FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Becher, PF Hampshire, S Pomeroy, MJ Hoffmann, MJ Lance, MJ Satet, RL AF Becher, Paul F. Hampshire, Stuart Pomeroy, Michael J. Hoffmann, Michael J. Lance, Michael J. Satet, Raphaelle L. TI An Overview of the Structure and Properties of Silicon-Based Oxynitride Glasses SO INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE LA English DT Article ID O-N GLASSES; EARTH ALUMINOSILICATE GLASSES; SUBCRITICAL CRACK-GROWTH; MG-AL-SI; SIALON GLASSES; MECHANICAL-PROPERTIES; SI3N4 CERAMICS; ELASTIC PROPERTIES; RHEOLOGICAL PROPERTIES; DIELECTRIC-PROPERTIES AB The silicon oxynitride glasses take advantage of nitrogen bonding to attain high elastic modulus, increased softening temperatures and viscosities, greater slow crack growth resistance, and modest gains in fracture resistance. Of the oxynitride glasses, the Si-Y-Al-based oxynitride glasses have been most extensively studied and a degree of success has been achieved in understanding how changes in glass composition affect structural parameters and their relationship with properties. More recent studies have focused on the Si-RE-Me oxynitride glasses, where Me is primarily Al or Mg and rare earth (RE) includes most of the lanthanide series elements. These glasses possess a range of elastic, thermal, mechanical, and optical properties, which can be correlated with the strength of the RE bond in terms of the cationic field strength. However, such correlations require knowledge of not only the RE valence state but also its coordination with the anions. Herein, the current state-of-the-art understanding of the properties and structural parameters of oxynitride glasses and their interrelationships are reviewed. C1 [Becher, Paul F.; Lance, Michael J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Hampshire, Stuart; Pomeroy, Michael J.] Univ Limerick, Mat & Surface Sci Inst, Limerick, Ireland. [Hoffmann, Michael J.; Satet, Raphaelle L.] Univ Karlsruhe, Inst Ceram, D-76131 Karlsruhe, Germany. RP Becher, PF (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM pff@ornl.gov RI Lance, Michael/I-8417-2016 OI Lance, Michael/0000-0001-5167-5452 FU Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy FX For authors Paul F. Becher and Michael J. Hoffmann, research was sponsored by the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy. NR 97 TC 31 Z9 31 U1 1 U2 21 PU WILEY PERIODICALS, INC PI SAN FRANCISCO PA ONE MONTGOMERY ST, SUITE 1200, SAN FRANCISCO, CA 94104 USA SN 2041-1286 J9 INT J APPL GLASS SCI JI Int. J. Appl. Glass Sci. PD MAR PY 2011 VL 2 IS 1 SI SI BP 63 EP 83 DI 10.1111/j.2041-1294.2011.00042.x PG 21 WC Materials Science, Ceramics SC Materials Science GA 034CO UT WOS:000310847900007 ER PT J AU Salazar-Villalpando, MD Miller, AC AF Salazar-Villalpando, Maria D. Miller, Adam C. TI Catalytic partial oxidation of methane and isotopic oxygen exchange reactions over O-18 labeled Rh/Gadolinium doped ceria SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article DE Partial oxidation of methane; Oxygen isotopic exchange; Doped ceria; Isotopic exchange; Pulse experiments ID SYNTHESIS GAS; MIXED OXIDES; PLATINUM; BASICITY; ZRO2 AB O-18 labeled catalysts, Rh/(Ce0.91Gd0.09)Ox-2, (Rh/GDC10) and Rh/gamma-Al2O3 (Rh/ALU) were used to study the catalytic partial oxidation of methane (CPOM) and oxygen isotopic exchange reactions. During the CPOM tests, higher (CO)-O-18 than (CO)-O-16 concentrations were observed over O-18 labeled Rh/GDC10 than Rh/ALU, which is explained by the higher oxygen storage capacity and oxygen mobility of the former catalyst. Similarly, Rh/GDC10 showed higher oxygen exchange rates than Rh/ALU during the isotopic exchange experiments. The oxygen exchange between the gas phase and the solid is limited by the oxygen mobility in/on the catalyst. This catalytic behavior is due to the fact that ceria has two stable oxidation states, Ce3+' and Ce4+ and the addition of Gd3+ to ceria lattice enhanced the oxygen mobility by the creation of oxygen vacancies. These higher oxygen exchange rates also correlate to higher concentrations of (CO)-O-18 than (CO)-O-16 during the CPOM experiments. Pulse experiments suggest that the reaction mechanism for the CPOM on Rh/GDC10 occurred through a mixed (direct and indirect) mechanism. The direct mechanism assumes that H-2 and CO are primary reaction products formed in the oxidation zone at the catalyst entrance. Thus, CO formed from the reaction between lattice oxygen in Rh/GDC10 and adsorbed atomic carbon. CO2 is formed through an indirect mechanism, where CH4 reacts with O-2 to form CO2 and H2O. CO forms through the reactions between 1) CO2 and CH4 and 2) CH4 and H2O. Copyright 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. C1 [Salazar-Villalpando, Maria D.] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. [Miller, Adam C.] W Virginia Univ, Dept Chem Engn, Morgantown, WV 26506 USA. RP Salazar-Villalpando, MD (reprint author), US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. EM maria.salazar@netl.doe.gov NR 31 TC 3 Z9 3 U1 3 U2 11 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD MAR PY 2011 VL 36 IS 6 BP 3880 EP 3885 DI 10.1016/j.ijhydene.2010.11.040 PG 6 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 747PL UT WOS:000289331800011 ER PT J AU Liang, YT Van Nostrand, JD Deng, Y He, ZL Wu, LY Zhang, X Li, GH Zhou, JZ AF Liang, Yuting Van Nostrand, Joy D. Deng, Ye He, Zhili Wu, Liyou Zhang, Xu Li, Guanghe Zhou, Jizhong TI Functional gene diversity of soil microbial communities from five oil-contaminated fields in China SO ISME JOURNAL LA English DT Article DE GeoChip; functional gene arrays; metagenomics; oil contamination; functional gene diversity ID POLYCYCLIC AROMATIC-HYDROCARBONS; MICROARRAY-BASED ANALYSIS; GEOCHIP-BASED ANALYSIS; CRUDE-OIL; BACTERIAL DIVERSITY; BIODEGRADATION; BIOREMEDIATION; SEDIMENTS; RESPONSES; STRAINS AB To compare microbial functional diversity in different oil-contaminated fields and to know the effects of oil contaminant and environmental factors, soil samples were taken from typical oil-contaminated fields located in five geographic regions of China. GeoChip, a high-throughput functional gene array, was used to evaluate the microbial functional genes involved in contaminant degradation and in other major biogeochemical/ metabolic processes. Our results indicated that the overall microbial community structures were distinct in each oil-contaminated field, and samples were clustered by geographic locations. The organic contaminant degradation genes were most abundant in all samples and presented a similar pattern under oil contaminant stress among the five fields. In addition, alkane and aromatic hydrocarbon degradation genes such as monooxygenase and dioxygenase were detected in high abundance in the oil-contaminated fields. Canonical correspondence analysis indicated that the microbial functional patterns were highly correlated to the local environmental variables, such as oil contaminant concentration, nitrogen and phosphorus contents, salt and pH. Finally, a total of 59% of microbial community variation from GeoChip data can be explained by oil contamination, geographic location and soil geochemical parameters. This study provided insights into the in situ microbial functional structures in oil-contaminated fields and discerned the linkages between microbial communities and environmental variables, which is important to the application of bioremediation in oil-contaminated sites. The ISME Journal (2011) 5, 403-413; doi: 10.1038/ismej.2010.142; published online 23 September 2010 C1 [Liang, Yuting; Van Nostrand, Joy D.; Deng, Ye; He, Zhili; Wu, Liyou; Zhou, Jizhong] Univ Oklahoma, Inst Environm Genom, Norman, OK 73019 USA. [Liang, Yuting; Van Nostrand, Joy D.; Deng, Ye; He, Zhili; Wu, Liyou; Zhou, Jizhong] Univ Oklahoma, Dept Bot & Microbiol, Norman, OK 73019 USA. [Liang, Yuting] Changzhou Univ, Jiangsu, Peoples R China. [Liang, Yuting; Zhang, Xu; Li, Guanghe; Zhou, Jizhong] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China. [Van Nostrand, Joy D.; Deng, Ye; He, Zhili; Wu, Liyou; Zhou, Jizhong] Univ Missouri, Virtual Inst Microbial Stress & Survival, Columbia, SC USA. [Zhou, Jizhong] Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA USA. RP Zhou, JZ (reprint author), Univ Oklahoma, Inst Environm Genom, Norman, OK 73019 USA. EM ligh@tsinghua.edu.cn; jzhou@ou.edu RI Deng, Ye/A-2571-2013; He, Zhili/C-2879-2012; Van Nostrand, Joy/F-1740-2016; OI Van Nostrand, Joy/0000-0001-9548-6450; ?, ?/0000-0002-7584-0632 FU National Natural Scientific Foundation of China [40730738]; U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231]; Lawrence Berkeley National Laboratory; U.S. Department of Energy; Oklahoma Center for the Advancement of Science and Technology FX This work was supported by the National Natural Scientific Foundation of China (No. 40730738), the United States Department of Energy under the Environmental Remediation Science Program, and was part of the Virtual Institute for Microbial Stress and Survival (http://VIMSS.lbl.gov), which was supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, Genomics Program: GTL through contract DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the U.S. Department of Energy, and was also supported by the Oklahoma Center for the Advancement of Science and Technology under the Oklahoma Applied Research Support Program. NR 61 TC 69 Z9 81 U1 21 U2 122 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1751-7362 J9 ISME J JI ISME J. PD MAR PY 2011 VL 5 IS 3 BP 403 EP 413 DI 10.1038/ismej.2010.142 PG 11 WC Ecology; Microbiology SC Environmental Sciences & Ecology; Microbiology GA 756NZ UT WOS:000290021000004 PM 20861922 ER PT J AU Tome, CN Beyerlein, IJ Wang, J McCabe, RJ AF Tome, C. N. Beyerlein, I. J. Wang, J. McCabe, R. J. TI A multi-scale statistical study of twinning in magnesium SO JOM LA English DT Article ID HARDENING EVOLUTION; HEXAGONAL MATERIALS; MODELING TEXTURE; DEFORMATION; NUCLEATION; METALS AB Hexagonal close packed (HCP) materials such as Mg, Zr, Ti, and Be are used in automotive, nuclear, aeronautic, and defense technologies. Understanding and controlling the formability of these materials is extremely relevant for these technologies. Such understanding requires an understanding of deformation twinning, an important deformation mechanism in HCP. Here we present a multi-scale modeling paradigm that passes information from the atomistic scale to the mesoscale represented by an individual grain in a polycrystalline metal. The single crystal model is, in turn, integrated into an Effective Medium model, which relates the behavior of all grains in the aggregate to the bulk response, such as stress-strain and texture evolution. This article focuses on application of the multi-scale model to HCP polycrystalline magnesium. C1 [Tome, C. N.; Wang, J.; McCabe, R. J.] Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA. [Beyerlein, I. J.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Tome, CN (reprint author), Los Alamos Natl Lab, Mat Sci & Technol Div, POB 1663, Los Alamos, NM 87545 USA. EM tome@lanl.gov RI Tome, Carlos/D-5058-2013; Beyerlein, Irene/A-4676-2011; Wang, Jian/F-2669-2012; OI Wang, Jian/0000-0001-5130-300X; McCabe, Rodney /0000-0002-6684-7410 FU Materials Science and Engineering Division, Office of Basic Energy Science (DOE) [FWP 09SCPE401] FX This research is performed as part of the Project "Multi-scale study of the role of microstructure in the deformation behavior of hexagonal materials," and is fully supported by the Materials Science and Engineering Division, Office of Basic Energy Science (DOE), under Contract FWP 09SCPE401. NR 23 TC 33 Z9 33 U1 2 U2 36 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1047-4838 J9 JOM-US JI JOM PD MAR PY 2011 VL 63 IS 3 BP 19 EP 23 DI 10.1007/s11837-011-0038-x PG 5 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA 733IZ UT WOS:000288257700002 ER PT J AU Jiang, XW Li, SS Xia, JB Wang, LW AF Jiang, Xiang-Wei Li, Shu-Shen Xia, Jian-Bai Wang, Lin-Wang TI Quantum mechanical simulation of electronic transport in nanostructured devices by efficient self-consistent pseudopotential calculation SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID FIELD-EFFECT TRANSISTORS; SEMICONDUCTOR-DEVICES; SILICON DEVICES; MONTE-CARLO; MOSFETS; NANOTRANSISTORS; APPROXIMATION; EQUATIONS; DESIGN; MODELS AB We present a new empirical pseudopotential (EPM) calculation approach to simulate the million atom nanostructured semiconductor devices under potential bias using periodic boundary conditions. To treat the nonequilibrium condition, instead of directly calculating the scattering states from the source and drain, we calculate the stationary states by the linear combination of bulk band method and then decompose the stationary wave function into source and drain injecting scattering states according to an approximated top of the barrier splitting (TBS) scheme based on physical insight of ballistic and tunneling transports. The decomposed electronic scattering states are then occupied according to the source/drain Fermi-Levels to yield the occupied electron density which is then used to solve the potential, forming a self-consistent loop. The TBS is tested in a one-dimensional effective mass model by comparing with the direct scattering state calculation results. It is also tested in a three-dimensional 22 nm double gate ultra-thin-body field-effect transistor study, by comparing the TBS-EPM result with the nonequilibrium Green's function tight-binding result. We expected the TBS scheme will work whenever the potential in the barrier region is smoother than the wave function oscillations and it does not have local minimum, thus there is no multiple scattering as in a resonant tunneling diode, and when a three-dimensional problem can be represented as a quasi-one-dimensional problem, e. g., in a variable separation approximation. Using our approach, a million atom nonequilibrium nanostructure device can be simulated with EPM on a single processor computer. (C) 2011 American Institute of Physics. [doi:10.1063/1.3556430] C1 [Jiang, Xiang-Wei; Li, Shu-Shen; Xia, Jian-Bai] Chinese Acad Sci, State Key Lab Superlattices & Microstruct, Inst Semicond, Beijing 100083, Peoples R China. [Wang, Lin-Wang] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA. RP Jiang, XW (reprint author), Chinese Acad Sci, State Key Lab Superlattices & Microstruct, Inst Semicond, POB 912, Beijing 100083, Peoples R China. EM xwjiang@semi.ac.cn FU National Basic Research Program of China (973 Program) [G2009CB929300]; National Natural Science Foundation of China [60821061, 60776061]; U.S. Department of Energy BES, Office of Science [DE-AC02-05CH11231] FX This work was supported by the National Basic Research Program of China (973 Program) Grant No. G2009CB929300 and the National Natural Science Foundation of China under Grant Nos. 60821061 and 60776061. L.W.W is funded by the U.S. Department of Energy BES, Office of Science, under Contract No. DE-AC02-05CH11231. NR 48 TC 11 Z9 11 U1 0 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 MAR 1 PY 2011 VL 109 IS 5 AR 054503 DI 10.1063/1.3556430 PG 10 WC Physics, Applied SC Physics GA 735BH UT WOS:000288387900109 ER PT J AU Protat, A Bouniol, D O'Connor, EJ Baltink, HK Verlinde, J Widener, K AF Protat, A. Bouniol, D. O'Connor, E. J. Baltink, H. Klein Verlinde, J. Widener, K. TI CloudSat as a Global Radar Calibrator SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY LA English DT Article ID TRMM PRECIPITATION RADAR; ATMOSPHERIC RADIATION; PROFILING RADAR; AIRBORNE; PROGRAM AB The calibration of the CloudSat spaceborne cloud radar has been thoroughly assessed using very accurate internal link budgets before launch, comparisons with predicted ocean surface backscatter at 94 GHz, direct comparisons with airborne cloud radars, and statistical comparisons with ground-based cloud radars at different locations of the world. It is believed that the calibration of CloudSat is accurate to within 0.5-1 dB. In the present paper it is shown that an approach similar to that used for the statistical comparisons with ground-based radars can now be adopted the other way around to calibrate other ground-based or airborne radars against CloudSat and/or to detect anomalies in long time series of ground-based radar measurements, provided that the calibration of CloudSat is followed up closely (which is the case). The power of using CloudSat as a global radar calibrator is demonstrated using the Atmospheric Radiation Measurement cloud radar data taken at Barrow, Alaska, the cloud radar data from the Cabauw site, Netherlands, and airborne Doppler cloud radar measurements taken along the CloudSat track in the Arctic by the Radar System Airborne (RASTA) cloud radar installed in the French ATR-42 aircraft for the first time. It is found that the Barrow radar data in 2008 are calibrated too high by 9.8 dB, while the Cabauw radar data in 2008 are calibrated too low by 8.0 dB. The calibration of the RASTA airborne cloud radar using direct comparisons with CloudSat agrees well with the expected gains and losses resulting from the change in configuration that required verification of the RASTA calibration. C1 [Protat, A.] CAWCR, Melbourne, Vic 3008, Australia. [Protat, A.] Lab Atmosphere Milieux & Observat Spatiales, Velizy Villacoublay, France. [Bouniol, D.] CNRS Meteo France, GAME, Toulouse, France. [O'Connor, E. J.] Univ Reading, Reading, Berks, England. [O'Connor, E. J.] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland. [Baltink, H. Klein] Royal Netherlands Meteorol Inst, KNMI, NL-3730 AE De Bilt, Netherlands. [Verlinde, J.] Penn State Univ, University Pk, PA 16802 USA. [Widener, K.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Protat, A (reprint author), CAWCR, 700 Collins St, Melbourne, Vic 3008, Australia. EM a.protat@bom.gov.au FU U.S. Department of Energy; French Space Agency (Centre National d'Etudes Spatiales) FX This work has been partly supported by the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) program, and partly by the French Space Agency (Centre National d'Etudes Spatiales). The Barrow NSA ARM radar data were obtained from the ARM Program Archive. The Cabauw site is acknowledged for providing the 35-GHz radar data used in this study. The NASA CloudSat CPR data and products were obtained from the CloudSat Data Processing Center run by the Cooperative Institute for Research in the Atmosphere (CIRA). NR 19 TC 9 Z9 9 U1 2 U2 10 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 MAR PY 2011 VL 28 IS 3 BP 445 EP 452 DI 10.1175/2010JTECHA1443.1 PG 8 WC Engineering, Ocean; Meteorology & Atmospheric Sciences SC Engineering; Meteorology & Atmospheric Sciences GA 743VD UT WOS:000289045900013 ER PT J AU Matilla, MA Pizarro-Tobias, P Roca, A Fernandez, M Duque, E Molina, L Wu, XA van der Lelie, D Gomez, MJ Segura, A Ramos, JL AF Matilla, Miguel A. Pizarro-Tobias, Paloma Roca, Amalia Fernandez, Matilde Duque, Estrella Molina, Lazaro Wu, Xiao van der Lelie, Daniel Gomez, Manuel J. Segura, Ana Ramos, Juan-Luis TI Complete Genome of the Plant Growth-Promoting Rhizobacterium Pseudomonas putida BIRD-1 SO JOURNAL OF BACTERIOLOGY LA English DT Article AB We report the complete sequence of the 5.7-Mbp genome of Pseudomonas putida BIRD-1, a metabolically versatile plant growth-promoting rhizobacterium that is highly tolerant to desiccation and capable of solubilizing inorganic phosphate and iron and of synthesizing phytohormones that stimulate seed germination and plant growth. C1 [Duque, Estrella; Molina, Lazaro; Segura, Ana; Ramos, Juan-Luis] CSIC, EEZ, E-18008 Granada, Spain. [Matilla, Miguel A.; Pizarro-Tobias, Paloma; Roca, Amalia; Fernandez, Matilde] Poligono Ind Juncaril, Bio Iliberis R&D, Granada, Spain. [Wu, Xiao; van der Lelie, Daniel] Brookhaven Natl Lab, Upton, NY 11973 USA. [Gomez, Manuel J.] CSIC, INTA, Inst Astrobiol, Torrejon De Ardoz, Spain. RP Ramos, JL (reprint author), CSIC, EEZ, C Prof Albareda 1, E-18008 Granada, Spain. EM juanluis.ramos@eez.csic.es RI Fernandez, Matilde/F-5980-2013; Molina, Lazaro/K-9645-2014; Vazquez, Miguel/G-8839-2015; Segura, Ana/F-9811-2016; Gomez, Manuel/F-8854-2016; OI Fernandez, Matilde/0000-0002-7064-670X; Molina, Lazaro/0000-0002-8483-9203; Vazquez, Miguel/0000-0002-8468-9604; Gomez, Manuel/0000-0002-4111-4835; Ramos, Juan L./0000-0002-8731-7435 FU FEDER Funds [BIO2010-17227]; EU BACSIN; U.S. Department of Energy [DE-AC02-98CH10886]; [LDRD09-005] FX This work was supported by FEDER Funds through projects BIO2010-17227 and EU BACSIN. Work at BNL was supported by fund LDRD09-005 and contract DE-AC02-98CH10886 with the U.S. Department of Energy. NR 4 TC 27 Z9 27 U1 2 U2 6 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 MAR PY 2011 VL 193 IS 5 BP 1290 EP 1290 DI 10.1128/JB.01281-10 PG 1 WC Microbiology SC Microbiology GA 718QD UT WOS:000287139200037 PM 21183676 ER PT J AU Shahnazari, M Yao, W Wang, B Panganiban, B Ritchie, RO Hagar, Y Lane, NE AF Shahnazari, Mohammad Yao, Wei Wang, Bob Panganiban, Brian Ritchie, Robert O. Hagar, Yolanda Lane, Nancy E. TI Differential Maintenance of Cortical and Cancellous Bone Strength Following Discontinuation of Bone-Active Agents SO JOURNAL OF BONE AND MINERAL RESEARCH LA English DT Article DE BONE STRENGTH; TREATMENT WITHDRAWAL; ALENDRONATE; PTH; RALOXIFENE ID PARATHYROID-HORMONE 1-84; OVARIECTOMIZED RHESUS-MONKEYS; TRABECULAR BONE; BIOMECHANICAL PROPERTIES; POSTMENOPAUSAL WOMEN; VERTEBRAL FRACTURE; ILIAC CREST; OSTEOPOROSIS; ALENDRONATE; RATS AB Osteoporotic patients treated with antiresorptive or anabolic agents experience an increase in bone mass and a reduction in incident fractures. However, the effects of these medications on bone quality and strength after a prolonged discontinuation of treatment are not known. We evaluated these effects in an osteoporotic rat model. Six-month-old ovariectomized (OVX) rats were treated with placebo, alendronate (ALN, 2 mu g/kg), parathyroid hormone [PTH(1-34); 20 mu g/kg], or raloxifene (RAL, 2 mg/kg) three times a week for 4 months and withdrawn from the treatments for 8 months. Treatment with ALN, PTH, and RAL increased the vertebral trabecular bone volume (BV/TV) by 47%, 53%, and 31%, with corresponding increases in vertebral compression load by 27%, 51%, and 31%, respectively (p < .001). The resulting bone strength was similar to that of the sham-OVX control group with ALN and RAL and higher (p < .001) with PTH treatment. After 4 months of withdrawal, bone turnover (BFR/BS) remained suppressed in the ALN group versus the OVX controls (p < .001). The vertebral strength was higher than in the OVX group only in ALN-treated group (p < .05), whereas only the PTH-treated animals showed a higher maximum load in tibial bending versus the OVX controls (p < .05). The vertebral BV/TV returned to the OVX group level in both the PTH and RAL groups 4 months after withdrawal but remained 25% higher than the OVX controls up to 8 months after withdrawal of ALN (p < .05). Interestingly, cortical bone mineral density increased only with PTH treatment (p < .05) but was not different among the experimental groups after withdrawal. At 8 months after treatment withdrawal, none of the treatment groups was different from the OVX control group for cortical or cancellous bone strength. In summary, both ALN and PTH maintained bone strength (maximum load) 4 months after discontinuation of treatment despite changes in bone mass and bone turnover; however, PTH maintained cortical bone strength, whereas ALN maintained cancellous bone strength. Additional studies on the long-term effects on bone strength after discontinuation and with combination of osteoporosis medications are needed to improve our treatment of osteoporosis. (c) 2011 American Society for Bone and Mineral Research. C1 [Shahnazari, Mohammad; Yao, Wei; Wang, Bob; Lane, Nancy E.] Univ Calif Davis, Med Ctr, Dept Med, Sacramento, CA 95817 USA. [Panganiban, Brian; Ritchie, Robert O.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA USA. [Panganiban, Brian; Ritchie, Robert O.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Hagar, Yolanda] Univ Calif Davis, Div Biostat, Davis, CA 95616 USA. RP Lane, NE (reprint author), Ctr Healthy Aging Med & Rheumatol, 4800 2nd Ave,Suite 2600, Sacramento, CA 95817 USA. EM nelane@ucdavis.edu RI Ritchie, Robert/A-8066-2008 OI Ritchie, Robert/0000-0002-0501-6998 FU National Institutes of Health (NIH) [R01 AR043052, K24 AR-048841, 1K12HD05195801]; National Center for Research Resources (NCRR), a component of the NIH [UL1 RR024146]; NIH Roadmap for Medical Research FX This work was funded by National Institutes of Health (NIH) Grants R01 AR043052 and K24 AR-048841 to NEL,1K12HD05195801. Statistical support was made possible by Grant UL1 RR024146 from the National Center for Research Resources (NCRR), a component of the NIH and NIH Roadmap for Medical Research. NR 41 TC 6 Z9 6 U1 0 U2 10 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0884-0431 J9 J BONE MINER RES JI J. Bone Miner. Res. PD MAR PY 2011 VL 26 IS 3 BP 569 EP 581 DI 10.1002/jbmr.249 PG 13 WC Endocrinology & Metabolism SC Endocrinology & Metabolism GA 727UG UT WOS:000287827600018 PM 20839286 ER PT J AU Mahajan, S Saravanan, R Chang, P AF Mahajan, Salil Saravanan, R. Chang, Ping TI The Role of the Wind-Evaporation-Sea Surface Temperature (WES) Feedback as a Thermodynamic Pathway for the Equatorward Propagation of High-Latitude Sea Ice-Induced Cold Anomalies SO JOURNAL OF CLIMATE LA English DT Article ID ATLANTIC THERMOHALINE CIRCULATION; INTERTROPICAL CONVERGENCE ZONE; COMMUNITY CLIMATE MODEL; LAST GLACIAL MAXIMUM; TROPICAL ATLANTIC; OCEAN; VARIABILITY; ATMOSPHERE; MIDLATITUDE; SIMULATION AB The role of the wind-evaporation-sea surface temperature (WES) feedback in the propagation of the high-latitude cooling signal to the tropical oceans using the NCAR atmospheric Community Climate Model (CCM3) coupled thermodynamically to a slab-ocean model (SOM) is studied. Abruptly imposed additional Northern Hemispheric sea ice cover equivalent to the Last Glacial Maximum (LGM; 18 kyr BP) in the model causes a Northern Hemisphere wide cooling, as well as the generation and amplification of an anomalous cross-equatorial meridional SST dipole associated with a southward migration of the intertropical convergence zone (ITCZ) stabilizing within a period of 5 yr. In experiments where the WES feedback is switched off explicitly by modifying the sensible and latent heat flux bulk aerodynamic formulations over the oceans in CCM3, imposed Northern Hemispheric sea ice also results in widespread northern cooling at the same rate as the unmodified run, suggesting that the WES feedback is not essential in the propagation of the high-latitude cooling signal to the deep tropics. However, the WES-off experiment generates a weaker cross-equatorial SST dipole with a modest southward movement of the ITCZ, suggesting that the WES feedback is responsible for amplifying SST and atmospheric anomalies in the deep tropics during their transition to the new equilibrium state. The propagation of high-latitude cooling to the deep tropics is proposed to be caused by the decrease of near-surface specific humidity in the northern tropics. C1 [Mahajan, Salil] Princeton Univ, Atmospher & Ocean Sci Program, Princeton, NJ 08544 USA. [Saravanan, R.; Chang, Ping] Texas A&M Univ, Dept Atmospher Sci, College Stn, TX USA. RP Mahajan, S (reprint author), Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37830 USA. EM mahajans@ornl.gov RI Saravanan, Ramalingam/G-8879-2012; Chang, Ping /A-1642-2013; OI Saravanan, Ramalingam/0000-0002-0005-6907; Chang, Ping /0000-0002-9085-0759; Mahajan, Salil/0000-0001-5767-8590 FU NOAA [NA050AR4311136]; NSF [ATM-0337846] FX This work was supported by research grants from NOAA's CLIVAR Program (Project NA050AR4311136) and NSF's Climate Dynamics Program (ATM-0337846). We are grateful for the improvements suggested by anonymous reviewers. NR 35 TC 11 Z9 11 U1 0 U2 9 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 MAR 1 PY 2011 VL 24 IS 5 BP 1350 EP 1361 DI 10.1175/2010JCLI3455.1 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 743NQ UT WOS:000289025500003 ER PT J AU Pan, C Wang, S He, M White, RD Lara, P Gandara, DR Mack, PC Turteltaub, K Henderson, PT AF Pan, C. Wang, S. He, M. White, R. de Vere Lara, P., Jr. Gandara, D. R. Mack, P. C. Turteltaub, K. Henderson, P. T. TI A phase 0 microdosing trial to identify chemoresistance in bladder cancer SO JOURNAL OF CLINICAL ONCOLOGY LA English DT Meeting Abstract C1 Univ Calif Davis, Sacramento, CA 95817 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER SOC CLINICAL ONCOLOGY PI ALEXANDRIA PA 2318 MILL ROAD, STE 800, ALEXANDRIA, VA 22314 USA SN 0732-183X EI 1527-7755 J9 J CLIN ONCOL JI J. Clin. Oncol. PD MAR 1 PY 2011 VL 29 IS 7 SU S MA 264 PG 1 WC Oncology SC Oncology GA V31JU UT WOS:000208880700264 PM 27968581 ER PT J AU Hammond, GE Lichtner, PC Rockhold, ML AF Hammond, Glenn E. Lichtner, Peter C. Rockhold, Mark L. TI Stochastic simulation of uranium migration at the Hanford 300 Area SO JOURNAL OF CONTAMINANT HYDROLOGY LA English DT Article DE High performance computing; Reactive transport; Hanford 300 Area; Heterogeneous permeability ID HYDRAULIC CONDUCTIVITY AB This work focuses on the quantification of groundwater flow and subsequent U(VI) transport uncertainty due to heterogeneity in the sediment permeability at the Hanford 300 Area. U(VI) migration at the site is simulated with multiple realizations of stochastically-generated high resolution permeability fields and comparisons are made of cumulative water and U(VI) flux to the Columbia River. The massively parallel reactive flow and transport code PFLOTRAN is employed utilizing 40,960 processor cores on DOE's petascale Jaguar supercomputer to simultaneously execute 10 transient, variably-saturated groundwater flow and U(VI) transport simulations within 3D heterogeneous permeability fields using the code's multi-realization simulation capability. Simulation results demonstrate that the cumulative U(VI) flux to the Columbia River is less responsive to fine scale heterogeneity in permeability and more sensitive to the distribution of permeability within the river hyporheic zone and mean permeability of larger-scale geologic structures at the site. (C) 2010 Elsevier B.V. All rights reserved. C1 [Hammond, Glenn E.; Rockhold, Mark L.] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA. [Lichtner, Peter C.] Los Alamos Natl Lab, Earth & Environm Sci Div EES16, Los Alamos, NM 87545 USA. RP Hammond, GE (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, POB 999,MSIN K9-36, Richland, WA 99352 USA. EM glenn.hammond@pnl.gov; lichtner@lanl.gov; mark.rockhold@pnl.gov FU US. DOE; DOE Offices of Biological & Environmental Research (BER) and Advanced Scientific Computing Research (ASCR); Subsurface Biogeochemical Research (SBR), Office of Biological and Environmental Research (OBER) of the U.S. DOE FX We thank two anonymous reviewers that greatly improved the manuscript. This research is supported under the US. DOE SciDAC-2 program with funding provided by DOE Offices of Biological & Environmental Research (BER) and Advanced Scientific Computing Research (ASCR). In addition, this research was supported by the Subsurface Biogeochemical Research (SBR), Office of Biological and Environmental Research (OBER) of the U.S. DOE, as part of the Hanford 300 Area Integrated Field Research Challenge Project. Supercomputing resources were provided by the DOE Office of Science Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program with allocations on NCCS Jaguar at Oak Ridge National Laboratory. NR 20 TC 16 Z9 16 U1 0 U2 18 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 MAR 1 PY 2011 VL 120-21 SI SI BP 115 EP 128 DI 10.1016/j.jconhyd.2010.04.005 PG 14 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA 728QO UT WOS:000287889100009 PM 20510479 ER PT J AU Gul, R Bolotnikov, A Kim, HK Rodriguez, R Keeter, K Li, Z Gu, G James, RB AF Gul, R. Bolotnikov, A. Kim, H. K. Rodriguez, R. Keeter, K. Li, Z. Gu, G. James, R. B. TI Point Defects in CdZnTe Crystals Grown by Different Techniques SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article DE CdZnTe detectors; crystal growth; point defects; DLTS ID PRESSURE BRIDGMAN METHOD; CADMIUM ZINC TELLURIDE; CDTE; DETECTORS; IRRADIATION AB We studied, by current deep-level transient spectroscopy (I-DLTS), point defects in CdZnTe detectors grown by different techniques. We identified 12 different traps with energy levels from 7 meV to 1.1 eV. Although the levels of most of the identified defects were independent of the crystal growth techniques, nevertheless there were some associated differences in the traps' energies and densities. C1 [Gul, R.; Bolotnikov, A.; Kim, H. K.; Li, Z.; Gu, G.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Gul, R.; Rodriguez, R.; Keeter, K.] Idaho State Univ, Pocatello, ID 83209 USA. RP Gul, R (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM gul@bnl.gov FU Defense Treat Reduction Agency, US Department of Energy, Office of Nonproliferation Research and Development; [NA-22] FX This work was supported by the Defense Treat Reduction Agency, US Department of Energy, Office of Nonproliferation Research and Development, and NA-22. NR 27 TC 20 Z9 20 U1 0 U2 17 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0361-5235 J9 J ELECTRON MATER JI J. Electron. Mater. PD MAR PY 2011 VL 40 IS 3 BP 274 EP 279 DI 10.1007/s11664-010-1504-x PG 6 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA 728GS UT WOS:000287863200005 ER PT J AU Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hartl, C Hoch, M Hormann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L Cerny, K De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Beauceron, S Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Velde, CV Vanlaer, P Wickens, J Adler, V Costantini, S Grunewald, M Klein, B Marinov, A Mccartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L De Jeneret, JD Delaere, C Demin, P Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Damiao, DD Pol, ME Souza, MHG Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A De Araujo, FTD Dias, FA Dias, MAF Tomei, TRFP Gregores, EM Marinho, F Novaes, SF Padula, SS Darmenov, N Dimitrov, L Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Vankov, I Dyulendarova, M Hadjiiska, R Kozhuharov, V Litov, L Marinova, E Mateev, M Pavlov, B Petkov, P Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Wang, J Wang, J Wang, X Wang, Z Xu, M Yang, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhang, L Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Rykaczewski, H Finger, M Finger, M Assran, Y Mahmoud, MA Hektor, A Kadastik, M Kannike, K Muntel, M Raidal, M Rebane, L Azzolini, V Eerola, P Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Klem, J Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Bianchini, L Bluj, M Broutin, C Busson, P Charlot, C Dahms, T Dobrzynski, L de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Besson, A Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chanon, N Chierici, R Contardo, D Depasse, P El Mamouni, H Falkiewicz, A Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Xiao, H Megrelidze, L Roinishvili, V Lomidze, D Anagnostou, G Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M Wittmer, B Ata, M Bender, W Erdmann, M Frangenheim, J Hebbeker, T Hinzmann, A Hoepfner, K Hof, C Klimkovich, T Klingebiel, D Kreuzer, P Lanske, D Magass, C Masetti, G Merschmeyer, M Meyer, A Papacz, P Pieta, H Reithler, H Schmitz, SA Sonnenschein, L Steggemann, J Teyssier, D Bontenackels, M Davids, M Duda, M Flugge, G Geenen, H Giffels, M Ahmad, WH Heydhausen, D Kress, T Kuessel, Y Linn, A Nowack, A Perchalla, L Pooth, O Rennefeld, J Sauerland, P Stahl, A Thomas, M Tornier, D Zoeller, MH Martin, MA Behrenhoff, W Behrens, U Bergholz, M Borras, K Cakir, A Campbell, A Castro, E Dammann, D Eckerlin, G Eckstein, D Flossdorf, A Flucke, G Geiser, A Glushkov, I Hauk, J Jung, H Kasemann, M Katkov, I Katsas, P Kleinwort, C Kluge, H Knutsson, A Krucker, D Kuznetsova, E Lange, W Lohmann, W Mankel, R Marienfeld, M Melzer-Pellmann, IA Meyer, AB Mnich, J Mussgiller, A Olzem, J Parenti, A Raspereza, A Raval, A Schmidt, R Schoerner-Sadenius, T Sen, N Stein, M Tomaszewska, J Volyanskyy, D Walsh, R Wissing, C Autermann, C Bobrovskyi, S Draeger, J Enderle, H Gebbert, U Kaschube, K Kaussen, G Klanner, R Lange, J Mura, B Naumann-Emme, S Nowak, F Pietsch, N Sander, C Schettler, H Schleper, P Schroder, M Schum, T Schwandt, J Srivastava, AK Stadie, H Steinbruck, G Thomsen, J Wolf, R Barth, C Bauer, J Buege, V Chwalek, T De Boer, W Dierlamm, A Dirkes, G Feindt, M Gruschke, J Hackstein, C Hartmann, F Heindl, SM Heinrich, M Held, H Hoffmann, KH Honc, S Kuhr, T Martschei, D Mueller, S Muller, T Niegel, M Oberst, O Oehler, A Ott, J Peiffer, T Piparo, D Quast, G Rabbertz, K Ratnikov, F Renz, M Saout, C Scheurer, A Schieferdecker, P Schilling, FP Schott, G Simonis, HJ Stober, FM Troendle, D Wagner-Kuhr, J Zeise, M Zhukov, V Ziebarth, EB Daskalakis, G Geralis, T Kesisoglou, S Kyriakis, A Loukas, D Manolakos, I Markou, A Markou, C Mavrommatis, C Ntomari, E Petrakou, E Gouskos, L Mertzimekis, TJ Panagiotou, A Evangelou, I Foudas, C Kokkas, P Manthos, N Papadopoulos, I Patras, V Triantis, FA Aranyi, A Bencze, G Boldizsar, L Debreczeni, G Hajdu, C Horvath, D Kapusi, A Krajczar, K Laszlo, A Sikler, F Vesztergombi, G Beni, N Molnar, J Palinkas, J Szillasi, Z Veszpremi, V Raics, P Trocsanyi, ZL Ujvari, B Bansal, S Beri, SB Bhatnagar, V Dhingra, N Gupta, R Jindal, M Kaur, M Kohli, JM Mehta, MZ Nishu, N Saini, LK Sharma, A Singh, AP Singh, JB Singh, SP Ahuja, S Bhattacharya, S Choudhary, BC Gupta, P Jain, S Jain, S Kumar, A Shivpuri, RK Choudhury, RK Dutta, D Kailas, S Kataria, SK Mohanty, AK Pant, LM Shukla, P Aziz, T Guchait, M Gurtu, A Maity, M Majumder, D Majumder, G Mazumdar, K Mohanty, GB Saha, A Sudhakar, K Wickramage, N Banerjee, S Dugad, S Mondal, NK Arfaei, H Bakhshiansohi, H Etesami, SM Fahim, A Hashemi, M Jafari, A Khakzad, M Mohammadi, A Najafabadi, MM Mehdiabadi, SP Safarzadeh, B Zeinali, M Abbrescia, M Barbone, L Calabria, C Colaleo, A Creanza, D De Filippis, N De Palma, M Dimitrov, A Fiore, L 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Redaelli, N Sala, S de Fatis, TT Tancini, V Buontempo, S Montoya, CAC Cimmino, A De Cosa, A De Gruttola, M Fabozzi, F Iorio, AOM Lista, L Merola, M Noli, P Paolucci, P Azzi, P Bacchetta, N Bellan, P Branca, A Carlin, R Checchia, P De Mattia, M Dorigo, T Dosselli, U Gasparini, F Gasparini, U Giubilato, P Gresele, A Kaminskiy, A Lacaprara, S Lazzizzera, I Margoni, M Mazzucato, M Meneguzzo, AT Nespolo, M Passaseo, M Perrozzi, L Pozzobon, N Ronchese, P Simonetto, F Torassa, E Tosi, M Triossi, A Vanini, S Zumerle, G Berzano, U Riccardi, C Torre, P Vitulo, P Biasini, M Bilei, GM Caponeri, B Fano, L Lariccia, P Lucaroni, A Mantovani, G Menichelli, M Nappi, A Santocchia, A Servoli, L Taroni, S Valdata, M Volpe, R Azzurri, P Bagliesi, G Bernardini, J Boccali, T Broccolo, G Castaldi, R D'Agnolo, RT Dell'Orso, R Fiori, F Foa, L Giassi, A Kraan, A Ligabue, F Lomtadze, T Martini, L Messineo, A Palla, F Palmonari, F Sarkar, S Segneri, G Serban, AT Spagnolo, P Tenchini, R Tonelli, G Venturi, A 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Ciesielski, R. Demortier, L. Goulianos, K. Lungu, G. Mesropian, C. Yan, M. Atramentov, O. Barker, A. Duggan, D. Gershtein, Y. Gray, R. Halkiadakis, E. Hidas, D. Hits, D. Lath, A. Panwalkar, S. Patel, R. Richards, A. Rose, K. Schnetzer, S. Somalwar, S. Stone, R. Thomas, S. Cerizza, G. Hollingsworth, M. Spanier, S. Yang, Z. C. York, A. Asaadi, J. Eusebi, R. Gilmore, J. Gurrola, A. Kamon, T. Khotilovich, V. Montalvo, R. Nguyen, C. N. Osipenkov, I. Pivarski, J. Safonov, A. Sengupta, S. Tatarinov, A. Toback, D. Weinberger, M. Akchurin, N. Damgov, J. Jeong, C. Kovitanggoon, K. Lee, S. W. Roh, Y. Sill, A. Volobouev, I. Wigmans, R. Yazgan, E. Appelt, E. Brownson, E. Engh, D. Florez, C. Gabella, W. Johns, W. Kurt, P. Maguire, C. Melo, A. Sheldon, P. Tuo, S. Velkovska, J. Arenton, M. W. Balazs, M. Boutle, S. Buehler, M. Conetti, S. Cox, B. Francis, B. Hirosky, R. Ledovskoy, A. Lin, C. Neu, C. Yohay, R. Gollapinni, S. Harr, R. Karchin, P. E. Lamichhane, P. Mattson, M. Milstene, C. Sakharov, A. Anderson, M. Bachtis, M. Bellinger, J. N. Carlsmith, D. Dasu, S. Efron, J. Gray, L. Grogg, K. S. Grothe, M. Hall-Wilton, R. Herndon, M. Klabbers, P. Klukas, J. Lanaro, A. Lazaridis, C. Leonard, J. Loveless, R. Mohapatra, A. Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering ID CARLO GENERATOR CASCADE; CCFM AB A measurement of the angular correlations between beauty and anti-beauty hadrons (B (B) over bar) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primary-interaction vertex. The differential B (B) over bar production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 pb(-1), shows that a sizable fraction of the B (B) over bar pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of b (b) over bar production. C1 [Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. 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J.; Panagiotou, A.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Debreczeni, G.; Hajdu, C.; Horvath, D.; Kapusi, A.; Krajczar, K.; Laszlo, A.; Sikler, F.; Vesztergombi, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J. B.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Bhattacharya, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kataria, S. K.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res, EHEP, Mumbai 400005, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res, HECR, Mumbai 400005, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Res & Fundamental Sci IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Dimitrov, A.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Gonzi, S.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gonzi, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] Ist Nazl Fis Nucl, Sez Milano Biccoca, I-20133 Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] Ist Nazl Fis Nucl, Sezione Napoli, I-80125 Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Branca, A.; Carlin, R.; Checchia, P.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Gresele, A.; Kaminskiy, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Passaseo, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Triossi, A.; Vanini, S.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Kaminskiy, A.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zumerle, G.] Univ Padua, Padua, Italy. [Gresele, A.; Lazzizzera, I.] Univ Trento, Padua, Italy. [Berzano, U.; Riccardi, C.; Torre, P.; Vitulo, P.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Riccardi, C.; Torre, P.; Vitulo, P.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Servoli, L.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Sarkar, S.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Sarkar, S.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Nourbakhsh, S.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Rahatlou, S.; Rovelli, C.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius State Univ, Vilnius, Lithuania. [Castilla-Valdez, H.; De la Cruz-Burelo, E.; Lopez-Fernandez, R.; Sanchez-Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Allfrey, P.; Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Martins, P.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Silva, P.; Varela, J.; Woehri, H. K.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Belotelov, I.; Bunin, P.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Bondar, N.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. 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J.; Piedra Gomez, J.; Rodrigo, T.; Ruiz-Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Darmenov, N.; Genchev, V.; Iaydjiev, P.; Hajdu, C.; Mohanty, A. K.; Lusito, L.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Ghezzi, A.; Nespolo, M.; Perrozzi, L.; Lucaroni, A.; Volpe, R.; Boccali, T.; Tonelli, G.; Venturi, A.; Pandolfi, F.; Botta, C.; Graziano, A.; Pelliccioni, M.; Pereira, A. Vilela; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Breuker, H.; Brona, G.; Bunkowski, K.; Camporesi, T.; Cano, E.; Cerminara, G.; Christiansen, T.; Coarasa Perez, J. A.; Cure, B.; D'Enterria, D.; De Roeck, A.; Di Guida, S.; Ramos, F. Duarte; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Harvey, J.; Hegeman, J.; Hegner, B.; Henderson, C.; Hesketh, G.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Kaadze, K.; Karavakis, E.; Lecoq, P.; Lourenco, C.; Macpherson, A.; Maeki, T.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Polese, G.; Racz, A.; Rodrigues Antunes, J.; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stoeckli, F.; Stoye, M.; Tropea, P.; Tsirou, A.; Tsyganov, A.; Veres, G. 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K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Otiougova, P.; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Chen, W. T.; Dutta, S.; Go, A.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Mekterovic, D.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Demir, Z.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Guelmez, E.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Inst Phys & Technol, Ctr Nat Sci, Kharkov, Ukraine. [Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hansen, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Field, S. Wake; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA. [Bose, T.; Jarrin, E. Carrera; Fantasia, C.; Heister, A.; John, J. St.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Borgia, M. A.; Breedon, R.; De la Barca Sanchez, M. Calderon; Cebra, D.; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Felcini, M.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Luthra, A.; Nguyen, H.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Muelmenstaedt, J.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Kcira, D.; Litvine, V.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Terentyev, N.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Gaz, A.; Heyburn, B.; Luiggi Lopez, E.; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Chatterjee, A.; Das, S.; Eggert, N.; Fields, L. J.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kuznetsov, V.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Riley, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Banerjee, S.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Demarteau, M.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hahn, A.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; James, E.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Kilminster, B.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Leonidopoulos, C.; Limon, P.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; McCauley, T.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Popescu, S.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Soha, A.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Askew, A.; Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Garcia-Solis, E. J.; Gauthier, L.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; Malek, M.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Cankocak, K.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Radicci, V.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Lundstedt, C.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Warchol, J.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Ramirez Vargas, J. E.; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gecse, Z.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Kress, M.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Liu, J. H.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10021 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA. [Asaadi, J.; Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Nguyen, C. N.; Osipenkov, I.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Tuo, S.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Buehler, M.; Conetti, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI USA. [Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Loveless, R.; Mohapatra, A.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA. [Gregores, E. M.] Univ Fed ABC, Santo Andre, Brazil. [Assran, Y.] Suez Canal Univ, Suez, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Krajczar, K.; Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary. [Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey. [Cerci, S.] Adiyaman Univ, Adiyaman, Turkey. [Sogut, K.] Mersin Univ, Mersin, Turkey. [Demir, D.] Izmir Inst Technol, Izmir, Turkey. [Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey. [Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey. [Popescu, S.] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Bucharest, Romania. [Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany. [Lacaprara, S.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy. [Martini, L.] Univ Siena, I-53100 Siena, Italy. [Bell, A. J.] Univ Geneva, Geneva, Switzerland. [Rolandi, G.] Ist Nazl Fis Nucl, Scuola Normale & Sez, Pisa, Italy. [Sonmez, N.] Ege Univ, Izmir, Turkey. [Cankocak, K.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey. RP Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. RI Seixas, Joao/F-5441-2013; Vilela Pereira, Antonio/L-4142-2016; Sznajder, Andre/L-1621-2016; Haj Ahmad, Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Paulini, Manfred/N-7794-2014; Gerbaudo, Davide/J-4536-2012; Tinoco Mendes, Andre David/D-4314-2011; Mignerey, Alice/D-6623-2011; Ganjour, Serguei/D-8853-2011; Ruiz, Alberto/E-4473-2011; Stahl, Achim/E-8846-2011; Hektor, Andi/G-1804-2011; Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Bolton, Tim/A-7951-2012; Krammer, Manfred/A-6508-2010; Lokhtin, Igor/D-7004-2012; Kodolova, Olga/D-7158-2012; Dudko, Lev/D-7127-2012; Katkov, Igor/E-2627-2012; Hoorani, Hafeez/D-1791-2013; Andreev, Vladimir/M-8665-2015; Cakir, Altan/P-1024-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012; Ozdemir, Kadri/P-8058-2014; Della Ricca, Giuseppe/B-6826-2013; Azarkin, Maxim/N-2578-2015; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; D'Alessandro, Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Trocsanyi, Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; My, Salvatore/I-5160-2015; Matorras, Francisco/I-4983-2015; Ragazzi, Stefano/D-2463-2009; Muelmenstaedt, Johannes/K-2432-2015; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Josa, Isabel/K-5184-2014; Gonzalez Suarez, Rebeca/L-6128-2014; Calvo Alamillo, Enrique/L-1203-2014; Vogel, Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Benussi, Luigi/O-9684-2014; Russ, James/P-3092-2014; Ferreira Dias, Marco Andre/P-6667-2014; Dahms, Torsten/A-8453-2015; Grandi, Claudio/B-5654-2015; Ahmed, Ijaz/E-9144-2015; Lazzizzera, Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Alves, Gilvan/C-4007-2013; Codispoti, Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Rolandi, Luigi (Gigi)/E-8563-2013; Zalewski, Piotr/H-7335-2013; Ivanov, Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Wimpenny, Stephen/K-8848-2013; Boos, Eduard/D-9748-2012; Snigirev, Alexander/D-8912-2012; Servoli, Leonello/E-6766-2012; Tomei, Thiago/E-7091-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra /G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Azzi, Patrizia/H-5404-2012; Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Jeitler, Manfred/H-3106-2012; Venturi, Andrea/J-1877-2012; de Jesus Damiao, Dilson/G-6218-2012 OI Seixas, Joao/0000-0002-7531-0842; Vilela Pereira, Antonio/0000-0003-3177-4626; Sznajder, Andre/0000-0001-6998-1108; Haj Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Paulini, Manfred/0000-0002-6714-5787; Gerbaudo, Davide/0000-0002-4463-0878; Tinoco Mendes, Andre David/0000-0001-5854-7699; Ruiz, Alberto/0000-0002-3639-0368; Stahl, Achim/0000-0002-8369-7506; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Krammer, Manfred/0000-0003-2257-7751; Dudko, Lev/0000-0002-4462-3192; Katkov, Igor/0000-0003-3064-0466; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Della Ricca, Giuseppe/0000-0003-2831-6982; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; My, Salvatore/0000-0002-9938-2680; Matorras, Francisco/0000-0003-4295-5668; Ragazzi, Stefano/0000-0001-8219-2074; Muelmenstaedt, Johannes/0000-0003-1105-6678; Rovelli, Tiziano/0000-0002-9746-4842; Gonzalez Suarez, Rebeca/0000-0002-6126-7230; Calvo Alamillo, Enrique/0000-0002-1100-2963; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Dahms, Torsten/0000-0003-4274-5476; Grandi, Claudio/0000-0001-5998-3070; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Wimpenny, Stephen/0000-0003-0505-4908; Servoli, Leonello/0000-0003-1725-9185; Tomei, Thiago/0000-0002-1809-5226; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; de Jesus Damiao, Dilson/0000-0002-3769-1680 FU FMSR (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN (China); CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences (Estonia); NICPB (Estonia); Academy of Finland (Finland); ME (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVES-TAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST (Russia); MAE (Russia); MSTD (Serbia); MICINN (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK (Turkey); TAEK (Turkey); STFC (United Kingdom); DOE (USA); NSF (USA) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVES-TAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 36 TC 8 Z9 8 U1 2 U2 38 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 MAR PY 2011 IS 3 AR 136 DI 10.1007/JHEP03(2011)136 PG 35 WC Physics, Particles & Fields SC Physics GA 747BM UT WOS:000289295300064 ER PT J AU Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hartl, C Hoch, M Hormann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Wagner, P Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L Cerny, K De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Adler, V Beauceron, S Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L Velde, CV Vanlaer, P Wickens, J Costantini, S Grunewald, M Klein, B Marinov, A McCartin, J Ryckbosch, D Thyssen, F Tytgat, M Vanelderen, L Verwilligen, P Walsh, S Zaganidis, N Basegmez, S Bruno, G Caudron, J Ceard, L De Jeneret, JD Delaere, C Demin, P Favart, D Giammanco, A Gregoire, G Hollar, J Lemaitre, V Liao, J Militaru, O Ovyn, S Pagano, D Pin, A Piotrzkowski, K Schul, N Beliy, N Caebergs, T Daubie, E Alves, GA Damiao, DD Pol, ME Souza, MHG Carvalho, W Da Costa, EM Martins, CD De Souza, SF Mundim, L Nogima, H Oguri, V Da Silva, WLP Santoro, A Do Amaral, SMS Sznajder, A Dias, FA Dias, MAF Tomei, TRFP Gregores, EM Marinho, F Novaes, SF Padula, SS Darmenov, N Dimitrov, L Genchev, V Iaydjiev, P Piperov, S Rodozov, M Stoykova, S Sultanov, G Tcholakov, V Trayanov, R Vankov, I Dyulendarova, M Hadjiiska, R Kozhuharov, V Litov, L Marinova, E Mateev, M Pavlov, B Bian, JG Chen, GM Chen, HS Jiang, CH Liang, D Liang, S Wang, J Wang, J Wang, X Wang, Z Xu, M Yang, M Zang, J Zhang, Z Ban, Y Guo, S Guo, Y Li, W Mao, Y Qian, SJ Teng, H Zhang, L Zhu, B Zou, W Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Rykaczewski, H Assran, Y Mahmoud, MA Hektor, A Kadastik, M Kannike, K Muentel, M Raidal, M Rebane, L Azzolini, V Eerola, P Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Klem, J Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Korpela, A Tuuva, T Sillou, D Besancon, M Choudhury, S Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M Verrecchia, P Baffioni, S Beaudette, F Bianchini, L Bluj, M Broutin, C Busson, P Charlot, C Dahms, T Dobrzynski, L de Cassagnac, RG Haguenauer, M Mine, P Mironov, C Ochando, C Paganini, P Sabes, D Salerno, R Sirois, Y Thiebaux, C Wyslouch, B Zabi, A Agram, JL Andrea, J Besson, A Bloch, D Bodin, D Brom, JM Cardaci, M Chabert, EC Collard, C Conte, E Drouhin, F Ferro, C Fontaine, JC Gele, D Goerlach, U Greder, S Juillot, P Karim, M Le Bihan, AC Mikami, Y Van Hove, P Fassi, F Mercier, D Baty, C Beaupere, N Bedjidian, M Bondu, O Boudoul, G Boumediene, D Brun, H Chanon, N Chierici, R Contardo, D Depasse, P El Mamouni, H Falkiewicz, A Fay, J Gascon, S Ille, B Kurca, T Le Grand, T Lethuillier, M Mirabito, L Perries, S Sordini, V Tosi, S Tschudi, Y Verdier, P Xiao, H Roinishvili, V Lomidze, D Anagnostou, G Edelhoff, M Feld, L Heracleous, N Hindrichs, O Jussen, R Klein, K Merz, J Mohr, N Ostapchuk, A Perieanu, A Raupach, F Sammet, J Schael, S Sprenger, D Weber, H Weber, M Wittmer, B Ata, M Bender, W Erdmann, M Frangenheim, J Hebbeker, T Hinzmann, A Hoepfner, K Hof, C Klimkovich, T Klingebiel, D Kreuzer, P Lanske, D Magass, C Masetti, G Merschmeyer, M Meyer, A Papacz, P Pieta, H Reithler, H Schmitz, SA Sonnenschein, L Steggemann, J Teyssier, D Bontenackels, M Davids, M Duda, M Flugge, G Geenen, H Giffels, M Ahmad, WH Heydhausen, D Kress, T Kuessel, Y Linn, A Nowack, A Perchalla, L Pooth, O Rennefeld, J Sauerland, P Stahl, A Thomas, M Tornier, D Zoeller, MH Martin, MA Behrenhoff, W Behrens, U Bergholz, M Borras, K Cakir, A Campbell, A Castro, E Dammann, D Eckerlin, G Eckstein, D Flossdorf, A Flucke, G Geiser, A Glushkov, I Hauk, J Jung, H Kasemann, M Katkov, I Katsas, P Kleinwort, C Kluge, H Knutsson, A Krucker, D Kuznetsova, E Lange, W Lohmann, W Mankel, R Marienfeld, M Melzer-Pellmann, IA Meyer, AB Mnich, J Mussgiller, A Olzem, J Parenti, A Raspereza, A Raval, A Schmidt, R Schoerner-Sadenius, T Sen, N Stein, M Tomaszewska, J Volyanskyy, D Walsh, R Wissing, C Autermann, C Bobrovskyi, S Draeger, J Enderle, H Gebbert, U Kaschube, K Kaussen, G Klanner, R Lange, J Mura, B Naumann-Emme, S Nowak, F Pietsch, N Sander, C Schettler, H Schleper, P Schroder, M Schum, T Schwandt, J Srivastava, AK Stadie, H Steinbruck, G Thomsen, J Wolf, R Barth, C Bauer, J Buege, V Chwalek, T De Boer, W Dierlamm, A Dirkes, G Feindt, M Gruschke, J Hackstein, C Hartmann, F Heindl, SM Heinrich, M Held, H Hoffmann, KH Honc, S Kuhr, T Martschei, D Mueller, S Muller, T Niegel, M Oberst, O Oehler, A Ott, J Peiffer, T Piparo, D Quast, G Rabbertz, K Ratnikov, F Renz, M Saout, C Scheurer, A Schieferdecker, P Schilling, FP Schott, G Simonis, HJ Stober, FM Troendle, D Wagner-Kuhr, J Zeise, M Zhukov, V Ziebarth, EB Daskalakis, G Geralis, T Kesisoglou, S Kyriakis, A Loukas, D Manolakos, I Markou, A Markou, C Mavrommatis, C Ntomari, E Petrakou, E Gouskos, L Mertzimekis, TJ Panagiotou, A Evangelou, I Foudas, C Kokkas, P Manthos, N Papadopoulos, I Patras, V Triantis, FA Aranyi, A Bencze, G Boldizsar, L Debreczeni, G Hajdu, C Horvath, D Kapusi, A Krajczar, K Laszlo, A Sikler, F Vesztergombi, G Beni, N Molnar, J Palinkas, J Szillasi, Z Veszpremi, V Raics, P Trocsanyi, ZL Ujvari, B Bansal, S Beri, SB Bhatnagar, V Dhingra, N Gupta, R Jindal, M Kaur, M Kohli, JM Mehta, MZ Nishu, N Saini, LK Sharma, A Sharma, R Singh, P Singh, JB Singh, SP Ahuja, S Bhattacharya, S Choudhary, BC Gupta, P Jain, S Jain, S Kumar, A Shivpuri, RK Choudhury, RK Dutta, D Kailas, S Kataria, SK Mohanty, AK Pant, LM Shukla, P Aziz, T Guchait, M Gurtu, A Maity, M Majumder, D Majumder, G Mazumdar, K Mohanty, GB Saha, A Sudhakar, K Wickramage, N Banerjee, S Dugad, S Mondal, NK Arfaei, H Bakhshiansohi, H Etesami, SM Fahim, A Hashemi, M Jafari, A Khakzad, M Mohammadi, A Najafabadi, MM Mehdiabadi, SP Safarzadeh, B Zeinali, M Abbrescia, M Barbone, L Calabria, C Colaleo, A Creanza, D De Filippis, N De Palma, M Dimitrov, A Fiore, L Iaselli, G Lusito, L Maggi, G Maggi, M Manna, N Marangelli, B My, S Nuzzo, S Pacifico, N Pierro, GA Pompili, A Pugliese, G Romano, F Roselli, G Selvaggi, G 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Gray, R. Halkiadakis, E. Hidas, D. Hits, D. Lath, A. Panwalkar, S. Patel, R. Richards, A. Rose, K. Schnetzer, S. Somalwar, S. Stone, R. Thomas, S. Cerizza, G. Hollingsworth, M. Spanier, S. Yang, Z. C. York, A. Asaadi, J. Eusebi, R. Gilmore, J. Gurrola, A. Kamon, T. Khotilovich, V. Montalvo, R. Nguyen, C. N. Osipenkov, I. Pivarski, J. Safonov, A. Sengupta, S. Tatarinov, A. Toback, D. Weinberger, M. Akchurin, N. Bardak, C. Damgov, J. Jeong, C. Kovitanggoon, K. Lee, S. W. Mane, P. Roh, Y. Sill, A. Volobouev, I. Wigmans, R. Yazgan, E. Appelt, E. Brownson, E. Engh, D. Florez, C. Gabella, W. Johns, W. Kurt, P. Maguire, C. Melo, A. Sheldon, P. Velkovska, J. Arenton, M. W. Balazs, M. Boutle, S. Buehler, M. Conetti, S. Cox, B. Francis, B. Hirosky, R. Ledovskoy, A. Lin, C. Neu, C. Yohay, R. Gollapinni, S. Harr, R. Karchin, P. E. Lamichhane, P. Mattson, M. Milstene, C. Sakharov, A. Anderson, M. Bachtis, M. Bellinger, J. N. Carlsmith, D. Dasu, S. Efron, J. Gray, L. Grogg, K. S. Grothe, M. Hall-Wilton, R. Herndon, M. Klabbers, P. Klukas, J. Lanaro, A. Lazaridis, C. Leonard, J. Loveless, R. Mohapatra, A. Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Inclusive b-hadron production cross section with muons in pp collisions at root s=7 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering ID HEAVY-QUARK PRODUCTION; P(P)OVER-BAR COLLISIONS; HADROPRODUCTION; FACTORIZATION AB A measurement of the b-hadron production cross section in proton-proton collisions at root s = 7 TeV is presented. The dataset, corresponding to 85 nb(-1), was recorded with the CMS experiment at the LHC using a low-threshold single-muon trigger. Events are selected by the presence of a muon with transverse momentum p(T)(mu) > 6 GeV with respect to the beam direction and pseudorapidity vertical bar eta(mu)vertical bar < 2.1. The transverse momentum of the muon with respect to the closest jet discriminates events containing b hadrons from background. The inclusive b-hadron production cross section is presented as a function of muon transverse momentum and pseudorapidity. The measured total cross section in the kinematic acceptance is sigma(pp -> b + X -> mu + X') = 1.32 +/- 0.01(stat) +/- 0: 30(syst) +/- 0.15(lumi)mu b. C1 [Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hammer, J.; Haensel, S.; Hartl, C.; Hoch, M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kasieczka, G.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. -E.] OeAW, Inst Hochenergiephys, Vienna, Austria. 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[Darmenov, N.; Dimitrov, L.; Genchev, V.; Iaydjiev, P.; Piperov, S.; Rodozov, M.; Stoykova, S.; Sultanov, G.; Tcholakov, V.; Trayanov, R.; Vankov, I.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria. [Dyulendarova, M.; Hadjiiska, R.; Kozhuharov, V.; Litov, L.; Marinova, E.; Mateev, M.; Pavlov, B.] Univ Sofia, BU-1126 Sofia, Bulgaria. [Bian, J. G.; Chen, G. M.; Chen, H. S.; Jiang, C. H.; Liang, D.; Liang, S.; Wang, J.; Wang, J.; Wang, X.; Wang, Z.; Xu, M.; Yang, M.; Zang, J.; Zhang, Z.] Inst High Energy Phys, Beijing 100039, Peoples R China. [Ban, Y.; Guo, S.; Guo, Y.; Li, W.; Mao, Y.; Qian, S. J.; Teng, H.; Zhang, L.; Zhu, B.; Zou, W.] Peking Univ, State Key Lab Nucl Phys & Tech, Beijing 100871, Peoples R China. [Cabrera, A.; Gomez Moreno, B.; Ocampo Rios, A. A.; Osorio Oliveros, A. F.; Sanabria, J. C.] Univ Los Andes, Bogota, Colombia. [Godinovic, N.; Lelas, D.; Lelas, K.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia. [Plestina, R.; Baffioni, S.; Beaudette, F.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Charlot, C.; Dahms, T.; Dobrzynski, L.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Bernet, C.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France. [Antunovic, Z.; Dzelalija, M.] Univ Split, Split, Croatia. [Brigljevic, V.; Duric, S.; Kadija, K.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia. [Attikis, A.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.; Rykaczewski, H.] Univ Cyprus, Nicosia, Cyprus. [Assran, Y.; Mahmoud, M. A.] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt. [Assran, Y.] Suez Canal Univ, Suez, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Hektor, A.; Kadastik, M.; Kannike, K.; Muentel, M.; Raidal, M.; Rebane, L.] NICPB, Tallinn, Estonia. [Azzolini, V.; Eerola, P.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Czellar, S.; Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Klem, J.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Sillou, D.] CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, Annecy Le Vieux, France. [Besancon, M.; Choudhury, S.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Agram, J. -L.; Andrea, J.; Besson, A.; Bloch, D.; Bodin, D.; Brom, J. -M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A. -C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, CNRS,IN2P3, Strasbourg, France. [Fassi, F.; Mercier, D.] IN2P3, Ctr Calcul, Villeurbanne, France. [Baty, C.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chanon, N.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Falkiewicz, A.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.; Xiao, H.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France. [Roinishvili, V.] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Rep of Georgia. [Lomidze, D.] Tbilisi State Univ, Inst High Energy Phys & Informatizat, GE-380086 Tbilisi, Rep of Georgia. [Anagnostou, G.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Ata, M.; Bender, W.; Erdmann, M.; Frangenheim, J.; Hebbeker, T.; Hinzmann, A.; Hoepfner, K.; Hof, C.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Magass, C.; Masetti, G.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Yang, M.; Li, W.; Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Agram, J. -L.; Conte, E.; Drouhin, F.; Fontaine, J. -C.; Karim, M.] Univ Haute Alsace, Mulhouse, France. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Glushkov, I.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Parenti, A.; Raspereza, A.; Raval, A.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Stein, M.; Tomaszewska, J.; Volyanskyy, D.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, Cottbus, Germany. [Autermann, C.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Kaschube, K.; Kaussen, G.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schroeder, M.; Schum, T.; Schwandt, J.; Srivastava, A. K.; Stadie, H.; Steinbrueck, G.; Thomsen, J.; Wolf, R.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heindl, S. M.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Piparo, D.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Klyukhin, V.; Kodolova, O.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Sarycheva, L.; Savrin, V.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Ntomari, E.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Debreczeni, G.; Hajdu, C.; Horvath, D.; Kapusi, A.; Krajczar, K.; Laszlo, A.; Sikler, F.; Vesztergombi, G.; Pasztor, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Krajczar, K.; Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Gupta, R.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Sharma, R.; Singh, A. P.; Singh, J. B.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Bhattacharya, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Jain, S.; Kumar, A.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kataria, S. K.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India. [Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Studies Theoret Phys & Math IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Dimitrov, A.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Genta, C.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] Ist Nazl Fis Nucl, Sez Milano Biccoca, I-20133 Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Martelli, A.; Massironi, A.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy. [Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy. [Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Conti, E.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Gresele, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Knutsson, A.; Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Gresele, A.; Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Lacaprara, S.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy. [Baesso, P.; Berzano, U.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Servoli, L.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Sarkar, S.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Sarkar, S.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Ambroglini, F.; Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Ambroglini, F.; Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Univ & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Kim, H.; Choi, M.; Kang, S.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius Univ, Vilnius, Lithuania. [Castilla Valdez, H.; De la Cruz Burelo, E.; Lopez-Fernandez, R.; Sanchez Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Allfrey, P.; Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland. [Almeida, N.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Martins, P.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Silva, P.; Varela, J.; Woehri, H. K.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Belotelov, I.; Bunin, P.; Finger, M.; Finger, M., Jr.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Volodko, A.; Zarubin, A.; Smirnov, I.] Joint Inst Nucl Res, Dubna, Russia. [Bondar, N.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Dubinin, M.; Spiropulu, M.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Kcira, D.; Litvine, V.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Vinca Inst Nucl Sci, Belgrade 11001, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Colino, N.; De la Cruz, B.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Willmott, C.] CIEMAT, E-28040 Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chamizo Llatas, M.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Ruiz Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, IFCA, E-39005 Santander, Spain. [Andreev, V.; Felcini, M.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Bell, A. J.] Univ Geneva, Geneva, Switzerland. [Rolandi, G.] Ist Nazl Fis Nucl, Scuola Normale, Pisa, Italy. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.] Paul Scherrer Inst, Villigen, Switzerland. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Radicci, V.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Weber, M.; Bortignon, P.; Caminada, L.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Chen, W. T.; Dutta, S.; Go, A.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Knutsson, A.; Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey. [Cerci, S.] Adiyaman Univ, Adiyaman, Turkey. [Milenovic, P.] Mersin Univ, Mersin, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Demir, D.] Izmir Inst Technol, Izmir, Turkey. [Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey. [Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey. [Sonmez, N.] Ege Univ, Izmir, Turkey. [Levchuk, L.] Kharkov Inst Phys & Technol, Natl Sci Ctr, Kharkov, Ukraine. [Hansen, M.; Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA. [Bose, T.; Jarrin, E. Carrera; Clough, A.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Borgia, M. A.; Breedon, R.; Sanchez, M. Calderon De la Barca; Cebra, D.; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Liu, H.; Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Luthra, A.; Nguyen, H.; Pasztor, G.; Satpathy, A.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Muelmenstaedt, J.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; McColl, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Terentyev, N.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Chatterjee, A.; Das, S.; Eggert, N.; Fields, L. J.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kuznetsov, V.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Riley, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Banerjee, S.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Demarteau, M.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hahn, A.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; James, E.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Kilminster, B.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Limon, P.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; McCauley, T.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Popescu, S.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Soha, A.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Popescu, S.] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Bucharest, Romania. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Quertenmont, L.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Garcia-Solis, E. J.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; Malek, M.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Cankocak, K.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Cankocak, K.] Istanbul Tech Univ, Istanbul, Turkey. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Lundstedt, C.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Kaadze, K.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Schmitt, M.; Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Warchol, J.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gecse, Z.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Liu, J. H.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Ciesielski, R.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10021 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA. [Asaadi, J.; Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Nguyen, C. N.; Osipenkov, I.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. 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RI Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Vogel, Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Benussi, Luigi/O-9684-2014; Russ, James/P-3092-2014; Ferreira Dias, Marco Andre/P-6667-2014; Dahms, Torsten/A-8453-2015; Ahmed, Ijaz/E-9144-2015; Lazzizzera, Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; D'Alessandro, Raffaello/F-5897-2015; Belyaev, Alexander/F-6637-2015; Wimpenny, Stephen/K-8848-2013; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Alves, Gilvan/C-4007-2013; Codispoti, Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Klyukhin, Vyacheslav/D-6850-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; 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Cakir, Altan/P-1024-2015 OI Calvo Alamillo, Enrique/0000-0002-1100-2963; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Dahms, Torsten/0000-0003-4274-5476; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Wimpenny, Stephen/0000-0003-0505-4908; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Klyukhin, Vyacheslav/0000-0002-8577-6531; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; Katkov, Igor/0000-0003-3064-0466; Servoli, Leonello/0000-0003-1725-9185; Tomei, Thiago/0000-0002-1809-5226; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; de Jesus Damiao, Dilson/0000-0002-3769-1680; Krammer, Manfred/0000-0003-2257-7751; Tinoco Mendes, Andre David/0000-0001-5854-7699; Ruiz, Alberto/0000-0002-3639-0368; Stahl, Achim/0000-0002-8369-7506; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Dudko, Lev/0000-0002-4462-3192; Levchenko, Petr/0000-0003-4913-0538; Varela, Joao/0000-0003-2613-3146; Heath, Helen/0000-0001-6576-9740; Carrera, Edgar/0000-0002-0857-8507; Sguazzoni, Giacomo/0000-0002-0791-3350; Ligabue, Franco/0000-0002-1549-7107; Diemoz, Marcella/0000-0002-3810-8530; Tricomi, Alessia Rita/0000-0002-5071-5501; Fassi, Farida/0000-0002-6423-7213; Ghezzi, Alessio/0000-0002-8184-7953; bianco, stefano/0000-0002-8300-4124; Demaria, Natale/0000-0003-0743-9465; Benaglia, Andrea Davide/0000-0003-1124-8450; Covarelli, Roberto/0000-0003-1216-5235; Ciulli, Vitaliano/0000-0003-1947-3396; Martelli, Arabella/0000-0003-3530-2255; Bean, Alice/0000-0001-5967-8674; Longo, Egidio/0000-0001-6238-6787; Di Matteo, Leonardo/0000-0001-6698-1735; Baarmand, Marc/0000-0002-9792-8619; Menasce, Dario Livio/0000-0002-9918-1686; Attia Mahmoud, Mohammed/0000-0001-8692-5458; Bilki, Burak/0000-0001-9515-3306; Lloret Iglesias, Lara/0000-0002-0157-4765; Sznajder, Andre/0000-0001-6998-1108; Haj Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Paulini, Manfred/0000-0002-6714-5787; Gerbaudo, Davide/0000-0002-4463-0878; Vieira de Castro Ferreira da Silva, Pedro Manuel/0000-0002-5725-041X; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Della Ricca, Giuseppe/0000-0003-2831-6982; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Vilela Pereira, Antonio/0000-0003-3177-4626; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; Matorras, Francisco/0000-0003-4295-5668; My, Salvatore/0000-0002-9938-2680; Ragazzi, Stefano/0000-0001-8219-2074; Muelmenstaedt, Johannes/0000-0003-1105-6678; Rovelli, Tiziano/0000-0002-9746-4842; FU FMSR (Austria); FNRS; FWO (Belgium); CNPq; CAPES; FAPERJ; FAPESP (Brazil); MES (Bulgaria); CERN; CAS; MoST; NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences; NICPB (Estonia); Academy of Finland; ME; HIP (Finland); CEA; CNRS/IN2P3 (France); BMBF; DFG; HGF (Germany); GSRT (Greece); OTKA; NKTH (Hungary); DAE; DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF; WCU (Korea); LAS (Lithuania); CINVESTAV; CONACYT; SEP; UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST; MAE (Russia); MSTD (Serbia); MICINN; CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK; TAEK (Turkey); STFC (United Kingdom); DOE; NSF (USA) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 47 TC 12 Z9 12 U1 2 U2 36 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 MAR PY 2011 IS 3 AR 090 DI 10.1007/JHEP03(2011)090 PG 29 WC Physics, Particles & Fields SC Physics GA 747BM UT WOS:000289295300018 ER PT J AU Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Eroe, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hartl, C Hoch, M Hoermann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L Ceard, L Cerny, K De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Adler, V Beauceron, S Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De Lentdecker, G Dero, V Gay, APR Hammad, GH Hreus, T Marage, PE Thomas, L 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Mohapatra, A. Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Search for heavy stable charged particles in pp collisions at root s=7 TeV SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Hadron-Hadron Scattering ID DYNAMICAL SUPERSYMMETRY BREAKING; HADRON COLLIDERS AB The result of a search at the LHC for heavy stable charged particles produced in pp collisions at root s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3.1 pb(-1). Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0.1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c(2), using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c(2) is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors. C1 [Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. [Adam, W.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V. M.; Hammer, J.; Haensel, S.; Hartl, C.; Hoch, M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kasieczka, G.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. -E.] Inst Hochenergiephys OeAW, Vienna, Austria. 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F.; Sanabria, C.] Univ Los Andes, Bogota, Colombia. [Godinovic, N.; Lelas, D.; Lelas, K.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia. [Antunovic, Z.; Dzelalija, M.] Univ Split, Split, Croatia. [Brigljevic, V.; Duric, S.; Kadija, K.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia. [Attikis, A.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.; Rykaczewski, H.] Univ Cyprus, Nicosia, Cyprus. [Assran, Y.; Mahmoud, M. A.] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt. [Hektor, A.; Kadastik, M.; Kannike, K.; Muentel, M.; Raidal, M.; Rebane, L.] NICPB, Tallinn, Estonia. [Azzolini, V.; Eerola, P.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Czellar, S.; Harkonen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Klem, J.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Sillou, D.] IN2P3 CNRS, Lab Annecy Le Vieux Phys Particules, Annecy Le Vieux, France. [Besancon, M.; Choudhury, S.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Plestina, R.; Baffioni, S.; Beaudette, F.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Charlot, C.; Dahms, T.; Dobrzynski, L.; de Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Bernet, C.] IN2P3 CNRS, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France. [Agram, J. -L.; Andrea, J.; Besson, A.; Bloch, D.; Bodin, D.; Brom, J. -M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A. -C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, CNRS IN2P3, Inst Pluridisciplinaire Hubert Curien, Strasbourg, France. [Fassi, F.; Mercier, D.] Inst Natl Phys Nucl & Phys Particules IN2P3, Ctr Calcul, Villeurbanne, France. [Baty, C.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chanon, N.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Falkiewicz, A.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.; Xiao, H.] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France. [Roinishvili, V.] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Rep of Georgia. [Anagnostou, G.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Ata, M.; Bender, W.; Erdmann, M.; Frangenheim, J.; Hebbeker, T.; Hinzmann, A.; Hoepfner, K.; Hof, C.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Magass, C.; Masetti, G.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Glushkov, I.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Parenti, A.; Raspereza, A.; Raval, A.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Stein, M.; Tomaszewska, J.; Volyanskyy, D.; Walsh, R.; Wissing, C.] DESY, Hamburg, Germany. [Autermann, C.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Kaschube, K.; Kaussen, G.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schroeder, M.; Schum, T.; Schwandt, J.; Srivastava, A. K.; Stadie, H.; Steinbrueck, G.; Thomsen, J.; Wolf, R.] Univ Hamburg, Hamburg, Germany. [Barth, C.; Bauer, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heindl, M.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Piparo, D.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Debreczeni, G.; Hajdu, C.; Horvath, D.; Kapusi, A.; Krajczar, K.; Laszlo, A.; Sikler, F.; Vesztergombi, G.; Pasztor, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, H-4012 Debrecen, Hungary. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J. B.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Bhattacharya, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Jain, S.; Kumar, A.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kataria, S. K.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Bombay, Maharashtra, India. [Guchait, M.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Bombay, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Studies Theoret Phys & Math, IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Dimitrov, A.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Brigliadori, L.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Primavera, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Meneghelli, M.; Navarria, F. L.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Genta, C.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] Ist Nazl Fis Nucl, Sez Milano Biccoca, I-20133 Milan, Italy. [Benaglia, A.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy. [Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Conti, E.; De Mattia, M.; Dorigo, T.; Fanzago, F.; Gasparini, F.; Giubilato, P.; Gonella, F.; Gresele, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Nespolo, M.; Pegoraro, M.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Torassa, E.; Tosi, M.; Triossi, A.; Vanini, S.; Ventura, S.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Giubilato, P.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Tosi, M.; Vanini, S.; Zumerle, G.] Univ Padua, Padua, Italy. [Gresele, A.; Lazzizzera, I.] Univ Trento, Padua, Italy. [Baesso, P.; Berzano, U.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.; Adiguzel, A.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Baesso, P.; Riccardi, C.; Torre, P.; Vitulo, P.; Viviani, C.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Servoli, L.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Sarkar, S.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Bernardini, J.; Fiori, F.; Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Foa, L.; Ligabue, F.; Sarkar, S.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Colafranceschi, S.] Univ Roma La Sapienza, Fac Ingn, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Ambroglini, F.; Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Ambroglini, F.; Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Choi, S.; Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius State Univ, Vilnius, Lithuania. [Castilla Valdez, H.; De La Cruz Burelo, E.; Lopez-Fernandez, R.; Sanchez Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Allfrey, P.; Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Bluj, M.; Frueboes, T.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; David, A.; Faccioli, P.; Ferreira Parracho, P. G.; Gallinaro, M.; Martins, P.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Silva, P.; Varela, J.; Woehri, H. K.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Belotelov, I.; Bunin, P.; Finger, M.; Finger, M., Jr.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Bondar, N.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.; Musienko, Y.