TY - JOUR T1 - Small angle X-ray scattering from synthetic Yucca Mountain groundwater colloids AN - 52123610; 2002-028902 AB - We demonstrate the use of small-angle x-ray scattering (SAXS) to characterize groundwater-borne colloids that may be important agents in radionuclide transport from high-level radioactive waste repository. The samples included groundwater from the USGS J-13 well, one of which was treated by heating it to 90 degrees C in contact with crushed Topopah Spring Tuff from the Yucca Mountain site. The SAXS measurements used the UNICAT undulator beamline at the Advanced Photon Source at the Argonne National Laboratory. Power-law plots (scattering intensity verses momentum transfer) were fitted to the SAXS data. Colloids in the untreated J-13 groundwater were shown to have a fractal dimension of nearly 3, whereas colloids in the treated groundwater ("EJ-13") have a dimensionality of approximately 2.4 over a length scale of approximately 3 to 300 nm. Similar power-law plots with dimension 3 characterized concurrent SAXS measurements from aqueous suspensions of Na-montmorillonite and NIST Brick Clay (NBS-67). We attribute these results to the sheet silicate layered structure of the clay colloids present in J-13 well water, montmorillonite, and "brick clay" systems. The differences between EJ-13 and as-received J-13 are perhaps owing to exchange of calcium for sodium with the tuff. Radionuclide incorporation into, adsorption onto, or ion exchange with existing groundwater colloids may promote colloidal transport of radionuclides in groundwater. Such radionuclide-bearing colloids could thereby increase the concentrations of actinides in groundwaters and enhance migration into human-accessible aquifers. Our results demonstrate the application of SAXS to study the physical nature of groundwater colloids essential for understanding phenomena related to colloid stability, size, morphology, aggregation, and adsorption properties. JF - Abstracts with Programs - Geological Society of America AU - Fortner, Jeffrey A AU - Mertz, Carol J AU - Buck, Edgar C AU - Jemian, Peter R AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 78 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - silicates KW - clay KW - calcium KW - volcanic rocks KW - power law KW - isotopes KW - igneous rocks KW - characterization KW - radioactive waste KW - ground water KW - Cenozoic KW - radioactive isotopes KW - sediments KW - tuff KW - Yucca Mountain KW - fractals KW - Nevada KW - montmorillonite KW - migration KW - high-level waste KW - alkaline earth metals KW - colloidal materials KW - clastic sediments KW - alkali metals KW - properties KW - adsorption KW - sodium KW - Nye County Nevada KW - Miocene KW - measurement KW - clay minerals KW - aquifers KW - Topopah Spring Member KW - pyroclastics KW - Tertiary KW - Neogene KW - metals KW - sheet silicates KW - wave dispersion KW - waste disposal KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52123610?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Small+angle+X-ray+scattering+from+synthetic+Yucca+Mountain+groundwater+colloids&rft.au=Fortner%2C+Jeffrey+A%3BMertz%2C+Carol+J%3BBuck%2C+Edgar+C%3BJemian%2C+Peter+R%3BAnonymous&rft.aulast=Fortner&rft.aufirst=Jeffrey&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=78&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, 2000 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 - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - adsorption; alkali metals; alkaline earth metals; aquifers; calcium; Cenozoic; characterization; clastic sediments; clay; clay minerals; colloidal materials; fractals; ground water; high-level waste; igneous rocks; isotopes; measurement; metals; migration; Miocene; montmorillonite; Neogene; Nevada; Nye County Nevada; power law; properties; pyroclastics; radioactive isotopes; radioactive waste; sediments; sheet silicates; silicates; sodium; Tertiary; Topopah Spring Member; tuff; United States; volcanic rocks; waste disposal; wave dispersion; Yucca Mountain ER - TY - JOUR T1 - Deciphering orbital maximum and minimum states during the Pleistocene AN - 52103069; 2002-039250 AB - Milankovitch orbital insolation changes are thought to play a major role in modulating Earth climates throughout geologic time. During the Pleistocene they appear to be important in the waxing and waning of massive continental ice sheets over the Northern Hemisphere, while during earlier ice-free periods the insolation changes are likely important in determining sedimentary deposition, and hence cycles. Defining the effects of maximal and minimal insolation states (relative to mean or "normal" values) is thus of considerable importance. Because the insolation changes vary by latitude and by season, this is, however, not straightforward. Certain orbital configurations will have maximal impact at some latitudes and time of year, but other configurations will be more important for other locations and times. As an example of this, climate model runs (made using the NCAR CCM3) show that maximum effects in the low latitudes occur when tilt (obliquity) is low but eccentricity is high and perihelion occurs in summer. This will lead to a more vigorous monsoon. Minimum effects (e.g., weakest monsoon) will occur when tilt is high, eccentricity is low, and perihelion is in winter. In the high latitudes, maximum effects (e.g., net ice ablation) will occur with high tilt, perihelion in summer, and high eccentricity, while minimum effects (e.g., ice accumulation) will occur with low tilt, perihelion in winter, and high eccentricity. Though these obliquity modifications are essentially second-order effects, they are nonetheless large enough to cause significant changes in the climate model results and hence the timing of local sediment yields relative to sea level changes. JF - Abstracts with Programs - Geological Society of America AU - Moore, Thomas L AU - Oglesby, Robert J AU - Perlmutter, Martin A AU - Plotnick, Roy E AU - Mathews, Martin D AU - Maasch, Kirk A AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 95 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - climatic controls KW - cyclostratigraphy KW - Quaternary KW - paleoclimatology KW - ice sheets KW - eccentricity KW - models KW - Cenozoic KW - sea-level changes KW - sediment yield KW - Milankovitch theory KW - Pleistocene KW - insolation KW - seasonal variations KW - glacial geology KW - climate KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52103069?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Deciphering+orbital+maximum+and+minimum+states+during+the+Pleistocene&rft.au=Moore%2C+Thomas+L%3BOglesby%2C+Robert+J%3BPerlmutter%2C+Martin+A%3BPlotnick%2C+Roy+E%3BMathews%2C+Martin+D%3BMaasch%2C+Kirk+A%3BAnonymous&rft.aulast=Moore&rft.aufirst=Thomas&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=95&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, 2000 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 - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Cenozoic; climate; climatic controls; cyclostratigraphy; eccentricity; glacial geology; ice sheets; insolation; Milankovitch theory; models; paleoclimatology; Pleistocene; Quaternary; sea-level changes; seasonal variations; sediment yield ER - TY - JOUR T1 - Evaluating phytoremediation design through numerical groundwater modeling AN - 52084272; 2002-059094 AB - Phytoremedial designs that are focused on groundwater may have a goal of destroying contaminants and/or providing hydraulic containment. In either case, an important aspect of the planning is the evaluation of the relationships among the expected water use of the phreatophytes, the varying seasonal hydrologic conditions, and the hydrogeologic complexity of the subsurface. Numerical groundwater modeling is well suited for addressing these interactions and providing a basis for the design of a plantation, because such models can account for transient groundwater flux and transpiration, three-dimensional subsurface features, and various hydraulic boundary conditions.This study focuses on the phytoremediation system at Argonne National Laboratory, Argonne, Illinois. Of the 800 hybrid poplars and willows planted in summer 1999, half of them address a groundwater plume downgradient of a source area. Rather than a simple pilot study, this site is complex in terms of both history and hydrogeology. Instead of a surficial unconfined aquifer, the plume is in a thin sand and gravel unit beneath more than 25 feet of low-permeability till; the trees were therefore specially installed in lined, large-diameter boreholes.The resulting calibrated flow model illustrates the necessity of modeling to incorporate the site's hydrology, geology, and water usage, and the solution is applied to evaluating the potential for hydraulic control. JF - Abstracts with Programs - Geological Society of America AU - Quinn, John J AU - Negri, M Cristina AU - Wozniak, James B AU - Hinchman, Ray R AU - Moos, Lawrence P AU - Gatliff, Edward G AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 126 EP - 127 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - Spermatophyta KW - Plantae KW - numerical models KW - three-dimensional models KW - Populus KW - pollution KW - calibration KW - bioremediation KW - boundary conditions KW - remediation KW - ground water KW - evaluation KW - aquifers KW - models KW - planning KW - seasonal variations KW - phytoremediation KW - unconfined aquifers KW - design KW - Angiospermae KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52084272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+phytoremediation+design+through+numerical+groundwater+modeling&rft.au=Quinn%2C+John+J%3BNegri%2C+M+Cristina%3BWozniak%2C+James+B%3BHinchman%2C+Ray+R%3BMoos%2C+Lawrence+P%3BGatliff%2C+Edward+G%3BAnonymous&rft.aulast=Quinn&rft.aufirst=John&rft.date=2000-01-01&rft.volume=32&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, 2000 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 - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Angiospermae; aquifers; bioremediation; boundary conditions; calibration; design; evaluation; ground water; models; numerical models; phytoremediation; planning; Plantae; pollution; Populus; remediation; seasonal variations; Spermatophyta; three-dimensional models; unconfined aquifers ER - TY - JOUR T1 - Three-dimensional solute transport modeling as the basis for long-term groundwater monitoring recommendations at Murdock, Nebraska AN - 52049641; 2002-077775 JF - Abstracts with Programs - Geological Society of America AU - Shafer, John M AU - Walker, John L AU - Sedivy, Robert A AU - Burton, Jacqueline C AU - Nashold, Barney W AU - Dennis, Clyde B AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 138 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - solute transport KW - chlorinated hydrocarbons KW - QuickSite KW - contaminant plumes KW - site exploration KW - characterization KW - calibration KW - ground water KW - halogenated hydrocarbons KW - geochemistry KW - migration KW - monitoring KW - numerical models KW - three-dimensional models KW - solutes KW - pollution KW - MODFLOW KW - hydrochemistry KW - carbon tetrachloride KW - models KW - organic compounds KW - Murdock Nebraska KW - Nebraska KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52049641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+solute+transport+modeling+as+the+basis+for+long-term+groundwater+monitoring+recommendations+at+Murdock%2C+Nebraska&rft.au=Shafer%2C+John+M%3BWalker%2C+John+L%3BSedivy%2C+Robert+A%3BBurton%2C+Jacqueline+C%3BNashold%2C+Barney+W%3BDennis%2C+Clyde+B%3BAnonymous&rft.aulast=Shafer&rft.aufirst=John&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=138&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, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2014-03-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - calibration; carbon tetrachloride; characterization; chlorinated hydrocarbons; contaminant plumes; geochemistry; ground water; halogenated hydrocarbons; hydrochemistry; migration; models; MODFLOW; monitoring; Murdock Nebraska; Nebraska; numerical models; organic compounds; pollution; QuickSite; site exploration; solute transport; solutes; three-dimensional models; United States ER - TY - JOUR T1 - Post-audit modeling of the TCAAP SVE system AN - 52048483; 2002-077778 AB - This project used the T2VOC computer code to evaluate an SVE system that has been operating for 15 years. Soil vapor extraction (SVE) systems are a popular, efficient method of remeadiating volatile organic contamination (VOC) in the unsaturated (vadose) zone. However, field installations have shown the initial contaminant extraction rates are high and drop rapidly in an asymptotic manner (long-term tailing behavior). The tailing effect in field SVE systems has been extensively studied. Some believe tailing is caused by complex chemical and physical processes (e.g., nonequilibrium partitioning of the gas phase). Others feel that tailing is produced by complex geology of the field sites. This study demonstrates that the tailing behavior seen at TCAAP is produced by extracting volatile contaminant vapors from VOC contaminated groundwater in the saturated (phreatic) zone. An SVE system with 39 extraction wells was installed and began operation in 1986 at a VOC contaminated site at TCAAP. Approximately 100,000 pounds (45,350 kg) of VOCs were removed. The peak extraction rate was 1,300 pounds (590 kg) per day on the third day of operations. By 1998, the mass removal rate approached a near asymptotic value of about 2 pounds (0.9 kg) per day, nearly three orders of magnitude less than the initial value. A number of phenomena were modeled to determine which was most likely to produce the long-term tailing observed. Most of the simulations resulted in mass removal curves that could approximate the extraction curve for either early or late time. However, the simulations that exhibited long tails did not duplicate the initial rapid drop in extraction rates observed and the simulations that matched the early behavior of the system did not match the long-term behavior. Only simulations which contained contaminated groundwater were able to match observed results. Recent field work supports these findings. JF - Abstracts with Programs - Geological Society of America AU - Williams, Gus AU - May, Ira P AU - Jiang, Zenhua AU - Tomasko, David AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 139 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - soils KW - processes KW - behavior KW - soil vapor extraction KW - data processing KW - unsaturated zone KW - pollution KW - remediation KW - ground water KW - models KW - partitioning KW - volatiles KW - organic compounds KW - volatile organic compounds KW - water wells KW - tailings KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52048483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Post-audit+modeling+of+the+TCAAP+SVE+system&rft.au=Williams%2C+Gus%3BMay%2C+Ira+P%3BJiang%2C+Zenhua%3BTomasko%2C+David%3BAnonymous&rft.aulast=Williams&rft.aufirst=Gus&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=139&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, 2000 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 - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - behavior; data processing; ground water; models; organic compounds; partitioning; pollution; processes; remediation; soil vapor extraction; soils; tailings; unsaturated zone; volatile organic compounds; volatiles; water wells ER - TY - JOUR T1 - Surface processes for pH dependent orthoclase dissolution; in situ assignment of mechanism by atomic force microscopy and X-ray reflectivity AN - 52033411; 2003-008671 AB - Feldspars are abundant crustal minerals and provide common solutes in natural waters. Feldspar-water interactions are characterized by dissolution that is incongruent in acidic but congruent in basic environments. There have been few direct observations of dissolving feldspar surfaces and little is know about the associated molecular scale interfacial processes.We examined (001) orthoclase cleavage surfaces in situ during dissolution under extreme pH conditions using force probe microscope (AFM) and synchrotron radiation. AFM revealed the development of a surface coating following the initial roughening at pH 1.1 and slow solution flow. The coating was not observed when flow became fast, suggesting a possible transport control. Acidic dissolution was characterized by lack of step motion and extensive formation of terrace nanopores. High proton affinity of aluminum surface sites seems responsible for these interfacial processes. At pH 12. 9, step motion and etch pit formation were the dominant dissolution mode without development of surface coating or terrace nanopores, regardless of flow rate. Moreover, monolayer steps were seen to split, indicating the high reactivity of edge sites. X-ray reflectivity, measured as a function of time, showed a characteristic damped oscillatory pattern over a range of temperature and flow rates at low pH, with estimated rates approximately consistent (within 50%) with previous results for powder experiments under steady states. This behavior is indicative of a surface with increased roughness and/or modified termination and implies that surface evolution was uniform over this range of conditions. At high pH, reflectivity exhibited a different pattern indicative of a congruent layer-by-layer mechanism, suggests that surface roughness and composition maintain unchanged during dissolution. These new observations demonstrate that orthoclase dissolution is controlled by at least two distinct pH-dependent mechanisms. The dominant mechanism at low pH is effective across the entire surface, but becomes selectively operative at steps and defects when pH is high. These findings will be discussed in terms of the surface structure of orthoclase. JF - Abstracts with Programs - Geological Society of America AU - Teng, Henry H AU - Fenter, Paul A AU - Sturchio, Neil C AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 213 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - silicates KW - processes KW - in situ KW - structural analysis KW - solutes KW - mechanism KW - crystal structure KW - solution KW - synchrotron radiation KW - X-ray data KW - orthoclase KW - atomic force microscopy data KW - alkali feldspar KW - interfaces KW - framework silicates KW - foliation KW - feldspar group KW - cleavage KW - pH KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52033411?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Surface+processes+for+pH+dependent+orthoclase+dissolution%3B+in+situ+assignment+of+mechanism+by+atomic+force+microscopy+and+X-ray+reflectivity&rft.au=Teng%2C+Henry+H%3BFenter%2C+Paul+A%3BSturchio%2C+Neil+C%3BAnonymous&rft.aulast=Teng&rft.aufirst=Henry&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=213&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, 2000 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 - alkali feldspar; atomic force microscopy data; cleavage; crystal structure; feldspar group; foliation; framework silicates; in situ; interfaces; mechanism; orthoclase; pH; processes; silicates; solutes; solution; structural analysis; synchrotron radiation; X-ray data ER - TY - JOUR T1 - Climatic extremes and response of the global depositional system AN - 51975400; 2003-046540 AB - Extreme global climate patterns occur when atmospheric circulation responds to major changes in the seasonal distribution of insolation forced by Milankovitch (orbital) cycles. Climatic conditions can shift relatively large distances (up to 30 degrees latitude) in geologically short intervals (<10 kyrs). As a consequence, substantial, rapid changes can occur in weathering, runoff, lake level and sediment yield within individual drainage basins. Analysis of yield as a function of climate and elevation, determined from modern rivers, indicates that yield from a single drainage area may vary up to seventy times during one orbital cycle, depending on the climatic succession and topography. This would create a distinct sediment supply cycle. Overall, highest yields occur during shifts from arid to subhumid climates. Additionally, weathered sediment can vary from gravel- to clay-dominated during a single climate cycle. Climatic succession and the phase relationships of lake level and sediment supply cycles to orbital cycles are functions of geographic position. Consequently, maximum sediment yield and lake level can occur at any phase of an orbital cycle depending on the climate succession. In addition, because glacioeustatic sea level tends to be in phase with orbital cycles while sediment supply may not be, the phase relationship between sediment and sea level cycles also varies with location. The phase relationship between water level and large amplitude sediment cycles may impact the interpretation of stratigraphy. In sequence stratigraphy, certain lithologies and depositional regimes are associated with specific systems tracts and their inherent timing with respect to sea level. Although recognized as important, variability of lithology caused by changes in sediment yield is generally neglected in application. However, the timing of sediment flux relative to sea/lake level has an effect on the distribution of sand and shale prone intervals within systems tracts and the timing and occurrence of stratigraphic surfaces. JF - Abstracts with Programs - Geological Society of America AU - Perlmutter, Martin A AU - Matthews, Martin D AU - Moore, Thomas L AU - Plotnick, Roy E AU - Oglesby, Robert J AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 313 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - sequence stratigraphy KW - cycles KW - lake-level changes KW - cyclostratigraphy KW - shale KW - paleohydrology KW - global KW - sediment supply KW - sandstone KW - paleoclimatology KW - weathering KW - sea-level changes KW - topography KW - sedimentary rocks KW - deposition KW - sediment yield KW - runoff KW - Milankovitch theory KW - seasonal variations KW - interpretation KW - eustasy KW - clastic rocks KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51975400?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Climatic+extremes+and+response+of+the+global+depositional+system&rft.au=Perlmutter%2C+Martin+A%3BMatthews%2C+Martin+D%3BMoore%2C+Thomas+L%3BPlotnick%2C+Roy+E%3BOglesby%2C+Robert+J%3BAnonymous&rft.aulast=Perlmutter&rft.aufirst=Martin&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=313&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, 2000 annual meeting N1 - Copyright - GeoRef, Copyright 2014, 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 - 2014-03-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - clastic rocks; cycles; cyclostratigraphy; deposition; eustasy; global; interpretation; lake-level changes; Milankovitch theory; paleoclimatology; paleohydrology; runoff; sandstone; sea-level changes; seasonal variations; sediment supply; sediment yield; sedimentary rocks; sequence stratigraphy; shale; topography; weathering ER - TY - JOUR T1 - Impact of geology on the penetration and distribution of contaminants in the vadose zone and groundwater of the Hanford Nuclear Reservation, Richland, Washington AN - 51883572; 2004-015028 JF - Abstracts with Programs - Geological Society of America AU - Young, Alvin L AU - Macdonell, Margaret AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 SP - 489 PB - Geological Society of America (GSA), Boulder, CO VL - 32 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - protection KW - Washington KW - medical geology KW - isotopes KW - Columbia River KW - unsaturated zone KW - Richland Washington KW - pollution KW - Hanford Site KW - environmental effects KW - remediation KW - ground water KW - history KW - spatial distribution KW - radioactive isotopes KW - transport KW - Benton County Washington KW - design KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51883572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Impact+of+geology+on+the+penetration+and+distribution+of+contaminants+in+the+vadose+zone+and+groundwater+of+the+Hanford+Nuclear+Reservation%2C+Richland%2C+Washington&rft.au=Young%2C+Alvin+L%3BMacdonell%2C+Margaret%3BAnonymous&rft.aulast=Young&rft.aufirst=Alvin&rft.date=2000-01-01&rft.volume=32&rft.issue=7&rft.spage=489&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, 2000 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 - Benton County Washington; Columbia River; design; environmental effects; ground water; Hanford Site; history; isotopes; medical geology; pollution; protection; radioactive isotopes; remediation; Richland Washington; spatial distribution; transport; United States; unsaturated zone; Washington ER - TY - JOUR T1 - Toward complete isotopic analysis of individual presolar silicon carbide grains: C, N, Si, Sr, Zr, Mo, and Ba in single grains of type X AN - 51583127; 2006-044264 AB - The isotopic compositions of Sr, Ba, Zr and Mo in single presolar SiC grains from supernovae are different from those expected from either of the dominant heavy element neutron capture nucleosynthesis mechanisms, the s-process and the r-process. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Pellin, M J AU - Calaway, W F AU - Davis, A M AU - Lewis, R S AU - Amari, S AU - Clayton, R N AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 EP - abstr. no. 1917 PB - Lunar and Planetary Science Conference, Houston, TX VL - 31 KW - stony meteorites KW - laser methods KW - ion probe data KW - isotopes KW - enrichment KW - mass spectra KW - zirconium KW - interplanetary space KW - carbides KW - silicon KW - ions KW - nitrogen KW - Murchison Meteorite KW - meteorites KW - cesium KW - barium KW - molybdenum KW - carbon KW - alloys KW - spectra KW - chondrites KW - chemical composition KW - alkaline earth metals KW - supernovas KW - alkali metals KW - laser ablation KW - cosmochemistry KW - carbonaceous chondrites KW - Zr-96 KW - grains KW - stars KW - metals KW - Cs-133 KW - CM chondrites KW - strontium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51583127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Toward+complete+isotopic+analysis+of+individual+presolar+silicon+carbide+grains%3A+C%2C+N%2C+Si%2C+Sr%2C+Zr%2C+Mo%2C+and+Ba+in+single+grains+of+type+X&rft.au=Pellin%2C+M+J%3BCalaway%2C+W+F%3BDavis%2C+A+M%3BLewis%2C+R+S%3BAmari%2C+S%3BClayton%2C+R+N%3BAnonymous&rft.aulast=Pellin&rft.aufirst=M&rft.date=2000-01-01&rft.volume=31&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/lpsc2000/pdf/1917.pdf LA - English DB - GeoRef N1 - Conference title - Thirty-first lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; alloys; barium; carbides; carbon; carbonaceous chondrites; cesium; chemical composition; chondrites; CM chondrites; cosmochemistry; Cs-133; enrichment; grains; interplanetary space; ion probe data; ions; isotopes; laser ablation; laser methods; mass spectra; metals; meteorites; molybdenum; Murchison Meteorite; nitrogen; silicon; spectra; stars; stony meteorites; strontium; supernovas; zirconium; Zr-96 ER - TY - JOUR T1 - Regulatory proposal that allows more flexible alternatives to the disposition of petroleum exploration and production drill cuttings in Mexico AN - 51389515; 2007-087227 AB - The Mexican regulations (reglamentos and normas) that promulgate the Ecological Balance and Environmental Protection General Act (LGEEPA), describe the requirements for the management and disposition of hazardous materials and wastes. However, deficiencies in definitions, analytical methods, procedures and standards in relation to petroleum exploration and production wastes, have limited the flexibility and application of cost-effective innovative technology and treatment methods to the management and disposition of dill cuttings. This paper describes the development of regulatory proposals that allows more flexibility in the management and disposition of drill cuttings while maintaining their hazardous waste classification. These proposals are based on the integration of standard methods used in States in the U.S. and other countries and on proposed soil clean-up standards that are based on carbon fraction methods. JF - Annual International Petroleum Environmental Conference AU - Rivera, Rafael G AU - Veil, John AU - Langhus, Bruce AU - Solis, Ricardo AU - Barriguete, Alejandro AU - Chavez, Ramon AU - Travis, Curtis C AU - Calva, Laura A2 - Sublette, Kerry L. Y1 - 2000 PY - 2000 DA - 2000 SP - 260 EP - 278 PB - Integrated Petroleum Environmental Consortium VL - 7 KW - soils KW - protection KW - petroleum exploration KW - toxic materials KW - technology KW - pollutants KW - regulations KW - pollution KW - petroleum KW - production KW - ground water KW - environmental management KW - Mexico KW - soil pollution KW - risk assessment KW - ecology KW - waste disposal KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51389515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+International+Petroleum+Environmental+Conference&rft.atitle=Regulatory+proposal+that+allows+more+flexible+alternatives+to+the+disposition+of+petroleum+exploration+and+production+drill+cuttings+in+Mexico&rft.au=Rivera%2C+Rafael+G%3BVeil%2C+John%3BLanghus%2C+Bruce%3BSolis%2C+Ricardo%3BBarriguete%2C+Alejandro%3BChavez%2C+Ramon%3BTravis%2C+Curtis+C%3BCalva%2C+Laura&rft.aulast=Rivera&rft.aufirst=Rafael&rft.date=2000-01-01&rft.volume=7&rft.issue=&rft.spage=260&rft.isbn=&rft.btitle=&rft.title=Annual+International+Petroleum+Environmental+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 7th international petroleum environmental conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 26 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #06796 N1 - SubjectsTermNotLitGenreText - ecology; environmental management; ground water; Mexico; petroleum; petroleum exploration; pollutants; pollution; production; protection; regulations; risk assessment; soil pollution; soils; technology; toxic materials; waste disposal ER - TY - JOUR T1 - Zr and Mo isotopic constraints on the origins of unusual types of presolar SiC grains AN - 51332529; 2006-044263 AB - Zr and Mo isotopic compositions of 3 Type B and a unique presolar SiC grains are inconsistent with proposed stellar origins of these kinds of grains. A Type Z grain has a Mo isotopic composition consistent with its proposed origin. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Pellin, M J AU - Davis, A M AU - Calaway, W F AU - Lewis, R S AU - Clayton, R N AU - Amari, S AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 EP - abstr. no. 1934 PB - Lunar and Planetary Science Conference, Houston, TX VL - 31 KW - ion probe data KW - isotopes KW - mass spectra KW - zirconium KW - interplanetary space KW - carbides KW - silicon KW - ions KW - stable isotopes KW - Si-28 KW - silicon carbide KW - molybdenum KW - alloys KW - spectra KW - synthesis KW - chemical composition KW - alkaline earth metals KW - Si-30 KW - Mo-94 KW - isotope ratios KW - supernovas KW - cosmochemistry KW - cosmic dust KW - grains KW - stars KW - metals KW - Si-30/Si-28 KW - strontium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51332529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Zr+and+Mo+isotopic+constraints+on+the+origins+of+unusual+types+of+presolar+SiC+grains&rft.au=Pellin%2C+M+J%3BDavis%2C+A+M%3BCalaway%2C+W+F%3BLewis%2C+R+S%3BClayton%2C+R+N%3BAmari%2C+S%3BAnonymous&rft.aulast=Pellin&rft.aufirst=M&rft.date=2000-01-01&rft.volume=31&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/lpsc2000/pdf/1934.pdf LA - English DB - GeoRef N1 - Conference title - Thirty-first lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2006-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alloys; carbides; chemical composition; cosmic dust; cosmochemistry; grains; interplanetary space; ion probe data; ions; isotope ratios; isotopes; mass spectra; metals; Mo-94; molybdenum; Si-28; Si-30; Si-30/Si-28; silicon; silicon carbide; spectra; stable isotopes; stars; strontium; supernovas; synthesis; zirconium ER - TY - JOUR T1 - Timescales of fluid infiltration, mineral reaction, and (super 18) O/ (super 16) O exchange between olivine and calcite in marbles of the Alta Stock thermal aureole, Utah AN - 50064921; 2007-010300 JF - Abstract Volume (Geological Association of Canada) AU - Bowman, John R AU - Valley, John W AU - Cook, Stephen J AU - Huang, Saijin AU - Anonymous Y1 - 2000 PY - 2000 DA - 2000 EP - unpaginated PB - Geological Association of Canada, Waterloo, ON VL - 25 SN - 1716-6098, 1716-6098 KW - United States KW - silicates KW - halides KW - retrograde metamorphism KW - periclase KW - geologic thermometry KW - fluorides KW - oxygen KW - isotopes KW - olivine group KW - fluid phase KW - stable isotopes KW - temperature KW - dolomite KW - contact metamorphism KW - olivine KW - metamorphic rocks KW - orthosilicates KW - oxides KW - prograde metamorphism KW - Alta Utah KW - isotope ratios KW - Salt Lake County Utah KW - O-18/O-16 KW - humite KW - metamorphism KW - forsterite KW - calcite KW - time scales KW - nesosilicates KW - infiltration KW - aureoles KW - marbles KW - Utah KW - carbonates KW - permeability KW - Alta Stock KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50064921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Timescales+of+fluid+infiltration%2C+mineral+reaction%2C+and+%28super+18%29+O%2F+%28super+16%29+O+exchange+between+olivine+and+calcite+in+marbles+of+the+Alta+Stock+thermal+aureole%2C+Utah&rft.au=Bowman%2C+John+R%3BValley%2C+John+W%3BCook%2C+Stephen+J%3BHuang%2C+Saijin%3BAnonymous&rft.aulast=Bowman&rft.aufirst=John&rft.date=2000-01-01&rft.volume=25&rft.issue=&rft.spage=&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 - Geoscience 2000; the millennium geoscience summit N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2007-01-01 N1 - Number of references - 1 N1 - PubXState - ON N1 - Last updated - 2012-06-07 N1 - CODEN - PAACD6 N1 - SubjectsTermNotLitGenreText - Alta Stock; Alta Utah; aureoles; calcite; carbonates; contact metamorphism; dolomite; fluid phase; fluorides; forsterite; geologic thermometry; halides; humite; infiltration; isotope ratios; isotopes; marbles; metamorphic rocks; metamorphism; nesosilicates; O-18/O-16; olivine; olivine group; orthosilicates; oxides; oxygen; periclase; permeability; prograde metamorphism; retrograde metamorphism; Salt Lake County Utah; silicates; stable isotopes; temperature; time scales; United States; Utah ER - TY - JOUR T1 - Integrated Development of Cleanup Criteria AN - 20255491; 8803222 AB - The U.S. Department of Energy (DOE) is conducting a massive cleanup program at sites across the country that were contaminated by past operations. The determination of appropriate residual levels for contaminants at these sites is directly tied to future land use plans and represents the endpoint of concern for many stakeholders. It is also a critical issue for budgeting the cleanup dollars, which are projected to exceed $ 200 billion for the entire program. The concentrations of contaminants to be left behind in soil and water are typically determined by combining applicable standards with the results of site-specific risk assessments. While the U.S. Environmental Protection Agency has promulgated some standards for water, few exist for soil? which has been estimated to account for more than 50 million cubic meters of contaminated material across the DOE complex. Thus, site-specific risk analyses that incorporate relevant exposure scenarios and fate factors are essential to sound decision making. Oversight agencies often pursue conservative assumptions for exposure conditions even when the likelihood is low. For example, large portions of many sites are expected to continue as ecological rather than residential areas, yet cleanup levels are often determined on the basis of assumed residential exposures. Nevertheless, conservative analyses can be used to evaluate the practicability and cost-effectiveness of various cleanup options. At many sites, the consideration of natural attenuation as a reasonable response option for "self-mitigating" radioactive contamination (such as tritium in groundwater) has also been an issue for some oversight agencies, because of a disinclination to support such passive measures in-volving institutional controls over decades to centuries. This paper high-lights several key issues associated with developing cleanup levels at DOE sites and illustrates information for plutonium. JF - Environmental Science and Pollution Research International AU - MacDonell, M AU - Peterson, J AU - Klemic, G AU - Elcock, D AU - Monette, F AU - Picel, K AD - Argonne National Laboratory, Environmental, Assessment Division, 9700 S. Cass Avenue, Argonne, IL 60439, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 21 EP - 28 VL - 7 IS - 2 SN - 0944-1344, 0944-1344 KW - Pollution Abstracts; Environment Abstracts KW - Risk assessment KW - Soil KW - Cost-benefit analysis KW - natural attenuation KW - stakeholders KW - Plutonium KW - Radioactive pollution KW - Land use KW - EPA KW - USA KW - Tritium KW - Residential areas KW - Groundwater KW - ENA 03:Energy KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20255491?accountid=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+and+Pollution+Research+International&rft.atitle=Integrated+Development+of+Cleanup+Criteria&rft.au=MacDonell%2C+M%3BPeterson%2C+J%3BKlemic%2C+G%3BElcock%2C+D%3BMonette%2C+F%3BPicel%2C+K&rft.aulast=MacDonell&rft.aufirst=M&rft.date=2000-01-01&rft.volume=7&rft.issue=2&rft.spage=21&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+and+Pollution+Research+International&rft.issn=09441344&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Risk assessment; Cost-benefit analysis; Soil; EPA; Plutonium; Tritium; natural attenuation; Residential areas; Radioactive pollution; Groundwater; stakeholders; Land use; USA ER - TY - JOUR T1 - Integrated Risk and Impact Assessments for Complex Contaminated Sites AN - 20238716; 8803221 AB - Risks and other potential impacts are assessed for contaminated sites in order to determine appropriate actions for cleanup and long-term management. These environmental management decisions have traditionally focused on risks to human and ecological health, without explicit incorporation of sociocultural and economic impacts for local communities. Similarly, current environmental regulations typically define requirements based on individual contaminants in individual media, such as air or water. However, the interrelationships among different resources and potential effects of environmental contaminants are beginning to be acknowledged in environmental protection programs, and a holistic process is emerging for considering impacts across disciplines and over space and time. This paper discusses some of the conceptual issues associated with inte-grating risk and impact assessments for large contaminated sites, as illustrated by application to complex U.S. Department of Energy sites being cleaned up under the Department double prime s environ-mental management program. JF - Environmental Science and Pollution Research International AU - MacDonell, M AU - Habegger, L AD - Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA, macdonell@anl.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 13 EP - 20 VL - 7 IS - 2 SN - 0944-1344, 0944-1344 KW - Pollution Abstracts; Environment Abstracts KW - USA KW - Economics KW - environmental regulations KW - Environment management KW - local communities KW - Environmental protection KW - P 9000:ENVIRONMENTAL ACTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20238716?accountid=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+and+Pollution+Research+International&rft.atitle=Integrated+Risk+and+Impact+Assessments+for+Complex+Contaminated+Sites&rft.au=MacDonell%2C+M%3BHabegger%2C+L&rft.aulast=MacDonell&rft.aufirst=M&rft.date=2000-01-01&rft.volume=7&rft.issue=2&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+and+Pollution+Research+International&rft.issn=09441344&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Economics; environmental regulations; local communities; Environment management; Environmental protection; USA ER - TY - JOUR T1 - Lithologic discrimination and structural mapping of Cretaceous volcanic rocks, using Landsat thematic mapper data, Wadi Natash area, Eastern Desert, Egypt AN - 1824214656; 2016-082734 JF - Agenda Abstracts - International Conference on the Geology of the Arab World (GAW) AU - Madani, A AU - Sultan, M AU - El-Sharkawi, M AU - Surour, A A AU - Youssef, El Sayed A A Y1 - 2000 PY - 2000 DA - 2000 SP - 8 PB - [varies], [varies] VL - 5 KW - petrology KW - volcanic rocks KW - North Africa KW - Cretaceous KW - igneous rocks KW - mapping KW - Mesozoic KW - Egypt KW - Landsat KW - Wadi Natash KW - Africa KW - Eastern Desert KW - remote sensing KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824214656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agenda+Abstracts+-+International+Conference+on+the+Geology+of+the+Arab+World+%28GAW%29&rft.atitle=Lithologic+discrimination+and+structural+mapping+of+Cretaceous+volcanic+rocks%2C+using+Landsat+thematic+mapper+data%2C+Wadi+Natash+area%2C+Eastern+Desert%2C+Egypt&rft.au=Madani%2C+A%3BSultan%2C+M%3BEl-Sharkawi%2C+M%3BSurour%2C+A+A%3BYoussef%2C+El+Sayed+A+A&rft.aulast=Madani&rft.aufirst=A&rft.date=2000-01-01&rft.volume=5&rft.issue=&rft.spage=8&rft.isbn=&rft.btitle=&rft.title=Agenda+Abstracts+-+International+Conference+on+the+Geology+of+the+Arab+World+%28GAW%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fifth international conference on the Geology of the Arab World (GAW-5) N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Availability - Geological Society London, Library, London, United Kingdom N1 - Last updated - 2016-09-29 N1 - CODEN - #07968 N1 - SubjectsTermNotLitGenreText - Africa; Cretaceous; Eastern Desert; Egypt; igneous rocks; Landsat; mapping; Mesozoic; North Africa; petrology; remote sensing; volcanic rocks; Wadi Natash ER - TY - JOUR T1 - The air-water exchange of C sub(15)-C sub(31) n-alkanes in a precipitation-dominated seepage lake AN - 17723449; 4793741 AB - The air-water exchange of semivolatile n-alkanes in Crystal Lake, a small precipitation-dominated seepage lake in northern Wisconsin, was investigated with modeling and mass balance approaches. The results suggest that atmospheric deposition contributes approximately 80% of the allochthonous input of n-alkanes to Crystal Lake. Atmospheric deposition accounts for about 50% of the total annual input of n-alkanes to Crystal Lake, and an additional 30% is contributed by in situ production of planktonic n-alkanes ( capital sigma C sub(15), C sub(17), C sub(19)). Contributions to the particle dry flux of terrestrial n-alkanes ( capital sigma C sub(25), C sub(27), C sub(29), C sub(31)) by pine pollen dispersal and by dry deposition of particles containing leaf waxes are similar in magnitude and constitute about 60% of the atmospheric input, with particle wet deposition being responsible for the remainder. Approximately 30% of the atmospheric input of the n-alkanes occurs during a two-week episode of pine pollen dispersal in spring. Concentration gradients between gaseous n-alkanes in the atmosphere and dissolved n-alkanes in the water column of Crystal Lake favor volatilization of n-alkanes from the lake surface; however, distributions of dissolved n-alkanes are characteristic of bacteria, and therefore are contained in organic matter and not available for air-water exchange. The estimated net atmospheric input of terrestrial n-alkanes is about 20% less than the settling sediment flux. Additional allochthonous sources of the terrestrial n-alkanes might include diffuse surface runoff or episodes of coarse-particle deposition. The discrepancies in the results from the modeling and mass balance approaches indicate that direct measurements of air-water exchange rates and measurements of the seasonal variations of particle size distributions in air and rain would greatly improve our ability to quantify air-water exchange rates of n-alkanes. JF - Atmospheric Environment AU - Doskey, P V AD - Environmental Research Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA, pvdoskey@anl.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 3981 EP - 3993 VL - 34 IS - 23 SN - 1352-2310, 1352-2310 KW - USA, Wisconsin, Crystal L. KW - alkanes KW - Water Resources Abstracts; Pollution Abstracts KW - Atmospheric Chemistry KW - Particle size KW - Lakes KW - Air-water Interfaces KW - Atmospheric chemistry KW - Deposition KW - Air-water interactions KW - Organic Compounds KW - Wet deposition KW - Plankton KW - SW 0850:Lakes KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17723449?accountid=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+air-water+exchange+of+C+sub%2815%29-C+sub%2831%29+n-alkanes+in+a+precipitation-dominated+seepage+lake&rft.au=Doskey%2C+P+V&rft.aulast=Doskey&rft.aufirst=P&rft.date=2000-01-01&rft.volume=34&rft.issue=23&rft.spage=3981&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Particle size; Lakes; Atmospheric chemistry; Air-water interactions; Wet deposition; Atmospheric Chemistry; Air-water Interfaces; Deposition; Organic Compounds; Plankton ER - TY - JOUR T1 - Sulfur dioxide emissions in Asia in the period 1985-1997 AN - 17704934; 4782785 AB - A consistent set of SO sub(2) emission trends has been developed for Asian countries for the time period 1985-1997. The trend is based on extrapolation of a detailed 1990 inventory, which was constructed as part of the World Bank's RAINS-ASIA project, using IEA energy-use data. The trend shows Asian SO sub(2) emissions growing from 33.7 Tg in 1990 to 39.2 Tg in 1997. Estimates interpolated from the RAINS-ASIA computer model suggest a value for 1997 of 46.4 Tg, assuming no major changes in emission abatement policies after 1990. The reduction in the 1997 value, by some 16%, is primarily due to regulatory requirements and other trends toward lower sulfur content of oil products and coal. A slowdown in the growth of emissions in China - due to a reduction in economic growth, the mining of higher-quality coals, enhanced environmental awareness, and a reduction in industrial coal use - has been instrumental in arresting the growth of Asian emissions. Most of the positive developments have occurred in East Asia, and high-emission growth rates persist in Southeast Asia and the Indian subcontinent. The outlook for the future is that Asian SO sub(2) emissions may well peak in the region of 40-45 Tg by the year 2020 or earlier, in contrast to previous predictions of 2020 emissions as high as 80-110 Tg. The trends developed in this paper are good news for the local and regional environment, particularly in East Asia. However, they also signify lower-than-anticipated concentrations of sulfate aerosol over the Asian continent, with the resulting possibility of greater-than-anticipated regional and global warming. JF - Atmospheric Environment AU - Streets, D G AU - Tsai, N Y AU - Akimoto, Hajime AU - Oka, Kaoru AD - Decision and Information Sciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, dstreets@anl.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 4413 EP - 4424 VL - 34 IS - 26 SN - 1352-2310, 1352-2310 KW - Asia KW - Pollution Abstracts KW - Emission inventories KW - Sulfur dioxide KW - Combustion products KW - Mining KW - Energy consumption KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17704934?accountid=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=Sulfur+dioxide+emissions+in+Asia+in+the+period+1985-1997&rft.au=Streets%2C+D+G%3BTsai%2C+N+Y%3BAkimoto%2C+Hajime%3BOka%2C+Kaoru&rft.aulast=Streets&rft.aufirst=D&rft.date=2000-01-01&rft.volume=34&rft.issue=26&rft.spage=4413&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2800%2900187-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sulfur dioxide; Emission inventories; Energy consumption; Combustion products; Mining DO - http://dx.doi.org/10.1016/S1352-2310(00)00187-4 ER - TY - JOUR T1 - The growing contribution of sulfur emissions from ships in Asian waters, 1988-1995 AN - 17697066; 4782786 AB - International shipping is a major source of sulfur emissions in Asia. Because the fuel oil used by ships is high in sulfur, the resulting emissions of SO sub(2) are large and contribute as much as 20% to the atmospheric loading in the vicinity of ports and heavily traveled waterways. Because of the rapid growth of Asian economies in the 1980s and early 1990s, it is estimated that shipping trade grew by an average of 5.4% per year between 1988 and 1995; in particular, crude oil shipments to Asian countries other than Japan grew by an average of 11.4% per year. The emissions of SO sub(2) from shipping are estimated to have grown by 5.9% per year between 1988 and 1995, rising from 545 Gg in 1988 to 817 Gg in 1995. This study uses the ATMOS atmospheric transport and deposition model to study the effects of these emissions, both in absolute terms and relative to land-based emissions, on wet and dry deposition of sulfur. Southeast Asia is most heavily affected by emissions from ships, particularly Sumatra, peninsular Malaysia, and Singapore, which routinely receive in excess of 10% of their deposition from ships. A strong seasonal component is also observed, with large areas of Southeast Asia and coastal Japan receiving sulfur deposition that exceeds 10 mg S m super(-2) season super(-1). Deposition is at least 25% higher in summer and fall than in winter and spring. Peak values of 25-50 mg S m super(-2) season super(-1) are calculated for winter in the Strait of Malacca. This work suggests a need to introduce policies to reduce the sulfur content of marine fuels or otherwise reduce emissions of SO sub(2) from ships in Asian waters. JF - Atmospheric Environment AU - Streets, D G AU - Guttikunda, S K AU - Carmichael, G R AD - Decision and Information Sciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, dstreets@anl.gov Y1 - 2000 PY - 2000 DA - 2000 SP - 4425 EP - 4439 VL - 34 IS - 26 SN - 1352-2310, 1352-2310 KW - Asia KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Pollution Abstracts KW - Sulfur KW - Air Pollution KW - Sulfates KW - Atmospheric Chemistry KW - Ships KW - Historical account KW - Fossil fuels KW - Fuels KW - Port installations KW - Sulphur compounds KW - Acid Rain KW - Air pollution KW - Coastal zone KW - Sulfur dioxide KW - Asia Coasts KW - Emissions KW - Shipping KW - Seasonal variations KW - Marine transportation KW - Q5 08503:Characteristics, behavior and fate KW - P 0000:AIR POLLUTION KW - SW 3020:Sources and fate of pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17697066?accountid=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=Atmospheric+Environment&rft.atitle=The+growing+contribution+of+sulfur+emissions+from+ships+in+Asian+waters%2C+1988-1995&rft.au=Streets%2C+D+G%3BGuttikunda%2C+S+K%3BCarmichael%2C+G+R&rft.aulast=Streets&rft.aufirst=D&rft.date=2000-01-01&rft.volume=34&rft.issue=26&rft.spage=4425&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Last updated - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Air pollution; Coastal zone; Fossil fuels; Shipping; Port installations; Sulphur compounds; Ships; Historical account; Sulfur dioxide; Fuels; Emissions; Seasonal variations; Marine transportation; Acid Rain; Atmospheric Chemistry; Sulfates; Air Pollution; Sulfur; Asia Coasts ER - TY - JOUR T1 - A review of the current status of knowledge on dry deposition AN - 17537074; 4714541 AB - Dry deposition can account for a large portion of the removal of trace chemicals from the troposphere. Resistance schemes used in modeling often perform quite well in daytime conditions over flat terrain. Model results for hilly or mountainous areas, however, are considerably less reliable than those for flat terrain. Even for homogeneous atmospheric and surface conditions and flat terrain, an inadequate model description of surface properties such as vegetative species and soil moisture stress can lead to large differences between modeled and measured fluxes. Third-generation models of mesoscale meteorology and atmospheric chemistry have the potential to achieve several advances, but scaling up of local to regional flux information remains a subject of research. Also, the integrated modeling of gaseous emissions and deposition, which need to be tied together at a low level of model structure, has not yet been accomplished. Many of the processes affecting dry deposition of O sub(3) over individual types of surfaces are fairly well understood. The role of rapid in-air chemical reactions involving NO, NO sub(2), and O sub(3) are difficult to quantify comprehensively, and the effects of water from rain or dew on uptake of gases can be highly variable. JF - Atmospheric Environment AU - Wesely, M L AU - Hicks, B B AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 2000 PY - 2000 DA - 2000 SP - 2261 EP - 2282 VL - 34 IS - 12-14 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts KW - Chemical reactions KW - Atmospheric chemistry KW - Troposphere KW - Dry deposition KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17537074?accountid=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=A+review+of+the+current+status+of+knowledge+on+dry+deposition&rft.au=Wesely%2C+M+L%3BHicks%2C+B+B&rft.aulast=Wesely&rft.aufirst=M&rft.date=2000-01-01&rft.volume=34&rft.issue=12-14&rft.spage=2261&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2899%2900467-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Troposphere; Atmospheric chemistry; Chemical reactions; Dry deposition DO - http://dx.doi.org/10.1016/S1352-2310(99)00467-7 ER - TY - CONF T1 - Present and future emissions of air pollutants in China: SO sub(2), NO sub(x), and CO AN - 17513018; 4697106 AB - As part of the CHINA-MAP program, sponsored by the US National Aeronautics and Space Administration, regional inventories of air pollutants emitted in China are being characterized, in order that the atmospheric chemistry over China can be more fully understood and the resulting ambient concentrations in Chinese cities and the deposition levels to Chinese ecosystems be determined with better confidence. This paper presents estimates of emissions of three of the major air pollutants in China: sulfur dioxide (SO sub(2)), nitrogen oxides (NO sub(x)), and carbon monoxide (CO). Emissions are estimated for each of the 29 regions of China covered by the RAINS-ASIA simulation model, including Hong Kong and Taiwan. All sectors of the Chinese economy are considered, including the combustion of biofuels in rural homes. Data for 1990 and 1995 are presented, as well as two projections for the year 2020 under alternative assumptions about levels of environmental control. Sulfur dioxide emissions are projected to increase from 25.2 mt in 1995 to 30.6 mt in 2020, provided emission controls are implemented on major power plants; if this does not happen, emissions could increase to as much as 60.7 mt by 2020. Emissions of nitrogen oxides are projected to increase from 12.0 mt in 1995 to somewhere in the range of 26.6-29.7 mt by 2020, with little in the way of pollution controls or other emission reduction measures in place. Emissions of carbon monoxide are projected to decline from 115 mt in 1995 to 96.8 mt in 2020, due to more efficient combustion techniques, especially in the transportation sector; if these measures are not realized, carbon monoxide emissions could increase to 130 mt by 2020. Emissions of all three species are concentrated in the populated and industrialized areas of China: the Northeastern Plain, the East Central and Southeastern provinces, and the Sichuan Basin. JF - Atmospheric Environment AU - Streets, D G AU - Waldhoff, ST Y1 - 2000 PY - 2000 DA - 2000 SP - 363 EP - 374 PB - Elsevier Science Ltd., Pergamon, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 34 IS - 3 KW - China KW - Pollution Abstracts KW - Carbon monoxide KW - Air pollution forecasting KW - Emission inventories KW - Sulfur dioxide KW - Nitrogen oxides KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17513018?accountid=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=Present+and+future+emissions+of+air+pollutants+in+China%3A+SO+sub%282%29%2C+NO+sub%28x%29%2C+and+CO&rft.au=Streets%2C+D+G%3BWaldhoff%2C+ST&rft.aulast=Streets&rft.aufirst=D&rft.date=2000-01-01&rft.volume=34&rft.issue=3&rft.spage=363&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2899%2900167-3 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 DO - http://dx.doi.org/10.1016/S1352-2310(99)00167-3 ER - TY - JOUR T1 - Organ distribution of thorium in thorium workers: good agreement with new models of the International Commission on Radiological Protection. AN - 69339141; 10564949 AB - Higher than environmental levels of (232)Th have been found in autopsy samples of lungs and other organs from four former employees of a thorium refinery. Working periods of the subjects ranged from 3 to 24 years, and times from end of work to death ranged from 6 to 31 years. Examination of the distribution of thorium among the organs showed that concentrations in the lung relative to pulmonary lymph nodes, bone or liver were much higher calculated from the dosimetric models in Publication 30 of the International Commission on Radiological Protection (ICRP). Much better agreement was found with more recently proposed models in Publications 68 and 69 of the ICRP. Radiation doses estimated from the amounts of thorium in the autopsy samples were compatible with health studies that found no significant difference in mortality from that of the general population of men in the U.S. JF - Radiation research AU - Stehney, A F AD - Environmental, Safety and Health Division, Argonne National Laboratory, Argonne, Illinois 60439, USA. Y1 - 1999/12// PY - 1999 DA - December 1999 SP - S110 EP - S114 VL - 152 IS - 6 Suppl SN - 0033-7587, 0033-7587 KW - Thorium KW - 60YU5MIG9W KW - Index Medicus KW - Space life sciences KW - Humans KW - Tissue Distribution KW - Administration, Inhalation KW - Male KW - Occupational Exposure KW - Radiation Dosage KW - Radiation Protection KW - Thorium -- pharmacokinetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69339141?accountid=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=Organ+distribution+of+thorium+in+thorium+workers%3A+good+agreement+with+new+models+of+the+International+Commission+on+Radiological+Protection.&rft.au=Stehney%2C+A+F&rft.aulast=Stehney&rft.aufirst=A&rft.date=1999-12-01&rft.volume=152&rft.issue=6+Suppl&rft.spage=S110&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 - 1999-12-22 N1 - Date created - 1999-12-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - CAFE compliance by light trucks: economic impacts of clean diesel engine AN - 17607920; 4745658 AB - With the popularity of light trucks increasing in the United States, their share of the US light vehicle market had doubled between 1980 and 1996, climbing from 20 to 40%. By 1996, annual energy consumption for light trucks had risen to 5.97 x 10 super(15) Btu [5.97 quadrillion Btu, or "quad," or 6.30 x 10 super(18) joule (J)], compared to 7.94 quad (8.38 x 10 super(18) J) for cars. In recent years (since 1995), the fuel economy of US-manufactured light trucks (almost 99% of which use gasoline engines) has been below the Corporate Average Fuel Economy (CAFE) standards. This paper analyzes a strategy to reduce the CAFE shortfalls by adopting the new, highly energy-efficient clean diesel engine. Research on such engines has been funded by the US Department of Energy, Office of Heavy Vehicle Technologies, under its Light Truck Clean Diesel Engine Program. A clean diesel engine market penetration trajectory is developed, representing an industry response to meet the CAFE standards. Whether the engine will be produced inside the country or imported remains uncertain, so two cases are defined. Values of exports/imports of clean diesel engines/trucks under these cases are estimated. The macroeconomic benefits are estimated by using a model of the US economy developed by Standard & Poor's Data Resources, Inc. On the basis of gains in the gross domestic product projected under the alternative cases, domestic production of the clean diesel engine is favored over importing it. JF - Energy Policy AU - Teotia, A AU - Vyas, A AU - Cuenca, R AU - Stodolsky, F AU - Eberhardt, J AD - Argonne National Laboratory, Energy Systems Division, 9700 South Cass Avenue, Bldg. 362, Argonne, IL 60439, USA Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 889 EP - 900 VL - 27 IS - 15 SN - 0301-4215, 0301-4215 KW - light trucks KW - USA KW - Pollution Abstracts KW - Compliance KW - Air pollution control KW - Energy consumption KW - Government regulations KW - Economics KW - Trucks KW - Diesel engines KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17607920?accountid=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=Energy+Policy&rft.atitle=CAFE+compliance+by+light+trucks%3A+economic+impacts+of+clean+diesel+engine&rft.au=Teotia%2C+A%3BVyas%2C+A%3BCuenca%2C+R%3BStodolsky%2C+F%3BEberhardt%2C+J&rft.aulast=Teotia&rft.aufirst=A&rft.date=1999-12-01&rft.volume=27&rft.issue=15&rft.spage=889&rft.isbn=&rft.btitle=&rft.title=Energy+Policy&rft.issn=03014215&rft_id=info:doi/10.1016%2FS0301-4215%2899%2900090-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Energy consumption; Economics; Air pollution control; Trucks; Diesel engines; Government regulations; Compliance DO - http://dx.doi.org/10.1016/S0301-4215(99)00090-7 ER - TY - JOUR T1 - Measurements of peroxyacyl nitrates (PANs) in Mexico City: implications for megacity air quality impacts on regional scales AN - 17440392; 4656935 AB - Peroxyacyl nitrates (PANs) were measured using gas chromatography with electron capture detection (GC/ECD) in north central Mexico City during February-March of 1997. Peroxyacetyl nitrate (PAN) was observed to exceed 30 ppb during five days of the study, with peroxypropionyl nitrate (PPN) and peroxybutryl nitrate (PBN) reaching 6 and 1 ppb maximum, respectively. Levels of total PANs typically exceeded 10 ppb during the period of measurement and showed a very strong diurnal variation with PANs maximum during the early afternoon and falling to less than 0.1 ppb during the evening hours. These levels of PANs are the highest reported values in North America (and the world) for an urban center, since levels of approximately 30 ppb were reported during the late 1970s in the Los Angeles area. Hydrocarbon measurements indicate that the levels of olefins, specifically butenes are significant in Mexico City. A time series taken of source indicator hydrocarbons taken before and during a Mexican National Holiday with reduced automobile traffic clearly show that mobile sources of butenes are as important as liquefied petroleum gas. Observations of 10-40 ppb C methyl-t-butyl ether (MTBE) are consistent with MTBE/gasoline fuel usage as a source of isobutene and formaldehyde. Both these reactive species can lead to increased oxidant and PAN formation. These calculations indicate that megacities can be important sources of both primary and secondary pollutants, and that PANs produced in megacity environments are likely to contribute strongly to regional scale ozone and aerosol productions during long range transport. JF - Atmospheric Environment AU - Gaffney, J S AU - Marley, NA AU - Cunningham, M M AU - Doskey, P V AD - Environmental Research Division, Bldg. 203/ER, 9700 South Cass Avenue, Argonne National Laboratory, Argonne, IL 60439, USA, gaffney@anl.gov Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 5003 EP - 5012 VL - 33 IS - 30 SN - 1352-2310, 1352-2310 KW - Mexico, Mexico City KW - peroxyacyl nitrate KW - Pollution Abstracts KW - Air quality measurements KW - Gas chromatography KW - Urban areas KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17440392?accountid=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=Measurements+of+peroxyacyl+nitrates+%28PANs%29+in+Mexico+City%3A+implications+for+megacity+air+quality+impacts+on+regional+scales&rft.au=Gaffney%2C+J+S%3BMarley%2C+NA%3BCunningham%2C+M+M%3BDoskey%2C+P+V&rft.aulast=Gaffney&rft.aufirst=J&rft.date=1999-12-01&rft.volume=33&rft.issue=30&rft.spage=5003&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue: Air pollution: Placing atmospheric environment in a regional context. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Air quality measurements; Urban areas; Gas chromatography ER - TY - JOUR T1 - Vehicle Emission Unit Risk Factors for Transportation Risk Assessments AN - 17437102; 4656962 AB - When the transportation risk posed by shipments of hazardous chemical and radioactive materials is being assessed, it is necessary to evaluate the risks associated with both vehicle emissions and cargo-related risks. Diesel exhaust and fugitive dust emissions from vehicles transporting hazardous shipments lead to increased air pollution, which increases the risk of latent fatalities in the affected population along the transport route. The estimated risk from these vehicle-related sources can often be as large or larger than the estimated risk associated with the material being transported. In this paper, data from the U.S. Environmental Protection Agency's Motor Vehicle-Related Air Toxics Study are first used to develop latent cancer fatality estimates per kilometer of travel in rural and urban areas for all diesel truck classes. These unit risk factors are based on studies investigating the carcinogenic nature of diesel exhaust. With the same methodology, the current per-kilometer latent fatality risk factor used in transportation risk assessments for heavy diesel trucks in urban areas is revised and the analysis expanded to provide risk factors for rural areas and all diesel truck classes. These latter fatality estimates may include, but are not limited to, cancer fatalities and are based primarily on the most recent epidemiological data available on mortality rates associated with ambient air PM-10 concentrations. JF - Risk Analysis AU - Biwer, B M AU - Butler, J P AD - Environmental Assessment Division, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1999/12// PY - 1999 DA - Dec 1999 SP - 1157 EP - 1172 VL - 19 IS - 6 SN - 0272-4332, 0272-4332 KW - Risk Abstracts; Health & Safety Science Abstracts; Pollution Abstracts KW - Accidents KW - Transportation KW - Radioactive materials KW - Chemical spills KW - Emergency preparedness KW - Materials handling KW - Dust KW - Air pollution KW - Hazardous materials KW - P 9000:ENVIRONMENTAL ACTION KW - R2 23020:Technological risks KW - H 2000:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17437102?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Risk+Analysis&rft.atitle=Vehicle+Emission+Unit+Risk+Factors+for+Transportation+Risk+Assessments&rft.au=Biwer%2C+B+M%3BButler%2C+J+P&rft.aulast=Biwer&rft.aufirst=B&rft.date=1999-12-01&rft.volume=19&rft.issue=6&rft.spage=1157&rft.isbn=&rft.btitle=&rft.title=Risk+Analysis&rft.issn=02724332&rft_id=info:doi/10.1023%2FA%3A1007038812924 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Dust; Air pollution; Materials handling; Transportation; Radioactive materials; Hazardous materials; Emergency preparedness; Accidents; Chemical spills DO - http://dx.doi.org/10.1023/A:1007038812924 ER - TY - JOUR T1 - The one magabar pressure mantle petrology AN - 52051126; 2002-079932 JF - Eos, Transactions, American Geophysical Union AU - Saxena, Surendra K AU - Dubrovinsky, Leonid S AU - Shen, Guoyin AU - Anonymous Y1 - 1999/11/16/ PY - 1999 DA - 1999 Nov 16 SP - 742 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - experimental studies KW - pressure KW - mantle KW - simulation KW - perovskite structure KW - high pressure KW - lower mantle KW - laboratory studies KW - dynamics KW - oxides KW - heterogeneity KW - magnesiowustite KW - ferropericlase KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52051126?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+one+magabar+pressure+mantle+petrology&rft.au=Saxena%2C+Surendra+K%3BDubrovinsky%2C+Leonid+S%3BShen%2C+Guoyin%3BAnonymous&rft.aulast=Saxena&rft.aufirst=Surendra&rft.date=1999-11-16&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=742&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%292324-9250 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 5 N1 - PubXState - DC N1 - Last updated - 2014-03-14 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - dynamics; experimental studies; ferropericlase; heterogeneity; high pressure; laboratory studies; lower mantle; magnesiowustite; mantle; oxides; perovskite structure; pressure; silicates; simulation ER - TY - JOUR T1 - Protocols for implementing DOE authorized release of radioactive scrap metals. AN - 70829590; 10527156 AB - A process to implement the U.S. Department of Energy's (DOE) policy for authorized release of radioactive materials from DOE facilities is provided in the Draft Handbook for Controlling Release for Reuse or Recycle of Property Containing Residual Radioactive Material, published by DOE in 1997 and distributed to DOE field offices for interim use and implementation. The authorized release of such property is intended to permit its beneficial use across the entire DOE complex. A computerized management tool--P2Pro(RSM)--has been developed to aid in carrying out the release process for radioactive metals. It contains protocols for the authorized release process and relevant information to facilitate the evaluation of scrap metals for reuse and recycle. The P2Pro(RSM) protocols provide DOE and its contractors with an effective, user-friendly tool for managing authorized release activities P2Pro(RSM) is designed to be used in the Windows environment. The protocols incorporate a relational database coupled with a graphic-user interface to guide the user through the appropriate steps so authorized release limits can be developed. With the information provided in the database, an as-low-as-reasonably-achievable (ALARA) optimization process can be easily set up and run for up to 10 alternatives for disposition of radioactive scrap metals. The results of the ALARA optimization process can be printed in a series of reports and submitted as part of the application for the authorized release of the radioactive scrap metals. JF - Health physics AU - Chen, S Y AU - Arnish, J AU - Kamboj, S AU - Nieves, L A AD - Argonne National Laboratory, Environmental Assessment Division, IL 60439, USA. sychen@anl.gov Y1 - 1999/11// PY - 1999 DA - November 1999 SP - S86 EP - S95 VL - 77 IS - 5 Suppl SN - 0017-9078, 0017-9078 KW - Metals KW - 0 KW - Radioactive Waste KW - Steel KW - 12597-69-2 KW - Uranium KW - 4OC371KSTK KW - Index Medicus KW - United States KW - Documentation KW - Steel -- chemistry KW - Uranium -- analysis KW - Radioactive Waste -- legislation & jurisprudence KW - Radiation Protection -- legislation & jurisprudence KW - Government Agencies KW - Laboratories -- legislation & jurisprudence KW - Laboratories -- standards KW - Radiation Protection -- standards UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70829590?accountid=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=Protocols+for+implementing+DOE+authorized+release+of+radioactive+scrap+metals.&rft.au=Chen%2C+S+Y%3BArnish%2C+J%3BKamboj%2C+S%3BNieves%2C+L+A&rft.aulast=Chen&rft.aufirst=S&rft.date=1999-11-01&rft.volume=77&rft.issue=5+Suppl&rft.spage=S86&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 - 1999-11-01 N1 - Date created - 1999-11-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Detection of radon decay products in rainwater. AN - 70829332; 10527152 AB - The Argonne National Laboratory-East (ANL-E) Environmental Radiation Monitoring System measures and records ambient radiation levels and provides detection capability for radon decay products in rain clouds. These decay products in rainwater tracked into a facility on the shoes of workers can cause false alarms from hand and shoe monitors. The monitors at ANL-E can easily detect the radon decay products, and the 19.6 and 26.8 min half-lives of the beta-particle emitters are long enough in many cases for sufficient activity to still be present to initiate a contamination alarm when the shoes are checked for radioactivity. The Environmental Radiation Monitoring System provides a warning when precipitation contains elevated levels of radon decay products. It is based on a prototype developed at the Super Collider Laboratory. During its first year of operation there were nine alarms from radon decay products with an alarm trigger point set at 30% greater than background. The alarms occurred at both monitoring stations, which are approximately 1,000 m apart, indicating large diameter radon clouds. The increases in background were associated with low atmospheric pressure. There was no correlation with radon released from the coal-burning steam plant on the site. Alarms also occurred when short-lived accelerator-produced radioactivity in the exhaust stack plume passed over the NaI(Tl) detector in one of the stations. The 450 MeV proton accelerator near the station produced 12C, 13N, and 15O by spallation of air nuclei. The gamma-ray spectrum from the plume from the accelerator exhaust stack was dominated by the 511 keV annihilation gamma rays from decay of these radionuclides. These gamma rays were easily distinguished from the 609 keV, 1,120 keV, and 1,764 keV gamma rays emitted by the radon decay products. JF - Health physics AU - Baker, S I AD - Environment, Safety and Health Division, Argonne National Laboratory, IL 60439, USA. sambaker@anl.gov Y1 - 1999/11// PY - 1999 DA - November 1999 SP - S71 EP - S76 VL - 77 IS - 5 Suppl SN - 0017-9078, 0017-9078 KW - Radon Daughters KW - 0 KW - Water Pollutants, Radioactive KW - Index Medicus KW - United States KW - Illinois KW - Atmospheric Pressure KW - Radon Daughters -- analysis KW - Radiation Monitoring -- methods KW - Water Pollutants, Radioactive -- analysis KW - Rain UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70829332?accountid=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=Detection+of+radon+decay+products+in+rainwater.&rft.au=Baker%2C+S+I&rft.aulast=Baker&rft.aufirst=S&rft.date=1999-11-01&rft.volume=77&rft.issue=5+Suppl&rft.spage=S71&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 - 1999-11-01 N1 - Date created - 1999-11-01 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Limit for olivine in the subducting slab AN - 52184797; 2001-070475 JF - Eos, Transactions, American Geophysical Union AU - Chen, Jiuhua AU - Weidner, Donald J AU - Wang, Liping AU - Uchida, Takeuchi AU - Anonymous Y1 - 1999/11// PY - 1999 DA - November 1999 SP - 1027 PB - American Geophysical Union, Washington, DC VL - 80 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - silicates KW - upper mantle KW - experimental studies KW - subduction zones KW - pressure KW - mantle KW - phase transitions KW - olivine group KW - high pressure KW - nesosilicates KW - ringwoodite KW - physical properties KW - polymorphism KW - wadsleyite KW - olivine KW - orthosilicates KW - kinetics KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52184797?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Limit+for+olivine+in+the+subducting+slab&rft.au=Chen%2C+Jiuhua%3BWeidner%2C+Donald+J%3BWang%2C+Liping%3BUchida%2C+Takeuchi%3BAnonymous&rft.aulast=Chen&rft.aufirst=Jiuhua&rft.date=1999-11-01&rft.volume=80&rft.issue=46%2C+Suppl.&rft.spage=1027&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 1999 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - experimental studies; high pressure; kinetics; mantle; nesosilicates; olivine; olivine group; orthosilicates; P-T conditions; phase transitions; physical properties; polymorphism; pressure; ringwoodite; silicates; subduction zones; upper mantle; wadsleyite ER - TY - JOUR T1 - Monitoring the Urbanization of the Nile Delta, Egypt AN - 17485873; 4681738 AB - Comparisons of processed and coregistered digital mosaics of LANDSAT MSS and TM scenes, acquired over the Nile Delta in 1972, 1984, and 1990, indicate that urban growth is endangering Egypt's agricultural productivity. Urban areas occupied a minimum of 3.6%, 4.7%, and 5.7% of the Nile Delta in 1972, 1984, and 1990, respectively, an increase of 58% in 18 years. Approximately half of this increase occurred between 1984 and 1990. If this trend continues, Egypt could lose 12% of its total agricultural area to urbanization by 2010. Despite the fact that growth is pronounced around the cities, it is the growth around the thousands of small villages that poses the largest threat to the agricultural productivity of the Nile Delta. The cumulative growth rate for the cities and large villages between 1972 and 1990 is 37%, and that for the small villages is 77% for the same time period. JF - Ambio AU - Sultan, M AU - Fiske, M AU - Stein, T AU - Gamal, M AU - Hady, YA AU - El Araby, H AU - Madani, A AU - Mehanee, S AU - Becker, R AD - Argonne National Laboratory, Environmental Research Division, 9700 South Cass Avenue, Argonne, IL 60439, USA, sultan@amoun.er.anl.gov Y1 - 1999/11// PY - 1999 DA - Nov 1999 SP - 628 EP - 631 VL - 28 IS - 7 SN - 0044-7447, 0044-7447 KW - Egypt, Arab Rep., Nile Delta KW - Water Resources Abstracts KW - Agriculture KW - Remote Sensing KW - Urban Areas KW - Deltas KW - Productivity KW - SW 5010:Network design UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17485873?accountid=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=Ambio&rft.atitle=Monitoring+the+Urbanization+of+the+Nile+Delta%2C+Egypt&rft.au=Sultan%2C+M%3BFiske%2C+M%3BStein%2C+T%3BGamal%2C+M%3BHady%2C+YA%3BEl+Araby%2C+H%3BMadani%2C+A%3BMehanee%2C+S%3BBecker%2C+R&rft.aulast=Sultan&rft.aufirst=M&rft.date=1999-11-01&rft.volume=28&rft.issue=7&rft.spage=628&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&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 - Urban Areas; Deltas; Remote Sensing; Agriculture; Productivity ER - TY - JOUR T1 - X-ray standing wave study of arsenite incorporation at the calcite surface AN - 52414989; 2000-003107 JF - Geochimica et Cosmochimica Acta AU - Cheng, Likwan AU - Fenter, Paul AU - Sturchio, Neil C AU - Zhong, Zhong AU - Bedzyk, Michael J A2 - Stipp, Susan L. S. A2 - Brady, Patrick V. A2 - Ragnarsdottir, K. Vala A2 - Charlet, Laurent Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 3153 EP - 3157 PB - Pergamon, Oxford VL - 63 IS - 19-20 SN - 0016-7037, 0016-7037 KW - experimental studies KW - X-ray diffraction data KW - crystal structure KW - crystal growth KW - calcite KW - laboratory studies KW - arsenites KW - X-ray data KW - chemical reactions KW - X-ray fluorescence spectra KW - spectra KW - geochemistry 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/52414989?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=X-ray+standing+wave+study+of+arsenite+incorporation+at+the+calcite+surface&rft.au=Cheng%2C+Likwan%3BFenter%2C+Paul%3BSturchio%2C+Neil+C%3BZhong%2C+Zhong%3BBedzyk%2C+Michael+J&rft.aulast=Cheng&rft.aufirst=Likwan&rft.date=1999-10-01&rft.volume=63&rft.issue=19-20&rft.spage=3153&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2899%2900242-2 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 36 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - arsenites; calcite; carbonates; chemical reactions; crystal growth; crystal structure; experimental studies; geochemistry; laboratory studies; spectra; X-ray data; X-ray diffraction data; X-ray fluorescence spectra DO - http://dx.doi.org/10.1016/S0016-7037(99)00242-2 ER - TY - JOUR T1 - Structure and growth of stearate monolayers on calcite; first results of an in situ X-ray reflectivity study AN - 52414494; 2000-003106 AB - X-ray reflectivity provides detailed information on the structure and adsorption mechanism of simple organic ligands adsorbed on mineral surfaces through in situ measurements. The results are presented using this technique on stearate monolayers adsorbed at the calcite surface from methanolic solutions. From these measurements, details are presented on the in situ structure, bonding, adsorption and growth mechanisms on the monolayers, and the approach can be applied to the interaction of organic molecules with mineral surfaces in aqueous systems. JF - Geochimica et Cosmochimica Acta AU - Fenter, Paul AU - Sturchio, Neil C A2 - Stipp, Susan L. S. A2 - Brady, Patrick V. A2 - Ragnarsdottir, K. Vala A2 - Charlet, Laurent Y1 - 1999/10// PY - 1999 DA - October 1999 SP - 3145 EP - 3152 PB - Pergamon, Oxford VL - 63 IS - 19-20 SN - 0016-7037, 0016-7037 KW - experimental studies KW - stearates KW - in situ KW - mineral-water interface KW - aqueous solutions KW - X-ray spectra KW - calcite KW - laboratory studies KW - organic compounds KW - ligands KW - chemical reactions KW - spectra KW - reflectance KW - geochemistry KW - carbonates KW - instruments KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52414494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Structure+and+growth+of+stearate+monolayers+on+calcite%3B+first+results+of+an+in+situ+X-ray+reflectivity+study&rft.au=Fenter%2C+Paul%3BSturchio%2C+Neil+C&rft.aulast=Fenter&rft.aufirst=Paul&rft.date=1999-10-01&rft.volume=63&rft.issue=19-20&rft.spage=3145&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2899%2900241-0 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 2000-01-01 N1 - Number of references - 31 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aqueous solutions; calcite; carbonates; chemical reactions; experimental studies; geochemistry; in situ; instruments; laboratory studies; ligands; mineral-water interface; organic compounds; reflectance; spectra; stearates; X-ray spectra DO - http://dx.doi.org/10.1016/S0016-7037(99)00241-0 ER - TY - JOUR T1 - Greenhouse-gas emissions from biofuel combustion in Asia AN - 17465070; 4667149 AB - An inventory of biofuel combustion is used to develop estimates of the emissions of carbon-containing greenhouse gases (CO sub(2), CO, CH sub(4), and NMHC) in Asian countries. It is estimated that biofuels contributed 573 Tg-C (teragrams of carbon; 1 Tg = 10 super(12) g) in 1990, about 28% of the total carbon emissions from energy use in Asia. China (259 Tg-C) and India (187 Tg-C) were the largest emitting countries. The majority of the emissions, 504 Tg-C, were in the form of CO sub(2); however, emissions of non-CO sub(2) greenhouse gases were significant: 57 Tg-C as CO, 6.4 Tg-C as CH sub(4), and 5.9 Tg-C as NMHC. Because of the high rates of incomplete combustion in typical biofuel stoves and cookers and the high global warming potentials (GWP) of the products of incomplete combustion (PICs), biofuels comprise an even larger share of energy-related emissions when measured in terms of total GWP (in CO sub(2) equivalents): 38% over a 20-year time horizon and 31% over a 100-year time horizon. Even when the biofuel is assumed to be harvested on a completely sustainable basis (all CO sub(2) emissions reabsorbed in the following growing season), PIC emissions from biofuel combustion account for 4.5% of the total carbon emissions and 23% of CO sub(2) equivalents on a short-term (20-year) GWP basis. JF - Energy (Oxford) AU - Streets, D G AU - Waldhoff, ST AD - Decision and Information Sciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, dstreets@anl.gov Y1 - 1999/10// PY - 1999 DA - Oct 1999 SP - 841 EP - 855 VL - 24 IS - 10 SN - 0360-5442, 0360-5442 KW - Asia KW - Pollution Abstracts KW - Emission inventories KW - Combustion products KW - Fuels KW - Global warming KW - Greenhouse gases KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17465070?accountid=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=Energy+%28Oxford%29&rft.atitle=Greenhouse-gas+emissions+from+biofuel+combustion+in+Asia&rft.au=Streets%2C+D+G%3BWaldhoff%2C+ST&rft.aulast=Streets&rft.aufirst=D&rft.date=1999-10-01&rft.volume=24&rft.issue=10&rft.spage=841&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&rft_id=info:doi/10.1016%2FS0360-5442%2899%2900030-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Fuels; Combustion products; Emission inventories; Greenhouse gases; Global warming DO - http://dx.doi.org/10.1016/S0360-5442(99)00030-4 ER - TY - JOUR T1 - Failure and leakage through circumferential cracks in steam generator tubing during accident conditions AN - 17439828; 4645666 AB - This paper derives analytical expressions for the burst pressure and crack opening area for PWR steam generator tubes with a single throughwall circumferential crack when extensive plastic deformation occurs at the crack section. The rest of the tube is assumed to respond either elastically or as an elastic-plastic material obeying power-law hardening. The tubes are assumed to be subjected to internal pressure loading only. Limited elastic-plastic finite-element analyses were conducted to validate the results. JF - International Journal of Pressure Vessels and Piping AU - Majumdar, S AD - Argonne National Laboratory, Energy Technology Division, Argonne, IL 60439, USA Y1 - 1999/10// PY - 1999 DA - Oct 1999 VL - 76 IS - 12 SN - 0308-0161, 0308-0161 KW - fractures KW - pressure vessels KW - Health & Safety Science Abstracts KW - Accidents KW - Leakage KW - Nuclear reactors KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17439828?accountid=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+Pressure+Vessels+and+Piping&rft.atitle=Failure+and+leakage+through+circumferential+cracks+in+steam+generator+tubing+during+accident+conditions&rft.au=Majumdar%2C+S&rft.aulast=Majumdar&rft.aufirst=S&rft.date=1999-10-01&rft.volume=76&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Pressure+Vessels+and+Piping&rft.issn=03080161&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 reactors; Leakage; Accidents ER - TY - JOUR T1 - Wyartite; crystallographic evidence for the first pentavalent-uranium mineral AN - 52434995; 1999-066396 AB - Determination of the structure of wyartite provides the first evidence for a pentavalent-U mineral. The structure of wyartite, CaU (super 5+) (UO (sub 2) ) (sub 2) (CO (sub 3) )O (sub 4) (OH)(H (sub 2) O) (sub 7) , Z = 4, orthorhombic, a = 11.2706(8), b = 7.1055(5), c = 20.807(1) Aa, V = 1666.3(3) Aa (super 3) , space group P2 (sub 1) 2 (sub 1) 2 (sub 1) , was solved by direct methods and refined to an agreement index (R) of 4.9% for 2309 unique reflections collected using MoKalpha X-radiation and a CCD-based detector. The structure contains three unique U positions; two contain U (super 6+) and involve uranyl ions with typical pentagonal-bipyramidal coordination. Seven anions coordinate the other U position, but there is no uranyl ion present. The polyhedral geometry, the bond-valence sum incident at this U site, and electroneutrality requirements, all indicate that this site contains U (super 5+) The Uphi (sub 7) (phi : O, OH, H (sub 2) O) polyhedra share edges and corners to form a unique sheet in which a CO (sub 3) group shares an edge with the U (super 5+) phi (sub 7) polyhedron. The structure contains one Ca site coordinated by seven anions. The Ca atom and its associated H (sub 2) O groups occupy interlayer sites, along with two H (sub 2) O groups that are held in the structure by H bonds only. The Caphi (sub 7) polyhedron is linked to one adjacent sheet by sharing an edge with the CO (sub 3) group and an O atom with a U (super 6+) phi (sub 7) polyhedron. Structural units are linked together through hydrogen bonds only. JF - American Mineralogist AU - Burns, Peter C AU - Finch, Robert J Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 1456 EP - 1460 PB - Mineralogical Society of America, Washington, DC VL - 84 IS - 9 SN - 0003-004X, 0003-004X KW - wyartite KW - paragenesis KW - refinement KW - polyhedra KW - atomic packing KW - unit cell KW - crystal structure KW - valency KW - lattice parameters KW - uranium minerals KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52434995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Wyartite%3B+crystallographic+evidence+for+the+first+pentavalent-uranium+mineral&rft.au=Burns%2C+Peter+C%3BFinch%2C+Robert+J&rft.aulast=Burns&rft.aufirst=Peter&rft.date=1999-09-01&rft.volume=84&rft.issue=9&rft.spage=1456&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 - 1999-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - atomic packing; crystal structure; lattice parameters; paragenesis; polyhedra; refinement; unit cell; uranium minerals; valency; wyartite ER - TY - JOUR T1 - Don't drink the water AN - 52418439; 2000-002269 AB - If water exists in permanently shadowed terrain on the Moon as suggested by a number of investigators (Watson et al., 1961; Arnold, 1979; Hodges, 1980; Nozette et al., 1996; Duke and Whittaker, 1997) and strongly supported by the Lunar Prospector neutron flux measurements (Feldman et al., 1998), the results of studies on another volatile, namely Hg, are quite relevant. Whereas water has not been positively found, a large number of studies have established the presence of Hg in lunar samples. Its presence and volatile behavior are important when considering water as probably the most important in situ lunar resource. Here we show that the amount of Hg in lunar cold traps may be comparable to the amounts of water. JF - Meteoritics & Planetary Science AU - Reed, George W, Jr Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 809 EP - 811 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 5 SN - 1086-9379, 1086-9379 KW - water KW - experimental studies KW - Moon KW - metals KW - hydrochemistry KW - geochemistry KW - temperature KW - mercury KW - 02B:Hydrochemistry KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52418439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Don%27t+drink+the+water&rft.au=Reed%2C+George+W%2C+Jr&rft.aulast=Reed&rft.aufirst=George&rft.date=1999-09-01&rft.volume=34&rft.issue=5&rft.spage=809&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 34 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - experimental studies; geochemistry; hydrochemistry; mercury; metals; Moon; temperature; water ER - TY - JOUR T1 - Chemical studies of H chondrites; 10, Contents of thermally labile trace elements are unaffected by late heating AN - 52417367; 2000-002257 AB - We have used radiochemical neutron activation analysis (RNAA) to determine 15 trace elements, including 10 moderately to highly volatile ones--Rb, Ag, Se, Cs, Te, Zn, Cd, Bi, Tl, In (in increasing volatility order), in 6 H chondrite falls with low- (super 3) He contents. These (plus prior RNAA data) provide a compositional database of 92 H4-6 chondrite falls. Three suites of samples can be identified from their noble gas contents: 44 with "normal" contents and, therefore, "normal" orbits and cosmic-ray exposure histories; 8 that lost radiogenic gases, presumably by shock late in their histories; and 17 that lost cosmogenic gases by heating during close solar approach. We used the standard multivariate statistical techniques of linear discriminant analysis and logistic regression to compare contents of the 10 moderately and highly volatile trace elements, listed above, in these three suites. We found no significant differences. This contrasts sharply with similar comparisons involving random falls and H4-6 chondrites that landed on Earth at specific time intervals. Apparently, contents of volatile trace elements in H4-6 chondrites were established early in their histories, and they are so retentively sited that loss during later heating episodes did not occur. JF - Meteoritics & Planetary Science AU - Wang, Ming-Sheng AU - Wolf, Stephen F AU - Lipschutz, Michael E Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 713 EP - 716 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 5 SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - neutron activation analysis data KW - stony meteorites KW - isotopes KW - statistical analysis KW - tritium KW - H chondrites KW - meteorites KW - volatiles KW - radioactive isotopes KW - multivariate analysis KW - hydrogen KW - trace elements KW - chondrites KW - geochemistry KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52417367?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chemical+studies+of+H+chondrites%3B+10%2C+Contents+of+thermally+labile+trace+elements+are+unaffected+by+late+heating&rft.au=Wang%2C+Ming-Sheng%3BWolf%2C+Stephen+F%3BLipschutz%2C+Michael+E&rft.aulast=Wang&rft.aufirst=Ming-Sheng&rft.date=1999-09-01&rft.volume=34&rft.issue=5&rft.spage=713&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 22 N1 - PubXState - AR N1 - Document feature - 3 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chondrites; geochemistry; H chondrites; hydrogen; isotopes; meteorites; multivariate analysis; neutron activation analysis data; ordinary chondrites; radioactive isotopes; statistical analysis; stony meteorites; trace elements; tritium; volatiles ER - TY - JOUR T1 - Norton Air Force Base, San Bernardino, California; screening technologies for soil and groundwater remediation AN - 52388078; 2000-018934 JF - Soil & Groundwater AU - Regens, James L AU - Hodges, Donald G AU - Wilkey, Patrick L AU - Zimmerman, Eric AU - Armstrong, Anthony Q AU - Kelley, Linda AU - Hall, Timothy A AU - Hughes, Eugene A Y1 - 1999/09// PY - 1999 DA - September 1999 SP - 24 EP - 27 PB - Soils, Inc., Stanley, KS VL - 1999, August-September SN - 1086-1971, 1086-1971 KW - United States KW - chlorinated hydrocarbons KW - techniques KW - environmental analysis KW - remediation KW - ground water KW - California KW - perched aquifers KW - decontamination KW - Norton Air Force Base KW - halogenated hydrocarbons KW - pump-and-treat KW - San Bernardino County California KW - soils KW - leaking underground storage tanks KW - damage KW - soil treatment KW - petroleum products KW - aquifers KW - recharge KW - organic compounds KW - hydrocarbons KW - trichloroethylene KW - military facilities KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52388078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+%26+Groundwater&rft.atitle=Norton+Air+Force+Base%2C+San+Bernardino%2C+California%3B+screening+technologies+for+soil+and+groundwater+remediation&rft.au=Regens%2C+James+L%3BHodges%2C+Donald+G%3BWilkey%2C+Patrick+L%3BZimmerman%2C+Eric%3BArmstrong%2C+Anthony+Q%3BKelley%2C+Linda%3BHall%2C+Timothy+A%3BHughes%2C+Eugene+A&rft.aulast=Regens&rft.aufirst=James&rft.date=1999-09-01&rft.volume=1999%2C+August-September&rft.issue=&rft.spage=24&rft.isbn=&rft.btitle=&rft.title=Soil+%26+Groundwater&rft.issn=10861971&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - KS N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; California; chlorinated hydrocarbons; damage; decontamination; environmental analysis; ground water; halogenated hydrocarbons; hydrocarbons; leaking underground storage tanks; military facilities; Norton Air Force Base; organic compounds; perched aquifers; petroleum products; pump-and-treat; recharge; remediation; San Bernardino County California; soil treatment; soils; techniques; trichloroethylene; United States ER - TY - JOUR T1 - Effects of nonmethane hydrocarbons on lower stratospheric and upper tropospheric chemical climatology in a two-dimensional zonal average model AN - 17656645; 4703369 AB - The effect on the modeled chemical climatology of the upper troposphere and lower stratosphere of including a limited set of nonmethane hydrocarbons in a two-dimensional (2-D) zonal average model is presented. Recent measurements of nitrogenated and oxygenated hydrocarbons in the upper troposphere and lower stratosphere have revealed the possibility of significant perturbation of this region. A zonally averaged 2-D chemical transport model enhanced to represent tropospheric processes was used to explore the extent of this perturbation on global and regional spatial scales and on seasonal and annual average timescales. Acetone was shown to cause a significant increase in the HO sub(x) budgets of the upper troposphere in the midlatitude Northern Hemisphere during the winter and early spring months, with acetone photolysis providing the most significant source of HO sub(x) radicals. The tropical upper troposphere has a uniform increase in HO sub(x) of up to 20% throughout the year because of acetone photolysis. Including the hydrocarbons caused a net increase in ozone of 5 ppbv in the lower and middle troposphere and 5-10 ppbv in the upper troposphere for global and annual averages. The effect of including the hydrocarbons on the calculated model ozone response for the case of doubled surface mixing ratios of atmospheric CH sub(4) is also discussed. It is shown that including hydrocarbons in the model has a significant effect on the modeled ozone response to the methane increase. JF - Journal of Geophysical Research. D. Atmospheres AU - Kotamarthi, V R AU - Wuebbles, D J AU - Reck, R A AD - Environmental Research Division, Argonne National Laboratory, Argonne, Illinois, USA Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 21537 EP - 21547 VL - 104 IS - D17 SN - 0148-0227, 0148-0227 KW - acetone KW - Pollution Abstracts KW - Methane KW - Photolysis KW - Hydrocarbons KW - Troposphere KW - Stratosphere KW - Atmospheric chemistry KW - Ozone KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17656645?accountid=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=Effects+of+nonmethane+hydrocarbons+on+lower+stratospheric+and+upper+tropospheric+chemical+climatology+in+a+two-dimensional+zonal+average+model&rft.au=Kotamarthi%2C+V+R%3BWuebbles%2C+D+J%3BReck%2C+R+A&rft.aulast=Kotamarthi&rft.aufirst=V&rft.date=1999-09-01&rft.volume=104&rft.issue=D17&rft.spage=21537&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - Troposphere; Stratosphere; Hydrocarbons; Atmospheric chemistry; Photolysis; Ozone; Methane ER - TY - JOUR T1 - Vertical mixing and chemistry of isoprene in the atmospheric boundary layer: Aircraft-based measurements and numerical modeling AN - 17654565; 4703375 AB - Vertical profiles of isoprene, methanol, and ozone (O sub(3)) concentrations were measured between the middle and upper atmospheric boundary layer (ABL) from a research aircraft and were numerically simulated for the ABL and a deciduous forest canopy with a one-dimensional model coupling turbulence diffusion and atmospheric chemistry. Isoprene emissions from the deciduous forest canopy were estimated by coupling an existing biogenic emission algorithm with estimates of canopy leaf density inferred from satellite remote sensing observations. Numerical simulations predicted low isoprene concentrations in the middle and upper ABL; however, the agreement between the simulations and the measured values was poor for two of the three profiles, indicating that a three-dimensional transport model might be necessary in future simulations. Chemical oxidation of isoprene by O sub(3) and hydroxyl radical (OH), particularly in the middle and upper ABL, tends to reduce the isoprene concentrations and influences the vertical fluxes in that layer; however, chemical reactions have little effect on fluxes of isoprene near the emission source, where turbulent mixing is much faster than chemical reactions and where the emission process controls the vertical flux. The isoprene flux decreases rapidly with increasing height, with little isoprene escaping from the ABL. Vertical profiles of methanol concentrations were simulated with the biogenic emission algorithm used for isoprene; these vertical profiles were similar to the measured values for the well-mixed ABL but were much lower than the measured concentrations in the lower layers of the growing ABL because of weaker calculated mixing in the upper ABL during the morning. The results of this investigation indicate that chemical oxidation of isoprene is rapid enough to allow O sub(3) and other oxidants to accumulate in the ABL on a regional scale if sufficient levels of nitrogen oxides are present; however, methanol is much more stable, and biogenic emissions of this compound have the potential to form O sub(3) and other oxidants in areas distant from the emission source. JF - Journal of Geophysical Research. D. Atmospheres AU - Doskey, P V AU - Gao, W AD - Environmental Research Division, Argonne National Laboratory, Argonne, Illinois, USA Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 21263 EP - 21274 VL - 104 IS - D17 SN - 0148-0227, 0148-0227 KW - isoprene KW - methanol KW - Pollution Abstracts KW - Simulation KW - Aircraft KW - Boundary layers KW - Oxidation KW - Atmospheric chemistry KW - Emission measurements KW - Diffusion KW - Ozone KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17654565?accountid=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=Vertical+mixing+and+chemistry+of+isoprene+in+the+atmospheric+boundary+layer%3A+Aircraft-based+measurements+and+numerical+modeling&rft.au=Doskey%2C+P+V%3BGao%2C+W&rft.aulast=Doskey&rft.aufirst=P&rft.date=1999-09-01&rft.volume=104&rft.issue=D17&rft.spage=21263&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - Atmospheric chemistry; Boundary layers; Aircraft; Ozone; Emission measurements; Simulation; Oxidation; Diffusion ER - TY - JOUR T1 - An assessment of sulfur deposition pathways in Asia AN - 17448277; 4657617 AB - The acid deposition model is developed and applied to assess the sulfur deposition pathways in Asia. Simulations for four seasons are conducted: February, April, August, and October. The predicted results of summer and winter are compared to measured concentration of SO sub(2), sulfate, and sulfate wet deposition in Japan. Further comparison of sulfate wet deposition to observations in China is made to assess the general performance of the model. The study shows that wet deposition is more important than dry deposition. It is the predominant factor in each of these four months. It is also found that rainout process, compared to washout process, make a larger contribution to sulfate wet deposition in summer and spring than in the dry months, such as October. The total sulfur wet to dry deposition ratio is 1.6 in February, 1.2 in April, 2.9 in August, and 1.9 in October. JF - Atmospheric Environment AU - Xu, Y AU - Carmichael, G R AD - 203ER, Argonne National Laboratory, Argonne, IL 60437, USA, yiwen-xu@anl.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 3473 EP - 3486 VL - 33 IS - 21 SN - 1352-2310, 1352-2310 KW - Asia KW - Pollution Abstracts KW - Sulfur KW - Acid rain KW - Wet deposition KW - Air pollution KW - Dry deposition KW - Seasonal variations KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17448277?accountid=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=An+assessment+of+sulfur+deposition+pathways+in+Asia&rft.au=Xu%2C+Y%3BCarmichael%2C+G+R&rft.aulast=Xu&rft.aufirst=Y&rft.date=1999-09-01&rft.volume=33&rft.issue=21&rft.spage=3473&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue section: Sources and sinks of sulfur compounds in the atmosphere. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sulfur; Acid rain; Seasonal variations; Wet deposition; Dry deposition; Air pollution ER - TY - JOUR T1 - The Impact of Environmental Constraints on Productivity Improvement in Integrated Paper Plants AN - 17364499; 4586687 AB - This paper utilizes a flexible measure of productivity that includes environmental performance. We characterize the loss of potential productive output due to environmental constraints, decomposing losses into those resulting from the commitment of capital to pollution abatement and those losses that arise from other sources. We also assess the potential for improvements that increase productivity and reduce pollution. Results from the paper industry show a "win-win" potential for inputs and pollution to be simultaneously reduced by 2% to 8%, without reducing productivity. We also find that environmental constraints reduce production by 9%, a quarter of which results from pollution abatement capital constraints. JF - Journal of Environmental Economics and Management AU - Boyd, G A AU - Mcclelland, J D AD - Decision and Information Sciences Division, Argonne National Laboratory, Argonne, 60439, Illinois, john.mcclelland@do.treas.gov Y1 - 1999/09// PY - 1999 DA - Sep 1999 SP - 121 EP - 142 PB - Academic Press VL - 38 IS - 2 SN - 0095-0696, 0095-0696 KW - Pollution Abstracts KW - Environmental economics KW - Pollution prevention KW - Paper industry KW - Pollution control KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17364499?accountid=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+Economics+and+Management&rft.atitle=The+Impact+of+Environmental+Constraints+on+Productivity+Improvement+in+Integrated+Paper+Plants&rft.au=Boyd%2C+G+A%3BMcclelland%2C+J+D&rft.aulast=Boyd&rft.aufirst=G&rft.date=1999-09-01&rft.volume=38&rft.issue=2&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Economics+and+Management&rft.issn=00950696&rft_id=info:doi/10.1006%2Fjeem.1999.1082 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pollution control; Pollution prevention; Environmental economics; Paper industry DO - http://dx.doi.org/10.1006/jeem.1999.1082 ER - TY - JOUR T1 - Gibbsite growth kinetics on gibbsite, kaolinite, and muscovite substrates; atomic force microscopy evidence for epitaxy and an assessment of reactive surface area AN - 52437997; 1999-063531 AB - Growth rates of gibbsite at 80 degrees C obtained previously are combined with new data for the growth of gibbsite on powdered kaolinite and on single crystal muscovite, to formulate a single growth rate for gibbsite that takes into account reactive surface area of the mineral substrates. The results for pH 3 solutions show that all growth rates obey the same linear function of saturation state provided that the reactive surface area is evaluated for each mineral substrate. This suggests that the dominant nucleation and growth mechanisms are two-dimensional. Kaolinite and muscovite appear to provide epitaxial templates for the growth of gibbsite, although epitaxy may occur only on the edges of kaolinite where there is pH-dependent surface charge, and on both the basal and edges of muscovite where there are permanent and pH-dependent charge, respectively. JF - Geochimica et Cosmochimica Acta AU - Nagy, Kathryn L AU - Cygan, Randall T AU - Hanchar, John M AU - Sturchio, Neil C Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 2337 EP - 2351 PB - Pergamon, Oxford VL - 63 IS - 16 SN - 0016-7037, 0016-7037 KW - silicates KW - experimental studies KW - muscovite KW - clay mineralogy KW - crystal growth KW - kaolinite KW - epitaxy KW - clay minerals KW - substrates KW - laboratory studies KW - atomic force microscopy data KW - chemical reactions KW - mica group KW - oxides KW - sheet silicates KW - gibbsite KW - kinetics KW - geochemistry 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/52437997?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Gibbsite+growth+kinetics+on+gibbsite%2C+kaolinite%2C+and+muscovite+substrates%3B+atomic+force+microscopy+evidence+for+epitaxy+and+an+assessment+of+reactive+surface+area&rft.au=Nagy%2C+Kathryn+L%3BCygan%2C+Randall+T%3BHanchar%2C+John+M%3BSturchio%2C+Neil+C&rft.aulast=Nagy&rft.aufirst=Kathryn&rft.date=1999-08-01&rft.volume=63&rft.issue=16&rft.spage=2337&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2899%2900118-0 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 71 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; chemical reactions; clay mineralogy; clay minerals; crystal growth; epitaxy; experimental studies; geochemistry; gibbsite; kaolinite; kinetics; laboratory studies; mica group; muscovite; oxides; sheet silicates; silicates; substrates DO - http://dx.doi.org/10.1016/S0016-7037(99)00118-0 ER - TY - JOUR T1 - Geological observations and parameterizations AN - 52404591; 2000-009834 AB - This document provides a record of the discussions conducted by the Geological Observations and Parameterizations (GOP) group, which sought to define and address important questions concerning the parameterization of geological observations for use in stratigraphic simulations. The discussions of this group, which was intermittently composed of a combination of model-building, model-using, and nonmodeling geologists, centered on the type and quality of common geological observations, the scales of these observations, and the accurate representation of observations in geological models. The underlying concerns were whether all relevant processes are accounted for in existing models, and whether modelers are using the available models correctly, inputting realistic values and ranges of values at the proper scales. Our fundamental questions include the following: How closely is the variability of geological observations reflected in stratigraphic models? If such variability is well represented within a model, how well does a simulation predict away from points of control? If it does not do this well, is it the input parameters that are not reflecting the natural variability of the system, or does the fault lie with the model itself? If the model itself is the limiting factor, how well do we really need to constrain input parameters? How well do we understand the nonlinear characteristics of natural systems, and how are these characteristics introduced into models? JF - Special Publication - Society for Sedimentary Geology AU - Perlmutter, Martin A AU - De Boer, Poppe L AU - Syvitski, James P A2 - Harbaugh, John W. A2 - Watney, W. Lynn A2 - Rankey, Eugene C. A2 - Slingerland, Rudy A2 - Goldstein, Robert H. A2 - Franseen, Evan K. Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 25 EP - 28 PB - Society for Sedimentary Geology (SEPM), Tulsa, OK VL - 62 SN - 1060-071X, 1060-071X KW - stratigraphy KW - models KW - properties KW - simulation KW - parameterization KW - variations KW - observations KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52404591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Publication+-+Society+for+Sedimentary+Geology&rft.atitle=Geological+observations+and+parameterizations&rft.au=Perlmutter%2C+Martin+A%3BDe+Boer%2C+Poppe+L%3BSyvitski%2C+James+P&rft.aulast=Perlmutter&rft.aufirst=Martin&rft.date=1999-08-01&rft.volume=62&rft.issue=&rft.spage=25&rft.isbn=156576061&rft.btitle=&rft.title=Special+Publication+-+Society+for+Sedimentary+Geology&rft.issn=1060071X&rft_id=info:doi/ L2 - http://sp.sepmonline.org/ LA - English DB - GeoRef N1 - Conference title - Numerical experiments in stratigraphy; recent advances in stratigraphic and sedimentologic computer simulations N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 3 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - models; observations; parameterization; properties; simulation; stratigraphy; variations ER - TY - JOUR T1 - Subsurface interactions of actinide species and microorganisms; implications for the bioremediation of actinide-organic mixtures AN - 52376535; 2000-026582 JF - Journal of Radioanalytical and Nuclear Chemistry AU - Banaszak, J E AU - Rittmann, B E AU - Reed, D T Y1 - 1999/08// PY - 1999 DA - August 1999 SP - 385 EP - 435 PB - Elsevier, Lausanne-Budapest VL - 241 IS - 2 SN - 0236-5731, 0236-5731 KW - soils KW - biodegradation KW - degradation KW - pollutants KW - physicochemical properties KW - pollution KW - mathematical models KW - bioremediation KW - remediation KW - organic compounds KW - solvents KW - toxicity KW - metals KW - hydrocarbons KW - mobility KW - actinides KW - pH KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52376535?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Subsurface+interactions+of+actinide+species+and+microorganisms%3B+implications+for+the+bioremediation+of+actinide-organic+mixtures&rft.au=Banaszak%2C+J+E%3BRittmann%2C+B+E%3BReed%2C+D+T&rft.aulast=Banaszak&rft.aufirst=J&rft.date=1999-08-01&rft.volume=241&rft.issue=2&rft.spage=385&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=02365731&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 291 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JRNCDM N1 - SubjectsTermNotLitGenreText - actinides; biodegradation; bioremediation; degradation; hydrocarbons; mathematical models; metals; microorganisms; mobility; organic compounds; pH; physicochemical properties; pollutants; pollution; remediation; soils; solvents; toxicity ER - TY - JOUR T1 - Microanalysis of colloids and suspended particles from nuclear waste glass alteration AN - 52474671; 1999-038823 AB - Radioactive and non-radioactive borosilicate glasses were reacted with water under static conditions at glass surface area to leachant volume (S/V) ratios of 340, 2000 and 20 000/m for times varying between several days and several years at 90 degrees C. A radioactive glass was also reacted under intermittent flow conditions. Colloidal and suspended glass alteration particles in the leachates were examined using analytical TEM. The major colloidal phase identified in all tests was partially crystalline dioctahedral smectite clay. Clay colloids were stable at S/V ratios of 340 and 2000/m but at 20 000/m they flocculated and sedimented. Calcite, dolomite and transition metal oxide particles were more common in the intermittent flow tests but were also found in the static tests. Layered Mn minerals, birnessite and asbolane were found exclusively in the intermittent tests; weeksite and a U-Ti phase was found exclusively in the static tests. Partially crystalline REE-bearing calcium phosphate colloids, structurally similar to rhabdophane, were found in both types of tests; these particles exhibited a negative Ce anomaly. Geochemical modelling indicated that Pu should be present predominantly as a carbonate rather than a phosphate phase but this may be due to the paucity of suitable thermodynamic data available to the model. JF - Applied Geochemistry AU - Buck, Edgar C AU - Bates, John K Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 635 EP - 653 PB - Pergamon, Oxford-New York-Beijing VL - 14 IS - 5 SN - 0883-2927, 0883-2927 KW - United States KW - silicates KW - alteration KW - colloidal materials KW - South Carolina KW - smectite KW - suspended materials KW - TEM data KW - temperature KW - radioactive waste KW - measurement KW - clay minerals KW - models KW - metals KW - leachate KW - testing KW - sheet silicates KW - waste disposal KW - Savannah River Site KW - glass materials KW - geochemistry KW - actinides KW - particles KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52474671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Microanalysis+of+colloids+and+suspended+particles+from+nuclear+waste+glass+alteration&rft.au=Buck%2C+Edgar+C%3BBates%2C+John+K&rft.aulast=Buck&rft.aufirst=Edgar&rft.date=1999-07-01&rft.volume=14&rft.issue=5&rft.spage=635&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2FS0883-2927%2898%2900088-2 L2 - http://www.sciencedirect.com/science/journal/08832927 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 - 1999-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; alteration; clay minerals; colloidal materials; geochemistry; glass materials; leachate; measurement; metals; models; particles; radioactive waste; Savannah River Site; sheet silicates; silicates; smectite; South Carolina; suspended materials; TEM data; temperature; testing; United States; waste disposal DO - http://dx.doi.org/10.1016/S0883-2927(98)00088-2 ER - TY - JOUR T1 - Mineral associations and average oxidation states of sorbed Pu on tuff AN - 52277889; 2001-005998 JF - Environmental Science & Technology, ES & T AU - Duff, M C AU - Hunter, D B AU - Triay, I R AU - Bertsch, Paul M AU - Reed, D T AU - Sutton, S R AU - Shea-McCarthy, G AU - Kitten, J AU - Eng, P AU - Chipera, S J AU - Vaniman, D T Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 2163 EP - 2169 PB - American Chemical Society, Washington, DC VL - 33 IS - 13 SN - 0013-936X, 0013-936X KW - silicates KW - sorption KW - volcanic rocks KW - plutonium KW - igneous rocks KW - atmospheric precipitation KW - radioactive waste KW - ground water KW - rancieite KW - transport KW - manganese oxides KW - zeolite group KW - oxides KW - framework silicates KW - tuff KW - mineral assemblages KW - thermodynamic properties KW - pollutants KW - smectite KW - pollution KW - migration of elements KW - equilibrium KW - clay minerals KW - aquifers KW - pyroclastics KW - metals KW - sheet silicates KW - waste disposal KW - actinides KW - SEM data KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52277889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Mineral+associations+and+average+oxidation+states+of+sorbed+Pu+on+tuff&rft.au=Duff%2C+M+C%3BHunter%2C+D+B%3BTriay%2C+I+R%3BBertsch%2C+Paul+M%3BReed%2C+D+T%3BSutton%2C+S+R%3BShea-McCarthy%2C+G%3BKitten%2C+J%3BEng%2C+P%3BChipera%2C+S+J%3BVaniman%2C+D+T&rft.aulast=Duff&rft.aufirst=M&rft.date=1999-07-01&rft.volume=33&rft.issue=13&rft.spage=2163&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 - 2001-01-01 N1 - Number of references - 46 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; aquifers; atmospheric precipitation; chemical fractionation; clay minerals; equilibrium; framework silicates; ground water; igneous rocks; manganese oxides; metals; migration of elements; mineral assemblages; oxides; plutonium; pollutants; pollution; pyroclastics; radioactive waste; rancieite; SEM data; sheet silicates; silicates; smectite; sorption; thermodynamic properties; transport; tuff; volcanic rocks; waste disposal; zeolite group ER - TY - JOUR T1 - Molybdenum- and zirconium-isotopic compositions of supernova grains AN - 52254679; 2001-023614 JF - Meteoritics & Planetary Science AU - Davis, A M AU - Pellin, M J AU - Lewis, R S AU - Amari, S AU - Clayton, R N AU - Reimold, Wolf Uwe Y1 - 1999/07// PY - 1999 DA - July 1999 SP - 30 EP - 31 PB - Meteoritical Society, Fayetteville, AR VL - 34 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - stony meteorites KW - oxygen KW - isotopes KW - zirconium KW - Mo-100 KW - silicon KW - Murchison Meteorite KW - meteorites KW - noble gases KW - molybdenum KW - carbon KW - helium KW - chondrites KW - experimental studies KW - patterns KW - supernovas KW - Mo-95 KW - grain size KW - Zr-92 KW - Mo-97 KW - Zr-91 KW - Zr-90 KW - carbonaceous chondrites KW - grains KW - stars KW - metals KW - CM chondrites KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52254679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Molybdenum-+and+zirconium-isotopic+compositions+of+supernova+grains&rft.au=Davis%2C+A+M%3BPellin%2C+M+J%3BLewis%2C+R+S%3BAmari%2C+S%3BClayton%2C+R+N%3BReimold%2C+Wolf+Uwe&rft.aulast=Davis&rft.aufirst=A&rft.date=1999-07-01&rft.volume=34&rft.issue=4%2C+Suppl.&rft.spage=30&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 62nd annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon; carbonaceous chondrites; chondrites; CM chondrites; experimental studies; grain size; grains; helium; isotopes; metals; meteorites; Mo-100; Mo-95; Mo-97; molybdenum; Murchison Meteorite; noble gases; oxygen; patterns; silicon; stars; stony meteorites; supernovas; zirconium; Zr-90; Zr-91; Zr-92 ER - TY - JOUR T1 - Differential Signatures of Bacterial and Mammalian IMP Dehydrogenase Enzymes AN - 17319825; 4577105 AB - IMP dehydrogenase (IMPDH) is an essential enzyme of de novo guanine nucleotide synthesis. IMPDH inhibitors have clinical utility as antiviral, anticancer or immunosuppressive agents. The essential nature of this enzyme suggests its therapeutic applications may be extended to the development of antimicrobial agents. Bacterial IMPDH enzymes show biochemical and kinetic characteristics that are different than the mammalian IMPDH enzymes, suggesting IMPDH may be an attractive target for the development of antimicrobial agents. We suggest that the biochemical and kinetic differences between bacterial and mammalian enzymes are a consequence of the variance of specific, identifiable amino acid residues. Identification of these residues or combination or residues that impart this mammalian or bacterial enzyme signature is a prerequisite for the rational identification of agents that specifically target the bacterial enzyme. We used sequence alignments of IMPDH proteins to identify sequence signatures associated with bacterial or eukaryotic IMPDH enzymes. These selections were further refined to discern those likely to have a role in catalysis using information derived from the bacterial and mammalian IMPDH crystal structures and site-specific mutagenesis. Candidate bacterial sequence signatures identified by this process include regions involved in subunit interactions, the active site flap and the NAD binding region. Analysis of sequence alignments in these regions indicates a pattern of catalytic residues conserved in all enzymes and a secondary pattern of amino acid conservation associated with the major phylogenetic groups. Elucidation of the basis for this mammalian/bacterial IMPDH signature will provide insight into the catalytic mechanism of this enzyme and the foundation for the development of highly specific inhibitors. JF - Current Medicinal Chemistry AU - Zhang, R AU - Evans, G AU - Rotella, F AU - Westbrook, E AU - Huberman, E AU - Joachimiak, A AU - Collart AD - Biosciences Division, Argonne National Laboratory, Fcollart@anl.gov Y1 - 1999/07// PY - 1999 DA - Jul 1999 SP - 537 EP - 543 VL - 6 IS - 7 SN - 0929-8673, 0929-8673 KW - IMP dehydrogenase inhibitors KW - Biotechnology and Bioengineering Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - IMP dehydrogenase KW - Immunosuppressive agents KW - Antitumor agents KW - Guanine KW - Reviews KW - W3 33310:Enzymes and cofactors KW - W3 33000:General topics and reviews KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17319825?accountid=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+Medicinal+Chemistry&rft.atitle=Differential+Signatures+of+Bacterial+and+Mammalian+IMP+Dehydrogenase+Enzymes&rft.au=Zhang%2C+R%3BEvans%2C+G%3BRotella%2C+F%3BWestbrook%2C+E%3BHuberman%2C+E%3BJoachimiak%2C+A%3BCollart&rft.aulast=Zhang&rft.aufirst=R&rft.date=1999-07-01&rft.volume=6&rft.issue=7&rft.spage=537&rft.isbn=&rft.btitle=&rft.title=Current+Medicinal+Chemistry&rft.issn=09298673&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Inhibition of Inosine Monophosphate Dehydrogenase (IMPDH). N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Guanine; IMP dehydrogenase; Reviews; Antitumor agents; Immunosuppressive agents ER - TY - JOUR T1 - Geochemical and cosmochemical materials AN - 52407149; 2000-009275 JF - Analytical Chemistry (Washington, DC) AU - Lischutz, Michael E AU - Culp, F Bartow AU - Wolf, Stephen F AU - Hanchar, John M Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 1 EP - 20 PB - American Chemical Society, Washington, DC VL - 71 IS - 12 SN - 0003-2700, 0003-2700 KW - methods KW - inductively coupled plasma methods KW - isotopes KW - atomic absorption KW - solution KW - bibliography KW - electron probe KW - radioactive isotopes KW - materials KW - X-ray analysis KW - geochemistry KW - GeoRef KW - chromatography KW - standardization KW - mass spectroscopy KW - cosmochemistry KW - samples KW - new methods KW - emission spectroscopy KW - sample preparation KW - X-ray spectroscopy KW - particle-induced X-ray emission KW - electron microbeam techniques KW - spectroscopy KW - Caplus KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52407149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+Chemistry+%28Washington%2C+DC%29&rft.atitle=Geochemical+and+cosmochemical+materials&rft.au=Lischutz%2C+Michael+E%3BCulp%2C+F+Bartow%3BWolf%2C+Stephen+F%3BHanchar%2C+John+M&rft.aulast=Lischutz&rft.aufirst=Michael&rft.date=1999-06-01&rft.volume=71&rft.issue=12&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Analytical+Chemistry+%28Washington%2C+DC%29&rft.issn=00032700&rft_id=info:doi/ L2 - http://www3.interscience.wiley.com/cgi-bin/jhome/38876 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 302 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atomic absorption; bibliography; Caplus; chromatography; cosmochemistry; electron microbeam techniques; electron probe; emission spectroscopy; geochemistry; GeoRef; inductively coupled plasma methods; isotopes; mass spectroscopy; materials; methods; new methods; particle-induced X-ray emission; radioactive isotopes; sample preparation; samples; solution; spectroscopy; standardization; X-ray analysis; X-ray spectroscopy ER - TY - JOUR T1 - Hydrogen-atom positions in P4/nnc vesuvianite AN - 52386322; 2000-018386 AB - The crystal structure of a large crystal of gem-quality Fe-bearing vesuvianite (a 15.533, c 11.785 Aa, V 2843 Aa (super 3) ; omega 1.710, epsilon 1.713, 2V 0 degrees ; D 3.43 g/cm (super 3) ; FeO 3.68 wt.%) from Kenya has been refined to R 3.9%. Difference-Fourier maps show a double minimum between adjacent O(10) atoms along c, indicating a statistical distribution of H(2) between two sites. The partial occupancy of the H(1) site is consistent with the substitution of F for O at the O(11) site. Although hydrogrossular and vesuvianite have similar structures and occur in the same environments, the neutron-diffraction results rule out the possibility of a hydrogarnet-type substitution [(O (sub 4) H (sub 4) ) (super 4-) = (SiO (sub 4) ) (super 4-) ] in this specimen. Its IR spectrum (6500-7500 cm (super -1) ) most closely resembles that of intermediate-fluorine, boron-poor vesuvianite. JF - The Canadian Mineralogist AU - Lager, G A AU - Xie, Qianyen AU - Ross, F K AU - Rossman, G R AU - Armbruster, T AU - Rotella, F J AU - Schultz, A J Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 763 EP - 768 PB - Mineralogical Association of Canada, Ottawa, ON VL - 37, Part 3 SN - 0008-4476, 0008-4476 KW - sorosilicates KW - silicates KW - near-infrared spectra KW - refinement KW - space groups KW - East Africa KW - unit cell KW - crystal structure KW - bonding KW - crystals KW - gems KW - Kenya KW - atomic packing KW - single-crystal method KW - hydrogen KW - orthosilicates KW - neutron diffraction data KW - Africa KW - valency KW - spectra KW - lattice parameters KW - vesuvianite KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52386322?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Canadian+Mineralogist&rft.atitle=Hydrogen-atom+positions+in+P4%2Fnnc+vesuvianite&rft.au=Lager%2C+G+A%3BXie%2C+Qianyen%3BRoss%2C+F+K%3BRossman%2C+G+R%3BArmbruster%2C+T%3BRotella%2C+F+J%3BSchultz%2C+A+J&rft.aulast=Lager&rft.aufirst=G&rft.date=1999-06-01&rft.volume=37%2C+Part+3&rft.issue=&rft.spage=763&rft.isbn=&rft.btitle=&rft.title=The+Canadian+Mineralogist&rft.issn=00084476&rft_id=info:doi/ L2 - http://www.mineralogicalassociation.ca/template/EJournal/ 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 - 2000-01-01 N1 - Number of references - 17 N1 - PubXState - ON N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CAMIA6 N1 - SubjectsTermNotLitGenreText - Africa; atomic packing; bonding; crystal structure; crystals; East Africa; gems; hydrogen; Kenya; lattice parameters; near-infrared spectra; neutron diffraction data; orthosilicates; refinement; silicates; single-crystal method; sorosilicates; space groups; spectra; unit cell; valency; vesuvianite ER - TY - JOUR T1 - An integrated framework for evaluating subsurface contamination remediation technologies AN - 50577640; 1999-067429 JF - Environmental Geosciences AU - Regens, James L AU - Hodges, Donald G AU - Wilkey, Patrick L AU - Zimmerman, Eric AU - Armstrong, Anthony Q AU - Kelley, Linda AU - Hall, Timothy A AU - Hughes, Eugene A Y1 - 1999/06// PY - 1999 DA - June 1999 SP - 82 EP - 89 PB - Blackwell Science, Cambridge, MA VL - 6 IS - 2 SN - 1075-9565, 1075-9565 KW - United States KW - soils KW - chlorinated hydrocarbons KW - technology KW - Illinois KW - pollutants KW - soil treatment KW - pollution KW - hydrochemistry KW - environmental analysis KW - remediation KW - ground water KW - organic compounds KW - decontamination KW - Chicago Illinois KW - water treatment KW - halogenated hydrocarbons KW - risk assessment KW - trichloroethylene KW - geochemistry KW - Cook County Illinois KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50577640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Geosciences&rft.atitle=An+integrated+framework+for+evaluating+subsurface+contamination+remediation+technologies&rft.au=Regens%2C+James+L%3BHodges%2C+Donald+G%3BWilkey%2C+Patrick+L%3BZimmerman%2C+Eric%3BArmstrong%2C+Anthony+Q%3BKelley%2C+Linda%3BHall%2C+Timothy+A%3BHughes%2C+Eugene+A&rft.aulast=Regens&rft.aufirst=James&rft.date=1999-06-01&rft.volume=6&rft.issue=2&rft.spage=82&rft.isbn=&rft.btitle=&rft.title=Environmental+Geosciences&rft.issn=10759565&rft_id=info:doi/ L2 - http://www.ingentaconnect.com/content/bsc/ege LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 6 N1 - PubXState - MA N1 - Document feature - illus. incl. sect., sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Chicago Illinois; chlorinated hydrocarbons; Cook County Illinois; decontamination; environmental analysis; geochemistry; ground water; halogenated hydrocarbons; hydrochemistry; Illinois; organic compounds; pollutants; pollution; remediation; risk assessment; soil treatment; soils; technology; trichloroethylene; United States; water treatment ER - TY - BOOK T1 - Eleven years of water quality monitoring in the Great Lakes: An evaluation of limnological sampling network design based on 1983-1993 results AN - 19917702; 5317912 AB - The U. S. Environmental Protection Agency's Great Lakes National Program Office has conducted an annual program of water quality monitoring in the middle Great Lakes (Lakes Erie, Huron, and Michigan) since 1983. Sampling in Lake Ontario and Lake Superior was added in 1985 and 1992 respectively. The annual monitoring program, which was designed to meet some of the surveillance requirements of the 1978 U. S.-Canada Water Quality Agreement, evolved from an earlier water quality surveillance plan that called for intensive surveys of each of the Great Lakes every five years. While the five-year sampling plan was intensive both in terms of spatial coverage and temporal resolution, some results indicated that natural variations in water quality might exceed attributable to control efforts and that these variations could not be quantified by sampling every five years. The work to be presented here was intended to determine whether the sampling network satisfied its original design requirement of being representative of the well-mixed open waters of the Great Lakes and whether any long-term trends in Great Lakes water quality could be detected. JF - IAGLR '99. International Association for Great Lakes Research: Great Lakes, Great Science, Great Cities. Program and Abstracts. AU - Lesht, B M AU - Warren, G Y1 - 1999/05// PY - 1999 DA - May 1999 EP - 69 PB - International Association for Great Lakes Research, 2205 Commonwealth Boulevard Ann Arbor MI 48105 USA KW - North America, Great Lakes KW - Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - water quality KW - Pollution monitoring KW - Conferences KW - Water Sampling KW - North America, Superior L. KW - Water Quality KW - Surveillance and enforcement KW - Limnology KW - Surveys KW - Freshwater KW - Water quality KW - North America, Erie L. KW - Environmental protection KW - Design KW - EPA KW - Lakes KW - Data Acquisition KW - North America, Ontario L. KW - Sampling KW - Monitoring KW - Urban areas KW - SW 5040:Data acquisition KW - P 2000:FRESHWATER POLLUTION KW - Q2 09105:Research programmes and expeditions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19917702?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=Lesht%2C+B+M%3BWarren%2C+G&rft.aulast=Lesht&rft.aufirst=B&rft.date=1999-05-01&rft.volume=&rft.issue=&rft.spage=A&rft.isbn=&rft.btitle=Eleven+years+of+water+quality+monitoring+in+the+Great+Lakes%3A+An+evaluation+of+limnological+sampling+network+design+based+on+1983-1993+results&rft.title=Eleven+years+of+water+quality+monitoring+in+the+Great+Lakes%3A+An+evaluation+of+limnological+sampling+network+design+based+on+1983-1993+results&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2007-01-01 N1 - Last updated - 2016-05-27 ER - TY - JOUR T1 - Chelant extraction of heavy metals from contaminated soils. AN - 69843001; 10379036 AB - The current state of the art regarding the use of chelating agents to extract heavy metal contaminants has been addressed. Results are presented for treatability studies conducted as worst-case and representative soils from Aberdeen Proving Ground's J-Field for extraction of copper (Cu), lead (Pb), and zinc (Zn). The particle size distribution characteristics of the soils determined from hydrometer tests are approximately 60% sand, 30% silt, and 10% clay. Sequential extractions were performed on the 'as-received' soils (worst case and representative) to determine the speciation of the metal forms. The technique speciates the heavy metal distribution into an easily extractable (exchangeable) form, carbonates, reducible oxides, organically-bound, and residual forms. The results indicated that most of the metals are in forms that are amenable to soil washing (i.e. exchangeable+carbonate+reducible oxides). The metals Cu, Pb, Zn, and Cr have greater than 70% of their distribution in forms amenable to soil washing techniques, while Cd, Mn, and Fe are somewhat less amenable to soil washing using chelant extraction. However, the concentrations of Cd and Mn are low in the contaminated soil. From the batch chelant extraction studies, ethylenediaminetetraacetic acid (EDTA), citric acid, and nitrilotriacetic acid (NTA) were all effective in removing copper, lead, and zinc from the J-Field soils. Due to NTA being a Class II carcinogen, it is not recommended for use in remediating contaminated soils. EDTA and citric acid appear to offer the greatest potential as chelating agents to use in soil washing the Aberdeen Proving Ground soils. The other chelating agents studied (gluconate, oxalate, Citranox, ammonium acetate, and phosphoric acid, along with pH-adjusted water) were generally ineffective in mobilizing the heavy metals from the soils. The chelant solution removes the heavy metals (Cd, Cu, Pb, Zn, Fe, Cr, As, and Hg) simultaneously. Using a multiple-stage batch extraction, the soil was successfully treated passing both the Toxicity Characteristics Leaching Procedure (TCLP) and EPA Total Extractable Metal Limit. The final residual Pb concentration was about 300 mg/kg, with a corresponding TCLP of 1.5 mg/l. Removal of the exchangeable and carbonate fractions for Cu and Zn was achieved during the first extraction stage, whereas it required two extraction stages for the same fractions for Pb. Removal of Pb, Cu, and Zn present as exchangeable, carbonates, and reducible oxides occurred between the fourth- and fifth-stage extractions. The overall removal of copper, lead, and zinc from the multiple-stage washing were 98.9%, 98.9%, and 97.2%, respectively. The concentration and operating conditions for the soil washing extractions were not necessarily optimized. If the conditions had been optimized and using a more representative Pb concentration (approximately 12000 mg/kg), it is likely that the TCLP and residual heavy metal soil concentrations could be achieved within two to three extractions. The results indicate that the J-Field contaminated soils can be successfully treated using a soil washing technique. JF - Journal of hazardous materials AU - Peters, R W AD - Energy Systems Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA. robert_peters@qmgate.anl.gov Y1 - 1999/04/23/ PY - 1999 DA - 1999 Apr 23 SP - 151 EP - 210 VL - 66 IS - 1-2 SN - 0304-3894, 0304-3894 KW - Chelating Agents KW - 0 KW - Hazardous Waste KW - Metals, Heavy KW - Soil Pollutants KW - Index Medicus KW - Reproducibility of Results KW - Particle Size KW - Humans KW - Decontamination -- methods KW - Decontamination -- economics KW - Chelating Agents -- chemistry KW - Water Purification -- economics KW - Metals, Heavy -- chemistry KW - Water Purification -- methods KW - Soil Pollutants -- analysis KW - Metals, Heavy -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69843001?accountid=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+hazardous+materials&rft.atitle=Chelant+extraction+of+heavy+metals+from+contaminated+soils.&rft.au=Peters%2C+R+W&rft.aulast=Peters&rft.aufirst=R&rft.date=1999-04-23&rft.volume=66&rft.issue=1-2&rft.spage=151&rft.isbn=&rft.btitle=&rft.title=Journal+of+hazardous+materials&rft.issn=03043894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-07-08 N1 - Date created - 1999-07-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Selective removal of plutonium 238 from a canal sediment using a carbonate-chelant soil washing technology (ACT*DE*CON). AN - 69840055; 10379033 AB - The Mound laboratory site in Miamisburg, OH, a former plutonium processing facility, contains approximately 40000 yd(3) (30,580 m3) of plutonium- and thorium-contaminated soils and sediments at levels that require remediation. Existing applicable remediation technologies are unsatisfactory, because they are expensive and do not provide volume reduction. ACT*DE*CON is a chemical soil leaching technology for the treatment of soils that utilizes contaminant dissolution via dilute selective solutions to remove radionuclides. In bench-scale tests, process parameters were developed for the optimal treatment of the Miami Erie Canal soil at the Mound site, combining the maximum plutonium removal with an acceptable amount of soil dissolution and minimizing the costs of reagents. Parameters evaluated included soil to extractant mass ratio, temperature, rinse solution composition, kinetics, and the application of several dewatering aids. Plutonium removal rates of >95% were achieved, and the residual plutonium in the treated soil proved to be very immobile-confirming that the process had removed the most accessible species of the radionuclide. Currently being tested at Mound is an engineering scale-up that includes an attrition scrubber, a counter-current extractor, and a reverse osmosis system. Economic evaluations based on bench-scale results put the treatment cost at US$278/yd(3) (US$364/m3), compared to US$350/yd(3) (US$458/m3) for the 'box-and-bury' baseline alternative treatment system. JF - Journal of hazardous materials AU - Negri, M C AU - Swift, N A AU - Carfagno, D AU - Neff, R A AU - North, J AD - Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA. negri@anl.gov Y1 - 1999/04/23/ PY - 1999 DA - 1999 Apr 23 SP - 99 EP - 118 VL - 66 IS - 1-2 SN - 0304-3894, 0304-3894 KW - Carbonates KW - 0 KW - Chelating Agents KW - Hazardous Waste KW - Soil Pollutants, Radioactive KW - Water Pollutants, Radioactive KW - Plutonium KW - 53023GN24M KW - Index Medicus KW - Reproducibility of Results KW - Humans KW - Ohio KW - Decontamination -- methods KW - Decontamination -- economics KW - Carbonates -- chemistry KW - Chelating Agents -- chemistry KW - Water Pollutants, Radioactive -- analysis KW - Plutonium -- chemistry KW - Water Purification -- economics KW - Water Purification -- methods KW - Soil Pollutants, Radioactive -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69840055?accountid=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+hazardous+materials&rft.atitle=Selective+removal+of+plutonium+238+from+a+canal+sediment+using+a+carbonate-chelant+soil+washing+technology+%28ACT*DE*CON%29.&rft.au=Negri%2C+M+C%3BSwift%2C+N+A%3BCarfagno%2C+D%3BNeff%2C+R+A%3BNorth%2C+J&rft.aulast=Negri&rft.aufirst=M&rft.date=1999-04-23&rft.volume=66&rft.issue=1-2&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Journal+of+hazardous+materials&rft.issn=03043894&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-07-08 N1 - Date created - 1999-07-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Oxidative degradation and kinetics of chlorinated ethylenes by potassium permanganate AN - 16126131; 4559635 AB - The oxidative treatment of chlorinated ethylenes in ground water using permanganate was investigated in a series of batch kinetic tests. Five chlorinated ethylenes including tetrachloroethylene (PCE), trichloroethylene (TCE), and three isomers of dichloroethylenes (DCEs) were examined. The degradation process was rapid with pseudo-first-order rate constants ranging from 4.5 x 10 super(-5) to 0.03 s super(-1) at MnO super(-) sub(4) = 1 mM. The rate increased with a decreasing number of chlorine substituents on the ethylene. The higher reactivity of trans-DCE (k sub(obs) = 30 x 10 super(-3) s super(-1) at MnO super(-) sub(4) = 1 mM) as compared to cis-DCE (k sub(obs) = 0.9 x 10 super(-3) s super(-1) at MnO super(-) sub(4) = 1 mM) is thought to be caused by a significant steric effect due to the formation of a large cyclic activated complex. TCE oxidation as a second-order reaction was confirmed and the rate constant, k = 0.67 plus or minus 0.03 M super(-1) s super(-1), is independent of pH over the range of 4-8. The activity of both C1 super(-1) and hydrogen ions was monitored over time and suggests essentially complete dechlorination, making the degradation products less harmful than the parent compounds. Competition for MnO super(-) sub(4) from other organic compounds in ground water or highly contaminated ground water was also evaluated in experiments. A simple and quick approach was demonstrated to estimate permanganate consumption by other organic compounds for field applications and to predict the TCE degradation rate in a system involving multiple contaminants. The modeling results suggest that the effect of autocatalysis by MnO sub(2) on TCE degradation is significant when the system contains high concentration levels of MnO super(-) sub(4) and TOC. JF - Journal of Contaminant Hydrology AU - Yan, YE AU - Schwartz, F W AD - Department of Geological Sciences, The Ohio State University, Columbus, OH 43210, USA, eyan@anl.gov Y1 - 1999/04/15/ PY - 1999 DA - 1999 Apr 15 SP - 343 EP - 365 VL - 37 IS - 3-4 SN - 0169-7722, 0169-7722 KW - chlorinated ethylenes KW - dichloroethylene KW - permanganate KW - potassium permanganate KW - tetrachloroethylene KW - trichloroethylene KW - Pollution Abstracts; Water Resources Abstracts KW - Water Pollution Treatment KW - Degradation KW - Fate of Pollutants KW - Chlorine KW - Groundwater Pollution KW - Water treatment KW - Kinetics KW - Oxidation KW - Groundwater pollution KW - Organic compounds KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16126131?accountid=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+Contaminant+Hydrology&rft.atitle=Oxidative+degradation+and+kinetics+of+chlorinated+ethylenes+by+potassium+permanganate&rft.au=Yan%2C+YE%3BSchwartz%2C+F+W&rft.aulast=Yan&rft.aufirst=YE&rft.date=1999-04-15&rft.volume=37&rft.issue=3-4&rft.spage=343&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2FS0169-7722%2898%2900166-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Water treatment; Kinetics; Oxidation; Chlorine; Groundwater pollution; Organic compounds; Degradation; Water Pollution Treatment; Fate of Pollutants; Groundwater Pollution DO - http://dx.doi.org/10.1016/S0169-7722(98)00166-1 ER - TY - JOUR T1 - Potential for Advanced Technology to Improve Air Quality and Human Health in Shanghai AN - 899134548; 15625098 JF - Environmental Management AU - Streets, David G AU - Hedayat, Leyla AU - Carmichael, Gregory R AU - Arndt, Richard L AU - CARTER, LDOUGLAS AD - Decision and Information Sciences Division Argonne National Laboratory 9700 South Cass Avenue Argonne, Illinois 60439, USA , US Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 279 EP - 295 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 23 IS - 3 SN - 0364-152X, 0364-152X KW - Pollution Abstracts; Environment Abstracts; Ecology Abstracts KW - Air quality KW - China, People's Rep., Shanghai KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899134548?accountid=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+Management&rft.atitle=Potential+for+Advanced+Technology+to+Improve+Air+Quality+and+Human+Health+in+Shanghai&rft.au=Streets%2C+David+G%3BHedayat%2C+Leyla%3BCarmichael%2C+Gregory+R%3BArndt%2C+Richard+L%3BCARTER%2C+LDOUGLAS&rft.aulast=Streets&rft.aufirst=David&rft.date=1999-04-01&rft.volume=23&rft.issue=3&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Environmental+Management&rft.issn=0364152X&rft_id=info:doi/10.1007%2Fs002679900186 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Air quality; China, People's Rep., Shanghai DO - http://dx.doi.org/10.1007/s002679900186 ER - TY - JOUR T1 - Evaluation of the disposal of naturally occurring radioactive material in a RCRA class D landfill AN - 52057319; 2002-074065 JF - Abstracts with Programs - Geological Society of America AU - Herbert, Jennifer AU - Williams, Gus AU - Tomasko, Dave AU - Blunt, Deborah AU - Arnish, John AU - Anonymous Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 21 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - HELP KW - alkaline earth metals KW - sulfates KW - radium KW - isotopes KW - one-dimensional models KW - landfills KW - pollution KW - lead KW - environmental analysis KW - drinking water KW - SWIFT II KW - ground water KW - models KW - Ra-226 KW - radioactive isotopes KW - metals KW - leachate KW - Michigan KW - waste disposal KW - Pb-210 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52057319?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Evaluation+of+the+disposal+of+naturally+occurring+radioactive+material+in+a+RCRA+class+D+landfill&rft.au=Herbert%2C+Jennifer%3BWilliams%2C+Gus%3BTomasko%2C+Dave%3BBlunt%2C+Deborah%3BArnish%2C+John%3BAnonymous&rft.aulast=Herbert&rft.aufirst=Jennifer&rft.date=1999-04-01&rft.volume=31&rft.issue=5&rft.spage=21&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, North-Central Section, 33rd 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 - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; drinking water; environmental analysis; ground water; HELP; isotopes; landfills; leachate; lead; metals; Michigan; models; one-dimensional models; Pb-210; pollution; Ra-226; radioactive isotopes; radium; sulfates; SWIFT II; United States; waste disposal ER - TY - JOUR T1 - Modeling mixed-flow karst aquifer systems AN - 52057134; 2002-075982 JF - Abstracts with Programs - Geological Society of America AU - Quinn, John J AU - Tomasko, Dave AU - Miller, Steven F AU - Glennon, Mary Ann AU - Anonymous Y1 - 1999/04// PY - 1999 DA - April 1999 SP - 66 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Saint Louis County Missouri KW - numerical models KW - Bavaria Germany KW - Missouri KW - karst hydrology KW - elevation KW - dye tracers KW - Hohenfels Germany KW - Europe KW - Saint Louis Missouri KW - ground water KW - aquifers KW - models KW - Central Europe KW - sinkholes KW - Germany KW - solution features KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52057134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Modeling+mixed-flow+karst+aquifer+systems&rft.au=Quinn%2C+John+J%3BTomasko%2C+Dave%3BMiller%2C+Steven+F%3BGlennon%2C+Mary+Ann%3BAnonymous&rft.aulast=Quinn&rft.aufirst=John&rft.date=1999-04-01&rft.volume=31&rft.issue=5&rft.spage=66&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, North-Central Section, 33rd 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 - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; Bavaria Germany; Central Europe; dye tracers; elevation; Europe; Germany; ground water; Hohenfels Germany; karst hydrology; Missouri; models; numerical models; Saint Louis County Missouri; Saint Louis Missouri; sinkholes; solution features; United States ER - TY - JOUR T1 - Mycorrhizal status of the genus Carex (Cyperaceae) AN - 17495176; 4690177 AB - The Cyperaceae have generally been considered nonmycorrhizal, although recent evidence suggests that mycotrophy may be considerably more widespread among sedges than was previously realized. This study surveyed 23 species of Carex occurring in upland and wetland habitats in northeastern Illinois. Mycorrhizal infection by arbuscular fungi was found in the roots of 16 species of Carex and appears to occur in response to many factors, both environmental and phylogenetic. While some species appear to be obligately nonmycorrhizal, edaphic influences may be responsible for infection in others. In five of the seven Carex species that were nonmycorrhizal, a novel root character, the presence of bulbous-based root hairs, was identified. The taxonomically patchy distribution of the distinctive root hair trait suggests that these structures may have evolved several times within the genus. Evidence of multiple independent origins of the root hair trait lends support to the hypothesis that root hairs represent an adaptation to nonmycotrophy. Although taxonomic position does seem to be of importance in determining the mycorrhizal dependence of sedges, the pattern may be a patchwork of both mycorrhizal clades and clades that have adapted to the nonmycorrhizal state. JF - American Journal of Botany AU - Miller, R M AU - Smith, C I AU - Jastrow, J D AU - Bever, J D AD - Environmental Research Division, Argonne National Laboratory, Argonne, Illinois 60439, USA Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 547 EP - 553 VL - 86 IS - 4 SN - 0002-9122, 0002-9122 KW - USA, Illinois KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Ecology Abstracts KW - Mycorrhizas KW - Fungi KW - Carex KW - Roots KW - Wetlands KW - K 03096:Mycorrhiza KW - D 04636:Grasses UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17495176?accountid=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=American+Journal+of+Botany&rft.atitle=Mycorrhizal+status+of+the+genus+Carex+%28Cyperaceae%29&rft.au=Miller%2C+R+M%3BSmith%2C+C+I%3BJastrow%2C+J+D%3BBever%2C+J+D&rft.aulast=Miller&rft.aufirst=R&rft.date=1999-04-01&rft.volume=86&rft.issue=4&rft.spage=547&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Botany&rft.issn=00029122&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 - Carex; Mycorrhizas; Wetlands; Fungi; Roots ER - TY - JOUR T1 - Characteristics and Crystal Structure of Bacterial Inosine-5'-monophosphate Dehydrogenase AN - 17295733; 4563763 AB - IMP dehydrogenase (IMPDH) is an essential enzyme that catalyzes the first step unique to GTP synthesis. To provide a basis for the evaluation of IMPDH inhibitors as antimicrobial agents, we have expressed and characterized IMPDH from the pathogenic bacterium Streptococcus pyogenes. Our results show that the biochemical and kinetic characteristics of S. pyogenes IMPDH are similar to other bacterial IMPDH enzymes. However, the lack of sensitivity to mycophenolic acid and the K sub(m) for NAD (1180/ mu M) exemplify some of the differences between the bacterial and mammalian IMPDH enzymes, making it an attractive target for antimicrobial agents. To evaluate the basis for these differences, we determined the crystal structure of the bacterial enzyme at 1.9 Ae with substrate bound in the catalytic site. The structure was determined using selenomethionine-substituted protein and multiwavelength anomalous (MAD) analysis of data obtained with synchrotron radiation from the undulator beamline (19ID) of the Structural Biology Center at Argonne's Advanced Photon Source. S. pyogenes IMPDH is a tetramer with its four subunits related by a crystallographic 4-fold axis. The protein is composed of two domains: a TIM barrel domain that embodies the catalytic framework and a cystathione beta -synthase (CBS) dimer domain of so far unknown function. Using information provided by sequence alignments and the crystal structure, we prepared several site-specific mutants to examine the role of various active site regions in catalysis. These variants implicate the active site flap as an essential catalytic element and indicate there are significant differences in the catalytic environment of bacterial and mammalian IMPDH enzymes. Comparison of the structure of bacterial IMPDH with the known partial structures from eukaryotic organisms will provide an explanation of their distinct properties and contribute to the design of specific bacterial IMPDH inhibitors. JF - Biochemistry (Washington) AU - Zhang, Rong-guang AU - Evans, G AU - Rotella, F J AU - Westbrook, E M AU - Beno, D AU - Huberman, E AU - Joachimiak, A AU - Collart AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439-4833, USA, Fcollart@anl.gov Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 4691 EP - 4700 VL - 38 IS - 15 SN - 0006-2960, 0006-2960 KW - inosine-5'-monophosphate dehydrogenase KW - structure-activity relationships KW - Microbiology Abstracts B: Bacteriology KW - Crystal structure KW - Active sites KW - Streptococcus pyogenes KW - J 02728:Enzymes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17295733?accountid=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=Characteristics+and+Crystal+Structure+of+Bacterial+Inosine-5%27-monophosphate+Dehydrogenase&rft.au=Zhang%2C+Rong-guang%3BEvans%2C+G%3BRotella%2C+F+J%3BWestbrook%2C+E+M%3BBeno%2C+D%3BHuberman%2C+E%3BJoachimiak%2C+A%3BCollart&rft.aulast=Zhang&rft.aufirst=Rong-guang&rft.date=1999-04-01&rft.volume=38&rft.issue=15&rft.spage=4691&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&rft_id=info:doi/10.1021%2Fbi982858v LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Streptococcus pyogenes; Active sites; Crystal structure DO - http://dx.doi.org/10.1021/bi982858v ER - TY - JOUR T1 - Dart model for irradiation-induced swelling of uranium silicide dispersion fuel elements AN - 17253678; 4548110 AB - Models for the interaction of uranium silicide dispersion fuels with an aluminum matrix, for the resultant reaction product swelling, and for the calculation of the stress gradient within the fuel particles are described within the context of DART fission-gas-induced swelling models. The effects of an aluminide shell on fuel particle swelling are evaluated. Validation of the model is demonstrated by comparing DART calculations with irradiation data for the swelling of U sub(3)SiAl-Al and U sub(3)Si sub(2)-Al in variously designed dispersion fuel elements. JF - Nuclear Technology AU - Rest, J AU - Hofman, G L AD - Argonne National Laboratory 9700 South Cass Avenue, Argonne, Il 60439, USA, jrest@anl.gov Y1 - 1999/04// PY - 1999 DA - Apr 1999 SP - 88 EP - 101 VL - 126 IS - 1 SN - 0029-5450, 0029-5450 KW - swelling behavior KW - uranium silicide KW - Health & Safety Science Abstracts KW - Chemical reactions KW - Irradiation KW - Nuclear fuels KW - Aluminum KW - Particulates KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17253678?accountid=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+Technology&rft.atitle=Dart+model+for+irradiation-induced+swelling+of+uranium+silicide+dispersion+fuel+elements&rft.au=Rest%2C+J%3BHofman%2C+G+L&rft.aulast=Rest&rft.aufirst=J&rft.date=1999-04-01&rft.volume=126&rft.issue=1&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=Nuclear+Technology&rft.issn=00295450&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 - Particulates; Aluminum; Chemical reactions; Nuclear fuels; Irradiation ER - TY - JOUR T1 - Physicochemical consequences of amino acid variations that contribute to fibril formation by immunoglobulin light chains. AN - 69643064; 10091653 AB - The most common form of systemic amyloidosis originates from antibody light chains. The large number of amino acid variations that distinguish amyloidogenic from nonamyloidogenic light chain proteins has impeded our understanding of the structural basis of light-chain fibril formation. Moreover, even among the subset of human light chains that are amyloidogenic, many primary structure differences are found. We compared the thermodynamic stabilities of two recombinant kappa4 light-chain variable domains (V(L)s) derived from amyloidogenic light chains with a V(L) from a benign light chain. The amyloidogenic V(L)s were significantly less stable than the benign V(L). Furthermore, only the amyloidogenic V(L)s formed fibrils under native conditions in an in vitro fibril formation assay. We used site-directed mutagenesis to examine the consequences of individual amino acid substitutions found in the amyloidogenic V(L)s on stability and fibril formation capability. Both stabilizing and destabilizing mutations were found; however, only destabilizing mutations induced fibril formation in vitro. We found that fibril formation by the benign V(L) could be induced by low concentrations of a denaturant. This indicates that there are no structural or sequence-specific features of the benign V(L) that are incompatible with fibril formation, other than its greater stability. These studies demonstrate that the V(L) beta-domain structure is vulnerable to destabilizing mutations at a number of sites, including complementarity determining regions (CDRs), and that loss of variable domain stability is a major driving force in fibril formation. JF - Protein science : a publication of the Protein Society AU - Raffen, R AU - Dieckman, L J AU - Szpunar, M AU - Wunschl, C AU - Pokkuluri, P R AU - Dave, P AU - Wilkins Stevens, P AU - Cai, X AU - Schiffer, M AU - Stevens, F J AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Illinois 60439, USA. Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 509 EP - 517 VL - 8 IS - 3 SN - 0961-8368, 0961-8368 KW - Amino Acids KW - 0 KW - Amyloid KW - Immunoglobulin Light Chains KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Amyloid -- biosynthesis KW - Thermodynamics KW - Humans KW - Molecular Sequence Data KW - Microscopy, Electron KW - Amino Acid Sequence KW - Amino Acid Substitution KW - Amino Acids -- chemistry KW - Amino Acids -- genetics KW - Immunoglobulin Light Chains -- genetics KW - Immunoglobulin Light Chains -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69643064?accountid=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=Protein+science+%3A+a+publication+of+the+Protein+Society&rft.atitle=Physicochemical+consequences+of+amino+acid+variations+that+contribute+to+fibril+formation+by+immunoglobulin+light+chains.&rft.au=Raffen%2C+R%3BDieckman%2C+L+J%3BSzpunar%2C+M%3BWunschl%2C+C%3BPokkuluri%2C+P+R%3BDave%2C+P%3BWilkins+Stevens%2C+P%3BCai%2C+X%3BSchiffer%2C+M%3BStevens%2C+F+J&rft.aulast=Raffen&rft.aufirst=R&rft.date=1999-03-01&rft.volume=8&rft.issue=3&rft.spage=509&rft.isbn=&rft.btitle=&rft.title=Protein+science+%3A+a+publication+of+the+Protein+Society&rft.issn=09618368&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-05-06 N1 - Date created - 1999-05-06 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Adv Protein Chem. 1995;46:217-47 [7771319] Proc Natl Acad Sci U S A. 1994 Jun 7;91(12):5446-50 [8202506] Biochemistry. 1995 Aug 29;34(34):10697-702 [7662653] Proc Natl Acad Sci U S A. 1995 Oct 10;92(21):9490-4 [7568160] Protein Sci. 1995 Oct;4(10):2073-81 [8535243] Biochemistry. 1996 May 21;35(20):6470-82 [8639594] Biochim Biophys Acta. 1996 Dec 16;1317(3):161-7 [8988231] Protein Sci. 1997 Jan;6(1):233-41 [9007995] Nature. 1997 Feb 27;385(6619):787-93 [9039909] Adv Protein Chem. 1997;50:183-242 [9338082] Mod Pathol. 1997 Oct;10(10):1059-65 [9346188] Nat Biotechnol. 1996 Oct;14(10):1283-7 [9631094] Biophys J. 1998 Jul;75(1):484-92 [9649410] Protein Eng. 1998 Apr;11(4):303-9 [9680192] Mol Immunol. 1997 Dec;34(18):1291-301 [9683271] Proc Natl Acad Sci U S A. 1998 Aug 4;95(16):9547-51 [9689117] Biochemistry. 1998 Sep 22;37(38):13120-7 [9748318] Adv Protein Chem. 1968;23:121-282 [4882248] Proc Natl Acad Sci U S A. 1970 Aug;66(4):1044-51 [4097575] Science. 1971 Nov 12;174(4010):712-4 [5123421] Immunochemistry. 1972 Jan;9(1):9-16 [5064937] J Immunol. 1973 Jul;111(1):10-23 [4123366] Biochemistry. 1974 Mar 12;13(6):1289-94 [4360785] J Mol Biol. 1975 May 25;94(3):441-8 [1100841] Gene. 1982 Oct;19(3):259-68 [6295879] Biochemistry. 1983 May 24;22(11):2654-8 [6871153] Trends Biotechnol. 1994 May;12(5):193-8 [7764903] Postgrad Med. 1994 Oct;96(5):119-22, 126-7 [7937410] Biochemistry. 1995 Feb 14;34(6):2034-41 [7849061] Methods Enzymol. 1987;154:367-82 [3323813] Nucleic Acids Res. 1988 Aug 11;16(15):7351-67 [3045756] Biochemistry. 1988 Oct 18;27(21):8063-8 [3233195] Anal Biochem. 1989 Mar;177(2):244-9 [2729542] J Histochem Cytochem. 1989 Aug;37(8):1273-81 [2666510] J Histochem Cytochem. 1989 Aug;37(8):1293-7 [2666512] Blood. 1990 Feb 1;75(3):531-45 [2137018] Biochemistry. 1991 Oct 29;30(43):10428-35 [1931967] Annu Rev Biochem. 1992;61:947-75 [1497327] Biochemistry. 1992 Sep 15;31(36):8654-60 [1390650] Eur J Immunol. 1993 Dec;23(12):3248-62 [8258341] Biol Chem Hoppe Seyler. 1993 Dec;374(12):1117-22 [8129857] Protein Sci. 1995 Mar;4(3):421-32 [7795526] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Heavy element isotopic abundances from individual circumstellar grains isolated from meteorites; nucleosynthetic signatures of individual stars AN - 52378613; 2000-027575 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Pellin, M J AU - Nicolussi, G K AU - Davis, A M AU - Lewis, R S AU - Clayton, R N AU - Morss, L R Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 034 PB - American Chemical Society, Washington, DC VL - 217, Part 2 SN - 0065-7727, 0065-7727 KW - meteorites KW - alkaline earth metals KW - isotopes KW - stars KW - nobelium KW - metals KW - zirconium KW - cosmochemistry KW - actinides KW - strontium KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52378613?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Heavy+element+isotopic+abundances+from+individual+circumstellar+grains+isolated+from+meteorites%3B+nucleosynthetic+signatures+of+individual+stars&rft.au=Pellin%2C+M+J%3BNicolussi%2C+G+K%3BDavis%2C+A+M%3BLewis%2C+R+S%3BClayton%2C+R+N%3BMorss%2C+L+R&rft.aulast=Pellin&rft.aufirst=M&rft.date=1999-03-01&rft.volume=217%2C+Part+2&rft.issue=&rft.spage=034&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 217th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; cosmochemistry; isotopes; metals; meteorites; nobelium; stars; strontium; zirconium ER - TY - JOUR T1 - The structure of actinide ions exchanged into smectite clays AN - 52375922; 2000-027586 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Wasserman, Stephen R AU - Soderholm, L AU - Williams, C W AU - Antonio, M R AU - Morss, L R Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 198 PB - American Chemical Society, Washington, DC VL - 217, Part 2 SN - 0065-7727, 0065-7727 KW - silicates KW - cation exchange capacity KW - bentonite KW - clay mineralogy KW - smectite KW - ions KW - clay minerals KW - molecular structure KW - sedimentary rocks KW - neptunyl KW - metals KW - uranyl KW - sheet silicates KW - valency KW - ion exchange KW - clastic rocks KW - actinides KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52375922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=The+structure+of+actinide+ions+exchanged+into+smectite+clays&rft.au=Wasserman%2C+Stephen+R%3BSoderholm%2C+L%3BWilliams%2C+C+W%3BAntonio%2C+M+R%3BMorss%2C+L+R&rft.aulast=Wasserman&rft.aufirst=Stephen&rft.date=1999-03-01&rft.volume=217%2C+Part+2&rft.issue=&rft.spage=198&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 217th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; bentonite; cation exchange capacity; clastic rocks; clay mineralogy; clay minerals; ion exchange; ions; metals; molecular structure; neptunyl; sedimentary rocks; sheet silicates; silicates; smectite; uranyl; valency ER - TY - JOUR T1 - Crystal truncation and water adsorption at the calcite-water interface using X-ray reflectivity AN - 52283523; 2001-002149 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Fenter, P AU - Geissbuehler, P AU - DiMasi, E AU - Srajer, G AU - Sorensen, L B AU - Sturchio, Neil C AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 EP - unpaginated PB - American Chemical Society, Washington, DC VL - 217 IS - Part 1 SN - 0065-7727, 0065-7727 KW - mineral-water interface KW - crystal structure KW - crystal growth KW - relaxation KW - adsorption KW - simulation KW - temperature KW - calcite KW - X-ray data KW - low temperature KW - crystal dislocations KW - carbonates KW - chemical fractionation KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52283523?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Crystal+truncation+and+water+adsorption+at+the+calcite-water+interface+using+X-ray+reflectivity&rft.au=Fenter%2C+P%3BGeissbuehler%2C+P%3BDiMasi%2C+E%3BSrajer%2C+G%3BSorensen%2C+L+B%3BSturchio%2C+Neil+C%3BAnonymous&rft.aulast=Fenter&rft.aufirst=P&rft.date=1999-03-01&rft.volume=217&rft.issue=Part+1&rft.spage=&rft.isbn=0841236720&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Chemical Society 217th national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; calcite; carbonates; chemical fractionation; crystal dislocations; crystal growth; crystal structure; low temperature; mineral-water interface; relaxation; simulation; temperature; X-ray data ER - TY - JOUR T1 - Structure and growth of stearate monolayers on the calcite(104) surface; first results of an in-situ X-ray reflectivity study AN - 52279890; 2001-002170 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Sturchio, Neil C AU - Fenter, P AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 EP - unpaginated PB - American Chemical Society, Washington, DC VL - 217 IS - Part 1 SN - 0065-7727, 0065-7727 KW - liquid phase KW - surface properties KW - mineral-water interface KW - crystal structure KW - crystal growth KW - adsorption KW - X-ray spectra KW - layered materials KW - calcite KW - molecular structure KW - chemical properties KW - spectra KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52279890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Structure+and+growth+of+stearate+monolayers+on+the+calcite%28104%29+surface%3B+first+results+of+an+in-situ+X-ray+reflectivity+study&rft.au=Sturchio%2C+Neil+C%3BFenter%2C+P%3BAnonymous&rft.aulast=Sturchio&rft.aufirst=Neil&rft.date=1999-03-01&rft.volume=217&rft.issue=Part+1&rft.spage=&rft.isbn=0841236720&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Chemical Society 217th national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; calcite; carbonates; chemical properties; crystal growth; crystal structure; layered materials; liquid phase; mineral-water interface; molecular structure; spectra; surface properties; X-ray spectra ER - TY - JOUR T1 - Stable chlorine isotope analysis; a potential tool to investigate the sources and fates of chlorinated semivolatile organic compounds in aquatic sediments AN - 52144529; 2002-018477 JF - Abstracts with Programs - Geological Society of America AU - Reddy, Christopher M AU - Heraty, Linnea J AU - Sturchio, Neil C AU - Eglinton, Timothy I AU - Anonymous Y1 - 1999/03// PY - 1999 DA - March 1999 SP - 62 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 2 SN - 0016-7592, 0016-7592 KW - chlorine KW - chlorinated hydrocarbons KW - semivolatile organic compounds KW - insecticides KW - isotopes KW - pollutants KW - isotope ratios KW - PCBs KW - halogens KW - pollution KW - organochlorine pesticides KW - stable isotopes KW - toxaphene KW - volatiles KW - organic compounds KW - transport KW - DDT KW - Cl-37/Cl-35 KW - sediments KW - halogenated hydrocarbons KW - pesticides KW - aquatic environment KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52144529?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stable+chlorine+isotope+analysis%3B+a+potential+tool+to+investigate+the+sources+and+fates+of+chlorinated+semivolatile+organic+compounds+in+aquatic+sediments&rft.au=Reddy%2C+Christopher+M%3BHeraty%2C+Linnea+J%3BSturchio%2C+Neil+C%3BEglinton%2C+Timothy+I%3BAnonymous&rft.aulast=Reddy&rft.aufirst=Christopher&rft.date=1999-03-01&rft.volume=31&rft.issue=2&rft.spage=62&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, Northeastern Section, 34rd 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 - 2002-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquatic environment; chlorinated hydrocarbons; chlorine; Cl-37/Cl-35; DDT; halogenated hydrocarbons; halogens; insecticides; isotope ratios; isotopes; organic compounds; organochlorine pesticides; PCBs; pesticides; pollutants; pollution; sediments; semivolatile organic compounds; stable isotopes; toxaphene; transport; volatiles ER - TY - JOUR T1 - Energy Consumption and Acid Deposition in Northeast Asia AN - 17413019; 4630413 AB - Northeast Asia is one of the most dynamic and diverse regions of the world. Fueled by high population growth and vibrant economies, energy consumption is currently 12% of the world's total and projected to increase by a factor of 2 to 3 by 2030. Because fossil fuels will provide much of this energy, emissions of sulfur dioxide are projected to increase by about the same amount. Northeast China is the main emitting region, and sulfur is transported across the Korean peninsula to Japan and beyond. Acid deposition is evident today and will increase dramatically in the future. It is projected that severe damage to ecosystems will occur throughout the region without the introduction of emission controls. Abatement technology could cost USD 10-30 billion annually by 2030 and still provide only partial protection. There is an urgent need for regional cooperation to improve the level of scientific understanding and develop a basis for regionwide control strategies. JF - Ambio AU - Streets, D G AU - Carmichael, G R AU - Amann, M AU - Arndt, R L AD - Argonne National Laboratory, DIS/900, 9700 South Cass Avenue, Argonne, IL 60439, USA, dstreets@anl.gov Y1 - 1999/03// PY - 1999 DA - Mar 1999 SP - 135 EP - 143 VL - 28 IS - 2 SN - 0044-7447, 0044-7447 KW - Asia, Northeast KW - Pollution Abstracts KW - Acid rain KW - Fossil fuels KW - Combustion products KW - Air pollution control KW - Emission control KW - Energy consumption KW - Economics KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17413019?accountid=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=Ambio&rft.atitle=Energy+Consumption+and+Acid+Deposition+in+Northeast+Asia&rft.au=Streets%2C+D+G%3BCarmichael%2C+G+R%3BAmann%2C+M%3BArndt%2C+R+L&rft.aulast=Streets&rft.aufirst=D&rft.date=1999-03-01&rft.volume=28&rft.issue=2&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Ambio&rft.issn=00447447&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 - Economics; Emission control; Air pollution control; Acid rain; Energy consumption; Fossil fuels; Combustion products ER - TY - JOUR T1 - Properties of water in calcium- and hexadecyltrimethylammonium-exchanged bentonite AN - 52492740; 1999-030566 AB - Dynamical and thermodynamic properties of water at room temperature in Ca- and hexadecyltrimethylammonium- (HDTMA) exchanged bentonite were determined for 4 different water contents ( approximately 0.03-0.55 g water g (super -1) clay). Incoherent quasi-elastic neutron scattering (QENS) was used to measure the translational and rotational mobility of water in the clays, while chilled mirror dewpoint psychrometry measured water activity of the samples, differential scanning calorimetry (DSC) provided information about the temperature of dehydration and X-ray diffraction (XRD) quantified layer spacings for the clays. The neutron scattering data were fit to a jump diffusion model that yielded mean jump lengths, jump diffusion residence times and rotational relaxation times for water in the clays. Mean jump lengths were quite similar for the 2 different cation saturations at equivalent water contents, and decreased with increasing water content. The fitted jump lengths ranged from 0.27-0.5 nm and were 2-4 times larger than that found for bulk water (0.13 nm). Jump diffusion residence times were 3-30 times longer than that for bulk water (1.2 ps) and also decreased with increasing water content. The residence times were somewhat shorter for HDTMA-clay as compared with Ca-clay at equivalent water contents. Rotational motion was less strongly influenced than translational motion by the presence of the clay surface. The energy state of water in the 2 cation saturations were quite different; dehydration temperatures for the HDTMA-clay were approximately 30 degrees C lower than the Ca-clay at equal water contents, while water activities, as P/P (super 0) , were up to 0.6 units higher. A linear relationship was found between water activity and the translational diffusion coefficient, although at the highest water content, the diffusion coefficient of water for the HDTMA-clay was approximately 30% higher than that measured for bulk water. JF - Clays and Clay Minerals AU - Anderson, Michael A AU - Trouw, Frans R AU - Tam, Cheok N Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 28 EP - 35 PB - Clay Minerals Society, Clarkson, NY VL - 47 IS - 1 SN - 0009-8604, 0009-8604 KW - water KW - calcium KW - alkaline earth metals KW - experimental studies KW - diffusion KW - cation exchange capacity KW - bentonite KW - hexadecyltrimethylammonium KW - clay mineralogy KW - sedimentary rocks KW - metals KW - chemical properties KW - thermodynamic properties KW - geochemistry KW - clastic rocks 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/52492740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Properties+of+water+in+calcium-+and+hexadecyltrimethylammonium-exchanged+bentonite&rft.au=Anderson%2C+Michael+A%3BTrouw%2C+Frans+R%3BTam%2C+Cheok+N&rft.aulast=Anderson&rft.aufirst=Michael&rft.date=1999-02-01&rft.volume=47&rft.issue=1&rft.spage=28&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 28 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - alkaline earth metals; bentonite; calcium; cation exchange capacity; chemical properties; clastic rocks; clay mineralogy; diffusion; experimental studies; geochemistry; hexadecyltrimethylammonium; metals; sedimentary rocks; thermodynamic properties; water ER - TY - JOUR T1 - On the use of infrared spectroscopy to determine hydroxyl content and reactivity of O-acetylated and O-alkylated coals AN - 52474984; 1999-042204 AB - Infrared spectroscopy was used to examine the O-alkylation and O-acetylation of two bituminous coals with a series of reagents. Two related aspects were investigated: We attempted to apply quantitative methods to calculate the reactivity using the hydroxyl absorption bands and to calculate the total alkyl or acyl groups incorporated using specific coal bands. The latter work showed that the use of IR coal bands to determine the amount of added groups can only be used qualitatively due to unpredictable changes in the coal band intensities. Quantitative monitoring of the hydroxyl groups showed that, in some reactions, more hydroxyl was found in the coal after reaction, suggesting that there was little reaction and mostly trapping of hydrolyzed reagent into the coal. JF - Energy & Fuels AU - Dyrkacz, Gary R AU - Bloomquist, C A A Y1 - 1999/02// PY - 1999 DA - February 1999 SP - 40 EP - 52 PB - American Chemical Society, [Washington, DC] VL - 13 IS - 1 SN - 0887-0624, 0887-0624 KW - acetylene KW - alkylation KW - aliphatic hydrocarbons KW - bituminous coal KW - infrared spectra KW - hydroxyl ion KW - organic compounds KW - sedimentary rocks KW - reagents KW - chemical reactions KW - coal KW - alkynes KW - hydrocarbons KW - spectra KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52474984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Fuels&rft.atitle=On+the+use+of+infrared+spectroscopy+to+determine+hydroxyl+content+and+reactivity+of+O-acetylated+and+O-alkylated+coals&rft.au=Dyrkacz%2C+Gary+R%3BBloomquist%2C+C+A+A&rft.aulast=Dyrkacz&rft.aufirst=Gary&rft.date=1999-02-01&rft.volume=13&rft.issue=1&rft.spage=40&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Fuels&rft.issn=08870624&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC] N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ENFUEM N1 - SubjectsTermNotLitGenreText - acetylene; aliphatic hydrocarbons; alkylation; alkynes; bituminous coal; chemical reactions; coal; geochemistry; hydrocarbons; hydroxyl ion; infrared spectra; organic compounds; reagents; sedimentary rocks; spectra ER - TY - JOUR T1 - Nanometre-scale rolling and sliding of carbon nanotubes AN - 787392711; 13740986 AB - Understanding the relative motion of objects in contact is essential for controlling macroscopic lubrication and adhesion, for comprehending biological macromolecular interfaces, and for developing submicrometre-scale electromechanical devices,. An object undergoing lateral motion while in contact with a second object can either roll or slide. The resulting energy loss and mechanical wear depend largely on which mode of motion occurs. At the macroscopic scale, rolling is preferred over sliding, and it is expected to have an equally important role in the microscopic domain. Although progress has been made in our understanding of the dynamics of sliding at the atomic level, we have no comparable insight into rolling owing to a lack of experimental data on microscopic length scales. Here we produce controlled rolling of carbon nanotubes on graphite surfaces using an atomic force microscope. We measure the accompanying energy loss and compare this with sliding. Moreover, by reproducibly rolling a nanotube to expose different faces to the substrate and to an external probe, we are able to study the object over its complete surface. JF - Nature AU - Falvo, M R AU - Taylor II, RM AU - Helser, A AU - Chi, V AU - Brooks Jr, FP AU - Washburn, S AU - Superfine, R AD - [1] Departments of Physics and Astronomy [2] Departments of North Carolina Center for Nanoscale Materials, University of North Carolina, Chapel Hill, North Carolina 27599, USA Y1 - 1999/01/21/ PY - 1999 DA - 1999 Jan 21 SP - 236 EP - 238 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 397 IS - 6716 SN - 0028-0836, 0028-0836 KW - Solid State and Superconductivity Abstracts (SO); Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA); Computer and Information Systems Abstracts (CI); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/787392711?accountid=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=Nature&rft.atitle=Nanometre-scale+rolling+and+sliding+of+carbon+nanotubes&rft.au=Falvo%2C+M+R%3BTaylor+II%2C+RM%3BHelser%2C+A%3BChi%2C+V%3BBrooks+Jr%2C+FP%3BWashburn%2C+S%3BSuperfine%2C+R&rft.aulast=Falvo&rft.aufirst=M&rft.date=1999-01-21&rft.volume=397&rft.issue=6716&rft.spage=236&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/10.1038%2F16662 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Last updated - 2011-11-14 DO - http://dx.doi.org/10.1038/16662 ER - TY - JOUR T1 - Interaction between alpha 5 beta 1 integrin and secreted fibronectin is involved in macrophage differentiation of human HL-60 myeloid leukemia cells. AN - 69554507; 9886414 AB - We examined the role of fibronectin (FN) and FN-binding integrins in macrophage differentiation. Increased FN and alpha5beta1 integrin gene expression was observed in phorbol 12-myristate 13-acetate PMA-treated HL-60 cells and PMA- or macrophage-CSF-treated blood monocytes before the manifestation of macrophage markers. After treatment of HL-60 cells and monocytes, newly synthesized FN was released and deposited on the dishes. An HL-60 cell variant, HL-525, which is deficient in the protein kinase Cbeta (PKC-beta) and resistant to PMA-induced differentiation, failed to express FN after PMA treatment. Transfecting HL-525 cells with a PKC-beta expression plasmid restored PMA-induced FN gene expression and macrophage differentiation. Untreated HL-525 cells (which have a high level of the alpha5beta1 integrin) incubated on FN differentiated into macrophages. The percentage of cells having a macrophage phenotype induced by PMA in HL-60 cells, by FN in HL-525 cells, or by either PMA or macrophage-CSF in monocytes was reduced in the presence of mAbs to FN and alpha5beta1 integrin. The integrin-signaling nonreceptor tyrosine kinase, p72Syk, was activated in PMA-treated HL-60 and FN-treated HL-525 cells. We suggest that macrophage differentiation involves the activation of PKC-beta and expression of extracellular matrix proteins such as FN and the corresponding integrins, alpha5beta1 integrin in particular. The stimulated cells, through the integrins, attach to substrates by binding to the deposited FN. This attachment, in turn, may through integrin signaling activate nonreceptor tyrosine kinases, including p72Syk, and later lead to expression of other genes involved in evoking the macrophage phenotype. JF - Journal of immunology (Baltimore, Md. : 1950) AU - Laouar, A AU - Collart, F R AU - Chubb, C B AU - Xie, B AU - Huberman, E AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439, USA. Y1 - 1999/01/01/ PY - 1999 DA - 1999 Jan 01 SP - 407 EP - 414 VL - 162 IS - 1 SN - 0022-1767, 0022-1767 KW - Enzyme Precursors KW - 0 KW - Fibronectins KW - Intracellular Signaling Peptides and Proteins KW - Isoenzymes KW - Receptors, Fibronectin KW - Protein-Tyrosine Kinases KW - EC 2.7.10.1 KW - SYK protein, human KW - EC 2.7.10.2 KW - Syk Kinase KW - Protein Kinase C KW - EC 2.7.11.13 KW - Protein Kinase C beta KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Abridged Index Medicus KW - Index Medicus KW - Enzyme Precursors -- metabolism KW - HL-60 Cells KW - Humans KW - Gene Expression Regulation, Neoplastic -- immunology KW - Protein-Tyrosine Kinases -- metabolism KW - Cell Differentiation -- immunology KW - Tumor Cells, Cultured KW - Isoenzymes -- physiology KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Protein Kinase C -- physiology KW - Cell Differentiation -- drug effects KW - Enzyme Activation -- immunology KW - Macrophages -- cytology KW - Macrophages -- secretion KW - Leukemia, Promyelocytic, Acute -- immunology KW - Fibronectins -- physiology KW - Leukemia, Promyelocytic, Acute -- genetics KW - Leukemia, Promyelocytic, Acute -- pathology KW - Fibronectins -- genetics KW - Fibronectins -- secretion KW - Macrophages -- drug effects KW - Receptors, Fibronectin -- physiology KW - Fibronectins -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69554507?accountid=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+immunology+%28Baltimore%2C+Md.+%3A+1950%29&rft.atitle=Interaction+between+alpha+5+beta+1+integrin+and+secreted+fibronectin+is+involved+in+macrophage+differentiation+of+human+HL-60+myeloid+leukemia+cells.&rft.au=Laouar%2C+A%3BCollart%2C+F+R%3BChubb%2C+C+B%3BXie%2C+B%3BHuberman%2C+E&rft.aulast=Laouar&rft.aufirst=A&rft.date=1999-01-01&rft.volume=162&rft.issue=1&rft.spage=407&rft.isbn=&rft.btitle=&rft.title=Journal+of+immunology+%28Baltimore%2C+Md.+%3A+1950%29&rft.issn=00221767&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-01-21 N1 - Date created - 1999-01-21 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Influence of sorbate-sorbent interactions on the crystallization kinetics of nickel- and lead-ferrihydrite coprecipitates AN - 52478791; 1999-038306 AB - To test the hypothesis that the crystallization rate (R (sub cry) ) for Ni- or Pb-ferrihydrite coprecipitates will decrease as a function of the coprecipitated metal in the order R (sub cry,Ni) > R (sub cry,Pb) , the kinetics of Fe (hydr)oxide crystallization as influenced by Pb and Ni sorption at various surface loadings were examined. Transformation kinetics were measured on aging metal-ferrihydrite co-precipitates using selective extraction of ferrihydrite with physical characterization of the aged solid. The influence that Ni and Pb exerted on the crystallization process was metal-specific and inconsistent with predictions based on model-derived stabilities for the metal-ferrihydrite sorption complex. Pb did not retard ferrihydrite transformation to a greater extent than Ni. Sorbed Pb primarily existed as an inner-sphere surface complex in aged solids. The results have important implications for determining the role that ferrihydrite and other metastable sorbent phases may have in controlling metal cycling in the environment. JF - Geochimica et Cosmochimica Acta AU - Ford, Robert G AU - Kemner, K M AU - Bertsch, Paul M Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 39 EP - 48 PB - Pergamon, Oxford VL - 63 IS - 1 SN - 0016-7037, 0016-7037 KW - sorption KW - iron oxides KW - goethite KW - X-ray diffraction data KW - complexing KW - data processing KW - stability KW - lead KW - crystal growth KW - laboratory studies KW - chemical reactions KW - quantitative analysis KW - phase equilibria KW - hematite KW - Fourier analysis KW - oxides KW - spectra KW - geochemistry KW - pH KW - high-resolution methods KW - experimental studies KW - ferrihydrite KW - X-ray spectra KW - iron hydroxides KW - hydroxides KW - precipitation KW - metals KW - nickel KW - EXAFS data KW - crystallization KW - TGA data 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/52478791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+sorbate-sorbent+interactions+on+the+crystallization+kinetics+of+nickel-+and+lead-ferrihydrite+coprecipitates&rft.au=Ford%2C+Robert+G%3BKemner%2C+K+M%3BBertsch%2C+Paul+M&rft.aulast=Ford&rft.aufirst=Robert&rft.date=1999-01-01&rft.volume=63&rft.issue=1&rft.spage=39&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2899%2900010-1 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1999-01-01 N1 - Number of references - 58 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; complexing; crystal growth; crystallization; data processing; EXAFS data; experimental studies; ferrihydrite; Fourier analysis; geochemistry; goethite; hematite; high-resolution methods; hydroxides; iron hydroxides; iron oxides; laboratory studies; lead; metals; nickel; oxides; pH; phase equilibria; precipitation; quantitative analysis; sorption; spectra; stability; TGA data; X-ray diffraction data; X-ray spectra DO - http://dx.doi.org/10.1016/S0016-7037(99)00010-1 ER - TY - JOUR T1 - Carbon and chlorine isotope fractionation of chlorinated aliphatic hydrocarbons by evaporation AN - 52433066; 1999-066472 JF - Organic Geochemistry AU - Huang, L AU - Sturchio, N C AU - Abrajano, Teofilo A, Jr AU - Heraty, L J AU - Holt, B D A2 - Lollar, Barbara Sherwood Y1 - 1999 PY - 1999 DA - 1999 SP - 777 EP - 785 PB - Pergamon, Oxford-New York VL - 30 IS - 8A SN - 0146-6380, 0146-6380 KW - chlorine KW - chlorinated hydrocarbons KW - methylene chloride KW - isotope fractionation KW - biodegradation KW - experimental studies KW - degradation KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - halogens KW - aliphatic hydrocarbons KW - pollution KW - stable isotopes KW - organic compounds KW - evaporation KW - solvents KW - carbon KW - Cl-37/Cl-35 KW - hydrocarbons KW - halogenated hydrocarbons KW - trichloroethylene KW - kinetics KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52433066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Organic+Geochemistry&rft.atitle=Carbon+and+chlorine+isotope+fractionation+of+chlorinated+aliphatic+hydrocarbons+by+evaporation&rft.au=Huang%2C+L%3BSturchio%2C+N+C%3BAbrajano%2C+Teofilo+A%2C+Jr%3BHeraty%2C+L+J%3BHolt%2C+B+D&rft.aulast=Huang&rft.aufirst=L&rft.date=1999-01-01&rft.volume=30&rft.issue=8A&rft.spage=777&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01466380 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 26 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; biodegradation; C-13/C-12; carbon; chlorinated hydrocarbons; chlorine; Cl-37/Cl-35; degradation; evaporation; experimental studies; halogenated hydrocarbons; halogens; hydrocarbons; isotope fractionation; isotope ratios; isotopes; kinetics; methylene chloride; organic compounds; pollution; solvents; stable isotopes; trichloroethylene ER - TY - JOUR T1 - Carbon isotopic fractionation during reductive dehalogenation of chlorinated ethenes by metallic iron AN - 52431601; 1999-066470 JF - Organic Geochemistry AU - Dayan, H AU - Abrajano, T A, Jr AU - Sturchio, N C AU - Winsor, L AU - Abrajano, Teofilo A, Jr A2 - Lollar, Barbara Sherwood Y1 - 1999 PY - 1999 DA - 1999 SP - 755 EP - 763 PB - Pergamon, Oxford-New York VL - 30 IS - 8A SN - 0146-6380, 0146-6380 KW - chlorinated hydrocarbons KW - isotope fractionation KW - isotopes KW - gas chromatograms KW - aliphatic hydrocarbons KW - mass spectra KW - stable isotopes KW - iron KW - remediation KW - ground water KW - ethylene KW - solvents KW - carbon KW - alkenes KW - halogenated hydrocarbons KW - spectra KW - isotope ratios KW - C-13/C-12 KW - surface water KW - pollution KW - organic compounds KW - metals KW - hydrocarbons KW - trichloroethylene KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52431601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Organic+Geochemistry&rft.atitle=Carbon+isotopic+fractionation+during+reductive+dehalogenation+of+chlorinated+ethenes+by+metallic+iron&rft.au=Dayan%2C+H%3BAbrajano%2C+T+A%2C+Jr%3BSturchio%2C+N+C%3BWinsor%2C+L%3BAbrajano%2C+Teofilo+A%2C+Jr&rft.aulast=Dayan&rft.aufirst=H&rft.date=1999-01-01&rft.volume=30&rft.issue=8A&rft.spage=755&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01466380 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 12 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkenes; C-13/C-12; carbon; chlorinated hydrocarbons; ethylene; gas chromatograms; ground water; halogenated hydrocarbons; hydrocarbons; iron; isotope fractionation; isotope ratios; isotopes; mass spectra; metals; organic compounds; pollution; remediation; solvents; spectra; stable isotopes; surface water; trichloroethylene ER - TY - JOUR T1 - Radionuclide retardation in uranyl silicate forming in a geological repository for nuclear waste AN - 52370087; 2000-031102 AB - Laboratory simulations have demonstrated that uranyl silicates will be dominant alteration products of spent nuclear fuel in a geological repository under moist silica-rich oxidizing conditions. Uranyl silicates have also been identified as alteration phases on hydrated actinide-bearing borosilicate waste glass. In both cases, the expected paragenesis is similar to that found in natural analogues, and includes the uranyl silicate minerals boltwoodite, uranophane, weeksite and haiweeite. These minerals may incorporate environmentally important fission products such as (super 135) Cs, (super 137) Cs and (super 90) Sr, and actinides such as Np and Am, thus becoming the source term for these radionuclides. We are investigating the incorporation of radionuclides into uranyl silicates by synthesis experiments, ion exchange experiments, and crystal structure studies of natural and synthetic crystals. Boltwoodite, a hydrated K-Na uranyl silicate, may impact upon the mobility of Cs and Sr. The structure contains sheets of uranyl and silicate polyhedra, with low-valence cations and H (sub 2) O groups in the interlayers. Ion exchange experiments have demonstrated that the interlayer cations can be readily exchanged with Cs. Synthesis of a Sr-substituted boltwoodite, in which half of the K cations have been replaced by Sr, has been demonstrated by structure determination. The structure of the new compound KNa (sub 3) (UO (sub 2) ) (sub 2) (Si (sub 4) O (sub 10) ) (sub 2) (H (sub 2) O) (sub 4) , that formed during vapor hydration of an actinide-bearing borosilicate waste glass, contains sheets of four- and eight-membered vertex-sharing silicate tetrahedra linked into an open framework by sharing polyhedral elements with uranyl square bipyramids. Large channels and voids in the structure contain low-valence cations and H (sub 2) O groups. The flexibility of these structural sites indicates there is potential for this phase to incorporate radionuclides from a variety of nuclear waste glasses over a wide range of environmental conditions. JF - Abstracts with Programs - Geological Society of America AU - Burns, Peter C AU - Hill, Frances C AU - Finch, Robert J AU - Olson, Rudolph A AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 135 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - silicates KW - Sr-90 KW - alteration KW - neptunium KW - isotopes KW - substitution KW - crystal structure KW - simulation KW - radioactive waste KW - radioactive isotopes KW - cesium KW - orthosilicates KW - weeksite KW - water KW - haiweeite KW - alkaline earth metals KW - experimental studies KW - oxidation KW - alkali metals KW - uranyl ion KW - paragenesis KW - nesosilicates KW - borosilicates KW - Cs-137 KW - metals KW - natural analogs KW - americium KW - cations KW - Cs-135 KW - uranium KW - waste disposal KW - uranophane 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/52370087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Radionuclide+retardation+in+uranyl+silicate+forming+in+a+geological+repository+for+nuclear+waste&rft.au=Burns%2C+Peter+C%3BHill%2C+Frances+C%3BFinch%2C+Robert+J%3BOlson%2C+Rudolph+A%3BAnonymous&rft.aulast=Burns&rft.aufirst=Peter&rft.date=1999-01-01&rft.volume=31&rft.issue=7&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, 1999 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; alkaline earth metals; alteration; americium; borosilicates; cations; cesium; crystal structure; Cs-135; Cs-137; experimental studies; haiweeite; isotopes; metals; natural analogs; neptunium; nesosilicates; orthosilicates; oxidation; paragenesis; radioactive isotopes; radioactive waste; silicates; simulation; Sr-90; strontium; substitution; uranium; uranophane; uranyl ion; waste disposal; water; weeksite ER - TY - JOUR T1 - Uranium mineralogy and the geologic disposal of spent nuclear fuel AN - 52370072; 2000-031097 AB - The safe disposal of high-level nuclear waste represents one of the most daunting tasks facing modern society. This disposal will require the development of a multi-barrier engineered disposal system that will effectively isolate waste radionuclides from the biosphere for a period of 100,000 years or more. Radionuclides contained in spent fuel represent the largest curie content inventory for any nuclear waste form in the United States due to the large volume of spent fuel that currently exists and the high concentration of radionuclides associated with the spent fuel rods. Alteration phases may exert strong controls on the corrosion behavior of spent nuclear fuel and the release of contained radionuclides. Several studies looking at the long-term corrosion of synthetic uranium oxide, spent nuclear fuel, and naturally weathered uraninite indicate that a paragenetic sequence of uranyl alteration phases will occur in the following order: uraninite, schoepite group phases, alkali+alkaline earth uranyl-oxide hydrates, uranyl silicates, and finally, alkali+alkaline earth uranyl silicates. Experimental studies have also demonstrated that a large proportion of radionuclides contained in spent fuel, including isotopes of Cs, Sr, Mo, Np, Ce, and Nd (the latter two as surrogates for Pu and Am, respectively) may be incorporated in these phases, thereby significantly retarding their migration following the alteration of spent nuclear fuel. JF - Abstracts with Programs - Geological Society of America AU - Wronkiewicz, David J AU - Kim, Cheol-Woon AU - Buck, Edgar C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 135 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - silicates KW - hydrates KW - alteration KW - neptunium KW - isotopes KW - plutonium KW - radioactive waste KW - cerium KW - radioactive isotopes KW - cesium KW - molybdenum KW - oxides KW - rare earths KW - schoepite KW - migration KW - high-level waste KW - alkaline earth metals KW - uranium oxide KW - alkali metals KW - hydroxides KW - metals KW - americium KW - uranium KW - waste disposal KW - neodymium KW - uraninite KW - actinides KW - strontium KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52370072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Uranium+mineralogy+and+the+geologic+disposal+of+spent+nuclear+fuel&rft.au=Wronkiewicz%2C+David+J%3BKim%2C+Cheol-Woon%3BBuck%2C+Edgar+C%3BAnonymous&rft.aulast=Wronkiewicz&rft.aufirst=David&rft.date=1999-01-01&rft.volume=31&rft.issue=7&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, 1999 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; alkaline earth metals; alteration; americium; cerium; cesium; high-level waste; hydrates; hydroxides; isotopes; metals; migration; molybdenum; neodymium; neptunium; oxides; plutonium; radioactive isotopes; radioactive waste; rare earths; schoepite; silicates; strontium; United States; uraninite; uranium; uranium oxide; waste disposal ER - TY - JOUR T1 - The role of radiogenic Pb in the alteration and paragenesis of uranium minerals AN - 52369263; 2000-031094 AB - Because U is radioactive and decays to Pb, the mineralogy of U is intimately tied to the geochemistry of Pb. As radiogenic Pb accumulates in a mineral, U content must decrease concomitantly. The combination of these two effect can destabilize many U-mineral structures. Under reducing conditions, Pb released from U minerals commonly forms galena, which has a larger molar volume than uraninite (52.4 Aa3/mol and 40.4 Aa3/mol, respectively). Precipitation of galena within uraninite can strain the host crystal, helping to break it apart and provide pathways for groundwater infiltration. re-crystallization of uraninite caused by accumulation of radiogenic Pb results in a net volume decrease of the original uraninite, without necessarily any loss of U to groundwater. Under oxidizing conditions, Pb can combine with uranyl ions to form one or more of approximately 30 Pb-uranyl minerals. Accumulation of radiogenic Pb can cause continual re-crystallization of uranyl minerals. Precipitation of Pb-uranyl minerals within a nominally Pb-free host with the same or similar structure can produce crystallographically oriented inclusions of Pb-uranyl minerals that may confuse analytical interpretations, helping to explain conflicting or inconsistent structural and chemical data for several uranyl minerals. Due to the different mobilities of Pb and U in most groundwaters, Pb-bearing uranyl minerals dissolve incongruently, releasing some U while locally retaining Pb in newly formed uranyl minerals. By stabilizing U-bearing solids, radiogenic Pb can substantially reduce the mobility of U the alteration of uranyl minerals in most groundwaters. The earliest Pb-uranyl minerals to form in most U deposits undergoing oxidation have relatively low Pb:U ratios. Subsequent and continued interaction with groundwater leads to the formation of increasingly Pb-enriched uranyl minerals, such as curite or wolsendorfite. The continued interaction of such Pb-rich minerals with groundwater may help to further limit U migration by providing nucleation sites for late-stage alteration minerals. JF - Abstracts with Programs - Geological Society of America AU - Finch, Robert J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 134 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - alteration KW - oxidation KW - wolsendorfite KW - uranyl ion KW - lead KW - recrystallization KW - ground water KW - paragenesis KW - galena KW - nucleation KW - precipitation KW - metals KW - infiltration KW - oxides KW - curite KW - uranium KW - uraninite KW - sulfides KW - actinides KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52369263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+role+of+radiogenic+Pb+in+the+alteration+and+paragenesis+of+uranium+minerals&rft.au=Finch%2C+Robert+J%3BAnonymous&rft.aulast=Finch&rft.aufirst=Robert&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=134&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, 1999 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; alteration; curite; galena; ground water; infiltration; lead; metals; nucleation; oxidation; oxides; paragenesis; precipitation; recrystallization; sulfides; uraninite; uranium; uranyl ion; wolsendorfite ER - TY - JOUR T1 - Synthesis of Ce (super 4+) and Nd (super 3+) -bearing ianthinite; implications for the incorporation of Pu (super 4+) and Am (super 3+) into the alteration phases of spent nuclear fuel AN - 52369039; 2000-031098 JF - Abstracts with Programs - Geological Society of America AU - Kim, Cheol-Woon AU - Wronkiewicz, David J AU - Buck, Edgar C AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 135 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - alteration KW - isotopes KW - plutonium KW - characterization KW - mass spectra KW - solution KW - radioactive waste KW - cerium KW - radioactive isotopes KW - oxides KW - spectra KW - rare earths KW - Yucca Mountain KW - Nevada KW - ianthinite KW - oxidation KW - Nye County Nevada KW - hydroxides KW - metals KW - americium KW - cations KW - uranium KW - waste disposal KW - neodymium KW - actinides KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52369039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Synthesis+of+Ce+%28super+4%2B%29+and+Nd+%28super+3%2B%29+-bearing+ianthinite%3B+implications+for+the+incorporation+of+Pu+%28super+4%2B%29+and+Am+%28super+3%2B%29+into+the+alteration+phases+of+spent+nuclear+fuel&rft.au=Kim%2C+Cheol-Woon%3BWronkiewicz%2C+David+J%3BBuck%2C+Edgar+C%3BAnonymous&rft.aulast=Kim&rft.aufirst=Cheol-Woon&rft.date=1999-01-01&rft.volume=31&rft.issue=7&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, 1999 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; alteration; americium; cations; cerium; characterization; hydroxides; ianthinite; isotopes; mass spectra; metals; neodymium; Nevada; Nye County Nevada; oxidation; oxides; plutonium; radioactive isotopes; radioactive waste; rare earths; solution; spectra; United States; uranium; waste disposal; Yucca Mountain ER - TY - JOUR T1 - Alteration of uranium-rich microlite from Mozambique AN - 52368421; 2000-031101 AB - Microlite, a member of the pyrochlore group, is a strategically important Ta ore and occurs primarily in granitic pegmatites. It is a particularly characteristic phase in the old (approximately 600 Ma) lithium pegmatites of the Mozambique Belt in East Africa, where large euhedral microlite occurs in association with albite, spodumene and lithian mica. We have examined a sample from a strongly altered pegmatite at Mina Conco, Mozambique. Here, microlite exhibits a pronounced growth zoning, with a U-free core surrounded by a U-rich rim (UO (sub 2) up to 13 wt. %). The core exhibits a conjugate set of straight fractures which provided a pathway for a late-stage U-enriched pegmatitic fluid. The fluid interacted with the U-free microlite to produce a distinct U enrichment along the fractures and, simultaneously, led to the formation of the U-rich rim. The latter is characterized by a large number of irregular cracks which, as indicated by radiation damage microstructures observed by TEM, are the result of metamictization. Following the stage of U incorporation into microlite, the host rock was subjected to intense argillitic alteration, but there is no evidence of U loss from microlite. It appears, therefore, that microlite is not only able to scavenge U from a fluid at elevated temperatures but also to retain the element during low-temperature alteration. Viewed from a different perspective, these results help in assessing the long-term performance of pyrochlore-based nuclear waste forms. The latter are currently under development for the immobilization of excess weapons plutonium. Our investigation emphasizes the importance of natural analogues for evaluating the durability of waste form materials over geologic time spans. JF - Abstracts with Programs - Geological Society of America AU - Giere, Reto AU - Buck, Edgar C AU - Guggenheim, Richard AU - Mathys, Daniel AU - Reusser, Eric AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 135 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - alteration KW - microlite KW - pegmatite KW - igneous rocks KW - East Africa KW - granites KW - Mina Conco KW - crystal growth KW - tantalum ores KW - radioactive waste KW - fractures KW - pyrochlore KW - plutonic rocks KW - Mozambique KW - metamictization KW - metals KW - metal ores KW - Africa KW - uranium KW - Mozambique Belt KW - waste disposal KW - actinides KW - zoning KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52368421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Alteration+of+uranium-rich+microlite+from+Mozambique&rft.au=Giere%2C+Reto%3BBuck%2C+Edgar+C%3BGuggenheim%2C+Richard%3BMathys%2C+Daniel%3BReusser%2C+Eric%3BAnonymous&rft.aulast=Giere&rft.aufirst=Reto&rft.date=1999-01-01&rft.volume=31&rft.issue=7&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, 1999 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Africa; alteration; crystal growth; East Africa; fractures; granites; igneous rocks; metal ores; metals; metamictization; microlite; Mina Conco; Mozambique; Mozambique Belt; pegmatite; plutonic rocks; pyrochlore; radioactive waste; tantalum ores; uranium; waste disposal; zoning ER - TY - JOUR T1 - Developing integrated technical approaches to meet the ecosystem sustainability challenge; watershed, ground-water basin, and wetlands perspectives AN - 52345244; 2000-045164 AB - This paper presents the challenge, goals, and general approach for quantifying and measuring ecosystem sustainability, including human components, from a hydrologic system perspective. These integrated multidisciplinary approaches and tools are used to identify the key environmental functions and structures (physical and hydrobiogeochemical) at the wetlands, watershed, and ground-water basin scale that can be applied in ecosystem characterization and socioeconomic analysis. The main goal is to develop an integrative approach and model of the interactions of climate, geology, hydrology, terrestrial and aquatic biota, and socioeconomic activity that can be used as a management tool to make informed decisions about population growth, water use and land development within a hydrological system. The approach draws upon established methods, such as the ASTM Expedited Site Characterization (ESC) and the ASTM Conceptualization and Characterization of Ground-Water Systems (C&C), and established modeling codes, such as HSPF and MODFLOW. The benefits from this type of approach are: 1) improved understanding of the interactions among hydrologic, wetland and stream systems, and socioeconomic activities in watersheds or ground-water basins; 2) development of a unique GIS-based approach and tools for watersheds or ground-water basins undergoing urbanization that is rapid, cost-effective, and scientifically valid, and quantifies dynamic relationships among land use, hydrology, and wetland and stream ecosystems; 3) estimation of the opportunity costs of alternative hydrologic system policies in the affected human communities; and 4) development of Decision Support Systems, through local community input and involvement, to effectively integrate the use of the GIS-based approach and tools into the environmental planning and decision-making process for long-term watershed, ground-water basin, or wetlands management. JF - Abstracts with Programs - Geological Society of America AU - Kolm, Kenneth E AU - Glover, Kent C AU - Burton, Jacqueline C AU - Meyer, Joseph S AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 23 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - hydrology KW - HSPF KW - rivers and streams KW - characterization KW - watersheds KW - water management KW - MODFLOW KW - ecosystems KW - decision-making KW - biota KW - measurement KW - ground water KW - wetlands KW - quantitative analysis KW - planning KW - climate effects KW - policy KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52345244?