence Spectroscopy and Confocal Microscopy Profiling Technique AN - 16179207; 5955181 AB - The uptake of Eu super(3+) by elongating oat roots was studied by fluorescence spectroscopy, fluorescence lifetime measurement, and a laser excitation time-resolved confocal fluorescence profiling technique. The results of this work indicated that initial uptake of Eu super(3+) was highest within the undifferentiated cells of the root tip just behind the root cap, a region of maximal cell growth and differentiation and with incomplete formation of the Casparian strip around the central vascular cylinder. Distribution of assimilated Eu super(3+) within the root's differentiation and elongation zone was nonuniform. Higher concentrations of Eu super(3+) were observed within the vascular cylinder, specifically in the phloem and developing xylem parenchyma. Elevated levels of the metal were also observed in the root hairs of the mature root zone. Fluorescence spectroscopic characteristics of the assimilated Eu super(3+) suggested that the Eu super(3+) exists as inner-sphere mononuclear complexes inside the root. This work also demonstrated the effectiveness of a time-resolved Eu super(3+) fluorescence spectroscopy and confocal fluorescence profiling techniques for the in vivo, real-time study of metal [Eu super(3+)] accumulation by a functioning intact plant root. This approach can prove valuable for basic and applied studies in plant nutrition and environmental uptake of actinide radionuclides. JF - Environmental Science & Technology AU - Fellows, R J AU - Wang, Zheming AU - Ainsworth, C C AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K8-96, Richland, WA 99352, USA, Zheming.Wang@pnl.gov Y1 - 2003/11/15/ PY - 2003 DA - 2003 Nov 15 SP - 5247 EP - 5253 VL - 37 IS - 22 SN - 0013-936X, 0013-936X KW - Pollution Abstracts KW - Fluorescence KW - Bioaccumulation KW - Avena sativa KW - Europium KW - Microscopy KW - Plants KW - Lasers KW - Radioactivity KW - Spectroscopy KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16179207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Europium+Uptake+and+Partitioning+in+Oat+%28Avena+sativa%29+Roots+as+Studied+by+Laser-induced+Fluorescence+Spectroscopy+and+Confocal+Microscopy+Profiling+Technique&rft.au=Fellows%2C+R+J%3BWang%2C+Zheming%3BAinsworth%2C+C+C&rft.aulast=Fellows&rft.aufirst=R&rft.date=2003-11-15&rft.volume=37&rft.issue=22&rft.spage=5247&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Bioaccumulation; Fluorescence; Microscopy; Europium; Plants; Lasers; Radioactivity; Spectroscopy; Avena sativa ER - TY - JOUR T1 - Towards an integration of physical and microbiological properties AN - 51827111; 2004-041045 AB - While novel microbial interactions and new sources of subsurface energy continue to be discovered, numerous geophysical and geochemical properties that determine microbial characteristics are, in principal, understood. However, applying this knowledge to subsurface systems is complicated by issues of defining the most limiting parameter or process, reconciling scale and frequency of measurement to the site and regional context, and understanding the richness of physiological states and interactions that occur in microbial populations. This presentation will provide an overview of the properties that are known (or thought) to be primary determinants of microbial characteristics in the subsurface, and introduce physiological and ecological concepts that offer the potential to improve the mapping of microbial activities to hydrogeochemical categories. JF - Abstracts with Programs - Geological Society of America AU - Brockman, Fred J AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 379 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - physical properties KW - physiology KW - physicochemical properties KW - ecology KW - hydrochemistry KW - geochemistry KW - concepts KW - microorganisms KW - ground water KW - 21:Hydrogeology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51827111?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Towards+an+integration+of+physical+and+microbiological+properties&rft.au=Brockman%2C+Fred+J%3BAnonymous&rft.aulast=Brockman&rft.aufirst=Fred&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=379&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - concepts; ecology; geochemistry; ground water; hydrochemistry; microorganisms; physical properties; physicochemical properties; physiology ER - TY - JOUR T1 - Groundwater contamination at U. S. Department of Energy's Hanford Site AN - 51812115; 2004-065428 AB - Past disposal of liquid waste to the ground at the U.S. Department of Energy's Hanford Site has created contaminant plumes in the unconfined aquifer. These plumes have spread over the years, some discharging to the Columbia River. Each year, the Department samples approximately 650 wells, some of them quarterly or monthly, to track these plumes, meet multiple regulatory requirements, and assess the effectiveness of groundwater and vadose zone remediation. Sampling and analysis are coordinated to eliminate redundancy when wells are sampled for more than one objective, and data are stored in a central database. The most widespread contaminant is tritium from sources in the central part of the site. The portion of the tritium plume originating in east-central Hanford flows through highly permeable sediments and has traveled more than 20 km. Plumes originating in west-central Hanford, where the aquifer is less permeable, have moved only approximately 3 km. Because there is no practical treatment method for tritium, the plumes will probably be left to attenuate naturally. The tritium plumes have shrunk since 1990. Carbon tetrachloride beneath west-central Hanford forms the largest organic contaminant plume. Remediation in the vadose zone and unconfined aquifer limit the spreading of the plume's center. There is limited evidence of greater lateral spread at depth than near the water table in some locations. Hexavalent chromium is a contaminant of concern near the Columbia River in the former reactor areas. It moves readily through coarse-grained sediment and discharges to the river at concentrations above the drinking water standard. Though the sources are being remediated, chromium levels remain high in groundwater, and four sites are being treated to reduce the amount of chromium reaching the river. Strontium-90 plumes tend to be smaller because strontium sorbs to sediment in the vadose zone and aquifer. However, concentrations exceed the drinking water standard in riverbank springs near one reactor area. Strontium-90 does not lend itself to cleanup via pump-and-treat, so alternative remedial methods are being explored. Uranium, present in the southeastern part of the site near the river, also interacts with sediment grains, slowing its movement in groundwater. JF - Abstracts with Programs - Geological Society of America AU - Hartman, Mary J AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 531 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Sr-90 KW - U. S. Department of Energy KW - contaminant plumes KW - isotopes KW - government agencies KW - data processing KW - tritium KW - remediation KW - radioactive waste KW - ground water KW - radioactive isotopes KW - transport KW - data bases KW - chromium KW - alkaline earth metals KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - aquifers KW - liquid waste KW - metals KW - hydrogen KW - waste disposal KW - strontium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51812115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Groundwater+contamination+at+U.+S.+Department+of+Energy%27s+Hanford+Site&rft.au=Hartman%2C+Mary+J%3BAnonymous&rft.aulast=Hartman&rft.aufirst=Mary&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aquifers; chromium; contaminant plumes; data bases; data processing; government agencies; ground water; Hanford Site; hydrogen; isotopes; liquid waste; metals; pollutants; pollution; radioactive isotopes; radioactive waste; remediation; Sr-90; strontium; transport; tritium; U. S. Department of Energy; United States; Washington; waste disposal ER - TY - JOUR T1 - Geochemistry in Hanford's vadose zone; recent scientific findings and key uncertainties AN - 51812078; 2004-065430 AB - The vadose zone at Hanford is an unsaturated region between 10 and 60 m in depth that lies between surface soil and groundwater. The vadose zone sediments are of glacio-fluvial origin, and physical properties can exhibit extreme vertical heterogeneity at the 0.25 m scale and above. The geochemical regime is mildly calcareous. The sediments are relatively unweathered and contain minor detrital phyllosilicates and few secondary metal oxides. The Hanford vadose zone has received large inventories of inorganic (Na, NO3, Cr), radioactive (137Cs, 90Sr, 60Co, 99Tc, U, Pu) and organic (e.g., CCl4) contaminants as a result of past practices disposal (e.g., cribs, retention basins, and disposal trenches) and the leakage of single shell (SS)-high level waste (HLW) tanks. Most of these contaminants are sorbed to vadose sediments by different mechanisms, and some are migrating to and entering groundwater. Here we focus on the migration behavior of HLW, dealing with several case studies from Hanford's tank farms (S-SX; B-BX-BY; T-TX-TY) that are currently under regulatory mandated characterization. Contaminant distributions will be shown beneath SS tanks that have leaked waste solutions of markedly different composition and overall sediment reactivity (e.g., REDOX boiling waste, Sr recovery waste, and high U metal waste). The development of conceptual models for the geochemical interaction/retardation of select contaminants [e.g., 137Cs, 90Sr, U, and Cr(VI)] within these plumes will be highlighted using information from laboratory sorption/desorption studies and results of mineralogic residence/chemical speciation measurements by different methods that include X-ray microscopy and spectroscopy. Important adsorption and precipitation/dissolution processes will be identified, and insights will be provided on fruitful and needed areas of fundamental research to resolve critical issues of contaminant migration. JF - Abstracts with Programs - Geological Society of America AU - Zachara, John M AU - McKinley, James P AU - Liu, Chongxuan AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 531 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Washington KW - isotopes KW - pollutants KW - unsaturated zone KW - pollution KW - Hanford Site KW - current research KW - radioactive waste KW - radioactive isotopes KW - transport KW - sediments KW - theoretical models KW - waste disposal KW - heterogeneity KW - geochemistry KW - uncertainty KW - Eh KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51812078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Geochemistry+in+Hanford%27s+vadose+zone%3B+recent+scientific+findings+and+key+uncertainties&rft.au=Zachara%2C+John+M%3BMcKinley%2C+James+P%3BLiu%2C+Chongxuan%3BAnonymous&rft.aulast=Zachara&rft.aufirst=John&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - current research; Eh; geochemistry; Hanford Site; heterogeneity; isotopes; pollutants; pollution; radioactive isotopes; radioactive waste; sediments; theoretical models; transport; uncertainty; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - Evaluating the potential for offsite migration of contaminants through the upper basalt aquifer system in the southern part of the Hanford Site, Washington AN - 51811670; 2004-065429 AB - Most groundwater contamination beneath the Hanford Site is within saturated sediments that overlie the basalt bedrock. However, lower concentrations of contaminants are also present within the upper basalt-confined aquifer, which is composed of sedimentary interbeds and interflow zones within the Saddle Mountains Basalt Formation. Because groundwater in this aquifer flows to the southeast, it has been identified as a potential pathway for contaminants to migrate across the southern boundary of the site and into areas where the aquifer is used as a source of water supply. The situation is complicated by application of imported irrigation water just south of the site boundary and pumping from the upper basalt-confined aquifer. Hydrogeologic and hydrochemical data, including new samples from offsite wells, were examined to evaluate the potential for offsite migration of contaminants. Geological information was used to create cross sections showing the configuration of the upper basalt-confined aquifer. And hydraulic heads were measured and mapped to indicate flow direction. Based on the available data, it was determined that contaminants have not moved offsite through the upper basalt-confined aquifer. However, the potential for future offsite migration is affected by current and future pumping of the upper basalt-confined aquifer and recharge from imported irrigation water. JF - Abstracts with Programs - Geological Society of America AU - Thorne, Paul D AU - Newcomer, Darrell R AU - Liikala, Terry L AU - Thornton, Edward C AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 531 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Washington KW - volcanic rocks KW - pollutants KW - igneous rocks KW - confined aquifers KW - pollution KW - Hanford Site KW - radioactive waste KW - ground water KW - aquifers KW - saturated zone KW - transport KW - basalts KW - sediments KW - hydraulic conductivity KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51811670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Evaluating+the+potential+for+offsite+migration+of+contaminants+through+the+upper+basalt+aquifer+system+in+the+southern+part+of+the+Hanford+Site%2C+Washington&rft.au=Thorne%2C+Paul+D%3BNewcomer%2C+Darrell+R%3BLiikala%2C+Terry+L%3BThornton%2C+Edward+C%3BAnonymous&rft.aulast=Thorne&rft.aufirst=Paul&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; basalts; confined aquifers; ground water; Hanford Site; hydraulic conductivity; igneous rocks; pollutants; pollution; radioactive waste; saturated zone; sediments; transport; United States; volcanic rocks; Washington; waste disposal ER - TY - JOUR T1 - Hydrogeology of the Hanford Site vadose zone AN - 51811573; 2004-065422 AB - The vadose zone at the Department of Energy's Hanford Site in the Pasco Basin, south-central Washington, consists of mostly Pleistocene-age cataclysmic flood deposits, informally referred to as the Hanford formation. Locally, pre-flood deposits of the Cold Creek unit (formerly the Plio-Pleistocene unit) and the Ringold Formation may lie between the Hanford formation and the water table (DOE 2002). A thin veneer of post-Hanford Formation eolian deposits occurs at the surface. Based on observations of outcrops and a limited number of drill cores, the Hanford Formation can be subdivided into 11 textural-structural lithofacies, which group into three facies associations (gravel-dominated [GD], sand-dominated [SD], and interbedded sand- and silt-dominated [ISSD]). GD flood deposits lie along flood channels through the central portion of the Pasco Basin, while ISSD flood deposits occur around the basin margins. SD is transitional between GD and ISSD and is the principal unit beneath the 200 Area Waste-Management Units, while GD predominates beneath Hanford's 100 Areas. Flood deposits are inherently heterogeneous and anisotropic due to the highly complex interplay between channels and bars during multiple flood episodes. Moisture in the vadose zone is typically concentrated along high-contrast bed interfaces as well as along finer grained layers within the Hanford formation and Cold Creek unit. Precipitation and waste-water discharges may migrate downward along discordant features, such as clastic dikes, or spread laterally, sometimes in a stair-step fashion, along overlapping series of anisotropic, discontinuous strata. High-moisture retaining facies occur in all strata, but are most frequent in ISSD and least frequent in GD flood deposits. Studies are ongoing to evaluate the physical and chemical characteristics of vadose-zone strata and assign hydrologic properties to each sediment type for modeling purposes. DOE, 2002, Standardized Stratigraphic Nomenclature for the Post-Ringold-Formation sediments Within the central Pasco Basin, DOE/RL-2002-39, Rev. 0, U.S. Department of Energy, Richland, Washington. JF - Abstracts with Programs - Geological Society of America AU - Bjornstad, Bruce N AU - Last, George V AU - Horton, Duane G AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 530 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Hanford Formation KW - Washington KW - Quaternary KW - geologic hazards KW - clastic sediments KW - moisture KW - physicochemical properties KW - unsaturated zone KW - pollution KW - Hanford Site KW - radioactive waste KW - Cenozoic KW - lithofacies KW - sediments KW - floods KW - Pleistocene KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51811573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Hydrogeology+of+the+Hanford+Site+vadose+zone&rft.au=Bjornstad%2C+Bruce+N%3BLast%2C+George+V%3BHorton%2C+Duane+G%3BAnonymous&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=530&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; clastic sediments; floods; geologic hazards; Hanford Formation; Hanford Site; lithofacies; moisture; physicochemical properties; Pleistocene; pollution; Quaternary; radioactive waste; sediments; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - Environmental geology of the Hanford Site AN - 51811378; 2004-065420 AB - As a consequence of production and waste storage activities associated with Pu production, the Hanford Site (1,450 km (super 2) ) has radionuclide and chemical contamination in saturated and unsaturated sediments. The geology of the site strongly influences groundwater flow and contaminant transport. Broadly, the contaminants in the central part of the site move through a 70m thick vadose zone to the groundwater, which then has the potential to transport them to discharge zones along the Columbia River. Each transport process--1) unsaturated transport, 2) saturated transport, and 3) discharge to the Columbia River--involves heterogeneous and anisotropic geologic units dominated by variably coarse to fine continental clastic sediments. Specific units include the Neogene Ringold Formation, the late Pliocene to Pleistocene Cold Creek Unit, the Pleistocene Hanford formation, and Holocene alluvial sediments, all of which are underlain by Columbia River Basalt. The Ringold Formation forms much of the unconfined aquifer beneath the site and consists of sediments deposited by the proto-Columbia River system over about a 5 Ma aggradational period. Facies include fluvial channel and overbank deposits, lacustrine deposits, alluvial fans, and paleosols. The Cold Creek Unit disconformably overlies the Ringold Formation and consists of eolian, alluvial, and colluvial deposits with paleosols. The Hanford Formation occupies much of the vadose zone on the site and consists of boulder to silt size sediments deposited by a series of cataclysmic Ice-Age floods, mostly from glacial Lake Missoula. Mapping of the sedimentary facies in the subsurface using excavations, boreholes and geophysical data, has identified heterogeneity and anisotropy that control unsaturated and saturated flow in the supra-basalt sediments (e.g., polygonal networks of clastic dikes). Understanding the flow and transport properties of sediment facies at Hanford is crucial to development of reactive transport models at a range of scales. Only when we can relate pore- and mm-scale transport phenomena (including a full range of geochemical and microbial reactions) to detailed facies models extensible to the decimeter and kilometer scale will we be able to fully exploit Hanford geology for improving predictions of future risk posed by contaminants at the site. JF - Abstracts with Programs - Geological Society of America AU - Long, Philip AU - Last, George V AU - Bjornstad, Bruce N AU - Reidel, Stephen AU - Fecht, Karl AU - Majer, Ernest AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 530 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Hanford Formation KW - Washington KW - Quaternary KW - clastic sediments KW - Columbia River KW - unsaturated zone KW - pollution KW - Hanford Site KW - Ringold Formation KW - environmental analysis KW - radioactive waste KW - Cenozoic KW - lithofacies KW - Cold Creek Unit KW - Tertiary KW - transport KW - Neogene KW - sediments KW - Pliocene KW - Pleistocene KW - waste disposal KW - heterogeneity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51811378?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Environmental+geology+of+the+Hanford+Site&rft.au=Long%2C+Philip%3BLast%2C+George+V%3BBjornstad%2C+Bruce+N%3BReidel%2C+Stephen%3BFecht%2C+Karl%3BMajer%2C+Ernest%3BAnonymous&rft.aulast=Long&rft.aufirst=Philip&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=530&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; clastic sediments; Cold Creek Unit; Columbia River; environmental analysis; Hanford Formation; Hanford Site; heterogeneity; lithofacies; Neogene; Pleistocene; Pliocene; pollution; Quaternary; radioactive waste; Ringold Formation; sediments; Tertiary; transport; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - High-resolution modeling studies of vadose zone reactive transport AN - 51811177; 2004-065426 AB - An exposed section of the Hanford vadose zone was characterized for hydrogeological and geochemical properties at the millimeter scale using high-resolution visible and infrared imaging, in situ measurements (air and water permeability), cation exchange capacity, grain size sampling, and statistical correlation. A key feature of sediments from this area of the Hanford Site is the clear inverse functional dependence of cation exchange capacity on grain size. This correlation was used in conjunction with the highly resolved spatial distribution of sediment textures for the exposed face at the Army Loop Road Field Site, to provide an equivalently detailed distribution of cation exchange capacity. The focus of study was the reactive transport of strontium-90 in physically and geochemically heterogeneous unsaturated sediments. In this system, the mobility of strontium-90 is controlled by multicomponent ion exchange and mineral precipitation and dissolution. Two-dimensional reactive transport simulations for an experimental release of strontium and magnesium at the field site were performed at 1-mm spatial resolution to identify the impact of multiscale property variability on the behavior of strontium in the vadose zone under a range of recharge conditions. Parallel processing subsurface simulators were used to accommodate the large number of grid cells and components as well as the comprehensive coupling of flow, transport, and reaction processes. The simulations were designed to test the sensitivity of strontium mobility to small-scale recharge-dependent transport pathways and the preferential distribution of exchange sites with respect to those pathways. Of particular interest were exclusion effects that lead to the bypassing of reactive surfaces at different flow regimes. (The relationships used to transform the digital images into high-resolution distributions for predictive flow and transport models are discussed in the companion paper by Ward et al., "Integration of Multi-scale Physical and Chemical Heterogeneities Using High-Resolution Digital Images.") JF - Abstracts with Programs - Geological Society of America AU - Yabusaki, Steve B AU - Ward, Andy L AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 531 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Sr-90 KW - high-resolution methods KW - alkaline earth metals KW - Washington KW - cation exchange capacity KW - isotopes KW - grain size KW - statistical analysis KW - geophysical methods KW - data processing KW - unsaturated zone KW - pollution KW - Hanford Site KW - radioactive waste KW - radioactive isotopes KW - infrared methods KW - transport KW - metals KW - sediments KW - waste disposal KW - heterogeneity KW - strontium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51811177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=High-resolution+modeling+studies+of+vadose+zone+reactive+transport&rft.au=Yabusaki%2C+Steve+B%3BWard%2C+Andy+L%3BAnonymous&rft.aulast=Yabusaki&rft.aufirst=Steve&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; cation exchange capacity; data processing; geophysical methods; grain size; Hanford Site; heterogeneity; high-resolution methods; infrared methods; isotopes; metals; pollution; radioactive isotopes; radioactive waste; sediments; Sr-90; statistical analysis; strontium; transport; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - Integration of multi-scale physical and chemical heterogeneities using high-resolution digital images AN - 51811035; 2004-065425 AB - High-resolution data sets are needed to improve our understanding of the interaction between subsurface advective, dispersive, and exchange processes and the impact of multi-scale heterogeneity. However, development of these data sets has been hampered by disparities in the scale at which these processes occur and typical scale of characterization. We demonstrate an outcrop analog concept in which high-resolution digital images are used to integrate physical and chemical heterogeneities across multiple spatial scales. High-resolution visible and infrared images of a dike dig face on the Hanford Site were compiled into a mosaic spanning heterogeneities from the millimeter scale to tens of meters. Measurements with in situ characterization tools (water and air permeameters) were used to develop a coarse-scale hydrofacies map. This map was supplemented with sedimentological (grain size distribution) hydraulic (water retention, permeability) and hydrogeochemical (distribution coefficient, cation exchange capacity) properties derived from sediment samples. These properties were regressed on grain size and sorting parameters to obtain predictive relationships for the measurement scale. Hydrogeological and hydrogeochemical properties showed strong correlations with texture, as represented by a mean grain size and sorting index. The resulting relationships were used to transform the digital images into high-resolution lithofacies, hydrofacies and chemofacies distributions for input into predictive flow and reactive transport models. This approach is applicable to the generation of multi-dimensional, multi-parameter data sets for input into high-resolution numerical models. The impact of multi-scale heterogeneities on subsurface flow in the dike outcrop is demonstrated in a series of simulations with the STOMP simulator. A companion paper by Yabusaki and Ward explores the impact of heterogeneous sorption parameters derived by this method on the transport (super 90) Sr. This work was funded through The Hanford Ground Water Protection Project by the U.S. Department of Energy. The Pacific Northwest National Laboratory is operated for the U.S. Department of Energy by Battelle under Contract DE-AC06-76RL01830. JF - Abstracts with Programs - Geological Society of America AU - Ward, Andy L AU - Gee, Glendon W AU - Murray, Chris J AU - Zhang, Z Fred AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 531 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - high-resolution methods KW - Washington KW - STOMP KW - physicochemical properties KW - data processing KW - pollution KW - Hanford Site KW - hydrochemistry KW - radioactive waste KW - ground water KW - digital simulation KW - sediments KW - waste disposal KW - heterogeneity KW - geochemistry KW - image analysis KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51811035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Integration+of+multi-scale+physical+and+chemical+heterogeneities+using+high-resolution+digital+images&rft.au=Ward%2C+Andy+L%3BGee%2C+Glendon+W%3BMurray%2C+Chris+J%3BZhang%2C+Z+Fred%3BAnonymous&rft.aulast=Ward&rft.aufirst=Andy&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - data processing; digital simulation; geochemistry; ground water; Hanford Site; heterogeneity; high-resolution methods; hydrochemistry; image analysis; physicochemical properties; pollution; radioactive waste; sediments; STOMP; United States; Washington; waste disposal ER - TY - JOUR T1 - A comparison of the use of radar images and neutron probe data to determine spatial variability in water content at Hanford AN - 51811004; 2004-065423 AB - Surface-based ground penetrating radar (GPR) data were collected at the Sisson and Lu Injection Test Site in the 200 East Area at Hanford to assess the use of radar images as a means of quantifying the subsurface distribution in water content (theta (sub w) ). Available at the test site were two sets of water content data derived from neutron probe measurements that had been made to a depth of approximately 18 m in 32 wells. The first question we asked: Do the locations and amplitudes of the reflections in the radar data correspond to changes in theta (sub w) ? In order to address this issue, the probe-derived water content data were used to generate synthetic radar data, i.e. the radar data that would be obtained if theta (sub w) alone were controlling the radar response. Many of the features in the synthetic radar data were found to be present in the acquired 30 m radar section indicating that the amplitudes and locations of the radar reflections do correspond to changes in subsurface theta (sub w) . This observed correspondence led to the second part of the study. We tested the idea that quantifying the spatial distribution of the radar reflections, in terms of the horizontal correlation structure, could be used to quantify the correlation structure in subsurface theta (sub w) . Geostatistical analysis was conducted of the two sets of theta (sub w) - values and of the amplitudes of the reflections in the radar section. The geostatistical analysis of the radar reflection image yielded a correlation structure similar to that obtained from neutron probe-derived theta (sub w) values, with a correlation length on the order of 10 to 14 m seen in both data sets. The limited horizontal extent of both the neutron probe data ( approximately 16 m) and radar data (30 m), relative to the correlation length, suggests that the true correlation length of the subsurface water content may be underestimated in modeling the semivariograms of both data sets. The radar data, with a sample spacing of 20 cm (compared to approximately 2 m for the probe data) provided additional evidence of structure at the sub-meter scale. We conclude that surface-based radar should be further explored for use at Hanford and at other sites where measurements obtained in wells are insufficient to provide the required detailed information about spatial variability in theta (sub w) . JF - Abstracts with Programs - Geological Society of America AU - Knight, Rosemary AU - Irving, James AU - Tercier, Paulette AU - Freeman, Gene AU - Murray, Chris J AU - Rockhold, Mark AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 530 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - water KW - United States KW - Washington KW - ground-penetrating radar KW - statistical analysis KW - unsaturated zone KW - radar methods KW - pollution KW - Hanford Site KW - geostatistics KW - radioactive waste KW - spatial variations KW - neutron probe data KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51811004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+comparison+of+the+use+of+radar+images+and+neutron+probe+data+to+determine+spatial+variability+in+water+content+at+Hanford&rft.au=Knight%2C+Rosemary%3BIrving%2C+James%3BTercier%2C+Paulette%3BFreeman%2C+Gene%3BMurray%2C+Chris+J%3BRockhold%2C+Mark%3BAnonymous&rft.aulast=Knight&rft.aufirst=Rosemary&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=530&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - geostatistics; ground-penetrating radar; Hanford Site; neutron probe data; pollution; radar methods; radioactive waste; spatial variations; statistical analysis; United States; unsaturated zone; Washington; waste disposal; water ER - TY - JOUR T1 - Hydrogeology of the unconfined aquifer at the U. S. Department of Energy Hanford Site, Washington State AN - 51810495; 2004-065427 AB - The Hanford Site, a facility in the U.S. Department of Energy (DOE) nuclear weapons complex located in southeastern Washington State, was acquired by the federal government in 1943. Until the 1980s, the site was dedicated primarily to the production of plutonium for national defense and waste management. Groundwater in the unconfined aquifer generally flows from recharge areas west of the Hanford Site and discharges to the Columbia River. The natural pattern of groundwater flow was altered by discharge of large volumes of wastewater to the ground. During the first 50 years of operations, 400 to 450 billion gallons of water, often contaminated, were released to the soil, primarily via ponds and cribs. This resulted in groundwater mounding up to 24 meters in some portions of the site and created highly transient groundwater conditions. Contaminants were also discharged to the unconfined aquifer by other means including retention trenches, injection wells, and waste disposal in pits, trenches, and landfills. High-level radioactive wastes are stored in 177 tanks at Hanford, some of which have leaked through the vadose zone and impacted groundwater. Approximately 200 square kilometers of groundwater in the unconfined aquifer is contaminated above drinking water standards, including plumes of tritium, iodine-129, nitrate, carbon tetrachloride, trichloroethene, chromium, strontium-90, technetium-99, and uranium. The distribution of these contaminants is controlled by past waste management operations, groundwater flow, and complex interactions with the site geology. Most wastewater discharge was terminated in the mid 1990s, causing a decline in the mounded water table and furthering the complexity of the groundwater flow system and contaminant migration. DOE has monitored groundwater quality across the Hanford Site since operations began, and at six of the groundwater plumes, interim remedial actions are underway. These actions include: pumping and treating plumes; reactive barriers; and monitoring. Research and development efforts and modeling are underway to develop final cleanup decisions for these groundwater contaminant plumes. JF - Abstracts with Programs - Geological Society of America AU - Freshley, Mark D AU - Luttrell, Stuart P AU - Fruchter, Jonathan S AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 531 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - U. S. Department of Energy KW - Washington KW - contaminant plumes KW - pollutants KW - government agencies KW - pollution KW - Hanford Site KW - radioactive waste KW - ground water KW - aquifers KW - decontamination KW - water treatment KW - waste disposal KW - discharge KW - unconfined aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51810495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Hydrogeology+of+the+unconfined+aquifer+at+the+U.+S.+Department+of+Energy+Hanford+Site%2C+Washington+State&rft.au=Freshley%2C+Mark+D%3BLuttrell%2C+Stuart+P%3BFruchter%2C+Jonathan+S%3BAnonymous&rft.aulast=Freshley&rft.aufirst=Mark&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; contaminant plumes; decontamination; discharge; government agencies; ground water; Hanford Site; pollutants; pollution; radioactive waste; U. S. Department of Energy; unconfined aquifers; United States; Washington; waste disposal; water treatment ER - TY - JOUR T1 - Vadose zone hydrogeology of the Hanford Site AN - 51810473; 2004-065421 AB - The U.S. Department of Energy's Hanford Site is an inactive nuclear production complex in southeastern Washington State. The site was built along the Columbia River in 1943 in the semiarid Pasco Basin of the Columbia Plateau. During the operational period, nuclear and chemical wastes were released into the environment. Significant waste quantities currently reside in the vadose zone and will continue to be disposed there in engineered facilities. Vadose zone hydrogeology is the primary control on the ultimate fate of those wastes. The thickness of the vadose zone ranges from less than one meter near the river to more than 100 meters beneath the central production facilities. Most of the sediments are glacio-fluvial sands and gravels of the Hanford Formation with complex and highly variable structure. In some areas, the deeper vadose zone consists of the fluvial-lacustrine sediments of the Ringold Formation. The whole is mantled by weakly developed soils that tend to be slightly finer in texture than the underlying sediments. Water is the primary agent for mobilizing and transporting waste in the vadose zone. Water sources include precipitation, runoff, and artificial recharge (dilute and hypersaline solutions). After site closure, natural recharge will be the primary water source. Part of the site cleanup strategy is to deploy surface barriers above waste disposal sites to minimize water infiltration. Numerous studies have been conducted to understand the vadose zone: measurements of physical and hydraulic properties and their variability, characterization of specific features such as clastic dikes, measurements of recharge rates under natural and engineered conditions, and model predictions of contaminant fate and transport. Challenges, however, remain. How do we represent features that cause water to diverge from strictly vertical gravity-driven flow, complicating the movement of contaminants? How do we adequately represent properties in numerical models when the size and extent of the vadose zone dwarfs the measurement domain of studies conducted to date? How will potential runoff from surface barriers impact the vadose zone, and thus the waste, beneath the barriers? How long will surface barriers perform as designed? These and other issues are being considered and will be addressed before Site closure. JF - Abstracts with Programs - Geological Society of America AU - Fayer, Michael James AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 530 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - hydrology KW - Washington KW - pollutants KW - Columbia River KW - unsaturated zone KW - pollution KW - Hanford Site KW - radioactive waste KW - recharge KW - transport KW - decontamination KW - runoff KW - hydraulic conductivity KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51810473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Vadose+zone+hydrogeology+of+the+Hanford+Site&rft.au=Fayer%2C+Michael+James%3BAnonymous&rft.aulast=Fayer&rft.aufirst=Michael&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=530&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Columbia River; decontamination; Hanford Site; hydraulic conductivity; hydrology; pollutants; pollution; radioactive waste; recharge; runoff; transport; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - Potential hydrogen bonding sites in kyanite, andalusite, and sillimanite AN - 51796979; 2004-073774 AB - It has been shown that water can be incorporated within the structures of nominally anhydrous silicates, including the aluminosilicate polymorphs, kyanite, andalusite, and sillimanite [1]. Although numerous studies have investigated the stabilities of the aluminosilicate polymorphs, little is know about the incorporation of hydrogen within these minerals. This study examines potential hydrogen bonding sites within the aluminosilicate polymorphs based on an analysis of the Laplacian of the electron density distribution, following the method of Ross et al. [2]. The CRYSTAL98 program [3] was used to generate analytical electron density distributions for kyanite, andalusite and sillimanite, and TOPOND [4] was used to locate the (3,-3) critical points. The (3,-3) critical points correspond to regions of nonbonding electron pairs and help pinpoint potential sites of electrophilic attack by hydrogen, for example [5]. Although (3,-3) critical points are found on all oxygen atoms in the aluminosilicate polymorphs, our results indicate that O1 in andalusite and O2 in sillimanite are prime sites for protonation. These oxygens are solely coordinated to three aluminum atoms and have bond valences of 1.88 v.u. and 1.87 v.u., respectively. The location of the (3,-3) critical points indicate that the potential sites are large enough to accommodate hydrogen and also indicate that the O-H bonds in andalusite and sillimanite are highly directional. In andalusite, the O-H vectors lie within (001) and are approximately parallel to [-1 1 0] and [110]. In sillimanite, the O-H vectors also lie within (001) but are oriented closer to [010]. The location of potential sites for hydrogen in kyanite is less clear. However, the positions of the (3,-3) critical points on O2 and O6, which are bonded to four aluminum atoms, have highly optimized geometries for protonation. [1] Bell D.R. and Rossman G.R. (1992) Science, 255, 1391-1397. [2] Ross N.L., Gibbs, G.V., and Rosso, K.M. (2003) Am. Mineral., in press. [3] Saunders V.R., Dovesi R., Roetti C., Causa M., Harrison N. M., Orlando R., and Zicovich-Wilson C. M. (1998) CRYSTAL98 User's Manual. Univ. of Torino. [4] Gatti C. (1997) TOPOND96 User's Manual, CNR-CSRSRC. [5] Bader R.F.W., MacDougall P.J. and Lau C.D.H. (1984) J. Am. Chem. Soc., 106, 1594-1605. JF - Abstracts with Programs - Geological Society of America AU - Burt, J B AU - Ross, N L AU - Gibbs, G V AU - Rosso, K M AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 621 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - silicates KW - andalusite KW - numerical analysis KW - sillimanite KW - kyanite KW - data processing KW - bonding KW - Laplace transformations KW - nesosilicates KW - computer programs KW - polymorphism KW - CRYSTAL98 KW - aluminosilicates KW - hydrogen KW - digital simulation KW - orthosilicates KW - TOPOND KW - crystal chemistry KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51796979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Potential+hydrogen+bonding+sites+in+kyanite%2C+andalusite%2C+and+sillimanite&rft.au=Burt%2C+J+B%3BRoss%2C+N+L%3BGibbs%2C+G+V%3BRosso%2C+K+M%3BAnonymous&rft.aulast=Burt&rft.aufirst=J&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=621&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - Number of references - 5 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aluminosilicates; andalusite; bonding; computer programs; crystal chemistry; CRYSTAL98; data processing; digital simulation; hydrogen; kyanite; Laplace transformations; nesosilicates; numerical analysis; orthosilicates; polymorphism; silicates; sillimanite; TOPOND ER - TY - JOUR T1 - Columbia River basalts; do they leak? A retrospective of BWIP program data AN - 51789066; 2004-081396 AB - A key issue in deep repository performance is the degree of hydraulic communication or leakage of the repository horizon to overlying aquifers or other pervious hydrogeologic units. This was particularly relevant for the Basalt Waste Isolation Project (BWIP), which evaluated the suitability of basalts, a fractured crystalline rock-type, for high-level radioactive waste containment. The question of basalt intercommunication continues to be an issue for state and federal agencies concerned with groundwater-resource management and private companies interested in the viability of basalts for underground natural gas storage or as potential carbon sequestration reservoirs. The Columbia River Basalts constitute a large flood-basalt province in the Pacific Northwest, covering 163,000 km (super 2) . At its deepest location, the basalt has an aggregate, composite thickness of >4,000 meters. Thick interior sections within basalt flows at the Hanford Site in Washington State were identified as part of site characterization investigations in the mid-1980's as possible candidate horizons for a high-level nuclear repository being considered by the United States. The Hanford Site, together with a salt site in Deaf Smith, Texas, was abandoned by U.S. Congressional mandate in 1987 in favor of a tuff site currently being investigated at Yucca Mountain, Nevada. Inferential site characterization data collected as part of the BWIP program (hydrochemical/isotopic data, hydraulic properties, and opportunistic head responses induced by high-stress drilling operations) suggest that within the Hanford Site only low pervasive intercommunication exists, with significant vertical communication occurring along major structural features. Hydrochemical/isotopic data also reflect the distinct separation of aquifers except in areas where major faulting and deformation has occurred. A large-scale hydrologic stress test (pumping test) was planned during the BWIP program to assess intercommunication both laterally and vertically across selected basalt flows. Although the tests were not completed, the data gathered during the site characterization can be used to address questions about basalt intercommunication. JF - Abstracts with Programs - Geological Society of America AU - Spane, Frank AU - Reidel, Stephen P AU - Johnson, Vernon G AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 136 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - hazardous waste KW - flood basalts KW - volcanic rocks KW - igneous rocks KW - underground storage tanks KW - waste disposal sites KW - reservoir rocks KW - radioactive waste KW - ground water KW - Cenozoic KW - fractures KW - Basalt Waste Isolation Project KW - movement KW - basalts KW - discharge KW - Yucca Mountain KW - Nevada KW - hydrology KW - Washington KW - Columbia River Basalt Group KW - pollution KW - Hanford Site KW - properties KW - Nye County Nevada KW - Miocene KW - aquifers KW - Tertiary KW - Neogene KW - BWIP KW - large igneous provinces KW - hydraulic conductivity KW - waste disposal KW - 30:Engineering geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51789066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Columbia+River+basalts%3B+do+they+leak%3F+A+retrospective+of+BWIP+program+data&rft.au=Spane%2C+Frank%3BReidel%2C+Stephen+P%3BJohnson%2C+Vernon+G%3BAnonymous&rft.aulast=Spane&rft.aufirst=Frank&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=136&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; Basalt Waste Isolation Project; basalts; BWIP; Cenozoic; Columbia River Basalt Group; discharge; flood basalts; fractures; ground water; Hanford Site; hazardous waste; hydraulic conductivity; hydrology; igneous rocks; large igneous provinces; Miocene; movement; Neogene; Nevada; Nye County Nevada; pollution; properties; radioactive waste; reservoir rocks; Tertiary; underground storage tanks; United States; volcanic rocks; Washington; waste disposal; waste disposal sites; Yucca Mountain ER - TY - JOUR T1 - Ongoing deformation and state of stress in the Columbia River flood basalts AN - 51788344; 2004-081395 AB - Over thirty years of instrumental seismic monitoring indicates ongoing deformation in the area of eastern Washington occupied by the Columbia River Flood Basalts. Most of the observed seismicity is associated with the Yakima Fold Belt, a series of east-west reverse faults and folds. Focal mechanisms of micro-earthquakes in the basalt show that these events are a result of north-south-oriented maximum compressive stress, consistent with the long-term formation of these geologic structures. The association of seismicity and the Yakima Fold Belt is of a regional nature rather than correlating with known faults or showing significant planar alignments that would indicate subsurface faults. Focal mechanisms for micro-earthquakes in the sub-basalt sediments and basement rocks also indicate this state of stress even though the vertical overburden stresses are greater. In the western part of the Yakima Fold Belt and the Cascade Range, there is a tendency for an increased element of (presumably right-lateral) strike-slip focal mechanisms, where the minimum compressive stress is oriented east-west rather than vertical. Seismicity in the basalts typically occurs as earthquake swarms, a series of tens to hundreds of micro-earthquakes that gradually increase in frequency and magnitude over periods of weeks to months, but without including an outstanding large event. This may indicate that the heterogeneous strength of the multiple basalt layers may lead to clusters of relatively small events within individual layers, separated in time due to slow plastic deformation and/or fluid flow in the weaker zones between them. Seismicity in the basalt layers is higher than in the sub-basalt layers, and the basalt group may form a rigid stress guide above the sub-basalt sediments. Variation in thickness of the basalt flows, or the existence of pre-existing fractures developed during growth of the Yakima Folds, does not seem consistent with the current seismicity pattern. The strength and thickness of sub-basalt layers may affect the stresses in the basalts. A basement high to the north may produce a buttress effect that affects the stresses and the structures of the Yakima Fold Belt. JF - Abstracts with Programs - Geological Society of America AU - Rohay, Alan C AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 136 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - Washington KW - volcanic rocks KW - igneous rocks KW - stress KW - Columbia River Basalt Group KW - strike-slip faults KW - deformation KW - Miocene KW - Cenozoic KW - Cascade Range KW - Tertiary KW - neotectonics KW - seismicity KW - Neogene KW - basalts KW - large igneous provinces KW - Yakima fold belt KW - tectonics KW - compression KW - earthquakes KW - faults KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51788344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Ongoing+deformation+and+state+of+stress+in+the+Columbia+River+flood+basalts&rft.au=Rohay%2C+Alan+C%3BAnonymous&rft.aulast=Rohay&rft.aufirst=Alan&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=136&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalts; Cascade Range; Cenozoic; Columbia River Basalt Group; compression; deformation; earthquakes; faults; flood basalts; igneous rocks; large igneous provinces; Miocene; Neogene; neotectonics; seismicity; stress; strike-slip faults; tectonics; Tertiary; United States; volcanic rocks; Washington; Yakima fold belt ER - TY - JOUR T1 - Mineralogical and geochemical composition of samples of Pomona Member, Saddle Mountains Basalt AN - 51788190; 2004-081388 AB - We present and discuss preliminary routine electron probe microanalysis and X-ray fluorescence analysis data obtained from a group of selected samples of the 12 Ma Pomona Member of the Saddle Mountains Basalt (SMB) formation of the Columbia River Basalt Group (CRBG) of north-western USA. We compare and contrast these data to those of representative samples of other units of the CRBG from our database. Much has been written of the homogeneity of the CRBG, but detailed investigations have shown that careful selection of chemical parameters provides distinctive criteria and insight with regard to petrological processes. The Pomona basalts have consistently high (up to 8.11 wt%) MgO concentrations. Compared to representative Grande Ronde Basalt (the highest volume CRBG formation) and Imnaha Basalt samples, the Pomona basalts have the lowest normative apatite and the highest values of normative diopside. The trace and rare earth element patterns are similar to those of Imnaha Basalt, rather than to other, more enriched, members of the SMB. The Pomona Member samples we studied have no glass and contain plagioclase and augitic clinopyroxene as dominant matrix and groundmass phases. The compositions of plagioclase microcrysts are labradoritic to bytownitic. Whole rock compositions were taken as proxies of the liquid composition, so we could apply principles of Ca-Na plagioclase-liquid exchange to estimate pre-eruptive magmatic water contents to be less than 2.4 wt%. Preliminary pressures and temperatures of the magmas were estimated from pyroxene--liquid equilibria to be 0.27 to 0.56 GPa and 1175 to 1201 degrees C, respectively. These values, and the positive correlation between calculated P and T, suggest that magma storage occurred at mid-crustal levels or deeper, which is consistent with our conclusions from a previous study of CRBG Grande Ronde basalts. Significantly, the temperatures calculated from the Pomona magmas are higher than those of all other selected samples across the CRBG entire section. The temperatures and geochemical character of the Pomona rocks suggest that considerable clarification about the nature and evolution of CRBG primary magmas will be obtained by future studies of the Pomona Member. JF - Abstracts with Programs - Geological Society of America AU - Caprarelli, Graziella AU - Reidel, Stephen P AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 135 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - volcanic rocks KW - Pomona Member KW - igneous rocks KW - temperature KW - electron probe data KW - Imnaha Basalt KW - Cenozoic KW - Oregon KW - mineral composition KW - phase equilibria KW - volcanism KW - basalts KW - X-ray fluorescence spectra KW - spectra KW - trace elements KW - chemical composition KW - geochemistry KW - Washington KW - pressure KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Saddle Mountains Basalt KW - Tertiary KW - Neogene KW - magmas KW - large igneous provinces KW - petrographic norms KW - 02C:Geochemistry of rocks, soils, and sediments KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51788190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Mineralogical+and+geochemical+composition+of+samples+of+Pomona+Member%2C+Saddle+Mountains+Basalt&rft.au=Caprarelli%2C+Graziella%3BReidel%2C+Stephen+P%3BAnonymous&rft.aulast=Caprarelli&rft.aufirst=Graziella&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chemical composition; Columbia River Basalt Group; electron probe data; flood basalts; geochemistry; Grande Ronde Basalt; igneous rocks; Imnaha Basalt; large igneous provinces; magmas; mineral composition; Miocene; Neogene; Oregon; petrographic norms; phase equilibria; Pomona Member; pressure; Saddle Mountains Basalt; spectra; temperature; Tertiary; trace elements; United States; volcanic rocks; volcanism; Washington; X-ray fluorescence spectra ER - TY - JOUR T1 - Biostratigraphy of Columbia River Basalt Group petrified forests AN - 51787468; 2004-081496 AB - Well-known CRBG petrified wood localities in central Washington are placed in a stratigraphic context in an effort to determine their occurrence, lateral extent, and mode of deposition. Three major petrified forests are recognized on the basis of in situ stumps, forest litter, soil horizons and abundance of logs. These forests correspond to and help define temporal lulls in flood basalt activity: Umtanum Petrified Forest at the Umtanum unit/Sentinal Bluffs unit of the Grande Ronde Basalt ( approximately 15.6 mya); Ginkgo Petrified Forest at the Vantage interbed/Ginkgo flow of the Wanapum Basalt ( approximately 15.5-15.4 mya); and Saddle Mountains Petrified Forest at the Roza flow/Priest Rapids flow of the Wanapum Basalt ( approximately 14.5 mya). Widespread localities with abundant petrified wood at the latest Grande Ronde Basalt/Vantage interbed/Ginkgo flow zone suggest that the unique lahar deposition of logs at Ginkgo Petrified Forest State Park, from a probable northwesterly volcanic event, may have also had a major local derivation. Ginkgo Petrified Forest is tentatively expanded to include several petrified wood assemblages. Three other important sites are cataloged: an unnamed in situ petrified forest at Locke Lake, WA/Mosier, OR, at the Ginkgo flow/Sand Hollow flow level; petrified wood at Roosevelt, WA, possibly in upper Priest Rapids flows; and a probable petrified forest at Sunnyside, at the Umatilla flow/Pomona flow level, making it the youngest occurring site at approximately 12 mya. Other occurrences of petrified wood are either the result of log and sediment rafting by lava/minor pillow/palagonite complexes (seen at Vantage and Sentinal Gap) or transport and burial within massive pillow/palagonite complexes (Petrified Canyon in Moses Coulee). A number of sites remain to be investigated. Previous attempts to identify petrified forests by wood identification/generic abundance are critiqued. Current research on leaf-impression and permineralized bog floras provide useful constraints on paleoecological interpretations based on petrified wood occurrences/identification. JF - Abstracts with Programs - Geological Society of America AU - Orsen, Mark J AU - Reidel, Stephen P AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 551 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - terrestrial environment KW - volcanic rocks KW - igneous rocks KW - leaves KW - fossilization KW - paleoecology KW - Cenozoic KW - Wanapum Basalt KW - basalts KW - taphonomy KW - paludal environment KW - basalt flows KW - central Washington KW - Plantae KW - fossil wood KW - Washington KW - lava flows KW - biostratigraphy KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Miocene KW - Tertiary KW - lava KW - Neogene KW - Columbia Plateau KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51787468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Biostratigraphy+of+Columbia+River+Basalt+Group+petrified+forests&rft.au=Orsen%2C+Mark+J%3BReidel%2C+Stephen+P%3BAnonymous&rft.aulast=Orsen&rft.aufirst=Mark&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=551&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalt flows; basalts; biostratigraphy; Cenozoic; central Washington; Columbia Plateau; Columbia River Basalt Group; flood basalts; fossil wood; fossilization; Grande Ronde Basalt; igneous rocks; lava; lava flows; leaves; Miocene; Neogene; paleoecology; paludal environment; Plantae; taphonomy; terrestrial environment; Tertiary; United States; volcanic rocks; Wanapum Basalt; Washington ER - TY - JOUR T1 - Eruption and emplacement of a Grande Ronde flood basalt, Columbia River Basalt Group AN - 51787427; 2004-081492 AB - The eruption of Sentinel Bluffs Member lavas marked the end of the greatest period of Columbia River Basalt Group volcanism, the Grande Ronde Basalt. The Sentinel Bluffs Member lavas erupted from a northerly trending vent system and flowed westward down an ancestral paleoslope covering over 169,700 km (super 2) and producing over 10,000 km (super 3) of lava. The member is divided into six eruptions that are distinguished by their compositions. The first eruption was the most voluminous, but volumes declined with later eruptions until the final eruption that produced the second largest volume of basalt. Sentinel Bluffs flows are relatively homogeneous which allows them to be recognized throughout the province. One exception is the "Cohassett flow," where four eruptions combined to form one local inflated lava. Compositional zonation reflects the sequence of eruptions. The original lavas remained intact except for mixing along their contacts, which are separated by thin zones of vesicles. A thick vesicle zone called the "interior vesicular zone" marks the boundary between the last two eruptions and represents volatile-rich lava. There are two compositional trends in the Sentinel Bluffs Member that are defined best by TiO (sub 2) and P (sub 2) O (sub 5) . The six eruptions fall along one or the other trend, but neither trend is defined by timing of eruptions or location along the vent system. Fractionation or eruption of a zoned magma chamber cannot explain adequately the six compositional types of the Sentinel Bluffs Member. The compositional types and the field relations are best explained by rapid changes in magma composition feeding the flows and rapid eruption and emplacement of the lavas. JF - Abstracts with Programs - Geological Society of America AU - Reidel, Stephen P AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 550 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - volcanic rocks KW - lava flows KW - igneous rocks KW - Columbia River Basalt Group KW - Grande Ronde Basalt KW - Sentinel Bluffs Member KW - Miocene KW - emplacement KW - Cenozoic KW - Tertiary KW - lava KW - Neogene KW - magmas KW - eruptions KW - basalts KW - composition KW - Columbia Plateau KW - fractional crystallization KW - basalt flows KW - magma chambers KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51787427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Eruption+and+emplacement+of+a+Grande+Ronde+flood+basalt%2C+Columbia+River+Basalt+Group&rft.au=Reidel%2C+Stephen+P%3BAnonymous&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=550&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalt flows; basalts; Cenozoic; Columbia Plateau; Columbia River Basalt Group; composition; emplacement; eruptions; flood basalts; fractional crystallization; Grande Ronde Basalt; igneous rocks; lava; lava flows; magma chambers; magmas; Miocene; Neogene; Sentinel Bluffs Member; Tertiary; United States; volcanic rocks ER - TY - JOUR T1 - Crystal-mush compaction in the Cohassett Flow, Hanford, Washington AN - 51787134; 2004-081391 AB - Although the vertical chemical profile through the Cohassett flow beneath Hanford, Washington, is complicated and suggests that the flow was inflated by a central pulse of distinctly different composition magma, the profile through the central part has a simple shape that is consistent with compaction of crystal mush with upward expulsion of residual liquid. As in most thick flood-basalt flows, the downward crystallizing roof zone (entablature) has a distinctly different texture from the upward accumulating floor zone (colonnade). The texture of the floor zone, where the compaction occurs, is most easily interpreted as resulting from recrystallization of material that sank from the roof zone as dense plumes of crystal mush. During recrystallization, the texture of the crystal mush becomes anisotropic as a result of compaction. The network of plagioclase crystals surrounding granular pyroxene patches becomes horizontally flattened. The plagioclase crystals within the network, which are initially randomly oriented and separated by interstitial liquid, rotate into parallel alignment and wrap around the pyroxene patches in a manner resembling roof tiles. These tiled plagioclase laths have less residual liquid between them than do the more randomly oriented crystals in the less compacted rock. Plagioclase phenocrysts trapped in the compacting mush are rotated toward horizontal. The asymmetric distribution of patches of glass trapped on the lower side of horizontal plagioclase phenocrysts is evidence of upward migration of residual liquid during compaction. Compaction profiles through the flow are determined using four independent, quantitative measures of textural anisotropy. These profiles agree well with the amount of compaction (maximum approximately 30%) indicated from the chemical profile. Quantitative modeling of crystallization of the central part of this flow indicates that the observed chemical profile can result from compaction as long as a touching framework of crystals forms early enough ( approximately 30% crystallized) for the mush to have a high permeability ( approximately 10 (super -9) m (super 2) ). If crystal mush can undergo compaction in a flood-basalt flow, compaction is likely to be an important process of differentiation in intrusive bodies. JF - Abstracts with Programs - Geological Society of America AU - Philpotts, Anthony R AU - Reidel, Stephen P AU - Philpotts, Doreen E AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 135 EP - 136 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - Cohassett Flow KW - volcanic rocks KW - igneous rocks KW - melts KW - Cenozoic KW - mineral composition KW - volcanism KW - basalts KW - mineral assemblages KW - basalt flows KW - Washington KW - Columbia River Basalt Group KW - Hanford Site KW - properties KW - Miocene KW - models KW - crystals KW - compaction KW - Tertiary KW - Neogene KW - magmas KW - petrography KW - crystallization KW - large igneous provinces KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51787134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Crystal-mush+compaction+in+the+Cohassett+Flow%2C+Hanford%2C+Washington&rft.au=Philpotts%2C+Anthony+R%3BReidel%2C+Stephen+P%3BPhilpotts%2C+Doreen+E%3BAnonymous&rft.aulast=Philpotts&rft.aufirst=Anthony&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalt flows; basalts; Cenozoic; Cohassett Flow; Columbia River Basalt Group; compaction; crystallization; crystals; flood basalts; Hanford Site; igneous rocks; large igneous provinces; magmas; melts; mineral assemblages; mineral composition; Miocene; models; Neogene; petrography; properties; Tertiary; United States; volcanic rocks; volcanism; Washington ER - TY - JOUR T1 - A general reaction network approach for modeling biogeochemical reactive transport AN - 51784582; 2004-081627 AB - Most biogeochemical reactive transport simulators require reactions and rate laws to be specified in a limited number of canonical forms. In some cases (e.g., to describe the adsorption process with langmuir isotherm or to describe the reaction mechanism for pyrite oxidation using shrinking core model, etc.), this requirement is overly restrictive, and the simulator must be recoded, not only to accept the new forms, but also to address the construction of corresponding jacobians for the Newton-Raphson solution scheme. A methodology to overcome these difficulties and limitations was recently developed and tested in the BIOGEOCHEM simulator. The simulator interprets symbolic, user-specified equilibrium and kinetic reactions and rate laws of virtually any type for input to the MAPLE symbolic mathematical software package. MAPLE generates Fortran-90 code for the analytical jacobian expressions which are compiled and linked into the BIOGEOCHEM executable. A reaction network with user-defined expressions for equilibrium reactions and rate laws for kinetic reactions is used to demonstrate the methodology and test the efficiency against numerically approximated jacobians. JF - Abstracts with Programs - Geological Society of America AU - Fang, Yilin AU - Yabusaki, Steve B AU - Yeh, Gour-Tsyh AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 573 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - MAPLE KW - computer languages KW - data processing KW - computer programs KW - BIOGEOCHEM KW - biogenic processes KW - chemical reactions KW - transport KW - phase equilibria KW - Fortran KW - digital simulation KW - kinetics KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51784582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+general+reaction+network+approach+for+modeling+biogeochemical+reactive+transport&rft.au=Fang%2C+Yilin%3BYabusaki%2C+Steve+B%3BYeh%2C+Gour-Tsyh%3BAnonymous&rft.aulast=Fang&rft.aufirst=Yilin&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=573&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biogenic processes; BIOGEOCHEM; chemical reactions; computer languages; computer programs; data processing; digital simulation; Fortran; geochemistry; kinetics; MAPLE; phase equilibria; transport ER - TY - JOUR T1 - Three-dimensional transient inverse calibration of a site-wide groundwater flow model using a facies-based approach at the Hanford Site, southeast Washington AN - 51769637; 2005-004154 AB - A three-dimensional transient inverse calibration has been performed using UCODE, a universal inverse modeling code developed jointly by the U.S. Geological Survey and the International Groundwater Modeling Center at the Colorado School of Mines. The transient inverse calibration evaluates hydraulic impacts to the unconfined aquifer system of Hanford waste management operations between 1943 and present and uses approximately 70,000 water level measurements made at the Hanford Site since the mid-1940s. This effort is part of an overall effort to strengthen the technical defensibility of the groundwater flow and transport model at the Hanford Site and to develop a more robust capability to incorporate uncertainty related to alternative conceptual models into future predictions. The focus of the current inverse modeling effort has been to implement and evaluate a facies-based approach for representing the hydraulic conductivity distributions in the Hanford and middle Ringold formations, two major hydrostratigraphic units within the unconfined aquifer system. Other modifications that were incorporated into this effort include 1) improved approaches for handling run-on recharge from upland areas (Cold Creek, Dry Creek, Rattlesnake Springs) based on watershed modeling results, 2) improved approach for representing artificial discharges from site operations, and 3) minor changes to the geologic conceptual model. An overall comparison of residual error statistics generally indicates an improvement in model fit for the facies-based model relative to a previously inversed model. The current model represents a first attempt to fully incorporate the facies-based approach for representing the hydrogeologic structure of the model, and further refinement of this distribution. We anticipate additional. JF - Abstracts with Programs - Geological Society of America AU - Vermeul, Vince R AU - Bergeron, Marcel P AU - Cole, Charles R AU - Nichols, William E AU - Scheibe, Tim D AU - Thorne, Paul D AU - Waichler, Scott R AU - Williams, Mark D AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 450 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Cold Creek KW - survey organizations KW - U. S. Geological Survey KW - Rattlesnake Springs KW - government agencies KW - calibration KW - environmental analysis KW - ground water KW - environmental management KW - Cenozoic KW - movement KW - sediments KW - academic institutions KW - Dry Creek KW - hydrology KW - Hanford Formation KW - Washington KW - monitoring KW - three-dimensional models KW - pollutants KW - pollution KW - Hanford Site KW - inverse problem KW - properties KW - Ringold Formation KW - research KW - porosity KW - Colorado School of Mines KW - aquifers KW - models KW - Tertiary KW - hydrostratigraphy KW - Neogene KW - Pliocene KW - hydraulic conductivity KW - permeability KW - facies KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51769637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Three-dimensional+transient+inverse+calibration+of+a+site-wide+groundwater+flow+model+using+a+facies-based+approach+at+the+Hanford+Site%2C+southeast+Washington&rft.au=Vermeul%2C+Vince+R%3BBergeron%2C+Marcel+P%3BCole%2C+Charles+R%3BNichols%2C+William+E%3BScheibe%2C+Tim+D%3BThorne%2C+Paul+D%3BWaichler%2C+Scott+R%3BWilliams%2C+Mark+D%3BAnonymous&rft.aulast=Vermeul&rft.aufirst=Vince&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - academic institutions; aquifers; calibration; Cenozoic; Cold Creek; Colorado School of Mines; Dry Creek; environmental analysis; environmental management; facies; government agencies; ground water; Hanford Formation; Hanford Site; hydraulic conductivity; hydrology; hydrostratigraphy; inverse problem; models; monitoring; movement; Neogene; permeability; Pliocene; pollutants; pollution; porosity; properties; Rattlesnake Springs; research; Ringold Formation; sediments; survey organizations; Tertiary; three-dimensional models; U. S. Geological Survey; United States; Washington ER - TY - JOUR T1 - Geostatistical analysis of historical groundwater concentration data for calibration of flow and transport models AN - 51769406; 2005-004153 AB - Large amounts of historical data are available on the concentration of selected contaminants in groundwater at the Hanford Site, and this data can be used to evaluate fate and transport model performance used for decision making at the Site, including a System Assessment Capability (SAC) model recently developed for the Hanford Site. The historical groundwater contaminant concentration data can also be used to constrain initial inventories for sources of particular plumes, which can be highly uncertain and are important inputs to the SAC and other risk assessment models of the Hanford Site. Geostatistical methods applied to the historical concentration data were used to generate several hundred stochastic simulations of four radioactive contaminants: tritium, technetium-99, iodine-129, and uranium, for two time points, 1992 and 2001. The simulations included all major plumes for each of these radioactive contaminants at the site and were generated using a 50-m grid covering 781 square kilometers. Post-processing of the simulated contaminant concentrations on the fine grid provided several quantitative metrics that will be used to evaluate the overall performance of the SAC model. One metric was the total area for which the contaminant concentration was above the drinking water standard (DWS) for each realization. Analysis of the suite of realizations provided a measure of uncertainty about the area above the DWS. The concentration simulations were also converted to estimates of the contaminant mass (or activity) in each grid cell. Mass estimates were based on probability distributions for the porosity of each geologic unit and a model of the thickness of the geologic units present in each cell of the grid. The post-processed simulations provided probability distributions of the total mass or activity for each contaminant, as well as estimates of the center of mass of each plume. The approach provides a best estimate of the metrics, as well as estimates of the uncertainty in the metrics. Output from the SAC model will be compared to the geostatistical results and used to help calibrate the model. General results of the analysis indicate that the contaminant mass within a plume is only known to within a factor of about four, even when the sampled concentration data are assumed to be without error. JF - Abstracts with Programs - Geological Society of America AU - Murray, Christopher J AU - Chien, Yi-Ju AU - Thorne, Paul D AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 450 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - solute transport KW - water quality KW - contaminant plumes KW - isotopes KW - data processing KW - calibration KW - simulation KW - environmental analysis KW - drinking water KW - ground water KW - radioactive isotopes KW - movement KW - data bases KW - discharge KW - chemical composition KW - geochemistry KW - Washington KW - monitoring KW - pollutants KW - statistical analysis KW - pollution KW - Hanford Site KW - aquifers KW - models KW - risk assessment KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51769406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Geostatistical+analysis+of+historical+groundwater+concentration+data+for+calibration+of+flow+and+transport+models&rft.au=Murray%2C+Christopher+J%3BChien%2C+Yi-Ju%3BThorne%2C+Paul+D%3BAnonymous&rft.aulast=Murray&rft.aufirst=Christopher&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; calibration; chemical composition; contaminant plumes; data bases; data processing; discharge; drinking water; environmental analysis; geochemistry; ground water; Hanford Site; isotopes; models; monitoring; movement; pollutants; pollution; radioactive isotopes; risk assessment; simulation; solute transport; statistical analysis; United States; Washington; water quality ER - TY - JOUR T1 - History matching of environmental data at Hanford using the System Assessment Capability (SAC) model AN - 51769026; 2005-004152 AB - The System Assessment Capability (SAC) model was developed to facilitate the understanding of the effects of waste disposal at Hanford and to aid in decision making for environmental cleanup. The SAC consists of a linked set of models that stochastically simulate the inventory, release, environmental transport and impacts of Hanford contaminants, and their associated environmental data. In order to have confidence in these models, it is necessary to compare historical data to the SAC model results. For SAC Rev. 1, historical data were matched to model results for contaminant transport in the atmosphere and the groundwater. For the purposes of the history matching exercise, the SAC Rev. 1 model was used to simulate the release, migration and fate of contaminants for the years 1944 to 2020. Comparisons were conducted for contaminants and time periods for which historical data were available. SAC is notable for modeling both past and future releases and migration (rather than adopting an initial condition), so that history matching can be used to demonstrate the veracity of the simulator. Release of Krypton-85 from various source areas to the atmosphere during the years 1983-1987 was simulated using the SAC Rev. 1 component model RATCHET2. Model results were compared to monitoring data for various sites. Transport of contaminants in the groundwater was simulated using the SAC Rev. 1 component model CFEST. Geostatistical methods were used to generate groundwater contaminant distributions for tritium, technetium-99, iodine-129, uranium, and hexavalent chromate based on historical data for comparison to model results. Mass in the aquifer, center of mass of the plume, and total area for which contaminant concentrations are above the drinking water standard were used as comparison metrics. JF - Abstracts with Programs - Geological Society of America AU - Wurstner, Signe K AU - Nichols, William E AU - Eslinger, Paul W AU - Last, George V AU - Engel, Dave W AU - Ramsdell, James V, Jr AU - Kincaid, Charles T AU - Bryce, Robert W AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 450 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - water quality KW - Washington KW - monitoring KW - isotopes KW - pollutants KW - reclamation KW - pollution KW - Hanford Site KW - simulation KW - environmental analysis KW - drinking water KW - remediation KW - ground water KW - models KW - radioactive isotopes KW - risk assessment KW - waste disposal KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51769026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=History+matching+of+environmental+data+at+Hanford+using+the+System+Assessment+Capability+%28SAC%29+model&rft.au=Wurstner%2C+Signe+K%3BNichols%2C+William+E%3BEslinger%2C+Paul+W%3BLast%2C+George+V%3BEngel%2C+Dave+W%3BRamsdell%2C+James+V%2C+Jr%3BKincaid%2C+Charles+T%3BBryce%2C+Robert+W%3BAnonymous&rft.aulast=Wurstner&rft.aufirst=Signe&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - drinking water; environmental analysis; ground water; Hanford Site; isotopes; models; monitoring; pollutants; pollution; radioactive isotopes; reclamation; remediation; risk assessment; simulation; United States; Washington; waste disposal; water quality ER - TY - JOUR T1 - Simulation of carbon tetrachloride migration from the 216-Z-9 Trench at Hanford AN - 51769005; 2005-004149 AB - From July 1955 through June 1962, approximately 4,090,000 L of waste water, including 316,000 L of a mixture of dense, non-aqueous phase liquids (DNAPL), was discharged into the vadose zone of the Hanford Site through the 216-Z-9 Trench. Approximately 74% (by volume) of this DNAPL was carbon tetrachloride (CCl (sub 4) ). Three-dimensional numerical simulations were conducted of the three-phase (aqueous, gas, NAPL) migration of the disposed liquids from the trench using the STOMP code. The model domain is 440-m (E-W) by 540-m (N-S) by 201-m (ground surface to top of basalt) and consists of 12 hydrostratigraphic units constructed from geologic interpretations of borehole data (including drillers' logs, geologists' logs, particle size data, calcium carbonate content, moisture content, and geophysical logs). EarthVision (super R) software was used to interpolate the hydrostratigraphic units between boreholes. Simulations were conducted from 1955 through present to evaluate the evolution and current status of the plume. In addition to the base case, 20 sensitivity cases were simulated to analyze the sensitivity of the model results to uncertainties in the total volume of DNAPL released, DNAPL fluid properties, source characteristics (area and infiltration rates), soil hydraulic properties (porosity, permeability, anisotropy, fluid entry pressures, pore geometry parameters), and maximum residual DNAPL saturation. Simulation results are compared with observed field data and are evaluated using spatial moment analyses and integrated fluxes of DNAPL, dissolved aqueous-phase CCl (sub 4) , and dissolved gas-phase CCl (sub 4) crossing the model boundaries. JF - Abstracts with Programs - Geological Society of America AU - Rockhold, Mark L AU - Oostrom, Mart AU - White, Mark D AU - Thorne, Paul D AU - Last, George V AU - Truex, Mike J AU - Rohay, Virginia J AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 449 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - chlorinated hydrocarbons KW - well-logging KW - simulation KW - ground water KW - carbon KW - movement KW - halogenated hydrocarbons KW - geochemistry KW - soils KW - hydrology KW - Washington KW - monitoring KW - trenching KW - pollution KW - Hanford Site KW - hydrochemistry KW - porosity KW - carbon tetrachloride KW - nonaqueous phase liquids KW - physical properties KW - organic compounds KW - boreholes KW - hydrostratigraphy KW - hydraulic conductivity KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51769005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Simulation+of+carbon+tetrachloride+migration+from+the+216-Z-9+Trench+at+Hanford&rft.au=Rockhold%2C+Mark+L%3BOostrom%2C+Mart%3BWhite%2C+Mark+D%3BThorne%2C+Paul+D%3BLast%2C+George+V%3BTruex%2C+Mike+J%3BRohay%2C+Virginia+J%3BAnonymous&rft.aulast=Rockhold&rft.aufirst=Mark&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - boreholes; carbon; carbon tetrachloride; chlorinated hydrocarbons; geochemistry; ground water; halogenated hydrocarbons; Hanford Site; hydraulic conductivity; hydrochemistry; hydrology; hydrostratigraphy; monitoring; movement; nonaqueous phase liquids; organic compounds; permeability; physical properties; pollution; porosity; simulation; soils; trenching; United States; Washington; well-logging ER - TY - JOUR T1 - Imaging clastic dikes at the Hanford Site with ground penetrating radar AN - 51768539; 2005-004146 AB - The Hanford site contains numerous clastic dikes that are possible conduits for water flow through the vadose zone at Hanford. The near-surface sediments at the Hanford site predominantly consist of coarse to fine grained sands. The dikes are composed of a thin, clay or silt skin with sand and silt as the in-filling material. The dikes are easily located at the surface by vegetation changes. However, the subsurface character of the dikes is often poorly known. Furthermore, many dikes may not intersect the surface and thus are undetected. To determine the spatial distribution and depth of clastic dikes present at the Hanford site, we collected 3-dimensional, 100 MHz GPR surface reflection data at two sites; the 216-S-16 Pond and the Army Loop Road sites. The 3-dimensional data consist of 90 or 60 m lines with a spacing between traces of 0.1 m. We collected lines every 2 m to cover the area. We acquired more widely spaced cross-lines to provide ties between the lines. We also collected a 6.9 km linear profile with trace spacing of about 0.1 m to understand the dikes at larger scales. The survey crossed desert grassland similar to the Army Loop Road area and traversed many sand dunes and blowouts. The sand dunes enable deeper signal penetration below the land surface, but the data may not image any deeper below a common reference elevation. The dikes are easily distinguished in the GPR data by diffractions from the dike edge and a loss of coherence in underlying reflections. In general, the data quality is better at the Army Loop Road and Traverse sites than at the 216-S-16 Pond site. Cobbles and boulders are more common at the 216-S-16 Pond site and probably cause the poorer data quality. The signal penetration, and thus the ability to map the dikes in the subsurface, varies between 5 to 12 m below the land surface. JF - Abstracts with Programs - Geological Society of America AU - Clement, William P AU - Murray, Christopher J AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 449 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - imagery KW - geophysical surveys KW - isotopes KW - radioactivity KW - ground-penetrating radar KW - unsaturated zone KW - clastic dikes KW - ground water KW - soft sediment deformation KW - radioactive isotopes KW - sediments KW - sedimentary structures KW - sand KW - Washington KW - monitoring KW - clastic sediments KW - geophysical methods KW - radar methods KW - Hanford Site KW - reflection methods KW - seismic methods KW - surveys KW - nuclear facilities KW - geophysical profiles KW - 06A:Sedimentary petrology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51768539?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Imaging+clastic+dikes+at+the+Hanford+Site+with+ground+penetrating+radar&rft.au=Clement%2C+William+P%3BMurray%2C+Christopher+J%3BAnonymous&rft.aulast=Clement&rft.aufirst=William&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - clastic dikes; clastic sediments; geophysical methods; geophysical profiles; geophysical surveys; ground water; ground-penetrating radar; Hanford Site; imagery; isotopes; monitoring; nuclear facilities; radar methods; radioactive isotopes; radioactivity; reflection methods; sand; sedimentary structures; sediments; seismic methods; soft sediment deformation; surveys; United States; unsaturated zone; Washington ER - TY - JOUR T1 - System assessment capability; an integrated model for simulating the transport, impacts and remediation of contaminants at the Hanford Site AN - 51768503; 2005-004151 AB - Considerable effort has gone into the characterization of the saturated and vadose zone hydrology at the Hanford Site so that contamination remaining from past operations can be effectively remediated. Research has also been done to identify the location and quantity of waste remaining at the Site and the effects various contaminants can have on human and ecological health. The resulting understanding of each of these topics must be collectively taken into account as decisions about Hanford cleanup are made. To facilitate that process, a system of numerical models was assembled to simulate the inventory, release, environmental transport and impacts of Hanford contaminants. This set of models and the associated data is called the System Assessment Capability. The capability simulates contaminant release, migration, and fate from the initiation of Hanford Site operations in 1944 forward. It illustrates historical and near-term influences on long-term risk and impact and, therefore, provides an opportunity to history match to observed events using waste site characterization data and results of groundwater monitoring. The capability is a stochastic simulation tool able to address 1000 waste discharge and disposal sites and multiple contaminants for a period of 10,000 years. It has been designed to also simulate a deterministic case as a single stochastic realization. Human health and ecological risks as well as impacts to the regional economy and local cultures are quantified. The capability was first developed in 2001 and has undergone considerable modification as recent research has provided improved understanding of contaminant inventory, transport and impacts. The capability is being used to prioritize remedial actions, evaluate alternatives, and communicate likely future impacts of Hanford on the environment. JF - Abstracts with Programs - Geological Society of America AU - Kincaid, Charles T AU - Bryce, Robert W AU - Eslinger, Paul W AU - Nichols, William E AU - Brandt, C A AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 450 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - solute transport KW - hydrology KW - Washington KW - monitoring KW - numerical models KW - geologic hazards KW - pollutants KW - unsaturated zone KW - pollution KW - Hanford Site KW - simulation KW - environmental analysis KW - environmental effects KW - remediation KW - ground water KW - models KW - movement KW - risk assessment KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51768503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=System+assessment+capability%3B+an+integrated+model+for+simulating+the+transport%2C+impacts+and+remediation+of+contaminants+at+the+Hanford+Site&rft.au=Kincaid%2C+Charles+T%3BBryce%2C+Robert+W%3BEslinger%2C+Paul+W%3BNichols%2C+William+E%3BBrandt%2C+C+A%3BAnonymous&rft.aulast=Kincaid&rft.aufirst=Charles&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - environmental analysis; environmental effects; geologic hazards; ground water; Hanford Site; hydrology; models; monitoring; movement; numerical models; pollutants; pollution; remediation; risk assessment; simulation; solute transport; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - Xenon isotopes in soil gas as indicators of buried radioactive waste AN - 51767411; 2005-004162 AB - Levels of short-lived and stable xenon isotopes were measured in soil gas samples collected from three different waste disposal sites at the U.S. Department of Energy's Hanford Site, Washington State. Short-lived isotopes Xe-133 and Xe-135 were measured using a modification of the Automated Radioxenon Sample and Analysis (ARSA) system developed for Comprehensive Test Ban Treaty Verification. Stable isotopes were measured by rare gas mass spectrometry. A site that received large amounts of plutonium waste after separation from fission products showed detectable levels of radioxenon from the spontaneous fission of Pu-240 but no detectable alteration of stable xenon isotopes from the atmospheric background. Altered stable xenon isotope ratios were detected in soil gas samples collected near a radioactive waste landfill. The altered stable xenon isotope ratios are consistent with the probable presence of irradiated fuel elements in the burial ground. The measurements show the usefulness of xenon isotopic measurements for location and characterization of waste sources using minimally invasive techniques. Column transport studies indicate xenon transport through moist Hanford soil will be retarded relative to helium transport. This retardation may limit the distance short-lived isotopes can be detected from the source. JF - Abstracts with Programs - Geological Society of America AU - Dresel, P Evan AU - Olsen, Khris B AU - McIntyre, Justin I AU - Kennedy, B Mack AU - Hayes, James C AU - Horton, Duane G AU - Mitroshkov, Alexandre V AU - Panisko, Mark E AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 451 EP - 452 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - hazardous waste KW - alteration KW - isotopes KW - waste disposal sites KW - mass spectra KW - burial KW - radioactive waste KW - waste management KW - noble gases KW - movement KW - Xe-135 KW - Xe-133 KW - spectra KW - chemical composition KW - geochemistry KW - soils KW - Washington KW - monitoring KW - isotope ratios KW - pollution KW - Hanford Site KW - indicators KW - xenon KW - waste disposal KW - soil gases KW - underground disposal KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51767411?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Xenon+isotopes+in+soil+gas+as+indicators+of+buried+radioactive+waste&rft.au=Dresel%2C+P+Evan%3BOlsen%2C+Khris+B%3BMcIntyre%2C+Justin+I%3BKennedy%2C+B+Mack%3BHayes%2C+James+C%3BHorton%2C+Duane+G%3BMitroshkov%2C+Alexandre+V%3BPanisko%2C+Mark+E%3BAnonymous&rft.aulast=Dresel&rft.aufirst=P&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=451&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alteration; burial; chemical composition; geochemistry; Hanford Site; hazardous waste; indicators; isotope ratios; isotopes; mass spectra; monitoring; movement; noble gases; pollution; radioactive waste; soil gases; soils; spectra; underground disposal; United States; Washington; waste disposal; waste disposal sites; waste management; Xe-133; Xe-135; xenon ER - TY - JOUR T1 - Mineralogical and bulk-rock geochemical signatures of Ringold and Hanford Formation sediments AN - 51767388; 2005-004147 AB - The Ringold Formation and post-Ringold sediments (including cataclysmic flood deposits of the Hanford formation) constitute the primary aquifer and vadose zone sediments beneath the U.S. Department of Energy's Hanford Site. Although much is known about these formations from over 50 years of study, quantitative methods for classifying these materials in support of flow and transport models have not been developed. The purpose of this study was to explore the possibility of using statistical methods to classify sediment samples belonging to the Hanford or Ringold formations using mineralogy and geochemistry data. To this end, existing electron microprobe (EM), petrographic (Petro), and X-ray fluorescence (XRF) data were compiled into a central, digital database. Descriptive statistics, tests of difference (e.g. ANOVA), principal component analysis, and various classification analyses were applied to the data as a whole, as well as for subgroups comprised of samples from the two principal formations and for the two primary sampling locations (200 West Area and 200 East Area). We were able to use several statistical techniques to generate effective classifiers for distinguishing between Hanford and Ringold Formation samples using mineralogical and geochemical data. Classifiers for the 200 West Area that were generated using discriminant function analysis show good performance for the EM, Petro, and XRF datasets. However, spatial variability and the lack of stringent validation data suggest that generalization of the classification rules to areas outside of 200 West Area may be premature. JF - Abstracts with Programs - Geological Society of America AU - Xie, Yulong AU - Last, George V AU - Murray, Christopher J AU - Mackley, Robert D AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 449 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - digital data KW - data processing KW - unsaturated zone KW - ground water KW - electron probe data KW - Cenozoic KW - sedimentary rocks KW - mineral composition KW - sampling KW - sediments KW - data bases KW - X-ray fluorescence spectra KW - spectra KW - chemical composition KW - geochemistry KW - hydrology KW - Hanford Formation KW - Washington KW - statistical analysis KW - Hanford Site KW - Ringold Formation KW - aquifers KW - Tertiary KW - Neogene KW - Pliocene KW - petrography KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51767388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Mineralogical+and+bulk-rock+geochemical+signatures+of+Ringold+and+Hanford+Formation+sediments&rft.au=Xie%2C+Yulong%3BLast%2C+George+V%3BMurray%2C+Christopher+J%3BMackley%2C+Robert+D%3BAnonymous&rft.aulast=Xie&rft.aufirst=Yulong&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; Cenozoic; chemical composition; data bases; data processing; digital data; electron probe data; geochemistry; ground water; Hanford Formation; Hanford Site; hydrology; mineral composition; Neogene; petrography; Pliocene; Ringold Formation; sampling; sedimentary rocks; sediments; spectra; statistical analysis; Tertiary; United States; unsaturated zone; Washington; X-ray fluorescence spectra ER - TY - JOUR T1 - Accelerated weathering experiments of two low-activity waste glasses using the pressurized unsaturated flow (PUF) apparatus AN - 51767375; 2005-004160 AB - Low Activity Waste (LAW) performance assessment models must account for the long term release rate from LAW glass formulations. The release rate is a key parameter affecting the overall performance of the LAW disposal facility. To address these and other issues, accelerated weathering experiments, using the pressurized unsaturated flow (PUF) apparatus, are currently being conducted to evaluate the corrosion rate of two radioactive glass formulations made with actual Hanford tank waste. The PUF apparatus allows for accelerated weathering experiments to be conducted under hydraulically unsaturated conditions, thereby mimicking the vadose zone environment while allowing the corroding glass to achieve a final reaction state. The basic test apparatus consists of a column packed with crushed glass, a titanium porous plate, a computer data acquisition and control system, a fluid pump, and electronic sensors. Results from the computer monitored sensors suggest that both glasses have a moderate corrosion rate consistent with rates measured for non-radioactive LAW glass formulations previously tested. Normalized release rates for (super 99) Tc and (super 238) U show congruent release behavior with B, indicating little or no incorporation into alteration phases. In contrast, static experiments with several LAW glasses show significant incorporation of (super 99) Tc into alteration phases, principally zeolites. The discrepancy may be due to the limited mass of alteration phases (or different types) that have formed in the PUF tests to date. JF - Abstracts with Programs - Geological Society of America AU - Pierce, E M AU - McGrail, B Pete AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 451 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - volcanic rocks KW - glasses KW - isotopes KW - igneous rocks KW - data acquisition KW - data processing KW - unsaturated zone KW - ground water KW - radioactive isotopes KW - movement KW - chemical composition KW - glass materials KW - geochemistry KW - soils KW - corrosion KW - technetium KW - experimental studies KW - Washington KW - pollution KW - Hanford Site KW - Tc-99 KW - weathering KW - models KW - metals KW - uranium KW - U-238 KW - low-level waste KW - actinides KW - instruments KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51767375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Accelerated+weathering+experiments+of+two+low-activity+waste+glasses+using+the+pressurized+unsaturated+flow+%28PUF%29+apparatus&rft.au=Pierce%2C+E+M%3BMcGrail%2C+B+Pete%3BAnonymous&rft.aulast=Pierce&rft.aufirst=E&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=451&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; chemical composition; corrosion; data acquisition; data processing; experimental studies; geochemistry; glass materials; glasses; ground water; Hanford Site; igneous rocks; instruments; isotopes; low-level waste; metals; models; movement; pollution; radioactive isotopes; soils; Tc-99; technetium; U-238; United States; unsaturated zone; uranium; volcanic rocks; Washington; weathering ER - TY - JOUR T1 - Evaluating potential loss of existing monitoring wells at Hanford using a first order analysis of uncertainty AN - 51767324; 2005-004155 AB - During defense material production activities at the Hanford site in southeastern Washington State, large volumes of wastewater were discharged to waste facilities from 1943-1987. These subsurface discharges resulted in large water table changes and created significant groundwater mounds (in excess of 20 m) under waste management facilities in the central part of the site. Since the mission at the Hanford Site changed from weapons production to environmental restoration in 1988, the decline in wastewater discharges has caused the groundwater mounds to dissipate. Monitoring the approximately 700 wells at the Hanford Site has become increasingly difficult in recent years due to a falling water table that is causing wells to go dry. Using the first order analysis in UCODE and approximately 76,000 historical observations of head, an initial implementation of the Hanford Site uncertainty methodology investigates which of the 700 monitoring wells are likely to go dry between now and 2050, and compares the success of model predictions with monitoring well data through the year 2003. Model predictions are compared to approximately 12,700 observations of head from 1997-2003. This analysis included a comparison of simulated head as well as the confidence and prediction intervals bracketing the central value. Results demonstrated that confidence and prediction intervals are critical to the successful prediction of a dry well status and that the uncertainty methodology can be used to assist in the development of a long-term strategy for their replacement. Pacific Northwest National Laboratory is operated for the U. S. Department of Energy under Contract DE-AC06-76RL01830. JF - Abstracts with Programs - Geological Society of America AU - Freedman, Vicky L AU - Cole, Charles R AU - Waichler, Scott R AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 450 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Washington KW - monitoring KW - waste water KW - pollutants KW - prediction KW - pollution KW - Hanford Site KW - environmental analysis KW - ground water KW - waste management KW - boreholes KW - risk assessment KW - waste disposal KW - water wells KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51767324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Evaluating+potential+loss+of+existing+monitoring+wells+at+Hanford+using+a+first+order+analysis+of+uncertainty&rft.au=Freedman%2C+Vicky+L%3BCole%2C+Charles+R%3BWaichler%2C+Scott+R%3BAnonymous&rft.aulast=Freedman&rft.aufirst=Vicky&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=450&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - boreholes; environmental analysis; ground water; Hanford Site; monitoring; pollutants; pollution; prediction; risk assessment; United States; Washington; waste disposal; waste management; waste water; water wells ER - TY - JOUR T1 - Cosmogenic burial dating and magnetostratigraphy of early and mid-Pleistocene Missoula flood sediments, Hanford, WA AN - 51767284; 2004-085593 AB - Previous magnetostratigraphic studies (Bjornstad et al, 2001; Pluhar, 2003) indicate that Pleistocene cataclysmic flood deposits of the Hanford DOE site record events as old at 1.1 Ma. These, and additional new magnetostratigraphic data presented here, derive from drill cores penetrating the Cold Creek flood bar in the Pasco Basin, a depositional sink for much of the material scoured from the Channeled Scabland during Missoula Floods and other similar events. The eastern part of the Cold Creek bar records a magnetostratigraphy characterized by reversed polarity at the base with normal polarity above and reversed polarity on top. We hypothesize that the normal zone is the Jaramillo subchron (0.99-1.07 Ma), or less likely, the Olduvai subchron (1.77-1.95 Ma). We test these possibilities by cosmogenic burial dating (Granger and Musikar, 2001), using the differential radioactive decay of (super 26) Al and (super 10) Be. We sampled 2 paleosols from drill cores of eastern Cold Creek bar as well as 14 kyr Missoula Flood sediments from Badger Coulee for cosmogenic burial dating. We chose the paleosols to increase the likelihood that sufficient cosmogenic nuclides would have accumulated in the samples prior to burial to allow application of this technique. We analyzed the 14 kyr sample to provide an estimate of the inherited cosmogenic nuclide ratio. Measurable inherited concentrations in the same proportion as that produced at the surface would indicate that burial dating could be applied throughout the stratigraphy. If not, then only the paleosols should be dated by this technique. Initial results suggest that sufficient cosmogenic nuclides concentrations are present in these sediments to make burial dating feasible. JF - Abstracts with Programs - Geological Society of America AU - Pluhar, Christopher J AU - Stock, Greg AU - Finkel, Robert C AU - Anderson, Robert S AU - Coe, Robert S AU - Reidel, Stephen P AU - Bjornstad, Bruce N AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 217 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - relative age KW - Cold Creek KW - geologic hazards KW - isotopes KW - lakes KW - cosmogenic elements KW - magnetostratigraphy KW - cores KW - burial KW - Cenozoic KW - geochronology KW - dates KW - sediments KW - Pasco Basin KW - floods KW - drilling KW - geochemistry KW - buried features KW - glacial lakes KW - Washington KW - Grand Coulee Dam KW - Quaternary KW - Lake Missoula KW - Hanford Site KW - glacial features KW - Pleistocene KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51767284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Cosmogenic+burial+dating+and+magnetostratigraphy+of+early+and+mid-Pleistocene+Missoula+flood+sediments%2C+Hanford%2C+WA&rft.au=Pluhar%2C+Christopher+J%3BStock%2C+Greg%3BFinkel%2C+Robert+C%3BAnderson%2C+Robert+S%3BCoe%2C+Robert+S%3BReidel%2C+Stephen+P%3BBjornstad%2C+Bruce+N%3BAnonymous&rft.aulast=Pluhar&rft.aufirst=Christopher&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - burial; buried features; Cenozoic; Cold Creek; cores; cosmogenic elements; dates; drilling; floods; geochemistry; geochronology; geologic hazards; glacial features; glacial lakes; Grand Coulee Dam; Hanford Site; isotopes; Lake Missoula; lakes; magnetostratigraphy; Pasco Basin; Pleistocene; Quaternary; relative age; sediments; United States; Washington ER - TY - JOUR T1 - A groundwater quality assessment at single-shell tank farms at the DOE Hanford Site AN - 51766711; 2005-004157 AB - Scientists from the Pacific Northwest National Laboratory have conducted an assessment of the groundwater quality under three buried past-practice waste storage tank farms at the DOE Hanford Site in eastern Washington. The case history presented in this paper covers current findings of the investigation, discussing problems unique to a past-practice radioactive storage facility. Innovative technologies have been deployed to unravel a complicated picture of groundwater contamination. The dangerous waste management unit, comprised of the three tank farms, is regulated under the Resource Conservation and Recovery Act interim-status regulations (40 CFR 265, Subpart F) and Washington's Hazardous Waste Management Act (HWMA, RCW 70.105). The unit was placed in assessment groundwater monitoring in 1996 when elevated conductivity was observed in a downgradient monitoring well. The purpose of the assessment was to determine if hazardous waste associated with the buried storage facilities had impacted groundwater quality. The subsurface situation at this site is complicated by several factors. For example, the tank farms are surrounded by disposal facilities where waste of a similar composition was disposed directly to the soil column during the same time period the tanks were in active use. Thus it is difficult to track groundwater contamination back to a specific tank source. In addition the water table is essentially flat, caused by a highly transmissive, unconfined aquifer. Consequently conventional methods to determine flow direction based on water levels are not useful at this site. Furthermore the local flow direction has been artificially changed over time due to large discharges of liquid waste causing water table to rise and diverted the groundwater from its natural direction. However, with the use of innovative technologies along with standard methods, it has been possible to determine the source for the groundwater contamination observed since the waste management unit was placed in assessment in the mid-1990s. Recent data evaluation studies center on pattern matching of trend plots and chemical fingerprinting using the ratio of nitrate to technetium-99 found in the groundwater. Results of both studies are presented and discussed. JF - Abstracts with Programs - Geological Society of America AU - Narbutovskih, Susan M AU - Schalla, Ronald AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 451 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - soils KW - water quality KW - Washington KW - monitoring KW - geologic hazards KW - isotopes KW - waste water KW - pollution KW - Hanford Site KW - environmental analysis KW - drinking water KW - ground water KW - aquifers KW - radioactive isotopes KW - movement KW - risk assessment KW - hydraulic conductivity KW - waste disposal KW - water wells KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51766711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+groundwater+quality+assessment+at+single-shell+tank+farms+at+the+DOE+Hanford+Site&rft.au=Narbutovskih%2C+Susan+M%3BSchalla%2C+Ronald%3BAnonymous&rft.aulast=Narbutovskih&rft.aufirst=Susan&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=451&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2005-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; drinking water; environmental analysis; geologic hazards; ground water; Hanford Site; hydraulic conductivity; isotopes; monitoring; movement; pollution; radioactive isotopes; risk assessment; soils; United States; Washington; waste disposal; waste water; water quality; water wells ER - TY - JOUR T1 - Erratic behavior on Rattlesnake Mountain, Hanford Reach National Monument, south-central Washington AN - 51764624; 2004-085597 AB - Ice-rafted debris accumulated in slackwater areas up to an elevation of 1200 ft within the Pasco Basin during repeated Pleistocene cataclysmic floods. Floodwaters backed up behind a hydraulic constriction at Wallula Gap, forming temporary Lake Lewis and depositing ice-rafted erratics and bergmounds along the gently sloping flanks of Rattlesnake Mountain (RM). Ice-rafted debris is of three types: 1) isolated erratics, 2) erratic clusters, and 3) bergmounds. Bergmounds consist of accumulations of erratics, which display some topographic relief, usually in the form of low conical-shaped mounds. A study of the ice-rafted debris is being performed in a long-protected, sparsely vegetated, 17 mi2 area on the NE flank of RM, now part of the Hanford Reach National Monument. Locations of erratics with >1 ft2 area (planview) and bergmounds are being recorded using a hand-held GPS. Additional information is being gathered on: 1) elevation, 2) lithology, 3) size, 4) roundness, 5) shape, and 6) surface characteristics of erratics. Greater than 95% consist of rock types other than indigenous basalt; >75% being of granitic composition. Other lithologies, in order of decreasing abundance, are diorite, quartzite, basalt, schist, gneiss, and argillite. Most erratics are either subrounded or rounded, followed by subangular; angular clasts are least common. The surfaces of most erratics are unweathered to moderately weathered. Approximately 30% of erratics, perhaps derived from older pre-Wisconsin floods, are strongly weathered. The distribution of erratics is non-uniform and their overall size and frequency decreases with elevation. Decreases in the number of erratics with elevation are attributed to a greater number of less-than-maximum floods. Decreases in size may be due to either: 1) larger floods producing smaller icebergs, or 2) large icebergs, capable of rafting more and larger debris, becoming grounded well away from the ancient lakeshores. Since bergmounds are generally absent above 1000 ft, we prefer the later explanation. Erratics appear to concentrate along the SE sides of a series of NE-trending gullies within the study area. Variable flow velocities across this uneven surface may have created eddies, forcing icebergs to collect in the deeper and quieter waters along the back sides of these gullies. JF - Abstracts with Programs - Geological Society of America AU - Bjornstad, Bruce N AU - Jennett, Elysia M AU - Gaston, Jenna AU - Kleinknecht, Gary AU - Anonymous Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 217 PB - Geological Society of America (GSA), Boulder, CO VL - 35 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Global Positioning System KW - geologic hazards KW - erosion KW - lakes KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - national monuments KW - mineral composition KW - glacial environment KW - sediments KW - Pasco Basin KW - floods KW - Hanford Reach National Monument KW - glacial lakes KW - Washington KW - Quaternary KW - sedimentation KW - glacial features KW - public lands KW - Wallula Gap KW - Pleistocene KW - petrography KW - geomorphology KW - Rattlesnake Mountain KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51764624?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Erratic+behavior+on+Rattlesnake+Mountain%2C+Hanford+Reach+National+Monument%2C+south-central+Washington&rft.au=Bjornstad%2C+Bruce+N%3BJennett%2C+Elysia+M%3BGaston%2C+Jenna%3BKleinknecht%2C+Gary%3BAnonymous&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2003-11-01&rft.volume=35&rft.issue=6&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2003 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; erosion; floods; geologic hazards; geomorphology; glacial environment; glacial features; glacial lakes; Global Positioning System; Hanford Reach National Monument; lakes; mineral composition; national monuments; Pasco Basin; petrography; Pleistocene; public lands; Quaternary; Rattlesnake Mountain; sedimentation; sediments; United States; upper Pleistocene; Wallula Gap; Washington; Wisconsinan ER - TY - JOUR T1 - A modified vadose zone fluxmeter with solution collection capability AN - 51156099; 2004-026285 AB - To assess contaminant fluxes in the vadose zone water flux and solute concentrations must be known but they are seldom measured simultaneously at the same location. A water fluxmeter (WFM) with divergence control was modified to measure solute concentrations by adding a funnel and collection vial to the bottom of the meter. Laboratory experiments using coarse and fine sands showed that measured solute concentrations and known water fluxes can be combined to provide estimates of solute flux. Water containing a NO-3 tracer was applied at a rate of 1.97 X 10-8 m s-1 (621 mm yr-1), and water flux was simultaneously measured along with NO-3 concentrations in the outflow water. The general agreement in fitted and measured pore-water velocities suggests that the breakthrough curves of NO-3 measured using the drainage through the WFM can be used to estimate the pore-water velocity of the soil. Solute travel-time through the 60-cm-long wick was <10% of the travel time through the sands and could be neglected. Flow divergence was examined by measuring the soil water content and pressure head at different positions and by measuring the water flux passing through and around the WFM. Divergence was controlled by a 15-cm-high barrier such that more than 80% of the flow passed through the fluxmeter in both soils. Results show that the modified SFM can provide a convenient method for long-term monitoring of contaminant flux. JF - Vadose Zone Journal AU - Gee, Glendon W AU - Zhang, Z Fred AU - Ward, Andy L A2 - Ferre, Ty P. A. A2 - Kluitenberg, Gerard J. Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 627 EP - 632 PB - Soil Science Society of America, Madison, WI VL - 2 IS - 4 KW - United States KW - solute transport KW - water quality KW - geophysical surveys KW - moisture KW - unsaturated zone KW - solution KW - North Caisson KW - laboratory studies KW - movement KW - sediments KW - applications KW - water fluxmeters KW - breakthrough curves KW - Benton County Washington KW - nitrate ion KW - lysimeters KW - time domain reflectometry KW - sand KW - experimental studies KW - Washington KW - monitoring KW - clastic sediments KW - geophysical methods KW - electrical methods KW - Richland Washington KW - Hanford Site KW - surveys KW - Columbia Plateau KW - instruments KW - field studies KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51156099?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+modified+vadose+zone+fluxmeter+with+solution+collection+capability&rft.au=Gee%2C+Glendon+W%3BZhang%2C+Z+Fred%3BWard%2C+Andy+L&rft.aulast=Gee&rft.aufirst=Glendon&rft.date=2003-11-01&rft.volume=2&rft.issue=4&rft.spage=627&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 47 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Accessed on February 2, 2004; Includes papers from Special symposium on Physical measurements in the soil-plant-atmosphere system; 1, Advances in measurements at and below the ground surface; a tribute to Clarke Topp, Soil Science Society of America meeting, Nov. 10-14, 2002, Indianapolis, IN N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; Benton County Washington; breakthrough curves; clastic sediments; Columbia Plateau; electrical methods; experimental studies; field studies; geophysical methods; geophysical surveys; Hanford Site; instruments; laboratory studies; lysimeters; moisture; monitoring; movement; nitrate ion; North Caisson; Richland Washington; sand; sediments; solute transport; solution; surveys; time domain reflectometry; United States; unsaturated zone; Washington; water fluxmeters; water quality ER - TY - JOUR T1 - Site 1248 AN - 50497753; 2004-011453 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 75 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - ODP Site 1248 KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - physical properties KW - North Pacific KW - nannofossils KW - Pacific Ocean KW - Pleistocene KW - Ocean Drilling Program KW - microfossils KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50497753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1248&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.107.