FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Minton, TK Zhang, JM Brunsvold, AL Upadhyaya, HP Camden, JP Paci, JT Garashchuk, S Schatz, GC AF Minton, Timothy K. Zhang, Jianming Brunsvold, Amy L. Upadhyaya, Hari P. Camden, Jon P. Paci, Jeffrey T. Garashchuk, Sophya Schatz, George C. TI PHYS 30-Crossed-beams and theoretical studies of hyperthermal reactions of O(P-3) with HCl and (H)2O SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Minton, Timothy K.; Zhang, Jianming; Upadhyaya, Hari P.] Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA. [Brunsvold, Amy L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Camden, Jon P.; Schatz, George C.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. [Paci, Jeffrey T.] Univ Victoria, Dept Chem, Victoria, BC V8W 3V6, Canada. [Garashchuk, Sophya] Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA. EM tminton@montana.edu; jzhang@montana.edu; amybrunsvold@berkeley.edu; upadhyayahari@rediffmail.com; jon.camden@gmail.com; jpaci@chem.northwestern.edu; garashchuk@mail.chem.sc.edu; schatz@chem.northwestern.edu RI Brunsvold, Amy/H-4315-2016 OI Brunsvold, Amy/0000-0001-9257-2978 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 30-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109731 ER PT J AU Moens, L Czernik, SR AF Moens, Luc Czernik, Stefan R. TI FUEL 165-A method for neutralization and stabilization of biomass pyrolysis oils SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Moens, Luc; Czernik, Stefan R.] NREL, Natl Bioenergy Ctr, Golden, CO 80401 USA. EM luc_moens@nrel.gov; stefan_czernik@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 165-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104655 ER PT J AU Montgomery, JM Gray, SK AF Montgomery, Jason M. Gray, Stephen K. TI PHYS 472-Enhanced propagation lengths for surface plasmons in an asymmetric plasmonic waveguide SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Montgomery, Jason M.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Gray, Stephen K.] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. EM jmontgomery@anl.gov; gray@tcg.anl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 472-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108735 ER PT J AU Moody, KJ AF Moody, Kenton J. TI Characterization of the decay properties of 250Cm SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Moody, Kenton J.] Lawrence Livermore Natl Lab, AX Div, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 13-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107444 ER PT J AU Moody, NR Cordill, MJ Kennedy, MS Nguyen, TD Adams, DP Emerson, JA Bahr, DF Reedy, ED AF Moody, Neville R. Cordill, Megan J. Kennedy, Marian S. Nguyen, Thao D. Adams, David P. Emerson, John A. Bahr, David F. Reedy, E. David, Jr. TI PMSE 73-Effects of substrate compliance on fracture of thin hard films SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Moody, Neville R.; Adams, David P.; Emerson, John A.; Reedy, E. David, Jr.] Sandia Natl Labs, Dept Hydrogen & Met Sci, Livermore, CA 94551 USA. [Cordill, Megan J.] Univ Min & Met Leoben, A-8700 Leoben, Austria. [Kennedy, Marian S.] Clemson Univ, Clemson, SC 29634 USA. [Nguyen, Thao D.] Johns Hopkins Univ, Baltimore, MD 21218 USA. [Bahr, David F.] Washington State Univ, Pullman, WA 99164 USA. EM nrmoody@sandia.gov; megan.cordill@oeaw.ac.at; mskenne@clemson.edu; vicky.nguyen@jhu.edu; dpadams@sandia.gov; jaemers@sandia.gov; dbahr@wsu.edu; edreedy@sandia.gov RI Bahr, David/A-6521-2012; Nguyen, Thao/A-3391-2010 OI Bahr, David/0000-0003-2893-967X; Nguyen, Thao/0000-0002-0312-1583 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 73-PMSE PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109300 ER PT J AU Moretto, L AF Moretto, Luciano TI The Hagedorn thermostat SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Moretto, Luciano] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. EM lgmoretto@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 64-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107437 ER PT J AU Muckerman, JT Fujita, E AF Muckerman, James T. Fujita, Etsuko TI CHED 1463-Artificial photosynthesis SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Muckerman, James T.; Fujita, Etsuko] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM muckerma@bnl.gov; fujita@bnl.gov RI Fujita, Etsuko/D-8814-2013; Muckerman, James/D-8752-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1463-CHED PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775102272 ER PT J AU Mullin, JM Collins, MA Gordon, MS AF Mullin, Jonathan M. Collins, Michael A. Gordon, Mark S. TI PHYS 365-What if all the king's men could put Humpty Dumpty back together again? SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Mullin, Jonathan M.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Collins, Michael A.] Australian Natl Univ, Res Sch Chem, Canberra, ACT 0200, Australia. [Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM jonathan@si.fi.ameslab.gov; collins@rsc.anu.edu.au; mark@si.msg.chem.iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 365-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109716 ER PT J AU Mullin, JM Gordon, MS AF Mullin, Jonathan M. Gordon, Mark S. TI COMP 113-Molecular dynamics with generalized effective fragment potentials SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Mullin, Jonathan M.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM jonathan@si.fi.ameslab.gov; mark@si.msg.chem.iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 113-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104196 ER PT J AU Musfeldt, JL Rai, RC Cao, J Brown, S Kasinathan, D Singh, DJ Lawes, G Rogado, N Cava, RJ Wei, X AF Musfeldt, J. L. Rai, R. C. Cao, J. Brown, S. Kasinathan, D. Singh, D. J. Lawes, G. Rogado, N. Cava, R. J. Wei, X. TI INOR 568-Discovery of high-energy magneto-dielectric effects in frustrated Kagome staircase materials SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Musfeldt, J. L.; Rai, R. C.; Cao, J.; Brown, S.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Kasinathan, D.] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA. [Singh, D. J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Lawes, G.] Wayne State Univ, Dept Phys, Detroit, MI 48201 USA. [Rogado, N.; Cava, R. J.] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA. [Wei, X.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. EM musfeldt@utk.edu RI Singh, David/I-2416-2012 NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 568-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105595 ER PT J AU Nash, KL Jensen, MP AF Nash, Kenneth L. Jensen, Mark P. TI NUCL 67-James C. Sullivan: Pioneering work on actinide kinetics SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Nash, Kenneth L.] Washington State Univ, Dept Chem, Pullman, WA 99164 USA. [Jensen, Mark P.] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. EM knash@wsu.edu; mjensen@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 67-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107392 ER PT J AU Nelson, R Eisenberg, D AF Nelson, Rebecca Eisenberg, David TI BIOL 27-Aggregation diseases SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Nelson, Rebecca; Eisenberg, David] Univ Calif Los Angeles, Howard Hughes Med Inst, UCLA DOE Inst Genom & Prote, Los Angeles, CA 90095 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 27-BIOL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100777 ER PT J AU Nelson, SL Gregorich, KE Dragojevic, I Garcia, MA Gates, JM Sudowe, R Nitsche, H AF Nelson, Sarah L. Gregorich, Kenneth E. Dragojevic, Irena Garcia, Mitch A. Gates, Jacklyn M. Sudowe, Ralf Nitsche, Heino TI NUCL 11-Lightest isotope of Bh produced via the 209Bi(52Cr,n)260Bh reaction SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Gates, Jacklyn M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Dept Chem, Berkeley, CA 94720 USA. [Garcia, Mitch A.] Univ Calif Berkeley, Coll Chem, Berkeley, CA 94720 USA. EM slnelson@lbl.gov; kegregorich@lbl.gov; jmgates@lbl.gov; ralf.sudowe@unlv.edu; hnitsche@lbl.gov RI Garcia, Mitch/G-2413-2010 NR 2 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 11-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107386 ER PT J AU Nenoff, TM Ockwig, NW Garino, TJ Krumhansl, JL AF Nenoff, Tina M. Ockwig, Nathan W. Garino, Terry J. Krumhansl, J. L. TI Fundamental study for the understanding of inorganic iodine separations and waste forms SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Nenoff, Tina M.] Sandia Natl Labs, Inorgan Crystalline Porous Mat Grp, Albuquerque, NM 87185 USA. [Ockwig, Nathan W.; Krumhansl, J. L.] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA. EM tmnenof@sandia.gov; NOCKWIG@sandia.gov; tjgarin@sandia.gov; jlkrumh@sandia.gov NR 0 TC 0 Z9 0 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 128-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107425 ER PT J AU Neu, MP Reilly, SD AF Neu, Mary P. Reilly, Sean D. TI Plutonium carbonates and additional environmentally relevant complexes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Reilly, Sean D.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87544 USA. EM mneu@lanl.gov; sreilly@lanl.gov NR 0 TC 0 Z9 0 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 56-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107421 ER PT J AU Neu, MP Gaunt, AJ Reilly, SD Enriquez, AE Scott, BL AF Neu, Mary P. Gaunt, Andrew J. Reilly, Sean D. Enriquez, Alejandro E. Scott, Brian L. TI INOR 1088-Plutonium coordination and covalency comparisons in An(III)/Ln(III) complexes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Neu, Mary P.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Enriquez, Alejandro E.] Los Alamos Natl Lab, Div Chem, C SIC, Los Alamos, NM 87545 USA. EM mneu@lanl.gov; sreilly@lanl.gov; bscott@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1088-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106515 ER PT J AU Neu, MP AF Neu, Mary P. TI INOR 117-Advances in plutonium coordination complexes, bioinorganic chemistry, and potential separations agents SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Neu, Mary P.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. EM mneu@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 117-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105829 ER PT J AU Neumark, DM AF Neumark, Daniel M. TI PHYS 224-Probing chemical dynamics with negative ions SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Neumark, Daniel M.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Neumark, Daniel M.] Univ Calif Berkeley, Div Chem Sci, Berkeley, CA 94720 USA. [Neumark, Daniel M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM dneumark@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 224-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108632 ER PT J AU Nimlos, M Crowley, MF Himmel, ME Cleary, JM Brady, JW Matthews, JF Zhong, LH Brooks, CL Walker, RC AF Nimlos, Mark Crowley, Michael F. Himmel, Michael E. Cleary, Joseph M. Brady, John W. Matthews, James F. Zhong, Linghao Brooks, Charles L., III Walker, Ross C. TI CELL 234-Energetics of rearrangement of Family 1 carbohydrate-binding modules SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Nimlos, Mark] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Brady, John W.; Matthews, James F.] Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA. [Zhong, Linghao] Penn State Univ, Mt Alto, PA 17225 USA. [Brooks, Charles L., III] Scripps Res Inst, TPC6, Dept Mol Biol, La Jolla, CA 92093 USA. [Walker, Ross C.] Univ Calif San Diego, San Diego Supercomp Ctr, La Jolla, CA 92093 USA. EM mark_nimlos@nrel.gov; michael_crowley@nrel.gov; mike_himmel@nrel.gov; mike_cleary@nrel.gov; jwb7@cornell.edu; jfm17@cornell.edu; luz4@psu.edu; brooks@scripps.edu; rcw@sdsc.edu RI crowley, michael/A-4852-2013 OI crowley, michael/0000-0001-5163-9398 NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 234-CELL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101388 ER PT J AU Nimlos, MR Pilath, HM Johnson, DK Qian, XH Dong, HT Himmel, ME AF Nimlos, Mark R. Pilath, Heidi M. Johnson, David K. Qian, Xianghong Dong, Haitao Himmel, Michael E. TI FUEL 179-Kinetics of xylose reversion reactions during acid pretreatment SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Johnson, David K.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Qian, Xianghong; Dong, Haitao] Colorado State Univ, Dept Mech Engn, Ft Collins, CO 80523 USA. EM mark_nimlos@nrel.gov; Heidi_Pilath@nrel.gov; David_Johnson@nrel.gov; xhqian@engr.colostate.edu; xhqian@engr.colostate.edu; mike_himmel@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 179-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104787 ER PT J AU Nitsche, H AF Nitsche, Heino TI NUCL 9-Chemistry and physics of the heaviest elements at UC Berkeley and LBNL: An overview SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Nitsche, Heino] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Nitsche, Heino] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 9-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107453 ER PT J AU Nozik, AJ Ellingson, RJ Beard, MC Luther, J Johnson, JC Law, MD Song, Q AF Nozik, Arthur J. Ellingson, Randy J. Beard, Matthew C. Luther, Joseph Johnson, Justin C. Law, Matthew D. Song, Qing TI PHYS 210-Multiple exciton generation in semiconductor quantum dots and applications to third generation solar photon conversion SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Beard, Matthew C.; Luther, Joseph; Johnson, Justin C.] NREL, Ctr Basic Sci, Golden, CO 80401 USA. EM anozik@nrel.gov; matthew_beard@nrel.gov; joseph_luther@nrel.gov RI Ellingson, Randy/H-3424-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 210-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108852 ER PT J AU O'Loughlin, EJ Gorski, CA Cook, RE Scherer, MM AF O'Loughlin, Edward J. Gorski, Christopher A. Cook, Russell E. Scherer, Michelle M. TI GEOC 173-Electron donor effects on Fe(II)-bearing secondary mineral formation resulting from the bioreduction of lepidocrocite SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [O'Loughlin, Edward J.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Gorski, Christopher A.; Scherer, Michelle M.] Univ Iowa, Seamans Ctr 4015, Iowa City, IA 52242 USA. [Cook, Russell E.] Argonne Natl Lab, Ctr Electron Microscopy, Argonne, IL 60439 USA. EM oloughlin@anl.gov; michelle-scherer@uiowa.edu; recook@anl.gov; michelle-scherer@uiowa.edu NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 173-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105061 ER PT J AU Oblozinsky, P AF Oblozinsky, Pavel TI NUCL 83-Neutron cross section covariances for GNEP SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Oblozinsky, Pavel] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA. EM oblozinsky@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 83-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107348 ER PT J AU Oliveri, AF Buckley, E Borgardt, J Kouzes, RT Seifert, A Siciliano, ER Windsor, L AF Oliveri, Anna F. Buckley, Elise Borgardt, James Kouzes, Richard T. Seifert, Allen Siciliano, Edward R. Windsor, Lindsay TI CHED 955-Combating nuisance alarms caused by the "ship effect" in helium 3 based neutron detection radiation portal monitors SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Oliveri, Anna F.] Juniata Coll, Dept Chem, Huntingdon, PA 16652 USA. [Buckley, Elise; Borgardt, James] Juniata Coll, Dept Phys, Huntingdon, PA 16652 USA. [Kouzes, Richard T.; Seifert, Allen; Siciliano, Edward R.; Windsor, Lindsay] Pacific NW Natl Lab, Richland, WA 99352 USA. EM oliveaf05@juniata.edu; richard.kouzes@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 955-CHED PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775102091 ER PT J AU Onorato, RM Johnson, JC Yang, PD Saykally, RJ AF Onorato, Robert M. Johnson, Justin C. Yang, Peidong Saykally, Richard J. TI PHYS 209-Single nanowire lasers: Toward a continuously tunable design SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Onorato, Robert M.; Yang, Peidong; Saykally, Richard J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Onorato, Robert M.; Saykally, Richard J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Johnson, Justin C.] Natl Renewable Energy Lab, Ctr Basic Sci, Golden, CO 80401 USA. [Yang, Peidong] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM ronorato@berkeley.edu; p_yang@berkeley.edu; saykally@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 209-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109378 ER PT J AU Osborn, DL Selby, TM Taatjes, CA Meloni, G Fahr, A Greenwald, EE Fabien, G Leone, SR AF Osborn, David L. Selby, Talitha M. Taatjes, Craig A. Meloni, Giovanni Fahr, Askar Greenwald, Erin E. Fabien, Goulay Leone, Stephen R. TI PHYS 310-The reactions of small resonantly-stabilized free radicals in molecular weight growth chemistry SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Osborn, David L.; Selby, Talitha M.; Taatjes, Craig A.; Meloni, Giovanni] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA. [Fahr, Askar] Howard Univ, Dept Chem, Washington, DC 20059 USA. [Greenwald, Erin E.] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA. [Fabien, Goulay; Leone, Stephen R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem & Phys, Berkeley, CA 94720 USA. EM dlosbor@sandia.gov; tselby@sandia.gov; cataatj@ca.sandia.gov; gmeloni@sandia.gov; afahr@msrce.howard.edu; srl@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 310-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109212 ER PT J AU Ottley, LAM Boyle, TJ Yang, P Rodriguez, MA Sanchez, M Sewell, RM Hoppe, S Raymond, R AF Ottley, Leigh Anna M. Boyle, Timothy J. Yang, Pin Rodriguez, Mark A. Sanchez, Margret Sewell, Robin M. Hoppe, Sarah Raymond, Rebecca TI INOR 676-Synthesis and characterization of lanthanum halide solvated compounds for use in scintilators, PLnZT, and bioimaging SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Ottley, Leigh Anna M.; Boyle, Timothy J.; Yang, Pin; Rodriguez, Mark A.; Sanchez, Margret; Sewell, Robin M.; Hoppe, Sarah; Raymond, Rebecca] Sandia Natl Labs, Adv Mat Lab, Albuquerque, NM 87106 USA. EM laottle@sandia.gov; tjboyle@Sandia.gov; rmsewel@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 676-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105733 ER PT J AU Ozensoy, E Herling, D Szanyi, J AF Ozensoy, Emrah Herling, D. Szanyi, Janos TI COLL 197-NO2 and dimethyl ether (DME) reaction on Al2O3 as a catalyst SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Ozensoy, Emrah] Bilkent Univ, Dept Chem, TR-06460 Ankara, Turkey. [Ozensoy, Emrah] Bilkent Univ, Inst Mat Sci & Nanotechnol, TR-06460 Ankara, Turkey. [Herling, D.] PNNL, Div Mat, Richland, WA 99352 USA. [Szanyi, Janos] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA. EM ozensoy@fen.bilkent.edu.tr; darrell.herling@pnl.gov; janos.szanyi@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 197-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103735 ER PT J AU Padmaperuma, AB Koech, PK Cai, H Male, JL Sapochak, LS Burrows, PE AF Padmaperuma, Asanga B. Koech, Phillip K. Cai, Harry Male, Jonathan L. Sapochak, Linda S. Burrows, Paul E. TI ORGN 497-New multifunctional host and emitter materials containing carbazole as the building block for improved charge balance in blue OLEDs SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Padmaperuma, Asanga B.; Koech, Phillip K.; Cai, Harry; Male, Jonathan L.; Sapochak, Linda S.; Burrows, Paul E.] Pacific NW Natl Lab, Dept Mat Chem & Surface Res, Richland, WA 99354 USA. EM asanga.padmaperuma@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 497-ORGN PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108139 ER PT J AU Palmiotti, G Salvatores, M Alberti, G AF Palmiotti, Giuseppe Salvatores, Massimo Alberti, Gerardo TI NUCL 79-Nuclear data needs for the GNEP program SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Palmiotti, Giuseppe] Idaho Natl Lab, NSE Div, Idaho Falls, ID 83415 USA. [Salvatores, Massimo] CEA, Cadarache, France. [Alberti, Gerardo] Argonne Natl Lab, NE Div, Argonne, IL 60439 USA. EM Giuseppe.Palmiotti@inl.gov; massimo.salvatores@cea.fr; aliberti@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 79-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107381 ER PT J AU Panchal, CB Ljubicic, B AF Panchal, C. B. Ljubicic, Blazo TI ACSAICHE 99129-Design approach for mitigating fouling of reboilers and F/E exchangers SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Panchal, C. B.] Argonne Natl Lab, Chicago, IL 60439 USA. [Ljubicic, Blazo] Koch Heat Transfer Co, Houston, TX 77041 USA. EM Blazo.Ljubicic@khtsrl.com NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 99129-ACSA PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100075 ER PT J AU Park, C Fenter, P Sturchio, NC Nagy, KL AF Park, Changyong Fenter, Paul Sturchio, Neil C. Nagy, Kathryn L. TI GEOC 132-Differences in adsorption mechanisms for Rb+ and Sr2+ at the mica-water interface identified by adsorption isotherms measured with resonant anomalous X-ray reflectivity SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Park, Changyong; Fenter, Paul] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Sturchio, Neil C.; Nagy, Kathryn L.] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA. EM cypark@anl.gov; fenter@anl.gov; klnagy@uic.edu RI Park, Changyong/A-8544-2008 OI Park, Changyong/0000-0002-3363-5788 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 132-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105024 ER PT J AU Parkinson, BA Spitler, MT Lu, YF AF Parkinson, Bruce A. Spitler, Mark T. Lu, Yunfeng TI COLL 457-Dye adsorption on single crystal oxide semiconductors as a model for dye sensitized solar cells SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Parkinson, Bruce A.; Lu, Yunfeng] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA. [Spitler, Mark T.] Solar Energy Res Inst, Golden, CO 80402 USA. EM Bruce.Parkinson@colostate.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 457-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103705 ER PT J AU Parkinson, GS Dohnalek, Z Smith, RS Kay, B AF Parkinson, Gareth S. Dohnalek, Zdenek Smith, R. Scott Kay, Bruce TI COLL 356-Reactivity of model iron and iron oxide surfaces and nanoparticles with chlorinated hydrocarbons SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Parkinson, Gareth S.; Dohnalek, Zdenek; Smith, R. Scott; Kay, Bruce] Pacific NW Natl Lab, Richland, WA 99352 USA. EM Gareth.Parkinson@pnl.gov; zdenek.dohnalek@pnl.gov; zorro@pnl.gov; bruce.kay@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 356-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103535 ER PT J AU Patananan, AN Edwards, JV Goheen, SC AF Patananan, Alexander N. Edwards, J. Vincent Goheen, Steven C. TI CELL 159-Comparison of two protein binding models to explain the surface-mediated unfolding kinetics of globular proteins on cellulose and polymer beads SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Patananan, Alexander N.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Edwards, J. Vincent] USDA ARS, So Reg Res Ctr, New Orleans, LA 70124 USA. [Goheen, Steven C.] Battelle NW, Chem & Biol Sci, Richland, WA 99352 USA. EM uclageneticist@gmail.com; vedwards@srrc.ars.usda.gov; steve.goheen@pnl.gov NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 159-CELL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101192 ER PT J AU Patterson, MJ Lightstone, JM White, MG AF Patterson, Melissa J. Lightstone, James M. White, Michael G. TI PHYS 366-Characterization and reactivity of Mo6S8+ on Au (111) via size-selected deposition SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Patterson, Melissa J.; Lightstone, James M.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [White, Michael G.] Brookhaven Natl Lab, Dept Chem, Stony Brook, NY 11974 USA. [White, Michael G.] SUNY Stony Brook, Stony Brook, NY 11974 USA. EM mpatterson@bnl.gov; lightstone@bnl.gov; mgwhite@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 366-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109805 ER PT J AU Paxton, WF O'Hara, MJ Peper, SM Petersen, SL Grate, JW AF Paxton, Walter F. O'Hara, Matthew J. Peper, Shane M. Petersen, Steven L. Grate, Jay W. TI ANYL 126-Acoustic streaming for accelerated microvolume batch ion exchange SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [O'Hara, Matthew J.] Pacific NW Natl Lab, Environm Technol Directorate, Richland, WA 99352 USA. [Grate, Jay W.] Pacific NW Natl Lab, Fundamental Sci Directorate, Richland, WA 99352 USA. EM walter.paxton@pnl.gov; matthew.ohara@pnl.gov; shane.peper@pnl.gov; jwgrate@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 126-ANYL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100506 ER PT J AU Peng, HS Zhu, YT AF Peng, Huisheng Zhu, Yuntian TI PMSE 325-Novel synthesis to polymer/carbon nanotube composites SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Peng, Huisheng] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Zhu, Yuntian] N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 325-PMSE PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109039 ER PT J AU Peng, HS AF Peng, Huisheng TI POLY 477-A novel synthesis to responsive polydiacetylenic aggregates SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA C1 [Peng, Huisheng] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 477-POLY PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519XJ UT WOS:000271802800144 ER PT J AU Penn, RL Erbs, JJ Berquo, TS Gilbert, B Banerjee, S AF Penn, R. Lee Erbs, Jasmine J. Berquo, Thelma S. Gilbert, Benjamin Banerjee, Subir TI COLL 387-Size dependent reductive dissolution of ferrihydrite nanoparticles SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Penn, R. Lee; Erbs, Jasmine J.] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA. [Berquo, Thelma S.] Univ Minnesota, Inst Rock Magnetism, Minneapolis, MN 55455 USA. [Gilbert, Benjamin] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Banerjee, Subir] Univ Minnesota, Dept Geol & Geophys, Minneapolis, MN 55455 USA. EM penn@chem.umn.edu; erbs@chem.umn.edu; berqu013@umn.edu; BGilbert@lbl.gov; banerjee@umn.edu RI Gilbert, Benjamin/E-3182-2010 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 387-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103784 ER PT J AU Pereira, C Vandegrift, GF Regalbuto, MC Bakel, AJ Laidler, JJ AF Pereira, Candido Vandegrift, George F. Regalbuto, Monica C. Bakel, Allen J. Laidler, James J. TI Lab-scale demonstrations of UREX plus processes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Pereira, Candido; Vandegrift, George F.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Regalbuto, Monica C.; Bakel, Allen J.] Argonne Natl Lab, Div Chem Engn, Argonne, IL 60439 USA. [Laidler, James J.] Argonne Natl Lab, Appl Sci & Technol Directorate, Argonne, IL 60439 USA. EM pereira@anl.gov; bakel@cmt.anl.gov; laidler@cmt.anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 112-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107424 ER PT J AU Perry, DL Olson, A Topp, E Ma, ZX Mao, SS AF Perry, Dale L. Olson, Andrew Topp, Erik Ma, Zhixun Mao, Samuel S. TI I&EC 83-Auger parameters applied to radiation detection materials SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Perry, Dale L.; Ma, Zhixun; Mao, Samuel S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Olson, Andrew] Carleton Coll, Northfield, MN 55057 USA. [Topp, Erik] Univ Calif Berkeley, Coll Chem & Chem Engn, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 83-IEC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105326 ER PT J AU Perry, DL Olson, A Topp, E Ma, ZX Mao, SS AF Perry, Dale L. Olson, Andrew Topp, Erik Ma, Zhixun Mao, Samuel S. TI I&EC 84-X-ray photoelectron and Auger studies of rare earth-doped telluride semiconductors SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Perry, Dale L.; Ma, Zhixun; Mao, Samuel S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Olson, Andrew] Carleton Coll, Northfield, MN 55057 USA. [Topp, Erik] Univ Calif Berkeley, Coll Chem & Chem Engn, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 84-IEC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105319 ER PT J AU Peterman, DR Riddle, CL Greenhalgh, MR Law, JD Meikrantz, DH Todd, TA AF Peterman, Dean R. Riddle, Catherine L. Greenhalgh, Mitchell R. Law, Jack D. Meikrantz, David H. Todd, Terry A. TI NUCL 114-Separation of cesium and strontium from spent nuclear fuel using the Fission Product Extraction process SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Peterman, Dean R.; Riddle, Catherine L.; Greenhalgh, Mitchell R.; Law, Jack D.; Meikrantz, David H.; Todd, Terry A.] Idaho Natl Lab, Aqueous Separat & Radiochem Dept, Idaho Falls, ID 83415 USA. EM dean.peterman@inl.gov; catherine.riddle@inl.gov; meikdh@inel.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 114-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107350 ER PT J AU Peterson, DS Armenta, CE Montoya, VM AF Peterson, Dominic S. Armenta, Claudine E. Montoya, Velma M. TI NUCL 98-Development of chromatographic separation methods of actinides for bioassay applications SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Peterson, Dominic S.; Armenta, Claudine E.; Montoya, Velma M.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM dominicp@lanl.gov; carmenta@lanl.gov; vmontoya@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 98-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107382 ER PT J AU Peterson, ES Martellaro, PJ Moore, GA AF Peterson, Eric S. Martellaro, Philip J. Moore, Glenn A. TI FUEL 41-Nanoscale metal sulfides for mercury sorption SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Peterson, Eric S.; Martellaro, Philip J.; Moore, Glenn A.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 41-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104757 ER PT J AU Peterson, ES Okano, T AF Peterson, Eric S. Okano, Terumi TI FUEL 52-Mercury-bromine oxidation kinetics SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Peterson, Eric S.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Okano, Terumi] Worcester Polytech Inst, Dept Chem Engn, Worcester, MA 01609 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 52-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104756 ER PT J AU Petitto, SC Tanwar, K Ghose, SK Eng, P Trainor, TP AF Petitto, Sarah C. Tanwar, Kunaljeet Ghose, Sanjit K. Eng, Peter Trainor, Thomas P. TI COLL 274-Surface structure and composition of oxidized and reduced hydrated magnetite (111) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Petitto, Sarah C.; Tanwar, Kunaljeet; Trainor, Thomas P.] Univ Alaska, Dept Chem & Biochem, Fairbanks, AK 99775 USA. [Ghose, Sanjit K.; Eng, Peter] Univ Chicago, Argonne Natl Lab, GSECARS, Argonne, IL 60439 USA. EM scpetitto@hotmail.com; ftkjt@uaf.edu; ghose@cars.uchicago.edu; eng@cars.uchicago.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 274-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103376 ER PT J AU Phair, L Moretto, L AF Phair, Larry Moretto, Luciano TI The fission barrier landscape SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Phair, Larry; Moretto, Luciano] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. EM LWPhair@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 31-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107427 ER PT J AU Pitcher, EJ AF Pitcher, Eric J. TI NUCL 84-Materials Test Station: An accelerator-driven fast spectrum fuels irradiation facility SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Pitcher, Eric J.] Los Alamos Natl Lab, LANSCE DO, Los Alamos, NM 87545 USA. EM pitcher@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 84-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107364 ER PT J AU Pivovar, BS AF Pivovar, Bryan S. TI POLY 310-Wholly aromatic polymer electrolytes in fuel cell applications SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA C1 [Pivovar, Bryan S.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 310-POLY PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519XJ UT WOS:000271802800372 ER PT J AU Plionis, AA Gonzales, ER Armenta, CE Peterson, DS AF Plionis, Alexander A. Gonzales, Edward R. Armenta, Claudine E. Peterson, Dominic S. TI Analysis of trace radionuclides in bulk silver metal from Rocky Flats SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Plionis, Alexander A.; Gonzales, Edward R.; Armenta, Claudine E.; Peterson, Dominic S.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM aplionis@lanl.gov; carmenta@lanl.gov; dominicp@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 107-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107423 ER PT J AU Pluth, MD Johnson, DW Davis, AV Szigethy, G Teat, SJ Oliver, AG Bergman, R Raymond, KN AF Pluth, Michael D. Johnson, Darren W. Davis, Anna V. Szigethy, Geza Teat, Simon J. Oliver, Allen G. Bergman, Robert Raymond, Kenneth N. TI INOR 234-Analysis of host deformation upon guest encapsulation in a highly-charged supramolecular assembly SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Pluth, Michael D.; Szigethy, Geza; Bergman, Robert; Raymond, Kenneth N.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Johnson, Darren W.] Univ Oregon, Dept Chem, Eugene, OR 97403 USA. [Johnson, Darren W.] Univ Oregon, Inst Mat Sci, Eugene, OR 97403 USA. [Davis, Anna V.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. [Teat, Simon J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Oliver, Allen G.] Univ Calif Santa Cruz, Dept Chem & Biochem, Santa Cruz, CA 95064 USA. EM pluth@berkeley.edu; dwj@uoregon.edu; a-davis9@northwestern.edu; szigethy@berkeley.edu; bergman@cchem.berkeley.edu; raymond@socrates.berkeley.edu RI Pluth, Michael/A-7222-2012 OI Pluth, Michael/0000-0003-3604-653X NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 234-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106058 ER PT J AU Pohl, PI AF Pohl, Phillip Isabio TI AGFD 140-CARVER+Shock: Food defense software development, application and technical needs SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Pohl, Phillip Isabio] Sandia Natl Labs, Albuquerque, NM 87185 USA. EM pipohl@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 140-AGFD PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100273 ER PT J AU Poineau, F Rodriguez, EE Sattelberger, AP Czerwinski, K AF Poineau, Frederic Rodriguez, Efrain E. Sattelberger, Alfred P. Czerwinski, Ken TI INOR 633-Synthetic chemistry of high valence technetium oxides SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Poineau, Frederic] Univ Nevada, Harry Reid Ctr Environm Studies, Las Vegas, NV 89154 USA. [Rodriguez, Efrain E.] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA. [Sattelberger, Alfred P.] Argonne Natl Lab, Phys Sci Directorate, Argonne, IL 60439 USA. [Czerwinski, Ken] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. [Czerwinski, Ken] Univ Nevada, Harry Reid Ctr, Las Vegas, NV 89154 USA. EM fredericpoineau2001@yahoo.fr; efrain@mrl.ucsb.edu; asattelberger@anl.gov; czerwin2@unlv.nevada.edu NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 633-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106422 ER PT J AU Pons, V Baker, RT Camaioni, DM Li, J AF Pons, Vincent Baker, R. Tom Camaioni, Donald M. Li, Jun TI INOR 595-Spit it out, already: Mechanistic studies of metal-catalyzed dehydrogenation of ammonia-borane SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Pons, Vincent; Baker, R. Tom] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Camaioni, Donald M.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. [Li, Jun] Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA. EM vpons@lanl.gov; bakertom@lanl.gov; donald.camaioni@pnl.gov; jun.li@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 595-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105709 ER PT J AU Powell, BA Kersting, AB Zavarin, M Zhao, PH AF Powell, Brian A. Kersting, Annie B. Zavarin, Mavrik Zhao, Pihong TI GEOC 225-Development of a composite surface complexation model describing plutonium sorption to smectite SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Powell, Brian A.; Kersting, Annie B.; Zavarin, Mavrik; Zhao, Pihong] Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Livermore, CA 94550 USA. EM powell37@llnl.gov; kersting1@llnl.gov; zavarin1@llnl.gov; zhao1@llnl.gov RI Powell, Brian /C-7640-2011 OI Powell, Brian /0000-0003-0423-0180 NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 225-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105098 ER PT J AU Prendergast, D Galli, G Schwartz, CP Uejio, J Saykally, RJ AF Prendergast, David Galli, Giulia Schwartz, Craig P. Uejio, Janel Saykally, Richard J. TI PHYS 184-First principles X-ray absorption spectroscopy of aqueous systems SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Prendergast, David] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. [Galli, Giulia] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA. [Schwartz, Craig P.; Uejio, Janel; Saykally, Richard J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Saykally, Richard J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM dgprendergast@lbl.gov; gagalli@ucdavis.edu; saykally@berkeley.edu RI Prendergast, David/E-4437-2010 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 184-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108745 ER PT J AU Presto, AA Granite, EJ AF Presto, Albert A. Granite, Evan J. TI FUEL 34-Noble metal catalysts for oxidation of mercury in flue gas SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Presto, Albert A.] Carnegie Mellon Univ, Air Qual Lab, Pittsburgh, PA 15213 USA. [Granite, Evan J.] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM evan.granite@netl.doe.gov NR 0 TC 0 Z9 0 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 34-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104826 ER PT J AU Qafoku, NP Dresel, PE Ainsworth, CC Mattigod, SV McKinley, JP Heald, SM Phillips, JL Fruchter, JS AF Qafoku, Nikolla P. Dresel, P. Evan Ainsworth, Calvin C. Mattigod, Shas V. McKinley, Jim P. Heald, Steve M. Phillips, Jerry L. Fruchter, John S. TI GEOC 176-A macroscopic and spectroscopic investigation of Cr(VI) sorption and desorption during transport through sediments under slightly alkaline and oxic conditions SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Qafoku, Nikolla P.; Dresel, P. Evan; Ainsworth, Calvin C.; Mattigod, Shas V.; McKinley, Jim P.; Phillips, Jerry L.; Fruchter, John S.] Pacific NW Natl Lab, Environm Dynam & Simulat Grp, Richland, WA 99352 USA. [Heald, Steve M.] Argonne Natl Lab, Argonne, IL 60439 USA. EM nik.qafoku@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 176-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105147 ER PT J AU Qafoku, NP Kukkadapu, RK Icenhower, JP Yabusaki, S Resch, CT Arey, BW Long, PE AF Qafoku, Nikolla P. Kukkadapu, Ravi K. Icenhower, Jonathan P. Yabusaki, Steve Resch, C. T. Arey, Bruce W. Long, Phillip E. TI GEOC 108-Macroscopic, microscopic and spectroscopic investigation of soil minerals hosting uranium in contaminated sediments from Rifle, CO SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Qafoku, Nikolla P.] Pacific NW Natl Lab, Environm Dynam & Simulat Grp, Richland, WA 99352 USA. EM nik.qafoku@pnl.gov; Ravi.Kukkadapu@pnl.gov; jonathan.icenhower@pnl.gov; tom.resch@pnl.gov RI Icenhower, Jonathan/E-8523-2011 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 108-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105143 ER PT J AU Radford, D AF Radford, David TI NUCL 3-GRETINA: A gamma-ray tracking array for nuclear structure studies SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Radford, David] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. EM radforddc@ornl.gov RI radford, David/A-3928-2015 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 3-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107463 ER PT J AU Rao, LF AF Rao, Linfeng TI NUCL 72-Redox kinetics and mechanism: Understanding the reduction of Np(VI) by natural organic compounds at the molecular level SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Rao, Linfeng] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM lrao@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 72-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107378 ER PT J AU Reichardt, TA Headrick, JM Hoops, AA Kelley, JA Koplow, JP Moore, SW Kliner, DAV AF Reichardt, Thomas A. Headrick, Jeffrey M. Hoops, Alexandra A. Kelley, Jude A. Koplow, Jeffrey P. Moore, Sean W. Kliner, Dahv A. V. TI FUEL 17-Development of a fieldable real-time mercuric chloride monitor using laser photofragment emission SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Reichardt, Thomas A.; Headrick, Jeffrey M.; Hoops, Alexandra A.; Koplow, Jeffrey P.; Moore, Sean W.; Kliner, Dahv A. V.] Sandia Natl Labs, Livermore, CA 94551 USA. [Kelley, Jude A.] Coll Holy Cross, Dept Chem, Worcester, MA 01610 USA. EM tareich@sandia.gov; jmheadr@sandia.gov; aahoops@sandia.gov; jkelley@holycross.edu; jkoplow@sandia.gov; seamoor@sandia.gov; dakline@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 17-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104737 ER PT J AU Robinson, DB Chae, WS Braun, PV Simmons, BA AF Robinson, David B. Chae, Weon-Sik Braun, Paul V. Simmons, Blake A. TI COLL 487-Electrochemical fabrication and characterization of hierarchically porous supercapacitors SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Robinson, David B.; Simmons, Blake A.] Sandia Natl Labs, Energy Syst Dept, Livermore, CA 94551 USA. [Chae, Weon-Sik; Braun, Paul V.] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA. EM drobins@sandia.gov; wschae@uiuc.edu; pbraun@uiuc.edu; basimmo@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 487-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103731 ER PT J AU Rodriguez, EE Poineau, F Llobet, A Czerwinski, K Cheetham, AK AF Rodriguez, Efrain E. Poineau, Frederic Llobet, A. Czerwinski, Ken Cheetham, Anthony K. TI INOR 1064-Synthesis of new ternary technetium oxides SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Rodriguez, Efrain E.; Cheetham, Anthony K.] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA. [Poineau, Frederic] Univ Nevada, Harry Reid Ctr Environm Studies, Las Vegas, NV 89154 USA. [Llobet, A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Czerwinski, Ken] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA. [Czerwinski, Ken] Univ Nevada, Harry Reid Ctr, Las Vegas, NV 89154 USA. EM efrain@mrl.ucsb.edu; fredericpoineau2001@yahoo.fr; allobet@lanl.gov; czerwin2@unlv.nevada.edu; cheetham@mrl.ucsb.edu RI Llobet, Anna/B-1672-2010; Lujan Center, LANL/G-4896-2012 NR 0 TC 0 Z9 0 U1 0 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1064-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106466 ER PT J AU Roskop, L Gordon, MS AF Roskop, Luke Gordon, Mark S. TI COMP 80-Pushing the limits of MCSCF SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Roskop, Luke] Iowa State Univ, Dept Chem, Ames, IA 50010 USA. [Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM luke@si.msg.chem.iastate.edu; mark@si.msg.chem.iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 80-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104147 ER PT J AU Roy, LE Prodan, ID Peralta, JE Scuseria, GE Martin, RL AF Roy, Lindsay E. Prodan, Ionut D. Peralta, Juan E. Scuseria, Gustavo E. Martin, Richard L. TI INOR 670-Covalency in the actinide dioxides: Systematic study of the electronic properties using screened hybrid density functional theory SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Roy, Lindsay E.; Martin, Richard L.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Prodan, Ionut D.; Scuseria, Gustavo E.] Rice Univ, Dept Chem, Houston, TX 77005 USA. [Peralta, Juan E.] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA. EM lroy@lanl.gov; juan.peralta@cmich.edu; guscus@rice.edu; rlmartin@lanl.gov NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 670-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106103 ER PT J AU Rumbles, G Ferguson, AJ Kopidakis, N Ai, X Heben, MJ Blackburn, JL AF Rumbles, Garry Ferguson, Andrew J. Kopidakis, Nikos Ai, Xin Heben, Michael J. Blackburn, Jeff L. TI COLL 368-Studying photoinduced electron transfer at nanostructured interfaces using transient microwave conductivity SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Rumbles, Garry; Ferguson, Andrew J.; Kopidakis, Nikos; Ai, Xin] Natl Renewable Energy Lab, Chem & Biosci Ctr, Golden, CO 80401 USA. [Heben, Michael J.; Blackburn, Jeff L.] Natl Renewable Energy Lab, Ctr Mat Sci, Golden, CO 80305 USA. EM garry_rumbles@nrel.gov; andrew_ferguson@nrel.gov; nikos_kopidakis@nrel.gov; xin_ai@nrel.gov; michael_heben@nrel.gov; Jeffrey_Blackburn@nrel.gov RI Blackburn, Jeffrey/D-7344-2012; Kopidakis, Nikos/N-4777-2015 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 368-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103506 ER PT J AU Ryder, O McIntire, TM Lea, AS Gassman, PL Finlayson-Pitts, BJ AF Ryder, Olivia McIntire, Theresa M. Lea, A. S. Gassman, Paul L. Finlayson-Pitts, Barbara J. TI COLL 272-Ozone oxidation of self-assembled monolayers on silicon oxide thin layers on silicon and zinc selenide surfaces SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Ryder, Olivia; McIntire, Theresa M.; Finlayson-Pitts, Barbara J.] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA. [Lea, A. S.; Gassman, Paul L.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. EM oryder@uci.edu; mcintire@uci.edu; bjfinlay@uci.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 272-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103557 ER PT J AU Sakellariou, G Driva, P Baskaran, D Mays, JW AF Sakellariou, George Driva, Paraskevi Baskaran, Durairaj Mays, Jimmy W. TI POLY 502-Controlled functional nanoparticles from diblock copolymer micelles SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA C1 [Sakellariou, George] Univ Athens, Dept Chem, Athens 15771, Greece. [Driva, Paraskevi; Mays, Jimmy W.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Baskaran, Durairaj] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Mays, Jimmy W.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. EM gsakellariou@chem.uoa.gr; baskaran@ion.chem.utk.edu; jimmymays@utk.edu RI Durairaj, Baskaran/C-3692-2009 OI Durairaj, Baskaran/0000-0002-6886-5604 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 502-POLY PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519XJ UT WOS:000271802800469 ER PT J AU Salmeron, M AF Salmeron, Miquel TI COLL 109-What determines the wettability of a surface? SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Salmeron, Miquel] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 109-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103760 ER PT J AU Salmeron, M Qi, YB Ogletree, F Hendriksen, B AF Salmeron, Miquel Qi, Yabing Ogletree, Frank Hendriksen, Bas TI COLL 314-Is there an electronic contribution to friction? SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Salmeron, Miquel; Qi, Yabing; Ogletree, Frank; Hendriksen, Bas] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Hendriksen, Bas/B-8427-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 314-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103764 ER PT J AU Sattelberger, AP Baker, RT Li, HB Marshall, CL Janicke, MT Balasubramanian, M AF Sattelberger, Alfred P. Baker, R. Tom Li, Hongbo Marshall, Christopher L. Janicke, Michael T. Balasubramanian, Mahalingam TI INOR 836-Tunable supported organoiridium catalysts for alkane dehydrogenation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Sattelberger, Alfred P.] Argonne Natl Lab, Phys Sci Directorate, Argonne, IL 60439 USA. [Baker, R. Tom; Li, Hongbo; Janicke, Michael T.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Marshall, Christopher L.] Argonne Natl Lab, Div Chem Engn, Argonne, IL 60439 USA. [Balasubramanian, Mahalingam] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM asattelberger@anl.gov; bakertom@lanl.gov; hongbo@lanl.gov; CLMarshall@anl.gov; janicke@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 836-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106393 ER PT J AU Schaller, RD Sykora, M Pietryga, JM Klimov, VI AF Schaller, Richard D. Sykora, Milan Pietryga, Jeffrey M. Klimov, Victor I. TI PHYS 213-Ultrafast response of semiconductor nanocrystals to high-photon energy absorption: Multiexcitons from a single photon SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Klimov, Victor I.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM rdsx@lanl.gov; sykoram@lanl.gov; pietryga@lanl.gov; klimov@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 213-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109213 ER PT J AU Schanze, KS Miller, JR Keller, JR Li, YJ AF Schanze, Kirk S. Miller, John R. Keller, Julia R. Li, Yongjun TI INOR 862-Exciton and charge transport in organometallic materials SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Schanze, Kirk S.; Keller, Julia R.; Li, Yongjun] Univ Florida, Dept Chem, Gainesville, FL 32611 USA. [Schanze, Kirk S.; Keller, Julia R.; Li, Yongjun] Univ Florida, Ctr Macromol Sci & Engn, Gainesville, FL 32611 USA. [Miller, John R.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM kschanze@chem.ufl.edu; jrmiller@bnl.gov; jraymer@ufl.edu; yoli@chem.ufl.edu RI Schanze, Kirk/A-7200-2009 OI Schanze, Kirk/0000-0003-3342-4080 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 862-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105682 ER PT J AU Schlom, DG Ihlefeld, JF Lee, JH Tian, W Heeg, T Kumar, A Podraza, NJ Ke, XL Schiffer, P Chen, LQ Gopalan, V Martin, LW Ramesh, R Guyonnet, J Lichtensteiger, C Triscone, JM Proffit, D Eom, CB Fennie, CJ Kourkoutis, LF Muller, DA Chen, YB Pan, XQ Schubert, J Li, YL Jia, QX Musfeldt, JL Collins, RW Bernhagen, M Velickov, B Uecker, R AF Schlom, Darrell G. Ihlefeld, Jon F. Lee, June H. Tian, Wei Heeg, Tassilo Kumar, Amit Podraza, Nikolas J. Ke, Xianglin Schiffer, Peter Chen, Long-Qing Gopalan, Venkatraman Martin, Lane W. Ramesh, Ramamoorthy Guyonnet, Jill Lichtensteiger, Celine Triscone, Jean-Marc Proffit, Danielle Eom, Chang-Beom Fennie, Craig J. Kourkoutis, Lena Fitting Muller, David A. Chen, Yanbin Pan, Xiaoqing Schubert, Juergen Li, Yulan Jia, Quanxi Musfeldt, Janice L. Collins, Robert W. Bernhagen, Margitta Velickov, Boza Uecker, Reinhard TI INOR 487-Growth of BiFeO3, BiMnO3, and EuTiO3 by MBE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Schlom, Darrell G.; Ihlefeld, Jon F.; Lee, June H.; Tian, Wei; Heeg, Tassilo; Kumar, Amit; Podraza, Nikolas J.; Ke, Xianglin; Schiffer, Peter; Chen, Long-Qing; Gopalan, Venkatraman] Penn State Univ, University Pk, PA 16802 USA. [Martin, Lane W.; Ramesh, Ramamoorthy] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Guyonnet, Jill; Lichtensteiger, Celine; Triscone, Jean-Marc] Univ Geneva, Geneva, Switzerland. [Proffit, Danielle; Eom, Chang-Beom] Univ Wisconsin Madison, Madison, WI USA. [Fennie, Craig J.] Argonne Natl Lab, Argonne, IL 60439 USA. [Kourkoutis, Lena Fitting; Muller, David A.] Cornell Univ, Ithaca, NY USA. [Chen, Yanbin; Pan, Xiaoqing] Univ Michigan, Ann Arbor, MI 48109 USA. [Schubert, Juergen] Forschungszentrum Julich GmbH, Julich, Germany. [Li, Yulan; Jia, Quanxi] Los Alamos Natl Lab, Los Alamos, NM USA. [Musfeldt, Janice L.] Univ Tennessee, Knoxville, TN USA. [Collins, Robert W.] Univ Toledo, Toledo, OH 43606 USA. [Bernhagen, Margitta; Velickov, Boza; Uecker, Reinhard] Inst Kristallzuchtung, Berlin, Germany. EM schlom@ems.psu.edu RI Schiffer, Peter/F-3227-2011; Kumar, Amit/C-9662-2012; Chen, LongQing/I-7536-2012; Eom, Chang-Beom/I-5567-2014 OI Kumar, Amit/0000-0002-1194-5531; Chen, LongQing/0000-0003-3359-3781; NR 0 TC 0 Z9 0 U1 0 U2 13 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 487-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106292 ER PT J AU Schlueter, J Manson, JL AF Schlueter, John Manson, Jamie L. TI INOR 558-Coupling conductivity and magnetism through hydrogen bonds SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Schlueter, John] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Manson, Jamie L.] Eastern Washington Univ, Dept Chem & Biochem, Cheney, WA 99004 USA. EM JASchlueter@anl.gov; jmanson@ewu.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 558-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105735 ER PT J AU Schutz, VL Harris, KS Wilson, CS Duck, JD Chauhan, V Christy, HT Strout, CM Sokoya, M Myers, JA Scott, BL Zehnder, RA AF Schutz, Victor L. Harris, Kenneth S. Wilson, Christopher S. Duck, James D. Chauhan, Varun Christy, Hunter T. Strout, Cameron M. Sokoya, Mofiyinfolu Myers, Jacob A. Scott, Brian L. Zehnder, Ralph A. TI CHED 1225-Structural properties of selected lanthanide mixed ligand complexes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Schutz, Victor L.; Harris, Kenneth S.; Wilson, Christopher S.; Duck, James D.; Chauhan, Varun; Christy, Hunter T.; Strout, Cameron M.; Sokoya, Mofiyinfolu; Zehnder, Ralph A.] Univ Louisiana Monroe, Dept Chem, Monroe, LA 71203 USA. [Myers, Jacob A.] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA. [Scott, Brian L.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM Vicdsp15@yahoo.com; harrisks@tribe.ulm.edu; wilsoncs@tribe.ulm.edu; jdanielduck@gmail.com; Varun_r_chauhan@yahoo.com; Christy_h@bellsouth.net; cmstroud@hotmail.com; sokoyam@tribe.ulm.edu; jmyer28@lsu.edu; bscott@lanl.gov; zehnder@ulm.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1225-CHED PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101788 ER PT J AU Scott, JR Kotler, JM Richardson, CD Hinman, NW McJunkin, TR AF Scott, Jill R. Kotler, J. Michelle Richardson, C. Doc Hinman, Nancy W. McJunkin, Timothy R. TI GEOC 71-GALDI-FTMS as a technique for detecting bioorganic signatures associated with minerals SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Scott, Jill R.; McJunkin, Timothy R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Kotler, J. Michelle; Richardson, C. Doc; Hinman, Nancy W.] Univ Montana, Dept Geosci, Missoula, MT 59812 USA. EM jill.scott@inl.gov; nancy.hinman@umontana.com; timothy.mcjunkin@inl.gov RI McJunkin, Timothy/G-8385-2011 OI McJunkin, Timothy/0000-0002-4987-9170 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 71-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105018 ER PT J AU Scott, JR Dahl, DD McJunkin, TR AF Scott, Jill R. Dahl, David D. McJunkin, Timothy R. TI ANYL 163-FT-ICR-MS cell with linear excitation/detection and no net magnetron motion SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Scott, Jill R.; Dahl, David D.; McJunkin, Timothy R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. EM jill.scott@inl.gov; timothy.mcjunkin@inl.gov RI McJunkin, Timothy/G-8385-2011 OI McJunkin, Timothy/0000-0002-4987-9170 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 163-ANYL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100363 ER PT J AU Sedlacek, AJ Lee, J AF Sedlacek, Arthur J., III Lee, Jeonghoon TI ENVR 123-Measurement of aerosol absorption amplification of coated particles using photothermal interferometry SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Sedlacek, Arthur J., III; Lee, Jeonghoon] Brookhaven Natl Lab, Upton, NY 11973 USA. EM sedlacek@bnl.gov; leej@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 123-ENVR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104498 ER PT J AU Senn, M Echeverria, D Baeza, M Stroud, MA Pannell, KH AF Senn, Mark Echeverria, David Baeza, Mario Stroud, Mary Ann Pannell, Keith H. TI INOR 609-Ferrocenylsilyl derivatives of the actinide extractants (Aryl)-N,N-di-((i)butyl)carbamoylmethylphosphine oxide SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Senn, Mark; Echeverria, David; Baeza, Mario; Pannell, Keith H.] Univ Texas El Paso, Dept Chem, El Paso, TX 79968 USA. [Stroud, Mary Ann] Los Alamos Natl Lab, Actinide Proc Chem Grp, Los Alamos, NM 87545 USA. EM mark.senn@durham.ac.uk; echbv_david@hotmail.com; imbaeza2@miners.utep.edu; mstroud@lanl.gov; kpannell@utep.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 609-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106582 ER PT J AU Shaughnessy, DA Landrum, JH Wilk, PA Moody, KJ Kenneally, JM Stoyer, NJ Henderson, RA Stoyer, MA Wild, JF Haslett, R AF Shaughnessy, Dawn A. Landrum, Jerry H. Wilk, Philip A. Moody, Kenton J. Kenneally, Jacqueline M. Stoyer, Nancy J. Henderson, Roger A. Stoyer, Mark A. Wild, John F. Haslett, Robert TI Radiochemical isolation of dubnium as the decay product of element 115 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wilk, Philip A.] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94551 USA. [Moody, Kenton J.] Lawrence Livermore Natl Lab, AX Div, Livermore, CA 94550 USA. [Kenneally, Jacqueline M.] Lawrence Livermore Natl Lab, Chem & Mat Sci Directorate, Livermore, CA 94551 USA. [Stoyer, Nancy J.; Wild, John F.] LLNL, Chem Biol & Nucl Sci Div, Livermore, CA 94550 USA. [Henderson, Roger A.] LLNL, Chem Mat & Life Sci, Livermore, CA 94551 USA. EM shaughnessy2@llnl.gov; wilk2@llnl.gov; kenneally1@llnl.gov; henderson55@llnl.gov; stoyer1@llnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 24-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107401 ER PT J AU She, XY Kwak, JH Hu, JZ Wang, Y Peden, CHF AF She, Xiaoyan Kwak, Ja Hun Hu, Jianzhi Wang, Yong Peden, Charles H. F. TI PETR 88-Synthesis, characterization and activity of rhenium oxide supported on mesoporous SBA-15 for 2-butanol dehydration SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [She, Xiaoyan; Kwak, Ja Hun; Hu, Jianzhi; Wang, Yong; Peden, Charles H. F.] Pacific NW Natl Lab, Inst Interfacial Catalysis, EMSL, Richland, WA 99352 USA. EM xiaoyan.she@pnl.gov; kwak@pnl.gov; Jianzhi.Hu@pnl.gov; yongwang@pnl.gov; chuck.peden@pnl.gov RI Wang, Yong/C-2344-2013; Kwak, Ja Hun/J-4894-2014 NR 0 TC 0 Z9 0 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 88-PETR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108577 ER PT J AU Shell, MS Ozkan, B Voelz, V Wu, A Dill, KA AF Shell, M. Scott Ozkan, Banu Voelz, Vincent Wu, Albert Dill, Ken A. TI COMP 223-Protein folding using replica exchange and mechanism-based conformational searching SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Shell, M. Scott] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Ozkan, Banu] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. [Voelz, Vincent] Stanford Univ, Dept Chem, Palo Alto, CA 94305 USA. [Wu, Albert] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Dill, Ken A.] Univ Calif San Francisco, Dept Pharmaceut Chem, San Francisco, CA 94143 USA. EM banu.ozkan@asu.edu; vvoelz@stanford.edu; awu@maxwell.ucsf.edu; dil@maxwell.compbio.ucsf.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 223-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104007 ER PT J AU Shen, TY French, AD Langan, P Gnanakaran, G AF Shen, Tongye French, Alfred D. Langan, Paul Gnanakaran, Gnana TI CARB 26-Modeling the properties of cellulose microfibrils SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Shen, Tongye] Los Alamos Natl Labs, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. [French, Alfred D.] USDA, So Reg Res Ctr, New Orleans, LA 70124 USA. [Gnanakaran, Gnana] Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. EM afrench@srrc.ars.usda.gov; langan_paul@lanl.gov; gnana@lanl.gov RI Langan, Paul/N-5237-2015 OI Langan, Paul/0000-0002-0247-3122 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 26-CARB PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101098 ER PT J AU Shevchenko, EV AF Shevchenko, Elena V. TI PMSE 138-Nanoparticle building blocks and their periodic structures SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA ID BINARY NANOPARTICLE SUPERLATTICES; QUANTUM DOTS C1 [Shevchenko, Elena V.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. EM eshevche@gmail.com NR 5 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 138-PMSE PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519XJ UT WOS:000271802800029 ER PT J AU Shin, Y Bae, IT Arey, BW Exarhos, GJ AF Shin, Yongsoon Bae, In-Tae Arey, Bruce W. Exarhos, Gregory J. TI CELL 268-Facile in situ syntheses of mono- and bimetallic nanoparticles on cellulose nanocrystal SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Shin, Yongsoon; Arey, Bruce W.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Bae, In-Tae] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA. [Exarhos, Gregory J.] Pacific NW Natl Lab, Fundamental Sci Div, Richland, WA 99352 USA. EM yongsoon.shin@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 268-CELL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101332 ER PT J AU Shroll, RM Black, GD Palmer, BJ Hase, WL Windus, TL Baidya, S Zhuang, Y AF Shroll, Robert M. Black, Gary D. Palmer, Bruce J. Hase, William L. Windus, Theresa L. Baidya, Sailesh Zhuang, Yu TI COMP 246-Improved software user interfaces for computational prediction of kinetic rate constants SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Shroll, Robert M.] Spectral Sci Inc, Burlington, MA 01803 USA. [Black, Gary D.] Pacific NW Natl Lab, Computat Sci & Math Div, Richland, WA 99352 USA. [Hase, William L.] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA. [Windus, Theresa L.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Baidya, Sailesh; Zhuang, Yu] Texas Tech Univ, Dept Comp Sci, Lubbock, TX 79409 USA. EM rshroll@spectral.com; gary.black@pnl.gov; bruce.palmer@pnl.gov; theresa@fi.ameslab.gov; sailesh.baidya@ttu.edu; zhuang@cs.ttu.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 246-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104063 ER PT J AU Shuh, DK Szigethy, G Gorden, AEV Xu, JD Tyliszczak, T Bradshaw, L Durbin, PW Chang, P Blakely, EA Raymond, KN AF Shuh, David K. Szigethy, Geza Gorden, Anne E. V. Xu, Jide Tyliszczak, Tolek Bradshaw, Liam Durbin, Patricia W. Chang, Polly Blakely, Eleanor A. Raymond, Kenneth N. TI INOR 121-Adventures in actinide coordination chemistry with Raymond ligands SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Shuh, David K.; Tyliszczak, Tolek; Bradshaw, Liam; Durbin, Patricia W.; Raymond, Kenneth N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Szigethy, Geza; Xu, Jide; Raymond, Kenneth N.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Gorden, Anne E. V.] Auburn Univ, Dept Chem & Biochem, Auburn, AL 36849 USA. [Chang, Polly] SRI Int, Biosci Div, Menlo Pk, CA 94025 USA. [Blakely, Eleanor A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Raymond, Kenneth N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Raymond, Kenneth N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. EM DKShuh@lbl.gov; szigethy@berkeley.edu; gordeae@auburn.edu; jide@berkeley.edu; EABlakely@lbl.gov RI Gorden, Anne/D-2477-2011 OI Gorden, Anne/0000-0001-6623-9880 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 121-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106254 ER PT J AU Shukla, N Nigra, M Gellman, AJ Nuhfer, T Matranga, C Veser, G AF Shukla, Nisha Nigra, Michael Gellman, Andrew J. Nuhfer, Tom Matranga, Christopher Veser, G. TI INOR 1023-Synthesis of hexagonally shaped Pt nanoparticles for catalysis SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Shukla, Nisha] Carnegie Mellon Univ, Inst Complex Engineered Syst, Pittsburgh, PA 15213 USA. [Nigra, Michael; Gellman, Andrew J.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. [Matranga, Christopher] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Veser, G.] Univ Pittsburgh, Dept Chem Engn, Pittsburgh, PA 15261 USA. EM nisha@andrew.cmu.edu; christopher.matranga@netl.doe.gov; gveser@engr.pitt.edu RI Matranga, Christopher/E-4741-2015 OI Matranga, Christopher/0000-0001-7082-5938 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1023-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106278 ER PT J AU Singh, AK AF Singh, Anup K. TI I&EC 65-Integrated microfluidic devices for medical diagnostics and studying cell signaling SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Singh, Anup K.] Sandia Natl Labs, Biosyst Res Dept, Livermore, CA 94551 USA. EM aksingh@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 65-IEC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105357 ER PT J AU Singh, DJ Park, CH AF Singh, David J. Park, Chul-Hong TI INOR 492-Design of multiferroic perovskites using A-site size disorder SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Singh, David J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Park, Chul-Hong] Pusan Natl Univ, Res Ctr Dielect & Adv Matter Phys, Pusan 609735, South Korea. EM singhdj@ornl.gov; cpark@pusan.ac.kr RI Singh, David/I-2416-2012 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 492-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105521 ER PT J AU Singh, JP Yueh, FY Zheng, HB Miller, T Zeigler, KE Marra, JC AF Singh, Jagdish P. Yueh, Fang-Yu Zheng, Hongbo Miller, Tracy Zeigler, Kristine E. Marra, James C. TI NUCL 109-Plutonium oxide residue surrogate analysis using Laser Induced Breakdown Spectroscopy SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Singh, Jagdish P.; Yueh, Fang-Yu; Zheng, Hongbo; Miller, Tracy] Mississippi State Univ, Inst Clean Energy Technol, Starkville, MS 39759 USA. [Zeigler, Kristine E.; Marra, James C.] Savannah River Natl Lab, Aiken, SC 29808 USA. EM singh@icet.msstate.edu; yueh@icet.msstate.edu; kristine.zeigler@srs.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 109-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107351 ER PT J AU Sirbuly, DJ Fischer, N Ratto, T Tok, J Noy, A AF Sirbuly, Donald J. Fischer, Nicholas Ratto, Timothy Tok, Jeff Noy, Aleksandr TI PHYS 84-Multifunctional sensors based on subwavelength optical fibers SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Sirbuly, Donald J.; Fischer, Nicholas; Ratto, Timothy; Tok, Jeff; Noy, Aleksandr] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM sirbuly2@llnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 84-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109210 ER PT J AU Slemmons, A Bond, EM Moody, WA Vieira, DJ FitzPatnick, JR Sudowe, R AF Slemmons, Alice Bond, Evelyn M. Moody, W. Allen Vieira, David J. FitzPatnick, John R. Sudowe, Ralf TI NUCL 97-Americium curium separations for nuclear chemistry experiments SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Slemmons, Alice; Bond, Evelyn M.; Moody, W. Allen; Vieira, David J.; FitzPatnick, John R.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Sudowe, Ralf] Univ Nevada, Las Vegas, NV 89154 USA. EM aslemmons@lanl.gov; emoody@lanl.gov; vieira@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 97-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107385 ER PT J AU Slipchenko, LV Gordon, MS AF Slipchenko, Lyudmila V. Gordon, Mark S. TI PHYS 703-Structures and vibrational frequencies of small water-benzene complexes: A quantum chemistry study SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Slipchenko, Lyudmila V.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM lyuda@si.msg.chem.iastate.edu; mark@si.msg.chem.iastate.edu RI Slipchenko, Lyudmila/G-5182-2012 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 703-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109345 ER PT J AU Slowing, II Kapke, PA Goodison, S Lin, VSY AF Slowing, Igor I. Kapke, Paul A. Goodison, Steve Lin, Victor S-Y. TI INOR 493-Antibody-capped mesoporous silica nanoparticles (MSN) for targeting of cancer cells SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Slowing, Igor I.; Lin, Victor S-Y.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Kapke, Paul A.] Iowa State Univ, Off Biotechnol, Hybridoma Facil, Ames, IA 50011 USA. [Goodison, Steve] Univ Florida, Dept Surg, Jacksonville, FL 32209 USA. [Goodison, Steve] Univ Florida, Interdisciplinary Ctr Biotechnol Res, Jacksonville, FL 32209 USA. [Lin, Victor S-Y.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM islowing@iastate.edu; vsylin@iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 493-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106280 ER PT J AU Slowing, II Lin, VSY AF Slowing, Igor I. Lin, Victor S-Y. TI INOR 494-Biocompatibility study of mesoporous silica nanoparticles with red blood cells SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Slowing, Igor I.; Lin, Victor S-Y.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Lin, Victor S-Y.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM islowing@iastate.edu; vsylin@iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 494-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106276 ER PT J AU Smith, T Slipchenko, LV Gordon, MS AF Smith, Toni Slipchenko, Lyudmila V. Gordon, Mark S. TI COMP 66-Stacking and hydrogen bonding: Effective fragment potential modeling of DNA bases SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Smith, Toni; Slipchenko, Lyudmila V.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM toni@iastate.edu; lyuda@si.msg.chem.iastate.edu; mark@si.msg.chem.iastate.edu RI Slipchenko, Lyudmila/G-5182-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 66-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104127 ER PT J AU Smith, T Slipchenko, LV Gordon, MS AF Smith, Toni Slipchenko, Lyudmila V. Gordon, Mark S. TI COMP 78-Dispersion in combined ab initio/effective fragment potential systems SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Smith, Toni; Slipchenko, Lyudmila V.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM toni@iastate.edu; lyuda@si.msg.chem.iastate.edu; mark@si.msg.chem.iastate.edu RI Slipchenko, Lyudmila/G-5182-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 78-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104125 ER PT J AU Soelberg, N Haefner, D Jubin, B AF Soelberg, Nick Haefner, Daryl Jubin, Bob TI NUCL 127-Gaseous fission product emissions control during spent nuclear fuel recycling SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Soelberg, Nick] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Haefner, Daryl] Idaho Natl Lab, Idaho Falls, ID 83415 USA. [Jubin, Bob] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM nsy@inel.gov; daryl.haefner@inl.gov; jubinrt@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 127-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107355 ER PT J AU Sok, S Yoo, S Zahariev, F Gordon, MS AF Sok, Sarom Yoo, Soohaeng Zahariev, Federico Gordon, Mark S. TI PHYS 614-Optical properties in aqueous solution using the TDDFT/EFP1 method SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM ssok1@iastate.edu; soohaeng@si.msg.chem.iastate.edu; federico@si.msg.chem.iastate.edu; mark@si.msg.chem.iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 614-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109265 ER PT J AU Somorjai, GA AF Somorjai, G. A. TI COLL 278-Frontiers of surface chemistry SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Somorjai, G. A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Somorjai, G. A.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM somorjai@socrates.berkeley.edu NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 278-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103838 ER PT J AU Somorjai, GA AF Somorjai, Gabor A. TI COLL 60-Selectivity in catalytic conversion of hydrocarbons by control of metal nanoparticle size (1-10 nm) shape and composition SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Somorjai, Gabor A.] Univ Calif Berkeley, Dept Chem UCB, Berkeley, CA 94720 USA. [Somorjai, Gabor A.] Univ Calif Berkeley, Mat Sci Div LBNL, Berkeley, CA 94720 USA. [Somorjai, Gabor A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM somorjai@socrates.berkeley.edu NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 60-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103423 ER PT J AU Sporleder, D Wilson, DP White, MG AF Sporleder, David Wilson, Daniel P. White, Michael G. TI PHYS 385-Photoinduced desorption of O-2 and photooxidation of organics from TiO2(110) surfaces SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Sporleder, David; Wilson, Daniel P.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11974 USA. [White, Michael G.] Brookhaven Natl Lab, Dept Chem, Stony Brook, NY 11974 USA. EM dsporled@bnl.gov; mgwhite@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 385-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109807 ER PT J AU St Dennis, JE Venkataraman, P John, VT McPherson, G He, JB Jones, CY Obrey, SJ Currier, RP AF St. Dennis, J. E. Venkataraman, Pradeep John, Vijay T. McPherson, Gary He, Jibao Jones, Camille Y. Obrey, Stephen J. Currier, Robert P. TI FUEL 223-Carbons from sugars: Morphology, microstructure and applications to gas storage SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [St. Dennis, J. E.; Venkataraman, Pradeep; John, Vijay T.] Tulane Univ, Dept Chem & Biomol Engn, New Orleans, LA 70118 USA. [McPherson, Gary] Tulane Univ, Dept Chem, New Orleans, LA 70118 USA. [He, Jibao] Tulane Univ, Coordinated Instrumental Facil, New Orleans, LA 70118 USA. [Jones, Camille Y.] Hamilton Coll, Dept Chem, Clinton, NY 13323 USA. [Obrey, Stephen J.; Currier, Robert P.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM jstdenni@tulane.edu; pvenkata@tulane.edu; vijay.John@tulane.edu; garym@tulane.edu; jhe1@tulane.edu; cyjones@hamilton.edu; sobrey@lanl.gov RI VENKATARAMAN, PRADEEP/A-8648-2013; VENKATARAMAN, PRADEEP/P-6058-2014 OI VENKATARAMAN, PRADEEP/0000-0001-9679-229X NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 223-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104633 ER PT J AU Stair, PC Kim, HS AF Stair, Peter C. Kim, Hack-Sung TI PETR 35-The chemical nature of supported vanadium oxide SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Stair, Peter C.; Kim, Hack-Sung] Northwestern Univ, Ctr Catalysis & Surface Sci, Dept Chem, Evanston, IL 60208 USA. [Stair, Peter C.] Argonne Natl Lab, Evanston, IL 60208 USA. EM pstair@northwestern.edu; hskim@northwestern.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 35-PETR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108495 ER PT J AU Stair, PC Feng, H Elam, JW AF Stair, Peter C. Feng, Hao Elam, Jeffrey W. TI COLL 36-Vanadium oxide catalysts in AAO scaffolds SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Stair, Peter C.; Feng, Hao] Northwestern Univ, Ctr Catalysis & Surface Sci, Dept Chem, Evanston, IL 60208 USA. [Stair, Peter C.] Argonne Natl Lab, Evanston, IL 60208 USA. [Elam, Jeffrey W.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA. EM pstair@northwestern.edu; h-feng@northwestern.edu; jelam@anl.gov NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 36-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103594 ER PT J AU Stair, PC AF Stair, Peter C. TI CATL 5-Advanced catalysis for photo- and electro-driven conversion of carbon dioxide and water SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Stair, Peter C.] Northwestern Univ, Ctr Catalysis & Surface Sci, Dept Chem, Evanston, IL 60208 USA. [Stair, Peter C.] Argonne Natl Lab, Evanston, IL 60208 USA. EM pstair@northwestern.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 5-CATL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101154 ER PT J AU Stechel, EB AF Stechel, Ellen B. TI COMSCI 1-Needs and opportunities for the chemical enterprise in energy and the environment SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Stechel, Ellen B.] Sandia Natl Labs, Albuquerque, NM 87123 USA. RI Stechel, Ellen/B-1253-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1-COMSCI PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104269 ER PT J AU Steele, RP DiStasio, RA Head-Gordon, MP AF Steele, Ryan P. DiStasio, Robert A., Jr. Head-Gordon, Martin P. TI PHYS 537-Dual-basis methods: Cation-Pi effects in fullerene systems SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Steele, Ryan P.; DiStasio, Robert A., Jr.; Head-Gordon, Martin P.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Head-Gordon, Martin P.] Univ Calif Berkeley, Div Chem Sci, Berkeley, CA 94720 USA. [Head-Gordon, Martin P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM ofer4@bastille.cchem.berkeley.edu; robdistasio@bastille.cchem.berkeley.edu; mhg@cchem.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 537-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109755 ER PT J AU Sun, JW Schrier, J Wang, LW Buhro, WE AF Sun, Jianwei Schrier, Joshua Wang, Lin-Wang Buhro, William E. TI PHYS 284-Electronic structure of colloidal CdTe quantum wires SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Sun, Jianwei; Buhro, William E.] Washington Univ, Dept Chem, St Louis, MO 63130 USA. [Schrier, Joshua; Wang, Lin-Wang] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. EM jsuna@artsci.wustl.edu; jschrier@lbl.gov; lwwang@lbl.gov; buhro@wustl.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 284-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109733 ER PT J AU Sverdrup, GM Turner, JA Mann, MK Maness, PC Kroposki, B Ghirardi, ML Evans, RJ Blake, D AF Sverdrup, George M. Turner, John A. Mann, Margaret K. Maness, Pin Ching Kroposki, Benjamin Ghirardi, Mania L. Evans, Robert J. Blake, Dan TI PETR 69-Status of renewable hydrogen production in the United States SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Sverdrup, George M.; Turner, John A.; Mann, Margaret K.; Maness, Pin Ching; Kroposki, Benjamin; Ghirardi, Mania L.; Evans, Robert J.; Blake, Dan] Natl Renewable Energy Lab, Golden, CO 80401 USA. EM george_sverdrup@nrel.gov; john_turner@nrel.gov; Margaret_Mann@nrel.gov; pinching_maness@nrel.gov; benjamin_kroposki@nrel.gov; dan_blake@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 69-PETR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108479 ER PT J AU Syamlal, M Cugini, A AF Syamlal, Madhava Cugini, Anthony TI FUEL 65-Application of computational science for fossil fuel conversion processes with carbon capture SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Syamlal, Madhava; Cugini, Anthony] Natl Energy Technol Lab, Off Res & Dev, Morgantown, WV 26505 USA. EM Madhava.Syamlal@NETL.DOE.GOV; Anthony.Cugini@netl.doe.gov NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 65-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104795 ER PT J AU Sykora, M Mangolini, L Schaller, RD Kortshagen, U Jurbergs, D Klimov, V AF Sykora, Milan Mangolini, Lorenzo Schaller, Richard D. Kortshagen, Uwe Jurbergs, David Klimov, Victor TI PHYS 214-Size-dependent intrinsic radiative decay rates of silicon nanocrystals at large confinement energies SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Sykora, Milan; Schaller, Richard D.; Klimov, Victor] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Mangolini, Lorenzo; Kortshagen, Uwe] Univ Minnesota, Dept Mech Engn, Minneapolis, MN 55455 USA. [Jurbergs, David] Innovalight Inc, Santa Clara, CA 95054 USA. EM sykoram@lanl.gov; rdsx@lanl.gov; uk@me.umn.edu RI Mangolini, Lorenzo/J-2470-2015 NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 214-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109399 ER PT J AU Sykora, RE Almond, PM Skanthakumar, S Soderholm, L Jin, GB Nelson, AG Albrecht-Schmitt, TE AF Sykora, Richard E. Almond, Philip M. Skanthakumar, S. Soderholm, L. Jin, Geng Bang Nelson, Anna-Gay Albrecht-Schmitt, Thomas E. TI NUCL 37-On the importance of cation-cation interactions in Np(V) compounds in determining structure and magnetic properties SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Sykora, Richard E.] Univ S Alabama, Dept Chem, Mobile, AL 36688 USA. [Almond, Philip M.] Savannah River Natl Lab, Dept Chem, Aiken, SC 29808 USA. [Skanthakumar, S.; Soderholm, L.] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. [Jin, Geng Bang; Nelson, Anna-Gay; Albrecht-Schmitt, Thomas E.] Auburn Univ, Dept Chem & Biochem, Auburn, AL 36849 USA. EM rsykora@jaguar1.usouthal.edu; LS@ANL.gov; jingeng@auburn.edu; albreth@auburn.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 37-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107359 ER PT J AU Szigethy, G Raymond, KN AF Szigethy, Geza Raymond, Kenneth N. TI INOR 673-Saturating the coordination plane of actinyl cations using siderophore-inspired ligands SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Raymond, Kenneth N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. [Raymond, Kenneth N.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM szigethy@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 673-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106079 ER PT J AU Tanaka, K Wada, T Fujita, E Muckerman, JT AF Tanaka, Koji Wada, Tohru Fujita, Etsuko Muckerman, James T. TI FUEL 112-Reversible conversion between chemical and electrical energies catalyzed by Ru complexes aimed to construct sustainable society SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Tanaka, Koji; Wada, Tohru] Inst Mol Sci, Coordinat Lab, Okazaki, Aichi 4448787, Japan. [Fujita, Etsuko; Muckerman, James T.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM ktanaka@ims.ac.jp; fujita@bnl.gov; muckerma@bnl.gov RI Fujita, Etsuko/D-8814-2013; Muckerman, James/D-8752-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 112-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104653 ER PT J AU Tanwar, K Petitto, SC Ghose, SK Eng, P Trainor, TP AF Tanwar, Kunaljeet Petitto, Sarah C. Ghose, Sanjit K. Eng, Peter Trainor, Thomas P. TI GEOC 34-Structural investigation of Fe(II) adsorption on a-Fe2O3 (1-102) and (0001) using crystal truncation rod diffraction SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Tanwar, Kunaljeet; Petitto, Sarah C.; Trainor, Thomas P.] Univ Alaska Fairbanks, Dept Chem & Biochem, Fairbanks, AK 99775 USA. [Ghose, Sanjit K.; Eng, Peter] Univ Chicago, Argonne Natl Lab, GSECARS, Argonne, IL 60439 USA. EM ftkjt@uaf.edu; scpettito@hotmail.com; ghose@cars.chicago.edu; eng@cars.chicago.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 34-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105048 ER PT J AU Tao, YF Olsen, BD Segalman, RA Zohar, H AF Tao, Yuefei Olsen, Bradley D. Segalman, Rachel A. Zohar, H. TI PMSE 30-Structural control in functional rod-coil block copolymers SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Tao, Yuefei] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Tao, Yuefei; Olsen, Bradley D.; Segalman, Rachel A.] Lawrence Berkeley Natl Labs, Berkeley, CA 94720 USA. [Olsen, Bradley D.; Segalman, Rachel A.; Zohar, H.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. EM yftao@uclink.berkeley.edu; bdolsen@berkeley.edu; segalman@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 30-PMSE PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109365 ER PT J AU Taylor, LE Adney, WS Decker, SR Weiner, RM Himmel, ME AF Taylor, Larry E., II Adney, William S. Decker, Stephen R. Weiner, Ronald M. Himmel, Michael E. TI CELL 213-"Emerging cellulases": Genomic analyses of cellulolytic microbes provide new paradigms of cellulose degradation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Taylor, Larry E., II; Adney, William S.; Decker, Stephen R.; Himmel, Michael E.] Natl Renewable Energy Lab, Chem & Blosci Ctr, Golden, CO 80401 USA. [Weiner, Ronald M.] Univ Maryland, Dept Cell Biol & Mol Genet, College Pk, MD 20742 USA. EM larry_taylor@nrel.gov; bill_adney@nrel.gov; steve_decker@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 213-CELL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101330 ER PT J AU Thomas, KE Demuth, S AF Thomas, Kenneth E. Demuth, Scott TI NUCL 116-Advanced Safeguards Test Platform concept for AFCF SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Thomas, Kenneth E.; Demuth, Scott] Los Alamos Natl Lab, Safeguards Syst Grp N 4, Los Alamos, NM 87545 USA. EM sdemuth@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 116-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107354 ER PT J AU Tian, GX Liao, WS Wai, CM Rao, LF AF Tian, Guoxin Liao, Weisheng Wai, Chien M. Rao, Linfeng TI Extraction of trivalent lanthanides with oxa-diamides in supercritical carbon dioxide SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Tian, Guoxin; Rao, Linfeng] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Actinide Chem Grp,Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. [Liao, Weisheng; Wai, Chien M.] Univ Idaho, Dept Chem, Moscow, ID 83844 USA. EM gtian@lbl.gov; LRao@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 45-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107413 ER PT J AU Treger, JS Ma, VY Gao, Y Wang, CC Wang, HL Johal, MS AF Treger, Jeremy S. Ma, Vincent Y. Gao, Yuan Wang, Chun-Chih Wang, Hsing-lin Johal, Malkiat S. TI PMSE 351-Tuning the optical properties of a water-soluble PPV using surfactant complexation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA C1 [Treger, Jeremy S.; Ma, Vincent Y.; Johal, Malkiat S.] Pomona Coll, Dept Chem, Claremont, CA 91711 USA. [Gao, Yuan; Wang, Chun-Chih; Wang, Hsing-lin] Los Alamos Natl Lab, Div Chem, Dept Chem, Phys Chem & Spect Grp, Los Alamos, NM 87545 USA. EM cwang@lanl.gov; hwang@lanl.gov; malkiat.johal@pomona.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 351-PMSE PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519XJ UT WOS:000271802800037 ER PT J AU Tretiak, S AF Tretiak, Sergei TI PHYS 267-Theoretical study of electronic properties of disordered and self assembled soft materials SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Tretiak, Sergei] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM serg@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 267-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109697 ER PT J AU Trevitt, AJ Goulay, F Leone, SR AF Trevitt, Adam J. Goulay, Fabien Leone, Stephen R. TI PHYS 577-Reactions of small carbon-bearing radicals with unsaturated hydrocarbons: Product detection and low temperature kinetics SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Phys, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM ajtrevitt@berkeley.edu; srl@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 557-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109661 ER PT J AU Turner, JA Deutsch, TG AF Turner, John A. Deutsch, Todd G. TI PETR 26-Materials issues for photoelectrochemical water splitting SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Turner, John A.; Deutsch, Todd G.] Natl Renewable Energy Lab, Hydrogen Technol & Syst Ctr, Golden, CO 80401 USA. EM John_Turner@nrel.gov; Todd_Deutsch@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 26-PETR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108525 ER PT J AU Turner, JA AF Turner, John A. TI I&EC 29-Hydrogen from sunlight and water: The sustainable hydrogen economy SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Turner, John A.] Natl Renewable Energy Lab, Hydrogen Technol & Syst Ctr, Golden, CO 80401 USA. EM John_Turner@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 29-IEC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105329 ER PT J AU Um, W Brown, CF Serne, RJ Wang, ZM Dodge, CJ Francis, AJ AF Um, Wooyong Brown, Christopher F. Serne, R. Jeff Wang, Zheming Dodge, Cleveland J. Francis, Arokiasamy J. TI GEOC 110-Uranium surface species on BX tank farm sediments at the Hanford site SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Serne, R. Jeff] Pacific NW Natl Lab, Appl Geol & Geochem Grp, Richland, WA 99352 USA. [Brown, Christopher F.] Battelle Pacific NW Natl Lab, Richland, WA 99352 USA. [Wang, Zheming] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA. [Dodge, Cleveland J.; Francis, Arokiasamy J.] Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA. EM wooyong.um@pnl.gov; christopher.brown@pnl.gov; jeff.serne@pnl.gov; zheming.wang@pnl.gov; dodge1@bnl.gov; ajfrancis@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 110-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105089 ER PT J AU Unrine, JM Bertsch, PM Hunyadi, SE Ma, HB Newman, LA Williams, PL AF Unrine, Jason M. Bertsch, Paul M. Hunyadi, Simona E. Ma, Hongbo Newman, Lee A. Williams, Phillip L. TI ENVR 81-Spatial distribution and speciation of Au and Zn in terrestrial organisms exposed to Au and ZnO nanoparticles SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Unrine, Jason M.; Bertsch, Paul M.] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA. [Hunyadi, Simona E.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. [Ma, Hongbo; Williams, Phillip L.] Univ Georgia, Dept Environm Hlth Sci, Athens, GA 30602 USA. [Newman, Lee A.] Univ S Carolina, Dept Environm Hlth Sci, Columbia, SC 29208 USA. EM Jason.Unrine@gmail.com NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 81-ENVR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104484 ER PT J AU Utku, Y Zuckermann, RN Kirshenbaum, K AF Utku, Yeliz Zuckermann, Ronald N. Kirshenbaum, Kent TI BIOL 176-Characterization of nanometer-scale complexes formed by peptidomimetic transfection reagents and siRNA oligonucleotides SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Utku, Yeliz; Kirshenbaum, Kent] New York Univ, Dept Chem, New York, NY 10003 USA. [Zuckermann, Ronald N.] Lawrence Berkeley Natl Lab, Biol Nanostruct Lab Mol Foundry, Berkeley, CA 94720 USA. EM yeliz@nyu.edu; kent@nyu.edu NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 176-BIOL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100728 ER PT J AU Vajda, S Lee, S Lei, Y Curtiss, LA Greeley, JP Redfern, PC Pellin, MJ Lee, B Seifert, S Winans, RE Elam, JW Kleibert, A Sell, K von Oeynhausen, V Meiwes-Broer, KH Fraile-Rodriguez, A Hammer, B Molina, LM Lopez, MJ Alonso, JM AF Vajda, Stefan Lee, Sungsik Lei, Yu Curtiss, Larry A. Greeley, Jeffrey P. Redfern, Paul C. Pellin, Michael J. Lee, Byeongdu Seifert, Soenke Winans, Randall E. Elam, Jeffrey W. Kleibert, Armin Sell, Kristian von Oeynhausen, Viola Meiwes-Broer, Karl-Heinz Fraile-Rodriguez, Arantxa Hammer, Bjork Molina, Luis M. Lopez, Maria J. Alonso, Julio M. TI PHYS 127-Cluster based materials: Novel nanomaterials with distinct size dependent chemical and physical properties SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Vajda, Stefan; Lee, Sungsik; Lei, Yu; Curtiss, Larry A.; Redfern, Paul C.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Vajda, Stefan; Lee, Sungsik; Curtiss, Larry A.; Greeley, Jeffrey P.; Redfern, Paul C.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Lei, Yu] Univ Illinois Chicago, Argonne, IL 60439 USA. [Curtiss, Larry A.; Pellin, Michael J.; Elam, Jeffrey W.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Lee, Byeongdu; Seifert, Soenke; Winans, Randall E.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Kleibert, Armin; Sell, Kristian; von Oeynhausen, Viola; Meiwes-Broer, Karl-Heinz] Univ Rostock, Fachbereich Phys, D-18051 Rostock, Germany. [Fraile-Rodriguez, Arantxa] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland. [Hammer, Bjork] Univ Aarhus, INano, DK-8000 Aarhus, Denmark. [Molina, Luis M.; Lopez, Maria J.; Alonso, Julio M.] Univ Valladolid, Dept Fis Teor Atom & Opt, Fac Ciencias, E-47011 Valladolid, Spain. [Hammer, Bjork] Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus, Denmark. EM vajda@anl.gov; jgreeley@anl.gov; blee@aps.anl.gov; rewinans@anl.gov RI Fraile Rodriguez, Arantxa/A-2446-2009; Pellin, Michael/B-5897-2008; Kleibert, Armin/P-6775-2014; Alonso, Julio /D-5781-2016; Molina, Luis/K-5989-2016 OI Fraile Rodriguez, Arantxa/0000-0003-2722-0882; Pellin, Michael/0000-0002-8149-9768; Kleibert, Armin/0000-0003-3630-9360; Alonso, Julio /0000-0002-8604-8608; Molina, Luis/0000-0001-9559-2851 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 127-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109460 ER PT J AU Verduzco, R Hong, KL Mays, JW Britt, PF AF Verduzco, Rafael Hong, Kunlun Mays, Jimmy W. Britt, Phillip F. TI POLY 501-Conformation of water soluble polythiophenes in aqueous solution SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA C1 [Verduzco, Rafael; Hong, Kunlun; Mays, Jimmy W.; Britt, Phillip F.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Hong, Kunlun; Mays, Jimmy W.; Britt, Phillip F.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM verduzcor@ornl.gov; hongkq@ornl.gov; jimmymays@utk.edu; brittpf@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 501-POLY PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519XJ UT WOS:000271802800347 ER PT J AU Vuong, TL Mardis, KL Tiede, DM AF Vuong, Tim L. Mardis, Kristy L. Tiede, David M. TI CHED 979-Effects of the porphyrin oxidation state on the conformations of c-type cytochromes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Vuong, Tim L.; Mardis, Kristy L.] Chicago State Univ, Dept Chem & Phys, Chicago, IL 60628 USA. [Tiede, David M.] Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. EM tvuong@csu.edu; kmardis@csu.edu; tiede@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 979-CHED PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101707 ER PT J AU Walker, RC Nimlos, MR Crowley, MF Brady, JW Matthews, JF Zhong, LH Brooks, CL Himmel, ME AF Walker, Ross C. Nimlos, Mark R. Crowley, Michael F. Brady, John W. Matthews, James F. Zhong, Linghao Brooks, Charles L., III Himmel, Michael E. TI CELL 79-Recent advances in understanding the mechanism of action of CBH I cellulase through advanced MD simulations SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Walker, Ross C.] Univ Calif San Diego, San Diego Supercomp Ctr, La Jolla, CA 92093 USA. [Nimlos, Mark R.; Crowley, Michael F.; Himmel, Michael E.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Brady, John W.; Matthews, James F.] Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA. [Zhong, Linghao] Penn State Univ, Mt Alto, PA 17225 USA. [Brooks, Charles L., III] Univ Michigan, Dept Chem, Ann Arbor, MI 48104 USA. EM rcw@sdsc.edu; mark_nimlos@nrel.gov; michael_crowley@nrel.gov; jwb7@cornell.edu; jfm17@cornell.edu; luz4@psu.edu; mike_himmel@nrel.gov RI crowley, michael/A-4852-2013 OI crowley, michael/0000-0001-5163-9398 NR 0 TC 0 Z9 0 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 79-CELL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775101325 ER PT J AU Walsh, A Yan, Y Al-Jassim, M Wei, SH AF Walsh, Aron Yan, Yanfa Al-Jassim, Mowafak Wei, Su-Huai TI INOR 955-First-principles examination of the Co-Fe-Al oxide spinel system for water splitting SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Walsh, Aron; Yan, Yanfa; Al-Jassim, Mowafak; Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA. EM aron_walsh@nrel.gov RI Walsh, Aron/A-7843-2008 OI Walsh, Aron/0000-0001-5460-7033 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 955-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105401 ER PT J AU Wander, MCF Criscenti, LJ Clark, A AF Wander, Matthew C. F. Criscenti, Louise J. Clark, Aurora TI GEOC 75-The intrinsic electric double layer on goethite and quartz SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wander, Matthew C. F.; Clark, Aurora] Washington State Univ, Dept Chem, Pullman, WA 99164 USA. [Criscenti, Louise J.] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA. EM mwander@wsu.edu; ljcrisc@sandia.gov; auclark@wsu.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 75-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105019 ER PT J AU Wang, Y AF Wang, Yong TI PETR 68-An overview of biomass conversion to hydrogen SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wang, Yong] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99354 USA. EM yongwang@pnl.gov RI Wang, Yong/C-2344-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 68-PETR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108532 ER PT J AU Wang, ZM Shi, L Liu, CX Marshall, MJ Zachara, JM Rosso, KM Fredrickson, JK AF Wang, Zheming Shi, Liang Liu, Chongxuan Marshall, Matthew J. Zachara, John M. Rosso, Kevin M. Fredrickson, Jim K. TI NUCL 69-The reduction kinetics of Fe(III), U(VI) and Tc(VII) ions by cytochromes of Shewanella oneidensis MR-1 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wang, Zheming] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Shi, Liang] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Liu, Chongxuan; Rosso, Kevin M.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. [Zachara, John M.] Pacific NW Natl Lab, Div Chem Sci, Richland, WA 99352 USA. EM zheming.wang@pnl.gov; liang.shi@pnl.gov; chongxuan.liu@pnl.gov; kevin.rosso@pnl.gov; jim.fredrickson@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 69-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107399 ER PT J AU Warshasky, VB Song, XY AF Warshasky, Vadim B. Song, Xueyu TI COMP 2-Phase diagram calculations of alloys using density functional theory SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Warshasky, Vadim B.; Song, Xueyu] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM warsh@iastate.edu; xsong@iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 2-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104087 ER PT J AU Waychunas, G Eng, P Ghose, SK Shen, YR Spagnoli, D Trainor, TP Zhang, LN AF Waychunas, Glenn Eng, Peter Ghose, Sanjit K. Shen, Y. R. Spagnoli, Dino Trainor, Thomas P. Zhang, Luning TI COLL 77-Ordering of water near mineral interfaces: Recent observations, simulations, and consequences SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Waychunas, Glenn] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Geochem, Berkeley, CA 94720 USA. [Eng, Peter; Ghose, Sanjit K.] Univ Chicago, GSECARS, Adv Photon Source, Argonne, IL 60439 USA. [Spagnoli, Dino] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [Trainor, Thomas P.] Univ Alaska Fairbanks, Dept Chem & Biochem, Fairbanks, AK 99775 USA. [Shen, Y. R.; Zhang, Luning] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM eng@cars.uchicago.edu; ghose@cars.uchicago.edu; shenyr@physics.berkeley.edu; zhangln@berkeley.edu RI Spagnoli, Dino/F-8641-2011 OI Spagnoli, Dino/0000-0001-6367-4748 NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 77-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103577 ER PT J AU Wetzler, M Zuckermann, RN Barron, AE AF Wetzler, Modi Zuckermann, Ronald N. Barron, Annelise E. TI BIOL 115-Structural characterization of peptoid fibrils SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wetzler, Modi; Barron, Annelise E.] Stanford Univ, Dept Bioengn, Stanford, CA 94305 USA. [Zuckermann, Ronald N.] Lawrence Berkeley Natl Lab, Mol Foundry, Biol Nanostruct Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 115-BIOL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100709 ER PT J AU White, R Yeh, S Goldstein, N AF White, Richard Yeh, Sonia Goldstein, Noah TI ENVR 189-Future water challenges of a hydrogen economy SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [White, Richard; Yeh, Sonia; Goldstein, Noah] Lawrence Livermore Natl Lab, Syst & Decis Sci Sect, Livermore, CA 94551 USA. EM white216@llnl.gov; yeh7@llnl.gov; goldstein8@llnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 189-ENVR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104403 ER PT J AU Wickstrorn, L Brewer, S Dyer, RB Raleigh, DP Simmerling, CL AF Wickstrorn, Lauren Brewer, Scott Dyer, R. Brian Raleigh, Daniel P. Simmerling, Carlos L. TI COMP 197-Temperature dependent structural dynamics of the Villin Headpiece Helical Subdomain: An ultrafast folding protein SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Raleigh, Daniel P.; Simmerling, Carlos L.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Brewer, Scott] Los Alamos Natl Lab, Integrated Spect Lab, Los Alamos, NM 87545 USA. [Dyer, R. Brian] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM lwick442@yahoo.com; bdyer@lanl.gov; draleigh@notes.cc.sunysb.edu; carlos.simmerling@sunysb.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 197-COMP PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104171 ER PT J AU Wiederrecht, GP Bouhelier, A AF Wiederrecht, Gary P. Bouhelier, Alexandre TI PHYS 130-Nanoscale plasmonic heterostructures SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wiederrecht, Gary P.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Bouhelier, Alexandre] Inst Carnot Bourgogne, CNRS, Dept Nanosci, F-21078 Dijon, France. EM wiederrecht@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 130-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109349 ER PT J AU Wigginton, NS Rosso, KM Hochella, MF Stack, AG AF Wigginton, Nicholas S. Rosso, Kevin M. Hochella, Michael F., Jr. Stack, Andrew Gregory TI COLL 111-Long-range electron transfer between bacterial multiheme cytochromes and hematite (001) surfaces SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wigginton, Nicholas S.] Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA. [Rosso, Kevin M.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. [Hochella, Michael F., Jr.] Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA. [Stack, Andrew Gregory] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30309 USA. EM wigginto@vt.edu; kevin.rosso@pnl.gov; hochella@vt.edu; andrew.stack@eas.gatech.edu RI Wigginton, Nicholas/F-1747-2011; Stack, Andrew/D-2580-2013 OI Wigginton, Nicholas/0000-0001-9161-6131; Stack, Andrew/0000-0003-4355-3679 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 111-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103371 ER PT J AU Wilkerson, MP Berg, JM Clark, DL Conradson, SD Hobart, DE Kozimor, SA AF Wilkerson, Marianne P. Berg, John M. Clark, David L. Conradson, Steven D. Hobart, David E. Kozimor, Stosh A. TI Electronic structure measurements of Cs2Np(VI)O2Cl4 using fluorescence emission and ligand k-edge X-ray absorption spectroscopies SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wilkerson, Marianne P.; Hobart, David E.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Berg, John M.] Los Alamos Natl Lab, Plutonium Mfg & Technol Div, Los Alamos, NM 87545 USA. [Clark, David L.; Kozimor, Stosh A.] Los Alamos Natl Lab, Seaborg Inst, ADSMS, Los Alamos, NM 87545 USA. EM mpw@lanl.gov; jberg@lanl.gov; conradson@lanl.gov; dhobart@lanl.gov; stosh@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 103-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107420 ER PT J AU Wilson, KR Smith, JD Leone, SR Ahmed, M AF Wilson, Kevin R. Smith, Jared D. Leone, Stephen R. Ahmed, Musahid TI COLL 280-OH aging of organic aerosols SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wilson, Kevin R.] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Leone, Stephen R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Chem, Berkeley, CA 94720 USA. [Leone, Stephen R.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Phys, Berkeley, CA 94720 USA. [Ahmed, Musahid] Ernest Orlando Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM KRWilson@lbl.gov; srl@berkeley.edu; MAhmed@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 280-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103672 ER PT J AU Winans, RE Chapman, KW Chupas, PJ Seifert, S Clemens, T Mathews, J Narkiewicz, MR AF Winans, Randall E. Chapman, Karena W. Chupas, Peter J. Seifert, Soenke Clemens, Tony Mathews, Jonathan Narkiewicz, Marelle R. TI FUEL 135-In situ studies of coal pressurized with CO2 by small angle and high energy X-ray scattering SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Winans, Randall E.; Chapman, Karena W.; Chupas, Peter J.; Seifert, Soenke] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Clemens, Tony] CRL Energy, Lower Hutt, New Zealand. [Mathews, Jonathan; Narkiewicz, Marelle R.] Penn State Univ, University Pk, PA 16802 USA. EM rewinans@anl.gov; chapmank@aps.anl.gov; chupas@anl.gov; A.Clemens@crl.co.nz; jpm10@psu.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 135-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104735 ER PT J AU Woo, YH Artyunkhin, AB Blanchette, CD Laurence, T Thomas, C Sulchek, TA Shen, N Hiddessen, A AF Woo, Youn-Hi Artyunkhin, Alexander B. Blanchette, Craig D. Laurence, Ted Thomas, Cinthia Sulchek, Todd A. Shen, Nan Hiddessen, Amy TI BIOL 136-Visualization of pathogen invasion dynamics and mechanisms at the single cell level using ligand coated microspheres and a FRET reporter SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Woo, Youn-Hi; Artyunkhin, Alexander B.; Blanchette, Craig D.; Laurence, Ted; Thomas, Cinthia; Sulchek, Todd A.; Shen, Nan; Hiddessen, Amy] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM woo20@llnl.gov; alex_artyukhin@yahoo.com; laurence2@llnl.gov; todds@llnl.gov RI Laurence, Ted/E-4791-2011 OI Laurence, Ted/0000-0003-1474-779X NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 136-BIOL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775100575 ER PT J AU Wyman, CE Dale, BE Elander, R Holtzapple, M Ladisch, MR Lee, YY Mitchinson, C Saddler, JN AF Wyman, Charles E. Dale, Bruce E. Elander, Richard Holtzapple, Mark Ladisch, Michael R. Lee, Y. Y. Mitchinson, Colin Saddler, John N. TI CINF 67-Sugar yields from pretreatment and enzymatic hydrolysis of corn stover and poplar SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Wyman, Charles E.] Univ Calif Riverside, Riverside, CA 92521 USA. [Dale, Bruce E.] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA. [Elander, Richard] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Holtzapple, Mark] Texas A&M Univ, Dept Chem Engn, College Stn, TX 77843 USA. [Ladisch, Michael R.] Purdue Univ, Potter Engn Ctr, Lab Renewable Resources Engn Dept, W Lafayette, IN 47907 USA. [Lee, Y. Y.] Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA. [Mitchinson, Colin] Genencor Int, Palo Alto, CA 94304 USA. [Saddler, John N.] Univ British Columbia, Forest Sci Ctr, Vancouver, BC V6T 1Z4, Canada. EM cewyman@engr.ucr.edu; bdale@egr.msu.edu; Richard_Elander@nrel.gov; m-holtzapple@tamu.edu; ladisch@purdue.edu; leeyoon@auburn.edu; colin.mitchinson@danisco.com; saddler@interchange.ubc.ca RI Saddler, Jack (John)/A-9103-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 67-CINF PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103305 ER PT J AU Xia, YX Friese, JI Rao, LF Dean, M Bachelor, P AF Xia, Yuanxian Friese, Judah I. Rao, Linfeng Dean, Moore Bachelor, Paula TI NUCL 55-Complexation thermodynamics of plutonium (IV) with fluoride ligand SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Xia, Yuanxian; Dean, Moore] Pacific NW Natl Lab, Environm Dynam & Simulat Grp, Richland, WA 99352 USA. [Friese, Judah I.] Pacific NW Natl Lab, Natl Secur Div, Richland, WA 99352 USA. [Rao, Linfeng] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Glenn T Seaborg Ctr,Actinide Chem Grp, Berkeley, CA 94720 USA. EM Yuanxian.xia@pnl.gov; judah.friese@pnl.gov; LRao@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 55-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107400 ER PT J AU Xiang, HJ Lee, C Zhang, YM Tian, CA Kang, J Whangbo, MH AF Xiang, Hongjun Lee, Changhoon Zhang, Yuemei Tian, Chuan Kang, Jinhee Whangbo, Myung-Hwan TI INOR 491-Density functional theory characterization of the spin exchange interactions and electric polarizations of some multiferroic compounds SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Xiang, Hongjun] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Lee, Changhoon; Zhang, Yuemei; Tian, Chuan; Kang, Jinhee; Whangbo, Myung-Hwan] N Carolina State Univ, Dept Chem, Raleigh, NC 27695 USA. EM xianghjun@gmail.com; clee10@ncsu.edu; yzhang14@ncsu.edu; ctian@ncsu.edu; icdkjh@wonkwang.ac.kr; mike_whangbo@ncsu.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 491-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105458 ER PT J AU Xu, JD Moore, EG Jocher, CJ Raymond, KN AF Xu, Jide Moore, Evan G. Jocher, Christoph J. Raymond, Kenneth N. TI INOR 243-Hexastranded tetranuclear luminescent Eu(III) helicates SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Xu, Jide; Moore, Evan G.; Jocher, Christoph J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Raymond, Kenneth N.] Univ Calif Berkeley, Dept Chem, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Raymond, Kenneth N.] Univ Calif Berkeley, Chem Sci Div LBNL, Berkeley, CA 94720 USA. EM jide@berkeley.edu; egmoore@berkeley.edu; jocher@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 243-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105874 ER PT J AU Xu, M Larentzos, JP Criscenti, LJ Allen, HC AF Xu, Man Larentzos, James P. Criscenti, Louise J. Allen, Heather C. TI GEOC 53-Nitrate ions and ion pairing in aqueous solution and at the air-aqueous interface SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Xu, Man; Allen, Heather C.] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA. [Larentzos, James P.; Criscenti, Louise J.] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA. EM mxu@chemistry.ohio-state.edu; jplaren@sandia.gov; ljcrisc@sandia.gov; allen@chemistry.ohio-state.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 53-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105030 ER PT J AU Xu, M Larentzos, JP Criscenti, LJ Allen, HC AF Xu, Man Larentzos, James P. Criscenti, Louise J. Allen, Heather C. TI COLL 263-Air-liquid interfaces of aqueous metal-nitrate solutions SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Xu, Man; Allen, Heather C.] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA. [Larentzos, James P.; Criscenti, Louise J.] Sandia Natl Labs, Dept Geochem, Albuquerque, NM 87185 USA. EM mxu@chemistry.ohio-state.edu; jplaren@sandia.gov; ljcrisc@sandia.gov; allen@chemistry.ohio-state.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 263-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103439 ER PT J AU Yang, A Johns, J Muller, E Strader, ML Harris, CB AF Yang, Aram Johns, James Muller, Enic Strader, Matthew L. Harris, Charles B. TI COLL 456-Two-photon photo-emission of thiophenes on Ag(111) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 Univ Calif Berkeley, Berkeley, CA 94720 USA. EO Lawrence Berkeley Natl Lab, Dept Chem, Berkeley, CA 94720 USA. EM ayang@xenon.cchem.berkeley.edu; jej7x@xenon.cchem.berkeley.edu; muller@xenon.cchem.berkeley.edu; straderm@xenon.cchem.berkeley.edu RI Muller, Eric/J-2161-2012 OI Muller, Eric/0000-0002-9629-1767 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 456-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103366 ER PT J AU Yang, PD AF Yang, Peidong TI COLL 489-Nanowire-based solar cell SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Yang, Peidong] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Yang, Peidong] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM p_yang@berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 489-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103424 ER PT J AU Yang, P Batista, ER Hay, PJ Martin, RL Boland, KS Burns, CJ Christensen, CN Clark, DL Conradson, SD Schwarz, DE Wilkerson, MP Wolfsberg, LE AF Yang, Ping Batista, Ennique R. Hay, P. Jeffrey Martin, Richard L. Boland, Kevin S. Burns, Carol J. Christensen, Christen N. Clark, David L. Conradson, Steven D. Schwarz, Daniel E. Wilkerson, Mariane P. Wolfsberg, Laura E. TI Probing electronic structure of uranium-ligand bonds: Theoretical study of X-ray absorption spectroscopy SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Yang, Ping; Batista, Ennique R.; Hay, P. Jeffrey; Martin, Richard L.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Boland, Kevin S.; Wilkerson, Mariane P.; Wolfsberg, Laura E.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Christensen, Christen N.; Clark, David L.; Schwarz, Daniel E.] Los Alamos Natl Lab, Seaborg Inst, ADSMS, Los Alamos, NM 87545 USA. EM pyang@lanl.gov; erb@lanl.gov; pjhay@lanl.gov; rlmartin@lanl.gov; cjb@lanl.gov; cnchristensen@gmail.com; conradson@lanl.gov; mpw@lanl.gov; lwolf@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 49-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107404 ER PT J AU Yang, P Batista, ER Hay, PJ Martin, RL Boland, KS Burns, CJ Christensen, CN Clark, DL Conradson, SD Schwarz, DE Wilkerson, MP Wolfsberg, LE AF Yang, Ping Batista, Enrique R. Hay, P. Jeffrey Martin, Richard L. Boland, Kevin S. Burns, Carol J. Christensen, Christen N. Clark, David L. Conradson, Steven D. Schwarz, Daniel E. Wilkerson, Maninne P. Wolfsberg, Laura E. TI INOR 1070-Covalency trends in metallocene dichlorides (M=Ti, Zr, Hf, Th, U): Theoretical study of K-edge XAS spectra SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Yang, Ping; Batista, Enrique R.; Hay, P. Jeffrey; Martin, Richard L.