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Developing+integrated+technical+approaches+to+meet+the+ecosystem+sustainability+challenge%3B+watershed%2C+ground-water+basin%2C+and+wetlands+perspectives&rft.au=Kolm%2C+Kenneth+E%3BGlover%2C+Kent+C%3BBurton%2C+Jacqueline+C%3BMeyer%2C+Joseph+S%3BAnonymous&rft.aulast=Kolm&rft.aufirst=Kenneth&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=23&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, 1999 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biota; characterization; climate effects; decision-making; ecosystems; ground water; HSPF; hydrology; measurement; MODFLOW; planning; policy; quantitative analysis; rivers and streams; water management; watersheds; wetlands ER - TY - JOUR T1 - Calcite growth kinetics; in situ observations of surface processes and relationships to chemical affinity-based rate laws AN - 52343665; 2000-045184 AB - Chemical affinity-based rate laws are widely used to quantify dissolution and growth kinetics. There are two uncertainties associated with them: 1) surface processes that control the overall growth rate; 2) dependence of growth mechanism upon supersaturation. We compare experimental evidence with fundamental growth theories to show where popular affinity-based rate expressions hold or break down. Using in situ Atomic Force Microscopy (AFM), we conducted calcite growth experiments to determine (1) the supersaturation (s) range where growth occurs only by spiral formation; (2) the critical supersaturation that initiates a surface nucleation mechanism; (3) step velocities, Vs, and the slopes of growth hillocks, p; (4) normal growth rates, Rm, for single spirals; and (5) dependence of Rm upon dislocation source structure. We find that, at lower values of s (0 to 0.8), growth is initiated solely by surface imperfections including screw dislocations. Thus, crystal defect-originated growth, in particular, spiral growth, is the manifested mechanism. When s >0.8, 2-D nucleation becomes increasingly important. Measurements of Rm for {104} faces grown by single spirals indicate a superlinear dependence of Rm upon chemical affinity. AFM observations demonstrate that growth kinetics is controlled by dislocation source structures in addition to supersaturation and the dominant growth mode is hillock formation initiated at complex dislocation sources. General surface process-based rate expressions were derived by analyzing the dependence of p upon dislocation source structures to reveal a complex relationship between Rm and chemical affinity. These expressions can be approximated by second order affinity-based rate laws only under special conditions: (1) growth proceeds only by the development of single-sourced, single spirals and (2) growth occurs at the very near-equilibrium conditions where spiral formation is the only operative mechanism. This suggests that chemical affinity-based rate laws obtained by measuring temporal changes in solution chemistry yield composite rates from different dislocation sources and do not generally give meaningful interpretations of growth mechanism. By combining direct observations with macroscopic methods, improved rate laws with greater predictive capabilities may be possible. JF - Abstracts with Programs - Geological Society of America AU - Teng, H Henry AU - Dove, Patricia M AU - De Yoreo, James J AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 28 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - processes KW - experimental studies KW - mechanism KW - rates KW - crystal growth KW - solution KW - calcite KW - atomic force microscopy data KW - nucleation KW - saturation KW - quantitative analysis KW - kinetics KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52343665?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Calcite+growth+kinetics%3B+in+situ+observations+of+surface+processes+and+relationships+to+chemical+affinity-based+rate+laws&rft.au=Teng%2C+H+Henry%3BDove%2C+Patricia+M%3BDe+Yoreo%2C+James+J%3BAnonymous&rft.aulast=Teng&rft.aufirst=H&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=28&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, 1999 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 - 2000-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; calcite; carbonates; crystal growth; experimental studies; kinetics; mechanism; nucleation; processes; quantitative analysis; rates; saturation; solution ER - TY - JOUR T1 - Heterogeneous accretion of the H chondrite parent body AN - 52325586; 2000-056904 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Wolf, Stephen F AU - Lipschutz, Michael E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 116 PB - American Chemical Society, Washington, DC VL - 218, Part 1 SN - 0065-7727, 0065-7727 KW - meteorites KW - volatiles KW - ordinary chondrites KW - stony meteorites KW - thermal properties KW - parent materials KW - H chondrites KW - trace elements KW - chondrites KW - chemical composition KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52325586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Heterogeneous+accretion+of+the+H+chondrite+parent+body&rft.au=Wolf%2C+Stephen+F%3BLipschutz%2C+Michael+E%3BAnonymous&rft.aulast=Wolf&rft.aufirst=Stephen&rft.date=1999-01-01&rft.volume=218%2C+Part+1&rft.issue=&rft.spage=116&rft.isbn=9841236852&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 218th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; chondrites; H chondrites; meteorites; ordinary chondrites; parent materials; stony meteorites; thermal properties; trace elements; volatiles ER - TY - JOUR T1 - The effect of deep-rooted hybrid poplars on the groundwater flow system at a phytoremediation site AN - 52273361; 2001-007011 AB - Phytoremediation is becoming a viable technology for remediating volatile organic compounds (VOCs) and other contaminants in groundwater and soil. Phreatophytes such as poplars transpire VOCs through their leaves during the growing season, metabolize VOCs in the rhizosphere through the biotic activity of fungi and bacteria growing symbiotically along the roots, and depress water levels in an aquifer by removal of groundwater through transpiration. One technique is the use of engineered systems of hybrid poplars with roots directed to relatively deep aquifers. In 1999, approximately 500 such poplars were planted in a groundwater remediation project at Argonne National Laboratory, near Chicago. Trees were planted in large-diameter boreholes drilled through approximately 30 ft of glacial tills and perched saturated zones to a contaminated sand and gravel unit. The boreholes were lined with plastic and filled with mixtures of topsoil, manure, and sand to constrain the developing roots downward. Groundwater modeling was performed to evaluate the anticipated effects of the trees on the groundwater flow system. Initially the modeling determined best estimates of input parameters and boundary conditions to provide a suitable match to pre-remedial conditions in steady-state and transient cases. Then the future effects of mature, deep-rooted hybrid poplars on the flow system were modeled, including transient seasonal effects. The modeling suggests that the mature trees will provide containment of groundwater from the upgradient source areas even during the trees' dormant winter periods, and groundwater will have a residence time of 5 to 17 months in the microbially active rhizosphere of the poplars. The results also suggest, however, that during the dry season, the water demand of the trees, combined with the decreased flux of water into the aquifer, may dewater portions of the aquifer and therefore stress portions of the plantation. JF - Abstracts with Programs - Geological Society of America AU - Quinn, John J AU - Moos, Lawrence P AU - Negri, M C AU - Wozniak, James B AU - Hinchman, Ray R AU - Gatliff, Ed G AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 100 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - soils KW - technology KW - pollution KW - effects KW - bioremediation KW - remediation KW - ground water KW - aquifers KW - models KW - volatiles KW - organic compounds KW - movement KW - volatile organic compounds KW - trees KW - seasonal variations KW - phytoremediation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52273361?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+effect+of+deep-rooted+hybrid+poplars+on+the+groundwater+flow+system+at+a+phytoremediation+site&rft.au=Quinn%2C+John+J%3BMoos%2C+Lawrence+P%3BNegri%2C+M+C%3BWozniak%2C+James+B%3BHinchman%2C+Ray+R%3BGatliff%2C+Ed+G%3BAnonymous&rft.aulast=Quinn&rft.aufirst=John&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=100&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, 1999 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 - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; bioremediation; effects; ground water; models; movement; organic compounds; phytoremediation; pollution; remediation; seasonal variations; soils; technology; trees; volatile organic compounds; volatiles ER - TY - JOUR T1 - Nitrogen and carbon isotopes as diagnostic indicators of methanotrophic activities in a landfill soil AN - 52260825; 2001-019062 AB - Land fill soil displayed a minima in delta 15N (+1.0 per mil) and delta (super 13) C (-33.8 per mil) at the same depth (9-16 cm) at which maximum methane consumption and nitrous oxide production occurred. The nitrogen isotope value reflects nitrogen fixation by type II methanotrophs. The delta (super 13) C value of 18 carbon fatty acids, diagnostic of type II methanotrophs, closely matched the delta (super 13) C value of organic carbon. The carbon and nitrogen isotopic evidence indicates that approximately 78% of the organic matter in this soil was derived from type II methanotrophs, which were also responsible for the consumption of methane and production of nitrous oxide. JF - Abstracts with Programs - Geological Society of America AU - Kinney, Chad A AU - Mandernack, Kevin W AU - Coleman, Dennis AU - Huang, Young-Song AU - Freeman, Katherine AU - Bogner, Jean AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 275 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - soils KW - N-15/N-14 KW - methane KW - fatty acids KW - isotopes KW - isotope ratios KW - landfills KW - C-13/C-12 KW - nitrous oxide KW - aliphatic hydrocarbons KW - alkanes KW - stable isotopes KW - nitrogen KW - organic compounds KW - organic acids KW - carbon KW - bacteria KW - hydrocarbons KW - waste disposal KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52260825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Nitrogen+and+carbon+isotopes+as+diagnostic+indicators+of+methanotrophic+activities+in+a+landfill+soil&rft.au=Kinney%2C+Chad+A%3BMandernack%2C+Kevin+W%3BColeman%2C+Dennis%3BHuang%2C+Young-Song%3BFreeman%2C+Katherine%3BBogner%2C+Jean%3BAnonymous&rft.aulast=Kinney&rft.aufirst=Chad&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=275&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, 1999 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 - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; bacteria; C-13/C-12; carbon; fatty acids; hydrocarbons; isotope ratios; isotopes; landfills; methane; N-15/N-14; nitrogen; nitrous oxide; organic acids; organic compounds; soils; stable isotopes; waste disposal ER - TY - JOUR T1 - Spectroscopic techniques applied to uranium in minerals AN - 52257471; 2001-020913 JF - Reviews in Mineralogy AU - Hanchar, John M A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 499 EP - 519 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - characterization KW - techniques KW - mineralogy KW - emission spectroscopy KW - luminescence KW - electron probe KW - metals KW - X-ray spectroscopy KW - X-ray analysis KW - particle-induced X-ray emission KW - optical spectroscopy KW - uranium KW - spectra KW - spectroscopy KW - actinides KW - optical methods KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52257471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Spectroscopic+techniques+applied+to+uranium+in+minerals&rft.au=Hanchar%2C+John+M&rft.aulast=Hanchar&rft.aufirst=John&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=499&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 71 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; characterization; electron probe; emission spectroscopy; luminescence; metals; mineralogy; optical methods; optical spectroscopy; particle-induced X-ray emission; spectra; spectroscopy; techniques; uranium; X-ray analysis; X-ray spectroscopy ER - TY - JOUR T1 - Radioactivity and the 20th century AN - 52257417; 2001-020903 JF - Reviews in Mineralogy AU - Ewing, Rodney C A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 1 EP - 21 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - dosimetry KW - historical geology KW - geologic hazards KW - medical geology KW - isotopes KW - radioactivity KW - biochemistry KW - radiation damage KW - power plants KW - mineralogy KW - remediation KW - radioactive waste KW - radioactive isotopes KW - nuclear energy KW - metals KW - discoveries KW - environmental geology KW - applications KW - uranium KW - waste disposal KW - geochemistry KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52257417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Radioactivity+and+the+20th+century&rft.au=Ewing%2C+Rodney+C&rft.aulast=Ewing&rft.aufirst=Rodney&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=1&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 73 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; applications; biochemistry; discoveries; dosimetry; environmental geology; geochemistry; geologic hazards; historical geology; isotopes; medical geology; metals; mineralogy; nuclear energy; power plants; radiation damage; radioactive isotopes; radioactive waste; radioactivity; remediation; uranium; waste disposal ER - TY - JOUR T1 - Uranium mineralogy and the geologic disposal of spent nuclear fuel AN - 52257084; 2001-020912 JF - Reviews in Mineralogy AU - Wronkiewicz, David J AU - Buck, Edgar A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 475 EP - 497 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - alteration KW - isotopes KW - waste disposal sites KW - unsaturated zone KW - influence KW - analysis KW - solution KW - radioactive waste KW - radioactive isotopes KW - environmental geology KW - chemical composition KW - geochemistry KW - corrosion KW - migration KW - secondary minerals KW - oxidation KW - radiation damage KW - effects KW - mineralogy KW - metals KW - natural analogs KW - uranium KW - waste disposal KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52257084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Uranium+mineralogy+and+the+geologic+disposal+of+spent+nuclear+fuel&rft.au=Wronkiewicz%2C+David+J%3BBuck%2C+Edgar&rft.aulast=Wronkiewicz&rft.aufirst=David&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=475&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 88 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; alteration; analysis; chemical composition; corrosion; effects; environmental geology; geochemistry; influence; isotopes; metals; migration; mineralogy; natural analogs; oxidation; radiation damage; radioactive isotopes; radioactive waste; secondary minerals; solution; unsaturated zone; uranium; waste disposal; waste disposal sites ER - TY - JOUR T1 - Environmental aqueous geochemistry of actinides AN - 52256906; 2001-020907 JF - Reviews in Mineralogy AU - Murphy, William M AU - Shock, Everett L A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 221 EP - 253 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - water KW - oxidation KW - mathematical geology KW - aqueous solutions KW - solution KW - research KW - equilibrium KW - temperature KW - inorganic materials KW - organic compounds KW - metals KW - future KW - americium KW - uranium KW - geochemistry KW - aquatic environment KW - actinides KW - pH KW - high temperature KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Environmental+aqueous+geochemistry+of+actinides&rft.au=Murphy%2C+William+M%3BShock%2C+Everett+L&rft.aulast=Murphy&rft.aufirst=William&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=221&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 119 N1 - PubXState - DC N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; americium; aquatic environment; aqueous solutions; equilibrium; future; geochemistry; high temperature; inorganic materials; mathematical geology; metals; organic compounds; oxidation; pH; research; solution; temperature; uranium; water ER - TY - JOUR T1 - Identification of selected uranium-bearing minerals and inorganic phases by X-ray powder diffraction AN - 52256816; 2001-020916 JF - Reviews in Mineralogy AU - Hill, Frances C A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 653 EP - 679 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - single-crystal method KW - metals KW - identification KW - diffractograms KW - X-ray analysis KW - uranium KW - powder method KW - geochemistry KW - actinides KW - X-ray diffraction analysis KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Identification+of+selected+uranium-bearing+minerals+and+inorganic+phases+by+X-ray+powder+diffraction&rft.au=Hill%2C+Frances+C&rft.aulast=Hill&rft.aufirst=Frances&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=653&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 207 N1 - PubXState - DC N1 - Document feature - illus. incl. 15 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; diffractograms; geochemistry; identification; metals; powder method; single-crystal method; uranium; X-ray analysis; X-ray diffraction analysis ER - TY - JOUR T1 - Uranium contamination in the subsurface; characterization and remediation AN - 52256770; 2001-020911 JF - Reviews in Mineralogy AU - Abdelouas, Abdessalam AU - Lutze, Werner AU - Nuttall, H Eric A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 433 EP - 473 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - United States KW - mining KW - geologic hazards KW - medical geology KW - techniques KW - Europe KW - environmental analysis KW - environmental effects KW - remediation KW - ground water KW - laboratory studies KW - mining geology KW - Central Europe KW - experimental studies KW - pollutants KW - geomicrobiology KW - pollution KW - bioremediation KW - new methods KW - case studies KW - Canada KW - metals KW - uranium KW - leaching KW - Germany KW - tailings KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256770?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Uranium+contamination+in+the+subsurface%3B+characterization+and+remediation&rft.au=Abdelouas%2C+Abdessalam%3BLutze%2C+Werner%3BNuttall%2C+H+Eric&rft.aulast=Abdelouas&rft.aufirst=Abdessalam&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=433&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 144 N1 - PubXState - DC N1 - Document feature - illus. incl. 9 tables, sect. N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; bioremediation; Canada; case studies; Central Europe; environmental analysis; environmental effects; Europe; experimental studies; geologic hazards; geomicrobiology; Germany; ground water; laboratory studies; leaching; medical geology; metals; mining; mining geology; new methods; pollutants; pollution; remediation; tailings; techniques; United States; uranium ER - TY - JOUR T1 - Systematics and paragenesis of uranium minerals AN - 52256738; 2001-020905 JF - Reviews in Mineralogy AU - Finch, Robert AU - Murakami, Takashi A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 91 EP - 179 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - silicates KW - alteration KW - U/Pb KW - solutions KW - rhabdophane KW - unit cell KW - tungstates KW - brannerite KW - titanite KW - ground water KW - vanadates KW - arsenates KW - orthosilicates KW - oxides KW - reduction KW - coffinite KW - thermodynamic properties KW - tellurites KW - chemical composition KW - geochemistry KW - zircon group KW - migration KW - tantalates KW - selenites KW - oxyhydroxides KW - oxidation KW - phosphates KW - paragenesis KW - nesosilicates KW - hydroxides KW - niobotantalates KW - columbite KW - precipitation KW - metals KW - titanite group KW - niobates KW - molybdates KW - classification KW - uranium KW - lattice parameters KW - dehydration KW - uraninite KW - carbonates KW - actinides KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256738?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Systematics+and+paragenesis+of+uranium+minerals&rft.au=Finch%2C+Robert%3BMurakami%2C+Takashi&rft.aulast=Finch&rft.aufirst=Robert&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=91&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 393 N1 - PubXState - DC N1 - Document feature - illus. incl. 20 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; alteration; arsenates; brannerite; carbonates; chemical composition; classification; coffinite; columbite; dehydration; geochemistry; ground water; hydroxides; lattice parameters; metals; migration; molybdates; nesosilicates; niobates; niobotantalates; orthosilicates; oxidation; oxides; oxyhydroxides; paragenesis; phosphates; precipitation; reduction; rhabdophane; selenites; silicates; solutions; tantalates; tellurites; thermodynamic properties; titanite; titanite group; tungstates; U/Pb; unit cell; uraninite; uranium; vanadates; zircon group ER - TY - JOUR T1 - The crystal chemistry of uranium AN - 52256330; 2001-020904 JF - Reviews in Mineralogy AU - Burns, Peter C A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 23 EP - 90 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - zircon group KW - silicates KW - anions KW - X-ray diffraction data KW - crystal structure KW - bonding KW - brannerite KW - variations KW - nesosilicates KW - polyhedra KW - metals KW - orthosilicates KW - oxides KW - cations KW - topology KW - valency KW - uranium KW - coffinite KW - crystallography KW - crystal chemistry KW - chemical composition KW - uraninite KW - actinides KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256330?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=The+crystal+chemistry+of+uranium&rft.au=Burns%2C+Peter+C&rft.aulast=Burns&rft.aufirst=Peter&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=23&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 114 N1 - PubXState - DC N1 - Document feature - illus. incl. 10 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; anions; bonding; brannerite; cations; chemical composition; coffinite; crystal chemistry; crystal structure; crystallography; metals; nesosilicates; orthosilicates; oxides; polyhedra; silicates; topology; uraninite; uranium; valency; variations; X-ray diffraction data; zircon group ER - TY - JOUR T1 - Stable isotope geochemistry of uranium deposits AN - 52256314; 2001-020906 JF - Reviews in Mineralogy AU - Fayek, Mostafa AU - Kyser, T Kurtis A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 181 EP - 220 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - United States KW - isotope fractionation KW - geologic thermometry KW - conversion KW - isotopes KW - fluid phase KW - solution KW - metasomatism KW - stable isotopes KW - temperature KW - ground water KW - water-rock interaction KW - carbon KW - hydrothermal alteration KW - Australia KW - kinetics KW - geochemistry KW - pH KW - water KW - migration KW - Australasia KW - physicochemical properties KW - connate waters KW - ore bodies KW - equilibrium KW - hydrothermal conditions KW - uranium ores KW - Canada KW - precipitation KW - brines KW - metal ores KW - sulfur KW - crystal chemistry KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52256314?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Stable+isotope+geochemistry+of+uranium+deposits&rft.au=Fayek%2C+Mostafa%3BKyser%2C+T+Kurtis&rft.aulast=Fayek&rft.aufirst=Mostafa&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=181&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 194 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables, sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - Australasia; Australia; brines; Canada; carbon; connate waters; conversion; crystal chemistry; equilibrium; fluid phase; geochemistry; geologic thermometry; ground water; hydrothermal alteration; hydrothermal conditions; isotope fractionation; isotopes; kinetics; metal ores; metasomatism; migration; ore bodies; pH; physicochemical properties; precipitation; solution; stable isotopes; sulfur; temperature; United States; uranium ores; water; water-rock interaction ER - TY - JOUR T1 - Geomicrobiology of uranium AN - 52255324; 2001-020910 JF - Reviews in Mineralogy AU - Suzuki, Yohey AU - Banfield, Jillian F A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 393 EP - 432 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - mineral deposits, genesis KW - metabolites KW - development KW - mechanism KW - bioavailability KW - polymerization KW - ions KW - remediation KW - ground water KW - toxicity KW - future KW - ecology KW - polymers KW - geochemistry KW - migration KW - metabolism KW - geomicrobiology KW - pollution KW - bioremediation KW - research KW - models KW - uranium ores KW - metals KW - classification KW - metal ores KW - uranium KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52255324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Geomicrobiology+of+uranium&rft.au=Suzuki%2C+Yohey%3BBanfield%2C+Jillian+F&rft.aulast=Suzuki&rft.aufirst=Yohey&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=393&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 246 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; bioavailability; bioremediation; classification; development; ecology; future; geochemistry; geomicrobiology; ground water; ions; mechanism; metabolism; metabolites; metal ores; metals; migration; mineral deposits, genesis; models; pollution; polymerization; polymers; remediation; research; toxicity; uranium; uranium ores ER - TY - JOUR T1 - Analytical methods for the determination of uranium in geological and environmental materials AN - 52255044; 2001-020915 JF - Reviews in Mineralogy AU - Wolf, Stephen F A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 623 EP - 651 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - methods KW - radioactivity KW - igneous rocks KW - mass spectra KW - techniques KW - solution KW - environmental analysis KW - gravity methods KW - sedimentary rocks KW - metamorphic rocks KW - colorimetry KW - spectra KW - ion exchange KW - geochemistry KW - chemical analysis KW - titration KW - geophysical methods KW - trace-element analyses KW - atomic absorption spectra KW - precipitation KW - metals KW - identification KW - uranium KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52255044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Analytical+methods+for+the+determination+of+uranium+in+geological+and+environmental+materials&rft.au=Wolf%2C+Stephen+F&rft.aulast=Wolf&rft.aufirst=Stephen&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=623&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 80 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; atomic absorption spectra; chemical analysis; colorimetry; environmental analysis; geochemistry; geophysical methods; gravity methods; identification; igneous rocks; ion exchange; mass spectra; metals; metamorphic rocks; methods; precipitation; radioactivity; sedimentary rocks; solution; spectra; techniques; titration; trace-element analyses; uranium ER - TY - JOUR T1 - Infrared spectroscopy and thermal analysis of the uranyl minerals AN - 52255006; 2001-020914 JF - Reviews in Mineralogy AU - Cejka, Jiri A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 521 EP - 622 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - silicates KW - hydrates KW - uranium oxides KW - bonding KW - tungstates KW - stretching KW - infrared spectra KW - ligands KW - vanadates KW - arsenates KW - alkalinity KW - spectra KW - tellurites KW - water KW - anions KW - sulfates KW - selenites KW - uranyl ion KW - phosphates KW - mineralogy KW - bending KW - molecular structure KW - thermal analysis KW - vibrational spectra KW - metals KW - molybdates KW - uranium KW - carbonates KW - actinides KW - minerals KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52255006?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Infrared+spectroscopy+and+thermal+analysis+of+the+uranyl+minerals&rft.au=Cejka%2C+Jiri&rft.aulast=Cejka&rft.aufirst=Jiri&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=521&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 439 N1 - PubXState - DC N1 - Document feature - illus. incl. 12 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; alkalinity; anions; arsenates; bending; bonding; carbonates; hydrates; infrared spectra; ligands; metals; mineralogy; minerals; molecular structure; molybdates; phosphates; selenites; silicates; spectra; stretching; sulfates; tellurites; thermal analysis; tungstates; uranium; uranium oxides; uranyl ion; vanadates; vibrational spectra; water ER - TY - JOUR T1 - Mineralogy and geochemistry of natural fission reactors in Gabon AN - 52252849; 2001-020909 JF - Reviews in Mineralogy AU - Janeczek, Janusz A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 321 EP - 392 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - clay KW - isotopes KW - plutonium KW - analysis KW - platinum group KW - Oklo KW - sediments KW - oxides KW - rare earths KW - geochemistry KW - fission KW - definition KW - clastic sediments KW - geophysical methods KW - electrical methods KW - Gabon KW - Central Africa KW - anomalies KW - phosphates KW - ore bodies KW - mineralogy KW - calcite KW - models KW - self-potential methods KW - uranium ores KW - galena KW - crandallite KW - metals KW - metal ores KW - Africa KW - uraninite KW - sulfides KW - carbonates KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52252849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Mineralogy+and+geochemistry+of+natural+fission+reactors+in+Gabon&rft.au=Janeczek%2C+Janusz&rft.aulast=Janeczek&rft.aufirst=Janusz&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=321&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - illus. incl. 13 tables, sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - actinides; Africa; analysis; anomalies; calcite; carbonates; Central Africa; clastic sediments; clay; crandallite; definition; electrical methods; fission; Gabon; galena; geochemistry; geophysical methods; isotopes; metal ores; metals; mineralogy; models; Oklo; ore bodies; oxides; phosphates; platinum group; plutonium; rare earths; sediments; self-potential methods; sulfides; uraninite; uranium ores ER - TY - JOUR T1 - Uranium ore deposits; products of the radioactive Earth AN - 52252789; 2001-020908 JF - Reviews in Mineralogy AU - Plant, Jane A AU - Simpson, Peter R AU - Smith, Barry AU - Windley, Brian F A2 - Burns, Peter C. A2 - Finch, Robert Y1 - 1999 PY - 1999 DA - 1999 SP - 255 EP - 319 PB - Mineralogical Society of America and Geochemical Society, Washington, DC VL - 38 SN - 0275-0279, 0275-0279 KW - mineral deposits, genesis KW - trondhjemite KW - radioactivity KW - igneous rocks KW - granites KW - enrichment KW - sandstone KW - production KW - mineral resources KW - black shale KW - sedimentary rocks KW - plutonic rocks KW - diorites KW - coal KW - metamorphic rocks KW - sediments KW - basins KW - lignite KW - applications KW - phosphate rocks KW - chemically precipitated rocks KW - breccia KW - sedimentation KW - ore bodies KW - pipes KW - felsic composition KW - veins KW - distribution KW - conglomerate KW - orogeny KW - uranium ores KW - intrusions KW - tonalite KW - classification KW - metal ores KW - clastic rocks KW - crust KW - 27A:Economic geology, geology of ore deposits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52252789?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=Uranium+ore+deposits%3B+products+of+the+radioactive+Earth&rft.au=Plant%2C+Jane+A%3BSimpson%2C+Peter+R%3BSmith%2C+Barry%3BWindley%2C+Brian+F&rft.aulast=Plant&rft.aufirst=Jane&rft.date=1999-01-01&rft.volume=38&rft.issue=&rft.spage=255&rft.isbn=0939950502&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 421 N1 - PubXState - DC N1 - Document feature - illus. incl. 10 tables, sects., geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - applications; basins; black shale; breccia; chemically precipitated rocks; classification; clastic rocks; coal; conglomerate; crust; diorites; distribution; enrichment; felsic composition; granites; igneous rocks; intrusions; lignite; metal ores; metamorphic rocks; mineral deposits, genesis; mineral resources; ore bodies; orogeny; phosphate rocks; pipes; plutonic rocks; production; radioactivity; sandstone; sedimentary rocks; sedimentation; sediments; tonalite; trondhjemite; uranium ores; veins ER - TY - JOUR T1 - Effect of organic compounds on calcite growth; determining foundations of biomineral formation AN - 52245229; 2001-027684 AB - Calcium carbonate precipitation is central to biomineralization processes in marine and freshwater environments by photosynthesizing microorganisms. Complex proteins and their amino acid residues are believed to play determinate roles in biomineralization phenomena but their effects on kinetics, thermodynamics, and growth morphology are not understood. Advances in our ability to unravel biologically-induced mineralization by microscopic in situ observation have rejuvenated interests in understanding how microbes and higher organisms synthesize minerals at very near-equilibrium conditions.This study quantifies the effect of amino acids and related organic compounds on step migration rates for the (104) calcite surface using in situ Fluid Cell AFM. L-aspartic and L-glutamic acids are abundant in natural biomineralizing systems while maleic, malonic, and L-alpha-aminobutyric acids were selected to probe mechanisms by which individual functional groups modify growth. Experiments were conducted using control and 0.01 molal organic-doped solutions, at pH = 8.5, IS = 0.1, and supersaturations = 0.6-1.2. Calcium and carbonate activity ratios were adjusted to approximately 1.0 for each solution. Measurements of step velocities show that glutamic acid acts as an overall inhibitor to single spiral growth. In contrast, L-alpha-aminobutyric acid, which lacks a carboxylic functional group, increased step velocities. All of the compounds affected growth morphology by changing and rounding the dominant step edge directions except L-alpha-aminobutyric acid. The extents of the rate enhancing/inhibiting effects were dependent upon supersaturation. These findings indicate the site-specific interactions of carboxyl and amine groups with the four types of kink sites found at calcite step edges. Our analysis suggests that unique growth geometries result from perturbations in microscopic kinetics and possibly thermodynamics. JF - Abstracts with Programs - Geological Society of America AU - Grantham, Meg C AU - Teng, H Henry AU - Davis, Kevin J AU - De Yoreo, James J AU - Dove, Patricia M AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 393 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - photosynthesis KW - solutions KW - crystal growth KW - organization KW - atomic force microscopy data KW - quantitative analysis KW - thermodynamic properties KW - kinetics KW - pH KW - processes KW - biomineralization KW - experimental studies KW - in situ KW - photochemistry KW - effects KW - fresh-water environment KW - calcite KW - organic compounds KW - saturation KW - precipitation KW - marine environment KW - proteins KW - carbonates KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52245229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Effect+of+organic+compounds+on+calcite+growth%3B+determining+foundations+of+biomineral+formation&rft.au=Grantham%2C+Meg+C%3BTeng%2C+H+Henry%3BDavis%2C+Kevin+J%3BDe+Yoreo%2C+James+J%3BDove%2C+Patricia+M%3BAnonymous&rft.aulast=Grantham&rft.aufirst=Meg&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=393&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, 1999 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 - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; biomineralization; calcite; carbonates; crystal growth; effects; experimental studies; fresh-water environment; in situ; kinetics; marine environment; microorganisms; organic compounds; organization; pH; photochemistry; photosynthesis; precipitation; processes; proteins; quantitative analysis; saturation; solutions; thermodynamic properties ER - TY - JOUR T1 - Microbial degradation of chlorinated aliphatic hydrocarbons; field investigations using stable carbon and chlorine isotopes AN - 52244048; 2001-027677 AB - The application of stable-isotope-ratio measurements of C and Cl to investigate the environmental behavior and fate of anthropogenic chlorinated aliphatic hydrocarbons (CAHs) is a relatively new approach. We have developed new methods for the sampling and isotopic analysis of CAHs in air and water and applied these to measure isotopic fractionation of C and Cl during vapor-liquid partitioning and microbial degradation in liquid cultures in the laboratory. We have also performed several field studies of C and Cl isotopes in contaminated aquifers in which either natural or engineered degradation of CAHs has occurred. Two field sites, both contaminated with trichloroethene (TCE) but undergoing different remediation regimes are shown here to demonstrate the application of C and Cl isotopes in field investigations. Multiple sampling events over the course of one year at a former manufacturing facility followed isotopic changes as the site underwent extensive remediation including steam injection, extraction and sub-surface heating. Complex plume composition with multiple organic carbon sources (TCE, hydraulic fluid, paint-shop solvents, petroleum products, and sewage) complicated the interpretation of any site-wide trends. C and Cl isotope ratios indicated processes (evaporation, degradation, and dissolution) consistent with known well histories (proximity to organics, steam injection, heating, etc). In some wells the observed 13-C and 37-Cl enrichments, more than +3 per mil relative to the pure phase DNAPL source, were indicative of significant TCE degradation with time. In contrast, at a manufacturing facility where no engineered remediation has been started, evidence for biodegradation and multiple TCE sources was identified. TCE was the predominant source of both organic carbon and chlorine within the plume. The enrichments of both 13-C and 37-Cl within one arm of the plume indicate biodegradation, while other wells indicate that evaporation is the predominant mechanism of natural attenuation, with 37-Cl enrichments up to +4 per mil relative to source wells. JF - Abstracts with Programs - Geological Society of America AU - Heraty, Linnea J AU - Sturchio, Neil C AU - Holt, Ben D AU - Abrajano, Teofilo A AU - Huang, Lin AU - Smith, Greg AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 391 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - chlorinated hydrocarbons KW - degradation KW - contaminant plumes KW - isotopes KW - halogens KW - aliphatic hydrocarbons KW - dense nonaqueous phase liquids KW - solution KW - stable isotopes KW - steam injection KW - partitioning KW - sampling KW - carbon KW - halogenated hydrocarbons KW - geochemistry KW - water KW - chlorine KW - biodegradation KW - isotope ratios KW - human activity KW - C-13/C-12 KW - pollution KW - nonaqueous phase liquids KW - organic compounds KW - evaporation KW - Cl-37/Cl-35 KW - hydrocarbons KW - C-13 KW - air KW - trichloroethylene KW - field studies KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52244048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Microbial+degradation+of+chlorinated+aliphatic+hydrocarbons%3B+field+investigations+using+stable+carbon+and+chlorine+isotopes&rft.au=Heraty%2C+Linnea+J%3BSturchio%2C+Neil+C%3BHolt%2C+Ben+D%3BAbrajano%2C+Teofilo+A%3BHuang%2C+Lin%3BSmith%2C+Greg%3BAnonymous&rft.aulast=Heraty&rft.aufirst=Linnea&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=391&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, 1999 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 - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - air; aliphatic hydrocarbons; biodegradation; C-13; C-13/C-12; carbon; chlorinated hydrocarbons; chlorine; Cl-37/Cl-35; contaminant plumes; degradation; dense nonaqueous phase liquids; evaporation; field studies; geochemistry; halogenated hydrocarbons; halogens; human activity; hydrocarbons; isotope ratios; isotopes; nonaqueous phase liquids; organic compounds; partitioning; pollution; sampling; solution; stable isotopes; steam injection; trichloroethylene; water ER - TY - JOUR T1 - Redox cycling of arsenic in geothermally-influenced surface waters AN - 52239427; 2001-035728 AB - The occurrence and redox speciation of arsenic was examined in two related, yet contrasting, systems in the eastern Sierra Nevada, CA, Hot Creek and Lake Crowley. Elevated arsenic concentrations occur in Hot Creek as a result of geothermal inputs; arsenic is introduced primarily as As(III) but is rapidly oxidized to As(V). Microbial processes were found to contribute significantly to the observed As(III) oxidation and pure cultures of arsenite-oxidizing bacteria have been isolated from Hot Creek. Total arsenic behaves conservatively in Hot Creek and is diluted by flow from the Owens River, a tributary of Lake Crowley. Redox cycling of arsenic in Lake Crowley is strongly influenced by seasonal patterns of stratification and aperiodic withdrawals of deep water; Lake Crowley is a reservoir in the Los Angeles Aqueduct system. In contrast to other freshwater systems studied previously and perhaps because of the large inputs of phosphorus (also of geothermal origin) to Lake Crowley, uptake and transformation of arsenic by phytoplankton do not appear to be important processes in the arsenic cycle in this system. JF - Abstracts with Programs - Geological Society of America AU - Hering, Janet G AU - Wilkie, Jennifer A AU - Kneebone, Penelope E AU - Salmassi, Tina AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 448 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Sierra Nevada KW - processes KW - phytoplankton KW - oxidation KW - surface water KW - arsenic KW - pollution KW - plankton KW - Owens River KW - geochemical cycle KW - nutrients KW - California KW - metals KW - bacteria KW - Lake Crowley KW - Hot Creek KW - Eh KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52239427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Redox+cycling+of+arsenic+in+geothermally-influenced+surface+waters&rft.au=Hering%2C+Janet+G%3BWilkie%2C+Jennifer+A%3BKneebone%2C+Penelope+E%3BSalmassi%2C+Tina%3BAnonymous&rft.aulast=Hering&rft.aufirst=Janet&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=448&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, 1999 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 - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - arsenic; bacteria; California; chemical fractionation; Eh; geochemical cycle; Hot Creek; Lake Crowley; metals; nutrients; Owens River; oxidation; phytoplankton; plankton; pollution; processes; Sierra Nevada; surface water; United States ER - TY - JOUR T1 - Wavelet analysis and the recognition of hierarchy in Phanerozoic biodiversity patterns; the syllables of recorded time series AN - 52232285; 2001-037277 AB - It has been argued over the past two decades that evolutionary and ecological systems should be viewed as hierarchical systems. With the notable exception of the identification of three evolutionary faunas by Sepkoski, nearly all attempts to describe this hierarchy have been qualitative, focusing on the perceived relationships among different ecological or taxonomic entities. In recent years, however, new techniques have been developed that should allow the quantitative identification and characterization of units with discrete time and space boundaries. Previous lacunarity analyses of generic level biodiversity time series compiled by Sepkoski suggested that they are consistent with multiple scale, hierarchical, and multiplicative processes. We have further analyzed these sequences using wavelet analysis. Wavelets decompose a time series into scaled components, whose fit to a local region of the series is determined. Wavelet analysis, unlike more traditional methods of time series analysis, can thus detect multiscaled discontinuities and local features within a series. We extracted and analyzed the component hierarchy in diversity, origination and extinction time series using discrete wavelet transforms. Several different wavelet models were used, including Haar, Morlet, Daubechies, Symlets, Meyer, and biorthogonal. Both normal discrete and discrete packet strategies were followed, progressing from one through six levels. The most useful results were obtained from a biorthogonal wavelet at three and four levels of detail. The magnitude of the components at different scales further supports the existence of a quantifiable superimposed hierarchy in the fossil record. JF - Abstracts with Programs - Geological Society of America AU - Plotnick, Roy E AU - Vogt, Michael AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 SP - 337 PB - Geological Society of America (GSA), Boulder, CO VL - 31 IS - 7 SN - 0016-7592, 0016-7592 KW - models KW - Phanerozoic KW - biodiversity KW - wavelets KW - characterization KW - extinction KW - biologic evolution KW - fossil record KW - paleoecology KW - 08:General paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52232285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Wavelet+analysis+and+the+recognition+of+hierarchy+in+Phanerozoic+biodiversity+patterns%3B+the+syllables+of+recorded+time+series&rft.au=Plotnick%2C+Roy+E%3BVogt%2C+Michael%3BAnonymous&rft.aulast=Plotnick&rft.aufirst=Roy&rft.date=1999-01-01&rft.volume=31&rft.issue=7&rft.spage=337&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, 1999 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 - 2001-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biodiversity; biologic evolution; characterization; extinction; fossil record; models; paleoecology; Phanerozoic; wavelets ER - TY - JOUR T1 - Molybdenum isotopic composition of single silicon carbide grains from supernovae AN - 52227081; 2001-042507 AB - Measurement of Mo isotopic compositions of single presolar SiC grains from supernovae show a signature of r-process nucleosynthesis, but a different one from that responsible for solar system Mo. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Pellin, M J AU - Davis, A M AU - Lewis, R S AU - Amari, Sachiko AU - Clayton, R N AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1969 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - experimental studies KW - stony meteorites KW - Mo-92 KW - ion probe data KW - isotopes KW - Mo-94 KW - supernovas KW - mass spectra KW - cosmochemistry KW - carbonaceous chondrites KW - carbides KW - Murchison Meteorite KW - meteorites KW - stars KW - molybdenum KW - metals KW - alloys KW - spectra KW - CM chondrites KW - chondrites KW - geochemistry KW - SEM data KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52227081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Molybdenum+isotopic+composition+of+single+silicon+carbide+grains+from+supernovae&rft.au=Pellin%2C+M+J%3BDavis%2C+A+M%3BLewis%2C+R+S%3BAmari%2C+Sachiko%3BClayton%2C+R+N%3BAnonymous&rft.aulast=Pellin&rft.aufirst=M&rft.date=1999-01-01&rft.volume=30&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/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 13 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alloys; carbides; carbonaceous chondrites; chondrites; CM chondrites; cosmochemistry; experimental studies; geochemistry; ion probe data; isotopes; mass spectra; metals; meteorites; Mo-92; Mo-94; molybdenum; Murchison Meteorite; SEM data; spectra; stars; stony meteorites; supernovas ER - TY - JOUR T1 - Light and heavy element isotopic compositions of mainstream SiC grains AN - 52193157; 2001-063100 AB - We report Mo isotopic compositions of mainstream presolar SiC grains with measured C, N and Si isotopic composition and examine correlations among isotopic systems and their implications for nucleosynthetic processes. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Davis, A M AU - Pellin, M J AU - Lewis, R S AU - Amari, S AU - Clayton, R N AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1976 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - stony meteorites KW - isotopes KW - carbides KW - silicon KW - stable isotopes KW - nitrogen KW - Murchison Meteorite KW - meteorites KW - Si-29 KW - molybdenum KW - carbon KW - alloys KW - chondrites KW - geochemistry KW - experimental studies KW - N-15/N-14 KW - Mo-92 KW - Si-30 KW - isotope ratios KW - C-13/C-12 KW - cosmochemistry KW - carbonaceous chondrites KW - sample preparation KW - grains KW - metals KW - CM chondrites KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52193157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Light+and+heavy+element+isotopic+compositions+of+mainstream+SiC+grains&rft.au=Davis%2C+A+M%3BPellin%2C+M+J%3BLewis%2C+R+S%3BAmari%2C+S%3BClayton%2C+R+N%3BAnonymous&rft.aulast=Davis&rft.aufirst=A&rft.date=1999-01-01&rft.volume=30&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/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alloys; C-13/C-12; carbides; carbon; carbonaceous chondrites; chondrites; CM chondrites; cosmochemistry; experimental studies; geochemistry; grains; isotope ratios; isotopes; metals; meteorites; Mo-92; molybdenum; Murchison Meteorite; N-15/N-14; nitrogen; sample preparation; Si-29; Si-30; silicon; stable isotopes; stony meteorites ER - TY - JOUR T1 - Degradation of tetraphenylboron at hydrated smectite surfaces studied by time resolved IR and X-ray adsorption spectroscopies AN - 51926495; 2003-075397 AB - The surface catalyzed redox reactivity of an organoboron probe molecule (tetraphenylboron, or TPB) with fully hydrated clay mineral surfaces is described wherein one or both of two degradation pathways can occur. Attenuated total reflectance Fourier transform infrared (ATR-IR) spectroscopy can quantitatively measure, in situ, both acid hydrolytic and oxidative degradation of TPB as controlled by the exchange cation identity and the structural octahedral Fe content of the clay mineral. Oxidation of TPB at smectite surfaces is directly attributable to octahedral Fe(III) in the clay structure. The concomitant reduction of Fe(III) during TPB oxidation can be analytically measured by X-ray absorption near edge structure (XANES) spectroscopy. The resultant distortion of the clay mineral structure during the reduction of structural Fe could be probed directly by extended X-ray absorption fine structure (EXAFS) spectroscopy. The lack of evidence for clay mineral dissolution during the reaction with TPB permits defining the clay as a catalyst. The combination of these three in situ spectroscopic techniques to measure the reaction in real time, provides powerful insight into the reactivity of clay mineral surfaces. JF - ACS Symposium Series AU - Hunter, D B AU - Gates, W P AU - Bertsch, P M AU - Kemner, K M A2 - Sparks, Donald L. A2 - Grundl, Timothy J. Y1 - 1999 PY - 1999 DA - 1999 SP - 282 EP - 300 PB - American Chemical Society, Washington, DC VL - 715 SN - 0097-6156, 0097-6156 KW - silicates KW - degradation KW - oxidation KW - XAFS spectra KW - smectite KW - mineral-water interface KW - solution KW - X-ray spectra KW - infrared spectra KW - clay minerals KW - XANES spectra KW - molecular structure KW - chemical reactions KW - sheet silicates KW - boron KW - spectra KW - montmorillonite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51926495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+Symposium+Series&rft.atitle=Degradation+of+tetraphenylboron+at+hydrated+smectite+surfaces+studied+by+time+resolved+IR+and+X-ray+adsorption+spectroscopies&rft.au=Hunter%2C+D+B%3BGates%2C+W+P%3BBertsch%2C+P+M%3BKemner%2C+K+M&rft.aulast=Hunter&rft.aufirst=D&rft.date=1999-01-01&rft.volume=715&rft.issue=&rft.spage=282&rft.isbn=0841235937&rft.btitle=&rft.title=ACS+Symposium+Series&rft.issn=00976156&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Mineral-water interfacial reactions; kinetics and mechanisms N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 54 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - ACSMC8 N1 - SubjectsTermNotLitGenreText - boron; chemical reactions; clay minerals; degradation; infrared spectra; mineral-water interface; molecular structure; montmorillonite; oxidation; sheet silicates; silicates; smectite; solution; spectra; X-ray spectra; XAFS spectra; XANES spectra ER - TY - JOUR T1 - X-ray spectroscopy investigations of lead(II) distributions within biofilms formed on metal-oxide surfaces AN - 51603465; 2006-032495 JF - LPI Contribution AU - Templeton, A S AU - Trainor, T P AU - Ostergren, J D AU - Traina, S J AU - Spormann, A M AU - Sutton, S R AU - Newville, M AU - Brown, G E, Jr AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 293 EP - 294 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - partitioning KW - sorption KW - experimental studies KW - metals KW - biofilms KW - oxides KW - lead KW - spectra KW - geochemistry KW - X-ray spectra KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51603465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=X-ray+spectroscopy+investigations+of+lead%28II%29+distributions+within+biofilms+formed+on+metal-oxide+surfaces&rft.au=Templeton%2C+A+S%3BTrainor%2C+T+P%3BOstergren%2C+J+D%3BTraina%2C+S+J%3BSpormann%2C+A+M%3BSutton%2C+S+R%3BNewville%2C+M%3BBrown%2C+G+E%2C+Jr%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Templeton&rft.aufirst=A&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth 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 - Document feature - illus. N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - biofilms; experimental studies; geochemistry; lead; metals; oxides; partitioning; sorption; spectra; X-ray spectra ER - TY - JOUR T1 - Copper biomineralization; toward quantifying the effects of bacteria on precipitation AN - 51603001; 2006-032107 JF - LPI Contribution AU - Fowle, D A AU - Fein, J B AU - Kemner, K M AU - Bunker, B A AU - Kelly, S AU - Boyanov, M AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 88 EP - 89 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - biomineralization KW - experimental studies KW - quantitative analysis KW - copper KW - precipitation KW - metals KW - bacteria KW - effects KW - adsorption KW - geochemistry KW - pH KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51603001?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Copper+biomineralization%3B+toward+quantifying+the+effects+of+bacteria+on+precipitation&rft.au=Fowle%2C+D+A%3BFein%2C+J+B%3BKemner%2C+K+M%3BBunker%2C+B+A%3BKelly%2C+S%3BBoyanov%2C+M%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Fowle&rft.aufirst=D&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - adsorption; bacteria; biomineralization; copper; effects; experimental studies; geochemistry; metals; pH; precipitation; quantitative analysis ER - TY - JOUR T1 - Chlorine-isotopic ratios of semivolatile chlorinated organic compounds AN - 51602207; 2006-032393 JF - LPI Contribution AU - Reddy, C M AU - Heraty, L J AU - Holt, B D AU - Sturchio, N C AU - Eglinton, T I AU - Maruya, K A AU - Lake, J L AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 241 EP - 242 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - United States KW - chlorine KW - chlorinated hydrocarbons KW - semivolatile organic compounds KW - isotopes KW - pollutants KW - isotope ratios KW - biochemistry KW - halogens KW - pollution KW - stable isotopes KW - case studies KW - Turtle River estuary KW - volatiles KW - organic compounds KW - New Bedford Harbor KW - Massachusetts KW - Cl-37/Cl-35 KW - volatile organic compounds KW - halogenated hydrocarbons KW - geochemistry KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51602207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chlorine-isotopic+ratios+of+semivolatile+chlorinated+organic+compounds&rft.au=Reddy%2C+C+M%3BHeraty%2C+L+J%3BHolt%2C+B+D%3BSturchio%2C+N+C%3BEglinton%2C+T+I%3BMaruya%2C+K+A%3BLake%2C+J+L%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Reddy&rft.aufirst=C&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - 1 table N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - biochemistry; case studies; chlorinated hydrocarbons; chlorine; Cl-37/Cl-35; geochemistry; halogenated hydrocarbons; halogens; isotope ratios; isotopes; Massachusetts; New Bedford Harbor; organic compounds; pollutants; pollution; semivolatile organic compounds; stable isotopes; Turtle River estuary; United States; volatile organic compounds; volatiles ER - TY - JOUR T1 - Probing the electrical double-layer structure at the rutile-water interface with X-ray standing waves AN - 51601556; 2006-032099 JF - LPI Contribution AU - Fenter, P AU - Cheng, L AU - Rihs, S AU - Geissbuehler, P AU - Bedzyk, M J AU - Sturchio, N C AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 84 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - models KW - partitioning KW - experimental studies KW - X-ray data KW - rutile KW - oxides KW - mineral-water interface KW - ions KW - geochemistry KW - pH KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51601556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Probing+the+electrical+double-layer+structure+at+the+rutile-water+interface+with+X-ray+standing+waves&rft.au=Fenter%2C+P%3BCheng%2C+L%3BRihs%2C+S%3BGeissbuehler%2C+P%3BBedzyk%2C+M+J%3BSturchio%2C+N+C%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Fenter&rft.aufirst=P&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 6 N1 - PubXState - TX N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - experimental studies; geochemistry; ions; mineral-water interface; models; oxides; partitioning; pH; rutile; X-ray data ER - TY - JOUR T1 - Stable isotopic investigations of the chlorinated aliphatic hydrocarbons AN - 51601233; 2006-032483 JF - LPI Contribution AU - Sturchio, N C AU - Heraty, L J AU - Holt, B D AU - Huang, L AU - Abrajano, T A AU - Agee, C AU - Bowers, T AU - Bowring, S A AU - Frey, F A AU - Hayes, J M AU - Holland, H AU - Jacobsen, S B AU - McDonough, W F AU - Murray, R AU - Rudnick, R L AU - Shimizu, N AU - Schrag, D P AU - Van Baalen, M Y1 - 1999 PY - 1999 DA - 1999 SP - 287 EP - 288 PB - Lunar and Planetary Institute, Houston, TX SN - 0161-5297, 0161-5297 KW - chlorinated hydrocarbons KW - isotopes KW - halogens KW - aliphatic hydrocarbons KW - tetrachloroethylene KW - stable isotopes KW - partitioning KW - carbon KW - halogenated hydrocarbons KW - geochemistry KW - processes KW - chlorine KW - methane KW - pollutants KW - isotope ratios KW - oxidation KW - C-13/C-12 KW - pollution KW - alkanes KW - organic compounds KW - D/H KW - hydrogen KW - Cl-37/Cl-35 KW - hydrocarbons KW - chemical fractionation KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51601233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stable+isotopic+investigations+of+the+chlorinated+aliphatic+hydrocarbons&rft.au=Sturchio%2C+N+C%3BHeraty%2C+L+J%3BHolt%2C+B+D%3BHuang%2C+L%3BAbrajano%2C+T+A%3BAgee%2C+C%3BBowers%2C+T%3BBowring%2C+S+A%3BFrey%2C+F+A%3BHayes%2C+J+M%3BHolland%2C+H%3BJacobsen%2C+S+B%3BMcDonough%2C+W+F%3BMurray%2C+R%3BRudnick%2C+R+L%3BShimizu%2C+N%3BSchrag%2C+D+P%3BVan+Baalen%2C+M&rft.aulast=Sturchio&rft.aufirst=N&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ninth annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 5 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Paper copy and CD-ROM N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; C-13/C-12; carbon; chemical fractionation; chlorinated hydrocarbons; chlorine; Cl-37/Cl-35; D/H; geochemistry; halogenated hydrocarbons; halogens; hydrocarbons; hydrogen; isotope ratios; isotopes; methane; organic compounds; oxidation; partitioning; pollutants; pollution; processes; stable isotopes; tetrachloroethylene ER - TY - JOUR T1 - Dating mantle metasomatism; U-Pb geochronology of zircons in cratonic mantle xenoliths from Montana and Tanzania AN - 51211521; 2000-043931 AB - Zircons from upper mantle xenoliths carried in alkaline volcanic pipes that erupted on the margins of the Wyoming and Tanzanian cratons are associated with a particular style of metasomatism characterized by the precipitation of phlogopite+ or -other high field strength element and large-ion lithophile element-rich phases (e.g., Mg-ilmenite, rutile, monazite, apatite). Large, euhedral zircons from a phlogopite vein in a refractory harzburgite xenolith from the Labait tuff cone, Tanzania, are late Pleistocene in age (400+ or -200 Ka) and crystallized from East African rift-related magmas that infiltrated ancient, cratonic lithosphere. In the Highwood Mountains, Montana, zircons in two glimmerite veins cutting a harzburgite xenolith show a more complicated history, with concordant U-Pb ages ranging from 1.7 to 1.9 Ga. Xenocrystic plagioclase in one of these veins points to an inherited component derived from the crust. Granitic melt inclusions in zircons from this same vein, coupled with a relatively narrow range of Th/U ratios in the older zircons like-wise suggest an inherited (crustal) zircon population. The crystallization of this vein is best dated from analyses of a zircon rim that incorporated a phlogopite crystal, yielding an age of 1817+ or -32 Ma, similar to previous U-Pb determinations of the age of monazite from the same vein (1779+ or -2 Ma, Carlson and Irving, 1994). A second harzburgite xenolith contains zircons with a crystallization age of 1784+ or -20 Ma. Together these results suggest the metasomatism occurred at ca. 1800 Ma, coincident with the formation of the Great Falls tectonic zone. The xeno-crystic plagioclase and zircons, low epsilon (sub Nd) and high (super 87) Sr/ (super 86) Sr at 1.8 Ga, coupled with the crust-like REE patterns of these xenoliths suggest the melt responsible for this metasomatism was derived from older continental crust. JF - Proceedings of the International Kimberlite Conference AU - Rudnick, R L AU - Ireland, T R AU - Gehrels, G AU - Irving, A J AU - Chesley, J T AU - Hanchar, J M A2 - Gurney, John J. A2 - Gurney, James L. A2 - Pascoe, Michelle D. A2 - Richardson, Stephen H. Y1 - 1999 PY - 1999 DA - 1999 SP - 728 EP - 735 PB - [publisher varies], [location varies] VL - 7, Vol. 2 SN - 0197-4769, 0197-4769 KW - silicates KW - Tanzania KW - U/Pb KW - East Africa KW - mass spectra KW - harzburgite KW - plutonic rocks KW - mineral composition KW - mica group KW - inclusions KW - basalts KW - orthosilicates KW - absolute age KW - high-field-strength elements KW - zircon group KW - fluor-phlogopite KW - upper mantle KW - Quaternary KW - zircon KW - cathodoluminescence KW - ultramafics KW - mineral inclusions KW - intrusions KW - SHRIMP data KW - peridotites KW - Pleistocene KW - Africa KW - gabbros KW - phlogopite KW - cones KW - United States KW - alkali basalts KW - volcanic rocks KW - upper Precambrian KW - ion probe data KW - Paleoproterozoic KW - igneous rocks KW - mantle KW - ultramafic composition KW - metasomatism KW - lithophile elements KW - upper Pleistocene KW - Cenozoic KW - dates KW - tuff KW - spectra KW - rare earths KW - chemical composition KW - xenoliths KW - Precambrian KW - Labait KW - Proterozoic KW - Highwood Mountains KW - pipes KW - Montana KW - nesosilicates KW - pyroclastics KW - glimmerites KW - kimberlite KW - metals KW - crystallization KW - sheet silicates KW - 03:Geochronology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51211521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+International+Kimberlite+Conference&rft.atitle=Dating+mantle+metasomatism%3B+U-Pb+geochronology+of+zircons+in+cratonic+mantle+xenoliths+from+Montana+and+Tanzania&rft.au=Rudnick%2C+R+L%3BIreland%2C+T+R%3BGehrels%2C+G%3BIrving%2C+A+J%3BChesley%2C+J+T%3BHanchar%2C+J+M&rft.aulast=Rudnick&rft.aufirst=R&rft.date=1999-01-01&rft.volume=7%2C+Vol.+2&rft.issue=&rft.spage=728&rft.isbn=0799218650&rft.btitle=&rft.title=Proceedings+of+the+International+Kimberlite+Conference&rft.issn=01974769&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - VIIth international kimberlite conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; Africa; alkali basalts; basalts; cathodoluminescence; Cenozoic; chemical composition; cones; crystallization; dates; East Africa; fluor-phlogopite; gabbros; glimmerites; harzburgite; high-field-strength elements; Highwood Mountains; igneous rocks; inclusions; intrusions; ion probe data; kimberlite; Labait; lithophile elements; mantle; mass spectra; metals; metasomatism; mica group; mineral composition; mineral inclusions; Montana; nesosilicates; orthosilicates; Paleoproterozoic; peridotites; phlogopite; pipes; Pleistocene; plutonic rocks; Precambrian; Proterozoic; pyroclastics; Quaternary; rare earths; sheet silicates; SHRIMP data; silicates; spectra; Tanzania; tuff; U/Pb; ultramafic composition; ultramafics; United States; upper mantle; upper Pleistocene; upper Precambrian; volcanic rocks; xenoliths; zircon; zircon group ER - TY - RPRT T1 - Disposal of NORM-contaminated oil field wastes in salt caverns AN - 50613338; 2008-114271 JF - Disposal of NORM-contaminated oil field wastes in salt caverns AU - Veil, John A AU - Smith, Karen P AU - Tomasko, David AU - Elcock, Deborah AU - Blunt, Deborah L AU - Williams, Gustavious P Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 71 VL - DOE/BC/W-109-ENG-38-4 KW - limestone KW - hazardous waste KW - salt domes KW - Ogallala Aquifer KW - regulations KW - Th-232 KW - New Mexico KW - fluid dynamics KW - waste management KW - sedimentary rocks KW - Ra-228 KW - Louisiana KW - radium KW - pollutants KW - Mississippi KW - Texas KW - migration of elements KW - Dockum Aquifer KW - Rn-222 KW - Delaware Basin KW - organic compounds KW - brines KW - hydrocarbons KW - cap rocks KW - uranium KW - waste disposal KW - carbonate rocks KW - public health KW - United States KW - aquifer vulnerability KW - isotopes KW - landfills KW - radon KW - ground water KW - carcinogens KW - salt caverns KW - radioactive isotopes KW - noble gases KW - NORM KW - diapirs KW - concentration KW - alkaline earth metals KW - injection KW - pollution KW - potassium chloride KW - petroleum products KW - Gulf Coastal Plain KW - naturally occurring radioactive materials KW - caverns KW - aquifers KW - Oklahoma KW - safety KW - metals KW - thorium KW - risk assessment KW - U-238 KW - actinides KW - underground disposal KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50613338?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=Veil%2C+John+A%3BSmith%2C+Karen+P%3BTomasko%2C+David%3BElcock%2C+Deborah%3BBlunt%2C+Deborah+L%3BWilliams%2C+Gustavious+P&rft.aulast=Veil&rft.aufirst=John&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Disposal+of+NORM-contaminated+oil+field+wastes+in+salt+caverns&rft.title=Disposal+of+NORM-contaminated+oil+field+wastes+in+salt+caverns&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2008-01-01 N1 - Number of references - 66 N1 - Availability - U. S. Department of Energy, Assistant Secretary for Fossil Energy, United States N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2014-09-18 ER - TY - BOOK T1 - U. S. laws and regulations AN - 50513232; 2009-023948 JF - The handbook of groundwater engineering AU - Veil, John A AU - Elock, Debroah AU - Ranek, Nancy L AU - Green, David R A2 - Delleur, Jacques W. Y1 - 1999 PY - 1999 DA - 1999 PB - CRC Press SN - 0849326982 KW - United States KW - hazardous waste KW - Resource Conservation and Recovery Act KW - isotopes KW - underground storage tanks KW - regulations KW - landfills KW - government agencies KW - Safe Drinking Water Act KW - drinking water KW - remediation KW - ground water KW - Ra-226 KW - radioactive isotopes KW - Ra-228 KW - water treatment KW - Comprehensive Environmental Response, Compensation, and Liability Act KW - municipal waste KW - protection KW - alkaline earth metals KW - monitoring KW - radium KW - pollutants KW - legislation KW - U. S. Environmental Protection Agency KW - pollution KW - wellhead protection KW - metals KW - Clean Water Act 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/50513232?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=Veil%2C+John+A%3BElock%2C+Debroah%3BRanek%2C+Nancy+L%3BGreen%2C+David+R&rft.aulast=Veil&rft.aufirst=John&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0849326982&rft.btitle=U.+S.+laws+and+regulations&rft.title=U.+S.+laws+and+regulations&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 - Document feature - 6 tables N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Uptake of natural and anthropogenic actinides in vegetable crops grown on a contaminated lake bed AN - 50315170; 2000-025183 JF - Journal of Environmental Radioactivity AU - Whicker, F W AU - Hinton, T G AU - Orlandini, K A AU - Clark, S B Y1 - 1999 PY - 1999 DA - 1999 SP - 1 EP - 12 PB - Elsevier, Barking VL - 45 IS - 1 SN - 0265-931X, 0265-931X KW - United States KW - fertilizers KW - South Carolina KW - isotopes KW - plutonium KW - Pu-239 KW - Th-232 KW - bioavailability KW - environmental analysis KW - radioactive waste KW - bioaccumulation KW - waste management KW - radioactive isotopes KW - soils KW - concentration KW - Plantae KW - pollution KW - ponds KW - metals KW - lacustrine environment KW - thorium KW - risk assessment KW - uranium KW - waste disposal KW - U-238 KW - Savannah River Site KW - actinides KW - Pu-240 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50315170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Uptake+of+natural+and+anthropogenic+actinides+in+vegetable+crops+grown+on+a+contaminated+lake+bed&rft.au=Whicker%2C+F+W%3BHinton%2C+T+G%3BOrlandini%2C+K+A%3BClark%2C+S+B&rft.aulast=Whicker&rft.aufirst=F&rft.date=1999-01-01&rft.volume=45&rft.issue=1&rft.spage=1&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 - 2000-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; bioaccumulation; bioavailability; concentration; environmental analysis; fertilizers; isotopes; lacustrine environment; metals; Plantae; plutonium; pollution; ponds; Pu-239; Pu-240; radioactive isotopes; radioactive waste; risk assessment; Savannah River Site; soils; South Carolina; Th-232; thorium; U-238; United States; uranium; waste disposal; waste management ER - TY - JOUR T1 - Contents of highly labile trace elements in H4-6 chondrite falls are not affected by post-accretionary heating AN - 50314888; 2001-037513 AB - Contents of volatile trace elements in H4-6 chondrites were established during nebular condensation and accretion and the most thermally labile of these were unaffected by metamorphism of their parent bodies, shock heating or close solar approach. JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Wolf, S F AU - Lipschutz, M E AU - Anonymous Y1 - 1999 PY - 1999 DA - 1999 EP - abstr. no. 1110 PB - Lunar and Planetary Science Conference, Houston, TX VL - 30 KW - ordinary chondrites KW - stony meteorites KW - isotopes KW - parent bodies KW - statistical analysis KW - H chondrites KW - He-4 KW - thermal history KW - stable isotopes KW - solar nebula KW - meteorites KW - multivariate analysis KW - volatile elements KW - noble gases KW - heating KW - helium KW - trace elements KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50314888?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Contents+of+highly+labile+trace+elements+in+H4-6+chondrite+falls+are+not+affected+by+post-accretionary+heating&rft.au=Wolf%2C+S+F%3BLipschutz%2C+M+E%3BAnonymous&rft.aulast=Wolf&rft.aufirst=S&rft.date=1999-01-01&rft.volume=30&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/ LA - English DB - GeoRef N1 - Conference title - Thirtieth lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2001-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - chondrites; H chondrites; He-4; heating; helium; isotopes; meteorites; multivariate analysis; noble gases; ordinary chondrites; parent bodies; solar nebula; stable isotopes; statistical analysis; stony meteorites; thermal history; trace elements; volatile elements ER - TY - JOUR T1 - Risk analyses for disposing nonhazardous oil field wastes in salt caverns AN - 50231996; 2009-081362 JF - DOE/BC/W AU - Elcock, D AU - Tomasko, D AU - Veil, J AU - Caudle, D Y1 - 1999/01// PY - 1999 DA - January 1999 SP - 88 PB - U. S. DOE Office of Fossil Energy, National Petroleum Technology Office, Argonne Lab., Tulsa, OK KW - United States KW - hazardous waste KW - aquifer vulnerability KW - water quality KW - salt domes KW - site exploration KW - lead KW - hydrogeology KW - New Mexico KW - preferential flow KW - fluid dynamics KW - oil and gas fields KW - ground water KW - carcinogens KW - toxicity KW - cadmium KW - leaky aquifers KW - saline composition KW - heavy metals KW - pollutants KW - arsenic KW - pollution KW - Texas KW - petroleum products KW - Gulf Coastal Plain KW - benzene KW - caverns KW - aquifers KW - organic compounds KW - cracks KW - liquid waste KW - metals KW - hydrocarbons KW - shallow aquifers KW - waste disposal KW - underground disposal KW - permeability KW - aromatic hydrocarbons KW - public health KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50231996?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=Elcock%2C+D%3BTomasko%2C+D%3BVeil%2C+J%3BCaudle%2C+D&rft.aulast=Elcock&rft.aufirst=D&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Risk+analyses+for+disposing+nonhazardous+oil+field+wastes+in+salt+caverns&rft.title=Risk+analyses+for+disposing+nonhazardous+oil+field+wastes+in+salt+caverns&rft.issn=&rft_id=info:doi/ L2 - http://www.osti.gov/bridge/servlets/purl/3006-5XRXrS/webviewable/3006.PDF LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 75 N1 - PubXState - OK N1 - Document feature - illus. incl. 18 tables N1 - Last updated - 2012-06-07 N1 - CODEN - #06875 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; aromatic hydrocarbons; arsenic; benzene; cadmium; carcinogens; caverns; cracks; fluid dynamics; ground water; Gulf Coastal Plain; hazardous waste; heavy metals; hydrocarbons; hydrogeology; lead; leaky aquifers; liquid waste; metals; New Mexico; oil and gas fields; organic compounds; permeability; petroleum products; pollutants; pollution; preferential flow; public health; saline composition; salt domes; shallow aquifers; site exploration; Texas; toxicity; underground disposal; United States; waste disposal; water quality ER - TY - JOUR T1 - Compacts: Unitary solutions to environmental problems having multiple sources and masters AN - 20088392; 4600175 AB - Federal facilities' proximity to highly valued natural resource systems, such as the Columbia River and the Savannah River, are sometimes targeted as causing the degradation of the resource and therefore responsible for remediating the resource area. The role these federal facilities played in possibly contaminating water bodies should not be minimized unduly, nor should their role in remediation and long-term management of residual contamination. Ignoring other sources of water-body degradation, however, can result in short-sighted and single-focused remediation responses that, by their nature, will probably be ineffective. The task of remediating and managing water bodies requires broad-based assessments of the full nature and extent of the degradation, the contributors to it, and the preferred short- and long-term remedies. That task is complicated enough but becomes more complex when agencies from several states as well as federal agencies exert jurisdictional control over the water body. Although this article focuses on the Columbia River Basin, the concepts presented could apply to other water bodies shared by several states and degraded by multiple users. What is needed to restore and manage these degraded water bodies is a compact - a legislatively created, institutionalized relationship of the entities with interests in the protection and sustainable development of the water body. JF - Federal Facilities Environmental Journal AU - Hocking, E K AD - Environmental Policy Analysis Section, Environmental Assessment Division, Argonne National Laboratory Y1 - 1999 PY - 1999 DA - 1999 SP - 123 EP - 132 VL - 10 IS - 2 SN - 1048-4078, 1048-4078 KW - USA, Columbia R. KW - compacts KW - Sustainability Science Abstracts; Pollution Abstracts KW - Pollution clean-up KW - Water resources KW - Sustainable development KW - Natural resources KW - Remediation KW - Environmental restoration KW - Environment management KW - Government agencies 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/20088392?accountid=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=Federal+Facilities+Environmental+Journal&rft.atitle=Compacts%3A+Unitary+solutions+to+environmental+problems+having+multiple+sources+and+masters&rft.au=Hocking%2C+E+K&rft.aulast=Hocking&rft.aufirst=E&rft.date=1999-01-01&rft.volume=10&rft.issue=2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Federal+Facilities+Environmental+Journal&rft.issn=10484078&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Pollution clean-up; Natural resources; Remediation; Sustainable development; Environmental restoration; Water resources; Environment management; Government agencies ER - TY - JOUR T1 - Use of Contiguity on the Chromosome to Predict Functional Coupling AN - 19616572; 8720602 AB - The availability of a growing number of completely sequenced genomes opens new opportunities for understanding of complex biological systems. Success of genome-based biology will, to a large extent, depend on the development of new approaches and tools for efficient comparative analysis of the genomes and their organization. We have developed a technique for detecting possible functional coupling between genes based on detection of potential operons. The approach involves computation of "pairs of close bidirectional best hits", which are pairs of genes that apparently occur within operons in multiple genomes. Using these pairs, one can compose evidence (based on the number of distinct genomes and the phylogenetic distance between the orthologous pairs) that a pair of genes is potentially functionally coupled. The technique has revealed a surprisingly rich and apparently accurate set of functionally coupled genes. The approach depends on the use of a relatively large number of genomes, and the amount of detected coupling grows dramatically as the number of genomes increases. JF - In Silico Biology AU - Overbeek, Ross AU - Fonstein, Michael AU - D'Souza, Mark AU - Pusch, Gordon D AU - Maltsev, Natalia AD - Mathematics and Computer Science Division, Argonne National Laboratory, IL 60439, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 93 EP - 108 PB - IOS Press, Nieuwe Hemweg 6B VL - 1 IS - 2 SN - 1386-6338, 1386-6338 KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts KW - microbial genomes KW - operons KW - gene function identification KW - genetic sequence analysis KW - comparative analysis KW - Genomes KW - Phylogeny KW - Chromosomes KW - Operons KW - G 07730:Development & Cell Cycle KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/19616572?accountid=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=In+Silico+Biology&rft.atitle=Use+of+Contiguity+on+the+Chromosome+to+Predict+Functional+Coupling&rft.au=Overbeek%2C+Ross%3BFonstein%2C+Michael%3BD%27Souza%2C+Mark%3BPusch%2C+Gordon+D%3BMaltsev%2C+Natalia&rft.aulast=Overbeek&rft.aufirst=Ross&rft.date=1999-01-01&rft.volume=1&rft.issue=2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=In+Silico+Biology&rft.issn=13866338&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 - Phylogeny; Genomes; Chromosomes; Operons ER - TY - BOOK T1 - Using AVHRR and SeaWiFS to analyze a major sediment resuspension event in Lake Michigan AN - 18575528; 5317911 AB - During early March 1998, a major spring storm caused a widespread near-shore sediment resuspension event in southern Lake Michigan. One result of this event was a spectacular eddy feature, thought to represent high concentrations of suspended sediment, that was observed off the eastern shore of the lake north of South Haven, Michigan, on March 12. Remnants of this feature could be detected with visible imagery across the lake weeks later. We have used AVHRR visible, near-infrared, and thermal data, as well as SeaWiFS visible data, to examine temporal changes in southern Lake Michigan associated with the spring sediment resuspension event. We attempted to track the movement and evolution of the disturbance fields by calculating both temporal and spectral changes in successive registered images of the lake. The results suggest that the SeaWiFS images might be useful for qualitative estimation of temporal changes in the particle size distribution of the suspended material. JF - IAGLR '99. International Association for Great Lakes Research: Great Lakes, Great Science, Great Cities. Program and Abstracts. AU - Lesht, B M AU - Leshkevich, G A Y1 - 1999 PY - 1999 DA - 1999 EP - 69 PB - International Association for Great Lakes Research, 2205 Commonwealth Boulevard Ann Arbor MI 48105 USA, [URL:http://iaglr.org/] KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Freshwater KW - SW 5040:Data acquisition KW - Q2 02171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18575528?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=Lesht%2C+B+M%3BLeshkevich%2C+G+A&rft.aulast=Lesht&rft.aufirst=B&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=A&rft.isbn=&rft.btitle=Using+AVHRR+and+SeaWiFS+to+analyze+a+major+sediment+resuspension+event+in+Lake+Michigan&rft.title=Using+AVHRR+and+SeaWiFS+to+analyze+a+major+sediment+resuspension+event+in+Lake+Michigan&rft.issn=&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 - BOOK T1 - In situ observations of sediment resuspension in a non-depositional region of Southern Lake Michigan during the 1998 "plume" event AN - 18568060; 5317910 AB - Previous observations of near-bottom conditions and sediment resuspension in Lake Michigan have concentrated on areas of high sediment deposition in the southeastern part of the lake and on Indiana Shoals in the southwestern part. No previous observations have been made in the western areas of the lake adjacent to the Wisconsin bluffs, primarily because these waters were considered to be non-depositional and thus limited in the amount of resuspendable sediment available for transport. During 1998, the first EEGLE field year, we used an instrumented tripod to make measurements intended to test the hypothesis that the recurrent winter-spring resuspension event (misnamed "plume") includes new material eroded from the Wisconsin near-shore. The results show that the local sediment, a sandy cohesive clay, is indeed resuspended in response to the combined action of currents and surface waves. Net horizontal sediment flux in April was almost directly parallel to the shore and toward the south. In November, however, the net horizontal sediment flux was onshore, perhaps representing the temporary storage of a more easily resuspendable pool of sediment. JF - IAGLR '99. International Association for Great Lakes Research: Great Lakes, Great Science, Great Cities. Program and Abstracts. AU - Lesht, B M Y1 - 1999 PY - 1999 DA - 1999 EP - 68 PB - International Association for Great Lakes Research, 2205 Commonwealth Boulevard Ann Arbor MI 48105 USA, [URL:http://iaglr.org/] KW - North America, Michigan L. KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Freshwater KW - SW 0870:Erosion and sedimentation KW - Q2 02171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/18568060?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=Lesht%2C+B+M&rft.aulast=Lesht&rft.aufirst=B&rft.date=1999-01-01&rft.volume=&rft.issue=&rft.spage=A&rft.isbn=&rft.btitle=In+situ+observations+of+sediment+resuspension+in+a+non-depositional+region+of+Southern+Lake+Michigan+during+the+1998+%22plume%22+event&rft.title=In+situ+observations+of+sediment+resuspension+in+a+non-depositional+region+of+Southern+Lake+Michigan+during+the+1998+%22plume%22+event&rft.issn=&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 - Isotopic fractionation of carbon and chlorine by microbial degradation of dichloromethane AN - 17687266; 4816654 AB - The contribution of biological degradation towards the isotopic fractionation of chlorinated aliphatic hydrocarbons was investigated via microbial culture experiments. The isotopic fractionation of carbon and chlorine was determined during aerobic degradation of dichloromethane by MC8b, a gram-negative methylotrophic bacterium. Estimated values of isotopic fractionation were 0.9576 plus or minus 0.0015 for carbon and 0.9962 plus or minus 0.0003 for chlorine. The carbon isotope effect was about twice that resulting from the microbial oxidation of methane. Similar studies conducted for a variety of chlorinated aliphatic hydrocarbons (CAH) would contribute towards the characterization and remediation of CAH-contaminated sites. JF - Organic Geochemistry AU - Heraty, L J AU - Fuller, ME AU - Huang, L AU - Abrajano, T AU - Sturchio, N C AD - Argonne National Laboratory, Ill. Y1 - 1999 PY - 1999 DA - 1999 SP - 793 EP - 799 VL - 30 IS - 8A SN - 0146-6380, 0146-6380 KW - 0003 KW - Cah KW - Methylene chloride KW - Towards KW - Aqualine Abstracts KW - Chlorinated organic compounds KW - Micro-organisms KW - Bacteria KW - Isotopes KW - Culture KW - Aerobic conditions KW - Determination KW - Chlorine KW - Methylotrophs KW - Decomposition KW - USA KW - Methane (see also Digester gas, Sludge gas) KW - Carbons KW - Oxidation KW - Remediation KW - Gram-negative organisms KW - AQ 00001:Water Resources and Supplies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17687266?accountid=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=Organic+Geochemistry&rft.atitle=Isotopic+fractionation+of+carbon+and+chlorine+by+microbial+degradation+of+dichloromethane&rft.au=Heraty%2C+L+J%3BFuller%2C+ME%3BHuang%2C+L%3BAbrajano%2C+T%3BSturchio%2C+N+C&rft.aulast=Heraty&rft.aufirst=L&rft.date=1999-01-01&rft.volume=30&rft.issue=8A&rft.spage=793&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Chlorinated organic compounds; Bacteria; Micro-organisms; Culture; Isotopes; Aerobic conditions; Determination; Chlorine; Methylotrophs; Decomposition; Methane (see also Digester gas, Sludge gas); Remediation; Oxidation; Carbons; Gram-negative organisms; USA ER - TY - JOUR T1 - Radiotoxicity of plutonium in NTA-degrading Chelatobacter heintzii cell suspensions AN - 17459639; 4667621 AB - The radiotoxicity of plutonium in NTA-degrading Chelatobacter heintzii cell suspensions was investigated as part of a more general study to establish the key interactions between actinide-organic complexes and microorganisms in the subsurface. The radiation tolerance of C. heintzii, based on super(60)Co gamma irradiation experiments, was 165 plus or minus 30 Gy. No bacteria survived irradiation doses greater than 500 Gy. In the presence of plutonium, where alpha particle decay was the primary source of ionizing radiation, the observed toxicity was predominantly radiolytic rather than chemical. This was evident by the greater effect of activity, rather than concentration, on the toxicity noted. Bioassociation of plutonium with C. heintzii was postulated to be an important and necessary step in the observed loss of cell viability since this was the best way to account for the observed death rate. The radiotoxicity of plutonium towards bacteria is a potentially important consideration in the bioremediation of sites contaminated with radionuclide-organic mixtures and the bioprocessing of nuclear waste. JF - Biodegradation AU - Reed, D T AU - Vojta, Y AU - Quinn, J W AU - Richmann, M K AD - Chemical Technology Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, reedd@cmt.anl.gov Y1 - 1999 PY - 1999 DA - 1999 SP - 251 EP - 260 VL - 10 IS - 4 SN - 0923-9820, 0923-9820 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Cell suspensions KW - Plutonium KW - Biodegradation KW - Radiation KW - Chelatobacter heintzii KW - A 01016:Microbial degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17459639?accountid=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=Biodegradation&rft.atitle=Radiotoxicity+of+plutonium+in+NTA-degrading+Chelatobacter+heintzii+cell+suspensions&rft.au=Reed%2C+D+T%3BVojta%2C+Y%3BQuinn%2C+J+W%3BRichmann%2C+M+K&rft.aulast=Reed&rft.aufirst=D&rft.date=1999-01-01&rft.volume=10&rft.issue=4&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Biodegradation&rft.issn=09239820&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 - Chelatobacter heintzii; Biodegradation; Cell suspensions; Plutonium; Radiation ER - TY - JOUR T1 - Trash, ash, and the phoenix: A fifth anniversary review of the Supreme Court's City of Chicago waste-to-energy combustion ash decision AN - 17440969; 4651552 AB - In 1994, the U.S. Supreme Court held that ash generated by waste-to-energy (WTE) facilities was not exempt from Subtitle C hazardous waste management regulations under the Resource Conservation and Recovery Act (RCRA). As a result of City of Chicago v. Environmental Defense Fund, Inc., WTE installations are required to test their combustion ash and determine whether it is hazardous. The WTE industry and the municipalities utilizing WTE technologies initially feared that if significant amounts of their ash tested hazardous, the costs and liabilities associated with RCRA Subtitle C hazardous waste management requirements would pose a serious threat to the continued viability of the WTE concept. In this article, the author presents a review of the WTE industry in the five years following the decision, and finds that the specter of the decline of WTE has not materialized. JF - Boston College Environmental Affairs Law Review AU - Puder, M G AD - Argonne National Laboratory, Argonne, IL, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 473 EP - 518 VL - 26 IS - 3 SN - 0190-7034, 0190-7034 KW - USA KW - Pollution Abstracts KW - Ash KW - Energy recovery KW - Materials recovery KW - Recycling KW - Liability KW - Waste management KW - Government regulations KW - Litigation KW - Hazardous wastes KW - RCRA KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17440969?accountid=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=Boston+College+Environmental+Affairs+Law+Review&rft.atitle=Trash%2C+ash%2C+and+the+phoenix%3A+A+fifth+anniversary+review+of+the+Supreme+Court%27s+City+of+Chicago+waste-to-energy+combustion+ash+decision&rft.au=Puder%2C+M+G&rft.aulast=Puder&rft.aufirst=M&rft.date=1999-01-01&rft.volume=26&rft.issue=3&rft.spage=473&rft.isbn=&rft.btitle=&rft.title=Boston+College+Environmental+Affairs+Law+Review&rft.issn=01907034&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 - Liability; Litigation; RCRA; Hazardous wastes; Waste management; Recycling; Materials recovery; Ash; Energy recovery; Government regulations ER - TY - JOUR T1 - Partnering with Nondefense Stakeholders to Improve Environmental Policy and Explosives Safety Standards for Munitions--A Case Study AN - 17429772; 4653051 AB - The authors describe how effective partnering among Department of Defense (DOD) representatives, state and tribal agencies, and stakeholders from environmental advocacy groups and the public at large can improve DOD policies and standards, and simultaneously further environmental protection goals. The process of shaping the Department of Defense Explosives Safety Board (DDESB) standards and the DOD's Final Munitions Rule Implementation Policy serves as a case study for the benefits of mutual openness, knowledge, and trust among regulators, the regulated community, and other interested parties. For DOD, this approach also reflects a continuing trend away from the old culture of closed doors and sovereign immunity carve-outs to a new era of open dialogue and improved environmental stewardship. JF - Federal Facilities Environmental Journal AU - Cornelius, KA AU - Puder, M G AU - Sims, E AU - McFerrin, D AD - Argonne National Laboratory Y1 - 1999 PY - 1999 DA - 1999 SP - 37 EP - 51 VL - 10 IS - 3 SN - 1048-4078, 1048-4078 KW - DOD KW - munitions KW - Pollution Abstracts KW - Safety KW - Federal policies KW - Standards KW - Explosives KW - Environmental protection KW - P 9000:ENVIRONMENTAL ACTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17429772?accountid=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=Federal+Facilities+Environmental+Journal&rft.atitle=Partnering+with+Nondefense+Stakeholders+to+Improve+Environmental+Policy+and+Explosives+Safety+Standards+for+Munitions--A+Case+Study&rft.au=Cornelius%2C+KA%3BPuder%2C+M+G%3BSims%2C+E%3BMcFerrin%2C+D&rft.aulast=Cornelius&rft.aufirst=KA&rft.date=1999-01-01&rft.volume=10&rft.issue=3&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Federal+Facilities+Environmental+Journal&rft.issn=10484078&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 - Federal policies; Safety; Standards; Environmental protection; Explosives ER - TY - JOUR T1 - A Comparison of NEXRAD WSR-88D Radar Estimates of Rain Accumulation with Gauge Measurements for High- and Low-Reflectivity Horizontal Gradient Precipitation Events AN - 17412488; 4639231 AB - Radar-estimated rainfall amounts from the NEXRAD Weather Surveillance Radar precipitation accumulation algorithm were compared with measurements from numerous rain gauges (1639 radar versus gauge comparisons). Storm total rain accumulations from 43 rain events from 10 radar sites were analyzed. These rain events were stratified into two precipitation types: 1) high-reflectivity horizontal gradient storms and 2) low-reflectivity horizontal gradient events. Overall, the radar slightly overestimated rainfall accumulations for high-reflectivity gradient cases and significantly underestimated accumulations for low-reflectivity gradient cases. Varying degrees of range effects were observed for these two types of precipitation. For high-reflectivity gradient cases, the radar underestimated rainfall at the nearest ranges, overestimated at the middle ranges, and had fairly close agreements at the farthest ranges. A much stronger range bias was evident for low-reflectivity gradient cases. The radar underestimated rainfall by at least a factor of 2 in the nearest and farthest ranges, and to a somewhat lesser extent at midranges. JF - Journal of Atmospheric and Oceanic Technology AU - Klazura, GE AU - Thomale, J M AU - Kelly, D S AU - Jendrowski, P AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 1842 EP - 1850 VL - 16 IS - 11 SN - 0739-0572, 0739-0572 KW - NEXRAD WSR-88D KW - Water Resources Abstracts KW - Performance Evaluation KW - Comparison Studies KW - Rain Gages KW - Estimating KW - Rainfall KW - Radar KW - Algorithms KW - Precipitation KW - Accumulation KW - SW 5040:Data acquisition KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17412488?accountid=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+Atmospheric+and+Oceanic+Technology&rft.atitle=A+Comparison+of+NEXRAD+WSR-88D+Radar+Estimates+of+Rain+Accumulation+with+Gauge+Measurements+for+High-+and+Low-Reflectivity+Horizontal+Gradient+Precipitation+Events&rft.au=Klazura%2C+GE%3BThomale%2C+J+M%3BKelly%2C+D+S%3BJendrowski%2C+P&rft.aulast=Klazura&rft.aufirst=GE&rft.date=1999-01-01&rft.volume=16&rft.issue=11&rft.spage=1842&rft.isbn=&rft.btitle=&rft.title=Journal+of+Atmospheric+and+Oceanic+Technology&rft.issn=07390572&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 - Comparison Studies; Radar; Rainfall; Accumulation; Precipitation; Estimating; Rain Gages; Algorithms; Performance Evaluation ER - TY - JOUR T1 - Design Screening Tools for Passive Funnel and Gate Systems AN - 17230347; 4504565 AB - The funnel and gate remediation concept represents a promising, yet relatively under-developed, technology for the passive control and in situ remediation of contaminated ground water. Effective design and implementation of such a system may, however, prove difficult under conditions of large or unpredictable variations in contaminant migration or ground water flow. Numerical modeling of two-dimensional ground water flow has been used to predict the hydraulic performance of passive, straight, or winged funnel and gate configurations over a range of hydrogeologic and ambient ground water flow conditions. The results of these analyses were used to construct generic correlation diagrams relating upstream capture zone or gate throughput to the barrier, gate, and aquifer characteristics. These diagrams serve as useful screening tools to (1) quantitatively estimate the capture zone of predetermined funnel and gate configurations, or (2) develop preliminary funnel and gate designs that will yield a desired capture zone, independent of aquifer characteristics. JF - Ground Water Monitoring and Remediation AU - Sedivy, R A AU - Shafer, J M AU - Bilbrey, L C AD - Applied Geosciences and Environmental Management Section, Environmental Research Division, Argonne National Laboratory (9700 S. Cass Ave., Argonne, IL 60439), USA Y1 - 1999 PY - 1999 DA - 1999 SP - 125 EP - 133 VL - 19 IS - 1 SN - 1069-3629, 1069-3629 KW - funnel and gate method KW - Pollution Abstracts; Water Resources Abstracts KW - Design criteria KW - Groundwater movement KW - Water treatment KW - Water pollution treatment KW - Remediation KW - Geohydrology KW - Groundwater pollution KW - Technology KW - P 2000:FRESHWATER POLLUTION KW - SW 3070:Water quality control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17230347?accountid=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=Ground+Water+Monitoring+and+Remediation&rft.atitle=Design+Screening+Tools+for+Passive+Funnel+and+Gate+Systems&rft.au=Sedivy%2C+R+A%3BShafer%2C+J+M%3BBilbrey%2C+L+C&rft.aulast=Sedivy&rft.aufirst=R&rft.date=1999-01-01&rft.volume=19&rft.issue=1&rft.spage=125&rft.isbn=&rft.btitle=&rft.title=Ground+Water+Monitoring+and+Remediation&rft.issn=10693629&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Water treatment; Water pollution treatment; Remediation; Groundwater pollution; Technology; Design criteria; Groundwater movement; Geohydrology ER - TY - JOUR T1 - A novel waste form for disposal of spent-nuclear-fuel reprocessing waste: A vitrifiable cement AN - 16129831; 4577470 AB - A cement capable of being hot isostatically pressed into a glass ceramic has been proposed as the waste form for spent-nuclear-fuel reprocessing wastes at the Idaho National Engineering and Environmental Laboratory (INEEL). This intermediate cement, with a composition based on that of common glasses, has been designed and tested. The cement formulations included mixed INEEL wastes, blast furnace slag, reactive silica, and INEEL soil or vermiculite, which were activated with potassium or sodium hydroxide. Following autoclave processing, the cements were characterized. X-ray diffraction analysis revealed three notable crystalline phases: quartz, calcite, and fluorite. Results of compressive strength testing ranged from 1452 to 4163 psi, exceeding the U.S. Nuclear Regulatory Commission (NRC)-suggested standard of >500 psi. From American National Standards Institute/American Nuclear Society 16.1-1986 leach testing, effective diffusivities for Cs were determined to be on the order of 10 super(-11) to 10 super(-10) cm super(2)/s and for Sr were 10 super(-12) cm super(2)/s, which are four orders of magnitude less than diffusivities in some other radwaste materials. Average leach indices (LI) were 9.6 and 11.9 for Cs and Sr, respectively, meeting the NRC standard of LI > 6. The 28-day Materials Characterization Center-1 leach testing resulted in normalized elemental mass losses between 0.63 and 28 g/(m super(2) times day) for Cs and between 0.34 and 0.70 g/(m super(2) times day) for Sr. Strontium mass losses meet the <1 g/(m super(2) times day) industry-accepted standard while Cs losses indicate a process sensitive parameter. JF - Nuclear Technology AU - Gougar, MLD AU - Scheetz, B E AU - Siemer, D D AD - Pennsylvania State University, Intercollege Materials Research Laboratory, University Park, Pa 16802, USA, marylou.gougar@anlw.anl.gov Y1 - 1999/01// PY - 1999 DA - Jan 1999 SP - 93 EP - 103 VL - 125 IS - 1 SN - 0029-5450, 0029-5450 KW - Health & Safety Science Abstracts; Pollution Abstracts KW - Materials testing KW - Radioactive wastes KW - Storage KW - Standards KW - Waste disposal KW - Containment KW - Hazardous wastes KW - Technology KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16129831?accountid=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=Nuclear+Technology&rft.atitle=A+novel+waste+form+for+disposal+of+spent-nuclear-fuel+reprocessing+waste%3A+A+vitrifiable+cement&rft.au=Gougar%2C+MLD%3BScheetz%2C+B+E%3BSiemer%2C+D+D&rft.aulast=Gougar&rft.aufirst=MLD&rft.date=1999-01-01&rft.volume=125&rft.issue=1&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Nuclear+Technology&rft.issn=00295450&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Storage; Materials testing; Radioactive wastes; Standards; Waste disposal; Containment; Hazardous wastes; Technology ER - TY - JOUR T1 - A Planning-Level Model for Estimating Quantities of Wastes Generated by the Demolition of Structures during Remediation AN - 16122876; 4561495 AB - A model is presented to estimate quantities of wastes generated by the demolition of various types of industrial structures. It is intended to be used for preliminary planning purposes in the absence of any detailed structure-specific information. Detailed material quantity estimates compiled for structures at the U.S. Department of Energy's Fernald site in Ohio were used to develop the statistical relationships in the model. The model provides estimates of the total quantity of wastes, the quantities of waste concrete, and the quantities of wastes that originate from at-, below-, and above-grade portions of a structure. JF - Remediation AU - Davis, MJ AD - Environmental Assessment Division, Argonne National Laboratory, Argonne, Illinois, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 45 EP - 64 VL - 9 IS - 2 SN - 1051-5658, 1051-5658 KW - Pollution Abstracts KW - Remediation KW - Environmental restoration KW - Construction industry wastes KW - Pollution forecasting KW - Waste management KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16122876?accountid=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=Remediation&rft.atitle=A+Planning-Level+Model+for+Estimating+Quantities+of+Wastes+Generated+by+the+Demolition+of+Structures+during+Remediation&rft.au=Davis%2C+MJ&rft.aulast=Davis&rft.aufirst=MJ&rft.date=1999-01-01&rft.volume=9&rft.issue=2&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Remediation&rft.issn=10515658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Remediation; Construction industry wastes; Environmental restoration; Pollution forecasting; Waste management ER - TY - JOUR T1 - Incorporating environmental concerns into electric system expansion planning using a multi-criteria decision support system AN - 16122855; 4559519 AB - A methodology is described for incorporating environmental externalities into electric system expansion planning. It combines a conventional least-cost optimization tool, an environmental model, and a multi-criteria interval decision analysis system. The methodology can be used to analyze trade-offs between technical, economic, and environmental concerns. A case study in support of an international lending decision is used to analyze eleven power-sector expansion scenarios in terms of total system cost and environmental residuals. The scenarios are then compared by using a decision analysis tool. A brief comparison of interval and traditional decision analysis methodologies is also provided. JF - International Journal of Global Energy Issues AU - Koritarov, V S AU - Conzelmann, G AU - Veselka, T D AU - Buehring, WA AU - Cirillo, R R AU - Podinovski, V V AD - Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1999 PY - 1999 DA - 1999 SP - 60 EP - 67 VL - 12 IS - 1-6 SN - 0954-7118, 0954-7118 KW - decision support systems KW - Pollution Abstracts; Risk Abstracts KW - Development projects KW - Electric power KW - Environmental impact KW - Energy consumption KW - Cost-benefit analysis KW - Economics KW - Technology KW - P 9000:ENVIRONMENTAL ACTION KW - R2 23050:Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16122855?