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_07/chap_07.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 16 N1 - PubXState - TX N1 - Document feature - illus. incl. strat. cols., 13 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1248; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Quaternary; sediments; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.107.2003 ER - TY - JOUR T1 - Leg 204 summary AN - 50497715; 2004-011447 AB - During Leg 204, we cored and logged nine sites on the Oregon continental margin to determine the distribution and concentration of gas hydrates in an accretionary ridge and adjacent slope basin, investigate the mechanisms that transport methane and other gases into the gas hydrate stability zone (GHSZ), and obtain constraints on physical properties of gas hydrates in situ. A three-dimensional seismic survey conducted from 19 June through 3 July 2000 provided images of potential subsurface fluid conduits and indicated the depth of the bottom-simulating reflector (BSR), a commonly used proxy for the base of the GHSZ. After coring at the first site, we acquired logging-while-drilling (LWD) data at all but one site to provide an overview of downhole physical properties prior to coring. The LWD data confirmed the general position of key seismic stratigraphic horizons and yielded an initial estimate of gas hydrate concentration through the proxy of in situ electrical resistivity. These records proved to be of great value in planning subsequent coring. We also tested the use of infrared (IR) thermal imaging of cores as a new and effective tool to identify gas hydrates as rapidly as possible after core retrieval. The thermal images were used to estimate the distribution and texture of hydrate within the cores. Geochemical analyses of interstitial waters and of headspace and void gases provided additional information on the distribution and concentration of gas hydrate within the GHSZ, the origin and pathway of fluids into and through the GHSZ, and the rates at which the process of gas hydrate formation is occurring. Biostratigraphic and lithostratigraphic descriptions of cores, measurement of physical properties, in situ pressure core sampling, and thermal measurements complement the data set, providing ground-truth tests of inferred physical and sedimentological properties. JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 75 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - geophysical surveys KW - gas hydrates KW - aliphatic hydrocarbons KW - Cascadia Basin KW - cores KW - Oregon KW - marine sediments KW - sediments KW - thickness KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - high-resolution methods KW - continental margin KW - seismic profiles KW - methane KW - biostratigraphy KW - geophysical methods KW - anomalies KW - Hydrate Ridge KW - alkanes KW - seismic methods KW - organic compounds KW - boreholes KW - North Pacific KW - Pacific Ocean KW - hydrocarbons KW - surveys KW - geophysical profiles KW - Ocean Drilling Program KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50497715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Leg+204+summary&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.101.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_01/chap_01.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 65 N1 - PubXState - TX N1 - Document feature - illus. incl. sects., 4 tables, sketch maps N1 - SuppNotes - Also available on CD-ROM in PDF format and in the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; anomalies; biostratigraphy; boreholes; Cascadia Basin; continental margin; cores; East Pacific; gas hydrates; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; high-resolution methods; Hydrate Ridge; hydrocarbons; Leg 204; lithostratigraphy; marine sediments; methane; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; Oregon; organic compounds; Pacific Ocean; sediments; seismic methods; seismic profiles; surveys; thickness; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.101.2003 ER - TY - JOUR T1 - Site 1247 AN - 50497196; 2004-011452 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 84 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - Cenozoic KW - Oregon KW - ODP Site 1247 KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - physical properties KW - North Pacific KW - nannofossils KW - Pacific Ocean KW - Pleistocene KW - Ocean Drilling Program KW - microfossils KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50497196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1247&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.106.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_06/chap_06.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. incl. strat. cols., 15 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1247; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Quaternary; sediments; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.106.2003 ER - TY - JOUR T1 - Proceedings of the Ocean Drilling Program, initial reports, drilling gas hydrates on Hydrate Ridge, Cascadia continental margin; covering Leg 204 of the cruises of the drilling vessel JOIDES Resolution Victoria, British Columbia, Canada, to Victoria, British Columbia, Canada; sites 1244-1252, 7 July-2 September 2002 AN - 50496808; 2004-011446 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 EP - variously paginated PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - East Pacific KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - biostratigraphy KW - geophysical methods KW - Cascadia Basin KW - Hydrate Ridge KW - cores KW - physical properties KW - marine sediments KW - North Pacific KW - Pacific Ocean KW - sediments KW - Ocean Drilling Program KW - ocean floors KW - Leg 204 KW - geochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50496808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Proceedings+of+the+Ocean+Drilling+Program%2C+initial+reports%2C+drilling+gas+hydrates+on+Hydrate+Ridge%2C+Cascadia+continental+margin%3B+covering+Leg+204+of+the+cruises+of+the+drilling+vessel+JOIDES+Resolution+Victoria%2C+British+Columbia%2C+Canada%2C+to+Victoria%2C+British+Columbia%2C+Canada%3B+sites+1244-1252%2C+7+July-2+September+2002&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+initial+reports%2C+drilling+gas+hydrates+on+Hydrate+Ridge%2C+Cascadia+continental+margin%3B+covering+Leg+204+of+the+cruises+of+the+drilling+vessel+JOIDES+Resolution+Victoria%2C+British+Columbia%2C+Canada%2C+to+Victoria%2C+British+Columbia%2C+Canada%3B+sites+1244-1252%2C+7+July-2+September+2002&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/204TOC.HTM LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - TX N1 - SuppNotes - Individual chapters are cited separately; chapters 2-11, core descriptions, and supplementary data are available only on the included CD-ROMs and on the Web; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - biostratigraphy; Cascadia Basin; cores; East Pacific; gas hydrates; geochemistry; geophysical methods; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; Pacific Ocean; physical properties; sediments DO - http://dx.doi.org/10.2973/odp.proc.ir.204.2003 ER - TY - JOUR T1 - Site 1252 AN - 50496620; 2004-011457 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 62 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - Tertiary KW - physical properties KW - North Pacific KW - Neogene KW - nannofossils KW - Pacific Ocean KW - Pliocene KW - Pleistocene KW - Ocean Drilling Program KW - ODP Site 1252 KW - microfossils KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50496620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1252&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.111.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_11/chap_11.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. incl. strat. cols., 10 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; Neogene; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1252; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Pliocene; Quaternary; sediments; Tertiary; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.111.2003 ER - TY - JOUR T1 - Site 1246 AN - 50496569; 2004-011451 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 67 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - ODP Site 1246 KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - physical properties KW - North Pacific KW - nannofossils KW - Pacific Ocean KW - Pleistocene KW - Ocean Drilling Program KW - microfossils KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50496569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1246&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.105.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_05/chap_05.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 9 N1 - PubXState - TX N1 - Document feature - illus. incl. strat. cols., 14 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1246; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Quaternary; sediments; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.105.2003 ER - TY - JOUR T1 - Site 1249 AN - 50495970; 2004-011454 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 98 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - ODP Site 1249 KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - physical properties KW - North Pacific KW - nannofossils KW - Pacific Ocean KW - Pleistocene KW - Ocean Drilling Program KW - microfossils KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50495970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1249&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.108.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_08/chap_08.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. incl. strat. col., 18 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1249; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Quaternary; sediments; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.108.2003 ER - TY - JOUR T1 - Site 1245 AN - 50495909; 2004-011450 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 131 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - ODP Site 1245 KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - physical properties KW - North Pacific KW - nannofossils KW - Pacific Ocean KW - Pleistocene KW - Ocean Drilling Program KW - microfossils KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50495909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1245&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.104.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_04/chap_04.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. incl. strat. cols., 23 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1245; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Quaternary; sediments; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.104.2003 ER - TY - JOUR T1 - Site 1251 AN - 50494956; 2004-011456 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 119 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - Tertiary KW - physical properties KW - North Pacific KW - Neogene KW - nannofossils KW - Pacific Ocean KW - Pliocene KW - Pleistocene KW - Ocean Drilling Program KW - ODP Site 1251 KW - microfossils KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50494956?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1251&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.110.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_10/chap_10.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 17 N1 - PubXState - TX N1 - Document feature - illus. incl. sect., strat. cols., 20 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; Neogene; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1251; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Pliocene; Quaternary; sediments; Tertiary; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.110.2003 ER - TY - JOUR T1 - Site 1250 AN - 50494886; 2004-011455 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 100 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - Holocene KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - depositional environment KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - physical properties KW - North Pacific KW - nannofossils KW - Pacific Ocean KW - Pleistocene KW - Ocean Drilling Program KW - microfossils KW - ODP Site 1250 KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50494886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1250&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.109.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_09/chap_09.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. incl. strat. cols., 19 tables, sketch map N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; depositional environment; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Holocene; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1250; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Quaternary; sediments; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.109.2003 ER - TY - JOUR T1 - Explanatory notes AN - 50494522; 2004-011448 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 102 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - sea water KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - well logs KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - hydrochemistry KW - Tertiary KW - physical properties KW - North Pacific KW - Neogene KW - nannofossils KW - Pacific Ocean KW - Ocean Drilling Program KW - microfossils KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50494522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Explanatory+notes&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.102.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_02/chap_02.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 101 N1 - PubXState - TX N1 - Document feature - illus. incl. 8 tables, strat. cols. N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Hydrate Ridge; hydrochemistry; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; Neogene; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; Oregon; Pacific Ocean; physical properties; Plantae; sea water; sediments; Tertiary; United States; well logs DO - http://dx.doi.org/10.2973/odp.proc.ir.204.102.2003 ER - TY - JOUR T1 - Site 1244 AN - 50492945; 2004-011449 JF - Proceedings of the Ocean Drilling Program, Part A: Initial Reports AU - Trehu, Anne M AU - Bohrmann, Gerhard AU - Rack, Frank R AU - Torres, Marta E AU - Bangs, Nathan L AU - Barr, Samantha R AU - Borowski, Walter S AU - Claypool, George E AU - Collett, Timothy S AU - Delwiche, Mark E AU - Dickens, Gerald R AU - Goldberg, David S AU - Gracia, Eulalia AU - Guerin, Gilles AU - Holland, Melanie AU - Johnson, Joel E AU - Lee, Young-Joo AU - Liu, Char-Shine AU - Long, Philip E AU - Milkov, Alexei V (Aleksei V) AU - Riedel, Michael AU - Schultheiss, Peter AU - Su, Xin AU - Teichert, Barbara AU - Tomaru, Hitoshi AU - Vanneste, Maarten AU - Watanabe, Mahito AU - Weinberger, Jill L A2 - Chapman, Mary Y1 - 2003/11// PY - 2003 DA - November 2003 SP - 132 PB - Texas A&M University, Ocean Drilling Program, College Station, TX VL - 204 KW - United States KW - lithostratigraphy KW - Northeast Pacific KW - gas hydrates KW - Cascadia Basin KW - algae KW - cores KW - Cenozoic KW - Oregon KW - marine sediments KW - diatoms KW - sediments KW - ODP Site 1244 KW - ocean floors KW - Leg 204 KW - geochemistry KW - East Pacific KW - Plantae KW - continental margin KW - Quaternary KW - biostratigraphy KW - geomicrobiology KW - geophysical methods KW - Hydrate Ridge KW - Tertiary KW - physical properties KW - North Pacific KW - Neogene KW - nannofossils KW - Pacific Ocean KW - Pliocene KW - Pleistocene KW - Ocean Drilling Program KW - microfossils KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50492945?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.atitle=Site+1244&rft.au=Trehu%2C+Anne+M%3BBohrmann%2C+Gerhard%3BRack%2C+Frank+R%3BTorres%2C+Marta+E%3BBangs%2C+Nathan+L%3BBarr%2C+Samantha+R%3BBorowski%2C+Walter+S%3BClaypool%2C+George+E%3BCollett%2C+Timothy+S%3BDelwiche%2C+Mark+E%3BDickens%2C+Gerald+R%3BGoldberg%2C+David+S%3BGracia%2C+Eulalia%3BGuerin%2C+Gilles%3BHolland%2C+Melanie%3BJohnson%2C+Joel+E%3BLee%2C+Young-Joo%3BLiu%2C+Char-Shine%3BLong%2C+Philip+E%3BMilkov%2C+Alexei+V+%28Aleksei+V%29%3BRiedel%2C+Michael%3BSchultheiss%2C+Peter%3BSu%2C+Xin%3BTeichert%2C+Barbara%3BTomaru%2C+Hitoshi%3BVanneste%2C+Maarten%3BWatanabe%2C+Mahito%3BWeinberger%2C+Jill+L&rft.aulast=Trehu&rft.aufirst=Anne&rft.date=2003-11-01&rft.volume=204&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Ocean+Drilling+Program%2C+Part+A%3A+Initial+Reports&rft.issn=0884-5883&rft_id=info:doi/10.2973%2Fodp.proc.ir.204.103.2003 L2 - http://www-odp.tamu.edu/publications/204_IR/chap_03/chap_03.htm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 45 N1 - PubXState - TX N1 - Document feature - illus. incl. 22 tables, strat. col. N1 - SuppNotes - Available only on CD-ROM in PDF format and on the Web in PDF or HTML; CD-ROM format, ISSN 1096-2522; WWW format, ISSN 1096-2158 N1 - Last updated - 2012-06-07 N1 - CODEN - IDSDA6 N1 - SubjectsTermNotLitGenreText - algae; biostratigraphy; Cascadia Basin; Cenozoic; continental margin; cores; diatoms; East Pacific; gas hydrates; geochemistry; geomicrobiology; geophysical methods; Hydrate Ridge; Leg 204; lithostratigraphy; marine sediments; microfossils; nannofossils; Neogene; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1244; Oregon; Pacific Ocean; physical properties; Plantae; Pleistocene; Pliocene; Quaternary; sediments; Tertiary; United States DO - http://dx.doi.org/10.2973/odp.proc.ir.204.103.2003 ER - TY - JOUR T1 - Potential docking sites and positions of hydrogen in high-pressure silicates AN - 51911094; 2004-001414 AB - A method based on an analysis of the Laplacian of the electron density distribution is used to locate positions of nonbonding electron-pairs and favorable docking sites for hydrogen in high-pressure silicates, including stishovite, akimotoite, wadsleyite, ringwoodite, MgSiO (sub 3) , and CaSiO (sub 3) perovskite. In stishovite, model hydrogen positions (h) are located off the shared O...O edge of the octahedra with the Oh vector oriented perpendicular to [001]. In akimotoite, two model positions for hydrogen are found, one along an edge of the MgO (sub 6) octahedron with an Oh vector aligned close to [001] and the other within the face of the MgO (sub 6) octahedra, with Oh vectors oriented perpendicular to [001]. Geometric and electrostatic considerations suggest that both of these sites would require vacant Mg sites. In wadsleyite, potential sites for protonation exist for all O atoms. Hydrogen bonded to O1 resides in a cage-like site with the Oh dipole oriented parallel to [001]. Two symmetrically equivalent sites for hydrogen exist at O2 in a second cage-like structure with Oh vectors aligned approximately along [100]. The calculations also identify potential sites for hydrogen at O3 and O4, but suggest that these could only be occupied by hydrogen if vacancies exist at adjacent Mg sites. Model hydrogen positions in ringwoodite are predicted along O...O edges of the MgO (sub 6) octahedron, and, if occupied, would require vacancies at adjacent Mg sites. MgSiO (sub 3) perovskite is distinguished by having only one potential site for hydrogen. The Oh vector lies within the (110) plane and geometric and electrostatic considerations suggest that a vacancy is required at the Mg site if this site is protonated. No localized sites for hydrogen are found in CaSiO (sub 3) perovskite. We suggest that non-bonded electron pairs associated with oxide anions involved in octahedral frameworks with tilt angles of less than 180 degrees provide more favorable docking sites for protons than those involved in wider angles. The results from the electron density calculations show very good agreement with available crystallographic and spectroscopic data and demonstrate that the strategy used in this study can be useful in locating protons in Earth materials. JF - American Mineralogist AU - Ross, Nancy L AU - Gibbs, G V AU - Rosso, Kevin M AU - Welch, Mark D AU - Lager, George A Y1 - 2003/10// PY - 2003 DA - October 2003 SP - 1452 EP - 1459 PB - Mineralogical Society of America, Washington, DC VL - 88 IS - 10 SN - 0003-004X, 0003-004X KW - silicates KW - pressure KW - silica minerals KW - perovskite KW - olivine group KW - stishovite KW - perovskite structure KW - high pressure KW - akimotoite KW - nesosilicates KW - ringwoodite KW - hydrogen KW - wadsleyite KW - orthosilicates KW - oxides KW - framework silicates KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51911094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Potential+docking+sites+and+positions+of+hydrogen+in+high-pressure+silicates&rft.au=Ross%2C+Nancy+L%3BGibbs%2C+G+V%3BRosso%2C+Kevin+M%3BWelch%2C+Mark+D%3BLager%2C+George+A&rft.aulast=Ross&rft.aufirst=Nancy&rft.date=2003-10-01&rft.volume=88&rft.issue=10&rft.spage=1452&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Conference title - International Mineralogical Association meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - akimotoite; framework silicates; high pressure; hydrogen; nesosilicates; olivine group; orthosilicates; oxides; perovskite; perovskite structure; pressure; ringwoodite; silica minerals; silicates; stishovite; wadsleyite ER - TY - JOUR T1 - Imaging the heterogeneity of mineral surface reactivity using Ag(I) and synchrotron X-ray microscopy AN - 51598894; 2006-035768 JF - Physics and Chemistry of Minerals AU - Amonette, Jim E AU - Heald, S M AU - Russell, C K Y1 - 2003/10// PY - 2003 DA - October 2003 SP - 559 EP - 569 PB - Springer-Verlag, Berlin-New York VL - 30 IS - 9 SN - 0342-1791, 0342-1791 KW - silicates KW - Fountain Formation KW - granites KW - microstructure KW - Atlantic County New Jersey KW - clinoamphibole KW - reactivity KW - sedimentary rocks KW - plutonic rocks KW - upper Paleozoic KW - mica group KW - hematite KW - framework silicates KW - reduction KW - Atlantic City New Jersey KW - chain silicates KW - sulfate ion KW - Paleozoic KW - X-ray spectra KW - conglomerate KW - Ontario KW - New York KW - heterogeneous materials KW - Canada KW - microscope methods KW - biotite KW - Faraday Township Ontario KW - New Jersey KW - crystal chemistry KW - feldspar group KW - clastic rocks KW - United States KW - Clinton New York KW - igneous rocks KW - thin sections KW - Washington Pass KW - arfvedsonite KW - synchrotron radiation KW - chemical reactions KW - quantitative analysis KW - oxides KW - spectra KW - quartz-pebble conglomerate KW - chemical analysis KW - Washington KW - Oneida County New York KW - silver KW - oxidation KW - amphibole group KW - sample preparation KW - Hudson County New Jersey KW - metals KW - bacteria KW - sheet silicates KW - Eastern Canada KW - diabase KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51598894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Imaging+the+heterogeneity+of+mineral+surface+reactivity+using+Ag%28I%29+and+synchrotron+X-ray+microscopy&rft.au=Amonette%2C+Jim+E%3BHeald%2C+S+M%3BRussell%2C+C+K&rft.aulast=Amonette&rft.aufirst=Jim&rft.date=2003-10-01&rft.volume=30&rft.issue=9&rft.spage=559&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-003-0350-2 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-14 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - amphibole group; arfvedsonite; Atlantic City New Jersey; Atlantic County New Jersey; bacteria; biotite; Canada; chain silicates; chemical analysis; chemical reactions; clastic rocks; clinoamphibole; Clinton New York; conglomerate; crystal chemistry; diabase; Eastern Canada; Faraday Township Ontario; feldspar group; Fountain Formation; framework silicates; granites; hematite; heterogeneous materials; Hudson County New Jersey; igneous rocks; metals; mica group; microscope methods; microstructure; New Jersey; New York; Oneida County New York; Ontario; oxidation; oxides; Paleozoic; plutonic rocks; quantitative analysis; quartz-pebble conglomerate; reactivity; reduction; sample preparation; sedimentary rocks; sheet silicates; silicates; silver; spectra; sulfate ion; synchrotron radiation; thin sections; United States; upper Paleozoic; Washington; Washington Pass; X-ray spectra DO - http://dx.doi.org/10.1007/s00269-003-0350-2 ER - TY - JOUR T1 - Hanford Site; environmental report for calendar year 2002 AN - 51511211; 2007-004962 JF - PNNL (Pacific Northwest National Laboratory) A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2003/09// PY - 2003 DA - September 2003 EP - variously paginated PB - Pacific Northwest National Laboratory, Richland, WA KW - United States KW - hazardous waste KW - Resource Conservation and Recovery Act KW - radioactivity KW - soil vapor extraction KW - regulations KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - decontamination KW - sediments KW - ecology KW - pump-and-treat KW - soils KW - protection KW - toxic materials KW - Washington KW - monitoring KW - Superfund KW - pollutants KW - Columbia River KW - effluents KW - surface water KW - legislation KW - pollution KW - Hanford Site KW - biota KW - models KW - risk assessment KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51511211?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2003-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+Site%3B+environmental+report+for+calendar+year+2002&rft.title=Hanford+Site%3B+environmental+report+for+calendar+year+2002&rft.issn=&rft_id=info:doi/ L2 - http://www.pnl.gov/publications/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Availability - National Technical Information Service, Springfield, VA, United States N1 - PubXState - WA N1 - Document feature - illus. incl. 89 tables, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - #04694 N1 - SubjectsTermNotLitGenreText - biota; Columbia River; decontamination; ecology; effluents; environmental analysis; ground water; Hanford Site; hazardous waste; legislation; models; monitoring; pollutants; pollution; protection; pump-and-treat; radioactive waste; radioactivity; regulations; remediation; Resource Conservation and Recovery Act; risk assessment; sediments; soil vapor extraction; soils; Superfund; surface water; toxic materials; United States; Washington; waste disposal; waste management ER - TY - JOUR T1 - Hanford Site environmental surveillance data report for calendar year 2002 AN - 50526925; 2009-015838 JF - PNNL (Pacific Northwest National Laboratory) AU - Bisping, L E Y1 - 2003/09// PY - 2003 DA - September 2003 SP - 215 PB - Pacific Northwest National Laboratory, Richland, WA KW - United States KW - soils KW - Washington KW - pollutants KW - Columbia River KW - surface water KW - waste disposal sites KW - pollution KW - Hanford Site KW - vegetation KW - environmental analysis KW - drinking water KW - samples KW - biota KW - radioactive waste KW - environmental management KW - sampling KW - soil pollution KW - sediments KW - air KW - waste disposal KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50526925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Bisping%2C+L+E&rft.aulast=Bisping&rft.aufirst=L&rft.date=2003-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+Site+environmental+surveillance+data+report+for+calendar+year+2002&rft.title=Hanford+Site+environmental+surveillance+data+report+for+calendar+year+2002&rft.issn=&rft_id=info:doi/ L2 - http://www.pnl.gov/publications/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Availability - National Technical Information Service, Springfield, VA, United States N1 - PubXState - WA N1 - Document feature - 18 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #04694 N1 - SubjectsTermNotLitGenreText - air; biota; Columbia River; drinking water; environmental analysis; environmental management; Hanford Site; pollutants; pollution; radioactive waste; samples; sampling; sediments; soil pollution; soils; surface water; United States; vegetation; Washington; waste disposal; waste disposal sites; water pollution ER - TY - JOUR T1 - The Effect of Lake Temperatures and Emissions on Ozone Exposure in the Western Great Lakes Region AN - 17293740; 5713054 AB - A meteorological-chemical model with a 12-km horizontal grid spacing was used to simulate the evolution of ozone over the western Great Lakes region during a 30-day period in the summer of 1999. Lake temperatures in the model were based on analyses derived from daily satellite measurements. The model performance was evaluated using operational surface and upper-air meteorological measurements and surface chemical measurements. Reasonable agreement between the simulations and observations was obtained. The bias (predicted - observed) over the simulation period was only -1.3 ppb for the peak ozone mixing ratio during the day and 5.5 ppb for the minimum ozone mixing ratio at night. High ozone production rates were produced over the surface of the lakes as a result of stable atmospheric conditions that trapped ozone precursors within a shallow layer during the day. In one location, an increase of 200 ppb of ozone over a 9-h period was produced by chemical production that was offset by losses of 110 ppb through vertical mixing, horizontal transport, and deposition. The predicted ozone was also sensitive to lake temperatures. A simulation with climatological lake temperatures produced ozone mixing ratios over the lakes and around the lake shores that differed from the simulation with observed lake temperatures by as much as 50 ppb, while the differences over land were usually 10 ppb or less. Through a series of sensitivity studies that varied ozone precursor emissions, it was shown that a reduction of 50% in NOx or volatile organic compounds would lower the 60-ppb ozone exposure by up to 50 h month-1 in the remote forest regions over the northern Great Lakes. The implications of these results on future climate change and air quality in the region are discussed. JF - Journal of Applied Meteorology AU - Fast, J D AU - Heilman, W E AD - Pacific Northwest National Laboratory, P.O. Box 999, K9-30, 3200 Q Avenue, Richland, WA 99352, jeromefast@pnl.gov Y1 - 2003/09// PY - 2003 DA - September 2003 SP - 1197 EP - 1217 PB - American Meteorological Society VL - 42 IS - 9 SN - 0894-8763, 0894-8763 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Climatic changes KW - Lake temperatures KW - Mixing KW - Atmosphere KW - Canada, Northern Great Lakes KW - Lakes KW - Exposure KW - Emissions KW - Climatic Changes KW - Meteorology KW - Ozone KW - Temperature effects KW - Temperature KW - Simulation KW - Air-water interface KW - Model Studies KW - Earth atmosphere KW - Lake temperature estimation from satellite radiation measurements KW - North America, Great Lakes KW - Deposition KW - Air-water interactions KW - Ozone over lakes KW - Organic Compounds KW - P 0000:AIR POLLUTION KW - M2 556.551:Water properties in lakes, reservoirs, and ponds (556.551) KW - Q2 09171:Dynamics of lakes and rivers KW - SW 3030:Effects of pollution KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17293740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology&rft.atitle=The+Effect+of+Lake+Temperatures+and+Emissions+on+Ozone+Exposure+in+the+Western+Great+Lakes+Region&rft.au=Fast%2C+J+D%3BHeilman%2C+W+E&rft.aulast=Fast&rft.aufirst=J&rft.date=2003-09-01&rft.volume=42&rft.issue=9&rft.spage=1197&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/10.1175%2F1520-0450%282003%29042%281197%3ATEOLTA%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-12-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Temperature effects; Lakes; Climatic changes; Simulation; Meteorology; Air-water interface; Earth atmosphere; Ozone; Lake temperature estimation from satellite radiation measurements; Lake temperatures; Ozone over lakes; Temperature; Emissions; Air-water interactions; Atmosphere; Exposure; Climatic Changes; Deposition; Organic Compounds; Mixing; Model Studies; North America, Great Lakes; Canada, Northern Great Lakes DO - http://dx.doi.org/10.1175/1520-0450(2003)042(1197:TEOLTA)2.0.CO;2 ER - TY - JOUR T1 - Effect of Coupled Dissolution and Redox Reactions on Cr(VI) sub(aq) Attenuation during Transport in the Sediments under Hyperalkaline Conditions AN - 16160274; 5773899 AB - Aluminum-rich, hyperalkaline (pH > 13.5) and saline high-level nuclear waste (HLW) fluids at elevated temperatures (>50C), that possibly contained as much as 0.41 mol L super(-1) Cr(VI), accidentally leaked to the sediments at the Hanford Site, WA. These extreme conditions promote base-induced dissolution of soil minerals which may affect Cr(VI) sub(aq) mobility. Our objective was to investigate Cr(VI) sub(aq) transport in sediments leached with HLW simulants at 50C, under CO sub(2) and O sub(2) free conditions. Results demonstrated that Cr(VI) sub(aq) fate was closely related to dissolution, and Cr(VI) sub(aq) mass loss was negligible in the first pore volumes but increased significantly thereafter. Similar to dissolution, Cr(VI) sub(aq) attenuation increased with increasing fluid residence time and NaOH concentration but decreased with Al concentrations in the leaching solutions. Aqueous Cr(VI) removal rate half-lives varied from 1.2 to 230 h with the fastest at the highest base concentration, lowest Al concentration, greatest reaction time, and lowest Cr(VI) concentration in the leaching solution. The rate of Cr(VI) removal (normalized to 1 kg of solution) varied from 0.83 x 10 super(-9) (c0.44 x 10 super(-9)) to 9.16 x 10 super(-9) (c1.10 x 10 super(-9)) mol s super(-1). The predominant mechanism responsible for removing Cr(VI) from the aqueous phase appears to be homogeneous Cr(VI) reduction to Cr(III) by Fe(II) released during mineral dissolution. Cr(VI) sub(aq) removal was time-limited probably because it was controlled by the rate of Fe(II) release into the soil solution upon mineral dissolution, which was also a time-limited process, and other processes that may act to lower Fe(II) sub(aq) activity. JF - Environmental Science & Technology AU - Qafoku, N P AU - Ainsworth, C C AU - Szecsody, JE AU - Qafoku, O S AU - Heald, S M AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN: K3-61, Richland, WA 99352, USA, nik.qafoku@pnl.gov Y1 - 2003/08/15/ PY - 2003 DA - 2003 Aug 15 SP - 3640 EP - 3646 VL - 37 IS - 16 SN - 0013-936X, 0013-936X KW - Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Biodegradation KW - Path of Pollutants KW - Alkalinity KW - Sediment Contamination KW - Radioactive Wastes KW - Sediment pollution KW - Redox reactions KW - Leaching KW - Chromium KW - Radioactive wastes KW - Attenuation KW - Fate KW - USA, Washington, Hanford Site KW - Transport KW - Aluminium KW - Aluminum KW - Q5 08503:Characteristics, behavior and fate KW - P 8000:RADIATION KW - SW 3020:Sources and fate of pollution KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16160274?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Effect+of+Coupled+Dissolution+and+Redox+Reactions+on+Cr%28VI%29+sub%28aq%29+Attenuation+during+Transport+in+the+Sediments+under+Hyperalkaline+Conditions&rft.au=Qafoku%2C+N+P%3BAinsworth%2C+C+C%3BSzecsody%2C+JE%3BQafoku%2C+O+S%3BHeald%2C+S+M&rft.aulast=Qafoku&rft.aufirst=N&rft.date=2003-08-15&rft.volume=37&rft.issue=16&rft.spage=3640&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-02-01 N1 - Last updated - 2014-05-05 N1 - SubjectsTermNotLitGenreText - Redox reactions; Sediment pollution; Leaching; Chromium; Alkalinity; Radioactive wastes; Fate; Biodegradation; Aluminum; Radioactive Wastes; Path of Pollutants; Transport; Aluminium; Attenuation; Sediment Contamination; USA, Washington, Hanford Site ER - TY - JOUR T1 - Ab initio determination of edge surface structures for dioctahedral 2:1 phyllosilicates; implications for acid-base reactivity AN - 51914803; 2003-082777 AB - The atomic structure of dioctahedral 2:1 phyllosilicate edge surfaces was calculated using pseudopotential planewave density functional theory. Bulk structures of pyrophyllite and ferripyrophyllite were optimized using periodic boundary conditions, after which crystal chemical methods were used to obtain initial terminations for ideal (110)-and (010)-type edge surfaces. The edge surfaces were protonated using various schemes to neutralize the surface charge, and total minimized energies were compared to identify which schemes are the most energetically favorable. The calculations show that significant surface relaxation should occur on the (110)-type faces, as well as in response to different protonation schemes on both surface types. This result is consistent with atomic force microscopy observations of phyllosilicate dissolution behavior. Bond-valence methods incorporating bond lengths from calculated structures can be used to predict intrinsic acidity constants for surface functional groups on (110)- and (010)-type edge surfaces. However, the occurrence of surface relaxation poses problems for applying current bond-valence methods. An alternative method is proposed that considers bond relaxation, and accounts for the energetics of various protonation schemes on phyllosilicate edges. JF - Clays and Clay Minerals AU - Bickmore, Barry R AU - Rosso, Kevin M AU - Nagy, Kathryn L AU - Cygan, Randall T AU - Tadanier, Christopher J Y1 - 2003/08// PY - 2003 DA - August 2003 SP - 359 EP - 371 PB - Clay Minerals Society, Clarkson, NY VL - 51 IS - 4 SN - 0009-8604, 0009-8604 KW - silicates KW - density KW - solutions KW - clay mineralogy KW - unit cell KW - crystal structure KW - clay minerals KW - chemical reactions KW - sheet silicates KW - valency KW - kinetics KW - geochemistry KW - pH KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51914803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=Ab+initio+determination+of+edge+surface+structures+for+dioctahedral+2%3A1+phyllosilicates%3B+implications+for+acid-base+reactivity&rft.au=Bickmore%2C+Barry+R%3BRosso%2C+Kevin+M%3BNagy%2C+Kathryn+L%3BCygan%2C+Randall+T%3BTadanier%2C+Christopher+J&rft.aulast=Bickmore&rft.aufirst=Barry&rft.date=2003-08-01&rft.volume=51&rft.issue=4&rft.spage=359&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/10.1346%2FCCMN.2003.0510401 L2 - http://www.ingentaconnect.com/content/cms/ccm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 49 N1 - PubXState - NY N1 - Document feature - illus. incl. 6 tables, 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - chemical reactions; clay mineralogy; clay minerals; crystal structure; density; geochemistry; kinetics; pH; sheet silicates; silicates; solutions; unit cell; valency DO - http://dx.doi.org/10.1346/CCMN.2003.0510401 ER - TY - JOUR T1 - Flow and solute transport around injection wells through a single, growing fracture AN - 51874469; 2004-022931 AB - During deep-well injection of liquids, the formation around an injection well is often fractured due to an imbalance between the injection pressure and the minimum horizontal rock stress opposing fracturing. The resulting fractures can grow during injection, which may span over several months to years. Earlier studies reported on solute transport in a single fracture in low permeability fractured media, assuming that transport into the formation perpendicular to the face of the fracture is mediated by diffusion alone. This may be valid for flow under natural gradients through fractured formations of low permeability. In contrast, due to the high rates of injection through a fractured injection well, both advection and dispersion play an important role in the spread of contaminants around a fractured injection well. We present a model for the flow and reactive solute transport profiles around fractured injection wells, through a single, two-winged vertical fracture created by injection at high rates and/or pressures and growing with time. The fracture, of constant height and infinite conductivity, serves as a line source injecting fluids into the formation perpendicular to its face via a uniform leak-off, resulting in an elliptical water flood front confocal with the fracture. Flow and solute transport within the elliptical flow domain is formulated as a planar (two-dimensional) transport problem, described by the advection-dispersion equation in elliptical coordinates including retardation and 1st order radioactive nuclear decay processes. Results indicate that transport at early times depends strongly on location relative to the fracture. Retardation has a more pronounced influence on transport for the cases where advection is significant; whereas 1st order radioactive nuclear decay process is independent of advective velocity. Flow and transport around an injection well with a vertical fracture exhibits important differences from radial transport that neglects the presence of the fracture, and also from transport from a fracture of constant length. The model and findings presented have applications in the calculation of the fate and transport of contaminants around fractured injectors and modeling the resulting contaminant plumes down stream of the wells. Further, the model also serves as a basis for modeling enhanced remediation of contaminated rock via injection well fracturing, a recently demonstrated technology. JF - Advances in Water Resources AU - Bryant, Steven L AU - Paruchuri, Ramoj K AU - Prasad Saripalli, K Y1 - 2003/08// PY - 2003 DA - August 2003 SP - 803 EP - 813 PB - Elsevier, Oxford VL - 26 IS - 8 SN - 0309-1708, 0309-1708 KW - solute transport KW - fractured materials KW - sorption KW - contaminant plumes KW - finite difference analysis KW - data processing KW - radioactive decay KW - hydraulic pressure KW - fluid dynamics KW - ground water KW - fractures KW - fluid injection KW - digital simulation KW - Reynolds number KW - propagation KW - Peclet number KW - hydraulic fracturing KW - concentration KW - numerical models KW - iterative methods KW - pollutants KW - pollution KW - equations KW - advection KW - boundary conditions KW - flows KW - aquifers KW - case studies KW - factors KW - mathematical methods KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51874469?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Flow+and+solute+transport+around+injection+wells+through+a+single%2C+growing+fracture&rft.au=Bryant%2C+Steven+L%3BParuchuri%2C+Ramoj+K%3BPrasad+Saripalli%2C+K&rft.aulast=Bryant&rft.aufirst=Steven&rft.date=2003-08-01&rft.volume=26&rft.issue=8&rft.spage=803&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2FS0309-1708%2803%2900065-4 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2004-01-01 N1 - Number of references - 26 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - advection; aquifers; boundary conditions; case studies; concentration; contaminant plumes; data processing; digital simulation; equations; factors; finite difference analysis; flows; fluid dynamics; fluid injection; fractured materials; fractures; ground water; hydraulic fracturing; hydraulic pressure; iterative methods; mathematical methods; numerical models; Peclet number; pollutants; pollution; propagation; radioactive decay; Reynolds number; solute transport; sorption; waste disposal DO - http://dx.doi.org/10.1016/S0309-1708(03)00065-4 ER - TY - JOUR T1 - Desorption kinetics of radiocesium from subsurface sediments at Hanford Site, USA AN - 51762847; 2005-006499 AB - The desorption of (super 137) Cs (super +) was investigated on sediments from the United States Hanford site. Pristine sediments and ones that were contaminated by the accidental release of alkaline (super 137) Cs (super +) -containing high level nuclear wastes (HLW, 2X10 (super 6) to 6X10 (super 7) pCi (super 137) Cs (super +) /g) were studied. The desorption of (super 137) Cs (super +) was measured in Na (super +) , K (super +) , Rb (super +) , and NH (sub 4) (super +) electrolytes of variable concentration and pH, and in presence of a strong Cs (super +) -specific sorbent (self-assembled monolayer on a mesoporous support, SAMMS). (super 137) Cs (super +) desorption from the HLW-contaminated Hanford sediments exhibited two distinct phases: an initial instantaneous release followed by a slow kinetic process. The extent of (super 137) Cs (super +) desorption increased with increasing electrolyte concentration and followed a trend of Rb (super +) > or =K (super +) >Na (super +) at circumneutral pH. This trend followed the respective selectivities of these cations for the sediment. The extent and rate of (super 137) Cs (super +) desorption was influenced by surface armoring, intraparticle diffusion, and the collapse of edge-interlayer sites in solutions containing K (super +) , Rb (super +) , or NH (sub 4) (super +) . Scanning electron microscopic analysis revealed HLW-induced precipitation of secondary aluminosilicates on the edges and basal planes of micaceous minerals that were primary Cs (super +) sorbents. The removal of these precipitates by acidified ammonium oxalate extraction significantly increased the long-term desorption rate and extent. X-ray microprobe analyses of Cs (super +) -sorbed micas showed that the (super 137) Cs (super +) distributed not only on mica edges, but also within internal channels parallel to the basal plane, implying intraparticle diffusive migration of (super 137) Cs (super +) . Controlled desorption experiments using Cs (super +) -spiked pristine sediment indicated that the (super 137) Cs (super +) diffusion rate was fast in Na (super +) -electrolyte, but much slower in the presence of K (super +) or Rb (super +) , suggesting an effect of edge-interlayer collapse. An intraparticle diffusion model coupled with a two-site cation exchange model was used to interpret the experimental results. Model simulations suggested that about 40% of total sorbed (super 137) Cs (super +) was exchangeable, including equilibrium and kinetic desorbable pools. At pH 3, this ratio increased to 60-80%. The remainder of the sorbed (super 137) Cs (super +) was fixed or desorbed at much slower rate than our experiments could detect. JF - Geochimica et Cosmochimica Acta AU - Liu, Chongxuan AU - Zachara, John M AU - Smith, Steve C AU - McKinley, James P AU - Ainsworth, Calvin C Y1 - 2003/08// PY - 2003 DA - August 2003 SP - 2893 EP - 2912 PB - Pergamon, Oxford VL - 67 IS - 16 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - desorption KW - isotopes KW - radioactive waste KW - radioactive isotopes KW - cesium KW - mica group KW - sediments KW - ion exchange KW - mass transfer KW - kinetics KW - geochemistry KW - high-level waste KW - experimental studies KW - Washington KW - alkali metals KW - pollution KW - Hanford Site KW - electrolytes KW - adsorption KW - X-ray data KW - Cs-137 KW - metals KW - cations KW - sheet silicates KW - waste disposal KW - SEM data KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51762847?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Desorption+kinetics+of+radiocesium+from+subsurface+sediments+at+Hanford+Site%2C+USA&rft.au=Liu%2C+Chongxuan%3BZachara%2C+John+M%3BSmith%2C+Steve+C%3BMcKinley%2C+James+P%3BAinsworth%2C+Calvin+C&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2003-08-01&rft.volume=67&rft.issue=16&rft.spage=2893&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2803%2900267-9 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 36 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; alkali metals; cations; cesium; Cs-137; desorption; electrolytes; experimental studies; geochemistry; Hanford Site; high-level waste; ion exchange; isotopes; kinetics; mass transfer; metals; mica group; pollution; radioactive isotopes; radioactive waste; sediments; SEM data; sheet silicates; silicates; United States; Washington; waste disposal; X-ray data DO - http://dx.doi.org/10.1016/S0016-7037(03)00267-9 ER - TY - JOUR T1 - Secondary mineralization pathways induced by dissimilatory iron reduction of ferrihydrite under advective flow AN - 51762360; 2005-006504 AB - Iron (hydr)oxides not only serve as potent sorbents and repositories for nutrients and contaminants but also provide a terminal electron acceptor for microbial respiration. The microbial reduction of Fe (hydr)oxides and the subsequent secondary solid-phase transformations will, therefore, have a profound influence on the biogeochemical cycling of Fe as well as associated metals. Here we elucidate the pathways and mechanisms of secondary mineralization during dissimilatory iron reduction by a common iron-reducing bacterium, Shewanella putrefaciens (strain CN32), of 2-line ferrihydrite under advective flow conditions. Secondary mineralization of ferrihydrite occurs via a coupled, biotic-abiotic pathway primarily resulting in the production of magnetite and goethite with minor amounts of green rust. Operating mineralization pathways are driven by competing abiotic reactions of bacterially generated ferrous iron with the ferrihydrite surface. Subsequent to the initial sorption of ferrous iron on ferrihydrite, goethite (via dissolution/reprecipitation) and/or magnetite (via solid-state conversion) precipitation ensues resulting in the spatial coupling of both goethite and magnetite with the ferrihydrite surface. The distribution of goethite and magnetite within the column is dictated, in large part, by flow-induced ferrous Fe profiles. While goethite precipitation occurs over a large Fe(II) concentration range, magnetite accumulation is only observed at concentrations exceeding 0.3 mmol/L (equivalent to 0.5 mmol Fe[II]/g ferrihydrite) following 16 d of reaction. Consequently, transport-regulated ferrous Fe profiles result in a progression of magnetite levels downgradient within the column. Declining microbial reduction over time results in lower Fe(II) concentrations and a subsequent shift in magnetite precipitation mechanisms from nucleation to crystal growth. While the initial precipitation rate of goethite exceeds that of magnetite, continued growth is inhibited by magnetite formation, potentially a result of lower Fe(III) activity. Conversely, the presence of lower initial Fe(II) concentrations followed by higher concentrations promotes goethite accumulation and inhibits magnetite precipitation even when Fe(II) concentrations later increase, thus revealing the importance of both the rate of Fe(II) generation and flow-induced Fe(II) profiles. As such, the operating secondary mineralization pathways following reductive dissolution of ferrihydrite at a given pH are governed principally by flow-regulated Fe(II) concentration, which drives mineral precipitation kinetics and selection of competing mineral pathways. JF - Geochimica et Cosmochimica Acta AU - Hansel, Colleen M AU - Benner, Shawn G AU - Neiss, Jim AU - Dohnalkova, Alice AU - Kukkadapu, Ravi K AU - Fendorf, Scott Y1 - 2003/08// PY - 2003 DA - August 2003 SP - 2977 EP - 2992 PB - Pergamon, Oxford VL - 67 IS - 16 SN - 0016-7037, 0016-7037 KW - Shewanella putrefaciens KW - Shewanella KW - iron KW - laboratory studies KW - oxides KW - mineralization KW - spectra KW - geochemistry KW - Mossbauer spectra KW - experimental studies KW - secondary minerals KW - metabolism KW - advection KW - ferrihydrite KW - X-ray spectra KW - TEM data KW - iron hydroxides KW - geochemical cycle KW - hydroxides KW - biogenic processes KW - metals KW - bacteria KW - EXAFS data KW - theoretical models KW - SEM data KW - instruments KW - microorganisms KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51762360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Secondary+mineralization+pathways+induced+by+dissimilatory+iron+reduction+of+ferrihydrite+under+advective+flow&rft.au=Hansel%2C+Colleen+M%3BBenner%2C+Shawn+G%3BNeiss%2C+Jim%3BDohnalkova%2C+Alice%3BKukkadapu%2C+Ravi+K%3BFendorf%2C+Scott&rft.aulast=Hansel&rft.aufirst=Colleen&rft.date=2003-08-01&rft.volume=67&rft.issue=16&rft.spage=2977&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2803%2900276-X L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2005-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - advection; bacteria; biogenic processes; EXAFS data; experimental studies; ferrihydrite; geochemical cycle; geochemistry; hydroxides; instruments; iron; iron hydroxides; laboratory studies; metabolism; metals; microorganisms; mineralization; Mossbauer spectra; oxides; secondary minerals; SEM data; Shewanella; Shewanella putrefaciens; spectra; TEM data; theoretical models; X-ray spectra DO - http://dx.doi.org/10.1016/S0016-7037(03)00276-X ER - TY - JOUR T1 - A tensorial connectivity-tortuosity concept to describe the unsaturated hydraulic properties of anisotropic soils AN - 51153221; 2004-026107 AB - The anisotropy in unsaturated hydraulic conductivity is saturation dependent. Yet, there are few options for modeling this phenomenon in natural soils. A tensorial connectivity-tortuosity (TCT) concept is proposed to describe the unsaturated soil hydraulic conductivity. The TCT concept assumes that soil pore connectivity and/or tortuosity are anisotropic and can be described using a tensor. Saturation-dependent anisotropy can be easily invoked in common models of relative permeability by incorporating the connectivity tensor. Synthetic Miller-similar soils having hypothetical anisotropy are defined by allowing the saturated hydraulic conductivity to have different correlation range for different directions of flow. The TCT concept was tested using the synthetic soils with four levels of heterogeneity and four levels of anisotropy. The results show that the soil water retention curves were independent of flow direction but dependent on soil heterogeneity, while the connectivity-tortuosity coefficient is a function of both soil heterogeneity and anisotropy. The TCT model can accurately describe the unsaturated hydraulic functions of anisotropic soils and can be easily combined with commonly used relative permeability functions for use in numerical solutions of the flow equation. JF - Vadose Zone Journal AU - Zhang, Z Fred AU - Ward, Andy L AU - Gee, Glendon W Y1 - 2003/08// PY - 2003 DA - August 2003 SP - 313 EP - 321 PB - Soil Science Society of America, Madison, WI VL - 2 IS - 3 KW - soils KW - hydrology KW - anisotropic materials KW - hydraulics KW - numerical models KW - statistical analysis KW - connectivity KW - unsaturated zone KW - tortuosity KW - geostatistics KW - tensors KW - simulation KW - two-dimensional models KW - theoretical studies KW - heterogeneous materials KW - hydrodynamics KW - hydraulic conductivity KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51153221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+tensorial+connectivity-tortuosity+concept+to+describe+the+unsaturated+hydraulic+properties+of+anisotropic+soils&rft.au=Zhang%2C+Z+Fred%3BWard%2C+Andy+L%3BGee%2C+Glendon+W&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2003-08-01&rft.volume=2&rft.issue=3&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 31 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Sept. 30, 2003 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anisotropic materials; connectivity; geostatistics; heterogeneous materials; hydraulic conductivity; hydraulics; hydrodynamics; hydrology; numerical models; simulation; soils; statistical analysis; tensors; theoretical studies; tortuosity; two-dimensional models; unsaturated zone ER - TY - JOUR T1 - Broad distribution of crystal-field environments for Nd (super 3+) in calcite AN - 50271372; 2007-043345 JF - Physics and Chemistry of Minerals AU - Withers, S H AU - Peale, R E AU - Schulte, A F AU - Braunstein, G AU - Beck, K M AU - Hess, W P AU - Reeder, R J Y1 - 2003/08// PY - 2003 DA - August 2003 SP - 440 EP - 448 PB - Springer-Verlag, Berlin - New York VL - 30 IS - 7 SN - 0342-1791, 0342-1791 KW - near-infrared spectra KW - mid-infrared spectra KW - lattice KW - energy dispersive methods KW - X-ray diffraction data KW - optical spectra KW - substitution KW - crystal structure KW - crystal growth KW - curium KW - remediation KW - radioactive waste KW - infrared spectra KW - distortion KW - X-ray fluorescence spectra KW - etching KW - spectra KW - rare earths KW - europium KW - geochemistry KW - synthetic materials KW - impurities KW - powder method KW - defects KW - X-ray spectra KW - EDS spectra KW - calcite KW - precipitation KW - metals KW - americium KW - EXAFS data KW - waste disposal KW - neodymium KW - crystal chemistry KW - carbonates KW - actinides KW - backscattering KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50271372?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Broad+distribution+of+crystal-field+environments+for+Nd+%28super+3%2B%29+in+calcite&rft.au=Withers%2C+S+H%3BPeale%2C+R+E%3BSchulte%2C+A+F%3BBraunstein%2C+G%3BBeck%2C+K+M%3BHess%2C+W+P%3BReeder%2C+R+J&rft.aulast=Withers&rft.aufirst=S&rft.date=2003-08-01&rft.volume=30&rft.issue=7&rft.spage=440&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-003-0331-5 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - actinides; americium; backscattering; calcite; carbonates; crystal chemistry; crystal growth; crystal structure; curium; defects; distortion; EDS spectra; energy dispersive methods; etching; europium; EXAFS data; geochemistry; impurities; infrared spectra; lattice; metals; mid-infrared spectra; near-infrared spectra; neodymium; optical spectra; powder method; precipitation; radioactive waste; rare earths; remediation; spectra; substitution; synthetic materials; waste disposal; X-ray diffraction data; X-ray fluorescence spectra; X-ray spectra DO - http://dx.doi.org/10.1007/s00269-003-0331-5 ER - TY - JOUR T1 - Novel antibiotics as inhibitors for the selective respiratory inhibition method of measuring fungal:bacterial ratios in soil AN - 19259114; 5832914 AB - The use of the selective inhibition (SI) method for measuring fungal:bacterial ratios may be limited due to biocide selectivity and the overlap of antibiotic activity. This study evaluated novel pairs of antibiotics for their specificity in soils of different origins and their potential reduction in inhibition of non-target organisms. Four soils selected for this study were from a semi-arid shrub-steppe, a loblolly pine forest and two grassland sites (restored and farmed prairie plots). Three bactericides were tested: oxytetracycline hydrochloride, streptomycin sulphate, and bronopol. Three fungicides were tested: captan, ketoconazole, and nystatin. The inhibitor additivity ratio and fungal:bacterial ratios were calculated from control and treated soils where inhibition was measured as CO sub(2) respiration reduction with biocides. We were able to minimize non-target inhibition by the antibiotics to <5% and thus calculate reliable fungal:bacterial ratios using captan to inhibit fungi in all four soils, and bronopol to inhibit bacteria in three of the four soils. The most successful bactericide in the restored prairie was oxytetracycline-HCl. Our results demonstrate that application of novel antibiotics is not uniformly successful in soils of different origin and that the SI technique requires more than just optimization of antibiotic concentration; it also requires optimization of antibiotic selection. JF - Biology and Fertility of Soils AU - Bailey, V L AU - Smith, J L AU - Bolton, H Jr AD - Pacific Northwest National Laboratory, MSIN P7-50, 902 Battelle Boulevard, Richland, WA 99352, USA Y1 - 2003/08// PY - 2003 DA - Aug 2003 SP - 154 EP - 160 VL - 38 IS - 3 SN - 0178-2762, 0178-2762 KW - bronopol KW - oxytetracycline hydrochloride KW - streptomycin sulphate KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts B: Bacteriology KW - Measurement KW - Ratios KW - Forests KW - Nystatin KW - Antibiotics KW - Ketoconazole KW - Concentration KW - Methodology KW - Soil KW - Prairies KW - Fungicides KW - Bactericides KW - Captan KW - K 03095:Soil KW - J 02901:Soil and plants KW - A 01055:Other soil treatments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19259114?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biology+and+Fertility+of+Soils&rft.atitle=Novel+antibiotics+as+inhibitors+for+the+selective+respiratory+inhibition+method+of+measuring+fungal%3Abacterial+ratios+in+soil&rft.au=Bailey%2C+V+L%3BSmith%2C+J+L%3BBolton%2C+H+Jr&rft.aulast=Bailey&rft.aufirst=V&rft.date=2003-08-01&rft.volume=38&rft.issue=3&rft.spage=154&rft.isbn=&rft.btitle=&rft.title=Biology+and+Fertility+of+Soils&rft.issn=01782762&rft_id=info:doi/10.1007%2Fs00374-003-0620-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Measurement; Ratios; Forests; Antibiotics; Nystatin; Ketoconazole; Concentration; Methodology; Soil; Prairies; Bactericides; Fungicides; Captan DO - http://dx.doi.org/10.1007/s00374-003-0620-7 ER - TY - JOUR T1 - Effect of Temperature on Cs super(+) Sorption and Desorption in Subsurface Sediments at the Hanford Site, U.S.A. AN - 19424222; 5744814 AB - The effects of temperature on Cs super(+) sorption and desorption were investigated in subsurface sediments from the U.S. Department of Energy Hanford Site. The site has been contaminated at several locations by the accidental leakage of high-level nuclear waste (HLW) containing super(137)Cs super(+). The high temperature of the self-boiling, leaked HLW fluid and the continuous decay of various radionuclides carried by the waste supernatant have resulted in elevated vadose temperatures (currently up to 72C) below the Hanford S-SX tank farm that have dissipated slowly from the time of leakage (1970). The effect of temperature on Cs super(+) sorption was evaluated through batch binary Cs super(+)-Na super(+) exchange experiments on pristine sediments, while Cs super(+) desorption was studied in column experiments using super(137)Cs super(+)-contaminated sediments. Cs super(+) adsorption generally decreased with increasing temperature, with a more apparent decrease at low aqueous Cs super(+) concentration (10 super(-10)-10 super(-6) mol/L). Cs super(+) desorption from the contaminated sediments increased with increasing temperature. The results indicated that the free energy of Na super(+)-Cs super(+) exchange on the Hanford sediment had a significant enthalpy component that was estimated to be -17.87 (c2.01) and -4.82 (c0.44) kJ/mol (at 298C) for the high- and low-affinity exchange sites, respectively. Both Cs super(+) adsorption and desorption at elevated temperature could be well simulated by a two-site ion exchange model, with the conditional exchange constants corrected by the exchange enthalpy effect. The effect of temperature on Cs super(+) desorption kinetics was also evaluated using a stop-flow technique. The kinetics of desorption of the exchangeable pool (which was less than the total adsorbed concentration) were found to be rapid under the conditions studied. JF - Environmental Science & Technology AU - Liu, Chongxuan AU - Zachara, J M AU - Qafoku, O AU - Smith, S C AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-96, Richland, WA 99352, USA, chongxuan.liu@pnl.gov Y1 - 2003/07/15/ PY - 2003 DA - 2003 Jul 15 SP - 2640 EP - 2645 VL - 37 IS - 12 SN - 0013-936X, 0013-936X KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Cesium KW - Pollution dispersion KW - Freshwater KW - Caesium isotopes KW - Ion Exchange KW - Ion exchange KW - Abiotic factors KW - Temperature effects KW - Sediment pollution KW - Sorption KW - Enthalpy KW - Leakage KW - Desorption KW - Caesium 137 KW - Temperature KW - Radioactive wastes KW - Wastes KW - Sediments KW - Free energy KW - USA, Washington, Hanford Site KW - USA KW - Kinetics KW - USA, Washington, Hanford KW - Adsorption KW - Radioisotopes KW - Radioactive contamination KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09262:Methods and instruments KW - SW 3050:Ultimate disposal of wastes KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19424222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Effect+of+Temperature+on+Cs+super%28%2B%29+Sorption+and+Desorption+in+Subsurface+Sediments+at+the+Hanford+Site%2C+U.S.A.&rft.au=Liu%2C+Chongxuan%3BZachara%2C+J+M%3BQafoku%2C+O%3BSmith%2C+S+C&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2003-07-15&rft.volume=37&rft.issue=12&rft.spage=2640&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes026221h LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-08-01 N1 - Last updated - 2016-08-17 N1 - SubjectsTermNotLitGenreText - Temperature effects; Sorption; Sediment pollution; Enthalpy; Desorption; Caesium 137; Pollution dispersion; Wastes; Radioactive wastes; Caesium isotopes; Free energy; Radioactive contamination; Radioisotopes; Ion exchange; Abiotic factors; Cesium; Temperature; Leakage; Kinetics; Ion Exchange; Adsorption; Sediments; USA; USA, Washington, Hanford; USA, Washington, Hanford Site; Freshwater DO - http://dx.doi.org/10.1021/es026221h ER - TY - JOUR T1 - Large-scale purification of 90Sr from nuclear waste materials for production of 90Y, a therapeutic medical radioisotope. AN - 73507301; 12878120 AB - A major limitation on the supply of the short-lived medical isotope 90Y (t1/2 = 64 h) is the available quantity of highly purified 90Sr generator material. A radiochemical production campaign was therefore undertaken to purify 1,500 Ci of 90Sr that had been isolated from fission waste materials. A series of alkaline precipitation steps removed all detectable traces of 137Cs, alpha emitters, and uranium and transuranic elements. Technical obstacles such as the buildup of gas pressure generated upon mixing large quantities of acid with solid 90Sr carbonate were overcome through safety features incorporated into the custom-built equipment used for 90Sr purification. Methods are described for analyzing the chemical and radiochemical purity of the final product and for accurately determining by gravimetry the quantities of 90Sr immobilized on stainless steel filters for future use. JF - Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine AU - Wester, Dennis W AU - Steele, Richard T AU - Rinehart, Donald E AU - DesChane, Jaquetta R AU - Carson, Katharine J AU - Rapko, Brian M AU - Tenforde, Thomas S AD - Radiochemical Science and Engineering Group, Environmental Technology Division, Pacific Northwest National Laboratory, Richland, WA, USA. Y1 - 2003/07// PY - 2003 DA - July 2003 SP - 35 EP - 41 VL - 59 IS - 1 SN - 0969-8043, 0969-8043 KW - Cesium Radioisotopes KW - 0 KW - Radioactive Waste KW - Radiopharmaceuticals KW - Strontium Radioisotopes KW - Yttrium Radioisotopes KW - Index Medicus KW - Chemical Precipitation KW - Cesium Radioisotopes -- isolation & purification KW - Strontium Radioisotopes -- chemistry KW - Radiopharmaceuticals -- therapeutic use KW - Yttrium Radioisotopes -- therapeutic use KW - Yttrium Radioisotopes -- chemistry KW - Radiopharmaceuticals -- chemical synthesis KW - Radioactive Waste -- analysis KW - Radiopharmaceuticals -- chemistry KW - Strontium Radioisotopes -- isolation & purification UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/73507301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+radiation+and+isotopes+%3A+including+data%2C+instrumentation+and+methods+for+use+in+agriculture%2C+industry+and+medicine&rft.atitle=Large-scale+purification+of+90Sr+from+nuclear+waste+materials+for+production+of+90Y%2C+a+therapeutic+medical+radioisotope.&rft.au=Wester%2C+Dennis+W%3BSteele%2C+Richard+T%3BRinehart%2C+Donald+E%3BDesChane%2C+Jaquetta+R%3BCarson%2C+Katharine+J%3BRapko%2C+Brian+M%3BTenforde%2C+Thomas+S&rft.aulast=Wester&rft.aufirst=Dennis&rft.date=2003-07-01&rft.volume=59&rft.issue=1&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Applied+radiation+and+isotopes+%3A+including+data%2C+instrumentation+and+methods+for+use+in+agriculture%2C+industry+and+medicine&rft.issn=09698043&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-10-23 N1 - Date created - 2003-07-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - GEN T1 - Recognizing the limits of environmental science and technology. AN - 73481819; 12875384 JF - Environmental science & technology AU - Huesemann, Michael H Y1 - 2003/07/01/ PY - 2003 DA - 2003 Jul 01 SP - 259A EP - 261A VL - 37 IS - 13 KW - Index Medicus KW - Environment KW - Policy Making KW - Science -- trends KW - Environmental Pollution -- prevention & control KW - Technology -- trends KW - Conservation of Natural Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/73481819?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Recognizing+the+limits+of+environmental+science+and+technology.&rft.au=Huesemann%2C+Michael+H&rft.aulast=Huesemann&rft.aufirst=Michael&rft.date=2003-07-01&rft.volume=37&rft.issue=13&rft.spage=259A&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-10-28 N1 - Date created - 2003-07-23 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Comment In: Environ Sci Technol. 2003 Aug 1;37(15):270A [12966949] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Toxicity of Al to Desulfovibrio desulfuricans. AN - 73424712; 12839782 AB - The toxicity of Al to Desulfovibrio desulfuricans G20 was assessed over a period of 8 weeks in a modified lactate C medium buffered at four initial pHs (5.0, 6.5, 7.2, and 8.3) and treated with five levels of added Al (0, 0.01, 0.1, 1.0, and 10 mM). At pH 5, cell population densities decreased significantly and any effect of Al was negligible compared to that of the pH. At pHs 6.5 and 7.2, the cell population densities increased by 30-fold during the first few days and then remained stable for soluble-Al concentrations of <5 x 10(-5) M. In treatments having total-Al concentrations of > or =1 mM, soluble-Al concentrations exceeded 5 x 10(-5) M and limited cell population growth substantially and proportionally. At pH 8.3, soluble-Al concentrations were below the 5 x 10(-5) M toxicity threshold and cell population density increases of 20- to 40-fold were observed. An apparent cell population response to added Al at pH 8.3 was attributed to the presence of large, spirilloidal bacteria (accounting for as much as 80% of the cells at the 10 mM added Al level). Calculations of soluble-Al speciation for the pH 6.5 and 7.2 treatments that showed Al toxicity suggested the possible presence of the Al(13)O(4)(OH)(24)(H(2)O)(12)(7+) "tridecamer" cation and an inverse correlation of the tridecamer concentration and the cell population density. Analysis by (27)Al nuclear magnetic resonance spectroscopy, however, yielded no evidence of this species in freshly prepared samples or those taken 800 days after inoculation. Exclusion of the tridecamer species from the aqueous speciation calculations at pHs 6.5 and 7.2 yielded inverse correlations of the neutral Al(OH)(3) and anionic Al(OH)(4)(-) monomeric species with cell population density, suggesting that one or both of these ions bear primary responsibility for the toxicity observed. JF - Applied and environmental microbiology AU - Amonette, J E AU - Russell, C K AU - Carosino, K A AU - Robinson, N L AU - Ho, J T AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99352, USA. jim.amonette@pnl.gov Y1 - 2003/07// PY - 2003 DA - July 2003 SP - 4057 EP - 4066 VL - 69 IS - 7 SN - 0099-2240, 0099-2240 KW - Solutions KW - 0 KW - Aluminum KW - CPD4NFA903 KW - Index Medicus KW - Solubility KW - Hydrogen-Ion Concentration KW - Colony Count, Microbial KW - Solutions -- chemistry KW - Desulfovibrio -- ultrastructure KW - Aluminum -- pharmacology KW - Desulfovibrio -- growth & development KW - Aluminum -- chemistry KW - Aluminum -- toxicity KW - Desulfovibrio -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/73424712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+environmental+microbiology&rft.atitle=Toxicity+of+Al+to+Desulfovibrio+desulfuricans.&rft.au=Amonette%2C+J+E%3BRussell%2C+C+K%3BCarosino%2C+K+A%3BRobinson%2C+N+L%3BHo%2C+J+T&rft.aulast=Amonette&rft.aufirst=J&rft.date=2003-07-01&rft.volume=69&rft.issue=7&rft.spage=4057&rft.isbn=&rft.btitle=&rft.title=Applied+and+environmental+microbiology&rft.issn=00992240&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-10-30 N1 - Date created - 2003-07-03 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Appl Environ Microbiol. 2000 Sep;66(9):3674-9 [10966375] J Inorg Biochem. 2001 Nov;87(1-2):1-8 [11709206] Microb Ecol. 2004 Jan;47(1):80-6 [15259272] Biochemistry. 1966 Feb;5(2):467-77 [5942950] Bacteriol Rev. 1977 Mar;41(1):100-80 [860983] Biochim Biophys Acta. 1985 Jul 31;835(3):441-7 [2861853] FEMS Microbiol Lett. 2000 Aug 15;189(2):143-7 [10930728] Clin Chem. 1986 Oct;32(10):1797-806 [3019589] J Theor Biol. 1992 Nov 7;159(1):83-98 [1291812] J Biol Chem. 1998 Jan 16;273(3):1727-32 [9430719] J Inorg Biochem. 1999 Aug 30;76(2):81-8 [10612060] J Inorg Biochem. 1999 Aug 30;76(2):99-104 [10612061] J Inorg Biochem. 1999 Aug 30;76(2):127-32 [10612065] Environ Health Perspect. 1985 Nov;63:115-9 [4076077] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Solution structure of Vibrio cholerae protein VC0424: A variation of the ferredoxin-like fold AN - 18855263; 5689223 AB - The structure of Vibrio cholerae protein VC0424 was determined by NMR spectroscopy. VC0424 belongs to a conserved family of bacterial proteins of unknown function (COG 3076). The structure has an alpha - beta sandwich architecture consisting of two layers: a four-stranded antiparallel beta -sheet and three side-by-side beta -helices. The secondary structure elements have the order alpha beta alpha beta beta alpha beta along the sequence. This fold is the same as the ferredoxin-like fold, except with an additional long N-terminal helix, making it a variation on this common motif. A cluster of conserved surface residues on the beta -sheet side of the protein forms a pocket that may be important for the biological function of this conserved family of proteins. JF - Protein Science AU - Ramelot, T A AU - Ni, Shuisong AU - Goldsmith-Fischman, S AU - Cort, J R AU - Honig, B AU - Kennedy, MA AD - Environmental Molecular Sciences Laboratory 2569 K8-98, Pacific Northwest National Laboratory, 3335 Q Avenue, Richland, WA 99352, USA, ma_kennedy@pnl.gov Y1 - 2003/07// PY - 2003 DA - Jul 2003 SP - 1556 EP - 1561 VL - 12 IS - 7 SN - 0961-8368, 0961-8368 KW - VC0424 protein KW - Microbiology Abstracts B: Bacteriology KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18855263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Protein+Science&rft.atitle=Solution+structure+of+Vibrio+cholerae+protein+VC0424%3A+A+variation+of+the+ferredoxin-like+fold&rft.au=Ramelot%2C+T+A%3BNi%2C+Shuisong%3BGoldsmith-Fischman%2C+S%3BCort%2C+J+R%3BHonig%2C+B%3BKennedy%2C+MA&rft.aulast=Ramelot&rft.aufirst=T&rft.date=2003-07-01&rft.volume=12&rft.issue=7&rft.spage=1556&rft.isbn=&rft.btitle=&rft.title=Protein+Science&rft.issn=09618368&rft_id=info:doi/10.1110%2Fps.03108103 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1110/ps.03108103 ER - TY - JOUR T1 - A reciprocal transplant experiment within a climatic gradient in a semiarid shrub-steppe ecosystem: effects on bunchgrass growth and reproduction, soil carbon, and soil nitrogen AN - 17851450; 5662988 AB - We investigated the effect of climate change on Poa secunda Presl. and soils in a shrub-steppe ecosystem in south-eastern Washington. Intact soil cores containing P. secunda were reciprocally transplanted between two elevations. Plants and soils were examined, respectively, 4.5 and 5 years later. The lower elevation (310 m) site is warmer (28.5 degree C air average monthly maximum) and drier (224 mm yr super(-1)) than the upper elevation (844 m) site (23.5 degree C air average monthly maximum, 272 mm yr super(-1)). Observations were also made on undisturbed plants at both sites. There was no effect of climate change on plant density, shoot biomass, or carbon isotope discrimination in either transplanted plant population. The cooler, wetter environment significantly reduced percent cover and leaf length, while the warmer, drier environment had no effect. Warming and drying reduced percent shoot nitrogen, while the cooler, wetter environment had no effect. Culm density was zero for the lower elevation plants transplanted to the upper site and was 10.3 culms m super(-2) at the lower site. There was no effect of warming and drying on the culm density of the upper elevation plants. Culm density of in situ lower elevation plants was greater than that of the in situ upper elevation plants. Warming and drying reduced total soil carbon 32% and total soil nitrogen 40%. The cooler, wetter environment had no effect on total soil C or N. Of the C and N that was lost over time, 64% of both came from the particulate organic matter fraction (POM, > 53 mu m). There was no effect of warming and drying on the upper population of P. secunda while exposing the lower population to the cooler, wetter environment reduced reproductive effort and percent cover. With the warmer and drier conditions that may develop with climate change, total C and N of semiarid soils may decrease with the active fraction of soil C also rapidly decreasing, which may alter ecosystem diversity and function. JF - Global Change Biology AU - Link, SO AU - Smith, J L AU - Halvorson, J J AU - Bolton, H AD - School of Biological Sciences, Washington State University Tri-Cities, 2710 University Drive, Richland, WA 99352, USA, United States Department of Agriculture - Agricultural Research Service, Washington State University, Pullman, WA 99164, USA, USDA-ARS, Appalachian Farming Systems Research Center, 1224 Airport Road, Beaver, WV 25813-9423, USA, Biogeochemistry, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, USA, slink@tricity.wsu.edu Y1 - 2003/07// PY - 2003 DA - Jul 2003 SP - 1097 EP - 1105 PB - Blackwell Science Ltd VL - 9 IS - 7 SN - 1354-1013, 1354-1013 KW - Ecology Abstracts; Meteorological & Geoastrophysical Abstracts KW - USA, Washington KW - Ecosystems KW - Semiarid zone vegetation KW - Climatic change influences on ecosystems KW - Semiarid environments KW - Carbon isotopes KW - Climate change KW - Climatic changes KW - Gradients KW - Steppes KW - Poa secunda KW - M2 551.583:Variations (551.583) KW - M2 551.585:Climate Classification (551.585) KW - M2 551.586:Biometeorology and Bioclimatology (551.586) KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17851450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Change+Biology&rft.atitle=A+reciprocal+transplant+experiment+within+a+climatic+gradient+in+a+semiarid+shrub-steppe+ecosystem%3A+effects+on+bunchgrass+growth+and+reproduction%2C+soil+carbon%2C+and+soil+nitrogen&rft.au=Link%2C+SO%3BSmith%2C+J+L%3BHalvorson%2C+J+J%3BBolton%2C+H&rft.aulast=Link&rft.aufirst=SO&rft.date=2003-07-01&rft.volume=9&rft.issue=7&rft.spage=1097&rft.isbn=&rft.btitle=&rft.title=Global+Change+Biology&rft.issn=13541013&rft_id=info:doi/10.1046%2Fj.1365-2486.2003.00647.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Poa secunda; USA, Washington; Semiarid environments; Gradients; Steppes; Climatic changes; Climate change; Ecosystems; Carbon isotopes; Climatic change influences on ecosystems; Semiarid zone vegetation DO - http://dx.doi.org/10.1046/j.1365-2486.2003.00647.x ER - TY - JOUR T1 - Ozone production efficiency and NO sub(x) depletion in an urban plume: Interpretation of field observations and implications for evaluating O sub(3)- NO sub(x)-VOC sensitivity AN - 16151192; 5680670 AB - Ozone production efficiency (OPE) can be defined as the number of ozone (O sub(3)) molecules photochemically produced by a molecule of NO sub(x) (NO + NO sub(2)) before it is lost from the NO sub(x)-O sub(3) cycle. Here we consider observational and modeling techniques to evaluate various operational definitions of OPEs using aircraft and surface measurements taken as part of the 1999 Southern Oxidant Study field campaign in Nashville, Tennessee. A key tool in our analysis is a Lagrangian box model, which is used to quantitatively describe the effects of emissions, dilution, dry deposition, and photochemistry in an urban air parcel as it was advected downwind. After evaluating the model using the observed downwind concentrations of several key species, we show that the modeled NO sub(x) oxidation and O sub(3) production rates as well as the associated instantaneous and cumulative OPEs depend on the time of day and the photochemical age of the air parcel. The observation-based OPEs are found to be consistent with the modeled values with the expected biases. A model sensitivity study suggests that downwind O sub(3) concentrations in the Nashville plume are more sensitive to NO sub(x) emissions than anthropogenic VOC emissions. Because the OPE exhibits a nonlinear dependence on emissions and meteorological effects, it would be difficult to rely only on observations to map out the nonlinear response of O sub(3) to a wide span of NO sub(x) and VOC emission changes. Properly constrained and well-evaluated models using a variety of observations are therefore necessary to reliably predict O sub(3)-NO sub(x)-VOC sensitivity for designing effective O sub(3) control strategies. JF - Journal of Geophysical Research. D. Atmospheres AU - Zaveri, R A AU - Berkowitz, C M AU - Kleinman, LI AU - Springston AU - Doskey, P V AU - Lonneman, WA AU - Spicer, C W AD - Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2003/07// PY - 2003 DA - Jul 2003 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 108 IS - D14 SN - 0148-0227, 0148-0227 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Citation No. 4436 KW - air pollution, Lagrangian modeling, aircraft measurements. KW - 0317 Atmospheric Composition and Structure: Chemical kinetic and photochemical properties KW - 0345 Atmospheric Composition and Structure: Pollution- urban and regional (0305) KW - 0368 Atmospheric Composition and Structure: Troposphere-constituent transport and chemistry KW - 3329 Meteorology and Atmospheric Dynamics: Mesoscale meteorology KW - 3367 Meteorology and Atmospheric Dynamics: Theoretical modeling. KW - Photochemistry KW - Mathematical models KW - Photochemical ozone production KW - Pollution dispersion KW - Nitrogen oxides in urban air KW - Urban air quality KW - Ozone production KW - Emission measurements KW - Meteorology KW - Dry deposition KW - Plumes KW - Volatile organic compounds KW - Wind KW - USA, Tennessee, Nashville KW - Urban areas KW - M2 551.510.43:Photochemical Processes (551.510.43) KW - P 0000:AIR POLLUTION KW - M2 551.501.71:Methods of observation and computation of composition and density including twilight spectrum searchlight methods (551.501.71) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16151192?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.atitle=Ozone+production+efficiency+and+NO+sub%28x%29+depletion+in+an+urban+plume%3A+Interpretation+of+field+observations+and+implications+for+evaluating+O+sub%283%29-+NO+sub%28x%29-VOC+sensitivity&rft.au=Zaveri%2C+R+A%3BBerkowitz%2C+C+M%3BKleinman%2C+LI%3BSpringston%3BDoskey%2C+P+V%3BLonneman%2C+WA%3BSpicer%2C+C+W&rft.aulast=Zaveri&rft.aufirst=R&rft.date=2003-07-01&rft.volume=108&rft.issue=D14&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&rft_id=info:doi/10.1029%2F2002JD003144 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-10-01 N1 - SuppNotes - Publication date refers to online version. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Ozone production; Photochemical ozone production; Nitrogen oxides in urban air; Urban air quality; Photochemistry; Mathematical models; Pollution dispersion; Emission measurements; Meteorology; Dry deposition; Plumes; Wind; Volatile organic compounds; Urban areas; USA, Tennessee, Nashville DO - http://dx.doi.org/10.1029/2002JD003144 ER - TY - JOUR T1 - Flow behavior and residual saturation formation of liquid carbon tetrachloride in unsaturated heterogeneous porous media. AN - 73281637; 12744831 AB - The formation of residual, discontinuous nonaqueous phase liquids (NAPLs) in the vadose zone is a process that is not well understood. To obtain data that can be used to study the development of a residual NAPL saturation in the vadose zone and to test current corresponding models, detailed transient experiments were conducted in intermediate-scale columns and flow cell. The column experiments were conducted to determine residual carbon tetrachloride (CCl(4)) saturations of two sands and to evaluate the effect of CCl(4) vapors on the water distribution. In the intermediate-scale flow cell experiment, a rectangular zone of the fine-grained sand was packed in an otherwise medium-grained matrix. A limited amount of CCl(4) was injected from a small source and allowed to redistribute until a pseudo steady state situation had developed. A dual-energy gamma radiation system was used to determine fluid saturations at numerous locations. The experiments clearly demonstrated the formation of residual CCl(4) saturations in both sands. Simulations with an established multifluid flow simulator show the shortcomings of current relative permeability-saturation-capillary pressure (k-S-P) models. The results indicate that nonspreading behavior of NAPLs should be implemented in simulators to account for the formation of residual saturations. JF - Journal of contaminant hydrology AU - Oostrom, M AU - Hofstee, C AU - Lenhard, R J AU - Wietsma, T W AD - Environmental Technology Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K9-33, Richland, WA 99352, USA. mart.oostrom@pnl.gov Y1 - 2003/06// PY - 2003 DA - June 2003 SP - 93 EP - 112 VL - 64 IS - 1-2 SN - 0169-7722, 0169-7722 KW - Industrial Waste KW - 0 KW - Silicon Dioxide KW - 7631-86-9 KW - Carbon Tetrachloride KW - CL2T97X0V0 KW - Index Medicus KW - Filtration -- methods KW - Humans KW - Porosity KW - Waste Management -- methods KW - Carbon Tetrachloride -- chemistry KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/73281637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+contaminant+hydrology&rft.atitle=Flow+behavior+and+residual+saturation+formation+of+liquid+carbon+tetrachloride+in+unsaturated+heterogeneous+porous+media.&rft.au=Oostrom%2C+M%3BHofstee%2C+C%3BLenhard%2C+R+J%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2003-06-01&rft.volume=64&rft.issue=1-2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Journal+of+contaminant+hydrology&rft.issn=01697722&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-10-03 N1 - Date created - 2003-05-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Heterogeneous electron-transfer kinetics with synchrotron (super 57) Fe Moessbauer spectroscopy AN - 51970641; 2003-050958 AB - In the first known kinetic application of the technique, synchrotron (super 57) Fe-Mossbauer spectroscopy was used to follow the rate of heterogeneous electron transfer between aqueous reagents and a solid phase containing Fe. The solid, a synthetic (super 57) Fe-enriched Fe(III)-bearing pyroaurite-like phase having terephthalate (TA) in the interlayer [Mg (sub 3) Fe(OH) (sub 8) (TA) (sub 0.5) .2H (sub 2) O], was reduced by Na (sub 2) S (sub 2) O (sub 4) and then reoxidized by K (sub 2) Cr (sub 2) O (sub 7) by means of a novel flow-through cell. Synchrotron Mossbauer spectra were collected in the time domain at 30-s intervals. Integration of the intensity obtained during a selected time interval in the spectra allowed sensitive determination of Fe(II) content as a function of reaction time. Analysis of reaction end member specimens by both the synchrotron technique and conventional Mossbauer spectroscopy yielded comparable values for Mossbauer parameters such as center shift and Fe(II)/Fe(III) area ratios. Slight differences in quadrupole splitting values were observed, however. A reactive diffusion model was developed that fit the experimental Fe(II) kinetic data well and allowed the extraction of second-order rate constants for each reaction. Thus, in addition to rapidly collecting high quality Mossbauer data, the synchrotron technique seems well suited for aqueous rate experiments as a result of the penetrating power of 14.4 keV X-rays and high sensitivity to Fe valence state. JF - Geochimica et Cosmochimica Acta AU - Amonette, J E AU - Kukkadapu, R K AU - Alp, E E AU - Sturhahn, W AU - Toellner, T S Y1 - 2003/06// PY - 2003 DA - June 2003 SP - 2109 EP - 2116 PB - Pergamon, Oxford VL - 67 IS - 12 SN - 0016-7037, 0016-7037 KW - pyroaurite KW - isotopes KW - data processing KW - stable isotopes KW - iron KW - synchrotron radiation KW - laboratory studies KW - chemical reactions KW - Fourier analysis KW - oxides KW - spectra KW - heterogeneity KW - kinetics KW - geochemistry KW - Mossbauer spectra KW - electrons KW - experimental studies KW - diffusion KW - iron minerals KW - Fe-57 KW - oxidation KW - mineral-water interface KW - metals KW - carbonates KW - 01A:General mineralogy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51970641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Heterogeneous+electron-transfer+kinetics+with+synchrotron+%28super+57%29+Fe+Moessbauer+spectroscopy&rft.au=Amonette%2C+J+E%3BKukkadapu%2C+R+K%3BAlp%2C+E+E%3BSturhahn%2C+W%3BToellner%2C+T+S&rft.aulast=Amonette&rft.aufirst=J&rft.date=2003-06-01&rft.volume=67&rft.issue=12&rft.spage=2109&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901346-7 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - carbonates; chemical reactions; data processing; diffusion; electrons; experimental studies; Fe-57; Fourier analysis; geochemistry; heterogeneity; iron; iron minerals; isotopes; kinetics; laboratory studies; metals; mineral-water interface; Mossbauer spectra; oxidation; oxides; pyroaurite; spectra; stable isotopes; synchrotron radiation DO - http://dx.doi.org/10.1016/S0016-7037(02)01346-7 ER - TY - JOUR T1 - Atmospheric observations of enhanced NO (sub 2) -HONO conversion on mineral dust particles AN - 51894393; 2004-010873 JF - Geophysical Research Letters AU - Wang, Shuhui AU - Ackermann, Ralf AU - Spicer, Chester W AU - Fast, Jerome D AU - Schmeling, Martina AU - Stutz, Jochen Y1 - 2003/06// PY - 2003 DA - June 2003 SP - 4 PB - American Geophysical Union, Washington, DC VL - 30 IS - 11 SN - 0094-8276, 0094-8276 KW - United States KW - dust storms KW - experimental studies KW - nitric acid KW - clastic sediments KW - pollutants KW - photochemistry KW - pollution KW - atmosphere KW - troposphere KW - Maricopa County Arizona KW - chemical reactions KW - photolysis KW - dust KW - Arizona KW - sediments KW - aerosols KW - seasonal variations KW - Phoenix Arizona KW - inorganic acids KW - chemical ratios KW - nitrogen dioxide KW - minerals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51894393?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Atmospheric+observations+of+enhanced+NO+%28sub+2%29+-HONO+conversion+on+mineral+dust+particles&rft.au=Wang%2C+Shuhui%3BAckermann%2C+Ralf%3BSpicer%2C+Chester+W%3BFast%2C+Jerome+D%3BSchmeling%2C+Martina%3BStutz%2C+Jochen&rft.aulast=Wang&rft.aufirst=Shuhui&rft.date=2003-06-01&rft.volume=30&rft.issue=11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2003GL017014 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 19 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aerosols; Arizona; atmosphere; chemical ratios; chemical reactions; clastic sediments; dust; dust storms; experimental studies; inorganic acids; Maricopa County Arizona; minerals; nitric acid; nitrogen dioxide; Phoenix Arizona; photochemistry; photolysis; pollutants; pollution; seasonal variations; sediments; troposphere; United States DO - http://dx.doi.org/10.1029/2003GL017014 ER - TY - JOUR T1 - Hydroclimate of the Western United States Based on Observations and Regional Climate Simulation of 1981-2000. Part II: Mesoscale ENSO Anomalies AN - 18909450; 5660781 AB - The hydroclimate of the western United States is influenced by strong interannual variability of atmospheric circulation, much of which is associated with the El Nino-Southern Oscillation (ENSO). Precipitation anomalies during ENSO often show opposite and spatially coherent dry and wet patterns in the Northwest and California or vice versa. The role of orography in establishing mesoscale ENSO anomalies in the western United States is examined based on observed precipitation and temperature data at 1/8 degree spatial resolution and a regional climate simulation at 40-km spatial resolution. Results show that during El Nino or La Nina winters, strong precipitation anomalies are found in northern California, along the southern California coast, and in the northwest mountains such as the Olympic Mountains, the Cascades, and the northern Rockies. These spatial features, which are strongly affected by topography, are surprisingly well reproduced by the regional climate simulation. double prime spatial feature investigated further is the positive-negative-positive precipitation anomaly found during El Nino years in the Olympic Mountains, and on the west side and east side of the Cascades in both observations and regional simulation. Observed streamflows of river basins located in those areas are found to be consistent with the precipitation anomalies. The spatial distribution of the precipitation anomalies is investigated by relating flow direction and moisture to the orientation of mountains and orographic precipitation. On the west side of the north-south-oriented Cascade Range, the increase in atmospheric moisture is not enough to compensate for the loss of orographic precipitation associated with a change in flow direction toward the southwest during El Nino years. In California, both the increase in atmospheric moisture and shift in wind direction toward the southwest enhance precipitation along the Sierra, which is oriented northwest to southeast. The spatial signature of the interactions between large-scale circulation and topography may provide useful information for seasonal predictions or climate change detection. JF - Journal of Climate AU - Leung, L R AU - Qian, Y AU - Bian, X AU - Hunt, A AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P.O. Box 999, Richland, WA 99352, USA, rubyleung@pnl.gov Y1 - 2003/06// PY - 2003 DA - Jun 2003 SP - 1912 EP - 1928 PB - American Meteorological Society VL - 16 IS - 12 SN - 0894-8755, 0894-8755 KW - orography KW - Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA 1: Biological Sciences & Living Resources; Meteorological & Geoastrophysical Abstracts KW - Q2 02241:General KW - Q1 01422:Environmental effects KW - SW 0810:General KW - M2 551.579:Hydrometeorology (551.579) KW - M2 551.581.1:Theoretical climatology. Climatic models. Solar climate (551.581.1) KW - Q5 01521:Mechanical and natural changes KW - M2 551.577:General Precipitation (551.577) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18909450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Climate&rft.atitle=Hydroclimate+of+the+Western+United+States+Based+on+Observations+and+Regional+Climate+Simulation+of+1981-2000.+Part+II%3A+Mesoscale+ENSO+Anomalies&rft.au=Leung%2C+L+R%3BQian%2C+Y%3BBian%2C+X%3BHunt%2C+A&rft.aulast=Leung&rft.aufirst=L&rft.date=2003-06-01&rft.volume=16&rft.issue=12&rft.spage=1912&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2F1520-0442%282003%29016%281912%3AHOTWUS%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1175/1520-0442(2003)016(1912:HOTWUS)2.0.CO;2 ER - TY - JOUR T1 - Hydroclimate of the Western United States Based on Observations and Regional Climate Simulation of 1981-2000. Part I: Seasonal Statistics AN - 18897586; 5660780 AB - The regional climate of the western United States shows clear footprints of interaction between atmospheric circulation and orography. The unique features of this diverse climate regime challenges climate modeling. This paper provides detailed analyses of observations and regional climate simulations to improve our understanding and modeling of the climate of this region. The primary data used in this study are the 1/8 degree gridded temperature and precipitation based on station observations and the NCEP-NCAR global reanalyses. These data were used to evaluate a 20-yr regional climate simulation performed using the fifth-generation Pennsylvania State University-National Center for Atmospheric Research (Penn State-NCAR) Mesoscale Model (MM5) driven by large-scale conditions of the NCEP-NCAR reanalyses. Regional climate features examined include seasonal mean and extreme precipitation; distribution of precipitation rates; and precipitation intensity, frequency, and seasonality. The relationships between precipitation and surface temperature are also analyzed as a means to evaluate how well regional climate simulations can be used to simulate surface hydrology, and relationships between precipitation and elevation are analyzed as diagnostics of the impacts of surface topography and spatial resolution. The latter was performed at five east-west transects that cut across various topographic features in the western United States. These analyses suggest that the regional simulation realistically captures many regional climate features. The simulated seasonal mean and extreme precipitation are comparable to observations. The regional simulation produces precipitation over a wide range of precipitation rates comparable to observations. Obvious biases in the simulation include the oversimulation of precipitation in the basins and intermountain West during the cold season, and the undersimulation in the Southwest in the warm season. There is a tendency of reduced precipitation frequency rather than intensity in the simulation during the summer in the Northwest and Southwest, which leads to the insufficient summer mean precipitation in those areas. Because of the general warm biases in the simulation, there is also a tendency for more precipitation events to be associated with warmer temperatures, which can affect the simulation of snowpack and runoff. JF - Journal of Climate AU - Leung, L R AU - Qian, Y AU - Bian, X AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P.O. Box 999, Richland, WA 99352, USA, rubyleung@pnl.gov Y1 - 2003/06// PY - 2003 DA - Jun 2003 SP - 1892 EP - 1911 PB - American Meteorological Society VL - 16 IS - 12 SN - 0894-8755, 0894-8755 KW - Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - SW 0810:General KW - M2 551.579:Hydrometeorology (551.579) KW - M2 551.581.1:Theoretical climatology. Climatic models. Solar climate (551.581.1) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18897586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Climate&rft.atitle=Hydroclimate+of+the+Western+United+States+Based+on+Observations+and+Regional+Climate+Simulation+of+1981-2000.+Part+I%3A+Seasonal+Statistics&rft.au=Leung%2C+L+R%3BQian%2C+Y%3BBian%2C+X&rft.aulast=Leung&rft.aufirst=L&rft.date=2003-06-01&rft.volume=16&rft.issue=12&rft.spage=1892&rft.isbn=&rft.btitle=&rft.title=Journal+of+Climate&rft.issn=08948755&rft_id=info:doi/10.1175%2F1520-0442%282003%29016%281892%3AHOTWUS%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1175/1520-0442(2003)016(1892:HOTWUS)2.0.CO;2 ER - TY - JOUR T1 - Integrated assessment of Hadley Center (HadCM2) climate-change impacts on agricultural productivity and irrigation water supply in the conterminous United States Part II. Regional agricultural production in 2030 and 2095 AN - 16159955; 5686924 AB - A national assessment (NA) evaluated the potential consequences of climate change and variability on the agriculture, water resources, as well as other economic and natural resource sectors in the United States. As part of this process, we used scenarios of the HadCM2 GCM and the EPIC agroecosystem model to evaluate climate-change impacts on crop yields and ecosystem processes. Baseline climate data were obtained from national records for 1961-1990. The scenario runs for 2025-2034 and 2090-2099 were extracted from a HadCM2 run. EPIC was run on 204 representative farms under current climate and two 10-year periods centered on 2030 and 2095, each at CO sub(2) concentrations of 365 and 560 ppm. Crops were simulated under both dryland and irrigated management, with irrigation water supply estimates taken from the HUMUS simulations in Paper 1. Texas, New Mexico, Colorado, Utah, Arizona, and California are projected to experience significant temperature increases by 2030. Slight cooling is expected by 2030 in Alabama, Florida, Maine, Montana, Idaho, and Utah. Larger areas are projected to experience increased warming by 2095. Uniform precipitation increases are expected by 2030 in the northeast. These increases are predicted to expand to the eastern half of the country by 2095. Regionally, dryland corn yields could increase, decrease or remain unchanged under the two scenarios. EPIC simulated yield increases for the Great Lakes, Corn Belt and Northeast regions. Simulated yields of irrigated corn were predicted to increase in almost all regions. Soybean yields could decrease in the Northern and Southern Plains, the Corn Belt, Delta, Appalachian, and Southeast regions and increase in the Lakes and Northeast regions. Simulated wheat yields exhibited upward trends under scenarios of climate-change. Evapotranspiration in dryland corn is expected to increase in both future periods while water-use efficiency will decrease. National corn production in 2030 and 2095 could be affected by changes in three major producing regions. In 2030, corn production could increase in the Corn Belt and Lakes regions but decrease in the Northern Plains leading to an overall decrease in national production. National wheat production is expected to increase during both future periods. A proxy indicator was developed to provide a sense of where in the country, and when water would be available to satisfy change in irrigation demand for corn and alfalfa production as these are influenced by the HadCM2 scenarios and CO sub(2)-fertilization. Irrigation requirement by irrigated crops declines under these scenarios as transpiration is suppressed. JF - Agricultural and Forest Meteorology AU - Izaurralde, R C AU - Rosenberg, N J AU - Brown, R A AU - Thomson, A M AD - Joint Global Change Research Institute, Pacific Northwest National Laboratory, University of Maryland, 8400 Baltimore Avenue, College Park, MD 20740, USA, cesar.izaurralde@pnl.gov Y1 - 2003/06// PY - 2003 DA - June 2003 SP - 97 EP - 122 PB - Elsevier VL - 117 IS - 1-2 SN - 0168-1923, 0168-1923 KW - Corn KW - Wheat KW - Water Resources Abstracts; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Erosion productivity impact calculator (EPIC) KW - Alfalfa KW - Crop yield KW - Evapotranspiration KW - Runoff KW - Agriculture KW - Inland waters KW - USA, Florida KW - Corn yield KW - Climatic changes KW - Water resources KW - Water supplies KW - Crops KW - Corn Belt KW - Crop Yield KW - USA, Alabama KW - Lakes KW - Agricultural productivity KW - Assessments KW - Climatic variability KW - Climatic change influences on corn KW - Meteorology KW - USA, California KW - USA, Utah KW - USA, New Mexico KW - Mathematical models KW - Climate and agriculture KW - Climates KW - Irrigation KW - Climate KW - Simulation KW - Water supply KW - Climatic change influences KW - Water use KW - USA KW - USA, Colorado KW - Natural resources KW - USA, Maine KW - Irrigation Water KW - Q2 09127:General papers on resources KW - P 0000:AIR POLLUTION KW - M2 551.583:Variations (551.583) KW - Q2 09241:General KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16159955?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Forest+Meteorology&rft.atitle=Integrated+assessment+of+Hadley+Center+%28HadCM2%29+climate-change+impacts+on+agricultural+productivity+and+irrigation+water+supply+in+the+conterminous+United+States+Part+II.+Regional+agricultural+production+in+2030+and+2095&rft.au=Izaurralde%2C+R+C%3BRosenberg%2C+N+J%3BBrown%2C+R+A%3BThomson%2C+A+M&rft.aulast=Izaurralde&rft.aufirst=R&rft.date=2003-06-01&rft.volume=117&rft.issue=1-2&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Forest+Meteorology&rft.issn=01681923&rft_id=info:doi/10.1016%2FS0168-1923%2803%2900024-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Agriculture; Inland waters; Water use; Mathematical models; Natural resources; Climate; Irrigation; Climatic changes; Water resources; Evapotranspiration; Water supply; Climatic change influences; Agricultural productivity; Climatic variability; Climate and agriculture; Corn yield; Climatic change influences on corn; Simulation; Meteorology; Water supplies; Crops; Lakes; Assessments; Climates; Corn; Irrigation Water; Crop Yield; Corn Belt; USA, Utah; USA, Alabama; USA, New Mexico; USA, Colorado; USA; USA, Florida; USA, Maine; USA, California DO - http://dx.doi.org/10.1016/S0168-1923(03)00024-8 ER - TY - JOUR T1 - Integrated assessment of Hadley Centre (HadCM2) climate change projections on agricultural productivity and irrigation water supply in the conterminous United States I. Climate change scenarios and impacts on irrigation water supply simulated with the HUMUS model AN - 16159828; 5686925 AB - In response to a congressional mandate, the US Global Change Research Program organized a National Assessment of Climate Change focusing on geographic regions (e.g. Alaska, Great Plains) and sectors (e.g. public health, agriculture, water resources). This paper describes methodology and results of a study by researchers at the Pacific Northwest National Laboratory contributing to the water sector analysis. The subsequent paper makes use of the water supply results to estimate the climate change impacts on irrigated agriculture. The vulnerability of water resources in the conterminous US to climate changes in 10-year periods centered on 2030 and 2095 as projected by the Hadley/United Kingdom Meteorological Office (UKMO) general circulation model (GCM; HadCM2) were modeled using the Hydrologic Unit Model for the United States (HUMUS). HUMUS, a biophysically based hydrology model, consists of a Geographical Information System (GIS) that provides data on soils, land use and climate to drive the Soil Water Assessment Tool (SWAT). The modeling was done at the scale of the eight-digit United States Geological Survey (USGS) Hydrologic Unit Area (HUA) of which there are 2101 in the conterminous US. Results are aggregated to the four- and two-digit (major water resource region, MWRR) scales for various purposes. Daily records of maximum/minimum temperature and precipitation (PPT) from 1961 to 1990 provided the baseline climate. Water yields (WY), used as a measure of water supply for irrigation, increases from the 1961-1990 baseline period over most of the US in 2030 and 2095. In 2030, WY increases in the western US and decreases in the central and southeast regions. Notably, WY increases by 139 mm (35%) from baseline in the Pacific Northwest. Driven by higher temperatures and reduced precipitation, WY is projected to decrease in the Lower Mississippi and Texas Gulf basins. The HadCM2 (2095) scenario projects a climate significantly wetter than baseline, resulting in water yield increases of 38% on average. Water yield increases are projected to be significant throughout the eastern US--39% in the Ohio basin, for example. Water yields increase significantly in the western US, as well--57 and 76% in the Upper and Lower Colorado, respectively. Climate change also affects the seasonality of the hydrologic cycle. Early snowmelt is induced in western basins, leading to dramatically increased water yields in late winter and early spring. The simulations were run at current (365 ppm) and elevated (560 ppm) atmospheric CO sub(2) concentrations [CO sub(2)] to account for the potential impacts of the 'CO sub(2)-fertilization' effect. The effects of climate change scenario were considerably greater than those due to elevated [CO sub(2)] but the latter, overall, decreased losses and augmented increases in water yield. JF - Agricultural and Forest Meteorology AU - Rosenberg, N J AU - Brown, R A AU - Izaurralde, R C AU - Thomson, A M AD - Joint Global Change Research Institute, Pacific Northwest National Laboratory, University of Maryland, College Park, 8400 Baltimore Avenue, College Park, MD 20740, USA, nj.rosenberg@pnl.gov Y1 - 2003/06// PY - 2003 DA - June 2003 SP - 73 EP - 96 PB - Elsevier VL - 117 IS - 1-2 SN - 0168-1923, 0168-1923 KW - Water Resources Abstracts; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Global warming KW - Irrigation KW - Evapotranspiration KW - Runoff KW - CO2-fertilization effect KW - Agriculture KW - Climatic changes KW - Water resources KW - Water supplies KW - Crops KW - Public health KW - Hydrologic Models KW - Agricultural productivity KW - Assessments KW - Climatic Changes KW - Hydrology KW - Meteorology KW - Hydrologic models KW - British Isles KW - USA, Alaska KW - Atmospheric precipitations KW - Water Yield KW - Mathematical models KW - Climate and agriculture KW - Climates KW - Hydrologic cycle KW - Water supply KW - USA KW - USA, Great Plains KW - General circulation models KW - Natural resources KW - Irrigation Water KW - Geographic information systems KW - Carbon dioxide KW - GIS KW - Water Resources KW - Climate change scenarios KW - M2 556:General (556) KW - Q2 09127:General papers on resources KW - P 0000:AIR POLLUTION KW - M2 551.583:Variations (551.583) KW - Q2 09241:General KW - SW 1060:Conservation in agricultural use UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16159828?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+and+Forest+Meteorology&rft.atitle=Integrated+assessment+of+Hadley+Centre+%28HadCM2%29+climate+change+projections+on+agricultural+productivity+and+irrigation+water+supply+in+the+conterminous+United+States+I.+Climate+change+scenarios+and+impacts+on+irrigation+water+supply+simulated+with+the+HUMUS+model&rft.au=Rosenberg%2C+N+J%3BBrown%2C+R+A%3BIzaurralde%2C+R+C%3BThomson%2C+A+M&rft.aulast=Rosenberg&rft.aufirst=N&rft.date=2003-06-01&rft.volume=117&rft.issue=1-2&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Agricultural+and+Forest+Meteorology&rft.issn=01681923&rft_id=info:doi/10.1016%2FS0168-1923%2803%2900025-X LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Agriculture; Mathematical models; Natural resources; Irrigation; Climatic changes; Water resources; GIS; Hydrologic cycle; Public health; Water supply; Agricultural productivity; Climate and agriculture; General circulation models; Hydrologic models; Climate change scenarios; Hydrology; Meteorology; Geographic information systems; Carbon dioxide; Water supplies; Crops; Water Yield; Hydrologic Models; Assessments; Climates; Climatic Changes; Irrigation Water; Water Resources; USA, Alaska; British Isles; USA; USA, Great Plains DO - http://dx.doi.org/10.1016/S0168-1923(03)00025-X ER - TY - JOUR T1 - The 2001 Phoenix Sunrise experiment: vertical mixing and chemistry during the morning transition in Phoenix AN - 16150151; 5606624 AB - A field experiment was carried out in Phoenix during June 2001 to examine the role of vertical mixing on the O sub(3) chemistry of the boundary layer during the morning transition from stable to unstable atmospheric conditions. Surface instruments, instruments located on two floors of a 39 story building in downtown Phoenix, and an instrumented airplane were used to characterize the evolving chemistry in the lowest 650 m of the atmosphere. Remote sensing and in situ platforms were used to obtain detailed profiles of winds and temperatures during the early morning hours and for several hours after sunrise. The analysis presented in this paper focuses on vertical profiles of CO, O sub(3), and NO measured on the building and their relationship to the morning boundary layer evolution over Phoenix. Some features of these profiles were found that are consistent with a simple conceptual picture of nighttime trapping of pollutants in a stable surface layer and a subsequent release the following morning. On some days, however, evidence of significant vertical mixing was found during the early morning hours well before the times expected for the development of convective mixing after sunrise. Possible causes include advection, street canyon turbulence, and large-scale convergence, but a satisfactory explanation for the observed evolution of the chemical profiles has not yet been found. JF - Atmospheric Environment AU - Doran, J C AU - Berkowitz, C M AU - Coulter, R L AU - Shaw, W J AU - Spicer, C W AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN K9-30, Richland, WA 99352, USA, christopher.doran@pnl.gov Y1 - 2003/06// PY - 2003 DA - Jun 2003 SP - 2365 EP - 2377 VL - 37 IS - 17 SN - 1352-2310, 1352-2310 KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Morning transition KW - CO profiles KW - O3 profiles KW - Vertical mixing KW - Urban air quality KW - Pollution monitoring KW - Diurnal variations KW - Remote sensing KW - Street canyon pollution KW - Nitrogen oxides KW - Air pollution KW - Carbon monoxide KW - Atmospheric chemistry KW - Ozone profiles KW - Atmospheric boundary layer KW - Carbon dioxide KW - USA, Arizona, Phoenix KW - Urban areas KW - Ozone KW - P 0000:AIR POLLUTION KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16150151?