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Starodumov, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow 117924, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.; Adiguzel, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Alcaraz Maestre, J.; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Colino, N.; De La Cruz, B.; Diez Pardos, C.; Dominguez Vazquez, D.; Fernandez Bedoya, C.; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Puerta Pelayo, J.; Redondo, I.; Romero, L.; Santaolalla, J.; Willmott, C.] Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, A.; Chamizo Llatas, M.; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Lobelle Pardo, P.; Lopez Virto, A.; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Ruiz Jimeno, A.; Scodellaro, L.; Sobron Sanudo, M.; Vila, I.; Vilar Cortabitarte, R.] Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, E-39005 Santander, Spain. [Hammer, J.; Darmenov, N.; Genchev, V.; Panagiotou, A.; Hajdu, C.; Mohanty, A. K.; Lusito, L.; Chiorboli, M.; Tropiano, A.; De Guio, F.; Ghezzi, A.; Perrozzi, L.; Lucaroni, A.; Volpe, R.; Boccali, T.; Tonelli, G.; Venturi, A.; Pandolfi, F.; Botta, C.; Graziano, A.; Pelliccioni, M.; Pereira, A. Vilela; Varela, J.; Kossov, M.; Grishin, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Breuker, H.; Brona, G.; Bunkowski, K.; Camporesi, T.; Cano, E.; Cerminara, G.; Christiansen, T.; Perez, J. A. Coarasa; Cure, B.; D'Enterria, D.; De Roeck, A.; Ramos, F. Duarte; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Garrido, R. Gomez-Reino; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Harvey, J.; Hegeman, J.; Hegner, B.; Henderson, C.; Hesketh, G.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Karavakis, E.; Lecoq, P.; Leonidopoulos, C.; Lourenco, C.; Macpherson, A.; Maeki, T.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimiae, M.; Polese, G.; Racz, A.; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schaefer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stoeckli, F.; Stoye, M.; Tropea, P.; Tsirou, A.; Tsyganov, A.; Veres, G. I.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.; Sharma, V.; Hall-Wilton, R.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Koenig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.] Paul Scherrer Inst, Villigen, Switzerland. [Bortignon, P.; Caminada, L.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; del Arbol, P. Martinez Ruiz; Meridiani, P.; Milenovic, P.; Moortgat, F.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.] ETH, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.; Wilke, L.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Chen, W. T.; Dutta, S.; Go, A.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Gulmez, E.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Ctr Nat Sci, UA-310108 Kharkov, Ukraine. [Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hansen, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Acosta, M. Vazquez; Virdee, T.; Wakefield, S.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76798 USA. [Bose, T.; Jarrin, E. Carrera; Clough, A.; Fantasia, C.; Heister, A.; St John, J.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Borgia, M. A.; Breedon, R.; Sanchez, M. Calderon De La Barca; Cebra, D.; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Salur, S.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Felcini, M.; Wallny, R.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.] Univ Calif Los Angeles, Los Angeles, CA USA. [Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Luthra, A.; Nguyen, H.; Pasztor, G.; Satpathy, A.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Muelmenstaedt, J.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Kcira, D.; Litvine, V.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Terentyev, N.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Heyburn, B.; Lopez, E. Luiggi; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Chatterjee, A.; Das, S.; Eggert, N.; Fields, L. J.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kuznetsov, V.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Riley, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06430 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Banerjee, S.; Bauerdick, L. A. T.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Demarteau, M.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hahn, A.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; James, E.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Kilminster, B.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Limon, P.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; McCauley, T.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Popescu, S.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Soha, A.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL USA. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Garcia-Solis, E. J.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Cankocak, K.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Radicci, V.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Wyslouch, B.; Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Ceballos, G. Gomez; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Lundstedt, C.; Malbouisson, H.; Malik, S.; Snow, G. R.] Univ Nebraska Lincoln, Lincoln, NE USA. [Baur, U.; Godshalk, A.; Iashvili, I.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Kaadze, K.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL USA. [Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Warchol, J.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Vargas, J. E. Ramirez; Zatserklyaniy, A.] Univ Puerto Rico, Mayaguez, PR USA. [Alagoz, E.; Barnes, V. E.; Bolla, G.; Borrello, L.; Bortoletto, D.; Everett, A.; Garfinkel, A. F.; Gecse, Z.; Gutay, L.; Hu, Z.; Jones, M.; Koybasi, O.; Laasanen, A. T.; Leonardo, N.; Liu, C.; Maroussov, V.; Merkel, P.; Miller, D. H.; Neumeister, N.; Potamianos, K.; Shipsey, I.; Silvers, D.; Svyatkovskiy, A.; Yoo, H. D.; Zablocki, J.; Zheng, Y.] Purdue Univ, W Lafayette, IN 47907 USA. [Jindal, P.; Parashar, N.] Purdue Univ Calumet, Hammond, LA USA. [Boulahouache, C.; Cuplov, V.; Ecklund, K. M.; Geurts, F. J. M.; Liu, J. H.; Morales, J.; Padley, B. P.; Redjimi, R.; Roberts, J.; Zabel, J.] Rice Univ, Houston, TX USA. [Betchart, B.; Bodek, A.; Chung, Y. S.; Covarelli, R.; de Barbaro, P.; Demina, R.; Eshaq, Y.; Flacher, H.; Garcia-Bellido, A.; Goldenzweig, P.; Gotra, Y.; Han, J.; Harel, A.; Miner, D. C.; Orbaker, D.; Petrillo, G.; Vishnevskiy, D.; Zielinski, M.] Univ Rochester, Rochester, NY USA. [Bhatti, A.; Demortier, L.; Goulianos, K.; Lungu, G.; Mesropian, C.; Yan, M.] Rockefeller Univ, New York, NY 10021 USA. [Atramentov, O.; Barker, A.; Duggan, D.; Gershtein, Y.; Gray, R.; Halkiadakis, E.; Hidas, D.; Hits, D.; Lath, A.; Panwalkar, S.; Patel, R.; Richards, A.; Rose, K.; Schnetzer, S.; Somalwar, S.; Stone, R.; Thomas, S.] Rutgers State Univ, Piscataway, NJ USA. [Cerizza, G.; Hollingsworth, M.; Spanier, S.; Yang, Z. C.; York, A.] Univ Tennessee, Knoxville, TN USA. [Asaadi, J.; Eusebi, R.; Gilmore, J.; Gurrola, A.; Kamon, T.; Khotilovich, V.; Montalvo, R.; Nguyen, C. N.; Osipenkov, I.; Pivarski, J.; Safonov, A.; Sengupta, S.; Tatarinov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX USA. [Akchurin, N.; Bardak, C.; Damgov, J.; Jeong, C.; Kovitanggoon, K.; Lee, S. W.; Mane, P.; Roh, Y.; Sill, A.; Volobouev, I.; Wigmans, R.; Yazgan, E.] Texas Tech Univ, Lubbock, TX 79409 USA. [Appelt, E.; Brownson, E.; Engh, D.; Florez, C.; Gabella, W.; Johns, W.; Kurt, P.; Maguire, C.; Melo, A.; Sheldon, P.; Velkovska, J.] Vanderbilt Univ, Nashville, TN USA. [Arenton, M. W.; Balazs, M.; Boutle, S.; Buehler, M.; Conetti, S.; Cox, B.; Francis, B.; Hirosky, R.; Ledovskoy, A.; Lin, C.; Neu, C.; Yohay, R.] Univ Virginia, Charlottesville, VA USA. [Gollapinni, S.; Harr, R.; Karchin, P. E.; Lamichhane, P.; Mattson, M.; Milstene, C.; Sakharov, A.] Wayne State Univ, Detroit, MI USA. [Anderson, M.; Bachtis, M.; Bellinger, J. N.; Carlsmith, D.; Dasu, S.; Efron, J.; Gray, L.; Grogg, K. S.; Grothe, M.; Hall-Wilton, R.; Herndon, M.; Klabbers, P.; Klukas, J.; Lanaro, A.; Lazaridis, C.; Leonard, J.; Lomidze, D.; Loveless, R.; Mohapatra, A.; Reeder, D.; Ross, I.; Savin, A.; Smith, W. H.; Swanson, J.; Weinberg, M.] Univ Wisconsin, Madison, WI 53706 USA. [Gregores, E. M.] Univ Fed ABC, Santo Andre, Brazil. [Assran, Y.] Suez Canal Univ, Suez, Egypt. [Mahmoud, M. A.] Fayoum Univ, Al Fayyum, Egypt. [Agram, J. -L.; Conte, E.; Drouhin, F.; Fontaine, J. -C.; Karim, M.] Univ Haute Alsace, Mulhouse, France. [Bergholz, M.; Lohmann, W.; Schmidt, R.] Brandenburg Tech Univ Cottbus, D-03044 Cottbus, Germany. [Krajczar, K.; Vesztergombi, G.; Veres, G. I.] Eotvos Lorand Univ, Budapest, Hungary. [Maity, M.] Visva Bharati Univ, Santini Ketan, W Bengal, India. [Fabozzi, F.] Univ Basilicata, I-85100 Potenza, Italy. [Lacaprara, S.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy. [Bell, A. J.] Univ Geneva, Geneva, Switzerland. [Rolandi, G.] Ist Nazl Fis Nucl, Scuola Normale Sez, Pisa, Italy. [Bakirci, M. N.; Topakli, H.] Gaziosmanpasa Univ, Tokat, Turkey. [Cerci, S.] Adiyaman Univ, Adiyaman, Turkey. [Sogut, K.] Mersin Univ, Mersin, Turkey. [Demir, D.] Izmir Inst Technol, Izmir, Turkey. [Kaya, M.; Kaya, O.] Kafkas Univ, Kars, Turkey. [Ozkorucuklu, S.] Suleyman Demirel Univ, TR-32200 Isparta, Turkey. [Sonmez, N.] Ege Univ, Izmir, Turkey. [Popescu, S.] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Bucharest, Romania. [Cankocak, K.] Istanbul Tech Univ, TR-80626 Istanbul, Turkey. RP Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. RI Katkov, Igor/E-2627-2012; Boos, Eduard/D-9748-2012; Snigirev, Alexander/D-8912-2012; Servoli, Leonello/E-6766-2012; Tomei, Thiago/E-7091-2012; Novaes, Sergio/D-3532-2012; Padula, Sandra /G-3560-2012; Fruhwirth, Rudolf/H-2529-2012; Azzi, Patrizia/H-5404-2012; Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Jeitler, Manfred/H-3106-2012; Venturi, Andrea/J-1877-2012; Tinoco Mendes, Andre David/D-4314-2011; Mignerey, Alice/D-6623-2011; Krammer, Manfred/A-6508-2010; Ganjour, Serguei/D-8853-2011; Lokhtin, Igor/D-7004-2012; Kodolova, Olga/D-7158-2012; Ruiz, Alberto/E-4473-2011; Stahl, Achim/E-8846-2011; Hektor, Andi/G-1804-2011; Wulz, Claudia-Elisabeth/H-5657-2011; Chen, Jie/H-6210-2011; Bolton, Tim/A-7951-2012; Yang, Fan/B-2755-2012; Dudko, Lev/D-7127-2012; de Jesus Damiao, Dilson/G-6218-2012; Montanari, Alessandro/J-2420-2012; Amapane, Nicola/J-3683-2012; tosi, mia/J-5777-2012; Petrushanko, Sergey/D-6880-2012; Raidal, Martti/F-4436-2012; Kadastik, Mario/B-7559-2008; Mundim, Luiz/A-1291-2012; Santaolalla, Javier/C-3094-2013; Rolandi, Luigi (Gigi)/E-8563-2013; Zalewski, Piotr/H-7335-2013; Ivanov, Andrew/A-7982-2013; Hill, Christopher/B-5371-2012; Cakir, Altan/P-1024-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012; Ozdemir, Kadri/P-8058-2014; Della Ricca, Giuseppe/B-6826-2013; Azarkin, Maxim/N-2578-2015; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Sznajder, Andre/L-1621-2016; Belyaev, Alexander/F-6637-2015; Trocsanyi, Zoltan/A-5598-2009; Konecki, Marcin/G-4164-2015; Hernandez Calama, Jose Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; Matorras, Francisco/I-4983-2015; My, Salvatore/I-5160-2015; Muelmenstaedt, Johannes/K-2432-2015; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Andreev, Vladimir/M-8665-2015; Josa, Isabel/K-5184-2014; Calvo Alamillo, Enrique/L-1203-2014; Vogel, Helmut/N-8882-2014; Marinho, Franciole/N-8101-2014; Ragazzi, Stefano/D-2463-2009; Benussi, Luigi/O-9684-2014; Russ, James/P-3092-2014; Ferreira Dias, Marco Andre/P-6667-2014; Dahms, Torsten/A-8453-2015; Ahmed, Ijaz/E-9144-2015; Lazzizzera, Ignazio/E-9678-2015; Sen, Sercan/C-6473-2014; D'Alessandro, Raffaello/F-5897-2015; Wimpenny, Stephen/K-8848-2013; Troitsky, Sergey/C-1377-2014; Marlow, Daniel/C-9132-2014; Oguri, Vitor/B-5403-2013; Janssen, Xavier/E-1915-2013; Alves, Gilvan/C-4007-2013; Codispoti, Giuseppe/F-6574-2014; Gribushin, Andrei/J-4225-2012; Cerrada, Marcos/J-6934-2014; Calderon, Alicia/K-3658-2014; de la Cruz, Begona/K-7552-2014; Scodellaro, Luca/K-9091-2014; Vilela Pereira, Antonio/L-4142-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Paulini, Manfred/N-7794-2014; Gerbaudo, Davide/J-4536-2012 OI Katkov, Igor/0000-0003-3064-0466; Servoli, Leonello/0000-0003-1725-9185; Tomei, Thiago/0000-0002-1809-5226; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; Tinoco Mendes, Andre David/0000-0001-5854-7699; Krammer, Manfred/0000-0003-2257-7751; Ruiz, Alberto/0000-0002-3639-0368; Stahl, Achim/0000-0002-8369-7506; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Dudko, Lev/0000-0002-4462-3192; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Hill, Christopher/0000-0003-0059-0779; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Della Ricca, Giuseppe/0000-0003-2831-6982; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Sznajder, Andre/0000-0001-6998-1108; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; Matorras, Francisco/0000-0003-4295-5668; My, Salvatore/0000-0002-9938-2680; Muelmenstaedt, Johannes/0000-0003-1105-6678; Rovelli, Tiziano/0000-0002-9746-4842; Calvo Alamillo, Enrique/0000-0002-1100-2963; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Ragazzi, Stefano/0000-0001-8219-2074; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Dahms, Torsten/0000-0003-4274-5476; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Wimpenny, Stephen/0000-0003-0505-4908; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Vilela Pereira, Antonio/0000-0003-3177-4626; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Paulini, Manfred/0000-0002-6714-5787; Gerbaudo, Davide/0000-0002-4463-0878 FU FMSR (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences (Estonia); NICPB (Estonia); Academy of Finland (Finland); ME (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan); MST (Russia); MAE (Russia); MSTD (Serbia); MICINN (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK (Turkey); TAEK (Turkey); STFC (United Kingdom); DOE (USA); NSF (USA) FX We are grateful to Anna Kulesza and Michael Kramer for providing the theoretical production cross sections and associated uncertainties at next-to-leading order for pair production of (g) over tilde and (t) over tilde 1. We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). NR 43 TC 22 Z9 22 U1 1 U2 34 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 MAR PY 2011 IS 3 AR 024 DI 10.1007/JHEP03(2011)024 PG 29 WC Physics, Particles & Fields SC Physics GA 747BL UT WOS:000289295200024 ER PT J AU Bryant, HC Adolphi, NL Huber, DL Fegan, DL Monson, TC Tessier, TE Flynn, ER AF Bryant, H. C. Adolphi, Natalie L. Huber, Dale L. Fegan, Danielle L. Monson, Todd C. Tessier, Trace E. Flynn, Edward R. TI Magnetic properties of nanoparticles useful for SQUID relaxometry in biomedical applications SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS LA English DT Article DE Magnetic nanoparticle; AC susceptometry; Magnetorelaxometry; Langevin function; Neel relaxation; Magnetite ID TIME; PARTICLES; SYSTEMS AB We use dynamic susceptometry measurements to extract semiempirical temperature-dependent, 255-400 K, magnetic parameters that determine the behavior of single-core nanoparticles useful for SQUID relaxometry in biomedical applications. Volume susceptibility measurements were made in 5 K degree steps at nine frequencies in the 0.1-1000 Hz range, with a 0.2 mT amplitude probe field. The saturation magnetization (M-s) and anisotropy energy density (K) derived from the fitting of theoretical susceptibility to the measurements both increase with decreasing temperature; good agreement between the parameter values derived separately from the real and imaginary components is obtained. Characterization of the Neel relaxation time indicates that the conventional prefactor, 0.1 ns, is an upper limit, strongly correlated with the anisotropy energy density. This prefactor decreases substantially for lower temperatures as K increases. We find, using the values of the parameters determined from the real part of the susceptibility measurements at 300 K, that SQUID relaxometry measurements of relaxation and excitation curves on the same sample are well described. (C) 2010 Elsevier B.V. All rights reserved. C1 [Bryant, H. C.; Adolphi, Natalie L.; Fegan, Danielle L.; Tessier, Trace E.; Flynn, Edward R.] Senior Sci LLC, Albuquerque, NM 87111 USA. [Huber, Dale L.; Monson, Todd C.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Bryant, H. C.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA. [Adolphi, Natalie L.] Univ New Mexico, Dept Biochem & Mol Biol, Albuquerque, NM 87131 USA. RP Bryant, HC (reprint author), Senior Sci LLC, 11109 Country Club NE, Albuquerque, NM 87111 USA. EM hzero@unm.edu RI Huber, Dale/A-6006-2008; OI Huber, Dale/0000-0001-6872-8469; Monson, Todd/0000-0002-9782-7084 FU National Institutes of Health [R44AI066765, R44CA096154, R44CA105742, R44CA123785]; US Department of Energy [DE-AC04-94AL85000] FX Senior Scientific, LLC, acknowledges the support of the National Institutes of Health under Grants R44AI066765, R44CA096154, R44CA105742 and R44CA123785. This work was performed, in part, at the Center for Integrated Nanotechnologies, a US Department of Energy and Office of Basic Energy Sciences user facility. Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation, a Lockheed-Martin Company, for the US Department of Energy under Contract no. DE-AC04-94AL85000. Natalie Adolphi acknowledges equity interests in nanoMR and ABQMR; nanoMR and ABQMR did not sponsor this research. NR 18 TC 10 Z9 10 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-8853 J9 J MAGN MAGN MATER JI J. Magn. Magn. Mater. PD MAR PY 2011 VL 323 IS 6 BP 767 EP 774 DI 10.1016/j.jmmm.2010.10.042 PG 8 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA 698DX UT WOS:000285573500017 PM 21516188 ER PT J AU Griscom, DL Weber, WJ AF Griscom, David L. Weber, William J. TI Electron spin resonance study of Fe3+ and Mn2+ ions in 17-year-old nuclear-waste-glass simulants containing PuO2 with different degrees of Pu-238 substitution SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article DE High level nuclear waste glasses; Electron paramagnetic resonance; Electron spin resonance; Plutonium immobilization; Radioisotope substitution; alpha-Recoil damage; Thermal spikes; Radiation vitrification; Speromagnetism; Pu-238 ID IRON PHOSPHATE-GLASSES; PARAMAGNETIC-RESONANCE; IMMOBILIZATION; IRRADIATION; SPECTRA; MODEL; ROCKS; STATE AB In 1982, three samples of a model nuclear waste glass, DRG-P1, P2, and P3, were prepared at Pacific Northwest National Laboratory with identical chemical compositions but respectively batched with 0.0, 0.1, and 0.9 wt.% of (PuO2)-Pu-238 ( half life 87.8 years) partially replacing the 1.0 wt.% (PuO2)-Pu-239 (half life 2410 years) present in DRG-P1. In 1999, sub-samples of these three glasses were sent to the Naval Research Laboratory, where electron spin resonance (ESR) was to be used to search for self-irradiation effects due to Pu-238 alpha decay. However, no radiation-induced point defects associated with the aluminoborosilicate network were observed. Rather, profound alpha-decay-induced changes in the ESR spectra of the batched iron-group ions were found. The spectra recorded for DRG-P1 were shown by absolute spin counts to have ESR intensities equivalent to similar to 85% of the sum of the batched 8.28 mol% Fe3+ and 2.79 mol% Mn2+, assuming that all of those ions behave as paramagnetic S=5/2 states at room temperature. (Only 1.7 mol% Ni2+ was batched, and ion-for-ion this S = 1 specie is calculated to contribute only similar to 1/3 of the ESR intensity of an S = 5/2 ion.) Separate experiments and calculations ruled out the possibility of small-particle magnetite-like precipitates comprising even so much as 0.01% of the total iron. A relatively weak ESR spectral feature observed in all three of the DRG-Pn samples at g = 4.3 is the known signature of dilute Fe3+ in glasses. By far the strongest ESR signal was found to be a broad line characterized by a first-derivative zero crossing at g = 2.06 and a peak-to-peak derivative linewidth of similar to 150 mT, both of which are shown to be virtually insensitive to temperature variations in the range 4.2 to 500 K and alpha-decay doses in the range provided by the 17-year aging of the three samples with differing Pu-238 contents. It was discovered that these broad line shapes could be accurately simulated as weighted sums of Lorentzian shape functions of differing widths but having the same g value. The absence of any measurable anisotropy in the broad line, coupled with the temperature invariance of its width, imply the existence of extremely strong exchange interactions within clusters of Fe3+, Fe2+, Mn2+, and Ni2+ ions. The result is a speromagnetic system (amorphous antiferromagnet) characterized by progressive freezing out of like-ion pairs as the temperature is lowered, as opposed to exhibiting a distinct Neel temperature. Calculations that confirm this inference hinge on use of an equation previously derived by one of the authors [D.L. Griscom, V. Beltrain-Lopez, C.I. Merzbacher, and E. Bolden, J. Non-Cryst. Solids 253 (1999) 1 similar to 22) that expresses the ESR intensity of ions behaving as non-interacting paramagnets as a function of their spin S. the spectrometer frequency v, and the temperature T. The most evident ESR effect of 17 years of Pu-238 decay is the (irreversible) lowering of the intensity of the broad line in rough proportion to the amount of Pu-238 in the sample, with associated increases in the amplitude of the narrow g=4.3 feature. It was additionally observed that cooling these glasses gives rise to reversible lowering of the broad-line intensity and increasing of the strength of the g=4.3 feature when compared with theoretical expectation for temperature dependence of non-interacting S = 5/2 paramagnets. The ESR integrated intensityof the broad line as a function of Pu-238 alpha-decay dose proved to be accurately fitted by a simple saturating exponential function asymptotic to zero for infinite-time self irradiation. This result thus promises a precise means of extrapolating thousands of years into the future the process of "super vitrification" resulting from the creation and rapid quenching of "thermal spikes" due to alpha decay in glasses immobilizing Pu-239 or other actinide elements. In addition, because the ESR spectra of several very different candidate high-level nuclear waste (HLW) glass compositions containing even higher amounts of Fe2O3 are also shown here to be decomposable into sums of pure Lorentzians, the analytical method we have devised should be applicable to these and many other HLW glasses containing both iron-group oxides and radionuclides. (C) 2010 Elsevier B.V. All rights reserved. C1 [Griscom, David L.] Impact Glass Res Int, San Carlos, Sonora, Mexico. [Weber, William J.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Griscom, DL (reprint author), 3938 E Grant Rd 131, Tucson, AZ 85712 USA. EM david_griscom@yahoo.com RI Weber, William/A-4177-2008 OI Weber, William/0000-0002-9017-7365 FU U.S. Department of Energy [DE-Al07-96ER45619] FX Most of the ESR experiments reported here were carried out in 1999 at the Naval Research Laboratory (NRL) pursuant to a program "Chemical Decomposition of High-Level Nuclear Waste Storage/Disposal Glasses under Irradiation" funded by the U.S. Department of Energy under Grant Number DE-Al07-96ER45619. One of us (D.L.G.) thanks Bill Powers and Joe Palovich of the NRL's Health Physics Branch for receiving and unpacking the shipment of these radioactive samples, kindly helping him to load and seal them into fused silica sample tubes, and approving his plan for securely storing them between experiments. He also thanks Bill Carlos, formerly of NRL's Electronics Science & Technology Division, for making available his ESR spectrometer and kindly assisting in the acquisition of the spectra of Fig. 3. One of us (W.J.W.) thanks the US Department of Energy, Office of Basic Energy Sciences for support in the preparation of this manuscript. NR 51 TC 6 Z9 6 U1 3 U2 27 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR 1 PY 2011 VL 357 IS 5 BP 1437 EP 1451 DI 10.1016/j.jnoncrysol.2010.11.017 PG 15 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 739OE UT WOS:000288726700015 ER PT J AU Soules, TF Gilmer, GH Matthews, MJ Stolken, JS Feit, MD AF Soules, Thomas F. Gilmer, George H. Matthews, Manyalibo J. Stolken, James S. Feit, Michael D. TI Silica molecular dynamic force fields-A practical assessment SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article DE Molecular dynamics; Silica glass structure; Silica glass properties; Silica force fields ID VITREOUS SILICA; COMPUTER-SIMULATION; AMORPHOUS SILICA; GLASS; MODEL; 1ST-PRINCIPLES; TEMPERATURE; DIFFRACTION; RELAXATION; POTENTIALS AB The purpose of this paper is to compare simple and efficient pair-wise force fields for silica glass and assess their applicability for use in large scale molecular dynamic (MD) simulations of laser damage mitigation. A number of pair-wise force fields have been shown to give the random tetrahedral network of silica glass. Further, potentials obtained by fitting quantum mechanical results exhibit many of the properties of silica such as the low thermal expansion and densification. However with these potentials densification is observed at temperatures much higher than experiment. We also show that the thermodynamic melting point of beta-crystobalite similarly occurs at temperatures much higher than observed experimentally. Softer empirical potentials can be constructed that do give liquid properties at experimental temperatures. However in all cases the activation energies for diffusion are lower than the experimental activation energies for viscosity. Published by Elsevier B.V. C1 [Soules, Thomas F.; Gilmer, George H.; Matthews, Manyalibo J.; Stolken, James S.; Feit, Michael D.] Lawrence Livermore Natl Lab, Natl Ignit Facil & Photon Sci, Livermore, CA 94550 USA. RP Soules, TF (reprint author), Lawrence Livermore Natl Lab, Natl Ignit Facil & Photon Sci, 7000 East Ave, Livermore, CA 94550 USA. EM soules1@llnl.gov RI Feit, Michael/A-4480-2009 FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. The authors also acknowledge Jeffrey Bude for his encouragement and support. The authors would also like to thank Professor Bruce Berne for his potentials. NR 44 TC 22 Z9 22 U1 4 U2 38 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR-APR PY 2011 VL 357 IS 6-7 BP 1564 EP 1573 DI 10.1016/j.jnoncrysol.2011.01.009 PG 10 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 742YC UT WOS:000288980200012 ER PT J AU Chou, YS Thomsen, EC Williams, RT Choi, JF Canfield, NL Bonnett, JF Stevenson, JW Shyam, A Lara-Curzio, E AF Chou, Yeong-Shyung Thomsen, E. C. Williams, R. T. Choi, J. -F. Canfield, N. L. Bonnett, J. F. Stevenson, J. W. Shyam, A. Lara-Curzio, E. TI Compliant alkali silicate sealing glass for solid oxide fuel cell applications: Thermal cycle stability and chemical compatibility SO JOURNAL OF POWER SOURCES LA English DT Article DE Sealing glass; Leak rate; Coating; SOFC ID ELECTRICAL STABILITY; DUAL ENVIRONMENT; MICA SEALS; CORROSION; SOFC; SEALANTS; ALUMINA AB An alkali silicate glass (SCN-1) is currently being evaluated as a candidate sealing glass for solid oxide fuel cell (SOFC) applications. The glass containing similar to 17 mole% alkalis (K2O and Na2O) remains vitreous and compliant during SOFC operation, unlike conventional SOFC sealing glasses, which experience substantial devitrification after the sealing process. The non-crystallizing compliant sealing glass has lower glass transition and softening temperatures since the microstructure remains glassy without significant crystallite formation, and hence can relieve or reduce residual stresses and also has the potential for crack healing. Sealing approaches based on compliant glass will also need to satisfy all the mechanical, thermal, chemical, physical, and electrical requirements for SOFC applications, not only in bulk properties but also at sealing interfaces. In this first of a series of papers we will report the thermal cycle stability of the glass when sealed between two SOFC components. i.e., a NiO/YSZ anode supported YSZ bilayer and a coated ferritic stainless steel interconnect material. High temperature leak rates were monitored versus thermal cycles between 700 and 850 degrees C using back pressures ranging from 1.4 to 6.8 kPa (0.2-1.0 psi). Isothermal stability was also evaluated in a dual environment consisting of flowing dilute H-2 fuel versus ambient air. In addition, chemical compatibility at the alumina and YSZ interfaces was examined with scanning electron microscopy and energy dispersive spectroscopy. The results shed new light on the topic of SOFC glass seal development. (C) 2010 Published by Elsevier B.V. C1 [Chou, Yeong-Shyung; Thomsen, E. C.; Williams, R. T.; Choi, J. -F.; Canfield, N. L.; Bonnett, J. F.; Stevenson, J. W.] Pacific NW Natl Lab, Energy & Efficiency Div, Richland, WA 99354 USA. [Shyam, A.; Lara-Curzio, E.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Chou, YS (reprint author), Pacific NW Natl Lab, Energy & Efficiency Div, K2-44,POB 999, Richland, WA 99354 USA. EM yeong-shyung.chou@pnl.gov FU US Department of Energy's National Energy Technology Laboratory (NETL); US Department of Energy [DE-AC06-76RLO 1830, DE-AC05000OR227250] FX The authors would like to thank S. Carlson and J. Coleman (PNNL) and Rosa Trejo (ORNL) for SEM sample preparation and analysis. This paper was funded through the Solid-State Energy Conversion Alliance (SECA) Core Technology Program by the US Department of Energy's National Energy Technology Laboratory (NETL). Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the US Department of Energy under Contract no. DE-AC06-76RLO 1830. Oak Ridge National Laboratory is operated by UT-Battelle, LLC for the US Department of Energy under Contract no. DE-AC05000OR227250. NR 27 TC 40 Z9 40 U1 1 U2 33 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD MAR 1 PY 2011 VL 196 IS 5 BP 2709 EP 2716 DI 10.1016/j.jpowsour.2010.11.020 PG 8 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 712ZP UT WOS:000286705100037 ER PT J AU Manciu, FS Reza, L Durrer, WG Bronson, A Lacina, D Graetz, J AF Manciu, F. S. Reza, L. Durrer, W. G. Bronson, A. Lacina, D. Graetz, J. TI Spectroscopic and structural investigations of alpha-, beta-, and gamma-AlH3 phases SO JOURNAL OF RAMAN SPECTROSCOPY LA English DT Article DE Raman spectroscopy; infrared absorption; X-ray diffraction; aluminum hydride ID CRYSTAL-STRUCTURE; ALUMINUM-HYDRIDE; ALH3; POLYMORPHS; DECOMPOSITION; PRESSURE AB With its reputation as a high-energy density fuel, aluminum hydride (AlH3) has received renewed attention as a material that is particularly suitable, not only for hydrogen storage but also for rocket propulsion. While the various phases of AlH3 have been investigated theoretically, there is a shortage of experimental studies corroborating the theoretical findings. In response to this, we present here an investigation of these compounds based primarily on two research areas in which there is the greatest scarcity of information in the literature, namely Raman and infrared (IR) absorption analysis. To the authors' knowledge, this is the first report of experimental far-IR absorption results on these compounds. Two different samples prepared by broadly similar ethereal reactions of AlCl3 with LiAlH4 were analyzed. Both Raman and IR absorption measurements indicate that one sample is purely gamma-AlH3 and that the other is a mixture of alpha-, beta-, and gamma-AlH3 phases. X-ray diffraction confirms the spectroscopic findings, most notably for the beta-AlH3 phase, for which optical spectroscopic data are reported here for the first time. Copyright (C) 2010 John Wiley & Sons, Ltd. C1 [Manciu, F. S.; Reza, L.; Durrer, W. G.] Univ Texas El Paso, Dept Phys, El Paso, TX 79968 USA. [Bronson, A.] Univ Texas El Paso, Dept Mech Engn, El Paso, TX 79968 USA. [Lacina, D.; Graetz, J.] Brookhaven Natl Lab, Energy Sci & Technol Dept, Upton, NY 11973 USA. RP Manciu, FS (reprint author), Univ Texas El Paso, Dept Phys, El Paso, TX 79968 USA. EM fsmanciu@utep.edu FU Missile Defense Agency [HQ0006-08-C-0040]; National Science Foundation [0723115]; Metal Hydrides Center of Excellence, Office of Energy Efficiency and Renewable Energy; Hydrogen Fuel Initiative, Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC02-98CH1-886] FX The authors gratefully acknowledge the support of the Missile Defense Agency, under award HQ0006-08-C-0040, and the National Science Foundation, under award no. 0723115. This work was partially supported through the Metal Hydrides Center of Excellence, Office of Energy Efficiency and Renewable Energy, and the Hydrogen Fuel Initiative, Office of Basic Energy Sciences, U.S. Department of Energy, under Contract No. DE-AC02-98CH1-886. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the authors and do not necessarily reflect the views of these agencies. The authors also acknowledge Drs. James Wegrzyn and Ahsan Choudhuri for their valuable suggestions while performing the work. NR 19 TC 6 Z9 7 U1 1 U2 18 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0377-0486 J9 J RAMAN SPECTROSC JI J. Raman Spectrosc. PD MAR PY 2011 VL 42 IS 3 BP 512 EP 516 DI 10.1002/jrs.2722 PG 5 WC Spectroscopy SC Spectroscopy GA 737BU UT WOS:000288544000038 ER PT J AU Schneidman-Duhovny, D Hammel, M Sali, A AF Schneidman-Duhovny, Dina Hammel, Michal Sali, Andrej TI Macromolecular docking restrained by a small angle X-ray scattering profile SO JOURNAL OF STRUCTURAL BIOLOGY LA English DT Article DE Small angle X-ray scattering (SAXS); Protein-protein docking; Macromolecular assembly ID PROTEIN-PROTEIN DOCKING; FAST INTERACTION REFINEMENT; BIOLOGICAL MACROMOLECULES; MOLECULAR DOCKING; DRIVEN DOCKING; WEB SERVER; ASSEMBLIES; COMPLEXES; CAPRI; OPTIMIZATION AB While many structures of single protein components are becoming available, structural characterization of their complexes remains challenging. Methods for modeling assembly structures from individual components frequently suffer from large errors, due to protein flexibility and inaccurate scoring functions. However, when additional information is available, it may be possible to reduce the errors and compute near-native complex structures. One such type of information is a small angle X-ray scattering (SAXS) profile that can be collected in a high-throughput fashion from a small amount of sample in solution. Here, we present an efficient method for protein-protein docking with a SAXS profile (FoXSDock): generation of complex models by rigid global docking with PatchDock, filtering of the models based on the SAXS profile, clustering of the models, and refining the interface by flexible docking with FireDock. FoXSDock is benchmarked on 124 protein complexes with simulated SAXS profiles, as well as on 6 complexes with experimentally determined SAXS profiles. When induced fit is less than 1.5 angstrom interface C(alpha) RMSD and the fraction residues of missing from the component structures is less than 3%. FoXSDock can find a model close to the native structure within the top 10 predictions in 77% of the cases; in comparison, docking alone succeeds in only 34% of the cases. Thus, the integrative approach significantly improves on molecular docking alone. The improvement arises from an increased resolution of rigid docking sampling and more accurate scoring. (C) 2010 Elsevier Inc. All rights reserved. C1 [Schneidman-Duhovny, Dina; Sali, Andrej] Univ Calif San Francisco, Dept Bioengn & Therapeut Sci, Dept Pharmaceut Chem, San Francisco, CA 94158 USA. [Schneidman-Duhovny, Dina; Sali, Andrej] Univ Calif San Francisco, Calif Inst Quantitat Biosci QB3, San Francisco, CA 94158 USA. [Hammel, Michal] Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Schneidman-Duhovny, D (reprint author), Univ Calif San Francisco, Dept Bioengn & Therapeut Sci, Dept Pharmaceut Chem, UCSF MC 2552,Byers Hall Mission Bay,Suite 503B,17, San Francisco, CA 94158 USA. EM dina@salilab.org; sali@salilab.org FU Weizmann Institute; NIH [R01 GM083960, U54 RR022220, PN2 EY016525]; Rinat (Pfizer) Inc.; DOE FX We thank Hiro Tsuruta, David Agard, Bill Weis, and Dmitry Svergun for discussions about SAXS, as well as Ben Webb and Daniel Russel for help with IMP. DSD has been funded by the Weizmann Institute Advancing Women in Science Postdoctoral Fellowship. We acknowledge support from NIH R01 GM083960, NIH U54 RR022220, NIH PN2 EY016525, and Rinat (Pfizer) Inc. SIBYLS beamline at Lawrence Berkeley National Laboratory is supported by the DOE program Integrated Diffraction Analysis Technologies (IDAT). We are also grateful for computer hardware gifts from Ron Conway, Mike Homer, Intel, Hewlett-Packard, IBM, and Netapp. NR 53 TC 39 Z9 40 U1 1 U2 11 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1047-8477 J9 J STRUCT BIOL JI J. Struct. Biol. PD MAR PY 2011 VL 173 IS 3 SI SI BP 461 EP 471 DI 10.1016/j.jsb.2010.09.023 PG 11 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA 725XW UT WOS:000287681200007 PM 20920583 ER PT J AU Brunger, AT Strop, P Vrljic, M Chu, S Weninger, KR AF Brunger, Axel T. Strop, Pavel Vrljic, Marija Chu, Steven Weninger, Keith R. TI Three-dimensional molecular modeling with single molecule FRET SO JOURNAL OF STRUCTURAL BIOLOGY LA English DT Article DE Single molecule fluorescence; FRET; Molecular dynamics; Protein-protein interactions ID RESONANCE ENERGY-TRANSFER; PANCREATIC TRYPSIN-INHIBITOR; FLUORESCENCE SPECTROSCOPY; STRUCTURE REFINEMENT; ORIENTATION FACTOR; ANGLE DYNAMICS; COMPLEX; DNA; PROTEINS; REVEALS AB Single molecule fluorescence energy transfer experiments enable investigations of macromolecular conformation and folding by the introduction of fluorescent dyes at specific sites in the macromolecule. Multiple such experiments can be performed with different labeling site combinations in order to map complex conformational changes or interactions between multiple molecules. Distances that are derived from such experiments can be used for determination of the fluorophore positions by triangulation. When combined with a known structure of the macromolecule(s) to which the fluorophores are attached, a three-dimensional model of the system can be determined. However, care has to be taken to properly derive distance from fluorescence energy transfer efficiency and to recognize the systematic or random errors for this relationship. Here we review the experimental and computational methods used for three-dimensional modeling based on single molecule fluorescence resonance transfer, and describe recent progress in pushing the limits of this approach to macromolecular complexes. (C) 2010 Elsevier Inc. All rights reserved. C1 [Brunger, Axel T.; Strop, Pavel; Vrljic, Marija] Stanford Univ, Howard Hughes Med Inst, Stanford, CA 94305 USA. [Brunger, Axel T.; Strop, Pavel; Vrljic, Marija] Stanford Univ, Dept Mol & Cellular Physiol, Stanford, CA 94305 USA. [Brunger, Axel T.; Strop, Pavel; Vrljic, Marija] Stanford Univ, Dept Neurol & Neurol Sci, Stanford, CA 94305 USA. [Brunger, Axel T.; Strop, Pavel; Vrljic, Marija] Stanford Univ, Dept Biol Struct, Stanford, CA 94305 USA. [Brunger, Axel T.; Strop, Pavel; Vrljic, Marija] Stanford Univ, Dept Photon Sci, Stanford, CA 94305 USA. [Chu, Steven] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Chu, Steven] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Chu, Steven] Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Weninger, Keith R.] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA. RP Brunger, AT (reprint author), Stanford Univ, Howard Hughes Med Inst, Stanford, CA 94305 USA. EM brunger@stanford.edu; keith_weninger@ncsu.edu OI Brunger, Axel/0000-0001-5121-2036 FU National Institutes of Health [RO1-MH63105]; Career Award at the Scientific Interface from the Burroughs Wellcome Fund FX We thank the National Institutes of Health for support (to A.T.B., RO1-MH63105), and a Career Award at the Scientific Interface from the Burroughs Wellcome Fund (to K.W.). NR 52 TC 44 Z9 44 U1 2 U2 35 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1047-8477 J9 J STRUCT BIOL JI J. Struct. Biol. PD MAR PY 2011 VL 173 IS 3 SI SI BP 497 EP 505 DI 10.1016/j.jsb.2010.09.004 PG 9 WC Biochemistry & Molecular Biology; Biophysics; Cell Biology SC Biochemistry & Molecular Biology; Biophysics; Cell Biology GA 725XW UT WOS:000287681200010 PM 20837146 ER PT J AU Fierro, AO Reisner, JM AF Fierro, Alexandre O. Reisner, Jon M. TI High-Resolution Simulation of the Electrification and Lightning of Hurricane Rita during the Period of Rapid Intensification SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID TROPICAL CYCLONE INTENSIFICATION; CONVECTIVE VERTICAL MOTIONS; INNER-CORE; PART I; INTENSE HURRICANES; DOPPLER RADAR; MODEL; EYEWALL; ICE; MICROPHYSICS AB In this paper, a high-resolution simulation establishing relationships between lightning and eyewall convection during the rapid intensification phase of Rita will be highlighted. The simulation is an attempt to relate simulated lightning activity within strong convective events (CEs) found within the eyewall and general storm properties for a case from which high-fidelity lightning observations are available. Specifically, the analysis focuses on two electrically active eyewall CEs that had properties similar to events observed by the Los Alamos Sferic Array. The numerically simulated CEs were characterized by updraft speeds exceeding 10 m s(-1), a relatively more frequent flash rate confined in a layer between 10 and 14 km, and a propagation speed that was about 10 m s(-1) less than of the local azimuthal flow in the eyewall. Within an hour of the first CE, the simulated minimum surface pressure dropped by approximately 5 nib. Concurrent with the pulse of vertical motions was a large uptake in lightning activity. This modeled relationship between enhanced vertical motions, a noticeable pressure drop, and heightened lightning activity suggests the utility of using lightning to remotely diagnose future changes in intensity of some tropical cyclones. Furthermore, given that the model can relate lightning activity to latent heat release, this functional relationship, once validated against a derived field produced by dual-Doppler radar data, could be used in the future to initialize eyewall convection via the introduction of latent heat and/or water vapor into a hurricane model. C1 [Fierro, Alexandre O.] Los Alamos Natl Lab, Div Earth & Environm Sci, Space & Remote Sensing Grp, Los Alamos, NM 87545 USA. RP Fierro, AO (reprint author), Natl Weather Ctr, Cooperat Inst Mesoscale Meteorol Studies, Suite 2100,120 David L Boren Blvd, Norman, OK 73072 USA. EM afierro@ou.edu RI Fierro, Alexandre/C-4733-2014 OI Fierro, Alexandre/0000-0002-4859-1255 FU National Nuclear Security Administration of the U.S. Department of Energy under DOE [W-7405-ENG-36, LA-UR-10-04291] FX This work was supported by the Laboratory Directed Research and Development Program of the Los Alamos National Laboratory, which is under the auspices of the National Nuclear Security Administration of the U.S. Department of Energy under DOE Contracts W-7405-ENG-36 and LA-UR-10-04291. Computer resources were provided both by the Computing Division at Los Alamos and the Oak Ridge National Laboratory Cray clusters. The authors would also like to thank Dr. Gary Barnes and one anonymous reviewer for providing helpful suggestions on an earlier version of the manuscript. Thanks also go out to Steve Guimond for providing the wind, radar, and environmental observations and to Dr. Edward "Ted" Mansell for his guidance toward the elaboration of the HIGRAD electrification model. The authors would also like to thank Dr. Robert Rogers at HRD, NOAA, for providing the Fortran subroutine that interpolates the model data from a Cartesian to a cylindrical grid. NR 62 TC 23 Z9 24 U1 1 U2 15 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD MAR PY 2011 VL 68 IS 3 BP 477 EP 494 DI 10.1175/2010JAS3659.1 PG 18 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 746CA UT WOS:000289218100006 ER PT J AU Covey, C Dai, AG Marsh, D Lindzen, RS AF Covey, Curt Dai, Aiguo Marsh, Dan Lindzen, Richard S. TI The Surface-Pressure Signature of Atmospheric Tides in Modern Climate Models SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID DIURNAL CYCLE AB Although atmospheric tides driven by solar heating are readily detectable at the earth's surface as variations in air pressure, their simulations in current coupled global climate models have not been fully examined. This work examines near-surface-pressure tides in climate models that contributed to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC); it compares them with tides both from observations and from the Whole Atmosphere Community Climate Model (WACCM), which extends from the earth's surface to the thermosphere. Surprising consistency is found among observations and all model simulations, despite variation of the altitudes of model upper boundaries from 32 to 76 km in the IPCC models and at 135 km for WACCM. These results are consistent with previous suggestions that placing a model's upper boundary at low altitude leads to partly compensating errors such as reducing the forcing of the tides by ozone heating, but also introducing spurious waves at the upper boundary, which propagate to the surface. C1 [Covey, Curt] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USA. [Dai, Aiguo; Marsh, Dan] Natl Ctr Atmospher Res, Boulder, CO 80307 USA. [Lindzen, Richard S.] MIT, Cambridge, MA 02139 USA. RP Covey, C (reprint author), LLNL Mail Code L-103,7000 East Ave, Livermore, CA 94550 USA. EM covey1@llnl.gov RI Marsh, Daniel/A-8406-2008; Dai, Aiguo/D-3487-2009 OI Marsh, Daniel/0000-0001-6699-494X; FU Office of Science, U.S. Department of Energy, by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; National Science Foundation FX We are grateful to many colleagues for comments on preliminary accounts of these results, in particular to E. C. Cordero and S. Tesfai for correcting the list of model features, and to Robert E. Dickinson for discussion of tide forcing and propagation. We also thank Sabrina Fletcher and Alexandria Ballard for graphic art. We acknowledge the modeling groups, the Program for Climate Model Diagnosis and Intercomparison, and the World Climate Research Program (WCRP) Working Group on Coupled Modelling for their roles in making available the WCRP CMIP3 multi-model dataset. Support of this dataset is provided by the Office of Science, U.S. Department of Energy. This work was performed in part under auspices of the Office of Science, U.S. Department of Energy, by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344, and in part at the National Center for Atmospheric Research, which is sponsored by the National Science Foundation. NR 25 TC 7 Z9 8 U1 0 U2 7 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD MAR PY 2011 VL 68 IS 3 BP 495 EP 514 DI 10.1175/2010JAS3560.1 PG 20 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 746CA UT WOS:000289218100007 ER PT J AU Ferguson, RM Minard, KR Khandhar, AP Krishnan, KM AF Ferguson, R. Matthew Minard, Kevin R. Khandhar, Amit P. Krishnan, Kannan M. TI Optimizing magnetite nanoparticles for mass sensitivity in magnetic particle imaging SO MEDICAL PHYSICS LA English DT Article DE magnetic particle imaging; magnetic nanoparticle spectroscopy; magnetization harmonics; magnetic relaxation ID IRON-OXIDE NANOPARTICLES; BIOMEDICAL APPLICATIONS; INTERPARTICLE INTERACTIONS; GENERAL-APPROACH; NANOCRYSTALS; SIZE; COBALT; TIME; FERROFLUIDS; RELAXATION AB Purpose: Magnetic particle imaging (MPI), using magnetite nanoparticles (MNPs) as tracer material, shows great promise as a platform for fast tomographic imaging. To date, the magnetic properties of MNPs used in imaging have not been optimized. As nanoparticle magnetism shows strong size dependence, the authors explore how varying MNP size impacts imaging performance in order to determine optimal MNP characteristics for MPI at any driving field frequency f(0). Methods: Monodisperse MNPs of varying size were synthesized and their magnetic properties characterized. Their MPI response was measured experimentally using a custom-built MPI transceiver designed to detect the third harmonic of MNP magnetization. The driving field amplitude H-0=6 mT mu(-1)(0) and frequency f(0)=250 kHz were chosen to be suitable for imaging small animals. Experimental results were interpreted using a model of dynamic MNP magnetization that is based on the Langevin theory of superparamagnetism and accounts for sample size distribution and size-dependent magnetic relaxation. Results: The experimental results show a clear variation in the MPI signal intensity as a function of MNP diameter that is in agreement with simulated results. A maximum in the plot of MPI signal vs MNP size indicates there is a particular size that is optimal for the chosen f(0). Conclusions: The authors observed that MNPs 15 nm in diameter generate maximum signal amplitude in MPI experiments at 250 kHz. The authors expect the physical basis for this result, the change in magnetic relaxation with MNP size, will impact MPI under other experimental conditions. (C) 2011 American Association of Physicists in Medicine. [DOI: 10.1118/1.3554646] C1 [Ferguson, R. Matthew; Khandhar, Amit P.; Krishnan, Kannan M.] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA. [Minard, Kevin R.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Krishnan, KM (reprint author), Univ Washington, Dept Mat Sci & Engn, Box 352120, Seattle, WA 98195 USA. EM kannanmk@u.washington.edu OI Khandhar, Amit/0000-0003-4049-1855 FU NIBIB [R21 EB008192]; University of Washington Center for Nanotechnology FX This work was supported by NIBIB Grant No. R21 EB008192 and partial support for RMF from the University of Washington Center for Nanotechnology. Portions of this work were carried out at the University of Washington Center for Nanotechnology User Facility. R.M.F., A.P.K., and K.M.K. are also founders of a start-up company, LodeSpin Laboratories, LLC, involved in the development of tailored MNPs for a range of biomedical applications, including MPI. NR 45 TC 77 Z9 78 U1 2 U2 48 PU AMER ASSOC PHYSICISTS MEDICINE AMER INST PHYSICS PI MELVILLE PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA SN 0094-2405 J9 MED PHYS JI Med. Phys. PD MAR PY 2011 VL 38 IS 3 BP 1619 EP 1626 DI 10.1118/1.3554646 PG 8 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 728MY UT WOS:000287879400051 PM 21520874 ER PT J AU Sandoval, NR Mills, TY Zhang, M Gill, RT AF Sandoval, Nicholas R. Mills, Tirzah Y. Zhang, Min Gill, Ryan T. TI Elucidating acetate tolerance in E. coli using a genome-wide approach SO METABOLIC ENGINEERING LA English DT Article DE Acetate; Directed evolution; Cellulosic feedstock; Genome library; Selection ID DEPENDENT ACID RESISTANCE; ESCHERICHIA-COLI; ETHANOL-PRODUCTION; ENZYMATIC-HYDROLYSIS; AGMATINE ANTIPORTER; WEAK ACIDS; PH; PRETREATMENT; INHIBITION; ARGININE AB Engineering organisms for improved performance using lignocellulose feedstocks is an important step towards a sustainable fuel and chemical industry. Cellulosic feedstocks contain carbon and energy in the form of cellulosic and hemicellulosic sugars that are not metabolized by most industrial microorganisms. Pretreatment processes that hydrolyze these polysaccharides often also result in the accumulation of growth inhibitory compounds, such as acetate and furfural among others. Here, we have applied a recently reported strategy for engineering tolerance towards the goal of increasing Escherichia coli growth in the presence of elevated acetate concentrations (Lynch et al., 2007). We performed growth selections upon an E. coli genome library developed using a moderate selection pressure to identify genomic regions implicated in acetate toxicity and tolerance. These studies identified a range of high-fitness genes that are normally involved in membrane and extracellular processes, are key regulated steps in pathways, and are involved in pathways that yield specific amino acids and nucleotides. Supplementation of the products and metabolically related metabolites of these pathways significantly increased growth rate (a 130% increase in specific growth) at inhibitory acetate concentrations. Our results suggest that acetate tolerance will not involve engineering of a single pathway; rather we observe a range of potential mechanisms for overcoming acetate based inhibition. (C) 2010 Elsevier Inc. All rights reserved. C1 [Sandoval, Nicholas R.; Mills, Tirzah Y.; Gill, Ryan T.] Univ Colorado, Dept Chem & Biol Engn, Boulder, CO 80309 USA. [Zhang, Min] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Gill, RT (reprint author), Univ Colorado, Dept Chem & Biol Engn, UCB 424,111 Engn Dr, Boulder, CO 80309 USA. EM nicholas.sandoval@colorado.edu; tirzah.mills@gmail.com; Min.Zhang@nrel.gov; rtg@colorado.edu RI Glebes, Tirzah/A-9713-2011 FU National Renewable Energy Laboratory, US Department of Energy [ZCO-7-77431-001] FX Thanks to Lauren B.A. Woodruff, Michael D. Lynch, and Anis Karimpour-Fard for help with microarray and SCALEs analysis. This work was supported by the National Renewable Energy Laboratory subcontract no. ZCO-7-77431-001 of the Office of the Biomass Program of the US Department of Energy. NR 59 TC 30 Z9 30 U1 2 U2 34 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1096-7176 J9 METAB ENG JI Metab. Eng. PD MAR PY 2011 VL 13 IS 2 BP 214 EP 224 DI 10.1016/j.ymben.2010.12.001 PG 11 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA 729PP UT WOS:000287963200010 PM 21163359 ER PT J AU Wang, L Barabash, RI Yang, Y Bieler, TR Crimp, MA Eisenlohr, P Liu, W Ice, GE AF Wang, L. Barabash, R. I. Yang, Y. Bieler, T. R. Crimp, M. A. Eisenlohr, P. Liu, W. Ice, G. E. TI Experimental Characterization and Crystal Plasticity Modeling of Heterogeneous Deformation in Polycrystalline alpha-Ti SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article; Proceedings Paper CT Symposium on Cost Affordable Titanium III held at the 2010 TMS Annual Meeting CY FEB 14-18, 2010 CL Seattle, WA SP Minerals, Met & Mat Soc ID CRYSTALLOGRAPHIC TEXTURE EVOLUTION; FINITE-ELEMENT SIMULATIONS; GRAIN-BOUNDARIES; TITANIUM; ORIENTATION; STRAIN; SLIP; MICRODIFFRACTION; METALS; ALLOYS AB Grain-level heterogeneous deformation was studied in a polycrystalline alpha-Ti specimen deformed by four-point bending. Dislocation slip activity in the microstructure was investigated by surface slip trace analysis. Three-dimensional-X-ray diffraction (3D-XRD) was used to investigate subsurface lattice rotations and to identify geometrically necessary dislocations (GNDs). The slip systems of local GNDs were analyzed by studying the streaking directions of reflections in corresponding Laue patterns. The analysis performed in one grain indicated that the subsurface GNDs were from the same slip system identified using slip trace analysis in backscattered electron images. A crystal plasticity finite element (CPFE) model was used to simulate deformation of the same microstructural region. The predictions of dislocation slip activity match the general aspects of the experimental observations, including the ability to simulate the activation of different slip systems in grains where multiple slip systems were activated. Prediction of local crystal rotations, however, was the least accurate aspect of the CPFE model. C1 [Wang, L.; Yang, Y.; Bieler, T. R.; Crimp, M. A.] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA. [Barabash, R. I.; Ice, G. E.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Eisenlohr, P.] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany. [Liu, W.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Wang, L (reprint author), Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA. EM bieler@egr.msu.edu RI Eisenlohr, Philip/E-6866-2010; Yang, Yiyi/B-7298-2013 OI Eisenlohr, Philip/0000-0002-8220-5995; NR 41 TC 40 Z9 40 U1 3 U2 35 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD MAR PY 2011 VL 42A IS 3 BP 626 EP 635 DI 10.1007/s11661-010-0249-8 PG 10 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 714UO UT WOS:000286834700014 ER PT J AU Starling, RLC Wiersema, K Levan, AJ Sakamoto, T Bersier, D Goldoni, P Oates, SR Rowlinson, A Campana, S Sollerman, J Tanvir, NR Malesani, D Fynbo, JPU Covino, S D'Avanzo, P O'Brien, PT Page, KL Osborne, JP Vergani, SD Barthelmy, S Burrows, DN Cano, Z Curran, PA De Pasquale, M D'Elia, V Evans, PA Flores, H Fruchter, AS Garnavich, P Gehrels, N Gorosabel, J Hjorth, J Holland, ST van der Horst, AJ Hurkett, CP Jakobsson, P Kamble, AP Kouveliotou, C Kuin, NPM Kaper, L Mazzali, PA Nugent, PE Pian, E Stamatikos, M Thone, CC Woosley, SE AF Starling, R. L. C. Wiersema, K. Levan, A. J. Sakamoto, T. Bersier, D. Goldoni, P. Oates, S. R. Rowlinson, A. Campana, S. Sollerman, J. Tanvir, N. R. Malesani, D. Fynbo, J. P. U. Covino, S. D'Avanzo, P. O'Brien, P. T. Page, K. L. Osborne, J. P. Vergani, S. D. Barthelmy, S. Burrows, D. N. Cano, Z. Curran, P. A. De Pasquale, M. D'Elia, V. Evans, P. A. Flores, H. Fruchter, A. S. Garnavich, P. Gehrels, N. Gorosabel, J. Hjorth, J. Holland, S. T. van der Horst, A. J. Hurkett, C. P. Jakobsson, P. Kamble, A. P. Kouveliotou, C. Kuin, N. P. M. Kaper, L. Mazzali, P. A. Nugent, P. E. Pian, E. Stamatikos, M. Thoene, C. C. Woosley, S. E. TI Discovery of the nearby long, soft GRB 100316D with an associated supernova SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article DE gamma-ray burst: individual: GRB 100316D; supernovae: individual: SN 2010bh ID GAMMA-RAY BURSTS; CORE-COLLAPSE SUPERNOVAE; 25 APRIL 1998; HOST GALAXIES; E-P,E-I-E-ISO CORRELATION; INTERSTELLAR-MEDIUM; AFTERGLOW EMISSION; SHOCK BREAKOUT; NEUTRON-STAR; LIGHT CURVES AB We report the Swift discovery of the nearby long, soft gamma-ray burst GRB 100316D, and the subsequent unveiling of its low-redshift host galaxy and associated supernova. We derive the redshift of the event to be z = 0.0591 +/- 0.0001 and provide accurate astrometry for the gamma-ray burst (GRB) supernova (SN). We study the extremely unusual prompt emission with time-resolved gamma-ray to X-ray spectroscopy and find that the spectrum is best modelled with a thermal component in addition to a synchrotron emission component with a low peak energy. The X-ray light curve has a remarkably shallow decay out to at least 800 s. The host is a bright, blue galaxy with a highly disturbed morphology and we use Gemini-South, Very Large Telescope and Hubble Space Telescope observations to measure some of the basic host galaxy properties. We compare and contrast the X-ray emission and host galaxy of GRB 100316D to a subsample of GRB-SNe. GRB 100316D is unlike the majority of GRB-SNe in its X-ray evolution, but resembles rather GRB 060218, and we find that these two events have remarkably similar high energy prompt emission properties. Comparison of the host galaxies of GRB-SNe demonstrates, however, that there is a great diversity in the environments in which GRB-SNe can be found. GRB 100316D is an important addition to the currently sparse sample of spectroscopically confirmed GRB-SNe, from which a better understanding of long GRB progenitors and the GRB-SN connection can be gleaned. C1 [Starling, R. L. C.; Wiersema, K.; Rowlinson, A.; Tanvir, N. R.; O'Brien, P. T.; Page, K. L.; Osborne, J. P.; Evans, P. A.; Hurkett, C. P.] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England. [Levan, A. J.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Sakamoto, T.; Gehrels, N.; Holland, S. T.; Stamatikos, M.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Sakamoto, T.] Univ Maryland, Joint Ctr Astrophys, Baltimore, MD 21250 USA. [Bersier, D.; Cano, Z.] Liverpool John Moores Univ, Astrophys Res Inst, Birkenhead CH41 1LD, Merseyside, England. [Goldoni, P.] Lab Astroparticule & Cosmol, F-75205 Paris 13, France. [Goldoni, P.] CEA Saclay, DSM IRFU Serv Astrophys, F-91191 Gif Sur Yvette, France. [Oates, S. R.; Curran, P. A.; De Pasquale, M.; Kuin, N. P. M.] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England. [Campana, S.; Covino, S.; D'Avanzo, P.; Thoene, C. C.] INAF Osservatorio Astron Brera, I-23807 Merate, LC, Italy. [Sollerman, J.] Stockholm Univ, Oskar Klein Ctr, Dept Astron, SE-10691 Stockholm, Sweden. [Sollerman, J.; Malesani, D.; Fynbo, J. P. U.; Hjorth, J.] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen O, Denmark. [Vergani, S. D.] Univ Paris 07, CNRS, APC, UMR7164, F-75205 Paris 13, France. [Vergani, S. D.; Flores, H.] CNRS, Observ Paris, GEPI, UMR 8111, F-92195 Meudon, France. [Barthelmy, S.; Fruchter, A. S.] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Burrows, D. N.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [D'Elia, V.] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, Italy. [D'Elia, V.] ASI Sci Data Ctr, I-00044 Frascati, Italy. [Garnavich, P.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. [Gorosabel, J.] Inst Astrofis Andalucia IAA CSIC, E-18008 Granada, Spain. [Holland, S. T.] Univ Space Res Assoc, Columbia, MD 21044 USA. [van der Horst, A. J.; Kouveliotou, C.] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA. [Jakobsson, P.] Univ Iceland, Inst Sci, Ctr Astrophys & Cosmol, IS-107 Reykjavik, Iceland. [Kamble, A. P.; Kaper, L.] Univ Amsterdam, Sterrenkundig Inst Anton Pannekoek, NL-1090 GE Amsterdam, Netherlands. [Kaper, L.] Vrije Univ Amsterdam, Ctr Laser, NL-1081 HV Amsterdam, Netherlands. [Mazzali, P. A.] Max Planck Inst Astrophys, D-85741 Garching, Germany. [Mazzali, P. A.; Pian, E.] Scuola Normale Super Pisa, I-56127 Pisa, Italy. [Mazzali, P. A.] INAF Oss Astron Padova, I-35122 Padua, Italy. [Nugent, P. E.] Lawrence Berkeley Natl Lab, Computat Cosmol Ctr, Berkeley, CA 94720 USA. [Pian, E.] Osserv Astron Trieste, I-34143 Trieste, Italy. [Stamatikos, M.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Woosley, S. E.] Univ Calif Santa Cruz, Dept Astron & Astrophys, UCO Lick Observ, Santa Cruz, CA 95064 USA. RP Starling, RLC (reprint author), Univ Leicester, Dept Phys & Astron, Univ Rd, Leicester LE1 7RH, Leics, England. EM rlcs1@star.le.ac.uk RI Barthelmy, Scott/D-2943-2012; Gehrels, Neil/D-2971-2012; Curran, Peter/B-5293-2013; Fynbo, Johan/L-8496-2014; Hjorth, Jens/M-5787-2014; Jakobsson, Pall/L-9950-2015; OI Covino, Stefano/0000-0001-9078-5507; Pian, Elena/0000-0001-8646-4858; Sollerman, Jesper/0000-0003-1546-6615; Curran, Peter/0000-0003-3003-4626; Fynbo, Johan/0000-0002-8149-8298; Hjorth, Jens/0000-0002-4571-2306; Jakobsson, Pall/0000-0002-9404-5650; Campana, Sergio/0000-0001-6278-1576; D'Elia, Valerio/0000-0002-7320-5862; Thone, Christina/0000-0002-7978-7648 FU ESO Telescopes at the La Silla or Paranal Observatories [084.D-0939, 083.A-0644, 084.A-0260]; NASA [NAS 5-26555, NAS5-00136]; STFC; British Council and Platform Beta Techniek [PPS WS 005]; Danish National Research Foundation FX This work made use of data supplied by the UK Swift Science Data Centre at the University of Leicester. This work is based on observations made with ESO Telescopes at the La Silla or Paranal Observatories under programme IDs 084.D-0939, 083.A-0644 and 084.A-0260(B). This work is also based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555: these observations are associated with programme 11709. We thank STScI staff for their efforts in implementing the HST ToO observation, particularly Alison Vick. We acknowledge the wider Swift team for their many contributions. RLCS, KW, AR, JPO, KLP and PAE acknowledge financial support from STFC. Financial support of the British Council and Platform Beta Techniek through the Partnership Programme in Science (PPS WS 005) is gratefully acknowledged (KW). The Dark Cosmology Centre is funded by the Danish National Research Foundation. DNB acknowledges NASA contract NAS5-00136. AJvdH was supported by an appointment to the NASA Postdoctoral Program at the MSFC, administered by Oak Ridge Associated Universities through a contract with NASA. NR 92 TC 90 Z9 91 U1 0 U2 4 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD MAR PY 2011 VL 411 IS 4 BP 2792 EP 2803 DI 10.1111/j.1365-2966.2010.17879.x PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 728FF UT WOS:000287859200042 ER PT J AU Wang, C van der Vliet, D More, KL Zaluzec, NJ Peng, S Sun, SH Daimon, H Wang, GF Greeley, J Pearson, J Paulikas, AP Karapetrov, G Strmcnik, D Markovic, NM Stamenkovic, VR AF Wang, Chao van der Vliet, Dennis More, Karren L. Zaluzec, Nestor J. Peng, Sheng Sun, Shouheng Daimon, Hideo Wang, Guofeng Greeley, Jeffrey Pearson, John Paulikas, Arvydas P. Karapetrov, Goran Strmcnik, Dusan Markovic, Nenad M. Stamenkovic, Vojislav R. TI Multimetallic Au/FePt3 Nanoparticles as Highly Durable Electrocatalyst SO NANO LETTERS LA English DT Article DE Electrocatalysis; multimetallic alloy catalysts; catalyst durability; oxygen reduction reaction; composition profile; core/shell nanoparticles ID OXYGEN REDUCTION CATALYSIS; FUEL-CELLS; FACILE SYNTHESIS; METAL-ALLOYS; SURFACE; PLATINUM; CO; PD; NANOCRYSTALS; ELECTROLYTE AB We report the design and synthesis of multimetallic Au/Pt-bimetallic nanoparticles as a highly durable electrocatalyst for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells. This system was first studied on well-defined Pt and FePt thin films deposited on a Au(111) surface, which has guided the development of novel synthetic routes toward shape-controlled Au nanoparticles coated with a Pt-bimetallic alloy. It has been demonstrated that these multimetallic Au/FePt3 nanoparticles possess both the high catalytic activity of Pt-bimetallic alloys and the superior durability of the tailored morphology and composition profile, with mass-activity enhancement of more than 1 order of magnitude over Pt catalysts. The reported synergy between well-defined surfaces and nanoparticle synthesis offers a persuasive approach toward advanced functional nanomaterials. C1 [Peng, Sheng; Sun, Shouheng] Brown Univ, Dept Chem, Providence, RI 02912 USA. [Wang, Chao; van der Vliet, Dennis; Zaluzec, Nestor J.; Pearson, John; Paulikas, Arvydas P.; Karapetrov, Goran; Strmcnik, Dusan; Markovic, Nenad M.; Stamenkovic, Vojislav R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [More, Karren L.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Daimon, Hideo] Hitachi Maxell Ltd, Technol & Dev Div, Ibaraki 3002496, Japan. [Wang, Guofeng] Indiana Univ Purdue Univ, Sch Engn, Indianapolis, IN 46202 USA. [Greeley, Jeffrey] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Sun, SH (reprint author), Brown Univ, Dept Chem, Providence, RI 02912 USA. EM ssun@brown.edu; vrstamenkovic@anl.gov RI Peng, Sheng/E-7988-2010; Wang, Chao/F-4558-2012; van der Vliet, Dennis/P-2983-2015; More, Karren/A-8097-2016; Karapetrov, Goran/C-2840-2008 OI Wang, Chao/0000-0001-7398-2090; van der Vliet, Dennis/0000-0002-2524-527X; More, Karren/0000-0001-5223-9097; Karapetrov, Goran/0000-0003-1113-0137 FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy; Scientific User Facilities Division, Office of Basic Energy Sciences, the U.S. Department of Energy; NSF/DMR [060624]; Brown seed fund; U.S. Department of Energy, Office of Science Laboratory [DE-AC02-06CH11357] FX This work was conducted at Argonne National Laboratory, a U.S. Department of Energy, Office of Science Laboratory, operated by UChicago Argonne, LLC, under contract no. DE-AC02-06CH11357. This research was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Fuel Cell Technologies Program. Microscopy research was conducted at the Electron Microscopy Center for Materials Research at Argonne, and ORNL's SHaRE User Facility, sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, the U.S. Department of Energy. The work at Brown was supported by NSF/DMR 060624 and a Brown seed fund. NR 41 TC 236 Z9 236 U1 29 U2 328 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 J9 NANO LETT JI Nano Lett. PD MAR PY 2011 VL 11 IS 3 BP 919 EP 926 DI 10.1021/nl102369k PG 8 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 730UY UT WOS:000288061500001 PM 20704335 ER PT J AU Gazquez, J Luo, WD Oxley, MP Prange, M Torija, MA Sharma, M Leighton, C Pantelides, ST Pennycook, SJ Varela, M AF Gazquez, Jaume Luo, Weidong Oxley, Mark P. Prange, Micah Torija, Maria A. Sharma, Manish Leighton, Chris Pantelides, Sokrates T. Pennycook, Stephen J. Varela, Maria TI Atomic-Resolution Imaging of Spin-State Superlattices in Nanopockets within Cobaltite Thin Films SO NANO LETTERS LA English DT Article DE Cobaltites; spin state; O vacancies; electron energy loss spectroscopy ID CRYSTAL-STRUCTURE; PEROVSKITE; TRANSITION; VALENCE; LACOO3; OXIDES AB Certain cobalt oxides are known to exhibit ordered Co spin states, as determined from macroscopic techniques. Here we report real-space atomic-resolution imaging of Co spin-state ordering in nanopockets of La0.5Sr0.5CoO3-delta thin films. Unlike the bulk material, where no Co spin-state ordering is found, thin films present a strain-induced domain structure due to oxygen vacancy ordering, inside of which some nanometer sized domains show high-spin Co ions in the planes containing 0 vacancies and low-spin Co ions in the stoichiometric planes. First-principles calculations provide support for this interpretation. C1 [Gazquez, Jaume] Univ Complutense Madrid, Dept Fis Aplicada 3, E-28040 Madrid, Spain. [Gazquez, Jaume; Luo, Weidong; Oxley, Mark P.; Prange, Micah; Pantelides, Sokrates T.; Pennycook, Stephen J.; Varela, Maria] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Luo, Weidong; Oxley, Mark P.; Prange, Micah; Pantelides, Sokrates T.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA. [Torija, Maria A.; Sharma, Manish; Leighton, Chris] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA. RP Gazquez, J (reprint author), Univ Complutense Madrid, Dept Fis Aplicada 3, E-28040 Madrid, Spain. EM jgazqueza@gmail.com RI Gazquez, Jaume/C-5334-2012; Varela, Maria/H-2648-2012; Varela, Maria/E-2472-2014; Luo, Weidong/A-8418-2009 OI Gazquez, Jaume/0000-0002-2561-328X; Varela, Maria/0000-0002-6582-7004; Luo, Weidong/0000-0003-3829-1547 FU Office of Science, Materials Sciences and Engineering Division of the US Department of Energy; DoE [FG02-09ER46554, DE-FG02-06ER46275]; Vanderbilt University; Spanish MEC [2007-0086]; European Research Council [239739]; NSF [DMR-0804432] FX The authors thank Julia Luck for STEM specimen preparation and Masashi Watanabe for the Digital Micrograph PCA plug-in. This work was supported by the Office of Science, Materials Sciences and Engineering Division of the US Department of Energy (W.L, S.J.P., M.V.), by DoE Grant FG02-09ER46554 (M.P.O., M.P.), and by the McMinn Endowment at Vanderbilt University (S.T.P.). J. Gazquez acknowledges financial support from the Spanish MEC 2007-0086 and European Research Council Starting Investigator Award, Grant #239739 STEMOX. Work at UMN was supported primarily by NSF (DMR-0804432) and DoE (DE-FG02-06ER46275, for neutron scattering characterization). NR 35 TC 39 Z9 39 U1 6 U2 68 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD MAR PY 2011 VL 11 IS 3 BP 973 EP 976 DI 10.1021/nl1034896 PG 4 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 730UY UT WOS:000288061500009 PM 21309549 ER PT J AU Gao, JB Luther, JM Semonin, OE Ellingson, RJ Nozik, AJ Beard, MC AF Gao, Jianbo Luther, Joseph M. Semonin, Octavi E. Ellingson, Randy J. Nozik, Arthur J. Beard, Matthew C. TI Quantum Dot Size Dependent J-V Characteristics in Heterojunction ZnO/PbS Quantum Dot Solar Cells SO NANO LETTERS LA English DT Article DE Quantum Dots; solar cells; heterojunction; double diode; PbS ID NANOCRYSTAL FILMS; BACK-CONTACT; INTERFACE; STABILITY; PBS AB The current-voltage (J-V) characteristics of ZnO/PbS quantum dot (QD) solar cells show a QD size-dependent behavior resulting from a Schottky junction that forms at the back metal electrode opposing the desirable diode formed between the ZnO and PbS QD layers. We study a QD size-dependent roll-over effect that refers to the saturation of photocurrent in forward bias and crossover effect which occurs when the light and dark J-V curves intersect. We model the J-V characteristics with a main diode formed between the n-type ZnO nanocrystal (NC) layer and p-type PbS QD layer in series with a leaky Schottky-diode formed between PbS QD layer and metal contact. We show how the characteristics of the two diodes depend on QD size, metal work function, and PbS QD layer thickness, and we discuss how the presence of the back diode complicates finding an optimal layer thickness. Finally, we present Kelvin probe measurements to determine the Fermi level of the QD layers and discuss band alignment, Fermi-level pinning, and the V(oc) within these devices. C1 [Gao, Jianbo; Luther, Joseph M.; Semonin, Octavi E.; Nozik, Arthur J.; Beard, Matthew C.] Natl Renewable Energy Lab, Chem & Mat Sci Ctr, Golden, CO 80401 USA. [Gao, Jianbo; Ellingson, Randy J.] Univ Toledo, Dept Phys & Astron, Wright Ctr Photovolta Innovat & Commercializat, Toledo, OH 43606 USA. [Semonin, Octavi E.; Nozik, Arthur J.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA. RP Beard, MC (reprint author), Natl Renewable Energy Lab, Chem & Mat Sci Ctr, Golden, CO 80401 USA. EM Matt.beard@nrel.gov RI GAO, JIANBO/A-3923-2011; Ellingson, Randy/H-3424-2013; GAO, JIANBO/A-1633-2014; Nozik, Arthur/A-1481-2012; Nozik, Arthur/P-2641-2016; OI Semonin, Octavi Escala/0000-0002-4262-6955; BEARD, MATTHEW/0000-0002-2711-1355 FU U.S. DOE Office of Science; [DE-AC36-08GO28308] FX The authors thank Mark Hanna, J. C. Johnson, J. van de Lagemaat, M. Reese, and A. Nardes for helpful discussions. We thank Bobby To for SEM imaging. J.G. and R.J.E. were supported by a PV seed fund provided by the NCPV program at NREL. J.M.L., O.E.S., A.J.N., and M.C.B. were supported by the Center for Advanced Photophysics an Energy Frontier Research Center funded by U.S. DOE Office of Science. The DOE work was funded by Contract DE-AC36-08GO28308 to NREL. NR 32 TC 181 Z9 182 U1 14 U2 169 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 J9 NANO LETT JI Nano Lett. PD MAR PY 2011 VL 11 IS 3 BP 1002 EP 1008 DI 10.1021/nl103814g PG 7 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 730UY UT WOS:000288061500015 PM 21291196 ER PT J AU Ratchford, D Shafiei, F Kim, S Gray, SK Li, XQ AF Ratchford, Daniel Shafiei, Farbod Kim, Suenne Gray, Stephen K. Li, Xiaoqin TI Manipulating Coupling between a Single Semiconductor Quantum Dot and Single Gold Nanoparticle SO NANO LETTERS LA English DT Article DE Nanomanipulation; hybrid nanostructures; plasmonics; semiconductor nanocrystals; blinking; photoluminescence ID FLUORESCENCE ENHANCEMENT; EMISSION; BLINKING; PLASMONICS; SURFACES; OPTICS AB Using atomic force microscopy nanomanipulation, we position a single Au nanoparticle near a CdSe/ZnS quantum dot to construct a hybrid nanostructure with variable geometry. The coupling between the two particles is varied in a systematic and reversible manner. The photoluminescence lifetime and blinking of the same quantum dot are measured before and after assembly of the structure. In some hybrid structures, the total lifetime is reduced from about 30 ns to well below 1 ns. This dramatic change in lifetime is accompanied by the disappearance of blinking as the nonradiative energy transfer from the CdSe/ZnS quantum dot to the Au nanoparticle becomes the dominant decay channel. Both total lifetime and photoluminescence intensity changes are well described by simple analytical calculations. C1 [Ratchford, Daniel; Shafiei, Farbod; Kim, Suenne; Li, Xiaoqin] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. [Gray, Stephen K.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Li, XQ (reprint author), Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. EM elaineli@physics.utexas.edu RI KIM, SUENNE/F-6352-2013 OI KIM, SUENNE/0000-0002-8438-2805 FU NSF [DMR-0747822]; ONR [N00014-08-1-0745]; Welch Foundation [F-1662]; AFOSR [FA9550-10-1-0022]; Alfred P. Sloan Foundation; NSF-IGERT [DGE-0549417]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX We thank R. Bratschitsch, C. K. Shih, and Greg Sun for helpful discussions. We also gratefully acknowledge financial support from the following sources: NSF DMR-0747822, ONR N00014-08-1-0745, Welch Foundation F-1662, AFOSR FA9550-10-1-0022, and the Alfred P. Sloan Foundation. D.R. acknowledges a fellowship from the NSF-IGERT program via Grant DGE-0549417. Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 44 TC 78 Z9 78 U1 2 U2 83 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 EI 1530-6992 J9 NANO LETT JI Nano Lett. PD MAR PY 2011 VL 11 IS 3 BP 1049 EP 1054 DI 10.1021/nl103906f PG 6 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 730UY UT WOS:000288061500024 PM 21280639 ER PT J AU Hall, WP Modica, J Anker, J Lin, Y Mrksich, M Van Duynet, RP AF Hall, W. Paige Modica, Justin Anker, Jeffrey Lin, Yao Mrksich, Milan Van Duynet, Richard P. TI A Conformation-and Ion-Sensitive Plasmonic Biosensor SO NANO LETTERS LA English DT Article DE Nanoparticle; localized surface plasmon resonance; conformational change; ion sensor; calcium detection ID SELF-ASSEMBLED MONOLAYERS; X-RAY-SCATTERING; RESONANCE SPECTROSCOPY; SILVER NANOPARTICLES; DISTANCE-DEPENDENCE; BACILLUS-ANTHRACIS; ADENYLATE-CYCLASE; CRYSTAL-STRUCTURE; EUKARYOTIC CELLS; DOMAIN MUTANT AB The versatile optical and biological properties of a localized surface plasmon resonance (LSPR) sensor that responds to protein conformational changes are illustrated. The sensor detects conformational changes in a surface-bound construct of the calcium-sensitive protein calmodulin. Increases in calcium concentration induce a 0.96 nm red shift in the spectral position of the LSPR extinction maximum (lambda(max)). Addition of a calcium chelating agent forces the protein to return to its original conformation and is detected as a reversal of the lambda(max) shift. As opposed to previous work, this work demonstrates that these conformational changes produce a detectable shift in lambda(max) even in the absence of a protein label, with a signal:noise ratio near 500. In addition, the protein conformational changes reversibly switch both the wavelength and intensity of the resonance peak, representing an example of a bimodal plasmonic component that simultaneously relays two distinct forms of optical information. This highly versatile plasmonic device acts as a biological sensor, enabling the detection of calcium ions with a biologically relevant limit of detection of 23,mu M, as well as the detection of calmodulin-specific protein ligands. C1 [Hall, W. Paige; Anker, Jeffrey; Van Duynet, Richard P.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. [Modica, Justin; Lin, Yao; Mrksich, Milan] Univ Chicago, Dept Chem, Chicago, IL 60637 USA. [Anker, Jeffrey] Clemson Univ, Dept Chem, Clemson, SC 29634 USA. [Lin, Yao] Univ Connecticut, Dept Chem, Storrs, CT 06269 USA. [Lin, Yao] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. RP Van Duynet, RP (reprint author), Northwestern Univ, Dept Chem, 2145 N Sheridan Rd, Evanston, IL 60208 USA. EM vanduyne@northwestem.edu RI Lin, Yao/E-5527-2011; Mrksich, Milan/G-2469-2011; OI Lin, Yao/0000-0001-5227-2663; Anker, Jeffrey/0000-0002-9544-2367 FU National Science Foundation [EEC-0647560, CHE-0911145, DMR-0520513, BES-0507036]; National Cancer Institute [1 U54 CA119341-01]; Ruth L. Kirschstein National Research Service [5 F32 GM077020]; George W. Beadle Postdoctoral Fellowship; Ryan Fellowship FX This research was supported by the National Science Foundation (Grants EEC-0647560, CHE-0911145, DMR-0520513, and BES-0507036), the National Cancer Institute (1 U54 CA119341-01), a Ruth L. Kirschstein National Research Service Award (5 F32 GM077020) to J.N.A, a George W. Beadle Postdoctoral Fellowship to Y.L., and a Ryan Fellowship to W. P.H. The authors thank the Wei-Jen Tang group from the University of Chicago for the donation of the anthrax edema factor used in this work. NR 50 TC 66 Z9 67 U1 5 U2 71 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1530-6984 J9 NANO LETT JI Nano Lett. PD MAR PY 2011 VL 11 IS 3 BP 1098 EP 1105 DI 10.1021/nl103994w PG 8 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 730UY UT WOS:000288061500032 PM 21280643 ER PT J AU Bradbury, ARM Sidhu, S Dubel, S McCafferty, J AF Bradbury, Andrew R. M. Sidhu, Sachdev Duebel, Stefan McCafferty, John TI Beyond natural antibodies: the power of in vitro display technologies SO NATURE BIOTECHNOLOGY LA English DT Article ID SINGLE-CHAIN ANTIBODIES; HIGH-THROUGHPUT GENERATION; HUMAN MONOCLONAL-ANTIBODY; YEAST SURFACE DISPLAY; T-CELL-RECEPTORS; PHAGE-DISPLAY; RECOMBINANT ANTIBODIES; THERAPEUTIC ANTIBODIES; SYNTHETIC ANTIBODIES; BOTULINUM NEUROTOXIN AB In vitro display technologies, best exemplified by phage and yeast display, were first described for the selection of antibodies some 20 years ago. Since then, many antibodies have been selected and improved upon using these methods. Although it is not widely recognized, many of the antibodies derived using in vitro display methods have properties that would be extremely difficult, if not impossible, to obtain by immunizing animals. The first antibodies derived using in vitro display methods are now in the clinic, with many more waiting in the wings. Unlike immunization, in vitro display permits the use of defined selection conditions and provides immediate availability of the sequence encoding the antibody. The amenability of in vitro display to high-throughput applications broadens the prospects for their wider use in basic and applied research. C1 [Bradbury, Andrew R. M.] Los Alamos Natl Lab, Los Alamos, NM USA. [Sidhu, Sachdev] Univ Toronto, Toronto, ON, Canada. [Duebel, Stefan] Tech Univ Carolo Wilhelmina Braunschweig, Braunschweig, Germany. [McCafferty, John] Univ Cambridge, Cambridge, England. RP Bradbury, ARM (reprint author), Los Alamos Natl Lab, Los Alamos, NM USA. EM amb@lanl.gov OI Bradbury, Andrew/0000-0002-5567-8172; Dubel, Stefan/0000-0001-8811-7390 FU US National Institutes of Health [P50GM085273, R01-HG004852-01A1]; US Department of Energy; US Department of Defense, Defense Threat Reduction Agency; EU; Wellcome Trust FX A.R.M.B. is grateful to the US National Institutes of Health (P50GM085273 and R01-HG004852-01A1), US Department of Energy (GTL program) and the US Department of Defense, Defense Threat Reduction Agency for funding. S. D. gratefully acknowledges funding by the EU 7th framework programme (Projects: Affinomics and AffinityProteome). J.M. is pleased to acknowledge funding by the Wellcome Trust. NR 179 TC 192 Z9 195 U1 15 U2 84 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1087-0156 J9 NAT BIOTECHNOL JI Nat. Biotechnol. PD MAR PY 2011 VL 29 IS 3 BP 245 EP 254 DI 10.1038/nbt.1791 PG 10 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA 732RL UT WOS:000288206700020 PM 21390033 ER PT J AU Kehr, SC Liu, YM Martin, LW Yu, P Gajek, M Yang, SY Yang, CH Wenzel, MT Jacob, R von Ribbeck, HG Helm, M Zhang, X Eng, LM Ramesh, R AF Kehr, S. C. Liu, Y. M. Martin, L. W. Yu, P. Gajek, M. Yang, S. -Y. Yang, C. -H. Wenzel, M. T. Jacob, R. von Ribbeck, H. -G. Helm, M. Zhang, X. Eng, L. M. Ramesh, R. TI Near-field examination of perovskite-based superlenses and superlens-enhanced probe-object coupling SO NATURE COMMUNICATIONS LA English DT Article ID NEGATIVE REFRACTIVE-INDEX; THIN-FILMS; OPTICAL-CONSTANTS; DIFFRACTION LIMIT; MICROSCOPY; METAMATERIALS; HETEROSTRUCTURES; SUPERLATTICES; NANOSCALE; LENS AB A planar slab of negative-index material works as a superlens with sub-diffraction-limited resolution, as propagating waves are focused and, moreover, evanescent waves are reconstructed in the image plane. Here we demonstrate a superlens for electric evanescent fields with low losses using perovskites in the mid-infrared regime. The combination of near-field microscopy with a tunable free-electron laser allows us to address precisely the polariton modes, which are critical for super-resolution imaging. We spectrally study the lateral and vertical distributions of evanescent waves around the image plane of such a lens, and achieve imaging resolution of lambda/14 at the superlensing wavelength. Interestingly, at certain distances between the probe and sample surface, we observe a maximum of these evanescent fields. Comparisons with numerical simulations indicate that this maximum originates from an enhanced coupling between probe and object, which might be applicable for multifunctional circuits, infrared spectroscopy and thermal sensors. C1 [Kehr, S. C.; Martin, L. W.; Zhang, X.; Ramesh, R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Kehr, S. C.] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland. [Liu, Y. M.; Zhang, X.] Univ Calif Berkeley, NSF Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA. [Martin, L. W.] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA. [Yu, P.; Gajek, M.; Yang, S. -Y.; Yang, C. -H.; Ramesh, R.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Yang, C. -H.] Korea Adv Inst Sci & Technol, Dept Phys, Inst NanoCentury, Taejon 305701, South Korea. [Wenzel, M. T.; von Ribbeck, H. -G.] Tech Univ Dresden, Inst Appl Phys, D-01062 Dresden, Germany. [Jacob, R.; Helm, M.] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany. RP Kehr, SC (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM sck21@st-andrews.ac.uk RI Helm, Manfred/B-2284-2009; YANG, CHAN-HO/C-2079-2011; Zhang, Xiang/F-6905-2011; Martin, Lane/H-2409-2011; Liu, Yongmin/F-5322-2010; Yu, Pu/F-1594-2014 OI Martin, Lane/0000-0003-1889-2513; FU Office of Science, Office of Basic Energy Sciences, Materials Sciences Division of the US Department of Energy [DE-AC02-05CH11231]; German Academic Exchange Service DAAD; US Army Research Office (ARO) [50432-PH-MUR]; German Science Foundation DFG [HE 3352/4-1, EN 434/22-1]; EU FX We thank G. Bartal, Y. Wang, X. Yin, L. Zeng and J. Seidel for fruitful discussions. We acknowledge the technical assistance of the FELBE team at Helmholtz-Zentrum Dresden-Rossendorf and thank them for their dedicated support. The work at Berkeley was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences Division of the US Department of Energy under contract No. DE-AC02-05CH11231. S.C.K was supported by the German Academic Exchange Service DAAD. Y.M.L and X.Z. acknowledges funding support from US Army Research Office (ARO) MURI program 50432-PH-MUR. M.T.W., R.J., H.-G.v.R., M.H. and L.M.E. gratefully acknowledge the funding by the German Science Foundation DFG (projects HE 3352/4-1 and EN 434/22-1). M.T.W. and H.-G.v.R. were supported by the EU-STREP Project in FP7 PLAISIR. NR 60 TC 39 Z9 39 U1 3 U2 37 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 2041-1723 J9 NAT COMMUN JI Nat. Commun. PD MAR PY 2011 VL 2 AR 249 DI 10.1038/ncomms1249 PG 9 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 756AC UT WOS:000289982600039 PM 21427720 ER PT J AU Bissell, MJ Hines, WC AF Bissell, Mina J. Hines, William C. TI Why don't we get more cancer? A proposed role of the microenvironment in restraining cancer progression SO NATURE MEDICINE LA English DT Review ID HUMAN BREAST-CANCER; ROUS-SARCOMA VIRUS; GROWTH IN-VIVO; TUMOR-GROWTH; EPITHELIAL-CELLS; EXTRACELLULAR-MATRIX; BASEMENT-MEMBRANE; MAMMARY-GLAND; TGF-BETA; TERATOCARCINOMA CELLS AB Tumors are like new organs and are made of multiple cell types and components. The tumor competes with the normal microenvironment to overcome antitumorigenic pressures. Before that battle is won, the tumor may exist within the organ unnoticed by the host, referred to as 'occult cancer'. We review how normal tissue homeostasis and architecture inhibit progression of cancer and how changes in the microenvironment can shift the balance of these signals to the procancerous state. We also include a discussion of how this information is being tailored for clinical use. C1 [Bissell, Mina J.; Hines, William C.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Bissell, MJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. EM mjbissell@lbl.gov FU US Department of Energy, Office of Biological and Environmental Research [DE-AC02-05CH1123]; US National Cancer Institute [R37CA064786, U54CA126552, R01CA057621, U54CA112970, U01CA143233, U54CA143836]; US Department of Defense [W81XWH0810736] FX We thank C. Ghajar for considerable help for the background materials and him, J. Mott and I. Kuhn for critical reading of the manuscript. We also thank K. Andersen, D. Lyden, S. Rafii, M. de Sousa and M. H. Barcellos-Hoff for referring us to clinically related articles qualifying as 'microenvironmental therapy'. We thank M. Bisoffi for providing the full-text versions of articles on the occult tumors in the prostate and E. Collisson for directing us to references on occult tumors of the pancreas. The work from M. J. B.'s laboratory is supported by grants from the US Department of Energy, Office of Biological and Environmental Research and Low Dose Radiation Program (contract no. DE-AC02-05CH1123), by the US National Cancer Institute (awards R37CA064786, U54CA126552, R01CA057621, U54CA112970, U01CA143233 and U54CA143836-Bay Area Physical Sciences-Oncology Center, University of California-Berkeley) and by the US Department of Defense (W81XWH0810736). NR 140 TC 455 Z9 463 U1 14 U2 134 PU NATURE PUBLISHING GROUP PI NEW YORK PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA SN 1078-8956 J9 NAT MED JI Nat. Med. PD MAR PY 2011 VL 17 IS 3 BP 320 EP 329 DI 10.1038/nm.2328 PG 10 WC Biochemistry & Molecular Biology; Cell Biology; Medicine, Research & Experimental SC Biochemistry & Molecular Biology; Cell Biology; Research & Experimental Medicine GA 730XF UT WOS:000288070000043 PM 21383745 ER PT J AU Sushkov, AO Kim, WJ Dalvit, DAR Lamoreaux, SK AF Sushkov, A. O. Kim, W. J. Dalvit, D. A. R. Lamoreaux, S. K. TI Observation of the thermal Casimir force SO NATURE PHYSICS LA English DT Article ID MU-M RANGE; ATTRACTIVE FORCES AB Quantum theory predicts the existence of the Casimir force between macroscopic bodies, a force arising from the zero-point energy of electromagnetic field modes around them. A thermal Casimir force, due to thermal rather than quantum fluctuations of the electromagnetic field at finite temperature, was theoretically predicted long ago. Here we report the experimental observation of the thermal Casimir force between two gold plates. We measured the attractive force between a flat and a spherical plate for separations between 0.7 mu m and 7 mu m. An electrostatic force caused by potential patches on the plates' surfaces is included in the analysis. Previous measurements of the quantum-fluctuation-induced force have been unable to clearly settle the question of whether the correct low-frequency form of the dielectric constant dispersion for calculating Casimir forces is the Drude model or the plasma model. Our experimental results are in excellent agreement (reduced chi(2) of 1.04) with the Casimir force calculated using the Drude model, including the T = 300 K thermal force, which dominates over the quantum fluctuation-induced force at separations greater than 3 mu m. The plasma model result is excluded in the measured separation range. C1 [Sushkov, A. O.; Lamoreaux, S. K.] Yale Univ, Dept Phys, New Haven, CT 06520 USA. [Kim, W. J.] Seattle Univ, Dept Phys, Seattle, WA 98122 USA. [Dalvit, D. A. R.] Los Alamos Natl Lab, Theoret Div MS B213, Los Alamos, NM 87545 USA. RP Sushkov, AO (reprint author), Yale Univ, Dept Phys, POB 208120, New Haven, CT 06520 USA. EM alex.sushkov@yale.edu FU DARPA/MTO [N66001-09-1-2071] FX The authors thank V. Yashchuk for performing the surface roughness measurements, and acknowledge discussions with S. Eckel and F. Intravaia. This work was supported by the DARPA/MTOs Casimir Effect Enhancement project under SPAWAR Contract No. N66001-09-1-2071. NR 35 TC 149 Z9 151 U1 1 U2 41 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1745-2473 J9 NAT PHYS JI Nat. Phys. PD MAR PY 2011 VL 7 IS 3 BP 230 EP 233 DI 10.1038/NPHYS1909 PG 4 WC Physics, Multidisciplinary SC Physics GA 728AC UT WOS:000287844300022 ER PT J AU Xu, CG Liang, C Wullschleger, S Wilson, C McDowell, N AF Xu, Chonggang Liang, Chao Wullschleger, Stan Wilson, Cathy McDowell, Nathan TI Importance of feedback loops between soil inorganic nitrogen and microbial communities in the heterotrophic soil respiration response to global warming SO NATURE REVIEWS MICROBIOLOGY LA English DT Letter ID DEPOSITION; FERTILIZATION; ECOSYSTEMS C1 [Xu, Chonggang; Wilson, Cathy; McDowell, Nathan] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87955 USA. [Liang, Chao] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53706 USA. [Liang, Chao] Univ Wisconsin, Dept Soil Sci, Madison, WI 53706 USA. [Wullschleger, Stan] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Xu, CG (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87955 USA. EM xuchongang@gmail.com RI Liang, Chao/A-5929-2009; xu, chonggang/B-1256-2012; Wullschleger, Stan/B-8297-2012; OI Wullschleger, Stan/0000-0002-9869-0446; Xu, Chonggang/0000-0002-0937-5744 NR 9 TC 8 Z9 9 U1 8 U2 64 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1740-1526 J9 NAT REV MICROBIOL JI Nat. Rev. Microbiol. PD MAR PY 2011 VL 9 IS 3 DI 10.1038/nrmicro2439-c1 PG 2 WC Microbiology SC Microbiology GA 721YZ UT WOS:000287395700015 PM 21326276 ER PT J AU Leskovjan, AC Kretlow, A Lanzirotti, A Barrea, R Vogt, S Miller, LM AF Leskovjan, Andreana C. Kretlow, Ariane Lanzirotti, Antonio Barrea, Raul Vogt, Stefan Miller, Lisa M. TI Increased brain iron coincides with early plaque formation in a mouse model of Alzheimer's disease SO NEUROIMAGE LA English DT Article DE Alzheimer's disease; Transgenic mice; Iron; Copper; Zinc; Amyloid plaques; Cortex; Hippocampus; X-ray fluorescence; Imaging ID HISTOCHEMICALLY-REACTIVE ZINC; PARKINSONS-DISEASE; AMYLOID PLAQUES; TRANSGENIC MICE; SENILE PLAQUES; COPPER; AGE; MICROSCOPY; MICROPROBE; PATHOLOGY AB Elevated brain iron content, which has been observed in late-stage human Alzheimer's disease, is a potential target for early diagnosis. However, the time course for iron accumulation is currently unclear. Using the PSAPP mouse model of amyloid plaque formation, we conducted a time course study of metal ion content and distribution [iron (Fe), copper (Cu), and zinc (Zn)] in the cortex and hippocampus using X-ray fluorescence microscopy (XFM). We found that iron in the cortex was 34% higher than age-matched controls at an early stage, corresponding to the commencement of plaque formation. The elevated iron was not associated with the amyloid plaques. Interestingly, none of the metal ions were elevated in the amyloid plaques until the latest time point (56 weeks), where only the Zn content was significantly elevated by 38%. Since neuropathological changes in human Alzheimer's disease are presumed to occur years before the first cognitive symptoms appear, quantification of brain iron content could be a powerful marker for early diagnosis of Alzheimer's disease. (c) 2010 Elsevier Inc. All rights reserved. C1 [Leskovjan, Andreana C.; Kretlow, Ariane; Miller, Lisa M.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Leskovjan, Andreana C.; Miller, Lisa M.] SUNY Stony Brook, Dept Biomed Engn, Stony Brook, NY 11794 USA. [Lanzirotti, Antonio] Univ Chicago, Ctr Adv Radiat Sources, Chicago, IL 60637 USA. [Barrea, Raul] IIT, Dept Biol, Ctr Synchrotron Radiat Res & Instrumentat, Chicago, IL 60616 USA. [Barrea, Raul] IIT, Dept Chem, Chicago, IL 60616 USA. [Barrea, Raul] IIT, Dept Phys Sci, Chicago, IL 60616 USA. [Vogt, Stefan] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA. RP Miller, LM (reprint author), Brookhaven Natl Lab, Natl Synchrotron Light Source, Bldg 725D,75 Brookhaven Ave, Upton, NY 11973 USA. EM lmiller@bnl.gov RI ID, BioCAT/D-2459-2012; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013 OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513 FU NIH [R01-GM66873]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886, DE-AC02-06CH11357]; BioCAT (APS Beamline 18-ID) is a National Institutes of Health [RR-08630] FX We thank J. Collins for her skillful technical assistance with the animal dissection. This work was funded by NIH Grant R01-GM66873. The NSLS is funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DE-AC02-98CH10886. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. BioCAT (APS Beamline 18-ID) is a National Institutes of Health-supported Research Center RR-08630. NR 42 TC 54 Z9 58 U1 4 U2 23 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1053-8119 J9 NEUROIMAGE JI Neuroimage PD MAR 1 PY 2011 VL 55 IS 1 BP 32 EP 38 DI 10.1016/j.neuroimage.2010.11.073 PG 7 WC Neurosciences; Neuroimaging; Radiology, Nuclear Medicine & Medical Imaging SC Neurosciences & Neurology; Radiology, Nuclear Medicine & Medical Imaging GA 716YH UT WOS:000287008900004 PM 21126592 ER PT J AU Chalupsky, J Bohacek, P Hajkova, V Hau-Riege, SP Heimann, PA Juha, L Krzywinski, J Messerschmidt, M Moeller, SP Nagler, B Rowen, M Schlotter, WF Swiggers, ML Turner, JJ AF Chalupsky, J. Bohacek, P. Hajkova, V. Hau-Riege, S. P. Heimann, P. A. Juha, L. Krzywinski, J. Messerschmidt, M. Moeller, S. P. Nagler, B. Rowen, M. Schlotter, W. F. Swiggers, M. L. Turner, J. J. TI Comparing different approaches to characterization of focused X-ray laser beams SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE X-ray laser; X-ray ablation; Beam focusing; Beam characterization; Beam profile measurement ID FREE-ELECTRON LASER; RADIATION; REGION AB X-ray lasers represent a powerful tool to explore matter under extreme conditions. A rigorous characterization of their output parameters is, therefore, of substantial importance for the purposes of the experiments being conducted at these sources. A profound knowledge of the spatial, temporal, spectral, statistical, coherence, and wavefront beam properties may protect us from an unwanted misinterpretation of the experimental data. We present an experimental technique of the spatial (transverse and longitudinal) characterization of the beam profile. Investigating ablative imprints in various materials, we evaluate the spatial properties of the incident beam, namely, the beam waist radius and position, the Rayleigh range, M(2) parameter, and divergence. In this paper, we recall briefly our recent work at the transverse beam profile reconstruction. A newly developed method of the longitudinal beam profile characterization is the main subject of this work. (C) 2010 Elsevier B.V. All rights reserved. C1 [Chalupsky, J.; Bohacek, P.; Hajkova, V.; Juha, L.] Acad Sci Czech Republic, Inst Phys, Prague 18221, Czech Republic. [Chalupsky, J.] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague 8, Czech Republic. [Hau-Riege, S. P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Heimann, P. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Krzywinski, J.; Messerschmidt, M.; Moeller, S. P.; Nagler, B.; Rowen, M.; Schlotter, W. F.; Swiggers, M. L.; Turner, J. J.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. RP Chalupsky, J (reprint author), Acad Sci Czech Republic, Inst Phys, Na Slovance 2, Prague 18221, Czech Republic. EM chal@fzu.cz RI Messerschmidt, Marc/F-3796-2010; Hajkova, Vera/G-9391-2014; Chalupsky, Jaromir/H-2079-2014 OI Messerschmidt, Marc/0000-0002-8641-3302; FU Czech Ministry of Education [LC510, LC528, ME10046, LA08024]; Czech Science Foundation [GAP208/10/2302]; Academy of Sciences of the Czech Republic [AV0Z10100523, IAAX00100903, KAN300100702]; Stanford University; Lawrence Berkeley National Laboratory (LBNL); University of Hamburg through BMBF [FSP 301]; Center for Free Electron Laser Science (CFEL); US Department of Energy's Office of Basic Energy Sciences; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX Authors appreciate a financial support provided by the Czech Ministry of Education (Projects LC510, LC528, ME10046, and LA08024), Czech Science Foundation (Grant GAP208/10/2302), and Academy of Sciences of the Czech Republic (Grants AV0Z10100523, IAAX00100903, and KAN300100702). Portions of this research were carried out on the SXR Instrument on the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory. The SXR Instrument is funded by a consortium whose membership include the LCLS, Stanford University, Lawrence Berkeley National Laboratory (LBNL), University of Hamburg through the BMBF priority program FSP 301: FLASH, and the Center for Free Electron Laser Science (CFEL). The LCLS is funded by the US Department of Energy's Office of Basic Energy Sciences. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 15 TC 28 Z9 28 U1 2 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD MAR 1 PY 2011 VL 631 IS 1 BP 130 EP 133 DI 10.1016/j.nima.2010.12.040 PG 4 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 730OA UT WOS:000288042100020 ER PT J AU Adriani, O Bonechi, L Bongi, M Castellini, G D'Alessandro, R Faus, A Fukatsu, K Haguenauer, M Itow, Y Kasahara, K Macina, D Mase, T Masuda, K Matsubara, Y Menjo, H Mitsuka, G Muraki, Y Nakai, M Noda, K Papini, P Perrot, AL Ricciarini, S Sako, T Suzuki, K Suzuki, T Shimizu, Y Taki, K Tamura, T Torii, S Tricomi, A Velasco, J Turner, WC Yoshida, K AF Adriani, O. Bonechi, L. Bongi, M. Castellini, G. D'Alessandro, R. Faus, A. Fukatsu, K. Haguenauer, M. Itow, Y. Kasahara, K. Macina, D. Mase, T. Masuda, K. Matsubara, Y. Menjo, H. Mitsuka, G. Muraki, Yasushi Nakai, M. Noda, K. Papini, P. Perrot, A-L. Ricciarini, S. Sako, T. Suzuki, K. Suzuki, T. Shimizu, Y. Taki, K. Tamura, T. Torii, S. Tricomi, A. Velasco, J. Turner, W. C. Yoshida, K. CA LHCf Collaboration TI Early results of the LHCf experiment and their contribution to ultra-high-energy cosmic ray physics SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Cosmic Ray International Seminars (CRIS 2010) CY SEP 13-17, 2010 CL Catania, ITALY C1 [Muraki, Yasushi] Konan Univ, Kobe, Hyogo, Japan. [Adriani, O.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Menjo, H.; Papini, P.; Ricciarini, S.] Ist Nazl Fis Nucl, Sez Firenze, Florence, Italy. [Faus, A.; Velasco, J.] IFIC Valencia, Valencia, Spain. [Fukatsu, K.; Itow, Y.; Mase, T.; Masuda, K.; Matsubara, Y.; Mitsuka, G.; Noda, K.; Sako, T.; Suzuki, K.; Taki, K.] Nagoya Univ, STElab, Nagoya, Aichi 4648601, Japan. [Haguenauer, M.] Ecole Polytech, F-91128 Palaiseau, France. [Kasahara, K.; Nakai, M.; Suzuki, T.; Shimizu, Y.; Torii, S.] Waseda Univ, Tokyo, Japan. [Macina, D.; Perrot, A-L.] CERN, CH-1211 Geneva 23, Switzerland. [Tamura, T.] Kanagawa Univ, Yokohama, Kanagawa, Japan. [Tricomi, A.] Ist Nazl Fis Nucl, Sez Catania, Catania, Italy. [Turner, W. C.] LBNL Berkeley, Berkeley, CA USA. [Yoshida, K.] Sibaura Inst Technol Urawa, Urawa, Saitama, Japan. RP Muraki, Y (reprint author), Konan Univ, Kobe, Hyogo, Japan. EM muraki@stelab.nagoya-u.ac.jp RI Bongi, Massimo/L-9417-2015; OI Bongi, Massimo/0000-0002-6050-1937; Ricciarini, Sergio Bruno/0000-0001-6176-3368; Castellini, Guido/0000-0002-0177-0643; Tricomi, Alessia Rita/0000-0002-5071-5501; Papini, Paolo/0000-0003-4718-2895 NR 5 TC 2 Z9 2 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD MAR-APR PY 2011 VL 212-13 BP 270 EP 276 DI 10.1016/j.nuclphysbps.2011.03.037 PG 7 WC Physics, Particles & Fields SC Physics GA 799AC UT WOS:000293253600037 ER PT J AU Ave, M Bohacova, M Daumiller, K Di Carlo, P Di Giulio, C San Luis, PF Gonzales, D Hojvat, C Horandel, JR Hrabovsky, M Iarlori, M Keilhauer, B Klages, H Kleifges, M Kuehn, F Monasor, M Nozka, L Palatka, M Petrera, S Privitera, P Ridky, J Rizi, V d'Orfeuil, BR Salamida, F Schovanek, P Smida, R Spinka, H Ulrich, A Verzi, V Williams, C AF Ave, M. Bohacova, M. Daumiller, K. Di Carlo, P. Di Giulio, C. San Luis, Pedro Facal Gonzales, D. Hojvat, C. Horandel, J. R. Hrabovsky, M. Iarlori, M. Keilhauer, B. Klages, H. Kleifges, M. Kuehn, F. Monasor, M. Nozka, L. Palatka, M. Petrera, S. Privitera, P. Ridky, J. Rizi, V. d'Orfeuil, B. Rouille Salamida, F. Schovanek, P. Smida, R. Spinka, H. Ulrich, A. Verzi, V. Williams, C. CA AIRFLY Collaboration TI Precise measurement of the absolute yield of fluorescence photons in atmospheric gases SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS LA English DT Proceedings Paper CT Cosmic Ray International Seminars (CRIS 2010) CY SEP 13-17, 2010 CL Catania, ITALY ID DEPENDENCE; DETECTOR AB We have performed a measurement of the absolute yield of fluorescence photons at the Fermi lab Test Beam. A systematic uncertainty at 5% level was achieved by the use of Cherenkov radiation as a reference calibration light source. A cross-check was performed by an independent calibration using a laser light source. A significant improvement on the energy scale uncertainty of Ultra-High Energy Cosmic Rays is expected. C1 [Bohacova, M.; San Luis, Pedro Facal; Monasor, M.; Privitera, P.; d'Orfeuil, B. Rouille; Williams, C.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Ave, M.; Daumiller, K.; Keilhauer, B.; Klages, H.; Salamida, F.; Smida, R.] Karlsruhe Inst Technol, IK, D-76021 Karlsruhe, Germany. [Bohacova, M.; Nozka, L.; Palatka, M.; Ridky, J.; Schovanek, P.] Acad Sci Czech Republic, Inst Phys, CZ-18221 Prague 8, Czech Republic. [Di Carlo, P.; Iarlori, M.; Petrera, S.; Rizi, V.] Univ Aquila, Dipartimento Fis, I-67010 Coppito, Aquila, Italy. [Bohacova, M.; San Luis, Pedro Facal; Monasor, M.; Privitera, P.; d'Orfeuil, B. Rouille] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Di Carlo, P.; Iarlori, M.; Petrera, S.; Rizi, V.] Ist Nazl Fis Nucl, I-67010 Coppito, Aquila, Italy. [Di Giulio, C.; Verzi, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy. [Di Giulio, C.; Verzi, V.] Sezione Ist Nazl Fis Nucl, I-00133 Rome, Italy. [Gonzales, D.] Karlsruhe Inst Technol, IEKP, D-76021 Karlsruhe, Germany. [Hojvat, C.; Kuehn, F.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Horandel, J. R.] Radboud Univ Nijmegen, IMAPP, NL-6500 GL Nijmegen, Netherlands. [Hrabovsky, M.] Palacky Univ, RCATM, Olomuc, Czech Republic. [Kleifges, M.] Karlsruhe Inst Technol, IPE, D-76021 Karlsruhe, Germany. [Spinka, H.] Argonne Natl Lab, Argonne, IL 60439 USA. [Ulrich, A.] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany. RP San Luis, PF (reprint author), Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA. EM facal@kicp.uchicago.edu RI Bohacova, Martina/G-5898-2014; Schovanek, Petr/G-7117-2014; Ridky, Jan/H-6184-2014; Di Giulio, Claudio/B-3319-2015; Di Carlo, Piero/C-1657-2016; Di Carlo, Piero/Q-4450-2016; OI Rizi, Vincenzo/0000-0002-5277-6527; Ridky, Jan/0000-0001-6697-1393; Di Giulio, Claudio/0000-0002-0597-4547; Di Carlo, Piero/0000-0003-4971-4509; Di Carlo, Piero/0000-0003-4971-4509; Salamida, Francesco/0000-0002-9306-8447; Petrera, Sergio/0000-0002-6029-1255 NR 8 TC 4 Z9 4 U1 1 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5632 J9 NUCL PHYS B-PROC SUP JI Nucl. Phys. B-Proc. Suppl. PD MAR-APR PY 2011 VL 212-13 BP 356 EP 361 DI 10.1016/j.nuclphysbps.2011.03.048 PG 6 WC Physics, Particles & Fields SC Physics GA 799AC UT WOS:000293253600049 ER PT J AU Dunleavy, EM Almouzni, G Karpen, GH AF Dunleavy, Elaine M. Almouzni, Genevieve Karpen, Gary H. TI H3.3 is deposited at centromeres in S phase as a placeholder for newly assembled CENP-A in G(1) phase SO NUCLEUS-AUSTIN LA English DT Article DE centromere; kinetochore; CENP-A; DNA replication; mitosis; cell cycle; histone deposition AB Centromeres are key regions of eukaryotic chromosomes that ensure proper chromosome segregation at cell division. In most eukaryotes, centromere identity is defined epigenetically by the presence of a centromeric histone H3 variant CenH3, called CENP-A in humans. How CENP-A is incorporated and reproducibly transmitted during the cell cycle is at the heart of this fundamental epigenetic mechanism. Centromeric DNA is replicated during S phase; however unlike replication-coupled assembly of canonical histones during S phase, newly synthesized CENP-A deposition at centromeres is restricted to a discrete time in late telophase/early G(1). These observations raise an important question: when 'old' CENP-A nucleosomes are segregated at the replication fork, are the resulting 'gaps' maintained until the next G(1), or are they filled by H3 nucleosomes during S phase and replaced by CENP-A in the following G(1)? Understanding such molecular mechanisms is important to reveal the composition/organization of centromeres in mitosis, when the kinetochore forms and functions. Here we investigate centromeric chromatin status during the cell cycle, using the SNAP-tag methodology to visualize old and new histones on extended chromatin fibers in human cells. Our results show that (1) both histone H3 variants H3.1 and H3.3 are deposited at centromeric domains in S phase and (2) there is reduced H3.3 (but not reduced H3.1) at centromeres in G(1) phase compared to S phase. These observations are consistent with a replacement model, where both H3.1 and H3.3 are deposited at centromeres in S phase and 'placeholder' H3.3 is replaced with CENP-A in G(1). C1 [Dunleavy, Elaine M.; Karpen, Gary H.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Genome Biol, Div Life Sci, Berkeley, CA 94720 USA. [Dunleavy, Elaine M.; Karpen, Gary H.] Univ Calif Berkeley, Dept Mol Cell Biol, Berkeley, CA 94720 USA. [Almouzni, Genevieve] Inst Curie, Lab Nucl Dynam & Genome Plast, UMR218, Ctr Natl Rech Sci, Paris, France. RP Karpen, GH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Genome Biol, Div Life Sci, Berkeley, CA 94720 USA. EM karpen@fruitfly.org FU EMBO; NIH [R01GM066272]; CenRNA [NT054_42267] FX This work and E.D. was funded by an EMBO short-term fellowship and Journal of Cell Science Travelling fellowship, NIH grant R01GM066272 to G.H.K. and A.N.R. "CenRNA" NT054_42267 to G.A. We thank W. Zhang for help with preparation of chromatin fibers and E. Boyarchuk for help with cloning of H3 SNAP-tagged constructs. NR 34 TC 83 Z9 84 U1 2 U2 10 PU LANDES BIOSCIENCE PI AUSTIN PA 1806 RIO GRANDE ST, AUSTIN, TX 78702 USA SN 1949-1034 J9 NUCLEUS-AUSTIN JI Nucleus-Austin PD MAR-APR PY 2011 VL 2 IS 2 BP 146 EP 157 DI 10.4161/nucl.2.2.15211 PG 12 WC Cell Biology SC Cell Biology GA V28GI UT WOS:000208668900014 PM 21738837 ER PT J AU Tommasi, S Iannelli, G Menolascina, F Fedele, V Bevilacqua, V Paradiso, A AF Tommasi, Stefania Iannelli, Giuseppina Menolascina, Filippo Fedele, Vita Bevilacqua, Vitoantonio Paradiso, Angelo TI Determining and Interpreting New Predictive Rules for Breast Cancer Familial Inheritance SO OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY LA English DT Article ID COMPARATIVE GENOMIC HYBRIDIZATION; GENES; SUSCEPTIBILITY; EXPRESSION; TUMORS; HEREDITARY; VARIANTS; PATHWAYS; TISSUE; BRCA1 AB DNA copy number alterations have been discovered to be key genetic events in development and progression of cancer. No clear data of familial and sporadic breast cancer are available. We focused on looking for an independent platform as a tool to identify the chromosomal profile in familial versus sporadic breast cancer patients. A total of 124 breast cancer patients were studied utilizing aCGH. The dataset was analyzed using Gaussian Mixture Models to determine the thresholds in order to assess gene copy number changes and to minimize the impact of noise on further data analyses. The identification of regions of consistent aberration across samples was carried out with statistical approaches and machine learning tools to draw profiles for familial and sporadic groups. Familial and sporadic cases resulted with a chromosome imbalance of 15% [false discovery rate (FDR): q=718E-5] and 18% (FDR: q=632E-13), respectively. The differential map evidenced two cytogenetic bands (8p23 and 11q13-11q14) significantly altered in familial versus sporadic cases (FDR: q=7E-4). The application of a new bioinformatics tool that discovers fuzzy classification rules (IFRAIS) let to individualize association of genes alterations that identify familial or sporadic cases. These results are comparable to those of the other systems used and are consistent from the biological point of view. C1 [Tommasi, Stefania; Iannelli, Giuseppina; Menolascina, Filippo; Fedele, Vita; Paradiso, Angelo] Natl Canc Ctr, Clin Expt Oncol Lab, I-70124 Bari, Italy. [Menolascina, Filippo; Bevilacqua, Vitoantonio] Polytech Bari, Electrotech & Elect Dept, Bari, Italy. [Fedele, Vita] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Tommasi, S (reprint author), Natl Canc Ctr, Clin Expt Oncol Lab, Viale O Flacco 65, I-70124 Bari, Italy. EM s.tommasi@oncologico.bari.it RI Iannelli, Pina/B-2329-2012; Tommasi, Stefania/J-6732-2012; OI Tommasi, Stefania/0000-0002-2157-2978; Bevilacqua, Vitoantonio/0000-0002-3088-0788 NR 34 TC 1 Z9 1 U1 0 U2 4 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1536-2310 J9 OMICS JI OMICS PD MAR PY 2011 VL 15 IS 3 BP 125 EP 131 DI 10.1089/omi.2010.0080 PG 7 WC Biotechnology & Applied Microbiology; Genetics & Heredity SC Biotechnology & Applied Microbiology; Genetics & Heredity GA 730XY UT WOS:000288072100006 PM 21319992 ER PT J AU Mitri, FG AF Mitri, F. G. TI Vector wave analysis of an electromagnetic high-order Bessel vortex beam of fractional type alpha SO OPTICS LETTERS LA English DT Article ID DIFFRACTION THEORY AB The scalar wave theory of nondiffracting electromagnetic (EM)high-order Bessel vortex beams of fractional type a has been recently explored, and their novel features and promising applications have been revealed. However, complete characterization of the properties for this new type of beam requires a vector analysis to determine the fields' components in space because scalar wave theory is inadequate to describe such beams, especially when the central spot is comparable to the wavelength (k(r)/k approximate to 1, where k(r) is the radial component of the wavenumber k). Stemming from Maxwell's vector equations and the Lorenz gauge condition, a full vector wave analysis for the electric and magnetic fields is presented. The results are of particular importance in the study of EM wave scattering of a high-order Bessel vortex beam of fractional type a by particles. (C) 2011 Optical Society of America C1 Los Alamos Natl Lab, Sensors & Electrochem Devices Acoust & Sensors Te, Los Alamos, NM 87545 USA. RP Mitri, FG (reprint author), Los Alamos Natl Lab, Sensors & Electrochem Devices Acoust & Sensors Te, MPA 11,MS D429, Los Alamos, NM 87545 USA. EM mitri@lanl.gov NR 12 TC 25 Z9 25 U1 2 U2 9 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD MAR 1 PY 2011 VL 36 IS 5 BP 606 EP 608 DI 10.1364/OL.36.000606 PG 3 WC Optics SC Optics GA 728ZH UT WOS:000287912500004 PM 21368922 ER PT J AU Mitri, FG AF Mitri, F. G. TI Arbitrary scattering of an electromagnetic zero-order Bessel beam by a dielectric sphere SO OPTICS LETTERS LA English DT Article ID FOCUSED LASER-BEAM; GAUSSIAN-BEAM AB Arbitrary electromagnetic (EM) scattering of a zero-order Bessel beam by a homogeneous water sphere in air is investigated. The radial components of the electric and magnetic scattering fields are expressed using a partial wave series involving the beam-shape coefficients, scattering coefficients of the sphere, and half-conical angle of the wavenumber components of the beam. The 3D scattering directivity plots in the far-field region are evaluated using a numerical integration procedure. It is shown here that shifting the sphere off the axis of wave propagation breaks the symmetry in the directivity patterns. Moreover, the scattering strongly depends on the half-cone angle of the beam. This investigation could provide a useful test of finite element codes for the evaluation of EM scattering and radiation forces, which are important in optical tweezers and related particle manipulation applications. c 2011 Optical Society of America C1 Los Alamos Natl Lab, Sensors & Elect Devices Acoust & Sensors Technol, Los Alamos, NM 87545 USA. RP Mitri, FG (reprint author), Los Alamos Natl Lab, Sensors & Elect Devices Acoust & Sensors Technol, MPA 11,MS D429, Los Alamos, NM 87545 USA. EM mitri@lanl.gov NR 15 TC 40 Z9 42 U1 2 U2 11 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD MAR 1 PY 2011 VL 36 IS 5 BP 766 EP 768 DI 10.1364/OL.36.000766 PG 3 WC Optics SC Optics GA 728ZH UT WOS:000287912500058 PM 21368976 ER PT J AU Chen, SY Walsh, A Yang, JH Gong, XG Sun, L Yang, PX Chu, JH Wei, SH AF Chen, Shiyou Walsh, Aron Yang, Ji-Hui Gong, X. G. Sun, Lin Yang, Ping-Xiong Chu, Jun-Hao Wei, Su-Huai TI Compositional dependence of structural and electronic properties of Cu2ZnSn(S,Se)(4) alloys for thin film solar cells SO PHYSICAL REVIEW B LA English DT Article ID BAND OFFSETS; II-VI; CU2ZNSNS4; EFFICIENCY; ABSORBER AB A thin-film solar cell based on Cu2ZnSn(S,Se)(4) (CZTSSe) alloy was recently found to exhibit a light to electricity conversion efficiency of 10%, making it competitive with the more mature Cu(In,Ga)Se-2 based technologies. We study the compositional dependence of the physical properties of CZTSSe alloys through first-principles calculations and find that these mixed-anion alloys are highly miscible with low enthalpies of formation, and the cations maintain the same ordering preferences as the parent compounds Cu2ZnSnS4 and Cu2ZnSnSe4. The band gap of the CZTSSe alloy decreases with the Se content almost linearly, and the band alignment between Cu2ZnSnS4 and Cu2ZnSnSe4 is of type I, which allows for more facile n-type and p-type doping for alloys with high Se content. Based on these results we analyze the influence of composition on the efficiency of CZTSSe solar cells and explain the high efficiency of the cells with high Se content. C1 [Chen, Shiyou; Yang, Ji-Hui; Gong, X. G.] Fudan Univ, Lab Computat Phys Sci, Shanghai 200433, Peoples R China. [Chen, Shiyou; Yang, Ji-Hui; Gong, X. G.] Fudan Univ, Surface Phys Lab, Shanghai 200433, Peoples R China. [Chen, Shiyou; Sun, Lin; Yang, Ping-Xiong; Chu, Jun-Hao] E China Normal Univ, Lab Polar Mat & Devices, Shanghai 200241, Peoples R China. [Walsh, Aron] UCL, Dept Chem, London WC1E 6BT, England. [Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Chen, SY (reprint author), Fudan Univ, Lab Computat Phys Sci, Shanghai 200433, Peoples R China. RI Walsh, Aron/A-7843-2008; gong, xingao /B-1337-2010; Sun, Lin/P-9141-2014; gong, xingao/D-6532-2011 OI Walsh, Aron/0000-0001-5460-7033; Sun, Lin/0000-0001-5615-1519; FU Natural Sciences Foundation (NSF) of China [10934002, 1095011032, 61076060, 10950110324]; Research Program of Shanghai municipality; MOE; NSF of Shanghai [10ZR1408800]; Fundamental Research Funds for the Central Universities; European Union; US Department of Energy [DE-AC36-08GO28308] FX The work in Fudan is supported by the Natural Sciences Foundation (NSF) of China (Grants No. 10934002 and No. 1095011032), the Research Program of Shanghai municipality and MOE, the Special Funds for Major State Basic Research. The work in ECNU is supported by NSF of Shanghai (Grant No. 10ZR1408800) and China (Grant No. 61076060) and the Fundamental Research Funds for the Central Universities. A. W. would like to acknowledge funding of a Marie-Curie Fellowship from the European Union and an International Young Scientist Fellowship from NSF of China (No. 10950110324). The work at NREL is funded by the US Department of Energy, under Contract No. DE-AC36-08GO28308. NR 39 TC 197 Z9 200 U1 11 U2 123 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD MAR 1 PY 2011 VL 83 IS 12 AR 125201 DI 10.1103/PhysRevB.83.125201 PG 5 WC Physics, Condensed Matter SC Physics GA 727ZL UT WOS:000287841800001 ER PT J AU Ranjbar, A Khazaei, M Venkataramanan, NS Lee, H Kawazoe, Y AF Ranjbar, Ahmad Khazaei, Mohammad Venkataramanan, Natarajan Sathiyamoorthy Lee, Hoonkyung Kawazoe, Yoshiyuki TI Chemical engineering of adamantane by lithium functionalization: A first-principles density functional theory study SO PHYSICAL REVIEW B LA English DT Article ID DOPED CARBON NANOTUBES; GENERALIZED GRADIENT APPROXIMATION; ENHANCED HYDROGEN STORAGE; METAL-ORGANIC FRAMEWORKS; F-19 NMR; ADSORPTION; MOLECULES; DIAMOND; POLARIZABILITY; SIMULATIONS AB Using first-principles density functional theory, we investigated the hydrogen storage capacity of Li-functionalized adamantane. We showed that if one of the acidic hydrogen atoms of adamantane is replaced by Li/Li+, the resulting complex is activated and ready to adsorb hydrogen molecules at a high gravimetric weight percent of around similar to 7.0%. Due to polarization of hydrogen molecules under the induced electric field generated by positively charged Li/Li+, they are adsorbed on ADM.Li/Li+ complexes with an average binding energy of similar to-0.15 eV/H-2, desirable for hydrogen storage applications. We also examined the possibility of the replacement of a larger number of acidic hydrogen atoms of adamantane by Li/Li+ and the possibility of aggregations of formed complexes in experiments. The stability of the proposed structures was investigated by calculating vibrational spectra and doing MD simulations. C1 [Ranjbar, Ahmad; Khazaei, Mohammad; Kawazoe, Yoshiyuki] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan. [Venkataramanan, Natarajan Sathiyamoorthy] Calif State Univ Hayward, Coll Sci, Hayward, CA 94542 USA. [Lee, Hoonkyung] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Lee, Hoonkyung] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Ranjbar, A (reprint author), Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan. EM ranjbar@imr.edu RI Kawazoe, Yoshiyuki/C-2998-2011; Ranjbar, Ahmad/B-9182-2013; Khazaei, Mohammad/B-4333-2014; Ranjbar, Ahmad/C-4010-2016 OI Khazaei, Mohammad/0000-0001-5093-1610; Ranjbar, Ahmad/0000-0002-6381-3135 FU Society for the Promotion of Science (JSPS); MEXT, Japan FX The authors gratefully acknowledge the Center for Computational Materials Science at the Institute for Materials Research for use of the Hitachi SR11000 (Model K2) supercomputer system. M. Khazaei thanks the Japan Society for the Promotion of Science (JSPS) for financial support. This work was supported partly by Global COE Program "Materials Integration (International Center of Education and Research), Tohoku University," MEXT, Japan. NR 62 TC 8 Z9 8 U1 1 U2 21 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD MAR 1 PY 2011 VL 83 IS 11 AR 115401 DI 10.1103/PhysRevB.83.115401 PG 8 WC Physics, Condensed Matter SC Physics GA 727ZJ UT WOS:000287841600001 ER PT J AU Yang, XH Ye, CY Cheng, ZM Tschaplinski, TJ Wullschleger, SD Yin, WL Xia, XL Tuskan, GA AF Yang, Xiaohan Ye, Chu-Yu Cheng, Zong-Ming Tschaplinski, Timothy J. Wullschleger, Stan D. Yin, Weilun Xia, Xinli Tuskan, Gerald A. TI Genomic aspects of research involving polyploid plants SO PLANT CELL TISSUE AND ORGAN CULTURE LA English DT Review DE Evolution; Genetics; Epigenetics ID POLYMORPHISM SNP DISCOVERY; DUPLICATE GENE-EXPRESSION; FLOW-CYTOMETRY; ARABIDOPSIS-THALIANA; BRASSICA-NAPUS; FLORAL REVERSION; FUNCTIONAL DIVERGENCE; UNEQUAL CONTRIBUTIONS; EVOLUTIONARY SUCCESS; COTTON GOSSYPIUM AB Almost all extant plant species have doubled their genomes at least once in their evolutionary histories, resulting in polyploidy which provided a rich genomic resource for evolutionary processes. Moreover, superior polyploid clones have been developed during the process of crop domestication. Polyploid plants generated by evolutionary processes and/or crop domestication have been the intentional or serendipitous focus of research dealing with the dynamics and consequences of genome evolution. One of the new trends in genomics research is to create synthetic polyploid plants which provide materials for studying the initial genomic changes/responses immediately after polyploid formation. Polyploid plants are also used in functional genomics research to study gene expression in a complex genomic background. In this review, we summarize recent progress in genomics research involving ancient, young, and synthetic polyploid plants, with a focus on genome size evolution, genomic diversity, genomic rearrangement, genetic and epigenetic changes in duplicated genes, gene discovery, and comparative genomics. Implications on plant sciences including evolution, functional genomics, and plant breeding are presented. Polyploids will be a focus of genomic research in the future as rapid advances in DNA sequencing technology create unprecedented opportunities for discovering and monitoring genomic and transcriptomic changes. The accumulation of knowledge on polyploid formation, maintenance, and divergence at whole-genome and subgenome levels will not only help plant biologists understand how plants have evolved and diversified, but also assist plant breeders in designing new strategies for crop improvement. C1 [Yang, Xiaohan; Ye, Chu-Yu; Tschaplinski, Timothy J.; Tuskan, Gerald A.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Yang, Xiaohan; Ye, Chu-Yu; Cheng, Zong-Ming; Tschaplinski, Timothy J.; Tuskan, Gerald A.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. [Wullschleger, Stan D.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. [Cheng, Zong-Ming] Univ Tennessee, Dept Plant Sci, Knoxville, TN 37996 USA. [Yin, Weilun; Xia, Xinli] Beijing Forestry Univ, Natl Engn Lab Tree Breeding, Beijing 100083, Peoples R China. RP Yang, XH (reprint author), Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. EM yangx@ornl.gov RI Wullschleger, Stan/B-8297-2012; Tuskan, Gerald/A-6225-2011; Yang, Xiaohan/A-6975-2011; OI Wullschleger, Stan/0000-0002-9869-0446; Tuskan, Gerald/0000-0003-0106-1289; Yang, Xiaohan/0000-0001-5207-4210; Tschaplinski, Timothy/0000-0002-9540-6622 FU U.S. DOE Office of Biological and Environmental Research; U.S. DOE BioEnergy Science Center; Office of Biological and Environmental Research in the DOE Office of Science; U.S. Department of Energy [DE-AC05-00OR22725] FX The writing of this review was supported by the U.S. DOE Office of Biological and Environmental Research, Genomic Science Program, and the U.S. DOE BioEnergy Science Center. The BioEnergy Science Center is a U.S. Department of Energy Bioenergy Research Center supported by the Office of Biological and Environmental Research in the DOE Office of Science. Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract Number DE-AC05-00OR22725. NR 94 TC 26 Z9 26 U1 3 U2 56 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0167-6857 J9 PLANT CELL TISS ORG JI Plant Cell Tissue Organ Cult. PD MAR PY 2011 VL 104 IS 3 SI SI BP 387 EP 397 DI 10.1007/s11240-010-9826-1 PG 11 WC Biotechnology & Applied Microbiology; Plant Sciences SC Biotechnology & Applied Microbiology; Plant Sciences GA 722RX UT WOS:000287453100010 ER PT J AU McDowell, NG AF McDowell, Nathan G. TI Mechanisms Linking Drought, Hydraulics, Carbon Metabolism, and Vegetation Mortality SO PLANT PHYSIOLOGY LA English DT Editorial Material ID INDUCED TREE MORTALITY; TEMPERATE FOREST TREES; BARK BEETLES; ISOTOPE DISCRIMINATION; INTENSE DROUGHT; PLANT-GROWTH; WOODY-PLANTS; DIE-OFF; XYLEM; ARABIDOPSIS C1 Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. RP McDowell, NG (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. EM mcdowell@lanl.gov NR 94 TC 315 Z9 323 U1 19 U2 220 PU AMER SOC PLANT BIOLOGISTS PI ROCKVILLE PA 15501 MONONA DRIVE, ROCKVILLE, MD 20855 USA SN 0032-0889 J9 PLANT PHYSIOL JI Plant Physiol. PD MAR PY 2011 VL 155 IS 3 BP 1051 EP 1059 DI 10.1104/pp.110.170704 PG 9 WC Plant Sciences SC Plant Sciences GA 727ZY UT WOS:000287843800001 PM 21239620 ER PT J AU Manabe, Y Nafisi, M Verhertbruggen, Y Orfila, C Gille, S Rautengarten, C Cherk, C Marcus, SE Somerville, S Pauly, M Knox, JP Sakuragi, Y Scheller, HV AF Manabe, Yuzuki Nafisi, Majse Verhertbruggen, Yves Orfila, Caroline Gille, Sascha Rautengarten, Carsten Cherk, Candice Marcus, Susan E. Somerville, Shauna Pauly, Markus Knox, J. Paul Sakuragi, Yumiko Scheller, Henrik Vibe TI Loss-of-Function Mutation of REDUCED WALL ACETYLATION2 in Arabidopsis Leads to Reduced Cell Wall Acetylation and Increased Resistance to Botrytis cinerea SO PLANT PHYSIOLOGY LA English DT Article ID DISEASE RESISTANCE; REVERSE GENETICS; BIOSYNTHESIS; GENES; POLYSACCHARIDES; IDENTIFICATION; EXPRESSION; THALIANA; OLIGOSACCHARIDES; SENSITIVITY AB Nearly all polysaccharides in plant cell walls are O-acetylated, including the various pectic polysaccharides and the hemicelluloses xylan, mannan, and xyloglucan. However, the enzymes involved in the polysaccharide acetylation have not been identified. While the role of polysaccharide acetylation in vivo is unclear, it is known to reduce biofuel yield from lignocellulosic biomass by the inhibition of microorganisms used for fermentation. We have analyzed four Arabidopsis (Arabidopsis thaliana) homologs of the protein Cas1p known to be involved in polysaccharide O-acetylation in Cryptococcus neoformans. Loss-of-function mutants in one of the genes, designated REDUCED WALL ACETYLATION2 (RWA2), had decreased levels of acetylated cell wall polymers. Cell wall material isolated from mutant leaves and treated with alkali released about 20% lower amounts of acetic acid when compared with the wild type. The same level of acetate deficiency was found in several pectic polymers and in xyloglucan. Thus, the rwa2 mutations affect different polymers to the same extent. There were no obvious morphological or growth differences observed between the wild type and rwa2 mutants. However, both alleles of rwa2 displayed increased tolerance toward the necrotrophic fungal pathogen Botrytis cinerea. C1 [Scheller, Henrik Vibe] Univ Calif Berkeley, Lawrence Berkeley Lab, Joint Bioenergy Inst, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Nafisi, Majse; Orfila, Caroline; Sakuragi, Yumiko; Scheller, Henrik Vibe] Univ Copenhagen, VKR Res Ctr Pro Plants 7Act, Plant Mol Biol Lab, Dept Plant Biol & Biotechnol, DK-1871 Frederiksberg C, Denmark. [Marcus, Susan E.; Knox, J. Paul] Univ Leeds, Ctr Plant Sci, Fac Biol Sci, Leeds LS2 9JT, W Yorkshire, England. [Gille, Sascha; Cherk, Candice; Somerville, Shauna; Pauly, Markus] Univ Calif Berkeley, Energy Biosci Inst, Berkeley, CA 94720 USA. [Gille, Sascha; Cherk, Candice; Somerville, Shauna; Pauly, Markus; Scheller, Henrik Vibe] Univ Calif Berkeley, Dept Plant & Microbial Biol, Berkeley, CA 94720 USA. RP Scheller, HV (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Joint Bioenergy Inst, Berkeley, CA 94720 USA. EM hscheller@lbl.gov RI Pauly, Markus/B-5895-2008; Knox, Paul/H-4577-2012; Scheller, Henrik/A-8106-2008; OI Pauly, Markus/0000-0002-3116-2198; Knox, Paul/0000-0002-9231-6891; Scheller, Henrik/0000-0002-6702-3560; Verhertbruggen, Yves/0000-0003-4114-5428; Orfila, Caroline/0000-0003-2564-8068; Sakuragi, Yumiko/0000-0002-9405-5197 FU U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231]; Danish Natural Science Research Council; Department of Energy FX This work was supported by the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research (contract no. DE-AC02-05CH11231 between Lawrence Berkeley National Laboratory and the U. S. Department of Energy) and by the Danish Natural Science Research Council. C. C. was supported in part by a Department of Energy grant to S. S. NR 48 TC 64 Z9 72 U1 2 U2 37 PU AMER SOC PLANT BIOLOGISTS PI ROCKVILLE PA 15501 MONONA DRIVE, ROCKVILLE, MD 20855 USA SN 0032-0889 J9 PLANT PHYSIOL JI Plant Physiol. PD MAR PY 2011 VL 155 IS 3 BP 1068 EP 1078 DI 10.1104/pp.110.168989 PG 11 WC Plant Sciences SC Plant Sciences GA 727ZY UT WOS:000287843800003 PM 21212300 ER PT J AU Heideker, J Prudden, J Perry, JJP Tainer, JA Boddy, MN AF Heideker, Johanna Prudden, John Perry, J. Jefferson P. Tainer, John A. Boddy, Michael N. TI SUMO-Targeted Ubiquitin Ligase, Rad60, and Nse2 SUMO Ligase Suppress Spontaneous Top1-Mediated DNA Damage and Genome Instability SO PLOS GENETICS LA English DT Article ID MITOTIC INTRACHROMOSOMAL RECOMBINATION; YEAST SCHIZOSACCHAROMYCES-POMBE; CHECKPOINT KINASE CDS1; STRAND BREAK REPAIR; TOPOISOMERASE-I; FISSION YEAST; SACCHAROMYCES-CEREVISIAE; COVALENT COMPLEXES; SMC5-SMC6 COMPLEX; PROTEIN COMPLEXES AB Through as yet undefined proteins and pathways, the SUMO-targeted ubiquitin ligase (STUbL) suppresses genomic instability by ubiquitinating SUMO conjugated proteins and driving their proteasomal destruction. Here, we identify a critical function for fission yeast STUbL in suppressing spontaneous and chemically induced topoisomerase I (Top1)-mediated DNA damage. Strikingly, cells with reduced STUbL activity are dependent on tyrosyl-DNA phosphodiesterase 1 (Tdp1). This is notable, as cells lacking Tdp1 are largely aphenotypic in the vegetative cell cycle due to the existence of alternative pathways for the removal of covalent Top1-DNA adducts (Top1cc). We further identify Rad60, a SUMO mimetic and STUbL-interacting protein, and the SUMO E3 ligase Nse2 as critical Top1cc repair factors in cells lacking Tdp1. Detection of Top1ccs using chromatin immunoprecipitation and quantitative PCR shows that they are elevated in cells lacking Tdp1 and STUbL, Rad60, or Nse2 SUMO ligase activity. These unrepaired Top1ccs are shown to cause DNA damage, hyper-recombination, and checkpoint-mediated cell cycle arrest. We further determine that Tdp1 and the nucleotide excision repair endonuclease Rad16-Swi10 initiate the major Top1cc repair pathways of fission yeast. Tdp1-based repair is the predominant activity outside S phase, likely acting on transcription-coupled Top1cc. Epistasis analyses suggest that STUbL, Rad60, and Nse2 facilitate the Rad16-Swi10 pathway, parallel to Tdp1. Collectively, these results reveal a unified role for STUbL, Rad60, and Nse2 in protecting genome stability against spontaneous Top1-mediated DNA damage. C1 [Heideker, Johanna; Prudden, John; Perry, J. Jefferson P.; Tainer, John A.; Boddy, Michael N.] Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA. [Perry, J. Jefferson P.] Amrita Vishwa Vidya Peetham, Sch Biotechnol, Amritapuri, Kerala, India. [Tainer, John A.] Lawrence Berkeley Natl Lab, Dept Mol Biol, Div Life Sci, Berkeley, CA USA. RP Heideker, J (reprint author), Scripps Res Inst, Dept Mol Biol, 10666 N Torrey Pines Rd, La Jolla, CA 92037 USA. EM nboddy@scripps.edu FU National Institutes of Health [GM068608, GM081840]; Leukemia & Lymphoma Society; Boehringer Ingelheim Fonds FX This study was funded by the National Institutes of Health (http://www.nih.gov/) grants GM068608 and GM081840 awarded to MNB, who is supported by a Scholar Award from The Leukemia & Lymphoma Society (http://www.leukemia-lymphoma.org/hm_lls). JH is supported by a predoctoral fellowship from Boehringer Ingelheim Fonds (http://www.bifonds.de/cgi-bin/index.pl). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 60 TC 21 Z9 21 U1 0 U2 3 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1553-7404 J9 PLOS GENET JI PLoS Genet. PD MAR PY 2011 VL 7 IS 3 AR e1001320 DI 10.1371/journal.pgen.1001320 PG 12 WC Genetics & Heredity SC Genetics & Heredity GA 743DD UT WOS:000288996600002 PM 21408210 ER PT J AU Fu, CX Mielenz, JR Xiao, XR Ge, YX Hamilton, CY Rodriguez, M Chen, F Foston, M Ragauskas, A Bouton, J Dixon, RA Wang, ZY AF Fu, Chunxiang Mielenz, Jonathan R. Xiao, Xirong Ge, Yaxin Hamilton, Choo Y. Rodriguez, Miguel, Jr. Chen, Fang Foston, Marcus Ragauskas, Arthur Bouton, Joseph Dixon, Richard A. Wang, Zeng-Yu TI Genetic manipulation of lignin reduces recalcitrance and improves ethanol production from switchgrass SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE biofuel crop; cellulosic ethanol; lignin modification; Panicum virgatum ID FESCUE FESTUCA-ARUNDINACEA; TRANSGENIC DOWN-REGULATION; DILUTE SULFURIC-ACID; ENZYMATIC-HYDROLYSIS; CELLULOSIC BIOMASS; SUGAR YIELDS; CORN STOVER; PRETREATMENT; ALFALFA; DIGESTIBILITY AB Switchgrass is a leading dedicated bioenergy feedstock in the United States because it is a native, high-yielding, perennial prairie grass with a broad cultivation range and low agronomic input requirements. Biomass conversion research has developed processes for production of ethanol and other biofuels, but they remain costly primarily because of the intrinsic recalcitrance of biomass. We show here that genetic modification of switchgrass can produce phenotypically normal plants that have reduced thermal-chemical (<= 180 degrees C), enzymatic, and microbial recalcitrance. Down-regulation of the switchgrass caffeic acid O-methyltransferase gene decreases lignin content modestly, reduces the syringyl: guaiacyl lignin monomer ratio, improves forage quality, and, most importantly, increases the ethanol yield by up to 38% using conventional biomass fermentation processes. The down-regulated lines require less severe pretreatment and 300-400% lower cellulase dosages for equivalent product yields using simultaneous saccharification and fermentation with yeast. Furthermore, fermentation of diluted acid-pretreated transgenic switchgrass using Clostridium thermocellum with no added enzymes showed better product yields than obtained with unmodified switchgrass. Therefore, this apparent reduction in the recalcitrance of transgenic switchgrass has the potential to lower processing costs for biomass fermentation-derived fuels and chemicals significantly. Alternatively, such modified transgenic switchgrass lines should yield significantly more fermentation chemicals per hectare under identical process conditions. C1 [Chen, Fang; Dixon, Richard A.] Samuel Roberts Noble Fdn Inc, Plant Biol Div, Ardmore, OK 73401 USA. [Fu, Chunxiang; Xiao, Xirong; Ge, Yaxin; Bouton, Joseph; Wang, Zeng-Yu] Samuel Roberts Noble Fdn Inc, Forage Improvement Div, Ardmore, OK 73401 USA. [Mielenz, Jonathan R.; Hamilton, Choo Y.; Rodriguez, Miguel, Jr.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. [Mielenz, Jonathan R.; Xiao, Xirong; Hamilton, Choo Y.; Rodriguez, Miguel, Jr.; Chen, Fang; Foston, Marcus; Ragauskas, Arthur; Dixon, Richard A.; Wang, Zeng-Yu] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. [Foston, Marcus; Ragauskas, Arthur] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA. RP Dixon, RA (reprint author), Samuel Roberts Noble Fdn Inc, Plant Biol Div, Ardmore, OK 73401 USA. EM radixon@noble.org; zywang@noble.org FU US Department of Agriculture; US Department of Energy Biomass Initiative [2009-10003-05140]; BioEnergy Science Center; Samuel Roberts Noble Foundation; Office of Biological and Environmental Research in the US Department of Energy Office of Science; US Department of Energy [DE-AC05-00OR22725] FX We thank Drs. Richard Flavell and Steven Thomas for critical reading of the manuscript, Ko Shimamoto for providing the pANDA vector, David Huhman for assistance with mass spectrometry, Tui Ray and Yuhong Tang for assistance with real-time PCR, and Dennis Walker for assistance with forage quality analysis. We thank Karsten Steinhaeuser for preparing Fig. 4C and Genencor International for supplying the cellulase and beta-glucosidase. This work was supported by the US Department of Agriculture and US Department of Energy Biomass Initiative Project 2009-10003-05140, the BioEnergy Science Center, and the Samuel Roberts Noble Foundation. The BioEnergy Science Center is a US Department of Energy Bioenergy Research Center supported by the Office of Biological and Environmental Research in the US Department of Energy Office of Science. A portion of this work was performed at Oak Ridge National Laboratory, which is managed by UT-Battelle, LLC, for the US Department of Energy under Contract DE-AC05-00OR22725. NR 30 TC 285 Z9 298 U1 18 U2 172 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD MAR 1 PY 2011 VL 108 IS 9 BP 3803 EP 3808 DI 10.1073/pnas.1100310108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 728AD UT WOS:000287844400066 PM 21321194 ER PT J AU Wu, HW Volponi, JV Oliver, AE Parikh, AN Simmons, BA Singh, S AF Wu, Huawen Volponi, Joanne V. Oliver, Ann E. Parikh, Atul N. Simmons, Blake A. Singh, Seema TI In vivo lipidomics using single-cell Raman spectroscopy SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE lipid analysis; bioenergy ID NEOCHLORIS-OLEOABUNDANS; QUANTITATIVE-ANALYSIS; LIVING CELLS; RAPID METHOD; ALGAL CELLS; GREEN-ALGAE; FATTY-ACIDS; MICROALGAE; LIPIDS; TEMPERATURE AB We describe a method for direct, quantitative, in vivo lipid profiling of oil-producing microalgae using single-cell laser-trapping Raman spectroscopy. This approach is demonstrated in the quantitative determination of the degree of unsaturation and transition temperatures of constituent lipids within microalgae. These properties are important markers for determining engine compatibility and performance metrics of algal biodiesel. We show that these factors can be directly measured from a single living microalgal cell held in place with an optical trap while simultaneously collecting Raman data. Cellular response to different growth conditions is monitored in real time. Our approach circumvents the need for lipid extraction and analysis that is both slow and invasive. Furthermore, this technique yields real-time chemical information in a label-free manner, thus eliminating the limitations of impermeability, toxicity, and specificity of the fluorescent probes common in currently used protocols. Although the single-cell Raman spectroscopy demonstrated here is focused on the study of the microalgal lipids with biofuel applications, the analytical capability and quantitation algorithms demonstrated are applicable to many different organisms and should prove useful for a diverse range of applications in lipidomics. C1 [Wu, Huawen; Volponi, Joanne V.; Simmons, Blake A.; Singh, Seema] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA 94551 USA. [Oliver, Ann E.; Parikh, Atul N.] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA. RP Singh, S (reprint author), Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA 94551 USA. EM seesing@sandia.gov RI PARIKH, ATUL/D-2243-2014; Wu, Huawen/A-8832-2015 OI Simmons, Blake/0000-0002-1332-1810; PARIKH, ATUL/0000-0002-5927-4968; Wu, Huawen/0000-0002-7484-7170 FU Sandia National Laboratories [09-0800]; US Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; Division of Materials Science and Engineering, Office of Basic Energy Sciences, Department of Energy [DE-FG02-04ER46173] FX We thank Drs. Yin Yeh and Thomas Huser for generous support on the Raman instrument setup. We thank Dr. Ryan Davis for helpful discussions. This project was supported by Laboratory Directed Research and Development Program 09-0800 of Sandia National Laboratories (to S.S.). Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the US Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. Work at University of California, Davis, was supported by Grant DE-FG02-04ER46173 from the Division of Materials Science and Engineering, Office of Basic Energy Sciences, Department of Energy (to A.E.O. and A.N.P.). NR 50 TC 136 Z9 138 U1 8 U2 109 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD MAR 1 PY 2011 VL 108 IS 9 BP 3809 EP 3814 DI 10.1073/pnas.1009043108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 728AD UT WOS:000287844400067 PM 21310969 ER PT J AU Mukarakate, C Scheer, AM Robichaud, DJ Jarvis, MW David, DE Ellison, GB Nimlos, MR Davis, MF AF Mukarakate, Calvin Scheer, Adam M. Robichaud, David J. Jarvis, Mark W. David, Donald E. Ellison, G. Barney Nimlos, Mark R. Davis, Mark F. TI Laser ablation with resonance-enhanced multiphoton ionization time-of-flight mass spectrometry for determining aromatic lignin volatilization products from biomass SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article ID SINGLE-PHOTON IONIZATION; ELECTRON-IMPACT IONIZATION; NEUTRAL VANADIUM-OXIDE; COMPLEX GAS-MIXTURES; METAL CLUSTER BEAMS; ANALYTICAL PYROLYSIS; 2-PHOTON IONIZATION; MOLECULAR CHARACTERIZATION; THERMAL-DECOMPOSITION; SUPERSONIC JET AB We have designed and developed a laser ablation/pulsed sample introduction/mass spectrometry platform that integrates pyrolysis (py) and/or laser ablation (LA) with resonance-enhanced multiphoton ionization (REMPI) reflectron time-of-flight mass spectrometry (TOFMS). Using this apparatus, we measured lignin volatilization products of untreated biomass materials. Biomass vapors are produced by either a custom-built hot stage pyrolysis reactor or laser ablation using the third harmonic of an Nd:YAG laser (355 nm). The resulting vapors are entrained in a free jet expansion of He, then skimmed and introduced into an ionization region. One color resonance-enhanced multiphoton ionization (1+1 REMPI) is used, resulting in highly selective detection of lignin subunits from complex vapors of biomass materials. The spectra obtained by py-REMPI-TOFMS and LA-REMPI-TOFMS display high selectivity and decreased fragmentation compared to spectra recorded by an electron impact ionization molecular beam mass spectrometer (EI-MBMS). The laser ablation method demonstrates the ability to selectively isolate and volatilize specific tissues within the same plant material and then detect lignin-based products from the vapors with enhanced sensitivity. The identification of select products observed in the LA-REMPI-TOFMS experiment is confirmed by comparing their REMPI wavelength scans with that of known standards. c 2011 American Institute of Physics. [doi:10.1063/1.3563704] C1 [Mukarakate, Calvin; Scheer, Adam M.; Robichaud, David J.; Jarvis, Mark W.; Nimlos, Mark R.; Davis, Mark F.] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. [Scheer, Adam M.; Ellison, G. Barney] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA. [David, Donald E.] Univ Colorado, Integrated Instrument Dev Facil, CIRES, Boulder, CO 80309 USA. RP Mukarakate, C (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. EM calvin.mukarakate@nrel.gov OI davis, mark/0000-0003-4541-9852 FU National Renewable Energy Laboratory FX This work was supported by the Laboratory Directed Research and Development (LDRD) program and the Office of Biomass Program (OBP) at the National Renewable Energy Laboratory. The authors acknowledge Professor Eliot Bernstein (Colorado State University) and Professor Scott Reid (Marquette University) for motivating discussions. The authors would also like to thank Kristen Gracom, Robert Sykes, Angela Ziebell and Bryon Donahue for technical support. NR 55 TC 19 Z9 19 U1 2 U2 41 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0034-6748 EI 1089-7623 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD MAR PY 2011 VL 82 IS 3 AR 033104 DI 10.1063/1.3563704 PG 10 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA 745EV UT WOS:000289149600005 PM 21456715 ER PT J AU Brown, RS Eppard, MB Murchie, KJ Nielsen, JL Cooke, SJ AF Brown, Richard S. Eppard, M. Brad Murchie, Karen J. Nielsen, Jennifer L. Cooke, Steven J. TI An introduction to the practical and ethical perspectives on the need to advance and standardize the intracoelomic surgical implantation of electronic tags in fish SO REVIEWS IN FISH BIOLOGY AND FISHERIES LA English DT Editorial Material DE Surgery; Tagging; Transmitter; Telemetry ID TELEMETRY TRANSMITTERS; BIOTELEMETRY; RESEARCHERS; RETENTION; OPINIONS; BEHAVIOR; ECOLOGY; SALMON AB The intracoelomic surgical implantation of electronic tags (including radio and acoustic telemetry transmitters, passive integrated transponders and archival biologgers) is frequently used for conducting studies on fish. Electronic tagging studies provide information on the spatial ecology, behavior and survival of fish in marine and freshwater systems. However, any surgical procedure, particularly one where a laparotomy is performed and the coelomic cavity is opened, has the potential to alter the survival, behavior or condition of the animal which can impair welfare and introduce bias. Given that management, regulatory and conservation decisions are based on the assumption that fish implanted with electronic tags have similar fates and behavior relative to untagged conspecifics, it is critical to ensure that best surgical practices are being used. Also, the current lack of standardized surgical procedures and reporting of specific methodological details precludes cross-study and cross-year analyses which would further progress the field of fisheries science. This compilation of papers seeks to identify the best practices for the entire intracoelomic tagging procedure including pre- and post-operative care, anesthesia, wound closure, and use of antibiotics. Although there is a particular focus on salmonid smolts given the large body of literature available on that group, other life-stages and species of fish are discussed where there is sufficient knowledge. Additional papers explore the role of the veterinarian in fish surgeries, the need for minimal standards in the training of fish surgeons, providing a call for more complete and transparent procedures, and identifying trends in procedures and research needs. Collectively, this body of knowledge should help to improve data quality (including comparability and repeatability), enhance management and conservation strategies, and maintain the welfare status of tagged fish. C1 [Brown, Richard S.] Pacific NW Natl Lab, Ecol Grp, Richland, WA 99352 USA. [Eppard, M. Brad] US Army Corps Engineers, Portland, OR 97208 USA. [Murchie, Karen J.; Cooke, Steven J.] Carleton Univ, Dept Biol, Fish Ecol & Conservat Physiol Lab, Ottawa, ON K1S 5B6, Canada. [Murchie, Karen J.; Cooke, Steven J.] Carleton Univ, Inst Environm Sci, Ottawa, ON K1S 5B6, Canada. [Nielsen, Jennifer L.] US Geol Survey, Alaska Sci Ctr, Anchorage, AK 99508 USA. RP Brown, RS (reprint author), Pacific NW Natl Lab, Ecol Grp, 902 Battelle Blvd,POB 999,MSIN K6-85, Richland, WA 99352 USA. EM rich.brown@pnl.gov RI Cooke, Steven/F-4193-2010 OI Cooke, Steven/0000-0002-5407-0659 NR 34 TC 10 Z9 10 U1 2 U2 30 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0960-3166 EI 1573-5184 J9 REV FISH BIOL FISHER JI Rev. Fish. Biol. Fish. PD MAR PY 2011 VL 21 IS 1 SI SI BP 1 EP 9 DI 10.1007/s11160-010-9183-5 PG 9 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA 726WG UT WOS:000287756700001 ER PT J AU Cooke, SJ Wagner, GN Brown, RS Deters, KA AF Cooke, Steven J. Wagner, Glenn N. Brown, Richard S. Deters, Katherine A. TI Training considerations for the intracoelomic implantation of electronic tags in fish with a summary of common surgical errors SO REVIEWS IN FISH BIOLOGY AND FISHERIES LA English DT Article DE Biotelemetry; Biologging; Suturing; Training; Surgical error ID ADULT CHINOOK SALMON; TELEMETRY TRANSMITTERS; DELIBERATE PRACTICE; EXPERT PERFORMANCE; SURGEON EXPERIENCE; ECONOMIC OUTCOMES; SKILL; ACQUISITION; STEELHEAD; STUDENTS AB Training is a fundamental part of all scientific and technical disciplines. This is particularly true for all types of surgeons. For surgical procedures, a number of skills are necessary to reduce mistakes. Trainees must learn an extensive yet standardized set of problem-solving and technical skills to handle challenges as they arise. There are currently no guidelines or consistent training methods for those intending to implant electronic tags in fish; this is surprising, considering documented cases of negative consequences of fish surgeries and information from studies having empirically tested fish surgical techniques. Learning how to do fish surgery once is insufficient for ensuring the maintenance or improvement of surgical skill. Assessment of surgical skills is rarely incorporated into training, and is needed. Evaluation provides useful feedback that guides future learning, fosters habits of self-reflection and self-remediation, and promotes access to advanced training. Veterinary professionals should be involved in aspects of training to monitor basic surgical principles. We identified attributes related to knowledge, understanding, and skill that surgeons must demonstrate prior to performing fish surgery including a "hands-on" assessment using live fish. Included is a summary of common problems encountered by fish surgeons. We conclude by presenting core competencies that should be required as well as outlining a 3-day curriculum for training surgeons to conduct intracoelomic implantation of electronic tags. This curriculum could be offered through professional fisheries societies as professional development courses. C1 [Cooke, Steven J.] Carleton Univ, Dept Biol, Fish Ecol & Conservat Physiol Lab, Ottawa, ON K1S 5B6, Canada. [Wagner, Glenn N.] EDI Environm Dynam Inc, Vancouver, BC V6E 4A6, Canada. [Brown, Richard S.; Deters, Katherine A.] Pacific NW Natl Lab, Ecol Grp, Richland, WA 99352 USA. RP Cooke, SJ (reprint author), Carleton Univ, Dept Biol, Fish Ecol & Conservat Physiol Lab, 1125 Colonel Dr, Ottawa, ON K1S 5B6, Canada. EM steven_cooke@carleton.ca RI Cooke, Steven/F-4193-2010 OI Cooke, Steven/0000-0002-5407-0659 FU Portland District Army Corps of Engineers; Canada Research Chairs program FX We thank Brad Eppard and the Portland District Army Corps of Engineers for supporting this project. Cooke was also supported by the Canada Research Chairs program. We thank Chris Peery, Jennifer Panther, Brad Eppard and Christa Woodley for discussions regarding training and Caleb Hasler, Karen Murchie and Edd Brooks for providing comments on the manuscript. Andrea Currie kindly assisted with formatting the article. NR 47 TC 10 Z9 10 U1 1 U2 15 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0960-3166 J9 REV FISH BIOL FISHER JI Rev. Fish. Biol. Fish. PD MAR PY 2011 VL 21 IS 1 SI SI BP 11 EP 24 DI 10.1007/s11160-010-9184-4 PG 14 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA 726WG UT WOS:000287756700002 ER PT J AU Wagner, GN Cooke, SJ Brown, RS Deters, KA AF Wagner, Glenn N. Cooke, Steven J. Brown, Richard S. Deters, Katherine A. TI Surgical implantation techniques for electronic tags in fish SO REVIEWS IN FISH BIOLOGY AND FISHERIES LA English DT Article DE Telemetry; Surgery; Sterilization; Suture; Knot; Fish; Implantation ID JUVENILE CHINOOK SALMON; ATLANTIC SALMON; RAINBOW-TROUT; ACOUSTIC TRANSMITTERS; RADIO TRANSMITTERS; SUTURE TYPE; STRIPED BASS; TEMPERATURE; BEHAVIOR; GROWTH AB Intracoelomic implantation of transmitters into fish requires making a surgical incision, incision closure, and other surgery related techniques; however, the tools and techniques used in the surgical process vary widely. We review the available literature and focus on tools and techniques used for conducting surgery on juvenile salmonids because of the large amount of research that is conducted on them. The use of sterilized surgical instruments properly selected for a given size of fish will minimize tissue damage and infection rates, and speed the wound healing of fish implanted with transmitters. For the implantation of transmitters into small fish, the optimal surgical methods include making an incision on the ventral midline along the linea alba (for studies under 1 month), protecting the viscera (by lifting the skin with forceps while creating the incision), and using absorbable monofilament suture with a small-swaged-on swaged-on tapered or reverse-cutting needle. Standardizing the implantation techniques to be used in a study involving particular species and age classes of fish will improve survival and transmitter retention while allowing for comparisons to be made among studies and across multiple years. This review should be useful for researchers working on juvenile salmonids and other sizes and species of fish. C1 [Wagner, Glenn N.] Environm Dynam Inc, Vancouver, BC V6E 4G1, Canada. [Cooke, Steven J.] Carleton Univ, Dept Biol, Fish Ecol & Conservat Physiol Lab, Ottawa, ON K1S 5B6, Canada. [Brown, Richard S.; Deters, Katherine A.] Pacific NW Natl Lab, Ecol Grp, Richland, WA 99352 USA. RP Wagner, GN (reprint author), Environm Dynam Inc, Suite 640-1140,W Pender St, Vancouver, BC V6E 4G1, Canada. EM gwagner@edynamics.com RI Cooke, Steven/F-4193-2010 OI Cooke, Steven/0000-0002-5407-0659 FU US Army Corps of Engineers, Portland District FX This research was funded by the US Army Corps of Engineers, Portland District. With appreciation, we acknowledge the technical contributions of Brad Eppard, Andrea Currie, James Boyd, Andrea LeBarge, Greg Gaulke, Jennifer Panther, Christa Woodley and Kathleen Carter. NR 61 TC 32 Z9 35 U1 1 U2 26 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0960-3166 EI 1573-5184 J9 REV FISH BIOL FISHER JI Rev. Fish. Biol. Fish. PD MAR PY 2011 VL 21 IS 1 SI SI BP 71 EP 81 DI 10.1007/s11160-010-9191-5 PG 11 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA 726WG UT WOS:000287756700008 ER PT J AU Cooke, SJ Woodley, CM Eppard, MB Brown, RS Nielsen, JL AF Cooke, Steven J. Woodley, Christa M. Eppard, M. Brad Brown, Richard S. Nielsen, Jennifer L. TI Advancing the surgical implantation of electronic tags in fish: a gap analysis and research agenda based on a review of trends in intracoelomic tagging effects studies SO REVIEWS IN FISH BIOLOGY AND FISHERIES LA English DT Review DE Surgery; Biotelemetry; Behavior; Electronic tags ID JUVENILE CHINOOK SALMON; PASSIVE INTEGRATED TRANSPONDERS; IMPLANTING RADIO TRANSMITTERS; DUMMY ACOUSTIC TRANSMITTERS; ATLANTIC BLUEFIN TUNA; CARP CYPRINUS-CARPIO; HYBRID STRIPED BASS; LONG-TERM RETENTION; SWIMMING PERFORMANCE; RAINBOW-TROUT AB Early approaches to surgical implantation of electronic tags in fish were often through trial and error, however, in recent years there has been an interest in using scientific research to identify techniques and procedures that improve the outcome of surgical procedures and determine the effects of tagging on individuals. Here we summarize the trends in 108 peer-reviewed electronic tagging effect studies focused on intracoleomic implantation to determine opportunities for future research. To date, almost all of the studies have been conducted in freshwater, typically in laboratory environments, and have focused on biotelemetry devices. The majority of studies have focused on salmonids, cyprinids, ictalurids and centrarchids, with a regional bias towards North America, Europe and Australia. Most studies have focused on determining whether there is a negative effect of tagging relative to control fish, with proportionally fewer that have contrasted different aspects of the surgical procedure (e.g., methods of sterilization, incision location, wound closure material) that could advance the discipline. Many of these studies included routine endpoints such as mortality, growth, healing and tag retention, with fewer addressing sublethal measures such as swimming ability, predator avoidance, physiological costs, or fitness. Continued research is needed to further elevate the practice of electronic tag implantation in fish in order to ensure that the data generated are relevant to untagged conspecifics (i.e., no long-term behavioural or physiological consequences) and the surgical procedure does not impair the health and welfare status of the tagged fish. To that end, we advocate for (1) rigorous controlled manipulations based on statistical designs that have adequate power, account for inter-individual variation, and include controls and shams, (2) studies that transcend the laboratory and the field with more studies in marine waters, (3) incorporation of knowledge and techniques emerging from the medical and veterinary disciplines, (4) addressing all components of the surgical event, (5) comparative studies that evaluate the same surgical techniques on multiple species and in different environments, (6) consideration of how biotic factors (e.g., sex, age, size) influence tagging outcomes, and (7) studies that cover a range of endpoints over ecologically relevant time periods. C1 [Cooke, Steven J.] Carleton Univ, Dept Biol, Fish Ecol & Conservat Physiol Lab, Ottawa, ON K1S 5B6, Canada. [Cooke, Steven J.] Carleton Univ, Inst Environm Sci, Ottawa, ON K1S 5B6, Canada. [Woodley, Christa M.; Brown, Richard S.] Pacific NW Natl Lab, Ecol Grp, Richland, WA 99352 USA. [Eppard, M. Brad] US Army Corps Engineers, Portland Dist Off, Portland, OR USA. [Nielsen, Jennifer L.] US Geol Survey, Alaska Sci Ctr, Anchorage, AK 99508 USA. RP Cooke, SJ (reprint author), Carleton Univ, Dept Biol, Fish Ecol & Conservat Physiol Lab, 1125 Colonel Dr, Ottawa, ON K1S 5B6, Canada. EM Steven_Cooke@carleton.ca RI Cooke, Steven/F-4193-2010 OI Cooke, Steven/0000-0002-5407-0659 FU United States Army Corps of Engineers, Portland District under Pacific Northwest National Laboratory [DE-AC05-76RL01830] FX Cooke was supported by the United States Army Corps of Engineers, Portland District under contract from the Pacific Northwest National Laboratory (Contract # DE-AC05-76RL01830). Additional support was provided by Carleton University, the Canada Research Chairs Program, and the Ocean Telemetry Network Canada. Chris Holbrook, Karen Murchie and an anonymous referee kindly provided comments on the manuscript. Any reference to trade names does not indicate endorsement by the US Federal Government. NR 134 TC 71 Z9 73 U1 3 U2 53 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0960-3166 EI 1573-5184 J9 REV FISH BIOL FISHER JI Rev. Fish. Biol. Fish. PD MAR PY 2011 VL 21 IS 1 SI SI BP 127 EP 151 DI 10.1007/s11160-010-9193-3 PG 25 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA 726WG UT WOS:000287756700012 ER PT J AU Fabre, C Maurice, S Cousin, A Wiens, RC Forni, O Sautter, V Guillaume, D AF Fabre, C. Maurice, S. Cousin, A. Wiens, R. C. Forni, O. Sautter, V. Guillaume, D. TI Onboard calibration igneous targets for the Mars Science Laboratory Curiosity rover and the Chemistry Camera laser induced breakdown spectroscopy instrument SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article DE Mars; MSL Curiosity rover; ChemCam instrument; Standard LIBS ID PLIOCENE MACUSANI VOLCANICS; SE PERU; MINERALOGY; EVOLUTION; SUITE; ROCKS AB Accurate characterization of the Chemistry Camera (ChemCam) laser-induced breakdown spectroscopy (LIBS) on-board composition targets is of prime importance for the ChemCam instrument. The Mars Science Laboratory (MSL) science and operations teams expect ChemCam to provide the first compositional results at remote distances (1.5-7 m) during the in situ analyses of the Martian surface starting in 2012. Thus, establishing LIBS reference spectra from appropriate calibration standards must be undertaken diligently. Considering the global mineralogy of the Martian surface, and the possible landing sites, three specific compositions of igneous targets have been determined. Picritic, noritic, and shergottic glasses have been produced, along with a Macusanite natural glass. A sample of each target will fly on the MSL Curiosity rover deck, 1.56 m from the ChemCam instrument, and duplicates are available on the ground. Duplicates are considered to be identical, as the relative standard deviation (RSD) of the composition dispersion is around 8%. Electronic microprobe and laser ablation inductively coupled plasma mass spectrometry (LA ICP-MS) analyses give evidence that the chemical composition of the four silicate targets is very homogeneous at microscopic scales larger than the instrument spot size, with RSD <5% for concentration variations >0.1 wt.% using electronic microprobe, and <10% for concentration variations >0.01 wt.% using LA ICP-MS. The LIBS campaign on the igneous targets performed under flight-like Mars conditions establishes reference spectra for the entire mission. The LIBS spectra between 240 and 900 nm are extremely rich, hundreds of lines with high signal-to-noise, and a dynamical range sufficient to identify unambiguously major, minor and trace elements. For instance, a first LIBS calibration curve has been established for strontium from [Sr] = 284 ppm to [Sr] = 1480 ppm, showing the potential for the future calibrations for other major or minor elements. (C) 2011 Elsevier B.V. All rights reserved. C1 [Fabre, C.] Nancy Univ, G2R, Nancy, France. [Maurice, S.; Cousin, A.; Forni, O.] IRAP, Toulouse, France. [Wiens, R. C.] LANL, Los Alamos, NM USA. [Sautter, V.] MNHN, Paris, France. [Guillaume, D.] GET, Toulouse, France. RP Fabre, C (reprint author), Nancy Univ, G2R, Nancy, France. EM cecile.fabre@g2r.uhp-nancy.fr RI Cecile, FABRE/B-5827-2012; Guillaume, Damien/D-9803-2012; Maurice, Sylvestre/B-3575-2015; OI Guillaume, Damien/0000-0001-5232-8380; Forni, Olivier/0000-0001-6772-9689 NR 35 TC 37 Z9 37 U1 3 U2 19 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PD MAR-APR PY 2011 VL 66 IS 3-4 BP 280 EP 289 DI 10.1016/j.sab.2011.03.012 PG 10 WC Spectroscopy SC Spectroscopy GA 787FI UT WOS:000292361600010 ER PT J AU Senanayake, SD Evans, J Agnoli, S Barrio, L Chen, TL Hrbek, J Rodriguez, JA AF Senanayake, Sanjaya D. Evans, Jaime Agnoli, Stefano Barrio, Laura Chen, Tsung-Liang Hrbek, Jan Rodriguez, Jose A. TI Water-Gas Shift and CO Methanation Reactions over Ni-CeO2(111) Catalysts SO TOPICS IN CATALYSIS LA English DT Article; Proceedings Paper CT 5th San Luis Conference on Surfaces, Interfaces and Catalysis CY APR 09-19, 2010 CL Pan Amer Adv Stud Inst, Sao Pedro, BRAZIL HO Pan Amer Adv Stud Inst DE Nickel; Ceria; Carbon monoxide; CO methanation; Water; Water-gas shift reaction ID OXIDE THIN-FILMS; MIXED-METAL OXIDE; NANOMETER LEVEL; IN-SITU; SURFACES; CERIA; XPS; NI; HYDROGENATION; MECHANISM AB X-ray and ultraviolet photoelectron spectroscopies were used to study the interaction of Ni atoms with CeO2(111) surfaces. Upon adsorption on CeO2(111) at 300 K, nickel remains in a metallic state. Heating to elevated temperatures (500-800 K) leads to partial reduction of the ceria substrate with the formation of Ni2+ species that exists as NiO and/or Ce1-xNixO2-y. Interactions of nickel with the oxide substrate significantly reduce the density of occupied Ni 3d states near the Fermi level. The results of core-level photoemission and near-edge X-ray absorption fine structure point to weakly bound CO species on CeO2(111) which are clearly distinguishable from the formation of chemisorbed carbonates. In the presence of Ni, a stronger interaction is observed with chemisorption of CO on the admetal. When the Ni is in contact with Ce+3 cations, CO dissociates on the surface at 300 K forming NiCx compounds that may be involved in the formation of CH4 at higher temperatures. At medium and large Ni coverages (> 0.3 ML), the Ni/CeO2(111) surfaces are able to catalyze the production of methane from CO and H-2, with an activity slightly higher than that of Ni(100) or Ni(111). On the other hand, at small coverages of Ni (< 0.3 ML), the Ni/CeO2(111) surfaces exhibit a very low activity for CO methanation but are very good catalysts for the water-gas shift reaction. C1 [Senanayake, Sanjaya D.; Agnoli, Stefano; Barrio, Laura; Hrbek, Jan; Rodriguez, Jose A.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Evans, Jaime] Cent Univ Venezuela, Fac Ciencias, Caracas 1020A, Venezuela. [Chen, Tsung-Liang] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Rodriguez, JA (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM rodrigez@bnl.gov RI Barrio, Laura/A-9509-2008; Hrbek, Jan/I-1020-2013; Senanayake, Sanjaya/D-4769-2009 OI Barrio, Laura/0000-0003-3496-4329; Senanayake, Sanjaya/0000-0003-3991-4232 NR 39 TC 52 Z9 53 U1 11 U2 111 PU SPRINGER/PLENUM PUBLISHERS PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1022-5528 J9 TOP CATAL JI Top. Catal. PD MAR PY 2011 VL 54 IS 1-4 BP 34 EP 41 DI 10.1007/s11244-011-9645-6 PG 8 WC Chemistry, Applied; Chemistry, Physical SC Chemistry GA 723GZ UT WOS:000287496100006 ER PT J AU Teeguarden, JG Webb-Robertson, BJ Waters, KM Murray, AR Kisin, ER Varnum, SM Jacobs, JM Pounds, JG Zanger, RC Shvedova, AA AF Teeguarden, Justin G. Webb-Robertson, Bobbie-Jo Waters, Katrina M. Murray, Ashley R. Kisin, Elena R. Varnum, Susan M. Jacobs, Jon M. Pounds, Joel G. Zanger, Richard C. Shvedova, Anna A. TI Comparative Proteomics and Pulmonary Toxicity of Instilled Single-Walled Carbon Nanotubes, Crocidolite Asbestos, and Ultrafine Carbon Black in Mice SO TOXICOLOGICAL SCIENCES LA English DT Article DE nanomaterials; risk assessment; proteomics; asbestos; SWCNT ID BRONCHOALVEOLAR LAVAGE FLUID; DIESEL EXHAUST PARTICLES; FTICR MASS-SPECTROMETRY; ACCURATE MASS; C57BL/6 MICE; BETA(2) INTEGRINS; OXIDATIVE STRESS; MOUSE MODEL; EXPRESSION; EXPOSURE AB Reflecting their exceptional potential to advance a range of biomedical, aeronautic, and other industrial products, carbon nanotube (CNT) production and the potential for human exposure to aerosolized CNTs are increasing. CNTs have toxicologically significant structural and chemical similarities to asbestos (AB) and have repeatedly been shown to cause pulmonary inflammation, granuloma formation, and fibrosis after inhalation/instillation/aspiration exposure in rodents, a pattern of effects similar to those observed following exposure to AB. To determine the degree to which responses to single-walled CNTs (SWCNT) and AB are similar or different, the pulmonary response of C57BL/6 mice to repeated exposures to SWCNTs, crocidolite AB, and ultrafine carbon black (UFCB) were compared using high-throughput global high performance liquid chromatography fourier transform ion cyclotron resonance mass spectrometry (HPLC-FTICR-MS) proteomics, histopathology, and bronchoalveolar lavage cytokine analyses. Mice were exposed to material suspensions (40 micrograms per mouse) twice a week for 3 weeks by pharyngeal aspiration. Histologically, the incidence and severity of inflammatory and fibrotic responses were greatest in mice treated with SWCNTs. SWCNT treatment affected the greatest changes in abundance of identified lung tissue proteins. The trend in number of proteins affected (SWCNT [376] > AB [231] > UFCB [184]) followed the potency of these materials in three biochemical assays of inflammation (cytokines). SWCNT treatment uniquely affected the abundance of 109 proteins, but these proteins largely represent cellular processes affected by AB treatment as well, further evidence of broad similarity in the tissue-level response to AB and SWCNTs. Two high-sensitivity markers of inflammation, one (S100a9) observed in humans exposed to AB, were found and may be promising biomarkers of human response to SWCNT exposure. C1 [Teeguarden, Justin G.; Webb-Robertson, Bobbie-Jo; Waters, Katrina M.; Varnum, Susan M.; Jacobs, Jon M.; Pounds, Joel G.; Zanger, Richard C.