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Boland, Kevin S.; Wolfsberg, Laura E.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Christensen, Christen N.; Clark, David L.; Schwarz, Daniel E.; Wilkerson, Maninne P.] Los Alamos Natl Lab, Seaborg Inst, ADSMS, Los Alamos, NM 87545 USA. EM pyang@lanl.gov; erb@lanl.gov; pjhay@lanl.gov; rlmartin@lanl.gov; cjb@lanl.gov; cnchristensen@gmail.com; conradson@lanl.gov; mpw@lanl.gov; lwolf@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1070-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775106170 ER PT J AU Yde, EA AF Yde, Eric A. TI NUCL 111-The Advanced Fuel Cycle Facility (AFCF) and its support of the GNEP objectives SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Yde, Eric A.] Battelle Energy Alliance, Nucl Sci & Engn, Idaho Falls, ID 83415 USA. EM Eric.Yde@inl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 111-NUCL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775107368 ER PT J AU Yi, CW Kwak, JH Peden, CHF Szanyi, J AF Yi, Cheol-Woo Kwak, Ja Hun Peden, Charles H. F. Szanyi, Janos TI COLL 264-Ba-containing Al2O3 NOx storage materials: Correlation between the model and high surface area catalysts SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Yi, Cheol-Woo; Kwak, Ja Hun; Peden, Charles H. F.; Szanyi, Janos] Pacific NW Natl Lab, Inst Interfacial Catalysis, Richland, WA 99352 USA. EM cheolwoo.yi@pnl.gov; kwak@pnl.gov; chuck.peden@pnl.gov; janos.szanyi@pnl.gov RI Kwak, Ja Hun/J-4894-2014 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 264-COLL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775103533 ER PT J AU Yoo, S Zahariev, F Gordon, MS AF Yoo, Soohaeng Zahariev, Federico Gordon, Mark S. TI PHYS 557-Solvent effect on optical properties of acetone: A time-dependent density functional theory approach combined with the effective fragment potential method SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Yoo, Soohaeng; Zahariev, Federico; Gordon, Mark S.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. EM soohaeng@si.msg.chem.iastate.edu; federico@si.msg.chem.iastate.edu; mark@si.msg.chem.iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 557-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108691 ER PT J AU Yoon, J Gelabert, A Ha, J Brown, GE Hwang, JY AF Yoon, Jihae Gelabert, Alexandre Ha, Juyoung Brown, Gordon E., Jr. Hwang, Jin-Yeon TI GEOC 158-Adsorption of iodine on montmorillonites modified with cationic organic compounds SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Yoon, Jihae; Gelabert, Alexandre; Ha, Juyoung; Brown, Gordon E., Jr.] Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA. [Brown, Gordon E., Jr.] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA. [Hwang, Jin-Yeon] Pusan Natl Univ, Div Earth Environm Syst, Pusan 609735, South Korea. EM jihae@pangea.stanford.edu; gelabert@stanford.edu; jyha@pangea.stanford.edu; hwangjy@pusan.ac.kr RI gelabert, alexandre/A-5684-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 158-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105057 ER PT J AU Zahariev, F Sok, S Gordon, MS AF Zahariev, Federico Sok, Sarom Gordon, Mark S. TI PHYS 582-An implementation of meta-GGA type of density functionals SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM federico@si.msg.chem.iastate.edu; ssok1@iastate.edu; mark@si.msg.chem.iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 582-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109208 ER PT J AU Zahariev, F Yoo, S Sok, S Gordon, MS AF Zahariev, Federico Yoo, Soohaeng Sok, Sarom Gordon, Mark S. TI PHYS 46-A new approach to nonlinear response time-dependent density functional theory SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 Iowa State Univ, Ames Lab, USDOE, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM federico@si.msg.chem.iastate.edu; soohaeng@si.msg.chem.iastate.edu; ssok1@iastate.edu; mark@si.msg.chem.iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 46-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775108896 ER PT J AU Zavarin, M Bourbin, M Kersting, AB Powell, BA Zhao, PZ AF Zavarin, Mavrik Bourbin, Mathilde Kersting, Annie B. Powell, Brian A. Zhao, Pihong TI GEOC 226-Examination of the effects of ionic strength and pH on neptunium(V) and plutonium(V) sorption to montmorillonite SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Zavarin, Mavrik; Kersting, Annie B.; Powell, Brian A.; Zhao, Pihong] Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Livermore, CA 94550 USA. [Bourbin, Mathilde] ENSCP, F-75231 Paris 05, France. EM zavarin1@llnl.gov; kersting1@llnl.gov; powell37@llnl.gov; zhao1@llnl.gov RI Powell, Brian /C-7640-2011 OI Powell, Brian /0000-0003-0423-0180 NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 226-GEOC PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105114 ER PT J AU Zehnder, RA Hobart, DE Clark, DL Scott, BL Runde, WH AF Zehnder, Ralph A. Hobart, David E. Clark, David L. Scott, Brian L. Runde, Wolfgang H. TI INOR 1090-Structural trends in an extended series of lanthanide bis-hydroxychlorides Ln(OH)(2)Cl (Ln = Nd - Lu, except Pm and Sm) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc, Div Cellulose & Renewble Mat C1 [Zehnder, Ralph A.] Univ Louisiana Monroe, Dept Chem, Monroe, LA 71203 USA. [Hobart, David E.; Scott, Brian L.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Clark, David L.] Los Alamos Natl Lab, Seaborg Inst, Los Alamos, NM 87545 USA. [Runde, Wolfgang H.] Los Alamos Natl Lab, Sci Program Off, Los Alamos, NM 87545 USA. EM zehnder@ulm.edu; dhobart@lanl.gov; bscott@lanl.gov NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1090-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105464 ER PT J AU Zhang, LN Shen, YR Tian, CS Waychunas, GA AF Zhang, Luning Shen, Y. Ron Tian, Chuanshan Waychunas, Glenn A. TI ENVR 61-Vibrational spectroscopy on alumina/water interfaces with surface charges SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Zhang, Luning; Shen, Y. Ron; Tian, Chuanshan] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Waychunas, Glenn A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM zhangln@berkeley.edu; yrshen@calmail.berkeley.edu; gawaychunas@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 61-ENVR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104416 ER PT J AU Zhang, YHP Evans, BR Mielenz, J Adams, M AF Zhang, Y-H. Percival Evans, Barbara R. Mielenz, Jonathan Adams, Mike TI FUEL 213-Complete conversion of carbohydrate and water to hydrogen and carbohydrate dioxide by a synthetic enzymatic pathway SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Zhang, Y-H. Percival] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA. [Evans, Barbara R.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Mielenz, Jonathan] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Adams, Mike] Univ Georgia, Dept Biochem & Mol Biol, Anthens, GA 30602 USA. EM biofuels@vt.edu; evansb@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 213-FUEL PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775104742 ER PT J AU Zhang, Y Natesakawat, S Sanders, T Matranga, C Veser, G AF Zhang, Yi Natesakawat, Sittichai Sanders, Tom Matranga, Christopher Veser, Goetz TI Exceptionally reactive Pt-BHA nanocomposite catalysts for CO oxidation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Zhang, Yi; Sanders, Tom; Veser, Goetz] Univ Pittsburgh, Dept Chem Engn, Pittsburgh, PA 15261 USA. [Natesakawat, Sittichai; Matranga, Christopher] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM yiz12@pitt.edu; tjs12@pitt.edu; christopher.matranga@netl.doe.gov; gveser@engr.pitt.edu RI Matranga, Christopher/E-4741-2015 OI Matranga, Christopher/0000-0001-7082-5938 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 449-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109543 ER PT J AU Zhou, HJ Wong, SS AF Zhou, Hongjun Wong, Stanislaus S. TI INOR 347-A general, versatile method to synthesize 1-D transition metal oxide arrays SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Zhou, Hongjun; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Wong, Stanislaus S.] Brookhaven Natl Lab, Dept Mat Sci, Stony Brook, NY 11794 USA. EM hozzhou@ic.sunysb.edu; sswong@notes.cc.sunysb.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 347-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105524 ER PT J AU Zhou, HJ Mao, YB Wong, SS AF Zhou, Hongjun Mao, Yuanbing Wong, Stanislaus S. TI INOR 1017-Probing structure-parameter correlations in the molten salt synthesis of BaZrO3 perovskite submicrometer-sized particles SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Zhou, Hongjun; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Mao, Yuanbing] Univ Calif Los Angeles, Dept Chem & Biomol Engn, Los Angeles, CA 90095 USA. [Wong, Stanislaus S.] Brookhaven Natl Lab, Dept Mat Sci, Stony Brook, NY 11794 USA. EM hozzhou@ic.sunysb.edu; ybmao@ucla.edu; sswong@notes.cc.sunysb.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 1017-INOR PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775105523 ER PT J AU Zunger, A AF Zunger, Alex TI PHYS 53-New insights on quantum dot solar cells from solid state theory SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 235th American-Chemical-Society National Meeting CY APR 06-10, 2008 CL New Orleans, LA SP Amer Chem Soc C1 [Zunger, Alex] Natl Renewable Energy Lab, Golden, CO 80401 USA. EM alex_zunger@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD APR 6 PY 2008 VL 235 MA 53-PHYS PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 519OA UT WOS:000271775109794 ER PT J AU Hinklin, TR Rand, SC Laine, RM AF Hinklin, Thomas R. Rand, Stephen C. Laine, Richard M. TI Transparent, polycrystalline upconverting nanoceramics: Towards 3-D displays SO ADVANCED MATERIALS LA English DT Article ID FLAME SPRAY-PYROLYSIS; FIBROUS MONOLITHIC CERAMICS; UP-CONVERSION EMISSION; ND-YAG CERAMICS; OPTICAL-PROPERTIES; SOLID-STATE; LF-FSP; PHOSPHORS; ALUMINA; LASERS AB Transparent, polycrystalline (Y-0.86-Yb0.11Er0.03)(2)O-3 with an average grain size of 400 nm on irradiation with 980 nm laser light through a mask upconverts the IR photons emitting red light at 662 nm. A model for a red pixel in a 3-D inverted planetarium display is presented (see figure). C1 [Laine, Richard M.] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA. [Rand, Stephen C.] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA. [Hinklin, Thomas R.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Laine, RM (reprint author), Univ Michigan, Dept Mat Sci & Engn, 2300 Hayward St, Ann Arbor, MI 48109 USA. EM talsdad@umich.edu NR 44 TC 72 Z9 72 U1 3 U2 67 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 0935-9648 J9 ADV MATER JI Adv. Mater. PD APR 4 PY 2008 VL 20 IS 7 BP 1270 EP + DI 10.1002/adma.200701235 PG 5 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 293QD UT WOS:000255348900008 ER PT J AU Agarwal, R Burley, SK Swaminathan, S AF Agarwal, Rakhi Burley, Stephen K. Swaminathan, Subramanyam TI Structure of human dual specificity protein phosphatase 23, VHZ, enzyme-substrate/product complex SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID PROTEIN-TYROSINE-PHOSPHATASE; TRANSITION-STATE STRUCTURES; CRYSTAL-STRUCTURE; SPECIFICITY; CATALYSIS; RECOGNITION; PEPTIDE; REFINEMENT; MECHANISM; DISEASE AB Protein phosphorylation plays a crucial role in mitogenic signal transduction and regulation of cell growth and differentiation. Dual specificity protein phosphatase 23 ( DUSP23) or VHZ mediates dephosphorylation of phospho-tyrosyl ( pTyr) and phospho-seryl/threonyl ( pSer/pThr) residues in specific proteins. In vitro, it can dephosphorylate p44ERK1 but not p54SAPK-beta and enhance activation of c-Jun N-terminal kinase ( JNK) and p38. Human VHZ, the smallest of the catalytically active protein-tyrosine phosphatases ( PTP) reported to date ( 150 residues), is a class I Cys-based PTP and bears the distinctive active site signature motif HCXXGXXRS( T). We present the crystal structure of VHZ determined at 1.93 angstrom resolution. The polypeptide chain adopts the typical alpha beta alpha PTP fold, giving rise to a shallow active site cleft that supports dual phosphorylated substrate specificity. Within our crystals, the Thr-135-Tyr-136 from a symmetry-related molecule bind in the active site with a malate ion, where they mimic the phosphorylated TY motif of the MAPK activation loop in an enzyme-substrate/product complex. Analyses of intermolecular interactions between the enzyme and this pseudo substrate/product along with functional analysis of Phe-66, Leu-97, and Phe-99 residues provide insights into the mechanism of substrate binding and catalysis in VHZ. C1 [Agarwal, Rakhi; Swaminathan, Subramanyam] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Burley, Stephen K.] SGX Pharmaceut Inc, San Diego, CA 92121 USA. RP Swaminathan, S (reprint author), Brookhaven Natl Lab, Dept Biol, Bldg 463, Upton, NY 11973 USA. EM swami@bnl.gov FU NIGMS NIH HHS [U54 GM 074945] NR 34 TC 18 Z9 20 U1 0 U2 2 PU AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3996 USA SN 0021-9258 J9 J BIOL CHEM JI J. Biol. Chem. PD APR 4 PY 2008 VL 283 IS 14 BP 8946 EP 8953 DI 10.1074/jbc.M708945200 PG 8 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 280ZO UT WOS:000254465800023 PM 18245086 ER PT J AU Zheng, ZP Zhang, GX Wan, JM AF Zheng, Zuoping Zhang, Guloxiang Wan, Jiamin TI Reactive transport modeling of column experiments on the evolution of saline-alkaline waste solutions SO JOURNAL OF CONTAMINANT HYDROLOGY LA English DT Article DE saline-alkaline waste solution; plume front; sensitivity analysis; reactive transport modeling; Pitzer ion-interaction; Hanford site ID SOLID INORGANIC SALTS; CATION-EXCHANGE; SUBSURFACE SEDIMENTS; HANFORD SITE; CESIUM; PRECIPITATION; CANCRINITE; CARBONATE; STRONTIUM; CALCIUM AB Leakage of saline-alkaline tank waste solutions often creates a serious environmental contamination problem. To better understand the mechanisms controlling the fate of such waste solutions in the Hanford vadose zone, we simulated reactive transport in columns designed to represent local site conditions. The Pitzer ion interaction module was used, with principal geochemical processes considered in the simulation including quartz dissolution, precipitation of brucite, calcite, and portlandite, multicomponent cation exchange, and aqueous complexation reactions. Good matches were observed between the simulated and measured column data at ambient temperature (similar to 21 degrees C). Relatively good agreement was also obtained at high temperature (similar to 70 degrees C). The decrease of pH at the plume front is examined through formation of secondary mineral phases and/or quartz dissolution. Substantial formation of secondary mineral phases resulting from multi-component cation exchange suggests that these phases are responsible for a decrease in pH within the plume front. In addition, a sensitivity analysis was conducted with respect to cation exchange capacity, selectivity coefficient, mineral assemblage, temperature, and ionic strength. This study could serve as a useful guide to subsequent experimental work, to thermodynamic models developed for the concentrated solutions at high ionic strength and to other types of waste plume studies. Published by Elsevier B.V. C1 [Zheng, Zuoping; Zhang, Guloxiang; Wan, Jiamin] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Zheng, ZP (reprint author), 1816 Dwight Way, Berkeley, CA 94703 USA. EM zuoping1@netzero.net RI Wan, Jiamin/H-6656-2014 NR 38 TC 3 Z9 3 U1 2 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-7722 J9 J CONTAM HYDROL JI J. Contam. Hydrol. PD APR 4 PY 2008 VL 97 IS 1-2 BP 42 EP 54 DI 10.1016/j.jconhyd.2007.12.002 PG 13 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA 292XC UT WOS:000255298400004 PM 18313795 ER PT J AU Dou, W Omran, K Grimberg, SJ Denham, M Powers, SE AF Dou, Wenqian Omran, Kamel Grimberg, Stefan J. Denham, Miles Powers, Susan E. TI Characterization of DNAPL from the US DOE Savannah River Site SO JOURNAL OF CONTAMINANT HYDROLOGY LA English DT Article DE DNAPL; interfacial tension; US DOE; chlorinated solvents ID NONAQUEOUS PHASE LIQUIDS; INTERFACIAL-TENSION; ENHANCED REMEDIATION; CHLORINATED SOLVENTS; CRUDE-OIL; WETTABILITY; WATER; MIXTURES; ACID; NAPL AB The composition of chlorinated hydrocarbon DNAPLs (dense non-aqueous phase liquids) from field sites can be substantially different than the material originally purchased for use as a solvent. Waste management practices at the U.S. Department of Energy's (DOE) Savannah River Site (SRS) included co-disposal of a wide range of organic and inorganic wastes. In 199 1, a clear, orange-colored DNAPL was found in two wells near the SRS M-area settling basin. Waste effluent from the fuel and target fabrication facilities that were discharged to this settling basin included acids, caustics, metals and chlorinated solvents. The characterization of the SRS DNAPL suggests that numerous constituents partitioned into the DNAPL during its use as a solvent, co-disposal and ultimate migration through the subsurface. Trace constituents in the DNAPL include metals, from processing operations or co-disposal practices and subsurface minerals, high molecular weight hydrocarbons and alkyl esters, and acids. This complex mixture results in DNAPL-water interfacial properties that are substantially different than would be expected from a simple mixture of PCE and TCE. Under conditions when there is a high DNAPL to water volume ratio, a semi-rigid film accumulates on water droplets suspended in the DNAPL. It is concluded that the array of precipitated metal species comprising this film contributes to the interfacial tension that is over an order of magnitude lower than expected for a "clean" PCE/TCE mixture. (C) 2008 Elsevier B.V All rights reserved. C1 [Dou, Wenqian; Omran, Kamel; Grimberg, Stefan J.; Powers, Susan E.] Clarkson Univ, Ctr Environm, Potsdam, NY 13676 USA. [Denham, Miles] Savannah River Natl Lab, Savannah, GA USA. RP Powers, SE (reprint author), 8 Clarkson Ave, Potsdam, NY 13699 USA. EM sep@clarkson.edu NR 53 TC 6 Z9 6 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-7722 J9 J CONTAM HYDROL JI J. Contam. Hydrol. PD APR 4 PY 2008 VL 97 IS 1-2 BP 75 EP 86 DI 10.1016/j.jconhyd.2008.01.002 PG 12 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA 292XC UT WOS:000255298400007 PM 18295370 ER PT J AU Abazov, VM Abbott, B Abolins, M Acharya, BS Adams, M Adams, T Aguilo, E Ahn, SH Ahsan, M Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Anastasoaie, M Ancu, LS Andeen, T Anderson, S Andrieu, B Anzelc, MS Arnoud, Y Arov, M Arthaud, M Askew, A Asman, B Jesus, ACSA Atramentov, O Autermann, C Avila, C Ay, C Badaud, F Baden, A Bagby, L Baldin, B Bandurin, DV Banerjee, S Banerjee, P Barberis, E Barfuss, AF Bargassa, P Baringer, P Barreto, J Bartlett, JF Bassler, U Bauer, D Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Bellavance, A Benitez, JA Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Biscarat, C Blazey, G Blekman, F Blessing, S Bloch, D Bloom, K Boehnlein, A Boline, D Bolton, TA Borissov, G Bose, T Brandt, A Brock, R Brooijmans, G Bross, A Brown, D Buchanan, NJ Buchholz, D Buehler, M Buescher, V Bunichev, V Burdin, S Burke, S Burnett, TH Buszello, CP Butler, JM Calfayan, P Calvet, S Cammin, J Carvalho, W Casey, BCK Cason, NM Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chan, K Chandra, A Charles, F Cheu, E Chevallier, F Cho, DK Choi, S Choudhary, B Christofek, L Christoudias, T Cihangir, S Claes, D Coadou, Y Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Crepe-Renaudin, S Cutts, D Cwiok, M da Motta, H Das, A Davies, G De, K de Jong, SJ De la Cruz-Burelo, E Martins, CDO Degenhardt, JD Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S Diehl, HT Diesburg, M Dominguez, A Dong, H Dudko, LV Duflot, L Dugad, SR Duggan, D Duperrin, A Dyer, J Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Eno, S Ermolov, P Evans, H Evdokimov, A Evdokimov, VN Ferapontov, AV Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Ford, M Fortner, M Fox, H Fu, S Fuess, S Gadfort, T Galea, CF Gallas, E Galyaev, E Garcia, C Garcia-Bellido, A Gavrilov, V Gay, P Geist, W Gele, D Gerber, CE Gershtein, Y Gillberg, D Ginther, G Gollub, N Gomez, B Goussiou, A Grannis, PD Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guo, J Guo, F Gutierrez, P Gutierrez, G Haas, A Hadley, NJ Haefner, P Hagopian, S Haley, J Hall, I Hall, RE Han, L Hanagaki, K Hansson, P Harder, K Harel, A Harrington, R Hauptman, JM Hauser, R Hays, J Hebbeker, T Hedin, D Hegeman, JG Heinmiller, JM Heinson, AP Heintz, U Hensel, C Herner, K Hesketh, G Hildreth, MD Hirosky, R Hobbs, JD Hoeneisen, B Hoeth, H Hohlfeld, M Hong, SJ Hossain, S Houben, P Hu, Y Hubacek, Z Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jain, S Jakobs, K Jarvis, C Jesik, R Johns, K Johnson, C Johnson, M Jonckheere, A Jonsson, P Juste, A Kafer, D Kajfasz, E Kalinin, AM Kalk, JR Kalk, JM Kappler, S Karmanov, D Kasper, P Katsanos, I Kau, D Kaur, R Kaushik, V Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YM Khatidze, D Kim, H Kim, TJ Kirby, MH Kirsch, M Klima, B Kohli, JM Konrath, JP Kopal, M Korablev, VM Kozelov, AV Krop, D Kuhl, T Kumar, A Kunori, S Kupco, A Kurca, T Kvita, J Lacroix, F Lam, D Lammers, S Landsberg, G Lebrun, P Lee, WM Leflat, A Lehner, F Lellouch, J Leveque, J Lewis, P Li, J Li, QZ Li, L Lietti, SM Lima, JGR Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobo, L Lobodenko, A Lokajicek, M Love, P Lubatti, HJ Lyon, AL Maciel, AKA Mackin, D Madaras, RJ Mattig, P Magass, C Magerkurth, A Mal, PK Malbouisson, HB Malik, S Malyshev, VL Mao, HS Maravin, Y Martin, B McCarthy, R Melnitchouk, A Mendes, A Mendoza, L Mercadante, PG Merkin, M Merritt, KW Meyer, J Meyer, A Millet, T Mitrevski, J Molina, J Mommsen, RK Mondal, NK Moore, RW Moulik, T Muanza, GS Mulders, M Mulhearn, M Mundal, O Mundim, L Nagy, E Naimuddin, M Narain, M Naumann, NA Neal, HA Negret, JP Neustroev, P Nilsen, H Nogima, H Nomerotski, A Novaes, SF Nunnemann, T O'Dell, V O'Neil, DC Obrant, G Ochando, C Onoprienko, D Oshima, N Osta, J Otec, R Garzon, GJOY Owen, M Padley, P Pangilinan, M Parashar, N Park, SJ Park, SK Parsons, J Partridge, R Parua, N Patwa, A Pawloski, G Penning, B Perfilov, M Peters, K Peters, Y Petroff, P Petteni, M Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Podstavkov, VM Pogorelov, Y Pol, ME Polozov, P Pope, BG Popov, AV Potter, C da Silva, WLP Prosper, HB Protopopescu, S Qian, J Quadt, A Quinn, B Rakitine, A Rangel, MS Ranjan, K Ratoff, PN Renkel, P Reucroft, S Rich, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F Robinson, S Rodrigues, RF Rominsky, M Royon, C Rubinov, P Ruchti, R Safronov, G Sajot, G Sanchez-Hernandez, A Sanders, MP Santoro, A Savage, G Sawyer, L Scanlon, T Schaile, D Schamberger, RD Scheglov, Y Schellman, H Schieferdecker, P Schliephake, T Schwanenberger, C Schwartzman, A Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shamim, M Shary, V Shchukin, AA Shivpuri, RK Siccardi, V Simak, V Sirotenko, V Skubic, P Slattery, P Smirnov, D Snow, J Snow, GR Snyder, S Soldner-Rembold, S Sonnenschein, L Sopczak, A Sosebee, M Soustruznik, K Souza, M Spurlock, B Stark, J Steele, J Stolin, V Stoyanova, DA Strandberg, J Strandberg, S Strang, MA Strauss, M Strauss, E Strohmer, R Strom, D Stutte, L Sumowidagdo, S Svoisky, P Sznajder, A Talby, M Tamburello, P Tanasijczuk, A Taylor, W Temple, J Tiller, B Tissandier, F Titov, M Tokmenin, VV Toole, T Torchiani, I Trefzger, T Tsybychev, D Tuchming, B Tully, C Tuts, PM Unalan, R Uvarov, S Uvarov, L Uzunyan, S Vachon, B van den Berg, PJ Van Kooten, R van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Vaupel, M Verdier, P Vertogradov, LS Verzocchi, M Villeneuve-Seguier, F Vint, P Vokac, P Von Toerne, E Voutilainen, M Wagner, R Wahl, HD Wang, L Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Weber, G Wenger, A Wermes, N Wetstein, M White, A Wicke, D Wilson, GW Wimpenny, SJ Wobisch, M Wood, DR Wyatt, TR Xie, Y Yacoob, S Yamada, R Yan, M Yasuda, T Yatsunenko, YA Yip, K Yoo, HD Youn, SW Yu, J Zatserklyaniy, A Zeitnitz, C Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zieminski, A Zivkovic, L Zutshi, V Zverev, EG AF Abazov, V. M. Abbott, B. Abolins, M. Acharya, B. S. Adams, M. Adams, T. Aguilo, E. Ahn, S. H. Ahsan, M. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Anastasoaie, M. Ancu, L. S. Andeen, T. Anderson, S. Andrieu, B. Anzelc, M. S. Arnoud, Y. Arov, M. Arthaud, M. Askew, A. Asman, B. Jesus, A. C. S. Assis Atramentov, O. Autermann, C. Avila, C. Ay, C. Badaud, F. Baden, A. Bagby, L. Baldin, B. Bandurin, D. V. Banerjee, S. Banerjee, P. Barberis, E. Barfuss, A. -F. Bargassa, P. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bauer, D. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Bellavance, A. Benitez, J. A. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Biscarat, C. Blazey, G. Blekman, F. Blessing, S. Bloch, D. Bloom, K. Boehnlein, A. Boline, D. Bolton, T. A. Borissov, G. Bose, T. Brandt, A. Brock, R. Brooijmans, G. Bross, A. Brown, D. Buchanan, N. J. Buchholz, D. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burke, S. Burnett, T. H. Buszello, C. P. Butler, J. M. Calfayan, P. Calvet, S. Cammin, J. Carvalho, W. Casey, B. C. K. Cason, N. M. Castilla-Valdez, H. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chan, K. Chandra, A. Charles, F. Cheu, E. Chevallier, F. Cho, D. K. Choi, S. Choudhary, B. Christofek, L. Christoudias, T. Cihangir, S. Claes, D. Coadou, Y. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Crepe-Renaudin, S. Cutts, D. Cwiok, M. da Motta, H. Das, A. Davies, G. De, K. de Jong, S. J. De la Cruz-Burelo, E. Martins, C. De Oliveira Degenhardt, J. D. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. Diehl, H. T. Diesburg, M. Dominguez, A. Dong, H. Dudko, L. V. Duflot, L. Dugad, S. R. Duggan, D. Duperrin, A. Dyer, J. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Eno, S. Ermolov, P. Evans, H. Evdokimov, A. Evdokimov, V. N. Ferapontov, A. V. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Ford, M. Fortner, M. Fox, H. Fu, S. Fuess, S. Gadfort, T. Galea, C. F. Gallas, E. Galyaev, E. Garcia, C. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geist, W. Gele, D. Gerber, C. E. Gershtein, Y. Gillberg, D. Ginther, G. Gollub, N. Gomez, B. Goussiou, A. Grannis, P. D. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph. Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guo, J. Guo, F. Gutierrez, P. Gutierrez, G. Haas, A. Hadley, N. J. Haefner, P. Hagopian, S. Haley, J. Hall, I. Hall, R. E. Han, L. Hanagaki, K. Hansson, P. Harder, K. Harel, A. Harrington, R. Hauptman, J. M. Hauser, R. Hays, J. Hebbeker, T. Hedin, D. Hegeman, J. G. Heinmiller, J. M. Heinson, A. P. Heintz, U. Hensel, C. Herner, K. Hesketh, G. Hildreth, M. D. Hirosky, R. Hobbs, J. D. Hoeneisen, B. Hoeth, H. Hohlfeld, M. Hong, S. J. Hossain, S. Houben, P. Hu, Y. Hubacek, Z. Hynek, V. Iashvili, I. Illingworth, R. Ito, A. S. Jabeen, S. Jaffre, M. Jain, S. Jakobs, K. Jarvis, C. Jesik, R. Johns, K. Johnson, C. Johnson, M. Jonckheere, A. Jonsson, P. Juste, A. Kafer, D. Kajfasz, E. Kalinin, A. M. Kalk, J. R. Kalk, J. M. Kappler, S. Karmanov, D. Kasper, P. Katsanos, I. Kau, D. Kaur, R. Kaushik, V. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y. M. Khatidze, D. Kim, H. Kim, T. J. Kirby, M. H. Kirsch, M. Klima, B. Kohli, J. M. Konrath, J. -P. Kopal, M. Korablev, V. M. Kozelov, A. V. Krop, D. Kuhl, T. Kumar, A. Kunori, S. Kupco, A. Kurca, T. Kvita, J. Lacroix, F. Lam, D. Lammers, S. Landsberg, G. Lebrun, P. Lee, W. M. Leflat, A. Lehner, F. Lellouch, J. Leveque, J. Lewis, P. Li, J. Li, Q. Z. Li, L. Lietti, S. M. Lima, J. G. R. Lincoln, D. Linnemann, J. Lipaev, V. V. Lipton, R. Liu, Y. Liu, Z. Lobo, L. Lobodenko, A. Lokajicek, M. Love, P. Lubatti, H. J. Lyon, A. L. Maciel, A. K. A. Mackin, D. Madaras, R. J. Mattig, P. Magass, C. Magerkurth, A. Mal, P. K. Malbouisson, H. B. Malik, S. Malyshev, V. L. Mao, H. S. Maravin, Y. Martin, B. 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Tissandier, F. Titov, M. Tokmenin, V. V. Toole, T. Torchiani, I. Trefzger, T. Tsybychev, D. Tuchming, B. Tully, C. Tuts, P. M. Unalan, R. Uvarov, S. Uvarov, L. Uzunyan, S. Vachon, B. van den Berg, P. J. Van Kooten, R. van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Vaupel, M. Verdier, P. Vertogradov, L. S. Verzocchi, M. Villeneuve-Seguier, F. Vint, P. Vokac, P. Von Toerne, E. Voutilainen, M. Wagner, R. Wahl, H. D. Wang, L. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Weber, G. Wenger, A. Wermes, N. Wetstein, M. White, A. Wicke, D. Wilson, G. W. Wimpenny, S. J. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Yacoob, S. Yamada, R. Yan, M. Yasuda, T. Yatsunenko, Y. A. Yip, K. Yoo, H. D. Youn, S. W. Yu, J. Zatserklyaniy, A. Zeitnitz, C. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zieminski, A. Zivkovic, L. Zutshi, V. Zverev, E. G. TI Search for ZZ and z gamma* production in p(p)over-bar collisions at root s=1.96 TeV and limits on anomalous ZZZ and ZZ gamma* couplings SO PHYSICAL REVIEW LETTERS LA English DT Article AB We present a study of mu mu mu mu, eeee, and mu mu ee events using 1 fb(-1) of data collected with the D0 detector at the Fermilab Tevatron p (p) over bar Collider at root s = 1.96 TeV. Requiring the lepton pair masses to be greater than 30 GeV, we observe one event, consistent with the expected background of 0.13 +/- 0.03 events and with the predicted standard model ZZ and Z gamma(*) production of 1.71 +/- 0.15 events. We set an upper limit on the ZZ and Z gamma(*) cross section of 4.4 pb at the 95% C.L. We also derive limits on anomalous neutral trilinear ZZZ and ZZ gamma(*) gauge couplings. The one-parameter 95% C.L. coupling limits with a form-factor scale Lambda = 1.2 TeV are -0.28 < f(40)(Z)< 0.28, -0.31 < f(50)(Z)< 0.29, -0.26 < f(40)(gamma)< 0.26, and -0.30 < f(50)(gamma)< 0.28. 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RI Ancu, Lucian Stefan/F-1812-2010; Alves, Gilvan/C-4007-2013; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Kupco, Alexander/G-9713-2014; KIM, Tae Jeong/P-7848-2015; Guo, Jun/O-5202-2015; Sznajder, Andre/L-1621-2016; Li, Liang/O-1107-2015; Fisher, Wade/N-4491-2013; Nomerotski, Andrei/A-5169-2010; Shivpuri, R K/A-5848-2010; Gutierrez, Phillip/C-1161-2011; Leflat, Alexander/D-7284-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Merkin, Mikhail/D-6809-2012; Novaes, Sergio/D-3532-2012; Mercadante, Pedro/K-1918-2012; Mundim, Luiz/A-1291-2012; Yip, Kin/D-6860-2013; De, Kaushik/N-1953-2013 OI Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; KIM, Tae Jeong/0000-0001-8336-2434; Guo, Jun/0000-0001-8125-9433; Sznajder, Andre/0000-0001-6998-1108; Li, Liang/0000-0001-6411-6107; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; Mundim, Luiz/0000-0001-9964-7805; Yip, Kin/0000-0002-8576-4311; De, Kaushik/0000-0002-5647-4489 NR 11 TC 23 Z9 23 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 131801 DI 10.1103/PhysRevLett.100.131801 PG 7 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300015 ER PT J AU Abouzaid, E Arenton, M Barker, AR Bellantoni, L Bellavance, A Blucher, E Bock, GJ Cheu, E Coleman, R Corcoran, MD Cox, B Erwin, AR Escobar, CO Glazov, A Golossanov, A Gomes, RA Gouffon, P Hsiung, YB Jensen, DA Kessler, R Kotera, K Ledovskoy, A McBride, PL Monnier, E Nguyen, H Niclasen, R Phillips, DG Ping, H Ramberg, EJ Ray, RE Ronquest, M Santos, E Slater, W Smith, D Solomey, N Swallow, EC Toale, PA Tschirhart, R Wah, YW Wang, J White, HB Whitmore, J Wilking, MJ Winstein, B Winston, R Wolfe, C Worcester, ET Worcester, M Yamanaka, T Zimmerman, ED Zukanovich, RF AF Abouzaid, E. Arenton, M. Barker, A. R. Bellantoni, L. Bellavance, A. Blucher, E. Bock, G. J. Cheu, E. Coleman, R. Corcoran, M. D. Cox, B. Erwin, A. R. Escobar, C. O. Glazov, A. Golossanov, A. Gomes, R. A. Gouffon, P. Hsiung, Y. B. Jensen, D. A. Kessler, R. Kotera, K. Ledovskoy, A. McBride, P. L. Monnier, E. Nguyen, H. Niclasen, R. Phillips, D. G., II Ping, H. Ramberg, E. J. Ray, R. E. Ronquest, M. Santos, E. Slater, W. Smith, D. Solomey, N. Swallow, E. C. Toale, P. A. Tschirhart, R. Wah, Y. W. Wang, J. White, H. B. Whitmore, J. Wilking, M. J. Winstein, B. Winston, R. Wolfe, C. Worcester, E. T. Worcester, M. Yamanaka, T. Zimmerman, E. D. Zukanovich, R. F. CA KTeV Collaboration TI Search for lepton-flavor-violating decays of the neutral kaon SO PHYSICAL REVIEW LETTERS LA English DT Article ID K(+) AB The Fermilab KTeV experiment has searched for lepton-flavor-violating decays of the K(L) meson in three decay modes. We observe no events in the signal region for any of the modes studied, and we set the following upper limits for their branching ratios at the 90% C.L.: BR(K(L)->pi(0)mu(+/-)e(-/+))< 7.6x10(-11); BR(K(L)->pi(0)pi(0)mu(+/-)e(-/+))< 1.7x10(-10); BR(pi(0)->mu(+/-)e(-/+))< 3.6x10(-10). This result represents a factor of 82 improvement in the branching ratio limit for K(L)->pi(0)mu(+/-)e(-/+) and is the first reported limit for K(L)->pi(0)pi(0)mu(+/-)e(-/+). C1 [Bellavance, A.; Corcoran, M. D.; Wolfe, C.] Rice Univ, Houston, TX 77005 USA. [Cheu, E.; Wang, J.] Univ Arizona, Tucson, AZ 85721 USA. [Slater, W.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Escobar, C. O.; Gomes, R. A.] Univ Estadual Campinas, BR-13083970 Campinas, SP, Brazil. [Abouzaid, E.; Blucher, E.; Glazov, A.; Kessler, R.; Monnier, E.; Solomey, N.; Swallow, E. C.; Wah, Y. W.; Winston, R.; Worcester, E. T.; Worcester, M.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Barker, A. R.; Niclasen, R.; Toale, P. A.; Wilking, M. J.; Zimmerman, E. D.] Univ Colorado, Boulder, CO 80309 USA. [Swallow, E. C.] Elmhurst Coll, Elmhurst, IL 60126 USA. [Bellantoni, L.; Bock, G. J.; Coleman, R.; Hsiung, Y. B.; McBride, P. L.; Nguyen, H.; Ramberg, E. J.; Ray, R. E.; Tschirhart, R.; White, H. B.; Whitmore, J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Kotera, K.; Yamanaka, T.] Osaka Univ, Osaka 5600043, Japan. [Gouffon, P.; Santos, E.; Zukanovich, R. F.] Univ Sao Paulo, BR-05315970 Sao Paulo, Brazil. [Arenton, M.; Cox, B.; Golossanov, A.; Ledovskoy, A.; Phillips, D. G., II; Ronquest, M.; Smith, D.] Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA. [Arenton, M.; Cox, B.; Golossanov, A.; Ledovskoy, A.; Phillips, D. G., II; Ronquest, M.; Smith, D.] Univ Virginia, Inst Nucl & Particle Phys, Charlottesville, VA 22901 USA. [Erwin, A. R.; Ping, H.] Univ Wisconsin, Madison, WI 53706 USA. [Monnier, E.] CNRS, CPP Marseille, F-75700 Paris, France. RP Corcoran, MD (reprint author), Rice Univ, Houston, TX 77005 USA. RI Gomes, Ricardo/B-6899-2008; Zukanovich Funchal, Renata/C-5829-2013; Moura Santos, Edivaldo/K-5313-2016; Gouffon, Philippe/I-4549-2012; Inst. of Physics, Gleb Wataghin/A-9780-2017 OI HSIUNG, YEE/0000-0003-4801-1238; Gomes, Ricardo/0000-0003-0278-4876; Zukanovich Funchal, Renata/0000-0001-6749-0022; Moura Santos, Edivaldo/0000-0002-2818-8813; Gouffon, Philippe/0000-0001-7511-4115; NR 12 TC 11 Z9 11 U1 1 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 131803 DI 10.1103/PhysRevLett.100.131803 PG 5 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300017 PM 18517936 ER PT J AU Aubert, B Bona, M Boutigny, D Karyotakis, Y Lees, JP Poireau, V Prudent, X Tisserand, V Zghiche, A Tico, JG Grauges, E Lopez, L Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Abrams, GS Battaglia, M Brown, DN Button-Shafer, J Cahn, RN Groysman, Y Jacobsen, RG Kadyk, JA Kerth, LT Kolomensky, YG Kukartsev, G Pegna, DL Lynch, G Mir, LM Orimoto, TJ Osipenkov, IL Ronan, MT Tackmann, K Tanabe, T Wenzel, WA Sanchez, PD Hawkes, CM Watson, AT Koch, H Schroeder, T Walker, D Asgeirsson, DJ Cuhadar-Donszelmann, T Fulsom, BG Hearty, C Mattison, TS McKenna, JA Barrett, M Khan, A Saleem, M Teodorescu, L Blinov, VE Bukin, AD Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Bondioli, M Curry, S Eschrich, I Kirkby, D Lankford, AJ Lund, P Mandelkern, M Martin, EC Stoker, DP Abachi, S Buchanan, C Gary, JW Liu, F Long, O Shen, BC Vitug, GM Zhang, L Paar, HP Rahatlou, S Sharma, V Berryhill, JW Campagnari, C Cunha, A Dahmes, B Hong, TM Kovalskyi, D Richman, JD Beck, TW Eisner, AM Flacco, CJ Heusch, CA Kroseberg, J Lockman, WS Schalk, T Schumm, BA Seiden, A Wilson, MG Winstrom, LO Chen, E Cheng, CH Fang, F Hitlin, DG Narsky, I Piatenko, T Porter, FC Andreassen, R Mancinelli, G Meadows, BT Mishra, K Sokoloff, MD Blanc, F Bloom, PC Chen, S Ford, WT Hirschauer, JF Kreisel, A Nagel, M Nauenberg, U Olivas, A Smith, JG Ulmer, KA Wagner, SR Zhang, J Gabareen, AM Soffer, A Toki, WH Wilson, RJ Winklmeier, F Altenburg, DD Feltresi, E Hauke, A Jasper, H Merkel, J Petzold, A Spaan, B Wacker, K Klose, V Kobel, MJ Lacker, HM Mader, WF Nogowski, R Schubert, J Schubert, KR Schwierz, R Sundermann, JE Volk, A Bernard, D Bonneaud, GR Latour, E Lombardo, V Thiebaux, C Verderi, M Clark, PJ Gradl, W Muheim, F Playfer, S Robertson, AI Watson, JE Xie, Y Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Franchini, P Luppi, E Negrini, M Petrella, A Piemontese, L Prencipe, E Santoro, V Anulli, F Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Buzzo, A Contri, R Lo Vetere, M Macri, MM Monge, MR Passaggio, S Patrignani, C Robutti, E Santroni, A Tosi, S Chaisanguanthum, KS Morii, M Wu, J Dubitzky, RS Marks, J Schenk, S Uwer, U Bard, DJ Dauncey, PD Flack, RL Nash, JA Vazquez, WP Tibbetts, M Behera, PK Chai, X Charles, MJ Mallik, U Cochran, J Crawley, HB Dong, L Eyges, V Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gao, YY Gritsan, AV Guo, ZJ Lae, CK Denig, AG Fritsch, M Schott, G Arnaud, N Bequilleux, J D'Orazio, A Davier, M Grosdidier, G Hocker, A Lepeltier, V Le Diberder, F Lutz, AM Pruvot, S Rodier, S Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wang, L Wang, WF Wormser, G Lange, DJ Wright, DM Bingham, I Burke, JP Chavez, CA Fry, JR Gabathuler, E Gamet, R Hutchcroft, DE Payne, DJ Schofield, KC Touramanis, C Bevan, AJ George, KA Di Lodovico, F Sacco, R Cowan, G Flaecher, HU Hopkins, DA Paramesvaran, S Salvatore, F Wren, AC Brown, DN Davis, CL Allison, J Barlow, NR Barlow, RJ Chia, YM Edgar, CL Lafferty, GD West, TJ Yi, JI Anderson, J Chen, C Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Hertzbach, SS Li, X Moore, TB Salvati, E Saremi, S Cowan, R Dujmic, D Fisher, PH Koeneke, K Sciolla, G Spitznagel, M Taylor, F Yamamoto, RK Zhao, M Zheng, Y Mclachlin, SE Patel, PM Robertson, SH Lazzaro, A Palombo, F Bauer, JM Cremaldi, L Eschenburg, V Godang, R Kroeger, R Sanders, DA Summers, DJ Zhao, HW Brunet, S Cote, D Simard, M Taras, P Viaud, FB Nicholson, H De Nardo, G Fabozzi, F Lista, L Monorchio, D Sciacca, C Baak, MA Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Benelli, G Corwin, LA Honscheid, K Kagan, H Kass, R Morris, JP Rahimi, AM Regensburger, JJ Sekula, SJ Wong, QK Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Lu, M Rahmat, R 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L. MacFarlane, D. B. Marsiske, H. Messner, R. Muller, D. R. Nelson, S. O'Grady, C. P. Ofte, I. Perazzo, A. Perl, M. Pulliam, T. Ratcliff, B. N. Roodman, A. Salnikov, A. A. Schindler, R. H. Schwiening, J. Snyder, A. Su, D. Sullivan, M. K. Suzuki, K. Swain, S. K. Thompson, J. M. Va'vra, J. Wagner, A. P. Weaver, M. Wisniewski, W. J. Wittgen, M. Wright, D. H. Yarritu, A. K. Yi, K. Young, C. C. Ziegler, V. Burchat, P. R. Edwards, A. J. Majewski, S. A. Miyashita, T. S. Petersen, B. A. Wilden, L. Ahmed, S. Alam, M. S. Bula, R. Ernst, J. A. Pan, B. Saeed, M. A. Wappler, F. R. Zain, S. B. Spanier, S. M. Wogsland, B. J. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Izen, J. M. Lou, X. C. Ye, S. Bianchi, F. Gallo, F. Gamba, D. Pelliccioni, M. Bomben, M. Bosisio, L. Cartaro, C. Cossutti, F. Della Ricca, G. Lanceri, L. Vitale, L. Azzolini, V. Lopez-March, N. Martinez-Vidal, F. Milanes, D. A. Oyanguren, A. Albert, J. Banerjee, Sw. Bhuyan, B. Hamano, K. Kowalewski, R. Nugent, I. M. Roney, J. M. Sobie, R. J. Harrison, P. F. Ilic, J. Latham, T. E. Mohanty, G. B. Band, H. R. Chen, X. Dasu, S. Flood, K. T. Hollar, J. J. Kutter, P. E. Pan, Y. Pierini, M. Prepost, R. Wu, S. L. Neal, H. CA BaBar Collaboration TI Search for CPT and lorentz violation in B(0)-(B)over-bar(0) oscillations with dilepton events SO PHYSICAL REVIEW LETTERS LA English DT Article ID SPACED DATA; TESTS AB We report results of a search for CPT and Lorentz violation in B(0)-(B) over bar (0) oscillations using inclusive dilepton events from 232x10(6) Upsilon(4S)-> B (B) over bar decays recorded by the BABAR detector at the PEP-II B Factory at SLAC. We find 2.8 sigma significance, compatible with no signal, for variations in the complex CPT violation parameter z at the Earth's sidereal frequency and extract values for the quantities Delta a(mu) in the general Lorentz-violating standard-model extension. 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[Bianchi, F.; Gallo, F.; Gamba, D.; Pelliccioni, M.] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Bianchi, F.; Gallo, F.; Gamba, D.; Pelliccioni, M.] Ist Nazl Fis Nucl, I-10125 Turin, Italy. [Bomben, M.; Bosisio, L.; Cartaro, C.; Cossutti, F.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy. [Bomben, M.; Bosisio, L.; Cartaro, C.; Cossutti, F.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, I-34127 Trieste, Italy. [Azzolini, V.; Lopez-March, N.; Martinez-Vidal, F.; Milanes, D. A.; Oyanguren, A.] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain. [Albert, J.; Banerjee, Sw.; Bhuyan, B.; Hamano, K.; Kowalewski, R.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Harrison, P. F.; Ilic, J.; Latham, T. E.; Mohanty, G. B.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Chen, X.; Dasu, S.; Flood, K. T.; Hollar, J. J.; Kutter, P. E.; Pan, Y.; Pierini, M.; Prepost, R.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Neal, H.] Yale Univ, New Haven, CT 06511 USA. [Peruzzi, I. M.] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy. [Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. [Andreotti, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cecchi, A.; Cibinetto, G.; Franchini, P.; Luppi, E.; Negrini, M.; Petrella, A.; Piemontese, L.; Prencipe, E.; Santoro, V.] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy. RP Aubert, B (reprint author), Lab Annecy Le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. RI Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; White, Ryan/E-2979-2015; Calabrese, Roberto/G-4405-2015; Mir, Lluisa-Maria/G-7212-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Lusiani, Alberto/A-3329-2016; Morandin, Mauro/A-3308-2016; Della Ricca, Giuseppe/B-6826-2013; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Negrini, Matteo/C-8906-2014; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; Patrignani, Claudia/C-5223-2009; Lista, Luca/C-5719-2008; Bellini, Fabio/D-1055-2009; Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012 OI Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Raven, Gerhard/0000-0002-2897-5323; White, Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400; Mir, Lluisa-Maria/0000-0002-4276-715X; Martinez Vidal, F*/0000-0001-6841-6035; Kolomensky, Yury/0000-0001-8496-9975; Lo Vetere, Maurizio/0000-0002-6520-4480; Lusiani, Alberto/0000-0002-6876-3288; Lusiani, Alberto/0000-0002-6876-3288; Morandin, Mauro/0000-0003-4708-4240; Della Ricca, Giuseppe/0000-0003-2831-6982; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Negrini, Matteo/0000-0003-0101-6963; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; Patrignani, Claudia/0000-0002-5882-1747; Bellini, Fabio/0000-0002-2936-660X; Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163 NR 16 TC 41 Z9 41 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 131802 DI 10.1103/PhysRevLett.100.131802 PG 7 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300016 ER PT J AU Belonoshko, AB Burakovsky, L Chen, SP Johansson, B Mikhaylushkin, AS Preston, DL Simak, SI Swift, DC AF Belonoshko, A. B. Burakovsky, L. Chen, S. P. Johansson, B. Mikhaylushkin, A. S. Preston, D. L. Simak, S. I. Swift, D. C. TI Molybdenum at high pressure and temperature: Melting from another solid phase SO PHYSICAL REVIEW LETTERS LA English DT Article ID MOLECULAR-DYNAMICS SIMULATION; BRILLOUIN-ZONE INTEGRATIONS; AUGMENTED-WAVE METHOD; EQUATION-OF-STATE; SHOCK COMPRESSION; TRANSITION-METALS; MO; IRON; CR; PEROVSKITE AB The Gibbs free energies of bcc and fcc Mo are calculated from first principles in the quasiharmonic approximation in the pressure range from 350 to 850 GPa at room temperatures up to 7500 K. It is found that Mo, stable in the bcc phase at low temperatures, has lower free energy in the fcc structure than in the bcc phase at elevated temperatures. Our density-functional-theory-based molecular dynamics simulations demonstrate that fcc melts at higher than bcc temperatures above 1.5 Mbar. Our calculated melting temperatures and bcc-fcc boundary are consistent with the Mo Hugoniot sound speed measurements. We find that melting occurs at temperatures significantly above the bcc-fcc boundary. This suggests an explanation of the recent diamond anvil cell experiments, which find a phase boundary in the vicinity of our extrapolated bcc-fcc boundary. C1 [Belonoshko, A. B.; Johansson, B.] Royal Inst Technol, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden. [Belonoshko, A. B.] Royal Inst Technol, AlbaNova Univ Ctr, Inst Theoret Phys, S-10691 Stockholm, Sweden. [Burakovsky, L.; Chen, S. P.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Johansson, B.] Uppsala Univ, Dept Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden. [Mikhaylushkin, A. S.; Simak, S. I.] Linkoping Univ, IFM, Dept Phys Chem & Biol, S-58183 Linkoping, Sweden. [Preston, D. L.; Swift, D. C.] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA. RP Belonoshko, AB (reprint author), Royal Inst Technol, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden. RI Simak, Sergei/C-3030-2014; OI Simak, Sergei/0000-0002-1320-389X; Belonoshko, Anatoly/0000-0001-7531-3210 NR 54 TC 85 Z9 89 U1 6 U2 30 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 135701 DI 10.1103/PhysRevLett.100.135701 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300049 PM 18517968 ER PT J AU Demkowicz, MJ Hoagland, RG Hirth, JP AF Demkowicz, M. J. Hoagland, R. G. Hirth, J. P. TI Interface structure and radiation damage resistance in Cu-Nb multilayer nanocomposites SO PHYSICAL REVIEW LETTERS LA English DT Article ID NANOSCALE CU/NB MULTILAYERS; CUBIC METALS; COMPOSITES; DISLOCATIONS; STABILITY AB We use atomistic simulations to show that upon removal or insertion of atoms, misfit dislocations in Cu-Nb interfaces shift between two adjacent planes, forming pairs of extended jogs. Different jog combinations give rise to interface structures with unlike densities but nearly degenerate energies, making Cu-Nb interfaces virtually inexhaustible sinks for radiation-induced point defects and catalysts for efficient Frenkel pair recombination. C1 [Demkowicz, M. J.; Hoagland, R. G.; Hirth, J. P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Demkowicz, MJ (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM demkowicz@lanl.gov RI Hoagland, Richard/G-9821-2012 NR 24 TC 233 Z9 236 U1 13 U2 126 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 136102 DI 10.1103/PhysRevLett.100.136102 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300051 PM 18517970 ER PT J AU Dmowski, W Vakhrushev, SB Jeong, IK Hehlen, MP Trouw, F Egami, T AF Dmowski, W. Vakhrushev, S. B. Jeong, I. -K. Hehlen, M. P. Trouw, F. Egami, T. TI Local lattice dynamics and the origin of the relaxor ferroelectric behavior SO PHYSICAL REVIEW LETTERS LA English DT Article ID PBMG1/3NB2/3O3 AB Relaxor ferroelectricity is observed in many strongly disordered ferroelectric solids. However, the atomistic mechanism of the phenomenon, particularly at high temperatures, is not well understood. In this Letter we show the local lattice dynamics as the origin of relaxor ferroelectricity through the first use of the dynamic pair-density function determined by pulsed neutron inelastic scattering. For a prototypical relaxor ferroelectric, Pb(Mg1/3Nb2/3)O-3, we demonstrate that the dynamic local polarization sets in around the so-called Burns temperature through the interaction of off-centered Pb ions with soft phonons, and the slowing down of local polarization with decreasing temperature produces the polar nanoregions and the relaxor behavior below room temperature. C1 [Dmowski, W.; Egami, T.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Vakhrushev, S. B.] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia. [Jeong, I. -K.] Pusan Natl Univ, Dept Phys, Pusan, South Korea. [Hehlen, M. P.; Trouw, F.] Los Alamos Natl Lab, LANSCE, Los Alamos, NM 87545 USA. [Egami, T.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Egami, T.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Dmowski, W (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. RI Vakhrushev, Sergey/A-9855-2011; Lujan Center, LANL/G-4896-2012 OI Vakhrushev, Sergey/0000-0003-4867-1404; NR 27 TC 53 Z9 53 U1 2 U2 42 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 137602 DI 10.1103/PhysRevLett.100.137602 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300078 PM 18517997 ER PT J AU Donath, JG Steglich, F Bauer, ED Sarrao, JL Gegenwart, P AF Donath, J. G. Steglich, F. Bauer, E. D. Sarrao, J. L. Gegenwart, P. TI Dimensional crossover of quantum critical behavior in CeCoIn(5) SO PHYSICAL REVIEW LETTERS LA English DT Article ID CRITICAL-POINTS; HEAVY; SUPERCONDUCTIVITY; METALS; ELECTRON; SYSTEMS AB The nature of quantum criticality in CeCoIn(5) is studied by low-temperature thermal expansion alpha(T). At the field-induced quantum critical point at H = 5T a crossover scale T(star) approximate to 0.3 K is observed, separating alpha(T)/T proportional to T(-1) from a weaker T(-1/2) divergence. We ascribe this change to a crossover in the dimensionality of the critical fluctuations which may be coupled to a change from unconventional to conventional quantum criticality. Disorder, whose effect on quantum criticality is studied in CeCoIn(5-x)Sn(x) (0 <= x <= 0.18), shifts T(star) towards higher temperatures. C1 [Donath, J. G.; Steglich, F.] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany. [Bauer, E. D.; Sarrao, J. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Gegenwart, P.] Univ Gottingen, Inst Phys 1, D-37077 Gottingen, Germany. RP Donath, JG (reprint author), Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany. RI Bauer, Eric/D-7212-2011; Gegenwart, Philipp/A-7291-2017; OI Bauer, Eric/0000-0003-0017-1937 NR 26 TC 25 Z9 25 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 136401 DI 10.1103/PhysRevLett.100.136401 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300055 PM 18517974 ER PT J AU Dvorak, J Bruchle, W Chelnokov, M Dullmann, CE Dvorakova, Z Eberhardt, K Jager, E Krucken, R Kuznetsov, A Nagame, Y Nebel, F Nishio, K Perego, R Qin, Z Schadel, M Schausten, B Schimpf, E Schuber, R Semchenkov, A Thorle, P Turler, A Wegrzecki, M Wierczinski, B Yakushev, A Yeremin, A AF Dvorak, J. Bruechle, W. Chelnokov, M. Duellmann, Ch. E. Dvorakova, Z. Eberhardt, K. Jaeger, E. Kruecken, R. Kuznetsov, A. Nagame, Y. Nebel, F. Nishio, K. Perego, R. Qin, Z. Schaedel, M. Schausten, B. Schimpf, E. Schuber, R. Semchenkov, A. Thoerle, P. Tuerler, A. Wegrzecki, M. Wierczinski, B. Yakushev, A. Yeremin, A. TI Observation of the 3n evaporation channel in the complete hot-fusion reaction Mg-26+Cm-248 leading to the new superheavy nuclide (271)Hs SO PHYSICAL REVIEW LETTERS LA English DT Article ID HEAVIEST NUCLEI AB The analysis of a large body of heavy ion fusion reaction data with medium-heavy projectiles (6 <= Z <= 18) and actinide targets suggests a disappearance of the 3n exit channel with increasing atomic number of the projectile. Here, we report a measurement of the excitation function of the reaction Cm-248(Mg-26,xn)(274-x)Hs and the observation of the new nuclide (271)Hs produced in the 3n evaporation channel at a beam energy well below the Bass fusion barrier with a cross section comparable to the maxima of the 4n and 5n channels. This indicates the possible discovery of new neutron-rich transactinide nuclei using relatively light heavy ion beams of the most neutron-rich stable isotopes and actinide targets. C1 [Dvorak, J.; Dvorakova, Z.; Kruecken, R.; Nebel, F.; Perego, R.; Schuber, R.; Semchenkov, A.; Tuerler, A.; Wierczinski, B.; Yakushev, A.] Tech Univ Munich, D-85748 Garching, Germany. [Bruechle, W.; Duellmann, Ch. E.; Jaeger, E.; Qin, Z.; Schaedel, M.; Schausten, B.; Schimpf, E.; Semchenkov, A.] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany. [Chelnokov, M.; Kuznetsov, A.; Yeremin, A.] Joint Inst Nucl Res, Dubna 141980, Russia. [Duellmann, Ch. E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Eberhardt, K.] Johannes Gutenberg Univ Mainz, D-55128 Mainz, Germany. [Nagame, Y.; Nishio, K.] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan. [Qin, Z.] Lanzhou Univ, Inst Modern Phys, Lanzhou 730000, Peoples R China. [Thoerle, P.] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55128 Mainz, Germany. [Wegrzecki, M.] Inst Electr Mat Technol, PL-02668 Warsaw, Poland. RP Dvorak, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RI Turler, Andreas/D-3913-2014; Kruecken, Reiner/A-1640-2013 OI Turler, Andreas/0000-0002-4274-1056; Kruecken, Reiner/0000-0002-2755-8042 NR 16 TC 78 Z9 78 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 132503 DI 10.1103/PhysRevLett.100.132503 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300022 PM 18517941 ER PT J AU Franceschetti, A Zhang, Y AF Franceschetti, Alberto Zhang, Yong TI Multiexciton absorption and multiple exciton generation in CdSe quantum dots SO PHYSICAL REVIEW LETTERS LA English DT Article ID EFFICIENCY CARRIER MULTIPLICATION; SOLAR-CELLS; IMPACT IONIZATION; NANOCRYSTALS; PBSE; LIMIT AB Efficient multiple-exciton generation (MEG) in semiconductor quantum dots has been recently reported. The MEG efficiency has so far been evaluated assuming that the change (bleaching) of the absorption spectrum due to MEG is linearly proportional to the number of excitons N-X. Here, we critically examine this assumption using atomistic pseudopotential calculations for colloidal CdSe nanocrystals. We find that the bleaching of the first absorption peak depends nonlinearly on N-X, due to carrier-carrier interactions. This nonlinearity mandates an upper bound of 1.5 to the value of the normalized bleaching that can be attributed to MEG, significantly smaller than the limit of 2.0 predicted by the linear scaling assumption. Thus, measured values of the normalized bleaching in excess of 1.5 cannot be due entirely to MEG, but must originate in part from other mechanisms. C1 [Franceschetti, Alberto; Zhang, Yong] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Franceschetti, A (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. NR 29 TC 31 Z9 31 U1 0 U2 24 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 136805 DI 10.1103/PhysRevLett.100.136805 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300066 PM 18517985 ER PT J AU Friddle, RW AF Friddle, Raymond W. TI Unified model of dynamic forced barrier crossing in single molecules SO PHYSICAL REVIEW LETTERS LA English DT Article ID ADHESION BONDS; SPECTROSCOPY; FIELD; JUNCTION; SOLIDS AB Thermally activated barrier crossing in the presence of an increasing load can reveal kinetic rate constants and energy barrier parameters when repeated over a range of loading rates. Here we derive a model of the mean escape force for all relevant loading rates-the complete force spectrum. Two well-known approximations emerge as limiting cases, one of which confirms predictions that single-barrier spectra should converge to a phenomenological description in the slow loading limit. C1 Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Livermore, CA 94550 USA. RP Friddle, RW (reprint author), Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Livermore, CA 94550 USA. NR 27 TC 37 Z9 37 U1 3 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 138302 DI 10.1103/PhysRevLett.100.138302 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300084 PM 18518003 ER PT J AU Gurcan, OD Diamond, PH Hahm, TS AF Guercan, Oe. D. Diamond, P. H. Hahm, T. S. TI Turbulent equipartition and homogenization of plasma angular momentum SO PHYSICAL REVIEW LETTERS LA English DT Article ID NONLINEAR GYROKINETIC EQUATIONS; C-MOD PLASMAS; TOROIDAL ROTATION; TRANSPORT; TOKAMAKS; INPUT AB A physical model of turbulent equipartition (TEP) of plasma angular momentum is developed. We show that using a simple, model insensitive ansatz of conservation of total angular momentum, a TEP pinch of angular momentum can be obtained. We note that this term corresponds to a part of the pinch velocity previously calculated using quasilinear gyrokinetic theory. We observe that the nondiffusive TEP flux is inward, and therefore may explain the peakedness of the rotation profiles observed in certain experiments. Similar expressions for linear toroidal momentum and flow are computed and it is noted that there is an additional effect due the radial profile of moment of inertia density. C1 [Guercan, Oe. D.; Diamond, P. H.] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA. [Hahm, T. S.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Gurcan, OD (reprint author), Univ Calif San Diego, Ctr Astrophys & Space Sci, 9500 Gilman Dr, La Jolla, CA 92093 USA. EM ogurcan@ucsd.edu RI Gurcan, Ozgur/A-1362-2013 OI Gurcan, Ozgur/0000-0002-2278-1544 NR 21 TC 42 Z9 42 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 135001 DI 10.1103/PhysRevLett.100.135001 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300042 PM 18517961 ER PT J AU Kim, KY Yellampalle, B Glownia, JH Taylor, AJ Rodriguez, G AF Kim, K. Y. Yellampalle, B. Glownia, J. H. Taylor, A. J. Rodriguez, G. TI Measurements of terahertz electrical conductivity of intense laser-heated dense aluminum plasmas SO PHYSICAL REVIEW LETTERS LA English DT Article ID SIMPLE METAL; RESISTIVITY AB We report the electrical conductivity of laser-produced warm dense aluminum plasmas measured using single-shot ultrafast terahertz (THz) frequency spectroscopy. In contrast with experiments performed at optical frequencies, measurements based upon THz probe reflectivity directly determine a quasi-dc electrical conductivity, and therefore the analysis does not require a free-electron Drude model based extrapolation to recover the near zero frequency conductivity. In fact, our experimental results indicate that the Drude model breaks down for warm (> 0.6 eV), moderate-dense (< 1.6 g/cm(3)) aluminum at THz frequencies. A calculation of THz reflectivity over a non-Fresnel boundary in dense plasmas is also presented. C1 [Kim, K. Y.; Yellampalle, B.; Glownia, J. H.; Taylor, A. J.; Rodriguez, G.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Kim, KY (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat Div, POB 1663, Los Alamos, NM 87545 USA. RI Rodriguez, George/G-7571-2012 OI Rodriguez, George/0000-0002-6044-9462 NR 18 TC 24 Z9 24 U1 3 U2 14 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 135002 DI 10.1103/PhysRevLett.100.135002 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300043 PM 18517962 ER PT J AU Kreidi, K Akoury, D Jahnke, T Weber, T Staudte, A Schoeffler, M Neumann, N Titze, J Schmidt, LPH Czasch, A Jagutzki, O Fraga, RAC Grisenti, RE Smolarski, M Ranitovic, P Cocke, CL Osipov, T Adaniya, H Thompson, JC Prior, MH Belkacem, A Landers, AL Schmidt-Bocking, H Dorner, R AF Kreidi, K. Akoury, D. Jahnke, T. Weber, Th. Staudte, A. Schoeffler, M. Neumann, N. Titze, J. Schmidt, L. Ph. H. Czasch, A. Jagutzki, O. Fraga, R. A. Costa Grisenti, R. E. Smolarski, M. Ranitovic, P. Cocke, C. L. Osipov, T. Adaniya, H. Thompson, J. C. Prior, M. H. Belkacem, A. Landers, A. L. Schmidt-Boecking, H. Doerner, R. TI Interference in the collective electron momentum in double photoionization of H-2 SO PHYSICAL REVIEW LETTERS LA English DT Article ID PHOTO-DOUBLE-IONIZATION; CROSS-SECTIONS; WAVE-FUNCTION; DOUBLE-SLIT; MOLECULE; HE; DISTRIBUTIONS; HYDROGEN; STATE; PHOTOELECTRONS AB We investigate single-photon double ionization of H-2 by 130 to 240 eV circularly polarized photons. We find a double slitlike interference pattern in the sum momentum of both electrons in the molecular frame which survives integration over all other degrees of freedom. The difference momentum and the individual electron momentum distributions do not show such a robust interference pattern. We show that this interference results from a non-Heitler-London fraction of the H-2 ground state where both electrons are at the same atomic center. C1 [Kreidi, K.; Akoury, D.; Jahnke, T.; Staudte, A.; Schoeffler, M.; Neumann, N.; Titze, J.; Schmidt, L. Ph. H.; Czasch, A.; Jagutzki, O.; Fraga, R. A. Costa; Grisenti, R. E.; Smolarski, M.; Schmidt-Boecking, H.; Doerner, R.] Goethe Univ Frankfurt, Inst Kernphys, D-60438 Frankfurt, Germany. [Kreidi, K.] DESY, D-22607 Hamburg, Germany. [Akoury, D.; Weber, Th.; Adaniya, H.; Prior, M. H.; Belkacem, A.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Staudte, A.] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada. [Grisenti, R. E.] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany. [Ranitovic, P.; Cocke, C. L.] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA. [Thompson, J. C.; Landers, A. L.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA. RP Kreidi, K (reprint author), Goethe Univ Frankfurt, Inst Kernphys, Max Von Laue Str 1, D-60438 Frankfurt, Germany. EM doerner@atom.uni-frankfurt.de RI Schoeffler, Markus/B-6261-2008; Landers, Allen/C-1213-2013; Weber, Thorsten/K-2586-2013; Doerner, Reinhard/A-5340-2008; ranitovic, predrag/A-2282-2014; OI Schoeffler, Markus/0000-0001-9214-6848; Weber, Thorsten/0000-0003-3756-2704; Doerner, Reinhard/0000-0002-3728-4268; Staudte, Andre/0000-0002-8284-3831 NR 39 TC 40 Z9 40 U1 4 U2 14 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 133005 DI 10.1103/PhysRevLett.100.133005 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300027 PM 18517946 ER PT J AU Kurkal-Siebert, V Agarwal, R Smith, JC AF Kurkal-Siebert, Vandana Agarwal, Ritesh Smith, Jeremy C. TI Hydration-dependent dynamical transition in protein: Protein interactions at approximate to 240 k SO PHYSICAL REVIEW LETTERS LA English DT Article ID INELASTIC NEUTRON-SCATTERING; TEMPERATURE-DEPENDENCE; GLASS-TRANSITION; SIMULATION ANALYSIS; MYOGLOBIN; MOTIONS; WATER; MODES AB Interprotein motions in low and fully hydrated carboxymyoglobin crystals are investigated using molecular dynamics simulation. Below approximate to 240 K, the calculated dynamic structure factor exhibits a peak arising from interprotein vibration. Above approximate to 240 K, the intermolecular fluctuations of the fully hydrated crystal increase drastically, whereas the low-hydration model exhibits no transition. Autocorrelation function analysis shows the transition to be dominated by the activation of diffusive intermolecular motion. The potential of mean force for the interaction remains quasiharmonic. The results indicate useful experimental avenues on protein:protein interactions to be explored using next-generation neutron sources. C1 [Kurkal-Siebert, Vandana; Agarwal, Ritesh; Smith, Jeremy C.] Univ Heidelberg, Interdisciplinary Ctr Sci Comp IWR, D-69120 Heidelberg, Germany. [Smith, Jeremy C.] Oak Ridge Natl Lab, Ctr Biophys Mol, Oak Ridge, TN 37831 USA. [Kurkal-Siebert, Vandana] BASF SE, Mol Modelling GKP M, D-67056 Ludwigshafen, Germany. [Smith, Jeremy C.] Univ Tennessee, Dept Biochem Cellular & Mol Biol, Knoxville, TN 37996 USA. RP Kurkal-Siebert, V (reprint author), Univ Heidelberg, Interdisciplinary Ctr Sci Comp IWR, Neuenheimer Feld 368, D-69120 Heidelberg, Germany. RI smith, jeremy/B-7287-2012 OI smith, jeremy/0000-0002-2978-3227 NR 30 TC 15 Z9 15 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 138102 DI 10.1103/PhysRevLett.100.138102 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300082 PM 18518001 ER PT J AU Lindenberg, AM Engemann, S Gaffney, KJ Sokolowski-Tinten, K Larsson, J Hillyard, PB Reis, DA Fritz, DM Arthur, J Akre, RA George, MJ Deb, A Bucksbaum, PH Hajdu, J Meyer, DA Nicoul, M Blome, C Tschentscher, T Cavalieri, AL Falcone, RW Lee, SH Pahl, R Rudati, J Fuoss, PH Nelson, AJ Krejcik, P Siddons, DP Lorazo, P Hastings, JB AF Lindenberg, A. M. Engemann, S. Gaffney, K. J. Sokolowski-Tinten, K. Larsson, J. Hillyard, P. B. Reis, D. A. Fritz, D. M. Arthur, J. Akre, R. A. George, M. J. Deb, A. Bucksbaum, P. H. Hajdu, J. Meyer, D. A. Nicoul, M. Blome, C. Tschentscher, Th. Cavalieri, A. L. Falcone, R. W. Lee, S. H. Pahl, R. Rudati, J. Fuoss, P. H. Nelson, A. J. Krejcik, P. Siddons, D. P. Lorazo, P. Hastings, J. B. TI X-ray diffuse scattering measurements of nucleation dynamics at femtosecond resolution SO PHYSICAL REVIEW LETTERS LA English DT Article ID TRANSIENT MOLECULAR-STRUCTURES; ELECTRON-DIFFRACTION; DENSITY; ABLATION; PHASE AB Femtosecond time-resolved small and wide angle x-ray diffuse scattering techniques are applied to investigate the ultrafast nucleation processes that occur during the ablation process in semiconducting materials. Following intense optical excitation, a transient liquid state of high compressibility characterized by large-amplitude density fluctuations is observed and the buildup of these fluctuations is measured in real time. Small-angle scattering measurements reveal snapshots of the spontaneous nucleation of nanoscale voids within a metastable liquid and support theoretical predictions of the ablation process. C1 [Lindenberg, A. M.; Engemann, S.; Gaffney, K. J.; Larsson, J.; Hillyard, P. B.; Reis, D. A.; Fritz, D. M.; Deb, A.; Bucksbaum, P. H.; Hajdu, J.; Meyer, D. A.] Stanford Linear Accelerator Ctr, PULSE Ctr, Menlo Pk, CA 94025 USA. [Lindenberg, A. M.] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA. [Lindenberg, A. M.; Engemann, S.; Gaffney, K. J.; Arthur, J.; George, M. J.; Deb, A.; Bucksbaum, P. H.; Hastings, J. B.] SLAC, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA. [Sokolowski-Tinten, K.; Nicoul, M.] Univ Duisburg Essen, Inst Expt Phys, D-45117 Essen, Germany. [Larsson, J.] Lund Inst Technol, Dept Phys, S-22100 Lund, Sweden. [Hillyard, P. B.; Meyer, D. A.] Stanford Univ, Dept Chem, Stanford, CA 94305 USA. [Reis, D. A.; Fritz, D. M.; Cavalieri, A. L.] Univ Michigan, Dept Phys, FOCUS Ctr, Ann Arbor, MI 48109 USA. [Reis, D. A.; Fritz, D. M.; Cavalieri, A. L.] Univ Michigan, Appl Phys Program, Ann Arbor, MI 48109 USA. [Hajdu, J.] Uppsala Univ, Biomed Ctr, Dept Cell & Mol Biol, SE-75124 Uppsala, Sweden. [Blome, C.; Tschentscher, Th.] Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany. [Cavalieri, A. L.] Max Planck Inst Quantum Opt, D-85748 Garching, Germany. [Falcone, R. W.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Lee, S. H.] Korea Res Inst Stand & Sci, Length Time Metrol Grp, Taejon 305600, South Korea. [Pahl, R.] Univ Chicago, Consortium Adv Radiat Sources, Chicago, IL 60637 USA. [Rudati, J.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Fuoss, P. H.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Nelson, A. J.] Lawrence Livermore Natl Lab, Dept Phys, Livermore, CA 94550 USA. [Siddons, D. P.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Lorazo, P.] Ecole Polytech, Dept Genie Phys, Montreal, PQ H3C 3A7, Canada. RP Lindenberg, AM (reprint author), Stanford Linear Accelerator Ctr, PULSE Ctr, Menlo Pk, CA 94025 USA. EM aaronl@stanford.edu RI Sokolowski-Tinten, Klaus/A-5415-2015; Deb, Aniruddha/H-7529-2016 OI Deb, Aniruddha/0000-0002-0331-9709 NR 29 TC 36 Z9 36 U1 2 U2 17 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 135502 DI 10.1103/PhysRevLett.100.135502 PG 5 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300046 PM 18517965 ER PT J AU Nair, S Wirth, S Nicklas, M Sarrao, JL Thompson, JD Fisk, Z Steglich, F AF Nair, Sunil Wirth, S. Nicklas, M. Sarrao, J. L. Thompson, J. D. Fisk, Z. Steglich, F. TI Precursor state to unconventional superconductivity in CeIrIn5 SO PHYSICAL REVIEW LETTERS LA English DT Article ID QUANTUM CRITICAL-POINT; FERMION; CECOIN5; ANGLE AB We present Hall effect and magnetoresistance measurements in the heavy fermion superconductor CeIrIn5. At low temperature, a Kondo coherent state is established. Deviations from Kohler's rule and a quadratic temperature dependence of the cotangent of the Hall angle are reminiscent of properties observed in the high-temperature superconducting cuprates. A striking observation pertains to the presence of a precursor state-characterized by a change in the Hall mobility-that precedes the superconductivity in this material, in similarity to the pseudogap in the cuprate superconductors. C1 [Nair, Sunil; Wirth, S.; Nicklas, M.; Steglich, F.] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany. [Sarrao, J. L.; Thompson, J. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Fisk, Z.] Univ Calif Irvine, Irvine, CA 92697 USA. RP Nair, S (reprint author), Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany. RI Nair, Sunil/E-5279-2011; Nicklas, Michael/B-6344-2008 OI Nicklas, Michael/0000-0001-6272-2162 NR 31 TC 18 Z9 18 U1 1 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD APR 4 PY 2008 VL 100 IS 13 AR 137003 DI 10.1103/PhysRevLett.100.137003 PG 4 WC Physics, Multidisciplinary SC Physics GA 283XR UT WOS:000254670300070 PM 18517989 ER PT J AU Peng, J Wu, MM Wang, H Hao, YM Hu, Z Yu, ZX Chen, DF Kiyanagic, R Fieramosca, JS Short, S Jorgensen, J AF Peng, J. Wu, M. M. Wang, H. Hao, Y. M. Hu, Z. Yu, Z. X. Chen, D. F. Kiyanagic, Ryoji Fieramosca, Joseph S. Short, S. Jorgensen, J. TI Structures and negative thermal expansion properties of solid solutions YxNd2-xW3O12 (x=0.0-1.0, 1.6-2.0) SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE negative thermal expansion; tungstate; XRD; ND ID CRYSTAL-STRUCTURE; TUNGSTATE AB A new series of rare earth solid solutions of YxNd2-xW3O12 (x=0.0-1.0, 1.6-2.0) were successfully synthesized by the solid-state method and studied by X-ray and neutron powder diffractions. The samples were found to crystallize in monoclinic with space group C2/c for x=0.0-1.0 and in orthorhombic with space group Pnca for x=1.6-2.0. Thermal properties of YxNd2-xW3O12 (x=0.25 and 1.90) were studied with high-temperature XRD. It was found that the thermal behaviors of YxNd2-xW3O12 depend not only strongly on their structures, but also on their compositions. Positive thermal expansions of compound Y0.25M1.75W3O12 are found to be anisotropic along the three crystallographic axis, where a-axis expands in the 25-200 degrees C range but contracts in the 200-800 degrees C range, while b- and c-axes show expansion in the whole temperature range. Negative thermal expansion coefficient of Y1.9Nd0.1W3O12 was calculated to be -17.9 x 10(-6) K-1 from 200 to 1000 degrees C, comparing to -20.9 x 10(-6) K-1 of Y2W3O12. (C) 2006 Elsevier B.V. All rights reserved. C1 [Peng, J.; Wu, M. M.; Wang, H.; Hao, Y. M.; Hu, Z.] Grad Univ, Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China. [Yu, Z. X.; Chen, D. F.] Inst Atom Energy, Beijing 102413, Peoples R China. [Kiyanagic, Ryoji; Fieramosca, Joseph S.; Short, S.; Jorgensen, J.] Argonne Natl Lab, IPNS MSD, Argonne, IL 60439 USA. RP Hu, Z (reprint author), Grad Univ, Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China. EM huzq@gucas.ac.cn NR 17 TC 14 Z9 15 U1 0 U2 10 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-8388 J9 J ALLOY COMPD JI J. Alloy. Compd. PD APR 3 PY 2008 VL 453 IS 1-2 BP 49 EP 54 DI 10.1016/j.jallcom.2006.11.208 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 287EM UT WOS:000254899700012 ER PT J AU Li, WH Raeder, J Thomsen, MF Lavraud, B AF Li, Wenhui Raeder, Joachim Thomsen, Michelle F. Lavraud, Benoit TI Solar wind plasma entry into the magnetosphere under northward IMF conditions SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID INTERPLANETARY MAGNETIC-FIELD; LATITUDE BOUNDARY-LAYER; NEAR-EARTH MAGNETOTAIL; KELVIN-HELMHOLTZ INSTABILITY; GEOTAIL OBSERVATIONS; B-Y; CLUSTER OBSERVATIONS; BIRKELAND CURRENTS; CUSP RECONNECTION; MHD SIMULATIONS AB This study examines how solar wind plasma enters the magnetosphere under northward interplanetary magnetic field ( IMF) conditions, using the Open Geospace General Circulation Model ( OpenGGCM) for various solar wind, IMF, and geomagnetic dipole conditions. We trace flow paths of individual fluid elements from the solar wind and study the variation of the topology of the magnetic field line along those flow paths. We find that there is an entry window through which the solar wind plasma can enter the magnetosphere as a result of double high- latitude reconnection under northward IMF conditions. We investigate how the entry window depends on solar wind, IMF, and geomagnetic dipole parameters, and we estimate the solar wind plasma entry rate for various conditions. We find that the effective entry rate under northward IMF conditions is of the order of 10 26 to 10 27 particles per second. We also estimate the conditions for which solar wind plasma entry is most efficient. The newly created flux tubes with closed-field topology are subsequently convected to the nightside and consequently cause magnetosheath plasma to be captured and enter the magnetosphere. Some captured dayside plasma takes about 90 min to convect along the magnetopause to a near tail flank region of the central plasma sheet, thus forming a cold dense plasma sheet. Double high-latitude reconnection can also release the captured plasma. Thus a balance of inflow and outflow of the captured plasma is eventually established under prolonged northward IMF conditions. We find that high- latitude reconnection is common under northward IMF conditions in our simulations. It occurs for IMF with any clock angle within [ - 90 degrees, 90 degrees], measured in front of the bow shock, and for any geomagnetic dipole tilt angle within [-30 degrees, 30 degrees]. An IMF field line with a zero x component usually first reconnects with a geomagnetic field line at the northern high- latitude boundary when the geomagnetic dipole tilts positive toward the Sun, and vice versa for negative dipole tilt. Our simulations also show that ionosphere conductance affects the convection of the newly closed field lines. Consequently, ionosphere conductance can change the solar wind plasma effective entry rate and can cause asymmetric effective entry rate with respect to positive and negative IMF clock angles. C1 [Li, Wenhui; Raeder, Joachim] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. [Thomsen, Michelle F.; Lavraud, Benoit] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Li, WH (reprint author), Univ New Hampshire, Ctr Space Sci, Morse Hall, Durham, NH 03824 USA. EM wenhuil@cisunix.unh.edu; j.raeder@unh.edu; mthomsen@lanl.gov; lavraud@lanl.gov OI Li, Wenhui/0000-0002-0842-5084 NR 90 TC 32 Z9 36 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-9380 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD APR 3 PY 2008 VL 113 IS A4 AR A04204 DI 10.1029/2007JA012604 PG 22 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 284PP UT WOS:000254718600003 ER PT J AU Goodell, CM Gilbert, B Weigand, SJ Banfleld, JF AF Goodell, Carmen M. Gilbert, Benjamin Weigand, Steven J. Banfleld, Jillian F. TI Kinetics of water adsorption-driven structural transformation of ZnS nanoparticles SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID NANOCRYSTALS; DIFFRACTION AB Nanoparticles of certain materials can respond structurally to changes in their surface environments. We have previously shown that methanol, water adsorption, and aggregation-disaggregation can change the structure of 3 nm diameter zinc sulfide (ZnS). However, in prior observations of water-driven structure change, aggregation also may have taken place. Therefore, we investigated the structural consequences of water adsorption alone on anhydrous nanoparticles that were dried to minimize changes in aggregation. Using simultaneously collected small- and wide-angle X-ray scattering (SAXS and WAXS) data, we showed that water vapor adsorption alone drives a structural transformation in ZnS nanoparticles in the temperature range of 22-40 degrees C. The transition kinetics is strongly temperature dependent, with an activation energy of 55 10 kJ/mol, consistent with atom displacement rather than bond breaking. At 50 degrees C, aggregate restructuring occurred, increasing the transition kinetics beyond the rate expected for water adsorption alone. The observation of isosbestic points in the WAXS data suggests that the particles do not transform continuously between the initial and the final structural state but rather undergo an abrupt change from a less ordered to a more ordered state. C1 [Gilbert, Benjamin; Banfleld, Jillian F.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Weigand, Steven J.] Argonne Natl Lab, Adv Photon Source, DuPont Northwestern Dow Collaborat Access Team, Northwestern Univ,Synchrotron Res Ctr, Argonne, IL 60439 USA. RP Gilbert, B (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM bgilbert@lbl.gov; jbanfield@berkeley.edu RI Gilbert, Benjamin/E-3182-2010 NR 20 TC 13 Z9 13 U1 0 U2 17 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD APR 3 PY 2008 VL 112 IS 13 BP 4791 EP 4796 DI 10.1021/jp077189m PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 282AW UT WOS:000254541000002 ER PT J AU Grass, ME Yue, Y Habas, SE Rioux, RM Teall, CI Yang, P Somorjai, GA AF Grass, Michael E. Yue, Yao Habas, Susan E. Rioux, Robert M. Teall, Chelsea I. Yang, Peidong Somorjai, Gabor A. TI Silver ion mediated shape control of platinum nanoparticles: Removal of silver by selective etching leads to increased catalytic activity SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID MESOPOROUS SBA-15 SILICA; NITRIC-ACID SOLUTIONS; ETHYLENE HYDROGENATION; GOLD NANOCRYSTALS; PT-NANOPARTICLES; METALLIC SILVER; PHASE-DIAGRAMS; PARTICLE-SIZE; AG; CO AB A procedure has been developed for the selective etching of silver from platinum nanoparticles of well-defined shape, resulting in the formation of nearly elementally pure Pt cubes, cuboctahedra, or octahedra, with a largest vertex-to-vertex distance of similar to 9.5 nm from Ag-modified Pt nanoparticles. The characterization of mesoporous silica-supported Pt nanoparticles by XRD, TEM, and N-2 adsorption measurements demonstrated that the structure of the nanoparticles and the mesoporous support was conserved after etching in concentrated nitric acid. Both elemental analysis and ethylene hydrogenation indicated that etching of Ag is only effective when [HNO3] >= 7 M; below this concentration, the removal of Ag is limited to similar to 10%. The activity for ethylene hydrogenation increased by four orders of magnitude after etching Pt octahedra containing the highest fraction of silver. High-resolution transmission electron microscopy of the unsupported particles after etching demonstrated that etching does not alter the surface structure of the Pt nanoparticles. High HNO3 concentration led to decomposition of the capping agent, polyvinylpyrollidone (PVP). C1 [Somorjai, Gabor A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Somorjai, GA (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM somorjai@berkeley.edu NR 54 TC 64 Z9 64 U1 3 U2 50 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD APR 3 PY 2008 VL 112 IS 13 BP 4797 EP 4804 DI 10.1021/jp7097679 PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 282AW UT WOS:000254541000003 ER PT J AU Shin, Y Bae, IT Arey, BW Exarhos, GJ AF Shin, Yongsoon Bae, In-Tae Arey, Bruce W. Exarhos, Gregory J. TI Facile stabilization of gold-silver alloy nanoparticles on cellulose nanocrystal SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID METAL PARTICLES; SUSPENSIONS; CRYSTALLITES; SPECTROSCOPY; ABSORPTION AB Uniform Au-Ag alloy nanoparticles have been synthesized on cellulose nanocrystal (CNXL) by the co-reduction method of corresponding metal ions. CNXL that plays a dual role of a matrix and of a stabilizer has been used to obtain stable dispersions of alloy nanoparticles. The composition of alloy nanoparticles indicates a quantitative deposit of metal ions on CNXL surface followed by reduction. The sizes of alloy nanoparticles were controlled in the range of 3-7 nm by capping agent, sodium citrate, and their average diameter was increased with an increase of Ag content. Aqueous suspensions of Au-Ag alloy nanoparticles and their dried films are characterized by UV-vis spectroscopy, field emission-scanning electron microscope (FE-SEM), transmission electron microscope (TEM), and X-ray diffraction (XRD). C1 [Shin, Yongsoon; Bae, In-Tae; Arey, Bruce W.; Exarhos, Gregory J.] Pacific NW Natl Lab, Richland, WA 99354 USA. RP Shin, Y (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999,MSIN K2-44, Richland, WA 99354 USA. EM yongsoon.shin@pnl.gov NR 19 TC 95 Z9 97 U1 5 U2 54 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD APR 3 PY 2008 VL 112 IS 13 BP 4844 EP 4848 DI 10.1021/jp710767w PG 5 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 282AW UT WOS:000254541000009 ER PT J AU Friddle, RW Podsiadlo, P Artyukhin, AB Noy, A AF Friddle, Raymond W. Podsiadlo, Paul Artyukhin, Alexander B. Noy, Aleksandr TI Near-equilibrium chemical force microscopy SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID ADHESION BONDS; SINGLE PROTEIN; SPECTROSCOPY; ENERGY; KINETICS; MODELS; CELLS; TIPS AB Molecular force spectroscopy experiments probe the stochastic kinetics of individual intermolecular bond rupture under external loading. While there are numerous examples describing rupture kinetics under fast-loading, far from equilibrium conditions, bond rupture at slow loading rates near equilibrium conditions is seldom explored. We use an analytical and numerical approach to show that rupture forces in this qualitatively different regime reach an equilibrium plateau value that is a function of the probe stiffness and the free energy difference between the bound and dissociated state of the bond. Chemical force microscopy measurements of the interaction between a small number of well-defined COOH functional groups confirm these predictions and show the expected scaling of the force plateau values with the square root of the probe stiffness. Finally, we discuss the implications of these results for the interpretation of force spectroscopy experiments. C1 [Friddle, Raymond W.; Podsiadlo, Paul; Artyukhin, Alexander B.; Noy, Aleksandr] Lawrence Livermore Natl Lab, Chem Mat Energy & Life Sci Directorate, Livermore, CA 94550 USA. [Podsiadlo, Paul] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA. RP Noy, A (reprint author), Lawrence Livermore Natl Lab, Chem Mat Energy & Life Sci Directorate, POB 5508, Livermore, CA 94550 USA. EM noy1@llnl.gov NR 28 TC 32 Z9 32 U1 2 U2 15 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD APR 3 PY 2008 VL 112 IS 13 BP 4986 EP 4990 DI 10.1021/jp7095967 PG 5 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 282AW UT WOS:000254541000030 ER PT J AU Tsige, M Grest, GS AF Tsige, Mesfin Grest, Gary S. TI Surface tension and surface orientation of perfluorinated alkanes SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID LIQUID-VAPOR INTERFACE; MOLECULAR-DYNAMICS SIMULATION; FLUORINATED AMPHIPHILES; PHASE-EQUILIBRIA; BRANCHED ALKANES; FORCE-FIELDS; AB-INITIO; PERFLUOROALKANES; MONOLAYERS; POTENTIALS AB Molecular dynamics simulations using two all-atom force fields, the OPLS force field of Jorgensen et al. and the recently developed force field of Borodin et al. (exp-6), have been used to study the equilibrium liquid-vapor interface properties of perfluorinated alkanes. Both force fields predict similar liquid densities and are in excellent agreement with existing experimental data for short chains. The OPLS force field offers better agreement with experimental data for surface tension at lower molecular weights than the exp-6 force field, which overpredicts it by as much as 9%. However, for longer chains the OPLS force field predicts higher surface tension than the exp-6 force field. Also, the OPLS substantially overpredicts the melting temperature confirming a recent suggestion that this force field may not be transferable to longer perfluorinated alkane chains. The orientation of the chains at the surface is found to be strongly dependent on both chain length and temperature. On average, the chain segments tend to orient perpendicular to the surface with the -CF3 end segments at the surface. C1 [Tsige, Mesfin] So Illinois Univ, Dept Phys, Carbondale, IL 62901 USA. [Grest, Gary S.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Tsige, M (reprint author), So Illinois Univ, Dept Phys, Mail Code 4401, Carbondale, IL 62901 USA. EM mtsige@physics.siu.edu NR 42 TC 21 Z9 21 U1 0 U2 12 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD APR 3 PY 2008 VL 112 IS 13 BP 5029 EP 5035 DI 10.1021/jp710678w PG 7 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 282AW UT WOS:000254541000036 ER PT J AU Cole, B Marsen, B Miller, E Yan, YF To, B Jones, K Al-Jassim, M AF Cole, Brian Marsen, Bjorn Miller, Eric Yan, Yanfa To, Bobby Jones, Kim Al-Jassim, Mowafak TI Evaluation of nitrogen doping of tungsten oxide for photoelectrochemical water splitting SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID VISIBLE-LIGHT; CRYSTALLOGRAPHIC SHEAR; TRIOXIDE FILMS; THIN-FILMS; PHOTOELECTROLYSIS; SEMICONDUCTORS; TEMPERATURE; ELECTRODE; ENERGY; WO3-X AB Thin films of tungsten oxide were fabricated by reactive RF magnetron sputtering for applications related to the direct solar splitting of water. To investigate band gap reduction by nitrogen doping, films were deposited with nitrogen introduced into the sputtering ambient at partial pressures in the range of 0-6 mTorr N-2. For dilute doping (pN(2) < 2 mTorr), the films exhibit a small increase in band gap, and show a degradation of the carrier collection efficiency. Structurally, X-ray diffraction indicates a decrease in crystallinity with nitrogen incorporation. For higher levels of nitrogen doping (pN(2) > 3 mTorr), the diffraction pattern shows the evolution of a new phase that shows an increase in scattering power relative to the pure WO3. For these samples, a reduction of the optical band gap to < 2.0 eV is measured. However, the photocurrent density under AM 1.5G illumination showed a degradation from 2.68 mA/cm(2) for pure WO3 to 0.67 mA/cm(2) for the nitrogen doped sample (6 mTorr). The poor photocurrent for the nitrogen doped sample is attributed a degradation of the electron transport properties as a result of a highly defective lattice. C1 [Cole, Brian; Marsen, Bjorn; Miller, Eric] Univ Hawaii Manoa, Hawaii Nat Inst, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA. [Yan, Yanfa; To, Bobby; Jones, Kim; Al-Jassim, Mowafak] Natl Renewable Energy Lab, Golden, CO USA. RP Cole, B (reprint author), Univ Hawaii Manoa, Hawaii Nat Inst, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA. EM bcole@hawaii.edu RI Marsen, Bjorn/D-4764-2009 OI Marsen, Bjorn/0000-0002-8304-0061 NR 33 TC 103 Z9 103 U1 9 U2 88 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1932-7447 J9 J PHYS CHEM C JI J. Phys. Chem. C PD APR 3 PY 2008 VL 112 IS 13 BP 5213 EP 5220 DI 10.1021/jp077624c PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 282AW UT WOS:000254541000060 ER PT J AU Chin, L Gray, JW AF Chin, Lynda Gray, Joe W. TI Translating insights from the cancer genome into clinical practice SO NATURE LA English DT Review ID CELL LUNG-CANCER; BREAST-CANCER; SUSCEPTIBILITY GENE; TYROSINE KINASE; NEU ONCOGENE; BCR-ABL; TARGETED THERAPIES; PROSTATE-CANCER; OVARIAN-CANCER; RECEPTOR GENE AB Cancer cells have diverse biological capabilities that are conferred by numerous genetic aberrations and epigenetic modifications. Today's powerful technologies are enabling these changes to the genome to be catalogued in detail. Tomorrow is likely to bring a complete atlas of the reversible and irreversible alterations that occur in individual cancers. The challenge now is to work out which molecular abnormalities contribute to cancer and which are simply 'noise' at the genomic and epigenomic levels. Distinguishing between these will aid in understanding how the aberrations in a cancer cell collaborate to drive pathophysiology. Past successes in converting information from genomic discoveries into clinical tools provide valuable lessons to guide the translation of emerging insights from the genome into clinical end points that can affect the practice of cancer medicine. C1 [Chin, Lynda] Dana Farber Canc Inst, Boston, MA 02115 USA. [Chin, Lynda] Harvard Univ, Sch Med, Boston, MA 02115 USA. [Gray, Joe W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Chin, L (reprint author), Dana Farber Canc Inst, 44 Binney St, Boston, MA 02115 USA. EM lynda_chin@dfci.harvard.edu FU NCI NIH HHS [U54 CA112970, U54 CA112970-05] NR 93 TC 176 Z9 182 U1 0 U2 12 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD APR 3 PY 2008 VL 452 IS 7187 BP 553 EP 563 DI 10.1038/nature06914 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 282KR UT WOS:000254567200033 PM 18385729 ER PT J AU Vinokur, VM Baturina, TI Fistul, MV Mironov, AY Baklanov, MR Strunk, C AF Vinokur, Valerii M. Baturina, Tatyana I. Fistul, Mikhail V. Mironov, Aleksey Yu. Baklanov, Mikhail R. Strunk, Christoph TI Superinsulator and quantum synchronization SO NATURE LA English DT Article ID TUNNEL-JUNCTIONS; ARRAYS; CHARGE AB Synchronized oscillators are ubiquitous in nature(1), and synchronization plays a key part in various classical and quantum phenomena. Several experiments(2-4) have shown that in thin superconducting films, disorder enforces the droplet- like electronic texture - superconducting islands immersed into a normal matrix - and that tuning disorder drives the system from superconducting to insulating behaviour. In the vicinity of the transition, a distinct state(4) forms: a Cooper- pair insulator, with thermally activated conductivity. It results from synchronization of the phase of the superconducting order parameter at the islands across the whole system(5). Here we show that at a certain finite temperature, a Cooper- pair insulator undergoes a transition to a superinsulating state with infinite resistance. We present experimental evidence of this transition in titanium nitride films and show that the superinsulating state is dual to the superconducting state: it is destroyed by a sufficiently strong critical magnetic field, and breaks down at some critical voltage that is analogous to the critical current in superconductors. C1 [Vinokur, Valerii M.; Baturina, Tatyana I.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Baturina, Tatyana I.; Mironov, Aleksey Yu.] Russian Acad Sci, Inst Semicond Phys, Novosibirsk 630090, Russia. [Baturina, Tatyana I.; Mironov, Aleksey Yu.; Strunk, Christoph] Univ Regensburg, Inst Expt Angew Phys, D-93040 Regensburg, Germany. [Fistul, Mikhail V.] Ruhr Univ Bochum, D-44801 Bochum, Germany. [Baklanov, Mikhail R.] IMEC, B-3001 Louvain, Belgium. RP Vinokur, VM (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM vinokour@anl.gov NR 21 TC 108 Z9 109 U1 3 U2 37 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD APR 3 PY 2008 VL 452 IS 7187 BP 613 EP U5 DI 10.1038/nature06837 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 282KR UT WOS:000254567200041 PM 18385735 ER PT J AU Dinsdale, EA Edwards, RA Hall, D Angly, F Breitbart, M Brulc, JM Furlan, M Desnues, C Haynes, M Li, LL McDaniel, L Moran, MA Nelson, KE Nilsson, C Olson, R Paul, J Brito, BR Ruan, YJ Swan, BK Stevens, R Valentine, DL Thurber, RV Wegley, L White, BA Rohwer, F AF Dinsdale, Elizabeth A. Edwards, Robert A. Hall, Dana Angly, Florent Breitbart, Mya Brulc, Jennifer M. Furlan, Mike Desnues, Christelle Haynes, Matthew Li, Linlin McDaniel, Lauren Moran, Mary Ann Nelson, Karen E. Nilsson, Christina Olson, Robert Paul, John Brito, Beltran Rodriguez Ruan, Yijun Swan, Brandon K. Stevens, Rick Valentine, David L. Thurber, Rebecca Vega Wegley, Linda White, Bryan A. Rohwer, Forest TI Functional metagenomic profiling of nine biomes SO NATURE LA English DT Article ID MICROBIAL ECOLOGY; GENOME; DIVERSITY; EVOLUTION; COMMUNITY; DATABASE; VIRUSES; BACTERIOPHAGES; BACTERIA; ARCHAEA AB Microbial activities shape the biogeochemistry of the planet(1,2) and macroorganism health(3). Determining the metabolic processes performed by microbes is important both for understanding and for manipulating ecosystems ( for example, disruption of key processes that lead to disease, conservation of environmental services, and so on). Describing microbial function is hampered by the inability to culture most microbes and by high levels of genomic plasticity. Metagenomic approaches analyse microbial communities to determine the metabolic processes that are important for growth and survival in any given environment. Here we conduct a metagenomic comparison of almost 15 million sequences from 45 distinct microbiomes and, for the first time, 42 distinct viromes and show that there are strongly discriminatory metabolic profiles across environments. Most of the functional diversity was maintained in all of the communities, but the relative occurrence of metabolisms varied, and the differences between metagenomes predicted the biogeochemical conditions of each environment. The magnitude of the microbial metabolic capabilities encoded by the viromes was extensive, suggesting that they serve as a repository for storing and sharing genes among their microbial hosts and influence global evolutionary and metabolic processes. C1 [Dinsdale, Elizabeth A.; Edwards, Robert A.; Hall, Dana; Angly, Florent; Furlan, Mike; Desnues, Christelle; Haynes, Matthew; Li, Linlin; Brito, Beltran Rodriguez; Thurber, Rebecca Vega; Wegley, Linda; Rohwer, Forest] San Diego State Univ, Dept Biol, San Diego, CA 92182 USA. [Edwards, Robert A.; Rohwer, Forest] San Diego State Univ, Ctr Microbial Sci, San Diego, CA 92182 USA. [Edwards, Robert A.] San Diego State Univ, Dept Comp Sci, San Diego, CA 92182 USA. [Angly, Florent; Brito, Beltran Rodriguez] San Diego State Univ, Computat Sci Res Ctr, San Diego, CA 92182 USA. [Dinsdale, Elizabeth A.] Flinders Univ S Australia, Sch Biol Sci, Bedford Pk, SA 5042, Australia. [Edwards, Robert A.; Olson, Robert; Stevens, Rick] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA. [Breitbart, Mya; McDaniel, Lauren; Paul, John] Univ S Florida, Coll Marine Sci, St Petersburg, FL 33701 USA. [Brulc, Jennifer M.; White, Bryan A.] Univ Illinois, Dept Anim Sci, Urbana, IL 61801 USA. [White, Bryan A.] Univ Illinois, Inst Genom Biol, Urbana, IL 61801 USA. [Moran, Mary Ann] Univ Georgia, Dept Marine Sci, Athens, GA 30602 USA. [Nelson, Karen E.] J Craig Venter Inst, Rockville, MD 20850 USA. [Nilsson, Christina; Ruan, Yijun] Genome Inst Singapore, Singapore 138672, Singapore. [Swan, Brandon K.; Valentine, David L.] Univ Calif Santa Barbara, Dept Earth Sci, Santa Barbara, CA 93106 USA. RP Dinsdale, EA (reprint author), San Diego State Univ, Dept Biol, San Diego, CA 92182 USA. EM elizabeth_dinsdale@hotmail.com RI Breitbart, Mya/B-1366-2009; Li, Linlin/E-3335-2010; Angly, Florent/A-7717-2011; Moran, Mary Ann/B-6939-2012; Valentine, David/E-5594-2012; Desnues, Christelle/B-1383-2010; OI Breitbart, Mya/0000-0003-3210-2899; Angly, Florent/0000-0002-8999-0738; Desnues, Christelle/0000-0002-2178-0355; Valentine, David/0000-0001-5914-9107; Moran, Mary Ann/0000-0002-0702-8167 NR 36 TC 466 Z9 477 U1 16 U2 201 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD APR 3 PY 2008 VL 452 IS 7187 BP 629 EP U8 DI 10.1038/nature06810 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 282KR UT WOS:000254567200045 PM 18337718 ER PT J AU Marchetti, F Wyrobek, AJ AF Marchetti, Francesco Wyrobek, Andrew J. TI DNA repair decline during mouse spermiogenesis results in the accumulation of heritable DNA damage SO DNA REPAIR LA English DT Article DE diepoxybutane; zygote; chromosomal aberrations ID ENVIRONMENTAL TOBACCO-SMOKE; BONE-MARROW-CELLS; MALE GERM-CELLS; CHROMOSOMAL-ABERRATIONS; HUMAN SPERM; STRAND BREAKS; MALE-MICE; DEVELOPMENTAL TOXICITY; BUTADIENE DIEPOXIDE; SPECIES-DIFFERENCES AB The postmeiotic phase of mouse spermatogenesis (spermiogenesis) is very sensitive to the genomic effects of environmental mutagens because as male germ cells form mature sperm they progressively lose the ability to repair DNA damage. We hypothesized that repeated exposures to mutagens during this repair-deficient phase result in the accumulation of heritable genomic damage in mouse sperm that leads to chromosomal aberrations in zygotes after fertilization. We used a combination of single or fractionated exposures to diepoxybutane (DEB), a component of tobacco smoke, to investigate how differential DNA repair efficiencies during the 3 weeks of spermiogenesis affected the accumulation of DEB-induced heritable damage in early spermatids (21-15 days before fertilization (dbf)), late spermatids (14-8 dbf) and sperm (7-1 dbf). Analysis of chromosomal aberrations in zygotic metaphases using PAINT/DAPI showed that late spermatids and sperm are unable to repair DEB-induced DNA damage as demonstrated by significant increases (P<0.001) in the frequencies of zygotes with chromosomal aberrations. Comparisons between single and fractionated exposures suggested that the DNA repair-deficient window during late spermiogenesis may be less than 2 weeks in the mouse and that during this repair-deficient window there is accumulation of DNA damage in sperm. Finally, the dose-response study in sperm indicated a linear response for both single and repeated exposures. These findings show that the differential DNA repair capacity of postmeiotic male germ cells has a major impact on the risk of paternally transmitted heritable damage and suggest that chronic exposures that may occur in the weeks prior to fertilization because of occupational or lifestyle factors (i.e., smoking) can lead to an accumulation of genetic damage in sperm and result in heritable chromosomal aberrations of paternal origin. (C) 2008 Elsevier B.V. All rights reserved. C1 [Marchetti, Francesco; Wyrobek, Andrew J.] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. [Marchetti, Francesco; Wyrobek, Andrew J.] Lawrence Livermore Natl Lab, Biol & Biotechnol Res Program, Livermore, CA 94550 USA. RP Marchetti, F (reprint author), Lawrence Berkeley Natl Lab, Div Life Sci, MS74R0157,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM fmarchetti@lbl.gov OI Marchetti, Francesco/0000-0002-9435-4867 NR 73 TC 30 Z9 32 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1568-7864 J9 DNA REPAIR JI DNA Repair PD APR 2 PY 2008 VL 7 IS 4 BP 572 EP 581 DI 10.1016/j.dnarep.2007.12.011 PG 10 WC Genetics & Heredity; Toxicology SC Genetics & Heredity; Toxicology GA 293IA UT WOS:000255327800003 PM 18282746 ER PT J AU Kollet, SJ Maxwell, RM AF Kollet, Stefan J. Maxwell, Reed M. TI Demonstrating fractal scaling of baseflow residence time distributions using a fully-coupled groundwater and land surface model SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID HETEROGENEOUS POROUS-MEDIA; ARTIFICIAL RECHARGE; SPACED DATA; SIMULATION; TRANSPORT; STREAM; MIGRATION; AQUIFER AB The influence of the vadose zone, land surface processes, and macrodispersion on the shape and scaling behavior of residence time distributions of baseflow is studied using a fully coupled watershed model in conjunction with a Lagrangian, particle-tracking approach. Numerical experiments are used to simulate groundwater flow paths from recharge locations along the hillslope to the streambed. These experiments are designed to isolate the influences of topography, vadose zone/land surface processes, and macrodispersion on subsurface transport of tagged parcels of water. The results of these simulations agree with previous observations that such distributions exhibit a power law form and fractal behavior, which can be identified from plots of the residence time distribution and the power spectra. It is shown that vadose zone/land surface processes significantly affect both the residence time distributions and their spectra. C1 [Kollet, Stefan J.; Maxwell, Reed M.] Lawrence Livermore Natl Lab, Atmospher Energy & Environm Sci Div, Livermore, CA 94551 USA. RP Kollet, SJ (reprint author), Univ Bonn, Inst Meteorol, Auf Dem Huegel 20, D-53121 Bonn, Germany. EM stefan.kollet@uni-bonn.de RI Maxwell, Reed/D-7980-2013 OI Maxwell, Reed/0000-0002-1364-4441 NR 27 TC 42 Z9 42 U1 3 U2 19 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD APR 2 PY 2008 VL 35 IS 7 AR L07402 DI 10.1029/2008GL033215 PG 6 WC Geosciences, Multidisciplinary SC Geology GA 284OU UT WOS:000254716500001 ER PT J AU Baldwin, TE Ramaprasad, A Samsa, ME AF Baldwin, Thomas E. Ramaprasad, Arkalgud Samsa, Michael E. TI Understanding public confidence in government to prevent terrorist attacks SO JOURNAL OF HOMELAND SECURITY AND EMERGENCY MANAGEMENT LA English DT Article DE public confidence; government authority; law enforcement; risk; terrorist attacks ID FEDERALISM; OPINION AB A primary goal of terrorism is to instill a sense of fear and vulnerability in a population and to erode its confidence in government and law enforcement agencies to protect citizens against future attacks. In recognition of its importance, the Department of Homeland Security includes public confidence as one of the principal metrics used to assess the consequences of terrorist attacks. Hence, a detailed understanding of the variations in public confidence among individuals, terrorist event types, and as a function of time is critical to developing this metric. In this exploratory study, a questionnaire was designed, tested, and administered to small groups of individuals to measure public confidence in the ability of federal, state, and local governments and their public safety agencies to prevent acts of terrorism. Data was collected from three groups before and after they watched mock television news broadcasts portraying a smallpox attack, a series of suicide bomber attacks, a refinery explosion attack, and cyber intrusions on financial institutions, resulting in identity theft. Our findings are: (a) although the aggregate confidence level is low, there are optimists and pessimists; (b) the subjects are discriminating in interpreting the nature of a terrorist attack, the time horizon, and its impact; (c) confidence recovery after a terrorist event has an incubation period; and (d) the patterns of recovery of confidence of the optimists and the pessimists are different. These findings can affect the strategy and policies to manage public confidence after a terrorist event. C1 [Baldwin, Thomas E.; Samsa, Michael E.] Argonne Natl Lab, Argonne, IL 60439 USA. [Ramaprasad, Arkalgud] Univ Illinois, Chicago, IL 60680 USA. RP Baldwin, TE (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA. EM baldwint@anl.gov; prasad@uic.edu; msamsa@anl.gov NR 26 TC 2 Z9 2 U1 1 U2 7 PU BERKELEY ELECTRONIC PRESS PI BERKELEY PA 2809 TELEGRAPH AVENUE, STE 202, BERKELEY, CA 94705 USA SN 1547-7355 J9 J HOMEL SECUR EMERG JI J. Homel. Secur. Emerg. Manag. PD APR 2 PY 2008 VL 5 IS 1 AR 4 PG 19 WC Public Administration SC Public Administration GA 282KD UT WOS:000254565600002 ER PT J AU Baek, SH Choi, KY Reyes, AP Kuhns, PL Curro, NJ Ramanchandran, V Dalal, NS Zhou, HD Wiebe, CR AF Baek, S-H Choi, K-Y Reyes, A. P. Kuhns, P. L. Curro, N. J. Ramanchandran, V. Dalal, N. S. Zhou, H. D. Wiebe, C. R. TI Ac susceptibility and (51)V NMR study of MnV(2)O(4) SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Article ID TRANSITION; SPINELS AB We report (51)V zero-field NMR of the manganese vanadate spinel compound, MnV(2)O(4), together with both ac and dc magnetization measurements. The field and temperature dependences of ac susceptibilities show a re-entrant-spin-glass-like behavior below the ferrimagnetic (FEM) ordering temperature. The zero-field NMR spectrum consists of multiple lines ranging from 240 to 320 MHz. Its temperature and field dependences are discussed in terms of the persistence of a small fraction of the cubic phase within the FEM ordered ground state. Due to strong spin-orbit couplings the disordered phase induces an anomalous structural and electronic state in an external field. This suggests a close correlation between magnetism and structure. C1 [Baek, S-H; Choi, K-Y; Reyes, A. P.; Kuhns, P. L.; Ramanchandran, V.; Dalal, N. S.; Zhou, H. D.; Wiebe, C. R.] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. [Baek, S-H; Curro, N. J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Baek, SH (reprint author), Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. RI Baek, Seung-Ho/F-4733-2011; Curro, Nicholas/D-3413-2009; Zhou, Haidong/O-4373-2016 OI Baek, Seung-Ho/0000-0002-0059-8255; Curro, Nicholas/0000-0001-7829-0237; NR 22 TC 24 Z9 24 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD APR 2 PY 2008 VL 20 IS 13 AR 135218 DI 10.1088/0953-8984/20/13/135218 PG 6 WC Physics, Condensed Matter SC Physics GA 276WR UT WOS:000254174900024 ER PT J AU Zhao, M Helms, B Slonkina, E Friedle, S Lee, D DuBois, J Hedman, B Hodgson, KO Frechet, JMJ Lippard, SJ AF Zhao, Min Helms, Brett Slonkina, Elena Friedle, Simone Lee, Dongwhan DuBois, Jennifer Hedman, Britt Hodgson, Keith O. Frechet, Jean M. J. Lippard, Stephen J. TI Iron complexes of dendrimer-appended carboxylates for activating dioxygen and oxidizing hydrocarbons SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID SOLUBLE METHANE MONOOXYGENASE; REDUCTASE INTERMEDIATE X; NONHEME DIIRON ENZYMES; RIBONUCLEOTIDE REDUCTASE; CIS-DIHYDROXYLATION; SITE-ISOLATION; DIAMOND CORE; MODELS; CENTERS; PROTEINS AB The active sites of metalloenzymes are often deeply buried inside a hydrophobic protein sheath, which protects them from undesirable hydrolysis and polymerization reactions, allowing them to achieve their normal functions. In order to mimic the hydrophobic environment of the active sites in bacterial monooxygenases, diiron(II) compounds of the general formula [Fe(2)([G-3]COO)(4)(4-RPy)(2)] were prepared, where [G-3]COO(-) is a third-generation dendrimer-appended terphenyl carboxylate ligand and 4-RPy is a pyridine derivative. The dendrimer environment provides excellent protection for the diiron center, reducing its reactivity toward dioxygen by about 300-fold compared with analogous complexes of terphenyl carboxylate ([G-1]COO(-)) ligands. An Fe(II)Fe(III) intermediate was characterized by electronic, electron paramagnetic resonance, Mossbauer, and X-ray absorption spectroscopic analyses following the oxygenation of [Fe(2)-([G-3]COO)(4)(4-PPY)(2)], where 4-PPy is 4-pyrrolidinopyridine. The results are consistent with the formation of a superoxo species. This diiron compound, in the presence of dioxygen, can oxidize external substrates. C1 [Slonkina, Elena; DuBois, Jennifer; Hedman, Britt; Hodgson, Keith O.] Stanford Univ, Dept Chem, Stanford, CA 94305 USA. [Slonkina, Elena; DuBois, Jennifer; Hedman, Britt; Hodgson, Keith O.] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA. [Zhao, Min; Friedle, Simone; Lee, Dongwhan; Lippard, Stephen J.] MIT, Dept Chem, Cambridge, MA 02139 USA. [Helms, Brett; Frechet, Jean M. J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Helms, Brett; Frechet, Jean M. J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Hedman, B (reprint author), Stanford Univ, Dept Chem, Stanford, CA 94305 USA. EM frechet@berkeley.edu; lippard@mit.edu RI Bobyr, Elena/C-4269-2008; OI Frechet, Jean /0000-0001-6419-0163; Helms, Brett/0000-0003-3925-4174 FU NCRR NIH HHS [5 P41 RR001209, P41 RR001209]; NIGMS NIH HHS [GM32134, R01 GM032134, R01 GM032134-26S1] NR 61 TC 40 Z9 40 U1 0 U2 16 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD APR 2 PY 2008 VL 130 IS 13 BP 4352 EP 4363 DI 10.1021/ja076817a PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA 282DY UT WOS:000254549000036 PM 18331028 ER PT J AU Tringe, SG Zhang, T Liu, XG Yu, YT Lee, WH Yap, J Yao, F Suan, ST Ing, SK Haynes, M Rohwer, F Wei, CL Tan, P Bristow, J Rubin, EM Ruan, YJ AF Tringe, Susannah G. Zhang, Tao Liu, Xuguo Yu, Yiting Lee, Wah Heng Yap, Jennifer Yao, Fei Suan, Sim Tiow Ing, Seah Keng Haynes, Matthew Rohwer, Forest Wei, Chia Lin Tan, Patrick Bristow, James Rubin, Edward M. Ruan, Yijun TI The Airborne Metagenome in an Indoor Urban Environment SO PLOS ONE LA English DT Article AB The indoor atmosphere is an ecological unit that impacts on public health. To investigate the composition of organisms in this space, we applied culture-independent approaches to microbes harvested from the air of two densely populated urban buildings, from which we analyzed 80 megabases genomic DNA sequence and 6000 16S rDNA clones. The air microbiota is primarily bacteria, including potential opportunistic pathogens commonly isolated from human-inhabited environments such as hospitals, but none of the data contain matches to virulent pathogens or bioterror agents. Comparison of air samples with each other and nearby environments suggested that the indoor air microbes are not random transients from surrounding outdoor environments, but rather originate from indoor niches. Sequence annotation by gene function revealed specific adaptive capabilities enriched in the air environment, including genes potentially involved in resistance to desiccation and oxidative damage. This baseline index of air microbiota will be valuable for improving designs of surveillance for natural or man-made release of virulent pathogens. C1 [Tringe, Susannah G.; Bristow, James; Rubin, Edward M.] Joint Genome Inst, Dept Energy, Walnut Creek, CA 94598 USA. [Tringe, Susannah G.; Bristow, James; Rubin, Edward M.] Lawrence Berkeley Natl Lab, Genomics Div, Berkeley, CA USA. [Zhang, Tao; Liu, Xuguo; Yu, Yiting; Lee, Wah Heng; Yao, Fei; Wei, Chia Lin; Tan, Patrick; Ruan, Yijun] Genome Inst Singapore, Singapore, Singapore. [Yap, Jennifer] Natl Environm Agcy, Environm Hlth Inst, Singapore, Singapore. [Suan, Sim Tiow; Ing, Seah Keng] Natl Univ Singapore, Dept Microbiol, Singapore, Singapore. [Haynes, Matthew; Rohwer, Forest] San Diego State Univ, Ctr Microbial Sci, Biol Dept, San Diego, CA USA. RP Tringe, SG (reprint author), Joint Genome Inst, Dept Energy, Walnut Creek, CA 94598 USA. EM emrubin@lbl.gov; ruanyj@gis.a-star.edu.sg RI Yu, Yiting/C-8443-2009; OI Tringe, Susannah/0000-0001-6479-8427 FU Agency for Science, Technology and Research (A*STAR), Singapore; US Department of Energy's Office of Science, Biological and Environmental Research Program; University of California, Lawrence Livermore National Laboratory [W-7405-Eng-48]; Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Los Alamos National Laboratory [DE-AC02-06NA25396] FX This work was supported by the Agency for Science, Technology and Research (A*STAR), Singapore, and under the auspices of the US Department of Energy's Office of Science, Biological and Environmental Research Program, and by the University of California, Lawrence Livermore National Laboratory under Contract No. W-7405-Eng-48, Lawrence Berkeley National Laboratory under contract No. DE-AC02-05CH11231, and Los Alamos National Laboratory under contract No. DE-AC02-06NA25396. NR 35 TC 85 Z9 90 U1 3 U2 47 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD APR 2 PY 2008 VL 3 IS 4 AR e1862 DI 10.1371/journal.pone.0001862 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 370XC UT WOS:000260795400003 PM 18382653 ER PT J AU Martinez-Moyano, IJ Rich, E Conrad, S Andersen, DF Stewart, TR AF Martinez-Moyano, Ignacio J. Rich, Eliot Conrad, Stephen Andersen, David F. Stewart, Thomas R. TI A behavioral theory of insider-threat risks: A system dynamics approach SO ACM TRANSACTIONS ON MODELING AND COMPUTER SIMULATION LA English DT Article DE insider threat; risk; system dynamics modeling; behavioral theory; signal detection theory; judgment and decision making; policy analysis; security modeling ID SCREENING MAMMOGRAPHY; SERVICE INDUSTRY/; US AB The authors describe a behavioral theory of the dynamics of insider-threat risks. Drawing on data related to information technology security violations and on a case study created to explain the dynamics observed in that data, the authors constructed a system dynamics model of a theory of the development of insider-threat risks and conducted numerical simulations to explore the parameter and response spaces of the model. By examining several scenarios in which attention to events, increased judging capabilities, better information, and training activities are simulated, the authors theorize about why information technology security effectiveness changes over time. The simulation results argue against the common presumption that increased security comes at the cost of reduced production. C1 [Martinez-Moyano, Ignacio J.] Argonne Natl Lab, Argonne, IL 60439 USA. [Stewart, Thomas R.] SUNY Albany, Ctr Policy Res, Albany, NY 12222 USA. [Conrad, Stephen] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Martinez-Moyano, IJ (reprint author), Argonne Natl Lab, 9700 S Cass Ave,Bldg 900, Argonne, IL 60439 USA. EM imartinez@anl.gov; e.rich@albany.edu; shconra@sandia.gov; david.andersen@albany.edu; t.stewart@albany.edu NR 28 TC 14 Z9 14 U1 0 U2 4 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA SN 1049-3301 J9 ACM T MODEL COMPUT S JI ACM Trans. Model. Comput. Simul. PD APR PY 2008 VL 18 IS 2 AR 7 DI 10.1145/1346325.1346328 PG 27 WC Computer Science, Interdisciplinary Applications; Mathematics, Applied SC Computer Science; Mathematics GA 296AE UT WOS:000255515100003 ER PT J AU Demchenko, DO Robinson, RD Sadtler, B Erdonmez, CK Alivisatos, AP Wang, LW AF Demchenko, Denis O. Robinson, Richard D. Sadtler, Bryce Erdonmez, Can K. Alivisatos, A. Paul Wang, Lin-Wang TI Formation mechanism and properties of CdS-Ag2S nanorod superlattices SO ACS NANO LA English DT Article DE nanorod superlattices; CdS-Ag2S; strain; ordering; cation exchange ID CATION-EXCHANGE; QUANTUM DOTS; ELECTRONIC-STRUCTURE; PATTERN-FORMATION; GROWTH; NANOWIRES; CDS; HETEROSTRUCTURES; NANOPARTICLES; NANOCRYSTALS AB The mechanism of formation of recently fabricated CdS-Ag2S nanorod superlattices is considered and their elastic properties are predicted theoretically based on experimental structural data. We consider different possible mechanisms for the spontaneous ordering observed in these 1D nanostructures, such as diffusion-limited growth and ordering due to epitaxial strain. A simplified model suggests that diffusion-limited growth partially contributes to the observed ordering, but cannot account for the full extent of the ordering alone. The elastic properties of bulk Ag2S are predicted using a first principles method and are fed into a classical valence force field (VFF) model of the nanostructure. The VFF results show significant repulsion between Ag2S segments, strongly suggesting that the interplay between the chemical interface energy and strain due to the lattice mismatch between the two materials drives the spontaneous pattern formation. C1 [Demchenko, Denis O.; Wang, Lin-Wang] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. [Robinson, Richard D.; Sadtler, Bryce; Alivisatos, A. Paul] Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA. [Sadtler, Bryce; Erdonmez, Can K.; Alivisatos, A. Paul] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RP Demchenko, DO (reprint author), Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. EM dodemchenko@lbl.gov RI Alivisatos , Paul /N-8863-2015 OI Alivisatos , Paul /0000-0001-6895-9048 NR 39 TC 52 Z9 52 U1 9 U2 84 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 J9 ACS NANO JI ACS Nano PD APR PY 2008 VL 2 IS 4 BP 627 EP 636 DI 10.1021/nn700381y PG 10 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 291SB UT WOS:000255216000006 PM 19206592 ER PT J AU Landmark, KJ DiMaggio, S Ward, J Kelly, CV Vogt, S Hong, S Kotlyar, A Myc, A Thomas, TP Penner-Hahn, JE Baker, JR Holl, MMB Orr, BG AF Landmark, Kevin J. DiMaggio, Stassi Ward, Jesse Kelly, Christopher V. Vogt, Stefan Hong, Seungpyo Kotlyar, Alina Myc, Andrzej Thomas, Thommey P. Penner-Hahn, James E. Baker, James R., Jr. Holl, Mark M. Banaszak Orr, Bradford G. TI Synthesis, characterization, and in vitro testing of superparamagnetic iron oxide nanoparticles targeted using folic acid-conjugated dendrimers SO ACS NANO LA English DT Article DE dendrimers; magnetic nanoparticles; superparamagnetism; phase transfer; targeted MRI contrast agents; X-ray fluorescence microscopy; cancer ID MAGNETIC-RESONANCE DETECTION; MR CONTRAST AGENTS; FOLATE RECEPTOR; DRUG-DELIVERY; CANCER-CELLS; POLY(AMIDOAMINE) DENDRIMERS; INTRACELLULAR UPTAKE; TUMOR-CELLS; SOLID TUMORS; VIVO AB Organic-coated superparamagnetic iron oxide nanciparticles (OC-SPIONs) were synthesized and characterized by transmission electron microscopy and X-ray photoelectron spectroscopy. OC-SPIONs were transferred from organic media into water using poly(amidoamine) dendrimers modified with 6-TAMRA fluorescent dye and folic acid molecules. The saturation magnetization of the resulting dendrimer-coated SPIONs (DC-SPIONs) was determined, using a superconducting quantum interference device, to be 60 emu/g Fe versus 90 emu/g Fe for bulk magnetite. Selective targeting of the DC-SPIONs to KB cancer cells in vitro was demonstrated and quantified using two distinct and complementary imaging modalities: UV-visible and X-ray fluorescence; confocal microscopy confirmed internalization. The results were consistent between the uptake distribution quantified by flow cytometry using 6-TAMRA UV-visible fluorescence intensity and the cellular iron content determined using Xray fluorescence microscopy. C1 [Landmark, Kevin J.; Kelly, Christopher V.; Holl, Mark M. Banaszak; Orr, Bradford G.] Univ Michigan, Program Appl Phys, Ann Arbor, MI 48109 USA. [Kelly, Christopher V.; Holl, Mark M. Banaszak] Univ Michigan, Program Biophys, Ann Arbor, MI 48109 USA. [Hong, Seungpyo; Holl, Mark M. Banaszak] Univ Michigan, Program Macromol Sci & Engn, Ann Arbor, MI 48109 USA. [Ward, Jesse; Penner-Hahn, James E.; Holl, Mark M. Banaszak] Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA. [Orr, Bradford G.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. [Landmark, Kevin J.; Kelly, Christopher V.; Hong, Seungpyo; Kotlyar, Alina; Myc, Andrzej; Thomas, Thommey P.; Baker, James R., Jr.; Holl, Mark M. Banaszak; Orr, Bradford G.] Univ Michigan, Michigan Nanotechnol Inst Med & Biol Sci, Ann Arbor, MI 48109 USA. [DiMaggio, Stassi; Kelly, Christopher V.; Holl, Mark M. Banaszak] Univ Michigan, Graham Environm Sustainabil Inst, Ann Arbor, MI 48109 USA. Xavier Univ, Dept Chem, New Orleans, LA 70125 USA. [Vogt, Stefan] Argonne Natl Lab, X ray Sci Div, Adv Photon Source, Argonne, IL 60439 USA. RP Holl, MMB (reprint author), Univ Michigan, Program Appl Phys, Ann Arbor, MI 48109 USA. EM mbanasza@umich.edu; orr@umich.edu RI Kelly, Christopher/J-1206-2014; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013; Banaszak Holl, Mark/D-2030-2013; OI Kelly, Christopher/0000-0003-0886-8691; Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513; Banaszak Holl, Mark/0000-0001-7759-7456; Penner-Hahn, James/0000-0003-0314-1274 FU NIBIB NIH HHS [5R01EB002657]; NIGMS NIH HHS [5T32GM008270, 5R01GM038047] NR 73 TC 94 Z9 96 U1 4 U2 67 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1936-0851 J9 ACS NANO JI ACS Nano PD APR PY 2008 VL 2 IS 4 BP 773 EP 783 DI 10.1021/nn800034w PG 11 WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 291SB UT WOS:000255216000024 PM 19206610 ER PT J AU Rowda, B Avdeev, M Lee, PL Henry, PF Ling, CD AF Rowda, Budwy Avdeev, Maxim Lee, Peter L. Henry, Paul F. Ling, Chris D. TI Structures of 6H perovskites Ba3CaSb2O9 and Ba3SrSb2O9 determined by synchrotron X-ray diffraction, neutron powder diffraction and ab initio calculations SO ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE LA English DT Article ID AUGMENTED-WAVE METHOD; REFINEMENT; NI AB The structures of the 6H perovskites Ba3B2+Sb25+O9, B = Ca and Sr, have been solved and refined using synchrotron X-ray and neutron powder diffraction data. Ba3CaSb2O9 and Ba3SrSb2O9 have monoclinic C2/c and triclinic P (1) over bar spacegroup symmetries, respectively, while Ba3MgSb2O9 has ideal hexagonal P63/mmc space-group symmetry. The symmetry-lowering distortions are a consequence of internal 'chemical pressure' owing to the increasing effective ionic radius of the alkaline-earth cation in the perovskite B site from Mg2+ (0.72 angstrom) to Ca2+ (1.00 angstrom) to Sr2+ (1.18 angstrom). Increasing the effective ionic radius further to Ba2+ (1.35 angstrom) leads to decomposition at room temperature. The driving force behind the transition from P63/mmc to C2/c is the need to alleviate underbonding of Ba2+ cations in the perovskite A site via octahedral rotations, while the transition from C2/c to P (1) over bar is driven by the need to regularize the shape of the Sb2O9 face-sharing octahedral dimers. Ab initio geometry-optimization calculations were used to find a triclinic starting model for Ba3SrSb2O9. C1 [Rowda, Budwy; Ling, Chris D.] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia. [Avdeev, Maxim; Ling, Chris D.] Australian Nucl Sci & Technol Org, Bragg Inst, PMB 1, Menai, NSW 2234, Australia. [Lee, Peter L.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Henry, Paul F.] Inst Laue Langevin, F-38042 Grenoble 9, France. RP Ling, CD (reprint author), Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia. EM c.ling@chem.usyd.edu.au RI Ling, Chris D/B-2228-2009; D2B, Instrument/F-1072-2012; Avdeev, Maxim/A-5625-2008; Henry, Paul/A-7986-2008 OI Ling, Chris D/0000-0003-2205-3106; Avdeev, Maxim/0000-0003-2366-5809; Henry, Paul/0000-0003-4714-6587 NR 18 TC 4 Z9 4 U1 1 U2 8 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0108-7681 J9 ACTA CRYSTALLOGR B JI Acta Crystallogr. Sect. B-Struct. Sci. PD APR PY 2008 VL 64 BP 154 EP 159 DI 10.1107/S0108768108005041 PN 2 PG 6 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 274HO UT WOS:000253992600003 PM 18369286 ER PT J AU Suescun, L Dabrowski, B AF Suescun, Leopoldo Dabrowski, Bogdan TI Sr4+nMn43+Mnn4+O10+3n : a new homologous series of oxygen-vacancy-ordered perovskites built from Mn3+O5 pyramids and Mn4+O6 octahedra SO ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE LA English DT Article ID SELECTIVE OXIDATION CATALYST; NEUTRON POWDER DIFFRACTION; DEFECT PEROVSKITE; DEFICIENT PEROVSKITES; CRYSTAL-STRUCTURES; X-RAY; PHASES; SYSTEM; SUPERCONDUCTIVITY; COORDINATION AB A new homologous series of oxygen-vacancy-ordered perovskites with the formula Sr4+nMn43+Mnn4+O10+3n is proposed based on the structural trends found for the recently described Sr4Mn4O10, Sr5Mn5O13 and Sr7Mn7O19 compounds. These compounds correspond to n = 0 ( Sr4Mn43+O10), n = 1 (Sr5Mn43+Mn4+O13) and n = 3 ( Sr7Mn43+Mn34+O19) members of the series. A linear set of four Mn3+O5 pyramids placed on the ab plane and pointing along the +x, -y, +y, -x directions defines the n = 0 building block for the series. The nth members can be constructed from blocks containing four pyramids and n Mn4+O6 octahedra with 2/m symmetry. Compounds in the related systems CaMnOx and LaCuOx, containing Mn3+ and Cu2+ pyramids and Mn4+ and Cu3+ octahedra have also been found to be members of the series. The size and charge of the A-site cation and the apical distortion of the pyramidally coordinated B-site cation are shown to be important factors in the stabilization of certain members of the series. A qualitative explanation for the absence of some of the possible members of the series is presented based on these factors. C1 [Suescun, Leopoldo] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Suescun, Leopoldo; Dabrowski, Bogdan] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. RP Suescun, L (reprint author), Univ La Republ, Fac Quim, Cryssmat Lab DETEMA, POB 1157, Montevideo, Uruguay. EM leopoldo@anl.gov OI Suescun, Leopoldo/0000-0002-7606-8074 NR 33 TC 2 Z9 2 U1 0 U2 12 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0108-7681 J9 ACTA CRYSTALLOGR B JI Acta Crystallogr. Sect. B-Struct. Sci. PD APR PY 2008 VL 64 BP 177 EP 186 DI 10.1107/S0108768108002760 PN 2 PG 10 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 274HO UT WOS:000253992600006 PM 18369289 ER PT J AU McMullan, RK Klooster, WT Weber, HP AF McMullan, R. K. Klooster, W. T. Weber, H. -P. TI Deuterated gamma-malonic acid: its neutron crystal structure in relationship to other polymorphs of aliphatic dicarboxylic acids SO ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE LA English DT Article ID PHASE-TRANSITION; HYDROGEN-BONDS; MAGNETIC RESONANCE; THERMAL VIBRATIONS; AMINOBUTYRIC ACID; CARBOXYLIC-ACIDS; DIFFRACTION DATA; CHARGE-DENSITY; SOLID-STATE; MOTION AB Three complete neutron diffraction datasets have been collected for deuterated malonic acid single crystals, DOOC(CD2) COOD, above (153 K), just below (56 K) and further below (50 K) the low-temperature phase transition (T-c = 57 K). The structural details obtained for this transition, studied previously solely by spectroscopic and calorimetric techniques, clearly establish its first-order nature. At 153 K, the space group is P (1) over bar, Z = 2, Z' = 1. The molecules are packed as linear chains linked end-to-end by asymmetric hydrogen bonds so that the carboxyl groups form cyclic dimers. The deuterons in the carboxyl links are ordered. Neighboring chains are cross-linked through C-D center dot center dot center dot O hydrogen bonds. Upon cooling through the transition the cell doubles along the a axis. Molecules which are equivalent by symmetry above Tc become independent below Tc owing to conformational changes in alternate chains. At 50 K, the space group is P (1) over bar, Z = 4, Z' = 2. Thermal motion analysis, using for all three temperatures the same segmented rigid-body model, reveals a large torsional motion around the one COOD group associated with the conformational change. Refinements were carried out on all three datasets with an anharmonic structural model, including higher-order displacement tensors (Gram-Charlier expansion up to fourth order). Only atoms involved in torsional motion exhibit a significant anharmonic component which increases with temperature. C1 [Weber, H. -P.] ACCE Res, F-38960 St Aupre, France. [McMullan, R. K.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Klooster, W. T.] Inst Mat Res & Engn, Singapore 117602, Singapore. [Klooster, W. T.] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore. RP Weber, HP (reprint author), ACCE Res, Grand Vivier, F-38960 St Aupre, France. EM hpweber@wanadoo.fr NR 66 TC 11 Z9 11 U1 1 U2 9 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0108-7681 J9 ACTA CRYSTALLOGR B JI Acta Crystallogr. Sect. B-Struct. Sci. PD APR PY 2008 VL 64 BP 230 EP 239 DI 10.1107/S0108768108000268 PN 2 PG 10 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 274HO UT WOS:000253992600012 PM 18369295 ER PT J AU Baker, E Dauter, Z Guss, M Einspahr, H AF Baker, Edward Dauter, Zbigniew Guss, Mitchell Einspahr, Howard TI Deposition of diffraction images to be discussed at the Open Meeting of the Commission on Biological Macromolecules of the IUCr in Osaka SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Editorial Material C1 [Baker, Edward] Univ Auckland, Sch Biol Sci, Auckland 1, New Zealand. [Dauter, Zbigniew] NCI, MCL, Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Guss, Mitchell] Univ Sydney, Sch Mol & Microbial Biosci, Sydney, NSW 2006, Australia. RP Baker, E (reprint author), Univ Auckland, Sch Biol Sci, Private Bag 92-019, Auckland 1, New Zealand. OI Guss, Mitchell/0000-0003-4259-6079 NR 0 TC 5 Z9 5 U1 0 U2 0 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD APR PY 2008 VL 64 BP 337 EP 338 DI 10.1107/S0907444908004915 PN 4 PG 2 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 277XJ UT WOS:000254247700001 PM 18391400 ER PT J AU Sanishvili, R Nagarajan, V Yoder, D Becker, M Xu, SL Corcoran, S Akey, DL Smith, JL Fischetti, RF AF Sanishvili, Ruslan Nagarajan, Venugopalan Yoder, Derek Becker, Michael Xu, Shenglan Corcoran, Stephen Akey, David L. Smith, Janet L. Fischetti, Robert F. TI A 7 mu m mini-beam improves diffraction data from small or imperfect crystals of macromolecules SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID BOUNCE ELLIPSOIDAL CAPILLARY; LIPIDIC CUBIC PHASES; FRESNEL ZONE-PLATE; PROTEIN CRYSTALS; RADIATION-DAMAGE; MEMBRANE-PROTEINS; CRYSTALLIZATION; MICROCRYSTALS; CRYSTALLOGRAPHY; SOFTWARE AB A simple apparatus for achieving beam sizes in the range 5-10 mu m on a synchrotron beamline was implemented in combination with a small 125 x 25 mm focus. The resulting beam had sufficient flux for crystallographic data collection from samples smaller than 10 x 10 x 10 mm. Sample data were collected representing three different scenarios: (i) a complete 2.0 angstrom data set from a single strongly diffracting microcrystal, (ii) a complete and redundant 1.94 angstrom data set obtained by merging data from six microcrystals and (iii) a complete 2.24 angstrom data set from a needle-shaped crystal with less than 12 x 10 mu m cross-section and average diffracting power. The resulting data were of high quality, leading to well refined structures with good electron-density maps. The signal-to-noise ratios for data collected from small crystals with the mini-beam were significantly higher than for equivalent data collected from the same crystal with a 125 x 25 mu m beam. Relative to this large beam, use of the mini-beam also resulted in lower refined crystal mosaicities. The mini-beam proved to be advantageous for inhomogeneous large crystals, where better ordered regions could be selected by the smaller beam. C1 [Sanishvili, Ruslan; Nagarajan, Venugopalan; Yoder, Derek; Becker, Michael; Xu, Shenglan; Corcoran, Stephen; Fischetti, Robert F.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Akey, David L.; Smith, Janet L.] Univ Michigan, Dept Biol Chem, Inst Life Sci, Ann Arbor, MI 48109 USA. RP Sanishvili, R (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM rsanishvili@anl.gov FU NCI NIH HHS [Y1-CO-1020, Y01 CO1020-11]; NIGMS NIH HHS [Y01 GM1104-11, Y1-GM-1104] NR 39 TC 43 Z9 43 U1 0 U2 1 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD APR PY 2008 VL 64 BP 425 EP 435 DI 10.1107/S0907444908001741 PN 4 PG 11 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 277XJ UT WOS:000254247700010 PM 18391409 ER PT J AU Moiseeva, N Bau, R Swenson, SD Markland, FS Choe, JY Liu, ZJ Allaire, M AF Moiseeva, Natalia Bau, Robert Swenson, Stephen D. Markland, Francis S., Jr. Choe, Jun-Yong Liu, Zhi-Jie Allaire, Marc TI Structure of acostatin, a dimeric disintegrin from Southern copperhead (Agkistrodon contortrix contortrix), at 1.7 angstrom resolution SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID VIPER ECHIS-CARINATUS; CRYSTAL-STRUCTURE; 3-DIMENSIONAL STRUCTURE; MOLECULAR REPLACEMENT; VENOM DISINTEGRINS; BINDING-SITE; SNAKE-VENOM; RGD; RECOGNITION; NMR AB Disintegrins are a family of small (4-14 kDa) proteins that bind to another class of proteins, integrins. Therefore, as integrin inhibitors, they can be exploited as anticancer and antiplatelet agents. Acostatin, an alpha beta heterodimeric disintegrin, has been isolated from the venom of Southern copperhead ( Agkistrodon contortrix contortrix). The three-dimensional structure of acostatin has been determined by macromolecular crystallography using the molecular-replacement method. The asymmetric unit of the acostatin crystals consists of two heterodimers. The structure has been refined to an R-work and R-free of 18.6% and 21.5%, respectively, using all data in the 20-1.7 angstrom resolution range. The structure of all subunits is similar and is well ordered into N-terminal and C-terminal clusters with four intramolecular disulfide bonds. The overall fold consists of short beta-sheets, each of which is formed by a pair of antiparallel beta-strands connected by beta-turns and flexible loops of different lengths. Conformational flexibility is found in the RGD loops and in the C-terminal segment. The interaction of two N-terminal clusters via two intermolecular disulfide bridges anchors the alpha beta chains of the acostatin dimers. The C- terminal clusters of the heterodimer project in opposite directions and form a larger angle between them in comparison with other dimeric disintegrins. Extensive interactions are observed between two heterodimers, revealing an alpha beta beta alpha acostatin tetramer. Further experiments are required to identify whether the alpha beta beta alpha acostatin complex plays a functional role in vivo. C1 [Bau, Robert] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA. [Moiseeva, Natalia; Allaire, Marc] Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA. [Swenson, Stephen D.; Markland, Francis S., Jr.] Univ So Calif, Keck Sch Med, Dept Biochem & Mol Biol, Los Angeles, CA 90033 USA. [Swenson, Stephen D.; Markland, Francis S., Jr.] Univ So Calif, Keck Sch Med, Kenneth Norris Jr Comprehens Canc Ctr, Los Angeles, CA 90033 USA. [Choe, Jun-Yong] CALTECH, Howard Hughes Med Inst, Div Chem & Chem Engn, Pasadena, CA 91125 USA. [Liu, Zhi-Jie] Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA. [Liu, Zhi-Jie] Univ Georgia, Dept Chem, Athens, GA 30602 USA. RP Bau, R (reprint author), Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA. EM bau@usc.edu; allaire@bnl.gov RI Liu, Zhi-Jie/A-3946-2012 OI Liu, Zhi-Jie/0000-0001-7279-2893 FU NIGMS NIH HHS [Y01 GM000080, Y1 GM-0080-03] NR 34 TC 8 Z9 11 U1 0 U2 2 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD APR PY 2008 VL 64 BP 466 EP 470 DI 10.1107/S0907444908002370 PN 4 PG 5 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 277XJ UT WOS:000254247700014 PM 18391413 ER PT J AU Baker, E Dauter, Z Guss, M Einspahr, H AF Baker, Edward Dauter, Zbigniew Guss, Mitchell Einspahr, Howard TI Deposition of diffraction images to be discussed at the Open Meeting of the Commission on Biological Macromolecules of the IUCr in Osaka SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION COMMUNICATIONS LA English DT Editorial Material C1 [Baker, Edward] Univ Auckland, Sch Biol Sci, Auckland 1, New Zealand. [Dauter, Zbigniew] NCI, Argonne Natl Lab, MCL, Argonne, IL 60439 USA. [Guss, Mitchell] Univ Sydney, Sch Mol & Microbiol Sci, Sydney, NSW 2006, Australia. RP Baker, E (reprint author), Univ Auckland, Sch Biol Sci, Private Bag 92-019, Auckland 1, New Zealand. OI Guss, Mitchell/0000-0003-4259-6079 NR 0 TC 2 Z9 2 U1 0 U2 0 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 1744-3091 J9 ACTA CRYSTALLOGR F JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun. PD APR PY 2008 VL 64 BP 231 EP 232 DI 10.1107/S1744309108007525 PN 4 PG 2 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 281CE UT WOS:000254473200001 PM 18391414 ER PT J AU Wood, SJ Li, XL Cotta, MA Biely, P Duke, NEC Schiffer, M Pokkuluri, PR AF Wood, S. J. Li, X. -L. Cotta, M. A. Biely, P. Duke, N. E. C. Schiffer, M. Pokkuluri, P. R. TI Crystallization and preliminary X-ray diffraction analysis of the glucuronoyl esterase catalytic domain from Hypocrea jecorina SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION COMMUNICATIONS LA English DT Article ID PROTEINS; CRYSTALS AB The catalytic domain of the glucuronoyl esterase from Hypocrea jecorina (anamorph Trichoderma reesei) was overexpresssed, purified and crystallized by the sitting-drop vapor-diffusion method using 1.4 M sodium/potassium phosphate pH 6.9. The crystals belonged to space group P2(1)2(1)2(1) and X-ray diffraction data were collected to 1.9 A resolution. This is the first enzyme with glucoronoyl esterase activity to be crystallized; its structure will be valuable in lignocellulose-degradation research. C1 [Wood, S. J.; Duke, N. E. C.; Schiffer, M.; Pokkuluri, P. R.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Li, X. -L.; Cotta, M. A.] USDA ARS, Natl Ctr Agr Utilizat Res, Fermentat Biotechnol Res Unit, Peoria, IL 61604 USA. [Biely, P.] Slovak Acad Sci, Inst Chem, Bratislava 84538, Slovakia. RP Wood, SJ (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM rajp@anl.gov OI Cotta, Michael/0000-0003-4565-7754 NR 10 TC 6 Z9 6 U1 1 U2 3 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 1744-3091 J9 ACTA CRYSTALLOGR F JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun. PD APR PY 2008 VL 64 BP 255 EP 257 DI 10.1107/S1744309108004594 PN 4 PG 3 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 281CE UT WOS:000254473200007 PM 18391420 ER PT J AU Kovalevsky, AY Chatake, T Shibayama, N Park, SY Ishikawa, T Mustyakimov, M Fisher, SZ Langan, P Morimoto, Y AF Kovalevsky, A. Y. Chatake, T. Shibayama, N. Park, S. -Y. Ishikawa, T. Mustyakimov, M. Fisher, S. Z. Langan, P. Morimoto, Y. TI Preliminary time-of-flight neutron diffraction study of human deoxyhemoglobin SO ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY AND CRYSTALLIZATION COMMUNICATIONS LA English DT Article ID X-RAY-DIFFRACTION; PROTEIN CRYSTALLOGRAPHY; SPALLATION NEUTRONS; LAUE DIFFRACTION; DATA QUALITY; HEMOGLOBIN; MECHANISM; ENDOTHIAPEPSIN; RESIDUES AB Human hemoglobin ( HbA) is an intricate system that has evolved to efficiently transport oxygen molecules ( O-2) from lung to tissue. Its quaternary structure can fluctuate between two conformations, T ( tense or deoxy) and R ( relaxed or oxy), which have low and high affinity for O2, respectively. The binding of O2 to the heme sites of HbA is regulated by protons and by inorganic anions. In order to investigate the role of the protonation states of protein residues in O2 binding, large crystals of deoxy HbA ( similar to 20 mm(3)) were grown in D2O under anaerobic conditions for neutron diffraction studies. A time-of-flight neutron data set was collected to 1.8 angstrom resolution on the Protein Crystallography Station ( PCS) at the spallation source run by Los Alamos Neutron Science Center ( LANSCE). The HbA tetramer ( 64.6 kDa; 574 residues excluding the four heme groups) occupies the largest asymmetric unit ( space group P2(1)) from which a high-resolution neutron data set has been collected to date. C1 [Chatake, T.; Ishikawa, T.; Morimoto, Y.] Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan. [Shibayama, N.] Jichi Med Univ, Dept Physiol, Shimotsuke, Tochigi 3290498, Japan. [Kovalevsky, A. Y.; Mustyakimov, M.; Fisher, S. Z.; Langan, P.] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. [Park, S. -Y.] Yokohama City Univ, Grad Sch Integrated Sci, Yokohama, Kanagawa 2300045, Japan. [Langan, P.] Univ Toledo, Dept Chem, Toledo, OH 43606 USA. RP Morimoto, Y (reprint author), Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan. EM morimoto@rri.kyoto-u.ac.jp RI Langan, Paul/N-5237-2015; OI Langan, Paul/0000-0002-0247-3122; Kovalevsky, Andrey/0000-0003-4459-9142 FU NIGMS NIH HHS [1R01GM071939-01, R01 GM071939, R01 GM071939-05] NR 33 TC 9 Z9 9 U1 0 U2 1 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 1744-3091 J9 ACTA CRYSTALLOGR F JI Acta Crystallogr. F-Struct. Biol. Cryst. Commun. PD APR PY 2008 VL 64 BP 270 EP 273 DI 10.1107/S1744309108005137 PN 4 PG 4 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 281CE UT WOS:000254473200011 PM 18391424 ER PT J AU Hayashi, T Sarosi, PM Schneibel, JH Mills, MJ AF Hayashi, T. Sarosi, P. M. Schneibel, J. H. Mills, M. J. TI Creep response and deformation processes in nanocluster-strengthened ferritic steels SO ACTA MATERIALIA LA English DT Article DE scanning electron microscopy; transmission electron microscopy; energy-filtered transmission microscopy; creep; anomalous grain growth ID PARTICLE-DISLOCATION INTERACTION; HIGH-TEMPERATURES; HARD PARTICLES; GRAIN-GROWTH; ALLOYS; STABILITY; MODEL; MA957; RECRYSTALLIZATION; DIFFUSION AB There is increasing demand for oxide-dispersion-strengthened ferritic alloys that possess both high-temperature strength and irradiation resistance. Improvement of the high-temperature properties requires an understanding of the operative deformation mechanisms. In this study, the microstructures and creep properties of the oxide-dispersion-strengthened alloy 14YWT have been evaluated as a function of annealing at 1000 degrees C for 1 hour up to 32 days. The ultra-fine initial grain size (approx. 100 nm) is stable after the shortest annealing time, and even after subsequent creep at 800 degrees C. Longer annealing periods lead to anomalous grain growth that is further enhanced following creep. Remarkably, the minimum creep rate is relatively insensitive to this dramatic grain-coarsening. The creep strength is attributed to highly stable, Ti-rich nanoclusters that appear to pin the initial primary grains, and present strong obstacles to dislocation motion in the large, anomalously grown grains. Published by Elsevier Ltd on behalf of Acta Materialia Inc. C1 [Hayashi, T.; Sarosi, P. M.; Mills, M. J.] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA. [Schneibel, J. H.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN USA. RP Sarosi, PM (reprint author), Ohio State Univ, Dept Mat Sci & Engn, 116 W 19Th Ave, Columbus, OH 43210 USA. EM sarosi.2@osu.edu NR 34 TC 71 Z9 73 U1 5 U2 27 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1359-6454 J9 ACTA MATER JI Acta Mater. PD APR PY 2008 VL 56 IS 7 BP 1407 EP 1416 DI 10.1016/j.actamat.2007.11.038 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 292ZS UT WOS:000255305200001 ER PT J AU Boatner, L Longmire, H Rouleau, C Gray, A AF Boatner, Lynn Longmire, Hu Rouleau, Christopher Gray, Allison TI Excimer laser etching SO ADVANCED MATERIALS & PROCESSES LA English DT Article AB This article is based on a poster that won second prize in the "Unique, Unusual, and New Techniques in Microscopy" category in the 2007 International Metallographic Contest sponsored by the International Metallographic Society, an Affiliate Society of ASM International. C1 [Boatner, Lynn; Longmire, Hu; Rouleau, Christopher; Gray, Allison] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Boatner, L (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA. RI Rouleau, Christopher/Q-2737-2015; Boatner, Lynn/I-6428-2013 OI Rouleau, Christopher/0000-0002-5488-3537; Boatner, Lynn/0000-0002-0235-7594 NR 0 TC 0 Z9 0 U1 0 U2 1 PU ASM INT PI MATERIALS PARK PA SUBSCRIPTIONS SPECIALIST CUSTOMER SERVICE, MATERIALS PARK, OH 44073-0002 USA SN 0882-7958 J9 ADV MATER PROCESS JI Adv. Mater. Process. PD APR PY 2008 VL 166 IS 4 BP 39 EP 39 PG 1 WC Materials Science, Multidisciplinary SC Materials Science GA 289PR UT WOS:000255066900008 ER PT J AU Blasone, RS Vrugt, JA Madsen, H Rosbjerg, D Robinson, BA Zyvoloski, GA AF Blasone, Roberta-Serena Vrugt, Jasper A. Madsen, Henrik Rosbjerg, Dan Robinson, Bruce A. Zyvoloski, George A. TI Generalized likelihood uncertainty estimation (GLUE) using adaptive Markov chain Monte Carlo sampling SO ADVANCES IN WATER RESOURCES LA English DT Article DE hydrologic modeling; uncertainty estimation; generalized likelihood uncertainty estimation (GLUE); Markov chain Monte Carlo; rainfall-runoff models; calibration ID RAINFALL-RUNOFF MODEL; HYDROLOGIC-MODELS; AUTOMATIC CALIBRATION; PARAMETER-ESTIMATION; METROPOLIS ALGORITHM; MULTIPLE OBJECTIVES; INFORMATION; SENSITIVITY; OPTIMIZATION; EQUIFINALITY AB In the last few decades hydrologists have made tremendous progress in using dynamic simulation models for the analysis and understanding of hydrologic systems. However, predictions with these models are often deterministic and as such they focus on the most probable forecast, without an explicit estimate of the associated uncertainty. This uncertainty arises from incomplete process representation, uncertainty in initial conditions, input, output and parameter error. The generalized likelihood uncertainty estimation (GLUE) framework was one of the first attempts to represent prediction uncertainty within the context of Monte Carlo (MC) analysis coupled with Bayesian estimation and propagation of uncertainty. Because of its flexibility, ease of implementation and its suitability for parallel implementation on distributed computer systems, the GLUE method has been used in a wide variety of applications. However, the MC based sampling strategy of the prior parameter space typically utilized in GLUE is not particularly efficient in finding behavioral simulations. This becomes especially problematic for high-dimensional parameter estimation problems, and in the case of complex simulation models that require significant computational time to run and produce the desired output. In this paper we improve the computational efficiency of GLUE by sampling the prior parameter space using an adaptive Markov Chain Monte Carlo scheme (the Shuffled Complex Evolution Metropolis (SCEM-UA) algorithm). Moreover, we propose an alternative strategy to determine the value of the cutoff threshold based on the appropriate coverage of the resulting uncertainty bounds. We demonstrate the Superiority of this revised GLUE method with three different conceptual watershed models of increasing complexity, using both synthetic and real-world stream-flow data from two catchments with different hydrologic regimes. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Vrugt, Jasper A.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Blasone, Roberta-Serena; Rosbjerg, Dan] Tech Univ Denmark, Dept Environm Engn, Kongens Lyngby, Denmark. [Madsen, Henrik] DHI Water Environm & Hlth, Horsholm, Denmark. [Robinson, Bruce A.] Los Alamos Natl Lab, Civilian Nucl Program Off SPO CNP, Los Alamos, NM USA. [Zyvoloski, George A.] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. RP Vrugt, JA (reprint author), Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. EM vrugt@lanl.gov RI Vrugt, Jasper/C-3660-2008; Robinson, Bruce/F-6031-2010; OI Rosbjerg, Dan/0000-0003-2204-8649 NR 62 TC 123 Z9 136 U1 6 U2 47 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0309-1708 J9 ADV WATER RESOUR JI Adv. Water Resour. PD APR PY 2008 VL 31 IS 4 BP 630 EP 648 DI 10.1016/j.advwatres.2007.12.003 PG 19 WC Water Resources SC Water Resources GA 292YZ UT WOS:000255303300003 ER PT J AU Augustenborg, CA Carton, OT Schulte, RPO Suffet, IH AF Augustenborg, C. A. Carton, O. T. Schulte, R. P. O. Suffet, I. H. TI Response of silage yield to land application of out-wintering pad effluent in Ireland SO AGRICULTURAL WATER MANAGEMENT LA English DT Article DE effluent; dry matter yield; nitrogen; out-wintering pad; manure; livestock bedding ID DAIRY SHED EFFLUENT; AMMONIUM FERTILIZER; WATER; PHOSPHORUS; NITROGEN; AGRICULTURE; SLUDGE; SOILS AB Out-wintering pads (OWPs) are a low capital-cost cattle housing system gaining popularity in Ireland and other countries. OWPs consist of a layer of timber residue over an artificially drained surface that separates solid and liquid excreta created during animal confinement. Residues from OWPs that require management include liquid effluent (urine and water) and spent timber residue (timber soiled with manure). The current strategy for on-farm management of effluent and spent timber residue is to apply them to grassland used for the production of silage. The objective of this study was to determine the dry matter (DM) yield response of first and residual cut silage to three rates of OWP effluent applied to grassland. These results were compared to silage crop response to inorganic N fertilizer and to cattle slurry (manure and urine) from a conventional livestock housing system. In four out of five trials, application of OWP effluent of up to 29 kg ha(-1) of total N input resulted in a significant DM yield response compared to control treatments for first cut silage. The efficiency of OWP effluent ranged from 74 to 90% at the highest application rate (29 kg N ha-1) compared to inorganic fertilizer for first cut silage DM yield. Cattle slurry N efficiency was 16-50% at a similar N application rate (27.9 kg N ha-1) for first cut silage DM yield. (c) 2007 Elsevier B.V. All rights reserved. C1 [Augustenborg, C. A.; Carton, O. T.; Schulte, R. P. O.] Teagasc, Res Ctr, Agr & Food Dev Author, Wexford, Ireland. [Augustenborg, C. A.; Suffet, I. H.] Univ Calif Los Angeles, Environm Sci & Engn Program, Los Angeles, CA 90095 USA. RP Augustenborg, CA (reprint author), Teagasc, Res Ctr, Agr & Food Dev Author, Wexford, Ireland. EM caraa@ucla.edu NR 37 TC 5 Z9 6 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-3774 J9 AGR WATER MANAGE JI Agric. Water Manage. PD APR PY 2008 VL 95 IS 4 BP 367 EP 374 DI 10.1016/j.agwat.2007.10.018 PG 8 WC Agronomy; Water Resources SC Agriculture; Water Resources GA 295DP UT WOS:000255455500003 ER PT J AU Mondy, LA Retallack, C Thompson, K Barney, J Grillet, A Graham, AL AF Mondy, Lisa A. Retallack, Charles Thompson, Kyle Barney, Jeremy Grillet, Anne Graham, Alan L. TI On bubbles rising through suspensions of solid particles SO AICHE JOURNAL LA English DT Article DE bubble phenomena; settling/sedimentation; suspensions ID FALLING-BALL VISCOMETRY; CONCENTRATED SUSPENSIONS; SPHERICAL-PARTICLES; CYLINDRICAL-TUBES; FLUIDIZED-BEDS; GAS-BUBBLES; VISCOSITY; MOTION; RISE; FLOW AB Individual bubbles rising through suspensions of spherical particles neutrally buoyant in viscous Newtonian liquids are tracked with real time radiography. The effects of the containing cylinder, suspended particle, and bubble sizes are reported for particle volume fractions ranging from 0.20 to 0.50. In the most concentrated suspensions, the effect of the bottom surface is felt by the bubble much farther into the suspension than would be true for a single-phase Newtonian liquid. Corrected for wall effects, the apparent viscosity felt by the bubbles is independent of the relative size of the bubble to the particle over a wide range of parameters, and is approximately linear with the suspended particle volume fraction, in contrast to the exponential dependence derived in conventional rheometry. Finally, in the most concentrated suspensions, the bubble deforms to a prolate spheroidal shape despite the lack of significant inertial effects or a viscoelastic suspending liquid. (c) 2008 American Institute of Chemical Engineers. C1 [Mondy, Lisa A.; Retallack, Charles; Thompson, Kyle; Barney, Jeremy; Grillet, Anne] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Graham, Alan L.] Los Alamos Natl Lab, Los Alamos, NM 87145 USA. RP Mondy, LA (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM lamondv@sandia.gov NR 39 TC 4 Z9 4 U1 0 U2 2 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 0001-1541 J9 AICHE J JI AICHE J. PD APR PY 2008 VL 54 IS 4 BP 862 EP 871 DI 10.1002/aic.11440 PG 10 WC Engineering, Chemical SC Engineering GA 277MP UT WOS:000254217100004 ER PT J AU Welch, SM Waldron, JL Eversole, AG Simoes, JC AF Welch, Shane M. Waldron, Jayme L. Eversole, Arnold G. Simoes, Jody C. TI Seasonal variation and ecological effects of Camp Shelby burrowing crayfish (Fallicambarus gordoni) burrows SO AMERICAN MIDLAND NATURALIST LA English DT Article ID PITCHER-PLANT BOGS; MISSISSIPPI AB Foam casts and burrow excavations were used to examine Fallicambarus gardoni burrow occupancy rates, seasonal variation in burrow morphology, correlation between crayfish abundance and burrow abundance and potential ecological effects of burrowing through soil disturbance and the creation of fossorial habitat. Burrow occupancy rates were high (75%) and consistent between active and inactive seasons, although several burrow metrics differed significantly between seasons. Crayfish abundance was strongly correlated with burrow abundance. Estimates of annual soil disturbance (82 metric tons/ha/y) and fossorial habitat created (29-49 km/ha) suggest F. gordoni serves important ecological functions within the greater habitat. C1 [Welch, Shane M.; Eversole, Arnold G.] Clemson Univ, Dept Forestry & Nat Resources, Clemson, SC 29634 USA. [Waldron, Jayme L.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. RP Welch, SM (reprint author), Clemson Univ, Dept Forestry & Nat Resources, Clemson, SC 29634 USA. EM shanemwelch@gmail.com NR 12 TC 9 Z9 9 U1 1 U2 8 PU AMER MIDLAND NATURALIST PI NOTRE DAME PA UNIV NOTRE DAME, BOX 369, ROOM 295 GLSC, NOTRE DAME, IN 46556 USA SN 0003-0031 J9 AM MIDL NAT JI Am. Midl. Nat. PD APR PY 2008 VL 159 IS 2 BP 378 EP 384 DI 10.1674/0003-0031(2008)159[378:SVAEEO]2.0.CO;2 PG 7 WC Biodiversity Conservation; Ecology SC Biodiversity & Conservation; Environmental Sciences & Ecology GA 286KH UT WOS:000254844300010 ER PT J AU Tschauner, O Kiefer, B Liu, H Sinogeikin, S Somayazulu, M Luo, SN AF Tschauner, Oliver Kiefer, Boris Liu, Haozhe Sinogeikin, Stanislas Somayazulu, Maddury Luo, Sheng-Nian TI Possible structural polymorphism in Al-bearing magnesiumsilicate post-perovskite SO AMERICAN MINERALOGIST LA English DT Article DE crystal structure; post-perovskite; XRD data; quantum mechanical calculation; high-pressure studies; Raman spectroscopy ID AUGMENTED-WAVE METHOD; EARTHS D''-LAYER; PHASE-TRANSITION; MGSIO3 PEROVSKITE; HIGH-PRESSURE; LOWER MANTLE; REFINEMENT; DYNAMICS; GPA AB In the present study, we summarize indications for the existence of kinked post-perovskite structures in the MAS system. X-ray diffraction data and Raman spectra of aluminous magnesium metasilicate post-perovskite are inconsistent with the CalrO(3) structure. Instead the observations are consistent with structures intermediate between the perovskite and the CalrO(3) structure. Ab initio calculations show that the enthalpies of the kinked structures are slightly higher than the CalrO(3) structure at 0 K. Finite temperature, minor element chemistry, kinetics of phase transformation, and actual stress regime are plausible reasons for the observed differences between the present and the previously reported post-perovskite phases. C1 [Tschauner, Oliver] Univ Nevada, Dept Phys, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA. [Tschauner, Oliver] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA. [Kiefer, Boris] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA. [Liu, Haozhe; Sinogeikin, Stanislas; Somayazulu, Maddury] Argonne Natl Lab, Adv Photon Source, HPCAT, Argonne, IL 60439 USA. [Liu, Haozhe] Res Acad Sci & Technol, Ctr Condensed Matter Sci & Technol, Harbin 150080, Peoples R China. [Somayazulu, Maddury] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA. [Luo, Sheng-Nian] Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA. RP Tschauner, O (reprint author), Univ Nevada, Dept Phys, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA. EM olivert@physics.unlv.edu RI Liu, Haozhe/E-6169-2011; Luo, Sheng-Nian /D-2257-2010 OI Luo, Sheng-Nian /0000-0002-7538-0541 NR 29 TC 10 Z9 10 U1 0 U2 9 PU MINERALOGICAL SOC AMER PI CHANTILLY PA 3635 CONCORDE PKWY STE 500, CHANTILLY, VA 20151-1125 USA SN 0003-004X EI 1945-3027 J9 AM MINERAL JI Am. Miner. PD APR PY 2008 VL 93 IS 4 BP 533 EP 539 DI 10.2138/am.2008.2372 PG 7 WC Geochemistry & Geophysics; Mineralogy SC Geochemistry & Geophysics; Mineralogy GA 283SU UT WOS:000254657600005 ER PT J AU Ohno, T Wang, ZM Bro, R AF Ohno, Tsutomu Wang, Zheming Bro, Rasmus TI PowerSlicing to determine fluorescence lifetimes of water-soluble organic matter derived from soils, plant biomass, and animal manures SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY LA English DT Article DE fluorescence spectroscopy; dissolved organic matter; lifetimes; parallel factor analysis ID FULVIC-ACID; DECOMPOSITION; SPECTROSCOPY AB Time-resolved fluorescence spectroscopy was used to characterize water-soluble organic matter (WSOM) which plays an important role in soil ecosystem processes. WSOM was extracted from plant biomass, animal manures, and soils from controlled cropping systems studies with known histories of organic amendments. Lifetime constants were derived using the multi-way PowerSlicing method which provides a non-iterative, multi-exponential fitting of decay profiles. The lifetimes obtained by PowerSlicing were not significantly different from those obtained using the traditional discrete components analysis. The three components attributed to WSOM had lifetimes of 0.38 +/- 0.14, 2.11 +/- 0.72, and 7.08 +/- 1.18 ns which are in agreement with previous lifetimes reported for humic substances. This study provides further support for the new paradigm for the structure of soil organic matter where the organic matter is composed of low-molecular-weight components held together by hydrogen bonding and hydrophobic interactions. C1 [Ohno, Tsutomu] Univ Maine, Dept Plant Soil & Environm Sci, Orono, ME 04469 USA. [Wang, Zheming] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Bro, Rasmus] Univ Copenhagen, Dept Food Sci, Fac Life Sci, DK-1958 Frederiksberg, Denmark. RP Ohno, T (reprint author), Univ Maine, Dept Plant Soil & Environm Sci, 5722 Deering Hall, Orono, ME 04469 USA. EM ohno@maine.edu RI Wang, Zheming/E-8244-2010; Bro, Rasmus/A-7898-2008; Bro, Rasmus/D-2378-2015 OI Wang, Zheming/0000-0002-1986-4357; Bro, Rasmus/0000-0002-7641-4854; Bro, Rasmus/0000-0002-7641-4854 NR 18 TC 2 Z9 2 U1 0 U2 8 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 1618-2642 J9 ANAL BIOANAL CHEM JI Anal. Bioanal. Chem. PD APR PY 2008 VL 390 IS 8 BP 2189 EP 2194 DI 10.1007/s00216-008-1963-6 PG 6 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA 285CU UT WOS:000254755700025 PM 18317739 ER PT J AU Clowers, BH Belov, ME Prior, DC William, FD Ibrahim, Y Smith, RD AF Clowers, Brian H. Belov, Mikhail E. Prior, David C. Danielson, William F., III Ibrahim, Yehia Smith, Richard D. TI Pseudorandom sequence modifications for ion mobility orthogonal time-of-flight mass spectrometry SO ANALYTICAL CHEMISTRY LA English DT Article ID GAS-CHROMATOGRAPHY; FUNNEL INTERFACE; TRAP INTERFACE; IMS-IMS; PRESSURE; PERFORMANCE; SEPARATION; PEPTIDE; PROTEIN; MS AB Due to the inherently low duty cycle of ion mobility spectrometry (IMS) experiments that sample from continuous ion sources, a range of experimental advances have been developed to maximize ion utilization efficiency. The use of ion trapping and accumulation approaches prior to the ion mobility drift tube has demonstrated significant gains over discrete sampling from continuous sources but have traditionally relied upon a signal averaging (SA) to attain analytically useful signal-to-noise ratios (SNR). Multiplexed (MP) techniques based upon the Hadamard transform offer an alternative experimental approach by which ion utilization efficiency can be elevated from similar to 1 to similar to 50%. Recently, our research group demonstrated a unique multiplexed ion mobility time-of-flight (MP-IMS-TOF) approach that incorporates ion trapping and can extend ion utilization efficiency beyond 50%. However, the spectral reconstruction of the multiplexed signal using this experiment approach requires the use of sample-specific weighting designs. Such general weighting designs have been shown to significantly enhance ion utilization efficiency using this MP technique, but cannot be universally applied. By modifying both the ion trapping and the pseudorandom sequence (PRS) used for the MP experiment, we have eliminated the need for complex weighting matrices. For both simple and complex mixtures, SNR enhancements of up to 13 were routinely observed as compared to the SA-IMS-TOF approach. In addition, this new class of PRS provides a 2-fold enhancement in the number of ion gate pulses per unit time compared to the traditional HT-IMS experiment. C1 [Clowers, Brian H.; Belov, Mikhail E.; Prior, David C.; Danielson, William F., III; Ibrahim, Yehia; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. RP Belov, ME (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 999, Richland, WA 99352 USA. EM mikhail.belov@pnl.gov RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 FU NCI NIH HHS [R21 CA126191, R21 CA126191-01, R21 CA12619101]; NCRR NIH HHS [P41 RR018522, P41 RR018522-05, RR18522] NR 49 TC 15 Z9 15 U1 1 U2 23 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 EI 1520-6882 J9 ANAL CHEM JI Anal. Chem. PD APR 1 PY 2008 VL 80 IS 7 BP 2464 EP 2473 DI 10.1021/ac7022712 PG 10 WC Chemistry, Analytical SC Chemistry GA 282UU UT WOS:000254593500028 PM 18311942 ER PT J AU Petkovic, LM Ginosar, DM Rollins, HW Burch, KC Pinhero, PJ Farrell, HH AF Petkovic, L. M. Ginosar, D. M. Rollins, H. W. Burch, K. C. Pinhero, P. J. Farrell, H. H. TI Pt/TiO2 (rutile) catalysts for sulfuric acid decomposition in sulfur-based thermochemical water-splitting cycles SO APPLIED CATALYSIS A-GENERAL LA English DT Article DE sulfuric acid decomposition catalysts; Thermochemical water splitting; Sulfur-iodine cycle; Platinum titania catalysts ID HYDROGEN-PRODUCTION; CO ADSORPTION; TIO2; OXIDES; MODEL AB Thermochemical cycles consist of a series of chemical reactions to produce hydrogen from water at lower temperatures than by direct thermal decomposition. All the sulfur-based cycles for water splitting employ the sulfuric acid decomposition reaction. This work reports the studies performed on 1 wt% Pt/TiO2 (rutile) catalysts submitted to flowing concentrated sulfuric acid at 1123 K and atmospheric pressure for different times on stream between 0 and 548 h. Catalyst activity showed an initial decrease that lasted for about 66 h, followed by a slight recovery of activity between 66 and 102 h TOS, and a period of slower deactivation after 102 It TOS. Catalyst sulfation did not seem to be detrimental to catalyst activity. The activity profile suggested that a complex dynamic situation, involving platinum sintering, volatilization, and oxidation, along with TiO2 morphological changes, affected catalyst activity in a non-monotonic way. (c) 2007 Elsevier B.V. All rights reserved. C1 [Petkovic, L. M.; Ginosar, D. M.; Rollins, H. W.; Burch, K. C.; Pinhero, P. J.; Farrell, H. H.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Petkovic, LM (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA. EM Lucia.Petkovic@inl.gov RI Petkovic, Lucia/E-9092-2011; Rollins, Harry/B-6327-2017; Ginosar, Daniel/C-2357-2017 OI Petkovic, Lucia/0000-0002-0870-3355; Rollins, Harry/0000-0002-3926-7445; Ginosar, Daniel/0000-0002-8522-1659 NR 35 TC 27 Z9 27 U1 2 U2 19 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0926-860X J9 APPL CATAL A-GEN JI Appl. Catal. A-Gen. PD APR 1 PY 2008 VL 338 IS 1-2 BP 27 EP 36 DI 10.1016/j.apcata.2007.12.016 PG 10 WC Chemistry, Physical; Environmental Sciences SC Chemistry; Environmental Sciences & Ecology GA 287GM UT WOS:000254905200005 ER PT J AU Zhang, GX Samper, J Montenegro, L AF Zhang, Guoxiang Samper, Javier Montenegro, Luis TI Coupled thermo-hydro-bio-geochemical reactive transport model of CERBERUS heating and radiation experiment in Boom clay SO APPLIED GEOCHEMISTRY LA English DT Article ID MICROBIAL SULFATE REDUCTION; DESULFOVIBRIO-DESULFURICANS; MULTICOMPONENT TRANSPORT; CATION-EXCHANGE; WATER; FLOW; AQUIFER; SYSTEMS AB Final disposal of high-level radioactive waste in deep repositories in clay formations is being considered by several countries. Repository safety assessment requires the use of numerical models of groundwater flow, solute transport and chemical processes. These models are being developed from data and knowledge gained from in situ experiments such as the CERBERUS experiment carried out at the HADES facility excavated in the Boom clay formation at Mol (Belgium). This. long-term experiment is aimed at evaluating the effect of heating and radiation in Boom clay. The test was performed in a cased well drilled at 223 m depth and lasted from 1989 to 1994. A Co-60 source of 400 TBq and two heaters were emplaced inside the well. Dose rate, temperature, porewater pressure and pH/Eh were measured in situ during the experiment and gas and porewater samples were taken for chemical analyses. Here a coupled thermo-hydro-geochemical (THC) model of the CERBERUS experiment is presented which accounts simultaneously for heating, radiation, solute diffusion and a suite of geochemical reactions including: aqueous complexation, acid-base, redox, mineral dissolution/precipitation, cation exchange and gas dissolution/ex-solution. Computed results indicate that heating and radiation causes a slight oxidation, a decrease in pH, slight changes in porewater chemistry and pyrite dissolution near the well. THC model results follow the general evolution of chemical data, but cannot fit SO4 data. Model discrepancies are partly overcome when microbially-mediated Fe and SO4 reduction are taken into account in a coupled thermo-hydro-bio-geochemical (THBC) model. This THBC model captures the trends of geochemical data, improves the fit to dissolved SO4 and predicts pyrite precipitation, a process observed near the CERBERUS well. The ability of the THBC numerical model to reproduce the overall trends of geochemical data of the CERBERUS experiment provides confidence in such a model as a suitable tool for the long-term prediction of geochemistry in the near field of a HLW repository in clay. However, the small number of available chemical data throughout the experiment and the lack of DOC and microbial data allow only a partial validation of the THBC model. (C) 2008 Elsevier Ltd. All rights reserved. C1 [Samper, Javier; Montenegro, Luis] Univ A Coruna, Sch Civil Engn, La Coruna 15192, Spain. [Zhang, Guoxiang] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Samper, J (reprint author), Univ A Coruna, Sch Civil Engn, Campus Elvina S-N, La Coruna 15192, Spain. EM jsamper@udc.es RI Samper, Javier /F-7311-2016; Montenegro, Luis/G-1195-2016 OI Samper, Javier /0000-0002-9532-8433; NR 52 TC 13 Z9 14 U1 1 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0883-2927 J9 APPL GEOCHEM JI Appl. Geochem. PD APR PY 2008 VL 23 IS 4 BP 932 EP 949 DI 10.1016/j.apgeochem.2007.09.010 PG 18 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 298EX UT WOS:000255670300022 ER PT J AU Haynam, CA Sacks, RA Moses, EI Manes, K Haan, S Spaeth, ML AF Haynam, C. A. Sacks, R. A. Moses, E. I. Manes, K. Haan, S. Spaeth, M. L. TI Response to comment on "The National Ignition Facility laser performance status" SO APPLIED OPTICS LA English DT Editorial Material AB We appreciate Stephen Bodner's continuing interest in the performance of the NIF laser system. However, we find it necessary to disagree with the conclusions he reached in his comments [Appl. Opt. 47, XXX (2008)] on "National Ignition Facility Laser Performance Status" [Appl. Opt. 46, 3276 (2007)]. In fact, repeated and ongoing tests of the NIF beamlines have demonstrated that NIF can be expected not only to meet or exceed its requirements as established in the mid-1990s in the document National Ignition Facility Functional Requirements and Primary Criteria [Revision 1.3, Report NIF-LLNL-93-058 (1994)], but also to have the flexibility that provides for successfully meeting an ever expanding range of mission goals, including those of ignition. (C) 2008 Optical Society of America. C1 [Haynam, C. A.; Sacks, R. A.; Moses, E. I.; Manes, K.; Haan, S.; Spaeth, M. L.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Haynam, CA (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. EM haynam1@llnl.gov NR 6 TC 2 Z9 2 U1 2 U2 4 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X EI 2155-3165 J9 APPL OPTICS JI Appl. Optics PD APR 1 PY 2008 VL 47 IS 10 BP 1384 EP 1386 DI 10.1364/AO.47.001384 PG 3 WC Optics SC Optics GA 293OU UT WOS:000255345400018 ER PT J AU Bajt, S Chapman, HN Spiller, EA Alameda, JB Woods, BW Frank, M Bogan, MJ Barty, A Boutet, S Marchesini, S Hau-Riege, SP Hajdu, J Shapiro, D AF Bajt, Sasa Chapman, Henry N. Spiller, Eberhard A. Alameda, Jennifer B. Woods, Bruce W. Frank, Matthias Bogan, Michael J. Barty, Anton Boutet, Sebastien Marchesini, Stefano Hau-Riege, Stefan P. Hajdu, Janos Shapiro, David TI Camera for coherent diffractive imaging and holography with a soft-x-ray free-electron laser SO APPLIED OPTICS LA English DT Article ID EXTREME-ULTRAVIOLET; HIGH-RESOLUTION; MULTILAYER; MICROSCOPY; REGION; CRYSTALLOGRAPHY; SPECIMENS; MIRRORS; NM AB We describe a camera to record coherent scattering patterns with a soft-x-ray free-electron laser (FEL). The camera consists of a laterally graded multilayer mirror, which reflects the diffraction pattern onto a CCD detector. The mirror acts as a bandpass filter for both the wavelength and the angle, which isolates the desired scattering pattern from nonsample scattering or incoherent emission from the sample. The mirror also solves the particular problem of the extreme intensity of the FEL pulses, which are focused to greater than 1014 W/cm(2). The strong undiffracted pulse passes through a hole in the mirror and propagates onto a beam dump at a distance behind the instrument rather than interacting with a beam stop placed near the CCD. The camera concept is extendable for the full range of the fundamental wavelength of the free electron laser in Hamburg (FLASH) FEL (i.e., between 6 and 60 nm) and into the water window. We have fabricated and tested various multilayer mirrors for wavelengths of 32, 16, 13.5, and 4.5 nm. At the shorter wavelengths mirror roughness must be minimized to reduce scattering from the mirror. We have recorded over 30,000 diffraction patterns at the FLASH FEL with no observable mirror damage or degradation of performance. (c) 2008 Optical Society of America. C1 [Spiller, Eberhard A.] Spiller Xray Opt, Livermore, CA 94550 USA. [Boutet, Sebastien; Hajdu, Janos] Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA. [Boutet, Sebastien; Hajdu, Janos] Uppsala Univ, Lab Mol Biophys, Dept Cell & Mol Biol, SE-75124 Uppsala, Sweden. [Marchesini, Stefano; Shapiro, David] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Bajt, Sasa; Chapman, Henry N.; Alameda, Jennifer B.; Woods, Bruce W.; Frank, Matthias; Bogan, Michael J.; Barty, Anton; Hau-Riege, Stefan P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Bajt, S (reprint author), DESY, HASYLAB, Deutsch Elektronen Synchrotron, Notkestr 85, D-22607 Hamburg, Germany. EM sasa.bajt@desy.de RI Marchesini, Stefano/A-6795-2009; Chapman, Henry/G-2153-2010; Bajt, Sasa/G-2228-2010; Bogan, Mike/I-6962-2012; Barty, Anton/K-5137-2014; Frank, Matthias/O-9055-2014 OI Chapman, Henry/0000-0002-4655-1743; Bogan, Mike/0000-0001-9318-3333; Barty, Anton/0000-0003-4751-2727; NR 36 TC 29 Z9 29 U1 1 U2 7 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1559-128X EI 2155-3165 J9 APPL OPTICS JI Appl. Optics PD APR 1 PY 2008 VL 47 IS 10 BP 1673 EP 1683 DI 10.1364/AO.47.001673 PG 11 WC Optics SC Optics GA 293OU UT WOS:000255345400058 PM 18382600 ER PT J AU Allain, JP Nieto, M Hassanein, A AF Allain, J. P. Nieto, M. Hassanein, A. TI Specular reflectivity of 13.5-nm light from Sn islands deposited on grazing incidence mirror surfaces SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID LITHOGRAPHY; PLASMA AB We have investigated the effect of exposure to thermal Sn atoms on the 13.5-nm specular reflectivity of single-layer Pd mirror surfaces. The mirror surfaces were characterized using low-energy ion scattering spectroscopy (LEISS) and the relative 13.5-nm specular reflectivity measured in situ during exposure to doses up to several 10(16) cm(-2) Sn particles. The relative reflectivity loss at 13.5 nm is found to deviate from the theoretical Fresnel reflectivity. Losses are < 20% for fluence levels > 10(16) cm(-2). The difference is due to deposited Sn nucleating at early stages of exposure and coalescing to nanoscale islands. Sn atomic surface fraction from LEISS reaches 50 a/o (atomic percent) at a fluence of 0.25x10(16) cm(-2) and ultimately levels off at 93-95% for fluences greater than 2.0x10(16) cm(-2). The specular reflectivity approaches the Fresnel theoretical value of 38.7% for thermal Sn deposition at large doses and equilibrates to 36.4%. The difference is mainly due to surface roughness of the deposited Sn film. C1 [Allain, J. P.; Nieto, M.; Hassanein, A.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Allain, JP (reprint author), Purdue Univ, W Lafayette, IN 47907 USA. EM allain@purdue.edu OI Allain, Jean Paul/0000-0003-1348-262X; Nieto-Perez, Martin/0000-0001-6600-9786 NR 11 TC 2 Z9 2 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD APR PY 2008 VL 91 IS 1 BP 13 EP 16 DI 10.1007/s00339-008-4409-2 PG 4 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 262CZ UT WOS:000253127900003 ER PT J AU Elias, DA Tollaksen, SL Kennedy, DW Mottaz, HM Giometti, CS McLean, JS Hill, EA Pinchuk, GE Lipton, MS Fredrickson, JK Gorby, YA AF Elias, Dwayne A. Tollaksen, Sandra L. Kennedy, David W. Mottaz, Heather M. Giometti, Carol S. McLean, Jeffrey S. Hill, Eric A. Pinchuk, Grigoriy E. Lipton, Mary S. Fredrickson, James K. Gorby, Yuri A. TI The influence of cultivation methods on Shewanella oneidensis physiology and proteome expression SO ARCHIVES OF MICROBIOLOGY LA English DT Article DE controlled cultivation; systems biology; proteomics; Shewanella ID ACCURATE MASS TAGS; ESCHERICHIA-COLI; SACCHAROMYCES-CEREVISIAE; DESULFOVIBRIO-VULGARIS; GEL-ELECTROPHORESIS; CHEMOSTAT CULTURES; PUTREFACIENS MR-1; OUTER-MEMBRANE; 2-DIMENSIONAL ELECTROPHORESIS; TRANSCRIPTIONAL REGULATION AB High-throughput analyses that are central to microbial systems biology and ecophysiology research benefit from highly homogeneous and physiologically well-defined cell cultures. While attention has focused on the technical variation associated with high-throughput technologies, biological variation introduced as a function of cell cultivation methods has been largely overlooked. This study evaluated the impact of cultivation methods, controlled batch or continuous culture in bioreactors versus shake flasks, on the reproducibility of global proteome measurements in Shewanella oneidensis MR-1. Variability in dissolved oxygen concentration and consumption rate, metabolite profiles, and proteome was greater in shake flask than controlled batch or chemostat cultures. Proteins indicative of suboxic and anaerobic growth (e.g., fumarate reductase and decaheme c-type cytochromes) were more abundant in cells from shake flasks compared to bioreactor cultures, a finding consistent with data demonstrating that "aerobic" flask cultures were O-2 deficient due to poor mass transfer kinetics. The work described herein establishes the necessity of controlled cultivation for ensuring highly reproducible and homogenous microbial cultures. By decreasing cell to cell variability, higher quality samples will allow for the interpretive accuracy necessary for drawing conclusions relevant to microbial systems biology research. C1 [Gorby, Yuri A.] J Craig Venter Inst, La Jolla, CA 92093 USA. [Elias, Dwayne A.] Univ Missouri, Dept Biochem, Columbia, MO 65211 USA. [Tollaksen, Sandra L.; Giometti, Carol S.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Kennedy, David W.; Mottaz, Heather M.; McLean, Jeffrey S.; Hill, Eric A.; Pinchuk, Grigoriy E.; Lipton, Mary S.; Fredrickson, James K.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99353 USA. RP Gorby, YA (reprint author), J Craig Venter Inst, 11149 N Torrey Pines Rd,Suite 220, La Jolla, CA 92093 USA. EM ygorby@venterinstitute.org RI Elias, Dwayne/B-5190-2011; McLean, Jeffrey/A-8014-2012; OI Elias, Dwayne/0000-0002-4469-6391; McLean, Jeffrey/0000-0001-9934-5137; Kennedy, David/0000-0003-0763-501X NR 58 TC 16 Z9 16 U1 3 U2 17 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 0302-8933 J9 ARCH MICROBIOL JI Arch. Microbiol. PD APR PY 2008 VL 189 IS 4 BP 313 EP 324 DI 10.1007/s00203-007-0321-y PG 12 WC Microbiology SC Microbiology GA 277XG UT WOS:000254247400005 PM 18030449 ER PT J AU Joeres, S Jones, SM Chen, DC Silva, D Olivier, S Fawzi, A Castellarin, A Sadda, SR AF Joeres, Sandra Jones, Steven M. Chen, Diana C. Silva, Dennis Olivier, Scot Fawzi, Amani Castellarin, Alessandro Sadda, Srinivas R. TI Retinal imaging with adaptive optics scanning laser ophthalmoscopy in unexplained central ring scotoma SO ARCHIVES OF OPHTHALMOLOGY LA English DT Article; Proceedings Paper CT Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology CY MAY 06-10, 2007 CL Ft Lauderdale, FL SP Assoc Res Vis & Ophthalmol ID LIVING HUMAN EYE; ACUTE MACULAR NEURORETINOPATHY; DEFORMABLE MIRRORS; RETINOPATHY; DYSTROPHY; CANCER AB A daptive optics scanning laser oplithalmoscopy allows for noninvasive, in vivo visualization of retinal abnormalities at a cellular level. We herein describe for the first time, to our knowledge, the utility of high-resolution retinal imaging in studying the photoreceptor mosaic in an otherwise unexplained visual disturbance. Imaging of the cone mosaic was performed in a 64-year-old man with a unilateral ringlike paracentral distortion that could not be explained using common clinical imaging instruments. Adaptive optics scanning laser oplithalmoscopy findings revealed a parafoveal circular abnormality of the cone mosaic approximately 3 degrees in diameter that corresponded to the ring of visual disturbance. Visualization of the cone mosaic with adaptive optics scanning laser oplithalmoscopy can reveal photoreceptor damage that may not be detectable with standard imaging devices. Optical axial sectioning of the retina may help in identifying and localizing abnormalities within the retinal layers. C1 [Joeres, Sandra; Fawzi, Amani; Sadda, Srinivas R.] Univ So Calif, Keck Sch Med, Doheny Eye Inst, Doheny Retina Inst, Los Angeles, CA 90033 USA. [Jones, Steven M.; Chen, Diana C.; Silva, Dennis; Olivier, Scot] Lawrence Livermore Natl Lab, Livermore, CA USA. [Castellarin, Alessandro] Calif Retina Consultants, Santa Barbara, CA USA. RP Joeres, S (reprint author), Univ So Calif, Keck Sch Med, Doheny Eye Inst, Doheny Retina Inst, Los Angeles, CA 90033 USA. OI fawzi, amani/0000-0002-9568-3558 FU NEI NIH HHS [R01 EY014375, EY03040] NR 32 TC 8 Z9 8 U1 0 U2 0 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610-0946 USA SN 0003-9950 J9 ARCH OPHTHALMOL-CHIC JI Arch. Ophthalmol. PD APR PY 2008 VL 126 IS 4 BP 543 EP 547 DI 10.1001/archophthalmol.2007.33 PG 5 WC Ophthalmology SC Ophthalmology GA 285SQ UT WOS:000254796900016 PM 18413527 ER PT J AU Jarnagin, RE McBride, M Trueman, C Liesen, RJ AF Jarnagin, Ronald E. McBride, Merle Trueman, Cedric Liesen, Richard J. TI Demand or no demand: Electrical rates for Standard 90.1-2010 SO ASHRAE JOURNAL LA English DT Article C1 [Jarnagin, Ronald E.] Pacific NW Natl Lab, Richland, WA 99352 USA. [McBride, Merle; Liesen, Richard J.] Owens Corning Ctr Sci & Technol, Granville, OH USA. [Trueman, Cedric] Trueman Engn Serv, Victoria, BC, Canada. RP Jarnagin, RE (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. NR 3 TC 0 Z9 0 U1 0 U2 1 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD APR PY 2008 VL 50 IS 4 BP 14 EP + PG 5 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 288JW UT WOS:000254983700008 ER PT J AU Moran, M Berman, M AF Moran, Mike Berman, Marc TI 6 steps to successful facility energy management SO ASHRAE JOURNAL LA English DT Article AB Buildings use about 40% of the energy consumed in the United States and 72% of the nation's electricity. Buildings also account for 80% of all electric expenditures.' As utility bills skyrocket, controlling energy costs is paramount for maintaining and operating facilities. Equally important is demonstrating return on investment for new energy-saving equipment and approaches, while meeting increasing requirements for environmentally sound energy use. C1 [Moran, Mike; Berman, Marc] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Moran, M (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. NR 2 TC 1 Z9 1 U1 0 U2 1 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD APR PY 2008 VL 50 IS 4 BP 32 EP + PG 6 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 288JW UT WOS:000254983700010 ER PT J AU Mathew, P Greenberg, S Sartor, D Rumsey, P Weale, J AF Mathew, Paul Greenberg, Steve Sartor, Dale Rumsey, Peter Weale, John TI Laboratory performance - Metrics for energy efficiency SO ASHRAE JOURNAL LA English DT Article AB Laboratory owners have explicit goals for energy efficiency in their facilities. For example, the Energy Policy Act of 2005 (EPACT 2005) requires all new federal buildings to exceed ANSI/ASHRAE/IESNA Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings, by at least 30%. A new laboratory is more likely to meet energy-efficiency goals if quantitative metrics and targets are specified in programming documents and then tracked during the course of the delivery process. If not, any additional capital costs or design time associated with attaining higher efficiencies can be difficult to justify. C1 [Mathew, Paul; Greenberg, Steve; Sartor, Dale] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Rumsey, Peter; Weale, John] Rumsey Engineers, Oakland, CA USA. RP Mathew, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. NR 14 TC 0 Z9 0 U1 0 U2 6 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD APR PY 2008 VL 50 IS 4 BP 40 EP + PG 7 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 288JW UT WOS:000254983700011 ER PT J AU Zogg, R Roth, K Brodrick, J AF Zogg, Robert Roth, Kurt Brodrick, James TI Community-scale heating/cooling/power systems SO ASHRAE JOURNAL LA English DT Editorial Material C1 [Zogg, Robert; Roth, Kurt] TIAX LLC, Cambridge, MA USA. [Brodrick, James] US DOE, Bldg Technol Program, Washington, DC USA. RP Zogg, R (reprint author), TIAX LLC, Cambridge, MA USA. NR 6 TC 1 Z9 1 U1 0 U2 1 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD APR PY 2008 VL 50 IS 4 BP 62 EP 63 PG 2 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 288JW UT WOS:000254983700015 ER PT J AU Griffith, JD Willcox, S Powers, DW Nelson, R Baxter, BK AF Griffith, Jack D. Willcox, Smaranda Powers, Dennis W. Nelson, Roger Baxter, Bonnie K. TI Discovery of abundant cellulose microfibers encased in 250 Ma Permian halite: A macromolecular target in the search for life on other planets SO ASTROBIOLOGY LA English DT Article DE cellulose; permian halite; electron microscopy ID SOUTHEASTERN NEW-MEXICO; FLUID INCLUSIONS; BACTERIAL-SPORES; HALOTOLERANT BACTERIUM; IONIZING-RADIATION; SALADO FORMATION; MICHIGAN BASIN; SALT CRYSTALS; AGE; EVAPORITES AB In this study, we utilized transmission electron microscopy to examine the contents of fluid inclusions in halite ( NaCl) and solid halite crystals collected 650 m below the surface from the Late Permian Salado Formation in southeastern New Mexico ( USA). The halite has been isolated from contaminating groundwater since deposition approximately 250 Ma ago. We show that abundant cellulose microfibers are present in the halite and appear remarkably intact. The cellulose is in the form of 5 nm microfibers as well as composite ropes and mats, and was identified by resistance to 0.5 N NaOH treatment and susceptibility to cellulase enzyme treatment. These cellulose microfibers represent the oldest native biological macromolecules to have been directly isolated, examined biochemically, and visualized ( without growth or replication) to date. This discovery points to cellulose as an ideal macromolecular target in the search for life on other planets in our Solar System. C1 [Griffith, Jack D.; Willcox, Smaranda] Univ N Carolina, Lineberger Comprehens Canc Ctr, Chapel Hill, NC 27599 USA. [Powers, Dennis W.] Univ Mississippi, Dept Geol & Geol Engn, University, MS 38677 USA. [Nelson, Roger] US DOE, Carlsbad, NM USA. [Baxter, Bonnie K.] Westminster Coll, Dept Biol, Salt Lake City, UT USA. RP Griffith, JD (reprint author), Univ N Carolina, Lineberger Comprehens Canc Ctr, Chapel Hill, NC 27599 USA. EM jdg@med.unc.edu FU NIEHS NIH HHS [ES013773]; NIGMS NIH HHS [GM31819] NR 46 TC 16 Z9 17 U1 2 U2 7 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1531-1074 J9 ASTROBIOLOGY JI Astrobiology PD APR PY 2008 VL 8 IS 2 BP 215 EP 228 DI 10.1089/ast.2007.0196 PG 14 WC Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary SC Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology GA 293QN UT WOS:000255349900002 PM 18366344 ER PT J AU Kotler, JM Hinman, NW Yan, B Stoner, DL Scott, JR AF Kotler, J. Michelle Hinman, Nancy W. Yan, Beizhan Stoner, Daphne L. Scott, Jill R. TI Glycine identification in natural jarosites using laser desorption Fourier transform mass spectrometry: Implications for the search for life on Mars SO ASTROBIOLOGY LA English DT Article DE jarosite; Mars; mass spectrometry; organic matter; biosignatures ID MERIDIANI-PLANUM; MINERALS; DESORPTION/IONIZATION; PRECIPITATION; MOLECULES; OXIDATION; BEHAVIOR; ANALOGS; SULFATE; ROCKS AB The jarosite group minerals have received increasing attention since the discovery of jarosite on the martian surface by the Mars Exploration Rover Opportunity. Given that jarosite can incorporate foreign ions within its structure, we have investigated the use of jarosite as an indicator of aqueous and biological processes on Earth and Mars. The use of laser desorption Fourier transform mass spectrometry has revealed the presence of organic matter in several jarosite samples from various locations worldwide. One of the ions from the natural jarosites has been attributed to glycine because it was systematically observed in combinations of glycine with synthetic ammonium and potassium jarosites, Na2SO4 and K2SO4. The ability to observe these organic signatures in jarosite samples with an in situ instrumental technique, such as the one employed in this study, furthers the goals of planetary geologists to determine whether signs of life ( e. g., the presence of biomolecules or biomolecule precursors) can be detected in the rock record of terrestrial and extraterrestrial samples. C1 [Kotler, J. Michelle; Hinman, Nancy W.] Univ Montana, Dept Geosci, Missoula, MT 59812 USA. [Yan, Beizhan; Stoner, Daphne L.] Univ Idaho, Dept Chem, Idaho Falls, ID USA. [Scott, Jill R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Hinman, NW (reprint author), Univ Montana, Dept Geosci, Missoula, MT 59812 USA. EM nancy.hinman@umontana.edu RI Scott, Jill/G-7275-2012 NR 41 TC 18 Z9 18 U1 2 U2 18 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1531-1074 J9 ASTROBIOLOGY JI Astrobiology PD APR PY 2008 VL 8 IS 2 BP 253 EP 266 DI 10.1089/ast.2006.0102 PG 14 WC Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary SC Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology GA 293QN UT WOS:000255349900005 PM 18393691 ER PT J AU Melbourne, J Ammons, M Wright, SA Metevier, A Steinbring, E Max, C Koo, DC Larkin, JE Barczys, M AF Melbourne, J. Ammons, M. Wright, S. A. Metevier, A. Steinbring, E. Max, C. Koo, D. C. Larkin, J. E. Barczys, M. TI Triggered or self-regulated star formation within intermediate redshift luminous infrared galaxies. I. Morphologies and spectral energy distributions SO ASTRONOMICAL JOURNAL LA English DT Article DE galaxies : spiral; galaxies : starburst; galaxies : stellar content; infrared : galaxies; instrumentation : adaptive optics ID DEEP-FIELD-SOUTH; LASER ADAPTIVE OPTICS; COMPACT GALAXIES; LOCAL UNIVERSE; GOODS-N; EVOLUTION; SPECTROSCOPY; RESOLUTION; DENSITY; HISTORY AB As part of the Center for Adaptive Optics (AO) Treasury Survey (CATS) we imaged a set of 15 intermediate redshift (z similar to 0.8) luminous infrared (IR) galaxies (LIRGs) with the Keck Laser Guide Star (LGS) AO facility. These galaxies were selected from the Great Observatories Origins Deep Survey (GOODS) southern field, allowing us to combine the high spatial resolution Hubble Space Telescope optical (B, V, i, and z-bands) images with our near-infrared (K'-band) images to study the LIRG morphologies and spatially resolved spectral energy distributions (SEDs). Two thirds of the LIRGs are disk galaxies, with only one third showing some evidence for interactions, minor, or major mergers. In contrast with local LIRG disks (which are primarily barred systems), only 10% of the LIRG disks in our sample contain a prominent bar. While the optical bands tend to show a significant point-like substructure, indicating distributed star formation, the AO K-band images tend to be smooth. They lack point-like structures to a K similar to 23.5 limit. This places an upper bound on the number of red super giants per blue knot at less than 4000. The SEDs of the LIRGs are consistent with distributed dusty star formation, as exhibited by optical to IR colors redder than allowed by old stellar populations alone. This effect is most pronounced in the galaxy cores, possibly indicating central star formation. We also observed a set of 11 intermediate redshift comparison galaxies, selected to be non-ellipticals with apparent K-band magnitudes comparable to the LIRGs. The "normal" (non-LIRG) systems tended to have lower optical luminosity, lower stellar mass, and more irregular morphology than the LIRGs. Half of the "normal" galaxies have SEDs consistent with intermediate aged stellar populations and minimal dust. The other half show evidence for some dusty star formation, usually concentrated in their cores. Our work suggests that the LIRG disk galaxies are similar to large disk systems today, undergoing self-regulated star formation, only at 10-20 times higher rates. C1 [Melbourne, J.] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA. [Ammons, M.; Metevier, A.; Max, C.; Koo, D. C.] Univ Calif Santa Cruz, Univ Calif Observ, Lick Observ, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA. [Wright, S. A.; Larkin, J. E.; Barczys, M.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Steinbring, E.] Natl Res Council Canada, Herzberg Inst Astrophys, Victoria, BC V9E 2E7, Canada. [Max, C.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. RP Melbourne, J (reprint author), CALTECH, Div Phys Math & Astron, Mail Stop 320-47, Pasadena, CA 91125 USA. EM jmel@caltech.edu; ammons@ucolick.org; anne@ucolick.org; max@ucolick.org; koo@ucolick.org; larkin@astro.ucla.edu; barczysm@astro.ucla.edu OI Steinbring, Eric/0000-0003-1259-0813; Max, Claire/0000-0003-0682-5436; Wright, Shelley/0000-0003-1034-8054 NR 41 TC 29 Z9 29 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0004-6256 J9 ASTRON J JI Astron. J. PD APR PY 2008 VL 135 IS 4 BP 1207 EP 1224 DI 10.1088/0004-6256/135/4/1207 PG 18 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 283RX UT WOS:000254655300008 ER PT J AU Graham, ML Pritchet, CJ Sullivan, M Gwyn, SDJ Neill, JD Hsiao, EY Astier, P Balam, D Balland, C Basa, S Carlberg, RG Conley, A Fouchez, D Guy, J Hardin, D Hook, IM Howell, DA Pain, R Perrett, K Regnault, N Baumont, S Le Du, J Lidman, C Perlmutter, S Ripoche, P Suzuki, N Walker, ES Zhang, T AF Graham, M. L. Pritchet, C. J. Sullivan, M. Gwyn, S. D. J. Neill, J. D. Hsiao, E. Y. Astier, P. Balam, D. Balland, C. Basa, S. Carlberg, R. G. Conley, A. Fouchez, D. Guy, J. Hardin, D. Hook, I. M. Howell, D. A. Pain, R. Perrett, K. Regnault, N. Baumont, S. Le Du, J. Lidman, C. Perlmutter, S. Ripoche, P. Suzuki, N. Walker, E. S. Zhang, T. TI Type ia supernovae rates and galaxy clustering from the CFHT supernova legacy survey SO ASTRONOMICAL JOURNAL LA English DT Article DE clusters : general; supernovae : general ID STAR-FORMATION; MODELS; COSMOLOGY; SELECTION; COLORS; MASS AB The Canada-France-Hawaii Telescope Supernova Legacy Survey (CFHT SNLS) has created a large homogeneous database of intermediate redshift (0.2 < z < 1.0) type Ia supernovae (SNe Ia). The SNLS team has shown that correlations exist between SN Ia rates, properties, and host galaxy star-formation rates (SFRs). The SNLS SN Ia database has now been combined with a photometric redshift galaxy catalog and an optical galaxy cluster catalog to investigate the possible influence of galaxy clustering on the SNIa rate, over and above the expected effect due to the dependence of SFR on clustering through the morphology-density relation. We identify three cluster SNe Ia, plus three additional possible cluster SNe Ia, and find the SN Ia rate per unit mass in clusters at intermediate redshifts is consistent with the rate per unit mass in field early-type galaxies and the SN Ia cluster rate from low-redshift cluster targeted surveys. We also find the number of SNe Ia in cluster environments to be within a factor of 2 of expectations from the two-component SN Ia rate model. C1 [Graham, M. L.; Pritchet, C. J.; Gwyn, S. D. J.; Neill, J. D.; Hsiao, E. Y.; Balam, D.] Univ Victoria, Dept Phys & Astron, Victoria, BC V8T 1M8, Canada. [Sullivan, M.; Carlberg, R. G.; Conley, A.; Howell, D. A.; Perrett, K.] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H8, Canada. [Gwyn, S. D. J.] Canadian Astron Data Ctr, NRC Herzberh Inst Astrophys, Victoria, BC V9E 2E7, Canada. [Neill, J. D.] CALTECH, Pasadena, CA 91125 USA. [Astier, P.; Balland, C.; Guy, J.; Hardin, D.; Pain, R.; Regnault, N.; Baumont, S.] CNRS, LPNHE, IN2P3, F-75252 Paris 05, France. [Astier, P.; Balland, C.; Guy, J.; Hardin, D.; Pain, R.; Regnault, N.; Baumont, S.] Univ Paris 06, F-75252 Paris 05, France. [Astier, P.; Balland, C.; Guy, J.; Hardin, D.; Pain, R.; Regnault, N.; Baumont, S.] Univ Paris 07, F-75252 Paris 05, France. [Basa, S.; Zhang, T.] CNRS, LAM, F-13376 Marseille 12, France. [Fouchez, D.; Le Du, J.; Ripoche, P.] CNRS, IN2P3, CPPM, F-13288 Marseille 9, France. [Fouchez, D.; Le Du, J.; Ripoche, P.] Univ Aix Marseille 2, F-13288 Marseille 9, France. [Hook, I. M.; Walker, E. S.] Univ Oxford Astrophys, Oxford OX1 3RH, England. [Lidman, C.] ESO, Santiago 19, Chile. [Perlmutter, S.; Suzuki, N.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Graham, ML (reprint author), Univ Victoria, Dept Phys & Astron, POB 3055 STN CSC, Victoria, BC V8T 1M8, Canada. RI Carlberg, Raymond/I-6947-2012; Perlmutter, Saul/I-3505-2015; OI Carlberg, Raymond/0000-0002-7667-0081; Perlmutter, Saul/0000-0002-4436-4661; Sullivan, Mark/0000-0001-9053-4820 NR 32 TC 25 Z9 25 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0004-6256 J9 ASTRON J JI Astron. J. PD APR PY 2008 VL 135 IS 4 BP 1343 EP 1349 DI 10.1088/0004-6256/135/4/1343 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 283RX UT WOS:000254655300020 ER PT J AU Abraham, J Abreu, P Aglietta, M Aguirre, C Allard, D Allekotte, I Allen, J Allison, P Alvarez-Muniz, J Ambrosio, M Anchordoqui, L Andringa, S Anzalone, A Aramo, C Argiro, S Arisaka, K Armengaud, E Arneodo, F Arqueros, F Asch, T Asorey, H Assis, P Atulugama, BS Aublin, J Ave, M Avila, G Backer, T Badagnani, D Barbosa, AF Barnhill, D Barroso, SLC Bauleo, P Beatty, JJ Beau, T Becker, BR Becker, KH Bellido, JA BenZvi, S Berat, C Bergmann, T Bernardini, P Bertou, X Biermann, PL Billoir, P Blanch-Bigas, O Blanco, F Blasi, P Bleve, C Blumer, H Bohacova, M Bonifazi, C Bonino, R Brack, J Brogueira, P Brown, WC Buchholz, P Bueno, A Burton, RE Busca, NG Caballero-Mora, KS Cai, B Camin, DV Caramete, L Caruso, R Carvalho, W Castellina, A Catalano, O Cataldi, G Cazon, L Cester, R Chauvin, J Chiavassa, A Chinellato, JA Chou, A Chye, J Clay, RW Colombo, E Conceicao, R Connolly, B Contreras, F Coppens, J Cordier, A Cotti, U Coutu, S Covault, CE Creusot, A Criss, A Cronin, J Curutiu, A Dagoret-Campagne, S Daumiller, K Dawson, BR de Almeida, RM De Donato, C Bg, SJDJ De La Vega, G de Mello, WJM Neto, JRTD De Mitri, I de Souza, V del Peral, L Deligny, O Della Selva, A Delle Fratte, C Dembinski, H Di Giulio, C Diaz, JC Diep, PN Dobrigkeit, C D'Olivo, JC Dong, PN Dornic, D Dorofeev, A dos Anjos, JC Dova, MT D'Urso, D Dutan, I DuVernois, MA Engel, R Epele, L Erdmann, M Escobar, CO Etchegoyen, A Luis, PFS Falcke, H Farrar, G Fauth, AC Fazzini, N Ferrer, F Ferry, S Fick, B Filevich, A Filipcic, A Fleck, I Fracchiolla, CE Fulgione, W Garcia, B Gaimez, DG Garcia-Pinto, D Garrido, X Geenen, H Gelmini, G Gemmeke, H Ghia, PL Giller, M Glass, H Gold, MS Golup, G Albarracin, FG Berisso, MG Herrero, RG Goncalves, P do Amaral, MG Gonzalez, D Gonzalezc, JG Gonzalez, M Gora, D Gorgi, A Gouffon, P Grassi, V Grillo, AF Grunfeld, C Guardincerri, Y Guarino, F Guedes, GP Gutierrez, J Hague, JD Hamilton, JC Hansen, P Harari, D Harmsma, S Harton, JL Haungs, A Hauschildt, T Healy, MD Hebbeker, T Hebrero, G Heck, D Hojvat, C Holmes, VC Homola, P Horandel, J Horneffer, A Horvat, M Hrabovsky, M Huege, T Hussain, M Larlori, M Insolia, A Ionita, F Italiano, A Kaducak, M Kampert, KH Karova, T Kegl, B Keilhauer, B Kemp, E Kieckhafer, RM Klages, HO Kleifges, M Kleinfeller, J Knapik, R Knapp, J Koanga, VH Krieger, A Kromer, O Kuempel, D Kunka, N Kusenko, A La Rosa, G Lachaud, C Lago, BL Lebrun, D LeBrun, P Lee, J de Oliveira, MAL Lopez, R Letessier-Selvon, A Leuthold, M Lhenry-Yvon, I Aguera, AL Bahilo, JL Garcia, RL Maccarone, MC Macolino, C Maldera, S Mancarella, G Mancenido, ME Mandatat, D Mantsch, P Mariazzi, AG Maris, IC Falcon, HRM Martello, D Martinez, J Bravo, OM Mathes, HJ Matthews, J Matthews, JAJ Matthiae, G Maurizio, D Mazur, PO McCauley, T McEwen, M McNeil, RR Medina, MC Medina-Tanco, G Meli, A Melo, D Menichetti, E Menschikov, A Meurer, C Meyhandan, R Micheletti, MI Miele, G Miller, W Mollerach, S Monasor, M Ragaigne, DM Montanet, F Morales, B Morello, C Moreno, JC Morris, C Mostafa, M Muller, MA Mussa, R Navarra, G Navarro, JL Navas, S Necesal, P Nellen, L Newman-Holmes, C Newton, D Nhung, PT Nierstenhoefer, N Nitz, D Nosek, D Nozka, L Oehlschlager, J Ohnuki, T Olinto, A Olmos-Gilbaja, VM Ortiz, M Ortolani, F Ostapchenko, S Otero, L Pacheco, N Selmi-Dei, DP Palatka, M Pallotta, J Parente, G Parizot, E Parlati, S Pastor, S Patel, M Paul, T Pavlidou, V Payet, K Pech, M Pekala, J Pelayo, R Pepe, IM Perrone, L Petrera, S Petrinca, P Petrov, Y Pichel, A Piegaia, R Pierog, T Pimenta, M Pinto, T Pirronello, V Pisanti, O Platino, M Pochon, J Privitera, P Prouza, M Quel, EJ Rautenberg, J Redondo, A Reucroft, S Revenu, B Rezende, FAS Ridky, J Riggi, S Risse, M Riviere, C Rizi, V Roberts, M Robledo, C Rodriguez, G Martino, JR Rojo, JR Rodriguez-Cabo, I Rodriguez-Frias, MD Ros, G Rosado, J Roth, M Rouille-d'Orfeuil, B Roulet, E Roverok, AC Salamida, F Salazar, H Salina, G Sanchez, F Santander, M Santo, CE Santos, EM Sarazin, F Sarkar, S Sato, R Scherini, V Schieler, H Schmidt, A Schmidt, F Schmidt, T Scholten, O Schovanek, P Schussler, F Sciutto, SJ Scuderi, M Segreto, A Semikoz, D Settimo, M Shellard, RC Sidelnik, I Siffert, BB Sigl, G De Grande, NS Smialkowski, A Smida, R Smith, AGK Smith, BE Snow, GR Sokolsky, P Sommers, P Sorokin, J Spinka, H Squartini, R Strazzeri, E Stutz, A Suarez, F Suomijarvi, T Supanitsky, AD Sutherland, MS Swain, J Szadkowski, Z Takahashi, J Tamashiro, A Tamburro, A Tascau, O Tcaciuc, R Thao, NT Thomas, D Ticona, R Tiffenberg, J Timmermans, C Tkaczyk, W Peixoto, CJT Tome, B Tonachini, A Torres, I Travnicek, P Tripathi, A Tristram, G Tscherniakhovski, D Tueros, M Ulrich, R Unger, M Urban, M Galicia, JFV Valino, I Valore, L van den Berg, AM van Elewyck, V Vazquez, RA Veberic, D Veiga, A Velarde, A Venters, T Verzi, V Videla, M Villasenor, L Vorobiov, S Voyvodic, L Wahlberg, H Wainberg, O Warner, D Watson, AA Westerhoff, S Wieczorek, G Wiencke, L Wilczynska, B Wilczynski, H Wileman, C Winnick, MG Wu, H Wundheiler, B Yamamoto, T Younk, P Zas, E Zavrtanik, D Zavrtanik, M Zech, A Zepeda, A Ziolkowski, M AF Abraham, J. Abreu, P. Aglietta, M. Aguirre, C. Allard, D. Allekotte, I. Allen, J. Allison, P. Alvarez-Muniz, J. Ambrosio, M. Anchordoqui, L. Andringa, S. Anzalone, A. Aramo, C. Argiro, S. Arisaka, K. Armengaud, E. Arneodo, F. Arqueros, F. Asch, T. Asorey, H. Assis, P. Atulugama, B. S. Aublin, J. Ave, M. Avila, G. Baecker, T. Badagnani, D. Barbosa, A. F. Barnhill, D. Barroso, S. L. C. Bauleo, P. Beatty, J. J. Beau, T. Becker, B. R. Becker, K. H. Bellido, J. A. BenZvi, S. Berat, C. Bergmann, T. Bernardini, P. Bertou, X. Biermann, P. L. Billoir, P. Blanch-Bigas, O. Blanco, F. Blasi, P. Bleve, C. Bluemer, H. Bohacova, M. Bonifazi, C. Bonino, R. Brack, J. Brogueira, P. Brown, W. C. Buchholz, P. Bueno, A. Burton, R. E. Busca, N. G. Caballero-Mora, K. S. Cai, B. Camin, D. V. Caramete, L. Caruso, R. Carvalho, W. Castellina, A. Catalano, O. Cataldi, G. Cazon, L. Cester, R. Chauvin, J. Chiavassa, A. Chinellato, J. A. Chou, A. Chye, J. Clay, R. W. Colombo, E. Conceicao, R. Connolly, B. Contreras, F. Coppens, J. Cordier, A. Cotti, U. Coutu, S. Covault, C. E. Creusot, A. Criss, A. Cronin, J. Curutiu, A. Dagoret-Campagne, S. Daumiller, K. Dawson, B. R. de Almeida, R. M. De Donato, C. Bg, S. J. de Jong De La Vega, G. de Mello, W. J. M., Jr. de Mello Neto, J. R. T. De Mitri, I. de Souza, V. del Peral, L. Deligny, O. Della Selva, A. Delle Fratte, C. Dembinski, H. Di Giulio, C. Diaz, J. C. Diep, P. N. Dobrigkeit, C. D'Olivo, J. C. Dong, P. N. Dornic, D. Dorofeev, A. dos Anjos, J. C. Dova, M. T. D'Urso, D. Dutan, I. DuVernois, M. A. Engel, R. Epele, L. Erdmann, M. Escobar, C. O. Etchegoyen, A. Luis, P. Facal San Falcke, H. Farrar, G. Fauth, A. C. Fazzini, N. Ferrer, F. Ferry, S. Fick, B. Filevich, A. Filipcic, A. Fleck, I. Fracchiolla, C. E. Fulgione, W. Garcia, B. Gaimez, D. Garcia Garcia-Pinto, D. Garrido, X. Geenen, H. Gelmini, G. Gemmeke, H. Ghia, P. L. Giller, M. Glass, H. Gold, M. S. Golup, G. Albarracin, F. Gomez Berisso, M. Gomez Herrero, R. Gomez Goncalves, P. do Amaral, M. Goncalves Gonzalez, D. Gonzalezc, J. G. Gonzalez, M. Gora, D. Gorgi, A. Gouffon, P. Grassi, V. Grillo, A. F. Grunfeld, C. Guardincerri, Y. Guarino, F. Guedes, G. P. Gutierrez, J. Hague, J. D. Hamilton, J. C. Hansen, P. Harari, D. Harmsma, S. Harton, J. L. Haungs, A. Hauschildt, T. Healy, M. D. Hebbeker, T. Hebrero, G. Heck, D. Hojvat, C. Holmes, V. C. Homola, P. Hoerandel, J. Horneffer, A. Horvat, M. Hrabovsky, M. Huege, T. Hussain, M. Larlori, M. Insolia, A. Ionita, F. Italiano, A. Kaducak, M. Kampert, K. H. Karova, T. Kegl, B. Keilhauer, B. Kemp, E. Kieckhafer, R. M. Klages, H. O. Kleifges, M. Kleinfeller, J. Knapik, R. Knapp, J. Koanga, V. -H. Krieger, A. Kroemer, O. Kuempel, D. Kunka, N. Kusenko, A. La Rosa, G. Lachaud, C. Lago, B. L. Lebrun, D. LeBrun, P. Lee, J. de Oliveira, M. A. Leigui Lopez, R. Letessier-Selvon, A. Leuthold, M. Lhenry-Yvon, I. Aguera, A. Lopez Bahilo, J. Lozano Garcia, R. Luna Maccarone, M. C. Macolino, C. Maldera, S. Mancarella, G. Mancenido, M. E. Mandatat, D. Mantsch, P. Mariazzi, A. G. Maris, I. C. Falcon, H. R. Marquez Martello, D. Martinez, J. Bravo, O. Martinez Mathes, H. J. Matthews, J. Matthews, J. A. J. Matthiae, G. Maurizio, D. Mazur, P. O. McCauley, T. McEwen, M. McNeil, R. R. Medina, M. C. Medina-Tanco, G. Meli, A. Melo, D. Menichetti, E. Menschikov, A. Meurer, Chr. Meyhandan, R. Micheletti, M. I. Miele, G. Miller, W. Mollerach, S. Monasor, M. Ragaigne, D. Monnier Montanet, F. Morales, B. Morello, C. Moreno, J. C. Morris, C. Mostafa, M. Muller, M. A. Mussa, R. Navarra, G. Navarro, J. L. Navas, S. Necesal, P. Nellen, L. Newman-Holmes, C. Newton, D. Nhung, P. T. Nierstenhoefer, N. Nitz, D. Nosek, D. Nozka, L. Oehlschlaeger, J. Ohnuki, T. Olinto, A. Olmos-Gilbaja, V. M. Ortiz, M. Ortolani, F. Ostapchenko, S. Otero, L. Pacheco, N. Selmi-Dei, D. Pakk Palatka, M. Pallotta, J. Parente, G. Parizot, E. Parlati, S. Pastor, S. Patel, M. Paul, T. Pavlidou, V. Payet, K. Pech, M. Pekala, J. Pelayo, R. Pepe, I. M. Perrone, L. Petrera, S. Petrinca, P. Petrov, Y. Pichel, A. Piegaia, R. Pierog, T. Pimenta, M. Pinto, T. Pirronello, V. Pisanti, O. Platino, M. Pochon, J. Privitera, P. Prouza, M. Quel, E. J. Rautenberg, J. Redondo, A. Reucroft, S. Revenu, B. Rezende, F. A. S. Ridky, J. Riggi, S. Risse, M. Riviere, C. Rizi, V. Roberts, M. Robledo, C. Rodriguez, G. Martino, J. Rodriguez Rojo, J. Rodriguez Rodriguez-Cabo, I. Rodriguez-Frias, M. D. Ros, G. Rosado, J. Roth, M. Rouille-d'Orfeuil, B. Roulet, E. Roverok, A. C. Salamida, F. Salazar, H. Salina, G. Sanchez, F. Santander, M. Santo, C. E. Santos, E. M. Sarazin, F. Sarkar, S. Sato, R. Scherini, V. Schieler, H. Schmidt, A. Schmidt, F. Schmidt, T. Scholten, O. Schovanek, P. Schuessler, F. Sciutto, S. J. Scuderi, M. Segreto, A. Semikoz, D. Settimo, M. Shellard, R. C. Sidelnik, I. Siffert, B. B. Sigl, G. De Grande, N. Smetniansky Smialkowski, A. Smida, R. Smith, A. G. K. Smith, B. E. Snow, G. R. Sokolsky, P. Sommers, P. Sorokin, J. Spinka, H. Squartini, R. Strazzeri, E. Stutz, A. Suarez, F. Suomijarvi, T. Supanitsky, A. D. Sutherland, M. S. Swain, J. Szadkowski, Z. Takahashi, J. Tamashiro, A. Tamburro, A. Tascau, O. Tcaciuc, R. Thao, N. T. Thomas, D. Ticona, R. Tiffenberg, J. Timmermans, C. Tkaczyk, W. Peixoto, C. J. Todero Tome, B. Tonachini, A. Torres, I. Travnicek, P. Tripathi, A. Tristram, G. Tscherniakhovski, D. Tueros, M. Ulrich, R. Unger, M. Urban, M. Galicia, J. F. Valdes Valino, I. Valore, L. van den Berg, A. M. van Elewyck, V. Vazquez, R. A. Veberic, D. Veiga, A. Velarde, A. Venters, T. Verzi, V. Videla, M. Villasenor, L. Vorobiov, S. Voyvodic, L. Wahlberg, H. Wainberg, O. Warner, D. Watson, A. A. Westerhoff, S. Wieczorek, G. Wiencke, L. Wilczynska, B. Wilczynski, H. Wileman, C. Winnick, M. G. Wu, H. Wundheiler, B. Yamamoto, T. Younk, P. Zas, E. Zavrtanik, D. Zavrtanik, M. Zech, A. Zepeda, A. Ziolkowski, M. TI Correlation of the highest-energy cosmic rays with the positions of nearby active galactic nuclei SO ASTROPARTICLE PHYSICS LA English DT Article DE high energy cosmic rays; UHECR; AGN; anisotropy; extra-galactic; auger; observatory; GZK; GMF; EGMF ID GALAXY CLUSTER SURVEY; RELATIVISTIC JETS; BL-LACERTAE; ORIGIN; ACCELERATION; CATALOG; CUTOFF; ANISOTROPY; PARTICLES; CENTAURUS AB Data collected by the Pierre Auger Observatory provide evidence for anisotropy in the arrival directions of the cosmic rays with the highest-energies, which are correlated with the positions of relatively nearby active galactic nuclei (AGN) [Pierre Auger Collaboration, Science 318 (2007) 938]. The correlation has maximum significance for cosmic rays with energy greater than similar to 6 x 10(19) eV and AGN at a distance less than similar to 75 Mpc. We have confirmed the anisotropy at a confidence level of more than 99% through a test with parameters specified a priori, using an independent data set. The observed correlation is compatible with the hypothesis that cosmic rays with the highest-energies originate from extra-galactic sources close enough so that their flux is not significantly attenuated by interaction with the cosmic background radiation (the Greisen-Zatsepin-Kuz'min effect). The angular scale of the correlation observed is a few degrees, which suggests a predominantly light composition unless the magnetic fields are very weak outside the thin disk of our galaxy. Our present data do not identify AGN as the sources of cosmic rays unambiguously, and other candidate sources which are distributed as nearby AGN are not ruled out. We discuss the prospect of unequivocal identification of individual sources of the highest-energy cosmic rays within a few years of continued operation of the Pierre Auger Observatory. (C) 2008 Elsevier B.V. All rights reserved. C1 [Pallotta, J.; Quel, E. J.] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina. 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RI Shellard, Ronald/G-4825-2012; Miele, Gennaro/F-3628-2010; Muller, Marcio Aparecido/H-9112-2012; fulgione, walter/I-5232-2012; D'Urso, Domenico/I-5325-2012; Bleve, Carla/J-2521-2012; Brogueira, Pedro/K-3868-2012; Chinellato, Jose Augusto/I-7972-2012; Tamburro, Alessio/A-5703-2013; Falcke, Heino/H-5262-2012; Arneodo, Francesco/B-8076-2013; Anjos, Joao/C-8335-2013; de Mello Neto, Joao/C-5822-2013; Fulgione, Walter/C-8255-2016; ORTOLANI, FABRIZIO/F-7271-2016; scuderi, mario/O-7019-2014; zas, enrique/I-5556-2015; Sarkar, Subir/G-5978-2011; Moura Santos, Edivaldo/K-5313-2016; Gouffon, Philippe/I-4549-2012; de Almeida, Rogerio/L-4584-2016; Abreu, Pedro/L-2220-2014; Navas, Sergio/N-4649-2014; Arqueros, Fernando/K-9460-2014; Bueno, Antonio/F-3875-2015; Parente, Gonzalo/G-8264-2015; Alvarez-Muniz, Jaime/H-1857-2015; Rosado, Jaime/K-9109-2014; Valino, Ines/J-8324-2012; Carvalho Jr., Washington/H-9855-2015; De Donato, Cinzia/J-9132-2015; Di Giulio, Claudio/B-3319-2015; Martello, Daniele/J-3131-2012; 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Asorey, Hernan/0000-0002-4559-8785; Andringa, Sofia/0000-0002-6397-9207; Mantsch, Paul/0000-0002-8382-7745; Aramo, Carla/0000-0002-8412-3846; Anzalone, Anna/0000-0003-1849-198X; Salamida, Francesco/0000-0002-9306-8447; Catalano, Osvaldo/0000-0002-9554-4128; Navarro Quirante, Jose Luis/0000-0002-9915-1735; Aglietta, Marco/0000-0001-8354-5388; Maccarone, Maria Concetta/0000-0001-8722-0361; Kothandan, Divay/0000-0001-9048-7518; Blanco, Francisco/0000-0003-4332-434X; Conceicao, Ruben/0000-0003-4945-5340; Beatty, James/0000-0003-0481-4952; Guarino, Fausto/0000-0003-1427-9885; Rodriguez Frias, Maria /0000-0002-2550-4462; De Mitri, Ivan/0000-0002-8665-1730; Nosek, Dalibor/0000-0001-6219-200X NR 73 TC 286 Z9 287 U1 2 U2 60 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-6505 EI 1873-2852 J9 ASTROPART PHYS JI Astropart Phys. PD APR PY 2008 VL 29 IS 3 BP 188 EP 204 DI 10.1016/j.astropartphys.2008.01.002 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 294CZ UT WOS:000255383000004 ER PT J AU Cuoco, A Hannestad, S Haugbolle, T Kachelriess, M Serpico, PD AF Cuoco, A. Hannestad, S. Haugbolle, T. Kachelriess, M. Serpico, P. D. TI Clustering properties of ultra-high-energy cosmic rays and the search for their astrophysical sources SO ASTROPHYSICAL JOURNAL LA English DT Article DE BL Lacertae objects : general; cosmic rays; galaxies : active; galaxies : Seyfert; large-scale structure of universe; methods : statistical ID ACTIVE GALACTIC NUCLEI; SMALL-SCALE ANISOTROPY; RESOLUTION FLYS EYE; ARRIVAL DIRECTIONS; HOST GALAXIES; POINT SOURCES; SPECTRUM; CATALOG; SIGNATURES; BURSTS AB The arrival directions of ultra-high-energy cosmic rays (UHECRs) may show anisotropies on all scales, from just above the experimental angular resolution up to medium scales and dipole anisotropies. We find that a global comparison of the two-point autocorrelation function of the data with that of catalogs of potential sources is a powerful diagnostic tool. In particular, this method is far less sensitive than cross-correlation studies to unknown deflections in magnetic fields while keeping a strong discrimination power among source candidates. We illustrate these advantages by considering ordinary galaxies, gamma-ray bursts, and active galactic nuclei as possible sources. Already the sparse publicly available data suggest that the sources of UHECRs may be a strongly clustered subsample of galaxies or of active galactic nuclei. We present forecasts for various cases of source distributions which can be checked soon with the Pierre Auger Observatory. C1 [Cuoco, A.; Hannestad, S.; Haugbolle, T.] Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus, Denmark. [Kachelriess, M.] NTNU, Inst Fys, N-7491 Trondheim, Norway. [Serpico, P. D.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. RP Cuoco, A (reprint author), Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus, Denmark. RI Haugbolle, Troels/L-7984-2014 OI Haugbolle, Troels/0000-0002-9422-8684 NR 61 TC 14 Z9 14 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2008 VL 676 IS 2 BP 807 EP 815 DI 10.1086/526493 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 281WW UT WOS:000254530600005 ER PT J AU Dong, F Pierpaoli, E Gunn, JE Wechsler, RH AF Dong, Feng Pierpaoli, Elena Gunn, James E. Wechsler, Risa H. TI Optical cluster finding with an adaptive matched-filter technique: Algorithm and comparison with simulations SO ASTROPHYSICAL JOURNAL LA English DT Article DE cosmology : theory; galaxies : clusters : general; large-scale structure of universe ID DIGITAL SKY SURVEY; GALAXY LUMINOSITY FUNCTION; SPECTROSCOPIC TARGET SELECTION; FRANCE REDSHIFT SURVEY; K-BAND PROPERTIES; RICH CLUSTERS; RADIAL-DISTRIBUTION; CATALOG; EVOLUTION; SAMPLE AB We present a modified adaptive matched-filter algorithm designed to identify clusters of galaxies in wide-field imaging surveys such as the Sloan Digital Sky Survey (SDSS). The cluster-finding technique is fully adaptive to imaging surveys with spectroscopic coverage, multicolor photometric redshifts, no redshift information at all, and any combination of these within one survey. It works with high efficiency in multiband imaging surveys for which photometric redshifts can be estimated with well-understood error distributions. Tests of the algorithm on realistic mock SDSS catalogs suggest that the detected sample is similar to 85% complete and over 90% pure for clusters with masses above 1.0; 10(14) h(-1) M-circle dot and redshifts up to z = 0.45. The errors of estimated cluster redshifts from a maximum likelihood method are shown to be small (typically less than 0.01) over the whole redshift range, with photometric redshift errors typical of those found in the SDSS. Inside the spherical radius corresponding to a galaxy overdensity of Delta = 200, we find the derived cluster richness Lambda(200) to be a roughly linear indicator of its virial mass M-200, which well recovers the relation between total luminosity and cluster mass of the input simulation. C1 [Dong, Feng; Gunn, James E.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Pierpaoli, Elena] Univ So Calif, Los Angeles, CA 90089 USA. [Wechsler, Risa H.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA. [Wechsler, Risa H.] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94305 USA. RP Dong, F (reprint author), Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. EM feng@astro.princeton.edu; pierpaol@usc.edu; jeg@astro.princeton.edu OI Pierpaoli, Elena/0000-0002-7957-8993 NR 95 TC 27 Z9 27 U1 1 U2 4 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2008 VL 676 IS 2 BP 868 EP 879 DI 10.1086/522490 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 281WW UT WOS:000254530600009 ER PT J AU Trudolyubov, SP Priedhorsky, WC AF Trudolyubov, Sergey P. Priedhorsky, William C. TI XMM-Newton discovery of 217 s pulsations in the brightest persistent supersoft X-ray source in M31 SO ASTROPHYSICAL JOURNAL LA English DT Article DE galaxies : individual (M31); novae, cataclysmic variables; X-rays : binaries; X-rays : stars ID MAGNETIC NEUTRON-STARS; PHOTON IMAGING CAMERA; ROSAT PSPC SURVEY; CENTRAL REGION; ACCRETION TORQUES; LIGHT-CURVE; CHANDRA; M-31; POPULATION; EMISSION AB We report on the discovery of a periodic modulation in the bright supersoft X-ray source XMMU J004252.5+411540 detected in the 2000-2004 XMM-Newton observations of M31. The source exhibits X-ray pulsations with a period P similar to 217.7 s and a quasi-sinusoidal pulse shape and pulsed fraction similar to 7%-11%. We did not detect statistically significant changes in the pulsation period on the timescale of 4 yr. The X-ray spectra of XMMU J004252.5+411540 are extremely soft and can be approximated with an absorbed blackbody of temperature 62-77 eV and a weak power-law tail of photon index Gamma similar to 1.7-3.1 in the 0.2-3.0 keV energy band. The X-ray properties of the source and the absence of an optical/UV counterpart brighter than 21 mag suggest that it belongs to M31. The estimated bolometric luminosity of the source varies between similar to 2 x 10(38) and similar to 8 x 10(38) ergs s(-1) at 760 kpc, depending on the choice of spectral model. The X-ray pulsations and supersoft spectrum of XMMU J004252.5+411540 imply that it is almost certainly an accreting white dwarf, steadily burning hydrogen-rich material on its surface. We interpret X-ray pulsations as a signature of the strong magnetic field of the rotating white dwarf. Assuming that the X-ray source is powered by disk accretion, we estimate its surface field strength to be in the range 4 x 10(5) G < B-0 < 8 x 10(6) G. XMMU J004252.5+411540 is the second supersoft X-ray source in M31 showing coherent pulsations, after the transient supersoft source XMMU J004319.4+411758 with an 865.5 s pulsation period. C1 [Trudolyubov, Sergey P.] Univ Calif Riverside, Inst Geophys & Planetary Phys, Riverside, CA 92521 USA. [Priedhorsky, William C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Trudolyubov, SP (reprint author), Univ Calif Riverside, Inst Geophys & Planetary Phys, Riverside, CA 92521 USA. OI Priedhorsky, William/0000-0003-0295-9138 NR 49 TC 15 Z9 15 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2008 VL 676 IS 2 BP 1218 EP 1225 DI 10.1086/526397 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 281WW UT WOS:000254530600038 ER PT J AU Karakas, AI Lee, HY Lugaro, M Gorres, J Wiescher, M AF Karakas, Amanda I. Lee, Hye Young Lugaro, Maria Gorres, J. Wiescher, M. TI The impact of the (18)f(alpha,p)(21)ne reaction on asymptotic giant branch nucleosynthesis SO ASTROPHYSICAL JOURNAL LA English DT Article DE nuclear reactions, nucleosynthesis, abundances; stars : AGB and post-AGB; stars : carbon; stars : Population II ID THERMONUCLEAR REACTION-RATES; METEORITIC SIC GRAINS; CARBON STARS; S-PROCESS; LOW-MASS; FLUORINE ABUNDANCES; INFRARED PHOTOMETRY; INTERSTELLAR GRAINS; PLANETARY-NEBULAE; INTERMEDIATE-MASS AB We present detailed models of low- and intermediate-mass asymptotic giant branch (AGB) stars with and without the F-18(alpha,p)Ne-21 reaction included in the nuclear network, where the rate for this reaction has been recently experimentally evaluated for the first time. The lower and recommended measured rates for this reaction produce negligible changes to the stellar yields, whereas the upper limit of the rate affects the production of F-19 and Ne-21. The stellar yields increase by similar to 50% to up to a factor of 4.5 for F-19, and by factors of similar to 2 to 9.6 for Ne-21. While the F-18(alpha, p)Ne-21 reaction competes with O-18 production, the extra protons released are captured by O-18 to facilitate the O-18(p,alpha)N-15(alpha,gamma)F-19 chain. The higher abundances of F-19 obtained using the upper limit of the rate helps to match the [F/O] ratios observed in AGB stars, but only for large C/O ratios. Extramixing processes are proposed to help to solve this problem. Some evidence that the F-18(alpha, p)Ne-21 rate might be closer to its upper limit is provided by the fact that the higher calculated Ne-21/Ne-22 ratios in the He intershell provide an explanation for the Ne isotopic composition of silicon-carbide grains from AGB stars. This needs to be confirmed by future experiments of the F-18(alpha, p)Ne-21 reaction rate. The availability of accurate fluorine yields from AGB stars will be fundamental for interpreting observations of this element in carbon-enhanced metal-poor stars. C1 [Lee, Hye Young] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Karakas, Amanda I.] Australian Natl Univ, Mt Stromlo & Siding Spring Observ, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia. [Lugaro, Maria] Univ Utrecht, Sterrekundig Inst, NL-3508 TA Utrecht, Netherlands. [Gorres, J.; Wiescher, M.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. [Gorres, J.; Wiescher, M.] Univ Notre Dame, Joint Inst Nucl Astrophys, Notre Dame, IN 46556 USA. RP Karakas, AI (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. EM akarakas@mso.anu.edu.au; hylee@phy.anl.gov; m.lugaro@phys.uu.nl; jgorres@nd.edu; mwiesche@nd.edu NR 61 TC 27 Z9 27 U1 1 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2008 VL 676 IS 2 BP 1254 EP 1261 DI 10.1086/528840 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 281WW UT WOS:000254530600042 ER PT J AU Ryutova, M Berger, T Title, A AF Ryutova, M. Berger, T. Title, A. TI On the fine structure and formation of sunspot penumbrae SO ASTROPHYSICAL JOURNAL LA English DT Article DE Sun : chromosphere; Sun : magnetic fields; Sun : photosphere; sunspots ID MAGNETIC-FLUX TUBES; SCREW-PINCH; FILAMENTARY STRUCTURE; PHOTOSPHERIC NETWORK; RESOLUTION; PLASMA; ELEMENTS; FIELDS; EQUILIBRIUM; INSTABILITY AB Recent high-resolution observations with the 1 m Swedish Solar Telescope (SST) on La Palma reveal the fine substructure of penumbral filaments and new properties of their dynamics. These findings provide both the basis and constraints for novel models of the penumbra. We present new observations of a large isolated sunspot near Sun center obtained with the SST in 2006. Our data, taken simultaneously in the 4305 angstrom G-band and 4364 angstrom continuum bandpasses and compiled in high-cadence movies, confirm the previous results and reveal new features of penumbral filament dynamics. We find that individual filaments are cylindrical helices with the apparent properties of vortex tubes exhibiting flow patterns similar to kinked flux tubes. Measured pitch/radius ratios of helical filaments indicate their dynamic stability. We propose a mechanism that explains the fine structure of penumbral filaments, their observed dynamics, and their formation process in association with sunspot properties. The mechanism assumes that the umbra itself is a dense conglomerate of twisted, interlaced flux tubes with peripheral filaments branching out from the "trunk'' at different heights due to ongoing reconnection processes and arcing downward to the photosphere. The twist of individual filaments, and the resulting distribution of magnetic fields and temperature, is due to the onset of the well-known screw pinch instability, the parameters of which can be measured from our data. C1 [Ryutova, M.