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=The+2001+Phoenix+Sunrise+experiment%3A+vertical+mixing+and+chemistry+during+the+morning+transition+in+Phoenix&rft.au=Doran%2C+J+C%3BBerkowitz%2C+C+M%3BCoulter%2C+R+L%3BShaw%2C+W+J%3BSpicer%2C+C+W&rft.aulast=Doran&rft.aufirst=J&rft.date=2003-06-01&rft.volume=37&rft.issue=17&rft.spage=2365&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2803%2900134-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-05-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Diurnal variations; Atmospheric chemistry; Remote sensing; Ozone profiles; Street canyon pollution; Atmospheric boundary layer; Carbon dioxide; Ozone; Carbon monoxide; Air pollution; Pollution monitoring; Nitrogen oxides; Urban areas; USA, Arizona, Phoenix DO - http://dx.doi.org/10.1016/S1352-2310(03)00134-1 ER - TY - JOUR T1 - Oxidation of H sub(2)S by Iron Oxides in Unsaturated Conditions AN - 19933152; 5801331 AB - Previous studies have demonstrated that gas-phase H sub(2)S can immobilize certain redox-sensitive contaminants (e.g., Cr, U, Tc) in vadose zone environments. A key issue for effective and efficient delivery of H sub(2)S in these environments is the reactivity of the gas with indigenous iron oxides. To elucidate the factors that control the transport of H sub(2)S in the vadose zone, laboratory column experiments were conducted to identify reaction mechanisms and measure rates of H sub(2)S oxidation by iron oxide-coated sands using several carrier gas compositions (N sub(2), air, and O sub(2)) and flow rates. Most experiments were conducted using ferrihydrite-coated sand. Additional studies were conducted with goethite- and hematite-coated sand and a natural sediment. Selective extractions were conducted at the end of each column experiment to determine the mass balance of the reaction products. XPS was used to confirm the presence of the reaction products. For column experiments in which ferrihydrite-coated sand was the substrate and N sub(2) was the carrier gas, the major H sub(2)S oxidation products were FeS and elemental sulfur (mostly S super(0) sub(8), represented as S super(0) for simplicity) at ratios that were consistent with the stoichiometry of the postulated reactions. When air or O sub(2) were used as the carrier gas, S super(0) became the dominant reaction product along with FeS sub(2) and smaller amounts of FeS, sulfate, and thiosulfate. A mathematical model of reactive transport was used to test the hypothesis that S super(0) forming on the iron oxide surfaces reduces access of H sub(2)S to the reactive surface. Several conceptual models were assessed in the context of the postulated reactions with the final model based on a linear surface poisoning model and fitted reaction rates. These results indicate that carrier gas selection is a critical consideration with significant tradeoffs for remediation objectives. JF - Environmental Science & Technology AU - Cantrell, K J AU - Yabusaki, S B AU - Engelhard, M H AU - Mitroshkov, A V AU - Thornton, E C AD - Pacific Northwest National Laboratory, P.O. Box 999, Mail Stop K6-81, Richland, Washington 99352, USA, kirk.cantrell@pnl.gov Y1 - 2003/05/15/ PY - 2003 DA - 2003 May 15 SP - 2192 EP - 2199 VL - 37 IS - 10 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Sulfur KW - Sulfates KW - Mathematical Models KW - Bioremediation KW - Model Testing KW - Flow rates KW - Flow Rates KW - Sand KW - Substrates KW - Sediment Contamination KW - Sediment pollution KW - Mathematical models KW - Water Pollution Treatment KW - Laboratory testing KW - Iron Oxides KW - Laboratories KW - Poisoning KW - Model Studies KW - Remediation KW - Oxidation KW - Iron KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19933152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Oxidation+of+H+sub%282%29S+by+Iron+Oxides+in+Unsaturated+Conditions&rft.au=Cantrell%2C+K+J%3BYabusaki%2C+S+B%3BEngelhard%2C+M+H%3BMitroshkov%2C+A+V%3BThornton%2C+E+C&rft.aulast=Cantrell&rft.aufirst=K&rft.date=2003-05-15&rft.volume=37&rft.issue=10&rft.spage=2192&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes020994o LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Sulfates; Sulfur; Sediment pollution; Mathematical models; Bioremediation; Laboratory testing; Sand; Oxidation; Poisoning; Iron; Flow rates; Mathematical Models; Water Pollution Treatment; Laboratories; Iron Oxides; Model Testing; Model Studies; Flow Rates; Remediation; Substrates; Sediment Contamination DO - http://dx.doi.org/10.1021/es020994o ER - TY - JOUR T1 - Voltammetric detection of lead(II) and mercury(II) using a carbon paste electrode modified with thiol self-assembled monolayer on mesoporous silica (SAMMS). AN - 73371388; 12790199 AB - The anodic stripping voltammetry at a carbon paste electrode modified with thiol terminated self-assembled monolayer on mesoporous silica (SH-SAMMS) provides a new sensor for simultaneous detection of lead (Pb2+) and mercury (Hg2+) in aqueous solutions. The overall analysis involved a two-step procedure: an accumulation step at open circuit, followed by medium exchange to a pure electrolyte solution for the stripping analysis. Factors affecting the performance of the SH-SAMMS modified electrodes were investigated, including electrode activation and regeneration, electrode composition, preconcentration time, electrolysis time, and composition of electrolysis and stripping media. The most sensitive and reliable electrode contained 20% SH-SAMMS and 80% carbon paste. The optimal operating conditions were a sequence with a 2 min preconcentration period, then a 60 s electrolysis period of the preconcentrated species in 0.2 M nitric acid, followed by square wave anodic stripping voltammetry from -1.0 V to 0.6 V in 0.2 M nitric acid. The areas of the peak responses were linear with respect to metal ion concentrations in the ranges of 10-1500 ppb Pb2+ and 20-1600 ppb Hg2+. The detection limits for Pb2+ and Hg2+ were 0.5 ppb Pb2+ and 3 ppb Hg2+ after a 20 min preconcentration period. JF - The Analyst AU - Yantasee, Wassana AU - Lin, Yuehe AU - Zemanian, Thomas S AU - Fryxell, Glen E AD - Pacific Northwest National Laboratory, Richland, WA, 99352, USA. Y1 - 2003/05// PY - 2003 DA - May 2003 SP - 467 EP - 472 VL - 128 IS - 5 SN - 0003-2654, 0003-2654 KW - Water Pollutants, Chemical KW - 0 KW - Lead KW - 2P299V784P KW - Carbon KW - 7440-44-0 KW - Mercury KW - FXS1BY2PGL KW - Index Medicus KW - Electrochemistry -- methods KW - Electrodes KW - Water Pollutants, Chemical -- analysis KW - Mercury -- analysis KW - Lead -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/73371388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Analyst&rft.atitle=Voltammetric+detection+of+lead%28II%29+and+mercury%28II%29+using+a+carbon+paste+electrode+modified+with+thiol+self-assembled+monolayer+on+mesoporous+silica+%28SAMMS%29.&rft.au=Yantasee%2C+Wassana%3BLin%2C+Yuehe%3BZemanian%2C+Thomas+S%3BFryxell%2C+Glen+E&rft.aulast=Yantasee&rft.aufirst=Wassana&rft.date=2003-05-01&rft.volume=128&rft.issue=5&rft.spage=467&rft.isbn=&rft.btitle=&rft.title=The+Analyst&rft.issn=00032654&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-09-26 N1 - Date created - 2003-06-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Transport of multiple tracers in variably saturated humid region structured soils and semi-arid region laminated sediments AN - 51988046; 2003-038703 AB - The processes governing physical nonequilibrium (PNE)--coupled preferential flow and matrix diffusion--are diverse between humid and semi-arid regions, and are directly related to climate and rock/sediment type, and indirectly related to subsequent soil profile development. The fate and transport of contaminants in these variably saturated undisturbed media is largely a function of the influence of PNE processes. Large cores of laminated silts and sands were collected from the US Department of Energy Pacific Northwest National Laboratory (PNNL) in semi-arid south central Washington. Additional cores of weathered, fractured interbedded limestone and shale saprolite were collected from the Oak Ridge National Laboratory (ORNL) in humid eastern Tennessee. PNNL cores were collected parallel (FBP) and perpendicular (FXB) to bedding, and the ORNL core was 30 degrees to bedding. Saturated and unsaturated transport experiments were performed using multiple nonreactive tracers that had different diffusion coefficients (Br (super -) , PFBA, and PIPES), in order to identify the influence of PNE on the fate and transport of solutes. In the ORNL structured saprolite, solute transport was governed by coupled preferential flow and matrix diffusion, as evidenced by tracer separation and highly asymmetric breakthrough curves (BTC). BTCs became more symmetric as preferential flowpaths became inactive during drainage. Tracer separation persisted during unsaturated flow suggesting the continued importance of nonequilibrium mass transfer between flowpaths and the immobile water that was held in the soil matrix. No evidence of PNE was observed under near-saturated conditions in the semi-arid region (PNNL) laminated silts and sands. Unsaturated flow in cores with discontinuous layering resulted in preferential flow and the development of perched, immobile water as evidenced by early breakthrough and separation of tracers. Conversely, transport parallel to laterally continuous beds did not result in preferential flow, the development of perched water, or tracer separation regardless of water content. These observations suggested that desaturation had two effects: (1) grain size variations between individual beds resulted in different antecedent water contents, and (2) the exchange of water and solutes between individual sedimentary beds was subsequently inhibited. Under unsaturated conditions, these effects may promote either stable lateral flow, or unstable vertical finger flow coupled with the development of perched, immobile water. JF - Journal of Hydrology AU - Mayes, M A AU - Jardine, P M AU - Mehlhorn, T L AU - Bjornstad, B N AU - Ladd, J L AU - Zachara, J M A2 - Yu, Zhongbo A2 - Hu, Bill X. Y1 - 2003/05// PY - 2003 DA - May 2003 SP - 141 EP - 161 PB - Elsevier, Amsterdam VL - 275 IS - 3-4 SN - 0022-1694, 0022-1694 KW - United States KW - solute transport KW - terrestrial environment KW - semi-arid environment KW - unsaturated zone KW - preferential flow KW - cores KW - ground water KW - saturated zone KW - Pacific Northwest National Laboratory KW - tracers KW - Tennessee KW - sediments KW - breakthrough curves KW - mass transfer KW - sedimentary structures KW - soils KW - Oak Ridge National Laboratory KW - experimental studies KW - diffusion KW - Washington KW - laminations KW - humid environment KW - pollution KW - Hanford Site KW - equilibrium KW - planar bedding structures KW - heterogeneous materials KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51988046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Transport+of+multiple+tracers+in+variably+saturated+humid+region+structured+soils+and+semi-arid+region+laminated+sediments&rft.au=Mayes%2C+M+A%3BJardine%2C+P+M%3BMehlhorn%2C+T+L%3BBjornstad%2C+B+N%3BLadd%2C+J+L%3BZachara%2C+J+M&rft.aulast=Mayes&rft.aufirst=M&rft.date=2003-05-01&rft.volume=275&rft.issue=3-4&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2FS0022-1694%2803%2900039-8 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Conference title - GSA 2000 annual meeting , symposium on Studies on water movement and solute transport in arid regions N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 57 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - breakthrough curves; cores; diffusion; equilibrium; experimental studies; ground water; Hanford Site; heterogeneous materials; humid environment; laminations; mass transfer; Oak Ridge National Laboratory; Pacific Northwest National Laboratory; planar bedding structures; pollution; preferential flow; saturated zone; sedimentary structures; sediments; semi-arid environment; soils; solute transport; Tennessee; terrestrial environment; tracers; United States; unsaturated zone; Washington DO - http://dx.doi.org/10.1016/S0022-1694(03)00039-8 ER - TY - JOUR T1 - Variation in calcite dissolution rates; a fundamental problem? AN - 51976896; 2003-043862 AB - A comparison of published calcite dissolution rates measured far from equilibrium at a pH of approximately 6 and above shows well over an order of magnitude in variation. Recently published AFM step velocities extend this range further still. In an effort to understand the source of this variation, and to provide additional constraint from a new analytical approach, we have measured dissolution rates by vertical scanning interferometry. In areas of the calcite cleavage surface dominated by etch pits, our measured dissolution rate is 10 (super -10.95) mol/cm (super 2) /s (PCO (sub 2) 10 (super -3.41) atm, pH 8.82), 5 to approximately 100 times slower than published rates derived from bulk powder experiments, although similar to rates derived from AFM step velocities. On cleavage surfaces free of local etch pit development, dissolution is limited by a slow, "global" rate (10 (super -11.68) mol/cm (super 2) /s). Although these differences confirm the importance of etch pit (defect) distribution as a controlling mechanism in calcite dissolution, they also suggest that "bulk" calcite dissolution rates observed in powder experiments may derive substantial enhancement from grain boundaries having high step and kink density. We also observed significant rate inhibition by introduction of dissolved manganese. At 2.0 mu M Mn, the rate diminished to 10 (super -12.4) mol/cm (super 2) /s, and the well formed rhombic etch pits that characterized dissolution in pure solution were absent. These results are in good agreement with the pattern of manganese inhibition in published AFM step velocities, assuming a step density on smooth terraces of approximately 9 mu m (super -1) . JF - Geochimica et Cosmochimica Acta AU - Arvidson, Rolf S AU - Ertan, Inci Evren AU - Amonette, James E AU - Luttge, Andreas Y1 - 2003/05// PY - 2003 DA - May 2003 SP - 1623 EP - 1634 PB - Pergamon, Oxford VL - 67 IS - 9 SN - 0016-7037, 0016-7037 KW - experimental studies KW - metals KW - mineral-water interface KW - rates KW - solution KW - manganese KW - geochemistry KW - carbonates KW - interferometry KW - calcite KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51976896?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Variation+in+calcite+dissolution+rates%3B+a+fundamental+problem%3F&rft.au=Arvidson%2C+Rolf+S%3BErtan%2C+Inci+Evren%3BAmonette%2C+James+E%3BLuttge%2C+Andreas&rft.aulast=Arvidson&rft.aufirst=Rolf&rft.date=2003-05-01&rft.volume=67&rft.issue=9&rft.spage=1623&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901177-8 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 44 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - calcite; carbonates; experimental studies; geochemistry; interferometry; manganese; metals; mineral-water interface; rates; solution DO - http://dx.doi.org/10.1016/S0016-7037(02)01177-8 ER - TY - JOUR T1 - Estimating soil hydraulic parameters of a field drainage experiment using inverse techniques AN - 51159473; 2003-082414 AB - Accurate assessment of water flow and contaminant transport in unsaturated porous media at the field scale is often hindered by difficulties associated with obtaining reliable estimates of soil hydraulic properties. The unsteady drainage-flux method is one of the commonly used methods to measure in situ unsaturated hydraulic properties of soils. However, the properties obtained by this method using instantaneous profile data analysis may not be the best estimation of actual values of hydraulic properties. We present an improved analysis of the data from drainage experiments using inverse modeling, which uses nonlinear regression methods to estimate hydraulic parameters. Parameter identifiability is evaluated through sensitivity and uniqueness analyses. We used the combination of the inverse modeling program, UCODE, with the flow simulator, STOMP, for inverse modeling. Applying the inverse method to a field drainage experiment in sandy soil showed that all the van Genuchten (1980) hydraulic parameters could be estimated uniquely when both water content () and pressure head (h) data were used. The parameter estimates by inverse technique using both and h data simulated the flow better than the parameter values obtained by the conventional instantaneous-profile analysis method. After the spatial and temporal sensitivities were analyzed, a more rational experimental design was recommended. JF - Vadose Zone Journal AU - Zhang, Z Fred AU - Ward, Andy L AU - Gee, Glendon W Y1 - 2003/05// PY - 2003 DA - May 2003 SP - 201 EP - 211 PB - Soil Science Society of America, Madison, WI VL - 2 IS - 2 KW - soils KW - experimental studies KW - STOMP KW - drainage KW - techniques KW - simulation KW - inverse methods KW - UCODE KW - sensitivity analysis KW - hydrodynamics KW - hydraulic conductivity KW - field studies KW - 21:Hydrogeology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51159473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Estimating+soil+hydraulic+parameters+of+a+field+drainage+experiment+using+inverse+techniques&rft.au=Zhang%2C+Z+Fred%3BWard%2C+Andy+L%3BGee%2C+Glendon+W&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2003-05-01&rft.volume=2&rft.issue=2&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 38 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Accessed on May 21, 2003 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - drainage; experimental studies; field studies; hydraulic conductivity; hydrodynamics; inverse methods; sensitivity analysis; simulation; soils; STOMP; techniques; UCODE ER - TY - JOUR T1 - Towards a unified system for detecting waterborne pathogens AN - 18756302; 5623588 AB - Currently, there is no single method to collect, process, and analyze a water sample for all pathogenic microorganisms of interest. Some of the difficulties in developing a universal method include the physical differences between the major pathogen groups (viruses, bacteria, protozoa), efficiently concentrating large volume water samples to detect low target concentrations of certain pathogen groups, removing co-concentrated inhibitors from the sample, and standardizing a culture-independent endpoint detection method. Integrating the disparate technologies into a single, universal, simple method and detection system would represent a significant advance in public health and microbiological water quality analysis. Recent advances in sample collection, on-line sample processing and purification, and DNA microarray technologies may form the basis of a universal method to detect known and emerging waterborne pathogens. This review discusses some of the challenges in developing a universal pathogen detection method, current technology that may be employed to overcome these challenges, and the remaining needs for developing an integrated pathogen detection and monitoring system for source or finished water. JF - Journal of Microbiological Methods AU - Straub, T M AU - Chandler, D P AD - Analytical Microbiology Group, Pacific Northwest National Laboratory, 902 Battelle Boulevard, P.O. Box 999 MSIN P7-50, Richland, WA 99352, USA, Timothy.Straub@pnl.gov Y1 - 2003/05// PY - 2003 DA - May 2003 SP - 185 EP - 197 PB - Elsevier Science B.V. VL - 53 IS - 2 SN - 0167-7012, 0167-7012 KW - Water Resources Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Water Analysis KW - Water Sampling KW - Water Quality KW - Pathogens KW - Water quality KW - Microbiological Studies KW - Public Health KW - Reviews KW - Detection KW - Purification KW - Samples KW - SW 3010:Identification of pollutants KW - A 01108:Other water systems UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18756302?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microbiological+Methods&rft.atitle=Towards+a+unified+system+for+detecting+waterborne+pathogens&rft.au=Straub%2C+T+M%3BChandler%2C+D+P&rft.aulast=Straub&rft.aufirst=T&rft.date=2003-05-01&rft.volume=53&rft.issue=2&rft.spage=185&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&rft_id=info:doi/10.1016%2FS0167-7012%2803%2900023-X LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Reviews; Detection; Purification; Pathogens; Samples; Water quality; Public Health; Water Analysis; Water Sampling; Water Quality; Microbiological Studies DO - http://dx.doi.org/10.1016/S0167-7012(03)00023-X ER - TY - JOUR T1 - A particle-based model of size or anion exclusion with application to microbial transport in porous media AN - 51941937; 2003-066627 JF - Water Resources Research AU - Scheibe, Timothy D AU - Wood, Brian D Y1 - 2003/04// PY - 2003 DA - April 2003 SP - 10 PB - American Geophysical Union, Washington, DC VL - 39 IS - 4 SN - 0043-1397, 0043-1397 KW - United States KW - solute transport KW - water quality KW - halogens KW - water management KW - bromide ion KW - Northampton County Virginia KW - remediation KW - ground water KW - laboratory studies KW - Oyster Virginia KW - tracers KW - breakthrough curves KW - protection KW - anions KW - experimental studies KW - Virginia KW - Darcy's law KW - bromine KW - porosity KW - size KW - models KW - bacteria KW - water resources KW - particles KW - microorganisms KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51941937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=A+particle-based+model+of+size+or+anion+exclusion+with+application+to+microbial+transport+in+porous+media&rft.au=Scheibe%2C+Timothy+D%3BWood%2C+Brian+D&rft.aulast=Scheibe&rft.aufirst=Timothy&rft.date=2003-04-01&rft.volume=39&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2001WR001223 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 73 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - anions; bacteria; breakthrough curves; bromide ion; bromine; Darcy's law; experimental studies; field studies; ground water; halogens; laboratory studies; microorganisms; models; Northampton County Virginia; Oyster Virginia; particles; porosity; protection; remediation; size; solute transport; tracers; United States; Virginia; water management; water quality; water resources DO - http://dx.doi.org/10.1029/2001WR001223 ER - TY - JOUR T1 - Carbon dioxide along WOCE line A14; water masses characterization and anthropogenic entry AN - 51813402; 2004-061831 JF - Journal of Geophysical Research AU - Rios, A F AU - Alvarez Salgado, X A AU - Perez, F F AU - Bingler, L S AU - Aristegui, J AU - Memery, L Y1 - 2003/04// PY - 2003 DA - April 2003 SP - 16 PB - American Geophysical Union, Washington, DC VL - 108 IS - C4 SN - 0148-0227, 0148-0227 KW - concentration KW - ocean circulation KW - inorganic carbon KW - human activity KW - carbon dioxide traps KW - atmosphere KW - World Ocean Circulation Experiment KW - carbon dioxide KW - provenance KW - thermocline KW - North Atlantic Deep Water KW - carbon KW - standard materials KW - tracers KW - alkalinity KW - South Atlantic KW - pH KW - Atlantic Ocean KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51813402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Carbon+dioxide+along+WOCE+line+A14%3B+water+masses+characterization+and+anthropogenic+entry&rft.au=Rios%2C+A+F%3BAlvarez+Salgado%2C+X+A%3BPerez%2C+F+F%3BBingler%2C+L+S%3BAristegui%2C+J%3BMemery%2C+L&rft.aulast=Rios&rft.aufirst=A&rft.date=2003-04-01&rft.volume=108&rft.issue=C4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2000JC000366 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 80 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkalinity; Atlantic Ocean; atmosphere; carbon; carbon dioxide; carbon dioxide traps; concentration; human activity; inorganic carbon; North Atlantic Deep Water; ocean circulation; pH; provenance; South Atlantic; standard materials; thermocline; tracers; World Ocean Circulation Experiment DO - http://dx.doi.org/10.1029/2000JC000366 ER - TY - JOUR T1 - The use of ground penetrating radar for site characterization at Hanford AN - 50881808; 2005-046595 JF - Proceedings of SAGEEP AU - Knight, Rosemary J AU - Irving, James AU - Freeman, Eugene AU - Tercier, Paulette AU - Anonymous Y1 - 2003/04// PY - 2003 DA - April 2003 SP - 221 EP - 227 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 2003 KW - United States KW - Washington KW - geophysical surveys KW - pollutants KW - ground-penetrating radar KW - variance analysis KW - statistical analysis KW - characterization KW - unsaturated zone KW - radar methods KW - pollution KW - Hanford Site KW - semivariograms KW - environmental analysis KW - ground water KW - surveys KW - water pollution KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50881808?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+SAGEEP&rft.atitle=The+use+of+ground+penetrating+radar+for+site+characterization+at+Hanford&rft.au=Knight%2C+Rosemary+J%3BIrving%2C+James%3BFreeman%2C+Eugene%3BTercier%2C+Paulette%3BAnonymous&rft.aulast=Knight&rft.aufirst=Rosemary&rft.date=2003-04-01&rft.volume=2003&rft.issue=&rft.spage=221&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+SAGEEP&rft.issn=1554-8015&rft_id=info:doi/ L2 - http://scitation.aip.org/sageep/ LA - English DB - GeoRef N1 - Conference title - Symposium on The application of geophysics to engineering and environmental problems N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 4 N1 - PubXState - CO N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - characterization; environmental analysis; geophysical surveys; ground water; ground-penetrating radar; Hanford Site; pollutants; pollution; radar methods; semivariograms; statistical analysis; surveys; United States; unsaturated zone; variance analysis; Washington; water pollution ER - TY - JOUR T1 - Influence of Electron Donor/Acceptor Concentrations on Hydrous Ferric Oxide (HFO) Bioreduction AN - 18873869; 5718146 AB - Dissimilatory metal-reducing bacteria (DMRB) facilitate the reduction of Fe and Mn oxides in anoxic soils and sediments and play an important role in the cycling of these metals and other elements such as carbon in aqueous environments. Previous studies investigating the reduction of Fe(III) oxides by DMRB focused on reactions under constant initial electron donor (lactate) and electron acceptor (Fe oxide) concentrations. Because the concentrations of these reactants can vary greatly in the environment and would be expected to influence the rate and extent of oxide reduction, the influence of variable electron acceptor and donor concentrations on hydrous ferric oxide (HFO) bioreduction was investigated. Batch experiments were conducted in pH7 HCO sub(3) super(-) buffered media using Shewanella putrefaciens strain CN32. In general, the rate of Fe(III) reduction decreased with increasing HFO:lactate ratios, resulting in a relatively greater proportion of crystalline Fe(III) oxides of relatively low availability for DMRB. HFO was transformed to a variety of crystalline minerals including goethite, lepidocrocite, and siderite but was almost completely dissolved at high lactate to HFO ratios. These results indicate that electron donor and acceptor concentrations can greatly impact the bioreduction of HFO and the suite of Fe minerals formed as a result of reduction. The respiration driven rate of Fe(II) formation from HFO is believed to be a primary factor governing the array of ferrous and ferric iron phases formed during reduction. JF - Biodegradation AU - Fredrickson, J K AU - Kota, S AU - Kukkadapu, R K AU - Liu, Chongxuan AU - Zachara, J M AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, jim.fredrickson@pnl.gov Y1 - 2003/04// PY - 2003 DA - Apr 2003 SP - 91 EP - 103 VL - 14 IS - 2 SN - 0923-9820, 0923-9820 KW - hydrous ferric oxide KW - Microbiology Abstracts B: Bacteriology KW - Reduction KW - Biodegradation KW - Shewanella putrefaciens KW - Electron transport KW - Iron KW - Soil microorganisms KW - J 02722:Biodegradation, growth, nutrition and leaching UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18873869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biodegradation&rft.atitle=Influence+of+Electron+Donor%2FAcceptor+Concentrations+on+Hydrous+Ferric+Oxide+%28HFO%29+Bioreduction&rft.au=Fredrickson%2C+J+K%3BKota%2C+S%3BKukkadapu%2C+R+K%3BLiu%2C+Chongxuan%3BZachara%2C+J+M&rft.aulast=Fredrickson&rft.aufirst=J&rft.date=2003-04-01&rft.volume=14&rft.issue=2&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Biodegradation&rft.issn=09239820&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Reduction; Biodegradation; Electron transport; Iron; Soil microorganisms; Shewanella putrefaciens ER - TY - JOUR T1 - Development of Hourly Meteorological Values From Daily Data and Significance to Hydrological Modeling at H. J. Andrews Experimental Forest AN - 18851251; 5641954 AB - Hydrologic modeling depends on having quality meteorological input available at the simulation time step. Often two needs arise: disaggregation from daily to subdaily and extend an available subdaily record. Simple techniques were tested for generating hourly air temperature, precipitation, solar radiation, relative humidity, and wind speed from limited daily data at the H. J. Andrews Experimental Forest, Oregon. Skill of the daily to hourly methods ranged from poor to very good. The best method for each variable had mean error 0.5, with the exception of wind speed, which had a bias problem related to change in measurement height. Significance of the disaggregation assumptions for simulated hydrology was evaluated by driving the Distributed Hydrology Soil Vegetation Model (DHSVM) with alternative meteorological inputs. The largest differences in streamflow simulation efficiency were related to differences in precipitation phase, which followed from the air temperature method used. The largest differences in annual water balance were related to the humidity model used; the common fallback assumption that daily dewpoint temperature equals minimum air temperature led to sharply higher evapotranspiration. Hourly streamflow and annual water balance were less sensitive to the method of distributing precipitation throughout the day and parameterization of solar radiation. JF - Journal of Hydrometeorology AU - Waichler AU - Wigmosta AD - Pacific Northwest National Laboratory, K9-36, P.O. Box 999, Richland, WA 99352, scottwaichler@pnl.gov Y1 - 2003/04// PY - 2003 DA - Apr 2003 SP - 251 EP - 263 PB - American Meteorological Society VL - 4 IS - 2 SN - 1525-755X, 1525-755X KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Water budget KW - Time series KW - Relative Humidity KW - Climatic data KW - Hydrologic Models KW - Hydrology KW - Meteorological observations KW - USA, Oregon KW - Wind KW - Hydrologic models KW - Modelling KW - Atmospheric precipitations KW - Solar Radiation KW - Air Temperature KW - Vegetation KW - Humidity KW - Streamflow KW - Evapotranspiration KW - Precipitation KW - Hydrometeorological data KW - Stream flow KW - Atmosphere-hydrologic coupled models KW - Water balance KW - INE, USA, Oregon KW - Analytical techniques KW - SW 0810:General KW - Q2 09162:Methods and instruments KW - M2 556.072:Models, analogies, etc. (556.072) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18851251?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrometeorology&rft.atitle=Development+of+Hourly+Meteorological+Values+From+Daily+Data+and+Significance+to+Hydrological+Modeling+at+H.+J.+Andrews+Experimental+Forest&rft.au=Waichler%3BWigmosta&rft.aulast=Waichler&rft.aufirst=&rft.date=2003-04-01&rft.volume=4&rft.issue=2&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrometeorology&rft.issn=1525755X&rft_id=info:doi/10.1175%2F1525-7541%282003%294%28251%3ADOHMVF%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Atmospheric precipitations; Climatic data; Water budget; Time series; Analytical techniques; Evapotranspiration; Meteorological observations; Stream flow; Modelling; Water balance; Atmosphere-hydrologic coupled models; Hydrometeorological data; Hydrologic models; Solar Radiation; Hydrologic Models; Air Temperature; Humidity; Vegetation; Hydrology; Streamflow; Precipitation; Relative Humidity; Wind; INE, USA, Oregon; USA, Oregon DO - http://dx.doi.org/10.1175/1525-7541(2003)4(251:DOHMVF)2.0.CO;2 ER - TY - JOUR T1 - Lessons learned from reactive transport modeling of a low-activity waste glass disposal system AN - 16167977; 5688752 AB - A set of reactive chemical transport calculations were conducted with the Subsurface Transport Over Reactive Multiphases (STORM) code to evaluate the long-term performance of a representative low-activity waste glass in a shallow subsurface disposal system located on the Hanford site. Two different trench designs were considered, one with four rows of small waste packages (old design), the other with three layers of larger waste packages (new design). One-dimensional (1D) simulations were carried out to 20,000 yr, whereas two-dimensional (2D) simulations could only be carried out for 10,000 yr due to constraints on computational time. Both the 1D and 2D simulations predicted that the technetium release rate from the waste packages would be lower for the new trench design at times greater than 1 yr. Having fewer, larger waste packages decreases the glass surface area exposed to reaction with pore water. In the 2D simulations, water can flow around the waste packages, which causes a decrease in the water flux through the waste packages and lower release rates than predicted in the 1D simulations. This result reinforces the importance of performing multi-dimensional waste form release simulations. JF - Computers & Geosciences AU - Bacon, D H AU - Peter McGrail, B AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K9-33, Richland, WA 99352, USA, diana.bacon@pnl.gov Y1 - 2003/04// PY - 2003 DA - Apr 2003 SP - 361 EP - 370 VL - 29 IS - 3 SN - 0098-3004, 0098-3004 KW - Water Resources Abstracts; Pollution Abstracts KW - Waste Management KW - Waste Disposal KW - Radioactive wastes KW - Waste Dumps KW - Simulation KW - Interstitial Water KW - Glass KW - USA, Washington, Hanford Site KW - Performance Evaluation KW - Chemical Wastes KW - Waste disposal KW - Hazardous wastes KW - SW 3050:Ultimate disposal of wastes KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16167977?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=Lessons+learned+from+reactive+transport+modeling+of+a+low-activity+waste+glass+disposal+system&rft.au=Bacon%2C+D+H%3BPeter+McGrail%2C+B&rft.aulast=Bacon&rft.aufirst=D&rft.date=2003-04-01&rft.volume=29&rft.issue=3&rft.spage=361&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2FS0098-3004%2803%2900011-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Radioactive wastes; Simulation; Glass; Waste disposal; Hazardous wastes; Performance Evaluation; Waste Management; Chemical Wastes; Waste Disposal; Waste Dumps; Interstitial Water; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1016/S0098-3004(03)00011-6 ER - TY - JOUR T1 - Influence of mineral precipitation and dissolution on hydrologic properties of porous media in static and dynamic systems AN - 16148552; 5557125 AB - A critical component in determining the suitability of disposing glassified, low activity waste is the identification of key mineral assemblages affecting the porosity and permeability of both the glass and near- and far-field materials. In this study, two different classes of geochemical models are used to identify mineral precipitation and dissolution potentials for an immobilized low-activity waste (ILAW) disposal facility in Hanford, Washington. The first is a static geochemical model that does not consider the effects of transport. The second model is dynamic, and combines geochemical reactions with hydrogeological processes such as advection, diffusion and dispersion. This reactive transport model also includes an innovative application of a depositional film model for determining changes in permeability due to mineral precipitation and dissolution reactions. Although both models describe solid-aqueous phase reactions kinetically, the two models identify two different sets of mineral assemblages affecting the porosity and permeability of the media. These markedly different results are due to transport considerations, the most significant of which are the spatial variability in aqueous concentrations, and advection and diffusion of dissolved glass constituents into the backfill materials. This work shows that for the prediction of geochemical behavior of engineered systems, such as the ILAW disposal facility, the traditional reaction path modeling approach is not sufficient for an accurate assessment of the precipitation of key mineral assemblages and their effect on the geochemical and hydraulic behavior of the waste glass. Reactive transport modeling improves this assessment significantly. The static model is useful in identifying potential minerals to be included in the reactive transport simulations. The dynamic model, however, ultimately determines the key mineral assemblages affecting both the geochemical behavior and the hydraulic properties of the waste glass in the presence of a flowing aqueous phase. JF - Applied Geochemistry AU - Freedman, V L AU - Saripalli, K P AU - Meyer, P D AD - Pacific Northwest National Laboratory, 1318 Sigma V Complex (K6-81), Richland, WA 99352, USA, prasad.saripalli@pnl.gov Y1 - 2003/04// PY - 2003 DA - Apr 2003 SP - 589 EP - 606 VL - 18 IS - 4 SN - 0883-2927, 0883-2927 KW - USA, Washington KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - Waste Management KW - Waste Disposal KW - Hydrogeology KW - Geochemistry KW - Porosity KW - Wastes KW - Mineralogy KW - Waste management KW - Spatial variations KW - Permeability KW - Mineral assemblages KW - USA, Washington, Hanford KW - Precipitation (Chemical) KW - Geohydrology KW - Chemical Precipitation KW - Waste disposal KW - Permeation KW - Dispersion KW - AQ 00001:Water Resources and Supplies KW - SW 3050:Ultimate disposal of wastes KW - Q2 09264:Sediments and sedimentation KW - Q5 08501:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16148552?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Influence+of+mineral+precipitation+and+dissolution+on+hydrologic+properties+of+porous+media+in+static+and+dynamic+systems&rft.au=Freedman%2C+V+L%3BSaripalli%2C+K+P%3BMeyer%2C+P+D&rft.aulast=Freedman&rft.aufirst=V&rft.date=2003-04-01&rft.volume=18&rft.issue=4&rft.spage=589&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2FS0883-2927%2802%2900116-6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-09-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Spatial variations; Permeability; Mineral assemblages; Porosity; Wastes; Dispersion; Geochemistry; Precipitation (Chemical); Hydrogeology; Mineralogy; Waste disposal; Permeation; Waste management; Waste Management; Waste Disposal; Chemical Precipitation; Geohydrology; USA, Washington, Hanford DO - http://dx.doi.org/10.1016/S0883-2927(02)00116-6 ER - TY - JOUR T1 - Nonlocal bacterial electron transfer to hematite surfaces AN - 52007485; 2003-027753 AB - Mechanisms by which dissimilatory iron-reducing bacteria utilize iron and manganese oxide minerals as terminal electron acceptors for respiration are poorly understood. In the absence of exogenous electron shuttle compounds, extracellular electron transfer is generally thought to occur through the interfacial contact area between mineral surfaces and attached cells. Possible alternative reduction pathways have been proposed based on the discovery of a link between an excreted quinone and dissimilatory reduction. In this study, we utilize a novel experimental approach to demonstrate that Shewanella putrefaciens reduces the surface of crystalline iron oxides at spatial locations that are distinct from points of attachment. JF - Geochimica et Cosmochimica Acta AU - Rosso, Kevin M AU - Zachara, John M AU - Fredrickson, Jim K AU - Gorby, Yuri A AU - Smith, Steven C A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 1081 EP - 1087 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - experimental studies KW - iron oxides KW - Shewanella putrefaciens KW - Shewanella KW - biogenic processes KW - atomic force microscopy data KW - single-crystal method KW - chemical reactions KW - hematite KW - bacteria KW - oxides KW - surface reactions KW - reduction KW - geochemistry KW - mineral surface KW - electrons KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52007485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Nonlocal+bacterial+electron+transfer+to+hematite+surfaces&rft.au=Rosso%2C+Kevin+M%3BZachara%2C+John+M%3BFredrickson%2C+Jim+K%3BGorby%2C+Yuri+A%3BSmith%2C+Steven+C&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=1081&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900904-3 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 33 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; bacteria; biogenic processes; chemical reactions; electrons; experimental studies; geochemistry; hematite; iron oxides; mineral surface; oxides; reduction; Shewanella; Shewanella putrefaciens; single-crystal method; surface reactions DO - http://dx.doi.org/10.1016/S0016-7037(02)00904-3 ER - TY - JOUR T1 - Potentiometric and (super 19) F nuclear magnetic resonance spectroscopic study of fluoride substitution in the GaAl (sub 12) polyoxocation; implications for aluminum (hydr)oxide mineral surfaces AN - 52006798; 2003-027752 AB - Fluoride replacement of oxygens in the GaO (sub 4) Al (sub 12) (OH) (sub 24) (H (sub 2) O)127+(aq) molecule [GaAl (sub 12) ] was studied via (super 19) F nuclear magnetic resonance (NMR) at 4 identical with Fe(II) + OH (super ) (sub (ads)) + H (super +) The combination of two OH (super ) then produces H (sub 2) O (sub 2) . In the present study, we show spectroscopic evidence consistent with the conversion of Fe(III) to Fe(II) at defect sites, the origin of H (sub 2) O (sub 2) from H (sub 2) O, and the existence of OH (super ) in solution. To demonstrate the iron conversion at the surface, X-ray photoelectron spectroscopy (XPS) was employed. Using a novel mass spectrometry method, the production of H (sub 2) O (sub 2) was evaluated. The aqueous concentration of OH (super ) was measured using a standard radical scavenger method. The formation of OH (super ) via the interaction of H (sub 2) O with the pyrite surface is consistent with several observations in earlier studies and clarifies a fundamental step in the oxidation mechanism of pyrite. JF - Geochimica et Cosmochimica Acta AU - Borda, Michael J AU - Elsetinow, Alicia R AU - Strongin, Daniel R AU - Schoonen, Martin A A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 935 EP - 939 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - water KW - experimental studies KW - mass spectra KW - iron KW - measurement KW - ferrous iron KW - laboratory studies KW - hydroxyl ion KW - ferric iron KW - chemical reactions KW - metals KW - surface defects KW - surface reactions KW - pyrite KW - spectra KW - X-ray photoelectron spectra KW - crystal chemistry KW - sulfides KW - geochemistry KW - mineral surface KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52004290?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=A+mechanism+for+the+production+of+hydroxyl+radical+at+surface+defect+sites+on+pyrite&rft.au=Borda%2C+Michael+J%3BElsetinow%2C+Alicia+R%3BStrongin%2C+Daniel+R%3BSchoonen%2C+Martin+A&rft.aulast=Borda&rft.aufirst=Michael&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=935&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901222-X L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 25 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal chemistry; experimental studies; ferric iron; ferrous iron; geochemistry; hydroxyl ion; iron; laboratory studies; mass spectra; measurement; metals; mineral surface; pyrite; spectra; sulfides; surface defects; surface reactions; water; X-ray photoelectron spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)01222-X ER - TY - JOUR T1 - Effects of different crystal faces on the surface charge of colloidal goethite (alpha -FeOOH) particles; an experimental and modeling study AN - 52004117; 2003-027745 AB - The surface charge of colloidal particles is usually determined by potentiometric titration. These acid-base titrations make it possible to measure the pH of point-of-zero charge (pzc) for oxide minerals. This macroscopic property is the most important parameter used in surface complexation modeling to reproduce experimental data. The pzc values of goethite reported in the literature vary between 7.0 and 9.5. Carbonate adsorption and/or surface morphology are thought to account for this wide range. We demonstrate a procedure for the removal of the carbonate ions that initially adsorb on goethite and strongly affect the titration curves and pzc determination. We also investigated the crystal-face-specific reactivity of two morphologically different goethites. The z-profiles obtained from atomic force microscopy (AFM) images showed that the goethite with the smallest specific surface area (S = 49 m (super 2) /g, denoted G49) exhibits 70% of the (001) face, whereas this value is only 30% for the goethite with largest specific surface area (S = 95 m (super 2) /g, denoted G95). This morphologic difference results in slightly different pzc values: 9.0 for G49 goethite and 9.1 for G95 geothite. These experimental pzc values have been correlated with multisite complexation calculations using both the full-site and the 1-pK approaches. We used the full-site approach to consider all of the configurations of hydrogen bond interactions with surface site. The resulting mean charges gave estimated pzc values of 8.9 and 9.2 for the (001) and (101) faces, respectively. Considering these theoretical pzc values for individual faces and the face distributions obtained from AFM analysis, the calculated pzc values are in full agreement with the experimental pzc values. However, this morphologic difference is more expressed in surface charge values than in the pzc values. Indeed, the surface charge of G49 goethite is much higher than that of G95 goethite, and the 1-pK calculations make it possible to fit the titration data satisfactorily. JF - Geochimica et Cosmochimica Acta AU - Gaboriaud, Fabien AU - Ehrhardt, Jean-Jacques A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 967 EP - 983 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - crystal form KW - iron oxides KW - goethite KW - data processing KW - techniques KW - electrochemical properties KW - laboratory studies KW - chemical reactions KW - digital simulation KW - oxides KW - surface reactions KW - particulate materials KW - synthesis KW - geochemistry KW - mineral surface KW - experimental studies KW - colloidal materials KW - chemical analysis KW - titration KW - numerical models KW - surface charge KW - electrolytes KW - models KW - sample preparation KW - reagents KW - MUSIC model KW - theoretical models KW - potentiometry KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52004117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Effects+of+different+crystal+faces+on+the+surface+charge+of+colloidal+goethite+%28alpha+-FeOOH%29+particles%3B+an+experimental+and+modeling+study&rft.au=Gaboriaud%2C+Fabien%3BEhrhardt%2C+Jean-Jacques&rft.aulast=Gaboriaud&rft.aufirst=Fabien&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=967&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900988-2 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 65 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical analysis; chemical reactions; colloidal materials; crystal form; data processing; digital simulation; electrochemical properties; electrolytes; experimental studies; geochemistry; goethite; iron oxides; laboratory studies; mineral surface; models; MUSIC model; numerical models; oxides; particulate materials; potentiometry; reagents; sample preparation; surface charge; surface reactions; synthesis; techniques; theoretical models; titration DO - http://dx.doi.org/10.1016/S0016-7037(02)00988-2 ER - TY - JOUR T1 - Molecular simulation of the magnetite-water interface AN - 52003821; 2003-027747 AB - This paper reports molecular dynamics simulations of the magnetite (001)-water interface, both in pure water and in the presence of a 2.3 molal solution of NaClO (sub 4) . The simulations are carried out using a potential model designed to allow the protonation states of the surface functional groups to evolve dynamically through the molecular dynamics trajectory. The primary structural quantities investigated are the populations of the surface functional groups, the distribution of electrolyte in the solution, and the surface hydrogen bonding relationships. The surface protonation states are dominated by extensive hydrolysis of interfacial water molecules, giving rise to a dipolar surface dominated by FeOH (sub 2) (super +) -OH (sub 2) -OH (super -) arrangements. Triply coordinated, more deeply buried, surface sites are inert, probably due to the relative lack of solvent in their vicinity. The electrolyte distribution is oscillatory, arranging preferentially in layers defined by the solvating water molecules. The presence of electrolyte has a negligible effect on the protonation states of the surface functional groups. Steady-state behavior is obtained for the protonation states of the surface functional groups and hydrogen-bonding network. Although the overall structure of the electrolyte distribution is fairly well established, the electrolyte distribution has not fully equilibrated, as evidenced by the asymmetry in the distribution from the top to the bottom of the slab. JF - Geochimica et Cosmochimica Acta AU - Rustad, James R AU - Felmy, Andrew R AU - Bylaska, Eric J A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 1001 EP - 1016 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - water KW - sodium chloride KW - iron oxides KW - coordination KW - data processing KW - mineral-water interface KW - electrolytes KW - crystal structure KW - protons KW - chemical reactions KW - digital simulation KW - parallel processing KW - theoretical models KW - oxides KW - surface reactions KW - molecular dynamics KW - crystal chemistry KW - geochemistry KW - mineral surface KW - magnetite KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52003821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Molecular+simulation+of+the+magnetite-water+interface&rft.au=Rustad%2C+James+R%3BFelmy%2C+Andrew+R%3BBylaska%2C+Eric+J&rft.aulast=Rustad&rft.aufirst=James&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=1001&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900900-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 39 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; coordination; crystal chemistry; crystal structure; data processing; digital simulation; electrolytes; geochemistry; iron oxides; magnetite; mineral surface; mineral-water interface; molecular dynamics; oxides; parallel processing; protons; sodium chloride; surface reactions; theoretical models; water DO - http://dx.doi.org/10.1016/S0016-7037(02)00900-6 ER - TY - JOUR T1 - Metal island growth and dynamics on molybdenite surfaces AN - 52003605; 2003-027741 AB - In order to understand the adsorption mechanism of metal atoms to semiconducting surfaces, we have studied, as a model system, the vapor phase adsorption of Ag, Au, and Cu on the (001) surface of molybdenite (MoS (sub 2) ) and the subsequent surface diffusion of these adsorbates. Our scanning tunneling microscopy (STM) images show that, depending on the type of metal atom that is adsorbed, islands of a characteristic size (2 nm for Ag, 8 to 10 nm for Cu, two distinct sizes of 2 nm and 8 to 10 nm for Au), shape (well rounded in the lateral extension) and thickness (one monolayer for Ag, 1 to 1.5 nm for Cu) are formed during the initial stages of deposition. Whole islands are observed to surface diffuse without loss of size or shape. Despite the relatively large size of the copper islands on molybdenite, these islands surface diffuse extensively, suggesting that the Cu-S interaction is weak. Surface diffusion is only hindered once individual islands start to coalesce. As copper islands accumulate, the size and shape of the original islands can still be recognized, supporting the conclusion that these characteristics are constant and that monolayer growth occurs by the aggregation of islands across the surface. The strength and the nature of the Ag-S(MoS (sub 2) ) bond were further investigated by using molecular orbital calculations, ultraviolet photoelectron spectroscopy (UPS) and scanning tunneling spectroscopy (STS). By applying quantum mechanical approaches using a two-dimensional periodic molybdenite slab and hexagonal MoS (sub 2) clusters of different sizes with metal atoms adsorbed to them, it is possible to calculate the electron transfer between the mineral surface and the metal atom as well as the adsorption energy as a function of surface coverage. In addition, we used the results from the quantum mechanical runs to derive empirical potentials that model the characteristics of the forces within the crystal, within the adsorbed islands, and the metal and mineral surface. The combination of quantum mechanical calculations and empirical force field calculations explain the electronic structure and the highest stability of Ag islands that have seven atoms in diameter, which exactly agrees with the size of experimentally observed islands. UPS results also suggest that a specific new state is formed (approximately 4.5 eV into the valence band) which may describe the Ag-S bond because it does not occur in pure silver or molybdenite. This study shows how the combination of microscopic (STM), spectroscopic (STS, UPS), compositional (X-ray photoelectron spectroscopy, XPS) and molecular modeling (quantum mechanical and empirical) techniques is a useful approach to understand the nature of the metal to sulfide bond. Further insights may be gained concerning the natural association of certain metals with sulfides. JF - Geochimica et Cosmochimica Acta AU - Becker, Udo AU - Rosso, Kevin M AU - Weaver, Robert AU - Warren, Michele AU - Hochella, Michael F, Jr A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 923 EP - 934 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - experimental studies KW - diffusion KW - copper KW - silver KW - electron microscopy data KW - crystal growth KW - bonding KW - adsorption KW - STM data KW - laboratory studies KW - scanning tunneling microscopy data KW - chemical reactions KW - metals KW - ultraviolet spectra KW - sulfur KW - surface reactions KW - spectra KW - gold KW - X-ray photoelectron spectra KW - sulfides KW - mobility KW - mineral surface KW - molybdenite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52003605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Metal+island+growth+and+dynamics+on+molybdenite+surfaces&rft.au=Becker%2C+Udo%3BRosso%2C+Kevin+M%3BWeaver%2C+Robert%3BWarren%2C+Michele%3BHochella%2C+Michael+F%2C+Jr&rft.aulast=Becker&rft.aufirst=Udo&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=923&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901144-4 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; bonding; chemical reactions; copper; crystal growth; diffusion; electron microscopy data; experimental studies; gold; laboratory studies; metals; mineral surface; mobility; molybdenite; scanning tunneling microscopy data; silver; spectra; STM data; sulfides; sulfur; surface reactions; ultraviolet spectra; X-ray photoelectron spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)01144-4 ER - TY - JOUR T1 - Arsenite sorption on troilite (FeS) and pyrite (FeS (sub 2) ) AN - 52003412; 2003-027740 AB - Arsenic is a toxic metalloid whose mobility and availability are largely controlled by sorption on sulfide minerals in anoxic environments. Accordingly, we investigated reactions of As(III) with iron sulfide (FeS) and pyrite (FeS (sub 2) ) as a function of total arsenic concentration, suspension density, sulfide concentration, pH, and ionic strength. Arsenite partitioned strongly on both FeS and FeS (sub 2) under a range of conditions and conformed to a Langmuir isotherm at low surface coverages; a calculated site density of near 2.6 and 3.7 sites/nm (super 2) for FeS and FeS (sub 2) , respectively, was obtained. Arsenite sorbed most strongly at elevated pH (>5 to 6). Although solution data suggested the formation of surface precipitates only at elevated solution concentrations, surface precipitates were identified using X-ray absorption spectroscopy (XAS) at all coverages. Sorbed As was coordinated to both sulfur [d(As-S) = 2.35 Aa] and iron [d(As-Fe) = 2.40 Aa], characteristic of As coordination in arsenopyrite (FeAsS). The absorption edge of sorbed As was also shifted relative to arsenite and orpiment (As (sub 2) S (sub 3) ), revealing As(III) reduction and a complete change in As local structure. Arsenic reduction was accompanied by oxidation of both surface S and Fe(II); the FeAsS-like surface precipitate was also susceptible to oxidation, possibly influencing the stability of As sorbed to sulfide minerals in the environment. Sulfide additions inhibit sorption despite the formation of a sulfide phase, suggesting that precipitation of arsenic sulfide is not occurring. Surface precipitation of As on FeS and FeS (sub 2) supports the observed correlation of arsenic and pyrite and other iron sulfides in anoxic sediments. JF - Geochimica et Cosmochimica Acta AU - Bostick, Benjamin C AU - Fendorf, Scott A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 909 EP - 921 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - sorption KW - coordination KW - iron KW - XANES spectra KW - laboratory studies KW - chemical reactions KW - surface reactions KW - spectra KW - X-ray photoelectron spectra KW - geochemistry KW - troilite KW - synthetic materials KW - mineral surface KW - experimental studies KW - arsenic KW - X-ray spectra KW - arsenites KW - iron sulfides KW - metals KW - EXAFS data KW - sulfur KW - pyrite KW - crystal chemistry KW - sulfides KW - chemical fractionation KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52003412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Arsenite+sorption+on+troilite+%28FeS%29+and+pyrite+%28FeS+%28sub+2%29+%29&rft.au=Bostick%2C+Benjamin+C%3BFendorf%2C+Scott&rft.aulast=Bostick&rft.aufirst=Benjamin&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=909&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901170-5 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 75 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - arsenic; arsenites; chemical fractionation; chemical reactions; coordination; crystal chemistry; EXAFS data; experimental studies; geochemistry; iron; iron sulfides; laboratory studies; metals; mineral surface; pyrite; sorption; spectra; sulfides; sulfur; surface reactions; synthetic materials; troilite; X-ray photoelectron spectra; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)01170-5 ER - TY - JOUR T1 - Surface oxidation of pyrite under ambient atmospheric and aqueous (pH = 2 to 10) conditions; electronic structure and mineralogy from X-ray absorption spectroscopy AN - 52003364; 2003-027738 AB - The nature of the surface oxidation phase on pyrite, FeS (sub 2) , reacted in aqueous electrolytes at pH = 2 to 10 and with air under ambient atmospheric conditions was studied using synchrotron-based oxygen K edge, sulfur L (sub III) edge, and iron L (sub II,III) edge X-ray absorption spectroscopy. We demonstrate that O K edge X-ray absorption spectra provide a sensitive probe of sulfide surface oxidation that is complementary to X-ray photoelectron spectroscopy. Using total electron yield detection, the top 20 to 50 Aa of the pyrite surface is characterized. In air, pyrite oxidizes to form predominantly ferric sulfate. In aqueous air-saturated solutions, the surface oxidation products of pyrite vary with pH, with a marked transition occurring around pH 4. Below pH = 4, a ferric (hydroxy)sulfate is the main oxidation product on the pyrite surface. At higher pH, we find iron(III) oxyhydroxide in addition to ferric (hydroxy)sulfate on the surface. Under the most alkaline conditions, the O K edge spectrum closely resembles that of goethite, FeOOH, and the surface is oxidized to the extent that no FeS (sub 2) can be detected in the X-ray absorption spectra. In a 1.667X10 (super -3) mol/L Fe (super 3+) solution with ferric iron present as FeCl (sub 3) in NaCl, the oxidation of pyrite is autocatalyzed, and formation of the surface iron(III) oxyhydroxide phase is promoted at low pH. JF - Geochimica et Cosmochimica Acta AU - Todd, E C AU - Sherman, Dave M AU - Purton, J A A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 881 EP - 893 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - experimental studies KW - oxyhydroxides KW - oxidation KW - natural materials KW - mineral-water interface KW - electrolytes KW - electrochemical properties KW - X-ray spectra KW - iron hydroxides KW - synchrotron radiation KW - hydroxides KW - laboratory studies KW - Raman spectra KW - catalysis KW - chemical reactions KW - oxides KW - surface reactions KW - air KW - spectra KW - geochemistry KW - pH KW - mineral surface KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52003364?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Surface+oxidation+of+pyrite+under+ambient+atmospheric+and+aqueous+%28pH+%3D+2+to+10%29+conditions%3B+electronic+structure+and+mineralogy+from+X-ray+absorption+spectroscopy&rft.au=Todd%2C+E+C%3BSherman%2C+Dave+M%3BPurton%2C+J+A&rft.aulast=Todd&rft.aufirst=E&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=881&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900957-2 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - air; catalysis; chemical reactions; electrochemical properties; electrolytes; experimental studies; geochemistry; hydroxides; iron hydroxides; laboratory studies; mineral surface; mineral-water interface; natural materials; oxidation; oxides; oxyhydroxides; pH; Raman spectra; spectra; surface reactions; synchrotron radiation; X-ray spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)00957-2 ER - TY - JOUR T1 - Natural realgar and amorphous AsS oxidation kinetics AN - 52003326; 2003-027736 AB - The oxidation rates of natural realgar and amorphous synthetic AsS by dissolved oxygen were evaluated using mixed flow reactors at pH 7.2 to 8.8 and dissolved oxygen contents of 5.9 to 16.5 ppm over a temperature range of 25 to 40 degrees C. The ratios of As/S are stoichiometric for all amorphous AsS oxidation experiments except for two experiments conducted at pH approximately 8.8. In these experiments, stoichiometric ratios of As/S were only observed in the early stages of AsS (am) oxidation whereas lower As/S ratios were observed during steady state. For realgar oxidation experiments, the As/S ratio is less than the stoichiometric ratio of realgar, ranging between 0.61 and 0.71. This nonstoichiometric release of As and S to solution indicates that realgar oxidation is more selective for S after the rates of oxidation become constant. All measured oxidation rates at 25 degrees C can be described within experimental uncertainties as follows: Rate Expression: R (sub Realgar/As)) = 10 (super -9.63(+ or -0.41)) [DO] (super 0.51(+ or -0.08)) [H (super +) ] (super -0.28(+ or -0.05)) --Activation Energy (kJ/mol): 64.2+ or -9.8; Rate Expression: R (sub (Realgar/S)) = 10 (super -9.74(+ or -0.35)) [DO] (super 0.54(+ or -0.05)) [H (super +) ] (super -0.31(+ or -0.04)) --Activation Energy (kJ/mol): 62.2+ or -9.0; Rate Expression: R (sub (AsS(am))) = 10 (super -13.65(+ or -0.82)) [DO] (super 0.92(+ or -0.08)) [H (super +) ] (super -1.09(+ or -0.10)) --Activation Energy (kJ/mol): 124+ or -18.8; where R signifies the steady-state oxidation rate (mol m (super -2) s (super -1) ), [DO] is dissolved oxygen concentration (M), and [H (super +) ] is the proton concentration (M). Arsenic (III) and As(V) are both present in solution, and As(III) is the dominant species in most experiments. Intermediate sulfur species besides sulfate, sulfite, and thiosulfate are the important products during realgar and AsS (am) oxidation. Comparison of realgar and AsS (am) oxidation rates shows that at similar conditions, the rates of AsS (am) are always faster by about a factor ranging from 2 to 38. The oxidation of realgar involves breaking bonds in the realgar crystal, whereas AsS (am) oxidation does not include crystallographic framework destruction due to the amorphous nature of the solid. JF - Geochimica et Cosmochimica Acta AU - Lengke, Maggy F AU - Tempel, Regina N A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 859 EP - 871 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - chemical weathering KW - experimental studies KW - amorphous materials KW - pollutants KW - oxidation KW - natural materials KW - arsenic KW - pollution KW - mineral-water interface KW - weathering KW - realgar KW - laboratory studies KW - chemical reactions KW - metals KW - sulfides KW - stoichiometry KW - kinetics KW - geochemistry KW - synthetic materials KW - pH KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52003326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Natural+realgar+and+amorphous+AsS+oxidation+kinetics&rft.au=Lengke%2C+Maggy+F%3BTempel%2C+Regina+N&rft.aulast=Lengke&rft.aufirst=Maggy&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=859&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901227-9 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amorphous materials; arsenic; chemical reactions; chemical weathering; experimental studies; geochemistry; kinetics; laboratory studies; metals; mineral-water interface; natural materials; oxidation; pH; pollutants; pollution; realgar; stoichiometry; sulfides; synthetic materials; weathering DO - http://dx.doi.org/10.1016/S0016-7037(02)01227-9 ER - TY - JOUR T1 - Arsenite adsorption on galena (PbS) and sphalerite (ZnS) AN - 52002790; 2003-027739 AB - Arsenite, As(III), sorption on galena (PbS) and sphalerite (ZnS) was investigated as a function of solution composition and characterized using X-ray absorption spectroscopy (XAS). Adsorption conformed to a Langmuir isotherm except at the highest surface loadings, and it was not strongly affected by changes in ionic strength. Arsenite sorbed appreciably only at pH > approximately 5 for PbS and pH approximately 4.5 for ZnS, behavior distinct from its adsorption on other substrates. Arsenite adsorption on PbS and ZnS resulted in the conversion from As-O to As-S coordination. Arsenite does not adsorb through ligand-exchange of surface hydroxyl or sulfhydryl groups. Rather, it forms a polynuclear arsenic sulfide complex on ZnS and PbS consistent with the As (sub 3) S (sub 3) (SH) (sub 3) trimer postulated by for sulfidic solutions. This complex was unstable in the presence of oxidizing agents and synchrotron light--it quickly converted to As(V), which was largely retained by the surface. These data illustrate the complexity of As(III) adsorption to even simple sulfide minerals. JF - Geochimica et Cosmochimica Acta AU - Bostick, Benjamin C AU - Fendorf, Scott AU - Manning, Bruce A A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 895 EP - 907 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - experimental studies KW - lead sulfides KW - arsenic KW - sphalerite KW - crystal structure KW - adsorption KW - X-ray spectra KW - XANES spectra KW - laboratory studies KW - galena KW - arsenites KW - chemical reactions KW - metals KW - zinc sulfides KW - surface reactions KW - spectra KW - crystal chemistry KW - sulfides KW - geochemistry KW - pH KW - mineral surface KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52002790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Arsenite+adsorption+on+galena+%28PbS%29+and+sphalerite+%28ZnS%29&rft.au=Bostick%2C+Benjamin+C%3BFendorf%2C+Scott%3BManning%2C+Bruce+A&rft.aulast=Bostick&rft.aufirst=Benjamin&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=895&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900959-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; arsenic; arsenites; chemical reactions; crystal chemistry; crystal structure; experimental studies; galena; geochemistry; laboratory studies; lead sulfides; metals; mineral surface; pH; spectra; sphalerite; sulfides; surface reactions; X-ray spectra; XANES spectra; zinc sulfides DO - http://dx.doi.org/10.1016/S0016-7037(02)00959-6 ER - TY - JOUR T1 - Monitoring fundamental reactions at NiAsS surfaces by synchrotron radiation X-ray photoelectron spectroscopy; As and S air oxidation by consecutive reaction schemes AN - 52002732; 2003-027735 AB - Synchrotron X-ray photoelectron As 3d and S 2p spectra of gersdorffite reveal that the surface monolayer includes two types of surface anionic species, As-S dimers and As-S multimers (probably tetramers), the latter being the product of a polymeric surface reaction, implying that the surface undergoes some reconstruction. Monomeric states of S and As may also be present at the surface. Formation of the tetramers is energetically favored in that two dangling bonds are eliminated with formation of each tetrameric surface species. Reaction of air with NiAsS is initiated by oxidation of As surface species, which is rapid compared with oxidation of sulfur species. Oxidation of both As and S proceeds by production of numerous intermediate reaction products in which As and S display intermediate oxidation states. The abundances of sulfur and arsenic intermediate oxidation products initially increase, achieve maxima, then decrease as the final oxidation products (arsenate and sulfate) accumulate. These trends in abundance suggest that air oxidation of As and S proceeds by consecutive reaction schemes and that the elementary reactions of these schemes involve transfer of only one electron per reaction step. Sulfur is the most electronegative of the surface atoms, and the associated dangling bond likely contains a lone pair of electrons, thus imparting diamagnetic character to the surface atom. Arsenic surface atoms should have greater tendency toward paramagnetic character, and this may explain the greater rate of As oxidation during exposure of gersdorffite to the atmosphere. Air-oxidized fractured surfaces and polished surfaces of NiAsS rapidly develop an overlayer containing primarily As-bearing species in both reduced and oxidized forms. The oxidized overlayer is, by contrast, virtually devoid of S and Ni, demonstrating preferential diffusion of As from the bulk into the overlayer. JF - Geochimica et Cosmochimica Acta AU - Nesbitt, H W AU - Schaufuss, A AU - Sciani, M AU - Hoechst, H AU - Bancroft, G M AU - Szargan, R A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 845 EP - 858 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - experimental studies KW - oxidation KW - arsenic KW - bonding KW - synchrotron radiation KW - laboratory studies KW - chemical reactions KW - arsenides KW - metals KW - sulfur KW - surface reactions KW - air KW - spectra KW - X-ray photoelectron spectra KW - crystal chemistry KW - sulfides KW - geochemistry KW - mineral surface KW - gersdorffite KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52002732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Monitoring+fundamental+reactions+at+NiAsS+surfaces+by+synchrotron+radiation+X-ray+photoelectron+spectroscopy%3B+As+and+S+air+oxidation+by+consecutive+reaction+schemes&rft.au=Nesbitt%2C+H+W%3BSchaufuss%2C+A%3BSciani%2C+M%3BHoechst%2C+H%3BBancroft%2C+G+M%3BSzargan%2C+R&rft.aulast=Nesbitt&rft.aufirst=H&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=845&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900944-4 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - air; arsenic; arsenides; bonding; chemical reactions; crystal chemistry; experimental studies; geochemistry; gersdorffite; laboratory studies; metals; mineral surface; oxidation; spectra; sulfides; sulfur; surface reactions; synchrotron radiation; X-ray photoelectron spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)00944-4 ER - TY - JOUR T1 - Pyrite oxidation; a state-of-the-art assessment of the reaction mechanism AN - 52002449; 2003-027737 AB - The oxidation of pyrite to release ferrous iron and sulfate ions to solution involves the transfer of seven electrons from each sulfur atom in the mineral to an aqueous oxidant. Because only one or, at most, two electrons can be transferred at a time, the overall oxidation process is quite complex. Furthermore, pyrite is a semiconductor, so the electrons are transferred from sulfur atoms at an anodic site, where oxygen atoms from water molecules attach to the sulfur atoms to form sulfoxy species, through the crystal to cathodic Fe(II) sites, where they are acquired by the oxidant species. The reaction at the cathodic sites is the rate-determining step for the overall process. This paper maps out the most important steps in this overall process. JF - Geochimica et Cosmochimica Acta AU - Rimstidt, J Donald AU - Vaughan, David J A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 873 EP - 880 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - sulfate ion KW - oxidation KW - mechanism KW - electrochemical properties KW - iron KW - ferrous iron KW - theoretical studies KW - chemical reactions KW - metals KW - theoretical models KW - surface reactions KW - pyrite KW - sulfides KW - geochemistry KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52002449?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Pyrite+oxidation%3B+a+state-of-the-art+assessment+of+the+reaction+mechanism&rft.au=Rimstidt%2C+J+Donald%3BVaughan%2C+David+J&rft.aulast=Rimstidt&rft.aufirst=J&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=873&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901165-1 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 49 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; electrochemical properties; ferrous iron; geochemistry; iron; mechanism; metals; oxidation; pyrite; sulfate ion; sulfides; surface reactions; theoretical models; theoretical studies DO - http://dx.doi.org/10.1016/S0016-7037(02)01165-1 ER - TY - JOUR T1 - Proximity effects on semiconducting mineral surfaces; II, Distance dependence of indirect interactions AN - 52002439; 2003-027743 AB - In a previous study, we described proximity effects on surfaces of the semiconducting minerals galena and pyrite, whereby a chemical reaction at one surface site modifies the reactivity of a remote surface site several Angstroms or even nanometers away (Becker et al., 2001). The modification of interest does not arise because of a direct "through space" interaction between the two sites, but rather an indirect interaction via the electronic structure of the substrate. Here we investigate the distance and direction dependence of proximity effects using quantum mechanical modeling. The direct and indirect interactions between co-adsorbed oxygen atoms and between adsorbed oxygen atoms and point defects on vacuum-terminated galena (100) surfaces were modeled. Density functional theory cluster and plane wave pseudopotential calculations were used to calculate the modifications to the adsorption energy as a function of separation. Energy-distance plots indicate that the proximity effect energy can become very strong at separations decreasing below about 5 to 6 Aa, and persist at increasing separations up to 12 Aa in a slowly decaying form. A strong attractive indirect interaction out-competes direct electrostatic repulsion for O-vacancy interactions. An oscillatory asymptotic behavior is found for co-adsorbed O-O indirect interactions, which indicates that the proximity effect energy can vary with surface crystallographic direction. It implies the presence of a strong organizing force on like adatoms that may explain the progressive oxidation of certain sulfide minerals by patchwork growth. These findings begin to pave the way for improved adsorption isotherms and extended surface complexation models that will include the specific influence of semiconductor-type proximity effects. JF - Geochimica et Cosmochimica Acta AU - Rosso, Kevin M AU - Becker, Udo A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 941 EP - 953 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - oxygen KW - quantum mechanics KW - electrostatic properties KW - electrochemical properties KW - boundary conditions KW - point defects KW - galena KW - chemical reactions KW - semiconductors KW - theoretical models KW - surface reactions KW - crystal chemistry KW - sulfides KW - geochemistry KW - mineral surface KW - electrons KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52002439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Proximity+effects+on+semiconducting+mineral+surfaces%3B+II%2C+Distance+dependence+of+indirect+interactions&rft.au=Rosso%2C+Kevin+M%3BBecker%2C+Udo&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=941&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900990-0 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - For reference to Part 1 see Becker, U., Rosso, K. M., and Hochella, M. F., Geochim. Cosmochim. Acta., Vol. 65, p. 2641-2649, 2001 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - boundary conditions; chemical reactions; crystal chemistry; electrochemical properties; electrons; electrostatic properties; galena; geochemistry; mineral surface; oxygen; point defects; quantum mechanics; semiconductors; sulfides; surface reactions; theoretical models DO - http://dx.doi.org/10.1016/S0016-7037(02)00990-0 ER - TY - JOUR T1 - First principles studies of the surface of galena PbS AN - 52002408; 2003-027730 AB - Ab initio calculations of the surface structure and properties of the (001) surface of galena (PbS) have been performed using two complementary approaches. Both Gaussian and numerical basis functions have been utilized, as embodied within the programs CRYSTAL98 and SIESTA, with their associated implementations, in order to determine to what extent computational factors are influencing the results. Relaxations are presented based on calculations employing the HF, B3LYP, LDA, and GGA Hamiltonians. Significant relaxations (up to about 0.2 Aa) are found to occur at the surface which decay with increasing depth into the bulk. The magnitude of the relaxation oscillates between layers, leading to pairing, with Pb ions being displaced outwards (by approximately 0.05 Aa) relative to the S ions. We find that the LDA, GGA, and B3LYP Hamiltonians give results in reasonable agreement with each other, but that the structures computed with HF theory are vastly different. The present calculations also predict a surface core level shift of 0.3 eV for the sulphur 2p level at the surface itself, in excellent agreement with a recent experimental determination. JF - Geochimica et Cosmochimica Acta AU - Muscat, J AU - Gale, J D A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 799 EP - 805 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - numerical models KW - data processing KW - crystal structure KW - computer programs KW - galena KW - CRYSTAL98 KW - digital simulation KW - theoretical models KW - SIESTA KW - crystal chemistry KW - sulfides KW - mineral surface KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52002408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=First+principles+studies+of+the+surface+of+galena+PbS&rft.au=Muscat%2C+J%3BGale%2C+J+D&rft.aulast=Muscat&rft.aufirst=J&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=799&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900978-X L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - computer programs; crystal chemistry; crystal structure; CRYSTAL98; data processing; digital simulation; galena; mineral surface; numerical models; SIESTA; sulfides; theoretical models DO - http://dx.doi.org/10.1016/S0016-7037(02)00978-X ER - TY - JOUR T1 - Kinetics and mechanisms of the leaching of low Fe sphalerite AN - 52002392; 2003-027733 AB - The surface speciation and leaching kinetics of 38- to 75-mu m sphalerite (0.45 wt.% Fe) particles reacted in O (sub 2) purged perchloric acid (at pH 1.0) at 25, 40, 60, and 85 degrees C over a leach period of 144 h were investigated. In all cases, an initial rapid leach rate is observed followed by a slower leach rate. These two leach regimes can each be adequately modeled using straight-line interpolation, and thus two activation energies (E (sub a) ) have been derived. E (sub a) for the fast and slow Zn dissolution rates were 33+ or -4 kJ mol (super -1) and 34+ or -4 kJ mol (super -1) respectively, suggesting the same rate-determining step. JF - Geochimica et Cosmochimica Acta AU - Weisener, C G AU - Smart, Roger St C AU - Gerson, Andrea R A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 823 EP - 830 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - mechanism KW - mass spectra KW - solution KW - iron KW - laboratory studies KW - activation energy KW - chemical reactions KW - surface reactions KW - spectra KW - X-ray photoelectron spectra KW - kinetics KW - geochemistry KW - pH KW - mineral surface KW - experimental studies KW - acids KW - acid mine drainage KW - sphalerite KW - pollution KW - mineral-water interface KW - metals KW - leaching KW - sulfides KW - chemical fractionation KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52002392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Kinetics+and+mechanisms+of+the+leaching+of+low+Fe+sphalerite&rft.au=Weisener%2C+C+G%3BSmart%2C+Roger+St+C%3BGerson%2C+Andrea+R&rft.aulast=Weisener&rft.aufirst=C&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=823&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901276-0 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 23 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acid mine drainage; acids; activation energy; chemical fractionation; chemical reactions; experimental studies; geochemistry; iron; kinetics; laboratory studies; leaching; mass spectra; mechanism; metals; mineral surface; mineral-water interface; pH; pollution; solution; spectra; sphalerite; sulfides; surface reactions; X-ray photoelectron spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)01276-0 ER - TY - JOUR T1 - A quantum chemical investigation of the oxidation and dissolution mechanisms of galena AN - 52002358; 2003-027732 AB - The oxidation and dissolution mechanisms of galena (PbS) remain uncertain with a wide variety of possible mechanisms having been proposed in the literature. In this study, the thermodynamic viability of some possible mechanisms has been tested using semi-empirical quantum chemical calculations applied to a perfect (001) galena surface. The adsorption of O (sub 2) and H (sub 2) O has been examined in both the gaseous and aqueous environments. In agreement with previous ab initio quantum chemical calculations, the surface induced dissociation of H (sub 2) O in either environment was found to be energetically unfavourable. However, the dissociative adsorption of O (sub 2) was found to be possible and resulted in two O atoms bonded to diagonally adjacent S atoms with the O atoms oriented along the diagonal. The adsorption of H (super +) and possible subsequent dissolution mechanisms have been examined in the aqueous environment. An anaerobic mechanism leading to the dissolution of hydroxylated Pb (super 2+) was identified. The mechanism involves the protonation of 3 surface S atoms surrounding a central surface Pb atom followed by substitution of this Pb by a further H (super +) . The activation energy of this mechanism was estimated to be nearly equal 100 kJ mol (super -1) . Pb (super 2+) dissolution could only occur with vacancy stabilisation by a H (super +) . The analogous mechanisms for systems comprising H (super +) adsorbed on either 2 or 4 of the S atoms surrounding a central surface Pb were not found to be energetically viable. Subsequent dissolution of one of the protonated S atoms to form H (sub 2) S (sub (g)) was not found to be possible thus indicating the likely formation of a Pb-deficient S-rich surface under acidic anaerobic conditions. Acidic aerobic dissolution has also been examined. Congruent dissolution to form H (sub 2) SO (sub 4) and Pb (super 2+) .6H (sub 2) O is energetically viable. The dissolution of one of the protonated S atoms neighbouring the Pb (super 2+) vacancy, resulting from the anaerobic dissolution, to form H (sub 2) SO (sub 4) , is also possible. JF - Geochimica et Cosmochimica Acta AU - Gerson, Andrea R AU - O'Dea, Anthony R A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 813 EP - 822 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - water KW - COSMO model KW - oxygen KW - oxidation KW - data processing KW - mineral-water interface KW - adsorption KW - solution KW - activation energy KW - galena KW - chemical reactions KW - digital simulation KW - theoretical models KW - surface reactions KW - thermodynamic properties KW - sulfides KW - geochemistry KW - mineral surface KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52002358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=A+quantum+chemical+investigation+of+the+oxidation+and+dissolution+mechanisms+of+galena&rft.au=Gerson%2C+Andrea+R%3BO%27Dea%2C+Anthony+R&rft.aulast=Gerson&rft.aufirst=Andrea&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=813&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901147-X L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - activation energy; adsorption; chemical reactions; COSMO model; data processing; digital simulation; galena; geochemistry; mineral surface; mineral-water interface; oxidation; oxygen; solution; sulfides; surface reactions; theoretical models; thermodynamic properties; water DO - http://dx.doi.org/10.1016/S0016-7037(02)01147-X ER - TY - JOUR T1 - Interlayer structure and dynamics of Cl-bearing hydrotalcite; far infrared spectroscopy and molecular dynamics modeling AN - 52001760; 2003-027617 AB - Comparison of the observed far-infrared (FIR) spectrum of Cl-containing hydrotalcite, [Mg (sub 3) Al(OH) (sub 8) ]Cl (sub 3) H (sub 2) O, to a power spectrum calculated using molecular dynamics (MD) computer simulation, provides a greatly increased understanding of the structure and vibrational dynamics in the interlayers of layered double hydroxides. Good agreement between the observed FIR band positions and the simulated power spectrum illustrates the capability of this combination of experimental and computational techniques to effectively probe the structure and dynamics of water in nano-pores and other confined spaces. The simulation model assumes an ordered Mg (sub 3) Al arrangement in the octahedral sheet and no constraints on the movement of any atoms or on the geometry and symmetry of the simulation supercell. Calculated anisotropic components of the individual atomic power spectra in combination with computed animations of the vibrational modes from normal mode analysis allow for reliable interpretations of the observed spectral bands. For the vibrations related to octahedral cation motions, bands near 145, 180, and 250 cm (super -1) are due dominantly to Mg vibration in the c direction (perpendicular to the hydroxide layers), Al vibrations in the c direction, and Mg and Al vibrations in the a-b plane (parallel to the hydroxide layers), respectively. The low frequency vibrational motions of the interlayer are controlled by a network of hydrogen bonds formed between interlayer water molecules, Cl (super -) ions, and the OH groups of the main hydroxide layers. The bands near 40-70 cm (super -1) are related to the translational motions of interlayer Cl (super -) and H (sub 2) O in the a-b plane, and the bands near 120 cm (super -1) and 210 cm (super -1) are largely due to translational motions of the interlayer species in the c direction. The three librational modes of interlayer water molecules near 390, 450, and 540 cm (super -1) correspond to twisting, rocking, and wagging hindered rotations, respectively. The spectral components of the interlayer Cl-motions are remarkably similar to those of bulk aqueous chloride solutions, reflecting the structural and dynamic similarity of the nearest-neighbor Cl (super -) environments in the interlayer and in solution. JF - American Mineralogist AU - Wang, Jianwei AU - Kalinichev, Andrey G AU - Amonette, James E AU - Kirkpatrick, R James Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 398 EP - 409 PB - Mineralogical Society of America, Washington, DC VL - 88 IS - 2-3 SN - 0003-004X, 0003-004X KW - models KW - mineral interlayer KW - chlorine KW - hydrotalcite KW - halogens KW - crystal structure KW - spectra KW - molecular dynamics KW - carbonates KW - infrared spectra KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52001760?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Interlayer+structure+and+dynamics+of+Cl-bearing+hydrotalcite%3B+far+infrared+spectroscopy+and+molecular+dynamics+modeling&rft.au=Wang%2C+Jianwei%3BKalinichev%2C+Andrey+G%3BAmonette%2C+James+E%3BKirkpatrick%2C+R+James&rft.aulast=Wang&rft.aufirst=Jianwei&rft.date=2003-03-01&rft.volume=88&rft.issue=2-3&rft.spage=398&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - carbonates; chlorine; crystal structure; halogens; hydrotalcite; infrared spectra; mineral interlayer; models; molecular dynamics; spectra ER - TY - JOUR T1 - Surface alteration of arsenopyrite (FeAsS) by Thiobacillus ferrooxidans AN - 50299950; 2003-027744 AB - The surface of arsenopyrite was characterized after acidic, oxidative leaching in the presence of the bacterial species Thiobacillus ferrooxidans. Polished single-crystal grains of arsenopyrite were reacted for 1, 2, and 3 weeks with T. ferrooxidans suspended in a solution (pH 2.3) of essential salts (MgSO (sub 4) .7H (sub 2) O, [NH (sub 4) ] (sub 2) SO (sub 4) , KH (sub 2) PO (sub 4) , and KCl). Abiotic control experiments were conducted in identical solutions. Reaction between arsenopyrite and T. ferrooxidans in the essential salts solution produced a uniform solid FePO (sub 4) overlayer ( approximately 0.2 mu m thick) on the arsenopyrite surface within 1 week. The overlayer was detected visually by scanning electron microscopy (SEM) and chemically by X-ray photoelectron spectroscopy (XPS). It could not be distinguished by energy-dispersive X-ray analyses. No overlayer formed in the abiotic control. The uniform thickness and lateral continuity of the overlayer suggest an inorganic origin promoted by bacterial production of Fe (super 3+) . Iron released from arsenopyrite was oxidized by bacteria and subsequently precipitated with PO (sub 4) (super 3-) (from the essential salts), forming ferric phosphate. After 2 and 3 weeks, SEM images revealed a roughened arsenopyrite surface, and XPS depth profiles indicated a progressively thicker phosphate overlayer and continued oxidation, diffusion, and dissolution of arsenopyrite beneath the overlayer. After only 1 week, the cells were isolated from the arsenopyrite surface by the uniform overlayer. Therefore, bacteria need not be attached to arsenopyrite to promote rapid reaction, and the mechanism of alteration at the arsenopyrite surface must have been inorganic. Because the delicate overlayer did not prevent continued alteration of arsenopyrite, FePO (sub 4) may not be an effective barrier to oxidation in the tailings environment. The FePO (sub 4) coating has likely formed in other experiments using these bacteria but was not detected because analytical techniques were not sufficiently surface sensitive to identify a separate, compositionally distinct overlayer. Some previous experimental results thus may be misleading or inapplicable to the tailings environment. JF - Geochimica et Cosmochimica Acta AU - Jones, R A AU - Koval, S F AU - Nesbitt, H W A2 - Becker, Udo A2 - Rosso, Kevin M. Y1 - 2003/03// PY - 2003 DA - March 2003 SP - 955 EP - 965 PB - Pergamon, Oxford VL - 67 IS - 5 SN - 0016-7037, 0016-7037 KW - alteration KW - iron KW - laboratory studies KW - ferric iron KW - Acidithiobacillus KW - chemical reactions KW - Acidithiobacillus ferrooxidans KW - arsenides KW - Thiobacillus KW - acidic composition KW - surface reactions KW - applications KW - spectra KW - X-ray photoelectron spectra KW - geochemistry KW - Bacillus KW - pH KW - mineral surface KW - experimental studies KW - oxidation KW - pollution KW - mineral-water interface KW - phosphate ion KW - biogenic processes KW - precipitation KW - metals KW - bacteria KW - arsenopyrite KW - leaching KW - tailings KW - sulfides KW - SEM data KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50299950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Surface+alteration+of+arsenopyrite+%28FeAsS%29+by+Thiobacillus+ferrooxidans&rft.au=Jones%2C+R+A%3BKoval%2C+S+F%3BNesbitt%2C+H+W&rft.aulast=Jones&rft.aufirst=R&rft.date=2003-03-01&rft.volume=67&rft.issue=5&rft.spage=955&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900996-1 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 2001 Goldschmidt meeting, symposium on Advances in oxide and sulfide mineral surface chemistry N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 45 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acidic composition; Acidithiobacillus; Acidithiobacillus ferrooxidans; alteration; applications; arsenides; arsenopyrite; Bacillus; bacteria; biogenic processes; chemical reactions; experimental studies; ferric iron; geochemistry; iron; laboratory studies; leaching; metals; mineral surface; mineral-water interface; oxidation; pH; phosphate ion; pollution; precipitation; SEM data; spectra; sulfides; surface reactions; tailings; Thiobacillus; X-ray photoelectron spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)00996-1 ER - TY - JOUR T1 - High mass measurement accuracy determination for proteomics using multivariate regression fitting: application to electrospray ionization time-of-flight mass spectrometry. AN - 85235788; pmid-12585471 AB - Important factors that limit the mass measurement accuracy from a mass spectrometer are related to (1) the type of mass analyzer used and (2) the data processing/calibration methods used to obtain mass values from the raw data. Here, two data processing methods are presented that correct for systematic deviations when the mass of ions is measured using a time-of-flight (TOF) mass spectrometer. The first fitting method is one where m/z values are obtained from fitting peak distributions using double Gaussian functions. A second calibration method takes into account the slight nonlinear response of the TOF analyzer in addition to the drift in the calibration over time. Using multivariate regression, both of these two effects can be corrected for using a single calibration formula. Achievable performance was evaluated with a trypsin digestion of serum albumin and proteins from the organism D. radiodurans that was analyzed using gradient reversed-phase liquid chromatography combined with an electrospray ionization orthogonal TOF mass spectrometer. The root-mean-square deviation between the theoretical and experimental m/z values for serum albumin tryptic peptides was found to be 8 ppm using the double Gaussian-multivariate method compared to 29 ppm determined using linear calibration and normal peak centroiding. An advantage of the methods presented here is that no calibrant compounds need to be added to the mobile phase, thereby avoiding interference effects and signal suppression of analytes. JF - Analytical Chemistry AU - Strittmatter, Eric F AU - Rodriguez, Nestor AU - Smith, Richard D AD - Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, MSIN: K8-98, Richland, Washington 99352, USA. PY - 2003 SP - 460 EP - 468 VL - 75 IS - 3 SN - 0003-2700, 0003-2700 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85235788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry&rft.atitle=High+mass+measurement+accuracy+determination+for+proteomics+using+multivariate+regression+fitting%3A+application+to+electrospray+ionization+time-of-flight+mass+spectrometry.&rft.au=Strittmatter%2C+Eric+F%3BRodriguez%2C+Nestor%3BSmith%2C+Richard+D&rft.aulast=Strittmatter&rft.aufirst=Eric&rft.date=2003-02-01&rft.volume=75&rft.issue=3&rft.spage=460&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry&rft.issn=00032700&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - An automated method of MFRSR calibration for aerosol optical depth analysis with application to an Asian dust outbreak over the United States AN - 51766509; 2005-007987 AB - Over the past decade, networks of Multifilter Rotating Shadowband Radiometers (MFRSR) and automated sun photometers have been established in the United States to monitor aerosol properties. The MFRSR alternately measures diffuse and global irradiance in six narrow spectral bands and a broadband channel of the solar spectrum, from which the direct normal component for each may be inferred. Its 500-nm channel mimics sun photometer measurements and thus is a source of aerosol optical depth information. Automatic data reduction methods are needed because of the high volume of data produced by the MFRSR. In addition, these instruments are often not calibrated for absolute irradiance and must be periodically calibrated for optical depth analysis using the Langley method. This process involves extrapolation to the signal the MFRSR would measure at the top of the atmosphere (I (sub lambda 0) ). Here, an automated clear-sky identification algorithm is used to screen MFRSR 500-nm measurements for suitable calibration data. The clear-sky MFRSR measurements are subsequently used to construct a set of calibration Langley plots from which a mean I (sub lambda 0) is computed. This calibration I (sub lambda 0) may be subsequently applied to any MFRSR 500-nm measurement within the calibration period to retrieve aerosol optical depth. This method is tested on a 2-month MFRSR dataset from the Table Mountain NOAA Surface Radiation Budget Network (SURFRAD) station near Boulder, Colorado. The resultant I (sub lambda 0) is applied to two Asian dust-related high air pollution episodes that occurred within the calibration period on 13 and 17 April 2001. Computed aerosol optical depths for 17 April range from approximately 0.30 to 0.40, and those for 13 April vary from background levels to >0.30. Errors in these retrievals were estimated to range from + or -0.01 to + or -0.05, depending on the solar zenith angle. The calculations are compared with independent MFRSR-based aerosol optical depth retrievals at the Pawnee National Grasslands, 85 km to the northeast of Table Mountain, and to sun-photometer-derived aerosol optical depths at the National Renewable Energy Laboratory in Golden, Colorado, 50 km to the south. Both the Table Mountain and Golden stations are situated within a few kilometers of the Front Range of the Rocky Mountains, whereas the Pawnee station is on the eastern plains of Colorado. Time series of aerosol optical depth from Pawnee and Table Mountain stations compare well for 13 April when, according to the Naval Aerosol Analysis and Prediction System, an upper-level Asian dust plume enveloped most of Colorado. Aerosol optical depths at the Golden station for that event are generally greater than those at Table Mountain and Pawnee, possibly because of the proximity of Golden to Denver's urban aerosol plume. The dust over Colorado was primarily surface based on 17 April. On that day, aerosol optical depths at Table Mountain and Golden are similar but are 2 times the magnitude of those at Pawnee. This difference is attributed to meteorological conditions that favored air stagnation in the planetary boundary layer along the Front Range, and a west-to-east gradient in aerosol concentration. The magnitude and timing of the aerosol optical depth measurements at Table Mountain for these events are found to be consistent with independent measurements made at NASA Aerosol Robotic Network (AERONET) stations at Missoula, Montana, and at Bondville, Illinois. JF - Journal of Applied Meteorology AU - Augustine, John A AU - Cornwall, Christopher R AU - Hodges, Gary B AU - Long, Charles N AU - Medina, Carlos I AU - DeLuisi, John J Y1 - 2003/02// PY - 2003 DA - February 2003 SP - 266 EP - 278 PB - American Meteorological Society, Boston, MA VL - 42 IS - 2 SN - 0894-8763, 0894-8763 KW - United States KW - sediment transport KW - clastic sediments KW - pollution KW - calibration KW - environmental analysis KW - measurement KW - spatial distribution KW - optical properties KW - atmospheric transport KW - Western U.S. KW - dust KW - sediments KW - aerosols KW - air KW - wind transport KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51766509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Applied+Meteorology&rft.atitle=An+automated+method+of+MFRSR+calibration+for+aerosol+optical+depth+analysis+with+application+to+an+Asian+dust+outbreak+over+the+United+States&rft.au=Augustine%2C+John+A%3BCornwall%2C+Christopher+R%3BHodges%2C+Gary+B%3BLong%2C+Charles+N%3BMedina%2C+Carlos+I%3BDeLuisi%2C+John+J&rft.aulast=Augustine&rft.aufirst=John&rft.date=2003-02-01&rft.volume=42&rft.issue=2&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ L2 - http://journals.ametsoc.org/loi/apme LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 26 N1 - PubXState - MA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-15 N1 - CODEN - JAMOAX N1 - SubjectsTermNotLitGenreText - aerosols; air; atmospheric transport; calibration; clastic sediments; dust; environmental analysis; measurement; optical properties; pollution; sediment transport; sediments; spatial distribution; United States; Western U.S.; wind transport ER - TY - JOUR T1 - Carbon tetrachloride flow behavior in unsaturated Hanford caliche material; an investigation of residual nonaqueous phase liquids AN - 51164702; 2003-054120 AB - At many contaminated sites, nonaqueous phase liquids (NAPLs) persist in the vadose zone for long periods of time. This occurs because the permeability of the NAPL becomes negligible at some saturation and downward movement ceases, resulting in residual NAPL. To obtain data that can be used to study the development of a residual NAPL saturation and to test corresponding models, a detailed transient experiment was conducted in a 170 cm long by 90 cm high by 5.5 cm wide flow cell. Fluid saturation measurements were obtained with a dual-energy radiation system. The experimental conditions reflected those at the Hanford Site in Washington State, where an estimated 363 to 580 m3 of carbon tetrachloride (CCl4) was disposed to the subsurface. A key subsurface feature at the Hanford Site is a sloped Plio-Pleistocene caliche layer, which was reproduced in the experiment as a sloped lens in a medium-grained, uniform, sand matrix. The caliche contains considerable amounts of CaCO3 and may have fluid wettability properties other than strongly water wet. A total of 800 mL of CCl4 was injected into the experimental domain at a rate of 0.5 mL min (super -1) from a small source area located at the surface. After apparent static conditions were obtained with respect to CCl4 redistribution, saturation measurements indicated that all of the dense nonaqueous phase liquids (DNAPL) that had initially moved into the caliche remained in this layer. Water was subsequently applied to the surface at a constant rate over the full length of the caliche layer to study CCl4 displacement as a result of changing water saturations. Water saturation in the caliche layer rose to as high as 0.91 during water infiltration. Results show that 25% of the DNAPL present in the caliche migrated from this layer as a consequence of water infiltration, while 75% remained in the caliche layer. The experimental results could not be reproduced with numerical multifluid flow simulations based on common constitutive theory. This indicates that improvements in constitutive theory may be needed to accurately model air-DNAPL-water flow behavior. JF - Vadose Zone Journal AU - Oostrom, M AU - Lenhard, R J Y1 - 2003/02// PY - 2003 DA - February 2003 SP - 25 EP - 33 PB - Soil Science Society of America, Madison, WI VL - 2 IS - 1 KW - United States KW - soils KW - chlorinated hydrocarbons KW - experimental studies KW - caliche KW - Washington KW - pollutants KW - data processing KW - unsaturated zone KW - pollution KW - Hanford Site KW - porous materials KW - physical models KW - carbon tetrachloride KW - nonaqueous phase liquids KW - organic compounds KW - sedimentary rocks KW - movement KW - digital simulation KW - White Bluffs KW - halogenated hydrocarbons KW - carbonate rocks KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51164702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Carbon+tetrachloride+flow+behavior+in+unsaturated+Hanford+caliche+material%3B+an+investigation+of+residual+nonaqueous+phase+liquids&rft.au=Oostrom%2C+M%3BLenhard%2C+R+J&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2003-02-01&rft.volume=2&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 31 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on April 2, 2003 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - caliche; carbon tetrachloride; carbonate rocks; chlorinated hydrocarbons; data processing; digital simulation; experimental studies; halogenated hydrocarbons; Hanford Site; movement; nonaqueous phase liquids; organic compounds; physical models; pollutants; pollution; porous materials; sedimentary rocks; soils; United States; unsaturated zone; Washington; White Bluffs ER - TY - JOUR T1 - Two case studies of highly insoluble plutonium inhalation with implications for bioassay. AN - 75743262; 14526943 AB - Two well characterised Pu inhalation cases show some remarkable similarities between substantially different types of Pu oxide. The circumstances of exposure, therapy, bioassay data, chemical solubility studies and dosimetry associated with these cases suggest that highly insoluble Pu may be more common than previously thought, and can pose significant challenges to bioassay programmes. JF - Radiation protection dosimetry AU - Carbaugh, E H AU - La Bone, T R AD - Pacific Northwest National Laboratory, PO Box 999, MSIN P7-01, Richland, WA 99352, USA. gene.carbaugh@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 133 EP - 138 VL - 105 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Air Pollutants, Radioactive KW - 0 KW - Oxides KW - americium oxide KW - 12005-67-3 KW - Plutonium KW - 53023GN24M KW - Americium KW - VW92PHU2UY KW - Index Medicus KW - Oxides -- classification KW - Radiation Dosage KW - Computer Simulation KW - Oxides -- analysis KW - Body Burden KW - Humans KW - Oxides -- urine KW - Oxides -- pharmacokinetics KW - Liver -- metabolism KW - Metabolic Clearance Rate KW - Organ Specificity KW - Air Pollutants, Radioactive -- urine KW - Lung -- metabolism KW - Bone and Bones -- metabolism KW - Feces -- chemistry KW - Models, Biological KW - Air Pollutants, Radioactive -- analysis KW - Thorax -- metabolism KW - Plutonium -- pharmacokinetics KW - Americium -- urine KW - Plutonium -- classification KW - Inhalation Exposure -- analysis KW - Plutonium -- urine KW - Americium -- analysis KW - Radiometry -- methods KW - Plutonium -- analysis KW - Occupational Exposure -- analysis KW - Americium -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75743262?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Two+case+studies+of+highly+insoluble+plutonium+inhalation+with+implications+for+bioassay.&rft.au=Carbaugh%2C+E+H%3BLa+Bone%2C+T+R&rft.aulast=Carbaugh&rft.aufirst=E&rft.date=2003-01-01&rft.volume=105&rft.issue=1-4&rft.spage=133&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-12-05 N1 - Date created - 2003-10-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Minimum detectable dose as a measure of bioassay programme capability. AN - 75739530; 14526994 AB - This paper suggests that minimum detectable dose (MDD) be used to describe the capability of bioassay programmes for which intakes are expected to be rare. This allows expression of the capability in units that correspond directly to primary dose limits. The concept uses the well established analytical statistic minimum detectable amount (MDA) as the starting point, and assumes MDA detection at a prescribed time post-intake. The resulting dose can then be used as an indication of the adequacy or capability of the programme for demonstrating compliance with the performance criteria. MDDs can be readily tabulated or plotted to demonstrate the effectiveness of different types of monitoring programmes. The inclusion of cost factors for bioassay measurements can allow optimisation. JF - Radiation protection dosimetry AU - Carbaugh, E H AD - Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, USA. gene.carbaugh@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 391 EP - 394 VL - 105 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Cesium Radioisotopes KW - 0 KW - Radioactive Pollutants KW - Radioisotopes KW - Strontium Radioisotopes KW - Index Medicus KW - Cesium Radioisotopes -- analysis KW - Sensitivity and Specificity KW - Radiation Dosage KW - Computer Simulation KW - Cesium Radioisotopes -- pharmacokinetics KW - Reproducibility of Results KW - Body Burden KW - Humans KW - Radioactive Pollutants -- analysis KW - Strontium Radioisotopes -- pharmacokinetics KW - Radioactive Pollutants -- pharmacokinetics KW - Strontium Radioisotopes -- analysis KW - Inhalation Exposure -- analysis KW - North Carolina KW - Whole-Body Counting KW - Radioisotopes -- pharmacokinetics KW - Radioisotopes -- analysis KW - Radiometry -- methods KW - Models, Biological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75739530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Minimum+detectable+dose+as+a+measure+of+bioassay+programme+capability.&rft.au=Carbaugh%2C+E+H&rft.aulast=Carbaugh&rft.aufirst=E&rft.date=2003-01-01&rft.volume=105&rft.issue=1-4&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-12-05 N1 - Date created - 2003-10-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Assessments for high dose radionuclide therapy treatment planning. AN - 75735398; 14527031 AB - Advances in the biotechnology of cell specific targeting of cancer and the increased number of clinical trials involving treatment of cancer patients with radiolabelled antibodies, peptides and similar delivery vehicles have led to an increase in the number of high dose radionuclide therapy procedures. Optimised radionuclide therapy for cancer treatment is based on the concept of absorbed dose to the dose limiting normal organ or tissue. The limiting normal tissue is often the red marrow, but it may sometimes be the lungs, liver, intestinal tract or kidneys. Appropriate treatment planning requires assessment of radiation dose to several internal organs and tissues, and usually involves biodistribution studies in the patient using a tracer amount of radionuclide bound to the targeting agent and imaged at sequential timepoints using a planar gamma camera. Time-activity curves are developed from the imaging data for the major organ tissues of concern, for the whole body and sometimes for selected tumours. Patient specific factors often require that dose estimates be customised for each patient. In the United States, the Food and Drug Administration regulates the experimental use of investigational new drugs and requires 'reasonable calculation of radiation absorbed dose to the whole body and to critical organs' using the methods prescribed by the Medical Internal Radiation Dose (MIRD) Committee of the Society of Nuclear Medicine. Review of high dose studies shows that some are conducted with minimal dosimetry, that the marrow dose is difficult to establish and is subject to large uncertainties. Despite the general availability of software, internal dosimetry methods often seem to be inconsistent from one clinical centre to another. JF - Radiation protection dosimetry AU - Fisher, D R AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352, USA. dr.fisher@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 581 EP - 586 VL - 105 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Radioisotopes KW - 0 KW - Index Medicus KW - Humans KW - Bone Marrow -- metabolism KW - Guidelines as Topic KW - Bone Marrow -- radiation effects KW - Radiation Dosage KW - Radiotherapy Planning, Computer-Assisted -- trends KW - Radiometry -- trends KW - Radiotherapy Planning, Computer-Assisted -- methods KW - Radioisotopes -- therapeutic use KW - Radiotherapy, High-Energy -- methods KW - Radioisotopes -- pharmacokinetics KW - Radiometry -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75735398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Assessments+for+high+dose+radionuclide+therapy+treatment+planning.&rft.au=Fisher%2C+D+R&rft.aulast=Fisher&rft.aufirst=D&rft.date=2003-01-01&rft.volume=105&rft.issue=1-4&rft.spage=581&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-12-05 N1 - Date created - 2003-10-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Eliminating bias in routine bioassay when there is an unknown time of intake. AN - 75733846; 14526982 AB - Routine bioassay programmes sometimes find evidence of an unsuspected intake. If there were no workplace indicators of exposure or intake, it is necessary to assume a value for the time of intake. Under these circumstances, the International Commission on Radiological Protection (ICRP) continues to recommend using the midpoint of the interval between routine bioassay measurements (ICRP Publication 78, paragraph 106). The assumption of T/2 as the time of intake, where T is the interval between bioassay measurements, represents the expectation value of the time of intake, (t), assuming uniform probability of an intake at any given time. This assumption results in a modest bias, of the expectation value of the intake, (I), that would have been received by a population of workers who had uniform probability over time of intake. This underestimation leads to a negative or positive bias in dose estimates derived in this fashion. The bias is characterised for realistic, routine urinalysis programs for Pu, U and 3H, as well as for in vivo measurements of 125I, 131I and 137Cs. Simple numerical methods are presented for correcting the bias. The bias is greatest for radionuclides whose half-lives are short with respect to the interval between bioassay measurements. Since the primary concern is estimating intake rather than time, the assumed time of intake should be chosen as t(I) rather than T/2. The ICRP should consider revising some of the tables in its Publication 78 to reflect this. JF - Radiation protection dosimetry AU - Strom, D J AD - Pacific Northwest National Laboratory, Richland, WA, USA. strom@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 339 EP - 340 VL - 105 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Radioisotopes KW - 0 KW - Index Medicus KW - Sensitivity and Specificity KW - Radiation Dosage KW - Computer Simulation KW - Reproducibility of Results KW - Inhalation Exposure -- analysis KW - Humans KW - Quality Control KW - Air Pollution, Radioactive -- analysis KW - Algorithms KW - Radioisotopes -- pharmacokinetics KW - Models, Statistical KW - Radioisotopes -- urine KW - Radioisotopes -- analysis KW - Radiometry -- methods KW - Models, Biological KW - Radiometry -- standards KW - Occupational Exposure -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/75733846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Eliminating+bias+in+routine+bioassay+when+there+is+an+unknown+time+of+intake.&rft.au=Strom%2C+D+J&rft.aulast=Strom&rft.aufirst=D&rft.date=2003-01-01&rft.volume=105&rft.issue=1-4&rft.spage=339&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-12-05 N1 - Date created - 2003-10-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - BOOK T1 - The wonders of magnetism. AN - 72888294; 12483660 AB - In this acceptance address for the Bioelectromagnetics Society's 2001 d'Arsonval Award, Dr. Tenforde reviews the highlights of the nonionizing field aspects of his research and scientific service career. These are focused in four areas: (a). development and application of microelectrophoretic methods to probe the surface chemistry of normal and cancerous cells; (b). research on the biophysical mechanisms of interaction and the dosimetry of static and extremely low frequency magnetic fields; (c). application of extremely high intensity magnetic fields in several spectroscopic methods for probing the detailed structures of large biological macromolecules; and (d). development of national and international guidelines for the exposure of workers and members of the general public to electromagnetic fields with frequencies spanning the entire nonionizing electromagnetic spectrum. JF - Bioelectromagnetics AU - Tenforde, Thomas S Y1 - 2003/01// PY - 2003 DA - January 2003 SP - 9 EP - 11 KW - DNA KW - 9007-49-2 KW - Index Medicus KW - Tenforde KW - United States KW - Societies, Scientific -- history KW - Molecular Structure KW - History, 20th Century KW - Societies, Scientific -- organization & administration KW - Occupational Exposure -- history KW - Magnetic Resonance Spectroscopy -- history KW - Occupational Exposure -- standards KW - Research -- history KW - Humans KW - Electromagnetic Phenomena -- history KW - DNA -- radiation effects KW - Electromagnetic Fields -- adverse effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72888294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/TOXLINE&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=unknown&rft.jtitle=&rft.atitle=&rft.au=Tenforde%2C+Thomas+S&rft.aulast=Tenforde&rft.aufirst=Thomas&rft.date=2003-01-01&rft.volume=&rft.issue=&rft.spage=3&rft.isbn=&rft.btitle=The+wonders+of+magnetism.&rft.title=The+wonders+of+magnetism.&rft.issn=01978462&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-06-20 N1 - Date created - 2002-12-16 N1 - Date revised - 2017-02-17 N1 - People - Tenforde N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - The formation of Sr silicates at low temperature and the solubility product of tobermorite-like Sr (sub 5) Si (sub 6) O (sub 16) (OH) (sub 2) 5H (sub 2) O AN - 52010347; 2003-024302 AB - The aqueous phase interaction of divalent Sr with silicate-containing solutions was studied over a range of pH values, dissolved silica, and Sr concentrations, and extending to basic solution (0.2 M NaOH) at room temperature (22-23 degrees C). Formation of an amorphous Sr silicate phase of variable composition was observed, beginning at approximately pH 10. The precipitate became quasi-crystalline at higher base concentrations and with aging time. The phase that formed at high base concentration (beginning at pH 11.5-12.0) was identified by total chemical analysis. X-ray diffraction, and thermogravimetric analysis to have a chemical formula of Sr (sub 5) Si (sub 6) O (sub 16) (OH) (sub 2) .5H (sub 2) O, with a tobermorite-like structure. The Sr (sub 5) Si (sub 6) O (sub 16) (OH) (sub 2) .5H (sub 2) O phase has not been previously reported. Scanning electron microscopy (SEM) analysis of alcohol-washed precipitates showed a fine granular structure similar to Ca silicate hydrates. De-ionized water washing of the precipitates resulted in dissolution and growth of surface phases with the classical "sheaf of wheat" nucleation structure previously identified only for Ca silicate hydrates. Solubility studies of the precipitates, which extended to 286 days of equilibration, yielded an estimate of the solubility product of quasicrystalline, tobermorite-like Sr silicate of Log K = -38.0+ or -0.7 for the overall reaction, 5H (sub 2) O + Sr (sub 5) Si (sub 6) O (sub 16) (OH) (sub 2) . 