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Global+Energy+Issues&rft.atitle=Incorporating+environmental+concerns+into+electric+system+expansion+planning+using+a+multi-criteria+decision+support+system&rft.au=Koritarov%2C+V+S%3BConzelmann%2C+G%3BVeselka%2C+T+D%3BBuehring%2C+WA%3BCirillo%2C+R+R%3BPodinovski%2C+V+V&rft.aulast=Koritarov&rft.aufirst=V&rft.date=1999-01-01&rft.volume=12&rft.issue=1-6&rft.spage=60&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Global+Energy+Issues&rft.issn=09547118&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Cost-benefit analysis; Development projects; Electric power; Economics; Environmental impact; Energy consumption; Technology ER - TY - JOUR T1 - Regional trends in wet deposition of sulphate in the United States and SO2 emissions from 1980 through 1995 AN - 13664384; S199954285 AB - Regional trends in wet deposition and precipitation weighted concentrations (PWC) of sulphate and sulphur dioxide emissions were developed in the U.S.A. over the period 1980-1995 from monitoring data and scaled to a mean of unity. The effect of climatological variability was reduced by averaging the regional unitless scaled PWC (thereafter termed CONCDEP). The sulphur dioxide emissions data from the U.S.A., Canada and northern Mexico were weighted appropriately for each region to produce regional scaled trends of emissions. A regional transport model was used to estimate emission-weighted factors. Generally, the sulphate CONCDEP regional trends were similar to the regional weighted sulphur dioxide emissions. In eastern regions, patterns showed an initial decrease, trendless middle period and final decrease; the latter mandated by new emissions legislative policy. A significant linear regression was obtained for sulphate CONCDEP against regional weighted sulphur dioxide emissions in all regions. Results showed slopes of sulphate CONCDEP and sulphur dioxide emissions in all regions were not significantly different from unity over the monitoring period. JF - Atmospheric Environment AU - Shannon, J D AD - Argonne National Laboratory, Ill. Y1 - 1999 PY - 1999 DA - 1999 SP - 807 EP - 816 VL - 33 IS - 5 SN - 1352-2310, 1352-2310 KW - Modelling (-general-) KW - Reduction KW - Aqualine Abstracts KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13664384?accountid=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=Regional+trends+in+wet+deposition+of+sulphate+in+the+United+States+and+SO2+emissions+from+1980+through+1995&rft.au=Shannon%2C+J+D&rft.aulast=Shannon&rft.aufirst=J&rft.date=1999-01-01&rft.volume=33&rft.issue=5&rft.spage=807&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Case Study. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - A lineage-specific protein kinase crucial for myeloid maturation. AN - 69102891; 9860982 AB - To identify genes involved in macrophage development, we used the differential display technique and compared the gene expression profiles for human myeloid HL-60 leukemia cell lines susceptible and resistant to macrophage maturation. We identified a gene coding for a protein kinase, protein kinase X (PRKX), which was expressed in the maturation-susceptible, but not in the resistant, cell line. The expression of the PRKX gene was found to be induced during monocyte, macrophage, and granulocyte maturation of HL-60 cells. We also studied the expression of the PRKX gene in 12 different human tissues and transformed cell lines and found that, among these tissues and cell types, the PRKX gene is expressed only in blood. Among the blood cell lineages, the PRKX gene is specifically expressed in macrophages and granulocytes. Antisense inhibition of PRKX expression blocked terminal development in both the leukemic HL-60 cells and normal peripheral blood monocytes, implying that PRKX is a key mediator of macrophage and granulocyte maturation. Using the HL-60 cell variant deficient in protein kinase C-beta (PKC-beta) and several stable PKC-beta transfectants, we found that PRKX gene expression is under control of PKC-beta; hence PRKX is likely to act downstream of this PKC isozyme in the same signal transduction pathway leading to macrophage maturation. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Semizarov, D AU - Glesne, D AU - Laouar, A AU - Schiebel, K AU - Huberman, E AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA. Y1 - 1998/12/22/ PY - 1998 DA - 1998 Dec 22 SP - 15412 EP - 15417 VL - 95 IS - 26 SN - 0027-8424, 0027-8424 KW - DEAF1 protein, human KW - 0 KW - DNA-Binding Proteins KW - Nuclear Proteins KW - Oligodeoxyribonucleotides KW - Oligodeoxyribonucleotides, Antisense KW - Recombinant Proteins KW - Macrophage Colony-Stimulating Factor KW - 81627-83-0 KW - PRKX protein, human KW - EC 2.7.1.- KW - Protein-Serine-Threonine Kinases KW - EC 2.7.11.1 KW - Calcitriol KW - FXC9231JVH KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Genetic Variation KW - HL-60 Cells KW - Granulocytes -- enzymology KW - Humans KW - Monocytes -- enzymology KW - Macrophage Colony-Stimulating Factor -- pharmacology KW - Oligodeoxyribonucleotides -- pharmacology KW - Transcription, Genetic KW - Organ Specificity KW - Calcitriol -- pharmacology KW - Gene Expression Regulation, Neoplastic KW - Transfection KW - Recombinant Proteins -- metabolism KW - Monocytes -- cytology KW - Lymphocytes -- enzymology KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Lymphocytes -- cytology KW - Granulocytes -- cytology KW - Macrophages -- enzymology KW - Macrophages -- cytology KW - Protein-Serine-Threonine Kinases -- metabolism KW - Gene Expression Regulation, Enzymologic KW - DNA-Binding Proteins -- chemistry KW - Cell Differentiation -- physiology KW - DNA-Binding Proteins -- genetics KW - Protein-Serine-Threonine Kinases -- genetics KW - Cell Differentiation -- drug effects KW - Oligodeoxyribonucleotides, Antisense -- pharmacology KW - DNA-Binding Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69102891?accountid=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=A+lineage-specific+protein+kinase+crucial+for+myeloid+maturation.&rft.au=Semizarov%2C+D%3BGlesne%2C+D%3BLaouar%2C+A%3BSchiebel%2C+K%3BHuberman%2C+E&rft.aulast=Semizarov&rft.aufirst=D&rft.date=1998-12-22&rft.volume=95&rft.issue=26&rft.spage=15412&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 - 1999-01-28 N1 - Date created - 1999-01-28 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Cancer Res. 1978 Mar;38(3):841-9 [75063] Cancer. 1974 Apr;33(4):1027-33 [4132053] Proc Natl Acad Sci U S A. 1979 Mar;76(3):1293-7 [286311] Proc Natl Acad Sci U S A. 1979 Jun;76(6):2779-83 [288066] Biochemistry. 1979 Nov 27;18(24):5294-9 [518835] Proc Natl Acad Sci U S A. 1980 May;77(5):2936-40 [6930676] Proc Natl Acad Sci U S A. 1981 Jan;78(1):348-52 [6264439] Cancer Res. 1983 Oct;43(10):4989-96 [6576856] Science. 1985 Jul 26;229(4711):345-52 [2990048] Nature. 1986 Jul 3-9;322(6074):32-8 [2425263] Proc Natl Acad Sci U S A. 1986 Oct;83(19):7316-9 [3463970] J Immunol. 1987 Dec 1;139(11):3703-9 [2824612] Proc Natl Acad Sci U S A. 1987 Nov;84(22):7896-900 [2825169] Proc Natl Acad Sci U S A. 1988 Feb;85(4):1028-32 [3277186] J Biol Chem. 1988 Mar 5;263(7):3402-10 [3422643] J Biol Chem. 1990 Feb 5;265(4):2370-4 [2298754] Methods Enzymol. 1989;180:262-88 [2482418] J Mol Biol. 1990 Oct 5;215(3):403-10 [2231712] Mol Carcinog. 1990;3(6):350-62 [1980588] Cell Growth Differ. 1990 Jun;1(6):259-70 [1980599] Science. 1992 Aug 14;257(5072):967-71 [1354393] Exp Cell Res. 1992 Sep;202(1):28-35 [1511736] Cell Growth Differ. 1992 Oct;3(10):739-45 [1445803] Immunol Lett. 1992 Dec;34(3):257-65 [1362567] Cell. 1993 Jan 29;72(2):197-209 [7678779] Exp Cell Res. 1993 Jul;207(1):183-8 [8319769] Blood. 1993 Dec 15;82(12):3515-23 [8260692] J Biol Chem. 1994 Jan 14;269(2):872-8 [8288641] J Biol Chem. 1994 Sep 16;269(37):23230-5 [8083228] Hum Mol Genet. 1995 May;4(5):869-78 [7633447] Proc Natl Acad Sci U S A. 1995 Sep 12;92(19):8670-4 [7567994] J Interferon Cytokine Res. 1996 Jan;16(1):17-24 [8640446] Curr Opin Genet Dev. 1996 Oct;6(5):597-602 [8939717] Int J Dev Biol. 1996;Suppl 1:61S-62S [9087697] J Immunol. 1997 Sep 15;159(6):2877-85 [9300711] Proc Natl Acad Sci U S A. 1998 Apr 28;95(9):5357-61 [9560280] J Biol Chem. 1998 May 8;273(19):11583-8 [9565575] Proc Natl Acad Sci U S A. 1998 Jun 9;95(12):6573-5 [9618452] Blood. 1998 Jul 15;92(2):345-7; discussion 352 [9657727] Blood. 1998 Jul 15;92(2):348-51; discussion 352 [9657728] Proc Natl Acad Sci U S A. 1978 May;75(5):2458-62 [276884] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Cassiterite solubility in high-silica K (sub 2) O-Al (sub 2) O (sub 3) -SiO (sub 2) liquids AN - 52442543; 1999-060711 JF - Journal of the American Ceramic Society AU - Ellison, Adam J G AU - Hess, Paul C AU - Naski, Gerald C Y1 - 1998/12// PY - 1998 DA - December 1998 SP - 3215 EP - 3220 PB - American Ceramic Society, Columbus, OH VL - 81 IS - 12 SN - 0002-7820, 0002-7820 KW - liquid phase KW - surface properties KW - concentration KW - silicon dioxide KW - tin oxide KW - solubility KW - temperature KW - potassium oxide KW - cassiterite KW - aluminum oxides KW - saturation KW - phase equilibria KW - oxides KW - chemical composition KW - stoichiometry KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52442543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+the+American+Ceramic+Society&rft.atitle=Cassiterite+solubility+in+high-silica+K+%28sub+2%29+O-Al+%28sub+2%29+O+%28sub+3%29+-SiO+%28sub+2%29+liquids&rft.au=Ellison%2C+Adam+J+G%3BHess%2C+Paul+C%3BNaski%2C+Gerald+C&rft.aulast=Ellison&rft.aufirst=Adam+J&rft.date=1998-12-01&rft.volume=81&rft.issue=12&rft.spage=3215&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Ceramic+Society&rft.issn=00027820&rft_id=info:doi/ L2 - http://www.blackwellpublishing.com/journal.asp?ref=0002-7820&site=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 22 N1 - PubXState - OH N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aluminum oxides; cassiterite; chemical composition; concentration; geochemistry; liquid phase; oxides; phase equilibria; potassium oxide; saturation; silicon dioxide; solubility; stoichiometry; surface properties; temperature; tin oxide ER - TY - JOUR T1 - X-ray crystal structure of the Desulfovibrio vulgaris (Hildenborough) apoflavodoxin-riboflavin complex AN - 17423149; 4648170 AB - The apoprotein of flavodoxin from Desulfovibrio vulgaris forms a complex with riboflavin. The ability to bind riboflavin distinguishes this flavodoxin from other short-chain flavodoxins which require the phosphate of FMN for flavin binding. The redox potential of the semiquinone/hydroquinone couple of the bound riboflavin is 180 mV less negative than the corresponding complex with FMN. To elucidate the binding of riboflavin, the complex has been crystallized and the crystal structure solved by molecular replacement using native flavodoxin as a search model to a resolution of 0.183 nm. Compared to the FMN complex, the hydrogen-bonding network at the isoalloxazine sub-site of the riboflavin complex is severely disrupted by movement of the loop residues Ser58-Ile64 (60-loop) which contact the isoalloxazine by over 0.35 nm, and by a small displacement of the isoalloxazine moiety. The 60-loop movement away from the flavin increases the solvent exposure of the flavin-binding site. The conformation of the site at which 5'-phosphate of FMN normally binds is similar in the two complexes, but in the riboflavin complex a sulphate or phosphate ion from the crystallization buffer occupies the space. This causes small structural perturbations in the phosphate-binding site. The flexibility of the 60-loop in D. vulgaris flavodoxin appears to be a contributing factor to the binding of riboflavin by the apoprotein, and a feature that distinguishes the protein from other `short chain' flavodoxins. In the absence of the terminal phosphate group, free movement at the 5'-OH group of the ribityl chain can occur. Thus, the 5'-phosphate of FMN secures the cofactor at the binding site and positions it optimally. The structural changes which occur in the 60-loop in the riboflavin complex probably account for most of the positive shift that is observed in the midpoint potential of the semiquinone/hydroquinone couple of the riboflavin complex compared to that of the FMN complex. JF - European Journal of Biochemistry AU - Walsh, MA AU - McCarthy, A AU - O'Farrell, P A AU - McArdle, P AU - Cunningham, P D AU - Mayhew, S G AU - Higgins, T M AD - Bldg. 202, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, walsh@anl.gov Y1 - 1998/12// PY - 1998 DA - Dec 1998 SP - 362 EP - 371 VL - 258 IS - 2 SN - 0014-2956, 0014-2956 KW - apoflavodoxin KW - riboflavin KW - Microbiology Abstracts B: Bacteriology KW - X-ray crystallography KW - Crystal structure KW - Desulfovibrio vulgaris KW - J 02723:Photosynthesis, electron transport and related phenomena UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17423149?accountid=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=X-ray+crystal+structure+of+the+Desulfovibrio+vulgaris+%28Hildenborough%29+apoflavodoxin-riboflavin+complex&rft.au=Walsh%2C+MA%3BMcCarthy%2C+A%3BO%27Farrell%2C+P+A%3BMcArdle%2C+P%3BCunningham%2C+P+D%3BMayhew%2C+S+G%3BHiggins%2C+T+M&rft.aulast=Walsh&rft.aufirst=MA&rft.date=1998-12-01&rft.volume=258&rft.issue=2&rft.spage=362&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 N1 - SubjectsTermNotLitGenreText - Desulfovibrio vulgaris; Crystal structure; X-ray crystallography ER - TY - JOUR T1 - Biofuel use in Asia and acidifying emissions AN - 17136305; 4435669 AB - An inventory of biofuel use in Asia has been developed at the regional level for the year 1990. It is estimated that biofuel use amounts to about 22,000 PJ (1 PJ = 10 super(15) J), almost 24% of the total energy use in Asia. China and India are the two largest consumers. A relation is developed between the GDP of Asian countries and the percent contribution of biofuels to total primary energy supply. The biofuel energy estimates are used to calculate atmospheric emissions of SO sub(2) and NO sub(k). It is estimated that SO sub(2) emissions from biofuel combustion amount to 1.65 Tg (1 Tg = 10 sub(12) g), about 4.9% of total emissions. The emissions of NO sub(x) are estimated to be 1.47 Tg or 7.7% of the total. These energy and emission estimates are designed to be used in the RAINS-Asia computer model, a comprehensive analytical tool used to study energy use in Asia, its effects on the atmospheric environment, and its subsequent damage to ecosystems. JF - Energy (Oxford) AU - Streets, D G AU - Waldhoff, ST AD - Decision and Information Sciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, dstreets@anl.gov Y1 - 1998/12// PY - 1998 DA - Dec 1998 SP - 1029 EP - 1042 VL - 23 IS - 12 SN - 0360-5442, 0360-5442 KW - Asia KW - Pollution Abstracts KW - Fuels KW - Nitrogen oxides KW - Atmosphere KW - Combustion KW - Air pollution KW - Sulfur dioxide KW - Energy KW - Emissions KW - Acidification KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17136305?accountid=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=Energy+%28Oxford%29&rft.atitle=Biofuel+use+in+Asia+and+acidifying+emissions&rft.au=Streets%2C+D+G%3BWaldhoff%2C+ST&rft.aulast=Streets&rft.aufirst=D&rft.date=1998-12-01&rft.volume=23&rft.issue=12&rft.spage=1029&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&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 - Fuels; Emissions; Atmosphere; Air pollution; Nitrogen oxides; Energy; Combustion; Sulfur dioxide; Acidification ER - TY - JOUR T1 - A mini-atlas of oceanic water masses in the Permian period AN - 51320417; 1999-051494 AB - In today's oceans, surface water masses exert a controlling effect on biogeographic provinces, climate-sensitive sediments and organic productivity, so it is important to understand the factors that generate and differentiate these water masses. A generalised temperature and salinity map of the Recent, with related effects like upwelling, sea ice, and surface runoff, has been compiled in a new attempt to define marine climates. Present-day climate-sensitive sediments are included to test their reliability as water mass indicators in the geological past. Then, reversing the approach, water mass maps for the nine Permian stages have been reconstructed from the sediment types as well as from biogeographic considerations. It is clear from the Present-day water mass map that geographically or bathymetrically restricted seaways are more likely to reflect local climate and be distinct from open ocean water masses in salinity or temperature. Our Permian maps have been prepared with this duality in mind: epeiric seaways are portrayed with the most differentiated water masses, while narrow continental shelves are generally similar to adjacent oceanic areas. JF - Proceedings of the Royal Society of Victoria AU - Ziegler, Alfred M AU - Gibbs, Mark T AU - Hulver, Michael L A2 - Shi, Guang R. A2 - Archbold, Neil W. A2 - Grover, Monty Y1 - 1998/11// PY - 1998 DA - November 1998 SP - 323 EP - 343 PB - Royal Society of Victoria, Melbourne, Victoria VL - 110 IS - 1-2 SN - 0035-9211, 0035-9211 KW - epicontinental seas KW - upwelling KW - sea ice KW - paleo-oceanography KW - mapping KW - biogeography KW - paleoclimatology KW - Holocene KW - oceanography KW - Cenozoic KW - marine sediments KW - ice KW - sediments KW - Quaternary KW - modern analogs KW - Paleozoic KW - floral provinces KW - faunal provinces KW - Permian KW - paleosalinity KW - organic compounds KW - reconstruction KW - bathymetry KW - atlas KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51320417?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Royal+Society+of+Victoria&rft.atitle=A+mini-atlas+of+oceanic+water+masses+in+the+Permian+period&rft.au=Ziegler%2C+Alfred+M%3BGibbs%2C+Mark+T%3BHulver%2C+Michael+L&rft.aulast=Ziegler&rft.aufirst=Alfred&rft.date=1998-11-01&rft.volume=110&rft.issue=1-2&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Royal+Society+of+Victoria&rft.issn=00359211&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Strzelecki international symposium on Permian of eastern Tethys; biostraigraphy, paleogeography and resources N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 70 N1 - PubXState - Victoria N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - PRSVAV N1 - SubjectsTermNotLitGenreText - atlas; bathymetry; biogeography; Cenozoic; epicontinental seas; faunal provinces; floral provinces; Holocene; ice; mapping; marine sediments; modern analogs; oceanography; organic compounds; paleo-oceanography; paleoclimatology; paleosalinity; Paleozoic; Permian; Quaternary; reconstruction; sea ice; sediments; upwelling ER - TY - JOUR T1 - The EBR-II probabilistic risk assessment: Lessons learned regarding passive safety AN - 16548740; 4388018 AB - This article summarizes the results from the EBR-II Probabilistic Risk Assessment (PRA) and provides an analysis of the source of risk of the operation of EBR-II from both internal and external initiating events. The EBR-II PRA explicitly accounts for the role of reactivity feedbacks in reducing fuel damage. The results show that the expected core damage frequency from internal initiating events at EBR-II is very low, 1.6 x 10 super(-6) yr super(-1), even with a wide definition of core damage (essentially that of exceeding Technical Specification limits). The annual frequency of damage, primarily caused by liquid metal fires, from externally initiated events (excluding earthquakes) is 3.6 x 10 super(-6) yr super(-1) and the contribution of seismic events is 1.7 x 10 super(-5) yr super(-1). Overall these results are considerably better than results for other research reactors and the nuclear industry in general and stem from three main sources: low likelihood of loss of coolant caused by low system pressure and top entry double vessels; low likelihood of loss of decay heat removal caused by reliance on passive means; and low likelihood of power/flow mismatch caused by both passive feedbacks and reliability of rod scram capability. JF - Reliability Engineering & System Safety AU - Hill, D J AU - Ragland, WA AU - Roglans, J AD - Reactor Analysis Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439-4842, USA Y1 - 1998/11// PY - 1998 DA - Nov 1998 SP - 43 EP - 50 VL - 62 IS - 1-2 SN - 0951-8320, 0951-8320 KW - heat transfer KW - pressure vessels KW - reliability KW - Risk Abstracts; Health & Safety Science Abstracts KW - Risk assessment KW - Safety KW - Nuclear reactors KW - Research programs KW - R2 23020:Technological risks KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16548740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reliability+Engineering+%26+System+Safety&rft.atitle=The+EBR-II+probabilistic+risk+assessment%3A+Lessons+learned+regarding+passive+safety&rft.au=Hill%2C+D+J%3BRagland%2C+WA%3BRoglans%2C+J&rft.aulast=Hill&rft.aufirst=D&rft.date=1998-11-01&rft.volume=62&rft.issue=1-2&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Reliability+Engineering+%26+System+Safety&rft.issn=09518320&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special issue honoring Professor David Okrent. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Risk assessment; Safety; Research programs; Nuclear reactors ER - TY - JOUR T1 - Chlorine isotope investigation of natural attenuation of trichloroethene in an aerobic aquifer AN - 17187306; 4478822 AB - Natural attenuation of chlorinated aliphatic hydrocarbons (CAHs) can be an important mechanism for groundwater remediation. It is difficult to determine the effectiveness of natural CAH attenuation from chemical analyses of groundwater samples because mixing, dispersion, and secondary reactions can mask the chemical evidence of attenuation. In this paper, we explore the application of stable chlorine isotope ratio measurements as a new tool for for evaluating natural attenuation of CAHs. We report stable isotope ratios of chlorine in both trichloroethene (TCE) and inorganic chloride in groundwater from an aerobic aquifer beneath an extensively contaminated industrial site, the Paducah Gaseous Diffusion Plant in western Kentucky. Variations in the concentrations and chlorine isotope ratios of TCE and chloride in the groundwater are consistent with those expected from natural attenuation. These data support a model in which partial TCE degradation occurred in relatively impermeable, clay-rich sediments above the aquifer, and little or no further degradation of TCE occurred within the aquifer. A record of changing conditions within the TCE source area can be inferred from the spatial variation of chlorine isotope ratios for TCE and chloride within the plume. JF - Environmental Science & Technology AU - Sturchio, N C AU - Clausen, J L AU - Heraty, L J AU - Huang, L AU - Holt, B D AU - Abrajano, TA Jr AD - Environmental Research Division, Argonne National Laboratory, Argonne, Illinois 60439, USA, sturchionl.gov Y1 - 1998/10/15/ PY - 1998 DA - 1998 Oct 15 SP - 3037 EP - 3042 VL - 32 IS - 20 SN - 0013-936X, 0013-936X KW - USA, Kentucky KW - trichloroethene KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Aquifers KW - Pollution monitoring KW - Isotopes KW - USA, Kentucky, Peducah KW - Chlorides KW - Chlorine KW - Pollutants KW - Chlorine isotopes KW - Stable isotopes KW - Pollution detection KW - Chlorinated hydrocarbons KW - Groundwater pollution KW - Groundwater KW - Q5 08503:Characteristics, behavior and fate KW - P 2000:FRESHWATER POLLUTION KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17187306?accountid=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=Chlorine+isotope+investigation+of+natural+attenuation+of+trichloroethene+in+an+aerobic+aquifer&rft.au=Sturchio%2C+N+C%3BClausen%2C+J+L%3BHeraty%2C+L+J%3BHuang%2C+L%3BHolt%2C+B+D%3BAbrajano%2C+TA+Jr&rft.aulast=Sturchio&rft.aufirst=N&rft.date=1998-10-15&rft.volume=32&rft.issue=20&rft.spage=3037&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 - 2014-05-06 N1 - SubjectsTermNotLitGenreText - Pollution monitoring; Isotopes; Pollution detection; Pollutants; Chlorides; Chlorine isotopes; Chlorine; Groundwater pollution; Chlorinated hydrocarbons; Aquifers; Groundwater; Stable isotopes; USA, Kentucky, Peducah ER - TY - JOUR T1 - A comparison of liver protein changes in mice and hamsters treated with the peroxisome proliferator Wy-14,643. AN - 70060618; 9820974 AB - Interspecies differences in the liver response to Wy-14,643, a potent peroxisome proliferator in rats and mice, have been demonstrated. While both rats and mice show dramatic increases in the number of peroxisomes, the activity of peroxisomal enzymes involved in the beta-oxidation of fatty acids, and heptocyte replication, Syrian hamsters have a more moderate peroxisome proliferation response and no sustained increase in cell replication. Rats and mice, but not hamsters, develop hepatocellular carcinoma after prolonged exposure to Wy-14,643. To further characterize this species difference, two-dimensional gel electrophoresis (2-DE) has been used to compare the effect of 14-day exposure to various dietary concentrations of Wy-14,643 on liver protein expression in male mice and hamsters. Digitized images of the 2-DE protein maps were searched for significant changes. The peroxisome bifunctional enzyme (PBE) enoyl CoA hydratase/3-hydroxyacyl dehydrogenase, which migrates to the same position in mouse and hamster liver protein 2-DE patterns, increased in abundance by more than three times the control level in both mice and hamsters. In addition to the quantitative change in PBE, significant quantitative changes (P < 0.001) were found in 49 mouse liver proteins (47 decreasing and 2 increasing) and in 35 hamster liver proteins (27 decreasing and 8 increasing). There was little overlap in the mouse and hamster proteins showing quantitative changes in response to Wy-14,643, with the exception of PBE and one unidentified liver protein with an approximate molecular weight of 50,000. These results show that although peroxisome proliferation occurs in the livers of both mice and hamsters exposed to Wy-14,643, other species-specific changes in proteins occur that are independent of the peroxisome proliferation response and that could be related to species-specific susceptibility or resistance to liver tumor induction. JF - Electrophoresis AU - Giometti, C S AU - Tollaksen, S L AU - Liang, X AU - Cunningham, M L AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439, USA. csgiometti@anl.gov Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 2498 EP - 2505 VL - 19 IS - 14 SN - 0173-0835, 0173-0835 KW - Multienzyme Complexes KW - 0 KW - Peroxisome Proliferators KW - Proteins KW - Pyrimidines KW - pirinixic acid KW - 86C4MRT55A KW - 3-Hydroxyacyl CoA Dehydrogenases KW - EC 1.1.1.- KW - Ehhadh protein, mouse KW - EC 4.2.1.17 KW - Enoyl-CoA Hydratase KW - Peroxisomal Bifunctional Enzyme KW - Isomerases KW - EC 5.- KW - Index Medicus KW - Multienzyme Complexes -- metabolism KW - Animals KW - Electrophoresis -- methods KW - Hydrogen-Ion Concentration KW - Amino Acid Sequence KW - Mice KW - 3-Hydroxyacyl CoA Dehydrogenases -- metabolism KW - Enoyl-CoA Hydratase -- metabolism KW - Electrophoresis, Gel, Two-Dimensional KW - Molecular Sequence Data KW - Mesocricetus KW - Male KW - Cricetinae KW - Liver -- ultrastructure KW - Liver -- drug effects KW - Pyrimidines -- pharmacology KW - Peroxisome Proliferators -- pharmacology KW - Liver -- metabolism KW - Proteins -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/70060618?accountid=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=Electrophoresis&rft.atitle=A+comparison+of+liver+protein+changes+in+mice+and+hamsters+treated+with+the+peroxisome+proliferator+Wy-14%2C643.&rft.au=Giometti%2C+C+S%3BTollaksen%2C+S+L%3BLiang%2C+X%3BCunningham%2C+M+L&rft.aulast=Giometti&rft.aufirst=C&rft.date=1998-10-01&rft.volume=19&rft.issue=14&rft.spage=2498&rft.isbn=&rft.btitle=&rft.title=Electrophoresis&rft.issn=01730835&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-02-11 N1 - Date created - 1999-02-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Chlorine isotope investigation of natural attenuation of trichloroethene in an aerobic aquifer AN - 52114086; 2002-035759 JF - Environmental Science & Technology, ES & T AU - Sturchio, Neil C AU - Clausen, J L AU - Heraty, Linnea J AU - Huang, L J AU - Holt, B D AU - Abrajano, T A, Jr Y1 - 1998/10// PY - 1998 DA - October 1998 SP - 3037 EP - 3042 PB - American Chemical Society, Washington, DC VL - 32 IS - 20 SN - 0013-936X, 0013-936X KW - United States KW - chlorine KW - chlorinated hydrocarbons KW - aquifer vulnerability KW - McCracken County Kentucky KW - contaminant plumes KW - halogens KW - pollution KW - trichloroethane KW - remediation KW - ground water KW - aquifers KW - attenuation KW - organic compounds KW - chemical reactions KW - chloride ion KW - Kentucky KW - halogenated hydrocarbons KW - Paducah Gaseous Diffusion Plant KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52114086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chlorine+isotope+investigation+of+natural+attenuation+of+trichloroethene+in+an+aerobic+aquifer&rft.au=Sturchio%2C+Neil+C%3BClausen%2C+J+L%3BHeraty%2C+Linnea+J%3BHuang%2C+L+J%3BHolt%2C+B+D%3BAbrajano%2C+T+A%2C+Jr&rft.aulast=Sturchio&rft.aufirst=Neil&rft.date=1998-10-01&rft.volume=32&rft.issue=20&rft.spage=3037&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 - 2002-01-01 N1 - Number of references - 31 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; attenuation; chemical reactions; chloride ion; chlorinated hydrocarbons; chlorine; contaminant plumes; ground water; halogenated hydrocarbons; halogens; Kentucky; McCracken County Kentucky; organic compounds; Paducah Gaseous Diffusion Plant; pollution; remediation; trichloroethane; United States ER - TY - RPRT T1 - Heavy element radionuclides (Pu, Np, U) and super(137)Cs in soils collected from the Idaho National Engineering and Environmental Laboratory and other sites in Idaho, Montana, and Wyoming AN - 20460270; 7282177 AB - The isotopic composition of Pu in soils on and near the Idaho National Engineering and Environmental Laboratory (INEEL) has been determined in order to apportion the sources of the Pu into those derived from stratospheric fallout, regional fallout from the Nevada Test Site (NTS), and facilities on the INEEL site. Soils collected offsite in Idaho, Montana, and Wyoming were collected to further characterize NTS fallout in the region. In addition, measurements of super(237)Np and super(137)Cs were used to further identify the source of the Pu from airborne emissions at the Idaho Chemical Processing Plant (ICPP) or fugitive releases from the Subsurface Disposal Area (SDA) in the Radioactive Waste Management Complex (RWMC). It is estimated that the non-fallout Pu in INEEL soils is approximately 5.7 GBq ( similar to 150 mCi) and that the majority of this site-derived Pu has its origin from releases of Pu at the SDA in the early and late 1960s. Stratospheric fallout on the INEEL is approximately one-half of that measured elsewhere in the 40-50 N latitude band such that the 5.7 GBq of Pu originating from the SDA represents an approximate 14 percent increase over that expected from stratospheric fallout. There is convincing evidence from this study that super(241)Am, in excess of that expected from weapons-grade Pu, constituted a part of the buried waste at the SDA that has subsequently been released to the environment. Measurements of super(236)U in waters from the Snake River Plain aquifer and a soil core near the ICPP suggest that this radionuclide may be a unique interrogator of airborne releases from the ICPP. Neptunium-237 and super(238)Pu activities in INEEL soils suggest that airborne releases of Pu from the ICPP, over its operating history, may have recently been overestimated. Future super(236)U measurements in INEEL soils would provide data on the geographical influence of ICPP emissions as well as confirmatory information concerning past releases of Pu from this facility. JF - Environmental Measurements Laboratory Reports AU - Beasley, T M AU - Kelley, J M AU - Bond, LA AU - Rivera, Wm Jr AU - Liszewski, MJ AU - Orlandini, KA Y1 - 1998/10// PY - 1998 DA - Oct 1998 KW - Pollution Abstracts KW - Aquifers KW - USA, Snake R. KW - Historical account KW - USA, Wyoming KW - Radioactive wastes KW - USA, Nevada KW - Stratosphere KW - snakes KW - Waste management KW - Soil KW - USA, Idaho KW - Emissions KW - Radioisotopes KW - plains KW - latitude KW - USA, Montana KW - Hazardous wastes KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20460270?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=report&rft.jtitle=&rft.atitle=&rft.au=Beasley%2C+T+M%3BKelley%2C+J+M%3BBond%2C+LA%3BRivera%2C+Wm+Jr%3BLiszewski%2C+MJ%3BOrlandini%2C+KA&rft.aulast=Beasley&rft.aufirst=T&rft.date=1998-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Heavy+element+radionuclides+%28Pu%2C+Np%2C+U%29+and+super%28137%29Cs+in+soils+collected+from+the+Idaho+National+Engineering+and+Environmental+Laboratory+and+other+sites+in+Idaho%2C+Montana%2C+and+Wyoming&rft.title=Heavy+element+radionuclides+%28Pu%2C+Np%2C+U%29+and+super%28137%29Cs+in+soils+collected+from+the+Idaho+National+Engineering+and+Environmental+Laboratory+and+other+sites+in+Idaho%2C+Montana%2C+and+Wyoming&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2008-03-01 N1 - Last updated - 2015-03-27 ER - TY - JOUR T1 - Modeling the dry deposition velocity of sulfur dioxide and sulfate in Asia AN - 17196977; 4479476 AB - The dry deposition model was created to estimate SO sub(2) and sulfate dry deposition velocities over nine land use types in Asia. The study domain is 20 degree S-50 degree N, 39 degree -154 degree E. Monthly averaged 1 degree x 1 degree dry deposition velocities are estimated for four seasons. Model results show that the dry deposition velocity of SO sub(2) demonstrates strong seasonal and diurnal variability in summer, fall, and spring. In summer, the daytime velocity (in centimeters per second) for SO sub(2) forests is 0.4, over cultivation is 0.2, grassland is 0.5, and ocean is 0.8. Nighttime values of SO sub(2) are two or three times less than daytime values. In winter, the deposition velocity of SO sub(2) does not show much diurnal variability - the value is 0.1-0.2 except over ocean, when it is 0.5. Contrary to SO sub(2), the dry deposition velocity of sulfate only slightly varies with seasons and time of the day. Generally, its value is less than 0.1. JF - Journal of Applied Meteorology AU - Xu, Yiwen AU - Carmichael, G R AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL 60439, USA, yiwen_xu@anl.gov Y1 - 1998/10// PY - 1998 DA - Oct 1998 SP - 1084 EP - 1099 VL - 37 IS - 10 SN - 0894-8763, 0894-8763 KW - Asia KW - Pollution Abstracts KW - Sulfates KW - Velocity KW - Land use KW - Air pollution KW - Sulfur dioxide KW - Dry deposition KW - Seasonal variations KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17196977?accountid=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=Modeling+the+dry+deposition+velocity+of+sulfur+dioxide+and+sulfate+in+Asia&rft.au=Xu%2C+Yiwen%3BCarmichael%2C+G+R&rft.aulast=Xu&rft.aufirst=Yiwen&rft.date=1998-10-01&rft.volume=37&rft.issue=10&rft.spage=1084&rft.isbn=&rft.btitle=&rft.title=Journal+of+Applied+Meteorology&rft.issn=08948763&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Special Issue: Fifth International Conference on Atmospheric Science and Air Quality. N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Sulfates; Seasonal variations; Air pollution; Dry deposition; Land use; Velocity; Sulfur dioxide ER - TY - JOUR T1 - Hydrothermal formation of hydrated calcium silicates; an in situ synchrotron study AN - 853218970; 2011-020210 JF - Mineralogical Magazine AU - Shaw, S AU - Henderson, C M B AU - Clark, S M AU - Wang, Y A2 - Schott, Jacques Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 1377 EP - 1378 PB - Mineralogical Society, London VL - 62A, PART 3 SN - 0026-461X, 0026-461X KW - xonotlite KW - silicates KW - calcium KW - alkaline earth metals KW - experimental studies KW - in situ KW - tobermorite KW - crystal structure KW - hydrothermal conditions KW - alkalic composition KW - hydration KW - metals KW - synchrotrons KW - synthesis KW - crystal chemistry KW - chain silicates KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853218970?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Hydrothermal+formation+of+hydrated+calcium+silicates%3B+an+in+situ+synchrotron+study&rft.au=Shaw%2C+S%3BHenderson%2C+C+M+B%3BClark%2C+S+M%3BWang%2C+Y&rft.aulast=Shaw&rft.aufirst=S&rft.date=1998-09-01&rft.volume=62A%2C+PART+3&rft.issue=&rft.spage=1377&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 3 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - alkalic composition; alkaline earth metals; calcium; chain silicates; crystal chemistry; crystal structure; experimental studies; hydration; hydrothermal conditions; in situ; metals; silicates; synchrotrons; synthesis; tobermorite; xonotlite ER - TY - JOUR T1 - In-situ study of organic monolayer adsorption on calcite using X-ray scattering techniques AN - 853218299; 2011-020260 JF - Mineralogical Magazine AU - Sturchio, N AU - Fenter, P AU - Cheng, L AU - Lyman, P AU - Bedzyk, M J A2 - Schott, Jacques Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 1471 EP - 1472 PB - Mineralogical Society, London VL - 62A, PART 3 SN - 0026-461X, 0026-461X KW - organic compounds KW - X-ray data KW - interfaces KW - alcohols KW - crystal structure KW - adsorption KW - crystal chemistry KW - carbonates KW - methanol KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853218299?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=In-situ+study+of+organic+monolayer+adsorption+on+calcite+using+X-ray+scattering+techniques&rft.au=Sturchio%2C+N%3BFenter%2C+P%3BCheng%2C+L%3BLyman%2C+P%3BBedzyk%2C+M+J&rft.aulast=Sturchio&rft.aufirst=N&rft.date=1998-09-01&rft.volume=62A%2C+PART+3&rft.issue=&rft.spage=1471&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - adsorption; alcohols; calcite; carbonates; crystal chemistry; crystal structure; interfaces; methanol; organic compounds; X-ray data ER - TY - JOUR T1 - In-situ X-ray scattering study of the calcite-water interface AN - 52154592; 2002-008924 JF - Mineralogical Magazine AU - Fenter, P AU - Geissbuhler, P AU - DiMasi, E AU - Strajer, G AU - Sorensen, L AU - Sturchio, N AU - Anonymous Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 442 EP - 443 PB - Mineralogical Society, London VL - 62A, Part 1 SN - 0026-461X, 0026-461X KW - X-ray data KW - in situ KW - Brillouin spectra KW - mineral-water interface KW - spectra KW - wave dispersion KW - carbonates KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52154592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=In-situ+X-ray+scattering+study+of+the+calcite-water+interface&rft.au=Fenter%2C+P%3BGeissbuhler%2C+P%3BDiMasi%2C+E%3BStrajer%2C+G%3BSorensen%2C+L%3BSturchio%2C+N%3BAnonymous&rft.aulast=Fenter&rft.aufirst=P&rft.date=1998-09-01&rft.volume=62A%2C+Part+1&rft.issue=&rft.spage=442&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 4 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Brillouin spectra; calcite; carbonates; in situ; mineral-water interface; spectra; wave dispersion; X-ray data ER - TY - JOUR T1 - Proto-stellar cosmic rays and extinct radioactivities in meteorites AN - 51577634; 2006-052242 JF - Mineralogical Magazine AU - Lee, T AU - Shu, F H AU - Shang, H AU - Glassgold, A E AU - Rehm, K E A2 - Schott, Jacques Y1 - 1998/09// PY - 1998 DA - September 1998 SP - 872 PB - Mineralogical Society, London VL - 62A, Part 2 SN - 0026-461X, 0026-461X KW - calcium KW - stony meteorites KW - asteroids KW - isotopes KW - Ca-41 KW - enrichment KW - manganese KW - stable isotopes KW - iron KW - Mn-53 KW - meteorites KW - radioactive isotopes KW - aluminum KW - inclusions KW - cosmic rays KW - chondrites KW - geochemistry KW - solar system KW - alkaline earth metals KW - Fe-57 KW - achondrites KW - solar nebula KW - La-138 KW - metals KW - chondrules KW - eucrite KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51577634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Proto-stellar+cosmic+rays+and+extinct+radioactivities+in+meteorites&rft.au=Lee%2C+T%3BShu%2C+F+H%3BShang%2C+H%3BGlassgold%2C+A+E%3BRehm%2C+K+E&rft.aulast=Lee&rft.aufirst=T&rft.date=1998-09-01&rft.volume=62A%2C+Part+2&rft.issue=&rft.spage=872&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2006-01-01 N1 - Number of references - 6 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - achondrites; alkaline earth metals; aluminum; asteroids; Ca-41; calcium; chondrites; chondrules; cosmic rays; enrichment; eucrite; Fe-57; geochemistry; inclusions; iron; isotopes; La-138; manganese; metals; meteorites; Mn-53; radioactive isotopes; solar nebula; solar system; stable isotopes; stony meteorites ER - TY - JOUR T1 - A domain flip as a result of a single amino-acid substitution. AN - 73892788; 9739086 AB - BACKGROUNDThe self-assembly properties of beta domains are important features of diverse classes of proteins that include cell-adhesion molecules, surface receptors and the immunoglobulin superfamily. Immunoglobulin light-chain variable domains are well suited to the study of structural factors that determine dimerization, including how residues at the interface influence the preferred dimer arrangement.RESULTSSingle-site mutants of light-chain variable domain Len, designated LenQ38E and LenK30T, formed 'flipped' dimers in which one domain was rotated by about 180 degrees compared with the native protein. The dimer in the native protein is similar to that found between variable domains in Fab immunoglobulin fragments. When compared to the native dimer, more surface area is buried, and more hydrogen bonds and salt bridges are formed between the monomers in the flipped conformation.CONCLUSIONSImmunoglobulin light-chain variable domains can form a minimum of two distinct quaternary structures. Single-site mutations resulting from changes of one base, such as the exchange of Gln38 to Glu or Lys30 to Thr, change the 'conventional' dimer of protein Len to a flipped arrangement. Native Len is not found in the flipped-domain dimer conformation because it would have excess positive electrostatic potential at the dimer interface that is not compensated by other forces. Excess negative or positive electrostatic potential at the dimer interface can have a determining effect on the mode of dimerization. JF - Structure (London, England : 1993) AU - Pokkuluri, P R AU - Huang, D B AU - Raffen, R AU - Cai, X AU - Johnson, G AU - Stevens, P W AU - Stevens, F J AU - Schiffer, M AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439, USA. Y1 - 1998/08/15/ PY - 1998 DA - 1998 Aug 15 SP - 1067 EP - 1073 VL - 6 IS - 8 SN - 0969-2126, 0969-2126 KW - Immunoglobulin Fab Fragments KW - 0 KW - Immunoglobulin Light Chains KW - Immunoglobulin Variable Region KW - Proteins KW - Recombinant Proteins KW - Index Medicus KW - Static Electricity KW - Immunoglobulin Fab Fragments -- chemistry KW - Models, Molecular KW - Humans KW - Dimerization KW - Molecular Sequence Data KW - Immunoglobulin Light Chains -- chemistry KW - Crystallography, X-Ray KW - Recombinant Proteins -- chemistry KW - Mutagenesis -- genetics KW - Hydrogen Bonding KW - Protein Conformation KW - Proteins -- chemistry KW - Immunoglobulin Variable Region -- immunology KW - Immunoglobulin Variable Region -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/73892788?accountid=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=Structure+%28London%2C+England+%3A+1993%29&rft.atitle=A+domain+flip+as+a+result+of+a+single+amino-acid+substitution.&rft.au=Pokkuluri%2C+P+R%3BHuang%2C+D+B%3BRaffen%2C+R%3BCai%2C+X%3BJohnson%2C+G%3BStevens%2C+P+W%3BStevens%2C+F+J%3BSchiffer%2C+M&rft.aulast=Pokkuluri&rft.aufirst=P&rft.date=1998-08-15&rft.volume=6&rft.issue=8&rft.spage=1067&rft.isbn=&rft.btitle=&rft.title=Structure+%28London%2C+England+%3A+1993%29&rft.issn=09692126&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-12-08 N1 - Date created - 1998-12-08 N1 - Date revised - 2017-02-17 N1 - Genetic sequence - R4LVESF; PDB; 4LVE; 3LVE; R21VESF; R3LVESF; 2LVE N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - In situ transmission electron microscopy employed for studies of effects of ion and electron irradiation on materials. AN - 69972101; 9779830 AB - This paper summarizes the essential features of the various facilities dedicated to in situ irradiation effects research around the world at the present time, mentions some essential techniques that are involved in this type of research, and describes very briefly some examples of studies employing these facilities and techniques. JF - Microscopy research and technique AU - Allen, C W AU - Ryan, E A AD - Materials Science Division, Argonne National Laboratory, Illinois 60439, USA. Y1 - 1998/08/15/ PY - 1998 DA - 1998 Aug 15 SP - 255 EP - 259 VL - 42 IS - 4 SN - 1059-910X, 1059-910X KW - Index Medicus KW - Radiation KW - Radiation Effects KW - Radiation, Ionizing KW - Microscopy, Electron -- instrumentation KW - Laboratories KW - Microscopy, Electron -- methods KW - Research UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/69972101?accountid=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=Microscopy+research+and+technique&rft.atitle=In+situ+transmission+electron+microscopy+employed+for+studies+of+effects+of+ion+and+electron+irradiation+on+materials.&rft.au=Allen%2C+C+W%3BRyan%2C+E+A&rft.aulast=Allen&rft.aufirst=C&rft.date=1998-08-15&rft.volume=42&rft.issue=4&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Microscopy+research+and+technique&rft.issn=1059910X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1999-01-12 N1 - Date created - 1999-01-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Helium degassing related to the Kobe earthquake AN - 52557061; 1998-067103 AB - The (super 3) He/ (super 4) He ratios of groundwaters at Nishinomiya city close to the epicenter decreased immediately after the 1995 Kobe Earthquake in Japan, while the (super 4) He/ (super 20) Ne ratios increased. The delta D and delta (super 18) O values of the groundwaters were identical before and after the earthquake. Apparent groundwater ages calculated by tritium- (super 3) He concentrations also did not change, if we correct the addition of radiogenic helium into the samples by the earthquake. These observations may be attributed to following phenomenon; (1) release of radiogenic He as a result of micro-fracturing of rocks during the earthquake followed by degassing from the aquifer system, in the amount of about 4.0+ or -1.3X10 (super -9) cm (super 3) STP/cm (super 3) -rock, (2) simple mixing of low-tritium water with high radiogenic helium in the clay layer and high-tritium water with atmospheric helium in the aquifer, and (3) flow path mixing in the region of the sample screen. If we take the (1) degassing hypothesis as a function of micro-fracturing, it is possible to calculate the total He degassing related to the Kobe earthquake, 4X10 (super 11) cm (super 3) STP, which is about 3% of the steady-state global He flux of 1.2X10 (super 13) cm (super 3) STP/year. Thus, earthquake may play an important role in He degassing from the solid earth. JF - Chemical Geology AU - Sano, Yuji AU - Takahata, Naoto AU - Igarashi, George AU - Koizumi, Naoji AU - Sturchio, Neil C Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 171 EP - 179 PB - Elsevier, Amsterdam VL - 150 IS - 1-2 SN - 0009-2541, 0009-2541 KW - Kobe Japan KW - Far East KW - oxygen KW - isotopes KW - microcracks KW - tritium KW - stable isotopes KW - ground water KW - fractures KW - radioactive isotopes KW - postseismic processes KW - Hyogo-ken Nanbu earthquake 1995 KW - noble gases KW - helium KW - deuterium KW - Asia KW - geochemistry KW - Nishinomiya Japan KW - degassing KW - isotope ratios KW - O-18/O-16 KW - hydrochemistry KW - aquifers KW - cracks KW - D/H KW - hydrogen KW - Honshu KW - He-4/He-3 KW - Hyogo Japan KW - earthquakes KW - Japan KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52557061?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Helium+degassing+related+to+the+Kobe+earthquake&rft.au=Sano%2C+Yuji%3BTakahata%2C+Naoto%3BIgarashi%2C+George%3BKoizumi%2C+Naoji%3BSturchio%2C+Neil+C&rft.aulast=Sano&rft.aufirst=Yuji&rft.date=1998-08-01&rft.volume=150&rft.issue=1-2&rft.spage=171&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2FS0009-2541%2898%2900055-2 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 - 1998-01-01 N1 - Number of references - 31 N1 - Document feature - illus. incl. sect., 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - aquifers; Asia; cracks; D/H; degassing; deuterium; earthquakes; Far East; fractures; geochemistry; ground water; He-4/He-3; helium; Honshu; hydrochemistry; hydrogen; Hyogo Japan; Hyogo-ken Nanbu earthquake 1995; isotope ratios; isotopes; Japan; Kobe Japan; microcracks; Nishinomiya Japan; noble gases; O-18/O-16; oxygen; postseismic processes; radioactive isotopes; stable isotopes; tritium DO - http://dx.doi.org/10.1016/S0009-2541(98)00055-2 ER - TY - JOUR T1 - First attempt at dating groundwater from the Great Artesian Basin of Australia with (super 81) Kr using AMS AN - 50147791; 2009-090697 JF - Chinese Science Bulletin AU - Collon, P AU - Kutschera, W AU - Davids, B AU - Fauerbach, M AU - Harkewics, R AU - Morrissey, D AU - Sherrill, B AU - Steiner, M AU - Pardo, R AU - Paul, M AU - Lehmann, B E AU - Loosli, H H AU - Puchert, R AU - Anonymous Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 27 PB - Science Press, Beijing VL - 43, Suppl. SN - 1001-6538, 1001-6538 KW - Quaternary KW - Australasia KW - isotopes KW - mass spectra KW - Kr/Kr KW - krypton KW - Holocene KW - Great Artesian Basin KW - ground water KW - Cenozoic KW - accelerator mass spectra KW - Kr-81 KW - radioactive isotopes KW - dates KW - noble gases KW - absolute age KW - Australia KW - spectra KW - accuracy KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50147791?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chinese+Science+Bulletin&rft.atitle=First+attempt+at+dating+groundwater+from+the+Great+Artesian+Basin+of+Australia+with+%28super+81%29+Kr+using+AMS&rft.au=Collon%2C+P%3BKutschera%2C+W%3BDavids%2C+B%3BFauerbach%2C+M%3BHarkewics%2C+R%3BMorrissey%2C+D%3BSherrill%2C+B%3BSteiner%2C+M%3BPardo%2C+R%3BPaul%2C+M%3BLehmann%2C+B+E%3BLoosli%2C+H+H%3BPuchert%2C+R%3BAnonymous&rft.aulast=Collon&rft.aufirst=P&rft.date=1998-08-01&rft.volume=43%2C+Suppl.&rft.issue=&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Chinese+Science+Bulletin&rft.issn=10016538&rft_id=info:doi/ L2 - http://www.springer.com/new+%26+forthcoming+titles+%28default%29/journal/11434 LA - English DB - GeoRef N1 - Conference title - Ninth international conference on Geochronology, cosmochronology and isotope geology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; accelerator mass spectra; accuracy; Australasia; Australia; Cenozoic; dates; Great Artesian Basin; ground water; Holocene; isotopes; Kr-81; Kr/Kr; krypton; mass spectra; noble gases; Quaternary; radioactive isotopes; spectra ER - TY - JOUR T1 - Chlorine and carbon isotopic fractionations of aliphatic hydrocarbons in evaporation processes; implications for biodegradation AN - 50146130; 2009-090750 JF - Chinese Science Bulletin AU - Huang, L AU - Sturchio, N AU - Heraty, L AU - Abrajano, T AU - Anonymous Y1 - 1998/08// PY - 1998 DA - August 1998 SP - 55 PB - Science Press, Beijing VL - 43, Suppl. SN - 1001-6538, 1001-6538 KW - chlorine KW - chlorinated hydrocarbons KW - isotope fractionation KW - biodegradation KW - isotopes KW - pollutants KW - isotope ratios KW - Cl-37/Cl-36 KW - C-13/C-12 KW - halogens KW - pollution KW - stable isotopes KW - ground water KW - organic compounds KW - carbon KW - halogenated hydrocarbons KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50146130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chinese+Science+Bulletin&rft.atitle=Chlorine+and+carbon+isotopic+fractionations+of+aliphatic+hydrocarbons+in+evaporation+processes%3B+implications+for+biodegradation&rft.au=Huang%2C+L%3BSturchio%2C+N%3BHeraty%2C+L%3BAbrajano%2C+T%3BAnonymous&rft.aulast=Huang&rft.aufirst=L&rft.date=1998-08-01&rft.volume=43%2C+Suppl.&rft.issue=&rft.spage=55&rft.isbn=&rft.btitle=&rft.title=Chinese+Science+Bulletin&rft.issn=10016538&rft_id=info:doi/ L2 - http://www.springer.com/new+%26+forthcoming+titles+%28default%29/journal/11434 LA - English DB - GeoRef N1 - Conference title - Ninth international conference on Geochronology, cosmochronology and isotope geology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biodegradation; C-13/C-12; carbon; chlorinated hydrocarbons; chlorine; Cl-37/Cl-36; ground water; halogenated hydrocarbons; halogens; isotope fractionation; isotope ratios; isotopes; organic compounds; pollutants; pollution; stable isotopes ER - TY - JOUR T1 - Metabolism of explosive compounds by sulfate-reducing bacteria AN - 17582323; 4408133 AB - The metabolism of various explosive compounds--1,3,5-trinitrobenzene (TNB), hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine (HMX)--by a sulfate-reducing bacterial consortium, Desulfovibrio spp., was studied. The results indicated that the Desulfovibrio spp. used all of the explosive compounds studied as their sole source of nitrogen for growth. The concentrations of TNB, RDX, and HMX in the culture media dropped to below the detection limit (<0.5 ppm) within 18 days of incubation. We also observed the production of ammonia from the nitro groups of the explosive compounds in the culture media. This ammonia served as a nitrogen source for the bacterial growth, and the concentration of ammonia later dropped to <0.5 mg/L. The sulfate-reducing bacteria may be useful in the anaerobic treatment of explosives-contaminated soil. JF - Current Microbiology AU - Boopathy, R AU - Gurgas, M AU - Ullian, J AU - Manning, J F AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1998/08// PY - 1998 DA - Aug 1998 SP - 127 EP - 131 VL - 37 IS - 2 SN - 0343-8651, 0343-8651 KW - 1,3,5-Trinitrobenzene KW - cyclonite KW - hexahydro-1,3,5-trinitro-1,3,5-triazine KW - octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine KW - octogen KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Biodegradation KW - Desulfovibrio KW - Explosives KW - A 01016:Microbial degradation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17582323?accountid=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+Microbiology&rft.atitle=Metabolism+of+explosive+compounds+by+sulfate-reducing+bacteria&rft.au=Boopathy%2C+R%3BGurgas%2C+M%3BUllian%2C+J%3BManning%2C+J+F&rft.aulast=Boopathy&rft.aufirst=R&rft.date=1998-08-01&rft.volume=37&rft.issue=2&rft.spage=127&rft.isbn=&rft.btitle=&rft.title=Current+Microbiology&rft.issn=03438651&rft_id=info:doi/10.1007%2Fs002849900350 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Desulfovibrio; Explosives; Biodegradation DO - http://dx.doi.org/10.1007/s002849900350 ER - TY - JOUR T1 - Anomalous chondrites from the Sahara AN - 52558192; 1998-067374 JF - Meteoritics & Planetary Science AU - Sexton, A S AU - Bland, P A AU - Wolf, S F AU - Franchi, I A AU - Hough, R M AU - Jull, A J T AU - Klandrud, S E AU - Berry, F J AU - Pillinger, C T AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - silicates KW - stony meteorites KW - oxygen KW - isotopes KW - isotope ratios KW - Sahara Meteorites KW - mass spectra KW - olivine group KW - O-18/O-16 KW - weathering KW - stable isotopes KW - nesosilicates KW - meteorites KW - mineral composition KW - olivine KW - orthosilicates KW - petrography KW - spectra KW - chondrites KW - minerals KW - O-17/O-16 KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52558192?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Anomalous+chondrites+from+the+Sahara&rft.au=Sexton%2C+A+S%3BBland%2C+P+A%3BWolf%2C+S+F%3BFranchi%2C+I+A%3BHough%2C+R+M%3BJull%2C+A+J+T%3BKlandrud%2C+S+E%3BBerry%2C+F+J%3BPillinger%2C+C+T%3BAnonymous&rft.aulast=Sexton&rft.aufirst=A&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A143&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 3 N1 - PubXState - AR N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chondrites; isotope ratios; isotopes; mass spectra; meteorites; mineral composition; minerals; nesosilicates; O-17/O-16; O-18/O-16; olivine; olivine group; orthosilicates; oxygen; petrography; Sahara Meteorites; silicates; spectra; stable isotopes; stony meteorites; weathering ER - TY - JOUR T1 - Strontium isotopes in single presolar silicon carbide grains AN - 52556898; 1998-067322 JF - Meteoritics & Planetary Science AU - Nicolussi, G K AU - Pellin, M J AU - Lewis, R S AU - Davis, A M AU - Clayton, R N AU - Amari, S AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - A116 EP - A117 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - Sr-86/Sr-84 KW - alkaline earth metals KW - stony meteorites KW - isotopes KW - isotope ratios KW - mass spectra KW - cosmochemistry KW - carbonaceous chondrites KW - Sr-88/Sr-86 KW - carbides KW - silicon KW - stable isotopes KW - resonant ionization mass spectra KW - Murchison Meteorite KW - Sr-87/Sr-86 KW - meteorites KW - grains KW - metals KW - alloys KW - spectra KW - CM chondrites KW - chondrites KW - strontium KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52556898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Strontium+isotopes+in+single+presolar+silicon+carbide+grains&rft.au=Nicolussi%2C+G+K%3BPellin%2C+M+J%3BLewis%2C+R+S%3BDavis%2C+A+M%3BClayton%2C+R+N%3BAmari%2C+S%3BAnonymous&rft.aulast=Nicolussi&rft.aufirst=G&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A116&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alloys; carbides; carbonaceous chondrites; chondrites; CM chondrites; cosmochemistry; grains; isotope ratios; isotopes; mass spectra; metals; meteorites; Murchison Meteorite; resonant ionization mass spectra; silicon; spectra; Sr-86/Sr-84; Sr-87/Sr-86; Sr-88/Sr-86; stable isotopes; stony meteorites; strontium ER - TY - JOUR T1 - Polytype variations in presolar silicon carbide grains; microstructural characterization by transmission electron microscopy AN - 52555709; 1998-067178 JF - Meteoritics & Planetary Science AU - Daulton, T L AU - Lewis, R S AU - Amari, S AU - Anonymous Y1 - 1998/07// PY - 1998 DA - July 1998 SP - A37 EP - A38 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 4, Suppl. SN - 1086-9379, 1086-9379 KW - stony meteorites KW - crystal structure KW - carbonaceous chondrites KW - carbides KW - silicon KW - TEM data KW - Murchison Meteorite KW - polytypism KW - genesis KW - meteorites KW - cosmic dust KW - grains KW - alloys KW - CM chondrites KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52555709?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Polytype+variations+in+presolar+silicon+carbide+grains%3B+microstructural+characterization+by+transmission+electron+microscopy&rft.au=Daulton%2C+T+L%3BLewis%2C+R+S%3BAmari%2C+S%3BAnonymous&rft.aulast=Daulton&rft.aufirst=T&rft.date=1998-07-01&rft.volume=33&rft.issue=4%2C+Suppl.&rft.spage=A37&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 61st Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alloys; carbides; carbonaceous chondrites; chondrites; CM chondrites; cosmic dust; crystal structure; genesis; grains; meteorites; Murchison Meteorite; polytypism; silicon; stony meteorites; TEM data ER - TY - JOUR T1 - Detection of codon 12 point mutations of the K-ras gene from mouse lung adenocarcinoma by 'enriched' PCR AN - 17313659; 4590231 AB - Recent studies have shown that chemical carcinogens induce a high frequency of point mutations in the K-ras oncogene from mouse lung tumours at codons 12, 13 and 61. These experiments were performed to identify K-ras mutations in tissues from control and radiation-exposed mice. By modifying the technique of the 'enriched' polymerase chain reaction (PCR), it was possible to detect point mutations at codon 12 of the K-ras oncogene from 25-year-old paraffin-embedded normal lungs and lung adenocarcinomas from mice exposed to radiation. Together, a total of 120 lung tissues were screened for point mutations at codon 12 of the K-ras oncogene in this study. A significant increase in K-ras codon 12 point mutations was observed in the normal lungs from mice exposed to 24 once-weekly neutron irradiations (100%), compared with normal lungs from mice with sham-irradiation (50%) (p0.05). The validity of the technique was confirmed by sequencing two of the mutants. In doing so, a K-ras 13(Asp) point mutation was observed. The data suggest that high-linear energy transfer (LET) neutron radiation was more effective than low-LET gamma -rays in inducing K-ras point mutations at codon 12 in the lungs of B6CF sub(1) mice. JF - International Journal of Radiation Biology AU - Zhang, Y AU - Woloschak, GE AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439-4833, USA, woloschak@anl.gov Y1 - 1998/07// PY - 1998 DA - Jul 1998 SP - 43 EP - 51 VL - 74 IS - 1 SN - 0955-3002, 0955-3002 KW - K-ras gene KW - mice KW - Toxicology Abstracts KW - Radiation KW - Lung KW - Polymerase chain reaction KW - Adenocarcinoma KW - Mutation KW - X 24210:Radiation & radioactive materials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17313659?accountid=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=International+Journal+of+Radiation+Biology&rft.atitle=Detection+of+codon+12+point+mutations+of+the+K-ras+gene+from+mouse+lung+adenocarcinoma+by+%27enriched%27+PCR&rft.au=Zhang%2C+Y%3BWoloschak%2C+GE&rft.aulast=Zhang&rft.aufirst=Y&rft.date=1998-07-01&rft.volume=74&rft.issue=1&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Radiation+Biology&rft.issn=09553002&rft_id=info:doi/10.1080%2F095530098141717 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Mutation; Radiation; Adenocarcinoma; Polymerase chain reaction; Lung DO - http://dx.doi.org/10.1080/095530098141717 ER - TY - JOUR T1 - Contributions of interacting biological mechanisms to soil aggregate stabilization in restored prairie AN - 16553534; 4368107 AB - A better understanding of the soil aggregation process is needed to address a variety of concerns, including soil quality and erosion, agricultural sustainability, soil C sequestration, the mobility of hazardous chemicals and remediation of contaminated sites. We used data from a chronosequence of tallgrass prairie restorations and a path analysis approach to evaluate how the lengths of two dia size classes of fibrous roots, the length of external mycorrhizal hyphae, microbial biomass C, hot-water soluble carbohydrate C and soil organic C interact to promote the stabilization of soil aggregates. The measured binding agents accounted for 88% of the variation in macroaggregates >212 mu m diameter and goodness-of-fit indexes indicated a good practical fit of the path model to the data. The restoration of macroaggregate structure in this system was apparently driven by the direct and indirect effects of roots and external hyphae, with lesser relative contributions by the three measured C pools. Although the two root size classes had similar direct effects on the percentage of macroaggregates, their indirect contributions differed substantially. Fine roots (0.2-1 mm diameter) exerted considerable indirect effects via their strong influences on external hyphae and microbial biomass C. Very fine roots (<0.2 mm dia) made a stronger contribution to soil organic C than fine roots, but their overall indirect contribution to aggregation was minimal. In addition, the relative importance of each binding agent varied for different size fractions of macroaggregates and generally supported the hypothesis that the effectiveness of various binding mechanisms depends on the physical dimensions of the binding agents relative to the spatial scales of the aggregate planes of weakness being bridged. JF - Soil Biology and Biochemistry AU - Jastrow, J D AU - Miller, R M AU - Lussenhop, J AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL 60439, USA, jdjastrow@anl.gov Y1 - 1998/07// PY - 1998 DA - Jul 1998 SP - 905 EP - 916 VL - 30 IS - 7 SN - 0038-0717, 0038-0717 KW - USA KW - Ecology Abstracts KW - Prairies KW - Soil properties KW - Environmental restoration KW - D 04715:Reclamation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16553534?accountid=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=Contributions+of+interacting+biological+mechanisms+to+soil+aggregate+stabilization+in+restored+prairie&rft.au=Jastrow%2C+J+D%3BMiller%2C+R+M%3BLussenhop%2C+J&rft.aulast=Jastrow&rft.aufirst=J&rft.date=1998-07-01&rft.volume=30&rft.issue=7&rft.spage=905&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 N1 - SubjectsTermNotLitGenreText - Environmental restoration; Prairies; Soil properties ER - TY - JOUR T1 - Structural genomics: Bioinformatics in the driver's seat AN - 16530083; 4340418 AB - The task of solving the structures of all the proteins encoded for in completed genomes can be achieved efficiently with the right combination of high-throughput direct structure determination and computational methods. JF - Nature Biotechnology AU - Gaasterland, T AD - Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA, gaasterland@mcs.anl.gov Y1 - 1998/07// PY - 1998 DA - Jul 1998 SP - 625 EP - 627 VL - 16 IS - 7 SN - 1087-0156, 1087-0156 KW - Genomics KW - genomes KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts; Medical and Pharmaceutical Biotechnology Abstracts KW - W3 33080:Bioinformatics and computer applications KW - W 30965:Miscellaneous, Reviews KW - G 07300:Theoretical genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16530083?accountid=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=Structural+genomics%3A+Bioinformatics+in+the+driver%27s+seat&rft.au=Gaasterland%2C+T&rft.aulast=Gaasterland&rft.aufirst=T&rft.date=1998-07-01&rft.volume=16&rft.issue=7&rft.spage=625&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 ER - TY - JOUR T1 - Comparison of external exposure model in RESRAD family of codes with MCNP computations AN - 52070986; 2002-064452 JF - Health Physics AU - Kamboj, S AU - LePoire, D AU - Yu, C AU - Anonymous Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 9 EP - 10 PB - Pergamon, Long Island, NY VL - 74 IS - 6, Suppl. SN - 0017-9078, 0017-9078 KW - soils KW - concentration KW - radioactivity KW - pollutants KW - Monte Carlo analysis KW - statistical analysis KW - data processing KW - pollution KW - RESRAD KW - mathematical models KW - depth KW - geometry KW - models KW - gamma-ray spectra KW - thickness KW - spectra KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52070986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+Physics&rft.atitle=Comparison+of+external+exposure+model+in+RESRAD+family+of+codes+with+MCNP+computations&rft.au=Kamboj%2C+S%3BLePoire%2C+D%3BYu%2C+C%3BAnonymous&rft.aulast=Kamboj&rft.aufirst=S&rft.date=1998-06-01&rft.volume=74&rft.issue=6%2C+Suppl.&rft.spage=9&rft.isbn=&rft.btitle=&rft.title=Health+Physics&rft.issn=00179078&rft_id=info:doi/ L2 - http://www.health-physics.com/pt/re/healthphys/home.htm;jsessionid=G5qSTXSp0vDSHYTCTzDnLVFQz7CBNyYYSGk1jRLYMGG4QvPYTKvJ!1240718814!-949856144!8091!-1 LA - English DB - GeoRef N1 - Conference title - Forty-third annual meeting of the Health Physics Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - concentration; data processing; depth; gamma-ray spectra; geometry; mathematical models; models; Monte Carlo analysis; pollutants; pollution; radioactivity; RESRAD; soils; spectra; statistical analysis; thickness ER - TY - JOUR T1 - Surfactant foam/bioaugmentation technology for in situ treatment of TCE-DNAPLs AN - 51898045; 2004-009909 JF - Environmental Science & Technology, ES & T AU - Rothmel, Randi K AU - Peters, Robert W AU - St Martin, Edward AU - DeFlaun, Mary F Y1 - 1998/06// PY - 1998 DA - June 1998 SP - 1667 EP - 1675 PB - American Chemical Society, Washington, DC VL - 32 IS - 11 SN - 0013-936X, 0013-936X KW - chlorinated hydrocarbons KW - dispersivity KW - technology KW - degradation KW - dense nonaqueous phase liquids KW - remediation KW - ground water KW - retention KW - halogenated hydrocarbons KW - pump-and-treat KW - mobility KW - liquid phase KW - experimental studies KW - in situ KW - pollutants KW - bioaugmentation KW - injection KW - pollution KW - bioremediation KW - aquifers KW - nonaqueous phase liquids KW - volatiles KW - physical properties KW - organic compounds KW - surfactants KW - bacteria KW - volatile organic compounds KW - trichloroethylene KW - foam KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51898045?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Surfactant+foam%2Fbioaugmentation+technology+for+in+situ+treatment+of+TCE-DNAPLs&rft.au=Rothmel%2C+Randi+K%3BPeters%2C+Robert+W%3BSt+Martin%2C+Edward%3BDeFlaun%2C+Mary+F&rft.aulast=Rothmel&rft.aufirst=Randi&rft.date=1998-06-01&rft.volume=32&rft.issue=11&rft.spage=1667&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 - 33 N1 - PubXState - DC N1 - Document feature - illus. incl. 8 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; bioaugmentation; bioremediation; chlorinated hydrocarbons; degradation; dense nonaqueous phase liquids; dispersivity; experimental studies; foam; ground water; halogenated hydrocarbons; in situ; injection; liquid phase; microorganisms; mobility; nonaqueous phase liquids; organic compounds; physical properties; pollutants; pollution; pump-and-treat; remediation; retention; surfactants; technology; trichloroethylene; volatile organic compounds; volatiles ER - TY - JOUR T1 - Air-surface exchange or nonmethane organic compounds at a grassland site: Seasonal variations and stressed emissions AN - 17163540; 4449849 AB - Emissions of nonmethane organic compounds (NMOCs) were measured by a static enclosure technique at a grassland site in the midwestern United States during the growing seasons over a 2-year period. A mixture of nonmethane hydrocarbons (NMHCs) and oxygenated hydrocarbons (OxHCs) was emitted from the surface at rates exhibiting large seasonal and year-to-year variations. The average emission rate (and standard error) of the total NMOCs around noontime on sunny days during the growing seasons for the 2-year period was 1,300 plus or minus 170 mu g m super(-2) h super(-1) (mass of the total NMOCs per area of enclosed soil surface per hour) or 5.5 plus or minus 0.9 mu g g super(-1) h super(-1) (mass of the total NMOCs per mass of dry plant biomass in an enclosure per hour), with about 10% and 70% of the emissions being composed of tentatively identified NMHCs and OxHCs, respectively. Methanol was apparently derived from both the soil and vegetation and exhibited an average emission rate of 460 plus or minus 73 mu g m super(-2) h super(-1) (1.4 mu 0.2 mu g g super(-1) h super(-1)), which was the largest emission among the NMOCs. The year-to-year variation in the precipitation pattern greatly affected the NMOC emission rates. Emission rates normalized to biomass density exhibited a linear decrease as the growing season progressed. The emission rates of some NMOCs from vegetation subjected to hypoxia, frost, and physical stresses were significantly greater than the average values observed at the site. Emissions of monoterpenes and cis-3-hexen-1-ol were accelerated during the flowering of the plants and were much greater than those predicted by algorithms that correlated emission rates with temperature. JF - Journal of Geophysical Research. D. Atmospheres AU - Fukui, Y AU - Doskey, P V AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL, USA Y1 - 1998/06// PY - 1998 DA - Jun 1998 SP - 13 EP - 13,168 VL - 103 IS - D11 SN - 0148-0227, 0148-0227 KW - USA, Midwestern KW - methanol KW - Pollution Abstracts KW - Hydrocarbons KW - Vegetation KW - Biomass KW - Grasslands KW - Air sampling KW - Emission measurements KW - Organic compounds KW - Seasonal variations KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17163540?accountid=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=Air-surface+exchange+or+nonmethane+organic+compounds+at+a+grassland+site%3A+Seasonal+variations+and+stressed+emissions&rft.au=Fukui%2C+Y%3BDoskey%2C+P+V&rft.aulast=Fukui&rft.aufirst=Y&rft.date=1998-06-01&rft.volume=103&rft.issue=D11&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+D.+Atmospheres&rft.issn=01480227&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 - Emission measurements; Seasonal variations; Biomass; Grasslands; Vegetation; Organic compounds; Hydrocarbons; Air sampling ER - TY - JOUR T1 - A new metal-binding site in photosynthetic bacterial reaction centers that modulates Q sub(A) to Q sub(B) electron transfer AN - 16553145; 4372881 AB - Isolated reaction centers (RCs) from Rhodobacter sphaeroides were found to bind Zn(II) stoichiometrically and reversibly in addition to the 1 equiv of non-heme Fe(II). Metal and EPR analyses confirm that Zn(II) is ligated to a binding site that is distinct from the Fe site. When Zn(II) is bound to this site, electron transfer between the quinones Q sub(A) and Q sub(B) (Q sub(A) super(-)Q sub(B) arrow right Q sub(A)Q sub(B) super(-)) is slowed and the room-temperature kinetics become distributed across the microsecond to millisecond time domain. This effect of metal binding on the kinetics is similar to the more global effect of cooling RCs to 2 degree C in the absence of Zn(II). This suggests that Zn(II) binding alters localized protein motions that are necessary for rapid Q sub(A) super(-)Q sub(B) arrow right Q sub(A)Q sub(B) super(-) electron transfer. Inspection of the RC crystal structure suggests a cluster of histidine ligands located beneath the Q sub(B) binding pocket as a potential binding site. JF - Biochemistry (Washington) AU - Utschig, L M AU - Ohigashi, Y AU - Thurnauer, M C AU - Tiede, D M AD - Chemistry Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, utschig@anlchm.chm.anl.gov Y1 - 1998/06// PY - 1998 DA - Jun 1998 SP - 8278 EP - 8281 VL - 37 IS - 23 SN - 0006-2960, 0006-2960 KW - binding sites KW - Microbiology Abstracts B: Bacteriology KW - Metals KW - Rhodobacter sphaeroides KW - Photosynthesis KW - Electron transfer KW - Reaction centers KW - J 02723:Photosynthesis, electron transport and related phenomena UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16553145?accountid=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=A+new+metal-binding+site+in+photosynthetic+bacterial+reaction+centers+that+modulates+Q+sub%28A%29+to+Q+sub%28B%29+electron+transfer&rft.au=Utschig%2C+L+M%3BOhigashi%2C+Y%3BThurnauer%2C+M+C%3BTiede%2C+D+M&rft.aulast=Utschig&rft.aufirst=L&rft.date=1998-06-01&rft.volume=37&rft.issue=23&rft.spage=8278&rft.isbn=&rft.btitle=&rft.title=Biochemistry+%28Washington%29&rft.issn=00062960&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 - Rhodobacter sphaeroides; Photosynthesis; Electron transfer; Reaction centers; Metals ER - TY - JOUR T1 - Strontium isotopic evidence on the chemical evolution of pore waters in the Milk River Aquifer, Alberta, Canada AN - 16448153; 4351189 AB - Strontium isotope ratios were measured on 13 rock, 18 leachate and 28 pore-water samples from the Milk River aquifer, the confining argillaceous formations, and the glacial till mantling the recharge area. Strontium isotope ratios ( super(87)Sr/ super(86)Sr) of pore waters from the aquifer, confining units, and the glacial till ranged from 0.7069 to 0.7082. The super(87)Sr/ super(86)Sr ratios in aquifer pore waters decrease with increasing distance from the aquifer recharge area, and this is interpreted to be the result of mixing and water-rock interaction within the aquifer. The solute composition of the recharging groundwater is modified by the local lithology, causing distinct geochemical patterns along different flow paths within the aquifer. Whole-rock super(87)Sr/ super(86)Sr ratios indicate that the shales and till are generally more radiogenic than the aquifer sandstone. The authigenic carbonate cements and rock-forming minerals comprising the major lithologic units had little apparent influence on the pore-water Sr chemistry. Carbonate cement leachates from the till and the aquifer sandstone are more radiogenic than those from the confining shale formations. Feldspar separates from the aquifer sandstone have relatively radiogenic Sr isotope ratios, whereas bentonites from the Milk River and Colorado Shale Formations have whole-rock and leachate Sr isotope ratios that are relatively unradiogenic. Ratios of most Milk River aquifer pore waters are lower than those of any leachates or whole rocks analyzed, except the bentonites. The super(87)Sr/ super(86)Sr ratios of exchangeable Sr in the bentonites are similar to ratios found in the more evolved pore waters. Simple rock-water interaction models calculated for the whole-rock, leachate, and exchangeable-ion/pore-water pairs indicate that ion exchange with bentonite clays within the Milk River and Colorado Shale Formations appears to influence the isotopic evolution of the pore-water Sr in each of these units. JF - Applied Geochemistry AU - Armstrong, S C AU - Sturchio, N C AU - Hendry, MJ AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1998/06// PY - 1998 DA - Jun 1998 SP - 463 EP - 475 VL - 13 IS - 4 SN - 0883-2927, 0883-2927 KW - Canada, Alberta KW - Milk River Aquifer KW - Water Resources Abstracts KW - SW 0880:Chemical processes KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16448153?accountid=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=Applied+Geochemistry&rft.atitle=Strontium+isotopic+evidence+on+the+chemical+evolution+of+pore+waters+in+the+Milk+River+Aquifer%2C+Alberta%2C+Canada&rft.au=Armstrong%2C+S+C%3BSturchio%2C+N+C%3BHendry%2C+MJ&rft.aulast=Armstrong&rft.aufirst=S&rft.date=1998-06-01&rft.volume=13&rft.issue=4&rft.spage=463&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 - 2006-11-01 N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - A structured methodology for waste management facility accident analysis AN - 16134480; 4610954 AB - Guidance from the U.S. Department of Energy (DOE) for the performance of accident analysis in support of environmental impact assessments calls for a graded approach that considers frequencies as well as consequences of accidents, focuses on high-risk scenarios, and avoids bounding analyses that can obfuscate comparisons of alternative actions. This guidance reflects the fact that at the heart of an environmental impact statement is a comparative analysis of alternatives, including the proposed action; this analysis should address the environmental impacts in proportion to their potential significance, avoid addressing insignificant impacts in detail, and focus analysis resources to be as cost-effective as possible. Accordingly, a probabilistic risk analysis-based methodology to satisfy DOE guidance was developed and implemented for the DOE Waste Management Programmatic Environmental Impact Statement (WM PEIS). The methods are described and illustrated, and an outline of the computational framework is presented. This methodology, although developed for the WM PEIS, is, of course, applicable to general safety analyses. The implementation of the methods for the WM PEIS is summarized, and the extension of the methods to site-specific applications is explained. JF - Nuclear Technology AU - Mueller, C J AU - Folga, S M AU - Roglans-Ribas, J AU - Nabelssi, B AU - Mishima, J AD - Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, roglans@ra.anl.gov Y1 - 1998/06// PY - 1998 DA - Jun 1998 SP - 306 EP - 317 VL - 122 IS - 3 SN - 0029-5450, 0029-5450 KW - USA KW - Pollution Abstracts; Health & Safety Science Abstracts KW - Risk assessment KW - Federal regulations KW - Radioactive wastes KW - Environmental impact KW - Environmental impact statements KW - Waste management KW - Hazardous wastes KW - H 8000:Radiation Safety/Electrical Safety KW - P 8000:RADIATION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16134480?accountid=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=Nuclear+Technology&rft.atitle=A+structured+methodology+for+waste+management+facility+accident+analysis&rft.au=Mueller%2C+C+J%3BFolga%2C+S+M%3BRoglans-Ribas%2C+J%3BNabelssi%2C+B%3BMishima%2C+J&rft.aulast=Mueller&rft.aufirst=C&rft.date=1998-06-01&rft.volume=122&rft.issue=3&rft.spage=306&rft.isbn=&rft.btitle=&rft.title=Nuclear+Technology&rft.issn=00295450&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Risk assessment; Federal regulations; Environmental impact; Radioactive wastes; Environmental impact statements; Hazardous wastes; Waste management ER - TY - JOUR T1 - Determination of organoarsenicals in the environment by solid-phase microextraction-gas chromatography-mass spectrometry. AN - 79975881; 9646499 AB - The development of a method for the analysis of organoarsenic compounds that combines dithiol derivatization with solid-phase microextraction (SPME) sample preparation and gas chromatography-mass spectrometry (GC-MS) is described. Optimization focused on a SPME-GC-MS procedure for determination of 2-chlorovinylarsonous acid (CVAA), the primary decomposition product of the chemical warfare agent known as Lewisite. Two other organoarsenic compounds of environmental interest, dimethylarsinic acid and phenylarsonic acid, were also studied. A series of dithiol compounds was examined for derivatization of the arsenicals, and the best results were obtained either with 1,3-propanedithiol or 1,2-ethanedithiol. The derivatization procedure, fiber type, and extraction time were optimized. For CVAA, calibration curves were linear over three orders of magnitude and limits-of-detection were < 6.10(-9) M in solution, the latter a more than 400 x improvement compared to conventional solvent extraction GC-MS methods. A precision of < 10% R.S.D. was typical for the SPME-GC-MS procedure. The method was applied to a series of water samples and soil/sediment extracts, as well as to aged soil samples that had been contaminated with Lewisite. JF - Journal of chromatography. A AU - Szostek, B AU - Aldstadt, J H AD - Environmental Research Division, Argonne National Laboratory, IL 60439-4843, USA. Y1 - 1998/05/22/ PY - 1998 DA - 1998 May 22 SP - 253 EP - 263 VL - 807 IS - 2 SN - 0021-9673, 0021-9673 KW - Arsenicals KW - 0 KW - Chemical Warfare Agents KW - Indicators and Reagents KW - lewisite KW - 0N54LGU5WS KW - Index Medicus KW - Gas Chromatography-Mass Spectrometry KW - Chemical Warfare Agents -- analysis KW - Arsenicals -- analysis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79975881?accountid=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=Determination+of+organoarsenicals+in+the+environment+by+solid-phase+microextraction-gas+chromatography-mass+spectrometry.&rft.au=Szostek%2C+B%3BAldstadt%2C+J+H&rft.aulast=Szostek&rft.aufirst=B&rft.date=1998-05-22&rft.volume=807&rft.issue=2&rft.spage=253&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 - 1998-07-14 N1 - Date created - 1998-07-14 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Fibronectin-mediated cell adhesion is required for induction of 92-kDa type IV collagenase/gelatinase (MMP-9) gene expression during macrophage differentiation. The signaling role of protein kinase C-beta. AN - 79838280; 9565574 AB - Induction of the 92-kDa gelatinase (MMP-9) gene expression is associated with macrophage differentiation. In this study, we explored the regulatory mechanisms underlying this differentiation-associated MMP-9 gene expression in human HL-60 myeloid leukemia cells and human peripheral blood monocytes. Phorbol 12-myristate 13-acetate (PMA) markedly induced MMP-9 gene expression in HL-60 cells; the induction closely paralleled the timing and extent of PMA-induced cell adhesion and spreading, a hallmark of macrophage differentiation. Similarly, treatment with PMA or macrophage-colony stimulating factor stimulated adherence and spreading of blood monocytes with a concurrent 7- or 5-fold increase in MMP-9 production, respectively. In protein kinase C (PKC)-beta-deficient HL-60 variant cells (HL-525), PMA failed to induce cell adhesion and MMP-9 gene expression. Transfecting HL-525 cells with a PKC-beta expression plasmid restored PKC-beta levels and PMA inducibility of cell adhesion and spreading as well as MMP-9 gene expression. Induction of cell adhesion and MMP-9 gene expression in HL-60 cells and blood monocytes was strongly inhibited by neutralizing monoclonal antibodies to fibronectin (FN) and its receptor alpha5 beta1 integrin. HL-525 cells, which constitutively display high levels of surface alpha5 beta1 integrin, adhered and spread on immobilized FN with concomitant induction of MMP-9 gene expression. Cytochalasins B and D were each a potent inhibitor of MMP-9 production. Our results suggest that alpha5 beta1 integrin-mediated interaction of immature hematopoietic cells with FN plays a critical role in modulating matrix-degrading activities during macrophage differentiation. JF - The Journal of biological chemistry AU - Xie, B AU - Laouar, A AU - Huberman, E AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Argonne, Illinois 60439-4833, USA. Y1 - 1998/05/08/ PY - 1998 DA - 1998 May 08 SP - 11576 EP - 11582 VL - 273 IS - 19 SN - 0021-9258, 0021-9258 KW - Fibronectins KW - 0 KW - Isoenzymes KW - Receptors, Fibronectin KW - Cytochalasin B KW - 3CHI920QS7 KW - Tretinoin KW - 5688UTC01R KW - Macrophage Colony-Stimulating Factor KW - 81627-83-0 KW - Protein Kinase C KW - EC 2.7.11.13 KW - Protein Kinase C beta KW - Collagenases KW - EC 3.4.24.- KW - Matrix Metalloproteinase 9 KW - EC 3.4.24.35 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Tretinoin -- pharmacology KW - HL-60 Cells KW - Humans KW - Macrophage Colony-Stimulating Factor -- pharmacology KW - Cytochalasin B -- pharmacology KW - Receptors, Fibronectin -- physiology KW - Enzyme Induction -- drug effects KW - Fibronectins -- physiology KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Cell Differentiation -- drug effects KW - Signal Transduction KW - Cell Adhesion KW - Macrophages -- enzymology KW - Isoenzymes -- physiology KW - Monocytes -- cytology KW - Monocytes -- enzymology KW - Collagenases -- biosynthesis KW - Protein Kinase C -- physiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79838280?accountid=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+biological+chemistry&rft.atitle=Fibronectin-mediated+cell+adhesion+is+required+for+induction+of+92-kDa+type+IV+collagenase%2Fgelatinase+%28MMP-9%29+gene+expression+during+macrophage+differentiation.+The+signaling+role+of+protein+kinase+C-beta.&rft.au=Xie%2C+B%3BLaouar%2C+A%3BHuberman%2C+E&rft.aulast=Xie&rft.aufirst=B&rft.date=1998-05-08&rft.volume=273&rft.issue=19&rft.spage=11576&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-06-05 N1 - Date created - 1998-06-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Autocrine regulation of macrophage differentiation and 92-kDa gelatinase production by tumor necrosis factor-alpha via alpha5 beta1 integrin in HL-60 cells. AN - 79836628; 9565575 AB - Tumor necrosis factor-alpha (TNF-alpha) gene is one of the early response genes induced by phorbol 12-myristate 13-acetate (PMA) in human HL-60 myeloid leukemia cells. In the present study, we examined the role of the TNF-alpha autocrine loop in PMA-induced macrophage differentiation and gene expression of 92- and 72-kDa gelatinases (MMP-9 and MMP-2). In HL-60 cells, PMA inhibited cell proliferation and induced cell adhesion and spreading, expression of surface maturation marker OKM1 and phagocytic activity, as well as the expression of both gelatinases, which all characterize the macrophage phenotype. In contrast, TNF-alpha alone was only effective in inhibiting cell proliferation. Blocking the endogenous TNF-alpha activity with neutralizing anti-TNF-alpha antibodies abolished all these PMA-induced events with the exception of MMP-2 gene expression. Since fibronectin (FN)-mediated cell adhesion and spreading are prerequisite for both macrophage differentiation and MMP-9 gene expression in HL-60 cells, we hypothesized that TNF-alpha might be involved in modulating the expression of either the FN or its integrin receptor genes. Whereas PMA substantially enhanced the steady state mRNA and protein levels of both FN and alpha5 beta1 integrins, TNF-alpha alone had little effect on the expression of these genes. However, anti-TNF-alpha antibodies blocked PMA-induced augmentation of both alpha5 and beta1 integrin gene expression without affecting the expression of the FN gene. Our results suggest that TNF-alpha may regulate macrophage differentiation and critical matrix-degrading activities of myeloid progenitor cells in an autocrine manner by augmenting surface levels of the alpha5 beta1 integrin, thus promoting interactions with the extracellular matrix, a key event for maturation and migration of these cells during inflammation. JF - The Journal of biological chemistry AU - Xie, B AU - Laouar, A AU - Huberman, E AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Argonne, Illinois 60439-4833, USA. Y1 - 1998/05/08/ PY - 1998 DA - 1998 May 08 SP - 11583 EP - 11588 VL - 273 IS - 19 SN - 0021-9258, 0021-9258 KW - Fibronectins KW - 0 KW - Macrophage-1 Antigen KW - RNA, Messenger KW - Receptors, Fibronectin KW - Tumor Necrosis Factor-alpha KW - Collagenases KW - EC 3.4.24.- KW - Gelatinases KW - Metalloendopeptidases KW - Matrix Metalloproteinase 2 KW - EC 3.4.24.24 KW - Matrix Metalloproteinase 9 KW - EC 3.4.24.35 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Gelatinases -- genetics KW - HL-60 Cells KW - Humans KW - Cell Division -- drug effects KW - Autocrine Communication KW - Cell Differentiation KW - Fibronectins -- metabolism KW - Fibronectins -- genetics KW - RNA, Messenger -- genetics KW - Metalloendopeptidases -- genetics KW - Macrophage-1 Antigen -- metabolism KW - Tetradecanoylphorbol Acetate -- pharmacology KW - Phagocytosis -- drug effects KW - Cell Adhesion -- drug effects KW - Gene Expression Regulation, Developmental KW - Macrophages -- enzymology KW - Macrophages -- cytology KW - Collagenases -- genetics KW - Collagenases -- biosynthesis KW - Tumor Necrosis Factor-alpha -- physiology KW - Receptors, Fibronectin -- physiology KW - Receptors, Fibronectin -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79836628?accountid=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+biological+chemistry&rft.atitle=Autocrine+regulation+of+macrophage+differentiation+and+92-kDa+gelatinase+production+by+tumor+necrosis+factor-alpha+via+alpha5+beta1+integrin+in+HL-60+cells.&rft.au=Xie%2C+B%3BLaouar%2C+A%3BHuberman%2C+E&rft.aulast=Xie&rft.aufirst=B&rft.date=1998-05-08&rft.volume=273&rft.issue=19&rft.spage=11583&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=00219258&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-06-05 N1 - Date created - 1998-06-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Elevation of zinc protoporphyrin levels in lead workers with iron-sufficient microcytosis. AN - 79901073; 9604187 AB - Zinc protoporphyrin (ZPP) measurement is a required test under the Occupational Safety and Health Administration's lead standard. However, there is no mention of the influence of hemoglobinopathy on the ZPP test value. We undertook a retrospective laboratory review of 382 employees at the Argonne National Laboratory who had been subjects in a lead surveillance program since 1982. A total of 321 samples were analyzed, after female subjects and samples with abnormally high bilirubin levels were excluded. A group with low mean red blood cell volume (MCV; less than 80.0 fL) was compared with a group with normal MCV (greater or equal to 80.0 fL). A statistically significant difference was noted in ZPP (P < 0.007) and total bilirubin (P < 0.0003) values of two groups. There was no statistically significant difference noted in age, lead levels, or iron levels between the two groups. Abnormally high ZPP levels may occur in individuals with hemoglobinopathies. Only a minor part of this elevation could be explained by the higher bilirubin levels. JF - Journal of occupational and environmental medicine AU - Ronin, D AU - Strehl, F AD - Argonne National Laboratory, IL 60439-4832, USA. Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 492 EP - 496 VL - 40 IS - 5 SN - 1076-2752, 1076-2752 KW - Protoporphyrins KW - 0 KW - zinc protoporphyrin KW - 15442-64-5 KW - Lead KW - 2P299V784P KW - Iron KW - E1UOL152H7 KW - Index Medicus KW - Humans KW - Adult KW - Retrospective Studies KW - Aged KW - Middle Aged KW - Iron -- deficiency KW - Adolescent KW - Male KW - Population Surveillance KW - Occupational Health KW - Lead -- adverse effects KW - Hemoglobinopathies -- blood KW - Protoporphyrins -- blood UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79901073?accountid=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+occupational+and+environmental+medicine&rft.atitle=Elevation+of+zinc+protoporphyrin+levels+in+lead+workers+with+iron-sufficient+microcytosis.&rft.au=Ronin%2C+D%3BStrehl%2C+F&rft.aulast=Ronin&rft.aufirst=D&rft.date=1998-05-01&rft.volume=40&rft.issue=5&rft.spage=492&rft.isbn=&rft.btitle=&rft.title=Journal+of+occupational+and+environmental+medicine&rft.issn=10762752&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-07-16 N1 - Date created - 1998-07-16 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Protein modifications affecting triplet energy transfer in bacterial photosynthetic reaction centers. AN - 79888761; 9591686 AB - The efficiency of triplet energy transfer from the special pair (P) to the carotenoid (C) in photosynthetic reaction centers (RCs) from a large family of mutant strains has been investigated. The mutants carry substitutions at positions L181 and/or M208 near chlorophyll-based cofactors on the inactive and active sides of the complex, respectively. Light-modulated electron paramagnetic resonance at 10 K, where triplet energy transfer is thermally prohibited, reveals that the mutations do not perturb the electronic distribution of P. At temperatures > or = 70 K, we observe reduced signals from the carotenoid in most of the RCs with L181 substitutions. In particular, triplet transfer efficiency is reduced in all RCs in which a lysine at L181 donates a sixth ligand to the monomeric bacteriochlorophyll B(B). Replacement of the native Tyr at M208 on the active side of the complex with several polar residues increased transfer efficiency. The difference in the efficiencies of transfer in the RCs demonstrates the ability of the protein environment to influence the electronic overlap of the chromophores and thus the thermal barrier for triplet energy transfer. JF - Biophysical journal AU - Laible, P D AU - Chynwat, V AU - Thurnauer, M C AU - Schiffer, M AU - Hanson, D K AU - Frank, H A AD - Center for Mechanistic Biology and Biotechnology and Chemistry Division, Argonne National Laboratory, Illinois 60439, USA. laible@anl.gov Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 2623 EP - 2637 VL - 74 IS - 5 SN - 0006-3495, 0006-3495 KW - Light-Harvesting Protein Complexes KW - 0 KW - Photosynthetic Reaction Center Complex Proteins KW - Recombinant Proteins KW - Chlorophyll KW - 1406-65-1 KW - Carotenoids KW - 36-88-4 KW - Index Medicus KW - Computer Simulation KW - Energy Transfer KW - Chlorophyll -- metabolism KW - Models, Molecular KW - Dimerization KW - Mutagenesis, Site-Directed KW - Recombinant Proteins -- metabolism KW - Electron Spin Resonance Spectroscopy KW - Point Mutation KW - Light KW - Models, Chemical KW - Recombinant Proteins -- chemistry KW - Amino Acid Substitution KW - Photosynthetic Reaction Center Complex Proteins -- metabolism KW - Photosynthetic Reaction Center Complex Proteins -- chemistry KW - Carotenoids -- metabolism KW - Rhodobacter sphaeroides -- metabolism KW - Protein Conformation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79888761?accountid=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=Biophysical+journal&rft.atitle=Protein+modifications+affecting+triplet+energy+transfer+in+bacterial+photosynthetic+reaction+centers.&rft.au=Laible%2C+P+D%3BChynwat%2C+V%3BThurnauer%2C+M+C%3BSchiffer%2C+M%3BHanson%2C+D+K%3BFrank%2C+H+A&rft.aulast=Laible&rft.aufirst=P&rft.date=1998-05-01&rft.volume=74&rft.issue=5&rft.spage=2623&rft.isbn=&rft.btitle=&rft.title=Biophysical+journal&rft.issn=00063495&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-07-16 N1 - Date created - 1998-07-16 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Photochem Photobiol. 1996 Nov;64(5):823-31 [8931381] J Mol Biol. 1995 Sep 29;252(4):472-82 [7563066] Biochem Biophys Res Commun. 1976 Nov 22;73(2):501-6 [187200] Biochim Biophys Acta. 1979 Sep 11;547(3):484-501 [226129] Gene. 1985;38(1-3):19-30 [3864717] Proc Natl Acad Sci U S A. 1988 Nov;85(21):7993-7 [3186702] Biochim Biophys Acta. 1987;895(2):63-79 [3332774] Proc Natl Acad Sci U S A. 1989 Jun;86(12):4335-9 [2543969] FEBS Lett. 1989 Nov 20;258(1):47-50 [2687022] Biochemistry. 1990 Jul 3;29(26):6203-10 [2169865] Biochim Biophys Acta. 1991 Mar 1;1057(1):1-41 [1849002] Biochemistry. 1991 Jun 4;30(22):5352-60 [2036404] Biochemistry. 1991 Jun 4;30(22):5361-9 [2036405] Nature. 1992 Feb 27;355(6363):796-802 [1311417] Biochemistry. 1994 Jul 12;33(27):8313-22 [8031764] Structure. 1994 Oct 15;2(10):925-36 [7866744] J Mol Biol. 1995 Feb 24;246(3):429-57 [7877166] Science. 1997 May 2;276(5313):812-6 [9115209] N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - An interspecies prediction of the risk of radiation-induced mortality. AN - 79867425; 9588360 AB - Mortality data for B6CF1 mice exposed to 60Co gamma rays for the duration of life were used to make quantitative predictions of age-specific mortality observed in comparably exposed beagles. Simple Kaplan-Meier survival curves for the beagles and their 95% confidence intervals were computed for each dose-rate group observed. A dose-response equation was estimated from the mortality data for mice using a proportional hazard model. The dose-response model for mice was then used to generate predicted survivorship curves at dose rates that would recreate the dose burdens observed in the beagle at comparable points within the life span of the two organisms. When these predicted survivorship curves were scaled to adjust for species differences in the life span of control animals, the predictions for the mouse fell within the confidence intervals observed for the beagle. The successful interspecies extrapolation of age-specific mortality risks for species as different as the mouse and dog enhances both the value of studies involving laboratory animals and the potential relevance of the animal studies to the prediction of health effects in humans. JF - Radiation research AU - Carnes, B A AU - Olshansky, S J AU - Grahn, D AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Illinois 60439-4833, USA. Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 487 EP - 492 VL - 149 IS - 5 SN - 0033-7587, 0033-7587 KW - Cobalt Radioisotopes KW - 0 KW - Index Medicus KW - Space life sciences KW - Animals KW - Dose-Response Relationship, Drug KW - Risk Factors KW - Mice, Inbred C57BL KW - Dogs KW - Mice KW - Mice, Inbred BALB C KW - Species Specificity KW - Male KW - Female KW - Survival Analysis KW - Radiation Injuries, Experimental -- pathology KW - Radiation Injuries, Experimental -- mortality KW - Cobalt Radioisotopes -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79867425?accountid=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=An+interspecies+prediction+of+the+risk+of+radiation-induced+mortality.&rft.au=Carnes%2C+B+A%3BOlshansky%2C+S+J%3BGrahn%2C+D&rft.aulast=Carnes&rft.aufirst=B&rft.date=1998-05-01&rft.volume=149&rft.issue=5&rft.spage=487&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 - 1998-05-27 N1 - Date created - 1998-05-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Effects of LWR coolant environments on fatigue lives of austenitic stainless steels AN - 17107537; 4411437 AB - Fatigue tests have been conducted on Types 304 and 316NG stainless steels to evaluate the effects of various material and loading variables, e.g., steel type, strain rate, dissolved oxygen (DO) in water, and strain range, on the fatigue lives of these steels. The results confirm significant decreases in fatigue life in water. Unlike the situation with ferritic steels, environmental effects on Types 304 and 316NG stainless steel are more pronounced in low-DO than in high-DO water. Experimental results have been compared with estimates of fatigue life based on a statistical model. The formation and growth of fatigue cracks in air and water environments are discussed. JF - Journal of Pressure Vessel Technology. Transactions of the ASME AU - Chopra, OK AU - Gavenda, D J AD - Energy Technology Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 116 EP - 121 VL - 120 IS - 2 SN - 0094-9930, 0094-9930 KW - coolants KW - fatigue KW - loading KW - pressure vessels KW - Health & Safety Science Abstracts KW - Nuclear reactors KW - Materials testing KW - Structural analysis KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17107537?accountid=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=Effects+of+LWR+coolant+environments+on+fatigue+lives+of+austenitic+stainless+steels&rft.au=Chopra%2C+OK%3BGavenda%2C+D+J&rft.aulast=Chopra&rft.aufirst=OK&rft.date=1998-05-01&rft.volume=120&rft.issue=2&rft.spage=116&rft.isbn=&rft.btitle=&rft.title=Journal+of+Pressure+Vessel+Technology.