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. [Berger, T.; Title, A.] Lockheed Martin Solar & Astrophys Lab, Palo Alto, CA 94304 USA. RP Ryutova, M (reprint author), Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. EM ryutova1@llnl.gov; berger@lmsal.com; title@lmsal.com NR 48 TC 20 Z9 20 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD APR 1 PY 2008 VL 676 IS 2 BP 1356 EP 1366 DI 10.1086/527552 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 281WW UT WOS:000254530600050 ER PT J AU Hoffman, RD Mueller, B Janka, HT AF Hoffman, R. D. Mueller, B. Janka, H. -T. TI Nucleosynthesis in O-Ne-Mg supernovae SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE nuclear reactions; nucleosynthesis; abundances; supernovae : general ID NEUTRINO-DRIVEN WINDS; ELECTRON-CAPTURE SUPERNOVAE; R-PROCESS NUCLEOSYNTHESIS; ALPHA-PROCESS; STARS; CORES; COLLAPSE; EXPLOSIONS; ELEMENTS; ABUNDANCES AB We have studied detailed nucleosynthesis in the shocked surface layers of an oxygen-neon-magnesium core-collapse supernova with an eye to determining whether the conditions are suitable for r-process nucleosynthesis. We find no such conditions in an unmodified model, but do find overproduction of nuclei (previously N = 50 seen in early neutron-rich neutrino winds) in amounts that, if ejected, would pose serious problems for Galactic chemical evolution. C1 [Hoffman, R. D.] Lawrence Livermore Natl Lab, N Div, Livermore, CA 94550 USA. [Mueller, B.; Janka, H. -T.] Max Planck Inst Astrophys, D-85741 Garching, Germany. RP Hoffman, RD (reprint author), Lawrence Livermore Natl Lab, N Div, L-414, Livermore, CA 94550 USA. EM rdhoffman@llnl.gov; bmueller@mpa-garching.mpg.de; thj@mpa-garching.mpg.de NR 35 TC 32 Z9 33 U1 0 U2 2 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD APR 1 PY 2008 VL 676 IS 2 BP L127 EP L130 DI 10.1086/587621 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 291ZK UT WOS:000255235900009 ER PT J AU Huang, L Liu, S Shen, ZQ Cai, MJ Li, H Fryer, CL AF Huang, Lei Liu, Siming Shen, Zhi-Qiang Cai, Mike J. Li, Hui Fryer, Christopher L. TI Linearly and circularly polarized emission in Sagittarius A SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE black hole physics; galaxy : center; plasmas; polarization; radiative transfer submillimeter ID SUPERMASSIVE BLACK-HOLE; GALACTIC-CENTER; SUBMILLIMETER EMISSION; MILKY-WAY; ASTERISK; MILLIMETER; RADIO; INSTABILITY; ROTATION; SPECTRUM AB We perform general relativistic ray-tracing calculations of the transfer of polarized synchrotron radiation through the relativistic accretion flow in Sagittarius (Sgr) A*. Based on a two-temperature magnetorotational instability (MRI) induced accretion mode, the birefringence effects are treated self-consistently. By fitting the spectrum and polarization of Sgr A* from millimeter to near-infrared bands, we are able to not only constrain the basic parameters related to the MRI and the electron heating rate, but also limit the orientation of the accretion torus. These constraints lead to unique polarimetric images, which may be compared with future millimeter and submillimeter VLBI observations. In combination with general relativistic MHD simulations, the model has the potential to test the MRI with observations of Sgr A*. C1 [Huang, Lei; Shen, Zhi-Qiang] Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China. [Huang, Lei] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China. [Liu, Siming; Li, Hui; Fryer, Christopher L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Shen, Zhi-Qiang] USTC, Shanghai 200030, Peoples R China. [Shen, Zhi-Qiang] Joint Inst Galaxy & Cosmol JOINGC ShAO, Shanghai 200030, Peoples R China. [Cai, Mike J.] Acad Sinica, Inst Astron & Astrophys, Taipei 106, Taiwan. RP Huang, L (reprint author), Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China. EM muduri@shao.ac.cn RI liu, siming/B-5389-2011 NR 42 TC 14 Z9 14 U1 0 U2 2 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD APR 1 PY 2008 VL 676 IS 2 BP L119 EP L122 DI 10.1086/587742 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 291ZK UT WOS:000255235900007 ER PT J AU Adelman-McCarthy, JK Agueros, MA Allam, SS Prieto, CA Anderson, KSJ Anderson, SF Annis, J Bahcall, NA Bailer-Jones, CAL Baldry, IK Barentine, JC Bassett, BA Becker, AC Beers, TC Bell, EF Berlind, AA Bernardi, M Blanton, MR Bochanski, JJ Boroski, WN Brinchmann, J Brinkmann, J Brunner, RJ Budavari, T Carliles, S Carr, MA Castander, FJ Cinabro, D Cool, RJ Covey, KR Csabai, I Cunha, CE Davenport, JRA Dilday, B Doi, M Eisenstein, DJ Evans, ML Fan, XH Finkbeiner, DP Friedman, SD Frieman, JA Fukugita, M Gansicke, BT Gates, E Gillespie, B Glazebrook, K Gray, J Grebel, EK Gunn, JE Gurbani, VK Hall, PB Harding, P Harvanek, M Hawley, SL Hayes, J Heckman, TM Hendry, JS Hindsley, RB Hirata, CM Hogan, CJ Hogg, DW Hyde, JB Ichikawa, S Ivezic, Z Jester, S Johnson, JA Jorgensen, AM Juric, M Kent, SM Kessler, R Kleinman, SJ Knapp, GR Kron, RG Krzesinski, J Kuropatkin, N Lamb, DQ Lampeitl, H Lebedeva, S Lee, YS Leger, RF Lepine, S Lima, M Lin, H Long, DC Loomis, CP Loveday, J Lupton, RH Malanushenko, O Malanushenko, V Mandelbaum, R Margon, B Marriner, JP Martinez-Delgado, D Matsubara, T McGehee, PM Mckay, TA Meiksin, A Morrison, HL Munn, JA Nakajima, R Neilsen, EH Newberg, HJ Nichol, RC Nicinski, T Nieto-Santisteban, M Nitta, A Okamura, S Owen, R Oyaizu, H Padmanabhan, N Pan, K Park, C Peoples, J Pier, JR Pope, AC Purger, N Raddick, MJ Fiorentin, PR Richards, GT Richmond, MW Riess, AG Rix, HW Rockosi, CM Sako, M Schlegel, DJ Schneider, DP Schreiber, MR Schwope, AD Seljak, U Sesar, B Sheldon, E Shimasaku, K Sivarani, T Smith, JA Snedden, SA Steinmetz, M Strauss, MA SubbaRao, M Suto, Y Szalay, AS Szapudi, I Szkody, P Tegmark, M Thakar, AR Tremonti, CA Tucker, DL Uomoto, A Berk, DEV Vandenberg, J Vidrih, S Vogeley, MS Voges, W Vogt, NP Wadadekar, Y Weinberg, DH West, AA White, SDM Wilhite, BC Yanny, B Yocum, DR York, DG Zehavi, I Zucker, DB AF Adelman-McCarthy, Jennifer K. Agueros, Marcel A. Allam, Sahar S. Prieto, Carlos Allende Anderson, Kurt S. J. Anderson, Scott F. Annis, James Bahcall, Neta A. Bailer-Jones, C. A. L. Baldry, Ivan K. Barentine, J. C. Bassett, Bruce A. Becker, Andrew C. Beers, Timothy C. Bell, Eric F. Berlind, Andreas A. Bernardi, Mariangela Blanton, Michael R. Bochanski, John J. Boroski, William N. Brinchmann, Jarle Brinkmann, J. Brunner, Robert J. Budavari, Tamas Carliles, Samuel Carr, Michael A. Castander, Francisco J. Cinabro, David Cool, R. J. Covey, Kevin R. Csabai, Istvan Cunha, Carlos E. Davenport, James R. A. Dilday, Ben Doi, Mamoru Eisenstein, Daniel J. Evans, Michael L. Fan, Xiaohui Finkbeiner, Douglas P. Friedman, Scott D. Frieman, Joshua A. Fukugita, Masataka Gansicke, Boris T. Gates, Evalyn Gillespie, Bruce Glazebrook, Karl Gray, Jim Grebel, Eva K. Gunn, James E. Gurbani, Vijay K. Hall, Patrick B. Harding, Paul Harvanek, Michael Hawley, Suzanne L. Hayes, Jeffrey Heckman, Timothy M. Hendry, John S. Hindsley, Robert B. Hirata, Christopher M. Hogan, Craig J. Hogg, David W. Hyde, Joseph B. Ichikawa, Shin-ichi Ivezic, Zeljko Jester, Sebastian Johnson, Jennifer A. Jorgensen, Anders M. Juric, Mario Kent, Stephen M. Kessler, R. Kleinman, S. J. Knapp, G. R. Kron, Richard G. Krzesinski, Jurek Kuropatkin, Nikolay Lamb, Donald Q. Lampeitl, Hubert Lebedeva, Svetlana Lee, Young Sun Leger, R. French Lepine, Sebastien Lima, Marcos Lin, Huan Long, Daniel C. Loomis, Craig P. Loveday, Jon Lupton, Robert H. Malanushenko, Olena Malanushenko, Viktor Mandelbaum, Rachel Margon, Bruce Marriner, John P. Martinez-Delgado, David Matsubara, Takahiko McGehee, Peregrine M. McKay, Timothy A. Meiksin, Avery Morrison, Heather L. Munn, Jeffrey A. Nakajima, Reiko Neilsen, Eric H., Jr. Newberg, Heidi Jo Nichol, Robert C. Nicinski, Tom Nieto-Santisteban, Maria Nitta, Atsuko Okamura, Sadanori Owen, Russell Oyaizu, Hiroaki Padmanabhan, Nikhil Pan, Kaike Park, Changbom Peoples, John, Jr. Pier, Jeffrey R. Pope, Adrian C. Purger, Norbert Raddick, M. Jordan Fiorentin, Paola Re Richards, Gordon T. Richmond, Michael W. Riess, Adam G. Rix, Hans-Walter Rockosi, Constance M. Sako, Masao Schlegel, David J. Schneider, Donald P. Schreiber, Matthias R. Schwope, Axel D. Seljak, Uros Sesar, Branimir Sheldon, Erin Shimasaku, Kazu Sivarani, Thirupathi Smith, J. Allyn Snedden, Stephanie A. Steinmetz, Matthias Strauss, Michael A. SubbaRao, Mark Suto, Yasushi Szalay, Alexander S. Szapudi, Istvan Szkody, Paula Tegmark, Max Thakar, Aniruddha R. Tremonti, Christy A. Tucker, Douglas L. Uomoto, Alan Berk, Daniel E. Vanden Vandenberg, Jan Vidrih, S. Vogeley, Michael S. Voges, Wolfgang Vogt, Nicole P. Wadadekar, Yogesh Weinberg, David H. West, Andrew A. White, Simon D. M. Wilhite, Brian C. Yanny, Brian Yocum, D. R. York, Donald G. Zehavi, Idit Zucker, Daniel B. TI The Sixth Data Release of the Sloan Digital Sky Survey SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES LA English DT Article DE atlases; catalogs; surveys ID EARLY-TYPE GALAXIES; SPECTROSCOPIC TARGET SELECTION; SURVEY PHOTOMETRIC SYSTEM; HORIZONTAL-BRANCH STARS; SURVEY IMAGING DATA; 1ST DATA RELEASE; WHITE-DWARFS; STELLAR SPECTRA; GALACTIC HALO; SAMPLE SELECTION AB This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and parameters of roughly 287 million objects over 9583 deg(2), including scans over a large range of Galactic latitudes and longitudes. The survey also includes 1.27 million spectra of stars, galaxies, quasars, and blank sky ( for sky subtraction) selected over 7425 deg2. This release includes much more stellar spectroscopy than was available in previous data releases and also includes detailed estimates of stellar temperatures, gravities, and metallicities. The results of improved photometric calibration are now available, with uncertainties of roughly 1% in g, r, i, and z, and 2% in u, substantially better than the uncertainties in previous data releases. The spectra in this data release have improved wavelength and flux calibration, especially in the extreme blue and extreme red, leading to the qualitatively better determination of stellar types and radial velocities. The spectrophotometric fluxes are now tied to point-spread function magnitudes of stars rather than fiber magnitudes. This gives more robust results in the presence of seeing variations, but also implies a change in the spectrophotometric scale, which is now brighter by roughly 0.35 mag. Systematic errors in the velocity dispersions of galaxies have been fixed, and the results of two independent codes for determining spectral classifications and red-shifts are made available. Additional spectral outputs are made available, including calibrated spectra from individual 15 minute exposures and the sky spectrum subtracted from each exposure. We also quantify a recently recognized underestimation of the brightnesses of galaxies of large angular extent due to poor sky subtraction; the bias can exceed 0.2 mag for galaxies brighter than r = 14 mag. C1 [Adelman-McCarthy, Jennifer K.; Allam, Sahar S.; Annis, James; Boroski, William N.; Frieman, Joshua A.; Gurbani, Vijay K.; Hendry, John S.; Kent, Stephen M.; Kron, Richard G.; Kuropatkin, Nikolay; Lebedeva, Svetlana; Leger, R. French; Lin, Huan; Marriner, John P.; Neilsen, Eric H., Jr.; Nicinski, Tom; Peoples, John, Jr.; Tucker, Douglas L.; Yanny, Brian; Yocum, D. R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Agueros, Marcel A.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA. [Allam, Sahar S.] Univ Wyoming, Dept Phys & Astron, Laramie, WY 82071 USA. [Prieto, Carlos Allende; Barentine, J. C.] Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA. [Prieto, Carlos Allende; Barentine, J. C.] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA. [Anderson, Kurt S. J.; Brinkmann, J.; Gillespie, Bruce; Krzesinski, Jurek; Long, Daniel C.; Malanushenko, Olena; Malanushenko, Viktor; Pan, Kaike; Snedden, Stephanie A.] Apache Point Observ, Sunspot, NM 88349 USA. [Anderson, Kurt S. J.; Vogt, Nicole P.] New Mexico State Univ, Dept Astron, Las Cruces, NM 88003 USA. [Anderson, Scott F.; Becker, Andrew C.; Bochanski, John J.; Davenport, James R. A.; Evans, Michael L.; Hogan, Craig J.; Ivezic, Zeljko; Owen, Russell; Sesar, Branimir; Szkody, Paula] Univ Washington, Dept Astron, Seattle, WA 98195 USA. [Bahcall, Neta A.; Carr, Michael A.; Gunn, James E.; Knapp, G. R.; Loomis, Craig P.; Lupton, Robert H.; Strauss, Michael A.; Wadadekar, Yogesh] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Bailer-Jones, C. A. L.; Bell, Eric F.; Jester, Sebastian; Fiorentin, Paola Re; Rix, Hans-Walter] Max Planck Inst Astron, D-69117 Heidelberg, Germany. [Baldry, Ivan K.; Budavari, Tamas; Carliles, Samuel; Csabai, Istvan; Heckman, Timothy M.; Nieto-Santisteban, Maria; Raddick, M. Jordan; Riess, Adam G.; Szalay, Alexander S.; Thakar, Aniruddha R.; Vandenberg, Jan] Johns Hopkins Univ, Dept Phys & Astron, Ctr Astrophys Sci, Baltimore, MD 21218 USA. [Bassett, Bruce A.] S African Astron Observ, ZA-7935 Cape Town, South Africa. [Bassett, Bruce A.] Univ Cape Town, ZA-7925 Cape Town, South Africa. [Beers, Timothy C.; Lee, Young Sun; Sivarani, Thirupathi] Michigan State Univ, Dept Phys & Astrophys, CSCE, E Lansing, MI 48824 USA. [Beers, Timothy C.; Lee, Young Sun; Sivarani, Thirupathi] Michigan State Univ, Joint Inst Lab Astrophys, E Lansing, MI 48824 USA. [Berlind, Andreas A.; Blanton, Michael R.; Hogg, David W.] New York Univ, Dept Phys, Ctr Cosmol & Particle Phys, New York, NY 10003 USA. [Bernardi, Mariangela; Hyde, Joseph B.; Nakajima, Reiko; Sako, Masao] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [Brinchmann, Jarle] Univ Porto, Ctr Astrofis, P-4100 Oporto, Portugal. [Brunner, Robert J.; Wilhite, Brian C.] Univ Illinois, Dept Astron, Urbana, IL 61801 USA. [Castander, Francisco J.; Cool, R. J.] Inst Ciencies Espai IEEC CSIC, E-08193 Barcelona, Spain. [Cinabro, David] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48202 USA. [Eisenstein, Daniel J.; Fan, Xiaohui; Tremonti, Christy A.] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. [Covey, Kevin R.; Finkbeiner, Douglas P.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Csabai, Istvan; Purger, Norbert] Eotvos Lorand Univ, Dept Phys Complex Syst, H-1518 Budapest, Hungary. [Cunha, Carlos E.; Frieman, Joshua A.; Gates, Evalyn; Kron, Richard G.; Lamb, Donald Q.; Oyaizu, Hiroaki; Sheldon, Erin; SubbaRao, Mark; York, Donald G.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Cunha, Carlos E.; Dilday, Ben; Frieman, Joshua A.; Lampeitl, Hubert; Lima, Marcos; Oyaizu, Hiroaki; Sheldon, Erin] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Dilday, Ben; Lima, Marcos] Univ Chicago, Dept Phys, Chicago, IL 60637 USA. [Doi, Mamoru] Univ Tokyo, Inst Astron, Grad Sch Sci, Tokyo 1810015, Japan. [Friedman, Scott D.] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Fukugita, Masataka] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan. [Gansicke, Boris T.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Glazebrook, Karl] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, VIC 3122, Australia. [Gray, Jim] Microsoft Res, San Francisco, CA 94105 USA. [Grebel, Eva K.] Univ Basel, Astron Inst, Dept Phys & Astron, CH-4102 Binningen, Switzerland. [Grebel, Eva K.] Heidelberg Univ, Astron Rech Inst, Zentrum Astron, D-69120 Heidelberg, Germany. [Gurbani, Vijay K.] Alcatel Lucent, Bell Labs, Lisle, IL 60532 USA. [Hall, Patrick B.] York Univ, Dept Phys & Astron, N York, ON M3J 1P3, Canada. [Harding, Paul; Morrison, Heather L.; Zehavi, Idit] Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA. [Harvanek, Michael] Lowell Observ, Flagstaff, AZ 86001 USA. [Hayes, Jeffrey] Catholic Univ Amer, Inst Astron & Computat Sci, Dept Phys, Washington, DC 20064 USA. [Hindsley, Robert B.] USN, Res Lab, Remote Sensing Div, Washington, DC 20392 USA. [Hirata, Christopher M.; Juric, Mario; Mandelbaum, Rachel] Inst Adv Study, Princeton, NJ 08540 USA. [Ichikawa, Shin-ichi] Natl Astron Observ, Tokyo 1818588, Japan. [Johnson, Jennifer A.; Weinberg, David H.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA. [Jorgensen, Anders M.] New Mexico Inst Min & Technol, Dept Elect Engn, Socorro, NM 87801 USA. [Kessler, R.; Lamb, Donald Q.; York, Donald G.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Kleinman, S. J.; Nitta, Atsuko] Gemini Observ, Hilo, HI 96720 USA. [Krzesinski, Jurek] Akad Pedagogiczna & Krakowie, Obserwatorium Astron Suhorze, PL-30084 Krakow, Poland. [Lepine, Sebastien] Amer Museum Nat Hist, Dept Astrophys, New York, NY 10024 USA. [Loveday, Jon] Univ Sussex, Ctr Astron, Brighton BN1 9QH, E Sussex, England. [Margon, Bruce] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA. [Martinez-Delgado, David] Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain. [Matsubara, Takahiko] Nagoya Univ, Dept Phys & Astrophys, Chikusa Ku, Nagoya, Aichi 4648602, Japan. [McGehee, Peregrine M.] CALTECH, IPAC, Pasadena, CA 91125 USA. [McKay, Timothy A.] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. [Meiksin, Avery] Univ Edinburgh, Inst Astron, SUPA, Royal Observ, Edinburgh EH9 3HJ, Midlothian, Scotland. [Munn, Jeffrey A.; Pier, Jeffrey R.] USN Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA. [Newberg, Heidi Jo] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA. [Nichol, Robert C.] Univ Portsmouth, ICG, Portsmouth PO1 2EG, Hants, England. [Nicinski, Tom] CMC Elect Aurora, Sugar Grove, IL 60554 USA. [Okamura, Sadanori; Shimasaku, Kazu] Univ Tokyo, Grad Sch Sci, Dept Astron & Res Ctr Early Universe, Bunkyo Ku, Tokyo 1130033, Japan. [Padmanabhan, Nikhil; Schlegel, David J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Park, Changbom] Korea Inst Adv Study, Seoul 130722, South Korea. [Pope, Adrian C.; Szapudi, Istvan] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA. [Richards, Gordon T.; Vogeley, Michael S.] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA. [Richmond, Michael W.] Rochester Inst Technol, Dept Phys, Rochester, NY 14623 USA. [Rockosi, Constance M.] Univ Calif Santa Cruz, Univ Calif Observ, Lick Observ, Santa Cruz, CA 95064 USA. [Sako, Masao] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94309 USA. [Schneider, Donald P.; Berk, Daniel E. Vanden] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [Schreiber, Matthias R.] Univ Valparaiso, Dept Fis & Astron, Valparaiso, Chile. [Schwope, Axel D.; Steinmetz, Matthias] Astrophys Inst Potsdam, D-14482 Potsdam, Germany. [Seljak, Uros] Princeton Univ, Joseph Henry Labs, Princeton, NJ 08544 USA. [Seljak, Uros] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland. [Smith, J. Allyn] Austin Peay State Univ, Dept Phys & Astron, Clarksville, TN 37040 USA. [SubbaRao, Mark] Adler Planetarium & Astron Museum, Chicago, IL 60605 USA. [Suto, Yasushi] Univ Tokyo, Grad Sch Sci, Bunkyo Ku, Dept Phys, Tokyo 1130033, Japan. [Suto, Yasushi] Univ Tokyo, Grad Sch Sci, Bunkyo Ku, Res Ctr Early Universe, Tokyo 1130033, Japan. [Tegmark, Max] MIT, Dept Phys, Cambridge, MA 02139 USA. [Uomoto, Alan] Carnegie Inst Washington Observ, Pasadena, CA 91101 USA. [Vidrih, S.; Zucker, Daniel B.] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England. [Voges, Wolfgang] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany. [West, Andrew A.] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [White, Simon D. M.] Max Planck Inst Astrophys, D-85748 Garching, Germany. [Wilhite, Brian C.] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA. RP Adelman-McCarthy, JK (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. RI Lima, Marcos/E-8378-2010; Padmanabhan, Nikhil/A-2094-2012; Gaensicke, Boris/A-9421-2012; Margon, Bruce/B-5913-2012; Csabai, Istvan/F-2455-2012; McKay, Timothy/C-1501-2009; West, Andrew/H-3717-2014; Agueros, Marcel/K-7998-2014; Mandelbaum, Rachel/N-8955-2014; Brinchmann, Jarle/M-2616-2015; Glazebrook, Karl/N-3488-2015; OI Re Fiorentin, Paola/0000-0002-4995-0475; Csabai, Istvan/0000-0001-9232-9898; /0000-0002-1891-3794; Hogg, David/0000-0003-2866-9403; Covey, Kevin/0000-0001-6914-7797; Davenport, James/0000-0002-0637-835X; Bell, Eric/0000-0002-5564-9873; Baldry, Ivan/0000-0003-0719-9385; Tucker, Douglas/0000-0001-7211-5729; Gaensicke, Boris/0000-0002-2761-3005; McKay, Timothy/0000-0001-9036-6150; Agueros, Marcel/0000-0001-7077-3664; Mandelbaum, Rachel/0000-0003-2271-1527; Brinchmann, Jarle/0000-0003-4359-8797; Glazebrook, Karl/0000-0002-3254-9044; Meiksin, Avery/0000-0002-5451-9057 NR 86 TC 1001 Z9 1009 U1 4 U2 70 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0067-0049 EI 1538-4365 J9 ASTROPHYS J SUPPL S JI Astrophys. J. Suppl. Ser. PD APR PY 2008 VL 175 IS 2 BP 297 EP 313 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 327WN UT WOS:000257759300001 ER PT J AU Fogle, M Bahati, EM Bannister, ME Vane, CR Loch, SD Pindzola, MS Ballance, CP Thomas, RD Zhaunerchyk, V Bryans, P Mitthumsiri, W Savin, DW AF Fogle, M. Bahati, E. M. Bannister, M. E. Vane, C. R. Loch, S. D. Pindzola, M. S. Ballance, C. P. Thomas, R. D. Zhaunerchyk, V. Bryans, P. Mitthumsiri, W. Savin, D. W. TI Electron-impact ionization of Be-like CIII, NIV, and OV SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES LA English DT Article DE atomic data; atomic processes; methods : laboratory ID CROSS-SECTION MEASUREMENTS; OPTICALLY THIN PLASMAS; BERYLLIUM-LIKE IONS; SODIUM-LIKE IONS; RATE COEFFICIENTS; R-MATRIX; SINGLE IONIZATION; RECOMMENDED DATA; EXCITED-STATES; ATOMS AB We present recent measurements of absolute electron-impact ionization cross sections for Be-like C III, N IV, and O V forming Li- like C IV, N V, and O VI. The measurements were taken using the crossed-beams apparatus at Oak Ridge National Laboratory. A gas cell beam attenuation method was used to independently measure the metastable fractions present in the ion beams. The measured ionization cross sections were compared with calculations using the R-matrix with pseudostates and distorted-wave theoretical methods. Best agreement is found with the R-matrix with pseudostates cross sections results that account for the metastable fractions inferred from the gas attenuation measurements. We present a set of recommended rate coefficients for electron-impact single ionization from the ground state and metastable term of each ion. C1 [Fogle, M.; Bahati, E. M.; Bannister, M. E.; Vane, C. R.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Loch, S. D.; Pindzola, M. S.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA. [Ballance, C. P.] Rollins Coll, Dept Phys, Winter Pk, FL 32789 USA. [Thomas, R. D.; Zhaunerchyk, V.] Univ Stockholm, Dept Phys, S-10691 Stockholm, Sweden. [Bryans, P.; Mitthumsiri, W.; Savin, D. W.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA. RP Fogle, M (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. EM bannisterme@ornl.gov RI Bryans, Paul/C-9196-2012; Savin, Daniel/B-9576-2012; Zhaunerchyk, Vitali/E-9751-2016 OI Savin, Daniel/0000-0002-1111-6610; NR 68 TC 17 Z9 18 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0067-0049 J9 ASTROPHYS J SUPPL S JI Astrophys. J. Suppl. Ser. PD APR PY 2008 VL 175 IS 2 BP 543 EP 556 DI 10.1086/525256 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 327WN UT WOS:000257759300011 ER PT J AU Prats, N Cachorro, VE Sorribas, M Mogo, S Berjon, A Toledano, C De Frutos, AM de la Rosa, J Laulainen, N de la Morena, BA AF Prats, N. Cachorro, V. E. Sorribas, M. Mogo, S. Berjon, A. Toledano, C. de Frutos, A. M. de la Rosa, J. Laulainen, N. de la Morena, B. A. TI Columnar aerosol optical properties during "El Arenosillo 2004 summer campaign" SO ATMOSPHERIC ENVIRONMENT LA English DT Article; Proceedings Paper CT Conference on Visibility, Aerosols, and Atmospheric Optics CY SEP 03-06, 2006 CL Vienna, AUSTRIA DE aerosol particles; columnar optical properties; aerosol optical depth; AERONET ID DEPTH; SPAIN; CLIMATOLOGY; RETRIEVAL; AERONET; NETWORK AB A detailed analysis of the columnar optical aerosol properties has been carried out for data collected during the "El Arenosillo 2004 summer campaign". These data are derived from a Cimel sun-photometer, as part of the PHOTONS-AERONET network at the El Arenosillo site in south-western Spain, over the period 1 June to 31 October 2004. Version 1 AERONET inversion products are used in the analysis. The aim of this campaign was to obtain a more complete set of data on aerosol particle microphysical, optical/radiative, absorbing and chemical properties for use in closure studies. In this paper we focus on the characterization of the aerosol optical depth (AOD)-alpha coefficients, and the particle size distribution together with their associated microphysical parameters, such as volume concentration, effective radius, etc., in order to define the features and ranges of these physical parameters associated with both fine and coarse particle modes. The requirement of high AOD values for using the inversion technique puts significant constraints on the estimation of the single scattering albedo (SSA) and refractive index, and thus requires great care in the analysis. As a result, only the characterizations of these parameters for desert dust events are considered reliable. Moreover, summer 2004 had the most frequent desert dust intrusions, including the most intense event (22-28 July and 31 July-2 August) ever recorded at the El Arenosillo site since the start of the measurements in February 2000. We summarize the results for the intensive summer campaign in terms of the range of values of the physical and optical parameters of the different aerosol types present in this area of Spain. (C) 2007 Elsevier Ltd. All rights reserved. C1 [Prats, N.; Cachorro, V. E.; Sorribas, M.; Mogo, S.; Berjon, A.; Toledano, C.; de Frutos, A. M.] Univ Valladolid, Grp Opt Atmosfer GOA UVA, E-47071 Valladolid, Spain. [Sorribas, M.; de la Morena, B. A.] INTA, Dept Observac Tierra Teledetecc & Atmosfera, ESAt El Arenosillo Estac Sondeos Atmosfer, Mazagon Huelva, Spain. [Mogo, S.] Univ Beira Interior, Dept Fis, P-6200 Covilha, Portugal. [de la Rosa, J.] Univ Huelva, Dept Geol, Huelva 21071, Spain. [Laulainen, N.] Pacific NW Natl Lab, Div Atmospher Sci & Global Change, Richland, WA 99352 USA. RP Cachorro, VE (reprint author), Univ Valladolid, Grp Opt Atmosfer GOA UVA, E-47071 Valladolid, Spain. EM prats@goa.uva.es; chiqui@goa.uva.es; sorribasmm@inta.es; smogo@dfisica.ubi.pt; alberto@goa.uva.es; toledano@goa.uva.es; angel@goa.uva.es; jesus@uhu.es; nels.laulainen@pnl.gov; morenacb@inta.es RI Mogo, Sandra/B-6967-2008; Sorribas, Mar/B-8059-2012; Toledano, Carlos/J-3672-2012; de la Rosa, Jesus Damian/C-9385-2011; Berjon, Alberto/M-4203-2015 OI Mogo, Sandra/0000-0002-1423-2668; Cachorro, Victoria/0000-0002-4627-9444; Sorribas, Mar/0000-0003-2131-9021; Toledano, Carlos/0000-0002-6890-6648; de la Rosa, Jesus Damian/0000-0001-6644-8754; Berjon, Alberto/0000-0002-4508-7037 NR 23 TC 20 Z9 20 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 EI 1873-2844 J9 ATMOS ENVIRON JI Atmos. Environ. PD APR PY 2008 VL 42 IS 11 BP 2643 EP 2653 DI 10.1016/j.atmosenv.2007.07.041 PG 11 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 315IU UT WOS:000256872800009 ER PT J AU Brooks, S Arimoto, R Lindberg, S Southworth, G AF Brooks, Steven Arimoto, Richard Lindberg, Steven Southworth, George TI Antarctic polar plateau snow surface conversion of deposited oxidized mercury to gaseous elemental mercury with fractional long-term burial SO ATMOSPHERIC ENVIRONMENT LA English DT Article DE Antarctica; mercury; snow ID AEROSOLS AB The role of the vast Antarctic polar plateau in the global mercury cycle was previously relatively unknown. Here, for the first time, mercury concentrations in snow and air, combined with vertical flux measurements at the South Pole (November-December 2003 and November 2005) have provided considerable insight into the cycling of this element through the Antarctic environment. These insights include observations showing atmospheric oxidized mercury depositing to the snow pack, subsequent photoreduction, and emissions of gaseous elemental mercury from the snow pack. Oxidized mercury (e.g., reactive gaseous mercury and fine particulate mercury) showed high concentrations (100-1000 pg m(-3)) in the near-surface air, with these concentrations strongly correlated with vertical mixing rates and showing rapid surface deposition. This suggests that the troposphere over Antarctica is enhanced in oxidized mercury, with mercury cycling between elemental and oxidized states, and between the atmosphere and snow pack. Based on these limited measurements at South Pole, we estimate that the Antarctic polar plateau could sequester as much as 60 metric tons of Hg annually. These data also suggest that there could be a seasonal cycling of atmospheric mercury oxidation, deposition, and re-emission via photoreduction of 490 metric tons annually. This cycling is restricted to the annual sunlit period and peaks 3-4 weeks after solar maximum. To our knowledge, these provisional values represent the first estimates of the mercury balance and cycling for the extensive Antarctic polar plateau. (C) 2007 Elsevier Ltd. All rights reserved. C1 [Brooks, Steven] NOAA, Atmospher Turbulence & Diffus Div, Oak Ridge, TN USA. [Arimoto, Richard] New Mexico State Univ, Las Cruces, NM 88003 USA. [Lindberg, Steven] Oak Ridge Natl Lab, Div Environm Sci, Emeritus, TN USA. [Southworth, George] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN USA. RP Brooks, S (reprint author), NOAA, Atmospher Turbulence & Diffus Div, Oak Ridge, TN USA. EM Steve.brooks@noaa.gov NR 19 TC 36 Z9 38 U1 1 U2 20 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 J9 ATMOS ENVIRON JI Atmos. Environ. PD APR PY 2008 VL 42 IS 12 BP 2877 EP 2884 DI 10.1016/j.atmosenv.2007.05.029 PG 8 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 314YS UT WOS:000256845700011 ER PT J AU Brooks, S Lindberg, S Southworth, G Arimoto, R AF Brooks, Steven Lindberg, Steven Southworth, George Arimoto, Richard TI Springtime atmospheric mercury speciation in the McMurdo, Antarctica coastal region SO ATMOSPHERIC ENVIRONMENT LA English DT Article DE Antarctica; mercury; snow; halogens; bromine ID REACTIVE GASEOUS MERCURY; DEPLETION; SNOW; TROPOSPHERE; ICE AB This paper describes springtime atmospheric mercury (Hg) speciation and snow pack mercury concentration measurements in the McMurdo/Ross Island sea ice region of Antarctica. Near-surface gaseous elemental mercury (GEM) depletions (to concentrations below our detection limit, < 0.01 ng m(-3)), similar to those shown to occur in the springtime Arctic, were observed and reactive gaseous mercury (RGM) and fine particulate mercury (FPM) were produced in significant quantities (average 116 and 49 pg(Hg) m(-3), respectively). GEM concentrations in the near-surface air were significantly enhanced during brief afternoon terrestrial snowmelt events. Snow pack total mercury was significantly elevated (40-430 ng l(-1)), with a maximum at the northern extent of the fast-ice (adjacent to the grease ice/freezing ocean surface), and lesser values towards the coast and on Ross Island, suggesting that, similarly again to recent Arctic results, marine halogens, released by the freezing sea surface, induce localized mercury depletion events. A possible secondary contributing source of local halogens and mercury are direct emissions from the active Ross Island volcano, Mt. Erebus. (C) 2007 Elsevier Ltd. All rights reserved. C1 [Brooks, Steven] NOAA, Atmospher Turbulence & Diffus Div, Oak Ridge, TN 37830 USA. [Lindberg, Steven] Oak Ridge Natl Lab, Div Environm Sci, Emeritus, TN USA. [Southworth, George] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN USA. [Arimoto, Richard] New Mexico State Univ, Las Cruces, NM 88003 USA. RP Brooks, S (reprint author), NOAA, Atmospher Turbulence & Diffus Div, 456 S Illinois Ave,POB 2456, Oak Ridge, TN 37830 USA. EM steve.brooks@noaa.gov NR 28 TC 33 Z9 35 U1 0 U2 11 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 EI 1873-2844 J9 ATMOS ENVIRON JI Atmos. Environ. PD APR PY 2008 VL 42 IS 12 BP 2885 EP 2893 DI 10.1016/j.atmosenv.2007.06.038 PG 9 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 314YS UT WOS:000256845700012 ER PT J AU Prueger, JH Eichinger, WE Hipps, LE Hatfield, JL Cooper, DI AF Prueger, J. H. Eichinger, W. E. Hipps, L. E. Hatfield, J. L. Cooper, D. I. TI Air-flow distortion and turbulence statistics near an animal facility SO ATMOSPHERIC ENVIRONMENT LA English DT Article; Proceedings Paper CT 1st Workshop on Agricultural Air Quality - State of the Science CY JUN 04-08, 2006 CL Potomac, MD DE turbulence; transport; boundary layer; CAFO AB The emission and dispersion of particulates and gases from concentrated animal feeding operations (CAFO) at local to regional scales is a current issue in science and society. The transport of particulates, odors and toxic chemical species from the source into the local and eventually regional atmosphere is largely determined by turbulence. Any models that attempt to simulate the dispersion of particles must either specify or assume various statistical properties of the turbulence field. Statistical properties of turbulence are well documented for idealized boundary layers above uniform surfaces. However, an animal production facility is a complex surface with structures that act as bluff bodies that distort the turbulence intensity near the buildings. As a result, the initial release and subsequent dispersion of effluents in the region near a facility will be affected by the complex nature of the surface. Previous Lidar studies of plume dispersion over the facility used in this study indicated that plumes move in complex yet organized patterns that would not be explained by the properties of turbulence generally assumed in models. The objective of this study was to characterize the near-surface turbulence statistics in the flow field around an array of animal confinement buildings. Eddy covariance towers were erected in the upwind, within the building array and downwind regions of the flow field. Substantial changes in turbulence intensity statistics and turbulence-kinetic energy (TKE) were observed as the mean wind flow encountered the building structures. Spectra analysis demonstrated unique distribution of the spectral energy in the vertical profile above the buildings. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Prueger, J. H.; Hatfield, J. L.] USDA ARS, Natl Soil Tilth Lab, Ames, IA 50011 USA. [Eichinger, W. E.] Univ Iowa, Dept Civil & Environm Engn, Iowa City, IA 52242 USA. [Hipps, L. E.] Utah State Univ, Dept Plants Soils & Climate, Logan, UT 84322 USA. [Cooper, D. I.] Los Alamos Natl Lab, Los Alamos, NM USA. RP Prueger, JH (reprint author), USDA ARS, Natl Soil Tilth Lab, 2150 Pammel Dr, Ames, IA 50011 USA. EM prueger@nstl.gov OI Hipps, Lawrence/0000-0002-7658-8571 NR 12 TC 8 Z9 9 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 J9 ATMOS ENVIRON JI Atmos. Environ. PD APR PY 2008 VL 42 IS 14 BP 3301 EP 3314 DI 10.1016/j.atmosenv.2007.08.048 PG 14 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 310WI UT WOS:000256561100009 ER PT J AU Kozlov, G Maattanen, P Schrag, JD Hura, GL Gabrielli, L Cygler, M Thomas, DY Gehring, K AF Kozlov, G. Maattanen, P. Schrag, J. D. Hura, G. L. Gabrielli, L. Cygler, M. Thomas, D. Y. Gehring, K. TI Structural studies of the protein disulfide isomerase ERp72 SO BIOCHEMISTRY AND CELL BIOLOGY-BIOCHIMIE ET BIOLOGIE CELLULAIRE LA English DT Meeting Abstract C1 McGill Univ, Dept Biochem, Montreal, PQ, Canada. NRCC, Biotechnol Res Inst, Montreal, PQ, Canada. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Gehring, Kalle/I-4403-2013 OI Gehring, Kalle/0000-0001-6500-1184 NR 0 TC 0 Z9 0 U1 0 U2 0 PU NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS PI OTTAWA PA BUILDING M 55, OTTAWA, ON K1A 0R6, CANADA SN 0829-8211 J9 BIOCHEM CELL BIOL JI Biochem. Cell Biol. PD APR PY 2008 VL 86 IS 2 BP 209 EP 209 PG 1 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 287YE UT WOS:000254952600065 ER PT J AU Zhang, B Park, BH Karpinets, T Samatova, NF AF Zhang, Bing Park, Byung-Hoon Karpinets, Tatiana Samatova, Nagiza F. TI From pull-down data to protein interaction networks and complexes with biological relevance SO BIOINFORMATICS LA English DT Article ID YEAST V-ATPASE; SACCHAROMYCES-CEREVISIAE; GENE ONTOLOGY; SHOTGUN PROTEOMICS; MODULES; CELL; SETS AB Motivation: Recent improvements in high-throughput Mass Spectrometry (MS) technology have expedited genome-wide discovery of proteinprotein interactions by providing a capability of detecting protein complexes in a physiological setting. Computational inference of protein interaction networks and protein complexes from MS data are challenging. Advances are required in developing robust and seamlessly integrated procedures for assessment of proteinprotein interaction affinities, mathematical representation of protein interaction networks, discovery of protein complexes and evaluation of their biological relevance. Results: A multi-step but easy-to-follow framework for identifying protein complexes from MS pull-down data is introduced. It assesses interaction affinity between two proteins based on similarity of their co-purification patterns derived from MS data. It constructs a protein interaction network by adopting a knowledge-guided threshold selection method. Based on the network, it identifies protein complexes and infers their core components using a graph-theoretical approach. It deploys a statistical evaluation procedure to assess biological relevance of each found complex. On Saccharomyces cerevisiae pull-down data, the framework outperformed other more complicated schemes by at least 10 in F(1)-measure and identified 610 protein complexes with high-functional homogeneity based on the enrichment in Gene Ontology (GO) annotation. Manual examination of the complexes brought forward the hypotheses on cause of false identifications. Namely, co-purification of different protein complexes as mediated by a common non-protein molecule, such as DNA, might be a source of false positives. Protein identification bias in pull-down technology, such as the hydrophilic bias could result in false negatives. C1 [Zhang, Bing; Park, Byung-Hoon; Karpinets, Tatiana] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. [Samatova, Nagiza F.] N Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. RP Samatova, NF (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. NR 36 TC 69 Z9 71 U1 1 U2 20 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 1367-4803 J9 BIOINFORMATICS JI Bioinformatics PD APR 1 PY 2008 VL 24 IS 7 BP 979 EP 986 DI 10.1093/bioinformatics/btn036 PG 8 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Computer Science, Interdisciplinary Applications; Mathematical & Computational Biology; Statistics & Probability SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Computer Science; Mathematical & Computational Biology; Mathematics GA 281BJ UT WOS:000254470900013 PM 18304937 ER PT J AU Mayampurath, AM Jaitly, N Purvine, SO Monroe, ME Auberry, KJ Adkins, JN Smith, RD AF Mayampurath, Anoop M. Jaitly, Navdeep Purvine, Samuel O. Monroe, Matthew E. Auberry, Kenneth J. Adkins, Joshua N. Smith, Richard D. TI DeconMSn: a software tool for accurate parent ion monoisotopic mass determination for tandem mass spectra SO BIOINFORMATICS LA English DT Article AB DeconMSn accurately determines the monoisotopic mass and charge state of parent ions from high-resolution tandem mass spectrometry data, offering significant improvement for LTQ_FT and LTQ_Orbitrap instruments over the commercially delivered Thermo Fisher Scientifics extract_msn tool. Optimal parent ion mass tolerance values can be determined using accurate mass information, thus improving peptide identifications for high-mass measurement accuracy experiments. For low-resolution data from LCQ and LTQ instruments, DeconMSn incorporates a support-vector-machine-based charge detection algorithm that identifies the most likely charge of a parent species through peak characteristics of its fragmentation pattern. C1 [Mayampurath, Anoop M.; Jaitly, Navdeep; Purvine, Samuel O.; Monroe, Matthew E.; Auberry, Kenneth J.; Adkins, Joshua N.; Smith, Richard D.] Pacific NW Natl Lab, Richland, WA 99354 USA. RP Smith, RD (reprint author), Pacific NW Natl Lab, Richland, WA 99354 USA. RI Smith, Richard/J-3664-2012; Adkins, Joshua/B-9881-2013 OI Smith, Richard/0000-0002-2381-2349; Adkins, Joshua/0000-0003-0399-0700 FU NCRR NIH HHS [P41 RR018522-05, P41 RR018522, RR018522]; NIAID NIH HHS [Y1-AI-4894-01] NR 6 TC 85 Z9 85 U1 2 U2 6 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 1367-4803 J9 BIOINFORMATICS JI Bioinformatics PD APR 1 PY 2008 VL 24 IS 7 BP 1021 EP 1023 DI 10.1093/bioinformatics/btn063 PG 3 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Computer Science, Interdisciplinary Applications; Mathematical & Computational Biology; Statistics & Probability SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Computer Science; Mathematical & Computational Biology; Mathematics GA 281BJ UT WOS:000254470900021 PM 18304935 ER PT J AU Todd, BD Rothermel, BB Reed, RN Luhring, TM Schlatter, K Trenkamp, L Gibbons, JW AF Todd, Brian D. Rothermel, Betsie B. Reed, Robert N. Luhring, Thomas M. Schlatter, Karen Trenkamp, Lester Gibbons, J. Whitfield TI Habitat alteration increases invasive fire ant abundance to the detriment of amphibians and reptiles SO BIOLOGICAL INVASIONS LA English DT Article DE Ambystoma; clearcutting; cover boards; forest management; mole salamander; Solenopsis invicta ID SOLENOPSIS-INVICTA; HYMENOPTERA; FORMICIDAE; ALLIGATORS; MOVEMENTS; WILDLIFE; TOAD AB Altered habitats have been suggested to facilitate red imported fire ant (Solenopsis invicta) colonization and dispersal, possibly compounding effects of habitat alteration on native wildlife. In this study, we compared colonization intensity of wood cover boards by S. invicta among four forest management treatments in South Carolina, USA: an unharvested control (> 30 years old); a partially thinned stand; a clearcut with coarse woody debris retained; and a clearcut with coarse woody debris removed. Additionally, we compared dehydration rates and survival of recently metamorphosed salamanders (marbled salamanders, Ambystoma opacum, and mole salamanders, A. talpoideum) among treatments. We found that the number of wood cover boards colonized by S. invicta differed significantly among treatments, being lowest in the unharvested forest treatments and increasing with the degree of habitat alteration. Salamanders that were maintained in experimental field enclosures to study water loss were unexpectedly subjected to high levels of S. invicta predation that differed among forest treatments. All known predation by S. invicta was restricted to salamanders in clearcuts. The amount of vegetative ground cover was inversely related to the likelihood of S. invicta predation of salamanders. Our results show that S. invicta abundance increases with habitat disturbance and that this increased abundance has negative consequences for amphibians that remain in altered habitats. Our findings also suggest that the presence of invasive S. invicta may compromise the utility of cover boards and other techniques commonly used in herpetological studies in the Southeast. C1 [Todd, Brian D.; Rothermel, Betsie B.; Luhring, Thomas M.; Schlatter, Karen; Gibbons, J. Whitfield] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. [Reed, Robert N.] USGS Ft Collins Sci Ctr, Ft Collins, CO 80526 USA. [Trenkamp, Lester] So Utah Univ, Dept Biol, Cedar City, UT 84720 USA. RP Todd, BD (reprint author), Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. EM todd@sre1.edu RI Luhring, Thomas/A-9489-2012; Rothermel, Betsie/L-6774-2013 OI Luhring, Thomas/0000-0001-7982-5862; NR 29 TC 27 Z9 29 U1 3 U2 40 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1387-3547 J9 BIOL INVASIONS JI Biol. Invasions PD APR PY 2008 VL 10 IS 4 BP 539 EP 546 DI 10.1007/s10530-007-9150-9 PG 8 WC Biodiversity Conservation; Ecology SC Biodiversity & Conservation; Environmental Sciences & Ecology GA 275QO UT WOS:000254086900013 ER PT J AU Koester, KJ Ager, JW Ritchie, RO AF Koester, Kurt J. Ager, Joel W., III Ritchie, Robert O. TI The effect of aging on crack-growth resistance and toughening mechanisms in human dentin SO BIOMATERIALS LA English DT Article DE human dentin; aging; fracture mechanics; resistance curves; toughness; In situ electron microscopy ID FRACTURE; FATIGUE; BEHAVIOR; AGE; ORIENTATION; TOUGHNESS; HYDRATION AB Crack-growth experiments in human dentin have been performed in situ in an environmental scanning electron microscope to measure, for the first time, the crack-growth resistance curve (R-curve) for clinically relevant (< 250 mu m) crack extensions and to simultaneously identify the salient toughening mechanisms. "Young" dentin from donors 19-30 years in age and "aged" dentin from donors 40-70 years in age were evaluated. The "young" group had 0-4% of its tubules filled with apatite; the "aged" group was subdivided into "opaque" with 12-32% filled tubules and "transparent" with 65-100% filled tubules. Although crack-initiation toughnesses were similar, the crack-growth resistance of "young" dentin was higher by about 40% compared to "aged" dentin. Mechanistically, this behavior is interpreted in terms of three phenomena: (i) gross crack deflection of the growing crack, (ii) microcracks which initiated at unfilled tubules in the high stress region in the vicinity of a propagating crack (no microcracks formed at filled tubules), and (iii) crack propagation which followed a local trajectory through unfilled tubules and deflected around filled tubules. The higher toughness of the "young" dentin was related to enhanced microcracking (at unfilled tubules) ahead of the growing crack, which (i) shields the crack by activating multiple crack tips and by reducing the local stress intensity through crack deflection and (ii) leads to the formation of crack bridges from "uncracked ligaments" due to the incomplete coalescence of these microcracks with the main crack tip. With age, the role of these toughening mechanisms was diminished primarily to the lower fraction of unfilled, and hence microcracked, tubules. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Koester, Kurt J.; Ager, Joel W., III; Ritchie, Robert O.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Koester, Kurt J.; Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. RP Ritchie, RO (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM roritchie@lbl.gov RI Ritchie, Robert/A-8066-2008; OI Ritchie, Robert/0000-0002-0501-6998; Ager, Joel/0000-0001-9334-9751 FU NIDCR NIH HHS [P01DE09859] NR 24 TC 50 Z9 53 U1 0 U2 13 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0142-9612 J9 BIOMATERIALS JI Biomaterials PD APR PY 2008 VL 29 IS 10 BP 1318 EP 1328 DI 10.1016/j.biomaterials.2007.12.008 PG 11 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 266BM UT WOS:000253406300004 PM 18164757 ER PT J AU Whitelam, S Pronk, S Geissler, PL AF Whitelam, Stephen Pronk, Sander Geissler, Phillip L. TI There and (Slowly) back again: Entropy-driven hysteresis in a model of DNA overstretching SO BIOPHYSICAL JOURNAL LA English DT Article ID SINGLE DNA; PHASE TRANSITION; MOLECULES; DENATURATION; MECHANICS; THERMODYNAMICS; SEQUENCE; TENSION; CHAINS; HELIX AB When pulled along its axis, double-stranded DNA elongates abruptly at a force of similar to 65 pN. Two physical pictures have been developed to describe this overstretched state. The first proposes that strong forces induce a phase transition to a molten state consisting of unhybridized single strands. The second picture introduces an elongated hybridized phase called S-DNA. Little thermodynamic evidence exists to discriminate directly between these competing pictures. Here we show that within a microscopic model of DNA we can distinguish between the dynamics associated with each. In experiment, considerable hysteresis in a cycle of stretching and shortening develops as temperature is increased. Since there are few possible causes of hysteresis in a system whose extent is appreciable in only one dimension, such behavior offers a discriminating test of the two pictures of overstretching. Most experiments are performed upon nicked DNA, permitting the detachment (unpeeling) of strands. We show that the long-wavelength progression of the unpeeled front generates hysteresis, the character of which agrees with experiment only if we assume the existence of S-DNA. We also show that internal melting can generate hysteresis, the degree of which depends upon the nonextensive loop entropy of single-stranded DNA. C1 [Whitelam, Stephen; Pronk, Sander; Geissler, Phillip L.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Whitelam, Stephen; Pronk, Sander; Geissler, Phillip L.] Lawrence Berkeley Natl Lab, Phys Biosci Lab, Berkeley, CA USA. [Whitelam, Stephen; Pronk, Sander; Geissler, Phillip L.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA USA. RP Whitelam, S (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM s.b.whitelam@warwick.ac.uk NR 31 TC 37 Z9 37 U1 1 U2 5 PU BIOPHYSICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD APR 1 PY 2008 VL 94 IS 7 BP 2452 EP 2469 DI 10.1529/biophysj.107.117036 PG 18 WC Biophysics SC Biophysics GA 275MM UT WOS:000254076300007 PM 17981894 ER PT J AU Blanchette, CD Lin, WC Orme, CA Ratto, TV Longo, ML AF Blanchette, Craig D. Lin, Wan-Chen Orme, Christine A. Ratto, Timothy V. Longo, Marjorie L. TI Domain nucleation rates and interfacial line tensions in supported bilayers of ternary mixtures containing galactosylceramide SO BIOPHYSICAL JOURNAL LA English DT Article ID LIPID-BILAYERS; PHASE-BEHAVIOR; FLUORESCENCE MICROSCOPY; CELL-SURFACE; CHOLESTEROL; MICROSTRUCTURE; SPECTROSCOPY; MEMBRANES; DIAGRAM; MODELS AB Domains within the plane of the plasma membrane, referred to as membrane rafts, have been a topic of considerable interest in the field of membrane biophysics. Although model membrane systems have been used extensively to study lipid phase behavior as it relates to the existence of rafts, very little work has focused on either the initial stage of lipid domain nucleation, or the relevant physical parameters such as temperature and interfacial line tension which control nucleation. In this work, we utilize a method in which the kinetic process of lipid domain nucleation is imaged by atomic force microscopy and modeled using classical theory of nucleation to map interfacial line tension in ternary lipid mixtures. These mixtures consist of a fluid phase lipid component (1,2-dilauroyi-sn-glycero-3-phosphocholine, 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine, or 1,2-dioleoyl-sn-glycero-3-phosphocholine), a solid phase component (galactosylceramide), and cholesterol. Interfacial line tension measurements of galactosylceramide-rich domains track with our previously measured area/perimeter ratios and height mismatches measured here. Line tension also follows known trends in cholesterol interactions and partitioning, as we observed previously with area/perimeter ratios. Our line tension measurements are discussed in combination with recent line tension measurements to address line tension regulation by cholesterol and the dynamic nature of membrane rafts. C1 [Longo, Marjorie L.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. [Blanchette, Craig D.; Lin, Wan-Chen] Coll Biol Sci, Biophys Grad Grp, Livermore, CA USA. [Blanchette, Craig D.; Orme, Christine A.; Ratto, Timothy V.] Lawrence Livermore Natl Lab, Biophys & Interfacial Sci Grp, Livermore, CA USA. RP Longo, ML (reprint author), Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. EM milongo@ucdavis.edu RI Lin, Wan-Chen/A-4348-2009; Orme, Christine/A-4109-2009 FU NIGMS NIH HHS [T32 GM008799] NR 37 TC 32 Z9 32 U1 4 U2 12 PU BIOPHYSICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD APR 1 PY 2008 VL 94 IS 7 BP 2691 EP 2697 DI 10.1529/biophysj.107.122572 PG 7 WC Biophysics SC Biophysics GA 275MM UT WOS:000254076300026 PM 18065459 ER PT J AU Stanley, C Krueger, S Parsegian, VA Rau, DC AF Stanley, Christopher Krueger, Susan Parsegian, V. Adrian Rau, Donald C. TI Protein structure and hydration probed by SANS and osmotic stress SO BIOPHYSICAL JOURNAL LA English DT Article ID ANGLE NEUTRON-SCATTERING; PREFERENTIAL HYDRATION; GUANYLATE KINASE; SUBSTRATE-BINDING; WATER; EXCLUSION; DNA; STABILITY; POLYMERS; FORCES AB Interactions governing protein folding, stability, recognition, and activity are mediated by hydration. Here, we use small-angle neutron scattering coupled with osmotic stress to investigate the hydration of two proteins, lysozyme and guanylate kinase (GK), in the presence of solutes. By taking advantage of the neutron contrast variation that occurs upon addition of these solutes, the number of protein-associated (solute-excluded) water molecules can be estimated from changes in both the zero-angle scattering intensity and the radius of gyration. Poly(ethylene glycol) exclusion varies with molecular weight. This sensitivity can be exploited to probe structural features such as the large internal GK cavity. For GK, small-angle neutron scattering is complemented by isothermal titration calorimetry with osmotic stress to also measure hydration changes accompanying ligand binding. These results provide a framework for studying other biomolecular systems and assemblies using neutron scattering together with osmotic stress. C1 [Stanley, Christopher; Krueger, Susan] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA. [Stanley, Christopher; Parsegian, V. Adrian; Rau, Donald C.] NICHHD, Lab Phys & Struct Biol, Natl Inst Hlth, Bethesda, MD 20892 USA. RP Stanley, C (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. EM stanleycb@ornl.gov OI Stanley, Christopher/0000-0002-4226-7710 FU Intramural NIH HHS NR 50 TC 16 Z9 16 U1 2 U2 19 PU BIOPHYSICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD APR 1 PY 2008 VL 94 IS 7 BP 2777 EP 2789 DI 10.1529/biophysj.107.122697 PG 13 WC Biophysics SC Biophysics GA 275MM UT WOS:000254076300034 PM 18178651 ER PT J AU Bisoffi, M Hjelle, B Brown, DC Branch, DW Edwards, TL Brozik, SM Bondu-Hawkins, VS Larson, RS AF Bisoffi, M. Hjelle, B. Brown, D. C. Branch, D. W. Edwards, T. L. Brozik, S. M. Bondu-Hawkins, V. S. Larson, R. S. TI Detection of viral bioagents using a shear horizontal surface acoustic wave biosensor SO BIOSENSORS & BIOELECTRONICS LA English DT Article DE SAW; biosensor; antibody; virus; category A bioagent; hantavirus ID BACTERIA; AGENTS AB Viruses are of high medical and biodefense concern and their detection at concentrations well below the threshold necessary to cause health hazards continues to be a challenge with respect to sensitivity, specificity, and selectivity. Ideally, assays for accurate and real time detection of viral agents would not necessitate any pre-processing of the analyte, which would make them applicable for example to bodily fluids (blood, sputum) and man-made as well as naturally occurring bodies of water (pools, rivers). We describe herein a robust biosensor that combines the sensitivity of surface acoustic waves (SAW) generated at a frequency of 325 MHz with the specificity provided by antibodies for the detection of viral agents. A lithium tantalate-based SAW transducer with silicon dioxide waveguide sensor platform featuring three test and one reference delay lines was used to adsorb antibodies directed against either Coxsackie virus 134 or the category A bioagent Sin Nombre virus (SNV), a member of the genus Hantavirus, family Bunyaviridae, negative-stranded RNA viruses. Rapid detection (within seconds) of increasing concentrations of viral particles was linear over a range of order of magnitude for both viruses, although the sensor was approximately 5 x 10(5)-fold more sensitive for the detection of SNV. For both pathogens, the sensor's selectivity for its target was not compromised by the presence of confounding Herpes Simplex. virus type 1. The biosensor was able to detect SNV at doses lower than the load of virus typically found in a human patient suffering from hantavirus cardiopulmonary syndrome (HCPS). Further, in a proof-of-principle real world application, the SAW biosensor was capable to selectively detect SNV agents in complex solutions, such as naturally occurring bodies of water (river, sewage effluent) without analyte pre-processing. This is the first study that reports on the detection of viral agents using an antibody-based SAW biosensor that has the potential to be used as a hand-held and self-contained device for rapid viral detection in the field. (C) 2007 Elsevier B.V. All rights reserved. C1 [Bisoffi, M.] Univ New Mexico, Sch Med, Dept Biochem & Mol Biol, Albuquerque, NM 87131 USA. [Hjelle, B.; Brown, D. C.; Bondu-Hawkins, V. S.; Larson, R. S.] Univ New Mexico, Sch Med, Dept Pathol, Albuquerque, NM 87131 USA. [Branch, D. W.; Edwards, T. L.; Brozik, S. M.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Bisoffi, M (reprint author), Univ New Mexico, Sch Med, Dept Biochem & Mol Biol, MSC08 4670,1 Univ New Mexico, Albuquerque, NM 87131 USA. EM mbisoffi@salud.unm.edu FU NIAID NIH HHS [UO1 AI054779, UO1 AI56618] NR 16 TC 34 Z9 37 U1 2 U2 18 PU ELSEVIER ADVANCED TECHNOLOGY PI OXFORD PA OXFORD FULFILLMENT CENTRE THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0956-5663 J9 BIOSENS BIOELECTRON JI Biosens. Bioelectron. PD APR PY 2008 VL 23 IS 9 BP 1397 EP 1403 DI 10.1016/j.bios.2007.12.016 PG 7 WC Biophysics; Biotechnology & Applied Microbiology; Chemistry, Analytical; Electrochemistry; Nanoscience & Nanotechnology SC Biophysics; Biotechnology & Applied Microbiology; Chemistry; Electrochemistry; Science & Technology - Other Topics GA 291WD UT WOS:000255226900012 PM 18262781 ER PT J AU Newsom, R Calhoun, R Ligon, D Allwine, J AF Newsom, Rob Calhoun, Ron Ligon, David Allwine, Jerry TI Linearly organized turbulence structures observed over a suburban area by dual-Doppler lidar SO BOUNDARY-LAYER METEOROLOGY LA English DT Article DE coherent structures; Doppler lidar; horizontal winds; integral length scale; urban flow ID PLANETARY BOUNDARY-LAYER; ATMOSPHERIC SURFACE-LAYER; COHERENT STRUCTURES; FLOW; DYNAMICS; CASES-99; WIND AB Dual-Doppler lidar observations are used to investigate the structure and evolution of surface-layer flow over a suburban area. The observations were made during the Joint Urban 2003 (JU2003) field experiment in Oklahoma City, U.S.A. in the summer of 2003. This study focuses specifically on a 10-h sequence of scan data beginning shortly after noon local time on 7 July 2003. During this period two coherent Doppler lidars performed overlapping low elevation angle sector scans upwind and south of Oklahoma City's central business district. Radial velocity data from the two lidars are processed to reveal the structure and evolution of the horizontal velocity field in the surface layer throughout the afternoon and during the evening transition period. The retrieved velocity fields clearly show a tendency for turbulence structures to be elongated in the direction of the mean flow throughout the entire 10-h study period. In order to quantify the observed anisotropy and its dependence on stability, integral length scales are estimated directly from the spatially resolved velocity retrievals. As the flow became more stably stratified the characteristic cross-stream dimension of the linear structures decreased. The streamwise component was consistently more anisotropic than the cross-stream component, and both velocity components exhibited maximum anisotropy under neutral conditions. The ratio of the streamwise to cross-stream length scale was estimated to be about eight for the streamwise component, and four for the cross-stream component under neutral conditions. C1 [Newsom, Rob; Allwine, Jerry] Pacific NW Natl Lab, Richland, WA 99352 USA. [Calhoun, Ron] Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA. [Ligon, David] USA, Res Lab, Adelphi, MD USA. RP Newsom, R (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM rob.newsom@pnl.gov NR 35 TC 36 Z9 36 U1 0 U2 13 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0006-8314 J9 BOUND-LAY METEOROL JI Bound.-Layer Meteor. PD APR PY 2008 VL 127 IS 1 BP 111 EP 130 DI 10.1007/s10546-007-9243-0 PG 20 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 267QN UT WOS:000253524400007 ER PT J AU Crawley, DB Hand, JW Kurnmert, M Griffith, BT AF Crawley, Drury B. Hand, Jon W. Kurnmert, Michal Griffith, Brent T. TI Contrasting the capabilities of building energy performance simulation programs SO BUILDING AND ENVIRONMENT LA English DT Article AB For the past 50 years, a wide variety of building energy simulation programs have been developed, enhanced and are in use throughout the building energy community. This paper is an overview of a report, which provides up-to-date comparison of the features and capabilities of twenty major building energy simulation programs. The comparison is based on information provided by the program developers in the following categories: general modeling features; zone loads; building envelope and daylighting and solar; infiltration, ventilation and multizone airflow; renewable energy systems; electrical systems and equipment; HVAC systems; HVAC equipment; environmental emissions; economic evaluation; climate data availability, results reporting; validation; and user interface, links to other programs, and availability. (C) 2006 Elsevier Ltd. All rights reserved. C1 [Crawley, Drury B.] US DOE, Washington, DC 20585 USA. [Hand, Jon W.] Univ Strathclyde, Energy Syst Res Unit, Glasgow, Lanark, Scotland. [Kurnmert, Michal] Univ Wisconsin, Solar Energy Lab, Madison, WI USA. [Griffith, Brent T.] Natl Renewable Energy Lab, Golden, CO USA. RP Crawley, DB (reprint author), US DOE, 1000 Independence Ave SW,EE 2J, Washington, DC 20585 USA. EM drury.crawley@ee.doe.gov OI Kummert, Michael/0000-0003-1606-8344 NR 27 TC 351 Z9 357 U1 19 U2 90 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-1323 J9 BUILD ENVIRON JI Build. Environ. PD APR PY 2008 VL 43 IS 4 BP 661 EP 673 DI 10.1016/j.buildenv.2006.10.027 PG 13 WC Construction & Building Technology; Engineering, Environmental; Engineering, Civil SC Construction & Building Technology; Engineering GA 253HI UT WOS:000252508900032 ER PT J AU Hand, JW Crawley, DB Donne, M Lawrie, LK AF Hand, Jon W. Crawley, Drury B. Donne, Michael Lawrie, Linda K. TI Improving non-geometric data available to simulation programs SO BUILDING AND ENVIRONMENT LA English DT Article AB Building performance simulation tools have significantly improved in quality and depth of analysis capability over the past 35 years. Yet, despite these increased capabilities, simulation programs still depend on user entry for significant data about building components, loads, and other typically scheduled inputs. This often forces users to estimate values or find previously compiled sets of data for these inputs. Often there is little information about how the data were derived, what purposes it is fit for, which standards apply, uncertainty associated with each data field as well as a general description of the data. A similar problem bedeviled access to weather data and Crawley et al. [1999. Improving the weather information available to simulation programs, In: Proceedings of building simulation '99, vol. 2,Kyoto, Japan, 13-15 September 1999. IBPSA, p. 529-36.] described a generalized weather data format developed for use with two energy simulation programs, which has subsequently led to a repository which is accessed by thousands of practitioners each year. This paper describes a generalized format and data documentation for such user inputs-whether it is building envelope components, scheduled loads, or environmental emissions-the widgets upon which all models are dependant. We present several examples including building envelope component, a scheduled occupant load, and environmental emissions and speculate on how such data might be incorporated in existing data schemes and simulation tools. (C) 2006 Elsevier Ltd. All rights reserved. C1 [Hand, Jon W.] Univ Strathclyde, Glasgow, Lanark, Scotland. [Crawley, Drury B.] US DOE, Washington, DC USA. Victoria Univ Wellington, Wellington, New Zealand. [Lawrie, Linda K.] DHL Consulting, Pagosa Springs, CO USA. RP Hand, JW (reprint author), Univ Strathclyde, Glasgow, Lanark, Scotland. EM jon@esru.strath.uc.uk NR 13 TC 8 Z9 8 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-1323 J9 BUILD ENVIRON JI Build. Environ. PD APR PY 2008 VL 43 IS 4 BP 674 EP 685 DI 10.1016/j.buildenv.2006.06.022 PG 12 WC Construction & Building Technology; Engineering, Environmental; Engineering, Civil SC Construction & Building Technology; Engineering GA 253HI UT WOS:000252508900033 ER PT J AU Wu, HL Zhu, HH Miao, HY Perelson, AS AF Wu, Hulin Zhu, Haihong Miao, Hongyu Perelson, Alan S. TI Parameter identifiability and estimation of HIV/AIDS dynamic models SO BULLETIN OF MATHEMATICAL BIOLOGY LA English DT Article DE identifiability; inverse problem; statistical estimation; viral dynamics ID IN-VIVO; NONLINEAR-SYSTEMS; VIRAL DYNAMICS; INFECTION; THERAPY; TIME AB We use a technique from engineering (Xia and Moog, in IEEE Trans. Autom. Contr. 48(2):330-336, 2003; Jeffrey and Xia, in Tan, W.Y., Wu, H. (Eds.), Deterministic and Stochastic Models of AIDS Epidemics and HIV Infections with Intervention, 2005) to investigate the algebraic identifiability of a popular three-dimensional HIV/AIDS dynamic model containing six unknown parameters. We find that not all six parameters in the model can be identified if only the viral load is measured, instead only four parameters and the product of two parameters (N and lambda) are identifiable. We introduce the concepts of an identification function and an identification equation and propose the multiple time point (MTP) method to form the identification function which is an alternative to the previously developed higher-order derivative (HOD) method (Xia and Moog, in IEEE Trans. Autom. Contr. 48(2):330-336, 2003; Jeffrey and Xia, in Tan, W.Y., Wu, H. (Eds.), Deterministic and Stochastic Models of AIDS Epidemics and HIV Infections with Intervention, 2005). We show that the newly proposed MTP method has advantages over the HOD method in the practical implementation. We also discuss the effect of the initial values of state variables on the identifiability of unknown parameters. We conclude that the initial values of output (observable) variables are part of the data that can be used to estimate the unknown parameters, but the identifiability of unknown parameters is not affected by these initial values if the exact initial values are measured with error. These noisy initial values only increase the estimation error of the unknown parameters. However, having the initial values of the latent (unobservable) state variables exactly known may help to identify more parameters. In order to validate the identifiability results, simulation studies are performed to estimate the unknown parameters and initial values from simulated noisy data. We also apply the proposed methods to a clinical data set to estimate HIV dynamic parameters. Although we have developed the identifiability methods based on an HIV dynamic model, the proposed methodologies are generally applicable to any ordinary differential equation systems. C1 [Wu, Hulin; Zhu, Haihong; Miao, Hongyu] Univ Rochester, Sch Med & Dent, Dept Biostat & Computat Biol, Rochester, NY 14642 USA. [Perelson, Alan S.] Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. RP Wu, HL (reprint author), Univ Rochester, Sch Med & Dent, Dept Biostat & Computat Biol, 601 Elmwood Ave,Box 630, Rochester, NY 14642 USA. EM hwu@bst.rochester.edu FU NIAID NIH HHS [AI 50020, AI052765, AI055290, AI27658] NR 23 TC 61 Z9 64 U1 2 U2 13 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0092-8240 EI 1522-9602 J9 B MATH BIOL JI Bull. Math. Biol. PD APR PY 2008 VL 70 IS 3 BP 785 EP 799 DI 10.1007/s11538-007-9279-9 PG 15 WC Biology; Mathematical & Computational Biology SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational Biology GA 275QQ UT WOS:000254087100008 PM 18247096 ER PT J AU Teixeira, J Stevens, B Bretherton, CS Cederwall, R Doyle, JD Golaz, JC Holtslag, AAM Klein, SA Lundquist, JK Randall, DA Siebesma, AR Soares, PMM AF Teixeira, J. Stevens, B. Bretherton, C. S. Cederwall, R. Doyle, J. D. Golaz, J. C. Holtslag, A. A. M. Klein, S. A. Lundquist, J. K. Randall, D. A. Siebesma, A. R. Soares, P. M. M. TI Parameterization of the atmospheric boundary layer SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Article ID LARGE-EDDY SIMULATIONS C1 [Teixeira, J.] Naval Res Lab, Monterey, CA USA. [Teixeira, J.] NATO Undersea Res Ctr, La Spezia, Italy. [Stevens, B.] Univ Calif Los Angeles, Los Angeles, CA USA. [Bretherton, C. S.] Univ Washington, Seattle, WA 98195 USA. [Cederwall, R.; Klein, S. A.; Lundquist, J. K.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Doyle, J. D.; Golaz, J. C.] USN, Res Lab, Monterey, CA USA. [Golaz, J. C.] Geophys Fluid Dynam Lab, Princeton, NJ USA. [Holtslag, A. A. M.] Wageningen Univ, Wageningen, Netherlands. [Randall, D. A.] Colorado State Univ, Ft Collins, CO 80523 USA. [Siebesma, A. R.] Royal Netherlands Meteorol Inst, NL-3730 AE De Bilt, Netherlands. [Soares, P. M. M.] Univ Lisbon, P-1699 Lisbon, Portugal. [Soares, P. M. M.] Inst Super Engn Lisboa, Lisbon, Portugal. RP Teixeira, J (reprint author), CALTECH, Jet Prop Lab, 4800 Oak Grove Dr,MS 169-237, Pasadena, CA 91109 USA. EM Teixeira@ipl.nasa.gov RI Randall, David/E-6113-2011; Soares, Pedro /K-6239-2012; Stevens, Bjorn/A-1757-2013; Golaz, Jean-Christophe/D-5007-2014; Klein, Stephen/H-4337-2016; Holtslag, Albert/B-7842-2010 OI Randall, David/0000-0001-6935-4112; Soares, Pedro /0000-0002-9155-5874; Stevens, Bjorn/0000-0003-3795-0475; Golaz, Jean-Christophe/0000-0003-1616-5435; Klein, Stephen/0000-0002-5476-858X; Holtslag, Albert/0000-0003-0995-2481 NR 7 TC 31 Z9 31 U1 1 U2 12 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD APR PY 2008 VL 89 IS 4 BP 453 EP 458 DI 10.1175/BAMS-89-4-453 PG 6 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 299YZ UT WOS:000255792800011 ER PT J AU Arrowsmith, SJ Hedlin, MAH Stump, B Arrowsmith, MD AF Arrowsmith, Stephen J. Hedlin, Michael A. H. Stump, Brian Arrowsmith, Marie D. TI Infrasonic signals from large mining explosions SO BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA LA English DT Article ID ATMOSPHERE; MODEL AB We study infrasonic signals from large surface mining explosions in Wyoming. Detections at the Pinedale Infrasound Array (PDIAR) (obtained using a conventional array-processing technique) are automatically associated with ground-truth mining explosions at a range of 368 km. We then focus on four clear signals from mining explosions. By performing a detailed noise study and modeling the propagation of infrasound using a raytracing algorithm and ground-to-space (G2S) atmospheric models, we assess the factors that contribute to the detectability of mining explosions. We find that we can explain most of the observations by propagation and noise effects alone, but that there are at least two notable outliers. Because of high noise levels at the PDIAR array, which places significant constraints on the sizes of mining explosions that can be detected, these results are strongly biased and must be reassessed for lower-noise infrasound arrays. C1 [Arrowsmith, Stephen J.; Hedlin, Michael A. H.] Univ Calif San Diego, Scripps Inst Oceanog, Inst Geophys & Planetary Phys, La Jolla, CA 92093 USA. [Stump, Brian; Arrowsmith, Marie D.] So Methodist Univ, Dept Geol Sci, Dedman Coll, Dallas, TX 75275 USA. RP Arrowsmith, SJ (reprint author), Los Alamos Natl Lab, EES 2,POB 1663,MS D401, Los Alamos, NM 87545 USA. EM sarrowsmith@gmail.com; hedlin@epicenter.ucsd.edu; bstump@smu.edu; plutonium@gmail.com OI Arrowsmith, Marie/0000-0002-8916-2414 NR 21 TC 8 Z9 8 U1 0 U2 2 PU SEISMOLOGICAL SOC AMER PI ALBANY PA 400 EVELYN AVE, SUITE 201, ALBANY, CA 94706-1375 USA SN 0037-1106 EI 1943-3573 J9 B SEISMOL SOC AM JI Bull. Seismol. Soc. Amer. PD APR 1 PY 2008 VL 98 IS 2 BP 768 EP 777 DI 10.1785/0120060241 PG 10 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 281VW UT WOS:000254528000020 ER PT J AU Rodgers, A Petersson, NA Nilsson, S Sjogreen, B McCandless, K AF Rodgers, Arthur Petersson, N. Anders Nilsson, Stefan Sjoegreen, Bjoen McCandless, Kathleen TI Broadband waveform modeling of moderate earthquakes in the San Francisco Bay Area and preliminary assessment of the USGS 3D seismic velocity model SO BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA LA English DT Article ID LOS-ANGELES BASIN; FINITE-DIFFERENCE METHOD; NORTHERN CALIFORNIA; REGIONAL SEISMOGRAMS; HETEROGENEOUS MEDIA; ADJOINT METHODS; GROUND MOTION; P-WAVES; PROPAGATION; EQUATION AB Recently, the United States Geologic Survey Earthquake Hazards Program developed a 3D seismic velocity model of Northern California based on geology, including a detailed model of the urbanized San Francisco Bay Area. In this study, we report comparisons of observed three-component broadband (0.03-0.25-Hz) waveforms with synthetic seismograms computed with the new 3D model using an elastic finite difference method. We selected a set of 12 moderate earthquakes (M-w 4.0-5.1) that occurred within the greater San Francisco Bay Area, having well-constrained source parameters and broadband recordings with high signal-to-noise ratios. The objective of this study was to investigate how well the 3D velocity model predicts observed waveforms and to identify features of the model that may require revision to improve the waveform fits and predictions of ground motions for future events. We show for the 3 September 2000 Yountville earthquake that reported source parameters accurately predict waveforms at two close strong-motion stations (approximately 10 km from the epicenter). By comparing synthetics for the average 1D model GIL7 (Stidham et al., 1999) and the 3D structures we show that the effects of seismic wave propagation in the 3D model become important for frequencies at and above 0.1 Hz (periods less than 10 sec). Comparison of observed and synthetic seismograms for the 3D model consistently shows that the model predicts energy arriving earlier than is observed, particularly for the surface waves, indicating that the shear velocities in the upper crust must be reduced. We cross correlated the observed and synthetic waveforms and recorded the delay time and linear correlation for best alignment of the data and delayed synthetic. The results indicate that generally the 3D model predicts the observed waveforms well (mean linear correlations 0.41) and includes features that arise from the interaction of the wave field with 3D structure, especially the major sedimentary basins in San Pablo Bay, San Francisco Bay, Santa Clara Valley, and Livermore Valley. Simple conversion of the observed delay times for optimal alignment suggests shear velocities should be reduced by 4%-5% on average. Based on these findings, we conclude that the model is an excellent first step, suggesting that the overall structure of the model is accurate (i.e., the basin and discontinuity geometry). However, the velocities must be reduced to improve the observed timing of surface-wave arrivals. C1 [Rodgers, Arthur] Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Atmospher Earth & Energy Div, Livermore, CA 94551 USA. [Petersson, N. Anders; Nilsson, Stefan; Sjoegreen, Bjoen] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp Computat Directorate, Livermore, CA 94551 USA. [McCandless, Kathleen] Lawrence Livermore Natl Lab, Comp Applicat & Res Dept, Computat Directorate, Livermore, CA 94551 USA. RP Rodgers, A (reprint author), Lawrence Livermore Natl Lab, Chem Mat Earth & Life Sci Directorate, Atmospher Earth & Energy Div, 7000 East Ave,L-205, Livermore, CA 94551 USA. EM rodgers7@llnl.gov RI Rodgers, Arthur/E-2443-2011 NR 53 TC 27 Z9 27 U1 0 U2 1 PU SEISMOLOGICAL SOC AMER PI EL CERRITO PA PLAZA PROFESSIONAL BLDG, SUITE 201, EL CERRITO, CA 94530 USA SN 0037-1106 J9 B SEISMOL SOC AM JI Bull. Seismol. Soc. Amer. PD APR 1 PY 2008 VL 98 IS 2 BP 969 EP 988 DI 10.1785/0120060407 PG 20 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 281VW UT WOS:000254528000036 ER PT J AU Aagaard, BT Brocher, TM Dolenc, D Dreger, D Graves, RW Harmsen, S Hartzell, S Larsen, S Zoback, ML AF Aagaard, Brad T. Brocher, Thomas M. Dolenc, David Dreger, Douglas Graves, Robert W. Harmsen, Stephen Hartzell, Stephen Larsen, Shawn Zoback, Mary Lou TI Ground-motion modeling of the 1906 San Francisco earthquake, part I: Validation using the 1989 Loma Prieta earthquake SO BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA LA English DT Article ID LOS-ANGELES BASIN; WAVE-PROPAGATION; NORTHERN CALIFORNIA; CLARA VALLEY; 3-DIMENSIONAL SIMULATION; SEISMIC RESPONSE; VELOCITY; ACCELERATION; INVERSION; SPECTRA AB We compute ground motions for the Beroza (1991) and Wald et al. (1991) source models of the 1989 magnitude 6.9 Loma Prieta earthquake using four different wave-propagation codes and recently developed 3D geologic and seismic velocity models. In preparation for modeling the 1906 San Francisco earthquake, we use this well-recorded earthquake to characterize how well our ground-motion simulations reproduce the observed shaking intensities and amplitude and durations of recorded motions throughout the San Francisco Bay Area. All of the simulations generate ground motions consistent with the large-scale spatial variations in shaking associated with rupture directivity and the geologic structure. We attribute the small variations among the synthetics to the minimum shear-wave speed permitted in the simulations and how they accommodate topography. Our long-period simulations, on average, under predict shaking intensities by about one-half modified Mercalli intensity (MMI) units (25%-35% in peak velocity), while our broadband simulations, on average, under predict the shaking intensities by one-fourth MMI units (16% in peak velocity). Discrepancies with observations arise due to errors in the source models and geologic structure. The consistency in the synthetic waveforms across the wave-propagation codes for a given source model suggests the uncertainty in the source parameters tends to exceed the uncertainty in the seismic velocity structure. In agreement with earlier studies, we find that a source model with slip more evenly distributed northwest and southeast of the hypocenter would be preferable to both the Beroza and Wald source models. Although the new 3D seismic velocity model improves upon previous velocity models, we identify two areas needing improvement. Nevertheless, we find that the seismic velocity model and the wave-propagation codes are suitable for modeling the 1906 earthquake and scenario events in the San Francisco Bay Area. C1 [Aagaard, Brad T.; Brocher, Thomas M.; Zoback, Mary Lou] US Geol Survey, Menlo Pk, CA 94025 USA. [Dolenc, David; Dreger, Douglas] Univ Calif Berkeley, Seismol Lab, Berkeley, CA 94720 USA. [Graves, Robert W.] URS Corp, Pasadena, CA 91101 USA. [Harmsen, Stephen; Hartzell, Stephen] US Geol Survey, Lakewood, CO 80225 USA. [Larsen, Shawn] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Aagaard, BT (reprint author), US Geol Survey, MS977,345 Middlefield Rd, Menlo Pk, CA 94025 USA. RI Graves, Robert/B-2401-2013; OI Brocher, Thomas/0000-0002-9740-839X; Aagaard, Brad/0000-0002-8795-9833 NR 69 TC 36 Z9 36 U1 0 U2 4 PU SEISMOLOGICAL SOC AMER PI EL CERRITO PA PLAZA PROFESSIONAL BLDG, SUITE 201, EL CERRITO, CA 94530 USA SN 0037-1106 J9 B SEISMOL SOC AM JI Bull. Seismol. Soc. Amer. PD APR 1 PY 2008 VL 98 IS 2 BP 989 EP 1011 DI 10.1785/0120060409 PG 23 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 281VW UT WOS:000254528000037 ER PT J AU Aagaard, BT Brocher, TM Dolenc, D Dreger, D Graves, RW Harmsen, S Hartzell, S Larsen, S McCandless, K Nilsson, S Petersson, NA Rodgers, A Sjogreen, B Zoback, ML AF Aagaard, Brad T. Brocher, Thomas M. Dolenc, David Dreger, Douglas Graves, Robert W. Harmsen, Stephen Hartzell, Stephen Larsen, Shawn McCandless, Kathleen Nilsson, Stefan Petersson, N. Anders Rodgers, Arthur Sjoegreen, Bjoern Zoback, Mary Lou TI Ground-motion modeling of the 1906 San Francisco earthquake, part II: Ground-motion estimates for the 1906 earthquake and scenario events SO BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA LA English DT Article ID LOMA-PRIETA EARTHQUAKE; CALIFORNIA EARTHQUAKE; 3-DIMENSIONAL SIMULATION; CLARA VALLEY; FAULT SLIP; RUPTURE; VELOCITY; INTENSITIES; SPECTRA; SURFACE AB We estimate the ground motions produced by the 1906 San Francisco earthquake making use of the recently developed Song et al. (2008) source model that combines the available geodetic and seismic observations and recently constructed 3D geologic and seismic velocity models. Our estimates of the ground motions for the 1906 earthquake are consistent across five ground-motion modeling groups employing different wave propagation codes and simulation domains. The simulations successfully reproduce the main features of the Boatwright and Bundock (2005) ShakeMap, but tend to over predict the intensity of shaking by 0.1-0.5 modified Mercalli intensity (MMI) units. Velocity waveforms at sites throughout the San Francisco Bay Area exhibit characteristics consistent with rupture directivity, local geologic conditions (e. g., sedimentary basins), and the large size of the event (e. g., durations of strong shaking lasting tens of seconds). We also compute ground motions for seven hypothetical scenarios rupturing the same extent of the northern San Andreas fault, considering three additional hypocenters and an additional, random distribution of slip. Rupture directivity exerts the strongest influence on the variations in shaking, although sedimentary basins do consistently contribute to the response in some locations, such as Santa Rosa, Livermore, and San Jose. These scenarios suggest that future large earthquakes on the northern San Andreas fault may subject the current San Francisco Bay urban area to stronger shaking than a repeat of the 1906 earthquake. Ruptures propagating southward towards San Francisco appear to expose more of the urban area to a given intensity level than do ruptures propagating northward. C1 [Aagaard, Brad T.; Brocher, Thomas M.; Zoback, Mary Lou] US Geol Survey, Menlo Pk, CA 94025 USA. [Dolenc, David; Dreger, Douglas] Univ Calif Berkeley, Seismol Lab, Berkeley, CA 94720 USA. [Graves, Robert W.] URS Corp, Pasadena, CA 91101 USA. [Harmsen, Stephen; Hartzell, Stephen] US Geol Survey, Golden, CO 80225 USA. [Larsen, Shawn] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [McCandless, Kathleen] Lawrence Livermore Natl Lab, Comp Applicat & Res Dept, Computat Directorate, Livermore, CA 94551 USA. [Nilsson, Stefan; Petersson, N. Anders; Sjoegreen, Bjoern] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp Computat Directorate, Livermore, CA 94551 USA. [Rodgers, Arthur] Lawrence Livermore Natl Lab, Atmospher Earth & Energy Dept, Energy & Environm Directorate, Livermore, CA 94551 USA. RP Aagaard, BT (reprint author), US Geol Survey, MS977,345 Middlefield Rd, Menlo Pk, CA 94025 USA. RI Rodgers, Arthur/E-2443-2011; Graves, Robert/B-2401-2013; OI Brocher, Thomas/0000-0002-9740-839X; Aagaard, Brad/0000-0002-8795-9833 NR 56 TC 50 Z9 50 U1 0 U2 8 PU SEISMOLOGICAL SOC AMER PI EL CERRITO PA PLAZA PROFESSIONAL BLDG, SUITE 201, EL CERRITO, CA 94530 USA SN 0037-1106 J9 B SEISMOL SOC AM JI Bull. Seismol. Soc. Amer. PD APR 1 PY 2008 VL 98 IS 2 BP 1012 EP 1046 DI 10.1785/0120060410 PG 35 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 281VW UT WOS:000254528000038 ER PT J AU Turick, CE Caccavo, F Tisa, LS AF Turick, Charles E. Caccavo, Frank, Jr. Tisa, Louis S. TI Pyomelanin is produced by Shewanella algae BrY and affected by exogenous iron SO CANADIAN JOURNAL OF MICROBIOLOGY LA English DT Article DE pyomelanin; Shewanella; 4-hydroxyphenylpyruvate dioxygenase; homogentisic acid; sulcotrione ID P-HYDROXYPHENYLPYRUVATE DIOXYGENASE; 4-HYDROXYPHENYLPYRUVATE DIOXYGENASE; HOMOGENTISIC ACID; VIBRIO-CHOLERAE; MELA GENE; COLWELLIANA; REDUCTION; BACTERIA; BIOSYNTHESIS; PURIFICATION AB Melanin production by Shewanella algae BrY occurred during late- and (or) post-exponential growth in lactate basal salts liquid medium supplemented with tyrosine or phenylalanine. The antioxidant ascorbate inhibited melanin production but not production of the melanin precursor homogentisic acid. In the absence of ascorbate, melanin production was inhibited by the 4-hydroxyphenylpyruvate dioxygenase inhibitor sulcotrione and by concentrations of Fe >= 0.38 mmol.L-1. These data support the hypothesis that pigment production by S. algae BrY was a result of the conversion of tyrosine or phenylalanine to homogentisic acid, which was excreted, auto-oxidized, and self-polymerized to form pyomelanin. Pyomelanin production by S. algae BrY may play an important role in the biogeochemical cycling of Fe in the environment. C1 [Turick, Charles E.] Savannah River Natl Lab, Environm Biotechnol Sect, Aiken, SC 29808 USA. [Caccavo, Frank, Jr.] Whitworth Coll, Dept Biol, Spokane, WA 99251 USA. [Tisa, Louis S.] Univ New Hampshire, Dept Microbiol, Durham, NH 03824 USA. RP Turick, CE (reprint author), Savannah River Natl Lab, Environm Biotechnol Sect, Bldg 999W, Aiken, SC 29808 USA. EM charles.turick@srnl.doe.gov NR 37 TC 14 Z9 15 U1 0 U2 3 PU NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS PI OTTAWA PA BUILDING M 55, OTTAWA, ON K1A 0R6, CANADA SN 0008-4166 J9 CAN J MICROBIOL JI Can. J. Microbiol. PD APR PY 2008 VL 54 IS 4 BP 334 EP 339 DI 10.1139/W08-014 PG 6 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Immunology; Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Immunology; Microbiology GA 289FK UT WOS:000255040200013 PM 18389008 ER PT J AU Nemecek, ER Green, DJ Fisher, DR Pagel, JM Lin, YK Gopal, AK Durack, LD Rajendran, JG Wilbur, DS Nilsson, R Sandberg, B Press, OW AF Nemecek, Eneida R. Green, Damian J. Fisher, Darrell R. Pagel, John M. Lin, Yukang Gopal, Ajay K. Durack, Lawrence D. Rajendran, Joseph G. Wilbur, D. Scott Nilsson, Rune Sandberg, Bengt Press, Oliver W. TI Extracorporeal adsorption therapy: A method to improve targeted radiation delivered by radiometal-labeled monoclonal antibodies SO CANCER BIOTHERAPY AND RADIOPHARMACEUTICALS LA English DT Article DE lymphoma; radioimmunotherapy; monoclonal antibodies; rituximab; primates ID NON-HODGKINS-LYMPHOMA; STEM-CELL TRANSPLANTATION; HUMANIZED ANTI-CD22 ANTIBODY; STREPTAVIDIN FUSION PROTEIN; PERSONAL-COMPUTER SOFTWARE; INTERNAL DOSE ASSESSMENT; ACUTE MYELOID-LEUKEMIA; REFRACTORY LOW-GRADE; PHASE-II TRIAL; PRETARGETED RADIOIMMUNOTHERAPY AB Purpose: Radiolabeled anti-CD20 antibodies have demonstrated impressive efficacy in the treatment of relapsed non-Hodgkin's lymphoma. However, the amount of radiation that can be delivered to eradicate the malignancy is limited by toxicity to normal organs. We examined an "extracorporeal adsorption therapy" (ECAT) method to remove circulating unbound radioimmunoconjugate and improve the ratios of radiation delivered to B-cells in a macaque model. Experimental Design: ECAT was applied with an avidin-agarose column 24 hours after an injection of (111)In- or (177)Lu-DOTA-biotin-rituximab (anti-CD20 antibody) to normal macaques. Two (2) animals were studied in initial blood clearance studies, and 6 additional animals were evaluated in subsequent detailed biodistribution experiments. After the injection of (111)In- or (177)Lu-antibody, 3 animals underwent ECAT circulating one volume/hour while 3 served as controls. Serial blood, marrow, and lymph node samples, gamma-camera images, and necropsy tissues were obtained to estimate radiation-absorbed doses in organs of interest. Results: Optimal blood clearance (98%) was achieved by performing ECAT at a flow rate of one blood volume/hour. Radiation doses to normal organs were reduced with ECAT in kidney (49%+/- 12%), liver (42%+/- 10%), lungs (60%+/- 6%), total body (51%+/- 16%), marrow (50%+/- 15%), spleen (38%+/- 10%), and lymph nodes (19%+/- 3%). Despite dose reduction in both target and nontarget tissues, therapeutic ratios were significantly higher in animals treated with ECAT (20% higher for spleen:kidney and 60% for lymph node:kidney), compared to controls. Conclusions: ECAT is a safe, feasible, and effective method to remove unbound radioimmunoconjugates from the bloodstream and reduce the nonspecific radiation exposure of normal tissues. C1 [Green, Damian J.; Pagel, John M.; Lin, Yukang; Gopal, Ajay K.; Press, Oliver W.] Univ Washington, Fred Hutchinson Canc Res Ctr, Div Clin Res, Seattle, WA 98109 USA. [Nemecek, Eneida R.] Oregon Hlth & Sci Univ, Dept Pediat, Portland, OR 97201 USA. [Green, Damian J.; Pagel, John M.; Gopal, Ajay K.; Press, Oliver W.] Univ Washington, Dept Med, Seattle, WA USA. [Fisher, Darrell R.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Durack, Lawrence D.; Rajendran, Joseph G.] Univ Washington, Dept Radiol, Seattle, WA 98195 USA. [Wilbur, D. Scott] Univ Washington, Dept Radiat Oncol, Seattle, WA 98195 USA. [Nilsson, Rune] Mitra Med AB, Lund, Sweden. [Sandberg, Bengt] Biotech IgG, Lund, Sweden. RP Press, OW (reprint author), Univ Washington, Fred Hutchinson Canc Res Ctr, Div Clin Res, M-S D3-190,1100 Fairview Ave N, Seattle, WA 98109 USA. EM press@u.washington.edu RI Nilsson, Rune/C-1089-2013 OI Nilsson, Rune/0000-0001-8903-7384 FU NCI NIH HHS [P01 CA044991, CA109663, CA44991, CA100394] NR 56 TC 4 Z9 4 U1 0 U2 2 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1084-9785 J9 CANCER BIOTHER RADIO JI Cancer Biother. Radiopharm. PD APR PY 2008 VL 23 IS 2 BP 181 EP 191 DI 10.1089/cbr.2007.0433 PG 11 WC Oncology; Medicine, Research & Experimental; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Research & Experimental Medicine; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA 298VL UT WOS:000255715100005 PM 18454687 ER PT J AU Bhatti, P Sigurdson, AJ Thomas, CB Iwan, A Alexander, BH Kampa, D Bowen, L Doody, MM Jones, IM AF Bhatti, Parveen Sigurdson, Alice J. Thomas, Cynthia B. Iwan, Allison Alexander, Bruce H. Kampa, Diane Bowen, Laura Doody, Michele Morin Jones, Irene M. TI No evidence for differences in DNA damage assessed before and after a cancer diagnosis SO CANCER EPIDEMIOLOGY BIOMARKERS & PREVENTION LA English DT Article ID US RADIOLOGIC TECHNOLOGISTS; IONIZING-RADIATION EXPOSURE; BREAST-CANCER; THYROID-CANCER; COMET ASSAY; REPAIR; GENES; RISK; POLYMORPHISMS; INSTABILITY AB The overwhelming majority of studies that have found increased cancer risk associated with functional deficits in DNA repair used a case-control design, in which measurements were made after cancer diagnosis. However, there are concerns about whether the cancer itself or cancer treatment affected the conclusions (reverse causation bias). We assessed the effect of cancer diagnosis among 26 breast cancer controls who had blood collected during 2001 to 2003 and again in 2005 to 2006 after being diagnosed with cancer. Using the alkaline comet assay, we quantified DNA damage in untreated lymphoblastoid cell lines. Comet distributed moment, olive tail moment, percentage of DNA in tail, and comet tail length were summarized as the geometric mean of 100 cells. For comet distributed moment, olive tail moment, tail DNA, and tail length, the proportions of women with before diagnosis values higher than after diagnosis were 65%, 50%, 50%, and 46%, respectively. We found no significant differences in the before or after diagnosis mean comet values. Median cut-points were determined from the before diagnosis distribution, and we used conditional logistic regression to calculate odds ratios (OR) and upper 95% bounds of the confidence intervals. ORs ranged from 0.6 to 0.9 with upper confidence interval bounds of 1.9 and 2.6, meaning biased ORs above 2.6 are unlikely. We found no evidence that reverse causation bias is an important concern in case-control studies using the comet assay applied to cell lines collected after cancer diagnosis. More work is needed to characterize the effect of cancer diagnosis on other phenotypic assays. C1 [Bhatti, Parveen; Sigurdson, Alice J.; Doody, Michele Morin] NCI, Radiat Epidemiol Branch, Div Canc Epidemiol & Genet, NIH,DHHS, Bethesda, MD 20892 USA. [Iwan, Allison; Alexander, Bruce H.; Kampa, Diane] Univ Minnesota, Sch Publ Hlth, Div Environm Hlth Sci, Minneapolis, MN USA. [Thomas, Cynthia B.; Jones, Irene M.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Bowen, Laura] Informat Management Serv Inc, Silver Spring, MD USA. RP Bhatti, P (reprint author), NCI, Radiat Epidemiol Branch, Div Canc Epidemiol & Genet, NIH,DHHS, 6120 Execut Blvd, Bethesda, MD 20892 USA. EM bhattip@mail.nih.gov FU Intramural NIH HHS [ZIA CP010133-18] NR 17 TC 7 Z9 7 U1 0 U2 3 PU AMER ASSOC CANCER RESEARCH PI PHILADELPHIA PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA SN 1055-9965 J9 CANCER EPIDEM BIOMAR JI Cancer Epidemiol. Biomarkers Prev. PD APR PY 2008 VL 17 IS 4 BP 990 EP 994 DI 10.1158/1055-9965.EPI-07-2871 PG 5 WC Oncology; Public, Environmental & Occupational Health SC Oncology; Public, Environmental & Occupational Health GA 288EM UT WOS:000254969000036 PM 18398043 ER PT J AU Bronkema, JL Bell, AT AF Bronkema, Jason L. Bell, Alexis T. TI An investigation of the reduction and reoxidation of isolated vanadate sites supported on MCM-48 SO CATALYSIS LETTERS LA English DT Article DE vanadate; silica; reduction; oxidation ID VANADIUM-OXIDE CATALYSTS; TEMPERATURE-PROGRAMMED REDUCTION; RAY-ABSORPTION-SPECTROSCOPY; METHANOL OXIDATION; ATOMIC OXYGEN; SILICA; SIO2; FORMALDEHYDE; REACTIVITY; DIFFUSION AB The reduction and subsequent reoxidation of isolated vanadate species supported on silica was investigated using temperature-programmed reduction and oxidation, along with in-situ XANES and Raman spectroscopy. Approximately 70-80% of the vanadium was reduced to V3+ after reduction in H-2 at temperatures up to 923 K. Upon reduction, the vanadyl oxygen was removed and the three remaining V-O bonds are lengthened by 0.2 angstrom. The vanadate species are rapidly reoxidized when exposed to O-2, with the amount of oxygen uptake matching well with the amount removed during reduction. In-situ Raman spectroscopy during reoxidation in O-18(2) showed that significant scrambling occurs between gas phase oxygen and surface oxygen species during the reoxidation of the vanadate species. C1 [Bronkema, Jason L.; Bell, Alexis T.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. [Bronkema, Jason L.; Bell, Alexis T.] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA USA. RP Bell, AT (reprint author), Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. EM alexbell@berkeley.edu OI Bell, Alexis/0000-0002-5738-4645 NR 26 TC 3 Z9 3 U1 0 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 1011-372X J9 CATAL LETT JI Catal. Lett. PD APR PY 2008 VL 122 IS 1-2 BP 1 EP 8 DI 10.1007/s10562-007-9382-4 PG 8 WC Chemistry, Physical SC Chemistry GA 270XZ UT WOS:000253754800001 ER PT J AU Monine, MI Haugh, JM AF Monine, Michael I. Haugh, Jason M. TI Cell population-based model of dermal wound invasion with heterogeneous intracellular signaling properties SO CELL ADHESION & MIGRATION LA English DT Article DE wound healing; chemotaxis; gradient sensing; mathematical model; stochastic; signal transduction; phosphoinositide 3-kinase; PDGF AB A deterministic model of dermal wound invasion, which accounts for the platelet-derived growth factor (PDGF) gradient sensing mechanism in fibroblasts mediated by cell surface receptors and the phosphoinositide 3-kinase (PI3K) signal transduction pathway, was previously described (Biophys J 2006; 90: 2297-308). Here, we extend that work and implement a hybrid modeling strategy that treats fibroblasts as discrete entities endowed with heterogeneous properties, namely receptor, PI3K and 3' phosphoinositide phosphatase expression levels. Analysis of the model suggests that the wound environment fosters the advancement of cells within the population that are better fit to migrate and/or proliferate in response to PDGF stimulation. Thus, cell-to-cell variability results in a significantly higher rate of wound invasion as compared with the deterministic model, in a manner that depends on the way in which individual cell properties are sampled or inherited upon cell division. C1 [Haugh, Jason M.] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA. [Monine, Michael I.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. [Monine, Michael I.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. RP Haugh, JM (reprint author), N Carolina State Univ, Dept Chem & Biomol Engn, Box 7905,Engn Bldg 1, Raleigh, NC 27695 USA. EM jason_haugh@ncsu.edu OI Haugh, Jason/0000-0002-2476-4027 FU National Institutes of Health [R21-GM074711] FX This work was supported by grant R21-GM074711 from the National Institutes of Health. NR 51 TC 3 Z9 3 U1 0 U2 1 PU LANDES BIOSCIENCE PI AUSTIN PA 1806 RIO GRANDE ST, AUSTIN, TX 78702 USA SN 1933-6918 J9 CELL ADHES MIGR JI Celll Adhes. Migr. PD APR-JUN PY 2008 VL 2 IS 2 BP 137 EP 145 DI 10.4161/cam.2.2.6511 PG 9 WC Cell Biology SC Cell Biology GA V21VA UT WOS:000208233900016 PM 19262100 ER PT J AU Zhong, L Matthews, JF Crowley, MF Rignall, T Talon, C Cleary, JM Walker, RC Chukkapalli, G McCabe, C Nimlos, MR Brooks, CL Himmel, ME Brady, JW AF Zhong, Linghao Matthews, James F. Crowley, Michael F. Rignall, Tauna Talon, Cesar Cleary, Joseph M. Walker, Ross C. Chukkapalli, Giridhar McCabe, Clare Nimlos, Mark R. Brooks, Charles L., III Himmel, Michael E. Brady, John W. TI Interactions of the complete cellobiohydrolase I from Trichodera reesei with microcrystalline cellulose I beta SO CELLULOSE LA English DT Article DE cellulase; cellobiohydrolase I; cellulose; computer modeling; molecular dynamics ID NEUTRON FIBER DIFFRACTION; HYDROGEN-BONDING SYSTEM; SYNCHROTRON X-RAY; MOLECULAR-DYNAMICS; CRYSTAL-STRUCTURE; BINDING MODULES; ENERGY; SIMULATION; BIOFUELS; BIOMASS AB We describe the construction of a model complex of the cellobiohydrolase I (CBH I) cellulase from Trichoderma reesei bound to a cellulose microfibril in an aqueous environment for use in molecular dynamics (MD) simulations. Preliminary characterization from the initial phases of an MD simulation of this complex is also described. The linker sequence between the two globular domains was found to be quite flexible, and the oligosaccharides bound to this linker were found to prefer to be splayed like the spokes in a wheel due to their hydration requirements. The overall conformations of the two globular domains remained stable in the simulations, although both underwent changes in their orientations. C1 [Zhong, Linghao; Matthews, James F.; Talon, Cesar; Brady, John W.] Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA. [Zhong, Linghao] Penn State Univ, Mt Alto, PA 17237 USA. [Crowley, Michael F.; Brooks, Charles L., III] Scripps Res Inst, La Jolla, CA 92037 USA. [Rignall, Tauna; McCabe, Clare] Vanderbilt Univ, Dept Chem Engn, Nashville, TN 37235 USA. [Cleary, Joseph M.; Walker, Ross C.; Chukkapalli, Giridhar] San Diego Supercomp Ctr, La Jolla, CA 92093 USA. [Nimlos, Mark R.; Himmel, Michael E.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Brady, JW (reprint author), Cornell Univ, Dept Food Sci, Ithaca, NY 14853 USA. EM jwb7@cornell.edu RI McCabe, Clare/I-8017-2012; crowley, michael/A-4852-2013 OI McCabe, Clare/0000-0002-8552-9135; crowley, michael/0000-0001-5163-9398 NR 51 TC 30 Z9 30 U1 0 U2 24 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0969-0239 J9 CELLULOSE JI Cellulose PD APR PY 2008 VL 15 IS 2 BP 261 EP 273 DI 10.1007/s10570-007-9186-0 PG 13 WC Materials Science, Paper & Wood; Materials Science, Textiles; Polymer Science SC Materials Science; Polymer Science GA 267QR UT WOS:000253524800009 ER PT J AU Jiradilok, V Gidaspow, D Breault, RW Shadle, LJ Guenther, C Shi, SP AF Jiradilok, Veeraya Gidaspow, Dimitri Breault, Ronald W. Shadle, Lawrence J. Guenther, Chris Shi, Shaoping TI Computation of turbulence and dispersion of cork in the NETL riser SO CHEMICAL ENGINEERING SCIENCE LA English DT Article DE gas-particle flow; fluidization; computational fluid dynamics; reynolds stress ID CIRCULATING FLUIDIZED-BED; SLURRY BUBBLE-COLUMN; KINETIC-THEORY; GRANULAR TEMPERATURE; SOLID RISER; REYNOLDS STRESSES; CFD SIMULATION; GAS DISPERSION; FLOW; HYDRODYNAMICS AB The knowledge of dispersion coefficients is essential for reliable design of gasifiers. However, a literature review had shown that dispersion coefficients in fluidized beds differ by more than five orders of magnitude. This study presents a comparison of the computed axial solids dispersion coefficients for cork particles to the NETL riser cork data. The turbulence properties, the Reynolds stresses, the granular temperature spectra and the radial and axial gas and solids dispersion coefficients are computed. The standard kinetic theory model described in Gidaspow's 1994 book, Multiphase Flow and Fluidization, Academic Press and the 117 and Fluent codes were used to compute the measured axial solids volume fraction profiles for flow of cork particles in the NETL riser. The Johnson-Jackson boundary conditions were used. Standard drag correlations were used. This study shows that the computed solids volume fractions for the low flux flow are within the experimental error of those measured, using a two-dimensional model. At higher solids fluxes the simulated solids volume fractions are close to the experimental measurements, but deviate significantly at the top of the riser. This disagreement is due to use of simplified geometry in the two-dimensional simulation. There is a good agreement between the experiment and the three-dimensional simulation for a high flux condition. This study concludes that the axial and radial gas and solids dispersion coefficients in risers operating in the turbulent flow regime can be computed using a multiphase computational fluid dynamics model. (C) 2008 Published by Elsevier Ltd. C1 [Jiradilok, Veeraya; Gidaspow, Dimitri] IIT, Chicago, IL 60616 USA. [Breault, Ronald W.; Shadle, Lawrence J.; Guenther, Chris] US DOE, Morgantown, WV USA. [Shi, Shaoping] Ansys Fluent, Morgantown, WV USA. RP Gidaspow, D (reprint author), IIT, Chicago, IL 60616 USA. EM gidaspow@iit.edu OI Breault, Ronald/0000-0002-5552-4050; Shadle, Lawrence/0000-0002-6283-3628 NR 59 TC 31 Z9 33 U1 0 U2 12 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0009-2509 J9 CHEM ENG SCI JI Chem. Eng. Sci. PD APR PY 2008 VL 63 IS 8 BP 2135 EP 2148 DI 10.1016/j.ces.2008.01.019 PG 14 WC Engineering, Chemical SC Engineering GA 291YL UT WOS:000255233300011 ER PT J AU Brusseau, ML DiFilippo, EL Marble, JC Oostrom, M AF Brusseau, M. L. DiFilippo, E. L. Marble, J. C. Oostrom, M. TI Mass-removal and mass-flux-reduction behavior for idealized source zones with hydraulically poorly-accessible immiscible liquid SO CHEMOSPHERE LA English DT Article DE transport; DNAPL; contamination; groundwater ID NONAQUEOUS PHASE LIQUID; SATURATED POROUS-MEDIA; UNIFORM-FLOW FIELDS; DNAPL SOURCE ZONES; NAPL DISSOLUTION; EMPLACED-SOURCE; HETEROGENEOUS SYSTEMS; PLUME DEVELOPMENT; REMEDIATION; TRANSPORT AB A series of flow-cell experiments was conducted to investigate aqueous dissolution and mass-removal behavior for systems wherein immiscible liquid was non-uniformly distributed in physically heterogeneous source zones. The study focused specifically on characterizing the relationship between mass flux reduction and mass removal for systems for which immiscible liquid is poorly accessible to flowing water. Two idealized scenarios were examined, one wherein immiscible liquid at residual saturation exists within a lower-permeability unit residing in a higher-permeability matrix, and one wherein immiscible liquid at higher saturation (a pool) exists within a higher-permeability unit adjacent to a lower-permeability unit. The results showed that significant reductions in mass flux occurred at relatively moderate mass-removal fractions for all systems. Conversely, minimal mass flux reduction occurred until a relatively large fraction of mass (>80%) was removed for the control experiment, which was designed to exhibit ideal mass removal. In general, mass flux reduction was observed to follow an approximately one-to-one relationship with mass removal. Two methods for estimating mass-flux-reduction/ mass-removal behavior, one based on system-indicator parameters (ganglia-to-pool ratio) and the other a simple mass-removal function, were used to evaluate the measured data. The results of this study illustrate the impact of poorly accessible immiscible liquid on mass-removal and mass-flux processes, and the difficulties posed for estimating mass-flux-reduction/mass-removal behavior. (C) 2007 Elsevier Ltd. All rights reserved. C1 Univ Arizona, Tucson, AZ 85721 USA. [Oostrom, M.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Brusseau, ML (reprint author), Univ Arizona, 429 Shantz Bldg, Tucson, AZ 85721 USA. EM brusseau@ag.arizona.edu FU NIEHS NIH HHS [P42 ES004940-160016, ES04940, P42 ES004940] NR 60 TC 32 Z9 32 U1 0 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0045-6535 J9 CHEMOSPHERE JI Chemosphere PD APR PY 2008 VL 71 IS 8 BP 1511 EP 1521 DI 10.1016/j.chemosphere.2007.11.064 PG 11 WC Environmental Sciences SC Environmental Sciences & Ecology GA 294DK UT WOS:000255384300013 PM 18279910 ER PT J AU Marland, G Obersteiner, M AF Marland, Gregg Obersteiner, Michael TI Large-scale biomass for energy, with considerations and cautions: an editorial comment SO CLIMATIC CHANGE LA English DT Editorial Material ID GREENHOUSE-GAS MITIGATION; BIOENERGY PRODUCTION; HUMAN APPROPRIATION; US AGRICULTURE; BIOFUELS; ECOSYSTEMS; FORESTRY; ETHANOL C1 [Marland, Gregg; Obersteiner, Michael] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria. [Marland, Gregg] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Marland, G (reprint author), Int Inst Appl Syst Anal, Schlosspl 1, A-2361 Laxenburg, Austria. EM marland@iiasa.ac.at NR 30 TC 24 Z9 24 U1 1 U2 6 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0165-0009 J9 CLIMATIC CHANGE JI Clim. Change PD APR PY 2008 VL 87 IS 3-4 BP 335 EP 342 DI 10.1007/s10584-007-9386-5 PG 8 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 277SK UT WOS:000254234800004 ER PT J AU Shin, YS Baker, GA Wang, LQ Exarhos, GJ AF Shin, Yongsoon Baker, Gary A. Wang, Li-Qiong Exarhos, Gregory J. TI Investigation of the hygroscopic growth of self-assembled layers of N-alkyl-N-methylpyrrolidinium bromides at the interface between air and organic salt SO COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS LA English DT Article DE hygroscopic; surfactant; self-assembly; interface; lamellar ID IONIC LIQUIDS; SURFACTANT MOLECULES; WATER; NMR AB We report on the hygroscopic growth of self-assembled lamellae, composed of N-alkyl-N-methylpyrrolidinium bromide (C,MPB; n = 10, 12, 14, 16, 18) surfactant molecules, spontaneously formed at the interface between ambient air and the low-melting organic salt tetrabutylammonium acetate (TBAAc). The organization process to form well-defined hygroscopic bilayer patterns at the air/TBAAc interface was investigated using a combination of time-dependent X-ray diffraction (XRD) and carbon-13 cross-polarization magic angle spinning nuclear magnetic resonance (C-13 CP/MAS NMR) spectroscopy. CnMPB surfactants containing the highest alkyl chain lengths studied (n = 16, 18) formed highly ordered, fully interdigitated bilayer patterns with an all-trans conformation of interior methylene carbons. In contrast, C,MPB surfactants with shorter alkane chains (n = 10, 12, 14) in this series formed less-ordered bilayer arrangements with mixed trans/gauche aliphatic character. The lamellar patterns became increasingly ordered with longer exposure to humid air at the air/salt interface. Published by Elsevier B.V. C1 [Shin, Yongsoon; Wang, Li-Qiong; Exarhos, Gregory J.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Baker, Gary A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Shin, YS (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd,POB 999,MS K2-44, Richland, WA 99354 USA. EM yongsoon.shin@pnl.gov RI Baker, Gary/H-9444-2016 OI Baker, Gary/0000-0002-3052-7730 NR 18 TC 3 Z9 4 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-7757 J9 COLLOID SURFACE A JI Colloid Surf. A-Physicochem. Eng. Asp. PD APR 1 PY 2008 VL 318 IS 1-3 BP 254 EP 258 DI 10.1016/j.colsurfa.2007.12.045 PG 5 WC Chemistry, Physical SC Chemistry GA 297NI UT WOS:000255623000028 ER PT J AU Jackson, M Pantoya, ML Gill, W AF Jackson, Matt Pantoya, Michelle L. Gill, Walt TI Characterization of a gas burner to simulate a propellant flame and evaluate aluminum particle combustion SO COMBUSTION AND FLAME LA English DT Article DE aluminum particle combustion; hydrocarbon combustion; diffusion flame burner; propellant simulation burner ID NUMERICAL-SIMULATION AB This study details the characterization and implementation of a burner designed to simulate solid propellant fires. The burner was designed with the ability to introduce particles (particularly aluminum) into a gas flame. The aluminized flame conditions produced by this burner are characterized based on temperature and heat flux measurements. Using these results, flame conditions are quantified in comparison to other well-characterized reactions including hydrocarbon and propellant fires. The aluminized flame is also used to measure the burning rate of the particles. This work describes the application of this burner for re-creating small-scale propellant flame conditions and as a test platform for experiments that contribute to the development of a particle combustion model, particularly in propellant fires. (C) 2008 The Combustion Institute. Published by Elsevier Inc. All rights reserved. C1 [Pantoya, Michelle L.] Texas Tech Univ, Dept Mech Engn, Lubbock, TX 79409 USA. [Jackson, Matt] W Texas A&M Univ, Dept Engn, Canyon, TX 79016 USA. [Gill, Walt] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Pantoya, ML (reprint author), Texas Tech Univ, Dept Mech Engn, Lubbock, TX 79409 USA. EM michelle.pantoya@ttu.edu NR 31 TC 8 Z9 8 U1 0 U2 3 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD APR PY 2008 VL 153 IS 1-2 BP 58 EP 70 DI 10.1016/j.combustflame.2007.11.014 PG 13 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA 283PW UT WOS:000254649900005 ER PT J AU Musculus, MPB Singh, S Reitz, RD AF Musculus, Mark P. B. Singh, Satbjr Reitz, Rolf D. TI Gradient effects on two-color soot optical pyrometry in a heavy-duty DI diesel engine SO COMBUSTION AND FLAME LA English DT Article DE Diesel; low-temperature combustion; soot; 2-color; pyrometry; computational fluid dynamics; soot modeling; error analysis ID DETAILED CHEMISTRY; VOLUME-FRACTION; FLAME; TEMPERATURE; COMBUSTION; EMISSIONS AB Two-color soot optical pyrometry is a widely used technique for measuring soot temperature and volume fraction in many practical combustion devices, but line-of-sight soot temperature and volume fraction gradients can introduce significant uncertainties in the measurements. For diesel engines, these uncertainties usually can only be estimated based on assumptions about the soot property gradients along the line of sight, because full three-dimensional transient diesel soot distribution data are not available. Such information is available, however, from multidimensional computer model simulations, which are phenomenologically based, and have been validated against available in-cylinder soot measurements and diesel engine exhaust soot emissions. Using the model-predicted in-cylinder soot distributions, uncertainties in diesel two-color pyrometry data are assessed, both for a conventional high-sooting, high-temperature combustion (HTC) operating condition, and for a low-sooting, low-temperature combustion (LTC) condition. The simulation results confirm that the two-color soot measurements are strongly biased toward the properties of the hot soot. For the HTC condition, line-of-sight gradients in soot temperature span 600 K, causing relatively large errors. The two-color temperature is 200 K higher than the sootmass-averaged value, while the two-color volume fraction is 50% lower. For the LTC condition, the two-color measurement errors are half as large as for the HTC condition, because the model-predicted soot temperature gradients along the line of sight are half as large. By contrast, soot temperature and volume fraction gradients across the field of view introduce much smaller errors of less than 50 K in temperature and 20% in volume fraction. Published by Elsevier Inc. on behalf of The Combustion Institute. C1 [Musculus, Mark P. B.