5H (sub 2) O = 5Sr (super 2+) + 6H (sub 3) SiO (super -) (sub 4) + 4OH (super -) . The first estimate of the association constant for the species SrH (sub 2) SiO (sub 4) (aq) of Log K = 2.86 was also made. JF - American Mineralogist AU - Felmy, Andrew R AU - Mason, Marvin J AU - Gassman, Paul L AU - McCready, David E Y1 - 2003/01// PY - 2003 DA - January 2003 SP - 73 EP - 79 PB - Mineralogical Society of America, Washington, DC VL - 88 IS - 1 SN - 0003-004X, 0003-004X KW - silicates KW - Sr-90 KW - alkaline earth metals KW - isotopes KW - tobermorite KW - aqueous solutions KW - solubility KW - temperature KW - radioactive waste KW - radioactive isotopes KW - phase equilibria KW - metals KW - low temperature KW - thermodynamic properties KW - strontium KW - pH KW - chain silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52010347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=The+formation+of+Sr+silicates+at+low+temperature+and+the+solubility+product+of+tobermorite-like+Sr+%28sub+5%29+Si+%28sub+6%29+O+%28sub+16%29+%28OH%29+%28sub+2%29+5H+%28sub+2%29+O&rft.au=Felmy%2C+Andrew+R%3BMason%2C+Marvin+J%3BGassman%2C+Paul+L%3BMcCready%2C+David+E&rft.aulast=Felmy&rft.aufirst=Andrew&rft.date=2003-01-01&rft.volume=88&rft.issue=1&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 29 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aqueous solutions; chain silicates; isotopes; low temperature; metals; pH; phase equilibria; radioactive isotopes; radioactive waste; silicates; solubility; Sr-90; strontium; temperature; thermodynamic properties; tobermorite ER - TY - BOOK T1 - Hanford; a conversation about nuclear waste and cleanup AN - 51910698; 2004-001357 JF - Hanford; a conversation about nuclear waste and cleanup AU - Gephart, Roy E Y1 - 2003 PY - 2003 DA - 2003 PB - Battelle Press, Columbus, OH SN - 1574771345 KW - United States KW - hazardous waste KW - aquifer vulnerability KW - radioactivity KW - regulations KW - waste disposal sites KW - ecosystems KW - production KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - decontamination KW - Columbia River basin KW - nuclear weapons KW - ecology KW - discharge KW - solid waste KW - soils KW - protection KW - Washington KW - monitoring KW - public awareness KW - Hanford Site KW - decision-making KW - preventive measures KW - aquifers KW - risk assessment KW - nuclear facilities KW - waste disposal KW - underground disposal KW - public health KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51910698?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Gephart%2C+Roy+E&rft.aulast=Gephart&rft.aufirst=Roy&rft.date=2003-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1574771345&rft.btitle=Hanford%3B+a+conversation+about+nuclear+waste+and+cleanup&rft.title=Hanford%3B+a+conversation+about+nuclear+waste+and+cleanup&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 788 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Analysis of hydrogeologic conceptual model and parameter uncertainty AN - 51897339; 2004-011146 AB - A systematic methodology for assessing hydrogeologic conceptual model, parameter, and scenario uncertainties is being developed to support technical reviews of environmental assessments related to decommissioning of nuclear facilities. The first major task being undertaken is to produce a coupled parameter and conceptual model uncertainty assessment methodology. This task is based on previous studies that have primarily dealt individually with these two types of uncertainties. Conceptual model uncertainty analysis is based on the existence of alternative conceptual models that are generated using a set of clearly stated guidelines targeted at the needs of NRC staff. Parameter uncertainty analysis makes use of generic site characterization data as well as site-specific characterization and monitoring data to evaluate parameter uncertainty in each of the alternative conceptual models. Propagation of parameter uncertainty will be carried out through implementation of a general stochastic model of groundwater flow and transport in the saturated and unsaturated zones. Evaluation of prediction uncertainty will make use of Bayesian model averaging and visualization of model results. The goal of this study is to develop a practical tool to quantify uncertainties in the conceptual model and parameters identified in performance assessments. JF - Symposium on Groundwater quality modeling and management under uncertainty AU - Meyer, Philip D AU - Nicholson, Thomas J A2 - Mishra, Srikanta Y1 - 2003 PY - 2003 DA - 2003 PB - American Society of Civil Engineers, Reston, VA SN - 0784406960 KW - hydrology KW - Bayesian analysis KW - decommissioning KW - statistical analysis KW - prediction KW - pollution KW - fluid dynamics KW - models KW - transport KW - stochastic processes KW - sensitivity analysis KW - theoretical models KW - risk assessment KW - nuclear facilities KW - uncertainty KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51897339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Meyer%2C+Philip+D%3BNicholson%2C+Thomas+J&rft.aulast=Meyer&rft.aufirst=Philip&rft.date=2003-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0784406960&rft.btitle=Analysis+of+hydrogeologic+conceptual+model+and+parameter+uncertainty&rft.title=Analysis+of+hydrogeologic+conceptual+model+and+parameter+uncertainty&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Symposium on Groundwater quality modeling and management under uncertainty N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 38 N1 - PubXState - VA N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The Columbia River flood basalts and the Yakima fold belt AN - 51869486; 2004-027603 JF - GSA Field Guide AU - Reidel, Stephen P AU - Martin, Barton S AU - Petcovic, Heather L A2 - Swanson, Terry W. Y1 - 2003 PY - 2003 DA - 2003 SP - 87 EP - 105 PB - Geological Society of America, Boulder, CO VL - 4 KW - United States KW - flood basalts KW - volcanic rocks KW - igneous rocks KW - field trips KW - road log KW - Cenozoic KW - volcanism KW - folds KW - basalts KW - Pasco Basin KW - tectonics KW - anticlines KW - faults KW - Washington KW - shear zones KW - textures KW - Columbia River Basalt Group KW - Hanford Site KW - deformation KW - Miocene KW - Tertiary KW - boreholes KW - Neogene KW - brecciation KW - Yakima fold belt KW - 16:Structural geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51869486?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=GSA+Field+Guide&rft.atitle=The+Columbia+River+flood+basalts+and+the+Yakima+fold+belt&rft.au=Reidel%2C+Stephen+P%3BMartin%2C+Barton+S%3BPetcovic%2C+Heather+L&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2003-01-01&rft.volume=4&rft.issue=&rft.spage=87&rft.isbn=0813700043&rft.btitle=&rft.title=GSA+Field+Guide&rft.issn=&rft_id=info:doi/ L2 - http://fieldguides.gsapubs.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 58 N1 - PubXState - CO N1 - Document feature - illus. incl. sects., strat. col., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - #05176 N1 - SubjectsTermNotLitGenreText - anticlines; basalts; boreholes; brecciation; Cenozoic; Columbia River Basalt Group; deformation; faults; field trips; flood basalts; folds; Hanford Site; igneous rocks; Miocene; Neogene; Pasco Basin; road log; shear zones; tectonics; Tertiary; textures; United States; volcanic rocks; volcanism; Washington; Yakima fold belt ER - TY - JOUR T1 - Computational studies of mineral-water interfaces AN - 51849665; 2004-038643 JF - CMS Workshop Lectures AU - Rustad, J R AU - Dixon, D A A2 - Kubicki, J. D. A2 - Bleam, W. F. Y1 - 2003 PY - 2003 DA - 2003 SP - 26 EP - 100 PB - Clay Minerals Society, Evergreen, CO VL - 12 SN - 1521-740X, 1521-740X KW - silicates KW - experimental studies KW - empirical analysis KW - complexing KW - clay mineralogy KW - mineral-water interface KW - hydrolysis KW - bonding KW - electrochemical properties KW - clay minerals KW - hydroxides KW - chemical reactions KW - metals KW - chemical properties KW - oxides KW - sheet silicates KW - molecular dynamics KW - crystal chemistry KW - geochemistry KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51849665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=CMS+Workshop+Lectures&rft.atitle=Computational+studies+of+mineral-water+interfaces&rft.au=Rustad%2C+J+R%3BDixon%2C+D+A&rft.aulast=Rustad&rft.aufirst=J&rft.date=2003-01-01&rft.volume=12&rft.issue=&rft.spage=26&rft.isbn=1881208117&rft.btitle=&rft.title=CMS+Workshop+Lectures&rft.issn=1521740X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 184 N1 - PubXState - CO N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bonding; chemical properties; chemical reactions; clay mineralogy; clay minerals; complexing; crystal chemistry; electrochemical properties; empirical analysis; experimental studies; geochemistry; hydrolysis; hydroxides; metals; mineral-water interface; molecular dynamics; oxides; sheet silicates; silicates ER - TY - BOOK T1 - Biosphere-atmosphere interactions AN - 51841333; 2004-042966 JF - Atmospheric chemistry in a changing world; an integration and synthesis of a decade of tropospheric chemistry research AU - Scholes, Mary C AU - Matrai, Patricia A AU - Andreae, Meinrat O AU - Smith, Keith A AU - Manning, Martin R AU - Artaxo, Paulo AU - Barrie, Leonard A AU - Bates, Timothy S AU - Butler, James H AU - Ciccioli, Paolo AU - Cieslik, Stanislaw A AU - Delmas, Robert J AU - Dentener, Frank J AU - Duce, Robert A AU - Erickson, David J, III AU - Galbally, Ian E AU - Guenther, Alex B AU - Jaenicke, Ruprecht AU - Jaehne, Bernd AU - Kettle, Anthony J AU - Kiene, Ronald P AU - Lacaux, Jean-Pierre AU - Liss, Peter S AU - Malin, G AU - Matson, Pamela A AU - Mosier, Arvin R AU - Neue, Heinz-Ulrich AU - Paerl, Hans W AU - Platt, Ulrich F AU - Quinn, Patricia K AU - Seiler, Wolfgang AU - Weiss, Ray F A2 - Brasseur, Guy P. A2 - Prinn, Ronald G. A2 - Pszenny, Alexander A. Y1 - 2003 PY - 2003 DA - 2003 PB - Springer-Verlag, Berlin SN - 3540430504 KW - soils KW - land cover KW - biomass KW - human activity KW - atmosphere KW - ecosystems KW - vegetation KW - climate change KW - fires KW - biosphere KW - ecology KW - chemical composition KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51841333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Scholes%2C+Mary+C%3BMatrai%2C+Patricia+A%3BAndreae%2C+Meinrat+O%3BSmith%2C+Keith+A%3BManning%2C+Martin+R%3BArtaxo%2C+Paulo%3BBarrie%2C+Leonard+A%3BBates%2C+Timothy+S%3BButler%2C+James+H%3BCiccioli%2C+Paolo%3BCieslik%2C+Stanislaw+A%3BDelmas%2C+Robert+J%3BDentener%2C+Frank+J%3BDuce%2C+Robert+A%3BErickson%2C+David+J%2C+III%3BGalbally%2C+Ian+E%3BGuenther%2C+Alex+B%3BJaenicke%2C+Ruprecht%3BJaehne%2C+Bernd%3BKettle%2C+Anthony+J%3BKiene%2C+Ronald+P%3BLacaux%2C+Jean-Pierre%3BLiss%2C+Peter+S%3BMalin%2C+G%3BMatson%2C+Pamela+A%3BMosier%2C+Arvin+R%3BNeue%2C+Heinz-Ulrich%3BPaerl%2C+Hans+W%3BPlatt%2C+Ulrich+F%3BQuinn%2C+Patricia+K%3BSeiler%2C+Wolfgang%3BWeiss%2C+Ray+F&rft.aulast=Scholes&rft.aufirst=Mary&rft.date=2003-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=3540430504&rft.btitle=Biosphere-atmosphere+interactions&rft.title=Biosphere-atmosphere+interactions&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Document feature - illus. incl. 6 tables, sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Changes in the chemical composition of the atmosphere and potential impacts AN - 51840409; 2004-042965 AB - Changes in the chemical composition of the atmosphere and potential impacts on future atmospheric changes are discussed. They include sections on atmospheric chemistry and life on Earth; environmental issues and atmospheric chemistry; greenhouse gases, aerosols, and climate forcing; acidification and eutrophication; enhanced tropospheric ozone; depletion of stratospheric ozone; transport of toxic substances and nutrients; policy considerations; the atmosphere in the Earth system; global atmospheric chemistry and the IGAC (International Global Atmospheric Chemistry) project; past changes in atmospheric chemical composition; changing atmospheric composition during the upper Quaternary; causes of atmospheric changes; and impacts of changes in atmospheric composition. Ice cores from Greenland and Antarctica are compared. (mte) JF - Atmospheric chemistry in a changing world; an integration and synthesis of a decade of tropospheric chemistry research AU - Wuebbles, Donald J AU - Brasseur, Guy P AU - Rodhe, Henning AU - Barrie, Leonard A AU - Crutzen, Paul J AU - Delmas, Robert J AU - Jacob, Daniel J AU - Kolb, Charles E AU - Pszenny, Alexander A AU - Steffen, Will AU - Weiss, Ray F A2 - Brasseur, Guy P. A2 - Prinn, Ronald G. A2 - Pszenny, Alexander A. Y1 - 2003 PY - 2003 DA - 2003 PB - Springer-Verlag, Berlin SN - 3540430504 KW - public policy KW - Greenland ice sheet KW - global change KW - troposphere KW - paleoclimatology KW - hydrosphere KW - climate change KW - Cenozoic KW - Greenland KW - ozone KW - stratosphere KW - greenhouse effect KW - chemical composition KW - ice cores KW - Quaternary KW - Arctic region KW - atmosphere KW - nutrients KW - Antarctic ice sheet KW - Antarctica KW - biosphere KW - eutrophication KW - aerosols KW - acidification KW - 12:Stratigraphy KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51840409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Wuebbles%2C+Donald+J%3BBrasseur%2C+Guy+P%3BRodhe%2C+Henning%3BBarrie%2C+Leonard+A%3BCrutzen%2C+Paul+J%3BDelmas%2C+Robert+J%3BJacob%2C+Daniel+J%3BKolb%2C+Charles+E%3BPszenny%2C+Alexander+A%3BSteffen%2C+Will%3BWeiss%2C+Ray+F&rft.aulast=Wuebbles&rft.aufirst=Donald&rft.date=2003-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=3540430504&rft.btitle=Changes+in+the+chemical+composition+of+the+atmosphere+and+potential+impacts&rft.title=Changes+in+the+chemical+composition+of+the+atmosphere+and+potential+impacts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - An integrated view of the causes and impacts of atmospheric changes AN - 51837892; 2004-042967 JF - Atmospheric chemistry in a changing world; an integration and synthesis of a decade of tropospheric chemistry research AU - Brasseur, Guy P AU - Artaxo, Paulo AU - Barrie, Leonard A AU - Delmas, Robert J AU - Galbally, Ian E AU - Hao, Wei Min AU - Harriss, Robert C AU - Isaksen, Ivar S A AU - Jacob, Daniel J AU - Kolb, Charles E AU - Prather, Michael J AU - Rodhe, Henning AU - Schwela, Dieter AU - Steffen, Will AU - Wuebbles, Donald J A2 - Brasseur, Guy P. A2 - Prinn, Ronald G. A2 - Pszenny, Alexander A. Y1 - 2003 PY - 2003 DA - 2003 PB - Springer-Verlag, Berlin SN - 3540430504 KW - ozone KW - human activity KW - biosphere KW - agriculture KW - atmosphere KW - global change KW - chemical composition KW - climate change KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51837892?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Brasseur%2C+Guy+P%3BArtaxo%2C+Paulo%3BBarrie%2C+Leonard+A%3BDelmas%2C+Robert+J%3BGalbally%2C+Ian+E%3BHao%2C+Wei+Min%3BHarriss%2C+Robert+C%3BIsaksen%2C+Ivar+S+A%3BJacob%2C+Daniel+J%3BKolb%2C+Charles+E%3BPrather%2C+Michael+J%3BRodhe%2C+Henning%3BSchwela%2C+Dieter%3BSteffen%2C+Will%3BWuebbles%2C+Donald+J&rft.aulast=Brasseur&rft.aufirst=Guy&rft.date=2003-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=3540430504&rft.btitle=An+integrated+view+of+the+causes+and+impacts+of+atmospheric+changes&rft.title=An+integrated+view+of+the+causes+and+impacts+of+atmospheric+changes&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Radiation effects in zircon AN - 51830681; 2004-043039 JF - Reviews in Mineralogy and Geochemistry AU - Ewing, Rodney C AU - Meldrum, Alkiviathes AU - Wang, Lu Min AU - Weber, William J AU - Corrales, L Rene A2 - Hanchar, John M. A2 - Hoskin, Paul W. O. Y1 - 2003 PY - 2003 DA - 2003 SP - 387 EP - 425 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 53 SN - 1529-6466, 1529-6466 KW - silicates KW - density KW - data processing KW - crystal structure KW - recrystallization KW - NMR spectra KW - X-ray diffraction analysis KW - digital simulation KW - orthosilicates KW - X-ray analysis KW - spectra KW - zircon group KW - high-resolution methods KW - numerical models KW - radiation damage KW - diffractograms KW - zircon KW - mechanical properties KW - defects KW - TEM data KW - nesosilicates KW - computer programs KW - physical properties KW - optical properties KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51830681?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Radiation+effects+in+zircon&rft.au=Ewing%2C+Rodney+C%3BMeldrum%2C+Alkiviathes%3BWang%2C+Lu+Min%3BWeber%2C+William+J%3BCorrales%2C+L+Rene&rft.aulast=Ewing&rft.aufirst=Rodney&rft.date=2003-01-01&rft.volume=53&rft.issue=&rft.spage=387&rft.isbn=0939950670X&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 155 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - computer programs; crystal structure; data processing; defects; density; diffractograms; digital simulation; high-resolution methods; mechanical properties; nesosilicates; NMR spectra; numerical models; optical properties; orthosilicates; physical properties; radiation damage; recrystallization; silicates; spectra; TEM data; X-ray analysis; X-ray diffraction analysis; zircon; zircon group ER - TY - JOUR T1 - Numerical modeling to assess DNAPL movement and removal at the Scenic Site Operable Unit near Baton Rouge, Louisiana; a case study AN - 51826568; 2004-056143 AB - Detailed three-dimensional multifluid flow modeling was conducted to assess movement and removal of dense nonaqueous phase liquid (DNAPL) movement at a waste site in Louisiana. The site's subsurface consists of several permeable zones separated by (semi) confining clays. In the upper subsurface, the two major permeable zones are, starting with the uppermost zone, the +40- and +20-MSL (mean sea level) zones. At the site, a total of 23,000 m (super 3) of DNAPL was emplaced in an open waste pit between 1962 and 1974. In this period, considerable amounts of DNAPL moved into the subsurface. By 1974 a portion of the DNAPL was removed and the waste site was filled with low-permeability materials and closed. During this process, some of the DNAPL was mixed with the fill material and remained at the site. Between 1974 and 2000, no additional DNAPL recovery activities were implemented. In an effort to reduce the DNAPL source, organic liquid has been pumped through a timed-pumping scheme from a total of 7 wells starting in calendar year 2000. The recovery wells are screened in the lower part of the waste fill material. In site investigations, DNAPL has been encountered in the +40-MSL but not in the +20-MSL zone. The following questions are addressed: (1) Where has the DNAPL migrated vertically and laterally? (2) How much further is DNAPL expected to move in the next century? (3) How effective is the current DNAPL pumping in reducing the DNAPL source? The computational domains for the simulations were derived from 3-D interpolations of borehole logs using a geologic interpretation software (Earthvision (super TM) ). The simulation results show that DNAPL primarily entered the subsurface in the period 1962-1974, when the waste site was operational. After 1974, the infiltration rates dropped dramatically as a result of the infilling of the waste pit. The simulation results indicate that DNAPL moved from the pit into the underlying +40-MSL zone through two contact zones at the west side of the pit. Lateral movement of the DNAPL body has been relatively slow as a result of the high viscosity and the rapidly decreasing driving force after the waste pit was filled in. For all simulations, lateral movement of DNAPL in the period 1962-2001 is predicted to be less than 60 m from the two contact areas, while additional movement in the next century is expected to be less than 30 m. No DNAPL is predicted to enter the +20-MSL zone, which agrees with site information. The simulations also clearly demonstrate the minimal effect of the current pumping scheme on source reduction and DNAPL movement. JF - International Journal of Phytoremediation AU - Oostrom, M AU - Thorne, P D AU - White, M D AU - Truex, M J AU - Wietsma, T W Y1 - 2003 PY - 2003 DA - 2003 SP - 901 EP - 926 PB - CRC Press, Boca Raton, FL VL - 12 IS - 6 SN - 1522-6514, 1522-6514 KW - United States KW - STOMP KW - contaminant plumes KW - spatial data KW - data processing KW - preferential flow KW - dense nonaqueous phase liquids KW - remediation KW - East Baton Rouge Parish Louisiana KW - visualization KW - sensitivity analysis KW - Baton Rouge Louisiana KW - EarthVision KW - Louisiana KW - interpretation KW - mobility KW - numerical models KW - three-dimensional models KW - pollutants KW - pollution KW - nonaqueous phase liquids KW - models KW - computer programs KW - case studies KW - organic compounds KW - liquid waste KW - infiltration KW - steady-state processes KW - multiphase flow KW - risk assessment KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51826568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Phytoremediation&rft.atitle=Numerical+modeling+to+assess+DNAPL+movement+and+removal+at+the+Scenic+Site+Operable+Unit+near+Baton+Rouge%2C+Louisiana%3B+a+case+study&rft.au=Oostrom%2C+M%3BThorne%2C+P+D%3BWhite%2C+M+D%3BTruex%2C+M+J%3BWietsma%2C+T+W&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2003-01-01&rft.volume=12&rft.issue=6&rft.spage=901&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Phytoremediation&rft.issn=15226514&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713610150 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 18 N1 - PubXState - FL N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Baton Rouge Louisiana; case studies; computer programs; contaminant plumes; data processing; dense nonaqueous phase liquids; EarthVision; East Baton Rouge Parish Louisiana; infiltration; interpretation; liquid waste; Louisiana; mobility; models; multiphase flow; nonaqueous phase liquids; numerical models; organic compounds; pollutants; pollution; preferential flow; remediation; risk assessment; sensitivity analysis; spatial data; steady-state processes; STOMP; three-dimensional models; United States; visualization; waste disposal ER - TY - JOUR T1 - Natural gas storage in basalt aquifers of the Columbia Basin; a guide to site characterization AN - 51795520; 2004-075427 JF - GasTips AU - Reidel, Stephen P AU - Johnson, Vernon G AU - Spane, Frank A Y1 - 2003 PY - 2003 DA - 2003 SP - 25 EP - 29 PB - Hart Publications for Gas Research Institute, Potomac, MD VL - 9 IS - 3 KW - United States KW - Washington KW - volcanic rocks KW - underground storage KW - engineering properties KW - site exploration KW - natural gas KW - igneous rocks KW - Columbia River Basalt Group KW - petroleum KW - gas storage KW - Miocene KW - ground water KW - aquifers KW - Cenozoic KW - Tertiary KW - lava KW - Neogene KW - Columbia River basin KW - basalts KW - underground installations KW - Pasco Basin KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51795520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=GasTips&rft.atitle=Natural+gas+storage+in+basalt+aquifers+of+the+Columbia+Basin%3B+a+guide+to+site+characterization&rft.au=Reidel%2C+Stephen+P%3BJohnson%2C+Vernon+G%3BSpane%2C+Frank+A&rft.aulast=Reidel&rft.aufirst=Stephen&rft.date=2003-01-01&rft.volume=9&rft.issue=3&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=GasTips&rft.issn=&rft_id=info:doi/ L2 - http://www.netl.doe.gov/scngo/Reference%20Shelf/GasTIPS/GasTIPS.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 6 N1 - PubXState - MD N1 - Document feature - illus. incl. sect., block diag., geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #04558 N1 - SubjectsTermNotLitGenreText - aquifers; basalts; Cenozoic; Columbia River Basalt Group; Columbia River basin; engineering properties; gas storage; ground water; igneous rocks; lava; Miocene; natural gas; Neogene; Pasco Basin; petroleum; site exploration; Tertiary; underground installations; underground storage; United States; volcanic rocks; Washington ER - TY - JOUR T1 - High efficiency epithermal neutron detectors AN - 51437335; 2007-053918 JF - Abstracts - AAPG Mid-Continent Section Meeting AU - Bliss, Mary AU - Jordan, David V AU - Thesen, Howard AU - Pitts, W Karl AU - Sliger, William A AU - Knopf, Michael A AU - Todd, Lindsay C AU - Anonymous Y1 - 2003 PY - 2003 DA - 2003 EP - unpaginated PB - American Association of Petroleum Geologists, Mid-Continent Section, Tulsa, OK VL - 2003 KW - detection KW - neutrons KW - neutron methods KW - geophysical methods KW - instruments KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51437335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+-+AAPG+Mid-Continent+Section+Meeting&rft.atitle=High+efficiency+epithermal+neutron+detectors&rft.au=Bliss%2C+Mary%3BJordan%2C+David+V%3BThesen%2C+Howard%3BPitts%2C+W+Karl%3BSliger%2C+William+A%3BKnopf%2C+Michael+A%3BTodd%2C+Lindsay+C%3BAnonymous&rft.aulast=Bliss&rft.aufirst=Mary&rft.date=2003-01-01&rft.volume=2003&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+-+AAPG+Mid-Continent+Section+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.net/abstracts/pdf/2003/midcon/abs/ndx_bliss.pdf LA - English DB - GeoRef N1 - Conference title - AAPG Mid-Continent Section meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - OK N1 - SuppNotes - Accessed on Aug. 18, 2006 N1 - Last updated - 2012-06-07 N1 - CODEN - #06711 N1 - SubjectsTermNotLitGenreText - detection; geophysical methods; instruments; neutron methods; neutrons ER - TY - JOUR T1 - Impacts of the Columbia River Hydroelectric System on Main-Stem Habitats of Fall Chinook Salmon AN - 20839637; 5689753 AB - Salmonid habitats in main-stem reaches of the Columbia and Snake Rivers have changed dramatically during the past 60 years because of hydroelectric development and operation. Only about 13% and 58% of riverine habitats in the Columbia and Snake Rivers, respectively, remain. Most riverine habitat is found in the upper Snake River; however, it is upstream of Hells Canyon Dam and not accessible to anadromous salmonids. We determined that approximately 661 and 805 km of the Columbia and Snake rivers, respectively, were once used by fall chinook salmon Oncorhynchus tshawytscha for spawning. Fall chinook salmon currently use only about 85 km of the main-stem Columbia River and 163 km of the main-stem Snake River for spawning. We used a geomorphic model to identify three river reaches downstream of present migration barriers with high potential for restoration of riverine processes: the Columbia River upstream of John Day Dam, the Columbia-Snake-Yakima River confluence, and the lower Snake River upstream of Little Goose Dam. Our analysis substantiated the assertion that historic spawning areas for fall chinook salmon occurred primarily within wide alluvial floodplains, which were once common in the main-stem Columbia and Snake rivers. These areas possessed more unconsolidated sediment and more bars and islands and had lower water surface slopes than did less extensively used areas. Because flows in the main stem are now highly regulated, the predevelopment alluvial river ecosystem is not expected to be restored simply by operational modification of one or more dams. Establishing more normative flow regimes: specifically, sustained peak flows for scouring: is essential to restoring the functional characteristics of existing, altered habitats. Restoring production of fall chinook salmon to any of these reaches also requires that population genetics and viability of potential seed populations (i.e. from tributaries, tailrace spawning areas, and hatcheries) be considered. JF - North American Journal of Fisheries Management AU - Dauble, D D AU - Hanrahan, T P AU - Geist AU - Parsley, MJ AD - Pacific Northwest National Laboratory, Post Office Box 999, Richland, Washington 99352, USA Y1 - 2003///0, PY - 2003 DA - 0, 2003 SP - 641 EP - 659 PB - American Fisheries Society, 5410 Grosvenor Ln. Ste. 110 Bethesda MD 20814-2199 USA VL - 23 IS - 3 SN - 0275-5947, 0275-5947 KW - Chinook salmon KW - Ecology Abstracts; Aqualine Abstracts; ASFA 1: Biological Sciences & Living Resources; Sustainability Science Abstracts; Water Resources Abstracts; Oceanic Abstracts; ASFA Aquaculture Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Barriers KW - Anadromous species KW - Hydroelectric Plants KW - Man-induced effects KW - Cultured organisms KW - Freshwater KW - Habitat selection KW - Oncorhynchus tshawytscha KW - Migration KW - River fisheries KW - Population genetics KW - River Flow KW - Slopes KW - Commercial species KW - USA, Washington, Snake R., Little Goose Dam KW - Salmon KW - Rivers KW - USA, Snake R. KW - Spawning grounds KW - Habitat KW - snakes KW - population genetics KW - Aquatic Habitats KW - salmon KW - Hydroelectric power plants KW - Environment management KW - Surface water KW - Fish Hatcheries KW - USA, Columbia R. KW - Habitat improvement (physical) KW - flood plains KW - spawning KW - Models KW - upstream KW - Islands KW - Dams KW - USA, Columbia R., John Day Dam KW - Spawning KW - canyons KW - Salmon fisheries KW - Flood plains KW - Long-term changes KW - Nature conservation KW - SW 4070:Ecological impact of water development KW - O 4090:Conservation and Environmental Protection KW - M3 1010:Issues in Sustainable Development KW - Q3 08582:Fish culture KW - Q1 08604:Stock assessment and management KW - AQ 00002:Water Quality KW - Q5 08521:Mechanical and natural changes KW - D 04060:Management and Conservation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20839637?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Impacts+of+the+Columbia+River+Hydroelectric+System+on+Main-Stem+Habitats+of+Fall+Chinook+Salmon&rft.au=Dauble%2C+D+D%3BHanrahan%2C+T+P%3BGeist%3BParsley%2C+MJ&rft.aulast=Dauble&rft.aufirst=D&rft.date=2003-01-01&rft.volume=23&rft.issue=3&rft.spage=641&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Rivers; Barriers; Anadromous species; Spawning grounds; Man-induced effects; Habitat improvement (physical); Cultured organisms; Habitat selection; River fisheries; Population genetics; Salmon fisheries; Flood plains; Dams; Long-term changes; Nature conservation; Hydroelectric power plants; Commercial species; Environment management; Islands; Spawning; Habitat; Migration; Models; population genetics; upstream; Surface water; salmon; flood plains; canyons; spawning; snakes; Salmon; Aquatic Habitats; Fish Hatcheries; Hydroelectric Plants; River Flow; Slopes; Oncorhynchus tshawytscha; USA, Snake R.; USA, Columbia R.; USA, Columbia R., John Day Dam; USA, Washington, Snake R., Little Goose Dam; Freshwater ER - TY - JOUR T1 - Measuring aerosols generated inside armoured vehicles perforated by depleted uranium ammunition AN - 19218611; 5799081 AB - In response to questions raised after the Gulf War about the health significance of exposure to depleted uranium (DU), the US Department of Defense initiated a study designed to provide an improved scientific basis for assessment of possible health effects on soldiers in vehicles struck by these munitions. As part of this study, a series of DU penetrators were fired at an Abrams tank and a Bradley fighting vehicle, and the aerosols generated by vehicle perforation were collected and characterised. A robust sampling system was designed to collect aerosols in this difficult environment and monitor continuously the sampler flow rates. The aerosol samplers selected for these tests included filter cassettes, cascade impactors, a five-stage cyclone and a moving filter. Sampler redundancy was an integral part of the sampling system to offset losses from fragment damage. Wipe surveys and deposition trays collected removable deposited particulate matter. Interior aerosols were analysed for uranium concentration and particle size distribution as a function of time. They were also analysed for uranium oxide phases, particle morphology and dissolution in vitro. These data, currently under independent peer review, will provide input for future prospective and retrospective dose and health risk assessments of inhaled or ingested DU aerosols. This paper briefly discusses the target vehicles, firing trajectories, aerosol samplers and instrumentation control systems, and the types of analyses conducted on the samples. JF - Radiation Protection Dosimetry AU - Parkhurst, MA AD - Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, USA, maryann.parkhurst@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 167 EP - 170 VL - 105 IS - 1-4 SN - 0144-8420, 0144-8420 KW - depleted uranium KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Risk assessment KW - Military KW - Occupational exposure KW - Aerosols KW - Weapons KW - Radioisotopes KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19218611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Protection+Dosimetry&rft.atitle=Measuring+aerosols+generated+inside+armoured+vehicles+perforated+by+depleted+uranium+ammunition&rft.au=Parkhurst%2C+MA&rft.aulast=Parkhurst&rft.aufirst=MA&rft.date=2003-01-01&rft.volume=105&rft.issue=1-4&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=Radiation+Protection+Dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Radioisotopes; Occupational exposure; Risk assessment; Aerosols; Military; Weapons ER - TY - JOUR T1 - High-resolution super(1)H NMR spectroscopy in a live mouse subjected to 1.5 Hz magic angle spinning AN - 19204907; 5764627 AB - It is demonstrated that the resolution of the super(1)H NMR metabolite spectrum in a live mouse can be significantly enhanced by an ultraslow magic angle spinning of the animal combined with a modified phase-corrected magic angle turning (PHORMAT) pulse sequence. Proton NMR spectra were measured of the torso and the top part of the belly of a female BALBc mouse in a 2 T field while spinning the animal at a speed of 1.5 Hz. It was found that even in this relatively low field, with PHORMAT an isotropic spectrum is obtained with line widths that are a factor of 4.6 smaller than those obtained in a stationary mouse. It is concluded that in vivo PHORMAT has the potential to significantly increase the utility of super(1)H NMR spectroscopy for biochemical and biomedical animal research. JF - Magnetic Resonance in Medicine AU - Wind, R A AU - Hu, J Z AU - Rommereim, D N AD - Pacific Northwest National Laboratory, Richland, Washington, robert.wind@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 1113 EP - 1119 PB - John Wiley & Sons, Ltd., Baffins Lane Chichester W. Sussex PO19 1UD UK, [mailto:customer@wiley.co.uk], [URL:http://www.wiley.com/] VL - 50 IS - 6 SN - 0740-3194, 0740-3194 KW - BALB/c mice KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - Magnetic resonance imaging KW - N.M.R. KW - Lasers KW - W4 150:Medical Imaging KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19204907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Magnetic+Resonance+in+Medicine&rft.atitle=High-resolution+super%281%29H+NMR+spectroscopy+in+a+live+mouse+subjected+to+1.5+Hz+magic+angle+spinning&rft.au=Wind%2C+R+A%3BHu%2C+J+Z%3BRommereim%2C+D+N&rft.aulast=Wind&rft.aufirst=R&rft.date=2003-01-01&rft.volume=50&rft.issue=6&rft.spage=1113&rft.isbn=&rft.btitle=&rft.title=Magnetic+Resonance+in+Medicine&rft.issn=07403194&rft_id=info:doi/10.1002%2Fmrm.10650 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Lasers; N.M.R.; Magnetic resonance imaging DO - http://dx.doi.org/10.1002/mrm.10650 ER - TY - JOUR T1 - Evaluation of Physiologically Based Models of Pregnancy and Lactation for Their Application in Children's Health Risk Assessments AN - 18761787; 5637809 AB - In today's scientific and regulatory climates, an increased emphasis is placed on the potential health impacts for children exposed either in utero or by nursing to drugs of abuse, pharmaceuticals, and industrial or consumer chemicals. As a result, there is a renewed interest in the development and application of biologically based computational models that can be used to predict the dosimetry (or ultimately response) in a developing embryo, fetus, or newborn. However, fundamental differences between animal and human development can create many unique challenges. For example, unlike models designed for adults, biologically based models of pre- and postnatal development must deal with rapidly changing growth dynamics (maternal, embryonic, fetal, and neonatal), changes in the state of differentiation of developing tissues, uniquely expressed or uniquely functioning signal transduction or enzymatic pathways, and unusual routes of exposure (e.g., maternal-mediated placental transfer and lactation). In cases where these challenges are overcome or addressed, biological modeling will likely prove useful in assessments geared toward children's health, given the contributions that this approach has already made in cancer and non-cancer human health risk assessments. Therefore, the purpose of this review is to critically evaluate the current state of the art in physiologically based pharmacokinetic (PBPK) and pharmacodynamic (PD) modeling of the developing embryo, fetus, or neonate and to recommend potential steps that could be taken to improve their use in children's health risk assessments. The intent was not to recommend improvements to individual models per se, but to identify areas of research that could move the entire field forward. This analysis includes a brief summary of current risk assessment practices for developmental toxicity, with an overview of developmental biology as it relates to species-specific dosimetry. This summary should provide a general context for understanding the tension that exists in modeling between describing biological proceses in exquisite detail vs. the simplifications that are necessary due to lack of data (or through a sensitivity analysis, determined to be of little impact) to develop individual PBPK or PD models. For each of the previously published models covered in this review, a description of the underlying assumptions and model structures as well as the data and methods used in model development and validation are highlighted. Although several of the models attempted to describe target tissues in the developing embryo, fetus, or neonate of laboratory animals, extrapolations to humans were largely limited to maternal blood or milk concentrations. Future areas of research therefore are recommended to extend the already significant progress that has been made in this field and perhaps address many of the technical, policy, and ethical issues surrounding various approaches for decreasing the uncertainty in extrapolating from animal models to human pregnancies or neonatal exposures. JF - Critical Reviews in Toxicology AU - Corley, R A AU - Mast, T J AU - Carney, E W AU - Rogers, J M AU - Daston, G P AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., PO Box 999, MSIN P7-59, Richland, WA 99352, USA, rick.corley@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 137 EP - 211 VL - 33 IS - 2 SN - 1040-8444, 1040-8444 KW - man KW - pharmacodynamics KW - pharmacokinetics KW - Toxicology Abstracts KW - X 24250:Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18761787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Critical+Reviews+in+Toxicology&rft.atitle=Evaluation+of+Physiologically+Based+Models+of+Pregnancy+and+Lactation+for+Their+Application+in+Children%27s+Health+Risk+Assessments&rft.au=Corley%2C+R+A%3BMast%2C+T+J%3BCarney%2C+E+W%3BRogers%2C+J+M%3BDaston%2C+G+P&rft.aulast=Corley&rft.aufirst=R&rft.date=2003-01-01&rft.volume=33&rft.issue=2&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Critical+Reviews+in+Toxicology&rft.issn=10408444&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - A Computational Model for the Identification of Biochemical Pathways in the Krebs Cycle AN - 18754445; 5614758 AB - We have applied an algorithmic methodology which provably decomposes any complex network into a complete family of principal subcircuits to study the minimal circuits that describe the Krebs cycle. Every operational behavior that the network is capable of exhibiting can be represented by some combination of these principal subcircuits and this computational decomposition is linearly efficient. We have developed a computational model that can be applied to biochemical reaction systems which accurately renders pathways of such reactions via directed hypergraphs (Petri nets). We have applied the model to the citric acid cycle (Krebs cycle). The Krebs cycle, which oxidizes the acetyl group of acetyl CoA to CO sub(2) and reduces NAD and FAD to NADH and FADH sub(2), is a complex interacting set of nine subreaction networks. The Krebs cycle was selected because of its familiarity to the biological community and because it exhibits enough complexity to be interesting in order to introduce this novel analytic approach. This study validates the algorithmic methodology for the identification of significant biochemical signaling subcircuits, based solely upon the mathematical model and not upon prior biological knowledge. The utility of the algebraic-combinatorial model for identifying the complete set of biochemical subcircuits as a data set is demonstrated for this important metabolic process. JF - Journal of Computational Biology AU - Oliveira, J S AU - Bailey, C G AU - Jones-Oliveira, J B AU - Dixon, DA AU - Gull, D W AU - Chandler, M L AD - International Technology Assessments Group, National Security and Technology Division, National Security Directorate, Pacific Northwest National Laboratory, P.O. Box 999, Msin K8-41, Richland, WA 99352, USA, jjo@pnl.gov Y1 - 2003 PY - 2003 DA - 2003 SP - 57 EP - 82 VL - 10 IS - 1 SN - 1066-5277, 1066-5277 KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18754445?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Computational+Biology&rft.atitle=A+Computational+Model+for+the+Identification+of+Biochemical+Pathways+in+the+Krebs+Cycle&rft.au=Oliveira%2C+J+S%3BBailey%2C+C+G%3BJones-Oliveira%2C+J+B%3BDixon%2C+DA%3BGull%2C+D+W%3BChandler%2C+M+L&rft.aulast=Oliveira&rft.aufirst=J&rft.date=2003-01-01&rft.volume=10&rft.issue=1&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Journal+of+Computational+Biology&rft.issn=10665277&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Coupled reactive mass transport and fluid flow: Issues in model verification AN - 18618770; 5526468 AB - Model verification and validation are both important steps in the development of reactive transport models. In this paper, a distinction is made between verification and validation, and the focus is on codifying the issues of verification for a numerical, reactive transport flow model. First, the conceptual basis of model verification is reviewed, which shows that verification should be understood as a first step in model development, and be followed by a protocol that assures that the model accurately represents system behavior. Second, commonly used procedures and methods of model verification are presented. In the third part of this paper, an intercomparison of models is used to demonstrate that model verification can be performed despite differences in hydrogeochemical transport code formulations. Results of an example simulation of transport are presented in which the numerical model is tested against other hydrogeochemical codes. Different kinetic formulations between solid and aqueous phases used among numerical models complicates model verification. This test problem involves uranium transport under conditions of varying pH and oxidation potential, with reversible precipitation of calcium uranate and coffinite. Results between the different hydrogeochemical transport codes show differences in oxidation potentials, but similarities in mineral assemblages and aqueous transport patterns. Because model verification can be further complicated by differences in the approach for solving redox problems, a comparison of a fugacity approach (based on O[sub]2 partial pressure) to both the external approach (based on hypothetical electron activity) and effective internal approach (based on conservation of electrons) is performed. The comparison demonstrates that the oxygen fugacity approach produces different redox potentials and mineral assemblages than both the effective internal and external approaches. JF - Advances in Water Resources AU - Freedman, V L AU - Ibaraki, M AD - Pacific Northwest National Laboratory, P.O. Box 999 MSIN K9-36, Richland, WA 99352, USA, vicky.freedman@pnl.gov Y1 - 2003/01// PY - 2003 DA - January 2003 SP - 117 EP - 127 VL - 26 IS - 1 SN - 0309-1708, 0309-1708 KW - Water Resources Abstracts; Aqualine Abstracts KW - Case study KW - Mathematical Models KW - Case Studies KW - Groundwater flow KW - Geochemistry KW - Calibration KW - Model Testing KW - Model Studies KW - Solutes KW - Comparative studies KW - Calibrations KW - Solute Transport KW - Comparison Studies KW - Chemical Reactions KW - Groundwater Movement KW - AQ 00001:Water Resources and Supplies KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18618770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Coupled+reactive+mass+transport+and+fluid+flow%3A+Issues+in+model+verification&rft.au=Freedman%2C+V+L%3BIbaraki%2C+M&rft.aulast=Freedman&rft.aufirst=V&rft.date=2003-01-01&rft.volume=26&rft.issue=1&rft.spage=117&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2FS0309-1708%2802%2900106-9 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Case study; Comparative studies; Solutes; Geochemistry; Groundwater flow; Calibration; Mathematical Models; Calibrations; Comparison Studies; Solute Transport; Case Studies; Chemical Reactions; Model Testing; Groundwater Movement; Model Studies DO - http://dx.doi.org/10.1016/S0309-1708(02)00106-9 ER - TY - JOUR T1 - Spectroelectrochemical Sensing Based on Multimode Selectivity Simultaneously Achievable in a Single Device. 11. Design and Evaluation of a Small Portable Sensor for the Determination of Ferrocyanide in Hanford Waste Samples AN - 16167267; 5820641 AB - A portable spectroelectrochemical sensor has been designed, evaluated, and demonstrated on a complex sample of radioactive waste. The sensor consisted of a black delrin sample compartment with a total internal sample volume of 800 mu L, attached to an indium tin oxide coated glass multiple internal reflection optical element. Detection was by total internal reflection of light from a blue light emitting diode source. After a 10 min uptake for each standard, the sensor showed a linear response in absorbance change for 5 x 10 super(-5) to 5 x 10 super(-3) M ferrocyanide with electrochemical modulation by scanning at 20 mV/s from -0.30 V to +0.55 V vs a Ag/AgCl reference electrode. Due to the complex nature of Hanford radioactive tank waste samples containing ferrocyanide, a standard addition method was developed for analysis. The spectroelectrochemical sensor determined a concentration of 9.2 mM ferrocyanide for U-Plant-2 simulant solution containing 9.38 mM ferrocyanide that was prepared according to Hanford process flowsheets. A radioactive tank waste sample from Hanford Tank 241-C-112 was determined to be 1.0 mM in ferrocyanide using the spectroelectrochemical sensor. A value for the ferrocyanide concentration in the sample of 0.61 mM was determined by FTIR spectroscopy. JF - Environmental Science & Technology AU - Stegemiller, M L AU - Heineman, W R AU - Seliskar, C J AU - Ridgway, TH AU - Bryan, SA AU - Hubler, T AU - Sell, R L AD - Pacific Northwest National Laboratory, Battelle Boulevard, P.O. Box 999, MS P7-25, Richland, Washington 99352, USA, william.heineman@uc.edu Y1 - 2003/01/01/ PY - 2003 DA - 2003 Jan 01 SP - 123 EP - 130 VL - 37 IS - 1 SN - 0013-936X, 0013-936X KW - ferrocyanide KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts KW - Environmental monitoring KW - Cyanides KW - Electrical equipment KW - Sensors KW - Instruments KW - Wastes KW - Radioactive wastes KW - Sampling instruments KW - USA, Washington, Hanford Site KW - Optical analysis KW - Cyanide KW - Indium KW - USA, Washington, Hanford KW - Iron compounds KW - Uptake KW - Electrochemistry KW - P 8000:RADIATION KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16167267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Spectroelectrochemical+Sensing+Based+on+Multimode+Selectivity+Simultaneously+Achievable+in+a+Single+Device.+11.+Design+and+Evaluation+of+a+Small+Portable+Sensor+for+the+Determination+of+Ferrocyanide+in+Hanford+Waste+Samples&rft.au=Stegemiller%2C+M+L%3BHeineman%2C+W+R%3BSeliskar%2C+C+J%3BRidgway%2C+TH%3BBryan%2C+SA%3BHubler%2C+T%3BSell%2C+R+L&rft.aulast=Stegemiller&rft.aufirst=M&rft.date=2003-01-01&rft.volume=37&rft.issue=1&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes020601l LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2005-01-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Environmental monitoring; Cyanides; Sensors; Electrical equipment; Instruments; Indium; Radioactive wastes; Iron compounds; Wastes; Uptake; Electrochemistry; Optical analysis; Cyanide; Sampling instruments; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1021/es020601l ER - TY - JOUR T1 - Solution structure of the yeast ubiquitin-like modifier protein Hub1 AN - 1034813867; 17027065 AB - abbreviationsUBL, ubiquitin-like modifier; Saccharomyces cerevisiae, S. cerevisiae; Eschericia coli, E. coli; NMR, nuclear magnetic resonance; NOE, nuclear Overhauser enhancement; NOESY, NOE spectroscopy; TOCSY, total correlated spectroscopy. JF - Journal of Structural and Functional Genomics AU - Ramelot, Theresa A AU - Cort, John R AU - Yee, Adelinda A AU - Semesi, Anthony AU - Edwards, Aled M AU - Arrowsmith, Cheryl H AU - Kennedy, Michael A AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington, 99352, USA Y1 - 2003/01// PY - 2003 DA - Jan 2003 SP - 25 EP - 30 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 4 IS - 1 SN - 1345-711X, 1345-711X KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts; Genetics Abstracts KW - N.M.R. KW - Spectroscopy KW - Structure-function relationships KW - Escherichia coli KW - Saccharomyces cerevisiae KW - K 03330:Biochemistry KW - W 30910:Imaging KW - G 07780:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1034813867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Structural+and+Functional+Genomics&rft.atitle=Solution+structure+of+the+yeast+ubiquitin-like+modifier+protein+Hub1&rft.au=Ramelot%2C+Theresa+A%3BCort%2C+John+R%3BYee%2C+Adelinda+A%3BSemesi%2C+Anthony%3BEdwards%2C+Aled+M%3BArrowsmith%2C+Cheryl+H%3BKennedy%2C+Michael+A&rft.aulast=Ramelot&rft.aufirst=Theresa&rft.date=2003-01-01&rft.volume=4&rft.issue=1&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Journal+of+Structural+and+Functional+Genomics&rft.issn=1345711X&rft_id=info:doi/10.1023%2FA%3A1024674220425 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-08-01 N1 - Last updated - 2013-02-22 N1 - SubjectsTermNotLitGenreText - Structure-function relationships; N.M.R.; Spectroscopy; Escherichia coli; Saccharomyces cerevisiae DO - http://dx.doi.org/10.1023/A:1024674220425 ER - TY - JOUR T1 - Reduction kinetics of Fe(III), Co(III), U(VI), Cr(VI), and Tc(VII) in cultures of dissimilatory metal-reducing bacteria. AN - 72172919; 12378605 AB - The reduction kinetics of Fe(III)citrate, Fe(III)NTA, Co(III)EDTA-, U(VI)O(2) (2+), Cr(VI)O(4) (2-), and Tc(VII)O(4) (-) were studied in cultures of dissimilatory metal reducing bacteria (DMRB): Shewanella alga strain BrY, Shewanella putrefaciens strain CN32, Shewanella oneidensis strain MR-1, and Geobacter metallireducens strain GS-15. Reduction rates were metal specific with the following rate trend: Fe(III)citrate > or = Fe(III)NTA > Co(III)EDTA- >> UO(2)(2+) > CrO(4)(2-) > TcO(4)(-), except for CrO(4) (2-) when H(2) was used as electron donor. The metal reduction rates were also electron donor dependent with faster rates observed for H(2) than lactate- for all Shewanella species despite higher initial lactate (10 mM) than H2 (0.48 mM). The bioreduction of CrO(4) (2-) was anomalously slower compared to the other metals with H(2) as an electron donor relative to lactate and reduction ceased before all the CrO(4)(2-) had been reduced. Transmission electron microscopic (TEM) and energy-dispersive spectroscopic (EDS) analyses performed on selected solids at experiment termination found precipitates of reduced U and Tc in association with the outer cell membrane and in the periplasm of the bacteria. The kinetic rates of metal reduction were correlated with the precipitation of reduced metal phases and their causal relationship discussed. The experimental rate data were well described by a Monod kinetic expression with respect to the electron acceptor for all metals except CrO(4)(2-), for which the Monod model had to be modified to account for incomplete reduction. However, the Monod models became statistically over-parameterized, resulting in large uncertainties of their parameters. A first-order approximation to the Monod model also effectively described the experimental results, but the rate coefficients exhibited far less uncertainty. The more precise rate coefficients of the first-order model provided a better means than the Monod parameters, to quantitatively compare the reduction rates between metals, electron donors, and DMRB species. JF - Biotechnology and bioengineering AU - Liu, Chongxuan AU - Gorby, Yuri A AU - Zachara, John M AU - Fredrickson, Jim K AU - Brown, Christopher F AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. chongxuan.liu@pnl.gov Y1 - 2002/12/20/ PY - 2002 DA - 2002 Dec 20 SP - 637 EP - 649 VL - 80 IS - 6 SN - 0006-3592, 0006-3592 KW - Metals KW - 0 KW - Chromium KW - 0R0008Q3JB KW - Lactic Acid KW - 33X04XA5AT KW - Cobalt KW - 3G0H8C9362 KW - Uranium KW - 4OC371KSTK KW - Technetium KW - 7440-26-8 KW - Hydrogen KW - 7YNJ3PO35Z KW - Iron KW - E1UOL152H7 KW - Index Medicus KW - Technetium -- metabolism KW - Computer Simulation KW - Shewanella putrefaciens -- classification KW - Shewanella putrefaciens -- ultrastructure KW - Chromium -- metabolism KW - Iron -- metabolism KW - Oxidation-Reduction KW - Cobalt -- metabolism KW - Cells, Cultured KW - Kinetics KW - Uranium -- metabolism KW - Hydrogen -- metabolism KW - Biodegradation, Environmental KW - Shewanella putrefaciens -- metabolism KW - Species Specificity KW - Lactic Acid -- metabolism KW - Shewanella -- metabolism KW - Deltaproteobacteria -- ultrastructure KW - Shewanella -- ultrastructure KW - Deltaproteobacteria -- classification KW - Shewanella -- classification KW - Deltaproteobacteria -- metabolism KW - Metals -- metabolism KW - Models, Biological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72172919?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+and+bioengineering&rft.atitle=Reduction+kinetics+of+Fe%28III%29%2C+Co%28III%29%2C+U%28VI%29%2C+Cr%28VI%29%2C+and+Tc%28VII%29+in+cultures+of+dissimilatory+metal-reducing+bacteria.&rft.au=Liu%2C+Chongxuan%3BGorby%2C+Yuri+A%3BZachara%2C+John+M%3BFredrickson%2C+Jim+K%3BBrown%2C+Christopher+F&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2002-12-20&rft.volume=80&rft.issue=6&rft.spage=637&rft.isbn=&rft.btitle=&rft.title=Biotechnology+and+bioengineering&rft.issn=00063592&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-05-19 N1 - Date created - 2002-10-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Molecular Structure of the Outer Bacterial Membrane of Pseudomonas aeruginosa via Classical Simulation AN - 18775683; 5639825 AB - A detailed structural analysis has been performed of the outer bacterial membrane of Pseudomonas aeruginosa using a parameterized classical simulation model with modest modifications. The structural analysis of the membrane is presented and newly discovered characteristics of the membrane are discussed. Simulations indicate that the relative contribution of different ligands to calcium ion coordination varies across the membrane, while maintaining a constant average coordination number of 6.1. Water penetrates the surface of the membrane to a depth of about 30 AA. The hydration of ions and phosphate groups is shown to depend on location within the membrane. A measure of saccharide residue orientation is defined and average orientations are presented. Saccharide residues possess varying degrees of motion with a trend of greater mobility at the membrane surface. However, their motion is limited and even in the membrane outer core region the average structure appears fairly rigid over a period of 1 ns. JF - Biopolymers AU - Shroll, R M AU - Straatsma, T P AD - Computational Biochemistry, Biophysics, and Biology Group, Theory, Modeling, and Simulation, Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory Richland, WA 99352, USA, tps@pnl.gov Y1 - 2002/12/15/ PY - 2002 DA - 2002 Dec 15 SP - 395 EP - 407 VL - 65 IS - 6 SN - 0006-3525, 0006-3525 KW - Microbiology Abstracts B: Bacteriology KW - J 02721:Cell cycle, morphology and motility UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18775683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biopolymers&rft.atitle=Molecular+Structure+of+the+Outer+Bacterial+Membrane+of+Pseudomonas+aeruginosa+via+Classical+Simulation&rft.au=Shroll%2C+R+M%3BStraatsma%2C+T+P&rft.aulast=Shroll&rft.aufirst=R&rft.date=2002-12-15&rft.volume=65&rft.issue=6&rft.spage=395&rft.isbn=&rft.btitle=&rft.title=Biopolymers&rft.issn=00063525&rft_id=info:doi/10.1002%2Fbip.10279 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1002/bip.10279 ER - TY - JOUR T1 - Quantitative time-resolved monitoring of nitrate formation in sea salt particles using a CCSEM/EDX single particle analysis. AN - 72817796; 12523405 AB - Progress of the nitrate formation in individual sea salt particles was detected as a function of time using aerosol samples collected during the TexAQS 2080 experiment We demonstrate that the time-resolved collection approach coupled with the automated EDX single particle analysis made it possible to follow in detail the time evolution of sea salt particles within a diverse aerosol mixture. Using a custom built Time-Resolved Aerosol Collector (TRAC), particulate samples were taken sequentially on grid-supported 50 nm carbon films with a time resolution of 10 min between two consecutive samples. The samples were analyzed in the laboratory using Computer Controlled Scanning Electron Microscopy with Energy-Dispersed analysis of X-rays (CCSEM/EDX). Between midnight of 08/16/00 and the early morning of 08/17/00, a steady, particularly sea salt rich aerosol was observed at the measurement site, which later showed the effects of atmospheric processing. During the night of 08/17/00 the sea salt particles were almost unprocessed, having elemental composition close to that of seawater. By 12 noon, the evolving atmosphere was able to completely convert them, predominantly to sodium nitrate particles. During the next night this process had nearly stopped and fairly virgin sea salt particles appeared again. JF - Environmental science & technology AU - Laskin, Alexander AU - Iedema, Martin J AU - Cowin, James P AD - William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-88, Richland, Washington 99352, USA. Alexander.Laskin@pnl.gov Y1 - 2002/12/01/ PY - 2002 DA - 2002 Dec 01 SP - 4948 EP - 4955 VL - 36 IS - 23 SN - 0013-936X, 0013-936X KW - Aerosols KW - 0 KW - Air Pollutants KW - Nitrates KW - Sodium Chloride KW - 451W47IQ8X KW - Index Medicus KW - X-Rays KW - Particle Size KW - Microscopy, Electron, Scanning KW - Sodium Chloride -- chemistry KW - Air Pollutants -- analysis KW - Nitrates -- analysis KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72817796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Quantitative+time-resolved+monitoring+of+nitrate+formation+in+sea+salt+particles+using+a+CCSEM%2FEDX+single+particle+analysis.&rft.au=Laskin%2C+Alexander%3BIedema%2C+Martin+J%3BCowin%2C+James+P&rft.aulast=Laskin&rft.aufirst=Alexander&rft.date=2002-12-01&rft.volume=36&rft.issue=23&rft.spage=4948&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-04-09 N1 - Date created - 2003-01-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Modulation of JB6 mouse epidermal cell transformation response by the prostaglandin F2alpha receptor. AN - 72778647; 12489107 AB - Prostaglandin F(2alpha) (PGF(2alpha)) modulates clonal selection processes in the mouse skin model of carcinogenesis. In this study we investigated whether JB6 mouse epidermal cells expressed a functional PGF(2alpha) receptor (FP) coupled with a cell-transformation response. Treatment of JB6 cells with an FP agonist (fluprostenol) potently (pM-nM) increased anchorage-dependent and anchorage-independent growth. Inositol phospholipid accumulation and extracellular signal-regulated kinase (Erk) activity were increased in cells treated with FP agonists, consistent with established FP-related signal transduction. FP mRNA was detected by reverse transcription-polymerase chain reaction, and the average specific [(3)H]PGF(2alpha) binding was 8.25 +/- 0.95 fmol/mg protein. Erk activity and colony size were increased by cotreatment of JB6 cells with epidermal growth factor (EGF) and fluprostenol to a greater extent than with either treatment alone, whereas the cotreatment effect on colony number appeared to be simply additive. Collectively, our data indicated that JB6 cells expressed a functional FP coupled with transformation-related signal transduction and the regulation of clonal selection processes. Erk activity appears to be a convergence point in the EGF and FP pathways. The data raise the possibility that the FP contributes to clonal selection processes but probably plays a more important role as a response modifier. JF - Molecular carcinogenesis AU - Weber, Thomas J AU - Markillie, Lye M AU - Chrisler, William B AU - Vielhauer, George A AU - Regan, John W AD - Molecular Biosciences, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2002/12// PY - 2002 DA - December 2002 SP - 163 EP - 172 VL - 35 IS - 4 SN - 0899-1987, 0899-1987 KW - DNA Primers KW - 0 KW - Receptors, Prostaglandin KW - prostaglandin F2alpha receptor KW - Index Medicus KW - Animals KW - Base Sequence KW - Mice KW - Radioligand Assay KW - Reverse Transcriptase Polymerase Chain Reaction KW - Epidermis -- pathology KW - Receptors, Prostaglandin -- physiology KW - Cell Transformation, Neoplastic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72778647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+carcinogenesis&rft.atitle=Modulation+of+JB6+mouse+epidermal+cell+transformation+response+by+the+prostaglandin+F2alpha+receptor.&rft.au=Weber%2C+Thomas+J%3BMarkillie%2C+Lye+M%3BChrisler%2C+William+B%3BVielhauer%2C+George+A%3BRegan%2C+John+W&rft.aulast=Weber&rft.aufirst=Thomas&rft.date=2002-12-01&rft.volume=35&rft.issue=4&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Molecular+carcinogenesis&rft.issn=08991987&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-01-23 N1 - Date created - 2002-12-18 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Outer-sphere electron transfer kinetics of metal ion oxidation by molecular oxygen AN - 52026013; 2003-011146 AB - Density functional theory molecular orbital calculations and Marcus theory have been combined to assess the rates and physicochemical factors controlling the outer-sphere oxidation of divalent V, Cr, Mn, Fe, and Co aquo and hydroxo ions by O (sub 2) in homogeneous aqueous solution. Key quantities in the elementary oxidation step include the inner-sphere component of the reorganization energy, the thermodynamic driving force, and electrostatic work terms describing the interactions occurring, in this case, between the net charges on the product species. Collectively, these factors and their interplay have a large influence on the rate of the oxidation cross-reaction.An inner-sphere pathway for the self-exchange reactions and oxidation by O (sub 2) of Mn (super 2+) and Cr (super 2+) ions has been supported indirectly in this study by comparing predicted outer-sphere rates with the results of previous experiments. Likewise, an outer-sphere pathway is suggested for the similar sets of reactions involving the V, Fe, and Co ions. An assessment of the self-exchange reaction for the oxygen/superoxide couple has led to predicted rates in excellent agreement with direct measurements. Predicted rates of oxidation for the hexaquo Fe ion are also in agreement with experiment, while the predicted rates for the outer-sphere oxidation of its hydrolysis products are approximately 2 to 3 (monohydroxo) and approximately 4 (dihydroxo) orders of magnitude slower than the observed rates. This suggests an inner-sphere pathway is appropriate to explain the relatively fast rates observed for the hydrolyzed Fe species. JF - Geochimica et Cosmochimica Acta AU - Rosso, Kevin M AU - Morgan, James J Y1 - 2002/12// PY - 2002 DA - December 2002 SP - 4223 EP - 4233 PB - Pergamon, Oxford VL - 66 IS - 24 SN - 0016-7037, 0016-7037 KW - oxygen KW - cobalt KW - physicochemical properties KW - oxidation KW - hydrolysis KW - electrostatic properties KW - aqueous solutions KW - manganese KW - iron KW - theoretical studies KW - vanadium KW - chemical reactions KW - metals KW - ion exchange KW - thermodynamic properties KW - geochemistry KW - Eh KW - chromium KW - electrons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52026013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Outer-sphere+electron+transfer+kinetics+of+metal+ion+oxidation+by+molecular+oxygen&rft.au=Rosso%2C+Kevin+M%3BMorgan%2C+James+J&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2002-12-01&rft.volume=66&rft.issue=24&rft.spage=4223&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2901040-2 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 79 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; chemical reactions; chromium; cobalt; Eh; electrons; electrostatic properties; geochemistry; hydrolysis; ion exchange; iron; manganese; metals; oxidation; oxygen; physicochemical properties; theoretical studies; thermodynamic properties; vanadium DO - http://dx.doi.org/10.1016/S0016-7037(02)01040-2 ER - TY - JOUR T1 - The Worden Meteorite; a new ordinary chondrite fall from Michigan, USA AN - 52007970; 2003-024486 AB - An ordinary chondrite fall in southeast Michigan, USA (near the crossroads hamlet of Worden in northeast Washtenaw County) penetrated the garage roof of a private home on 1997 September 1. The Worden chondrite comprises silicate matrix, mineral fragments, chondrules, chondrule fragments, and opaque primary phases. Electron microprobe analyses (olivine, Fa (sub 23.9) ; orthopyroxene, Fs (sub 20.1) , En (sub 78.8) , Wo (sub 1) ) indicate diagnostic L-chondrite silicate mineral compositions. Recognizable chondrules and chondrule fragments constitute up to 42 vol%. Chondrule boundaries are readily discernable (especially where chondrules have rims of opaque material) but not sharp, and discrete plagioclase crystals are visible in the devitrified mesostasis of barred olivine chondrules; together, these characteristics suggest petrologic type 5. The spatially averaged ensemble of shock-related features (optical extinction of olivine grains, minor localized shock melt) suggests assignment of a shock stage of S3. The (super 26) Al and (super 22) Na activities are typical for an L chondrite. Worden fell near the most recent solar minimum in 1997, and the (super 22) Na production rate should have been at a level approaching the maximum levels due to solar modulation of the galactic cosmic-ray flux. The low value for the Worden (super 22) Na activity relative to those observed in chondrite falls associated with the 1969 solar maximum and 1976 solar minimum suggests a relatively small preatmospheric size. The (super 60) Co activity confirms the indication of a small body. The (super 56) Co activity was essentially zero, indicating that none of the recovered meteorite contained material exposed to solar cosmic rays. The Worden chondrite is the fourth documented fall in Michigan, and the fourth stony meteorite recovered in Michigan; all other Michigan meteorites are finds, not observed falls, and are iron meteorites. All Michigan falls to date are ordinary chondrites. The three falls prior to Worden were Allegan (H5) fell 1899; Rose City (H5, brecciated, black (dark matrix)) fell 1921; and Coleman (L6, veined (shocked); Osborn et al., 1997) fell 1994. Worden has a much lighter matrix than Rose City, and is less extensively thermally and shock metamorphosed than either Rose City (Stoffler et al., 1991) or Coleman. JF - Meteoritics & Planetary Science AU - Velbel, Michael A AU - Matty, David J AU - Wacker, John F AU - Linke, Matt P Y1 - 2002/12// PY - 2002 DA - December 2002 SP - 25 EP - 29 PB - Meteoritical Society, Fayetteville, AR VL - 37 IS - 12, Suppl. SN - 1086-9379, 1086-9379 KW - meteorites KW - Worden Meteorite KW - electron probe KW - petrology KW - mineral composition KW - stony meteorites KW - classification KW - chondrites KW - spectroscopy KW - recovery KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52007970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=The+Worden+Meteorite%3B+a+new+ordinary+chondrite+fall+from+Michigan%2C+USA&rft.au=Velbel%2C+Michael+A%3BMatty%2C+David+J%3BWacker%2C+John+F%3BLinke%2C+Matt+P&rft.aulast=Velbel&rft.aufirst=Michael&rft.date=2002-12-01&rft.volume=37&rft.issue=12%2C+Suppl.&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 14 N1 - PubXState - AR N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chondrites; classification; electron probe; meteorites; mineral composition; petrology; recovery; spectroscopy; stony meteorites; Worden Meteorite ER - TY - JOUR T1 - Processes in microbial transport in the natural subsurface AN - 51960464; 2003-054551 AB - This is a review of physical, chemical, and biological processes governing microbial transport in the saturated subsurface. We begin with the conceptual models of the biophase that underlie mathematical descriptions of these processes and the physical processes that provide the framework for recent focus on less understood processes. Novel conceptual models of the interactions between cell surface structures and other surfaces are introduced, that are more realistic than the oft-relied upon DLVO theory of colloid stability. Biological processes reviewed include active adhesion/detachment (cell partitioning between aqueous and solid phase initiated by cell metabolism) and chemotaxis (motility in response to chemical gradients). We also discuss mathematical issues involved in upscaling results from the cell scale to the Darcy and field scales. Finally, recent studies at the Oyster, Virginia field site are discussed in terms of relating laboratory results to field scale problems of bioremediation and pathogen transport in the natural subsurface. JF - Advances in Water Resources AU - Ginn, Timothy R AU - Wood, Brian D AU - Nelson, Kirk E AU - Scheibe, Timothy D AU - Murphy, Ellyn M AU - Clement, T Prabhakar A2 - Miller, C. T. A2 - Parlange, Marc B. A2 - Hassanizadeh, S. M. Y1 - 2002/12// PY - 2002 DA - December 2002 SP - 1017 EP - 1042 PB - Elsevier, Oxford VL - 25 IS - 8-12 SN - 0309-1708, 0309-1708 KW - United States KW - colloidal materials KW - Virginia KW - pollutants KW - Darcy's law KW - pollution KW - Northampton County Virginia KW - bioremediation KW - remediation KW - ground water KW - case studies KW - saturated zone KW - Oyster Virginia KW - transport KW - bacteria KW - hydrodynamics KW - coliform bacteria KW - microorganisms KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51960464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Processes+in+microbial+transport+in+the+natural+subsurface&rft.au=Ginn%2C+Timothy+R%3BWood%2C+Brian+D%3BNelson%2C+Kirk+E%3BScheibe%2C+Timothy+D%3BMurphy%2C+Ellyn+M%3BClement%2C+T+Prabhakar&rft.aulast=Ginn&rft.aufirst=Timothy&rft.date=2002-12-01&rft.volume=25&rft.issue=8-12&rft.spage=1017&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 191 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bacteria; bioremediation; case studies; coliform bacteria; colloidal materials; Darcy's law; field studies; ground water; hydrodynamics; microorganisms; Northampton County Virginia; Oyster Virginia; pollutants; pollution; remediation; saturated zone; transport; United States; Virginia ER - TY - JOUR T1 - In Situ Treatment of Chromium-Contaminated Groundwater AN - 20585914; 5652963 AB - Although not as common as solvent or fuel products, chromium contamination of groundwater is relatively widespread. The U.S. EPA has estimated that as many as 1300 sites in the United States may have groundwater contaminated with chromium - some of which date to World War II. As with most groundwater contaminants, chromium contamination is traditionally remediated with an extraction and treatment system - "pump and treat". Groundwater is extracted from the aquifer through a well network and conveyed to an aboveground treatment plant, where the chromium is removed using anion exchange or precipitated with various treatments. JF - Environmental Science & Technology AU - Fruchter, J AD - Pacific Northwest National Laboratory in Richland, WA, USA, john.fruchter@pnl.gov Y1 - 2002/12/01/ PY - 2002 DA - 2002 Dec 01 SP - 464A EP - 465A VL - 36 IS - 23 SN - 0013-936X, 0013-936X KW - Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Aquifers KW - Environmental sciences KW - Groundwater Pollution KW - Water treatment KW - Precipitation (Chemical) KW - Chemical Precipitation KW - Ion exchange KW - Water Pollution Treatment KW - Chromium KW - Anion Exchange KW - Precipitation KW - Pollution (Groundwater) KW - USA KW - Remediation KW - Groundwater pollution KW - Contaminants KW - Technology KW - M2 556.38:Groundwater Basins (556.38) KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20585914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=In+Situ+Treatment+of+Chromium-Contaminated+Groundwater&rft.au=Fruchter%2C+J&rft.aulast=Fruchter&rft.aufirst=J&rft.date=2002-12-01&rft.volume=36&rft.issue=23&rft.spage=464A&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2004-03-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Environmental sciences; Groundwater pollution; Water treatment; Chromium; Remediation; Precipitation; Contaminants; Ion exchange; Pollution (Groundwater); Precipitation (Chemical); Water Pollution Treatment; Anion Exchange; Chemical Precipitation; Groundwater Pollution; Technology; USA ER - TY - JOUR T1 - Geochemical effects on colloid-facilitated metal transport through zeolitized tuffs from the Nevada Test Site AN - 16155566; 5541123 AB - Natural colloids were generated from zeolitized tuffs from the Nevada Test Site (NTS) and the effects of colloids on the transport of a strongly sorbing metal, lead [Pb(II)], were investigated in column experiments under different geochemical conditions. Because of the high sorption affinity of Pb(II) for zeolitized tuffs, the migration of Pb(II) without colloids was strongly retarded. The presence of mobile colloids, however, enhanced the mobility of Pb(II). Approximately 75-90% of the eluted Pb(II) was transported as a colloid-associated phase. The migration of colloids was closely related to the geochemical conditions in the background solution. Immobilization of colloids increased as the ionic strength of the background electrolyte solution increased, because of double layer compaction. Remobilization of initially deposited colloids occurred when the ionic strength of the background electrolyte solution was reduced. The mobility of colloids increased with increasing pH and increasing flow rates. These results have significant implications for the migration of strongly sorbing radionuclides and other metals at nuclear testing facilities and metal-contaminated sites and are consistent with the hypothesis that inorganic contaminant migration in the subsurface is a function of geochemical conditions. JF - Environmental Geology AU - Um, W AU - Papelis, C AD - Pacific Northwest National Laboratory, P.O. Box 999, K6-81, Richland, 99352 Washington, USA, wooyong.um@pnl.gov Y1 - 2002/12// PY - 2002 DA - Dec 2002 SP - 209 EP - 218 PB - Springer-Verlag, [URL:http://link.springer.de/link/service/journals/00254/bibs/2043 1-2/20430209.htm] VL - 43 IS - 1-2 SN - 0943-0105, 0943-0105 KW - USA, Nevada KW - Pollution Abstracts; Water Resources Abstracts KW - Metals KW - Radioactive Wastes KW - Colloids KW - Path of Pollutants KW - Geochemistry KW - Nuclear weapons KW - Groundwater Pollution KW - Zeolites KW - Lead KW - Radioactivity KW - P 8000:RADIATION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16155566?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geology&rft.atitle=Geochemical+effects+on+colloid-facilitated+metal+transport+through+zeolitized+tuffs+from+the+Nevada+Test+Site&rft.au=Um%2C+W%3BPapelis%2C+C&rft.aulast=Um&rft.aufirst=W&rft.date=2002-12-01&rft.volume=43&rft.issue=1-2&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology&rft.issn=09430105&rft_id=info:doi/10.1007%2Fs00254-002-0646-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-08-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Colloids; Geochemistry; Nuclear weapons; Radioactivity; Lead; Radioactive Wastes; Metals; Path of Pollutants; Groundwater Pollution; Zeolites DO - http://dx.doi.org/10.1007/s00254-002-0646-4 ER - TY - JOUR T1 - Phosphorylation induces a conformational transition near the lipid-water interface of phospholamban reconstituted with the Ca-ATPase. AN - 72686360; 12437353 AB - We have measured conformational changes of phospholamban (PLB) induced both by its interaction with the SR Ca-ATPase and by phosphorylation of Ser-16 by cAMP-dependent protein kinase (PKA) using an engineered PLB having a single cysteine (Cys-24) derivatized with the fluorophore 2-(4'-maleimidylanilino)naphthalene-6-sulfonic acid (ANSmal). This modified mutant PLB is fully functional when co-reconstituted with the affinity-purified Ca-ATPase in liposomes. ANSmal emission properties and its solvent accessibility indicate that Cys-24 is in an aqueous environment outside the membrane. Fluorescence quenching and time-resolved anisotropy measurements of ANSmal-PLB demonstrate distinct structures for PLB in the free and Ca-ATPase-bound state. Both solvent exposure and probe motions of ANSmal are enhanced upon interaction of PLB with the Ca-ATPase. This conformational transition entails conversion of free PLB in a conformation which is insensitive to one which is sensitive to the phosphorylation state of PLB. Upon phosphorylation of Ca-ATPase-bound PLB, a decreased level of solvent exposure of ANSmal is observed, suggesting that the amino acid sequence of PLB near the lipid-water interface acts as a conformational switch in response to the phosphorylation of PLB. A longer correlation time, resolved by anisotropy measurements, corresponding to polypeptide chain fluctuations, is substantially restricted by interaction of PLB with the Ca-ATPase. This restriction is not reversed by phosphorylation of PLB, indicating that the region around Cys-24 near the lipid-water interface does not undergo dissociation from the Ca-ATPase. These results suggest that the phosphorylation by PKA induces a redistribution of PLB-Ca-ATPase protein contacts to relieve the inhibitory effect of PLB for the activation of calcium transport. JF - Biochemistry AU - Chen, Baowei AU - Bigelow, Diana J AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA. Y1 - 2002/11/26/ PY - 2002 DA - 2002 Nov 26 SP - 13965 EP - 13972 VL - 41 IS - 47 SN - 0006-2960, 0006-2960 KW - Calcium-Binding Proteins KW - 0 KW - Recombinant Proteins KW - phospholamban KW - Water KW - 059QF0KO0R KW - Acrylamide KW - 20R035KLCI KW - Cyclic AMP-Dependent Protein Kinases KW - EC 2.7.11.11 KW - Calcium-Transporting ATPases KW - EC 3.6.3.8 KW - Cysteine KW - K848JZ4886 KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Cyclic AMP-Dependent Protein Kinases -- metabolism KW - Phosphorylation KW - Fluorescence Polarization KW - Recombinant Proteins -- metabolism KW - Models, Molecular KW - Kinetics KW - Calcium -- pharmacology KW - Acrylamide -- pharmacology KW - Recombinant Proteins -- chemistry KW - Protein Conformation KW - Calcium-Transporting ATPases -- metabolism KW - Calcium-Binding Proteins -- metabolism KW - Calcium-Binding Proteins -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72686360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biochemistry&rft.atitle=Phosphorylation+induces+a+conformational+transition+near+the+lipid-water+interface+of+phospholamban+reconstituted+with+the+Ca-ATPase.&rft.au=Chen%2C+Baowei%3BBigelow%2C+Diana+J&rft.aulast=Chen&rft.aufirst=Baowei&rft.date=2002-11-26&rft.volume=41&rft.issue=47&rft.spage=13965&rft.isbn=&rft.btitle=&rft.title=Biochemistry&rft.issn=00062960&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-01-09 N1 - Date created - 2002-11-19 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Model compound studies of the beta-O-4 linkage in lignin: absolute rate expressions for beta-scission of phenoxyl radical from 1-phenyl-2-phenoxyethanol-1-yl radical. AN - 72681275; 12423121 AB - Arrhenius rate expressions were determined for beta-scission of phenoxyl radical from 1-phenyl-2-phenoxyethanol-1-yl, PhC*(OH)CH2OPh (V). Ketyl radical V was competitively trapped by thiophenol to yield PhCH(OH)CH2OPh in competition with beta-scission to yield phenoxyl radical and acetophenone. A basis rate expression for hydrogen atom abstraction by sec-phenethyl alcohol, PhC*(OH)CH3, from thiophenol, log(k(abs)/M(-1) s(-1)) = (8.88 +/- 0.24) - (6.07 +/- 0.34)/theta, theta = 2.303RT, was determined by competing hydrogen atom abstraction with radical self-termination. Self-termination rates for PhC*(OH)CH3 were calculated using the Smoluchowski equation employing experimental diffusion coefficients of the parent alcohol, PhCH(OH)CH3, as a model for the radical. The hydrogen abstraction basis reaction was employed to determine the activation barrier for the beta-scission of phenoxyl from 1-phenyl-2-phenoxyethanol-1-yl (V): log(k beta)/s(-1)) = (12.85 +/- 0.22) - (15.06 +/- 0.38)/theta, k beta (298 K) ca. (64.0 s(-1) in benzene), and log(k beta /s(-1)) = (12.50 +/- 0.18) - (14.46 +/- 0.30)/theta, k beta (298 K) = 78.7 s(-1) in benzene containing 0.8 M 2-propanol. B3LYP/cc-PVTZ electronic structure calculations predict that intramolecular hydrogen bonding between the alpha-OH and the -OPh leaving group of ketyl radical (V) stabilizes both ground- and transition-state structures. The computed activation barrier, 14.9 kcal/mol, is in good agreement with the experimental activation barrier. JF - The Journal of organic chemistry AU - Kandanarachchi, Pramod H AU - Autrey, Tom AU - Franz, James A AD - Pacific Northwest National Laboratory, Fundamental Science Division, 902 Battelle Boulevard, Richland, Washington 99352, USA. Y1 - 2002/11/15/ PY - 2002 DA - 2002 Nov 15 SP - 7937 EP - 7945 VL - 67 IS - 23 SN - 0022-3263, 0022-3263 KW - Free Radicals KW - 0 KW - Industrial Waste KW - Phenols KW - phenoxy radical KW - 3229-70-7 KW - Lignin KW - 9005-53-2 KW - Index Medicus KW - Half-Life KW - Models, Molecular KW - Kinetics KW - Equipment Reuse KW - Carbohydrate Conformation KW - Lignin -- chemistry KW - Lignin -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72681275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+organic+chemistry&rft.atitle=Model+compound+studies+of+the+beta-O-4+linkage+in+lignin%3A+absolute+rate+expressions+for+beta-scission+of+phenoxyl+radical+from+1-phenyl-2-phenoxyethanol-1-yl+radical.&rft.au=Kandanarachchi%2C+Pramod+H%3BAutrey%2C+Tom%3BFranz%2C+James+A&rft.aulast=Kandanarachchi&rft.aufirst=Pramod&rft.date=2002-11-15&rft.volume=67&rft.issue=23&rft.spage=7937&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+organic+chemistry&rft.issn=00223263&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-07-31 N1 - Date created - 2002-11-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Physicochemical Characteristics of the Hyporheic Zone Affect Redd Site Selection by Chum Salmon and Fall Chinook Salmon in the Columbia River AN - 879469481; 11692524 AB - Chum salmon Oncorhynchus keta and fall chinook salmon O. tshawytscha spawned at separate locations in a side channel near Ives Island, Washington, in the Columbia River downstream of Bonneville Dam. We hypothesized that measurements of water depth, substrate size, and water velocity would not sufficiently explain the separation in spawning areas and began a 2-year investigation of physicochemical characteristics of the hyporheic zone. We found that chum salmon spawned in upwelling water that was significantly warmer than the surrounding river water. In contrast, fall chinook salmon constructed redds at downwelling sites, where there was no difference in temperature between the river and its bed. An understanding of the specific factors affecting chum salmon and fall chinook salmon redd site selection at Ives Island will be useful to resource managers attempting to maximize available salmonid spawning habitat within the constraints imposed by other water resource needs. JF - North American Journal of Fisheries Management AU - Geist, David R AU - Hanrahan, Timothy P AU - Arntzen, Evan V AU - McMichael, Geoffrey A AU - Murray, Christopher J AU - Chien, Yi-Ju AD - Pacific Northwest National Laboratory, Post Office Box 999, Richland, Washington 99352, USA Y1 - 2002/11// PY - 2002 DA - Nov 2002 SP - 1077 EP - 1085 PB - American Fisheries Society, 5410 Grosvenor Ln. Bethesda MD 20814-2199 USA VL - 22 IS - 4 SN - 0275-5947, 0275-5947 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 1: Biological Sciences & Living Resources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/879469481?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=North+American+Journal+of+Fisheries+Management&rft.atitle=Physicochemical+Characteristics+of+the+Hyporheic+Zone+Affect+Redd+Site+Selection+by+Chum+Salmon+and+Fall+Chinook+Salmon+in+the+Columbia+River&rft.au=Geist%2C+David+R%3BHanrahan%2C+Timothy+P%3BArntzen%2C+Evan+V%3BMcMichael%2C+Geoffrey+A%3BMurray%2C+Christopher+J%3BChien%2C+Yi-Ju&rft.aulast=Geist&rft.aufirst=David&rft.date=2002-11-01&rft.volume=22&rft.issue=4&rft.spage=1077&rft.isbn=&rft.btitle=&rft.title=North+American+Journal+of+Fisheries+Management&rft.issn=02755947&rft_id=info:doi/10.1577%2F1548-8675%282002%290222.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2014-02-21 DO - http://dx.doi.org/10.1577/1548-8675(2002)022<1077:PCOTHZ>2.0.CO;2 ER - TY - JOUR T1 - Aerosol transport to the U.S. receptor sites during ACE-Asia AN - 51836079; 2004-047247 JF - Eos, Transactions, American Geophysical Union AU - Jimenez Cruz, Michael P AU - Cahill, Thomas A AU - Perry, Kevin D AU - Cliff, Steven S AU - Cahill, Catherine F AU - Disselkamp, Robert S AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 130 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - dust storms KW - monitoring KW - Far East KW - sediment transport KW - grain size KW - trajectories KW - environmental effects KW - ACE-Asia KW - transport KW - atmospheric transport KW - aerosols KW - Asia KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51836079?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Aerosol+transport+to+the+U.S.+receptor+sites+during+ACE-Asia&rft.au=Jimenez+Cruz%2C+Michael+P%3BCahill%2C+Thomas+A%3BPerry%2C+Kevin+D%3BCliff%2C+Steven+S%3BCahill%2C+Catherine+F%3BDisselkamp%2C+Robert+S%3BAnonymous&rft.aulast=Jimenez+Cruz&rft.aufirst=Michael&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=130&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - ACE-Asia; aerosols; Asia; atmospheric transport; dust storms; environmental effects; Far East; grain size; monitoring; sediment transport; trajectories; transport; United States ER - TY - JOUR T1 - Rejuvenation and silicic melt migration in a near-solidus silicic mush induced by "gas sparging"? AN - 51700291; 2005-040384 JF - Eos, Transactions, American Geophysical Union AU - Bachmann, Olivier AU - Bergantz, George W AU - White, Mark D AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - andesites KW - volcanic rocks KW - numerical models KW - igneous rocks KW - silicate melts KW - magmatism KW - data processing KW - siliceous composition KW - effects KW - Paleogene KW - melts KW - genesis KW - Cenozoic KW - pyroclastics KW - volatiles KW - Tertiary KW - magmas KW - digital simulation KW - Huerto Andesite KW - tuff KW - Fish Canyon Tuff KW - Oligocene KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51700291?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Rejuvenation+and+silicic+melt+migration+in+a+near-solidus+silicic+mush+induced+by+%22gas+sparging%22%3F&rft.au=Bachmann%2C+Olivier%3BBergantz%2C+George+W%3BWhite%2C+Mark+D%3BAnonymous&rft.aulast=Bachmann&rft.aufirst=Olivier&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F1381&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 1 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - andesites; Cenozoic; data processing; digital simulation; effects; Fish Canyon Tuff; genesis; Huerto Andesite; igneous rocks; magmas; magmatism; melts; numerical models; Oligocene; Paleogene; pyroclastics; silicate melts; siliceous composition; Tertiary; tuff; volatiles; volcanic rocks ER - TY - JOUR T1 - Potential for methanotroph-mediated natural attenuation of TCE in a basalt aquifer AN - 51694988; 2005-054630 JF - Eos, Transactions, American Geophysical Union AU - Colwell, Frederick S AU - Newby, Deborah T AU - Reed, David W AU - Igoe, Amber AU - Petzke, Lynn AU - Delwiche, Mark E AU - McKinley, James P AU - Roberto, Francisco F AU - Whiticar, Michael J AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - F198 EP - F199 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Snake River Plain Aquifer KW - chlorinated hydrocarbons KW - Idaho KW - concentration KW - biodegradation KW - methane KW - pollutants KW - aliphatic hydrocarbons KW - pollution KW - alkanes KW - ground water KW - aquifers KW - genesis KW - organic compounds KW - natural attenuation KW - hydrocarbons KW - DNA KW - halogenated hydrocarbons KW - trichloroethylene KW - water pollution KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51694988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Potential+for+methanotroph-mediated+natural+attenuation+of+TCE+in+a+basalt+aquifer&rft.au=Colwell%2C+Frederick+S%3BNewby%2C+Deborah+T%3BReed%2C+David+W%3BIgoe%2C+Amber%3BPetzke%2C+Lynn%3BDelwiche%2C+Mark+E%3BMcKinley%2C+James+P%3BRoberto%2C+Francisco+F%3BWhiticar%2C+Michael+J%3BAnonymous&rft.aulast=Colwell&rft.aufirst=Frederick&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F198&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aquifers; biodegradation; chlorinated hydrocarbons; concentration; DNA; genesis; ground water; halogenated hydrocarbons; hydrocarbons; Idaho; methane; microorganisms; natural attenuation; organic compounds; pollutants; pollution; Snake River Plain Aquifer; trichloroethylene; United States; water pollution ER - TY - JOUR T1 - Biostimulation of metal-reducing microbes at a former uranium mill tailings site AN - 51693715; 2005-054633 JF - Eos, Transactions, American Geophysical Union AU - Peacock, Aaron D AU - Anderson, R Todd AU - Chang, Janet AU - Long, Philip E AU - White, David C AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - esters KW - biodegradation KW - monitoring KW - acetates KW - Garfield County Colorado KW - pollutants KW - pollution KW - bioremediation KW - biomarkers KW - remediation KW - ground water KW - Rifle Colorado KW - organic compounds KW - metals KW - anaerobic environment KW - uranium KW - Colorado KW - water pollution KW - tailings KW - actinides KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51693715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Biostimulation+of+metal-reducing+microbes+at+a+former+uranium+mill+tailings+site&rft.au=Peacock%2C+Aaron+D%3BAnderson%2C+R+Todd%3BChang%2C+Janet%3BLong%2C+Philip+E%3BWhite%2C+David+C%3BAnonymous&rft.aulast=Peacock&rft.aufirst=Aaron&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F199&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - acetates; actinides; anaerobic environment; biodegradation; biomarkers; bioremediation; Colorado; esters; field studies; Garfield County Colorado; ground water; metals; monitoring; organic compounds; pollutants; pollution; remediation; Rifle Colorado; tailings; United States; uranium; water pollution ER - TY - JOUR T1 - X-ray spectroscopic investigation of the distribution and speciation of uranium in contaminated sediments from the DOE's Hanford Site AN - 51692607; 2005-056165 JF - Eos, Transactions, American Geophysical Union AU - Catalano, Jeffrey G AU - Zachara, John M AU - Heald, Steve M AU - Brown, Gordon E AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1425 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - contaminant plumes KW - X-ray diffraction data KW - unsaturated zone KW - waste lagoons KW - radioactive waste KW - ground water KW - synchrotron radiation KW - phase equilibria KW - sediments KW - orthosilicates KW - X-ray fluorescence spectra KW - spectra KW - heterogeneity KW - geochemistry KW - experimental studies KW - Washington KW - pollution KW - Hanford Site KW - X-ray spectra KW - boltwoodite KW - nesosilicates KW - metals KW - EXAFS data KW - uranium KW - waste disposal KW - uranophane KW - actinides KW - chemical fractionation KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51692607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=X-ray+spectroscopic+investigation+of+the+distribution+and+speciation+of+uranium+in+contaminated+sediments+from+the+DOE%27s+Hanford+Site&rft.au=Catalano%2C+Jeffrey+G%3BZachara%2C+John+M%3BHeald%2C+Steve+M%3BBrown%2C+Gordon+E%3BAnonymous&rft.aulast=Catalano&rft.aufirst=Jeffrey&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=1425&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - actinides; boltwoodite; chemical fractionation; contaminant plumes; EXAFS data; experimental studies; geochemistry; ground water; Hanford Site; heterogeneity; metals; nesosilicates; orthosilicates; phase equilibria; pollution; radioactive waste; sediments; silicates; spectra; synchrotron radiation; United States; unsaturated zone; uranium; uranophane; Washington; waste disposal; waste lagoons; X-ray diffraction data; X-ray fluorescence spectra; X-ray spectra ER - TY - JOUR T1 - American Geophysical Union 2002 fall meeting AN - 51682819; 2005-060424 JF - Eos, Transactions, American Geophysical Union AU - Ross, Nancy L AU - Gibbs, Gerald V AU - Rosso, Kevin M AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - pressure KW - density KW - prediction KW - perovskite KW - high pressure KW - spatial variations KW - hydrogen KW - theoretical models KW - oxides KW - crystal chemistry KW - geochemistry KW - minerals KW - electrons KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51682819?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=American+Geophysical+Union+2002+fall+meeting&rft.au=Ross%2C+Nancy+L%3BGibbs%2C+Gerald+V%3BRosso%2C+Kevin+M%3BAnonymous&rft.aulast=Ross&rft.aufirst=Nancy&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F620&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - crystal chemistry; density; electrons; geochemistry; high pressure; hydrogen; minerals; oxides; perovskite; prediction; pressure; silicates; spatial variations; theoretical models ER - TY - JOUR T1 - The role of localized reducing zones in Cr(VI)aq removal by the Hanford sediments under hyperalkaline conditions AN - 51674891; 2005-064190 JF - Eos, Transactions, American Geophysical Union AU - Qafoku, N P AU - Lichtner, P C AU - Ainsworth, C C AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - high-level waste KW - experimental studies KW - Washington KW - oxygen KW - contaminant plumes KW - isotopes KW - alkali metals KW - pollution KW - Hanford Site KW - Grant County Washington KW - Franklin County Washington KW - models KW - radioactive isotopes KW - Cs-137 KW - cesium KW - metals KW - sediments KW - reduction KW - Benton County Washington KW - chromium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51674891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+role+of+localized+reducing+zones+in+Cr%28VI%29aq+removal+by+the+Hanford+sediments+under+hyperalkaline+conditions&rft.au=Qafoku%2C+N+P%3BLichtner%2C+P+C%3BAinsworth%2C+C+C%3BAnonymous&rft.aulast=Qafoku&rft.aufirst=N&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F1498&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkali metals; Benton County Washington; cesium; chromium; contaminant plumes; Cs-137; experimental studies; Franklin County Washington; Grant County Washington; Hanford Site; high-level waste; isotopes; metals; models; oxygen; pollution; radioactive isotopes; reduction; sediments; United States; Washington ER - TY - JOUR T1 - Multiple pore region model of uranium(VI) reductive immobilization in structured subsurface media AN - 51637973; 2006-012230 JF - Eos, Transactions, American Geophysical Union AU - Roden, Eric E AU - Scheibe, Timothy D AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - biomineralization KW - experimental studies KW - technology KW - bacteria KW - pollution KW - bioremediation KW - water pollution KW - simulation KW - remediation KW - ground water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51637973?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Multiple+pore+region+model+of+uranium%28VI%29+reductive+immobilization+in+structured+subsurface+media&rft.au=Roden%2C+Eric+E%3BScheibe%2C+Timothy+D%3BAnonymous&rft.aulast=Roden&rft.aufirst=Eric&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F271&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bacteria; biomineralization; bioremediation; experimental studies; ground water; pollution; remediation; simulation; technology; water pollution ER - TY - JOUR T1 - The reductive immobilization of pertechnetate by bioreduced sediments AN - 51536380; 2006-080344 JF - Eos, Transactions, American Geophysical Union AU - McKinley, James P AU - Zachara, John M AU - Heald, Steve M AU - Fredrickson, James K AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 247 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - silicates KW - iron oxides KW - iron KW - mica group KW - weathered materials KW - Tennessee KW - sediments KW - manganese oxides KW - oxides KW - reduction KW - geochemistry KW - Eh KW - Shewanella putrifaciens KW - Oak Ridge National Laboratory KW - technetium KW - Washington KW - clastic sediments KW - Hanford Site KW - biogenic processes KW - metals KW - biotite KW - bacteria KW - lacustrine environment KW - sheet silicates KW - fluviolacustrine environment KW - mobilization KW - fluvial environment KW - microorganisms KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51536380?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+reductive+immobilization+of+pertechnetate+by+bioreduced+sediments&rft.au=McKinley%2C+James+P%3BZachara%2C+John+M%3BHeald%2C+Steve+M%3BFredrickson%2C+James+K%3BAnonymous&rft.aulast=McKinley&rft.aufirst=James&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; biotite; clastic sediments; Eh; fluvial environment; fluviolacustrine environment; geochemistry; Hanford Site; iron; iron oxides; lacustrine environment; manganese oxides; metals; mica group; microorganisms; mobilization; Oak Ridge National Laboratory; oxides; reduction; sediments; sheet silicates; Shewanella putrifaciens; silicates; technetium; Tennessee; United States; Washington; weathered materials ER - TY - JOUR T1 - Updated magnetostratigraphy of ice age flood deposits of the Cold Creek Bar at the Hanford Site, southeastern Washington AN - 51534354; 2006-080551 JF - Eos, Transactions, American Geophysical Union AU - Pluhar, Christopher J AU - Bjornstad, Bruce N AU - Reidel, Stephen AU - Coe, Robert S AU - Nelson, Paul B AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - Cold Creek KW - demagnetization KW - glaciation KW - alternating field demagnetization KW - magnetostratigraphy KW - gravel KW - Cenozoic KW - jokulhlaups KW - sediments KW - Pasco Basin KW - floods KW - Benton County Washington KW - lower Pleistocene KW - thermal demagnetization KW - marker beds KW - sand KW - Washington KW - Quaternary KW - clastic sediments KW - bars KW - Hanford Site KW - silt KW - paleomagnetism KW - Olduvai Subchron KW - glacial features KW - boreholes KW - reversals KW - Pleistocene KW - Columbia Plateau KW - Channeled Scabland KW - meltwater KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51534354?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Updated+magnetostratigraphy+of+ice+age+flood+deposits+of+the+Cold+Creek+Bar+at+the+Hanford+Site%2C+southeastern+Washington&rft.au=Pluhar%2C+Christopher+J%3BBjornstad%2C+Bruce+N%3BReidel%2C+Stephen%3BCoe%2C+Robert+S%3BNelson%2C+Paul+B%3BAnonymous&rft.aulast=Pluhar&rft.aufirst=Christopher&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F411&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alternating field demagnetization; bars; Benton County Washington; boreholes; Cenozoic; Channeled Scabland; clastic sediments; Cold Creek; Columbia Plateau; demagnetization; floods; glacial features; glaciation; gravel; Hanford Site; jokulhlaups; lower Pleistocene; magnetostratigraphy; marker beds; meltwater; Olduvai Subchron; paleomagnetism; Pasco Basin; Pleistocene; Quaternary; reversals; sand; sediments; silt; thermal demagnetization; United States; Washington ER - TY - JOUR T1 - The role of Mg (super +2) in the dissolution of pure calcite; insights from AFM and vertical scanning interferometry AN - 51532569; 2006-080336 JF - Eos, Transactions, American Geophysical Union AU - Arvidson, Rolf S AU - Amonette, James E AU - Collier, Martin AU - Hurt, Tom T AU - Luttge, Andreas AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 245 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - calcium KW - alkaline earth metals KW - magnesium KW - vertical scanning interferometry KW - mechanism KW - rates KW - solution KW - interferometry KW - calcite KW - atomic force microscopy data KW - metals KW - geochemistry KW - chemical ratios KW - carbonates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51532569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=The+role+of+Mg+%28super+%2B2%29+in+the+dissolution+of+pure+calcite%3B+insights+from+AFM+and+vertical+scanning+interferometry&rft.au=Arvidson%2C+Rolf+S%3BAmonette%2C+James+E%3BCollier%2C+Martin%3BHurt%2C+Tom+T%3BLuttge%2C+Andreas%3BAnonymous&rft.aulast=Arvidson&rft.aufirst=Rolf&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atomic force microscopy data; calcite; calcium; carbonates; chemical ratios; geochemistry; interferometry; magnesium; mechanism; metals; rates; solution; vertical scanning interferometry ER - TY - JOUR T1 - Impacts of spatial resolutions on water budget simulated by the VIC-3L hydrologically-based land surface model AN - 51532062; 2006-086135 JF - Eos, Transactions, American Geophysical Union AU - Guo, J AU - Liang, X AU - Leung, L AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - hydrology KW - high-resolution methods KW - VIC-3L model KW - soil dynamics KW - spatial data KW - moisture KW - radar methods KW - atmospheric precipitation KW - water balance KW - models KW - physical properties KW - Oklahoma KW - evaporation KW - infiltration KW - Blue River basin KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51532062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Impacts+of+spatial+resolutions+on+water+budget+simulated+by+the+VIC-3L+hydrologically-based+land+surface+model&rft.au=Guo%2C+J%3BLiang%2C+X%3BLeung%2C+L%3BAnonymous&rft.aulast=Guo&rft.aufirst=J&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F594&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; Blue River basin; evaporation; high-resolution methods; hydrology; infiltration; models; moisture; Oklahoma; physical properties; radar methods; soil dynamics; spatial data; United States; VIC-3L model; water balance ER - TY - JOUR T1 - Uncertainty assessment of a parameterization method for vadose zone modeling AN - 51531167; 2006-086152 JF - Eos, Transactions, American Geophysical Union AU - Meyer, P D AU - Rockhold, M L AU - Murray, C J AU - Chien, Y AU - Anonymous Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 1 PB - American Geophysical Union, Washington, DC VL - 83 IS - 47, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - hydrology KW - experimental studies KW - statistical analysis KW - unsaturated zone KW - prediction KW - porous materials KW - geostatistics KW - fluid dynamics KW - simulation KW - measurement KW - models KW - transport KW - sediments KW - retention KW - uncertainty KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51531167?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Uncertainty+assessment+of+a+parameterization+method+for+vadose+zone+modeling&rft.au=Meyer%2C+P+D%3BRockhold%2C+M+L%3BMurray%2C+C+J%3BChien%2C+Y%3BAnonymous&rft.aulast=Meyer&rft.aufirst=P&rft.date=2002-11-01&rft.volume=83&rft.issue=47%2C+Suppl.&rft.spage=F597&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2002 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - experimental studies; fluid dynamics; geostatistics; hydrology; measurement; models; porous materials; prediction; retention; sediments; simulation; soils; statistical analysis; transport; uncertainty; unsaturated zone ER - TY - JOUR T1 - Advances in tensiometry for long-term monitoring of soil water pressures AN - 51131749; 2006-007769 AB - Soil water pressures, measured over space and time, are needed to predict the direction of water flow and chemical transport in the vadose zone. Advanced tensiometers (ATs), which utilize a water-filled porous cup connected directly to a pressure transducer, can be installed at almost any location and depth using standard drilling techniques such as auger drilling, but these methods can significantly disturb the site. For sites where minimal disturbance is desired, alternate approaches for tensiometer placement have been sought. To test installation techniques and performance longevity, advanced tensiometers were placed into the ground at a test site near Richland, WA using two different installation methods, auger drilling and a drive-cone push technique. The tensiometers were subsequently monitored for nearly 2 yr without refilling or recalibration. The data indicated that tensiometers placed by the auger technique took several months to equilibrate, while the cone push units came to equilibrium within 24 h following their installation. Soil water pressures always remained above -90 cm pressure head (-90 mbar) at depths >90 cm. At the greatest depth (730 cm), positive then negative pressures were observed as the water table was lowered and the soil drained. The results suggest that for our test conditions (coarse sandy soil, no vegetation), soil water pressures stay well within the tensiometer range and unit gradient conditions persist, indicating a draining profile. Advanced tensiometers, placed either by auger or cone penetrometer, provide a robust and reliable method for long-term monitoring of soil water pressure profiles. JF - Vadose Zone Journal AU - Sisson, J B AU - Gee, G W AU - Hubbell, J M AU - Bratton, W L AU - Ritter, J C AU - Ward, A L AU - Caldwell, T G Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 310 EP - 315 PB - Soil Science Society of America, Madison, WI VL - 1 IS - 2 KW - vinyl chloride KW - United States KW - chlorinated hydrocarbons KW - drive cone method KW - moisture KW - unsaturated zone KW - techniques KW - water pressure KW - sediments KW - halogenated hydrocarbons KW - Benton County Washington KW - lysimeters KW - soils KW - sand KW - experimental studies KW - Washington KW - monitoring KW - in situ KW - clastic sediments KW - pollutants KW - Richland Washington KW - organic compounds KW - tensiometers KW - hollow-stem auger method KW - Columbia Plateau KW - instruments KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51131749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Advances+in+tensiometry+for+long-term+monitoring+of+soil+water+pressures&rft.au=Sisson%2C+J+B%3BGee%2C+G+W%3BHubbell%2C+J+M%3BBratton%2C+W+L%3BRitter%2C+J+C%3BWard%2C+A+L%3BCaldwell%2C+T+G&rft.aulast=Sisson&rft.aufirst=J&rft.date=2002-11-01&rft.volume=1&rft.issue=2&rft.spage=310&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 13 N1 - PubXState - WI N1 - Document feature - illus. N1 - SuppNotes - Accessed on December 16, 2005 N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - Benton County Washington; chlorinated hydrocarbons; clastic sediments; Columbia Plateau; drive cone method; experimental studies; field studies; halogenated hydrocarbons; hollow-stem auger method; in situ; instruments; lysimeters; moisture; monitoring; organic compounds; pollutants; Richland Washington; sand; sediments; soils; techniques; tensiometers; United States; unsaturated zone; vinyl chloride; Washington; water pressure ER - TY - JOUR T1 - Water-retention of fractal soil models using continuum percolation theory; tests of Hanford Site soils AN - 50079710; 2003-012187 AB - For 43 Hanford site soils, we use fractal analysis and assume proportionality of pore radii to particle radii to generate water-retention curves, h(), from particle-size distributions. The air-entry head is used as an adjustable parameter to optimize the fit to experimental data for h(). At a low moisture content, d, the predicted and observed water-retention curves deviate. It is shown here that the moisture content at which this deviation occurs is in most cases probably the same value, at which previous experiments found a vanishing of solute diffusion. Where this correlation is indicated, we interpret d as a critical moisture content for percolation of capillary flow paths, and the relevance of other mechanisms of water transport, such as film flow, to equilibration at lower moisture contents. In other individual cases, however, the deviation is correlated with very low values of the hydraulic conductivity associated with capillary flow. In either case, we infer that the deviation from fractal predictions is due to the lack of equilibration of the medium. Our work thus exploits theoretical and analytical gains from percolation theory and fractal analysis to define the equilibrium limits on water retention curves. JF - Vadose Zone Journal AU - Hunt, Allen G AU - Gee, Glendon W Y1 - 2002/11// PY - 2002 DA - November 2002 SP - 252 EP - 260 PB - Soil Science Society of America, Madison, WI VL - 1 IS - 2 KW - water KW - United States KW - soils KW - hydrology KW - sand KW - Washington KW - continuum percolation theory KW - clastic sediments KW - moisture KW - unsaturated zone KW - Hanford Site KW - models KW - theoretical studies KW - loam KW - saturation KW - sediments KW - retention KW - hydrodynamics KW - testing KW - percolation KW - fractals KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079710?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Water-retention+of+fractal+soil+models+using+continuum+percolation+theory%3B+tests+of+Hanford+Site+soils&rft.au=Hunt%2C+Allen+G%3BGee%2C+Glendon+W&rft.aulast=Hunt&rft.aufirst=Allen&rft.date=2002-11-01&rft.volume=1&rft.issue=2&rft.spage=252&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 36 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Dec. 9, 2002 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - clastic sediments; continuum percolation theory; fractals; Hanford Site; hydrodynamics; hydrology; loam; models; moisture; percolation; retention; sand; saturation; sediments; soils; testing; theoretical studies; United States; unsaturated zone; Washington; water ER - TY - JOUR T1 - Motivating Residents to Conserve Energy without Financial Incentives AN - 34772020; 200910-B7-0082680 (MB); 200910-30-0135657 (CE); 10903951 (EN) AB - Given the aim to motivate people to conserve energy in homes, we need to understand what drives people's energy use behavior and how it can be influenced. This article describes applied energy conservation campaigns at two U.S. military installations where residents do not pay their own utility bills. Customized approaches were designed for each installation based on a broad social-psychological model. Before-and-after energy use was measured, and residents were surveyed about end use behaviors. Residents said they were motivated by the desire to do the right thing, set good examples for their children, and have comfortable homes. For sustained change, respondents recommended continued awareness and education, disincentives, and incentives. Findings support some aspects of a social-psychological model, with emphasis on altruistic and egoistic motives for behavioral change. These studies may have implications for situations where residents are not billed for individual energy use, including other government-subsidized facilities, master-metered apartments, and university dormitories. JF - Environment & Behavior AU - McMakin, Andrea H AU - Malone, Elizabeth L AU - Lundgren, Regina E AD - Pacific Northwest National Laboratory in Washington, D.C PY - 2002 SP - 848 EP - 863 PB - Sage Publications, 2455 Teller Road, Thousand Oaks, CA, 91320, USA, [mailto:sagescience)sagepub.com], [URL:http://www.sagepub.com] VL - 34 IS - 6 SN - 0013-9165, 0013-9165 KW - Materials Business File (MB); Civil Engineering (CE); Environmental Engineering (EN) KW - Energy use KW - Energy conservation KW - Mathematical models KW - Incentives KW - Military KW - Utilities KW - Education KW - Bills KW - Article KW - EE 70:Energy (EN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/34772020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environment+%26+Behavior&rft.atitle=Motivating+Residents+to+Conserve+Energy+without+Financial+Incentives&rft.au=McMakin%2C+Andrea+H%3BMalone%2C+Elizabeth+L%3BLundgren%2C+Regina+E&rft.aulast=McMakin&rft.aufirst=Andrea&rft.date=2002-11-01&rft.volume=34&rft.issue=6&rft.spage=848&rft.isbn=&rft.btitle=&rft.title=Environment+%26+Behavior&rft.issn=00139165&rft_id=info:doi/10.1177%2F001391602237252 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Number of references - 39 N1 - Last updated - 2011-11-14 DO - http://dx.doi.org/10.1177/001391602237252 ER - TY - JOUR T1 - NMR Structure of the Escherichia coli Protein YacG: a Novel Sequence Motif in the Zinc-Finger Family of Proteins AN - 18634087; 5535397 JF - Proteins: Structure, Function & Genetics AU - Ramelot, T A AU - Cort, J R AU - Yee, A A AU - Semesi, A AU - Edwards, A M AU - Arrowsmith, CH AU - Kennedy, MA AD - Battelle, Pacific Northwest National Laboratory, P.O. Box 999/MS K8-98, Richland, WA 99352, USA, ma_kennedy@pnl.gov Y1 - 2002/11/01/ PY - 2002 DA - 2002 Nov 01 SP - 289 EP - 293 VL - 49 IS - 2 SN - 0887-3585, 0887-3585 KW - YacG protein KW - Microbiology Abstracts B: Bacteriology KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18634087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteins%3A+Structure%2C+Function+%26+Genetics&rft.atitle=NMR+Structure+of+the+Escherichia+coli+Protein+YacG%3A+a+Novel+Sequence+Motif+in+the+Zinc-Finger+Family+of+Proteins&rft.au=Ramelot%2C+T+A%3BCort%2C+J+R%3BYee%2C+A+A%3BSemesi%2C+A%3BEdwards%2C+A+M%3BArrowsmith%2C+CH%3BKennedy%2C+MA&rft.aulast=Ramelot&rft.aufirst=T&rft.date=2002-11-01&rft.volume=49&rft.issue=2&rft.spage=289&rft.isbn=&rft.btitle=&rft.title=Proteins%3A+Structure%2C+Function+%26+Genetics&rft.issn=08873585&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Establishment of a novel clonal murine bone marrow stromal cell line for assessment of p53 responses to genotoxic stress. AN - 72118525; 12270597 AB - The p53 protein is widely regarded as an important sensor of genotoxic damage in cells, and mutations in p53 are the most frequent observed in human cancers. Rapid assays for evaluating the potential of a chemical or physical agent to alter the transcriptional regulatory role of p53 may therefore serve as useful tools in toxicological research. In this study, the use of enhanced green fluorescent protein (EGFP) as a live cell reporter to assess the transactivation response of p53 to chemical and physical agents was evaluated. A stable murine bone marrow stromal cell line (D2XRIIGFP24) expressing EGFP under control of p53 response elements was established. D2XRIIGFP24 cells displayed low constitutive background fluorescence which was significantly enhanced in response to exposure to agents that induced p53 protein levels. Increases in EGFP fluorescence in response to oxidative and nitrosative stress as well as UVC irradiation were dose-dependent, detectable within 3 h of exposure and correlated closely with the amount of p53 protein accumulated within the cell. The results demonstrate the potential for rapid and early detection of p53 transactivation using the EGFP reporter approach and indicate this approach is adaptable to a variety of fluorescent assay techniques and a useful cell model for molecular toxicology research. JF - Toxicology AU - Gorbunov, Nikolai V AU - Morris, James E AU - Greenberger, Joel S AU - Thrall, Brian D AD - Pacific Northwest National Laboratory, Richland, WA, USA. nikolai.gorbunov@na.amedd.army.mil Y1 - 2002/10/15/ PY - 2002 DA - 2002 Oct 15 SP - 257 EP - 266 VL - 179 IS - 3 SN - 0300-483X, 0300-483X KW - Luminescent Proteins KW - 0 KW - Tumor Suppressor Protein p53 KW - Green Fluorescent Proteins KW - 147336-22-9 KW - Nitric Oxide KW - 31C4KY9ESH KW - Hydrogen Peroxide KW - BBX060AN9V KW - Index Medicus KW - Nitric Oxide -- toxicity KW - Animals KW - Comet Assay KW - Dose-Response Relationship, Drug KW - Stromal Cells KW - Luminescent Proteins -- metabolism KW - Mice KW - Dose-Response Relationship, Radiation KW - Transcriptional Activation KW - Hydrogen Peroxide -- toxicity KW - Kinetics KW - Oxidative Stress KW - Ultraviolet Rays -- adverse effects KW - Genes, Reporter KW - Clone Cells KW - Tumor Suppressor Protein p53 -- analysis KW - Mutagenicity Tests -- methods KW - Stress, Physiological -- genetics KW - Bone Marrow Cells -- cytology KW - Tumor Suppressor Protein p53 -- genetics KW - Tumor Suppressor Protein p53 -- metabolism KW - Cell Line UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72118525?