+Transactions+of+the+ASME&rft.issn=00949930&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 - Structural analysis; Materials testing; Nuclear reactors ER - TY - JOUR T1 - Identification and control of NO sub(x) emissions using neural networks AN - 16410330; 4324824 AB - We investigate the application of two classes of artificial neural networks for the identification and control of discrete-time nonlinear dynamical systems. A fully connected recurrent network is used for process identification, and a multilayer feedforward network is used for process control. The two neural networks are arranged in series for closed-loop control of oxides of nitrogen (NO sub(x)) emissions of a simplified representation of a dynamical system. Plant data from one of Commonwealth Edison's coal-fired power plants are used for testing the approach, with initial results indicating that the method is feasible. However, further work is required to determine whether the method remains feasible as the number of state variables and control variables are increased. JF - Journal of the Air & Waste Management Association AU - Reifman, J AU - Feldman, EE AD - Reactor Analysis Division, Argonne National Laboratory, Argonne, IL, USA Y1 - 1998/05// PY - 1998 DA - May 1998 SP - 408 EP - 417 VL - 48 IS - 5 SN - 1047-3289, 1047-3289 KW - neural networks KW - Pollution Abstracts KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16410330?accountid=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+the+Air+%26+Waste+Management+Association&rft.atitle=Identification+and+control+of+NO+sub%28x%29+emissions+using+neural+networks&rft.au=Reifman%2C+J%3BFeldman%2C+EE&rft.aulast=Reifman&rft.aufirst=J&rft.date=1998-05-01&rft.volume=48&rft.issue=5&rft.spage=408&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Air+%26+Waste+Management+Association&rft.issn=10473289&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 - Speciation-dependent toxicity of neptunium(V) toward Chelatobacter heintzii AN - 16560340; 4399718 AB - This work investigates how chemical speciation controls the toxicity of neptunium and the neptunium-NTA complex toward Chelatobacter heintzii. We studied the effect of aquo and complexed/precipitated neptunium on the growth of C. heintzii in noncomplexing glucose and phosphate-buffered nitrilotriacetic acid (NTA) growth media. Equilibrium chemical speciation modeling and absorption spectroscopy were used to link neptunium speciation to biological growth inhibition. Our results show that metal toxicity of aquo NpO sub(2) super(+) significantly limits the growth of C. heintzii at free metal ion concentrations greater than approximately 10 super(-5) M. However, neptunium concentrations greater than or equal to 10 super(-4) M do not cause measurable radiotoxicity effects in C. heintzii when present in the form of a neptunium-NTA complex or colloidal/precipitated neptunium phosphate. The neptunium-NTA complex, which is stable under aerobic conditions, is destabilized by microbial degradation of NTA. When phosphate was present, degradation of NTA led to the precipitation of a neptunium-phosphate phase. JF - Environmental Science & Technology AU - Banaszak, JE AU - Reed, D T AU - Rittmann, B E AD - Chemical Technology Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA, reeddmt.anl.gov Y1 - 1998/04/16/ PY - 1998 DA - 1998 Apr 16 SP - 1085 EP - 1091 VL - 32 IS - 8 SN - 0013-936X, 0013-936X KW - Chelatobacter heintzii KW - neptunium KW - nitrilotriacetic acid KW - Pollution Abstracts; Water Resources Abstracts; Toxicology Abstracts KW - Speciation KW - Biodegradation KW - Metal complexes KW - Microbial degradation KW - Spectroscopy KW - Growth KW - Chelatobactor heintzii KW - Chemical speciation KW - Toxicity KW - Inhibition KW - Phosphates KW - Chemical precipitation KW - Phosphate KW - Equilibrium KW - Neptunium KW - Toxicity testing KW - SW 0880:Chemical processes KW - X 24165:Biochemistry KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16560340?accountid=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+Science+%26+Technology&rft.atitle=Speciation-dependent+toxicity+of+neptunium%28V%29+toward+Chelatobacter+heintzii&rft.au=Banaszak%2C+JE%3BReed%2C+D+T%3BRittmann%2C+B+E&rft.aulast=Banaszak&rft.aufirst=JE&rft.date=1998-04-16&rft.volume=32&rft.issue=8&rft.spage=1085&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 - 2015-03-24 N1 - SubjectsTermNotLitGenreText - Speciation; Growth; Biodegradation; Equilibrium; Phosphate; Chemical speciation; Toxicity; Neptunium; Inhibition; Spectroscopy; Toxicity testing; Phosphates; Chemical precipitation; Metal complexes; Microbial degradation; Chelatobactor heintzii ER - TY - JOUR T1 - Reengineering immunoglobulin domain interactions by introduction of charged residues. AN - 80030274; 9680192 AB - The formation of the antibody variable domain binding unit (Fv) is the net result of three competing assembly reactions. The affinities of concurrent homologous interactions of heavy and light chain variable domains limits the heterologous interaction leading to productive formation of the Fv. To address the possible role of light chain dimerization in this phenomenon, the Gln38 residue at the dimer interface of an immunoglobulin light chain variable domain (VL) was replaced by charged amino acids. The effects of these mutations on VL homodimer formation were monitored by small-zone size exclusion HPLC and the affinities of interaction were determined by computer simulation. Reduced VL homodimerization was observed in three of the four mutants, Q38R, Q38D and Q38K. The association constants for the Q38R and Q38D homodimers were 1.2 x 10(4) and 3.2 x 10(3) M(-1), respectively. This corresponded to a 20-75-fold reduction in the homodimer association constant relative to the wild-type VL, which had an association constant of 2.4 x 10(5) M(-1). Surprisingly, the fourth charge mutant, Q38E, had a higher association constant than the wild-type VL. The potential for charged residues to facilitate heterodimeric assembly of immunoglobulin domains was also tested. Heterodimerization was observed between the Q38D and Q38R V(L)s, but with an association constant of 4.7 x 10(4) M(-1), approximately fivefold lower than that obtained for homodimerization of the native V(L). In addition, replacement of the neutral, solvent-accessible Gln38 residue with either Asp or Arg was found to be significantly destabilizing. These results suggest that charged residues could be introduced at immunoglobulin domain interfaces to guide heterodimer formation and to minimize unfavorable competing homologous associations. Nonetheless, these apparently simple modifications may also result in unintended consequences that are likely to depend upon structural features of particular variable domains. JF - Protein engineering AU - Raffen, R AU - Stevens, P W AU - Boogaard, C AU - Schiffer, M AU - Stevens, F J AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439, USA. Y1 - 1998/04// PY - 1998 DA - April 1998 SP - 303 EP - 309 VL - 11 IS - 4 SN - 0269-2139, 0269-2139 KW - Immunoglobulin Light Chains KW - 0 KW - Index Medicus KW - Mutagenesis, Site-Directed KW - Chromatography, Gel KW - Models, Molecular KW - Dimerization KW - Protein Denaturation KW - Chromatography, High Pressure Liquid KW - Immunoglobulin Light Chains -- metabolism KW - Protein Engineering KW - Immunoglobulin Light Chains -- genetics KW - Immunoglobulin Light Chains -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/80030274?accountid=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=Protein+engineering&rft.atitle=Reengineering+immunoglobulin+domain+interactions+by+introduction+of+charged+residues.&rft.au=Raffen%2C+R%3BStevens%2C+P+W%3BBoogaard%2C+C%3BSchiffer%2C+M%3BStevens%2C+F+J&rft.aulast=Raffen&rft.aufirst=R&rft.date=1998-04-01&rft.volume=11&rft.issue=4&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Protein+engineering&rft.issn=02692139&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-09-22 N1 - Date created - 1998-09-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Iron sulfides and reservoir fouling in the Prudhoe Bay area AN - 52419276; 2000-000914 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Karet, Gail B AU - Antonio, Mark R AU - Wasserman, S R AU - Williams, C W AU - Guzowski, John P, Jr AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 PB - American Chemical Society, Washington, DC VL - 215 IS - 1-2 SN - 0065-7727, 0065-7727 KW - United States KW - petroleum engineering KW - experimental studies KW - isotopes KW - Fe-57 KW - analog simulation KW - Prudhoe Bay Field KW - petroleum KW - production KW - stable isotopes KW - oil and gas fields KW - iron KW - models KW - laboratory studies KW - chemical reactions KW - iron sulfides KW - metals KW - Northern Alaska KW - Alaska KW - spectra KW - sulfides KW - geochemistry KW - Mossbauer spectra 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/52419276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Iron+sulfides+and+reservoir+fouling+in+the+Prudhoe+Bay+area&rft.au=Karet%2C+Gail+B%3BAntonio%2C+Mark+R%3BWasserman%2C+S+R%3BWilliams%2C+C+W%3BGuzowski%2C+John+P%2C+Jr%3BAnonymous&rft.aulast=Karet&rft.aufirst=Gail&rft.date=1998-04-01&rft.volume=215&rft.issue=1-2&rft.spage=GEOC+063&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th American Chemical Society national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; analog simulation; chemical reactions; experimental studies; Fe-57; geochemistry; iron; iron sulfides; isotopes; laboratory studies; metals; models; Mossbauer spectra; Northern Alaska; oil and gas fields; petroleum; petroleum engineering; production; Prudhoe Bay Field; spectra; stable isotopes; sulfides; United States ER - TY - JOUR T1 - Polycyclic aromatic hydrocarbons in aquatic sediments; insights from compound-specific carbon isotope analysis AN - 50299259; 2000-000896 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Abrajano, T A, Jr AU - Anonymous Y1 - 1998/04// PY - 1998 DA - April 1998 PB - American Chemical Society, Washington, DC VL - 215 IS - 1-2 SN - 0065-7727, 0065-7727 KW - isotopes KW - Conception Bay KW - Newfoundland and Labrador KW - Saint John's Newfoundland KW - Newfoundland KW - spatial distribution KW - marine sediments KW - carbon KW - sediments KW - geochemistry KW - concentration KW - pollutants KW - pollution KW - fresh-water environment KW - provenance KW - organic compounds KW - Canada KW - marine environment KW - Newfoundland Island KW - hydrocarbons KW - polycyclic aromatic hydrocarbons KW - Eastern Canada KW - aquatic environment KW - aromatic hydrocarbons 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/50299259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Polycyclic+aromatic+hydrocarbons+in+aquatic+sediments%3B+insights+from+compound-specific+carbon+isotope+analysis&rft.au=Abrajano%2C+T+A%2C+Jr%3BAnonymous&rft.aulast=Abrajano&rft.aufirst=T&rft.date=1998-04-01&rft.volume=215&rft.issue=1-2&rft.spage=GEOC+045&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 215th American Chemical Society national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquatic environment; aromatic hydrocarbons; Canada; carbon; concentration; Conception Bay; Eastern Canada; fresh-water environment; geochemistry; hydrocarbons; isotopes; marine environment; marine sediments; Newfoundland; Newfoundland and Labrador; Newfoundland Island; organic compounds; pollutants; pollution; polycyclic aromatic hydrocarbons; provenance; Saint John's Newfoundland; sediments; spatial distribution ER - TY - JOUR T1 - Air quality impacts as a result of changes in energy use in China's Jiangsu Province AN - 17309505; 4549070 AB - Potential changes in air quality associated with increases in SO sub(2) emissions resulting from industrial growth for Jiangsu Province and the Shanghai Municipality in China are evaluated for the years 1990 (current) and 2010 (future) with a "no further control" scenario. Two long-range transport models are used to estimate airborne concentrations and deposition of SO sub(2) and sulfate, based on available data on emissions originating from area and major point sources. Modeling results demonstrate how human health and ecological impacts are related to the projected scenario of industrial growth, in terms of the critical level (or concentration) and critical loads. The current approach provides an effective and valuable tool for preliminary assessment of potential impacts of these changes on human health and critical ecosystems in the region for use in integrated energy and environmental risk assessments. JF - Atmospheric Environment AU - Chang, Y-S AU - Arndt, R L AU - Calori, G AU - Carmichael, G R AU - Streets, D G AU - Su, H AD - Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439, USA Y1 - 1998/04// PY - 1998 DA - Apr 1998 SP - 1383 EP - 1395 VL - 32 IS - 8 SN - 1352-2310, 1352-2310 KW - China KW - Pollution Abstracts; Health & Safety Science Abstracts KW - Risk assessment KW - Pollution effects KW - Public health KW - Sulfur dioxide KW - Environmental impact KW - Energy consumption KW - Ecosystem disturbance KW - Industrial emissions KW - H 3000:Environment and Ecology KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17309505?accountid=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=Air+quality+impacts+as+a+result+of+changes+in+energy+use+in+China%27s+Jiangsu+Province&rft.au=Chang%2C+Y-S%3BArndt%2C+R+L%3BCalori%2C+G%3BCarmichael%2C+G+R%3BStreets%2C+D+G%3BSu%2C+H&rft.aulast=Chang&rft.aufirst=Y-S&rft.date=1998-04-01&rft.volume=32&rft.issue=8&rft.spage=1383&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2897%2900134-9 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Pollution effects; Energy consumption; Ecosystem disturbance; Industrial emissions; Environmental impact; Risk assessment; Public health; Sulfur dioxide DO - http://dx.doi.org/10.1016/S1352-2310(97)00134-9 ER - TY - JOUR T1 - A comparison of flame ionization and ozone chemiluminescence for the determination of atmospheric hydrocarbons AN - 16124989; 4549075 AB - A reactive hydrocarbon analyzer has been constructed on the basis of chemiluminescence reaction with ozone. This detector is designed to operate at varying temperatures which take advantage of the different rates of reaction of the hydrocarbon classes with ozone to yield a measure of their atmospheric reactivity. When operated at high temperatures (170 degree C), all hydrocarbons will give a chemiluminescence signal. Reported here is a direct comparison of the ozone chemiluminescent detector (operated at a temperature of 170 degree C) with a flame ionization detector. This comparison was accomplished by connecting a capillary gas chromatograph to each of the two detectors by means of a switching valve. Twenty-seven compounds representing alkanes, alkenes, aromatics, and oxygenated hydrocarbons (aldehydes, ketones, alcohols, and ethers) were studied. For the compounds studied, analytical sensitivities were 10-1000 times better for the chemiluminescence detector. The results of this comparison indicate that the response of the chemiluminescent detector at 170 degree C correlates with a total carbon detector (flame ionization detection) and that total response is a measure of total carbon in the sample. The chemiluminescent system will be very useful for gas chromatographic detection of atmospheric hydrocarbons, particularly of oxygenates in complex mixtures. JF - Atmospheric Environment AU - Marley, NA AU - Gaffney, J S AD - Environmental Research Division, Bldg. 203, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA Y1 - 1998/04// PY - 1998 DA - Apr 1998 SP - 1435 EP - 1444 VL - 32 IS - 8 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts KW - Pollution detection KW - Hydrocarbons KW - Atmospheric chemistry KW - Chemiluminescence KW - Ozone KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16124989?accountid=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=A+comparison+of+flame+ionization+and+ozone+chemiluminescence+for+the+determination+of+atmospheric+hydrocarbons&rft.au=Marley%2C+NA%3BGaffney%2C+J+S&rft.aulast=Marley&rft.aufirst=NA&rft.date=1998-04-01&rft.volume=32&rft.issue=8&rft.spage=1435&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2897%2900142-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Pollution detection; Hydrocarbons; Atmospheric chemistry; Chemiluminescence; Ozone DO - http://dx.doi.org/10.1016/S1352-2310(97)00142-8 ER - TY - JOUR T1 - Capillary gas chromatographic analysis of nitrogen dioxide and PANs with luminol chemiluminescent detection AN - 16122657; 4549076 AB - Peroxyacyl nitrates (PANs) and nitrogen dioxide are important atmospheric air pollutants in the troposphere. These atmospheric nitrogen species are strongly coupled chemically by a clearly temperature-dependent equilibrium in the troposphere. A chemical method that can measure both nitrogen dioxide and PANs rapidly and with sub-part-per-billion detection is described that is based upon a modified luminol detection system coupled to a capillary gas chromatographic column by using helium as a carrier. The system can readily separate and detect nitrogen dioxide, peroxyacetyl nitrate, peroxyproprionyl nitrate, and peroxybutyrl nitrate with detection limits in the low tens of parts per trillion with total analysis time of less than 1 min. Calibration of PAN by thermal decomposition to nitrogen dioxide is demonstrated with PAN detection sensitivities approximately 75% of the sensitivities observed for NO sub(2) luminol detection by using helium as a carrier gas. The advantages of this method for simultaneous measurement of nitrogen dioxide and PANs over ozone chemiluminescent detection and electron capture detection are discussed, as well as potential applications of this method for heterogeneous surface chemistry studies of PANs and nitrogen dioxide and for tropospheric measurements. JF - Atmospheric Environment AU - Gaffney, J S AU - Bornick, R M AU - Chen, Y-H AU - Marley, NA AD - Environmental Research Division, Bldg. 203, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439, USA Y1 - 1998/04// PY - 1998 DA - Apr 1998 SP - 1445 EP - 1454 VL - 32 IS - 8 SN - 1352-2310, 1352-2310 KW - Peroxyacyl nitrate KW - Pollution Abstracts KW - Air pollution KW - Nitrogen dioxide KW - Pollution detection KW - Gas chromatography KW - Troposphere KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16122657?accountid=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=Capillary+gas+chromatographic+analysis+of+nitrogen+dioxide+and+PANs+with+luminol+chemiluminescent+detection&rft.au=Gaffney%2C+J+S%3BBornick%2C+R+M%3BChen%2C+Y-H%3BMarley%2C+NA&rft.aulast=Gaffney&rft.aufirst=J&rft.date=1998-04-01&rft.volume=32&rft.issue=8&rft.spage=1445&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2FS1352-2310%2897%2900098-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 1999-10-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Nitrogen dioxide; Air pollution; Pollution detection; Gas chromatography; Troposphere DO - http://dx.doi.org/10.1016/S1352-2310(97)00098-8 ER - TY - JOUR T1 - A novel fermentation pathway in anEscherichia coli mutant producing succinic acid, acetic acid, and ethanol AN - 815536028; 13859173 AB - Escherichia coli strain NZN111, which is unable to grow fermentatively because of insertional inactivation of the genes encoding pyruvate: formate lyase and the fermentative lactate dehydrogenase, gave rise spontaneously to a chromosomal mutation that restored its ability to ferment glucose. The mutant strain, named AFP111, fermented glucose more slowly than did its wild-type ancestor, strain W1485, and generated a very different spectrum of products. AFP111 produced succinic acid, acetic acid, and ethanol in proportions of approx 2:1:1. Calculations of carbon and electron balances accounted fully for the observed products; 1 mol of glucose was converted to 1 mol of succinic acid and 0.5 mol each of acetic acid and ethanol. The data support the emergence in E.coli of a novel succinic acid:acetic acid:ethanol fermentation pathway. JF - Applied Biochemistry and Biotechnology AU - Donnelly, Mark I AU - Millard, Cynthia Sanville AU - Clark, David P AU - Chen, Michael J AU - Rathke, Jerome W AD - Chemical Technology Division, Argonne National Laboratory, 60439, Argonne, IL Y1 - 1998/03// PY - 1998 DA - Mar 1998 SP - 187 EP - 198 PB - Humana Press Inc., 999 Riverview Dr., Ste. 208 Totowa NJ 07512 USA VL - 70-72 IS - 1 SN - 0273-2289, 0273-2289 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Carbon KW - Data processing KW - Pyruvic acid KW - Fermentation KW - Escherichia coli KW - Glucose KW - Acetic acid KW - Succinic acid KW - Mutation KW - Ethanol KW - L-Lactate dehydrogenase KW - J 02310:Genetics & Taxonomy KW - A 01330:Food Microbiology KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/815536028?accountid=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+Biochemistry+and+Biotechnology&rft.atitle=A+novel+fermentation+pathway+in+anEscherichia+coli+mutant+producing+succinic+acid%2C+acetic+acid%2C+and+ethanol&rft.au=Donnelly%2C+Mark+I%3BMillard%2C+Cynthia+Sanville%3BClark%2C+David+P%3BChen%2C+Michael+J%3BRathke%2C+Jerome+W&rft.aulast=Donnelly&rft.aufirst=Mark&rft.date=1998-03-01&rft.volume=70-72&rft.issue=1&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Applied+Biochemistry+and+Biotechnology&rft.issn=02732289&rft_id=info:doi/10.1007%2FBF02920135 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Last updated - 2013-12-04 N1 - SubjectsTermNotLitGenreText - Pyruvic acid; Data processing; Carbon; Fermentation; Glucose; Mutation; Succinic acid; Acetic acid; L-Lactate dehydrogenase; Ethanol; Escherichia coli DO - http://dx.doi.org/10.1007/BF02920135 ER - TY - JOUR T1 - An integrated bioconversion process for production of l-lactic acid from starchy potato feedstocks AN - 807291353; 13859195 AB - The potential market for lactic acid as the feedstock for biodegradable polymers, oxygenated chemicals, and specialty chemicals is significant. L-lactic acid is often the desired enantiomer for such applications. However, stereospecific lactobacilli do not metabolize starch efficiently. In this work, Argonne researchers have developed a process to convert starchy feedstocks into L-lactic acid. The processing steps include starch recovery, continuous liquefaction, and simultaneous saccharification and fermentation. Over 100 g/L of lactic acid was produced in less than 48 h. The optical purity of the product was greater than 95%. This process has potential economical advantages over the conventional process. JF - Applied Biochemistry and Biotechnology AU - Tsai, S P AU - Moon, SH AD - Argonne National Laboratory, 9700 South Cass Avenue, 60439-4815, Argonne, Illinois Y1 - 1998/03// PY - 1998 DA - Mar 1998 SP - 417 EP - 428 PB - Humana Press Inc., 999 Riverview Dr., Ste. 208 Totowa NJ 07512 USA VL - 70-72 IS - 1 SN - 0273-2289, 0273-2289 KW - Biotechnology and Bioengineering Abstracts KW - Lactobacillus KW - Enantiomers KW - Fermentation KW - Solanum tuberosum KW - bioconversion KW - Lactic acid KW - Starch KW - Biodegradability KW - W 30935:Food Biotechnology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/807291353?accountid=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=An+integrated+bioconversion+process+for+production+of+l-lactic+acid+from+starchy+potato+feedstocks&rft.au=Tsai%2C+S+P%3BMoon%2C+SH&rft.aulast=Tsai&rft.aufirst=S&rft.date=1998-03-01&rft.volume=70-72&rft.issue=1&rft.spage=417&rft.isbn=&rft.btitle=&rft.title=Applied+Biochemistry+and+Biotechnology&rft.issn=02732289&rft_id=info:doi/10.1007%2FBF02920157 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Last updated - 2013-12-04 N1 - SubjectsTermNotLitGenreText - Enantiomers; Fermentation; bioconversion; Lactic acid; Starch; Biodegradability; Lactobacillus; Solanum tuberosum DO - http://dx.doi.org/10.1007/BF02920157 ER - TY - JOUR T1 - Molybdenum isotopic composition of individual presolar silicon carbide grains from the Murchison Meteorite AN - 52602262; 1998-036098 AB - Analyses are presented of 23 presolar SiC grains for delta (super 92) Mo, delta (super 94) Mo, delta (super 95) Mo, delta (super 97) Mo, delta (super 98) Mo and delta (super 100) Mo, normalized to (super 96) Mo. Mo is particularly interesting since its solar composition involves s-, r- and p-isotopes. The analyses were made by resonant ionization MS and can measure the isotopic composition of trace elements in the ppm range from mu m-sized presolar grains. The Mo s-process signature in separate grains provides a record of s-process nucleosynthesis in individual TP-AGB stars. Linear correlations among the Mo isotopic ratios indicate mixing of s-process material and a component of near-solar composition. If the Mo in the SiC grains is representative of solar system s-process material, the relative contribution of s-process Mo in the solar system is estimated as 41.7 + or - 1.3 % for (super 95) Mo, 55.1 + or - 1.8 % for (super 97) Mo, and 72.6 + or - 1.5 % for (super 98) Mo. JF - Geochimica et Cosmochimica Acta AU - Nicolussi, G K AU - Pellin, M J AU - Lewis, R S AU - Davis, A M AU - Amari, S AU - Clayton, R N Y1 - 1998/03// PY - 1998 DA - March 1998 SP - 1093 EP - 1104 PB - Pergamon, Oxford VL - 62 IS - 6 SN - 0016-7037, 0016-7037 KW - stony meteorites KW - isotopes KW - cosmogenic elements KW - techniques KW - carbides KW - silicon KW - Murchison Meteorite KW - meteorites KW - molybdenum KW - alloys KW - chondrites KW - geochemistry KW - resonant ion mass spectroscopy KW - chemical analysis KW - parent bodies KW - mass spectroscopy KW - cosmochemistry KW - carbonaceous chondrites KW - grains KW - stars KW - metals KW - RIMS method KW - CM chondrites KW - spectroscopy KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52602262?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Molybdenum+isotopic+composition+of+individual+presolar+silicon+carbide+grains+from+the+Murchison+Meteorite&rft.au=Nicolussi%2C+G+K%3BPellin%2C+M+J%3BLewis%2C+R+S%3BDavis%2C+A+M%3BAmari%2C+S%3BClayton%2C+R+N&rft.aulast=Nicolussi&rft.aufirst=G&rft.date=1998-03-01&rft.volume=62&rft.issue=6&rft.spage=1093&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2898%2900038-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alloys; carbides; carbonaceous chondrites; chemical analysis; chondrites; CM chondrites; cosmochemistry; cosmogenic elements; geochemistry; grains; isotopes; mass spectroscopy; metals; meteorites; molybdenum; Murchison Meteorite; parent bodies; resonant ion mass spectroscopy; RIMS method; silicon; spectroscopy; stars; stony meteorites; techniques DO - http://dx.doi.org/10.1016/S0016-7037(98)00038-6 ER - TY - RPRT T1 - Feasibility study for remedial action for the quarry residuals operable unit at the Weldon Spring Site, Weldon Spring, Missouri AN - 52416583; 2000-000059 AB - The U.S. Department of Energy (DOE) is conducting cleanup activities at the Weldon Spring site, which is located in St. Charles County, Missouri, about 48 km (30 mi) west of St. Louis. Cleanup of the Weldon Spring site consists of several integrated components. The quarry residuals operable unit (QROU) is one of four operable units being evaluated. In accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended, a remedial investigation/feasibility study (RI/FS) is being conducted to evaluate conditions and potential responses for the following areas and/or media that constitute the QROU: (1) the residual material (soil and sediment) remaining at the Weldon Spring quarry after removal of the bulk waste (about 11 million L (3 million gal) of uranium-contaminated ponded water was also addressed previous to bulk waste removal); (2) other media located in the surrounding vicinity of the quarry, including adjacent soil, surface water, and sediment in Femme Osage Slough and several creeks; and (3) quarry groundwater located primarily north of Femme Osage Slough. Potential impacts to the St. Charles County well field downgradient of the quarry area are also being addressed as part of QROU RI/FS evaluations. For remedial action sites, it is DOE policy to integrate values associated with the National Environmental Policy Act (NEPA) into the CERCLA decision-making process. The analyses contained herein address NEPA values as appropriate to the actions being considered for the QROU. A work plan summarizing initial site conditions and providing conceptual site hydrogeological and exposure models was published in January 1994. The RI and baseline risk assessment (BRA) reports have been completed. The RI discusses in detail the nature and extent and the fate and transport of contamination at the quarry area. JF - Feasibility study for remedial action for the quarry residuals operable unit at the Weldon Spring Site, Weldon Spring, Missouri Y1 - 1998/03// PY - 1998 DA - March 1998 SP - 236 VL - DOE/OR/21548-595 KW - United States KW - aquifer vulnerability KW - isotopes KW - Missouri KW - feasibility studies KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - radioactive isotopes KW - transport KW - Saint Charles County Missouri KW - soils KW - pollutants KW - quarries KW - pollution KW - decision-making KW - migration of elements KW - aquifers KW - metals KW - Weldon Spring KW - uranium KW - waste disposal KW - actinides KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52416583?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=1998-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Feasibility+study+for+remedial+action+for+the+quarry+residuals+operable+unit+at+the+Weldon+Spring+Site%2C+Weldon+Spring%2C+Missouri&rft.title=Feasibility+study+for+remedial+action+for+the+quarry+residuals+operable+unit+at+the+Weldon+Spring+Site%2C+Weldon+Spring%2C+Missouri&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98004806NEG, Springfield, VA, United States N1 - SuppNotes - Contract AC05-86OR21548 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Chemical studies of H chondrites 9; volatile trace element composition and petrographic classification of equilibrated H chondrites AN - 50312506; 1998-031671 JF - Meteoritics & Planetary Science AU - Wolf, Stephen F AU - Lipschutz, Michael E Y1 - 1998/03// PY - 1998 DA - March 1998 SP - 303 EP - 312 PB - Meteoritical Society, Fayetteville, AR VL - 33 IS - 2 SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - discriminant analysis KW - stony meteorites KW - parent bodies KW - statistical analysis KW - cosmochemistry KW - correlation KW - H chondrites KW - thermal history KW - variations KW - meteorites KW - volatiles KW - multivariate analysis KW - classification KW - probability KW - trace elements KW - chondrites KW - chemical composition KW - geochemistry KW - regression analysis KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50312506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Chemical+studies+of+H+chondrites+9%3B+volatile+trace+element+composition+and+petrographic+classification+of+equilibrated+H+chondrites&rft.au=Wolf%2C+Stephen+F%3BLipschutz%2C+Michael+E&rft.aulast=Wolf&rft.aufirst=Stephen&rft.date=1998-03-01&rft.volume=33&rft.issue=2&rft.spage=303&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 41 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; chondrites; classification; correlation; cosmochemistry; discriminant analysis; geochemistry; H chondrites; meteorites; multivariate analysis; ordinary chondrites; parent bodies; probability; regression analysis; statistical analysis; stony meteorites; thermal history; trace elements; variations; volatiles ER - TY - JOUR T1 - Symmetry-related mutants in the quinone binding sites of the bacterial reaction center - the effects of changes in charge distribution AN - 1315609966; 13773382 AB - To probe the structural elements that contribute to the functional asymmetries of the two ubiquinone sub(10) binding pockets in the reaction center of Rhodobacter capsulatus, we targeted the L212Glu-L213Asp (near Q sub(B)) and the M246Ala-M247Ala (near Q sub(A)) pairs of symmetry-related residues for site-specific mutagenesis. We have constructed site-specific mutants that eliminate the sequence differences at these positions (L212Glu-L213Asp1Ala-Ala or M246Ala-M247Ala1Glu-Asp), and have reversed that asymmetry by constructing a quadruple-mutant strain, 'RQ' (L212Glu-L213Asp-M246Ala-M247Ala1Ala-Ala-Gl u-Asp). The mutations were designed to change the charge distribution in the quinone-binding region of the reaction center; none of the strains is capable of photosynthetic growth. In photocompetent phenotypic revertants of the RQ strain, second-site mutations which affect Q sub(B) function are coupled to mutations in the Q sub(A) site which restore an Ala or substitute a Tyr at the M247 site; one strain carries an additional Met1Leu substitution at M260 near Q sub(A). All of the RQ revertants retain the engineered M246Ala1Glu mutation in the Q sub(A) site as well as the L212Ala-L213Ala mutations in the Q sub(B) site. Kinetic characterization of the RQ revertants will give us an idea of what structural and functional elements are important for restoring efficiency to electron and proton transfer pathways in the RQ RC, which is far from native. To date, these preliminary results underscore the importance of an asymmetric distribution of polar amino acids in the quinone binding pockets and its influence on the functional properties of the reaction center. JF - Photosynthesis Research AU - Hanson, Deborah K AU - Schiffer, Marianne AD - Center for Mechanistic Biology & Biotechnology, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL, 60439, USA PY - 1998 SP - 275 EP - 280 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 55 IS - 2-3 SN - 0166-8595, 0166-8595 KW - Microbiology Abstracts B: Bacteriology KW - Bacteria KW - Amino acids KW - Rhodobacter capsulatus KW - Photosynthesis KW - Protons KW - Probes KW - Mutagenesis KW - Structure-function relationships KW - Kinetics KW - Asymmetry KW - Quinone KW - Mutation KW - Revertants KW - Reaction centers KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1315609966?accountid=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=Photosynthesis+Research&rft.atitle=Symmetry-related+mutants+in+the+quinone+binding+sites+of+the+bacterial+reaction+center+-+the+effects+of+changes+in+charge+distribution&rft.au=Hanson%2C+Deborah+K%3BSchiffer%2C+Marianne&rft.aulast=Hanson&rft.aufirst=Deborah&rft.date=1998-03-01&rft.volume=55&rft.issue=2-3&rft.spage=275&rft.isbn=&rft.btitle=&rft.title=Photosynthesis+Research&rft.issn=01668595&rft_id=info:doi/10.1023%2FA%3A1005901510444 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-03-01 N1 - Last updated - 2016-01-21 N1 - SubjectsTermNotLitGenreText - Amino acids; Photosynthesis; Protons; Structure-function relationships; Kinetics; Quinone; Asymmetry; Probes; Revertants; Mutation; Mutagenesis; Reaction centers; Bacteria; Rhodobacter capsulatus DO - http://dx.doi.org/10.1023/A:1005901510444 ER - TY - JOUR T1 - Stable isotope composition of molecular oxygen in soil gas and groundwater; a potentially robust tracer for diffusion and oxygen consumption processes AN - 52609386; 1998-031709 AB - The isotopic composition of molecular O (sub 2) in soil gas from near Lincoln, Nebraska, and in groundwater from near Amarillo, Texas, two locations characterized by relatively shallow and deep unsaturated zones, is reported. The higher delta (super 18) O values in the soil gas samples are due to the effects of diffusion and soil respiration (plant root and bacterial) on the isotopic O composition, while the lower delta (super 18) O in dissolved O (sub 2) at the Texas site indicates that O (sub 2) consumption below the root zone may be due to a different fractionation factor. A model is presented for the O (sub 2) concentration and isotopic composition in soil gas using the molecular diffusion theory. JF - Geochimica et Cosmochimica Acta AU - Aggarwal, Pradeep K AU - Dillon, M A Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 577 EP - 584 PB - Pergamon, Oxford VL - 62 IS - 4 SN - 0016-7037, 0016-7037 KW - United States KW - soils KW - diffusion KW - Lincoln County Nebraska KW - oxygen KW - isotopes KW - isotope ratios KW - solutes KW - Texas KW - O-18/O-16 KW - hydrochemistry KW - stable isotopes KW - inorganic materials KW - ground water KW - carbon dioxide KW - aquifers KW - carbon KW - tracers KW - Texas Panhandle KW - soil gases KW - Nebraska KW - geochemistry KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52609386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stable+isotope+composition+of+molecular+oxygen+in+soil+gas+and+groundwater%3B+a+potentially+robust+tracer+for+diffusion+and+oxygen+consumption+processes&rft.au=Aggarwal%2C+Pradeep+K%3BDillon%2C+M+A&rft.aulast=Aggarwal&rft.aufirst=Pradeep&rft.date=1998-02-01&rft.volume=62&rft.issue=4&rft.spage=577&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2897%2900377-3 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 28 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2014-03-14 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - aquifers; carbon; carbon dioxide; diffusion; geochemistry; ground water; hydrochemistry; inorganic materials; isotope ratios; isotopes; Lincoln County Nebraska; Nebraska; O-18/O-16; oxygen; soil gases; soils; solutes; stable isotopes; Texas; Texas Panhandle; tracers; United States DO - http://dx.doi.org/10.1016/S0016-7037(97)00377-3 ER - TY - RPRT T1 - Baseline risk assessment for the quarry residuals operable unit of the Weldon Spring Site, Weldon Spring, Missouri AN - 52414634; 2000-000058 AB - The U.S. Department of Energy (DOE) is conducting cleanup activities at the Weldon Spring site, located in St. Charles County, Missouri, about 48 km (30 mi) west of St. Louis. Cleanup of the site consists of several integrated components. The quarry residuals operable unit (QROU), consisting of the Weldon Spring quarry and its surrounding area, is one of four operable units being evaluated. In accordance with requirements of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended, DOE is conducting a remedial investigation/feasibility study (RI/FS) to determine the proper response to address various contaminated media that constitute the QROU. Specifically, the operable unit consists of the following areas and media: the residual material remaining at the Weldon Spring quarry after removal of the pond water and the bulk waste; groundwater underlying the quarry and surrounding area; and other media located in the surrounding vicinity of the quarry, including surface water and sediment at Femme Osage Slough, Little Femme Osage Creek, and Femme Osage Creek. An initial evaluation of conditions at the quarry area identified remaining data requirements needed to support the conceptual site exposure and hydrogeological models. These data requirements are discussed in the RI/FS work plan issued in January 1994. Soil contamination located at a property adjacent to the quarry, referred to as Vicinity Property 9 (VP9), was originally part of the scope of the QROU, as discussed in the work plan. However, a decision was subsequently made to remediate this vicinity property as part of cleanup activities for the chemical plant operable unit, as provided for in the Record of Decision (ROD). Remediation of VP9 was completed in early 1996. Hence, this baseline risk assessment (BRA) does not address VP9. JF - Baseline risk assessment for the quarry residuals operable unit of the Weldon Spring Site, Weldon Spring, Missouri Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 117 VL - DOE/OR/21548-594 KW - United States KW - soils KW - hazardous waste KW - aquifer vulnerability KW - monitoring KW - medical geology KW - isotopes KW - Superfund KW - Missouri KW - reclamation KW - quarries KW - surface water KW - migration of elements KW - remediation KW - radioactive waste KW - ground water KW - aquifers KW - radioactive isotopes KW - decontamination KW - risk assessment KW - waste disposal KW - Saint Charles County Missouri KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52414634?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=1998-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Baseline+risk+assessment+for+the+quarry+residuals+operable+unit+of+the+Weldon+Spring+Site%2C+Weldon+Spring%2C+Missouri&rft.title=Baseline+risk+assessment+for+the+quarry+residuals+operable+unit+of+the+Weldon+Spring+Site%2C+Weldon+Spring%2C+Missouri&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98004700NEG, Springfield, VA, United States N1 - SuppNotes - Contract AC05-86OR21548 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Effects of metam sodium fumigation on soil microbial activity and community structure AN - 52099461; 2002-041841 AB - Metam sodium (MS) is a widely used soil fumigant with broad biocidal activity. The impact of MS on soil microbial community structure and function is largely unknown. We investigated the effects of fumigation with field-relevant doses of MS in soil microcosms using traditional heterotrophic activity measures (C and N mineralization), a substrate-utilization assay, and fatty acid analysis. Our results suggest that fumigation with MS results in persistent changes (at least 18 wk) in heterotrophic activity and fatty acid composition of the microbial biomass. Lack of recovery of heterotrophic activity and changes in fatty acid composition after fumigation suggest that MS has the potential to alter important microbially mediated functions such as nutrient cycling and pollutant degradation. Preliminary fatty acid data suggest that actinomycetes and other gram-positive organisms may recover preferentially after fumigation with MS. Although community fatty acid analysis shows promise as a screening tool in soil microbial toxicity studies, more detailed information can be obtained from analysis of phospholipid fatty acid (PLFA) and other specific lipid fractions. JF - Journal of Environmental Quality AU - Macalady, J L AU - Fuller, M E AU - Scow, K M Y1 - 1998/02// PY - 1998 DA - February 1998 SP - 54 EP - 63 PB - American Society of Agronomy, [and] Crop Science Society of America, [and] Soil Science Society of America, Madison, WI VL - 27 IS - 1 SN - 0047-2425, 0047-2425 KW - soils KW - experimental studies KW - fatty acids KW - principal components analysis KW - polysaccharides KW - statistical analysis KW - alkali metals KW - sodium KW - nitrogen KW - organic compounds KW - organic acids KW - cellulose KW - multivariate analysis KW - metals KW - bacteria KW - carbohydrates KW - transformations KW - metam sodium KW - filters KW - microorganisms KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52099461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Effects+of+metam+sodium+fumigation+on+soil+microbial+activity+and+community+structure&rft.au=Macalady%2C+J+L%3BFuller%2C+M+E%3BScow%2C+K+M&rft.aulast=Macalady&rft.aufirst=J&rft.date=1998-02-01&rft.volume=27&rft.issue=1&rft.spage=54&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 - 2002-01-01 N1 - Number of references - 50 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - JEVQAA N1 - SubjectsTermNotLitGenreText - alkali metals; bacteria; carbohydrates; cellulose; experimental studies; fatty acids; filters; metals; metam sodium; microorganisms; multivariate analysis; nitrogen; organic acids; organic compounds; polysaccharides; principal components analysis; sodium; soils; statistical analysis; transformations ER - TY - JOUR T1 - Stability Studies of Waste Produced in Pilot-Plant Testing using Ferrous-EDTA and Magnesium-Enhanced Lime for Combined Sulfur-Dioxide/Nitrogen Oxides Removal AN - 818833746; 13726421 AB - A pilot-plant-scale study of combined sulfur dioxide/nitrogen oxides (SO sub(2)/NO sub(x)) removal has been performed by the Dravo Lime Company at the Cincinnati Gas and Electric Company's Miami Fort Station in North Bend, Ohio. This study used Dravo's patented Thiosorbic+ lime process along with Argonne National Laboratory's (ANL's) patented process for combined SO sub(2)/NO sub(x) removal using the chelate ferrous.ethylenediaminetetraacetate (Fe.EDTA). For approximately nine months, scrubbing tests were carried out, and waste samples were collected. Waste testing at ANL involved two types of long-term chemical stability experiments. In one test, the gas-phase composition above several different samples was studied by mass spectrometry over 22 months. Unexpectedly, production of carbon dioxide and hydrogen sulfide was observed in some of the samples. The other experiment involved solid-phase leaching. Samples were stored for up to 14 months before leaching. Each leachate was tested for total Kjeldahl nitrogen and for the nitrogen-containing ions nitrite, nitrate, and ammonium. Significant amounts of ammonium ions were found in two of the samples. Total leachable nitrogen was found to stabilize after about the first 7 months of storage. JF - Water, Air, & Soil Pollution AU - Mendelsohn, M H AU - Livengood, C D AD - Energy Systems DIvision, Argonne National Laboratory, Argonne, Illinois, 60439, U.S.A Y1 - 1998/01// PY - 1998 DA - Jan 1998 SP - 105 EP - 121 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 101 IS - 1-4 SN - 0049-6979, 0049-6979 KW - Toxicology Abstracts; Environment Abstracts; Pollution Abstracts KW - Nitrate KW - Mass spectroscopy KW - Sulfur dioxide KW - USA, Ohio, Cincinnati KW - oxides KW - Chelates KW - Nitrite KW - USA, Florida, Miami KW - Ammonium KW - Ions KW - Leaching KW - Wastes KW - Nitrogen oxides KW - Hydrogen sulfide KW - Lime KW - Soil pollution KW - Photochemicals KW - USA, Ohio KW - Carbon dioxide KW - Leachates KW - Nitrogen KW - P 0000:AIR POLLUTION KW - X 24360:Metals KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/818833746?accountid=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=Water%2C+Air%2C+%26+Soil+Pollution&rft.atitle=Stability+Studies+of+Waste+Produced+in+Pilot-Plant+Testing+using+Ferrous-EDTA+and+Magnesium-Enhanced+Lime+for+Combined+Sulfur-Dioxide%2FNitrogen+Oxides+Removal&rft.au=Mendelsohn%2C+M+H%3BLivengood%2C+C+D&rft.aulast=Mendelsohn&rft.aufirst=M&rft.date=1998-01-01&rft.volume=101&rft.issue=1-4&rft.spage=105&rft.isbn=&rft.btitle=&rft.title=Water%2C+Air%2C+%26+Soil+Pollution&rft.issn=00496979&rft_id=info:doi/10.1023%2FA%3A1004958020312 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Nitrate; Ions; Ammonium; Leaching; Wastes; Hydrogen sulfide; Mass spectroscopy; Soil pollution; Sulfur dioxide; oxides; Nitrite; Carbon dioxide; Chelates; Leachates; Nitrogen; Photochemicals; Nitrogen oxides; Lime; USA, Ohio, Cincinnati; USA, Ohio; USA, Florida, Miami DO - http://dx.doi.org/10.1023/A:1004958020312 ER - TY - JOUR T1 - Integrated seismic hazard risk map of Egypt AN - 52514392; 1999-016143 AB - We applied a geographic information system approach to generate an integrated seismic hazard map for Egypt. We generated and integrated the information contained in (1) a seismic hazard map compiled from peak horizontal ground acceleration and from earthquake epicenters, (2) a fault hazard map outlining surface (from geologic maps) and subsurface (from gravity field data) fault zones proximal to earthquake epicenters, (3) an amplification map showing the distribution of thick alluvium deposits that amplify ground shaking, (4) a liquefaction map showing areas susceptible (shallow groundwater, seismically active) to soil (sand/silt) liquefaction, and (5) a population density map that shows areas subject to increased risk of loss in human life and property. Frequent and large events in the scarcely populated southern Sinai, the coastal plain of the Gulf of Aqaba, and the coastal plain of the Red Sea and the Gulf of Suez (between latitudes 26'45' and 28'15'N) pose no seismic risk. Loss of human life and property is more likely to occur in areas of moderate seismicity (210 galP), and the substitution of Li for Zr explains why atomic P commonly exceeds atomic LREE in most synthetic zircons, a feature common to many natural zircons as well. JF - Abstracts with Programs - Geological Society of America AU - Finch, R J AU - Hanchar, J M AU - Hoskin, P W O AU - Burns, P C AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 282 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - zircon group KW - silicates KW - X-ray diffraction data KW - lithium KW - alkali metals KW - mass spectra KW - zircon KW - substitution KW - phosphorus KW - crystal structure KW - phosphates KW - nesosilicates KW - xenotime KW - metals KW - orthosilicates KW - spectra KW - rare earths KW - crystal chemistry KW - synthetic materials KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52475861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Rare-earth+elements+in+synthetic+zircon%3B+the+roles+of+phosphorous+and+lithium&rft.au=Finch%2C+R+J%3BHanchar%2C+J+M%3BHoskin%2C+P+W+O%3BBurns%2C+P+C%3BAnonymous&rft.aulast=Finch&rft.aufirst=R&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=282&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, 1998 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 - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkali metals; crystal chemistry; crystal structure; lithium; mass spectra; metals; nesosilicates; orthosilicates; phosphates; phosphorus; rare earths; silicates; spectra; substitution; synthetic materials; X-ray diffraction data; xenotime; zircon; zircon group ER - TY - JOUR T1 - Contrasting modes and geometry of contact metamorphic fluid flow on the north and south sides of the Alta Stock, Utah AN - 52455702; 1999-052281 JF - Abstracts with Programs - Geological Society of America AU - Bowman, John R AU - Armstrong, Dean L AU - Cook, Stephen J AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 280 PB - Geological Society of America (GSA), Boulder, CO VL - 30 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - periclase KW - patterns KW - geologic thermometry KW - oxygen KW - numerical models KW - isotopes KW - one-dimensional models KW - isotope ratios KW - O-18/O-16 KW - simulation KW - metamorphism KW - stable isotopes KW - two-dimensional models KW - temperature KW - contact metamorphism KW - metamorphic rocks KW - aureoles KW - marbles KW - oxides KW - Utah KW - Alta Stock KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52455702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Contrasting+modes+and+geometry+of+contact+metamorphic+fluid+flow+on+the+north+and+south+sides+of+the+Alta+Stock%2C+Utah&rft.au=Bowman%2C+John+R%3BArmstrong%2C+Dean+L%3BCook%2C+Stephen+J%3BAnonymous&rft.aulast=Bowman&rft.aufirst=John&rft.date=1998-01-01&rft.volume=30&rft.issue=7&rft.spage=280&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, 1998 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 - 1999-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Alta Stock; aureoles; contact metamorphism; geologic thermometry; isotope ratios; isotopes; marbles; metamorphic rocks; metamorphism; numerical models; O-18/O-16; one-dimensional models; oxides; oxygen; patterns; periclase; simulation; stable isotopes; temperature; two-dimensional models; United States; Utah ER - TY - JOUR T1 - High-pressure melting of deep mantle and core materials AN - 52438357; 1999-061734 JF - Reviews in Mineralogy AU - Shen, Guoyin AU - Heinz, Dion L A2 - Hemley, Russell J. Y1 - 1998 PY - 1998 DA - 1998 SP - 369 EP - 396 PB - Mineralogical Society of America, Washington, DC VL - 37 SN - 0275-0279, 0275-0279 KW - segregation KW - technology KW - iron oxides KW - silicon dioxide KW - perovskite KW - mantle KW - techniques KW - perovskite structure KW - core-mantle boundary KW - iron KW - data management KW - lower mantle KW - theoretical studies KW - melting KW - materials KW - aluminum oxides KW - oxides KW - thermodynamic properties KW - geochemistry KW - shock waves KW - pressure KW - differentiation KW - information management KW - high pressure KW - boundary interactions KW - outer core KW - models KW - iron sulfides KW - metals KW - magmas KW - core KW - anvil cells KW - sulfides KW - magnesiowustite KW - geophysics KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52438357?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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&rft.atitle=High-pressure+melting+of+deep+mantle+and+core+materials&rft.au=Shen%2C+Guoyin%3BHeinz%2C+Dion+L&rft.aulast=Shen&rft.aufirst=Guoyin&rft.date=1998-01-01&rft.volume=37&rft.issue=&rft.spage=369&rft.isbn=0939950480&rft.btitle=&rft.title=Reviews+in+Mineralogy&rft.issn=02750279&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 116 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RMINDF N1 - SubjectsTermNotLitGenreText - aluminum oxides; anvil cells; boundary interactions; core; core-mantle boundary; data management; differentiation; geochemistry; geophysics; high pressure; information management; iron; iron oxides; iron sulfides; lower mantle; magmas; magnesiowustite; mantle; materials; melting; metals; models; outer core; oxides; perovskite; perovskite structure; pressure; segregation; shock waves; silicon dioxide; sulfides; techniques; technology; theoretical studies; thermodynamic properties ER - TY - JOUR T1 - Zr and Mo isotopes in single presolar graphite grains; a record of stellar nucleosynthesis AN - 52375904; 2000-030170 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nicolussi, G K AU - Pellin, M J AU - Davis, A M AU - Lewis, R S AU - Clayton, R N AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 PB - Lunar and Planetary Science Conference, Houston, TX VL - 29 KW - CHARISMA KW - stony meteorites KW - isotopes KW - mass spectra KW - zirconium KW - carbides KW - Murchison Meteorite KW - meteorites KW - molybdenum KW - alloys KW - spectra KW - chondrites KW - geochemistry KW - experimental studies KW - isotope ratios KW - cosmochemistry KW - native elements KW - carbonaceous chondrites KW - graphite KW - cosmic dust KW - grains KW - metals KW - CM chondrites KW - instruments KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52375904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Zr+and+Mo+isotopes+in+single+presolar+graphite+grains%3B+a+record+of+stellar+nucleosynthesis&rft.au=Nicolussi%2C+G+K%3BPellin%2C+M+J%3BDavis%2C+A+M%3BLewis%2C+R+S%3BClayton%2C+R+N%3BAnonymous&rft.aulast=Nicolussi&rft.aufirst=G&rft.date=1998-01-01&rft.volume=29&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/ LA - English DB - GeoRef N1 - Conference title - 29th lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Lunar and Planetary Institute, Houston, TX, United States N1 - Date revised - 2000-01-01 N1 - Number of references - 15 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Abstract number 1415 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alloys; carbides; carbonaceous chondrites; CHARISMA; chondrites; CM chondrites; cosmic dust; cosmochemistry; experimental studies; geochemistry; grains; graphite; instruments; isotope ratios; isotopes; mass spectra; metals; meteorites; molybdenum; Murchison Meteorite; native elements; spectra; stony meteorites; zirconium ER - TY - JOUR T1 - Tunnel valleys and other glacial features near Anoka, Minnesota AN - 52364720; 2000-034287 JF - Report of Investigations - Minnesota Geological Survey AU - Quinn, John J A2 - Patterson, Carrie J. A2 - Wright, H. E., Jr. Y1 - 1998 PY - 1998 DA - 1998 SP - 27 EP - 34 PB - Minnesota Geological Survey, St. Paul, MN SN - 0076-9177, 0076-9177 KW - upper Wisconsinan KW - United States KW - erosion KW - tunnel valleys KW - Anoka County Minnesota KW - landforms KW - Wisconsinan KW - upper Pleistocene KW - Cenozoic KW - glacial erosion KW - topography KW - Hennepin County Minnesota KW - Minnesota KW - Quaternary KW - valleys KW - cartography KW - glacial features KW - models KW - eskers KW - fluvial features KW - Pleistocene KW - glacial lobes KW - Des Moines Lobe KW - facies KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52364720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Report+of+Investigations+-+Minnesota+Geological+Survey&rft.atitle=Tunnel+valleys+and+other+glacial+features+near+Anoka%2C+Minnesota&rft.au=Quinn%2C+John+J&rft.aulast=Quinn&rft.aufirst=John&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Report+of+Investigations+-+Minnesota+Geological+Survey&rft.issn=00769177&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 35 N1 - PubXState - MN N1 - Document feature - geol. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - MGSRAB N1 - SubjectsTermNotLitGenreText - Anoka County Minnesota; cartography; Cenozoic; Des Moines Lobe; erosion; eskers; facies; fluvial features; glacial erosion; glacial features; glacial lobes; Hennepin County Minnesota; landforms; Minnesota; models; Pleistocene; Quaternary; topography; tunnel valleys; United States; upper Pleistocene; upper Wisconsinan; valleys; Wisconsinan ER - TY - BOOK T1 - Collecting real-time soil moisture profiles in the vadose zone AN - 52354891; 2000-042859 JF - First international conference on Site characterization AU - Rose, C M AU - Armstrong, S C AU - Walker, J L AU - Young, G N AU - Burton, J C A2 - Robertson, Peter K. A2 - Mayne, Paul W. Y1 - 1998 PY - 1998 DA - 1998 PB - A. A. Balkema, Rotterdam SN - 9054109394 KW - United States KW - soils KW - soil profiles KW - penetration tests KW - South Carolina KW - dielectric properties KW - moisture KW - cone penetration tests KW - geophysical methods KW - unsaturated zone KW - Savannah River Site KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52354891?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=Rose%2C+C+M%3BArmstrong%2C+S+C%3BWalker%2C+J+L%3BYoung%2C+G+N%3BBurton%2C+J+C&rft.aulast=Rose&rft.aufirst=C&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9054109394&rft.btitle=Collecting+real-time+soil+moisture+profiles+in+the+vadose+zone&rft.title=Collecting+real-time+soil+moisture+profiles+in+the+vadose+zone&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First international conference on Site characterization N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 5 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - QuickSite (super SM) , the Argonne expedited site characterization methodology AN - 52351291; 2000-042782 JF - First international conference on Site characterization AU - Burton, J C AU - Meyer, W T A2 - Robertson, Peter K. A2 - Mayne, Paul W. Y1 - 1998 PY - 1998 DA - 1998 PB - A. A. Balkema, Rotterdam SN - 9054109394 KW - United States KW - QuickSite KW - DuPage County Illinois KW - monitoring KW - Illinois KW - site exploration KW - Ogallala Aquifer KW - characterization KW - pollution KW - Texas KW - Carson County Texas KW - Argonne Illinois KW - ground water KW - aquifers KW - Pantex Plant KW - perched aquifers KW - Argonne National Laboratory KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52351291?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=Burton%2C+J+C%3BMeyer%2C+W+T&rft.aulast=Burton&rft.aufirst=J&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9054109394&rft.btitle=QuickSite+%28super+SM%29+%2C+the+Argonne+expedited+site+characterization+methodology&rft.title=QuickSite+%28super+SM%29+%2C+the+Argonne+expedited+site+characterization+methodology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First international conference on Site characterization N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 5 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Correct use of cone penetrometer sensors to predict subsurface conditions AN - 52346242; 2000-042954 JF - First international conference on Site characterization AU - Walker, J L AU - Rose, C M AU - Armstrong, S C AU - Burton, J C A2 - Robertson, Peter K. A2 - Mayne, Paul W. Y1 - 1998 PY - 1998 DA - 1998 PB - A. A. Balkema, Rotterdam SN - 9054109394 KW - United States KW - chlorinated hydrocarbons KW - penetration tests KW - laser methods KW - South Carolina KW - site exploration KW - cone penetration tests KW - characterization KW - pollution KW - drinking water KW - carbon tetrachloride KW - case studies KW - organic compounds KW - Platte County Nebraska KW - subsurface geologic method KW - Humphrey Nebraska KW - halogenated hydrocarbons KW - water wells KW - oil storage KW - Nebraska KW - storage KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52346242?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=Walker%2C+J+L%3BRose%2C+C+M%3BArmstrong%2C+S+C%3BBurton%2C+J+C&rft.aulast=Walker&rft.aufirst=J&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=9054109394&rft.btitle=Correct+use+of+cone+penetrometer+sensors+to+predict+subsurface+conditions&rft.title=Correct+use+of+cone+penetrometer+sensors+to+predict+subsurface+conditions&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First international conference on Site characterization N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 4 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 ER - TY - BOOK T1 - Field demonstrations of multiple bioslurry treatment technologies for explosives-contaminated soils AN - 52313999; 2000-065561 JF - First international conference on Remediation of chlorinated and recalcitrant compounds AU - Hampton, Mark L AU - Manning, John F A2 - Wickramanayake, Godage B. A2 - Hinchee, Robert E. Y1 - 1998 PY - 1998 DA - 1998 PB - Battelle Press, Columbus, OH SN - 1574770616 KW - United States KW - soils KW - experimental studies KW - Iowa Army Ammunition Plant KW - degradation KW - pollutants KW - pollution KW - trinitrotoluene KW - techniques KW - RDX KW - bioremediation KW - Iowa KW - environmental analysis KW - cost KW - remediation KW - aerobic environment KW - triazines KW - organic compounds KW - explosives KW - anaerobic environment KW - military facilities KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52313999?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=Hampton%2C+Mark+L%3BManning%2C+John+F&rft.aulast=Hampton&rft.aufirst=Mark&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1574770616&rft.btitle=Field+demonstrations+of+multiple+bioslurry+treatment+technologies+for+explosives-contaminated+soils&rft.title=Field+demonstrations+of+multiple+bioslurry+treatment+technologies+for+explosives-contaminated+soils&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - Number of references - 2 N1 - PubXState - OH N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - New constraints on the Quaternary paleoclimate of North Africa AN - 52285860; 2001-002321 JF - Special Publication - Geological Survey of Egypt AU - Sultan, M AU - Sturchio, Neil C AU - Hassan, F A AU - Hamdan, M A AU - Mahmod, A AU - El Alfy, Z AU - Stein, T AU - Naim, Gaber M Y1 - 1998 PY - 1998 DA - 1998 SP - 809 EP - 820 PB - Egyptian Geological Survey and Mining Authority, Ministry of Industry and Mineral Wealth, Cairo VL - 75 KW - chemically precipitated rocks KW - Quaternary KW - oxygen KW - North Africa KW - isotopes KW - isotope ratios KW - Nubian Aquifer KW - Western Desert KW - O-18/O-16 KW - new data KW - paleoclimatology KW - stable isotopes KW - ground water KW - aquifers KW - Egypt KW - Cenozoic KW - sedimentary rocks KW - D/H KW - hydrogen KW - Africa KW - tufa KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52285860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Special+Publication+-+Geological+Survey+of+Egypt&rft.atitle=New+constraints+on+the+Quaternary+paleoclimate+of+North+Africa&rft.au=Sultan%2C+M%3BSturchio%2C+Neil+C%3BHassan%2C+F+A%3BHamdan%2C+M+A%3BMahmod%2C+A%3BEl+Alfy%2C+Z%3BStein%2C+T%3BNaim%2C+Gaber+M&rft.aulast=Sultan&rft.aufirst=M&rft.date=1998-01-01&rft.volume=75&rft.issue=&rft.spage=809&rft.isbn=&rft.btitle=&rft.title=Special+Publication+-+Geological+Survey+of+Egypt&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Egyptian Geological Survey centennial conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 28 N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - #04104 N1 - SubjectsTermNotLitGenreText - Africa; aquifers; Cenozoic; chemically precipitated rocks; D/H; Egypt; ground water; hydrogen; isotope ratios; isotopes; new data; North Africa; Nubian Aquifer; O-18/O-16; oxygen; paleoclimatology; Quaternary; sedimentary rocks; stable isotopes; tufa; Western Desert ER - TY - RPRT T1 - Applying separations science to waste problems AN - 52284371; 2001-001138 AB - The Chemical Technology Division, recognized worldwide for its expertise in separations science, specializes in developing innovative processes for treating contaminated soils, wastewater, solid nuclear wastes, and other liquid and solid waste. One such process involves grinding of solid waste to an average particle size of about one micrometer, followed by selective partitioning of the ultrafine particles between two immiscible aqueous phases. This aqueous biphasic separation process will recover most of the contaminants in a concentrate that has a volume of only a few percent of the initial waste volume. JF - Applying separations science to waste problems AU - Laidler, J Y1 - 1998 PY - 1998 DA - 1998 SP - 7 KW - soils KW - waste water KW - pollutants KW - separation KW - pollution KW - power plants KW - grinding KW - radioactive waste KW - waste management KW - nuclear energy KW - nuclear facilities KW - waste disposal KW - solid waste KW - particles KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52284371?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=Laidler%2C+J&rft.aulast=Laidler&rft.aufirst=J&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Applying+separations+science+to+waste+problems&rft.title=Applying+separations+science+to+waste+problems&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number ADA350678NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31-109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Thermoelastic behavior of platinum and MgO in the laser-heated diamond anvil cell AN - 52248996; 2001-027397 JF - Eos, Transactions, American Geophysical Union AU - Kavner, A AU - Duffy, T S AU - Heinz, D L AU - Shen, G AU - Anonymous Y1 - 1998 PY - 1998 DA - 1998 SP - 163 PB - American Geophysical Union, Washington, DC VL - 79 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - experimental studies KW - P-V-T-paths KW - laser methods KW - in situ KW - thermoelastic properties KW - mantle KW - platinum group KW - measurement KW - magnesium oxide KW - laboratory studies KW - platinum KW - metals KW - volume KW - anvil cells KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52248996?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Thermoelastic+behavior+of+platinum+and+MgO+in+the+laser-heated+diamond+anvil+cell&rft.au=Kavner%2C+A%3BDuffy%2C+T+S%3BHeinz%2C+D+L%3BShen%2C+G%3BAnonymous&rft.aulast=Kavner&rft.aufirst=A&rft.date=1998-01-01&rft.volume=79&rft.issue=17%2C+Suppl.&rft.spage=163&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 1998 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - anvil cells; experimental studies; in situ; laboratory studies; laser methods; magnesium oxide; mantle; measurement; metals; P-T conditions; P-V-T-paths; platinum; platinum group; thermoelastic properties; volume ER - TY - JOUR T1 - Conversion of domestic water supply source from dolomite well water to Lake Michigan water at Argonne National Laboratory, Argonne, Illinois AN - 50918554; 2000-030856 JF - Technical Publication Series - American Water Resources Association AU - Kolzow, Ronald G AU - Piorkowski, Robert E A2 - Durrans, S. Rocky A2 - Nix, Stephan J. Y1 - 1998 PY - 1998 DA - 1998 SP - 56 PB - AWRA - American Water Resources Association, Bethesda, MD VL - TPS IS - 98-3 SN - 0731-9789, 0731-9789 KW - United States KW - halides KW - water quality KW - DuPage County Illinois KW - Illinois KW - sulfates KW - copper KW - waste water KW - pollutants KW - pumping KW - pollution KW - dolostone KW - Argonne Illinois KW - ground water KW - sedimentary rocks KW - metals KW - chlorides KW - Argonne National Laboratory KW - carbonate rocks KW - water wells KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50918554?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Technical+Publication+Series+-+American+Water+Resources+Association&rft.atitle=Conversion+of+domestic+water+supply+source+from+dolomite+well+water+to+Lake+Michigan+water+at+Argonne+National+Laboratory%2C+Argonne%2C+Illinois&rft.au=Kolzow%2C+Ronald+G%3BPiorkowski%2C+Robert+E&rft.aulast=Kolzow&rft.aufirst=Ronald&rft.date=1998-01-01&rft.volume=TPS&rft.issue=98-3&rft.spage=56&rft.isbn=&rft.btitle=&rft.title=Technical+Publication+Series+-+American+Water+Resources+Association&rft.issn=07319789&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Annual water resources conference of the American Water Resources Association N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - MD N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Argonne Illinois; Argonne National Laboratory; carbonate rocks; chlorides; copper; dolostone; DuPage County Illinois; ground water; halides; Illinois; metals; pollutants; pollution; pumping; sedimentary rocks; sulfates; United States; waste water; water quality; water wells ER - TY - BOOK T1 - A comparison of in situ soil mixing treatments AN - 50316418; 2000-079487 JF - First international conference on Remediation of chlorinated and recalcitrant compounds AU - Day, Steven R AU - Moos, Larry A2 - Wickramanayake, Godage B. A2 - Hinchee, Robert E. Y1 - 1998 PY - 1998 DA - 1998 PB - Battelle Press, Columbus, OH SN - 1574770608 KW - chlorinated hydrocarbons KW - soil vapor extraction KW - trichloroethane KW - chemical waste KW - humic acids KW - remediation KW - radioactive waste KW - solvents KW - decontamination KW - halogenated hydrocarbons KW - Argonne National Laboratory KW - chloroform KW - soils KW - biodegradation KW - in situ KW - injection KW - soil treatment KW - cost KW - carbon tetrachloride KW - volatiles KW - organic compounds KW - organic acids KW - humic substances KW - volatile organic compounds KW - nuclear facilities KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50316418?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=Day%2C+Steven+R%3BMoos%2C+Larry&rft.aulast=Day&rft.aufirst=Steven&rft.date=1998-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=1574770608&rft.btitle=A+comparison+of+in+situ+soil+mixing+treatments&rft.title=A+comparison+of+in+situ+soil+mixing+treatments&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - First international conference on Remediation of chlorinated and recalcitrant compounds N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - OH N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The low-temperature structure and phase transition of hemimorphite, Zn (sub 4) Si (sub 2) O (sub 7) (OH) (sub 2) . H (sub 2) O AN - 1773797592; 2016-022613 AB - The low-temperature structure of hemimorphite, Zn (sub 4) Si (sub 2) O (sub 7) (OH) (sub 2) . H (sub 2) O, was investigated by neutron diffraction at 20 K using the "Time-Of-Flight" (TOF) method with a four-circle single-crystal diffractometer and a position-sensitive detector at the Intense Pulsed Neutron Source (IPNS) at the Argonne National Laboratory, IL. The reversible second-order phase transition, which had previously been determined at 98(2) K by optical measurements, was confirmed by two TOF neutron histograms acquired at 20 K and 120 K. Whereas the 20 K histogram showed superlattice reflections hkl with k, l = n/2 and intensities up to 30 sigma (I), these reflections were absent in the 120 K data set. In contrast to the room-temperature structure of hemimorphite (Imm2, a approximately 8.37 Aa, b approximately 10.73 Aa, c approximately 5.12 Aa), the additional reflections of the low-temperature structure lead to a supercell with a = 8.354(1) Aa, b = 21.519(4) Aa, c = 10.240(1) Aa. According to the general reflection conditions, the low-temperature superstructure of hemimorphite was refined in space group Abm2 (= Acm2 = Aem2) with Rw(F (super 2) ) = 0.058. Whereas the room-temperature structure shows dynamically disordered hydroxyl and H (sub 2) O groups, the low-temperature structure is characterized by an ordered arrangement of non-equivalent hydroxyl groups and rotated H (sub 2) O molecules linked by an enhanced H bond system along the channels of the structure, thus leading to a doubled c lattice parameter. A partially ordered arrangement of the channels across the structure (using the [1/2, 1/4, 1/4] or [1/2, 1/4, -1/4] translation vectors) results in doubling of the b lattice parameter. According to space group symmetry and additional non-space group reflection conditions 0kl with k + l = 4n and h00 with h = 2n, an order/dis-order (OD) structure model with microdomains and twinning is proposed. JF - Zeitschrift fuer Kristallographie AU - Libowitzky, E AU - Schultz, A J AU - Young, D M Y1 - 1998 PY - 1998 DA - 1998 SP - 659 EP - 668 PB - De Gruyter for Oldenbourg, Munich VL - 213 IS - 12 SN - 0044-2968, 0044-2968 KW - sorosilicates KW - silicates KW - experimental studies KW - refinement KW - hemimorphite KW - crystal structure KW - temperature KW - laboratory studies KW - phase equilibria KW - orthosilicates KW - neutron diffraction data KW - low temperature KW - chemical composition KW - formula KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1773797592?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Zeitschrift+fuer+Kristallographie&rft.atitle=The+low-temperature+structure+and+phase+transition+of+hemimorphite%2C+Zn+%28sub+4%29+Si+%28sub+2%29+O+%28sub+7%29+%28OH%29+%28sub+2%29+.+H+%28sub+2%29+O&rft.au=Libowitzky%2C+E%3BSchultz%2C+A+J%3BYoung%2C+D+M&rft.aulast=Libowitzky&rft.aufirst=E&rft.date=1998-01-01&rft.volume=213&rft.issue=12&rft.spage=659&rft.isbn=&rft.btitle=&rft.title=Zeitschrift+fuer+Kristallographie&rft.issn=00442968&rft_id=info:doi/10.1524%2Fzkri.1998.213.12.659 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Walter de Gruyter GmbH, Berlin, Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 19 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - chemical composition; crystal structure; experimental studies; formula; hemimorphite; laboratory studies; low temperature; neutron diffraction data; orthosilicates; phase equilibria; refinement; silicates; sorosilicates; temperature DO - http://dx.doi.org/10.1524/zkri.1998.213.12.659 ER - TY - JOUR T1 - Recovery of fuels and chemicals through catalytic pyrolysis of plastic wastes AN - 17269007; 4567904 AB - The effects of various promoted and unpromoted mixed oxide catalysts on yields and compositions of liquid organic products as measured in a small laboratory pyrolysis reactor are reported. While such small-scale results do not accurately predict process plant yields, they provide a useful reference in preliminary economic evaluations and in planning larger-scale tests. Therefore, on the basis of laboratory results, a commercial-scale catalytic pyrolysis plant for the production of synthetic crude oil was simulated by using Aspen Plus and the economics were developed. Depending on certain assumptions, such a process could be profitable. To test the possibility of producing chemicals, a separations plant was added. Simulation results again suggested potential economic viability. JF - Environmental Progress AU - McIntosh, MJ AU - Arzoumanidis, G G AU - Brockmeier, F E AD - Energy Systems Division, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1998 PY - 1998 DA - 1998 SP - 19 EP - 23 PB - American Institute of Chemical Engineers VL - 17 IS - 1 SN - 0278-4491, 0278-4491 KW - Pollution Abstracts KW - Chemicals KW - Fuels KW - Materials recovery KW - Waste management KW - Pyrolysis KW - Economics KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17269007?accountid=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+Progress&rft.atitle=Recovery+of+fuels+and+chemicals+through+catalytic+pyrolysis+of+plastic+wastes&rft.au=McIntosh%2C+MJ%3BArzoumanidis%2C+G+G%3BBrockmeier%2C+F+E&rft.aulast=McIntosh&rft.aufirst=MJ&rft.date=1998-01-01&rft.volume=17&rft.issue=1&rft.spage=19&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 - 2006-11-01 N1 - Last updated - 2011-12-13 N1 - SubjectsTermNotLitGenreText - Economics; Fuels; Materials recovery; Chemicals; Pyrolysis; Waste management ER - TY - JOUR T1 - Phosphate ceramic process for macroencapsulation and stabilization of low- level debris wastes AN - 17130985; 4436286 AB - Across the DOE complex, large quantities of contaminated debris and irradiated lead bricks have been accumulated for disposal. Under the US Environmental Protection Agency's Alternative Treatment Standards, the preferred method of disposal of these wastes is macroencapsulation. Chemically bonded phosphate ceramic (CBPC) is a novel binder that was developed at Argonne National Laboratory to stabilize and solidify various low-level mixed wastes. This binder is extremely strong, dense, and impervious to water. In this investigation, CBPC has been used to demonstrate macroencapsulation of various contaminated debris wastes, including cryofractured debris, lead bricks, lead-lined plastic gloves, and mercury-contaminated crushed glass. This paper describes the fabrication of the waste forms, as well as the results of various characterizations performed on the waste forms. The results show that the simple and low-cost CBPC is an excellent material system for the macroencapsulation of debris wastes. JF - Waste Management AU - Singh, D AU - Wagh, A S AU - Tlustochowicz, M AU - Jeong, SY AD - Energy Technology Division, Argonne National Laboratory Argonne, IL 60439, USA, dileep_singh@qmgate.anl.gov Y1 - 1998 PY - 1998 DA - 1998 SP - 135 EP - 143 VL - 18 IS - 2 SN - 0956-053X, 0956-053X KW - macroencapsulation KW - Pollution Abstracts KW - Economics KW - Hazardous wastes KW - Waste management KW - Technology KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17130985?accountid=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=Waste+Management&rft.atitle=Phosphate+ceramic+process+for+macroencapsulation+and+stabilization+of+low-+level+debris+wastes&rft.au=Singh%2C+D%3BWagh%2C+A+S%3BTlustochowicz%2C+M%3BJeong%2C+SY&rft.aulast=Singh&rft.aufirst=D&rft.date=1998-01-01&rft.volume=18&rft.issue=2&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Waste+Management&rft.issn=0956053X&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 - Economics; Technology; Hazardous wastes; Waste management ER - TY - JOUR T1 - Anaerobic biodegradation of explosives and related compounds by sulfate-reducing and methanogenic bacteria: A review AN - 16528229; 4336448 AB - In recent years, research on microbial degradation of explosives and nitroaromatic compounds has increased. Most studies of the microbial metabolism of nitroaromatic compounds have used aerobic microorganisms. Ecological observations suggest that sulfate-reducing and methanogenic bacteria might metabolize nitroaromatic compounds under anaerobic conditions if appropriate electron donors and electron acceptors are present in the environment, but this ability had not been demonstrated until recently. Few review papers exist, and those deal mainly with aerobic bacterial degradation of explosives; none deals with anaerobic bacteria. In this paper, we review the anaerobic metabolic processes in the degradation of explosives and nitroaromatic compounds under sulfate-reducing and methanogenic conditions. JF - Bioresource Technology AU - Boopathy, R AU - Kulpa, C F AU - Manning, J AD - Environmental Research Division, Building 203, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1998/01// PY - 1998 DA - Jan 1998 SP - 81 EP - 89 VL - 63 IS - 1 SN - 0960-8524, 0960-8524 KW - nitroaromatic compounds KW - Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Agricultural and Environmental Biotechnology Abstracts; Pollution Abstracts KW - A 01016:Microbial degradation KW - W2 32000:General topics and reviews KW - W2 32510:Waste treatment, environment, pollution KW - W 30965:Miscellaneous, Reviews KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16528229?accountid=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=Bioresource+Technology&rft.atitle=Anaerobic+biodegradation+of+explosives+and+related+compounds+by+sulfate-reducing+and+methanogenic+bacteria%3A+A+review&rft.au=Boopathy%2C+R%3BKulpa%2C+C+F%3BManning%2C+J&rft.aulast=Boopathy&rft.aufirst=R&rft.date=1998-01-01&rft.volume=63&rft.issue=1&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Bioresource+Technology&rft.issn=09608524&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 - Biotransformation of explosives by anaerobic consortia in liquid culture and in soil slurry AN - 16527908; 4340620 AB - A laboratory study was conducted to study the feasibility of removing explosives in contaminated soil under anaerobic conditions. Anaerobic enrichment cultures were prepared from soil samples under various electron-accepting conditions, namely, sulfate-reducing, methanogenic, and nitrate-reducing conditions. The sulfate-reducing condition was very effective in removing all of the explosive compounds from the soil. The sulfate-reducing consortium removed 100% of 2,4,6-trinitrotoluene (TNT) and 1,3,5-trinitrobenzene (TNB) within 10-15 days of incubation and removed 75 to 95% of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraazocine (HMX), within 21 days of incubation. The consortium used explosive compounds as the nitrogen source, however, it did not use these compounds as the sole carbon source. The various metabolites obtained from TNT metabolism were 4-amino-2,6-dinitrotoluene (4-A-2,6-DNT), 2,4-diamino-6-nitrotoluene (2,4-D-6-NT), and 2-methyl pentanoic acid. This sulfate-reducing consortium was further studied for its usefulness in removing TNT at the contaminated site. The results showed that the consortium can remove TNT under 5% and 10% soil slurry conditions. This laboratory study demonstrated that under anaerobic conditions, sulfate-reducing bacteria can be useful in the bioremediation of contaminated soil with TNT and other explosives. JF - International Biodeterioration & Biodegradation AU - Boopathy, R AU - Manning, J AU - Kulpa, C F AD - Environmental Research Division, Building 203, Argonne National Laboratory, Argonne, IL 60439, USA, ramaraj-boopathy@qmgate.anl.gov Y1 - 1998 PY - 1998 DA - 1998 SP - 67 EP - 74 VL - 41 IS - 1 SN - 0964-8305, 0964-8305 KW - Biotechnology and Bioengineering Abstracts; Pollution Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Agricultural and Environmental Biotechnology Abstracts KW - P 5000:LAND POLLUTION KW - A 01016:Microbial degradation KW - W2 32510:Waste treatment, environment, pollution KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16527908?accountid=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=International+Biodeterioration+%26+Biodegradation&rft.atitle=Biotransformation+of+explosives+by+anaerobic+consortia+in+liquid+culture+and+in+soil+slurry&rft.au=Boopathy%2C+R%3BManning%2C+J%3BKulpa%2C+C+F&rft.aulast=Boopathy&rft.aufirst=R&rft.date=1998-01-01&rft.volume=41&rft.issue=1&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=International+Biodeterioration+%26+Biodegradation&rft.issn=09648305&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 - Magnetically assisted chemical separation process AN - 13612024; 199805962 AB - The magnetically assisted chemical separation (MACS) process for treatment of industrial process solutions and waste streams is described. The process provided a more cost-effective, efficient and environmentally acceptable method for removing hazardous metals and radionuclides from waste streams. The flowsheet and operating principles of the MACS process are discussed. Application of the process to radionuclide separation, hazardous metal separation and magnetic filtration is described. JF - Filtration & Separation AU - Nunez, L AU - Kaminski, MD AD - Argonne National Laboratory, Ill. Y1 - 1998 PY - 1998 DA - 1998 SP - 349 EP - 352 VL - 35 IS - 4 SN - 0015-1882, 0015-1882 KW - Hazard KW - Aqualine Abstracts KW - AQ 00007:Industrial Effluents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13612024?accountid=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=Filtration+%26+Separation&rft.atitle=Magnetically+assisted+chemical+separation+process&rft.au=Nunez%2C+L%3BKaminski%2C+MD&rft.aulast=Nunez&rft.aufirst=L&rft.date=1998-01-01&rft.volume=35&rft.issue=4&rft.spage=349&rft.isbn=&rft.btitle=&rft.title=Filtration+%26+Separation&rft.issn=00151882&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Repression of c-myc gene expression by the thiol and disulfide forms of the cytoprotector amifostine. AN - 79538642; 9450496 AB - The clinically approved cytoprotector amifostine, designated WR-2721, [S-2-(3-aminopropylamino)ethylphosphorothioic acid], protects against both radiation and drug-induced mutagenesis in animal systems. These effects extend over a wide concentration range making amifostine a strong candidate for evaluation as a possible cancer chemopreventive agent. To better identify and develop potential intermediate biomarkers for chemoprevention at the molecular level we applied the technique of differential display RT-PCR to assess the effects of both the thiol (SH), i.e. WR1065 and the disulfide (SS), i.e. WR-33278, metabolites of amifostine on gene expression in CHO-AA8 cells. Cells were exposed to either 40 microM or 4 mM of each agent for 30 min, and subsequent changes in gene expression were identified and contrasted to that found in corresponding untreated control cells. One band that showed a differential response was sequenced and was found to have 78% homology with a segment of the human pHL-1 cDNA clone contained in GenBank. This clone contains a COX III mitochondrial DNA insert and two exons of human c-myc. Northern blot analyses were performed by using the cloned human c-myc exon 1 probe to confirm whether c-myc gene expression was affected. Repression of c-myc expression was observed under all of the conditions evaluated. An exposure of cells to 40 microM of the disulfide form of amifostine was the most effective in repressing c-myc, i.e. 27% of control level. A concentration of 4 mM of the disulfide form reduced gene expression to 45% of the control level, while the thiol form was less effective, with 4 mM and 40 microM concentrations reducing c-myc gene expression to 65% and 46% of control levels, respectively. JF - Carcinogenesis AU - Liu, S C AU - Murley, J S AU - Woloschak, G AU - Grdina, D J AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439, USA. Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 2457 EP - 2459 VL - 18 IS - 12 SN - 0143-3334, 0143-3334 KW - Disulfides KW - 0 KW - RNA, Messenger KW - Sulfhydryl Compounds KW - Amifostine KW - M487QF2F4V KW - Index Medicus KW - Oxidation-Reduction KW - Animals KW - Down-Regulation KW - CHO Cells KW - Gene Expression Regulation -- drug effects KW - RNA, Messenger -- genetics KW - Cricetinae KW - Amifostine -- pharmacology KW - Amifostine -- chemistry KW - Genes, myc UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79538642?accountid=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=Carcinogenesis&rft.atitle=Repression+of+c-myc+gene+expression+by+the+thiol+and+disulfide+forms+of+the+cytoprotector+amifostine.&rft.au=Liu%2C+S+C%3BMurley%2C+J+S%3BWoloschak%2C+G%3BGrdina%2C+D+J&rft.aulast=Liu&rft.aufirst=S&rft.date=1997-12-01&rft.volume=18&rft.issue=12&rft.spage=2457&rft.isbn=&rft.btitle=&rft.title=Carcinogenesis&rft.issn=01433334&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1998-02-11 N1 - Date created - 1998-02-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - The nature and fate of natural resins in the geosphere; VII, NMR and Py-GC-MS characterization of soluble labdanoid polymers, isolated from Holocene class I resins AN - 52609842; 1998-029278 JF - Organic Geochemistry AU - Clifford, David J AU - Hatcher, Patrick G AU - Botto, Robert E AU - Muntean, John V AU - Michels, Beverly AU - Anderson, Ken B Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 449 EP - 464 PB - Pergamon, Oxford-New York VL - 27 IS - 7-8 SN - 0146-6380, 0146-6380 KW - maturity KW - resins KW - molecular weight KW - East Africa KW - gas chromatograms KW - characterization KW - mass spectra KW - Colombia KW - NMR spectra KW - labdanoids KW - Kenya KW - pyrolysis KW - macerals KW - spectra KW - polymers KW - exinite KW - organic minerals KW - Mombasa Kenya KW - Santander Colombia KW - resinite KW - South America KW - amber KW - Africa KW - instruments KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52609842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Organic+Geochemistry&rft.atitle=The+nature+and+fate+of+natural+resins+in+the+geosphere%3B+VII%2C+NMR+and+Py-GC-MS+characterization+of+soluble+labdanoid+polymers%2C+isolated+from+Holocene+class+I+resins&rft.au=Clifford%2C+David+J%3BHatcher%2C+Patrick+G%3BBotto%2C+Robert+E%3BMuntean%2C+John+V%3BMichels%2C+Beverly%3BAnderson%2C+Ken+B&rft.aulast=Clifford&rft.aufirst=David&rft.date=1997-12-01&rft.volume=27&rft.issue=7-8&rft.spage=449&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01466380 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Africa; amber; characterization; Colombia; East Africa; exinite; gas chromatograms; instruments; Kenya; labdanoids; macerals; mass spectra; maturity; molecular weight; Mombasa Kenya; NMR spectra; organic minerals; polymers; pyrolysis; resinite; resins; Santander Colombia; South America; spectra ER - TY - JOUR T1 - Fluxes of methane between landfills and the atmosphere; natural and engineered controls AN - 52587849; 1998-042625 JF - Soil Use and Management AU - Bogner, J AU - Meadows, M AU - Czepiel, P AU - Smith, K Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 268 EP - 277 PB - Blackwell, Oxford VL - 13 IS - 4, Supplement SN - 0266-0032, 0266-0032 KW - methane KW - oxidation KW - landfills KW - global KW - aliphatic hydrocarbons KW - atmosphere KW - alkanes KW - measurement KW - laboratory studies KW - organic compounds KW - hydrocarbons KW - Henry's law KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52587849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Use+and+Management&rft.atitle=Fluxes+of+methane+between+landfills+and+the+atmosphere%3B+natural+and+engineered+controls&rft.au=Bogner%2C+J%3BMeadows%2C+M%3BCzepiel%2C+P%3BSmith%2C+K&rft.aulast=Bogner&rft.aufirst=J&rft.date=1997-12-01&rft.volume=13&rft.issue=4%2C+Supplement&rft.spage=268&rft.isbn=&rft.btitle=&rft.title=Soil+Use+and+Management&rft.issn=02660032&rft_id=info:doi/ L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1475-2743 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 67 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; atmosphere; field studies; global; Henry's law; hydrocarbons; laboratory studies; landfills; measurement; methane; organic compounds; oxidation ER - TY - JOUR T1 - Pre-concentration of actinide elements from soils and large volume water samples using extraction chromatography AN - 51914792; 2003-084427 JF - Journal of Radioanalytical and Nuclear Chemistry AU - Burnett, W C AU - Corbett, D R AU - Schultz, M AU - Horwitz, E P AU - Chiarizia, R AU - Dietz, M AU - Thakkar, Anil AU - Fern, M A2 - Singh, Narayani P. Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 121 EP - 127 PB - Elsevier, Lausanne-Budapest VL - 226 IS - 1-2 SN - 1417-2097, 1417-2097 KW - soils KW - concentration KW - chromatography KW - chemical analysis KW - monitoring KW - detection limit KW - plutonium KW - surface water KW - pollution KW - liquid scintillation methods KW - mineral composition KW - detection KW - metals KW - chromatograms KW - americium KW - tracers KW - uranium KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51914792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Pre-concentration+of+actinide+elements+from+soils+and+large+volume+water+samples+using+extraction+chromatography&rft.au=Burnett%2C+W+C%3BCorbett%2C+D+R%3BSchultz%2C+M%3BHorwitz%2C+E+P%3BChiarizia%2C+R%3BDietz%2C+M%3BThakkar%2C+Anil%3BFern%2C+M&rft.aulast=Burnett&rft.aufirst=W&rft.date=1997-12-01&rft.volume=226&rft.issue=1-2&rft.spage=121&rft.isbn=&rft.btitle=&rft.title=Journal+of+Radioanalytical+and+Nuclear+Chemistry&rft.issn=14172097&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Sixth international conference on Low-level measurements of actinides and long-lived radionuclides in biological and environmental samples N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2003-01-01 N1 - Number of references - 11 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; americium; chemical analysis; chromatograms; chromatography; concentration; detection; detection limit; liquid scintillation methods; metals; mineral composition; monitoring; plutonium; pollution; soils; surface water; tracers; uranium ER - TY - RPRT T1 - Correct implementation of the Argonne expedited site characterization (ESC) process for preremedial site investigations AN - 51401670; 2007-079507 AB - The Argonne Expedited Site Characterization (ANL ESC) methodology, developed by Argonne National Laboratory and popularly known as ESC, is an effective, cost- and time-saving approach for technically successful preremedial site characterizations. The major objective of the ANL ESC is to determine whether a site containing contamination requires remediation. The methodology is equivalent to a CERCLA RI/FS or a RCRA RFI/CMS investigation. The ANL ESC methodology is an interactive, integrated process emphasizing the use of existing data, multiple complementary characterization methods, and on-site decision making to optimize site investigations. The ANL ESC is the basis for the expedited site characterization standard of the ASTM (American Society for Testing and Materials). The methodology has been registered under the service mark QuickSite (super TM) to offer both clients and providers a mechanism for ensuring that they receive the ANL ESC methodology developed by Argonne. The ANL ESC is a flexible process and is neither site nor contaminant dependent. It can be tailored to fit the unique characteristics that distinguish one site from the next, in contrast to the traditional approach of making all sites conform to the same rigid, inflexible investigation regimen. The ANL ESC has been applied successfully to remedial site investigations of landfills with multiple contaminants in the southwestern US for the Department of Interior (DOI), to former grain storage facilities in the Midwest for the Commodity Credit Corporation of the Department of Agriculture (CCC/USDA), to weapons production facilities in Texas for the Department of Energy (DOE), and to closing and active military bases in several locations for the Department of Defense (DOD). The process can be applied both at sites that have seen little investigation and at sites that have undergone numerous previous site characterizations without reaching closure. In the latter case (e.g., at many DOE and DOD sites), the ANL ESC offers a rapid solution, frequently with little additional field work. JF - Correct implementation of the Argonne expedited site characterization (ESC) process for preremedial site investigations AU - Burton, J C AU - Cook, S AU - Sedivy, R AU - Walker, J L Y1 - 1997/12// PY - 1997 DA - December 1997 SP - 9 VL - ANL/ER/CP-95089 KW - site exploration KW - landfills KW - characterization KW - pollution KW - techniques KW - decision-making KW - migration of elements KW - preventive measures KW - remediation KW - radioactive waste KW - ground water KW - waste management KW - waste disposal KW - storage KW - sanitary landfills KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51401670?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=Burton%2C+J+C%3BCook%2C+S%3BSedivy%2C+R%3BWalker%2C+J+L&rft.aulast=Burton&rft.aufirst=J&rft.date=1997-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Correct+implementation+of+the+Argonne+expedited+site+characterization+%28ESC%29+process+for+preremedial+site+investigations&rft.title=Correct+implementation+of+the+Argonne+expedited+site+characterization+%28ESC%29+process+for+preremedial+site+investigations&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2007-01-01 N1 - Availability - National Technical Information Service, (703)685-6900, order number DE2001-8911NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31-109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Economic impacts on the United States of siting decisions for the international thermonuclear experimental reactor AN - 16273966; 4286539 AB - This paper presents the results of a study that examines and compares the probable short-term economic impacts of the International Thermonuclear Experimental Reactor (ITER) on the United States (U.S.) if (1) ITER were to be sited in the U.S., or (2) ITER were to be sited in one of the other countries that, along with the U.S., is currently participating in the ITER program. Life-cycle costs associated with ITER construction, operation, and decommissioning are analyzed to assess their economic impact. A number of possible U.S. host and U.S. non-host technology and cost-sharing arrangements with the other ITER Parties are examined, although cost-sharing arrangements and the process by which the Parties will select a host country and an ITER site remain open issues. Both national and local/regional economic impacts, as measured by gross domestic product, regional output, employment, net exports, and income, are considered. These impacts represent a portion of the complex, interrelated set of economic considerations that characterize U.S. host and U.S. non-host participation in ITER. A number of other potentially important economic and noneconomic considerations are discussed qualitatively. JF - Journal of Fusion Energy AU - Peerenboom, J P AU - Hanson, ME AU - Huddleston, J R AU - Wolsko, T D AD - Decision and Information Sciences Division, Argonne National Laboratory, 9700 Cass Avenue, Bldg. 900, Argonne, IL 60439, USA Y1 - 1997/12// PY - 1997 DA - Dec 1997 SP - 317 EP - 360 VL - 16 IS - 4 SN - 0164-0313, 0164-0313 KW - Risk Abstracts; Health & Safety Science Abstracts KW - R2 23020:Technological risks KW - H 8000:Radiation Safety/Electrical Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16273966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fusion+Energy&rft.atitle=Economic+impacts+on+the+United+States+of+siting+decisions+for+the+international+thermonuclear+experimental+reactor&rft.au=Peerenboom%2C+J+P%3BHanson%2C+ME%3BHuddleston%2C+J+R%3BWolsko%2C+T+D&rft.aulast=Peerenboom&rft.aufirst=J&rft.date=1997-12-01&rft.volume=16&rft.issue=4&rft.spage=317&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fusion+Energy&rft.issn=01640313&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 - The pathogen transmission avoidance theory of sexual selection AN - 16268693; 4250000 AB - The current theory that sexual selection results from female preference for males with good genes suffers from several problems. An alternative explanation, the pathogen transmission avoidance hypothesis, argues that the primary function of showy traits is to provide a reliable signal of current disease status, so that sick individuals can be avoided during mating. This study shows that a significant risk of pathogen transmission occurs during mating and that showy traits are reliable indicators of current disease status. A simulation model of population dynamics linked with pathogen transmission indicates that female choosiness traits are selectively advantageous and spread through the population but because the selective benefit of choosiness depends on the percentage of choosy females and bright males, as sexual selection proceeds the selection pressure is reduced and the process becomes self-limiting rather than runaway. Thus, an epidemic model approach leads to very different conclusions than a constant selection-coefficient population genetic approach. The origin of female choosiness is argued to lie in a general tendency to avoid sick individuals, even in the absence of showy traits, which originate as exaggerations of normal traits that are indicative of good health (bright feathers, vigorous movement, large size). Thus, in this new model the origins of both showy traits and female choosiness are not problematic and there is no threshold effect. This model predicts that when the possession of male showy traits does not help to reduce disease in the female, showy traits are unlikely to occur. This case corresponds to thorough exposure of every animal to all group pathogens, on average, in large groups. Such species are shown with a large data set on birds to be less likely to exhibit showy traits. The good-genes model does not make this prediction. The pathogen transmission avoidance model can also lead to the evolution of showy traits even when selection is not effective against a given pathogen (e.g. when there is no heritable variation for resistance), but can result in selection for resistance if such genes are present. Monogamy is argued to reduce selection pressures for showy traits; data show monogamous species to be both less parasitized and less showy. Overall, the pathogen transmission avoidance hypothesis provides a complete alternative to the good-genes theory and makes new predictions. JF - Ecological Modelling AU - Loehle, C AD - Environmental Research Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA, craig_loehle@qmgate.anl.gov Y1 - 1997/11/17/ PY - 1997 DA - 1997 Nov 17 SP - 231 EP - 250 VL - 103 IS - 2-3 SN - 0304-3800, 0304-3800 KW - pathogens KW - Microbiology Abstracts B: Bacteriology; Ecology Abstracts KW - J 02862:Infection KW - D 04650:Animals - general KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16268693?accountid=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=Ecological+Modelling&rft.atitle=The+pathogen+transmission+avoidance+theory+of+sexual+selection&rft.au=Loehle%2C+C&rft.aulast=Loehle&rft.aufirst=C&rft.date=1997-11-17&rft.volume=103&rft.issue=2-3&rft.spage=231&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 - Lithium isotope study of the Yellowstone hydrothermal system AN - 52525162; 1999-001419 JF - Eos, Transactions, American Geophysical Union AU - Chan, Lui-Heung AU - Sturchio, N C AU - Katz, Amitai AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 802 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Gallatin County Montana KW - enrichment KW - national parks KW - stable isotopes KW - cores KW - ground water KW - Yellowstone National Park KW - geysers KW - springs KW - trace elements KW - Li-7 KW - Li-6 KW - geochemistry KW - concentration KW - rhyolites KW - lithium KW - alkali metals KW - Park County Wyoming KW - public lands KW - hydrochemistry KW - thermal waters KW - Montana KW - hydrothermal conditions KW - Wyoming KW - southwestern Montana KW - lava KW - metals KW - Teton County Wyoming KW - Yellowstone National Park County Montana KW - hot springs KW - northwestern Wyoming KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52525162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lithium+isotope+study+of+the+Yellowstone+hydrothermal+system&rft.au=Chan%2C+Lui-Heung%3BSturchio%2C+N+C%3BKatz%2C+Amitai%3BAnonymous&rft.aulast=Chan&rft.aufirst=Lui-Heung&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=802&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, 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkali metals; concentration; cores; enrichment; Gallatin County Montana; geochemistry; geysers; ground water; hot springs; hydrochemistry; hydrothermal conditions; igneous rocks; isotopes; lava; Li-6; Li-7; lithium; metals; Montana; national parks; northwestern Wyoming; Park County Wyoming; public lands; rhyolites; southwestern Montana; springs; stable isotopes; Teton County Wyoming; thermal waters; trace elements; United States; volcanic rocks; Wyoming; Yellowstone National Park; Yellowstone National Park County Montana ER - TY - JOUR T1 - Rare earth elements and the Ce anomaly in terrestrial zircons AN - 52160132; 2002-004121 JF - Eos, Transactions, American Geophysical Union AU - Hanchar, J M AU - Hoskin, P W O AU - Jackson, S G AU - Watson, E B AU - Hinton, R W AU - Thibault, Y AU - Finch, R J AU - Wolf, S E AU - Hemming, S AU - Rasbury, E T AU - Hanson, B AU - Lindstrom, D J AU - Anonymous Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 783 PB - American Geophysical Union, Washington, DC VL - 78 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - zircon group KW - silicates KW - alkali metals KW - mass spectra KW - zircon KW - nesosilicates KW - ICP mass spectra KW - cesium KW - sampling KW - metals KW - orthosilicates KW - spectra KW - rare earths KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52160132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Rare+earth+elements+and+the+Ce+anomaly+in+terrestrial+zircons&rft.au=Hanchar%2C+J+M%3BHoskin%2C+P+W+O%3BJackson%2C+S+G%3BWatson%2C+E+B%3BHinton%2C+R+W%3BThibault%2C+Y%3BFinch%2C+R+J%3BWolf%2C+S+E%3BHemming%2C+S%3BRasbury%2C+E+T%3BHanson%2C+B%3BLindstrom%2C+D+J%3BAnonymous&rft.aulast=Hanchar&rft.aufirst=J&rft.date=1997-11-01&rft.volume=78&rft.issue=46%2C+Suppl.