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Murray, Ashley R.; Kisin, Elena R.; Shvedova, Anna A.] NIOSH, Morgantown, WV 26505 USA. RP Teeguarden, JG (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA. EM justin.teeguarden@pnl.gov OI Teeguarden, Justin/0000-0003-3817-4391; Pounds, Joel/0000-0002-6616-1566 FU U.S. Department of Energy through the Environmental Biomarkers Initiative at Pacific Northwest National Laboratory (PNNL); DOE [DE-AC05-76RLO 1830]; NIOSH [OH008282]; National Occupational Research Agenda (NORA) [927ZJHF]; National Institutes of Health (NIH); European Commission [EC-FP7- NANOMUNE] FX This research was collaboration between the Pacific Northwest National Laboratory and the National Institute of Occupational Safety and Health. Portions of this work were funded by the U.S. Department of Energy through the Environmental Biomarkers Initiative at Pacific Northwest National Laboratory (PNNL). Some of the experimental work was performed in the Environmental Molecular Sciences Laboratory, a U.S. Department of Energy, Office of Biological and Environmental Research national scientific user facility on the PNNL campus. PNNL is multi-program national laboratory operated by Battelle for the DOE under Contract No. DE-AC05-76RLO 1830. Also supported by NIOSH (Grant No. OH008282), National Occupational Research Agenda (NORA) (Grant No. 927ZJHF), National Institutes of Health (NIH), and the 7th Framework Programme of the European Commission (EC-FP7- NANOMUNE). NR 54 TC 53 Z9 56 U1 2 U2 25 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 1096-6080 J9 TOXICOL SCI JI Toxicol. Sci. PD MAR PY 2011 VL 120 IS 1 BP 123 EP 135 DI 10.1093/toxsci/kfq363 PG 13 WC Toxicology SC Toxicology GA 726SZ UT WOS:000287747800011 PM 21135415 ER PT J AU Hauck, CD AF Hauck, Cory D. TI HIGH-ORDER ENTROPY-BASED CLOSURES FOR LINEAR TRANSPORT IN SLAB GEOMETRY SO COMMUNICATIONS IN MATHEMATICAL SCIENCES LA English DT Article DE Particle transport; maximum entropy; moment closures ID HYPERBOLIC CONSERVATION-LAWS; MAXIMUM-ENTROPY; MOMENT CLOSURE; BOUNDARY-CONDITIONS; ASYMPTOTIC LIMIT; STIFF RELAXATION; PLANAR GEOMETRY; PN THEORY; SCHEMES; EQUATION AB We compute high-order entropy-based (M-N) models for a linear transport equation on a one-dimensional slab geometry. We simulate two test problems from the literature :the two-beam instability and the plane-source problem. In the former case, we compute solutions for systems upto order N=6; in the latter,up to N = 15. The most notable out come of these results is the existence of shocks in the steady-state profiles of the two-beam instability for all odd values of N. C1 Oak Ridge Natl Lab, Comp Sci & Math Div, Computat Math Grp, Oak Ridge, TN 37831 USA. RP Hauck, CD (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Computat Math Grp, Oak Ridge, TN 37831 USA. EM hauckc@ornl.gov NR 42 TC 21 Z9 22 U1 0 U2 0 PU INT PRESS BOSTON, INC PI SOMERVILLE PA PO BOX 43502, SOMERVILLE, MA 02143 USA SN 1539-6746 J9 COMMUN MATH SCI JI Commun. Math. Sci. PD MAR PY 2011 VL 9 IS 1 BP 187 EP 205 PG 19 WC Mathematics, Applied SC Mathematics GA 677JD UT WOS:000283985900009 ER PT J AU Dani, KM Ku, ZH Upadhya, PC Prasankumar, RP Taylor, AJ Brueck, SRJ AF Dani, Keshav M. Ku, Zahyun Upadhya, Prashanth C. Prasankumar, Rohit P. Taylor, Antoinette J. Brueck, S. R. J. TI Ultrafast nonlinear optical spectroscopy of a dual-band negative index metamaterial all-optical switching device SO OPTICS EXPRESS LA English DT Article ID AMORPHOUS-SILICON; RECOMBINATION; CLOAK AB We study the nonlinear optical response of a fishnet structure-metamaterial all-optical switching device that exhibits two near-infrared negative-index resonances. We study and compare the nonlinear optical response at both resonances and identify transient spectral features associated with the negative index resonance. We see a significantly stronger response at the longer wavelength resonance, but identical temporal dynamics at both resonances, providing insight into separately engineering the switching time and switching ratio of such a fishnet structure metamaterial all-optical switch. We also numerically reproduce the nonlinear behavior of our device using the Drude conductivity model and a finite integration technique over wide spectral and pump fluence ranges. Thereby, we show that beyond the linear properties of the device, the magnitude of the pump-probe response is completely described by only two material parameters. These results provide insight into engineering various aspects of the nonlinear response of fishnet structure metamaterials. (C) 2011 Optical Society of America C1 [Dani, Keshav M.; Upadhya, Prashanth C.; Prasankumar, Rohit P.; Taylor, Antoinette J.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Ku, Zahyun; Brueck, S. R. J.] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA. [Ku, Zahyun; Brueck, S. R. J.] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87106 USA. RP Dani, KM (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA. EM brueck@chtm.unm.edu RI Brueck, Steven/A-6383-2013; Dani, Keshav/B-7490-2015; OI Dani, Keshav/0000-0003-3917-6305; Brueck, Steven/0000-0001-8754-5633 FU Defense Advanced Research Projects Agency (DARPA); National Nuclear Security Administration of the U.S. Department of Energy [DE-AC52-06NA25396] FX The UNM portion of this work was supported by the Defense Advanced Research Projects Agency (DARPA) under the University Photonics Research Center program. The LANL portion of this work was performed at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility and also partially supported by the LANL's Laboratory Directed Research and Development Program. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under Contract No. DE-AC52-06NA25396. NR 33 TC 23 Z9 24 U1 1 U2 22 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD FEB 28 PY 2011 VL 19 IS 5 BP 3973 EP 3983 DI 10.1364/OE.19.003973 PG 11 WC Optics SC Optics GA 741NL UT WOS:000288870300017 PM 21369223 ER PT J AU Fisher, BT Hahn, DW AF Fisher, Brian T. Hahn, David W. TI Real-time measurement of ArF excimer laser corneal tissue ablation rates using cross-correlation of laser waveforms SO OPTICS EXPRESS LA English DT Article ID IN-SITU KERATOMILEUSIS; REFRACTIVE SURGERY; LIGHT; HYDRATION; COLLAGEN; MYOPIA; MODEL; LASIK AB The current popularity of excimer laser refractive surgery suggests a need for continued research and refinements to further improve clinical outcomes. A fundamental limitation of current clinical systems is the lack of real-time feedback specifically addressing the laser-tissue interactions as directly related to laser ablation rates. This paper reports data to assess the feasibility of a novel approach that holds promise as a real-time feedback scheme based on comparison of the incident and reflected laser pulse waveforms, as quantified using a cross-correlation algorithm. The approach is evaluated for ablation of bovine cornea over a range of clinically relevant laser fluences. A linear relationship was observed between several cross-correlation metrics and the directly measured corneal ablation rate, yielding an average RMS predictive error of 3.9% using a 25-shot average reflected waveform. Assessment of the cross-correlation approach for single-shot ablation data revealed a brief transient corresponding to the first few laser pulses, which is attributed to a slight hydration gradient near the surface of the de-epithelialized cornea. Clinical refractive data are necessary to assess the precision of this approach for actual refractive surgery. (C) 2011 Optical Society of America C1 [Fisher, Brian T.; Hahn, David W.] Univ Florida, Dept Mech & Aerosp Engn, Gainesville, FL 32611 USA. RP Fisher, BT (reprint author), Sandia Natl Labs, POB 969,MS9053, Livermore, CA 94551 USA. EM btfishe@sandia.gov FU Alcon Research, Ltd. FX This work was supported in part by a grant from Alcon Research, Ltd. The views and opinions expressed in this article are those of the authors. NR 26 TC 0 Z9 0 U1 1 U2 9 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD FEB 28 PY 2011 VL 19 IS 5 BP 4231 EP 4241 DI 10.1364/OE.19.004231 PG 11 WC Optics SC Optics GA 741NL UT WOS:000288870300046 PM 21369253 ER PT J AU Kang, TD Standard, E Carr, GL Zhou, T Kotelyanskii, M Sirenko, AA AF Kang, T. D. Standard, E. Carr, G. L. Zhou, T. Kotelyanskii, M. Sirenko, A. A. TI Rotatable broadband retarders for far-infrared spectroscopic ellipsometry SO THIN SOLID FILMS LA English DT Article; Proceedings Paper CT 5th International Conference on Spectroscopic Ellipsometry CY MAY 23-29, 2010 CL Univ Albany, Coll Nanoscale & Engn, Albany, NY HO Univ Albany, Coll Nanoscale & Engn DE Far-infrared retarder; Spectroscopic ellipsometry; Rotatable retarder; Total internal reflection; TOPAS; Double-Fresnel rhomb ID POLARIZER AB Rotatable retarders have been developed for applications in spectroscopic, full Mueller Matrix ellipsometry in the far-IR spectral range. Several materials, such as silicon. KRS-5. and a commercial polymer plastic (TOPAS) have been utilized to achieve a fully adjustable retardation between 0 degrees and 90 degrees. Experimental characteristics of the rotatable retarders that utilize three- and four-bounce designs are compared with calculations. We discuss the effect of light focusing on the performance of these rotatable retarders. (C) 2010 Elsevier B.V. All rights reserved. C1 [Kang, T. D.; Standard, E.; Zhou, T.; Kotelyanskii, M.; Sirenko, A. A.] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA. [Carr, G. L.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Kotelyanskii, M.] Rudolph Technol Inc, Flanders, NJ 07836 USA. RP Kang, TD (reprint author), New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA. EM tdkang@njit.edu NR 10 TC 5 Z9 5 U1 0 U2 4 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0040-6090 J9 THIN SOLID FILMS JI Thin Solid Films PD FEB 28 PY 2011 VL 519 IS 9 SI SI BP 2698 EP 2702 DI 10.1016/j.tsf.2010.12.057 PG 5 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA 745OG UT WOS:000289174200028 ER PT J AU Lancaster, WA Praissman, JL Poole, FL Cvetkovic, A Menon, AL Scott, JW Jenney, FE Thorgersen, MP Kalisiak, E Apon, JV Trauger, SA Siuzdak, G Tainer, JA Adams, MWW AF Lancaster, W. Andrew Praissman, Jeremy L. Poole, Farris L., II Cvetkovic, Aleksandar Menon, Angeli Lal Scott, Joseph W. Jenney, Francis E., Jr. Thorgersen, Michael P. Kalisiak, Ewa Apon, Junefredo V. Trauger, Sunia A. Siuzdak, Gary Tainer, John A. Adams, Michael W. W. TI A Computational Framework for Proteome-Wide Pursuit and Prediction of Metalloproteins using ICP-MS and MS/MS Data SO BMC BIOINFORMATICS LA English DT Article ID PYROCOCCUS-FURIOSUS; CRYSTAL-STRUCTURE; METAL; MOLYBDENUM; ENZYMES; BINDING; PROTEINS AB Background: Metal-containing proteins comprise a diverse and sizable category within the proteomes of organisms, ranging from proteins that use metals to catalyze reactions to proteins in which metals play key structural roles. Unfortunately, reliably predicting that a protein will contain a specific metal from its amino acid sequence is not currently possible. We recently developed a generally-applicable experimental technique for finding metalloproteins on a genome-wide scale. Applying this metal-directed protein purification approach (ICP-MS and MS/MS based) to the prototypical microbe Pyrococcus furiosus conclusively demonstrated the extent and diversity of the uncharacterized portion of microbial metalloproteomes since a majority of the observed metal peaks could not be assigned to known or predicted metalloproteins. However, even using this technique, it is not technically feasible to purify to homogeneity all metalloproteins in an organism. In order to address these limitations and complement the metal-directed protein purification, we developed a computational infrastructure and statistical methodology to aid in the pursuit and identification of novel metalloproteins. Results: We demonstrate that our methodology enables predictions of metal-protein interactions using an experimental data set derived from a chromatography fractionation experiment in which 870 proteins and 10 metals were measured over 2,589 fractions. For each of the 10 metals, cobalt, iron, manganese, molybdenum, nickel, lead, tungsten, uranium, vanadium, and zinc, clusters of proteins frequently occurring in metal peaks (of a specific metal) within the fractionation space were defined. This resulted in predictions that there are from 5 undiscovered vanadium-to 13 undiscovered cobalt-containing proteins in Pyrococcus furiosus. Molybdenum and nickel were chosen for additional assessment producing lists of genes predicted to encode metalloproteins or metalloprotein subunits, 22 for nickel including seven from known nickel-proteins, and 20 for molybdenum including two from known molybdo-proteins. The uncharacterized proteins are prime candidates for metal-based purification or recombinant approaches to validate these predictions. Conclusions: We conclude that the largely uncharacterized extent of native metalloproteomes can be revealed through analysis of the co-occurrence of metals and proteins across a fractionation space. This can significantly impact our understanding of metallobiochemistry, disease mechanisms, and metal toxicity, with implications for bioremediation, medicine and other fields. C1 [Lancaster, W. Andrew; Praissman, Jeremy L.; Poole, Farris L., II; Cvetkovic, Aleksandar; Menon, Angeli Lal; Scott, Joseph W.; Jenney, Francis E., Jr.; Thorgersen, Michael P.; Adams, Michael W. W.] Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA. [Jenney, Francis E., Jr.] Philadelphia Coll Osteopath Med, Suwanee, GA 30024 USA. [Kalisiak, Ewa; Apon, Junefredo V.; Trauger, Sunia A.; Siuzdak, Gary] Scripps Res Inst, Scripps Ctr Mass Spectrometry, La Jolla, CA 92037 USA. [Kalisiak, Ewa; Apon, Junefredo V.; Trauger, Sunia A.; Siuzdak, Gary] Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA. [Kalisiak, Ewa; Apon, Junefredo V.; Trauger, Sunia A.; Siuzdak, Gary] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA. [Tainer, John A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Adams, MWW (reprint author), Univ Georgia, Dept Biochem & Mol Biol, Athens, GA 30602 USA. EM adams@bmb.uga.edu FU Office of Science, Office of Biological and Environmental Research, of the U. S. Department of Energy [DE-AC02-05CH11231] FX This work conducted by ENIGMA was supported by the Office of Science, Office of Biological and Environmental Research, of the U. S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 32 TC 10 Z9 10 U1 3 U2 21 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2105 J9 BMC BIOINFORMATICS JI BMC Bioinformatics PD FEB 28 PY 2011 VL 12 AR 64 DI 10.1186/1471-2105-12-64 PG 12 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Mathematical & Computational Biology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Mathematical & Computational Biology GA 734WS UT WOS:000288372900001 PM 21356119 ER PT J AU Shen, X Zhao, L Ding, YZ Liu, B Zeng, H Zhong, LR Li, XQ AF Shen, Xin Zhao, Lin Ding, Yuanzhao Liu, Bo Zeng, Hui Zhong, Lirong Li, Xiqing TI Foam, a promising vehicle to deliver nanoparticles for vadose zone remediation SO JOURNAL OF HAZARDOUS MATERIALS LA English DT Article DE Foam; Delivery vehicle; Nanoparticles; Remediation ID ZERO-VALENT IRON; CONTAMINATED SOIL; SURFACTANT FOAM; POROUS-MEDIA; RHAMNOLIPID FOAM; PARTICLES; GROUNDWATER; CR(VI); TCE; DECHLORINATION AB Foam delivery of remedial amendments for in situ immobilization of deep vadose zone contaminants can overcome the intrinsic problems associated with solution-based delivery, such as preferential flow and contaminant mobilization. In this work, the feasibility of using foam to deliver nanoparticles in unsaturated porous media was investigated. Carboxyl-modified polystyrene latex microspheres were used as surrogates for nanoparticles of remediation purposes. Foams generated from the solutions of six commonly available surfactants all had excellent abilities to carry the microspheres. The presence of the microspheres did not reduce the stabilities of the foams. When microsphere-laden foam was injected through the unsaturated columns, the fractions of microspheres exiting the column were much higher than that when the microsphere water suspensions were injected through the columns. The enhanced microsphere transport implies that foam delivery could significantly increase the radius of influence of injected nanoparticles of remediation purposes. Reduced tension at air-water interfaces by the surfactant and increased driving forces imparted on the microspheres at the interfaces by the flowing foam bubbles may have both contributed to the enhanced transport. Preliminary tests also demonstrated that foam can carry significant fractions of zero valent iron nanoparticles at concentrations relevant to field remediation conditions (up to 5.3 g L(-1)). As such, this study demonstrates that surfactant foam is potentially a promising vehicle to deliver nanoparticles for vadose zone remediation. (C) 2010 Elsevier B.V. All rights reserved. C1 [Shen, Xin; Liu, Bo; Li, Xiqing] Peking Univ, Lab Earth Surface Proc, Coll Urban & Environm Sci, Beijing 100871, Peoples R China. [Zhao, Lin; Ding, Yuanzhao] Peking Univ, Dept Energy & Resources Engn, Coll Engn, Beijing 100871, Peoples R China. [Zeng, Hui; Li, Xiqing] Peking Univ, Shenzhen Key Lab Circular Econ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China. [Zhong, Lirong] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. RP Li, XQ (reprint author), Peking Univ, Lab Earth Surface Proc, Coll Urban & Environm Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. EM lirong.zhong@pnl.gov; xli@urban.pku.edu.cn FU Ministry of Science and Technology of China [2009AA063102]; Shenzhen Bureau of Science Information [SY200806300176A]; U.S. DOE [DE-AC06-76RLO 1830] FX This material is based on work funded by the National High-Tech Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2009AA063102) and the Shenzhen Bureau of Science & Information (Grant No. SY200806300176A). The authors wish to thank Mr. Zenghui Zhang at the Department of Chemical Engineering of the Louisiana State University for his assistance in the column experiments. The Pacific Northwest National Laboratory (PNNL) is operated by Battelle for the U.S. DOE under Contract DE-AC06-76RLO 1830. NR 42 TC 12 Z9 17 U1 3 U2 18 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 FEB 28 PY 2011 VL 186 IS 2-3 BP 1773 EP 1780 DI 10.1016/j.jhazmat.2010.12.071 PG 8 WC Engineering, Environmental; Engineering, Civil; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 734OK UT WOS:000288344000106 PM 21227581 ER PT J AU Ryu, HJ Kim, YS Yacout, AM AF Ryu, Ho Jin Kim, Yeon Soo Yacout, A. M. TI Thermal creep modeling of HT9 steel for fast reactor applications SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID DESIGN EQUATIONS; DEFORMATION AB The ferritic martensitic steel HT9 is a primary candidate material for the fuel cladding of liquid-metal-cooled fast reactors (LMFRs) owing to its excellent stability under irradiation. Thermal creep of fuel cladding is a potential life-limiting factor in the long-life fuel design of LMFRs. Using the measured data available in the literature, such as creep strain data, stress rupture data, and steady-state creep rate data, a generalized creep correlation was developed. The new correlation is based on the Garofalo equation and the modified Monkman-Grant equation, and it shows better agreement with the experimental data than existing correlations that use either the theta projection method or the minimum commitment method, making it more appropriate for use in long-life applications. (C) 2010 Elsevier B.V. All rights reserved. C1 [Ryu, Ho Jin] Korea Atom Energy Res Inst, Recycled Fuel Dev Div, Taejon 305353, South Korea. [Kim, Yeon Soo; Yacout, A. M.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA. RP Ryu, HJ (reprint author), Korea Atom Energy Res Inst, Recycled Fuel Dev Div, 150 Deokjin Dong, Taejon 305353, South Korea. EM hjryu@kaeri.re.kr RI RYU, HO JIN/J-2764-2013 OI RYU, HO JIN/0000-0002-3387-7381 FU Ministry of Education Science and Technology (MEST) of Korea; UChicago Argonne, LCC [DE-AC-02-06CH11357] FX This study was supported in part by Ministry of Education Science and Technology (MEST) of Korea, and in part by the UChicago Argonne, LCC as Operator of Argonne National Laboratory under Contract No. DE-AC-02-06CH11357 between the UChicago Argonne, LLC and the US Department of Energy. NR 18 TC 3 Z9 3 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD FEB 28 PY 2011 VL 409 IS 3 BP 207 EP 213 DI 10.1016/j.jnucmat.2010.12.232 PG 7 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 736GZ UT WOS:000288480300006 ER PT J AU Chopra, OK Rao, AS AF Chopra, O. K. Rao, A. S. TI A review of irradiation effects on LWR core internal materials - IASCC susceptibility and crack growth rates of austenitic stainless steels SO JOURNAL OF NUCLEAR MATERIALS LA English DT Review ID MICROSTRUCTURAL EVOLUTION; PROPAGATION; WATER AB Austenitic stainless steels (SSs) are used extensively as structural alloys in the internal components of light water reactor (LWR) pressure vessels because of their relatively high strength, ductility, and fracture toughness. However, exposure to neutron irradiation for extended periods changes the microstructure (radiation hardening) and microchemistry (radiation-induced segregation) of these steels, and degrades their fracture properties. Irradiation-assisted stress corrosion cracking (IASCC) is another degradation process that affects LWR internal components exposed to neutron radiation. The existing data on irradiated austenitic SSs were reviewed to evaluate the effects of key parameters such as material composition, irradiation dose, and water chemistry on IASCC susceptibility and crack growth rates of these materials in LWR environments. The significance of microstructural and microchemistry changes in the material on IASCC susceptibility is also discussed. The results are used to determine (a) the threshold fluence for IASCC and (b) the disposition curves for cyclic and IASCC growth rates for irradiated SSs in LWR environments. (C) 2010 Elsevier B.V. All rights reserved. C1 [Chopra, O. K.] Argonne Natl Lab, Div Environm Sci, Argonne, IL 60439 USA. [Rao, A. S.] US Nucl Regulatory Commiss, Div Engn, Washington, DC 20555 USA. RP Chopra, OK (reprint author), Argonne Natl Lab, Div Environm Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM okc@anl.gov FU Office of Nuclear Regulatory Research, US Nuclear Regulatory Commission [N6818] FX The authors thank Torill Karlsen, OECD Halden Reactor Project, Halden, Norway; Anders Jenssen, Studsvik Nuclear AB, Sweden; and Raj Pathania, Electric Power Research Institute, for providing the experimental data and for their helpful comments. The authors are grateful to Bill Shack for his invaluable input and guidance in preparing this report. This work is sponsored by the Office of Nuclear Regulatory Research, US Nuclear Regulatory Commission, under Job Code N6818; Program Manager: Appajosula S. Rao. NR 68 TC 26 Z9 32 U1 7 U2 48 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD FEB 28 PY 2011 VL 409 IS 3 BP 235 EP 256 DI 10.1016/j.jnucmat.2010.12.001 PG 22 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 736GZ UT WOS:000288480300010 ER PT J AU Ji, NA Allard, LF Lara-Curzio, E Wang, JP AF Ji, Nian Allard, Lawrence F. Lara-Curzio, Edgar Wang, Jian-Ping TI N site ordering effect on partially ordered Fe16N2 SO APPLIED PHYSICS LETTERS LA English DT Article ID MAGNETIC-MOMENT; FILMS AB Partially ordered Fe16N2 thin films have been fabricated on Fe (001)-buffered GaAs (001) single-crystal substrates by a facing target sputtering process. The saturation magnetization has been systematically investigated as a function of N site ordering in partially ordered Fe16N2 thin films, which is found to be increased monotonically with the increase in the N site ordering parameter, reaching up to 2.68 T at high ordering case. A model discussion is provided based on the partial localization of 3d electron states in this material system, which successfully rationalizes the formation of the giant saturation magnetization in chemically ordered Fe16N2. We further demonstrate that the average magnetic moment of partially ordered Fe16N2 sensitively depends on the special arrangement of Fe6N clusters, which is the key to realize high magnetic moment in this material system. (C) 2011 American Institute of Physics. [doi:10.1063/1.3560051] C1 [Ji, Nian; Wang, Jian-Ping] Univ Minnesota, Dept Elect & Comp Engn, Ctr Micromagnet & Informat Technol MINT, Minneapolis, MN 55455 USA. [Allard, Lawrence F.; Lara-Curzio, Edgar] Oak Ridge Natl Lab, High Temp Mat Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Ji, NA (reprint author), Univ Minnesota, Dept Elect & Comp Engn, Ctr Micromagnet & Informat Technol MINT, 200 Union St SE,4-174 EE CSci, Minneapolis, MN 55455 USA. EM jpwang@umn.edu RI Ji, Nian/J-9915-2012 FU DOE, Office of Basic Energy Sciences [DE-AC02-98CH10886]; NNIN; NSF; DOE, Office of Energy Efficiency and Renewable Energy FX The work was partially supported by DOE, Office of Basic Energy Sciences under Contract No. DE-AC02-98CH10886, NSF MRSEC, and NNIN. Parts of this work were carried out in Characterization Facility, University of Minnesota, which receives partial support from NSF through the MRSEC program. Microscopy research at HTML at ORNL was sponsored by the DOE, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Program. NR 10 TC 31 Z9 31 U1 1 U2 48 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 28 PY 2011 VL 98 IS 9 AR 092506 DI 10.1063/1.3560051 PG 3 WC Physics, Applied SC Physics GA 730IJ UT WOS:000288026700048 ER PT J AU Kronawitter, CX Mao, SS Antoun, BR AF Kronawitter, Coleman X. Mao, Samuel S. Antoun, Bonnie R. TI Doped, porous iron oxide films and their optical functions and anodic photocurrents for solar water splitting SO APPLIED PHYSICS LETTERS LA English DT Article ID THIN-FILMS; HYDROGEN-PRODUCTION; ELECTRON-TRANSPORT; ANGLE DEPOSITION; NANOROD ARRAYS; OXIDATION AB The fabrication and morphological, optical, and photoelectrochemical characterization of doped iron oxide films is presented. The complex index of refraction and absorption coefficient of polycrystalline films are determined through measurement and modeling of spectral transmission and reflection data using appropriate dispersion relations. Photoelectrochemical characterization for water photo-oxidation reveals that the conversion efficiencies of electrodes are strongly influenced by substrate temperature during their oblique-angle physical vapor deposition. These results are discussed in terms of the films' morphological features and the known optoelectronic limitations of iron oxide films for application in solar water splitting devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3552711] C1 [Kronawitter, Coleman X.; Mao, Samuel S.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. [Kronawitter, Coleman X.; Mao, Samuel S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. [Antoun, Bonnie R.] Sandia Natl Labs, Livermore, CA 94551 USA. RP Kronawitter, CX (reprint author), Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. EM ssmao@lbl.gov FU Sandia National Laboratories; United States Department of Energy [DE-ACO4-94AL85000] FX This work was supported by Sandia National Laboratories. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the United States Department of Energy under Contract No. DE-ACO4-94AL85000. NR 20 TC 16 Z9 16 U1 0 U2 14 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 28 PY 2011 VL 98 IS 9 AR 092108 DI 10.1063/1.3552711 PG 3 WC Physics, Applied SC Physics GA 730IJ UT WOS:000288026700036 ER PT J AU Zhang, W Bowden, ME Krishnan, KM AF Zhang, Wei Bowden, Mark E. Krishnan, Kannan M. TI Competing effects of magnetocrystalline anisotropy and exchange bias in epitaxial Fe/IrMn bilayers SO APPLIED PHYSICS LETTERS LA English DT Article ID MAGNETIC-ANISOTROPY; NANOMAGNETISM; ELECTRONICS; DEPENDENCE; FILMS AB We systematically investigated the possible magnetization reversal behavior in well-characterized, epitaxial, Fe/IrMn exchange-biased bilayers as a function of the antiferromagnetic (AF) layer thickness. Several kinds of multistep loops were observed for the samples measured at various field orientations. The angular dependence of the switching fields, observed using longitudinal and transverse magneto-optic Kerr effect, were shown to depend on the competition between the magnetocrystalline anisotropy and the exchange bias (EB). A modified "effective field" model was applied to quantitatively describe the evolution of the magnetic behavior and correctly predict the occurrence of different magnetic switching processes. The dependence of the effective anisotropy fields on the AF layer thickness directly reflects the competing effects of the pinned and rotatable AF spins at the EB interface. (c) 2011 American Institute of Physics. [doi:10.1063/1.3561516] C1 [Zhang, Wei; Krishnan, Kannan M.] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA. [Bowden, Mark E.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Krishnan, KM (reprint author), Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA. EM zwei@uw.edu; kannanmk@uw.edu RI Zhang, Wei/G-1523-2012 OI Zhang, Wei/0000-0002-5878-3090 FU DoE/BES [ER45987]; DoE office of biological and environmental research located at PNNL FX This work was supported by DoE/BES under Grant No. ER45987. Part of the research was performed using EMSL, a user facility sponsored by DoE office of biological and environmental research located at PNNL. We thank Q. F. Zhan for helpful discussions. NR 27 TC 19 Z9 19 U1 1 U2 21 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 EI 1077-3118 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 28 PY 2011 VL 98 IS 9 AR 092503 DI 10.1063/1.3561516 PG 3 WC Physics, Applied SC Physics GA 730IJ UT WOS:000288026700045 ER PT J AU Zhou, YG Yang, P Wang, ZG Xiao, HY Zu, XT Sun, X Khaleel, MA Gao, F AF Zhou, Y. G. Yang, P. Wang, Z. G. Xiao, H. Y. Zu, X. T. Sun, X. Khaleel, M. A. Gao, F. TI Functionalized graphene nanoroads for quantum well device SO APPLIED PHYSICS LETTERS LA English DT Article ID METAL ATOMS; NANORIBBONS AB Using density functional theory, a series of calculations of structural and electronic properties of Si-substituted graphene were conducted. Through substituting C atoms by Si atoms on graphene in the present study, we found that the band gap of graphene can be continuously tuned with differently substitutional concentration. To utilize such substitution-induced band gap changes, we proposed a special design to fabricate graphene-based quantum well device. (C) 2011 American Institute of Physics. [doi:10.1063/1.3560981] C1 [Zhou, Y. G.; Wang, Z. G.; Xiao, H. Y.; Zu, X. T.] Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China. [Zhou, Y. G.; Yang, P.; Sun, X.; Khaleel, M. A.; Gao, F.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Zu, XT (reprint author), Univ Elect Sci & Technol China, Dept Appl Phys, Chengdu 610054, Peoples R China. EM xtzu@uestc.edu.cn; fei.gao@pnl.gov RI Yang, Ping/E-5355-2011; Xiao, Haiyan/A-1450-2012; Gao, Fei/H-3045-2012; Wang, Zhiguo/B-7132-2009; OI khaleel, mohammad/0000-0001-7048-0749; Yang, Ping/0000-0003-4726-2860 FU Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy; Royal Academy of Engineering-Research Exchanges with China and India; Young Scientist Foundation of Sichuan [09ZQ026-029]; National Natural Science Foundation of China [G0501040111004023]; U.S. Department of Energy's Office of Biological and Environmental Research, at Pacific Northwest National Laboratory FX This study was financially supported from the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, U.S. Department of Energy. X. T. Zu was supported by the Royal Academy of Engineering-Research Exchanges with China and India Awards. Z. G. Wang was financially supported by the Young Scientist Foundation of Sichuan (Grant No. 09ZQ026-029). H. Y. Xiao was supported by the National Natural Science Foundation of China (Grant No. G0501040111004023). A portion of this research was performed using the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research, located at Pacific Northwest National Laboratory and operated for DOE by Battelle. NR 21 TC 5 Z9 6 U1 3 U2 26 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 28 PY 2011 VL 98 IS 9 AR 093108 DI 10.1063/1.3560981 PG 3 WC Physics, Applied SC Physics GA 730IJ UT WOS:000288026700069 ER PT J AU Gull, E Staar, P Fuchs, S Nukala, P Summers, MS Pruschke, T Schulthess, TC Maier, T AF Gull, Emanuel Staar, Peter Fuchs, Sebastian Nukala, Phani Summers, Michael S. Pruschke, Thomas Schulthess, Thomas C. Maier, Thomas TI Submatrix updates for the continuous-time auxiliary-field algorithm SO PHYSICAL REVIEW B LA English DT Article ID MONTE-CARLO METHOD; CORRELATED FERMIONS; INFINITE DIMENSIONS; ELECTRON-SYSTEMS; RENORMALIZATION-GROUP; ANDERSON MODEL; SUPERCONDUCTIVITY; LATTICE AB We present a submatrix update algorithm for the continuous-time auxiliary field method that allows the simulation of large lattice and impurity problems. The algorithm takes optimal advantage of modern CPU architectures by consistently using matrix instead of vector operations, resulting in a speedup of a factor of approximate to 8 and thereby allowing access to larger systems and lower temperature. We illustrate the power of our algorithm at the example of a cluster dynamical mean field simulation of the Neel transition in the three-dimensional Hubbard model, where we show momentum dependent self-energies for clusters with up to 100 sites. C1 [Gull, Emanuel] Columbia Univ, Dept Phys, New York, NY 10027 USA. [Staar, Peter; Schulthess, Thomas C.] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland. [Fuchs, Sebastian; Pruschke, Thomas] Univ Gottingen, Inst Theoret Phys, D-37077 Gottingen, Germany. [Nukala, Phani; Summers, Michael S.; Maier, Thomas] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. [Maier, Thomas] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Gull, E (reprint author), Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA. RI Pruschke, Thomas/H-5046-2011; Pruschke, Thomas/H-5065-2011; Gull, Emanuel/A-2362-2010; Maier, Thomas/F-6759-2012 OI Gull, Emanuel/0000-0002-6082-1260; Maier, Thomas/0000-0002-1424-9996 FU NSF [DMR-0705847]; Deutsche Forschungsgemeinschaft [SFB 602]; Office of Science of the U. S. Department of Energy [DE-AC05-00OR22725]; Division of Scientific User Facilities, U.S. Department of Energy [CNMS2009-219] FX We acknowledge fruitful discussions with A. Lichtenstein, A. Millis, O. Parcollet, L. Pollet, M. Troyer, A. Georges, and P. Werner. The implementation of the submatrix updates is based on the ALPS48 library. Preliminary calculations were done on the Brutus cluster at ETH Zurich. 3D calculations44 used additional resources provided by GWDG and HLRN. Scaling calculations were performed on Jaguar at ORNL. EG acknowledges funding by NSF DMR-0705847, SF and TP funding by the Deutsche Forschungsgemeinschaft through SFB 602. This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U. S. Department of Energy under Contract No. DE-AC05-00OR22725. The research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy, under Project No. CNMS2009-219. NR 47 TC 40 Z9 40 U1 0 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 28 PY 2011 VL 83 IS 7 AR 075122 DI 10.1103/PhysRevB.83.075122 PG 9 WC Physics, Condensed Matter SC Physics GA 727KD UT WOS:000287796600002 ER PT J AU Jiang, C Liu, XY Sickafus, KE AF Jiang, Chao Liu, Xiang-Yang Sickafus, Kurt E. TI First-principles prediction of the thermodynamic stability of xenon in monoclinic, tetragonal, and yttrium-stabilized cubic ZrO2 SO PHYSICAL REVIEW B LA English DT Article ID FISSION-PRODUCTS; URANIUM-DIOXIDE; TEMPERATURE; ZIRCONIA; BEHAVIOR AB Fission product incorporation in ceramic fuels has long been an active area of research. In this work, we consider a special case of xenon incorporation in ZrO2 in the framework of closed systems under extreme radiation conditions where thermal defects are less important than cascade driven defects. The energetics of a variety of defect configurations associated with xenon incorporation are considered. We use first-principles density-functional theory (DFT) calculations to predict the thermodynamic stability of xenon in different ZrO2 structural forms, including monoclinic, tetragonal, and yttrium-stabilized cubic ZrO2. Two defect configurations are found to dominate the fission gas incorporation process: xenon interstitial and oxygen substitutional configurations. In yttrium-stabilized cubic ZrO2, the pre-existing structural oxygen vacancies provide ideal sites for Xe incorporation since no oxygen Frenkel pairs need to be formed. The charge-transfer issue in oxides modeling is important in defects calculations. This issue has also been addressed through our supercell benchmark calculations. C1 [Jiang, Chao] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China. [Liu, Xiang-Yang; Sickafus, Kurt E.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. RP Jiang, C (reprint author), Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China. EM chaopsu@gmail.com; xyliu@lanl.gov RI Jiang, Chao/A-2546-2011; Jiang, Chao/D-1957-2017 OI Jiang, Chao/0000-0003-0610-6327 FU Los Alamos National Laboratory (LANL); US Department of Energy [DE-AC52-06NA25396] FX We acknowledge helpful discussions with Blas Uberuaga and Steve Valone. This work was supported by the Los Alamos National Laboratory (LANL) Directed Research and Development Program. LANL is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US Department of Energy under Contract No. DE-AC52-06NA25396. NR 18 TC 11 Z9 11 U1 2 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD FEB 28 PY 2011 VL 83 IS 5 AR 052103 DI 10.1103/PhysRevB.83.052103 PG 4 WC Physics, Condensed Matter SC Physics GA 727JU UT WOS:000287795500001 ER PT J AU Stewart, MK Yee, CH Liu, JA Kareev, M Smith, RK Chapler, BC Varela, M Ryan, PJ Haule, K Chakhalian, J Basov, DN AF Stewart, M. K. Yee, C. -H. Liu, Jian Kareev, M. Smith, R. K. Chapler, B. C. Varela, M. Ryan, P. J. Haule, K. Chakhalian, J. Basov, D. N. TI Optical study of strained ultrathin films of strongly correlated LaNiO3 SO PHYSICAL REVIEW B LA English DT Article ID T-C SUPERCONDUCTORS; INTERLAYER CONDUCTIVITY; ELECTRONIC-PROPERTIES; SPECTRAL WEIGHT; CHARGE DYNAMICS; RNIO3 R; ELECTRODYNAMICS; TRANSITION; PSEUDOGAP; PR AB An optical study of fully strained ultrathin LaNiO3 films is presented and compared with LDA + DMFT calculations. LaNiO3 films were grown by pulsed laser deposition on LaAlO3 and SrTiO3 substrates which provide compressive and tensile strain, respectively. Optical conductivity data show a Drude peak with a spectral weight that is significantly reduced compared to that obtained from LDA calculations. The extended Drude analysis reveals the presence of a pseudogap around 80 meV for the film on SrTiO3 and near 40 meV, at low temperature only, for the film on LAO. An unusual temperature dependence of the optical conductivity is observed, with the Drude plasma frequency increasing by up to 20% at low temperature due to spectral weight transfer from bands lying 2-4 eV below the Fermi energy. Such a strong temperature dependence of the Drude spectral weight has previously been reported for correlated electron systems in which a phase transition is present. In LaNiO3, however, no phase transition is observed. C1 [Stewart, M. K.; Smith, R. K.; Chapler, B. C.; Basov, D. N.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Yee, C. -H.; Haule, K.] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Liu, Jian; Kareev, M.; Chakhalian, J.] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA. [Varela, M.] Oak Ridge Natl Lab, Mat Sci Technol Div, Oak Ridge, TN 37831 USA. [Ryan, P. J.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. RP Stewart, MK (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. EM mstewart@physics.ucsd.edu RI Varela, Maria/H-2648-2012; Liu, Jian/I-6746-2013; Varela, Maria/E-2472-2014; Chakhalian, Jak/F-2274-2015 OI Liu, Jian/0000-0001-7962-2547; Varela, Maria/0000-0002-6582-7004; FU DOD-ARO [0402-17291]; NSF [DMR-0747808]; DOE-BES FX J.C. was supported by DOD-ARO under Grant No. 0402-17291 and by NSF Grant No. DMR-0747808. Work at UCSD is supported by DOE-BES. NR 42 TC 36 Z9 36 U1 3 U2 21 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 28 PY 2011 VL 83 IS 7 AR 075125 DI 10.1103/PhysRevB.83.075125 PG 8 WC Physics, Condensed Matter SC Physics GA 727KD UT WOS:000287796600005 ER PT J AU Xu, B Cooper, VR Singh, DJ Feng, YP AF Xu, Bo Cooper, Valentino R. Singh, David J. Feng, Yuan Ping TI Relationship between bond stiffness and electrical energy storage capacity in oxides: Density functional calculations for h-La2O3, MgO, and BeO SO PHYSICAL REVIEW B LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; DEPENDENT DIELECTRIC-BREAKDOWN; CERAMIC DIELECTRICS; CONSTANT MATERIALS; HIGH-PRESSURE; LA2O3 FILMS; CRYSTALS; POLARIZATION; TEMPERATURE AB We report finite electric field calculations for three representative oxide dielectrics: MgO, La2O3, and BeO. These materials have very different dielectric constants and bond stiffness. Good accord with experimental low field data is obtained. We discuss the results from the point of view of dielectric energy storage and suggest that the low dielectric constant, high bond stiffness material BeO is best from the viewpoint of energy density. C1 [Xu, Bo; Feng, Yuan Ping] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore. [Xu, Bo] Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 33022, Jiangxi, Peoples R China. [Cooper, Valentino R.; Singh, David J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Xu, B (reprint author), Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore. RI Feng, Yuan Ping /A-4507-2012; Singh, David/I-2416-2012; Cooper, Valentino /A-2070-2012 OI Feng, Yuan Ping /0000-0003-2190-2284; Cooper, Valentino /0000-0001-6714-4410 FU Singapore Agency for Science, Technology and Research (A*STAR) [0721330044]; Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division FX We are grateful for helpful discussions with Mao-Hua Du and David Parker. Work at NUS was supported by the Singapore Agency for Science, Technology and Research (A*STAR) through Grant No. 0721330044. Work at ORNL was supported by the Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. NR 44 TC 10 Z9 10 U1 2 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 28 PY 2011 VL 83 IS 6 AR 064115 DI 10.1103/PhysRevB.83.064115 PG 7 WC Physics, Condensed Matter SC Physics GA 727JY UT WOS:000287796000008 ER PT J AU Adamson, P Andreopoulos, C Auty, DJ Ayres, DS Backhouse, C Barr, G Barrett, WL Bhattarai, P Bishai, M Blake, A Bock, GJ Boehnlein, DJ Bogert, D Budd, S Cavanaugh, S Cherdack, D Childress, S Choudhary, BC Coelho, JAB Coleman, SJ Corwin, L Cronin-Hennessy, D Damiani, D Danko, IZ de Jong, JK Devenish, NE Diwan, MV Dorman, M Escobar, CO Evans, JJ Falk, E Feldman, GJ Fields, TH Frohne, MV Gallagher, HR Gomes, RA Goodman, MC Gouffon, P Graf, N Gran, R Grant, N Grzelak, K Habig, A Harris, D Harris, PG Hartnell, J Hatcher, R Himmel, A Holin, A Huang, X Hylen, J Ilic, J Irwin, GM Isvan, Z Jaffe, DE James, C Jensen, D Kafka, T Kasahara, SMS Koizumi, G Kopp, S Kordosky, M Krahn, Z Kreymer, A Lang, K Lefeuvre, G Ling, J Litchfield, PJ Loiacono, L Lucas, P Mann, WA Marshak, ML Mayer, N McGowan, AM Mehdiyev, R Meier, JR Messier, MD Michael, DG Miller, WH Mishra, SR Mitchell, J Moore, CD Morfin, J Mualem, L Mufson, S Musser, J Naples, D Nelson, JK Newman, HB Nichol, RJ Nowak, JA Oliver, WP Orchanian, M Paley, J Patterson, RB Pawloski, G Pearce, GF Pittam, R Plunkett, RK Qiu, X Ratchford, J Raufer, TM Rebel, B Reichenbacher, J Rodrigues, PA Rosenfeld, C Rubin, HA Ryabov, VA Sanchez, MC Saoulidou, N Schneps, J Schreiner, P Shanahan, P Sousa, A Strait, M Tagg, N Talaga, RL Thomas, J Thomson, MA Tinti, G Toner, R Tzanakos, G Urheim, J Vahle, P Viren, B Weber, A Webb, RC White, C Whitehead, L Wojcicki, SG Wright, DM Yang, T Zwaska, R AF Adamson, P. Andreopoulos, C. Auty, D. J. Ayres, D. S. Backhouse, C. Barr, G. Barrett, W. L. Bhattarai, P. Bishai, M. Blake, A. Bock, G. J. Boehnlein, D. J. Bogert, D. Budd, S. Cavanaugh, S. Cherdack, D. Childress, S. Choudhary, B. C. Coelho, J. A. B. Coleman, S. J. Corwin, L. Cronin-Hennessy, D. Damiani, D. Danko, I. Z. de Jong, J. K. Devenish, N. E. Diwan, M. V. Dorman, M. Escobar, C. O. Evans, J. J. Falk, E. Feldman, G. J. Fields, T. H. Frohne, M. V. Gallagher, H. R. Gomes, R. A. Goodman, M. C. Gouffon, P. Graf, N. Gran, R. Grant, N. Grzelak, K. Habig, A. Harris, D. Harris, P. G. Hartnell, J. Hatcher, R. Himmel, A. Holin, A. Huang, X. Hylen, J. Ilic, J. Irwin, G. M. Isvan, Z. Jaffe, D. E. James, C. Jensen, D. Kafka, T. Kasahara, S. M. S. Koizumi, G. Kopp, S. Kordosky, M. Krahn, Z. Kreymer, A. Lang, K. Lefeuvre, G. Ling, J. Litchfield, P. J. Loiacono, L. Lucas, P. Mann, W. A. Marshak, M. L. Mayer, N. McGowan, A. M. Mehdiyev, R. Meier, J. R. Messier, M. D. Michael, D. G. Miller, W. H. Mishra, S. R. Mitchell, J. Moore, C. D. Morfin, J. Mualem, L. Mufson, S. Musser, J. Naples, D. Nelson, J. K. Newman, H. B. Nichol, R. J. Nowak, J. A. Oliver, W. P. Orchanian, M. Paley, J. Patterson, R. B. Pawloski, G. Pearce, G. F. Pittam, R. Plunkett, R. K. Qiu, X. Ratchford, J. Raufer, T. M. Rebel, B. Reichenbacher, J. Rodrigues, P. A. Rosenfeld, C. Rubin, H. A. Ryabov, V. A. Sanchez, M. C. Saoulidou, N. Schneps, J. Schreiner, P. Shanahan, P. Sousa, A. Strait, M. Tagg, N. Talaga, R. L. Thomas, J. Thomson, M. A. Tinti, G. Toner, R. Tzanakos, G. Urheim, J. Vahle, P. Viren, B. Weber, A. Webb, R. C. White, C. Whitehead, L. Wojcicki, S. G. Wright, D. M. Yang, T. Zwaska, R. TI Measurement of the underground atmospheric muon charge ratio using the MINOS Near Detector SO PHYSICAL REVIEW D LA English DT Article ID COSMIC-RAY SPECTRA; TEV; RANGE AB The magnetized MINOS Near Detector, at a depth of 225 mwe, is used to measure the atmospheric muon charge ratio. The ratio of observed positive to negative atmospheric muon rates, using 301 days of data, is measured to be 1.266 +/- 0.001(stat)(-0.014)(+0.015)(syst). This measurement is consistent with previous results from other shallow underground detectors and is 0.108 +/- 0.019(stat + syst) lower than the measurement at the functionally identical MINOS Far Detector at a depth of 2070 mwe. This increase in charge ratio as a function of depth is consistent with an increase in the fraction of muons arising from kaon decay for increasing muon surface energies. C1 [Adamson, P.; Bock, G. J.; Boehnlein, D. J.; Bogert, D.; Childress, S.; Choudhary, B. C.; Harris, D.; Hatcher, R.; Hylen, J.; James, C.; Jensen, D.; Koizumi, G.; Kreymer, A.; Lucas, P.; Moore, C. D.; Morfin, J.; Plunkett, R. K.; Rebel, B.; Saoulidou, N.; Shanahan, P.; Zwaska, R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Ayres, D. S.; Budd, S.; Fields, T. H.; Goodman, M. C.; Huang, X.; McGowan, A. M.; Reichenbacher, J.; Sanchez, M. C.; Talaga, R. L.] Argonne Natl Lab, Argonne, IL 60439 USA. [Tzanakos, G.] Univ Athens, Dept Phys, GR-15771 Athens, Greece. [Frohne, M. V.; Schreiner, P.] Benedictine Univ, Dept Phys, Lisle, IL 60532 USA. [Bishai, M.; Diwan, M. V.; Jaffe, D. E.; Viren, B.; Whitehead, L.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Himmel, A.; Michael, D. G.; Mualem, L.; Newman, H. B.; Orchanian, M.; Patterson, R. B.] CALTECH, Lauritsen Lab, Pasadena, CA 91125 USA. [Blake, A.; Mitchell, J.; Thomson, M. A.; Toner, R.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England. [Coelho, J. A. B.; Escobar, C. O.] Univ Estadual Campinas, UNICAMP, IFGW, BR-13083970 Campinas, SP, Brazil. [Gomes, R. A.] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil. [Cavanaugh, S.; Feldman, G. J.; Sanchez, M. C.; Sousa, A.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA. [Frohne, M. V.] Coll Holy Cross, Notre Dame, IN 46556 USA. [de Jong, J. K.; Graf, N.; Rubin, H. A.; White, C.] IIT, Div Phys, Chicago, IL 60616 USA. [Corwin, L.; Mayer, N.; Messier, M. D.; Mufson, S.; Musser, J.; Paley, J.; Urheim, J.] Indiana Univ, Bloomington, IN 47405 USA. [Sanchez, M. C.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Ryabov, V. A.] PN Lebedev Phys Inst, Dept Nucl Phys, Moscow 119991, Russia. [Wright, D. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Dorman, M.; Evans, J. J.; Holin, A.; Nichol, R. J.; Thomas, J.] UCL, Dept Phys & Astron, London WC1E 6BT, England. [Cronin-Hennessy, D.; Kasahara, S. M. S.; Krahn, Z.; Litchfield, P. J.; Marshak, M. L.; Meier, J. R.; Miller, W. H.; Nowak, J. A.; Strait, M.] Univ Minnesota, Minneapolis, MN 55455 USA. [Bhattarai, P.; Gran, R.; Habig, A.] Univ Minnesota, Dept Phys, Duluth, MN 55812 USA. [Tagg, N.] Otterbein Coll, Westerville, OH 43081 USA. [Backhouse, C.; Barr, G.; de Jong, J. K.; Pittam, R.; Rodrigues, P. A.; Tinti, G.; Weber, A.] Univ Oxford, Subdept Particle Phys, Oxford OX1 3RH, England. [Danko, I. Z.; Isvan, Z.; Naples, D.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA. [Andreopoulos, C.; Grant, N.; Hartnell, J.; Ilic, J.; Pearce, G. F.; Raufer, T. M.] Rutherford Appleton Lab, Sci & Technol Facil Council, Didcot OX11 0QX, Oxon, England. [Gouffon, P.] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil. [Ling, J.; Mishra, S. R.; Rosenfeld, C.] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA. [Irwin, G. M.; Pawloski, G.; Qiu, X.; Wojcicki, S. G.; Yang, T.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. [Auty, D. J.; Devenish, N. E.; Falk, E.; Harris, P. G.; Hartnell, J.; Lefeuvre, G.] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex, England. [Webb, R. C.] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA. [Kopp, S.; Lang, K.; Loiacono, L.; Mehdiyev, R.; Ratchford, J.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. [Cherdack, D.; Gallagher, H. R.; Kafka, T.; Mann, W. A.; Oliver, W. P.; Schneps, J.] Tufts Univ, Dept Phys, Medford, MA 02155 USA. [Grzelak, K.] Warsaw Univ, Dept Phys, PL-00681 Warsaw, Poland. [Barrett, W. L.] Western Washington Univ, Dept Phys, Bellingham, WA 98225 USA. [Coleman, S. J.; Damiani, D.; Kordosky, M.; Nelson, J. K.; Vahle, P.] Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA. RP Adamson, P (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. RI Nowak, Jaroslaw/P-2502-2016; Ling, Jiajie/I-9173-2014; Inst. of Physics, Gleb Wataghin/A-9780-2017; Gomes, Ricardo/B-6899-2008; Qiu, Xinjie/C-6164-2012; Coelho, Joao/D-3546-2013; Tinti, Gemma/I-5886-2013; Ryabov, Vladimir/E-1281-2014; Evans, Justin/P-4981-2014; Gouffon, Philippe/I-4549-2012 OI Hartnell, Jeffrey/0000-0002-1744-7955; Cherdack, Daniel/0000-0002-3829-728X; Weber, Alfons/0000-0002-8222-6681; Nowak, Jaroslaw/0000-0001-8637-5433; Ling, Jiajie/0000-0003-2982-0670; COLEMAN, STEPHEN/0000-0002-4621-9169; Corwin, Luke/0000-0001-7143-3821; Gomes, Ricardo/0000-0003-0278-4876; Evans, Justin/0000-0003-4697-3337; Gouffon, Philippe/0000-0001-7511-4115 FU U.S. DOE; United Kingdom STFC; U.S. NSF; State and University of Minnesota; University of Athens, Greece; Brazil FAPESP; Brazil CNPq FX This work was supported by the U.S. DOE, the United Kingdom STFC, the U.S. NSF, the State and University of Minnesota, the University of Athens, Greece, and Brazil's FAPESP and CNPq. We are grateful to the Minnesota Department of Natural Resources, the crew of Soudan Underground Laboratory, and the staff of Fermilab for their contributions to this effort. NR 34 TC 14 Z9 14 U1 0 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 EI 1550-2368 J9 PHYS REV D JI Phys. Rev. D PD FEB 28 PY 2011 VL 83 IS 3 AR 032011 DI 10.1103/PhysRevD.83.032011 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 727KM UT WOS:000287797900002 ER PT J AU Hansen, BJ Chan, HL Lu, JA Lu, GH Chen, JH AF Hansen, Benjamin J. Chan, Hoi-lam (Iris) Lu, Jian Lu, Ganhua Chen, Junhong TI Short-circuit diffusion growth of long bi-crystal CuO nanowires SO CHEMICAL PHYSICS LETTERS LA English DT Article ID MECHANICAL ATTRITION TREATMENT; COPPER-OXIDE; OXIDATION; SURFACE; SCALE; KINETICS; FILMS; ARRAY; AIR AB The growth of CuO nanowires (NWs) through direct oxidation of copper is widely utilized. We give further evidence of a short-circuit, grain boundary diffusion mechanism. First, we show enhanced CuO NW growth through oxidizing nanocrystalline Cu. Second, we show the presence of a bi-crystal structure with a Cu rich (1 1 -2)/(0 0 -1) boundary along the entire length of the NW. Our analysis suggests that the growth of CuO NWs occurs via the short-circuit diffusion of Cu ions across the Cu(2)O layer, followed by short-circuit diffusion along the CuO NW bi-crystal grain boundary and to the NW tip, where subsequent oxidation occurs. (C) 2011 Elsevier B. V. All rights reserved. C1 [Chen, Junhong] Univ Wisconsin, Dept Mech Engn, Milwaukee, WI 53201 USA. [Hansen, Benjamin J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Chan, Hoi-lam (Iris); Lu, Jian] City Univ Hong Kong, Dept Mech Engn & Engn Management, Kowloon, Hong Kong, Peoples R China. [Chen, Junhong] Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China. [Chen, Junhong] Tongji Univ, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China. RP Chen, JH (reprint author), Univ Wisconsin, Dept Mech Engn, Milwaukee, WI 53201 USA. EM jhchen@uwm.edu RI Lu, Ganhua/B-4643-2010 OI Lu, Ganhua/0000-0003-3279-8427 FU National Science Foundation [CMMI-0609059]; Hong Kong Polytechnic University [BB90]; National Science Foundation FX The authors would like to thank Dr. Yong Ding for his technical expertise and assistance with the TEM work. This work was financially supported by the National Science Foundation through an IREE supplemental grant of CMMI-0609059 and the Hong Kong Polytechnic University funds for niche areas under grant No. BB90. BJH was supported by a National Science Foundation Graduate Research Fellowship. NR 31 TC 17 Z9 18 U1 3 U2 29 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD FEB 28 PY 2011 VL 504 IS 1-3 BP 41 EP 45 DI 10.1016/j.cplett.2011.01.040 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 726CF UT WOS:000287695300009 ER PT J AU Alver, B Back, BB Baker, MD Ballintijn, M Barton, DS Betts, RR Bickley, AA Bindel, R Budzanowski, A Busza, W Carroll, A Chai, Z Chetluru, V Decowski, MP Garcia, E Gburek, T George, N Gulbrandsen, K Gushue, S Halliwell, C Hamblen, J Heintzelman, GA Henderson, C Hofman, DJ Hollis, RS Holynski, R Holzman, B Iordanova, A Johnson, E Kane, JL Katzy, J Khan, N Kotula, J Kucewicz, W Kulinich, P Kuo, CM Li, W Lin, WT Loizides, C Manly, S McLeod, D Michalowski, J Mignerey, AC Nouicer, R Olszewski, A Pak, R Park, IC Pernegger, H Reed, C Remsberg, LP Reuter, M Roland, C Roland, G Rosenberg, L Sagerer, J Sarin, P Sawicki, P Sedykh, I Skulski, W Smith, CE Steadman, SG Steinberg, P Stephans, GSF Stodulski, M Sukhanov, A Tonjes, MB Trzupek, A Vale, C van Nieuwenhuizen, GJ Vaurynovich, SS Verdier, R Veres, GI Wadsworth, B Walters, P Wenger, E Wolfs, FLH Wosiek, B Wozniak, K Wuosmaa, AH Wyslouch, B AF Alver, B. Back, B. B. Baker, M. D. Ballintijn, M. Barton, D. S. Betts, R. R. Bickley, A. A. Bindel, R. Budzanowski, A. Busza, W. Carroll, A. Chai, Z. Chetluru, V. Decowski, M. P. Garcia, E. Gburek, T. George, N. Gulbrandsen, K. Gushue, S. Halliwell, C. Hamblen, J. Heintzelman, G. A. Henderson, C. Hofman, D. J. Hollis, R. S. Holynski, R. Holzman, B. Iordanova, A. Johnson, E. Kane, J. L. Katzy, J. Khan, N. Kotula, J. Kucewicz, W. Kulinich, P. Kuo, C. M. Li, W. Lin, W. T. Loizides, C. Manly, S. McLeod, D. Michalowski, J. Mignerey, A. C. Nouicer, R. Olszewski, A. Pak, R. Park, I. C. Pernegger, H. Reed, C. Remsberg, L. P. Reuter, M. Roland, C. Roland, G. Rosenberg, L. Sagerer, J. Sarin, P. Sawicki, P. Sedykh, I. Skulski, W. Smith, C. E. Steadman, S. G. Steinberg, P. Stephans, G. S. F. Stodulski, M. Sukhanov, A. Tonjes, M. B. Trzupek, A. Vale, C. van Nieuwenhuizen, G. J. Vaurynovich, S. S. Verdier, R. Veres, G. I. Wadsworth, B. Walters, P. Wenger, E. Wolfs, F. L. H. Wosiek, B. Wozniak, K. Wuosmaa, A. H. Wyslouch, B. TI Charged-particle multiplicity and pseudorapidity distributions measured with the PHOBOS detector in Au plus Au, Cu plus Cu, d plus Au, and p plus p collisions at ultrarelativistic energies SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION COLLISIONS; MULTIPARTICLE PRODUCTION; NUCLEUS INTERACTIONS; CENTRALITY; READOUT; CHAMBER; TARGETS; SYSTEM AB Pseudorapidity distributions of charged particles emitted in Au + Au, Cu + Cu, d + Au, and p + p collisions over a wide energy range have been measured using the PHOBOS detector at the BNL Relativistic Heavy-Ion Collider (RHIC). The centrality dependence of both the charged particle distributions and the multiplicity at midrapidity were measured. Pseudorapidity distributions of charged particles emitted with vertical bar eta vertical bar < 5.4, which account for between 95% and 99% of the total charged-particle emission associated with collision participants, are presented for different collision centralities. Both the midrapidity density dN(ch)/d eta and the total charged-particle multiplicity N-ch are found to factorize into a product of independent functions of collision energy, root S-NN, and centrality given in terms of the number of nucleons participating in the collision, N-part. The total charged particle multiplicity, observed in these experiments and those at lower energies, assumes a linear dependence of (ln S-NN)(2) over the full range of collision energy of root S-NN = 2.7-200 GeV. C1 [Alver, B.; Ballintijn, M.; Busza, W.; Decowski, M. P.; Gulbrandsen, K.; Henderson, C.; Kane, J. L.; Katzy, J.; Kulinich, P.; Li, W.; Loizides, C.; Pernegger, H.; Reed, C.; Roland, C.; Roland, G.; Rosenberg, L.; Sarin, P.; Steadman, S. G.; Stephans, G. S. F.; Vale, C.; van Nieuwenhuizen, G. J.; Vaurynovich, S. S.; Verdier, R.; Veres, G. I.; Wadsworth, B.; Wenger, E.; Wyslouch, B.] MIT, Cambridge, MA 02139 USA. [Back, B. B.; Wuosmaa, A. H.] Argonne Natl Lab, Argonne, IL 60439 USA. [Baker, M. D.; Barton, D. S.; Carroll, A.; Chai, Z.; George, N.; Gushue, S.; Heintzelman, G. A.; Holzman, B.; Nouicer, R.; Pak, R.; Remsberg, L. P.; Sedykh, I.; Steinberg, P.; Sukhanov, A.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Betts, R. R.; Chetluru, V.; Garcia, E.; Halliwell, C.; Hofman, D. J.; Hollis, R. S.; Iordanova, A.; Kucewicz, W.; McLeod, D.; Nouicer, R.; Reuter, M.; Sagerer, J.; Smith, C. E.] Univ Illinois, Chicago, IL 60607 USA. [Bickley, A. A.; Bindel, R.; Mignerey, A. C.; Tonjes, M. B.] Univ Maryland, College Pk, MD 20742 USA. [Budzanowski, A.; Gburek, T.; Holynski, R.; Kotula, J.; Michalowski, J.; Olszewski, A.; Sawicki, P.; Stodulski, M.; Trzupek, A.; Wosiek, B.; Wozniak, K.] Inst Nucl Phys PAN, Krakow, Poland. [Hamblen, J.; Johnson, E.; Khan, N.; Manly, S.; Park, I. C.; Skulski, W.; Walters, P.; Wolfs, F. L. H.] Univ Rochester, Rochester, NY 14627 USA. [Kuo, C. M.; Lin, W. T.] Natl Cent Univ, Chungli 32054, Taiwan. RP Alver, B (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA. EM busza@mit.edu RI Mignerey, Alice/D-6623-2011; OI Holzman, Burt/0000-0001-5235-6314 FU US DOE [DE-AC02-98CH10886, DE-FG02-93ER40802, DE-FG02-94ER40818, DE-FG02-94ER40865, DE-FG02-99ER41099, DE-AC02-06CH11357]; US NSF [9603486, 0072204, 0245011]; Polish MNiSWN [N N202 282234]; NSC of Taiwan [NSC 89-2112-M-008-024]; Hungarian OTKA [F 049823] FX This work was partially supported by US DOE Grants No. DE-AC02-98CH10886, No. DE-FG02-93ER40802, No. DE-FG02-94ER40818, No. DE-FG02-94ER40865, No. DE-FG02-99ER41099, and No. DE-AC02-06CH11357, by US NSF Grants No. 9603486, No. 0072204, and No. 0245011, by the Polish MNiSW Grant No. N N202 282234 (2008-2010), by NSC of Taiwan Contract NSC 89-2112-M-008-024, and by a Hungarian OTKA grant (F 049823). NR 52 TC 124 Z9 129 U1 0 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD FEB 28 PY 2011 VL 83 IS 2 AR 024913 DI 10.1103/PhysRevC.83.024913 PG 24 WC Physics, Nuclear SC Physics GA 727KJ UT WOS:000287797400005 ER PT J AU Chen, Y Kang, QJ Cai, QD Zhang, DX AF Chen, Yu Kang, Qinjun Cai, Qingdong Zhang, Dongxiao TI Lattice Boltzmann method on quadtree grids SO PHYSICAL REVIEW E LA English DT Article ID FORTH ERROR COMPENSATION; NAVIER-STOKES EQUATIONS; PARTICULATE SUSPENSIONS; NUMERICAL SIMULATIONS; EXTRAPOLATION METHOD; BOUNDARY-CONDITIONS; POROUS-MEDIA; FLUID-FLOWS; MODEL; MESH AB A lattice Boltzmann method on nonuniform quadtree grids is proposed. Our method employs the interpolation-supplemented lattice Boltzmann model. The advantages of the quadtree grid are preserved by using linear interpolation instead of quadratic interpolation to complete the streaming step in the lattice Boltzmann method. The back-and-forth error compensation and correction (BFECC) method is used to improve the accuracy, so that the second-order accuracy of the conventional lattice Boltzmann method is maintained. Several numerical cases, including a BFECC streaming test, lid-driven cavity flow, and flow over an asymmetrically placed cylinder in a channel, are carried out to demonstrate the accuracy and efficiency of our method. C1 [Chen, Yu; Cai, Qingdong] Peking Univ, Ctr Appl Phys & Technol, State Key Lab Turbulence & Complex Syst LTCS, Beijing 100871, Peoples R China. [Chen, Yu; Cai, Qingdong] Peking Univ, Dept Mech & Aerosp Engn, Beijing 100871, Peoples R China. [Chen, Yu; Zhang, Dongxiao] Univ So Calif, Sonny Astani Dept Civil & Environm Engn, Los Angeles, CA 90089 USA. [Chen, Yu; Kang, Qinjun] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. [Zhang, Dongxiao] Peking Univ, Dept Energy & Resources Engn, Beijing 100871, Peoples R China. RP Chen, Y (reprint author), Peking Univ, Ctr Appl Phys & Technol, State Key Lab Turbulence & Complex Syst LTCS, Beijing 100871, Peoples R China. EM caiqd@pku.edu.cn RI Zhang, Dongxiao/D-5289-2009; Kang, Qinjun/A-2585-2010; Cai, Qingdong/B-1300-2012 OI Zhang, Dongxiao/0000-0001-6930-5994; Kang, Qinjun/0000-0002-4754-2240; FU National Natural Science Foundation of China [10872005]; LANL [20100025DR]; China Scholarship Council [2008601145] FX The authors would like to thank Zhenhua Xia and Dr. Kevin Connington for helpful discussions and for providing the LB code to treat curved boundaries. We would also like to thank Dr. Mark Porter for reviewing this paper and providing useful comments. This work is supported by the National Natural Science Foundation of China (No. 10872005) and LANL's LDRD program (20100025DR). Yu's academic visit at USC is supported by the China Scholarship Council (No. 2008601145) NR 53 TC 6 Z9 6 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 EI 1550-2376 J9 PHYS REV E JI Phys. Rev. E PD FEB 28 PY 2011 VL 83 IS 2 AR 026707 DI 10.1103/PhysRevE.83.026707 PN 2 PG 10 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 727KZ UT WOS:000287799800011 PM 21405930 ER PT J AU Bahns, JT Sankaranarayanan, SKRS Gray, SK Chen, L AF Bahns, J. T. Sankaranarayanan, S. K. R. S. Gray, S. K. Chen, L. TI Optically Directed Assembly of Continuous Mesoscale Filaments SO PHYSICAL REVIEW LETTERS LA English DT Article ID LIGHT-INDUCED AGGREGATION; NANOPARTICLES; PARTICLES AB We demonstrate irreversible continuous filament formation when a weak laser focus is positioned near the edge of an evaporating colloidal droplet containing carbon and gold nanoparticles. Optical trapping, hydrothermal, and chemical interactions lead to controlled colloidal synthesis of stable, irreversible mesoscale filaments of arbitrary shape and size. Mechanisms for this optically directed assembly are discussed with fluid dynamics, molecular dynamics, and lattice kinetic Monte Carlo calculations. C1 [Bahns, J. T.; Chen, L.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. [Sankaranarayanan, S. K. R. S.; Gray, S. K.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Bahns, JT (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM jbahns@anl.gov FU U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [BER-6132800]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX J. T. B. and L. C. acknowledge the U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research, under Grant No. BER-6132800. Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. We thank the University of South Florida for providing computational facilities, Yi Mei and Q. Guo for providing images, and N. F. Scherer and the anonymous reviewers for helpful comments. NR 19 TC 8 Z9 8 U1 0 U2 7 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 FEB 28 PY 2011 VL 106 IS 9 AR 095501 DI 10.1103/PhysRevLett.106.095501 PG 4 WC Physics, Multidisciplinary SC Physics GA 727LE UT WOS:000287800500010 PM 21405632 ER PT J AU Machacek, JR Andrianarijaona, VM Furst, JE Kilcoyne, ALD Landers, AL Litaker, ET McLaughlin, KW Gay, TJ AF Machacek, J. R. Andrianarijaona, V. M. Furst, J. E. Kilcoyne, A. L. D. Landers, A. L. Litaker, E. T. McLaughlin, K. W. Gay, T. J. TI Production of excited atomic hydrogen and deuterium from H-2, HD and D-2 photodissociation SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID MOLECULAR-HYDROGEN; SYNCHROTRON-RADIATION; LYMAN-ALPHA; DISSOCIATION DYNAMICS; STATES; FLUORESCENCE; FRAGMENTS; CARBON; N2; H2 AB We have measured the production of Lyman alpha and Balmer alpha fluorescence from atomic H and D for the photodissociation of H-2, HD and D-2 by linearly-polarized photons with energies between 22 and 64 eV. We discuss systematic uncertainties associated with our data, and compare our results with previous experimental results and ab initio calculations of the dissociation process. We comment on the discrepancies. C1 [Machacek, J. R.; Litaker, E. T.; Gay, T. J.] Univ Nebraska, Behlen Lab Phys, Lincoln, NE 68588 USA. [Machacek, J. R.] Australian Natl Univ, Canberra, ACT 2601, Australia. [Andrianarijaona, V. M.] Pacific Union Coll, Dept Phys, Angwin, CA 94508 USA. [Furst, J. E.] Univ Newcastle Ourimbah, Sch Math & Phys Sci, Ourimbah, NSW 2258, Australia. [Kilcoyne, A. L. D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Landers, A. L.] Auburn Univ, Allison Lab, Auburn, AL 36849 USA. [McLaughlin, K. W.] Loras Coll, Dept Phys & Engn, Dubuque, IA 52001 USA. RP Machacek, JR (reprint author), Univ Nebraska, Behlen Lab Phys, Lincoln, NE 68588 USA. EM jma107@physics.anu.edu.au RI Furst, John/D-2335-2009; Landers, Allen/C-1213-2013; Machacek, Joshua/A-5316-2011; Kilcoyne, David/I-1465-2013 OI Furst, John/0000-0001-7506-3733; FU DOE; NSF [PHY-0653379, PHY-0821385]; ANSTO FX We would like to thank the referees for many helpful comments, J F Perez-Torres and Drs Fernando Martin and Jose Luis Sanz-Vicario for extending their theory to HD and Drs Harvey Gould and Jack Maseberg for useful conversations. This work was funded by the DOE through the use of the ALS, the NSF through grants PHY-0653379 and PHY-0821385, and ANSTO (Access to Major Research Facilities Programme). NR 29 TC 6 Z9 6 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-4075 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD FEB 28 PY 2011 VL 44 IS 4 AR 045201 DI 10.1088/0953-4075/44/4/045201 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 718SO UT WOS:000287146700006 ER PT J AU Linganiso, LZ Jacobs, G Azzam, KG Graham, UM Davis, BH Cronauer, DC Kropf, AJ Marshall, CL AF Linganiso, Linda Z. Jacobs, Gary Azzam, Khalid G. Graham, Uschi M. Davis, Burtron H. Cronauer, Donald C. Kropf, A. Jeremy Marshall, Christopher L. TI Low-temperature water-gas shift: Strategy to lower Pt loading by doping ceria with Ca2+ improves formate mobility/WGS rate by increasing surface O-mobility SO APPLIED CATALYSIS A-GENERAL LA English DT Article DE Water-gas shift; WGS; LTS; Pt/ceria; Divalent elements; Calcium doping ID FUEL-CELL APPLICATIONS; PSEUDO-STABILIZED FORMATE; PURE HYDROGEN-PRODUCTION; IN-SITU DRIFTS; METAL-CATALYSTS; METAL/CERIA CATALYSTS; PROCESSING CATALYSTS; PT-RE/ZRO2 CATALYSTS; COMPUTER-SIMULATION; REACTION-MECHANISMS AB In one view, the metal-oxide synergy (e.g., Pt metal and cerium oxide) has been explained in terms of the dehydrogenation of formate formed on the surface of the partially reducible oxide (PRO) by Pt across the interface, with H2O participating in the transition state of forward formate decomposition. In this work, Ca-doping of the ceria component in Pt/ceria catalysts was demonstrated by TPR and TPR-XANES measurements to facilitate the temperature of ceria surface shell and bulk reduction steps, and by TPR-XANES to increase the extents of surface shell and bulk reduction of ceria. The results thus confirm, experimentally, past theoretical models, which suggested that divalent elements (e.g., Ca) enhance both O-mobility and reducibility of ceria by weakening the Ce-O bond through lattice strain. This strain was also detected in our XRD measurements. A recent surface diffusion model postulated that increasing oxygen surface diffusion also improves the mobility of O-bound intermediates (e.g., formates, carbonates, carboxylates). In this work, in situ DRIFTS measurements confirm that improved formate decomposition rates were realized over the Ca-doped Pt promoted ceria catalysts possessing higher O-mobility relative to undoped Pt/ceria. In turn, improved LT-WGS rates were observed over the Ca-doped Pt/ceria catalysts. While the precise mechanism is still under debate, the enhanced mobility of O-bound intermediates by Ca-doping is suggested to be responsible for the significant boosts in CO conversion levels and TOFs observed during LT-WGS. Thus, doping ceria with elements like Ca provides a path forward for lowering the precious metal content (e.g., Pt), as well as the rare earth content (e.g., Ce) - catalytic components that are becoming increasingly expensive. (C) 2011 Elsevier B.V. All rights reserved. C1 [Linganiso, Linda Z.; Jacobs, Gary; Azzam, Khalid G.; Graham, Uschi M.; Davis, Burtron H.] Univ Kentucky, Ctr Appl Energy Res, Lexington, KY 40511 USA. [Cronauer, Donald C.; Kropf, A. Jeremy; Marshall, Christopher L.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Davis, BH (reprint author), Univ Kentucky, Ctr Appl Energy Res, 2540 Res Pk Dr, Lexington, KY 40511 USA. EM davis@caer.uky.edu RI ID, MRCAT/G-7586-2011; Marshall, Christopher/D-1493-2015; Jacobs, Gary/M-5349-2015 OI Marshall, Christopher/0000-0002-1285-7648; Jacobs, Gary/0000-0003-0691-6717 FU Commonwealth of Kentucky; U.S. Department of Energy (DOE), Office of Fossil Energy, National Energy Technology Laboratory (NETL); U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Department of Energy; MRCAT member institutions FX The work carried out at the CAER was supported in part by funding from the Commonwealth of Kentucky. Argonne's research was supported in part by the U.S. Department of Energy (DOE), Office of Fossil Energy, National Energy Technology Laboratory (NETL). The use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. MRCAT operations are supported by the Department of Energy and the MRCAT member institutions. NR 57 TC 28 Z9 29 U1 1 U2 28 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0926-860X EI 1873-3875 J9 APPL CATAL A-GEN JI Appl. Catal. A-Gen. PD FEB 28 PY 2011 VL 394 IS 1-2 BP 105 EP 116 DI 10.1016/j.apcata.2010.12.043 PG 12 WC Chemistry, Physical; Environmental Sciences SC Chemistry; Environmental Sciences & Ecology GA 730AP UT WOS:000287996100015 ER PT J AU Burns, LA Vazquez-Mayagoitia, A Sumpter, BG Sherrill, CD AF Burns, Lori A. Vazquez-Mayagoitia, Alvaro Sumpter, Bobby G. Sherrill, C. David TI Density-functional approaches to noncovalent interactions: A comparison of dispersion corrections (DFT-D), exchange-hole dipole moment (XDM) theory, and specialized functionals SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID VAN-DER-WAALS; POTENTIAL-ENERGY CURVES; PLESSET PERTURBATION-THEORY; AB-INITIO CALCULATION; PI-PI INTERACTIONS; THERMOCHEMICAL KINETICS; NONBONDED INTERACTIONS; BASIS-SETS; ACCURATE DESCRIPTIONS; ELECTRON-AFFINITIES AB A systematic study of techniques for treating noncovalent interactions within the computationally efficient density functional theory (DFT) framework is presented through comparison to benchmark-quality evaluations of binding strength compiled for molecular complexes of diverse size and nature. In particular, the efficacy of functionals deliberately crafted to encompass long-range forces, a posteriori DFT+dispersion corrections (DFT-D2 and DFT-D3), and exchange-hole dipole moment (XDM) theory is assessed against a large collection (469 energy points) of reference interaction energies at the CCSD(T) level of theory extrapolated to the estimated complete basis set limit. The established S22 [revised in J. Chem. Phys. 132, 144104 (2010)] and JSCH test sets of minimum-energy structures, as well as collections of dispersion-bound (NBC10) and hydrogen-bonded (HBC6) dissociation curves and a pairwise decomposition of a protein-ligand reaction site (HSG), comprise the chemical systems for this work. From evaluations of accuracy, consistency, and efficiency for PBE-D, BP86-D, B97-D, PBE0-D, B3LYP-D, B970-D, M05-2X, M06-2X, omega B97X-D, B2PLYP-D, XYG3, and B3LYP-XDM methodologies, it is concluded that distinct, often contrasting, groups of these elicit the best performance within the accessible double-zeta or robust triple-zeta basis set regimes and among hydrogen-bonded or dispersion-dominated complexes. For overall results, M05-2X, B97-D3, and B970-D2 yield superior values in conjunction with aug-cc-pVDZ, for a mean absolute deviation of 0.41-0.49 kcal/mol, and B3LYP-D3, B97-D3, omega B97X-D, and B2PLYP-D3 dominate with aug-cc-pVTZ, affording, together with XYG3/6-311+G(3df,2p), a mean absolute deviation of 0.33-0.38 kcal/mol. (C) 2011 American Institute of Physics. [doi:10.1063/1.3545971] C1 [Burns, Lori A.; Sherrill, C. David] Georgia Inst Technol, Sch Chem & Biochem, Ctr Computat Mol Sci & Technol, Atlanta, GA 30332 USA. [Vazquez-Mayagoitia, Alvaro] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Sumpter, Bobby G.] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA. [Sumpter, Bobby G.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Sherrill, C. David] Georgia Inst Technol, Sch Computat Sci & Engn, Atlanta, GA 30332 USA. RP Burns, LA (reprint author), Georgia Inst Technol, Sch Chem & Biochem, Ctr Computat Mol Sci & Technol, Atlanta, GA 30332 USA. EM sherrill@gatech.edu RI Sumpter, Bobby/C-9459-2013; Vazquez-Mayagoitia, Alvaro/A-9755-2010; OI Sumpter, Bobby/0000-0001-6341-0355; Burns, Lori/0000-0003-2852-5864; Sherrill, David/0000-0002-5570-7666 FU United States National Science Foundation [CHE-1011360]; NSF CRIF [CHE-0946869]; Georgia Institute of Technology; Center for Nanophase Materials Sciences at Oak Ridge National Laboratory by the Scientific User Facilities Division, U.S. Department of Energy; Department of Energy, Offices of Basic Energy Science; Advanced Scientific Computing Research as part of the SciDAC program; Office of Science of the U. S. Department of Energy [DE-AC05-00OR22725]; National Science Foundation FX This work was performed under the auspices of grants provided by the United States National Science Foundation (Grant No. CHE-1011360). The Center for Computational Molecular Science and Technology is funded through a NSF CRIF award (Grant No. CHE-0946869) and by Georgia Institute of Technology. B.G.S. acknowledges support from the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, U.S. Department of Energy. A.V.-M. acknowledges support from the Department of Energy, Offices of Basic Energy Science and Advanced Scientific Computing Research as part of the SciDAC program. This research used resources supported by the Office of Science of the U. S. Department of Energy under Contract No. DE-AC05-00OR22725 and advanced computing resources provided by the National Science Foundation. The computations were performed partially on Kraken at the National Institute for Computational Sciences (http://www.nics.tennessee.edu/). The authors wish to thank Professor Stefan Grimme for helpful discussions on the DFT-D3 method and Mr. Edward G. Hohenstein for inspiration regarding a figure. NR 98 TC 253 Z9 254 U1 12 U2 118 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 28 PY 2011 VL 134 IS 8 AR 084107 DI 10.1063/1.3545971 PG 25 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 727OS UT WOS:000287811300010 PM 21361527 ER PT J AU Santamore, DH Timmermans, E AF Santamore, D. H. Timmermans, E. TI Pseudospin and spin-spin interactions in ultracold alkali atoms SO NEW JOURNAL OF PHYSICS LA English DT Article ID PHASE-SEPARATION; FERMI GAS; QUANTUM; FERROMAGNETISM AB Ultra-cold alkali atoms trapped in two distinct hyperfine states in an external magnetic field can mimic magnetic systems of spin-1/2 particles. We describe the spin-dependent effective interaction as a spin-spin interaction. As a consequence of the zero range, the interaction of spin-1/2 bosons can be described as an Ising or, alternatively, as an XY-coupling. We calculated the spin-spin interaction parameters as a function of the external magnetic field in the degenerate internal state (DIS) approximation. We illustrate the advantage of the spin-spin interaction form by mapping the system of N spin-1/2 bosons confined by a tight trapping potential on that of N spin-1/2 spins coupled via an infinite range interaction. C1 [Santamore, D. H.] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA. [Timmermans, E.] Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA. RP Santamore, DH (reprint author), Temple Univ, Dept Phys, Philadelphia, PA 19122 USA. EM dhs18@temple.edu FU Los Alamos Laboratory Directed Research and Development (LDRD) FX The work of ET was supported by the Los Alamos Laboratory Directed Research and Development (LDRD) program. NR 42 TC 2 Z9 2 U1 0 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1367-2630 J9 NEW J PHYS JI New J. Phys. PD FEB 28 PY 2011 VL 13 AR 023043 DI 10.1088/1367-2630/13/2/023043 PG 23 WC Physics, Multidisciplinary SC Physics GA 728DU UT WOS:000287855200002 ER PT J AU Biswas, RR Balatsky, AV AF Biswas, Rudro R. Balatsky, Alexander V. TI Scattering from surface step edges in strong topological insulators SO PHYSICAL REVIEW B LA English DT Article ID SINGLE DIRAC CONE; GRAPHENE AB We study the characteristics of scattering processes at step edges on the surfaces of strong topological insulators (STIs), arising from restrictions imposed on the S matrix solely by time-reversal symmetry and translational invariance along the step edge. We show that the "perfectly reflecting" step edge that may be defined with these restrictions allow modulations in the local density of states (LDOS) near the step edge to decay no slower than 1/x, where x is the distance from the step edge. This is faster than in two-dimensional electron gases (2DEG)-where the LDOS decays as 1/root x-and shares the same cause as the suppression of backscattering in STI surface states. We also calculate the scattering at a delta function scattering potential and argue that generic step edges will produce a x(-3/2) decay of LDOS oscillations. Experimental implications are also discussed. C1 [Biswas, Rudro R.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA. [Biswas, Rudro R.; Balatsky, Alexander V.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Balatsky, Alexander V.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Biswas, RR (reprint author), Harvard Univ, Dept Phys, Cambridge, MA 02138 USA. EM rrbiswas@physics.harvard.edu; avb@lanl.gov FU US DOE thorough BES and LDRD; University of California UCOP [T027-09] FX We are grateful to D. Basov, Z. Hasan, S. Iyer-Biswas, H. Manoharan, N. Nagaosa, P. Roushan, H. Beidenkopf, Y. Xia, and A. Yazdani for useful discussions. We would like to especially thank the Yazdani group for pointing out that the step edge used by Alpichshev et al.10 was oriented perpendicular to the Gamma M direction and that the observed oscillations occurred at the nesting wave vector, and N. Nagaosa for telling us about possible bound states in the system. This work was supported by the US DOE thorough BES and LDRD and by the University of California UCOP program T027-09. NR 19 TC 27 Z9 27 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD FEB 28 PY 2011 VL 83 IS 7 AR 075439 DI 10.1103/PhysRevB.83.075439 PG 5 WC Physics, Condensed Matter SC Physics GA 727KD UT WOS:000287796600016 ER PT J AU Abazov, VM Abbott, B Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arnoud, Y Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Banerjee, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Bolton, TA Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Christoudias, T Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Cwiok, M Das, A Davies, G De, K de Jong, SJ De la Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Gadfort, T Garcia-Bellido, A Gavrilov, V Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guo, F Gutierrez, G Gutierrez, P Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, J Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C la Cruz, IHD Herner, K Hesketh, G Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hossain, S Hubacek, Z Huske, N Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jain, S Jamin, D Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, P Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M Love, P Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJOY Owen, M Padilla, M Pangilinan, M Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petrillo, G Petroff, P Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, P Rich, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F Rominsky, M Royon, C Rubinov, P Ruchti, R Safronov, G Sajot, G Sanchez-Hernandez, A Sanders, MP Sanghi, B Santos, AS Savage, G Sawyer, L Scanlon, T Schamberger, RD Scheglov, Y Schellman, H Schliephake, T Schlobohm, S Schwanenberger, C Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shary, V Shchukin, AA Shivpuri, RK Simak, V Sirotenko, V Skubic, P Slattery, P Smirnov, D Smith, KJ Snow, GR Snow, J Snyder, S Soldner-Rembold, S Sonnenschein, L Sopczak, A Sosebee, M Soustruznik, K Spurlock, B Stark, J Stolin, V Stoyanova, DA Strauss, M Strom, D Stutte, L Suter, L Svoisky, P Takahashi, M Tanasijczuk, A Taylor, W Titov, M Tokmenin, VV Tsai, YT Tsybychev, D Tuchming, B Tully, C Tuts, PM Uvarov, L Uvarov, S Uzunyan, S Van Kooten, R van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Verdier, P Vertogradov, LS Verzocchi, M Vesterinen, M Vilanova, D Vint, P Vokac, P Wahl, HD Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Welty-Rieger, L White, A Wicke, D Williams, MRJ Wilson, GW Wimpenny, SJ Wobisch, M Wood, DR Wyatt, TR Xie, Y Xu, C Yacoob, S Yamada, R Yang, WC Yasuda, T Yatsunenko, YA Ye, Z Yin, H Yip, K Youn, SW Yu, J Zelitch, S Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zivkovic, L AF Abazov, V. M. Abbott, B. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Ancu, L. S. Aoki, M. Arnoud, Y. Arov, M. Askew, A. Asman, B. Atramentov, O. Avila, C. BackusMayes, J. Badaud, F. Bagby, L. Baldin, B. Bandurin, D. V. Banerjee, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bazterra, V. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Bolton, T. A. Boos, E. E. Borissov, G. Bose, T. Brandt, A. Brandt, O. Brock, R. Brooijmans, G. Bross, A. Brown, D. Brown, J. Bu, X. B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burnett, T. H. Buszello, C. P. Calpas, B. Camacho-Perez, E. Carrasco-Lizarraga, M. A. Casey, B. C. K. Castilla-Valdez, H. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chandra, A. Chen, G. 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Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Measurement of the ratio of inclusive cross sections sigma(p(p)over-bar -> Z plus b-quark jet)/sigma(p(p)over-bar -> Z plus jet) at root s=1.96 TeV SO PHYSICAL REVIEW D LA English DT Article ID P(P)OVER-BAR COLLISIONS; SEARCH AB The ratio of the cross section for p (p) over bar interactions producing a Z boson and at least one b-quark jet to the inclusive Z + jet cross section is measured using 4.2 fb(-1) of p (p) over bar collisions collected with the D0 detector at the Fermilab Tevatron collider at root s = 1.96 TeV. The Z -> l(+) l- candidate events with at least one b jet are discriminated from Z + charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. 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S.; de Jong, S. J.; Filthaut, F.; Meijer, M. M.] Radboud Univ Nijmegen NIKHEF, Nijmegen, Netherlands. [Abazov, V. M.; Alexeev, G. D.; Kharzheev, Y. N.; Malyshev, V. L.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.] Joint Inst Nucl Res, Dubna, Russia. [Gavrilov, V.; Safronov, G.; Stolin, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Boos, E. E.; Bunichev, V.; Dudko, L. V.; Karmanov, D.; Kuzmin, V. A.; Merkin, M.; Perfilov, M.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Bezzubov, V. A.; Denisov, S. P.; Evdokimov, V. N.; Kozelov, A. V.; Lipaev, V. V.; Razumov, I.; Shchukin, A. A.; Stoyanova, D. A.; Vasilyev, I. A.] Inst High Energy Phys, Protvino, Russia. [Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Stockholm Univ, S-10691 Stockholm, Sweden. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Uppsala Univ, Uppsala, Sweden. [Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Love, P.; Ratoff, P. N.; Sopczak, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England. [Beuselinck, R.; Christoudias, T.; Davies, G.; Hays, J.; Jesik, R.; Osman, N.; Scanlon, T.; Vint, P.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Harder, K.; Head, T.; Owen, M.; Peters, K.; Peters, Y.; Rich, P.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA. [Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.; Wimpenny, S. J.] Univ Calif Riverside, Riverside, CA 92521 USA. [Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Cwiok, M.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Juste, A.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Adams, M.; Bazterra, V.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA. [Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA. [Evans, H.; Lammers, S.; Parua, N.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA. [Baringer, P.; Bean, A.; Carrasco-Lizarraga, M. A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T. A.; Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA. [Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Hesketh, G.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA. [Alton, A.; Herner, K.; Neal, H. A.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Brock, R.; Edmunds, D.; Fisher, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. D.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, P.; Hossain, S.; Jonsson, P.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Sosebee, M.; Spurlock, B.