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA. [Singh, Satbjr] PSRL, Gen Motor Res & Dev, Warren, MI 48090 USA. [Reitz, Rolf D.] Univ Wisconsin, Engine Res Ctr, Dept Mech Engn, Madison, WI 53706 USA. RP Musculus, MPB (reprint author), Sandia Natl Labs, Combust Res Facil, POB 969,MS9053, Livermore, CA 94551 USA. EM mpmuscu@sandia.gov NR 35 TC 23 Z9 27 U1 0 U2 23 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD APR PY 2008 VL 153 IS 1-2 BP 216 EP 227 DI 10.1016/j.combustflame.2007.10.023 PG 12 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA 283PW UT WOS:000254649900018 ER PT J AU Liska, R Shashkov, M AF Liska, Richard Shashkov, Mikhail TI Enforcing the discrete maximum principle for linear finite element solutions of second-order elliptic problems SO COMMUNICATIONS IN COMPUTATIONAL PHYSICS LA English DT Article DE second-order elliptic problems; linear finite element solutions; discrete maximum principle; constrained optimization ID ANISOTROPIC DIFFUSION OPERATORS; HEAT-CONDUCTION PROBLEM; REPAIR PARADIGM; VOLUME SCHEME; MESHES; EQUATIONS; MONOTONICITY AB The maximum principle is a basic qualitative property of the solution of second-order elliptic boundary value problems. The preservation of the qualitative characteristics, such as the maximum principle, in discrete model is one of the key requirements. It is well known that standard linear finite element solution does not satisfy maximum principle on general triangular meshes in 2D. In this paper we consider how to enforce discrete maximum principle for linear finite element solutions for the linear second-order self-adjoint elliptic equation. First approach is based on repair technique, which is a posteriori correction of the discrete solution. Second method is based on constrained optimization. Numerical tests that include anisotropic cases demonstrate how our method works for problems for which the standard finite element methods produce numerical solutions that violate the discrete maximum principle. C1 [Liska, Richard] Czech Tech Univ Prague, Fac Nucl Sci & Phys Engn, CR-11519 Prague 1, Czech Republic. [Shashkov, Mikhail] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Liska, R (reprint author), Czech Tech Univ Prague, Fac Nucl Sci & Phys Engn, Brehova 7, CR-11519 Prague 1, Czech Republic. EM liska@siduri.fjfi.cvut.cz; shashkov@lanl.gov RI Liska, Richard/C-3142-2009 OI Liska, Richard/0000-0002-6149-0440 NR 29 TC 47 Z9 50 U1 0 U2 2 PU GLOBAL SCIENCE PRESS PI WANCHAI PA ROOM 2303, OFFICER TOWER, CONVENTION PLAZA, 1 HARBOUR ROAD, WANCHAI, HONG KONG 00000, PEOPLES R CHINA SN 1815-2406 J9 COMMUN COMPUT PHYS JI Commun. Comput. Phys. PD APR PY 2008 VL 3 IS 4 BP 852 EP 877 PG 26 WC Physics, Mathematical SC Physics GA 287QU UT WOS:000254932400005 ER PT J AU Gokhale, M Cohen, J Yoo, A Miller, WM Jacob, A Ulmer, C Pearce, R AF Gokhale, Maya Cohen, Jonathan Yoo, Andy Miller, W. Marcus Jacob, Arpith Ulmer, Craig Pearce, Roger TI Hardware technologies for high-performance data-intensive computing SO COMPUTER LA English DT Article AB Data-intensive problems challenge conventional computing architectures with demanding CPU, memory, and I/O requirements. Using benchmarks that draw on three data types - scientific imagery, unstructured text, and semantic graphs representing networks of relationships - the authors demonstrate that emerging hardware technologies to augment traditional microprocessor-based computing systems can deliver 2 to 17 times the performance of general-purpose computers on a wide range of data-intensive applications by increasing compute cycles and bandwidth and reducing latency. C1 [Gokhale, Maya; Cohen, Jonathan; Yoo, Andy; Miller, W. Marcus] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Jacob, Arpith] Washington Univ, Dept Comp Sci & Engn, St Louis, MO 63130 USA. [Ulmer, Craig] Sandia Natl Labs, Livermore, CA 94550 USA. [Pearce, Roger] Texas A&M Univ, Dept Comp Sci, College Stn, TX 77843 USA. RP Gokhale, M (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM maya@llnl.gov; jcohen@llnl.gov; ayoo@llnl.gov; jarpith@cse.wustl.edu; cdulmer@sandia.gov; rpearce@tamu.edu NR 7 TC 21 Z9 21 U1 0 U2 0 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0018-9162 J9 COMPUTER JI Computer PD APR PY 2008 VL 41 IS 4 BP 60 EP + DI 10.1109/MC.2008.125 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering SC Computer Science GA 286QC UT WOS:000254859900019 ER PT J AU Bogomjakov, A Gotsman, C Isenburg, M AF Bogomjakov, Alexander Gotsman, Craig Isenburg, Martin TI Distortion-free steganography for polygonal meshes SO COMPUTER GRAPHICS FORUM LA English DT Article; Proceedings Paper CT 29th Annual Conference of the European-Association-for-Computer-Graphics CY APR 14-18, 2008 CL Crete, GREECE SP European Assoc Comp Graph, Fdn Res & Technol Hellas, Nvidia, IBM Res ID CONNECTIVITY; ALGORITHM AB We present a technique for steganography in polygonal meshes. Our method hides a message in the indexed rep-resentation of a mesh by permuting the order in which faces and vertices are stored. The permutation is relative to a reference ordering that encoder and decoder derive from the mesh connectivity in a consistent manner. Our method is distortion-free because it does not modify the geometry of the mesh. Compared to previous steganographic methods for polygonal meshes our capacity is up to an order of magnitude better. Our steganography algorithm is universal and can be used instead of the standard permutation steganography algorithm on arbitrary datasets. The standard algorithm runs in Omega (n(2) log(2) n log log n) time and achieves optimal O(nlog n) bit capacity on datasets with n elements. In contrast, our algorithm runs in O(n) time, achieves a capacity that is only one bit per element less than optimal, and is extremely simple to implement. C1 [Bogomjakov, Alexander; Gotsman, Craig] Technion Israel Inst Technol, Ctr Graph & Geomet Comp, IL-32000 Haifa, Israel. [Isenburg, Martin] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA. RP Bogomjakov, A (reprint author), Technion Israel Inst Technol, Ctr Graph & Geomet Comp, IL-32000 Haifa, Israel. NR 23 TC 19 Z9 19 U1 0 U2 2 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0167-7055 EI 1467-8659 J9 COMPUT GRAPH FORUM JI Comput. Graph. Forum PD APR PY 2008 VL 27 IS 2 BP 637 EP 642 DI 10.1111/j.1467-8659.2008.01161.x PG 6 WC Computer Science, Software Engineering SC Computer Science GA 292SD UT WOS:000255285500053 ER PT J AU Michel, N Stoitsov, MV AF Michel, N. Stoitsov, M. V. TI Fast computation of the Gauss hypergeometric function with all its parameters complex with application to the Poschl-Teller-Ginocchio potential wave functions SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Article DE hypergeometric; complex analysis; special functions; analytical potentials ID PATH-INTEGRAL TREATMENT; SCHRODINGER-EQUATION; ANALYTIC CONTINUATION; SOLVABLE POTENTIALS; DIRAC-EQUATION; SERIES AB The fast computation of the Gauss hypergeometric function F-2(1) with all its parameters complex is a difficult task. Although the F-2(1) function verifies numerous analytical properties involving power series expansions whose implementation is apparently immediate, their use is thwarted by instabilities induced by cancellations between very large terms. Furthermore, small areas of the complex plane, in the vicinity of z = e(+/- i pi/3) are inaccessible using 2171 power series linear transformations. In order to solve these problems, a generalization of R.C. Forrey's transformation theory has been developed. The latter has been successful in treating the F-2(1) function with real parameters. As in real case transformation theory, the large canceling terms occurring in F-2(1) analytical formulas are rigorously dealt with, but by way of a new method, directly applicable to the complex plane. Taylor series expansions are employed to enter complex areas outside the domain of validity of power series analytical formulas. The proposed algorithm, however, becomes unstable in general when vertical bar a vertical bar, vertical bar b vertical bar, vertical bar c vertical bar are moderate or large. As a physical application, the calculation of the wave functions of the analytical Poschl-Teller-Ginocchio potential involving F-2(1) evaluations is considered. C1 [Michel, N.; Stoitsov, M. V.] Kyoto Univ, Grad Sch Sci, Dept Phys, Kyoto 6068502, Japan. [Stoitsov, M. V.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Stoitsov, M. V.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Stoitsov, M. V.] Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA. [Stoitsov, M. V.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BU-1113 Sofia, Bulgaria. RP Michel, N (reprint author), Kyoto Univ, Grad Sch Sci, Dept Phys, Kyoto 6068502, Japan. EM nmichel@yukawa.kyoto-u.ac.jp NR 40 TC 20 Z9 20 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0010-4655 EI 1879-2944 J9 COMPUT PHYS COMMUN JI Comput. Phys. Commun. PD APR 1 PY 2008 VL 178 IS 7 BP 535 EP 551 DI 10.1016/j.cpc.2007.11.007 PG 17 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 290BY UT WOS:000255098900007 ER PT J AU Yu, H Girimaji, SS AF Yu, Huidan Girimaji, Sharath S. TI Study of axis-switching and stability of laminar rectangular jets using lattice Boltzmann method SO COMPUTERS & MATHEMATICS WITH APPLICATIONS LA English DT Article; Proceedings Paper CT 2nd International Conference on Mesoscopic Methods in Engineering and Science (ICMMES) CY JUL 25-29, 2005 CL Hong Kong Polytechn Univ, Hong Kong, PEOPLES R CHINA HO Hong Kong Polytechn Univ DE lattice Boltzmann equation; rectangular jet; transition; instability; axis switching ID TURBULENT FREE JET; NUMERICAL-SIMULATION; ASPECT-RATIO; NONCIRCULAR JETS; EQUATION; MODELS; FLOWS; SLOTS AB We study stability characteristics and axis-switching behavior in low aspect-ratio (AR) laminar rectangular jets using lattice Boltzmann method. The objective of the study is to establish how the jet behavior changes with aspect ratio. Computations are performed with the D3Q 19 multiple-relaxation-time lattice Boltzmann equation model. Simulations of three rectangular jets with AR = 1, 1.5 and 2 at four Reynolds numbers, 10, 100, 150, and 200, are performed. The main conclusions of this study are: (1) At low Reynolds numbers (Re <= 100), the three jets are stable and no axis switching is observed. (2) At intermediate Reynolds numbers (Re = 150), axis switching is clearly evident. The square jet (AR = 1) exhibits 45 degrees axis switching and tends to become unstable. The two rectangular jets continue to be stable and exhibit 90 degrees axis switching. (3) At high Reynolds numbers (Re >= 200), all three jets are unstable and the irregular instantaneous cross-section still shows evidence of axis switching. Instability originates near the jet orifice and then propagates down the stream. The physics underlying the 45 degrees and 90 degrees axis switching are examined. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Yu, Huidan; Girimaji, Sharath S.] Texas A&M Univ, Dept Aerosp Engn, College Stn, TX 77843 USA. RP Yu, H (reprint author), Los Alamos Natl Lab, CCS 2 CNLS, Los Alamos, NM 87545 USA. EM hyu@lani.gov; girimiji@aero.tamu.edu NR 21 TC 4 Z9 4 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0898-1221 J9 COMPUT MATH APPL JI Comput. Math. Appl. PD APR PY 2008 VL 55 IS 7 BP 1611 EP 1619 DI 10.1016/j.camwa.2007.08.01 PG 9 WC Mathematics, Applied SC Mathematics GA 296KJ UT WOS:000255541600026 ER PT J AU Berdahl, P Akbari, H Levinson, R Miller, WA AF Berdahl, Paul Akbari, Hashem Levinson, Ronnen Miller, William A. TI Weathering of roofing materials - An overview SO CONSTRUCTION AND BUILDING MATERIALS LA English DT Review DE weathering; roofing materials; photodegradation; soiling; solar reflectance ID BIODETERIORATION; COLONIZATION AB An overview of several aspects of the weathering of roofing materials is presented. Degradation of materials initiated by ultraviolet radiation is discussed for plastics used in roofing, as well as wood and asphalt. Elevated temperatures accelerate many deleterious chemical reactions and hasten diffusion of material components. Effects of moisture include decay of wood, acceleration of corrosion of metals, staining of clay, and freeze-thaw damage. Soiling of roofing materials causes objectionable stains and reduces the solar reflectance of reflective materials. (Soiling of non-reflective materials can also increase solar reflectance.) Soiling can be attributed to biological growth (e.g., cyanobacteria, fungi, algae), deposits of organic and mineral particles, and to the accumulation of fly ash, hydrocarbons and soot from combustion. (c) 2006 Elsevier Ltd. All rights reserved. C1 [Berdahl, Paul; Akbari, Hashem; Levinson, Ronnen] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. [Miller, William A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Berdahl, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Mail Stop 70-108B,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM PHBerdahl@lbl.gov NR 46 TC 62 Z9 64 U1 2 U2 25 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0950-0618 J9 CONSTR BUILD MATER JI Constr. Build. Mater. PD APR PY 2008 VL 22 IS 4 BP 423 EP 433 DI 10.1016/j.conbuildmat.2006.10.015 PG 11 WC Construction & Building Technology; Engineering, Civil; Materials Science, Multidisciplinary SC Construction & Building Technology; Engineering; Materials Science GA 271QB UT WOS:000253802700002 ER PT J AU Chen, D Howe, KJ Dallman, J Letellier, BC AF Chen, Dong Howe, Kerry J. Dallman, Jack Letellier, Bruce C. TI Corrosion of aluminium in the aqueous chemical environment of a loss-of-coolant accident at a nuclear power plant SO CORROSION SCIENCE LA English DT Article DE aluminium; XPS; SEM; alkaline corrosion; passive films AB Aluminium corrosion is a significant concern in the aqueous chemical environment of the reactor containment building following a hypothetical loss-of-coolant accident (LOCA) at a nuclear power plant. Aluminium corrosion may lead to the formation of precipitates that can, in combination with insulation debris, block the recirculation sump screens. This study investigated aluminium corrosion experimentally at both bench and pilot scale under conditions representative of several types of nuclear power plants. Evidence of corrosion was determined using aqueous concentrations measured with inductively-coupled plasma (ICP) spectrometry and surface examinations using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray photoelectron spectrometry (XPS), X-ray fluorescence (XRF), and X-ray diffraction (XRD). Corrosion proceeded slowly at pH near 7, but more rapidly at higher pH when the representative pipe insulation material was fibreglass. However, when calcium silicate pipe insulation was introduced into the system, corrosion became insignificant even at pH values near 10. Experimental evidence indicates that the calcium silicate insulation released a significant amount of silicate to the solution. Silicate formed a passivation layer composed of Al2OSiO4 with a thickness of more than 10 nm, and this layer effectively inhibited corrosion. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Howe, Kerry J.] Univ New Mexico, Dept Civil Engn, Albuquerque, NM 87131 USA. [Chen, Dong] Lamar Univ, Dept Civil Engn, Beaumont, TX 77710 USA. [Dallman, Jack; Letellier, Bruce C.] Los Alamos Natl Lab, Nucl Design & Risk Anal Grp D5, Los Alamos, NM 87545 USA. RP Howe, KJ (reprint author), Univ New Mexico, Dept Civil Engn, Albuquerque, NM 87131 USA. EM howe@unm.edu RI Howe, Kerry/B-3355-2009 NR 26 TC 11 Z9 11 U1 1 U2 8 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0010-938X J9 CORROS SCI JI Corrosion Sci. PD APR PY 2008 VL 50 IS 4 BP 1046 EP 1057 DI 10.1016/j.corsci.2007.11.034 PG 12 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 293JA UT WOS:000255330400016 ER PT J AU Ristic, RI DeYoreo, JJ Chew, CM AF Ristic, Rile I. DeYoreo, James J. Chew, Chun M. TI Does impurity-induced step-bunching invalidate key assumptions of the Cabrera - Vermilyea model? SO CRYSTAL GROWTH & DESIGN LA English DT Article ID SOLUTION GROWTH; CRYSTALS AB We show that the growth recovery mechanism of the {110} faces on crystals of the pharmaceutical paracetamol in the presence of its intrinsic impurity acetanilide occurs in the same way as in the growth of inorganic KH2PO4 (KDP) crystals with Fe(III) and AI(III) impurities, by initial movement of macrosteps while elementary steps remain pinned. This suggests that the mechanism of recovery by activation of elementary step motion assumed by Cabrera and Vermilyea (C-V) is not applicable to a diverse set of common and technologically important crystal systems. Recognizing that impurity-driven macrostep formation depends on an imbalance in the concentration ahead and behind the step, we propose a general condition that must be met for a crystal-impurity system to behave according to the C-V predictions. C1 [Ristic, Rile I.; Chew, Chun M.] Univ Sheffield, Dept Chem Engn, Sheffield S1 3JD, S Yorkshire, England. [DeYoreo, James J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Ristic, RI (reprint author), Univ Sheffield, Dept Chem Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England. EM R.I.Ristic@Sheffield.ac.uk NR 17 TC 14 Z9 15 U1 3 U2 16 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1528-7483 J9 CRYST GROWTH DES JI Cryst. Growth Des. PD APR PY 2008 VL 8 IS 4 BP 1119 EP 1122 DI 10.1021/cg7010474 PG 4 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA 283PS UT WOS:000254649300010 ER PT J AU Kim, IW Giocondi, JL Orme, C Collino, S Evans, JS AF Kim, Il Won Giocondi, Jennifer L. Orme, Christine Collino, Sebastiano Evans, John Spencer TI Morphological and kinetic transformation of calcite crystal growth by prismatic-associated asprich sequences SO CRYSTAL GROWTH & DESIGN LA English DT Article ID MATRIX PROTEIN; POLYPROLINE-II; SHELL PROTEINS; NACRE; ABALONE; CARBONATE; BIOMINERALIZATION; IDENTIFICATION; ARAGONITE; DOMAINS AB Many of the interesting mechanical and materials properties of the mollusk shell are thought to stem from the prismatic calcite crystal assemblies within this composite structure. It is now evident that proteins play a major role in the formation of these assemblies. Recently, a superfamily of seven conserved prismatic layer-specific mollusk shell proteins, Asprich, were sequenced, and the conserved 42 AA C-terminal sequence region of this protein superfamily was found to introduce surface voids or porosities on calcite crystals in vitro. Using AFM imaging techniques, we further investigate the effect that this 42 AA domain (Fragment-2) and its constituent subdomains, DEAD-17 and Acidic-2, have on the morphology and growth kinetics of calcite dislocation hillocks. We find that Fragment-2 adsorbs on terrace surfaces and pins acute Steps, accelerates and then decelerates the growth of obtuse steps, forms clusters and voids on terrace surfaces, and transforms calcite hillock morphology from a rhombohedral form to a rounded one. These results exhibit interesting similarities and differences with some of the earlier findings obtained for nacreous polypeptides and proteins. The subdomains Acidic-2 and DEAD-17 were found to accelerate then decelerate obtuse steps and induce oval rather than rounded hillock morphologies. Unlike DEAD-17, Acidic-2 does form clusters on terrace surfaces and exhibits stronger obtuse velocity inhibition effects than either DEAD-17 or Fragment-2. Hence, the C-terminal Asprich sequences alter the shape of and influence the crystal growth kinetics of calcite. Interestingly, a 1:1 mixture of both subdomains induces an irregular polygonal morphology to hillocks and exhibits the highest degree of acute step pinning and obtuse step velocity inhibition. This suggests that there is some interplay between subdomains within an intra. (Fragment-2) or intermolecular (1: 1 mixture) context, and sequence interplay phenomena may be employed by biomineralization proteins to exert net effects on crystal growth and morphology. C1 [Kim, Il Won; Collino, Sebastiano; Evans, John Spencer] NYU, Ctr Biomol Mat Spect, Chem Phys Lab, New York, NY 10010 USA. [Giocondi, Jennifer L.; Orme, Christine] Lawrence Livermore Natl Lab, Dept Chem & Mat Sci, Livermore, CA 94551 USA. RP Evans, JS (reprint author), NYU, Ctr Biomol Mat Spect, Chem Phys Lab, 345 E 24th St,Room 1007, New York, NY 10010 USA. EM jse1@nyu.edu RI Orme, Christine/A-4109-2009 NR 34 TC 19 Z9 19 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1528-7483 J9 CRYST GROWTH DES JI Cryst. Growth Des. PD APR PY 2008 VL 8 IS 4 BP 1154 EP 1160 DI 10.1021/cg070099m PG 7 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA 283PS UT WOS:000254649300016 ER PT J AU Marin-Garcia, L Frontana-Uribe, BA Reyes-Grajeda, JP Stojanoff, V Serrano-Posada, HJ Moreno, A AF Marin-Garcia, Liliana Frontana-Uribe, Bernardo A. Reyes-Grajeda, Juan Pablo Stojanoff, Vivian Serrano-Posada, Hugo Javier Moreno, Abel TI Chemical recognition of carbonate anions by proteins involved in biomineralization processes and their influence on calcite crystal growth SO CRYSTAL GROWTH & DESIGN LA English DT Article ID AMINO-ACID-SEQUENCE; PASTE BIOSENSOR; IN-VITRO; MATRIX PROTEINS; MAJOR PROTEIN; EGGSHELL; ELECTROOXIDATION; MINERALIZATION; ANSOCALCIN; ELECTRODE AB In this work, we report the purification and characterization of struthiocalcins (SCA-1 and -2), two proteins isolated from the intramineral part of the ostrich's eggshell. To obtain a better insight about their solubility behavior at different temperatures in water and in buffer solution, dynamic light scattering experiments were carried out. We studied the influence of the intramineral proteins SCA-1 and SCA-2 as well as the two other proteins present in eggs such as ovocleidin-17 (OC-17) and lysozyme (Lys) on the crystal growth behavior of calcium carbonate (calcite). This study showed important changes in the crystal habit and the nucleation process of calcium carbonate. Finally, the electrochemical methods were analytically used to confirm the interaction observed in the crystallization experiments. These results sorted out our dilemma about the selectivity and chemical recognition of proteins present in the eggshell for calcium or carbonate ions. C1 [Marin-Garcia, Liliana; Frontana-Uribe, Bernardo A.; Serrano-Posada, Hugo Javier; Moreno, Abel] Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico. [Reyes-Grajeda, Juan Pablo] Inst Nacl Med Genom INMEGEN, Mexico City, DF, Mexico. [Stojanoff, Vivian] Brookhaven Natl Lab, NSLS, Upton, NY 11973 USA. RP Frontana-Uribe, BA (reprint author), Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico. EM bafrontu@servidor.unam.mx; carcamo@servidor.unam.mx RI Uribe, Bernardo/B-4660-2011; stojanoff, vivian /I-7290-2012; OI Uribe, Bernardo/0000-0003-3796-5933; stojanoff, vivian /0000-0002-6650-512X; Serrano-Posada, Hugo/0000-0002-7901-475X NR 21 TC 16 Z9 16 U1 0 U2 18 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1528-7483 J9 CRYST GROWTH DES JI Cryst. Growth Des. PD APR PY 2008 VL 8 IS 4 BP 1340 EP 1345 DI 10.1021/cg701156r PG 6 WC Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary SC Chemistry; Crystallography; Materials Science GA 283PS UT WOS:000254649300045 ER PT J AU Schwender, J AF Schwender, Joerg TI Metabolic flux analysis as a tool in metabolic engineering of plants SO CURRENT OPINION IN BIOTECHNOLOGY LA English DT Review ID BRASSICA-NAPUS EMBRYOS; MAIZE ROOT-TIPS; CENTRAL CARBOHYDRATE-METABOLISM; SEED-SPECIFIC EXPRESSION; VICIA-NARBONENSIS SEEDS; ANNUUS L. EMBRYOS; STEADY-STATE; PHOSPHOENOLPYRUVATE CARBOXYLASE; ANTISENSE-INHIBITION; ISOTOPE DISTRIBUTION AB Methods of metabolic flux analysis (MFA) provide insights into the theoretical capabilities of metabolic networks and allow probing the in vivo performance of cellular metabolism. In recent years, an increasing awareness has developed that network analysis methods within the systems biology toolbox are serving to improve our understanding and ability to manipulate metabolism. In this minireview the potential of MFA to increase the chances of success in metabolic engineering of plants is presented, recent progress related to engineering and flux analysis in central metabolism of plants is discussed, and some recent advances in flux analysis methodology are highlighted. C1 Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. RP Schwender, J (reprint author), Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. EM Schwend@bnl.gov RI Schwender, Jorg/P-2282-2014 OI Schwender, Jorg/0000-0003-1350-4171 NR 76 TC 71 Z9 72 U1 0 U2 12 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0958-1669 J9 CURR OPIN BIOTECH JI Curr. Opin. Biotechnol. PD APR PY 2008 VL 19 IS 2 BP 131 EP 137 DI 10.1016/j.copbio.2008.02.006 PG 7 WC Biochemical Research Methods; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 302PX UT WOS:000255982100009 PM 18378441 ER PT J AU Peng, JC Karpen, GH AF Peng, Jamy C. Karpen, Gary H. TI Epigenetic regulation of heterochromatic DNA stability SO CURRENT OPINION IN GENETICS & DEVELOPMENT LA English DT Review ID DROSOPHILA-MELANOGASTER HETEROCHROMATIN; EMBRYONIC AXIS SPECIFICATION; TRANSPOSABLE ELEMENTS; DAMAGE RESPONSE; FISSION YEAST; COMPLEX; GENOME; REPAIR; GENES; SIR2 AB In this review we summarize recent studies that demonstrate the importance of epigenetic mechanisms for maintaining genome integrity, specifically with respect to repeated DNAs within heterochromatin. Potential problems that arise during replication, recombination, and repair of repeated sequences are counteracted by post-translational histone modifications and associated proteins, including the cohesins. These factors appear to ensure repeat stability by multiple mechanisms: suppressing homologous recombination, controlling the three-dimensional organization of damaged repeats to reduce the probability of aberrant recombination, and promoting the use of less problematic repair pathways. The presence of such systems may facilitate repeat and chromosome evolution, and their failure can lead to genome instability, chromosome rearrangements, and the onset of pathogenesis. C1 [Peng, Jamy C.; Karpen, Gary H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Genome Biol, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. RP Karpen, GH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Genome Biol, Dept Mol & Cell Biol, 1 Cyclotron Rd,MS 84R0171, Berkeley, CA 94720 USA. EM karpen@fruitfly.org FU NHGRI NIH HHS [R01 HG000747, R01HG00747]; NIGMS NIH HHS [R01 GM061169, R01 GM061169-04, R01 GM066272] NR 50 TC 102 Z9 103 U1 0 U2 13 PU CURRENT BIOLOGY LTD PI LONDON PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND SN 0959-437X J9 CURR OPIN GENET DEV JI Curr. Opin. Genet. Dev. PD APR PY 2008 VL 18 IS 2 BP 204 EP 211 DI 10.1016/j.gde.2008.01.021 PG 8 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA 321BT UT WOS:000257279900016 PM 18372168 ER PT J AU Chen, J Zhou, J Bae, W Sanders, CK Nolan, JP Cai, H AF Chen, Jun Zhou, Jianhong Bae, Weon Sanders, Claire K. Nolan, John P. Cai, Hong TI A yEGFP-based reporter system for nigh-throughput yeast two-hybrid assay by how cytometry SO CYTOMETRY PART A LA English DT Article; Proceedings Paper CT 24th International Congress of the International-Society-for-Analytical-Cytology CY MAY 17-21, 2008 CL Budapest, HUNGARY SP Int Soc Analyt Cytol DE flow cytometry; yEGFP; EGFP; yeast two-hybrid; high throughput; cDNA library screening; fluorescence; protein-protein interaction ID GREEN FLUORESCENT PROTEIN; DIRECTED EVOLUTION; SURFACE DISPLAY; ESCHERICHIA-COLI; INTERACTOME; LIBRARIES; BIOLOGY; SPECIFICITY; EXPRESSION; ANTIBODIES AB The yeast two-hybrid (Y2H) assay is a widely used method to study protein-protein interactions, a major objective in postgenome research. Despite the tremendous utility of the Y2H assay, several issues including accuracy, speed, automation, and cost-effectiveness limit its application in high-throughput analysis. We have created an improved Y2H assay reporter system by integrating the codon-optimized yeast enhanced green fluorescent protein (yEGFP) gene into the ADE2 locus of the AH109 yeast strain and evaluated reporter expression using the strong and weak triggers via flow cytometry. We also performed flow cytometry-based Y2H assays in liquid cultures as well as in a cDNA library screening. We have shown that yEGFP, but not EGFP is a sensitive Y2H reporter for flow cytometric detection. We also show that this yEGFP-based Y2H could be easily adapted to high-throughput format without conventional agar plating. Moreover, our data demonstrate that this system can be used for cDNA library screening. We have developed sensitive and efficient flow cytometry-based Y2H assay system that is well suited for large-scale protein-protein interaction identification and characterization. When compared with the conventional plate and filter membrane-based nutrient and colorimetric analysis, our flow cytometric assay offers convenient, quantitative, and faster reporter analysis compatible with existing liquid handling robots. (C) 2008 International Society for Analytical Cytology. C1 Los Alamos Natl Lab, Natl Flow Cytometry Resource, Los Alamos, NM 87545 USA. La Jolla Bioengn Inst, La Jolla, CA 92037 USA. RP Cai, H (reprint author), Los Alamos Natl Lab, Natl Flow Cytometry Resource, Mail Stop M888, Los Alamos, NM 87545 USA. EM cai_hong@lanl.gov FU NCRR NIH HHS [2P41RR01315]; NIBIB NIH HHS [EB003824] NR 36 TC 17 Z9 21 U1 0 U2 4 PU WILEY-LISS PI HOBOKEN PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 1552-4922 J9 CYTOM PART A JI Cytom. Part A PD APR PY 2008 VL 73A IS 4 BP 312 EP 320 DI 10.1002/cyto.a.20525 PG 9 WC Biochemical Research Methods; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 284IB UT WOS:000254699000007 PM 18307271 ER PT J AU Scarpazza, DP Villa, O Petrini, F AF Scarpazza, Daniele Paolo Villa, Oreste Petrini, Fabrizio TI String search on multicore processors SO DR DOBBS JOURNAL LA English DT Article C1 [Scarpazza, Daniele Paolo; Villa, Oreste; Petrini, Fabrizio] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Scarpazza, DP (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM scarpaz@scarpaz.com NR 0 TC 0 Z9 0 U1 0 U2 0 PU MILLER FREEMAN, INC PI SAN FRANCISCO PA 600 HARRISON ST,, SAN FRANCISCO, CA 94107 USA SN 1044-789X J9 DR DOBBS J JI Dr. Dobbs J. PD APR PY 2008 VL 33 IS 4 BP 20 EP + PG 6 WC Computer Science, Software Engineering SC Computer Science GA 276YD UT WOS:000254178700005 ER PT J AU Svec, F AF Svec, Frantisek TI Stellan Hjerten's contribution to the development of monolithic stationary phases SO ELECTROPHORESIS LA English DT Review DE continuous bed; electrochronnatography; HPLC; microfluidic devices; monolith ID PERFORMANCE LIQUID-CHROMATOGRAPHY; CONTINUOUS POLYMER BEDS; HYDROPHOBIC-INTERACTION CHROMATOGRAPHY; CAPILLARY ELECTROCHROMATOGRAPHY; EXCHANGE CHROMATOGRAPHY; HYBRID MICRODEVICE; SEPARATION MEDIA; UV-DETECTION; PROTEINS; FLOW AB This overview is presented to celebrate the birthday of one of the luminaries of the separation science and my friend - Stellan Hjerten. He made significant contributions to a variety of areas in separation science such as electrophoresis, LC, and CEC to name just a few. Since the scope of his work was enormous, this review will focus only on a single aspect of his scientific activities, the design and applications of monolithic materials. During the years starting from 1989, Stellan Hjerten published many excellent papers concerning the preparation of acrylamide chemistry-based monoliths and their use in both micro-HPLC and CEC. The following text details his works in the field. C1 EO Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Svec, F (reprint author), EO Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA. EM fsvec@lbl.gov FU NIGMS NIH HHS [GM44885, R01 GM044885, R01 GM044885-15] NR 30 TC 11 Z9 12 U1 2 U2 11 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 0173-0835 J9 ELECTROPHORESIS JI Electrophoresis PD APR PY 2008 VL 29 IS 8 BP 1593 EP 1603 DI 10.1002/elps.200700569 PG 11 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA 298QV UT WOS:000255703100002 PM 18383033 ER PT J AU Okinaka, RT Henrie, M Hill, KK Lowery, K van Ert, M Pearson, T Schupp, J Kenefic, L Beaudry, J Hofstadler, SA Jackson, PJ Keim, P AF Okinaka, Richard T. Henrie, Melinda Hill, Karen K. Lowery, KristinS. van Ert, Matthew Pearson, Talima Schupp, James Kenefic, Leo Beaudry, Jodi Hofstadler, Steven A. Jackson, Paul J. Keim, Paul TI Single nucleotide polymorphism typing of Bacillus anthracis from Sverdlovsk tissue SO EMERGING INFECTIOUS DISEASES LA English DT Article ID GENETIC DIVERSITY; OUTBREAK; BIAS AB A small number of conserved canonical single nucleotide polymorphisms (canSNP) that define major phylogenetic branches for Bacillus anthracis were used to place a Sverdlovsk patient's B. anthracis genotype into 1 of 12 subgroups. Reconstruction of the pagA gene also showed a unique SNP that defines a new lineage for B. anthracis. C1 [Okinaka, Richard T.; van Ert, Matthew; Pearson, Talima; Schupp, James; Kenefic, Leo; Beaudry, Jodi; Keim, Paul] No Arizona Univ, Dept Biol Sci, Flagstaff, AZ 86011 USA. [Okinaka, Richard T.; Henrie, Melinda; Hill, Karen K.; Jackson, Paul J.; Keim, Paul] Los Alamos Natl Lab, Los Alamos, NM USA. [Keim, Paul] Translat Genom Res Inst, Phoenix, AZ USA. [Jackson, Paul J.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Lowery, KristinS.; Hofstadler, Steven A.] Ibis Biosci Inc, Carlsbad, CA USA. RP Keim, P (reprint author), No Arizona Univ, Dept Biol Sci, Box 5640, Flagstaff, AZ 86011 USA. EM paul.keim@nau.edu RI Keim, Paul/A-2269-2010; OI Wren, Melinda/0000-0003-4714-2287 NR 15 TC 18 Z9 19 U1 0 U2 4 PU CENTER DISEASE CONTROL PI ATLANTA PA ATLANTA, GA 30333 USA SN 1080-6040 J9 EMERG INFECT DIS JI Emerg. Infect. Dis PD APR PY 2008 VL 14 IS 4 BP 653 EP 656 PG 4 WC Immunology; Infectious Diseases SC Immunology; Infectious Diseases GA 282VJ UT WOS:000254595000020 PM 18394287 ER PT J AU du Can, SDR Price, L AF du Can, Stephane de Ia Rue Price, Lynn TI Sectoral trends in global energy use and greenhouse gas emissions SO ENERGY POLICY LA English DT Article DE primary energy; greenhouse gas emissions trends; sectoral energy consumption AB Integrated assessment models have been used to project both baseline and mitigation greenhouse gas emissions scenarios. Results of these scenarios are typically presented for a number of world regions and end-use sectors, such as industry, transport, and buildings. Analysts interested in particular technologies and policies, however, require more detailed information to understand specific mitigation options in relation to business-as-usual trends. This paper presents sectoral trend for two of the scenarios produced by the Intergovernmental Panel on Climate Change's Special Report on Emissions Scenarios. Global and regional historical trends in energy use and carbon dioxide emissions over the past 30 years are examined and contrasted with projections over the next 30 years. Macro-activity indicators are analyzed as well as trends in sectoral energy and carbon demand. This paper also describes a methodology to calculate primary energy and carbon dioxide emissions at the sector level, accounting for the full energy and emissions due to sectoral activities. Published by Elsevier Ltd. C1 [du Can, Stephane de Ia Rue; Price, Lynn] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Technol, Berkeley, CA 94720 USA. RP du Can, SDR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Technol, MS 90-4000,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM sadelarueducan@lbl.gov; lkprice@lbl.ppv NR 14 TC 28 Z9 28 U1 1 U2 16 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0301-4215 J9 ENERG POLICY JI Energy Policy PD APR PY 2008 VL 36 IS 4 BP 1386 EP 1403 DI 10.1016/j.enpol.2007.12.017 PG 18 WC Energy & Fuels; Environmental Sciences; Environmental Studies SC Energy & Fuels; Environmental Sciences & Ecology GA 288DG UT WOS:000254965800014 ER PT J AU Winn, RN Maieske, AJ Jagoe, CH Glenn, TC Smith, MH Norris, MB AF Winn, Richard N. Maieske, Audrey J. Jagoe, Charles H. Glenn, Travis C. Smith, Michael H. Norris, Michelle B. TI Transgenic lambda medaka as a new model for germ cell mutagenesis SO ENVIRONMENTAL AND MOLECULAR MUTAGENESIS LA English DT Article DE germline; genomic instability; mutations; cll gene ID VERTEBRATE GENOME EVOLUTION; INDUCED SPECIFIC-LOCUS; IN-VIVO MUTATIONS; F-1 MICE BORN; ORYZIAS-LATIPES; BACTERIOPHAGE-LAMBDA; TRANSGENERATIONAL MUTATION; GENE MAP; FISH; MOUSE AB To address the need for improved approaches to study mutations transmitted to progeny from mutagen-exposed parents, we evaluated lambda transgenic medaka, a small fish that carries the cll mutation target gene, as a new model for germ cell mutagenesis. Mutations in the cll gene in progeny derived from ethyl-nitrosourea (ENU)-exposed males were readily detected. Frequencies of mutant offspring, proportions of mosaic or whole body mutant offspring, and mutational spectra differed according to germ cell stage exposed to ENU. Postmeiotic germ cells (spermatozoa/late spermatids) generated a higher frequency of mutant offspring (11%) compared to premeiotic germ cells (3.5%). Individuals with cll mutant frequencies (MF) elevated more than threefold above the spontaneous MF (3 x 10(-5)) in the range of 10(-4) to 10(-3) were mosaic mutant offspring, whereas those with MFs approaching 1 x 10(-2) were whole body mutant offspring. Mosaic mutant offspring comprised the majority of mutant offspring derived from postmeiotic germ cells, and unexpectedly, from spermatogonial stem cells. Mutational spectra comprised of two different mutations, but at identical sites were unusual and characteristic of delayed mutations, in which fixation of a second mutation was delayed following fertilization. Delayed mutations and prevalence of mosaic mutant offspring add to growing evidence that implicates germ cells in mediating processes postfertilization that contribute to genomic instability in progeny. This model provides an efficient and sensitive approach to assess germ cell mutations, expands opportunities to increase understanding of fundamental mechanisms of mutagenesis, and provides a means for improved assessment of potential genetic health risks. C1 [Winn, Richard N.; Norris, Michelle B.] Univ Georgia, Warnell Sch Forestry & Nat Resources, Aquat Biotechnol & Environm Lab, Athens, GA 30602 USA. [Maieske, Audrey J.; Jagoe, Charles H.; Glenn, Travis C.; Smith, Michael H.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC USA. [Maieske, Audrey J.] George Washington Univ, Washington, DC USA. RP Winn, RN (reprint author), Univ Georgia, Warnell Sch Forestry & Nat Resources, Aquat Biotechnol & Environm Lab, 2580 Devils Ford Rd, Athens, GA 30602 USA. EM rwinn@uga.edu RI Glenn, Travis/A-2390-2008 FU NCRR NIH HHS [RR11733] NR 58 TC 13 Z9 13 U1 1 U2 5 PU WILEY-LISS PI HOBOKEN PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 0893-6692 J9 ENVIRON MOL MUTAGEN JI Environ. Mol. Mutagen. PD APR PY 2008 VL 49 IS 3 BP 173 EP 184 DI 10.1002/em.20364 PG 12 WC Environmental Sciences; Genetics & Heredity; Toxicology SC Environmental Sciences & Ecology; Genetics & Heredity; Toxicology GA 281DT UT WOS:000254477800002 PM 18213652 ER PT J AU Lesaulnier, C Papamichail, D McCorkle, S Ollivier, B Skiena, S Taghavi, S Zak, D van der Lelie, D AF Lesaulnier, Celine Papamichail, Dimitris McCorkle, Sean Ollivier, Bernard Skiena, Steven Taghavi, Safiyh Zak, Donald van der Lelie, Daniel TI Elevated atmospheric CO2 affects soil microbial diversity associated with trembling aspen SO ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID 16S RIBOSOMAL-RNA; GRADIENT GEL-ELECTROPHORESIS; CARBON-DIOXIDE; COMMUNITY COMPOSITION; POPULUS-TREMULOIDES; NITROGEN; MARINE; PHYLUM; PLANTS; DECOMPOSITION AB The effects of elevated atmospheric CO2 (560 p.p.m.) and subsequent plant responses on the soil microbial community composition associated with trembling aspen was assessed through the classification of 6996 complete ribosomal DNA sequences amplified from the Rhinelander WI free-air CO2 and O-3 enrichment (FACE) experiments microbial community metagenome. This in-depth comparative analysis provides an unprecedented, detailed and deep branching profile of population changes incurred as a response to this environmental perturbation. Total bacterial and eukaryotic abundance does not change; however, an increase in heterotrophic decomposers and ectomycorrhizal fungi is observed. Nitrate reducers of the domain bacteria and archaea, of the phylum Crenarchaea, potentially implicated in ammonium oxidation, significantly decreased with elevated CO2. These changes in soil biota are evidence for altered interactions between trembling aspen and the microorganisms in its surrounding soil, and support the theory that greater plant detritus production under elevated CO2 significantly alters soil microbial community composition. C1 [Lesaulnier, Celine; Papamichail, Dimitris; McCorkle, Sean; Taghavi, Safiyh; van der Lelie, Daniel] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Lesaulnier, Celine; Ollivier, Bernard] Univ Provence & Mediterranee, ESIL, IRD, UMR 180,IFR BAIM, F-13288 Marseille 09, France. [Papamichail, Dimitris; Skiena, Steven] SUNY Stony Brook, Dept Comp Sci, Stony Brook, NY 11794 USA. [Papamichail, Dimitris] Univ Miami, Dept Comp Sci, Coral Gables, FL 33124 USA. [Zak, Donald] Univ Michigan, Sch Nat Resources & Environm, Ann Arbor, MI 48109 USA. [Zak, Donald] Univ Michigan, Dept Ecol & Evolutionary Biol, Ann Arbor, MI 48109 USA. RP van der Lelie, D (reprint author), Brookhaven Natl Lab, Dept Biol, Bldg 463, Upton, NY 11973 USA. EM vdlelied@bnl.gov RI Papamichail, Dimitris/A-5712-2010; Ducey, Thomas/A-6493-2011; Zak, Donald/C-6004-2012; Ollivier, Bernard/I-6150-2016 NR 74 TC 142 Z9 144 U1 3 U2 64 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 1462-2912 J9 ENVIRON MICROBIOL JI Environ. Microbiol. PD APR PY 2008 VL 10 IS 4 BP 926 EP 941 DI 10.1111/j.1462-2920.2007.01512.x PG 16 WC Microbiology SC Microbiology GA 276EM UT WOS:000254124100011 PM 18218029 ER PT J AU Gustafson, WI Berg, LK Easter, RC Ghan, SJ AF Gustafson, William I., Jr. Berg, Larry K. Easter, Richard C. Ghan, Steven J. TI The Explicit-Cloud Parameterized-Pollutant hybrid approach for aerosol-cloud interactions in multiscale modeling framework models: tracer transport results SO ENVIRONMENTAL RESEARCH LETTERS LA English DT Article DE aerosols; clouds; global climate modeling ID SHALLOW CUMULUS CONVECTION; BOUNDARY-LAYER; MICROPHYSICS; ENTRAINMENT; SCHEME AB All estimates of aerosol indirect effects on the global energy balance have either completely neglected the influence of aerosol on convective clouds or treated the influence in a highly parameterized manner. Embedding cloud-resolving models (CRMs) within each grid cell of a global model provides a multiscale modeling framework for treating both the influence of aerosols on convective as well as stratiform clouds and the influence of clouds on the aerosol, but treating the interactions explicitly by simulating all aerosol processes in the CRM is computationally prohibitive. An alternate approach is to use horizontal statistics ( e. g., cloud mass flux, cloud fraction, and precipitation) from the CRM simulation to drive a single-column parameterization of cloud effects on the aerosol and then use the aerosol profile to simulate aerosol effects on clouds within the CRM. Here, we present results from the first component of the Explicit-Cloud Parameterized-Pollutant parameterization to be developed, which handles vertical transport of tracers by clouds. A CRM with explicit tracer transport serves as a benchmark. We show that this parameterization, driven by the CRM's cloud mass fluxes, reproduces the CRM tracer transport significantly better than a single- column model that uses a conventional convective cloud parameterization. C1 [Gustafson, William I., Jr.; Berg, Larry K.; Easter, Richard C.; Ghan, Steven J.] Pacific NW Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA. RP Gustafson, WI (reprint author), Pacific NW Natl Lab, Atmospher Sci & Global Change Div, POB 999,MSIN K9-30, Richland, WA 99352 USA. EM William.Gustafson@pnl.gov RI Gustafson, William/A-7732-2008; Berg, Larry/A-7468-2016; Ghan, Steven/H-4301-2011 OI Gustafson, William/0000-0001-9927-1393; Berg, Larry/0000-0002-3362-9492; Ghan, Steven/0000-0001-8355-8699 NR 24 TC 15 Z9 15 U1 0 U2 6 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1748-9326 J9 ENVIRON RES LETT JI Environ. Res. Lett. PD APR-JUN PY 2008 VL 3 IS 2 AR 025005 DI 10.1088/1748-9326/3/2/025005 PG 7 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 319PX UT WOS:000257177300015 ER PT J AU Menon, S Unger, N Koch, D Francis, J Garrett, T Sednev, I Shindell, D Streets, D AF Menon, Surabi Unger, Nadine Koch, Dorothy Francis, Jennifer Garrett, Tim Sednev, Igor Shindell, Drew Streets, David TI Aerosol climate effects and air quality impacts from 1980 to 2030 SO ENVIRONMENTAL RESEARCH LETTERS LA English DT Article DE aerosols; ozone; radiative forcing ID BLACK CARBON; EMISSIONS; CLOUDS; SENSITIVITY; SIMULATIONS; OZONE; INDIA; CHINA AB We investigate aerosol effects on climate for 1980, 1995 ( meant to reflect present day) and 2030 using the NASA Goddard Institute for Space Studies climate model coupled to an on-line aerosol source and transport model with interactive oxidant and aerosol chemistry. Aerosols simulated include sulfates, organic matter ( OM), black carbon ( BC), sea-salt and dust and, additionally, the amount of tropospheric ozone is calculated, allowing us to estimate both changes to air quality and climate for different time periods and emission amounts. We include both the direct aerosol effect and indirect aerosol effects for liquid-phase clouds. Future changes for the 2030 A1B scenario are examined, focusing on the Arctic and Asia, since changes are pronounced in these regions. Our results for the different time periods include both emission changes and physical climate changes. We find that the aerosol indirect effect ( AIE) has a large impact on photochemical processing, decreasing ozone amount and ozone forcing, especially for the future ( 2030-1995). Ozone forcings increase from 0 to 0.12 W m(-2) and the total aerosol forcing decreases from -0.10 to -0.94W m(-2) ( AIE decreases from -0.13 to -0.68W m(-2)) for 1995-1980 versus 2030-1995. Over the Arctic we find that compared to ozone and the direct aerosol effect, the AIE contributes the most to net radiative flux changes. The AIE, calculated for 1995-1980, is positive (1.0 W m(-2)), but the magnitude decreases (-0.3Wm(-2)) considerably for the future scenario. Over Asia, we evaluate the role of biofuel- and transportation- based emissions ( for BC and OM) via a scenario ( 2030A) that includes a projected increase ( factor of 2) in biofuel- and transport-based emissions for 2030 A1B over Asia. Projected changes from present day due to the 2030A emissions versus 2030 A1B are a factor of 4 decrease in summertime precipitation in Asia. Our results are sensitive to emissions used. Uncertainty in present-day emissions suggests that future climate projections warrant particular scrutiny. C1 [Menon, Surabi; Sednev, Igor] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Unger, Nadine; Koch, Dorothy; Shindell, Drew] Columbia Univ, New York, NY USA. [Unger, Nadine; Koch, Dorothy; Shindell, Drew] NASA, Goddard Inst Space Studies, New York, NY 10025 USA. [Francis, Jennifer] Rutgers State Univ, New Brunswick, NJ 08903 USA. [Garrett, Tim] Univ Utah, Salt Lake City, UT USA. [Streets, David] Argonne Natl Lab, Argonne, IL 60439 USA. RP Menon, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM smenon@lbl.gov RI Shindell, Drew/D-4636-2012; Unger, Nadine/M-9360-2015; OI Streets, David/0000-0002-0223-1350 NR 38 TC 30 Z9 31 U1 1 U2 24 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1748-9326 J9 ENVIRON RES LETT JI Environ. Res. Lett. PD APR-JUN PY 2008 VL 3 IS 2 AR 024004 DI 10.1088/1748-9326/3/2/024004 PG 12 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 319PX UT WOS:000257177300005 ER PT J AU Spichtinger, P Cziczo, DJ AF Spichtinger, Peter Cziczo, Daniel J. TI Aerosol-cloud interactions - a challenge for measurements and modeling at the cutting edge of cloud-climate interactions SO ENVIRONMENTAL RESEARCH LETTERS LA English DT Editorial Material C1 [Spichtinger, Peter] ETH, Zurich, Switzerland. [Cziczo, Daniel J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Spichtinger, P (reprint author), ETH, Zurich, Switzerland. RI Spichtinger, Peter/F-5587-2014 OI Spichtinger, Peter/0000-0003-4008-4977 NR 0 TC 10 Z9 10 U1 0 U2 6 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1748-9326 J9 ENVIRON RES LETT JI Environ. Res. Lett. PD APR-JUN PY 2008 VL 3 IS 2 AR 025002 DI 10.1088/1748-9326/3/2/025002 PG 1 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 319PX UT WOS:000257177300012 ER PT J AU Francis, AJ Dodge, CJ Gillow, JB AF Francis, Arokiasamy J. Dodge, Cleveland J. Gillow, Jeffrey B. TI Reductive dissolution of Pu(IV) by Clostridium sp under anaerobic conditions SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID FINE-STRUCTURE SPECTROSCOPY; MICROBIAL DISSOLUTION; TRENCH LEACHATES; HYDROUS OXIDE; PLUTONIUM; SOLUBILITY; BACTERIA; ACTINIDES; WATER; SIDEROPHORES AB An anaerobic, gram positive, spore-forming bacterium Clostridium sp., common in soils and wastes, capable of reduction of Fe(III) to Fe(II), to Mn(II), Tc(VII) to Tc(IV), and U(VI) to U(IV), reduced Pu(IV) to Pu(III). Addition of Pu-242 (IV)-nitrate to the bacterial growth medium at pH 6.4 resulted in the precipitation of Pu as amorphous Pu(OH)(4) due to hydrolysis and polymerization reactions. The Pu (1 x 10(-5) M) had no effect upon growth of the bacterium as evidenced by glucose consumption; carbon dioxide and hydrogen production; a decrease in pH of the medium from 6.4 to 3.0 due to production of acetic and butyric acids from glucose fermentation; and a change in the Eh of the culture medium from +50 to -180 mV. Commensurate with bacterial growth, Pu was rapidly solubilized as evidenced by an increase in Pu concentration in solution which passed through a 0.03 mu m filtration. Selective solvent extraction of the culture by thenoyltrifluoroacetone (TTA) indicated the presence of a reduced Pu species in the soluble fraction. X-ray absorption near edge spectroscopic (XANES) analysis of Pu in the culture sample at the Pu L-III absorption edge (18.054 keV) showed a shift of -3 e V compared to a Pu(IV) standard indicating reduction of Pu(IV) to Pu(III). These results suggest that, although Pu generally exists as insoluble Pu(IV) in the environment, under appropriate conditions, anaerobic microbial activity could affect the long-term stability and mobility of Pu by its reductive dissolution. C1 [Francis, Arokiasamy J.; Dodge, Cleveland J.] Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA. RP Francis, AJ (reprint author), Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA. EM francis1@bnl.gov NR 48 TC 27 Z9 27 U1 2 U2 17 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD APR 1 PY 2008 VL 42 IS 7 BP 2355 EP 2360 DI 10.1021/es072016w PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 281JN UT WOS:000254492800025 PM 18504965 ER PT J AU Morin, G Ona-Nguema, G Wang, YH Menguy, N Juillot, F Proux, O Guyot, F Calas, G Brown, GE AF Morin, Guillaume Ona-Nguema, Georges Wang, Yuheng Menguy, Nicolas Juillot, Farid Proux, Olivier Guyot, Francois Calas, Georges Brown, Gordon E., Jr. TI Extended X-ray absorption fine structure analysis of arsenite and arsenate adsorption on maghemite SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID ACID-MINE DRAINAGE; SURFACE COMPLEXATION; EXAFS SPECTROSCOPY; ARSENIC(III); FERRIHYDRITE; LEPIDOCROCITE; MAGNETITE; GOETHITE; AS(V); MECHANISMS AB maghemite-waterArsenic sorption onto maghemite potentially contributes to arsenic retention in magnetite-based arsenic removal processes because maghemite is the most common oxidation product of magnetite and may form a coating on magnetite surfaces. Such a sorption reaction could also favor arsenic immobilization at redox boundaries in groundwaters. The nature of arsenic adsorption complexes on maghemite particles, at near-neutral pH under anoxic conditions, was investigated using X-ray absorption fine structure (XAFS) spectroscopy at the As K-edge. X-ray absorption near edge structure spectra indicate that As(III) does not oxidize after 24 h in any of the sorption experiments, as already observed in previous studies of As(III) sorption on ferric (oxyhydr)oxides under anoxic conditions. The absence of oxygen in our sorption experiments also limited Fenton oxidation of As(III). Extended XAFS (EXAFS) results indicate that both As(III) and As(V) form inner-sphere complexes on the surface of maghemite, under high Surface coverage conditions (similar to 0.6 to 1.0 monolayer), with distinctly different sorption complexes for As(III) and As(V). For As(V), the EXAFS-derived As-Fe distance (similar to 3.35 +/- 0.03 angstrom) indicates the predominance of single binuclear bidentate double-corner Complexes (C-2). For As(III), the distribution of the As-Fe distance suggests a coexistence of various types of surface complexes characterized by As-Fe distances of similar to 2.90 (+/-0.03) angstrom and similar to 3.45 (+/- 0.03) A. This distribution can be interpreted as being due to a dominant contribution from bidentate binuclear double-corner complexes (C-2), with additional contributions from bidentate mononuclear edge-sharing (E-2) complexes and monodentate mononuclear corner-sharing complexes (V-1). The present results yield useful constraints on As(V) and As(III) adsorption on high surface-area powdered maghemite, which may help in modeling the behavior of arsenic at the maghemite-water interface. C1 [Morin, Guillaume; Ona-Nguema, Georges; Wang, Yuheng; Menguy, Nicolas; Juillot, Farid; Guyot, Francois; Calas, Georges] Univ Paris 07, Univ Paris 06, CNRS, UMR 7590,IMPMC, F-75015 Paris, France. [Proux, Olivier] European Synchrotron Radiat Facil, F-38043 Grenoble, France. [Brown, Gordon E., Jr.] Stanford Univ, Dept Geol & Environm Sci, Surface & Aqueous Geochem Grp, Stanford, CA 94305 USA. [Brown, Gordon E., Jr.] Stanford Synchrotron Radiat Lab, SLAC, Menlo Pk, CA 94025 USA. RP Morin, G (reprint author), Univ Paris 07, Univ Paris 06, CNRS, UMR 7590,IMPMC, 140 Rue Lourmel, F-75015 Paris, France. EM guillaume.morin@impmc.jussieu.fr RI Calas, Georges/B-2445-2012; MENGUY, Nicolas/F-5607-2012; Proux, Olivier/F-7344-2012; Wang, Yuheng/K-3988-2012; Beamline, FAME/G-9313-2012; GUYOT, Francois/C-3824-2016; JUILLOT, Farid/G-7943-2016; IMPMC, Geobio/F-8819-2016 OI Calas, Georges/0000-0003-0525-5734; MENGUY, Nicolas/0000-0003-4613-2490; Wang, Yuheng/0000-0002-1786-5970; GUYOT, Francois/0000-0003-4622-2218; NR 35 TC 61 Z9 61 U1 5 U2 63 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD APR 1 PY 2008 VL 42 IS 7 BP 2361 EP 2366 DI 10.1021/es072057s PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 281JN UT WOS:000254492800026 PM 18504966 ER PT J AU Tian, LW Lucas, D Fischer, SL Lee, SC Hammond, SK Koshland, CP AF Tian, Linwei Lucas, Donald Fischer, Susan L. Lee, S. C. Hammond, S. Katharine Koshland, Catherine P. TI Particle and gas emissions from a simulated coal-burning household fire pit SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID CARBONACEOUS AEROSOL; GREENHOUSE GASES; LUNG-CANCER; XUAN-WEI; CHINA; STOVES; SIZE; WOOD; COMBUSTION; COUNTRIES AB An open fire was assembled with firebricks to simulate the household fire pit used in rural China, and 15 different coals from this area were burned to measure the gaseous and particulate emissions. Particle size distribution was studied with a microorifice uniform-deposit impactor (MOUDI). Over 90% of the particulate mass was attributed to sub-micrometer particles. The carbon balance method was used to calculate the emission factors. Emission factors for four pollutants (particulate matter, CO2, total hydrocarbons, and NOx) were 2-4 times higher for bituminous coals than for anthracites. In past inventories of carbonaceous emissions used for climate modeling, these two types of coal were not treated separately. The dramatic emission factor difference between the two types of coal warrants attention in the future development of emission inventories. C1 [Lucas, Donald] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Tian, Linwei; Fischer, Susan L.; Hammond, S. Katharine; Koshland, Catherine P.] Univ Calif Berkeley, Sch Publ Hlth, Berkeley, CA 94720 USA. [Lee, S. C.] Hong Kong Polytech Univ, Kowloon, Hong Kong, Peoples R China. [Koshland, Catherine P.] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA. RP Lucas, D (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM d_lucas@lbl.gov RI Tian, Linwei/A-9736-2009; Lee, shun-cheng/A-1393-2014 OI Tian, Linwei/0000-0002-4739-1534; Lee, shun-cheng/0000-0001-5144-8372 FU NIEHS NIH HHS [P42ES047050-01] NR 25 TC 15 Z9 21 U1 0 U2 22 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD APR 1 PY 2008 VL 42 IS 7 BP 2503 EP 2508 DI 10.1021/es0716610 PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 281JN UT WOS:000254492800048 PM 18504988 ER PT J AU Wang, J Timchalk, C Lin, YH AF Wang, Jun Timchalk, Charles Lin, Yuehe TI Carbon nanotube-based electrochemical sensor for assay of salivary cholinesterase enzyme activity: An exposure biomarker of organophosphate pesticides and nerve agents SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID CHEMICAL WARFARE NERVE; ACETYLCHOLINESTERASE ACTIVITY; FLUORESCENCE DETECTION; IN-VITRO; BIOSENSOR; ELECTRODE; BLOOD; SPECTROMETRY; CHLORPYRIFOS; THIOCHOLINE AB Certain saliva enzymes may be useful biomarkers for detecting exposures to organophosphate pesticides and chemical nerve agents. In this regard, saliva biomonitoring offers a simple and noninvasive approach for rapidly evaluating those exposures in real time. An electrochemical sensor coupled with a microflow injection system was developed for a simple, rapid, and sensitive characterization of cholinesterase (ChE) enzyme activities in rat saliva. The electrochemical sensor is based on a carbon nanotube (CNT)-modified screen-printed carbon electrode (SPE), which is integrated into a flow cell. Because of the excellent electrocatalytic activity of the CNTs, the sensor can detect electroactive species that are produced from enzymatic reactions with extremely high sensitivity and at low potentials. The electrochemical properties of acetylcholinesterase (AChE) enzymatic products were studied using a CNT-modified SPE, and the operation parameters such as the applied potential and substrate concentration were optimized to achieve the best performance. The AChE enzyme activity was further investigated using the CNT-based electrochemical sensor with commercially available purified AChE and ChE in saliva obtained from nave rats. It is found that the calibration curve is linear over a wide range of AChE concentrations from 5 pM to 0.5 nM, and the sensor is very sensitive with the detection limit down to 2 pM. The dynamics of the ChE enzyme activity in saliva with organophosphate pesticides was further studied using this sensor. The results show that the senor can be used to characterize salivary enzyme activity and to detect the exposure to organophosphate compounds. This new CNT-based electrochemical sensor thus provides a sensitive and quantitative tool for noninvasive biomonitoring of the exposure to organophosphate pesticides and nerve agents. C1 [Wang, Jun; Timchalk, Charles; Lin, Yuehe] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Lin, YH (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM yuehe.lin@pn.gov RI Lin, Yuehe/D-9762-2011 OI Lin, Yuehe/0000-0003-3791-7587 FU NINDS NIH HHS [U01 NS058161-01]; NIOSH CDC HHS [R01 OH008173-01] NR 43 TC 69 Z9 70 U1 3 U2 34 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD APR 1 PY 2008 VL 42 IS 7 BP 2688 EP 2693 DI 10.1021/es702335y PG 6 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 281JN UT WOS:000254492800077 PM 18505017 ER PT J AU Xu, RQ Wong, J Zschack, P Hong, H Chiang, TC AF Xu, Ruqing Wong, Joe Zschack, Paul Hong, Hawoong Chiang, Tai-C. TI Soft phonons in delta-phase plutonium near the delta-alpha ' transition SO EPL LA English DT Article ID PU-GA ALLOY; X-RAY-SCATTERING; TRANSFORMATION; DELTA->ALPHA; DISPERSIONS; STABILITY; ELECTRONS AB Plutonium and its alloys exhibit complex phase diagrams that imply anomalous lattice dynamics near phase stability boundaries. Specifically, the TA [111] phonon branch in Ga-stabilized delta-Pu at room temperature shows a pronounced soft mode at the zone boundary, which suggests a possible connection to the martensitic transformation from the fcc delta-phase to the monoclinic alpha '-phase at low temperatures. This work is a study of the lattice dynamics of this system by X-ray thermal diffuse scattering. The results reveal little temperature dependence of the phonon frequencies, thus indicating that kinetic phonon softening is not responsible for this phase transition. Copyright (c) EPLA, 2008. C1 [Xu, Ruqing; Chiang, Tai-C.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Xu, Ruqing; Hong, Hawoong; Chiang, Tai-C.] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA. [Wong, Joe] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Zschack, Paul] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Xu, RQ (reprint author), Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. EM chiang@mrl.uiuc.edu RI Chiang, Tai/H-5528-2011; Xu, Ruqing/K-3586-2012 OI Xu, Ruqing/0000-0003-1037-0059 NR 29 TC 4 Z9 4 U1 0 U2 3 PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY PI MULHOUSE PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE SN 0295-5075 J9 EPL-EUROPHYS LETT JI EPL PD APR PY 2008 VL 82 IS 2 AR 26001 DI 10.1209/0295-5075/82/26001 PG 5 WC Physics, Multidisciplinary SC Physics GA 293XT UT WOS:000255369400015 ER PT J AU Costa, JS Gamez, P Black, CA Roubeau, O Teat, SJ Reedijk, J AF Costa, Jose Sanchez Gamez, Patrick Black, Cory A. Roubeau, Olivier Teat, Simon J. Reedijk, Jan TI Chemical modification of a bridging ligand inside a metal-organic framework while maintaining the 3D structure SO EUROPEAN JOURNAL OF INORGANIC CHEMISTRY LA English DT Article DE metal-organic frameworks; post-synthetic modifications; crystal engineering; X-ray structures; functional cavities ID COORDINATION POLYMERS; STORAGE; MOLECULES; POROSITY; DESIGN AB A new metal-organic framework (MOF) with amino groups situated inside the pores has been synthesized. This MOF has been modified by post-synthesis with two different functionalities. The crystal structures of the two functionalized MOFs clearly demonstrate that it is possible to transform the cavities of a MOE without modifying its original 3D structure. These unprecedented results open up tremendous possibilities in the field of MOE chemistry because many potential applications in the fields of catalysis, material science or nanochemistry can be envisaged when applying the reported synthetic pathway. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008). C1 [Costa, Jose Sanchez; Gamez, Patrick; Black, Cory A.; Reedijk, Jan] Leiden Univ, Leiden Inst Chem, Gorlaeus Labs, NL-2300 RA Leiden, Netherlands. [Roubeau, Olivier] Univ Bordeaux 1, CNRS, CRPP, F-33600 Pessac, France. [Teat, Simon J.] ALS, Berkeley Lab, Berkeley, CA 94720 USA. RP Gamez, P (reprint author), Leiden Univ, Leiden Inst Chem, Gorlaeus Labs, POB 9502, NL-2300 RA Leiden, Netherlands. EM p.gamez@chem.leidenuniv.nl RI Roubeau, Olivier/A-6839-2010; Reedijk, Jan/F-1992-2010; Gamez, Patrick/B-3610-2012; Sanchez Costa, Jose/N-9085-2014 OI Roubeau, Olivier/0000-0003-2095-5843; Reedijk, Jan/0000-0002-6739-8514; Gamez, Patrick/0000-0003-2602-9525; Sanchez Costa, Jose/0000-0001-5426-7956 NR 15 TC 108 Z9 108 U1 10 U2 66 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 1434-1948 J9 EUR J INORG CHEM JI Eur. J. Inorg. Chem. PD APR PY 2008 IS 10 BP 1551 EP 1554 DI 10.1002/ejic.200800002 PG 4 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 291WC UT WOS:000255226800001 ER PT J AU Al-Khatib, A Huebel, H Bringel, P Engelhardt, C Neusser-Neffgen, A Hagemann, GB Hansen, CR Herskind, B Sletten, G Bracco, A Camera, F Benzoni, G Fallon, P Clark, RM Carpenter, MP Janssens, RVF Khoo, TL Lauritsen, T Chowdhury, P Amro, H Singh, AK Bengtsson, R AF Al-Khatib, A. Huebel, H. Bringel, P. Engelhardt, C. Neusser-Neffgen, A. Hagemann, G. B. Hansen, C. R. Herskind, B. Sletten, G. Bracco, A. Camera, F. Benzoni, G. Fallon, P. Clark, R. M. Carpenter, M. P. Janssens, R. V. F. Khoo, T. L. Lauritsen, T. Chowdhury, P. Amro, H. Singh, A. K. Bengtsson, R. TI Transition to non-collective states at high spin in Xe-124 SO EUROPEAN PHYSICAL JOURNAL A LA English DT Article ID BA-CE-REGION; SPECTROSCOPY; BANDS AB Excited states in Xe-124 were populated in the reaction Se-82(Ca-48, 6n) Xe-124 and gamma-ray coincidence relationships were measured with the Gammasphere spectrometer. Two new bands are observed and several of the previously known bands are extended in the high-as well as in the low-spin region. Two irregular high-spin structures are also added. The irregularities are a fingerprint of a transition from collective to non-collective behaviour. Configuration assignments to the new structures are proposed on the basis of systematics and by comparing experimental properties with calculations within the framework of the cranking model. C1 [Al-Khatib, A.; Huebel, H.; Bringel, P.; Engelhardt, C.; Neusser-Neffgen, A.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany. [Hagemann, G. B.; Hansen, C. R.; Herskind, B.; Sletten, G.] Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Bracco, A.; Camera, F.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy. [Benzoni, G.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy. [Fallon, P.; Clark, R. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Carpenter, M. P.; Janssens, R. V. F.; Khoo, T. L.; Lauritsen, T.; Chowdhury, P.] Argonne Natl Lab, Argonne, IL 60439 USA. [Amro, H.] Yale Univ, New Haven, CT USA. [Singh, A. K.] Indian Inst Technol, Kharagpur 721302, W Bengal, India. [Bengtsson, R.] Lund Inst Technol, Lund, Sweden. RP Al-Khatib, A (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Nussallee 14-16, D-53115 Bonn, Germany. EM hubel@hiskp.uni-bonn.de RI Carpenter, Michael/E-4287-2015; OI Carpenter, Michael/0000-0002-3237-5734; Camera, Franco/0000-0003-1731-4834; benzoni, giovanna/0000-0002-7938-0338 NR 24 TC 9 Z9 9 U1 1 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6001 J9 EUR PHYS J A JI Eur. Phys. J. A PD APR PY 2008 VL 36 IS 1 BP 21 EP 29 DI 10.1140/epja/i2008-10570-1 PG 9 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 306LM UT WOS:000256249800004 ER PT J AU Goeke, K Guzey, V Siddikov, M AF Goeke, K. Guzey, V. Siddikov, M. TI Deeply Virtual Compton Scattering on nucleons and nuclei in the Generalized Vector Meson Dominance model SO EUROPEAN PHYSICAL JOURNAL A LA English DT Article ID HARD EXCLUSIVE ELECTROPRODUCTION; PARTON DISTRIBUTIONS; PION ELECTROPRODUCTION; HERA; PHOTOPRODUCTION; PHOTON; ENERGY; QCD AB We consider Deeply Virtual Compton Scattering (DVCS) on nucleons and nuclei in the framework of the Generalized Vector Meson Dominance (GVMD) model. We demonstrate that the GVMD model provides a good description of the HERA data on the dependence of the proton DVCS cross-section on Q(2), W (at Q(2) = 4GeV(2)) and t. At Q(2) = 8GeV(2), the soft W-behavior of the GVMD model somewhat underestimates the W-dependence of the DVCS cross-section due to the hard contribution not present in the GVMD model. We estimate 1/Q(2) power-suppressed corrections to the DVCS amplitude and the DVCS cross-section and find them large. We also make predictions for the nuclear DVCS amplitude and cross-section in the kinematics of the future Electron-Ion Collider. We predict significant nuclear shadowing, which matches well predictions of the leading-twist nuclear shadowing in DIS on nuclei. C1 [Goeke, K.; Siddikov, M.] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany. [Guzey, V.] Jefferson Lab, Ctr Theory, Newport News, VA 23606 USA. [Siddikov, M.] Uzbekistan Natl Univ, Dept Theoret Phys, Tashkent 700174, Uzbekistan. RP Goeke, K (reprint author), Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany. EM vguzey@jlab.org RI Siddikov, Marat/H-6629-2013; OI Siddikov, Marat/0000-0002-9290-3236; Guzey, Vadim/0000-0002-2393-8507 NR 54 TC 6 Z9 6 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6001 J9 EUR PHYS J A JI Eur. Phys. J. A PD APR PY 2008 VL 36 IS 1 BP 49 EP 60 DI 10.1140/epja/i2008-10549-x PG 12 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 306LM UT WOS:000256249800007 ER PT J AU Batley, JR Culling, AJ Kalmus, G Lazzeroni, C Munday, DJ Slater, MW Wotton, SA Arcidiacono, R Bocquet, G Cabibbo, N Ceccucci, A Cundy, D Falaleev, V Fidecaro, M Gatignon, L Gonidec, A Kubischta, W Norton, A Maier, A Patel, M Peters, A Balev, S Frabetti, PL Goudzovski, E Hristov, P Kekelidze, V Kozhuharov, V Litov, L Madigozhin, D Marinova, E Molokanova, N Polenkevich, I Potrebenikov, Y Stoynev, S Zinchenko, A Monnier, E Swallow, E Winston, R Rubin, P Walker, A Baldini, W Rarnusino, AC Dalpiaz, P Damiani, C Fiorini, M Gianoli, A Martini, M Petrucci, F Savrie, M Scarpa, M Wahl, H Bizzeti, A Calvetti, M Celeghini, E Iacopini, E Lenti, M Martelli, F Ruggiero, G Veltri, M Behler, M Eppard, K Kleinknecht, K Marouelli, P Masetti, L Moosbrugger, U Morales, CM Renk, B Wache, M Wanke, R Winhart, A Coward, D Dabrowski, A Martin, TF Shieh, M Szleper, M Velasco, M Wood, MD Anzivino, G Cenci, P Imbergamo, E Nappi, A Pepe, M Petrucci, MC Piccini, M Raggi, M Valdata-Nappi, M Cerri, C Collazuol, G Costantini, F DiLella, L Doble, N Fantechi, R Fiorini, L Giudici, S Lamanna, G Mannelli, I Michetti, A Pierazzini, G Sozzi, M Bloch-Devaux, B Cheshkov, C Cheze, JB De Beer, M Derre, J Marel, G Mazzucato, E Peyaud, B Vallage, B Holder, M Ziolkowski, M Bifani, S Biino, C Cartiglia, N Clemencic, M Lopez, SG Marchetto, F Dibon, H Jeitler, M Markytan, M Mikulec, I Neuhofer, G Widhalm, L AF Batley, J. R. Culling, A. J. Kalmus, G. Lazzeroni, C. Munday, D. J. Slater, M. W. Wotton, S. A. Arcidiacono, R. Bocquet, G. Cabibbo, N. Ceccucci, A. Cundy, D. Falaleev, V. Fidecaro, M. Gatignon, L. Gonidec, A. Kubischta, W. Norton, A. Maier, A. Patel, M. Peters, A. Balev, S. Frabetti, P. L. Goudzovski, E. Hristov, P. Kekelidze, V. Kozhuharov, V. Litov, L. Madigozhin, D. Marinova, E. Molokanova, N. Polenkevich, I. Potrebenikov, Y. Stoynev, S. Zinchenko, A. Monnier, E. Swallow, E. Winston, R. Rubin, P. Walker, A. Baldini, W. Rarnusino, A. Cotta Dalpiaz, P. Damiani, C. Fiorini, M. Gianoli, A. Martini, M. Petrucci, F. Savrie, M. Scarpa, M. Wahl, H. Bizzeti, A. Calvetti, M. Celeghini, E. Iacopini, E. Lenti, M. Martelli, F. Ruggiero, G. Veltri, M. Behler, M. Eppard, K. Kleinknecht, K. Marouelli, P. Masetti, L. Moosbrugger, U. Morales, C. Morales Renk, B. Wache, M. Wanke, R. Winhart, A. Coward, D. Dabrowski, A. Martin, T. Fonseca Shieh, M. Szleper, M. Velasco, M. Wood, M. D. Anzivino, G. Cenci, P. Imbergamo, E. Nappi, A. Pepe, M. Petrucci, M. C. Piccini, M. Raggi, M. Valdata-Nappi, M. Cerri, C. Collazuol, G. Costantini, F. DiLella, L. Doble, N. Fantechi, R. Fiorini, L. Giudici, S. Lamanna, G. Mannelli, I. Michetti, A. Pierazzini, G. Sozzi, M. Bloch-Devaux, B. Cheshkov, C. Cheze, J. B. De Beer, M. Derre, J. Marel, G. Mazzucato, E. Peyaud, B. Vallage, B. Holder, M. Ziolkowski, M. Bifani, S. Biino, C. Cartiglia, N. Clemencic, M. Lopez, S. Goy Marchetto, F. Dibon, H. Jeitler, M. Markytan, M. Mikulec, I. Neuhofer, G. Widhalm, L. TI New high statistics measurement of K-e4 decay form factors and pi pi scattering phase shifts SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID DIRECT CP-VIOLATION; PHOTOS MONTE-CARLO; KE4 DECAYS; EQUATION; SEARCH; BEAM; NA48 AB We report results from a new measurement of the K-e4 decay K-+/- -> pi(+)pi(-)e(+/-)nu by the NA48/2 collaboration at the CERN SPS, based on a partial sample of more than 670 000 K-e4 decays in both charged modes collected in 2003. The form factors of the hadronic current (F,G,H) and pi pi phase difference (delta=delta(s)-delta(p)) have been measured in ten independent bins of the pi pi mass spectrum to investigate their variation. A sizeable acceptance at large pi pi mass, a low background and a very good resolution contribute to an improved experimental accuracy, a factor two better than in the previous measurement, when extracting the pi pi scattering lengths a(0) (0) and a(0) (2). Under the assumption of isospin symmetry and using numerical solutions of the Roy equations, the following values are obtained in the plane (a(0) (0),a(0) (2)): a(0) (0)=0.233 +/- 0.016(stat)+/- 0.007(syst),a(0) (2)=-0.0471 +/- 0.011(stat)+/- 0.004syst. The presence of potentially large isospin effects is also considered and will allow comparison with precise predictions from Chiral Perturbation Theory. C1 [Batley, J. R.; Culling, A. J.; Kalmus, G.; Lazzeroni, C.; Munday, D. J.; Slater, M. W.; Wotton, S. A.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England. [Arcidiacono, R.; Bocquet, G.; Cabibbo, N.; Ceccucci, A.; Cundy, D.; Falaleev, V.; Fidecaro, M.; Gatignon, L.; Gonidec, A.; Kubischta, W.; Norton, A.; Maier, A.; Patel, M.; Peters, A.; Hristov, P.; Martin, T. Fonseca; Cheshkov, C.; Clemencic, M.; Lopez, S. Goy] CERN, CH-1211 Geneva 23, Switzerland. [Balev, S.; Frabetti, P. L.; Goudzovski, E.; Hristov, P.; Kekelidze, V.; Kozhuharov, V.; Litov, L.; Madigozhin, D.; Marinova, E.; Molokanova, N.; Polenkevich, I.; Potrebenikov, Y.; Stoynev, S.; Zinchenko, A.] Joint Inst Nucl Res, Dubna 141980, Russia. [Monnier, E.; Swallow, E.; Winston, R.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60126 USA. [Rubin, P.; Walker, A.] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland. [Baldini, W.; Rarnusino, A. Cotta; Dalpiaz, P.; Damiani, C.; Fiorini, M.; Gianoli, A.; Martini, M.; Petrucci, F.; Savrie, M.; Scarpa, M.; Wahl, H.] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy. [Baldini, W.; Rarnusino, A. Cotta; Dalpiaz, P.; Damiani, C.; Fiorini, M.; Gianoli, A.; Martini, M.; Petrucci, F.; Savrie, M.; Scarpa, M.; Wahl, H.] Univ Ferrara, Sez INFN, I-44100 Ferrara, Italy. [Bizzeti, A.; Calvetti, M.; Celeghini, E.; Iacopini, E.; Lenti, M.; Martelli, F.; Ruggiero, G.; Veltri, M.] Univ Florence, Dipartimento Fis, I-50125 Ferrara, Italy. [Bizzeti, A.; Calvetti, M.; Celeghini, E.; Iacopini, E.; Lenti, M.; Martelli, F.; Ruggiero, G.; Veltri, M.] Univ Florence, Sez INFN, I-50125 Ferrara, Italy. [Behler, M.; Eppard, K.; Kleinknecht, K.; Marouelli, P.; Masetti, L.; Moosbrugger, U.; Morales, C. Morales; Renk, B.; Wache, M.; Wanke, R.; Winhart, A.] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany. [Coward, D.; Dabrowski, A.; Martin, T. Fonseca; Shieh, M.; Szleper, M.; Velasco, M.; Wood, M. D.] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA. [Anzivino, G.; Cenci, P.; Imbergamo, E.; Nappi, A.; Pepe, M.; Petrucci, M. C.; Piccini, M.; Raggi, M.; Valdata-Nappi, M.] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy. [Anzivino, G.; Cenci, P.; Imbergamo, E.; Nappi, A.; Pepe, M.; Petrucci, M. C.; Piccini, M.; Raggi, M.; Valdata-Nappi, M.] Univ Perugia, Sez INFN, I-06100 Perugia, Italy. [Cerri, C.; Collazuol, G.; Costantini, F.; DiLella, L.; Doble, N.; Fantechi, R.; Fiorini, L.; Giudici, S.; Lamanna, G.; Mannelli, I.; Michetti, A.; Pierazzini, G.; Sozzi, M.] Univ Pisa, Dipartimento Fis, Scuola Normale Super Pisa, I-56100 Pisa, Italy. [Cerri, C.; Collazuol, G.; Costantini, F.; DiLella, L.; Doble, N.; Fantechi, R.; Fiorini, L.; Giudici, S.; Lamanna, G.; Mannelli, I.; Michetti, A.; Pierazzini, G.; Sozzi, M.] Univ Pisa, Sez INFN, I-56100 Pisa, Italy. [Bloch-Devaux, B.; Cheshkov, C.; Cheze, J. B.; De Beer, M.; Derre, J.; Marel, G.; Mazzucato, E.; Peyaud, B.; Vallage, B.] CEA Saclay, DSM DAPNIA, F-91191 Gif Sur Yvette, France. [Holder, M.; Ziolkowski, M.] Univ Siegen, Fachbereich Phys, D-57068 Siegen, Germany. [Arcidiacono, R.; Bifani, S.; Biino, C.; Cartiglia, N.; Clemencic, M.; Lopez, S. Goy; Marchetto, F.] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Arcidiacono, R.; Bifani, S.; Biino, C.; Cartiglia, N.; Clemencic, M.; Lopez, S. Goy; Marchetto, F.] Univ Turin, Sez INFN, I-10125 Turin, Italy. [Dibon, H.; Jeitler, M.; Markytan, M.; Mikulec, I.; Neuhofer, G.; Widhalm, L.] Osterre Akad Wissensch, Inst Hochenergiephys, A-10560 Vienna, Austria. [Monnier, E.] Univ Aix Marseille 2, CNRS, Ctr Phys Particle Marseille, IN2P3, Marseille, France. [Bizzeti, A.] Univ Modena, Ist Fis, I-41100 Modena, Italy. [Martelli, F.; Veltri, M.] Univ Urbino, Ist Fis, I-61029 Urbino, Italy. [Lazzeroni, C.] Univ Birmingham, Birmingham B15 2TT, W Midlands, England. [Cabibbo, N.] Univ Roma La Sapienza, I-00185 Rome, Italy. [Cabibbo, N.] Sez INFN, I-00185 Rome, Italy. [Cundy, D.] CNR, Ist Cosmogeofis, I-10133 Turin, Italy. [Goudzovski, E.; Ruggiero, G.] Scuola Normale Super Pisa, I-56100 Pisa, Italy. [Goudzovski, E.; Ruggiero, G.] Ist Nazl Fis Nucl, I-56100 Pisa, Italy. [Rubin, P.] George Mason Univ, Dept Phys & Astron, Fairfax, VA 22030 USA. [Masetti, L.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany. [Coward, D.] Stanford Univ, SLAC, Menlo Pk, CA 94025 USA. [Wood, M. D.] Univ Calif Los Angeles, Los Angeles, CA 90024 USA. RP Batley, JR (reprint author), Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England. RI Cenci, Patrizia/A-4071-2012; Collazuol, Gianmaria/C-5670-2012; Piccini, Mauro/G-7163-2012; Sozzi, Marco/H-1674-2011; Jeitler, Manfred/H-3106-2012; Fiorini, Massimiliano/A-5354-2015; Martelli, Filippo/P-4041-2015; Gianoli, Alberto/H-5544-2015; OI Collazuol, Gianmaria/0000-0002-7876-6124; Sozzi, Marco/0000-0002-2923-1465; Fiorini, Massimiliano/0000-0001-6559-2084; Anzivino, Giuseppina/0000-0002-5967-0952; Cotta Ramusino, Angelo/0000-0003-1727-2478; Martelli, Filippo/0000-0003-3761-8616; Gianoli, Alberto/0000-0002-2456-8667; Bloch-Devaux, Brigitte/0000-0002-2463-1232; Bifani, Simone/0000-0001-7072-4854 NR 27 TC 100 Z9 100 U1 0 U2 7 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 1434-6044 J9 EUR PHYS J C JI Eur. Phys. J. C PD APR PY 2008 VL 54 IS 3 BP 411 EP 423 DI 10.1140/epjc/s10052-008-0547-0 PG 13 WC Physics, Particles & Fields SC Physics GA 277IV UT WOS:000254206800005 ER PT J AU Ormand, WE AF Ormand, W. E. TI Microscopic approaches to nuclear structure: Configuration interaction SO EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS LA English DT Article ID MONTE-CARLO CALCULATIONS; SHELL-MODEL; CHIRAL LAGRANGIANS; FIELD; FORCES AB The configuration interaction (CI) approach to solving the nuclear many-body problem, also known as the interacting shell model, has proven to be powerful tool in understanding the structure of nuclei. The principal criticism of past applications of the shell model is the reliance on empirical tuning to interaction matrix elements. If an accurate description of nuclei far from the valley of stability, where little or no data is available, a more fundamental approach is needed. This starts with recent ab initio approaches with effective interactions in the no-core shell model (NCSM). Using effective-field theory for guidance, fully ab initio descriptions of nuclei up to O-16 with QCD based NN, NNN, and NNNN interactions will be possible within the next five years. An important task is then to determine how to use these NCSM results to develop effective interactions to describe heavier nuclei without the need to resort to an empirical retuning with every model space. Thus, it is likely that more traditional CI applications utilizing direct diagonalization and more fundamental interactions will be applicable to nuclei with perhaps up to one hundred constituents. But, these direct diagonalization CI applications will always be computationally limited due to the rapid increase in the number of configurations with particle number. Very recently, the shifted-contour method has been applied to the Auxiliary-field Monte Carlo approach to the Shell Model (AFMCSM), and preliminary applications exhibit a remarkable taming of the notorious sign problem. If the mitigation of the sign problem holds true, the AFMCSM will offer a method to compute quantum correlations to mean field applications for just about all nuclei; giving exact results for CI model spaces that can approach 10(20-25). In these lectures, I will discuss modern applications of CI to the nuclear many-body problem that have the potential to guide nuclear structure theory into the next decade. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Ormand, WE (reprint author), Lawrence Livermore Natl Lab, POB 808,L-414, Livermore, CA 94551 USA. EM ormand1@llnl.gov NR 50 TC 0 Z9 0 U1 0 U2 1 PU SPRINGER HEIDELBERG PI HEIDELBERG PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY SN 1951-6355 EI 1951-6401 J9 EUR PHYS J-SPEC TOP JI Eur. Phys. J.-Spec. Top. PD APR PY 2008 VL 156 BP 13 EP 36 DI 10.1140/epjst/e2008-00607-1 PG 24 WC Physics, Multidisciplinary SC Physics GA 292IC UT WOS:000255258700003 ER PT J AU Ghosh, AK Williams, AD Zucker, JM Mathews, JL Spinhirne, N AF Ghosh, A. K. Williams, A. D. Zucker, J. M. Mathews, J. L. Spinhirne, N. TI An experimental investigation into the acoustic characteristics of fluid-filled porous structures - A simplified model of the human skull cancellous structure SO EXPERIMENTAL MECHANICS LA English DT Article DE acoustic; fluid-filled; porous; skull; cancellous ID EX-VIVO MODEL; CORTICAL BONE; FLOW; ARCHITECTURE; STRESS AB In nature, shape and structure evolve from the struggle for better performance. Often, biological structures combine multiple beneficial properties, making research into mimicking them very complex. Presented here is a summary of observations from a series of experiments performed on a material that closely resembles the human skull bone's cancellous structure under acoustic loads. Transmission loss through flat and curved open-cell polyurethane foam samples is observed using air and water as the two interstitial fluids. Reduction in strength and stiffness caused by porosity can be recovered partially by filling the interstitial pores with a fluid. The test findings demonstrate the influence of the interstitial fluid on the mechanical characteristics of a porous structure in a quantitative manner. It is also demonstrated that the transmission loss does not depend only on the mass per unit area of the structure as predicted by acoustic mass law. Current tests also demonstrate that the transmission loss is more sensitive to the interstitial fluid than the shape and support conditions of the structures. Test observations thus support the concepts of "moisture-sensitivity of biological design" and the "law of hierarchy in natural design". C1 [Ghosh, A. K.; Mathews, J. L.; Spinhirne, N.] New Mexico Inst Min & Technol, Socorro, NM 87801 USA. [Williams, A. D.] Space Vehicle Directorate, Air Force Res Lab, Kirtland AFB, NM 87117 USA. [Zucker, J. M.] Los Alamos Natl Lab, High Explos Phys Team, Los Alamos, NM 87545 USA. RP Ghosh, AK (reprint author), New Mexico Inst Min & Technol, Socorro, NM 87801 USA. EM ashok@nmt.edu NR 27 TC 3 Z9 3 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0014-4851 EI 1741-2765 J9 EXP MECH JI Exp. Mech. PD APR PY 2008 VL 48 IS 2 BP 139 EP 152 DI 10.1007/s11340-007-9118-9 PG 14 WC Materials Science, Multidisciplinary; Mechanics; Materials Science, Characterization & Testing SC Materials Science; Mechanics GA 277SY UT WOS:000254236200001 ER PT J AU Wang, GH Barlow, RS AF Wang, Guanghua Barlow, Robert S. TI Spatial resolution effects on the measurement of scalar variance and scalar gradient in turbulent nonpremixed jet flames SO EXPERIMENTS IN FLUIDS LA English DT Article ID LENGTH SCALES; THERMAL DISSIPATION; DIFFUSION FLAME; SHEAR FLOWS; TEMPERATURE; COMBUSTION; NOISE; DERIVATIVES; SCATTERING; SYSTEM AB The effect of spatial averaging is important for scalar gradient measurements in turbulent nonpremixed flames, especially when the local dissipation length scale is small. Line imaging of Raman, Rayleigh and CO-LIF is used to investigate the effects of experimental resolution on the scalar variance and radial gradient in the near field of turbulent nonpremixed CH4/H-2/N-2 jet flames at Reynolds numbers of 15,200 and 22,800 (DLR-A and B) and in piloted CH4/air jet flames at Reynolds numbers of 13,400, 22,400 and 33,600 (Sandia flames C/D/E). The finite spatial resolution effects are studied by applying the Box filter with varying filter widths. The resulting resolution curves for both scalar variance and mean squared-gradient follow nearly the same trends as theoretical curves calculated from the model turbulence kinetic energy spectrum of Pope. The observed collapse of resolution curves of mean squared-gradient for nearly all studied cases implies the shape of the dissipation spectrum is approximately universal. Fluid transport properties are shown to have no effect on the dissipation resolution curve, which implies that the dissipation length scale inferred from the square gradient is equivalent to the length scale for the scalar dissipation rate, which includes the diffusion coefficient. With the Box filter, the required spatial resolution to resolve 98% of the mean dissipation rate is about one-two times of the dissipation cutoff length scale (analogous to the Batchelor scale in turbulent isothermal flows). The effects of resolution on the variances of mixture fraction, temperature, and the inverted Rayleigh signal are also compared. The ratio of the filtered variance to the true variance is shown to depend nearly linearly on the probe resolution. The inverted Rayleigh scattering signal can be used to study the resolution effect on temperature variance even when the Rayleigh scattering cross section is not constant. The experimental results also indicate that these laboratory scale turbulent jet flames have small effective Reynolds numbers, such that there is some direct interaction of the large (energy containing) and small (dissipative) scalar length scales, especially for the near field case at x/d = 7.5 of the piloted Sandia flames C/D/E. C1 [Wang, Guanghua; Barlow, Robert S.] Sandia Natl Labs, Combust Res Facil, Livermore, CA 94550 USA. RP Barlow, RS (reprint author), Sandia Natl Labs, Combust Res Facil, Livermore, CA 94550 USA. EM barlow@sandia.gov OI Wang, Guanghua/0000-0002-6313-663X NR 40 TC 11 Z9 11 U1 0 U2 8 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 0723-4864 J9 EXP FLUIDS JI Exp. Fluids PD APR PY 2008 VL 44 IS 4 BP 633 EP 645 DI 10.1007/s00348-007-0423-y PG 13 WC Engineering, Mechanical; Mechanics SC Engineering; Mechanics GA 277SZ UT WOS:000254236300013 ER PT J AU Sporty, JL Horalkova, L Ehrhardt, C AF Sporty, Jennifer L. Horalkova, Lenka Ehrhardt, Carsten TI In vitro cell culture models for the assessment of pulmonary drug disposition SO EXPERT OPINION ON DRUG METABOLISM & TOXICOLOGY LA English DT Review DE alveolar epithelium; bronchial epithelium; drug transporters; pulmonary drug disposition; tight junctions ID ALVEOLAR EPITHELIAL-CELLS; SURFACTANT PROTEIN-C; CYSTIC-FIBROSIS; HUMAN LUNG; RAT LUNG; II CELLS; TRACHEAL EPITHELIUM; TRANSPORT PROTEINS; AIRWAY EPITHELIUM; DELIVERY SYSTEMS AB Background: Aerosol administration of therapeutics to the respiratory system represents a significant opportunity for many classes of drugs, both small molecules and macromolecules, including recently engineered peptide and protein therapeutics. However, minimally invasive assessment of drug absorption mechanisms in vivo or from the isolated organ is prevented by the complex architecture of the lung. Thus, cell culture models of the bronchial and alveolar epithelial barriers have been developed for absorption mechanisms studies and are now widely used as in vitro screening tools. Objectives: The aim of this article is to provide an update of the published work on various in vitro models of respiratory epithelium while emphasising the advantages and limitations of each model. Methods: This review summarises recent advances in the development and characterisation of in vitro cell culture models for drug disposition studies. Conclusions: A variety of cell culture systems for modelling the respiratory epithelium have been developed and are available to the scientific community. However, to allow their full exploitation in biopharmaceutical research, the currently available models have to be further characterised, particularly regarding their expression of transporter molecules and their metabolic capabilities. C1 [Horalkova, Lenka; Ehrhardt, Carsten] Univ Dublin Trinity Coll, Sch Pharm & Pharmaceut Sci, Dublin 2, Ireland. [Sporty, Jennifer L.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94551 USA. RP Ehrhardt, C (reprint author), Univ Dublin Trinity Coll, Sch Pharm & Pharmaceut Sci, Dublin 2, Ireland. EM ehrhardc@tcd.ie RI Ehrhardt, Carsten/B-1259-2010 OI Ehrhardt, Carsten/0000-0003-0730-1829 NR 109 TC 51 Z9 51 U1 1 U2 16 PU INFORMA HEALTHCARE PI LONDON PA TELEPHONE HOUSE, 69-77 PAUL STREET, LONDON EC2A 4LQ, ENGLAND SN 1742-5255 J9 EXPERT OPIN DRUG MET JI Expert Opin. Drug Metab. Toxicol. PD APR PY 2008 VL 4 IS 4 BP 333 EP 345 DI 10.1517/17425255.4.4.333 PG 13 WC Biochemistry & Molecular Biology; Pharmacology & Pharmacy SC Biochemistry & Molecular Biology; Pharmacology & Pharmacy GA 300IS UT WOS:000255818100001 PM 18433340 ER PT J AU Bhupathi, SSV Zhao, CF McCarty, CA Krauss, RM Wilke, RA AF Bhupathi, Satya S. V. Zhao, Chengfeng McCarty, Catherine A. Krauss, Ronald M. Wilke, Russell A. TI Atorvastatin Dose-response for High-density Lipoprotein Cholesterol in a Population-Based DNA Biobank Cohort SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Bhupathi, Satya S. V.] Marshfield Clin Fdn Med Res & Educ, Marshfield, WI USA. [Zhao, Chengfeng; McCarty, Catherine A.] Marshfield Clin Res Fdn, Ctr Human Genet, Marshfield, WI USA. [Krauss, Ronald M.] Childrens Hosp Oakland, Res Inst, Oakland, CA 94609 USA. [Krauss, Ronald M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Mol Med, Berkeley, CA 94720 USA. [Wilke, Russell A.] Med Coll Wisconsin, Human & Mol Genet Ctr, Milwaukee, WI 53226 USA. [Wilke, Russell A.] Med Coll Wisconsin, Dept Med, Milwaukee, WI 53226 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467800749 ER PT J AU Bissell, MJ AF Bissell, Mina J. TI Of extracellular matrix, the genome and the microenvironment in breast cancer: No cell is an island SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Bissell, Mina J.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467805166 ER PT J AU Cate, JHD Borovinskaya, MA Pai, RD Zhang, W Schuwirth, BS Holton, JM Hirokawa, G Kaji, H Kaji, A Shoji, S Fredrick, K AF Cate, Jamie H. D. Borovinskaya, Maria A. Pai, Raj D. Zhang, Wen Schuwirth, Barbara S. Holton, James M. Hirokawa, Go Kaji, Hideko Kaji, Akira Shoji, Shinichiro Fredrick, Kurt TI Structures of the E. coli ribosome with ribosome recycling factor and antibiotics SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Cate, Jamie H. D.; Pai, Raj D.; Zhang, Wen] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Cate, Jamie H. D.; Borovinskaya, Maria A.; Holton, James M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Schuwirth, Barbara S.] London Res Inst, Canc Res UK Clare Hall Labs, London, England. [Holton, James M.] Univ Calif San Francisco, San Francisco, CA 94143 USA. [Hirokawa, Go] Natl Cardiovasc Ctr Hosp & Res Inst, Osaka, Japan. [Kaji, Hideko] Thomas Jefferson Univ, Philadelphia, PA 19107 USA. [Kaji, Akira] Univ Penn Sch Med, Philadelphia, PA USA. [Fredrick, Kurt] Ohio State Univ, Ohio State Biochem Program, Columbus, OH 43210 USA. NR 0 TC 0 Z9 0 U1 1 U2 4 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467802161 ER PT J AU Dernburg, AF Phillips, CM Sato, A AF Dernburg, Abby F. Phillips, Carolyn M. Sato, Aya TI Chromosome dynamics during meiosis SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Dernburg, Abby F.; Sato, Aya] Univ Calif Berkeley, Berkeley, CA USA. [Dernburg, Abby F.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Phillips, Carolyn/E-8305-2011 OI Phillips, Carolyn/0000-0002-6228-6468 NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467800402 ER PT J AU Ginder, ND Binkowski, DJ Chen, XM Nix, JC Fromm, HJ Honzatko, RB AF Ginder, Nathaniel D. Binkowski, Daniel J. Chen, Xiaoming Nix, Jay C. Fromm, Herbert J. Honzatko, Richard B. TI Entrapment of Phosphoryl Intermediates by SAICAR Synthetase SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Ginder, Nathaniel D.; Chen, Xiaoming; Fromm, Herbert J.; Honzatko, Richard B.] Iowa State Univ, BBMB, Ames, IA USA. [Binkowski, Daniel J.] Creighton Univ, Sch Dent, Omaha, NE 68178 USA. [Nix, Jay C.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GY UT WOS:000208467700623 ER PT J AU Kim, C Smith-Nguyen, EV Casteel, DE Sankaran, B Spraggon, G Pilz, RB Taylor, SS AF Kim, Choel Smith-Nguyen, Eric V. Casteel, Darren E. Sankaran, Banumathi Spraggon, Glen Pilz, Renate B. Taylor, Susan S. TI The first crystal structure of cyclic GMP-dependent protein kinase I beta dimerization domain reveals the molecular features of an extended leucine/isoleucine zipper SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Kim, Choel; Taylor, Susan S.] HHMI, La Jolla, CA 94720 USA. [Smith-Nguyen, Eric V.; Taylor, Susan S.] UCSD, Dept Chem & Biochem, La Jolla, CA USA. [Casteel, Darren E.; Pilz, Renate B.] UCSD, Dept Med, La Jolla, CA USA. [Casteel, Darren E.; Pilz, Renate B.] UCSD, Ctr Canc, La Jolla, CA USA. [Taylor, Susan S.] UCSD, Dept Pharma, La Jolla, CA USA. [Sankaran, Banumathi] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Spraggon, Glen] Genom Inst Novartis Res Fdn, San Diego, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 EI 1530-6860 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467809468 ER PT J AU Lee, J Kim, SH AF Lee, Jonas Kim, Sung-Hou TI High-Throughput Detergent Exchange Screening Method for Membrane Protein Crystallization SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Lee, Jonas; Kim, Sung-Hou] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Lee, Jonas; Kim, Sung-Hou] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 1 U2 3 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GY UT WOS:000208467700039 ER PT J AU Mareedu, RK Modhia, FM Krauss, RM McCarty, CA Wilke, RA AF Mareedu, Ravi K. Modhia, Falgun M. Krauss, Ronald M. McCarty, Catherine A. Wilke, Russell A. TI Statin-induced Myotoxicity: Update on Case Characteristics and Recruitment Efficiency in a Clinical Practice-based Setting SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Krauss, Ronald M.] Childrens Hosp Oakland, Res Inst, Oakland, CA 94609 USA. [Krauss, Ronald M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Mol Med, Berkeley, CA 94720 USA. [McCarty, Catherine A.] Marshfield Clin Fdn Med Res & Educ, Res Fdn, Ctr Human Genet, Marshfield, WI USA. [Wilke, Russell A.] Med Coll Wisconsin, Dept Med, Milwaukee, WI 53226 USA. [Wilke, Russell A.] Med Coll Wisconsin, Dept Pharmacol & Toxicol, Milwaukee, WI 53226 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467800321 ER PT J AU Matsui, M Wiig, J Lim, S Harake, T Lippert, R Gatzke, J Reyes, D Panosian, O Tennison, B Susoeff, M Nguyen, K Axelrod, HL Lesley, SA Meyer, CR AF Matsui, Mikiko Wiig, Jared Lim, Shannon Harake, Tala Lippert, Rachel Gatzke, Janice Reyes, David Panosian, Onnig Tennison, Brent Susoeff, Michael Nguyen, Kelly Axelrod, Herb L. Lesley, Scott A. Meyer, Christopher R. TI Probing the Active and Allosteric Sites of Thermotoga maritima ADPGlucose Pyrophosphorylase: Mutational Analyses of the glgC1 and glgC2 Proteins SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Matsui, Mikiko; Wiig, Jared; Lim, Shannon; Harake, Tala; Lippert, Rachel; Gatzke, Janice; Reyes, David; Panosian, Onnig; Tennison, Brent; Susoeff, Michael; Nguyen, Kelly; Meyer, Christopher R.] Calif State Univ Fullerton, Fullerton, CA 92634 USA. [Axelrod, Herb L.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA USA. [Lesley, Scott A.] Novartis Res Fdn, Joint Ctr Struct Genom, Scripps Res Inst, Genom Inst, San Diego, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467807761 ER PT J AU Miziorko, HM Voynova, NE Fu, ZJ Battaile, K Kim, JJP AF Miziorko, Henry M. Voynova, Natalia E. Fu, Zhuji Battaile, Kevin Kim, Jung-Ja P. TI Human mevalonate diphosphate decarboxylase: Functional tests, structural progress, and assignments of active site residues SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Miziorko, Henry M.; Voynova, Natalia E.] Univ Missouri, Kansas City, MO 64110 USA. [Voynova, Natalia E.] St Petersburg State Univ, St Petersburg, Russia. [Fu, Zhuji; Kim, Jung-Ja P.] Med Coll Wisconsin, Milwaukee, WI 53226 USA. [Battaile, Kevin] Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467800319 ER PT J AU Muehleman, C Li, J Zhong, Z AF Muehleman, Carol Li, Jun Zhong, Zhong TI Diffraction Enhanced Computed Tomographic Imaging SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Muehleman, Carol; Li, Jun] Rush Univ, Med Ctr, Chicago, IL 60612 USA. [Zhong, Zhong] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467801133 ER PT J AU Nogales, E Wang, HW Ramey, V Barnes, G Drubin, D Westermann, S AF Nogales, Eva Wang, Hong-Wei Ramey, Vincent Barnes, Georjana Drubin, David Westermann, Stefan TI Making use of dynamic instability at the microtubule-kinetochore interface SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Nogales, Eva; Wang, Hong-Wei; Ramey, Vincent] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA 94720 USA. [Nogales, Eva] HHMI UC Berkeley, Berkeley, CA USA. [Ramey, Vincent] Univ Calif Berkeley, Biophys Grad Program, Berkeley, CA USA. [Westermann, Stefan] Res Inst Mol Pathol, A-1030 Vienna, Austria. NR 0 TC 0 Z9 0 U1 1 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467801128 ER PT J AU O'Donnell, M Georgescu, RE Kuriyan, J Kong, XP AF O'Donnell, Mike Georgescu, Roxana E. Kuriyan, John Kong, Xiang-Peng TI A replicase sliding clamp bound to DNA and a novel chemical compound that inhibits DNA replication SO FASEB JOURNAL LA English DT Meeting Abstract C1 [O'Donnell, Mike; Georgescu, Roxana E.] Rockefeller Univ, HHMI, New York, NY 10021 USA. [Kuriyan, John] Univ Calif Berkeley, HHMI, Berkeley, CA 94720 USA. [Kuriyan, John] LLNL, Livermore, CA USA. [Kong, Xiang-Peng] NYU, New York, NY USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467802282 ER PT J AU Revilleza, MJR Levin, D Mage, MG Teyton, L Robinson, H Shevach, EM Natarajan, K Margulies, DH AF Revilleza, Maria Jamela R. Levin, Ditza Mage, Michael G. Teyton, Luc Robinson, Howard Shevach, Ethan M. Natarajan, Kannan Margulies, David H. TI The X-ray Structure of IAd in Complex with a Self Peptide Offers New Insights Into the Basis of Autoimmune Gastritis (AIG) SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Revilleza, Maria Jamela R.; Mage, Michael G.; Natarajan, Kannan; Margulies, David H.] NIAID, LI, MBS, Bethesda, MD 20892 USA. [Shevach, Ethan M.] NIAID, LI, NIH, Bethesda, MD 20892 USA. [Levin, Ditza] Ort Braude Engn Coll, Biotechnol Engn Dept, Karmiel, Israel. [Teyton, Luc] Scripps Res Inst, Dept Immunol, La Jolla, CA 92037 USA. [Robinson, Howard] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. RI Margulies, David/H-7089-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467807481 ER PT J AU Thomas, C Johnston, J Bryner, S Johansen, A Engelhard, M Bullock, E AF Thomas, Carin Johnston, Justin Bryner, Stephanie Johansen, Anne Engelhard, Mark Bullock, Eric TI Inhibition of mitochondrial electron transport by atmospheric ultrafine particles: ferrous iron, quinones and ROS production SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Thomas, Carin; Johnston, Justin; Bryner, Stephanie; Johansen, Anne; Bullock, Eric] Cent Washington Univ, Ellensburg, WA USA. [Engelhard, Mark] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GY UT WOS:000208467700372 ER PT J AU Zhu, J Guo, LH Lan, L Wang, GD Guo, L AF Zhu, Jie Guo, Lian Hong Lan, Li Wang, Guodong Guo, Liang TI Observing biophysical properties of swine myocardium and mitochondria with tapping mode scanning probe microscope SO FASEB JOURNAL LA English DT Meeting Abstract C1 [Zhu, Jie; Guo, Lian Hong; Wang, Guodong] NW A&F Univ, Coll Sci, Yangling, Peoples R China. [Zhu, Jie; Guo, Liang] Argonne Natl Lab, Adv Photon Source, BioCAT, Sect 18, Argonne, IL 60439 USA. [Lan, Li] Fourth Mil Med Univ, Tangdu Hosp, Xian 710032, Peoples R China. [Guo, Liang] IIT, Dept Biol Chem & Phys Sci, Chicago, IL 60616 USA. NR 3 TC 0 Z9 0 U1 1 U2 3 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0892-6638 J9 FASEB J JI Faseb J. PD APR PY 2008 VL 22 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA V25GZ UT WOS:000208467800026 ER PT J AU Kirby, J Romanini, DW Paradise, EM Keasling, JD AF Kirby, James Romanini, Dante W. Paradise, Eric M. Keasling, Jay D. TI Engineering triterpene production in Saccharomyces cerevisiae-beta-amyrin synthase from Artemisia annua SO FEBS JOURNAL LA English DT Article DE Artemisia annua; isoprenoids; metabolic; engineering; Saccharomyces cerevisiae; beta-amyrin synthase ID HMG-COA REDUCTASE; ESCHERICHIA-COLI; YEAST; BIOSYNTHESIS; ACCUMULATION; SAPONINS; OVEREXPRESSION; DEGRADATION; DIVERSITY; PATHWAY AB Using a degenerate primer designed from triterpene synthase sequences, we have isolated a new gene from the medicinal plant Artemisia annua. The predicted protein is highly similar to beta-amyrin synthases (EC 5.4.99.-), sharing amino acid sequence identities of up to 86%. Expression of the gene, designated AaBAS, in Saccharomyces cerevisiae, followed by GC/MS analysis, confirmed the encoded enzyme as a beta-amyrin synthase. Through engineering the sterol pathway in S. cerevisiae, we explore strategies for increasing triterpene production, using AaBAS as a test case. By manipulation of two key enzymes in the pathway, 3-hydroxy-3-methylglutaryl-CoA reductase and lanosterol synthase, we have improved beta-amyrin production by 50%, achieving levels of 6 mg.L-1 culture. As we have observed a 12-fold increase in squalene levels, it appears that this strain has the capacity for even higher beta-amyrin production. Options for further engineering efforts are explored. C1 [Keasling, Jay D.] Univ Calif Berkeley, Berkeley Ctr Synthet Biol, California Inst Quantitat Biomed Res, Berkeley, CA 94720 USA. [Romanini, Dante W.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Paradise, Eric M.; Keasling, Jay D.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. [Keasling, Jay D.] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. [Keasling, Jay D.] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA USA. RP Keasling, JD (reprint author), Univ Calif Berkeley, Berkeley Ctr Synthet Biol, California Inst Quantitat Biomed Res, 717 Potter St,Bldg 977,Mail Code 3224, Berkeley, CA 94720 USA. EM keasling@berkeley.edu RI Keasling, Jay/J-9162-2012 OI Keasling, Jay/0000-0003-4170-6088 NR 29 TC 49 Z9 53 U1 2 U2 17 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 1742-464X J9 FEBS J JI FEBS J. PD APR PY 2008 VL 275 IS 8 BP 1852 EP 1859 DI 10.1111/j.1742-4658.2008.06343.x PG 8 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 281LQ UT WOS:000254499500023 PM 18336574 ER PT J AU Connon, SA Koski, AK Neal, AL Wood, SA Magnuson, TS AF Connon, Stephanie A. Koski, Angie K. Neal, Andrew L. Wood, Scott A. Magnuson, Timothy S. TI Ecophysiology and geochemistry of microbial arsenic oxidation within a high arsenic, circumneutral hot spring system of the Alvord Desert SO FEMS MICROBIOLOGY ECOLOGY LA English DT Article DE Alvord Desert Basin; arsenic oxidation; Thermus; biogeochemistry; geomicrobiology; zymography ID YELLOWSTONE-NATIONAL-PARK; GEOTHERMAL WATERS; SP NOV.; RAPID OXIDATION; THERMAL WATERS; SEQUENCE DATA; GOLD MINE; GEN. NOV.; ENVIRONMENT; DIVERSITY AB Microbial metabolism of arsenic has gained considerable interest, due to the potential of microorganisms to drive arsenic cycling and significantly influence the geochemistry of naturally arsenic-rich or anthropogenically arsenic-polluted environments. Alvord Hot Spring in southeastern Oregon is a circumneutral hot spring with an average arsenic concentration of 4.5 mg L-1 (60 mu M). Hydrogeochemical analyses indicated significant arsenite oxidation, increased pH and decreased temperature along the stream channels flowing into Alvord Hot Spring. The dynamic range of pH and temperature over the length of three stream channels were 6.76-7.06 and 69.5-78.2 degrees C, respectively. Biofilm samples showed As(III) oxidation ex situ. 16S rRNA gene studies of sparse upstream biofilm indicated a dominance of bacteria related to Sulfurihydrogenibium, Thermus, and Thermocrinis. The lush downstream biofilm community included these same three groups but was more diverse with sequences related to uncultured OP10 bacterial phylum, uncultured Bacteroidetes, and an uncultured clade. Isolation of an arsenite oxidizer was conducted with artificial hot spring medium and yielded the isolate A03C, which is closely related to Thermus aquaticus based on 16S rRNA gene analysis. Thus, this study demonstrated the bacterial diversity along geochemical gradients of temperature, pH and As(III): As(V), and provided evidence of microbial arsenite oxidation within the Alvord Hot Spring system. C1 [Connon, Stephanie A.; Magnuson, Timothy S.] Idaho State Univ, Pocatello, ID 83209 USA. [Neal, Andrew L.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC USA. [Koski, Angie K.; Wood, Scott A.] Univ Idaho, Moscow, ID 83843 USA. RP Magnuson, TS (reprint author), Idaho State Univ, 650 Mem Dr, Pocatello, ID 83209 USA. EM magntimo@isu.edu RI Neal, Andrew/C-7596-2011; Connon, Stephanie/K-1959-2012 NR 55 TC 29 Z9 30 U1 3 U2 18 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0168-6496 J9 FEMS MICROBIOL ECOL JI FEMS Microbiol. Ecol. PD APR PY 2008 VL 64 IS 1 BP 117 EP 128 DI 10.1111/j.1574-6941.2008.00456.x PG 12 WC Microbiology SC Microbiology GA 272UU UT WOS:000253886700011 PM 18318711 ER PT J AU Zhang, PU Zeng, GM Zhang, GM Li, Y Zhang, BB Fan, MH AF Zhang, Panyue Zeng, Guangming Zhang, Guangming Li, Yin Zhang, Bibo Fan, Maohong TI Anaerobic co-digestion of biosolids and organic fraction of municipal solid waste by sequencing batch process SO FUEL PROCESSING TECHNOLOGY LA English DT Article DE co-digestion; biosolids; organic fraction of municipal solid waste; volatile fatty acid; biogas yield AB The co-digestion of biosolids and organic fraction of municipal solid waste was compared with the direct digestion of biosolids. Addition of organic fraction of municipal solid waste improved carbon-to-nitrogen(C/N) ratio from 8.10 to 17.68 or 20.55 in the feedstock, and led to a higher volatile fatty acid (VFA) concentration of about 1500 mg/L in the solution and a lower solution pH under 6 in the beginning 20-day during digestion. Although the total biogas yield increased by the mixed feedstock, the biogas yield peak was postponed for about 10 days and the maximum biogas yield rate was reduced. After digestion, over 30% of total solid (TS) and over 65% of volatile solid (VS) were removed. However, the COD concentration in the effluent was still higher than 2300 mg/L and needed further treatment before discharge. (c) 2007 Published by Elsevier B.V. C1 [Zhang, Panyue; Zeng, Guangming; Li, Yin; Zhang, Bibo] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China. [Zhang, Guangming] Harbin Inst Technol, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China. [Fan, Maohong] Inst Phys Res & Technol, Ames, IA 50011 USA. RP Zhang, PU (reprint author), Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China. EM zhangpy@hnu.cn RI Li, Yu-You/D-5454-2013; Li, Yu-You/A-1735-2017 NR 14 TC 23 Z9 29 U1 1 U2 18 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-3820 J9 FUEL PROCESS TECHNOL JI Fuel Process. Technol. PD APR PY 2008 VL 89 IS 4 BP 485 EP 489 DI 10.1016/j.fuproc.2007.11.013 PG 5 WC Chemistry, Applied; Energy & Fuels; Engineering, Chemical SC Chemistry; Energy & Fuels; Engineering GA 293IL UT WOS:000255328900021 ER PT J AU Penaflor, BG Ferron, JR Walker, ML Humphreys, DA Leuer, JA Piglowski, DA Johnson, RD Xiao, BJ Hahn, SH Gates, DA AF Penaflor, B. G. Ferron, J. R. Walker, M. L. Humphreys, D. A. Leuer, J. A. Piglowski, D. A. Johnson, R. D. Xiao, B. J. Hahn, S. H. Gates, D. A. TI Worldwide collaborative efforts in plasma control software development SO FUSION ENGINEERING AND DESIGN LA English DT Article; Proceedings Paper CT 6th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research CY JUN 04-08, 2007 CL Inuyama, JAPAN SP IAEA, Natl Inst Fus Sci DE tokamak; plasma control; real-time control; linux AB This presentation will describe the DIII-D collaborations with various tokamak experiments throughout the world which have adapted custom versions of the DIII-D plasma control system (PCs) software for their own use. Originally developed by General Atomics for use on the DIII-D tokamak, the PCs has been successfully installed and used for the NSTX experiment in Princeton, the MAST experiment in Culham UK, the EAST experiment in China, and the Pegasus experiment in the University of Wisconsin. In addition to these sites, a version of the PCs is currently being developed for use by the KSTAR tokamak in Korea. A well-defined and robust PCs software infrastructure has been developed to provide a common foundation for implementing the real-time data acquisition and feedback control codes. The PCs infrastructure provides a flexible framework that has allowed the PCs to be easily adapted to fulfill the unique needs of each site. The software has also demonstrated great flexibility in allowing for different computing, data acquisition and real-time networking hardware to be used. A description of the current PCs software architecture will be given along with experiences in developing and supporting the various PCs installations throughout the world. Published by Elsevier B.V. C1 [Penaflor, B. G.; Ferron, J. R.; Walker, M. L.; Humphreys, D. A.; Leuer, J. A.; Piglowski, D. A.; Johnson, R. D.] Gen Atom, San Diego, CA 92186 USA. [Xiao, B. J.] Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China. [Hahn, S. H.] Natl Fus Res Ctr, Taejon, South Korea. [Gates, D. A.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Penaflor, BG (reprint author), Gen Atom, POB 85608, San Diego, CA 92186 USA. EM penaflor@fusion.gat.com RI Xiao, Bingjia/A-1681-2017; OI Xiao, Bingjia/0000-0001-8692-2636; Walker, Michael/0000-0002-4341-994X NR 3 TC 20 Z9 20 U1 0 U2 4 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0920-3796 J9 FUSION ENG DES JI Fusion Eng. Des. PD APR PY 2008 VL 83 IS 2-3 BP 176 EP 180 DI 10.1016/j.fusengdes.2007.11.012 PG 5 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 313ZP UT WOS:000256778800004 ER PT J AU Xiao, BJ Humphreys, DA Walker, ML Hyatt, A Leuer, JA Mueller, D Penaflor, BG Pigrowski, DA Johnson, RD Welander, A Yuan, QP Wang, HZ Luo, JR Luo, ZP Liu, CY Liu, LZ Zhang, K AF Xiao, B. J. Humphreys, D. A. Walker, M. L. Hyatt, A. Leuer, J. A. Mueller, D. Penaflor, B. G. Pigrowski, D. A. Johnson, R. D. Welander, A. Yuan, Q. P. Wang, H. Z. Luo, J. R. Luo, Z. P. Liu, C. Y. Liu, L. Z. Zhang, K. TI EAST plasma control system SO FUSION ENGINEERING AND DESIGN LA English DT Article; Proceedings Paper CT 6th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research CY JUN 04-08, 2007 CL Inuyama, JAPAN SP IAEA, Natl Inst Fus Sci DE plamsa control; tokamak; diverted plasma; EAST ID RECONSTRUCTION; TOKAMAK AB Experimental advanced superconducting tokamak (EAST), the first tokomak with ITER-like fully superconductive poloidal and toroidal coils, successfully completed its engineering commission in March 2006; had its first plasma in September 2006 [B.N. Wan, et al., The first plasma of EAST, in: 21st IAEA Fusion Energy Conference, Chengdu, China, 16-21 October, 2007. [1]] and further generated diverted plasma in January 2007. The plasma control system was adapted from DIII-D plasma control system architecture and jointly developed by the DIII-D and EAST plasma control team. After briefly outlining the hardware and software architecture of the EAST plasma control system, this paper summarizes the plasma control results in the first plasma and first diverted plasma campaigns. (c) 2008 Elsevier B.V. All rights reserved. C1 [Xiao, B. J.; Yuan, Q. P.; Wang, H. Z.; Luo, J. R.; Luo, Z. P.; Liu, C. Y.; Liu, L. Z.; Zhang, K.] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China. [Humphreys, D. A.; Walker, M. L.; Hyatt, A.; Leuer, J. A.; Penaflor, B. G.; Pigrowski, D. A.; Johnson, R. D.; Welander, A.] Natl Fus Facil D3 D, Gen Atom, San Diego, CA USA. [Mueller, D.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Xiao, BJ (reprint author), Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China. EM bjxiao@ipp.ac.cn RI Xiao, Bingjia/A-1681-2017; OI Xiao, Bingjia/0000-0001-8692-2636; Walker, Michael/0000-0002-4341-994X NR 9 TC 42 Z9 45 U1 0 U2 16 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0920-3796 J9 FUSION ENG DES JI Fusion Eng. Des. PD APR PY 2008 VL 83 IS 2-3 BP 181 EP 187 DI 10.1016/j.fusengdes.2007.12.028 PG 7 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 313ZP UT WOS:000256778800005 ER PT J AU Davis, WM Mastrovito, DM Roney, PG Sichta, P AF Davis, W. M. Mastrovito, D. M. Roney, P. G. Sichta, P. TI A software Event Summation System for MDSplus SO FUSION ENGINEERING AND DESIGN LA English DT Article; Proceedings Paper CT 6th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research CY JUN 04-08, 2007 CL Inuyama, JAPAN SP IAEA, Natl Inst Fus Sci DE NSTX; MDSplus; EPICS ID EPICS AB The MDSplus data acquisition and management system uses software events for communication among interdependent processes anywhere on the network. Actions can then be triggered, such as a data-acquisition routine, or analysis or display programs waiting for data. A small amount of data, such as a shot number, can be passed with these events. Since programs sometimes need more than one data set, we developed a system on NSTX to declare composite events using logical AND and OR operations. The system is written in the IDL language, so it can be run on Linux, Macintosh or Windows platforms. Like MDSplus, the Experimental Physics and Industrial Control System (EPICS) is a core component of the NSTX software environment. The Event Summation System provides an IDL-based interface to EPICS. This permits EPICS-aware processes to be synchronized with MDSplus-aware processes, to provide, for example, engineering operators information about physics data acquisition and analysis. Reliability was a more important design consideration than performance for this system; the system's architecture includes features to support this. The system has run for weeks at a time without requiring manual intervention. Hundreds of incoming events per second can be handled reliably. All incoming and declared events are logged with a timestamp. The system can be configured easily through a single, easy-to-read text file. (c) 2007 Elsevier B.V. All fights reserved. C1 [Davis, W. M.; Mastrovito, D. M.; Roney, P. G.; Sichta, P.