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology&rft.atitle=Establishment+of+a+novel+clonal+murine+bone+marrow+stromal+cell+line+for+assessment+of+p53+responses+to+genotoxic+stress.&rft.au=Gorbunov%2C+Nikolai+V%3BMorris%2C+James+E%3BGreenberger%2C+Joel+S%3BThrall%2C+Brian+D&rft.aulast=Gorbunov&rft.aufirst=Nikolai&rft.date=2002-10-15&rft.volume=179&rft.issue=3&rft.spage=257&rft.isbn=&rft.btitle=&rft.title=Toxicology&rft.issn=0300483X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-06 N1 - Date created - 2002-09-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A comparison between modeled and measured clear-sky radiative shortwave fluxes in Arctic environments, with special emphasis on diffuse radiation AN - 51886137; 2004-016862 JF - Journal of Geophysical Research AU - Barnard, J C AU - Powell, D M Y1 - 2002/10// PY - 2002 DA - October 2002 SP - 10 PB - American Geophysical Union, Washington, DC VL - 107 IS - D19 SN - 0148-0227, 0148-0227 KW - United States KW - North America KW - North Slope KW - Arctic region KW - atmosphere KW - measurement KW - SBDART KW - models KW - optical properties KW - solar radiation KW - radiative shortwave flux KW - Great Plains KW - aerosols KW - MODTRAN KW - Alaska KW - meteorology KW - Southern Great Plains KW - Santa Barbara Distort Atmosphere Radiative Transfer KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51886137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=A+comparison+between+modeled+and+measured+clear-sky+radiative+shortwave+fluxes+in+Arctic+environments%2C+with+special+emphasis+on+diffuse+radiation&rft.au=Barnard%2C+J+C%3BPowell%2C+D+M&rft.aulast=Barnard&rft.aufirst=J&rft.date=2002-10-01&rft.volume=107&rft.issue=D19&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2001JD001442 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 24 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerosols; Alaska; Arctic region; atmosphere; Great Plains; measurement; meteorology; models; MODTRAN; North America; North Slope; optical properties; radiative shortwave flux; Santa Barbara Distort Atmosphere Radiative Transfer; SBDART; solar radiation; Southern Great Plains; United States DO - http://dx.doi.org/10.1029/2001JD001442 ER - TY - JOUR T1 - Differential advection of colloidal and solute tracers in groundwater AN - 51860360; 2004-033200 AB - Several field and laboratory studies of transport of colloidal and solute tracers in groundwater have observed an apparent increase in the mean velocity of colloids relative to non-reactive solutes. This phenomenon, referred to here as differential advection, is poorly understood and has been explained in terms of a variety of hypothesized processes acting at pore and larger scales. Only recently has there been an effort to develop quantitative models that are consistent with the hypothesized processes, and significant confusion and debate remains regarding the means of identification of, and the processes causing, differential advection. We present observations from a number of recent laboratory and field experiments and discuss their implications in the context of current conceptualizations and model representations of differential advection processes. JF - Abstracts with Programs - Geological Society of America AU - Scheibe, Timothy D AU - Wood, Brian D AU - Ginn, Timothy R AU - Johnson, William P AU - Zhang, Pengfei AU - Onstott, Tullis C AU - Hall, James A AU - Fuller, Mark E AU - Dong, Hailiang AU - Anonymous Y1 - 2002/10// PY - 2002 DA - October 2002 SP - 157 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 6 SN - 0016-7592, 0016-7592 KW - processes KW - experimental studies KW - colloidal materials KW - solutes KW - advection KW - concepts KW - ground water KW - laboratory studies KW - quantitative analysis KW - identification KW - tracers KW - velocity KW - field studies KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51860360?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Differential+advection+of+colloidal+and+solute+tracers+in+groundwater&rft.au=Scheibe%2C+Timothy+D%3BWood%2C+Brian+D%3BGinn%2C+Timothy+R%3BJohnson%2C+William+P%3BZhang%2C+Pengfei%3BOnstott%2C+Tullis+C%3BHall%2C+James+A%3BFuller%2C+Mark+E%3BDong%2C+Hailiang%3BAnonymous&rft.aulast=Scheibe&rft.aufirst=Timothy&rft.date=2002-10-01&rft.volume=34&rft.issue=6&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2002 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - advection; colloidal materials; concepts; experimental studies; field studies; ground water; identification; laboratory studies; processes; quantitative analysis; solutes; tracers; velocity ER - TY - JOUR T1 - Transport of bacterial probes in the subsurface; physicochemical and biological factors, or "colloids wouldn't do that!" AN - 51859233; 2004-033197 AB - Bacteria can be used as probes in combination with dissolved tracers to elucidate transport-related aquifer properties. For example, physical heterogeneity can be inferred by observing differential advection of bacteria (or other colloids) relative to dissolved tracers, as illustrated by field experiments conducted at Kamas and Fry Canyon, Utah. Bacterial breakthrough-elution curves also provide information regarding the processes that control bacterial loss from, and re-entrainment into, groundwater. A high-resolution bacterial tracking technique was used to focus on the low concentration portions of bacterial breakthrough and elution histories (initial breakthrough and extended tailing) during DOE-sponsored field transport experiments conducted at Oyster, Virginia. The rates of bacterial loss from, and re-entrainment into, groundwater were shown to be controlled by both physicochemical and biological factors during these relatively long duration-large scale field experiments. Physicochemical factors that operated during the transport experiments included variations in hydrodynamic shear (pore water velocity), and potentially included hydrodynamic collision between mobile and attached cells. Biological factors that influenced transport included heterogeneity in cell surface properties, as well as predation. An additional biological factor that potentially impacted transport was cell growth. Much remains to be understood regarding the above, and other, controls on bacterial transport. However, understanding these controls is important and necessary for a variety of reasons, such as the potential use of bacterial probes to assay properties of the subsurface, as well as the need to deliver bacteria with novel metabolic properties to specific subsurface locales. JF - Abstracts with Programs - Geological Society of America AU - Johnson, William P AU - Zhang, Pengfei AU - McIntosh, William O AU - Scheibe, Timothy D AU - Onstott, Tullis C AU - Fuller, Mark E AU - Dobbs, Fred C AU - DeFlaun, Mary F AU - Holben, William AU - Griffin, Timothy AU - Anonymous Y1 - 2002/10// PY - 2002 DA - October 2002 SP - 156 EP - 157 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - Northampton County Virginia KW - Fry Canyon KW - ground water KW - controls KW - Oyster Virginia KW - transport KW - tracers KW - velocity KW - hydrodynamics KW - Atlantic Coastal Plain KW - processes KW - high-resolution methods KW - colloidal materials KW - Virginia KW - predation KW - metabolism KW - physicochemical properties KW - Kamas Canyon KW - pollution KW - aquifers KW - factors KW - bacteria KW - Utah KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51859233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Transport+of+bacterial+probes+in+the+subsurface%3B+physicochemical+and+biological+factors%2C+or+%22colloids+wouldn%27t+do+that%21%22&rft.au=Johnson%2C+William+P%3BZhang%2C+Pengfei%3BMcIntosh%2C+William+O%3BScheibe%2C+Timothy+D%3BOnstott%2C+Tullis+C%3BFuller%2C+Mark+E%3BDobbs%2C+Fred+C%3BDeFlaun%2C+Mary+F%3BHolben%2C+William%3BGriffin%2C+Timothy%3BAnonymous&rft.aulast=Johnson&rft.aufirst=William&rft.date=2002-10-01&rft.volume=34&rft.issue=6&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2002 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; Atlantic Coastal Plain; bacteria; colloidal materials; controls; factors; Fry Canyon; ground water; high-resolution methods; hydrodynamics; Kamas Canyon; metabolism; Northampton County Virginia; Oyster Virginia; physicochemical properties; pollution; pore water; predation; processes; tracers; transport; United States; Utah; velocity; Virginia ER - TY - JOUR T1 - Direct determination of change of bacterial collision efficiency with transport distance in field scale bacterial transport experiments AN - 51857836; 2004-033203 AB - Previous laboratory column and field injection bacterial transport experiments have observed an apparent decrease in bacterial adhesion with transport distance. These observations have been hypothesized as resulting from variability in cell surface properties within a monoclonal population that give rise to preferential transport of a subpopulation. However, there lacks direct measurements of changes in bacterial adhesion properties as a function of transport distance. This study was undertaken to directly measure changes in collision efficiency as a function of transport distance at the South Oyster field site near Oyster, VA. Following injection of an adhesion deficient strain, Comamonas sp. DA001, into a up-gradient well, bacterial samples were taken from multi-level samplers at various distances along the flow path, and were injected into columns (40 cm in length and 7.5 cm in diameter) packed with homogenized sediment collected from the same site. Electrophoretic mobilities were measured for each bacterial suspension. Collision efficiencies were determined from the column and field breakthrough data. The collision efficiencies estimated from field breakthrough generally decreased (did not significantly increase) with transport distance, as expected based on previous studies, whereas the collision efficiencies estimated from column breakthrough greatly increased with increased transport distance. Bacterial cell surface charge became progressively more negative for cells collected at greater distance in the field. We hypothesize that the apparent contradiction between field and column collision efficiencies was caused by difference in the degree of exposure of transported cells to quartz and iron oxide surfaces in the field and column sediment systems, and that the character of field-scale heterogeneity (geochemical and physical) plays a significant role in controlling the transport of bacteria. In the heterogeneous field system, the injected cells may be able to bypass surface sites favorable for attachment, whereas in the column system, the cells may be forced to interact with those sites. The different transport mechanisms for field and column systems may in part explain the observed difference between the two systems in collision efficiency as a function of transport distance. JF - Abstracts with Programs - Geological Society of America AU - Dong, Hailiang AU - Monkman, Crystal M AU - Scheibe, Timothy D AU - Fuller, Mark E AU - Johnson, William P AU - Anonymous Y1 - 2002/10// PY - 2002 DA - October 2002 SP - 157 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - experimental studies KW - Virginia KW - Comamonas KW - properties KW - Northampton County Virginia KW - samples KW - laboratory studies KW - Oyster Virginia KW - transport KW - bacteria KW - adhesion KW - Atlantic Coastal Plain KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51857836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Direct+determination+of+change+of+bacterial+collision+efficiency+with+transport+distance+in+field+scale+bacterial+transport+experiments&rft.au=Dong%2C+Hailiang%3BMonkman%2C+Crystal+M%3BScheibe%2C+Timothy+D%3BFuller%2C+Mark+E%3BJohnson%2C+William+P%3BAnonymous&rft.aulast=Dong&rft.aufirst=Hailiang&rft.date=2002-10-01&rft.volume=34&rft.issue=6&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2002 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - adhesion; Atlantic Coastal Plain; bacteria; Comamonas; experimental studies; laboratory studies; Northampton County Virginia; Oyster Virginia; properties; samples; transport; United States; Virginia ER - TY - JOUR T1 - Experimental determination of UO (sub 2) (cr) dissolution kinetics at high bicarbonate concentrations AN - 51840598; 2004-044588 AB - To evaluate the possibility of utilizing REDOX permeable reactive barriers for the remediation of uranium contamination, knowledge of the fundamental reaction kinetics associated with the dissolution of reduced uranium (IV) dioxide is necessary. Four decades of existing UO (sub 2+x) (cr) (0>1 to 0.9. We reacted the suite of glass compositions in Single-Pass Flow-Through (SPFT) experiments at T = 90 degrees C and pH = 10 under both highly undersaturated and near silica-saturated conditions for 1 hour to 10 days. Chemically complex glass specimens manifested extensive randomly oriented cracking after approximately 20 hours of reaction time. Cracking appeared to emanate from surface imperfections in the glass and showed signs of curling at edges, similar to mud cracks. We attribute this cracking to hydration and subsequent swelling of the glass during reaction. Experiments near silica saturation displayed the same characteristics, yet the extent of global surface retreat was less (by approximately 10X) than that observed for coupons at undersaturated conditions. This result is consistent with rates obtained by analysis of the chemistry of the effluent solution. In contrast, a simple sodium borosilicate glass composition displayed small (10 to 20 nanometer) elliptical pits after only 1 hour of reaction. With longer reaction times the pits developed along sub-parallel lines that coincide with flow banding structures in the glass. The origin of the pits is unclear, but may be related to phase separation in the glass. Our results demonstrate the efficacy of using VSI techniques to aid development of models for the reactivity of glass. JF - Abstracts with Programs - Geological Society of America AU - Icenhower, Jonathan P AU - Luttge, Andreas AU - McGrail, B Pete AU - Anonymous Y1 - 2002/10// PY - 2002 DA - October 2002 SP - 192 EP - 193 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 6 SN - 0016-7592, 0016-7592 KW - silicates KW - experimental studies KW - vertical scanning interferometry KW - solutions KW - effluents KW - rates KW - effects KW - solution KW - interferometry KW - reactivity KW - borosilicates KW - chemical reactions KW - quantitative analysis KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51837542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effects+of+aqueous+corrosion+on+borosilicate+glass+as+revealed+by+vertical+scanning+interferometry+%28VSI%29&rft.au=Icenhower%2C+Jonathan+P%3BLuttge%2C+Andreas%3BMcGrail%2C+B+Pete%3BAnonymous&rft.aulast=Icenhower&rft.aufirst=Jonathan&rft.date=2002-10-01&rft.volume=34&rft.issue=6&rft.spage=192&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2002 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - borosilicates; chemical reactions; effects; effluents; experimental studies; interferometry; quantitative analysis; rates; reactivity; silicates; solution; solutions; vertical scanning interferometry ER - TY - JOUR T1 - Crystal-mush compaction and differentiation in the Cohassett flood-basalt flow, Hanford, Washington AN - 51791759; 2004-077219 AB - The Columbia River Cohassett flood-basalt flow has complex chemical profiles in the central Columbia Basin that suggest it was formed by inflation, with the earlier top and bottom of the flow having compositions similar to the underlying TiO2-rich McCoy Canyon flow and the later central part having a composition similar to that of the overlying TiO2-poor Rocky Coulee-Museum flow. Considerable mixing of these magmas took place. In the flow's central part, however, the profiles were also modified when residual liquid was expelled upward by compaction of the crystal mush. The central part of the flow consequently has S-shaped profiles of compatible elements and Z-shaped profiles of incompatible elements. Textures in the flow's central part preserve a clear record of compaction. Most crystallization occurred rapidly in the roof zone from which plumes of dense crystal mush sank to the floor. As mush accumulated on the floor, the rapidly grown pyroxene crystals from above recrystallized into fine-grained granular aggregates of augite and pigeonite. With compaction, these granular patches flattened, and plagioclase phenocrysts were rotated toward the horizontal, many becoming bent or broken. Groundmass plagioclase laths surrounding pyroxene crystals in the roof zone are randomly oriented and are separated by large volumes of glass. In the compaction zone, however, these same laths surrounding granular patches of pyroxene rotated into clusters of tightly packed parallel crystals, many in an imbricate pattern, and by so doing reduced the percentage of interstitial liquid. A striking compaction texture, for which we propose the name "lintel" texture, is formed where groundmass plagioclase laths have packed down on horizontal plagioclase phenocrysts (the lintel). Immediately beneath such phenocrysts, the groundmass laths tend to be more randomly and openly stacked, with considerable quantities of interstitial residual liquid that was prevented from rising past the phenocryst cap. This asymmetric texture is clearly visible in vertically oriented thin sections. Quantitative measures of the textural anisotropy indicate that compaction reached a 35% maximum where the incompatible element concentrations in the flow reached a minimum. JF - Abstracts with Programs - Geological Society of America AU - Philpotts, Anthony R AU - Reidel, Stephen P AU - Philpotts, Doreen E AU - Anonymous Y1 - 2002/10// PY - 2002 DA - October 2002 SP - 268 EP - 269 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - flood basalts KW - Cohassett Flow KW - volcanic rocks KW - igneous rocks KW - thin sections KW - recrystallization KW - Cenozoic KW - mineral composition KW - quantitative analysis KW - mixing KW - basalts KW - chemical composition KW - Washington KW - patterns KW - textures KW - matrix KW - differentiation KW - Columbia River Basalt Group KW - Hanford Site KW - Miocene KW - measurement KW - compaction KW - Tertiary KW - Neogene KW - magmas KW - crystallization KW - phenocrysts KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51791759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Crystal-mush+compaction+and+differentiation+in+the+Cohassett+flood-basalt+flow%2C+Hanford%2C+Washington&rft.au=Philpotts%2C+Anthony+R%3BReidel%2C+Stephen+P%3BPhilpotts%2C+Doreen+E%3BAnonymous&rft.aulast=Philpotts&rft.aufirst=Anthony&rft.date=2002-10-01&rft.volume=34&rft.issue=6&rft.spage=268&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2002 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2004-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - basalts; Cenozoic; chemical composition; Cohassett Flow; Columbia River Basalt Group; compaction; crystallization; differentiation; flood basalts; Hanford Site; igneous rocks; magmas; matrix; measurement; mineral composition; Miocene; mixing; Neogene; patterns; phenocrysts; quantitative analysis; recrystallization; Tertiary; textures; thin sections; United States; volcanic rocks; Washington ER - TY - JOUR T1 - The Inherent Biases in Environmental Research and Their Effects on Public Policy AN - 60458485; 200304990 AB - Three types of bias: personal, institutional, & sociocultural, will be examined together with their effects on public policy. Personal bias exists whenever a scientist, instead of being solely motivated by the search for empirical truth, tries to gain a personal benefit or advantage from research results or is unduly influenced by ideological commitments. Institutional bias occurs because "every institution directs its activities to the perpetuation of its own power & to a narrow range of objectives & missions" (Barbour IG, Technology, environment, & human values. New York: Praeger, 1980). Sociocultural bias in Western industrialized society is reflected by the fact that most research is narrowly focused only on the mechanistic understanding of natural phenomena, a bias which arose from the discovery that mechanistic knowledge enhances the "control" & exploitation of nature. Based on a detailed analysis of each kind of bias, it will be shown that self-interest, whether that of an individual scientist, a funding institution, or an entire society, is the primary cause of bias in environmental research. In general, the greater the stakes, the greater the distortion of objectivity, & the greater the likelihood that environmental policies are biased in favor of the entity that is afflicted by the excessive self-interest. Finally, a number of recommendations are given on how to minimize each type of bias & thereby maximize the effectiveness of environmental policies. 37 References. Adapted from the source document. JF - Futures AU - Huesemann, Michael H AD - Pacific Northwest National Laboratory/Marine Science, Sequim, WA michael.huesemann@pnl.gov Y1 - 2002/09// PY - 2002 DA - September 2002 SP - 621 EP - 633 VL - 34 IS - 7 SN - 0016-3287, 0016-3287 KW - Subjectivity KW - Policy Making KW - Scientific Research KW - Environmental Policy KW - Public Policy KW - Bias KW - article KW - 2462: policy, planning, forecasting; policy sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/60458485?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asocabs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Futures&rft.atitle=The+Inherent+Biases+in+Environmental+Research+and+Their+Effects+on+Public+Policy&rft.au=Huesemann%2C+Michael+H&rft.aulast=Huesemann&rft.aufirst=Michael&rft.date=2002-09-01&rft.volume=34&rft.issue=7&rft.spage=621&rft.isbn=&rft.btitle=&rft.title=Futures&rft.issn=00163287&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - CODEN - FUTUBD N1 - SubjectsTermNotLitGenreText - Bias; Subjectivity; Scientific Research; Public Policy; Environmental Policy; Policy Making ER - TY - JOUR T1 - Ab initio quantum mechanical modeling of infrared vibrational frequencies of the OH group in dioctahedral phyllosilicates; Part II, Main physical factors governing the OH vibrations AN - 52065289; 2002-067180 AB - The physical factors responsible for the variability observed in OH infrared (IR) fundamentals in dioctahedral phyllosilicates, due to octahedral substitution of Al (super 3+) by Mg (super 2+) , Fe (super 2+) , and Fe (super 3+) , are discussed here. The data analyzed consist of experimental frequencies as well as frequencies modeled using Density Functional Theory (DFT) calculations. The charge of the octahedral cations surrounding the OH is one of the main factors affecting both the OH stretch and the in-plane bend; cationic electronegativity and ionic radius play important roles in the stretch and bend modes, respectively. The mass of the octahedral cations does not affect the OH fundamental vibrations. The nature of the octahedral cations alone can explain most of the variability observed in the OH in-plane bend, making this fundamental vibration the most suitable for assessing octahedral composition. Discrepancies between modeled and experimental OH stretch frequencies indicate the existence of other factors governing this fundamental vibration. Further DFT calculations indicate that apical O atoms of the tetrahedral sheet with unsatisfied charges due to octahedral and/or tetrahedral substitutions can explain these discrepancies. The modeling results are utilized to predict the frequency of the OH stretch and in-plane-bend combination band that occurs near 4545 cm (super -1) (2.2 mu m) in phyllosilicates. This band can be observed in imaging spectrometer data, allowing for the detection and analysis of phyllosilicates and other minerals in large natural systems. The modeling results confirm that the variability observed in the combination band of dioctahedral phyllosilicates reflects octahedral and, to a certain degree, tetrahedral composition, but not interlayer composition. JF - American Mineralogist AU - Martinez-Alonso, Sara AU - Rustad, James R AU - Goetz, Alexander F H Y1 - 2002/09// PY - 2002 DA - September 2002 SP - 1224 EP - 1234 PB - Mineralogical Society of America, Washington, DC VL - 87 IS - 8-9 SN - 0003-004X, 0003-004X KW - silicates KW - mechanical properties KW - frequency KW - electronegativity KW - infrared spectra KW - models KW - hydroxides KW - physical properties KW - vibration KW - oxides KW - cations KW - sheet silicates KW - spectra KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52065289?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Ab+initio+quantum+mechanical+modeling+of+infrared+vibrational+frequencies+of+the+OH+group+in+dioctahedral+phyllosilicates%3B+Part+II%2C+Main+physical+factors+governing+the+OH+vibrations&rft.au=Martinez-Alonso%2C+Sara%3BRustad%2C+James+R%3BGoetz%2C+Alexander+F+H&rft.aulast=Martinez-Alonso&rft.aufirst=Sara&rft.date=2002-09-01&rft.volume=87&rft.issue=8-9&rft.spage=1224&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 44 N1 - PubXState - DC N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - cations; electronegativity; frequency; hydroxides; infrared spectra; mechanical properties; models; oxides; physical properties; sheet silicates; silicates; spectra; vibration ER - TY - JOUR T1 - Ab initio quantum mechanical modeling of infrared vibrational frequencies of the OH group in dioctahedral phyllosilicates; Part I, Methods, results and comparison to experimental data AN - 52061755; 2002-067179 AB - The infrared (IR) spectra of small clusters of atoms ([MM'(OH) (sub 2) ] and [MM'(OH) (sub 2) (H (sub 2) O) (sub 6) ], where M, M'= Al (super 3+) , Mg (super 2+) , Fe (super 2+) , Fe (super 3+) ) mimicking the environment of the OH group in dioctahedral phyllosilicates have been modeled using ab initio quantum mechanical calculations. These modeling results are relevant to establishing the connections between IR spectra of phyllosilicates and their composition, and to investigate the utility of quantum mechanical models for calculating IR frequencies of minerals. This study focused on the OH stretch and in-plane bend fundamentals, because they give rise to a combination band near 4545 cm (super -1) (2.2 mu m) that can be observed in imaging spectrometer or hyperspectral remote sensing data. A comparison among results obtained using both ab initio [Hartree-Fock (HF) and Density Functional Theory (DFT)], and semi-empirical [PM3(tm)] methods, showed that the DFT model approaches IR frequency experimental values most closely. IR spectra of phyllosilicates were modeled using the DFT method. The modeled frequencies were scaled using a mode-dependent linear transformation, and experimental frequencies were reproduced satisfactorily. The modeling results show that most of the variability observed in the OH in-plane bend fundamental of dioctahedral phyllosilicates can be explained by the effects of neighboring octahedral cations alone. Discrepancies between modeling and experimental results in the case of the OH stretch point to the existence of factors other than the nature of the neighboring octahedral cations, such as tetrahedral substitution, affecting this fundamental mode. JF - American Mineralogist AU - Martinez-Alonso, Sara AU - Rustad, James R AU - Goetz, Alexander F H Y1 - 2002/09// PY - 2002 DA - September 2002 SP - 1215 EP - 1223 PB - Mineralogical Society of America, Washington, DC VL - 87 IS - 8-9 SN - 0003-004X, 0003-004X KW - silicates KW - models KW - hydroxides KW - experimental studies KW - vibration KW - oxides KW - sheet silicates KW - mechanical properties KW - spectra KW - frequency KW - infrared spectra KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52061755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Ab+initio+quantum+mechanical+modeling+of+infrared+vibrational+frequencies+of+the+OH+group+in+dioctahedral+phyllosilicates%3B+Part+I%2C+Methods%2C+results+and+comparison+to+experimental+data&rft.au=Martinez-Alonso%2C+Sara%3BRustad%2C+James+R%3BGoetz%2C+Alexander+F+H&rft.aulast=Martinez-Alonso&rft.aufirst=Sara&rft.date=2002-09-01&rft.volume=87&rft.issue=8-9&rft.spage=1215&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 70 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - experimental studies; frequency; hydroxides; infrared spectra; mechanical properties; models; oxides; sheet silicates; silicates; spectra; vibration ER - TY - RPRT T1 - Hanford Site; environmental report for calendar year 2001 AN - 51962373; 2003-054844 JF - Hanford Site; environmental report for calendar year 2001 A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2002/09// PY - 2002 DA - September 2002 KW - United States KW - Resource Conservation and Recovery Act KW - soil vapor extraction KW - annual report KW - Grant County Washington KW - Franklin County Washington KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - environmental management KW - report KW - pump-and-treat KW - Benton County Washington KW - Superfund sites KW - soils KW - hydrology KW - programs KW - Washington KW - monitoring KW - pollutants KW - effluents KW - pollution KW - Hanford Site KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51962373?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2002-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+Site%3B+environmental+report+for+calendar+year+2001&rft.title=Hanford+Site%3B+environmental+report+for+calendar+year+2001&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Department of Commerce, National Technical Information Service, Springfield, VA, United States N1 - Document feature - illus. incl. 99 tables, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Rate controls for heterogeneous electron transfer at Fe(III)-oxide surfaces AN - 51679233; 2005-063976 JF - Abstracts of the ... General Meeting of the International Mineralogical Association AU - Rosso, Kevin M AU - Zachara, J M AU - Parsons, Ian Y1 - 2002/09// PY - 2002 DA - September 2002 SP - 106 PB - International Mineralogical Association, [location varies] VL - 18 KW - iron oxides KW - coordination KW - bonding KW - iron KW - hydroxyl ion KW - ferric iron KW - hematite KW - metals KW - theoretical models KW - oxides KW - heterogeneity KW - mineral surface KW - Eh KW - electrons KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51679233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+the+...+General+Meeting+of+the+International+Mineralogical+Association&rft.atitle=Rate+controls+for+heterogeneous+electron+transfer+at+Fe%28III%29-oxide+surfaces&rft.au=Rosso%2C+Kevin+M%3BZachara%2C+J+M%3BParsons%2C+Ian&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2002-09-01&rft.volume=18&rft.issue=&rft.spage=106&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+the+...+General+Meeting+of+the+International+Mineralogical+Association&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 18th general meeting of the International Mineralogical Association N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #03852 N1 - SubjectsTermNotLitGenreText - bonding; coordination; Eh; electrons; ferric iron; hematite; heterogeneity; hydroxyl ion; iron; iron oxides; metals; mineral surface; oxides; theoretical models ER - TY - JOUR T1 - Potential proton sites in high-pressure silicates AN - 51676920; 2005-063888 JF - Abstracts of the ... General Meeting of the International Mineralogical Association AU - Ross, N L AU - Gibbs, G V AU - Rosso, Kevin M AU - Parsons, Ian Y1 - 2002/09// PY - 2002 DA - September 2002 SP - 80 PB - International Mineralogical Association, [location varies] VL - 18 KW - silicates KW - silica minerals KW - coordination KW - olivine group KW - crystal structure KW - bonding KW - protons KW - solution KW - perovskite structure KW - coesite KW - ringwoodite KW - laboratory studies KW - theoretical studies KW - phase equilibria KW - wadsleyite KW - orthosilicates KW - framework silicates KW - synthesis KW - P-T conditions KW - electrons KW - water KW - experimental studies KW - pressure KW - physicochemical properties KW - high pressure KW - nesosilicates KW - hydration KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51676920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+the+...+General+Meeting+of+the+International+Mineralogical+Association&rft.atitle=Potential+proton+sites+in+high-pressure+silicates&rft.au=Ross%2C+N+L%3BGibbs%2C+G+V%3BRosso%2C+Kevin+M%3BParsons%2C+Ian&rft.aulast=Ross&rft.aufirst=N&rft.date=2002-09-01&rft.volume=18&rft.issue=&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+the+...+General+Meeting+of+the+International+Mineralogical+Association&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 18th general meeting of the International Mineralogical Association N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #03852 N1 - SubjectsTermNotLitGenreText - bonding; coesite; coordination; crystal structure; electrons; experimental studies; framework silicates; high pressure; hydration; laboratory studies; nesosilicates; olivine group; orthosilicates; P-T conditions; perovskite structure; phase equilibria; physicochemical properties; pressure; protons; ringwoodite; silica minerals; silicates; solution; synthesis; theoretical studies; wadsleyite; water ER - TY - JOUR T1 - Influence of Mn oxides on the reduction of uranium(VI) by the metal-reducing bacterium Shewanella putrefaciens AN - 51336023; 2002-075029 AB - The potential for Mn oxides to modify the biogeochemical behavior of U during reduction by the subsurface bacterium Shewanella putrefaciens strain CN32 was investigated using synthetic Mn(III/IV) oxides (pyrolusite [beta -MnO (sub 2) ], bixbyite [Mn (sub 2) O (sub 3) ] and K (super +) -birnessite [K (sub 4) Mn (sub 14) O (sub 27) .8H (sub 2) O]). In the absence of bacteria, pyrolusite and bixbyite oxidized biogenic uraninite (UO (sub 2) [s]) to soluble U(VI) species, with bixbyite being the most rapid oxidant. The Mn(III/IV) oxides lowered the bioreduction rate of U(VI) relative to rates in their absence or in the presence of gibbsite (Al[OH] (sub 3) ) added as a non-redox-reactive surface. Evolved Mn(II) increased with increasing initial U(VI) concentration in the biotic experiments, indicating that valence cycling of U facilitated the reduction of Mn(III/IV). Despite an excess of the Mn oxide, 43 to 100% of the initial U was bioreduced after extended incubation. Analysis of thin sections of bacterial Mn oxide suspensions revealed that the reduced U resided in the periplasmic space of the bacterial cells. However, in the absence of Mn(III/IV) oxides, UO (sub 2) (s) accumulated as copious fine-grained particles external to the cell. These results indicate that the presence of Mn(III/IV) oxides may impede the biological reduction of U(VI) in subsoils and sediments. However, the accumulation of U(IV) in the cell periplasm may physically protect reduced U from oxidation, promoting at least a temporal state of redox disequilibria. JF - Geochimica et Cosmochimica Acta AU - Fredrickson, James K AU - Zachara, John M AU - Kennedy, David W AU - Liu, Chongxuan AU - Duff, Martine C AU - Hunter, Douglas B AU - Dohnalkova, Alice Y1 - 2002/09// PY - 2002 DA - September 2002 SP - 3247 EP - 3262 PB - Pergamon, Oxford VL - 66 IS - 18 SN - 0016-7037, 0016-7037 KW - X-ray diffraction data KW - data processing KW - Shewanella putrefaciens KW - organo-metallics KW - X-ray spectra KW - TEM data KW - Shewanella KW - XANES spectra KW - biogenic processes KW - metals KW - Fourier analysis KW - bacteria KW - manganese oxides KW - EXAFS data KW - oxides KW - uranium KW - spectra KW - reduction KW - geochemistry KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51336023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Influence+of+Mn+oxides+on+the+reduction+of+uranium%28VI%29+by+the+metal-reducing+bacterium+Shewanella+putrefaciens&rft.au=Fredrickson%2C+James+K%3BZachara%2C+John+M%3BKennedy%2C+David+W%3BLiu%2C+Chongxuan%3BDuff%2C+Martine+C%3BHunter%2C+Douglas+B%3BDohnalkova%2C+Alice&rft.aulast=Fredrickson&rft.aufirst=James&rft.date=2002-09-01&rft.volume=66&rft.issue=18&rft.spage=3247&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900928-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2002-01-01 N1 - Number of references - 72 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; bacteria; biogenic processes; data processing; EXAFS data; Fourier analysis; geochemistry; manganese oxides; metals; organo-metallics; oxides; reduction; Shewanella; Shewanella putrefaciens; spectra; TEM data; uranium; X-ray diffraction data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/S0016-7037(02)00928-6 ER - TY - JOUR T1 - Sources and migration of plutonium in groundwater at the Savannah River Site AN - 50274018; 2007-100486 JF - Environmental Science & Technology, ES & T AU - Dai, Minhan AU - Kelley, James M AU - Buesseler, Ken O Y1 - 2002/09// PY - 2002 DA - September 2002 SP - 3690 EP - 3699 PB - American Chemical Society, Washington, DC VL - 36 IS - 17 SN - 0013-936X, 0013-936X KW - United States KW - Pu-240/Pu-239 KW - aquifer vulnerability KW - concentration KW - in situ KW - South Carolina KW - isotopes KW - plutonium KW - isotope ratios KW - pollution KW - observation wells KW - migration of elements KW - environmental analysis KW - seepage KW - ground water KW - aquifers KW - radioactive isotopes KW - detection KW - metals KW - nuclear facilities KW - Savannah River Site KW - actinides KW - chemical fractionation KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50274018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Sources+and+migration+of+plutonium+in+groundwater+at+the+Savannah+River+Site&rft.au=Dai%2C+Minhan%3BKelley%2C+James+M%3BBuesseler%2C+Ken+O&rft.aulast=Dai&rft.aufirst=Minhan&rft.date=2002-09-01&rft.volume=36&rft.issue=17&rft.spage=3690&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 48 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; aquifer vulnerability; aquifers; chemical fractionation; concentration; detection; environmental analysis; ground water; in situ; isotope ratios; isotopes; metals; migration of elements; nuclear facilities; observation wells; plutonium; pollution; Pu-240/Pu-239; radioactive isotopes; Savannah River Site; seepage; South Carolina; United States ER - TY - JOUR T1 - Relationships between soil microbial biomass determined by chloroform fumigation-extraction, substrate-induced respiration, and phospholipid fatty acid analysis AN - 18607654; 5515933 AB - The soil microbial biomass (SMB) is responsible for many of the cycles and transformations of nutrients in soils. Three methods of measuring and describing this pool in soil are: (1) chloroform fumigation-extraction (CFE), (2) substrate-induced respiration, and (3) total extractable phospholipid fatty acids (PLFA). This study was conducted to seek a relationship between microbial PLFA and measures of SMB. Microbial PLFA was best predicted by CFE (R super(2) = 0.77); 1 nmol of PLFA corresponded to a flush of 2.4 mu g C released by fumigation. This conversion factor will be useful in discussions of microbial populations and diversity and allow comparisons to literature in which only CFE is used to describe the size of the microbial biomass. JF - Soil Biology and Biochemistry AU - Bailey, V L AU - Peacock, AD AU - Smith, J L AU - Bolton, H Jr AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, MSIN P7-50, Richland, WA 99352, USA, vanessa.bailey@pnl.gov Y1 - 2002/09// PY - 2002 DA - Sep 2002 SP - 1385 EP - 1389 VL - 34 IS - 9 SN - 0038-0717, 0038-0717 KW - Ecology Abstracts KW - D 04001:Methodology - general KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18607654?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Relationships+between+soil+microbial+biomass+determined+by+chloroform+fumigation-extraction%2C+substrate-induced+respiration%2C+and+phospholipid+fatty+acid+analysis&rft.au=Bailey%2C+V+L%3BPeacock%2C+AD%3BSmith%2C+J+L%3BBolton%2C+H+Jr&rft.aulast=Bailey&rft.aufirst=V&rft.date=2002-09-01&rft.volume=34&rft.issue=9&rft.spage=1385&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - DNA-Targeted 2-Nitroimidazoles: Studies of the Influence of the Phenanthridine-Linked Nitroimidazoles, 2-NLP-3 and 2-NLP-4, on DNA Damage Induced by Ionizing Radiation AN - 18461034; 5439287 AB - The nitroimidazole-linked phenanthridines 2-NLP-3 (5-[3-(2-nitro-1-imidazoyl)-propyl]-phenanthridinium bromide) and 2-NLP-4 (5-[3-(2-nitro-1-imidazoyl)-butyl]-phenanthridinium bromide) are composed of the radiosensitizer, 2-nitroimidazole, attached to the DNA intercalator phenanthridine by a 3- and 4-carbon linker, respectively. Previous in vitro assays showed both compounds to be 10-100 times more efficient as hypoxic cell radiosensitizers (based on external drug concentrations) than the untargeted 2-nitroimidazole radiosensitizer, misonidazole (Cowan et al., Radiat. Res. 127, 81-89, 1991). Here we have used a 32P postlabeling assay and 5'-end-labeled oligonucleotide assay to compare the radiation-induced DNA damage generated in the presence of 2-NLP-3, 2-NLP-4, phenanthridine and misonidazole. After irradiation of the DNA under anoxic conditions, we observed a significantly greater level of 3'-phosphoglycolate DNA damage in the presence of 2-NLP-3 or 2-NLP-4 compared to irradiation of the DNA in the presence of misonidazole. This may account at least in part for the greater cellular radiosensitization shown by the nitroimidazole-linked phenanthridines over misonidazole. Of the two nitroimidazole-linked phenanthridines, the better in vitro radiosensitizer, 2-NLP-4, generated more 3'-phosphoglycolate in DNA than did 2-NLP-3. At all concentrations, phenanthridine had little effect on the levels of DNA damage, suggesting that the enhanced radiosensitization displayed by 2-NLP-3 and 2-NLP-4 is due to the localization of the 2-nitroimidazole to the DNA by the phenanthridine substituent and not to radiosensitization by the phenanthridine moiety itself. JF - Radiation Research AU - Buchko, G W AU - Weinfeld, M AD - Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99352, michaelw@cancerboard.ab.ca Y1 - 2002/09// PY - 2002 DA - Sep 2002 SP - 302 EP - 310 PB - The Radiation Research Society VL - 158 IS - 3 SN - 0033-7587, 0033-7587 KW - Toxicology Abstracts KW - X 24210:Radiation & radioactive materials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18461034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+Research&rft.atitle=DNA-Targeted+2-Nitroimidazoles%3A+Studies+of+the+Influence+of+the+Phenanthridine-Linked+Nitroimidazoles%2C+2-NLP-3+and+2-NLP-4%2C+on+DNA+Damage+Induced+by+Ionizing+Radiation&rft.au=Buchko%2C+G+W%3BWeinfeld%2C+M&rft.aulast=Buchko&rft.aufirst=G&rft.date=2002-09-01&rft.volume=158&rft.issue=3&rft.spage=302&rft.isbn=&rft.btitle=&rft.title=Radiation+Research&rft.issn=00337587&rft_id=info:doi/10.1043%2F0033-7587%282002%29158%280302%3ADTNSOT%292.0.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1043/0033-7587(2002)158(0302:DTNSOT)2.0.CO;2 ER - TY - JOUR T1 - Role for NMR in structural genomics AN - 1034817010; 17027036 AB - The 2nd EMSL Workshop on Structural Genomics was held on 28th and 29th July 2000 at the Environmental Molecular Sciences Laboratory at the Department of Energy's Pacific Northwest National Laboratory in Richland, WA. The workshop focused on four topics: 1. The role for NMR in structural and functional genomics; 2. The technical challenges NMR faces for structural and functional genomics; 3. The potential need for a national NMR center for structural and functional genomics in the United States; and 4. Organization of the NMR community. This report summarizes the workshop proceedings and conclusions reached regarding the role of NMR in the emerging fields of structural and functional genomics. JF - Journal of Structural and Functional Genomics AU - Kennedy, Michael A AU - Montelione, Gaetano T AU - Arrowsmith, Cheryl H AU - Markley, John L AD - Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, 99352, USA Y1 - 2002/09// PY - 2002 DA - Sep 2002 SP - 155 EP - 169 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 2 IS - 3 SN - 1345-711X, 1345-711X KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts KW - Conferences KW - Energy KW - N.M.R. KW - Structure-function relationships KW - genomics KW - W 30910:Imaging KW - G 07880:Human Genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1034817010?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Structural+and+Functional+Genomics&rft.atitle=Role+for+NMR+in+structural+genomics&rft.au=Kennedy%2C+Michael+A%3BMontelione%2C+Gaetano+T%3BArrowsmith%2C+Cheryl+H%3BMarkley%2C+John+L&rft.aulast=Kennedy&rft.aufirst=Michael&rft.date=2002-09-01&rft.volume=2&rft.issue=3&rft.spage=155&rft.isbn=&rft.btitle=&rft.title=Journal+of+Structural+and+Functional+Genomics&rft.issn=1345711X&rft_id=info:doi/10.1023%2FA%3A1021261026670 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-08-01 N1 - Last updated - 2012-09-10 N1 - SubjectsTermNotLitGenreText - Conferences; Structure-function relationships; Energy; N.M.R.; genomics DO - http://dx.doi.org/10.1023/A:1021261026670 ER - TY - JOUR T1 - Global analysis of the Deinococcus radiodurans proteome by using accurate mass tags AN - 18453403; 5431877 AB - Understanding biological systems and the roles of their constituents is facilitated by the ability to make quantitative, sensitive, and comprehensive measurements of how their proteome changes, e.g., in response to environmental perturbations. To this end, we have developed a high-throughput methodology to characterize an organism's dynamic proteome based on the combination of global enzymatic digestion, high-resolution liquid chromatographic separations, and analysis by Fourier transform ion cyclotron resonance mass spectrometry. The peptides produced serve as accurate mass tags for the proteins and have been used to identify with high confidence >61% of the predicted proteome for the ionizing radiation-resistant bacterium Deinococcus radiodurans. This fraction represents the broadest proteome coverage for any organism to date and includes 715 proteins previously annotated as either hypothetical or conserved hypothetical. JF - Proceedings of the National Academy of Sciences, USA AU - Lipton AU - Pasa-Tolic, L AU - Anderson, G A AU - Anderson, D J AU - Auberry, D L AU - Battista, J R AU - Daly, MJ AU - Fredrickson, J AU - Hixson, K K AU - Kostandarithes, H AU - Masselon, C AU - Markillie, L M AU - Moore, R J AU - Romine, M F AD - Environmental Molecular Sciences Laboratory, Biogeochemistry, Molecular Biosciences, Pacific Northwest National Laboratory, P.O. Box 999, MSIN: K8-98, Richland, WA 99352, rds@pnl.gov Y1 - 2002/08/20/ PY - 2002 DA - 2002 Aug 20 SP - 11049 EP - 11054 VL - 99 IS - 17 SN - 0027-8424, 0027-8424 KW - analysis KW - proteomes KW - Biotechnology and Bioengineering Abstracts; Bioengineering Abstracts; Microbiology Abstracts B: Bacteriology KW - W 30965:Miscellaneous, Reviews KW - W4 350:Bioinformatics KW - J 02727:Amino acids, peptides and proteins UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18453403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.atitle=Global+analysis+of+the+Deinococcus+radiodurans+proteome+by+using+accurate+mass+tags&rft.au=Lipton%3BPasa-Tolic%2C+L%3BAnderson%2C+G+A%3BAnderson%2C+D+J%3BAuberry%2C+D+L%3BBattista%2C+J+R%3BDaly%2C+MJ%3BFredrickson%2C+J%3BHixson%2C+K+K%3BKostandarithes%2C+H%3BMasselon%2C+C%3BMarkillie%2C+L+M%3BMoore%2C+R+J%3BRomine%2C+M+F&rft.aulast=Lipton&rft.aufirst=&rft.date=2002-08-20&rft.volume=99&rft.issue=17&rft.spage=11049&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.172170199 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1073/pnas.172170199 ER - TY - JOUR T1 - Phorbol ester induces elevated oxidative activity and alkalization in a subset of lysosomes. AN - 71978616; 12165102 AB - BACKGROUNDLysosomes are acidic organelles that play multiple roles in various cellular oxidative activities such as the oxidative burst during cytotoxic killing. It remains to be determined how lysosomal lumen oxidative activity and pH interact and are regulated. Here, I report the use of fluorescent probes to measure oxidative activity and pH of lysosomes in live macrophages upon treatment with the tumor promotor phorbol 12-myristate 13-acetate (PMA), and providing new insight on regulation mechanism of oxidative activity and pH.RESULTSThe substrate used to measure oxidative activity was bovine serum albumin covalently coupled to dihydro-2',4,5,6,7,7'-hexafluorofluorescein (OxyBURST Green H2HFF BSA). During pulse-chase procedures with live macrophages, this reduced dye was internalized through an endocytic pathway and accumulated in the lysosomes. Oxidation of this compound, which results in fluorescence increases, depends on the redox potential in the lysosomal lumen. By using low-light level fluorescence microscopy, I determined that phorbol ester treatment results in increased oxidative activity and pH elevation in different subsets of lysosomes. Furthermore, lysosomes with stronger oxidative activity tend to exclude an acidotropic lysosomal indicator, and thus exhibit higher alkalinity.CONCLUSIONResults indicate that there is a regulatory mechanism between lysosomal oxidative activity and pH. Activation of lysosomal Nicotinamide Adenine Dinucleotide Phosphate (NADPH) oxidase by phorbol ester may result in increase of intralysosomal O2- and H2O2, concurrent with pH elevation due to consumption of H+ and generation of OH-. Furthermore, effect of phorbol ester on elevated oxidative activity and pH is heterogeneous among total lysosomal population. Higher oxidative activity and/or pH are only observed in subsets of lysosomes. JF - BMC cell biology AU - Chen, Chii-Shiarng AD - Molecular Bioscience, Pacific Northwest National Laboratory, Richland, WA 99352, USA. chii-shiarng.chen@pnl.gov Y1 - 2002/08/06/ PY - 2002 DA - 2002 Aug 06 SP - 21 VL - 3 KW - Fluorescent Dyes KW - 0 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Oxidation-Reduction KW - Microscopy, Fluorescence KW - Animals KW - Macrophages -- chemistry KW - Hydrogen-Ion Concentration -- drug effects KW - Mice KW - Fluorescent Dyes -- chemistry KW - Macrophages -- drug effects KW - Models, Biological KW - Cell Line KW - Macrophages -- metabolism KW - Lysosomes -- chemistry KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Lysosomes -- metabolism KW - Lysosomes -- drug effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71978616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMC+cell+biology&rft.atitle=Phorbol+ester+induces+elevated+oxidative+activity+and+alkalization+in+a+subset+of+lysosomes.&rft.au=Chen%2C+Chii-Shiarng&rft.aulast=Chen&rft.aufirst=Chii-Shiarng&rft.date=2002-08-06&rft.volume=3&rft.issue=&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=BMC+cell+biology&rft.issn=1471-2121&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-08-23 N1 - Date created - 2002-08-07 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Virchows Arch B Cell Pathol Incl Mol Pathol. 1993;64(6):401-6 [8148962] J Leukoc Biol. 1989 Mar;45(3):239-48 [2538531] APMIS. 1988 Jan;96(1):3-13 [3278721] Blood. 1986 Feb;67(2):334-42 [3002523] J Clin Invest. 1981 May;67(5):1541-9 [7229038] J Cell Biol. 1996 Nov;135(3):611-22 [8909537] Metabolism. 1996 Sep;45(9):1069-79 [8781293] J Immunol Methods. 1990 Jul 3;130(2):223-33 [2165099] Crit Rev Biochem Mol Biol. 1990;25(6):385-414 [2127241] Proc Natl Acad Sci U S A. 1998 May 26;95(11):6373-8 [9600972] Histochem J. 1997 Nov-Dec;29(11-12):857-65 [9466153] Biophys J. 1998 Jan;74(1):90-7 [9449313] Bioessays. 1996 Nov;18(11):895-903 [8939067] Clin Chim Acta. 1999 Feb;280(1-2):173-9 [10090534] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A re-evaluation of the 131I atmospheric releases from the Hanford site. AN - 71929772; 12132709 AB - The atmospheric release of 131I from the Hanford site for the 1950's and 1960's, focused on the period of releases after the year 1950, has been re-evaluated using processing plant stack monitoring data to address a series of questions and concerns that have arisen related to the source term. Historical stack monitoring data have been used to re-assess the releases by creating either a release factor to use with the calculated plant throughput or using the stack monitoring results as the basic estimate, and the results have been verified using historical atmospheric monitoring data from a location several kilometers distant. Uncertainties in all of the historical data have been addressed in the re-assessment. Compared to the original estimate between 1950 and 1971 of 2.46 +/- 0.71 PBq, the stack monitoring results show a release of 131I to the atmosphere of 1.55 +/- 0.23 PBq. The concurrent atmospheric monitoring results imply a release of 1.75 +/- 0.11 PBq over the same period, but this result is inflated by inclusion of global fallout The total effective dose estimated to a full-time, nearby adult resident from 131I using the Heeb source term from 1950 through 1972 is 0.73 mSv; using the source term based on stack monitoring data in the Hanford Environmental Dose Reconstruction project models, it is 0.51 mSv. JF - Health physics AU - Napier, B A AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. Bruce.Napier@pnl.gov Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 204 EP - 226 VL - 83 IS - 2 SN - 0017-9078, 0017-9078 KW - Air Pollutants, Radioactive KW - 0 KW - Iodine Radioisotopes KW - Index Medicus KW - Radiation Dosage KW - Washington KW - Time Factors KW - Radiation Monitoring KW - Iodine Radioisotopes -- analysis KW - Air Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71929772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=A+re-evaluation+of+the+131I+atmospheric+releases+from+the+Hanford+site.&rft.au=Napier%2C+B+A&rft.aulast=Napier&rft.aufirst=B&rft.date=2002-08-01&rft.volume=83&rft.issue=2&rft.spage=204&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-07-31 N1 - Date created - 2002-07-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Prediction of diffusion coefficients in porous media using tortuosity factors based in interfacial areas AN - 52076256; 2002-062363 JF - Ground Water AU - Saripalli, K Prasad AU - Serne, R Jeffrey AU - Meyer, Philip D AU - McGrail, B Peter Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 346 EP - 352 PB - Water Well Journal Pub. Co., Worthington, OH VL - 40 IS - 4 SN - 0017-467X, 0017-467X KW - solute transport KW - diffusion KW - pollutants KW - tortuosity KW - pollution KW - porous materials KW - constrictivity KW - porosity KW - ground water KW - aquifers KW - models KW - saturated zone KW - factors KW - transport KW - saturation KW - mathematical methods KW - hydrodynamics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52076256?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Prediction+of+diffusion+coefficients+in+porous+media+using+tortuosity+factors+based+in+interfacial+areas&rft.au=Saripalli%2C+K+Prasad%3BSerne%2C+R+Jeffrey%3BMeyer%2C+Philip+D%3BMcGrail%2C+B+Peter&rft.aulast=Saripalli&rft.aufirst=K&rft.date=2002-08-01&rft.volume=40&rft.issue=4&rft.spage=346&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 38 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2016-10-25 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aquifers; constrictivity; diffusion; factors; ground water; hydrodynamics; mathematical methods; models; pollutants; pollution; porosity; porous materials; saturated zone; saturation; solute transport; tortuosity; transport ER - TY - JOUR T1 - EXAFS study of rare-earth element coordination in calcite AN - 52067502; 2002-064974 AB - Extended X-ray absorption fine-structure (EXAFS) spectroscopy is used to characterize the local coordination of selected rare-earth elements (Nd (super 3+) , Sm (super 3+) , Dy (super 3+) , Yb (super 3+) ) coprecipitated with calcite in minor concentrations from room-temperature aqueous solutions. Fitting results confirm substitution in the Ca site, but first-shell Nd-O and Sm-O distances are longer than the Ca-O distance in calcite and longer than what is consistent with ionic radii sums for sixfold coordination in the octahedral Ca site. In contrast, first-shell Dy-O and Yb-O distances are shorter than the Ca-O distance and are consistent with ionic radii sums for sixfold coordination. Comparison of Nd-O and Sm-O bond lengths with those in lanthanide sesquioxides and with ionic radii trends across the lanthanide series suggests that Nd (super 3+) and Sm (super 3+) have sevenfold coordination in a modified Ca site in calcite. This would require some disruption of the local structure, with an expected decrease in stability, and possibly a different charge compensation mechanism between Nd and Sm vs. Yb and Dy. A possible explanation for the increased coordination for the larger rare-earth elements involves bidentate ligation from a CO (sub 3) group. Because trivalent actinides such as Am (super 3+) and Cm (super 3+) have ionic radii similar to Nd (super 3+) , their incorporation in calcite may result in a similar defect structure. JF - Geochimica et Cosmochimica Acta AU - Elzinga, E J AU - Reeder, R J AU - Withers, S H AU - Peale, R E AU - Mason, R A AU - Beck, K M AU - Hess, W P Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 2875 EP - 2885 PB - Pergamon, Oxford VL - 66 IS - 16 SN - 0016-7037, 0016-7037 KW - dysprosium KW - experimental studies KW - oxygen KW - coordination KW - crystal structure KW - bonding KW - aqueous solutions KW - calcite KW - laboratory studies KW - metals KW - mineral data KW - EXAFS data KW - ytterbium KW - samarium KW - rare earths KW - trace elements KW - synthesis KW - neodymium KW - crystal chemistry KW - carbonates KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52067502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=EXAFS+study+of+rare-earth+element+coordination+in+calcite&rft.au=Elzinga%2C+E+J%3BReeder%2C+R+J%3BWithers%2C+S+H%3BPeale%2C+R+E%3BMason%2C+R+A%3BBeck%2C+K+M%3BHess%2C+W+P&rft.aulast=Elzinga&rft.aufirst=E&rft.date=2002-08-01&rft.volume=66&rft.issue=16&rft.spage=2875&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2802%2900888-8 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2002-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; bonding; calcite; carbonates; coordination; crystal chemistry; crystal structure; dysprosium; EXAFS data; experimental studies; laboratory studies; metals; mineral data; neodymium; oxygen; rare earths; samarium; synthesis; trace elements; ytterbium DO - http://dx.doi.org/10.1016/S0016-7037(02)00888-8 ER - TY - JOUR T1 - Application of regularized discrimination analysis to regional seismic event identification AN - 52027825; 2003-010760 AB - We present multivariate seismic event identification methods that can be applied to a large number of highly correlated regional discriminants. The methods employ the ridge discrimination techniques first proposed by Smidt and McDonald (1976). Ridge discrimination was developed to address the problems associated with discrimination in high-dimension, colinear settings and is readily adaptable to linear, quadratic, and outlier identification rules. Ridge discrimination is a special case of regularized discrimination analysis (RDA) developed by Friedman (1989). RDA includes linear discrimination (LDA), quadratic discrimination (QDA), and Euclidean distance-based nearest mean discrimination in its parameterization. We propose a new approach to the optimal selection of RDA parameters. We show that the techniques presented in this article can be used to transition from an outlier analysis approach to seismic identification to classical discrimination, as quality explosion calibration data are collected. We demonstrate the importance of including the correlation structure between seismic measurements in event identification. Not including this correlation structure in any identification framework can aggravate identification errors and give an erroneous impression of capability. With the techniques presented, a large number of discriminants can be used and no a priori subselection of discriminants is necessary. JF - Bulletin of the Seismological Society of America AU - Anderson, Dale N AU - Taylor, Steven R Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 2391 EP - 2399 PB - Seismological Society of America, Berkeley, CA VL - 92 IS - 6 SN - 0037-1106, 0037-1106 KW - discriminant analysis KW - explosions KW - statistical analysis KW - calibration KW - spatial distribution KW - errors KW - factors KW - seismicity KW - identification KW - mathematical methods KW - algorithms KW - earthquakes KW - accuracy KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52027825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+Seismological+Society+of+America&rft.atitle=Application+of+regularized+discrimination+analysis+to+regional+seismic+event+identification&rft.au=Anderson%2C+Dale+N%3BTaylor%2C+Steven+R&rft.aulast=Anderson&rft.aufirst=Dale&rft.date=2002-08-01&rft.volume=92&rft.issue=6&rft.spage=2391&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+Seismological+Society+of+America&rft.issn=00371106&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 22 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - BSSAAP N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; calibration; discriminant analysis; earthquakes; errors; explosions; factors; identification; mathematical methods; seismicity; spatial distribution; statistical analysis ER - TY - JOUR T1 - Regulation and assembly of extracellular polymeric substances by the facultative metal reducing bacterium Shewanella oneidensis strain MR-1 AN - 51889222; 2004-013564 JF - Geochimica et Cosmochimica Acta AU - Gorby, Y A AU - McLean, J AU - Pinchuk, G AU - Hill, E A AU - Dohnalkova, Alice AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 286 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - experimental studies KW - biochemistry KW - Shewanella putrefaciens KW - TEM data KW - Shewanella KW - iron KW - aerobic environment KW - laboratory studies KW - biogenic processes KW - metals KW - Shewanella oneidensis KW - bacteria KW - anaerobic environment KW - reduction KW - polymers KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51889222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Regulation+and+assembly+of+extracellular+polymeric+substances+by+the+facultative+metal+reducing+bacterium+Shewanella+oneidensis+strain+MR-1&rft.au=Gorby%2C+Y+A%3BMcLean%2C+J%3BPinchuk%2C+G%3BHill%2C+E+A%3BDohnalkova%2C+Alice%3BAnonymous&rft.aulast=Gorby&rft.aufirst=Y&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=286&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aerobic environment; anaerobic environment; bacteria; biochemistry; biogenic processes; experimental studies; geochemistry; iron; laboratory studies; metals; polymers; reduction; Shewanella; Shewanella oneidensis; Shewanella putrefaciens; TEM data ER - TY - JOUR T1 - Dating ultra-deep mine waters with noble gases and (super 36) Cl, Witwatersrand Basin, South Africa AN - 51888265; 2004-015490 JF - Geochimica et Cosmochimica Acta AU - Lippmann, J AU - Stute, Martin AU - Torgersen, T AU - Moser, D P AU - Hall, J AU - Lin, Lihung AU - Borcsik, M AU - Bellamy, R E S AU - Onstott, T C AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 458 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - mining KW - Xe-136/Xe-132 KW - oxygen KW - underground mining KW - isotopes KW - halogens KW - Xe-134/Xe-132 KW - continental crust KW - He-4 KW - stable isotopes KW - ground water KW - radioactive isotopes KW - Ar-40/Ar-36 KW - noble gases KW - age KW - helium KW - South Africa KW - deuterium KW - geochemistry KW - Witwatersrand KW - chlorine KW - concentration KW - isotope ratios KW - Cl-36 KW - O-18/O-16 KW - xenon KW - hydrochemistry KW - depth KW - argon KW - dissolved materials KW - D/H KW - hydrogen KW - Southern Africa KW - residence time KW - Africa KW - crust KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51888265?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Dating+ultra-deep+mine+waters+with+noble+gases+and+%28super+36%29+Cl%2C+Witwatersrand+Basin%2C+South+Africa&rft.au=Lippmann%2C+J%3BStute%2C+Martin%3BTorgersen%2C+T%3BMoser%2C+D+P%3BHall%2C+J%3BLin%2C+Lihung%3BBorcsik%2C+M%3BBellamy%2C+R+E+S%3BOnstott%2C+T+C%3BAnonymous&rft.aulast=Lippmann&rft.aufirst=J&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=458&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Africa; age; Ar-40/Ar-36; argon; chlorine; Cl-36; concentration; continental crust; crust; D/H; depth; deuterium; dissolved materials; geochemistry; ground water; halogens; He-4; helium; hydrochemistry; hydrogen; isotope ratios; isotopes; mining; noble gases; O-18/O-16; oxygen; radioactive isotopes; residence time; South Africa; Southern Africa; stable isotopes; underground mining; Witwatersrand; Xe-134/Xe-132; Xe-136/Xe-132; xenon ER - TY - JOUR T1 - 12th annual V. M. Goldschmidt conference AN - 51875459; 2004-019333 JF - Geochimica et Cosmochimica Acta AU - Icenhower, J P AU - McGrail, B P AU - Luettge, A AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 351 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - silicates KW - experimental studies KW - data processing KW - alkali metals KW - phase transitions KW - sodium KW - silicon KW - radioactive waste KW - laboratory studies KW - theoretical studies KW - borosilicates KW - chemical reactions KW - aluminosilicates KW - dissolved materials KW - metals KW - data bases KW - boron KW - ion exchange KW - waste disposal KW - glass materials KW - geochemistry KW - disposal barriers KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51875459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=12th+annual+V.+M.+Goldschmidt+conference&rft.au=Icenhower%2C+J+P%3BMcGrail%2C+B+P%3BLuettge%2C+A%3BAnonymous&rft.aulast=Icenhower&rft.aufirst=J&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=351&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 2 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; aluminosilicates; boron; borosilicates; chemical reactions; data bases; data processing; disposal barriers; dissolved materials; experimental studies; geochemistry; glass materials; ion exchange; laboratory studies; metals; phase transitions; radioactive waste; silicates; silicon; sodium; theoretical studies; waste disposal ER - TY - JOUR T1 - Dissolution kinetics of UO (sub 2) (cr) AN - 51869865; 2004-028361 JF - Geochimica et Cosmochimica Acta AU - Pierce, E M AU - Martin, W J AU - Serne, R J AU - Icenhower, J P AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 602 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - uranium dioxide KW - experimental studies KW - mineral-water interface KW - solution KW - chemical reactions KW - saturation KW - metals KW - oxides KW - uranium KW - kinetics KW - geochemistry KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51869865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Dissolution+kinetics+of+UO+%28sub+2%29+%28cr%29&rft.au=Pierce%2C+E+M%3BMartin%2C+W+J%3BSerne%2C+R+J%3BIcenhower%2C+J+P%3BAnonymous&rft.aulast=Pierce&rft.aufirst=E&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=602&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 3 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; chemical reactions; experimental studies; geochemistry; kinetics; metals; mineral-water interface; oxides; saturation; solution; uranium; uranium dioxide ER - TY - JOUR T1 - Theoretical evaluation of electron transfer kinetics at Fe(III)-oxide surfaces with implications for microbial respiration AN - 51865400; 2004-028458 JF - Geochimica et Cosmochimica Acta AU - Rosso, K M AU - Zachara, J M AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 650 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - respiration KW - iron oxides KW - rates KW - iron KW - ferric iron KW - theoretical studies KW - biogenic processes KW - chemical reactions KW - metals KW - bacteria KW - oxides KW - kinetics KW - geochemistry KW - electrons KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51865400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Theoretical+evaluation+of+electron+transfer+kinetics+at+Fe%28III%29-oxide+surfaces+with+implications+for+microbial+respiration&rft.au=Rosso%2C+K+M%3BZachara%2C+J+M%3BAnonymous&rft.aulast=Rosso&rft.aufirst=K&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=650&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; chemical reactions; electrons; ferric iron; geochemistry; iron; iron oxides; kinetics; metals; oxides; rates; respiration; theoretical studies ER - TY - JOUR T1 - The structure of hematite (0001) surfaces in water; STM and resonant tunneling calculations of coexisting O and Fe terminations AN - 51863418; 2004-021131 JF - Geochimica et Cosmochimica Acta AU - Eggleston, Carrick M AU - Stack, Andrew G AU - Rosso, Kevin M AU - Higgins, Steven R AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 207 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - resonant tunneling microscopy KW - scanning tunneling microscopy KW - oxygen KW - mineral-water interface KW - electron microscopy data KW - electrochemical properties KW - iron KW - hematite KW - metals KW - oxides KW - crystal chemistry KW - electron microscopy KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51863418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+structure+of+hematite+%280001%29+surfaces+in+water%3B+STM+and+resonant+tunneling+calculations+of+coexisting+O+and+Fe+terminations&rft.au=Eggleston%2C+Carrick+M%3BStack%2C+Andrew+G%3BRosso%2C+Kevin+M%3BHiggins%2C+Steven+R%3BAnonymous&rft.aulast=Eggleston&rft.aufirst=Carrick&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=207&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - crystal chemistry; electrochemical properties; electron microscopy; electron microscopy data; hematite; iron; metals; mineral-water interface; oxides; oxygen; resonant tunneling microscopy; scanning tunneling microscopy ER - TY - JOUR T1 - Colloid facilitated migration of radioelements; mechanisms, significance, and needed conditions AN - 51853231; 2004-036131 JF - Geochimica et Cosmochimica Acta AU - Zachara, John M AU - Flury, Markus AU - Harsh, James AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 867 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - sorption KW - contaminant plumes KW - isotopes KW - unsaturated zone KW - mechanism KW - radioactive waste KW - laboratory studies KW - radioactive isotopes KW - cesium KW - transport KW - zeolite group KW - sodalite group KW - framework silicates KW - high-level waste KW - concentration KW - experimental studies KW - colloidal materials KW - Washington KW - pollutants KW - alkali metals KW - pollution KW - Hanford Site KW - migration of elements KW - Cs-137 KW - metals KW - cancrinite KW - sheet silicates KW - sodalite KW - waste disposal KW - carbonates KW - pore water KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51853231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Colloid+facilitated+migration+of+radioelements%3B+mechanisms%2C+significance%2C+and+needed+conditions&rft.au=Zachara%2C+John+M%3BFlury%2C+Markus%3BHarsh%2C+James%3BAnonymous&rft.aulast=Zachara&rft.aufirst=John&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=867&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; cancrinite; carbonates; cesium; colloidal materials; concentration; contaminant plumes; Cs-137; experimental studies; framework silicates; Hanford Site; high-level waste; isotopes; laboratory studies; mechanism; metals; migration of elements; pollutants; pollution; pore water; radioactive isotopes; radioactive waste; sheet silicates; silicates; sodalite; sodalite group; sorption; transport; United States; unsaturated zone; Washington; waste disposal; zeolite group ER - TY - JOUR T1 - Direct synthesis of Na-autunite AN - 51852913; 2004-036056 JF - Geochimica et Cosmochimica Acta AU - Wellman, Dawn M AU - Icenhower, Jonathan P AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 828 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - methods KW - autunite KW - laboratory studies KW - experimental studies KW - Na-autunite KW - crystal growth KW - phosphates KW - synthesis KW - SEM data KW - new methods KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51852913?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Direct+synthesis+of+Na-autunite&rft.au=Wellman%2C+Dawn+M%3BIcenhower%2C+Jonathan+P%3BAnonymous&rft.aulast=Wellman&rft.aufirst=Dawn&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=828&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Number of references - 2 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - autunite; crystal growth; experimental studies; laboratory studies; methods; Na-autunite; new methods; phosphates; SEM data; synthesis ER - TY - JOUR T1 - The reductive immobilization of pertechnetate by bioreduced sediments AN - 51340940; 2004-028282 JF - Geochimica et Cosmochimica Acta AU - McKinley, J P AU - Zachara, J M AU - Heald, S M AU - Frederickson, J K AU - Anonymous Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 502 PB - Pergamon, Oxford VL - 66 IS - 15A SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - Shewanella putrefaciens KW - rhodochrosite KW - Shewanella KW - iron KW - XANES spectra KW - laboratory studies KW - mica group KW - Tennessee KW - sediments KW - manganese oxides KW - oxides KW - spectra KW - reduction KW - geochemistry KW - Eh KW - Oak Ridge National Laboratory KW - technetium KW - experimental studies KW - Washington KW - Hanford Site KW - pertechnetate KW - X-ray spectra KW - weathering KW - biogenic processes KW - metals KW - biotite KW - bacteria KW - sheet silicates KW - carbonates KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51340940?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+reductive+immobilization+of+pertechnetate+by+bioreduced+sediments&rft.au=McKinley%2C+J+P%3BZachara%2C+J+M%3BHeald%2C+S+M%3BFrederickson%2C+J+K%3BAnonymous&rft.aulast=McKinley&rft.aufirst=J&rft.date=2002-08-01&rft.volume=66&rft.issue=15A&rft.spage=502&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 12th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2004-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; biotite; carbonates; Eh; experimental studies; geochemistry; Hanford Site; iron; laboratory studies; manganese oxides; metals; mica group; Oak Ridge National Laboratory; oxides; pertechnetate; reduction; rhodochrosite; sediments; sheet silicates; Shewanella; Shewanella putrefaciens; silicates; spectra; technetium; Tennessee; United States; Washington; weathering; X-ray spectra; XANES spectra ER - TY - JOUR T1 - The influence of hydraulic nonequilibrium on pressure plate data AN - 51130835; 2006-007774 AB - Pressure plates are used routinely to measure water-retention characteristics of soils. Plates of varying porosity are used, depending on the pressure range of interest. For applied pressures up to 1.5 MPa, 15-bar porous ceramic plates with fine porosity are used because of their high bubbling pressure (>1.5 MPa), which limits airflow through the plate. The typical saturated hydraulic conductivity of the 15-bar plate is <3 X 10 (super -11) m s (super -1) . Low plate conductance coupled with decreasing soil hydraulic conductivities at high pressures strongly influence equilibrium times, which theoretically may extend to months or years. We measured the soil water pressures (suctions) for three soils, a sand, a silt loam, and a clay, placed on 15-bar pressure plates for 10 d or longer, with and without static loads and with and without using a kaolinite slurry to improve plate contact. Total matric suctions, inferred from peltier psychrometry data, were always <1.0 MPa. When sample height was increased from 1.5 to 3 cm, the water contents increased and total suctions decreased to 0.15 MPa for sand, 0.3 MPa for silt loam, and 0.55 MPa for clay. These data suggest that alternative methods other than pressure plates may be required to measure equilibrium water suctions of soils in reasonable times in the 1.5-MPa (15-bar) pressure range and that loading of the samples and use of kaolinite slurry appear to be ineffective in speeding equilibrium. JF - Vadose Zone Journal AU - Gee, G W AU - Ward, A L AU - Zhang, Z F AU - Campbell, G S AU - Mathison, J Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 172 EP - 178 PB - Soil Science Society of America, Madison, WI VL - 1 IS - 1 KW - hydraulics KW - moisture KW - finite difference analysis KW - data processing KW - unsaturated zone KW - simulation KW - laboratory studies KW - water pressure KW - conductivity KW - sampling KW - STOMP computer program KW - hydrodynamics KW - applications KW - soil-water balance KW - water KW - soils KW - hydrology KW - soil mechanics KW - experimental studies KW - two-phase models KW - depth KW - pressure plate method KW - measurement KW - subsurface transport over multiple phases KW - computer programs KW - Alfisols KW - saturation KW - suction KW - hydraulic conductivity KW - Mollisols KW - instruments KW - 30:Engineering geology KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51130835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=The+influence+of+hydraulic+nonequilibrium+on+pressure+plate+data&rft.au=Gee%2C+G+W%3BWard%2C+A+L%3BZhang%2C+Z+F%3BCampbell%2C+G+S%3BMathison%2C+J&rft.aulast=Gee&rft.aufirst=G&rft.date=2002-08-01&rft.volume=1&rft.issue=1&rft.spage=172&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 23 N1 - PubXState - WI N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Accessed on December 19, 2005 N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - Alfisols; applications; computer programs; conductivity; data processing; depth; experimental studies; finite difference analysis; hydraulic conductivity; hydraulics; hydrodynamics; hydrology; instruments; laboratory studies; measurement; moisture; Mollisols; pressure plate method; sampling; saturation; simulation; soil mechanics; soil-water balance; soils; STOMP computer program; subsurface transport over multiple phases; suction; two-phase models; unsaturated zone; water; water pressure ER - TY - JOUR T1 - Fluid flow, heat transfer, and solute transport at nuclear waste storage tanks in the Hanford vadose zone AN - 50078454; 2002-078858 AB - At the Hanford Site, highly radioactive and chemically aggressive waste fluids have leaked from underground storage tanks into the vadose zone. This paper addresses hydrogeological issues at the 241-SX tank farm, especially focusing on Tank SX-108, which is one of the highest heat load, supernate density and ionic strength tanks at Hanford and a known leaker. The behavior of contaminants in the unsaturated zone near SX-108 is determined by an interplay of multiphase fluid flow and heat transfer processes with reactive chemical transport in a complex geological setting. Numerical simulation studies were performed to obtain a better understanding of mass and energy transport in the unique hydrogeologic system created by the SX tank farm. Problem parameters are patterned after conditions at Tank SX-108, and measured data were used whenever possible. Borrowing from techniques developed in geothermal and petroleum reservoir engineering, our simulations feature a comprehensive description of multiphase processes, including boiling and condensation phenomena, and precipitation and dissolution of solids. We find that the thermal perturbation from the tank causes large-scale redistribution of moisture and alters water seepage patterns. During periods of high heat load, fluid and heat flow near the tank are dominated by vapor-liquid counterflow (heat pipe), which provides a much more efficient mechanism than heat conduction for dissipating tank heat. The heat pipe mechanism is also very effective in concentrating dissolved solids near the heat source, where salts may precipitate even if they were only present in small concentrations in ambient fluids. Tank leaks that released aqueous fluids of high ionic strength into the vadose zone were also modeled. The heat load causes formation dry-out beneath the tank, which is accompanied by precipitation of solutes. These may become remobilized at a later time when tank temperatures decline and previously dried out regions are rewetted. Simulated temperature and moisture distributions compare well with borehole measurements performed in 2000. The temperature maximum observed beneath Tank SX-108 can be explained from past thermal history of the tank; it is not necessary to invoke heat generation from leaked radioactive contaminants. A novel composite medium model is used to explore effects of moisture tension-dependent anisotropy, which is shown to have important impacts on fluid flow and solute transport in the Hanford sediments. JF - Vadose Zone Journal AU - Pruess, Karsten AU - Yabusaki, Steve AU - Steefel, Carl AU - Lichtner, Peter Y1 - 2002/08// PY - 2002 DA - August 2002 SP - 68 EP - 88 PB - Soil Science Society of America, Madison, WI VL - 1 IS - 1 KW - United States KW - TOUGH2 KW - solute transport KW - STOMP KW - isotopes KW - underground storage tanks KW - NUFT KW - data processing KW - unsaturated zone KW - mechanism KW - fluid phase KW - temperature KW - radioactive waste KW - radioactive isotopes KW - cesium KW - movement KW - digital simulation KW - sediments KW - Benton County Washington KW - thermodynamic properties KW - geochemistry KW - leaking underground storage tanks KW - Washington KW - FLOTRAN KW - pollutants KW - alkali metals KW - pollution KW - Hanford Site KW - hydrochemistry KW - computer programs KW - Cs-137 KW - liquid waste KW - boiling KW - metals KW - heat transfer KW - Columbia Plateau KW - waste disposal KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50078454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Fluid+flow%2C+heat+transfer%2C+and+solute+transport+at+nuclear+waste+storage+tanks+in+the+Hanford+vadose+zone&rft.au=Pruess%2C+Karsten%3BYabusaki%2C+Steve%3BSteefel%2C+Carl%3BLichtner%2C+Peter&rft.aulast=Pruess&rft.aufirst=Karsten&rft.date=2002-08-01&rft.volume=1&rft.issue=1&rft.spage=68&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/ L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 65 N1 - PubXState - WI N1 - Document feature - illus. incl. 3 tables, sketch map N1 - SuppNotes - Accessed on Oct. 10, 2002 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; Benton County Washington; boiling; cesium; Columbia Plateau; computer programs; Cs-137; data processing; digital simulation; FLOTRAN; fluid phase; geochemistry; Hanford Site; heat transfer; hydrochemistry; isotopes; leaking underground storage tanks; liquid waste; mechanism; metals; movement; NUFT; pollutants; pollution; radioactive isotopes; radioactive waste; sediments; solute transport; STOMP; temperature; thermodynamic properties; TOUGH2; underground storage tanks; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - A vadose zone water fluxmeter with divergence control AN - 18610716; 5525555 AB - Unsaturated water flux densities are needed to quantify water and contaminant transfer within the vadose zone. However, water flux densities are seldom measured directly and often are predicted with uncertainties of an order or magnitude or more. A water fluxmeter was designed, constructed, and tested to directly measure drainage fluxes in field soils. The fluxmeter was designed to minimize divergence. It concentrates flow into a narrow sensing region filled with a fiberglass wick. The wick applies suction, proportional to its length, and passively drains the meter. The meter can be installed in an augured borehole at almost any depth below the root zone. Water flux through the meter is measured with a self-calibrating tipping bucket, with a sensitivity of similar to 4 mL tip super(-1). For our meter this is equivalent to detection limit of similar to 0.1 mm. Passive-wick devices previously have not properly corrected for flow divergence. Laboratory measurements supported predictions of a two-dimensional (2-D) numerical model, which showed that control of the collector height H and knowledge of soil hydraulic properties are required for improving divergence control, particularly at fluxes below 1000 mm yr super(-1). The water fluxmeter is simple in concept, is inexpensive, and has the capability of providing continuous and reliable monitoring of unsaturated water fluxes ranging from less than 1 mm yr super(-1) to more than 1000 mm yr super(-1). JF - Water Resources Research AU - Gee, G W AU - Ward, AL AU - Caldwell, T G AU - Ritter, J C AD - Hydrology Group, Environmental Technology Division, Pacific Northwest National Laboratory, Richland, WA 99353, USA, glendon.gee@pnl.gov Y1 - 2002/08// PY - 2002 DA - August 2002 VL - 38 IS - 8 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts; Aqualine Abstracts KW - Flow KW - Flow Measurement (see also Gauges, Gauging meters) KW - Soil Water Movement KW - Aeration Zone KW - Instrumentation KW - Measuring Instruments KW - Soil/water systems KW - Flow Discharge KW - Performance Evaluation KW - Flow Measurement KW - Unsaturated Flow KW - Aeration (see also Oxygenation, Re-oxygenation) KW - Flowmeters KW - SW 5040:Data acquisition KW - SW 0845:Water in soils KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18610716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=A+vadose+zone+water+fluxmeter+with+divergence+control&rft.au=Gee%2C+G+W%3BWard%2C+AL%3BCaldwell%2C+T+G%3BRitter%2C+J+C&rft.aulast=Gee&rft.aufirst=G&rft.date=2002-08-01&rft.volume=38&rft.issue=8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2001WR000816 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-06-22 N1 - SubjectsTermNotLitGenreText - Flow Measurement (see also Gauges, Gauging meters); Flow; Instrumentation; Aeration (see also Oxygenation, Re-oxygenation); Soil/water systems; Soil Water Movement; Performance Evaluation; Aeration Zone; Flow Measurement; Measuring Instruments; Unsaturated Flow; Flow Discharge; Flowmeters DO - http://dx.doi.org/10.1029/2001WR000816 ER - TY - JOUR T1 - Contribution of dichloroacetate and trichloroacetate to liver tumor induction in mice by trichloroethylene. AN - 71947120; 12127263 AB - Determining the key events in the induction of liver cancer in mice by trichloroethylene (TRI) is important in the determination of how risks from this chemical should be treated at low doses. At least two metabolites can contribute to liver cancer in mice, dichloroacetate (DCA) and trichloroacetate (TCA). TCA is produced from metabolism of TRI at systemic concentrations that can clearly contribute to this response. As a peroxisome proliferator and a species-specific carcinogen, TCA may not be important in the induction of liver cancer in humans at the low doses of TRI encountered in the environment. Because DCA is metabolized much more rapidly than TCA, it has not been possible to directly determine whether it is produced at carcinogenic levels. Unlike TCA, DCA is active as a carcinogen in both mice and rats. Its low-dose effects are not associated with peroxisome proliferation. The present study examines whether biomarkers for DCA and TCA can be used to determine if the liver tumor response to TRI seen in mice is completely attributable to TCA or if other metabolites, such as DCA, are involved. Previous work had shown that DCA produces tumors in mice that display a diffuse immunoreactivity to a c-Jun antibody (Santa Cruz Biotechnology, SC-45), whereas TCA-induced tumors do not stain with this antibody. In the present study, we compared the c-Jun phenotype of tumors induced by DCA or TCA alone to those induced when they are given together in various combinations and to those induced by TRI given in an aqueous vehicle. When given in various combinations, DCA and TCA produced a few tumors that were c-Jun+, many that were c-Jun-, but a number with a mixed phenotype that increased with the relative dose of DCA. Sixteen TRI-induced tumors were c-Jun+, 13 were c-Jun-, and 9 had a mixed phenotype. Mutations of the H-ras protooncogene were also examined in DCA-, TCA-, and TRI-induced tumors. The mutation frequency detected in tumors induced by TCA was significantly different from that observed in TRI-induced tumors (0.44 vs 0.21, p < 0.05), whereas that observed in DCA-induced tumors (0.33) was intermediate between values obtained with TCA and TRI, but not significantly different from TRI. No significant differences were found in the mutation spectra of tumors produced by the three compounds. The presence of mutations in H-ras codon 61 appeared to be a late event, but ras-dependent signaling pathways were activated in all tumors. These data are not consistent with the hypothesis that all liver tumors induced by TRI were produced by TCA. JF - Toxicology and applied pharmacology AU - Bull, Richard J AU - Orner, Gayle A AU - Cheng, Rita S AU - Stillwell, Lisa AU - Stauber, Anja J AU - Sasser, Lyle B AU - Lingohr, Melissa K AU - Thrall, Brian D AD - Molecular Biosciences Department, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. dbull@tricity.wsu.edu Y1 - 2002/07/01/ PY - 2002 DA - 2002 Jul 01 SP - 55 EP - 65 VL - 182 IS - 1 SN - 0041-008X, 0041-008X KW - DNA, Neoplasm KW - 0 KW - Solvents KW - Trichloroethylene KW - 290YE8AR51 KW - Trichloroacetic Acid KW - 5V2JDO056X KW - Dichloroacetic Acid KW - 9LSH52S3LQ KW - Index Medicus KW - Animals KW - Solvents -- toxicity KW - Drug Interactions KW - Random Allocation KW - Mice KW - Sequence Analysis, DNA KW - DNA, Neoplasm -- chemistry KW - Polymerase Chain Reaction KW - Blotting, Western KW - Genes, ras -- genetics KW - DNA, Neoplasm -- genetics KW - Mutation KW - Genes, jun -- genetics KW - Male KW - Liver Neoplasms -- pathology KW - Liver Neoplasms -- metabolism KW - Dichloroacetic Acid -- toxicity KW - Trichloroacetic Acid -- toxicity KW - Liver Neoplasms -- chemically induced KW - Trichloroethylene -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71947120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+applied+pharmacology&rft.atitle=Contribution+of+dichloroacetate+and+trichloroacetate+to+liver+tumor+induction+in+mice+by+trichloroethylene.&rft.au=Bull%2C+Richard+J%3BOrner%2C+Gayle+A%3BCheng%2C+Rita+S%3BStillwell%2C+Lisa%3BStauber%2C+Anja+J%3BSasser%2C+Lyle+B%3BLingohr%2C+Melissa+K%3BThrall%2C+Brian+D&rft.aulast=Bull&rft.aufirst=Richard&rft.date=2002-07-01&rft.volume=182&rft.issue=1&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+applied+pharmacology&rft.issn=0041008X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-08-06 N1 - Date created - 2002-07-19 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Fungal-to-bacterial ratios in soils investigated for enhanced C sequestration AN - 18711498; 5599866 AB - Fungi and bacteria govern most of the transformations and ensuing long-term storage of organic C in soils. We assessed the relative contributions of these two groups of organisms to the microbial biomass and activity of soils from five different ecosystems with treatments hypothesized to enhance soil C sequestration: (1) desert (an elevation gradient allowed comparison of soil developed in a cooler, moister climate with soil developed in a warmer, drier climate), (2) restored tallgrass prairie (land reverted to native prairie in 1979 and neighboring land farmed to row crops of similar to 100 year), (3,4) two forest types (Douglas fir and loblolly pine, unfertilized control and N-fertilized plots), and (5) agricultural land (conventional- and no-till management systems). The selective inhibition technique, using captan (fungicide) and oxytetracycline hydrochloride (bactericide), was used to determine the activities (respiration) of fungi and bacteria in each of these soils and substrate-induced respiration was used to measure total active soil microbial biomass C. Phospholipid fatty acid analysis was used to determine the composition of the soil microbial biomass and determine if the activities and structure of the microbial communities were related. Differences in fungal-to-bacterial (F:B) activities between treatments at a site were greatest at the prairie sites. The restored prairie had the highest F:B (13.5) and high total C (49.9 g C kg super(-1) soil); neighboring soil farmed to corn had an F:B of 0.85 and total C of 36.0 g C kg super(-1) soil. Within the pairs of study soils, those that were tilled had lower fungal activities and stored C than those that were managed to native or no-till systems. In all pairs of soils, soils that had higher absolute fungal activities also had more total soil C and when two extreme cases were removed fungal activity was correlated with total soil C (R super(2) = 0.85). Thus, in this small set of diverse soils, increased fungal activities, more than F:B ratios, were associated with increased soil C. Practices that involved invasive land management decreased fungal activity and stored soil C compared to similar soils that were less intrusively managed. JF - Soil Biology and Biochemistry AU - Bailey, V L AU - Smith, J L AU - Bolton, H Jr AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, MSIN P7-50, Richland, WA 99352, USA, vanessa.bailey@pnl.gov Y1 - 2002/07// PY - 2002 DA - Jul 2002 SP - 997 EP - 1007 VL - 34 IS - 7 SN - 0038-0717, 0038-0717 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Ecology Abstracts KW - A 01047:General KW - D 04600:Soil UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18711498?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Soil+Biology+and+Biochemistry&rft.atitle=Fungal-to-bacterial+ratios+in+soils+investigated+for+enhanced+C+sequestration&rft.au=Bailey%2C+V+L%3BSmith%2C+J+L%3BBolton%2C+H+Jr&rft.aulast=Bailey&rft.aufirst=V&rft.date=2002-07-01&rft.volume=34&rft.issue=7&rft.spage=997&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+and+Biochemistry&rft.issn=00380717&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Effects of soil heterogeneity on steady state soil water pressure head under a surface line source AN - 18614899; 5523443 AB - There are numerous analytical solutions available for flow in unsaturated homogeneous porous media. In this paper, the stream tube model for one-dimensional water movement is extended to two-dimensional (2-D) water movement from a line source as the stream plane model. As well, new solutions are derived to predict the mean and variance of pressure head of water movement under a surface line source in heterogeneous soil using the perturbation method with first-order approximation (PM1) and with second-order approximation (PM2). A variance expression was also developed based on the spectral relationship presented by Yeh et al. [1985a]. The new solutions were tested using the 2-D stream plane model with parameters A = ln( alpha ) and Y = ln(K sub(S)) and measurements from field experiments. Results show that the mean of steady state pressure head below the line source is not only a function of the mean parameter values but also a function of the variances of A and Y and the linear cross-correlation coefficient ( rho ) between A and Y. The PM2 model can predict the mean pressure head accurately in heterogeneous soils at any level of correlation between A and Y, except when both the soil variability and rho are high. The pressure head variance estimation based on the PM1 model predicts the measured variance well only when both the soil variability and rho are low. The field experimental results show that both the PM1 and the spectral models give reasonable predictions of the pressure head variance. Both the measured and predicted values of the variance of pressure head using the two models increase with the depth of soil. Both models show that the variance of pressure head decreases as the source strength increases, but on average, the pressure head variance was underestimated by both models. JF - Water Resources Research AU - Zhang, Z F AU - Parkin, G W AU - Kachanoski, R G AU - Smith, JE AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, fred.zhang@pnl.gov Y1 - 2002/07// PY - 2002 DA - Jul 2002 VL - 38 IS - 7 SN - 0043-1397, 0043-1397 KW - Water Resources Abstracts; Aqualine Abstracts KW - Flow KW - Soil Water Movement KW - Experimental Data KW - Head KW - Soil/water systems KW - Model Testing KW - Model Studies KW - Comparative studies KW - Performance Evaluation KW - Unsaturated Flow KW - Comparison Studies KW - Pressure Head KW - Heterogeneity KW - AQ 00001:Water Resources and Supplies KW - SW 0845:Water in soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18614899?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Effects+of+soil+heterogeneity+on+steady+state+soil+water+pressure+head+under+a+surface+line+source&rft.au=Zhang%2C+Z+F%3BParkin%2C+G+W%3BKachanoski%2C+R+G%3BSmith%2C+JE&rft.aulast=Zhang&rft.aufirst=Z&rft.date=2002-07-01&rft.volume=38&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2000WR000019 LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Flow; Comparative studies; Head; Soil/water systems; Heterogeneity; Experimental Data; Soil Water Movement; Performance Evaluation; Comparison Studies; Unsaturated Flow; Pressure Head; Model Testing; Model Studies DO - http://dx.doi.org/10.1029/2000WR000019 ER - TY - JOUR T1 - Considering barometric pressure in groundwater flow investigations AN - 52031702; 2003-009761 JF - Water Resources Research AU - Spane, F A Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 18 PB - American Geophysical Union, Washington, DC VL - 38 IS - 6 SN - 0043-1397, 0043-1397 KW - solute transport KW - hazardous waste KW - migration KW - hydraulics KW - pollutants KW - unsaturated zone KW - prediction KW - pollution KW - fluid dynamics KW - environmental effects KW - measurement KW - ground water KW - aquifers KW - water pressure KW - hydraulic head KW - levels KW - hydrodynamics KW - atmospheric pressure KW - shallow aquifers KW - water wells KW - unconfined aquifers KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52031702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Considering+barometric+pressure+in+groundwater+flow+investigations&rft.au=Spane%2C+F+A&rft.aulast=Spane&rft.aufirst=F&rft.date=2002-06-01&rft.volume=38&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2001WR000701 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 44 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - aquifers; atmospheric pressure; environmental effects; fluid dynamics; ground water; hazardous waste; hydraulic head; hydraulics; hydrodynamics; levels; measurement; migration; pollutants; pollution; prediction; shallow aquifers; solute transport; unconfined aquifers; unsaturated zone; water pressure; water wells DO - http://dx.doi.org/10.1029/2001WR000701 ER - TY - JOUR T1 - Model intercomparison study to investigate a dense contaminant plume in a complex hydrogeologic system AN - 51168825; 2002-054603 JF - Environmental Geology (Berlin) AU - Williams, Mark D AU - Cole, Charles R AU - Foley, Michael G AU - Zinina, Galina A AU - Zinin, Alexander I (Aleksandr I) AU - Vasil'kova, Nelly A AU - Samsonova, Lilia M AU - Tsang, Chin-Fu AU - Shestakov, Vsevolod M Y1 - 2002/06// PY - 2002 DA - June 2002 SP - 199 EP - 213 PB - Springer International, Berlin VL - 42 IS - 2-3 SN - 0943-0105, 0943-0105 KW - aquifer vulnerability KW - density KW - contaminant plumes KW - finite difference analysis KW - Russian Federation KW - simulation KW - environmental analysis KW - ground water KW - Commonwealth of Independent States KW - Kyshtym Russian Federation KW - transport KW - Southern Urals KW - Lake Karachai KW - Urals KW - hydrology KW - concentration KW - numerical models KW - pollutants KW - statistical analysis KW - solutes KW - pollution KW - mathematical models KW - migration of elements KW - evapotranspiration KW - aquifers KW - models KW - water table KW - recharge KW - Mayak Site KW - shallow aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51168825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Geology+%28Berlin%29&rft.atitle=Model+intercomparison+study+to+investigate+a+dense+contaminant+plume+in+a+complex+hydrogeologic+system&rft.au=Williams%2C+Mark+D%3BCole%2C+Charles+R%3BFoley%2C+Michael+G%3BZinina%2C+Galina+A%3BZinin%2C+Alexander+I+%28Aleksandr+I%29%3BVasil%27kova%2C+Nelly+A%3BSamsonova%2C+Lilia+M%3BTsang%2C+Chin-Fu%3BShestakov%2C+Vsevolod+M&rft.aulast=Williams&rft.aufirst=Mark&rft.date=2002-06-01&rft.volume=42&rft.issue=2-3&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Environmental+Geology+%28Berlin%29&rft.issn=09430105&rft_id=info:doi/ L2 - http://www.springerlink.com/content/1432-0495/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; Commonwealth of Independent States; concentration; contaminant plumes; density; environmental analysis; evapotranspiration; finite difference analysis; ground water; hydrology; Kyshtym Russian Federation; Lake Karachai; mathematical models; Mayak Site; migration of elements; models; numerical models; pollutants; pollution; recharge; Russian Federation; shallow aquifers; simulation; solutes; Southern Urals; statistical analysis; transport; Urals; water table ER - TY - JOUR T1 - The agricultural dispersal-valley drift spray drift modeling system compared with pesticide drift data. AN - 71704660; 12013131 AB - The coupling of the valley drift (VALDRIFT) atmospheric dispersion/deposition model with the agricultural dispersal (AGDISP) aircraft wake model generates a modeling system for predicting the off-target drift of pesticides sprayed in a mountain valley. The approach uses the AGDISP near-field spray model to estimate the mass fraction of pesticide remaining airborne after initial application, then the VALDRIFT complex terrain model to estimate the drift of pesticide from the target area. The modeling system inputs include detailed spray information, a measure (or estimate) of winds in the valley, and the valley topographic characteristics; the results are pesticide concentrations throughout the valley atmosphere and pesticide deposition to the valley surface. The AGDISP and VALDRIFT models are operated independently, with the results from AGDISP being used as input to VALDRIFT through user-created data files. The modeling system was evaluated using pesticide drift data from spray trials conducted in the Mill Creek Canyon of Utah's Wasatch Mountains, USA, during the late spring of 1993. The predicted deposition compared within a factor of three of the observations (70% of the time) at all sampling locations extending several kilometers down-valley from the spray treatment block. The overall average ratio of predicted-to-observed deposition was 0.9. JF - Environmental toxicology and chemistry AU - Allwine, K Jerry AU - Thistle, Harold W AU - Teske, Milton E AU - Anhold, John AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. jerry.allwine@pnl.gov Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 1085 EP - 1090 VL - 21 IS - 5 SN - 0730-7268, 0730-7268 KW - Air Pollutants KW - 0 KW - Pesticides KW - Index Medicus KW - Altitude KW - Aircraft KW - Forecasting KW - Agriculture KW - Air Pollutants -- analysis KW - Wind KW - Models, Theoretical UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71704660?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+toxicology+and+chemistry&rft.atitle=The+agricultural+dispersal-valley+drift+spray+drift+modeling+system+compared+with+pesticide+drift+data.&rft.au=Allwine%2C+K+Jerry%3BThistle%2C+Harold+W%3BTeske%2C+Milton+E%3BAnhold%2C+John&rft.aulast=Allwine&rft.aufirst=K&rft.date=2002-05-01&rft.volume=21&rft.issue=5&rft.spage=1085&rft.isbn=&rft.btitle=&rft.title=Environmental+toxicology+and+chemistry&rft.issn=07307268&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-05 N1 - Date created - 2002-05-15 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Geostatistical mapping of effluent-affected sediment distribution on the Palos Verdes shelf AN - 51654627; 2006-002722 JF - Continental Shelf Research AU - Murray, Chris J AU - Lee, Homa J AU - Hampton, Monty A A2 - Lee, Homa J. A2 - Wiberg, Patricia L. Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 881 EP - 897 PB - Elsevier, Oxford VL - 22 IS - 6-7 SN - 0278-4343, 0278-4343 KW - United States KW - chlorinated hydrocarbons KW - stream transport KW - Northeast Pacific KW - waste water KW - mapping KW - California KW - spatial distribution KW - Palos Verdes Peninsula KW - marine sediments KW - sediments KW - thickness KW - halogenated hydrocarbons KW - East Pacific KW - Los Angeles County California KW - concentration KW - sewage KW - sediment transport KW - pollutants KW - effluents KW - DDE KW - statistical analysis KW - pollution KW - geostatistics KW - organic compounds KW - North Pacific KW - Pacific Ocean KW - continental shelf KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51654627?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Continental+Shelf+Research&rft.atitle=Geostatistical+mapping+of+effluent-affected+sediment+distribution+on+the+Palos+Verdes+shelf&rft.au=Murray%2C+Chris+J%3BLee%2C+Homa+J%3BHampton%2C+Monty+A&rft.aulast=Murray&rft.aufirst=Chris&rft.date=2002-05-01&rft.volume=22&rft.issue=6-7&rft.spage=881&rft.isbn=&rft.btitle=&rft.title=Continental+Shelf+Research&rft.issn=02784343&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02784343 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. geol. sketch maps, 2 tables, block diag. N1 - Last updated - 2012-06-07 N1 - CODEN - CSHRDZ N1 - SubjectsTermNotLitGenreText - California; chlorinated hydrocarbons; concentration; continental shelf; DDE; East Pacific; effluents; geostatistics; halogenated hydrocarbons; Los Angeles County California; mapping; marine sediments; North Pacific; Northeast Pacific; organic compounds; Pacific Ocean; Palos Verdes Peninsula; pollutants; pollution; sediment transport; sediments; sewage; spatial distribution; statistical analysis; stream transport; thickness; United States; waste water ER - TY - JOUR T1 - Acoustic profiles and images of the Palos Verdes margin; implications concerning deposition from the White's Point outfall AN - 51654412; 2006-002720 JF - Continental Shelf Research AU - Hampton, Monty A AU - Karl, Herman A AU - Murray, Christopher J A2 - Lee, Homa J. A2 - Wiberg, Patricia L. Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 841 EP - 857 PB - Elsevier, Oxford VL - 22 IS - 6-7 SN - 0278-4343, 0278-4343 KW - United States KW - San Pedro Basin KW - continental slope KW - stream transport KW - Northeast Pacific KW - geophysical surveys KW - stream sediments KW - seepage KW - marine sedimentation KW - Cenozoic KW - California KW - acoustical methods KW - Palos Verdes Peninsula KW - marine sediments KW - sedimentation rates KW - White's Point KW - mass movements KW - sediments KW - outcrops KW - ocean floors KW - vents KW - East Pacific KW - bedrock KW - Los Angeles County California KW - high-resolution methods KW - Quaternary KW - sedimentation KW - geophysical methods KW - slumping KW - lithofacies KW - Southern California KW - stratification KW - North Pacific KW - marine methods KW - Pacific Ocean KW - surveys KW - side-scanning methods KW - geophysical profiles KW - continental shelf KW - bathymetry KW - 20:Applied geophysics KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51654412?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Continental+Shelf+Research&rft.atitle=Acoustic+profiles+and+images+of+the+Palos+Verdes+margin%3B+implications+concerning+deposition+from+the+White%27s+Point+outfall&rft.au=Hampton%2C+Monty+A%3BKarl%2C+Herman+A%3BMurray%2C+Christopher+J&rft.aulast=Hampton&rft.aufirst=Monty&rft.date=2002-05-01&rft.volume=22&rft.issue=6-7&rft.spage=841&rft.isbn=&rft.btitle=&rft.title=Continental+Shelf+Research&rft.issn=02784343&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/02784343 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 20 N1 - Document feature - illus. incl. geol. sketch maps, sects., block diag. N1 - Last updated - 2012-06-07 N1 - CODEN - CSHRDZ N1 - SubjectsTermNotLitGenreText - acoustical methods; bathymetry; bedrock; California; Cenozoic; continental shelf; continental slope; East Pacific; geophysical methods; geophysical profiles; geophysical surveys; high-resolution methods; lithofacies; Los Angeles County California; marine methods; marine sedimentation; marine sediments; mass movements; North Pacific; Northeast Pacific; ocean floors; outcrops; Pacific Ocean; Palos Verdes Peninsula; Quaternary; San Pedro Basin; sedimentation; sedimentation rates; sediments; seepage; side-scanning methods; slumping; Southern California; stratification; stream sediments; stream transport; surveys; United States; vents; White's Point ER - TY - JOUR T1 - Adsorption of molybdenum on to anatase from dilute aqueous solutions AN - 16136106; 5418010 AB - Adsorption of Mo on to hydrous TiO sub(2) (anatase) particles was investigated. Batch experiments were conducted at 19 and 90 degree C over a pH range of 2 to 12 and Mo concentrations ranging from approximately 10 super(-6) to 10 super(-4) M. The extent of sorption was strongly dependent on pH and surface loading. Maximum sorption was observed in the acidic pH range at low surface loading. Adsorption behavior was described using the empirical Langmuir adsorption model. A constant capacitance surface complexation model was also used to fit the adsorption isotherms using a ligand exchange reaction for a hydroxyl surface site on anatase. Comparison of experimental data at two different temperatures (19 and 90 degree C) indicates that Mo sorption in the acidic pH range decreases with increasing temperature. JF - Applied Geochemistry AU - Saripalli, K P AU - McGrail, B P AU - Girvin, D C AD - Pacific Northwest National Laboratory, Richland, Washington, WA 99352, USA, prasad.saripalli@pnl.gov Y1 - 2002/05// PY - 2002 DA - May 2002 SP - 649 EP - 656 VL - 17 IS - 5 SN - 0883-2927, 0883-2927 KW - Aqualine Abstracts; Water Resources Abstracts KW - Experimental Data KW - Adsorption (see also Sorption) KW - Heavy metals KW - Molybdenum KW - Temperature KW - Adsorbents KW - Hydrogen Ion Concentration KW - Wastewater treatment KW - Heavy Metals KW - Hydrogen ion concentrations KW - Model Studies KW - Adsorbent materials KW - Kinetics KW - Adsorption KW - Load Distribution KW - Wastewater Treatment KW - AQ 00006:Sewage KW - SW 3040:Wastewater treatment processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16136106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Adsorption+of+molybdenum+on+to+anatase+from+dilute+aqueous+solutions&rft.au=Saripalli%2C+K+P%3BMcGrail%2C+B+P%3BGirvin%2C+D+C&rft.aulast=Saripalli&rft.aufirst=K&rft.date=2002-05-01&rft.volume=17&rft.issue=5&rft.spage=649&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2003-09-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Adsorbent materials; Adsorption (see also Sorption); Heavy metals; Kinetics; Molybdenum; Temperature; Wastewater treatment; Hydrogen ion concentrations; Experimental Data; Load Distribution; Adsorption; Hydrogen Ion Concentration; Adsorbents; Wastewater Treatment; Heavy Metals; Model Studies ER - TY - JOUR T1 - Selective stationary phase for solid-phase microextraction analysis of sarin (GB). AN - 71808431; 12058906 AB - A number of critical field applications require monitoring air samples for trace levels of chemical warfare agents. Solid-phase microextraction (SPME) is a convenient format to conduct these analyses. Measurements could be significantly improved if a SPME phase selective for nerve agents were substituted for non-selective polymers typically used (e.g., polydimethylsiloxane). This paper evaluates a novel stationary phase, previously developed for methylphosphonate sensor applications, for use with SPME sampling. The phenol-based polymer, BSP3, was found to offer far higher selectivity toward sarin (GB) than polydimethylsiloxane due to a pronounced affinity toward the target analyte and a lower affinity toward hydrocarbons. JF - Journal of chromatography. A AU - Harvey, S D AU - Nelson, D A AU - Wright, B W AU - Grate, J W AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. scott.harvey@pnl.gov Y1 - 2002/04/19/ PY - 2002 DA - 2002 Apr 19 SP - 217 EP - 225 VL - 954 IS - 1-2 SN - 0021-9673, 0021-9673 KW - Chemical Warfare Agents KW - 0 KW - Sarin KW - B4XG72QGFM KW - Index Medicus KW - Air -- analysis KW - Sarin -- isolation & purification KW - Chromatography, Gel -- methods KW - Chemical Warfare Agents -- isolation & purification KW - Chromatography, Gas -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71808431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+chromatography.+A&rft.atitle=Selective+stationary+phase+for+solid-phase+microextraction+analysis+of+sarin+%28GB%29.&rft.au=Harvey%2C+S+D%3BNelson%2C+D+A%3BWright%2C+B+W%3BGrate%2C+J+W&rft.aulast=Harvey&rft.aufirst=S&rft.date=2002-04-19&rft.volume=954&rft.issue=1-2&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Journal+of+chromatography.