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Univ Buenos Aires, Buenos Aires, DF, Argentina. RI De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Alves, Gilvan/C-4007-2013; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias, Theodoros/E-7305-2015; Li, Liang/O-1107-2015; Fisher, Wade/N-4491-2013; Gutierrez, Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; bu, xuebing/D-1121-2012; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; Mercadante, Pedro/K-1918-2012; Yip, Kin/D-6860-2013; Wimpenny, Stephen/K-8848-2013 OI De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Christoudias, Theodoros/0000-0001-9050-3880; Li, Liang/0000-0001-6411-6107; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; Yip, Kin/0000-0002-8576-4311; Wimpenny, Stephen/0000-0003-0505-4908 FU DOE; NSF (USA); CEA; CNRS/IN2P3 (France); FASI; Rosatom; RFBR (Russia); CNPq; FAPERJ; FAPESP; FUNDUNESP (Brazil); DAE; DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF; KOSEF (Korea); CONICET; UBACyT (Argentina); FOM (The Netherlands); STFC; Royal Society (United Kingdom); MSMT; GACR (Czech Republic); CRC; NSERC (Canada); BMBF; DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); CAS; CNSF (China) FX We thank the staffs at Fermilab and collaborating institutions and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom, and RFBR (Russia); CNPq, FAPERJ, FAPESP, and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). We thank the author of MCFM for the help with useful discussion on the theoretical calculations. NR 27 TC 15 Z9 15 U1 1 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 EI 1550-2368 J9 PHYS REV D JI Phys. Rev. D PD FEB 28 PY 2011 VL 83 IS 3 AR 031105 DI 10.1103/PhysRevD.83.031105 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 727KM UT WOS:000287797900001 ER PT J AU Krein, G Thomas, AW Tsushima, K AF Krein, G. Thomas, A. W. Tsushima, K. TI J/Psi mass shift in nuclear matter SO PHYSICS LETTERS B LA English DT Article DE Mesons in nuclear matter; Mesic nuclei; Nuclear-bound quarkonium; Charmed mesons; Quark-meson coupling model ID PAIR-CREATION MODEL; QCD SUM-RULES; BOUND QUARKONIUM; CHARMONIUM; DISSOCIATION; MECHANISM; EXCHANGE; DECAYS AB The J/Psi mass shift in cold nuclear matter is computed using an effective Lagrangian approach. The mass shift is computed by evaluating D and D* meson loop contributions to the J/Psi self-energy employing medium-modified meson masses. The modification of the D and D* masses in nuclear matter is obtained using the quark-meson coupling model. The loop integrals are regularized with dipole form factors and the sensitivity of the results to the values of form-factor cutoff masses is investigated. The J/Psi mass shift arising from the modification of the D and D* loops at normal nuclear matter density is found to range from -16 MeV to -24 MeV under a wide variation of values of the cutoff masses. Experimental perspectives for the formation of a bound state of J/Psi to a nucleus are investigated. (c) 2011 Elsevier B.V. All rights reserved. C1 [Krein, G.] Univ Estadual Paulista, Inst Fis Teor, Sao Paulo, Brazil. [Thomas, A. W.] Univ Adelaide, CSSM, Sch Chem & Phys, Adelaide, SA 5005, Australia. [Tsushima, K.] EBAC Theory Ctr, Jefferson Lab, Newport News, VA 23606 USA. RP Krein, G (reprint author), Univ Estadual Paulista, Inst Fis Teor, Rua Dr Bento Teobaldo Ferraz,271 Bloco 2, Sao Paulo, Brazil. EM gkrein@ift.unesp.br; anthony.thomas@adelaide.edu.au; tsushima@jlab.org RI Krein, Gastao/C-1204-2012; Thomas, Anthony/G-4194-2012 OI Krein, Gastao/0000-0003-1713-8578; Thomas, Anthony/0000-0003-0026-499X FU CNPq (Brazilian agencie); FAPESP (Brazilian agencie); U.S. DOE [DE-AC05-06OR23177]; Australian Research Council [Australian Laureate Fellowship] FX G.K. thanks the Theory Center of the Jefferson Lab for hospitality and support during a visit when part of this work was done. The work of G.K. was partially financed by CNPq and FAPESP (Brazilian agencies). Notice: Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The U.S. Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce this manuscript for U.S. Government purposes. G.K. and K.T. would like to acknowledge the hospitality of the CSSM, University of Adelaide, where the final part of the calculation was carried out. This work was also supported by the Australian Research Council through the award of an Australian Laureate Fellowship to AWT. NR 48 TC 17 Z9 17 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD FEB 28 PY 2011 VL 697 IS 2 BP 136 EP 141 DI 10.1016/j.physletb.2011.01.037 PG 6 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 732KV UT WOS:000288184800007 ER PT J AU Oddone, P AF Oddone, Piermaria TI Life in the old dog yet SO NEW SCIENTIST LA English DT Editorial Material C1 Fermilab Natl Accelerator Lab, Batavia, IL USA. RP Oddone, P (reprint author), Fermilab Natl Accelerator Lab, Batavia, IL USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU REED BUSINESS INFORMATION LTD PI SUTTON PA QUADRANT HOUSE THE QUADRANT, SUTTON SM2 5AS, SURREY, ENGLAND SN 0262-4079 J9 NEW SCI JI New Sci. PD FEB 26 PY 2011 VL 209 IS 2801 BP 26 EP 27 DI 10.1016/S0262-4079(11)60440-5 PG 2 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 730OB UT WOS:000288042200016 ER PT J AU Welling, DT Jordanova, VK Zaharia, SG Glocer, A Toth, G AF Welling, D. T. Jordanova, V. K. Zaharia, S. G. Glocer, A. Toth, G. TI The effects of dynamic ionospheric outflow on the ring current SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID WEATHER MODELING FRAMEWORK; SHEET ION COMPOSITION; PLASMA SHEET; GEOSYNCHRONOUS ORBIT; ELECTRIC-FIELD; TAIL CURRENT; POLAR WIND; MAGNETOSPHERE; MHD; SPACE AB The importance of ionospheric O+ on the development of the storm time ring current is recognized but not well understood. The addition of this outflow in global MHD models has the potential to change the magnetic field configuration, particle densities and temperatures, and the convection electric field. This makes including heavy ion outflow in ring current simulations difficult, as this addition cannot be easily decoupled from a host of other changes. This study attempts to overcome this problem by using three coupled models, PWOM, RIM, and BATS-R-US, to drive a ring current model, RAM-SCB. The differences in drivers when outflow is included and is not included are compared to see how outflow changes ring current input. It is found that including this outflow reduces the convection electric field, lowers the plasma sheet number density and temperature, and increases the complexity of the plasma sheet ion composition both temporally and spatially. These changes cause an overall reduction in ring current energy density. Further simulations that attempt to isolate these effects find that the most important change in terms of ring current development is the drop in convection electric field. Local time dependencies of O+ injections are found to be nontrivial as well. Capturing all of these effects requires a whole system, first-principles approach. C1 [Welling, D. T.; Jordanova, V. K.; Zaharia, S. G.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Glocer, A.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Toth, G.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. RP Welling, DT (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM dwelling@lanl.gov; vania@lanl.gov; szaharia@lanl.gov; alex.glocer-1@nasa.gov; gtoth@umich.edu RI Glocer, Alex/C-9512-2012; Toth, Gabor/B-7977-2013; Welling, Daniel/C-1970-2013; feggans, john/F-5370-2012; OI Glocer, Alex/0000-0001-9843-9094; Toth, Gabor/0000-0002-5654-9823; Jordanova, Vania/0000-0003-0475-8743 FU U.S. Department of Energy; NASA [NNH09AL06I, NNH07AG24I]; NSF [ATM0902941, ATM0703210] FX The authors thank Aaron Ridley for providing the AMIE data used in this study. Dst data was provided by the World Data Center for Geomagnetism, Kyoto, and the four Dst observatories (Kakioka, Honolulu, San Juan, and Hermanus). Solar wind measurements are from the ACE SWEPAM and MAG instruments and were provided by the NASA GSFC Coordinated Data Analysis Web. Work at Los Alamos was conducted under the auspices of the U.S. Department of Energy, with partial support from the IGPP program and NASA Living With A Star grants NNH09AL06I and NNH07AG24I and NSF Geospace Environment Modeling grants ATM0902941 and ATM0703210. NR 67 TC 23 Z9 23 U1 0 U2 10 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 FEB 26 PY 2011 VL 116 AR A00J19 DI 10.1029/2010JA015642 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 727PE UT WOS:000287812600001 ER PT J AU Sakamoto, T Pal'Shin, V Yamaoka, K Ohno, M Sato, G Aptekar, R Barthelmy, SD Baumgartner, WH Cummings, JR Fenimore, EE Frederiks, D Gehrels, N Golenetskii, S Krimm, HA Markwardt, CB Onda, K Palmer, DM Parsons, AM Stamatikos, M Sugita, S Tashiro, M Tueller, J Ukwatta, TN AF Sakamoto, Takanori Pal'Shin, Valentin Yamaoka, Kazutaka Ohno, Masarlori Sato, Goro Aptekar, Rafail Barthelmy, Scott D. Baumgartner, Wayne H. Cummings, Jay R. Fenimore, Edward E. Frederiks, Dmitry Gehrels, Neil Golenetskii, Sergey Krimm, Hans A. Markwardt, Craig B. Onda, Kaori Palmer, David M. Parsons, Ann M. Stamatikos, Michael Sugita, Satoshi Tashiro, Makoto Tueller, Jack Ukwatta, Tilan N. TI Spectral Cross-Calibration of the Konus-Wind, the Suzaku/WAM, and the Swift/BAT Data Using Gamma-Ray Bursts SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE gamma rays: burst; gamma rays: observations; instrumentation: detectors ID ALERT TELESCOPE; ENERGY CORRELATIONS; PEAK ENERGY; CATALOG; AFTERGLOWS; DISCOVERY; MISSION; BAT AB We report on the spectral cross-calibration results of the Konus-Wind, the Suzaku/WAM, and the Swift/BAT instruments using simultaneously observed gamma-ray bursts (GRBs). This is the first attempt to use simultaneously observed GRBs as a spectral calibration source to understand systematic problems among the instruments. Based on these joint spectral fits, we find that (1) although a constant factor (a normalization factor) agrees within 20% among the instruments, the BAT constant factor shows a systematically smaller value by 10%-20% compared to that of Konus-Wind, (2) there is a systematic trend that the low-energy photon index becomes steeper by 0.1-0.2 and E-peak becomes systematically higher by 10%-20% when including the BAT data in the joint fits, and (3) the high-energy photon index agrees within 0.2 among the instruments. Our results show that cross-calibration based on joint spectral analysis is an important step to understanding the instrumental effects that could be affecting the scientific results from the GRB prompt emission data. C1 [Sakamoto, Takanori; Baumgartner, Wayne H.; Cummings, Jay R.; Krimm, Hans A.; Markwardt, Craig B.] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA. [Sakamoto, Takanori; Baumgartner, Wayne H.; Cummings, Jay R.] Univ Maryland, Joint Ctr Astrophys, Baltimore, MD 21250 USA. [Pal'Shin, Valentin; Aptekar, Rafail; Frederiks, Dmitry; Golenetskii, Sergey] Ioffe Phys Tech Inst, Expt Astrophys Lab, St Petersburg 194021, Russia. [Yamaoka, Kazutaka] Aoyama Gakuin Univ, Dept Phys & Math, Chuo Ku, Sagamihara, Kanagawa 2525258, Japan. [Ohno, Masarlori; Sato, Goro] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, ISAS JAXA, Chuo Ku, Sagamihara, Kanagawa 2298510, Japan. [Fenimore, Edward E.; Palmer, David M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Krimm, Hans A.] Univ Space Res Assoc, Columbia, MD 21044 USA. [Markwardt, Craig B.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA. [Stamatikos, Michael] Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA. [Ukwatta, Tilan N.] George Washington Univ, Dept Phys, Ctr Nucl Studies, Washington, DC 20052 USA. [Onda, Kaori; Tashiro, Makoto] Saitama Univ, Dept Phys, Sakura, Saitama 3388570, Japan. [Sugita, Satoshi] Nagoya Univ, EcoTopia Sci Inst, Furo, Nagoya 4648603, Japan. RP Sakamoto, T (reprint author), NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA. EM Taka.Sakamoto@nasa.gov RI Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012; Barthelmy, Scott/D-2943-2012; Parsons, Ann/I-6604-2012; Tashiro, Makoto/J-4562-2012; Frederiks, Dmitry/C-7612-2014; Pal'shin, Valentin/F-3973-2014; Aptekar, Raphail/B-3456-2015; Golenetskii, Sergey/B-3818-2015; XRAY, SUZAKU/A-1808-2009; OI Frederiks, Dmitry/0000-0002-1153-6340 FU Russian Space Agency; RFBR [09-02-00166a]; Ministry of Education, Culture, Sports, Science and Technology (MEXT) [19047001, 21740214] FX We would like to thank the anonymous referee for comments and suggestions that materially improved the paper. The Konus-Wind experiment is supported by the Russian Space Agency contract and RFBR grant 09-02-00166a. This research has made use of data obtained from the Suzaku satellite, a collaborative mission between the space agencies of Japan (JAXA) and the USA (NASA). It also has been supported in part by a Grant-in-Aid for Scientific Research (19047001 KY, 21740214 MO) of the Ministry of Education, Culture, Sports, Science and Technology (MEXT). NR 33 TC 12 Z9 12 U1 0 U2 0 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0004-6264 EI 2053-051X J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PD FEB 25 PY 2011 VL 63 IS 1 BP 215 EP 277 DI 10.1093/pasj/63.1.215 PG 63 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 733SS UT WOS:000288283700023 ER PT J AU Ravindranath, SP Henne, KL Thompson, DK Irudayaraj, J AF Ravindranath, Sandeep P. Henne, Kristene L. Thompson, Dorothea K. Irudayaraj, Joseph TI Surface-Enhanced Raman Imaging of Intracellular Bioreduction of Chromate in Shewanella oneidensis SO PLOS ONE LA English DT Article ID PSEUDOMONAS-PUTIDA; GOLD NANOPARTICLES; ESCHERICHIA-COLI; HEAVY-METALS; REDUCTION; MR-1; SCATTERING; GENOME; CHROMIUM; GROWTH AB This proposed research aims to use novel nanoparticle sensors and spectroscopic tools constituting surface-enhanced Raman spectroscopy (SERS) and Fluorescence Lifetime imaging (FLIM) to study intracellular chemical activities within single bioremediating microorganism. The grand challenge is to develop a mechanistic understanding of chromate reduction and localization by the remediating bacterium Shewanella oneidensis MR-1 by chemical and lifetime imaging. MR-1 has attracted wide interest from the research community because of its potential in reducing multiple chemical and metallic electron acceptors. While several biomolecular approaches to decode microbial reduction mechanisms exist, there is a considerable gap in the availability of sensor platforms to advance research from population-based studies to the single cell level. This study is one of the first attempts to incorporate SERS imaging to address this gap. First, we demonstrate that chromate-decorated nanoparticles can be taken up by cells using TEM and Fluorescence Lifetime imaging to confirm the internalization of gold nanoprobes. Second, we demonstrate the utility of a Raman chemical imaging platform to monitor chromate reduction and localization within single cells. Distinctive differences in Raman signatures of Cr(VI) and Cr(III) enabled their spatial identification within single cells from the Raman images. A comprehensive evaluation of toxicity and cellular interference experiments conducted revealed the inert nature of these probes and that they are non-toxic. Our results strongly suggest the existence of internal reductive machinery and that reduction occurs at specific sites within cells instead of at disperse reductive sites throughout the cell as previously reported. While chromate-decorated gold nanosensors used in this study provide an improved means for the tracking of specific chromate interactions within the cell and on the cell surface, we expect our single cell imaging tools to be extended to monitor the interaction of other toxic metal species. C1 [Ravindranath, Sandeep P.; Irudayaraj, Joseph] Purdue Univ, Birck Nanotechnol Ctr, Bindley Biosci Ctr, W Lafayette, IN 47907 USA. [Henne, Kristene L.] Argonne Natl Lab, Chicago, IL USA. [Thompson, Dorothea K.] Univ Tennessee, Dept Biol Sci, Knoxville, TN USA. RP Ravindranath, SP (reprint author), Purdue Univ, Birck Nanotechnol Ctr, Bindley Biosci Ctr, W Lafayette, IN 47907 USA. EM josephi@purdue.edu FU National Institutes of Health-National Institute of Environmental Health Sciences [R01 ES017066-02] FX Funding for this research was provided by National Institutes of Health-National Institute of Environmental Health Sciences R01 ES017066-02 award. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 46 TC 15 Z9 15 U1 1 U2 71 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD FEB 25 PY 2011 VL 6 IS 2 AR e16634 DI 10.1371/journal.pone.0016634 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 726YS UT WOS:000287764100007 PM 21364911 ER PT J AU Benson, ML Reetz, B Liaw, PK Reimers, W Choo, H Brown, DW Saleh, TA Klarstrom, DL AF Benson, M. L. Reetz, B. Liaw, P. K. Reimers, W. Choo, H. Brown, D. W. Saleh, T. A. Klarstrom, D. L. TI Phase-transformation and subgrain-deformation characteristics in a cobalt-based superalloy SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING LA English DT Article DE Strain-induced phase transformation; In situ neutron diffraction; Line-profile analysis; Stacking faults ID CYCLE FATIGUE BEHAVIOR; NEUTRON-DIFFRACTION; ULTIMET(R) ALLOY; IN-SITU; MARTENSITIC-TRANSFORMATION; TEMPERATURE EVOLUTION; RIETVELD REFINEMENT; SINGLE-CRYSTALS; STRAIN; DIFFRACTOMETER AB A complimentary set of experiments, in situ neutron diffraction and ex situ synchrotron X-ray diffraction, were used to study the phase-transformation and subgrain-deformation characteristics of a cobalt-based superalloy. The neutron diffraction indicated a strain-induced phase transformation in the cobalt-based superalloy under uniaxial tension and compression. The synchrotron X-ray diffraction revealed stacking-fault accumulation and twinning under the same loading conditions. The extent of transformation was found to be greater under tension than under compression. Tensile plastic strains below 2% were accommodated by the stacking-fault creation, while those greater than 2% were accommodated by the phase transformation. Twinning was found to be more active under compressive loading than under tensile loading. (C) 2010 Elsevier B.V. All rights reserved. C1 [Benson, M. L.; Liaw, P. K.; Choo, H.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Reetz, B.; Reimers, W.] Tech Univ Berlin, Inst Mat Sci & Technol, D-10587 Berlin, Germany. [Choo, H.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Brown, D. W.; Saleh, T. A.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. [Klarstrom, D. L.] Haynes Int Inc, Kokomo, IN 46904 USA. RP Liaw, PK (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Rm 427-B,Dougherty Eng Bldg, Knoxville, TN 37996 USA. EM pliaw@utk.edu RI Choo, Hahn/A-5494-2009; OI Choo, Hahn/0000-0002-8006-8907; Saleh, Tarik/0000-0003-2108-4293 FU National Science Foundation at The University of Tennessee [DMR-0231320, DGE-9987548, EEC-9527527, EEC-0203415, DMR-0909037, CMMI-0900271]; Tennessee Advanced Materials Laboratory FX The present research benefited from the use of the Los Alamos Neutron Science Center. The financial support of the National Science Foundation's (1) International Materials Institutes (IMI) Program under DMR-0231320, (2) Integrative Graduate Education and Research Training (IGERT) Program under DGE-9987548, (3) Combined Research and Curriculum Development (CRCD) Program under EEC-9527527 and EEC-0203415, and (4) DMR-0909037 and CMMI-0900271 at The University of Tennessee; with Dr. C. Huber, Dr. C.J. Van Hartesveldt, Dr. D. Dutta, Dr. W. Jennings, Dr. L Goldberg, Ms. M. Poats, Dr. A. Ardell, and Dr. C. V. Cooper as the Program Directors; is greatly appreciated. Additional funding for this project was gratefully received from the Tennessee Advanced Materials Laboratory, with Prof. E.W. Plummer as the Director. We very much appreciate Wei Wu's kind/great help on the manuscript. NR 34 TC 2 Z9 2 U1 2 U2 19 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0921-5093 J9 MAT SCI ENG A-STRUCT JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process. PD FEB 25 PY 2011 VL 528 IS 4-5 BP 1987 EP 1993 DI 10.1016/j.msea.2010.10.061 PG 7 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA 716UL UT WOS:000286998900010 ER PT J AU Kline, JL Glenzer, SH Olson, RE Suter, LJ Widmann, K Callahan, DA Dixit, SN Thomas, CA Hinkel, DE Williams, EA Moore, AS Celeste, J Dewald, E Hsing, WW Warrick, A Atherton, J Azevedo, S Beeler, R Berger, R Conder, A Divol, L Haynam, CA Kalantar, DH Kauffman, R Kyrala, GA Kilkenny, J Liebman, J Le Pape, S Larson, D Meezan, NB Michel, P Moody, J Rosen, MD Schneider, MB Van Wonterghem, B Wallace, RJ Young, BK Landen, OL MacGowan, BJ AF Kline, J. L. Glenzer, S. H. Olson, R. E. Suter, L. J. Widmann, K. Callahan, D. A. Dixit, S. N. Thomas, C. A. Hinkel, D. E. Williams, E. A. Moore, A. S. Celeste, J. Dewald, E. Hsing, W. W. Warrick, A. Atherton, J. Azevedo, S. Beeler, R. Berger, R. Conder, A. Divol, L. Haynam, C. A. Kalantar, D. H. Kauffman, R. Kyrala, G. A. Kilkenny, J. Liebman, J. Le Pape, S. Larson, D. Meezan, N. B. Michel, P. Moody, J. Rosen, M. D. Schneider, M. B. Van Wonterghem, B. Wallace, R. J. Young, B. K. Landen, O. L. MacGowan, B. J. TI Observation of High Soft X-Ray Drive in Large-Scale Hohlraums at the National Ignition Facility SO PHYSICAL REVIEW LETTERS LA English DT Article ID LASER-HEATED HOHLRAUMS; RADIATION DRIVE; PERFORMANCE; PLASMAS AB The first soft x-ray radiation flux measurements from hohlraums using both a 96 and a 192 beam configuration at the National Ignition Facility have shown high x-ray conversion efficiencies of similar to 85%-90%. These experiments employed gold vacuum hohlraums, 6.4 mm long and 3.55 mm in diameter, heated with laser energies between 150-635 kJ. The hohlraums reached radiation temperatures of up to 340 eV. These hohlraums for the first time reached coronal plasma conditions sufficient for two-electron processes and coronal heat conduction to be important for determining the radiation drive. C1 [Kline, J. L.; Kyrala, G. A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Glenzer, S. H.; Suter, L. J.; Widmann, K.; Callahan, D. A.; Dixit, S. N.; Thomas, C. A.; Hinkel, D. E.; Williams, E. A.; Celeste, J.; Dewald, E.; Hsing, W. W.; Warrick, A.; Atherton, J.; Azevedo, S.; Beeler, R.; Berger, R.; Conder, A.; Divol, L.; Haynam, C. A.; Kalantar, D. H.; Kauffman, R.; Liebman, J.; Le Pape, S.; Larson, D.; Meezan, N. B.; Michel, P.; Moody, J.; Rosen, M. D.; Schneider, M. B.; Van Wonterghem, B.; Wallace, R. J.; Young, B. K.; Landen, O. L.; MacGowan, B. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Olson, R. E.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Moore, A. S.] Atom Weap Estab, Aldermaston RG7 4PR, England. [Kilkenny, J.] Gen Atom, San Diego, CA 92121 USA. RP Kline, JL (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RI Michel, Pierre/J-9947-2012; OI Kline, John/0000-0002-2271-9919 FU NIF operations/laser team; U.S. DOE by LANL [DE-AC52-06NA25396]; LLNL [DE-AC5 2-07NA27344]; SNL [DE-AC04-94AL85000] FX We wish to thank the NIF operations/laser team for their support. This work was performed under the auspices of the U.S. DOE by LANL under contract DE-AC52-06NA25396, by LLNL under contract DE-AC5 2-07NA27344, and by SNL under contract DE-AC04-94AL85000. NR 26 TC 37 Z9 40 U1 0 U2 10 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 FEB 25 PY 2011 VL 106 IS 8 AR 085003 DI 10.1103/PhysRevLett.106.085003 PG 4 WC Physics, Multidisciplinary SC Physics GA 726OH UT WOS:000287732600002 PM 21405579 ER PT J AU Parra, MK Gee, S Mohandas, N Conboy, JG AF Parra, Marilyn K. Gee, Sherry Mohandas, Narla Conboy, John G. TI Efficient in Vivo Manipulation of Alternative Pre-mRNA Splicing Events Using Antisense Morpholinos in Mice SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID RESTORES DYSTROPHIN EXPRESSION; SPINAL MUSCULAR-ATROPHY; ERYTHROID-DIFFERENTIATION; PROTEIN 4.1R; REGULATORY ELEMENTS; GENE-EXPRESSION; CRITICAL EXON; MOTOR-NEURON; MOUSE MODEL; MDX MICE AB Mammalian pre-mRNA alternative splicing mechanisms are typically studied using artificial minigenes in cultured cells, conditions that may not accurately reflect the physiological context of either the pre-mRNA or the splicing machinery. Here, we describe a strategy to investigate splicing of normal endogenous full-length pre-mRNAs under physiological conditions in live mice. This approach employs antisense vivo-morpholinos (vMOs) to mask cis-regulatory sequences or to disrupt splicing factor expression, allowing functional evaluation of splicing regulation in vivo. We applied this strategy to gain mechanistic insight into alternative splicing events involving exons 2 and 16 (E2 and E16) that control the structure and function of cytoskeletal protein 4.1R. In several mouse tissues, inclusion of E16 was substantially inhibited by interfering with a splicing enhancer mechanism using a target protector morpholino that blocked Fox2-dependent splicing enhancers in intron 16 or a splice-blocking morpholino that disrupted Fox2 expression directly. For E2, alternative 3'-splice site choice is coordinated with upstream promoter use across a long 5'-intron such that E1A splices almost exclusively to the distal acceptor (E2dis). vMOs were used to test the in vivo relevance of a deep intron element previously proposed to determine use of E2dis via a two-step intrasplicing model. Two independent vMOs designed against this intronic regulatory element inhibited intrasplicing, robustly switching E1A splicing to the proximal acceptor (E2prox). This finding strongly supports the in vivo physiological relevance of intrasplicing. vMOs represent a powerful tool for alternative splicing studies in vivo and may facilitate exploration of alternative splicing networks in vivo. C1 [Parra, Marilyn K.; Gee, Sherry; Conboy, John G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Mohandas, Narla] New York Blood Ctr, New York, NY 10065 USA. RP Conboy, JG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, 1 Cyclotron Rd,Mailstop 84-171, Berkeley, CA 94720 USA. EM jgconboy@lbl.gov FU National Institutes of Health [HL45182, DK32094]; Office of Science, Office of Biological and Environmental Research, United States Department of Energy [DE-AC02-05CH11231] FX This work was supported, in whole or in part, by National Institutes of Health Grants HL45182 (to J. G. C.) and DK32094 (to N. M.). This work was also supported by the Director, Office of Science, Office of Biological and Environmental Research, United States Department of Energy under Contract DE-AC02-05CH11231. NR 43 TC 17 Z9 17 U1 0 U2 7 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 FEB 25 PY 2011 VL 286 IS 8 BP 6033 EP 6039 DI 10.1074/jbc.M110.158154 PG 7 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 723AB UT WOS:000287476400011 PM 21156798 ER PT J AU Hernandez, JA Phillips, AH Erbil, WK Zhao, DH Demuez, M Zeymer, C Pelton, JG Wemmer, DE Rubio, LM AF Hernandez, Jose A. Phillips, Aaron H. Erbil, W. Kaya Zhao, Dehua Demuez, Marie Zeymer, Cathleen Pelton, Jeffery G. Wemmer, David E. Rubio, Luis M. TI A Sterile alpha-Motif Domain in NafY Targets Apo-NifDK for Iron-Molybdenum Cofactor Delivery via a Tethered Domain SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID NITROGENASE MOFE PROTEIN; IN-VITRO SYNTHESIS; AZOTOBACTER-VINELANDII; KLEBSIELLA-PNEUMONIAE; APODINITROGENASE; PURIFICATION; CLUSTER; DINITROGENASE; BIOSYNTHESIS; SPECTROSCOPY AB NafY participates in the final steps of nitrogenase maturation, having a dual role as iron-molybdenum cofactor (FeMo-co) carrier and as chaperone to the FeMo-co-deficient apo-NifDK (apo-dinitrogenase). NafY contains an N-terminal domain of unknown function (n-NafY) and a C-terminal domain (core-NafY) necessary for FeMo-co binding. We show here that n-NafY and core-NafY have very weak interactions in intact NafY. The NMR structure of n-NafY reveals that it belongs to the sterile alpha-motif (SAM) family of domains, which are frequently involved in protein-protein interactions. The presence of a SAM domain in NafY was unexpected and could not be inferred from its amino acid sequence. Although SAM domains are very commonly found in eukaryotic proteins, they have rarely been identified in prokaryotes. The n-NafY SAM domain binds apo-NifDK. As opposed to full-length NafY, n-NafY impaired FeMo-co insertion when present in molar excess relative to FeMo-co and apo-NifDK. The implications of these observations are discussed to offer a plausible mechanism of FeMo-co insertion. NafY domain structure, molecular tumbling, and interdomain motion, as well as NafY interaction with apo-NifDK are consistent with the function of NafY in FeMo-co delivery to apo-NifDK. C1 [Phillips, Aaron H.; Erbil, W. Kaya; Zeymer, Cathleen; Wemmer, David E.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Phillips, Aaron H.; Erbil, W. Kaya; Zeymer, Cathleen; Pelton, Jeffery G.; Wemmer, David E.] Univ Calif Berkeley, Inst QB3, Berkeley, CA 94720 USA. [Phillips, Aaron H.; Erbil, W. Kaya; Zeymer, Cathleen; Pelton, Jeffery G.; Wemmer, David E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Phys Biosci, Berkeley, CA 94720 USA. Midwestern Univ Arizona, Arizona Coll Osteopath Med, Dept Biochem, Glendale, AZ 85308 USA. [Zhao, Dehua] Univ Calif San Francisco, Dept Pharmaceut Chem, San Francisco, CA 94158 USA. [Rubio, Luis M.] Inst Madrileno Estudios Avanzados IMDEA Energia, Madrid 28223, Spain. RP Wemmer, DE (reprint author), Univ Calif Berkeley, Dept Chem, MC-1460, Berkeley, CA 94720 USA. EM dewemmer@lbl.gov; luis.rubio@imdea.org RI Rubio, Luis/B-5827-2009; Demuez, Marie/L-1134-2014 OI Rubio, Luis/0000-0003-1596-2475; Demuez, Marie/0000-0002-8702-1001 FU National Institutes of Health [GM-35332]; NIGMS [62163]; European Research Council [205442]; Ministerio de Ciencia e Innovacion de Espana [BIO2009-12661]; Midwestern University FX This work was supported, in whole or in part, by National Institutes of Health Grant GM-35332 (to Paul Ludden) and Grant 62163 from NIGMS (to D. E. W.). This work was also supported by European Research Council Starting Grant 205442 and Ministerio de Ciencia e Innovacion de Espana Grant BIO2009-12661 (to L. M. R.) and by Midwestern University intramural funds (to J. A. H.). NR 34 TC 3 Z9 3 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 FEB 25 PY 2011 VL 286 IS 8 BP 6321 EP 6328 DI 10.1074/jbc.M110.168732 PG 8 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 723AB UT WOS:000287476400042 PM 21156797 ER PT J AU Balendiran, GK Sawaya, MR Schwarz, FP Ponniah, G Cuckovich, R Verma, M Cascio, D AF Balendiran, Ganesaratnam K. Sawaya, Michael R. Schwarz, Frederick P. Ponniah, Gomathinayagam Cuckovich, Richard Verma, Malkhey Cascio, Duilio TI The Role of Cys-298 in Aldose Reductase Function SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID DIABETIC COMPLICATIONS; HUMAN-ERYTHROCYTE; BINDING-SITE; ACTIVATION; MECHANISM; INVOLVEMENT; INHIBITION; CONSTANTS; SORBITOL; PATHWAY AB Diabetic tissues are enriched in an "activated" form of human aldose reductase (hAR), a NADPH-dependent oxidoreductase involved in sugar metabolism. Activated hAR has reduced sensitivity to potential anti-diabetes drugs. The C298S mutant of hAR reproduces many characteristics of activated hAR, although it differs from wild-type hAR only by the replacement of a single sulfur atom with oxygen. Isothermal titration calorimetry measurements revealed that the binding constant of NADPH to the C298S mutant is decreased by a factor of two, whereas that of NADP(+) remains the same. Similarly, the heat capacity change for the binding of NADPH to the C298S mutant is twice increased; however, there is almost no difference in the heat capacity change for binding of the NADP(+) to the C298S. X-ray crystal structures of wild-type and C298S hAR reveal that the side chain of residue 298 forms a gate to the nicotinamide pocket and is more flexible for cysteine compared with serine. Unlike Cys-298, Ser-298 forms a hydrogen bond with Tyr-209 across the nicotinamide ring, which inhibits movements of the nicotinamide. We hypothesize that the increased polarity of the oxidized nicotinamide weakens the hydrogen bond potentially formed by Ser-298, thus, accounting for the relatively smaller effect of the mutation on NADP(+) binding. The effects of the mutant on catalytic rate constants and binding constants for various substrates are the same as for activated hAR. It is, thus, further substantiated that activated hAR arises from oxidative modification of Cys-298, a residue near the nicotinamide binding pocket. C1 [Balendiran, Ganesaratnam K.; Cuckovich, Richard] Youngstown State Univ, Dept Chem, Youngstown, OH 44555 USA. [Sawaya, Michael R.; Cascio, Duilio] UCLA DOE, Los Angeles, CA 90095 USA. [Schwarz, Frederick P.] Natl Inst Stand & Technol, Ctr Adv Res Biotechnol, Rockville, MD 20850 USA. [Ponniah, Gomathinayagam] Merck & Co Inc, Lebanon, NH 03766 USA. [Verma, Malkhey] Univ Manchester, Manchester Interdisciplinary Bioctr, Manchester M1 7DN, Lancs, England. RP Balendiran, GK (reprint author), Youngstown State Univ, Dept Chem, WBSH 6017,1 Univ Plaza, Youngstown, OH 44555 USA. EM pl_note@yahoo.com FU Office of Biological and Environmental Research, United States Department of Energy; National Institutes of Health, National Center for Research Resources, Biomedical; National Institute of General Medical Sciences; National Institute of Diabetes and Digestive and Kidney Diseases [DK085496] FX We thank David Eisenberg and Todd Yeates for use of their facilities, Peter Kasvinsky and the Youngstown State University Graduate School, for encouragement and support the staff at Synchrotron Radiation Laboratory beamline 9-1 and Advanced Light Source beamline 8.2.2 for expert assistance, and Dino Moras and Alberto Podjarny for the gift of the His-tag recombinant hAR overexpression cells. Data collection facilities at the Stanford Synchrotron Radiation Laboratory are funded by The Office of Biological and Environmental Research, United States Department of Energy, the National Institutes of Health, National Center for Research Resources, Biomedical, and the National Institute of General Medical Sciences.; This study was supported by Grant DK085496 from the National Institute of Diabetes and Digestive and Kidney Diseases. NR 39 TC 8 Z9 8 U1 3 U2 7 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 FEB 25 PY 2011 VL 286 IS 8 BP 6336 EP 6344 DI 10.1074/jbc.M110.154195 PG 9 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 723AB UT WOS:000287476400044 PM 21084309 ER PT J AU Wellhauser, L Luna-Chavez, C D'Antonio, C Tainer, J Bear, CE AF Wellhauser, Leigh Luna-Chavez, Cesar D'Antonio, Christina Tainer, John Bear, Christine E. TI ATP Induces Conformational Changes in the Carboxyl-terminal Region of ClC-5 SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID NUCLEOTIDE-BINDING DOMAIN; X-RAY-SCATTERING; CHLORIDE CHANNEL; DENTS-DISEASE; CYTOPLASMIC DOMAIN; ADENINE-NUCLEOTIDES; CYSTIC-FIBROSIS; MOLECULAR-BASIS; P-GLYCOPROTEIN; TRANSPORTER AB ATP binding enhances the activity of ClC-5, the transporter mutated in Dent disease, a disease affecting the renal proximal tubule. Previously, the ATP binding site was revealed in x-ray crystal structures of the cytoplasmic region of this membrane protein. Disruption of this site by mutagenesis (Y617A-ClC-5) reduced the functional expression and ATP-dependent regulation of the full-length transporter in Xenopus oocytes. However, insight into the conformational changes underlying ATP-dependent regulation is lacking. Here, we show that ATP binding induces a change in protein conformation. Specifically, small angle x-ray scattering experiments indicate that ATP binding promotes a clamp-like closure of the isolated ClC-5 carboxyl-terminal region. Limited proteolysis studies show that ATP binding induces conformational compaction of the carboxyl-terminal region in the intact membrane protein as well. In the context of fibroblasts and proximal tubule epithelial cells, disruption of the ATP binding site in full-length ClC-5 (Y617A-ClC-5) led to a defect in processing and trafficking out of the endoplasmic reticulum. These latter findings account for the decrease in functional expression previously reported for this ATP-binding mutant and prompt future study of a model whereby conformational compaction caused by ATP binding promotes biosynthetic maturation. C1 Hosp Sick Children, Res Inst, Programme Mol Struct & Funct, Toronto, ON M5G 1X8, Canada. [Wellhauser, Leigh; Bear, Christine E.] Univ Toronto, Fac Med, Dept Biochem, Toronto, ON M5S 1A8, Canada. [Luna-Chavez, Cesar; Tainer, John] Univ Calif Berkeley, Lawrence Berkeley Natl Lib, Berkeley, CA 94720 USA. [Tainer, John] Scripps Res Inst, La Jolla, CA 92037 USA. Skaggs Inst Chem Biol, Dept Mol Biol, La Jolla, CA 92037 USA. [D'Antonio, Christina; Bear, Christine E.] Univ Toronto, Dept Physiol, Toronto, ON M5S 1A8, Canada. RP Bear, CE (reprint author), 555 Univ Ave, Toronto, ON M5S 1X8, Canada. EM bear@sickkids.on.ca FU Kidney Foundation of Canada; Natural Sciences and Engineering Research Council of Canada; U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by a grant from the Kidney Foundation of Canada (to C.E.B.) and a postgraduate studentship from the Natural Sciences and Engineering Research Council of Canada (to L.W.). Support for advancement of SAXS technologies at the Lawrence Berkeley National Laboratory SIBYLS beamline came from the Integrated Diffraction Analysis Technologies program under Contract DE-AC02-05CH11231 with the U.S. Department of Energy. NR 47 TC 9 Z9 9 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 FEB 25 PY 2011 VL 286 IS 8 BP 6733 EP 6741 DI 10.1074/jbc.M110.175877 PG 9 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 723AB UT WOS:000287476400080 PM 21173145 ER PT J AU Glenzer, SH MacGowan, BJ Meezan, NB Adams, PA Alfonso, JB Alger, ET Alherz, Z Alvarez, LF Alvarez, SS Amick, PV Andersson, KS Andrews, SD Antonini, GJ Arnold, PA Atkinson, DP Auyang, L Azevedo, SG Balaoing, BNM Baltz, JA Barbosa, F Bardsley, GW Barker, DA Barnes, AI Baron, A Beeler, RG Beeman, BV Belk, LR Bell, JC Bell, PM Berger, RL Bergonia, MA Bernardez, LJ Berzins, LV Bettenhausen, RC Bezerides, L Bhandarkar, SD Bishop, CL Bond, EJ Bopp, DR Borgman, JA Bower, JR Bowers, GA Bowers, MW Boyle, DT Bradley, DK Bragg, JL Braucht, J Brinkerhoff, DL Browning, DF Brunton, GK Burkhart, SC Burns, SR Burns, KE Burr, B Burrows, LM Butlin, RK Cahayag, NJ Callahan, DA Cardinale, PS Carey, RW Carlson, JW Casey, AD Castro, C Celeste, JR Chakicherla, AY Chambers, FW Chan, C Chandrasekaran, H Chang, C Chapman, RF Charron, K Chen, Y Christensen, MJ Churby, AJ Clancy, TJ Cline, BD Clowdus, LC Cocherell, DG Coffield, FE Cohen, SJ Costa, RL Cox, JR Curnow, GM Dailey, MJ Danforth, PM Darbee, R Datte, PS Davis, JA Deis, GA Demaret, RD Dewald, EL Di Nicola, P Di Nicola, JM Divol, L Dixit, S Dobson, DB Doppner, T Driscoll, JD Dugorepec, J Duncan, JJ Dupuy, PC Dzenitis, EG Eckart, MJ Edson, SL Edwards, GJ Edwards, MJ Edwards, OD Edwards, PW Ellefson, JC Ellerbee, CH Erbert, GV Estes, CM Fabyan, WJ Fallejo, RN Fedorov, M Felker, B Fink, JT Finney, MD Finnie, LF Fischer, MJ Fisher, JM Fishler, BT Florio, JW Forsman, A Foxworthy, CB Franks, RM Frazier, T Frieder, G Fung, T Gawinski, GN Gibson, CR Giraldez, E Glenn, SM Golick, BP Gonzales, H Gonzales, SA Gonzalez, MJ Griffin, KL Grippen, J Gross, SM Gschweng, PH Gururangan, G Gu, K Haan, SW Hahn, SR Haid, BJ Hamblen, JE Hammel, BA Hamza, AV Hardy, DL Hart, DR Hartley, RG Haynam, CA Heestand, GM Hermann, MR Hermes, GL Hey, DS Hibbard, RL Hicks, DG Hinkel, DE Hipple, DL Hitchcock, JD Hodtwalker, DL Holder, JP Hollis, JD Holtmeier, GM Huber, SR Huey, AW Hulsey, DN Hunter, SL Huppler, TR Hutton, MS Izumi, N Jackson, JL Jackson, MA Jancaitis, KS Jedlovec, DR Johnson, B Johnson, MC Johnson, T Johnston, MP Jones, OS Kalantar, DH Kamperschroer, JH Kauffman, RL Keating, GA Kegelmeyer, LM Kenitzer, SL Kimbrough, JR King, K Kirkwood, RK Klingmann, JL Knittel, KM Kohut, TR Koka, KG Kramer, SW Krammen, JE Krauter, KG Krauter, GW Krieger, EK Kroll, JJ La Fortune, KN Lagin, LJ Lakamsani, VK Landen, OL Lane, SW Langdon, AB Langer, SH Lao, N Larson, DW Latray, D Lau, GT Le Pape, S Lechleiter, BL Lee, Y Lee, TL Li, J Liebman, JA Lindl, JD Locke, SF Loey, HK London, RA Lopez, FJ Lord, DM Lowe-Webb, RR Lown, JG Ludwigsen, AP Lum, NW Lyons, RR Ma, T MacKinnon, AJ Magat, MD Maloy, DT Malsbury, TN Markham, G Marquez, RM Marsh, AA Marshall, CD Marshall, SR Maslennikov, IL Mathisen, DG Mauger, GJ Mauvais, MY McBride, JA McCarville, T McCloud, JB McGrew, A McHale, B MacPhee, AG Meeker, JF Merill, JS Mertens, EP Michel, PA Miller, MG Mills, T Milovich, JL Miramontes, R Montesanti, RC Montoya, MM Moody, J Moody, JD Moreno, KA Morris, J Morriston, KM Nelson, JR Neto, M Neumann, JD Ng, E Ngo, QM Olejniczak, BL Olson, RE Orsi, NL Owens, MW Padilla, EH Pannell, TM Parham, TG Patterson, RW Pavel, G Prasad, RR Pendlton, D Penko, FA Pepmeier, BL Petersen, DE Phillips, TW Pigg, D Piston, KW Pletcher, KD Powell, CL Radousky, HB Raimondi, BS Ralph, JE Rampke, RL Reed, RK Reid, WA Rekow, VV Reynolds, JL Rhodes, JJ Richardson, MJ Rinnert, RJ Riordan, BP Rivenes, AS Rivera, AT Roberts, CJ Robinson, JA Robinson, RB Robison, SR Rodriguez, OR Rogers, SP Rosen, MD Ross, GF Runkel, M Runtal, AS Sacks, RA Sailors, SF Salmon, JT Salmonson, JD Saunders, RL Schaffer, JR Schindler, TM Schmitt, MJ Schneider, MB Segraves, KS Shaw, MJ Sheldrick, ME Shelton, RT Shiflett, MK Shiromizu, SJ Shor, M Silva, LL Silva, SA Skulina, KM Smauley, DA Smith, BE Smith, LK Solomon, AL Sommer, S Soto, JG Spafford, NI Speck, DE Springer, PT Stadermann, M Stanley, F Stone, TG Stout, EA Stratton, PL Strausser, RJ Suter, LJ Sweet, W Swisher, MF Tappero, JD Tassano, JB Taylor, JS Tekle, EA Thai, C Thomas, CA Thomas, A Throop, AL Tietbohl, GL Tillman, JM Town, RPJ Townsend, SL Tribbey, KL Trummer, D Truong, J Vaher, J Valadez, M Van Arsdall, P Van Prooyen, AJ de Dios, EOV Vergino, MD Vernon, SP Vickers, JL Villanueva, GT Vitalich, MA Vonhof, SA Wade, FE Wallace, RJ Warren, CT Warrick, AL Watkins, J Weaver, S Wegner, PJ Weingart, MA Wen, J White, KS Whitman, PK Widmann, K Widmayer, CC Wilhelmsen, K Williams, EA Williams, WH Willis, L Wilson, EF Wilson, BA Witte, MC Work, K Yang, PS Young, BK Youngblood, KP Zacharias, RA Zaleski, T Zapata, PG Zhang, H Zielinski, JS Kline, JL Kyrala, GA Niemann, C Kilkenny, JD Nikroo, A Van Wonterghem, BM Atherton, LJ Moses, EI AF Glenzer, S. H. MacGowan, B. J. Meezan, N. B. Adams, P. A. Alfonso, J. B. Alger, E. T. Alherz, Z. Alvarez, L. F. Alvarez, S. S. Amick, P. V. Andersson, K. S. Andrews, S. D. Antonini, G. J. Arnold, P. A. Atkinson, D. P. Auyang, L. Azevedo, S. G. Balaoing, B. N. M. Baltz, J. A. Barbosa, F. Bardsley, G. W. Barker, D. A. Barnes, A. I. Baron, A. Beeler, R. G. Beeman, B. V. Belk, L. R. Bell, J. C. Bell, P. M. Berger, R. L. Bergonia, M. A. Bernardez, L. J. Berzins, L. V. Bettenhausen, R. C. Bezerides, L. Bhandarkar, S. D. Bishop, C. L. Bond, E. J. Bopp, D. R. Borgman, J. A. Bower, J. R. Bowers, G. A. Bowers, M. W. Boyle, D. T. Bradley, D. K. Bragg, J. L. Braucht, J. Brinkerhoff, D. L. Browning, D. F. Brunton, G. K. Burkhart, S. C. Burns, S. R. Burns, K. E. Burr, B. Burrows, L. M. Butlin, R. K. Cahayag, N. J. Callahan, D. A. Cardinale, P. S. Carey, R. W. Carlson, J. W. Casey, A. D. Castro, C. Celeste, J. R. Chakicherla, A. Y. Chambers, F. W. Chan, C. Chandrasekaran, H. Chang, C. Chapman, R. F. Charron, K. Chen, Y. Christensen, M. J. Churby, A. J. Clancy, T. J. Cline, B. D. Clowdus, L. C. Cocherell, D. G. Coffield, F. E. Cohen, S. J. Costa, R. L. Cox, J. R. Curnow, G. M. Dailey, M. J. Danforth, P. M. Darbee, R. Datte, P. S. Davis, J. A. Deis, G. A. Demaret, R. D. Dewald, E. L. Di Nicola, P. Di Nicola, J. M. Divol, L. Dixit, S. Dobso, D. B. Doppner, T. Driscoll, J. D. Dugorepec, J. Duncan, J. J. Dupuy, P. C. Dzenitis, E. G. Eckart, M. J. Edson, S. L. Edwards, G. J. Edwards, M. J. Edwards, O. D. Edwards, P. W. Ellefson, J. C. Ellerbee, C. H. Erbert, G. V. Estes, C. M. Fabyan, W. J. Fallejo, R. N. Fedorov, M. Felker, B. Fink, J. T. Finney, M. D. Finnie, L. F. Fischer, M. J. Fisher, J. M. Fishler, B. T. Florio, J. W. Forsman, A. Foxworthy, C. B. Franks, R. M. Frazier, T. Frieder, G. Fung, T. Gawinski, G. N. Gibson, C. R. Giraldez, E. Glenn, S. M. Golick, B. P. Gonzales, H. Gonzales, S. A. Gonzalez, M. J. Griffin, K. L. Grippen, J. Gross, S. M. Gschweng, P. H. Gururangan, G. Gu, K. Haan, S. W. Hahn, S. R. Haid, B. J. Hamblen, J. E. Hammel, B. A. Hamza, A. V. Hardy, D. L. Hart, D. R. Hartley, R. G. Haynam, C. A. Heestand, G. M. Hermann, M. R. Hermes, G. L. Hey, D. S. Hibbard, R. L. Hicks, D. G. Hinkel, D. E. Hipple, D. L. Hitchcock, J. D. Hodtwalker, D. L. Holder, J. P. Hollis, J. D. Holtmeier, G. M. Huber, S. R. Huey, A. W. Hulsey, D. N. Hunter, S. L. Huppler, T. R. Hutton, M. S. Izumi, N. Jackson, J. L. Jackson, M. A. Jancaitis, K. S. Jedlovec, D. R. Johnson, B. Johnson, M. C. Johnson, T. Johnston, M. P. Jones, O. S. Kalantar, D. H. Kamperschroer, J. H. Kauffman, R. L. Keating, G. A. Kegelmeyer, L. M. Kenitzer, S. L. Kimbrough, J. R. King, K. Kirkwood, R. K. Klingmann, J. L. Knittel, K. M. Kohut, T. R. Koka, K. G. Kramer, S. W. Krammen, J. E. Krauter, K. G. Krauter, G. W. Krieger, E. K. Kroll, J. J. La Fortune, K. N. Lagin, L. J. Lakamsani, V. K. Landen, O. L. Lane, S. W. Langdon, A. B. Langer, S. H. Lao, N. Larson, D. W. Latray, D. Lau, G. T. Le Pape, S. Lechleiter, B. L. Lee, Y. Lee, T. L. Li, J. Liebman, J. A. Lindl, J. D. Locke, S. F. Loey, H. K. London, R. A. Lopez, F. J. Lord, D. M. Lowe-Webb, R. R. Lown, J. G. Ludwigsen, A. P. Lum, N. W. Lyons, R. R. Ma, T. MacKinnon, A. J. Magat, M. D. Maloy, D. T. Malsbury, T. N. Markham, G. Marquez, R. M. Marsh, A. A. Marshall, C. D. Marshall, S. R. Maslennikov, I. L. Mathisen, D. G. Mauger, G. J. Mauvais, M. -Y. McBride, J. A. McCarville, T. McCloud, J. B. McGrew, A. McHale, B. MacPhee, A. G. Meeker, J. F. Merill, J. S. Mertens, E. P. Michel, P. A. Miller, M. G. Mills, T. Milovich, J. L. Miramontes, R. Montesanti, R. C. Montoya, M. M. Moody, J. Moody, J. D. Moreno, K. A. Morris, J. Morriston, K. M. Nelson, J. R. Neto, M. Neumann, J. D. Ng, E. Ngo, Q. M. Olejniczak, B. L. Olson, R. E. Orsi, N. L. Owens, M. W. Padilla, E. H. Pannell, T. M. Parham, T. G. Patterson, R. W., Jr. Pavel, G. Prasad, R. R. Pendlton, D. Penko, F. A. Pepmeier, B. L. Petersen, D. E. Phillips, T. W. Pigg, D. Piston, K. W. Pletcher, K. D. Powell, C. L. Radousky, H. B. Raimondi, B. S. Ralph, J. E. Rampke, R. L. Reed, R. K. Reid, W. A. Rekow, V. V. Reynolds, J. L. Rhodes, J. J. Richardson, M. J. Rinnert, R. J. Riordan, B. P. Rivenes, A. S. Rivera, A. T. Roberts, C. J. Robinson, J. A. Robinson, R. B. Robison, S. R. Rodriguez, O. R. Rogers, S. P. Rosen, M. D. Ross, G. F. Runkel, M. Runtal, A. S. Sacks, R. A. Sailors, S. F. Salmon, J. T. Salmonson, J. D. Saunders, R. L. Schaffer, J. R. Schindler, T. M. Schmitt, M. J. Schneider, M. B. Segraves, K. S. Shaw, M. J. Sheldrick, M. E. Shelton, R. T. Shiflett, M. K. Shiromizu, S. J. Shor, M. Silva, L. L. Silva, S. A. Skulina, K. M. Smauley, D. A. Smith, B. E. Smith, L. K. Solomon, A. L. Sommer, S. Soto, J. G. Spafford, N. I. Speck, D. E. Springer, P. T. Stadermann, M. Stanley, F. Stone, T. G. Stout, E. A. Stratton, P. L. Strausser, R. J. Suter, L. J. Sweet, W. Swisher, M. F. Tappero, J. D. Tassano, J. B. Taylor, J. S. Tekle, E. A. Thai, C. Thomas, C. A. Thomas, A. Throop, A. L. Tietbohl, G. L. Tillman, J. M. Town, R. P. J. Townsend, S. L. Tribbey, K. L. Trummer, D. Truong, J. Vaher, J. Valadez, M. Van Arsdall, P. Van Prooyen, A. J. de Dios, E. O. Vergel Vergino, M. D. Vernon, S. P. Vickers, J. L. Villanueva, G. T. Vitalich, M. A. Vonhof, S. A. Wade, F. E. Wallace, R. J. Warren, C. T. Warrick, A. L. Watkins, J. Weaver, S. Wegner, P. J. Weingart, M. A. Wen, J. White, K. S. Whitman, P. K. Widmann, K. Widmayer, C. C. Wilhelmsen, K. Williams, E. A. Williams, W. H. Willis, L. Wilson, E. F. Wilson, B. A. Witte, M. C. Work, K. Yang, P. S. Young, B. K. Youngblood, K. P. Zacharias, R. A. Zaleski, T. Zapata, P. G. Zhang, H. Zielinski, J. S. Kline, J. L. Kyrala, G. A. Niemann, C. Kilkenny, J. D. Nikroo, A. Van Wonterghem, B. M. Atherton, L. J. Moses, E. I. TI Demonstration of Ignition Radiation Temperatures in Indirect-Drive Inertial Confinement Fusion Hohlraums SO PHYSICAL REVIEW LETTERS LA English DT Article ID LASER PERFORMANCE; PHYSICS BASIS; FACILITY; SYMMETRY; PLASMAS; TIME; TARGETS; DESIGN AB We demonstrate the hohlraum radiation temperature and symmetry required for ignition-scale inertial confinement fusion capsule implosions. Cryogenic gas-filled hohlraums with 2.2 mm-diameter capsules are heated with unprecedented laser energies of 1.2 MJ delivered by 192 ultraviolet laser beams on the National Ignition Facility. Laser backscatter measurements show that these hohlraums absorb 87% to 91% of the incident laser power resulting in peak radiation temperatures of T(RAD) = 300 eV and a symmetric implosion to a 100 mu m diameter hot core. C1 [Glenzer, S. H.; MacGowan, B. J.; Meezan, N. B.; Adams, P. A.; Alfonso, J. B.; Alger, E. T.; Alherz, Z.; Alvarez, L. F.; Alvarez, S. S.; Amick, P. V.; Andersson, K. S.; Andrews, S. D.; Antonini, G. J.; Arnold, P. A.; Atkinson, D. P.; Auyang, L.; Azevedo, S. G.; Balaoing, B. N. M.; Baltz, J. A.; Barbosa, F.; Bardsley, G. W.; Barker, D. A.; Barnes, A. I.; Baron, A.; Beeler, R. G.; Beeman, B. V.; Belk, L. R.; Bell, J. C.; Bell, P. M.; Berger, R. L.; Bergonia, M. A.; Bernardez, L. J.; Berzins, L. V.; Bettenhausen, R. C.; Bezerides, L.; Bhandarkar, S. D.; Bishop, C. L.; Bond, E. J.; Bopp, D. R.; Borgman, J. A.; Bower, J. R.; Bowers, G. A.; Bowers, M. W.; Boyle, D. T.; Bradley, D. K.; Bragg, J. L.; Braucht, J.; Brinkerhoff, D. L.; Browning, D. F.; Brunton, G. K.; Burkhart, S. C.; Burns, S. R.; Burns, K. E.; Burr, B.; Burrows, L. M.; Butlin, R. K.; Cahayag, N. J.; Callahan, D. A.; Cardinale, P. S.; Carey, R. W.; Carlson, J. W.; Casey, A. D.; Castro, C.; Celeste, J. R.; Chakicherla, A. Y.; Chambers, F. W.; Chan, C.; Chandrasekaran, H.; Chang, C.; Chapman, R. F.; Charron, K.; Chen, Y.; Christensen, M. J.; Churby, A. J.; Clancy, T. J.; Cline, B. D.; Clowdus, L. C.; Cocherell, D. G.; Coffield, F. E.; Cohen, S. J.; Costa, R. L.; Cox, J. R.; Curnow, G. M.; Dailey, M. J.; Danforth, P. M.; Darbee, R.; Datte, P. S.; Davis, J. A.; Deis, G. A.; Demaret, R. D.; Dewald, E. L.; Di Nicola, P.; Di Nicola, J. M.; Divol, L.; Dixit, S.; Doppner, T.; Driscoll, J. D.; Dugorepec, J.; Duncan, J. J.; Dupuy, P. C.; Dzenitis, E. G.; Eckart, M. J.; Edson, S. L.; Edwards, G. J.; Edwards, M. J.; Edwards, O. D.; Edwards, P. W.; Ellefson, J. C.; Ellerbee, C. H.; Erbert, G. V.; Estes, C. M.; Fabyan, W. J.; Fallejo, R. N.; Fedorov, M.; Felker, B.; Fink, J. T.; Finney, M. D.; Finnie, L. F.; Fischer, M. J.; Fisher, J. M.; Fishler, B. T.; Florio, J. W.; Forsman, A.; Foxworthy, C. B.; Franks, R. M.; Frazier, T.; Frieder, G.; Fung, T.; Gawinski, G. N.; Gibson, C. R.; Giraldez, E.; Glenn, S. M.; Golick, B. P.; Gonzales, H.; Gonzales, S. A.; Gonzalez, M. J.; Griffin, K. L.; Grippen, J.; Gross, S. M.; Gschweng, P. H.; Gururangan, G.; Gu, K.; Haan, S. W.; Hahn, S. R.; Haid, B. J.; Hamblen, J. E.; Hammel, B. A.; Hamza, A. V.; Hardy, D. L.; Hart, D. R.; Hartley, R. G.; Haynam, C. A.; Heestand, G. M.; Hermann, M. R.; Hermes, G. L.; Hey, D. S.; Hibbard, R. L.; Hicks, D. G.; Hinkel, D. E.; Hipple, D. L.; Hitchcock, J. D.; Hodtwalker, D. L.; Holder, J. P.; Hollis, J. D.; Holtmeier, G. M.; Huber, S. R.; Huey, A. W.; Hulsey, D. N.; Hunter, S. L.; Huppler, T. R.; Hutton, M. S.; Izumi, N.; Jackson, J. L.; Jackson, M. A.; Jancaitis, K. S.; Jedlovec, D. R.; Johnson, B.; Johnson, M. C.; Johnson, T.; Johnston, M. P.; Jones, O. S.; Kalantar, D. H.; Kamperschroer, J. H.; Kauffman, R. L.; Keating, G. A.; Kegelmeyer, L. M.; Kenitzer, S. L.; Kimbrough, J. R.; King, K.; Kirkwood, R. K.; Klingmann, J. L.; Knittel, K. M.; Kohut, T. R.; Koka, K. G.; Kramer, S. W.; Krammen, J. E.; Krauter, K. G.; Krauter, G. W.; Krieger, E. K.; Kroll, J. J.; La Fortune, K. N.; Lagin, L. J.; Lakamsani, V. K.; Landen, O. L.; Lane, S. W.; Langdon, A. B.; Langer, S. H.; Lao, N.; Larson, D. W.; Latray, D.; Lau, G. T.; Le Pape, S.; Lechleiter, B. L.; Lee, Y.; Lee, T. L.; Li, J.; Liebman, J. A.; Lindl, J. D.; Locke, S. F.; Loey, H. K.; London, R. A.; Lopez, F. J.; Lord, D. M.; Lowe-Webb, R. R.; Lown, J. G.; Ludwigsen, A. P.; Lum, N. W.; Lyons, R. R.; Ma, T.; MacKinnon, A. J.; Magat, M. D.; Maloy, D. T.; Malsbury, T. N.; Markham, G.; Marquez, R. M.; Marsh, A. A.; Marshall, C. D.; Marshall, S. R.; Maslennikov, I. L.; Mathisen, D. G.; Mauger, G. J.; Mauvais, M. -Y.; McBride, J. A.; McCarville, T.; McCloud, J. B.; McGrew, A.; McHale, B.; MacPhee, A. G.; Meeker, J. F.; Merill, J. S.; Mertens, E. P.; Michel, P. A.; Miller, M. G.; Mills, T.; Milovich, J. L.; Miramontes, R.; Montesanti, R. C.; Montoya, M. M.; Moody, J.; Moody, J. D.; Moreno, K. A.; Morris, J.; Morriston, K. M.; Nelson, J. R.; Neto, M.; Neumann, J. D.; Ng, E.; Ngo, Q. M.; Olejniczak, B. L.; Olson, R. E.; Orsi, N. L.; Owens, M. W.; Padilla, E. H.; Pannell, T. M.; Parham, T. G.; Patterson, R. W., Jr.; Pavel, G.; Prasad, R. R.; Pendlton, D.; Penko, F. A.; Pepmeier, B. L.; Petersen, D. E.; Phillips, T. W.; Pigg, D.; Piston, K. W.; Pletcher, K. D.; Powell, C. L.; Radousky, H. B.; Raimondi, B. S.; Ralph, J. E.; Rampke, R. L.; Reed, R. K.; Reid, W. A.; Rekow, V. V.; Reynolds, J. L.; Rhodes, J. J.; Richardson, M. J.; Rinnert, R. J.; Riordan, B. P.; Rivenes, A. S.; Rivera, A. T.; Roberts, C. J.; Robinson, J. A.; Robinson, R. B.; Robison, S. R.; Rodriguez, O. R.; Rogers, S. P.; Rosen, M. D.; Ross, G. F.; Runkel, M.; Runtal, A. S.; Sacks, R. A.; Sailors, S. F.; Salmon, J. T.; Salmonson, J. D.; Saunders, R. L.; Schaffer, J. R.; Schindler, T. M.; Schmitt, M. J.; Schneider, M. B.; Segraves, K. S.; Shaw, M. J.; Sheldrick, M. E.; Shelton, R. T.; Shiflett, M. K.; Shiromizu, S. J.; Shor, M.; Silva, L. L.; Silva, S. A.; Skulina, K. M.; Smauley, D. A.; Smith, B. E.; Smith, L. K.; Solomon, A. L.; Sommer, S.; Soto, J. G.; Spafford, N. I.; Speck, D. E.; Springer, P. T.; Stadermann, M.; Stanley, F.; Stone, T. G.; Stout, E. A.; Stratton, P. L.; Strausser, R. J.; Suter, L. J.; Sweet, W.; Swisher, M. F.; Tappero, J. D.; Tassano, J. B.; Taylor, J. S.; Tekle, E. A.; Thai, C.; Thomas, C. A.; Thomas, A.; Throop, A. L.; Tietbohl, G. L.; Tillman, J. M.; Town, R. P. J.; Townsend, S. L.; Tribbey, K. L.; Trummer, D.; Truong, J.; Vaher, J.; Valadez, M.; Van Arsdall, P.; Van Prooyen, A. J.; de Dios, E. O. Vergel; Vergino, M. D.; Vernon, S. P.; Vickers, J. L.; Villanueva, G. T.; Vitalich, M. A.; Vonhof, S. A.; Wade, F. E.; Wallace, R. J.; Warren, C. T.; Warrick, A. L.; Watkins, J.; Weaver, S.; Wegner, P. J.; Weingart, M. A.; Wen, J.; White, K. S.; Whitman, P. K.; Widmann, K.; Widmayer, C. C.; Wilhelmsen, K.; Williams, E. A.; Williams, W. H.; Willis, L.; Wilson, E. F.; Wilson, B. A.; Witte, M. C.; Work, K.; Yang, P. S.; Young, B. K.; Youngblood, K. P.; Zacharias, R. A.; Zaleski, T.; Zapata, P. G.; Zhang, H.; Zielinski, J. S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Kline, J. L.; Kyrala, G. A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Niemann, C.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Kilkenny, J. D.; Nikroo, A.; Van Wonterghem, B. M.; Atherton, L. J.; Moses, E. I.] Gen Atom, San Diego, CA 92121 USA. RP Glenzer, SH (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RI Stadermann, Michael /A-5936-2012; Barker, David/A-5671-2013; Whitman, Pamela/B-2336-2013; Michel, Pierre/J-9947-2012; Ma, Tammy/F-3133-2013; MacKinnon, Andrew/P-7239-2014; Hicks, Damien/B-5042-2015; IZUMI, Nobuhiko/J-8487-2016 OI Kline, John/0000-0002-2271-9919; Reed, Rolf K./0000-0002-2633-6595; Stadermann, Michael /0000-0001-8920-3581; Ma, Tammy/0000-0002-6657-9604; MacKinnon, Andrew/0000-0002-4380-2906; Hicks, Damien/0000-0001-8322-9983; IZUMI, Nobuhiko/0000-0003-1114-597X FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 32 TC 67 Z9 76 U1 2 U2 25 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 FEB 25 PY 2011 VL 106 IS 8 AR 085004 DI 10.1103/PhysRevLett.106.085004 PG 5 WC Physics, Multidisciplinary SC Physics GA 726OH UT WOS:000287732600003 PM 21405580 ER PT J AU Zayak, AT Hu, YS Choo, H Bokor, J Cabrini, S Schuck, PJ Neaton, JB AF Zayak, A. T. Hu, Y. S. Choo, H. Bokor, J. Cabrini, S. Schuck, P. J. Neaton, J. B. TI Chemical Raman Enhancement of Organic Adsorbates on Metal Surfaces SO PHYSICAL REVIEW LETTERS LA English DT Article ID SILVER ELECTRODE; SPECTROSCOPY; SCATTERING; PYRIDINE; SERS; NANOPARTICLES; SPECTRA AB Using first-principles theory and experiments, chemical contributions to surface-enhanced Raman spectroscopy for a well-studied organic molecule, benzene thiol, chemisorbed on planar Au(111) surfaces are explained and quantified. Density functional theory calculations of the static Raman tensor demonstrate a strong mode-dependent modification of benzene thiol Raman spectra by Au substrates. Raman active modes with the largest enhancements result from stronger contributions from Au to their electron-vibron coupling, as quantified through a deformation potential. A straightforward and general analysis is introduced to extract chemical enhancement from experiments for specific vibrational modes; measured values are in excellent agreement with our calculations. C1 [Zayak, A. T.; Choo, H.; Bokor, J.; Cabrini, S.; Schuck, P. J.; Neaton, J. B.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. [Zayak, A. T.; Choo, H.; Bokor, J.] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA. [Hu, Y. S.] Rice Univ, Dept Bioengn, Houston, TX 77005 USA. RP Zayak, AT (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. EM jbneaton@lbl.gov RI Neaton, Jeffrey/F-8578-2015; Bokor, Jeffrey/A-2683-2011 OI Neaton, Jeffrey/0000-0001-7585-6135; FU AFOSR/DARPA [FA9550-08-1-0257]; Molecular Foundry through the Office of Science, Office of Basic Energy Sciences, of the DOE FX We thank L. Kronik, D. Prendergast and I. Tamblyn for discussions. Portions of this work were supported by the AFOSR/DARPA under contract FA9550-08-1-0257, and by the Molecular Foundry through the Office of Science, Office of Basic Energy Sciences, of the DOE. Computational resources were provided by DOE (LBNL Lawrencium, NERSC Franklin) and DOD (HPCMP ARL MJM). NR 28 TC 58 Z9 58 U1 2 U2 72 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 FEB 25 PY 2011 VL 106 IS 8 AR 083003 DI 10.1103/PhysRevLett.106.083003 PG 4 WC Physics, Multidisciplinary SC Physics GA 726OH UT WOS:000287732600001 PM 21405569 ER PT J AU Pili, E Kennedy, BM Conrad, ME Gratier, JP AF Pili, E. Kennedy, B. M. Conrad, M. E. Gratier, J. -P. TI Isotopic evidence for the infiltration of mantle and metamorphic CO2-H2O fluids from below in faulted rocks from the San Andreas Fault system SO CHEMICAL GEOLOGY LA English DT Article DE San Andreas Fault; Fluid; Mantle; Metamorphism; Noble gas; CO2; Stable isotopes ID COAST RANGES; SOUTHERN CALIFORNIA; NORTHERN CALIFORNIA; INTERNAL STRUCTURE; GABRIEL FAULT; SHEAR ZONES; LOWER CRUST; PARKFIELD; HELIUM; SEISMICITY AB To characterize the origin of the fluids involved in the San Andreas Fault (SAF) system, we carried out an isotope study of exhumed faulted rocks from deformation zones, vein fillings and their hosts and the fluid inclusions associated with these materials. Samples were collected from segments along the SAF system selected to provide a depth profile from upper to lower crust. In all, 75 samples from various structures and lithologies from 13 localities were analyzed for noble gas, carbon, and oxygen isotope compositions. Fluid inclusions exhibit helium isotope ratios (He-3/He-4) of 0.1-2.5 times the ratio in air, indicating that past fluids percolating through the SAF system contained mantle helium contributions of at least 35%, similar to what has been measured in present-day ground waters associated with the fault (Kennedy et al., 1997). Calcite is the predominant vein mineral and is a common accessory mineral in deformation zones. A systematic variation of C- and O-isotope compositions of carbonates from veins, deformation zones and their hosts suggests percolation by external fluids of similar compositions and origin with the amount of fluid infiltration increasing from host rocks to vein to deformation zones. The isotopic trend observed for carbonates in veins and deformation zones follows that shown by carbonates in host limestones, marbles, and other host rocks, increasing with increasing contribution of deep metamorphic crustal volatiles. At each crustal level, the composition of the infiltrating fluids is thus buffered by deeper metamorphic sources. A negative correlation between calcite delta C-13 and fluid inclusion He-3/He-4 is consistent with a mantle origin for a fraction of the infiltrating CO2. Noble gas and stable isotope systematics show consistent evidence for the involvement of mantle-derived fluids combined with infiltration of deep metamorphic H2O and CO2 in faulting, supporting the involvement of deep fluids percolating through and perhaps weakening the fault zone. There is no clear evidence for a significant contribution from meteoric water, except for overprinting related to late weathering. (C) 2010 Elsevier B.V. All rights reserved. C1 [Pili, E.] Sorbonne Paris Cite, Inst Phys Globe, F-75238 Paris 05, France. [Kennedy, B. M.; Conrad, M. E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Isotope Geochem, Berkeley, CA 94720 USA. [Gratier, J. -P.] LGIT CNRS Observ, F-38041 Grenoble, France. [Pili, E.] DIF, DAM, CEA, F-91297 Arpajon, France. RP Pili, E (reprint author), CEA DASE SRCE, F-91297 Arpajon, France. EM Eric.Pili@cea.fr RI Gratier, Jean-Pierre/F-9231-2012; Conrad, Mark/G-2767-2010 FU Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences and Bioscience Program of the U.S. Department of Energy [DEAC02-05CH11231]; France-Berkeley Fund; French Ministry of Foreign Affair FX Work partly supported by the Director, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences and Bioscience Program of the U.S. Department of Energy under Contract No. DEAC02-05CH11231, the France-Berkeley Fund, and a Lavoisier grant from the French Ministry of Foreign Affair. We thank David Shuster for help in the noble gas analyses, Simon Sheppard and Michelle Emery for supplying stable isotope analyses of a preliminary sample set, Valerie Ballu and David Shuster for assistance in the field, and Michelle Clermont for preparing some of the thin sections. Fruitful discussions and/or field work with Peter Eichhubl, Sophie Guillon, Youssif Kharaka, Robert Liechti, Robert McLaughlin, Franck Poitrasson, and Simon M.F. Sheppard have been very much appreciated. The comments made by Joerg Erzinger and two anonymous reviewers were very helpful in preparing a revised version of the manuscript. Barbara Sherwood Lollar is thanked for her editorial handling. This is IPGP contribution 3110. NR 63 TC 9 Z9 9 U1 1 U2 16 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2541 J9 CHEM GEOL JI Chem. Geol. PD FEB 24 PY 2011 VL 281 IS 3-4 BP 242 EP 252 DI 10.1016/j.chemgeo.2010.12.011 PG 11 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 733YB UT WOS:000288299300008 ER PT J AU Degu, AM Hossain, F Niyogi, D Pielke, R Shepherd, JM Voisin, N Chronis, T AF Degu, Ahmed Mohamed Hossain, Faisal Niyogi, Dev Pielke, Roger, Sr. Shepherd, J. Marshall Voisin, Nathalie Chronis, Themis TI The influence of large dams on surrounding climate and precipitation patterns SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID WATER-RESOURCES; RIVER-BASIN; HYDROLOGY; IRRIGATION AB Understanding the forcings exerted by large dams on local climate is key to establishing if artificial reservoirs inadvertently modify precipitation patterns in impounded river basins. Using a 30 year record of reanalysis data, the spatial gradients of atmospheric variables related to precipitation formation are identified around the reservoir shoreline for 92 large dams of North America. Our study reports that large dams influence local climate most in Mediterranean, and semi-arid climates, while for humid climates the influence is least apparent. Clear spatial gradients of convective available potential energy, specific humidity and surface evaporation are also observed around the fringes between the reservoir shoreline and farther from these dams. Because of the increasing correlation observed between CAPE and extreme precipitation percentiles, our findings point to the possibility of storm intensification in impounded basins of the Mediterranean and arid climates of the United States. Citation: Degu, A. M., F. Hossain, D. Niyogi, R. Pielke Sr., J. M. Shepherd, N. Voisin, and T. Chronis (2011), The influence of large dams on surrounding climate and precipitation patterns, Geophys. Res. Lett., 38, L04405, doi: 10.1029/2010GL046482. C1 [Degu, Ahmed Mohamed; Hossain, Faisal] Tennessee Technol Univ, Dept Civil & Environm Engn, Cookeville, TN 38505 USA. [Niyogi, Dev] Purdue Univ, Dept Earth & Atmospher Sci, W Lafayette, IN 47907 USA. [Pielke, Roger, Sr.] Univ Colorado, CIRES, Boulder, CO 80309 USA. [Shepherd, J. Marshall] Univ Georgia, Dept Geog, Athens, GA 30602 USA. [Voisin, Nathalie] Pacific NW Natl Lab, Richland, WA 99352 USA. [Chronis, Themis] Hellen Ctr Marine Res, GR-19013 Anavyssos, Greece. RP Degu, AM (reprint author), Tennessee Technol Univ, Dept Civil & Environm Engn, 1020 Stadium Dr, Cookeville, TN 38505 USA. EM fhossain@tntech.edu RI Voisin, Nathalie/D-8845-2014; OI Voisin, Nathalie/0000-0002-6848-449X FU National Science Foundation [ATM-0831331]; DOE ARM [08ER64674]; NSF [ATM-0847472] FX The authors wish to acknowledge the reviews received from two anonymous reviewers that significantly improved the manuscript. The first author acknowledges partial support received from the Center for Management, Utilization and Protection of Water Resources at Tennessee Technological University. Roger Pielke Sr. received support from National Science Foundation grant ATM-0831331. The authors also acknowledge the National Climatic Data Center for the precipitation data and the Global Water Systems Project Digital Water Atlas at the University of New Hampshire. The views expressed in this study do not reflect any dam operating agency. Niyogi's research was partially supported by Purdue University Faculty Scholar Program, DOE ARM (08ER64674, Dr. Rick Petty), and NSF CAREER (ATM-0847472, Dr. Liming Zhou). NR 23 TC 32 Z9 33 U1 3 U2 17 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 FEB 24 PY 2011 VL 38 AR L04405 DI 10.1029/2010GL046482 PG 7 WC Geosciences, Multidisciplinary SC Geology GA 727NO UT WOS:000287808100002 ER PT J AU Mao, Z Dorfman, SM Shieh, SR Lin, JF Prakapenka, VB Meng, Y Duffy, TS AF Mao, Z. Dorfman, S. M. Shieh, S. R. Lin, J. F. Prakapenka, V. B. Meng, Y. Duffy, T. S. TI Equation of state of a high-pressure phase of Gd3Ga5O12 SO PHYSICAL REVIEW B LA English DT Article ID GADOLINIUM GALLIUM GARNET; HIGH-TEMPERATURE CREEP; HARDEST KNOWN OXIDE; ALUMINUM GARNETS; LATTICE STRAINS; 140 GPA; PEROVSKITE; SYSTEM; TRANSITIONS; DIAMOND AB Gd3Ga5O12 (GGG), which crystallizes in the garnet structure at ambient conditions, was observed to transform to a high-pressure phase at 88 GPa after laser heating at 1500 K. This new phase is stable at least up to 180 GPa, and can be preserved on decompression to 50 GPa. This phase is cubic and consistent with a perovskite structure of stoichiometry (Gd0.75Ga0.25)GaO3. The zero-pressure bulk modulus, K-0, obtained from fitting to a Birch-Murnaghan equation of state is 373(5) GPa with a fixed pressure derivative K-0' = 4. At 170 GPa, the bulk modulus of perovskite-type GGG is 979(15) GPa, which is comparable to that of diamond at the same pressure [956(21) GPa] and consistent with recently reported shock-compression data for Gd3Ga5O12. The new high-pressure phase of Gd3Ga5O12 is thus highly incompressible. C1 [Mao, Z.; Dorfman, S. M.; Duffy, T. S.] Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA. [Mao, Z.; Lin, J. F.] Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA. [Shieh, S. R.] Univ Western Ontario, Dept Earth Sci Phys & Astron, London, ON N6A 5B7, Canada. [Prakapenka, V. B.] Univ Chicago, Argonne Natl Lab, CARS, Argonne, IL 60439 USA. [Meng, Y.] Carnegie Inst Sci, HPCAT, Argonne, IL 60439 USA. RP Mao, Z (reprint author), Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA. RI Lin, Jung-Fu/B-4917-2011; Mao, Zhu/A-9015-2015; Duffy, Thomas/C-9140-2017; OI Duffy, Thomas/0000-0002-5357-1259; Dorfman, Susannah/0000-0002-3968-9592 FU COMPRES; Consortium for Materials Property Research in Earth Science; Carnegie/DOE alliance center; NSF [EAR-0738510, EAR-0838221, EAR-0622171]; EFree of the Energy Frontier Research Centers; DOE [DE-FG02-94ER14466]; DOE-BES [DE-AC02-06CH11357]; DOE-NNSA; W. M. Keck Foundation; US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX We acknowledge I. Kantor for experimental assistance, and W. J. Nellis and T. Mashimo for helpful discussion. This research was partially supported by COMPRES, the Consortium for Materials Property Research in Earth Science, Carnegie/DOE alliance center and by NSF Grant No. EAR-0738510 to T. S. Duffy, and EFree of the Energy Frontier Research Centers and NSF Grant No. EAR-0838221 to J. F. Lin. Portions of this work were performed at GSECARS and HPCAT at APS, ANL. GSECARS is supported by NSF, under Contract No. EAR-0622171 and DOE (Contract No. DE-FG02-94ER14466). HPCAT is supported by DOE-BES, DOE-NNSA, NSF, and the W. M. Keck Foundation. APS is supported by DOE-BES, under Contract No. DE-AC02-06CH11357. Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 40 TC 12 Z9 12 U1 0 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 24 PY 2011 VL 83 IS 5 AR 054114 DI 10.1103/PhysRevB.83.054114 PG 6 WC Physics, Condensed Matter SC Physics GA 726HX UT WOS:000287712100003 ER PT J AU Glezakou, VA deJong, WA AF Glezakou, Vassiliki-Alexandra deJong, Wibe A. TI Cluster-Models for Uranyl(VI) Adsorption on alpha-Alumina SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID MOLECULAR-DYNAMICS SIMULATIONS; ABSORPTION FINE-STRUCTURE; WATER EXCHANGE; AB-INITIO; AQUEOUS-SOLUTION; ALPHA-AL2O3 0001; DIOXOURANIUM(VI) ION; MINERAL SURFACES; COMPLEXES; SORPTION AB Aqueous complexation, adsorption, and redox chemistry of actinide species at mineral surfaces have a significant impact on their transport and reactive behavior in chemically and physically heterogeneous environments. The adsorption configurations and energies of microsolvated uranyl dication species, UO(2)(H(2)O)(n)(2+), were determined on fully hydroxylated and proton-deficient alpha-alumina(0001)-like finite duster models. The significant size of the models provides faithful representations of features that have emerged from periodic calculations, but most importantly, they afford us a systematic study of the adsorption mechanism, the effect of secondary solvation shells and an explicit treatment of the total charge. Based on this duster representation, the energetics computed from the difference between the optimized structures and the appropriate reference states point to a preference for an inner-sphere type complex. C1 [Glezakou, Vassiliki-Alexandra] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. [deJong, Wibe A.] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Glezakou, VA (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, POB 999, Richland, WA 99352 USA. EM vanda.glezakou@pnl.gov; wibe.deJong@pnl.gov RI DE JONG, WIBE/A-5443-2008 OI DE JONG, WIBE/0000-0002-7114-8315 FU U.S. Department of Energy's Office of Biological and Environmental Research and located at the Pacific Northwest National Laboratory; U.S. Department of Energy, Office of Science FX The authors wish to thank Drs. John L. Fulton, Ping Yang, and Niri Govind for a critical review of the manuscript and useful discussions. This research was performed using the Molecular Science Computing Capability in the William R Wiley Environmental Molecular Science Laboratory, a national scientific user facility sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research and located at the Pacific Northwest National Laboratory, operated for the Department of Energy by Battelle. This work was supported by the BES Heavy Element Chemistry program of the U.S. Department of Energy, Office of Science. NR 57 TC 24 Z9 24 U1 4 U2 19 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD FEB 24 PY 2011 VL 115 IS 7 BP 1257 EP 1263 DI 10.1021/jp1092509 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721FB UT WOS:000287337900013 PM 21268625 ER PT J AU Ellis, DS Kim, J Zhang, H Hill, JP Gu, G Komiya, S Ando, Y Casa, D Gog, T Kim, YJ AF Ellis, D. S. Kim, Jungho Zhang, Harry Hill, J. P. Gu, Genda Komiya, Seiki Ando, Yoichi Casa, D. Gog, T. Kim, Young-June TI Electronic structure of doped lanthanum cuprates studied with resonant inelastic x-ray scattering SO PHYSICAL REVIEW B LA English DT Article ID T-C SUPERCONDUCTORS; FERMI-SURFACE; RAMAN-SCATTERING; OPTICAL-SPECTRA; CUO2 PLANE; LA2-XSRXCUO4; EXCITATIONS; DYNAMICS; OXIDES; SHIFT AB We report a comprehensive Cu K-edge resonant inelastic x-ray scattering (RIXS) investigation of La2-xSrxCuO4 (LSCO) for 0 <= x <= 0.35, stripe-ordered La1.875Ba0.125CuO4 (LBCO), and La2Cu0.96Ni0.04O4 (LCNO) crystals. The RIXS spectra measured at three high-symmetry momentum-transfer (q) positions are compared as a function of doping and for the different dopants. The spectra in the energy range 1-6 eV can be described with three broad peaks, which evolve systematically with increased doping. The most systematic trend was observed for q = (pi,0) corresponding to the zone boundary. As hole doping increased, the spectral weight transfer from high energies to low energies is nearly linear with x at this q. We interpret the peaks as interband transitions in the context of existing band models for this system, assigning them to Zhang-Rice band -> upper Hubbard band, lower-lying band -> upper Hubbard band, and lower-lying band -> Zhang-Rice band transitions. The spectrum of stripe-ordered LBCO was also measured, and found to be identical to the correspondingly doped LSCO, except for a relative enhancement of the near-infrared peak intensity at similar to 1.5-1.7 eV. The temperature dependence of this near-infrared peak in LBCO was more pronounced than for other parts of the spectrum, continuously decreasing in intensity as the temperature was raised from 25 to 300 K. Finally, we find that 4% Ni substitution in the Cu site has a similar effect on the spectra as does Sr substitution in the La site. C1 [Ellis, D. S.; Kim, Jungho; Zhang, Harry; Kim, Young-June] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. [Ellis, D. S.] Mat Dynam Lab, Sayo, Hyogo 679, Japan. [Kim, Jungho; Casa, D.; Gog, T.] Argonne Natl Lab, XOR, Adv Photon Source, Argonne, IL 60439 USA. [Hill, J. P.; Gu, Genda] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Komiya, Seiki] Cent Res Inst Elect Power Ind, Kanagawa 2400196, Japan. [Ando, Yoichi] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan. RP Ellis, DS (reprint author), Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. EM yjkim@physics.utoronto.ca RI Hill, John/F-6549-2011; Kim, Young-June /G-7196-2011; Ando, Yoichi/B-8163-2013; Casa, Diego/F-9060-2016 OI Kim, Young-June /0000-0002-1172-8895; Ando, Yoichi/0000-0002-3553-3355; FU Natural Sciences and Engineering Research Council of Canada; US DOE, Office of Science [DE-AC02-98CH10886]; US DOE, Office of Science, Office of Basic Energy Sciences [W-31-109-ENG-38] FX We would like to thank Suichi Wakimoto for sharing his data from Ref. 31. The work at University of Toronto was supported by Natural Sciences and Engineering Research Council of Canada. The work at Brookhaven was supported by the US DOE, Office of Science Contract No. DE-AC02-98CH10886. Use of the Advanced Photon Source was supported by the US DOE, Office of Science, Office of Basic Energy Sciences, under Contract No. W-31-109-ENG-38. NR 56 TC 5 Z9 5 U1 2 U2 16 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD FEB 24 PY 2011 VL 83 IS 7 AR 075120 DI 10.1103/PhysRevB.83.075120 PG 9 WC Physics, Condensed Matter SC Physics GA 726IC UT WOS:000287712700004 ER PT J AU Sidorov, VA Krasnorussky, VN Petrova, AE Utyuzh, AN Yuhasz, WM Lograsso, TA Thompson, JD Stishov, SM AF Sidorov, V. A. Krasnorussky, V. N. Petrova, A. E. Utyuzh, A. N. Yuhasz, W. M. Lograsso, T. A. Thompson, J. D. Stishov, S. M. TI High-pressure study of the phase transition in the itinerant ferromagnet CoS2 SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC-PROPERTIES; ELECTRICAL-RESISTIVITY; METAMAGNETISM AB Electrical resistivity and magnetic susceptibility measurements of the itinerant ferromagnet CoS2 at high pressures reveal that its magnetic ordering temperature is tuned to zero at a critical pressure 4.8 GPa, indicating the existence of a quantum-phase transition. The ambient pressure continuous magnetic-phase transition in CoS2 becomes first order on a very slight pressure increase, with a tricritical point probably located almost at ambient pressure. No deviations from Fermi-liquid behavior were found in the vicinity of the quantum-phase transition in CoS2, implying its strong first-order nature. C1 [Sidorov, V. A.; Krasnorussky, V. N.; Petrova, A. E.; Utyuzh, A. N.; Stishov, S. M.] Russian Acad Sci, Inst High Pressure Phys, RU-142190 Troitsk, Moscow Region, Russia. [Sidorov, V. A.; Thompson, J. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Sidorov, V. A.] Moscow Inst Phys & Technol, RU-141700 Dolgoprudnyi, Moscow Region, Russia. [Yuhasz, W. M.; Lograsso, T. A.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Sidorov, VA (reprint author), Russian Acad Sci, Inst High Pressure Phys, RU-142190 Troitsk, Moscow Region, Russia. EM sergei@hppi.troitsk.ru FU Russian Foundation for Basic Research [09-02-00336]; Physics Department of Russian Academy of Sciences (RAS); Presidium of RAS; Iowa State University [DE-AC02-07CH11358] FX A.E.P. and S.M.S. thank Sergey L. Bud'ko for help with dc magnetic measurements. This work was supported by the Russian Foundation for Basic Research (Grant No. 09-02-00336), Program of the Physics Department of Russian Academy of Sciences (RAS) on Strongly Correlated Electron Systems and Program of the Presidium of RAS on Strongly Compressed Matter. Work at Los Alamos National Laboratory was performed under the auspices of the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering. W.M.Y. and T.A.L. wish to acknowledge research performed at Ames Laboratory. Ames Laboratory is operated for the US Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. NR 20 TC 11 Z9 11 U1 5 U2 36 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 24 PY 2011 VL 83 IS 6 AR 060412 DI 10.1103/PhysRevB.83.060412 PG 4 WC Physics, Condensed Matter SC Physics GA 726IB UT WOS:000287712600001 ER PT J AU Martin, SP AF Martin, Stephen P. TI Quirks in supersymmetry with gauge coupling unification SO PHYSICAL REVIEW D LA English DT Article ID PRECISION ELECTROWEAK EXPERIMENTS; RENORMALIZATION-GROUP EQUATIONS; SOFTLY BROKEN SUPERSYMMETRY; BETA-FUNCTION; RADIATIVE-CORRECTIONS; TECHNICOLOR THEORIES; HADRON COLLIDERS; HEAVY PHYSICS; FIXED-POINTS; PARTICLES AB I investigate the phenomenology of supersymmetric models with extra vectorlike supermultiplets that couple to the standard model gauge fields and transform as the fundamental representation of a new confining non-Abelian gauge interaction. If perturbative gauge coupling unification is to be maintained, the new group can be SU(2), SU(3), or SO(3). The impact on the sparticle mass spectrum is explored, with particular attention to the gaugino mass dominated limit in which the supersymmetric flavor problem is naturally solved. The new confinement length scale is astronomical for SO(3), so the new particles are essentially free. For the SU(2) and SU(3) cases, the new vectorlike fermions are quirks; pair production at colliders yields quirk-antiquirk states bound by stable flux tubes that are microscopic but long compared to the new confinement scale. I study the reach of the Tevatron and LHC for the optimistic case that in a significant fraction of events the quirk- antiquirk bound state will lose most of its energy before annihilating as quirkonium. C1 [Martin, Stephen P.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Martin, Stephen P.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Martin, SP (reprint author), No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. FU National Science Foundation [PHY-0757325] FX I am grateful to Ricky Fok, Roni Harnik, Jose Juknevich, and Graham Kribs for helpful communications. This work was supported in part by the National Science Foundation Grant No. PHY-0757325. NR 112 TC 13 Z9 13 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB 24 PY 2011 VL 83 IS 3 AR 035019 DI 10.1103/PhysRevD.83.035019 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 726IH UT WOS:000287713200006 ER PT J AU Osborn, JC AF Osborn, James C. TI Staggered chiral random matrix theory SO PHYSICAL REVIEW D LA English DT Article ID QCD DIRAC OPERATOR; MICROSCOPIC SPECTRAL DENSITY; UNIVERSALITY; SYMMETRY; EIGENVALUES; BREAKING; FERMIONS; ENERGY; MODELS; LIMIT AB We present a random matrix theory for the staggered lattice QCD Dirac operator. The staggered random matrix theory is equivalent to the zero-momentum limit of the staggered chiral Lagrangian and includes all taste breaking terms at their leading order. This is an extension of previous work which only included some of the taste breaking terms. We will also present some results for the taste breaking contributions to the partition function and the Dirac eigenvalues. C1 Argonne Natl Lab, Leadership Comp Facil, Argonne, IL 60439 USA. RP Osborn, JC (reprint author), Argonne Natl Lab, Leadership Comp Facil, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 40 TC 6 Z9 6 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 24 PY 2011 VL 83 IS 3 AR 034505 DI 10.1103/PhysRevD.83.034505 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 726IH UT WOS:000287713200005 ER PT J AU de Lange, G Riste, D Dobrovitski, VV Hanson, R AF de lange, G. Riste, D. Dobrovitski, V. V. Hanson, R. TI Single-Spin Magnetometry with Multipulse Sensing Sequences SO PHYSICAL REVIEW LETTERS LA English DT Article ID MAGNETIC-RESONANCE; DIAMOND; SENSITIVITY AB We experimentally demonstrate single-spin magnetometry with multipulse sensing sequences. The use of multipulse sequences can greatly increase the sensing time per measurement shot, resulting in enhanced ac magnetic field sensitivity. We theoretically derive and experimentally verify the optimal number of sensing cycles, for which the effects of decoherence and increased sensing time are balanced. We perform these experiments for oscillating magnetic fields with fixed phase as well as for fields with random phase. Finally, by varying the phase and frequency of the ac magnetic field, we measure the full frequency-filtering characteristics of different multipulse schemes and discuss their use in magnetometry applications. C1 [de lange, G.; Riste, D.; Hanson, R.] Delft Univ Technol, Kavli Inst Nanosci Delft, NL-2600 GA Delft, Netherlands. [Dobrovitski, V. V.