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Davis, WM (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM bdavis@pppl.gov OI Davis, William/0000-0003-0666-7247 NR 7 TC 1 Z9 1 U1 0 U2 1 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0920-3796 J9 FUSION ENG DES JI Fusion Eng. Des. PD APR PY 2008 VL 83 IS 2-3 BP 326 EP 329 DI 10.1016/j.fusengdes.2007.10.002 PG 4 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 313ZP UT WOS:000256778800037 ER PT J AU Lagin, LJ Bettenhausen, RC Bowers, GA Carey, RW Edwards, OD Estes, CM Demaret, RD Ferguson, SW Fisher, JM Ho, JC Ludwigsen, AP Mathisen, DG Marshall, CD Matone, JT McGuigan, DL Sanchez, RJ Stout, EA Tekle, EA Townsend, SL Van Arsdall, PJ Wilson, EF AF Lagin, L. J. Bettenhausen, R. C. Bowers, G. A. Carey, R. W. Edwards, O. D. Estes, C. M. Demaret, R. D. Ferguson, S. W. Fisher, J. M. Ho, J. C. Ludwigsen, A. P. Mathisen, D. G. Marshall, C. D. Matone, J. T. McGuigan, D. L. Sanchez, R. J. Stout, E. A. Tekle, E. A. Townsend, S. L. Van Arsdall, P. J. Wilson, E. F. TI Status of the National Ignition Facility Integrated Computer Control System (ICCS) on the path to ignition SO FUSION ENGINEERING AND DESIGN LA English DT Article; Proceedings Paper CT 6th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research CY JUN 04-08, 2007 CL Inuyama, JAPAN SP IAEA, Natl Inst Fus Sci DE National Ignition Facility; Integrated Computer Control; automation; CORBA; software frameworks AB The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory is a stadium-sized facility under construction that will contain a 192-beam, 1.8-MJ, 500-TW, ultraviolet laser system together with a 10-m diameter target chamber with room for multiple experimental diagnostics. NIF is the world's largest and most energetic laser experimental system, providing a scientific center to study inertial confinement fusion (ICF) and matter at extreme energy densities and pressures. NIF's laser beams are designed to compress fusion targets to conditions required for thermonuclear burn, liberating more energy than required to initiate the fusion reactions. NIF is comprised of 24 independent bundles of eight beams each using laser hardware that is modularized into more than 6000 line replaceable units such as optical assemblies, laser amplifiers, and multi-function sensor packages containing 60,000 control and diagnostic points. NIF is operated by the large-scale Integrated Computer Control System (ICCS) in an architecture partitioned by bundle and distributed among over 800 front-end processors and 50 supervisory servers. NEF's automated control subsystems are built from a common object-oriented software framework based on CORBA distribution that deploys the software across the computer network and achieves interoperation between different languages and target architectures. A shot automation framework has been deployed during the past year to orchestrate and automate shots performed at the NIF using the ICCS. In December 2006, a full cluster of 48 beams of NIF was fired simultaneously, demonstrating that the independent bundle control system will scale to full scale of 192 beams. At present, 72 beams have been commissioned and have demonstrated 1.4-MJ capability of infrared light. During the next 2 years, the control system will be expanded in preparation for project completion in 2009 to include automation of target area systems including final optics, target positioners and diagnostics. Additional capabilities to support fusion ignition shots in a National Ignition Campaign (NIC) beginning in 2010 will include a cryogenic target system, target diagnostics, and integrated experimental shot data analysis with tools for data visualization and archiving. This talk discusses the current status of the control system implementation and discusses the plan to complete the control system on the path to ignition. (c) 2007 Elsevier B. V. All rights reserved. C1 [Lagin, L. J.; Bettenhausen, R. C.; Bowers, G. A.; Carey, R. W.; Edwards, O. D.; Estes, C. M.; Demaret, R. D.; Ferguson, S. W.; Fisher, J. M.; Ho, J. C.; Ludwigsen, A. P.; Mathisen, D. G.; Marshall, C. D.; Matone, J. T.; McGuigan, D. L.; Sanchez, R. J.; Stout, E. A.; Tekle, E. A.; Townsend, S. L.; Van Arsdall, P. J.; Wilson, E. F.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Lagin, LJ (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94550 USA. EM lagin1@llnl.gov NR 7 TC 0 Z9 1 U1 1 U2 4 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0920-3796 J9 FUSION ENG DES JI Fusion Eng. Des. PD APR PY 2008 VL 83 IS 2-3 BP 530 EP 534 DI 10.1016/j.fusengdes.2007.09.014 PG 5 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 313ZP UT WOS:000256778800082 ER PT J AU Stout, EA Carey, RW Estes, CM Fisher, JM Lagin, LJ Mathisen, DG Reynolds, CA Sanchez, RJ AF Stout, E. A. Carey, R. W. Estes, C. M. Fisher, J. M. Lagin, L. J. Mathisen, D. G. Reynolds, C. A. Sanchez, R. J. TI CORBA-based distributed software framework for the NIF integrated computer control system SO FUSION ENGINEERING AND DESIGN LA English DT Article; Proceedings Paper CT 6th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research CY JUN 04-08, 2007 CL Inuyama, JAPAN SP IAEA, Natl Inst Fus Sci DE National Ignition Facility; NIF; CORBA; Integrated Computer Control System; eric stout; Lawrence Livermore National Laboratory; object-oriented software AB The National Ignition Facility (NIF), currently under construction at the Lawrence Livermore National Laboratory, is a stadium-sized facility containing a 192-beam, 1.8MJ, 500TW, ultra-violet laser system together with a 10-meter diameter target chamber with room for nearly 100 experimental diagnostics. The NIF is operated by the Integrated Computer Control System (ICCS) which is a scalable, framework-based control system distributed over 800 computers throughout the NIF. The framework provides templates and services at multiple levels of abstraction for the construction of software applications that communicate via CORBA (Common Object Request Broker Architecture). Object-oriented software design patterns are implemented as templates and extended by application software. Developers extend the framework base classes to model the numerous physical control points and implement specializations of common application behaviors. An estimated 140,000 software objects, each individually addressable through CORBA, will be active at full scale. Many of these objects have persistent configuration information stored in a database. The configuration data is used to initialize the objects at system start-up. Centralized server programs that implement events, alerts, reservations, data archival, name service, data access, and process management provide common system wide services. At the highest level, a model-driven, distributed shot automation system provides a flexible and scalable framework for automatic sequencing of workflow for control and monitoring of NIF shots. The shot model, in conjunction with data defining the parameters and goals of an experiment, describes the steps to be performed by each subsystem in order to prepare for and fire a NIF shot. Status and usage of this distributed framework are described. (c) 2008 Published by Elsevier B. V. C1 [Stout, E. A.; Carey, R. W.; Estes, C. M.; Fisher, J. M.; Lagin, L. J.; Mathisen, D. G.; Reynolds, C. A.; Sanchez, R. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Stout, EA (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94550 USA. EM stout6@llnl.gov NR 2 TC 4 Z9 4 U1 1 U2 1 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0920-3796 J9 FUSION ENG DES JI Fusion Eng. Des. PD APR PY 2008 VL 83 IS 2-3 BP 535 EP 538 DI 10.1016/j.fusengdes.2007.12.025 PG 4 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 313ZP UT WOS:000256778800083 ER PT J AU Casper, TA Meyer, WH Pearlstein, LD Portone, A AF Casper, T. A. Meyer, W. H. Pearlstein, L. D. Portone, A. TI ITER shape controller and transport simulations SO FUSION ENGINEERING AND DESIGN LA English DT Article; Proceedings Paper CT 6th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research CY JUN 04-08, 2007 CL Inuyama, JAPAN SP IAEA, Natl Inst Fus Sci DE ITER; controllers; free-boundary; transport; simulation ID DISCHARGES AB We currently use the CORSICA integrated modeling code for scenario studies for both the DIII-D and ITER experiments. In these simulations, free- or fixed-boundary equilibria are simultaneously converged with thermal evolution determined from transport models providing temperature and current density profiles. Using a combination of fixed boundary evolution followed by free-boundary calculation, we determine the separatrix and coil currents. We use free-boundary evolution with a state-space controller representation and transport simulation to provide feedback modeling of shape, vertical stability and profile control. In addition to a tightly coupled calculation with simulator and controller imbedded inside CORSICA, we also use a remote procedure call interface to couple the CORSICA non-linear plasma simulations to the controller environments developed within the Mathworks Matlab/Simulink environment. We present transport simulations using full shape and vertical stability control with evolution of the temperature profiles to provide simulations of the ITER controller and plasma response. (c) 2007 Elsevier B.V. All rights reserved. C1 [Casper, T. A.; Meyer, W. H.; Pearlstein, L. D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Portone, A.] EFDA0CSU Barcelona, Barcelona, Spain. RP Casper, TA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM casperl@llnl.gov NR 12 TC 16 Z9 17 U1 1 U2 6 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0920-3796 J9 FUSION ENG DES JI Fusion Eng. Des. PD APR PY 2008 VL 83 IS 2-3 BP 552 EP 556 DI 10.1016/j.fusengdes.2007.09.009 PG 5 WC Nuclear Science & Technology SC Nuclear Science & Technology GA 313ZP UT WOS:000256778800086 ER PT J AU Cutter, AD Wasmuth, JD Washington, NL AF Cutter, Asher D. Wasmuth, James D. Washington, Nicole L. TI Patterns of molecular evolution in caenorhabditis preclude ancient origins of selfing SO GENETICS LA English DT Article ID NEMATODE GENUS CAENORHABDITIS; RECURRENT LOCAL EXTINCTION; SYNONYMOUS CODON USAGE; GENETIC DIVERSITY; LINKAGE DISEQUILIBRIUM; C-ELEGANS; NUCLEOTIDE POLYMORPHISM; DELETERIOUS MUTATIONS; BACKGROUND SELECTION; ARABIDOPSIS-THALIANA AB The evolution of self-fertilization can mediate pronounced changes in genomes as a by-product of a drastic reduction in effective population size and the concomitant accumulation of slightly deleterious mutations by genetic drift. In the nematode genus Caenorhabditis, a highly selfing lifestyle has evolved twice independently, thus permitting an opportunity to test for the effects of mode of reproduction on patterns of molecular evolution on a genomic scale. Here we contrast rates of nucleotide substitution and codon usage bias among thousands of orthologous groups of genes in six species of Caenorhabditis, including the classic model organism Caenorhabditis elegans. Despite evidence that weak selection on synonymous codon usage is pervasive in the history of all species in this genus, we find little difference among species in the patterns of codon usage bias and in replacement-site substitution. Applying a model of relaxed selection on codon usage to the C. elegans and C. briggsae lineages suggests that self-fertilization is unlikely to have evolved more than similar to 4 million years ago, which is less than a quarter of the time since they shared a common ancestor with outcrossing species. We conclude that the profound changes in mating behavior, physiology, and developmental mechanisms that accompanied the transition from an obligately outcrossing to a primarily selfing mode of reproduction evolved in the not-too-distant C1 [Cutter, Asher D.] Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON M5S 3G5, Canada. [Cutter, Asher D.] Univ Toronto, Ctr Analysis Genome Evolut & Funct, Toronto, ON M5S 3G5, Canada. [Wasmuth, James D.] Hosp Sick Children, Program Mol Struct & Funct, Toronto, ON M5G 1X8, Canada. [Washington, Nicole L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Cutter, AD (reprint author), Univ Toronto, Dept Ecol & Evolutionary Biol, 25 Harbord St, Toronto, ON M5S 3G5, Canada. EM asher.cutter@utoronto.ca RI Cutter, Asher/A-5647-2009 NR 94 TC 58 Z9 58 U1 0 U2 13 PU GENETICS SOCIETY AMERICA PI BETHESDA PA 9650 ROCKVILLE AVE, BETHESDA, MD 20814 USA SN 0016-6731 EI 1943-2631 J9 GENETICS JI Genetics PD APR PY 2008 VL 178 IS 4 BP 2093 EP 2104 DI 10.1534/genetics.107.085787 PG 12 WC Genetics & Heredity SC Genetics & Heredity GA 292AT UT WOS:000255239600020 PM 18430935 ER PT J AU Shoemaker, RC Grant, D Olson, T Warren, WC Wing, R Yu, Y Kim, H Cregan, P Joseph, B Futrell-Griggs, M Nelson, W Davito, J Walker, J Wallis, J Kremitski, C Scheer, D Clifton, SW Graves, T Nguyen, H Wu, XL Luo, MC Dvorak, J Nelson, R Cannon, S Tomkins, J Schmutz, J Stacey, G Jackson, S AF Shoemaker, Randy C. Grant, David Olson, Terry Warren, Wesley C. Wing, Rod Yu, Yeisoo Kim, HyeRan Cregan, Perry Joseph, Bindu Futrell-Griggs, Montona Nelson, Will Davito, Jon Walker, Jason Wallis, John Kremitski, Colin Scheer, Debbie Clifton, Sandra W. Graves, Tina Nguyen, Henry Wu, Xiaolei Luo, Mingcheng Dvorak, Jan Nelson, Rex Cannon, Steven Tomkins, Jeff Schmutz, Jeremy Stacey, Gary Jackson, Scott TI Microsatellite discovery from BAC end sequences and genetic mapping to anchor the soybean physical and genetic maps SO GENOME LA English DT Article DE SSR; molecular marker; genome sequence; assembly; physical map ID BACTERIAL ARTIFICIAL CHROMOSOMES; GLYCINE SUBGENUS SOJA; LINKAGE MAP; DNA MARKERS; REPEAT DNA; GENOME; ELECTROPHORESIS; ASSEMBLIES; ARACHNE; GENUS AB Whole-genome sequencing of the soybean (Glycine max (L.) Merr. 'Williams 82') has made it important to integrate its physical and genetic maps. To facilitate this integration of maps, we screened 3290 microsatellites (SSRs) identified from BAC end sequences of clones comprising the 'Williams 82' physical map. SSRs were screened against 3 mapping populations. We found the AAT and ACT motifs produced the greatest frequency of length polymorphisms, ranging from 17.2% to 32.3% and from 11.8% to 33.3%, respectively. Other useful motifs include the dinucleotide repeats AG, AT, and AG, with frequency of length polymorphisms ranging from 11.2% to 18.4% (AT), 12.4% to 20.6% (AG), and 11.3% to 16.4% (GT). Repeat lengths less than 16 bp were generally less useful than repeat lengths of 40-60 bp. Two hundred and sixty-five SSRs were genetically mapped in at least one population. Of the 265 mapped SSRs, 60 came from BAC singletons not yet placed into contigs of the physical map. One hundred and ten originated in BACs located in contigs for which no genetic map location was previously known. Ninety-five SSRs came from BACs within contigs for which one or more other BACs had already been mapped. For these fingerprinted contigs (FPC) a high percentage of the mapped markers showed inconsistent map locations. A strategy is introduced by which physical and genetic map inconsistencies can be resolved using the preliminary 4 x assembly of the whole genome sequence of soybean. C1 [Shoemaker, Randy C.; Grant, David; Nelson, Rex; Cannon, Steven] USDA ARS, CICGR Unit, Dept Agron, Ames, IA 50011 USA. [Olson, Terry; Joseph, Bindu] Iowa State Univ, Dept Agron, Ames, IA 50011 USA. [Warren, Wesley C.; Davito, Jon; Walker, Jason; Wallis, John; Kremitski, Colin; Scheer, Debbie; Clifton, Sandra W.; Graves, Tina] Washington Univ, Sch Med, Genome Sequencing Ctr, St Louis, MO 63108 USA. [Wing, Rod; Yu, Yeisoo; Kim, HyeRan; Nelson, Will] Univ Arizona, Arizona Genom Inst, Dept Plant Sci, Tucson, AZ 85721 USA. [Cregan, Perry] USDA ARS, Soybean Genom & Improvement Lab, Beltsville, MD 20705 USA. [Futrell-Griggs, Montona; Jackson, Scott] Purdue Univ, Dept Agron, Beltsville, MD 20705 USA. [Nguyen, Henry; Wu, Xiaolei; Stacey, Gary] Univ Missouri, Natl Ctr Soybean Biotechnol, Dept Plant Sci, Columbia, MO 65211 USA. [Luo, Mingcheng; Dvorak, Jan] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA. [Tomkins, Jeff] Clemson Univ, Dept Biochem & Genet, Clemson, SC 29631 USA. [Schmutz, Jeremy] Stanford Univ, Sch Med, Stanford Human Genome Ctr, Joint Genome Inst,Dept Genet, Palo Alto, CA 94304 USA. RP Shoemaker, RC (reprint author), USDA ARS, CICGR Unit, Dept Agron, Ames, IA 50011 USA. EM rcsshoe@iastate.edu RI Luo, Ming-Cheng/C-5600-2011; OI Luo, Ming-Cheng/0000-0002-9744-5887; Wing, Rod/0000-0001-6633-6226 NR 37 TC 31 Z9 34 U1 2 U2 10 PU NATL RESEARCH COUNCIL CANADA-N R C RESEARCH PRESS PI OTTAWA PA BUILDING M 55, OTTAWA, ON K1A 0R6, CANADA SN 0831-2796 J9 GENOME JI Genome PD APR PY 2008 VL 51 IS 4 BP 294 EP 302 DI 10.1139/G08-010 PG 9 WC Biotechnology & Applied Microbiology; Genetics & Heredity SC Biotechnology & Applied Microbiology; Genetics & Heredity GA 283OJ UT WOS:000254645600007 PM 18356965 ER PT J AU Fenter, P Park, C Sturchio, NC AF Fenter, P. Park, C. Sturchio, N. C. TI Adsorption of Rb+ and Sr2+ at the orthoclase (001)-solution interface SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID X-RAY REFLECTIVITY; ATOMIC-FORCE MICROSCOPY; RUTILE-WATER INTERFACE; HIGH-RESOLUTION; URANYL SORPTION; ABSORPTION SPECTROSCOPY; LABRADORITE FELDSPAR; URANIUM(VI) SORPTION; SURFACE-COMPLEXATION; PROTON ADSORPTION AB Adsorption of Rb+ and Sr2+ at the orthoclase (001)-solution interface is probed with high-resolution X-ray reflectivity and resonant anomalous X-ray reflectivity. Specular X-ray reflectivity data for orthoclase in contact with 0.01 m RbCl solution at pH 5.5 reveal a systematic increase in electron density adjacent to the mineral surface with respect to that observed in contact with de-ionized water (DIW). Quantitative analysis indicates that Rb+ adsorbs at a height of 0.83 +/- 0.03 angstrom with respect to the bulk K+ site with a nominal coverage of 0.72 +/- 0.10 ions per surface unit mesh (55.7 angstrom(2)). These results are consistent with an ion-exchange reaction in which Rb+ occupies an inner-sphere adsorption (IS) site. In contrast, X-ray reflectivity data for orthoclase in contact with 0.01 in Sr(NO3)(2) solution at pH 5.3 reveal few significant changes with respect to DIW. Resonant anomalous X-ray reflectivity was used to probe Sr2+ adsorption and to image its vertical distribution. This element-specific measurement reveals that Sr2+ adsorbs with a total coverage of 0.37 +/- 10.02 ions per surface unit mesh, at a substantially larger height (3.28 +/- 0.05 angstrom) than found for Rb+, and with a relatively broad density distribution (having a root-mean-square width of 1.88 +/- 0.08 angstrom for a single-peak model), implying that Sr2+ adsorbs primarily as a fully-hydrated outer-sphere (OS), species. Comparison to a two-height model suggests that 13 +/- 5% of the adsorbed Sr2+ may be present as an IS species. This partitioning implies a similar to 5 kJ/mol difference in free energy between the IS and OS Sr2+ on orthoclase. Differences in the partitioning of Sr2+ between IS and OS species for orthoclase (001) and muscovite (001) suggest control by the geometry of the IS adsorption site. Results for the OS distribution are compared to predictions of the Poisson-Boltzmann equation in the strong coupling regime, which predicts an intrinsically narrow vertical diffuse ion distribution; the OS distribution might thus be thought of as the diffuse ion profile in the limit of high surface charge. (C) 2007 Elsevier Ltd. All rights reserved. C1 [Fenter, P.; Park, C.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Sturchio, N. C.] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA. RP Fenter, P (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM fenter@anl.gov RI Park, Changyong/A-8544-2008 OI Park, Changyong/0000-0002-3363-5788 NR 63 TC 17 Z9 17 U1 1 U2 16 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD APR 1 PY 2008 VL 72 IS 7 BP 1848 EP 1863 DI 10.1016/j.uca.2007.12.016 PG 16 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 287IJ UT WOS:000254910500009 ER PT J AU Garg, SK Lippmann, MJ AF Garg, Sabodh K. Lippmann, Marcelo J. TI Untitled SO GEOTHERMICS LA English DT Editorial Material C1 [Lippmann, Marcelo J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Garg, Sabodh K.] Sci Applicat Int Corp, San Diego, CA 92121 USA. RP Lippmann, MJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM gargs@saic.com; mjlippmann@lbl.gov NR 1 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0375-6505 J9 GEOTHERMICS JI Geothermics PD APR PY 2008 VL 37 IS 2 BP 105 EP 106 DI 10.1016/j.geothermics.2008.02.002 PG 2 WC Energy & Fuels; Geosciences, Multidisciplinary SC Energy & Fuels; Geology GA 296YD UT WOS:000255580900001 ER PT J AU Koch, JA Izumi, N Welser, LA Mancini, RC Haan, SW Lee, RW Amendt, PA Barbee, TW Dalhed, S Fujita, K Golovkin, IE Klein, L Landen, OL Marshall, FJ Meyerhofer, DD Nishimura, H Ochi, Y Regan, S Sangster, TC Smalyuk, V Tommasini, R AF Koch, J. A. Izumi, N. Welser, L. A. Mancini, R. C. Haan, S. W. Lee, R. W. Amendt, P. A. Barbee, T. W., Jr. Dalhed, S. Fujita, K. Golovkin, I. E. Klein, L. Landen, O. L. Marshall, F. J. Meyerhofer, D. D. Nishimura, H. Ochi, Y. Regan, S. Sangster, T. C. Smalyuk, V. Tommasini, R. TI Core temperature and density profile measurements in inertial confinement fusion implosions SO HIGH ENERGY DENSITY PHYSICS LA English DT Article DE Implosion; Temperature; Density; Profile; Imaging; Spectroscopy AB We have measured time-integrated and time-gated electron temperature (T-e) and density (N-e) spatial profiles from indirect-drive implosions. In our experiments, we used a multiple-pinhole two-dimensional imaging spectrometer to obtain multispectral X-ray images of the imploded core. Quantitative comparisons between quasi-monochromatic images in different energy bands allowed T-e and N-e spatial profiles to be determined using two independent and validated techniques: a multi-objective search and reconstruction analysis, and an analytical analysis. We then compared the results to a simple one-dimensional (ID) mix-free hydrodynamics simulation in order to evaluate the ability of such a model to predict our experiments. Our data show spatial T-e profiles that are qualitatively consistent with the predictions of our 1D simulations, but we observe central cores that are 10-25% cooler and emit X-rays as late as 200 ps after peak compression. We infer time-gated spatial N-e profiles that are consistent with our ID simulations near the times of peak compression, but we find significant disagreement between time-integrated data and ID simulation predictions at large radii. Careful analysis of the time-gated and time-integrated T-e and N-e spatial profiles, together with streaked X-ray emission spectra from core and shell dopants, suggests mixing of shell material into the core is an important process that our ID hydrodynamics simulations fail to capture, and comparison between image data and a simple analytical model suggests that similar to 2-5 mu m of the initial inner shell thickness mixes into the core during the time period of significant X-ray emission. This mix width is consistent with the predictions of a growth-factor analysis that treats instability growth seeded by capsule surface roughness, and points to the need to consider time-dependent mixing effects when interpreting T-e and N-e spatial profiles derived from multispectral X-ray image data, particularly at large radii where mixing effects will be most significant. (C) 2007 Elsevier B.V. All rights reserved. C1 [Koch, J. A.; Izumi, N.; Haan, S. W.; Lee, R. W.; Amendt, P. A.; Barbee, T. W., Jr.; Dalhed, S.; Landen, O. L.; Tommasini, R.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Welser, L. A.; Mancini, R. C.] Univ Nevada, Dept Phys, Reno, NV 89557 USA. [Fujita, K.; Nishimura, H.; Ochi, Y.] Osaka Univ, Inst Laser Engn, Suita, Osaka 565, Japan. [Golovkin, I. E.] Prism Computat Sci, Madison, WI USA. [Klein, L.] Howard Univ, Dept Phys & Astron, Washington, DC 20059 USA. [Marshall, F. J.; Meyerhofer, D. D.; Regan, S.; Sangster, T. C.; Smalyuk, V.] Univ Rochester, Laser Energet Lab, Rochester, NY USA. RP Koch, JA (reprint author), Lawrence Livermore Natl Lab, POB 808,L-481, Livermore, CA 94551 USA. EM koch1@llnl.gov RI Nishimura, Hiroaki/I-4908-2015; IZUMI, Nobuhiko/J-8487-2016; Tommasini, Riccardo/A-8214-2009 OI IZUMI, Nobuhiko/0000-0003-1114-597X; Tommasini, Riccardo/0000-0002-1070-3565 FU U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory [W-7405-ENG-48]; University of Nevada, Reno (UNR), under DOE NLUF [DE-FG03-035F22696]; DOE HEDS [DE-FG03-98DP00213] FX This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-ENG-48, and by the University of Nevada, Reno (UNR), under DOE NLUF Grant No. DE-FG03-035F22696. Partial support was also provided by DOE HEDS Grant No. DE-FG03-98DP00213 to Howard University. We gratefully acknowledge C. Damian, V. Glebov, B. Hammel, M. Marinak, J. MacFarlane, V. Rekow, C. Sorce, J. Soures, R. Turner, R. Wallace and the Omega technical staff for discussions and support, and we acknowledge W. Cline and D. Meredith of UNR for building several MMI instruments. NR 40 TC 11 Z9 14 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 EI 1878-0563 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD APR PY 2008 VL 4 IS 1-2 BP 1 EP 17 DI 10.1016/j.hedp.2007.09.001 PG 17 WC Physics, Fluids & Plasmas SC Physics GA V15DE UT WOS:000207781900001 ER PT J AU Phillips, GJ Wark, JS Kerr, FM Rose, SJ Lee, RW AF Phillips, G. J. Wark, J. S. Kerr, F. M. Rose, S. J. Lee, R. W. TI Escape factors in zero-dimensional radiation-transfer codes SO HIGH ENERGY DENSITY PHYSICS LA English DT Article DE Escape factors; Plasmas; Radiation transfer; Optical depth AB Several zero-dimensional non-LTE radiation-transfer codes are in common use within the laser-plasma community (for example, RATION, FLY, FLYCHK and GALAXY). These codes are capable of generating calculated emission spectra for a plasma of given density and temperature in the presence of a radiation field. Although dimensionless in nature, these codes can take into account the coupling of radiation and populations by use of the escape factor method, and in this sense the codes incorporate the finite size of the plasma of interest in two ways firstly in the calculation of the effect of the radiation on the populations and secondly when using these populations to generate a spectrum. Different lengths can be used within these two distinct operations, though it has not been made clear what these lengths should be. We submit that the appropriate length to use for the calculation of populations in such zero-dimensional codes is the mean chord of the system, whilst when calculating the spectrum the appropriate length is the size of the plasma along the line of sight. Indeed, for specific plasma shapes using the appropriate escape factors it can be shown that this interpretation agrees with analytic results. However, this is only the case if the correct escape factor is employed: use of the Holstein escape factor (which is in widely distributed versions of the codes mentioned above) is found to be significantly in error under most conditions. We also note that for the case where a plasma is close to coronal equilibrium, some limited information concerning the shape of the plasma can be extracted merely from the ratio of optically thick to optically thin lines, without the need for any explicit spatial resolution. (C) 2007 Elsevier B.V. All rights reserved. C1 [Phillips, G. J.; Wark, J. S.; Kerr, F. M.] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England. [Rose, S. J.] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2BW, England. [Lee, R. W.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Wark, JS (reprint author), Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England. EM j.wark1@physics.ox.ac.uk OI Rose, Steven/0000-0001-6808-6355 NR 15 TC 9 Z9 9 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD APR PY 2008 VL 4 IS 1-2 BP 18 EP 25 DI 10.1016/j.hedp.2007.10.001 PG 8 WC Physics, Fluids & Plasmas SC Physics GA V15DE UT WOS:000207781900002 ER PT J AU Kar, S Borghesi, M Audebert, P Benuzzi-Mounaix, A Boehly, T Hicks, D Koenig, M Lancaster, K Lepape, S Mackinnon, A Norreys, P Patel, R Romagnani, L AF Kar, S. Borghesi, M. Audebert, P. Benuzzi-Mounaix, A. Boehly, T. Hicks, D. Koenig, M. Lancaster, K. Lepape, S. Mackinnon, A. Norreys, P. Patel, R. Romagnani, L. TI Modeling of laser-driven proton radiography of dense matter SO HIGH ENERGY DENSITY PHYSICS LA English DT Article DE Proton; Laser; Radiography; Monte-Carlo; Inertial confinement fusion; Shock wave; Warm dense matter AB Laser-driven MeV proton beams are highly suitable for quantitative diagnosis of density profiles in dense matter by employing them as a particle probe in a point-projection imaging scheme. Via differential scattering and stopping, the technique allows to detect density modulations in dense compressed matter with intrinsic high spatial and temporal resolutions. The technique offers a viable alternative/complementary route to more established radiographic methods. A Monte-Carlo simulation package, MPRM, has been developed in order to quantify the density profile of the probed object from the experimentally obtained proton radiographs. A discussion of recent progress in this area is presented on the basis of analysis of experimental data, which has been supported by MPRM simulation. (C) 2008 Elsevier B.V. All rights reserved. C1 [Kar, S.; Borghesi, M.; Romagnani, L.] Queens Univ Belfast, Dept Phys & Astron, Belfast BT7 1NN, Antrim, North Ireland. [Hicks, D.; Lepape, S.; Mackinnon, A.; Patel, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Audebert, P.; Benuzzi-Mounaix, A.; Koenig, M.] Ecole Polytech, Lab Utilisat Lasers Intenses, F-91128 Palaiseau, France. [Boehly, T.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA. [Lancaster, K.; Norreys, P.] Rutherford Appleton Lab, Oxen OX11 0QX, Oxon, England. RP Kar, S (reprint author), Queens Univ Belfast, Dept Phys & Astron, Belfast BT7 1NN, Antrim, North Ireland. EM s.kar@qub.ac.uk RI Kar, Satyabrata/E-5220-2010; Koenig, Michel/A-2167-2012; Borghesi, Marco/K-2974-2012; Hicks, Damien/B-5042-2015; MacKinnon, Andrew/P-7239-2014 OI Hicks, Damien/0000-0001-8322-9983; MacKinnon, Andrew/0000-0002-4380-2906 FU Queen's University of Belfast FX Authors would like to acknowledge co-authors of the articles in Refs. [19,35,39] for their support and contribution to the experiments discussed in this paper. S.K. would like to acknowledge IRCEP fellowship from Queen's University of Belfast during his Ph.D. tenure. S.K. would also like to thank Dr. M. Zepf, QUB for useful discussions and supports. NR 36 TC 21 Z9 22 U1 2 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD APR PY 2008 VL 4 IS 1-2 BP 26 EP 40 DI 10.1016/j.hedp.2007.11.002 PG 15 WC Physics, Fluids & Plasmas SC Physics GA V15DE UT WOS:000207781900003 ER PT J AU Murillo, MS AF Murillo, Michael S. TI Viscosity estimates of liquid metals and warm dense matter using the Yukawa reference system SO HIGH ENERGY DENSITY PHYSICS LA English DT Article DE Viscosity; Dense plasma; Warm dense matter; Yukawa; Yukawa system; Yukawa model; Reynolds number; Ion-acoustic wave; ICF; Earth's core; Wave damping; Ionization level AB A practical method of computing the viscosity of liquid metals and warm dense matter over wide ranges in parameters is proposed. The method is based on mapping the system of interest onto the Yukawa model, for which the viscosity is well known and can be written in a quasiuniversal form. Comparisons are made with quantum molecular dynamics results for compressed iron relevant to the Earth's core, experimental data for many liquid metals, and simulation results for dense deuterium relevant to inertial confinement fusion experiments. Finally, the dispersion and damping of ion-acoustic waves in warm dense matter are considered in this context. (C) 2007 Elsevier B.V. All rights reserved. C1 Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA. RP Murillo, MS (reprint author), Los Alamos Natl Lab, Div Phys, MS D410, Los Alamos, NM 87545 USA. EM murillo@lanl.gov NR 34 TC 23 Z9 23 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 EI 1878-0563 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD APR PY 2008 VL 4 IS 1-2 BP 49 EP 57 DI 10.1016/j.hedp.2007.11.001 PG 9 WC Physics, Fluids & Plasmas SC Physics GA V15DE UT WOS:000207781900005 ER PT J AU Daligault, J Mozyrsky, D AF Daligault, Jerome Mozyrsky, Dmitry TI Effect of the liquid-like ionic structure on the electron-ion energy relaxation timescales in dense plasmas SO HIGH ENERGY DENSITY PHYSICS LA English DT Article DE Temperature relaxation; Dense plasma; Warm dense matter; Response functions AB In a recent publication [J. Daligault, D. Mozyrsky, Phys. Rev. E 75 (2007) 026402], we derived a general expression for the electron ion energy relaxation rate in plasmas which, as a result of the small electron ion mass ratio, expresses the relaxation rate in terms of the low-frequency electronic density fluctuations. Here we propose a practical model for the electronic density fluctuations in dense plasmas and apply this model to the calculation of the electron ion energy relaxation rate. We find that the rate is only scarcely affected by the underlying liquid-like ionic disorder typical of dense matter. Relaxation rates obtained are systematically slightly larger than those predicted by the Fermi Golden Rule formula, in contradiction with the coupled-modes' theory that predicts values an order of magnitude lower. We also find that the discontinuity of the rate at melting is tiny, in contrast with the sharp increase of the electrical conductivity. (C) 2008 Elsevier B.V. All rights reserved. C1 [Daligault, Jerome; Mozyrsky, Dmitry] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Daligault, J (reprint author), Los Alamos Natl Lab, Div Theoret, MS-K717, Los Alamos, NM 87545 USA. EM daligaul@lanl.gov OI Mozyrsky, Dima/0000-0001-5305-4617 FU National Nuclear Security Administration of the U.S. Department of Energy by Los Alamos National Laboratory [DE-AC52-06NA25396] FX This work was performed under the auspices of the National Nuclear Security Administration of the U.S. Department of Energy by Los Alamos National Laboratory, operated by Los Alamos National Security LLC under contract DE-AC52-06NA25396. NR 28 TC 9 Z9 9 U1 3 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD APR PY 2008 VL 4 IS 1-2 BP 58 EP 63 DI 10.1016/j.hedp.2008.01.001 PG 6 WC Physics, Fluids & Plasmas SC Physics GA V15DE UT WOS:000207781900006 ER PT J AU Rozsnyai, BF AF Rozsnyai, Balazs F. TI Electron scattering in hot/warm plasmas SO HIGH ENERGY DENSITY PHYSICS LA English DT Article DE Electrical and thermal conductivities; Electron scattering AB Electrical and thermal conductivities are presented for aluminum, iron and copper plasmas at various temperatures, and for gold between 15,000 and 30,000 K. The calculations are based on the continuum wave functions computed in the potential of the temperature and density dependent self-consistent 'average atom' (AA) model of the plasma. The cross-sections are calculated by using the phase shifts of the continuum electron wave functions and also in the Born approximation. We show the combined effect of the thermal and radiative transport on the effective Rosseland mean opacities at temperatures from 1 to 1000 eV. Comparisons with low temperature experimental data are also presented. Published by Elsevier B.V. C1 Lawrence Livermore Natl Lab, AX Div, Livermore, CA 94550 USA. RP Rozsnyai, BF (reprint author), Lawrence Livermore Natl Lab, AX Div, L-23,POB 808, Livermore, CA 94550 USA. EM rozsnyail@llnl.gov FU U.S. Department of Energy [DE-AC52-07NA27344]; Lawrence Livermore National Laboratory FX This work was supported by the U.S. Department of Energy under Contract DE-AC52-07NA27344 with the Lawrence Livermore National Laboratory. NR 18 TC 10 Z9 10 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1574-1818 J9 HIGH ENERG DENS PHYS JI High Energy Density Phys. PD APR PY 2008 VL 4 IS 1-2 BP 64 EP 72 DI 10.1016/j.hedp.2008.01.002 PG 9 WC Physics, Fluids & Plasmas SC Physics GA V15DE UT WOS:000207781900007 ER PT J AU Feyen, L Kalas, M Vrugt, JA AF Feyen, Luc Kalas, Milan Vrugt, Jasper A. TI Semi-distributed parameter optimization and uncertainty assessment for large-scale streamflow simulation using global optimization SO HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES LA English DT Article DE distributed modelling; parameter identification; streamflow simulation; uncertainty ID RAINFALL-RUNOFF MODELS; SHUFFLED COMPLEX EVOLUTION; METROPOLIS ALGORITHM; HYDROLOGIC MODEL; CATCHMENT MODELS; LISFLOOD MODEL; RIVER-BASIN; CALIBRATION; PREDICTION; INFERENCE AB In catchments characterized by spatially varying hydrological processes and responses, the optimal parameter values or regions of attraction in parameter space may differ with location-specific characteristics and dominating processes. This paper evaluates the value of semi-distributed calibration parameters for large-scale streamflow simulation using the spatially distributed LISFLOOD model. We employ the Shuffled Complex Evolution Metropolis (SCEM-UA) global optimization algorithm to infer the calibration parameters using daily discharge observations. The resulting posterior parameter distribution reflects the uncertainty about the model parameters and forms the basis for making probabilistic flow predictions. We assess the value of semi-distributing the calibration parameters by comparing three different calibration strategies. In the first calibration strategy uniform values over the entire area of interest are adopted for the unknown parameters, which are calibrated against discharge observations at the downstream outlet of the catchment. In the second calibration strategy the parameters are also uniformly distributed, but they are calibrated against observed discharges at the catchment outlet and at internal stations. In the third strategy a semi-distributed approach is adopted. Starting from upstream, parameters in each subcatchment are calibrated against the observed discharges at the outlet of the subcatchment. In order not to propagate upstream errors in the calibration process, observed discharges at upstream catchment Outlets are used as inflow when calibrating downstream subcatchments. As an illustrative example, we demonstrate the methodology for a part of the Morava catchment, covering an area of approximately 10 000 km(2). The calibration results reveal that the additional value of the internal discharge stations is limited when applying a lumped parameter approach. Moving from a lumped to a semi-distributed parameter approach: (i) improves the accuracy of the flow predictions, especially in the upstream subcatchments; and (ii) results in a more correct representation of flow prediction uncertainty. The results show the clear need to distribute the calibration parameters, especially in large catchments characterized by spatially varying hydrological processes and responses. C1 [Feyen, Luc; Kalas, Milan] Commiss European Communities, DG Joint Res Ctr, Inst Environm & Sustainabil, Rome, Italy. [Kalas, Milan] Slovak Tech Univ Bratislava, Fac Civil Engn, Dept Land & Water Resources Management, Bratislava, Slovakia. [Vrugt, Jasper A.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. RP Feyen, L (reprint author), Commiss European Communities, DG Joint Res Ctr, Inst Environm & Sustainabil, Rome, Italy. EM luc.feyen@jrc.it RI Vrugt, Jasper/C-3660-2008 NR 31 TC 32 Z9 33 U1 1 U2 7 PU IAHS PRESS, INST HYDROLOGY PI WALLINGFORD PA C/O FRANCES WATKINS, WALLINGFORD OX10 8BB, ENGLAND SN 0262-6667 J9 HYDROLOG SCI J JI Hydrol. Sci. J.-J. Sci. Hydrol. PD APR PY 2008 VL 53 IS 2 BP 293 EP 308 DI 10.1623/hysj.53.2.293 PG 16 WC Water Resources SC Water Resources GA 289ON UT WOS:000255063900001 ER PT J AU Dongarra, J Golub, GH Grosse, E Moler, C Moore, K AF Dongarra, Jack Golub, Gene H. Grosse, Eric Moler, Cleve Moore, Keith TI Netlib and NA-Net: Building a scientific computing community SO IEEE ANNALS OF THE HISTORY OF COMPUTING LA English DT Article AB Two resources evolved in the early 1980s to serve the needs of the scientific computing community. These resources were Netlib, a software repository that facilitated distribution of public-domain software, and NA-Net, a file of analysts' contact information that eventually supported an online directory and, newsletter digest. The authors who created Netlib and NA-Net explain the history of these resources and their continuing impact. C1 [Dongarra, Jack; Moore, Keith] Univ Tennessee, Dept Comp Sci, Knoxville, TN 37996 USA. [Dongarra, Jack] Oak Ridge Natl Lab, Div Math, Oak Ridge, TN 37831 USA. [Dongarra, Jack] Univ Manchester, Manchester M13 9PL, Lancs, England. [Grosse, Eric] Google, Mountain View, CA 94043 USA. RP Dongarra, J (reprint author), Univ Tennessee, Dept Comp Sci, Knoxville, TN 37996 USA. EM dongarra@cs.utk.edu NR 13 TC 2 Z9 5 U1 0 U2 3 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 1058-6180 J9 IEEE ANN HIST COMPUT JI IEEE Ann. Hist. Comput. PD APR-JUN PY 2008 VL 30 IS 2 BP 30 EP 41 DI 10.1109/MAHC.2008.29 PG 12 WC Computer Science, Theory & Methods; History & Philosophy Of Science SC Computer Science; History & Philosophy of Science GA 305CQ UT WOS:000256155800002 ER PT J AU Griffin, C AF Griffin, Christopher TI A note on the properties of the supremal controllable sublanguage in pushdown systems SO IEEE TRANSACTIONS ON AUTOMATIC CONTROL LA English DT Article DE deterministic pushdown automation; supremal controllable sublanguage; supervisory control ID LANGUAGE AB Consider an event alphabet Sigma. The supervisory control theory of Ramadge and Wonham asks the question: given a plant model G with language L(M) (G) subset of Sigma* and another language K subset of L(M) (G), is there a supervisor phi such that L(M) (phi/G) = K? Ramadge and Wonham showed that a necessary condition for this to be true is the so-called controllability of K with respect to L(M) (G). They showed that when G is a finite-state automaton and K is a regular language (also generated by a finite state automaton), then there is a regular supremal controllable sub-language sup(c) (K) subset of K that is effectively constructable from generators of K and G. In this paper, we show: 1) there is an algorithm to compute the supremal controllable sublanguage of a prefix closed K accepted by a deterministic pushdown automaton (DPDA) when the plant language is also prefix closed and accepted by a finite state automaton and 2) in this case, we show that this supremal controllable sublanguage is also accepted by a DPDA. C1 Oak Ridge Natl Lab, Comp Sci & engn Div, Oak Ridge, TN 37831 USA. RP Griffin, C (reprint author), Oak Ridge Natl Lab, Comp Sci & engn Div, Oak Ridge, TN 37831 USA. EM cgriffin229@yahoo.com NR 9 TC 4 Z9 4 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0018-9286 J9 IEEE T AUTOMAT CONTR JI IEEE Trans. Autom. Control PD APR PY 2008 VL 53 IS 3 BP 826 EP 829 DI 10.1109/TAC.2008.919519 PG 4 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA 288VJ UT WOS:000255013600021 ER PT J AU Gunaratne, C Christensen, K Nordman, B Suen, S AF Gunaratne, Charnara Christensen, Ken Nordman, Bruce Suen, Stephen TI Reducing the energy consumption of Ethernet with Adaptive Link Rate (ALR) SO IEEE TRANSACTIONS ON COMPUTERS LA English DT Article DE power management; energy-aware systems; local area networks; Ethernet; Energy Efficient Ethernet ID DYNAMIC POWER MANAGEMENT AB The rapidly increasing energy consumption by computing and communications equipment is a significant economic and environmental problem that needs to be addressed. Ethernet network interface controllers (NICs) in the US alone consume hundreds of millions of US dollars in electricity per year. Most Ethernet links are underutilized and link energy consumption can be reduced by operating at a lower data rate. In this paper, we investigate Adaptive Link Rate (ALR) as a means of reducing the energy consumption of a typical Ethernet link by adaptively varying the link data rate in response to utilization. Policies to determine when to change the link data rate are studied. Simple policies that use output buffer queue length thresholds and fine-grain utilization monitoring are shown to be effective. A Markov model of a state-dependent service rate queue with rate transitions only at service completion is used to evaluate the performance of ALR with respect to the mean packet delay, the time spent in an energy-saving low link data rate, and the oscillation of link data rates. Simulation experiments using actual and synthetic traffic traces show that an Ethernet link with ALR can operate at a lower data rate for over 80 percent of the time, yielding significant energy savings with only a very small increase in packet delay. C1 [Gunaratne, Charnara; Christensen, Ken] Univ S Florida, Dept Comp Sci & Engn, Tampa, FL 33620 USA. [Nordman, Bruce] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. [Suen, Stephen] Univ S Florida, Dept Math & Stat, Tampa, FL 33620 USA. RP Gunaratne, C (reprint author), Univ S Florida, Dept Comp Sci & Engn, Tampa, FL 33620 USA. EM pgunarat@cse.usf.edu; christen@cse.usf-edu; bnordman@lbl.gov; suen@math.usf.edu NR 31 TC 178 Z9 196 U1 1 U2 8 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0018-9340 J9 IEEE T COMPUT JI IEEE Trans. Comput. PD APR PY 2008 VL 57 IS 4 BP 448 EP 461 DI 10.1109/TC.2007.70836 PG 14 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA 275AR UT WOS:000254044800002 ER PT J AU Fuerschbach, PW AF Fuerschbach, Phillip W. TI Control of photonic package alignment with asynchronous laser spot welds SO IEEE TRANSACTIONS ON ELECTRONICS PACKAGING MANUFACTURING LA English DT Article DE active alignment; electronic packaging; fiber optic; laser welding; post weld shift; spot weld; weld distortion; weld shrinkage ID DISTORTION AB The precise alignment of an optical fiber to a laser diode for maximum optical coupling is often accomplished with synchronous laser spot welds in three symmetric locations. To improve precision and reduce operational complexity, the utility of single-beam spot welds made in an asynchronous manner has been investigated. Independent measurements of fiber tip post weld shift have been made using eddy current sensors and CCD camera imaging analysis. For the cylindrical radially aligned Kovar ferrules examined, post weld shift has been found to be independent of both the location and number of prior spot welds. Post weld shift direction has been shown to be relatively consistent and predictable when the fiber containing ferrule is properly restrained. It has been demonstrated that through the application of an axial restraining force on radially aligned ferrules, post weld shift can be reduced to less than 2 mu m. Analytical equations have been presented that predict the magnitude of the measured post weld shift and also serve to guide engineers in optimal design geometries and preferred welding conditions. C1 Sandia Natl Labs, Nucl Weapons Complex Planning & Integrat Dept, Albuquerque, NM 87185 USA. RP Fuerschbach, PW (reprint author), Sandia Natl Labs, Nucl Weapons Complex Planning & Integrat Dept, POB 5800, Albuquerque, NM 87185 USA. EM pwfuers@sandia.gov NR 10 TC 2 Z9 2 U1 1 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 1521-334X J9 IEEE T ELECTRON PACK JI IEEE Trans. Electron. Packag. Manuf. PD APR PY 2008 VL 31 IS 2 BP 114 EP 119 DI 10.1109/TEPM.2008.919328 PG 6 WC Engineering, Manufacturing SC Engineering GA 339RQ UT WOS:000258595400003 ER PT J AU Du, Z Tolbert, LM Chiasson, JN Ozpineci, B AF Du, Zhong Tolbert, Leon M. Chiasson, John N. Ozpineci, Burak TI Reduced switching-frequency active harmonic elimination for multilevel converters SO IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS LA English DT Article DE field-programmable gate-array (FPGA) controller; multilevel converter; reduced switching-frequency active harmonic elimination ID PWM TECHNIQUE; GENERALIZED TECHNIQUES; THYRISTOR INVERTERS; VOLTAGE CONTROL; TOPOLOGIES; STRATEGY; FILTERS; SCHEME; VSI AB This paper presents a reduced switching-frequency active-harmonic-elimination method (RAHEM) to eliminate any number of specific order harmonics of multilevel converters. First, resultant theory is applied to transcendental equations to eliminate low-order harmonics and to determine switching angles for a fundamental frequency-switching scheme. Next, based on the number of harmonics to be eliminated, Newton climbing method is applied to transcendental equations to eliminate high-order harmonics and to determine switching angles for the fundamental frequency-switching scheme. Third, the magnitudes and phases of the residual lower order harmonics are computed, generated, and subtracted from the original voltage waveform to eliminate these low-order harmonics. Compared to the active-harmonic-elimination method (AHEM), which generates square waves to cancel high-order harmonics, RAHEM has lower switching frequency. The simulation results show that the method can effectively eliminate all the specific harmonics, and a low total harmonic distortion (THD) near sine wave is produced. An experimental 11-level H-bridge multilevel converter with a field-programmable gate-array controller is employed to experimentally validate the method. The experimental results show that RAHEM does effectively eliminate any number of specific harmonics, and the output voltage waveform has low switching frequency and low THD. C1 [Du, Zhong; Tolbert, Leon M.] Oak Ridge Natl Lab, Knoxville, TN 37932 USA. [Tolbert, Leon M.] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA. [Chiasson, John N.] Boise State Univ, Dept Elect & Comp Engn, Boise, ID 83725 USA. [Ozpineci, Burak] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Du, Z (reprint author), Parker Hannifin Corp, Olive Branch, MS 38654 USA. EM zhong.du@parker.com; tolbert@utk.edu; JohnChiasson@boisestate.edu; ozpinecib@ornl.gov OI Tolbert, Leon/0000-0002-7285-609X NR 36 TC 51 Z9 57 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0278-0046 EI 1557-9948 J9 IEEE T IND ELECTRON JI IEEE Trans. Ind. Electron. PD APR PY 2008 VL 55 IS 4 BP 1761 EP 1770 DI 10.1109/TIE.2008.917068 PG 10 WC Automation & Control Systems; Engineering, Electrical & Electronic; Instruments & Instrumentation SC Automation & Control Systems; Engineering; Instruments & Instrumentation GA 286JM UT WOS:000254842200029 ER PT J AU Chertkov, M Stepanov, MG AF Chertkov, Michael Stepanov, Mikhail G. TI An efficient pseudocodeword search algorithm for linear programming decoding of LDPC codes SO IEEE TRANSACTIONS ON INFORMATION THEORY LA English DT Article DE error-floor; linear programming decoding; lowdensity; parity-check (LDPC) codes ID GRAPHS AB In linear programming (LP) decoding of a low-density parity-check (LDPC) code one minimizes a linear functional, with coefficients related to log-likelihood ratios, over a relaxation of the polytope spanned by the codewords. In order to quantify LP decoding it is important to study vertexes of the relaxed polytope, so-called pseudocodewords. We propose a technique to heuristically create a list of pseudocodewords close to the zero codeword and their distances. Our pseudocodeword-search algorithm starts by randomly choosing configuration of the noise. The configuration is modified through a discrete number of steps. Each'step consists of two substeps: one applies an LP decoder to the noise-configuration deriving a psendocodeword, and then finds configuration of the noise equidistant from the pseudocodeword and the zero codeword. The resulting noise configuration is used as an entry for the next step. The iterations converge rapidly to a pseudocodeword neighboring the zero codeword. Repeated many times, this procedure is characterized by the distribution function of the pseudocodeword effective distance. The efficiency of the procedure is demonstrated on examples of the Tanner code and Margulis codes operating over an additive white Gaussian noise (AWGN) channel. C1 [Chertkov, Michael; Stepanov, Mikhail G.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Chertkov, Michael; Stepanov, Mikhail G.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Stepanov, Mikhail G.] Univ Arizona, Dept Math, Tucson, AZ 85721 USA. RP Chertkov, M (reprint author), Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA. EM chertkov@lanl.gov; stepanov@math.arizona.edu RI Chertkov, Michael/O-8828-2015; OI Chertkov, Michael/0000-0002-6758-515X NR 26 TC 25 Z9 25 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9448 EI 1557-9654 J9 IEEE T INFORM THEORY JI IEEE Trans. Inf. Theory PD APR PY 2008 VL 54 IS 4 BP 1514 EP 1520 DI 10.1109/TIT.2008.917682 PG 7 WC Computer Science, Information Systems; Engineering, Electrical & Electronic SC Computer Science; Engineering GA 281CW UT WOS:000254475300009 ER PT J AU Hasan, SMS Kang, YW Howlader, MK AF Hasan, S. M. Shajedul Kang, Yoon W. Howlader, Mostofa K. TI Development of an RF conditioning system for charged-particle accelerators SO IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT LA English DT Article DE accelerator control systems; accelerator radio-frequency (RF) systems; couplers; programmable control; super-conducting accelerator cavities AB Charged-particle accelerators use various vacuum windows on their accelerating radio-frequency (RF) cavities to throughput very high RF power. Before being placed on the cavities, the windows should be cleaned, baked, and fully RF conditioned to prevent a poor vacuum from outgassing, as well as other forms of contamination. An example is the coaxial fundamental power coupler (FPC) with an annular alumina ceramic window for each of the 81 superconducting RF cavities in the Spallation Neutron Source (SNS) linear accelerator. The FPCs needed to be tested up to 650-kW peak in a traveling wave and 2.6 MW with standing wave peaks in 1.3 mu s and 60 pulses/s at 805 MHz. In this paper, an Experimental-Physics-and-Industrial-Control-System-based RF conditioning system for the SNS RF test facility is presented. This paper summarizes the hardware and software design strategies, provides the results obtained, and describes the future research scope. C1 [Hasan, S. M. Shajedul; Howlader, Mostofa K.] Univ Tennessee, Dept Elect & Comp Engn, Knoxville, TN 37996 USA. [Kang, Yoon W.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Hasan, SMS (reprint author), Univ Tennessee, Dept Elect & Comp Engn, Knoxville, TN 37996 USA. EM hasan@vt.eclu; kangyw@ornl.gov; howladermk@ornl.gov NR 8 TC 0 Z9 0 U1 2 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0018-9456 J9 IEEE T INSTRUM MEAS JI IEEE Trans. Instrum. Meas. PD APR PY 2008 VL 57 IS 4 BP 743 EP 750 DI 10.1109/TIM.2007.911638 PG 8 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA 274VE UT WOS:000254029600011 ER PT J AU Basaglia, T Bell, ZW Dressendorfer, PV Larkin, A Pia, MG AF Basaglia, T. Bell, Z. W. Dressendorfer, P. V. Larkin, A. Pia, M. G. TI Writing software or writing scientific articles? SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT IEEE Nuclear Science Symposium/Medical Imaging Conference CY OCT 26-NOV 03, 2007 CL Honolulu, HI SP IEEE ID DETECTOR; LEP AB An analysis of publications related to high energy physics computing in refereed journals is presented. The distribution of papers associated to various fields of computing relevant to high energy physics is critically analyzed. The relative publication rate of software papers is evaluated in comparison to other closely related physics disciplines, such as nuclear physics, radiation protection and medical physics, and to hardware publications. The results hint to the fact that, in spite of the significant effort invested in high energy physics computing and its fundamental role in the experiments, this research area is underrepresented in scientific literature; nevertheless the analysis of citations highlights the significant impact of software publications in experimental research. C1 [Basaglia, T.] CERN, CH-1211 Geneva 23, Switzerland. [Bell, Z. W.] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. [Larkin, A.] IEEE, Piscataway, NJ 08854 USA. [Pia, M. G.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. RP Basaglia, T (reprint author), CERN, CH-1211 Geneva 23, Switzerland. EM p.dressendorfe@ieee.org; MariaGrazia.Pia@ge.infn.it RI Pia, Maria Grazia/C-7034-2012; OI Pia, Maria Grazia/0000-0002-3579-9639; Bell, Zane/0000-0003-1115-8674 NR 42 TC 6 Z9 6 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 0018-9499 EI 1558-1578 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD APR PY 2008 VL 55 IS 2 BP 671 EP 678 DI 10.1109/TNS.2008.919563 PG 8 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 287AK UT WOS:000254888500002 ER PT J AU Myjak, MJ Seifert, CE AF Myjak, Mitchell J. Seifert, Carolyn E. TI Real-time Compton imaging for the GammaTracker handheld CdZnTe detector SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE cadmium zinc telluride; Compton camera; field programmable gate arrays; image reconstruction; nuclear imaging ID RESOLUTION; TELESCOPE; RECONSTRUCTION; PERFORMANCE; ALGORITHM AB We are currently developing a handheld radioisotope identifier containing 18 position-sensitive CdZnTe crystals. In addition to isotope identification, the device performs basic Compton imaging to determine the location of suspected sources. This paper presents two computationally efficient algorithms for this purpose. The first algorithm traces individual Compton cones onto the unit sphere, whereas the second algorithm computes the intersection of two Compton cones and the unit sphere. Simulations demonstrate that the algorithms are suitable for determining the directionality, even with features such as uncertainty calculations omitted. The one-cone algorithm works more efficiently at high count rates, but the two-cone algorithm generates fewer image artifacts. C1 [Myjak, Mitchell J.; Seifert, Carolyn E.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Myjak, MJ (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM mitchell.myjak@pnl.gov; carolyn.seifert@pnl.gov NR 16 TC 15 Z9 15 U1 0 U2 5 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD APR PY 2008 VL 55 IS 2 BP 769 EP 777 DI 10.1109/TNS.2007.915008 PG 9 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 287AK UT WOS:000254888500017 ER PT J AU Tindall, CS Palaio, NP Ludewigt, BA Holland, SE Larson, DE Curtis, DW McBride, SE Moreau, T Lin, RP Angelopoulos, V AF Tindall, C. S. Palaio, N. P. Ludewigt, B. A. Holland, S. E. Larson, D. E. Curtis, D. W. McBride, S. E. Moreau, T. Lin, R. P. Angelopoulos, V. TI Silicon detectors for low energy particle detection SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article DE electron detectors; proton detectors; silicon radiation detectors; solar radiation ID QUANTUM EFFICIENCY; PHOTODIODES; ALUMINUM; FABRICATION; FILMS AB Silicon detectors with very thin entrance contacts have been fabricated for use in the IMPACT SupraThermal Electron (STE) instrument on the STEREO mission and for the Solid State Telescopes on the THEMIS mission. The silicon diode detectors were fabricated using a 200 angstrom thick phosphorous doped polysilicon layer that formed the thin entrance window. A 200 angstrom thick aluminum layer was deposited on top of the polysilicon in order to reduce their response to stray light. Energy loss in the entrance contact was about 350 eV for electrons and about 2.3 keV for protons. The highest detector yield was obtained using a process in which the thick polysilicon gettering layer was removed by chemical etching rather than chemical mechanical polishing. C1 [Tindall, C. S.; Palaio, N. P.; Ludewigt, B. A.; Holland, S. E.; Lin, R. P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Larson, D. E.; Curtis, D. W.; McBride, S. E.; Moreau, T.; Angelopoulos, V.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. [Lin, R. P.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. RP Tindall, CS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM CSTindall@lbl.gov; davin@ssl.berkeley.edu; rlin@ssl.berkeley.edu RI Holland, Stephen/H-7890-2013 NR 24 TC 13 Z9 13 U1 0 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD APR PY 2008 VL 55 IS 2 BP 797 EP 801 DI 10.1109/TNS.2008.918527 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA 287AK UT WOS:000254888500021 ER PT J AU Arnold, PA Hulsey, SD Ullery, GT Petersen, DE Pendleton, L Ollis, CW Newton, MA Harwell, TB Hadovski, LM AF Arnold, P. A. Hulsey, S. D. Ullery, G. T. Petersen, D. E. Pendleton, L. Ollis, C. W. Newton, M. A. Harwell, T. B. Hadovski, L. M. TI An update on the status of the NIF power-conditioning system SO IEEE TRANSACTIONS ON PLASMA SCIENCE LA English DT Article; Proceedings Paper CT 34th IEEE International Conference on Plasma Science /16th IEEE International Pulsed Power Conference/34th IEEE International Conference on Plasma Science (ICOPS) CY JUN 17-22, 2007 CL Albuquerque, NM DE inertial confinement fusion; National Ignition Facility (NIF); power conditioning AB The National Ignition Facility (NIF) power-conditioning system provides the pulsed excitation required to drive flashlamps in the laser's optical amplifiers. Modular in design, each of the 192 main energy-storage modules (MESMs) stores up to 2.2 MJ of electrical energy in its capacitor bank before delivering the energy to 20 pairs of flashlamps in a 400-mu s pulse (10% power points). The peak current of each MESM discharge is 0.5 MA. The production, installation, commissioning, and operation of the NIF power conditioning continue to progress rapidly, with the goals of completing accelerated production and commissioning by early 2008, while maintaining an aggressive operation schedule. To date, more than 97% of the required modules have been assembled, shipped, and installed in the facility, representing more than 380 MJ of stored energy available for driving the NIF flashlamps. The MESMs have displayed outstanding reliability during daily multiple-shift operations. C1 [Arnold, P. A.; Hulsey, S. D.; Ullery, G. T.; Petersen, D. E.; Pendleton, L.; Ollis, C. W.; Newton, M. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Harwell, T. B.; Hadovski, L. M.] Raytheon Tech Serv, Chula Vista, CA 91911 USA. RP Arnold, PA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM arnold3@llnl.gov; ulleryl@llnl.gov; petersen3@llnl.gov; Pendleton1@llnl.gov; newton6@llnl.gov; tom_b_harwell@raytheon.com; Lee_m_hadovski@raytheon.com NR 3 TC 14 Z9 23 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0093-3813 J9 IEEE T PLASMA SCI JI IEEE Trans. Plasma Sci. PD APR PY 2008 VL 36 IS 2 BP 383 EP 388 DI 10.1109/TPS.2008.918663 PN 1 PG 6 WC Physics, Fluids & Plasmas SC Physics GA 288JE UT WOS:000254981700008 ER PT J AU Weber, BV Allen, RJ Commisso, RJ Cooperstein, G Hinshelwood, DD Mosher, D Murphy, DP Ottinger, PR Phipps, DG Schumer, JW Stephanakis, SJ Swanekamp, SB Pope, SC Threadgold, JR Biddle, LA Clough, SG Jones, A Sinclair, MA Swatton, D Carden, T Oliver, BV AF Weber, Bruce V. Allen, Raymond J. Commisso, Robert J. Cooperstein, Gerald Hinshelwood, David D. Mosher, David Murphy, Donald P. Ottinger, Paul R. Phipps, David G. Schumer, Joseph W. Stephanakis, Stavros J. Swanekamp, Stephen B. Pope, Stuart C. Threadgold, Jim R. Biddle, Lester A. Clough, Stephen G. Jones, Aled Sinclair, Mark A. Swatton, Damon Carden, Thomas Oliver, Bryan V. TI Radiographic properties of plasma-filled rod-pinch diodes SO IEEE TRANSACTIONS ON PLASMA SCIENCE LA English DT Article; Proceedings Paper CT 34th IEEE International Conference on Plasma Science /16th IEEE International Pulsed Power Conference/34th IEEE International Conference on Plasma Science (ICOPS) CY JUN 17-22, 2007 CL Albuquerque, NM DE plasma-filled diode; pulsed power; radiography; rod-pinch diode ID POWER; MV AB The plasma-filled rod-pinch diode (PFRP) is a new X-ray source appropriate for pulsed hydrodynamic radiography with endpoint voltage in the 1-2 MV range. The use of a plasma prefill in a rod-pinch-electrode configuration results in intense concentration of a 150-300 kA, similar to 2 MeV, similar to 100 ns electron beam at the tip of a tapered tungsten rod, producing an X-ray source with a submillimeter diameter and a dose of 25 rad (CaF2) at a distance of I m. These parameters are superior to conventional vacuum diodes used for radiography in this electron-beam energy range. The narrow X-ray source distribution and enhanced emission of X-rays with energies less than 300 keV are unique features of the PFRP that may be exploited for improved resolution and dynamic range for radiographic applications. C1 [Weber, Bruce V.; Allen, Raymond J.; Commisso, Robert J.; Cooperstein, Gerald; Hinshelwood, David D.; Murphy, Donald P.; Ottinger, Paul R.; Schumer, Joseph W.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA. [Mosher, David; Phipps, David G.; Schumer, Joseph W.; Stephanakis, Stavros J.; Swanekamp, Stephen B.] L 3 Titan Corp, Silver Spring, MD 20910 USA. [Oliver, Bryan V.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Weber, BV (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA. EM bruce.weber@nrl.navy.mil RI Schumer, Joseph/D-7591-2013 NR 28 TC 14 Z9 20 U1 1 U2 4 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0093-3813 J9 IEEE T PLASMA SCI JI IEEE Trans. Plasma Sci. PD APR PY 2008 VL 36 IS 2 BP 443 EP 456 DI 10.1109/TPS.2008.918953 PN 1 PG 14 WC Physics, Fluids & Plasmas SC Physics GA 288JE UT WOS:000254981700014 ER PT J AU Wang, JJA Lara-Curzio, E King, T Graziano, JA Chan, JK AF Wang, John Jy-An Lara-Curzio, Edgar King, Thomas Graziano, Joseph A. Chan, John K. TI The integrity of ACSR full tension splice connector at higher operation temperature SO IEEE TRANSACTIONS ON POWER DELIVERY LA English DT Article DE high-temperature low sag conductors; steel-reinforced core aluminum conductor (ACSR); tensile splice connector integrity; transmission lines AB Due to the increase in power demand and limited investment in new infrastructure, existing overhead power transmission lines often need to operate at temperatures higher than those used for the original design criteria. This has led to the accelerated aging and degradation of splice connectors, which have been manifested by the formation of hotspots that have been revealed by infrared imaging during inspection. The implications of connector aging is twofold: 1) significant increase in resistivity of the splice connector (i.e., less efficient transmission of electricity) and 2) significant reduction in the connector clamping strength, which could ultimately result in separation of the power transmission line at the joint. Therefore, the splice connector appears to be the weakest link in the electric power transmission lines. This paper presents a protocol for integrating analytical and experimental approaches to evaluate the integrity of a full tension single-stage splice connector assembly. C1 [Wang, John Jy-An; Lara-Curzio, Edgar; King, Thomas] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Chan, John K.] Elect Power Res Inst, Palo Alto, CA 94304 USA. [Graziano, Joseph A.] Tennessee Valley Author, Chattanooga, TN 37402 USA. RP Wang, JJA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM wangja@oml.gov; jagraziano@tva.gov; jchan@epri.com OI Wang, Jy-An/0000-0003-2402-3832 NR 9 TC 8 Z9 8 U1 1 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0885-8977 J9 IEEE T POWER DELIVER JI IEEE Trans. Power Deliv. PD APR PY 2008 VL 23 IS 2 BP 1158 EP 1165 DI 10.1109/TPWRD.2008.917661 PG 8 WC Engineering, Electrical & Electronic SC Engineering GA 286ND UT WOS:000254851700078 ER PT J AU Reese, SJ Telschow, KL Lillo, TM Hurley, DH AF Reese, Stephen J. Telschow, Kenneth L. Lillo, Thomas M. Hurley, David H. TI On the establishment of a method for characterization of material microstructure through laser-based resonant ultrasound spectroscopy SO IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL LA English DT Article ID ACOUSTIC-RESONANCE; ELASTIC-CONSTANTS; SINGLE-CRYSTAL; INTERFEROMETER; COEFFICIENTS; VIBRATION; MODULI AB Noncontacting, laser-based resonant ultrasound spectroscopy (RUS) was applied to characterize the microstructure of a polycrystalline sample of high purity copper. The frequencies and shapes of 40 of the first 50 resonant vibrational modes were determined. The sample's elastic constants, used for theoretical prediction, were estimated using electron backscatter diffraction data to form a polycrystalline average. The difference in mode frequency between theory and experiment averages 0.7% per mode. The close agreement demonstrates that, using standard metallurgical imaging as a guide, laser-based RUS is a promising approach to characterizing material microstructure. In addition to peak location, the Q of the resonant peaks was also examined. The average Q of the laser-generated and laser-detected resonant ultrasound spectrum was 30% higher than a spectrum produced employing a piezoelectric transducer pair for excitation and detection. C1 [Reese, Stephen J.; Telschow, Kenneth L.; Lillo, Thomas M.; Hurley, David H.] Idaho Natl Lab, Mat Characterizat Dept, Idaho Falls, ID 83415 USA. RP Reese, SJ (reprint author), Idaho Natl Lab, Mat Characterizat Dept, Idaho Falls, ID 83415 USA. EM david.hurley@inl.gov RI Lilllo, Thomas/S-5031-2016; OI Lilllo, Thomas/0000-0002-7572-7883; Reese, Stephen/0000-0003-1390-292X NR 28 TC 11 Z9 11 U1 0 U2 11 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 0885-3010 J9 IEEE T ULTRASON FERR JI IEEE Trans. Ultrason. Ferroelectr. Freq. Control PD APR PY 2008 VL 55 IS 4 BP 770 EP 777 DI 10.1109/TUFFC.2008.711 PG 8 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA 285NI UT WOS:000254783100003 PM 18467221 ER PT J AU Sharpe, GJ Gorchkov, V Short, M AF Sharpe, G. J. Gorchkov, V. Short, M. TI Shock initiation of explosives: the idealized condensed-phase model SO IMA JOURNAL OF APPLIED MATHEMATICS LA English DT Article DE detonation; explosives; numerical simulation; shock waves ID INDUCED IGNITION; DETONATIONS; TRANSITION AB Many current models of condensed-phase explosives employ reaction rate law models where the form of the rate has a power-law dependence on pressure (i.e. proportional to p(n) where n is an adjustable parameter). Here, shock-induced ignition is investigated using a simple model of this form. In particular, the solutions are contrasted with those from Arrhenius rate law models as studied previously. A large n asymptotic analysis is first performed, which shows that in this limit the evolution begins with an induction stage, followed by a sequence of pressure runaways, resulting in a forward propagating, decelerating, shockless supersonic reaction wave (a weak detonation). The theory predicts secondary shock and super-detonation formation once the weak detonation reaches the Chapman-Jouguet speed. However, it is found that secondary shock formation does not occur until the weak detonation has reached a point close to the initiating shock, whereas for Arrhenius rate laws the shock forms closer to the piston. Numerical simulations are then conducted for O(1) values of n, and it is shown that the idealized condensed-phase model can qualitatively describe a wide range of experimentally observed behaviours, from growth mainly at the shock, to smooth growth of a pressure pulse behind the shock, to cases where a secondary shock and possibly a super-detonation form. The numerics are used to reveal the different evolutionary mechanisms for each of these cases. However, the evolution is found to be sensitive to n, with the whole range of behaviours covered by varying n from about 3 to 5. The simulations also confirm the predictions of the theory that pressure-dependent rate laws are unable to describe homogeneous explosive scenarios where a super-detonation forms very close to the point of initial runaway. C1 [Sharpe, G. J.] Univ Leeds, Sch Mech Engn, Leeds LS2 9JT, W Yorkshire, England. [Gorchkov, V.] Univ Illinois, Urbana, IL 61801 USA. [Short, M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Sharpe, GJ (reprint author), Univ Leeds, Sch Mech Engn, Leeds LS2 9JT, W Yorkshire, England. EM g.j.sharpe@leeds.ac.uk NR 19 TC 2 Z9 2 U1 3 U2 14 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0272-4960 J9 IMA J APPL MATH JI IMA J. Appl. Math. PD APR PY 2008 VL 73 IS 2 BP 361 EP 373 DI 10.1093/imamat/hxm065 PG 13 WC Mathematics, Applied SC Mathematics GA 284NS UT WOS:000254713700003 ER PT J AU Buchanan, ISH Mendell, MJ Mirer, AG Apte, MG AF Buchanan, I. S. H. Mendell, M. J. Mirer, A. G. Apte, M. G. TI Air filter materials, outdoor ozone and building-related symptoms in the BASE study SO INDOOR AIR LA English DT Article DE building-related symptoms; sick building syndrome; ozone; air filters; risk factor interaction ID LIMONENE OXIDATION-PRODUCTS; EYE BLINK FREQUENCY; VENTILATION FILTERS; INDOOR ENVIRONMENTS; ORGANIC-COMPOUNDS; HEALTH; CHEMISTRY; EXPOSURE; REMOVAL; QUALITY AB Used ventilation air filters have been shown to reduce indoor environmental quality and worker performance and increase symptoms, with effects stronger after reaction of filters with ozone. We analyzed data from the US EPA Building Assessment Survey and Evaluation (BASE) study to determine if ozone and specific filter media have interactive effects on building-related symptoms (BRS). We analyzed a subset of 34 buildings from the BASE study of 100 US office buildings to determine the separate and joint associations of filter medium [polyester/synthetic (PS) or fiberglass (FG)] and outdoor ozone concentration (above/below the median, 67.6 mu g/m(3)) with BRS. Using logistic regression models and general estimating equations, we estimated odds ratios (ORs) and 95% confidence intervals for the association of filter medium, ozone, and filter medium x ozone with BRS. Relative to FG + low ozone, PS alone or high ozone alone, were each significantly (P < 0.05) associated only with fatigue/difficulty concentrating (ORs = 1.93 and 1.54, respectively). However, joint exposure to both PS + high ozone, relative to FG + low ozone, had significant associations with lower and upper respiratory, cough, eye, fatigue, and headache BRS (ORs ranged from 2.26 to 5.90). Joint ORs for PS + high ozone for lower and upper respiratory and headache BRS were much greater than multiplicative, with interaction P-values < 0.10. Attributable risk proportion (ARP) estimates indicate that removing both risk factors might, given certain assumptions, reduce BRS by 26-62%. These findings suggest possible adverse health consequences from chemical interactions between outdoor ozone and PS filters in buildings. Results need confirmation before recommending changes in building operation. However, if additional research confirms causal relationships, ARP estimates indicate that appropriate filter selection may substantially reduce BRS in buildings, especially in high-ozone areas. C1 [Buchanan, I. S. H.; Mendell, M. J.; Mirer, A. G.; Apte, M. G.] Lawrence Berkeley Natl Lab, Indoor Environm Dept, Berkeley, CA 94720 USA. RP Apte, MG (reprint author), Lawrence Berkeley Natl Lab, Indoor Environm Dept, 90R3058 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM mgapte@lbl.gov FU NIOSH CDC HHS [5 R01 OH008117-02] NR 47 TC 26 Z9 26 U1 1 U2 19 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0905-6947 J9 INDOOR AIR JI Indoor Air PD APR PY 2008 VL 18 IS 2 BP 144 EP 155 DI 10.1111/j.1600-0668.2008.00519.x PG 12 WC Construction & Building Technology; Engineering, Environmental; Public, Environmental & Occupational Health SC Construction & Building Technology; Engineering; Public, Environmental & Occupational Health GA 272VF UT WOS:000253888000009 PM 18333993 ER PT J AU Apte, MG Buchanan, ISH Mendell, MJ AF Apte, M. G. Buchanan, I. S. H. Mendell, M. J. TI Outdoor ozone and building-related symptoms in the BASE study SO INDOOR AIR LA English DT Article DE ozone initiated chemistry; sick building syndrome; aldehydes; dose response; multiple logistic regression; national ambient air quality standard ID LIMONENE OXIDATION-PRODUCTS; VOLATILE ORGANIC-COMPOUNDS; STRONG AIRWAY IRRITANTS; US OFFICE BUILDINGS; EYE BLINK FREQUENCY; INDOOR CHEMISTRY; CO2 CONCENTRATIONS; MUCOUS-MEMBRANE; QUALITY; HEALTH AB Reactions between ozone and indoor contaminants may influence human health and indoor air quality. The U.S. EPA Building Assessment Survey and Evaluation (BASE) study data were analyzed for associations between ambient ozone concentrations and building-related symptom (BRS) prevalence. Multiple logistic regression (MLR) models, adjusted for personal, workplace, and environmental variables, revealed positive relationships (P < 0.05) between ambient ozone concentrations and upper respiratory (UR), dry eyes, neurological and headache BRS (odds ratios ranged from 1.03 to 1.04 per 10 mu g/m(3) increase in ambient ozone concentrations). Other BRS had marginally significant relationships with ambient ozone (P < 0.10). A linear dose-response in UR symptoms was observed with increasing ambient ozone (P = 0.03); most other symptoms showed similar but not statistically significant trends. Ambient ozone correlated with indoor concentrations of some aldehydes, a pattern suggesting the occurrence of indoor ozone chemistry. Coupled with the MLR ambient ozone-BRS analysis, this correlation is consistent with the hypothesis that ozone-initiated indoor reactions play an important role in indoor air quality and building occupant health. Replication with increased statistical power and with longitudinal data is needed. If the observed associations are confirmed as causal, ventilation system ozone removal technologies could reduce UR BRS prevalence when higher ambient ozone levels are present. C1 [Apte, M. G.; Buchanan, I. S. H.; Mendell, M. J.] Lawrence Berkeley Natl Lab, Indoor Environm Dept, Commercial Bldg & Indoor Environm Qual Grp, MS 90 3058, Berkeley, CA 94720 USA. RP Apte, MG (reprint author), Lawrence Berkeley Natl Lab, Indoor Environm Dept, Commercial Bldg & Indoor Environm Qual Grp, MS 90 3058, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM mgapte@lbl.gov FU NIOSH CDC HHS [5 R01 OH008117-02] NR 52 TC 36 Z9 36 U1 3 U2 28 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0905-6947 J9 INDOOR AIR JI Indoor Air PD APR PY 2008 VL 18 IS 2 BP 156 EP 170 DI 10.1111/j.1600-0668.2008.00521.x PG 15 WC Construction & Building Technology; Engineering, Environmental; Public, Environmental & Occupational Health SC Construction & Building Technology; Engineering; Public, Environmental & Occupational Health GA 272VF UT WOS:000253888000010 PM 18333994 ER PT J AU Singhal, SC AF Singhal, S. C. TI Solid oxide fuel cells: status, challenges and opportunities SO INDUSTRIAL CERAMICS LA English DT Article ID TEMPERATURE; TECHNOLOGY; FILMS; ANODE AB A solid oxide fuel cell (SOFC) electrochemically converts chemical energy of a fuel into electricity at temperatures from about 650 to 1000 degrees C. SOFCs offer certain advantages over lower temperature fuel cells, notably ability to use CO as a fuel rather than being poisoned by it, and high grade exhaust heat for combined heat and power, or combined cycle gas turbine applications. This paper reviews the operating principle, materials for different cell and stack components, cell designs, and applications of SOFCs. Among different designs of solid oxide fuel cells (SOFCs), the electrical resistance of tubular SOFCs is high, and areal power density (W/cm(2)) and volumetric power density (W/cm(3)) low. Planar SOFCs, in contrast, are capable of achieving very high power densities. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. RP Singhal, SC (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA. NR 15 TC 9 Z9 9 U1 2 U2 22 PU TECHNA SRL PI FAENZA PA PO BOX 174, 48018 FAENZA, ITALY SN 1121-7588 J9 IND CERAM JI Ind. Ceram. PD APR PY 2008 VL 28 IS 1 BP 53 EP 59 PG 7 WC Materials Science, Ceramics SC Materials Science GA 311AW UT WOS:000256573400008 ER PT J AU Turner, J Sverdrup, G Mann, MK Maness, PC Kroposki, B Ghirardi, M Evans, RJ Blake, D AF Turner, John Sverdrup, George Mann, Margaret K. Maness, Pin-Ching Kroposki, Ben Ghirardi, Maria Evans, Robert J. Blake, Dan TI Renewable hydrogen production SO INTERNATIONAL JOURNAL OF ENERGY RESEARCH LA English DT Review DE hydrogen production; renewable energy; electrolysis; solar; wind energy; photobiology; biomass ID DEPRIVED CHLAMYDOMONAS-REINHARDTII; CHLOROPHYLL ANTENNA SIZE; LIGHT-HARVESTING PIGMENT; CHLOROPLAST SULFATE PERMEASE; BIOMASS-DERIVED HYDROCARBONS; H-2 PRODUCTION; GAS-PRODUCTION; SEMICONDUCTING PHOTOELECTRODES; PHOTOBIOLOGICAL PRODUCTION; MICROALGAL PRODUCTIVITY AB The U.S. Department of Energy and the National Renewable Energy Laboratory Lire developing technologies to produce hydrogen from renewable, sustainable sources. A cost goal of $2.00-$3.00 kg(-1) of hydrogen has been identified as the range at which delivered hydrogen becomes cost competitive with gasoline for passenger vehicles. Electrolysis of water is a standard commercial technology for producing hydrogen. Using wind and solar resources to produce the electricity for the process creates a renewable system. Biomass-to-hydrogen processes, including gasification, pyrolysis, and fermentation, Lire less well-developed technologies. These processes offer the possibility of producing hydrogen from energy crops and from biornass materials such as forest residue and municipal sewage. Solar energy can be used to produce hydrogen from water and biomass by several conversion pathways. Concentrated solar energy can generate high temperatures at which thermochemical reactions can be used to split water. Photoelectrochemical water splitting and photobiology are long-term options for producing hydrogen from water using solar energy. All these technologies Lire in the development stage. Copyright (C) 2007 John Wiley & Sons, Ltd. C1 [Turner, John; Sverdrup, George; Mann, Margaret K.; Maness, Pin-Ching; Kroposki, Ben; Ghirardi, Maria; Evans, Robert J.; Blake, Dan] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Sverdrup, G (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM george_sverdrup@nrel.gov RI Zeng, Min/E-5884-2014 OI Zeng, Min/0000-0002-0376-3041 NR 146 TC 349 Z9 351 U1 47 U2 281 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND SN 0363-907X J9 INT J ENERG RES JI Int. J. Energy Res. PD APR PY 2008 VL 32 IS 5 BP 379 EP 407 DI 10.1002/er.1372 PG 29 WC Energy & Fuels; Nuclear Science & Technology SC Energy & Fuels; Nuclear Science & Technology GA 293FD UT WOS:000255319800003 ER PT J AU Lee, KO Zhu, J Song, J AF Lee, K. O. Zhu, J. Song, J. TI Effects of exhaust gas recirculation on diesel particulate matter morphology and NO(x) emissions SO INTERNATIONAL JOURNAL OF ENGINE RESEARCH LA English DT Article DE diesel particulates; morphology; exhaust gas recirculation; NO(x) emissions ID SOOT FORMATION; COMBUSTION; PARTICLES; FLAMES AB Diesel particulate morphology and nitrogen oxides (NO,) emissions were investigated in detail to reveal the effects of exhaust gas recirculation (EGR). The different rates of EGR were precisely controlled by using a customized engine control unit in a 1.7 l turbocharged common-rail direct-injection diesel engine. The tests, which combined two different EGR modes (i.e. constant boost pressure (CBP) and constant oxygen-to-fuel ratio (COFR)), were designed to decouple the effects of EGR thermal and dilution processes. Particulate samples were collected directly from the raw engine exhaust by using a novel thermophoretic soot-sampling system. The samples were examined and imaged with a high-resolution transmission electron microscope and quantitatively analysed by using a customized image-processing/data-acquisition system. Results showed that the particulate dimensions, number density of primary particles, and soot yield all changed significantly under various EGR rates. The NO, emissions also varied significantly as the EGR rate changed, showing a typical trade-off with respect to the data measured for particulate emissions. At low EGR rates, the thermal effect was the dominant phenomenon that affected the changes of the measured morphological characters, while at higher EGR rates the dilution effect became more important. However, the fractal geometry of diesel particulates did not change significantly between the two EGR modes, suggesting that the influence of EGR dilution was less than that of the thermal process. EGR operation providing a COFR at the same EGR rate yielded a significant benefit in particulate emissions and engine power output, while still maintaining the reduction of NO, emissions at a satisfactory level. C1 [Lee, K. O.; Zhu, J.; Song, J.] Argonne Natl Lab, Transportat Technol R&D Ctr, Argonne, IL 60439 USA. RP Lee, KO (reprint author), Argonne Natl Lab, Transportat Technol R&D Ctr, 9700 S Cass Ave, Argonne, IL 60439 USA. EM klee@anl.gov FU US Department of Energy's Office of FreedomCar & Vehicle Technologies [DE-AC02-06CH11357] FX This work has been supported by the US Department of Energy's Office of FreedomCar & Vehicle Technologies under contract DE-AC02-06CH11357. NR 27 TC 2 Z9 2 U1 0 U2 7 PU PROFESSIONAL ENGINEERING PUBLISHING LTD PI WESTMINISTER PA 1 BIRDCAGE WALK, WESTMINISTER SW1H 9JJ, ENGLAND SN 1468-0874 J9 INT J ENGINE RES JI Int. J. Engine Res. PD APR PY 2008 VL 9 IS 2 BP 165 EP 175 DI 10.1243/14680874JER02307 PG 11 WC Thermodynamics; Engineering, Mechanical; Transportation Science & Technology SC Thermodynamics; Engineering; Transportation GA 375FH UT WOS:000261099000005 ER PT J AU Christensen, RM AF Christensen, Richard M. TI A physically based cumulative damage formalism SO INTERNATIONAL JOURNAL OF FATIGUE LA English DT Article DE cumulative damage; kinetic crack; linear cumulative damage; life prediction ID KINETIC CRACK-GROWTH AB A general cumulative damage methodology is derived from the basic relation specifying crack growth rate (increment) as a power law function of the stress intensity factor. The crack is allowed to grow up to the point at which it becomes unstable, thereby determining the lifetime of the material under the prescribed stress program. The formalism applies for the case of creep to failure tinder variable stress history as well as for cyclic fatigue to failure under variable stress amplitude history. The formulation is calibrated by the creep rupture lifetimes at constant stress or the fatigue cycle lifetimes at constant stress amplitude. No empirical (non-physical) parameters are involved in the basic formulation; everything is specified in terms of experimentally determined quantities. Several examples are given showing the inadequacy of linear cumulative damage while the present nonlinear damage accumulation method overcomes these deficiencies. The present method is extended to admit probabilistic conditions. Published by Elsevier Ltd. C1 [Christensen, Richard M.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Christensen, Richard M.] Stanford Univ, Stanford, CA 94305 USA. RP Christensen, RM (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM christensen6@llnl.gov NR 14 TC 10 Z9 10 U1 0 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0142-1123 J9 INT J FATIGUE JI Int. J. Fatigue PD APR PY 2008 VL 30 IS 4 BP 595 EP 602 DI 10.1016/j.ijfatigue.2007.05.009 PG 8 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA 328SI UT WOS:000257817700002 ER PT J AU Kaiser, TB Schmidt, SE Joslyn, CA AF Kaiser, Tim B. Schmidt, Stefan E. Joslyn, Cliff A. TI Adjusting annotated taxonomies SO INTERNATIONAL JOURNAL OF FOUNDATIONS OF COMPUTER SCIENCE LA English DT Article; Proceedings Paper CT 4th International Conference on Concept Lattices and Their Applications CY OCT 30-NOV 01, 2006 CL Hammamet, TUNISIA SP El Manar Univ, Comp Sci Dept, Fac Sci, Univ Centrale, Tunis, Ambassade France, Ctr Calcul El Khawarizmi, INSAT, Inst Superieur Informat, IUT Lens, UTM, VERMEG DE annotated ordered sets; concept lattices; knowledge representation; formal concept analysis; gene ontology; taxonomies AB We show how the concept of an annotated ordered set can be used to model large taxonomically structured ontologies such as the Gene Ontology. By constructing a formal context consistent with a given annotated ordered set, their concept lattice representations are derived. We develop the fundamental mathematical relations present in this formulation, in particular deriving a conceptual pre-ordering of the taxonomy, and constructing a correspondence between the annotations of an ordered set and the closure systems of its filter lattice. We study an example from the Gene Ontology to demonstrate how the introduced technique can be utilized for taxonomy review. C1 [Kaiser, Tim B.] Tech Univ Darmstadt, D-64289 Darmstadt, Germany. [Schmidt, Stefan E.] Tech Univ Dresden, Inst Algebra, D-01602 Dresden, Germany. [Joslyn, Cliff A.] Pacific NW Natl Lab, Knowledge Syst Grp, Richland, WA 99352 USA. RP Kaiser, TB (reprint author), Tech Univ Darmstadt, Petersenstr 30, D-64289 Darmstadt, Germany. NR 10 TC 2 Z9 2 U1 2 U2 2 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0129-0541 J9 INT J FOUND COMPUT S JI Int. J. Found. Comput. Sci. PD APR PY 2008 VL 19 IS 2 BP 345 EP 358 DI 10.1142/S0129054108005711 PG 14 WC Computer Science, Theory & Methods SC Computer Science GA 297IW UT WOS:000255611400006 ER PT J AU Berkowitz, J AF Berkowitz, J. TI Absolute partial photoionization cross sections of ozone SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY LA English DT Article DE non-Koopmans orbitals; ionic states; ionization and appearance potentials; parent and fragment ions; partial cross sections ID STATIC-EXCHANGE APPROXIMATION; PHOTOELECTRON-SPECTRUM; CONFIGURATION-INTERACTION; PHOTO-EXCITATION; SPECTROSCOPY; O-3; IONIZATION; ABSORPTION; DISSOCIATION; WAVELENGTH AB Despite the current concerns about ozone, absolute partial photoionization cross sections for this molecule in the vacuum ultraviolet (valence) region have been unavailable. By eclectic re-evaluation of old/new data and plausible assumptions, such cross sections have been assembled to fill this void. (c) 2007 Elsevier B.V. All rights reserved. C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. RP Berkowitz, J (reprint author), Argonne Natl Lab, Div Chem, 9700 S Cass Ave, Argonne, IL 60439 USA. EM berkowitz@anl.gov NR 31 TC 2 Z9 2 U1 2 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1387-3806 J9 INT J MASS SPECTROM JI Int. J. Mass Spectrom. PD APR 1 PY 2008 VL 271 IS 1-3 BP 8 EP 14 DI 10.1016/j.ijms.2007.11.005 PG 7 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA 276CP UT WOS:000254119200004 ER PT J AU Mayr, P Palmer, TA Elmer, JW Specht, ED AF Mayr, Peter Palmer, Todd A. Elmer, John W. Specht, Eliot D. TI Direct observation of phase transformations in the simulated heat-affected zone of a 9Cr martensitic steel SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH LA English DT Article DE chromium steels; heat-affected zone; phase transformations; delta ferrite; retained austenite ID X-RAY-DIFFRACTION; IN-SITU OBSERVATIONS; LOW-CYCLE FATIGUE; HIGH-TEMPERATURE; ARC WELDS; FERRITIC STEELS; CHROMIUM STEEL; DELTA-FERRITE; CREEP; BORON AB An experimental test melt of a boron alloyed 9Cr-3W-3Co-V,Nb steel for high temperature applications in the thermal power generation industry was produced by vacuum induction melting. This grade of steel typically displays a homogeneous tempered martensitic microstructure in the as-received, i.e. normalised and tempered, condition. However, after welding, this microstructure is significantly altered, resulting in a loss of its desired properties. The phase transformations during simulated thermal cycles typical of those experienced in the weld heat-affected zone were directly observed by in-situ X-ray diffraction experiments using synchrotron radiation. Heating rates of 10 K s(-1) and 100 K s(-1) up to a peak temperature of 1300 degrees C are investigated here. The final microstructures observed after both simulated weld thermal cycles are primarily composed of martensite with approximately 4 % retained delta ferrite and 4 % retained austenite, by volume. With the temporal resolution of the in-situ X-ray diffraction technique, phase transformations from tempered martensite to austenite to delta ferrite during heating and to martensite during cooling were monitored. With this technique, the evolution of the final microstructure through both heating and cooling is monitored, providing additional context to the microstructural observations. C1 [Mayr, Peter] Graz Univ Technol, Inst Mat Sci Welding & Forming, IWS, A-8010 Graz, Austria. [Palmer, Todd A.; Elmer, John W.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Specht, Eliot D.] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Mayr, P (reprint author), Graz Univ Technol, Inst Mat Sci Welding & Forming, IWS, Kopernikusgasse 24, A-8010 Graz, Austria. EM peter.mayr@tugraz.at RI Mayr, Peter/C-4560-2008; Specht, Eliot/A-5654-2009 OI Mayr, Peter/0000-0003-2530-4644; Specht, Eliot/0000-0002-3191-2163 NR 31 TC 6 Z9 7 U1 1 U2 7 PU CARL HANSER VERLAG PI MUNICH PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY SN 1862-5282 J9 INT J MATER RES JI Int. J. Mater. Res. PD APR PY 2008 VL 99 IS 4 BP 381 EP 386 DI 10.3139/146.101649 PG 6 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA 300QI UT WOS:000255839900008 ER PT J AU Nandan, R Lienert, TJ DebRoy, T AF Nandan, R. Lienert, T. J. DebRoy, T. TI Toward reliable calculations of heat and plastic flow during friction stir welding of Ti-6Al-4V alloy SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH LA English DT Article DE torque; heat generation rate; boundary conditions; genetic algorithm; computational modeling ID MONTE-CARLO-SIMULATION; ALUMINUM-ALLOYS; MILD-STEEL; FLUID-FLOW; NUMERICAL-SIMULATION; 3-DIMENSIONAL HEAT; COMPLEX JOINTS; TEMPERATURE; MODEL; OPTIMIZATION AB Heat transfer and visco-plastic flow during friction stir welding of Ti-6Al-4V alloy have been modeled in three dimensions by numerically solving the equations of conservation of mass, momentum and energy using temperature dependent thermo-physical properties and temperature and strain-rate dependent viscosity values. The computed results showed that five important model parameters, i.e., the spatially variable friction coefficient, the spatially variable slip between the tool and the workpiece, the extent of viscous dissipation, the mechanical efficiency and the spatially variable heat transfer rate from the bottom surface of the workpiece significantly affected both the temperature fields and the computed torque on the tool. An important problem in the modeling of friction stir welding is that the values of these five parameters cannot be specified from fundamental principles and, and as a result, computed results are not always accurate. Here we show that by combining the heat transfer and plastic flow model with a genetic algorithm based optimization scheme, the values of the five uncertain parameters can be determined from a limited volume of experimental data so that the model predictions of peak temperatures and cooling rates match well with the experimental results. The computed results show that for the welding conditions reported in this paper, close to sticking condition prevailed at the tool workpiece interface for all the experiments. The extent of viscous dissipation converted to heat was fairly low indicating lack of intimate atomic mixing in the stir zone. Computed three dimensional pressure distributions and streamlines were consistent with defect-free reliable welds for all conditions of welding studied. C1 [Nandan, R.; DebRoy, T.] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA. [Lienert, T. J.] Los Alamos Natl Lab, Los Alamos, NM USA. RP DebRoy, T (reprint author), Penn State Univ, Dept Mat Sci & Engn, 115 Steidle Bldg, University Pk, PA 16802 USA. EM debroy@psu.edu RI DebRoy, Tarasankar/A-2106-2010 NR 44 TC 31 Z9 31 U1 2 U2 23 PU CARL HANSER VERLAG PI MUNICH PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY SN 1862-5282 J9 INT J MATER RES JI Int. J. Mater. Res. PD APR PY 2008 VL 99 IS 4 BP 434 EP 444 DI 10.3139/146.101655 PG 11 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA 300QI UT WOS:000255839900016 ER PT J AU Ulrich, TJ Sutin, AM Guyer, RA Johnson, PA AF Ulrich, T. J. Sutin, A. M. Guyer, R. A. Johnson, P. A. TI Time reversal and non-linear elastic wave spectroscopy (TR NEWS) techniques SO INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS LA English DT Article; Proceedings Paper CT 11th International Workshop on Nonlinear Elasticity in Materials CY 2006 CL Sorrento, ITALY DE time reversed acoustics; non-linear elasticity; imaging; non-destructive evaluation; crack characterization ID MODULATION; SIMULATION; SOLIDS; DAMAGE AB Non-linear elastic wave spectroscopy (NEWS) has been shown to exhibit a high degree of sensitivity to both distributed and isolated non-linear scatterers in solids. In the case of an isolated non-linear scatterer such as a crack, by combining the elastic energy localization of time reversal (TR) with NEWS, it is shown that one can isolate non-linear scatterers in solids. The experiments reviewed here present two distinct methods of combining TR and NEWS for this purpose. The techniques each have there own advantages and disadvantages, with respect to each other and other non-linear methods, which are discussed. (C) 2008 Published by Elsevier Ltd. C1 [Ulrich, T. J.; Guyer, R. A.; Johnson, P. A.] Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87545 USA. [Sutin, A. M.] Stevens Inst Technol, Dept Phys, Hoboken, NJ 07030 USA. [Guyer, R. A.] Univ Nevada, Dept Phys, Reno, NV 89557 USA. RP Ulrich, TJ (reprint author), Los Alamos Natl Lab, Geophys Grp, POB 1663, Los Alamos, NM 87545 USA. EM tju@lanl.gov OI Johnson, Paul/0000-0002-0927-4003 NR 13 TC 28 Z9 28 U1 1 U2 11 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0020-7462 J9 INT J NONLIN MECH JI Int. J. Non-Linear Mech. PD APR PY 2008 VL 43 IS 3 BP 209 EP 216 DI 10.1016/j.ijnonlinmec.2007.12.017 PG 8 WC Mechanics SC Mechanics GA 285OE UT WOS:000254785300008 ER PT J AU Jang, WY Kraynik, AM Kyriakides, S AF Jang, Wen-Yea Kraynik, Andrew M. Kyriakides, Stellos TI On the microstructure of open-cell foams and its effect on elastic properties SO INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES LA English DT Article DE open-cell foams; elastic properties; microstructure ID COMPRESSIVE RESPONSE; ALUMINUM FOAMS; MODEL; ANISOTROPY AB Synthetic open-cell foams have a complex microstructure consisting of an interconnected network of cells resulting from the foaming process. The cells are irregular polyhedra with anywhere from 9 to 17 faces in nearly monodisperse foams. The material is concentrated in the nearly straight ligaments and in the nodes where they intersect. The mechanical properties of such foams are governed by their microstructure and by the properties of the base material. In this study micro-computed X-ray tomography is used to develop 3D images of the morphology of polyester urethane and Duocel aluminum foams with different average cell sizes. The images are used to establish statistically the cell size and ligament length distributions, material distributions along the ligaments, the geometry of the nodes and cell anisotropy. The measurements are then used to build finite element foam models of increasing complexity that are used to estimate the elastic moduli. In the most idealized model the microstructure is represented as a regular Kelvin cell. The most realistic models are based on Surface Evolver simulations of random soap froth with N-3 cells in spatially periodic domains. In all models the cells are elongated in one direction, the ligaments are straight but have a nonuniform cross sectional area distribution and are modeled as shear deformable beams. With this input both the Kelvin cell models and the larger random foam models are shown to predict the elastic moduli with good accuracy but the random foams are 5-10% stiffer. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Jang, Wen-Yea; Kyriakides, Stellos] Univ Texas Austin, Res Ctr Mech Solids Struct & Mat, Austin, TX 78712 USA. [Kraynik, Andrew M.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Kyriakides, S (reprint author), Univ Texas Austin, Res Ctr Mech Solids Struct & Mat, WEW 110, Austin, TX 78712 USA. EM skk@mail.utexas.edu NR 31 TC 118 Z9 124 U1 5 U2 37 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0020-7683 J9 INT J SOLIDS STRUCT JI Int. J. Solids Struct. PD APR PY 2008 VL 45 IS 7-8 BP 1845 EP 1875 DI 10.1016/j.ijsolstr.2007.10.008 PG 31 WC Mechanics SC Mechanics GA 281BO UT WOS:000254471500001 ER PT J AU Jiang, HQ Sun, YG Rogers, JA Huang, YG AF Jiang, Hanqing Sun, Yugang Rogers, John A. Huang, Yonggang TI Post-buckling analysis for the precisely controlled buckling of thin film encapsulated by elastomeric substrates SO INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES LA English DT Article DE stretchable electronics; buckling; mechanics ID ELASTIC-MODULI; POLYMER; INTERCONNECTS; PERFORMANCE; ELECTRONICS; METROLOGY; SURFACES; SKIN AB The precisely controlled buckling of stiff thin films (e.g., Si or GaAs nano ribbons) on the patterned surface of elastomeric substrate (e.g., poly(dimethylsiloxane) (PDMS)) with periodic inactivated and activated regions was designed by Sun et al. [Sun, Y., Choi, W.M., Jiang, H., Huang, Y.Y., Rogers, J.A., 2006. Controlled buckling of semiconductor nanoribbons for stretchable electronics. Nature Nanotechnology 1, 201-207] for important applications of stretchable electronics. We have developed a post-buckling model based on the energy method for the precisely controlled buckling to study the system stretchability. The results agree with Sun et al.'s (2006) experiments without any parameter fitting, and the system can reach 120% stretchability. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Jiang, Hanqing] Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA. [Sun, Yugang] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Rogers, John A.] Univ Illinois, Beckman Inst, Dept Mat Sci & Engn, Urbana, IL 61801 USA. [Rogers, John A.] Univ Illinois, Seitz Mat Res Lab, Urbana, IL 61801 USA. [Rogers, John A.] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA. [Huang, Yonggang] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA. [Huang, Yonggang] Northwestern Univ, Dept Engn Mech, Evanston, IL 60208 USA. RP Jiang, HQ (reprint author), Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA. EM hanqing.jiang@asu.edu RI Jiang, Hanqing/B-1810-2008; Huang, Yonggang/B-6998-2009; Sun, Yugang /A-3683-2010; Rogers, John /L-2798-2016 OI Jiang, Hanqing/0000-0002-1947-4420; Sun, Yugang /0000-0001-6351-6977; NR 29 TC 33 Z9 36 U1 4 U2 33 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0020-7683 EI 1879-2146 J9 INT J SOLIDS STRUCT JI Int. J. Solids Struct. PD APR PY 2008 VL 45 IS 7-8 BP 2014 EP 2023 DI 10.1016/j.ijsolstr.2007.11.007 PG 10 WC Mechanics SC Mechanics GA 281BO UT WOS:000254471500009 ER PT J AU Vasco, DW AF Vasco, D. W. TI Zeroth-order inversion of transient pressure observations SO INVERSE PROBLEMS LA English DT Article ID SOLUTE TRANSPORT; PUMPING TESTS; METHODOLOGY; TOMOGRAPHY; MEDIA; FORMALISM; VELOCITY; AQUIFERS; FLOW AB A high frequency, asymptotic solution for transient pressure, appropriate for a medium containing smoothly-varying heterogeneity, provides a basis for efficient inverse modeling. The semi-analytic solution is trajectory based, akin to ray methods used in modeling wave propagation, and may be constructed by post-processing the output of a numerical simulator. For high frequencies, the amplitude sensitivities, the relationship between changes in flow properties and changes in pressure amplitude, are dominated by the phase term which may be computed directly from the output of the simulator. Thus, transient pressure waveforms may be inverted with little more computation than is required to invert arrival times. An application to synthetic pressure values indicates that the technique can be used to improve the fit to waveforms. An application to transient pressure data from the Migration experiment in Switzerland reveals a narrow, high conductivity pathway within a 0.5 m thick zone of fracturing. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Vasco, DW (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM dwvasco@lbl.gov RI Vasco, Donald/I-3167-2016; Vasco, Donald/G-3696-2015 OI Vasco, Donald/0000-0003-1210-8628; Vasco, Donald/0000-0003-1210-8628 NR 46 TC 3 Z9 3 U1 1 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0266-5611 J9 INVERSE PROBL JI Inverse Probl. PD APR PY 2008 VL 24 IS 2 AR 025013 DI 10.1088/0266-5611/24/2/025013 PG 21 WC Mathematics, Applied; Physics, Mathematical SC Mathematics; Physics GA 279SS UT WOS:000254375500014 ER PT J AU Fredrickson, JK Li, SMW Gaidamakova, EK Matrosova, VY Zhai, M Sulloway, HM Scholten, JC Brown, MG Balkwill, DL Daly, MJ AF Fredrickson, James K. Li, Shu-mei W. Gaidamakova, Elena K. Matrosova, Vera Y. Zhai, Min Sulloway, Heather M. Scholten, Johannes C. Brown, Mindy G. Balkwill, David L. Daly, Michael J. TI Protein oxidation: key to bacterial desiccation resistance? SO ISME JOURNAL LA English DT Article DE Hanford; ionizing radiation; desiccation; oxidative stress; protein oxidation; carbonylation; dry-climate soils ID DEINOCOCCUS-RADIODURANS; IONIZING-RADIATION; COMPARATIVE GENOMICS; GAMMA-RADIATION; RADIORESISTANCE; TOLERANCE; REPAIR AB For extremely ionizing radiation-resistant bacteria, survival has been attributed to protection of proteins from oxidative damage during irradiation, with the result that repair systems survive and function with far greater efficiency during recovery than in sensitive bacteria. Here we examined the relationship between survival of dry-climate soil bacteria and the level of cellular protein oxidation induced by desiccation. Bacteria were isolated from surface soils of the shrub-steppe of the US Department of Energy's Hanford Site in Washington State. A total of 63 isolates were used for phylogenetic analysis. The majority of isolates were closely related to members of the genus Deinococcus, with Chelatococcus, Methylobacterium and Bosea also among the genera identified. Desiccation-resistant isolates accumulated high intracellular manganese and low iron concentrations compared to sensitive bacteria. In vivo, proteins of desiccation-resistant bacteria were protected from oxidative modifications that introduce carbonyl groups in sensitive bacteria during drying. We present the case that survival of bacteria that inhabit dry-climate soils are highly dependent on mechanisms, which limit protein oxidation during dehydration. C1 [Fredrickson, James K.; Li, Shu-mei W.; Sulloway, Heather M.; Scholten, Johannes C.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Gaidamakova, Elena K.; Matrosova, Vera Y.; Zhai, Min; Daly, Michael J.] Uniformed Serv Univ Hlth Sci, Dept Pathol, Bethesda, MD 20814 USA. [Brown, Mindy G.; Balkwill, David L.] Florida State Univ, Dept Med Sci, Tallahassee, FL 32306 USA. RP Fredrickson, JK (reprint author), Pacific NW Natl Lab, Div Biol Sci, MS P7-50,POB 999, Richland, WA 99352 USA. EM jim.fredrickson@pnl.gov NR 33 TC 88 Z9 91 U1 3 U2 29 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK STREET, 9TH FLOOR, NEW YORK, NY 10013-1917 USA SN 1751-7362 J9 ISME J JI ISME J. PD APR PY 2008 VL 2 IS 4 BP 393 EP 403 DI 10.1038/ismej.2007.116 PG 11 WC Ecology; Microbiology SC Environmental Sciences & Ecology; Microbiology GA 292TJ UT WOS:000255288700005 PM 18273068 ER PT J AU Wright, MS Baker-Austin, C Lindell, AH Stepanauskas, R Stokes, HW McArthur, JV AF Wright, Meredith S. Baker-Austin, Craig Lindell, Angela H. Stepanauskas, Ramunas Stokes, Hatch W. McArthur, J. Vaun TI Influence of industrial contamination on mobile genetic elements: class 1 integron abundance and gene cassette structure in aquatic bacterial communities SO ISME JOURNAL LA English DT Article DE class 1 integron; gene cassette; mobile genetic element; metals; environment ID ANTIBIOTIC-RESISTANCE; ENVIRONMENTAL DNA; EVOLUTION; DIVERSITY; INTEGRONS; GENOME; INNOVATION; TRANSPOSON; RESOURCE; RECOVERY AB The acquisition of new genetic material via horizontal gene transfer allows bacteria to rapidly evolve. One key to estimating the contribution of horizontal gene transfer to bacterial evolution is to quantify the abundance of mobile genetic elements (MGEs) in bacterial communities under varying degrees of selective pressure. We quantified class 1 integrase (intl1) gene abundance in total community DNA extracted from contaminated and reference riverine and estuarine microhabitats, and in metal- or antibiotic-amended freshwater microcosms. The intl1 gene was more abundant in all contaminant-exposed communities indicating that relative gene transfer potential is higher in these communities. A second key to assessing the contributions of MGEs to bacterial evolution is to examine the structure and function of the MGE-associated gene pool. We determined that the gene cassette pool is a novel and diverse resource available for bacterial acquisition, but that contamination has no discernible effect on cassette richness. Gene cassette profiles were more similar within sites than among sites, yet bacterial community profiles were not, suggesting that selective pressures can shape the structure of the gene cassette pool. Of the 46 sequenced gene cassette products, 37 were novel sequences, while the 9 gene cassettes with similarity to database sequences were primarily to hypothetical proteins. That class 1 integrons are ubiquitous and abundant in environmental bacterial communities indicates that this group of MGEs can play a substantial role in the acquisition of a diverse array of gene cassettes beyond their demonstrated impact in mediating multidrug resistance in clinical bacteria. C1 [Wright, Meredith S.; Baker-Austin, Craig; Lindell, Angela H.; McArthur, J. Vaun] Univ Georgia, Savannah River Ecol Lab, Aiken, SC USA. [Stepanauskas, Ramunas] Bigelow Lab Ocean Sci, W Boothbay Harbor, ME USA. [Stokes, Hatch W.] Macquarie Univ, Dept Chem & Biomol Sci, Sydney, NSW 2109, Australia. RP Wright, MS (reprint author), Univ Montana, Flathead Lake Biol Stn, 32125 Bio Stn Lane, Polson, MT 59860 USA. EM meredith.wright@umontana.edu OI Stepanauskas, Ramunas/0000-0003-4458-3108 NR 37 TC 68 Z9 73 U1 5 U2 32 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK STREET, 9TH FLOOR, NEW YORK, NY 10013-1917 USA SN 1751-7362 J9 ISME J JI ISME J. PD APR PY 2008 VL 2 IS 4 BP 417 EP 428 DI 10.1038/ismej.2008.8 PG 12 WC Ecology; Microbiology SC Environmental Sciences & Ecology; Microbiology GA 292TJ UT WOS:000255288700007 PM 18273063 ER PT J AU Seong, TY Booker, GR Norman, AG Stringfellow, GB AF Seong, Tae-Yeon Booker, G. Roger Norman, Andrew G. Stringfellow, Gerald B. TI Modulated structures and atomic ordering in InP(y)Sb(1-y) layers grown by organometallic vapor phase epitaxy SO JAPANESE JOURNAL OF APPLIED PHYSICS LA English DT Article DE transmission electron microscopy; fine scale modulated contrast; speckled contrast; needle-like contrast; atomic ordering; InPSb; organometallic vapor phase epitaxy; spinodal decomposition; III-V compound semiconductors ID III-V; SURFACE RECONSTRUCTION; SPINODAL DECOMPOSITION; ALLOY; DISORDER; TERNARY; SIZE AB Modulated structure in organometallic vapour phase epitaxially grown InPSb(001) layers has been investigated using transmission electron microscopy (TEM) and transmission electron diffraction (TED). TEM results show that a fine scale modulated contrast (15-20 nm) and a fine scale speckled contrast (similar to 5nm) are simultaneously present. In addition, a fine needle-like contrast (similar to 1.5-2.1 nm) is present. TED patterns show that ((1) over bar 11) and (1(1) over bar 1)CuPt-type ordered variants are present. Diffuse streaks along the [(1) over bar 10] direction are also observed in the [110] TED pattern and found to be associated with the needle-like contrast. A possible model involving segregation of atoms associated with rows of missing dimers in the surface reconstruction or the presence of antiphase boundaries (APBs) and domain boundaries in CuPt-type ordered regions present in the layers is suggested to explain the origin of the needle-like contrast. C1 [Seong, Tae-Yeon] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea. [Booker, G. Roger] Univ Oxford, Dept Mat, Oxford OX1 3PH, England. [Norman, Andrew G.