&rft.spage=783&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 1997 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - alkali metals; cesium; ICP mass spectra; mass spectra; metals; nesosilicates; orthosilicates; rare earths; sampling; silicates; spectra; zircon; zircon group ER - TY - JOUR T1 - Offsite oil field waste disposal varies across U.S. AN - 50929398; 1998-005153 JF - Oil & Gas Journal AU - Veil, John A Y1 - 1997/11// PY - 1997 DA - November 1997 SP - 79 EP - 85 PB - PennWell, Tulsa, OK VL - 95 IS - 46 SN - 0030-1388, 0030-1388 KW - United States KW - natural gas KW - regulations KW - petroleum KW - waste disposal KW - cost KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50929398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oil+%26+Gas+Journal&rft.atitle=Offsite+oil+field+waste+disposal+varies+across+U.S.&rft.au=Veil%2C+John+A&rft.aulast=Veil&rft.aufirst=John&rft.date=1997-11-01&rft.volume=95&rft.issue=46&rft.spage=79&rft.isbn=&rft.btitle=&rft.title=Oil+%26+Gas+Journal&rft.issn=00301388&rft_id=info:doi/ L2 - http://ogj.pennnet.com/home.cfm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 6 N1 - PubXState - OK N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Based on a paper presented at the 4th annual Int. pet. environ. conf., San Antonio, TX, Sept. 9-12, 1997 N1 - Last updated - 2012-06-07 N1 - CODEN - OIGJAV N1 - SubjectsTermNotLitGenreText - cost; natural gas; petroleum; regulations; United States; waste disposal ER - TY - JOUR T1 - Kinetics of methane oxidation in a landfill cover soil; temporal variations, a whole-landfill oxidation experiment, and modeling of net CH (sub 4) emissions AN - 52366049; 2000-027310 JF - Environmental Science & Technology, ES & T AU - Bogner, Jean E AU - Spokas, Kurt A AU - Burton, Elizabeth A Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 2504 EP - 2514 PB - American Chemical Society, Washington, DC VL - 31 IS - 9 SN - 0013-936X, 0013-936X KW - soils KW - concentration KW - LMEM KW - experimental studies KW - methane KW - oxidation KW - landfills KW - aliphatic hydrocarbons KW - mathematical models KW - alkanes KW - Landfill Methane Emission Model KW - variations KW - carbon dioxide KW - models KW - organic compounds KW - hydrocarbons KW - waste disposal KW - mass transfer KW - kinetics KW - geochemistry KW - microorganisms KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52366049?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Kinetics+of+methane+oxidation+in+a+landfill+cover+soil%3B+temporal+variations%2C+a+whole-landfill+oxidation+experiment%2C+and+modeling+of+net+CH+%28sub+4%29+emissions&rft.au=Bogner%2C+Jean+E%3BSpokas%2C+Kurt+A%3BBurton%2C+Elizabeth+A&rft.aulast=Bogner&rft.aufirst=Jean&rft.date=1997-09-01&rft.volume=31&rft.issue=9&rft.spage=2504&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 - 2000-01-01 N1 - Number of references - 56 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; carbon dioxide; concentration; experimental studies; geochemistry; hydrocarbons; kinetics; Landfill Methane Emission Model; landfills; LMEM; mass transfer; mathematical models; methane; microorganisms; models; organic compounds; oxidation; soils; variations; waste disposal ER - TY - RPRT T1 - Review of analytical results from the proposed agent disposal facility site, Aberdeen Proving Ground AN - 52290141; 2001-001160 AB - Argonne National Laboratory reviewed the analytical results from 57 composite soil samples collected in the Bush River area of Aberdeen Proving Ground, Maryland. A suite of 16 analytical tests involving 11 different SW-846 methods was used to detect a wide range of organic and inorganic contaminants. One method (BTEX) was considered redundant, and two "single-number" methods (TPH and TOX) were found to lack the required specificity to yield unambiguous results, especially in a preliminary investigation. Volatile analytes detected at the site include 1,1,2,2-tetrachloroethane, trichloroethylene, and tetrachloroethylene, all of which probably represent residual site contamination from past activities. Other volatile analytes detected include toluene, tridecane, methylene chloride, and trichlorofluoromethane. These compounds are probably not associated with site contamination but likely represent cross-contamination or, in the case of tridecane, a naturally occurring material. Semivolatile analytes detected include three different phthalates and low part-per-billion amounts of the pesticide DDT and its degradation product DDE. The pesticide could represent residual site contamination from past activities, and the phthalates are likely due, in part, to cross-contamination during sample handling. A number of high-molecular-weight hydrocarbons and hydrocarbon derivatives were detected and were probably naturally occurring compounds. JF - Review of analytical results from the proposed agent disposal facility site, Aberdeen Proving Ground AU - Brubaker, K L AU - Reed, L L AU - Myers, S W AU - Shepard, L T AU - Sydelko, T G Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 27 VL - ANL/ESD/TM-143 KW - United States KW - soils KW - halides KW - degradation KW - explosions KW - pollutants KW - chemical explosions KW - Aberdeen Proving Ground KW - pollution KW - petroleum KW - BTEX KW - volatiles KW - organic compounds KW - hydrocarbons KW - Harford County Maryland KW - Maryland KW - waste disposal KW - pesticides KW - military facilities KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52290141?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=Brubaker%2C+K+L%3BReed%2C+L+L%3BMyers%2C+S+W%3BShepard%2C+L+T%3BSydelko%2C+T+G&rft.aulast=Brubaker&rft.aufirst=K&rft.date=1997-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Review+of+analytical+results+from+the+proposed+agent+disposal+facility+site%2C+Aberdeen+Proving+Ground&rft.title=Review+of+analytical+results+from+the+proposed+agent+disposal+facility+site%2C+Aberdeen+Proving+Ground&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2001-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE98001777NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Lacunarity analysis of cyclic stratigraphic sequences AN - 52170704; 2001-077974 AB - The orbital cycles of procession, obliquity, and eccentricity, which change the seasonal distribution of insolation, are believed to be a major control over global and regional climates at time scales less than 10 (super 6) years. To a first approximation, the development of stratigraphic sequences at these scales is a function of eustatic sea level change, which is global in scope, and sediment supply and subsidence, which are regional. Both sea level and sediment supply, in turn, are controlled by global and regional climate. As a result, there has been a great of interest in attempting to model and assess the extent to which astronomical cycles are expressed in the stratigraphic record [1, 2]. In this paper we will describe how the recently developed technique of lacunarity analysis can be applied to the study of cyclic stratigraphic sequences and can be used as a tool for model validation and data comparison by cyclostratigraphers. We apply this method to a model marine siliciclastic sequence in which both sea level and sediment supply are linearly driven by orbital cycles. Our results suggest that recognition of cyclic signals in these systems, even in ideal situations, may be problematic. JF - Proceedings of the ... Annual Conference of the International Association for Mathematical Geology (IAMG) AU - Plotnick, R E AU - Perlmutter, M A A2 - Pawlowsky-Glahn, Vera Y1 - 1997/09// PY - 1997 DA - September 1997 SP - 513 EP - 518 PB - [publisher varies], [location varies] VL - 3 KW - sequence stratigraphy KW - lithostratigraphy KW - cyclostratigraphy KW - Quaternary KW - time series analysis KW - erosion KW - statistical analysis KW - sedimentation KW - mathematical geology KW - marine sedimentation KW - climate change KW - Cenozoic KW - sea-level changes KW - stratigraphic gaps KW - mathematical methods KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52170704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+...+Annual+Conference+of+the+International+Association+for+Mathematical+Geology+%28IAMG%29&rft.atitle=Lacunarity+analysis+of+cyclic+stratigraphic+sequences&rft.au=Plotnick%2C+R+E%3BPerlmutter%2C+M+A&rft.aulast=Plotnick&rft.aufirst=R&rft.date=1997-09-01&rft.volume=3&rft.issue=&rft.spage=513&rft.isbn=8487867979&rft.btitle=&rft.title=Proceedings+of+the+...+Annual+Conference+of+the+International+Association+for+Mathematical+Geology+%28IAMG%29&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Third annual conference of the International Association for Mathematical Geology N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 10 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #05777 N1 - SubjectsTermNotLitGenreText - Cenozoic; climate change; cyclostratigraphy; erosion; lithostratigraphy; marine sedimentation; mathematical geology; mathematical methods; Quaternary; sea-level changes; sedimentation; sequence stratigraphy; statistical analysis; stratigraphic gaps; time series analysis ER - TY - JOUR T1 - The adaptive significance of trunk inclination on slopes: a commentary AN - 17095470; 4411173 AB - A recent study explored the adaptive significance of trunk inclination for trees growing on steep slopes. The authors used an optimality argument to predict how much a tree should respond to sidelight. Their calculations of the costs of leaning are flawed, because: (i) leaf mass has an allometric relationship with total volume, rather than being a fixed proportion of wood mass; (ii) the cost of support wood tissue is mainly a growth rate cost, not a maintenance respiration cost; (iii) small trees are sufficiently elastic to need very little support tissue, and thus they have a different risk structure; and (iv) most crown gaps are ephemeral rather than permanent, which also changes the risk equation. The argument I proposed in a previous study, addressing exactly the same question, is that canopy species are under selective pressure to maintain a strong central trunk that will reach the canopy and thus should not respond to sidelight. A reproductive value model is presented to illustrate this evolutionary question. Small, short-lived species or those from habitats with permanent openings (such as river margins) should be responsive. Both my previous data and the data of the other study support my model, but the model in the other study leaves many facts unexplained. JF - Proceedings of the Royal Society of London, Series B: Biological Sciences AU - Loehle, C AD - Environmental Research Division, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1997/09// PY - 1997 DA - Sep 1997 SP - 1371 EP - 1374 VL - 264 IS - 1386 SN - 0962-8452, 0962-8452 KW - Ecology Abstracts KW - Light interception KW - Adaptations KW - Trees KW - Functional morphology KW - Models KW - D 04003:Modeling, mathematics, computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/17095470?accountid=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=Proceedings+of+the+Royal+Society+of+London%2C+Series+B%3A+Biological+Sciences&rft.atitle=The+adaptive+significance+of+trunk+inclination+on+slopes%3A+a+commentary&rft.au=Loehle%2C+C&rft.aulast=Loehle&rft.aufirst=C&rft.date=1997-09-01&rft.volume=264&rft.issue=1386&rft.spage=1371&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+Royal+Society+of+London%2C+Series+B%3A+Biological+Sciences&rft.issn=09628452&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 - Light interception; Trees; Models; Adaptations; Functional morphology ER - TY - JOUR T1 - The incorporation of Pb into zircon AN - 52664725; 1997-077158 AB - The incorporation of Pb into zircons grown from Pb-rich solutions was evaluated using three aproaches: 1) high-T growth of large crystals from Pb-silicate melts, 2) hydrothermal overplating of thin epitaxial layers on substrates of natural zircon and 3) growth of small, homogeneously nucleated crystals from aqueous fluids. Because of the rapid, polythermal modes of zircon growth and the high Pb content of the experimental systems, the resulting apparent partition coefficients should not be viewed as equilibrium values, but as qualitative indicators of Pb compatibility in various growth circumstances. The overall results are consistent with the low but variable levels of non-radiogenic Pb in natural zircons. The increased compatibililty of Pb in fluid-grown, low-T zircons suggests a possible fingerprint for zircons from hydrothermal and wet-metamorphic rocks, i.e. high concentrations of common Pb. JF - Chemical Geology AU - Watson, E B AU - Cherniak, D J AU - Hanchar, J M AU - Harrison, T M AU - Wark, D A Y1 - 1997/08// PY - 1997 DA - August 1997 SP - 19 EP - 31 PB - Elsevier, Amsterdam VL - 141 IS - 1-2 SN - 0009-2541, 0009-2541 KW - zircon group KW - silicates KW - experimental studies KW - diffusion KW - lead KW - zircon KW - crystal growth KW - melts KW - hydrothermal conditions KW - nesosilicates KW - partition coefficients KW - nucleation KW - metals KW - orthosilicates KW - synthesis KW - crystal chemistry KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52664725?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+incorporation+of+Pb+into+zircon&rft.au=Watson%2C+E+B%3BCherniak%2C+D+J%3BHanchar%2C+J+M%3BHarrison%2C+T+M%3BWark%2C+D+A&rft.aulast=Watson&rft.aufirst=E&rft.date=1997-08-01&rft.volume=141&rft.issue=1-2&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2FS0009-2541%2897%2900054-5 L2 - http://www.sciencedirect.com/science/journal/00092541 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 - 1997-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - crystal chemistry; crystal growth; diffusion; experimental studies; geochemistry; hydrothermal conditions; lead; melts; metals; nesosilicates; nucleation; orthosilicates; partition coefficients; silicates; synthesis; zircon; zircon group DO - http://dx.doi.org/10.1016/S0009-2541(97)00054-5 ER - TY - JOUR T1 - S-process zirconium in presolar silicon carbide grains AN - 52632427; 1997-078362 JF - Science AU - Nicolussi, Guenther K AU - Davis, Andrew M AU - Pellin, Michael J AU - Lewis, Roy S AU - Clayton, Robert N AU - Amari, Sachiko Y1 - 1997/08// PY - 1997 DA - August 1997 SP - 1281 EP - 1283 PB - American Association for the Advancement of Science, Washington, DC VL - 277 IS - 5330 SN - 0036-8075, 0036-8075 KW - stony meteorites KW - isotopes KW - parent bodies KW - Zr-92 KW - Zr-91 KW - zirconium KW - cosmochemistry KW - Zr-90 KW - carbonaceous chondrites KW - Murchison Meteorite KW - meteorites KW - cosmogeny KW - red giant stars KW - Zr-96 KW - silicon carbide KW - Zr-94 KW - metals KW - condensates KW - CM chondrites KW - chondrites KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52632427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science&rft.atitle=S-process+zirconium+in+presolar+silicon+carbide+grains&rft.au=Nicolussi%2C+Guenther+K%3BDavis%2C+Andrew+M%3BPellin%2C+Michael+J%3BLewis%2C+Roy+S%3BClayton%2C+Robert+N%3BAmari%2C+Sachiko&rft.aulast=Nicolussi&rft.aufirst=Guenther&rft.date=1997-08-01&rft.volume=277&rft.issue=5330&rft.spage=1281&rft.isbn=&rft.btitle=&rft.title=Science&rft.issn=00368075&rft_id=info:doi/ L2 - http://www.sciencemag.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - SCIEAS N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; CM chondrites; condensates; cosmochemistry; cosmogeny; isotopes; metals; meteorites; Murchison Meteorite; parent bodies; red giant stars; silicon carbide; stony meteorites; zirconium; Zr-90; Zr-91; Zr-92; Zr-94; Zr-96 ER - TY - JOUR T1 - Carbon, nitrogen, and sulfur geochemistry of Archean and Proterozoic shales from the Kaapvaal Craton, South Africa AN - 52622408; 1998-012982 AB - Analyses are presented of 100 samples of shales from ten Precambrian formations deposited in the E and central Transvaal region of this craton, ranging from 3000 to 2100 m.y. Analyses include N, S, total C, organic C, Delta (super 13) C (sub total) , Delta (super 13) C (sub org) , Delta (super 34) S and Fe (sub 2) O (sub 3) . Kerogen-enriched samples are analysed for N, C, H, S and Fe. The average N/C ratios of the kerogens are generally lower than those of bulk rocks indicating the N (sub 2) is mostly fixed in clay minerals, possibly as NH (super +) (sub 4 ) rather than in organic matter. In theory, the initial C (sub org) contents of the Kaapvaal shales were five times the measured values; the original C (sub org) in the late Archaean and early Proterozoic from the craton is estimated at 2.45 and 2.15 wt.%, respectively, and similar to average C (sub org) of modern marine sediments. Delta (super 34) S values of sulphides indicate pyrite formation from H (sub 2) S generated by bacterial reduction of sea-water sulphate. Based on the C (sub org) and sulphide S results, the Kaapvaal shales from the central and E regions are divided into three groups representing different depositional environments. Development of anoxic basins and implications for detrital uraninite and pyrite are discussed. JF - Geochimica et Cosmochimica Acta AU - Watanabe, Yumiko AU - Naraoka, Hiroshi AU - Wronkiewicz, David J AU - Condie, Kent C AU - Ohmoto, Hiroshi Y1 - 1997/08// PY - 1997 DA - August 1997 SP - 3441 EP - 3459 PB - Pergamon, Oxford VL - 61 IS - 16 SN - 0016-7037, 0016-7037 KW - upper Precambrian KW - Precambrian KW - isotopes KW - Paleoproterozoic KW - isotope ratios KW - C-13/C-12 KW - Proterozoic KW - stable isotopes KW - nitrogen KW - geochemical cycle KW - Kaapvaal Craton KW - organic compounds KW - S-34/S-32 KW - carbon KW - Southern Africa KW - metamorphic rocks KW - metasedimentary rocks KW - sulfur KW - Africa KW - Archean KW - organic carbon KW - geochemistry KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52622408?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Carbon%2C+nitrogen%2C+and+sulfur+geochemistry+of+Archean+and+Proterozoic+shales+from+the+Kaapvaal+Craton%2C+South+Africa&rft.au=Watanabe%2C+Yumiko%3BNaraoka%2C+Hiroshi%3BWronkiewicz%2C+David+J%3BCondie%2C+Kent+C%3BOhmoto%2C+Hiroshi&rft.aulast=Watanabe&rft.aufirst=Yumiko&rft.date=1997-08-01&rft.volume=61&rft.issue=16&rft.spage=3441&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2897%2900164-6 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1998-01-01 N1 - Number of references - 81 N1 - Document feature - illus. incl. strat. col., 3 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Africa; Archean; C-13/C-12; carbon; geochemical cycle; geochemistry; isotope ratios; isotopes; Kaapvaal Craton; metamorphic rocks; metasedimentary rocks; nitrogen; organic carbon; organic compounds; Paleoproterozoic; Precambrian; Proterozoic; S-34/S-32; Southern Africa; stable isotopes; sulfur; upper Precambrian DO - http://dx.doi.org/10.1016/S0016-7037(97)00164-6 ER - TY - JOUR T1 - Effects of cadmium on bone: an in vivo model for the early response. AN - 79128450; 9221825 AB - Cadmium (Cd) exposure induces bone resorption in vitro and in vivo that can lead to low bone mass and increased incidence of fracture. We have developed an animal model for following the early skeletal response to Cd. A low-calcium (but not calcium-deficient) diet is used to increase gastrointestinal absorption of calcium so that the endogenous fecal calcium excretion is essentially the total fecal calcium excretion. The bone response is followed by quantitation of stable fecal calcium and does not require a radioactive label. After mice were adjusted to a low-calcium diet, Cd was administered by a single gavage and fecal calcium was monitored to determine the magnitude of the calcium release from bone. Fecal calcium excretion (microg Ca/hr; mean +/- SE) remained at the background level for 8 hr (13.6 +/- 1.8, n = 18) but increased during the 8- to 24-hr and 24- to 56-hr collection periods (43.8 +/- 6.8, n = 12; 50.75 +/- 3.7, n = 6, respectively). The bone response was transient and dropped to nearly background levels during the 56- to 104-hr collection period. Blood calcium levels were normal throughout the time course. Bone resorption occurred at Cd levels of 7.9 +/- 0.7 microg/liter blood (mean +/- SE, n = 6), which is in the range of occupational exposure levels. The transient nature of the bone response contrasted to the slow but continuing rise observed in blood Cd levels. These results suggest that a threshold level of Cd is required for a bone response but that chronic levels of Cd in blood do not necessarily indicate the occurrence of continuous active bone resorption. This model can be used to probe early gene changes (prior to the bone response) that may be occurring in response to Cd exposure. JF - Toxicology and applied pharmacology AU - Wilson, A K AU - Bhattacharyya, M H AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Illinois 60439-4833, USA. Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 68 EP - 73 VL - 145 IS - 1 SN - 0041-008X, 0041-008X KW - Calcium, Dietary KW - 0 KW - Cadmium KW - 00BH33GNGH KW - Calcium KW - SY7Q814VUP KW - Index Medicus KW - Bone Density -- drug effects KW - Administration, Oral KW - Mass Spectrometry KW - Animals KW - Analysis of Variance KW - Calcium, Dietary -- administration & dosage KW - Disease Models, Animal KW - Mice KW - Intestinal Absorption -- drug effects KW - Feces -- chemistry KW - Female KW - Calcium -- metabolism KW - Bone Resorption -- chemically induced KW - Cadmium -- administration & dosage KW - Cadmium -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79128450?accountid=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=Effects+of+cadmium+on+bone%3A+an+in+vivo+model+for+the+early+response.&rft.au=Wilson%2C+A+K%3BBhattacharyya%2C+M+H&rft.aulast=Wilson&rft.aufirst=A&rft.date=1997-07-01&rft.volume=145&rft.issue=1&rft.spage=68&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 - 1997-08-08 N1 - Date created - 1997-08-08 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Anaerobic phenol degradation by microorganisms of swine manure. AN - 79047343; 9175563 AB - Swine manure contains diverse groups of aerobic and anaerobic bacteria. An anaerobic bacterial consortium containing sulfate-reducing bacteria (SRB) and acetate-utilizing methanogenic bacteria was isolated from swine manure. This consortium used phenol as its sole source of carbon and converted it to methane and CO2. The sulfate-reducing bacterial members of the consortium are the incomplete oxidizers, unable to carry out the terminal oxidation of organic substrates, leaving acetic acid as the end product. The methanogenic bacteria of the consortium converted the acetic acid to methane. When a methanogen inhibitor was used in the culture medium, phenol was converted to acetic acid by the SRB, but the acetic acid did not undergo further metabolism. On the other hand, when the growth of SRB in the consortium was suppressed with a specific SRB inhibitor, namely, molybdenum tetroxide, the phenol was not degraded. Thus, the metabolic activities of both the sulfate-reducing bacteria and the methanogenic bacteria were essential for complete degradation of phenol. JF - Current microbiology AU - Boopathy, R AD - Environmental Research Division, Building 203, Argonne National Laboratory, Argonne, IL 60439, USA. Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 64 EP - 67 VL - 35 IS - 1 SN - 0343-8651, 0343-8651 KW - Manure KW - 0 KW - Phenols KW - Phenol KW - 339NCG44TV KW - Biotechnology KW - Swine KW - Animals KW - Biodegradation, Environmental KW - Bacteria, Anaerobic -- metabolism KW - Phenols -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79047343?accountid=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=Current+microbiology&rft.atitle=Anaerobic+phenol+degradation+by+microorganisms+of+swine+manure.&rft.au=Boopathy%2C+R&rft.aulast=Boopathy&rft.aufirst=R&rft.date=1997-07-01&rft.volume=35&rft.issue=1&rft.spage=64&rft.isbn=&rft.btitle=&rft.title=Current+microbiology&rft.issn=03438651&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-07-10 N1 - Date created - 1997-07-10 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - The s-process in asymptotic giant branch (AGB) stars; clues from zirconium and molybdenum isotopic compositions of individual presolar silicon carbide grains AN - 52597844; 1998-036543 JF - Meteoritics & Planetary Science AU - Nicolussi, G K AU - Davis, A M AU - Pellin, M J AU - Lewis, R S AU - Clayton, R N AU - Amari, S A2 - Sears, Derek W. G. Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 99 PB - Meteoritical Society, Fayetteville, AR VL - 32, Suppl. SN - 1086-9379, 1086-9379 KW - moissanite KW - AGB stars KW - isotopes KW - isotope ratios KW - zirconium KW - cosmochemistry KW - carbides KW - silicon KW - asymptotic giant branch stars KW - stars KW - molybdenum KW - metals KW - geochemical anomalies KW - alloys KW - chemical composition KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52597844?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+s-process+in+asymptotic+giant+branch+%28AGB%29+stars%3B+clues+from+zirconium+and+molybdenum+isotopic+compositions+of+individual+presolar+silicon+carbide+grains&rft.au=Nicolussi%2C+G+K%3BDavis%2C+A+M%3BPellin%2C+M+J%3BLewis%2C+R+S%3BClayton%2C+R+N%3BAmari%2C+S&rft.aulast=Nicolussi&rft.aufirst=G&rft.date=1997-07-01&rft.volume=32%2C+Suppl.&rft.issue=&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 60th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - AGB stars; alloys; asymptotic giant branch stars; carbides; chemical composition; cosmochemistry; geochemical anomalies; isotope ratios; isotopes; metals; moissanite; molybdenum; silicon; stars; zirconium ER - TY - RPRT T1 - Using phytoremediation to clean up contamination at military installations AN - 52411376; 2000-000152 AB - During and following World War II, wastes from the production of munitions and other military materials were disposed of using the best available practices acceptable at that time. However, these disposal methods often contaminated soil and groundwater with organic compounds and metals that require cleanup under current regulations. An emerging technology for cleaning contaminated soils and shallow groundwater is phytoremediation, an environmentally friendly, low- cost, and low-tech process. Phytoremediation encompasses all plant-influenced biological, chemical, and physical processes that aid in the uptake, degradation, and metabolism of contaminants by either plants or free-living organisms in the plant's rhizosphere. A phytoremediation system can be viewed as a biological, solar-driven, pump-and-treat system with an extensive, self-extending uptake network (the root system) that enhances the soil and below-ground ecosystem for subsequent productive use. Argonne National Laboratory (ANL) has been conducting basic and applied research in phytoremediation since 1990. Initial greenhouse studies evaluated salt-tolerant wetland plants to clean UP and reduce the volume of salty "produced water" from petroleum wells. Results of these studies were used to design a bioreactor for processing produced water that is being demonstrated at a natural gas well in Oklahoma; this system can reduce produced water volume by about 75% in less than eight days, representing substantial savings in waste disposal cost. During 1994, ANL conducted a TNT plant uptake and in situ remediation study in a ridge-and-furrow area used for the disposal of pink water at the Joliet Army Ammunition Plant. JF - Using phytoremediation to clean up contamination at military installations AU - Zellmer, S D AU - Hinchman, R R AU - Negri, M C AU - Schneider, J F AU - Gatliff, E G Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 19 VL - ANL/ES/CP-94040 | CONF-9706183 KW - United States KW - soils KW - biodegradation KW - Illinois KW - metabolism KW - biochemistry KW - regulations KW - soil treatment KW - ecosystems KW - chemical waste KW - bioremediation KW - Will County Illinois KW - remediation KW - ground water KW - decontamination KW - metals KW - Joliet Army Ammunition Plant KW - industrial waste KW - waste disposal KW - military facilities KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52411376?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=Zellmer%2C+S+D%3BHinchman%2C+R+R%3BNegri%2C+M+C%3BSchneider%2C+J+F%3BGatliff%2C+E+G&rft.aulast=Zellmer&rft.aufirst=S&rft.date=1997-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Using+phytoremediation+to+clean+up+contamination+at+military+installations&rft.title=Using+phytoremediation+to+clean+up+contamination+at+military+installations&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97007971NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 2nd Tri-service environmental technology workshop, Saint Louis, MO, June 10-12, 1997; Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Precipitation source inferred from stable isotopic composition of Pleistocene groundwater and carbonate deposits in the Western Desert of Egypt AN - 50930207; 1997-067758 JF - Quaternary Research AU - Sultan, Mohamed AU - Sturchio, Neil C AU - Hassan, Fekri A AU - Hamdan, Mohamed Abdel Rahman AU - Mahmood, Abdel Moneim AU - El Alfy, Zeinhom AU - Stein, Tom Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 29 EP - 37 PB - Academic Press, New York, NY VL - 48 IS - 1 SN - 0033-5894, 0033-5894 KW - carbonate sediments KW - Quaternary KW - oxygen KW - North Africa KW - isotopes KW - paleohydrology KW - isotope ratios KW - Western Desert KW - O-18/O-16 KW - hydrochemistry KW - stable isotopes KW - ground water KW - Egypt KW - Cenozoic KW - sediments KW - Pleistocene KW - Africa KW - geochemistry KW - 24:Quaternary geology KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50930207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Precipitation+source+inferred+from+stable+isotopic+composition+of+Pleistocene+groundwater+and+carbonate+deposits+in+the+Western+Desert+of+Egypt&rft.au=Sultan%2C+Mohamed%3BSturchio%2C+Neil+C%3BHassan%2C+Fekri+A%3BHamdan%2C+Mohamed+Abdel+Rahman%3BMahmood%2C+Abdel+Moneim%3BEl+Alfy%2C+Zeinhom%3BStein%2C+Tom&rft.aulast=Sultan&rft.aufirst=Mohamed&rft.date=1997-07-01&rft.volume=48&rft.issue=1&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Quaternary+Research&rft.issn=00335894&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00335894 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 40 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables, sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - QRESAV N1 - SubjectsTermNotLitGenreText - Africa; carbonate sediments; Cenozoic; Egypt; geochemistry; ground water; hydrochemistry; isotope ratios; isotopes; North Africa; O-18/O-16; oxygen; paleohydrology; Pleistocene; Quaternary; sediments; stable isotopes; Western Desert ER - TY - JOUR T1 - Volatile-trace-element content and petrographic type in equilibrated H chondrites AN - 50311958; 1998-036625 JF - Meteoritics & Planetary Science AU - Wolf, S F AU - Lipschutz, M E A2 - Sears, Derek W. G. Y1 - 1997/07// PY - 1997 DA - July 1997 SP - 141 EP - 142 PB - Meteoritical Society, Fayetteville, AR VL - 32, Suppl. SN - 1086-9379, 1086-9379 KW - chemical elements KW - ordinary chondrites KW - discriminant analysis KW - stony meteorites KW - thermal properties KW - statistical analysis KW - cosmochemistry KW - H chondrites KW - metamorphism KW - meteorites KW - major elements KW - volatile elements KW - classification KW - trace elements KW - chondrites KW - chemical composition KW - geochemistry KW - regression analysis KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50311958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Volatile-trace-element+content+and+petrographic+type+in+equilibrated+H+chondrites&rft.au=Wolf%2C+S+F%3BLipschutz%2C+M+E&rft.aulast=Wolf&rft.aufirst=S&rft.date=1997-07-01&rft.volume=32%2C+Suppl.&rft.issue=&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 60th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - Number of references - 10 N1 - PubXState - AR N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical composition; chemical elements; chondrites; classification; cosmochemistry; discriminant analysis; geochemistry; H chondrites; major elements; metamorphism; meteorites; ordinary chondrites; regression analysis; statistical analysis; stony meteorites; thermal properties; trace elements; volatile elements ER - TY - JOUR T1 - Rb and p53 gene deletions in lung adenocarcinomas from irradiated and control mice AN - 16402342; 4285607 AB - This study was conducted on mouse lung adenocarcinoma tissues that were treated with formalin and embedded in paraffin 25 years ago to investigate the large gene deletions of Rb and p53 in B6CF sub(1) male mice. A total of 80 lung tissue samples from irradiated mice and 40 lung samples from nonirradiated controls were selected randomly and examined in the Rb portion of this study. The results showed a significantly (P 0.05) from that for spontaneous lung adenocarcinomas or lung adenocarcinomas from mice exposed to single-dose gamma irradiation at a similar total dose. Rb fragments 3 (71%) and 5 (67%), the parts of the gene that encoded the pocket binding region of Rb protein to adenovirus E1A and SV40 T-antigen, were the most frequently deleted fragments. Analysis of p53 gene deletion was carried out on normal lungs and lung adenocarcinomas that were initially found to bear Rb deletions. Exons 1, 4, 5, 6 and 9 were chosen to be analyzed. The data showed that 30 (97%) of 31 normal lungs and lung adenocarcinomas had p53 deletions. Exons 4 (83%) and 5 (90%) were the most frequently deleted among tested exons. Mice exposed to neutrons 60 times on a once-weekly schedule had a higher percentage of complete p53 deletions (5/8; 63%) than those exposed to gamma rays 60 times on a once-weekly schedule (2/8; 25%). We conclude that p53 deletions may be one of the major mutational events in the tumorigenesis of lung adenocarcinomas in the irradiated B6CF sub(1) mice. JF - Radiation Research AU - Zhang, Yueru AU - Woloschak, GE AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439-4833, USA Y1 - 1997/07// PY - 1997 DA - Jul 1997 SP - 81 EP - 89 VL - 148 IS - 1 KW - Rb gene KW - gamma radiation KW - adenocarcinoma KW - deletion KW - lung KW - mice KW - p53 gene KW - tumor suppressor genes KW - Toxicology Abstracts KW - X 24210:Radiation & radioactive materials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16402342?accountid=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=Rb+and+p53+gene+deletions+in+lung+adenocarcinomas+from+irradiated+and+control+mice&rft.au=Zhang%2C+Yueru%3BWoloschak%2C+GE&rft.aulast=Zhang&rft.aufirst=Yueru&rft.date=1997-07-01&rft.volume=148&rft.issue=1&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Radiation+Research&rft.issn=&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 - Radium dial workers: issues concerning dose response and modeling. AN - 79058096; 9189169 AB - The mortality pattern of women who began employment as luminizers in the radium dial industry before 1930 was followed through 1990. Hazard models with time-dependent covariates were used on mortality data either organized by individual death times or grouped into cross-classified person-year tables. These models were used to quantify trends in mortality associated with either death from or diagnosis of bone sarcoma or head carcinoma. The accumulation of skeletal doses from 226Ra and 225Ra was an important predictor of the risk of death from bone sarcoma. Women exposed to 226Ra at ages associated with active bone growth were at greater risk of bone sarcoma than women receiving even larger exposures at an age when their skeletons would have been fully developed. Exposure to only 226Ra was found to be an important predictor of risk for carcinoma of the mastoid air cells and paranasal sinuses. For the cranial sites, where adult dimensions are attained early in life, an effect of age at exposure could not be detected. JF - Radiation research AU - Carnes, B A AU - Groer, P G AU - Kotek, T J AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Illinois 60439, USA. Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 707 EP - 714 VL - 147 IS - 6 SN - 0033-7587, 0033-7587 KW - Radium KW - W90AYD6R3Q KW - Index Medicus KW - Space life sciences KW - Bone Neoplasms KW - Humans KW - Dose-Response Relationship, Radiation KW - Models, Biological KW - Female KW - Radium -- adverse effects KW - Neoplasms, Radiation-Induced -- etiology KW - Head and Neck Neoplasms -- etiology KW - Occupational Exposure -- adverse effects KW - Sarcoma -- etiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/79058096?accountid=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=Radium+dial+workers%3A+issues+concerning+dose+response+and+modeling.&rft.au=Carnes%2C+B+A%3BGroer%2C+P+G%3BKotek%2C+T+J&rft.aulast=Carnes&rft.aufirst=B&rft.date=1997-06-01&rft.volume=147&rft.issue=6&rft.spage=707&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 - 1997-07-03 N1 - Date created - 1997-07-03 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - 2-point spatial correlation analysis of microgeometry using photoluminescent volumetric imaging AN - 50473469; 2009-034764 JF - SIAM Conference on Mathematical and Computational Issues in the Geosciences AU - Montemagno, C D AU - Ma, Y AU - Ita, S AU - Dawson, Clint N Y1 - 1997/06// PY - 1997 DA - June 1997 SP - 70 EP - 71 PB - Society for Industrial and Applied Mathematics, [varies] VL - 4 KW - sand KW - imagery KW - three-dimensional models KW - spatial data KW - micromorphology KW - clastic sediments KW - grain size KW - techniques KW - mathematical models KW - correlation KW - two-dimensional models KW - measurement KW - geometry KW - spatial distribution KW - luminescence KW - sediments KW - interpretation KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50473469?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.atitle=2-point+spatial+correlation+analysis+of+microgeometry+using+photoluminescent+volumetric+imaging&rft.au=Montemagno%2C+C+D%3BMa%2C+Y%3BIta%2C+S%3BDawson%2C+Clint+N&rft.aulast=Montemagno&rft.aufirst=C&rft.date=1997-06-01&rft.volume=4&rft.issue=&rft.spage=70&rft.isbn=&rft.btitle=&rft.title=SIAM+Conference+on+Mathematical+and+Computational+Issues+in+the+Geosciences&rft.issn=&rft_id=info:doi/ L2 - http://www.siam.org/meetings/archives.php LA - English DB - GeoRef N1 - Conference title - Fourth SIAM conference on Mathematical and computational issues in the geosciences N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2009-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #06853 N1 - SubjectsTermNotLitGenreText - clastic sediments; correlation; geometry; grain size; imagery; interpretation; luminescence; mathematical models; measurement; micromorphology; sand; sediments; spatial data; spatial distribution; techniques; three-dimensional models; two-dimensional models ER - TY - JOUR T1 - An intercomparison of whole-body counters at participating region III nuclear power plants. AN - 78956485; 9106724 AB - Seventeen Region III nuclear stations originated and participated in an intercomparison study of their whole body counting procedures using the same calibration standard. The first phase of the study involved transporting a phantom containing four reactor-produced radionuclides and 40K to each plant. The plant staff were asked to follow all procedures applicable for a human subject including routine and investigative counts, if necessary, and to provide a printout of the results to the project investigators. The results from each plant were normalized for intercomparison by calculating the ratio of the reported activity to the actual activity after correcting for the appropriate amount of decay to the time of the count. Five plants reported 60Co values outside 1 standard deviation (SD) of the mean for 60Co and one plant did not detect the presence of 60Co. According to previously established procedures, these six plants were revisited after a period of time in which internal recalibration and corrective actions could be made. Four of the six plants had results which were still outside 1 SD of the mean for the original study. A final report in coded form to protect plant anonymity was provided to those stations to guide them in making further improvements, if they chose to do so. JF - Health physics AU - Neeson, D C AU - Kessler, W V AU - Landolt, R R AU - Barton, T P AU - Mennucci, M D AD - Argonne National Laboratory, Chicago, IL, USA. Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 795 EP - 797 VL - 72 IS - 5 SN - 0017-9078, 0017-9078 KW - Cobalt Radioisotopes KW - 0 KW - Radioisotopes KW - Index Medicus KW - Humans KW - Reference Standards KW - Radiation Monitoring -- standards KW - Power Plants KW - Radioisotopes -- analysis KW - Whole-Body Counting UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78956485?accountid=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=An+intercomparison+of+whole-body+counters+at+participating+region+III+nuclear+power+plants.&rft.au=Neeson%2C+D+C%3BKessler%2C+W+V%3BLandolt%2C+R+R%3BBarton%2C+T+P%3BMennucci%2C+M+D&rft.aulast=Neeson&rft.aufirst=D&rft.date=1997-05-01&rft.volume=72&rft.issue=5&rft.spage=795&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 - 1997-05-05 N1 - Date created - 1997-05-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Age and isotopic constraints on Pleistocene pluvial episodes in the Western Desert, Egypt AN - 52693895; 1997-055681 AB - North Africa has undergone drastic climatic changes over the past several hundred thousand years. The timing of humid intervals called pluvials was investigated by uranium-series disequilibrium dating of travertines from the Kurkur Oasis, Western Desert, Egypt. The youngest and best dated travertines (70-160 ka) are found in Wadi Kurkur and include spring and lacustrine units exposed as 2 to 3m high terraces. Travertines having an age of approximately 191-220 ka are exposed by differential erosion as linear mounds produced by spring systems over fracture zones in ancient wadis. The oldest travertines, having ages >260 ka, are extensive, cap limestone units above the oasis, and were deposited in paludal and lacustrine environments. Oxygen isotope ratios were measured for the wadi travertines (delta (super 18) O values ranging from 16.7 to 19.1 per mil SMOW) and for spring mound travertines (18.5-20.5 per mil). Equilibrium oxygen isotope fractionation calculations indicate that the Kurkur travertines were deposited from waters having delta (super 18) O values similar to ancient Western Desert groundwaters ( approximately -11 per mil, Sonntag et al., 1978a,b; Thorweithe, 1990; Sultan et al., 1996). The ages of the travertines correspond to times of monsoonal maxima, eustatic sea level high stands and interglacial maxima. Rainfall producing these groundwaters (and travertines) was significantly fractionated during atmospheric transport, in contrast to modern meteoric waters (-2.09 per mil, Joseph et al., 1992), implying a distant source for the pluvial waters. Increased precipitation, recharge of Western Desert groundwaters, and resultant travertine deposition are interpreted to be consequences of Milankovitch insolation cycle forcing, through enhanced Atlantic and Indian Ocean monsoons during interglacial time periods. JF - Palaeogeography, Palaeoclimatology, Palaeoecology AU - Crombie, M K AU - Arvidson, R E AU - Sturchio, N C AU - El Alfy, Z AU - Abu Zeid, K Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 337 EP - 355 PB - Elsevier, Amsterdam VL - 130 IS - 1-4 SN - 0031-0182, 0031-0182 KW - oxygen KW - North Africa KW - isotopes KW - paleoclimatology KW - stable isotopes KW - variations KW - U-234/Th-230 KW - Cenozoic KW - sedimentary rocks KW - radioactive isotopes KW - carbon KW - interpretation KW - Quaternary KW - Th-232/Th-230 KW - isotope ratios KW - C-13/C-12 KW - Western Desert KW - O-18/O-16 KW - Egypt KW - metals KW - travertine KW - thorium KW - Pleistocene KW - petrography KW - Africa KW - uranium KW - U-238/U-234 KW - carbonate rocks KW - actinides KW - 24:Quaternary geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52693895?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.atitle=Age+and+isotopic+constraints+on+Pleistocene+pluvial+episodes+in+the+Western+Desert%2C+Egypt&rft.au=Crombie%2C+M+K%3BArvidson%2C+R+E%3BSturchio%2C+N+C%3BEl+Alfy%2C+Z%3BAbu+Zeid%2C+K&rft.aulast=Crombie&rft.aufirst=M&rft.date=1997-05-01&rft.volume=130&rft.issue=1-4&rft.spage=337&rft.isbn=&rft.btitle=&rft.title=Palaeogeography%2C+Palaeoclimatology%2C+Palaeoecology&rft.issn=00310182&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00310182 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 - 1997-01-01 N1 - Number of references - 53 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PPPYAB N1 - SubjectsTermNotLitGenreText - actinides; Africa; C-13/C-12; carbon; carbonate rocks; Cenozoic; Egypt; interpretation; isotope ratios; isotopes; metals; North Africa; O-18/O-16; oxygen; paleoclimatology; petrography; Pleistocene; Quaternary; radioactive isotopes; sedimentary rocks; stable isotopes; Th-232/Th-230; thorium; travertine; U-234/Th-230; U-238/U-234; uranium; variations; Western Desert ER - TY - JOUR T1 - Surveillance of site A and plot M; Report for 1996 AN - 52414719; 2000-000187 AB - The results of the environmental surveillance program conducted at Site A/Plot M in the Palos Forest Preserve area for 1996 are presented. The surveillance program is the ongoing remedial action that resulted from the 1976-1978 radiological characterization of the site. That study determined that very low levels of hydrogen-3 (as tritiated water) had migrated from the burial ground and were present in two nearby hand-pumped picnic wells. The current program consists of sample collection and analysis of air, surface and subsurface water, and bottom sediment. The results of the analyses are used to (1) monitor the migration pathway of water from the burial ground (Plot M) to the hand-pumped picnic wells, (2) establish if buried radionuclides other than hydrogen-3 have migrated, and (3) generally characterize the radiological environment of the area. Hydrogen-3 in the Red Gate Woods picnic wells was still detected this year, but the average and maximum concentrations were significantly less than found earlier. Tritiated water continues to be detected in a number of wells, boreholes, dolomite holes, and a surface stream. For many years it was the only radionuclide found to have migrated in measurable quantities. Analyses since 1984 have indicated the presence of low levels of strontium-90 in water from a number of boreholes next to Plot M. The available data does not allow a firm conclusion as to whether the presence of this nuclide represents recent migration or movement that may have occurred before Plot M was capped. The results of the surveillance program continue to indicate that the radioactivity remaining at Site A/Plot M does not endanger the health or safety of the public visiting the site, using the picnic area, or living in the vicinity. JF - ANL (Argonne National Laboratory) AU - Golchert, N W Y1 - 1997/05// PY - 1997 DA - May 1997 SP - 106 PB - Argonne National Laboratory, Argonne, IL SN - 0192-3188, 0192-3188 KW - Sr-90 KW - alkaline earth metals KW - isotopes KW - site exploration KW - pollutants KW - pollution KW - tritium KW - migration of elements KW - remediation KW - radioactive waste KW - ground water KW - radioactive isotopes KW - detection KW - metals KW - hydrogen KW - waste disposal KW - underground disposal KW - strontium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52414719?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=Golchert%2C+N+W&rft.aulast=Golchert&rft.aufirst=N&rft.date=1997-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Surveillance+of+site+A+and+plot+M%3B+Report+for+1996&rft.title=Surveillance+of+site+A+and+plot+M%3B+Report+for+1996&rft.issn=01923188&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97006289NEG, Springfield, VA, United States N1 - PubXState - IL N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 N1 - CODEN - XANLDG N1 - SubjectsTermNotLitGenreText - alkaline earth metals; detection; ground water; hydrogen; isotopes; metals; migration of elements; pollutants; pollution; radioactive isotopes; radioactive waste; remediation; site exploration; Sr-90; strontium; tritium; underground disposal; waste disposal ER - TY - JOUR T1 - Spectroscopic characterization of quinone-site mutants of the bacterial photosynthetic reaction center AN - 1315604982; 13832279 AB - Site-specific mutations in the quinone binding sites of the photosynthetic reaction center (RC) protein complexes of Rhodobacter (R.) capsulatus caused pronounced effects on sequential electron transfer. Conserved residues that break the twofold symmetry in this region of the RC - M246Ala and M247Ala in the QA binding pocket, and L212Glu and L213Asp in the QB binding pocket - were targeted. We constructed a QB-site mutant, L212Glu-L213Asp 1 Ala-Ala, and a QA-site mutant, M246Ala-M247Ala 1 Glu-Asp, to partially balance the differences in charge distribution normally found between the two quinone binding sites. In addition, two photocompetent revertants were isolated from the photosynthetically-incompetent M246Glu-M247Asp mutant: M246Ala-M247Asp and M246Gly-M247Asp. Sequential electron transfer was investigated by continuous light excitation and time-resolved electron paramagnetic resonance (EPR), and time-resolved optical techniques. Several lines of EPR evidence suggested that the forward electron transfer rate to QA, kQ, was slowed in those strains containing altered QA sites. The slower rates of secondary electron transfer were confirmed by time-resolved optical results with the M246Glu-M247Asp mutations in the QA site resulting in a dramatically lowered secondary electron transfer efficiency [kQ < (2 ns)-1] in comparison with either the native R. capsulatus RC or the QB site mutant [kQ - (200 ps)-1]. Secondary electron transfer in the two revertants was intermediate between that of the native RC and the QA mutant. The P+ QA- 1 PQA charge recombination rates were also changed in the strains that carried altered QA sites. We show that local mutations in the QA site, presumably through local electrostatic changes, significantly alter binding and electron transfer properties of QA. JF - Photosynthesis Research AU - Laible, Philip D AU - Zhang, Yuenian AU - Morris, Andrea L AU - Snyder, Seth W AU - Ainsworth, Clint AU - Greenfield, Scott R AU - Wasielewski, Michael R AU - Parot, Pierre AU - Schoepp, Barbara AU - Schiffer, Marianne AU - Hanson, Deborah K AU - Thurnauer, Marion C AD - Chemistry Division, Argonne National Laboratory, Argonne, IL, 60439, USA PY - 1997 SP - 93 EP - 103 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 52 IS - 2 SN - 0166-8595, 0166-8595 KW - Microbiology Abstracts B: Bacteriology KW - Rhodobacter KW - E.S.R. KW - Bacteria KW - Recombination KW - Photosynthesis KW - Quinone KW - Electron transfer KW - Mutation KW - Revertants KW - Reaction centers KW - Light effects KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1315604982?accountid=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=Photosynthesis+Research&rft.atitle=Spectroscopic+characterization+of+quinone-site+mutants+of+the+bacterial+photosynthetic+reaction+center&rft.au=Laible%2C+Philip+D%3BZhang%2C+Yuenian%3BMorris%2C+Andrea+L%3BSnyder%2C+Seth+W%3BAinsworth%2C+Clint%3BGreenfield%2C+Scott+R%3BWasielewski%2C+Michael+R%3BParot%2C+Pierre%3BSchoepp%2C+Barbara%3BSchiffer%2C+Marianne%3BHanson%2C+Deborah+K%3BThurnauer%2C+Marion+C&rft.aulast=Laible&rft.aufirst=Philip&rft.date=1997-05-01&rft.volume=52&rft.issue=2&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Photosynthesis+Research&rft.issn=01668595&rft_id=info:doi/10.1023%2FA%3A1005806700335 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-03-01 N1 - Last updated - 2016-01-21 N1 - SubjectsTermNotLitGenreText - E.S.R.; Recombination; Photosynthesis; Quinone; Electron transfer; Revertants; Mutation; Light effects; Reaction centers; Rhodobacter; Bacteria DO - http://dx.doi.org/10.1023/A:1005806700335 ER - TY - JOUR T1 - Earth and Planetary Science Letters AN - 52697425; 1997-049253 AB - Additional data are presented to confirm the validity of the implied mechanism for U transfer to the sediment, fluvial transport of U and its use as a biologically independent proxy for regional palaeoclimate change. JF - Earth and Planetary Science Letters AU - Anderson, Robert F AU - Edgington, D N AU - Robbins, J A AU - Colman, S M AU - Orlandini, K A AU - Gustin, M P AU - Klump, J V AU - Granina, L Z Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 395 EP - 404 PB - Elsevier, Amsterdam VL - 148 IS - 1-2 SN - 0012-821X, 0012-821X KW - sediment-water interface KW - enrichment KW - Russian Federation KW - algae KW - paleoclimatology KW - uranium disequilibrium KW - Cenozoic KW - diatoms KW - Commonwealth of Independent States KW - paleolimnology KW - sediments KW - Asia KW - geochemistry KW - lacustrine sedimentation KW - Plantae KW - Quaternary KW - interglacial environment KW - sedimentation KW - metals KW - upper Quaternary KW - uranium KW - Lake Baikal KW - actinides KW - microfossils KW - authigenesis KW - 24:Quaternary geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52697425?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Earth+and+Planetary+Science+Letters&rft.au=Anderson%2C+Robert+F%3BEdgington%2C+D+N%3BRobbins%2C+J+A%3BColman%2C+S+M%3BOrlandini%2C+K+A%3BGustin%2C+M+P%3BKlump%2C+J+V%3BGranina%2C+L+Z&rft.aulast=Anderson&rft.aufirst=Robert&rft.date=1997-04-01&rft.volume=148&rft.issue=1-2&rft.spage=395&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2FS0012-821X%2897%2900033-2 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom | Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 32 N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Edgington, D. N., et al., Earth Planet. Sci. Lett., Vol. 142, p. 29, 1996 N1 - Last updated - 2014-12-15 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - actinides; algae; Asia; authigenesis; Cenozoic; Commonwealth of Independent States; diatoms; enrichment; geochemistry; interglacial environment; lacustrine sedimentation; Lake Baikal; metals; microfossils; paleoclimatology; paleolimnology; Plantae; Quaternary; Russian Federation; sediment-water interface; sedimentation; sediments; upper Quaternary; uranium; uranium disequilibrium DO - http://dx.doi.org/10.1016/S0012-821X(97)00033-2 ER - TY - JOUR T1 - Multimedia benchmarking analysis for three risk assessment models; RESRAD, MMSOILS, and MEPAS AN - 52690650; 1997-059010 JF - Risk Analysis AU - Mills, William B AU - Cheng, J J AU - Droppo, James G, Jr AU - Faillace, Ernest R AU - Gnanapragasam, Emmanuel K AU - Johns, Robert A AU - Laniak, Gerard F AU - Lew, Christine S AU - Strenge, Dennis L AU - Sutherland, Jonna F AU - Whelan, Gene AU - Yu, Charley Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 187 EP - 201 PB - Society for Risk Analysis, New York-London VL - 17 IS - 2 SN - 0272-4332, 0272-4332 KW - soils KW - isotopes KW - pollutants KW - landfills KW - surface water KW - unsaturated zone KW - RESRAD KW - MMSOILS KW - models KW - saturated zone KW - radioactive isotopes KW - metals KW - risk assessment KW - uranium KW - U-238 KW - actinides KW - MEPAS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52690650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Risk+Analysis&rft.atitle=Multimedia+benchmarking+analysis+for+three+risk+assessment+models%3B+RESRAD%2C+MMSOILS%2C+and+MEPAS&rft.au=Mills%2C+William+B%3BCheng%2C+J+J%3BDroppo%2C+James+G%2C+Jr%3BFaillace%2C+Ernest+R%3BGnanapragasam%2C+Emmanuel+K%3BJohns%2C+Robert+A%3BLaniak%2C+Gerard+F%3BLew%2C+Christine+S%3BStrenge%2C+Dennis+L%3BSutherland%2C+Jonna+F%3BWhelan%2C+Gene%3BYu%2C+Charley&rft.aulast=Mills&rft.aufirst=William&rft.date=1997-04-01&rft.volume=17&rft.issue=2&rft.spage=187&rft.isbn=&rft.btitle=&rft.title=Risk+Analysis&rft.issn=02724332&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. 9 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RIANDF N1 - SubjectsTermNotLitGenreText - actinides; isotopes; landfills; MEPAS; metals; MMSOILS; models; pollutants; radioactive isotopes; RESRAD; risk assessment; saturated zone; soils; surface water; U-238; unsaturated zone; uranium ER - TY - JOUR T1 - An overview of a multimedia benchmarking analysis for three risk assessment models; RESRAD, MMSOILS, and MEPAS AN - 52689829; 1997-059011 JF - Risk Analysis AU - Laniak, Gerard F AU - Droppo, James G AU - Faillace, Ernest R AU - Gnanapragasam, Emmanuel K AU - Mills, William B AU - Strenge, Dennis L AU - Whelan, Gene AU - Yu, Charley Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 203 EP - 214 PB - Society for Risk Analysis, New York-London VL - 17 IS - 2 SN - 0272-4332, 0272-4332 KW - soils KW - isotopes KW - pollutants KW - moisture KW - regulations KW - bench marks KW - surface water KW - government agencies KW - unsaturated zone KW - U. S. Environmental Protection Agency KW - pollution KW - RESRAD KW - MMSOILS KW - evapotranspiration KW - irrigation KW - models KW - radioactive isotopes KW - risk assessment KW - MEPAS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52689829?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Risk+Analysis&rft.atitle=An+overview+of+a+multimedia+benchmarking+analysis+for+three+risk+assessment+models%3B+RESRAD%2C+MMSOILS%2C+and+MEPAS&rft.au=Laniak%2C+Gerard+F%3BDroppo%2C+James+G%3BFaillace%2C+Ernest+R%3BGnanapragasam%2C+Emmanuel+K%3BMills%2C+William+B%3BStrenge%2C+Dennis+L%3BWhelan%2C+Gene%3BYu%2C+Charley&rft.aulast=Laniak&rft.aufirst=Gerard&rft.date=1997-04-01&rft.volume=17&rft.issue=2&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Risk+Analysis&rft.issn=02724332&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 9 N1 - Document feature - 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - RIANDF N1 - SubjectsTermNotLitGenreText - bench marks; evapotranspiration; government agencies; irrigation; isotopes; MEPAS; MMSOILS; models; moisture; pollutants; pollution; radioactive isotopes; regulations; RESRAD; risk assessment; soils; surface water; U. S. Environmental Protection Agency; unsaturated zone ER - TY - JOUR T1 - The role of H (sub 2) O in minerals containing the uranyl ion AN - 52600512; 1998-038560 JF - Eos, Transactions, American Geophysical Union AU - Finch, Robert J AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 328 PB - American Geophysical Union, Washington, DC VL - 78 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - water KW - uranyl ion KW - crystal structure KW - bonding KW - thermodynamic properties KW - crystal chemistry KW - geochemistry KW - weathering KW - uranium minerals KW - 01A:General mineralogy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52600512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+H+%28sub+2%29+O+in+minerals+containing+the+uranyl+ion&rft.au=Finch%2C+Robert+J%3BAnonymous&rft.aulast=Finch&rft.aufirst=Robert&rft.date=1997-04-01&rft.volume=78&rft.issue=17%2C+Suppl.&rft.spage=328&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, 1997 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bonding; crystal chemistry; crystal structure; geochemistry; thermodynamic properties; uranium minerals; uranyl ion; water; weathering ER - TY - JOUR T1 - A natural calibration of the zircon saturation thermometer AN - 52596636; 1998-038607 JF - Eos, Transactions, American Geophysical Union AU - Hanchar, J M AU - Watson, E B AU - Anonymous Y1 - 1997/04// PY - 1997 DA - April 1997 SP - 336 PB - American Geophysical Union, Washington, DC VL - 78 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - zircon group KW - silicates KW - experimental studies KW - rhyolites KW - geologic thermometry KW - volcanic rocks KW - igneous rocks KW - natural materials KW - Sierra Madre Occidental KW - zircon KW - calibration KW - temperature KW - electron probe data KW - nesosilicates KW - laboratory studies KW - Mexico KW - saturation KW - orthosilicates KW - crystallization KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52596636?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+natural+calibration+of+the+zircon+saturation+thermometer&rft.au=Hanchar%2C+J+M%3BWatson%2C+E+B%3BAnonymous&rft.aulast=Hanchar&rft.aufirst=J&rft.date=1997-04-01&rft.volume=78&rft.issue=17%2C+Suppl.&rft.spage=336&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, 1997 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - calibration; crystallization; electron probe data; experimental studies; geologic thermometry; igneous rocks; laboratory studies; Mexico; natural materials; nesosilicates; orthosilicates; rhyolites; saturation; Sierra Madre Occidental; silicates; temperature; volcanic rocks; zircon; zircon group ER - TY - JOUR T1 - A two-dimensional electrophoresis database of human breast epithelial cell proteins. AN - 78991518; 9150944 AB - As sequencing of the human genome progresses, attention is turning to when and where specific genes are being expressed and how that expression is regulated. The human breast, with the highly specific, but transient, function of milk production (lactation), exemplifies human gene regulation. The molecular mechanisms for the dramatic structural and functional changes involved in shifting from lactation-capable to lactation-incapable tissue are poorly understood, as are the mechanisms that result in deviation from normal breast cell growth into different types of breast neoplasms. We are using quantitative two-dimensional electrophoresis (2-DE) to determine which proteins are present in different types of human breast cells (milk-producing and -nonproducing, estrogen-receptor-positive and -negative, normal and malignant) and which proteins change in abundance in response to stimuli that trigger cell differentiation, growth, or death. A composite map of proteins found in human breast cells is being generated and used as an index of human genes that are differentially expressed, both qualitatively and quantitatively. Proteins found in 15 different types of human breast cells, two from healthy tissue (from milk and reduction mammoplasty tissue) and 13 from tumor tissue, are now included in the composite map. Copies of the human breast epithelial cell protein map are available on the World Wide Web (URL: http:(/)/www.anl.gov/CMB/PMG/ projects/index_hbreast.html) with links to quantitative data and identifications for proteins found to be differentially expressed in these epithelial cells. Links to the Swiss-Prot and enzyme metabolic pathway databases are also provided. The World Wide Web presentation is designed to allow public access to the available 2-DE data together with logical connections to databases providing genome-related information. JF - Electrophoresis AU - Giometti, C S AU - Williams, K AU - Tollaksen, S L AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439, USA. csgiometti@anl.gov PY - 1997 SP - 573 EP - 581 VL - 18 IS - 3-4 SN - 0173-0835, 0173-0835 KW - Neoplasm Proteins KW - 0 KW - Proteins KW - IMP Dehydrogenase KW - EC 1.1.1.205 KW - Tetradecanoylphorbol Acetate KW - NI40JAQ945 KW - Index Medicus KW - Tumor Cells, Cultured KW - Epithelial Cells KW - Humans KW - Tetradecanoylphorbol Acetate -- pharmacology KW - IMP Dehydrogenase -- analysis KW - Female KW - Cell Line KW - Electrophoresis, Gel, Two-Dimensional -- methods KW - Computer Communication Networks KW - Breast -- cytology KW - Databases, Factual KW - Breast -- chemistry KW - Proteins -- analysis KW - Neoplasm Proteins -- analysis KW - Epithelium -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78991518?accountid=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=Electrophoresis&rft.atitle=A+two-dimensional+electrophoresis+database+of+human+breast+epithelial+cell+proteins.&rft.au=Giometti%2C+C+S%3BWilliams%2C+K%3BTollaksen%2C+S+L&rft.aulast=Giometti&rft.aufirst=C&rft.date=1997-03-01&rft.volume=18&rft.issue=3-4&rft.spage=573&rft.isbn=&rft.btitle=&rft.title=Electrophoresis&rft.issn=01730835&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-07-28 N1 - Date created - 1997-07-28 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - A study of organo-hectorite clay crystallization AN - 52715846; 1997-038849 AB - A method has been developed to synthesize organo-hectorite clays directly from a Mg-silicate gel containing organic or organometallic molecules that are expected to be incorporated within the interlayer space. Complete crystallization occurs upon aqueous reflux for 48 h. The progress of clay layer formation was monitored by X-ray powder diffraction (XRD), differential thermal gravimetry (DTG), and infrared (IR) spectroscopy. Evidence of clay XRD peaks occurs after just 4 h of hydrothermal treatment, and Mg(OH) (sub 2) is no longer observable after 14 h. Observable changes in DTG and IR occur at about this time as well. Warren line-shape analysis of the 110 reflection indicates that when growth is complete the clay lamellae are on average approximately 50% and 25% of the size of natural hectorites and montmorillonites, respectively. The N (sub 2) BET surface areas for all materials are also compared. Small angle neutron scattering shows that addition of tetraethyl ammonium (TEA) ions does not alter the structural integrity over that of the purely inorganic form of Li-hectorite, but that use of a cationic polymer does significantly alter the microstructure. The effect of temperature is critical, for at room temperature only the layered Mg hydroxide mineral brucite crystallizes unless very long time scales are used. The crystallizations carried out at room temperature show that clay will form after about 3 months, but that the presence of organics (at least TEA) acts to hinder this process greatly. The role of the organic molecules on silicate clay layer formation is compared with the role of organics in zeolite synthesis. JF - Clay Minerals AU - Carrado, K A AU - Thiyagarajan, P AU - Song, K Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 29 EP - 40 PB - Mineralogical Society, London VL - 32 IS - 1 SN - 0009-8558, 0009-8558 KW - silicates KW - experimental studies KW - colloidal materials KW - organo-hectorite KW - X-ray diffraction data KW - grain size KW - clay mineralogy KW - hectorite KW - gels KW - infrared spectra KW - clay minerals KW - crystallization KW - sheet silicates KW - spectra KW - synthesis KW - DTA data KW - montmorillonite KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52715846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clay+Minerals&rft.atitle=A+study+of+organo-hectorite+clay+crystallization&rft.au=Carrado%2C+K+A%3BThiyagarajan%2C+P%3BSong%2C+K&rft.aulast=Carrado&rft.aufirst=K&rft.date=1997-03-01&rft.volume=32&rft.issue=1&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Clay+Minerals&rft.issn=00098558&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 22 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - CLMIAF N1 - SubjectsTermNotLitGenreText - clay mineralogy; clay minerals; colloidal materials; crystallization; DTA data; experimental studies; gels; grain size; hectorite; infrared spectra; montmorillonite; organo-hectorite; sheet silicates; silicates; spectra; synthesis; X-ray diffraction data ER - TY - JOUR T1 - The isotopic composition of molybdenum in single presolar silicon carbide grains AN - 52688877; 1997-059732 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nicolussi, G K AU - Davis, A M AU - Pellin, M J AU - Lewis, R S AU - Clayton, R N AU - Amari, S AU - Black, David AU - Blanchard, Douglas Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 1021 EP - 1022 PB - Lunar and Planetary Science Conference, Houston, TX VL - 28, Part 2 KW - meteorites KW - stony meteorites KW - silicon carbide KW - isotopes KW - molybdenum KW - metals KW - cosmochemistry KW - CM chondrites KW - carbonaceous chondrites KW - chondrites KW - Murchison Meteorite KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52688877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+isotopic+composition+of+molybdenum+in+single+presolar+silicon+carbide+grains&rft.au=Nicolussi%2C+G+K%3BDavis%2C+A+M%3BPellin%2C+M+J%3BLewis%2C+R+S%3BClayton%2C+R+N%3BAmari%2C+S%3BBlack%2C+David%3BBlanchard%2C+Douglas&rft.aulast=Nicolussi&rft.aufirst=G&rft.date=1997-03-01&rft.volume=28%2C+Part+2&rft.issue=&rft.spage=1021&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 28th Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 7 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; CM chondrites; cosmochemistry; isotopes; metals; meteorites; molybdenum; Murchison Meteorite; silicon carbide; stony meteorites ER - TY - JOUR T1 - s-process zirconium in individual presolar silicon carbide grains AN - 52687755; 1997-059733 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Nicolussi, G K AU - Davis, A M AU - Pellin, M J AU - Lewis, R S AU - Clayton, R N AU - Amari, S AU - Black, David AU - Blanchard, Douglas Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 1023 EP - 1024 PB - Lunar and Planetary Science Conference, Houston, TX VL - 28, Part 2 KW - stony meteorites KW - isotopes KW - zirconium KW - cosmochemistry KW - carbonaceous chondrites KW - Murchison Meteorite KW - meteorites KW - Zr-96 KW - silicon carbide KW - metals KW - CM chondrites KW - chondrites KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52687755?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=s-process+zirconium+in+individual+presolar+silicon+carbide+grains&rft.au=Nicolussi%2C+G+K%3BDavis%2C+A+M%3BPellin%2C+M+J%3BLewis%2C+R+S%3BClayton%2C+R+N%3BAmari%2C+S%3BBlack%2C+David%3BBlanchard%2C+Douglas&rft.aulast=Nicolussi&rft.aufirst=G&rft.date=1997-03-01&rft.volume=28%2C+Part+2&rft.issue=&rft.spage=1023&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 28th Lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbonaceous chondrites; chondrites; CM chondrites; cosmochemistry; isotopes; metals; meteorites; Murchison Meteorite; silicon carbide; stony meteorites; zirconium; Zr-96 ER - TY - JOUR T1 - Characterization of the hydrogeologic framework at Aberdeen Proving Ground, Maryland, using marine seismic reflection profiling AN - 50907117; 2002-000401 AB - High-resolution, single-channel, marine seismic reflection profiles were collected in the shallow waters of the Chesapeake Bay estuarine system surrounding the Edgewood Area of Aberdeen Proving Ground, MD. This data set furthers our understanding of the hydrogeologic framework by identifying paleochannel locations, delineating paleochannel geometries, and characterizing relationships between multiple generations of paleochannels. Fine-grained bottom sediment resting in deeper, low-energy waters were found to block high-frequency acoustic wave transmission; therefore, data acquisition is limited to areas near-shore were water depths are less than three meters. Approximately 120 km of shoreline were surveyed yielding 50 km of high quality data. Three major reflectors are identified as erosional unconformities, and are interpreted to be Pleistocene paleochannel surfaces. Paleochannels are found to be spatially and physiographically associated with all modern subaerial lowlands and their local drainage systems. The marine seismic reflection data provide strong evidence that present-day lowlands are underlain by an aquifer dominated by paleochannels. Paleochannel configurations, together with paleochannel-fill models, indicate these paleochannels have the potential support vertical and horizontal contaminant migration. JF - Proceedings of SAGEEP AU - Benson, Matthew A AU - Carpenter, Philip J AU - McGinnis, Lyle D AU - Sylwester, Richard E AU - Bell, Ronald S Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 453 EP - 462 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1997 KW - United States KW - Chesapeake Bay KW - seismic profiles KW - geophysical surveys KW - Aberdeen Proving Ground KW - surface water KW - paleochannels KW - geophysical methods KW - characterization KW - pollution KW - reflection methods KW - seismic methods KW - ground water KW - marine environment KW - surveys KW - Harford County Maryland KW - geophysical profiles KW - Maryland KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50907117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Characterization+of+the+hydrogeologic+framework+at+Aberdeen+Proving+Ground%2C+Maryland%2C+using+marine+seismic+reflection+profiling&rft.au=Benson%2C+Matthew+A%3BCarpenter%2C+Philip+J%3BMcGinnis%2C+Lyle+D%3BSylwester%2C+Richard+E%3BBell%2C+Ronald+S&rft.aulast=Benson&rft.aufirst=Matthew&rft.date=1997-03-01&rft.volume=1997&rft.issue=&rft.spage=453&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; SAGEEP'97 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 8 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aberdeen Proving Ground; characterization; Chesapeake Bay; geophysical methods; geophysical profiles; geophysical surveys; ground water; Harford County Maryland; marine environment; Maryland; paleochannels; pollution; reflection methods; seismic methods; seismic profiles; surface water; surveys; United States ER - TY - JOUR T1 - Electromagnetic investigation at the Combat Maneuver Training Center, Hohenfels, Germany AN - 50901201; 2002-000415 AB - Electromagnetic surveys were conducted at the Combat Maneuver Training Center (CMTC), Hohenfels, Germany to detect zones where solution cavities develop within lowland areas of the karst valley systems. Geologic models indicate that solution activity occurs at the loess-bedrock interface, and is concentrated along loess-filled fracture trends within the underlying carbonate bedrock. Soil arches that develop along these fracture trends have the potential to fail catastrophically, posing a considerable degree of danger to current training activities. Rapid, continuously recording electromagnetic instruments provide an economical solution for locating zones of high conductivity associated with loess-filled fractures. The electromagnetic surveys delineated high-conductivity trends interpreted to be fracture-controlled. In many instances dolines were observed either along or immediately adjacent to these conductivity lineaments. Analysis of anomaly maps indicate that high-conductivity lineaments are aligned subparallel to fracture and joint orientations measured in nearby outcrops. These associations are the basis for predicting locations where solution cavity collapse and doline development will occur in the future. Information derived from the EM data can be extended directly to hydrologic modeling and to safety programs for military training at the CMTC. JF - Proceedings of SAGEEP AU - Thompson, Mike D AU - Benson, Matthew A AU - McGinnis, Lyle D AU - Glennon, M A AU - Padar, C A AU - Miller, S F AU - Heigold, P C AU - Boehm, Albert AU - Bell, Ronald S Y1 - 1997/03// PY - 1997 DA - March 1997 SP - 587 EP - 595 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1997 KW - geophysical surveys KW - geophysical methods KW - Hohenfels Germany KW - karst KW - Europe KW - solution cavities KW - Hohenfels Combat Maneuver Training Center KW - detection KW - Central Europe KW - electromagnetic methods KW - surveys KW - military facilities KW - Germany KW - solution features KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50901201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Electromagnetic+investigation+at+the+Combat+Maneuver+Training+Center%2C+Hohenfels%2C+Germany&rft.au=Thompson%2C+Mike+D%3BBenson%2C+Matthew+A%3BMcGinnis%2C+Lyle+D%3BGlennon%2C+M+A%3BPadar%2C+C+A%3BMiller%2C+S+F%3BHeigold%2C+P+C%3BBoehm%2C+Albert%3BBell%2C+Ronald+S&rft.aulast=Thompson&rft.aufirst=Mike&rft.date=1997-03-01&rft.volume=1997&rft.issue=&rft.spage=587&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; SAGEEP'97 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2002-01-01 N1 - Number of references - 9 N1 - PubXState - CO N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Central Europe; detection; electromagnetic methods; Europe; geophysical methods; geophysical surveys; Germany; Hohenfels Combat Maneuver Training Center; Hohenfels Germany; karst; military facilities; solution cavities; solution features; surveys ER - TY - JOUR T1 - The rare earth element geochemistry of acid-sulphate and acid-sulphate-chloride geothermal systems from Yellowstone National Park, Wyoming, USA AN - 52726707; 1997-030473 AB - Analyses are presented of REE and major elements in the geothermal waters, associated sinters and volcanic rocks (tuffs, flow-breccias and rhyolites) from this area. The volcanic rocks contain 222-347 ppm REE and their chrondrite-normalized patterns with LREE >> HREE and -ve Eu anomalies agreeing with those for the upper continental crust. The REE are mobile during water-rock interaction, and are removed during alteration processes except for Eu which is enriched in the altered rocks. The REE are released into solution during dissolution of minerals and/or glass from the rhyolites by low-pH fluids; there is little REE fractionation during fluid/rock interaction indicating that the main complexing agent is sulphate or that REE mobility is not increased by complexing agents. The main factor affecting the mobilization and transport of REE is pH. JF - Geochimica et Cosmochimica Acta AU - Lewis, Anita J AU - Palmer, Martin R AU - Sturchio, Neil C AU - Kemp, Anthony J Y1 - 1997/02// PY - 1997 DA - February 1997 SP - 695 EP - 706 PB - Pergamon, Oxford VL - 61 IS - 4 SN - 0016-7037, 0016-7037 KW - United States KW - inductively coupled plasma methods KW - volcanic rocks KW - igneous rocks KW - halogens KW - national parks KW - mass spectra KW - ground water KW - sedimentary rocks KW - geothermal systems KW - chloride ion KW - Yellowstone National Park KW - geysers KW - springs KW - acidic composition KW - spectra KW - rare earths KW - trace elements KW - geochemistry KW - siliceous sinter KW - chlorine KW - chemically precipitated rocks KW - sulfate ion KW - minor elements KW - Park County Wyoming KW - public lands KW - hydrochemistry KW - thermal waters KW - Wyoming KW - metals KW - Teton County Wyoming KW - hot springs KW - spectroscopy KW - northwestern Wyoming KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52726707?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+rare+earth+element+geochemistry+of+acid-sulphate+and+acid-sulphate-chloride+geothermal+systems+from+Yellowstone+National+Park%2C+Wyoming%2C+USA&rft.au=Lewis%2C+Anita+J%3BPalmer%2C+Martin+R%3BSturchio%2C+Neil+C%3BKemp%2C+Anthony+J&rft.aulast=Lewis&rft.aufirst=Anita&rft.date=1997-02-01&rft.volume=61&rft.issue=4&rft.spage=695&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2896%2900384-5 L2 - http://www.sciencedirect.com/science/journal/00167037 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 - 1997-01-01 N1 - Number of references - 37 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acidic composition; chemically precipitated rocks; chloride ion; chlorine; geochemistry; geothermal systems; geysers; ground water; halogens; hot springs; hydrochemistry; igneous rocks; inductively coupled plasma methods; mass spectra; metals; minor elements; national parks; northwestern Wyoming; Park County Wyoming; public lands; rare earths; sedimentary rocks; siliceous sinter; spectra; spectroscopy; springs; sulfate ion; Teton County Wyoming; thermal waters; trace elements; United States; volcanic rocks; Wyoming; Yellowstone National Park DO - http://dx.doi.org/10.1016/S0016-7037(96)00384-5 ER - TY - JOUR T1 - Physical and chemical characterization of actinides in soil from Johnston Atoll AN - 52657130; 1997-078274 JF - Environmental Science & Technology, ES & T AU - Wolf, Stephen F AU - Bates, John K AU - Buck, Edgar C AU - Dietz, Nancy L AU - Fortner, Jeffrey A AU - Brown, Neil R Y1 - 1997/02// PY - 1997 DA - February 1997 SP - 467 EP - 471 PB - American Chemical Society, Washington, DC VL - 31 IS - 2 SN - 0013-936X, 0013-936X KW - isotopes KW - site exploration KW - plutonium KW - Am-241 KW - reefs KW - remediation KW - Johnston Atoll KW - radioactive isotopes KW - chemical properties KW - nuclear explosions KW - mobility KW - soils KW - granulometry KW - monitoring KW - explosions KW - pollutants KW - pollution KW - detection KW - atolls KW - metals KW - americium KW - Oceania KW - Polynesia KW - actinides KW - SEM data KW - Pu-241 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52657130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Physical+and+chemical+characterization+of+actinides+in+soil+from+Johnston+Atoll&rft.au=Wolf%2C+Stephen+F%3BBates%2C+John+K%3BBuck%2C+Edgar+C%3BDietz%2C+Nancy+L%3BFortner%2C+Jeffrey+A%3BBrown%2C+Neil+R&rft.aulast=Wolf&rft.aufirst=Stephen&rft.date=1997-02-01&rft.volume=31&rft.issue=2&rft.spage=467&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 - 1997-01-01 N1 - Number of references - 26 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - actinides; Am-241; americium; atolls; chemical properties; detection; explosions; granulometry; isotopes; Johnston Atoll; metals; mobility; monitoring; nuclear explosions; Oceania; plutonium; pollutants; pollution; Polynesia; Pu-241; radioactive isotopes; reefs; remediation; SEM data; site exploration; soils ER - TY - JOUR T1 - Soil heavy metal concentrations; microbial biomass and enzyme activities in a contaminated grassland ecosystem AN - 52478495; 1999-037770 JF - Soil Biology & Biochemistry AU - Kuperman, Roman G AU - Carreiro, Margaret M Y1 - 1997/02// PY - 1997 DA - February 1997 SP - 179 EP - 190 PB - Pergamon, Oxford VL - 29 IS - 2 SN - 0038-0717, 0038-0717 KW - United States KW - Chesapeake Bay KW - biomass KW - Aberdeen Proving Ground KW - ecosystems KW - chemical waste KW - enzymes KW - environmental analysis KW - decontamination KW - Harford County Maryland KW - Maryland KW - discharge KW - heavy metals KW - Atlantic Coastal Plain KW - soils KW - concentration KW - biodegradation KW - soil treatment KW - pollution KW - organic compounds KW - industrial waste KW - military facilities KW - proteins KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52478495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+%26+Biochemistry&rft.atitle=Soil+heavy+metal+concentrations%3B+microbial+biomass+and+enzyme+activities+in+a+contaminated+grassland+ecosystem&rft.au=Kuperman%2C+Roman+G%3BCarreiro%2C+Margaret+M&rft.aulast=Kuperman&rft.aufirst=Roman&rft.date=1997-02-01&rft.volume=29&rft.issue=2&rft.spage=179&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+%26+Biochemistry&rft.issn=00380717&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00380717 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Aberdeen Proving Ground; Atlantic Coastal Plain; biodegradation; biomass; chemical waste; Chesapeake Bay; concentration; decontamination; discharge; ecosystems; environmental analysis; enzymes; Harford County Maryland; heavy metals; industrial waste; Maryland; microorganisms; military facilities; organic compounds; pollution; proteins; soil treatment; soils; United States ER - TY - JOUR T1 - Environmentally acceptable methods control pipeline corrosion at lower cost AN - 222991699 JF - Materials Performance AU - ARGONNE NATIONAL LABORATORY AD - ARGONNE NATIONAL LABORATORY Y1 - 1997/02// PY - 1997 DA - Feb 1997 SP - 71 CY - Houston PB - NACE International VL - 36 IS - 2 SN - 00941492 KW - Metallurgy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/222991699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Asciencejournals&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Materials+Performance&rft.atitle=Environmentally+acceptable+methods+control+pipeline+corrosion+at+lower+cost&rft.au=ARGONNE+NATIONAL+LABORATORY&rft.aulast=ARGONNE+NATIONAL+LABORATORY&rft.aufirst=&rft.date=1997-02-01&rft.volume=36&rft.issue=2&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Materials+Performance&rft.issn=00941492&rft_id=info:doi/ LA - English DB - ProQuest Central N1 - Copyright - Copyright National Association of Corrosion Engineers Feb 1997 N1 - Last updated - 2014-05-23 N1 - CODEN - MTPFBI ER - TY - RPRT T1 - Chemical and isotopic composition of the volcanic-hydrothermal gases from Canary Islands, Spain AN - 898170705; 2011-085479 JF - Volcanic activity and the environment general assembly AU - Salazar, J M AU - Hernandez, P A AU - Sturchio, N C AU - Perez, N M AU - Nakai, S AU - Wakita, H AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 47 KW - isotopes KW - isotope ratios KW - fumaroles KW - C-13/C-12 KW - stable isotopes KW - hydrothermal conditions KW - gases KW - argon KW - Atlantic Ocean Islands KW - Lanzarote KW - Canary Islands KW - He-4/Ne-20 KW - noble gases KW - neon KW - carbon KW - La Palma KW - volcanoes KW - helium KW - chemical composition KW - Grand Canary KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898170705?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=Salazar%2C+J+M%3BHernandez%2C+P+A%3BSturchio%2C+N+C%3BPerez%2C+N+M%3BNakai%2C+S%3BWakita%2C+H%3BAnonymous&rft.aulast=Salazar&rft.aufirst=J&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Chemical+and+isotopic+composition+of+the+volcanic-hydrothermal+gases+from+Canary+Islands%2C+Spain&rft.title=Chemical+and+isotopic+composition+of+the+volcanic-hydrothermal+gases+from+Canary+Islands%2C+Spain&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Chemical and isotopic composition of fumarole gases and spring discharges from Galeras Volcano, Colombia AN - 898170551; 2011-085456 JF - Volcanic activity and the environment general assembly AU - Fischer, T P AU - Williams, S N AU - Sturchio, N C AU - Arehart, G B AU - Stix, J AU - Counce, D AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 41 KW - Andes KW - oxygen KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - Colombia KW - Galeras KW - stable isotopes KW - nitrogen KW - gases KW - carbon dioxide KW - volatiles KW - South America KW - hydrogen KW - carbon KW - deuterium KW - chemical composition KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898170551?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=Fischer%2C+T+P%3BWilliams%2C+S+N%3BSturchio%2C+N+C%3BArehart%2C+G+B%3BStix%2C+J%3BCounce%2C+D%3BAnonymous&rft.aulast=Fischer&rft.aufirst=T&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Chemical+and+isotopic+composition+of+fumarole+gases+and+spring+discharges+from+Galeras+Volcano%2C+Colombia&rft.title=Chemical+and+isotopic+composition+of+fumarole+gases+and+spring+discharges+from+Galeras+Volcano%2C+Colombia&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Volcanic activity and the environment general assembly N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Availability - Unidad Editorial, Gobierno de Jalisco, Guadalajara, Mexico N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Optimization of environmental factors for the biological treatment of trinitrotoluene-contaminated soil. AN - 78787963; 9002439 AB - In earlier studies (Boopathy et al. 1994a, 1994b), soil bacteria present in a TNT-contaminated site removed 2,4,6-trinitrotoluene (TNT). In this study the optimum conditions for the most efficient removal of TNT is discussed. The results suggest that the soil bacterial consortium has an optimal pH range of 6-7. Maximum growth was observed at pH 7. However, the TNT removal rate was higher at pH 6. Studies of the effects of temperature showed that the bacterial consortium had maximum metabolic activity at 20 to 22 degrees C (ambient temperature). At a higher temperature (37 degrees C) the TNT removal rate dropped significantly. The consortium could not use TNT as a nitrogen source but required the addition of ammonium. Optimal growth occurred with 0.25 g/L of ammonium chloride. Growing cells removed TNT significantly faster rates than resting cells or cell-free extract. The operation of soil slurry reactors with the optimal conditions suggested that TNT can be removed effectively from the contaminated sites. These environmental conditions established as optimal can be used to improve the efficiency of large-scale soil slurry reactors for the treatment of soil contaminated with TNT. JF - Archives of environmental contamination and toxicology AU - Boopathy, R AU - Manning, J AU - Kulpa, C F AD - Environmental Research Division, Argonne National Laboratory, Building 203, Argonne, Illinois 60439, USA. Y1 - 1997/01// PY - 1997 DA - January 1997 SP - 94 EP - 98 VL - 32 IS - 1 SN - 0090-4341, 0090-4341 KW - Soil Pollutants KW - 0 KW - Trinitrotoluene KW - 118-96-7 KW - Index Medicus KW - Hydrogen-Ion Concentration KW - Pseudomonas -- cytology KW - Temperature KW - Cell Division -- drug effects KW - Biodegradation, Environmental KW - Pseudomonas -- metabolism KW - Chromatography, High Pressure Liquid KW - Soil Microbiology KW - Soil Pollutants -- metabolism KW - Trinitrotoluene -- toxicity KW - Trinitrotoluene -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78787963?accountid=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=Archives+of+environmental+contamination+and+toxicology&rft.atitle=Optimization+of+environmental+factors+for+the+biological+treatment+of+trinitrotoluene-contaminated+soil.&rft.au=Boopathy%2C+R%3BManning%2C+J%3BKulpa%2C+C+F&rft.aulast=Boopathy&rft.aufirst=R&rft.date=1997-01-01&rft.volume=32&rft.issue=1&rft.spage=94&rft.isbn=&rft.btitle=&rft.title=Archives+of+environmental+contamination+and+toxicology&rft.issn=00904341&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-06-12 N1 - Date created - 1997-06-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Ground-water sapping processes, Western Desert, Egypt AN - 52756734; 1997-020204 AB - Depressions of the Western Desert of Egypt (specifically, Kharga, Farafra, and Kurkur regions) are mainly occupied by shales that are impermeable, but easily erodible by rainfall and runoff, whereas the surrounding plateaus are composed of limestones that are permeable and more resistant to fluvial erosion under semiarid to arid conditions. Scallop-shaped escarpment edges and stubby-looking channels that cut into the plateau units are suggestive of slumping of limestones by ground-water sapping at the limestone-shale interfaces, removal of slump blocks by weathering and fluvial erosion, and consequent scarp retreat. Spring-derived tufa deposits found near the limestone escarpments provide additional evidence for possible ground-water sapping during previous wet periods. A computer simulation model was developed to quantify the ground-water sapping processes, using a cellular automata algorithm with coupled surface runoff and ground-water flow for a permeable, resistant layer over an impermeable, friable unit. Erosion, deposition, slumping, and generation of spring-derived tufas were parametrically modeled. Simulations using geologically reasonable parameters demonstrate that relatively rapid erosion of the shales by surface runoff, ground-water sapping, and slumping of the limestones, and detailed control by hydraulic conductivity inhomogeneities associated with structures explain the depressions, escarpments, and associated landforms and deposits. Using episodic wet pulses, keyed by delta (super 18) O deep-sea core record, the model produced tufa ages that are statistically consistent with the observed U/Th tufa ages. This result supports the hypothesis that northeastern African wet periods occurred during interglacial maxima. The delta (super 18) O-forced model also replicates the decrease in fluvial and sapping activity over the past million years, as northeastern Africa became hyperarid. The model thus provides a promising predictive tool for studying long-term landform evolution that involves surface and subsurface processes and climatic change. JF - Geological Society of America Bulletin AU - Luo, Wei AU - Arvidson, Raymond E AU - Sultan, Mohamed AU - Becker, Richard AU - Crombie, Mary Katherine AU - Sturchio, Neil C AU - El Alfy, Zeinhom Y1 - 1997/01// PY - 1997 DA - January 1997 SP - 43 EP - 62 PB - Geological Society of America (GSA), Boulder, CO VL - 109 IS - 1 SN - 0016-7606, 0016-7606 KW - Farafra Depression KW - North Africa KW - erosion KW - data processing KW - Kharga Oasis KW - ground water KW - Cenozoic KW - sapping KW - topography KW - sedimentary rocks KW - digital simulation KW - climate effects KW - springs KW - algorithms KW - hydrology KW - chemically precipitated rocks KW - Quaternary KW - numerical models KW - interglacial environment KW - landform evolution KW - water erosion KW - Western Desert KW - Kurkur Depression KW - Egypt KW - pluvial environment KW - runoff KW - depressions KW - Africa KW - tufa KW - scarps KW - hydraulic conductivity KW - geomorphology KW - cellular automata KW - 24:Quaternary geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52756734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+of+America+Bulletin&rft.atitle=Ground-water+sapping+processes%2C+Western+Desert%2C+Egypt&rft.au=Luo%2C+Wei%3BArvidson%2C+Raymond+E%3BSultan%2C+Mohamed%3BBecker%2C+Richard%3BCrombie%2C+Mary+Katherine%3BSturchio%2C+Neil+C%3BEl+Alfy%2C+Zeinhom&rft.aulast=Luo&rft.aufirst=Wei&rft.date=1997-01-01&rft.volume=109&rft.issue=1&rft.spage=43&rft.isbn=&rft.btitle=&rft.title=Geological+Society+of+America+Bulletin&rft.issn=00167606&rft_id=info:doi/10.1130%2F0016-7606%281997%291092.3.CO%3B2 L2 - http://www.gsajournals.org/ 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 - 1997-01-01 N1 - Number of references - 65 N1 - PubXState - CO N1 - Document feature - illus. incl. block diag., 2 tables, geol. sketch maps N1 - SuppNotes - With GSA Data Repository Item 9636 N1 - Last updated - 2012-06-07 N1 - CODEN - BUGMAF N1 - SubjectsTermNotLitGenreText - Africa; algorithms; cellular automata; Cenozoic; chemically precipitated rocks; climate effects; data processing; depressions; digital simulation; Egypt; erosion; Farafra Depression; geomorphology; ground water; hydraulic conductivity; hydrology; interglacial environment; Kharga Oasis; Kurkur Depression; landform evolution; North Africa; numerical models; pluvial environment; Quaternary; runoff; sapping; scarps; sedimentary rocks; springs; topography; tufa; water erosion; Western Desert DO - http://dx.doi.org/10.1130/0016-7606(1997)109<0043:GWSPWD>2.3.CO;2 ER - TY - JOUR T1 - Lead adsorption at the calcite-water interface; synchrotron X-ray standing wave and X-ray reflectivity studies AN - 52736543; 1997-026264 AB - X-ray standing wave (XSW) measurements are combined with X-ray reflectivity results to determine the specific position of Pb ions at the calcite-water interface. XSW measurements are used to triangulate the location of the Pb ions and confirm that they occupy Ca sites in the calcite lattice. In situ X-ray reflectivity measurements indicate that the Pb ions occur mainly in the surface layer of calcite rather than above or below that surface. Quantitative morphological data from atomic force microscopy is used to test models used in calculating the X-ray reflectivity intensities. These specialized X-ray techniques are briefly described. JF - Geochimica et Cosmochimica Acta AU - Sturchio, Neil C AU - Chiarello, Ronald P AU - Cheng, Likwan AU - Lyman, Paul F AU - Bedzyk, Michael J AU - Qian, Yonglin AU - You, Hoydoo AU - Yee, Dennis AU - Geissbuhler, Phillip AU - Sorensen, Larry B AU - Liang, Yong AU - Baer, Donald R Y1 - 1997/01// PY - 1997 DA - January 1997 SP - 251 EP - 263 PB - Pergamon, Oxford VL - 61 IS - 2 SN - 0016-7037, 0016-7037 KW - water KW - experimental studies KW - unit cell KW - mineral-water interface KW - lead KW - crystal structure KW - aqueous solutions KW - adsorption KW - ions KW - X-ray spectra KW - calcite KW - synchrotron radiation KW - chemical reactions KW - metals KW - spectra KW - crystal chemistry KW - geochemistry 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/52736543?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Lead+adsorption+at+the+calcite-water+interface%3B+synchrotron+X-ray+standing+wave+and+X-ray+reflectivity+studies&rft.au=Sturchio%2C+Neil+C%3BChiarello%2C+Ronald+P%3BCheng%2C+Likwan%3BLyman%2C+Paul+F%3BBedzyk%2C+Michael+J%3BQian%2C+Yonglin%3BYou%2C+Hoydoo%3BYee%2C+Dennis%3BGeissbuhler%2C+Phillip%3BSorensen%2C+Larry+B%3BLiang%2C+Yong%3BBaer%2C+Donald+R&rft.aulast=Sturchio&rft.aufirst=Neil&rft.date=1997-01-01&rft.volume=61&rft.issue=2&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2FS0016-7037%2896%2900326-2 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom N1 - Date revised - 1997-01-01 N1 - Number of references - 60 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; aqueous solutions; calcite; carbonates; chemical reactions; crystal chemistry; crystal structure; experimental studies; geochemistry; ions; lead; metals; mineral-water interface; spectra; synchrotron radiation; unit cell; water; X-ray spectra DO - http://dx.doi.org/10.1016/S0016-7037(96)00326-2 ER - TY - JOUR T1 - Influence of cross-section intrusion geometry on contact metamorphic fluid flow in the Alta Stock aureole, Utah AN - 52589777; 1998-043696 JF - Abstracts with Programs - Geological Society of America AU - Bowman, John R AU - Armstrong, Dean L AU - Barnett, Daniel E AU - Cook, Stephen J AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 397 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - periclase KW - geologic thermometry KW - oxygen KW - isotopes KW - simulation KW - stable isotopes KW - temperature KW - contact metamorphism KW - mineral composition KW - transport KW - heat flow KW - oxides KW - geothermal gradient KW - patterns KW - hanging wall KW - advection KW - metamorphism KW - geometry KW - models KW - intrusions KW - aureoles KW - O-18 KW - Utah KW - Alta Stock KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52589777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Influence+of+cross-section+intrusion+geometry+on+contact+metamorphic+fluid+flow+in+the+Alta+Stock+aureole%2C+Utah&rft.au=Bowman%2C+John+R%3BArmstrong%2C+Dean+L%3BBarnett%2C+Daniel+E%3BCook%2C+Stephen+J%3BAnonymous&rft.aulast=Bowman&rft.aufirst=John&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=397&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, 1997 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 - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - advection; Alta Stock; aureoles; contact metamorphism; geologic thermometry; geometry; geothermal gradient; hanging wall; heat flow; intrusions; isotopes; metamorphism; mineral composition; models; O-18; oxides; oxygen; patterns; periclase; simulation; stable isotopes; temperature; transport; United States; Utah ER - TY - JOUR T1 - Petrologic evidence for down-temperature fluid flow in the Alta Stock aureole, Utah AN - 52582937; 1998-048255 JF - Abstracts with Programs - Geological Society of America AU - Cook, Stephen J AU - Bowman, John R AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 397 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - United States KW - geologic thermometry KW - numerical analysis KW - simulation KW - metamorphism KW - temperature KW - geometry KW - isograds KW - contact metamorphism KW - mineral composition KW - phase equilibria KW - metamorphic rocks KW - aureoles KW - marbles KW - Utah KW - mineral assemblages KW - prograde metamorphism KW - Alta Stock KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52582937?