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. RP de Lange, G (reprint author), Delft Univ Technol, Kavli Inst Nanosci Delft, POB 5046, NL-2600 GA Delft, Netherlands. RI Hanson, Ronald/B-9555-2008; de Lange, Gijs/D-6868-2012; Riste, Diego/G-9215-2012 OI de Lange, Gijs/0000-0002-9437-0816; FU FOM; NWO; EU SOLID; DARPA; Department of Energy-Basic Energy Sciences [DE-AC02-07CH11358] FX We gratefully acknowledge support from FOM, NWO and the EU SOLID and DARPA QuEST programs. Work at Ames Laboratory was supported by the Department of Energy-Basic Energy Sciences under Contract No. DE-AC02-07CH11358. NR 26 TC 80 Z9 80 U1 2 U2 31 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 FEB 24 PY 2011 VL 106 IS 8 AR 080802 DI 10.1103/PhysRevLett.106.080802 PG 4 WC Physics, Multidisciplinary SC Physics GA 726IV UT WOS:000287714900005 PM 21405560 ER PT J AU Konopka, DA Li, M Artyushkova, K Marinkovic, N Sasaki, K Adzic, R Ward, TL Atanassov, P AF Konopka, Daniel A. Li, Meng Artyushkova, Kateryna Marinkovic, Nebojsa Sasaki, Kotaro Adzic, Radoslav Ward, Timothy L. Atanassov, Plamen TI Platinum Supported on NbRuyOz as Electrocatalyst for Ethanol Oxidation in Acid and Alkaline Fuel Cells SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID TIME FTIR SPECTROSCOPY; METHANOL OXIDATION; ELECTROOXIDATION PATHWAYS; PREFERENTIAL OXIDATION; OXYGEN REDUCTION; CO OXIDATION; ACETIC-ACID; CATALYSTS; NIOBIUM; ELECTRODES AB Platinum supported on a mixed metal oxide, NbRuyOz (8Nb:1Ru), was evaluated as an electrocatalyst for the ethanol oxidation reaction (EOR) in 0.1 M HClO4 and 1 M KOH. The support was synthesized from a liquid precursor solution of metal chlorides that was aerosolized and thermally decomposed into a powder via the spray pyrolysis (SP) process. Two samples were of primary interest: 30%Pt deposited onto the support by dry impregnation and 60%Pt as part of the precursor solution that underwent in situ SP Pt dispersion. TEM, SEM, and XRD were used to confirm morphology and deposition of Pt. XPS and XAS studies confirmed elemental distribution and oxidation state of Pt catalyst. In situ IRRAS studies in 0.1 M HClO4 show that these electrocatalysts are capable of facilitating the complete oxidation pathway of EOR, involving scission of the C-C bond and CO oxidation. C1 [Konopka, Daniel A.; Artyushkova, Kateryna; Ward, Timothy L.; Atanassov, Plamen] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA. [Li, Meng; Marinkovic, Nebojsa; Sasaki, Kotaro; Adzic, Radoslav] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Atanassov, P (reprint author), Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA. EM plamen@unm.edu RI Artyushkova, Kateryna/B-4709-2008; Atanassov, Plamen/G-4616-2011; Li, Meng/L-8507-2013; Marinkovic, Nebojsa/A-1137-2016 OI Artyushkova, Kateryna/0000-0002-2611-0422; Marinkovic, Nebojsa/0000-0003-3579-3453 FU Department of Energy [DE-PS02-08ER08-04] FX The authors acknowledge funding from the Department of Energy EPSCoR Implementation Program: "Materials for Energy Conversion," #DE-PS02-08ER08-04. NR 54 TC 27 Z9 27 U1 4 U2 37 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 FEB 24 PY 2011 VL 115 IS 7 BP 3043 EP 3056 DI 10.1021/jp109239c PG 14 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 721FD UT WOS:000287338100019 ER PT J AU Shane, DT Rayhel, LH Huang, ZG Zhao, JC Tang, X Stavila, V Conradi, MS AF Shane, David T. Rayhel, Laura H. Huang, Zhenguo Zhao, Ji-Cheng Tang, Xia Stavila, Vitalie Conradi, Mark S. TI Comprehensive NMR Study of Magnesium Borohydride SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID NUCLEAR-MAGNETIC-RESONANCE; HYDROGEN STORAGE; HYDRIDES; MG(BH4)(2); LIBH4 AB (1)H and (11)B NMR measurements were performed to study BH(4) reorientations and diffusion in four samples of Mg(BH(4))(2). These include the low (alpha) and high (beta) temperature bulk solid phases, alpha-phase material with TiF(3) and ScCl(3) additives, and alpha-phase material incorporated into a carbon aerogel. All four samples show (1)H T(1) minima within our temperature range from reorientational motion of the BH(4) tetrahedra. The beta-phase (1)H T(1) minimum occurs at a lower temperature than that for the alpha-phase, indicating a lower activation energy for reorientations. The alpha-phase (1)H spectra display the onset of broadening at low temperatures because of the slowing of reorientations but show no indication of line narrowing at high temperatures from translational diffusion. The beta-phase (1)H spectra are similar, but here T(1D) measurements were performed to determine the BH(4) hopping rate. Above 150 degrees C, a significant narrow component does appear in the (1)H spectra of the aerogel sample, indicating substantially increased diffusive motions in this component. C1 [Shane, David T.; Rayhel, Laura H.; Conradi, Mark S.] Washington Univ, Dept Phys, St Louis, MO 63130 USA. [Huang, Zhenguo; Zhao, Ji-Cheng] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA. [Tang, Xia] United Technol Res Ctr, E Hartford, CT 06108 USA. [Stavila, Vitalie] Sandia Natl Labs, Livermore, CA 94551 USA. RP Shane, DT (reprint author), Washington Univ, Dept Phys, Campus Box 1105,1 Brookings Dr, St Louis, MO 63130 USA. EM davidshane@go.wusdl.edu RI Stavila, Vitalie/F-4188-2010; Stavila, Vitalie/B-6464-2008; Zhao, Ji-Cheng (JC)/H-4387-2012; Huang, Zhenguo/F-4483-2016 OI Stavila, Vitalie/0000-0003-0981-0432; Zhao, Ji-Cheng (JC)/0000-0002-4426-1080; FU Department of Energy through Basic Energy Sciences [DE-FG02-ER46256]; U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) [DE-FC3605GO15062] FX The authors gratefully acknowledge support from the Department of Energy through Basic Energy Sciences grant DE-FG02-ER46256. The work at The Ohio State University is funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) under Contract No. DE-FC3605GO15062. NR 27 TC 19 Z9 19 U1 1 U2 22 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 FEB 24 PY 2011 VL 115 IS 7 BP 3172 EP 3177 DI 10.1021/jp110762s PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 721FD UT WOS:000287338100034 ER PT J AU Sanchez-Roman, M Romanek, CS Fernandez-Remolar, DC Sanchez-Navas, A McKenzie, JA Pibernat, RA Vasconcelos, C AF Sanchez-Roman, Monica Romanek, Christopher S. Fernandez-Remolar, David C. Sanchez-Navas, Antonio McKenzie, Judith Ann Amils Pibernat, Ricardo Vasconcelos, Crisogono TI Aerobic biomineralization of Mg-rich carbonates: Implications for natural environments SO CHEMICAL GEOLOGY LA English DT Article DE Mg-rich carbonates; Dolomite; Huntite; Halophilic aerobic bacteria; Stable carbon isotope ID MARTIAN METEORITE ALH84001; DOLOMITE FORMATION; SOUTH-AUSTRALIA; SPONTANEOUS PRECIPITATION; MICROBIAL MEDIATION; PERU MARGIN; LAKE; BACTERIA; CALCITE; SEDIMENTS AB We studied the formation of Mg-rich carbonate in culture experiments using different aerobic bacterial strains and aqueous Mg/Ca ratios (2 to 11.5) at Earth surface conditions. These bacteria promoted the formation of microenvironments that facilitate the precipitation of mineral phases (dolomite, huntite, high Mg-calcite and hydromagnesite) that were undersaturated in the bulk solution or kinetically inhibited. Dolomite, huntite, high Mg-calcite, hydromagnesite and struvite precipitated in different proportions and at different times, depending on the composition of the medium. The Mg content of dolomite and calcite decreased with an increasing Ca concentration in the medium. The stable carbon isotope composition of the Mg-rich carbonate precipitates reflected the isotope composition of the organic compounds present in the media, suggesting that microbial metabolism strongly influenced the carbon isotope composition of biomediated carbonates. We observed that Ca-enriched carbonate precipitates have relatively low carbon isotope composition. These results provide insights into the mechanism(s) of carbonate formation in natural systems, and they are of fundamental importance for understanding modern environments in which carbonate minerals form as a window into the geologic past. (C) 2010 Elsevier B.V. All rights reserved. C1 [Sanchez-Roman, Monica; Fernandez-Remolar, David C.; Amils Pibernat, Ricardo] INTA CSIC, Ctr Astrobiol, Madrid 28850, Spain. [Sanchez-Roman, Monica; McKenzie, Judith Ann; Vasconcelos, Crisogono] ETH, Inst Geol, CH-8092 Zurich, Switzerland. [Sanchez-Roman, Monica; Romanek, Christopher S.] Univ Georgia, NASA Astrobiol Inst, Aiken, SC 29808 USA. [Sanchez-Roman, Monica; Romanek, Christopher S.] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29808 USA. [Romanek, Christopher S.] Univ Kentucky, Dept Earth & Environm Sci, Lexington, KY 40506 USA. [Sanchez-Navas, Antonio] Univ Granada, Fac Ciencias, Dept Mineral & Petrol, E-18071 Granada, Spain. RP Sanchez-Roman, M (reprint author), INTA CSIC, Ctr Astrobiol, Ctra Ajalvir Km 4, Madrid 28850, Spain. EM msanz78@gmail.com RI Sanchez Navas, Antonio/G-5715-2015 OI Sanchez Navas, Antonio/0000-0003-0588-9884 FU Swiss Science National Foundation (SNF) [20-067620, 20-105149]; NASA's Astrobiology Institute; European Science Foundation (ESF) [2650]; MICINN (Spain) [AYA-2009-11681]; ERC [2503050-IPBSL]; MEC (Spain) [CGL-2009-09249, CGL-2007-66744-CO2-01] FX The Swiss Science National Foundation (SNF) is acknowledged for its financial support through Grant No. 20-067620 and 20-105149. This study also received support from the NASA's Astrobiology Institute and the European Science Foundation (ESF) through Grant ArchEnviron No. 2650. DFR and RAP acknowledge support grants AYA-2009-11681 from MICINN (Spain) and 2503050-IPBSL from ERC. ASN acknowledges funding support CGL-2009-09249 and CGL-2007-66744-CO2-01 from MEC (Spain). We acknowledge the assistance of S Bernasconi, MC Strasser NR 57 TC 37 Z9 45 U1 1 U2 37 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2541 J9 CHEM GEOL JI Chem. Geol. PD FEB 24 PY 2011 VL 281 IS 3-4 BP 143 EP 150 DI 10.1016/j.chemgeo.2010.11.020 PG 8 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 733YB UT WOS:000288299300001 ER PT J AU Dong, XN Almer, JD Wang, XD AF Dong, X. Neil Almer, Jon D. Wang, Xiaodu TI Post-yield nanomechanics of human cortical bone in compression using synchrotron X-ray scattering techniques SO JOURNAL OF BIOMECHANICS LA English DT Article DE Bone; Synchrotron; Internal strain; Macro strain; Post-yield ID COLLAGEN FIBER ORIENTATION; ENERGY-DISSIPATION; SECONDARY OSTEONS; PATTERNS; MINERALIZATION; DEFORMATION; NANOSCALE; BEHAVIOR; POROSITY; LAMELLAE AB The ultrastructural response to applied loads governs the post-yield deformation and failure behavior of bone, and is correlated with bone fragility fractures. Combining a novel progressive loading protocol and synchrotron X-ray scattering techniques, this study investigated the correlation of the local deformation (i.e., internal strains of the mineral and collagen phases) with the bulk mechanical behavior of bone. The results indicated that the internal strains of the longitudinally oriented collagen fibrils and mineral crystals increased almost linearly with respect to the macroscopic strain prior to yielding, but markedly decreased first and then gradually leveled off after yielding. Similar changes were also observed in the applied stress before and after yielding of bone. However, the collagen to mineral strain ratio remained nearly constant throughout the loading process. In addition, the internal strains of longitudinal mineral and collagen phases did not exhibit a linear relationship with either the modulus loss or the plastic deformation of bulk bone tissue. Finally, the time-dependent response of local deformation in the mineral phase was observed after yielding. Based on the results, we speculate that the mineral crystals and collagen fibrils aligned with the loading axis only partially explain the post-yield deformation, suggesting that shear deformation involving obliquely oriented crystals and fibrils (off axis) is dominant mechanism of yielding for human cortical bone in compression. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Dong, X. Neil; Wang, Xiaodu] Univ Texas San Antonio, Dept Mech Engn, San Antonio, TX 78249 USA. [Almer, Jon D.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Wang, XD (reprint author), Univ Texas San Antonio, Dept Mech Engn, 1 UTSA Circle, San Antonio, TX 78249 USA. FU NIH/NIAMS [1R01AR055955]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This study was financially supported by an NIH/NIAMS grant (1R01AR055955). Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract no. DE-AC02-06CH11357. The authors are also grateful of Mr. Anthony Belzung for his help in processing the experimental data. NR 25 TC 21 Z9 21 U1 1 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0021-9290 J9 J BIOMECH JI J. Biomech. PD FEB 24 PY 2011 VL 44 IS 4 BP 676 EP 682 DI 10.1016/j.jbiomech.2010.11.003 PG 7 WC Biophysics; Engineering, Biomedical SC Biophysics; Engineering GA 738KQ UT WOS:000288639100016 PM 21112589 ER PT J AU Kornobis, K Kumar, N Wong, BM Lodowski, P Jaworska, M Andruniow, T Ruud, K Kozlowski, PM AF Kornobis, Karina Kumar, Neeraj Wong, Bryan M. Lodowski, Piotr Jaworska, Maria Andruniow, Tadeusz Ruud, Kenneth Kozlowski, Pawel M. TI Electronically Excited States of Vitamin B-12: Benchmark Calculations Including Time-Dependent Density Functional Theory and Correlated ab Initio Methods SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID PERTURBATION-THEORY; EXCHANGE; ENERGY; COBALAMINS; APPROXIMATION; COB(III)ALAMINS; ABSORPTION; COMPLEXES; DYNAMICS; GRADIENT AB Time-dependent density functional theory (TD-DFT) and correlated ab initio methods have been applied to explore the electronically excited states of vitamin B-12 (cyanocobalamin or CNCbl). Different experimental techniques have been used to probe the excited states of CNCbl, revealing many issues that remain poorly understood from an electronic structure point of view. Due to its efficient scaling with size, TD-DFT emerges as one of the most practical tools that can be used to study the electronic properties of these fairly complex molecules. However, the description of excited states is strongly dependent on the type of functional used in the calculations. In the present contribution, the choice of a proper functional for vitamin B-12 was evaluated in terms of its agreement with both experimental results and correlated ab initio calculations. Three different functionals, Le., B3LYP, BP86, and LC-BLYP, were tested. In addition, the effect of the relative contributions of DFT and HF to the exchange correlation function was investigated as a function of the range-separation parameter, mu. The issues related to the underestimation of charge transfer excitation energies by TD-DFT were validated by the Lambda diagnostic, which measures the spatial overlap between occupied and virtual orbitals involved in the particular excitation. The nature of the low-lying excited states was also analyzed based on a comparison of TD-DFT and ab initio results. Based on an extensive comparison with experimental results and ab initio benchmark calculations, the BP86 functional was found to be the most appropriate in describing the electronic properties of CNCbl. Finally, an analysis of electronic transitions and reassignment of some excitations were discussed. C1 [Kornobis, Karina; Kumar, Neeraj; Kozlowski, Pawel M.] Univ Louisville, Dept Chem, Louisville, KY 40292 USA. [Wong, Bryan M.] Sandia Natl Labs, Dept Chem Mat, Livermore, CA 94551 USA. [Lodowski, Piotr; Jaworska, Maria] Univ Silesia, Inst Chem, Dept Theoret Chem, PL-40006 Katowice, Poland. [Andruniow, Tadeusz] Wroclaw Univ Technol, Dept Chem, Inst Phys & Theoret Chem, PL-50370 Wroclaw, Poland. [Ruud, Kenneth] Univ Tromso, Dept Chem, Ctr Theoret & Computat Chem, N-9037 Tromso, Norway. RP Kozlowski, PM (reprint author), Univ Louisville, Dept Chem, Louisville, KY 40292 USA. EM pawel@louisville.edu RI Wong, Bryan/B-1663-2009; Kumar, Neeraj/E-4256-2013; Ruud, Kenneth/E-5947-2010; Kumar, Neeraj/M-3279-2015 OI Wong, Bryan/0000-0002-3477-8043; Ruud, Kenneth/0000-0003-1006-8482; Kumar, Neeraj/0000-0001-6713-2129 FU Ministry of Science and Higher Education (Poland) [N204 028336]; Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; Research Council of Norway through a Centre of Excellence [179568/V30, 177558/V30] FX This work was supported by the Ministry of Science and Higher Education (Poland) under grant no. N204 028336. The TURBOMOLE calculations were carried out in the Wroclaw Centre for Networking and Supercomputing, WCSS, Wroclaw, Poland, http://www.wcss.wroc.pl, under calculational grant no. 51/96.; Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.; K.R. has been supported by the Research Council of Norway through a Centre of Excellence Grant (grant no. 179568/V30) and research grant no. 177558/V30. NR 61 TC 57 Z9 57 U1 3 U2 30 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD FEB 24 PY 2011 VL 115 IS 7 BP 1280 EP 1292 DI 10.1021/jp110914y PG 13 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721FB UT WOS:000287337900016 PM 21280654 ER PT J AU Fawcett, PJ Werne, JP Anderson, RS Heikoop, JM Brown, ET Berke, MA Smith, SJ Goff, F Donohoo-Hurley, L Cisneros-Dozal, LM Schouten, S Damste, JSS Huang, YS Toney, J Fessenden, J WoldeGabriel, G Atudorei, V Geissman, JW Allen, CD AF Fawcett, Peter J. Werne, Josef P. Anderson, R. Scott Heikoop, Jeffrey M. Brown, Erik T. Berke, Melissa A. Smith, Susan J. Goff, Fraser Donohoo-Hurley, Linda Cisneros-Dozal, Luz M. Schouten, Stefan Damste, Jaap S. Sinninghe Huang, Yongsong Toney, Jaime Fessenden, Julianna WoldeGabriel, Giday Atudorei, Viorel Geissman, John W. Allen, Craig D. TI Extended megadroughts in the southwestern United States during Pleistocene interglacials SO NATURE LA English DT Article ID PAST 800,000 YEARS; CLIMATE VARIABILITY; NORTH-AMERICA; DROUGHT; MONSOON; RECONSTRUCTIONS; TRANSITION; ATLANTIC; AFRICA; RECORD AB The potential for increased drought frequency and severity linked to anthropogenic climate change in the semi-arid regions of the southwestern United States (US) is a serious concern(1). Multi-year droughts during the instrumental period(2) and decadal-length droughts of the past two millennia(1,3) were shorter and climatically different from the future permanent, 'dust-bowl-like' mega-drought conditions, lasting decades to a century, that are predicted as a consequence of warming(4). So far, it has been unclear whether or not such megadroughts occurred in the southwestern US, and, if so, with what regularity and intensity. Here we show that periods of aridity lasting centuries to millennia occurred in the southwestern US during mid-Pleistocene interglacials. Using molecular palaeo-temperature proxies(5) to reconstruct the mean annual temperature (MAT) in mid-Pleistocene lacustrine sediment from the Valles Caldera, New Mexico, we found that the driest conditions occurred during the warmest phases of interglacials, when the MAT was comparable to or higher than the modern MAT. A collapse of drought-tolerant C(4) plant communities during these warm, dry intervals indicates a significant reduction in summer precipitation, possibly in response to a poleward migration of the subtropical dry zone. Three MAT cycles similar to 2 degrees C in amplitude occurred within Marine Isotope Stage (MIS) 11 and seem to correspond to the muted precessional cycles within this interglacial. In comparison with MIS 11, MIS 13 experienced higher precessional-cycle amplitudes, larger variations in MAT (4-6 degrees C) and a longer period of extended warmth, suggesting that local insolation variations were important to interglacial climatic variability in the southwestern US. Comparison of the early MIS 11 climate record with the Holocene record shows many similarities and implies that, in the absence of anthropogenic forcing, the region should be entering a cooler and wetter phase. C1 [Fawcett, Peter J.; Goff, Fraser; Donohoo-Hurley, Linda; Atudorei, Viorel; Geissman, John W.] Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA. [Werne, Josef P.] Univ Minnesota, Dept Chem & Biochem, Duluth, MN 55812 USA. [Werne, Josef P.; Brown, Erik T.; Berke, Melissa A.] Univ Minnesota, Large Lakes Observ, Duluth, MN 55812 USA. [Brown, Erik T.; Berke, Melissa A.] Univ Minnesota, Dept Geol Sci, Duluth, MN 55812 USA. [Werne, Josef P.] Univ Western Australia, Ctr Water Res, Crawley, WA 6009, Australia. [Werne, Josef P.] Curtin Univ Technol, WA Organ & Isotope Geochem Ctr, Bentley, WA 6845, Australia. [Anderson, R. Scott; Fessenden, Julianna; WoldeGabriel, Giday] Univ Arizona, Sch Earth Sci & Environm Sustainabil, Flagstaff, AZ 86011 USA. [Anderson, R. Scott; Smith, Susan J.] Univ Arizona, Bilby Res Ctr, Lab Paleoecol, Flagstaff, AZ 86011 USA. [Heikoop, Jeffrey M.; Cisneros-Dozal, Luz M.; Toney, Jaime] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA. [Schouten, Stefan; Damste, Jaap S. Sinninghe] NIOZ Royal Netherlands Inst Sea Res, Dept Marine Organ Biogeochem, NL-1790 AB Den Burg, Netherlands. [Huang, Yongsong] Brown Univ, Dept Geol Sci, Providence, RI 02912 USA. [Allen, Craig D.] USGS Ft Collins Sci Ctr, Jemez Mt Field Stn, Los Alamos, NM 87544 USA. RP Fawcett, PJ (reprint author), Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA. EM fawcett@unm.edu RI Heikoop, Jeffrey/C-1163-2011; Toney, Jaime/I-5083-2012; Sinninghe Damste, Jaap/F-6128-2011; OI Toney, Jaime/0000-0003-3182-6887; Sinninghe Damste, Jaap/0000-0002-8683-1854; Heikoop, Jeffrey/0000-0001-7648-3385 FU NSF; IGPP LANL; USGS Western Mountain Initiative; Gledden Fellowship FX We thank A. Mets for analytical support, W. McIntosh for the Ar-Ar age determination, T. Wawrzyniec and A. Ellwein for drilling help, and the Valles Caldera Trust for permission to drill in the Valle Grande. Core assistance was provided by LRC/LacCore. This work was supported by the NSF Paleoclimate and P2C2 programs, IGPP LANL and the USGS Western Mountain Initiative. Support from the Gledden Fellowship is acknowledged. This work forms contribution 2399-JW at the Centre for Water Research, The University of Western Australia and contribution 131 at the Laboratory of Paleoecology, Northern Arizona University. NR 28 TC 63 Z9 70 U1 7 U2 115 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD FEB 24 PY 2011 VL 470 IS 7335 BP 518 EP 521 DI 10.1038/nature09839 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 725NT UT WOS:000287652900038 PM 21350483 ER PT J AU Li, B Piriz, J Mirrione, M Chung, CH Proulx, CD Schulz, D Henn, F Malinow, R AF Li, Bo Piriz, Joaquin Mirrione, Martine Chung, ChiHye Proulx, Christophe D. Schulz, Daniela Henn, Fritz Malinow, Roberto TI Synaptic potentiation onto habenula neurons in the learned helplessness model of depression SO NATURE LA English DT Article ID MIDBRAIN DOPAMINE NEURONS; DORSAL RAPHE NUCLEUS; LATERAL HABENULA; ANIMAL-MODEL; TRYPTOPHAN DEPLETION; RESPONSES; BEHAVIOR; STRESS; RAT; STIMULATION AB The cellular basis of depressive disorders is poorly understood(1). Recent studies in monkeys indicate that neurons in the lateral habenula (LHb), a nucleus that mediates communication between forebrain and midbrain structures, can increase their activity when an animal fails to receive an expected positive reward or receives a stimulus that predicts aversive conditions (that is, disappointment or anticipation of a negative outcome)(2-4). LHb neurons project to, and modulate, dopamine-rich regions, such as the ventral tegmental area (VTA)(2,5), that control reward-seeking behaviour(6) and participate in depressive disorders(7). Here we show that in two learned helplessness models of depression, excitatory synapses onto LHb neurons projecting to the VTA are potentiated. Synaptic potentiation correlates with an animal's helplessness behaviour and is due to an enhanced presynaptic release probability. Depleting transmitter release by repeated electrical stimulation of LHb afferents, using a protocol that can be effective for patients who are depressed(8,9), markedly suppresses synaptic drive onto VTA-projecting LHb neurons in brain slices and can significantly reduce learned helplessness behaviour in rats. Our results indicate that increased presynaptic action onto LHb neurons contributes to the rodent learned helplessness model of depression. C1 [Li, Bo; Piriz, Joaquin; Chung, ChiHye; Proulx, Christophe D.; Malinow, Roberto] Univ Calif San Diego, Ctr Neural Circuits & Behav, Dept Neurosci, La Jolla, CA 92093 USA. [Li, Bo; Piriz, Joaquin; Chung, ChiHye; Proulx, Christophe D.; Malinow, Roberto] Univ Calif San Diego, Ctr Neural Circuits & Behav, Dept Biol Sci, La Jolla, CA 92093 USA. [Li, Bo; Mirrione, Martine; Henn, Fritz] Cold Spring Harbor Lab, Cold Spring Harbor, NY 11724 USA. [Mirrione, Martine; Schulz, Daniela; Henn, Fritz] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Li, B (reprint author), Univ Calif San Diego, Ctr Neural Circuits & Behav, Dept Neurosci, 9500 Gilman Dr 0634, La Jolla, CA 92093 USA. EM bli@cshl.edu; rmalinow@ucsd.edu RI Schulz, Daniela/H-5625-2011; OI Li, Bo/0000-0002-0154-3088; Chung, ChiHye/0000-0002-3104-2399; Piriz, Joaquin/0000-0002-4588-6568 FU Dana Foundation; National Institute of Mental Health, National Institutes of Health [1R01MH091903-01]; Shiley-Marcos Endowment FX We thank K. Deisseroth for help and suggestions, A. Gifford and A. Biegon for sharing equipment and laboratory space, and members of the Malinow Lab and Li Lab for discussions. This study was supported by the Dana Foundation (B. L.), the Biobehavioral Research Awards for Innovative New Scientists (BRAINS) from the National Institute of Mental Health, National Institutes of Health (1R01MH091903-01) (B. L.) and the Shiley-Marcos Endowment (R.M.). NR 34 TC 169 Z9 177 U1 4 U2 35 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD FEB 24 PY 2011 VL 470 IS 7335 BP 535 EP U125 DI 10.1038/nature09742 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 725NT UT WOS:000287652900042 PM 21350486 ER PT J AU Su, CC Long, F Zimmermann, MT Rajashankar, KR Jernigan, RL Yu, EW AF Su, Chih-Chia Long, Feng Zimmermann, Michael T. Rajashankar, Kanagalaghatta R. Jernigan, Robert L. Yu, Edward W. TI Crystal structure of the CusBA heavy-metal efflux complex of Escherichia coli SO NATURE LA English DT Article ID MEMBRANE-FUSION PROTEIN; MULTIDRUG EFFLUX; PSEUDOMONAS-AERUGINOSA; PERIPLASMIC COMPONENT; PUMP; ACRB; SYSTEM; TRANSPORTER; SOFTWARE; CRYSTALLOGRAPHY AB Gram-negative bacteria, such as Escherichia coli, expel toxic chemicals through tripartite efflux pumps that span both the inner and outer membrane. The three parts are an inner membrane, substrate-binding transporter; a membrane fusion protein; and an outer-membrane-anchored channel. The fusion protein connects the transporter to the channel within the periplasmic space. A crystallographic model of this tripartite efflux complex has been unavailable because co-crystallization of the various components of the system has proven to be extremely difficult. We previously described the crystal structures of both the inner membrane transporter CusA(1) and the membrane fusion protein CusB(2) of the CusCBA efflux system(3,4) of E. coli. Here we report the co-crystal structure of the CusBA efflux complex, showing that the transporter (or pump) CusA, which is present as a trimer, interacts with six CusB protomers and that the periplasmic domain of CusA is involved in these interactions. The six CusB molecules seem to form a continuous channel. The affinity of the CusA and CusB interaction was found to be in the micromolar range. Finally, we have predicted a three-dimensional structure for the trimeric CusC outer membrane channel and developed a model of the tripartite efflux assemblage. This CusC(3)-CusB(6)-CusA(3) model shows a 750-kilodalton efflux complex that spans the entire bacterial cell envelope and exports Cu I and Ag I ions. C1 [Su, Chih-Chia; Long, Feng; Yu, Edward W.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Zimmermann, Michael T.; Jernigan, Robert L.; Yu, Edward W.] Iowa State Univ, Bioinformat & Computat Biol Interdept Grad Progra, Ames, IA 50011 USA. [Rajashankar, Kanagalaghatta R.] Cornell Univ, Argonne Natl Lab, Dept Chem & Chem Biol, Argonne, IL 60439 USA. [Rajashankar, Kanagalaghatta R.] Cornell Univ, Argonne Natl Lab, NE CAT, Argonne, IL 60439 USA. [Jernigan, Robert L.; Yu, Edward W.] Iowa State Univ, Dept Biochem Biophys & Mol Biol, Ames, IA 50011 USA. [Yu, Edward W.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Yu, EW (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM ewyu@iastate.edu RI Long, Feng/F-5475-2011; Jernigan, Robert/A-5421-2012; OI Long, Feng/0000-0001-6313-8558; Zimmermann, Michael/0000-0001-7073-0525 FU National Institutes of Health [R01GM074027, R01GM086431, R01GM081680, R01GM072014]; National Center for Research Resources at the National Institutes of Health [RR-15301]; US Department of Energy, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work is supported by National Institutes of Health grants R01GM074027 (E.W.Y.), R01GM086431 (E.W.Y.), R01GM081680 (R.L.J.) and R01GM072014 (R.L.J.). This work is based on research conducted at the Northeastern Collaborative Access Team beamlines of the Advanced Photon Source, supported by award RR-15301 from the National Center for Research Resources at the National Institutes of Health. Use of the Advanced Photon Source is supported by the US Department of Energy, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357. NR 33 TC 95 Z9 95 U1 1 U2 34 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD FEB 24 PY 2011 VL 470 IS 7335 BP 558 EP U153 DI 10.1038/nature09743 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 725NT UT WOS:000287652900047 PM 21350490 ER PT J AU Volkow, ND Baler, RD Goldstein, RZ AF Volkow, Nora D. Baler, Ruben D. Goldstein, Rita Z. TI Addiction: Pulling at the Neural Threads of Social Behaviors SO NEURON LA English DT Editorial Material ID PREFRONTAL CORTEX; DRUG-ABUSE AB Addiction coopts the brain's neuronal circuits necessary for insight, reward, motivation, and social behaviors. This functional overlap results in addicted individuals making poor choices despite awareness of the negative consequences; it explains why previously rewarding life situations and the threat of judicial punishment cannot stop drug taking and why a medical rather than a criminal approach is more effective in curtailing addiction. C1 [Volkow, Nora D.; Baler, Ruben D.] Natl Inst Drug Abuse, NIH, Bethesda, MD 20892 USA. [Goldstein, Rita Z.] Brookhaven Natl Lab, Ctr Translat Neuroimaging, Dept Med Res, Upton, NY 11973 USA. RP Volkow, ND (reprint author), Natl Inst Drug Abuse, NIH, Bethesda, MD 20892 USA. EM nvolkow@nida.nih.gov FU Intramural NIH HHS [Z99 DA999999] NR 19 TC 67 Z9 69 U1 2 U2 15 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0896-6273 J9 NEURON JI Neuron PD FEB 24 PY 2011 VL 69 IS 4 BP 599 EP 602 DI 10.1016/j.neuron.2011.01.027 PG 4 WC Neurosciences SC Neurosciences & Neurology GA 735KO UT WOS:000288413200005 PM 21338873 ER PT J AU Marty, K Christianson, AD Wang, CH Matsuda, M Cao, H VanBebber, LH Zarestky, JL Singh, DJ Sefat, AS Lumsden, MD AF Marty, K. Christianson, A. D. Wang, C. H. Matsuda, M. Cao, H. VanBebber, L. H. Zarestky, J. L. Singh, D. J. Sefat, A. S. Lumsden, M. D. TI Competing magnetic ground states in nonsuperconducting Ba(Fe1-xCrx)(2)As-2 as seen via neutron diffraction SO PHYSICAL REVIEW B LA English DT Article AB We present neutron diffraction measurements on single-crystal samples of nonsuperconducting Ba(Fe1-xCrx)(2)As-2 as a function of Cr doping for 0 <= x <= 0.47. The average spin-density-wave moment is independent of concentration for x <= 0.2 and decreases rapidly for x >= 0.3. For concentrations in excess of 30% chromium, we find a new competing magnetic phase consistent with G-type antiferromagnetism which rapidly becomes the dominant magnetic ground state. Strong magnetism is observed for all concentrations measured, naturally explaining the absence of superconductivity in the Cr-doped materials. C1 [Marty, K.; Christianson, A. D.; Wang, C. H.; Matsuda, M.; Cao, H.; Zarestky, J. L.; Singh, D. J.; Sefat, A. S.; Lumsden, M. D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [VanBebber, L. H.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Zarestky, J. L.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Zarestky, J. L.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Marty, K (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RI Sefat, Athena/R-5457-2016; Lumsden, Mark/F-5366-2012; Singh, David/I-2416-2012; christianson, andrew/A-3277-2016; Cao, Huibo/A-6835-2016; Matsuda, Masaaki/A-6902-2016 OI Sefat, Athena/0000-0002-5596-3504; Lumsden, Mark/0000-0002-5472-9660; christianson, andrew/0000-0003-3369-5884; Cao, Huibo/0000-0002-5970-4980; Matsuda, Masaaki/0000-0003-2209-9526 FU Scientific User Facilities Division; Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US DOE; NSF [NSF-DMR-0804719] FX Research at ORNL is sponsored by the Scientific User Facilities Division and the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US DOE. Work at The University of Tennessee is supported by NSF grant NSF-DMR-0804719. We acknowledge discussions with B. C. Chakoumakos, B. C. Sales, M. A. McGuire, D. Mandrus, and V. Keppens. We thank J. W. Lynn for the use of his Heusler analyzer crystal and S. Kulan for technical support. NR 24 TC 47 Z9 47 U1 0 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 24 PY 2011 VL 83 IS 6 AR 060509 DI 10.1103/PhysRevB.83.060509 PG 4 WC Physics, Condensed Matter SC Physics GA 726IB UT WOS:000287712600002 ER PT J AU Doumy, G Roedig, C Son, SK Blaga, CI DiChiara, AD Santra, R Berrah, N Bostedt, C Bozek, JD Bucksbaum, PH Cryan, JP Fang, L Ghimire, S Glownia, JM Hoener, M Kanter, EP Krassig, B Kuebel, M Messerschmidt, M Paulus, GG Reis, DA Rohringer, N Young, L Agostini, P DiMauro, LF AF Doumy, G. Roedig, C. Son, S. -K. Blaga, C. I. DiChiara, A. D. Santra, R. Berrah, N. Bostedt, C. Bozek, J. D. Bucksbaum, P. H. Cryan, J. P. Fang, L. Ghimire, S. Glownia, J. M. Hoener, M. Kanter, E. P. Kraessig, B. Kuebel, M. Messerschmidt, M. Paulus, G. G. Reis, D. A. Rohringer, N. Young, L. Agostini, P. DiMauro, L. F. TI Nonlinear Atomic Response to Intense Ultrashort X Rays SO PHYSICAL REVIEW LETTERS LA English DT Article ID SHELL; IONIZATION; GENERATION; EXCITATION; HARMONICS AB The nonlinear absorption mechanisms of neon atoms to intense, femtosecond kilovolt x rays are investigated. The production of Ne(9+) is observed at x-ray frequencies below the Ne(8+), 1s(2) absorption edge and demonstrates a clear quadratic dependence on fluence. Theoretical analysis shows that the production is a combination of the two-photon ionization of Ne(8+) ground state and a high-order sequential process involving single-photon production and ionization of transient excited states on a time scale faster than the Auger decay. We find that the nonlinear direct two-photon ionization cross section is orders of magnitude higher than expected from previous calculations. C1 [Doumy, G.; Roedig, C.; Blaga, C. I.; DiChiara, A. D.; Agostini, P.; DiMauro, L. F.] Ohio State Univ, Columbus, OH 43210 USA. [Doumy, G.; Kanter, E. P.; Kraessig, B.; Young, L.] Argonne Natl Lab, Argonne, IL 60439 USA. [Son, S. -K.; Santra, R.] DESY, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany. [Santra, R.] Univ Hamburg, Dept Phys, D-20355 Hamburg, Germany. [Berrah, N.; Fang, L.; Hoener, M.] Western Michigan Univ, Kalamazoo, MI 49008 USA. [Bostedt, C.; Bozek, J. D.; Messerschmidt, M.] SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA. [Bucksbaum, P. H.; Cryan, J. P.; Ghimire, S.; Glownia, J. M.; Reis, D. A.] SLAC Natl Accelerator Lab, Stanford PULSE Inst, Menlo Pk, CA 94025 USA. [Kuebel, M.; Paulus, G. G.] Inst Opt & Quantum Elect, D-07743 Jena, Germany. [Rohringer, N.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Doumy, G (reprint author), Ohio State Univ, Columbus, OH 43210 USA. RI Messerschmidt, Marc/F-3796-2010; Paulus, Gerhard/A-7617-2010; Rohringer, Nina/B-8030-2012; Bozek, John/E-9260-2010; Santra, Robin/E-8332-2014; Rohringer, Nina/N-3238-2014; Son, Sang-Kil/J-7637-2016; OI Messerschmidt, Marc/0000-0002-8641-3302; Paulus, Gerhard/0000-0002-8343-8811; Bozek, John/0000-0001-7486-7238; Santra, Robin/0000-0002-1442-9815; Rohringer, Nina/0000-0001-7905-3567; Son, Sang-Kil/0000-0001-5395-632X; Kubel, Matthias/0000-0001-6065-6122 FU U.S. Department of Energy, Office of Basic Energy Sciences; DOE/BES [DE-FG02-04ER15614, DE-AC02-06CH11357, DE-FG02-92ER14299, DE-AC52-07NA27344] FX Portions of this research were carried out at the LCLS at the SLAC National Accelerator Laboratory. LCLS is funded by the U.S. Department of Energy, Office of Basic Energy Sciences. The work was funded by the DOE/BES under Contracts No. DE-FG02-04ER15614, No. DE-AC02-06CH11357, No. DE-FG02-92ER14299, and No. DE-AC52-07NA27344. Research of P. H. B., D. A. R., J. M. G., J. P. S., and S. G. is supported through PULSE at SLAC by DOE/BES. NR 18 TC 125 Z9 125 U1 6 U2 43 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 FEB 24 PY 2011 VL 106 IS 8 AR 083002 DI 10.1103/PhysRevLett.106.083002 PG 4 WC Physics, Multidisciplinary SC Physics GA 726IV UT WOS:000287714900007 PM 21405568 ER PT J AU Polking, MJ Zheng, HM Ramesh, R Alivisatos, AP AF Polking, Mark J. Zheng, Haimei Ramesh, Ramamoorthy Alivisatos, A. Paul TI Controlled Synthesis and Size-Dependent Polarization Domain Structure of Colloidal Germanium Telluride Nanocrystals SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID BARIUM-TITANATE; GETE; DIFFRACTION; TRANSITION; NANOWIRES AB Germanium telluride (GeTe) exhibits interesting materials properties, including a reversible amorphous-to-crystalline phase transition and a room-temperature ferroelectric distortion, and has demonstrated potential for nonvolatile memory applications. Here, a colloidal approach to the synthesis of GeTe nanocrystals over a wide range of sizes is demonstrated. These nanocrystals have size distributions of 10-20% and exist in the rhombohedral structure characteristic of the low-temperature polar phase. The production of nanocrystals of widely varying sizes is facilitated by the use of Ge(II) precursors with different reactivities. A transition from a monodomain state to a state with multiple polarization domains is observed with increasing size, leading to the formation of richly faceted nanostructures. These results provide a starting point for deeper investigation into the size-scaling and fundamental nature of polar-ordering and phase-change processes in nanoscale systems. C1 [Polking, Mark J.; Ramesh, Ramamoorthy] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Zheng, Haimei; Alivisatos, A. Paul] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Zheng, Haimei] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA. [Ramesh, Ramamoorthy; Alivisatos, A. Paul] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Ramesh, R (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. EM rramesh@berkeley.edu; alivis@berkeley.edu RI Alivisatos , Paul /N-8863-2015 OI Alivisatos , Paul /0000-0001-6895-9048 FU U.S. Department of Energy [DE-AC02-OSCH11231]; National Science Foundation; Research Traineeship (IGERT) FX The authors thank Dmitri Talapin, Jonathan ben, Ronald Gronsky, Jeffrey Urban, and Delia Milliron for helpful discussions and Paul Trudeau for technical assistance. Transmission electron microscopy work performed at the National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-OSCH11231. The remainder of this work was supported under the Physical Chemistry of Nanocrystals Project of the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-OSCH11231. M.J.P. was supported by a National Science Foundation Graduate Research Fellowship and by a National Science Foundation Integrated Graduate Education and Research Traineeship (IGERT) fellowship. NR 26 TC 30 Z9 32 U1 3 U2 49 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 FEB 23 PY 2011 VL 133 IS 7 BP 2044 EP 2047 DI 10.1021/ja108309s PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 728YA UT WOS:000287909200011 PM 21280629 ER PT J AU Piro, NA Lichterman, MF Harman, WH Chang, CJ AF Piro, Nicholas A. Lichterman, Michael F. Harman, W. Hill Chang, Christopher J. TI A Structurally Characterized Nitrous Oxide Complex of Vanadium SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID OXYGEN-ATOM TRANSFER; DINITROGEN OXIDE; CRYSTAL-STRUCTURE; METAL CENTERS; N2O; REACTIVITY; ACTIVATION; OXIDATION; REDUCTION; BINDING AB Nitrous oxide (N(2)O), a widespread greenhouse gas, is a thermodynamically potent and environmentally green oxidant that is an attractive target for activation by metal centers. However, N(2)O remains underutilized owing to its high kinetic stability, and the poor ligand properties of this molecule have made well-characterized metal-N(2)O complexes a rarity. We now report a vanadium-pyrrolide system that reversibly binds N(2)O at room temperature and provide the first single-crystal X-ray structure of such a complex. Further characterization by vibrational spectroscopy and DFT calculations strongly favor assignment as a linear, N-bound metal-N(2)O complex. C1 [Piro, Nicholas A.; Lichterman, Michael F.; Harman, W. Hill; Chang, Christopher J.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Chang, Christopher J.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Harman, W. Hill; Chang, Christopher J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Chang, CJ (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM chrischang@berkeley.edu FU DOE/LBNL [403801]; Packard Foundation; Miller Institute for Basic Research; Arkema; National Science Foundation [CHE-0840505] FX This work was supported by DOE/LBNL Grant 403801 and the Packard Foundation. C.J.C. is an Investigator with the Howard Hughes Medical Institute. We thank the Miller Institute for Basic Research (N.A.P.) and Arkema (W.H.H.) for fellowship support. Computational facilities used in this study were funded in part by the National Science Foundation grant CHE-0840505. We thank Joe Zadrozny and Prof. Jeff Long for the acquisition of SQUID data, and Profs. F. Dean Toste and Robert G. Bergman for use of their groups' in situ IR spectrophotometer. NR 45 TC 36 Z9 36 U1 3 U2 41 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 FEB 23 PY 2011 VL 133 IS 7 BP 2108 EP 2111 DI 10.1021/ja110798w PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 728YA UT WOS:000287909200027 PM 21287986 ER PT J AU Kogan, VG Schmalian, J AF Kogan, V. G. Schmalian, J. TI Ginzburg-Landau theory of two-band superconductors: Absence of type-1.5 superconductivity SO PHYSICAL REVIEW B LA English DT Article ID EQUATIONS AB It is shown that within the Ginzburg-Landau (GL) approximation the order parameters Delta(1)(r, T) and Delta(2)(r, T) in two-band superconductors vary on the same length scale, the difference in zero-T coherence lengths xi(0v) similar to hv(Fv)/Delta(v)(0), v = 1,2 notwithstanding. This amounts to a single physical GL parameter kappa and the classic GL dichotomy: kappa < 1/root 2 for type I and kappa > 1/root 2 for type II. C1 [Kogan, V. G.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Kogan, VG (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RI Schmalian, Joerg/H-2313-2011 FU DOE-Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358] FX Discussions with R. Fernandes, J. Geyer, J. Clem, R. Prozorov, M. Das, M. Milosevic, M. Zhitomirsky, A. Gurevich, R. Mints, J. Berger, and L. Bulaevskii are gratefully appreciated. The work was supported by the DOE-Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Contract No. DE-AC02-07CH11358. NR 27 TC 54 Z9 54 U1 1 U2 17 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 23 PY 2011 VL 83 IS 5 AR 054515 DI 10.1103/PhysRevB.83.054515 PG 5 WC Physics, Condensed Matter SC Physics GA 725OA UT WOS:000287653700009 ER PT J AU Chu, W Gao, XG Phillips, TJ Sorooshian, S AF Chu, Wei Gao, Xiaogang Phillips, Thomas J. Sorooshian, Soroosh TI Consistency of spatial patterns of the daily precipitation field in the western United States and its application to precipitation disaggregation SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID EOF ANALYSIS; GENERAL-CIRCULATION; NORTH-AMERICA; VARIABILITY; SPACE; 1990S AB We investigate spatial patterns of daily precipitation field in the western United States, in order to improve assessment and disaggregation of climate model simulation. Empirical Orthogonal Function (EOF) analysis reveals that the spatial pattern of daily precipitation has not changed saliently in the region over the period 1948-2008. Results show that, even at very fine spatial (.25 degrees x .25 degrees) and temporal (daily) resolutions, a small number (similar to 15) of leading EOFs can explain about 90% of the total variance of the time-series of the entire precipitation field, having more than 6,000 grid cells. Moreover, the identified leading EOFs demonstrate consistency over time and across different spatial resolutions. Utilizing this consistency, an empirical method of disaggregating the precipitation output of climate models in this region is introduced. Illustrative results exhibit the feasibility and potency of this method. The advantages and limitations of this method are discussed as well. Citation: Chu, W., X. Gao, T. J. Phillips, and S. Sorooshian (2011), Consistency of spatial patterns of the daily precipitation field in the western United States and its application to precipitation disaggregation, Geophys. Res. Lett., 38, L04403, doi:10.1029/2010GL046473. C1 [Chu, Wei; Gao, Xiaogang; Sorooshian, Soroosh] Univ Calif Irvine, Dept Civil & Environm Engn, Irvine, CA 92697 USA. [Phillips, Thomas J.] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA 94551 USA. RP Chu, W (reprint author), Univ Calif Irvine, Dept Civil & Environm Engn, Irvine, CA 92697 USA. RI sorooshian, soroosh/B-3753-2008 OI sorooshian, soroosh/0000-0001-7774-5113 FU University of California [09-LR-09-116849-SORS]; NOAA [NA08OAR4310876, NA05OAR4310062]; NASA [NNX09AO67G] FX We are very grateful to two anonymous reviewers for their valuable and constructive comments. This research was supported by UCOP program of University of California (grant 09-LR-09-116849-SORS), CPPA program of NOAA (grants NA08OAR4310876 and NA05OAR4310062), and ROSES program of NASA (grant NNX09AO67G). NR 21 TC 0 Z9 0 U1 0 U2 4 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 FEB 23 PY 2011 VL 38 AR L04403 DI 10.1029/2010GL046473 PG 6 WC Geosciences, Multidisciplinary SC Geology GA 727NN UT WOS:000287808000005 ER PT J AU Gudkov, V Shimizu, HM Greene, GL AF Gudkov, Vladimir Shimizu, Hirohiko M. Greene, Geoffrey L. TI Parametric resonance enhancement in neutron interferometry and application for the search for non-Newtonian gravity SO PHYSICAL REVIEW C LA English DT Article ID EARTHS GRAVITATIONAL-FIELD; ONE-DIMENSIONAL SCATTERING; LEVINSONS THEOREM; QUANTUM STATES; ENERGY; CONSTRAINTS; MILLIMETER; AMPLITUDES; EQUATION; SYSTEMS AB The parametric resonance enhancement of the phase of neutrons due to non-Newtonian anomalous gravitation is considered. The existence of such resonances is confirmed by numerical calculations. A possible experimental scheme for observing this effect is discussed based on an existing neutron interferometer design. C1 [Gudkov, Vladimir] Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA. [Shimizu, Hirohiko M.] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan. [Greene, Geoffrey L.] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. [Greene, Geoffrey L.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. RP Gudkov, V (reprint author), Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA. FU DOE [DE-FG02-09ER41621, DE-FG02-03ER41258] FX This work was supported by DOE Grants No. DE-FG02-09ER41621 and No. DE-FG02-03ER41258. NR 54 TC 3 Z9 3 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD FEB 23 PY 2011 VL 83 IS 2 AR 025501 DI 10.1103/PhysRevC.83.025501 PG 10 WC Physics, Nuclear SC Physics GA 725OK UT WOS:000287654800002 ER PT J AU Bernard, C Detar, C Di Pierro, M El-Khadra, AX Evans, RT Freeland, ED Gamiz, E Gottlieb, S Heller, UM Hetrick, JE Kronfeld, AS Laiho, J Levkova, L Mackenzie, PB Simone, JN Sugar, R Toussaint, D Van de Water, RS AF Bernard, C. DeTar, C. Di Pierro, M. El-Khadra, A. X. Evans, R. T. Freeland, E. D. Gamiz, E. Gottlieb, Steven Heller, U. M. Hetrick, J. E. Kronfeld, A. S. Laiho, J. Levkova, L. Mackenzie, P. B. Simone, J. N. Sugar, R. Toussaint, D. Van de Water, R. S. CA Fermilab Lattice & MILC Collaborat TI Tuning Fermilab heavy quarks in 2+1 flavor lattice QCD with application to hyperfine splittings SO PHYSICAL REVIEW D LA English DT Article ID STAGGERED LIGHT QUARKS; GAUGE-THEORIES; PERTURBATION-THEORY; CONTINUUM-LIMIT; FERMIONS; SYMMETRY; SIMULATIONS; COMPUTATION; SPECTRUM; DECAYS AB We report the nonperturbative tuning of parameters-kappa(c), kappa(b), and kappa(crit)-that are related to the bare heavy-quark mass in the Fermilab action. This requires the computation of the masses of D-s(*) B-s(*) and mesons comprised of a Fermilab heavy quark and a staggered light quark. Additionally, we report the hyperfine splittings for D-s(*) and B-s(*) mesons as a cross-check of our simulation and analysis methods. We find a splitting of 145 +/- 15 MeV for the D-s system and 40 +/- 9 MeV for the Bs system. These are in good agreement with the Particle Data Group average values of 143: 9 +/- 0: 4 MeV and 46: 1 +/- 1.5 MeV, respectively. The calculations are carried out with the MILC 2 + 1 flavor gauge configurations at three lattice spacings a approximate to 0: 15, 0.12, and 0.09 fm. C1 [Bernard, C.; Freeland, E. D.; Laiho, J.] Washington Univ, Dept Phys, St Louis, MO 63130 USA. [DeTar, C.; Levkova, L.] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA. [Di Pierro, M.] Depaul Univ, Sch Comp, Chicago, IL 60604 USA. [El-Khadra, A. X.; Evans, R. T.; Gamiz, E.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Evans, R. T.] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany. [Gamiz, E.; Kronfeld, A. S.; Mackenzie, P. B.; Simone, J. N.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Gottlieb, Steven] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA. [Gottlieb, Steven] Univ Illinois, Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA. [Heller, U. M.] Amer Phys Soc, Ridge, NY 11961 USA. [Hetrick, J. E.] Univ Pacific, Dept Phys, Stockton, CA 95211 USA. [Laiho, J.] Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland. [Sugar, R.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA. [Toussaint, D.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA. [Van de Water, R. S.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Bernard, C (reprint author), Washington Univ, Dept Phys, St Louis, MO 63130 USA. EM eliz@fnal.gov RI Gamiz, Elvira/E-8009-2016; OI Gamiz, Elvira/0000-0001-5125-2687; Simone, James/0000-0001-8515-3337; Hetrick, James/0000-0002-0740-2251; Heller, Urs M./0000-0002-2780-5584 FU Office of Science of the U.S. Department of Energy; U.S. Department of Energy [DE-FC02-06ER41446, DE-FG02-91ER40661, DE-FG02-91ER40677, DE-FG02-91ER40628, DE-FG02-04ER-41298, DE-AC02-98CH10886, DE-AC02-07CH11359]; National Science Foundation [PHY-0555243, NPHY-0757333, PHY-0703296, PHY-0757035, PHY-0704171, PHY-0555235]; Universities Research Associates; American Physical Society; BNL FX Computations for this work were carried out on facilities of the USQCD Collaboration, which are funded by the Office of Science of the U.S. Department of Energy. This work was supported in part by the U.S. Department of Energy under Grant Nos. DE-FC02-06ER41446 (C. D., L. L.), DE-FG02-91ER40661 (S. G.), DE-FG02-91ER40677 (A. X. K., E. G., R. T. E.), DE-FG02-91ER40628 (C. B, E. D. F.), and DE-FG02-04ER-41298 (D. T.); the National Science Foundation under Grant Nos. PHY-0555243, NPHY-0757333, PHY-0703296 (C. D., L. L.), PHY-0757035 (R. S.), PHY-0704171 (J. E. H.), and PHY-0555235 (E. D. F.); the Universities Research Associates (R. T. E., E. G.), and the M. Hildred Blewett Scholarship of the American Physical Society (E. D. F.). This manuscript has been co-authored by an employee of Brookhaven Science Associates, LLC, under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. R. S. V. acknowledges support from BNL via the Goldhaber Distinguished Fellowship. Fermilab is operated by Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. NR 81 TC 35 Z9 35 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB 23 PY 2011 VL 83 IS 3 AR 034503 DI 10.1103/PhysRevD.83.034503 PG 29 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 725OP UT WOS:000287655300007 ER PT J AU Bertone, G Kong, KC de Austri, RR Trotta, R AF Bertone, Gianfranco Kong, Kyoungchul Ruiz de Austri, Roberto Trotta, Roberto TI Global fits of the minimal universal extra dimensions scenario SO PHYSICAL REVIEW D LA English DT Article ID DARK-MATTER; PARTICLE; PHENOMENOLOGY; PHYSICS AB In theories with universal extra dimensions (UED), the gamma(1) particle, first excited state of the hypercharge gauge boson, provides an excellent dark matter (DM) candidate. Here, we use a modified version of the SUPERBAYES code to perform a Bayesian analysis of the minimal UED scenario, in order to assess its detectability at accelerators and with DM experiments. We derive, in particular, the most probable range of mass and scattering cross sections off nucleons, keeping into account cosmological and electroweak precision constraints. The consequences for the detectability of the gamma(1) with direct and indirect experiments are dramatic. The spin-independent cross section probability distribution peaks at similar to 10(-11) pb, i.e. below the sensitivity of ton-scale experiments. The spin-dependent cross section drives the predicted neutrino flux from the center of the Sun below the reach of present and upcoming experiments. The only strategy that remains open appears to be direct detection with ton-scale experiments sensitive to spin-dependent cross sections. On the other hand, the LHC with 1 fb(-1) of data should be able to probe the current best-fit UED parameters. C1 [Bertone, Gianfranco] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland. [Bertone, Gianfranco] Univ P&M Curie, Inst Astrophys Paris, CNRS, UMR 7095, F-75014 Paris, France. [Kong, Kyoungchul] SLAC, Dept Theoret Phys, Menlo Pk, CA 94025 USA. [Kong, Kyoungchul] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA. [Ruiz de Austri, Roberto] CSIC, Inst Fis Corpuscular, IFIC UV, Valencia, Spain. [Trotta, Roberto] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2AZ, England. RP Bertone, G (reprint author), Univ Zurich, Inst Theoret Phys, Winterthurerst 190, CH-8057 Zurich, Switzerland. FU MEC (Spain) [FPA2007-60323]; Generalitat Valenciana [PROMETEO/2008/069]; Spanish Consolider Ingenio-2010 Program PAU [CSD2007-00060]; Spanish MICINN [MULTIDARK CSD2209-00064]; DOE [DE-AC02-76SF00515]; EU; Training Network UniverseNet [MRTN-CT-2006-35863] FX The authors would like to thank Tim Tait for useful comments. The work of R. RdA has been supported in part by MEC (Spain) under grant FPA2007-60323, by Generalitat Valenciana under Grant No. PROMETEO/2008/069 and by the Spanish Consolider Ingenio-2010 Program PAU (CSD2007-00060). R. RdA would like to thank the support of the Spanish MICINN's Consolider-Ingenio 2010 Program under the Grant No. MULTIDARK CSD2209-00064. SLAC is supported in part by the DOE under Contract No. DE-AC02-76SF00515. R. T. would like to thank SLAC for hospitality during the completion of this work and the EU FP6 Marie Curie Research and Training Network UniverseNet (MRTN-CT-2006-35863) for partial support. The use of Imperial College High Performance Computing Service is gratefully acknowledged. NR 75 TC 21 Z9 21 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB 23 PY 2011 VL 83 IS 3 AR 036008 DI 10.1103/PhysRevD.83.036008 PG 15 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 725OP UT WOS:000287655300012 ER PT J AU Dubi, Y Balatsky, AV AF Dubi, Yonatan Balatsky, Alexander V. TI Hybridization Wave as the "Hidden Order" in URu2Si2 SO PHYSICAL REVIEW LETTERS LA English DT Article ID ELECTRON SUPERCONDUCTOR URU2SI2; HEAVY-FERMION COMPOUNDS; KONDO-LATTICE; SURFACE; EXCITATIONS; TRANSITION; SYSTEM; FIELD AB A phenomenological model for the "hidden order'' transition in the heavy-Fermion material URu2Si2 is introduced. The hidden order is identified as an incommensurate, momentum-carrying hybridization between the light hole band and the heavy electron band. This modulated hybridization appears after a Fano hybridization at higher temperatures takes place. We focus on the hybridization wave as the order parameter in URu2Si2 and possibly other materials with similar band structures. The model is qualitatively consistent with numerous experimental results obtained from, e.g., neutron scattering and scanning tunneling microscopy. Specifically, we find a gaplike feature in the density of states and the appearance of features at an incommensurate vector Q* similar to 0.6 pi/a(0). Finally, the model allows us to make various predictions which are amenable to current experiments. C1 [Dubi, Yonatan; Balatsky, Alexander V.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Balatsky, Alexander V.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Dubi, Y (reprint author), Tel Aviv Univ, Sch Phys & Astron, Tel Aviv, Israel. RI Dubi, Yonatan/G-5304-2013 FU BES; [UCOP-TR-01]; [DE-AC52-06NA25396] FX We thank P. Wolfle, M. Graf, A. Chantis, K. Haule, T. Durakiewicz, G. Kotliar, and J.-X. Zhu for valuable discussions, and A. Schmidt, M. Hamidian and C. S. Davis for stimulating discussions and for sharing with us their STM data. This work was supported by BES, UCOP-TR-01 and in part, by grant No. DE-AC52-06NA25396 and NR 33 TC 49 Z9 49 U1 0 U2 11 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 FEB 23 PY 2011 VL 106 IS 8 AR 086401 DI 10.1103/PhysRevLett.106.086401 PG 4 WC Physics, Multidisciplinary SC Physics GA 725PB UT WOS:000287656700011 PM 21405588 ER PT J AU Volkow, ND Tomasi, D Wang, GJ Vaska, P Fowler, JS Telang, F Alexoff, D Logan, J Wong, C AF Volkow, Nora D. Tomasi, Dardo Wang, Gene-Jack Vaska, Paul Fowler, Joanna S. Telang, Frank Alexoff, Dave Logan, Jean Wong, Christopher TI Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION LA English DT Article ID CEREBRAL-BLOOD-FLOW; MOBILE PHONES; ELECTROMAGNETIC-FIELDS; MAGNETIC STIMULATION; TELEPHONE USE; PET; ACTIVATION; RADIATION; HUMANS; CORTEX AB Context The dramatic increase in use of cellular telephones has generated concern about possible negative effects of radiofrequency signals delivered to the brain. However, whether acute cell phone exposure affects the human brain is unclear. Objective To evaluate if acute cell phone exposure affects brain glucose metabolism, a marker of brain activity. Design, Setting, and Participants Randomized crossover study conducted between January 1 and December 31, 2009, at a single US laboratory among 47 healthy participants recruited from the community. Cell phones were placed on the left and right ears and positron emission tomography with ((18)F) fluorodeoxyglucose injection was used to measure brain glucose metabolism twice, once with the right cell phone activated (sound muted) for 50 minutes ("on" condition) and once with both cell phones deactivated ("off" condition). Statistical parametric mapping was used to compare metabolism between on and off conditions using paired t tests, and Pearson linear correlations were used to verify the association of metabolism and estimated amplitude of radiofrequency-modulated electromagnetic waves emitted by the cell phone. Clusters with at least 1000 voxels (volume >8 cm(3)) and P<.05 (corrected for multiple comparisons) were considered significant. Main Outcome Measure Brain glucose metabolism computed as absolute metabolism (mu mol/100 g per minute) and as normalized metabolism (region/whole brain). Results Whole-brain metabolism did not differ between on and off conditions. In contrast, metabolism in the region closest to the antenna (orbitofrontal cortex and temporal pole) was significantly higher for on than off conditions (35.7 vs 33.3 mu mol/100 g per minute; mean difference, 2.4 [95% confidence interval, 0.67-4.2]; P=.004). The increases were significantly correlated with the estimated electromagnetic field amplitudes both for absolute metabolism (R=0.95, P<.001) and normalized metabolism (R=0.89; P<.001). Conclusions In healthy participants and compared with no exposure, 50-minute cell phone exposure was associated with increased brain glucose metabolism in the region closest to the antenna. This finding is of unknown clinical significance. JAMA. 2011; 305(8): 808-814 C1 [Volkow, Nora D.] Natl Inst Drug Abuse, Bethesda, MD 20892 USA. [Volkow, Nora D.; Tomasi, Dardo; Telang, Frank; Wong, Christopher] NIAAA, Bethesda, MD USA. [Wang, Gene-Jack; Vaska, Paul; Fowler, Joanna S.; Alexoff, Dave; Logan, Jean] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. RP Volkow, ND (reprint author), Natl Inst Drug Abuse, 6001 Execut Blvd,Room 5274, Bethesda, MD 20892 USA. EM nvolkow@nida.nih.gov RI Tomasi, Dardo/J-2127-2015 FU National Institutes of Health (NIH) FX This study was carried out at Brookhaven National Laboratory (BNL) and was supported by the Intramural Research Program of the National Institutes of Health (NIH) and by infrastructure support from the Department of Energy. NR 36 TC 84 Z9 92 U1 4 U2 36 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610-0946 USA SN 0098-7484 J9 JAMA-J AM MED ASSOC JI JAMA-J. Am. Med. Assoc. PD FEB 23 PY 2011 VL 305 IS 8 BP 808 EP 813 DI 10.1001/jama.2011.186 PG 6 WC Medicine, General & Internal SC General & Internal Medicine GA 724RQ UT WOS:000287594300024 PM 21343580 ER PT J AU Kim, MG Pratt, DK Rustan, GE Tian, W Zarestky, JL Thaler, A Bud'ko, SL Canfield, PC McQueeney, RJ Kreyssig, A Goldman, AI AF Kim, M. G. Pratt, D. K. Rustan, G. E. Tian, W. Zarestky, J. L. Thaler, A. Bud'ko, S. L. Canfield, P. C. McQueeney, R. J. Kreyssig, A. Goldman, A. I. TI Magnetic ordering and structural distortion in Ru-doped BaFe2As2 single crystals studied by neutron and x-ray diffraction SO PHYSICAL REVIEW B LA English DT Article AB We present a systematic investigation of the antiferromagnetic ordering and structural distortion for the series of Ba(Fe1-xRux)(2)As-2 compounds (0 <= x <= 0.246). Neutron and x-ray diffraction measurements demonstrate that, unlike for the electron-doped compounds, the structural and magnetic transitions remain coincident in temperature. Both the magnetic and structural transitions are gradually suppressed with increased Ru concentration and coexist with superconductivity. For samples that are superconducting, we find strong competition between superconductivity, the antiferromagnetic ordering, and the structural distortion. C1 [Kim, M. G.] US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Kim, MG (reprint author), US DOE, Ames Lab, Ames, IA 50011 USA. RI Kim, Min Gyu/B-8637-2012; Tian, Wei/C-8604-2013; Canfield, Paul/H-2698-2014; Thaler, Alexander/J-5741-2014; McQueeney, Robert/A-2864-2016 OI Kim, Min Gyu/0000-0001-7676-454X; Tian, Wei/0000-0001-7735-3187; Thaler, Alexander/0000-0001-5066-8904; McQueeney, Robert/0000-0003-0718-5602 FU Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy; Iowa State University [DE-AC02-07CH11358]; Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy ( US DOE); UT-Battelle, LLC [DE-AC05-00OR22725] FX We acknowledge valuable discussions with J. Schmalian and R. M. Fernandes. This work was supported by the Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy. Ames Laboratory is operated for the US Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. The work at the High Flux Isotope Reactor, Oak Ridge National Laboratory (ORNL), was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy (US DOE). ORNL is operated by UT-Battelle, LLC for the US DOE under Contract No. DE-AC05-00OR22725. NR 41 TC 49 Z9 49 U1 1 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 23 PY 2011 VL 83 IS 5 AR 054514 DI 10.1103/PhysRevB.83.054514 PG 6 WC Physics, Condensed Matter SC Physics GA 725OA UT WOS:000287653700008 ER PT J AU Aaltonen, T Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, JA Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, VE Barnett, BA Barria, P Bartos, P Bauce, M Bauer, G Bedeschi, F Beecher, D Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Bhatti, A Binkley, M Bisello, D Bizjak, I Bland, KR Blumenfeld, B Bocci, A Bodek, A Bortoletto, D Boudreau, J Boveia, A Brau, B Brigliadori, L Brisuda, A Bromberg, C Brucken, E Bucciantonio, M Budagov, J Budd, HS Budd, S Burkett, K Busetto, G Bussey, P Buzatu, A Calancha, C Camarda, S Campanelli, M Campbell, M Canelli, F Canepa, A Carls, B Carlsmith, D Carosi, R Carrillo, S Carron, S Casal, B Casarsa, M Castro, A Catastini, P Cauz, D Cavaliere, V Cavalli-Sforza, M Cerri, A Cerrito, L Chen, YC Chertok, M Chiarelli, G Chlachidze, G Chlebana, F Cho, K Chokheli, D Chou, JP Chung, WH Chung, YS Ciobanu, CI Ciocci, MA Clark, A Compostella, G Convery, ME Conway, J Corbo, M Cordelli, M Cox, CA Cox, DJ Crescioli, F Almenar, CC Cuevas, J Culbertson, R Dagenhart, D d'Ascenzo, N Datta, M de Barbaro, P De Cecco, S De Lorenzo, G Dell'Orso, M Deluca, C Demortier, L Deng, J Deninno, M Devoto, F d'Errico, M Di Canto, A Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dong, P Dorigo, M Dorigo, T Ebina, K Elagin, A Eppig, A Erbacher, R Errede, D Errede, S Ershaidat, N Eusebi, R Fang, HC Farrington, S Feindt, M Fernandez, JP Ferrazza, C Field, R Flanagan, G Forrest, R Frank, MJ Franklin, M Freeman, JC Funakoshi, Y Furic, I Gallinaro, M Galyardt, J Garcia, JE Garfinkel, AF Garosi, P Gerberich, H Gerchtein, E Giagu, S Giakoumopoulou, V Giannetti, P Gibson, K Ginsburg, CM Giokaris, N Giromini, P Giunta, M Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldin, D Goldschmidt, N Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Gonzalez, O Gorelov, I Goshaw, AT Goulianos, K Gresele, A Grinstein, S Grosso-Pilcher, C Group, RC da Costa, JG Gunay-Unalan, Z Haber, C Hahn, SR Halkiadakis, E Hamaguchi, A Han, JY Happacher, F Hara, K Hare, D Hare, M Harr, RF Hatakeyama, K Hays, C Heck, M Heinrich, J Herndon, M Hewamanage, S Hidas, D Hocker, A Hopkins, W Horn, D Hou, S Hughes, RE Hurwitz, M Husemann, U Hussain, N Hussein, M Huston, J Introzzi, G Iori, M Ivanov, A James, E Jang, D Jayatilaka, B Jeon, EJ Jha, MK Jindariani, S Johnson, W Jones, M Joo, KK Jun, SY Junk, TR Kamon, T Karchin, PE Kato, Y Ketchum, W Keung, J Khotilovich, V Kilminster, B Kim, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kimura, N Kirby, M Klimenko, S Kondo, K Kong, DJ Konigsberg, J Kotwal, AV Kreps, M Kroll, J Krop, D Krumnack, N Kruse, M Krutelyov, V Kuhr, T Kurata, M Kwang, S Laasanen, AT Lami, S Lammel, S Lancaster, M Lander, RL Lannon, K Lath, A Latino, G 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Scribano, A. Scuri, F. Sedov, A. Seidel, S. Seiya, Y. Semenov, A. Sforza, F. Sfyrla, A. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shiraishi, S. Shochet, M. Shreyber, I. Simonenko, A. Sinervo, P. Sissakian, A. Sliwa, K. Smith, J. R. Snider, F. D. Soha, A. Somalwar, S. Sorin, V. Squillacioti, P. Stancari, M. Stanitzki, M. Denis, R. St. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Strycker, G. L. Sudo, Y. Sukhanov, A. Suslov, I. Takemasa, K. Takeuchi, Y. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thome, J. Thompson, G. A. Thomson, E. Ttito-Guzman, P. Tkaczyk, S. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Tu, Y. Ukegawa, F. Uozumi, S. Varganov, A. Vazquez, F. Velev, G. Vellidis, C. Vidal, M. Vila, I. Vilar, R. Vogel, M. Volpi, G. Wagner, P. Wagner, R. L. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Weinberger, M. Wester, W. C., III Whitehouse, B. Whiteson, D. Wicklund, A. B. Wicklund, E. Wilbur, S. Wick, F. Williams, H. H. Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamaoka, J. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanetti, A. Zeng, Y. Zucchelli, S. CA CDF Collaboration TI Measurement of t(t)over-cap spin correlation in p(p)over-cap collisions using the CDF II detector at the Tevatron SO PHYSICAL REVIEW D LA English DT Article ID QUARK PAIR PRODUCTION; TOP-QUARK; HADRON COLLIDERS; DECAY; CALORIMETER; TEV AB The t (t) over bar spin correlation at production is a fundamental prediction of QCD and a potentially incisive test of new physics coupled to top quarks. We measure the t (t) over bar spin state in p (p) over bar collisions at root s = 1.96 TeV using 1001 candidate events in the lepton plus jets decay channel reconstructed in the CDF II detector. 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[Auerbach, B.; Almenar, C. Cuenca; Husemann, U.; Lockwitz, S.; Loginov, A.; Schmidt, M. P.; Stanitzki, M.] Yale Univ, New Haven, CT 06520 USA. RP Aaltonen, T (reprint author), Univ Helsinki, Div High Energy Phys, Dept Phys, FIN-00014 Helsinki, Finland. RI Scodellaro, Luca/K-9091-2014; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera, Ignazio/E-9678-2015; Garcia, Jose /H-6339-2015; Cavalli-Sforza, Matteo/H-7102-2015; ciocci, maria agnese /I-2153-2015; Chiarelli, Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015; Piacentino, Giovanni/K-3269-2015; Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Zeng, Yu/C-1438-2013; Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Lysak, Roman/H-2995-2014; Moon, Chang-Seong/J-3619-2014; Martinez Ballarin, Roberto/K-9209-2015; Gorelov, Igor/J-9010-2015; Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; OI Scodellaro, Luca/0000-0002-4974-8330; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese /0000-0003-0002-5462; Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi, Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924; Ruiz, Alberto/0000-0002-3639-0368; Punzi, Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; Moon, Chang-Seong/0000-0001-8229-7829; Martinez Ballarin, Roberto/0000-0003-0588-6720; Gorelov, Igor/0000-0001-5570-0133; Prokoshin, Fedor/0000-0001-6389-5399; Canelli, Florencia/0000-0001-6361-2117; Gallinaro, Michele/0000-0003-1261-2277 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A.P. Sloan Foundation; Bundesministerium fur Bildung und Forschung, Germany; World Class University, National Research Foundation of Korea; Science and Technology Facilities Council; Royal Society, UK; Institut National de Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion; Programa Consolider-Ingenio, Spain; Slovak R D Agency; Academy of Finland FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; the World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R & D Agency; and the Academy of Finland. NR 38 TC 13 Z9 13 U1 2 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 EI 1550-2368 J9 PHYS REV D JI Phys. Rev. D PD FEB 23 PY 2011 VL 83 IS 3 AR 031104 DI 10.1103/PhysRevD.83.031104 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 725OP UT WOS:000287655300001 ER PT J AU Ding, HT Francis, A Kaczmarek, O Karsch, F Laermann, E Soeldner, W AF Ding, H. -T. Francis, A. Kaczmarek, O. Karsch, F. Laermann, E. Soeldner, W. TI Thermal dilepton rate and electrical conductivity: An analysis of vector current correlation functions in quenched lattice QCD SO PHYSICAL REVIEW D LA English DT Article ID QUARK-GLUON PLASMA; NONPERTURBATIVE O(A) IMPROVEMENT; MESON CORRELATION-FUNCTIONS; TRANSPORT-COEFFICIENTS; SPECTRAL FUNCTIONS; HIGH-TEMPERATURE; PHOTON; RENORMALIZATION AB We calculate the vector current correlation function for light valence quarks in the deconfined phase of QCD. The calculations have been performed in quenched lattice QCD at T similar or equal to 1: 45T(c) for four values of the lattice cutoff on lattices up to size 128(3) x 48. This allows us to perform a continuum extrapolation of the correlation function in the Euclidean time interval 0.2 <= tau T <= 0.5, which extends to the largest temporal separations possible at finite temperature, to better than 1% accuracy. In this interval, at the value of the temperature investigated, we find that the vector correlation function never deviates from the free correlator for massless quarks by more than 9%. We also determine the first two nonvanishing thermal moments of the vector meson spectral function. The second thermal moment deviates by less than 7% from the free value. With these constraints, we then proceed to extract information on the spectral representation of the vector correlator and discuss resulting consequences for the electrical conductivity and the thermal dilepton rate in the plasma phase. C1 [Ding, H. -T.; Francis, A.; Kaczmarek, O.; Karsch, F.; Laermann, E.; Soeldner, W.] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany. [Ding, H. -T.; Karsch, F.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Ding, HT (reprint author), Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany. RI Kaczmarek, Olaf/E-9932-2011; OI Ding, Heng-Tong/0000-0003-0590-081X FU U.S. Department of Energy [DE-AC02-98CH10886]; BMBF [06BI401]; Gesellschaft fur Schwerionenforschung; Extreme Matter Institute [HA216/EMMI]; Deutsche Forschungsgemeinschaft [GRK 881]; State of New York; John von Neumann Supercomputing Center (NIC) at FZ-Julich, Germany FX This work has been supported in part by Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy, the BMBF under Grant No. 06BI401, the Gesellschaft fur Schwerionenforschung under grant BILAER, the Extreme Matter Institute under Grant No. HA216/EMMI and the Deutsche Forschungsgemeinschaft under Grant No. GRK 881. Numerical simulations have been performed on the BlueGene/P at the New York Center for Computational Sciences (NYCCS) which is supported by the U.S. Department of Energy and by the State of New York and the John von Neumann Supercomputing Center (NIC) at FZ-Julich, Germany. NR 49 TC 118 Z9 118 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 23 PY 2011 VL 83 IS 3 AR 034504 DI 10.1103/PhysRevD.83.034504 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 725OP UT WOS:000287655300008 ER PT J AU Khachatryan, V Sirunyan, AM Tumasyan, A Adam, W Bergauer, T Dragicevic, M Ero, J Fabjan, C Friedl, M Fruhwirth, R Ghete, VM Hammer, J Hansel, S Hartl, C Hoch, M Hormann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Rohringer, H Schofbeck, R Strauss, J Taurok, A Teischinger, F Waltenberger, W Walzel, G Widl, E Wulz, CE Mossolov, V Shumeiko, N Gonzalez, JS Benucci, L Ceard, L Cerny, K De Wolf, EA Janssen, X Maes, T Mucibello, L Ochesanu, S Roland, B Rougny, R Selvaggi, M Van Haevermaet, H Van Mechelen, P Van Remortel, N Adler, V Beauceron, S Blekman, F Blyweert, S D'Hondt, J Devroede, O Suarez, RG Kalogeropoulos, A Maes, J Maes, M Tavernier, S Van Doninck, W Van Mulders, P Van Onsem, GP Villella, I Charaf, O Clerbaux, B De 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Jiang, CH Liang, D Liang, S Wang, J Wang, J Wang, X Wang, Z Xu, M Yang, M Zang, J Zhang, Z Ban, Y Guo, S Li, W Mao, Y Qian, SJ Teng, H Zhu, B Cabrera, A Moreno, BG Rios, AAO Oliveros, AFO Sanabria, JC Godinovic, N Lelas, D Lelas, K Plestina, R Polic, D Puljak, I Antunovic, Z Dzelalija, M Brigljevic, V Duric, S Kadija, K Morovic, S Attikis, A Galanti, M Mousa, J Nicolaou, C Ptochos, F Razis, PA Rykaczewski, H Assran, Y Mahmoud, MA Hektor, A Kadastik, M Kannike, K Muentel, M Raidal, M Rebane, L Azzolini, V Eerola, P Czellar, S Harkonen, J Heikkinen, A Karimaki, V Kinnunen, R Klem, J Kortelainen, MJ Lampen, T Lassila-Perini, K Lehti, S Linden, T Luukka, P Maenpaa, T Tuominen, E Tuominiemi, J Tuovinen, E Ungaro, D Wendland, L Banzuzi, K Korpela, A Tuuva, T Sillou, D Besancon, M Dejardin, M Denegri, D Fabbro, B Faure, JL Ferri, F Ganjour, S Gentit, FX Givernaud, A Gras, P de Monchenault, GH Jarry, P Locci, E Malcles, J Marionneau, M Millischer, L Rander, J Rosowsky, A Shreyber, I Titov, M 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Reeder, D. Ross, I. Savin, A. Smith, W. H. Swanson, J. Weinberg, M. CA CMS Collaboration TI Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at root s=7 TeV SO PHYSICAL REVIEW LETTERS LA English DT Article ID P(P)OVER-BAR COLLISIONS AB The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy E-T(Gamma) in pp collisions at root s 7 TeV using data recorded by the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.9 pb(-1). Photons are required to have a pseudorapidity vertical bar eta(gamma)vertical bar < 1.45 and E-T(Gamma) > 21 GeV, covering the kinematic region 0.006 < x(T) < 0.086. The measured cross section is found to be in agreement with next-to-leading-order perturbative QCD calculations. C1 [Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia. 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H.; Liang, D.; Liang, S.; Wang, J.; Wang, X.; Wang, Z.; Xu, M.; Yang, M.; Zang, J.; Zhang, Z.] Inst High Energy Phys, Beijing 100039, Peoples R China. [Ban, Y.; Guo, S.; Li, W.; Mao, Y.; Qian, S. J.; Teng, H.; Zhu, B.] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China. [Cabrera, A.; Gomez Moreno, B.; Ocampo Rios, A. A.; Osorio Oliveros, A. F.; Sanabria, J. C.] Univ Los Andes, Bogota, Colombia. [Godinovic, N.; Lelas, D.; Lelas, K.; Plestina, R.; Polic, D.; Puljak, I.] Tech Univ Split, Split, Croatia. [Antunovic, Z.; Dzelalija, M.] Univ Split, Split, Croatia. [Brigljevic, V.; Duric, S.; Kadija, K.; Morovic, S.] Rudjer Boskovic Inst, Zagreb, Croatia. [Attikis, A.; Galanti, M.; Mousa, J.; Nicolaou, C.; Ptochos, F.; Razis, P. A.; Rykaczewski, H.] Univ Cyprus, Nicosia, Cyprus. [Assran, Y.; Mahmoud, M. A.] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt. [Hektor, A.; Kadastik, M.; Kannike, K.; Muentel, M.; Raidal, M.; Rebane, L.] NICPB, Tallinn, Estonia. [Azzolini, V.; Eerola, P.] Univ Helsinki, Dept Phys, Helsinki, Finland. [Czellar, S.; Haerkoenen, J.; Heikkinen, A.; Karimaki, V.; Kinnunen, R.; Klem, J.; Kortelainen, M. J.; Lampen, T.; Lassila-Perini, K.; Lehti, S.; Linden, T.; Luukka, P.; Maenpaa, T.; Tuominen, E.; Tuominiemi, J.; Tuovinen, E.; Ungaro, D.; Wendland, L.] Helsinki Inst Phys, Helsinki, Finland. [Banzuzi, K.; Korpela, A.; Tuuva, T.] Lappeenranta Univ Technol, Lappeenranta, Finland. [Sillou, D.] CNRS, IN2P3, Lab Annecy Le Vieux Phys Particules, Annecy Le Vieux, France. [Besancon, M.; Dejardin, M.; Denegri, D.; Fabbro, B.; Faure, J. L.; Ferri, F.; Ganjour, S.; Gentit, F. X.; Givernaud, A.; Gras, P.; de Monchenault, G. Hamel; Jarry, P.; Locci, E.; Malcles, J.; Marionneau, M.; Millischer, L.; Rander, J.; Rosowsky, A.; Shreyber, I.; Titov, M.; Verrecchia, P.] CEA Saclay, DSM IRFU, F-91191 Gif Sur Yvette, France. [Plestina, R.; Baffioni, S.; Beaudette, F.; Bianchini, L.; Bluj, M.; Broutin, C.; Busson, P.; Charlot, C.; Dahms, T.; Dobrzynski, L.; De Cassagnac, R. Granier; Haguenauer, M.; Mine, P.; Mironov, C.; Ochando, C.; Paganini, P.; Sabes, D.; Salerno, R.; Sirois, Y.; Thiebaux, C.; Wyslouch, B.; Zabi, A.; Bernet, C.; Cerci, S.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France. [Agram, J. -L.; Andrea, J.; Besson, A.; Bloch, D.; Bodin, D.; Brom, J. -M.; Cardaci, M.; Chabert, E. C.; Collard, C.; Conte, E.; Drouhin, F.; Ferro, C.; Fontaine, J. -C.; Gele, D.; Goerlach, U.; Greder, S.; Juillot, P.; Karim, M.; Le Bihan, A. -C.; Mikami, Y.; Van Hove, P.] Univ Haute Alsace Mulhouse, Univ Strasbourg, Inst Pluridisciplinaire Hubert Curien, CNRS,IN2P3, Strasbourg, France. [Fassi, F.; Mercier, D.] Inst Natl Phys Nucl & Phys Particules, Ctr Calcul, Villeurbanne, France. [Baty, C.; Beaupere, N.; Bedjidian, M.; Bondu, O.; Boudoul, G.; Boumediene, D.; Brun, H.; Chanon, N.; Chierici, R.; Contardo, D.; Depasse, P.; El Mamouni, H.; Falkiewicz, A.; Fay, J.; Gascon, S.; Ille, B.; Kurca, T.; Le Grand, T.; Lethuillier, M.; Mirabito, L.; Perries, S.; Sordini, V.; Tosi, S.; Tschudi, Y.; Verdier, P.; Xiao, H.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France. [Roinishvili, V.] Georgian Acad Sci, E Andronikashvili Inst Phys, GE-380060 Tbilisi, Rep of Georgia. [Anagnostou, G.; Edelhoff, M.; Feld, L.; Heracleous, N.; Hindrichs, O.; Jussen, R.; Klein, K.; Merz, J.; Mohr, N.; Ostapchuk, A.; Perieanu, A.; Raupach, F.; Sammet, J.; Schael, S.; Sprenger, D.; Weber, H.; Weber, M.; Wittmer, B.; Ata, M.] Rhein Westfal TH Aachen, Inst Phys 1, Aachen, Germany. [Bender, W.; Erdmann, M.; Frangenheim, J.; Hebbeker, T.; Hinzmann, A.; Hoepfner, K.; Hof, C.; Klimkovich, T.; Klingebiel, D.; Kreuzer, P.; Lanske, D.; Magass, C.; Masetti, G.; Merschmeyer, M.; Meyer, A.; Papacz, P.; Pieta, H.; Reithler, H.; Schmitz, S. A.; Sonnenschein, L.; Steggemann, J.; Teyssier, D.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bontenackels, M.; Davids, M.; Duda, M.; Fluegge, G.; Geenen, H.; Giffels, M.; Ahmad, W. Haj; Heydhausen, D.; Kress, T.; Kuessel, Y.; Linn, A.; Nowack, A.; Perchalla, L.; Pooth, O.; Rennefeld, J.; Sauerland, P.; Stahl, A.; Thomas, M.; Tornier, D.; Zoeller, M. H.] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany. [Martin, M. Aldaya; Behrenhoff, W.; Behrens, U.; Bergholz, M.; Borras, K.; Cakir, A.; Campbell, A.; Castro, E.; Dammann, D.; Eckerlin, G.; Eckstein, D.; Flossdorf, A.; Flucke, G.; Geiser, A.; Glushkov, I.; Hauk, J.; Jung, H.; Kasemann, M.; Katkov, I.; Katsas, P.; Kleinwort, C.; Kluge, H.; Knutsson, A.; Kruecker, D.; Kuznetsova, E.; Lange, W.; Lohmann, W.; Mankel, R.; Marienfeld, M.; Melzer-Pellmann, I. -A.; Meyer, A. B.; Mnich, J.; Mussgiller, A.; Olzem, J.; Parenti, A.; Raspereza, A.; Raval, A.; Schmidt, R.; Schoerner-Sadenius, T.; Sen, N.; Stein, M.; Tomaszewska, J.; Volyanskyy, D.; Walsh, R.; Wissing, C.] Deutsch Elekt Synchrotron, Hamburg, Germany. [Autermann, C.; Bobrovskyi, S.; Draeger, J.; Enderle, H.; Gebbert, U.; Kaschube, K.; Kaussen, G.; Klanner, R.; Lange, J.; Mura, B.; Naumann-Emme, S.; Nowak, F.; Pietsch, N.; Sander, C.; Schettler, H.; Schleper, P.; Schroeder, M.; Schum, T.; Schwandt, J.; Srivastava, A. K.; Stadie, H.; Steinbrueck, G.; Thomsen, J.; Wolf, R.] Univ Hamburg, Hamburg, Germany. [Bauer, J.; Buege, V.; Chwalek, T.; De Boer, W.; Dierlamm, A.; Dirkes, G.; Feindt, M.; Gruschke, J.; Hackstein, C.; Hartmann, F.; Heindl, S. M.; Heinrich, M.; Held, H.; Hoffmann, K. H.; Honc, S.; Kuhr, T.; Martschei, D.; Mueller, S.; Mueller, Th.; Niegel, M.; Oberst, O.; Oehler, A.; Ott, J.; Peiffer, T.; Piparo, D.; Quast, G.; Rabbertz, K.; Ratnikov, F.; Renz, M.; Saout, C.; Scheurer, A.; Schieferdecker, P.; Schilling, F. -P.; Schott, G.; Simonis, H. J.; Stober, F. M.; Troendle, D.; Wagner-Kuhr, J.; Zeise, M.; Zhukov, V.; Ziebarth, E. B.] Univ Karlsruhe, Inst Expt Kernphys, D-7500 Karlsruhe, Germany. [Daskalakis, G.; Geralis, T.; Kesisoglou, S.; Kyriakis, A.; Loukas, D.; Manolakos, I.; Markou, A.; Markou, C.; Mavrommatis, C.; Petrakou, E.] Inst Nucl Phys Demokritos, Aghia Paraskevi, Greece. [Gouskos, L.; Mertzimekis, T. J.; Panagiotou, A.; Sphicas, P.] Univ Athens, Athens, Greece. [Evangelou, I.; Foudas, C.; Kokkas, P.; Manthos, N.; Papadopoulos, I.; Patras, V.; Triantis, F. A.] Univ Ioannina, GR-45110 Ioannina, Greece. [Aranyi, A.; Bencze, G.; Boldizsar, L.; Debreczeni, G.; Hajdu, C.; Horvath, D.; Kapusi, A.; Krajczar, K.; Laszlo, A.; Sikler, F.; Vesztergombi, G.; Pasztor, G.] KFKI Res Inst Particle & Nucl Phys, Budapest, Hungary. [Horvath, D.; Beni, N.; Molnar, J.; Palinkas, J.; Szillasi, Z.; Veszpremi, V.] Inst Nucl Res ATOMKI, Debrecen, Hungary. [Raics, P.; Trocsanyi, Z. L.; Ujvari, B.] Univ Debrecen, Debrecen, Hungary. [Bansal, S.; Beri, S. B.; Bhatnagar, V.; Dhingra, N.; Jindal, M.; Kaur, M.; Kohli, J. M.; Mehta, M. Z.; Nishu, N.; Saini, L. K.; Sharma, A.; Singh, A. P.; Singh, J. B.; Singh, S. P.] Panjab Univ, Chandigarh 160014, India. [Ahuja, S.; Bhattacharya, S.; Choudhary, B. C.; Gupta, P.; Jain, S.; Kumar, A.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Choudhury, R. K.; Dutta, D.; Kailas, S.; Kataria, S. K.; Mohanty, A. K.; Pant, L. M.; Shukla, P.] Bhabha Atom Res Ctr, Mumbai 400085, Maharashtra, India. [Suggisetti, P.; Aziz, T.; Guchait, M.; Gurtu, A.; Maity, M.; Majumder, D.; Majumder, G.; Mazumdar, K.; Mohanty, G. B.; Saha, A.; Sudhakar, K.; Wickramage, N.] Tata Inst Fundamental Res EHEP, Mumbai, Maharashtra, India. [Aziz, T.; Banerjee, S.; Dugad, S.; Mondal, N. K.] Tata Inst Fundamental Res HECR, Mumbai, Maharashtra, India. [Arfaei, H.; Bakhshiansohi, H.; Etesami, S. M.; Fahim, A.; Hashemi, M.; Jafari, A.; Khakzad, M.; Mohammadi, A.; Najafabadi, M. Mohammadi; Mehdiabadi, S. Paktinat; Safarzadeh, B.; Zeinali, M.] Inst Studies Theoret Phys & Math IPM, Tehran, Iran. [Abbrescia, M.; Barbone, L.; Calabria, C.; Colaleo, A.; Creanza, D.; De Filippis, N.; De Palma, M.; Dimitrov, A.; Fiore, L.; Iaselli, G.; Lusito, L.; Maggi, G.; Maggi, M.; Manna, N.; Marangelli, B.; My, S.; Nuzzo, S.; Pacifico, N.; Pierro, G. A.; Pompili, A.; Pugliese, G.; Romano, F.; Roselli, G.; Selvaggi, G.; Silvestris, L.; Trentadue, R.; Tupputi, S.; Zito, G.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Abbrescia, M.; Barbone, L.; Calabria, C.; De Palma, M.; Lusito, L.; Manna, N.; Marangelli, B.; Nuzzo, S.; Pacifico, N.; Pompili, A.; Roselli, G.; Selvaggi, G.; Tupputi, S.] Univ Bari, Bari, Italy. [Creanza, D.; De Filippis, N.; Iaselli, G.; Maggi, G.; My, S.; Pugliese, G.; Romano, F.] Politecn Bari, Bari, Italy. [Abbiendi, G.; Benvenuti, A. C.; Bonacorsi, D.; Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cavallo, F. R.; Cuffiani, M.; Dallavalle, G. M.; Fabbri, F.; Fanfani, A.; Fasanella, D.; Giacomelli, P.; Giunta, M.; Grandi, C.; Marcellini, S.; Meneghelli, M.; Montanari, A.; Navarria, F. L.; Odorici, F.; Perrotta, A.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy. [Braibant-Giacomelli, S.; Capiluppi, P.; Castro, A.; Cuffiani, M.; Fanfani, A.; Montanari, A.; Odorici, F.; Rossi, A. M.; Rovelli, T.; Siroli, G.; Travaglini, R.] Univ Bologna, Bologna, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.; Tuve, C.] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy. [Albergo, S.; Cappello, G.; Chiorboli, M.; Costa, S.; Tricomi, A.] Univ Catania, Catania, Italy. [Barbagli, G.; Ciulli, V.; Civinini, C.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Gallo, E.; Genta, C.; Lenzi, P.; Meschini, M.; Paoletti, S.; Sguazzoni, G.; Tropiano, A.] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy. [Ciulli, V.; D'Alessandro, R.; Focardi, E.; Frosali, S.; Lenzi, P.] Univ Florence, Florence, Italy. [Benussi, L.; Bianco, S.; Colafranceschi, S.; Fabbri, F.; Piccolo, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Fabbricatore, P.; Musenich, R.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Malvezzi, S.; Martelli, A.; Massironi, A.; Menasce, D.; Moroni, L.; Paganoni, M.; Pedrini, D.; Ragazzi, S.; Redaelli, N.; Sala, S.; de Fatis, T. Tabarelli; Tancini, V.] Ist Nazl Fis Nucl, Sez Milano Biccoca, I-20133 Milan, Italy. [Benaglia, A.; De Guio, F.; Di Matteo, L.; Ghezzi, A.; Malberti, M.; Martelli, A.; Massironi, A.; Paganoni, M.; Ragazzi, S.; de Fatis, T. Tabarelli; Tancini, V.] Univ Milano Bicocca, Milan, Italy. [Buontempo, S.; Montoya, C. A. Carrillo; Cimmino, A.; De Cosa, A.; De Gruttola, M.; Fabozzi, F.; Iorio, A. O. M.; Lista, L.; Merola, M.; Noli, P.; Paolucci, P.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy. [Cimmino, A.; De Cosa, A.; De Gruttola, M.; Merola, M.; Noli, P.] Univ Naples Federico II, Naples, Italy. [Azzi, P.; Bacchetta, N.; Bellan, P.; Bisello, D.; Branca, A.; Carlin, R.; Checchia, P.; Conti, E.; De Mattia, M.; Dorigo, T.; Dosselli, U.; Fanzago, F.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Gresele, A.; Lacaprara, S.; Lazzizzera, I.; Margoni, M.; Mazzucato, M.; Meneguzzo, A. T.; Perrozzi, L.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Torassa, E.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy. [Bellan, P.; Bisello, D.; Carlin, R.; De Mattia, M.; Gasparini, F.; Gasparini, U.; Giubilato, P.; Margoni, M.; Meneguzzo, A. T.; Pozzobon, N.; Ronchese, P.; Simonetto, F.; Tosi, M.; Vanini, S.; Zotto, P.; Zumerle, G.] Univ Padua, Padua, Italy. [Gresele, A.; Lazzizzera, I.] Univ Trento Trento, Padua, Italy. [Berzano, U.; Riccardi, C.; Torre, P.; Vitulo, P.