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Stringfellow, Gerald B.] Univ Utah, Dept Mat Sci & Engn, Salt Lake City, UT 84112 USA. RP Seong, TY (reprint author), Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea. EM tyseong@korea.ac.kr RI Norman, Andrew/F-1859-2010 OI Norman, Andrew/0000-0001-6368-521X NR 24 TC 2 Z9 2 U1 0 U2 7 PU JAPAN SOCIETY APPLIED PHYSICS PI TOKYO PA KUDAN-KITA BUILDING 5TH FLOOR, 1-12-3 KUDAN-KITA, CHIYODA-KU, TOKYO, 102-0073, JAPAN SN 0021-4922 J9 JPN J APPL PHYS JI Jpn. J. Appl. Phys. PD APR PY 2008 VL 47 IS 4 BP 2209 EP 2212 DI 10.1143/JJAP.47.2209 PG 4 WC Physics, Applied SC Physics GA 295BC UT WOS:000255449000067 ER PT J AU Misra, A Demkowicz, MJ Wang, J Hoagland, RG AF Misra, A. Demkowicz, M. J. Wang, J. Hoagland, R. G. TI The multiscale modeling of plastic deformation in metallic nanolayered composites SO JOM LA English DT Article ID THIN-FILMS; MULTILAYERS; INTERFACES; MECHANISMS; STRENGTH; SLIP; BEHAVIOR AB Metallic nanolayered composites exhibit very high flow strength and stable plastic flow to large strains. The explanation of the unusual mechanical behavior of these materials in terms of the atomic structures of the interfaces and layer thickness ranging from manometers to micrometers requires atomistic simulations, dislocation theory, and crystal plasticity modeling across length scales. C1 [Misra, A.; Demkowicz, M. J.; Wang, J.; Hoagland, R. G.] Los Alamos Natl Lab, Ctr Integrated Nano Tech, Los Alamos, NM 87545 USA. RP Misra, A (reprint author), Los Alamos Natl Lab, Ctr Integrated Nano Tech, POB 1663, Los Alamos, NM 87545 USA. EM amisra@lanl.gov RI Hoagland, Richard/G-9821-2012; Misra, Amit/H-1087-2012; Wang, Jian/F-2669-2012 OI Wang, Jian/0000-0001-5130-300X NR 19 TC 36 Z9 37 U1 3 U2 35 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 1047-4838 J9 JOM-US JI JOM PD APR PY 2008 VL 60 IS 4 BP 39 EP 42 DI 10.1007/s11837-008-0047-6 PG 4 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA 288OI UT WOS:000254995300010 ER PT J AU Johnson, J Findley, KO Doty, FP AF Johnson, J. Findley, K. O. Doty, F. P. TI The deformation and fracture behavior of the scintillating crystal cadmium tungstate SO JOM LA English DT Article ID CDWO4 AB Cadmium tungstate single crystals are excellent scintillators and have vast potential as gamma- and x-ray detectors. However, they are brittle and as a result, are difficult to manufacture. An understanding of deformation and fracture behavior is necessary in order to improve the ability to fabricate these crystals. Thus, this paper explores the deformation and fracture behavior of CdWO4 single crystals using nano- and microindentation techniques. C1 [Findley, K. O.] Colorado Sch Mines, Dept Met Engn, Golden, CO 80401 USA. [Doty, F. P.] Sandia Natl Labs, Engineered Mat Dept, Tech Staff, Livermore, CA 94550 USA. EM mfindley@mines.edu RI Findley, Kip/H-8845-2013 OI Findley, Kip/0000-0001-7068-9446 NR 10 TC 3 Z9 3 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 1047-4838 J9 JOM-US JI JOM PD APR PY 2008 VL 60 IS 4 BP 56 EP 58 DI 10.1007/s11837-008-0050-y PG 3 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA 288OI UT WOS:000254995300013 ER PT J AU Zhang, F Long, GG Levine, LE Ilavsky, J Jemian, PR AF Zhang, F. Long, G. G. Levine, L. E. Ilavsky, J. Jemian, P. R. TI Quantitative characterization of the contrast mechanisms of ultra-small-angle X-ray scattering imaging SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID SYNCHROTRON-RADIATION; DYNAMICAL THEORY; POLYPROPYLENE; REFRACTION; RESOLUTION; PARTICLES; CRYSTALS; STRENGTH AB A general treatment of X-ray imaging contrast for ultra-small-angle X-ray scattering (USAXS) imaging is presented; this approach makes use of phase propagation and dynamical diffraction theory to account quantitatively for the intensity distribution at the detector plane. Simulated results from a model system of micrometre-sized spherical SiO2 particles embedded in a polypropylene matrix show good agreement with experimental measurements. Simulations by means of a separate geometrical ray-tracing method also account for the features in the USAXS images and offer a complementary view of small-angle X-ray scattering as a contrast mechanism. The ray-tracing analysis indicates that refraction, in the form of Porod scattering, and, to a much lesser extent, X-ray reflection account for the USAXS imaging contrast. C1 [Zhang, F.; Long, G. G.; Ilavsky, J.; Jemian, P. R.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. Natl Inst Stand & Technol, Div Met, Gaithersburg, MD 20899 USA. RP Long, GG (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM gglong@aps.anl.gov RI Zhang, Fan/A-6133-2010; USAXS, APS/D-4198-2013; OI Ilavsky, Jan/0000-0003-1982-8900 NR 24 TC 9 Z9 9 U1 1 U2 9 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD APR PY 2008 VL 41 BP 416 EP 427 DI 10.1107/S0021889808000733 PN 2 PG 12 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 274HP UT WOS:000253992700022 ER PT J AU Lunde, CS Rouhani, S Remis, JP Glaeser, RM AF Lunde, Christopher S. Rouhani, Shahab Remis, Jonathan P. Glaeser, Robert M. TI Microcrystal screening with a novel design for beamline-mountable crystallization wells SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article ID PROTEIN CRYSTALLIZATION; MEMBRANE-PROTEINS AB A simple and flexible system is described for in situ screening of microcrystals of membrane proteins that are grown within a connected-bilayer matrix formed by hydrated lipids. Using sheets of appropriate polymer materials to create a thin multiwell cassette, crystals can be evaluated by UV microscopy as well as by more conventional forms of light microscopy. Crystallization wells can be individually excised and mounted for diffraction screening on a synchrotron X-ray source. In addition, crystallization hit rates were significantly improved by employing a vapor diffusion approach rather than the batch crystallization method that is normally used with hydrated-lipid gels. C1 [Lunde, Christopher S.; Rouhani, Shahab; Remis, Jonathan P.; Glaeser, Robert M.] Univ Calif Berkeley, QB Inst 3, Berkeley, CA 94720 USA. [Lunde, Christopher S.] Theravance, Dept Mol & Cell Biol, San Francisco, CA 94080 USA. [Glaeser, Robert M.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Glaeser, Robert M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Lunde, CS (reprint author), Univ Calif Berkeley, QB Inst 3, Berkeley, CA 94720 USA. EM clunde@theravance.com NR 8 TC 2 Z9 2 U1 0 U2 1 PU BLACKWELL PUBLISHING PI OXFORD PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXON, ENGLAND SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD APR PY 2008 VL 41 BP 483 EP 486 DI 10.1107/S0021889808000952 PN 2 PG 4 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 274HP UT WOS:000253992700032 ER PT J AU Lister, TE Fox, RV AF Lister, Tedd E. Fox, Robert V. TI Electrochemical synthesis of 2,2-dinitropropanol SO JOURNAL OF APPLIED ELECTROCHEMISTRY LA English DT Article DE oxidative nitration; electrolysis; plasticizer; nitroparaffin; mediator; energetic material ID OXIDATIVE NITRATION; REACTION-MECHANISM; SOLID ELECTRODES; SALTS; NITRITE AB This paper describes electrochemical approaches to the synthesis of 2,2-dinitropropanol (DNPOH) and discusses the potential for pilot-plant scale synthesis. In this work, the anode of the electrochemical cell replaces the chemical oxidants used in the conventional synthesis for the purpose of reducing secondary waste and the consequent disposal cost. The electrosynthesis reactions described in this work use the common starting material, nitroethane (NE). The synthesis of the end-product DNPOH involves two steps: (1) electrochemical oxidative nitration (addition of a geminal NO2 group); and, (2) condensation with formaldehyde. Electrochemical oxidation of NE was first attempted by direct oxidation on a Pt electrode surface resulting in low yield and significant generation of undesirable by-product. Alternatively, two different mediators were employed resulting in a dramatic improvement of yield for the oxidative nitration step. The two different mediators used, Ag+/Ag-0 and Fe(CN)(6)(-3/-4) , were derived from the chemical oxidants known to perform the oxidative nitration. The Fe(CN)(6)(-3/-4) mediator demonstrated the best promise for scale-up and industrial production due to the lower cost of the mediator and the solubility of the mediator lending it to greater ease-of-use in conventional electrochemical cell designs. C1 [Lister, Tedd E.; Fox, Robert V.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Lister, TE (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA. EM tedd.lister@inl.gov NR 12 TC 0 Z9 0 U1 1 U2 8 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0021-891X J9 J APPL ELECTROCHEM JI J. Appl. Electrochem. PD APR PY 2008 VL 38 IS 4 BP 523 EP 529 DI 10.1007/s10800-007-9467-1 PG 7 WC Electrochemistry SC Electrochemistry GA 275RR UT WOS:000254089800013 ER PT J AU Alsmadi, AM Velthuis, SGET Weber, ZJ Welp, U Shi, H Lederman, D AF Alsmadi, A. M. Velthuis, S. G. E. te Weber, Z. J. Welp, U. Shi, H. Lederman, D. TI Field cooling dependence of the anisotropy in exchange biased FeF(2)/Co films SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB The magnetization reversal in exchange biased FeF(2)/Co films was studied using polarized neutron reflectometry and magneto-optical imaging (MOI). After field cooling in a field H perpendicular to the c axis (the easy axis of FeF(2)) through the FeF(2) Neel temperature, the magnetization curve measured with H parallel to the c axis showed a double loop, one with a positive exchange bias field (H(E)) and one with a negative H(E). This behavior suggests that the antiferromagnet (AFM) is split into two types of domains with H(E) in opposite directions along the c axis. However, the observation of spin-flip reflectivity in the field region separating the two loops indicates that some rotation of the Co magnetization also occurred during reversal. Concurrently, small inhomogeneous domains with sizes much less than 30 mu m were observed using MOI. This implies that small AFM domains with opposing H(E) created during cooling and the resulting frustration of the interface exchange interaction with the ferromagnet are responsible for the perpendicular magnetization during reversal. (c) 2008 American Institute of Physics. C1 [Alsmadi, A. M.] Hashemite Univ, Dept Phys, Zarqa 13115, Jordan. [Alsmadi, A. M.; Velthuis, S. G. E. te; Weber, Z. J.; Welp, U.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Shi, H.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA. [Shi, H.; Lederman, D.] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA. RP Alsmadi, AM (reprint author), Hashemite Univ, Dept Phys, Zarqa 13115, Jordan. EM alsmadi_abd@yahoo.com RI te Velthuis, Suzanne/I-6735-2013 OI te Velthuis, Suzanne/0000-0002-1023-8384 NR 10 TC 0 Z9 0 U1 1 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07C114 DI 10.1063/1.2839307 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200328 ER PT J AU Bernstein, A Bowden, NS Misner, A Palmer, T AF Bernstein, A. Bowden, N. S. Misner, A. Palmer, T. TI Monitoring the thermal power of nuclear reactors with a prototype cubic meter antineutrino detector SO JOURNAL OF APPLIED PHYSICS LA English DT Article AB In this paper, we estimate how quickly and how precisely a reactor's operational status and thermal power can be monitored over hour to month time scales, using the antineutrino rate as measured by a cubic meter scale detector. Our results are obtained from a detector we have deployed and operated at 25 m standoff from a reactor core. This prototype can detect a prompt reactor shutdown within 5 h and monitor relative thermal power to within 7 days. Monitoring of short-term power changes in this way may be useful in the context of International Atomic Energy Agency's reactor safeguards regime or other cooperative monitoring regimes. (c) 2008 American Institute of Physics. C1 [Bernstein, A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Bowden, N. S.] Sandia Natl Labs, Livermore, CA 94550 USA. [Misner, A.; Palmer, T.] Oregon State Univ, Dept Nucl Engn, Corvallis, OR 97331 USA. RP Bernstein, A (reprint author), Lawrence Livermore Natl Lab, 7000 E Ave, Livermore, CA 94550 USA. EM bernstein3@1ln1.gov OI Bowden, Nathaniel/0000-0002-6115-0956 NR 12 TC 28 Z9 28 U1 1 U2 2 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 074905 DI 10.1063/1.2899178 PG 10 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200106 ER PT J AU Bourne, NK Brown, EN Millett, JCF Gray, GT AF Bourne, N. K. Brown, E. N. Millett, J. C. F. Gray, G. T., III TI Shock, release and Taylor impact of the semicrystalline thermoplastic polytetrafluoroethylene SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID EQUATION-OF-STATE; STRAIN-RATE; COMPRESSION; PTFE; TEMPERATURE; TRANSITION; POLYMERS AB The high strain-rate response of polymers is a subject that has gathered interest over recent years due to their increasing engineering importance, particularly in load bearing applications subject to extremes of pressure and strain rate. The current work presents two specific sets of experiments interrogating the effect of dynamic, high-pressure loading in the regime of the phase II to phase III pressure-induced crystalline phase transition in polytetrafluoroethylene (PTFE). These are gas-gun driven plate- and Taylor impact. Together these experiments highlight several effects associated with the dynamic, pressure-induced phase transitions in PTFE. An elevated release wave speed shows evidence of a pressure-induced phase change at a stress commensurate with that observed statically. It is shown that convergence between analytic derivations of release wave speed and the data requires the phase II to III transition to occur. Taylor impact is an integrated test that highlights continuum behavior that has origin in mesoscale response. There is a rapid transition from ductile to brittle behavior observed that occurs at a pressure consistent with this phase transition. C1 [Bourne, N. K.; Millett, J. C. F.] AWE, Reading RG7 4PR, Berks, England. [Brown, E. N.; Gray, G. T., III] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Bourne, NK (reprint author), AWE, Reading RG7 4PR, Berks, England. EM neil.bourne@mac.com OI Brown, Eric/0000-0002-6812-7820 NR 30 TC 13 Z9 13 U1 0 U2 12 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 074902 DI 10.1063/1.2891249 PG 9 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200103 ER PT J AU Brown, G AF Brown, G. TI Novel nanophysics in antiferromagnetic Heisenberg chains SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB Recently, thermoinduced magnetization (TiM) has been predicted to lead to ferromagnetic properties in nanoparticles of antiferromagnetic materials below the ordering temperature. Specifically, the susceptibility is found to increase linearly as the temperature is increased. Here, the magnetic properties of linear chains of three-dimensional classical Heisenberg spins are calculated both analytically and using Monte Carlo techniques. TiM is shown to be associated with the ordering of the spins induced by a single-site uniaxial anisotropy, and the per-spin susceptibility is found to be approximately independent of the number of spins in the chain. For large anisotropies, TiM is shown analytically to be associated with the thermal fluctuations of individual spins, in contrast to current theories. C1 Oak Ridge Natl Lab, Ctr Computat Sci, Oak Ridge, TN 37831 USA. RP Brown, G (reprint author), Oak Ridge Natl Lab, Ctr Computat Sci, Oak Ridge, TN 37831 USA. EM 6bg@ornl.gov RI Brown, Gregory/F-7274-2016 OI Brown, Gregory/0000-0002-7524-8962 NR 9 TC 1 Z9 1 U1 0 U2 4 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07D504 DI 10.1063/1.2828718 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200432 ER PT J AU Bryan, MT Fry, PW Fischer, PJ Allwood, DA AF Bryan, M. T. Fry, P. W. Fischer, P. J. Allwood, D. A. TI Observation of field-induced domain wall propagation in magnetic nanowires by magnetic transmission x-ray microscopy SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID DYNAMICS; MOTION AB Magnetic transmission x-ray microscopy (M-TXM) is used to image domain walls in magnetic ring structures formed by a 300 nm wide, 24 nm thick Ni(81)Fe(19) nanowire. Both transverse- and vortex-type domain walls are observed after application of different field sequences. Domain walls can be observed by comparing images obtained from opposite field sequences or else domain wall propagation observed by comparing successive images in a particular field sequence. This demonstrates the potential use of M-TXM in developing and understanding planar magnetic nanowire behavior. (C) 2008 American Institute of Physics. C1 [Bryan, M. T.; Allwood, D. A.] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England. [Fry, P. W.] Univ Sheffield, Ctr Nanosci & Technol, Sheffield S3 7HQ, S Yorkshire, England. [Fischer, P. J.] LBNL CXRO, Berkeley, CA 94720 USA. RP Allwood, DA (reprint author), Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England. EM d.allwood@sheffield.ac.uk RI Fischer, Peter/A-3020-2010; MSD, Nanomag/F-6438-2012 OI Fischer, Peter/0000-0002-9824-9343; NR 22 TC 8 Z9 8 U1 0 U2 8 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07D909 DI 10.1063/1.2832656 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200489 ER PT J AU Buchanan, KS Hoffmann, A Novosad, V Bader, SD AF Buchanan, K. S. Hoffmann, A. Novosad, V. Bader, S. D. TI Translational-mode dynamics of exchange-biased vortices SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID DISKS AB Recent investigations of magnetic vortices in ferromagnetic (FM)/antiferromagnetic bilayer circular dots show that a magnetic vortex pattern can be imprinted in the antiferromagnet when the bilayers are cooled through the blocking temperature of the system after setting the magnetic state in the FM. Here we investigate the effects of the patterned pinning profile on the magnetization dynamics of these exchange-biased magnetic vortices. A magnetic vortex in a micron-sized magnetically soft element exhibits a low-frequency translational dynamic mode and, since the frequency of this mode is defined by the shape of the energy profile of a displaced vortex, the addition of a vortex-shaped pinning-field profile should influence its motion. Micromagnetic simulations show that the frequency scales linearly with the magnitude of the local pinning field. In a 500 nm permalloy dot, 15 nm thick, a more than twofold increase in the frequency is expected for experimentally realizable exchange-bias fields. C1 [Buchanan, K. S.; Hoffmann, A.; Bader, S. D.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Hoffmann, A.; Novosad, V.; Bader, S. D.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Buchanan, KS (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM buchanan@anl.gov RI Hoffmann, Axel/A-8152-2009; Bader, Samuel/A-2995-2013; Novosad, Valentyn/C-2018-2014; Novosad, V /J-4843-2015; OI Hoffmann, Axel/0000-0002-1808-2767; Buchanan, Kristen/0000-0003-0879-0038 NR 23 TC 3 Z9 4 U1 0 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B102 DI 10.1063/1.2830643 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200178 ER PT J AU Chaudhury, RP Lorenz, B Wang, YQ Sun, YY Chu, CW AF Chaudhury, R. P. Lorenz, B. Wang, Y. Q. Sun, Y. Y. Chu, C. W. TI Magnetic field induced ferroelectricity in Mn(0.9)Fe(0.1)WO(4) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID DIFFRACTION; PHASES AB We discovered that an external magnetic field does induce a ferroelectric phase in Mn(0.9)Fe(0.1)WO(4) below T(1)=12 K. The spontaneous polarization appears along the b axis upon applying a magnetic field above 4 T. The temperature and magnetic field dependencies of the spontaneous polarization show a strong coupling between the magnetic and ferroelectric orders. We correlate the ferroelectric transitions with dielectric constant and magnetization anomalies. Our results are interpreted in terms of recent theories relating the magnetic order induced ferroelectricity in multiferroic compounds to the inversion symmetry breaking effects of unconventional magnetic structures. C1 TCSUH, Houston, TX 77204 USA. Univ Houston, Dept Phys, Houston, TX 77204 USA. [Chu, C. W.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Chu, C. W.] Hong Kong Univ Sci & Technol, Hong Kong, Hong Kong, Peoples R China. RP Chaudhury, RP (reprint author), TCSUH, Houston, TX 77204 USA. EM rajit.chaudhury@mail.uh.edu NR 7 TC 1 Z9 1 U1 0 U2 1 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07E312 DI 10.1063/1.2834245 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200570 ER PT J AU Cheng, R Bader, SD Fradin, FY AF Cheng, Ruihua Bader, S. D. Fradin, F. Y. TI Magnetic properties of Fe on vicinal Pt(111) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID FILMS; FERROMAGNETISM; ANISOTROPY; SURFACES; MOMENTS AB A magnetic system such as Fe/Pt shows strong magnetic anisotropy due to the contribution of the interface. Pt is known to be nearly ferromagnetic and can have an induced magnetic moment when it is in proximity to 3d ferromagnetic atoms. Both the magnetic moment and the magnetic anisotropy of the materials are enhanced on the step surface due to the symmetry breaking by the introduction of atomic steps on vicinal substrate. In order to study the effect of step-induced anisotropy, we investigate the magnetic properties of Fe grown on a curved Pt(111) single crystal that provides a continuous gradient in step density. Fe grown on high vicinal angle surfaces has larger values of both the saturation magnetization M(s) and coercivity H(C) compared with the flat surface. The atomic steps of the vicinal surface greatly affect the magnetic properties of ultrathin Fe films. The anisotropy of Fe on the curved Pt(111) surface is related to the step density of the substrate. (c) 2008 American Institute of Physics. C1 [Cheng, Ruihua] Indiana Univ Purdue Univ, Dept Phys, Indianapolis, IN 46202 USA. [Bader, S. D.; Fradin, F. Y.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Cheng, R (reprint author), Indiana Univ Purdue Univ, Dept Phys, 402 N Blackford St, Indianapolis, IN 46202 USA. EM rucheng@iupui.edu RI Bader, Samuel/A-2995-2013 NR 19 TC 1 Z9 1 U1 0 U2 11 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B729 DI 10.1063/1.2838774 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200292 ER PT J AU Chiba, D Yu, KM Walukiewicz, W Nishitani, Y Matsukura, F Ohno, H AF Chiba, D. Yu, K. M. Walukiewicz, W. Nishitani, Y. Matsukura, F. Ohno, H. TI Properties of Ga(1-x)Mn(x)As with high x (> 0.1) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID SEMICONDUCTORS; FERROMAGNETISM; (GA,MN)AS; TRANSPORT AB We have investigated the magnetic and the crystalline properties of a set of Ga(1-x)Mn(x)As layers with high nominal Mn compositions (x=0.101-0.198). Magnetization measurements and combined channeling Rutherford backscattering (c-RBS) and particle induced x-ray emission (c-PIXE) measurements have been performed to determine the effective Mn composition x(eff) and the fraction of Mn atoms at various lattice sites. Here, x(eff) determined from magnetization measurements, which increases with increasing x, is consistent with the results determined from c-RBS-PIXE measurements. (c) 2008 American Institute of Physics. C1 [Chiba, D.; Nishitani, Y.; Matsukura, F.; Ohno, H.] Tohoku Univ, Elect Commun Res Inst, Lab Nanoelect & Spintron, Aoba Ku, Sendai, Miyagi 9808577, Japan. [Chiba, D.; Matsukura, F.; Ohno, H.] Japan Sci & Technol Agcy, Semicond Spintron Project, Sendai, Miyagi 9800023, Japan. [Yu, K. M.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Elect Mat Program, Berkeley, CA 94549 USA. RP Ohno, H (reprint author), Tohoku Univ, Elect Commun Res Inst, Lab Nanoelect & Spintron, Aoba Ku, Katahira 2-1-1, Sendai, Miyagi 9808577, Japan. EM dchiba@riec.tohoku.ac.jp; ohno@riec.tohoku.ac.jp RI Ohno, Hideo/E-6453-2010; Yu, Kin Man/J-1399-2012; Chiba, Daichi/D-3438-2015 OI Yu, Kin Man/0000-0003-1350-9642; Chiba, Daichi/0000-0002-6631-5131 NR 15 TC 15 Z9 15 U1 0 U2 6 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07D136 DI 10.1063/1.2837469 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200416 ER PT J AU Choi, Y Yoo, YZ Chmaissem, O Ullah, A Kolesnik, S Kimball, CW Haskel, D Jiang, JS Bader, SD AF Choi, Y. Yoo, Y. Z. Chmaissem, O. Ullah, A. Kolesnik, S. Kimball, C. W. Haskel, D. Jiang, J. S. Bader, S. D. TI Net Mn moment due to canted spins at SrRuO(3)/SrMnO(3) interfaces SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID OXIDES AB A net moment was observed from Mn in a SrRuO(3)/SrMnO(3) (SRO/SMO) superlattice film via element-specific x-ray resonant magnetic techniques. The collective magnetic behavior of the SRO and SMO layers is significantly modified by their exchange interaction. Bulk magnetometry shows a two-step, easy-axis magnetization reversal process, and x-ray measurements reveal that the reversal with higher coercivity involves the magnetization in the SMO layers. The results provide strong evidence for the presence of pinned SRO magnetization at the SRO/SMO interface. X-ray measurements and micromagnetic simulations reveal that the net Mn moment is due to a canted antiferromagnetic spin configuration in the SMO layers. (c) 2008 American Institute of Physics. C1 [Choi, Y.; Jiang, J. S.; Bader, S. D.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Choi, Y.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA. [Yoo, Y. Z.; Chmaissem, O.; Ullah, A.; Kolesnik, S.; Kimball, C. W.] No Illinois Univ, Dept Phys, Inst NanoSci Engn & Technol, De Kalb, IL 60115 USA. [Haskel, D.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Choi, Y (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM yschoi@anl.gov RI Bader, Samuel/A-2995-2013 NR 19 TC 3 Z9 3 U1 0 U2 1 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B517 DI 10.1063/1.2830962 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200251 ER PT J AU Choi, Y Jiang, JS Pearson, JE Bader, SD Liu, JP AF Choi, Y. Jiang, J. S. Pearson, J. E. Bader, S. D. Liu, J. P. TI Element-specific recoil loops in Sm-Co/Fe exchange-spring magnets SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID PERMANENT-MAGNETS; ENERGY PRODUCT; THIN-FILMS; MAGNETIZATION; HYSTERESIS; BEHAVIOR AB In two-phase nanocomposite magnets, open recoil loops have shown to be sensitive to interphase interfacial conditions and have been often used to characterize the interphase exchange coupling. Typically, the open recoil loops are attributed to the soft phase volume that is decoupled from the hard phase. Our element-specific magnetic measurements on bilayer Sm-Co/Fe exchange-spring magnets reveal that open recoil loops are present not only in the soft Fe layer but also in the hard Sm-Co layer and that the Fe- and Sm-specific remanence curves are similar to each other. The experimental results and micromagnetic modeling reveal that the observed open recoil loops can originate from the anisotropy variations in the hard Sm-Co layer. (C) 2008 American Institute of Physics. C1 [Choi, Y.; Jiang, J. S.; Pearson, J. E.; Bader, S. D.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Liu, J. P.] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA. RP Choi, Y (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM yschoi@anl.gov RI Bader, Samuel/A-2995-2013 NR 21 TC 5 Z9 5 U1 0 U2 7 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07E132 DI 10.1063/1.2830231 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200544 ER PT J AU Clark, AE Restorff, JB Wun-Fogle, M Wu, D Lograsso, TA AF Clark, A. E. Restorff, J. B. Wun-Fogle, M. Wu, D. Lograsso, T. A. TI Temperature dependence of the magnetostriction and magnetoelastic coupling in Fe(100-x)Al(x) (x=14.1,16.6,21.5,26.3) and Fe(50)Co(50) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID IRON-ALUMINUM ALLOYS; FE-GA; SINGLE-CRYSTAL; ELASTICITY AB In this paper, we report magnetostriction measurements, (lambda(100)) on Fe-rich Fe-Al alloys and Fe(50)Co(50) as functions of temperature from 77 K to room temperature (RT). From these measurements and elastic constant (c') measurements, the tetragonal magnetoelastic coupling constants (b(1)'s) were calculated. Significant differences were found between our RT measurements and earlier magnetostriction measurements for the higher Al concentration alloys (16.6%, 21.5%, 26.3% Al) and the Fe(50)Co(50) alloy. Reminiscent of the temperature dependence of lambda(100) for pure Fe, magnetostriction changes with temperature are minimal for Fe-Al alloys having the disordered bcc (A2) structure (x < 19% Al). In contrast, the alloy possessing the ordered (D0(3)) structure shows an anomalous decrease in magnetostriction in lambda(100) with decreasing temperature. For the Fe-Al alloy system, the magnetoelastic coupling constant, vertical bar b(1)vertical bar, exhibits a peak at room temperature maximizing at 16.6% Al with a value of 12.3 MJ/m(3). For Fe(50)Co(50), vertical bar b(1)vertical bar was calculated to be similar to 34 MJ/m(3) at room temperature. (C) 2008 American Institute of Physics. C1 [Restorff, J. B.; Wun-Fogle, M.] USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD 20817 USA. [Clark, A. E.] Clark Associates, Adelphi, MD 20783 USA. [Wu, D.; Lograsso, T. A.] Ames Lab, Ames, IA 50011 USA. RP Wun-Fogle, M (reprint author), USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD 20817 USA. EM marilyn.wun-fogle@navy.mil NR 14 TC 25 Z9 25 U1 1 U2 12 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B310 DI 10.1063/1.2831360 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200206 ER PT J AU Davis, BK Torikachvili, MS Mun, ED Frederick, JC Miller, GJ Thimmaiah, S Bud'ko, SL Canfield, PC AF Davis, B. K. Torikachvili, M. S. Mun, E. D. Frederick, J. C. Miller, G. J. Thimmaiah, S. Bud'ko, S. L. Canfield, P. C. TI Hydrostatic pressure study of single-crystalline UNi(0.5)Sb(2) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB We studied single crystals of the antiferromagnetic compound UNi(0.5)Sb(2) (T(N)approximate to 161 K) by means of measurements of magnetic susceptibility (chi), specific heat (C(p)), and electrical resistivity (rho) at ambient pressure, and resistivity under hydrostatic pressures up to 20 kbars, in the temperature range from 1.9 to 300 K. The thermal coefficient of the electrical resistivity (d rho/dT) changes drastically from positive below T(N) to negative above, reflecting the loss of spin-disorder scattering in the ordered phase. Two small features in the rho versus T data centered near 40 and 85 K correlate well in temperature with features in the magnetic susceptibility and are consistent with other data in the literature. These features are quite hysteretic in temperature, i.e., the difference between the warming and cooling cycles are about 10 and 6 K, respectively. The effect of pressure is to raise T(N) at the approximate rate of 0.76 K/kbar, while progressively suppressing the amplitude of the small features in rho versus T at lower temperatures and increasing the thermal hysteresis. (c) 2008 American Institute of Physics. C1 [Davis, B. K.; Torikachvili, M. S.] San Diego State Univ, Dept Phys, San Diego, CA 92182 USA. [Davis, B. K.] Quantum Design, San Diego, CA 92121 USA. [Mun, E. D.; Frederick, J. C.; Miller, G. J.; Thimmaiah, S.; Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Mun, E. D.; Frederick, J. C.; Bud'ko, S. L.; Canfield, P. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Miller, G. J.; Thimmaiah, S.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Davis, BK (reprint author), San Diego State Univ, Dept Phys, San Diego, CA 92182 USA. EM milton@sciences.sdsu.edu RI Thimmaiah, Srinivasa/H-1049-2012; Canfield, Paul/H-2698-2014 NR 5 TC 4 Z9 4 U1 1 U2 3 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B704 DI 10.1063/1.2828606 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200267 ER PT J AU Ding, Y Arena, DA Dvorak, J Ali, M Kinane, CJ Marrows, CH Hickey, BJ Lewis, LH AF Ding, Y. Arena, D. A. Dvorak, J. Ali, M. Kinane, C. J. Marrows, C. H. Hickey, B. J. Lewis, L. H. TI Bulk and near-surface magnetic properties of FeRh thin films SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID CIRCULAR-DICHROISM; MOMENTS AB Epitaxial Fe(48)Rh(52) thin films of nominal thickness 500 angstrom were grown on MgO (001) substrates via molecular beam epitaxy and capped with 20 angstrom of either Au or MgO. The presence of the anticipated magnetostructural phase transition from antiferromagnetism to ferromagnetism at similar to 350 K was confirmed by superconducting quantum interference device and magneto-optic Kerr effect magnetometry. X-ray magnetic circular dichroism (XMCD) experiments were carried out at the L(2,3) edges; measurements were done in both total electron yield (TEY) mode and indirect transmission mode. At room temperature, the indirect transmission XMCD data show no detectable dichroism, consistent with bulk antiferromagnetic behavior. However, room-temperature TEY data originating from the films' surface reveal an appreciable dichroic signal indicating the presence of ferromagnetism. This near-surface/interfacial magnetism may be modified by choice of capping layer; the MgO-capped sample exhibited a considerably smaller ferromagnetic XMCD signal. The results have potential impact on the application of FeRh thin films as temperature-variable pinning layers in exchanged-biased systems. (C) 2008 American Institute of Physics. C1 [Ding, Y.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Arena, D. A.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Dvorak, J.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. [Ali, M.; Kinane, C. J.; Marrows, C. H.; Hickey, B. J.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England. [Lewis, L. H.] Northeastern Univ, Dept Chem Engn, Boston, MA 02115 USA. RP Ding, Y (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. EM yding@bnl.gov RI Marrows, Christopher/D-7980-2011; Hickey, B J/B-3333-2016; OI Hickey, B J/0000-0001-8289-5618; Marrows, Christopher/0000-0003-4812-6393 NR 11 TC 19 Z9 19 U1 7 U2 32 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B515 DI 10.1063/1.2837247 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200249 ER PT J AU Dumesnil, K Dufour, C Toney, MF AF Dumesnil, K. Dufour, C. Toney, M. F. TI Magnetostructural behavior in (110) europium films SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID MAGNETIC-STRUCTURE; DYSPROSIUM; PHASE AB High resolution and grazing incidence x-ray scattering experiments have been performed to investigate the magnetostructural coupling in a 750 nm thick (110) europium film. Coexisting, distorted structural domains have been observed over approximately 15 K below the magnetic ordering temperature. In agreement with a previous magnetic study, the relative proportions for these domains vary strongly with temperature, which is not the case in bulk europium. Moreover, the temperature dependence of lattice parameters in the different domains is hysteretic. This may be related to a clamping effect of the Eu lattice to the substrate, and may play a key role in the hysteretic magnetic behavior, previously observed for the helices with different propagation vectors. In using the grazing incidence configuration, we have observed that the structural characteristics are nonhomogeneous with the film depth, the dominant structural domain being different in the top and bottom parts of the film. (C) 2008 American Institute of Physics. C1 [Dumesnil, K.; Dufour, C.] Univ Nancy 1, Phys Mat Lab, F-54506 Vandoeuvre Les Nancy, France. [Toney, M. F.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA. RP Dumesnil, K (reprint author), Univ Nancy 1, Phys Mat Lab, BP 239, F-54506 Vandoeuvre Les Nancy, France. EM dumesnil@lpm.u-nancy.fr OI DUMESNIL, Karine/0000-0002-2304-4490 NR 13 TC 1 Z9 1 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B332 DI 10.1063/1.2831361 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200228 ER PT J AU Duque, JGS Adriano, C Lora-Serrano, R Rettori, C Urbano, RR Sarrao, JL Oseroff, SB Pagliuso, PG AF Duque, J. G. S. Adriano, C. Lora-Serrano, R. Rettori, C. Urbano, R. R. Sarrao, J. L. Oseroff, S. B. Pagliuso, P. G. TI Electron spin resonance of Gd(3+) in Gd(m)M(n)In(3m+2n) (M=Rh,Ir; n=0,1; m=1,2) antiferromagnets SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID MAGNETIC PHASE-DIAGRAM; INTERMETALLIC COMPOUNDS; SUPERCONDUCTIVITY; NDIN3; CERHIN5; RH; IR AB We report electron spin resonance experiments of Gd(3+) in the Gd(m)M(n)In(3m+2n) (M=Rh,Ir; n=0,1; m=1,2) intermetallic compounds. For T > T(N)similar to 45 K, all compounds present a single Dysonian resonance and show a Korringa-like temperature dependence of the linewidth, Delta H=a+bT. The residual linewidth a is strongly affected by the transition metal M=Rh or Ir and/or by the layering (m=1 or 2) or change in structure (n=0,1). The residual linewidth is associated with an unresolved crystalline electrical field (CEF) fine structure. Consequently, a systematic evolution of the CEF in the Gd(m)M(n)In(3m+2n) compounds is inferred. A discussion to what extent our results can explain to the CEF effects observed in isostructural R-based compounds will be given. (c) 2008 American Institute of Physics. C1 [Duque, J. G. S.; Adriano, C.; Lora-Serrano, R.; Rettori, C.; Pagliuso, P. G.] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil. [Urbano, R. R.; Sarrao, J. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Oseroff, S. B.] San Diego State Univ, San Diego, CA 92182 USA. RP Pagliuso, PG (reprint author), Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil. EM pagliuso@ifi.unicamp.br RI Rettori, Carlos/C-3966-2012; Pagliuso, Pascoal/C-9169-2012; Urbano, Ricardo/F-5017-2012; Lora Serrano, Raimundo/L-6307-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017 OI Rettori, Carlos/0000-0001-6692-7915; Lora Serrano, Raimundo/0000-0003-3777-2170; NR 25 TC 3 Z9 3 U1 0 U2 6 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B733 DI 10.1063/1.2839592 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200296 ER PT J AU El-Khatib, S Alsmadi, AM Correa, V Andreev, AV Lacerda, A Nasreen, F Nakotte, H AF El-Khatib, S. Alsmadi, A. M. Correa, V. Andreev, A. V. Lacerda, A. Nasreen, F. Nakotte, H. TI Electronic properties of single crystalline UNi(0.39)Rh(0.61)Al SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB U(Ni,Rh)Al alloys crystallize in the hexagonal ZrNiAl structure. Here, we report on measurements on a single crystalline member of this series, namely, UNi(0.39)Rh(0.61)Al. Similar to other members of this series, this compound exhibits highly anisotropic properties with the easy-magnetization direction along the c-axis. We report in the results of electrical resistance, magnetoresistance, and thermal expansion as a function of temperature (2-300 K) and applied magnetic field (0-18 T). The results provide strong evidence for antiferromagnetic ordering at T(N)<= 15 K followed by a ferromagneticlike (ferro-or ferrimagnetic) transition around 7 K (we use the term "ferromagneticlike" because, based on our bulk data, we cannot exclude canted moments with antiferromagnetic components or ferromagnetic order of two different moments). A magnetic B-T phase diagram for UNi(0.39)Rh(0.61)Al is proposed. (c) 2008 American Institute of Physics. C1 [Nasreen, F.; Nakotte, H.] New Mexico State Univ, Dept Phys, Las Cruces, NM 88001 USA. [Lacerda, A.] Los Alamos Natl Lab, NHMFL, Pulse Field Fac, Los Alamos, NM 87545 USA. [Andreev, A. V.] Acad Sci Czech Republic, Inst Phys, Prague 18221, Czech Republic. [Correa, V.] Ctr Atom Bariloche, Lab Bajas Temperaturas, RA-400 San Carlos De Bariloche, Rio Negro, Argentina. [Alsmadi, A. M.] Hashemite Univ, Dept Phys, Zarqa 13115, Jordan. [El-Khatib, S.] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA. RP Nakotte, H (reprint author), New Mexico State Univ, Dept Phys, Las Cruces, NM 88001 USA. EM hnakotte@nmsu.edu RI Andreev, Alexander/B-6057-2011 NR 6 TC 0 Z9 0 U1 0 U2 4 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B714 DI 10.1063/1.2834248 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200277 ER PT J AU Fishman, RS AF Fishman, Randy S. TI Spin waves in CuFeO2 SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID TRIANGULAR LATTICE ANTIFERROMAGNET AB One of the most fascinating frustrated antiferromagnets, CuFeO2, contains stacked hexagonal layers, each with an up arrow up arrow down arrow down arrow magnetic structure. Recent neutron-scattering studies have found that the spin-wave spectrum softens with increasing magnetic field or by substituting Al for Fe. We present a theory of the spin-wave excitations that fits the observed frequencies quite well and explains this softening. C1 Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Fishman, RS (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. EM fishmanrs@ornl.gov RI Fishman, Randy/C-8639-2013 NR 11 TC 21 Z9 21 U1 0 U2 9 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B109 DI 10.1063/1.2834428 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200185 ER PT J AU Herndon, NB Oh, SH Abiade, JT Pai, D Sankar, J Pennycook, SJ Kumar, D AF Herndon, Nichole B. Oh, Sang Ho Abiade, Jeremiah T. Pai, Devdas Sankar, Jag Pennycook, Stephen J. Kumar, Dhananjay TI Effect of spacer layer thickness on magnetic interactions in self-assembled single domain iron nanoparticles SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID PARTICLES; MATRIX; NANOCRYSTALS; TEMPERATURE; BEHAVIOR; DEVICES; MODEL AB The magnetic characteristics of iron nanoparticles embedded in an alumina thin film matrix have been studied as a function of spacer layer thickness. Alumina as well as iron nanoparticles were deposited in a multilayered geometry using sequential pulsed laser deposition. The role of spacer layer thickness was investigated by making layered thin film composites with three different spacer layer thicknesses (6, 12, and 18 nm) with fixed iron particle size of similar to 13 nm. Intralayer magnetic interactions being the same in each sample, the variation in coercivity and saturation magnetization is attributed to thickness dependent interlayer magnetic interactions of three types: exchange, strong dipolar, and weak dipolar. A thin film composite multilayer structure offers a continuously tunable strength of interparticle dipole-dipole interaction and is thus well suited for studies of the influence of interaction on the magnetic properties of small magnetic particle systems. C1 [Herndon, Nichole B.; Oh, Sang Ho; Pai, Devdas; Sankar, Jag; Kumar, Dhananjay] N Carolina Agr & Tech State Univ, Dept Mech & Chem Engn, Ctr Adv Mat & Smart Struct, Greensboro, NC 27411 USA. [Oh, Sang Ho; Pennycook, Stephen J.; Kumar, Dhananjay] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Abiade, Jeremiah T.] Virginia Polytech Inst & State Univ, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA. [Abiade, Jeremiah T.] Virginia Polytech Inst & State Univ, Dept Mech Engn, Blacksburg, VA 24061 USA. RP Kumar, D (reprint author), N Carolina Agr & Tech State Univ, Dept Mech & Chem Engn, Ctr Adv Mat & Smart Struct, Greensboro, NC 27411 USA. EM dkumar@ncat.edu NR 21 TC 4 Z9 4 U1 1 U2 3 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07D515 DI 10.1063/1.2833309 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200443 ER PT J AU Herrero-Albillos, J Paudyal, D Bartolome, F Garcia, LM Pecharsky, VK Gschneidner, KA Young, AT Jaouen, N Rogalev, A AF Herrero-Albillos, J. Paudyal, D. Bartolome, F. Garcia, L. M. Pecharsky, V. K. Gschneidner, K. A., Jr. Young, A. T. Jaouen, N. Rogalev, A. TI Interplay between er and co magnetism in ErCo(2) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID RCO2 LAVES PHASES; K-EDGE; INTERMETALLICS; POLARIZATION; COPPER AB First principles calculations within the tight binding linear muffin tin orbital method confirm the ferrimagnetic coupling between the Er 4f and Co 3d moments in the magnetically ordered phase and the change of sign of the Co 3d magnetization across the magnetostructural transition. Both the experimental x-ray magnetic circular dichroism measurements and theoretical results show that the influence of the rare-earth moment on the Co sp band is so strong that the polarization of the sp band does not follow that of the 3d band, but is determined by the Er sublattice magnetization, both in the magnetically ordered and paramagnetic states. C1 [Herrero-Albillos, J.; Paudyal, D.; Pecharsky, V. K.; Gschneidner, K. A., Jr.] Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA. [Bartolome, F.; Garcia, L. M.] Univ Zaragoza, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain. [Bartolome, F.; Garcia, L. M.] Univ Zaragoza, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain. [Pecharsky, V. K.; Gschneidner, K. A., Jr.] Iowa State Univ Sci & Technol, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Young, A. T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Jaouen, N.] European Synchrotron Radiat Facil, F-38042 Grenoble, France. RP Herrero-Albillos, J (reprint author), Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA. EM julia.herrero@unizar.es RI Herrero-Albillos, Julia/B-9837-2009; Herrero-Albillos, Julia/I-5462-2012; Bartolome, Fernando/K-1700-2014 OI Herrero-Albillos, Julia/0000-0002-0901-8341; Herrero-Albillos, Julia/0000-0002-0901-8341; Bartolome, Fernando/0000-0002-0047-1772 NR 10 TC 8 Z9 8 U1 2 U2 13 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07E146 DI 10.1063/1.2836714 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200558 ER PT J AU Huang, M Lograsso, TA Clark, AE Restorff, JB Wun-Fogle, M AF Huang, Mianliang Lograsso, Thomas A. Clark, A. E. Restorff, J. B. Wun-Fogle, M. TI Effect of interstitial additions on magnetostriction in Fe-Ga alloys SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID MAGNETIC-PROPERTIES; ALPHA-IRON; AL ALLOYS; MAGNETOELASTICITY; LATTICE; BORON AB The additions of trace amounts of small interstitial atoms (carbon, boron, and nitrogen) to Fe-Ga (Galfenol) alloys have a small but beneficial effect on the magnetostriction of Fe-Ga alloys especially at high Ga compositions. The saturated magnetostrictions [(3/2)lambda(100)'s] of both slow cooled and quenched single crystal Fe-Ga-C alloys with Ga contents >18 at. % are about 10%-30% higher than those of the comparable binary Fe-Ga alloys. For boron and nitrogen additions, the magnetostrictions of slow cooled alloys with Ga content >18 at. % were approximately 20% higher than those of the binary Fe-Ga alloys. We assume that these small atoms enter interstitially into the octahedral site as in pure alpha-Fe and inhibit chemical ordering, resulting in increased lambda(100). Thermal analysis of the Fe-Ga binary alloys and Fe-Ga-C ternary alloys indicates that the addition of C into the Fe-Ga system decreases the formation kinetics of D0(3) and extends the disordered region beyond the maximum for slow cooled binary samples. (C) 2008 American Institute of Physics. C1 [Huang, Mianliang; Lograsso, Thomas A.] Iowa State Univ, Inst Phys Res & Technol, Ames, IA 50011 USA. [Clark, A. E.] Clark Associates, Adelphi, MD 20783 USA. [Restorff, J. B.; Wun-Fogle, M.] USN, Ctr Surface Warfare, Bethesda, MD 20817 USA. RP Huang, M (reprint author), Iowa State Univ, Inst Phys Res & Technol, Ames, IA 50011 USA. EM mhuang@ameslab.gov NR 20 TC 8 Z9 9 U1 2 U2 17 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B314 DI 10.1063/1.2829402 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200210 ER PT J AU Isakovic, AF Smith, R Evans-Lutterodt, K Thorne, RE Carr, GL AF Isakovic, A. F. Smith, R. Evans-Lutterodt, K. Thorne, R. E. Carr, G. L. TI Temperature dependent reflectivity and anisotropic magnetization reversal in magnetically doped quasi-two-dimensional charge density wave alloys A(0.01)NbSe(2) (A=Cr,Mn,Fe) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID TRANSITION-METAL DICHALCOGENIDES; 2H-NBSE2; LAYER; SUPERCONDUCTIVITY; SUSCEPTIBILITY; SCATTERING; 2H-TASE2 AB We report on a pronounced magnetic anisotropy of magnetically doped quasi-two-dimensional charge density wave (CDW) NbSe2 at doping concentrations near 1%, and on temperature dependent reflectance, both phenomena above NbSe2 superconducting transition (7.2 K). Unusual spikes in magnetization reversal are noticeable near 20 K, below the CDW transition (33 K), and disappear as temperature nears the superconducting transition. In the far infrared region of the spectrum, we find two sudden jumps in reflectivity, one near the CDW transition, the other near 18 K. This second increase in reflectivity combined with unusual magnetization reversal is potentially indicative of an additional order parameter in the system, possibly a mixed state of the CDW and a spin density wave, or, alternatively, it represents a far infrared signature of dramatically altered quasiparticles scattering near 20 K. C1 [Isakovic, A. F.; Smith, R.; Evans-Lutterodt, K.; Carr, G. L.] Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA. [Isakovic, A. F.; Thorne, R. E.] Cornell Univ, Atom & Solid State Phys Lab, Ithaca, NY 14850 USA. RP Isakovic, AF (reprint author), Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA. EM isakovic@bnl.gov RI Isakovic, Abdel/A-7430-2009 OI Isakovic, Abdel/0000-0003-1779-4209 NR 23 TC 0 Z9 0 U1 2 U2 15 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07D306 DI 10.1063/1.2856509 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200427 ER PT J AU Kinane, CJ Porter, NA Marrows, CH Hickey, BJ Arena, DA Dvorak, J Sirotkin, E Ogrin, FY Charlton, T Langridge, S AF Kinane, C. J. Porter, N. A. Marrows, C. H. Hickey, B. J. Arena, D. A. Dvorak, J. Sirotkin, E. Ogrin, F. Y. Charlton, T. Langridge, S. TI Structural and magnetic roughness in a Co/Ru multilayer patterned into a large scale hexagonal array SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID X-RAY; SCATTERING; NANOSTRUCTURES; FABRICATION; HYSTERESIS; DIFFUSE AB Self-assembled arrays of nanospheres have been used to pattern a Co/Pt multilayer into nanopillars. On top of this has been deposited a Co/Ru multilayer, which is antiferromagnetically coupled. The nanopillars introduce a known structural and magnetic lateral modulation into the multilayer. Soft x-ray magnetic scattering was used to observe the interference patterned from the patterned substrate. This has allowed us to show how the magnetic roughness correlates with the structural roughness and obtain selective magnetometry of the various magnetic elements. (C) 2008 American Institute of Physics. C1 [Kinane, C. J.; Porter, N. A.; Marrows, C. H.; Hickey, B. J.] Univ Leeds, Sch Phys & Astron, EC Stoner Lab, Leeds LS2 9JT, W Yorkshire, England. [Kinane, C. J.; Charlton, T.; Langridge, S.] Rutherford Appleton Lab, ISIS, Didcot OX11 0QX, Oxon, England. [Arena, D. A.] Brookhaven Natl Lab, Natl Synchrontron Light Source, Upton, NY 11973 USA. [Dvorak, J.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. [Sirotkin, E.; Ogrin, F. Y.] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England. RP Marrows, CH (reprint author), Univ Leeds, Sch Phys & Astron, EC Stoner Lab, Leeds LS2 9JT, W Yorkshire, England. EM c.h.marrows@leeds.ac.uk RI Marrows, Christopher/D-7980-2011; Hickey, B J/B-3333-2016; OI Hickey, B J/0000-0001-8289-5618; Marrows, Christopher/0000-0003-4812-6393; Langridge, Sean/0000-0003-1104-0772 NR 19 TC 1 Z9 1 U1 0 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B513 DI 10.1063/1.2829394 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200247 ER PT J AU Krieble, K Devlin, M Lee, SJ Aldini, ST Snyder, JE AF Krieble, K. Devlin, M. Lee, S. J. Aldini, S. T. Snyder, J. E. TI Investigation of Ga substitution in cobalt ferrite (CoGa(x)Fe(2-x)O(4)) using Mossbauer spectroscopy SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB Ga-substituted cobalt ferrite oxides show promise as high magnetostriction, high sensitivity magnetoelastic materials for sensor and actuator applications, but their atomic-level behavior is not yet well understood. In this study, the magnetic environments of the Fe atoms in Ga-substituted cobalt ferrite have been investigated using Mossbauer spectroscopy. A series of five powder samples with CoGa(x)Fe(2-x)O(4) compositions (x=0.0-0.8) was investigated using transmission geometry. Results show two distinct six-line hyperfine patterns, which are identified as Fe in A (tetrahedral) and B (octahedral) spinel sites. Increasing Ga concentration is seen to decrease the hyperfine field strength for both A and B sites, as well as increasing the width of those distributions, consistent with the nonmagnetic nature of Ga(3+) ions. Effects are more pronounced for the B sites than the A sites. Results for Ga substitution show more pronounced effects than for previous studies with Cr(3+) or Mn(3+) substitution: the hyperfine fields decrease and distribution widths increase at greater rates, and the differences between A and B site behavior are more pronounced. Results indicate that at least for the lower Ga concentrations, the Ga(3+) ions substitute predominantly into the A sites, in contrast to Cr(3+) and Mn(3+) which substitute into the B sites. This interpretation is supported by measurements of magnetization at low temperatures. (C) 2008 American Institute of Physics. C1 [Krieble, K.; Devlin, M.] Moravian Coll, Bethlehem, PA 18018 USA. [Lee, S. J.; Snyder, J. E.] Iowa State Univ, Ctr Nondestruct Evaluat, Ames, IA 50011 USA. [Aldini, S. T.] US DOE, Mat & Engn Phys Program, Ames Lab, Ames, IA 50011 USA. [Snyder, J. E.] Cardiff Univ, Wolfson Ctr Magnet, Cardiff CF24 3AA, S Glam, Wales. RP Krieble, K (reprint author), Moravian Coll, Bethlehem, PA 18018 USA. EM krieblek@moravian.edu NR 11 TC 11 Z9 11 U1 0 U2 2 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07E508 DI 10.1063/1.2834721 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200586 ER PT J AU Lee, DR Choi, Y Freeland, JW Keavney, DJ Srajer, G Metlushko, V Ilic, B AF Lee, D. R. Choi, Y. Freeland, J. W. Keavney, D. J. Srajer, G. Metlushko, V. Ilic, B. TI Lateral- and layer-resolved magnetization reversals in a spin-valve array SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID TUNNEL-JUNCTIONS; EXCHANGE SCATTERING; MAGNETORESISTANCE; MULTILAYERS; MEMORY AB Using element-sensitive x-ray resonant magnetic scattering, layer-resolved magnetic hysteresis loops were measured on a periodic square frame nanostrucutre. Taking advantage of the lateral periodicity, we measured hysteresis loops at several x-ray diffraction orders to extract hysteresis loops from different regions of the square frame structures. The layer- and spatially resolved magnetic measurements revealed distinct magnetic reversal mechanisms in different regions due to interplay between the shape anisotropy and interlayer dipolar coupling. The assumed vortex state during the reversal in our analysis was confirmed by photoemission electron microscopy imaging. (c) 2008 American Institute of Physics. C1 [Lee, D. R.] Pohang Univ Sci & Technol, Pohang Accelerator Lab, Pohang 790784, South Korea. [Lee, D. R.] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea. [Choi, Y.; Freeland, J. W.; Keavney, D. J.; Srajer, G.] Argonne Natl Lab, Argonne, IL 60439 USA. [Metlushko, V.] Univ Illinois, Dept Elect & Comp Engn, Chicago, IL 60607 USA. [Ilic, B.] Cornell Univ, Cornell Nanofabricat Facil, Ithaca, NY 14853 USA. RP Lee, DR (reprint author), Pohang Univ Sci & Technol, Pohang Accelerator Lab, Pohang 790784, South Korea. EM drlee@postech.ac.kr RI Ilic, Rob/N-1359-2014 NR 26 TC 2 Z9 2 U1 0 U2 3 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07C513 DI 10.1063/1.2835694 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200341 ER PT J AU Misra, SK Andronenko, SI Engelhard, MH Thurber, A Reddy, KM Punnoose, A AF Misra, S. K. Andronenko, S. I. Engelhard, M. H. Thurber, A. Reddy, K. M. Punnoose, A. TI Role of dopant incorporation on the magnetic properties of Ce(1-x)Ni(x)O(2) nanoparticles: An electron paramagnetic resonance study SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID NIO AB Nickel doping has been found to produce weak room-temperature ferromagnetism (FM) in CeO(2). The saturation magnetization (M(s)) of the chemically synthesized Ce(1-x)Ni(x)O(2) samples showed a maximum for x=0.04, above which the magnetization decreased gradually. For Ce(1-x)Ni(x)O(2) samples with x >= 0.04, an activation process involving slow annealing of the sample to 500 degrees C increased the M(s) by more than two orders of magnitude. However, no such activation effect was observed in samples with x < 0.04. Electron paramagnetic resonance (EPR) technique has been exploited to understand (i) the gradual decrease in the FM and subsequent disappearance of FM with increase in x for x > 0.04, and (ii) the dramatic increase in M(s) in the activated Ce(1-x)Ni(x)O(2) samples with x >= 0.04 and the absence of this behavior in samples with x < 0.04. Detailed analysis by simulation of the EPR data on several as-prepared Ce(1-x)Ni(x)O(2) samples with 0.01 <= x <= 0.10 at 5 and 300 K indicates the presence of several paramagnetic species: (i) two magnetically inequivalent Ni(2+) ions with the ionic spin S=1, (ii) one Ce(3+) ion with spin S=1/2, and (iii) three O(2)(-) defects with S=1/2. The spectra of the samples with x < 0.04 are dominated by a single Ni(2+) EPR line ascribed to dopant ions in substitutional sites, whereas in samples with x >= 0.04, there is an additional EPR line attributed to Ni(2+) ions occupying interstitial sites. In the activated sample with x=0.08, the EPR line due to the interstitial Ni(2+) ions is completely absent, and only the line due to substitutional Ni(2+) ions is present, suggesting that the enhanced FM arises from migration of Ni(2+) ions from interstitial to substitutional sites. (c) 2008 American Institute of Physics. C1 [Misra, S. K.; Andronenko, S. I.; Punnoose, A.] Concordia Univ, Dept Phys, Montreal, PQ H3G 1M8, Canada. [Engelhard, M. H.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. [Thurber, A.; Reddy, K. M.; Punnoose, A.] Boise State Univ, Dept Phys, Boise, ID 83725 USA. RP Misra, SK (reprint author), Concordia Univ, Dept Phys, 1455 Maisonneuve Blvd W, Montreal, PQ H3G 1M8, Canada. EM skmisra@alcor.concordia.ca; apunnoos@boisestate.edu RI Engelhard, Mark/F-1317-2010; OI Andronenko, Sergey/0000-0002-3424-923X; Engelhard, Mark/0000-0002-5543-0812 NR 12 TC 6 Z9 6 U1 0 U2 6 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07D122 DI 10.1063/1.2833291 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200402 ER PT J AU Nelson-Cheeseman, BB Chopdekar, RV Bettinger, JS Arenholz, E Suzuki, Y AF Nelson-Cheeseman, B. B. Chopdekar, R. V. Bettinger, J. S. Arenholz, E. Suzuki, Y. TI Magnetism of NiMn(2)O(4)-Fe(3)O(4) spinel interfaces SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB We investigate the magnetic properties of the isostructural spinel-spinel interface of NiMn(2)O(4)(NMO)-Fe(3)O(4). Although the magnetic transition temperature of the NMO film is preserved, both bulk and interface sensitive measurements demonstrate that the interface exhibits strong interfacial magnetic coupling up to room temperature. While NMO thin films have a ferrimagnetic transition temperature of 60 K, both NiFe(2)O(4) and MnFe(2)O(4) are ferrimagnetic at room temperature. Our experimental results suggest that these magnetic properties arise from a thin interdiffused region of (Fe,Mn,Ni)(3)O(4) at the interface, leading to Mn and Ni magnetic properties similar to those of MnFe(2)O(4) and NiFe(2)O(4). (c) 2008 American Institute of Physics. C1 [Nelson-Cheeseman, B. B.; Chopdekar, R. V.; Bettinger, J. S.; Suzuki, Y.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Chopdekar, R. V.] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA. [Arenholz, E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Nelson-Cheeseman, BB (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. EM bbnelsonchee@berkeley.edu RI Chopdekar, Rajesh/D-2067-2009 OI Chopdekar, Rajesh/0000-0001-6727-6501 NR 9 TC 7 Z9 7 U1 1 U2 6 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B524 DI 10.1063/1.2838320 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200258 ER PT J AU Romanyuk, YE Kranz, LD Leone, SR AF Romanyuk, Yaroslav E. Kranz, Lukas D. Leone, Stephen R. TI Effect of band gap on the red luminescence capability of Pr-doped InGaN layers grown by molecular beam epitaxy SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID PHOTOLUMINESCENCE; SEMICONDUCTORS; EMISSION; EXCITATION; EPILAYERS; ENERGIES; ION; INP; YB AB The effect of In concentration on the red photoluminescence (PL) from trivalent Pr rare-earth (RE) ions in InGaN layers is investigated. A series of Pr-doped In(x)Ga(1-x)N thin layers with 0 <= x <= 0.15 is grown by radio-frequency plasma-assisted molecular beam epitaxy on GaN/sapphire templates. Photoexcitation with a He-Cd laser results in characteristic red emission at 652 nm, corresponding to the (3)P(0)-(3)F(2) transition of Pr(3+). The Pr PL is the highest for samples grown under slightly N-rich conditions, but the "yellow luminescence" caused by Ga vacancies is also present. The intensity of the characteristic Pr PL in In(x)Ga(1-x)N:Pr decreases by one order of magnitude when increasing the In content from x=0 to 0.15, even though the matching of the band gap to the Pr(3+) energy states is better. Low-temperature PL measurements show that the de-excitation energy backtransfer process from excited Pr(3+) ions is more severe for In-richer samples, although the amount of backtransfer cannot be the sole reason for the significant drop of the Pr(3+) emission with the band gap reduction. The dissociation of bound excitons from Pr-related traps as well as the presence of In-related exciton localization centers are also likely to decrease the excitation of the Pr(3+) ions. In view of ongoing efforts to search for efficient RE-doped III-V emitters, the results indicate that the formation/dissociation rate of RE-bound excitons is one of the key factors that determine the RE emission yield. (C) 2008 American Institute of Physics. C1 Univ Calif Berkeley, Dept Phys, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Leone, SR (reprint author), Univ Calif Berkeley, Dept Phys, Dept Chem, Berkeley, CA 94720 USA. EM srl@berkeley.edu NR 28 TC 7 Z9 7 U1 2 U2 9 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 073104 DI 10.1063/1.2903879 PG 6 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200004 ER PT J AU Rong, CB Poudyal, N Chaubey, GS Nandwana, V Liu, Y Wu, YQ Kramer, MJ Kozlov, ME Baughman, RH Liu, JP AF Rong, Chuan-Bing Poudyal, Narayan Chaubey, Girija S. Nandwana, Vikas Liu, Yuzi Wu, Y. Q. Kramer, M. J. Kozlov, M. E. Baughman, R. H. Liu, J. Ping TI High thermal stability of carbon-coated L1(0)-FePt nanoparticles prepared by salt-matrix annealing SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID FEPT NANOPARTICLES; MAGNETS; COERCIVITY; PHASE AB Monodisperse L1(0)-FePt nanoparticles with size ranging from 3 to 8 nm were prepared by the salt-matrix annealing method. It was observed that the annealed particles have high thermal stability-no sintering occurred even when the particles were heated at 1100 degrees C for an hour. This high thermal stability resulted from carbon coating of the particles during salt-matrix annealing as consequence of decomposition of surfactants. (C) 2008 American Institute of Physics. C1 [Rong, Chuan-Bing; Poudyal, Narayan; Chaubey, Girija S.; Nandwana, Vikas; Liu, Yuzi; Liu, J. Ping] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA. [Wu, Y. Q.; Kramer, M. J.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Wu, Y. Q.; Kramer, M. J.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Kozlov, M. E.; Baughman, R. H.] Univ Texas Dallas, NanoTech Inst, Richardson, TX 75083 USA. RP Rong, CB (reprint author), Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA. EM crong@uta.edu; pliu@uta.edu RI Rong, Chuanbing/C-6703-2008; Liu, Yuzi/C-6849-2011 NR 24 TC 18 Z9 19 U1 0 U2 18 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07E131 DI 10.1063/1.2832506 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200543 ER PT J AU Scarpulla, MA Farshchi, R Stone, PR Chopdekar, RV Yu, KM Suzuki, Y Dubon, OD AF Scarpulla, M. A. Farshchi, R. Stone, P. R. Chopdekar, R. V. Yu, K. M. Suzuki, Y. Dubon, O. D. TI Electrical transport and ferromagnetism in Ga1-xMnxAs synthesized by ion implantation and pulsed-laser melting SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID CURIE-TEMPERATURE; MAGNETORESISTANCE; SEMICONDUCTORS; SILICON; GAAS; IMPURITIES; DOPANTS; ALLOYS AB We present a detailed investigation of the magnetic and magnetotransport properties of thin films of ferromagnetic Ga1-xMnxAs synthesized using ion implantation and pulsed-laser melting (II-PLM). The field and temperature-dependent magnetization, magnetic anisotropy, temperature-dependent resistivity, magnetoresistance, and Hall effect of II-PLM Ga1-xMnxAs films have all of the characteristic signatures of the strong p-d interaction of holes and Mn ions observed in the dilute hole-mediated ferromagnetic phase. The ferromagnetic and electrical transport properties of II-PLM films correspond to the peak substitutional Mn concentration meaning that the nonuniform Mn depth distribution is unimportant in determining the film properties. Good quantitative agreement is found with films grown by low temperature molecular beam epitaxy and having the similar substitutional Mn-Ga composition. Additionally, we demonstrate that II-PLM Ga1-xMnxAs films are free from interstitial Mn-I because of the high-temperature processing. At high Mn implantation doses, the kinetics of solute redistribution during solidification alone determine the maximum resulting Mn-Ga concentration. Uniaxial anisotropy between in-plane [(1) over bar 10] and [110] directions is present in II-PLM Ga1-xMnxAs giving evidence for this being an intrinsic property of the carrier-mediated ferromagnetic phase. (C) 2008 American Institute of Physics. C1 [Scarpulla, M. A.; Farshchi, R.; Stone, P. R.; Chopdekar, R. V.; Suzuki, Y.; Dubon, O. D.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Scarpulla, M. A.; Farshchi, R.; Stone, P. R.; Chopdekar, R. V.; Yu, K. M.; Suzuki, Y.; Dubon, O. D.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Chopdekar, R. V.] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA. RP Scarpulla, MA (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. EM mikes@engr.ucsb.edu; oddubon@berkeley.edu RI Scarpulla, Michael/C-7941-2009; Chopdekar, Rajesh/D-2067-2009; Yu, Kin Man/J-1399-2012; OI Chopdekar, Rajesh/0000-0001-6727-6501; Yu, Kin Man/0000-0003-1350-9642; Scarpulla, Michael/0000-0002-6084-6839 NR 51 TC 30 Z9 30 U1 0 U2 5 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 073913 DI 10.1063/1.2890411 PG 6 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200061 ER PT J AU Sengupta, P Batista, CD AF Sengupta, P. Batista, C. D. TI Ground state and thermal transitions in field-induced spin-supersolid phase SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB We use a quantum Monte Carlo method to study the ground state and thermodynamic phase transitions of the spin-supersolid phase in the S=1 Heisenberg model with uniaxial anisotropy. The thermal melting of the supersolid phase shows unqiue signatures in experimentally measurable observables. This Hamiltonian is a particular case of a more general and ubiquitous model that describes the low energy spectrum of a class of isotropic and frustrated spin systems. We also discuss some alternative realizations of spin-supersolid states in real magnets. (C) 2008 American Institute of Physics. C1 [Sengupta, P.; Batista, C. D.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Sengupta, P.] Los Alamos Natl Lab, MST NHMFL, Los Alamos, NM 87545 USA. RP Sengupta, P (reprint author), Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA. EM pinaki@lanl.gov RI Sengupta, Pinaki/B-6999-2011; Batista, Cristian/J-8008-2016 NR 14 TC 3 Z9 3 U1 1 U2 3 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07C709 DI 10.1063/1.2830959 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200358 ER PT J AU Sharma, A Qiang, Y Meyer, D Souza, R Mcconnaughoy, A Muldoon, L Baer, D AF Sharma, Amit Qiang, You Meyer, Daniel Souza, Ryan Mcconnaughoy, Alan Muldoon, Leslie Baer, Donald TI Biocompatible core-shell magnetic nanoparticles for cancer treatment SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB Nontoxic magnetic nanoparticles (MNPs) have expanded treatment delivery options in the medical world. With a size range from 2 to 200 nm, MNPs can be compiled with most of the small cells and tissues in the living body. Monodispersive iron-iron oxide core-shell nanoparticles were prepared by our novel cluster deposition system. This unique method of preparing core-shell MNPs gives the nanoparticles a very high magnetic moment. We tested the nontoxicity and uptake of MNPs coated with/without dextrin by incubating them with rat LX-1 small cell lung cancer cells. Since core iron enhances the heating effect [L. Baker, Q. Zeing, W. Li, and S. Sullivan, J. Appl. Phys. 99, 08H106 (2006)], the rate of oxidation of iron nanoparticles was also tested in de-ionized water at a certain time interval. Both coated and noncoated MNPs were successfully uptaken by the cells, indicating that the nanoparticles were not toxic. The stability of MNPs was verified by x-ray diffraction scan after 0, 24, 48, 96, and 204 h. Due to the high magnetic moment offered by MNPs produced in our laboratory, we predict that even at low applied external alternating field, the desired temperature could be reached in cancer cells in comparison to the commercially available nanoparticles. Moreover our MNPs do not require additional transfection agent, providing a cost effective means of treatment with significantly lower dosage in the body in comparison to commercially available nanoparticles. (c) 2008 American Institute of Physics. C1 [Sharma, Amit; Qiang, You; Meyer, Daniel; Souza, Ryan; Mcconnaughoy, Alan] Univ Idaho, Dept Phys, Moscow, ID 83844 USA. [Muldoon, Leslie] Oregon Hlth & Sci Univ, Portland, OR 97239 USA. [Baer, Donald] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Qiang, Y (reprint author), Univ Idaho, Dept Phys, Moscow, ID 83844 USA. EM youqiang@uidaho.edu NR 9 TC 1 Z9 2 U1 0 U2 8 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07A308 DI 10.1063/1.2831791 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200116 ER PT J AU Shet, S Ahn, KS Yan, Y Deutsch, T Chrustowski, KM Turner, J Al -Jassim, M Ravindra, N AF Shet, Sudhakar Ahn, Kwang-Soon Yan, Yanfa Deutsch, Todd Chrustowski, Kevin M. Turner, John Al -Jassim, Mowafak Ravindra, Nuggehalli TI Carrier concentration tuning of bandgap-reduced p-type ZnO films by codoping of Cu and Ga for improving photoelectrochemical response SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID WATER; PHOTOCATALYSIS; ELECTRODES; TIO2 AB In this study, the synthesis of p-type ZnO films with similar bandgaps but varying carrier concentrations through codoping of Cu and Ga is reported. The ZnO:(Cu,Ga) films are synthesized by rf magnetron sputtering in O(2) gas ambient at room temperature, followed by postdeposition annealing at 500 degrees C in air for 2 h. The bandgap reduction and p-type conductivity are caused by the incorporation of Cu. The tuning of carrier concentration is realized by varying the Ga concentration. The carrier concentration tuning does not significantly change the bandgap and crystallinity. However, it can optimize the carrier concentration to significantly enhance the photoelectrochemical response for bandgap-reduced p-type ZnO thin films. (C) 2008 American Institute of Physics. C1 [Shet, Sudhakar; Ahn, Kwang-Soon; Yan, Yanfa; Deutsch, Todd; Chrustowski, Kevin M.; Turner, John; Al -Jassim, Mowafak] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Shet, Sudhakar; Ravindra, Nuggehalli] New Jersey Inst Technol, Newark, NJ 07102 USA. RP Yan, Y (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM yanfa_yan@nrel.gov OI Deutsch, Todd/0000-0001-6577-1226 NR 20 TC 50 Z9 51 U1 1 U2 36 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 073504 DI 10.1063/1.2888578 PG 5 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200012 ER PT J AU Sort, J Buchanan, KS Pearson, JE Hoffmann, A Menendez, E Salazar-Alvarez, G Baro, MD Miron, M Rodmacq, B Dieny, B Nogues, J AF Sort, J. Buchanan, K. S. Pearson, J. E. Hoffmann, A. Menendez, E. Salazar-Alvarez, G. Baro, M. D. Miron, M. Rodmacq, B. Dieny, B. Nogues, J. TI Tailoring the magnetization reversal of elliptical dots using exchange bias (invited) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID FERROMAGNET-ANTIFERROMAGNET BILAYERS; METASTABLE STATES; MECHANISMS; MICROSTRUCTURES; NANOSTRUCTURES; NANOELEMENTS; DEPENDENCE AB Exchange bias effects have been studied in elliptical dots composed of ferromagnetic Ni80Fe20-antiferromagnetic Ir20Mn80 bilayers. The magnetization reversal mechanisms and magnetic configurations have been investigated by magneto-optic Kerr effect and magnetic force microscopy. Although the obtained bias fields in these dots are relatively small, the magnetization reversal is found to be influenced by the ferromagnetic-antiferromagnetic coupling. Namely, for some off-axis angles of measurement, the magnetization reversal mechanism of the Ni80Fe20-Ir20Mn80 ellipses depends on whether exchange bias is induced along the minor or major axis of the ellipses. Hence, exchange bias is shown to be an effective means for tailoring the magnetization reversal of elliptical dots after sample fabrication. (c) 2008 American Institute of Physics. C1 [Sort, J.] Univ Autonoma Barcelona, ICREA, E-08193 Barcelona, Spain. [Sort, J.; Menendez, E.; Baro, M. D.] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain. [Buchanan, K. S.; Hoffmann, A.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Pearson, J. E.; Hoffmann, A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Miron, M.; Rodmacq, B.; Dieny, B.] CEA, CNRS, URA 2512, SPINTEC, F-38054 Grenoble 9, France. [Salazar-Alvarez, G.; Nogues, J.] Inst Catala Nanotecnol, Bellaterra 08193, Spain. [Nogues, J.] ICREA, Bellaterra 08193, Spain. RP Sort, J (reprint author), Univ Autonoma Barcelona, ICREA, E-08193 Barcelona, Spain. EM jordi.sort@uab.es RI Salazar-Alvarez, German/A-4802-2009; Hoffmann, Axel/A-8152-2009; Baro, Maria Dolors/A-2096-2009; Nogues, Josep/D-7791-2012; Sort, Jordi/F-6582-2014; Menendez, Enric /E-2469-2016; OI Salazar-Alvarez, German/0000-0002-0671-435X; Hoffmann, Axel/0000-0002-1808-2767; Baro, Maria Dolors/0000-0002-8636-1063; Nogues, Josep/0000-0003-4616-1371; Sort, Jordi/0000-0003-1213-3639; Menendez, Enric /0000-0003-3809-2863; Buchanan, Kristen/0000-0003-0879-0038 NR 42 TC 12 Z9 12 U1 1 U2 10 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07C109 DI 10.1063/1.2840467 PG 5 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200323 ER PT J AU Tseng, YC Haskel, D Lang, JC Mudryk, Y Pecharsky, VK Gschneidner, KA AF Tseng, Y. C. Haskel, D. Lang, J. C. Mudryk, Ya. Pecharsky, V. K. Gschneidner, K. A., Jr. TI Pressure tuning of the magnetic transition in Gd(5)(Si(0.375)Ge(0.625))(4) giant magnetocaloric effect material SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID ABSORPTION FINE-STRUCTURE; GD-5(SI2GE2) AB The effect of hydrostatic pressure on the ferromagnetic ordering transition of the monoclinic Gd(5)(Si(0.375)Ge(0.625))(4) giant magnetocaloric effect compound was investigated using x-ray magnetic circular dichroism measurements in a diamond anvil cell. The Curie temperature T(C) increases linearly with applied pressure up to similar to 7.2 GPa, at which point a discontinuity in dT(C)/dP occurs. This discontinuity, which appears when T(C) reaches similar to 277 K, is also observed when the unit cell volume is reduced by Si doping and is associated with the volume-driven monoclinic (M) to orthorhombic [O(I)] structural transition. C1 [Tseng, Y. C.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60201 USA. [Tseng, Y. C.; Haskel, D.; Lang, J. C.] Argonne Natl Lab, Adv Photon Source, Magnet Mat Grp, Argonne, IL 60439 USA. [Mudryk, Ya.; Pecharsky, V. K.; Gschneidner, K. A., Jr.] Iowa State Univ, Ames Lab, Mat & Engn Phys Program, Ames, IA 50011 USA. [Pecharsky, V. K.; Gschneidner, K. A., Jr.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. RP Tseng, YC (reprint author), Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60201 USA. EM joseph-tseng@northwestern.edu NR 19 TC 6 Z9 6 U1 0 U2 6 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B301 DI 10.1063/1.2828514 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200197 ER PT J AU Vannette, MD Bud'ko, SL Canfield, PC Prozorov, R AF Vannette, Matthew D. Bud'ko, Sergey L. Canfield, Paul C. Prozorov, Ruslan TI Distinguishing local moment versus itinerant ferromagnets: Dynamic magnetic susceptibility SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID TUNNEL-DIODE OSCILLATOR; SM; ND AB Radio-frequency measurements of dynamic magnetic susceptibility of various ferromagnets show striking differences between local-moment ferromagnetism (LFM) and weak itinerant ferromagnetism (IFM) ferromagnetic systems. LFMs show a very sharp peak in susceptibility in the vicinity of the Curie temperature T(C) that rapidly decreases in amplitude and shifts to higher temperature with the application of a weak dc bias field. In stark contrast, the generally accepted IFM systems show no peak, but rather a broad maximum well below T(C). The temperature of this maximum shifts to lower values and the amplitude is suppressed with an applied dc field. (c) 2008 American Institute of Physics. C1 [Vannette, Matthew D.; Bud'ko, Sergey L.; Canfield, Paul C.; Prozorov, Ruslan] Iowa State Univ, Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA. RP Vannette, MD (reprint author), Iowa State Univ, Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA. EM vannette@iastate.edu RI Prozorov, Ruslan/A-2487-2008; Canfield, Paul/H-2698-2014 OI Prozorov, Ruslan/0000-0002-8088-6096; NR 14 TC 5 Z9 5 U1 0 U2 4 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07D302 DI 10.1063/1.2832349 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200423 ER PT J AU Vokoun, D Beleggia, M Rahman, T Hou, HC Lai, CH AF Vokoun, D. Beleggia, M. Rahman, T. Hou, H. C. Lai, C. H. TI The two-spin model with dipolar interactions for the exchange coupled composite media SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc AB We study exchange coupled composite (ECC) media where both the hard and soft coupled layers possess perpendicular anisotropy or one of the layers is superparamagnetic. Our model is used to demonstrate the effect of the dipolar interactions on the coercive field. A series of ECC samples with various thicknesses of Ru spacer is manufactured and analyzed. The structure of the samples prepared is CoPtCr-SiO(2)/Ru/CoPtCr-SiO(2), with the composition varied around that of (CoPt(17)Cr(10))(90)-(SiO(2))(10). The acquired experimental data are used to illustrate the significance of magnetostatic interactions between the two coupled magnetic layers. (C) 2008 American Institute of Physics. C1 [Vokoun, D.; Rahman, T.; Hou, H. C.; Lai, C. H.] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan. [Beleggia, M.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Vokoun, D.] Acad Sci Czech Republic, Inst Phys, Prague 11720, Czech Republic. RP Lai, CH (reprint author), Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan. EM vokoun@fzu.cz; chlai@mx.nthu.edu.tw RI Vokoun, David/G-3896-2014; OI Vokoun, David/0000-0002-9381-8754; Beleggia, Marco/0000-0002-2888-1888 NR 7 TC 5 Z9 5 U1 0 U2 9 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07F520 DI 10.1063/1.2833841 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200750 ER PT J AU Watson, SM Santos, TS Borchers, JA Moodera, JS AF Watson, S. M. Santos, T. S. Borchers, J. A. Moodera, J. S. TI Relationship between tunnel magnetoresistance and magnetic layer structure in EuO-based tunnel junctions investigated using polarized neutron reflectivity SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID FILMS AB This paper presents a study of the depth-dependent magnetic structure of a EuO magnetic tunnel junction having a Gd electrode, Si/Cu/EuO/Gd/Al. Related samples that are patterned exhibit large tunneling magnetoresistance as high as 280%. Though Gd has a much higher coercivity than EuO in bulk, magnetometry reveals no "steps" in the hysteresis loop as expected for a true antiparallel alignment of the EuO and Gd layer magnetizations. Using polarized neutron reflectometry to measure the structural and field-dependent magnetic depth profile at 5 K, we determine that the Gd and EuO layers have similar coercivities and that the Gd layer exhibits an anomalously small magnetization at all fields. Polarized neutron reflectometry results also suggest that the chemical density of the Gd layer is not that of bulk Gd. The differences of the structural and magnetic behavior of the Gd layer relative to bulk may be the key in optimizing the tunnel magnetoresistance in these samples. C1 [Watson, S. M.; Borchers, J. A.] NIST, NCNR, Gaithersburg, MD 20899 USA. [Santos, T. S.] Argonne Natl Lab, Argonne, IL 60439 USA. [Santos, T. S.; Moodera, J. S.] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA. RP Watson, SM (reprint author), NIST, NCNR, Gaithersburg, MD 20899 USA. EM shannon.watson@nist.gov NR 9 TC 4 Z9 4 U1 0 U2 2 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07A719 DI 10.1063/1.2837873 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200152 ER PT J AU Wu, D Xing, Q McCallum, RW Lograsso, TA AF Wu, D. Xing, Q. McCallum, R. W. Lograsso, T. A. TI Magnetostriction of iron-germanium single crystals SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID STRUCTURALLY HETEROGENEOUS MODEL; SIMILAR MAGNETIC-ALLOYS; FE-GA ALLOYS; EXTRINSIC MAGNETOSTRICTION; AL ALLOYS; MAGNETOELASTICITY AB The addition of nonmagnetic Ga into body-centered cubic Fe enhances the magnetostriction constant lambda(100) over tenfold. Literature reports for substitution of Ge at low concentrations suggest that the addition of Ge also enhances the magnetostriction. In this work, the magnetostriction and microstructure of Fe-Ge were investigated to correlate magnetostriction with microstructure. The magnetostriction of Fe(100-x)Ge(x) single crystals with x between 0.05 and 0.18 varies with Ge concentration and correlates with phase changes. The value of (3/2)lambda(100) increases with Ge additions in the A2 single phase region (up to x similar to 10), reaching a maximum of 94 ppm at the solubility limit of the disordered A2 phase. Further increases in Ge in the A2+D0(3) two-phase region (12 < x < 16) result in a decrease in magnetostriction which changes from positive to negative. For Ge contents with x>16, magnetostriction remains negative with an absolute value of strain of 129 ppm at 18 at. % Ge. This behavior is similar to that observed for Fe-Si alloys. (C) 2008 American Institute of Physics. C1 [Wu, D.; Xing, Q.; McCallum, R. W.; Lograsso, T. A.] Iowa State Univ, Ames Lab, Mat & Engn Phys Program, Ames, IA 50011 USA. RP Wu, D (reprint author), Iowa State Univ, Ames Lab, Mat & Engn Phys Program, Ames, IA 50011 USA. EM wudm@ameslab.gov NR 13 TC 16 Z9 16 U1 0 U2 9 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07B307 DI 10.1063/1.2829393 PG 3 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200203 ER PT J AU Yang, SH Sell, BC Fadley, CS AF Yang, S. -H. Sell, B. C. Fadley, C. S. TI Probing multilayer spintronic structures with photoelectron and x-ray emission spectroscopies excited by x-ray standing waves (invited) SO JOURNAL OF APPLIED PHYSICS LA English DT Article; Proceedings Paper CT 52nd Annual Conference on Magnetism and Magnetic Materials CY NOV 05-09, 2007 CL Tampa, FL SP Phys Conf Inc, IEEE, Magnet Soc ID RESOLVED PHOTOEMISSION-SPECTROSCOPY; DIFFRACTION AB We discuss a newly developed x-ray standing-wave/wedge (swedge) method for probing the composition, magnetization, and electronic densities of states in buried interfaces and layers in spintronic nanostructures. In work based on photoemission, this method has permitted determining concentration and magnetization profiles through giant magnetoresistive (GMR) and magnetic tunnel junctions structures, as well as individual layer densities of states near the Fermi level in a tunnel junction. Using x-ray emission and resonant inelastic x-ray scattering for detection has permitted probing deeper layers and interfaces in a GMR structure. Various future applications of this method in nanomagnetism are suggested, including using more energetic hard x-ray standing waves so as to probe more deeply below a surface and standing-wave excitation in spectromicroscopy to provide depth sensitivity. (c) 2008 American Institute of Physics. C1 [Yang, S. -H.] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA. [Sell, B. C.; Fadley, C. S.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Sell, B. C.; Fadley, C. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Yang, SH (reprint author), IBM Corp, Almaden Res Ctr, 650 Harry Rd, San Jose, CA 95120 USA. EM fadley@physics.ucdavis.edu RI MSD, Nanomag/F-6438-2012 NR 13 TC 18 Z9 18 U1 1 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD APR 1 PY 2008 VL 103 IS 7 AR 07C519 DI 10.1063/1.2837481 PG 6 WC Physics, Applied SC Physics GA 289GO UT WOS:000255043200347 ER PT J AU Altaweel, M AF Altaweel, Mark TI Investigating agricultural sustainability and strategies in northern Mesopotamia: results produced using a socio-ecological modeling approach SO JOURNAL OF ARCHAEOLOGICAL SCIENCE LA English DT Article DE modeling; simulation; landscape; socio-ecological; agriculture; Mesopotamia ID LAND-USE AB Some of the most politically and culturally significant cities in first millennium BC northern Mesopotamia were located in agriculturally marginal landscapes. In order to sustain these settlements, variant cultivation techniques were practiced by local populations. Understanding the dynamics and implications of crop management practices requires that socio-ecological variables be addressed over recurrent crop cycles. This paper employs a coupled socio-ecological modeling approach that enables interactions between a quantitative environmental model and an agent-based social model by using the ENKIMDU simulation tool. The reconstructed landscape near the ancient city of Assur is used as the example setting to test the effectiveness of simulated cultivation strategies. These methods include sole dependence on biennial fallow and rainfall, gravity flow irrigation, application of manure, and the integration of all these approaches. Results obtained within ENKIMDU attempt to delineate agricultural constraints and potential benefits of the specific anthropogenic processes and strategies addressed. (C) 2007 Published by Elsevier Ltd. C1 Argonne Natl Lab, Decis & Informat Sci, Argonne, IL 60439 USA. RP Altaweel, M (reprint author), Argonne Natl Lab, Decis & Informat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM maltaweel@anl.gov NR 40 TC 19 Z9 20 U1 1 U2 8 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0305-4403 J9 J ARCHAEOL SCI JI J. Archaeol. Sci. PD APR PY 2008 VL 35 IS 4 BP 821 EP 835 DI 10.1016/j.jas.2007.06.012 PG 15 WC Anthropology; Archaeology; Geosciences, Multidisciplinary SC Anthropology; Archaeology; Geology GA 271YH UT WOS:000253824100001 ER PT J AU Whicker, JJ Pinder, JE Breshears, DD AF Whicker, J. J. Pinder, J. E., III Breshears, D. D. TI Thinning semiarid forests amplifies wind erosion comparably to wildfire: Implications for restoration and soil stability SO JOURNAL OF ARID ENVIRONMENTS LA English DT Article DE environmental disturbance; forest fire; forest thinning; restoration; soil stability; wind erosion ID SOUTHWESTERN PONDEROSA PINE; MASS FLUX; MU M; DUST; ECOSYSTEMS; PRODUCTIVITY; PERSPECTIVE; DISTURBANCE; VEGETATION; PARTICLES AB Semiarid forests across the western USA and elsewhere are being thinned to reduce risk from fire, restore previous ecological conditions, and/or salvage trees from recently burned areas. Prescriptions and monitoring for thinning generally focus on biotic characteristics of vegetation, like tree density, rather than abiotic characteristics of soils and their loss, which are usually only considered in association with water erosion. Recent studies indicate that sediment transport by wind in forests is substantial and can exceed water transport, yet forest wind erosion responses to tree thinning and/or burning are unknown. We measured wind-driven horizontal dust flux, a metric related to wind erosion, with respect to presence/absence of fire and/or thinning in a ponderosa pine (Pinus ponderosa) forest in northern New Mexico, USA. Passive dust collectors at several sampling heights documented elevated dust fluxes at sites that were burned and/or thinned. Unexpectedly, thinned sites had erosion rates as large as burned sites, documenting significant restoration impacts on soil stability. Thinning and fire impacts on dust flux were correlated with remaining tree or ground cover. The results highlight that dust fluxes provide a readily measurable metric of soil stability that should be integrated into prescription and monitoring plans for forest restoration and thinning. (c) 2007 Elsevier Ltd. All rights reserved. C1 [Whicker, J. J.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Pinder, J. E., III] Colorado State Univ, Dept Environm & Radiol Hlth Sci, Ft Collins, CO 80523 USA. [Breshears, D. D.] Univ Arizona, Sch Nat Resources, Inst Study Planet Earth, Tucson, AZ 85721 USA. [Breshears, D. D.] Univ Arizona, Dept Ecol & Evolut Biol, Tucson, AZ 85721 USA. RP Whicker, JJ (reprint author), Los Alamos Natl Lab, Mail Stop G761, Los Alamos, NM 87544 USA. EM jjwhicker@lanl.gov; J.Pinder@tcu.edu; daveb@email.arizona.edu RI Breshears, David/B-9318-2009 OI Breshears, David/0000-0001-6601-0058 NR 74 TC 14 Z9 15 U1 0 U2 8 PU ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0140-1963 J9 J ARID ENVIRON JI J. Arid. Environ. PD APR PY 2008 VL 72 IS 4 BP 494 EP 508 DI 10.1016/j.jaridenv.2007.08.006 PG 15 WC Ecology; Environmental Sciences SC Environmental Sciences & Ecology GA 281RS UT WOS:000254517200020 ER PT J AU Marchand, R Mace, GG Ackerman, T Stephens, G AF Marchand, Roger Mace, Gerald G. Ackerman, Thomas Stephens, Graeme TI Hydrometeor detection using Cloudsat - An earth-orbiting 94-GHz cloud radar SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY LA English DT Article ID LIDAR AB In late April 2006, NASA launched Cloudsat, an earth-observing satellite that uses a near-nadir-pointing millimeter-wavelength radar to probe the vertical structure of clouds and precipitation. The first step in using Cloudsat measurements is to distinguish clouds and other hydrometeors from radar noise. In this article the operational Cloudsat hydrometeor detection algorithm is described, difficulties due to surface clutter are discussed, and several examples from the early mission are shown. A preliminary comparison of the Cloudsat hydrometeor detection algorithm with lidar-based results from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite is also provided. C1 [Marchand, Roger; Ackerman, Thomas] Univ Washington, Joint Inst Study Atmosphere & Oceans, Seattle, WA 98195 USA. [Mace, Gerald G.] Univ Utah, Dept Meteorol, Salt Lake City, UT 84112 USA. [Stephens, Graeme] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA. RP Marchand, R (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA. EM rojmarch@u.washington.edu NR 6 TC 188 Z9 195 U1 8 U2 31 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0739-0572 J9 J ATMOS OCEAN TECH JI J. Atmos. Ocean. Technol. PD APR PY 2008 VL 25 IS 4 BP 519 EP 533 DI 10.1175/2007JTECHA1006.1 PG 15 WC Engineering, Ocean; Meteorology & Atmospheric Sciences SC Engineering; Meteorology & Atmospheric Sciences GA 291CF UT WOS:000255169200002 ER PT J AU Shupe, MD Kollias, P Poellot, M Eloranta, E AF Shupe, Matthew D. Kollias, Pavlos Poellot, Michael Eloranta, Edwin TI On deriving vertical air motions from cloud radar Doppler spectra SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY LA English DT Article ID LIQUID WATER PATH; BOUNDARY-LAYER; MICROWAVE RADIOMETER; TURBULENCE STRUCTURE; DRIZZLE PARAMETERS; STRATOCUMULUS; AIRCRAFT; SHEBA; LIDAR AB A method for deriving vertical air motions from cloud radar Doppler spectrum measurements is introduced. The method is applicable to cloud volumes containing small particles, in this case liquid droplets, which are assumed to trace vertical air motions because of their limited size. The presence of liquid droplets is confirmed using multiple ground-based remote sensors. Corrections for Doppler spectrum broadening due to turbulence, wind shear, and radar beamwidth are applied. As a result of the turbulence broadening correction, the turbulent dissipation rate can also be estimated. This retrieval is demonstrated using measurements from the Department of Energy (DOE) Atmospheric Radiation Measurement Program's (ARM) site in Barrow, Alaska, during the Mixed-Phase Arctic Cloud Experiment (MPACE) of autumn 2004. Comparisons of the retrievals with measurements by research aircraft near Barrow indicate that, on the whole, the retrievals perform well. A small bias in vertical velocity between the retrievals and aircraft measurements is found, based on a statistical comparison of four cases comprising nearly 6 h of data. Turbulent dissipation rate comparisons suggest that the radar-retrieved vertical velocity might be slightly underestimated because of an underestimate of the turbulence broadening correction. However, large uncertainties in aircraft vertical velocity measurements likely impact the comparison. C1 [Shupe, Matthew D.] Univ Colorado, NOAA, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA. [Shupe, Matthew D.] NOAA, Earth Syst Res Lab, Boulder, CO USA. [Kollias, Pavlos] Brookhaven Natl Lab, Upton, NY 11973 USA. [Poellot, Michael] Univ N Dakota, Grand Forks, ND 58201 USA. [Eloranta, Edwin] Univ Wisconsin, Madison, WI USA. RP Shupe, MD (reprint author), R PSD3,325 Broadway, Boulder, CO 80305 USA. EM matthew.shupe@noaa.gov RI Shupe, Matthew/F-8754-2011 OI Shupe, Matthew/0000-0002-0973-9982 NR 29 TC 27 Z9 31 U1 2 U2 9 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0739-0572 J9 J ATMOS OCEAN TECH JI J. Atmos. Ocean. Technol. PD APR PY 2008 VL 25 IS 4 BP 547 EP 557 DI 10.1175/2007JTECHA1007.1 PG 11 WC Engineering, Ocean; Meteorology & Atmospheric Sciences SC Engineering; Meteorology & Atmospheric Sciences GA 291CF UT WOS:000255169200004 ER PT J AU Anderson, I Rodriguez, J Susanti, D Porat, I Reich, C Ulrich, LE Elkins, JG Mavromatis, K Lykidis, A Kim, E Thompson, LS Nolan, M Land, M Copeland, A Lapidus, A Lucas, S Detter, C Zhulin, IB Olsen, GJ Whitman, W Mukhopadhyay, B Bristow, J Kyrpides, N AF Anderson, Iain Rodriguez, Jason Susanti, Dwi Porat, Iris Reich, Claudia Ulrich, Luke E. Elkins, James G. Mavromatis, Kostas Lykidis, Athanasios Kim, Edwin Thompson, Linda S. Nolan, Matt Land, Miriam Copeland, Alex Lapidus, Alla Lucas, Susan Detter, Chris Zhulin, Igor B. Olsen, Gary J. Whitman, William Mukhopadhyay, Biswarup Bristow, James Kyrpides, Nikos TI Genome sequence of Thermofilum pendens reveals an exceptional loss of biosynthetic pathways without genome reduction SO JOURNAL OF BACTERIOLOGY LA English DT Article ID ARCHAEON PYROCOCCUS-FURIOSUS; HYPERTHERMOPHILIC ARCHAEON; THERMOTOGA-MARITIMA; FERREDOXIN OXIDOREDUCTASE; ENDOSYMBIOTIC BACTERIA; SIGNAL-TRANSDUCTION; ESCHERICHIA-COLI; ELEMENTAL SULFUR; METABOLISM; IDENTIFICATION AB We report the complete genome of Thermofilum pendens, a deeply branching, hyperthermophilic member of the order Thermoproteales in the archaeal kingdom Crenarchaeota. T. pendens is a sulfur-dependent, anaerobic heterotroph isolated from a solfatara in Iceland. It is an extracellular commensal, requiring an extract of Thermoproteus tenax for growth, and the genome sequence reveals that biosynthetic pathways for purines, most amino acids, and most cofactors are absent. In fact, T. pendens has fewer biosynthetic enzymes than obligate intracellular parasites, although it does not display other features that are common among obligate parasites and thus does not appear to be in the process of becoming a parasite. It appears that T. pendens has adapted to life in an environment rich in nutrients. T. pendens was known previously to utilize peptides as an energy source, but the genome revealed a substantial ability to grow on carbohydrates. T. pendens is the first crenarchaeote and only the second archaeon found to have a transporter of the phosphotransferase system. In addition to fermentation, T. pendens may obtain energy from sulfur reduction with hydrogen and formate as electron donors. It may also be capable of sulfur-independent growth on formate with formate hydrogen lyase. Additional novel features are the presence of a monomethylamine:corrinoid methyltransferase, the first time that this enzyme has been found outside the Methanosarcinales, and the presence of a presenilin-related protein. The predicted highly expressed proteins do not include proteins encoded by housekeeping genes and instead include ABC transporters for carbohydrates and peptides and clustered regularly interspaced short palindromic repeat-associated proteins. C1 [Anderson, Iain; Mavromatis, Kostas; Lykidis, Athanasios; Kim, Edwin; Thompson, Linda S.; Nolan, Matt; Copeland, Alex; Lapidus, Alla; Lucas, Susan; Detter, Chris; Bristow, James; Kyrpides, Nikos] Joint Genome Inst, Walnut Creek, CA 94598 USA. [Rodriguez, Jason; Susanti, Dwi; Mukhopadhyay, Biswarup] Virginia Polytech Inst & State Univ, Virginia Bioinformat Inst, Blacksburg, VA 24061 USA. [Rodriguez, Jason; Mukhopadhyay, Biswarup] Virginia Polytech Inst & State Univ, Dept Biochem, Blacksburg, VA 24061 USA. [Mukhopadhyay, Biswarup] Virginia Polytech Inst & State Univ, Dept Biol Sci & Genet, Blacksburg, VA 24061 USA. [Susanti, Dwi; Mukhopadhyay, Biswarup] Virginia Polytech Inst & State Univ, Bioinformat & Computat Biol Grad Program, Blacksburg, VA 24061 USA. [Porat, Iris; Whitman, William] Univ Georgia, Dept Microbiol, Athens, GA 30602 USA. [Reich, Claudia; Olsen, Gary J.] Univ Illinois, Dept Microbiol, Urbana, IL 61801 USA. [Ulrich, Luke E.; Zhulin, Igor B.] Univ Tennessee, Oak Ridge Natl Lab, Joint Inst Computat Sci, Oak Ridge, TN 37831 USA. [Elkins, James G.; Land, Miriam] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Thompson, Linda S.; Detter, Chris] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Anderson, I (reprint author), Joint Genome Inst, 2800 Mitchell Dr, Walnut Creek, CA 94598 USA. EM IJAnderson@lbl.gov RI Land, Miriam/A-6200-2011; Zhulin, Igor/A-2308-2012; Rodriguez Herrera, Juan Jose/I-3210-2015; Elkins, James/A-6199-2011; Kyrpides, Nikos/A-6305-2014; Lapidus, Alla/I-4348-2013 OI Land, Miriam/0000-0001-7102-0031; Zhulin, Igor/0000-0002-6708-5323; Elkins, James/0000-0002-8052-5688; Kyrpides, Nikos/0000-0002-6131-0462; Lapidus, Alla/0000-0003-0427-8731 FU NIGMS NIH HHS [GM72285, R01 GM072285] NR 64 TC 34 Z9 128 U1 3 U2 14 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0021-9193 J9 J BACTERIOL JI J. Bacteriol. PD APR PY 2008 VL 190 IS 8 BP 2957 EP 2965 DI 10.1128/JB.01949-07 PG 9 WC Microbiology SC Microbiology GA 285JN UT WOS:000254773200033 PM 18263724 ER PT J AU Miranda, P Pajares, A Saiz, E Tomsia, AP Guiberteau, F AF Miranda, Pedro Pajares, Antonia Saiz, Eduardo Tomsia, Antoni P. Guiberteau, Fernando TI Mechanical properties of calcium phosphate scaffolds fabricated by robocasting SO JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A LA English DT Article DE robocasting; hydroxyapatite; beta-tricalcium phosphate; scaffolds; strength ID BETA-TRICALCIUM PHOSPHATE; POROUS HYDROXYAPATITE SCAFFOLDS; BONE-GRAFT SUBSTITUTES; IN-VITRO; COMPRESSIVE STRENGTH; FRACTURE STRENGTH; SYNTHETIC BONE; CERAMICS; TISSUE; POROSITY AB The mechanical behavior under compressive stresses of beta-tricalcium phosphate (beta-TCP) and hydroxyapatite (HA) scaffolds fabricated by direct-write assembly (robocasting) technique is analyzed. Concentrated colloidal inks prepared from beta-TCP and HA commercial powders were used to fabricate porous structures consisting of a 3D tetragonal mesh of interpenetrating ceramic rods. The compressive strength and elastic modulus of these model scaffolds were determined by uniaxial testing to compare the relative performance of the selected materials. The effect of a 3-week immersion in simulated body fluid (SBF) on the strength of the scaffolds was also analyzed. The results are compared with those reported in the literature for calcium phosphate scaffolds and human bone. The robocast calcium phosphate scaffolds were found to exhibit excellent mechanical performances in terms of strength, especially the HA structures after SBF immersion, indicating a great potential of this type of scaffolds for use in load-bearing bone tissue engineering applications. (c) 2007 Wiley Periodicals, Inc. C1 [Miranda, Pedro; Guiberteau, Fernando] Univ Extremadura, Dept Elect & Ingn Electromecan, E-06071 Badajoz, Spain. [Pajares, Antonia] Univ Extremadura, Dept Fis, E-06071 Badajoz, Spain. [Saiz, Eduardo; Tomsia, Antoni P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Miranda, P (reprint author), Univ Extremadura, Dept Elect & Ingn Electromecan, Avda Elvas S-N, E-06071 Badajoz, Spain. EM pmiranda@unex.es RI Miranda, Pedro/C-4465-2008; Pajares, Antonia/I-3881-2015 OI Miranda, Pedro/0000-0003-4348-110X; Pajares, Antonia/0000-0002-1086-7586 FU NIDCR NIH HHS [5R01 DE015633] NR 59 TC 101 Z9 103 U1 3 U2 39 PU WILEY-LISS PI HOBOKEN PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 1549-3296 J9 J BIOMED MATER RES A JI J. Biomed. Mater. Res. Part A PD APR PY 2008 VL 85A IS 1 BP 218 EP 227 DI 10.1002/jbm.a.31587 PG 10 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 270UF UT WOS:000253745000022 PM 17688280 ER PT J AU Song, SJ Moon, JH Ryu, HW Lee, TH Dorris, SE Balachandran, U AF Song, S. -J. Moon, J. -H. Ryu, H. W. Lee, T. -H. Dorris, S. E. Balachandran, U. TI Non-galvanic hydrogen production by water splitting using cermet membranes SO JOURNAL OF CERAMIC PROCESSING RESEARCH LA English DT Article DE water splitting; cermet membranes ID DISSOCIATION AB The mixed ion-electron conducting Cu-cermet membranes are suggested for hydrogen production by wwater splitting at moderate temperature (873-1173 degrees C) because of their good de-catalyzing carbon-formation reactions. The logarithmic hydrogen production rates with pH(2)O in the oxidizing gas and with pH(2) in the reducing gas were investigated. Cu-based cermet membranes should be further studied to enhance their relatively poor thermal stability, with severe agglomerates of the Cu phase observed following operation at 1173K. C1 [Song, S. -J.; Moon, J. -H.; Ryu, H. W.] Chonnam Natl Univ, Sch Mat Sci & Engn, Kwangju 500757, South Korea. [Lee, T. -H.; Dorris, S. E.; Balachandran, U.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA. RP Song, SJ (reprint author), Chonnam Natl Univ, Sch Mat Sci & Engn, Kwangju 500757, South Korea. EM song@chonnam.ac.kr NR 4 TC 12 Z9 12 U1 2 U2 7 PU KOREAN ASSOC CRYSTAL GROWTH, INC PI SEOUL PA SUNGDONG POST OFFICE, P O BOX 27, SEOUL 133-600, SOUTH KOREA SN 1229-9162 J9 J CERAM PROCESS RES JI J. Ceram. Process. Res. PD APR PY 2008 VL 9 IS 2 BP 123 EP 125 PG 3 WC Materials Science, Ceramics SC Materials Science GA 318GY UT WOS:000257080800007 ER PT J AU Bala, G Rood, RB Mirin, A McClean, J Achutarao, K Bader, D Gleckler, P Neale, R Rasch, P AF Bala, G. Rood, R. B. Mirin, A. McClean, J. Achutarao, Krishna Bader, D. Gleckler, P. Neale, R. Rasch, P. TI Evaluation of a CCSM3 simulation with a finite volume dynamical core for the atmosphere at 1 degrees latitude x 1.25 degrees longitude resolution SO JOURNAL OF CLIMATE LA English DT Article ID CLIMATE SYSTEM MODEL; RADIATION BUDGET EXPERIMENT; ICE THICKNESS DISTRIBUTION; ARCTIC SEA-ICE; GLOBAL PRECIPITATION; AIR-TEMPERATURE; TRANSPORT; SURFACE; VERSION; OCEAN AB A simulation of the present-day climate by the Community Climate System Model version 3 (CCSM3) that uses a Finite Volume (FV) numerical method for solving the equations governing the atmospheric dynamics is presented. The simulation is compared to observations and to the well-documented simulation by the standard CCSM3, which uses the Eulerian spectral method for the atmospheric dynamics. The atmospheric component in the simulation herein uses a 1 degrees latitude X 1.25 degrees longitude grid, which is a slightly finer resolution than the T85-grid used in the spectral transform. As in the T85 simulation, the ocean and ice models use a nominal 1-degree grid. Although the physical parameterizations are the same and the resolution is comparable to the standard model, substantial testing and slight retuning were required to obtain an acceptable control simulation. There are significant improvements in the simulation of the surface wind stress and sea surface temperature. Improvements are also seen in the simulations of the total variance in the tropical Pacific, the spatial pattern of ice thickness distribution in the Arctic, and the vertically integrated ocean circulation in the Antarctic Circumpolar Current. The results herein demonstrate that the FV version of the CCSM coupled model is a state-of-the-art climate model whose simulation capabilities are in the class of those used for Intergovernmental Panel on Climate Change (IPCC) assessments. The simulated climate is very similar to that of the T85 version in terms of its biases, and more like the T85 model than the other IPCC models. C1 [Bala, G.; Mirin, A.; Achutarao, Krishna; Bader, D.; Gleckler, P.] Lawrence Livermore Natl Lab, Energy & Environm Directorate, Livermore, CA 94550 USA. [Rood, R. B.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. [McClean, J.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA. [Neale, R.; Rasch, P.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA. [Achutarao, Krishna] Indian Inst Technol, New Delhi, India. RP Bala, G (reprint author), Lawrence Livermore Natl Lab, Energy & Environm Directorate, Livermore, CA 94550 USA. EM bala1@llnl.gov RI Bader, David/H-6189-2011; Rood, Richard/C-5611-2008 OI Bader, David/0000-0003-3210-339X; Rood, Richard/0000-0002-2310-4262 NR 57 TC 12 Z9 12 U1 0 U2 5 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0894-8755 EI 1520-0442 J9 J CLIMATE JI J. Clim. PD APR 1 PY 2008 VL 21 IS 7 BP 1467 EP 1486 DI 10.1175/2007JCLI2060.1 PG 20 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 288RR UT WOS:000255004000002 ER PT J AU Lu, JQ Jiang, H AF Lu, Jun-Qiang Jiang, Hanqing TI Theoretical modeling on mechanical-electrical coupling of carbon nanotubes SO JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE LA English DT Review DE carbon nanotubes; mechanical/electronic coupling; metal-semiconductor transition ID INCORPORATING INTERATOMIC POTENTIALS; ELECTRONIC-STRUCTURE; FRACTURE NUCLEATION; DEFORMATION; TRANSISTORS; CIRCUITS; QUANTUM; SIZE AB Carbon nanotubes have been studied extensively due to their unique properties, ranging from electronic, mechanical, optical, to thermal properties. The coupling between the electronic and mechanical properties of carbon nanotubes has emerged as a new field, which raises both interesting fundamental problems and fantastic application potentials. In this article, we will review our recent work on the theoretical modeling on mechanical-electrical coupling of carbon nanotubes subject to various loading conditions, including tension/compression, torsion, and squashing. Some related work by other groups will be also mentioned. C1 [Jiang, Hanqing] Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA. [Lu, Jun-Qiang] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, US Dept Energy, Oak Ridge, TN 37831 USA. RP Jiang, H (reprint author), Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA. RI Jiang, Hanqing/B-1810-2008; LU, JUN-QIANG/B-9511-2008 OI Jiang, Hanqing/0000-0002-1947-4420; LU, JUN-QIANG/0000-0002-0758-9925 NR 35 TC 1 Z9 1 U1 0 U2 1 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1546-1955 J9 J COMPUT THEOR NANOS JI J. Comput. Theor. Nanosci. PD APR PY 2008 VL 5 IS 4 BP 449 EP 463 PG 15 WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 296MI UT WOS:000255548400003 ER PT J AU Loubere, R Shashkov, M Wendroff, B AF Loubere, R. Shashkov, M. Wendroff, B. TI Volume consistency in a staggered grid Lagrangian hydrodynamics scheme SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE staggered Lagrangian schemes; volume consistency; entropy; hydrodynamics AB Staggered grid Lagrangian schemes for compressible hydrodynamics involve a choice of how internal energy is advanced in time. The options depend on two ways of defining cell volumes: an indirect one, that guarantees total energy conservation, and a direct one that computes the volume from its definition as a function of the cell vertices. It is shown that the motion of the vertices can be defined so that the two volume definitions are identical. A so modified total energy conserving staggered scheme is applied to the Coggeshall adiabatic compression problem, and now also entropy is basically exactly conserved for each Lagrangian cell, and there is increased accuracy for internal energy. The overall improvement as the grid is refined is less than what might be expected. (C) 2008 Elsevier Inc. All rights reserved. C1 [Loubere, R.] Univ Toulouse, UPS, IMT, F-31062 Toulouse, France. [Loubere, R.] CNRS, F-31062 Toulouse, France. [Shashkov, M.; Wendroff, B.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Loubere, R (reprint author), Univ Toulouse, UPS, IMT, F-31062 Toulouse, France. EM loubere@mip.ups-tlse.fr; shashkov@lanl.gov; bbw@lanl.gov NR 6 TC 9 Z9 9 U1 0 U2 1 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 J9 J COMPUT PHYS JI J. Comput. Phys. PD APR 1 PY 2008 VL 227 IS 8 BP 3731 EP 3737 DI 10.1016/j.jcp.2008.01.006 PG 7 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 288BG UT WOS:000254960600001 ER PT J AU Bailey, TS Adams, ML Yang, B Zika, MR AF Bailey, Teresa S. Adams, Marvin L. Yang, Brian Zika, Michael R. TI A piecewise linear finite element discretization of the diffusion equation for arbitrary polyhedral grids SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE diffusion; arbitrary polyhedral grids; piecewise linear; finite element; finite-volume; unstructured grids; adaptive mesh refinement AB We develop a piecewise linear (PWL) Galerkin finite element spatial discretization for the multi-dimensional radiation diffusion equation. It uses recently introduced piecewise linear weight and basis functions in the finite element approximation and it can be applied on arbitrary polygonal (2D) or polyhedral (3D) grids. We first demonstrate some analytical properties of the PWL method and perform a simple mode analysis to compare the PWL method with Palmer's vertex-centered finite-volume method and with a bilinear continuous finite element method. We then show that this new PWL method gives solutions comparable to those from Palmer's. However., since the PWL method produces a symmetric positive-definite coefficient matrix, it should be substantially more computationally efficient than Palmer's method, which produces an asymmetric matrix. We conclude that the Galerkin PWL method is an attractive option for solving diffusion equations on unstructured grids. (C) 2007 Elsevier Inc. All rights reserved. C1 [Bailey, Teresa S.; Adams, Marvin L.] Texas A&M Univ, Dept Nucl Engn, College Stn, TX 77843 USA. [Yang, Brian; Zika, Michael R.