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Petrologic+evidence+for+down-temperature+fluid+flow+in+the+Alta+Stock+aureole%2C+Utah&rft.au=Cook%2C+Stephen+J%3BBowman%2C+John+R%3BAnonymous&rft.aulast=Cook&rft.aufirst=Stephen&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=397&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, 1997 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 - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Alta Stock; aureoles; contact metamorphism; geologic thermometry; geometry; isograds; marbles; metamorphic rocks; metamorphism; mineral assemblages; mineral composition; numerical analysis; phase equilibria; prograde metamorphism; simulation; temperature; United States; Utah ER - TY - JOUR T1 - Isotopic fractionation during reductive dehalogenation of chlorinated ethenes by metallic iron AN - 52581028; 1998-048325 AB - Stable C and Cl isotope ratios have potential uses for tracing chlorinated ethenes in the environment. Such applications include source apportionment and isotopic mass balance of natural attenuation in contaminated groundwater aquifers. Before these applications can be widely used, however, it is necessary to understand the magnitude and direction of isotopic fractionation that may accompany chemical and biological dehalogenation reactions involving chlorinated ethenes. The reaction examined in the present work is the reductive dehalogenation of chlorinated ethenes with zero-valent Fe. This is a widely applied remediation technique for chlorinated solvents. Replicate experiments were performed with tetrachloroethylene (PCE), trichloroethylene (TCE) and 1,2-cis-dichloroethylene (DCE) in 254 ml reaction vessels. Headspace was sampled either with gas tight syringes or solid phase microextraction and analysed by GC-C-IRMS for carbon isotope ratio measurements and by the Holt et al. (Anal. Chem., 1997) method for chlorine isotope ratio measurements.During the reaction with electrolytic Fe, all residual compounds became enriched with 13-C. A carbon isotope ratio increase from -30.5 to -16.8 per mil after 170 hrs was noted for TCE, whereas a similar increase from -26.8 to -5.3 per mil after 288 hrs was noted for DCE. The experiments with PCE are currently in progress, with a 13-C enrichment of 11 per mil noted after 48 hours. Chlorine isotope measurement also are in progress and will be presented. The results of our work indicate the utility of compound-specific carbon and chlorine isotopic measurements in tracing reaction progress of reductive dehalogenation in laboratory and field systems. The systematic nature of the isotopic fractionation implies that source apportionment of partially degraded chlorinated ethenes also may be possible. JF - Abstracts with Programs - Geological Society of America AU - Dayan, Hannah AU - Abrajano, Teofilo A, Jr AU - Heraty, Linnea J AU - Huang, Lin AU - Sturchio, Neil C AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 185 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - chlorinated hydrocarbons KW - isotope fractionation KW - degradation KW - isotopes KW - halogens KW - gas chromatograms KW - mass spectra KW - tetrachloroethylene KW - stable isotopes KW - iron KW - radioactive isotopes KW - chemical reactions KW - carbon KW - tracers KW - halogenated hydrocarbons KW - spectra KW - ethenes KW - chlorine KW - experimental studies KW - Cl-36 KW - dehalogenation KW - dichloroethylene KW - organic compounds KW - metals KW - C-13 KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52581028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Isotopic+fractionation+during+reductive+dehalogenation+of+chlorinated+ethenes+by+metallic+iron&rft.au=Dayan%2C+Hannah%3BAbrajano%2C+Teofilo+A%2C+Jr%3BHeraty%2C+Linnea+J%3BHuang%2C+Lin%3BSturchio%2C+Neil+C%3BAnonymous&rft.aulast=Dayan&rft.aufirst=Hannah&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=185&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, 1997 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 - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - C-13; carbon; chemical reactions; chlorinated hydrocarbons; chlorine; Cl-36; degradation; dehalogenation; dichloroethylene; ethenes; experimental studies; gas chromatograms; halogenated hydrocarbons; halogens; iron; isotope fractionation; isotopes; mass spectra; metals; organic compounds; radioactive isotopes; spectra; stable isotopes; tetrachloroethylene; tracers ER - TY - JOUR T1 - Stable isotope investigation of natural attenuation of trichloroethene at the Paducah Gaseous Diffusion Plant AN - 52558608; 1998-066738 AB - Shallow groundwater at the Paducah Gaseous Diffusion Plant (PGDP) west of Paducah, KY is contaminated with at least 2,000 to 3,000 liters of trichloroethene (TCE). Two TCE-contaminated plumes extend northward in the regional gravel aquifer from residual DNAPL pool(s) within the PGDP property toward the Ohio River. Fifteen monitoring wells (including two uncontaminated background wells) were sampled during May 1997 for a preliminary isotopic investigation. The objectives of this investigation of stable isotope ratios (of C and Cl in TCE; dissolved inorganic C; inorganic Cl; and oxygen in water) are: (1) to determine the possible extent of natural TCE attenuation; (2) to determine whether the two plumes could have different TCE sources; and (3) to determine whether the contaminated plumes could have different water sources, as evidenced by variations in oxygen isotope ratios of water.The groundwater characteristics are: pH, 6.3-8.0; Eh, +120 to +280 mV; bicarbonate, 99-351 mg/L; chloride, 3-120 mg/L; sulfate, 5.5-115 mg/L; nitrate, <0.5-50 mg/L; total Fe, <0.3-7.0 mg/L; H2S, <0.01-0.04 mg/L; ammonia, <0.1 mg/L; TCE, <0.001 to 180 mg/L; cis-1,2,-DCE, <0.001-0.130 mg/L. Carbon isotope ratios of TCE were determined by GC-C-IRMS and range from -30.4 to -26.7 per mil [PDB]. Chlorine isotope ratios of TCE were determined by the method of Holt et al. (Anal. Chem. 1997) and range from -1.0 to -0.2 per mil [SMOC]. Oxygen isotope ratios of water range from -5.8 to -4.9 per mil [SMOW]. The isotopic data indicate minor degradation of TCE, little or no difference in source composition of TCE in the two plumes, and no difference in water source for the two plumes. These conclusions are consistent with the relatively low DCE/TCE concentration ratios in the plumes (<0.00008 to 0.022) and the generally oxidizing conditions of the aquifer. JF - Abstracts with Programs - Geological Society of America AU - Sturchio, Neil C AU - Abrajano, Teofilo A, Jr AU - Heraty, Linnea J AU - Huang, Lin AU - Clausen, Jay L AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 185 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - halogens KW - gas chromatograms KW - mass spectra KW - attenuation KW - chloride ion KW - carbon KW - Paducah Gaseous Diffusion Plant KW - nitrate ion KW - pH KW - sulfate ion KW - McCracken County Kentucky KW - pollutants KW - C-13/C-12 KW - bicarbonate ion KW - organic compounds KW - Cl-37/Cl-35 KW - water wells KW - United States KW - chlorinated hydrocarbons KW - degradation KW - oxygen KW - contaminant plumes KW - isotopes KW - observation wells KW - dense nonaqueous phase liquids KW - stable isotopes KW - iron KW - ground water KW - sampling KW - halogenated hydrocarbons KW - spectra KW - geochemistry KW - Eh KW - Ohio River KW - ammonia compound KW - chlorine KW - isotope ratios KW - oxidation KW - pollution KW - hydrogen sulfide KW - O-18/O-16 KW - hydrochemistry KW - aquifers KW - nonaqueous phase liquids KW - metals KW - Kentucky KW - shallow aquifers KW - trichloroethylene KW - Paducah Kentucky KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52558608?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Stable+isotope+investigation+of+natural+attenuation+of+trichloroethene+at+the+Paducah+Gaseous+Diffusion+Plant&rft.au=Sturchio%2C+Neil+C%3BAbrajano%2C+Teofilo+A%2C+Jr%3BHeraty%2C+Linnea+J%3BHuang%2C+Lin%3BClausen%2C+Jay+L%3BAnonymous&rft.aulast=Sturchio&rft.aufirst=Neil&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=185&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, 1997 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 - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - ammonia compound; aquifers; attenuation; bicarbonate ion; C-13/C-12; carbon; chloride ion; chlorinated hydrocarbons; chlorine; Cl-37/Cl-35; contaminant plumes; degradation; dense nonaqueous phase liquids; Eh; gas chromatograms; geochemistry; ground water; halogenated hydrocarbons; halogens; hydrochemistry; hydrogen sulfide; iron; isotope ratios; isotopes; Kentucky; mass spectra; McCracken County Kentucky; metals; nitrate ion; nonaqueous phase liquids; O-18/O-16; observation wells; Ohio River; organic compounds; oxidation; oxygen; Paducah Gaseous Diffusion Plant; Paducah Kentucky; pH; pollutants; pollution; sampling; shallow aquifers; spectra; stable isotopes; sulfate ion; trichloroethylene; United States; water wells ER - TY - JOUR T1 - Geochemistry and origin of groundwaters in the newly reclaimed agricultural lands, Eastern and Western deserts of Egypt AN - 52558266; 1998-066746 AB - The question of the origin of the shallow groundwaters in the newly reclaimed agricultural lands adjacent to the western Nile Delta and in the valleys east of the River Nile bank is addressed through consideration of chemical and isotopic data for water samples collected from these areas. Possible sources are thought to be: Nile River water, flash-flood water stored in shallow aquifers, and Nubian aquifer paleowater that may have ascended under artesian pressure along faults. The examined waters from the Eastern and Western Deserts of Egypt have isotopic compositions that are quite distinct from the Nubian aquifer paleowaters and are generally less enriched in D and 18-O than Nile River water. The Eastern Desert water samples plot mostly along the global meteoric water line at values equal to or greater than those of Sidi Barrani rain waters. The Western Desert water samples plot mostly along an evaporation line with a slope of 5.9 and have isotopic compositions intermediate between Sidi Barrani rainwater and Nile River water. The Western Desert waters have undetectable tritium activities, whereas the Eastern Desert samples with one exception have tritium activities indicative of post-bomb precipitation. Results indicate that: 1) flash-flood waters stored in shallow aquifers appear to be the principal source of most of the groundwaters analyzed, 2) none of the groundwaters have a significant component of Nubian aquifer paleowater, and 3) the Eastern Desert waters are relatively older (>45 years) than the Western Desert waters (<45 years). JF - Abstracts with Programs - Geological Society of America AU - Sultan, Mohamed I AU - Sturchio, Neil C AU - El Alfy, Zeinhom AU - El Maghraby, Ashraf AU - Taher, Amany AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 330 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - oxygen KW - North Africa KW - isotopes KW - reclamation KW - atmospheric precipitation KW - tritium KW - stable isotopes KW - ground water KW - radioactive isotopes KW - Nile River KW - geochemistry KW - Nile Delta KW - isotope ratios KW - Nubian Aquifer KW - agriculture KW - Western Desert KW - O-18/O-16 KW - hydrochemistry KW - aquifers KW - Egypt KW - evaporation KW - D/H KW - hydrogen KW - Africa KW - shallow aquifers KW - Eastern Desert KW - Sidi Barrani KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52558266?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+and+origin+of+groundwaters+in+the+newly+reclaimed+agricultural+lands%2C+Eastern+and+Western+deserts+of+Egypt&rft.au=Sultan%2C+Mohamed+I%3BSturchio%2C+Neil+C%3BEl+Alfy%2C+Zeinhom%3BEl+Maghraby%2C+Ashraf%3BTaher%2C+Amany%3BAnonymous&rft.aulast=Sultan&rft.aufirst=Mohamed&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=330&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, 1997 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 - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Africa; agriculture; aquifers; atmospheric precipitation; D/H; Eastern Desert; Egypt; evaporation; geochemistry; ground water; hydrochemistry; hydrogen; isotope ratios; isotopes; Nile Delta; Nile River; North Africa; Nubian Aquifer; O-18/O-16; oxygen; radioactive isotopes; reclamation; shallow aquifers; Sidi Barrani; stable isotopes; tritium; Western Desert ER - TY - RPRT T1 - Actinides '97; international conference on Actinides AN - 52417159; 2000-000371 AB - In addition to naturally occurring uranium and thorium, actinide ions exist in the subsurface environment as a result of accidental releases and intentional disposal practices associated with nuclear weapons production. These species present a significant challenge to cost-effective remediation of contaminated environments. An attractive approach to decreasing the probability of actinide migration in the subsurface is to transform the ions into a less mobile form by remote treatment. We have under development a process which relies on a polyfunctional organophosphorus complexant to sequester the mobile metal ions by complexation/cation exchange in the near term, and to subsequently decompose, transforming the actinides into insoluble phosphate mineral forms in the long term. Studies to date include identification of a suitable organophosphorus reagent, profiling of its decomposition kinetics, verification of the formation of phosphate mineral phases upon decomposition of the reagent, and extensive comparison of the actinide uptake ability of the calcium salt of the reagent as compared with hydroxyapatite. In this report, we briefly describe the process with focus on the cation exchange behavior of the calcium salt of the organophosphorus sequestrant. JF - Actinides '97; international conference on Actinides AU - Nash, K L AU - Jensen, M P AU - Schmidt, M A Y1 - 1997 PY - 1997 DA - 1997 SP - 12 VL - ANL/CHM/CP-92802 KW - soils KW - in situ KW - cation exchange capacity KW - isotopes KW - pollutants KW - soil treatment KW - pollution KW - migration of elements KW - remediation KW - radioactive waste KW - reagents KW - radioactive isotopes KW - symposia KW - metals KW - nuclear facilities KW - waste disposal KW - mobility KW - actinides KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52417159?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=Nash%2C+K+L%3BJensen%2C+M+P%3BSchmidt%2C+M+A&rft.aulast=Nash&rft.aufirst=K&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Actinides+%2797%3B+international+conference+on+Actinides&rft.title=Actinides+%2797%3B+international+conference+on+Actinides&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Actinides '97; international conference on Actinides N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2000-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97054214NEG, Springfield, VA, United States N1 - SuppNotes - Individual papers are not cited separately; Contract W-31-109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - In situ biodegradation of explosives-contaminated soil AN - 52394272; 2000-014716 JF - Bioremediation AU - Manning, John F, Jr AU - Boopathy, Ramaraj AU - Alleman, Bruce C AU - Leeson, Andrea Y1 - 1997 PY - 1997 DA - 1997 SP - 59 EP - 60 PB - Battelle Press, Columbus, OH VL - 4, Vol. 2 KW - United States KW - biodegradation KW - in situ KW - Illinois KW - pollutants KW - herbicides KW - soil treatment KW - pollution KW - trinitrotoluene KW - RDX KW - Joliet Illinois KW - bioremediation KW - Will County Illinois KW - remediation KW - nutrients KW - triazines KW - organic compounds KW - explosives KW - Joliet Army Ammunition Plant KW - pesticides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52394272?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioremediation&rft.atitle=In+situ+biodegradation+of+explosives-contaminated+soil&rft.au=Manning%2C+John+F%2C+Jr%3BBoopathy%2C+Ramaraj%3BAlleman%2C+Bruce+C%3BLeeson%2C+Andrea&rft.aulast=Manning&rft.aufirst=John&rft.date=1997-01-01&rft.volume=4%2C+Vol.+2&rft.issue=&rft.spage=59&rft.isbn=1574770276&rft.btitle=&rft.title=Bioremediation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourth international in situ and on-site bioremediation symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2000-01-01 N1 - PubXState - OH N1 - Last updated - 2012-06-07 N1 - CODEN - #04467 N1 - SubjectsTermNotLitGenreText - biodegradation; bioremediation; explosives; herbicides; Illinois; in situ; Joliet Army Ammunition Plant; Joliet Illinois; nutrients; organic compounds; pesticides; pollutants; pollution; RDX; remediation; soil treatment; triazines; trinitrotoluene; United States; Will County Illinois ER - TY - JOUR T1 - Field demonstration of a bioslurry reactor for explosives-contaminated soil; success, concerns, and economics AN - 52241363; 2001-029538 JF - Bioremediation AU - Manning, John F, Jr AU - Kulpa, Charles C AU - Breyfogle, Bob AU - Alleman, Bruce C AU - Leeson, Andrea Y1 - 1997 PY - 1997 DA - 1997 SP - 471 PB - Battelle Press, Columbus, OH VL - 4, Vol. 5 KW - soils KW - technology KW - degradation KW - in situ KW - pollution KW - trinitrotoluene KW - bioremediation KW - cost KW - remediation KW - organic compounds KW - explosives KW - applications KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52241363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioremediation&rft.atitle=Field+demonstration+of+a+bioslurry+reactor+for+explosives-contaminated+soil%3B+success%2C+concerns%2C+and+economics&rft.au=Manning%2C+John+F%2C+Jr%3BKulpa%2C+Charles+C%3BBreyfogle%2C+Bob%3BAlleman%2C+Bruce+C%3BLeeson%2C+Andrea&rft.aulast=Manning&rft.aufirst=John&rft.date=1997-01-01&rft.volume=4%2C+Vol.+5&rft.issue=&rft.spage=471&rft.isbn=&rft.btitle=&rft.title=Bioremediation&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Fourth international in situ and on-site bioremediation symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - PubXState - OH N1 - Last updated - 2012-06-07 N1 - CODEN - #04467 N1 - SubjectsTermNotLitGenreText - applications; bioremediation; cost; degradation; explosives; in situ; organic compounds; pollution; remediation; soils; technology; trinitrotoluene ER - TY - JOUR T1 - Carbonate growth studied by synchrotron X-ray scattering AN - 52232606; 2001-037111 JF - LPI Contribution AU - Sturchio, N C AU - Chiarello, R P Y1 - 1997 PY - 1997 DA - 1997 SP - 200 EP - 201 PB - Lunar and Planetary Institute, Houston, TX VL - 921 SN - 0161-5297, 0161-5297 KW - calcium KW - alkaline earth metals KW - experimental studies KW - mineral-water interface KW - crystal growth KW - X-ray spectra KW - synchrotron radiation KW - laboratory studies KW - nucleation KW - metals KW - cadmium KW - spectra KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52232606?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Carbonate+growth+studied+by+synchrotron+X-ray+scattering&rft.au=Sturchio%2C+N+C%3BChiarello%2C+R+P&rft.aulast=Sturchio&rft.aufirst=N&rft.date=1997-01-01&rft.volume=921&rft.issue=&rft.spage=200&rft.isbn=&rft.btitle=&rft.title=LPI+Contribution&rft.issn=01615297&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Seventh annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Last updated - 2012-06-07 N1 - CODEN - LPCODB N1 - SubjectsTermNotLitGenreText - alkaline earth metals; cadmium; calcium; carbonates; crystal growth; experimental studies; laboratory studies; metals; mineral-water interface; nucleation; spectra; synchrotron radiation; X-ray spectra ER - TY - RPRT T1 - Fluxes of methane between landfills and the atmosphere; natural and engineered controls AN - 51912857; 2004-001606 AB - Field measurement of landfill methane emissions indicates natural variability spanning more than 2 seven orders of magnitude, from approximately 0.0004 to more than 4000 g/sq m/day. The determination of an "average" emission rate for a given field site requires sampling designs and statistical techniques which consider spatial and temporal variability. Moreover, particularly at sites with pumped gas recovery systems, it is possible for methanotrophic microorganisms in aerated cover soils to oxidize all of the methane from landfill sources below and, additionally, to oxidize methane diffusing into cover soils from atmospheric sources above. In such cases, a reversed soil gas concentration gradient is observed in shallow cover soils, indicating bidirectional diffusional transport to the depth of optimum methane oxidation. Recovery of landfill methane through engineered systems can provide both environmental and energy benefits by mitigating subsurface migration, reducing surface emissions, and providing an alternative energy resource for industrial boiler use, on-site electrical generation, or upgrading to a substitute natural gas. JF - Fluxes of methane between landfills and the atmosphere; natural and engineered controls AU - Bogner, J AU - Meadows, M AU - Czepiel, P Y1 - 1997 PY - 1997 DA - 1997 SP - 26 VL - ANL/ER/CP-93063 | CONF-9706143-1 KW - soils KW - monitoring KW - methane KW - degradation KW - gaseous phase KW - landfills KW - effluents KW - aliphatic hydrocarbons KW - pollution KW - migration of elements KW - alkanes KW - remediation KW - organic compounds KW - hydrocarbons KW - ecology KW - greenhouse effect KW - sanitary landfills KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51912857?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=Bogner%2C+J%3BMeadows%2C+M%3BCzepiel%2C+P&rft.aulast=Bogner&rft.aufirst=J&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Fluxes+of+methane+between+landfills+and+the+atmosphere%3B+natural+and+engineered+controls&rft.title=Fluxes+of+methane+between+landfills+and+the+atmosphere%3B+natural+and+engineered+controls&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2004-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97007002NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the International conference on Mining and industrial waste management; Sponsored by the Department of Energy, Washington, DC, Johannesburg, South Africa, June 2-4, 1997; Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Biodegradation of munitions compounds by a sulfate reducing bacterial enrichment culture AN - 51911947; 2004-001607 AB - The degradation of several munitions compounds was studied. The compounds included 2, 4, 6-trinitrotoluene (TNT), hexahydro-1, 3, 5 - trinitro-1, 3, 5-triazine, octahydro-1, 3, 5, 7-tetranitro- 1, 3, 5, 7-tetraazocine, 2, 4, 6-trinitrobenzene (TNB), and 2, 4-dinitrotoluene. All of the compounds studied were degraded by the sulfate reducing bacterial (SRB) enrichment culture. The SRB culture did not use the munitions compounds as their sole source of carbon. However, all the munitions compounds tested served as the sole source of nitrogen for the SRB culture. Degradation of munitions compounds was achieved by a co-metabolic process. The SRB culture used a variety of carbon sources including pyruvate, ethanol, formate, lactate, and H (sub 2) -CO (sub 2) . The SRB culture was an incomplete oxidizer, unable to carry out the terminal oxidation of organic substrates to CO (sub 2) as the sole product, and it did not use acetate or methanol as a carbon source. In addition to serving as nitrogen sources, the munitions compounds also served as electron acceptors in the absence of sulfate. A soil slurry experiment with 5% and 10% munitions compounds-contaminated soil showed that the contaminant TNT was metabolized by the SRB culture in the presence of pyruvate as electron donor. This culture may be useful in decontaminating munitions compounds-contaminated soil and water under anaerobic conditions. JF - Biodegradation of munitions compounds by a sulfate reducing bacterial enrichment culture AU - Boopathy, R AU - Manning, J Y1 - 1997 PY - 1997 DA - 1997 SP - 27 VL - ANL/ER/PP-86791 KW - soils KW - biodegradation KW - sulfate ion KW - explosions KW - pollutants KW - chemical explosions KW - tetraazocine KW - pollution KW - trinitrotoluene KW - chemical waste KW - remediation KW - triazines KW - organic compounds KW - explosives KW - decontamination KW - bacteria KW - trinitrobenzene KW - industrial waste KW - microorganisms KW - dinitrotoluene KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51911947?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=Boopathy%2C+R%3BManning%2C+J&rft.aulast=Boopathy&rft.aufirst=R&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Biodegradation+of+munitions+compounds+by+a+sulfate+reducing+bacterial+enrichment+culture&rft.title=Biodegradation+of+munitions+compounds+by+a+sulfate+reducing+bacterial+enrichment+culture&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2004-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97008251NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Volatile trace-element composition and shock in equilibrated H chondrites AN - 51032880; 1997-062014 JF - LPI Technical Report AU - Wolf, S F AU - Lipschutz, M E A2 - Zolensky, M. E. A2 - Krot, A. N. A2 - Scott, E. R. D. Y1 - 1997 PY - 1997 DA - 1997 SP - 67 EP - 68 PB - Lunar and Planetary Institute, Houston, TX SN - 0730-966X, 0730-966X KW - ordinary chondrites KW - stony meteorites KW - parent bodies KW - H chondrites KW - thermal history KW - metamorphism KW - meteorites KW - volatile elements KW - brecciation KW - trace elements KW - chondrites KW - shock metamorphism KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/51032880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Technical+Report&rft.atitle=Volatile+trace-element+composition+and+shock+in+equilibrated+H+chondrites&rft.au=Wolf%2C+S+F%3BLipschutz%2C+M+E&rft.aulast=Wolf&rft.aufirst=S&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=67&rft.isbn=&rft.btitle=&rft.title=LPI+Technical+Report&rft.issn=0730966X&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/publications/reports.shtml LA - English DB - GeoRef N1 - Conference title - Workshop on Parent-body and nebular modification of chondritic materials N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - SuppNotes - Part 1 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - brecciation; chondrites; H chondrites; metamorphism; meteorites; ordinary chondrites; parent bodies; shock metamorphism; stony meteorites; thermal history; trace elements; volatile elements ER - TY - JOUR T1 - The hemispheric asymmetry of the marine stratigraphic record; proof of a polar icecap AN - 50932415; 1997-063331 AB - Recent preliminary confirmation of the Exxon sea level chart indicates possible episodes of glaciation during times when none were thought to have existed. Our work suggests that the presence of a polar icecap can be confirmed by establishing the asymmetry in the thicknesses of the marine stratigraphic record of the northern and southern hemispheres produced by the interaction of precession-scale sediment yield and glacioeustatic cycles. Hemispheric asymmetry should not exist in an ice free world. If our hypothesis is correct, it will permit substantial refinements in interpreting the stratigraphic record, leading to refined exploration techniques. In periods of unipolar glaciation, higher sea level will occur during the precessional climate maximum in the glaciated hemisphere, when the opposing hemisphere is at a precessional climate minimum. Through most of the Phanerozoic, until the Plio-Pleistocene, large landmasses in polar latitudes occurred predominantly in the southern hemisphere, precluding a large northern polar glacier. When ice did exist at the southern pole, the southern hemisphere precessional climatic maximum coincided with sea level highstands, while the northern hemisphere precessional climatic maximum coincided with sea level lowstands. Sediment yield cycles from areas with the same climatic succession but located in opposite hemispheres will have two distinct phase relationships with glacioeustasy, creating different stratigraphic architectures. This will produce statistically different patterns of bed thickness distributions. JF - Annual Meeting Expanded Abstracts - American Association of Petroleum Geologists AU - Perlmutter, Martin A AU - Plotnick, Roy E AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 92 PB - American Association of Petroleum Geologists and Society of Economic Paleontologists and Mineralogists, Tulsa, OK VL - 6 SN - 0094-0038, 0094-0038 KW - cycles KW - eustacy KW - glaciation KW - paleoclimatology KW - ice caps KW - Southern Hemisphere KW - Phanerozoic KW - marine environment KW - sediment yield KW - thickness KW - Northern Hemisphere KW - glacial geology KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50932415?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=The+hemispheric+asymmetry+of+the+marine+stratigraphic+record%3B+proof+of+a+polar+icecap&rft.au=Perlmutter%2C+Martin+A%3BPlotnick%2C+Roy+E%3BAnonymous&rft.aulast=Perlmutter&rft.aufirst=Martin&rft.date=1997-01-01&rft.volume=6&rft.issue=&rft.spage=92&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 - American Association of Petroleum Geologists 1997 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 - 1997-01-01 N1 - PubXState - OK N1 - Last updated - 2012-06-07 N1 - CODEN - APGAB2 N1 - SubjectsTermNotLitGenreText - cycles; eustacy; glacial geology; glaciation; ice caps; marine environment; Northern Hemisphere; paleoclimatology; Phanerozoic; sediment yield; Southern Hemisphere; thickness ER - TY - JOUR T1 - A geochemical investigation of zircons from the Lyon Mountain Gneiss, Adirondack Mountains, New York State AN - 50880371; 2005-067190 JF - Program with Abstracts - Geological Association of Canada; Mineralogical Association of Canada: Joint Annual Meeting AU - Hanchar, John M AU - Watson, E Bruce AU - McLelland, James M AU - Yang, Changyi AU - McLelland, Jonathan M AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 63 PB - Geological Association of Canada, Waterloo, ON VL - 22 SN - 0701-8738, 0701-8738 KW - United States KW - silicates KW - upper Precambrian KW - silica minerals KW - igneous rocks KW - granites KW - PIXE spectra KW - emission spectra KW - Lyon Mountain Gneiss KW - plutonic rocks KW - mineral composition KW - major elements KW - orthosilicates KW - framework silicates KW - spectra KW - rare earths KW - geochemistry KW - zircon group KW - concentration KW - Precambrian KW - zircon KW - Proterozoic KW - veins KW - X-ray spectra KW - cathodoluminescence KW - Mesoproterozoic KW - nesosilicates KW - New York KW - metals KW - quartz KW - leucogranite KW - crystal chemistry KW - Adirondack Mountains KW - 01B:Mineralogy of silicates KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50880371?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+with+Abstracts+-+Geological+Association+of+Canada%3B+Mineralogical+Association+of+Canada%3A+Joint+Annual+Meeting&rft.atitle=A+geochemical+investigation+of+zircons+from+the+Lyon+Mountain+Gneiss%2C+Adirondack+Mountains%2C+New+York+State&rft.au=Hanchar%2C+John+M%3BWatson%2C+E+Bruce%3BMcLelland%2C+James+M%3BYang%2C+Changyi%3BMcLelland%2C+Jonathan+M%3BAnonymous&rft.aulast=Hanchar&rft.aufirst=John&rft.date=1997-01-01&rft.volume=22&rft.issue=&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Program+with+Abstracts+-+Geological+Association+of+Canada%3B+Mineralogical+Association+of+Canada%3A+Joint+Annual+Meeting&rft.issn=07018738&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Ottawa '97; GAC/MAC annual meeting--Ottawa '97; reunion annuelle AGC/AMC N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2005-01-01 N1 - PubXState - ON N1 - Last updated - 2012-06-07 N1 - CODEN - PAACD6 N1 - SubjectsTermNotLitGenreText - Adirondack Mountains; cathodoluminescence; concentration; crystal chemistry; emission spectra; framework silicates; geochemistry; granites; igneous rocks; leucogranite; Lyon Mountain Gneiss; major elements; Mesoproterozoic; metals; mineral composition; nesosilicates; New York; orthosilicates; PIXE spectra; plutonic rocks; Precambrian; Proterozoic; quartz; rare earths; silica minerals; silicates; spectra; United States; upper Precambrian; veins; X-ray spectra; zircon; zircon group ER - TY - JOUR T1 - Quantitative X-ray diffraction of epitaxially grown gibbsite on kaolinite AN - 50329192; 1998-051776 AB - In natural waters most minerals form by heterogeneous nucleation and growth, because of the generally small extent of mineral supersaturation and the relatively large energy barrier to homogeneous nucleation. Accurate knowledge of the mechanisms and rates of heterogeneous nucleation and growth of minerals is needed to develop realistic models of low-temperature geochemical systems. For example, growth and dissolution relationships between gibbsite and kaolinite are key to understanding weathering processes that lead to laterite and bauxite formation. We have developed a precise and accurate X-ray diffraction (XRD) method for measuring amounts of epitaxially grown gibbsite on kaolinite, using a custom built rotating-anode X-ray diffractometer (M. Beno and G. Knapp, Rev. Sci. Instr., 1993) at Argonne National Laboratory. This method can yield kinetic and structural data for analogous heteroepitaxial growth of many minerals.The method was calibrated using mechanical mixtures of gibbsite and kaolinite. Integrated peak areas from powder XRD scans for the kaolinite (001) and gibbsite (002) diffraction peaks were plotted against weight fractions of mechanical mixtures of gibbsite and kaolinite. The range of calibration is from 0 to 20 wt. percent gibbsite, and the regressed data show a near perfect linear correlation. Using a position sensitive detector and a high operating current (150-200 mA at 40 kV), we obtained good counting statistics and a low detection limit for gibbsite (0.1 wt. %).In a set of ongoing experiments, we are growing gibbsite on kaolinite powders at 80AC, pH 3 under variable saturation state conditions with respect to both phases. The preliminary XRD results obtained thus far on these experimental samples agree well with solution chemistry mass balance and with atomic force microscopy images. The XRD data verify that gibbsite was in the run products. The XRD data also can provide information on the epitaxy between gibbsite and kaolinite and on the average gibbsite domain size. JF - Abstracts with Programs - Geological Society of America AU - Hanchar, John M AU - Sturchio, Neil C AU - Nagy, Kathryn L AU - Anonymous Y1 - 1997 PY - 1997 DA - 1997 SP - 27 PB - Geological Society of America (GSA), Boulder, CO VL - 29 IS - 6 SN - 0016-7592, 0016-7592 KW - water KW - soils KW - silicates KW - bauxite KW - X-ray diffraction data KW - crystal growth KW - calibration KW - kaolinite KW - weathering KW - temperature KW - clay minerals KW - models KW - sedimentary rocks KW - nucleation KW - saturation KW - quantitative analysis KW - low temperature KW - oxides KW - sheet silicates KW - gibbsite KW - laterites KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50329192?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Quantitative+X-ray+diffraction+of+epitaxially+grown+gibbsite+on+kaolinite&rft.au=Hanchar%2C+John+M%3BSturchio%2C+Neil+C%3BNagy%2C+Kathryn+L%3BAnonymous&rft.aulast=Hanchar&rft.aufirst=John&rft.date=1997-01-01&rft.volume=29&rft.issue=6&rft.spage=27&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, 1997 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 - 1998-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - bauxite; calibration; clay minerals; crystal growth; gibbsite; kaolinite; laterites; low temperature; models; nucleation; oxides; quantitative analysis; saturation; sedimentary rocks; sheet silicates; silicates; soils; temperature; water; weathering; X-ray diffraction data ER - TY - CONF T1 - Integrating O sub(2) production with power systems to capture CO sub(2) AN - 16452941; 4380502 AB - Chemical cycles for separating oxygen (O sub(2)) from air were developed many years ago. These cycles involve a chemical reaction to capture O sub(2) from the air and a change in the operating conditions to effect a controlled breakdown of the newly formed product to release the O sub(2) and regenerate the original species. These cycles are generally more expensive than cryogenic separation of air, partly because they consume high-temperature thermal energy (500-850 degree C). The chemical cycles can be integrated with high-temperature power cycles to provide efficient heat cascading and recovery because the different temperature levels at which they require thermal energy are compatible with the levels encountered in high-temperature power cycles. The O sub(2) can be used in the combustion process to generate a CO sub(2)-rich stream that is more readily separable for production of commercial-grade CO sub(2). This paper presents a preliminary discussion of such integrated systems to facilitate the capture of CO sub(2), aimed at reviving interest in these cycles. JF - ENERGY CONVERS. MANAGE. AU - Jody, B J AU - Daniels, E J AU - Wolsky, A M Y1 - 1997 PY - 1997 DA - 1997 SP - S135 EP - S140 VL - 38 KW - Pollution Abstracts KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16452941?accountid=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=ENERGY+CONVERS.+MANAGE.&rft.atitle=Integrating+O+sub%282%29+production+with+power+systems+to+capture+CO+sub%282%29&rft.au=Jody%2C+B+J%3BDaniels%2C+E+J%3BWolsky%2C+A+M&rft.aulast=Jody&rft.aufirst=B&rft.date=1997-01-01&rft.volume=38&rft.issue=&rft.spage=S135&rft.isbn=&rft.btitle=&rft.title=ENERGY+CONVERS.+MANAGE.&rft.issn=&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 - BOOK T1 - The Air Compliance Advisor and its potential applications with the Ontario Ministry of Environment and Energy AN - 16375330; 4262833 AB - An update on the status of the Air Compliance Advisor (ACA) software is presented. The ACA is an extendible computer based decision support system for developing air pollution compliance strategies. It was developed to assist environmental personnel to achieve and maintain compliance with applicable regulations and permit conditions. It accomplishes this by providing a framework for collecting site-specific data, providing reliable estimates of emissions in the absence of actual data, providing estimates of pollution control options' efficiencies and costs, and integrating the functionality of regulatory requirements for federal facilities to determine what regulations may apply. While the software was developed initially for use by the U.S. Department of Defense (DoD), these capabilities are clearly useful to industry and regulators both in the U.S. and Canada. The possible uses of the ACA from a regulator's perspective are discussed using the specific situation of the Ontario Ministry of Environment and Energy (MOEE) to highlight what can be done with the existing package and where extensions might be useful. JF - AIR & WASTE MANAGEMENT ASSOCIATION 90. ANNUAL MEETING. AU - Maloney, D M AU - Rhodes, M F AU - Wasmer, F L AU - Smith, KE AU - Kemme, M Y1 - 1997 PY - 1997 DA - 1997 PB - AIR & WASTE MANAGEMENT ASSOCIATION, PITTSBURGH, PA 15222 (USA) KW - Canada, Ontario KW - Pollution Abstracts KW - 97-TA36A.04 KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16375330?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=Maloney%2C+D+M%3BRhodes%2C+M+F%3BWasmer%2C+F+L%3BSmith%2C+KE%3BKemme%2C+M&rft.aulast=Maloney&rft.aufirst=D&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=The+Air+Compliance+Advisor+and+its+potential+applications+with+the+Ontario+Ministry+of+Environment+and+Energy&rft.title=The+Air+Compliance+Advisor+and+its+potential+applications+with+the+Ontario+Ministry+of+Environment+and+Energy&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Online access: http://www.awma.org/. N1 - Last updated - 2011-12-13 ER - TY - BOOK T1 - Modeling the vehicle cycle impacts of hybrid electric vehicles AN - 16374373; 4262865 AB - Pure and hybrid electric vehicles, considered environmentally benign, are being developed to improve urban air quality. The obvious air quality benefit of pure electric vehicles is that they produce no tailpipe emissions. Hybrid electric vehicles (HEVs) have the potential of improving fuel economy and reducing emissions. However, both electric vehicles and hybrid electric vehicles do have their own environmental impacts. In order to quantify the potential benefits from introducing such vehicles, it is necessary to compare their impacts with those from the conventional vehicles they would replace. These impacts include energy use and emissions from the entire energy cycle, including fuel production, vehicle and battery production and recycling, and vehicle operation. Argonne's previous work in collaboration with other national laboratories analyzed the total energy cycle of electric vehicles; this paper compares energy use and emissions for the total energy cycle of several HEV designs with those from modern conventional vehicles. The results show that use of HEVs can reduce energy use and emissions of greenhouse gases, volatile organic gases, carbon monoxide, and particulate matter with size smaller than 10 microns. HEVs may, in some cases, increase emissions of nitrogen oxides and sulfur oxides. JF - AIR & WASTE MANAGEMENT ASSOCIATION 90. ANNUAL MEETING. AU - Wang, M Q AU - Gaines, L AU - Cuenca, R Y1 - 1997 PY - 1997 DA - 1997 PB - AIR & WASTE MANAGEMENT ASSOCIATION, PITTSBURGH, PA 15222 (USA) KW - Hybrid electric vehicles KW - Pollution Abstracts KW - 97-TA48.03 KW - P 9000:ENVIRONMENTAL ACTION KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16374373?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=Wang%2C+M+Q%3BGaines%2C+L%3BCuenca%2C+R&rft.aulast=Wang&rft.aufirst=M&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Modeling+the+vehicle+cycle+impacts+of+hybrid+electric+vehicles&rft.title=Modeling+the+vehicle+cycle+impacts+of+hybrid+electric+vehicles&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Online access: http://www.awma.org/. N1 - Last updated - 2011-12-13 ER - TY - BOOK T1 - Lifecycle analysis: uses and pitfalls AN - 16366486; 4262867 AB - There has been a recent trend toward the use of lifecycle analysis (LCA) as a decision-making tool. However, the different practitioners' methods and assumptions vary widely, as do the interpretations put on the results. The lack of uniformity has been addressed by such groups as the Society of Environmental Toxicology and Chemistry (SETAC) and the International Organization for Standardization (ISO), but standardization of methodology assures neither meaningful results nor appropriate use of the results. This paper examines the types of analysis that are possible for various consumer products, explains possible pitfalls to be avoided, and suggests ways that LCA can be used as part of a rational decision-making procedure. Examples are drawn from studies of municipal waste disposition, using standard methodology. The key to performing a useful analysis is identification of the factors that will actually be used in making the decision. It makes no sense to analyze system energy use in detail if direct financial cost is to be the decision criterion. Criteria may depend on who is making the decision (consumer, producer, regulator). LCA can be used to track system performance for a variety of criteria, including emissions, energy use, and monetary costs, and these can have spatial and temporal distributions. Real decisions are often made using rather narrow criteria; we illustrate how choice of criteria and differences in location can affect decisions. Because optimization of one parameter is likely to worsen another, identification of trade-offs is an important function of LCA. JF - AIR & WASTE MANAGEMENT ASSOCIATION 90. ANNUAL MEETING. AU - Gaines, L AU - Stodolsky, F Y1 - 1997 PY - 1997 DA - 1997 PB - AIR & WASTE MANAGEMENT ASSOCIATION, PITTSBURGH, PA 15222 (USA) KW - Life cycle analysis KW - Pollution Abstracts KW - 97-TA48.04 KW - P 9000:ENVIRONMENTAL ACTION KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16366486?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=Gaines%2C+L%3BStodolsky%2C+F&rft.aulast=Gaines&rft.aufirst=L&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Lifecycle+analysis%3A+uses+and+pitfalls&rft.title=Lifecycle+analysis%3A+uses+and+pitfalls&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Online access: http://www.awma.org/. N1 - Last updated - 2011-12-13 ER - TY - BOOK T1 - Enhanced control of mercury emissions through modified speciation AN - 16365659; 4281762 AB - Emissions of mercury from combustion sources continue to receive scrutiny from regulatory agencies at both the state and federal level. Unfortunately, field studies have shown that current flue-gas cleanup systems are relatively ineffective in controlling elemental mercury, which is often a significant component of the total emissions. In particular, typical flue-gas scrubbers give essentially no capture of elemental mercury due to its extremely low solubility. This paper summarizes research at Argonne National Laboratory that has been focused on enhancing the capture of mercury in existing scrubbing systems through conversion of elemental mercury to more soluble mercury compounds. Such a change in speciation can be accomplished through the combination of various chemical agents and native flue-gas components. Initial experiments involved passing a gas containing mercury through bubblers containing dilute solutions of iodine, chlorine, or chloric acid. The extent of conversion (oxidation) was determined by measuring the fraction of inlet mercury that was trapped in the bubbler solutions. In some cases, nitric oxide was found to have a strong beneficial effect on mercury conversion, providing indications that a combined removal process might be feasible. On the other hand, sulfur dioxide generally depressed the conversion, although this effect varied with the chemical agent being used. With these results as a basis, process development research is planned to establish the mercury-control potential of scrubbing with modified speciation under realistic conditions of flue-gas temperature, composition, and residence time. JF - AIR & WASTE MANAGEMENT ASSOCIATION 90. ANNUAL MEETING. AU - Livengood, C D AU - Mendelsohn, M H Y1 - 1997 PY - 1997 DA - 1997 PB - AIR & WASTE MANAGEMENT ASSOCIATION, PITTSBURGH, PA 15222 (USA) KW - Pollution Abstracts KW - 97-WP72B.01 KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16365659?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=Livengood%2C+C+D%3BMendelsohn%2C+M+H&rft.aulast=Livengood&rft.aufirst=C&rft.date=1997-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Enhanced+control+of+mercury+emissions+through+modified+speciation&rft.title=Enhanced+control+of+mercury+emissions+through+modified+speciation&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2006-11-01 N1 - SuppNotes - Online access: http://www.awma.org/. N1 - Last updated - 2011-12-13 ER - TY - JOUR T1 - Chemically bonded phosphate ceramics for low-level mixed-waste stabilization AN - 16098517; 4203794 AB - Novel chemically bonded phosphate ceramics are being developed and fabricated for low-temperature stabilization and solidification of mixed-waste streams that are not amenable to conventional high-temperature stabilization processes because volatiles, such as heavy-metal chlorides and fluorides, and/or pyrophorics are present in the wastes. Phosphates of Mg, Mg-Na, and Zr are being developed as candidate matrix materials. In this paper, we present the fabrication procedures for phosphate waste forms with surrogate compositions of three typical mixed-waste streams, namely ash, cement sludges, and salts. This study was focused, but not limited to, magnesium phosphate-ash wastestream final waste form. The performance of the final waste forms, such as compression strength, leachability of the contaminants, and durability in aqueous environments were conducted. In addition, parametric studies have been conducted to establish the optimal ash waste loading in the magnesium phosphate binder system. Based on the results, we present potential applications of phosphate-bonded ceramics in the treatment of various mixed-waste streams. JF - Journal of Environmental Science and Health, Part A: Environmental Science and Engineering & Toxic and Hazardous Substance Control AU - Singh, D AU - Wagh, A S AU - Cunnane, J C AU - Mayberry, J L AD - Energy Technology Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA Y1 - 1997 PY - 1997 DA - 1997 SP - 527 EP - 541 VL - A32 IS - 2 SN - 0360-1226, 0360-1226 KW - Pollution Abstracts KW - physicochemical properties KW - ceramics KW - phosphates KW - magnesium compounds KW - waste treatment KW - ash KW - P 4000:WASTE MANAGEMENT UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16098517?accountid=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+Science+and+Health%2C+Part+A%3A+Environmental+Science+and+Engineering+%26+Toxic+and+Hazardous+Substance+Control&rft.atitle=Chemically+bonded+phosphate+ceramics+for+low-level+mixed-waste+stabilization&rft.au=Singh%2C+D%3BWagh%2C+A+S%3BCunnane%2C+J+C%3BMayberry%2C+J+L&rft.aulast=Singh&rft.aufirst=D&rft.date=1997-01-01&rft.volume=A32&rft.issue=2&rft.spage=527&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Science+and+Health%2C+Part+A%3A+Environmental+Science+and+Engineering+%26+Toxic+and+Hazardous+Substance+Control&rft.issn=03601226&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 - waste treatment; ceramics; phosphates; ash; magnesium compounds; physicochemical properties ER - TY - JOUR T1 - Adaptive sampling and analysis programs for contaminated soils AN - 1524613387; 2014-031410 AB - Adaptive sampling and analysis programs (ASAPs) provide a cost-effective alternative to traditional sampling program designs. ASAPs are based on field analytical methods for rapid sample turnaround and field-based decision support for guiding the progress of the sampling program. One common objective of ASAPs is to delineate contamination present in soils, either to support feasibility studies or remedial action designs. An ASAP based on portable gas chromatograph/ mass spectrograph (GC/MS) technologies developed at Tufts University combined with decision support tools created at Argonne National Laboratory was used to delineate explosives contamination in soils at Joliet Army Ammunition Plant, Joliet, Illinois. Tufts' GC/MS technologies provided contaminant-specific identification and quantification with rapid sample turnaround and high sample throughput. Argonne's decision support tools estimated contamination extent, determined the uncertainty associated with those estimates, and indicated where sampling should continue to minimize uncertainty. In the case of Joliet, per sample analytical costs were reduced by 75 percent as compared to the cost of off-site laboratory analyses for explosives. The use of an ASAP resulted in a much more accurate identification and delineation of contaminated areas than a traditional sampling program would have with the same number of samples collected on a regular grid. While targeting explosives contamination in soils at Joliet, the ASAP technologies used in this demonstration have much broader application. Abstract Copyright (1997), Wiley Periodicals, Inc., A Wiley Company. JF - Remediation (New York, NY) AU - Johnson, Robert AU - Quinn, John AU - Durham, Lisa AU - Williams, Gustavious AU - Robbat, Albert, Jr Y1 - 1997 PY - 1997 DA - 1997 SP - 81 EP - 96 PB - John Wiley & Sons, New York, NY VL - 7 IS - 3 SN - 1051-5658, 1051-5658 KW - United States KW - hazardous waste KW - Bayesian analysis KW - reclamation KW - data processing KW - trinitrotoluene KW - techniques KW - Will County Illinois KW - remediation KW - explosives KW - sampling KW - Joliet Army Ammunition Plant KW - toxic materials KW - monitoring KW - Illinois KW - statistical analysis KW - pollution KW - optimization KW - geostatistics KW - decision-making KW - Joliet Illinois KW - computer programs KW - case studies KW - organic compounds KW - planning KW - soil pollution KW - military facilities KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1524613387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Remediation+%28New+York%2C+NY%29&rft.atitle=Adaptive+sampling+and+analysis+programs+for+contaminated+soils&rft.au=Johnson%2C+Robert%3BQuinn%2C+John%3BDurham%2C+Lisa%3BWilliams%2C+Gustavious%3BRobbat%2C+Albert%2C+Jr&rft.aulast=Johnson&rft.aufirst=Robert&rft.date=1997-01-01&rft.volume=7&rft.issue=3&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Remediation+%28New+York%2C+NY%29&rft.issn=10515658&rft_id=info:doi/10.1002%2Frem.3440070307 L2 - http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291520-6831 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2014-01-01 N1 - Number of references - 9 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-05-15 N1 - SubjectsTermNotLitGenreText - Bayesian analysis; case studies; computer programs; data processing; decision-making; explosives; geostatistics; hazardous waste; Illinois; Joliet Army Ammunition Plant; Joliet Illinois; military facilities; monitoring; optimization; organic compounds; planning; pollution; reclamation; remediation; sampling; soil pollution; statistical analysis; techniques; toxic materials; trinitrotoluene; United States; Will County Illinois DO - http://dx.doi.org/10.1002/rem.3440070307 ER - TY - JOUR T1 - Dynamic model for UASB reactor including reactor hydraulics, reaction, and diffusion AN - 13631032; 199705387 AB - A dynamic model for upflow anaerobic sludge blanket (UASB) reactors with methanogenic anaerobic granules were developed in terms of mass transfer limitations, biological reaction kinetics and integration of the reactor hydraulics. Modelling was carried out on a bench-scale UASB reactor treating a synthetic brewery waste and which was operated at an organic loading rate of 10 kg COD per m3.d and a hydraulic detention period of 11 h. Tracer studies used a lithium chloride solution that was introduced into the UASB reactor recirculation line, with sodium acetate being used as the modelling substrate. The response of UASB reactors is most sensitive to variations in granule radius and least sensitive to the liquid film mass transfer coefficient. There are 31 references. JF - Journal of Environmental Engineering AU - Wu, M M AU - Hickey, R F AD - Argonne National Laboratory, Ill. Y1 - 1997 PY - 1997 DA - 1997 SP - 244 EP - 252 VL - 123 IS - 3 SN - 0733-9372, 0733-9372 KW - Lithium chloride KW - Modelling (-general-) KW - Sodium acetate KW - Aqualine Abstracts KW - AQ 00007:Industrial Effluents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13631032?accountid=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+Engineering&rft.atitle=Dynamic+model+for+UASB+reactor+including+reactor+hydraulics%2C+reaction%2C+and+diffusion&rft.au=Wu%2C+M+M%3BHickey%2C+R+F&rft.aulast=Wu&rft.aufirst=M&rft.date=1997-01-01&rft.volume=123&rft.issue=3&rft.spage=244&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Engineering&rft.issn=07339372&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Use of stable oxygen and carbon isotope analyses for monitoring the pathways and rates of intrinsic and enhanced in situ biodegradation AN - 13628738; 199705184 AB - The occurrence, pathways and rates of in situ biodegradation of fuel hydrocarbons by a mixed bacterial culture were measured using stable carbon and oxygen isotope analyses of carbon dioxide and molecular oxygen, respectively. The change in oxygen concentration after about 30 per cent diesel degradation was relatively small. The carbon dioxide concentration did not provide an accurate estimate of diesel degradation. The first-order rate constants for contaminant degradation obtained from oxygen and contaminant concentrations were in good agreement with those obtained from isotopic data for oxygen. There are 34 references. JF - Environmental Science & Technology AU - Aggarwal, P K AU - Fuller, ME AU - Gurgas, M M AU - Manning, J F AU - Dillon, MA AD - Argonne National Laboratory, Ill. Y1 - 1997 PY - 1997 DA - 1997 SP - 590 EP - 596 VL - 31 IS - 2 SN - 0013-936X, 0013-936X KW - Analysis KW - Aqualine Abstracts KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/13628738?accountid=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=Use+of+stable+oxygen+and+carbon+isotope+analyses+for+monitoring+the+pathways+and+rates+of+intrinsic+and+enhanced+in+situ+biodegradation&rft.au=Aggarwal%2C+P+K%3BFuller%2C+ME%3BGurgas%2C+M+M%3BManning%2C+J+F%3BDillon%2C+MA&rft.aulast=Aggarwal&rft.aufirst=P&rft.date=1997-01-01&rft.volume=31&rft.issue=2&rft.spage=590&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 - 2000-09-01 N1 - SuppNotes - Publication focus: Experimental. N1 - Last updated - 2011-12-12 ER - TY - JOUR T1 - Characterization of partial anaerobic metabolic pathway for 2,4,6-trinitrotoluene degradation by a sulfate-reducing bacterial consortium. AN - 78658246; 8989860 AB - The anaerobic degradative pathway for metabolism of 2,4,6-trinitrotoluene (TNT) by a consortium of Desulfovibrio spp. isolated from a creek sediment was studied. This consortium has the metabolic capability to degrade TNT to fatty acids. The growth of the consortium and the metabolism of TNT were greatly enhanced in the presence of an additional carbon source like pyruvate. The optimal concentration of pyruvate for the maximum rate of TNT degradation was 15-20 mM. Various intermediates of TNT metabolism were identified. The first step in the pathway was reduction of TNT to 4-amino-2,6-dinitrotoluene and 2-amino-4,6-dinitrotoluene, which were further reduced to 2,4-diamino,6-nitrotoluene. The next intermediate to appear in the culture medium was nitrobenzoic acid, followed by cyclohexanone, 2-methyl pentanoic acid, butyric acid, and acetic acid. A study using radiolabeled TNT showed that no CO2 was produced from TNT during metabolism. The mass balance of the radiolabeled study showed that 49.6% of the TNT was converted to acetic acid, 28% was assimilated into biomass as trichloroacetic acid precipitable materials, and the rest was distributed as various TNT intermediates. Most Desulfovibrio spp. are incomplete oxidizers that are unable to carry out the terminal oxidation of organic substrates. The major end product of TNT metabolism was acetic acid. The bacteria grew on all the TNT intermediates tested as sole source of carbon, except on acetic acid, confirming that the Desulfovibrio spp. have the enzymes necessary for complete degradation of TNT to acetate. JF - Canadian journal of microbiology AU - Boopathy, R AU - Manning, J F AD - Environmental Research Division, Argonne National Laboratory, IL 60439, USA. ramaraj_boopathy@qmgate.anl.gov Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 1203 EP - 1208 VL - 42 IS - 12 SN - 0008-4166, 0008-4166 KW - Fatty Acids KW - 0 KW - Sulfates KW - Trinitrotoluene KW - 118-96-7 KW - Nitrogen KW - N762921K75 KW - Acetic Acid KW - Q40Q9N063P KW - Index Medicus KW - Oxidation-Reduction KW - Mass Spectrometry KW - Fatty Acids -- biosynthesis KW - Biodegradation, Environmental KW - Nitrogen -- metabolism KW - Acetic Acid -- metabolism KW - Metabolism KW - Anaerobiosis KW - Sulfates -- metabolism KW - Desulfovibrio -- growth & development KW - Trinitrotoluene -- metabolism KW - Desulfovibrio -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78658246?accountid=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=Canadian+journal+of+microbiology&rft.atitle=Characterization+of+partial+anaerobic+metabolic+pathway+for+2%2C4%2C6-trinitrotoluene+degradation+by+a+sulfate-reducing+bacterial+consortium.&rft.au=Boopathy%2C+R%3BManning%2C+J+F&rft.aulast=Boopathy&rft.aufirst=R&rft.date=1996-12-01&rft.volume=42&rft.issue=12&rft.spage=1203&rft.isbn=&rft.btitle=&rft.title=Canadian+journal+of+microbiology&rft.issn=00084166&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-02-24 N1 - Date created - 1997-02-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - The application of soft X-ray microscopy to the in-situ analysis of sporinite in coal AN - 52766826; 1997-015092 AB - Soft X-ray imaging and carbon near edge absorption fine structure spectroscopy (C-NEXAFS) has been used for the in-situ analysis of sporinite in a rank-variable suite of organic-rich sediments extending from up to high volatile A bituminous coal. The acquisition of chemically based images (contrast based on the 1s-1pi (super *) transition of unsaturated carbon), reveals a homogeneous chemical structure in the spore exine. C-NEXAFS microanalysis indicates a chemical structural evolution of the sporopollenin bio/geopolymer with increasing maturation. The most significant change in the C-NEXAFS spectrum is an increase in unsaturated carbon, presumably aromatic, with rank. The rate of "aromatization" in sporinite in coal exceeds that of the associated vitrinite. Increases in the concentration of unsaturated carbon are paralleled by losses of aliphatic and hydroxylated aliphatic carbon components. Carboxyl groups are present in low and variable concentrations. Absorption due to carboxyl persists in the most mature specimen in this series, a high volatile A bituminous coal. The reactions that drive sporopollenin chemical structural evolution during diagenesis presumably involve sequential dehydration, Diels-Alder cyclo-addition, and dehydrogenation reactions that ultimately lead to a progressively aromatized bio/geopolymer. JF - International Journal of Coal Geology AU - Cody, G D AU - Botto, R E AU - Ade, H AU - Wirick, S A2 - Lyons, P. C. A2 - Palmer, C. A. A2 - Bustin, R. M. A2 - Vassallo, A. M. Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 69 EP - 86 PB - Elsevier, Amsterdam VL - 32 IS - 1-4 SN - 0166-5162, 0166-5162 KW - organic materials KW - methods KW - aromatization KW - chemical analysis KW - exinite KW - organic residues KW - in situ KW - organic compounds KW - organic acids KW - X-ray data KW - sedimentary rocks KW - diagenesis KW - coal KW - carbon KW - carboxylic acids KW - sporinite KW - macerals KW - sporopollenin KW - C-NEXAFS spectra KW - 29A:Economic geology, geology of energy sources KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52766826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Coal+Geology&rft.atitle=The+application+of+soft+X-ray+microscopy+to+the+in-situ+analysis+of+sporinite+in+coal&rft.au=Cody%2C+G+D%3BBotto%2C+R+E%3BAde%2C+H%3BWirick%2C+S&rft.aulast=Cody&rft.aufirst=G&rft.date=1996-12-01&rft.volume=32&rft.issue=1-4&rft.spage=69&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Conference title - 1995 international chemical congress of Pacific Basin societies N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 2 tables, 4 plates N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aromatization; C-NEXAFS spectra; carbon; carboxylic acids; chemical analysis; coal; diagenesis; exinite; in situ; macerals; methods; organic acids; organic compounds; organic materials; organic residues; sedimentary rocks; sporinite; sporopollenin; X-ray data ER - TY - JOUR T1 - Diffusion of pyridine in Illinois No. 6 Coal; measuring the swelling and deswelling characteristics by combined methods of nuclear magnetic resonance (NMR) and nuclear magnetic resonance imaging (NMRI) AN - 52755925; 1997-015097 AB - The time-dependent swelling and deswelling of Illinois No. 6 coal by pyridine were measured by combined NMR and NMRI techniques. The results indicate that pyridine transport in this coal proceeds via Case II diffusion for swelling and via Fickian diffusion for deswelling. Once the relative pyridine concentrations reach values between 0.65 and 0.45, the coal's physical state changes from a glassy to a rubbery state. Transitions are well recorded by an inflection observed in the trend of spin-lattice relaxation or spin-spin relaxation of pyridine, as the coal swells and deswells. NMRI data indicate that the coal swelling is anisotropic, with swelling in a plane perpendicular to the coal bedding plane being 13% greater than that parallel to the coal bedding plane; however, the process of deswelling is almost isotropic. The differences between the swelling and deswelling characteristics are discussed from the viewpoint of coal's intrinsic structural properties and stored geologic pressure effects. JF - International Journal of Coal Geology AU - Hou, L AU - Hatcher, P G AU - Botto, R E A2 - Lyons, P. C. A2 - Palmer, C. A. A2 - Bustin, R. M. A2 - Vassallo, A. M. Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 167 EP - 189 PB - Elsevier, Amsterdam VL - 32 IS - 1-4 SN - 0166-5162, 0166-5162 KW - experimental studies KW - diffusion KW - organic residues KW - pyridine KW - NMR spectra KW - Illinois No. 6 Coal KW - physical properties KW - sedimentary rocks KW - coal KW - expansive materials KW - spectra KW - geochemistry KW - 29A:Economic geology, geology of energy sources KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52755925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Coal+Geology&rft.atitle=Diffusion+of+pyridine+in+Illinois+No.+6+Coal%3B+measuring+the+swelling+and+deswelling+characteristics+by+combined+methods+of+nuclear+magnetic+resonance+%28NMR%29+and+nuclear+magnetic+resonance+imaging+%28NMRI%29&rft.au=Hou%2C+L%3BHatcher%2C+P+G%3BBotto%2C+R+E&rft.aulast=Hou&rft.aufirst=L&rft.date=1996-12-01&rft.volume=32&rft.issue=1-4&rft.spage=167&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Coal+Geology&rft.issn=01665162&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01665162 LA - English DB - GeoRef N1 - Conference title - 1995 international chemical congress of Pacific Basin societies N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 1997-01-01 N1 - Number of references - 34 N1 - Document feature - illus. N1 - SuppNotes - Special issue N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - coal; diffusion; expansive materials; experimental studies; geochemistry; Illinois No. 6 Coal; NMR spectra; organic residues; physical properties; pyridine; sedimentary rocks; spectra ER - TY - JOUR T1 - The nature and fate of natural resins in the geosphere; VII, A radiocarbon ( (super 14) C) age scale for description of immature natural resins; an invitation to scientific debate AN - 52726037; 1997-032003 JF - Organic Geochemistry AU - Anderson, Ken B Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 251 EP - 253 PB - Pergamon, Oxford-New York VL - 25 IS - 3-4 SN - 0146-6380, 0146-6380 KW - organic materials KW - exinite KW - resins KW - organic minerals KW - isotopes KW - resinite KW - radioactive isotopes KW - carbon KW - amber KW - absolute age KW - macerals KW - C-14 KW - 03:Geochronology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52726037?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Organic+Geochemistry&rft.atitle=The+nature+and+fate+of+natural+resins+in+the+geosphere%3B+VII%2C+A+radiocarbon+%28+%28super+14%29+C%29+age+scale+for+description+of+immature+natural+resins%3B+an+invitation+to+scientific+debate&rft.au=Anderson%2C+Ken+B&rft.aulast=Anderson&rft.aufirst=Ken&rft.date=1996-12-01&rft.volume=25&rft.issue=3-4&rft.spage=251&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01466380 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 13 N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absolute age; amber; C-14; carbon; exinite; isotopes; macerals; organic materials; organic minerals; radioactive isotopes; resinite; resins ER - TY - RPRT T1 - Field demonstration of slurry reactor biotreatment of explosives-contaminated soils AN - 52163143; 2002-000131 AB - Bioslurry technology requires excavation and screening of soil to remove rocks, mixing soil with water to form a slurry, mixing the slurry in a reactor, and removal of the slurry from the reactor. Biodegradation of explosives also requires a co-substrate (e.g., molasses), pH>6, and aerobic-anoxic operation. In this study, the native microbial population degraded explosives in soil. Four reactors (350-380 gal) were operated at the Joliet Army Ammunition Plant: a control with no co-substrate, 20% and 10% weekly replacement (by volume) reactors, and a 5% daily replacement reactor. This design allowed investigation of different soil (and therefore TNT 2,4,6-trinitrotoluene) loading rates. The target soil slurry was 15% (weight/weight). Explosives concentrations in soil were 2,000-8,000 mg/kg. Environmental conditions were identical for all reactors, and temperature, pH, and dissolved oxygen were similar. This demonstration showed that the important process parameters for successful (>99%) removal of TNT are an organic co-substrate (molasses), operation in an aerobic-anoxic sequence, and temperature. Cold temperatures slowed the rate of microbial metabolism. The demonstration successfully removed explosives and microbial intermediates from the soil. In summary, the bioslurry system has a real potential to degrade explosives, particularly TNT, from soil. JF - Field demonstration of slurry reactor biotreatment of explosives-contaminated soils AU - Manning, J F AU - Boopathy, R AU - Breyfogle, E R Y1 - 1996/12// PY - 1996 DA - December 1996 SP - 181 KW - United States KW - oxygen KW - chemical explosions KW - trinitrotoluene KW - Will County Illinois KW - temperature KW - remediation KW - explosives KW - mixing KW - Joliet Army Ammunition Plant KW - water KW - soils KW - biodegradation KW - Illinois KW - explosions KW - pollutants KW - metabolism KW - statistical analysis KW - soil treatment KW - pollution KW - Joliet Illinois KW - bioremediation KW - organic compounds KW - populations KW - low temperature KW - military facilities KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52163143?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=Manning%2C+J+F%3BBoopathy%2C+R%3BBreyfogle%2C+E+R&rft.aulast=Manning&rft.aufirst=J&rft.date=1996-12-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Field+demonstration+of+slurry+reactor+biotreatment+of+explosives-contaminated+soils&rft.title=Field+demonstration+of+slurry+reactor+biotreatment+of+explosives-contaminated+soils&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number AD-A325 929/8NEG, Springfield, VA, United States N1 - SuppNotes - Final report; July 1994-Aug. 1995 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Regulation of thymus PCNA expression is altered in radiation-sensitive wasted mice. AN - 78623045; 8968049 AB - Mice bearing the autosomal recessive mutation 'wasted' (wst/wst) express a disease syndrome characterized by neurologic dysfunction, immunodeficiency, and increased sensitivity to the killing effects of ionizing radiation relative to normal littermates (wst/-) and to parental control mice (BCF1, BALB/c, and C57BL/6). Many of these abnormalities, evident as early as 21 days of age, have been localized to thymic tissues and T-lymphocyte populations. Comparison of two-dimensional gel electrophoresis patterns of proteins from wst/wst and control mouse thymus revealed that an acidic protein with a molecular mass of approximately 30 kDa was consistently expressed at lower levels in wasted mice than in controls. Microsequencing of this protein revealed a sequence of 19 N-terminal amino acids identical to the sequence of murine proliferating cell nuclear antigen (PCNA). Northern blot analyses of PCNA expression in thymus and spleen demonstrated lower accumulation of PCNA-specific transcripts in wasted mice compared with that in controls. Because PCNA expression is associated with cell cycle progression, the percentages of thymic and splenic cells in each stage of the cell cycle were examined; there were no differences in the cell stage distribution of lymphocytes freshly isolated from wasted mice compared with littermate or parental controls. After activation with concanavalin A, however, splenocytes from wst/wst mice showed a lower percentage of cells in S phase compared with that in controls. Southern blots with PCNA probes showed that the PCNA loci from the wasted mice and their normal littermates have the same restriction maps. While differences in polymerase chain reaction (PCR) priming were obtained, these could be attributed to strain-specific differences in mouse PCNA pseudogenes. These results suggest the presence of an alteration in the pathway leading to PCNA expression in radiation-sensitive tissues of wasted mice. JF - Carcinogenesis AU - Woloschak, G E AU - Paunesku, T AU - Libertin, C R AU - Chang-Liu, C M AU - Churchill, M AU - Panozzo, J AU - Grdina, D AU - Gemmell, M A AU - Giometti, C AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439-4833, USA. Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 2357 EP - 2365 VL - 17 IS - 11 SN - 0143-3334, 0143-3334 KW - Proliferating Cell Nuclear Antigen KW - 0 KW - Index Medicus KW - Phenotype KW - Animals KW - Base Sequence KW - Sequence Homology, Nucleic Acid KW - Electrophoresis, Gel, Two-Dimensional KW - Molecular Sequence Data KW - Mice, Inbred C57BL KW - Mice KW - Mice, Inbred BALB C KW - Male KW - Female KW - Wasting Syndrome -- metabolism KW - Thymus Gland -- metabolism KW - Thymus Gland -- physiology KW - Radiation Tolerance -- physiology KW - Wasting Syndrome -- genetics KW - Proliferating Cell Nuclear Antigen -- biosynthesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78623045?accountid=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=Carcinogenesis&rft.atitle=Regulation+of+thymus+PCNA+expression+is+altered+in+radiation-sensitive+wasted+mice.&rft.au=Woloschak%2C+G+E%3BPaunesku%2C+T%3BLibertin%2C+C+R%3BChang-Liu%2C+C+M%3BChurchill%2C+M%3BPanozzo%2C+J%3BGrdina%2C+D%3BGemmell%2C+M+A%3BGiometti%2C+C&rft.aulast=Woloschak&rft.aufirst=G&rft.date=1996-11-01&rft.volume=17&rft.issue=11&rft.spage=2357&rft.isbn=&rft.btitle=&rft.title=Carcinogenesis&rft.issn=01433334&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1997-01-27 N1 - Date created - 1997-01-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Geothermal and hydrological constraints on the origin of bacteria in hydraulically tight, gas-bearing sandstones in Piceance Basin, Colorado AN - 52646339; 1998-011472 JF - Eos, Transactions, American Geophysical Union AU - Yao, Qingjun AU - Onstott, Tullis C AU - Colwell, F S AU - Lafreniere, Lorraine AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 250 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - United States KW - geologic thermometry KW - oxygen KW - isotopes KW - Cretaceous KW - vitrinite KW - natural gas KW - Mesaverde Group KW - sandstone KW - petroleum KW - tight sands KW - Piceance Creek basin KW - microthermometry KW - Upper Cretaceous KW - stable isotopes KW - temperature KW - reservoir rocks KW - ground water KW - Cenozoic KW - sedimentary rocks KW - geothermal systems KW - inclusions KW - macerals KW - deuterium KW - geochemistry KW - thermophilic taxa KW - isotope ratios KW - connate waters KW - Wasatch Formation KW - Paleogene KW - O-18/O-16 KW - Mesozoic KW - Tertiary KW - D/H KW - hydrogen KW - bacteria KW - fluid inclusions KW - Rio Blanco County Colorado KW - Colorado KW - reflectance KW - northwestern Colorado KW - clastic rocks KW - 06A:Sedimentary petrology KW - 29A:Economic geology, geology of energy sources KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52646339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Geothermal+and+hydrological+constraints+on+the+origin+of+bacteria+in+hydraulically+tight%2C+gas-bearing+sandstones+in+Piceance+Basin%2C+Colorado&rft.au=Yao%2C+Qingjun%3BOnstott%2C+Tullis+C%3BColwell%2C+F+S%3BLafreniere%2C+Lorraine%3BAnonymous&rft.aulast=Yao&rft.aufirst=Qingjun&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=250&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 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - bacteria; Cenozoic; clastic rocks; Colorado; connate waters; Cretaceous; D/H; deuterium; fluid inclusions; geochemistry; geologic thermometry; geothermal systems; ground water; hydrogen; inclusions; isotope ratios; isotopes; macerals; Mesaverde Group; Mesozoic; microthermometry; natural gas; northwestern Colorado; O-18/O-16; oxygen; Paleogene; petroleum; Piceance Creek basin; reflectance; reservoir rocks; Rio Blanco County Colorado; sandstone; sedimentary rocks; stable isotopes; temperature; Tertiary; thermophilic taxa; tight sands; United States; Upper Cretaceous; vitrinite; Wasatch Formation ER - TY - JOUR T1 - The determination of lanthanides and actinides by laser ablation ICP-AES AN - 52618868; 1998-018552 JF - Eos, Transactions, American Geophysical Union AU - Johnson, Stephen G AU - Goodall, Phillip S AU - Anonymous Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 774 PB - American Geophysical Union, Washington, DC VL - 77 IS - 46, Suppl. SN - 0096-3941, 0096-3941 KW - high-resolution methods KW - chemical analysis KW - precision KW - inductively coupled plasma methods KW - ablation KW - laser methods KW - techniques KW - trace-element analyses KW - emission spectroscopy KW - metals KW - rare earths KW - spectroscopy KW - actinides KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52618868?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+determination+of+lanthanides+and+actinides+by+laser+ablation+ICP-AES&rft.au=Johnson%2C+Stephen+G%3BGoodall%2C+Phillip+S%3BAnonymous&rft.aulast=Johnson&rft.aufirst=Stephen&rft.date=1996-11-01&rft.volume=77&rft.issue=46%2C+Suppl.&rft.spage=774&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, 1996 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1998-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - ablation; actinides; chemical analysis; emission spectroscopy; high-resolution methods; inductively coupled plasma methods; laser methods; metals; precision; rare earths; spectroscopy; techniques; trace-element analyses ER - TY - JOUR T1 - Salt caverns show promise for nonhazardous oil field waste disposal AN - 50937106; 1997-010819 JF - Oil & Gas Journal AU - Veil, John A Y1 - 1996/11// PY - 1996 DA - November 1996 SP - 42 EP - 45 PB - PennWell, Tulsa, OK VL - 94 IS - 47 SN - 0030-1388, 0030-1388 KW - United States KW - underground storage KW - regulations KW - waste disposal KW - solution features KW - design KW - remediation KW - caverns KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50937106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oil+%26+Gas+Journal&rft.atitle=Salt+caverns+show+promise+for+nonhazardous+oil+field+waste+disposal&rft.au=Veil%2C+John+A&rft.aulast=Veil&rft.aufirst=John&rft.date=1996-11-01&rft.volume=94&rft.issue=47&rft.spage=42&rft.isbn=&rft.btitle=&rft.title=Oil+%26+Gas+Journal&rft.issn=00301388&rft_id=info:doi/ L2 - http://ogj.pennnet.com/home.cfm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 7 N1 - PubXState - OK N1 - Document feature - illus. incl. sketch map N1 - SuppNotes - Based on a paper presented at the 3rd Int. Pet. Environ. Conf., Albuquerque, NM, Sept. 24-27 N1 - Last updated - 2012-06-07 N1 - CODEN - OIGJAV N1 - SubjectsTermNotLitGenreText - caverns; design; regulations; remediation; solution features; underground storage; United States; waste disposal ER - TY - JOUR T1 - Effects of cadmium on osteoclast formation and activity in vitro. AN - 78477562; 8887463 AB - Chronic exposure to cadmium has been linked to bone loss, low bone mass, and increased incidence of fracture. To determine if Cd could directly increase the formation of cells responsible for bone resorption, we cultured normal canine bone marrow cells containing the progenitor cells for osteoclasts. Cultures were evaluated for the number of multinucleate osteoclast-like cells (MNOCs) formed. Exposure to Cd (10-100 nM) increased the number of MNOCs formed over control values when cultured in the presence but not in the absence of a bone wafer. The MNOCs formed were functional, evidenced by pits excavated on the bone wafers included in the cultures. By 12 days, MNOCs formed in the presence of 50 nM Cd excavated significantly more pits and a greater pit area than did untreated MNOCs. By 14 days, the control values were similar to those of the Cd-exposed MNOCs, but pit formation was enhanced by Cd in that the ratio of pit complexes to single pits was increased twofold over that for untreated cultures. Mature osteoclasts, isolated from the long bones of rat neonates and cultured for 1-3 days on bone slices, provided a direct method to assess the effect of Cd on osteoclast activity. Exposure of osteoclast cultures to 100 nM Cd increased the number of osteoclasts present over that for untreated osteoclasts by a factor of 1.7 +/- 0.1, the number of pits excavated by 2.8 +/- 0.6, the area excavated by 3.2 +/- 0.8, and the area excavated per osteoclast by 1.8 +/- 0.4 (mean +/- SE; n = six experiments). These data suggest that Cd accelerates the differentiation of new osteoclasts from their progenitor cells and activates or increases the activity of mature osteoclasts. JF - Toxicology and applied pharmacology AU - Wilson, A K AU - Cerny, E A AU - Smith, B D AU - Wagh, A AU - Bhattacharyya, M H AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Illinois 60439-4833, USA. Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 451 EP - 460 VL - 140 IS - 2 SN - 0041-008X, 0041-008X KW - Cadmium KW - 00BH33GNGH KW - Index Medicus KW - Rats KW - Animals KW - Rats, Sprague-Dawley KW - Cells, Cultured KW - Dogs KW - Cell Nucleus -- drug effects KW - Cell Separation KW - Cell Differentiation -- drug effects KW - Female KW - Cadmium -- pharmacology KW - Bone Resorption -- chemically induced KW - Osteoclasts -- cytology KW - Osteoclasts -- drug effects KW - Bone Resorption -- pathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78477562?accountid=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=Effects+of+cadmium+on+osteoclast+formation+and+activity+in+vitro.&rft.au=Wilson%2C+A+K%3BCerny%2C+E+A%3BSmith%2C+B+D%3BWagh%2C+A%3BBhattacharyya%2C+M+H&rft.aulast=Wilson&rft.aufirst=A&rft.date=1996-10-01&rft.volume=140&rft.issue=2&rft.spage=451&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 - 1997-01-06 N1 - Date created - 1997-01-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - RPRT T1 - Preliminary engineering report; contaminated groundwater seeps 317/319/ENE area AN - 52654173; 1998-002751 AB - When the Resource Conservation and Recovery Act Facility Investigation (RFI) in the 317/319/ENE Area of Argonne National Laboratory-East (ANL-E) was being completed, groundwater was discovered moving to the surface through a series of seeps. The seeps are located approximately 600 ft south of the ANL fence line in Waterfall Glen Forest Preserve. Samples of this water were collected and analyzed for selected parameters. Two of five seeps sampled were found to contain detectable levels of organic contaminants. Three chemical species were identified: chloroform (14-25 mu g/L), carbon tetrachloride (56-340 mu g/L), and tetrachloroethylene (3-6 mu g/L). The other seeps did not contain detectable levels of volatile organic compounds (VOCs). The water issuing from these two contaminated seeps flows into a narrow ravine, where it is visible as a trickle of water flowing through sand and gravel deposits on the floor of the ravine. Approximately 100-ft downstream of the seep area, the contaminated water is no longer visible, having drained back into the soil in the bed of the ravine. Figure 1 shows the location of the 317/319/ENE Area in relation to the ANL-E site and the Waterfall Glen Forest Preserve. JF - Preliminary engineering report; contaminated groundwater seeps 317/319/ENE area Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 72 VL - ANL/EMO/RP-91327 KW - United States KW - soils KW - chlorinated hydrocarbons KW - Illinois KW - site exploration KW - pollutants KW - pollution KW - chemical waste KW - tetrachloroethylene KW - seepage KW - remediation KW - ground water KW - carbon tetrachloride KW - aquifers KW - volatiles KW - organic compounds KW - volatile organic compounds KW - industrial waste KW - halogenated hydrocarbons KW - Argonne National Laboratory KW - ecology KW - water pollution KW - Cook County Illinois KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52654173?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=1996-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Preliminary+engineering+report%3B+contaminated+groundwater+seeps+317%2F319%2FENE+area&rft.title=Preliminary+engineering+report%3B+contaminated+groundwater+seeps+317%2F319%2FENE+area&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97000714NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - X-ray and neutron crystal-structure refinements of a boron-bearing vesuvianite AN - 52236159; 2001-034640 AB - The crystal structure of a sample of B-bearing vesuvianite, Ca (sub 19) (Al (sub 6.20) Fe (super 3+) (sub 1.46) Mg (sub 3.65) Fe (super 2+) (sub 1.59) Ti (sub 0.16) Mn (sub 0.07) )(Si (sub 17.57) Al (sub 0.43) )B (sub 2.73) O (sub 68) ({OH} (sub 2.94) F (sub 0.65) O (sub 6.41) ), a 15.734(1), c 11.719(1) Aa V 2902.2(5) Aa (super 3) , P4/nnc, has been refined to an R index of 3.8% based on 1709 observed reflections measured at 298 K with MoKalpha X-radiation, and to an R(F (super 2) ) index of 9.4% based on 7482 observed reflections measured at 15 K by TOF (time-of-flight) neutron diffraction. The results of the two refinements confirm the findings of Groat et al. (1992, 1994a, b) on the mechanisms of incorporation of B into the vesuvianite structure. Furthermore, the neutron refinement allowed location of the H, which occurs only at the H(1) position in the crystal examined here. The absence of H at the H(2) channel position, together with the refined scattering at the T(2) site and local bond-valence considerations at the O(10) anion, showed that T(2) is completely occupied by B. The refined site-populations of the O(10) and O(12) sites are compatible only with 0.15 (super [2]) B and 0.85 (super [3]) B at the T(2) site. Other crystals of B-bearing vesuvianite also contain (super [3]) B at T(2) (Groat et al. 1994b). The incorporation of B at T(2) in different coordination environments provides a flexible mechanism that can act in conjunction with other substitutions elsewhere in the structure to satisfy requirements of long-range electroneutrality. JF - The Canadian Mineralogist AU - Groat, Lee A AU - Hawthorne, Frank C AU - Lager, George A AU - Schultz, Arthur J AU - Ercit, T Scott Y1 - 1996/10// PY - 1996 DA - October 1996 SP - 1059 EP - 1070 PB - Mineralogical Association of Canada, Ottawa, ON VL - 34, Part 5 SN - 0008-4476, 0008-4476 KW - United States KW - Tulare County California KW - sorosilicates KW - silicates KW - refinement KW - Bill Waley Mine KW - X-ray diffraction data KW - crystal structure KW - bonding KW - electron probe data KW - California KW - orthosilicates KW - neutron diffraction data KW - boron KW - valency KW - crystal chemistry KW - chemical composition KW - reflectance KW - vesuvianite KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52236159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Canadian+Mineralogist&rft.atitle=X-ray+and+neutron+crystal-structure+refinements+of+a+boron-bearing+vesuvianite&rft.au=Groat%2C+Lee+A%3BHawthorne%2C+Frank+C%3BLager%2C+George+A%3BSchultz%2C+Arthur+J%3BErcit%2C+T+Scott&rft.aulast=Groat&rft.aufirst=Lee&rft.date=1996-10-01&rft.volume=34%2C+Part+5&rft.issue=&rft.spage=1059&rft.isbn=&rft.btitle=&rft.title=The+Canadian+Mineralogist&rft.issn=00084476&rft_id=info:doi/ L2 - http://www.mineralogicalassociation.ca/template/EJournal/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2001-01-01 N1 - Number of references - 17 N1 - PubXState - ON N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CAMIA6 N1 - SubjectsTermNotLitGenreText - Bill Waley Mine; bonding; boron; California; chemical composition; crystal chemistry; crystal structure; electron probe data; neutron diffraction data; orthosilicates; refinement; reflectance; silicates; sorosilicates; Tulare County California; United States; valency; vesuvianite; X-ray diffraction data ER - TY - JOUR T1 - A revised model for the calculation of absorbed energy in the gastrointestinal tract. AN - 78222896; 8698571 AB - The goal of this research was to develop a more complete gastrointestinal (GI) tract model for use in internal dose assessment. This paper summarizes the development of a revised mathematical model of the GI tract. The current GI tract model assumes the wall can be represented as a single soft tissue layer without regard to the radiosensitivity of the cells. The goal of the GI tract revision was to develop geometric regions that separate the radiosensitive cells from the less radiosensitive cells. Once the model was revised, it was coded into the Electron Gamma Shower 4 (EGS4) computational package for calculation of photon and electron absorbed fraction values. Photon absorbed fraction values were calculated for twelve discrete energies. For the photon absorbed fraction calculations, the EGS4 program was run so that secondary particles created in photon interactions were followed using the electron tracking capabilities of EGS4. The results of the photon absorbed fraction calculations provided better estimates of the energy deposited in the radiosensitive cells when the target organ was the source. In cases where the target organ was not the source, the photon absorbed fraction values did not provide better estimates than those obtained using the current GI tract model. An increase in the number of photon histories should provide better estimates of the photon absorbed fraction for these cases. Electron absorbed fraction values also were calculated for twelve discrete electron energies. The results of these calculations provided the expected pattern of energy deposition and better estimates than those currently available. The annual limit on intake was recalculated for a single radionuclide to demonstrate the affect of these improved absorbed fraction values on internal dose assessment. The radionuclide was selected for two reasons: 1) it was a beta emitting radionuclide; and 2) the annual limit on intake for ingestion was based on the non-stochastic committed dose equivalent limit to the lower large intestine. The calculated annual limit on intake was found to be three times greater than the annual limit on intake provided in ICRP Publication 30. There are many radionuclides that have a section of the GI tract as the limiting organ for ingestion. It is expected that the annual limit on intake value for these radionuclides would increase when the revised GI tract model is employed for internal dose assessment. JF - Health physics AU - Poston, J W AU - Kodimer, K A AU - Bolch, W E AD - Argonne National Laboratory-West, Idaho Falls, ID 83403-2528, USA. Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 307 EP - 314 VL - 71 IS - 3 SN - 0017-9078, 0017-9078 KW - Index Medicus KW - Electrons KW - Photons KW - Humans KW - Monte Carlo Method KW - Radiation Dosage KW - Digestive System -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78222896?accountid=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+revised+model+for+the+calculation+of+absorbed+energy+in+the+gastrointestinal+tract.&rft.au=Poston%2C+J+W%3BKodimer%2C+K+A%3BBolch%2C+W+E&rft.aulast=Poston&rft.aufirst=J&rft.date=1996-09-01&rft.volume=71&rft.issue=3&rft.spage=307&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 - 1996-09-05 N1 - Date created - 1996-09-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Calculation of absorbed energy in the gastrointestinal tract. AN - 78218271; 8698570 AB - One goal of this research was to reproduce the photon specific absorbed fraction calculations of Cristy and Eckerman using their gastrointestinal (GI) tract model. A second goal was to calculate photon specific absorbed fraction values for their GI tract model using electron tracking techniques. A final goal was to calculate electron absorbed fraction values for their GI tract model. This paper summarizes the work performed using the currently accepted model of the GI tract provided by Cristy and Eckerman. Their model was coded into the Electron Gamma Shower 4 (EGS4) computational package for calculation of photon specific absorbed fraction values. To benchmark the initial code, the EGS4 program was run so that all secondary particles deposited their energy at the site of the primary photon interaction (i.e., without electron tracking). The results obtained from these preliminary calculations were compared to those provided by Cristy and Eckerman to verify and benchmark the program. Next, specific absorbed fraction values were calculated for twelve discrete photon energies using the electron tracking capabilities of EGS4. These photon specific absorbed fraction values were compared to those calculated without electron tracking. Finally, absorbed fraction values were calculated for twelve discrete electron energies. The electron absorbed fraction values were compared to those calculated without electron tracking. Finally, absorbed fraction values were calculated for twelve discrete electron energies. The electron absorbed fraction values were compared to the ICRP "one-half assumption" for electron energy deposition in the wall of the GI tract. JF - Health physics AU - Poston, J W AU - Kodimer, K A AU - Bolch, W E AD - Argonne National Laboratory-West, Idaho Falls, ID 83403-2528, USA. Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 300 EP - 306 VL - 71 IS - 3 SN - 0017-9078, 0017-9078 KW - Index Medicus KW - Electrons KW - Photons KW - Humans KW - Monte Carlo Method KW - Radiation Dosage KW - Digestive System -- radiation effects UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78218271?accountid=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=Calculation+of+absorbed+energy+in+the+gastrointestinal+tract.&rft.au=Poston%2C+J+W%3BKodimer%2C+K+A%3BBolch%2C+W+E&rft.aulast=Poston&rft.aufirst=J&rft.date=1996-09-01&rft.volume=71&rft.issue=3&rft.spage=300&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 - 1996-09-05 N1 - Date created - 1996-09-05 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Demographic Change in the Republic of Palau AN - 61564660; 9910524 AB - Examines the demographic evolution of the islands currently comprising the Republic of Palau, considering changes in total population & shifts in geographic distribution. Discussed are interaction with cultures from outside Oceania & the demographic impacts of this interaction. Also explored are shifts in the regional distribution of population, focusing on data from censuses conducted 1920-1990. Data on fertility, mortality, & mobility provide clues to possible causes of population change over the past two centuries. An examination of the ecological, economic, & sociocultural repercussions of demographic changes point to fundamental development challenges facing this small island nation. 20 Tables, 5 Figures, 143 References. Adapted from the source document. JF - Pacific Studies AU - Gorenflo, L J AD - Argonne National Laboratory, Washington, DC Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 37 EP - 106 VL - 19 IS - 3 SN - 0275-3596, 0275-3596 KW - Caroline Islands KW - Demographic Change KW - Geographic Distribution KW - Micronesia KW - Population Distribution KW - article KW - 1837: demography and human biology; demography (population studies) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/61564660?accountid=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=Pacific+Studies&rft.atitle=Demographic+Change+in+the+Republic+of+Palau&rft.au=Gorenflo%2C+L+J&rft.aulast=Gorenflo&rft.aufirst=L&rft.date=1996-09-01&rft.volume=19&rft.issue=3&rft.spage=37&rft.isbn=&rft.btitle=&rft.title=Pacific+Studies&rft.issn=02753596&rft_id=info:doi/ LA - English DB - Sociological Abstracts N1 - Date revised - 2007-04-01 N1 - Last updated - 2016-09-28 N1 - CODEN - PSTUEA N1 - SubjectsTermNotLitGenreText - Demographic Change; Micronesia; Caroline Islands; Population Distribution; Geographic Distribution ER - TY - JOUR T1 - Argonne National Laboratory-East site environmental report for calendar year 1995 AN - 52653696; 1998-003130 AB - This report presents the environmental report for the Argonne National Laboratory-East for the year of 1995. Topics discussed include: general description of the site including climatology, geology, seismicity, hydrology, vegetation, endangered species, population, water and land use, and archaeology; compliance summary; environmental program information; environmental nonradiological program information; ground water protection; and radiological monitoring program. JF - ANL (Argonne National Laboratory) AU - Golchert, N W AU - Kolzow, R G Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 326 PB - Argonne National Laboratory, Argonne, IL SN - 0192-3188, 0192-3188 KW - United States KW - protection KW - hazardous waste KW - aquifer vulnerability KW - Plantae KW - monitoring KW - Illinois KW - pollutants KW - effluents KW - pollution KW - radioactive waste KW - ground water KW - aquifers KW - seismicity KW - waste disposal KW - land use KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52653696?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=Golchert%2C+N+W%3BKolzow%2C+R+G&rft.aulast=Golchert&rft.aufirst=N&rft.date=1996-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Argonne+National+Laboratory-East+site+environmental+report+for+calendar+year+1995&rft.title=Argonne+National+Laboratory-East+site+environmental+report+for+calendar+year+1995&rft.issn=01923188&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97001373NEG, Springfield, VA, United States N1 - PubXState - IL N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 N1 - CODEN - XANLDG N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; effluents; ground water; hazardous waste; Illinois; land use; monitoring; Plantae; pollutants; pollution; protection; radioactive waste; seismicity; United States; waste disposal ER - TY - JOUR T1 - A new glass could be key to safe plutonium disposal AN - 50940763; 1996-081983 JF - Environmental Geology (Berlin) AU - Barrera, RoseMary Y1 - 1996/09// PY - 1996 DA - September 1996 SP - 115 PB - Springer International, New York-Berlin VL - 28 IS - 2 SN - 0943-0105, 0943-0105 KW - methods KW - plutonium KW - metals KW - waste disposal KW - glass materials KW - actinides KW - preventive measures KW - radioactive waste KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50940763?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=A+new+glass+could+be+key+to+safe+plutonium+disposal&rft.au=Barrera%2C+RoseMary&rft.aulast=Barrera&rft.aufirst=RoseMary&rft.date=1996-09-01&rft.volume=28&rft.issue=2&rft.spage=115&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 - 1996-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; glass materials; metals; methods; plutonium; preventive measures; radioactive waste; waste disposal ER - TY - JOUR T1 - The effects of 5-fluorouracil and doxorubicin on expression of human immunodeficiency virus type 1 long terminal repeat. AN - 78204787; 8697447 AB - Previous work by many groups has documented induction of the human immunodeficiency virus (HIV) long terminal repeat (LTR) following exposure of cells to ultraviolet light and other DNA damaging agents. Our experiments set out to determine the relative activation or repression of the HIV-LTR in response to two classes of chemotherapeutic agents: Doxorubicin is a DNA damage-inducing agent, and 5-fluorouracil has an antimetabolic mode of action. Using HeLa cells stably transfected with a construct in which HIV-LTR drives expression of the chloramphenicol acetyl transferase reporter gene, we demonstrated an up to ten-fold induction following doxorubicin treatment at 24 h post-treatment. This induction was repressed by treatment with salicylic acid, suggesting a role for prostaglandin/cyclo-oxygenase pathways and/or NF-kappa B in the inductive response. Induction by 5-fluorouracil, in contrast, was more modest (two-fold at most) though it was consistently elevated over controls. JF - Cancer letters AU - Panozzo, J AU - Akan, E AU - Griffiths, T D AU - Woloschak, G E AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL 60439-4833, USA. Y1 - 1996/08/02/ PY - 1996 DA - 1996 Aug 02 SP - 217 EP - 223 VL - 105 IS - 2 SN - 0304-3835, 0304-3835 KW - Antibiotics, Antineoplastic KW - 0 KW - Antimetabolites, Antineoplastic KW - Doxorubicin KW - 80168379AG KW - Fluorouracil KW - U3P01618RT KW - Index Medicus KW - AIDS/HIV KW - HIV-1 -- genetics KW - Ultraviolet Rays KW - Genes, Reporter -- genetics KW - Transfection KW - HeLa Cells KW - Dose-Response Relationship, Drug KW - Humans KW - Genes, Reporter -- drug effects KW - Genes, Reporter -- radiation effects KW - HIV Long Terminal Repeat -- radiation effects KW - Doxorubicin -- pharmacology KW - Antibiotics, Antineoplastic -- pharmacology KW - Gene Expression Regulation, Viral -- drug effects KW - HIV Long Terminal Repeat -- drug effects KW - Fluorouracil -- pharmacology KW - Gene Expression Regulation, Viral -- radiation effects KW - Antimetabolites, Antineoplastic -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78204787?accountid=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+letters&rft.atitle=The+effects+of+5-fluorouracil+and+doxorubicin+on+expression+of+human+immunodeficiency+virus+type+1+long+terminal+repeat.&rft.au=Panozzo%2C+J%3BAkan%2C+E%3BGriffiths%2C+T+D%3BWoloschak%2C+G+E&rft.aulast=Panozzo&rft.aufirst=J&rft.date=1996-08-02&rft.volume=105&rft.issue=2&rft.spage=217&rft.isbn=&rft.btitle=&rft.title=Cancer+letters&rft.issn=03043835&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-09-03 N1 - Date created - 1996-09-03 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Attenuation of G2-phase cell cycle checkpoint control is associated with increased frequencies of unrejoined chromosome breaks in human tumor cells. AN - 78198901; 8693063 AB - To test the hypothesis that attenuation in G2-phase checkpoint control leads to elevated frequencies of unrejoined chromosome breaks in mitosis, the relationship between G2-phase cell cycle checkpoint control and unrejoined chromosome break frequencies after radiation exposure was examined in cells of 10 human tumor cell lines: 8 squamous cell carcinoma cell lines and 2 lymphoblastoid cell lines. Most of the delay in progression through the cell cycle seen in the first cell cycle after radiation exposure in these cell lines was due to blocks in G2 phase, and there were large cell line-dependent variations in the length of the G2-phase block. There was a highly significant inverse correlation between the length of G2-phase delay after radiation exposure and the frequency of induced unrejoined chromosome breaks seen as chromosome terminal deletions in mitosis. This observation supports the hypothesis that the signal for G2-phase delay in mammalian cells is an unrejoined chromosome break and that attenuation of G2-phase checkpoint control allows cells with unrejoined breaks to progress into mitosis. Attenuation in G2-phase checkpoint control was not associated with alterations in the frequency of induced chromosome rearrangements, suggesting that most chromosome rearrangements develop prior to G2 phase, and there was no significant relationship between the length of G2-phase delay and inherent radiation sensitivity, suggesting that unrejoined chromosome breaks are not the primary toxic lesion induced by radiation in mammalian cells. JF - Radiation research AU - Schwartz, J L AU - Cowan, J AU - Grdina, D J AU - Weichselbaum, R R AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Illinois 60439-4833, USA. Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 139 EP - 143 VL - 146 IS - 2 SN - 0033-7587, 0033-7587 KW - Index Medicus KW - Space life sciences KW - Tumor Cells, Cultured KW - Genes, p53 -- physiology KW - Humans KW - Chromosome Aberrations KW - Radiation Tolerance KW - G2 Phase KW - Neoplasms -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78198901?accountid=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=Attenuation+of+G2-phase+cell+cycle+checkpoint+control+is+associated+with+increased+frequencies+of+unrejoined+chromosome+breaks+in+human+tumor+cells.&rft.au=Schwartz%2C+J+L%3BCowan%2C+J%3BGrdina%2C+D+J%3BWeichselbaum%2C+R+R&rft.aulast=Schwartz&rft.aufirst=J&rft.date=1996-08-01&rft.volume=146&rft.issue=2&rft.spage=139&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 - 1996-08-29 N1 - Date created - 1996-08-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Polyvinyl alcohol-clay complexes formed by direct synthesis AN - 52804909; 1996-073482 AB - Synthetic hectorite clay minerals were hydrothermally crystallized with direct incorporation of a series of five water-soluble polyvinyl alcohols (PVA) of molecular weights from 9000-146,000. The molecular weight of PVA had little effect on the success of hydrothermal hectorite synthesis, d-spacing or the amount of polymer incorporated. The basal spacings range from 19.5 Aa to 20.8 Aa and the amount of polymer incorporated ranges from 20 wt.