+A&rft.issn=00219673&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-11-20 N1 - Date created - 2002-06-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - New magnetostratigraphic analysis indicates that onset of Pleistocene cataclysmic flooding predates 1.07 ma in east-central Washington AN - 52022455; 2003-019277 AB - Pleistocene cataclysmic flood deposits, informally referred to as the Hanford formation, blanket the Pasco Basin in south-central Washington. A thick sequence (up to 100 m) of flood-deposited gravel, sand, and silt underlies much of the USDOE's Hanford Site. Correlation of cataclysmic flood deposits is often difficult because of a lack of marker horizons and rapid lateral facies changes. However, paleomagnetic reversals provide an opportunity to establish time-stratigraphic units within flood deposits. Our samples are derived from five new boreholes penetrating the giant Cold Creek flood bar. A total of 121 new paleomagnetic samples were collected in the spring of 2001 from split-spooned drill cores and analyzed for paleomagnetic inclination. This is in addition to 60 samples previously analyzed (Bjornstad et al., 2001). Paleomagnetic samples, obtained from finer-grained facies, consisted of silt to coarse-grained sand. Very detailed stepwise demagnetization experiments were performed on samples to remove magnetic overprints. We performed an average of 15 steps of alternating field (AF) demagnetization between 0 and 200 milli-Tesla (mT) or 12 steps of thermal demagnetization between room temperature and 600 degrees C. Demagnetization revealed both reversed and normal polarities. On the eastern end of Cold Creek bar one new and two previously-sampled boreholes span a total section of 14-82 m depth. The Brunhes-Matuyama polarity boundary (0.78 Ma) appears to be shallower than 14 m (shallowest sample depth); the sampled sequence is dominantly reversed-polarity. One normal polarity interval between about 54 and 69 m, probably represents the Olduvai (1.77-1.95 Ma) normal subchron or less likely the Jaramillo (0.99-1.07 Ma) normal subchron. Therefore, the oldest deposits penetrated by these boreholes are at least older than 1.07 Ma and more likely older than 1.95 Ma, thus providing new constraints for the onset of ice-age flooding in the Pacific Northwest. Samples from four new and two previous boreholes on the western portion of Cold Creek bar are mostly normal in polarity. However, two thin reversed-polarity horizons are evident in four of these boreholes. The reversed intervals may represent magnetic excursions during the Brunhes or incompletely-recorded Matuyama-aged flood deposition. JF - Abstracts with Programs - Geological Society of America AU - Pluhar, Christopher J AU - Reidel, Stephen P AU - Bjornstad, Bruce AU - Nelson, Paul B AU - Coe, Robert S AU - Anonymous Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 25 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Hanford Formation KW - Washington KW - demagnetization KW - Quaternary KW - paleohydrology KW - sedimentation KW - Hanford Site KW - Grant County Washington KW - paleomagnetism KW - Franklin County Washington KW - magnetostratigraphy KW - paleogeography KW - Cenozoic KW - jokulhlaups KW - Pleistocene KW - glacial sedimentation KW - paleofloods KW - Benton County Washington KW - central Washington KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52022455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=New+magnetostratigraphic+analysis+indicates+that+onset+of+Pleistocene+cataclysmic+flooding+predates+1.07+ma+in+east-central+Washington&rft.au=Pluhar%2C+Christopher+J%3BReidel%2C+Stephen+P%3BBjornstad%2C+Bruce%3BNelson%2C+Paul+B%3BCoe%2C+Robert+S%3BAnonymous&rft.aulast=Pluhar&rft.aufirst=Christopher&rft.date=2002-04-01&rft.volume=34&rft.issue=5&rft.spage=25&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 98th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Benton County Washington; Cenozoic; central Washington; demagnetization; Franklin County Washington; glacial sedimentation; Grant County Washington; Hanford Formation; Hanford Site; jokulhlaups; magnetostratigraphy; paleofloods; paleogeography; paleohydrology; paleomagnetism; Pleistocene; Quaternary; sedimentation; United States; Washington ER - TY - JOUR T1 - Characterization and proposed formalization (Hanford Formation) for ice-age flood deposits within the Pacific Northwest AN - 52021995; 2003-019275 AB - Cataclysmic floods, associated with the periodic breakup of the Cordilleran Ice Sheet during the Pleistocene, are well known for carving out the Channeled Scabland. Floods deposited detritus in the scablands as well as basins of the Columbia River and tributary valleys downstream. In the Pasco Basin, behind a hydraulic constriction at Wallula Gap, up to 100 m of flood deposits incrementally accumulated beneath the Department of Energy's Hanford Site. Regionally, all deposits from ice-age flooding can be subdivided into 11 lithofacies, based on textural-structural characteristics. Coarse-grained lithofacies lie proximal to high-energy flood tracts whereas the finest-grained facies lie in backflooded or other slack-water environments. Cataclysmic flood deposits in the Pasco Basin have been referred to, informally, as the Hanford formation for over 30 years. We propose the expansion and formalization of the Hanford formation to include all cataclysmic ice-age flood deposits in the Pacific Northwest. We propose the name "Hanford Formation", since at the Hanford Site: 1) 10 out of 11 flood lithofacies are represented, and 2) an extensive data base already exists that includes thousands of borings from over 50 years of geologic investigation. Furthermore, flood deposits are thickest at the Hanford Site with one of the longest records of flooding. Magnetostratigraphic evidence from borings drilled into a giant flood bar indicate flood deposits date back to the early Pleistocene (>780 ka). Regionally, deposits of the Hanford formation can be subdivided into four facies associations. Two types of fine-grained, slack-water flood deposits are recognized, consisting of the Sanpoil (sand-silt rhythmites separated by lacustrine fines) and Touchet (sand-silt rhythmites only) facies associations. Higher energy flood deposits are composed of the Malden (sand-dominated) and Pasco (gravel-dominated) facies associations. JF - Abstracts with Programs - Geological Society of America AU - Bjornstad, Bruce AU - Last, George V AU - Reidel, Stephen P AU - Horton, Duane G AU - Fecht, Karl R AU - Smith, Gary A AU - Lindsey, Kevin A AU - Anonymous Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 24 PB - Geological Society of America (GSA), Boulder, CO VL - 34 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - nomenclature KW - lithostratigraphy KW - Hanford Formation KW - Washington KW - Quaternary KW - paleohydrology KW - sedimentation KW - Hanford Site KW - Grant County Washington KW - Franklin County Washington KW - paleogeography KW - new names KW - Cenozoic KW - Pasco Basin KW - Pleistocene KW - glacial sedimentation KW - paleofloods KW - Benton County Washington KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52021995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Characterization+and+proposed+formalization+%28Hanford+Formation%29+for+ice-age+flood+deposits+within+the+Pacific+Northwest&rft.au=Bjornstad%2C+Bruce%3BLast%2C+George+V%3BReidel%2C+Stephen+P%3BHorton%2C+Duane+G%3BFecht%2C+Karl+R%3BSmith%2C+Gary+A%3BLindsey%2C+Kevin+A%3BAnonymous&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2002-04-01&rft.volume=34&rft.issue=5&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Cordilleran Section, 98th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2003-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Benton County Washington; Cenozoic; Franklin County Washington; glacial sedimentation; Grant County Washington; Hanford Formation; Hanford Site; lithostratigraphy; new names; nomenclature; paleofloods; paleogeography; paleohydrology; Pasco Basin; Pleistocene; Quaternary; sedimentation; United States; Washington ER - TY - JOUR T1 - Biomineralization of poorly crystalline Fe(III) oxides by dissimilatory metal reducing bacteria (DMRB) AN - 51979417; 2003-043662 JF - Geomicrobiology Journal AU - Zachara, John M AU - Kukkadapu, Ravi K AU - Frederickson, James K AU - Gorby, Yuri A AU - Smith, Steven C A2 - Roden, Eric E. A2 - Gorby, Yuri A. Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 179 EP - 207 PB - Taylor & Francis, London VL - 19 IS - 2 SN - 0149-0451, 0149-0451 KW - biomineralization KW - iron oxides KW - biochemical sedimentation KW - geomicrobiology KW - sedimentation KW - stability KW - ferrihydrite KW - iron KW - crystallinity KW - ferric iron KW - metals KW - bacteria KW - sediments KW - oxides KW - reduction KW - thermodynamic properties KW - geochemistry KW - microorganisms KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51979417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Biomineralization+of+poorly+crystalline+Fe%28III%29+oxides+by+dissimilatory+metal+reducing+bacteria+%28DMRB%29&rft.au=Zachara%2C+John+M%3BKukkadapu%2C+Ravi+K%3BFrederickson%2C+James+K%3BGorby%2C+Yuri+A%3BSmith%2C+Steven+C&rft.aulast=Zachara&rft.aufirst=John&rft.date=2002-04-01&rft.volume=19&rft.issue=2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 72 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - bacteria; biochemical sedimentation; biomineralization; crystallinity; ferric iron; ferrihydrite; geochemistry; geomicrobiology; iron; iron oxides; metals; microorganisms; oxides; reduction; sedimentation; sediments; stability; thermodynamic properties ER - TY - JOUR T1 - Microbial Fe(III) oxide reduction AN - 51979171; 2003-043659 JF - Geomicrobiology Journal A2 - Roden, Eric E. A2 - Gorby, Yuri A. Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 139 EP - 287 PB - Taylor & Francis, London VL - 19 IS - 2 SN - 0149-0451, 0149-0451 KW - iron oxides KW - biochemical sedimentation KW - geomicrobiology KW - biochemistry KW - sedimentation KW - iron KW - ground water KW - aquifers KW - ferric iron KW - metals KW - bacteria KW - sediments KW - oxides KW - reduction KW - chelation KW - geochemistry KW - microorganisms KW - 21:Hydrogeology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51979171?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2002-04-01&rft.volume=&rft.issue=&rft.spage=139&rft.isbn=&rft.btitle=Microbial+Fe%28III%29+oxide+reduction&rft.title=Microbial+Fe%28III%29+oxide+reduction&rft.issn=01490451&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; biochemical sedimentation; biochemistry; chelation; ferric iron; geochemistry; geomicrobiology; ground water; iron; iron oxides; metals; microorganisms; oxides; reduction; sedimentation; sediments ER - TY - JOUR T1 - Mechanisms for Fe(III) oxide reduction in sedimentary environments AN - 51978416; 2003-043660 JF - Geomicrobiology Journal AU - Nevin, Kelly P AU - Lovley, Derek R A2 - Roden, Eric E. A2 - Gorby, Yuri A. Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 141 EP - 159 PB - Taylor & Francis, London VL - 19 IS - 2 SN - 0149-0451, 0149-0451 KW - terrestrial environment KW - iron oxides KW - biochemical sedimentation KW - biochemistry KW - sedimentation KW - mineral-water interface KW - mechanism KW - organo-metallics KW - iron KW - ferric iron KW - sedimentary rocks KW - metals KW - bacteria KW - sediments KW - oxides KW - reduction KW - depositional environment KW - geochemistry KW - pore water KW - microorganisms KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51978416?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Mechanisms+for+Fe%28III%29+oxide+reduction+in+sedimentary+environments&rft.au=Nevin%2C+Kelly+P%3BLovley%2C+Derek+R&rft.aulast=Nevin&rft.aufirst=Kelly&rft.date=2002-04-01&rft.volume=19&rft.issue=2&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 61 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - bacteria; biochemical sedimentation; biochemistry; depositional environment; ferric iron; geochemistry; iron; iron oxides; mechanism; metals; microorganisms; mineral-water interface; organo-metallics; oxides; pore water; reduction; sedimentary rocks; sedimentation; sediments; terrestrial environment ER - TY - JOUR T1 - Influence of biogenic Fe(II) on bacterial crystalline Fe(III) oxide reduction AN - 51977867; 2003-043663 JF - Geomicrobiology Journal AU - Roden, Eric E AU - Urrutia, Matilde M A2 - Roden, Eric E. A2 - Gorby, Yuri A. Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 209 EP - 251 PB - Taylor & Francis, London VL - 19 IS - 2 SN - 0149-0451, 0149-0451 KW - biomineralization KW - iron oxides KW - biochemical sedimentation KW - geomicrobiology KW - biochemistry KW - sedimentation KW - iron KW - crystallinity KW - ferrous iron KW - ferric iron KW - biogenic processes KW - chemical reactions KW - metals KW - bacteria KW - sediments KW - oxides KW - anaerobic environment KW - reduction KW - geochemistry KW - microorganisms KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51977867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Influence+of+biogenic+Fe%28II%29+on+bacterial+crystalline+Fe%28III%29+oxide+reduction&rft.au=Roden%2C+Eric+E%3BUrrutia%2C+Matilde+M&rft.aulast=Roden&rft.aufirst=Eric&rft.date=2002-04-01&rft.volume=19&rft.issue=2&rft.spage=209&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 127 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - anaerobic environment; bacteria; biochemical sedimentation; biochemistry; biogenic processes; biomineralization; chemical reactions; crystallinity; ferric iron; ferrous iron; geochemistry; geomicrobiology; iron; iron oxides; metals; microorganisms; oxides; reduction; sedimentation; sediments ER - TY - JOUR T1 - Adhesion of dissimilatory Fe(III)-reducing bacteria to Fe(III) minerals AN - 51977798; 2003-043661 JF - Geomicrobiology Journal AU - Caccavo, Frank, Jr AU - Das, Amitabha A2 - Roden, Eric E. A2 - Gorby, Yuri A. Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 161 EP - 177 PB - Taylor & Francis, London VL - 19 IS - 2 SN - 0149-0451, 0149-0451 KW - soils KW - iron oxides KW - iron minerals KW - metabolism KW - geomicrobiology KW - biochemistry KW - pollution KW - bioremediation KW - iron KW - remediation KW - ferric iron KW - metals KW - bacteria KW - oxides KW - reduction KW - geochemistry KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51977798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Adhesion+of+dissimilatory+Fe%28III%29-reducing+bacteria+to+Fe%28III%29+minerals&rft.au=Caccavo%2C+Frank%2C+Jr%3BDas%2C+Amitabha&rft.aulast=Caccavo&rft.aufirst=Frank&rft.date=2002-04-01&rft.volume=19&rft.issue=2&rft.spage=161&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 48 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; bioremediation; ferric iron; geochemistry; geomicrobiology; iron; iron minerals; iron oxides; metabolism; metals; microorganisms; oxides; pollution; reduction; remediation; soils ER - TY - JOUR T1 - Theoretical and experimental considerations related to reaction-based modeling; a case study using iron(III) oxide bioreduction AN - 51977222; 2003-043664 JF - Geomicrobiology Journal AU - Burgos, William D AU - Royer, Richard A AU - Fang, Yilin AU - Yeh, Gour-Tsyh AU - Fisher, Angela S AU - Jeon, Byong-Hun AU - Dempsey, Brian A A2 - Roden, Eric E. A2 - Gorby, Yuri A. Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 253 EP - 287 PB - Taylor & Francis, London VL - 19 IS - 2 SN - 0149-0451, 0149-0451 KW - sorption KW - experimental studies KW - iron oxides KW - geomicrobiology KW - biochemistry KW - solution KW - iron KW - models KW - case studies KW - ferric iron KW - theoretical studies KW - chemical reactions KW - hematite KW - metals KW - bacteria KW - oxides KW - reduction KW - kinetics KW - geochemistry KW - microorganisms KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51977222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geomicrobiology+Journal&rft.atitle=Theoretical+and+experimental+considerations+related+to+reaction-based+modeling%3B+a+case+study+using+iron%28III%29+oxide+bioreduction&rft.au=Burgos%2C+William+D%3BRoyer%2C+Richard+A%3BFang%2C+Yilin%3BYeh%2C+Gour-Tsyh%3BFisher%2C+Angela+S%3BJeon%2C+Byong-Hun%3BDempsey%2C+Brian+A&rft.aulast=Burgos&rft.aufirst=William&rft.date=2002-04-01&rft.volume=19&rft.issue=2&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Geomicrobiology+Journal&rft.issn=01490451&rft_id=info:doi/ L2 - http://www.informaworld.com/smpp/title~content=t713722957~db=all LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GEJODG N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; case studies; chemical reactions; experimental studies; ferric iron; geochemistry; geomicrobiology; hematite; iron; iron oxides; kinetics; metals; microorganisms; models; oxides; reduction; solution; sorption; theoretical studies ER - TY - JOUR T1 - Modeling site response at the Hanford Site based on recordings of the 28 February 2001 Nisqually earthquake AN - 51146854; 2005-003772 JF - Seismological Research Letters AU - Rohay, A C AU - Reidel, S P AU - Hartshorn, D C AU - Valenta, M M AU - Anonymous Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 266 PB - Seismological Society of America, El Cerrito, CA VL - 73 IS - 2 SN - 0895-0695, 0895-0695 KW - United States KW - data processing KW - accelerometers KW - acceleration KW - elastic waves KW - Cenozoic KW - Nisqually earthquake 2001 KW - body waves KW - Washington KW - Columbia River Basalt Group KW - Hanford Site KW - Ringold Formation KW - Miocene KW - computer programs KW - Tertiary KW - strong motion KW - Neogene KW - ground motion KW - Pliocene KW - SHAKE KW - seismic waves KW - earthquakes KW - S-waves KW - instruments KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51146854?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Modeling+site+response+at+the+Hanford+Site+based+on+recordings+of+the+28+February+2001+Nisqually+earthquake&rft.au=Rohay%2C+A+C%3BReidel%2C+S+P%3BHartshorn%2C+D+C%3BValenta%2C+M+M%3BAnonymous&rft.aulast=Rohay&rft.aufirst=A&rft.date=2002-04-01&rft.volume=73&rft.issue=2&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 97th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - acceleration; accelerometers; body waves; Cenozoic; Columbia River Basalt Group; computer programs; data processing; earthquakes; elastic waves; ground motion; Hanford Site; instruments; Miocene; Neogene; Nisqually earthquake 2001; Pliocene; Ringold Formation; S-waves; seismic waves; SHAKE; strong motion; Tertiary; United States; Washington ER - TY - JOUR T1 - Assessing uncertainties in phase arrival times for regional seismic events AN - 51142329; 2005-003589 JF - Seismological Research Letters AU - Velasco, A A AU - Anderson, D N AU - Young, C J AU - Anonymous Y1 - 2002/04// PY - 2002 DA - April 2002 SP - 227 PB - Seismological Society of America, El Cerrito, CA VL - 73 IS - 2 SN - 0895-0695, 0895-0695 KW - errors KW - seismicity KW - multivariate analysis KW - statistical analysis KW - elastic waves KW - waveforms KW - arrival time KW - earthquakes KW - measurement KW - automated analysis KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51142329?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Assessing+uncertainties+in+phase+arrival+times+for+regional+seismic+events&rft.au=Velasco%2C+A+A%3BAnderson%2C+D+N%3BYoung%2C+C+J%3BAnonymous&rft.aulast=Velasco&rft.aufirst=A&rft.date=2002-04-01&rft.volume=73&rft.issue=2&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 97th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - arrival time; automated analysis; earthquakes; elastic waves; errors; measurement; multivariate analysis; seismicity; statistical analysis; waveforms ER - TY - JOUR T1 - Simulation of wind-driven circulation in the Salton Sea: implications for indigenous ecosystems AN - 19802635; 5423016 AB - The Salton Sea, the largest `man-made' water body wholly within California, was formed in 1904 as the result of a levee failure along the Colorado River. Initially, flow into the Salton `Sink' created a fresh water lake about 24 m deep with a water surface about 85 m below the level of the ocean. Salinity of the water body, at first roughly the same as the river, rose rapidly due to solution of previously accumulated residual salt, then following levee repair, adjusted to the combined influence of agricultural drainage accretions and evaporative losses. Water levels adjusted accordingly, at first declining then rising slowly until the mid 1930s when a level about 75 m below ocean level was reached. Thereafter, both water levels and salinity gradually rose, so that at present the surface elevation of the Sea stands near -69.5 m and salinity is approaching 45 g l super(-1), about 30% above ocean salinity. The Salton Sea Authority is seeking practical methods for reducing water levels and controlling salinity within ranges that will protect beneficial uses of the Sea, its adjacent lands, and its indigenous ecosystems, both aquatic and avian. Proposed solutions include various physical changes in the bathymetry and configuration of the Sea, especially its southern basin. Because circulation in the Sea is driven primarily by wind stresses imposed on the water surface, and circulation changes are likely to affect the Sea's quality and ecology, a methodology for quantifying the effects of specific alternatives is required. For this purpose a mathematical model for simulation of the hydrodynamic behavior of the Sea has been developed, calibrated to data gathered by a field investigation conducted in 1997, and applied to alternative schemes that will isolate sections of the southern basin, thus changing the natural wind induced circulation in areas that are ecologically sensitive. The Salton Sea Hydrodynamic/Water Quality Model is constructed using the finite element method to represent the bathymetry of the Sea as it currently exists, or may subsequently be modified, in a three-dimensional grid. JF - Hydrobiologia AU - Cook, C B AU - Orlob, G T AU - Huston, D W AD - Pacific Northwest National Laboratory, P.O. Box 999 (K9-33), Richland, WA 99352, U.S.A. Y1 - 2002/04// PY - 2002 DA - Apr 2002 SP - 59 EP - 75 PB - Kluwer Academic Publishers VL - 473 IS - 1-3 SN - 0018-8158, 0018-8158 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Ecology Abstracts KW - water quality KW - Ecosystems KW - Hydrodynamics KW - Evaporation KW - Basins KW - Water quality KW - Water levels KW - USA, Colorado R. KW - Lakes KW - Salinity KW - INE, USA, California KW - Current velocity KW - Agricultural runoff KW - Wind KW - USA, California, Salton Sea KW - Rivers KW - Finite element method KW - Wind-driven circulation KW - Environmental impact KW - Brackish KW - Stress KW - Atmospheric circulation KW - Habitat KW - Salts KW - Numerical simulations KW - bathymetry KW - water bodies KW - finite element method KW - Surface water KW - Salt lakes KW - Water quality models KW - Models KW - Ecology KW - Water salinity KW - Ecosystem management KW - Marine KW - Mathematical models KW - Drainage KW - Simulation KW - Bathymetry KW - water levels KW - Oceans KW - drainage water KW - Lake dynamics KW - O 2010:Physical Oceanography KW - M2 551.465:Structure/Dynamics/Circulation (551.465) KW - P 1000:MARINE POLLUTION KW - D 04003:Modeling, mathematics, computer applications KW - Q2 09146:TSD distribution, water masses and circulation KW - D 04320:Brackishwater KW - Q5 08521:Mechanical and natural changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19802635?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrobiologia&rft.atitle=Simulation+of+wind-driven+circulation+in+the+Salton+Sea%3A+implications+for+indigenous+ecosystems&rft.au=Cook%2C+C+B%3BOrlob%2C+G+T%3BHuston%2C+D+W&rft.aulast=Cook&rft.aufirst=C&rft.date=2002-04-01&rft.volume=473&rft.issue=1-3&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Hydrobiologia&rft.issn=00188158&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-12-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Finite element method; Evaporation; Wind-driven circulation; Environmental impact; Salt lakes; Water quality; Habitat; Water levels; Salinity; Current velocity; Ecosystem management; Lake dynamics; Agricultural runoff; Hydrodynamics; Water salinity; Wind; Models; Ecology; Rivers; Mathematical models; Ecosystems; Numerical simulations; Drainage; Atmospheric circulation; Water quality models; Bathymetry; water quality; finite element method; water bodies; Surface water; Basins; Simulation; Stress; Salts; Lakes; water levels; Oceans; drainage water; bathymetry; USA, Colorado R.; INE, USA, California; USA, California, Salton Sea; Marine; Brackish ER - TY - JOUR T1 - Modeling the Inhibition of the Bacterial Reduction of U(VI) by beta MnO sub(2(s)) AN - 18584921; 5443792 AB - Pyrolusite ( beta -MnO sub(2(s))) was used to assess the influence of a competitive electron acceptor on the kinetics of reduction of aqueous uranyl carbonate by a dissimilatory metal-reducing bacterium (DMRB), Shewanella putrefaciens strain CN32. The enzymatic reduction of U(VI) and beta -MnO sub(2(s)) and the abiotic redox reaction between beta -MnO sub(2(s)) and biogenic uraninite (UO sub(2(s))) were independently investigated to allow for interpretation of studies of U(VI) bioreduction in the presence of beta -MnO sub(2(s)). Uranyl bioreduction to UO sub(2(s)) by CN32 with H sub(2) as the electron donor followed Monod kinetics, with a maximum specific reduction rate of 110 mu M/h/10 super(8) cells/mL and a half-saturation constant of 370 mu M. The bioreduction rate of beta -MnO sub(2(s)) by CN32 was described by a pseudo-first-order model with respect to beta -MnO sub(2(s)) surface sites, with a rate constant of 7.92 x 10 super(-2) h super(-1)/10 super(8) cells/mL. Uraninite that precipitated as a result of microbial U(VI) reduction was abiotically reoxidized to U(VI) by beta -MnO sub(2(s)), with concomitant reduction to Mn(II). The oxidation of biogenic UO sub(2(s)) coupled with beta -MnO sub(2(s)) reduction was well-described by an electrochemical model. However, a simple model that coupled the bacterial reduction of U(VI) and beta -MnO sub(2(s)) with an abiotic redox reaction between UO sub(2(s)) and beta -MnO sub(2(s)) failed to describe the mass loss of U(VI) in the presence of beta -MnO sub(2(s)). Transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS) revealed that the particle size and spatial distribution of the biogenic UO sub(2(s)) changed dynamically in systems with, as compared to without, beta -MnO sub(2(s)). These observations suggested that the surface properties and localization of UO sub(2(s)) in relation to the cell and beta -MnO sub(2(s)) surfaces was an important factor controlling the abiotic oxidation of UO sub(2(s)) and, thus, the overall rate and extent of U(VI) bioreduction. The coupled model that was modified to account for the "effective" contact surface area between UO sub(2(s)) and beta -MnO sub(2(s)) significantly improved the simulation of microbial reduction of U(VI) in the presence of beta -MnO sub(2(s)). JF - Environmental Science & Technology AU - Liu, Chongxuan AU - Zachara, J M AU - Fredrickson, J K AU - Kennedy, D W AU - Dohnalkova, A AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN K8-96, Richland, WA 99352, USA, chongxuan.liu@pnl.gov Y1 - 2002/04/01/ PY - 2002 DA - 2002 Apr 01 SP - 1452 EP - 1459 VL - 36 IS - 7 SN - 0013-936X, 0013-936X KW - metal-reducing bacteria KW - pyrolusite KW - uranyl carbonate KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01056:Mineral microbiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18584921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Modeling+the+Inhibition+of+the+Bacterial+Reduction+of+U%28VI%29+by+beta+MnO+sub%282%28s%29%29&rft.au=Liu%2C+Chongxuan%3BZachara%2C+J+M%3BFredrickson%2C+J+K%3BKennedy%2C+D+W%3BDohnalkova%2C+A&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2002-04-01&rft.volume=36&rft.issue=7&rft.spage=1452&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Effects of chemical reactions on density-dependent fluid flow: on the numerical formulation and the development of instabilities AN - 18565764; 5402345 AB - A three-dimensional, reactive numerical flow model is developed that couples chemical reactions with density-dependent mass transport and fluid flow. The model includes equilibrium reactions for the aqueous species, kinetic reactions between the solid and aqueous phases, and full coupling of porosity and permeability changes that result from precipitation and dissolution reactions in porous media. A one-step, global implicit approach is used to solve the coupled flow, transport and reaction equations with a fully implicit upstream-weighted control volume discretization. The Newton-Raphson method is applied to the discretized non-linear equations and a block ILU-preconditioned CGSTAB method is used to solve the resulting Jacobian matrix equations. This approach permits the solution of the complete set of governing equations for both concentration and pressure simultaneously affected by chemical and physical processes. A series of chemical transport simulations are conducted to investigate coupled processes of reactive chemical transport and density-dependent flow and their subsequent impact on the development of preferential flow paths in porous media. The coupled effects of the processes driving flow and the chemical reactions occurring during solute transport is studied using a carbonate system in fully saturated porous media. Results demonstrate that instability development is sensitive to the initial perturbation caused by density differences between the solute plume and the ambient groundwater. If the initial perturbation is large, then it acts as a "trigger" in the flow system that causes instabilities to develop in a planar reaction front. When permeability changes occur due to dissolution reactions occurring in the porous media, a reactive feedback loop is created by calcite dissolution and the mixed convective transport of the system. Although the feedback loop does not have a significant impact on plume shape, complex concentration distributions develop as a result of the instabilities generated in the flow system. JF - Advances in Water Resources AU - Freedman, V AU - Ibaraki, M AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN K9-36, Richland, WA 99352, USA, vicky.freedman@pnl.gov Y1 - 2002/04// PY - 2002 DA - Apr 2002 SP - 439 EP - 453 VL - 25 IS - 4 SN - 0309-1708, 0309-1708 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - AQ 00001:Water Resources and Supplies KW - Q2 02183:Physics and chemistry KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18565764?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Effects+of+chemical+reactions+on+density-dependent+fluid+flow%3A+on+the+numerical+formulation+and+the+development+of+instabilities&rft.au=Freedman%2C+V%3BIbaraki%2C+M&rft.aulast=Freedman&rft.aufirst=V&rft.date=2002-04-01&rft.volume=25&rft.issue=4&rft.spage=439&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Overview of URBAN 2000: A Multiscale Field Study of Dispersion through an Urban Environment AN - 18326141; 5373509 AB - A major urban tracer and meteorological field campaign (URBAN 2000) was conducted in Salt Lake City, Utah, during October 2000. Sponsored by the U.S. Department of Energy's (DOE's) Chemical and Biological National Security Program, the month-long field campaign received supplemental support (personnel and equipment) from other U.S. and foreign government agencies and private companies. Seven nighttime intensive experiments were designed to resolve, with both inert tracers and meteorological measurements, interacting scales of atmospheric motion from the individual building scale up through the urban scale. Scale interaction was extended beyond the urban scale to the regional scale by embedding the URBAN 2000 study in DOE's Vertical Transport and Mixing Program tracer and meteorological studies conducted simultaneously in the greater Salt Lake Valley. Results from the URBAN 2000 study will be used to evaluate and improve the hierarchy of atmospheric models being developed for simulating toxic agent dispersal from potential terrorist activities in urban environments. In addition, the results will be used to identify and further understand the meteorological and fluid dynamic processes governing dispersion in urban environments. The strength of the URBAN 2000 study is that it provides a dataset that resolves interacting scales of motion from the individual building up through the regional scale under the same meteorological conditions. This paper summarizes the URBAN 2000 study by describing the experimental design, instrument layout, experiments, and meteorological conditions investigated. The paper also discusses initial findings. JF - Bulletin of the American Meteorological Society AU - Allwine, K J AU - Shinn, J H AU - Streit, GE AU - Clawson, K L AU - Brown, M AD - Pacific Northwest National Laboratory, Richland, Washington Y1 - 2002/04// PY - 2002 DA - Apr 2002 SP - 521 EP - 551 PB - American Meteorological Society VL - 83 IS - 04 SN - 0003-0007, 0003-0007 KW - URBAN 2000 KW - terrorism KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Pollution dispersion KW - Tracers KW - Meteorology KW - USA, Utah, Salt Lake City KW - Urban areas KW - Toxic materials KW - Tracer studies of atmospheric dispersion KW - Air pollution KW - USA KW - Hazardous materials KW - Urban influences on atmospheric dispersion KW - Atmospheric chemistry KW - Urban air quality models KW - Urban environment KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - M2 551.511.6:Turbulence and diffusion (551.511.6) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18326141?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bulletin+of+the+American+Meteorological+Society&rft.atitle=Overview+of+URBAN+2000%3A+A+Multiscale+Field+Study+of+Dispersion+through+an+Urban+Environment&rft.au=Allwine%2C+K+J%3BShinn%2C+J+H%3BStreit%2C+GE%3BClawson%2C+K+L%3BBrown%2C+M&rft.aulast=Allwine&rft.aufirst=K&rft.date=2002-04-01&rft.volume=83&rft.issue=04&rft.spage=521&rft.isbn=&rft.btitle=&rft.title=Bulletin+of+the+American+Meteorological+Society&rft.issn=00030007&rft_id=info:doi/10.1043%2F1520-0477%282002%29083%280521%3AOOUAMF%292.3.CO%3B2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA, Utah, Salt Lake City; USA; Atmospheric chemistry; Air pollution; Urban areas; Pollution dispersion; Meteorology; Tracers; Toxic materials; Hazardous materials; Pollution monitoring; Tracer studies of atmospheric dispersion; Urban air quality models; Urban environment; Urban influences on atmospheric dispersion DO - http://dx.doi.org/10.1043/1520-0477(2002)083(0521:OOUAMF)2.3.CO;2 ER - TY - JOUR T1 - Theoretical determination of chromophores in the chromogenic effects of aromatic neurotoxicants. AN - 71521000; 11890826 AB - We report the first computational study of the chromophores responsible for the chromogenic effects of aromatic neurotoxicants containing a 1,2-diacetyl moiety in their oxidation metabolites. A series of ab initio electronic structure calculations was performed on two representative aromatic compounds, 1,2-diacetylbenzene (1,2-DAB) and 1,2-diacetyl tetramethyl tetralin (1,2-DATT), the putative active metabolites of the neurotoxic aromatic hydrocarbon compounds 1,2-diethylbenzene (1,2-DEB) and acetyl ethyl tetramethyl tetralin (AETT), and on the products of their possible reactions with proteins that result in chromogenic effects. The electronic excitation energies determined by three different computational approaches were found to be consistent with each other. The calculated results are consistent with the conclusion/prediction that the chromogenic effects of 1,2-DAB (or 1,2-DEB) and 1,2-DATT (or AETT) could result from ninhydrin-like reactions, rather than the formation of pyrrole-like compounds. Our pK(a) calculations further indicate that the chromophore, i.e., the product of the ninhydrin-like reaction showing the blue color, is deprotonated in neutral aqueous solution. The corresponding protonated structure has a different color as it absorbs in the blue region of the visible spectrum, and its chromogenic contribution would be significant in solution at low pH. JF - Journal of the American Chemical Society AU - Zhan, Chang-Guo AU - Dixon, David A AU - Sabri, Mohammad I AU - Kim, Min-Sun AU - Spencer, Peter S AD - Theory, Modeling & Simulation, William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, MS K1-83, P.O. Box 999, Richland, WA 99352, USA. Y1 - 2002/03/20/ PY - 2002 DA - 2002 Mar 20 SP - 2744 EP - 2752 VL - 124 IS - 11 SN - 0002-7863, 0002-7863 KW - 1,2-diacetyltetramethyltetralin KW - 0 KW - Acetophenones KW - Tetrahydronaphthalenes KW - 1,2-diacetylbenzene KW - 704-00-7 KW - Index Medicus KW - Models, Molecular KW - Molecular Conformation KW - Nervous System Diseases -- chemically induced KW - Structure-Activity Relationship KW - Tetrahydronaphthalenes -- metabolism KW - Acetophenones -- metabolism KW - Acetophenones -- chemistry KW - Acetophenones -- toxicity KW - Tetrahydronaphthalenes -- toxicity KW - Tetrahydronaphthalenes -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71521000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Chemical+Society&rft.atitle=Theoretical+determination+of+chromophores+in+the+chromogenic+effects+of+aromatic+neurotoxicants.&rft.au=Zhan%2C+Chang-Guo%3BDixon%2C+David+A%3BSabri%2C+Mohammad+I%3BKim%2C+Min-Sun%3BSpencer%2C+Peter+S&rft.aulast=Zhan&rft.aufirst=Chang-Guo&rft.date=2002-03-20&rft.volume=124&rft.issue=11&rft.spage=2744&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Chemical+Society&rft.issn=00027863&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-05-23 N1 - Date created - 2002-03-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - On being understood: clarity and jargon in radiation protection. AN - 85259077; pmid-11845840 AB - While much of the language used to express the concepts of radiation protection works effectively, there are many ill-chosen names and phrases and much jargon that permeate our professional speech and writing. From the oxymoron "internal exposure" to the "snarl word" "decay," there is much room for improvement. This essay identifies many of the problems and suggests solutions. We examine the kinds of confusions that can result from using familiar words with unfamiliar meanings and the need for neology. We offer insights into specific and unambiguous naming of physical quantities and explore the seemingly unlimited kinds of "dose." We disaggregate exposure from irradiation following intakes, and unmask units like "gram rad per microcurie hour." We call for a definition of radiation weighting factor that doesn't result in a violation of the law of conservation of energy. We examine the subtleties of distinguishing between radiation and radioactive materials. Some words, such as "exposure," have multiple meanings, while at other times there are different words or phrases with the same meaning, such as "critical level" and "decision level" or "detection level" and "minimum detectable amount." Sometimes phrases are used whose meaning is unclear or not agreed upon, such as "lower limit of detection." Sometimes there are words that are simply not apt, such as "disintegration" applied to the emission of a subatomic particle from a nucleus. JF - Health Physics AU - Strom, Daniel J AU - Watson, Charles R AD - Risk Analysis & Health Protection Group, Environmental Technology Division, Pacific Northwest National Laboratory, Richland, WA 99352-0999, USA. daniel.j PY - 2002 SP - 373 EP - 386 VL - 82 IS - 3 SN - 0017-9078, 0017-9078 KW - Occupational Exposure KW - Human KW - Nuclear Medicine KW - Support, U.S. Gov't, Non-P.H.S. KW - Radiation Protection KW - Terminology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/85259077?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+Physics&rft.atitle=On+being+understood%3A+clarity+and+jargon+in+radiation+protection.&rft.au=Strom%2C+Daniel+J%3BWatson%2C+Charles+R&rft.aulast=Strom&rft.aufirst=Daniel&rft.date=2002-03-01&rft.volume=82&rft.issue=3&rft.spage=373&rft.isbn=&rft.btitle=&rft.title=Health+Physics&rft.issn=00179078&rft_id=info:doi/ LA - eng DB - ComDisDome N1 - Last updated - 2010-05-07 ER - TY - JOUR T1 - A simulation approach to validate petrophysical data from NMR imaging AN - 52091003; 2002-050703 AB - Nuclear magnetic resonance (NMR) imaging was used to map the 3D porosity and permeability distributions in heterogeneous sandstone cores under controlled laboratory conditions. The porosity and permeability distributions so obtained were used to numerically simulate first-contact miscible displacements in the cores. The spatial and temporal solvent concentrations from the numerical simulations were compared to those from imaging experiments in the cores in an effort to validate the porosity and permeability data. The results show that with calibration, useful 3D porosity and permeability distributions of heterogeneous cores can be derived from NMR imaging (NMRI). JF - SPE Journal AU - Zuluaga, Elizabeth AU - Majors, Paul D AU - Peters, Ekwere J Y1 - 2002/03// PY - 2002 DA - March 2002 SP - 35 EP - 39 PB - Society of Petroleum Engineers, Richardson, TX VL - 7 IS - 1 SN - 1086-055X, 1086-055X KW - hydraulic fracturing KW - petroleum engineering KW - imagery KW - numerical models KW - petroleum KW - enhanced recovery KW - simulation KW - NMR spectra KW - petrography KW - reservoir properties KW - spectra KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52091003?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SPE+Journal&rft.atitle=A+simulation+approach+to+validate+petrophysical+data+from+NMR+imaging&rft.au=Zuluaga%2C+Elizabeth%3BMajors%2C+Paul+D%3BPeters%2C+Ekwere+J&rft.aulast=Zuluaga&rft.aufirst=Elizabeth&rft.date=2002-03-01&rft.volume=7&rft.issue=1&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=SPE+Journal&rft.issn=1086055X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 20 N1 - PubXState - TX N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - enhanced recovery; hydraulic fracturing; imagery; NMR spectra; numerical models; permeability; petrography; petroleum; petroleum engineering; reservoir properties; simulation; spectra ER - TY - JOUR T1 - Nanogeoscience; from the movement of electrons to lithosphere plates AN - 52139450; 2002-017409 JF - Eos, Transactions, American Geophysical Union AU - Lower, Steven K AU - Hochella, Michael F, Jr AU - Banfield, Jillian F AU - Rosso, Kevin M Y1 - 2002/02// PY - 2002 DA - February 2002 SP - 53 EP - 53, 55, 56 PB - American Geophysical Union, Washington, DC VL - 83 IS - 6 SN - 0096-3941, 0096-3941 KW - methods KW - high-resolution methods KW - chemical weathering KW - lithosphere KW - oxidation KW - sphalerite KW - crystal structure KW - crystal growth KW - weathering KW - TEM data KW - biomolecules KW - ultrastructure KW - biogenic processes KW - chemical reactions KW - metals KW - petrography KW - molecules KW - pyrite KW - sulfides KW - SEM data KW - minerals KW - electrons KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52139450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Nanogeoscience%3B+from+the+movement+of+electrons+to+lithosphere+plates&rft.au=Lower%2C+Steven+K%3BHochella%2C+Michael+F%2C+Jr%3BBanfield%2C+Jillian+F%3BRosso%2C+Kevin+M&rft.aulast=Lower&rft.aufirst=Steven&rft.date=2002-02-01&rft.volume=83&rft.issue=6&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 11 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - biogenic processes; biomolecules; chemical reactions; chemical weathering; crystal growth; crystal structure; electrons; high-resolution methods; lithosphere; metals; methods; minerals; molecules; oxidation; petrography; pyrite; SEM data; sphalerite; sulfides; TEM data; ultrastructure; weathering ER - TY - JOUR T1 - The inhibition of marine nitrification by ocean disposal of carbon dioxide AN - 19931512; 5358987 AB - In an attempt to reduce the threat of global warming, it has been proposed that the rise of atmospheric carbon dioxide concentrations be reduced by the ocean disposal of CO sub(2) from the flue gases of fossil fuel-fired power plants. The release of large amounts of CO sub(2) into mid or deep ocean waters will result in large plumes of acidified seawater with pH values ranging from 6 to 8. In an effort to determine whether these CO sub(2)-induced pH changes have any effect on marine nitrification processes, surficial (euphotic zone) and deep (aphotic zone) seawater samples were sparged with CO sub(2) for varying time durations to achieve a specified pH reduction, and the rate of microbial ammonia oxidation was measured spectrophotometrically as a function of pH using an inhibitor technique. For both seawater samples taken from either the euphotic or aphotic zone, the nitrification rates dropped drastically with decreasing pH. Relative to nitrification rates in the original seawater at pH 8, nitrification rates were reduced by ca. 50% at pH 7 and more than 90% at pH 6.5. Nitrification was essentially completely inhibited at pH 6. These findings suggest that the disposal of CO sub(2) into mid or deep oceans will most likely result in a drastic reduction of ammonia oxidation rates within the pH plume and the concomitant accumulation of ammonia instead of nitrate. It is unlikely that ammonia will reach the high concentration levels at which marine aquatic organisms are known to be negatively affected. However, if the ammonia-rich seawater from inside the pH plume is upwelled into the euphotic zone, it is likely that changes in phytoplankton abundance and community structure will occur. Finally, the large-scale inhibition of nitrification and the subsequent reduction of nitrite and nitrate concentrations could also result in a decrease of denitrification rates which, in turn, could lead to the buildup of nitrogen and unpredictable eutrophication phenomena. Clearly, more research on the environmental effects of ocean disposal of CO sub(2) is needed to determine whether the potential costs related to marine ecosystem disturbance and disruption can be justified in terms of the perceived benefits that may be achieved by temporarily delaying global warming. JF - Marine Pollution Bulletin AU - Huesemann, M H AU - Skillman, AD AU - Crecelius, E A AD - Marine Sciences Laboratory, Pacific Northwest National Laboratory, 1529 West Sequim Bay Road, Sequim, WA 98382, USA, michael.huesemann@pnl.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 142 EP - 148 VL - 44 IS - 2 SN - 0025-326X, 0025-326X KW - global warming KW - Meteorological & Geoastrophysical Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Environmental Effects KW - Bioremediation KW - Phytoplankton KW - Hydrogen ion concentrations KW - Marine environment KW - Chemical inhibitors KW - Sedimentation KW - pH KW - Experimental Data KW - Atmospheric gases KW - Ammonia KW - Flue gas KW - Carbon cycle KW - Carbon dioxide in seawater KW - Greenhouse effect KW - Inhibition KW - Global Warming KW - Nitrification KW - Water Pollution Effects KW - Oxidation KW - Atmospheric chemistry KW - Carbon dioxide KW - Plankton KW - Carbon Dioxide KW - Ocean dumping KW - Pollution (Environmental) KW - Ocean Dumping KW - Eutrophication KW - Seawater KW - Power plants KW - Denitrification in seas KW - Marine ecosystems KW - Waste disposal KW - Marine KW - Euphotic zone KW - Ocean disposal KW - Aphotic zone KW - World Oceans KW - Biogeochemical cycle KW - Waste Disposal KW - Hydrogen Ion Concentration KW - Marine pollution KW - Disposal KW - Global warming KW - Pollution (Water) KW - SW 3050:Ultimate disposal of wastes KW - M2 551.465:Structure/Dynamics/Circulation (551.465) KW - O 4080:Pollution - Control and Prevention KW - P 1000:MARINE POLLUTION KW - AQ 00008:Effects of Pollution KW - SW 3030:Effects of pollution KW - A 01108:Other water systems KW - Q5 08522:Protective measures and control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19931512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Pollution+Bulletin&rft.atitle=The+inhibition+of+marine+nitrification+by+ocean+disposal+of+carbon+dioxide&rft.au=Huesemann%2C+M+H%3BSkillman%2C+AD%3BCrecelius%2C+E+A&rft.aulast=Huesemann&rft.aufirst=M&rft.date=2002-02-01&rft.volume=44&rft.issue=2&rft.spage=142&rft.isbn=&rft.btitle=&rft.title=Marine+Pollution+Bulletin&rft.issn=0025326X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-09-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Euphotic zone; Atmospheric gases; Bioremediation; Aphotic zone; Biogeochemical cycle; Ammonia; Carbon cycle; Greenhouse effect; Nitrification; Atmospheric chemistry; Carbon dioxide; Sedimentation; pH; Disposal; Eutrophication; Marine environment; Oxidation; Global warming; Denitrification in seas; Carbon dioxide in seawater; Marine ecosystems; Ocean dumping; Marine pollution; Seawater; Power plants; Flue gas; Pollution (Environmental); Ocean disposal; Chemical inhibitors; Waste disposal; Pollution (Water); Plankton; Hydrogen ion concentrations; Environmental Effects; Experimental Data; Ocean Dumping; Waste Disposal; Hydrogen Ion Concentration; Phytoplankton; Inhibition; Global Warming; Water Pollution Effects; Carbon Dioxide; World Oceans; Marine ER - TY - JOUR T1 - Application of critical path analysis to fractal porous media: comparison with examples from the Hanford site AN - 1665485589; 5377646 AB - Critical path analysis from percolation theory is used to calculate the unsaturated hydraulic conductivity, K(S), of soils with pore space compatible with a (sometimes complex) fractal description. The fractal descriptions are chosen in accord with particle-size distributions of two soils at the US Department of Energy Hanford Site. One of the two soils exhibits a bimodal particle-size distribution, and is treated as a "dual" fractal. The results are then compared with measured hydraulic properties of these two soils. The analysis yields excellent agreement with experiment over 4-6 orders of magnitude in most investigated properties without use of fitting parameters. It is possible to show that such unusual phenomena as a sudden increase in the spread of K values with reduction of matric potential can be traced to effects of a bimodal distribution of pore sizes. The least certain parameter for calculation of K is the "critical volume fraction", alpha sub(c), which describes the minimum water content for which an interconnected network of capillary flow exists. The values deduced for alpha sub(c), however, allow consistent interpretation in both soils investigated (in contrast to fitted values of a "residual moisture content" obtained by application of the van Genuchten function). Further, values of alpha sub(c) obtained correspond well with threshold moisture contents for solute diffusion reported elsewhere, evidence for the relevance of percolation to dispersion. JF - Advances in Water Resources AU - Hunt, A G AU - Gee, G W AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, allen.hunt@pnl.gov Y1 - 2002/02// PY - 2002 DA - Feb 2002 SP - 129 EP - 146 VL - 25 IS - 2 SN - 0309-1708, 0309-1708 KW - USA, Washington, Richland, Hanford Site KW - Water Resources Abstracts; Aqualine Abstracts KW - Soil Water Movement KW - Theoretical Analysis KW - Pore Size KW - Case Studies KW - Groundwater flow KW - Soil/water systems KW - USA, Washington, Richland KW - Permeability Coefficient KW - Fractals KW - Mathematical Studies KW - Percolation KW - Soil (Characteristics of) KW - Soil Properties KW - Permeation KW - SW 0845:Water in soils KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1665485589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Application+of+critical+path+analysis+to+fractal+porous+media%3A+comparison+with+examples+from+the+Hanford+site&rft.au=Hunt%2C+A+G%3BGee%2C+G+W&rft.aulast=Hunt&rft.aufirst=A&rft.date=2002-02-01&rft.volume=25&rft.issue=2&rft.spage=129&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Percolation; Soil (Characteristics of); Soil/water systems; Groundwater flow; Permeation; Fractals; Theoretical Analysis; Soil Water Movement; Mathematical Studies; Pore Size; Case Studies; Soil Properties; Permeability Coefficient; USA, Washington, Richland ER - TY - JOUR T1 - Fish individual-based numerical simulator (FINS): a particle-based model of juvenile salmonid movement and dissolved gas exposure history in the Columbia River basin AN - 18375647; 5351134 AB - This paper describes a numerical model of juvenile salmonid movements in the Columbia and Snake Rivers. The model, called the Fish Individual-based Numerical Simulator or FINS, employs a discrete, particle-based approach to simulate the movements and history of exposure to dissolved gases of individual fish. FINS is linked to a two-dimensional (vertically-averaged) hydrodynamic simulator that quantifies local water velocity, temperature, and dissolved gas levels as a function of river flow rates and dam operations. Simulated gas exposure histories can be input to biological mortality models to predict the effects of various river configurations on fish injury and mortality due to dissolved gas supersaturation. Therefore, FINS serves as a critical linkage between hydrodynamic models of the river system and models of biological effects. FINS model parameters were based on observations of individual fish movements collected using radiotelemetry methods during 1997 and 1998. A quasi-inverse approach was used to decouple fish swimming movements from advection with the local water velocity, allowing inference of time series of non-advective displacements of individual fish from the radiotelemetry data. Statistical analyzes of these displacements confirm that strong temporal correlation of fish swimming behavior persists in some cases over several hours. A correlated random-walk model was employed to simulate the observed behavior, and parameters of the model were estimated that lead to close correspondence between predictions and observations. JF - Ecological Modelling AU - Scheibe, T D AU - Richmond, M C AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K9-36, Richland, WA 99352, USA, tim.scheibe@pnl.gov Y1 - 2002/01/30/ PY - 2002 DA - 2002 Jan 30 SP - 233 EP - 252 VL - 147 IS - 3 SN - 0304-3800, 0304-3800 KW - Salmonids KW - dissolved gas KW - Ecology Abstracts; ASFA 1: Biological Sciences & Living Resources; Water Resources Abstracts KW - D 04003:Modeling, mathematics, computer applications KW - Q1 01421:Migrations and rhythms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18375647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Fish+individual-based+numerical+simulator+%28FINS%29%3A+a+particle-based+model+of+juvenile+salmonid+movement+and+dissolved+gas+exposure+history+in+the+Columbia+River+basin&rft.au=Scheibe%2C+T+D%3BRichmond%2C+M+C&rft.aulast=Scheibe&rft.aufirst=T&rft.date=2002-01-30&rft.volume=147&rft.issue=3&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Blind field test evaluation of Raman spectroscopy as a forensic tool. AN - 71463212; 11852198 AB - Analytical instrumentation for Raman spectroscopy has advanced rapidly in recent years to the point where commercial field-portable instruments are available. Raman analysis with portable instrumentation is a new capability that can provide emergency response teams with on-site evaluation of hazardous materials. Before Raman analysis is accepted and implemented in the field, realistic studies applied to unknown samples need to be performed to define the reliability of this technique. Studies described herein provide a rigorous blind field test that utilizes two instruments and two operators to analyze a matrix that consists of 58 unknown samples. Samples were searched against a custom hazardous materials reference library (Hazardous Material Response Unit (HMRU) Spectral Library Database). Experimental design included a number of intentionally difficult situations including binary solvent mixtures and a variety of compounds that yield medium-quality spectra that were not contained in the HMRU library. Results showed that over 97% of the samples were correctly identified with no occurrences of false positive identifications (compounds that were not in the library were never identified as library constituents). Statistical analysis indicated equivalent performance for both the operators and instruments. These results indicate a high level of performance that should extrapolate to actual field situations. Implementation of Raman techniques to emergency field situations should proceed with a corresponding level of confidence. JF - Forensic science international AU - Harvey, S D AU - Vucelick, M E AU - Lee, R N AU - Wright, B W AD - Pacific Northwest National Laboratory, Battelle Boulevard, P.O. Box 999, Richland, WA 99352, USA. scott.harvey@pnl.gov Y1 - 2002/01/24/ PY - 2002 DA - 2002 Jan 24 SP - 12 EP - 21 VL - 125 IS - 1 SN - 0379-0738, 0379-0738 KW - Hazardous Substances KW - 0 KW - Index Medicus KW - Equipment Design KW - Humans KW - Program Development KW - Observer Variation KW - Forensic Medicine -- standards KW - Forensic Medicine -- statistics & numerical data KW - Forensic Medicine -- methods KW - Spectrum Analysis, Raman -- instrumentation KW - Hazardous Substances -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71463212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Forensic+science+international&rft.atitle=Blind+field+test+evaluation+of+Raman+spectroscopy+as+a+forensic+tool.&rft.au=Harvey%2C+S+D%3BVucelick%2C+M+E%3BLee%2C+R+N%3BWright%2C+B+W&rft.aulast=Harvey&rft.aufirst=S&rft.date=2002-01-24&rft.volume=125&rft.issue=1&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Forensic+science+international&rft.issn=03790738&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-04-23 N1 - Date created - 2002-02-19 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Thermosensitive sol-gel reversible hydrogels. AN - 71343186; 11755705 AB - Aqueous polymer solutions that are transformed into gels by changes in environmental conditions, such as temperature and pH, thus resulting in in situ hydrogel formation, have recently attracted the attention of many investigators for scientific interest and for practical biomedical or pharmaceutical applications. When the hydrogel is formed under physiological conditions and maintains its integrity for a desired period of time, the process may provide various advantages over conventional hydrogels. Because of the simplicity of pharmaceutical formulation by solution mixing, biocompatibility with biological systems, and convenient administration, the pharmaceutical and biomedical uses of the water-based sol-gel transition include solubilization of low-molecular-weight hydrophobic drugs, controlled release, labile biomacromolecule delivery, such as proteins and genes, cell immobilization, and tissue engineering. When the formed gel is proven to be biocompatible and biodegradable, producing non-toxic degradation products, it will provide further benefits for in vivo applications where degradation is desired. It is timely to summarize the polymeric systems that undergo sol-gel transitions, particularly due to temperature, with emphasis on the underlying transition mechanisms and potential delivery aspects. This review stresses the polymeric systems of natural or modified natural polymers, N-isopropylacrylamide copolymers, poly(ethylene oxide)/poly(propylene oxide) block copolymers, and poly(ethylene glycol)/poly(D,L-lactide-co-glycolide) block copolymers. JF - Advanced drug delivery reviews AU - Jeong, Byeongmoon AU - Kim, Sung Wan AU - Bae, You Han AD - Pacific Northwest National Laboratory (PNNL), 902 Battelle Blvd. P.O. Box 999, K2-44, Richland, WA 99352, USA. Y1 - 2002/01/17/ PY - 2002 DA - 2002 Jan 17 SP - 37 EP - 51 VL - 54 IS - 1 SN - 0169-409X, 0169-409X KW - Hydrogels KW - 0 KW - Polymers KW - Index Medicus KW - Hydrogen-Ion Concentration KW - Temperature KW - Drug Delivery Systems KW - Tissue Engineering KW - Polymers -- chemistry KW - Hydrogels -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71343186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advanced+drug+delivery+reviews&rft.atitle=Thermosensitive+sol-gel+reversible+hydrogels.&rft.au=Jeong%2C+Byeongmoon%3BKim%2C+Sung+Wan%3BBae%2C+You+Han&rft.aulast=Jeong&rft.aufirst=Byeongmoon&rft.date=2002-01-17&rft.volume=54&rft.issue=1&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Advanced+drug+delivery+reviews&rft.issn=0169409X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-02-21 N1 - Date created - 2001-12-28 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Microdosimetric properties of ionizing electrons in water: a test of the PENELOPE code system. AN - 71402001; 11814229 AB - The ability to simulate the tortuous path of very low-energy electrons in condensed matter is important for a variety of applications in radiobiology. Event-by-event Monte Carlo codes such as OREC, MOCA and PITS represent the preferred method of computing distributions of microdosimetric quantities. However, event-by-event Monte Carlo is computationally expensive, and the cross sections needed to transport simulations to this level of detail are usually only available for water. In the recently developed PENELOPE code system, 'hard' electron and positron interactions are simulated in a detailed way while soft' interactions are treated using multiple scattering theory. Using this mixed simulation algorithm, electrons and positrons can be transported down to energies as low as 100 eV. To our knowledge, PENELOPE is the first widely available, general purpose Monte Carlo code system capable of transporting electrons and positrons in arbitrary media down to such low energies. The ability to transport electrons and positrons to such low energies opens up the possibility of using a general purpose Monte Carlo code system for microdosimetry. This paper presents the results of a code intercomparison study designed to test the applicability of the PENELOPE code system for microdosimetry applications. For sites comparable in size to a mammalian cell or cell nucleus, single-event distributions, site-hit probabilities and the frequency-mean specific energy per event are in reasonable agreement with those predicted using event-by-event Monte Carlo. Site-hit probabilities and the mean specific energy per event can be estimated to within about 1-10% of those predicted using event-by-event Monte Carlo. However, for some combinations of site size and source-target geometry, site-hit probabilities and the mean specific energy per event may only agree to within 25-60%. The most problematic source-target geometry is one in which the emitted electrons are very close to the tally site (e.g., a point source on the surface of a cell). Although event-by-event Monte Carlo will continue to be the method of choice for microdosimetry, PENELOPE is a useful, computationally efficient tool for some classes of microdosimetry problem. PENELOPE may prove particularly useful for applications that involve radiation transport through materials other than water or for applications that are too computationally intensive for event-by-event Monte Carlo, such as in vivo microdosimetry of spatially complex distributions of radioisotopes inside the human body. JF - Physics in medicine and biology AU - Stewart, R D AU - Wilson, W E AU - McDonald, J C AU - Strom, D J AD - Pacific Northwest National Laboratory, Richland, WA 99352-0999, USA. trebor@pnl.gov Y1 - 2002/01/07/ PY - 2002 DA - 2002 Jan 07 SP - 79 EP - 88 VL - 47 IS - 1 SN - 0031-9155, 0031-9155 KW - Ions KW - 0 KW - Index Medicus KW - Software KW - Electrons KW - Humans KW - Dose-Response Relationship, Radiation KW - Monte Carlo Method KW - Radiometry -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71402001?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+in+medicine+and+biology&rft.atitle=Microdosimetric+properties+of+ionizing+electrons+in+water%3A+a+test+of+the+PENELOPE+code+system.&rft.au=Stewart%2C+R+D%3BWilson%2C+W+E%3BMcDonald%2C+J+C%3BStrom%2C+D+J&rft.aulast=Stewart&rft.aufirst=R&rft.date=2002-01-07&rft.volume=47&rft.issue=1&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Physics+in+medicine+and+biology&rft.issn=00319155&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-07-22 N1 - Date created - 2002-01-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Treatment of explosive compounds in unsaturated sediment using oxidizing gas mixtures AN - 855196693; 2011-025267 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Gilmore, Tyler AU - Cantrell, Kirk AU - Thornton, Edward A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2G EP - 05 PB - Battelle Press, Columbus, OH VL - 3 KW - soils KW - pollutants KW - oxidation KW - unsaturated zone KW - pollution KW - trinitrotoluene KW - techniques KW - RDX KW - remediation KW - ground water KW - aquifers KW - triazines KW - organic compounds KW - solvents KW - explosives KW - decontamination KW - nitrate ion KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Treatment+of+explosive+compounds+in+unsaturated+sediment+using+oxidizing+gas+mixtures&rft.au=Gilmore%2C+Tyler%3BCantrell%2C+Kirk%3BThornton%2C+Edward&rft.aulast=Gilmore&rft.aufirst=Tyler&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 9 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aquifers; decontamination; explosives; ground water; nitrate ion; organic compounds; oxidation; pollutants; pollution; RDX; remediation; soils; solvents; techniques; triazines; trinitrotoluene; unsaturated zone ER - TY - JOUR T1 - Evidence of thermophilic biodegradation for PAHs and diesel in soil AN - 855196611; 2011-025271 JF - International Conference on Remediation of Chlorinated and Recalcitrant Compounds AU - Huesemann, M H AU - Hausmann, T S AU - Fortman, T J AU - Truex, M J A2 - Gavaskar, Arun R. A2 - Chen, Abraham S. C. Y1 - 2002 PY - 2002 DA - 2002 SP - Paper 2G EP - 09 PB - Battelle Press, Columbus, OH VL - 3 KW - soils KW - biodegradation KW - in situ KW - naphthalene KW - thermal properties KW - unsaturated zone KW - pollution KW - bioavailability KW - petroleum products KW - bioremediation KW - remediation KW - ground water KW - aquifers KW - thermal treatment KW - pyrene KW - phenanthrene KW - organic compounds KW - solvents KW - chrysene KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - kinetics KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855196611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.atitle=Evidence+of+thermophilic+biodegradation+for+PAHs+and+diesel+in+soil&rft.au=Huesemann%2C+M+H%3BHausmann%2C+T+S%3BFortman%2C+T+J%3BTruex%2C+M+J&rft.aulast=Huesemann&rft.aufirst=M&rft.date=2002-01-01&rft.volume=3&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Conference+on+Remediation+of+Chlorinated+and+Recalcitrant+Compounds&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 15 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #05518 N1 - SubjectsTermNotLitGenreText - aquifers; aromatic hydrocarbons; bioavailability; biodegradation; bioremediation; chrysene; ground water; hydrocarbons; in situ; kinetics; naphthalene; organic compounds; petroleum products; phenanthrene; pollution; polycyclic aromatic hydrocarbons; pyrene; remediation; soils; solvents; thermal properties; thermal treatment; unsaturated zone ER - TY - JOUR T1 - Current challenges in personal dosimetry at the US DOE Hanford site. AN - 72183611; 12382727 AB - An overview is presented of the dosimetry system, dose equivalent calculation methodology, and QA/QC practices used at the US Department of Energy Hanford site. It describes some of the problems encountered in accurately measuring dose equivalent quantities under a broad range of field conditions that do not necessarily correlate with laboratory calibration conditions and the approach taken to solve these problems. Personnel at Hanford are monitored with a combination of Harshaw model 8825 and 8816 thermoluminescence dosemeters and CR-39 etched track dosemeters. Extremities are monitored using the ICN MeasuRing loaded with a Harshaw XD740 chipstrate TLD. All dosemeters employ LiF:Mg,Ti elements that are read on-site with Harshaw model 8800 and 6600 TLD readers. CR-39 dosemeters are electrochemically etched in non-commercial etch chambers and counted with an automated track counting system developed by Pacific Northwest National Laboratory. Problems with over response of the 8825 with respect to Hp(0.07), under-response of the 8825 with respect to Hp(3), and over response of the 8825 with respect to Hp(10) in Hanford's 90Sr/90Y beta radiation fields are discussed. Approaches to measurement of the operational quantities for field conditions and algorithm solutions to the above problems are described. Methods used to calibrate the ring dosemeter for Hanford field conditions together with limitations of the ring dosemeter in measuring Hp(0.07) for extremities, particularly when covered with protective clothing, are also discussed. JF - Radiation protection dosimetry AU - Rathbone, B A AU - McDonald, J C AU - Traub, R J AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. bruce.rathbone@pnl.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 153 EP - 166 VL - 101 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Cesium Radioisotopes KW - 0 KW - Yttrium Radioisotopes KW - Strontium KW - YZS2RPE8LE KW - Index Medicus KW - United States KW - Neutrons KW - Equipment Design KW - Gamma Rays KW - Government Agencies KW - Algorithms KW - Calibration KW - Beta Particles KW - Quality Control KW - Thermoluminescent Dosimetry -- methods KW - Thermoluminescent Dosimetry -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72183611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Current+challenges+in+personal+dosimetry+at+the+US+DOE+Hanford+site.&rft.au=Rathbone%2C+B+A%3BMcDonald%2C+J+C%3BTraub%2C+R+J&rft.aulast=Rathbone&rft.aufirst=B&rft.date=2002-01-01&rft.volume=101&rft.issue=1-4&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-04-23 N1 - Date created - 2002-10-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Characteristics and performance of the Sunna high dose dosemeter using green photoluminescence and UV absorption readout methods. AN - 72183510; 12382704 AB - Growth in the use of ionising radiation for medical sterilisation and the potential for wide-scale international food irradiation have created the need for robust, mass-producible, inexpensive, and highly accurate radiation dosemeters. The Sunna dosemeter, lithium fluoride injection-moulded in a polyethylene matrix, can be read out using either green photoluminescence or ultraviolet (UV) absorption. The Sunna dosemeter can be mass-produced inexpensively with high precision. Both the photoluminescent and the UV absorption reader are simple and inexpensive. Both methods of analysis display negligible humidity effects, minimal dose rate dependence, acceptable post-irradiation effects, and permit measurements with a precision of nearly 1% 1sigma. The UV method shows negligible irradiation temperature effects from -30 degrees C to +60 degrees C. The photoluminescence method shows negligible irradiation temperature effects above room temperature for sterilisation dose levels and above. The dosimetry characteristics of these two readout methods are presented along with performance data in commercial sterilisation facilities. JF - Radiation protection dosimetry AU - Miller, S D AU - Murphy, M K AU - Tinker, M R AU - Kovacs, A AU - McLaughlin, W AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. sd-miller@pnl.gov Y1 - 2002 PY - 2002 DA - 2002 SP - 53 EP - 58 VL - 101 IS - 1-4 SN - 0144-8420, 0144-8420 KW - Index Medicus KW - Reproducibility of Results KW - Luminescent Measurements KW - Humidity KW - Time Factors KW - Radiation Dosage KW - Ultraviolet Rays KW - Radiometry -- instrumentation KW - Radiometry -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72183510?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Characteristics+and+performance+of+the+Sunna+high+dose+dosemeter+using+green+photoluminescence+and+UV+absorption+readout+methods.&rft.au=Miller%2C+S+D%3BMurphy%2C+M+K%3BTinker%2C+M+R%3BKovacs%2C+A%3BMcLaughlin%2C+W&rft.aulast=Miller&rft.aufirst=S&rft.date=2002-01-01&rft.volume=101&rft.issue=1-4&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2003-04-23 N1 - Date created - 2002-10-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Is it useful to assess annual effective doses that are less than 100 mSv? AN - 71570796; 11926376 AB - Questions such as 'How small is small?' and 'How low is low enough?' have long plagued radiation dosimetrists and risk management personnel. Unfortunately, our knowledge about the biological effects of low levels of ionising radiation is scarce and uncertain. If we look to the results of epidemiological studies, we find that it is not easy to arrive at firm conclusions. However, some current radiobiological experiments using microbeams of various radiations, along with improved theoretical models of radiation action, may shed new light on the effects of low levels of ionising radiation. What shall we do in the meantime? Both of our debaters agree that monitoring of radiation workers is necessary, yet careful consideration must be given to the rationale for providing personal monitoring. There is no question that we have done a good job of protecting radiation workers for many years, but we also must be aware of the many implications of our efforts. JF - Radiation protection dosimetry AU - Strom, D J AU - Cameron, J R AD - Pacific Northwest National Laboratory, Richland, Washington, USA. Y1 - 2002 PY - 2002 DA - 2002 SP - 239 EP - 245 VL - 98 IS - 2 SN - 0144-8420, 0144-8420 KW - Index Medicus KW - Occupational Exposure KW - Neoplasms -- mortality KW - Humans KW - Safety KW - Occupational Diseases -- prevention & control KW - Occupational Diseases -- etiology KW - Neoplasms, Radiation-Induced -- mortality KW - Dose-Response Relationship, Radiation KW - Radiology KW - Occupational Diseases -- mortality KW - Transportation KW - United Kingdom -- epidemiology KW - Adult KW - Environmental Exposure KW - Neoplasms, Radiation-Induced -- prevention & control KW - Male KW - Radiation Dosage KW - Radiation Monitoring -- standards KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71570796?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+protection+dosimetry&rft.atitle=Is+it+useful+to+assess+annual+effective+doses+that+are+less+than+100+mSv%3F&rft.au=Strom%2C+D+J%3BCameron%2C+J+R&rft.aulast=Strom&rft.aufirst=D&rft.date=2002-01-01&rft.volume=98&rft.issue=2&rft.spage=239&rft.isbn=&rft.btitle=&rft.title=Radiation+protection+dosimetry&rft.issn=01448420&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-10-10 N1 - Date created - 2002-04-02 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Sorption of Cs (super +) to micaceous subsurface sediments from the Hanford Site, USA AN - 52118431; 2002-018070 AB - The sorption of Cs (super +) was investigated over a large concentration range (10 (super -9) -10 (super -2) mol/L) on subsurface sediments from a United States nuclear materials site (Hanford) where high-level nuclear wastes (HLW) have been accidentally released to the vadose zone. The sediment sorbs large amounts of radiocesium, but expedited migration has been observed when HLW (a NaNO (sub 3) brine) is the carrier. Cs (super +) sorption was measured on homoionic sediments (Na (super +) , K (super +) , Ca (super 2+) ) with electrolyte concentrations ranging from 0.01 to 1.0 mol/L. In Na (super +) electrolyte, concentrations were extended to near saturation with NaNO (sub 3(s)) (7.0 mol/L). The sediment contained nonexpansible (biotite, muscovite) and expansible (vermiculite, smectite) phyllosilicates. The sorption data were interpreted according to the frayed edge-planar site conceptual model. A four-parameter, two-site (high- and low-affinity) numeric ion exchange model was effective in describing the sorption data. The high-affinity sites were ascribed to wedge zones on the micas where particle edges have partially expanded due to the removal of interlayer cations during weathering, and the low-affinity ones to planar sites on the expansible clays. The electrolyte cations competed with Cs (super +) for both high- and low-affinity sites according to the trend K (super +) >> Na (super +) > or = Ca (super 2+) . At high salt concentration, Cs (super +) adsorption occurred only on high-affinity sites. Na (super +) was an effective competitor for the high-affinity sites at high salt concentrations. In select experiments, silver-thiourea (AgTU) was used as a blocking agent to further isolate and characterize the high-affinity sites, but the method was found to be problematic. Mica particles were handpicked from the sediment, contacted with Cs (super +) (sub (aq)) , and analyzed by electron microprobe to identify phases and features important to Cs (super +) sorption. The microprobe study implied that biotite was the primary contributor of high-affinity sites because of its weathered periphery. The poly-phase sediment exhibited close similarity in ion selectivity to illite, which has been well studied, although its proportion of high-affinity sites relative to the cation exchange capacity (CEC) was lower than that of illite. Important insights are provided on how Na (super +) in HLW and indigenous K (super +) displaced from the sediments may act to expedite the migration of strongly sorbing Cs (super +) in subsurface environments. JF - Geochimica et Cosmochimica Acta AU - Zachara, John M AU - Smith, Steven C AU - Liu, Chongxuan AU - McKinley, James P AU - Serne, R Jeffrey AU - Gassman, Paul L Y1 - 2002/01// PY - 2002 DA - January 2002 SP - 193 EP - 211 PB - Pergamon, Oxford VL - 66 IS - 2 SN - 0016-7037, 0016-7037 KW - United States KW - silicates KW - sorption KW - desorption KW - X-ray diffraction data KW - isotopes KW - muscovite KW - waste disposal sites KW - unsaturated zone KW - radioactive decay KW - radioactive waste KW - ground water KW - laboratory studies KW - radioactive isotopes KW - cesium KW - mica group KW - sediments KW - ion exchange KW - geochemistry KW - soils KW - experimental studies KW - Washington KW - clastic sediments KW - pollutants KW - alkali metals KW - pollution KW - Hanford Site KW - electrolytes KW - adsorption KW - models KW - Cs-137 KW - metals KW - biotite KW - sheet silicates KW - waste disposal KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52118431?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Sorption+of+Cs+%28super+%2B%29+to+micaceous+subsurface+sediments+from+the+Hanford+Site%2C+USA&rft.au=Zachara%2C+John+M%3BSmith%2C+Steven+C%3BLiu%2C+Chongxuan%3BMcKinley%2C+James+P%3BSerne%2C+R+Jeffrey%3BGassman%2C+Paul+L&rft.aulast=Zachara&rft.aufirst=John&rft.date=2002-01-01&rft.volume=66&rft.issue=2&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2801%2900759-1 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2002-01-01 N1 - Number of references - 43 N1 - Document feature - illus. incl. 6 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; alkali metals; biotite; cesium; clastic sediments; Cs-137; desorption; electrolytes; experimental studies; geochemistry; ground water; Hanford Site; ion exchange; isotopes; laboratory studies; metals; mica group; models; muscovite; pollutants; pollution; radioactive decay; radioactive isotopes; radioactive waste; sediments; sheet silicates; silicates; soils; sorption; United States; unsaturated zone; Washington; waste disposal; waste disposal sites; X-ray diffraction data DO - http://dx.doi.org/10.1016/S0016-7037(01)00759-1 ER - TY - JOUR T1 - Multi-region transport and competitive ion exchange in partially saturated porous media AN - 52065019; 2002-066969 JF - Developments in Water Science AU - Yabusaki, S B A2 - Hassanizadeh, S. Majid A2 - Schotting, Ruud J. A2 - Gray, William G. A2 - Pinder, George F. Y1 - 2002 PY - 2002 DA - 2002 SP - 579 EP - 585 PB - Elsevier, Amsterdam-Oxford-New York VL - 47, Vol. 1 SN - 0167-5648, 0167-5648 KW - United States KW - sorption KW - isotopes KW - unsaturated zone KW - Grant County Washington KW - Franklin County Washington KW - radioactive waste KW - ground water KW - radioactive isotopes KW - cesium KW - transport KW - tracers KW - ion exchange KW - Benton County Washington KW - mobility KW - Washington KW - pollutants KW - alkali metals KW - pollution KW - Hanford Site KW - porous materials KW - Cs-137 KW - saturation KW - metals KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52065019?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Developments+in+Water+Science&rft.atitle=Multi-region+transport+and+competitive+ion+exchange+in+partially+saturated+porous+media&rft.au=Yabusaki%2C+S+B&rft.aulast=Yabusaki&rft.aufirst=S&rft.date=2002-01-01&rft.volume=47%2C+Vol.+1&rft.issue=&rft.spage=579&rft.isbn=0444509755&rft.btitle=&rft.title=Developments+in+Water+Science&rft.issn=01675648&rft_id=info:doi/ L2 - http://www.elsevier.com/wps/find/bookseriesdescription.cws_home/BS_DWS/description LA - English DB - GeoRef N1 - Conference title - XIVth international conference on Computational methods in water resources (CMWR XIV) N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 12 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alkali metals; Benton County Washington; cesium; Cs-137; Franklin County Washington; Grant County Washington; ground water; Hanford Site; ion exchange; isotopes; metals; mobility; pollutants; pollution; porous materials; radioactive isotopes; radioactive waste; saturation; sorption; tracers; transport; United States; unsaturated zone; Washington; waste disposal ER - TY - JOUR T1 - Formation of residual NAPL in three-phase systems; experiments and numerical simulations AN - 52064722; 2002-066921 JF - Developments in Water Science AU - Hofstee, C AU - Oostrom, M A2 - Hassanizadeh, S. Majid A2 - Schotting, Ruud J. A2 - Gray, William G. A2 - Pinder, George F. Y1 - 2002 PY - 2002 DA - 2002 SP - 193 EP - 200 PB - Elsevier, Amsterdam-Oxford-New York VL - 47, Vol. 1 SN - 0167-5648, 0167-5648 KW - numerical models KW - capillary pressure KW - pollutants KW - one-dimensional models KW - three-phase models KW - unsaturated zone KW - pollution KW - preferential flow KW - simulation KW - porosity KW - two-dimensional models KW - ground water KW - nonaqueous phase liquids KW - organic compounds KW - transport KW - pore water KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52064722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Developments+in+Water+Science&rft.atitle=Formation+of+residual+NAPL+in+three-phase+systems%3B+experiments+and+numerical+simulations&rft.au=Hofstee%2C+C%3BOostrom%2C+M&rft.aulast=Hofstee&rft.aufirst=C&rft.date=2002-01-01&rft.volume=47%2C+Vol.+1&rft.issue=&rft.spage=193&rft.isbn=0444509755&rft.btitle=&rft.title=Developments+in+Water+Science&rft.issn=01675648&rft_id=info:doi/ L2 - http://www.elsevier.com/wps/find/bookseriesdescription.cws_home/BS_DWS/description LA - English DB - GeoRef N1 - Conference title - XIVth international conference on Computational methods in water resources (CMWR XIV) N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 7 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - capillary pressure; ground water; nonaqueous phase liquids; numerical models; one-dimensional models; organic compounds; pollutants; pollution; pore water; porosity; preferential flow; simulation; three-phase models; transport; two-dimensional models; unsaturated zone ER - TY - JOUR T1 - The role of Na-montmorillonite in the evolution of copper, nickel, and vanadyl geoporphyrins during diagenesis AN - 52058832; 2002-071318 AB - Sorption of a series of toluene-solvated porphyrins with differing structural characteristics and metallic centers [i.e. free-base, Cu(II), Ni(II) and VO(II)] onto Na-montmorillonite was measured to determine how this clay mineral might influence porphyrin pathways during diagenesis. In most instances, adsorption was adequately described by the Langmuir isotherm equation. The adsorption results were compared in two ways: (1) by the metallating ion, where predicted trends of the relative degree of adsorption are based on Buchler stability indices, and (2) by the structural type, where predicted trends of the relative degree of adsorption are based on the number and type of substituent groups and their corresponding steric and functional characteristics. The implications of macrocycle shape (planar, ruffle, and wave) are also discussed. In general, sorption affinity based on metallating ion followed the order: VO(II) nearly equal Ni(II) or =66% saturation), decreases in U(VI) sorption were due to rate limitations. These breakthrough curves (BTCs) were well characterized with a two-site model for sorption (linear distribution coefficient Kd and first-order kinetic term); BTC characteristics were not captured with an equilibrium sorption model. At lower water contents (<30% saturation), two-region flow (mobile-immobile water) was apparent and had a significant impact on U(VI) sorption and transport. Uranium BTCs were characterized with two-region mass transfer parameters that were determined in experiments with conservative tracers. Decreases in uranium sorption at 22% and 13% saturation were greater than could be explained by velocity or rate-limited effects. Conservative tracer experiments indicated that solutes were excluded from a fraction of the pore volume; however, the decrease in uranium sorption was greater than predicted from this fraction. The results suggest that a greater propensity to sorb uranium was associated with sediment particles in contact with the excluded immobile water domain. Copyright 2001 by the American Geophysical Union. JF - Water Resources Research AU - Gamerdinger, A P AU - Kalpan, D I AU - Wellman, D M AU - Serne, R J Y1 - 2001/12// PY - 2001 DA - December 2001 SP - 3155 EP - 3162 PB - American Geophysical Union, Washington, DC VL - 37 IS - 12 SN - 0043-1397, 0043-1397 KW - United States KW - solute transport KW - sorption KW - isotopes KW - site exploration KW - unsaturated zone KW - environmental analysis KW - environmental effects KW - radioactive waste KW - ground water KW - radioactive isotopes KW - centrifuge methods KW - sediments KW - water content KW - sand KW - experimental studies KW - Washington KW - clastic sediments KW - Hanford Site KW - mathematical models KW - case studies KW - convection-dispersion equation KW - metals KW - uranium KW - waste disposal KW - actinides KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50154423?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Two-region+flow+and+decreased+sorption+of+uranium+%28VI%29+during+transport+in+Hanford+groundwater+and+unsaturated+sands&rft.au=Gamerdinger%2C+A+P%3BKalpan%2C+D+I%3BWellman%2C+D+M%3BSerne%2C+R+J&rft.aulast=Gamerdinger&rft.aufirst=A&rft.date=2001-12-01&rft.volume=37&rft.issue=12&rft.spage=3155&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2001WR000247 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - actinides; case studies; centrifuge methods; clastic sediments; convection-dispersion equation; environmental analysis; environmental effects; experimental studies; ground water; Hanford Site; isotopes; mathematical models; metals; radioactive isotopes; radioactive waste; sand; sediments; site exploration; solute transport; sorption; United States; unsaturated zone; uranium; Washington; waste disposal; water content DO - http://dx.doi.org/10.1029/2001WR000247 ER - TY - JOUR T1 - Two-region flow and rate-limited sorption of uranium (VI) during transport in an unsaturated silt loam AN - 50154120; 2002-053952 AB - Uranium (VI) sorption during unsaturated transport was evaluated using a centrifuge method; conventional saturated columns and batch incubation procedures were used to isolate flow effects on sorption processes. Uranium (VI) sorption was dependent on flow velocity, and modeling indicated that 60% of sorption was rate-limited. Breakthrough curves were described and independently predicted with a two-site model; the mass transfer coefficient for sorption was assumed to be linearly related to velocity. While two-region flow contributed to disparity in apparent K (sub d ) values (linear distribution coefficient) at different water contents, the effect was explained by increased velocity in the mobile flow domain and not a decrease in availability of sorption sites. Hydrodynamic parameters for two-region transport, determined for a nonsorptive tracer at faster velocity (16 cm h (super -1) ), were fixed and described U(VI) transport at slower velocity (2 cm h (super -1) ). The rate-limited parameter for mass transfer between mobile and immobile water domains was linearly related to the average pore water velocity. Effective retardation factors varied with moisture saturation and the apparent K (sub d ) value and ranged from 7 for faster velocity experiments in a saturated column to 44 at slow velocity and 40% moisture saturation. Copyright 2001 by the American Geophysical Union. JF - Water Resources Research AU - Gamerdinger, A P AU - Kaplan, D I AU - Wellman, D M AU - Serne, R J Y1 - 2001/12// PY - 2001 DA - December 2001 SP - 3147 EP - 3153 PB - American Geophysical Union, Washington, DC VL - 37 IS - 12 SN - 0043-1397, 0043-1397 KW - United States KW - solute transport KW - sorption KW - isotopes KW - site exploration KW - waste disposal sites KW - unsaturated zone KW - gravel KW - fluid dynamics KW - environmental effects KW - radioactive waste KW - radioactive isotopes KW - centrifuge methods KW - transport KW - sediments KW - valency KW - geochemistry KW - soils KW - sand KW - Washington KW - clastic sediments KW - Hanford Site KW - silt KW - rates KW - mathematical models KW - hydrochemistry KW - models KW - case studies KW - loam KW - saturation KW - metals KW - uranium KW - waste disposal KW - actinides KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50154120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Two-region+flow+and+rate-limited+sorption+of+uranium+%28VI%29+during+transport+in+an+unsaturated+silt+loam&rft.au=Gamerdinger%2C+A+P%3BKaplan%2C+D+I%3BWellman%2C+D+M%3BSerne%2C+R+J&rft.aulast=Gamerdinger&rft.aufirst=A&rft.date=2001-12-01&rft.volume=37&rft.issue=12&rft.spage=3147&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2001WR000244 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - actinides; case studies; centrifuge methods; clastic sediments; environmental effects; fluid dynamics; geochemistry; gravel; Hanford Site; hydrochemistry; isotopes; loam; mathematical models; metals; models; radioactive isotopes; radioactive waste; rates; sand; saturation; sediments; silt; site exploration; soils; solute transport; sorption; transport; United States; unsaturated zone; uranium; valency; Washington; waste disposal; waste disposal sites DO - http://dx.doi.org/10.1029/2001WR000244 ER - TY - JOUR T1 - Effect of porosity on the adsorption, desorption, trapping, and release of volatile gases by amorphous solid water AN - 50153433; 2003-045649 AB - We compare the adsorption, desorption, trapping, and release of Ar, N (sub 2) , O (sub 2) , CO, and CH (sub 4) by dense (nonporous) and highly porous amorphous solid water (ASW) films. Molecular beam deposition techniques are used to control the porosity of the vapor-deposited ASW thin films. Experiments where the gas species is deposited on top of and underneath dense and porous ASW are conducted. For the film thickness used in this study, the porous films are found to adsorb between 20 and 50 times more gas than the dense films. The desorption temperature of the adsorbed gas is also dependent on the porosity of the ASW film. Differences between desorption from porous and dense ASW films are attributed to differences in their ability to trap weakly physisorbed gases. The results are largely independent of the gas studied, confirming that the adsorption and trapping of gases are dominated by the ASW porosity. These findings show that laboratory studies must account for the growth conditions and their effects on ASW morphology in order to accurately predict the properties of astrophysical ices. Copyright 2001 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Ayotte, Patrick AU - Smith, R Scott AU - Stevenson, K P AU - Dohnalek, Z AU - Kimmel, Greg A AU - Kay, Bruce D AU - Domingue, Deborah AU - Allamandola, Louis Y1 - 2001/12// PY - 2001 DA - December 2001 SP - 33 EP - 33,392 PB - American Geophysical Union, Washington, DC VL - 106 IS - E12 SN - 0148-0227, 0148-0227 KW - desorption KW - electron diffraction data KW - aliphatic hydrocarbons KW - interplanetary space KW - ions KW - temperature KW - nitrogen KW - carbon dioxide KW - sputtering KW - laboratory studies KW - ice KW - Auger spectroscopy KW - spectra KW - satellites KW - chemical composition KW - water KW - experimental studies KW - methane KW - gaseous phase KW - amorphous materials KW - porous materials KW - alkanes KW - adsorption KW - porosity KW - gases KW - terrestrial planets KW - solid phase KW - molecular structure KW - planets KW - ice mixtures KW - volatiles KW - organic compounds KW - comets KW - traps KW - hydrocarbons KW - spectroscopy KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50153433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Effect+of+porosity+on+the+adsorption%2C+desorption%2C+trapping%2C+and+release+of+volatile+gases+by+amorphous+solid+water&rft.au=Ayotte%2C+Patrick%3BSmith%2C+R+Scott%3BStevenson%2C+K+P%3BDohnalek%2C+Z%3BKimmel%2C+Greg+A%3BKay%2C+Bruce+D%3BDomingue%2C+Deborah%3BAllamandola%2C+Louis&rft.aulast=Ayotte&rft.aufirst=Patrick&rft.date=2001-12-01&rft.volume=106&rft.issue=E12&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2000JE001362 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 43 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; aliphatic hydrocarbons; alkanes; amorphous materials; Auger spectroscopy; carbon dioxide; chemical composition; comets; desorption; electron diffraction data; experimental studies; gaseous phase; gases; hydrocarbons; ice; ice mixtures; interplanetary space; ions; laboratory studies; methane; molecular structure; nitrogen; organic compounds; planets; porosity; porous materials; satellites; solid phase; spectra; spectroscopy; sputtering; temperature; terrestrial planets; traps; volatiles; water DO - http://dx.doi.org/10.1029/2000JE001362 ER - TY - JOUR T1 - Long history of pre-Wisconsin, ice age cataclysmic floods; evidence from southeastern Washington State AN - 52145881; 2002-011013 AB - Cataclysmic Ice Age floods in the Pacific Northwest began as early as 1.5-2.5 Ma, on the basis of an evaluation of surface exposures and recent borehole studies within southeastern Washington. Field evidence suggests at least two episodes of pre-Wisconsin (i.e., >130 ka) glacial-outburst flooding. A Middle Pleistocene flood is identified by normal magnetic polarity, calcrete-capped deposits that yield maximum Th/U age dates from 200 to >400 ka. The deposits with reversed polarity are correlated to Early Pleistocene (>780 ka) floods. While exposures of pre-Wisconsin deposits are limited because of erosion and/or burial, the record of earlier Pleistocene flooding is preserved within giant flood bars. These bars show incremental growth, representing a composite from cataclysmic floods deposited intermittently through the Pleistocene. In one giant flood bar, up to 100 m thick, deposits interpreted as Matuyama age indicate that the bar had grown to half its present height by 780 ka. Furthermore, Matuyama-age, reversed-polarity flood deposits may be underlain by up to another 15 m of normally magnetized deposits at the base of the flood sequence. This normal-polarity interval appears to be associated with Early Pleistocene cataclysmic floods, perhaps of Olduvai age (>1.77 Ma). Many of the features associated with cataclysmic floods, such as coulees, giant bars, and streamlined loess hills, may have been established during the Early Pleistocene and were only slightly modified by up to hundreds of subsequent flood episodes. JF - Journal of Geology AU - Bjornstad, Bruce N AU - Fecht, Karl R AU - Pluhar, Christopher J Y1 - 2001/11// PY - 2001 DA - November 2001 SP - 695 EP - 713 PB - University of Chicago Press, Chicago, IL VL - 109 IS - 6 SN - 0022-1376, 0022-1376 KW - United States KW - erosion KW - middle Pleistocene KW - glaciofluvial environment KW - clastic dikes KW - Th/U KW - upper Pleistocene KW - soft sediment deformation KW - Cenozoic KW - sedimentary rocks KW - Yakima County Washington KW - dates KW - jokulhlaups KW - glacial environment KW - sediments KW - Pasco Basin KW - absolute age KW - paleosols KW - Matuyama Chron KW - paleofloods KW - Benton County Washington KW - calcrete KW - sedimentary structures KW - lower Pleistocene KW - Washington KW - upper Cenozoic KW - Quaternary KW - clastic sediments KW - water erosion KW - paleomagnetism KW - Olduvai Subchron KW - southeastern Washington KW - boreholes KW - reversals KW - Pleistocene KW - Channeled Scabland KW - carbonate rocks KW - fluvial environment KW - field studies KW - catastrophes KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52145881?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geology&rft.atitle=Long+history+of+pre-Wisconsin%2C+ice+age+cataclysmic+floods%3B+evidence+from+southeastern+Washington+State&rft.au=Bjornstad%2C+Bruce+N%3BFecht%2C+Karl+R%3BPluhar%2C+Christopher+J&rft.aulast=Bjornstad&rft.aufirst=Bruce&rft.date=2001-11-01&rft.volume=109&rft.issue=6&rft.spage=695&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geology&rft.issn=00221376&rft_id=info:doi/ L2 - http://www.jstor.org/journal/jgeology LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 48 N1 - PubXState - IL N1 - Document feature - illus. incl. sect., 3 tables, sketch maps N1 - Last updated - 2016-10-25 N1 - CODEN - JGEOAZ N1 - SubjectsTermNotLitGenreText - absolute age; Benton County Washington; boreholes; calcrete; carbonate rocks; catastrophes; Cenozoic; Channeled Scabland; clastic dikes; clastic sediments; dates; erosion; field studies; fluvial environment; glacial environment; glaciofluvial environment; jokulhlaups; lower Pleistocene; Matuyama Chron; middle Pleistocene; Olduvai Subchron; paleofloods; paleomagnetism; paleosols; Pasco Basin; Pleistocene; Quaternary; reversals; sedimentary rocks; sedimentary structures; sediments; soft sediment deformation; southeastern Washington; Th/U; United States; upper Cenozoic; upper Pleistocene; Washington; water erosion; Yakima County Washington ER - TY - JOUR T1 - Solution structure of Pyrobaculum aerophilum DsrC, an archaeal homologue of the gamma subunit of dissimilatory sulfite reductase AN - 18696746; 5580855 AB - The solution structure of DsrC, an archaeal homologue of the gamma subunit of dissimilatory sulfite reductase, has been determined by NMR spectroscopy. This 12.7-kDa protein from the hyperthermophilic archaeon Pyrobaculum aerophilum adopts a novel fold consisting of an orthogonal helical bundle with a beta hairpin along one side. A portion of the structure resembles the helix-turn-helix DNA-binding motif common in transcriptional regulator proteins. The protein contains two disulfide bonds but remains folded following reduction of the disulfides. DsrC proteins from organisms other than Pyrobaculum species do not contain these disulfide bonds. A conserved cysteine next to the C-terminus, which is not involved in the disulfide bonds, is located on a seven-residue C-terminal arm that is not part of the globular protein and is likely to dynamically sample more than one conformation. JF - European Journal of Biochemistry AU - Cort, J R AU - Mariappan, SVS AU - Kim, C-Y AU - Park, M-S AU - Peat, T S AU - Waldo, G S AU - Terwilliger, T C AU - Kennedy, MA AD - Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA 99352, USA, makennedy@pnl.gov Y1 - 2001/11// PY - 2001 DA - Nov 2001 SP - 5842 EP - 5850 VL - 268 IS - 22 SN - 0014-2956, 0014-2956 KW - DsrC protein KW - gamma subunit KW - dissimilatory sulfite reductase KW - homologs KW - hyperthermophilic archaea KW - solution structure KW - Microbiology Abstracts B: Bacteriology KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18696746?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=European+Journal+of+Biochemistry&rft.atitle=Solution+structure+of+Pyrobaculum+aerophilum+DsrC%2C+an+archaeal+homologue+of+the+gamma+subunit+of+dissimilatory+sulfite+reductase&rft.au=Cort%2C+J+R%3BMariappan%2C+SVS%3BKim%2C+C-Y%3BPark%2C+M-S%3BPeat%2C+T+S%3BWaldo%2C+G+S%3BTerwilliger%2C+T+C%3BKennedy%2C+MA&rft.aulast=Cort&rft.aufirst=J&rft.date=2001-11-01&rft.volume=268&rft.issue=22&rft.spage=5842&rft.isbn=&rft.btitle=&rft.title=European+Journal+of+Biochemistry&rft.issn=00142956&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Automated immunomagnetic separation and microarray detection of E. coli O157:H7 from poultry carcass rinse AN - 18375555; 5353884 AB - We describe the development and application of an electromagnetic flow cell and fluidics system for automated immunomagnetic separation (IMS) of Escherichia coli O157:H7 directly from poultry carcass rinse. We further describe the biochemical coupling of automated sample preparation with nucleic acid microarrays. Both the cell concentration system and microarray detection method did not require cell growth or enrichment from the poultry carcass rinse prior to IMS. Highly porous Ni foam was used to enhance the magnetic field gradient within the flow path, providing a mechanism for immobilizing immunomagnetic particles throughout the fluid rather than the tubing wall. A maximum of 32% recovery efficiency of non-pathogenic E. coli was achieved within the automated system with 6 s cell contact times using commercially available antibodies targeted against the O and K antigens. A 15-min protocol (from sample injection though elution) provided a cell recovery efficiency that was statistically similar to > 1 h batch captures. O157:H7 cells were reproducibly isolated directly from poultry carcass rinse with 39% recovery efficiency at 10 super(3) CFU ml super(-1) inoculum. Direct plating of washed beads showed positive recovery of O157:H7 directly from poultry carcass rinse at an inoculum of 10 CFU ml super(-1). Recovered beads were used for direct polymerase chain reaction (PCR) amplification and microarray detection, with a process-level detection limit (automated cell concentration though microarray detection) of < 10 super(3) CFU ml super(-1) in poultry carcass rinse. JF - International Journal of Food Microbiology AU - Chandler, D P AU - Brown, J AU - Call AU - Wunschel, S AU - Grate, J W AU - Holman, DA AU - Olson, L AU - Stottlemyre AU - Bruckner-Lea, C J AD - Analytical Microbiology Group, Pacific Northwest National Laboratory, Mail Stop P7-50, 900 Battelle Blvd., P.O. Box 999, Richland, WA 99352, USA, dp.chandler@pnl.gov Y1 - 2001/10/22/ PY - 2001 DA - 2001 Oct 22 SP - 143 EP - 154 VL - 70 IS - 1-2 SN - 0168-1605, 0168-1605 KW - DNA microarrays KW - detection KW - immunomagnetic separation KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - A 01116:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18375555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Food+Microbiology&rft.atitle=Automated+immunomagnetic+separation+and+microarray+detection+of+E.+coli+O157%3AH7+from+poultry+carcass+rinse&rft.au=Chandler%2C+D+P%3BBrown%2C+J%3BCall%3BWunschel%2C+S%3BGrate%2C+J+W%3BHolman%2C+DA%3BOlson%2C+L%3BStottlemyre%3BBruckner-Lea%2C+C+J&rft.aulast=Chandler&rft.aufirst=D&rft.date=2001-10-22&rft.volume=70&rft.issue=1-2&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Food+Microbiology&rft.issn=01681605&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Selective sorption of cesium using self-assembled monolayers on mesoporous supports. AN - 72213839; 11642461 AB - The synthesis of a novel nanocomposite sorbent material, copper ferrocyanide immobilized within a mesoporous ceramic matrix, and its use as a novel cesium sorbent material is reported in this paper. Complete removal of cesium was achieved in the presence of competing metal ions for solutions containing 2 ppm cesium under a variety conditions. Loading capacity of more than 1.35 mmol Cs per g of sorbent material has been achieved. The exceptionally fast binding kinetics and high loading capacity, resulting from the rigidly open pore structure and extremely high surface area of the sorbent materials, make them potentially very useful for the removal of cesium from nuclear wastes and contaminated groundwater. JF - Environmental science & technology AU - Lin, Y AU - Fryxell, G E AU - Wu, H AU - Engelhard, M AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2001/10/01/ PY - 2001 DA - 2001 Oct 01 SP - 3962 EP - 3966 VL - 35 IS - 19 SN - 0013-936X, 0013-936X KW - Coloring Agents KW - 0 KW - Ferrocyanides KW - Ions KW - Radioactive Waste KW - Soil Pollutants, Radioactive KW - Water Pollutants, Radioactive KW - Cesium KW - 1KSV9V4Y4I KW - cupric ferrocyanide KW - 871D97G82Z KW - Index Medicus KW - Ceramics KW - Kinetics KW - Ferrocyanides -- chemistry KW - Porosity KW - Adsorption KW - Coloring Agents -- chemistry KW - Environmental Pollution -- prevention & control KW - Cesium -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72213839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Selective+sorption+of+cesium+using+self-assembled+monolayers+on+mesoporous+supports.&rft.au=Lin%2C+Y%3BFryxell%2C+G+E%3BWu%2C+H%3BEngelhard%2C+M&rft.aulast=Lin&rft.aufirst=Y&rft.date=2001-10-01&rft.volume=35&rft.issue=19&rft.spage=3962&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-02-12 N1 - Date created - 2001-10-19 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Preliminary uncertainty analysis for the doses estimated using the Techa River dosimetry system--2000. AN - 71181297; 11569634 AB - The Mayak Production Association (MPA) was the first facility in the former Soviet Union for the production of plutonium. As a result of failures in the technological processes in the late 1940's and early 1950's, members of the public were exposed via discharge of about 10(17) Bq of liquid wastes into the Techa River (1949-1956). Residents of many villages downstream on the Techa River were exposed via a variety of pathways; the more significant included drinking of water from the river and external gamma exposure due to proximity to sediments and shoreline. The specific aim of this project is to enhance the reconstruction of external and internal radiation doses for individuals in the Extended Techa River Cohort. The purpose of this paper is to present the approaches being used to evaluate the uncertainty in the calculated individual doses and to provide example and representative results of the uncertainty analyses. The magnitude of the uncertainties varies depending on location and time of individual exposure, but the results from reference-individual calculations indicate that for external doses, the range of uncertainty is about a factor of four to five. For internal doses, the range of uncertainty depends on village of residence, which is actually a surrogate for source of drinking water. For villages with single sources of drinking water (river or well), the ratio of the 97.5th percentile-to 2.5th percentile estimates can be a factor of 20 to 30. For villages with mixed sources of drinking water (river and well), the ratio of the range can be over two orders of magnitude. JF - Health physics AU - Napier, B A AU - Shagina, N B AU - Degteva, M O AU - Tolstykh, E I AU - Vorobiova, M I AU - Anspaugh, L R AD - Pacific Northwest National Laboratory, Richland, WA 99352-0999, USA. Bruce.Napier@PNL.gov Y1 - 2001/10// PY - 2001 DA - October 2001 SP - 395 EP - 405 VL - 81 IS - 4 SN - 0017-9078, 0017-9078 KW - Water Pollutants, Radioactive KW - 0 KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - Waste Disposal, Fluid KW - Fresh Water KW - Databases, Factual KW - Radiometry -- methods KW - Geography KW - USSR KW - Models, Theoretical KW - Radiation Monitoring -- methods KW - Water Pollutants, Radioactive -- analysis KW - Plutonium -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71181297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Preliminary+uncertainty+analysis+for+the+doses+estimated+using+the+Techa+River+dosimetry+system--2000.&rft.au=Napier%2C+B+A%3BShagina%2C+N+B%3BDegteva%2C+M+O%3BTolstykh%2C+E+I%3BVorobiova%2C+M+I%3BAnspaugh%2C+L+R&rft.aulast=Napier&rft.aufirst=B&rft.date=2001-10-01&rft.volume=81&rft.issue=4&rft.spage=395&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-10-11 N1 - Date created - 2001-09-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Coprecipitation of uranium(VI) with calcite; XAFS, micro-XAS, and luminescence characterization AN - 52160618; 2002-002139 AB - X-ray absorption and luminescence spectroscopies have been used to characterize the local structure and coordination of uranium(VI) species coprecipitated with calcite (CaCO (sub 3) ) from room-temperature aqueous solutions. Different solution chemistries and pHs are found to result in differences in the equatorial coordination of the uranyl species (UO (sub 2) (super 2+) ) incorporated in the calcite, with multiple coordination environments of uranyl evident in one sample. Differences in the equatorial coordination between the aqueous uranyl species and those found in the calcite indicate that coordination changes occur during incorporation of at least some species. This contrasts with previous findings showing no change in equatorial coordination during uranyl incorporation into aragonite, and may explain the greater incorporation in this latter phase. The absence of calcium backscatterers and well defined structure beyond the equatorial shell is consistent with disorder associated with disruption of the local calcite structure. This may indicate an inability of the uranyl unit to assume a stable structural environment in the host calcite, which could decrease the stability of uranyl-containing calcite. Calcite single crystals grown in uranyl-containing solutions exhibit polygonized spiral growth hillocks on (1014) surfaces composed of four vicinal surfaces, consistent with face symmetry. Micro-X-ray fluorescence reveals that uranium is differentially incorporated between nonequivalent vicinal surfaces, reflecting step-selective incorporation of uranyl species during growth. Micro-X-ray absorption near-edge structure spectra from the nonequivalent vicinal faces fail to reveal any differences in speciation between the vicinals or that might account for the presence of the multiple coordination environments identified by luminescence and X-ray absorption spectroscopies. JF - Geochimica et Cosmochimica Acta AU - Reeder, Richard J AU - Nugent, Melissa AU - Tait, C Drew AU - Morris, David E AU - Heald, Steve M AU - Beck, Kenneth M AU - Hess, Wayne P AU - Lanzirotti, Anthony Y1 - 2001/10// PY - 2001 DA - October 2001 SP - 3491 EP - 3503 PB - Pergamon, Oxford VL - 65 IS - 20 SN - 0016-7037, 0016-7037 KW - experimental studies KW - coordination KW - XAFS spectra KW - uranyl ion KW - crystal growth KW - aqueous solutions KW - X-ray spectra KW - calcite KW - XANES spectra KW - luminescence KW - laboratory studies KW - optical properties KW - single-crystal method KW - nucleation KW - precipitation KW - metals KW - X-ray fluorescence spectra KW - uranium KW - spectra KW - geochemistry KW - carbonates KW - actinides KW - pH KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52160618?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Coprecipitation+of+uranium%28VI%29+with+calcite%3B+XAFS%2C+micro-XAS%2C+and+luminescence+characterization&rft.au=Reeder%2C+Richard+J%3BNugent%2C+Melissa%3BTait%2C+C+Drew%3BMorris%2C+David+E%3BHeald%2C+Steve+M%3BBeck%2C+Kenneth+M%3BHess%2C+Wayne+P%3BLanzirotti%2C+Anthony&rft.aulast=Reeder&rft.aufirst=Richard&rft.date=2001-10-01&rft.volume=65&rft.issue=20&rft.spage=3491&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2801%2900647-0 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2002-01-01 N1 - Number of references - 54 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aqueous solutions; calcite; carbonates; coordination; crystal growth; experimental studies; geochemistry; laboratory studies; luminescence; metals; nucleation; optical properties; pH; precipitation; single-crystal method; spectra; uranium; uranyl ion; X-ray fluorescence spectra; X-ray spectra; XAFS spectra; XANES spectra DO - http://dx.doi.org/10.1016/S0016-7037(01)00647-0 ER - TY - JOUR T1 - Monitoring and verifying changes of organic carbon in soil AN - 51709324; 2005-045230 JF - Climatic Change AU - Post, W M AU - Izaurralde, Roberto Cesar AU - Mann, L K AU - Bliss, N A2 - Rosenberg, Norman J. A2 - Izaurralde, Roberto Cesar Y1 - 2001/10// PY - 2001 DA - October 2001 SP - 73 EP - 99 PB - Springer, Dordrecht VL - 51 IS - 1 SN - 0165-0009, 0165-0009 KW - United States KW - soils KW - monitoring KW - sequestration KW - agriculture KW - ecosystems KW - vegetation KW - measurement KW - geochemical cycle KW - environmental management KW - planning KW - conservation KW - regional KW - carbon KW - carbon cycle KW - organic carbon KW - land use KW - storage KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51709324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Monitoring+and+verifying+changes+of+organic+carbon+in+soil&rft.au=Post%2C+W+M%3BIzaurralde%2C+Roberto+Cesar%3BMann%2C+L+K%3BBliss%2C+N&rft.aulast=Post&rft.aufirst=W&rft.date=2001-10-01&rft.volume=51&rft.issue=1&rft.spage=73&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 85 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - agriculture; carbon; carbon cycle; conservation; ecosystems; environmental management; geochemical cycle; land use; measurement; monitoring; organic carbon; planning; regional; sequestration; soils; storage; United States; vegetation ER - TY - JOUR T1 - Storing carbon in agricultural soils; a multi-purpose environmental strategy AN - 51707911; 2005-045227 JF - Climatic Change A2 - Rosenberg, Norman J. A2 - Izaurralde, Roberto Cesar Y1 - 2001/10// PY - 2001 DA - October 2001 SP - 1 EP - 117 PB - Springer, Dordrecht VL - 51 IS - 1 SN - 0165-0009, 0165-0009 KW - soils KW - technology KW - sequestration KW - agriculture KW - techniques KW - global change KW - climate change KW - controls KW - conservation KW - carbon KW - storage KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51707911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2001-10-01&rft.volume=&rft.issue=&rft.spage=1&rft.isbn=&rft.btitle=Storing+carbon+in+agricultural+soils%3B+a+multi-purpose+environmental+strategy&rft.title=Storing+carbon+in+agricultural+soils%3B+a+multi-purpose+environmental+strategy&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - agriculture; carbon; climate change; conservation; controls; global change; global warming; sequestration; soils; storage; techniques; technology ER - TY - JOUR T1 - Potential of desertification control to sequester carbon and mitigate the greenhouse effect AN - 51707620; 2005-045229 JF - Climatic Change AU - Lal, R A2 - Rosenberg, Norman J. A2 - Izaurralde, Roberto Cesar Y1 - 2001/10// PY - 2001 DA - October 2001 SP - 35 EP - 72 PB - Springer, Dordrecht VL - 51 IS - 1 SN - 0165-0009, 0165-0009 KW - soils KW - terrestrial environment KW - sequestration KW - human activity KW - arid environment KW - global KW - agriculture KW - ecosystems KW - desertification KW - environmental effects KW - bibliography KW - geochemical cycle KW - carbon dioxide KW - environmental management KW - controls KW - mitigation KW - conservation KW - carbon KW - greenhouse effect KW - carbon cycle KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51707620?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Potential+of+desertification+control+to+sequester+carbon+and+mitigate+the+greenhouse+effect&rft.au=Lal%2C+R&rft.aulast=Lal&rft.aufirst=R&rft.date=2001-10-01&rft.volume=51&rft.issue=1&rft.spage=35&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 196 N1 - Document feature - 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - agriculture; arid environment; bibliography; carbon; carbon cycle; carbon dioxide; conservation; controls; desertification; ecosystems; environmental effects; environmental management; geochemical cycle; global; greenhouse effect; human activity; mitigation; sequestration; soils; terrestrial environment ER - TY - JOUR T1 - Science needs and new technology for increasing soil carbon sequestration AN - 51707190; 2005-045228 JF - Climatic Change AU - Metting, F Blaine AU - Smith, Jeffrey L AU - Amthor, Jeffrey S AU - Izaurralde, Roberto Cesar A2 - Rosenberg, Norman J. A2 - Izaurralde, Roberto Cesar Y1 - 2001/10// PY - 2001 DA - October 2001 SP - 11 EP - 34 PB - Springer, Dordrecht VL - 51 IS - 1 SN - 0165-0009, 0165-0009 KW - soils KW - technology KW - sequestration KW - human activity KW - global KW - techniques KW - ecosystems KW - climate change KW - environmental management KW - conservation KW - carbon KW - ecology KW - land use KW - energy KW - storage KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51707190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Science+needs+and+new+technology+for+increasing+soil+carbon+sequestration&rft.au=Metting%2C+F+Blaine%3BSmith%2C+Jeffrey+L%3BAmthor%2C+Jeffrey+S%3BIzaurralde%2C+Roberto+Cesar&rft.aulast=Metting&rft.aufirst=F&rft.date=2001-10-01&rft.volume=51&rft.issue=1&rft.spage=11&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 59 N1 - Document feature - 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - carbon; climate change; conservation; ecology; ecosystems; energy; environmental management; global; human activity; land use; sequestration; soils; storage; techniques; technology ER - TY - JOUR T1 - Soil carbon; policy and economics AN - 51706642; 2005-045231 JF - Climatic Change AU - Marland, Gregg AU - McCarl, Bruce A AU - Schneider, Uwe A2 - Rosenberg, Norman J. A2 - Izaurralde, Roberto Cesar Y1 - 2001/10// PY - 2001 DA - October 2001 SP - 101 EP - 117 PB - Springer, Dordrecht VL - 51 IS - 1 SN - 0165-0009, 0165-0009 KW - soils KW - monitoring KW - sequestration KW - global KW - agriculture KW - cost KW - climate change KW - geochemical cycle KW - conservation KW - carbon cycle KW - land use KW - soil management KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51706642?