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Adams, ML (reprint author), Texas A&M Univ, Dept Nucl Engn, College Stn, TX 77843 USA. EM baileyte@tamu.edu; mladams@tamu.edu; tbyang@llnl.gov; zika@llnl.gov NR 10 TC 2 Z9 2 U1 1 U2 2 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 J9 J COMPUT PHYS JI J. Comput. Phys. PD APR 1 PY 2008 VL 227 IS 8 BP 3738 EP 3757 DI 10.1016/j.jcp.2007.11.026 PG 20 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 288BG UT WOS:000254960600002 ER PT J AU Martinez, E Marian, J Kalos, MH Perlado, JM AF Martinez, E. Marian, J. Kalos, M. H. Perlado, J. M. TI Synchronous parallel kinetic Monte Carlo for continuum diffusion-reaction systems SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE kinetic Monte Carlo; parallel computing; diffusion; scalability ID ISING SPIN SYSTEMS; SIMULATION; TIME; ALGORITHM; GROWTH AB A novel parallel kinetic Monte Carlo (kMC) algorithm formulated on the basis of perfect time synchronicity is presented. The algorithm is intended as a generalization of the standard n-fold kMC method, and is trivially implemented in parallel architectures. In its present form, the algorithm is not rigorous in the sense that boundary conflicts are ignored. We demonstrate, however, that, in their absence, or if they were correctly accounted for, our algorithm solves the same master equation as the serial method. We test the validity and parallel performance of the method by solving several pure diffusion problems (i.e. with no particle interactions) with known analytical solution. We also study diffusion-reaction systems with known asymptotic behavior and find that, for large systems with interaction radii smaller than the typical diffusion length, boundary conflicts are negligible and do not affect the global kinetic evolution, which is seen to agree with the expected analytical behavior. Our method is a controlled approximation in the sense that the error incurred by ignoring boundary conflicts can be quantified intrinsically, during the course of a simulation, and decreased arbitrarily (controlled) by modifying a few problem-dependent simulation parameters. (C) 2007 Elsevier Inc. All rights reserved. C1 [Martinez, E.; Marian, J.; Kalos, M. H.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Martinez, E.; Perlado, J. M.] Univ Politecn Madrid, Inst Fus Nucl, E-28006 Madrid, Spain. RP Martinez, E (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM martinez210@llnl.gov NR 33 TC 34 Z9 34 U1 3 U2 14 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD APR 1 PY 2008 VL 227 IS 8 BP 3804 EP 3823 DI 10.1016/j.jcp.2007.11.045 PG 20 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 288BG UT WOS:000254960600005 ER PT J AU Nourgaliev, RR Liou, MS Theofanous, TG AF Nourgaliev, R. R. Liou, M. -S. Theofanous, T. G. TI Numerical prediction of interfacial instabilities: Sharp interface method (SIM) SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE interfacial instability; interfacial flows; gas-liquid interfaces; sharp-interface treatment; viscous Kelvin-Helmholtz instability; Yih instability; Rayleigh-Taylor instability; instability-seeding in numerical simulations ID RAYLEIGH-TAYLOR INSTABILITY; INCOMPRESSIBLE 2-PHASE FLOWS; CHARACTERIZED VISCOELASTIC FLUIDS; NAVIER-STOKES EQUATIONS; DRIVEN CHANNEL FLOW; ADAPTIVE LEVEL SET; MULTIPHASE FLOW; SURFACE-TENSION; FRONT-TRACKING; LINEAR-STABILITY AB We introduce a sharp interface method (SIM) for the direct numerical simulation of unstable fluid-fluid interfaces. The method is based on the level set approach and the structured adaptive mesh refinement technology, endowed with a corridor of irregular, cut-cell grids that resolve the interfacial region to third-order spatial accuracy. Key in that regard are avoidance of numerical mixing, and a least-squares interpolation method that is supported by irregular datasets distinctly on each side of the interface. Results on test problems show our method to be free of the spurious current problem of the continuous surface force method and to converge, on grid refinement, at near-theoretical rates. Simulations of unstable Rayleigh-Taylor and viscous Kelvin-Helmholtz flows are found to converge at near-theoretical rates to the exact results over a wide range of conditions. Further, we show predictions of neutral-stability maps of the viscous Kelvin-Helmholtz flows (Yih instability), as well as self-selection of the most unstable wave-number in multimode simulations of Rayleigh-Taylor instability. All these results were obtained with a simple seeding of random infinitesimal disturbances of interface-shape, as opposed to seeding by a complete eigenmode. For other than elementary flows the latter would normally not be available, and extremely difficult to obtain if at all. Sample comparisons with our code adapted to mimic typical diffuse interface treatments were not satisfactory for shear-dominated flows. On the other hand the sharp dynamics of our method would appear to be compatible and possibly advantageous to any interfacial flow algorithm in which the interface is represented as a discrete Heaviside function. Published by Elsevier Inc. C1 [Nourgaliev, R. R.; Theofanous, T. G.] Univ Calif Santa Barbara, Ctr Risk Studies & Safety, Santa Barbara, CA 93106 USA. [Liou, M. -S.] NASA, Glenn Res Ctr, Aeroprop Div, Cleveland, OH USA. RP Nourgaliev, RR (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA. EM robert.nourgaliev@inl.gov; meng-sing.liou@grc.nasa.gov; theo@engr.ucsb.edu NR 74 TC 20 Z9 21 U1 0 U2 15 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 J9 J COMPUT PHYS JI J. Comput. Phys. PD APR 1 PY 2008 VL 227 IS 8 BP 3940 EP 3970 DI 10.1016/j.jcp.2007.12.008 PG 31 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 288BG UT WOS:000254960600011 ER PT J AU Wen, JS Xu, ZJ Xu, GY Huecker, M Tranquada, JM Gu, GD AF Wen, J. S. Xu, Z. J. Xu, G. Y. Huecker, M. Tranquada, J. M. Gu, G. D. TI Large Bi-2212 single crystal growth by the floating-zone technique SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 15th International Conference on Crystal Growth CY AUG 12-17, 2007 CL Salt Lake City, UT SP ACCG DE crystal growth; floating-zone technique; cuprates; superconducting materials ID SUPERCONDUCTOR; BI2SR2CACU2O8+DELTA AB Effects of growth velocity on the crystal-growth behavior of Bi2Sr2Ca1Cu2Ox (Bi-2212) have been studied by the floating-zone technique. The results show that a necessary condition for obtaining large single crystals along the c-axis is that the solid-liquid interface of a growing rod maintains a stable planar growth front. The planar liquid-solid growth interface tends to break down into a cellular interface when the growth velocity is higher than 0.25 mm/h. Single crystals of up to 50 x 7.2 x 7 mm 3 along the a-, b- and c-axes, respectively, have been cut from a 7.2 turn diameter rod obtained with optimum growth conditions. T-n(onset) is 91 K as determined from magnetization measurements on as-grown crystals. Optical polarization microscopy and neutron diffraction show that the quality of the large single crystals is good. Published by Elsevier B.V. C1 [Wen, J. S.; Xu, Z. J.; Xu, G. Y.; Huecker, M.; Tranquada, J. M.; Gu, G. D.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Wen, JS (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. EM jwen@bnl.gov RI Tranquada, John/A-9832-2009; Wen, Jinsheng/F-4209-2010; Xu, Guangyong/A-8707-2010; xu, zhijun/A-3264-2013; Gu, Genda/D-5410-2013 OI Tranquada, John/0000-0003-4984-8857; Wen, Jinsheng/0000-0001-5864-1466; Xu, Guangyong/0000-0003-1441-8275; xu, zhijun/0000-0001-7486-2015; Gu, Genda/0000-0002-9886-3255 NR 12 TC 19 Z9 19 U1 1 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD APR PY 2008 VL 310 IS 7-9 SI SI BP 1401 EP 1404 DI 10.1016/j.jcrysgro.2007.09.028 PG 4 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA 300RP UT WOS:000255843200020 ER PT J AU Krishnaswami, K Vangala, SR Dauplaise, HM Allen, LP Dallas, G Bakken, D Bliss, DF Goodhue, WD AF Krishnaswami, Kannan Vangala, Shivashankar R. Dauplaise, Helen M. Allen, Lisa P. Dallas, Gordon Bakken, Daniel Bliss, David F. Goodhue, William D. TI Molecular beam epitaxy on gas cluster ion beam-prepared GaSb substrates: Towards improved surfaces and interfaces SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 15th International Conference on Crystal Growth CY AUG 12-17, 2007 CL Salt Lake City, UT SP ACCG DE surface processes; molecular beam epitaxy; gas cluster ion beam; antimonides; surface oxides; GaSb ID GASB(100) SURFACES; SULFIDE TREATMENT; GROWTH AB We report results of a surface modification process for (100) GaSb using a gas cluster ion beam (GCIB) technique that removes chemical mechanical polish (CMP)-induced surface damage and replaces the native oxide with an engineered surface oxide, the composition of which depends on the reactive gas employed. X-ray photoelectron spectroscopy of O-2-, CF4/O-2-, and HBr-GCIB surface oxides is presented indicating the presence of mixed Ga- and Sb-oxides, with mostly Ga-oxides at the interface, that desorb at temperatures ranging 530-560 degrees C. Cross-sectional transmission electron microscopy of molecular-beam epitaxy grown GaSb/AlGaSb layers showed that the HBr-GCIB surface produced a smooth dislocation-free substrate-to-epitransition with no discernable interface. Topography of epi surfaces, using atomic force microscopy, showed that GCIB surfaces resulted in characteristic step-terrace formations comprising monatomic steps and wide terraces. The HBr-GCIB process can be easily adapted to a large-scale manufacturing process to produce epi-ready GaSb substrates. (C) 2008 Elsevier B.V. All rights reserved. C1 [Krishnaswami, Kannan] Pacific NW Natl Lab, Richland, WA 99352 USA. [Vangala, Shivashankar R.; Goodhue, William D.] Univ Massachusetts, Dept Phys, Photon Ctr, Lowell, MA 01854 USA. [Dauplaise, Helen M.; Bliss, David F.] USAF, Res Lab, SNHC, Hanscom AFB, MA 01731 USA. [Allen, Lisa P.; Dallas, Gordon; Bakken, Daniel] Galaxy Compound Semicond Inc, Spokane, WA USA. RP Krishnaswami, K (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA. EM kannan.krishnaswami@pnl.gov NR 19 TC 2 Z9 2 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD APR PY 2008 VL 310 IS 7-9 SI SI BP 1619 EP 1626 DI 10.1016/j.jcrysgro.2007.11.225 PG 8 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA 300RP UT WOS:000255843200057 ER PT J AU Hawramia, R Batra, AK Aggarwal, MD Roy, UN Groza, M Cui, Y Burger, A Cherepy, N Niedermayr, T Payne, SA AF Hawramia, R. Batra, A. K. Aggarwal, M. D. Roy, U. N. Groza, M. Cui, Y. Burger, A. Cherepy, Nerine Niedermayr, Thomas Payne, Stephen A. TI New scintillator materials (K2CeBr5 and CS2CeBr5) SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 15th International Conference on Crystal Growth CY AUG 12-17, 2007 CL Salt Lake City, UT SP ACCG DE energy resolution; Ce3+; K2CeBr5; light yield; scintillator materials ID ENERGY-RESOLUTION SCINTILLATOR AB Cesium cerium bromide (CS2CeBr5) and potassium cerium bromide (K2CeBr5) are new scintillator materials for X-ray and gamma ray detector applications. Recently, halide scintillator materials such as Ce-doped lanthanum bromide have been proved to be very important materials for the same purpose. These materials are highly hygroscopic; a search for high-light-yield non-hygroscopic materials was highly desirable to advance the scintillator technology. In this paper, we are reporting the crystal growth of novel scintillator materials, CS2CeBr5 and K2CeBr5. Crystals were successfully grown from the melt using the vertical Bridgman-Stockbarger technique. In comparison with the high-performance LaBr3 or LaCl3 crystals, cerium-based alkali halide crystals, CS2CeBr5 and K2CeBr5, have similar scintillation properties, while being much less hygroscopic. Furthermore, cesium-based compounds will not suffer from the self-activity present in potassium and lanthanum compounds. However, the CS2CeBr5 crystals did not grow properly probably due to non-congruent melting or some phase transition during cooling. Published by Elsevier B.V. C1 [Hawramia, R.; Batra, A. K.; Aggarwal, M. D.] Alabama A&M Univ, Dept Phys, Normal, AL 35762 USA. [Roy, U. N.; Groza, M.; Cui, Y.; Burger, A.] Fisk Univ, Dept Phys, Nashville, TN 37208 USA. [Cherepy, Nerine; Niedermayr, Thomas; Payne, Stephen A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Hawramia, R (reprint author), Alabama A&M Univ, Dept Phys, Normal, AL 35762 USA. EM drh1980@gmail.com RI Cherepy, Nerine/F-6176-2013 OI Cherepy, Nerine/0000-0001-8561-923X NR 11 TC 13 Z9 13 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD APR PY 2008 VL 310 IS 7-9 SI SI BP 2099 EP 2102 DI 10.1016/j.jcrysgro.2007.11.077 PG 4 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA 300RP UT WOS:000255843200146 ER PT J AU Geisz, JF Levander, AX Norman, AG Jones, KM Romero, MJ AF Geisz, J. F. Levander, A. X. Norman, A. G. Jones, K. M. Romero, M. J. TI In situ stress measurement for MOVPE growth of high efficiency lattice-mismatched solar cells SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 15th International Conference on Crystal Growth CY AUG 12-17, 2007 CL Salt Lake City, UT SP ACCG DE stresses; organometailic vapor phase epitaxy; semiconducting III-V materials; solar cells ID STRAIN; LAYERS; MULTILAYERS; FILMS AB We have recently reported high efficiencies in a monolithic III-V triple-junction solar cell design that is grown inverted with a metamorphic 1.0 eV bottom In.27Ga.73As junction. The biaxial stress and strain grown into this highly lattice-mismatched junction can be controlled by varying the design of a step-graded GaxIn1-xP buffer layer, in which most, but not all, of the 1.9% misfit strain is relieved. A multi-beam optical stress sensor (MOSS) is a convenient tool for in situ measurement of stress during metal-organic vapor phase epitaxy (MOVPE) for the optimization of solar cell performance. The analysis of stress from curvature data is complicated by significant temperature effects due to relatively small thermal gradients in our atmospheric-pressure MOVPE reactor. These temperature effects are discussed and approximations made to allow practical analysis of the data. The results show excellent performance of inverted In.27Ga.73As solar cells grown with slight compressive stress, but degradation under tensile stress. The best devices had a V-oc, of 0.54V and a dislocation density in the low 10(6) cm(-2). The in situ stress data is also compared with ex situ strain data derived from X-ray diffraction measurements. (C) 2007 Published by Elsevier B.V. C1 [Geisz, J. F.; Levander, A. X.; Norman, A. G.; Jones, K. M.; Romero, M. J.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Geisz, JF (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM john_geisz@nrel.gov RI Norman, Andrew/F-1859-2010 OI Norman, Andrew/0000-0001-6368-521X NR 10 TC 23 Z9 24 U1 1 U2 20 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD APR PY 2008 VL 310 IS 7-9 SI SI BP 2339 EP 2344 DI 10.1016/j.jcrysgro.2007.11.048 PG 6 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA 300RP UT WOS:000255843200190 ER PT J AU Ahrenkiel, RK Johnston, SW Metzger, WK Dippo, P AF Ahrenkiel, R. K. Johnston, S. W. Metzger, W. K. Dippo, P. TI Relationship of band-edge luminescence to recombination lifetime in silicon wafers SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article; Proceedings Paper CT Symposium on Recent Developments in Semiconductor, Electro Optic and Radio Frequency Materials and Metrologies for Advanced Materials and Devices CY FEB, 2007 CL Orlando, FL SP Thin Film & Interfaces Comm, Elect Magnet & Photon Mat Div DE silicon; recombination lifetime; minority carrier lifetime; photoluminescence ID MULTICRYSTALLINE SILICON; ROOM-TEMPERATURE; PHOTOLUMINESCENCE; SEMICONDUCTORS; SPECTROSCOPY AB In recent years, intrinsic luminescence has been used as a method to characterize the recombination lifetime of crystalline silicon. The assumption is that the steady-state intrinsic photoluminescence at 1.09 eV (1.134 mu m) can be related to the recombination lifetime. In this work, we measured the band-edge photoluminescence (PL) intensities of a number of single-crystal wafers. The resistivity in the wafer set ranges from 1 to 11,000 ohm-cm under constant excitation intensity. We then measured the PL spectra and recombination lifetimes of these wafer sets under a variety of conditions. The lifetime was measured using resonant-coupled photoconductive decay (RCPCD) in both air ambient and an iodine/methanol solution. The same procedure was used for the PL spectra. Plots of the measured lifetime versus the PL intensity showed weak correlation between the two quantities in air ambient. However, there is a positive relationship between the near-bandgap PL intensity and the recombination lifetime for passivated surfaces. Some fundamental physical reasons will be used to explain these results. C1 [Ahrenkiel, R. K.] Colorado Sch Mines, Dept Met & Mat Engn, Golden, CO 80401 USA. [Ahrenkiel, R. K.; Johnston, S. W.; Metzger, W. K.; Dippo, P.] Natl Renewable Energy Lab, Golden, CO USA. RP Ahrenkiel, RK (reprint author), Colorado Sch Mines, Dept Met & Mat Engn, Golden, CO 80401 USA. EM rahren@mac.com NR 21 TC 5 Z9 5 U1 1 U2 13 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 0361-5235 J9 J ELECTRON MATER JI J. Electron. Mater. PD APR PY 2008 VL 37 IS 4 BP 396 EP 402 DI 10.1007/s11664-007-0325-z PG 7 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA 268HZ UT WOS:000253572200006 ER PT J AU Bernier, JV Miller, MP Park, JS Lienert, U AF Bernier, Joel V. Miller, Matthew P. Park, Jun-Sang Lienert, Ulrich TI Quantitative stress analysis of recrystallized OFHCCu subject to deformation in situ SO JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 5th International Conference on Materials Processing Defects (MDP-5) CY JUL 18-20, 2007 CL Cornell Univ, Ithaca, NY HO Cornell Univ ID SYNCHROTRON DIFFRACTION IMAGES; POLE-FIGURE INVERSION; TEXTURE ANALYSIS; POLYCRYSTALLINE MATERIALS; X-RAY; ORIENTATION; STRAINS; SAMPLE; FIELD AB Quantitative strain analysis (QSA) provides a means for assessing the orientation-dependent micromechanical stress states in bulk polycrystalline materials. When combined with quantitative texture analysis, it facilitates tracking the evolution of micromechanical states associated with selected texture components for specimens deformed in situ. To demonstrate this ability, a sheet specimen of rolled and recrystallized oxygen-free high conductivity Cu was subject to tensile deformation at APS 1-ID-C. Strain pole figures (SPFs) were measured at a series of applied loads, both below and above the onset of macroscopic yielding. From these data, a lattice strain distribution function (LSDF) was calculated for each applied load. Due to the tensorial nature of the LSDF the full orientation-dependent stress tensor fields can be calculated unambiguously from the single-crystal elastic moduli. The orientation distribution function (ODF) is used to calculate volume-weighted average stress states over tubular volumes centered on the < 100 >parallel to[100], < 311 >parallel to[100], and < 111 >parallel to[100] fibers-accounting for approximate to 50% of the total volume-are shown as functions of the applied load along [100]. Corresponding weighted standard deviations are calculated as well. Different multiaxial stress states are observed to develop in the crystal subpopulations despite the uniaxial nature of the applied stress. The evolution of the orientation-dependent elastic strain energy density is also examined. The effects of applying stress bound constraints on the SPF inversion are discussed, as are extensions of QSA to examine defect nucleation and propagation. C1 [Bernier, Joel V.] Lawrence Livermore Natl Lab, Engn Technol Div, Livermore, CA 94551 USA. [Miller, Matthew P.; Park, Jun-Sang] Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA. [Lienert, Ulrich] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Bernier, JV (reprint author), Lawrence Livermore Natl Lab, Engn Technol Div, B141-R1114,L-229, Livermore, CA 94551 USA. EM bernier2@llnl.gov; mpm4@cornell.edu; jp118@cornell.edu; lienert@aps.anl.gov RI Park, Jun-Sang/B-3644-2011 OI Park, Jun-Sang/0000-0002-3416-8130 NR 31 TC 0 Z9 0 U1 0 U2 5 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0094-4289 J9 J ENG MATER-T ASME JI J. Eng. Mater. Technol.-Trans. ASME PD APR PY 2008 VL 130 IS 2 AR 021021 DI 10.1115/1.2870234 PG 11 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA 295OQ UT WOS:000255484200023 ER PT J AU Bernier, JV Barton, NR Knap, J AF Bernier, Joel V. Barton, Nathan R. Knap, Jaroslaw TI Polycrystal plasticity based predictions of strain localization in metal forming SO JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 5th International Conference on Materials Processing Defects (MDP-5) CY JUL 18-20, 2007 CL Cornell Univ, Ithaca, NY HO Cornell Univ ID SHEAR-BAND FORMATION; PLANE-STRAIN; TEXTURE; MODEL; DEFORMATION; COMPRESSION; METHODOLOGY; ALLOYS; SOLIDS AB In this study, a multiscale material model is employed to simulate two metalforming processes: 2D plane strain compression and a 3D biaxial bulge test. A generalized Taylor-type polycrystal model is employed to describe the fine scale viscoplastic response of the material, while the coarse scale response is computed using a multiphysics finite element code. The coupling between the local responses of the textured polycrystal and the continuum level is achieved via an adaptive sampling framework, which is shown to greatly reduce the total number of fine scale evaluations required to achieve a specified error tolerance. The anisotropy represented at the fine scale is sufficient to observe strain localization in both forming processes. For the case of idealized plane strain compression, a fairly diffuse yet distinct patterning of plastic strain localization develops in a manner consistent with experimental observations. The application of friction constraints to the compression surfaces-as is present in channel die compression tests-dramatically strengthens and redistributes the localization patterns. The simulated biaxial bulge test also demonstrates strain localization that is in agreement with the locations of diffuse necks in experimental observations. The tests are conducted using a federated multiple-program multiple-data simulation, which allows for load balancing between the coarse and fine scale calculations. Such a simulation framework is capable of efficiently embedding physically robust, but computationally expensive material models in component scale simulations appropriate to design decisions. C1 [Bernier, Joel V.; Barton, Nathan R.] Lawrence Livermore Natl Lab, Engn Technol Div, Livermore, CA 94551 USA. [Knap, Jaroslaw] Lawrence Livermore Natl Lab, Div Mat Sci & Technol, Livermore, CA 94551 USA. RP Bernier, JV (reprint author), Lawrence Livermore Natl Lab, Engn Technol Div, B141 R1054,L-227, Livermore, CA 94551 USA. EM bernier2@llnl.gov; barton22@llnl.gov; knap2@llnl.gov NR 17 TC 0 Z9 0 U1 0 U2 6 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0094-4289 J9 J ENG MATER-T ASME JI J. Eng. Mater. Technol.-Trans. ASME PD APR PY 2008 VL 130 IS 2 AR 021020 DI 10.1115/1.2884331 PG 5 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA 295OQ UT WOS:000255484200022 ER PT J AU Croft, M Jisrawi, N Zhong, Z Horvath, K Holtz, RL Shepard, M Lahshmipathy, M Sadananda, K Skaritka, J Shukla, V Sadangi, RK Tsakalakos, T AF Croft, M. Jisrawi, N. Zhong, Z. Horvath, K. Holtz, R. L. Shepard, M. Lahshmipathy, M. Sadananda, K. Skaritka, J. Shukla, V. Sadangi, R. K. Tsakalakos, T. TI Stress gradient induced strain localization in metals: High resolution strain cross sectioning via synchrotron x-ray diffraction SO JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 5th International Conference on Materials Processing Defects (MDP-5) CY JUL 18-20, 2007 CL Cornell Univ, Ithaca, NY HO Cornell Univ DE C. x-ray diffraction; nondestructive evaluation; B. residual stress; metallic materials; plastic collapse ID FULL-PROFILE ANALYSIS; RESIDUAL-STRESS; FATIGUE; BULK; RADIATION; SAMPLE; TENSOR; FIELD; GRAIN AB Strain localization in the presence of a stress gradient is a phenomenon common to many systems described by continuum mechanics. Variations of this complex phenomenon lead to interesting nonlinear effects in materials/engineering science as well as in other fields. Here, the synchrotron based energy dispersive x-ray diffraction (EDXRD) technique is used for high spatial resolution profiling of both compression and tension induced strain localization in important materials/engineering problems. Specifically, compression induced strain localization in shot peened materials and tension induced strain localization in the plastic zones adjoining the faces of a fatigue crack are profiled. The utility of the EDXRD synchrotron technique for nondestructively cross-sectioning strain variations on small length scales (down to 10-20 mu m) is described. While the strain field profiling relies on the shift of the Bragg lines, the data show that plastic deformation regions can also consistently be seen in the broadening of the Bragg peaks through the full width at half maximum parameter Quantitative correlations between the synchrotron based x-ray determined deformations and surface deformations, as measured by optical surface height profiling, are also made. C1 [Croft, M.; Horvath, K.] Rutgers State Univ, Dept Phys Astron, Piscataway, NJ 08854 USA. [Croft, M.; Zhong, Z.; Skaritka, J.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Jisrawi, N.; Shukla, V.; Sadangi, R. K.; Tsakalakos, T.] Rutgers State Univ, Dept Mat Sci & Engn, Piscataway, NJ 08854 USA. [Jisrawi, N.] Univ Sharjah, Dept Basic Sci, Sharjah, U Arab Emirates. [Holtz, R. L.] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA. [Shepard, M.] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA. [Lahshmipathy, M.] Zygo Corp, Middlefield, CT 06455 USA. [Sadananda, K.] Tech Data Anal Inc, Falls Church, VA 22046 USA. RP Croft, M (reprint author), Rutgers State Univ, Dept Phys Astron, Piscataway, NJ 08854 USA. NR 40 TC 0 Z9 0 U1 1 U2 5 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0094-4289 J9 J ENG MATER-T ASME JI J. Eng. Mater. Technol.-Trans. ASME PD APR PY 2008 VL 130 IS 2 AR 021005 DI 10.1115/1.2840962 PG 10 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA 295OQ UT WOS:000255484200007 ER PT J AU Larson, BC Tischler, JZ El-Azab, A Liu, WJ AF Larson, B. C. Tischler, J. Z. El-Azab, Anter Liu, Wenjun TI Dislocation density tensor characterization of deformation using 3D X-ray microscopy SO JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 5th International Conference on Materials Processing Defects (MDP-5) CY JUL 18-20, 2007 CL Cornell Univ, Ithaca, NY HO Cornell Univ ID BOUNDARY-VALUE PROBLEM; STRUCTURAL MICROSCOPY; SINGLE-CRYSTALS; PHENOMENOLOGICAL MODEL; STATISTICAL-MECHANICS; ELASTIC STRAINS; SMALL SCALES; MICROSTRUCTURE; RESOLUTION; DYNAMICS AB Three-dimensional (3D) X-ray microscopy with submicron resolution has been used to make spatially resolved measurements of lattice curvature and elastic strain over two-dimensional slices in thin deformed Si plates. The techniques and capabilities associated with white-beam 3D X-ray microscopy are discussed, and both theoretical and experimental considerations associated with the measurement of Nye dislocation density tensors in deformed materials are presented. The ability to determine the local geometrically necessary dislocation (GND) density in the form of a dislocation density tensor with micron spatial resolution over mesoscopic length scales, is demonstrated. Results are shown for the special case of an elastically bent (dislocation free) thin Si plate and for a similar thin Si plate that was bent plastically, above the brittle-to-ductile transition temperature, to introduce dislocations. Within the uncertainties of the measurements, the known result that GND density is zero for elastic bending is obtained, and well-defined GND distributions are observed in the plastically deformed Si plate. The direct and absolute connection between experimental measurements of GND density and multiscale modeling and computer simulations of deformation microstructures is discussed to highlight the importance of submicron-resolution 3D X-ray microscopy for mesoscale characterization of material defects and to achieve a fundamental understanding of deformation in ductile materials. C1 [Larson, B. C.; Tischler, J. Z.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [El-Azab, Anter] Florida State Univ, Dept Mech Engn, Tallahassee, FL 32310 USA. [Liu, Wenjun] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Larson, BC (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. EM bcl@ornl.gov NR 46 TC 0 Z9 0 U1 1 U2 8 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0094-4289 J9 J ENG MATER-T ASME JI J. Eng. Mater. Technol.-Trans. ASME PD APR PY 2008 VL 130 IS 2 AR 021024 DI 10.1115/1.2884336 PG 10 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA 295OQ UT WOS:000255484200026 ER PT J AU Suter, RM Hefferan, CM Li, SF Hennessy, D Xiao, C Lienert, U Tieman, B AF Suter, R. M. Hefferan, C. M. Li, S. F. Hennessy, D. Xiao, C. Lienert, U. Tieman, B. TI Probing microstructure dynamics with X-ray diffraction microscopy SO JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 5th International Conference on Materials Processing Defects (MDP-5) CY JUL 18-20, 2007 CL Cornell Univ, Ithaca, NY HO Cornell Univ ID GRAIN-BOUNDARIES; POLYCRYSTALS; DEFORMATION; POWDERS; OPTICS AB We describe our recent work on developing X-ray diffraction microscopy as a tool for studying three dimensional microstructure dynamics. This is a measurement technique that is demanding of experimental hardware and presents a challenging computational problem to reconstruct the sample microstructure. A dedicated apparatus exists at beamline 1-ID of the Advanced Photon Source for performing these measurements. Submicron mechanical precision is combined with focusing optics that yield approximate to 2 mu m high X 1.3 mm wide line focused beam at 50 keV. Our forward modeling analysis approach generates diffraction from a simulated two dimensional triangular mesh. Each mesh element is assigned an independent orientation by optimizing the fit to experimental data. The method is computationally demanding but is adaptable to parallel computation. We illustrate the state of development by measuring and reconstructing a planar section of an aluminum polycrystal microstructure. An orientation map of similar to 90 grains is obtained along with a map showing the spatial variation in the quality of the fit to the data. Sensitivity to orientation variations within grains is on the order of 0.1 deg. Volumetric studies of the response of microstructures to thermal or mechanical treatment will soon become practical. It should be possible to incorporate explicit treatment of defect distributions and to observe their evolution. C1 [Suter, R. M.] Carnegie Mellon Univ, Dept Phys & Mat Sci & Engn, Pittsburgh, PA 15213 USA. [Hefferan, C. M.; Li, S. F.; Hennessy, D.; Xiao, C.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. [Lienert, U.; Tieman, B.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Suter, RM (reprint author), Carnegie Mellon Univ, Dept Phys & Mat Sci & Engn, Pittsburgh, PA 15213 USA. EM suter@andrew.cmu.edu; cheffera@andrew.cmu.edu; sfli@andrew.cmu.edu; hennessy@anl.gov; changshi.xiao@gmail.com; lienert@aps.anl.gov; tieman@aps.anl.gov RI Hennessy, Daniel/A-6203-2011; Li, Shiu Fai/B-2605-2014; Suter, Robert/P-2541-2014 OI Li, Shiu Fai/0000-0001-9805-5621; Suter, Robert/0000-0002-0651-0437 NR 10 TC 0 Z9 0 U1 0 U2 4 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0094-4289 J9 J ENG MATER-T ASME JI J. Eng. Mater. Technol.-Trans. ASME PD APR PY 2008 VL 130 IS 2 AR 021007 DI 10.1115/1.2840965 PG 5 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA 295OQ UT WOS:000255484200009 ER PT J AU Small, JA Bunn, A McKinstry, C Peacock, A Miracle, AL AF Small, Jack A. Bunn, Amoret McKinstry, Craig Peacock, Aaron Miracle, Ann L. TI Investigating freshwater periphyton community response to uranium with phospholipid fatty acid and denaturing gradient gel electrophoresis analyses SO JOURNAL OF ENVIRONMENTAL RADIOACTIVITY LA English DT Article DE periphyton; PLFA; DGGE; uranium; community analysis ID ALGA CHLORELLA SP.; SULFATE-REDUCING BACTERIA; MICROBIAL COMMUNITIES; RIBOSOMAL-RNA; TOXICITY; DIVERSITY; BIOMASS; ENVIRONMENTS; PROFILES; STREAM AB Periphyton communities can be used as monitors of ecosystem health and as indicators of contamination in lotic systems. Measures of biomass, community structure, and genetic diversity were used to investigate impacts of uranium (U) exposure on periphyton. Laboratory exposures of periphyton in river water amended with U-238 were performed for 5 days, followed by 2 days of U deputation in unamended river water. Productivity as measured by biomass was not affected by concentrations up to 100 mu g U-238 L-1. Phospholipid fatty acid (PLFA) profiles and denaturing gradient gel electrophoresis (DGGE) banding patterns revealed no changes in community or genetic structure related to U exposure. We suggest that the periphyton community as a whole was not significantly impacted by exposures of U-238 up to a concentration of 100 mu g L-1. These findings have significance for the assessment and prediction of U impacts on aquatic ecosystems. (C) 2007 Elsevier Ltd. All rights reserved. C1 [Small, Jack A.; Bunn, Amoret; McKinstry, Craig; Miracle, Ann L.] Pacific NW Natl Lab, Biotechnol & Ecotoxicol Grp, Richland, WA 99354 USA. [Peacock, Aaron] Univ Tennessee, Ctr Biomarker Anal, Knoxville, TN 37932 USA. RP Small, JA (reprint author), Pacific NW Natl Lab, Biotechnol & Ecotoxicol Grp, POB 999,Mail Stop K2-21,902 Battelle Blvd, Richland, WA 99354 USA. EM Jack.Small@pnl.gov NR 32 TC 6 Z9 7 U1 3 U2 15 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0265-931X J9 J ENVIRON RADIOACTIV JI J. Environ. Radioact. PD APR PY 2008 VL 99 IS 4 BP 730 EP 738 DI 10.1016/j.jenvrad.2007.09.009 PG 9 WC Environmental Sciences SC Environmental Sciences & Ecology GA 294ZZ UT WOS:000255446100016 PM 18031876 ER PT J AU Kastengren, AL Powell, CF Riedel, T Cheong, SK Im, KS Liu, X Wang, YJ Wang, J AF Kastengren, A. L. Powell, C. F. Riedel, T. Cheong, S. -K. Im, K. -S. Liu, X. Wang, Y. J. Wang, J. TI Nozzle geometry and injection duration effects on diesel sprays measured by X-ray radiography SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Article ID JET AB X-ray radiography was used to measure the behavior of four fuel sprays from a light-duty common-rail diesel injector. The sprays were at 250 bar injection pressure and 1 bar ambient pressure. Injection durations of 400 mu s and 1000 mu s were tested, as were axial single-hole nozzles with hydroground and nonhydroground geometries. The X-ray data provide quantitative measurements of the internal mass distribution of the spray, including near the injector orifice. Such measurements are not possible with optical diagnostics. The 400 mu s sprays from the hydroground and nonhydroground nozzles appear qualitatively similar. The 1000 mu s spray from the nonhydroground nozzle has a relatively consistent moderate width, while that from the hydroground nozzle is quite wide before transitioning into a narrow jet. The positions of the leading- and trailing-edges of the spray have also been determined, as has the amount of fuel residing in a concentrated structure near the leading edge of the spray. C1 [Kastengren, A. L.; Powell, C. F.] Argonne Natl Lab, Ctr Transportat Res, Argonne, IL 60439 USA. [Riedel, T.] Robert Bosch GmbH, Diesel Syst Commercial Vehicles Engn Syst Applica, D-70049 Stuttgart, Germany. [Cheong, S. -K.; Im, K. -S.; Liu, X.; Wang, Y. J.; Wang, J.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Kastengren, AL (reprint author), Argonne Natl Lab, Ctr Transportat Res, Argonne, IL 60439 USA. EM akastengren@anl.gov RI wang, yujie/C-2582-2015 NR 29 TC 5 Z9 5 U1 0 U2 9 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0098-2202 J9 J FLUID ENG-T ASME JI J. Fluids Eng.-Trans. ASME PD APR PY 2008 VL 130 IS 4 AR 041301 DI 10.1115/1.2903516 PG 12 WC Engineering, Mechanical SC Engineering GA 290IX UT WOS:000255117600011 ER PT J AU Khan, S Aijun, L Zhang, SZ Hu, QH Zhu, YG AF Khan, Sardar Aijun, Lin Zhang, Shuzhen Hu, Qinhong Zhu, Yong-Guan TI Accumulation of polycyclic aromatic hydrocarbons and heavy metals in lettuce grown in the soils contaminated with long-term wastewater irrigation SO JOURNAL OF HAZARDOUS MATERIALS LA English DT Article DE heavy metals; plant uptake; polycyclic aromatic hydrocarbons; soil contamination; wastewater irrigation ID HEALTH-RISK ASSESSMENT; ORGANIC-CHEMICALS; TREATMENT PLANTS; INDUSTRIAL-AREA; VEGETABLES; CHINA; TIANJIN; PAHS; EFFLUENTS; ZIMBABWE AB Accumulation of polycyclic aromatic hydrocarbons (PAHs) and heavy metals (HMs) by crop plants from contaminated soils may pose health risks. A greenhouse pot experiment using lettuce (Lactuca satuva L.) as a representative vegetable was conducted to assess the concentrations of PAHs and HMs in vegetables grown in wastewater-contaminated soils. The concentrations of total PAHs were ranged from 1.5 to 3.4 mg kg(-1) in the contaminated soils, while 1.2 mg kg(-1) in the reference soil. Linear regression analyses showed that the relationships between soil and shoot PAH concentrations were stronger for LMW-PAHs (R(2) between 0.51 and 0.92) than for HMW-PAHs (R(2) 0.02 and 0.60), suggesting that translocation for LMW-PAHs is faster than HMW-PAHs. Furthermore, the data imply that root uptake was the main pathway for HMW-PAHs accumulation. The plant shoots were also highly contaminated with HMs, particularly Cd (0.4-0.9 mg kg(-1)), Cr (3.4-4.1 mg kg(-1)), Ni (11.7-15.1 mg kg(-1)) and Pb (2.3-5.3 mg kg(-1)), and exceed the guidance limits set by State Environmental Protection Administration (SEPA), China and the World Health Organization (WHO). This study highlights the potential health risks associated with cultivation and consumption of leafy vegetables on wastewater-contaminated soils. (c) 2007 Elsevier B.V. All rights reserved. C1 [Khan, Sardar; Aijun, Lin; Zhang, Shuzhen; Zhu, Yong-Guan] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Dept Soil Environm Sci, Beijing 100085, Peoples R China. [Khan, Sardar] Univ Peshawar, Dept Environm Sci, Peshawar 25120, Pakistan. [Hu, Qinhong] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94550 USA. RP Zhu, YG (reprint author), Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Dept Soil Environm Sci, Beijing 100085, Peoples R China. EM ygzhu@rcees.ac.cn RI Zhang, Shuzhen/B-9208-2009; Hu, Qinhong/C-3096-2009; Zhu, Yong-Guan/A-1412-2009; kHAN, Sardar/H-7452-2015; Khan, Sardar/C-2883-2009 OI Hu, Qinhong/0000-0002-4782-319X; Zhu, Yong-Guan/0000-0003-3861-8482; Khan, Sardar/0000-0002-7060-1771 NR 32 TC 92 Z9 104 U1 9 U2 78 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-3894 J9 J HAZARD MATER JI J. Hazard. Mater. PD APR 1 PY 2008 VL 152 IS 2 BP 506 EP 515 DI 10.1016/jjhazmat.2007.07.014 PG 10 WC Engineering, Environmental; Engineering, Civil; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 285GK UT WOS:000254765100007 PM 17706349 ER PT J AU Agashe, K Falkowski, A Low, I Servant, G AF Agashe, Kaustubh Falkowski, Adam Low, Ian Servant, Geraldine TI KK parity in warped extra dimension SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE field theories in higher dimensions; cosmology of theories beyond the SM; beyond standard model ID ELECTROWEAK SYMMETRY-BREAKING; RANDALL-SUNDRUM MODEL; COMPOSITE HIGGS-MODEL; FLAVOR VIOLATION; DARK-MATTER; BULK FIELDS; MASS; GRAVITY; BRANE; GEOMETRY AB We construct models with a Kaluza-Klein (KK) parity in a five-dimensional warped geometry, in an attempt to address the little hierarchy problem present in setups with bulk Standard Model fields. The lightest KK particle (LKP) is stable and can play the role of dark matter. We consider the possibilities of gluing two identical slices of AdS(5) in either the UV (IR-UV-IR model) or the IR region (UV-IR-UV model) and discuss the model-building issues as well as phenomenological properties in both cases. In particular, we find that the UV-IR-UV model is not gravitationally stable and that additional mechanisms might be required in the IR-UV-IR model to address flavor issues. Collider signals of the warped KK parity are different from either the conventional warped extra dimension without KK parity, in which the new particles are not necessarily pair-produced, or the KK parity in flat universal extra dimensions, where each KK level is nearly degenerate in mass. Dark matter and collider properties of a TeV mass KK Z gauge boson as the LKP are discussed. C1 [Agashe, Kaustubh] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA. [Agashe, Kaustubh] Univ Maryland, Dept Phys, Maryland Ctr Fundamental Phys, College Pk, MD 20742 USA. [Falkowski, Adam; Servant, Geraldine] CERN, Div Theory, CH-1211 Geneva 23, Switzerland. [Falkowski, Adam] Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland. [Low, Ian] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. [Low, Ian] Argonne Natl Lab, HEP Div, Theory Grp, Argonne, IL 60439 USA. [Low, Ian] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA. [Servant, Geraldine] CEA Saclay, Serv Phys Theor, F-91191 Gif Sur Yvette, France. RP Agashe, K (reprint author), Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA. EM kagashe@umd.edu; adam.falkowski@cern.ch; ilow@northwestern.edu; geraldine.servant@cern.ch NR 93 TC 49 Z9 49 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 027 DI 10.1088/1126-6708/2008/04/027 PG 37 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900027 ER PT J AU Cacciari, M Salam, GP Soyez, G AF Cacciari, Matteo Salam, Gavin P. Soyez, Gregory TI The anti-k(t) jet clustering algorithm SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE jets; QCD; hadronic colliders ID HADRON-HADRON COLLISIONS; OBSERVABLES AB The k(t) and Cambridge/Aachen inclusive jet finding algorithms for hadronhadron collisions can be seen as belonging to a broader class of sequential recombination jet algorithms, parametrised by the power of the energy scale in the distance measure. We examine some properties of a new member of this class, for which the power is negative. This "anti-k(t)" algorithm essentially behaves like an idealised cone algorithm, in that jets with only soft fragmentation are conical, active and passive areas are equal, the area anomalous dimensions are zero, the non-global logarithms are those of a rigid boundary and the Milan factor is universal. None of these properties hold for existing sequential recombination algorithms, nor for cone algorithms with split-merge steps, such as SISCone. They are however the identifying characteristics of the collinear unsafe plain "iterative cone" algorithm, for which the anti-k(t) algorithm provides a natural, fast, infrared and collinear safe replacement. C1 [Cacciari, Matteo; Salam, Gavin P.] Univ Paris 06, UPMC, LPTHE, Paris, France. [Cacciari, Matteo; Salam, Gavin P.] Univ Paris 07, CNRS, UMR 7589, Paris, France. [Soyez, Gregory] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Cacciari, M (reprint author), Univ Paris 06, UPMC, LPTHE, Paris, France. EM cacciari@lpthe.jussieu.fr; salam@lpthe.jussieu.fr; gsoyez@quark.phy.bnl.gov NR 29 TC 1349 Z9 1348 U1 1 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 063 PG 14 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900063 ER PT J AU Cacciari, M Salam, GP Soyez, G AF Cacciari, Matteo Salam, Gavin P. Soyez, Gregory TI The catchment area of jets SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE jets; QCD; hadronic colliders ID HADRON-COLLISIONS; EVENT SHAPES; ALGORITHM; RESUMMATION; FINDER AB The area of a jet is a measure of its susceptibility to radiation, like pileup or underlying event (UE), that on average, in the jet's neighbourhood, is uniform in rapidity and azimuth. In this article we establish a theoretical grounding for the discussion of jet areas, introducing two main definitions, passive and active areas, which respectively characterise the sensitivity to pointlike or diffuse pileup and UE radiation. We investigate the properties of jet areas for three standard jet algorithms, k(t), Cambridge/Aachen and SISCone. Passive areas for single- particle jets are equal to the naive geometrical expectation pi R-2, but acquire an anomalous dimension at higher orders in the coupling, calculated here at leading order. The more physically relevant active areas differ from pi R-2 even for single- particle jets, substantially so in the case of the cone algorithms like SISCone with a Tevatron Run- II split- merge procedure. We compare our results with direct measures of areas in parton- shower Monte Carlo simulations and find good agreement with the main features of the analytical predictions. We furthermore justify the use of jet areas to subtract the contamination from pileup. C1 [Cacciari, Matteo; Salam, Gavin P.] Univ Paris 06, LPTHE, UPMC, Paris, France. [Cacciari, Matteo; Salam, Gavin P.] Univ Paris Diderot Paris 7, CNRS UMR 7589, Paris, France. [Soyez, Gregory] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Cacciari, M (reprint author), Univ Paris 06, LPTHE, UPMC, Paris, France. EM cacciari@lpthe.jussieu.fr; salam@lpthe.jussieu.fr; gsoyez@quark.phy.bnl.gov NR 36 TC 175 Z9 175 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 005 PG 46 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900005 ER PT J AU Carena, M Han, T Huang, GY Wagner, CEM AF Carena, Marcela Han, Tao Huang, Gui-Yu Wagner, Carlos E. M. TI Higgs signal for h -> aa at hadron colliders SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE beyond standard model; Higgs physics ID CROSS-SECTIONS; BOSONS; MSSM; SEARCHES; LEP; COLLISIONS; MODELS AB We assess the prospect of observing a neutral Higgs boson at hadron colliders in its decay to two spin-zero states, a, for a Higgs mass of 90 - 130 GeV, when produced in association with a W or Z boson. Such a decay is allowed in extensions of the MSSM with CP-violating interactions and in the NMSSM, and can dominate Higgs boson final states, thereby evading the LEP constraints on standard Higgs boson production. The light spin-zero state decays primarily via a --> b ($) over barb and tau(+)tau(-), so this signal channel retains features distinct from the main backgrounds. Our study shows that at the Tevatron, there may be potential to observe a few events in the b (b) over bar tau(+)tau(-) or b (b) over barb (b) over bar channels with relatively small background, although this observation would be statistically limited. At the LHC, the background problem is more severe, but with cross sections and integrated luminosities orders of magnitude larger than at the Tevatron, the observation of a Higgs boson in this decay mode would be possible. The channel h --> aa --> b (b) over barb (b) over bar would provide a large statistical significance, with a signal-to-background ratio on the order of 1 : 2. In these searches, the main challenge would be to retain the adequate tagging efficiency of b's and tau's in the low p(T) region. C1 [Carena, Marcela] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Han, Tao; Huang, Gui-Yu] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. [Wagner, Carlos E. M.] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA. [Wagner, Carlos E. M.] Univ Chicago, Enrico Fermi Inst, Dept Phys, Chicago, IL 60637 USA. [Wagner, Carlos E. M.] Univ Chicago, Kavli Inst Cosmol Phys, Dept Phys, Chicago, IL 60637 USA. RP Carena, M (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM carena@fnal.gov; than@hep.wisc.edu; ghuang@hep.wisc.edu; cwagner@hep.anl.gov NR 38 TC 51 Z9 51 U1 1 U2 3 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 092 DI 10.1088/1126-6708/2008/04/092 PG 19 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900092 ER PT J AU Creutz, M AF Creutz, Michael TI Four-dimensional graphene and chiral fermions SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE lattice gauge field theories; lattice QCD; chiral lagrangians ID LATTICE FERMIONS AB Motivated by the description of the graphene electronic structure in terms of the relativistic Dirac equation, a generalization to four dimensions yields a strictly local fermion action describing two species and possessing an exact chiral symmetry. This is the minimum number of species required by the well known "no- go" theorems. C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Creutz, M (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. EM creutz@bnl.gov NR 14 TC 41 Z9 41 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 017 PG 9 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900017 ER PT J AU Giele, WT Kunszt, Z Melnikov, K AF Giele, Walter T. Kunszt, Zoltan Melnikov, Kirill TI Full one-loop amplitudes from tree amplitudes SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE NLO computations; QCD ID SUPER-YANG-MILLS; HELICITY AMPLITUDES; FERMION PROCESSES; CHARGED-CURRENT; UNITARITY; REGULARIZATION; SINGULARITIES; SCATTERING; GLUONS; LEVEL AB We establish an efficient polynomial-complexity algorithm for one-loop calculations, based on generalized D-dimensional unitarity. It allows automated computations of both cut-constructible and rational parts of one-loop scattering amplitudes from on-shell tree amplitudes. We illustrate the method by (re)-computing all four-, five- and six-gluon scattering amplitudes in QCD at one-loop. C1 [Giele, Walter T.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Kunszt, Zoltan] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland. [Melnikov, Kirill] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA. RP Giele, WT (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM giele@fnal.gov; kunszt@itp.phys.ethz.ch; kirill@phys.hawaii.edu RI Kunszt, Zoltan/G-3420-2013 NR 48 TC 120 Z9 120 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 049 DI 10.1088/1126-6708/2008/04/049 PG 23 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900049 ER PT J AU Gimon, EG AF Gimon, Eric G. TI Black ring deconstruction SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE D-branes; black holes in string theory; black holes ID HOLES AB We present a sample microstate for a black ring in four and five dimensional language. The microstate consists of a black string microstate with an additional D6-brane. We show that with an appropriate choice of parameters the piece involving the black string microstate falls down a long AdS throat, whose M-theory lift is AdS(3) x S-2. We wrap a spinning dipole M2-brane on the S-2 in the probe approximation. In IIA, this corresponds to a dielectric D2-brane carrying only D0-charge. We conjecture this is the first approximation to a cloud of D0-branes blowing up due to their non-abelian degrees of freedom and the Myers effect. C1 [Gimon, Eric G.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Gimon, Eric G.] LBNL, Theoret Phys Grp, Berkeley, CA 94720 USA. RP Gimon, EG (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM eggimon@lbl.gov NR 18 TC 16 Z9 16 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 098 PG 12 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900098 ER PT J AU Lillie, B Shu, J Tait, TMP AF Lillie, Ben Shu, Jing Tait, Tim M. P. TI Top compositeness at the Tevatron and LHC SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE beyond standard model; heavy quark physics; technicolor and composite models ID QUARK PRODUCTION; MASS HIERARCHY; MODEL; SYMMETRY; PHYSICS AB We explore the possibility that the right-handed top quark is composite. We examine the consequences that compositeness would have on t (t) over bar production at the Tevatron, and derive a weak constraint on the scale of compositeness of order a few hundred GeV from the t (t) over bar inclusive cross section. More detailed studies of differential properties of t (t) over bar production could potentially improve this limit. We find that a composite top can result in an enhancement of the t (t) over bart (t) over bar production rate at the LHC (of as much as 10(3) compared to the Standatd Model four top rate). We explore observables which allow us to extract the four top rate from the backgrounds, and show that the LHC can either discover or constrain top compositeness for wide ranges of parameter space. C1 [Lillie, Ben; Shu, Jing; Tait, Tim M. P.] Argonne Natl Lab, Argonne, IL 60439 USA. [Lillie, Ben; Shu, Jing] Univ Chicago, Chicago, IL 60637 USA. [Tait, Tim M. P.] Northwestern Univ, Evanston, IL 60208 USA. RP Lillie, B (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM lillieb@uchicago.edu; jshu@uchicago.edu; tait@northwestern.edu OI Shu, Jing/0000-0001-6569-403X NR 48 TC 57 Z9 57 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD APR PY 2008 IS 4 AR 087 DI 10.1088/1126-6708/2008/04/087 PG 15 WC Physics, Particles & Fields SC Physics GA 298CB UT WOS:000255662900087 ER PT J AU Frank, P Carlson, EJ Carlson, RMK Hedman, B Hodgson, KO AF Frank, Patrick Carlson, Elaine J. Carlson, Robert M. K. Hedman, Britt Hodgson, Keith O. TI The uptake and fate of vanadyl ion in ascidian blood cells and a detailed hypothesis for the mechanism and location of biological vanadium reduction. A visible and X-ray absorption spectroscopic study SO JOURNAL OF INORGANIC BIOCHEMISTRY LA English DT Article DE vanadium; ascidians; reductase; X-ray; XAS; UV-Visible; reduction ID DENSITY-GRADIENT CENTRIFUGATION; PHALLUSIA-MAMMILLATA; MAGNETIC-PROPERTIES; CRYSTAL-STRUCTURES; SYDNEIENSIS-SAMEA; HENZE SOLUTION; EDGE STRUCTURE; CERATODES; TUNICATE; COMPLEXES AB Vanadium K-edge X-ray absorption spectroscopy (XAS) has been used to track the uptake and fate of VO(2+) ion in blood cells from Ascidia ceratodes, following exposure to dithiothreitol (DTT) or to DTT PIUS VO(2+). The full range of endogenous vanadium was queried by fitting the XAS of blood cells with the XAS spectra of model vanadium complexes. In cells exposed only to DTT, similar to 0.4% of a new V(111) species was found in a site similar to Na[V(edta)(H(2)O)]. With exposure to DTT and VO(2+), average intracellular [VO(aq)](2+) increased from 3% to 5%, and 6% of a new complexed form of vanadyl ion appeared evidencing a ligand array similar to[VO(edta)](2-). At the same time, the relative ratio of blood cell [V(H(2)O)(6)](3+) increased at the expense of [V(H(2)O)(5)(SO(4))(+) in a manner consistent with a significant increase in endogenous acidity. In new UV/Visible experiments, VO(2+) could be reduced to 7-coordinate [V(nta)(H(2)O)(3)] or [V(nta)(ida)](2-) with cysteine methyl ester in pH 6.5 solution. Ascorbate reduced [VO(edta)](2-) to 7-coordinate [V(edta)(H(2)O)(-), while [VO(trdta)](2-) was unreactive. These results corroborate the finding that the reductive EMF of VO(2+) is increased by the availability of a 7-coordinate V(III) product. Finally, a new and complete hypothesis is proposed for an ascidian vanadate reductase. The structure of the enzyme active site, the vanadate-vanadyl-vanadic reduction mechanism, the cellular locale, and elements of the regulatory machinery governing the biological reduction of vanadate and vanadyl ion by ascidians C1 [Frank, Patrick; Hedman, Britt; Hodgson, Keith O.] Stanford Univ, SLAC, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA. [Frank, Patrick] Stanford Univ, Dept Chem, Stanford, CA 94305 USA. [Carlson, Elaine J.] Buck Inst, Novato, CA 94945 USA. [Carlson, Robert M. K.] Chevron Petr Technol Co, Richmond, CA 94802 USA. RP Frank, P (reprint author), Stanford Univ, SLAC, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA. EM frank@ssrl.slac.stanford.edu FU NCRR NIH HHS [P41 RR001209-28, RR001209, P41 RR001209, RR-01209] NR 78 TC 24 Z9 25 U1 1 U2 10 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0162-0134 J9 J INORG BIOCHEM JI J. Inorg. Biochem. PD APR PY 2008 VL 102 IS 4 BP 809 EP 823 DI 10.1016/j.jinorgbio.2007.12.001 PG 15 WC Biochemistry & Molecular Biology; Chemistry, Inorganic & Nuclear SC Biochemistry & Molecular Biology; Chemistry GA 290OG UT WOS:000255131500024 PM 18234345 ER PT J AU Blair, R Dawson, J Drake, G Haberichter, W Schlereth, J Zhang, J Abolins, M Ermoline, Y Pope, B AF Blair, R. Dawson, J. Drake, G. Haberichter, W. Schlereth, J. Zhang, J. Abolins, M. Ermoline, Y. Pope, B. TI The ATLAS high level trigger region of interest builder SO JOURNAL OF INSTRUMENTATION LA English DT Article DE digital electronic circuits; data acquisition circuits; trigger concepts and systems (hardware and software) AB This article describes the design, testing and production of the ATLAS Region of Interest Builder (RoIB). This device acts as an interface between the Level 1 trigger and the high level trigger (HLT) farm for the ATLAS LHC detector. It distributes all of the Level 1 data for a subset of events to a small number of (16 or less) individual commodity processors. These processors in turn provide this information to the HLT. This allows the HLT to use the Level 1 information to narrow data requests to areas of the detector where Level 1 has identified interesting objects. C1 [Blair, R.; Dawson, J.; Drake, G.; Haberichter, W.; Schlereth, J.; Zhang, J.] Argonne Natl Lab, Argonne, IL 60439 USA. [Abolins, M.; Ermoline, Y.; Pope, B.] Michigan State Univ, E Lansing, MI 48824 USA. RP Blair, R (reprint author), Argonne Natl Lab, 9700 S Casse Ave, Argonne, IL 60439 USA. EM reb@anl.gov NR 3 TC 7 Z9 7 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1748-0221 J9 J INSTRUM JI J. Instrum. PD APR PY 2008 VL 3 AR P04001 DI 10.1088/1748-0221/3/04/P04001 PG 14 WC Instruments & Instrumentation SC Instruments & Instrumentation GA 311SG UT WOS:000256619300001 ER PT J AU Catanesi, MG Radicioni, E Edgecock, R Ellis, M Soler, FJP Gossling, C Bunyatov, S Krasnoperov, A Popov, B Serdiouk, V Tereschenko, V Di Capua, E Vidal-Sitjes, G Artamonov, A Giani, S Gilardoni, S Gorbunov, P Grant, A Grossheim, A Ivanchenko, V Kayis-Topaksu, A Panman, J Papadopoulos, I Tcherniaev, E Tsukerman, I Veenhof, R Wiebusch, C Zucchelli, P Blondel, A Borghi, S Morone, MC Prior, G Schroeter, R Meurer, C Gastaldi, U Mills, GB Graulich, JS Gregoire, G Bonesini, M Ferri, F Kirsanov, M Bagulya, A Grichine, V Polukhina, N Palladino, V Coney, L Schmitz, D Barr, G De Santo, A Bobisut, F Gibin, D Guglielmi, A Mezzetto, M Dumarchez, J Dore, U Orestano, D Pastore, F Tonazzo, A Tortora, L Booth, C Howlett, L Bogomilov, M Chizhov, M Kolev, D Tsenov, R Piperov, S Temnikov, P Apollonio, M Chimenti, P Giannini, G Burguet-Castell, J Cervera-Villanueva, A Gomez-Cadenas, JJ Martin-Albo, J Novella, P Sorel, M AF Catanesi, M. G. Radicioni, E. Edgecock, R. Ellis, M. Soler, F. J. P. Goessling, C. Bunyatov, S. Krasnoperov, A. Popov, B. Serdiouk, V. Tereschenko, V. Di Capua, E. Vidal-Sitjes, G. Artamonov, A. Giani, S. Gilardoni, S. Gorbunov, P. Grant, A. Grossheim, A. Ivanchenko, V. Kayis-Topaksu, A. Panman, J. Papadopoulos, I. Tcherniaev, E. Tsukerman, I. Veenhof, R. Wiebusch, C. Zucchelli, P. Blondel, A. Borghi, S. Morone, M. C. Prior, G. Schroeter, R. Meurer, C. Gastaldi, U. Mills, G. B. Graulich, J. S. Gregoire, G. Bonesini, M. Ferri, F. Kirsanov, M. Bagulya, A. Grichine, V. Polukhina, N. Palladino, V. Coney, L. Schmitz, D. Barr, G. De Santo, A. Bobisut, F. Gibin, D. Guglielmi, A. Mezzetto, M. Dumarchez, J. Dore, U. Orestano, D. Pastore, F. Tonazzo, A. Tortora, L. Booth, C. Howlett, L. Bogomilov, M. Chizhov, M. Kolev, D. Tsenov, R. Piperov, S. Temnikov, P. Apollonio, M. Chimenti, P. Giannini, G. Burguet-Castell, J. Cervera-Villanueva, A. Gomez-Cadenas, J. J. Martin-Albo, J. Novella, P. Sorel, M. TI Absolute momentum calibration of the HARP TPC SO JOURNAL OF INSTRUMENTATION LA English DT Article DE time projection chambers; detector alignment and calibration methods (lasers, sources, particle-beams) ID PRODUCTION CROSS-SECTION; LARGE-ANGLE PRODUCTION; GEV/C PROTONS; POSITIVE PIONS; CHARGED PIONS; CERN PS; DETECTOR; PERFORMANCE; BERYLLIUM; TARGETS AB In the HARP experiment the large-angle spectrometer is using a cylindrical TPC as main tracking and particle identification detector. The momentum scale of reconstructed tracks in the TPC is the most important systematic error for the majority of kinematic bins used for the HARP measurements of the double-differential production cross-section of charged pions in proton interactions on nuclear targets at large angle. The HARP TPC operated with a number of hardware shortfalls and operational mistakes. Thus it was important to control and characterize its momentum calibration. While it was not possible to enter a direct particle beam into the sensitive volume of the TPC to calibrate the detector, a set of physical processes and detector properties were exploited to achieve a precise calibration of the apparatus. In the following we recall the main issues concerning the momentum measurement in the HARP TPC, and describe the crosschecks made to validate the momentum scale. As a conclusion, this analysis demonstrates that the measurement of momentum is correct within the published precision of 3%. C1 [Bobisut, F.; Gibin, D.; Guglielmi, A.; Mezzetto, M.] Univ Padua, Padua, Italy. [Bobisut, F.; Gibin, D.; Guglielmi, A.; Mezzetto, M.] Sezione Ist Nazl Fis Nucl, Padua, Italy. [Catanesi, M. G.; Radicioni, E.] Univ Bari, Bari, Italy. [Catanesi, M. G.; Radicioni, E.] Sezione Ist Nazl Fis Nucl, Bari, Italy. [Edgecock, R.; Ellis, M.; Soler, F. J. P.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Goessling, C.] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany. [Bunyatov, S.; Krasnoperov, A.; Popov, B.; Serdiouk, V.; Tereschenko, V.] Joint Inst Nucl Res Dubna, Dubna, Russia. [Di Capua, E.; Vidal-Sitjes, G.] Univ Ferrara, I-44100 Ferrara, Italy. [Di Capua, E.; Vidal-Sitjes, G.] Sezione Ist Nazl Fis Nucl, Ferrara, Italy. [Artamonov, A.; Giani, S.; Gilardoni, S.; Gorbunov, P.; Grant, A.; Grossheim, A.; Ivanchenko, V.; Kayis-Topaksu, A.; Panman, J.; Papadopoulos, I.; Tcherniaev, E.; Tsukerman, I.; Veenhof, R.; Wiebusch, C.; Zucchelli, P.] CERN, Geneva, Switzerland. [Blondel, A.; Borghi, S.; Morone, M. C.; Prior, G.; Schroeter, R.] Univ Geneva, Sect Phys, CH-1211 Geneva 4, Switzerland. [Meurer, C.] Forschungszentrum Karlsruhe, Inst Phys, Karlsruhe, Germany. [Gastaldi, U.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy. [Mills, G. B.] Los Alamos Natl Lab, Los Alamos, NM USA. [Graulich, J. S.; Gregoire, G.] UCL, Inst Phys Nucl, Louvain, Belgium. [Bonesini, M.; Ferri, F.] Univ Milano Bicocca, Sez INFN Milano Bicocca, Milan, Italy. [Kirsanov, M.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Bagulya, A.; Grichine, V.; Polukhina, N.] Russian Acad Sci, PN Lebedev Phys Inst FIAN, Moscow, Russia. [Palladino, V.] Univ Naples Federico II, Naples, Italy. [Palladino, V.] Sezione Ist Nazl Fis Nucl, Naples, Italy. [Coney, L.; Schmitz, D.] Columbia Univ, New York, NY USA. [Barr, G.; De Santo, A.] Univ Oxford, Nucl & Astrophys Lab, Oxford OX1 2JD, England. [Dumarchez, J.] Univ Paris 06, LPNHE, Paris, France. [Dumarchez, J.] Univ Paris 07, Paris, France. [Dore, U.] Univ Roma La Sapienza, Rome, Italy. [Dore, U.] Sez INFN Roma 1, Rome, Italy. [Orestano, D.; Pastore, F.; Tonazzo, A.; Tortora, L.] Univ Roma, Rome, Italy. [Orestano, D.; Pastore, F.; Tonazzo, A.; Tortora, L.] Sez INFN Roma 3, Rome, Italy. [Booth, C.; Howlett, L.] Univ Sheffield, Dept Phys, Sheffield S10 2TN, S Yorkshire, England. [Bogomilov, M.; Chizhov, M.; Kolev, D.; Tsenov, R.] Sofia Univ St Kliment Ohridski, Fac Phys, Sofia, Bulgaria. [Piperov, S.; Temnikov, P.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria. [Apollonio, M.; Chimenti, P.; Giannini, G.] Univ Trieste, Trieste, Italy. [Apollonio, M.; Chimenti, P.; Giannini, G.] Sezione Ist Nazl Fis Nucl, Trieste, Italy. [Burguet-Castell, J.; Cervera-Villanueva, A.; Gomez-Cadenas, J. J.; Martin-Albo, J.; Novella, P.; Sorel, M.] Univ Valencia, E-46003 Valencia, Spain. RP Mezzetto, M (reprint author), Univ Padua, Padua, Italy. EM Mauro.Mezzetto@pd.infn.it RI Booth, Christopher/B-5263-2016; Gomez Cadenas, Juan Jose/L-2003-2014; Grichine, Vladimir/M-8526-2015; Polukhina, Natalia/E-1610-2014; Soler, Paul/E-8464-2011; Tcherniaev, Evgueni/G-3453-2016; Morone, Maria Cristina/P-4407-2016; Temnikov, Petar/L-6999-2016; Graulich, Jean-Sebastien/B-4806-2009; Chimenti, Pietro/F-9898-2012; Wiebusch, Christopher/G-6490-2012; Prior, Gersende/I-8191-2013; Bagulya, Alexander/D-4273-2014; Novella, Pau/K-2845-2014 OI Prior, Gersende/0000-0002-6058-1420; Booth, Christopher/0000-0002-6051-2847; Sorel, Michel/0000-0003-2141-9508; Martin-Albo, Justo/0000-0002-7318-1469; Schmitz, David/0000-0003-2165-7389; Gomez Cadenas, Juan Jose/0000-0002-8224-7714; Soler, Paul/0000-0002-4893-3729; Tcherniaev, Evgueni/0000-0002-3685-0635; Morone, Maria Cristina/0000-0002-0200-0632; Temnikov, Petar/0000-0002-9559-3384; Chimenti, Pietro/0000-0002-9755-5066; Wiebusch, Christopher/0000-0002-6418-3008; Novella, Pau/0000-0002-0923-3172 NR 18 TC 9 Z9 9 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1748-0221 J9 J INSTRUM JI J. Instrum. PD APR PY 2008 VL 3 AR P04007 DI 10.1088/1748-0221/3/04/P04007 PG 25 WC Instruments & Instrumentation SC Instruments & Instrumentation GA 311SG UT WOS:000256619300007 ER PT J AU Barrentine, EM Timbie, PT Stevenson, TR Ali, S Chervenak, JA Wollack, E Moseley, SH Allen, CA Hseih, WT Miller, TM Benford, DJ Brown, AD AF Barrentine, E. M. Timbie, P. T. Stevenson, T. R. Ali, S. Chervenak, J. A. Wollack, E. Moseley, S. H. Allen, C. A. Hseih, W. T. Miller, T. M. Benford, D. J. Brown, A. D. TI Sensitivity measurements of a transition-edge hot-electron microbolometer for millimeter-wave astrophysical observations SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 12th International Workshop on Low Temperature Detectors CY JUL 22-27, 2007 CL Paris, FRANCE DE microbolometers; transition-edge sensors; cosmic microwave background; millimeter waves; hot-electron effect; transition-edge hot-electron microbolometer AB Future experiments to probe the Cosmic Microwave Background (CMB) polarization will need arrays of 1000s of sensitive bolometers. We are developing a Transition-edge Hot-electron Microbolometer (THM) to fill this need. This small-volume bolometer consists of a superconducting bilayer Transition-Edge Sensor (TES) with a thin-film absorber. Unlike traditional monolithic bolometers which make use of micromachined structures, the THM employs the decoupling between electrons and phonons at milliKelvin temperatures to provide thermal isolation. The devices are fabricated photolithographically and are easily integrated with antennas via microstrip transmission lines, and with SQUID readouts. We present the results of noise, responsivity, and thermal conductance measurements in which electrical power is dissipated in the absorber, and confirm a thermal model for a test THM with a Mo/Au TES and Bi/Au absorber. C1 [Barrentine, E. M.; Timbie, P. T.] Univ Wisconsin, Madison, WI 53706 USA. [Stevenson, T. R.; Chervenak, J. A.; Wollack, E.; Moseley, S. H.; Allen, C. A.; Hseih, W. T.; Miller, T. M.; Benford, D. J.; Brown, A. D.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Ali, S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Barrentine, EM (reprint author), Univ Wisconsin, Madison, WI 53706 USA. EM barrentine@wisc.edu RI Brown, Ari/B-1693-2008; Benford, Dominic/D-4760-2012; Moseley, Harvey/D-5069-2012; Wollack, Edward/D-4467-2012 OI Benford, Dominic/0000-0002-9884-4206; Wollack, Edward/0000-0002-7567-4451 NR 13 TC 7 Z9 7 U1 0 U2 3 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD APR PY 2008 VL 151 IS 1-2 BP 173 EP 179 DI 10.1007/s10909-007-9615-3 PG 7 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 270CP UT WOS:000253697900026 ER PT J AU Bailey, CN Ahmed, Z Akerib, DS Brink, PL Cabrera, B Castle, JP Cooley, J Danowski, ME Dragowsky, MR Filippini, J Grant, DR Hennings-Yeomans, R Mirabolfathi, N Novak, L Ogburn, RW Pyle, M Ruderman, J Sadoulet, B Schnee, RW Seitz, DN Serfass, B Sundqvist, KM Tomada, A Young, BA AF Bailey, C. N. Ahmed, Z. Akerib, D. S. Brink, P. L. Cabrera, B. Castle, J. P. Cooley, J. Danowski, M. E. Dragowsky, M. R. Filippini, J. Grant, D. R. Hennings-Yeomans, R. Mirabolfathi, N. Novak, L. Ogburn, R. W. Pyle, M. Ruderman, J. Sadoulet, B. Schnee, R. W. Seitz, D. N. Serfass, B. Sundqvist, K. M. Tomada, A. Young, B. A. TI Detector development for the next phases of the cryogenic dark matter search: Results from 1 inch Ge and Si detectors SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 12th International Workshop on Low Temperature Detectors CY JUL 22-27, 2007 CL Paris, FRANCE DE SuperCDMS; dark matter ID DEAD-LAYER AB The Cryogenic Dark Matter Search (CDMS) experiment is searching for Weakly Interacting Massive Particles (WIMPs) using detectors with the ability to discriminate between candidate (nuclear recoil) and background (electron recoil) events by measuring both phonon and ionization signals from recoils in the detector crystals. As CDMS scales up to greater WIMP sensitivity, it is necessary to increase the detector mass and further improve background discrimination. CDMS is engaged in ongoing fabrication and development of new detector designs in order to meet these criteria for the proposed SuperCDMS experiment. Thicker detector prototypes have been produced with new photolithographic masks. These masks have greater surface coverage of the quasi particle trap and transition edge sensor system to provide superior athermal phonon collection. Results from continuing laboratory tests are presented which already indicate improvement in discrimination parameters. C1 [Bailey, C. N.; Akerib, D. S.; Danowski, M. E.; Dragowsky, M. R.; Grant, D. R.; Hennings-Yeomans, R.; Schnee, R. W.] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA. [Ahmed, Z.] CALTECH, Dept Phys, Pasadena, CA 91125 USA. [Brink, P. L.; Cabrera, B.; Castle, J. P.; Cooley, J.; Novak, L.; Ogburn, R. W.; Pyle, M.; Ruderman, J.; Tomada, A.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. [Filippini, J.; Mirabolfathi, N.; Sadoulet, B.; Seitz, D. N.; Serfass, B.; Sundqvist, K. M.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Sadoulet, B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Young, B. A.] Santa Clara Univ, Dept Phys, Santa Clara, CA 95052 USA. RP Bailey, CN (reprint author), Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA. EM cathy@casino.case.edu RI Bailey, Catherine/C-6107-2009; Pyle, Matt/E-7348-2015 OI Pyle, Matt/0000-0002-3490-6754 NR 4 TC 4 Z9 4 U1 0 U2 1 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD APR PY 2008 VL 151 IS 1-2 BP 211 EP 215 DI 10.1007/s10909-007-9645-x PG 5 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 270CP UT WOS:000253697900033 ER PT J AU Chang, CL Carlstrom, JE Datesman, A Meyer, SS Novosad, V Yefremenko, VG Crawford, T Downes, T McMahon, J Miknaitis, K Vieira, JD AF Chang, Clarence L. Carlstrom, John E. Datesman, Aaron Meyer, Stephan S. Novosad, Valentyn Yefremenko, Volodymyr G. Crawford, Tom Downes, Tom McMahon, Jeff Miknaitis, Kathryn Vieira, Joaquin D. TI Design and fabrication of absorber coupled TES microbolometers on continuous Silicon-Nitride windows SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 12th International Workshop on Low Temperature Detectors CY JUL 22-27, 2007 CL Paris, FRANCE DE bolometers; TES; polarization ID TRANSITION-EDGE SENSORS; ELECTROTHERMAL FEEDBACK AB The implementation of TES based microbolometer arrays will achieve unprecedented sensitivities for mm and sub-mm astronomy through fabrication of large format arrays and improved linearity and stability arising from strong electro-thermal feedback. We report on progress in developing TES microbolometers using Mo/Au thin films and Au absorbing structures. We present measurements of suppressing the thermal conductance through the etching of features on a continuous Silicon-Nitride window. C1 [Chang, Clarence L.; Carlstrom, John E.; Meyer, Stephan S.; Crawford, Tom; Downes, Tom; McMahon, Jeff; Miknaitis, Kathryn; Vieira, Joaquin D.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Datesman, Aaron; Novosad, Valentyn; Yefremenko, Volodymyr G.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Chang, CL (reprint author), Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. EM clchang@kicp.uchicago.edu RI Novosad, Valentyn/C-2018-2014; Novosad, V /J-4843-2015 NR 11 TC 4 Z9 4 U1 0 U2 1 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD APR PY 2008 VL 151 IS 1-2 BP 245 EP 248 DI 10.1007/s10909-007-9639-8 PG 4 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 270CP UT WOS:000253697900039 ER PT J AU Friedrich, S AF Friedrich, S. TI Superconducting tunnel junction photon detectors: Theory and applications SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 12th International Workshop on Low Temperature Detectors CY JUL 22-27, 2007 CL Paris, FRANCE DE superconducting tunnel junctions; STJ X-ray detectors; spectrophotometry; S-Cam; X-ray absorption spectroscopy ID X-RAY-DETECTORS; ENERGY RESOLUTION; IMAGING SPECTROMETERS; NOISE; SPECTROSCOPY; PERFORMANCE; SCIENCE; RATIO AB Superconducting tunnel junctions (STJs) are being developed for photon and particle detection because they combine the high energy resolution of low temperature detector technologies with the high count rate capabilities of athermal devices. This makes them attractive sensors for applications in optical astronomy, synchrotron-based material science and biophysics, and plasma diagnostics. This review provides an overview about STJ design, operation and performance, and discusses some of the scientific applications that are currently driving STJ development. C1 Lawrence Livermore Natl Lab, Adv Detector Grp, Livermore, CA 94550 USA. RP Friedrich, S (reprint author), Lawrence Livermore Natl Lab, Adv Detector Grp, 7000 E Ave,L-188, Livermore, CA 94550 USA. EM friedrich1@llnl.gov NR 29 TC 9 Z9 9 U1 1 U2 5 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD APR PY 2008 VL 151 IS 1-2 BP 277 EP 286 DI 10.1007/s10909-007-9697-y PG 10 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 270CP UT WOS:000253697900045 ER PT J AU Chianetta, G Arnone, C Barbera, M Beeman, J Collura, A Lullo, G Perinati, E Silver, E AF Chianetta, G. Arnone, C. Barbera, M. Beeman, J. Collura, A. Lullo, G. Perinati, E. Silver, E. TI A fully planar approach to the construction of X-ray microcalorimeters with doped germanium sensors SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 12th International Workshop on Low Temperature Detectors CY JUL 22-27, 2007 CL Paris, FRANCE DE microcalorimeters; thermistors; germanium; X-ray ID NTD GERMANIUM AB We have investigated a fully planar technology for the development of arrays of X-ray microcalorimeters with doped germanium thermal sensor. We describe the proposed approach and show promising results obtained with the deep etching of germanium, the most critical step of the whole process. C1 [Chianetta, G.; Arnone, C.; Lullo, G.] Univ Palermo, Dip Ingn Electtr Elettron & Telecom, I-90128 Palermo, Italy. [Barbera, M.] Univ Palermo, Dipartimento Sci Fisiche & Astron, I-90123 Palermo, Italy. [Beeman, J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Beeman, J.; Collura, A.; Perinati, E.] Ist Nazl Astrofis, Osservat Astron Palermo GS Vaiana, I-90134 Palermo, Italy. [Silver, E.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. RP Chianetta, G (reprint author), Univ Palermo, Dip Ingn Electtr Elettron & Telecom, Vilae Sci,Edificio 9, I-90128 Palermo, Italy. EM Giovanni.chianetta@libero.it OI collura, alfonso/0000-0001-9534-1235; Barbera, Marco/0000-0002-3188-7420 NR 8 TC 1 Z9 1 U1 0 U2 2 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD APR PY 2008 VL 151 IS 1-2 BP 387 EP 393 DI 10.1007/s10909-007-9662-9 PG 7 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 270CP UT WOS:000253697900063 ER PT J AU O'Brient, R Ade, PAR Arnold, K Engargiola, G Holzapfel, W Lee, AT Myers, MJ Meng, XF Quealy, E Richards, PL Spieler, H Tran, HT AF O'Brient, R. Ade, P. A. R. Arnold, K. Engargiola, G. Holzapfel, W. Lee, A. T. Myers, M. J. Meng, X. F. Quealy, E. Richards, P. L. Spieler, H. Tran, H. T. TI A multi-band dual-polarized antenna-coupled TES bolometer SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 12th International Workshop on Low Temperature Detectors CY JUL 22-27, 2007 CL Paris, FRANCE DE antenna-coupled bolometer; transition edge sensor; sinuous antenna; log periodic antenna; CMB polarization AB We are developing multi-band dual-polarized antenna-coupled transition edge sensor (TES) bolometers for observing Cosmic Microwave Background (CMB) polarization anisotropies. We have designed a prototype pixel that uses a dual-polarized log-periodic antenna on a silicon hemispherical lens. Each polarization is coupled onto a separate microstrip transmission line. Microstrip filters are used to divide the broadband output of this antenna into a set of narrow frequency bands centered at 90, 150, and 220 GHz with bandwidths of 20%. We report on the fabrication of these devices as well as the initial optical testing. C1 [O'Brient, R.; Arnold, K.; Holzapfel, W.; Lee, A. T.; Myers, M. J.; Quealy, E.; Richards, P. L.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Ade, P. A. R.] Cardiff Univ, Sch Phys & Astron, Cardiff, Wales. [Engargiola, G.] Univ Calif Berkeley, Radio Astron Lab, Berkeley, CA 94720 USA. [Meng, X. F.] Univ Calif Berkeley, Dept Elect Engn, Berkeley, CA 94720 USA. [Spieler, H.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Tran, H. T.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. RP O'Brient, R (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. EM rogero@bolo.berkeley.edu RI Holzapfel, William/I-4836-2015 NR 9 TC 8 Z9 8 U1 0 U2 3 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD APR PY 2008 VL 151 IS 1-2 BP 459 EP 463 DI 10.1007/s10909-007-9698-x PG 5 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 270CP UT WOS:000253697900074 ER PT J AU Myers, MJ Arnold, K Ade, P Engargiola, G Holzapfel, W Lee, AT Meng, X O'Brient, R Richards, PL Spieler, H Tran, HT AF Myers, M. J. Arnold, K. Ade, P. Engargiola, G. Holzapfel, W. Lee, A. T. Meng, X. O'Brient, R. Richards, P. L. Spieler, H. Tran, H. T. TI Antenna-coupled bolometer arrays for measurement of the cosmic microwave background polarization SO JOURNAL OF LOW TEMPERATURE PHYSICS LA English DT Article; Proceedings Paper CT 12th International Workshop on Low Temperature Detectors CY JUL 22-27, 2007 CL Paris, FRANCE DE bolometer; antenna-coupled; CMB; polarization ID SLOT ANTENNA AB We are building antenna-coupled Transition Edge Sensor bolometer arrays to measure the polarization of the cosmic microwave background. 217 GHz prototype pixels have previously been characterized and showed promising performance (Myers et al. in Appl. Phys. Lett. 86:114103, 2005). Our design uses a double slot dipole antenna and an integrated microstrip band defining filter. New devices have been tested which include on-chip test structures to improve our understanding of detector performance and guide future development. In parallel with this, large arrays of bolometers based on the prototype pixel design have also been constructed. The array pixels are a heterogeneous mixture of single band pixels at 90 GHz, 150 GHz, and 220 GHz and now incorporate dual-polarization antennas (Chattopadhyay and Zmuidzinas in IEEE Trans. Antennas Propag. 46:736, 1998). Preliminary results from optical testing of array pixels are presented. These bolometer arrays will be used in the upcoming CMB polarization experiment Polarbear. C1 [Myers, M. J.; Arnold, K.; Holzapfel, W.; Lee, A. T.; O'Brient, R.; Richards, P. L.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94578 USA. [Ade, P.] Cardiff Univ, Sch Phys & Astron, Cardiff, Wales. [Engargiola, G.] Univ Calif Berkeley, Radio Astron Lab, Berkeley, CA 94720 USA. [Meng, X.] Univ Calif Berkeley, Dept Elect Engn, Berkeley, CA 94578 USA. [Spieler, H.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Tran, H. T.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. RP Myers, MJ (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94578 USA. EM mmyers@cosmology.berkeley.edu RI Holzapfel, William/I-4836-2015 NR 8 TC 9 Z9 9 U1 0 U2 3 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2291 J9 J LOW TEMP PHYS JI J. Low Temp. Phys. PD APR PY 2008 VL 151 IS 1-2 BP 464 EP 470 DI 10.1007/s10909-007-9678-1 PG 7 WC Physics, Applied; Physics, Condensed Matter SC Physics GA 270CP UT WOS:000253697900075 ER PT J AU Van Berkel, GJ Kertesz, V Koeplinger, KA Vavrek, M Kong, ANT AF Van Berkel, Gary J. Kertesz, Vilmos Koeplinger, Kenneth A. Vavrek, Marissa Kong, Ah-Ng Tony TI Liquid microjunction surface sampling probe electrospray mass spectrometry for detection of drugs and metabolites in thin tissue sections SO JOURNAL OF MASS SPECTROMETRY LA English DT Article DE surface-sampling probe; electrospray ionization; mass spectrometry; tissue section; reserpine; sulforaphane; metabolites ID IONIZATION DESI; ISOTHIOCYANATE SULFORAPHANE; C-14-LABELED SULFORAPHANE; AMBIENT CONDITIONS; BIOLOGICAL TISSUE; SYSTEM; DISCOVERY; DEVICE; RAT AB A self-aspirating, liquid microjunction surface sampling probe/electrospray emitter mass spectrometry. system was demonstrated for use in the direct analysis of spotted and dosed drugs and their metabolites in thin tissue sections. Proof-of-principle sampling and analysis directly from tissue without the need for sample preparation was demonstrated first by raster scanning a region on a section of rat liver onto which reserpine was spotted. The mass spectral signal from selected reaction monitoring was used to develop a chemical image of the spotted drug on the tissue. The probe was also used to selectively spot sample areas of sagittal whole-body tissue from a mouse that had been dosed orally (90 mg/kg) with R,S-sulforaphane 3 h prior to sacrifice. Sulforaphane and its glutathione and N-acetyl cysteine conjugates were monitored with selected reaction monitoring and detected in the stomach and various other tissues from the dosed mouse. No signal for these species was observed in the tissue from a control mouse. The same dosed-tissue section was used to illustrate the possibility of obtaining a lane scan across the whole-body section. In total, these results illustrate the potential for rapid screening of the distribution of drugs and metabolites in thin tissue sections with the liquid micro-junction surface sampling probe/electrospray mass spectrometry approach. Published in 2007 by John Wiley & Sons, Ltd. C1 [Van Berkel, Gary J.; Kertesz, Vilmos] Oak Ridge Natl Lab, Organ & Biol Mass Spectrometry Grp, Div Chem Sci, Oak Ridge, TN 37831 USA. [Koeplinger, Kenneth A.; Vavrek, Marissa] Merck Res Labs, West Point, PA 19486 USA. [Koeplinger, Kenneth A.; Kong, Ah-Ng Tony] Rutgers State Univ, Ernest Mario Sch Pharm, Dept Pharmaceut, Piscataway, NJ 08854 USA. RP Van Berkel, GJ (reprint author), Oak Ridge Natl Lab, Organ & Biol Mass Spectrometry Grp, Div Chem Sci, Oak Ridge, TN 37831 USA. EM vanberkelgj@ornl.gov RI Kertesz, Vilmos/M-8357-2016 OI Kertesz, Vilmos/0000-0003-0186-5797 FU NIEHS NIH HHS [P30 ES005022] NR 28 TC 73 Z9 73 U1 4 U2 35 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND SN 1076-5174 J9 J MASS SPECTROM JI J. Mass Spectrom. PD APR PY 2008 VL 43 IS 4 BP 500 EP 508 DI 10.1002/jms.1340 PG 9 WC Biophysics; Chemistry, Organic; Spectroscopy SC Biophysics; Chemistry; Spectroscopy GA 293RM UT WOS:000255352400009 PM 18035855 ER PT J AU Zhu, ZW Zheng, SJ Zhang, HF Ding, BZ Hu, ZQ Liaw, PK Wang, YD Ren, Y AF Zhu, Z. W. Zheng, S. J. Zhang, H. F. Ding, B. Z. Hu, Z. Q. Liaw, P. K. Wang, Y. D. Ren, Y. TI Plasticity of bulk metallic glasses improved by controlling the solidification condition SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID HIGH-STRENGTH; RANGE ORDER; ALLOYS; TEMPERATURE; LIQUID AB Different bulk metallic glasses (BMGs) were prepared in ductile Cu47.5Zr47.5Al5, Zr62Cu15.4Ni12.6Al10, and brittle Zr55Ni5Al10Cu30 alloys by controlling solidification conditions. The achieved micro structures were characterized by x-ray diffraction, differential scanning calorimetry, transmission electron microscopy, and synchrotron-based high-energy x-ray diffraction. Monolithic BMGs obtained by high-temperature injection casting are brittle, while BMGs bearing some nanocrystals with the size of 3 to 7 nm and 2 to 4 nm, obtained by low-temperature injection casting and in situ suction casting, respectively, exhibit good plasticity. It indicates that the microstructures of BMGs are closely affected by the solidification conditions. Controlling the solidification conditions could improve the plasticity of BMGs. C1 [Zhu, Z. W.; Zheng, S. J.; Zhang, H. F.; Ding, B. Z.; Hu, Z. Q.] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China. [Liaw, P. K.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Wang, Y. D.] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China. [Ren, Y.] Argonne Natl Lab, Adv Photon Source, Expt Facil Div, Argonne, IL 60439 USA. RP Zhang, HF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China. EM hfzhang@imr.ac.cn RI zheng, shijian/F-2453-2012; wang, yandong/G-9404-2013; Zhu, Zheng-Wang/D-2799-2017 NR 28 TC 35 Z9 38 U1 3 U2 21 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0884-2914 EI 2044-5326 J9 J MATER RES JI J. Mater. Res. PD APR PY 2008 VL 23 IS 4 BP 941 EP 948 DI 10.1557/JMR.2008.0127 PG 8 WC Materials Science, Multidisciplinary SC Materials Science GA 284DB UT WOS:000254684500009 ER PT J AU Bae, IT Zhang, YW Weber, WJ Ishimaru, M Hirotsu, Y Higuchi, M AF Bae, In-Tae Zhang, Yanwen Weber, William J. Ishimaru, Manabu Hirotsu, Yoshihiko Higuchi, Mikio TI Ionization-induced effects in amorphous apatite at elevated temperatures SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID SILICATE SINGLE-CRYSTALS; FLOATING-ZONE METHOD; IONIZING-RADIATION; ND-9.33(SIO4)(6)O-2; CERAMICS; GROWTH; WASTE AB Electron-beam-induced effects in preamorphized Sr2Nd8(SiO4)(6)O-2 were investigated in situ using transmission electron microscopy with 200-keV electrons at temperatures ranging from 380 to 780 K. Within the electron-irradiated area, epitaxial recrystallization was observed from the amorphous/crystalline interface toward the surface, with the rate of recrystallization increasing as temperature increased from 380 to 580 K. Structural contrast features (i.e., O deficient amorphous material), as well as recrystallization, were observed outside of the irradiation area at temperatures from 680 to 780 K. Ionization-induced processes and local nonstoichiometry induced by oxygen migration and desorption are possible mechanisms for the electron-beam-induced recrystallization and for the formation of the structural contrast features, respectively. C1 [Bae, In-Tae; Zhang, Yanwen; Weber, William J.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Ishimaru, Manabu; Hirotsu, Yoshihiko] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan. [Higuchi, Mikio] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan. RP Bae, IT (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM intae.bae@pnl.gov RI Weber, William/A-4177-2008 OI Weber, William/0000-0002-9017-7365 NR 26 TC 2 Z9 2 U1 1 U2 5 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA SN 0884-2914 EI 2044-5326 J9 J MATER RES JI J. Mater. Res. PD APR PY 2008 VL 23 IS 4 BP 962 EP 967 DI 10.1557/JMR.2008.0114 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA 284DB UT WOS:000254684500012 ER PT J AU Wang, J Hoagland, RG Misra, A AF Wang, Jian Hoagland, Richard G. Misra, Amit TI Phase transition and dislocation nucleation in Cu-Nb layered composites during physical vapor deposition SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID NANOLAYERED COMPOSITES; SCREW DISLOCATION; MULTILAYERS; MECHANISMS; INTERFACES; FILMS; SLIP; TRANSMISSION; SIMULATIONS; DIFFUSION AB Using classical molecular dynamics simulations, we have investigated the growth of {111} Cu on Nb {110} surface. Our results reveal that the deposited Cu layer initially grows as body-centered cubic (bcc) and Vernier misfits are observed in the interface of bee Cu and bee Nb. As it continues to grow, the bcc Cu {110} transforms into face-centered cubic (fcc) Cu{111}. The phase transition starts after the bcc Cu layer has accumulated about 3 monolayers and is finished depending on deposition parameters. Nuclei of fcc Cu {111} form in the top surface of Cu and grow in plane and toward the interface. Partial dislocations in the fcc Cu layer nucleate during the late stage of the transition, and the stacking faults grow as the Cu layer thickens. C1 [Wang, Jian; Hoagland, Richard G.; Misra, Amit] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RP Wang, J (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. EM wangj6@lanl.gov RI Misra, Amit/H-1087-2012; Hoagland, Richard/G-9821-2012; Wang, Jian/F-2669-2012 OI Wang, Jian/0000-0001-5130-300X NR 30 TC 21 Z9 21 U1 0 U2 7 PU MATERIALS RESEARCH SOC PI WARRENDALE PA 506 KEYSTONE DR, WARRENDALE, PA 15086 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD APR PY 2008 VL 23 IS 4 BP 1009 EP 1014 DI 10.1557/JMR.2008.0120 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA 284DB UT WOS:000254684500018 ER PT J AU Lee, TA Stanek, CR McClellan, KJ Mitchell, JN Navrotsky, A AF Lee, Theresa A. Stanek, Christopher R. McClellan, Kenneth J. Mitchell, Jeremy N. Navrotsky, Alexandra TI Enthalpy of formation of the cubic fluorite phase in the ceria-zirconia system SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID YTTRIA-STABILIZED ZIRCONIA; X-RAY-ABSORPTION; CEO2-ZRO2 SOLID-SOLUTIONS; OXYGEN STORAGE CAPACITY; INERT MATRIX FUEL; ZRO2-CEO2 SYSTEM; DOPED CERIA; ORDERED ARRANGEMENT; CRYSTAL-STRUCTURE; LOCAL-STRUCTURE AB The enthalpy of formation of cubic ceria-zirconia solid solutions (c-Ce(1-x)ZrxO2, 0.05 <= x <= 0.75) at 25 degrees C with respect to monoclinic zirconia (m-ZrO2) and cubic ceria (c-CeO2) has been measured by high-temperature oxide melt solution calorimetry. In contrast to fluorite solid solutions containing trivalent oxides (e.g., yttria-zirconia), mixing in c-Ce1-xZrxO2 shows moderate positive deviation from ideality. Evaluating the data within the framework of a regular solution model, the interaction parameter, Omega, is +51.0 +/- 8.0 kJ/mol. The introduction of undersized Zr into CeO2 severely distorts and destabilizes the oxygen sublattice. Destabilization of c-Ce(1-x)Z(x)O(2) may be relieved by reduction or clustering. A stable ordered compound in the CeO2-ZrO2 system is thermodynamically unlikely. C1 [Navrotsky, Alexandra] Univ Calif Davis, Peter A Rock Thermochem Lab & Nanomat Environm Ag, Org Res Unit, Davis, CA 95646 USA. [Lee, Theresa A.; Stanek, Christopher R.; McClellan, Kenneth J.; Mitchell, Jeremy N.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Navrotsky, A (reprint author), Univ Calif Davis, Peter A Rock Thermochem Lab & Nanomat Environm Ag, Org Res Unit, Davis, CA 95646 USA. EM anavrotsky@ucdavis.edu OI Mitchell, Jeremy/0000-0001-7109-3505 NR 62 TC 11 Z9 11 U1 2 U2 13 PU MATERIALS RESEARCH SOC PI WARRENDALE PA 506 KEYSTONE DR, WARRENDALE, PA 15086 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD APR PY 2008 VL 23 IS 4 BP 1105 EP 1112 DI 10.1557/JMR.2008.0143 PG 8 WC Materials Science, Multidisciplinary SC Materials Science GA 284DB UT WOS:000254684500032 ER PT J AU Berchane, NS Andrews, MJ Kerr, S Slater, NKH Jebrail, FF AF Berchane, N. S. Andrews, M. J. Kerr, S. Slater, N. K. H. Jebrail, F. F. TI On the mechanical properties of bovine serum albumin (BSA) adhesives SO JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE LA English DT Article; Proceedings Paper CT 21st European Conference on Biomaterials CY SEP 09-13, 2007 CL Brighton, ENGLAND ID BIOGLUE SURGICAL ADHESIVE; RESORCINOL-FORMALIN GLUE; CARDIAC BIOPROSTHESES; CYANOACRYLATE; DURABILITY; SURGERY; SUTURES AB Biological adhesives, natural and synthetic, are of current active interest. These adhesives offer significant advantages over traditional sealant techniques, in particular, they are easier to use, and can play an integral part in the healing mechanism of tissue. Thus, biological adhesives can play a major role in medical applications if they possess adequate mechanical behavior and stability over time. In this work, we report on the method of preparation of bovine serum albumin (BSA) into a biological adhesive. We present quantitative measurements that show the effect of BSA concentration and cross-linker content on the bonding strength of BSA adhesive to wood. A comparison is then made with synthetic poly(glycidyl methacrylate) (PGMA) adhesive, and a commercial cyanoacrylate glue, which was used as a control adhesive. In addition, BSA samples were prepared and characterized for their water content, tensile strength, and elasticity. We show that on dry surface, BSA adhesive exhibits a high bonding strength that is comparable with non-biological commercial cyanoacrylate glues, and synthetic PGMA adhesive. Tensile testing on wet wood showed a slight increase in the bonding strength of BSA adhesive, a considerable decrease in the bonding strength of cyanoacrylate glue, and negligible adhesion of PGMA. Tests performed on BSA samples demonstrate that initial BSA concentration and final water content have a significant effect on the stress-strain behavior of the samples. C1 [Andrews, M. J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Berchane, N. S.] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. [Kerr, S.; Slater, N. K. H.] Univ Cambridge, Dept Chem Engn, Cambridge, England. RP Andrews, MJ (reprint author), Los Alamos Natl Lab, Mil Stop D413 1663, Los Alamos, NM 87545 USA. EM mandrews@lanl.gov NR 23 TC 8 Z9 8 U1 2 U2 8 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0957-4530 J9 J MATER SCI-MATER M JI J. Mater. Sci.-Mater. Med. PD APR PY 2008 VL 19 IS 4 BP 1831 EP 1838 DI 10.1007/s10856-007-3360-7 PG 8 WC Engineering, Biomedical; Materials Science, Biomaterials SC Engineering; Materials Science GA 274BG UT WOS:000253976200051 PM 18197367 ER PT J AU Jordan, J Jasiuk, I Zubelewicz, A AF Jordan, Jeffrey Jasiuk, Iwona Zubelewicz, Aleksander TI Concentrated force acting on a power law creep half-plane SO JOURNAL OF MECHANICS OF MATERIALS AND STRUCTURES LA English DT Article DE concentrated force; power-law material; creep; viscous material; incompressible material ID GRADIENT ELASTICITY; FLAMANT PROBLEM; POINT LOAD; BOUNDARY; SPACE AB The problem of concentrated force acting on a half-plane made of a power-law creep material is solved analytically. In our approach, the constitutive equation that describes the process of dilatational deformation is omitted. The incomplete material description is used for constructing a solution by bringing the dilatational deformation to zero and, in this manner, making the material incompressible. We find solutions for two cases; one solution is for a linear viscous material, while the second is for a power-law material where the power exponent is equal to three. Solutions of the two problems are found to be very different. While the linear viscous solution is found to be the same as the linear elastic solution, the nonlinear solution is found to be significantly different. This result may give rise to a new experimental technique for characterization of materials with a nonlinear creep behavior. C1 [Jordan, Jeffrey] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA. [Jasiuk, Iwona] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA. [Zubelewicz, Aleksander] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Jordan, J (reprint author), Georgia Inst Technol, George W Woodruff Sch Mech Engn, 801 Ferst Dr, Atlanta, GA 30332 USA. EM j11mjordan@yahoo.com; ijasiuk@uiuc.edu; alek@lanl.gov RI Jasiuk, Iwona/A-7796-2014 OI Jasiuk, Iwona/0000-0001-9663-4734 NR 18 TC 0 Z9 0 U1 0 U2 2 PU MATHEMATICAL SCIENCE PUBL PI BERKELEY PA UNIV CALIFORNIA, DEPT MATHEMATICS, BERKELEY, CA 94720-3840 USA SN 1559-3959 J9 J MECH MATER STRUCT JI J. Mech. Mater. Struct. PD APR PY 2008 VL 3 IS 4 BP 697 EP 705 DI 10.2140/jomms.2008.3.697 PG 9 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA 309CT UT WOS:000256439000007 ER PT J AU Gabitto, J Tsouris, C AF Gabitto, Jorge Tsouris, Costas TI Hydrogen transport in composite inorganic membranes SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE composite inorganic membranes; hydrogen separation; gas separation ID POROUS SUPPORT LAYER; BINARY GAS-MIXTURES; STAINLESS-STEEL; PALLADIUM; PERMEATION; SEPARATION AB A theoretical model simulating hydrogen transport through composite inorganic membranes is proposed. This model simulates operation of membranes made of three or more porous or metallic layers. Transport through Pd-alloy metallic layers is simulated using a comprehensive model proposed by Ward and Dao. The model accounts for external mass transfer, surface adsorption and desorption, transport to and from the bulk metal. and diffusion within the metal. Transport through porous ceramic layers is simulated following Burggraaf, who proposed an expression that combines viscous flow, Knudsen diffusion, and transition flow through porous media of complex geometrical structure. The model can also use experimentally determined permeance data when available. The theoretical model has been computationally implemented. Computations show very good agreement with experimental data available in the literature. The proposed model predicts hydrogen fluxes through composite membranes of several lavers for standard operating conditions. The model can also predict which of the several layers used in manufacturing the membrane is controlling the total hydrogen flux. This information can be used to determine optimal thickness values for metallic and porous layers. (C) 2008 Elsevier B.V. All rights reserved. C1 [Gabitto, Jorge; Tsouris, Costas] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Gabitto, Jorge] Prairie View A & M Univ, Dept Chem Engn, Prairie View, TX 77446 USA. [Tsouris, Costas] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA. RP Tsouris, C (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM tsourisc@ornl.gov RI Tsouris, Costas/C-2544-2016 OI Tsouris, Costas/0000-0002-0522-1027 NR 29 TC 14 Z9 15 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0376-7388 J9 J MEMBRANE SCI JI J. Membr. Sci. PD APR 1 PY 2008 VL 312 IS 1-2 BP 132 EP 142 DI 10.1016/j.memsci.2007.12.061 PG 11 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 285ZE UT WOS:000254813900016 ER PT J AU Sundaram, A Maddela, M Ramadoss, R Feldner, LM AF Sundaram, Ananth Maddela, Madhurima Ramadoss, Ramesh Feldner, Lucas M. TI MEMS-based electronically steerable antenna array fabricated using PCB technology SO JOURNAL OF MICROELECTROMECHANICAL SYSTEMS LA English DT Article DE Kapton polyimide film; MEMS-based electronically steerable antenna array (ESA); MEMS phase shifters; printed circuit board (PCB) MEMS; slot antenna ID CAPACITIVE SWITCHES AB In this paper, a MEMS-based electronically steerable antenna array (ESA) fabricated using printed circuit processing techniques is reported. A Kapton polyimide film is used as the structural layer for fabricating MEMS varactors. The MEMS varactors have been used in the bistable mode to design loaded-line-type MEMS phase shifters. These MEMS phase shifters have been monolithically integrated with the ESA on a Duroid substrate using printed circuit processing techniques. For proof-of-concept demonstration of the proposed MEMS-based ESA, a 3-bit MEMS phase shifter has been monolithically integrated with a two-element double-folded slot-antenna array on a Duroid substrate. An X-band ESA prototype with a beam steering angle of 20 degrees at 9.1 GHz is presented. C1 [Sundaram, Ananth] IBM Corp, Compact Modeling Grp, Bangalore 560071, Karnataka, India. [Maddela, Madhurima; Ramadoss, Ramesh] Auburn Univ, Dept Elect Engn, Auburn, AL 36849 USA. [Ramadoss, Ramesh] FormFactor Inc, MEMS R&D Div, Livermore, CA 94551 USA. [Feldner, Lucas M.] Elect Syst Ctr, Sandia Natl Labs, Albuquerque, NM 87123 USA. RP Sundaram, A (reprint author), IBM Corp, Compact Modeling Grp, Bangalore 560071, Karnataka, India. EM ananthsund@gmail.com; maddema@auburn.edu; ramadra@auburn.edu; lmfeldn@sandia.gov NR 24 TC 16 Z9 16 U1 2 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 1057-7157 J9 J MICROELECTROMECH S JI J. Microelectromech. Syst. PD APR PY 2008 VL 17 IS 2 BP 356 EP 362 DI 10.1109/JMEMS.2008.916291 PG 7 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Instruments & Instrumentation; Physics, Applied SC Engineering; Science & Technology - Other Topics; Instruments & Instrumentation; Physics GA 345KV UT WOS:000258996600013 ER PT J AU Sepulveda, N Lu, J Aslam, DM Sullivan, JP AF Sepulveda, Nelson Lu, Jing Aslam, Dean M. Sullivan, John P. TI High-performance polycrystalline diamond micro- and nanoresonators SO JOURNAL OF MICROELECTROMECHANICAL SYSTEMS LA English DT Article; Proceedings Paper CT 19th IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2006) CY JAN 22-26, 2006 CL Istanbul, TURKEY SP IEEE, Robot & Automat Soc DE energy dissipation; MEMS cantilever beams; polycrystalline diamond MEMS resonator; quality factor; RFMEMS ID Q MICROMECHANICAL RESONATORS; NANOCRYSTALLINE-DIAMOND; TEMPERATURE; TECHNOLOGY; OSCILLATORS; DISSIPATION; CANTILEVERS AB Cantilever type MEMS resonators were fabricated using boron-doped (similar to 5 x 10(19) cm(-3)) and undoped polycrystalline diamond (poly-C) films that were grown at 600 degrees C or 780 degrees C. The resonator dimensions ranged from 500 mu m long, 10 mu m wide, and 0.7 mu m thick to 40 mu m long, 100 nm wide, and 0.6 mu m thick. Resonance frequencies and quality factors Qs were measured in vacuum, 10(-5) torr, over the temperature range of 23 degrees C-400 degrees C. The measured values of the temperature coefficient of the resonance frequency were in the range of -17.2-25.6 ppm (.) degrees C(-1) and seemed to be related to changes in the Young's modulus with temperature. Undoped poly-C cantilevers exhibit Qs as high as 116000, the highest value reported for a cantilever resonator fabricated from a polycrystalline film. A thermally activated relaxation process seems to limit the measured Q-values for the highly doped poly-C samples. C1 [Sepulveda, Nelson] Univ Puerto Rico, Dept Elect & Comp Engn, Mayaguez, PR 00681 USA. [Lu, Jing; Aslam, Dean M.] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA. [Sullivan, John P.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Sepulveda, N (reprint author), Univ Puerto Rico, Dept Elect & Comp Engn, Mayaguez, PR 00681 USA. EM aslam@msu.edu RI Sepulveda, Nelson/E-6536-2011 OI Sepulveda, Nelson/0000-0002-9676-8529 NR 34 TC 21 Z9 21 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1057-7157 J9 J MICROELECTROMECH S JI J. Microelectromech. Syst. PD APR PY 2008 VL 17 IS 2 BP 473 EP 482 DI 10.1109/JMEMS.2008.918409 PG 10 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Instruments & Instrumentation; Physics, Applied SC Engineering; Science & Technology - Other Topics; Instruments & Instrumentation; Physics GA 345KV UT WOS:000258996600024 ER PT J AU Haberle, RC Fourcade, HM Boore, JL Jansen, RK AF Haberle, Rosemarie C. Fourcade, H. Matthew Boore, Jeffrey L. Jansen, Robert K. TI Extensive rearrangements in the chloroplast genome of Trachelium caeruleum are associated with repeats and tRNA genes SO JOURNAL OF MOLECULAR EVOLUTION LA English DT Article DE chloroplast genome evolution; genome rearrangements; repeated sequences; Trachelium caeruleum; Campanulaceae ID COMPLETE NUCLEOTIDE-SEQUENCE; LAND PLANTS; INVERTED REPEAT; PLASTID CHROMOSOME; DISPERSED REPEATS; STRUCTURAL REARRANGEMENTS; MULTIPLE INVERSIONS; WHEAT CTDNA; DNA; EVOLUTION AB Chloroplast genome organization, gene order, and content are highly conserved among land plants. We sequenced the chloroplast genome of Trachelium caeruleum L. (Campanulaceae), a member of an angiosperm family known for highly rearranged genomes. The total genome size is 162,321 bp, with an inverted repeat (IR) of 27,273 bp, large single-copy (LSC) region of 100,114 bp, and small single-copy (SSC) region of 7,661 bp. The genome encodes 112 different genes, with 17 duplicated in the IR, a tRNA gene (trnI-cau) duplicated once in the LSC region, and a protein-coding gene (psbJ) with two duplicate copies, for a total of 132 putatively intact genes. ndhK may be a pseudogene with internal stop codons, and clpP, ycf1, and ycf2 are so highly diverged that they also may be pseudogenes. ycf15, rpl23, infA, and accD are truncated and likely nonfunctional. The most conspicuous feature of the Trachelium genome is the presence of 18 internally unrearranged blocks of genes inverted or relocated within the genome relative to the ancestral gene order of angiosperm chloroplast genomes. Recombination between repeats or tRNA genes has been suggested as a mechanism of chloroplast genome rearrangements. The Trachelium chloroplast genome shares with Pelargonium and Jasminum both a higher number of repeats and larger repeated sequences in comparison to eight other angiosperm chloroplast genomes, and these are concentrated near rearrangement endpoints. Genes for tRNAs occur at many but not all inversion endpoints, so some combination of repeats and tRNA genes may have mediated these rearrangements. C1 [Haberle, Rosemarie C.] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA. [Haberle, Rosemarie C.; Fourcade, H. Matthew] Univ Texas Austin, Sect Integrat Biol, Austin, TX 78712 USA. [Haberle, Rosemarie C.; Fourcade, H. Matthew] Univ Texas Austin, Inst Cellular & Mol Biol, Austin, TX 78712 USA. [Fourcade, H. Matthew; Boore, Jeffrey L.] DOE Joint Genome Inst, Walnut Creek, CA 94598 USA. [Boore, Jeffrey L.] Genome Project Solut, Hercules, CA 94547 USA. RP Fourcade, HM (reprint author), Univ Calif Davis, Dept Plant Sci, Mail Stop 2, Davis, CA 95616 USA. EM rchaberle@ucdavis.edu RI Jansen, Robert/F-6272-2011 NR 68 TC 84 Z9 104 U1 4 U2 25 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-2844 J9 J MOL EVOL JI J. Mol. Evol. PD APR PY 2008 VL 66 IS 4 BP 350 EP 361 DI 10.1007/s00239-008-9086-4 PG 12 WC Biochemistry & Molecular Biology; Evolutionary Biology; Genetics & Heredity SC Biochemistry & Molecular Biology; Evolutionary Biology; Genetics & Heredity GA 297PZ UT WOS:000255629900004 PM 18330485 ER PT J AU Kirkpatrick, R Masiello, T Jariyasopit, N Weber, A Nibler, JW Maki, A Blake, TA Hubler, T AF Kirkpatrick, Robynne Masiello, Tony Jariyasopit, Narumol Weber, Alfons Nibler, Joseph W. Maki, Arthur Blake, Thomas A. Hubler, Timothy TI High resolution infrared spectroscopy of [1.1.1]propellane SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article DE propellane; high-resolution infrared spectrum; ground state structure and rotational constants; ab initio DFT study; anharmonic frequencies ID ELECTRON MOMENTUM SPECTROSCOPY; SMALL-RING PROPELLANES; MOLECULAR-STRUCTURE; VIBRATIONAL-SPECTRUM; <1.1.1>PROPELLANE; CARBON; BICYCLO<1.1.1>PENTANE; ENERGY; IMPACT; CYCLOPROPANE AB The infrared spectrum of [1.1.1]propellane has been recorded at high resolution (0.002cm(-1)) with individual rovibrational lines resolved for the first time. This initial report presents the ground state constants for this molecule determined from the analysis of five of the eight infrared-allowed fundamentals nu(9)(e'), nu(10)(e'), nu(12)(e'), nu(14) (a2 ''), nu(15) (a(2)''), as well as of several combination bands. In nearly all cases it was found that the upper states of the transitions exhibit some degree of perturbation but, by use of the combination difference method, the assigned frequencies provided over 4000 consistent ground state difference values. Analysis of these gave for the parameters of the ground state the following values, in cm(-1): B-0 = 0.28755833(14), D-J = 1. 1313(5) x 10(-7), D-JK = -1.2633(7) x 10(-7), Hi = 0.72(4) x 10(-13), H-JK = -2.24(13) x 10(-13), and H-KJ = 2.25(15) x 10(-13), where the numbers in parentheses indicate twice the uncertainties in the last quoted digit(s) of the parameters. Gaussian ab initio calculations, especially with the computed anharmonic corrections to some of the spectroscopic parameters, assisted in the assignments of the bands and also provided information on the electron distribution in the bridge-head carbon-carbon bond. (c) 2008 Elsevier Inc. All rights reserved. C1 [Kirkpatrick, Robynne; Jariyasopit, Narumol; Nibler, Joseph W.] Oregon State Univ, Dept Chem, Corvallis, OR 97332 USA. [Masiello, Tony; Blake, Thomas A.; Hubler, Timothy] Pacific NW Natl Lab, Richland, WA 99352 USA. [Weber, Alfons] NIST, Opt Technol Div, Gaithersburg, MD 20899 USA. RP Nibler, JW (reprint author), Oregon State Univ, Dept Chem, Room 101,Gilbert Hall, Corvallis, OR 97332 USA. EM Niblerj@chem.orst.edu NR 54 TC 9 Z9 9 U1 1 U2 5 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD APR PY 2008 VL 248 IS 2 BP 153 EP 160 DI 10.1016/j.jms.2007.12.009 PG 8 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA 276IR UT WOS:000254135000006 ER PT J AU Gardner, JS Shurdha, E Wang, CM Lau, LD Rodriguez, RG Pak, JJ AF Gardner, Joseph S. Shurdha, Endrit Wang, Chongmin Lau, Lisa D. Rodriguez, Rene G. Pak, Joshua J. TI Rapid synthesis and size control of CuInS2 semi-conductor nanoparticles using microwave irradiation SO JOURNAL OF NANOPARTICLE RESEARCH LA English DT Article DE microwave irradiation; size-control; CuInS2; ternary; nanoparticle semi-conductor; colloids ID SINGLE-SOURCE PRECURSORS; CHALCOPYRITE MATERIALS; ASSISTED DIGESTION; FACILE ROUTE; THIN-FILM; OPTIMIZATION; SPECTROMETRY; DEPOSITION; CDSE AB The properties of CuInS2 semi-conductor nanoparticles make them attractive materials for use in next-generation photovoltaics. We have prepared CuInS2 nanoparticles from single source precursors via microwave irradiation. Microwave irradiation methods have allowed us to increase the efficiency of preparation of these materials by providing uniform heating and rapid reaction times. The synergistic effect of varying thiol capping ligand concentrations as well as reaction temperatures and times resulted in fine control of nanoparticle growth in the 3-5 nm size range. Investigation of the photophysical properties of the colloidal nanoparticles were performed using electronic absorption and luminescence emission spectroscopy. Qualitative nanoparticles sizes were determined from the photoluminescence (PLE) data and compared to HRTEM images. C1 [Gardner, Joseph S.; Shurdha, Endrit; Lau, Lisa D.; Rodriguez, Rene G.; Pak, Joshua J.] Idaho State Univ, Dept Chem, Pocatello, ID 83209 USA. [Wang, Chongmin] Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA. RP Pak, JJ (reprint author), Idaho State Univ, Dept Chem, Campus Box 8023, Pocatello, ID 83209 USA. EM pakjosh@isu.edu NR 30 TC 53 Z9 54 U1 3 U2 30 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1388-0764 EI 1572-896X J9 J NANOPART RES JI J. Nanopart. Res. PD APR PY 2008 VL 10 IS 4 BP 633 EP 641 DI 10.1007/s11051-007-9294-7 PG 9 WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 269CK UT WOS:000253626900009 ER PT J AU Schrier, J Lee, B Wang, LW AF Schrier, Joshua Lee, Byounghak Wang, Lin-Wang TI Mechanical and electronic-structure properties of compressed CdSe tetrapod nanocrystals SO JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY LA English DT Article DE CdSe tetropod nanocrystals; mechanical properties ID QUANTUM DOTS; METASTABILITY; SIZE AB The coupling of mechanical and optical properties in semiconductor nanostructures can potentially lead to new types of devices. This work describes our theoretical examination of the mechanical properties of CdSe tetrapods under directional forces, such as may be induced by AFM tips. In addition to studying the general behavior of the mechanical properties under modifications of geometry, nanocrystal-substrate interaction, and dimensional scaling, our calculations indicate that mechanical deformations do not lead to large changes in the band-edge state eigenenergies, and have only a weak effect on the oscillator strengths of the lowest energy transitions. C1 [Schrier, Joshua; Lee, Byounghak; Wang, Lin-Wang] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. RP Schrier, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. RI Schrier, Joshua/B-6838-2009 NR 18 TC 10 Z9 11 U1 3 U2 14 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1533-4880 J9 J NANOSCI NANOTECHNO JI J. Nanosci. Nanotechnol. PD APR PY 2008 VL 8 IS 4 BP 1994 EP 1998 DI 10.1166/jnn.2008.039 PG 5 WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 299YB UT WOS:000255790400048 PM 18572604 ER EF