% to 23 wt.%. Incorporation of PVA within the clay interlayers, along with Li(I) ions to compensate the lattice charge, is indicated. Thermal gravimetric analysis and small angle neutron scattering were used to further examine the polymer-clay systems. Small PVA clay crystallites that are coated with excess PVA are indicated. Removal of the polymer does not alter the extended synthetic clay network, and the nitrogen BET surface area increases from 200 m (super 2) /g. JF - Clays and Clay Minerals AU - Carrado, Kathleen A AU - Thiyagarajan, P AU - Elder, Delwin L Y1 - 1996/08// PY - 1996 DA - August 1996 SP - 506 EP - 514 PB - Clay Minerals Society, Clarkson, NY VL - 44 IS - 4 SN - 0009-8604, 0009-8604 KW - silicates KW - experimental studies KW - complexes KW - complexing KW - clay mineralogy KW - hectorite KW - crystal growth KW - hydrothermal conditions KW - clay minerals KW - organic compounds KW - chemical properties KW - alcohols KW - crystallization KW - sheet silicates KW - synthesis KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52804909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Polyvinyl+alcohol-clay+complexes+formed+by+direct+synthesis&rft.au=Carrado%2C+Kathleen+A%3BThiyagarajan%2C+P%3BElder%2C+Delwin+L&rft.aulast=Carrado&rft.aufirst=Kathleen&rft.date=1996-08-01&rft.volume=44&rft.issue=4&rft.spage=506&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 1996-01-01 N1 - Number of references - 32 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - alcohols; chemical properties; clay mineralogy; clay minerals; complexes; complexing; crystal growth; crystallization; experimental studies; hectorite; hydrothermal conditions; organic compounds; sheet silicates; silicates; synthesis ER - TY - JOUR T1 - Uranium-series disequilibrium, sedimentation, diatom frustules, and paleoclimate change in Lake Baikal AN - 52806054; 1996-064251 AB - The large volume of water, approximately one-fifth of the total surface fresh water on the planet, contained in Lake Baikal in southeastern Siberia is distinguished by having a relatively high concentration of uranium (ca. 2 nM), and, together with the surface sediments, an unusually high (super 234) U/ (super 238) U alpha activity ratio of 1.95. About 80% of the input of uranium to the lake, with a (super 234) U/ (super 238) U ratio of 2.0, comes from the Selenga River. Profiles of uranium, as well as the extent of isotopic disequilibrium in a 9 m sediment core collected on Academic Ridge, generally show high values during interglacial periods corresponding to high diatom frustule numbers (DiFr) and biogenic silica (BSi) data that have been reported elsewhere. During glacial periods (low DiFr and BSi), uranium progeny ( (super 234) U and (super 230) Th) were in secular equilibrium with low concentrations of their parent (super 238) U. Radionuclide distributions were interpreted in terms of a quantitative model allowing for adsorption of riverine inputs of uranium onto two classes of sedimenting particles with differing (super 238) U/ (super 232) Th ratios and uranium progeny in secular equilibrium. If the (super 234) U/ (super 238) U activity ratio of adsorbed uranium has remained constant, mean sedimentation rates can be independently estimated as 3.6+ or -0.6 and 3.7+ or -0.9 cm.kyr (super -1) for the decay of (super 234) U and in-growth of (super 230) Th, respectively. These rates are consistent with a mean rate of 3.76 cm.kyr (super -1) , calculated by optimization of the correspondence between adsorbed (super 238) U and delta (super 18) O in dated oceanic sediments. The adsorbed uranium apparently tracks variable river flow during interglacials and is drastically reduced during periods of glaciation. Evidently, uranium has not been significantly redistributed within Baikal sediments over at least the past 250 kyr and is a unique, biologically non-essential, tracer for climate-sensitive processes, which provide their own internal geochronometers, potentially useful for ages up to 1 Myr BP. JF - Earth and Planetary Science Letters AU - Edgington, D N AU - Robbins, J A AU - Colman, S M AU - Orlandini, K A AU - Gustin, M P Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 29 EP - 42 PB - Elsevier, Amsterdam VL - 142 IS - 1-2 SN - 0012-821X, 0012-821X KW - Selenga River valley KW - isotopes KW - Russian Federation KW - algae KW - paleoclimatology KW - cores KW - uranium disequilibrium KW - Cenozoic KW - radioactive isotopes KW - diatoms KW - Commonwealth of Independent States KW - paleolimnology KW - dates KW - sedimentation rates KW - mass balance KW - glacial environment KW - sediments KW - bioclastic sedimentation KW - absolute age KW - Asia KW - geochemistry KW - lacustrine sedimentation KW - Plantae KW - Quaternary KW - interglacial environment KW - isotope ratios KW - sedimentation KW - rates KW - fluvial sedimentation KW - fluviolacustrine sedimentation KW - metals KW - uranium KW - U-238/U-234 KW - Lake Baikal KW - actinides KW - microfossils KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52806054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Uranium-series+disequilibrium%2C+sedimentation%2C+diatom+frustules%2C+and+paleoclimate+change+in+Lake+Baikal&rft.au=Edgington%2C+D+N%3BRobbins%2C+J+A%3BColman%2C+S+M%3BOrlandini%2C+K+A%3BGustin%2C+M+P&rft.aulast=Edgington&rft.aufirst=D&rft.date=1996-07-01&rft.volume=142&rft.issue=1-2&rft.spage=29&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2F0012-821X%2896%2900085-4 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 - 1996-01-01 N1 - Number of references - 29 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - absolute age; actinides; algae; Asia; bioclastic sedimentation; Cenozoic; Commonwealth of Independent States; cores; dates; diatoms; fluvial sedimentation; fluviolacustrine sedimentation; geochemistry; glacial environment; interglacial environment; isotope ratios; isotopes; lacustrine sedimentation; Lake Baikal; mass balance; metals; microfossils; paleoclimatology; paleolimnology; Plantae; Quaternary; radioactive isotopes; rates; Russian Federation; sedimentation; sedimentation rates; sediments; Selenga River valley; U-238/U-234; uranium; uranium disequilibrium DO - http://dx.doi.org/10.1016/0012-821X(96)00085-4 ER - TY - JOUR T1 - Equilibrated H chondrite composition AN - 52761802; 1997-010686 JF - Meteoritics & Planetary Science AU - Wolf, S F AU - Lipschutz, M E A2 - Sears, Derek W. G. Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 154 PB - Meteoritical Society, Fayetteville, AR VL - 31, Suppl. SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - stony meteorites KW - minor elements KW - ANOVA data KW - variance analysis KW - statistical analysis KW - H chondrites KW - equilibrium KW - meteorites KW - major elements KW - chondrites KW - geochemistry KW - chemical ratios KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52761802?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Equilibrated+H+chondrite+composition&rft.au=Wolf%2C+S+F%3BLipschutz%2C+M+E&rft.aulast=Wolf&rft.aufirst=S&rft.date=1996-07-01&rft.volume=31%2C+Suppl.&rft.issue=&rft.spage=154&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 59th annual Meteoritical Society meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 5 N1 - PubXState - AR N1 - Document feature - 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ANOVA data; chemical ratios; chondrites; equilibrium; geochemistry; H chondrites; major elements; meteorites; minor elements; ordinary chondrites; statistical analysis; stony meteorites; variance analysis ER - TY - RPRT T1 - Differential sensitivity of aerobic gram-positive and gram-negative microorganisms to 2,4,6-trinitrotoluene (TNT) leads to dissimilar growth and TNT transformation; results of soil and pure culture studies AN - 52630720; 1998-003284 AB - The effects of 2,4,6-trinitrotoluene (TNT) on indigenous soil populations and pure bacterial cultures were examined. The number of colony-forming units (CFU) appearing when TNT-contaminated soil was spread on 0.3% molasses plates decreased by 50% when the agar was amended with 67 micrograms TNT/mL, whereas a 99% reduction was observed when uncontaminated soil was plated. Furthermore, TNT-contaminated soil harbored a greater number of organisms able to grow on plates amended with greater than 10 micrograms TNT/mL. Pseudomonas aeruginosa, Pseudomonas corrugate, Pseudomonasfluorescens and Alcaligenes xylosoxidans made up the majority of the gram-negative isolates from TNT-contaminated soil. Gram-positive isolates from both soils demonstrated marked growth inhibition when greater than 8-16 micrograms TNT/mL was present in the culture media. Most pure cultures of known aerobic gram-negative organisms readily degraded TNT and evidenced net consumption of reduced metabolites. The results indicate that gram-negative organisms are most likely responsible for any TNT transformation in contaminated soil, due to their relative insensitivity to high TNT concentrations and their ability to transform TNT. JF - Differential sensitivity of aerobic gram-positive and gram-negative microorganisms to 2,4,6-trinitrotoluene (TNT) leads to dissimilar growth and TNT transformation; results of soil and pure culture studies AU - Fuller, M E AU - Manning, J F Y1 - 1996/07// PY - 1996 DA - July 1996 SP - 33 VL - ANL/ER/PP-90778 KW - thallophytes KW - soils KW - biodegradation KW - Plantae KW - degradation KW - pollution KW - trinitrotoluene KW - Pseudomonas KW - chemical waste KW - remediation KW - Pseudomonas fluorescens KW - organic compounds KW - explosives KW - bacteria KW - industrial waste KW - Alcaligenes xylosoxidans KW - Alcaligenes KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52630720?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=Fuller%2C+M+E%3BManning%2C+J+F&rft.aulast=Fuller&rft.aufirst=M&rft.date=1996-07-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Differential+sensitivity+of+aerobic+gram-positive+and+gram-negative+microorganisms+to+2%2C4%2C6-trinitrotoluene+%28TNT%29+leads+to+dissimilar+growth+and+TNT+transformation%3B+results+of+soil+and+pure+culture+studies&rft.title=Differential+sensitivity+of+aerobic+gram-positive+and+gram-negative+microorganisms+to+2%2C4%2C6-trinitrotoluene+%28TNT%29+leads+to+dissimilar+growth+and+TNT+transformation%3B+results+of+soil+and+pure+culture+studies&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE97002664NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - The relationship between fumarole gas composition and eruptive activity at Galeras Volcano, Colombia AN - 52837907; 1996-042464 AB - Forecasting volcanic eruptions is critical to the mitigation of hazards for the millions of people living dangerously close to active volcanoes. Volcanic gases collected over five years from Galeras Volcano, Colombia, and analyzed for chemical and isotopic composition show the effects of long-term degassing of the magma body and a gradual decline in sulfur content of the gases. In Contrast, short-term (weeks), sharp variations are the precursors to explosive eruptions. Selective absorption of magmatic SO (sub 2) and HCl due to interaction with low-temperature geothermal waters allows the gas emissions to become dominated by CO (sub 2) . Absorption appears to precede an eruption because magmatic volatiles are slowed or refined by a sealing carapace, reducing the total flux of volatiles and allowing the hydrothermal volatiles to dominate gas emissions. Temporal changes in gas compositions were correlated with eruptive activity and provide new evidence bearing on the mechanism of this type of "pneumatic" explosive eruptions. JF - Geology (Boulder) AU - Fischer, Tobias P AU - Arehart, Greg B AU - Sturchio, Neil C AU - Williams, Stanley N Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 531 EP - 534 PB - Geological Society of America (GSA), Boulder, CO VL - 24 IS - 6 SN - 0091-7613, 0091-7613 KW - precursors KW - geologic hazards KW - fumaroles KW - Colombia KW - Galeras KW - explosive eruptions KW - carbon dioxide KW - hydrofluoric acid KW - inorganic acids KW - degassing KW - sulfur dioxide KW - Andes KW - Narino Colombia KW - hydrogen sulfide KW - volcanology KW - thermal waters KW - gases KW - volatiles KW - South America KW - volcanic risk KW - magmas KW - eruptions KW - hydrochloric acid KW - volcanoes KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52837907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=The+relationship+between+fumarole+gas+composition+and+eruptive+activity+at+Galeras+Volcano%2C+Colombia&rft.au=Fischer%2C+Tobias+P%3BArehart%2C+Greg+B%3BSturchio%2C+Neil+C%3BWilliams%2C+Stanley+N&rft.aulast=Fischer&rft.aufirst=Tobias&rft.date=1996-06-01&rft.volume=24&rft.issue=6&rft.spage=531&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2F0091-7613%281996%290242.3.CO%3B2 L2 - http://www.gsajournals.org/ 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 - 1996-01-01 N1 - Number of references - 18 N1 - PubXState - CO N1 - Document feature - illus. incl. sect., sketch map N1 - SuppNotes - With GSA Data Repository Item 9626 N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Andes; carbon dioxide; Colombia; degassing; eruptions; explosive eruptions; fumaroles; Galeras; gases; geologic hazards; hydrochloric acid; hydrofluoric acid; hydrogen sulfide; inorganic acids; magmas; Narino Colombia; precursors; South America; sulfur dioxide; thermal waters; volatiles; volcanic risk; volcanoes; volcanology DO - http://dx.doi.org/10.1130/0091-7613(1996)024<0531:TRBFGC>2.3.CO;2 ER - TY - RPRT T1 - Preliminary technical and legal evaluation of disposing of nonhazardous oil field waste into salt caverns AN - 52658356; 1998-003137 AB - The purpose of this report is to evaluate the feasibility, suitability, and legality of disposing of nonhazardous oil and gas exploration, development, and production wastes in salt caverns. Chapter 2 provides background information on: types and locations of US subsurface salt deposits; basic solution mining techniques used to create caverns; and ways in which salt caverns are used. Later chapters provide discussion of: federal and state regulatory requirements concerning disposal of oil field waste, including which wastes are considered eligible for cavern disposal; waste streams that are considered to be oil field waste; and an evaluation of technical issues concerning the suitability of using salt caverns for disposing of oil field waste. Separate chapters present: types of oil field wastes suitable for cavern disposal; cavern design and location; disposal operations; and closure and remediation. JF - Preliminary technical and legal evaluation of disposing of nonhazardous oil field waste into salt caverns AU - Veil, J AU - Elcock, D AU - Raivel, M AU - Caudle, D AU - Ayers, R C Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 62 VL - ANL/EA/RP-87713 KW - soils KW - sand KW - salt domes KW - clastic sediments KW - waste water KW - pollutants KW - pollution KW - chemical waste KW - petroleum products KW - preventive measures KW - feasibility studies KW - waste management KW - sediments KW - industrial waste KW - waste disposal KW - mobility KW - construction KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52658356?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=Veil%2C+J%3BElcock%2C+D%3BRaivel%2C+M%3BCaudle%2C+D%3BAyers%2C+R+C&rft.aulast=Veil&rft.aufirst=J&rft.date=1996-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Preliminary+technical+and+legal+evaluation+of+disposing+of+nonhazardous+oil+field+waste+into+salt+caverns&rft.title=Preliminary+technical+and+legal+evaluation+of+disposing+of+nonhazardous+oil+field+waste+into+salt+caverns&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96013677NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Optimized groundwater extraction system for the toxic burning pits area of J-Field, Aberdeen Proving Ground, Maryland AN - 52636150; 1998-003662 AB - Testing and disposal of chemical warfare agents, munitions, and industrial chemicals at the J-Field area of the Aberdeen Proving Ground (APG) have resulted in contamination of soil and groundwater. The discharge of contaminated groundwater to on-site marshes and adjacent estuaries poses a potential risk to ecological receptors. The Toxic Burning Pits (TBP) area is of special concern because of its disposal history. This report describes a groundwater modeling study conducted at J-Field that focused on the TBP area. The goal of this modeling effort was optimization of the groundwater extraction system at the TBP area by applying linear programming techniques. Initially, the flow field in the J-Field vicinity was characterized with a three-dimensional model that uses existing data and several numerical techniques. A user-specified border was set near the marsh and used as a constraint boundary in two modeled remediation scenarios: containment of the groundwater and containment of groundwater with an impermeable cap installed over the TBP area. In both cases, the objective was to extract the minimum amount of water necessary while satisfying the constraints. The smallest number of wells necessary was then determined for each case. This optimization approach provided two benefits: cost savings, in that the water to be treated and the well installation costs were minimized, and minimization of remediation impacts on the ecology of the marsh. JF - Optimized groundwater extraction system for the toxic burning pits area of J-Field, Aberdeen Proving Ground, Maryland AU - Quinn, J J AU - Johnson, R L AU - Patton, T L AU - Martino, L E Y1 - 1996/06// PY - 1996 DA - June 1996 SP - 90 VL - ANL/EAD/TM-60 KW - United States KW - aquifer vulnerability KW - Chesapeake Bay KW - degradation KW - Aberdeen Proving Ground KW - chemical waste KW - fluid dynamics KW - ground water KW - military geology KW - decontamination KW - Harford County Maryland KW - Maryland KW - Atlantic Coastal Plain KW - toxic materials KW - three-dimensional models KW - pollutants KW - pollution KW - optimization KW - aquifers KW - organic compounds KW - industrial waste KW - testing KW - hydraulic conductivity KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52636150?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=Quinn%2C+J+J%3BJohnson%2C+R+L%3BPatton%2C+T+L%3BMartino%2C+L+E&rft.aulast=Quinn&rft.aufirst=J&rft.date=1996-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Optimized+groundwater+extraction+system+for+the+toxic+burning+pits+area+of+J-Field%2C+Aberdeen+Proving+Ground%2C+Maryland&rft.title=Optimized+groundwater+extraction+system+for+the+toxic+burning+pits+area+of+J-Field%2C+Aberdeen+Proving+Ground%2C+Maryland&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96013488NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Soil aggregate formation and the accrual of particulate and mineral-associated organic matter AN - 52783598; 1996-074652 JF - Soil Biology & Biochemistry AU - Jastrow, J D Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 665 EP - 676 PB - Pergamon, Oxford VL - 28 IS - 4-5 SN - 0038-0717, 0038-0717 KW - soils KW - organic materials KW - degradation KW - micromorphology KW - physicochemical properties KW - soil aggregates KW - porosity KW - organic compounds KW - carbon KW - parent materials KW - particulate materials KW - organic carbon KW - chemical composition KW - soil management KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52783598?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+%26+Biochemistry&rft.atitle=Soil+aggregate+formation+and+the+accrual+of+particulate+and+mineral-associated+organic+matter&rft.au=Jastrow%2C+J+D&rft.aulast=Jastrow&rft.aufirst=J&rft.date=1996-05-01&rft.volume=28&rft.issue=4-5&rft.spage=665&rft.isbn=&rft.btitle=&rft.title=Soil+Biology+%26+Biochemistry&rft.issn=00380717&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00380717 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 49 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon; chemical composition; chemical fractionation; degradation; micromorphology; organic carbon; organic compounds; organic materials; parent materials; particulate materials; physicochemical properties; porosity; soil aggregates; soil management; soils ER - TY - RPRT T1 - Derivation of guidelines for uranium residual radioactive material in soil at the Colonie Site, Colonie, New York AN - 52637474; 1998-003626 AB - Residual radioactive material guidelines for uranium in soil were derived for the Colonie site located in Colonie, New York. The site became contaminated with radioactive material as a result of operations conducted by National Lead (NL) Industries from 1958 to 1984; these activities included brass foundry operations, electroplating of metal products, machining of various components using depleted uranium, and limited work with small amounts of enriched uranium and thorium. Residual radioactive material guidelines for individual radionuclides and total uranium were derived on the basis of the requirement that the 50-year committed effective dose equivalent to a hypothetical individual who lives or works in the immediate vicinity of the site should not exceed a dose of 30 mrem/yr following remedial action for the current use and likely future use scenarios or a dose of 100 mrem/yr for less likely future use scenarios. The DOE residual radioactive material guideline computer code, RESRAD, was used in this evaluation; RESRAD implements the methodology described in the DOE manual for establishing residual radioactive material guidelines. JF - Derivation of guidelines for uranium residual radioactive material in soil at the Colonie Site, Colonie, New York AU - Dunning, D Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 31 VL - ANL/EAD/TM-57 KW - United States KW - soils KW - concentration KW - isotopes KW - pollutants KW - waste disposal sites KW - pollution KW - Albany County New York KW - remediation KW - radioactive waste KW - New York KW - Colonie New York KW - radioactive isotopes KW - metals KW - U-234 KW - thorium KW - uranium KW - waste disposal KW - U-238 KW - actinides KW - land use KW - U-235 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52637474?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=Dunning%2C+D&rft.aulast=Dunning&rft.aufirst=D&rft.date=1996-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Derivation+of+guidelines+for+uranium+residual+radioactive+material+in+soil+at+the+Colonie+Site%2C+Colonie%2C+New+York&rft.title=Derivation+of+guidelines+for+uranium+residual+radioactive+material+in+soil+at+the+Colonie+Site%2C+Colonie%2C+New+York&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96012767NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Estimation of uranium and cobalt-60 distribution coefficients and uranium-235 enrichment at the Combustion Engineering Company site in Windsor, Connecticut AN - 52169085; 2002-000026 AB - Site-specific distribution coefficients for uranium isotopes and cobalt-60 (Co-60) and the fraction of uranium-235 (U-235) enrichment by mass were estimated for environmental samples collected from the Combustion Engineering Company site in Windsor, CT. In this study, 16 samples were collected from the Combustion Engineering site, including 8 soil, 4 sediment, 3 water, and 1 water plus sludge sample. These samples were analyzed for isotopic uranium by alpha spectrometry and for Co-60 by gamma spectrometry. The site-specific distribution coefficient for each isotope was estimated as the ratio of extractable radionuclide activity in the solid phase to the activity in the contact solution following a 19-day equilibration. JF - Estimation of uranium and cobalt-60 distribution coefficients and uranium-235 enrichment at the Combustion Engineering Company site in Windsor, Connecticut AU - Wang, Y AU - Orlandini, K A AU - Yu, C Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 23 VL - ANL/EAD/TM-59 KW - United States KW - soils KW - Co-60 KW - cobalt KW - Windsor Connecticut KW - isotopes KW - pollutants KW - enrichment KW - pollution KW - Connecticut KW - remediation KW - spatial distribution KW - radioactive isotopes KW - decontamination KW - metals KW - nuclear facilities KW - Hartford County Connecticut KW - uranium KW - actinides KW - U-235 KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52169085?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=Wang%2C+Y%3BOrlandini%2C+K+A%3BYu%2C+C&rft.aulast=Wang&rft.aufirst=Y&rft.date=1996-05-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Estimation+of+uranium+and+cobalt-60+distribution+coefficients+and+uranium-235+enrichment+at+the+Combustion+Engineering+Company+site+in+Windsor%2C+Connecticut&rft.title=Estimation+of+uranium+and+cobalt-60+distribution+coefficients+and+uranium-235+enrichment+at+the+Combustion+Engineering+Company+site+in+Windsor%2C+Connecticut&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96012973NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Isolation and characterization of a sulfate-reducing bacterium that removed TNT (2,4,6-trinitrotoluene) under sulfate- and nitrate-reducing conditions AN - 16437286; 4336184 AB - A sulfate-reducing bacterium isolated from a creek sediment and capable of metabolizing TNT (2,4,6-trinitrotoluene) using sulfate and nitrate as electron acceptors was tentatively characterized. as Desulfovibrio desulfuricans strain A. The isolate was unable to use TNT as the sole source of carbon. TNT degradation was accomplished by a co-metabolic process using pyruvate as the main substrate. Two different metabolic steps were employed by this isolate under different electron-accepting conditions. Under sulfate-reducing conditions, TNT was reduced to 4-amino-2,6-dinitrotoluene, 2-amino-4,6-dinitrotoluene and 2,4-diamino-6-nitrotoluene. In contrast, under nitrate-reducing conditions, these amino compounds were not produced, instead, butyric acid was identified as the major metabolite of TNT metabolism. This organism also used a wide variety of other carbon sources, including ethanol, lactate, succinate, formate and malate. The isolate contained the electron-carrier desulfoviridin and used sulfate, nitrate, and thiosulfate as electron acceptors. The isolate had an optimal temperature of 25 degree C and an optimal pH of 6.8 and used ammonium chloride, nitrate and glutamate as nitrogen sources. The characteristic features of the sulfate-reducing bacterium closely resembled those of Desulfovibrio desulfuricans. JF - Bioresource Technology AU - Costa, V AU - Boopathy, R AU - Manning, J AD - Environmental Research Division, Building 203, Argonne National Laboratory, Argonne, IL 60439, USA Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 273 EP - 278 VL - 56 IS - 2-3 SN - 0960-8524, 0960-8524 KW - Water Resources Abstracts KW - SW 3040:Wastewater treatment processes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/16437286?accountid=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=Bioresource+Technology&rft.atitle=Isolation+and+characterization+of+a+sulfate-reducing+bacterium+that+removed+TNT+%282%2C4%2C6-trinitrotoluene%29+under+sulfate-+and+nitrate-reducing+conditions&rft.au=Costa%2C+V%3BBoopathy%2C+R%3BManning%2C+J&rft.aulast=Costa&rft.aufirst=V&rft.date=1996-05-01&rft.volume=56&rft.issue=2-3&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Bioresource+Technology&rft.issn=09608524&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 - Palaeontology and zooarchaeology of Mezmaiskaya Cave (northwestern Caucasus, Russia) AN - 1553086406; 2014-060674 JF - Journal of Archaeological Science AU - Baryshnikov, Gennady AU - Hoffecker, John F AU - Burgess, Robin L Y1 - 1996/05// PY - 1996 DA - May 1996 SP - 313 EP - 335 PB - Elsevier, London VL - 23 IS - 3 SN - 0305-4403, 0305-4403 KW - anthropology KW - isotopes KW - middle Paleolithic KW - caves KW - Europe KW - biogeography KW - paleoecology KW - upper Pleistocene KW - Pisces KW - Cenozoic KW - radioactive isotopes KW - Commonwealth of Independent States KW - geochronology KW - carbon KW - taphonomy KW - Caucasus KW - Chordata KW - archaeology KW - Quaternary KW - assemblages KW - predation KW - human activity KW - Mammalia KW - Stone Age KW - faunal studies KW - weathering KW - Reptilia KW - Aves KW - Amphibia KW - Pleistocene KW - C-14 KW - Vertebrata KW - Paleolithic KW - Mousterian KW - Tetrapoda KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553086406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+Archaeological+Science&rft.atitle=Palaeontology+and+zooarchaeology+of+Mezmaiskaya+Cave+%28northwestern+Caucasus%2C+Russia%29&rft.au=Baryshnikov%2C+Gennady%3BHoffecker%2C+John+F%3BBurgess%2C+Robin+L&rft.aulast=Baryshnikov&rft.aufirst=Gennady&rft.date=1996-05-01&rft.volume=23&rft.issue=3&rft.spage=313&rft.isbn=&rft.btitle=&rft.title=Journal+of+Archaeological+Science&rft.issn=03054403&rft_id=info:doi/10.1006%2Fjasc.1996.0030 L2 - http://www.sciencedirect.com/science/journal/03054403 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 67 N1 - Document feature - illus. incl. charts, 19 tables, sketch map N1 - Last updated - 2014-08-14 N1 - CODEN - JASCDU N1 - SubjectsTermNotLitGenreText - Amphibia; anthropology; archaeology; assemblages; Aves; biogeography; C-14; carbon; Caucasus; caves; Cenozoic; Chordata; Commonwealth of Independent States; Europe; faunal studies; geochronology; human activity; isotopes; Mammalia; middle Paleolithic; Mousterian; paleoecology; Paleolithic; Pisces; Pleistocene; predation; Quaternary; radioactive isotopes; Reptilia; Stone Age; taphonomy; Tetrapoda; upper Pleistocene; Vertebrata; weathering DO - http://dx.doi.org/10.1006/jasc.1996.0030 ER - TY - JOUR T1 - Geochemical characteristics of the Yufuin outflow plume, Beppu hydrothermal system, Japan AN - 52822619; 1996-051653 AB - Thermal water at Yufuin (Kyushu Island, Japan) is tapped through about 820 shallow wells and used mainly for hot-spring bathing purposes. Chemical and isotopic data for fluids from wells and fumaroles in Yufuin and Beppu indicate that the thermal activity at Yufuin represents a dilute westward-flowing hydrothermal outflow plume from the Beppu hydrothermal system. Two other (eastward-flowing) outflow plumes have long been recognized at Beppu, but the Yufuin outflow plume is first recognized here. The Yufuin outflow plume is apparently a mixture of two end-member fluids: (1) deep high-temperature (250-300 degrees C) fluid from the Beppu system having high chloride concentration (1400-1600 mg/L) and a delta (super 18) O value near -6.0 per thousand and (2) meteoric water having low chloride concentration (less than or equal to 7 mg/L) and a delta (super 18) O value near -9.2 per thousand. A permeable conduit for the vertical and lateral transport of deep fluid from the Beppu system is provided by the Yufuin Fault zone, which extends westward from the southern flank of Mt. Tsurumi volcano to the town of Yufuin. Stable isotope ratios and chloride concentrations for shallow groundwaters near the eastern end of the fault at an elevation near 700 m are consistent with those required for the low-chloride meteoric end-member of the Yufuin thermal waters. Recharge of this meteoric water, as well as mixing with the Beppu deep fluid may occur along the Yufuin Fault. Enthalpy-chloride relations indicate additional conductive heating of the Yufuin waters in the amount of 350-500 kJ/kg beyond that which can be accounted for by mixing between Beppu deep fluid and meteoric water. This could be a result of conductive heating with convection to a depth of 1 nearly equal 2 km. Estimates of the magnitude of the heat source for the Beppu hydrothermal system should take into account the heat being discharged at Yufuin. JF - Geothermics AU - Sturchio, N C AU - Ohsawa, S AU - Sano, Y AU - Arehart, G AU - Kitaoka, K AU - Yusa, Y Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 215 EP - 230 PB - Pergamon Press, Oxford - New York VL - 25 IS - 2 SN - 0375-6505, 0375-6505 KW - wells KW - Yufuin Japan KW - plumes KW - Far East KW - oxygen KW - solutions KW - isotopes KW - fumaroles KW - halogens KW - stable isotopes KW - temperature KW - chloride ion KW - mixing KW - Asia KW - geochemistry KW - chlorine KW - meteoric water KW - Oita Japan KW - Kyushu KW - isotope ratios KW - O-18/O-16 KW - Beppu Japan KW - hydrochemistry KW - thermal waters KW - hydrothermal conditions KW - geothermal fields KW - Japan KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52822619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geothermics&rft.atitle=Geochemical+characteristics+of+the+Yufuin+outflow+plume%2C+Beppu+hydrothermal+system%2C+Japan&rft.au=Sturchio%2C+N+C%3BOhsawa%2C+S%3BSano%2C+Y%3BArehart%2C+G%3BKitaoka%2C+K%3BYusa%2C+Y&rft.aulast=Sturchio&rft.aufirst=N&rft.date=1996-04-01&rft.volume=25&rft.issue=2&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Geothermics&rft.issn=03756505&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/03756505 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand N1 - Date revised - 1996-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - GTMCAT N1 - SubjectsTermNotLitGenreText - Asia; Beppu Japan; chloride ion; chlorine; Far East; fumaroles; geochemistry; geothermal fields; halogens; hydrochemistry; hydrothermal conditions; isotope ratios; isotopes; Japan; Kyushu; meteoric water; mixing; O-18/O-16; Oita Japan; oxygen; plumes; solutions; stable isotopes; temperature; thermal waters; wells; Yufuin Japan ER - TY - JOUR T1 - Determining the atomic structure of submonolayer metal adsorbates at mineral-water interfaces AN - 52689840; 1997-055101 JF - Eos, Transactions, American Geophysical Union AU - Sturchio, N C AU - Lyman, P AU - Cheng, L AU - Bedzyk, M AU - Chiarello, R P AU - Sorensen, L AU - Geissbuhler, M P AU - Yee, D AU - Anonymous Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 94 PB - American Geophysical Union, Washington, DC VL - 77 IS - 17, Suppl. SN - 0096-3941, 0096-3941 KW - soils KW - hazardous waste KW - experimental studies KW - pollutants KW - pollution KW - mineral-water interface KW - adsorption KW - ground water KW - calcite KW - X-ray data KW - chemical reactions KW - transport KW - metals KW - geochemistry KW - carbonates KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52689840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Determining+the+atomic+structure+of+submonolayer+metal+adsorbates+at+mineral-water+interfaces&rft.au=Sturchio%2C+N+C%3BLyman%2C+P%3BCheng%2C+L%3BBedzyk%2C+M%3BChiarello%2C+R+P%3BSorensen%2C+L%3BGeissbuhler%2C+M+P%3BYee%2C+D%3BAnonymous&rft.aulast=Sturchio&rft.aufirst=N&rft.date=1996-04-01&rft.volume=77&rft.issue=17%2C+Suppl.&rft.spage=94&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 1996 spring meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - EOSTAJ N1 - SubjectsTermNotLitGenreText - adsorption; calcite; carbonates; chemical reactions; experimental studies; geochemistry; ground water; hazardous waste; metals; mineral-water interface; pollutants; pollution; soils; transport; X-ray data ER - TY - JOUR T1 - Environmental geophysics and sequential air photo study at Sunfish Lake Twin Cities Army Ammunition Plant AN - 50900241; 2002-027292 AB - Geophysical and air photo studies at the Twin Cities Army Ammunition Plant (TCAAP), Minnesota, were conducted to establish a chronology of dumping and waste disposal. This study was undertaken to aid in the assessment of the amount of remediation needed to reclaim a wetland area. An integrated analysis of electromagnetic, magnetic and ground-penetrating RADAR (GPR) measurements over a 25-acre site, provided the information necessary to define waste disposal events. These events are observed on a sequence of aerial photos taken between 1940 and 1993. The former southwestern embayment of the lake, filled in during the original construction of the base, has been clearly defined. Two burn cages and their surrounding debris have been delineated. The areal extent of another waste site has been defined along the northern shoreline. Depth estimates determined from EM-61 analysis, and depths to original lake bottom, derived from GPR, have yielded volumetric estimates of the amount of material that would need removal if excavation is required. Magnetic and electromagnetic data have pin-pointed the locations of mounds, observed from historical air photos. Except for these areas along the northwestern shore, there is no evidence of waste disposal along the shoreline or within the present-day lake margins. The ability to date the anomalous regions is significant, in that different production demands upon TCAAP, during the time periods of WWII, The Korean War, and The Vietnam Conflict, have resulted in different types of waste. The ability to categorize areas with distinct time periods of operation and waste disposal can greatly aid the environmental cleanup effort with regard to the type of contaminants that might be expected at these poorly documented disposal sites. JF - Proceedings of SAGEEP AU - Padar, C A AU - McGinnis, L D AU - Thompson, M D AU - Anderson, A W AU - Benson, M A AU - Stefanov, J E AU - Daudt, D R AU - Miller, S F AU - Knight, D E AU - Bell, Ronald S AU - Cramer, Mark H Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 1217 EP - 1226 PB - Environmental and Engineering Geophysical Society, Wheat Ridge, CO VL - 1996 KW - United States KW - Minnesota KW - ground-penetrating radar KW - reclamation KW - geophysical methods KW - radar methods KW - magnetic methods KW - Twin Cities Army Ammunition Plant KW - environmental analysis KW - remediation KW - Sunfish Lake KW - chronology KW - wetlands KW - Ramsey County Minnesota KW - aerial photography KW - waste disposal KW - military facilities KW - remote sensing KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50900241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Environmental+geophysics+and+sequential+air+photo+study+at+Sunfish+Lake+Twin+Cities+Army+Ammunition+Plant&rft.au=Padar%2C+C+A%3BMcGinnis%2C+L+D%3BThompson%2C+M+D%3BAnderson%2C+A+W%3BBenson%2C+M+A%3BStefanov%2C+J+E%3BDaudt%2C+D+R%3BMiller%2C+S+F%3BKnight%2C+D+E%3BBell%2C+Ronald+S%3BCramer%2C+Mark+H&rft.aulast=Padar&rft.aufirst=C&rft.date=1996-04-01&rft.volume=1996&rft.issue=&rft.spage=1217&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 - 2002-01-01 N1 - Number of references - 4 N1 - PubXState - CO N1 - Document feature - illus. incl. geol. sketch maps N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerial photography; chronology; environmental analysis; geophysical methods; ground-penetrating radar; magnetic methods; military facilities; Minnesota; radar methods; Ramsey County Minnesota; reclamation; remediation; remote sensing; Sunfish Lake; Twin Cities Army Ammunition Plant; United States; waste disposal; wetlands ER - TY - RPRT T1 - Humic and fluvic acids and organic colloidal materials in the environment AN - 50300779; 2002-000003 AB - Humic substances are ubiquitous in the environment, occurring in all soils, waters, and sediments of the ecosphere. Humic substances arise from the decomposition of plant and animal tissues yet are more stable than their precursors. Their size, molecular weight, elemental composition, structure, and the number and position of functional groups vary, depending on the origin and age of the material. Humic and fulvic substances have been studied extensively for more than 200 years; however, much remains unknown regarding their structure and properties. Humic substances are those organic compounds found in the environment that cannot be classified as any other chemical class of compounds. They are traditionally defined according to their solubilities. Fulvic acids are those organic materials that are soluble in water at all pH values. Humic acids are those materials that are insoluble at acidic pH values (pH<2) but are soluble at higher pH values. Humin is the fraction of natural organic materials that is insoluble in water at all pH values. These definitions reflect the traditional methods for separating the different fractions from the original mixture. The humic content of soils varies from 0 to almost 10%. In surface waters, the humic content, expressed as dissolved organic carbon (DOC), varies from 0.1 to 50 ppm in dark-water swamps. In ocean waters, the DOC varies from 0.5 to 1.2 ppm at the surface, and the DOC in samples from deep groundwaters varies from 0.1 to 10 ppm. In addition, about 10% of the DOC in surface waters is found in suspended matter, either as organic or organically coated inorganic particulates. Humic materials function as surfactants, with the ability to bind both hydrophobic and hydrophyllic materials, making numic and fluvic materials effective agents in transporting both organic and inorganic contaminants in the environment. JF - Humic and fluvic acids and organic colloidal materials in the environment AU - Gaffney, J S AU - Marley, N A AU - Clark, S B Y1 - 1996/04// PY - 1996 DA - April 1996 SP - 27 VL - ANL/ER/CP-89942 | CONF-9608110-1 KW - soils KW - colloidal materials KW - pollutants KW - physicochemical properties KW - surface water KW - pollution KW - biogeography KW - humic acids KW - ground water KW - aquifers KW - organic compounds KW - organic acids KW - humic substances KW - environment KW - transport KW - ecology KW - fulvic acids KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50300779?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=Gaffney%2C+J+S%3BMarley%2C+N+A%3BClark%2C+S+B&rft.aulast=Gaffney&rft.aufirst=J&rft.date=1996-04-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Humic+and+fluvic+acids+and+organic+colloidal+materials+in+the+environment&rft.title=Humic+and+fluvic+acids+and+organic+colloidal+materials+in+the+environment&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 2002-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96012697NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 210th American Chemical Society national meeting Chicago, IL, Aug. 20-24, 1996; Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Microbial transport through heterogeneous porous media; random walk, fractal, and percolation approaches AN - 52757638; 1997-018493 JF - Ecological Modelling AU - Li, Bai-Lian AU - Loehle, Craig AU - Malon, David Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 285 EP - 302 PB - Elsevier, Amsterdam VL - 85 IS - 2-3 SN - 0304-3800, 0304-3800 KW - soils KW - fractured materials KW - three-dimensional models KW - spatial data KW - variance analysis KW - statistical analysis KW - porous materials KW - mathematical models KW - geostatistics KW - ecosystems KW - transport KW - stochastic processes KW - infiltration KW - probability KW - fractals KW - permeability KW - particles KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52757638?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Microbial+transport+through+heterogeneous+porous+media%3B+random+walk%2C+fractal%2C+and+percolation+approaches&rft.au=Li%2C+Bai-Lian%3BLoehle%2C+Craig%3BMalon%2C+David&rft.aulast=Li&rft.aufirst=Bai-Lian&rft.date=1996-03-01&rft.volume=85&rft.issue=2-3&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 85 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ecosystems; fractals; fractured materials; geostatistics; infiltration; mathematical models; microorganisms; particles; permeability; porous materials; probability; soils; spatial data; statistical analysis; stochastic processes; three-dimensional models; transport; variance analysis ER - TY - JOUR T1 - Statistical properties of ecological and geologic fractals AN - 52755334; 1997-018492 JF - Ecological Modelling AU - Loehle, Craig AU - Li, Bai-Lian Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 271 EP - 284 PB - Elsevier, Amsterdam VL - 85 IS - 2-3 SN - 0304-3800, 0304-3800 KW - three-dimensional models KW - spatial data KW - sampling KW - variance analysis KW - statistical analysis KW - mathematical models KW - geostatistics KW - ecosystems KW - fractals KW - permeability KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52755334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Statistical+properties+of+ecological+and+geologic+fractals&rft.au=Loehle%2C+Craig%3BLi%2C+Bai-Lian&rft.aulast=Loehle&rft.aufirst=Craig&rft.date=1996-03-01&rft.volume=85&rft.issue=2-3&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 75 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ecosystems; fractals; geostatistics; mathematical models; permeability; sampling; spatial data; statistical analysis; three-dimensional models; variance analysis ER - TY - RPRT T1 - RCRA delisting of agent-decontaminated waste and remediation waste at Dugway Proving Ground; a program update AN - 52627340; 1998-003242 AB - In July 1988, the state of Utah issued regulations that declared residues resulting from the demilitarization, treatment, and testing of military chemical agents to be hazardous wastes. These residues were designated as corrosive, reactive, toxic, and acute hazardous. The RCRA regulations (40 CFR 260-280), the Utah Administrative Code (R-315), and other state hazardous waste programs list specific wastes as hazardous but allow generators to petition the regulator to "delist" if it can be demonstrated that such wastes are not hazardous. The initial focus is on delisting agent-decontaminated residues and soil with a history of contamination at the U.S. Army Dugway Proving Ground (DPG), Utah. The purpose of this paper is to review the DPG delisting program and discuss overall progress. Emphasis is placed on progress with regard to analytical methods that will be used to demonstrate that the target residues do not contain hazardous amounts of chemical agent. JF - RCRA delisting of agent-decontaminated waste and remediation waste at Dugway Proving Ground; a program update AU - Kimmel, T A AU - Anderson, A W AU - O'Neill, H J Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 7 VL - ANL/EA/CP-88052 | CONF-9603132-1 KW - United States KW - soils KW - hazardous waste KW - Resource Conservation and Recovery Act KW - toxic materials KW - Superfund KW - pollutants KW - regulations KW - pollution KW - chemical waste KW - remediation KW - chlorinated compounds KW - decontamination KW - classification KW - industrial waste KW - Utah KW - waste disposal KW - Dugway Proving Ground KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52627340?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=Kimmel%2C+T+A%3BAnderson%2C+A+W%3BO%27Neill%2C+H+J&rft.aulast=Kimmel&rft.aufirst=T&rft.date=1996-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=RCRA+delisting+of+agent-decontaminated+waste+and+remediation+waste+at+Dugway+Proving+Ground%3B+a+program+update&rft.title=RCRA+delisting+of+agent-decontaminated+waste+and+remediation+waste+at+Dugway+Proving+Ground%3B+a+program+update&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96006738NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 22nd American Defense Preparedness Association (ADPA) environmental symposium and exhibition, Orlando, FL, Mar. 18-21, 1996; Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Separation and molecular characterization of the acidic constituents in a California biodegraded crude AN - 52524839; 1999-008683 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Ellis, Leroy AU - Haas, George W AU - Winans, Randall E A2 - Oteyza, Julian Y1 - 1996/03// PY - 1996 DA - March 1996 PB - American Chemical Society, Washington, DC VL - 211 SN - 0065-7727, 0065-7727 KW - United States KW - high-resolution methods KW - biodegradation KW - gas chromatograms KW - mass spectra KW - biomarkers KW - California KW - organic compounds KW - organic acids KW - identification KW - crude oil KW - spectra KW - chemical composition KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52524839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Separation+and+molecular+characterization+of+the+acidic+constituents+in+a+California+biodegraded+crude&rft.au=Ellis%2C+Leroy%3BHaas%2C+George+W%3BWinans%2C+Randall+E&rft.aulast=Ellis&rft.aufirst=Leroy&rft.date=1996-03-01&rft.volume=211&rft.issue=&rft.spage=GEOC+008&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 211th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - biodegradation; biomarkers; California; chemical composition; crude oil; gas chromatograms; geochemistry; high-resolution methods; identification; mass spectra; organic acids; organic compounds; spectra; United States ER - TY - JOUR T1 - Bacterial sources for phenylalkane hydrocarbons AN - 52523869; 1999-008722 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Ellis, Leroy AU - Winans, Randall E AU - Langworthy, Thomas A2 - Oteyza, Julian Y1 - 1996/03// PY - 1996 DA - March 1996 PB - American Chemical Society, Washington, DC VL - 211 SN - 0065-7727, 0065-7727 KW - thermophilic taxa KW - biochemical sedimentation KW - biochemistry KW - sedimentation KW - aliphatic hydrocarbons KW - alkanes KW - biomarkers KW - organic compounds KW - biogenic processes KW - bacteria KW - sediments KW - hydrocarbons KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52523869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Bacterial+sources+for+phenylalkane+hydrocarbons&rft.au=Ellis%2C+Leroy%3BWinans%2C+Randall+E%3BLangworthy%2C+Thomas&rft.aulast=Ellis&rft.aufirst=Leroy&rft.date=1996-03-01&rft.volume=211&rft.issue=&rft.spage=GEOC+046&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 211th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; bacteria; biochemical sedimentation; biochemistry; biogenic processes; biomarkers; geochemistry; hydrocarbons; organic compounds; sedimentation; sediments; thermophilic taxa ER - TY - JOUR T1 - Investigation of olefinic structures in Class 1 resinites by isolation and characterization of soluble polylabdanoids AN - 52518122; 1999-008725 JF - Abstracts of Papers - American Chemical Society, National Meeting AU - Clifford, David J AU - Hatcher, Patrick G AU - Botto, Robert E AU - Anderson, Ken B A2 - Oteyza, Julian Y1 - 1996/03// PY - 1996 DA - March 1996 PB - American Chemical Society, Washington, DC VL - 211 SN - 0065-7727, 0065-7727 KW - exinite KW - aliphatic hydrocarbons KW - resinite KW - bonding KW - NMR spectra KW - organic compounds KW - olefins KW - hydrocarbons KW - chemical properties KW - macerals KW - spectra KW - geochemistry KW - polylabdanoids KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52518122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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+-+American+Chemical+Society%2C+National+Meeting&rft.atitle=Investigation+of+olefinic+structures+in+Class+1+resinites+by+isolation+and+characterization+of+soluble+polylabdanoids&rft.au=Clifford%2C+David+J%3BHatcher%2C+Patrick+G%3BBotto%2C+Robert+E%3BAnderson%2C+Ken+B&rft.aulast=Clifford&rft.aufirst=David&rft.date=1996-03-01&rft.volume=211&rft.issue=&rft.spage=GEOC+049&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+-+American+Chemical+Society%2C+National+Meeting&rft.issn=00657727&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 211th ACS national meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1999-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; bonding; chemical properties; exinite; geochemistry; hydrocarbons; macerals; NMR spectra; olefins; organic compounds; polylabdanoids; resinite; spectra ER - TY - JOUR T1 - Synthetic-based muds can improve drilling efficiency without polluting AN - 50952284; 1996-030786 JF - Oil & Gas Journal AU - Veil, John A AU - Burke, Christopher J AU - Moses, David O Y1 - 1996/03// PY - 1996 DA - March 1996 SP - 49 EP - 54 PB - PennWell, Tulsa, OK VL - 94 IS - 10 SN - 0030-1388, 0030-1388 KW - wells KW - petroleum engineering KW - drilling muds KW - regulations KW - pollution KW - drilling KW - synthetic materials KW - ground water KW - 29A:Economic geology, geology of energy sources KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50952284?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Oil+%26+Gas+Journal&rft.atitle=Synthetic-based+muds+can+improve+drilling+efficiency+without+polluting&rft.au=Veil%2C+John+A%3BBurke%2C+Christopher+J%3BMoses%2C+David+O&rft.aulast=Veil&rft.aufirst=John&rft.date=1996-03-01&rft.volume=94&rft.issue=10&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Oil+%26+Gas+Journal&rft.issn=00301388&rft_id=info:doi/ L2 - http://ogj.pennnet.com/home.cfm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 18 N1 - PubXState - OK N1 - Document feature - 2 tables N1 - SuppNotes - Based on a presentation at the Water Env. Fed. Weftech '95 conf., Miami Beach, Fla., Oct. 22-25, 1995 N1 - Last updated - 2012-06-07 N1 - CODEN - OIGJAV N1 - SubjectsTermNotLitGenreText - drilling; drilling muds; ground water; petroleum engineering; pollution; regulations; synthetic materials; wells ER - TY - RPRT T1 - Derivation of guidelines for uranium residual radioactive material in soil at the New Brunswick Site, Middlesex County, New Jersey AN - 52657872; 1998-002685 AB - Residual radioactive material guidelines for uranium in soil were derived for the New Brunswick Site, located in Middlesex County, New Jersey. This site has been designated for remedial action under the Formerly Utilized Sites Remedial Action Program of the US Department of Energy (DOE). Residual radioactive material guidelines for individual radionuclides of concern and total uranium were derived on the basis of the requirement that the 50-year committed effective dose equivalent to a hypothetical individual who lives or works in the immediate vicinity of the New Brunswick Site should not exceed a dose of 30 mrem/yr following remedial action for the current-use and likely future-use scenarios or a dose of 100 mrem/yr for less likely future-use scenarios. The DOE residual radioactive material guideline computer code, RESRAD, was used in this evaluation; RESRAD implements the methodology described in the DOE manual for establishing residual radioactive material guidelines. The guidelines derived in this report are intended to apply to the remediation of these remaining residual radioactive materials at the site. The primary radionuclides of concern in these remaining materials are expected to be radium-226 and, to a lesser extent, natural uranium and thorium. The DOE has established generic cleanup guidelines for radium and thorium in soil; however, cleanup guidelines for other radionuclides must be derived on a site-specific basis. JF - Derivation of guidelines for uranium residual radioactive material in soil at the New Brunswick Site, Middlesex County, New Jersey AU - Dunning, D AU - Kamboj, S AU - Nimmagadda, M AU - Yu, C Y1 - 1996/02// PY - 1996 DA - February 1996 SP - 25 VL - ANL/EAD/TM-54 KW - United States KW - soils KW - alkaline earth metals KW - radium KW - isotopes KW - site exploration KW - waste disposal sites KW - remediation KW - radioactive waste KW - Ra-226 KW - radioactive isotopes KW - decontamination KW - metals KW - thorium KW - uranium KW - New Jersey KW - waste disposal KW - Middlesex County New Jersey KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52657872?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=Dunning%2C+D%3BKamboj%2C+S%3BNimmagadda%2C+M%3BYu%2C+C&rft.aulast=Dunning&rft.aufirst=D&rft.date=1996-02-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Derivation+of+guidelines+for+uranium+residual+radioactive+material+in+soil+at+the+New+Brunswick+Site%2C+Middlesex+County%2C+New+Jersey&rft.title=Derivation+of+guidelines+for+uranium+residual+radioactive+material+in+soil+at+the+New+Brunswick+Site%2C+Middlesex+County%2C+New+Jersey&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96008778NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Radiogenic helium degassing related to the 1995 Kobe earthquake AN - 925710180; 2012-027140 JF - Tokyo Daigaku Rigakubu Chikaku Kagaku Jikken Shisetsu Iho = Bulletin of Laboratory for Earthquake Chemistry AU - Sano, Yuji AU - Takahata, N AU - Igarashi, George AU - Koizumi, Naoji AU - Kitaoka, K AU - Sturchio, N C AU - Wakita, Hiroshi Y1 - 1996 PY - 1996 DA - 1996 SP - 36 EP - 37 PB - University of Tokyo, Faculty of Science, Laboratory for Earthquake Chemistry, Tokyo VL - 7 SN - 0910-688X, 0910-688X KW - Kobe Japan KW - Far East KW - ground water KW - seismicity KW - sampling KW - Hyogo-ken Nanbu earthquake 1995 KW - noble gases KW - earthquake prediction KW - helium KW - Honshu KW - Asia KW - Hyogo Japan KW - earthquakes KW - Japan KW - degassing KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925710180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tokyo+Daigaku+Rigakubu+Chikaku+Kagaku+Jikken+Shisetsu+Iho+%3D+Bulletin+of+Laboratory+for+Earthquake+Chemistry&rft.atitle=Radiogenic+helium+degassing+related+to+the+1995+Kobe+earthquake&rft.au=Sano%2C+Yuji%3BTakahata%2C+N%3BIgarashi%2C+George%3BKoizumi%2C+Naoji%3BKitaoka%2C+K%3BSturchio%2C+N+C%3BWakita%2C+Hiroshi&rft.aulast=Sano&rft.aufirst=Yuji&rft.date=1996-01-01&rft.volume=7&rft.issue=&rft.spage=36&rft.isbn=&rft.btitle=&rft.title=Tokyo+Daigaku+Rigakubu+Chikaku+Kagaku+Jikken+Shisetsu+Iho+%3D+Bulletin+of+Laboratory+for+Earthquake+Chemistry&rft.issn=0910688X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Prediction studies on earthquake and volcanic eruption by geochemical and hydrological methods N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; degassing; earthquake prediction; earthquakes; Far East; ground water; helium; Honshu; Hyogo Japan; Hyogo-ken Nanbu earthquake 1995; Japan; Kobe Japan; noble gases; sampling; seismicity ER - TY - JOUR T1 - Short-term secular variations of carbon and radon isotopes and relation to seismic activity in the Canary Islands, Spain AN - 925710175; 2012-027138 JF - Tokyo Daigaku Rigakubu Chikaku Kagaku Jikken Shisetsu Iho = Bulletin of Laboratory for Earthquake Chemistry AU - Perez, Nemesio M AU - Sturchio, N C AU - Arehart, G AU - Hernandez, P A AU - Wakita, Hiroshi Y1 - 1996 PY - 1996 DA - 1996 SP - 31 EP - 33 PB - University of Tokyo, Faculty of Science, Laboratory for Earthquake Chemistry, Tokyo VL - 7 SN - 0910-688X, 0910-688X KW - monitoring KW - isotopes KW - secular variations KW - isotope ratios KW - fumaroles KW - C-13/C-12 KW - radon KW - Rn-220 KW - stable isotopes KW - Rn-222 KW - Atlantic Ocean Islands KW - radioactive isotopes KW - Canary Islands KW - seismicity KW - sampling KW - noble gases KW - earthquake prediction KW - carbon KW - geochemistry KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925710175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tokyo+Daigaku+Rigakubu+Chikaku+Kagaku+Jikken+Shisetsu+Iho+%3D+Bulletin+of+Laboratory+for+Earthquake+Chemistry&rft.atitle=Short-term+secular+variations+of+carbon+and+radon+isotopes+and+relation+to+seismic+activity+in+the+Canary+Islands%2C+Spain&rft.au=Perez%2C+Nemesio+M%3BSturchio%2C+N+C%3BArehart%2C+G%3BHernandez%2C+P+A%3BWakita%2C+Hiroshi&rft.aulast=Perez&rft.aufirst=Nemesio&rft.date=1996-01-01&rft.volume=7&rft.issue=&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Tokyo+Daigaku+Rigakubu+Chikaku+Kagaku+Jikken+Shisetsu+Iho+%3D+Bulletin+of+Laboratory+for+Earthquake+Chemistry&rft.issn=0910688X&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - International symposium on Prediction studies on earthquake and volcanic eruption by geochemical and hydrological methods N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean Islands; C-13/C-12; Canary Islands; carbon; earthquake prediction; earthquakes; fumaroles; geochemistry; isotope ratios; isotopes; monitoring; noble gases; radioactive isotopes; radon; Rn-220; Rn-222; sampling; secular variations; seismicity; stable isotopes ER - TY - JOUR T1 - Effects of hydroxyl radical scavengers on relaxation of supercoiled DNA by aminomethyl-trimethyl-psoralen and monochromatic UVA photons. AN - 78149174; 8721619 AB - The ability of scavengers of hydroxyl radical (OH radical) to modulate the photosensitized relaxation (induction of the first single-strand break) of supercoiled plasmid DNA with UVA photoactivated 4'-aminomethyl-4,5',8-trimethylpsoralen was examined by comparing the dose reduction factor (DRF: the ratio of fluence required to induce the same degree of relaxation in the absence to the presence of OH radical scavengers). The addition of mannitol, azide, acetate, or formate at concentrations inversely proportional to the value of the rate constants for the scavenging of OH radicals partially attenuated the supercoiled DNA relaxation. The degrees of protection afforded by the four scavengers in the presence of AMT photoactivated by either 334 nm or 365 nm monochromatic photons were similar, giving an average DRF of about 0.25 in all cases. Given the diverse chemical nature of the scavengers and their wide range of concentrations utilized, these findings are evidence for the involvement of a Type I photosensitization in the induction of DNA single-strand breaks by photoactivated AMT. JF - Free radical biology & medicine AU - Oroskar, A A AU - Lambert, C AU - Peak, M J AD - Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, IL, USA. Y1 - 1996 PY - 1996 DA - 1996 SP - 751 EP - 756 VL - 20 IS - 5 SN - 0891-5849, 0891-5849 KW - Acetates KW - 0 KW - Azides KW - DNA, Superhelical KW - Formates KW - Free Radical Scavengers KW - Photosensitizing Agents KW - formic acid KW - 0YIW783RG1 KW - Hydroxyl Radical KW - 3352-57-6 KW - Mannitol KW - 3OWL53L36A KW - aminomethyltrioxsalen KW - 64358-50-5 KW - Sodium Azide KW - 968JJ8C9DV KW - Acetic Acid KW - Q40Q9N063P KW - Trioxsalen KW - Y6UY8OV51T KW - Index Medicus KW - Ultraviolet Rays KW - Azides -- pharmacology KW - Formates -- pharmacology KW - Plasmids -- drug effects KW - Plasmids -- radiation effects KW - Mannitol -- pharmacology KW - Acetates -- pharmacology KW - DNA, Superhelical -- drug effects KW - Hydroxyl Radical -- chemistry KW - DNA, Superhelical -- chemistry KW - DNA, Superhelical -- radiation effects KW - Hydroxyl Radical -- radiation effects KW - Photosensitizing Agents -- pharmacology KW - Trioxsalen -- pharmacology KW - Trioxsalen -- analogs & derivatives KW - Free Radical Scavengers -- pharmacology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/78149174?accountid=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=Free+radical+biology+%26+medicine&rft.atitle=Effects+of+hydroxyl+radical+scavengers+on+relaxation+of+supercoiled+DNA+by+aminomethyl-trimethyl-psoralen+and+monochromatic+UVA+photons.&rft.au=Oroskar%2C+A+A%3BLambert%2C+C%3BPeak%2C+M+J&rft.aulast=Oroskar&rft.aufirst=A&rft.date=1996-01-01&rft.volume=20&rft.issue=5&rft.spage=751&rft.isbn=&rft.btitle=&rft.title=Free+radical+biology+%26+medicine&rft.issn=08915849&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 1996-10-24 N1 - Date created - 1996-10-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Using Isotopic and Molecular Data To Model Landfill Gas Processes AN - 754892433; 13511415 AB - Using a large data set, a preliminary investigation has been made to evaluate the usefulness of stable isotope ratios for improving our understanding of methane and carbon dioxide generation in landfills. Included are approximately 130 landfill gas samples from across the U.S.A., and 18 recent samples from: (1) an Argonne Laboratory study area in the Brea-Olinda Landfill, Orange County, California (U.S.A); and (2) several Los Angeles County landfills, California (U.S.A). The following isotope ratios were examined: d super(13)C for methane, d super( 13)C for carbon dioxide and dD for methane. Using simple ratio plots supplemented by mass-balance calculations, these data show promise for indicating the relative contributions of the four major carbon cycle processes in landfills, namely: (1) direct oxidation of organic material to carbon dioxide; (2) methane generation from fermentation (acetate cleavage); (3) methane generation from carbon dioxide reduction; and (4) methane oxidation to carbon dioxide by methanotrophic bacteria. Both the methane generation and oxidation reactions are central to an explanation of the trends discussed herein. The data also suggest that direct oxidation of organic matter in the refuse may be contributing to the observed isotopic ratios in some cases. The trends observed at the Brea-Olinda site were similar to trends using the large U.S. database, suggesting that isotopic techniques may be useful to better constrain carbon cycle processes common to all landfill settings. [copy 1996 ISWA JF - Waste Management & Research AU - Bogner, JE AU - Sweeney, R E AU - Coleman, D AU - Huitric, R AU - Ririe, G T AD - Argonne National Laboratory, Argonne, Illinois, U.S.A Y1 - 1996 PY - 1996 DA - 1996 SP - 367 EP - 376 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 14 IS - 4 SN - 0734-242X, 0734-242X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts; Pollution Abstracts KW - Landfill KW - landfill gas KW - stable isotopes KW - methane generation KW - methane oxidation KW - carbon dioxide KW - U.S.A. KW - USA, California, Los Angeles Cty. KW - Molecular modelling KW - Isotopes KW - Fermentation KW - Landfills KW - Solid wastes KW - USA, California, Orange Cty. KW - Waste disposal sites KW - Methane KW - Refuse KW - Data processing KW - Organic matter KW - Carbon cycle KW - Acetic acid KW - Databases KW - Methanotrophic bacteria KW - Oxidation KW - Carbon dioxide KW - A 01450:Environmental Pollution & Waste Treatment KW - P 4000:WASTE MANAGEMENT KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754892433?accountid=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=Waste+Management+%26+Research&rft.atitle=Using+Isotopic+and+Molecular+Data+To+Model+Landfill+Gas+Processes&rft.au=Bogner%2C+JE%3BSweeney%2C+R+E%3BColeman%2C+D%3BHuitric%2C+R%3BRirie%2C+G+T&rft.aulast=Bogner&rft.aufirst=JE&rft.date=1996-01-01&rft.volume=14&rft.issue=4&rft.spage=367&rft.isbn=&rft.btitle=&rft.title=Waste+Management+%26+Research&rft.issn=0734242X&rft_id=info:doi/10.1177%2F0734242X9601400404 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Methane; Molecular modelling; Isotopes; Data processing; Landfills; Fermentation; Organic matter; Carbon cycle; Acetic acid; Solid wastes; Databases; Methanotrophic bacteria; Oxidation; Carbon dioxide; Refuse; Waste disposal sites; USA, California, Orange Cty.; USA, California, Los Angeles Cty. DO - http://dx.doi.org/10.1177/0734242X9601400404 ER - TY - JOUR T1 - Field System for Continuous Measurement of Landfill Gas Pressures and Temperatures AN - 754892357; 13511405 AB - The driving forces for gas movement in the subsurface include both concentration gradients (diffusion) and pressure gradients (convection). Near the top of the landfill, small soil gas pressure differences with respect to atmospheric pressure have been typically disregarded but may be important to considerations of gas flux into and out of landfill cover materials. The authors have developed a portable, inexpensive system using off-the-shelf components to sensitively monitor pressures, temperatures and meteorological variables on a continuous basis. Previous experience has indicated that continuous monitoring of pressure changes is necessary to understand the dynamics of convection in the shallow subsurface.This application relies on a distributed network of commercially available Z-180 microprocessor-based integrated controllers to condition signals from electronic pressure transducers, meteorological sensors, and various temperature-sensing devices : thermocouples, thermistors and resistance temperature detectors (RTDs). Output is recorded continuously over an Appletalk+ network. The sensitivity of the authors' current system exceeds 4 Pa for pressure and 0.01C for temperature (thermistor sensors).This paper will describe the basic system components. The various choices for both temperature and pressure sensors will be discussed with respect to their sensitivity, adaptability and resolution. In addition, sample data output will be presented to illustrate the dynamics of shallow subsurface pressure and temperature changes. [copy 1996 ISWA JF - Waste Management & Research AU - Spokas, KA AU - Bogner, JE AD - Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL, 60439, U.S.A Y1 - 1996 PY - 1996 DA - 1996 SP - 233 EP - 242 PB - Sage Publications Ltd., 6 Bonhill St. London EC2A 4PU UK VL - 14 IS - 3 SN - 0734-242X, 0734-242X KW - Pollution Abstracts KW - Landfill KW - data acquisition KW - pressure KW - temperature KW - monitoring system KW - network KW - continuous measurement KW - landfill gas. KW - Sensitivity KW - Sensors KW - Landfills KW - Temperature KW - convection KW - adaptability KW - Soil KW - Waste disposal sites KW - atmospheric pressure KW - Diffusion KW - transducers KW - Meteorology KW - pressure sensors KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754892357?accountid=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=Waste+Management+%26+Research&rft.atitle=Field+System+for+Continuous+Measurement+of+Landfill+Gas+Pressures+and+Temperatures&rft.au=Spokas%2C+KA%3BBogner%2C+JE&rft.aulast=Spokas&rft.aufirst=KA&rft.date=1996-01-01&rft.volume=14&rft.issue=3&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Waste+Management+%26+Research&rft.issn=0734242X&rft_id=info:doi/10.1177%2F0734242X9601400301 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Sensitivity; Sensors; Landfills; Temperature; convection; adaptability; Soil; Waste disposal sites; atmospheric pressure; Meteorology; transducers; Diffusion; pressure sensors DO - http://dx.doi.org/10.1177/0734242X9601400301 ER - TY - JOUR T1 - Occurrence of phenylalkanes in some Australian crude oils and sediments AN - 52809347; 1996-066119 JF - Organic Geochemistry AU - Ellis, Leroy AU - Langworthy, Tom A AU - Winans, Randall Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 57 EP - 69 PB - Pergamon, Oxford-New York VL - 24 IS - 1 SN - 0146-6380, 0146-6380 KW - steranes KW - organic residues KW - fatty acids KW - lipids KW - hopanoids KW - aliphatic hydrocarbons KW - mass spectra KW - petroleum KW - torbanite KW - phenylalkanes KW - sedimentary rocks KW - pyrolysis KW - sediments KW - crude oil KW - Australia KW - spectra KW - triterpanes KW - geochemistry KW - organic materials KW - Australasia KW - New South Wales Australia KW - alkanes KW - benzene KW - alkylbenzenes KW - organic compounds KW - organic acids KW - chromatograms KW - hydrocarbons KW - Sydney Basin KW - hopanes KW - aromatic hydrocarbons KW - 29A:Economic geology, geology of energy sources KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52809347?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Organic+Geochemistry&rft.atitle=Occurrence+of+phenylalkanes+in+some+Australian+crude+oils+and+sediments&rft.au=Ellis%2C+Leroy%3BLangworthy%2C+Tom+A%3BWinans%2C+Randall&rft.aulast=Ellis&rft.aufirst=Leroy&rft.date=1996-01-01&rft.volume=24&rft.issue=1&rft.spage=57&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/01466380 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Number of references - 32 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; alkylbenzenes; aromatic hydrocarbons; Australasia; Australia; benzene; chromatograms; crude oil; fatty acids; geochemistry; hopanes; hopanoids; hydrocarbons; lipids; mass spectra; New South Wales Australia; organic acids; organic compounds; organic materials; organic residues; petroleum; phenylalkanes; pyrolysis; sedimentary rocks; sediments; spectra; steranes; Sydney Basin; torbanite; triterpanes ER - TY - RPRT T1 - Frontiers; Research highlights, 1946-1996 AN - 52800443; 1996-063593 JF - Frontiers; Research highlights, 1946-1996 Y1 - 1996 PY - 1996 DA - 1996 SP - 102 KW - programs KW - technology KW - Argonne National Laboratory KW - education KW - research KW - review KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52800443?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=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Frontiers%3B+Research+highlights%2C+1946-1996&rft.title=Frontiers%3B+Research+highlights%2C+1946-1996&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1996-01-01 N1 - Availability - Argonne National Laboratory, Argonne, IL, United States N1 - Document feature - illus. N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Determination of phase equilibria in the system H (sub 2) O-NaCl-KCl-MgCl (sub 2) using synthetic fluid inclusions, with application to fluid inclusion studies AN - 52759604; 1997-014648 JF - Program and Abstracts; Biennial Pan-American Conference on Research on Fluid Inclusions AU - Vityk, Maxim O AU - Bodnar, Robert J AU - Hryn, John AU - Mavrogenes, John A A2 - Brown, Philip E. A2 - Hagemann, Steffen G. Y1 - 1996 PY - 1996 DA - 1996 SP - 143 PB - [publisher varies], [location varies] VL - 6 KW - water KW - systems KW - halides KW - sylvite KW - sodium chloride KW - experimental studies KW - potassium chloride KW - salinity KW - solution KW - magnesium chloride KW - halite KW - phase equilibria KW - inclusions KW - chlorides KW - fluid inclusions KW - synthetic materials KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52759604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Program+and+Abstracts%3B+Biennial+Pan-American+Conference+on+Research+on+Fluid+Inclusions&rft.atitle=Determination+of+phase+equilibria+in+the+system+H+%28sub+2%29+O-NaCl-KCl-MgCl+%28sub+2%29+using+synthetic+fluid+inclusions%2C+with+application+to+fluid+inclusion+studies&rft.au=Vityk%2C+Maxim+O%3BBodnar%2C+Robert+J%3BHryn%2C+John%3BMavrogenes%2C+John+A&rft.aulast=Vityk&rft.aufirst=Maxim&rft.date=1996-01-01&rft.volume=6&rft.issue=&rft.spage=143&rft.isbn=&rft.btitle=&rft.title=Program+and+Abstracts%3B+Biennial+Pan-American+Conference+on+Research+on+Fluid+Inclusions&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - PACROFI VI; Sixth biennial Pan-American conference on Research on fluid inclusions N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - #03421 N1 - SubjectsTermNotLitGenreText - chlorides; experimental studies; fluid inclusions; halides; halite; inclusions; magnesium chloride; phase equilibria; potassium chloride; salinity; sodium chloride; solution; sylvite; synthetic materials; systems; water ER - TY - BOOK T1 - Volatile organic compounds in soil; accurate and representative analysis AN - 52729794; 1997-038341 JF - Principles of environmental sampling AU - Smith, James S AU - Eng, Leslie AU - Comeau, Joseph AU - Rose, Candice AU - Schulte, Robert M AU - Barcelona, Michael J AU - Klopp, Kris AU - Pilgrim, Mary J AU - Minnich, Marty AU - Feenstra, Stan AU - Urban, Michael J AU - Moore, Michael B AU - Maskarinec, Michael P AU - Siegrist, Robert L AU - Parr, Jerry AU - Claff, Roger E A2 - Keith, Lawrence H. Y1 - 1996 PY - 1996 DA - 1996 PB - American Chemical Society, Washington, DC SN - 0841231524 KW - soils KW - volatiles KW - sample preparation KW - organic compounds KW - sampling KW - pollutants KW - volatile organic compounds KW - pollution KW - techniques KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52729794?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=Smith%2C+James+S%3BEng%2C+Leslie%3BComeau%2C+Joseph%3BRose%2C+Candice%3BSchulte%2C+Robert+M%3BBarcelona%2C+Michael+J%3BKlopp%2C+Kris%3BPilgrim%2C+Mary+J%3BMinnich%2C+Marty%3BFeenstra%2C+Stan%3BUrban%2C+Michael+J%3BMoore%2C+Michael+B%3BMaskarinec%2C+Michael+P%3BSiegrist%2C+Robert+L%3BParr%2C+Jerry%3BClaff%2C+Roger+E&rft.aulast=Smith&rft.aufirst=James&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=0841231524&rft.btitle=Volatile+organic+compounds+in+soil%3B+accurate+and+representative+analysis&rft.title=Volatile+organic+compounds+in+soil%3B+accurate+and+representative+analysis&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 1997-01-01 N1 - Number of references - 17 N1 - PubXState - DC N1 - Document feature - 5 tables N1 - SuppNotes - Edition: 2 N1 - Last updated - 2012-06-07 ER - TY - JOUR T1 - Now you see them, now you don't; effects of phase relationships of insolation, climate, sediment yield, and glacioeustatic cycles on the stratigraphic expression of Milankovitch cycles AN - 52708468; 1997-040236 AB - Precession, obliquity, and eccentricity cycles change the seasonal distribution of insolation. These changes alter atmospheric circulation patterns, shifting the location of wet and dry climate zones. As a region shifts from dry to wet, clastic sediment yield can vary by as much as two orders of magnitude. Particular phases of regional climate changes are not correlative; some regions become wetter as others become drier. Therefore, regional sediment yield cycles may not be synchronous. Glacioeustatic cycles, primarily a function of the insolation cycle in the glaciated hemisphere, are globally synchronous. As a result, there is no set phase relationship between glacioeustasy and regional sediment yield. Additionally, northern and southern hemisphere insolation cycles, ordinarily 180 degrees out of phase, can become nearly in phase as eccentricity approaches zero. We examined potential inter-hemispheric variability under conditions of a southern polar glacier. Accommodation space was assumed to be a function of sea level, with sediment yield a function of climate. Insolation values at different latitudes for a 5 million year interval were calculated, with the insolation cycle for the 60o S used as a proxy indicator of sea level. Sediment supply was calculated as a function of the summer insolation at a given latitude. This simple model produced markedly different patterns of stratigraphic bed thickness for the two hemispheres, suggesting the style of variability to look for in the stratigraphic record. JF - Abstracts with Programs - Geological Society of America AU - Perlmutter, Martin A AU - Plotnick, Roy E AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 237 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 7 SN - 0016-7592, 0016-7592 KW - cycles KW - eustacy KW - clastic sediments KW - precession KW - variations KW - eccentricity KW - sediment yield KW - sediments KW - Milankovitch theory KW - insolation KW - seasonal variations KW - climate KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52708468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Now+you+see+them%2C+now+you+don%27t%3B+effects+of+phase+relationships+of+insolation%2C+climate%2C+sediment+yield%2C+and+glacioeustatic+cycles+on+the+stratigraphic+expression+of+Milankovitch+cycles&rft.au=Perlmutter%2C+Martin+A%3BPlotnick%2C+Roy+E%3BAnonymous&rft.aulast=Perlmutter&rft.aufirst=Martin&rft.date=1996-01-01&rft.volume=28&rft.issue=7&rft.spage=237&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, 28th 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 - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - clastic sediments; climate; cycles; eccentricity; eustacy; insolation; Milankovitch theory; precession; seasonal variations; sediment yield; sediments; variations ER - TY - JOUR T1 - Migration of a dissolved DNAPL plume in a heterogeneous aquifer deposited in a coastal environment AN - 52701916; 1997-048033 AB - In a geologically heterogeneous aquifer, the migration of contaminant plumes in groundwater is influenced by subtle variations in the physical characteristics of sediment. This study identifies the preferred transport routes of a dissolved dense nonaqueous phase liquid (DNAPL) plume under a site located at the mouth of the Gunpowder river which discharges into Chesapeake Bay. The site is in a highland surrounded by marshes on three sides within a peninsula.Analysis of soil borings indicates that the sediment deposition was primarily affected by three factors: the sediment supply by the river adjacent to the site, the tidal action in the bay, and the sea level fluctuation of the Pleistocene. The physical characteristics of the sediment vary spatially, ranging from silty very fine- to medium-grained sand. The lateral variation of the grain size reflects the various facies of sedimentation, like that of a barrier island in a bay environment. The vertical variation reflects the last phase of sea level uprising of the Pleistocene, resulting in the transgressive sequential nature of the sediment. The high ground of the site is a groundwater recharge area and was also the source area of DNAPL contaminants. Groundwater samples, collected from monitoring wells on land and in the marsh, and surface water samples, collected in the marsh, indicate that a dissolved DNAPL plume exists in the aquifer. The preferred transport routes of the contaminants followed southern and southeastern trends, migrating under the marsh and also emerging locally at the edge of the highland as seepage. The preferred routes are indicated by the relatively high concentration levels of contaminants in groundwater and in local surface water. The pattern of the transport routes is consistent with the spatial distribution of medium-grained sand deposited in the bay-side of the barrier island. JF - Abstracts with Programs - Geological Society of America AU - Yuen, Cheong-Yip R AU - Biang, Randall P AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 479 EP - 480 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Chesapeake Bay KW - contaminant plumes KW - dense nonaqueous phase liquids KW - variations KW - ground water KW - spatial distribution KW - movement KW - heterogeneity KW - Atlantic Coastal Plain KW - soils KW - barrier islands KW - pollutants KW - grain size KW - surface water KW - solutes KW - pollution KW - aquifers KW - nonaqueous phase liquids KW - sea-level changes KW - physical properties KW - heterogeneous materials KW - coastal environment KW - Gunpowder River KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52701916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Migration+of+a+dissolved+DNAPL+plume+in+a+heterogeneous+aquifer+deposited+in+a+coastal+environment&rft.au=Yuen%2C+Cheong-Yip+R%3BBiang%2C+Randall+P%3BAnonymous&rft.aulast=Yuen&rft.aufirst=Cheong-Yip&rft.date=1996-01-01&rft.volume=28&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, 28th annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2014-03-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; Atlantic Coastal Plain; barrier islands; Chesapeake Bay; coastal environment; contaminant plumes; dense nonaqueous phase liquids; grain size; ground water; Gunpowder River; heterogeneity; heterogeneous materials; movement; nonaqueous phase liquids; physical properties; pollutants; pollution; sea-level changes; soils; solutes; spatial distribution; surface water; United States; variations ER - TY - JOUR T1 - Monitoring thirty years of urban encroachment onto agricultural lands, the Nile Delta, Egypt, using Landsat data AN - 52701461; 1997-048519 AB - Efforts to increase cultivated land by reclamation of the vast Egyptian deserts are undermined by urbanization of the fertile lands of the Nile Delta. The latter encompasses over 90% of the agricultural land of Egypt. Satellite data were used to monitor the encroachment of urbanization onto the Nile Delta throughout the past three decades and to direct efforts to combat them. The Delta is covered by three Multi-spectral Scanner (MSS) scenes and four Landsat Thematic Mapper (TM) scenes. A mosaic was generated from three MSS scenes acquired over the Delta in August and September of 1972. Another was generated from TM scenes acquired over the Delta in September of 1984 and a third was generated from TM images acquired in May and August of 1990. The three satellite mosaics were co- registered and the images were processed to enhance spectral variations between cultivated land and urban areas and to minimize spectral variations related to atmospheric interferences and differences in sun angle elevation. Three color composites were generated from pairs of the three digital mosaics, and were used to identify the location and timing of urban progression in the Nile Delta. Preliminary results indicate that Egypt has lost at least 10% of its agricultural land to urbanization throughout the past thirty years, and that expansion of the smaller, yet numerous, villages poses the largest threat to Egypt's agricultural land. JF - Abstracts with Programs - Geological Society of America AU - Sultan, Mohamed AU - Stein, T AU - Becker, R AU - Madany, A AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 95 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 7 SN - 0016-7592, 0016-7592 KW - Nile Delta KW - monitoring KW - geophysical surveys KW - North Africa KW - data acquisition KW - reclamation KW - agriculture KW - urbanization KW - satellite methods KW - variations KW - urban environment KW - Egypt KW - Landsat KW - mosaics KW - surveys KW - Africa KW - multispectral scanner KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52701461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Monitoring+thirty+years+of+urban+encroachment+onto+agricultural+lands%2C+the+Nile+Delta%2C+Egypt%2C+using+Landsat+data&rft.au=Sultan%2C+Mohamed%3BStein%2C+T%3BBecker%2C+R%3BMadany%2C+A%3BAnonymous&rft.aulast=Sultan&rft.aufirst=Mohamed&rft.date=1996-01-01&rft.volume=28&rft.issue=7&rft.spage=95&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, 28th 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 - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Africa; agriculture; data acquisition; Egypt; geophysical surveys; Landsat; monitoring; mosaics; multispectral scanner; Nile Delta; North Africa; reclamation; remote sensing; satellite methods; surveys; urban environment; urbanization; variations ER - TY - JOUR T1 - Early diagenesis of garbage; landfills as engineered anoxic basins AN - 52701187; 1997-048091 AB - Early diagenesis of buried organic carbon in anoxic basins is dominated by microbial decomposition processes at temperatures and pressure slightly above ambient. Such conditions also describe decomposition of refuse in sanitary landfills and provide a reasonable model for systematic studies of their long-term geochemistry. For shorter time frame (decades), controlled high-solids anaerobic digestion systems provide a second model for investigation of optimized landfill systems. In this paper, we introduce both models through a series of preliminary mass-balances to develop a realistic overview of landfill processes, especially emphasizing carbon cycling in field settings over various time-frames. The terminal product of short-term anaerobic decomposition is methane--produced by methanogenic bacteria from some fraction of organic carbon landfilled. Laboratory studies of optimized landfill systems (ours and from the literature) indicate that, at best, 25-45% of organic carbon is converted to biogas carbon (methane and carbon dioxide); such percentages are rarely attained in field settings. Most of the methane is produced from cellulosic substrates while lignin substrates are recalcitrant, with lignin carbon entering sedimentary storage for time frames longer than the four decades of widespread landfilling experience in the U.S. and western Europe. Over time frames in excess of centuries, further transformations via kerogen pathways are possible but highly speculative. Certainly, exhumation of old refuse at archeologic sites indicates that organic carbon preservation can be documented for at least one or two millenia. From controlled incubation of unamended field samples and from field studies of net methane emissions, it is clear that rates of methane production and consumption both vary of several orders of magnitude in field settings; their dynamic are rapid and complex spatially and temporally. Unraveling these dynamics is necessary to suggest the overall relevance of these engineered anoxic basins to issues of atmospheric methane increases and terrestrial carbon storage. JF - Abstracts with Programs - Geological Society of America AU - Bogner, Jean E AU - Lagerkvist, Anders AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 257 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 7 SN - 0016-7592, 0016-7592 KW - organic materials KW - experimental studies KW - early diagenesis KW - methane KW - lignin KW - landfills KW - aliphatic hydrocarbons KW - optimization KW - alkanes KW - seepage KW - substrates KW - organic compounds KW - diagenesis KW - carbon KW - hydrocarbons KW - exhumation KW - anaerobic environment KW - waste disposal KW - organic carbon KW - sanitary landfills KW - P-T conditions KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52701187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Early+diagenesis+of+garbage%3B+landfills+as+engineered+anoxic+basins&rft.au=Bogner%2C+Jean+E%3BLagerkvist%2C+Anders%3BAnonymous&rft.aulast=Bogner&rft.aufirst=Jean&rft.date=1996-01-01&rft.volume=28&rft.issue=7&rft.spage=257&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, 28th 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 - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; anaerobic environment; carbon; diagenesis; early diagenesis; exhumation; experimental studies; hydrocarbons; landfills; lignin; methane; optimization; organic carbon; organic compounds; organic materials; P-T conditions; sanitary landfills; seepage; substrates; waste disposal ER - TY - JOUR T1 - Isotopic compositions of calcic Paleosols from the Blackwater Draw and Ogallala formations; evidence of global ecological change in the late Miocene AN - 52697628; 1997-048321 AB - Stable carbon and oxygen isotopic compositions of calcic paleosols in the Ogallala (Miocene-Pliocene) and the overlying Blackwater Draw (Quaternary) formations near Amarillo, Texas, in the southern High Plains were measured to evaluate the paleoclimatic conditions during the deposition of these sediments. Carbonates in the upper 200 ft of the Ogallala Formation (below the Caprock Caliche layer at the top of the formation) have average (n = 16) d13C (PDB) and d18O (SMOW) values of -5.2 per mil and 24.7 per mil, respectively. In the Blackwater Draw Formation, carbonates collected from near the surface to the bottom of the formation (above the Caprock Caliche) have average (n = 34) d13C and d18O values of -1.0 and 25.4 per mil, respectively. The isotopic values are nearly uniform with depth in both the formations. The d18O values indicate a lack of significant warming towards the end of the Ogallala deposition and precipitation from soil solutions that were not impacted by evaporation. The lower d13C values of paleosols in the Ogallala indicate that soil gas carbon dioxide was derived from mixed C3-C4 vegetation, compared to primarily C4 vegetation in the Blackwater Draw. Vegetation utilizing the C4 photosynthetic mechanism is considered to have evolved in semiarid and subtropical areas in the late Miocene and to have expanded rapidly between about 7-5 Ma, due to a decrease in the atmospheric carbon dioxide levels (Cerling et al., Nature, 1993). Isotopic compositions of paleosols from the southern High Plains provide evidence for this global ecological change. JF - Abstracts with Programs - Geological Society of America AU - Aggarwal, Pradeep K AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 76 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - oxygen KW - isotopes KW - Ogallala Formation KW - vegetation KW - paleoclimatology KW - stable isotopes KW - Blackwater Draw Formation KW - paleoecology KW - carbon dioxide KW - Cenozoic KW - carbon KW - Great Plains KW - paleosols KW - Caprock Caliche KW - Texas Panhandle KW - Southern Great Plains KW - Amarillo Texas KW - North America KW - Quaternary KW - isotope ratios KW - paleoatmosphere KW - calcic composition KW - C-13/C-12 KW - Texas KW - O-18/O-16 KW - Miocene KW - Potter County Texas KW - Tertiary KW - Neogene KW - upper Miocene KW - soil gases KW - changes KW - 12:Stratigraphy KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52697628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Isotopic+compositions+of+calcic+Paleosols+from+the+Blackwater+Draw+and+Ogallala+formations%3B+evidence+of+global+ecological+change+in+the+late+Miocene&rft.au=Aggarwal%2C+Pradeep+K%3BAnonymous&rft.aulast=Aggarwal&rft.aufirst=Pradeep&rft.date=1996-01-01&rft.volume=28&rft.issue=7&rft.spage=76&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, 28th 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 - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Amarillo Texas; Blackwater Draw Formation; C-13/C-12; calcic composition; Caprock Caliche; carbon; carbon dioxide; Cenozoic; changes; Great Plains; isotope ratios; isotopes; Miocene; Neogene; North America; O-18/O-16; Ogallala Formation; oxygen; paleoatmosphere; paleoclimatology; paleoecology; paleosols; Potter County Texas; Quaternary; soil gases; Southern Great Plains; stable isotopes; Tertiary; Texas; Texas Panhandle; United States; upper Miocene; vegetation ER - TY - JOUR T1 - Contaminant uranium phases and leaching at the Fernald Site in Ohio AN - 52677702; 1997-070985 JF - Environmental Science & Technology, ES & T AU - Buck, Edgar C AU - Brown, Neil R AU - Dietz, Nancy L Y1 - 1996/01// PY - 1996 DA - January 1996 SP - 81 EP - 88 PB - American Chemical Society, Washington, DC VL - 30 IS - 1 SN - 0013-936X, 0013-936X KW - United States KW - experimental studies KW - X-ray diffraction data KW - pollutants KW - Fernald Nuclear Facility KW - pollution KW - TEM data KW - remediation KW - radioactive waste KW - waste management KW - detection KW - Hamilton County Ohio KW - incineration KW - Cincinnati Ohio KW - oxides KW - waste disposal KW - leaching KW - uraninite KW - SEM data KW - Ohio KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52677702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Contaminant+uranium+phases+and+leaching+at+the+Fernald+Site+in+Ohio&rft.au=Buck%2C+Edgar+C%3BBrown%2C+Neil+R%3BDietz%2C+Nancy+L&rft.aulast=Buck&rft.aufirst=Edgar&rft.date=1996-01-01&rft.volume=30&rft.issue=1&rft.spage=81&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 - 1997-01-01 N1 - Number of references - 21 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - ESTHAG N1 - SubjectsTermNotLitGenreText - Cincinnati Ohio; detection; experimental studies; Fernald Nuclear Facility; Hamilton County Ohio; incineration; leaching; Ohio; oxides; pollutants; pollution; radioactive waste; remediation; SEM data; TEM data; United States; uraninite; waste disposal; waste management; X-ray diffraction data ER - TY - JOUR T1 - Incorporation of rare earth elements in titanite; stabilization of the A2/a dimorph by creation of type 2 antiphase boundaries AN - 52667068; 1997-074952 JF - Abstracts with Programs - Geological Society of America AU - Hughes, John M AU - Bloodaxe, Erich S AU - Hanchar, John M AU - Foord, Eugene E AU - Anonymous Y1 - 1996 PY - 1996 DA - 1996 SP - 47 PB - Geological Society of America (GSA), Boulder, CO VL - 28 IS - 7 SN - 0016-7592, 0016-7592 KW - silicates KW - calcium KW - alkaline earth metals KW - refinement KW - space groups KW - substitution KW - crystal structure KW - titanite KW - nesosilicates KW - polymorphism KW - metals KW - titanite group KW - orthosilicates KW - calcium ion KW - valency KW - rare earths KW - crystal chemistry KW - synthetic materials KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52667068?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info: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=Incorporation+of+rare+earth+elements+in+titanite%3B+stabilization+of+the+A2%2Fa+dimorph+by+creation+of+type+2+antiphase+boundaries&rft.au=Hughes%2C+John+M%3BBloodaxe%2C+Erich+S%3BHanchar%2C+John+M%3BFoord%2C+Eugene+E%3BAnonymous&rft.aulast=Hughes&rft.aufirst=John&rft.date=1996-01-01&rft.volume=28&rft.issue=7&rft.spage=47&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, 28th 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 - 1997-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcium; calcium ion; crystal chemistry; crystal structure; metals; nesosilicates; orthosilicates; polymorphism; rare earths; refinement; silicates; space groups; substitution; synthetic materials; titanite; titanite group; valency ER - TY - RPRT T1 - Emissions of non-methane organic compounds from a grassland site AN - 52663824; 1998-002504 AB - A mixture of oxygenated hydrocarbons (OxHCs), isoprene, and monoterpenes was detected in the emissions from a grassland site in the Midwestern United States. A plot dominated by crown vetch (Coronilla varia) and bluegrass (Poa spp.), exhibited a constant decrease in emissions of total non-methane organic compounds (NMOCs) from 580 micrograms/sq m/hr in June 1992 to 150 micrograms/sq m/hr in October 1992, except for a slight increase in August. Total NMOC emission rates based on vegetative biomass averaged 2.3 micrograms/g/hr, with 10% of the identified NMOCs attributed to monoterpenes and the remainder mainly OxHCs. Over the course of the investigation, the relationship between the monoterpene emission rate and the temperature for a single plot was logarithmic and similar to the one between compound vapor pressure and temperature. However, emission rates normalized to temperature decreased throughout the summer and fall, indicating that parameterizations of emission rates from herbaceous plants must include a factor to compensate for environmental conditions such as soil moisture and nutrient deposition, which affect plant phenology and the seasonal pattern of species dominance. JF - Emissions of non-methane organic compounds from a grassland site AU - Fukui, Y AU - Doskey, P V Y1 - 1996 PY - 1996 DA - 1996 SP - 19 VL - ANL/ER/PP-82964 KW - United States KW - Monocotyledoneae KW - Spermatophyta KW - acetone KW - agricultural waste KW - moisture KW - aliphatic hydrocarbons KW - isoprenoids KW - alcohols KW - greenhouse effect KW - soils KW - Plantae KW - monitoring KW - methane KW - pollution KW - alkanes KW - methanol KW - nutrients KW - ethanol KW - physical properties KW - organic compounds KW - aldehydes KW - hydrocarbons KW - seasonal variations KW - waste disposal KW - Gramineae KW - land use KW - Angiospermae KW - Midwest KW - ketones KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52663824?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=Fukui%2C+Y%3BDoskey%2C+P+V&rft.aulast=Fukui&rft.aufirst=Y&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Emissions+of+non-methane+organic+compounds+from+a+grassland+site&rft.title=Emissions+of+non-methane+organic+compounds+from+a+grassland+site&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96007632NEG, Springfield, VA, United States N1 - SuppNotes - Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Wastes characterization using APSTNG technology AN - 52648751; 1998-003163 AB - The associated-particle sealed-tube neutron generator (APSTNG) interrogates the inspected object with 14-MeV neutrons from d-t reaction and detects the alpha-particle associated with each neutron inside a cone encompassing the region of interest. Gamma-ray spectra from resulting neutron reactions inside the inspected volume identify fissionable materials and many nuclides. Flight times from detection times of the gamma rays and alpha particles separate the prompt and delayed gamma-ray spectra and can yield coarse tomographic images from a single orientation. The high-energy neutrons and gamma rays penetrate large objects and dense materials. The gamma-ray detector and neutron generator can be on the same side of the interrogated objects, so walls and other confined areas can be inspected as well as sealed containers. No collimators or radiation shielding are needed. The neutron generator is simple and small. Commercial electronics are used. A complete system could be transported in a van. Laboratory and limited field tests indicate APSTNG could be useful in analyzing radioactive waste in drums, walls, soils, and processing systems, particularly for unknown or heterogeneous configurations that may attenuate radiation. Toxic chemicals could be identified in mixed waste, and the ability to detect pockets of water may address criticality concerns. JF - Wastes characterization using APSTNG technology AU - Rhodes, E A AU - Dickerman, C E Y1 - 1996 PY - 1996 DA - 1996 SP - 17 VL - ANL/RE/CP-88220 | CONF-960306-21 KW - soils KW - hazardous waste KW - toxic materials KW - experimental studies KW - degradation KW - radioactivity KW - characterization KW - pollution KW - migration of elements KW - radioactive waste KW - laboratory studies KW - gamma-gamma methods KW - waste disposal KW - storage KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52648751?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=Rhodes%2C+E+A%3BDickerman%2C+C+E&rft.aulast=Rhodes&rft.aufirst=E&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Wastes+characterization+using+APSTNG+technology&rft.title=Wastes+characterization+using+APSTNG+technology&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96007066NEG, Springfield, VA, United States N1 - SuppNotes - Presented at ICONE 4; ASME/JSME international conference on Nuclear engineering, New Orleans, LA, Mar. 10-13, 1996; Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Long-term corrosion behavior of environmental assessment glass AN - 52644852; 1998-003573 JF - Long-term corrosion behavior of environmental assessment glass AU - Ebert, W L AU - Bates, J K Y1 - 1996 PY - 1996 DA - 1996 SP - 4 VL - ANL/CMT/CP-88395 | CONF-960421-30 KW - corrosion KW - high-level waste KW - degradation KW - volcanic rocks KW - igneous rocks KW - physicochemical properties KW - stability KW - pollution KW - migration of elements KW - preventive measures KW - radioactive waste KW - ground water KW - pyroclastics KW - crystallization KW - tuff KW - waste disposal KW - leaching KW - mobility KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/52644852?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=Ebert%2C+W+L%3BBates%2C+J+K&rft.aulast=Ebert&rft.aufirst=W&rft.date=1996-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Long-term+corrosion+behavior+of+environmental+assessment+glass&rft.title=Long-term+corrosion+behavior+of+environmental+assessment+glass&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from NTIS database, National Technical Information Service, Springfield, VA, United States N1 - Date revised - 1998-01-01 N1 - Availability - National Technical Information Service, (703)605-6000, order number DE96008451NEG, Springfield, VA, United States N1 - SuppNotes - Presented at the 1996 international High-level radioactive waste management conference, Las Vegas, NV, Apr. 29-May 3, 1996; Contract W-31109-ENG-38 N1 - Last updated - 2012-06-07 ER - TY - RPRT T1 - Treatment of plutonium contaminated soil/sediment from the Mound site using the ACT*DE*CON (super SM) process AN - 52634131; 1998-003340 AB - The removal and/or treatment of contaminated soil is a major problem facing the US DOE. The EG&G Mound Applied Technologies site in Miamisburg, Ohio, has an estimated 1.5 million cubic feet of soils from past disposal and waste burial practices awaiting remediation from plutonium contamination. This amount includes sediment from the Miami-Erie Canal that was contaminated in 1969 following a pipe-rupture accident. Conventional soil washing techniques that use particle separation would generate too large a waste volume to be economically feasible. Therefore, innovative technologies are needed for the c