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Soil+carbon%3B+policy+and+economics&rft.au=Marland%2C+Gregg%3BMcCarl%2C+Bruce+A%3BSchneider%2C+Uwe&rft.aulast=Marland&rft.aufirst=Gregg&rft.date=2001-10-01&rft.volume=51&rft.issue=1&rft.spage=101&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ L2 - http://www.springerlink.com/(hc4pmh453vbxpeaygjkevi45)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100247,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - Number of references - 30 N1 - Last updated - 2012-06-07 N1 - CODEN - CLCHDX N1 - SubjectsTermNotLitGenreText - agriculture; carbon cycle; climate change; conservation; cost; geochemical cycle; global; land use; monitoring; sequestration; soil management; soils ER - TY - JOUR T1 - Rapid Arsenite Oxidation by Thermus aquaticus and Thermus thermophilus: Field and Laboratory Investigations AN - 19927066; 5241124 AB - Thermus aquaticus and Thermus thermophilus, common inhabitants of terrestrial hot springs and thermally polluted domestic and industrial waters, have been found to rapidly oxidize arsenite to arsenate. Field investigations at a hot spring in Yellowstone National Park revealed conserved total arsenic transport and rapid arsenite oxidation occurring within the drainage channel. This environment was heavily colonized by Thermus aquaticus. In laboratory experiments, arsenite oxidation by cultures of Thermus aquaticus YT1 (previously isolated from Yellowstone National Park) and Thermus thermophilus HB8 was accelerated by a factor of over 100 relative to abiotic controls. Thermus aquaticus and Thermus thermophilus may therefore play a large and previously unrecognized role in determining arsenic speciation and bioavailability in thermal environments. JF - Environmental Science & Technology AU - Gihring, T M AU - Druschel, G K AU - Mccleskey, R B AU - Hamers, R J AU - Banfield, J F AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, MS P7-50, Richland, WA 99352, USA, thomas.gihring@pnl.gov Y1 - 2001/10/01/ PY - 2001 DA - 2001 Oct 01 SP - 3857 EP - 3862 VL - 35 IS - 19 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts B: Bacteriology; Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Aqualine Abstracts; Water Resources Abstracts KW - Arsenic KW - Hot springs KW - Thermus aquaticus KW - Industrial waste waters KW - USA, Yellowstone Natl. Park KW - AQ 00007:Industrial Effluents KW - P 2000:FRESHWATER POLLUTION KW - A 01016:Microbial degradation KW - SW 3030:Effects of pollution KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19927066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Rapid+Arsenite+Oxidation+by+Thermus+aquaticus+and+Thermus+thermophilus%3A+Field+and+Laboratory+Investigations&rft.au=Gihring%2C+T+M%3BDruschel%2C+G+K%3BMccleskey%2C+R+B%3BHamers%2C+R+J%3BBanfield%2C+J+F&rft.aulast=Gihring&rft.aufirst=T&rft.date=2001-10-01&rft.volume=35&rft.issue=19&rft.spage=3857&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-05-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - Hot springs; Industrial waste waters; Arsenic; Thermus aquaticus; USA, Yellowstone Natl. Park ER - TY - JOUR T1 - Direct Detection of 16S rRNA in Soil Extracts by Using Oligonucleotide Microarrays AN - 18340715; 5217940 AB - We report on the development and validation of a simple microarray method for the direct detection of intact 16S rRNA from unpurified soil extracts. Total RNAs from Geobacter chapellei and Desulfovibrio desulfuricans were hybridized to an oligonucleotide array consisting of universal and species-specific 16S rRNA probes. PCR-amplified products from Geobacter and Desulfovibrio were easily and specifically detected under a range of hybridization times, temperatures, and buffers. However, reproducible, specific hybridization and detection of intact rRNA could be accomplished only by using a chaperone-detector probe strategy. With this knowledge, assay conditions were developed for rRNA detection using a 2-h hybridization time at room temperature. Hybridization specificity and signal intensity were enhanced using fragmented RNA. Formamide was required in the hybridization buffer in order to achieve species-specific detection of intact rRNA. With the chaperone detection strategy, we were able to specifically hybridize and detect G. chapellei 16S rRNA directly from a total-RNA soil extract, without further purification or removal of soluble soil constituents. The detection sensitivity for G. chapellei 16S rRNA in soil extracts was at least 0.5 mu g of total RNA, representing approximately 7.5 x 10 Geobacter cell equivalents of RNA. These results suggest that it is now possible to apply microarray technology to the direct detection of microorganisms in environmental samples, without using PCR. JF - Applied and Environmental Microbiology AU - Small, J AU - Call AU - Brockman, F J AU - Straub, T M AU - Chandler, D P AD - Analytical Microbiology, Pacific Northwest National Laboratory, 900 Battelle Blvd., Mail Stop P7-50, Richland, WA 99352., dp.chandler@pnl.gov Y1 - 2001/10// PY - 2001 DA - Oct 2001 SP - 4708 EP - 4716 VL - 67 IS - 10 SN - 0099-2240, 0099-2240 KW - detection KW - DNA microarrays KW - oligonucleotides KW - rRNA 16S KW - Biotechnology and Bioengineering Abstracts; Agricultural and Environmental Biotechnology Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Temperature effects KW - Geobacter KW - Desulfovibrio desulfuricans KW - Methodology KW - Soil KW - rRNA KW - DNA fingerprinting KW - Buffers KW - Desulfovibrio KW - Polymerase chain reaction KW - Soil isolates KW - N 14610:Occurrence, isolation & assay KW - A 01113:General KW - W 30965:Miscellaneous, Reviews KW - W2 32243:Molecular methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18340715?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Direct+Detection+of+16S+rRNA+in+Soil+Extracts+by+Using+Oligonucleotide+Microarrays&rft.au=Small%2C+J%3BCall%3BBrockman%2C+F+J%3BStraub%2C+T+M%3BChandler%2C+D+P&rft.aulast=Small&rft.aufirst=J&rft.date=2001-10-01&rft.volume=67&rft.issue=10&rft.spage=4708&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.67.10.4708-4716.2001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Geobacter; Desulfovibrio; Desulfovibrio desulfuricans; DNA fingerprinting; Methodology; rRNA 16S; Soil isolates; rRNA; Soil; Polymerase chain reaction; Buffers; Temperature effects DO - http://dx.doi.org/10.1128/AEM.67.10.4708-4716.2001 ER - TY - JOUR T1 - Storing Carbon in Agricultural Soils to Help Head-Off a Global Warming AN - 18181017; 5169946 JF - Climatic Change AU - Rosenberg, N J AU - Izaurralde, R C AD - Battelle/Pacific Northwest National Laboratory, 901 D St., SW, Washington, D.C. 20024, U.S.A. Y1 - 2001/10// PY - 2001 DA - Oct 2001 SP - 1 EP - 10 PB - Kluwer Academic Publishers VL - 51 IS - 1 SN - 0165-0009, 0165-0009 KW - Carbon storage KW - Ecology Abstracts; Meteorological & Geoastrophysical Abstracts KW - Soil KW - Agricultural ecosystems KW - Carbon in soil KW - Global warming KW - Carbon emissions from soil KW - M2 551.583:Variations (551.583) KW - D 04600:Soil KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) KW - M2 551.524:Air Temperature (551.524) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18181017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climatic+Change&rft.atitle=Storing+Carbon+in+Agricultural+Soils+to+Help+Head-Off+a+Global+Warming&rft.au=Rosenberg%2C+N+J%3BIzaurralde%2C+R+C&rft.aulast=Rosenberg&rft.aufirst=N&rft.date=2001-10-01&rft.volume=51&rft.issue=1&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Climatic+Change&rft.issn=01650009&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Global warming; Soil; Agricultural ecosystems; Carbon in soil; Carbon emissions from soil ER - TY - JOUR T1 - Artificial aging of phenanthrene in porous silicas using supercritical carbon dioxide. AN - 72388000; 11783649 AB - Expedited artificial aging is described and demonstrated using a novel system that circulates a solution of supercritical carbon dioxide and a hydrophobic organic sorbate (phenanthrene) through a closed loop containing a porous substrate. Unlike traditional methods used to simulate the natural aging process, our approach allows for real-time monitoring of sorption equilibria, and the process is highly accelerated due to the unique physical properties of supercritcal carbon dioxide. The effectiveness of the system to simulate aging was demonstrated with a series of experiments in which three silicas with varying particle and pore sizes were loaded with phenanthrene. Batch aqueous desorption experiments were used to evaluate the extent of the aging process. For the two types of particles containing the largest pores (i.e., mean diameters of 202 and 66 A), 95% and 86%, respectively, of the phenanthrene was released to the aqueous fraction within 3 h. In contrast, only 16% of the phenanthrene was released from particles having a mean pore diameter of 21 A after 24 h. These results were confirmed by the results from an aqueous column desorption experiment. Confounding factors that might contribute to slow aqueous desorption such as the hydration state of the particles' surfaces, the chemical form of the loaded phenanthrene, and the organic carbon content were investigated and/or normalized for all three particle types. Consequently, we were able to attribute the slow desorption behavior and the presence of the resistant fraction in the 21 A silica to pore effects. With properly designed experiments, the results of this study suggest that the supercritical fluid system could be extended to the study of contaminant aging and bioavailability in natural soils and sediments. JF - Environmental science & technology AU - Riley, R G AU - Thompson, C J AU - Huesemann, M H AU - Wang, Z AU - Peyton, B AU - Fortman, T AU - Truex, M J AU - Parker, K E AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. robert.riley@pnl.gov Y1 - 2001/09/15/ PY - 2001 DA - 2001 Sep 15 SP - 3707 EP - 3712 VL - 35 IS - 18 SN - 0013-936X, 0013-936X KW - Phenanthrenes KW - 0 KW - Water KW - 059QF0KO0R KW - Carbon Dioxide KW - 142M471B3J KW - phenanthrene KW - 448J8E5BST KW - Silicon Dioxide KW - 7631-86-9 KW - Index Medicus KW - Environmental Monitoring KW - Particle Size KW - Water -- chemistry KW - Temperature KW - Adsorption KW - Models, Chemical KW - Time Factors KW - Carbon Dioxide -- chemistry KW - Phenanthrenes -- chemistry KW - Silicon Dioxide -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/72388000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Artificial+aging+of+phenanthrene+in+porous+silicas+using+supercritical+carbon+dioxide.&rft.au=Riley%2C+R+G%3BThompson%2C+C+J%3BHuesemann%2C+M+H%3BWang%2C+Z%3BPeyton%2C+B%3BFortman%2C+T%3BTruex%2C+M+J%3BParker%2C+K+E&rft.aulast=Riley&rft.aufirst=R&rft.date=2001-09-15&rft.volume=35&rft.issue=18&rft.spage=3707&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-01-23 N1 - Date created - 2002-01-09 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Application of intrawell testing of RCRA groundwater monitoring data when no upgradient well exists AN - 16129522; 5222074 AB - A statistical quality control approach to detect changes in groundwater quality from a regulated waste unit is described. The approach applies the combined Shewhart-CUSUM control chart methodology for intrawell comparison of analyte concentrations over time and does not require an upgradient well. A case study from the U.S. Department of Energy's Hanford Site is used for illustration purposes. This method is broadly applicable in groundwater monitoring programs where there is no clearly defined upgradient location, the groundwater flow rate is exceptionally slow, or where a high degree of spatial variability exists in parameter concentrations. This study also indicates that the use of the Data Quality Objectives (DQO) process can assist in designing an efficient and cost-effective groundwater monitoring plan to achieve the optimum goal of both low false positive and low false negative rates (high power). JF - Environmental Monitoring and Assessment AU - Chou, C J AU - O'Brien, R F AU - Barnett, D B AD - Pacific Northwest National Laboratory, Richland, WA, USA Y1 - 2001/09/02/ PY - 2001 DA - 2001 Sep 02 SP - 91 EP - 106 VL - 71 IS - 1 SN - 0167-6369, 0167-6369 KW - USA, Washington KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts KW - Pollution monitoring KW - Statistical analysis KW - Water resources KW - USA, Hanford Site KW - Freshwater KW - Wells (see also Boreholes) KW - Restoration KW - Comparative studies KW - Monitoring methods KW - Statistical Analysis KW - Groundwater Data KW - Quality Control KW - Case Studies KW - Water Quality KW - Network Design KW - USA, Washington, Hanford Site KW - Water supply KW - Pollution (Groundwater) KW - Water quality control KW - Comparison Studies KW - Quality control KW - Groundwater pollution KW - Groundwater KW - Monitoring KW - Water quality (Natural waters) KW - RCRA KW - SW 5010:Network design KW - P 2000:FRESHWATER POLLUTION KW - SW 0840:Groundwater KW - Q5 08502:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16129522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Monitoring+and+Assessment&rft.atitle=Application+of+intrawell+testing+of+RCRA+groundwater+monitoring+data+when+no+upgradient+well+exists&rft.au=Chou%2C+C+J%3BO%27Brien%2C+R+F%3BBarnett%2C+D+B&rft.aulast=Chou&rft.aufirst=C&rft.date=2001-09-02&rft.volume=71&rft.issue=1&rft.spage=91&rft.isbn=&rft.btitle=&rft.title=Environmental+Monitoring+and+Assessment&rft.issn=01676369&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-09-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Water quality control; Pollution monitoring; Statistical analysis; Water resources; Groundwater pollution; Water supply; Restoration; Monitoring methods; Quality control; RCRA; Pollution (Groundwater); Comparative studies; Monitoring; Water quality (Natural waters); Wells (see also Boreholes); Comparison Studies; Case Studies; Statistical Analysis; Water Quality; Groundwater Data; Network Design; Groundwater; Quality Control; USA, Hanford Site; USA, Washington, Hanford Site; Freshwater ER - TY - JOUR T1 - Distribution and retention of 137Cs in sediments at the Hanford Site, Washington. AN - 71178177; 11563643 AB - 137Cesium and other contaminants have leaked from single-shell storage tanks (SSTs) into coarse-textured, relatively unweathered unconsolidated sediments. Contaminated sediments were retrieved from beneath a leaky SST to investigate the distribution of adsorbed 137Cs+ across different sediment size fractions. All fractions contained mica (biotite, muscovite, vermiculatized biotite), quartz, and plagioclase along with smectite and kaolinite in the clay-size fraction. A phosphor-plate autoradiograph method was used to identify particular sediment particles responsible for retaining 137Cs+. The Cs-bearing particles were found to be individual mica flakes or agglomerated smectite, mica, quartz, and plagioclase. Of these, only the micaceous component was capable of sorbing Cs+ strongly. Sorbed 137Cs+ could not be significantly removed from sediments by leaching with dithionite citrate buffer or KOH, but a fraction of the sorbed 137Cs+ (5-22%) was desorbable with solutions containing an excess of Rb+. The small amount of 137Cs+ that might be mobilized by migrating fluids in the future would likely sorb to nearby micaceous clasts in downgradient sediments. JF - Environmental science & technology AU - McKinley, J P AU - Zeissler, C J AU - Zachara, J M AU - Serne, R J AU - Lindstrom, R M AU - Schaef, H T AU - Orr, R D AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. james.mckinley@pnl.gov Y1 - 2001/09/01/ PY - 2001 DA - 2001 Sep 01 SP - 3433 EP - 3441 VL - 35 IS - 17 SN - 0013-936X, 0013-936X KW - Aluminum Silicates KW - 0 KW - Cesium Radioisotopes KW - Gastrointestinal Agents KW - Hazardous Waste KW - Silicates KW - Soil KW - Soil Pollutants, Radioactive KW - clay KW - 1302-87-0 KW - Kaolin KW - 24H4NWX5CO KW - Smectite KW - A3N5ZCN45C KW - Index Medicus KW - Environmental Monitoring KW - Cesium Radioisotopes -- analysis KW - Washington KW - Adsorption KW - Kaolin -- chemistry KW - Gastrointestinal Agents -- chemistry KW - Geologic Sediments KW - Soil Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71178177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Distribution+and+retention+of+137Cs+in+sediments+at+the+Hanford+Site%2C+Washington.&rft.au=McKinley%2C+J+P%3BZeissler%2C+C+J%3BZachara%2C+J+M%3BSerne%2C+R+J%3BLindstrom%2C+R+M%3BSchaef%2C+H+T%3BOrr%2C+R+D&rft.aulast=McKinley&rft.aufirst=J&rft.date=2001-09-01&rft.volume=35&rft.issue=17&rft.spage=3433&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-01-23 N1 - Date created - 2001-09-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Dissimilatory bacterial reduction of Al-substituted goethite in subsurface sediments AN - 52187240; 2001-069453 AB - The microbiologic reduction of a 0.2 to 2.0 mu m size fraction of an Atlantic coastal plain sediment (Eatontown) was investigated using a dissimilatory Fe(III)-reducing bacterium (Shewanella putrefaciens, strain CN32) to evaluate mineralogic controls on the rate and extent of Fe(III) reduction and the resulting distribution of biogenic Fe(II). Mossbauer spectroscopy and X-ray diffraction (XRD) were used to show that the sedimentary Fe(III) oxide was Al-substituted goethite (13-17% Al) that existed as 1- to 5-mu m aggregates of indistinct morphology. Bioreduction experiments were performed in two buffers [HCO (sub 3) (super -) ; 1,4-piperazinediethansulfonic acid (PIPES)] both without and with 2,6-anthraquinone disulfonate (AQDS) as an electron shuttle. The production of biogenic Fe(II) and the distribution of Al (aqueous and sorbed) were followed over time, as was the formation of Fe(II) biominerals and physical/chemical changes to the goethite. The extent of reduction was comparable in both buffers. The reducibility (rate and extent) was enhanced by AQDS; 9% of dithionite-citrate-bicarbonate (DCB) extractable Fe(III) was reduced without AQDS whereas 15% was reduced in the presence of AQDS. XRD and Mossbauer spectroscopy were used to monitor the disposition of biogenic Fe(II) and changes to the Al-goethite. Fe(II) biomineralization was not evident by XRD. Biomineralization was observed by Mossbauer when sorbed Fe(II) concentrations exceeded a threshold value. The biomineralization products displayed Mossbauer spectra consistent with siderite FeCO (sub 3) (HCO (sub 3) (super -) buffer only) and green rust [Fe (sub (6-x)) (super II) Fe (sub x) (super III) (OH) (sub 12) ] (super x+) [(A (super 2-) ) (sub x/2) .yH (sub 2) O] (super x-) . Adsorption of biogenic Fe(II) to accessory mineral phases (e.g., kaolinite) and bacterial surfaces appeared to limit biomineralization. Al evolved during reduction was sorbed, and extractable Al increased with reduction. XRD analysis indicated that neither crystallite size or the Al content of the goethite was affected by bacterial reduction, i.e., Al release was congruent with Fe(II). JF - Geochimica et Cosmochimica Acta AU - Kukkadapu, Ravi K AU - Zachara, John M AU - Smith, Steven C AU - Fredrickson, James K AU - Liu, Chongxuan Y1 - 2001/09// PY - 2001 DA - September 2001 SP - 2913 EP - 2924 PB - Pergamon, Oxford VL - 65 IS - 17 SN - 0016-7037, 0016-7037 KW - United States KW - goethite KW - X-ray diffraction data KW - natural materials KW - substitution KW - Shewanella putrefaciens KW - iron KW - Cenozoic KW - ferric iron KW - aluminum KW - sediments KW - oxides KW - spectra KW - reduction KW - geochemistry KW - Mossbauer spectra KW - Atlantic Coastal Plain KW - biomineralization KW - experimental studies KW - Quaternary KW - Eatontown New Jersey KW - ferrous iron KW - sample preparation KW - biogenic processes KW - reagents KW - Monmouth County New Jersey KW - metals KW - bacteria KW - Pleistocene KW - New Jersey KW - SEM data KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52187240?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Dissimilatory+bacterial+reduction+of+Al-substituted+goethite+in+subsurface+sediments&rft.au=Kukkadapu%2C+Ravi+K%3BZachara%2C+John+M%3BSmith%2C+Steven+C%3BFredrickson%2C+James+K%3BLiu%2C+Chongxuan&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2001-09-01&rft.volume=65&rft.issue=17&rft.spage=2913&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2801%2900656-1 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 52 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aluminum; Atlantic Coastal Plain; bacteria; biogenic processes; biomineralization; Cenozoic; Eatontown New Jersey; experimental studies; ferric iron; ferrous iron; geochemistry; goethite; iron; metals; Monmouth County New Jersey; Mossbauer spectra; natural materials; New Jersey; oxides; Pleistocene; Quaternary; reagents; reduction; sample preparation; sediments; SEM data; Shewanella putrefaciens; spectra; substitution; United States; X-ray diffraction data DO - http://dx.doi.org/10.1016/S0016-7037(01)00656-1 ER - TY - RPRT T1 - Groundwater and vadose zone monitoring AN - 52099018; 2002-048777 JF - Hanford site environmental report for calendar year 2000; including some historical and early 2001 information AU - Horton, D G AU - Newcomer, D R A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2001/09// PY - 2001 DA - September 2001 VL - PNNL-13487 KW - water use KW - United States KW - aquifer vulnerability KW - water quality KW - Washington KW - monitoring KW - pollutants KW - unsaturated zone KW - pollution KW - Hanford Site KW - environmental analysis KW - drinking water KW - remediation KW - radioactive waste KW - ground water KW - aquifers KW - liquid waste KW - Columbia River basin KW - springs KW - waste disposal KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52099018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=Horton%2C+D+G%3BNewcomer%2C+D+R&rft.aulast=Horton&rft.aufirst=D&rft.date=2001-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Groundwater+and+vadose+zone+monitoring&rft.title=Groundwater+and+vadose+zone+monitoring&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Availability - U. S. Geological Survey, Library, Reston, VA, United States N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Quality assurance AN - 52098174; 2002-048779 JF - Hanford site environmental report for calendar year 2000; including some historical and early 2001 information AU - Gillespie, B M AU - Diediker, L P AU - Dyekman, D L A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2001/09// PY - 2001 DA - September 2001 VL - PNNL-13487 KW - United States KW - aquifer vulnerability KW - water quality KW - experimental studies KW - Washington KW - monitoring KW - data acquisition KW - effluents KW - pollution KW - Hanford Site KW - ground water KW - aquifers KW - environmental management KW - laboratory studies KW - errors KW - detection KW - quality control KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52098174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=Gillespie%2C+B+M%3BDiediker%2C+L+P%3BDyekman%2C+D+L&rft.aulast=Gillespie&rft.aufirst=B&rft.date=2001-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Quality+assurance&rft.title=Quality+assurance&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 16 N1 - Availability - U. S. Geological Survey, Library, Reston, VA, United States N1 - Document feature - illus. incl. 12 tables N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Hanford site environmental report for calendar year 2000; including some historical and early 2001 information AN - 52094286; 2002-048780 JF - Hanford site environmental report for calendar year 2000; including some historical and early 2001 information AU - Newcomer, D R AU - Hartman, M J A2 - Poston, T. M. A2 - Hanf, R. W. A2 - Dirkes, R. L. A2 - Morasch, L. F. Y1 - 2001/09// PY - 2001 DA - September 2001 VL - PNNL-13487 KW - water quality KW - Sr-90 KW - waste water KW - unsaturated zone KW - preferential flow KW - remediation KW - radioactive waste KW - springs KW - nitrate ion KW - discharge KW - monitoring KW - Co-60 KW - pollutants KW - confined aquifers KW - Hanford Site KW - potentiometric surface KW - organic compounds KW - transmissivity KW - uranium KW - waste disposal KW - unconfined aquifers KW - strontium KW - United States KW - chlorinated hydrocarbons KW - aquifer vulnerability KW - cobalt KW - isotopes KW - observation wells KW - environmental analysis KW - drinking water KW - ground water KW - radioactive isotopes KW - cesium KW - Columbia River basin KW - halogenated hydrocarbons KW - water use KW - bedrock KW - alkaline earth metals KW - Washington KW - alkali metals KW - pollution KW - carbon tetrachloride KW - aquifers KW - Cs-137 KW - liquid waste KW - metals KW - shallow aquifers KW - aquatic environment KW - actinides KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52094286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=report&rft.jtitle=&rft.atitle=&rft.au=Newcomer%2C+D+R%3BHartman%2C+M+J&rft.aulast=Newcomer&rft.aufirst=D&rft.date=2001-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Hanford+site+environmental+report+for+calendar+year+2000%3B+including+some+historical+and+early+2001+information&rft.title=Hanford+site+environmental+report+for+calendar+year+2000%3B+including+some+historical+and+early+2001+information&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Availability - U. S. Geological Survey, Library, Reston, VA, United States N1 - Document feature - illus. incl. 4 tables, geol. sketch maps N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - A method for estimating 2D wrinkle ridge strain from application of fault displacement scaling to the Yakima folds, Washington AN - 50154320; 2003-005969 AB - The Yakima folds on the central Columbia Plateau are a succession of thrusted anticlines thought to be analogs of planetary wrinkle ridges. They provide a unique opportunity to understand wrinkle ridge structure. Field data and length-displacement scaling are used to demonstrate a method for estimating two-dimensional horizontal contractional strain at wrinkle ridges. Strain is given as a function of ridge length, and depends on other parameters that can be inferred from the Yakima folds and fault population displacement studies. Because ridge length can be readily obtained from orbital imagery, the method can be applied to any wrinkle ridge population, and helps constrain quantitative tectonic models on other planets. Copyright 2001 by the American Geophysical Union. JF - Geophysical Research Letters AU - Mege, Daniel AU - Reidel, Stephen P Y1 - 2001/09// PY - 2001 DA - September 2001 SP - 3545 EP - 3548 PB - American Geophysical Union, Washington, DC VL - 28 IS - 18 SN - 0094-8276, 0094-8276 KW - United States KW - scale factor KW - strain KW - wrinkle ridges KW - displacements KW - two-dimensional models KW - crustal shortening KW - quantitative analysis KW - folds KW - compression tectonics KW - Columbia Plateau KW - Yakima fold belt KW - tectonics KW - faults KW - horizontal orientation KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50154320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=A+method+for+estimating+2D+wrinkle+ridge+strain+from+application+of+fault+displacement+scaling+to+the+Yakima+folds%2C+Washington&rft.au=Mege%2C+Daniel%3BReidel%2C+Stephen+P&rft.aulast=Mege&rft.aufirst=Daniel&rft.date=2001-09-01&rft.volume=28&rft.issue=18&rft.spage=3545&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2001GL012934 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - Columbia Plateau; compression tectonics; crustal shortening; displacements; faults; folds; horizontal orientation; quantitative analysis; scale factor; strain; tectonics; two-dimensional models; United States; wrinkle ridges; Yakima fold belt DO - http://dx.doi.org/10.1029/2001GL012934 ER - TY - JOUR T1 - Evaluation of environmental effects on fatigue life of piping AN - 18122149; 5224083 AB - Recent data indicate that the effects of light water reactor environments can significantly reduce the fatigue resistance of materials, and show that design fatigue curves may not be conservative for reactor coolant environments. Using revised fatigue curves developed by Argonne National Laboratory (ANL), the work of this paper calculates the expected probabilities of fatigue failures and associated core damage frequencies at a 40-year and 60-year plant life for a sample of components from five PWR and two BWR plants. These calculations were made possible by the development of an enhanced version of the pc-PRAISE probabilistic fracture mechanics code that has the ability to simulate the initiation of fatigue cracks followed by the linking of these cracks. Results of interim calculations subject to review are presented. Components with the highest probabilities of failure can have predicted frequencies of through-wall cracks in the order of about 5 x 10 super(-2) per year. The corresponding maximum contributions to core damage frequencies are in the order of 10 super(-6) per year. Components with the very high failure rates show essentially no increase in calculated core damage frequency from 40 to 60 years. JF - Nuclear Engineering and Design AU - Simonen, F A AU - Khaleel, MA AU - Phan, H K AU - Harris, DO AU - Dedhia, D D AU - Kalinousky, D N AU - Shaukat, S K AD - Pacific Northwest National Laboratory, Computational Mechanics and Materials, P.O. Box 999, Richland, WA 99352, USA, fredric.simonen@pnl.gov Y1 - 2001/09// PY - 2001 DA - Sep 2001 SP - 143 EP - 165 VL - 208 IS - 2 SN - 0029-5493, 0029-5493 KW - boiling water reactors KW - fatigue KW - light water reactors KW - pressurized water reactors KW - service life KW - Health & Safety Science Abstracts KW - Nuclear power plants KW - Life cycle analysis KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18122149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nuclear+Engineering+and+Design&rft.atitle=Evaluation+of+environmental+effects+on+fatigue+life+of+piping&rft.au=Simonen%2C+F+A%3BKhaleel%2C+MA%3BPhan%2C+H+K%3BHarris%2C+DO%3BDedhia%2C+D+D%3BKalinousky%2C+D+N%3BShaukat%2C+S+K&rft.aulast=Simonen&rft.aufirst=F&rft.date=2001-09-01&rft.volume=208&rft.issue=2&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Nuclear+Engineering+and+Design&rft.issn=00295493&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Nuclear power plants; Life cycle analysis ER - TY - JOUR T1 - Injectable gels for tissue engineering. AN - 71084556; 11500810 AB - Recently, tissue engineering approaches using injectable, in situ gel forming systems have been reported. In this review, the gelation processes and several injectable systems that exhibit in situ gel formation at physiological conditions are discussed. Applications of selected injectable systems (alginate, chitosan, hyaluronan, polyethylene oxide/polypropylene oxide) in tissue engineering are also described. Injectable polymer formulation can gel in vivo in response to temperature change (thermal gelation), pH change, ionic cross-linking, or solvent exchange. Kinetics of gelation is directly affected by its mechanism. Injectable formulations offer specific advantages over preformed scaffolds such as: possibility of a minimally invasive implantation, an ability to fill a desired shape, and easy incorporation of various therapeutic agents. Several factors need to be considered before an injectable gel can be selected as a candidate for tissue engineering applications. Apart from tissue-specific cell-matrix interactions, the following gel properties need to be considered: gelation kinetics, matrix resorption rate, possible toxicity of degradation products and their elimination routes, and finally possible interference of the gel matrix with histogenesis. JF - The Anatomical record AU - Gutowska, A AU - Jeong, B AU - Jasionowski, M AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. anna..gustowska@pnl.gov Y1 - 2001/08/01/ PY - 2001 DA - 2001 Aug 01 SP - 342 EP - 349 VL - 263 IS - 4 SN - 0003-276X, 0003-276X KW - Alginates KW - 0 KW - Biocompatible Materials KW - Gels KW - Hexuronic Acids KW - Polymers KW - Propylene Glycols KW - Chitin KW - 1398-61-4 KW - polypropylene glycol KW - 25322-69-4 KW - Polyethylene Glycols KW - 30IQX730WE KW - Glucuronic Acid KW - 8A5D83Q4RW KW - alginic acid KW - 8C3Z4148WZ KW - Hyaluronic Acid KW - 9004-61-9 KW - Chitosan KW - 9012-76-4 KW - Index Medicus KW - Animals KW - Polymers -- administration & dosage KW - Humans KW - Alginates -- administration & dosage KW - Polyethylene Glycols -- administration & dosage KW - Propylene Glycols -- administration & dosage KW - Chitin -- administration & dosage KW - Chitin -- analogs & derivatives KW - Bioartificial Organs KW - Hyaluronic Acid -- administration & dosage KW - Injections KW - Biocompatible Materials -- administration & dosage KW - Gels -- administration & dosage KW - Biomedical Engineering -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71084556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Anatomical+record&rft.atitle=Injectable+gels+for+tissue+engineering.&rft.au=Gutowska%2C+A%3BJeong%2C+B%3BJasionowski%2C+M&rft.aulast=Gutowska&rft.aufirst=A&rft.date=2001-08-01&rft.volume=263&rft.issue=4&rft.spage=342&rft.isbn=&rft.btitle=&rft.title=The+Anatomical+record&rft.issn=0003276X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-09-27 N1 - Date created - 2001-08-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Step edges on galena (100); probing the basis for defect driven surface reactivity at the atomic scale AN - 52207070; 2001-057094 AB - Scanning tunneling microscopy (STM) images of the PbS (100) surface with a step and several kinks were obtained with atomic resolution. These images show an increased tunneling current at step edge sites and an apparent deformation of the lattice near the step. The experimental images are compared with theoretical ab initio calculations for which we developed a hybrid method of constant current and constant height mode STM image simulation. With these calculations, we find that the apparent deformation is mainly an electronic effect rather than relaxation of atoms. In addition, with the help of these calculations, we can identify the changes of individual terrace-like and step-like orbitals that are observed using the STM in terms of the energy, density and shape of these states. This detailed knowledge of the electronic behavior of the PbS surface near a step can be used as a basis for explaining adsorption, acid/base, and redox behavior on PbS terraces and at steps, and the differences between the two. JF - American Mineralogist AU - Becker, Udo AU - Rosso, Kevin M Y1 - 2001/08// PY - 2001 DA - August 2001 SP - 862 EP - 870 PB - Mineralogical Society of America, Washington, DC VL - 86 IS - 7-8 SN - 0003-004X, 0003-004X KW - scanning tunneling microscopy data KW - imagery KW - galena KW - surface defects KW - crystal structure KW - sulfides KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52207070?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Step+edges+on+galena+%28100%29%3B+probing+the+basis+for+defect+driven+surface+reactivity+at+the+atomic+scale&rft.au=Becker%2C+Udo%3BRosso%2C+Kevin+M&rft.aulast=Becker&rft.aufirst=Udo&rft.date=2001-08-01&rft.volume=86&rft.issue=7-8&rft.spage=862&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 55 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - crystal structure; galena; imagery; scanning tunneling microscopy data; sulfides; surface defects ER - TY - JOUR T1 - The proximity effect on semiconducting mineral surfaces; a new aspect of mineral surface reactivity and surface complexation theory? AN - 52200726; 2001-063684 AB - The observation and description of surface proximity effects, whereby the chemical reaction of one surface site influences the electronic structure and reactivity of neighboring or nearby sites, is presented in this study for the semiconducting minerals galena (PbS) and pyrite (FeS (sub 2) ). The methods used to study this effect include ab initio molecular orbital calculations and scanning tunneling microscopy and spectroscopy. The surface proximity effect can be manifested in different ways, although the principle is the same. For example, we predict that electron transfer in redox reactions on galena surfaces can involve separated sites with specific and special locations. Another example is seen for pyrite where the oxidation of one site on a terrace influences next-nearest neighbor sites, making them far more susceptible to oxidative attack relative to sites further away. The range of potential applications of the surface proximity effect model is also outlined for a number of environmentally and industrially important examples. These findings, in combination with surface complexation theory, an important model for attachment/detachment reactions at mineral-water interfaces, may eventually lead to an extended model that will include the specific influence of semiconductor-type proximity effects. JF - Geochimica et Cosmochimica Acta AU - Becker, Udo AU - Rosso, Kevin M AU - Hochella, Michael F, Jr Y1 - 2001/08// PY - 2001 DA - August 2001 SP - 2641 EP - 2649 PB - Pergamon, Oxford VL - 65 IS - 16 SN - 0016-7037, 0016-7037 KW - experimental studies KW - complexing KW - mineral-water interface KW - crystal structure KW - bonding KW - laboratory studies KW - galena KW - chemical reactions KW - semiconductors KW - pyrite KW - crystal chemistry KW - sulfides KW - geochemistry KW - electrons KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52200726?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+proximity+effect+on+semiconducting+mineral+surfaces%3B+a+new+aspect+of+mineral+surface+reactivity+and+surface+complexation+theory%3F&rft.au=Becker%2C+Udo%3BRosso%2C+Kevin+M%3BHochella%2C+Michael+F%2C+Jr&rft.aulast=Becker&rft.aufirst=Udo&rft.date=2001-08-01&rft.volume=65&rft.issue=16&rft.spage=2641&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2801%2900624-X L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 66 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bonding; chemical reactions; complexing; crystal chemistry; crystal structure; electrons; experimental studies; galena; geochemistry; laboratory studies; mineral-water interface; pyrite; semiconductors; sulfides DO - http://dx.doi.org/10.1016/S0016-7037(01)00624-X ER - TY - JOUR T1 - Theoretical estimation of free and entrapped nonwetting-wetting fluid interfacial areas in porous media AN - 52072725; 2002-063861 JF - Advances in Water Resources AU - Oostrom, M AU - White, M D AU - Brusseau, M L Y1 - 2001/08// PY - 2001 DA - August 2001 SP - 887 EP - 898 PB - Elsevier, Oxford VL - 24 IS - 8 SN - 0309-1708, 0309-1708 KW - nonaqueous phase liquids KW - models KW - theoretical studies KW - sensitivity analysis KW - pollutants KW - pollution KW - porous materials KW - Cary, John W. KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52072725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Theoretical+estimation+of+free+and+entrapped+nonwetting-wetting+fluid+interfacial+areas+in+porous+media&rft.au=Oostrom%2C+M%3BWhite%2C+M+D%3BBrusseau%2C+M+L&rft.aulast=Oostrom&rft.aufirst=M&rft.date=2001-08-01&rft.volume=24&rft.issue=8&rft.spage=887&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Cary, John W.; models; nonaqueous phase liquids; pollutants; pollution; porous materials; sensitivity analysis; theoretical studies ER - TY - JOUR T1 - Asian dust events of April 1998 AN - 50152812; 2002-032381 AB - On April 15 and 19, 1998, two intense dust storms were generated over the Gobi desert by springtime low-pressure systems descending from the northwest. The windblown dust was detected and its evolution followed by its yellow color on SeaWiFS satellite images, routine surface-based monitoring, and through serendipitous observations. The April 15 dust cloud was recirculating, and it was removed by a precipitating weather system over east Asia. The April 19 dust cloud crossed the Pacific Ocean in 5 days, subsided to the surface along the mountain ranges between British Columbia and California, and impacted severely the optical and the concentration environments of the region. In east Asia the dust clouds increased the albedo over the cloudless ocean and land by up to 10-20%, but it reduced the near-UV cloud reflectance, causing a yellow coloration of all surfaces. The yellow colored backscattering by the dust eludes a plausible explanation using simple Mie theory with constant refractive index. Over the West Coast the dust layer has increased the spectrally uniform optical depth to about 0.4, reduced the direct solar radiation by 30-40%, doubled the diffuse radiation, and caused a whitish discoloration of the blue sky. On April 29 the average excess surface-level dust aerosol concentration over the valleys of the West Coast was about 20-50 mu g/m (super 3) with local peaks >100 mu g/m (super 3) . The dust mass mean diameter was 2-3 mu m, and the dust chemical fingerprints were evident throughout the West Coast and extended to Minnesota. The April 1998 dust event has impacted the surface aerosol concentration 2-4 times more than any other dust event since 1988. The dust events were observed and interpreted by an ad hoc international web-based virtual community. It would be useful to set up a community-supported web-based infrastructure to monitor the global aerosol pattern for such extreme aerosol events, to alert and to inform the interested communities, and to facilitate collaborative analysis for improved air quality and disaster management. Copyright 2001 by the American Geophysical Union. JF - Journal of Geophysical Research AU - Husar, R B AU - Tratt, David M AU - Schichtel, B A AU - Falke, S R AU - Li, F AU - Jaffe, D AU - Gasso, S AU - Gill, T AU - Laulainen, N S AU - Lu, F AU - Reheis, M C AU - Chun, Y AU - Westphal, Douglas L AU - Holben, B N AU - Gueymard, C AU - McKendry, I AU - Kuring, N AU - Feldman, G C AU - McClain, C AU - Frouin, R J AU - Merrill, J AU - DuBois, D AU - Vignola, F AU - Murayama, T AU - Nickovic, Slobodan AU - Wilson, W E AU - Sassen, K AU - Sugimoto, N AU - Malm, W C AU - Sokolik, I N AU - Winker, D M AU - Bergametti, G AU - Gillette, Dale A AU - Carmichael, Gregory R AU - Kaufman, Yoram J AU - Gomes, Laurent AU - Schuetz, L AU - Penner, J E Y1 - 2001/08// PY - 2001 DA - August 2001 SP - 18 EP - 18,330 PB - American Geophysical Union, Washington, DC VL - 106 IS - D16 SN - 0148-0227, 0148-0227 KW - dust storms KW - clouds KW - concentration KW - TOMS KW - sediment transport KW - clastic sediments KW - global KW - SeaWiFS KW - British Columbia KW - atmosphere KW - Gobi Desert KW - satellite methods KW - environmental analysis KW - atmospheric circulation KW - Canada KW - dust KW - sediments KW - Western Canada KW - wind transport KW - Asia KW - climate KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50152812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Asian+dust+events+of+April+1998&rft.au=Husar%2C+R+B%3BTratt%2C+David+M%3BSchichtel%2C+B+A%3BFalke%2C+S+R%3BLi%2C+F%3BJaffe%2C+D%3BGasso%2C+S%3BGill%2C+T%3BLaulainen%2C+N+S%3BLu%2C+F%3BReheis%2C+M+C%3BChun%2C+Y%3BWestphal%2C+Douglas+L%3BHolben%2C+B+N%3BGueymard%2C+C%3BMcKendry%2C+I%3BKuring%2C+N%3BFeldman%2C+G+C%3BMcClain%2C+C%3BFrouin%2C+R+J%3BMerrill%2C+J%3BDuBois%2C+D%3BVignola%2C+F%3BMurayama%2C+T%3BNickovic%2C+Slobodan%3BWilson%2C+W+E%3BSassen%2C+K%3BSugimoto%2C+N%3BMalm%2C+W+C%3BSokolik%2C+I+N%3BWinker%2C+D+M%3BBergametti%2C+G%3BGillette%2C+Dale+A%3BCarmichael%2C+Gregory+R%3BKaufman%2C+Yoram+J%3BGomes%2C+Laurent%3BSchuetz%2C+L%3BPenner%2C+J+E&rft.aulast=Husar&rft.aufirst=R&rft.date=2001-08-01&rft.volume=106&rft.issue=D16&rft.spage=18&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2000JD900788 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 56 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 plates, geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; atmosphere; atmospheric circulation; British Columbia; Canada; clastic sediments; climate; clouds; concentration; dust; dust storms; environmental analysis; global; Gobi Desert; remote sensing; satellite methods; SeaWiFS; sediment transport; sediments; TOMS; Western Canada; wind transport DO - http://dx.doi.org/10.1029/2000JD900788 ER - TY - JOUR T1 - Simulated annealing with memory and directional search for ground water remediation design AN - 18184017; 5207480 AB - Review of recent literature indicates an emergence in the use of combinatorial methods such as simulated annealing in ground water management during the past nine to ten years. While previous studies demonstrated the feasibility of using these methods, a general finding was that computational processing requirements were inordinately high relative to gradient-based methods. An enhanced annealing algorithm was developed and used to demonstrate the potential for greatly improving the computational efficiency of simulated annealing as an optimization method for ground water management applications. The algorithm incorporates "directional search" and "memory" capabilities. Selecting search directions based on better understanding of the current neighborhood of the configuration space was shown to improve algorithm performance. Also, "memory" concepts derived from the Tabu Search Method show particular promise for improving the rate and quality of convergence. Performance of the enhanced annealing method was evaluated and the resultant management method was demonstrated using an example from the literature. JF - Journal of the American Water Resources Association AU - Skaggs, R L AU - Mays, L W AU - Vail, L W AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P.O. Box 999, Richland, Washington 99352, USA, richard.skaggs@pnl.gov Y1 - 2001/08// PY - 2001 DA - Aug 2001 SP - 853 EP - 866 VL - 37 IS - 4 SN - 1093-474X, 1093-474X KW - ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts KW - Algorithms KW - Water resources KW - Simulation KW - Algorithm KW - Water use KW - Mathematical Studies KW - Water management KW - Remediation KW - Groundwater (see also Aquifers) KW - Data Processing KW - Groundwater pollution KW - Literature Review KW - Groundwater Management KW - Optimization KW - Pollution control KW - AQ 00001:Water Resources and Supplies KW - SW 2040:Groundwater management KW - Q5 08502:Methods and instruments KW - SW 4010:Techniques of planning UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18184017?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Simulated+annealing+with+memory+and+directional+search+for+ground+water+remediation+design&rft.au=Skaggs%2C+R+L%3BMays%2C+L+W%3BVail%2C+L+W&rft.aulast=Skaggs&rft.aufirst=R&rft.date=2001-08-01&rft.volume=37&rft.issue=4&rft.spage=853&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Water management; Algorithms; Groundwater pollution; Simulation; Pollution control; Water use; Remediation; Groundwater (see also Aquifers); Water resources; Algorithm; Mathematical Studies; Data Processing; Literature Review; Groundwater Management; Optimization ER - TY - JOUR T1 - Application of enhanced annealing to ground water remediation design AN - 16130377; 5207481 AB - A methodology for ground water remediation design has been developed that interfaces ground water simulation models with an enhanced annealing optimizer. The ground water flow and transport simulators provide the ability to consider site-specific contamination and geohydrologic conditions directly in the assessment of alternative remediation system designs. The optimizer facilitates analysis of tradeoffs between technical, environmental, regulatory, and financial risks for alternative design and operation scenarios. A ground water management model using an optimization method referred to as "enhanced annealing" (simulated annealing enhanced to include "directional search" and "memory" mechanisms) has been developed and successfully applied to an actual restoration problem. The demonstration site is the contaminated unconfined aquifer referred to as N-Springs located at Hanford, Washington. Results of the demonstration show the potential for improving groundwater restoration system performance while reducing overall system cost. JF - Journal of the American Water Resources Association AU - Skaggs, R L AU - Mays, L W AU - Vail, L W AD - Pacific Northwest National Laboratory, 902 Battelle Blvd., P.O. Box 999, Richland, Washington 99352, USA, richard.skaggs@pnl.gov Y1 - 2001/08// PY - 2001 DA - Aug 2001 SP - 867 EP - 875 VL - 37 IS - 4 SN - 1093-474X, 1093-474X KW - USA, Washington, Hanford KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Aqualine Abstracts; Water Resources Abstracts KW - Aquifers KW - Low cost) KW - Bioremediation KW - Environmental Quality KW - Water resources KW - Groundwater Pollution KW - Model Testing KW - Costs (see also Economics KW - Restoration KW - Costs KW - Water treatment KW - Mathematical models KW - Case Studies KW - Simulation KW - Model Studies KW - Design KW - Design Criteria KW - Remediation KW - Groundwater (see also Aquifers) KW - Groundwater pollution KW - Contamination (see also Pollution) KW - Optimization KW - Pollution control KW - AQ 00001:Water Resources and Supplies KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control KW - SW 4010:Techniques of planning KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16130377?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Application+of+enhanced+annealing+to+ground+water+remediation+design&rft.au=Skaggs%2C+R+L%3BMays%2C+L+W%3BVail%2C+L+W&rft.aulast=Skaggs&rft.aufirst=R&rft.date=2001-08-01&rft.volume=37&rft.issue=4&rft.spage=867&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-03-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Mathematical models; Water treatment; Groundwater pollution; Simulation; Pollution control; Aquifers; Bioremediation; Water resources; Design; Low cost); Remediation; Groundwater (see also Aquifers); Contamination (see also Pollution); Costs (see also Economics; Restoration; Costs; Case Studies; Environmental Quality; Design Criteria; Groundwater Pollution; Model Testing; Optimization; Model Studies ER - TY - JOUR T1 - H2S(g) treatment of Cr(VI)-contaminated sediment; implications for in-situ remediation AN - 1020539320; 2012-057922 JF - SSSA-ASA-CSSA Annual Meeting Abstracts AU - Thornton, E C AU - Amonette, James A AU - Anonymous Y1 - 2001/08// PY - 2001 DA - August 2001 EP - unpaginated PB - American Society of Agronomy and Crop Science Society of America and Soil Science Society of America, [varies] VL - 2001 KW - soils KW - experimental studies KW - in situ KW - pollutants KW - pollution KW - techniques KW - hydrogen sulfide KW - remediation KW - hexavalent chromium KW - metals KW - sediments KW - chemical properties KW - permeability KW - chromium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020539320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.atitle=H2S%28g%29+treatment+of+Cr%28VI%29-contaminated+sediment%3B+implications+for+in-situ+remediation&rft.au=Thornton%2C+E+C%3BAmonette%2C+James+A%3BAnonymous&rft.aulast=Thornton&rft.aufirst=E&rft.date=2001-08-01&rft.volume=2001&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2001 annual meeting of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-15 N1 - CODEN - #06963 N1 - SubjectsTermNotLitGenreText - chemical properties; chromium; experimental studies; hexavalent chromium; hydrogen sulfide; in situ; metals; permeability; pollutants; pollution; remediation; sediments; soils; techniques ER - TY - JOUR T1 - Cr(VI)-enriched calcite; a long-term source of Cr(VI) contamination AN - 1020539314; 2012-057921 JF - SSSA-ASA-CSSA Annual Meeting Abstracts AU - Thornton, E C AU - McKinley, J P AU - Amonette, Jim E AU - Olsen, K B AU - McCready, D E AU - Deng, B AU - Anonymous Y1 - 2001/08// PY - 2001 DA - August 2001 EP - unpaginated PB - American Society of Agronomy and Crop Science Society of America and Soil Science Society of America, [varies] VL - 2001 KW - United States KW - Washington KW - unsaturated zone KW - pollution KW - Hanford Site KW - calcite KW - hexavalent chromium KW - transport KW - dissolved materials KW - metals KW - sediments KW - carbonates KW - chromium KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020539314?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.atitle=Cr%28VI%29-enriched+calcite%3B+a+long-term+source+of+Cr%28VI%29+contamination&rft.au=Thornton%2C+E+C%3BMcKinley%2C+J+P%3BAmonette%2C+Jim+E%3BOlsen%2C+K+B%3BMcCready%2C+D+E%3BDeng%2C+B%3BAnonymous&rft.aulast=Thornton&rft.aufirst=E&rft.date=2001-08-01&rft.volume=2001&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2001 annual meeting of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-15 N1 - CODEN - #06963 N1 - SubjectsTermNotLitGenreText - calcite; carbonates; chemical fractionation; chromium; dissolved materials; Hanford Site; hexavalent chromium; metals; pollution; sediments; transport; United States; unsaturated zone; Washington ER - TY - JOUR T1 - Impact of redox-sensitive minerals on soil organic-C sequestration AN - 1020539311; 2012-057920 JF - SSSA-ASA-CSSA Annual Meeting Abstracts AU - Amonette, Jim E AU - Capp, J A AU - Russell, C K AU - Anonymous Y1 - 2001/08// PY - 2001 DA - August 2001 EP - unpaginated PB - American Society of Agronomy and Crop Science Society of America and Soil Science Society of America, [varies] VL - 2001 KW - silicates KW - carbon sequestration KW - iron oxides KW - oxidation KW - humates KW - soil treatment KW - smectite KW - pollution KW - polymerization KW - clay minerals KW - organic compounds KW - humic substances KW - manganese oxides KW - chemical properties KW - oxides KW - sheet silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020539311?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.atitle=Impact+of+redox-sensitive+minerals+on+soil+organic-C+sequestration&rft.au=Amonette%2C+Jim+E%3BCapp%2C+J+A%3BRussell%2C+C+K%3BAnonymous&rft.aulast=Amonette&rft.aufirst=Jim&rft.date=2001-08-01&rft.volume=2001&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2001 annual meeting of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-15 N1 - CODEN - #06963 N1 - SubjectsTermNotLitGenreText - carbon sequestration; chemical properties; clay minerals; humates; humic substances; iron oxides; manganese oxides; organic compounds; oxidation; oxides; pollution; polymerization; sheet silicates; silicates; smectite; soil treatment ER - TY - JOUR T1 - Dissolution and precipitation in Hanford sediments under alkaline conditions AN - 1020537731; 2012-057834 JF - SSSA-ASA-CSSA Annual Meeting Abstracts AU - Qafoku, Nik P AU - Ainsworth, C C AU - Szecsody, J E AU - Qafoku, O S AU - Anonymous Y1 - 2001/08// PY - 2001 DA - August 2001 EP - unpaginated PB - American Society of Agronomy and Crop Science Society of America and Soil Science Society of America, [varies] VL - 2001 KW - United States KW - silicates KW - leaking underground storage tanks KW - concentration KW - toxic materials KW - Washington KW - alkali metals KW - solutes KW - pollution KW - Hanford Site KW - suspended materials KW - mica group KW - precipitation KW - metals KW - sediments KW - potassium KW - chemical properties KW - sheet silicates KW - alkalinity KW - saline composition KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020537731?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.atitle=Dissolution+and+precipitation+in+Hanford+sediments+under+alkaline+conditions&rft.au=Qafoku%2C+Nik+P%3BAinsworth%2C+C+C%3BSzecsody%2C+J+E%3BQafoku%2C+O+S%3BAnonymous&rft.aulast=Qafoku&rft.aufirst=Nik&rft.date=2001-08-01&rft.volume=2001&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=SSSA-ASA-CSSA+Annual+Meeting+Abstracts&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 2001 annual meeting of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-03-14 N1 - CODEN - #06963 N1 - SubjectsTermNotLitGenreText - alkali metals; alkalinity; chemical properties; concentration; Hanford Site; leaking underground storage tanks; metals; mica group; pollution; potassium; precipitation; saline composition; sediments; sheet silicates; silicates; solutes; suspended materials; toxic materials; United States; Washington ER - TY - JOUR T1 - Detecting and genotyping Escherichia coli O157:H7 using multiplexed PCR and nucleic acid microarrays AN - 18350735; 5278756 AB - Rapid detection and characterization of food borne pathogens such as Escherichia coli O157:H7 is crucial for epidemiological investigations and food safety surveillance. As an alternative to conventional technologies, we examined the sensitivity and specificity of nucleic acid microarrays for detecting and genotyping E. coli O157:H7. The array was composed of oligonucleotide probes (25-30 mer) complementary to four virulence loci (intimin, Shiga-like toxins I and II, and hemolysin A). Target DNA was amplified from whole cells or from purified DNA via single or multiplexed polymerase chain reaction (PCR), and PCR products were hybridized to the array without further modification or purification. The array was 32-fold more sensitive than gel electrophoresis and capable of detecting amplification products from < 1 cell equivalent of genomic DNA (1 fg). Immunomagnetic capture, PCR and a microarray were subsequently used to detect 55 CFU ml super(-1) (E. coli O157:H7) from chicken rinsate without the aid of pre-enrichment. Four isolates of E. coli O157:H7 and one isolate of O91:H2, for which genotypic data were available, were unambiguously genotyped with this array. Glass-based microarrays are relatively simple to construct and provide a rapid and sensitive means to detect multiplexed PCR products; the system is amenable to automation. JF - International Journal of Food Microbiology AU - Call AU - Brockman, F J AU - Chandler, D P AD - Environmental Microbiology, Pacific Northwest National Laboratory, P.O. Box 999, MS P7-50, Richland, WA 99352, USA, drcall@wsu.edu Y1 - 2001/07/20/ PY - 2001 DA - 2001 Jul 20 SP - 71 EP - 80 VL - 67 IS - 1-2 SN - 0168-1605, 0168-1605 KW - O157:H7 KW - detection KW - DNA microarrays KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Genotyping KW - Escherichia coli KW - Polymerase chain reaction KW - Surveillance KW - Food-borne diseases KW - A 01116:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18350735?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Food+Microbiology&rft.atitle=Detecting+and+genotyping+Escherichia+coli+O157%3AH7+using+multiplexed+PCR+and+nucleic+acid+microarrays&rft.au=Call%3BBrockman%2C+F+J%3BChandler%2C+D+P&rft.aulast=Call&rft.aufirst=&rft.date=2001-07-20&rft.volume=67&rft.issue=1-2&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Food+Microbiology&rft.issn=01681605&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Escherichia coli; Food-borne diseases; Surveillance; Genotyping; Polymerase chain reaction ER - TY - JOUR T1 - Differential regulation of redox responsive transcription factors by the nephrocarcinogen 2,3,5-Tris(glutathion-S-yl)hydroquinone. AN - 71056186; 11453727 AB - 2,3,5-Tris(glutathion-S-yl)hydroquinone [TGHQ] is a potent nephrotoxicant and nephrocarcinogen, and induces a spectrum of mutations in human and bacterial cells consistent with those attributed to reactive oxygen species (ROS). Studies were conducted to determine whether the oxidative stress induced by TGHQ in renal proximal tubule epithelial cells (LLC-PK(1)) modulates transcriptional activities widely implicated in transformation responses, namely 12-O-tetradecanoyl phorbol 13-acetate (TPA) responsive element (TRE)- and nuclear factor kappa B (NF-kappaB)-binding activity. TGHQ increased TRE- and NF-kappaB-binding activity in a concentration- and time-dependent manner. Catalase fully inhibited peak TGHQ-mediated TRE- and NF-kappaB-binding activity. In contrast, although deferoxamine fully inhibited TGHQ-mediated TRE-binding activity, it had only a marginal effect on NF-kappaB-binding activity. Collectively, these data indicate that TGHQ modulates TRE- and NF-kappaB-binding activity in an ROS-dependent fashion. Cycloheximide and actinomycin D fully inhibited TGHQ-mediated TRE-binding activity, but in the absence of TGHQ increased NF-kappaB-binding activity. Although protein kinase C (PKC) is widely implicated in stress response signaling, pretreatment of cells with PKC inhibitors (H-89, calphostin C) did not modulate TGHQ-mediated DNA-binding activities. In contrast, pretreatment of cells with (PD098059), a mitogen activated protein kinase kinase (MEK) inhibitor, markedly reduced TGHQ-mediated TRE-binding activity, but enhanced TGHQ-mediated NF-kappaB-binding activity. We conclude that TGHQ-mediated TRE- and NF-kappaB-binding activities are ROS-dependent. Although there is a common requirement for hydrogen peroxide (H(2)O(2)) in the regulation of these DNA-binding activities, there appears to be divergent regulation after H(2)O(2) generation in renal epithelial cells. JF - Chemical research in toxicology AU - Weber, T J AU - Huang, Q AU - Monks, T J AU - Lau, S S AD - Molecular Biosciences, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. Y1 - 2001/07// PY - 2001 DA - July 2001 SP - 814 EP - 821 VL - 14 IS - 7 SN - 0893-228X, 0893-228X KW - 2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one KW - 0 KW - Carcinogens KW - DNA-Binding Proteins KW - Enzyme Inhibitors KW - Flavonoids KW - Hydroquinones KW - NF-kappa B KW - Nuclear Proteins KW - Reactive Oxygen Species KW - Regulatory Factor X Transcription Factors KW - Transcription Factors KW - 2,3,5-(triglutathion-S-yl)hydroquinone KW - 119212-33-8 KW - Hydrogen Peroxide KW - BBX060AN9V KW - Protein-Serine-Threonine Kinases KW - EC 2.7.11.1 KW - MAP Kinase Kinase Kinase 1 KW - EC 2.7.11.25 KW - MAP3K1 protein, human KW - Glutathione KW - GAN16C9B8O KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Protein-Serine-Threonine Kinases -- metabolism KW - Dose-Response Relationship, Drug KW - Humans KW - Protein-Serine-Threonine Kinases -- antagonists & inhibitors KW - Transcription Factors -- biosynthesis KW - Epithelial Cells -- metabolism KW - Hydrogen Peroxide -- toxicity KW - Epithelial Cells -- drug effects KW - Cells, Cultured KW - Kinetics KW - Oxidative Stress KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Enzyme Inhibitors -- pharmacology KW - LLC-PK1 Cells KW - Flavonoids -- pharmacology KW - Signal Transduction KW - Hydroquinones -- pharmacology KW - Reactive Oxygen Species -- metabolism KW - Carcinogens -- pharmacology KW - Kidney Tubules, Proximal -- metabolism KW - Kidney Tubules, Proximal -- drug effects KW - Nuclear Proteins -- metabolism KW - Glutathione -- pharmacology KW - Glutathione -- analogs & derivatives KW - NF-kappa B -- metabolism KW - DNA-Binding Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71056186?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+research+in+toxicology&rft.atitle=Differential+regulation+of+redox+responsive+transcription+factors+by+the+nephrocarcinogen+2%2C3%2C5-Tris%28glutathion-S-yl%29hydroquinone.&rft.au=Weber%2C+T+J%3BHuang%2C+Q%3BMonks%2C+T+J%3BLau%2C+S+S&rft.aulast=Weber&rft.aufirst=T&rft.date=2001-07-01&rft.volume=14&rft.issue=7&rft.spage=814&rft.isbn=&rft.btitle=&rft.title=Chemical+research+in+toxicology&rft.issn=0893228X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-12-04 N1 - Date created - 2001-07-16 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A fluorescence spectroscopic study of phenanthrene sorption on porous silica. AN - 71000699; 11452596 AB - Fluorescence spectroscopic characteristics of sorbed phenanthrene in porous silica provide information about its chemical state such as monomer vs dimer or higher aggregates, as well as a basis for high sensitivity detection. In this study, the chemical state and distribution of phenanthrene sorbed in two types of porous silica particles, mesoporous silica (365 microns particle diameter, 150 A average pore diameter) and microporous silica (custom synthethized, 1 micron particle diameter, 20 A pore diameter), is determined by fluorescence spectroscopy, fluorescence lifetime measurements, and scanning two-photon excitation fluorescence profiling. From the characteristic fluorescence emission spectra, it is found that at loading levels of < or = 4.7 mg/g (phenanthrene/silica) phenanthrene exists as monomers in both meso- and microporous silica particles for phenanthrene loaded from super critical CO2 (SCF). Two-photon excitation fluorescence intensity distribution profiles indicate that for the mesoporous silica particles phenanthrene is adsorbed throughout the entire silica particle. Introduction of water into phenanthrene-loaded mesoporous silica particles causes instantaneous conversion of phenanthrene from monomer to crystalline form at phenantherene loading levels > or = 4.7 micrograms/g due to hydration of the silica surface. In this process, sorption of water molecules expels phenanthrene from the surface sorption sites and causes localized phenanthrene concentration beyond its solubility limit, resulting in crystallization. In comparison this fast conversion is not observed for phenanthrene-loaded microporous silica particles that show extremely slow conversion even for phenanthrene loading levels as high as 4.7 mg/g. This difference is interpreted as reflecting hindered diffusion of phenanthrene in the nearly monodispersed micropores with pore sizes close to the molecular diameter of phenanthrene. JF - Environmental science & technology AU - Wang, Z AU - Friedrich, D M AU - Beversluis, M R AU - Hemmer, S L AU - Joly, A G AU - Huesemann, M H AU - Truex, M J AU - Riley, R G AU - Thompson, C J AU - Peyton, B M AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. zheming.wang@pnl.gov Y1 - 2001/07/01/ PY - 2001 DA - 2001 Jul 01 SP - 2710 EP - 2716 VL - 35 IS - 13 SN - 0013-936X, 0013-936X KW - Phenanthrenes KW - 0 KW - Water Pollutants, Chemical KW - phenanthrene KW - 448J8E5BST KW - Silicon Dioxide KW - 7631-86-9 KW - Index Medicus KW - Sensitivity and Specificity KW - Spectrometry, Fluorescence KW - Particle Size KW - Absorption KW - Diffusion KW - Phenanthrenes -- analysis KW - Water Pollutants, Chemical -- analysis KW - Phenanthrenes -- chemistry KW - Silicon Dioxide -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71000699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=A+fluorescence+spectroscopic+study+of+phenanthrene+sorption+on+porous+silica.&rft.au=Wang%2C+Z%3BFriedrich%2C+D+M%3BBeversluis%2C+M+R%3BHemmer%2C+S+L%3BJoly%2C+A+G%3BHuesemann%2C+M+H%3BTruex%2C+M+J%3BRiley%2C+R+G%3BThompson%2C+C+J%3BPeyton%2C+B+M&rft.aulast=Wang&rft.aufirst=Z&rft.date=2001-07-01&rft.volume=35&rft.issue=13&rft.spage=2710&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-12-04 N1 - Date created - 2001-07-16 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Evaluation of eight decision rules for low-level radioactivity counting. AN - 70940555; 11414621 AB - In low-level radioactivity measurements, it is often important to decide whether a measurement differs from background. A traditional formula for decision level (DL) is given in numerous sources, including the recent ANSI/HPS N13.30-1996, Performance Criteria for Radiobioassay and the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM). This formula, which we dub the N13.30 rule, does not adequately account for the discrete nature of the Poisson distribution for paired blank (equal count times for background and sample) measurements, especially at low numbers of counts. We calculate the actual false positive rates that occur using the N13.30 DL formula as a function of a priori false positive rate a and background Poisson mean mu = rhot, where rho is the underlying Poisson rate and t is the counting time. False positive rates exceed a by significant amounts for alpha < or = 0.2 and mu < 100 counts, peaking at 25% at mu approximately equal to 0.71, nearly independent of alpha. Monte Carlo simulations verified calculations. Currie's derivation of the N13.30 DL was based on knowing a good estimate of the mean and standard deviation of background, a case that does not hold for paired blanks and low background rates. We propose one new decision rule (simply add 1 to the number of background counts), and we present six additional decision rules from various sources. We evaluate the actual false positive rate for all eight decision rules as a function of a priori false positive rate and background mean. All of the seven alternative rules perform better than the N13.30 rule. Each has advantages and drawbacks. Given these results, we believe that many regulations, national standards, guidance documents, and texts should be corrected or modified to use a better decision rule. JF - Health physics AU - Strom, D J AU - MacLellan, J A AD - Risk Analysis and Health Protection, Pacific Northwest National Laboratory, Richland, WA 99352-0999, USA. daniel.j.strom@pnl.gov Y1 - 2001/07// PY - 2001 DA - July 2001 SP - 27 EP - 34 VL - 81 IS - 1 SN - 0017-9078, 0017-9078 KW - Index Medicus KW - Evaluation Studies as Topic KW - Radiation Dosage KW - Humans KW - Decision Making KW - Radiometry -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70940555?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Evaluation+of+eight+decision+rules+for+low-level+radioactivity+counting.&rft.au=Strom%2C+D+J%3BMacLellan%2C+J+A&rft.aulast=Strom&rft.aufirst=D&rft.date=2001-07-01&rft.volume=81&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=00179078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-07-05 N1 - Date created - 2001-06-20 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - In-situ oxidation of trichloroethene by permanganate; effects on porous medium hydraulic properties AN - 51167285; 2003-022048 AB - In-situ oxidation of dense nonaqueous-phase liquids (DNAPLs) by strong oxidants such as potassium permanganate (KMnO (sub 4) ) has been proposed as a possible DNAPL remediation strategy. In this study, we investigated the effects of in-situ trichloroethene (TCE) oxidation by KMnO (sub 4) on porous medium hydraulic properties. In particular, we wanted to determine the overall effects of concurrent solid phase (MnO (sub 2) ) precipitation, gas (CO (sub 2) ) evolution and TCE dissolution resulting from the oxidation reaction on the porous medium's aqueous-phase relative permeability, k (sub rw) . Three TCE removal experiments were conducted in a 95-cm long, 5.1-cm i.d. glass column, which was homogeneously packed with well-characterized 30/40-mesh silica sand. TCE was emplaced in the sand-pack in residual, entrapped form through a sequence of water/TCE imbibition and drainage steps. The column was then flushed under constant aqueous flux conditions for up to 104 h with either deionized water (reference experiment), deionized water containing 5 mM KMnO (sub 4) or deionized water containing 5 mM KMnO (sub 4) and 300 mM Na (sub 2) HPO (sub 4) . Aqueous-phase relative permeabilities were computed from measured flow rates and measurements of aqueous-phase pressure head, h obtained using pressure transducers connected to tensiometers distributed along the column length. A dual-energy gamma radiation system was used to monitor changes in fluid saturation that occurred during each experiment. In addition, column effluent samples were collected for chemical analyses. Dissolution of TCE during deionized water flushing led to an increase in k (sub rw) by approximately 22% and a local reduction in h. On the other hand, vigorous CO (sub 2) gas production and precipitation of MnO (sub 2) was visually observed during flushing with deionized water that contained 5 mM KMnO (sub 4) . As a consequence, k (sub rw) declined by approximately 96% and h increased locally by more than 1000 cm H (sub 2) O during the first 24 h of the experiment, causing sand-pack ruptures and pump failure. Conversely, less CO (sub 2) gas production and MnO (sub 2) precipitation was visually observed during flushing with deionized water that contained 5 mM KMnO (sub 4) and 300 mM Na (sub 2) HPO (sub 4) . Consequently, only small increases in h (<15 cm H (sub 2) O) were observed in this experiment due to a reduction in k (sub rw) of approximately 53%. While we must attribute changes in h due to variations in k (sub rw) to our specific experimental design (constant aqueous flux, one-dimensional flow experiments), these experiments nevertheless confirm that successful application of in situ chemical oxidation of TCE requires consideration of detrimental processes such as MnO (sub 2) precipitation and CO (sub 2) gas formation. In addition, our results indicate that utilization of a buffered oxidant solution may improve the effectiveness of in-situ oxidation of TCE by KMnO (sub 4) in otherwise weakly buffered porous media. JF - Journal of Contaminant Hydrology AU - Schroth, M H AU - Oostrom, M AU - Wietsma, T W AU - Istok, J D Y1 - 2001/07// PY - 2001 DA - July 2001 SP - 79 EP - 98 PB - Elsevier, Amsterdam VL - 50 IS - 1-2 SN - 0169-7722, 0169-7722 KW - chlorinated hydrocarbons KW - one-dimensional models KW - trichloroethane KW - techniques KW - dense nonaqueous phase liquids KW - ground water KW - carbon dioxide KW - decontamination KW - halogenated hydrocarbons KW - experimental studies KW - monitoring KW - in situ KW - oxidation KW - effluents KW - pollution KW - potassium permanganate KW - porous materials KW - aquifers KW - nonaqueous phase liquids KW - organic compounds KW - saturation KW - tensiometers KW - hydraulic conductivity KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51167285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=In-situ+oxidation+of+trichloroethene+by+permanganate%3B+effects+on+porous+medium+hydraulic+properties&rft.au=Schroth%2C+M+H%3BOostrom%2C+M%3BWietsma%2C+T+W%3BIstok%2C+J+D&rft.aulast=Schroth&rft.aufirst=M&rft.date=2001-07-01&rft.volume=50&rft.issue=1-2&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2003-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; carbon dioxide; chlorinated hydrocarbons; decontamination; dense nonaqueous phase liquids; effluents; experimental studies; ground water; halogenated hydrocarbons; hydraulic conductivity; in situ; monitoring; nonaqueous phase liquids; one-dimensional models; organic compounds; oxidation; permeability; pollution; porous materials; potassium permanganate; saturation; techniques; tensiometers; trichloroethane ER - TY - JOUR T1 - Alkaliphilus transvaalensis gen. nov., sp. nov., an extremely alkaliphilic bacterium isolated from a deep South African gold mine AN - 17920041; 5165214 AB - A novel extreme alkaliphile was isolated from a mine water containment dam at 3.2 km below land surface in an ultra-deep gold mine near Carletonville, South Africa. The cells of this bacterium were straight to slightly curved rods, motile by flagella and formed endospores. Growth was observed over the temperature range 20-50 degrees C (optimum 40 degrees C; 45 min doubling time) and pH range 8.5-12.5 (optimum pH 10.0). The novel isolate, one of the most alkaliphilic micro-organisms yet described, was a strictly anaerobic chemo-organotroph capable of utilizing proteinaceous substrates such as yeast extract, peptone, tryptone and casein. Elemental sulfur, thiosulfate or fumarate, when included as accessory electron acceptors, improved growth. The G + C content of genomic DNA was 36.4 mol%. Phylogenetic analysis based on the 16S rDNA sequence indicated that the isolate is a member of cluster XI within the low G + C Gram-positive bacteria, but only distantly related to previously described members. On the basis of physiological and molecular properties, the isolate represents a novel species, for which the name Alkaliphilus transvaalensis gen. nov., sp. nov. is proposed (type strain SAGM1(T) = JCM 10712(T) = ATCC 700919(T)). The mechanism of generation of the highly alkaline microbial habitat and the possible source of the alkaliphile are discussed. JF - International Journal of Systematic and Evolutionary Microbiology AU - Takai, K AU - Moser, D P AU - Onstott, T C AU - Spoelstra, N AU - Pfiffner, S M AU - Dohnalkova, A AU - Fredrickson, J K AD - Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, USA Y1 - 2001/07// PY - 2001 DA - Jul 2001 SP - 1245 EP - 1256 PB - Society for General Microbiology VL - 51 IS - 4 SN - 1466-5026, 1466-5026 KW - South Africa KW - rRNA 16S KW - Microbiology Abstracts B: Bacteriology KW - Phylogeny KW - Temperature effects KW - Growth rate KW - Phenotyping KW - Alkaliphilus transvaalensis KW - Genotyping KW - Substrate specificity KW - Taxonomy KW - pH effects KW - J 02710:Identification, taxonomy and typing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17920041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Systematic+and+Evolutionary+Microbiology&rft.atitle=Alkaliphilus+transvaalensis+gen.+nov.%2C+sp.+nov.%2C+an+extremely+alkaliphilic+bacterium+isolated+from+a+deep+South+African+gold+mine&rft.au=Takai%2C+K%3BMoser%2C+D+P%3BOnstott%2C+T+C%3BSpoelstra%2C+N%3BPfiffner%2C+S+M%3BDohnalkova%2C+A%3BFredrickson%2C+J+K&rft.aulast=Takai&rft.aufirst=K&rft.date=2001-07-01&rft.volume=51&rft.issue=4&rft.spage=1245&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Systematic+and+Evolutionary+Microbiology&rft.issn=14665026&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Alkaliphilus transvaalensis; Phenotyping; Growth rate; Temperature effects; pH effects; Substrate specificity; Genotyping; Phylogeny; Taxonomy ER - TY - JOUR T1 - Kinetic Analysis of the Bacterial Reduction of Goethite AN - 18097258; 5170969 AB - The kinetics of dissimilatory reduction of goethite ( alpha -FeOOH) was studied in batch cultures of a groundwater bacterium, Shewanella putrefaciens, strain CN32 in pH 7 bicarbonate buffer. The rate and extent of goethite reduction were measured as a function of electron acceptor (goethite) and donor (lactate) concentrations. Increasing goethite concentrations increased both the rate and extent of Fe(III) reduction when cell and lactate concentrations were held constant. However, constant initial reduction rates were observed after normalization to the Fe(II) sorption capacity of FeOOH, suggesting that the becterial reduction rate was first order with respect to surface site concentration. Increasing the lactate concentration also increased the rate and extent of FeOOH reduction. Monod-type kinetic behavior was observed with respect to lactate concentration. Fe(II) sorption on FeOOH was well-described by the Langmuir sorption isotherm. However, the Fe(II) sorption capacities hyperbolically decreased with increasing FeOOH concentration (10-100 mM) implying aggregation, while the affinity constant between Fe(II) and goethite was constant (log K approximately 3). Evaluation of the end states of the variable FeOOH and lactate experiments when iron reduction ceased indicated a consistent excess in reaction free energy of -22.7 kJ/mol. This value was remarkably close to the minimum value reported for bacteria to mediate a given reaction (-20 kJ/mol). X-ray diffraction (XRD) and scanning electron microscopy (SEM) indicated that siderite (FeCO sub(3)) was the only biogenic Fe(II) solid formed upon FeOOH bioreduction. A kinetic biogeochemical model that incorporated Monod kinetics with respect to lactate concentration, first-order kinetics with respect to goethite surface concentration, a Gibbs free energy availability factor, the rates of Fe(II) sorption on goethite and siderite precipitation, and aqueous speciation reactions was applied to the experimental data. Using independently estimated parameters, the developed model successfully described bacterial goethite reduction with variable FeOOH and lactate concentrations. JF - Environmental Science & Technology AU - Liu, Chongxuan AU - Kota, S AU - Zachara, J M AU - Fredrickson, J K AU - Brinkman, C K AD - Pacific Northwest National Laboratory, P.O. Box 999, MS K8-96, Richland, WA 99352, USA, chongxuan.liu@pnl.gov Y1 - 2001/06/15/ PY - 2001 DA - 2001 Jun 15 SP - 2482 EP - 2490 VL - 35 IS - 12 SN - 0013-936X, 0013-936X KW - Bacteria KW - goethite KW - kinetics KW - siderophores KW - Microbiology Abstracts A: Industrial & Applied Microbiology; ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 1: Biological Sciences & Living Resources KW - Reduction KW - Mathematical models KW - Biodegradation KW - Kinetics KW - Lactic acid KW - Ground water KW - Iron compounds KW - Shewanella putrefaciens KW - Goethite KW - Q1 08206:Physiology, biochemistry, biophysics KW - A 01056:Mineral microbiology KW - Q5 08504:Effects on organisms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18097258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Kinetic+Analysis+of+the+Bacterial+Reduction+of+Goethite&rft.au=Liu%2C+Chongxuan%3BKota%2C+S%3BZachara%2C+J+M%3BFredrickson%2C+J+K%3BBrinkman%2C+C+K&rft.aulast=Liu&rft.aufirst=Chongxuan&rft.date=2001-06-15&rft.volume=35&rft.issue=12&rft.spage=2482&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Reduction; Biodegradation; Kinetics; Iron compounds; Ground water; Goethite; Mathematical models; Lactic acid; Bacteria; Shewanella putrefaciens ER - TY - JOUR T1 - Wide-area aquatic sampling and analysis for the detection of nuclear proliferation AN - 51983657; 2003-042817 JF - Journal of Radioanalytical and Nuclear Chemistry AU - Wogman, N A AU - Wigmosta, M S AU - Swindle, D W AU - Krey, P W Y1 - 2001/06// PY - 2001 DA - June 2001 SP - 611 EP - 615 PB - Kluwer Academic Publishers and Akademiai Kiado, Dordrecht - Budapest VL - 248 IS - 3 SN - 0236-5731, 0236-5731 KW - radioactive isotopes KW - monitoring KW - detection KW - sampling KW - isotopes KW - tracers KW - policy KW - nuclear facilities KW - military facilities KW - aquatic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51983657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.atitle=Wide-area+aquatic+sampling+and+analysis+for+the+detection+of+nuclear+proliferation&rft.au=Wogman%2C+N+A%3BWigmosta%2C+M+S%3BSwindle%2C+D+W%3BKrey%2C+P+W&rft.aulast=Wogman&rft.aufirst=N&rft.date=2001-06-01&rft.volume=248&rft.issue=3&rft.spage=611&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=02365731&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international conference on Methods and applications of radioanalytical chemistry N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 5 N1 - Document feature - illus. incl. table N1 - Last updated - 2013-09-20 N1 - CODEN - JRNCDM N1 - SubjectsTermNotLitGenreText - aquatic environment; detection; isotopes; military facilities; monitoring; nuclear facilities; policy; radioactive isotopes; sampling; tracers ER - TY - JOUR T1 - Screening of potential sites for undeclared nuclear facilities in environmental monitoring for nuclear proliferation AN - 51983247; 2003-042816 JF - Journal of Radioanalytical and Nuclear Chemistry AU - Swindle, D W, Jr AU - Pearson, R L AU - Wogman, N A AU - Krey, P W Y1 - 2001/06// PY - 2001 DA - June 2001 SP - 599 EP - 604 PB - Kluwer Academic Publishers and Akademiai Kiado, Dordrecht - Budapest VL - 248 IS - 3 SN - 0236-5731, 0236-5731 KW - monitoring KW - legislation KW - international cooperation KW - policy KW - nuclear facilities KW - military facilities KW - environmental analysis KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51983247?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.atitle=Screening+of+potential+sites+for+undeclared+nuclear+facilities+in+environmental+monitoring+for+nuclear+proliferation&rft.au=Swindle%2C+D+W%2C+Jr%3BPearson%2C+R+L%3BWogman%2C+N+A%3BKrey%2C+P+W&rft.aulast=Swindle&rft.aufirst=D&rft.date=2001-06-01&rft.volume=248&rft.issue=3&rft.spage=599&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=02365731&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international conference on Methods and applications of radioanalytical chemistry N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 2 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-09-20 N1 - CODEN - JRNCDM N1 - SubjectsTermNotLitGenreText - environmental analysis; international cooperation; legislation; military facilities; monitoring; nuclear facilities; policy ER - TY - JOUR T1 - Potential technology for studying dosimetry and response to airborne chemical and biological pollutants AN - 18658964; 5562023 AB - Advances in computational, and imaging techniques have enabled the rapid development of three-dimensional (3-D) models of biological systems in unprecedented detail. Using these advances, 3-D models of the lungs and nasal passages of the rat and human are being developed to ultimately improve predictions of airborne pollutant dosimetry. Techniques for imaging the respiratory tract by magnetic resonance imaging (MRI) were developed to improve the speed and accuracy of geometric data collection for mesh reconstruction. The MRI resolution is comparable to that obtained by manual measurements but at much greater speed and accuracy. Newly developed software (NWGrid) was utilized to translate imaging data from MR into 3-D mesh structures. Together, these approaches significantly reduced the time to develop a 3-D model. This more robust airway structure will ultimately facilitate modeling gas or vapor exchange between the respiratory tract and vasculature as well as enable linkages of dosimetry with cell response models. The 3-D, finite volume, viscoelastic mesh structures form the geometric basis for computational fluid dynamics modeling of inhalation, exhalation and the delivery of individual particles (or concentrations of gas or vapors) to discrete regions of the respiratory tract. The ability of these 3-D models to resolve dosimetry at such a high level of detail will require new techniques to measure regional airflows and particulate deposition for model validation. JF - Toxicology and Industrial Health AU - Timchalk, C AU - Trease, HE AU - Trease, L L AU - Minard, K R AU - Corley, R A AD - DABT, Pacific Northwest National Laboratory, MSIN: P7-59, 902 Battelle Boulevard, PO Box 999, Richland, WA 99352, USA, charles.timchalk@pnl.gov Y1 - 2001/06// PY - 2001 DA - Jun 2001 SP - 270 EP - 276 VL - 17 IS - 5-10 SN - 0748-2337, 0748-2337 KW - Health & Safety Science Abstracts; Pollution Abstracts; Toxicology Abstracts KW - H 12000:Epidemiology and Public Health KW - X 24221:Toxicity testing KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18658964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+and+Industrial+Health&rft.atitle=Potential+technology+for+studying+dosimetry+and+response+to+airborne+chemical+and+biological+pollutants&rft.au=Timchalk%2C+C%3BTrease%2C+HE%3BTrease%2C+L+L%3BMinard%2C+K+R%3BCorley%2C+R+A&rft.aulast=Timchalk&rft.aufirst=C&rft.date=2001-06-01&rft.volume=17&rft.issue=5-10&rft.spage=270&rft.isbn=&rft.btitle=&rft.title=Toxicology+and+Industrial+Health&rft.issn=07482337&rft_id=info:doi/10.1191%2F0748233701th114oa LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1191/0748233701th114oa ER - TY - JOUR T1 - The arginine finger of RasGAP helps Gln-61 align the nucleophilic water in GAP-stimulated hydrolysis of GTP. AN - 70865123; 11371635 AB - The Ras family of GTPases is a collection of molecular switches that link receptors on the plasma membrane to signaling pathways that regulate cell proliferation and differentiation. The accessory GTPase-activating proteins (GAPs) negatively regulate the cell signaling by increasing the slow intrinsic GTP to GDP hydrolysis rate of Ras. Mutants of Ras are found in 25-30% of human tumors. The most dramatic property of these mutants is their insensitivity to the negative regulatory action of GAPs. All known oncogenic mutants of Ras map to a small subset of amino acids. Gln-61 is particularly important because virtually all mutations of this residue eliminate sensitivity to GAPs. Despite its obvious importance for carcinogenesis, the role of Gln-61 in the GAP-stimulated GTPase activity of Ras has remained a mystery. Our molecular dynamics simulations of the p21ras-p120GAP-GTP complex suggest that the local structure around the catalytic region can be different from that revealed by the x-ray crystal structure. We find that the carbonyl oxygen on the backbone of the arginine finger supplied in trans by p120GAP (Arg-789) interacts with a water molecule in the active site that is forming a bridge between the NH(2) group of the Gln-61 and the gamma-phosphate of GTP. Thus, Arg-789 may play a dual role in generating the nucleophile as well as stabilizing the transition state for PO bond cleavage. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Resat, H AU - Straatsma, T P AU - Dixon, D A AU - Miller, J H AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. haluk.resat@pnl.gov Y1 - 2001/05/22/ PY - 2001 DA - 2001 May 22 SP - 6033 EP - 6038 VL - 98 IS - 11 SN - 0027-8424, 0027-8424 KW - p120 GTPase Activating Protein KW - 0 KW - Water KW - 059QF0KO0R KW - Glutamine KW - 0RH81L854J KW - Guanosine Triphosphate KW - 86-01-1 KW - Arginine KW - 94ZLA3W45F KW - Proto-Oncogene Proteins p21(ras) KW - EC 3.6.5.2 KW - Index Medicus KW - Water -- chemistry KW - Hydrolysis KW - Cluster Analysis KW - Binding Sites KW - Guanosine Triphosphate -- chemistry KW - Arginine -- chemistry KW - Proto-Oncogene Proteins p21(ras) -- chemistry KW - Glutamine -- chemistry KW - p120 GTPase Activating Protein -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70865123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=The+arginine+finger+of+RasGAP+helps+Gln-61+align+the+nucleophilic+water+in+GAP-stimulated+hydrolysis+of+GTP.&rft.au=Resat%2C+H%3BStraatsma%2C+T+P%3BDixon%2C+D+A%3BMiller%2C+J+H&rft.aulast=Resat&rft.aufirst=H&rft.date=2001-05-22&rft.volume=98&rft.issue=11&rft.spage=6033&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-07-19 N1 - Date created - 2001-05-24 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Cell. 1990 Aug 10;62(3):539-48 [2199064] EMBO J. 1990 Aug;9(8):2351-9 [2196171] Nature. 1991 Jan 10;349(6305):117-27 [1898771] Nature. 1991 Jun 13;351(6327):576-9 [1904555] Proc Natl Acad Sci U S A. 1992 Apr 15;89(8):3649-53 [1565661] Mol Cell Biol. 1992 May;12(5):2050-6 [1569940] Biochemistry. 1992 Jun 2;31(21):4951-9 [1599919] Biochemistry. 1992 Sep 22;31(37):8691-6 [1390653] Science. 1993 Feb 5;259(5096):806-9 [8430333] Annu Rev Biochem. 1993;62:851-91 [8352603] J Biol Chem. 1993 Dec 25;268(36):27012-9 [8262937] Biochemistry. 1994 Mar 22;33(11):3237-44 [8136358] J Mol Biol. 1994 May 6;238(3):415-36 [8176733] Science. 1994 Sep 2;265(5177):1405-12 [8073283] Cell Signal. 1994 Mar;6(3):247-67 [7917783] Nature. 1994 Nov 17;372(6503):276-9 [7969474] Nat Struct Biol. 1995 Jan;2(1):3-6 [7719851] Nat Struct Biol. 1995 Jan;2(1):36-44 [7719852] Nat Struct Biol. 1994 Jul;1(7):476-84 [7664067] Biochemistry. 1995 Sep 19;34(37):12038-47 [7547942] Science. 1996 Jul 5;273(5271):115-7 [8658179] Proc Natl Acad Sci U S A. 1996 Aug 6;93(16):8160-6 [8710841] FASEB J. 1996 Oct;10(12):1347-68 [8903506] Science. 1997 Jul 18;277(5324):333-8 [9219684] Nat Struct Biol. 1997 Sep;4(9):686-9 [9302992] Proc Natl Acad Sci U S A. 1997 Oct 28;94(22):11905-10 [9342335] Annu Rev Biochem. 1987;56:779-827 [3304147] Biochemistry. 2000 Aug 15;39(32):9641-51 [10933780] Structure. 2000 Dec 15;8(12):1279-87 [11188692] Science. 1987 Oct 23;238(4826):542-5 [2821624] Proc Natl Acad Sci U S A. 1988 Jul;85(14):5026-30 [3293047] Science. 1988 Dec 23;242(4886):1697-700 [3201259] Cancer Res. 1989 Sep 1;49(17):4682-9 [2547513] Nature. 1990 Nov 8;348(6297):125-32 [2122258] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Effective parameters for two-phase flow in a porous medium with periodic heterogeneities AN - 51188002; 2001-042817 AB - Computational simulations of two-phase flow in porous media are used to investigate the feasibility of replacing a porous medium containing heterogeneities with an equivalent homogeneous medium. Simulations are performed for the case of infiltration of a dense nonaqueous phase liquid (DNAPL) in a water-saturated, heterogeneous porous medium. For two specific porous media, with periodic and rather simple heterogeneity patterns, the existence of a representative elementary volume (REV) is studied. Upscaled intrinsic permeabilities and upscaled nonlinear constitutive relationships for two-phase flow systems are numerically calculated and the effects of heterogeneities are evaluated. Upscaled capillary pressure-saturation curves for drainage are found to be distinctly different from the lower-scale curves for individual regions of heterogeneity. Irreducible water saturation for the homogenized medium is found to be much larger than the corresponding lower-scale values. Numerical simulations for both heterogeneous and homogeneous representations of the considered porous media are carried out. Although the homogenized model simulates the spreading behavior of DNAPL reasonably well, it still fails to match completely the results form the heterogeneous simulations. This seems to be due, in part, to the nonlinearities inherent to multiphase flow systems. Although we have focussed on a periodic heterogeneous medium in this study, our methodology is applicable to other forms of heterogeneous media. In particular, the procedure for identification of a REV, and associated upscaled constitutive relations, can be used for randomly heterogeneous or layered media as well. JF - Journal of Contaminant Hydrology AU - Ataie-Ashtiani, B AU - Hassanizadeh, S M AU - Oostrom, M AU - Celia, M A AU - White, M D Y1 - 2001/05// PY - 2001 DA - May 2001 SP - 87 EP - 109 PB - Elsevier, Amsterdam VL - 49 IS - 1-2 SN - 0169-7722, 0169-7722 KW - numerical models KW - capillary pressure KW - drainage KW - data processing KW - pollution KW - porous materials KW - capillarity KW - dense nonaqueous phase liquids KW - simulation KW - layered materials KW - boundary conditions KW - ground water KW - aquifers KW - nonaqueous phase liquids KW - computer programs KW - saturation KW - infiltration KW - multiphase flow KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51188002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Effective+parameters+for+two-phase+flow+in+a+porous+medium+with+periodic+heterogeneities&rft.au=Ataie-Ashtiani%2C+B%3BHassanizadeh%2C+S+M%3BOostrom%2C+M%3BCelia%2C+M+A%3BWhite%2C+M+D&rft.aulast=Ataie-Ashtiani&rft.aufirst=B&rft.date=2001-05-01&rft.volume=49&rft.issue=1-2&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; boundary conditions; capillarity; capillary pressure; computer programs; data processing; dense nonaqueous phase liquids; drainage; ground water; infiltration; layered materials; multiphase flow; nonaqueous phase liquids; numerical models; permeability; pollution; porous materials; saturation; simulation ER - TY - JOUR T1 - Global and regional anthropogenic sulfur dioxide emissions AN - 19935506; 5278720 AB - We present a new inventory of global sulfur dioxide emissions from anthropogenic activities for the years 1980-2000. Emissions were estimated in 11 world regions using country-level emissions inventories and regional fossil fuel sulfur content information. Estimated global emissions in 1990 are 72 TgS with an estimated uncertainty of plus or minus 8% due to random errors with additional systematic errors that suggest that true emissions may be higher than this central value. We estimate that 56% of 1990 world emissions are from coal, 24% from oil, 15% from industrial processes and 3% from biomass burning. When our results are compared with other studies, they are similar at the global-mean level, but show marked differences at the regional level. Globally, emissions have been roughly constant from 1980 to the present. However, a significant shift has occurred in the spatial distribution of emissions. While 60% of global emissions in 1980 were from around the North Atlantic basin, this region contributed less than 40% of the global total by 1995 and will contribute even less in the future. Currently, based on our estimates, the centrally planned Asia (CPA) region, dominated by China, is the largest contributor to global sulfur dioxide emissions. A gridded data set for 1990 emissions is also produced, including a consistent seasonal cycle and a stratification of emissions into low and elevated releases. Implications for climate modeling and detection studies are discussed. JF - Global and Planetary Change AU - Smith, S J AU - Pitcher, H AU - Wigley, TML AD - Pacific Northwest National Laboratory (PNNL), 901 D Street, SW, Suite 900, Washington, DC 20024, USA, ssmith@pnl.gov Y1 - 2001/05// PY - 2001 DA - May 2001 SP - 99 EP - 119 VL - 29 IS - 1-2 SN - 0921-8181, 0921-8181 KW - fossil fuels KW - Sustainability Science Abstracts; Oceanic Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Human Population; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Historical account KW - Sulphur dioxide KW - Combustion products KW - Fuels KW - Climatic changes KW - Coal KW - Freshwater KW - Human impact KW - Models KW - Sulphur compounds KW - Oil KW - Emission inventories KW - Sulfur dioxide KW - Industrial wastes KW - Trans-boundary pollution KW - Asia KW - Industrial pollution KW - Seasonal variations KW - Environmental monitoring KW - Marine KW - Fossil fuels KW - Brackish KW - Biomass KW - Air pollution KW - Atmospheric chemistry KW - China, People's Rep. KW - Human factors KW - Regional variations KW - Q5 08503:Characteristics, behavior and fate KW - M1 230:Human Population-Atmosphere Interactions KW - Q2 09188:Atmospheric chemistry KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - O 4060:Pollution - Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19935506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+and+Planetary+Change&rft.atitle=Global+and+regional+anthropogenic+sulfur+dioxide+emissions&rft.au=Smith%2C+S+J%3BPitcher%2C+H%3BWigley%2C+TML&rft.aulast=Smith&rft.aufirst=S&rft.date=2001-05-01&rft.volume=29&rft.issue=1-2&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Global+and+Planetary+Change&rft.issn=09218181&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2002-01-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Oil; Air pollution; Sulphur dioxide; Industrial wastes; Fossil fuels; Climatic changes; Atmospheric chemistry; Coal; Biomass; Regional variations; Sulphur compounds; Environmental monitoring; Fuels; Industrial pollution; Models; Human impact; Historical account; Emission inventories; Sulfur dioxide; Trans-boundary pollution; Combustion products; Human factors; Seasonal variations; China, People's Rep.; Asia; Freshwater; Brackish; Marine ER - TY - JOUR T1 - Testing a blowing snow model against distributed snow measurements at Upper Sheep Creek, Idaho, United States of America AN - 18081924; 5171499 AB - In this paper a physically based snow transport model (SnowTran-3D) was used to simulate snow drifting over a 30 m grid and was compared to detailed snow water equivalence (SWE) surveys on three dates within a small 0.25 km super(2) subwatershed, Upper Sheep Creek. Two precipitation scenarios and two vegetation scenarios were used to carry out four snow transport model runs in order to (1) evaluate the blowing snow model, (2) evaluate the sensitivity of the snow transport model to precipitation and vegetation inputs, and (3) evaluate the linearity of snow accumulation patterns and the utility of the drift factor concept in distributed snow modeling. Spatial comparison methods consisted of (1) pointwise comparisons of measured and modeled SWE, (2) visual comparisons of the spatial maps, (3) comparisons of the basin-wide average SWE, (4) comparisons of zonal average SWE in accumulation and scour zones, and (5) comparisons of distribution functions. We found that the basin average modeled SWE was in reasonable agreement with observations and that visually the spatial pattern of snow accumulation was well represented except for a pattern shift. Pointwise comparisons between the modeled and observed SWE maps displayed significant errors. The distribution functions of SnowTran-3D-modeled drift factors from two precipitation scenarios on three dates were compared with the distribution function of observation-based drift factors obtained previously by calibration to evaluate the assumption of linearity. We found only a 14% reduction in explained variance in the distribution function of drift factors for a 69% increase in precipitation, suggesting that the simplification provided by the use of drift factor distributions will result in errors that are tolerable in many cases. JF - Water Resources Research AU - Prasad, R AU - Tarboton, D G AU - Liston, GE AU - Luce, CH AU - Seyfried AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2001/05// PY - 2001 DA - May 2001 SP - 1341 EP - 1350 VL - 37 IS - 5 SN - 0043-1397, 0043-1397 KW - USA, Idaho KW - Water Resources Abstracts; Aqualine Abstracts KW - Precipitation (Atmospheric) KW - Instrumentation KW - Water resources KW - Vegetation KW - Model Testing KW - Spatial Distribution KW - Snow cover KW - Model Studies KW - Sensitivity Analysis KW - Performance Evaluation KW - Snow-Water Equivalent KW - Snow Accumulation KW - Blowing Snow KW - Drifting Snow KW - Data Collections KW - AQ 00003:Monitoring and Analysis of Water and Wastes KW - SW 0820:Snow, ice and frost UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18081924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Testing+a+blowing+snow+model+against+distributed+snow+measurements+at+Upper+Sheep+Creek%2C+Idaho%2C+United+States+of+America&rft.au=Prasad%2C+R%3BTarboton%2C+D+G%3BListon%2C+GE%3BLuce%2C+CH%3BSeyfried&rft.aulast=Prasad&rft.aufirst=R&rft.date=2001-05-01&rft.volume=37&rft.issue=5&rft.spage=1341&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Instrumentation; Precipitation (Atmospheric); Vegetation; Water resources; Snow cover; Sensitivity Analysis; Performance Evaluation; Snow-Water Equivalent; Snow Accumulation; Model Testing; Spatial Distribution; Data Collections; Model Studies; Drifting Snow; Blowing Snow ER - TY - JOUR T1 - Development of an Integrated Microanalytical System for Analysis of Lead in Saliva and Linkage to a Physiologically Based Pharmacokinetic Model Describing Lead Saliva Secretion AN - 17927190; 5160009 AB - There is a need to develop reliable portable analytical systems for biomonitoring lead (Pb) in noninvasively collected saliva samples. In addition, appropriate pharmacokinetic analyses are used to quantitate systemic dosimetry based on the saliva Pb concentrations. A portable microfluidics/electrochemical device was developed for the rapid analysis of Pb based on square wave anodic stripping voltammetry, in which a saliva sample flows over an electrode surface, Pb super(2+) is chemically reduced and accumulated, and the electric potential of the electrode scanned. The system demonstrates a good linear response over a broad Pb concentration range (1-2000 ppb). To evaluate the relationship between saliva and blood Pb, rats were treated with single oral doses ranging from 20 to 500 mg Pb/kg of body weight, and 24 hours later were administered pilocarpine, a muscarinic agonist to induce salivation. To correlate saliva levels with internal dose, blood and saliva were collected and quantitated for Pb by inductively coupled plasma-mass spectrometry (ICP-MS) and by the microanalytical system. The quantitation with the microanalytical system was slightly less ( similar to 75-85%) than with ICP-MS; however, the response was linear, with concentration suggesting that it can be used for the quantitation of salivary Pb. To facilitate modeling, a physiologically based pharmacokinetic (PBPK) model for Pb was modified to incorporate a salivary gland compartment. The model was capable of predicting blood and saliva Pb concentration based on a limited data set. These results are encouraging, suggesting that once fully developed the microanalytical system coupled with PBPK modeling can be used as important tools for real- time biomonitoring of Pb for both occupational and environmental exposures. JF - American Industrial Hygiene Association Journal AU - Timchalk, C AU - Poet, T S AU - Lin, Y AU - Weitz, K K AU - Zhao, Rui AU - Thrall, K D AD - Pacific Northwest National Laboratory, 902 Battelle Blvd, P.O. Box 999, Richland, WA 99352, USA, charles.timchalk@pnl.gov Y1 - 2001/05// PY - 2001 DA - May 2001 SP - 295 EP - 302 VL - 62 IS - 3 SN - 0002-8894, 0002-8894 KW - pharmacokinetics KW - rats KW - pilocarpine KW - Toxicology Abstracts KW - Blood KW - Pollution monitoring KW - Saliva KW - Lead KW - Models KW - X 24222:Analytical procedures KW - X 24163:Metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17927190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Industrial+Hygiene+Association+Journal&rft.atitle=Development+of+an+Integrated+Microanalytical+System+for+Analysis+of+Lead+in+Saliva+and+Linkage+to+a+Physiologically+Based+Pharmacokinetic+Model+Describing+Lead+Saliva+Secretion&rft.au=Timchalk%2C+C%3BPoet%2C+T+S%3BLin%2C+Y%3BWeitz%2C+K+K%3BZhao%2C+Rui%3BThrall%2C+K+D&rft.aulast=Timchalk&rft.aufirst=C&rft.date=2001-05-01&rft.volume=62&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=American+Industrial+Hygiene+Association+Journal&rft.issn=00028894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Models; Lead; Saliva; Pollution monitoring; Blood ER - TY - JOUR T1 - Can pollution problems be effectively solved by environmental science and technology? An analysis of critical limitations AN - 17886521; 5137637 AB - It is currently believed that science and technology can provide effective solutions to most, if not all, environmental problems facing western industrial societies. The validity of this optimistic assumption is highly questionable for at least three reasons: First, current mechanistic, reductionist science is inherently incapable of providing the complete and accurate information which is required to successfully address environmental problems. Second, both the conservation of mass principle and the second law of thermodynamics dictate that most remediation technologies -- while successful in solving specific pollution problems -- cause unavoidable negative environmental impacts elsewhere or in the future. Third, it is intrinsically impossible to design industrial processes that have no negative environmental impacts. This follows not only from the entropy law but also from the fact that any generation of energy is impossible without negative environmental consequences. It can therefore be concluded that science and technology have only very limited potential in solving current and future environmental problems. Consequently, it will be necessary to address the root cause of environmental deterioration, namely, the prevailing materialistic values that are the main driving force for both overpopulation and overconsumption. The long-term protection of the environment is, therefore, not primarily a technical problem but rather a social and moral problem that can only be solved by drastically reducing the strong influence of materialistic values. JF - Ecological Economics AU - Huesemann, M H AD - Marine Sciences Laboratory, Pacific Northwest National Laboratory, 1529 West Sequim Bay Road, Sequim, WA 98382, USA, michael.huesemann@pnl.gov Y1 - 2001/05// PY - 2001 DA - May 2001 SP - 271 EP - 287 VL - 37 IS - 2 SN - 0921-8009, 0921-8009 KW - Pollution Abstracts KW - Socioeconomics KW - Population dynamics KW - Environmental protection KW - Remediation KW - Pollution control KW - Technology KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17886521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Economics&rft.atitle=Can+pollution+problems+be+effectively+solved+by+environmental+science+and+technology%3F+An+analysis+of+critical+limitations&rft.au=Huesemann%2C+M+H&rft.aulast=Huesemann&rft.aufirst=M&rft.date=2001-05-01&rft.volume=37&rft.issue=2&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Ecological+Economics&rft.issn=09218009&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Population dynamics; Socioeconomics; Technology; Pollution control; Remediation; Environmental protection ER - TY - JOUR T1 - Multicomponent reactive transport in an in situ zero-valent iron cell. AN - 70846303; 11348093 AB - Data collected from a field study of in situ zero-valent iron treatment for TCE were analyzed in the context of coupled transport and reaction processes. The focus of this analysis was to understand the behavior of chemical components, including contaminants, in groundwater transported through the iron cell of a pilot-scale funnel and gate treatment system. A multicomponent reactive transport simulator was used to simultaneously model mobile and nonmobile components undergoing equilibrium and kinetic reactions including TCE degradation, parallel iron dissolution reactions, precipitation of secondary minerals, and complexation reactions. The resulting mechanistic model of coupled processes reproduced solution chemistry behavior observed in the iron cell with a minimum of calibration. These observations included the destruction of TCE and cis-1,2-DCE; increases in pH and hydrocarbons; and decreases in EH, alkalinity, dissolved O2 and CO2, and major ions (i.e., Ca, Mg, Cl, sulfate, nitrate). Mineral precipitation in the iron zone was critical to correctly predicting these behaviors. The dominant precipitation products were ferrous hydroxide, siderite, aragonite, brucite, and iron sulfide. In the first few centimeters of the reactive iron cell, these precipitation products are predicted to account for a 3% increase in mineral volume per year, which could have implications for the longevity of favorable barrier hydraulics and reactivity. The inclusion of transport was key to understanding the interplay between rates of transport and rates of reaction in the field. JF - Environmental science & technology AU - Yabusaki, S AU - Cantrell, K AU - Sass, B AU - Steefel, C AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. yabusaki@pnl.gov Y1 - 2001/04/01/ PY - 2001 DA - 2001 Apr 01 SP - 1493 EP - 1503 VL - 35 IS - 7 SN - 0013-936X, 0013-936X KW - Carcinogens KW - 0 KW - Soil Pollutants KW - Iron KW - E1UOL152H7 KW - Tetrachloroethylene KW - TJ904HH8SN KW - Index Medicus KW - Hydrogen-Ion Concentration KW - Chemical Precipitation KW - Carcinogens -- chemistry KW - Tetrachloroethylene -- chemistry KW - Iron -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70846303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Multicomponent+reactive+transport+in+an+in+situ+zero-valent+iron+cell.&rft.au=Yabusaki%2C+S%3BCantrell%2C+K%3BSass%2C+B%3BSteefel%2C+C&rft.aulast=Yabusaki&rft.aufirst=S&rft.date=2001-04-01&rft.volume=35&rft.issue=7&rft.spage=1493&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-08-02 N1 - Date created - 2001-05-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Microbial reduction of Fe(III) and sorption/precipitation of Fe(II) on Shewanella putrefaciens strain CN32. AN - 70839770; 11348071 AB - The influence of Fe(II) on the dissimilatory bacterial reduction of an Fe(III) aqueous complex (Fe(III)-citrate(aq)) was investigated using Shewanella putrefaciens strain CN32. The sorption of Fe(II) on CN32 followed a Langmuir isotherm. Least-squares fitting gave a maximum sorption capacity of Qmax = 4.19 x 10(-3) mol/10(12) cells (1.19 mmol/m2 of cell surface area) and an affinity coefficient of log K = 3.29. The growth yield of CN32 with respect to Fe(III)aq reduction showed a linear trend with an average value of 5.24 (+/-0.12) x 10(9) cells/mmol of Fe(III). The reduction of Fe(III)aq by CN32 was described by Monod kinetics with respect to the electron acceptor concentration, Fe(III)aq, with a half-saturation constant (Ks) of 29 (+/-3) mM and maximum growth rate (micromax) of 0.32 (+/-0.02) h(-1). However, the pretreatment of CN32 with Fe(II)aq significantly inhibited the reduction of Fe(III)aq, resulting in a lag phase of about 3-30 h depending on initial cell concentrations. Lower initial cell concentration led to longer lag phase duration, and higher cell concentration led to a shorter one. Transmission electron microscopy and energy dispersive spectroscopy revealed that many cells carried surface precipitates of Fe mineral phases (valence unspecified) during the lag phase. These precipitates disappeared after the cells recovered from the lag phase. The cell inhibition and recovery mechanisms from Fe(II)-induced mineral precipitation were not identified by this study, but several alternatives were discussed. A modified Monod model incorporating a lag phase, Fe(II) adsorption, and aqueous complexation reactions was able to describe the experimental results of microbial Fe(III)aq reduction and cell growth when cells were pretreated with Fe(II)aq. JF - Environmental science & technology AU - Liu, C AU - Zachara, J M AU - Gorby, Y A AU - Szecsody, J E AU - Brown, C F AD - Pacific Northwest National Laboratory, Richland, Washington 99352, USA. chongxuan.liu@pnl.gov Y1 - 2001/04/01/ PY - 2001 DA - 2001 Apr 01 SP - 1385 EP - 1393 VL - 35 IS - 7 SN - 0013-936X, 0013-936X KW - Ferric Compounds KW - 0 KW - Ferrous Compounds KW - Index Medicus KW - Oxidation-Reduction KW - Waste Disposal, Fluid KW - Chemical Precipitation KW - Adsorption KW - Microscopy, Electron KW - Biodegradation, Environmental KW - Ferric Compounds -- metabolism KW - Shewanella putrefaciens -- metabolism KW - Ferrous Compounds -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70839770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Microbial+reduction+of+Fe%28III%29+and+sorption%2Fprecipitation+of+Fe%28II%29+on+Shewanella+putrefaciens+strain+CN32.&rft.au=Liu%2C+C%3BZachara%2C+J+M%3BGorby%2C+Y+A%3BSzecsody%2C+J+E%3BBrown%2C+C+F&rft.aulast=Liu&rft.aufirst=C&rft.date=2001-04-01&rft.volume=35&rft.issue=7&rft.spage=1385&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-08-02 N1 - Date created - 2001-05-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - CONF T1 - The virtual body workshop: current and future application of human biology models in environmental health research. AN - 70815718; 11335192 JF - Environmental health perspectives AU - Timchalk, C AU - Walker, N J AU - Mann, R C AU - Metting, F B Y1 - 2001/04// PY - 2001 DA - April 2001 SP - 421 EP - 423 VL - 109 IS - 4 KW - Environmental Pollutants KW - 0 KW - Index Medicus KW - Humans KW - Research -- trends KW - Environmental Pollutants -- adverse effects KW - Environmental Health KW - User-Computer Interface KW - Models, Biological UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70815718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Environmental+health+perspectives&rft.atitle=The+virtual+body+workshop%3A+current+and+future+application+of+human+biology+models+in+environmental+health+research.&rft.au=Timchalk%2C+C%3BWalker%2C+N+J%3BMann%2C+R+C%3BMetting%2C+F+B&rft.aulast=Timchalk&rft.aufirst=C&rft.date=2001-04-01&rft.volume=109&rft.issue=4&rft.spage=421&rft.isbn=&rft.btitle=&rft.title=Environmental+health+perspectives&rft.issn=00916765&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2002-01-23 N1 - Date created - 2001-05-03 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Application of regularized discrimination analysis to regional seismic event identification AN - 51120777; 2006-009550 JF - Seismological Research Letters AU - Anderson, D N AU - Taylor, S R AU - Anonymous Y1 - 2001/04// PY - 2001 DA - April 2001 SP - 230 PB - Seismological Society of America, El Cerrito, CA VL - 72 IS - 2 SN - 0895-0695, 0895-0695 KW - regularized discrimination analysis KW - errors KW - seismicity KW - identification KW - correlation KW - calibration KW - ridge discrimination KW - earthquakes KW - measurement KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51120777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Seismological+Research+Letters&rft.atitle=Application+of+regularized+discrimination+analysis+to+regional+seismic+event+identification&rft.au=Anderson%2C+D+N%3BTaylor%2C+S+R%3BAnonymous&rft.aulast=Anderson&rft.aufirst=D&rft.date=2001-04-01&rft.volume=72&rft.issue=2&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Seismological+Research+Letters&rft.issn=08950695&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - SSA 2001 96th annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - CA N1 - Last updated - 2012-06-07 N1 - CODEN - EAQNAT N1 - SubjectsTermNotLitGenreText - calibration; correlation; earthquakes; errors; identification; measurement; regularized discrimination analysis; ridge discrimination; seismicity ER - TY - JOUR T1 - Use of Quantitative Models to Design Microbial Transport Experiments in a Sandy Aquifer AN - 17849775; 4875137 AB - A suite of numerical models was applied to the problem of designing field tracer and bacterial injection experiments in a sandy surficial aquifer near Oyster, Virginia. The models were constructed based on the integration of diverse characterization data including hydrologic, geophysical, geological, geochemical, and biological information. A one-dimensional particle-tracking model was used to analyze laboratory transport experiments conducted using intact core samples to prescribe transport parameters describing solute dispersion and bacterial fate. A geostatistical model of three-dimensional hydraulic conductivity variations was developed, conditioned on in situ measurements of hydraulic conductivity and interpretations of geophysical data, and used to generate alternative aquifer descriptions. A regional-scale, two-dimensional flow model was used to design pumping rates of a forced-gradient hydraulic control system. Information from these various models was then combined into a high-resolution, three-dimensional flow and transport model for the prediction of field-scale solute and bacterial transport. Model predictions were used in an iterative experimental design process to specify: (1) the locations of multilevel samplers for monitoring transport; (2) frequency and timing of sample collection during bromide tracer injection experiments; and (3) frequency and timing of sample collection during a bacterial injection experiment. At each stage of the design, information gained during the previous stage was used to refine the model and target subsequent experimentation. JF - Ground Water AU - Scheibe, T D AU - Chien, Y-J AU - Radtke, J S AD - Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA Y1 - 2001/04// PY - 2001 DA - Apr 2001 SP - 210 EP - 222 VL - 39 IS - 2 SN - 0017-467X, 0017-467X KW - USA, Virginia KW - Water Resources Abstracts; Aqualine Abstracts KW - Aquifers KW - Micro-organisms KW - Bacteria KW - Conductance KW - Tracing techniques KW - Permeability Coefficient KW - Tracers KW - Solutes KW - Solute Transport KW - Microorganisms KW - Groundwater (see also Aquifers) KW - Groundwater KW - Tracking Techniques KW - AQ 00001:Water Resources and Supplies KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17849775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Use+of+Quantitative+Models+to+Design+Microbial+Transport+Experiments+in+a+Sandy+Aquifer&rft.au=Scheibe%2C+T+D%3BChien%2C+Y-J%3BRadtke%2C+J+S&rft.aulast=Scheibe&rft.aufirst=T&rft.date=2001-04-01&rft.volume=39&rft.issue=2&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Aquifers; Bacteria; Solutes; Tracers; Micro-organisms; Conductance; Groundwater (see also Aquifers); Tracing techniques; Solute Transport; Microorganisms; Groundwater; Permeability Coefficient; Tracking Techniques ER - TY - JOUR T1 - Structures and energies of AlOOH and FeOOH polymorphs from plane wave pseudopotential calculations AN - 52229803; 2001-039400 AB - Plane wave pseudopotential methods are used to investigate the structures and total energies of AlOOH and FeOOH in the five canonical oxyhydroxide structures: diaspore (goethite), boehmite (lepidocrocite), akaganeite, guyanaite, and grimaldiite. The local density approximation was used in conjunction with ultrasoft pseudopotentials in full optimizations of both AlOOH and FeOOH in each of these structures. Structures are in reasonably good agreement with experiment, with lattice parameters and bond lengths within 3% of experimental values. Neither AlOOH nor FeOOH have been identified in the grimaldiite or guyanaite structures, however we find that total energies for AlOOH and FeOOH in these structures are comparable to or lower than the total energies of the commonly observed polymorphs (with the exception of FeOOH in the grimaldiite structure, which is anomalously high energy). Estimated zero-point energy corrections do not alter this result. For diaspore and boehmite, we also provide calculations using the generalized gradient approximation and norm-conserving pseudopotentials to assess the extent to which the results depend on the particular level of theory used. We find that diaspore is predicted to have a lower energy, consistent with experimental observation, using all but one methodological combination where the generalized gradient approximation is combined with ultrasoft pseudopotentials. Thus, although one may reasonably conclude that the differences in total energies of the various (Al,Fe)oxyhydroxide polymorphs are small, current electronic structure methods do not appear to be fully capable of accurately resolving these small differences. These findings provide further confirmation that the structures of oxyhydroxide polymorphs and surface precipitates are more likely to be a function of kinetics than of intrinsic lattice stability. JF - American Mineralogist AU - Rosso, Kevin M AU - Rustad, James R Y1 - 2001/03// PY - 2001 DA - March 2001 SP - 312 EP - 317 PB - Mineralogical Society of America, Washington, DC VL - 86 IS - 3 SN - 0003-004X, 0003-004X KW - boehmite KW - polymorphism KW - guyanaite KW - goethite KW - akaganeite KW - grimaldiite KW - lepidocrocite KW - diaspore KW - oxides KW - free energy KW - crystal structure KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52229803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Structures+and+energies+of+AlOOH+and+FeOOH+polymorphs+from+plane+wave+pseudopotential+calculations&rft.au=Rosso%2C+Kevin+M%3BRustad%2C+James+R&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2001-03-01&rft.volume=86&rft.issue=3&rft.spage=312&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/ L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - akaganeite; boehmite; crystal structure; diaspore; free energy; goethite; grimaldiite; guyanaite; lepidocrocite; oxides; polymorphism ER - TY - JOUR T1 - Applications of percolation theory to porous media with distributed local conductances AN - 52056494; 2002-076264 JF - Advances in Water Resources AU - Hunt, A G A2 - Blunt, Martin J. A2 - Hilpert, Markus Y1 - 2001/03// PY - 2001 DA - March 2001 SP - 279 EP - 307 PB - Elsevier, Oxford VL - 24 IS - 3-4 SN - 0309-1708, 0309-1708 KW - electrical conductivity KW - capillary pressure KW - tortuosity KW - porous materials KW - preferential flow KW - porosity KW - ground water KW - heterogeneous materials KW - viscosity KW - percolation KW - applications KW - hydraulic conductivity KW - heterogeneity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52056494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Applications+of+percolation+theory+to+porous+media+with+distributed+local+conductances&rft.au=Hunt%2C+A+G&rft.aulast=Hunt&rft.aufirst=A&rft.date=2001-03-01&rft.volume=24&rft.issue=3-4&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 61 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - applications; capillary pressure; electrical conductivity; ground water; heterogeneity; heterogeneous materials; hydraulic conductivity; percolation; porosity; porous materials; preferential flow; tortuosity; viscosity ER - TY - JOUR T1 - Biotransformation of Ni-substituted hydrous ferric oxide by an Fe(III)-reducing bacterium. AN - 70839241; 11349281 AB - The reductive biotransformation of a Ni(2+)-substituted (5 mol %) hydrous ferric oxide (NiHFO) by Shewanella putrefaciens, strain CN32, was investigated under anoxic conditions at circumneutral pH. Our objectives were to define the influence of Ni2+ substitution on the bioreducibility of the HFO and the biomineralization products formed and to identify biogeochemical factors controlling the phase distribution of Ni2+ during bioreduction. Incubations with CN32 and NiHFO were sampled after 14 and 32 d, and both aqueous chemistry and solid phases were characterized. By comparison of these results with a previous study (Fredrickson, J. K.; Zachara, J. M.; Kennedy, D. W.; Dong, H.; Onstott, T. C.; Hinman, N. W.; Li, S. W. Geochim. Cosmochim. Acta 1998, 62, 3239-3257), it was concluded that coprecipitated/sorbed Ni2+ inhibited the bioreduction of HFO through an undefined chemical mechanism. Mössbauer spectroscopy allowed analysis of the residual HFO phase and the identity and approximate mass percent of biogenic mineral phases. The presence of AQDS, a soluble electron shuttle that obviates need for cell--oxide contact, was found to counteract the inhibiting effect of Ni2+. Nickel was generally mobilized during bioreduction in a trend that correlated with final pH, except in cases where PO4(3-) was present and vivianite precipitation occurred. CN32 promoted the formation of Ni(2+)-substituted magnetite (Fe2IIIFe(1-x)IINixIIO4) in media with AQDS but without PO4(3-). The formation of this biogenic coprecipitate, however, had little discernible impact on final aqueous Ni2+ concentrations. These results demonstrate that coprecipitated Ni can inhibit dissimilatory microbial reduction of amorphous iron oxide, but the presence of humic acids may facilitate the immobilization of Ni within the crystal structure of biogenic magnetite. JF - Environmental science & technology AU - Fredrickson, J K AU - Zachara, J M AU - Kukkadapu, R K AU - Gorby, Y A AU - Smith, S C AU - Brown, C F AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN P7-50, Richland, Washington 99352, USA. jim.fredrickson@pnl.gov Y1 - 2001/02/15/ PY - 2001 DA - 2001 Feb 15 SP - 703 EP - 712 VL - 35 IS - 4 SN - 0013-936X, 0013-936X KW - Ferric Compounds KW - 0 KW - Humic Substances KW - Water Pollutants, Chemical KW - ferric oxide KW - 1K09F3G675 KW - Nickel KW - 7OV03QG267 KW - Index Medicus KW - Biotransformation KW - Hypoxia KW - Humic Substances -- metabolism KW - Water Pollutants, Chemical -- metabolism KW - Ferric Compounds -- metabolism KW - Shewanella putrefaciens -- physiology KW - Nickel -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70839241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Biotransformation+of+Ni-substituted+hydrous+ferric+oxide+by+an+Fe%28III%29-reducing+bacterium.&rft.au=Fredrickson%2C+J+K%3BZachara%2C+J+M%3BKukkadapu%2C+R+K%3BGorby%2C+Y+A%3BSmith%2C+S+C%3BBrown%2C+C+F&rft.aulast=Fredrickson&rft.aufirst=J&rft.date=2001-02-15&rft.volume=35&rft.issue=4&rft.spage=703&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-05-31 N1 - Date created - 2001-05-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Mobility of the active site bound paraoxon and sarin in zinc-phosphotriesterase by molecular dynamics simulation and quantum chemical calculation. AN - 71024568; 11456615 AB - The kinetic data published on phosphotriesterase (PTE), with various complexed metals, clearly indicates that the P=O and P=S bonds of phosphotriester and thiophosphotriester substrates, respectively, are strongly polarized by one or both of the active site complexed metal ions. However, this observation is not consistent with the three-dimensional X-ray crystal structure of zinc-substituted PTE with active site bound substrate analogue diethyl 4-methylbenzylphosphonate. In this structure, the distance between the phosphoryl oxygen and the nearest zinc is 3.4 A, a distance too large to afford strong polarization. In the present paper, the geometry and mobility of various PTE active site-substrate complexes are examined by performing both molecular dynamics (MD) simulations and quantum mechanical calculations. Two known substrates are considered, paraoxon and sarin, although their turnover rates vary about 100-fold. The results indicate that PTE forms a complex with either substrate in which the phosphoryl oxygen becomes strongly coordinated with the less buried zinc atom. It is shown that the geometry of the active site is changed when the protein is immersed in a water bath and relaxed by MD. The most substantial conformational change is the opening of the gateway in a pocket where the location of the leaving group is expected. The opening is observed for the pure enzyme as well as for the enzyme/substrate complexes and it ranges from 11 to 18 A. It is also shown that the pockets, in which the substrate substituents are localized, exhibit different flexibility and interact with the substrate with coordinated conformational adjustments. JF - Journal of the American Chemical Society AU - Koca, J AU - Zhan, C G AU - Rittenhouse, R C AU - Ornstein, R L AD - Contribution from the Pacific Northwest National Laboratory, Battelle-Northwest, Environmental Technology Division, Mailstop K2-21, Richland, Washington 99352, USA. Y1 - 2001/02/07/ PY - 2001 DA - 2001 Feb 07 SP - 817 EP - 826 VL - 123 IS - 5 SN - 0002-7863, 0002-7863 KW - Sarin KW - B4XG72QGFM KW - Esterases KW - EC 3.1.- KW - Aryldialkylphosphatase KW - EC 3.1.8.1 KW - Paraoxon KW - Q9CX8P80JW KW - Index Medicus KW - Crystallography, X-Ray KW - Binding Sites KW - Esterases -- metabolism KW - Esterases -- chemistry KW - Sarin -- metabolism KW - Paraoxon -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/71024568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Chemical+Society&rft.atitle=Mobility+of+the+active+site+bound+paraoxon+and+sarin+in+zinc-phosphotriesterase+by+molecular+dynamics+simulation+and+quantum+chemical+calculation.&rft.au=Koca%2C+J%3BZhan%2C+C+G%3BRittenhouse%2C+R+C%3BOrnstein%2C+R+L&rft.aulast=Koca&rft.aufirst=J&rft.date=2001-02-07&rft.volume=123&rft.issue=5&rft.spage=817&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Chemical+Society&rft.issn=00027863&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-08-09 N1 - Date created - 2001-07-17 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Microscopic effects of carbonate, manganese, and strontium ions on calcite dissolution AN - 52260676; 2001-021665 AB - Aqueous dissolution of the (104) surface of calcite was observed at pH near 9 by using an atomic force microscope equipped with a fluid cell. The influences of carbonate (CO (sub 3) (super 2-) ), strontium (Sr (super 2+) ), and manganese (Mn (super 2+) ) ion concentrations on the rates of step motion were measured. Carbonate ions were shown to have a step-specific effect on calcite dissolution. At low levels (<1 mu M) of CO (sub 3) (super 2-) , the retreat rate of the more structurally open [41] (sub +) steps was faster than the retreat rate of the structurally confined [41] (sub -) steps, leading to anisotropic dissolution. Increasing the CO (sub 3) (super 2-) level to as high as 900 mu M decreased the rate of retreat of both steps, but the [41] (sub +) step was slowed to a much greater extent changing the degree of dissolution anisotropy. This decrease in step velocity at high CO (sub 3) (super 2-) levels was attributed to a corresponding increase in the back reaction (i.e., precipitation) as the solution approached saturation with respect to calcite. Strontium cations were also shown to have a step-specific effect on calcite dissolution similar to that of CO (sub 3) (super 2-) . Manganese cations, on the other hand, slowed the rate of retreat of the [41] (sub -) step to a greater extent than Sr (super 2+) . The influence of impurity metal sorption on dissolution is examined in terms of sorption at kinks and the dissolution behavior is explained in terms of a terrace-ledge-kink site-blocking model. Evidence is given to support the hypothesis that ion-pairs formed in solution are the primary growth units for calcite. JF - Geochimica et Cosmochimica Acta AU - Lea, A S AU - Amonette, J E AU - Baer, D R AU - Liang, Y AU - Colton, N G Y1 - 2001/02// PY - 2001 DA - February 2001 SP - 369 EP - 379 PB - Pergamon, Oxford VL - 65 IS - 3 SN - 0016-7037, 0016-7037 KW - alkaline earth metals KW - sorption KW - experimental studies KW - carbonate ion KW - mineral-water interface KW - solution KW - manganese KW - ions KW - calcite KW - laboratory studies KW - atomic force microscopy data KW - chemical reactions KW - metals KW - geochemistry KW - carbonates KW - strontium KW - pH KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52260676?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Microscopic+effects+of+carbonate%2C+manganese%2C+and+strontium+ions+on+calcite+dissolution&rft.au=Lea%2C+A+S%3BAmonette%2C+J+E%3BBaer%2C+D+R%3BLiang%2C+Y%3BColton%2C+N+G&rft.aulast=Lea&rft.aufirst=A&rft.date=2001-02-01&rft.volume=65&rft.issue=3&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2800%2900531-7 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atomic force microscopy data; calcite; carbonate ion; carbonates; chemical reactions; experimental studies; geochemistry; ions; laboratory studies; manganese; metals; mineral-water interface; pH; solution; sorption; strontium DO - http://dx.doi.org/10.1016/S0016-7037(00)00531-7 ER - TY - JOUR T1 - Thermal and radiation stability of the hydrated salt minerals epsomite, mirabilite, and natron under Europa environmental conditions AN - 50082851; 2006-005754 AB - We report studies on the thermal and radiolytic stability of the hydrated salt minerals epsomite (MgSO (sub 4) .7H (sub 2) O), mirabilite (Na (sub 2) SO (sub 4) .10H (sub 2) O), and natron (Na (sub 2) CO (sub 3) .10H (sub 2) O) under the low-temperature and ultrahigh vacuum conditions characteristic of the surface of the Galilean satellite Europa. We prepared samples, ran temperature-programmed dehydration (TPD) profiles and irradiated the samples with electrons. The TPD profiles are fit using Arrhenius-type first-order desorption kinetics. This analysis yields activation energies of 0.90 + or - 0.10, 0.70 + or - 0.07, and 0.45 + or - 0.05 eV for removal of the hydration water for epsomite, natron, and mirabilite, respectively. A simple extrapolation indicates that at Europa surface temperatures (<130 K), epsomite should remain hydrated over geologic timescales ( approximately 10 (super 11) -10 (super 14) years), whereas natron and mirabilite may dehydrate appreciably in approximately 10 (super 8) and 10 (super 3) years, respectively. A small amount of SO (sub 2) was detected during and after 100 eV electron-beam irradiation of dehydrated epsomite and mirabilite samples, whereas products such as O (sub 2) remained below detection limits. The upper limit for the 100 eV electron-induced damage cross section of mirabilite and epsomite is approximately 10 (super -19) cm (super 2) . The overall radiolytic stability of these minerals is partially due to (1) the multiply charged nature of the sulfate anion, (2) the low probability of reversing the attractive Madelung (mostly the attractive electrostatic) potential via Auger decay, and (3) solid-state caging effects. Our laboratory results on the thermal and radiolytic stabilities of these salt minerals indicate that hydrated magnesium sulfate and perhaps other salts could exist for geologic timescales on the surface of Europa. Copyright 2001 by the American Geophysical Union. JF - Journal of Geophysical Research AU - McCord, Thomas B AU - Orlando, Thomas M AU - Teeter, Glenn AU - Hansen, Gary B AU - Sieger, Matthew T AU - Petrik, Nikolay G AU - van Keulen, Lisa Y1 - 2001/02// PY - 2001 DA - February 2001 SP - 3311 EP - 3319 PB - American Geophysical Union, Washington, DC VL - 106 IS - E2 SN - 0148-0227, 0148-0227 KW - icy satellites KW - experimental studies KW - Europa Satellite KW - electron-stimulated damage/desorption KW - sulfates KW - Galileo Program KW - Jupiter KW - Galilean satellites KW - temperature KW - giant planets KW - Arrhenius-type first-order desorption kinetics KW - planets KW - laboratory studies KW - activation energy KW - absorption KW - mirabilite KW - outer planets KW - satellites KW - reflectance KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50082851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Thermal+and+radiation+stability+of+the+hydrated+salt+minerals+epsomite%2C+mirabilite%2C+and+natron+under+Europa+environmental+conditions&rft.au=McCord%2C+Thomas+B%3BOrlando%2C+Thomas+M%3BTeeter%2C+Glenn%3BHansen%2C+Gary+B%3BSieger%2C+Matthew+T%3BPetrik%2C+Nikolay+G%3Bvan+Keulen%2C+Lisa&rft.aulast=McCord&rft.aufirst=Thomas&rft.date=2001-02-01&rft.volume=106&rft.issue=E2&rft.spage=3311&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2000JE001282 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 44 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #03407 N1 - SubjectsTermNotLitGenreText - absorption; activation energy; Arrhenius-type first-order desorption kinetics; electron-stimulated damage/desorption; Europa Satellite; experimental studies; Galilean satellites; Galileo Program; giant planets; icy satellites; Jupiter; laboratory studies; mirabilite; outer planets; planets; reflectance; satellites; sulfates; temperature DO - http://dx.doi.org/10.1029/2000JE001282 ER - TY - JOUR T1 - Life Prediction and Monitoring of Nuclear Power Plant Components for Service-Related Degradation AN - 18432159; 5412175 AB - This paper describes industry programs to manage structural degradation and to justify continued operation of nuclear components when unexpected degradation has been encountered due to design materials and/or operational problems. Other issues have been related to operation of components beyond their original design life in cases where there is no evidence of fatigue crack initiation or other forms of structural degradation. Data from plant operating experience have been applied in combination with inservice inspections and degradation management programs to ensure that the degradation mechanisms do not adversely impact plant safety. Probabilistic fracture mechanics calculations are presented to demonstrate how component failure probabilities can be managed through augmented inservice inspection programs. JF - Journal of Pressure Vessel Technology. Transactions of the ASME AU - Simonen, F A AU - Gosselin AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA Y1 - 2001/02// PY - 2001 DA - Feb 2001 SP - 58 EP - 64 VL - 123 IS - 1 SN - 0094-9930, 0094-9930 KW - fracture mechanics KW - inspection KW - pressure vessels KW - service life KW - Health & Safety Science Abstracts KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18432159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Pressure+Vessel+Technology.+Transactions+of+the+ASME&rft.atitle=Life+Prediction+and+Monitoring+of+Nuclear+Power+Plant+Components+for+Service-Related+Degradation&rft.au=Simonen%2C+F+A%3BGosselin&rft.aulast=Simonen&rft.aufirst=F&rft.date=2001-02-01&rft.volume=123&rft.issue=1&rft.spage=58&rft.isbn=&rft.btitle=&rft.title=Journal+of+Pressure+Vessel+Technology.+Transactions+of+the+ASME&rft.issn=00949930&rft_id=info:doi/10.1115%2F1.1344237 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1115/1.1344237 ER - TY - JOUR T1 - Computational approaches to nanomineralogy AN - 840344777; 2011-012017 JF - Reviews in Mineralogy and Geochemistry AU - Rustad, James R AU - Dzwinel, Witold AU - Yuen, David A A2 - Banfield, Jillian F. A2 - Navrotsky, Alexandra Y1 - 2001 PY - 2001 DA - 2001 SP - 191 EP - 216 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 44 SN - 1529-6466, 1529-6466 KW - scale factor KW - numerical analysis KW - fines KW - digital simulation KW - low temperature KW - data processing KW - mineralogy KW - nanoparticles KW - minerals KW - temperature KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/840344777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Computational+approaches+to+nanomineralogy&rft.au=Rustad%2C+James+R%3BDzwinel%2C+Witold%3BYuen%2C+David+A&rft.aulast=Rustad&rft.aufirst=James&rft.date=2001-01-01&rft.volume=44&rft.issue=&rft.spage=191&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/10.2138%2Frmg.2001.44.06 L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 109 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - data processing; digital simulation; fines; low temperature; mineralogy; minerals; nanoparticles; numerical analysis; scale factor; temperature DO - http://dx.doi.org/10.2138/rmg.2001.44.06 ER - TY - JOUR T1 - A study of the corrosion products of mild steel in high ionic strength brines. AN - 77050273; 11300533 AB - The corrosion layer on steel surfaces that formed after exposure to waste isolation pilot plant (WIPP) brines under anoxic conditions was characterized for chemical composition, thickness and phase composition. The chemical composition of the corrosion layer was determined both by X-ray photoelectron spectroscopy (XPS) and by chemical analysis of acid solutions used to remove the corrosion layer. Atomic force microscopic (AFM) images indicated that the brine-corroded surface layer shows extensive granulation along the contours of the steel surface that is characteristic of sharp polishing marks. The corrosion layer seemed to be porous and could be dissolved and detached in dilute hydrochloric acid. The corrosion layer appears to be composed of iron oxides with some ionic substitutions from the brines. The 77 K Mössbauer spectrum recorded for iron powder leached under similar conditions indicated the corrosion layer was comprised principally of green rust. JF - Waste management (New York, N.Y.) AU - Wang, Z AU - Moore, R C AU - Felmy, A R AU - Mason, M J AU - Kukkadapu, R K AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA. zheming.wang@pnl.gov Y1 - 2001 PY - 2001 DA - 2001 SP - 335 EP - 341 VL - 21 IS - 4 SN - 0956-053X, 0956-053X KW - Ferric Compounds KW - 0 KW - Metals KW - Radioactive Waste KW - Salts KW - brine KW - Steel KW - 12597-69-2 KW - ferric oxide KW - 1K09F3G675 KW - Hydrochloric Acid KW - QTT17582CB KW - Index Medicus KW - Spectrum Analysis KW - Corrosion KW - Microscopy, Atomic Force KW - Hydrochloric Acid -- chemistry KW - Metals -- analysis KW - Steel -- chemistry KW - Refuse Disposal -- methods KW - Ferric Compounds -- analysis KW - Ferric Compounds -- chemistry KW - Refuse Disposal -- instrumentation KW - Salts -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/77050273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Waste+management+%28New+York%2C+N.Y.%29&rft.atitle=A+study+of+the+corrosion+products+of+mild+steel+in+high+ionic+strength+brines.&rft.au=Wang%2C+Z%3BMoore%2C+R+C%3BFelmy%2C+A+R%3BMason%2C+M+J%3BKukkadapu%2C+R+K&rft.aulast=Wang&rft.aufirst=Z&rft.date=2001-01-01&rft.volume=21&rft.issue=4&rft.spage=335&rft.isbn=&rft.btitle=&rft.title=Waste+management+%28New+York%2C+N.Y.%29&rft.issn=0956053X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2001-07-26 N1 - Date created - 2001-04-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Solubilization of Fe(III) oxide-bound trace metals by a dissimilatory Fe(III) reducing bacterium AN - 52268426; 2001-013877 AB - Trace metals associate with Fe(III) oxides as adsorbed or coprecipitated species, and consequently, the biogeochemical cycles of iron and the trace metals are closely linked. This communication investigated the solubilization of coprecipitated Co(III) and Ni(II) from goethite (alpha -FeOOH) during dissimilatory bacterial iron reduction to provide insights on biogeochemical factors controlling trace-element fluxes in anoxic environments. Suspensions of homogeneously substituted Co-FeOOH (50 mmol/L as Co (sub 0.01) Fe (sub 0.99) OOH; (super 57) Co-labeled) in eight different buffer/media solutions were inoculated with a facultative, metal-reducing bacteria isolated from groundwater (Shewanella putrefacians CN32), and incubated under strictly anaerobic conditions for periods up to 32 days. Lactate (30 mmol/L) was provided as an electron donor. Growth and non-growth promoting conditions were established by adding or withholding PO (sub 4) and/or trace metals ( (super 60) Co-labeled) from the incubation media. Anthraquinone disulfonate (AQDS; 100 mu mol/L) was added to most suspensions as an electron shuttle to enhance bacterial reduction. Solutions were buffered at circumneutral pH with either PIPES or bicarbonate buffers. Solid and liquid samples were analyzed at intermediate and final time points for aqueous and sorbed/precipitated (by HCl extraction) Fe(II) and Co(II). The bioreduced solids were analyzed by X-ray diffraction and field-emission electron microscopy at experiment termination. Ni-FeOOH (Ni (sub 0.01) Fe (sub 0.99) OOH) was used for comparison in select experiments. Up to 45% of the metal containing FeOOH was bioreduced; growth-supporting conditions did not enhance reduction. The biogenic Fe(II) strongly associated with the residual Fe(III) oxide as an undefined sorbed phase at low fractional reduction in PIPES buffer, and as siderite (FeCO (sub 3) ) in bicarbonate buffer or as vivianite [Fe (sub 3) (PO (sub 4) ) (sub 2) .8H (sub 2) O] when P was present. Cobalt(III) was reduced to Co(II) in proportion to its mole ratio in the solid. The release of bioreduced Co(II) to the aqueous phase showed complex dependency on the media and buffer composition and the fractional reduction of the Co-FeOOH. In most cases Co(II) was solubilized in preference to Fe(II), but in select cases it was not. These differences were rationalized in terms of competitive adsorption reactions on the residual Fe(III) oxide surface and coprecipitation in biogenic Fe(II) solids. The bioreduced Co-FeOOH surface showed unexpectedly high sorption selectivity for the biomobilized Co(II). The bioreductive solubilization of Ni(II) from Ni-FeOOH was comparable to Co-FeOOH. Our results indicate that Fe(III)-oxide-entrained trace metals can be mobilized during bacterial iron reduction leading to a net increase, in most cases, in aqueous metal concentrations. The enhancement in trace-metal aqueous concentration, e.g., in groundwater, may proportionally exceed that of Fe(II). JF - Geochimica et Cosmochimica Acta AU - Zachara, John M AU - Fredrickson, Jim K AU - Smith, Steven C AU - Gassman, Paul L Y1 - 2001/01// PY - 2001 DA - January 2001 SP - 75 EP - 93 PB - Pergamon, Oxford VL - 65 IS - 1 SN - 0016-7037, 0016-7037 KW - sorption KW - iron oxides KW - goethite KW - cobalt KW - X-ray diffraction data KW - mass spectra KW - substitution KW - Shewanella putrefaciens KW - iron KW - emission spectra KW - laboratory studies KW - ferric iron KW - oxides KW - spectra KW - reduction KW - synthesis KW - synthetic materials KW - pH KW - experimental studies KW - solubility KW - bicarbonate ion KW - geochemical cycle KW - ICP mass spectra KW - siderite KW - biogenic processes KW - nucleation KW - metals KW - bacteria KW - cations KW - anaerobic environment KW - trace metals KW - crystal chemistry KW - carbonates KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52268426?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Solubilization+of+Fe%28III%29+oxide-bound+trace+metals+by+a+dissimilatory+Fe%28III%29+reducing+bacterium&rft.au=Zachara%2C+John+M%3BFredrickson%2C+Jim+K%3BSmith%2C+Steven+C%3BGassman%2C+Paul+L&rft.aulast=Zachara&rft.aufirst=John&rft.date=2001-01-01&rft.volume=65&rft.issue=1&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2800%2900500-7 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 75 N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anaerobic environment; bacteria; bicarbonate ion; biogenic processes; carbonates; cations; cobalt; crystal chemistry; emission spectra; experimental studies; ferric iron; geochemical cycle; goethite; ICP mass spectra; iron; iron oxides; laboratory studies; mass spectra; metals; nucleation; oxides; pH; reduction; Shewanella putrefaciens; siderite; solubility; sorption; spectra; substitution; synthesis; synthetic materials; trace metals; X-ray diffraction data DO - http://dx.doi.org/10.1016/S0016-7037(00)00500-7 ER - TY - JOUR T1 - Iron sulfides and sulfur species produced at hematite surfaces in the presence of sulfate-reducing bacteria AN - 52255625; 2001-018713 AB - In the presence of sulfate-reducing bacteria (Desulfovibrio desulfuricans) hematite (alpha -Fe (sub 2) O (sub 3) ) dissolution is affected potentially by a combination of enzymatic (hydrogenase) reduction and hydrogen sulfide oxidation. As a consequence, ferrous ions are free to react with excess H (sub 2) S to form insoluble ferrous sulfides. X-ray photoelectron spectra indicate binding energies similar to ferrous sulfides having pyrrhotite-like structures (Fe2p (sub 3/2) 708.4 eV; S2p (sub 3/2) 161.5 eV). Other sulfur species identified at the surface include sulfate, sulfite and polysulfides. Thin film X-ray diffraction identifies a limited number of peaks, the principal one of which may be assigned to the hexagonal pyrrhotite (102) peak (d = 2.09 Aa; 2theta = 43.22 degrees ), at the hematite surface within 3 months exposure to sulfate-reducing bacteria (SRB). High-resolution transmission electron microscopy identifies the presence of a hexagonal structure associated with observed crystallites. Although none of the analytical techniques employed provide unequivocal evidence as to the nature of the ferrous sulfide formed in the presence of SRB at hematite surfaces, we conclude from the available evidence that a pyrrhotite stoichiometry and structure is the best description of the sulfides we observe. Such ferrous sulfide production is inconsistent with previous reports in which mackinawite and greigite were products of biological sulfate reduction (Rickard 1969a; Herbert et al., 1998; Benning et al., 1999). The apparent differences in stoichiometry may be related to sulfide activity at the mineral surface, controlled in part by H (sub 2) S autooxidation in the presence of iron oxides. Due to the relative stability of pyrrhotite at low temperatures, ferrous sulfide dissolution is likely to be reduced compared to the more commonly observed products of SRB activity. Additionally, biogenic pyrrhotite formation will also have implications for geomagnetic field behavior of sediments. JF - Geochimica et Cosmochimica Acta AU - Neal, Andrew L AU - Techkarnjanaruk, Somkjet AU - Dohnalkova, Alice AU - McCready, David AU - Peyton, Brent M AU - Geesey, Gill G Y1 - 2001/01// PY - 2001 DA - January 2001 SP - 223 EP - 235 PB - Pergamon, Oxford VL - 65 IS - 2 SN - 0016-7037, 0016-7037 KW - iron oxides KW - X-ray diffraction data KW - crystal structure KW - crystal growth KW - solution KW - iron KW - laboratory studies KW - hematite KW - Desulfovibrio KW - oxides KW - spectra KW - reduction KW - stoichiometry KW - pyrrhotite KW - geochemistry KW - experimental studies KW - sulfate ion KW - Desulfovibrio desulfuricans KW - X-ray spectra KW - TEM data KW - ferrous iron KW - biogenic processes KW - iron sulfides KW - precipitation KW - metals KW - bacteria KW - sulfur KW - sulfides KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52255625?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Future+of+Children&rft.atitle=The+impact+of+family+formation+change+on+the+cognitive%2C+social%2C+and+emotional+well-being+of+the+next+generation&rft.au=Amato%2C+Paul+R.&rft.aulast=Amato&rft.aufirst=Paul&rft.date=2005-10-01&rft.volume=15&rft.issue=2&rft.spage=75&rft.isbn=&rft.btitle=&rft.title=The+Future+of+Children&rft.issn=10548289&rft_id=info:doi/10.1353%2Ffoc.2005.0012 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2001-01-01 N1 - Number of references - 103 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; crystal growth; crystal structure; Desulfovibrio; Desulfovibrio desulfuricans; experimental studies; ferrous iron; geochemistry; hematite; iron; iron oxides; iron sulfides; laboratory studies; metals; oxides; precipitation; pyrrhotite; reduction; solution; spectra; stoichiometry; sulfate ion; sulfides; sulfur; TEM data; X-ray diffraction data; X-ray spectra DO - http://dx.doi.org/10.1016/S0016-7037(00)00537-8 ER - TY - JOUR T1 - Size-fractionated plutonium isotopes in a coastal environment AN - 52217623; 2001-049115 JF - Journal of Environmental Radioactivity AU - Dai, M H AU - Buesseler, K O AU - Kelley, J M AU - Andrews, J E AU - Pike, S AU - Wacker, J F Y1 - 2001 PY - 2001 DA - 2001 SP - 9 EP - 25 PB - Elsevier, Oxford VL - 53 IS - 1 SN - 0265-931X, 0265-931X KW - Pu-240/Pu-239 KW - sea water KW - isotopes KW - detection limit KW - plutonium KW - Pu-239 KW - thermal ionization mass spectra KW - mass spectra KW - techniques KW - radioactive fallout KW - radioactive isotopes KW - mass balance KW - spectra KW - depositional environment KW - colloidal materials KW - isotope ratios KW - global KW - pollution KW - measurement KW - metals KW - coastal environment KW - North Atlantic KW - Gulf of Maine KW - actinides KW - Pu-241 KW - Atlantic Ocean KW - Pu-240 KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52217623?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Radioactivity&rft.atitle=Size-fractionated+plutonium+isotopes+in+a+coastal+environment&rft.au=Dai%2C+M+H%3BBuesseler%2C+K+O%3BKelley%2C+J+M%3BAndrews%2C+J+E%3BPike%2C+S%3BWacker%2C+J+F&rft.aulast=Dai&rft.aufirst=M&rft.date=2001-01-01&rft.volume=53&rft.issue=1&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Radioactivity&rft.issn=0265931X&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0265931X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; Atlantic Ocean; chemical fractionation; coastal environment; colloidal materials; depositional environment; detection limit; global; Gulf of Maine; isotope ratios; isotopes; mass balance; mass spectra; measurement; metals; North Atlantic; plutonium; pollution; Pu-239; Pu-240; Pu-240/Pu-239; Pu-241; radioactive fallout; radioactive isotopes; sea water; spectra; techniques; thermal ionization mass spectra ER - TY - JOUR T1 - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II AN - 52211850; 2001-056981 JF - Water Science and Application AU - Dunne, Thomas Y1 - 2001 PY - 2001 DA - 2001 SP - 77 EP - 83 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - processes KW - hydrology KW - forests KW - monitoring KW - erosion KW - human activity KW - effects KW - debris flows KW - urbanization KW - models KW - runoff KW - mass movements KW - land management KW - geomorphology KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52211850?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=AGU+1997+fall+meeting%3B+Impacts+of+land+use+on+the+hydrologic-geomorphic+responses+of+watersheds+I+%26amp%3B+II&rft.au=Dunne%2C+Thomas&rft.aulast=Dunne&rft.aufirst=Thomas&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=77&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0077 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 19 N1 - PubXState - DC N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - debris flows; effects; erosion; forests; geomorphology; human activity; hydrology; land management; land use; mass movements; models; monitoring; processes; runoff; urbanization DO - http://dx.doi.org/10.1029/WS002p0077 ER - TY - JOUR T1 - The effects of forest roads and harvest on catchment hydrology in a mountainous maritime environment AN - 52211611; 2001-056984 JF - Water Science and Application AU - Bowling, Laura C AU - Lettenmaier, Dennis P Y1 - 2001 PY - 2001 DA - 2001 SP - 145 EP - 164 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - processes KW - hydrology KW - forests KW - Washington KW - erosion KW - human activity KW - drainage KW - surface water KW - effects KW - urbanization KW - forest roads KW - mountains KW - Hard Creek KW - runoff KW - Ware Creek KW - discharge KW - land use KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52211611?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=The+effects+of+forest+roads+and+harvest+on+catchment+hydrology+in+a+mountainous+maritime+environment&rft.au=Bowling%2C+Laura+C%3BLettenmaier%2C+Dennis+P&rft.aulast=Bowling&rft.aufirst=Laura&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=145&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0145 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 7 tables, sketch maps N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - discharge; drainage; effects; erosion; forest roads; forests; Hard Creek; human activity; hydrology; land use; mountains; processes; runoff; surface water; United States; urbanization; Ware Creek; Washington DO - http://dx.doi.org/10.1029/WS002p0145 ER - TY - JOUR T1 - Sliding in Seattle; test of a model of shallow landsliding potential in an urban environment AN - 52211593; 2001-056980 JF - Water Science and Application AU - Montgomery, David R AU - Greenberg, Harvey M AU - Laprade, William T AU - Nashem, William D Y1 - 2001 PY - 2001 DA - 2001 SP - 59 EP - 73 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - processes KW - hydrology KW - Washington KW - geologic hazards KW - human activity KW - watersheds KW - effects KW - King County Washington KW - equations KW - digital terrain models KW - urbanization KW - landslides KW - Seattle Washington KW - mass movements KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52211593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Sliding+in+Seattle%3B+test+of+a+model+of+shallow+landsliding+potential+in+an+urban+environment&rft.au=Montgomery%2C+David+R%3BGreenberg%2C+Harvey+M%3BLaprade%2C+William+T%3BNashem%2C+William+D&rft.aulast=Montgomery&rft.aufirst=David&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=59&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0059 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 36 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - digital terrain models; effects; equations; geologic hazards; human activity; hydrology; King County Washington; landslides; mass movements; processes; Seattle Washington; United States; urbanization; Washington; watersheds DO - http://dx.doi.org/10.1029/WS002p0059 ER - TY - JOUR T1 - Evaluation of the temporal and spatial impacts of timber harvesting on landslide occurrence AN - 52210670; 2001-056986 JF - Water Science and Application AU - Sidle, Roy C AU - Wu, Weimin Y1 - 2001 PY - 2001 DA - 2001 SP - 179 EP - 193 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - processes KW - geologic hazards KW - erosion KW - human activity KW - Monte Carlo analysis KW - statistical analysis KW - effects KW - tree logging KW - equations KW - models KW - spatial distribution KW - Oregon KW - landslides KW - mass movements KW - land management KW - ecology KW - temporal distribution KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52210670?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Evaluation+of+the+temporal+and+spatial+impacts+of+timber+harvesting+on+landslide+occurrence&rft.au=Sidle%2C+Roy+C%3BWu%2C+Weimin&rft.aulast=Sidle&rft.aufirst=Roy&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=179&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0179 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 109 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - ecology; effects; equations; erosion; geologic hazards; human activity; land management; land use; landslides; mass movements; models; Monte Carlo analysis; Oregon; processes; spatial distribution; statistical analysis; temporal distribution; tree logging; United States DO - http://dx.doi.org/10.1029/WS002p0179 ER - TY - JOUR T1 - Rates of channel erosion in small urban streams AN - 52210630; 2001-056978 JF - Water Science and Application AU - Booth, Derek B AU - Henshaw, Patricia C Y1 - 2001 PY - 2001 DA - 2001 SP - 17 EP - 38 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - processes KW - hydrology KW - Washington KW - erosion KW - human activity KW - watersheds KW - channels KW - rates KW - effects KW - urbanization KW - concepts KW - Puget Sound KW - classification KW - streams KW - geomorphology KW - water resources KW - land use KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52210630?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Rates+of+channel+erosion+in+small+urban+streams&rft.au=Booth%2C+Derek+B%3BHenshaw%2C+Patricia+C&rft.aulast=Booth&rft.aufirst=Derek&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=17&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0017 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 36 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - channels; classification; concepts; effects; erosion; geomorphology; human activity; hydrology; land use; processes; Puget Sound; rates; streams; United States; urbanization; Washington; water resources; watersheds DO - http://dx.doi.org/10.1029/WS002p0017 ER - TY - JOUR T1 - Influence of urbanization on ecological processes in wetlands AN - 52210605; 2001-056977 JF - Water Science and Application AU - Thom, Ronald M AU - Borde, Amy B AU - Richter, Klaus O AU - Hibler, Lyle F Y1 - 2001 PY - 2001 DA - 2001 SP - 5 EP - 17 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - processes KW - hydrology KW - Washington KW - human activity KW - effects KW - ecosystems KW - urbanization KW - evapotranspiration KW - ground water KW - Oregon KW - Puget Sound KW - wetlands KW - Multnomah County Oregon KW - ecology KW - water resources KW - land use KW - Portland Oregon KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52210605?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Influence+of+urbanization+on+ecological+processes+in+wetlands&rft.au=Thom%2C+Ronald+M%3BBorde%2C+Amy+B%3BRichter%2C+Klaus+O%3BHibler%2C+Lyle+F&rft.aulast=Thom&rft.aufirst=Ronald&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=5&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0005 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - ecology; ecosystems; effects; evapotranspiration; ground water; human activity; hydrology; land use; Multnomah County Oregon; Oregon; Portland Oregon; processes; Puget Sound; United States; urbanization; Washington; water resources; wetlands DO - http://dx.doi.org/10.1029/WS002p0005 ER - TY - JOUR T1 - Development and application of simplified continuous hydrologic modeling for drainage design and analysis AN - 52210295; 2001-056979 JF - Water Science and Application AU - Jackson, C Rhett AU - Burges, Stephen J AU - Liang, Xu AU - Leytham, K Malcolm AU - Whiting, Kelly R AU - Hartley, David M AU - Crawford, Curt W AU - Johnson, Bruce N AU - Horner, Richard R Y1 - 2001 PY - 2001 DA - 2001 SP - 39 EP - 58 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - protection KW - processes KW - hydrology KW - Washington KW - human activity KW - regulations KW - drainage KW - watersheds KW - effects KW - ecosystems KW - models KW - Puget Sound KW - runoff KW - ecology KW - water resources KW - land use KW - design KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52210295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Development+and+application+of+simplified+continuous+hydrologic+modeling+for+drainage+design+and+analysis&rft.au=Jackson%2C+C+Rhett%3BBurges%2C+Stephen+J%3BLiang%2C+Xu%3BLeytham%2C+K+Malcolm%3BWhiting%2C+Kelly+R%3BHartley%2C+David+M%3BCrawford%2C+Curt+W%3BJohnson%2C+Bruce+N%3BHorner%2C+Richard+R&rft.aulast=Jackson&rft.aufirst=C&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=39&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0039 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - design; drainage; ecology; ecosystems; effects; human activity; hydrology; land use; models; processes; protection; Puget Sound; regulations; runoff; United States; Washington; water resources; watersheds DO - http://dx.doi.org/10.1029/WS002p0039 ER - TY - JOUR T1 - Validation of the shallow landslide model, SHALSTAB, for forest management AN - 52210261; 2001-056987 JF - Water Science and Application AU - Dietrich, William E AU - Bellugi, Dino AU - Real de Asua, Raphael Y1 - 2001 PY - 2001 DA - 2001 SP - 195 EP - 227 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - soils KW - processes KW - forests KW - geologic hazards KW - erosion KW - human activity KW - drainage KW - effects KW - equations KW - models KW - spatial distribution KW - Oregon KW - landslides KW - Coast Ranges KW - SHALSTAB KW - mass movements KW - land management KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52210261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Validation+of+the+shallow+landslide+model%2C+SHALSTAB%2C+for+forest+management&rft.au=Dietrich%2C+William+E%3BBellugi%2C+Dino%3BReal+de+Asua%2C+Raphael&rft.aulast=Dietrich&rft.aufirst=William&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=195&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0195 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 68 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - Coast Ranges; drainage; effects; equations; erosion; forests; geologic hazards; human activity; land management; land use; landslides; mass movements; models; Oregon; processes; SHALSTAB; soils; spatial distribution; United States DO - http://dx.doi.org/10.1029/WS002p0195 ER - TY - JOUR T1 - Impacts of logging on storm peak flows, flow volumes and suspended sediment loads in Caspar Creek, California AN - 52210199; 2001-056982 JF - Water Science and Application AU - Lewis, Jack AU - Mori, Sylvia R AU - Keppeler, Elizabeth T AU - Ziemer, Robert R Y1 - 2001 PY - 2001 DA - 2001 SP - 85 EP - 125 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - United States KW - processes KW - hydrology KW - bedload KW - Caspar Creek KW - erosion KW - human activity KW - surface water KW - watersheds KW - suspended materials KW - effects KW - tree logging KW - equations KW - urbanization KW - California KW - runoff KW - discharge KW - water resources KW - land use KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52210199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Impacts+of+logging+on+storm+peak+flows%2C+flow+volumes+and+suspended+sediment+loads+in+Caspar+Creek%2C+California&rft.au=Lewis%2C+Jack%3BMori%2C+Sylvia+R%3BKeppeler%2C+Elizabeth+T%3BZiemer%2C+Robert+R&rft.aulast=Lewis&rft.aufirst=Jack&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=85&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0085 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 57 N1 - PubXState - DC N1 - Document feature - illus. incl. 13 tables N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - bedload; California; Caspar Creek; discharge; effects; equations; erosion; human activity; hydrology; land use; processes; runoff; surface water; suspended materials; tree logging; United States; urbanization; water resources; watersheds DO - http://dx.doi.org/10.1029/WS002p0085 ER - TY - JOUR T1 - Structure and reactivity of semiconducting mineral surfaces; convergence of molecular modeling and experiment AN - 52130428; 2002-028384 JF - Reviews in Mineralogy and Geochemistry AU - Rosso, Kevin M A2 - Cygan, Randall T. A2 - Kubicki, James D. Y1 - 2001 PY - 2001 DA - 2001 SP - 199 EP - 271 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 42 SN - 1529-6466, 1529-6466 KW - molecular structure KW - models KW - theoretical studies KW - experimental studies KW - electrical properties KW - density KW - chemical reactions KW - crystal structure KW - molecular dynamics KW - crystal chemistry KW - energy KW - 01A:General mineralogy KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52130428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Structure+and+reactivity+of+semiconducting+mineral+surfaces%3B+convergence+of+molecular+modeling+and+experiment&rft.au=Rosso%2C+Kevin+M&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2001-01-01&rft.volume=42&rft.issue=&rft.spage=199&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 270 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal chemistry; crystal structure; density; electrical properties; energy; experimental studies; models; molecular dynamics; molecular structure; theoretical studies ER - TY - JOUR T1 - A computational quantum chemical study of the bonded interactions in Earth materials and structurally and chemically related molecules AN - 52127424; 2002-028387 JF - Reviews in Mineralogy and Geochemistry AU - Gibbs, G V AU - Boisen, Monte B, Jr AU - Beverly, Lesa L AU - Rosso, Kevin M A2 - Cygan, Randall T. A2 - Kubicki, James D. Y1 - 2001 PY - 2001 DA - 2001 SP - 345 EP - 381 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 42 SN - 1529-6466, 1529-6466 KW - silicates KW - experimental studies KW - quantum mechanics KW - crystal structure KW - bonding KW - molecular structure KW - models KW - theoretical studies KW - molecular dynamics KW - crystal chemistry KW - energy KW - compressibility KW - 01A:General mineralogy KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52127424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=A+computational+quantum+chemical+study+of+the+bonded+interactions+in+Earth+materials+and+structurally+and+chemically+related+molecules&rft.au=Gibbs%2C+G+V%3BBoisen%2C+Monte+B%2C+Jr%3BBeverly%2C+Lesa+L%3BRosso%2C+Kevin+M&rft.aulast=Gibbs&rft.aufirst=G&rft.date=2001-01-01&rft.volume=42&rft.issue=&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 170 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - bonding; compressibility; crystal chemistry; crystal structure; energy; experimental studies; models; molecular dynamics; molecular structure; quantum mechanics; silicates; theoretical studies ER - TY - JOUR T1 - Molecular models of surface relaxation, hydroxylation, and surface charging at oxide-water interfaces AN - 52126687; 2002-028383 JF - Reviews in Mineralogy and Geochemistry AU - Rustad, James R A2 - Cygan, Randall T. A2 - Kubicki, James D. Y1 - 2001 PY - 2001 DA - 2001 SP - 169 EP - 197 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 42 SN - 1529-6466, 1529-6466 KW - experimental studies KW - gaseous phase KW - mineral-water interface KW - crystal structure KW - relaxation KW - molecular structure KW - laboratory studies KW - hydroxyl ion KW - mathematical methods KW - oxides KW - molecular dynamics KW - crystal chemistry KW - 01A:General mineralogy KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52126687?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+in+Mineralogy+and+Geochemistry&rft.atitle=Molecular+models+of+surface+relaxation%2C+hydroxylation%2C+and+surface+charging+at+oxide-water+interfaces&rft.au=Rustad%2C+James+R&rft.aulast=Rustad&rft.aufirst=James&rft.date=2001-01-01&rft.volume=42&rft.issue=&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Reviews+in+Mineralogy+and+Geochemistry&rft.issn=15296466&rft_id=info:doi/ L2 - http://www.minsocam.org/MSA/RIM/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 104 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - crystal chemistry; crystal structure; experimental studies; gaseous phase; hydroxyl ion; laboratory studies; mathematical methods; mineral-water interface; molecular dynamics; molecular structure; oxides; relaxation ER - TY - BOOK T1 - Constraints on the distribution of microorganisms in subsurface environments AN - 52058655; 2002-076389 JF - Subsurface microbiology and biogeochemistry AU - Colwell, Frederick S A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - lithostratigraphy KW - permafrost KW - gas hydrates KW - aliphatic hydrocarbons KW - temperature KW - ground water KW - transport KW - ecology KW - chemosynthesis KW - concentration KW - methane KW - sewage KW - pressure KW - metabolism KW - biochemistry KW - alkanes KW - distribution KW - porosity KW - organic compounds KW - biogenic processes KW - bacteria KW - hydrocarbons KW - hydrostatic pressure KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52058655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Colwell%2C+Frederick+S&rft.aulast=Colwell&rft.aufirst=Frederick&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Constraints+on+the+distribution+of+microorganisms+in+subsurface+environments&rft.title=Constraints+on+the+distribution+of+microorganisms+in+subsurface+environments&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 106 N1 - PubXState - NY N1 - Document feature - illus. incl. strat. col. N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Transport of microorganisms in the subsurface; the role of attachment and colonization of particle surfaces AN - 52058422; 2002-076388 JF - Subsurface microbiology and biogeochemistry AU - Fletcher, Madilyn AU - Murphy, Ellyn A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - experimental studies KW - biochemistry KW - unsaturated zone KW - porosity KW - ground water KW - aquifers KW - biogenic processes KW - transport KW - biofilms KW - bacteria KW - sediments KW - ecology KW - particles KW - microorganisms KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52058422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Fletcher%2C+Madilyn%3BMurphy%2C+Ellyn&rft.aulast=Fletcher&rft.aufirst=Madilyn&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Transport+of+microorganisms+in+the+subsurface%3B+the+role+of+attachment+and+colonization+of+particle+surfaces&rft.title=Transport+of+microorganisms+in+the+subsurface%3B+the+role+of+attachment+and+colonization+of+particle+surfaces&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 135 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Subsurface microbiology and biogeochemistry AN - 52058152; 2002-076386 JF - Subsurface microbiology and biogeochemistry A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 SP - 341 PB - Wiley-Liss, New York, NY SN - 047131577X KW - underground cavities KW - biochemistry KW - bacteria KW - ecology KW - bioremediation KW - crust KW - remediation KW - microorganisms KW - ground water KW - aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52058152?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Subsurface+microbiology+and+biogeochemistry&rft.title=Subsurface+microbiology+and+biogeochemistry&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - NY N1 - Document feature - illus. incl. tables, strat. col., sketch map N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - The use of geochemistry and the importance of sample scale in investigations of lithologically heterogeneous microbial ecosystems AN - 52057568; 2002-076392 JF - Subsurface microbiology and biogeochemistry AU - McKinley, James P A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - lithostratigraphy KW - sampling KW - metabolism KW - biochemistry KW - bacteria KW - ecology KW - geochemistry KW - chemosynthesis KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52057568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=McKinley%2C+James+P&rft.aulast=McKinley&rft.aufirst=James&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=The+use+of+geochemistry+and+the+importance+of+sample+scale+in+investigations+of+lithologically+heterogeneous+microbial+ecosystems&rft.title=The+use+of+geochemistry+and+the+importance+of+sample+scale+in+investigations+of+lithologically+heterogeneous+microbial+ecosystems&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 41 N1 - PubXState - NY N1 - Document feature - illus. incl. strat. col. N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Reduction of iron and humics in subsurface environments AN - 52057304; 2002-076393 JF - Subsurface microbiology and biogeochemistry AU - Lovley, Derek R A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - deep aquifers KW - pollutants KW - phylogeny KW - metabolism KW - pollution KW - petroleum KW - humic acids KW - bioremediation KW - iron KW - remediation KW - ground water KW - aquifers KW - organic compounds KW - organic acids KW - humic substances KW - metals KW - bacteria KW - ecology KW - reduction KW - chemosynthesis KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52057304?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Lovley%2C+Derek+R&rft.aulast=Lovley&rft.aufirst=Derek&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Reduction+of+iron+and+humics+in+subsurface+environments&rft.title=Reduction+of+iron+and+humics+in+subsurface+environments&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 101 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Biogeochemical and geological significance of subsurface microbiology AN - 52057087; 2002-076387 JF - Subsurface microbiology and biogeochemistry AU - Fredrickson, James K AU - Onstott, Tullis C A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - deep aquifers KW - oxygen KW - isotopes KW - metabolism KW - isotope ratios KW - biochemistry KW - oxidation KW - C-13/C-12 KW - O-18/O-16 KW - stable isotopes KW - ground water KW - aquifers KW - biogenic processes KW - catalysis KW - sampling KW - precipitation KW - carbon KW - bacteria KW - sediments KW - ecology KW - reduction KW - chemosynthesis KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52057087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Fredrickson%2C+James+K%3BOnstott%2C+Tullis+C&rft.aulast=Fredrickson&rft.aufirst=James&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Biogeochemical+and+geological+significance+of+subsurface+microbiology&rft.title=Biogeochemical+and+geological+significance+of+subsurface+microbiology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 171 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Microbial sulfur cycling in terrestrial subsurface environments AN - 52057047; 2002-076394 JF - Subsurface microbiology and biogeochemistry AU - Grossman, Ethan L AU - Desrocher, Steven A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - metabolism KW - biochemistry KW - oxidation KW - ground water KW - aquifers KW - bacteria KW - sediments KW - sulfur KW - ecology KW - reduction KW - geochemistry KW - chemosynthesis KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52057047?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Grossman%2C+Ethan+L%3BDesrocher%2C+Steven&rft.aulast=Grossman&rft.aufirst=Ethan&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Microbial+sulfur+cycling+in+terrestrial+subsurface+environments&rft.title=Microbial+sulfur+cycling+in+terrestrial+subsurface+environments&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 129 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sects. N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Intrinsic bioremediation of organic subsurface contaminants AN - 52052388; 2002-076395 JF - Subsurface microbiology and biogeochemistry AU - Madsen, Eugene L A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - organic compounds KW - in situ KW - pollutants KW - bacteria KW - pollution KW - bioremediation KW - remediation KW - microorganisms KW - ground water KW - aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52052388?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Madsen%2C+Eugene+L&rft.aulast=Madsen&rft.aufirst=Eugene&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Intrinsic+bioremediation+of+organic+subsurface+contaminants&rft.title=Intrinsic+bioremediation+of+organic+subsurface+contaminants&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 136 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Nucleic acid analysis of subsurface microbial communities; pitfalls, possibilities, and biogeochemical implications AN - 52051891; 2002-076396 JF - Subsurface microbiology and biogeochemistry AU - Chandler, Darrell P AU - Brockman, Fred J A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - methods KW - communities KW - biomass KW - metabolism KW - biochemistry KW - geochemical methods KW - bacteria KW - DNA KW - ecology KW - chemosynthesis KW - microorganisms KW - biogeochemical methods KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52051891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Chandler%2C+Darrell+P%3BBrockman%2C+Fred+J&rft.aulast=Chandler&rft.aufirst=Darrell&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Nucleic+acid+analysis+of+subsurface+microbial+communities%3B+pitfalls%2C+possibilities%2C+and+biogeochemical+implications&rft.title=Nucleic+acid+analysis+of+subsurface+microbial+communities%3B+pitfalls%2C+possibilities%2C+and+biogeochemical+implications&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 141 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Ferrographic tracking of bacterial transport in the field at the Narrow Channel focus area, Oyster, VA AN - 51965891; 2003-053806 JF - Environmental Science & Technology, ES & T AU - Johnson, W P AU - Zhang, P AU - Fuller, M E AU - Scheibe, T D AU - Mailloux, B J AU - Onstott, T C AU - DeFlaun, M F AU - Hubbard, S S AU - Radtke, J AU - Kovacik, W P AU - Holben, W Y1 - 2001/01// PY - 2001 DA - January 2001 SP - 182 EP - 191 PB - American Chemical Society, Washington, DC VL - 35 IS - 1 SN - 0013-936X, 0013-936X KW - United States KW - water supply KW - experimental studies KW - Virginia KW - injection KW - techniques KW - Northampton County Virginia KW - South Oyster Site KW - environmental analysis KW - iron KW - ground water KW - ferrous iron KW - bioaccumulation KW - aquifers KW - physical properties KW - Oyster Virginia KW - transport KW - metals KW - bacteria KW - hydraulic conductivity KW - Delmarva Peninsula KW - unconfined aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51965891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.atitle=Ferrographic+tracking+of+bacterial+transport+in+the+field+at+the+Narrow+Channel+focus+area%2C+Oyster%2C+VA&rft.au=Johnson%2C+W+P%3BZhang%2C+P%3BFuller%2C+M+E%3BScheibe%2C+T+D%3BMailloux%2C+B+J%3BOnstott%2C+T+C%3BDeFlaun%2C+M+F%3BHubbard%2C+S+S%3BRadtke%2C+J%3BKovacik%2C+W+P%3BHolben%2C+W&rft.aulast=Johnson&rft.aufirst=W&rft.date=2001-01-01&rft.volume=35&rft.issue=1&rft.spage=182&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology%2C+ES+%26+T&rft.issn=0013936X&rft_id=info:doi/ L2 - http://pubs.acs.org/journals/esthag/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; bioaccumulation; Delmarva Peninsula; environmental analysis; experimental studies; ferrous iron; ground water; hydraulic conductivity; injection; iron; metals; Northampton County Virginia; Oyster Virginia; physical properties; South Oyster Site; techniques; transport; unconfined aquifers; United States; Virginia; water supply ER - TY - RPRT T1 - Interaction of rock minerals with carbon dioxide and brine; a hydrothermal investigation AN - 51964272; 2003-051728 JF - First national conference on Carbon sequestration AU - Sass, Bruce M AU - Gupta, Neeraj AU - Ickes, Jennifer A AU - Engelhard, Mark H AU - Baer, Donald R AU - Bergman, Perry AU - Byrer, Charles AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 9 VL - DOE/NETL-2001/114 KW - United States KW - silicates KW - deep aquifers KW - clay mineralogy KW - sandstone KW - Mount Simon Sandstone KW - simulation KW - feasibility studies KW - Cambrian KW - ground water KW - carbon dioxide KW - anorthite KW - Upper Cambrian KW - sedimentary rocks KW - mineral composition KW - chemical reactions KW - water-rock interaction KW - mica group KW - Indiana KW - saline aquifers KW - framework silicates KW - Ohio KW - bedrock KW - plagioclase KW - sequestration KW - pressure KW - underground storage KW - Paleozoic KW - hydrothermal conditions KW - clay minerals KW - aquifers KW - glauconite KW - brines KW - underground installations KW - sheet silicates KW - feldspar group KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51964272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Sass%2C+Bruce+M%3BGupta%2C+Neeraj%3BIckes%2C+Jennifer+A%3BEngelhard%2C+Mark+H%3BBaer%2C+Donald+R%3BBergman%2C+Perry%3BByrer%2C+Charles%3BAnonymous&rft.aulast=Sass&rft.aufirst=Bruce&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Interaction+of+rock+minerals+with+carbon+dioxide+and+brine%3B+a+hydrothermal+investigation&rft.title=Interaction+of+rock+minerals+with+carbon+dioxide+and+brine%3B+a+hydrothermal+investigation&rft.issn=&rft_id=info:doi/ L2 - http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/4a4.pdf LA - English DB - GeoRef N1 - Conference title - First national conference on Carbon sequestration N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 6 N1 - Availability - U. S. Department of Energy, National Energy Technology Laboratory, United States N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Use of forced mineral trapping for sequestration of CO (sub 2) AN - 51962216; 2003-051701 JF - First national conference on Carbon sequestration AU - McGrail, B Peter AU - Saripalli, K Prasad AU - Sass, Bruce M AU - Martin, Paul F AU - Bryant, S L AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 7 VL - DOE/NETL-2001/114 KW - failures KW - sequestration KW - geologic hazards KW - underground storage KW - coal seams KW - solution KW - cost KW - reservoir rocks KW - ground water KW - carbon dioxide KW - aquifers KW - oil wells KW - mineral trapping KW - chemical reactions KW - underground installations KW - risk assessment KW - waste disposal KW - geochemistry KW - minerals KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51962216?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=McGrail%2C+B+Peter%3BSaripalli%2C+K+Prasad%3BSass%2C+Bruce+M%3BMartin%2C+Paul+F%3BBryant%2C+S+L%3BAnonymous&rft.aulast=McGrail&rft.aufirst=B&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Use+of+forced+mineral+trapping+for+sequestration+of+CO+%28sub+2%29&rft.title=Use+of+forced+mineral+trapping+for+sequestration+of+CO+%28sub+2%29&rft.issn=&rft_id=info:doi/ L2 - http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/p34.pdf LA - English DB - GeoRef N1 - Conference title - First national conference on Carbon sequestration N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 15 N1 - Availability - U. S. Department of Energy, National Energy Technology Laboratory, United States N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Carbon sequestration in terrestrial ecosystems; a status report on R&D progress AN - 51962190; 2003-051723 JF - First national conference on Carbon sequestration AU - Jacobs, Gary K AU - Dahlman, Roger C AU - Metting, F Blaine, Jr AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 8 VL - DOE/NETL-2001/114 KW - soils KW - terrestrial environment KW - sequestration KW - development KW - biomass KW - global change KW - ecosystems KW - research KW - cost KW - carbon dioxide KW - environmental management KW - mitigation KW - carbon KW - ecology KW - greenhouse effect KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51962190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Jacobs%2C+Gary+K%3BDahlman%2C+Roger+C%3BMetting%2C+F+Blaine%2C+Jr%3BAnonymous&rft.aulast=Jacobs&rft.aufirst=Gary&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Carbon+sequestration+in+terrestrial+ecosystems%3B+a+status+report+on+R%26D+progress&rft.title=Carbon+sequestration+in+terrestrial+ecosystems%3B+a+status+report+on+R%26D+progress&rft.issn=&rft_id=info:doi/ L2 - http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/3C1.pdf LA - English DB - GeoRef N1 - Conference title - First national conference on Carbon sequestration N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - U. S. Department of Energy, National Energy Technology Laboratory, United States N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Understanding carbon sequestration options in the United States; capabilities of a carbon management geographic information system AN - 51961078; 2003-051752 JF - First national conference on Carbon sequestration AU - Dahowski, Robert T AU - Dooley, J AU - Brown, D AU - Mizoguchi, A AU - Shiozaki, M AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 10 VL - DOE/NETL-2001/114 KW - United States KW - technology KW - sequestration KW - waste disposal sites KW - atmosphere KW - mapping KW - global change KW - information management KW - data management KW - carbon dioxide KW - spatial distribution KW - mitigation KW - geographic information systems KW - information systems KW - greenhouse effect KW - storage KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51961078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Dahowski%2C+Robert+T%3BDooley%2C+J%3BBrown%2C+D%3BMizoguchi%2C+A%3BShiozaki%2C+M%3BAnonymous&rft.aulast=Dahowski&rft.aufirst=Robert&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Understanding+carbon+sequestration+options+in+the+United+States%3B+capabilities+of+a+carbon+management+geographic+information+system&rft.title=Understanding+carbon+sequestration+options+in+the+United+States%3B+capabilities+of+a+carbon+management+geographic+information+system&rft.issn=&rft_id=info:doi/ L2 - http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/7c3.pdf LA - English DB - GeoRef N1 - Conference title - First national conference on Carbon sequestration N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 5 N1 - Availability - U. S. Department of Energy, National Energy Technology Laboratory, United States N1 - Document feature - illus. incl. 1 table, sketch maps N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Summary of the Hanford Site environmental report for calendar year 2001 AN - 51959988; 2003-054843 JF - Summary of the Hanford Site environmental report for calendar year 2001 A2 - Hanf, R. W. A2 - O'Connor, G. P. A2 - Poston, T. M. Y1 - 2001 PY - 2001 DA - 2001 SP - 58 VL - PNNL-13910-SUM KW - United States KW - annual report KW - unsaturated zone KW - Grant County Washington KW - Franklin County Washington KW - ecosystems KW - vegetation KW - remediation KW - radioactive waste KW - ground water KW - environmental management KW - waste management KW - mitigation KW - transport KW - report KW - ecology KW - Benton County Washington KW - Superfund sites KW - soils KW - Washington KW - monitoring KW - pollutants KW - effluents KW - pollution KW - Hanford Site KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51959988?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Summary+of+the+Hanford+Site+environmental+report+for+calendar+year+2001&rft.title=Summary+of+the+Hanford+Site+environmental+report+for+calendar+year+2001&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Availability - Pacific Northwest National Laboratory, Richland, WA, United States N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Fundamental studies of iron oxide surface geometric and electronic structures AN - 51553488; 2006-068247 JF - LPI Contribution AU - Chambers, S A AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 3102 PB - Lunar and Planetary Institute, Houston, TX VL - 1088 SN - 0161-5297, 0161-5297 KW - surface properties KW - physical properties KW - iron oxides KW - oxides KW - crystal structure KW - maghemite KW - magnetite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51553488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Fundamental+studies+of+iron+oxide+surface+geometric+and+electronic+structures&rft.au=Chambers%2C+S+A%3BAnonymous&rft.aulast=Chambers&rft.aufirst=S&rft.date=2001-01-01&rft.volume=1088&rft.issue=&rft.spage=3102&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3102.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 11 N1 - PubXState - TX N1 - SuppNotes - Accessed on June 19, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - crystal structure; iron oxides; maghemite; magnetite; oxides; physical properties; surface properties ER - TY - JOUR T1 - The proximity effect on semiconducting mineral surfaces AN - 51552373; 2006-068244 JF - LPI Contribution AU - Becker, U AU - Rosso, K M AU - Hochella, M F, Jr AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 3210 PB - Lunar and Planetary Institute, Houston, TX VL - 1088 SN - 0161-5297, 0161-5297 KW - surface properties KW - galena KW - conductivity KW - crystal structure KW - molecular dynamics KW - sulfides KW - minerals KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51552373?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=The+proximity+effect+on+semiconducting+mineral+surfaces&rft.au=Becker%2C+U%3BRosso%2C+K+M%3BHochella%2C+M+F%2C+Jr%3BAnonymous&rft.aulast=Becker&rft.aufirst=U&rft.date=2001-01-01&rft.volume=1088&rft.issue=&rft.spage=3210&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3210.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - SuppNotes - Accessed on June 19, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - conductivity; crystal structure; galena; minerals; molecular dynamics; sulfides; surface properties ER - TY - JOUR T1 - Dissolution kinetics of sodium borosilicate glass; deviations from TST expectations AN - 51550612; 2006-068122 JF - LPI Contribution AU - Icenhower, J P AU - McGrail, B P AU - Baer, D R AU - Darab, J G AU - Shutthanandan, V AU - Thevuthasan, S AU - Engelhard, M H AU - Shuh, D K AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 3905 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - silicates KW - chemical weathering KW - alkali metals KW - sodium KW - solution KW - weathering KW - borosilicates KW - metals KW - theoretical models KW - ion exchange KW - kinetics KW - glass materials KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51550612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Dissolution+kinetics+of+sodium+borosilicate+glass%3B+deviations+from+TST+expectations&rft.au=Icenhower%2C+J+P%3BMcGrail%2C+B+P%3BBaer%2C+D+R%3BDarab%2C+J+G%3BShutthanandan%2C+V%3BThevuthasan%2C+S%3BEngelhard%2C+M+H%3BShuh%2C+D+K%3BAnonymous&rft.aulast=Icenhower&rft.aufirst=J&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=3905&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - SuppNotes - Accessed on July 8, 2002 N1 - Last updated - 2017-01-19 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - alkali metals; borosilicates; chemical weathering; glass materials; ion exchange; kinetics; metals; silicates; sodium; solution; theoretical models; weathering ER - TY - JOUR T1 - Ion exchange during alteration of metamict microlite AN - 51550531; 2006-068087 JF - LPI Contribution AU - Giere, R AU - Buck, E C AU - Williams, C T AU - Reusser, E AU - Marques, J AU - Guggenheim, R AU - Mathys, D AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 3497 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - alteration KW - microlite KW - pegmatite KW - igneous rocks KW - East Africa KW - pyrochlore KW - plutonic rocks KW - Mozambique KW - metals KW - metamict minerals KW - oxides KW - Africa KW - uranium KW - tantalum KW - ion exchange KW - actinides KW - zoning KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51550531?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Ion+exchange+during+alteration+of+metamict+microlite&rft.au=Giere%2C+R%3BBuck%2C+E+C%3BWilliams%2C+C+T%3BReusser%2C+E%3BMarques%2C+J%3BGuggenheim%2C+R%3BMathys%2C+D%3BAnonymous&rft.aulast=Giere&rft.aufirst=R&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=3497&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3497.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - SuppNotes - Accessed on July 3, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - actinides; Africa; alteration; East Africa; igneous rocks; ion exchange; metals; metamict minerals; microlite; Mozambique; oxides; pegmatite; plutonic rocks; pyrochlore; tantalum; uranium; zoning ER - TY - JOUR T1 - Far-infrared spectra of layered double hydroxides; experimental results and molecular dynamics simulation for hydrotalcite AN - 51362068; 2007-113022 JF - LPI Contribution AU - Kirkpatrick, R James AU - Wang, Jianwei AU - Kalinichev, Andrey G AU - Hou, X AU - Amonette, James E AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 EP - abstract no. 3392 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - hydroxides KW - hydrotalcite KW - experimental studies KW - oxides KW - spectra KW - molecular dynamics KW - simulation KW - carbonates KW - infrared spectra KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51362068?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Far-infrared+spectra+of+layered+double+hydroxides%3B+experimental+results+and+molecular+dynamics+simulation+for+hydrotalcite&rft.au=Kirkpatrick%2C+R+James%3BWang%2C+Jianwei%3BKalinichev%2C+Andrey+G%3BHou%2C+X%3BAmonette%2C+James+E%3BAnonymous&rft.aulast=Kirkpatrick&rft.aufirst=R&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3392.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldscmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - SuppNotes - Accessed on June 3, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - carbonates; experimental studies; hydrotalcite; hydroxides; infrared spectra; molecular dynamics; oxides; simulation; spectra ER - TY - JOUR T1 - Coordination differences among rare earth elements coprecipitated with calcite; characterization using XAFS AN - 51353733; 2007-115484 JF - LPI Contribution AU - Elzinga, E J AU - Reeder, R J AU - Withers, S H AU - Peale, R E AU - Beck, K M AU - Hess, W P AU - Mason, R A AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 EP - abstract no. 3438 PB - Lunar and Planetary Institute, Houston, TX VL - 1088 SN - 0161-5297, 0161-5297 KW - dysprosium KW - experimental studies KW - coordination KW - XAFS spectra KW - X-ray spectra KW - calcite KW - laboratory studies KW - precipitation KW - metals KW - chemical properties KW - ytterbium KW - spectra KW - samarium KW - rare earths KW - neodymium KW - carbonates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51353733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Coordination+differences+among+rare+earth+elements+coprecipitated+with+calcite%3B+characterization+using+XAFS&rft.au=Elzinga%2C+E+J%3BReeder%2C+R+J%3BWithers%2C+S+H%3BPeale%2C+R+E%3BBeck%2C+K+M%3BHess%2C+W+P%3BMason%2C+R+A%3BAnonymous&rft.aulast=Elzinga&rft.aufirst=E&rft.date=2001-01-01&rft.volume=1088&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - calcite; carbonates; chemical properties; coordination; dysprosium; experimental studies; laboratory studies; metals; neodymium; precipitation; rare earths; samarium; spectra; X-ray spectra; XAFS spectra; ytterbium ER - TY - JOUR T1 - Physiological responses and environmental implications of Fe(II)-induced inhibition of microbial iron reduction AN - 51348248; 2007-112982 JF - LPI Contribution AU - Gorby, Y A AU - Liu, C AU - Beveridge, T J AU - Ferris, F G AU - Zachara, J M AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 EP - abstract no. 3850 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - biogenic processes KW - atomic force microscopy data KW - metals KW - physiology KW - bacteria KW - reduction KW - iron KW - environmental effects KW - microorganisms KW - ferrous iron KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51348248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Physiological+responses+and+environmental+implications+of+Fe%28II%29-induced+inhibition+of+microbial+iron+reduction&rft.au=Gorby%2C+Y+A%3BLiu%2C+C%3BBeveridge%2C+T+J%3BFerris%2C+F+G%3BZachara%2C+J+M%3BAnonymous&rft.aulast=Gorby&rft.aufirst=Y&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3850.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 13, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; bacteria; biogenic processes; environmental effects; ferrous iron; iron; metals; microorganisms; physiology; reduction ER - TY - JOUR T1 - A comparison of procrystal and first-principles crystal electron density distributions with application to understanding the phase changes in pyroxenes AN - 50875265; 2006-068102 JF - LPI Contribution AU - Downs, R T AU - Gibbs, G V AU - Giovanni, M K AU - Boisen, M B, Jr AU - Rosso, K M AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 3902 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - silicates KW - pyroxene group KW - numerical models KW - density KW - radii KW - electron density KW - phase transitions KW - bonding KW - crystal chemistry KW - chain silicates KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50875265?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=A+comparison+of+procrystal+and+first-principles+crystal+electron+density+distributions+with+application+to+understanding+the+phase+changes+in+pyroxenes&rft.au=Downs%2C+R+T%3BGibbs%2C+G+V%3BGiovanni%2C+M+K%3BBoisen%2C+M+B%2C+Jr%3BRosso%2C+K+M%3BAnonymous&rft.aulast=Downs&rft.aufirst=R&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=3902&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3902.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - PubXState - TX N1 - SuppNotes - Accessed on July 3, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - bonding; chain silicates; crystal chemistry; density; electron density; numerical models; phase transitions; pyroxene group; radii; silicates ER - TY - JOUR T1 - Spatial and temporal patterns in erosion from forest roads AN - 50473293; 2001-056985 JF - Water Science and Application AU - Luce, Charles H AU - Black, Thomas A Y1 - 2001 PY - 2001 DA - 2001 SP - 165 EP - 178 PB - American Geophysical Union, Washington, DC VL - 2 SN - 1526-758X, 1526-758X KW - processes KW - forests KW - erosion KW - human activity KW - effects KW - urbanization KW - spatial distribution KW - forest roads KW - mountains KW - temporal distribution KW - roads KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50473293?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Science+and+Application&rft.atitle=Spatial+and+temporal+patterns+in+erosion+from+forest+roads&rft.au=Luce%2C+Charles+H%3BBlack%2C+Thomas+A&rft.aulast=Luce&rft.aufirst=Charles&rft.date=2001-01-01&rft.volume=2&rft.issue=&rft.spage=165&rft.isbn=9781118665848&rft.btitle=&rft.title=Water+Science+and+Application&rft.issn=1526758X&rft_id=info:doi/10.1029%2FWS002p0165 LA - English DB - GeoRef N1 - Conference title - AGU 1997 fall meeting; Impacts of land use on the hydrologic-geomorphic responses of watersheds I & II N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 50 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - effects; erosion; forest roads; forests; human activity; land use; mountains; processes; roads; spatial distribution; temporal distribution; urbanization DO - http://dx.doi.org/10.1029/WS002p0165 ER - TY - BOOK T1 - The deep biosphere; lessons for planetary exploration AN - 50304087; 2002-076397 JF - Subsurface microbiology and biogeochemistry AU - McKay, Christopher P A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - water KW - icy satellites KW - Europa Satellite KW - biochemistry KW - hydrothermal vents KW - astrobiology KW - Mars KW - Galilean satellites KW - ground water KW - terrestrial planets KW - planets KW - extraterrestrial geology KW - bacteria KW - satellites KW - chemosynthesis KW - microorganisms KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50304087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=McKay%2C+Christopher+P&rft.aulast=McKay&rft.aufirst=Christopher&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=The+deep+biosphere%3B+lessons+for+planetary+exploration&rft.title=The+deep+biosphere%3B+lessons+for+planetary+exploration&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 45 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Diversity and activity of microorganisms in deep igneous rocks aquifers of the Fennoscandian Shield AN - 50304052; 2002-076390 JF - Subsurface microbiology and biogeochemistry AU - Pedersen, K A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - deep aquifers KW - igneous rocks KW - aliphatic hydrocarbons KW - Europe KW - ground water KW - sampling KW - ecology KW - chemical composition KW - geochemistry KW - chemosynthesis KW - biodegradation KW - biodiversity KW - methane KW - Western Europe KW - Finland KW - phylogeny KW - metabolism KW - biochemistry KW - alkanes KW - Fennoscandia KW - hydrochemistry KW - depth KW - hydrothermal conditions KW - gases KW - aquifers KW - Scandinavia KW - organic compounds KW - biogenic processes KW - boreholes KW - hydrogen KW - biosphere KW - biofilms KW - bacteria KW - hydrocarbons KW - Fennoscandian Shield KW - DNA KW - anaerobic environment KW - fossils KW - crust KW - Sweden KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50304052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Pedersen%2C+K&rft.aulast=Pedersen&rft.aufirst=K&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Diversity+and+activity+of+microorganisms+in+deep+igneous+rocks+aquifers+of+the+Fennoscandian+Shield&rft.title=Diversity+and+activity+of+microorganisms+in+deep+igneous+rocks+aquifers+of+the+Fennoscandian+Shield&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 78 N1 - PubXState - NY N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Vadose zone microbiology AN - 50301187; 2002-076391 JF - Subsurface microbiology and biogeochemistry AU - Kieft, Thomas L AU - Brockman, Fred J A2 - Fredrickson, James K. A2 - Fletcher, Madilyn A2 - Mitchell, Ralph Y1 - 2001 PY - 2001 DA - 2001 PB - Wiley-Liss, New York, NY SN - 047131577X KW - soils KW - biodiversity KW - communities KW - pollutants KW - metabolism KW - soil vapor extraction KW - unsaturated zone KW - pollution KW - Mars KW - bioremediation KW - remediation KW - ground water KW - terrestrial planets KW - planets KW - bioventing KW - transport KW - bacteria KW - sediments KW - ecology KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50301187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Kieft%2C+Thomas+L%3BBrockman%2C+Fred+J&rft.aulast=Kieft&rft.aufirst=Thomas&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=047131577X&rft.btitle=Vadose+zone+microbiology&rft.title=Vadose+zone+microbiology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 109 N1 - PubXState - NY N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Modeling the sequestration of CO (sub 2) in deep geological formations AN - 50295716; 2003-051703 JF - First national conference on Carbon sequestration AU - Saripalli, K Prasad AU - McGrail, B Peter AU - White, Mark D AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 SP - 19 VL - DOE/NETL-2001/114 KW - TOUGH2 KW - technology KW - sequestration KW - numerical models KW - underground storage KW - engineering properties KW - data processing KW - reservoir rocks KW - carbon dioxide KW - aquifers KW - computer programs KW - gas injection KW - transport KW - digital simulation KW - underground installations KW - permeability KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50295716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=conference&rft.jtitle=&rft.atitle=&rft.au=Saripalli%2C+K+Prasad%3BMcGrail%2C+B+Peter%3BWhite%2C+Mark+D%3BAnonymous&rft.aulast=Saripalli&rft.aufirst=K&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Modeling+the+sequestration+of+CO+%28sub+2%29+in+deep+geological+formations&rft.title=Modeling+the+sequestration+of+CO+%28sub+2%29+in+deep+geological+formations&rft.issn=&rft_id=info:doi/ L2 - http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/p36.pdf LA - English DB - GeoRef N1 - Conference title - First national conference on Carbon sequestration N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 26 N1 - Availability - U. S. Department of Energy, National Energy Technology Laboratory, United States N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Monitoring and Predicting Worker Risk AN - 20854120; 8802893 AB - Objectives. The purpose of this work was to identify current methods being used in the DOE Complex to measure, document, evaluate, and to ultimately reduce worker risk over the long term and to develop and evaluate a method that could be used to predict the risk to workers for future, planned work. As worker risk is reduced, the risk to both the local community and environment is also reduced. The cost to perform the work could increase as safety issues are addressed. However, the relative importance of protecting the worker while performing the required tasks must be maintained. Methods. Methods of measurement and documentation of risk and hazards to workers include the development and completion of job hazard analyses, the development of relative risk factors for different tasks, the performance of workplace safety walkthroughs, and the direct communication with the workers. All of these concepts are included in the process of integrated safety management. These have been implemented in the process used at Pacific Northwest National Laboratory (PNNL) (Refer to http://integratedesh.pnl.gov/links.htm) and other DOE laboratories. Safety metrics or performance measures are used to document the level of safety on each of the DOE sites. These can include items such as the total number of work-related recordable incidences, number of lost workdays, number of restricted workdays, incident case rate, number of reportable skin and personal clothing contamination incidences, number of occurrence reports, etc. Following these over time allows conclusions about which risk reduction steps make a difference. The system used by the DOE to document the accident statistics is the Computerized Accident/Incident Reporting System (CAIRS). Strengths of this type of statistical system include: 1) Data from all DOE sites are available; 2) Relative hazard weighting factors are standardized; and 3) Comparisons can be made between projects, programs, and facilities on a single site or between sites. Weaknesses include: 1) Near misses are not recorded; 2) The system does not grade within severity of injuries; 3) The system ignores proactive steps; 4) The focus is on acute accident situations, not chronic illnesses; 5) Record- keeping rules may not be consistent across the DOE Complex; and 6) Not all accidents are reported; so, some data are left out of the database. Results and Discussion. The CAIRS can also be used to predict the level of worker risk for future tasks. It has been shown that the equation used for the cost index (or relative physical hazard index) can be used for a baseline year and the level of risk in future years estimated based on labor and relative hazard risk factors. This is the preliminary model used to estimate the risk to workers on an example (real) project over the next 20 years. A more complex model has been developed using parameters such as the types of work being performed and associated work factors, types of workers, worker training and experience levels, worker\\\\\\\""s past safety records, personnel turnover rates, new technology development, and ISM system improvements. Conclusions. Conclusions from this study include: 1) Worker safety on DOE sites does appear to getting better but in some areas the data show what could be interpreted as a plateau in improvement; 2) Statistical reporting systems like CAIRS have strengths and weaknesses, which must be understood to interpret the performance indicators; 3) Behavior-based principles that increase worker involvement as part of an Integrated Safety Management System appears to enhance the process; and 4) The methodology developed to predict the risk to workers for future tasks shows promise. JF - Environmental Science and Pollution Research International AU - Kenoyer, J AU - Andrews, W B AU - Stenner, R AD - Pacific Northwest National Laboratory, Richland, WA 99352, USA, robert.stenner@pnl.gov Y1 - 2001 PY - 2001 DA - 2001 SP - 36 EP - 44 VL - 8 IS - 1 SN - 0944-1344, 0944-1344 KW - Health & Safety Science Abstracts; Environment Abstracts KW - Skin KW - Injuries KW - Training KW - Occupational safety KW - local communities KW - INE, USA, Pacific Northwest KW - risk reduction KW - Accidents KW - Communications KW - Standards KW - Technology KW - H 1000:Occupational Safety and Health KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20854120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+and+Pollution+Research+International&rft.atitle=Monitoring+and+Predicting+Worker+Risk&rft.au=Kenoyer%2C+J%3BAndrews%2C+W+B%3BStenner%2C+R&rft.aulast=Kenoyer&rft.aufirst=J&rft.date=2001-01-01&rft.volume=8&rft.issue=1&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+and+Pollution+Research+International&rft.issn=09441344&rft_id=info:doi/10.1065%2Fespr2001.11.099.5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - risk reduction; Accidents; Skin; Communications; Injuries; Training; Occupational safety; Standards; local communities; Technology; INE, USA, Pacific Northwest DO - http://dx.doi.org/10.1065/espr2001.11.099.5 ER - TY - JOUR T1 - Overview of the burnup credit activities of the Organization for Economic Cooperation and Development/Nuclear Energy Agency (OECD/NEA) AN - 18315014; 5364394 AB - This article summarises activities of the Organization for Economic Cooperation and Development/Nuclear Energy Agency (OECD/NEA) Expert Group on Burnup Credit Criticality, a subordinate group to the Working Party on Nuclear Criticality Safety (WPNCS). The WPNCS of the OECD/NEA coordinates and carries out work in the domain of criticality safety at the international level. Particular attention is devoted to establishing sound databases required in this area and to addressing issues of high relevance such as burnup credit. The activities of the expert group are aimed toward improving safety and identifying economic solutions to issues concerning the back-end of the fuel cycle. The main objective of the activities of the OECD/NEA Expert Group on Burnup Credit Criticality is to demonstrate that the available criticality safety calculational tools are appropriate for application to irradiated (burned) nuclear fuel systems and that a reasonable safety margin can be established. The method established by the expert group for investigating the physics and predictability of burnup credit is based on the specification and comparison of calculational benchmark problems. A wide range of fuel types, including PWR, BWR, MOX, and VVER fuels, has been or is being addressed by the expert group. The objective and status of each of these benchmark problems is reviewed in this article. It is important to note that the focus of the expert group is the comparison of the results submitted by each participant to assess the capability of commonly used code systems, not to quantify the physical phenomena investigated in the comparisons or to make recommendations for licensing action. JF - International Journal of Radioactive Materials Transport AU - Raap, MCB AU - Nomura, Y AU - Sartori, E AD - Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington, 99352, USA, Michaele.bradyraap@pnl.gov Y1 - 2001 PY - 2001 DA - 2001 SP - 213 EP - 224 VL - 12 IS - 4 SN - 0957-476X, 0957-476X KW - licensing KW - Health & Safety Science Abstracts KW - Management KW - Hazardous materials KW - Nuclear fuels KW - Economics KW - Radioactive materials KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18315014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Radioactive+Materials+Transport&rft.atitle=Overview+of+the+burnup+credit+activities+of+the+Organization+for+Economic+Cooperation+and+Development%2FNuclear+Energy+Agency+%28OECD%2FNEA%29&rft.au=Raap%2C+MCB%3BNomura%2C+Y%3BSartori%2C+E&rft.aulast=Raap&rft.aufirst=MCB&rft.date=2001-01-01&rft.volume=12&rft.issue=4&rft.spage=213&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Radioactive+Materials+Transport&rft.issn=0957476X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Hazardous materials; Radioactive materials; Management; Economics; Nuclear fuels ER - TY - JOUR T1 - An innovative method to determine percutaneous absorption: Real-time breath analysis and physiologically based pharmacokinetic modeling AN - 18256295; 5316285 AB - A breath-inlet device was developed that connects a human subject directly with an ion-trap mass spectrometer system (MS/MS) to provide a continuous, real-time analysis of the individual chemical components in the expired air. In operation, a human volunteer exhales through a one-way breathing valve via a large-diameter tube into a heated glass mixing chamber (3 L volume). The MS/MS, equipped with an atmospheric sampling glow discharge ion source (ASGDI), continually draws samples from the mixing chamber for analysis as often as every 1-2 s. Excess exhaled air is vented from the mixing chamber through a large borehole with negligible flow restriction. Since the subject is directly coupled with the analytical system, there is no sample collection device to alter the integrity of the sample. The human breath-inlet device has been modified to allow for the analysis of exhaled air from experimental animals. The ASGDI-MS/MS technique can simultaneously monitor for a number of volatile organic compounds directly from the exhaled air matrix by performing chemical ionization in air, thus eliminating the preconcentration step that normally precedes exhaled air analysis by GC/MS. This analytical method of detection yields sensitivities on the order of 1-10 parts per billion (ppb) for many of the commonly encountered volatile compounds. Gordon et al. give an example of occupational monitoring using the breath-inlet device. JF - Journal of Toxicology: Cutaneous and Ocular Toxicology AU - Thrall, K D AU - Poet, T S AU - Corley, R A AD - Pacific Northwest National Laboratory, Richland, Washington, USA Y1 - 2001 PY - 2001 DA - 2001 SP - 513 EP - 521 VL - 20 IS - 4 SN - 0731-3829, 0731-3829 KW - man KW - animals KW - pharmacokinetics KW - breath analysis KW - percutaneous absorption KW - Toxicology Abstracts KW - Bioaccumulation KW - Skin KW - Volatiles KW - Respiration KW - Air KW - Organic compounds KW - Mass spectroscopy KW - Occupational exposure KW - X 24222:Analytical procedures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18256295?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Toxicology%3A+Cutaneous+and+Ocular+Toxicology&rft.atitle=An+innovative+method+to+determine+percutaneous+absorption%3A+Real-time+breath+analysis+and+physiologically+based+pharmacokinetic+modeling&rft.au=Thrall%2C+K+D%3BPoet%2C+T+S%3BCorley%2C+R+A&rft.aulast=Thrall&rft.aufirst=K&rft.date=2001-01-01&rft.volume=20&rft.issue=4&rft.spage=513&rft.isbn=&rft.btitle=&rft.title=Journal+of+Toxicology%3A+Cutaneous+and+Ocular+Toxicology&rft.issn=07313829&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Occupational exposure; Volatiles; Organic compounds; Respiration; Air; Mass spectroscopy; Skin; Bioaccumulation ER - TY - JOUR T1 - Inverse reactive transport simulator (INVERTS): an inverse model for contaminant transport with nonlinear adsorption and source terms AN - 18217074; 5290967 AB - A numerically based simulator was developed to assist in the interpretation of complex laboratory experiments examining transport processes of chemical and biological contaminants subject to nonlinear adsorption and/or source terms. The inversion is performed with any of three nonlinear regression methods, Marquardt-Levenberg, conjugate gradient, or quasi-Newton. The governing equations for the problem are solved by the method of finite-differences including any combination of three boundary conditions: 1) Dirichlet, 2) Neumann, and 3) Cauchy. The dispersive terms in the transport equations were solved using the second-order accurate in time and space Crank-Nicolson scheme, while the advective terms were handled using a third-order in time and space, total variation diminishing (TVD) scheme that damps spurious oscillations around sharp concentration fronts. The numerical algorithms were implemented in the computer code INVERTS, which runs on any standard personal computer. Apart from a comprehensive set of test problems, INVERTS was also used to model the elution of a nonradioactive tracer, super(185)Re, in a pressurized unsaturated flow (PUF) experiment with a simulated waste glass for low-activity waste immobilization. Interpretation of the elution profile was best described with a nonlinear kinetic model for adsorption. JF - Environmental Modelling & Software with Environment Data News AU - McGrail, B P AD - Applied Geology and Geochemistry Department, Pacific Northwest National Laboratory, Richland, WA 99352, USA, pete.mcgrail@pnl.gov Y1 - 2001 PY - 2001 DA - 2001 SP - 711 EP - 723 VL - 16 IS - 8 SN - 1364-8152, 1364-8152 KW - Pollution Abstracts KW - Laboratory testing KW - Pollution dispersion KW - Adsorption KW - Simulation KW - Chemical pollution KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18217074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Modelling+%26+Software+with+Environment+Data+News&rft.atitle=Inverse+reactive+transport+simulator+%28INVERTS%29%3A+an+inverse+model+for+contaminant+transport+with+nonlinear+adsorption+and+source+terms&rft.au=McGrail%2C+B+P&rft.aulast=McGrail&rft.aufirst=B&rft.date=2001-01-01&rft.volume=16&rft.issue=8&rft.spage=711&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software+with+Environment+Data+News&rft.issn=13648152&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pollution dispersion; Adsorption; Laboratory testing; Chemical pollution; Simulation ER - TY - JOUR T1 - Striking a New Deal on Climate Change AN - 18216584; 5285663 AB - The Bonn Accord has given the United States the leverage to rewrite its short-term obligations and to lead the way to a long-term energy revolution. JF - Issues in Science and Technology AU - Benedick, R E AD - Joint Global Change Research Institute of the Pacific Northwest National Laboratory and the University of Maryland, USA, richard.benedick@pnl.gov Y1 - 2001 PY - 2001 DA - 2001 SP - 71 EP - 76 VL - 18 IS - 1 SN - 0748-5492, 0748-5492 KW - Bonn Accord KW - Meteorological & Geoastrophysical Abstracts; Pollution Abstracts KW - Climatic changes KW - Emission control KW - Energy consumption KW - International agreements KW - USA KW - Climate and politics KW - Climate and energy resources KW - Pollution control KW - P 9000:ENVIRONMENTAL ACTION KW - M2 551.583:Variations (551.583) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18216584?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Issues+in+Science+and+Technology&rft.atitle=Striking+a+New+Deal+on+Climate+Change&rft.au=Benedick%2C+R+E&rft.aulast=Benedick&rft.aufirst=R&rft.date=2001-01-01&rft.volume=18&rft.issue=1&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Issues+in+Science+and+Technology&rft.issn=07485492&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - USA; International agreements; Climatic changes; Energy consumption; Emission control; Pollution control; Climate and politics; Climate and energy resources ER - TY - BOOK T1 - Simulating the Effects of Forest Roads on Watershed Hydrology AN - 18023257; 5565014 AB - The Distributed Hydrology-Soil-Vegetation Model (DHSVM) was enhanced to represent the interception and redirection of surface and subsurface flow by road cuts and stream channels. Two channel networks are imposed in vector form on the DHSVM grid: one representing roads, the other representing streams. Impacts of the road network on channel flows are modeled explicitly; road location and geometry, along with soil moisture, determine the timing and volume of intercepted water, while road drainage characteristics and culvert placement determine the flow path and travel time to the channel system. The active road drainage/channel network may expand and contract as grid cell water tables rise and fall below their channel beds. The model was applied to a 10-km super(2) experimental watershed to study the influence of road network design on streamflow characteristics. It was demonstrated that even where the road network produces minor changes in streamflow at the basin outlet, subsurface flow interception by roads could alter significantly streamflow in tributary channels. The impact of the road network on channel flows was shown to vary during a storm based on the road design, storm characteristics, topography, local geology, and soil moisture conditions. The impact occurs earlier in a storm when the road network diverts flow into the drainage rather than out of it. When flows are redirected into a channel, the road contributing area quickly increases the current total contributing area for the channel, causing a proportional increase in discharge. If the road design allows some water to pass under the road, there may be only minor impacts early in the storm with increasing impact as watertables rise and subsurface flow begins to be intercepted. When flows are redirected out of the natural drainage the impact is not felt until the channel contributing area extends upslope to the road system. JF - Water Science and Application AU - Wigmosta AU - Perkins, WA A2 - Wigmosta, MS A2 - Burges, SJ (eds) Y1 - 2001///0, PY - 2001 DA - 0, 2001 SP - 17 EP - 143 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA SN - 0875903517 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Sustainability Science Abstracts KW - Land Use KW - Environmental Effects KW - Environmental degradation KW - Resource management KW - Forests KW - Forest hydrology KW - Watersheds KW - Resources Management KW - Land use effects KW - Human impact KW - Experimental Basins KW - Hydrologic Models KW - Roads KW - Interception KW - Environmental effects KW - Hydrology KW - Channel Flow KW - Highway Effects KW - Topography KW - Drainage KW - River discharge KW - Streamflow KW - Watershed hydrology KW - Channel flow KW - Discharges KW - Streamflow changes KW - Soil moisture KW - Q2 09263:Topography and morphology KW - M2 556.535:River regimes (556.535) KW - SW 2060:Effects on water of human nonwater activities KW - M3 1250:Sustainable Transportation/Mobility KW - M2 556.072:Models, analogies, etc. (556.072) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18023257?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/Sustainability+Science+Abstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Wigmosta%3BPerkins%2C+WA&rft.aulast=Wigmosta&rft.aufirst=&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=127&rft.isbn=0875903517&rft.btitle=Simulating+the+Effects+of+Forest+Roads+on+Watershed+Hydrology&rft.title=Simulating+the+Effects+of+Forest+Roads+on+Watershed+Hydrology&rft.issn=1526758X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2016-05-27 ER - TY - JOUR T1 - Improvements in modeling sagebrush concentrations of radioiodine released from the Hanford site AN - 17871089; 5121403 AB - The Hanford Environmental Dose Reconstruction Project estimated the radiation dose to individuals from historical emissions of radioactive materials from the Hanford Site in Washington State. Project validation studies using predicted activity concentrations of super(131)I on sagebrush (Artemisia tridentata) showed a systematic underestimation against historical data during cold weather months, indicating a need for sagebrush model improvement. A deposition model for semi-volatile organic materials presented by Komp and McLachlen is adapted here for gaseous iodine onto sagebrush. The deposition model includes a temperature-dependent term based on an integrated van't Hoff equation. Calibration data for the model are obtained from a release of super(131)I in 1963. Modeling results for releases in 1946 show a good match between historical data and predicted results using the new model. The new model shows improvement over interception-fraction type models, but requires plant-type-specific calibration data. JF - Journal of Environmental Radioactivity AU - Napier, BA AU - Eslinger, P W AU - Nichols, W E AU - Anderlini, L AD - Battelle Memorial Institute, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA 99352, USA, bruce.napier@pnl.gov Y1 - 2001 PY - 2001 DA - 2001 SP - 377 EP - 389 VL - 54 IS - 3 SN - 0265-931X, 0265-931X KW - Artemisia tridentata KW - USA, Hanford Site KW - Pollution Abstracts KW - Pollution monitoring KW - Gases KW - Bioaccumulation KW - Plants KW - Iodine KW - Radioactivity KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17871089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Radioactivity&rft.atitle=Improvements+in+modeling+sagebrush+concentrations+of+radioiodine+released+from+the+Hanford+site&rft.au=Napier%2C+BA%3BEslinger%2C+P+W%3BNichols%2C+W+E%3BAnderlini%2C+L&rft.aulast=Napier&rft.aufirst=BA&rft.date=2001-01-01&rft.volume=54&rft.issue=3&rft.spage=377&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Radioactivity&rft.issn=0265931X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Iodine; Plants; Bioaccumulation; Pollution monitoring; Gases; Radioactivity ER - TY - JOUR T1 - Ferrate Treatment for Removing Chromium from High-Level Radioactive Tank Waste AN - 17812992; 4847825 AB - A method has been developed for removing chromium from alkaline high-level radioactive tank waste. Removing chromium from these wastes is critical in reducing the volume of waste requiring expensive immobilization and deep geologic disposition. The method developed is based on the oxidation of insoluble chromium(III) compounds to soluble chromate using ferrate. This method could be generally applicable to removing chromium from chromium-contaminated solids, when coupled with a subsequent reduction of the separated chromate back to chromium(III). The tests conducted with a simulated Hanford tank sludge indicate that the chromium removal with ferrate is more efficient at 5 M NaOH than at 3 M NaOH. Chromium removal increases with increasing Fe(VI)/Cr(III) molar ratio, but the chromium removal tends to level out for Fe(VI)/Cr(III) greater than 10. Increasing temperature leads to better chromium removal, but higher temperatures also led to more rapid ferrate decomposition. Tests with radioactive Hanford tank waste generally confirmed the simulant results. In all cases examined, ferrate enhanced the chromium removal, with a typical removal of around 60-70% of the total chromium present in the washed sludge solids. The ferrate leachate solutions did not contain significant concentrations of transuranic elements, so these solutions could be disposed as low-activity waste. JF - Environmental Science & Technology AU - Sylvester, P AU - Rutherford, LA Jr AU - Gonzalez-Martin, A AU - Kim, J AU - Rapko, B M AU - Lumetta, G J AD - Pacific Northwest National Laboratory, P.O. Box 999, MSIN P7-25, Richland, WA 99352, USA, gregg.lumetta@pnl.gov Y1 - 2001/01// PY - 2001 DA - Jan 2001 SP - 216 EP - 221 VL - 35 IS - 1 SN - 0013-936X, 0013-936X KW - Health & Safety Science Abstracts; Pollution Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Chromium Radioisotopes KW - Radioactive Wastes KW - Chromium KW - Radioactive wastes KW - Solid Wastes KW - Iron Compounds KW - Performance Evaluation KW - Oxidation KW - Iron compounds KW - Sludge treatment KW - Individual wastes) KW - Solid wastes (see also Scrap KW - Hazardous wastes KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION KW - SW 3060:Water treatment and distribution KW - AQ 00004:Water Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17812992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Ferrate+Treatment+for+Removing+Chromium+from+High-Level+Radioactive+Tank+Waste&rft.au=Sylvester%2C+P%3BRutherford%2C+LA+Jr%3BGonzalez-Martin%2C+A%3BKim%2C+J%3BRapko%2C+B+M%3BLumetta%2C+G+J&rft.aulast=Sylvester&rft.aufirst=P&rft.date=2001-01-01&rft.volume=35&rft.issue=1&rft.spage=216&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Chromium; Oxidation; Radioactive wastes; Sludge treatment; Hazardous wastes; Iron compounds; Individual wastes); Solid wastes (see also Scrap; Chromium Radioisotopes; Iron Compounds; Radioactive Wastes; Performance Evaluation; Solid Wastes ER - TY - JOUR T1 - Biogeochemical processes controlling metal ion fluxes from Fe(III) oxides during reductive phase transformations AN - 1015461763; 2012-048293 JF - LPI Contribution AU - Zachara, J M AU - Fredrickson, J K AU - Smith, S C AU - Kukkadapu, R K AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 EP - abstr. 3794 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - iron oxides KW - cobalt KW - isotopes KW - Shewanella putrefaciens KW - ions KW - Shewanella KW - iron KW - ferrous iron KW - biogenic processes KW - radioactive isotopes KW - transport KW - metals KW - bacteria KW - tracers KW - nickel KW - oxides KW - reduction KW - transformations KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015461763?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Biogeochemical+processes+controlling+metal+ion+fluxes+from+Fe%28III%29+oxides+during+reductive+phase+transformations&rft.au=Zachara%2C+J+M%3BFredrickson%2C+J+K%3BSmith%2C+S+C%3BKukkadapu%2C+R+K%3BAnonymous&rft.aulast=Zachara&rft.aufirst=J&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3794.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 24, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; cobalt; ferrous iron; ions; iron; iron oxides; isotopes; metals; microorganisms; nickel; oxides; radioactive isotopes; reduction; Shewanella; Shewanella putrefaciens; tracers; transformations; transport ER - TY - JOUR T1 - Evaluation of the field exchange capacity of Hanford sediments with implications for (super 137) Cs migration AN - 1015460195; 2012-048297 JF - LPI Contribution AU - Steefel, C I AU - Carroll, S A AU - Yabusaki, S B AU - Lichtner, P C AU - Anonymous Y1 - 2001 PY - 2001 DA - 2001 EP - abstr. 3750 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - United States KW - solute transport KW - leaking underground storage tanks KW - experimental studies KW - Washington KW - cation exchange capacity KW - isotopes KW - alkali metals KW - Hanford Site KW - migration of elements KW - adsorption KW - simulation KW - radioactive isotopes KW - Cs-137 KW - cesium KW - transport KW - metals KW - sediments KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015460195?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=LPI+Contribution&rft.atitle=Evaluation+of+the+field+exchange+capacity+of+Hanford+sediments+with+implications+for+%28super+137%29+Cs+migration&rft.au=Steefel%2C+C+I%3BCarroll%2C+S+A%3BYabusaki%2C+S+B%3BLichtner%2C+P+C%3BAnonymous&rft.aulast=Steefel&rft.aufirst=C&rft.date=2001-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/gold2001/pdf/3750.pdf LA - English DB - GeoRef N1 - Conference title - Eleventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on June 24, 2002 N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - adsorption; alkali metals; cation exchange capacity; cesium; Cs-137; experimental studies; Hanford Site; isotopes; leaking underground storage tanks; metals; migration of elements; radioactive isotopes; sediments; simulation; solute transport; transport; United States; Washington ER -