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy. [Riccardi, C.; Torre, P.; Vitulo, P.] Univ Pavia, I-27100 Pavia, Italy. [Biasini, M.; Bilei, G. M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Menichelli, M.; Nappi, A.; Santocchia, A.; Servoli, L.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy. [Biasini, M.; Caponeri, B.; Fano, L.; Lariccia, P.; Lucaroni, A.; Mantovani, G.; Nappi, A.; Santocchia, A.; Taroni, S.; Valdata, M.; Volpe, R.; Pioppi, M.] Univ Perugia, I-06100 Perugia, Italy. [Azzurri, P.; Bagliesi, G.; Bernardini, J.; Boccali, T.; Broccolo, G.; Castaldi, R.; D'Agnolo, R. T.; Dell'Orso, R.; Fiori, F.; Foa, L.; Giassi, A.; Kraan, A.; Ligabue, F.; Lomtadze, T.; Martini, L.; Messineo, A.; Palla, F.; Palmonari, F.; Sarkar, S.; Segneri, G.; Serban, A. T.; Spagnolo, P.; Tenchini, R.; Tonelli, G.; Venturi, A.; Verdini, P. G.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Messineo, A.; Tonelli, G.] Univ Pisa, Pisa, Italy. [Azzurri, P.; Broccolo, G.; D'Agnolo, R. T.; Fiori, F.; Foa, L.; Ligabue, F.; Sarkar, S.] Scuola Normale Super Pisa, Pisa, Italy. [Barone, L.; Cavallari, F.; Del Re, D.; Di Marco, E.; Diemoz, M.; Franci, D.; Grassi, M.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Paramatti, R.; Rahatlou, S.; Rovelli, C.] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy. [Colafranceschi, S.; Barone, L.; Del Re, D.; Di Marco, E.; Franci, D.; Longo, E.; Organtini, G.; Palma, A.; Pandolfi, F.; Rahatlou, S.] Univ Roma La Sapienza, Rome, Italy. [Amapane, N.; Arcidiacono, R.; Argiro, S.; Arneodo, M.; Biino, C.; Botta, C.; Cartiglia, N.; Castello, R.; Costa, M.; Demaria, N.; Graziano, A.; Mariotti, C.; Marone, M.; Maselli, S.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Obertino, M. M.; Pastrone, N.; Pelliccioni, M.; Romero, A.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.; Staiano, A.; Trocino, D.; Pereira, A. Vilela] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Amapane, N.; Argiro, S.; Botta, C.; Castello, R.; Costa, M.; Graziano, A.; Marone, M.; Migliore, E.; Mila, G.; Monaco, V.; Musich, M.; Pelliccioni, M.; Romero, A.; Sacchi, R.; Sola, V.; Solano, A.; Trocino, D.; Pereira, A. Vilela] Univ Turin, Turin, Italy. [Arcidiacono, R.; Arneodo, M.; Obertino, M. M.; Ruspa, M.] Univ Piemonte Orientale Novara, Turin, Italy. [Ambroglini, F.; Belforte, S.; Cossutti, F.; Della Ricca, G.; Gobbo, B.; Montanino, D.; Penzo, A.] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy. [Ambroglini, F.; Della Ricca, G.; Montanino, D.] Univ Trieste, Trieste, Italy. [Heo, S. G.] Kangwon Natl Univ, Chunchon, South Korea. [Chang, S.; Chung, J.; Kim, D. H.; Kim, G. N.; Kim, J. E.; Kong, D. J.; Park, H.; Son, D.; Son, D. C.] Kyungpook Natl Univ, Taegu, South Korea. [Kim, Zero; Kim, J. Y.; Song, S.; Choi, S.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Hong, B.; Jo, M.; Kim, H.; Kim, J. H.; Kim, T. J.; Lee, K. S.; Moon, D. H.; Park, S. K.; Rhee, H. B.; Seo, E.; Shin, S.; Sim, K. S.] Korea Univ, Seoul, South Korea. [Choi, M.; Kang, S.; Kim, H.; Park, C.; Park, I. C.; Park, S.; Ryu, G.] Univ Seoul, Seoul, South Korea. [Choi, Y.; Choi, Y. K.; Goh, J.; Lee, J.; Lee, S.; Seo, H.; Yu, I.] Sungkyunkwan Univ, Suwon, South Korea. [Bilinskas, M. J.; Grigelionis, I.; Janulis, M.; Martisiute, D.; Petrov, P.; Sabonis, T.] Vilnius State Univ, Vilnius, Lithuania. [Castilla Valdez, H.; De la Cruz Burelo, E.; Lopez-Fernandez, R.; Sanchez Hernandez, A.; Villasenor-Cendejas, L. M.] IPN, Ctr Invest & Estudios Avanzados, Mexico City 07738, DF, Mexico. [Carrillo Moreno, S.; Vazquez Valencia, F.] Univ Iberoamer, Mexico City, DF, Mexico. [Salazar Ibarguen, H. A.] Benemerita Univ Autonoma Puebla, Puebla, Mexico. [Casimiro Linares, E.; Morelos Pineda, A.; Reyes-Santos, M. A.] Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico. [Allfrey, P.; Krofcheck, D.] Univ Auckland, Auckland 1, New Zealand. [Butler, P. H.; Doesburg, R.; Silverwood, H.] Univ Canterbury, Christchurch 1, New Zealand. [Ahmad, M.; Ahmed, I.; Asghar, M. I.; Hoorani, H. R.; Khan, W. A.; Khurshid, T.; Qazi, S.] Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan. [Cwiok, M.; Dominik, W.; Doroba, K.; Kalinowski, A.; Konecki, M.; Krolikowski, J.; Frueboes, T.] Univ Warsaw, Inst Expt Phys, Fac Phys, Warsaw, Poland. [Bianchini, L.; Gokieli, R.; Gorski, M.; Kazana, M.; Nawrocki, K.; Romanowska-Rybinska, K.; Szleper, M.; Wrochna, G.; Zalewski, P.; Topakli, H.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland. [Almeida, N.; David, A.; Faccioli, P.; Parracho, P. G. Ferreira; Gallinaro, M.; Martins, P.; Musella, P.; Nayak, A.; Ribeiro, P. Q.; Seixas, J.; Silva, P.; Varela, J.; Woehri, H. K.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Belotelov, I.; Bunin, P.; Finger, M.; Finger, M., Jr.; Golutvin, I.; Kamenev, A.; Karjavin, V.; Kozlov, G.; Lanev, A.; Moisenz, P.; Palichik, V.; Perelygin, V.; Shmatov, S.; Smirnov, V.; Volodko, A.; Zarubin, A.] Joint Inst Nucl Res, Dubna, Russia. [Bondar, N.; Golovtsov, V.; Ivanov, Y.; Kim, V.; Levchenko, P.; Murzin, V.; Oreshkin, V.; Smirnov, I.; Sulimov, V.; Uvarov, L.; Vavilov, S.; Vorobyev, A.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Andreev, Yu.; Gninenko, S.; Golubev, N.; Kirsanov, M.; Krasnikov, N.; Matveev, V.; Pashenkov, A.; Toropin, A.; Troitsky, S.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia. [Epshteyn, V.; Gavrilov, V.; Kaftanov, V.; Kossov, M.; Krokhotin, A.; Lychkovskaya, N.; Safronov, G.; Semenov, S.; Stolin, V.; Vlasov, E.; Zhokin, A.; Nikitenko, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Zhukov, V.; Boos, E.; Dubinin, M.; Dudko, L.; Ershov, A.; Gribushin, A.; Kodolova, O.; Lokhtin, I.; Obraztsov, S.; Petrushanko, S.; Sarycheva, L.; Savrin, V.; Snigirev, A.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Andreev, V.; Azarkin, M.; Dremin, I.; Kirakosyan, M.; Rusakov, S. V.; Vinogradov, A.] PN Lebedev Phys Inst, Moscow, Russia. [Azhgirey, I.; Bitioukov, S.; Grishin, V.; Kachanov, V.; Konstantinov, D.; Korablev, A.; Krychkine, V.; Petrov, V.; Ryutin, R.; Slabospitsky, S.; Sobol, A.; Tourtchanovitch, L.; Troshin, S.; Tyurin, N.; Uzunian, A.; Volkov, A.] Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Univ Belgrade, Fac Phys, Belgrade 11001, Serbia. [Adzic, P.; Djordjevic, M.; Krpic, D.; Milosevic, J.; Milenovic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia. [Aguilar-Benitez, M.; Maestre, J. Alcaraz; Arce, P.; Battilana, C.; Calvo, E.; Cepeda, M.; Cerrada, M.; Colino, N.; De la Cruz, B.; Pardos, C. Diez; Bedoya, C. Fernandez; Fernandez Ramos, J. P.; Ferrando, A.; Flix, J.; Fouz, M. C.; Garcia-Abia, P.; Gonzalez Lopez, O.; Goy Lopez, S.; Hernandez, J. M.; Josa, M. I.; Merino, G.; Pelayo, J. Puerta; Redondo, I.; Romero, L.; Santaolalla, J.; Willmott, C.] CIEMAT, E-28040 Madrid, Spain. [Albajar, C.; Codispoti, G.; de Troconiz, J. F.] Univ Autonoma Madrid, Madrid, Spain. [Cuevas, J.; Fernandez Menendez, J.; Folgueras, S.; Gonzalez Caballero, I.; Lloret Iglesias, L.; Vizan Garcia, J. M.] Univ Oviedo, Oviedo, Spain. [Cifuentes, J. A. Brochero; Cabrillo, I. J.; Calderon, A.; Llatas, M. Chamizo; Chuang, S. H.; Campderros, J. Duarte; Felcini, M.; Fernandez, M.; Gomez, G.; Gonzalez Sanchez, J.; Jorda, C.; Pardo, P. Lobelle; Virto, A. Lopez; Marco, J.; Marco, R.; Martinez Rivero, C.; Matorras, F.; Munoz Sanchez, F. J.; Piedra Gomez, J.; Rodrigo, T.; Jimeno, A. Ruiz; Scodellaro, L.; Sanudo, M. Sobron; Vila, I.; Cortabitarte, R. Vilar] Univ Cantabria, CSIC, IFCA, E-39005 Santander, Spain. [Magass, C.; Kaftanov, V.; Abbaneo, D.; Auffray, E.; Auzinger, G.; Baillon, P.; Ball, A. H.; Barney, D.; Bell, A. J.; Benedetti, D.; Bernet, C.; Bialas, W.; Bloch, P.; Bocci, A.; Bolognesi, S.; Breuker, H.; Brona, G.; Bunkowski, K.; Camporesi, T.; Cano, E.; Cerminara, G.; Christiansen, T.; Coarasa Perez, J. A.; Cure, B.; D'Enterria, D.; De Roeck, A.; Ramos, F. Duarte; Elliott-Peisert, A.; Frisch, B.; Funk, W.; Gaddi, A.; Gennai, S.; Georgiou, G.; Gerwig, H.; Gigi, D.; Gill, K.; Giordano, D.; Glege, F.; Gomez-Reino Garrido, R.; Gouzevitch, M.; Govoni, P.; Gowdy, S.; Guiducci, L.; Hansen, M.; Harvey, J.; Hegeman, J.; Hegner, B.; Henderson, C.; Hesketh, G.; Hoffmann, H. F.; Honma, A.; Innocente, V.; Janot, P.; Karavakis, E.; Lecoq, P.; Leonidopoulos, C.; Lourenco, C.; Macpherson, A.; Maki, T.; Malgeri, L.; Mannelli, M.; Masetti, L.; Meijers, F.; Mersi, S.; Meschi, E.; Moser, R.; Mozer, M. U.; Mulders, M.; Nesvold, E.; Nguyen, M.; Orimoto, T.; Orsini, L.; Perez, E.; Petrilli, A.; Pfeiffer, A.; Pierini, M.; Pimia, M.; Polese, G.; Racz, A.; Rolandi, G.; Rommerskirchen, T.; Rovelli, C.; Rovere, M.; Sakulin, H.; Schafer, C.; Schwick, C.; Segoni, I.; Sharma, A.; Siegrist, P.; Simon, M.; Sphicas, P.; Spiga, D.; Spiropulu, M.; Stockli, F.; Stoye, M.; Tropea, P.; Tsirou, A.; Tsyganov, A.; Veres, G. I.; Vichoudis, P.; Voutilainen, M.; Zeuner, W. D.; Tauscher, L.; Schlein, P.; Shen, B. C.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. [Bertl, W.; Deiters, K.; Erdmann, W.; Gabathuler, K.; Horisberger, R.; Ingram, Q.; Kaestli, H. C.; Konig, S.; Kotlinski, D.; Langenegger, U.; Meier, F.; Renker, D.; Rohe, T.; Sibille, J.; Starodumov, A.; Caminada, L.; Marchica, C.] Paul Scherrer Inst, Villigen, Switzerland. [Bortignon, P.; Caminada, L.; Chen, Z.; Cittolin, S.; Dissertori, G.; Dittmar, M.; Eugster, J.; Freudenreich, K.; Grab, C.; Herve, A.; Hintz, W.; Lecomte, P.; Lustermann, W.; Marchica, C.; Ruiz del Arbol, P. Martinez; Meridiani, P.; Milenovic, P.; Moortgat, F.; Nef, P.; Nessi-Tedaldi, F.; Pape, L.; Pauss, F.; Punz, T.; Rizzi, A.; Ronga, F. J.; Rossini, M.; Sala, L.; Sanchez, A. K.; Sawley, M. -C.; Stieger, B.; Tauscher, L.; Thea, A.; Theofilatos, K.; Treille, D.; Urscheler, C.; Wallny, R.; Weber, M.; Wehrli, L.; Weng, J.; Anastassov, A.] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland. [Aguilo, E.; Amsler, C.; Chiochia, V.; De Visscher, S.; Favaro, C.; Rikova, M. Ivova; Mejias, B. Millan; Regenfus, C.; Robmann, P.; Schmidt, A.; Snoek, H.; Wilke, L.] Univ Zurich, Zurich, Switzerland. [Chang, Y. H.; Chen, K. H.; Chen, W. T.; Dutta, S.; Go, A.; Kuo, C. M.; Li, S. W.; Lin, W.; Liu, M. H.; Liu, Z. K.; Lu, Y. J.; Wu, J. H.; Yu, S. S.] Natl Cent Univ, Chungli 32054, Taiwan. [Bartalini, P.; Chang, P.; Chang, Y. H.; Chang, Y. W.; Chao, Y.; Chen, K. F.; Hou, W. -S.; Hsiung, Y.; Kao, K. Y.; Lei, Y. J.; Lu, R. -S.; Shiu, J. G.; Tzeng, Y. M.; Wang, M.] Natl Taiwan Univ, Taipei 10764, Taiwan. [Adiguzel, A.; Bakirci, M. N.; Cerci, S.; Demir, Z.; Dozen, C.; Dumanoglu, I.; Eskut, E.; Girgis, S.; Gokbulut, G.; Guler, Y.; Gurpinar, E.; Hos, I.; Kangal, E. E.; Karaman, T.; Topaksu, A. Kayis; Nart, A.; Onengut, G.; Ozdemir, K.; Ozturk, S.; Polatoz, A.; Sogut, K.; Tali, B.; Topakli, H.; Uzun, D.; Vergili, L. N.; Vergili, M.; Zorbilmez, C.] Cukurova Univ, Adana, Turkey. [Akin, I. V.; Aliev, T.; Bilmis, S.; Deniz, M.; Gamsizkan, H.; Guler, A. M.; Ocalan, K.; Ozpineci, A.; Serin, M.; Sever, R.; Surat, U. E.; Yildirim, E.; Zeyrek, M.] Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey. [Deliomeroglu, M.; Demir, D.; Guelmez, E.; Halu, A.; Isildak, B.; Kaya, M.; Kaya, O.; Ozkorucuklu, S.; Sonmez, N.] Bogazici Univ, Istanbul, Turkey. [Levchuk, L.] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine. [Bell, P.; Bostock, F.; Brooke, J. J.; Cheng, T. L.; Clement, E.; Cussans, D.; Frazier, R.; Goldstein, J.; Grimes, M.; Hansen, M.; Hartley, D.; Heath, G. P.; Heath, H. F.; Huckvale, B.; Jackson, J.; Kreczko, L.; Metson, S.; Newbold, D. M.; Nirunpong, K.; Poll, A.; Senkin, S.; Smith, V. J.; Ward, S.] Univ Bristol, Bristol, Avon, England. [Newbold, D. M.; Basso, L.; Bell, K. W.; Belyaev, A.; Brew, C.; Brown, R. M.; Camanzi, B.; Cockerill, D. J. A.; Coughlan, J. A.; Harder, K.; Harper, S.; Kennedy, B. W.; Olaiya, E.; Petyt, D.; Radburn-Smith, B. C.; Shepherd-Themistocleous, C. H.; Tomalin, I. R.; Womersley, W. J.; Worm, S. D.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bainbridge, R.; Ball, G.; Ballin, J.; Beuselinck, R.; Buchmuller, O.; Colling, D.; Cripps, N.; Cutajar, M.; Davies, G.; Della Negra, M.; Fulcher, J.; Futyan, D.; Bryer, A. Guneratne; Hall, G.; Hatherell, Z.; Hays, J.; Iles, G.; Karapostoli, G.; Lyons, L.; Magnan, A. -M.; Marrouche, J.; Nandi, R.; Nash, J.; Nikitenko, A.; Papageorgiou, A.; Pesaresi, M.; Petridis, K.; Pioppi, M.; Raymond, D. M.; Rompotis, N.; Rose, A.; Ryan, M. J.; Seez, C.; Sharp, P.; Sparrow, A.; Tapper, A.; Tourneur, S.; Vazquez Acosta, M.; Virdee, T.; Wakefield, S.; Wardrope, D.; Whyntie, T.] Univ London Imperial Coll Sci Technol & Med, London, England. [Barrett, M.; Chadwick, M.; Cole, J. E.; Hobson, P. R.; Khan, A.; Kyberd, P.; Leslie, D.; Martin, W.; Reid, I. D.; Teodorescu, L.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Hatakeyama, K.] Baylor Univ, Waco, TX 76706 USA. [Bose, T.; Jarrin, E. Carrera; Clough, A.; Fantasia, C.; Heister, A.; John, J. St.; Lawson, P.; Lazic, D.; Rohlf, J.; Sperka, D.; Sulak, L.] Boston Univ, Boston, MA 02215 USA. [Avetisyan, A.; Bhattacharya, S.; Chou, J. P.; Cutts, D.; Ferapontov, A.; Heintz, U.; Jabeen, S.; Kukartsev, G.; Landsberg, G.; Narain, M.; Nguyen, D.; Segala, M.; Speer, T.; Tsang, K. V.] Brown Univ, Providence, RI 02912 USA. [Borgia, M. A.; Breedon, R.; De la Barca Sanchez, M. Calderon; Cebra, D.; Chauhan, S.; Chertok, M.; Conway, J.; Cox, P. T.; Dolen, J.; Erbacher, R.; Friis, E.; Ko, W.; Kopecky, A.; Lander, R.; Liu, H.; Maruyama, S.; Miceli, T.; Nikolic, M.; Pellett, D.; Robles, J.; Schwarz, T.; Searle, M.; Smith, J.; Squires, M.; Tripathi, M.; Sierra, R. Vasquez; Veelken, C.] Univ Calif Davis, Davis, CA 95616 USA. [Felcini, M.; Wallny, R.; Andreev, V.; Arisaka, K.; Cline, D.; Cousins, R.; Deisher, A.; Duris, J.; Erhan, S.; Farrell, C.; Hauser, J.; Ignatenko, M.; Jarvis, C.; Plager, C.; Rakness, G.; Schlein, P.; Tucker, J.; Valuev, V.; Nguyen, H.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Babb, J.; Clare, R.; Ellison, J.; Gary, J. W.; Giordano, F.; Hanson, G.; Jeng, G. Y.; Kao, S. C.; Liu, F.; Liu, H.; Luthra, A.; Pasztor, G.; Satpathy, A.; Shen, B. C.; Stringer, R.; Sturdy, J.; Sumowidagdo, S.; Wilken, R.; Wimpenny, S.] Univ Calif Riverside, Riverside, CA 92521 USA. [Andrews, W.; Branson, J. G.; Cerati, G. B.; Dusinberre, E.; Evans, D.; Golf, F.; Holzner, A.; Kelley, R.; Lebourgeois, M.; Letts, J.; Mangano, B.; Muelmenstaedt, J.; Padhi, S.; Palmer, C.; Petrucciani, G.; Pi, H.; Pieri, M.; Ranieri, R.; Sani, M.; Sharma, V.; Simon, S.; Tu, Y.; Vartak, A.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Barge, D.; Bellan, R.; Campagnari, C.; D'Alfonso, M.; Danielson, T.; Flowers, K.; Geffert, P.; Incandela, J.; Justus, C.; Kalavase, P.; Koay, S. A.; Kovalskyi, D.; Krutelyov, V.; Lowette, S.; Mccoll, N.; Pavlunin, V.; Rebassoo, F.; Ribnik, J.; Richman, J.; Rossin, R.; Stuart, D.; To, W.; Vlimant, J. R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Dubinin, M.; Spiropulu, M.; Bornheim, A.; Bunn, J.; Chen, Y.; Gataullin, M.; Kcira, D.; Litvine, V.; Ma, Y.; Mott, A.; Newman, H. B.; Rogan, C.; Timciuc, V.; Traczyk, P.; Veverka, J.; Wilkinson, R.; Yang, Y.; Zhu, R. Y.] CALTECH, Pasadena, CA 91125 USA. [Akgun, B.; Carroll, R.; Ferguson, T.; Iiyama, Y.; Jang, D. W.; Jun, S. Y.; Liu, Y. F.; Paulini, M.; Russ, J.; Terentyev, N.; Vogel, H.; Vorobiev, I.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Cumalat, J. P.; Dinardo, M. E.; Drell, B. R.; Edelmaier, C. J.; Ford, W. T.; Heyburn, B.; Luiggi Lopez, E.; Nauenberg, U.; Smith, J. G.; Stenson, K.; Ulmer, K. A.; Wagner, S. R.; Zang, S. L.] Univ Colorado, Boulder, CO 80309 USA. [Agostino, L.; Alexander, J.; Chatterjee, A.; Das, S.; Eggert, N.; Fields, L. J.; Gibbons, L. K.; Heltsley, B.; Hopkins, W.; Khukhunaishvili, A.; Kreis, B.; Kuznetsov, V.; Kaufman, G. Nicolas; Patterson, J. R.; Puigh, D.; Riley, D.; Ryd, A.; Shi, X.; Sun, W.; Teo, W. D.; Thom, J.; Thompson, J.; Vaughan, J.; Weng, Y.; Winstrom, L.; Wittich, P.] Cornell Univ, Ithaca, NY 14853 USA. [Biselli, A.; Cirino, G.; Winn, D.] Fairfield Univ, Fairfield, CT 06824 USA. [Abdullin, S.; Albrow, M.; Anderson, J.; Apollinari, G.; Atac, M.; Bakken, J. A.; Banerjee, S.; Beretvas, A.; Berryhill, J.; Bhat, P. C.; Bloch, I.; Borcherding, F.; Burkett, K.; Butler, J. N.; Chetluru, V.; Cheung, H. W. K.; Chlebana, F.; Cihangir, S.; Demarteau, M.; Eartly, D. P.; Elvira, V. D.; Esen, S.; Fisk, I.; Freeman, J.; Gao, Y.; Gottschalk, E.; Green, D.; Gunthoti, K.; Gutsche, O.; Hahn, A.; Hanlon, J.; Harris, R. M.; Hirschauer, J.; Hooberman, B.; James, E.; Jensen, H.; Johnson, M.; Joshi, U.; Khatiwada, R.; Kilminster, B.; Klima, B.; Kousouris, K.; Kunori, S.; Kwan, S.; Limon, P.; Lipton, R.; Lykken, J.; Maeshima, K.; Marraffino, J. M.; Mason, D.; McBride, P.; McCauley, T.; Miao, T.; Mishra, K.; Mrenna, S.; Musienko, Y.; Newman-Holmes, C.; O'Dell, V.; Popescu, S.; Pordes, R.; Prokofyev, O.; Saoulidou, N.; Sexton-Kennedy, E.; Sharma, S.; Soha, A.; Spalding, W. J.; Spiegel, L.; Tan, P.; Taylor, L.; Tkaczyk, S.; Uplegger, L.; Vaandering, E. W.; Vidal, R.; Whitmore, J.; Wu, W.; Yang, F.; Yumiceva, F.; Yun, J. C.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Piedra Gomez, J.; Acosta, D.; Avery, P.; Bourilkov, D.; Chen, M.; Di Giovanni, G. P.; Dobur, D.; Drozdetskiy, A.; Field, R. D.; Fisher, M.; Fu, Y.; Furic, I. K.; Gartner, J.; Goldberg, S.; Kim, B.; Klimenko, S.; Konigsberg, J.; Korytov, A.; Kropivnitskaya, A.; Kypreos, T.; Matchev, K.; Mitselmakher, G.; Muniz, L.; Pakhotin, Y.; Prescott, C.; Remington, R.; Schmitt, M.; Scurlock, B.; Sellers, P.; Skhirtladze, N.; Wang, D.; Yelton, J.; Zakaria, M.] Univ Florida, Gainesville, FL 32611 USA. [Ceron, C.; Gaultney, V.; Kramer, L.; Lebolo, L. M.; Linn, S.; Markowitz, P.; Martinez, G.; Rodriguez, J. L.] Florida Int Univ, Miami, FL 33199 USA. [Adams, T.; Askew, A.; Bandurin, D.; Bochenek, J.; Chen, J.; Diamond, B.; Gleyzer, S. V.; Haas, J.; Hagopian, S.; Hagopian, V.; Jenkins, M.; Johnson, K. F.; Prosper, H.; Sekmen, S.; Veeraraghavan, V.] Florida State Univ, Tallahassee, FL 32306 USA. [Baarmand, M. M.; Dorney, B.; Guragain, S.; Hohlmann, M.; Kalakhety, H.; Ralich, R.; Vodopiyanov, I.] Florida Inst Technol, Melbourne, FL 32901 USA. [Adams, M. R.; Anghel, I. M.; Apanasevich, L.; Bai, Y.; Bazterra, V. E.; Betts, R. R.; Callner, J.; Cavanaugh, R.; Dragoiu, C.; Garcia-Solis, E. J.; Gerber, C. E.; Hofman, D. J.; Khalatyan, S.; Lacroix, F.; O'Brien, C.; Silvestre, C.; Smoron, A.; Strom, D.; Varelas, N.] UIC, Chicago, IL 60607 USA. [Akgun, U.; Albayrak, E. A.; Bilki, B.; Cankocak, K.; Clarida, W.; Duru, F.; Lae, C. K.; McCliment, E.; Merlo, J. -P.; Mermerkaya, H.; Mestvirishvili, A.; Moeller, A.; Nachtman, J.; Newsom, C. R.; Norbeck, E.; Olson, J.; Onel, Y.; Ozok, F.; Sen, S.; Wetzel, J.; Yetkin, T.; Yi, K.] Univ Iowa, Iowa City, IA 52242 USA. [Barnett, B. A.; Blumenfeld, B.; Bonato, A.; Eskew, C.; Fehling, D.; Giurgiu, G.; Gritsan, A. V.; Guo, Z. J.; Hu, G.; Maksimovic, P.; Rappoccio, S.; Swartz, M.; Tran, N. V.; Whitbeck, A.] Johns Hopkins Univ, Baltimore, MD 21218 USA. [Sibille, J.; Baringer, P.; Bean, A.; Benelli, G.; Grachov, O.; Murray, M.; Noonan, D.; Radicci, V.; Sanders, S.; Wood, J. S.; Zhukova, V.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T.; Chakaberia, I.; Ivanov, A.; Makouski, M.; Maravin, Y.; Shrestha, S.; Svintradze, I.; Wan, Z.] Kansas State Univ, Manhattan, KS 66506 USA. [Gronberg, J.; Lange, D.; Wright, D.] Lawrence Livermore Natl Lab, Livermore, CA 94720 USA. [Baden, A.; Boutemeur, M.; Eno, S. C.; Ferencek, D.; Gomez, J. A.; Hadley, N. J.; Kellogg, R. G.; Kirn, M.; Lu, Y.; Mignerey, A. C.; Rossato, K.; Rumerio, P.; Santanastasio, F.; Skuja, A.; Temple, J.; Tonjes, M. B.; Tonwar, S. C.; Twedt, E.] Univ Maryland, College Pk, MD 20742 USA. [Alver, B.; Bauer, G.; Bendavid, J.; Busza, W.; Butz, E.; Cali, I. A.; Chan, M.; Dutta, V.; Everaerts, P.; Gomez Ceballos, G.; Goncharov, M.; Hahn, K. A.; Harris, P.; Kim, Y.; Klute, M.; Lee, Y. -J.; Li, W.; Loizides, C.; Luckey, P. D.; Ma, T.; Nahn, S.; Paus, C.; Ralph, D.; Roland, C.; Roland, G.; Rudolph, M.; Stephans, G. S. F.; Sumorok, K.; Sung, K.; Wenger, E. A.; Xie, S.; Yang, M.; Yilmaz, Y.; Yoon, A. S.; Zanetti, M.] MIT, Cambridge, MA 02139 USA. [Cole, P.; Cooper, S. I.; Cushman, P.; Dahmes, B.; De Benedetti, A.; Dudero, P. R.; Franzoni, G.; Haupt, J.; Klapoetke, K.; Kubota, Y.; Mans, J.; Rekovic, V.; Rusack, R.; Sasseville, M.; Singovsky, A.] Univ Minnesota, Minneapolis, MN 55455 USA. [Cremaldi, L. M.; Godang, R.; Kroeger, R.; Perera, L.; Rahmat, R.; Sanders, D. A.; Summers, D.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Bose, S.; Butt, J.; Claes, D. R.; Dominguez, A.; Eads, M.; Keller, J.; Kelly, T.; Kravchenko, I.; Lazo-Flores, J.; Lundstedt, C.; Malbouisson, H.; Malik, S.; Snow, G. R.; Iashvili, I.] Univ Nebraska, Lincoln, NE 68588 USA. [Baur, U.; Godshalk, A.; Kharchilava, A.; Kumar, A.; Shipkowski, S. P.; Smith, K.] SUNY Buffalo, Buffalo, NY 14260 USA. [Alverson, G.; Barberis, E.; Baumgartel, D.; Boeriu, O.; Chasco, M.; Kaadze, K.; Reucroft, S.; Swain, J.; Wood, D.; Zhang, J.] Northeastern Univ, Boston, MA 02115 USA. [Anastassov, A.; Kubik, A.; Odell, N.; Ofierzynski, R. A.; Pollack, B.; Pozdnyakov, A.; Schmitt, M.; Stoynev, S.; Velasco, M.; Won, S.] Northwestern Univ, Evanston, IL 60208 USA. [Antonelli, L.; Berry, D.; Hildreth, M.; Jessop, C.; Karmgard, D. J.; Kolb, J.; Kolberg, T.; Lannon, K.; Luo, W.; Lynch, S.; Marinelli, N.; Morse, D. M.; Pearson, T.; Ruchti, R.; Slaunwhite, J.; Valls, N.; Warchol, J.; Wayne, M.; Ziegler, J.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Bylsma, B.; Durkin, L. S.; Gu, J.; Hill, C.; Killewald, P.; Kotov, K.; Ling, T. Y.; Rodenburg, M.; Williams, G.] Ohio State Univ, Columbus, OH 43210 USA. [Adam, N.; Berry, E.; Elmer, P.; Gerbaudo, D.; Halyo, V.; Hebda, P.; Hunt, A.; Jones, J.; Laird, E.; Pegna, D. Lopes; Marlow, D.; Medvedeva, T.; Mooney, M.; Olsen, J.; Piroue, P.; Quan, X.; Saka, H.; Stickland, D.; Tully, C.; Werner, J. S.; Zuranski, A.] Princeton Univ, Princeton, NJ 08544 USA. [Acosta, J. G.; Huang, X. T.; Lopez, A.; Mendez, H.; Oliveros, S.; Ramirez Vargas, J. 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RP Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. 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Hernandez Calama, Jose Maria/H-9127-2015; Bedoya, Cristina/K-8066-2014; Matorras, Francisco/I-4983-2015; My, Salvatore/I-5160-2015; Muelmenstaedt, Johannes/K-2432-2015; Rovelli, Tiziano/K-4432-2015; Dremin, Igor/K-8053-2015; Hoorani, Hafeez/D-1791-2013; Andreev, Vladimir/M-8665-2015; Cakir, Altan/P-1024-2015; TUVE', Cristina/P-3933-2015; KIM, Tae Jeong/P-7848-2015; Arce, Pedro/L-1268-2014; Flix, Josep/G-5414-2012; Ozdemir, Kadri/P-8058-2014; Azarkin, Maxim/N-2578-2015; Paganoni, Marco/A-4235-2016; Kirakosyan, Martin/N-2701-2015; Gulmez, Erhan/P-9518-2015; Seixas, Joao/F-5441-2013; Sznajder, Andre/L-1621-2016; Vilela Pereira, Antonio/L-4142-2016; Haj Ahmad, Wael/E-6738-2016; Xie, Si/O-6830-2016; Leonardo, Nuno/M-6940-2016; Goh, Junghwan/Q-3720-2016; Govoni, Pietro/K-9619-2016; Tuominen, Eija/A-5288-2017; Yazgan, Efe/C-4521-2014; Paulini, Manfred/N-7794-2014; Gerbaudo, Davide/J-4536-2012; OI Servoli, Leonello/0000-0003-1725-9185; Tomei, Thiago/0000-0002-1809-5226; Novaes, Sergio/0000-0003-0471-8549; Azzi, Patrizia/0000-0002-3129-828X; de Jesus Damiao, Dilson/0000-0002-3769-1680; Montanari, Alessandro/0000-0003-2748-6373; Amapane, Nicola/0000-0001-9449-2509; Della Ricca, Giuseppe/0000-0003-2831-6982; Mundim, Luiz/0000-0001-9964-7805; Rolandi, Luigi (Gigi)/0000-0002-0635-274X; Ivanov, Andrew/0000-0002-9270-5643; Stahl, Achim/0000-0002-8369-7506; Tinoco Mendes, Andre David/0000-0001-5854-7699; Dudko, Lev/0000-0002-4462-3192; Katkov, Igor/0000-0003-3064-0466; Hektor, Andi/0000-0001-7873-8118; Wulz, Claudia-Elisabeth/0000-0001-9226-5812; Krammer, Manfred/0000-0003-2257-7751; Hill, Christopher/0000-0003-0059-0779; Wimpenny, Stephen/0000-0003-0505-4908; Troitsky, Sergey/0000-0001-6917-6600; Codispoti, Giuseppe/0000-0003-0217-7021; Cerrada, Marcos/0000-0003-0112-1691; Scodellaro, Luca/0000-0002-4974-8330; Gonzalez Suarez, Rebeca/0000-0002-6126-7230; Calvo Alamillo, Enrique/0000-0002-1100-2963; Vogel, Helmut/0000-0002-6109-3023; Marinho, Franciole/0000-0002-7327-0349; Ragazzi, Stefano/0000-0001-8219-2074; Benussi, Luigi/0000-0002-2363-8889; Russ, James/0000-0001-9856-9155; Grandi, Claudio/0000-0001-5998-3070; Lazzizzera, Ignazio/0000-0001-5092-7531; Sen, Sercan/0000-0001-7325-1087; D'Alessandro, Raffaello/0000-0001-7997-0306; Belyaev, Alexander/0000-0002-1733-4408; Trocsanyi, Zoltan/0000-0002-2129-1279; Konecki, Marcin/0000-0001-9482-4841; Hernandez Calama, Jose Maria/0000-0001-6436-7547; Bedoya, Cristina/0000-0001-8057-9152; Matorras, Francisco/0000-0003-4295-5668; My, Salvatore/0000-0002-9938-2680; Muelmenstaedt, Johannes/0000-0003-1105-6678; Rovelli, Tiziano/0000-0002-9746-4842; TUVE', Cristina/0000-0003-0739-3153; KIM, Tae Jeong/0000-0001-8336-2434; Arce, Pedro/0000-0003-3009-0484; Flix, Josep/0000-0003-2688-8047; Ozdemir, Kadri/0000-0002-0103-1488; Paganoni, Marco/0000-0003-2461-275X; Gulmez, Erhan/0000-0002-6353-518X; Seixas, Joao/0000-0002-7531-0842; Sznajder, Andre/0000-0001-6998-1108; Vilela Pereira, Antonio/0000-0003-3177-4626; Haj Ahmad, Wael/0000-0003-1491-0446; Xie, Si/0000-0003-2509-5731; Leonardo, Nuno/0000-0002-9746-4594; Goh, Junghwan/0000-0002-1129-2083; Govoni, Pietro/0000-0002-0227-1301; Tuominen, Eija/0000-0002-7073-7767; Yazgan, Efe/0000-0001-5732-7950; Paulini, Manfred/0000-0002-6714-5787; Gerbaudo, Davide/0000-0002-4463-0878; Heath, Helen/0000-0001-6576-9740 FU FMSR (Austria); FNRS (Belgium); FWO (Belgium); CNPq (Brazil); CAPES (Brazil); FAPERJ (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS (China); MoST (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences (Estonia); NICPB (Estonia); Academy of Finland (Finland); ME (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NKTH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); WCU (Korea); LAS (Lithuania); CINVESTAV (Mexico); CONACYT (Mexico); SEP (Mexico); UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia); MST (Russia); MAE (Russia); MSTD (Serbia); MICINN (Spain); CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK (Turkey); TAEK (Turkey); STFC (U.K.); DOE (U.S.); NSF (U.S.); JINR (Belarus); JINR (Georgia); JINR (Ukraine); JINR (Uzbekistan) FX We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from the following: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (U.K.); DOE and NSF (U.S.). NR 38 TC 40 Z9 40 U1 2 U2 38 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 FEB 23 PY 2011 VL 106 IS 8 AR 082001 DI 10.1103/PhysRevLett.106.082001 PG 15 WC Physics, Multidisciplinary SC Physics GA 725PB UT WOS:000287656700003 PM 21405566 ER PT J AU Wang, WX Hahm, TS Ethier, S Zakharov, LE Diamond, PH AF Wang, W. X. Hahm, T. S. Ethier, S. Zakharov, L. E. Diamond, P. H. TI Trapped Electron Mode Turbulence Driven Intrinsic Rotation in Tokamak Plasmas SO PHYSICAL REVIEW LETTERS LA English DT Article ID ANOMALOUS MOMENTUM TRANSPORT AB Progress from global gyrokinetic simulations in understanding the origin of intrinsic rotation in toroidal plasmas is reported. The turbulence-driven intrinsic torque associated with nonlinear residual stress generation due to zonal flow shear induced asymmetry in the parallel wave number spectrum is shown to scale close to linearly with plasma gradients and the inverse of the plasma current, qualitatively reproducing experimental empirical scalings of intrinsic rotation. The origin of current scaling is found to be enhanced k(parallel to) symmetry breaking induced by the increased radial variation of the safety factor as the current decreases. The intrinsic torque is proportional to the pressure gradient because both turbulence intensity and zonal flow shear, which are two key ingredients for driving residual stress, increase with turbulence drive, which is R/L(Te) and R/L(ne) for the trapped electron mode. C1 [Wang, W. X.; Hahm, T. S.; Ethier, S.; Zakharov, L. E.] Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA. [Diamond, P. H.] Univ Calif San Diego, La Jolla, CA 92093 USA. RP Wang, WX (reprint author), Princeton Univ, Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM wwang@pppl.gov FU U.S. DOE [DE-AC02-09CH11466]; SciDAC project for Gyrokinetic Particle Simulation of Turbulent Transport in Burning Plasmas FX Discussions with S. Kaye on experimental current scan studies are acknowledged. This work was supported by U.S. DOE Contract No. DE-AC02-09CH11466 and the SciDAC project for Gyrokinetic Particle Simulation of Turbulent Transport in Burning Plasmas. NR 14 TC 21 Z9 21 U1 1 U2 7 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 FEB 23 PY 2011 VL 106 IS 8 AR 085001 DI 10.1103/PhysRevLett.106.085001 PG 4 WC Physics, Multidisciplinary SC Physics GA 725PB UT WOS:000287656700007 PM 21405577 ER PT J AU Zaum, S Grube, K Schafer, R Bauer, ED Thompson, JD von Lohneysen, H AF Zaum, S. Grube, K. Schaefer, R. Bauer, E. D. Thompson, J. D. von Loehneysen, H. TI Towards the Identification of a Quantum Critical Line in the (p, B) Phase Diagram of CeCoIn5 with Thermal-Expansion Measurements SO PHYSICAL REVIEW LETTERS LA English DT Article ID PRESSURE-DEPENDENCE; CRITICAL-POINTS; SUPERCONDUCTIVITY; INSTABILITIES; MAGNETIZATION; TEMPERATURE; TRANSITION AB The low-temperature thermal expansion of CeCoIn5 single crystals measured parallel and perpendicular to magnetic fields B oriented along the c axis yields the volume thermal-expansion coefficient beta. Considerable deviations of beta(T) from Fermi-liquid behavior occur already within the superconducting region of the (B, T) phase diagram and become maximal at the upper critical field B-c2(0). However, beta(T) and the Gruneisen parameter Gamma are incompatible with a quantum critical point at B-c2(0), but allow for a quantum criticality shielded by superconductivity and extending to negative pressures for B < B-c2(0). We construct a tentative (p, B, T) phase diagram of CeCoIn5 suggesting a quantum critical line in the (p, B) plane. C1 [Zaum, S.; Grube, K.; Schaefer, R.; von Loehneysen, H.] Karlsruhe Inst Technol, Inst Festkorperphys, D-76021 Karlsruhe, Germany. [Zaum, S.; von Loehneysen, H.] Karlsruhe Inst Technol, Inst Phys, D-76031 Karlsruhe, Germany. [Bauer, E. D.; Thompson, J. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Zaum, S (reprint author), Karlsruhe Inst Technol, Inst Festkorperphys, D-76021 Karlsruhe, Germany. RI Bauer, Eric/D-7212-2011; OI Bauer, Eric/0000-0003-0017-1937 FU Deutsche Forschungsgemeinschaft [FOR 960]; U.S. DOE, Office of Basic Energy Sciences, Division of Materials Science and Engineering FX This work was supported by the Deutsche Forschungsgemeinschaft in the form of the Research Unit FOR 960 "Quantum Phase Transitions''. Work at Los Alamos was performed under the auspices of the U.S. DOE, Office of Basic Energy Sciences, Division of Materials Science and Engineering. NR 33 TC 34 Z9 35 U1 1 U2 26 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 FEB 23 PY 2011 VL 106 IS 8 AR 087003 DI 10.1103/PhysRevLett.106.087003 PG 4 WC Physics, Multidisciplinary SC Physics GA 725PB UT WOS:000287656700013 PM 21405592 ER PT J AU Schutzer, SE Angel, TE Liu, T Schepmoes, AA Clauss, TR Adkins, JN Camp, DG Holland, BK Bergquist, J Coyle, PK Smith, RD Fallon, BA Natelson, BH AF Schutzer, Steven E. Angel, Thomas E. Liu, Tao Schepmoes, Athena A. Clauss, Therese R. Adkins, Joshua N. Camp, David G., II Holland, Bart K. Bergquist, Jonas Coyle, Patricia K. Smith, Richard D. Fallon, Brian A. Natelson, Benjamin H. TI Distinct Cerebrospinal Fluid Proteomes Differentiate Post-Treatment Lyme Disease from Chronic Fatigue Syndrome SO PLOS ONE LA English DT Article ID TANDEM MASS-SPECTROMETRY; CYCLIN-DEPENDENT KINASE-5; NEUROLOGIC MANIFESTATIONS; PROTEIN IDENTIFICATIONS; ACCURATE MASS; STRATEGY; ENCEPHALOPATHY; VALIDATION; PEPTIDE; PLASMA AB Background: Neurologic Post Treatment Lyme disease (nPTLS) and Chronic Fatigue (CFS) are syndromes of unknown etiology. They share features of fatigue and cognitive dysfunction, making it difficult to differentiate them. Unresolved is whether nPTLS is a subset of CFS. Methods and Principal Findings: Pooled cerebrospinal fluid (CSF) samples from nPTLS patients, CFS patients, and healthy volunteers were comprehensively analyzed using high-resolution mass spectrometry (MS), coupled with immunoaffinity depletion methods to reduce protein-masking by abundant proteins. Individual patient and healthy control CSF samples were analyzed directly employing a MS-based label-free quantitative proteomics approach. We found that both groups, and individuals within the groups, could be distinguished from each other and normals based on their specific CSF proteins (p<0.01). CFS (n = 43) had 2,783 non-redundant proteins, nPTLS (n = 25) contained 2,768 proteins, and healthy normals had 2,630 proteins. Preliminary pathway analysis demonstrated that the data could be useful for hypothesis generation on the pathogenetic mechanisms underlying these two related syndromes. Conclusions: nPTLS and CFS have distinguishing CSF protein complements. Each condition has a number of CSF proteins that can be useful in providing candidates for future validation studies and insights on the respective mechanisms of pathogenesis. Distinguishing nPTLS and CFS permits more focused study of each condition, and can lead to novel diagnostics and therapeutic interventions. C1 [Schutzer, Steven E.] Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Med, Newark, NJ 07103 USA. [Natelson, Benjamin H.] Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Neurol, Newark, NJ 07103 USA. [Holland, Bart K.] Univ Med & Dent New Jersey, New Jersey Med Sch, Div Biostat & Epidemiol, Newark, NJ 07103 USA. [Angel, Thomas E.; Liu, Tao; Schepmoes, Athena A.; Clauss, Therese R.; Adkins, Joshua N.; Camp, David G., II; Smith, Richard D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Bergquist, Jonas] Uppsala Univ, Dept Phys & Analyt Chem, Uppsala, Sweden. [Coyle, Patricia K.] SUNY Stony Brook, Dept Neurol, Stony Brook, NY 11794 USA. [Fallon, Brian A.] Columbia Univ, Dept Psychiat, Med Ctr, New York, NY USA. [Natelson, Benjamin H.] Albert Einstein Coll Med, Dept Pain Med & Palliat Care, Bronx, NY USA. [Natelson, Benjamin H.] Albert Einstein Coll Med, Beth Israel Med Ctr, Bronx, NY USA. RP Schutzer, SE (reprint author), Univ Med & Dent New Jersey, New Jersey Med Sch, Dept Med, Newark, NJ 07103 USA. EM schutzer@umdnj.edu RI Smith, Richard/J-3664-2012; Liu, Tao/A-9020-2013; Adkins, Joshua/B-9881-2013; Bergquist, Jonas/C-5894-2015; OI Smith, Richard/0000-0002-2381-2349; Liu, Tao/0000-0001-9529-6550; Adkins, Joshua/0000-0003-0399-0700; Bergquist, Jonas/0000-0002-4597-041X FU National Institutes of Health, through NIAID [AI088765]; NIDA [DA021071]; NINDS [NS38636]; National Center for Research Resources [RR018522]; Swedish Research Council [621-2008-3592]; Uppsala Berzelii Technology Center for Neurodiagnostics; SciLifeLab-Uppsala; Time for Lyme; Lyme Disease Association; Tami Fund; Department of Energy (DOE) FX National Institutes of Health, through NIAID (grant AI088765), NIDA (grant DA021071), NINDS (grant NS38636), the National Center for Research Resources (RR018522), the Swedish Research Council (621-2008-3592), Uppsala Berzelii Technology Center for Neurodiagnostics, SciLifeLab-Uppsala, Time for Lyme, Lyme Disease Association, and the Tami Fund for support of portions of the research. Pacific Northwest National Laboratory units are located in the Environmental Molecular Sciences Laboratory, a national scientific user facility, sponsored by the Department of Energy (DOE), operated by Battelle Memorial Institute for the DOE under Contract DE-AC05-76RL0 1830. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 40 TC 38 Z9 39 U1 0 U2 12 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 FEB 23 PY 2011 VL 6 IS 2 AR e17287 DI 10.1371/journal.pone.0017287 PG 8 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 725PJ UT WOS:000287657500048 PM 21383843 ER PT J AU Volkow, ND Tomasi, D Wang, GJ Fowler, JS Telang, F Goldstein, RZ Alia-Klein, N Wong, C AF Volkow, Nora D. Tomasi, Dardo Wang, Gene-Jack Fowler, Joanna S. Telang, Frank Goldstein, Rita Z. Alia-Klein, Nelly Wong, Christopher TI Reduced Metabolism in Brain "Control Networks" following Cocaine-Cues Exposure in Female Cocaine Abusers SO PLOS ONE LA English DT Article ID GENDER-DIFFERENCES; DEPENDENT PATIENTS; TREATMENT-SEEKING; SUBSTANCE-ABUSE; SMOKED COCAINE; WOMEN; MEN; PROGESTERONE; ADDICTION; STRESS AB Objective: Gender differences in vulnerability for cocaine addiction have been reported. Though the mechanisms are not understood, here we hypothesize that gender differences in reactivity to conditioned-cues, which contributes to relapse, are involved. Method: To test this we compared brain metabolism (using PET and (18)FDG) between female (n = 10) and male (n = 16) active cocaine abusers when they watched a neutral video (nature scenes) versus a cocaine-cues video. Results: Self-reports of craving increased with the cocaine-cue video but responses did not differ between genders. In contrast, changes in whole brain metabolism with cocaine-cues differed by gender (p<0.05); females significantly decreased metabolism (-8.6%+/- 10) whereas males tended to increase it (+5.5% +/- 18). SPM analysis (Cocaine-cues vs Neutral) in females revealed decreases in frontal, cingulate and parietal cortices, thalamus and midbrain (p<0.001) whereas males showed increases in right inferior frontal gyrus (BA 44/45) (only at p<0.005). The gender-cue interaction showed greater decrements with Cocaine-cues in females than males (p<0.001) in frontal (BA 8, 9, 10), anterior cingulate (BA 24, 32), posterior cingulate (BA 23, 31), inferior parietal (BA 40) and thalamus (dorsomedial nucleus). Conclusions: Females showed greater brain reactivity to cocaine-cues than males but no differences in craving, suggesting that there may be gender differences in response to cues that are not linked with craving but could affect subsequent drug use. Specifically deactivation of brain regions from "control networks" (prefrontal, cingulate, inferior parietal, thalamus) in females could increase their vulnerability to relapse since it would interfere with executive function (cognitive inhibition). This highlights the importance of gender tailored interventions for cocaine addiction. C1 [Volkow, Nora D.] Natl Inst Drug Abuse, Bethesda, MD USA. [Volkow, Nora D.; Tomasi, Dardo; Telang, Frank] NIAAA, Bethesda, MD USA. [Wang, Gene-Jack; Fowler, Joanna S.; Goldstein, Rita Z.; Alia-Klein, Nelly; Wong, Christopher] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. RP Volkow, ND (reprint author), Natl Inst Drug Abuse, Bethesda, MD USA. EM nvolkow@nida.nih.gov RI Tomasi, Dardo/J-2127-2015 FU NIH (NIAAA); DOE [DE-AC01-76CH00016]; Medical Directions, Inc.; Federal Judicial Center; Gruter Institute for Law and Behavioral Research FX This research was supported by NIH's Intramural Research Program (NIAAA), and by DOE (DE-AC01-76CH00016). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; Dr. Volkow reports no competing interests; Dr. Tomasi reports no competing interests; Dr. Wang reports no competing interests; Dr. Fowler reports no competing interests; Dr. Telang reports no competing interests; Dr. Goldstein received consultation fee from Medical Directions, Inc. and honoraria fee from Federal Judicial Center and the Gruter Institute for Law and Behavioral Research; Dr. Klein reports no competing interests; Mr. Wong reports no competing interests. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials. NR 47 TC 31 Z9 31 U1 2 U2 10 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 FEB 23 PY 2011 VL 6 IS 2 AR e16573 DI 10.1371/journal.pone.0016573 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 725PJ UT WOS:000287657500011 PM 21373180 ER PT J AU Altarawneh, MM Harrison, N McDonald, RD Balakirev, FF Mielke, CH Tobash, PH Zhu, JX Thompson, JD Ronning, F Bauer, ED AF Altarawneh, M. M. Harrison, N. McDonald, R. D. Balakirev, F. F. Mielke, C. H. Tobash, P. H. Zhu, J. -X. Thompson, J. D. Ronning, F. Bauer, E. D. TI Fermi surface of CePt2In7: A two-dimensional analog of CeIn3 SO PHYSICAL REVIEW B LA English DT Article ID CRITICAL PRESSURE; SUPERCONDUCTIVITY; CERHIN5; TRANSITION; METALS AB We report magnetic quantum oscillations in magnetic fields extending to similar to 60 T in single crystals of the body-centered tetragonal antiferromagnet CePt2In7-recently discovered to exhibit pressure-induced superconductivity at T-c approximate to 2.1 K. Despite the two-dimensionality of its Fermi surface, the microscopic electronic properties of layered CePt2In7 are revealed to be more similar to those of cubic CeIn3 than those of layered CeRhIn5. A significant field-induced change in the Fermi surface occurs below H-m approximate to 45 T in both CePt2In7 and CeIn3, where it is broken into small pockets with field-dependent effective masses-signaling partial 4f-electron involvement in the Fermi surface for H < H-m. Since CePt2In7 and CeIn3 differ only in the dimensionality of their Ce sublattices, an ideal pair of compounds for investigating the effect of dimensionality on superconductivity is realized. C1 [Altarawneh, M. M.; Harrison, N.; McDonald, R. D.; Balakirev, F. F.; Mielke, C. H.; Tobash, P. H.; Zhu, J. -X.; Thompson, J. D.; Ronning, F.; Bauer, E. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Altarawneh, MM (reprint author), Los Alamos Natl Lab, MS E536, Los Alamos, NM 87545 USA. RI Bauer, Eric/D-7212-2011; McDonald, Ross/H-3783-2013; OI McDonald, Ross/0000-0002-0188-1087; Ronning, Filip/0000-0002-2679-7957; Harrison, Neil/0000-0001-5456-7756; Bauer, Eric/0000-0003-0017-1937; Zhu, Jianxin/0000-0001-7991-3918; Mcdonald, Ross/0000-0002-5819-4739 FU U.S. Department of Energy (DOE), Office of Basic Energy Sciences (BES) for the "Science of 100 Tesla"; U.S. DOE, Office of BES, Division of Materials Sciences and Engineering; Laboratory Directed Research and Development program; U.S. DOE; National Science Foundation; State of Florida FX M.M.A., N.H., R. D. M. D., and F. F. B. acknowledge the provision of funding by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences (BES) for the "Science of 100 Tesla." Work by P. H. T., J.X.Z., F. R., J.D.T., and E. D. B. is supported under the auspices of the U.S. DOE, Office of BES, Division of Materials Sciences and Engineering and supported in part by the Laboratory Directed Research and Development program. Experiments were performed at the National High Magnetic Field Laboratory, which is jointly supported by the U.S. DOE, the National Science Foundation, and the State of Florida. NR 27 TC 14 Z9 14 U1 7 U2 29 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 22 PY 2011 VL 83 IS 8 AR 081103 DI 10.1103/PhysRevB.83.081103 PG 4 WC Physics, Condensed Matter SC Physics GA 724OF UT WOS:000287585400001 ER PT J AU apRoberts-Warren, N Dioguardi, AP Shockley, AC Lin, CH Crocker, J Klavins, P Pines, D Yang, YF Curro, NJ AF apRoberts-Warren, N. Dioguardi, A. P. Shockley, A. C. Lin, C. H. Crocker, J. Klavins, P. Pines, D. Yang, Y. -F. Curro, N. J. TI Kondo liquid emergence and relocalization in the approach to antiferromagnetic ordering in CePt2In7 SO PHYSICAL REVIEW B LA English DT Article ID HEAVY; SUPERCONDUCTIVITY; TEMPERATURE; LATTICE; MATTER AB CePt2In7 is a heavy fermion system with an antiferromagnetic transition at T-N = 5.2 K at ambient pressure. Pt-195 Knight shift measurements reveal anomalous behavior below T* similar to 40 K. By comparing the susceptibility and Knight shift data, we extract the individual contributions of the local moments and the heavy electron components to the magnetic susceptibility. Our results confirm the scaling predictions of the standard model, but reveal a surprising result, namely, that below 14 K the hybridized quasiparticles begin to "relocalize," an important precursor to their joining the local moments in becoming antiferromagnetically ordered at T-N. C1 [apRoberts-Warren, N.; Dioguardi, A. P.; Shockley, A. C.; Lin, C. H.; Crocker, J.; Klavins, P.; Pines, D.; Curro, N. J.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Yang, Y. -F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Yang, Y. -F.] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. [Yang, Y. -F.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. RP apRoberts-Warren, N (reprint author), Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. EM curro@physics.ucdavis.edu RI Curro, Nicholas/D-3413-2009 OI Curro, Nicholas/0000-0001-7829-0237 FU National Nuclear Security Administration through DOE [DOE DE-FG52-09NA29464]; US Department of Energy FX We thank M. Matsumoto and S. Savrasov for stimulating discussions. This research was sponsored by the National Nuclear Security Administration under the Stewardship Science Academic Alliances Program through DOE Research Grant No. DOE DE-FG52-09NA29464. D. P. thanks ICAM for its support, and work at Los Alamos was performed under the auspices of the US Department of Energy. NR 21 TC 8 Z9 8 U1 7 U2 24 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 22 PY 2011 VL 83 IS 6 AR 060408 DI 10.1103/PhysRevB.83.060408 PG 4 WC Physics, Condensed Matter SC Physics GA 724NV UT WOS:000287584400003 ER PT J AU Kondo, S Katoh, Y Snead, LL AF Kondo, Sosuke Katoh, Yutai Snead, Lance L. TI Analysis of grain boundary sinks and interstitial diffusion in neutron-irradiated SiC SO PHYSICAL REVIEW B LA English DT Article ID TEMPERATURES; DEFECTS AB The widths of the interstitial loop denuded zone (DZ) along grain boundaries were examined for 3C-SiC irradiated at 1010-1380 degrees C by transmission electron microscopy (TEM) in an effort to obtain the activation energy of interstitial migration. Denuded-zone widths as small as 17 nm were observed below 1130 degrees C, indicating that a substantial population of "TEM invisible" voids of diameter <0.7 significantly contribute to interstitial annihilation. By using the obtained loop DZ width and the matrix sink strength (including the invisible voids), the activation energy of interstitial diffusion was determined to be 1.5 eV for the slower moving Si interstitial of SiC by application of simple reaction-diffusion equations. C1 [Kondo, Sosuke; Katoh, Yutai; Snead, Lance L.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. RP Kondo, S (reprint author), Kyoto Univ Gokasho, Inst Adv Energy, Kyoto 6110011, Japan. EM kondo@iae.kyoto-u.ac.jp FU Office of Fusion Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725]; UT-Battelle, LLC FX This research was supported by the Office of Fusion Energy Sciences, U.S. Department of Energy under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. Materials used in this work were irradiated in the High Flux Isotope Reactor, a DOE user facility. NR 22 TC 17 Z9 17 U1 2 U2 25 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD FEB 22 PY 2011 VL 83 IS 7 AR 075202 DI 10.1103/PhysRevB.83.075202 PG 6 WC Physics, Condensed Matter SC Physics GA 724NX UT WOS:000287584600006 ER PT J AU Killian, CE Metzler, RA Gong, YT Churchill, TH Olson, IC Trubetskoy, V Christensen, MB Fournelle, JH De Carlo, F Cohen, S Mahamid, J Scholl, A Young, A Doran, A Wilt, FH Coppersmith, SN Gilbert, PUPA AF Killian, Christopher E. Metzler, Rebecca A. Gong, Yutao Churchill, Tyler H. Olson, Ian C. Trubetskoy, Vasily Christensen, Matthew B. Fournelle, John H. De Carlo, Francesco Cohen, Sidney Mahamid, Julia Scholl, Andreas Young, Anthony Doran, Andrew Wilt, Fred H. Coppersmith, Susan N. Gilbert, P. U. P. A. TI Self-Sharpening Mechanism of the Sea Urchin Tooth SO ADVANCED FUNCTIONAL MATERIALS LA English DT Article ID MICRO-ARCHITECTURE; TEETH; CALCITE; DESIGN; COMPOSITE; CRYSTAL; ECHINODERMATA; ECHINOIDEA; MORPHOLOGY; PROTEINS AB The sea urchin tooth is a mosaic of calcite crystals shaped precisely into plates and fibers, cemented together by a robust calcitic polycrystalline matrix. The tooth is formed continuously at one end, while it grinds and wears at the opposite end, the sharp tip. Remarkably, these teeth enable the sea urchin to scrape and bore holes into rock, yet the teeth remain sharp rather than dull with use. Here we describe the detailed structure of the tooth of the California purple sea urchin Strongylocentrotus purpuratus, and focus on the self-sharpening mechanism. Using high-resolution X-ray photoelectron emission spectromicroscopy (X-PEEM), scanning electron microscopy (SEM), EDX analysis, nanoindentation, and X-ray micro-tomography, we deduce that the sea urchin tooth self-sharpens by fracturing at discontinuities in the material. These are organic layers surrounding plates and fibers that behave as the "fault lines" in the tooth structure, as shown by nanoindentation. Shedding of tooth components at these discontinuities exposes the robust central part of the tooth, aptly termed "the stone", which becomes the grinding tip. The precise design and position of the plates and fibers determines the profile of the tooth tip, so as the tooth wears it maintains a tip that is continually renewed and remains sharp. This strategy may be used for the top-down or bottom-up fabrication of lamellar materials, to be used for mechanical functions at the nano-and micrometer scale. C1 [Killian, Christopher E.; Metzler, Rebecca A.; Gong, Yutao; Churchill, Tyler H.; Olson, Ian C.; Trubetskoy, Vasily; Christensen, Matthew B.; Coppersmith, Susan N.; Gilbert, P. U. P. A.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. [Killian, Christopher E.; Wilt, Fred H.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Fournelle, John H.] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA. [De Carlo, Francesco] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Cohen, Sidney] Weizmann Inst Sci, Dept Chem Res Support, IL-76100 Rehovot, Israel. [Mahamid, Julia] Weizmann Inst Sci, Dept Biol Struct, IL-76100 Rehovot, Israel. [Scholl, Andreas; Young, Anthony; Doran, Andrew] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Killian, CE (reprint author), Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA. EM pupa@physics.wisc.edu RI Cohen, Sidney/J-7153-2012; Scholl, Andreas/K-4876-2012; Gilbert, Pupa/A-6299-2010; OI Cohen, Sidney/0000-0003-4255-3351; Gilbert, Pupa/0000-0002-0139-2099; Doran, Andrew/0000-0001-5158-4569 FU DOE [DE-FG02-07ER15899, DE-AC02-05CH11231, DE-AC02-06CH11357]; NSF [CHE-0613972]; UW-Hamel FX We thank Lia Addadi and Steve Weiner for useful discussions and for reviewing the manuscript. We thank Martin Kunz and Nobumichi Tamura for diffraction experiments, and Jamey P. Weichert for the use of Amira software. This work was supported by the DOE award DE-FG02-07ER15899, NSF award CHE-0613972, and UW-Hamel Awards to P. Gilbert. The X-PEEM experiments were performed at the ALS, supported by the DOE under contract DE-AC02-05CH11231. Micro-tomography was done at the APS, supported by the DOE under contract DE-AC02-06CH11357. NR 42 TC 29 Z9 29 U1 7 U2 58 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY SN 1616-301X J9 ADV FUNCT MATER JI Adv. Funct. Mater. PD FEB 22 PY 2011 VL 21 IS 4 BP 682 EP 690 DI 10.1002/adfm.201001546 PG 9 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 725TA UT WOS:000287667800009 ER PT J AU Zhang, S Shao, YY Yin, GP Lin, YH AF Zhang, Sheng Shao, Yuyan Yin, Geping Lin, Yuehe TI Self-assembly of Pt nanoparticles on highly graphitized carbon nanotubes as an excellent oxygen-reduction catalyst SO APPLIED CATALYSIS B-ENVIRONMENTAL LA English DT Article DE Fuel cells; Graphitized carbon nanotubes; Electrocatalyst; Oxygen reduction; Durability; Self-assembly ID METHANOL FUEL-CELLS; FORMIC-ACID OXIDATION; MESOPOROUS CARBON; ALLOY NANOPARTICLES; SUPPORTED PLATINUM; PTRU NANOPARTICLES; ELECTROCATALYSTS; DURABILITY; CATHODE; PT/C AB Platinum nanoparticles/graphitic carbon nanotubes (GCNTs) nanocomposites are fabricated with electrostatic self-assembly technology. Pt precursors are uniformly distributed on poly(diallyldimethylammonium chloride)-functionalized GCNTs surface (PDDA-GCNTs) via the electrostatic interaction and then in situ reduced to Pt nanoparticles in ethylene glycol, where PDDA is not only used as the wrapping polymer for GCNTs to preserve the integrity and the electronic structure of GCNTs, but also facilitates the uniform distribution of Pt nanoparticles on the surface of GCNTs. X-ray diffraction patterns and transmission electron microscope images reveal that Pt nanoparticles with an average size of similar to 2.7 nm are uniformly dispersed on highly graphitized GCNTs. Significant enhancement in the electrocatalytic activity on Pt/PDDA-GCNTs catalyst towards oxygen reduction reaction (ORR) has been demonstrated. In addition, this catalyst also shows enhanced electrochemical durability due to the high graphitization degree of GCNTs. This provides a facile and eco-friendly approach to large-scale production of high performance fuel cell eletrocatalysts. (C) 2010 Elsevier B.V. All rights reserved. C1 [Zhang, Sheng; Yin, Geping] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Sch Chem Engn & Technol, Harbin 150001, Peoples R China. [Zhang, Sheng; Shao, Yuyan; Lin, Yuehe] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Yin, GP (reprint author), Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Sch Chem Engn & Technol, Harbin 150001, Peoples R China. EM yingphit@hit.edu.cn; yuehe.lin@pnl.gov RI Shao, Yuyan/A-9911-2008; Zhang, Sheng/H-2452-2011; Lin, Yuehe/D-9762-2011 OI Shao, Yuyan/0000-0001-5735-2670; Zhang, Sheng/0000-0001-7532-1923; Lin, Yuehe/0000-0003-3791-7587 FU LDRD program; DOE's Office of Biological and Environmental Research and located at PNNL [DE-AC05-76RL01830]; China Scholarship Council; PNNL; Natural Science Foundation of China [50872027] FX The work was done at Pacific Northwest National Laboratory (PNNL) and was supported by a LDRD program. The characterization was performed using EMSL, a national scientific user facility sponsored by the DOE's Office of Biological and Environmental Research and located at PNNL. PNNL is operated for the DOE by Battelle under Contract DE-AC05-76RL01830. SZ acknowledges a fellowship from the China Scholarship Council and PNNL to perform this work at PNNL. GY acknowledges the support from the Natural Science Foundation of China (no. 50872027). The authors would like to acknowledge Dr. Chongmin Wang and Mr. Mark Engelhard at EMSL for TEM and XPS characterization. NR 41 TC 67 Z9 69 U1 4 U2 68 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0926-3373 EI 1873-3883 J9 APPL CATAL B-ENVIRON JI Appl. Catal. B-Environ. PD FEB 22 PY 2011 VL 102 IS 3-4 BP 372 EP 377 DI 10.1016/j.apcatb.2010.11.029 PG 6 WC Chemistry, Physical; Engineering, Environmental; Engineering, Chemical SC Chemistry; Engineering GA 729JX UT WOS:000287946800003 ER PT J AU Dancheck, B Ragusa, MJ Allaire, M Nairn, AC Page, R Peti, W AF Dancheck, Barbara Ragusa, Michael J. Allaire, Marc Nairn, Angus C. Page, Rebecca Peti, Wolfgang TI Molecular Investigations of the Structure and Function of the Protein Phosphatase 1-Spinophilin-Inhibitor 2 Heterotrimeric Complex SO BIOCHEMISTRY LA English DT Article ID SMALL-ANGLE SCATTERING; CATALYTIC SUBUNIT; DENDRITIC SPINES; DOCKING MOTIF; INHIBITOR-2; SPINOPHILIN; RECOGNITION; MECHANISMS; DIVERSITY; CYCLE AB Regulation of the major Ser/Thr phosphatase protein phosphatase 1 (PP1) is controlled by a diverse array of targeting and inhibitor proteins. Though many PP1 regulatory proteins share at least one PP1 binding motif, usually the RVxF motif, it was recently discovered that certain pairs of targeting and inhibitor proteins bind PP1 simultaneously to form PP1 heterotrimeric complexes. To date, structural information for these heterotrimeric complexes and, in turn, how they direct PP1 activity is entirely lacking. Using a combination of NMR spectroscopy, biochemistry, and small-angle X-ray scattering (SAXS), we show that major structural rearrangements in both spinophilin (targeting) and inhibitor 2 (I-2, inhibitor) are essential for the formation of the heterotrimeric PP1-spinophilin-I-2 (PSI) complex. The RVxF motif of I-2 is released from PP1 during the formation of PSI, making the less prevalent SILK motif of I-2 essential for complex stability. The release of the I-2 RVxF motif allows for enhanced flexibility of both I-2 and spinophilin in the heterotrimeric complex. In addition, we used inductively coupled plasma atomic emission spectroscopy to show that PP1 contains two metals in both heterodimeric complexes (PP1 spinophilin and PP1-I-2) and PSI, demonstrating that PSI retains the biochemical characteristics of the PP1-I-2 holoenzyme. Finally, we combined the NMR and biochemical data with SAXS and molecular dynamics simulations to generate a structural model of the full heterotrimeric PSI complex. Collectively, these data reveal the molecular events that enable PP1 heterotrimeric complexes to exploit both the targeting and inhibitory features of the PP1-regulatory proteins to form multifunctional PP1 holoenzymes. C1 [Dancheck, Barbara; Peti, Wolfgang] Brown Univ, Dept Mol Pharmacol Physiol & Biotechnol, Providence, RI 02912 USA. [Ragusa, Michael J.; Page, Rebecca] Brown Univ, Dept Mol Biol Cell Biol & Biochem, Providence, RI 02912 USA. [Allaire, Marc] Brookhaven Natl Lab, Upton, NY 11973 USA. [Nairn, Angus C.] Yale Univ, Sch Med, Dept Psychiat, New Haven, CT 06511 USA. RP Peti, W (reprint author), Brown Univ, Dept Mol Pharmacol Physiol & Biotechnol, Providence, RI 02912 USA. EM Wolfgang_Peti@brown.edu RI Peti, Wolfgang/L-3492-2014; OI Nairn, Angus/0000-0002-7075-0195 FU National Science Foundation; National Institute of Neurological Disorders and Stroke [R01NS056128]; American Cancer Society [RSG-08-067-01-LIB]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX This material is based upon work supported by a National Science Foundation Graduate Research Fellowship to B.D. The project described was supported by Grant R01NS056128 from the National Institute of Neurological Disorders and Stroke to W.P. and an American Cancer Society research scholar grant (RSG-08-067-01-LIB) to R. P. 800 MHz NMR data were recorded at Brandeis University (NIH S10-RR017269). Use of the National Synchrotron Light Source, Brookhaven National Laboratory, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 41 TC 19 Z9 19 U1 0 U2 11 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0006-2960 J9 BIOCHEMISTRY-US JI Biochemistry PD FEB 22 PY 2011 VL 50 IS 7 BP 1238 EP 1246 DI 10.1021/bi101774g PG 9 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 720FV UT WOS:000287266900014 PM 21218781 ER PT J AU Choi, M Sukumar, N Mathews, FS Liu, AM Davidson, VL AF Choi, Moonsung Sukumar, Narayanasami Mathews, F. Scott Liu, Aimin Davidson, Victor L. TI Proline 96 of the Copper Ligand Loop of Amicyanin Regulates Electron Transfer from Methylamine Dehydrogenase by Positioning Other Residues at the Protein-Protein Interface SO BIOCHEMISTRY LA English DT Article ID SITE-DIRECTED MUTAGENESIS; CYTOCHROME C-551I COMPLEX; PARACOCCUS-DENITRIFICANS; TRYPTOPHAN TRYPTOPHYLQUINONE; CRYSTAL-STRUCTURE; ALCALIGENES-FAECALIS; ANGSTROM RESOLUTION; MOLECULAR-GRAPHICS; TERNARY COMPLEXES; TRUE AB Amicyanin is a type 1 copper protein that serves as an electron acceptor for methylamine dehydrogenase (MADH). The site of interaction with MADH is a "hydrophobic patch" of amino acid residues including those that comprise a "ligand loop" that provides three of the four copper ligands. Three prolines are present in this region. Pro94 of the ligand loop was previously shown to strongly influence the redox potential of amicyanin but not affinity for MADH or mechanism of electron transfer (ET). In this study Pro96 of the ligand loop was mutated. P96A and P96G mutations did not affect the spectroscopic or redox properties of amicyanin but increased the K(d) for complex formation with MADH and altered the kinetic mechanism for the interprotein ET reaction. Values of reorganization energy (lambda) and electronic coupling (H(AB)) for the ET reaction with MADH were both increased by the mutation, indicating that the true ET reaction observed with native amicyanin was now gated by or coupled to a reconfiguration of the proteins within the complex. The crystal structure of P96G amicyanin was very similar to that of native amicyanin, but notably, in addition to the change in Pro96, the side chains of residues Phe97 and Arg99 were oriented differently. These two residues were previously shown to make contacts with MADH that were important for stabilizing the amicyanin-MADH complex. The values of K(d), lambda, and H(AB) for the reactions of the Pro96 mutants with MADH are remarkably similar to those obtained previously for P52G amicyanin. Mutation of this proline, also in the hydrophobic patch, caused reorientation of the side chain of Met51, another reside that interacted with MADH and caused a change in the kinetic mechanism of ET from MADH. These results show that proline residues near the copper site play key roles in positioning other amino acid residues at the amicyanin-MADH interface not only for specific binding to the redox protein partner but also to optimize the orientation of proteins for interprotein ET. C1 [Choi, Moonsung; Davidson, Victor L.] Univ Mississippi, Med Ctr, Dept Biochem, Jackson, MS 39216 USA. [Sukumar, Narayanasami] Cornell Univ, Argonne Natl Lab, NE CAT, Argonne, IL 60439 USA. [Sukumar, Narayanasami] Cornell Univ, Argonne Natl Lab, Dept Chem & Chem Biol, Argonne, IL 60439 USA. [Mathews, F. Scott] Washington Univ, Sch Med, Dept Biochem & Mol Biophys, St Louis, MO 63110 USA. [Liu, Aimin] Georgia State Univ, Dept Chem, Atlanta, GA 30302 USA. RP Davidson, VL (reprint author), Univ Mississippi, Med Ctr, Dept Biochem, Jackson, MS 39216 USA. EM vdavidson@umc.edu RI Liu, Aimin/C-1572-2017; OI Liu, Aimin/0000-0002-4182-8176; Davidson, Victor/0000-0002-1966-7302 FU NIH [GM-41574]; NSF [MCB 0843537]; NCRR of NIH [RR-15301]; U.S. DOE, Office of Science, Office of Basic Energy Science [DE-AC02-06CH11357] FX This work was supported by NIH Grant GM-41574 (V.L.D.) and NSF Grant MCB 0843537 (A.L.). This work and the 24ID-C beamline used to collect data were supported by RR-15301 (NE-CAT facility at the APS) from NCRR of NIH. Use of the APS is supported by the U.S. DOE, Office of Science, Office of Basic Energy Science, Contract No. DE-AC02-06CH11357. NR 58 TC 4 Z9 4 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0006-2960 J9 BIOCHEMISTRY-US JI Biochemistry PD FEB 22 PY 2011 VL 50 IS 7 BP 1265 EP 1273 DI 10.1021/bi101794y PG 9 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 720FV UT WOS:000287266900017 PM 21268585 ER PT J AU Dunbar, J Cohn, JD Wall, ME AF Dunbar, John Cohn, Judith D. Wall, Michael E. TI Consistency of gene starts among Burkholderia genomes SO BMC GENOMICS LA English DT Article ID BACTERIAL GENES; SEQUENCES; DNA AB Background: Evolutionary divergence in the position of the translational start site among orthologous genes can have significant functional impacts. Divergence can alter the translation rate, degradation rate, subcellular location, and function of the encoded proteins. Results: Existing Genbank gene maps for Burkholderia genomes suggest that extensive divergence has occurred-53% of ortholog sets based on Genbank gene maps had inconsistent gene start sites. However, most of these inconsistencies appear to be gene-calling errors. Evolutionary divergence was the most plausible explanation for only 17% of the ortholog sets. Correcting probable errors in the Genbank gene maps decreased the percentage of ortholog sets with inconsistent starts by 68%, increased the percentage of ortholog sets with extractable upstream intergenic regions by 32%, increased the sequence similarity of intergenic regions and predicted proteins, and increased the number of proteins with identifiable signal peptides. Conclusions: Our findings highlight an emerging problem in comparative genomics: single-digit percent errors in gene predictions can lead to double-digit percentages of inconsistent ortholog sets. The work demonstrates a simple approach to evaluate and improve the quality of gene maps. C1 [Dunbar, John; Wall, Michael E.] Los Alamos Natl Lab, Biosci Div, Ctr Nonlinear Studies, Comp Computat & Stat Sci Div, Los Alamos, NM 87545 USA. RP Dunbar, J (reprint author), Los Alamos Natl Lab, Biosci Div, Ctr Nonlinear Studies, Comp Computat & Stat Sci Div, Los Alamos, NM 87545 USA. EM dunbar@lanl.gov OI Cohn, Judith/0000-0002-1333-3395; Alexandrov, Ludmil/0000-0003-3596-4515 FU Los Alamos National Laboratory [20080138DR] FX A Laboratory Directed Research and Development grant, 20080138DR, from Los Alamos National Laboratory, supported this work. We thank two anonymous reviewers for their suggestions that improved the manuscript. NR 14 TC 9 Z9 9 U1 0 U2 3 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2164 J9 BMC GENOMICS JI BMC Genomics PD FEB 22 PY 2011 VL 12 AR 125 DI 10.1186/1471-2164-12-125 PG 13 WC Biotechnology & Applied Microbiology; Genetics & Heredity SC Biotechnology & Applied Microbiology; Genetics & Heredity GA 730IM UT WOS:000288027000001 PM 21342528 ER PT J AU Jin, Z Lu, W O'Neill, KJ Parilla, PA Simpson, LJ Kittrell, C Tour, JM AF Jin, Zhong Lu, Wei O'Neill, Kevin J. Parilla, Philip A. Simpson, Lin J. Kittrell, Carter Tour, James M. TI Nano-Engineered Spacing in Graphene Sheets for Hydrogen Storage SO CHEMISTRY OF MATERIALS LA English DT Article ID METAL-ORGANIC FRAMEWORKS; ACTIVATED CARBONS; GRAPHITE; OXIDE C1 [Jin, Zhong; Lu, Wei; Kittrell, Carter; Tour, James M.] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Dept Chem & Mech Engn & Mat Sci, Houston, TX 77005 USA. [O'Neill, Kevin J.; Parilla, Philip A.; Simpson, Lin J.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Kittrell, C (reprint author), Rice Univ, Smalley Inst Nanoscale Sci & Technol, Dept Chem & Mech Engn & Mat Sci, MS-222,6100 Main St, Houston, TX 77005 USA. RI Lu, Wei /D-1751-2012; Jin, Zhong/D-1742-2012; OI Lu, Wei /0000-0003-4504-7083; Jin, Zhong/0000-0001-8860-8579; Tour, James/0000-0002-8479-9328 FU U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy within the Hydrogen Sorption Center of Excellence at the National Renewable Energy Laboratory [DEFC-36-05GO15073] FX Financial support was provided by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy within the Hydrogen Sorption Center of Excellence at the National Renewable Energy Laboratory, DEFC-36-05GO15073. NR 30 TC 37 Z9 37 U1 2 U2 39 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD FEB 22 PY 2011 VL 23 IS 4 BP 923 EP 925 DI 10.1021/cm1025188 PG 3 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 720DD UT WOS:000287259500001 ER PT J AU Itoh, Y Kim, B Gearba, RI Tremblay, NJ Pindak, R Matsuo, Y Nakamura, E Nuckolls, C AF Itoh, Yoshimitsu Kim, Bumjung Gearba, Raluca I. Tremblay, Noah J. Pindak, Ron Matsuo, Yutaka Nakamura, Eiichi Nuckolls, Colin TI Simple Formation of C-60 and C-60-Ferrocene Conjugated Monolayers Anchored onto Silicon Oxide with Five Carboxylic Acids and Their Transistor Applications SO CHEMISTRY OF MATERIALS LA English DT Article ID SELF-ASSEMBLED MONOLAYERS; FIELD-EFFECT TRANSISTORS; FULLERENE DERIVATIVES; PHOTOVOLTAIC CELLS; GOLD SURFACES; BUCKMINSTERFULLERENE; FABRICATION; MICROSCOPY; ELECTRODE; AU(111) AB C-60 and C-60-ferrocene conjugated molecule bearing five carboxylic acids successfully anchor onto a silicon oxide surface as a monolayer through a simple method of simply dipping an amino-terminated surface into the solution of the C-60 derivatives. The monolayer structure was characterized by UV-vis spectroscopy, X-ray reflectivity, X-ray photoelectron spectroscopy, and IR spectroscopy to reveal that the molecules are standing presenting its C-60 spherical face at the surface. The electronic effect of the C-60 monolayer and the ferrocene-functionalized C-60 monolayer in OFET devices was investigated. When an n-type OFET was fabricated on the ferrocene functionalized monolayer, we sec an enhancement in the mobility. When a p-type OFET was made the ferrocene-functionalized C-60 monolayer showed a lowering of the carrier mobility. C1 [Itoh, Yoshimitsu; Kim, Bumjung; Tremblay, Noah J.; Nuckolls, Colin] Columbia Univ, Dept Chem, New York, NY 10027 USA. [Itoh, Yoshimitsu; Kim, Bumjung; Tremblay, Noah J.; Nuckolls, Colin] Columbia Univ, Ctr Elect Transport Mol Nanostruct, New York, NY 10027 USA. [Gearba, Raluca I.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Pindak, Ron] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Matsuo, Yutaka; Nakamura, Eiichi] ERATO, Japan Sci & Technol Agcy, Nakamura Funct Carbon Cluster Project, Bunkyo Ku, Tokyo 1130033, Japan. [Itoh, Yoshimitsu; Matsuo, Yutaka; Nakamura, Eiichi] Univ Tokyo, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan. RP Itoh, Y (reprint author), Univ Tokyo, Dept Chem & Biotechnol, Bunkyo Ku, Tokyo 1138656, Japan. EM itoh@macro.t.u-tokyo.ac.jp RI Matsuo, Yutaka/C-9897-2011; Itoh, Yoshimitsu/G-8162-2012 OI Matsuo, Yutaka/0000-0001-9084-9670; Itoh, Yoshimitsu/0000-0002-8356-7605 FU Japan Society for the Promotion of Science (JSPS) [18.9971]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-98CH10886]; MEXT, Japan (KAKENHI) [22000008] FX We thank Dr. Alian Adnot in Universite Laval for XPS measurement. This work was generously supported by MEXT, Japan (KAKENHI to E.N., 22000008). Y.I. thanks the Japan Society for the Promotion of Science (JSPS) for a Research Fellow ship for Young Scientises (18.9971). Use of the National Synchrotron Light Source, Brookhaven National Laboratory, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. The authors would like to thank M. Fukuto and H. Zhou from National Synchrotron Light Source for fruitful discussions. NR 40 TC 16 Z9 16 U1 1 U2 14 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD FEB 22 PY 2011 VL 23 IS 4 BP 970 EP 975 DI 10.1021/cm1025975 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 720DD UT WOS:000287259500009 ER PT J AU Santulli, AC Feygenson, M Camino, FE Aronson, MC Wong, SS AF Santulli, Alexander C. Feygenson, Mikhail Camino, Fernando E. Aronson, M. C. Wong, Stanislaus S. TI Synthesis and Characterization of One-Dimensional Cr2O3 Nanostructures SO CHEMISTRY OF MATERIALS LA English DT Article ID III OXIDE POWDERS; CHROMIUM-OXIDE; MAGNETIC-PROPERTIES; METAL-OXIDES; THERMAL-DECOMPOSITION; MESOPOROUS SILICA; GROWTH-MECHANISM; EXCHANGE BIAS; NANOPARTICLES; GEL AB Herein, we report the synthesis of one-dimensional chromium oxide nanostructures, utilizing a modified sol-gel technique combined with a constrained template environment. Using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM), we noted that individual nanowires were cylindrical in nature and appeared to be composed of smaller, crystalline, constituent nanoparticles, sintered and aggregated together so as to form a discrete, polycrystalline structure. Spectroscopic and diffraction investigations of our nanostructures confirmed their chemical composition with little if any impurities. Moreover, we further investigated the properties of our nanomaterials using both electrical and magnetic characterization. Interestingly, the magnetic properties of our nanostructures are strongly modified as compared with the bulk, due to the emergence of a net magnetic moment induced by uncompensated surface spins. Catalysis data showed that these nanostructures were active toward the thermal decomposition of KClO4. C1 [Santulli, Alexander C.; Wong, Stanislaus S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Feygenson, Mikhail; Aronson, M. C.; Wong, Stanislaus S.] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. [Camino, Fernando E.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Aronson, M. C.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RP Wong, SS (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. EM sswong@notes.cc.sunysb.edu RI Feygenson, Mikhail /H-9972-2014 OI Feygenson, Mikhail /0000-0002-0316-3265 NR 61 TC 22 Z9 22 U1 1 U2 53 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD FEB 22 PY 2011 VL 23 IS 4 BP 1000 EP 1008 DI 10.1021/cm102930z PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 720DD UT WOS:000287259500013 ER PT J AU Chute, JA Hawker, CJ Rasmussen, KO Welch, PM AF Chute, J. A. Hawker, C. J. Rasmussen, K. O. Welch, P. M. TI The Janus Character of Heterogeneous Dendritic Nanoparticles SO MACROMOLECULES LA English DT Article ID COLLOIDAL PARTICLES; BIOMEDICAL APPLICATIONS; DRUG-DELIVERY; DENDRIMERS; MICELLES; WATER; INTERFACE; POLYMERS; SPHERES; FUNCTIONALIZATION AB We present a computational and theoretical study of dendrimer-based nanoparticles composed of two linear chain types attached to the terminal groups of a core dendrimer. The chains were coupled to the dendritic core in both topologically Janus and alternating configurations. We find that a straightforward extension of the well-known scaling theory for the size of star polymers due to Daoud and Cotton works well for these classes of molecules. This suggests that the chains preferentially stretch radially from the molecular center. As a result, we find that topological connectivity alone suffices to ensure the stability of a Janus configuration. Chemical mismatch that drives phase separation in melts of these chains does not dramatically affect Janus structures when they are topologically constrained and can only produce frustrated conformations in alternating assemblies in the molecular weight range studied herein. We also demonstrate that contrast variation scattering experiments are ideally suited to detecting the presence of Janus structures. Specifically, we propose a scalar metric based upon contrast variation scattering studies on a single class of nanoparticles that can capture the extent of their Janus nature. C1 [Rasmussen, K. O.; Welch, P. M.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Chute, J. A.; Hawker, C. J.] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA. [Chute, J. A.; Hawker, C. J.] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA. [Hawker, C. J.] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA. RP Welch, PM (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM PWelch@LANL.gov RI Rasmussen, Kim/B-5464-2009; Hawker, Craig/G-4971-2011; OI Rasmussen, Kim/0000-0002-4029-4723; Hawker, Craig/0000-0001-9951-851X; Welch, Paul/0000-0001-5614-2065 FU National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]; U.S. Department of Energy Office of Biological and Environmental Research [SCFY081004]; Los Alamos National Laboratory Institute for Multiscale Materials Studies; National Science Foundation [CHE-054031]; MRSEC [DMR-05204156] FX This work was carried out under the auspices of the National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory under Contract DE-AC52-06NA25396. Financial support was provided by the U.S. Department of Energy Office of Biological and Environmental Research under Proposal SCFY081004, the Los Alamos National Laboratory Institute for Multiscale Materials Studies, and the National Science Foundation (CHE-054031 and MRSEC Program DMR-05204156 (MRL-UCSB)). NR 64 TC 8 Z9 8 U1 2 U2 36 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD FEB 22 PY 2011 VL 44 IS 4 BP 1046 EP 1052 DI 10.1021/ma102087k PG 7 WC Polymer Science SC Polymer Science GA 721XM UT WOS:000287391100048 ER PT J AU Gofryk, K Vorontsov, AB Vekhter, I Sefat, AS Imai, T Bauer, ED Thompson, JD Ronning, F AF Gofryk, K. Vorontsov, A. B. Vekhter, I. Sefat, A. S. Imai, T. Bauer, E. D. Thompson, J. D. Ronning, F. TI Effect of annealing on the specific heat of Ba(Fe1-xCox)(2)As-2 SO PHYSICAL REVIEW B LA English DT Article ID SUPERCONDUCTIVITY; STATES; TEMPERATURE; VORTEX AB We report on the effect of annealing on the temperature and field dependencies of the low-temperature specific heat of the electron-doped Ba(Fe1-xCox)(2)As-2 for under- (x = 0.045), optimally (x = 0.08), and over-(x = 0.105 and 0.14) doped regimes. We observed that annealing significantly improves some superconducting characteristics in Ba(Fe1-xCox)(2)As-2. It considerably increases T-c, decreases gamma(0) in the superconducting state, and suppresses the Schottky-like contribution at very low temperatures. The improved sample quality allows for a better identification of the superconducting gap structure of these materials. We examine the effects of doping and annealing within a self-consistent framework for an extended s-wave pairing scenario. At optimal doping our data indicate that the sample is fully gapped, while for both under- and overdoped samples significant low-energy excitations remain, possibly consistent with a nodal structure. The difference of sample quality offers a natural explanation for the variation in low-temperature power laws observed by many techniques. C1 [Gofryk, K.; Thompson, J. D.; Ronning, F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Vorontsov, A. B.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. [Vekhter, I.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. [Sefat, A. S.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Imai, T.] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada. [Imai, T.] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada. RP Gofryk, K (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM gofryk@lanl.gov; fronning@lanl.gov RI Bauer, Eric/D-7212-2011; Vekhter, Ilya/M-1780-2013; Gofryk, Krzysztof/F-8755-2014; Sefat, Athena/R-5457-2016; OI Sefat, Athena/0000-0002-5596-3504; Gofryk, Krzysztof/0000-0002-8681-6857; Ronning, Filip/0000-0002-2679-7957; Bauer, Eric/0000-0003-0017-1937 FU US Department of Energy, Office of Science; Los Alamos LDRD program; Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy; DOE [DE-FG02-08ER46492]; NSF [DMR-0954342]; NSERC; CFI; CIFAR FX We gratefully acknowledge fruitful discussions with A. V. Balatsky, T. Park, and G. Stewart. Work at Los Alamos National Laboratory was performed under the auspices of the US Department of Energy, Office of Science and supported in part by the Los Alamos LDRD program. Research at ORNL is sponsored by the Materials Sciences and Engineering Division, Office of Basic Energy Sciences, US Department of Energy. A. S acknowledges discussions with M. A. McGuire, D. Mandrus, and B. C. Sales. I. V. acknowledges support from DOE Grant No. DE-FG02-08ER46492. A. B. V acknowledges support from NSF Grant No. DMR-0954342. The work at McMaster was supported by NSERC, CFI, and CIFAR. NR 51 TC 40 Z9 40 U1 0 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 22 PY 2011 VL 83 IS 6 AR 064513 DI 10.1103/PhysRevB.83.064513 PG 8 WC Physics, Condensed Matter SC Physics GA 724NV UT WOS:000287584400010 ER PT J AU Jensen, O Hagen, G Hjorth-Jensen, M Vaagen, JS AF Jensen, O. Hagen, G. Hjorth-Jensen, M. Vaagen, J. S. TI Closed-shell properties of O-24 with ab initio coupled-cluster theory SO PHYSICAL REVIEW C LA English DT Article ID SYSTEMS; STATES AB We present a microscopic calculation of spectroscopic factors for neutron and proton removal from O-24 using the coupled-cluster method and a state-of-the-art chiral nucleon-nucleon interaction at next-to-next-to-next-to-leading order. To account for the coupling to the scattering continuum we use a Berggren single-particle basis that treats bound, resonant, and continuum states on an equal footing. We report neutron removal spectroscopic factors for the O-23 states J(pi) = 1/2(+), 5/2(+), 3/2, and 1/2 and proton removal spectroscopic factors for the N-23 states 1/2(-) and 3/2(-). Our calculations support the accumulated experimental evidence that O-24 is a closed-shell nucleus. C1 [Jensen, O.; Vaagen, J. S.] Univ Bergen, Dept Phys & Technol, N-5007 Bergen, Norway. [Jensen, O.; Hjorth-Jensen, M.] Univ Oslo, Dept Phys, N-0316 Oslo, Norway. [Jensen, O.; Hjorth-Jensen, M.] Univ Oslo, Ctr Math Appl, N-0316 Oslo, Norway. [Hagen, G.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Hagen, G.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. RP Jensen, O (reprint author), Univ Bergen, Dept Phys & Technol, N-5007 Bergen, Norway. RI Hagen, Gaute/I-6146-2012 OI Hagen, Gaute/0000-0001-6019-1687 FU Office of Nuclear Physics, US Department of Energy (Oak Ridge National Laboratory); SciDAC UNEDF [DE-FC02-07ER41457]; Research Council of Norway [NFR 171247/V30] FX Discussions with Gustav R. Jansen are acknowledged. This work was supported by the Office of Nuclear Physics, US Department of Energy (Oak Ridge National Laboratory), and DE-FC02-07ER41457 (SciDAC UNEDF). This research used computational resources of the National Center for Computational Sciences and the Notur project in Norway. O.J. and M.H.J. acknowledge support from the Research Council of Norway (NFR 171247/V30). NR 33 TC 13 Z9 13 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD FEB 22 PY 2011 VL 83 IS 2 AR 021305 DI 10.1103/PhysRevC.83.021305 PG 5 WC Physics, Nuclear SC Physics GA 724OI UT WOS:000287585700001 ER PT J AU Song, HC Bass, SA Heinz, U AF Song, Huichao Bass, Steffen A. Heinz, Ulrich TI Viscous QCD matter in a hybrid hydrodynamic plus Boltzmann approach SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; EQUATION-OF-STATE; NUCLEUS-NUCLEUS COLLISIONS; QUANTUM MOLECULAR-DYNAMICS; HADRON-PRODUCTION; AU+AU COLLISIONS; TRANSPORT MODEL; ELLIPTIC FLOW; FREEZE-OUT AB A hybrid transport approach for the bulk evolution of viscous QCD matter produced in ultra-relativistic heavy-ion collisions is presented. The expansion of the dense deconfined phase of the reaction is modeled with viscous hydrodynamics, while the dilute late hadron gas stage is described microscopically by the Boltzmann equation. The advantages of such a hybrid approach lie in the improved capability of handling large dissipative corrections in the late dilute phase of the reaction, including a realistic treatment of the nonequilibrium hadronic chemistry and kinetic freeze-out. By varying the switching temperature at which the hydrodynamic output is converted to particles for further propagation with the Boltzmann cascade we test the ability of the macroscopic hydrodynamic approach to emulate the microscopic evolution during the hadronic stage and extract the temperature dependence of the effective shear viscosity of the hadron resonance gas produced in the collision. We find that the extracted values depend on the prior hydrodynamic history and hence do not represent fundamental transport properties of the hadron resonance gas. We conclude that viscous fluid dynamics does not provide a faithful description of hadron resonance gas dynamics with predictive power, and that both components of the hybrid approach are needed for a quantitative description of the fireball expansion and its freeze-out. C1 [Song, Huichao] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Song, Huichao; Heinz, Ulrich] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Bass, Steffen A.] Duke Univ, Dept Phys, Durham, NC 27708 USA. RP Song, HC (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM HSong@lbl.gov FU U.S. Department of Energy [DE-AC02-05CH11231, DE-FG02-05ER41367, DE-SC0004286, DE-SC0004104] FX We gratefully acknowledge fruitful discussions with V. Koch and T. Hirano, whom we also thank for providing the averaged initial density profiles for fluctuating CGC initial conditions. We thank P. Huovinen for sending us the EOS s95p-PCE before publication and T. Riley and C. Shen for providing a fit function [25] for this EOS and implementing it into VISH2 + 1. This work was supported by the U.S. Department of Energy under contracts DE-AC02-05CH11231, DE-FG02-05ER41367, DE-SC0004286, and (within the framework of the Jet Collaboration) DE-SC0004104. We gratefully acknowledge extensive computing resources provided to us by the Ohio Supercomputer Center. NR 78 TC 91 Z9 91 U1 1 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. 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M. Abbott, B. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Ancu, L. S. Aoki, M. Arnoud, Y. Arov, M. Askew, A. Asman, B. Atramentov, O. Avila, C. BackusMayes, J. Badaud, F. Bagby, L. Baldin, B. Bandurin, D. V. Banerjee, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bazterra, V. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Bolton, T. A. Boos, E. E. Borissov, G. Bose, T. Brandt, A. Brandt, O. Brock, R. Brooijmans, G. Bross, A. Brown, D. Brown, J. Bu, X. B. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burnett, T. H. Buszello, C. P. Calpas, B. Camacho-Perez, E. Carrasco-Lizarraga, M. A. Casey, B. C. K. Castilla-Valdez, H. Caughron, S. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chandra, A. Chen, G. Chevalier-Thery, S. Cho, D. K. Cho, S. W. Choi, S. Choudhary, B. Christoudias, T. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Croc, A. Cutts, D. Cwiok, M. Das, A. Davies, G. De, K. de Jong, S. J. De La Cruz-Burelo, E. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. DeVaughan, K. Diehl, H. T. Diesburg, M. Dominguez, A. Dorland, T. Dubey, A. Dudko, L. V. Duggan, D. Duperrin, A. Dutt, S. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Evans, H. Evdokimov, A. Evdokimov, V. N. Facini, G. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Fortner, M. Fox, H. Fuess, S. Gadfort, T. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geist, W. Geng, W. Gerbaudo, D. Gerber, C. E. Gershtein, Y. Ginther, G. Golovanov, G. Goussiou, A. Grannis, P. D. Greder, S. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guo, F. 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Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Royon, C. Rubinov, P. Ruchti, R. Safronov, G. Sajot, G. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, P. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Sopczak, A. Sosebee, M. Soustruznik, K. Spurlock, B. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, M. Strom, D. Stutte, L. Suter, L. Svoisky, P. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsai, Y. -T. Tsybychev, D. Tuchming, B. Tully, C. Tuts, P. M. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vint, P. Vokac, P. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wimpenny, S. J. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Search for Single Vectorlike Quarks in p(p)over-bar Collisions at root s=1.96 TeV SO PHYSICAL REVIEW LETTERS LA English DT Article AB We present a search for hypothetical vectorlike quarks in p (p) over bar collisions at root s = 1.96 TeV. The data were collected by the D0 detector at the Fermilab Tevatron Collider and correspond to an integrated luminosity of 5.4 fb(-1). We select events with a final state composed of a W or Z boson and a jet consistent with a heavy object decay. 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A.] Inst High Energy Phys, Protvino, Russia. [Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Asman, B.; Belanger-Champagne, C.; Buszello, C. P.] Stockholm Univ, S-10691 Stockholm, Sweden. [Asman, B.; Belanger-Champagne, C.] Uppsala Univ, Uppsala, Sweden. [Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Love, P.; Ratoff, P. N.; Sopczak, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England. [Beuselinck, R.; Christoudias, T.; Davies, G.; Hays, J.; Jesik, R.; Jonsson, P.; Osman, N.; Scanlon, T.; Vint, P.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Harder, K.; Head, T.; Owen, M.; Peters, K.; Peters, Y.; Rich, P.; Schwanenberger, C.; Soeldner-Rembold, S.; Suter, L.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA. [Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.; Wimpenny, S. J.] Univ Calif Riverside, Riverside, CA 92521 USA. [Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Bu, X. B.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Juste, A.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Ye, Z.; Yin, H.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Adams, M.; Bazterra, V.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA. [Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA. [Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA. [Baringer, P.; Bean, A.; Carrasco-Lizarraga, M. A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T. A.; Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA. [Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Hesketh, G.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA. [Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Caughron, S.; Haas, A.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. D.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, P.; Hossain, S.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Sosebee, M.; Spurlock, B.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. RI De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Alves, Gilvan/C-4007-2013; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias, Theodoros/E-7305-2015; Gerbaudo, Davide/J-4536-2012; Li, Liang/O-1107-2015; Mercadante, Pedro/K-1918-2012; Yip, Kin/D-6860-2013; Wimpenny, Stephen/K-8848-2013; Gutierrez, Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; bu, xuebing/D-1121-2012; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; Fisher, Wade/N-4491-2013 OI De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Christoudias, Theodoros/0000-0001-9050-3880; Gerbaudo, Davide/0000-0002-4463-0878; Li, Liang/0000-0001-6411-6107; Yip, Kin/0000-0002-8576-4311; Wimpenny, Stephen/0000-0003-0505-4908; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; FU DOE; NSF (USA); CEA; CNRS/IN2P3 (France); FASI; Rosatom; RFBR (Russia); CNPq; FAPERJ; FAPESP; FUNDUNESP (Brazil); DAE; DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF; KOSEF (Korea); CONICET; UBACyT (Argentina); FOM (The Netherlands); STFC; Royal Society (United Kingdom); MSMT; GACR (Czech Republic); CRC; NSERC (Canada); BMBF; DFG (Germany); SFI (Ireland); Swedish Research Council (Sweden); CAS; CNSF (China) FX We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). We additionally thank Marcela Carena and Anupama Atre of the Fermi National Accelerator Laboratory for providing the MADGRAPH implementation of the vectorlike quarks model. NR 24 TC 14 Z9 14 U1 0 U2 7 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 FEB 22 PY 2011 VL 106 IS 8 AR 081801 DI 10.1103/PhysRevLett.106.081801 PG 7 WC Physics, Multidisciplinary SC Physics GA 724PE UT WOS:000287587900006 PM 21405565 ER PT J AU Stockel, J Jacobs, JM Elvitigala, TR Liberton, M Welsh, EA Polpitiya, AD Gritsenko, MA Nicora, CD Koppenaal, DW Smith, RD Pakrasi, HB AF Stoeckel, Jana Jacobs, Jon M. Elvitigala, Thanura R. Liberton, Michelle Welsh, Eric A. Polpitiya, Ashoka D. Gritsenko, Marina A. Nicora, Carrie D. Koppenaal, David W. Smith, Richard D. Pakrasi, Himadri B. TI Diurnal Rhythms Result in Significant Changes in the Cellular Protein Complement in the Cyanobacterium Cyanothece 51142 SO PLOS ONE LA English DT Article ID LIGHT-INDUCIBLE POLYPEPTIDES; SP PCC 6803; DIAZOTROPHIC CYANOBACTERIUM; SYNECHOCYSTIS PCC6803; PROTEOMIC ANALYSIS; NITROGEN-FIXATION; MASS-SPECTROMETRY; OXYGEN EVOLUTION; PHOTOSYSTEM-I; METABOLISM AB Cyanothece sp. ATCC 51142 is a diazotrophic cyanobacterium notable for its ability to perform oxygenic photosynthesis and dinitrogen fixation in the same single cell. Previous transcriptional analysis revealed that the existence of these incompatible cellular processes largely depends on tightly synchronized expression programs involving similar to 30% of genes in the genome. To expand upon current knowledge, we have utilized sensitive proteomic approaches to examine the impact of diurnal rhythms on the protein complement in Cyanothece 51142. We found that 250 proteins accounting for similar to 5% of the predicted ORFs from the Cyanothece 51142 genome and 20% of proteins detected under alternating light/dark conditions exhibited periodic oscillations in their abundances. Our results suggest that altered enzyme activities at different phases during the diurnal cycle can be attributed to changes in the abundance of related proteins and key compounds. The integration of global proteomics and transcriptomic data further revealed that post-transcriptional events are important for temporal regulation of processes such as photosynthesis in Cyanothece 51142. This analysis is the first comprehensive report on global quantitative proteomics in a unicellular diazotrophic cyanobacterium and uncovers novel findings about diurnal rhythms. C1 [Stoeckel, Jana; Elvitigala, Thanura R.; Liberton, Michelle; Welsh, Eric A.; Pakrasi, Himadri B.] Washington Univ, Dept Biol, St Louis, MO 63130 USA. [Jacobs, Jon M.; Gritsenko, Marina A.; Nicora, Carrie D.; Koppenaal, David W.; Smith, Richard D.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Polpitiya, Ashoka D.] Ctr Prote Translat Genom Res Inst, Phoenix, AZ USA. RP Stockel, J (reprint author), Washington Univ, Dept Biol, Campus Box 1137, St Louis, MO 63130 USA. EM pakrasi@wustl.edu RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 FU US Department of Energy (DOE) [DE-AC05-76RL01830]; U.S. Department of Energy FX This project was funded by he US Department of Energy (DOE, # DE-AC05-76RL01830). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; We thank all members of the Pakrasi Lab for collegial discussions. This work is part of a Membrane Biology Scientific Grand Challenge project at the W. R. Wiley Environmental Molecular Science Laboratory, a national scientific user facility sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research program (Pacific Northwest National Laboratory). NR 43 TC 28 Z9 29 U1 0 U2 16 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD FEB 22 PY 2011 VL 6 IS 2 AR e16680 DI 10.1371/journal.pone.0016680 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 725PA UT WOS:000287656600012 PM 21364985 ER PT J AU Boyce, M Carrico, IS Ganguli, AS Yu, SH Hangauer, MJ Hubbard, SC Kohler, JJ Bertozzi, CR AF Boyce, Michael Carrico, Isaac S. Ganguli, Anjali S. Yu, Seok-Ho Hangauer, Matthew J. Hubbard, Sarah C. Kohler, Jennifer J. Bertozzi, Carolyn R. TI Metabolic cross-talk allows labeling of O-linked beta-N-acetylglucosamine-modified proteins via the N-acetylgalactosamine salvage pathway SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article ID GLCNAC TRANSFERASE; UDP-GLCNAC; IN-VIVO; CYTOSOLIC PROTEINS; MOLECULAR-CLONING; DEFICIENT MUTANT; GLYCOSYLATION; NUCLEAR; PHOSPHORYLATION; EXPRESSION AB Hundreds of mammalian nuclear and cytoplasmic proteins are reversibly glycosylated by O-linked beta-N-acetylglucosamine (O-GlcNAc) to regulate their function, localization, and stability. Despite its broad functional significance, the dynamic and posttranslational nature of O-GlcNAc signaling makes it challenging to study using traditional molecular and cell biological techniques alone. Here, we report that metabolic cross-talk between the N-acetylgalactosamine salvage and O-GlcNAcylation pathways can be exploited for the tagging and identification of O-GlcNAcylated proteins. We found that N-azidoacetylgalactosamine (GalNAz) is converted by endogenous mammalian biosynthetic enzymes to UDP-GalNAz and then epimerized to UDP-N-azidoacetylglucosamine (GlcNAz). O-GlcNAc transferase accepts UDP-GlcNAz as a nucleotide-sugar donor, appending an azidosugar onto its native substrates, which can then be detected by covalent labeling using azide-reactive chemical probes. In a proof-of-principle proteomics experiment, we used metabolic GalNAz labeling of human cells and a bioorthogonal chemical probe to affinity-purify and identify numerous O-GlcNAcylated proteins. Our work provides a blueprint for a wide variety of future chemical approaches to identify, visualize, and characterize dynamic O-GlcNAc signaling. C1 [Boyce, Michael; Carrico, Isaac S.; Ganguli, Anjali S.; Hangauer, Matthew J.; Hubbard, Sarah C.; Bertozzi, Carolyn R.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Bertozzi, Carolyn R.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Bertozzi, Carolyn R.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Bertozzi, Carolyn R.] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Div Mat Sci, Berkeley, CA 94720 USA. [Carrico, Isaac S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Yu, Seok-Ho; Kohler, Jennifer J.] Univ Texas SW Med Ctr Dallas, Div Translat Res, Dept Internal Med, Dallas, TX 75390 USA. [Hangauer, Matthew J.] Univ Calif San Francisco, Dept Microbiol & Immunol, San Francisco, CA 94143 USA. RP Bertozzi, CR (reprint author), Univ Calif Berkeley, Dept Chem, B84 Hildebrand Hall 1460, Berkeley, CA 94720 USA. EM crb@berkeley.edu RI Kohler, Jennifer/B-6589-2009 OI Kohler, Jennifer/0000-0001-5373-3329 FU National Institutes of Health [GM066047, GM069157]; Department of Defense [PC080659]; Life Sciences Research Foundation; National Defense Science and Engineering; Welch Foundation [I-1686] FX We thank R. Schekman (University of California, Berkeley, CA) for anti-Sec24C antibody, M. Breidenbach (University of California, Berkeley, CA), M. Macauley and D. Vocadlo (Simon Fraser University), and B. Gross and S. Walker (Harvard Medical School) for cDNAs and expression constructs, L. Kohlstaedt and the Proteomics/Mass Spectrometry Laboratory for proteomics analysis, and M. Breidenbach, K. Dehnert, Z. Gartner, P. Gip, T. Mosley, J. Prescher, J. Seeliger, S. Siegrist, E. Sletten, P. Wu, and members of the Bertozzi lab (University of California, Berkeley, CA) for reagents and helpful advice. This research was supported by National Institutes of Health Grant GM066047 and the Department of Defense Grant PC080659 (to C.R.B.), a Howard Hughes Medical Institute fellowship of the Life Sciences Research Foundation (to M. B.), National Institutes of Health Postdoctoral Fellowship GM069157 (to I.S.C.), a National Defense Science and Engineering Graduate fellowship (to M.J.H.), and Welch Foundation Grant I-1686 (to J.K.K.). J.J.K. is an Alfred P. Sloan Research Fellow. NR 43 TC 98 Z9 99 U1 5 U2 37 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD FEB 22 PY 2011 VL 108 IS 8 BP 3141 EP 3146 DI 10.1073/pnas.1010045108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 724ML UT WOS:000287580400017 PM 21300897 ER PT J AU Chanson, L Brownfield, D Garbe, JC Kuhn, I Stampfer, MR Bissell, MJ LaBarge, MA AF Chanson, Lea Brownfield, Douglas Garbe, James C. Kuhn, Irene Stampfer, Martha R. Bissell, Mina J. LaBarge, Mark A. TI Self-organization is a dynamic and lineage-intrinsic property of mammary epithelial cells SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE mammary gland; tissue biology ID E-CADHERIN EXPRESSION; TISSUE RECONSTRUCTION; DISSOCIATED CELLS; BRANCHING MORPHOGENESIS; INTERCELLULAR-ADHESION; BREAST CARCINOMAS; MECHANISM; DIFFERENTIATION; RHO; INHIBITORS AB Loss of organization is a principle feature of cancers; therefore it is important to understand how normal adult multilineage tissues, such as bilayered secretory epithelia, establish and maintain their architectures. The self-organization process that drives heterogeneous mixtures of cells to form organized tissues is well studied in embryology and with mammalian cell lines that were abnormal or engineered. Here we used a micropatterning approach that confined cells to a cylindrical geometry combined with an algorithm to quantify changes of cellular distribution over time to measure the ability of different cell types to self-organize relative to each other. Using normal human mammary epithelial cells enriched into pools of the two principal lineages, luminal and myoepithelial cells, we demonstrated that bilayered organization in mammary epithelium was driven mainly by lineage-specific differential E-cadherin expression, but that P-cadherin contributed specifically to organization of the myoepithelial layer. Disruption of the actomyosin network or of adherens junction proteins resulted in either prevention of bilayer formation or loss of preformed bilayers, consistent with continual sampling of the local microenvironment by cadherins. Together these data show that self-organization is an innate and reversible property of communities of normal adult human mammary epithelial cells. C1 [Brownfield, Douglas; Garbe, James C.; Kuhn, Irene; Stampfer, Martha R.; Bissell, Mina J.; LaBarge, Mark A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Chanson, Lea] Ecole Polytech Fed Lausanne, Inst Bioengn, CH-1015 Lausanne, Switzerland. [Brownfield, Douglas] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. RP Bissell, MJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. EM mjbissell@lbl.gov; MALabarge@lbl.gov RI LaBarge, Mark/E-2621-2013; Kuhn, Irene/F-5413-2012 FU National Institute on Aging [R00AG033176]; Lawrence Berkeley National Laboratory; Office of Science, of the US Department of Energy [AC02-05CH11231]; US Department of Energy, Office of Biological and Environmental Research [DE-AC02-05CH1123]; National Cancer Institute [R37CA064786, U54CA126552, R01CA057621, U54CA112970, U54CA143836, U01CA143233]; US Department of Defense [U54CA112970, W81XWH0810736, BCRP BC060444] FX We thank Drs. Matthias Lutolf and Celeste M. Nelson for insightful discussions, Celeste M. Nelson. for providing micropatterned wafers, and Dr. Daniel Fletcher for use of his atomic force microscope. M.A.L is supported by Grant R00AG033176 from the National Institute on Aging, Grant U54CA112970 from the National Cancer Institute, and by Laboratory Directed Research and Development (LDRD) funding from the Lawrence Berkeley National Laboratory, provided by the Director, Office of Science, of the US Department of Energy under Contract DE-AC02-05CH11231. M.J.B. is supported by grants from the US Department of Energy, Office of Biological and Environmental Research, a Distinguished Fellow Award, Low Dose Radiation Program contract DE-AC02-05CH1123; National Cancer Institute Grants R37CA064786, U54CA126552, R01CA057621, U54CA112970, U54CA143836, and U01CA143233; and by US Department of Defense Grant W81XWH0810736. M.R.S. and J.C.G. are supported by US Department of Defense Grants BCRP BC060444 and U54CA112970. NR 31 TC 24 Z9 24 U1 1 U2 12 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD FEB 22 PY 2011 VL 108 IS 8 BP 3264 EP 3269 DI 10.1073/pnas.1019556108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 724ML UT WOS:000287580400038 PM 21300877 ER PT J AU Jang, DJ Vorontsov, AB Vekhter, I Gofryk, K Yang, Z Ju, S Hong, JB Han, JH Kwon, YS Ronning, F Thompson, JD Park, T AF Jang, Dong-Jin Vorontsov, A. B. Vekhter, I. Gofryk, K. Yang, Z. Ju, S. Hong, J. B. Han, J. H. Kwon, Y. S. Ronning, F. Thompson, J. D. Park, T. TI Calorimetric evidence for nodes in the overdoped Ba(Fe0.9Co0.1)(2)As-2 SO NEW JOURNAL OF PHYSICS LA English DT Article ID SUPERCONDUCTORS; STATES; DEPENDENCE; DENSITY; SPIN AB We present low-temperature specific heat of the electron-doped Ba(Fe0.9Co0.1)(2)As-2, which does not show any indication of an upturn down to 400 mK, the lowest measuring temperature. The lack of a Schottky-like feature at low temperatures or in magnetic fields up to 9 T enables us to identify enhanced low-temperature quasiparticle excitations and to study anisotropy in the linear term of the specific heat. Our results cannot be explained by a single or multiple isotropic superconducting gap, but are consistent with multi-gap superconductivity with nodes on at least one Fermi surface sheet. C1 [Gofryk, K.; Ronning, F.; Thompson, J. D.; Park, T.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Jang, Dong-Jin; Yang, Z.; Ju, S.; Hong, J. B.; Han, J. H.; Kwon, Y. S.; Park, T.] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea. [Vorontsov, A. B.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA. [Vekhter, I.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. RP Thompson, JD (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM jdt@lanl.gov; tp8701@skku.edu RI Park, Tuson/A-1520-2012; Vekhter, Ilya/M-1780-2013; Gofryk, Krzysztof/F-8755-2014; Jang, Dongjin/A-8148-2016; OI Jang, Dongjin/0000-0003-3875-7802; Gofryk, Krzysztof/0000-0002-8681-6857; Ronning, Filip/0000-0002-2679-7957 FU Korean government (MEST) [2010-0016560]; US Department of Energy/Office of Science; Los Alamos LDRD program; Sungkyunkwan University; US DOE [DE-FG02-08ER46492]; US NSF [DMR-0954342]; Basic Science Research Program [2010-0007487]; Nuclear R and D Programs [2006-2002165, 2009-0078025] FX This work was supported by the National Research Foundation (NRF) grant (2010-0016560) funded by the Korean government (MEST). Work at Los Alamos was performed under the auspices of the US Department of Energy/Office of Science and supported in part by the Los Alamos LDRD program. ZY and TP acknowledge support from the promotion program for new faculty, Sungkyunkwan University (2009). IV is supported in part by the US DOE through grant no. DE-FG02-08ER46492. ABV is supported in part by the US NSF grant no. DMR-0954342. YSK is supported by the Basic Science Research Program (2010-0007487) and Nuclear R and D Programs (2006-2002165 and 2009-0078025). NR 46 TC 17 Z9 17 U1 0 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1367-2630 J9 NEW J PHYS JI New J. Phys. PD FEB 21 PY 2011 VL 13 AR 023036 DI 10.1088/1367-2630/13/2/023036 PG 9 WC Physics, Multidisciplinary SC Physics GA 728DM UT WOS:000287854400004 ER PT J AU Krennrich, F Bautista, M Beilicke, M Benbow, W Boltuch, D Bradbury, SM Cesarini, A Ciupik, L Duke, C Finley, JP Finnegan, G Fortson, L Gall, D Guenette, R Gyuk, G Hanna, D Hui, CM Humensky, TB Kaaret, P Karlsson, N Maier, G McCutcheon, M Ong, RA Pandel, D Perkins, JS Pohl, M Quinn, J Ragan, K Roache, E Rose, HJ Schroedter, M Sembroski, GH Smith, AW Steele, D Swordy, SP Wagner, RG Wakely, SP Weinstein, A Weisgarber, T Wissel, S AF Krennrich, F. Bautista, M. Beilicke, M. Benbow, W. Boltuch, D. Bradbury, S. M. Cesarini, A. Ciupik, L. Duke, C. Finley, J. P. Finnegan, G. Fortson, L. Gall, D. Guenette, R. Gyuk, G. Hanna, D. Hui, C. M. Humensky, T. B. Kaaret, P. Karlsson, N. Maier, G. McCutcheon, M. Ong, R. A. Pandel, D. Perkins, J. S. Pohl, M. Quinn, J. Ragan, K. Roache, E. Rose, H. J. Schroedter, M. Sembroski, G. H. Smith, A. W. Steele, D. Swordy, S. P. Wagner, R. G. Wakely, S. P. Weinstein, A. Weisgarber, T. Wissel, S. TI Results from the first two years of VERITAS observations SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 2nd Roma International Conference on Astro-particle Physics CY MAY 13-15, 2009 CL Rome, ITALY DE Gamma rays; Observations ID EXTRAGALACTIC BACKGROUND LIGHT; HIGH-ENERGY EMISSION; BL LACERTAE OBJECTS; GAMMA-RAY EMISSION; REMNANT IC 443; HESS J0632+057; CASSIOPEIA-A; RADIATION; TELESCOPE; BLAZARS AB The VERITAS observatory is an imaging atmospheric Cherenkov telescope array located in southern Arizona and covers an energy range between 100 GeV and 30 TeV. The VERITAS collaboration pursues a rigorous observing program that targets a range of key science objectives in astrophysics and particle physics; the understanding of the origin of cosmic rays, the search for supersymmetric dark matter self-annihilation, illuminating the connection between black holes and relativistic jets and constraints to the cosmological diffuse infrared background. We provide a summary of results from the first two years of observations with the full 4-telecope array reported at RICAP09. (C) 2010 Elsevier B.V. All rights reserved. C1 [Krennrich, F.; Pohl, M.; Schroedter, M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Bautista, M.; Guenette, R.; Hanna, D.; Maier, G.; McCutcheon, M.; Ragan, K.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Beilicke, M.; Boltuch, D.] Washington Univ, Dept Phys, St Louis, MO 63130 USA. [Benbow, W.; Perkins, J. S.; Roache, E.] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA. [Bradbury, S. M.; Rose, H. J.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England. [Cesarini, A.] Natl Univ Ireland, Sch Phys, Galway, Ireland. [Ciupik, L.; Fortson, L.; Gyuk, G.; Karlsson, N.; Steele, D.] Adler Planetarium & Astron Museum, Dept Astron, Chicago, IL 60605 USA. [Duke, C.] Grinnell Coll, Dept Phys, Grinnell, IA 50112 USA. [Finley, J. P.; Gall, D.; Sembroski, G. H.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. [Finnegan, G.; Hui, C. M.] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA. [Humensky, T. B.; Swordy, S. P.; Wakely, S. P.; Weisgarber, T.; Wissel, S.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Kaaret, P.; Pandel, D.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA. [Ong, R. A.; Weinstein, A.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Quinn, J.] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland. [Smith, A. W.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Krennrich, F (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. EM krennrich@iastate.edu OI Cesarini, Andrea/0000-0002-8611-8610; Pandel, Dirk/0000-0003-2085-5586 NR 33 TC 2 Z9 2 U1 0 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD FEB 21 PY 2011 VL 630 IS 1 BP 16 EP 21 DI 10.1016/j.nima.2010.06.019 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 727EQ UT WOS:000287780800005 ER PT J AU Giebink, NC Wiederrecht, GP Wasielewski, MR AF Giebink, Noel C. Wiederrecht, Gary P. Wasielewski, Michael R. TI Strong exciton-photon coupling with colloidal quantum dots in a high-Q bilayer microcavity SO APPLIED PHYSICS LETTERS LA English DT Article ID ORGANIC SEMICONDUCTOR MICROCAVITIES; OPTICAL MICROCAVITIES; NANOCRYSTALS; BIEXCITONS; DEVICES; FILMS AB We demonstrate evanescently coupled bilayer microcavities with Q-factors exceeding 250 fabricated by a simple spin-coating process. The cavity architecture consists of a slab waveguide lying upon a low refractive index spacer layer supported by a glass substrate. For a lossless guide layer, the cavity Q depends only on the thickness of the low index spacer and in principle can reach arbitrarily high values. We demonstrate the versatility of this approach by constructing cavities with a guide layer incorporating CdSe/ZnS core/shell quantum dots, where we observe strong coupling and hybridization between the 1S(e)-1S(3/2)(h) and 1S(e)-2S(3/2)(h) exciton states mediated by the cavity photon. This technique greatly simplifies the fabrication of high-Q planar microcavities for organic and inorganic quantum dot thin films and opens up new opportunities for the study of nonlinear optical phenomena in these materials. (C) 2011 American Institute of Physics. [doi:10.1063/1.3558731] C1 [Giebink, Noel C.; Wiederrecht, Gary P.; Wasielewski, Michael R.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Giebink, Noel C.; Wiederrecht, Gary P.; Wasielewski, Michael R.] Northwestern Univ, Argonne NW Solar Energy Res Ctr ANSER, Evanston, IL 60208 USA. [Wasielewski, Michael R.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. RP Giebink, NC (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM ngiebink@anl.gov FU Department of Energy, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Argonne-Northwestern Solar Energy Research (ANSER) Center [DE-SC0001059] FX Use of the Center for Nanoscale Materials was supported by the Department of Energy, Office of Basic Energy Sciences through Contract No. DE-AC02-06CH11357. This work was partially supported by the Argonne-Northwestern Solar Energy Research (ANSER) Center (Award No. DE-SC0001059). NR 31 TC 11 Z9 11 U1 3 U2 23 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 21 PY 2011 VL 98 IS 8 AR 081103 DI 10.1063/1.3558731 PG 3 WC Physics, Applied SC Physics GA 726YT UT WOS:000287764300003 ER PT J AU Liu, YP Chen, BY Xu, N Zhuang, PF AF Liu, Yunpeng Chen, Baoyi Xu, Nu Zhuang, Pengfei TI Y production as a probe for early state dynamics in high energy nuclear collisions at RHIC SO PHYSICS LETTERS B LA English DT Article DE Relativistic heavy-ion collisions; Quark-gluon plasma; Heavy flavor ID TRANSVERSE-MOMENTUM DISTRIBUTION; SHORT-DISTANCE ANALYSIS; HEAVY-ION COLLISIONS; J/PSI SUPPRESSION; QUARK SYSTEMS; ELLIPTIC FLOW; PB-PB; SPS; DEPENDENCE; TRANSPORT AB Y production in heavy ion collisions at RHIC energy is investigated. While the transverse momentum spectra of the ground state Y(1s) are controlled by the initial state Cronin effect, the excited b (b) over bar states are characterized by the competition between the cold and hot nuclear matter effects and sensitive to the dissociation temperatures determined by the heavy quark potential. We emphasize that it is necessary to measure the excited heavy quark states in order to extract the early stage information in high energy nuclear collisions at RHIC. (C) 2011 Elsevier B.V. All rights reserved. C1 [Liu, Yunpeng; Chen, Baoyi; Zhuang, Pengfei] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. [Xu, Nu] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Liu, YP (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. EM liuyp06@mails.tsinghua.edu.cn FU NSFC [10735040, 10847001, 10975084, 11079024]; U.S. Department of Energy [DE-AC03-76SF00098] FX The work is supported by the NSFC grant Nos. 10735040, 10847001, 10975084 and 11079024, and the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. NR 37 TC 22 Z9 23 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD FEB 21 PY 2011 VL 697 IS 1 BP 32 EP 36 DI 10.1016/j.physletb.2011.01.026 PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 727IC UT WOS:000287790800007 ER PT J AU Chondroudi, M Peter, SC Malliakas, CD Balasubramanian, M Li, QA Kanatzidis, MG AF Chondroudi, Maria Peter, Sebastian C. Malliakas, Christos D. Balasubramanian, Mali Li, Qing'An Kanatzidis, Mercouri G. TI Yb3AuGe2In3: An Ordered Variant of the YbAuIn Structure Exhibiting Mixed-Valent Yb Behavior SO INORGANIC CHEMISTRY LA English DT Article ID X-RAY-ABSORPTION; MAGNETIC-PROPERTIES; INTERMETALLIC COMPOUNDS; INTERMEDIATE-VALENCE; LIQUID INDIUM; EXPLORATORY SYNTHESIS; NEUTRON-DIFFRACTION; CRYSTAL-STRUCTURE; PHASE-TRANSITION; ELECTRONIC-STRUCTURE AB Yb3AuGe2In3 was obtained as large single crystals in high yield from reactions run in liquid indium. Single crystal X-ray diffraction data show that Yb3AuGe2In3 is an ordered variant of YbAuIn with lattice constants, a = b = 7.3153(8) angstrom and c = 4.4210(5) angstrom, and space group P (6) over bar 2m. The parent compound YbAuIn was also studied for comparison. YbAuIn crystallizes in the ZrNiAl structure type, hexagonal, P (6) over bar 2m space group with lattice parameters a = b = 7.7127(11) angstrom and c = 4.0294(8) angstrom. In Yb3AuGe2In3, Ge substitutes for one of the two Au positions in the ternary compound Yb3Au3In3. The structure can be described as alternating [Ge2In3] and [Yb3Au] slabs that stack along the c-axis. The magnetic susceptibility data follow a modified Curie-Weiss law. The effective magnetic moment mu(eff) of 0.52 mu(B)/Yb atom was deduced from the Curie constant and Curie-Weiss constant of theta(p) = -1.5 K indicating antiferromagnetic interactions in Yb3AuGe2In3. X-ray absorption near edge spectroscopy (XANES) measurements indicate intermediate valency for Yb in both compounds. The metallic nature of both compounds was confirmed by the resistivity measurements. Specific heat data for Yb3AuGe2In3 and YbAuIn give an electronic gamma term of 31 and 84 mJ/mol.K-2, respectively, suggesting that the ternary analog is a "light" heavy fermion compound. C1 [Chondroudi, Maria; Li, Qing'An; Kanatzidis, Mercouri G.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Balasubramanian, Mali] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Chondroudi, Maria] Michigan State Univ, Dept Chem, E Lansing, MI 48824 USA. [Peter, Sebastian C.; Malliakas, Christos D.; Kanatzidis, Mercouri G.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. RP Kanatzidis, MG (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM m-kanatzidis@northwestern.edu RI Peter, Sebastian/A-2666-2013; Li, Qingan/L-3778-2013 FU UChicago Argonne, LLC; U.S. Department of Energy Office of Science Laboratory [DE-AC02-06CH-11357]; U.S. DOE; Department of Energy [DE-FG02-07E-R46356] FX This work was supported by UChicago Argonne, LLC, Operator of Argonne National Laboratory. Argonne, a U.S. Department of Energy Office of Science Laboratory, operated under Contract DE-AC02-06CH-11357. PNC/XOR facilities and research at these facilities are supported by the U.S. DOE and its founding. We thank Dr. Igor Aronson for his help in developing and analyzing the Formulas 1 and 2 and Dr. Iliya Todorov for his help in the synthesis of YbAuIn, both from the Material Science Division at ANL. Financial support from the Department of Energy (Grant DE-FG02-07E-R46356) is gratefully acknowledged. NR 95 TC 34 Z9 34 U1 0 U2 11 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD FEB 21 PY 2011 VL 50 IS 4 BP 1184 EP 1193 DI 10.1021/ic100975x PG 10 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 719BY UT WOS:000287175600007 PM 21247072 ER PT J AU Casely, IJ Ziller, JW Mincher, BJ Evans, WJ AF Casely, Ian J. Ziller, Joseph W. Mincher, Bruce J. Evans, William J. TI Bismuth Coordination Chemistry with Allyl, Alkoxide, Aryloxide, and Tetraphenylborate Ligands and the {[2,6-(Me2NCH2)(2)C6H3](2)Bi}(+) Cation SO INORGANIC CHEMISTRY LA English DT Article ID RAY CRYSTAL-STRUCTURE; DOT-O INTERACTIONS; STRUCTURAL-CHARACTERIZATION; OXIDATIVE-ADDITION; PINCER COMPLEXES; HYDROGEN-BOND; REACTIVITY; DERIVATIVES; HALIDES; CHALCOGENIDES AB A series of bis(aryl) bismuth compounds containing (N,C,N)-pincer ligands, [2,6-(Me2NCH2)(2)C6H3](-) (Ar'), have been synthesized and structurally characterized to compare the coordination chemistry of Bi3+ with similarly sized lanthanide ions, Ln(3+). Treatment of Ar-2'BiCl, 1, with ClMg(CH2CH=CH2) affords the allyl complex Ar-2'Bi(eta(1)-CH2CH=CH2), 2, in which only one allyl carbon atom coordinates to bismuth. Complex 1 reacts with (KOBu)-Bu-t and KOC6H3Me2-2,6 to yield the alkoxide Ar-2'Bi((OBu)-Bu-t), 3, and aryloxide Ar-2'Bi(OC6H3Me2-2,6), 4, respectively, but the analogous reaction with the larger (KOC6H3Bu2)-Bu-t-2,6 forms [Ar-2'Bi][(OC6H3Bu2)-Bu-t-2,6], 6, in which the aryloxide ligand acts as an outer sphere anion. Chloride is removed from 1 by NaBPh4 to form [Ar-2'Bi][BPh4], 5, which crystallizes from THF in an unsolvated form with tetraphenylborate as an outer sphere counteranion. C1 [Casely, Ian J.; Ziller, Joseph W.; Evans, William J.] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA. [Mincher, Bruce J.] Idaho Natl Lab, Aqueous Separat & Radiochem Dept, Idaho Falls, ID 83415 USA. RP Evans, WJ (reprint author), Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA. RI Mincher, Bruce/C-7758-2017 FU Idaho National Laboratory; Chemical Sciences, Geosciences, and Biosciences Division of the Office of Basic Energy Sciences of the Department of Energy FX For support, we thank the Idaho National Laboratory and the Chemical Sciences, Geosciences, and Biosciences Division of the Office of Basic Energy Sciences of the Department of Energy. We also thank Dr. Michael K. Takase for assistance with X-ray crystallography. NR 67 TC 27 Z9 27 U1 4 U2 13 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD FEB 21 PY 2011 VL 50 IS 4 BP 1513 EP 1520 DI 10.1021/ic102119y PG 8 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 719BY UT WOS:000287175600043 PM 21192717 ER PT J AU Kirchheim, AP Dal Molin, DC Fischer, P Emwas, AH Provis, JL Monteiro, PJM AF Kirchheim, A. P. Dal Molin, D. C. Fischer, P. Emwas, Abdul-Hamid Provis, J. L. Monteiro, P. J. M. TI Real-Time High-Resolution X-ray Imaging and Nuclear Magnetic Resonance Study of the Hydration of Pure and Na-Doped C(3)A in the Presence of Sulfates SO INORGANIC CHEMISTRY LA English DT Article ID TRICALCIUM ALUMINATE; ETTRINGITE FORMATION; GYPSUM; MICROSCOPY; KINETICS AB This study details the differences in real-time hydration between pure tricalcium aluminate (cubic C(3)A or 3CaO center dot Al2O3) and Na-doped tricalcium aluminate (orthorhombic C(3)A or Na2Ca8Al6O18), in aqueous solutions containing sulfate ions. Pure phases were synthesized in the laboratory to develop an independent benchmark for the reactions, meaning that their reactions during hydration in a simulated early age cement pore solution (saturated with respect to gypsum and lime) were able to be isolated. Because the rate of this reaction is extremely rapid, most microscopy methods are not adequate to study the early phases of the reactions in the early stages. Here, a high-resolution full-field soft X-ray imaging technique operating in the X-ray water window, combined with solution analysis by Al-27 nuclear magnetic resonance (NMR) spectroscopy, was used to capture information regarding the mechanism of C(3)A hydration during the early stages. There are differences in the hydration mechanism between the two types of C(3)A, which are also dependent on the concentration of sulfate ions in the solution. The reactions with cubic C(3)A (pure) seem to be more influenced by higher concentrations of sulfate ions, forming smaller ettringite needles at a slower pace than the orthorhombic C(3)A (Na-doped) sample. The rate of release of aluminate species into the solution phase is also accelerated by Na doping. C1 [Kirchheim, A. P.; Dal Molin, D. C.] Univ Fed Rio Grande do Sul, Dept Civil Engn, Porto Alegre, RS, Brazil. [Fischer, P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. [Emwas, Abdul-Hamid] King Abdullah Univ Sci & Technol, NMR Core Lab, Thuwal 239556900, Saudi Arabia. [Provis, J. L.] Univ Melbourne, Dept Chem & Biomol Engn, Melbourne, Vic 3010, Australia. [Kirchheim, A. P.; Monteiro, P. J. M.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA. RP Kirchheim, AP (reprint author), Univ Fed Rio Grande do Sul, Dept Civil Engn, Porto Alegre, RS, Brazil. EM anapaula.k@gmail.com RI Kirchheim, Ana /B-4380-2009; Fischer, Peter/A-3020-2010; Provis, John/A-7631-2008 OI Kirchheim, Ana /0000-0002-8241-0331; Fischer, Peter/0000-0002-9824-9343; Provis, John/0000-0003-3372-8922 FU CAPES; CNPq of The Brazilian Ministry of Education; FAPERGS (Rio Grande do Sul Foundation to Support Research); King Abdullah University of Science and Technology (KAUST) [KUS-11-004021]; Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy [DE-AC02-05-CH11231]; Banksia Foundation, Australia; Australian Research Council FX A.P.K. acknowledge the financial support of CAPES, CNPq of The Brazilian Ministry of Education, and FAPERGS (Rio Grande do Sul Foundation to Support Research) and is grateful to Dong-Hyun Kim and Anne Sakdinawat (Center for X-ray Optics) for their assistance in acquiring the X-ray images. This publication was based on work supported in part by Award No. KUS-11-004021, made by King Abdullah University of Science and Technology (KAUST). The operation of the microscope is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy under Contract No. DE-AC02-05-CH11231. The participation of John Provis in this work was supported by the Banksia Foundation, Australia, through the awarding of the Brian Robinson Fellowship, as well as by the Australian Research Council. NR 28 TC 7 Z9 7 U1 2 U2 32 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD FEB 21 PY 2011 VL 50 IS 4 BP 1203 EP 1212 DI 10.1021/ic101460z PG 10 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 719BY UT WOS:000287175600009 PM 21247108 ER PT J AU Rodier, F Campisi, J AF Rodier, Francis Campisi, Judith TI Four faces of cellular senescence SO JOURNAL OF CELL BIOLOGY LA English DT Review ID ONCOGENE-INDUCED SENESCENCE; DNA-DAMAGE RESPONSE; HUMAN-DIPLOID FIBROBLASTS; MAMMARY EPITHELIAL-CELLS; INFLAMMATORY CYTOKINE SECRETION; HISTONE DEACETYLASE INHIBITORS; IN-VIVO; LIFE-SPAN; REPLICATIVE SENESCENCE; TUMOR-SUPPRESSOR AB Cellular senescence is an important mechanism for preventing the proliferation of potential cancer cells. Recently, however, it has become apparent that this process entails more than a simple cessation of cell growth. In addition to suppressing tumorigenesis, cellular senescence might also promote tissue repair and fuel inflammation associated with aging and cancer progression. Thus, cellular senescence might participate in four complex biological processes (tumor suppression, tumor promotion, aging, and tissue repair), some of which have apparently opposing effects. The challenge now is to understand the senescence response well enough to harness its benefits while suppressing its drawbacks. C1 [Campisi, Judith] Buck Inst Age Res, Novato, CA 94945 USA. [Rodier, Francis] Univ Montreal, Inst Canc Montreal, Ctr Hosp, Res Ctr, Montreal, PQ H2L 4M1, Canada. [Rodier, Francis] Univ Montreal, Dept Radiol Radio Oncol & Nucl Med, Montreal, PQ H3C 3J7, Canada. [Campisi, Judith] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Campisi, J (reprint author), Buck Inst Age Res, Novato, CA 94945 USA. EM jcampisi@buckinstitute.org FU Institut du Cancer de Montreal (Rene Malo Initiative for Innovative Research); Cancer Research Society (CRS); US National Institutes of Health (National Institute on Aging, National Cancer Institute); Department of Energy FX F. Rodier is supported by grants from the Institut du Cancer de Montreal (Rene Malo Initiative for Innovative Research) and Cancer Research Society (CRS). J. Campisi is supported by grants from the US National Institutes of Health (National Institute on Aging, National Cancer Institute) and the Department of Energy. The authors declare no commercial affiliations and no conflicts of interest. NR 130 TC 577 Z9 593 U1 18 U2 111 PU ROCKEFELLER UNIV PRESS PI NEW YORK PA 1114 FIRST AVE, 4TH FL, NEW YORK, NY 10021 USA SN 0021-9525 J9 J CELL BIOL JI J. Cell Biol. PD FEB 21 PY 2011 VL 192 IS 4 BP 547 EP 556 DI 10.1083/jcb.201009094 PG 10 WC Cell Biology SC Cell Biology GA 731HM UT WOS:000288096900003 PM 21321098 ER PT J AU Dumitru, A Dusling, K Gelis, F Jalilian-Marian, J Lappi, T Venugopalan, R AF Dumitru, Adrian Dusling, Kevin Gelis, Francois Jalilian-Marian, Jamal Lappi, Tuomas Venugopalan, Raju TI The ridge in proton-proton collisions at the LHC SO PHYSICS LETTERS B LA English DT Article DE QCD; High energy; Gluon saturation; Particle correlations ID GLUON PRODUCTION; NUCLEUS; GLASMA; FEATURES; QCD AB We show that the key features of the CMS result on the ridge correlation seen for high multiplicity events in root s = 7 TeV proton-proton collisions at the LHC can be understood in the Color Glass Condensate framework of high energy QCD. The same formalism underlies the explanation of the ridge events seen in A + A collisions at RHIC, albeit it is likely that flow effects may enhance the magnitude of the signal in the latter. (C) 2011 Elsevier B.V. All rights reserved. C1 [Dumitru, Adrian; Jalilian-Marian, Jamal] CUNY, Baruch Coll, Dept Nat Sci, New York, NY 10010 USA. [Dumitru, Adrian] RIKEN BNL Res Ctr, Brookhaven Natl Lab, Upton, NY 11973 USA. [Dusling, Kevin; Venugopalan, Raju] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Gelis, Francois] CEA DSM Saclay, CNRS, URA 2306, Inst Phys Theor, F-91191 Gif Sur Yvette, France. [Lappi, Tuomas] Univ Jyvaskyla, Dept Phys, Jyvaskyla 40014, Finland. [Lappi, Tuomas] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland. RP Jalilian-Marian, J (reprint author), CUNY, Baruch Coll, Dept Nat Sci, 17 Lexington Ave, New York, NY 10010 USA. EM jamal.jalilian-marian@baruch.cuny.edu OI Dusling, Kevin/0000-0001-9598-0416 FU DOE Office of Nuclear Physics [DE-FG02-09ER41620]; City University of New York through the PSC-CUNY [63382-00 41]; US Department of Energy under DOE [DE-AC02-98CH10886]; Academy of Finland [126604]; Agence Nationale de la Recherche [ANR-06-BLAN-0285-01]; Institute for Nuclear Theory at the University of Washington FX We would like to acknowledge James (Bj) Bjorken who in conversations with us at BNL and at the INT in May 2010 was enthusiastic about the prospects of observing the ridge in pp collisions. We gratefully acknowledge useful conversations with Larry McLerran, Robert Pisarski and Nick Samios. We thank Gunther Roland and David Wei Li of the CMS Collaboration for communications regarding the experimental findings. A.D. and J.J-M. gratefully acknowledge support by the DOE Office of Nuclear Physics through Grant No. DE-FG02-09ER41620 and from the City University of New York through the PSC-CUNY Research Award Program, grant 63382-00 41. K.D. and R.V. were supported by the US Department of Energy under DOE contract No. DE-AC02-98CH10886. T.L. is supported by the Academy of Finland, project 126604. F.G. is supported in part by Agence Nationale de la Recherche via the program ANR-06-BLAN-0285-01. T.L. and F.G. thank the Institute for Nuclear Theory at the University of Washington for partial support during the completion of this work. NR 42 TC 130 Z9 131 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD FEB 21 PY 2011 VL 697 IS 1 BP 21 EP 25 DI 10.1016/j.physletb.2011.01.024 PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 727IC UT WOS:000287790800005 ER PT J AU Aharmim, B Ahmed, SN Anthony, AE Barros, N Beier, EW Bellerive, A Beltran, B Bergevin, M Biller, SD Boudjemline, K Boulay, MG Cai, B Chan, YD Chauhan, D Chen, M Cleveland, BT Dai, X Deng, H Detwiler, J Doucas, G Drouin, PL Duncan, FA Dunford, M Earle, ED Elliott, SR Evans, HC Ewan, GT Farine, J Fergani, H Fleurot, F Ford, RJ Formaggio, JA Gagnon, N Goon, JTM Graham, K Guillian, E Habib, S Hahn, RL Hallin, AL Hallman, ED Harvey, PJ Hazama, R Heintzelman, WJ Heise, J Helmer, RL Hime, A Howard, C Huang, M Jamieson, B Jelley, NA Jerkins, M Klein, JR Kos, M Kraus, C Krauss, CB Kutter, T Kyba, CCM Law, J Lesko, KT Leslie, JR Loach, JC MacLellan, R Majerus, S Mak, HB Maneira, J Martin, R McCauley, N McDonald, AB Miller, ML Monreal, B Monroe, J Nickel, BG Noble, AJ O'Keeffe, HM Oblath, NS Gann, GDO Oser, SM Ott, RA Peeters, SJM Poon, AWP Prior, G Reitzner, SD Rielage, K Robertson, BC Robertson, RGH Schwendener, MH Secrest, JA Seibert, SR Simard, O Simpson, JJ Sinclair, D Skensved, P Sonley, TJ Stonehill, LC Tesic, G Tolich, N Tsui, T Van Berg, R VanDevender, BA Virtue, CJ Tseung, HWC Watson, PJS West, N Wilkerson, JF Wilson, JR Wright, A Yeh, M Zhang, F Zuber, K AF Aharmim, B. Ahmed, S. N. Anthony, A. E. Barros, N. Beier, E. W. Bellerive, A. Beltran, B. Bergevin, M. Biller, S. D. Boudjemline, K. Boulay, M. G. Cai, B. Chan, Y. D. Chauhan, D. Chen, M. Cleveland, B. T. Dai, X. Deng, H. Detwiler, J. Doucas, G. Drouin, P-L. Duncan, F. A. Dunford, M. Earle, E. D. Elliott, S. R. Evans, H. C. Ewan, G. T. Farine, J. Fergani, H. Fleurot, F. Ford, R. J. Formaggio, J. A. Gagnon, N. Goon, J. T. M. Graham, K. Guillian, E. Habib, S. Hahn, R. L. Hallin, A. L. Hallman, E. D. Harvey, P. J. Hazama, R. Heintzelman, W. J. Heise, J. Helmer, R. L. Hime, A. Howard, C. Huang, M. Jamieson, B. Jelley, N. A. Jerkins, M. Klein, J. R. Kos, M. Kraus, C. Krauss, C. B. Kutter, T. Kyba, C. C. M. Law, J. Lesko, K. T. Leslie, J. R. Loach, J. C. MacLellan, R. Majerus, S. Mak, H. B. Maneira, J. Martin, R. McCauley, N. McDonald, A. B. Miller, M. L. Monreal, B. Monroe, J. Nickel, B. G. Noble, A. J. O'Keeffe, H. M. Oblath, N. S. Gann, G. D. Orebi Oser, S. M. Ott, R. A. Peeters, S. J. M. Poon, A. W. P. Prior, G. Reitzner, S. D. Rielage, K. Robertson, B. C. Robertson, R. G. H. Schwendener, M. H. Secrest, J. A. Seibert, S. R. Simard, O. Simpson, J. J. Sinclair, D. Skensved, P. Sonley, T. J. Stonehill, L. C. Tesic, G. Tolich, N. Tsui, T. Van Berg, R. VanDevender, B. A. Virtue, C. J. Tseung, H. Wan Chan Watson, P. J. S. West, N. Wilkerson, J. F. Wilson, J. R. Wright, A. Yeh, M. Zhang, F. Zuber, K. CA SNO Collaboration TI LOW-MULTIPLICITY BURST SEARCH AT THE SUDBURY NEUTRINO OBSERVATORY SO ASTROPHYSICAL JOURNAL LA English DT Article DE neutrinos; supernovae: general ID FUTURE AB Results are reported from a search for low-multiplicity neutrino bursts in the Sudbury Neutrino Observatory. Such bursts could indicate the detection of a nearby core-collapse supernova explosion. The data were taken from Phase I (1999 November-2001 May), when the detector was filled with heavy water, and Phase II (2001 July-2003 August), when NaCl was added to the target. The search was a blind analysis in which the potential backgrounds were estimated and analysis cuts were developed to eliminate such backgrounds with 90% confidence before the data were examined. The search maintained a greater than 50% detection probability for standard supernovae occurring at a distance of up to 60 kpc for Phase I and up to 70 kpc for Phase II. No low-multiplicity bursts were observed during the data-taking period. C1 [Aharmim, B.; Chauhan, D.; Farine, J.; Fleurot, F.; Hallman, E. D.; Huang, M.; Kraus, C.; Schwendener, M. H.; Virtue, C. J.] Laurentian Univ, Dept Phys & Astron, Sudbury, ON P3E 2C6, Canada. [Ahmed, S. N.; Boudjemline, K.; Boulay, M. G.; Cai, B.; Chen, M.; Dai, X.; Duncan, F. A.; Earle, E. D.; Evans, H. C.; Ewan, G. T.; Ford, R. J.; Graham, K.; Guillian, E.; Harvey, P. J.; Heise, J.; Kos, M.; Kraus, C.; Leslie, J. R.; MacLellan, R.; Mak, H. B.; Martin, R.; McDonald, A. B.; Noble, A. J.; Robertson, B. C.; Skensved, P.; Wright, A.] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada. [Anthony, A. E.; Huang, M.; Jerkins, M.; Klein, J. R.; Seibert, S. R.] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA. [Barros, N.; Maneira, J.] Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal. [Beier, E. W.; Deng, H.; Dunford, M.; Heintzelman, W. J.; Klein, J. R.; Kyba, C. C. M.; McCauley, N.; Gann, G. D. Orebi; Secrest, J. A.; Seibert, S. R.; Van Berg, R.] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [Bellerive, A.; Boudjemline, K.; Dai, X.; Drouin, P-L.; Farine, J.; Graham, K.; Noble, A. J.; Simard, O.; Sinclair, D.; Tesic, G.; Watson, P. J. S.; Zhang, F.] Carleton Univ, Ottawa Carleton Inst Phys, Dept Phys, Ottawa, ON K1S 5B6, Canada. [Beltran, B.; Habib, S.; Hallin, A. L.; Howard, C.; Krauss, C. B.] Univ Alberta, Dept Phys, Edmonton, AB T6G 2R3, Canada. [Bergevin, M.; Law, J.; Nickel, B. G.; Reitzner, S. D.; Simpson, J. J.] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. [Bergevin, M.; Chan, Y. D.; Detwiler, J.; Gagnon, N.; Lesko, K. T.; Loach, J. C.; Martin, R.; Poon, A. W. P.; Prior, G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Inst Nucl & Particle Astrophys, Berkeley, CA 94720 USA. [Bergevin, M.; Chan, Y. D.; Detwiler, J.; Gagnon, N.; Lesko, K. T.; Loach, J. C.; Martin, R.; Poon, A. W. P.; Prior, G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Biller, S. D.; Cleveland, B. T.; Dai, X.; Doucas, G.; Fergani, H.; Gagnon, N.; Jelley, N. A.; Loach, J. C.; Majerus, S.; McCauley, N.; O'Keeffe, H. M.; Gann, G. D. Orebi; Peeters, S. J. M.; Tseung, H. Wan Chan; West, N.; Wilson, J. R.; Zuber, K.] Univ Oxford, Dept Phys, Oxford OX1 3RH, England. [Duncan, F. A.; Ford, R. J.] SNOLAB, Lively, ON P3Y 1N2, Canada. [Elliott, S. R.; Gagnon, N.; Heise, J.; Hime, A.; Rielage, K.; Seibert, S. R.; Stonehill, L. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Elliott, S. R.; Formaggio, J. A.; Gagnon, N.; Hazama, R.; Miller, M. L.; Oblath, N. S.; Rielage, K.; Robertson, R. G. H.; Stonehill, L. C.; Tolich, N.; VanDevender, B. A.; Tseung, H. Wan Chan; Wilkerson, J. F.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA. [Elliott, S. R.; Formaggio, J. A.; Gagnon, N.; Hazama, R.; Miller, M. L.; Oblath, N. S.; Rielage, K.; Robertson, R. G. H.; Stonehill, L. C.; Tolich, N.; VanDevender, B. A.; Tseung, H. Wan Chan; Wilkerson, J. F.] Univ Washington, Dept Phys, Seattle, WA 98195 USA. [Formaggio, J. A.; Miller, M. L.; Monreal, B.; Monroe, J.; Oblath, N. S.; Ott, R. A.; Sonley, T. J.] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA. [Goon, J. T. M.; Kutter, T.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA. [Hahn, R. L.; Yeh, M.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. [Heise, J.; Jamieson, B.; Oser, S. M.; Tsui, T.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. [Helmer, R. L.; Sinclair, D.] TRIUMF, Vancouver, BC V6T 2A3, Canada. RP Aharmim, B (reprint author), Laurentian Univ, Dept Phys & Astron, Sudbury, ON P3E 2C6, Canada. RI Hallin, Aksel/H-5881-2011; Kyba, Christopher/I-2014-2012; Dai, Xiongxin/I-3819-2013; Prior, Gersende/I-8191-2013; Maneira, Jose/D-8486-2011; Barros, Nuno/O-1921-2016; OI Rielage, Keith/0000-0002-7392-7152; Kyba, Christopher/0000-0001-7014-1843; Maneira, Jose/0000-0002-3222-2738; Barros, Nuno/0000-0002-1192-0705; Wilkerson, John/0000-0002-0342-0217; Prior, Gersende/0000-0002-6058-1420 FU Natural Sciences and Engineering Research Council, Canada; Industry Canada, Canada; National Research Council, Canada; Northern Ontario Heritage Fund, Canada; Atomic Energy of Canada, Ltd., Canada; Ontario Power Generation, Canada; High Performance Computing Virtual Laboratory, Canada; Canada Foundation for Innovation, Canada; Canada Research Chairs, Canada; Department of Energy, US; National Energy Research Scientific Computing Center, US; Alfred P. Sloan Foundation, US; Science and Technology Facilities Council, UK; Fundacao para a Ciencia e a Technologia, Portugal FX This research was supported by the following. Canada: Natural Sciences and Engineering Research Council, Industry Canada, National Research Council, Northern Ontario Heritage Fund, Atomic Energy of Canada, Ltd., Ontario Power Generation, High Performance Computing Virtual Laboratory, Canada Foundation for Innovation, Canada Research Chairs; US: Department of Energy, National Energy Research Scientific Computing Center, Alfred P. Sloan Foundation; UK: Science and Technology Facilities Council; Portugal: Fundacao para a Ciencia e a Technologia. We thank the SNO technical staff for their strong contributions. NR 19 TC 4 Z9 4 U1 0 U2 11 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD FEB 20 PY 2011 VL 728 IS 2 AR 83 DI 10.1088/0004-637X/728/2/83 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 716MP UT WOS:000286973600010 ER PT J AU Joggerst, CC Whalen, DJ AF Joggerst, C. C. Whalen, Daniel J. TI THE EARLY EVOLUTION OF PRIMORDIAL PAIR-INSTABILITY SUPERNOVAE SO ASTROPHYSICAL JOURNAL LA English DT Article DE early universe; supernovae: general ID METAL-POOR STARS; 1ST STARS; CHEMICAL ENRICHMENT; POPULATION III; MASSIVE STARS; 3-DIMENSIONAL SIMULATIONS; EARLY UNIVERSE; HII-REGIONS; EXPLOSIONS; FRAGMENTATION AB The observational signatures of the first cosmic explosions and their chemical imprint on second-generation stars both crucially depend on how heavy elements mix within the star at the earliest stages of the blast. We present numerical simulations of the early evolution of Population III (Pop III) pair-instability supernovae (PISNe) with the new adaptive mesh refinement code CASTRO. In stark contrast to 15-40 M-circle dot core-collapse primordial supernovae, we find no mixing in most 150-250 M-circle dot PISNe out to times well after breakout from the surface of the star. This may be the key to determining the mass of the progenitor of a primeval supernova, because vigorous mixing will cause emission lines from heavy metals such as Fe and Ni to appear much sooner in the light curves of core-collapse supernovae than in those of pair-instability explosions. Our models are consistent with observations of SN2007bi, the most likely PISN candidate found to date, which show that heavy elements in the interior of the SN are not mixed at all with helium in the outer envelope. Our results also imply that unlike low-mass Pop III supernovae, whose collective metal yields can be directly compared to the chemical abundances of extremely metal-poor stars, further detailed numerical simulations will be required to determine the nucleosynthetic imprint of very massive Pop III stars on their direct descendants. C1 [Joggerst, C. C.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95060 USA. [Joggerst, C. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Whalen, Daniel J.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA. RP Joggerst, CC (reprint author), Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95060 USA. EM cchurch@ucolick.org FU SciDAC Program [DE-FC02-06ER41438]; Bruce and Astrid McWilliams Center for Cosmology at the Carnegie Mellon University; National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396] FX The authors thank Stan Woosley for helpful discussions and the use of his KEPLER progenitor models. C.C.J. was supported in part by the SciDAC Program under contract DE-FC02-06ER41438. D.J.W. was supported by the Bruce and Astrid McWilliams Center for Cosmology at the Carnegie Mellon University. Work at LANL was done under the auspices of the National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396. All simulations were performed on the open cluster Coyote at Los Alamos National Laboratory. NR 40 TC 42 Z9 42 U1 0 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD FEB 20 PY 2011 VL 728 IS 2 AR 129 DI 10.1088/0004-637X/728/2/129 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 716MP UT WOS:000286973600055 ER PT J AU Malone, CM Nonaka, A Almgren, AS Bell, JB Zingale, M AF Malone, C. M. Nonaka, A. Almgren, A. S. Bell, J. B. Zingale, M. TI MULTIDIMENSIONAL MODELING OF TYPE I X-RAY BURSTS. I. TWO-DIMENSIONAL CONVECTION PRIOR TO THE OUTBURST OF A PURE He-4 ACCRETOR SO ASTROPHYSICAL JOURNAL LA English DT Article DE convection; hydrodynamics; methods: numerical; stars: neutron; X-rays: bursts ID EQUATION-OF-STATE; NEUTRON-STARS; THERMONUCLEAR RUNAWAYS; TURBULENT CONVECTION; MASSIVE STARS; HYDRODYNAMICS; OSCILLATIONS; EVOLUTION; SUPERNOVAE; DEFLAGRATIONS AB We present multidimensional simulations of the early convective phase preceding ignition in a Type I X-ray burst using the low Mach number hydrodynamics code, MAESTRO. A low Mach number approach is necessary in order to perform long-time integration required to study such phenomena. Using MAESTRO, we are able to capture the expansion of the atmosphere due to large-scale heating while capturing local compressibility effects such as those due to reactions and thermal diffusion. We also discuss the preparation of one-dimensional initial models and the subsequent mapping into our multidimensional framework. Our method of initial model generation differs from that used in previous multidimensional studies, which evolved a system through multiple bursts in one dimension before mapping onto a multidimensional grid. In our multidimensional simulations, we find that the resolution necessary to properly resolve the burning layer is an order of magnitude greater than that used in the earlier studies mentioned above. We characterize the convective patterns that form and discuss their resulting influence on the state of the convective region, which is important in modeling the outburst itself. C1 [Malone, C. M.; Zingale, M.] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA. [Nonaka, A.; Almgren, A. S.; Bell, J. B.] Lawrence Berkeley Natl Lab, Ctr Computat Sci & Engn, Berkeley, CA 94720 USA. RP Malone, CM (reprint author), SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA. EM cmalone@mail.astro.sunysb.edu OI Zingale, Michael/0000-0001-8401-030X FU DOE/Office of Nuclear Physics [DE-FG02-06ER41448]; DOE Office of Mathematics, Information, and Computational Sciences under the U.S. Department of Energy [DE-AC02-05CH11231]; U.S. Department of Energy [DE-AC02-98CH10886]; State of New York; Office of Science of the U. S. Department of Energy [DE-AC02-05CH11231] FX We thank Frank Timmes for making his conductivity and equation of state routines publicly available and Ed Brown for useful discussions regarding the possibility of relaxed resolution requirements for H burning. We also thank Andrew Cumming for providing the initial semi-analytic models and Stan Woosley for using the Kepler code to augment these models. The work at Stony Brook was supported by a DOE/Office of Nuclear Physics Outstanding Junior Investigator award, grant No. DE-FG02-06ER41448, to Stony Brook. The work at LBNL was supported by the SciDAC Program of the DOE Office of Mathematics, Information, and Computational Sciences under the U.S. Department of Energy under contract No. DE-AC02-05CH11231. This research utilized resources at the New York Center for Computational Sciences at Stony Brook University/Brookhaven National Laboratory, which is supported by the U.S. Department of Energy under contract No. DE-AC02-98CH10886 and by the State of New York. This research used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the U. S. Department of Energy under contract No. DE-AC02-05CH11231. NR 53 TC 13 Z9 13 U1 0 U2 4 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 FEB 20 PY 2011 VL 728 IS 2 AR 118 DI 10.1088/0004-637X/728/2/118 PG 18 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 716MP UT WOS:000286973600044 ER PT J AU Croteau, P Randazzo, JB Kostko, O Ahmed, M Liang, MC Yung, YL Boering, KA AF Croteau, Philip Randazzo, John B. Kostko, Oleg Ahmed, Musahid Liang, Mao-Chang Yung, Yuk L. Boering, Kristie A. TI MEASUREMENTS OF ISOTOPE EFFECTS IN THE PHOTOIONIZATION OF N-2 AND IMPLICATIONS FOR TITAN'S ATMOSPHERE SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE astrochemistry; ISM: clouds; molecular processes; planets and satellites: atmospheres; planets and satellites: composition; planets and satellites: individual ( Titan) ID PLANETARY-ATMOSPHERES; EXTREME-ULTRAVIOLET; CROSS-SECTIONS; ION CHEMISTRY; NITROGEN; HCN; N2; TEMPERATURE; COLLISIONS; C-12/C-13 AB Isotope effects in the non-dissociative photoionization of molecular nitrogen (N-2 + h --> N-2(+) + e(-)) may play a role in determining the relative abundances of isotopic species containing nitrogen in interstellar clouds and planetary atmospheres but have not been previously measured. Measurements of the photoionization efficiency spectra of N-14(2), (N14N)-N-15, and N-15(2) from 15.5 to 18.9 eV (65.6-80.0 nm) using the Advanced Light Source at Lawrence Berkeley National Laboratory show large differences in peak energies and intensities, with the ratio of the energy-dependent photoionization cross sections, sigma(N-14(2))/sigma((NN)-N-15-N-14), ranging from 0.4 to 3.5. Convolving the cross sections with the solar flux and integrating over the energies measured, the ratios of photoionization rate coefficients are J((NN)-N-15-N-14)/J(N-14(2)) = 1.00 +/- 0.02 and J(N-15(2))/J(N-14(2)) = 1.00 +/- 0.02, suggesting that isotopic fractionation between N-2 and N-2(+) should be small under such conditions. In contrast, in a one-dimensional model of Titan's atmosphere, isotopic self-shielding of N-14(2) leads to values of J((NN)-N-15-N-14)/J(N-14(2)) as large as similar to 1.17, larger than under optically thin conditions but still much smaller than values as high as similar to 29 predicted for N-2 photodissociation. Since modeled photodissociation isotope effects overpredict the (HCN)-N-15/(HCN)-N-14 ratio in Titan's atmosphere, and since both N atoms and N-2(+) ions may ultimately lead to the formation of HCN, estimates of the potential of including N-2 photoionization to contribute to a more quantitative explanation of N-15/N-14 for HCN in Titan's atmosphere are explored. C1 [Croteau, Philip; Randazzo, John B.; Boering, Kristie A.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Kostko, Oleg; Ahmed, Musahid] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Liang, Mao-Chang] Acad Sinica, Res Ctr Environm Changes, Taipei 115, Taiwan. [Liang, Mao-Chang] Acad Sinica, Inst Astron & Astrophys, Taipei 115, Taiwan. [Liang, Mao-Chang] Natl Cent Univ, Grad Inst Astron, Jhongli, Taiwan. [Yung, Yuk L.] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA. [Boering, Kristie A.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. RP Croteau, P (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM boering@berkeley.edu RI Ahmed, Musahid/A-8733-2009; Kostko, Oleg/B-3822-2009 OI Kostko, Oleg/0000-0003-2068-4991 FU NASA [NNX08AE69G, NX09AB72G]; Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy [DE-AC02-05CH11231]; NSC [98-2111-M-001-014-MY3] FX We gratefully acknowledge support from NASA Planetary Atmospheres grant NNX08AE69G to UC Berkeley and a Dreyfus Teacher-Scholar Award for K.A.B.; from the Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division of the U.S. Department of Energy under contract no. DE-AC02-05CH11231 for O.K., M A., and the ALS; from NSC grant 98-2111-M-001-014-MY3 to Academia Sinica for M.-C.L.; and NASA grant NX09AB72G to the California Institute of Technology for Y.L.Y. NR 37 TC 4 Z9 4 U1 1 U2 27 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 2041-8205 EI 2041-8213 J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD FEB 20 PY 2011 VL 728 IS 2 AR L32 DI 10.1088/2041-8205/728/2/L32 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 715YI UT WOS:000286931200008 ER PT J AU Green, D AF Green, Dan CA CMS Collaboration TI "REDISCOVERING" THE STANDARD MODEL AT CMS SO MODERN PHYSICS LETTERS A LA English DT Review DE Large Hadron Collider; CMS; Standard Model; beyond the Standard Model AB The Large Hadron Collider (LHC) began 7 TeV C.M. energy operation in April, 2010. The CMS experiment immediately analyzed the earliest data taken in order to "rediscover" the Standard Model (SM) of high energy physics. By the late summer, all SM particles were observed and CMS began to search for physics beyond the SM and beyond the present limits set at the Fermilab Tevatron. The first LHC run ended in Dec., 2010 with a total integrated luminosity of about 45 pb(-1) delivered to the experiments. C1 [Green, Dan; CMS Collaboration] CMS Dept, Fermilab, Batavia, IL 60510 USA. RP Green, D (reprint author), CMS Dept, Fermilab, Batavia, IL 60510 USA. EM dgreen@fnal.gov NR 19 TC 0 Z9 0 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0217-7323 EI 1793-6632 J9 MOD PHYS LETT A JI Mod. Phys. Lett. A PD FEB 20 PY 2011 VL 26 IS 5 BP 309 EP 317 DI 10.1142/S0217732311035134 PG 9 WC Physics, Nuclear; Physics, Particles & Fields; Physics, Mathematical SC Physics GA 722DQ UT WOS:000287411800001 ER PT J AU Tang, XZ AF Tang, X. Z. TI Numerical computation of the helical Chandrasekhar-Kendall modes SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Magnetic relaxation; Taylor state; Chandrasekhar-Kendall modes; Eigenvalue; Spherical tokamak; Reversed field pinch; Helicity injection ID FREE MAGNETIC FIELDS; TILTING INSTABILITY; TOROIDAL PLASMA; RELAXED STATES; CURRENT DRIVE; RELAXATION; GEOMETRIES; INJECTION; SPHEROMAK; OPERATOR AB A new formulation is presented for numerically computing the helical Chandrasekhar-Kendall modes in an axisymmetric torus. It explicitly imposes del . B = 0 and yields a standard matrix eigenvalue problem, which can then be solved by standard matrix eigenvalue techniques. Numerical implementation and computational results are shown for an axisymmetric torus typical of reversed field pinch and spherical tokamak. (C) 2010 Elsevier Inc. All rights reserved. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Tang, XZ (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM xtang@lanl.gov NR 21 TC 1 Z9 1 U1 1 U2 4 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 FEB 20 PY 2011 VL 230 IS 4 BP 907 EP 919 DI 10.1016/j.jcp.2010.07.033 PG 13 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300004 ER PT J AU Shestakov, AI Vignes, RM Stolken, JS AF Shestakov, A. I. Vignes, R. M. Stoelken, J. S. TI Derivation and solution of multifrequency radiation diffusion equations for homogeneous refractive lossy media SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Radiation diffusion; Refractive lossy media; Rapid heating, cooling of silica ID HEAT-TRANSFER; FUSED-SILICA; TEMPERATURE; GLASS AB Starting from the radiation transport equation for homogeneous, refractive lossy media, we derive the corresponding time-dependent multifrequency diffusion equations. Zeroth and first moments of the transport equation couple the energy density, flux and pressure tensor. The system is closed by neglecting the temporal derivative of the flux and replacing the pressure tensor by its diagonal analogue. The radiation equations are coupled to a diffusion equation for the matter temperature. We are interested in modeling heating and cooling of silica (SiO(2)), at possibly rapid rates. Hence, in contrast to related work, we retain the temporal derivative of the radiation field. We derive boundary conditions at a planar air-silica interface taking account of reflectivities obtained from the Fresnel relations that include absorption. The spectral dimension is discretized into a finite number of intervals leading to a system of multigroup diffusion equations. Three simulations are presented. One models cooling of a silica slab, initially at 2500K, for 10 s. The other two are 1D and 2D simulations of irradiating silica with a CO(2) laser, lambda = 10.59 mu m. In 2D, a laser beam (Gaussian profile, r(o) = 0.5 mm for 1/e decay) shines on a disk (radius = 0.4, thickness = 0.4 cm). (C) 2010 Published by Elsevier Inc. C1 [Shestakov, A. I.; Vignes, R. M.; Stoelken, J. S.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Shestakov, AI (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM shestakovl@llnl.gov FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Lawrence Livermore National Laboratory [LDRD:08-ERD-057] FX This work performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.; This work was supported by the Lawrence Livermore National Laboratory directed research program, contract LDRD:08-ERD-057. NR 20 TC 4 Z9 4 U1 0 U2 3 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 FEB 20 PY 2011 VL 230 IS 4 BP 984 EP 999 DI 10.1016/j.jcp.2010.10.008 PG 16 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300008 ER PT J AU Densmore, JD AF Densmore, Jeffery D. TI Asymptotic analysis of the spatial discretization of radiation absorption and re-emission in Implicit Monte Carlo SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Radiative transfer; Implicit Monte Carlo; Asymptotic analysis ID NUMERICAL TRANSPORT PROBLEMS; DIFFUSIVE REGIMES; OPTICALLY THICK; LIMIT; EQUATION; SCHEME; TIME AB We perform an asymptotic analysis of the spatial discretization of radiation absorption and re-emission in Implicit Monte Carlo (IMC), a Monte Carlo technique for simulating nonlinear radiative transfer. Specifically, we examine the approximation of absorption and re-emission by a spatially continuous artificial-scattering process and either a piecewise-constant or piecewise-linear emission source within each spatial cell. We consider three asymptotic scalings representing (i) a time step that resolves the mean-free time, (ii) a Courant limit on the time-step size, and (iii) a fixed time step that does not depend on any asymptotic scaling. For the piecewise-constant approximation, we show that only the third scaling results in a valid discretization of the proper diffusion equation, which implies that IMC may generate inaccurate solutions with optically large spatial cells if time steps are refined. However, we also demonstrate that, for a certain class of problems, the piecewise-linear approximation yields an appropriate discretized diffusion equation under all three scalings. We therefore expect IMC to produce accurate solutions for a wider range of time-step sizes when the piecewise-linear instead of piecewise-constant discretization is employed. We demonstrate the validity of our analysis with a set of numerical examples. (C) 2010 Elsevier Inc. All rights reserved. C1 Los Alamos Natl Lab, Computat Phys & Methods Grp, Los Alamos, NM 87545 USA. RP Densmore, JD (reprint author), Los Alamos Natl Lab, Computat Phys & Methods Grp, POB 1663,MS D409, Los Alamos, NM 87545 USA. EM jdd@lanl.gov FU US government Los Alamos National Laboratory [DE-AC52-06NA25396] FX The author thanks Jim Warsa (Los Alamos National Laboratory) for helpful discussions. This work was performed under US government contract DE-AC52-06NA25396 for Los Alamos National Laboratory, which is operated by Los Alamos National Security, LLC, for the US Department of Energy. NR 22 TC 6 Z9 6 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 FEB 20 PY 2011 VL 230 IS 4 BP 1116 EP 1133 DI 10.1016/j.jcp.2010.10.030 PG 18 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300015 ER PT J AU Dubcova, L Solin, P Hansen, G Park, H AF Dubcova, Lenka Solin, Pavel Hansen, Glen Park, HyeongKae TI Comparison of multimesh hp-FEM to interpolation and projection methods for spatial coupling of thermal and neutron diffusion calculations SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Reactor multiphysics simulation; Coupled diffusion; Multiphysics error ID FINITE-ELEMENT-METHOD; ADAPTIVITY; MESHES AB Multiphysics solution challenges are legion within the field of nuclear reactor design and analysis. One major issue concerns the coupling between heat and neutron flow (neutronics) within the reactor assembly. These phenomena are usually very tightly interdependent, as large amounts of heat are quickly produced with an increase in fission events within the fuel, which raises the temperature that affects the neutron cross section of the fuel. Furthermore, there typically is a large diversity of time and spatial scales between mathematical models of heat and neutronics. Indeed, the different spatial resolution requirements often lead to the use of very different meshes for the two phenomena. As the equations are coupled, one must take care in exchanging solution data between them, or significant error can be introduced into the coupled problem. We propose a novel approach to the discretization of the coupled problem on different meshes based on an adaptive multimesh higher-order finite element method (hp-FEM), and compare it to popular interpolation and projection methods. We show that the multimesh hp-FEM method is significantly more accurate than the interpolation and projection approaches considered in this study. (C) 2010 Elsevier Inc. All rights reserved. C1 [Solin, Pavel] Univ Nevada, Dept Math & Stat, Reno, NV 89557 USA. [Dubcova, Lenka; Solin, Pavel] Inst Thermomech, CZ-18200 Prague, Czech Republic. [Hansen, Glen; Park, HyeongKae] Idaho Natl Lab, Multiphys Methods Grp, Idaho Falls, ID 83415 USA. RP Solin, P (reprint author), Univ Nevada, Dept Math & Stat, 1664 N Virginia St, Reno, NV 89557 USA. EM dubcova@gmail.com; solin@unr.edu; Glen.Hansen@inl.gov; Ryosuke.Park@inl.gov OI Hansen, Glen/0000-0002-1786-9285 FU US Government [DEAC07-05ID14517 (INL/JOU-10-18340)]; DOE NEUP [00089911]; Agency of the Academy of Sciences of the Czech Republic [IAA100760702] FX The submitted manuscript has been authored by a contractor of the US Government under Contract No. DEAC07-05ID14517 (INL/JOU-10-18340). Accordingly, the US Government retains a non-exclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. The authors also acknowledge the financial support of the DOE NEUP program under BEA Contract No. 00089911. This work was also supported financially by the Grant Agency of the Academy of Sciences of the Czech Republic under Grant No. IAA100760702. NR 19 TC 8 Z9 8 U1 0 U2 6 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 FEB 20 PY 2011 VL 230 IS 4 BP 1182 EP 1197 DI 10.1016/j.jcp.2010.10.034 PG 16 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300019 ER PT J AU Edwards, JD Morel, JE Knoll, DA AF Edwards, Jarrod D. Morel, Jim E. Knoll, Dana A. TI Nonlinear variants of the TR/BDF2 method for thermal radiative diffusion SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Trapezoidal BDF-2; nonlinear radiative diffusion AB We apply the Trapezoidal/BDF2 (TR/BDF2) temporal discretization scheme to nonlinear grey radiative diffusion. This is a scheme that is not well-known within the radiation transport community, but we show that it offers many desirable characteristics relative to other second-order schemes. Several nonlinear variants of the TR/BDF2 scheme are defined and computationally compared with the Crank-Nicholson scheme. It is found for our test problems that the most accurate TR/BDF2 schemes are those that are fully iterated to nonlinear convergence, but the most efficient TR/BDF2 scheme is one based upon a single Newton iteration. It is also shown that neglecting the contributions to the Jacobian matrix from the cross-sections, which is often done due to a lack of smooth interpolations for tabular cross-section data, has a significant impact upon efficiency. (C) 2010 Elsevier Inc. All rights reserved. C1 [Edwards, Jarrod D.; Morel, Jim E.] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr 129, College Stn, TX 77843 USA. [Knoll, Dana A.] Los Alamos Natl Lab, Fluid Dynam & Solid Mech Grp T3, Los Alamos, NM 87545 USA. RP Morel, JE (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr 129, TAMU 3133, College Stn, TX 77843 USA. EM morel@tamu.edu FU DOE NNSA-ASC [DE-FC52-08NA28616] FX We thank Professor Jean Ragusa of Texas A&M University for many invaluable discussions relating to Runge-Kutta methods and time-integration in general. Work by Edwards and Morel was partially supported by the Predictive Sciences Academic Alliances Program in DOE NNSA-ASC under Grant DE-FC52-08NA28616. NR 12 TC 4 Z9 4 U1 0 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 FEB 20 PY 2011 VL 230 IS 4 BP 1198 EP 1214 DI 10.1016/j.jcp.2010.10.035 PG 17 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300020 ER PT J AU Martinez, E Monasterio, PR Marian, J AF Martinez, E. Monasterio, P. R. Marian, J. TI Billion-atom synchronous parallel kinetic Monte Carlo simulations of critical 3D Ising systems SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Kinetic Monte Carlo; Parallel computing; Discrete lattice; Ising system ID CRITICAL-DYNAMICS; MODEL; ALGORITHM AB An extension of the synchronous parallel kinetic Monte Carlo (spkMC) algorithm developed by Martinez et al. [J. Comp. Phys. 227 (2008) 3804] to discrete lattices is presented. The method solves the master equation synchronously by recourse to null events that keep all processors' time clocks current in a global sense. Boundary conflicts are resolved by adopting a chessboard decomposition into non-interacting sublattices. We find that the bias introduced by the spatial correlations attendant to the sublattice decomposition is within the standard deviation of serial calculations, which confirms the statistical validity of our algorithm. We have analyzed the parallel efficiency of spkMC and find that it scales consistently with problem size and sublattice partition. We apply the method to the calculation of scale-dependent critical exponents in billion-atom 3D Ising systems, with very good agreement with state-of-the-art multispin simulations. Published by Elsevier Inc. C1 [Marian, J.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Martinez, E.] IMDEA Mat, Madrid 28040, Spain. [Monasterio, P. R.] MIT, Cambridge, MA 02139 USA. RP Marian, J (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM marian1@llnl.gov FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Spanish Ministry of Science and Education FX We thank M. H. Kalos for his invaluable guidance, suggestions, and inspiration, as this work would not have been possible without him. This work performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344. E. M. acknowledges support from the Spanish Ministry of Science and Education under the "Juan de la Cierva" programme. NR 35 TC 15 Z9 15 U1 1 U2 13 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 FEB 20 PY 2011 VL 230 IS 4 BP 1359 EP 1369 DI 10.1016/j.jcp.2010.11.006 PG 11 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300029 ER PT J AU Booth, TE AF Booth, Thomas E. TI An alternative Monte Carlo approach to the thermal radiative transfer problem SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Thermal radiative transfer; Monte Carlo; Event based sampling; Analog AB The usual Monte Carlo approach to the thermal radiative transfer problem is to view Monte Carlo as a solution technique for the nonlinear thermal radiative transfer equations. The equations contain time derivatives which are approximated by introducing small time steps. An alternative approach avoids time steps by using Monte Carlo to directly sample the time at which the next event occurs. That is, the time is advanced on a natural event-by-event basis rather than by introducing an artificial time step. (C) 2010 Elsevier Inc. All rights reserved. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Booth, TE (reprint author), Los Alamos Natl Lab, Mail Stop A143, Los Alamos, NM 87545 USA. EM teb@lanl.gov NR 7 TC 1 Z9 1 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 FEB 20 PY 2011 VL 230 IS 4 BP 1516 EP 1527 DI 10.1016/j.jcp.2010.11.018 PG 12 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300039 ER PT J AU Wollaber, AB Larsen, EW AF Wollaber, Allan B. Larsen, Edward W. TI A linear stability analysis for nonlinear, grey, thermal radiative transfer problems SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article DE Monte Carlo; Stability; Monotonicity; Radiative transfer AB We present a new linear stability analysis of three time discretizations and Monte Carlo interpretations of the nonlinear, grey thermal radiative transfer (TRT) equations: the widely used "Implicit Monte Carlo" (IMC) equations, the Carter Forest (CF) equations, and the Ahrens-Larsen or "Semi-Analog Monte Carlo" (SMC) equations. Using a spatial Fourier analysis of the 1-D Implicit Monte Carlo (IMC) equations that are linearized about an equilibrium solution, we show that the IMC equations are unconditionally stable (undamped perturbations do not exist) if alpha, the IMC time-discretization parameter, satisfies 0.5 < alpha <= 1. This is consistent with conventional wisdom. However, we also show that for sufficiently large time steps, unphysical damped oscillations can exist that correspond to the lowest-frequency Fourier modes. After numerically confirming this result, we develop a method to assess the stability of any time discretization of the O-D, nonlinear, grey, thermal radiative transfer problem. Subsequent analyses of the CF and SMC methods then demonstrate that the CF method is unconditionally stable and monotonic, but the SMC method is conditionally stable and permits unphysical oscillatory solutions that can prevent it from reaching equilibrium. This stability theory provides new conditions or. the time step to guarantee monotonicity of the IMC solution, although they are likely too conservative to be used in practice. Theoretical predictions are tested and confirmed with numerical experiments. (C) 2010 Elsevier Inc. All rights reserved C1 [Wollaber, Allan B.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Larsen, Edward W.] Univ Michigan, Ann Arbor, MI 48109 USA. RP Wollaber, AB (reprint author), Los Alamos Natl Lab, CCS 2,POB 1663,MS D-409, Los Alamos, NM 87545 USA. EM wollaber@lanl.gov; edlarsen@umich.edu OI Wollaber, Allan/0000-0001-5997-9610 FU Department of Energy [DE-FG02-97ER25308]; US Department of Energy [DE-AC52-06NA25396] FX This research was partly performed under appointment by the Department of Energy Computational Science Graduate Fellowship, which is provided under Grant No. DE-FG02-97ER25308, and partly under Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US Department of Energy under contract DE-AC52-06NA25396. NR 15 TC 3 Z9 3 U1 0 U2 4 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 FEB 20 PY 2011 VL 230 IS 4 BP 1528 EP 1546 DI 10.1016/j.jcp.2010.11.019 PG 19 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 714BQ UT WOS:000286782300040 ER PT J AU Borucki, WJ Koch, DG Basri, G Batalha, N Boss, A Brown, TM Caldwell, D Christensen-Dalsgaard, J Cochran, WD DeVore, E Dunham, EW Dupree, AK Gautier, TN Geary, JC Gilliland, R Gould, A Howell, SB Jenkins, JM Kjeldsen, H Latham, DW Lissauer, JJ Marcy, GW Monet, DG Sasselov, D Tarter, J Charbonneau, D Doyle, L Ford, EB Fortney, J Holman, MJ Seager, S Steffen, JH Welsh, WF Allen, C Bryson, ST Buchhave, L Chandrasekaran, H Christiansen, JL Ciardi, D Clarke, BD Dotson, JL Endl, M Fischer, D Fressin, F Haas, M Horch, E Howard, A Isaacson, H Kolodziejczak, J Li, J MacQueen, P Meibom, S Prsa, A Quintana, EV Rowe, J Sherry, W Tenenbaum, P Torres, G Twicken, JD Van Cleve, J Walkowicz, L Wu, H AF Borucki, William J. Koch, David G. Basri, Gibor Batalha, Natalie Boss, Alan Brown, Timothy M. Caldwell, Douglas Christensen-Dalsgaard, Jorgen Cochran, William D. DeVore, Edna Dunham, Edward W. Dupree, Andrea K. Gautier, Thomas N., III Geary, John C. Gilliland, Ronald Gould, Alan Howell, Steve B. Jenkins, Jon M. Kjeldsen, Hans Latham, David W. Lissauer, Jack J. Marcy, Geoffrey W. Monet, David G. Sasselov, Dimitar Tarter, Jill Charbonneau, David Doyle, Laurance Ford, Eric B. Fortney, Jonathan Holman, Matthew J. Seager, Sara Steffen, Jason H. Welsh, William F. Allen, Christopher Bryson, Stephen T. Buchhave, Lars Chandrasekaran, Hema Christiansen, Jessie L. Ciardi, David Clarke, Bruce D. Dotson, Jessie L. Endl, Michael Fischer, Debra Fressin, Francois Haas, Michael Horch, Elliott Howard, Andrew Isaacson, Howard Kolodziejczak, Jeffery Li, Jie MacQueen, Phillip Meibom, Soren Prsa, Andrej Quintana, Elisa V. Rowe, Jason Sherry, William Tenenbaum, Peter Torres, Guillermo Twicken, Joseph D. Van Cleve, Jeffrey Walkowicz, Lucianne Wu, Hayley TI CHARACTERISTICS OF KEPLER PLANETARY CANDIDATES BASED ON THE FIRST DATA SET SO ASTROPHYSICAL JOURNAL LA English DT Article DE planets and satellites: detection; surveys ID TRANSITING PLANET; INITIAL CHARACTERISTICS; TERRESTRIAL PLANETS; CADENCE DATA; PERFORMANCE; SCIENCE; STAR AB In the spring of 2009, the Kepler Mission commenced high-precision photometry on nearly 156,000 stars to determine the frequency and characteristics of small exoplanets, conduct a guest observer program, and obtain asteroseismic data on a wide variety of stars. On 2010 June 15, the Kepler Mission released most of the data from the first quarter of observations. At the time of this data release, 705 stars from this first data set have exoplanet candidates with sizes from as small as that of Earth to larger than that of Jupiter. Here we give the identity and characteristics of 305 released stars with planetary candidates. Data for the remaining 400 stars with planetary candidates will be released in 2011 February. More than half the candidates on the released list have radii less than half that of Jupiter. Five candidates are present in and near the habitable zone; two near super-Earth size, and three bracketing the size of Jupiter. The released stars also include five possible multi-planet systems. One of these has two Neptune-size (2.3 and 2.5 Earth radius) candidates with near-resonant periods. C1 [Borucki, William J.; Koch, David G.; Lissauer, Jack J.; Bryson, Stephen T.; Dotson, Jessie L.; Haas, Michael; Rowe, Jason] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA. [Basri, Gibor; Marcy, Geoffrey W.; Howard, Andrew; Isaacson, Howard; Walkowicz, Lucianne] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Batalha, Natalie] San Jose State Univ, San Jose, CA 95192 USA. [Boss, Alan] Carnegie Inst Washington, Washington, DC 20015 USA. [Brown, Timothy M.] Las Cumbres Observ Global Telescope, Goleta, CA 93117 USA. [Caldwell, Douglas; DeVore, Edna; Jenkins, Jon M.; Tarter, Jill; Doyle, Laurance; Chandrasekaran, Hema; Christiansen, Jessie L.; Clarke, Bruce D.; Li, Jie; Quintana, Elisa V.; Tenenbaum, Peter; Twicken, Joseph D.; Van Cleve, Jeffrey; Wu, Hayley] SETI Inst, Mountain View, CA 94043 USA. [Christensen-Dalsgaard, Jorgen; Kjeldsen, Hans] Aarhus Univ, Aarhus, Denmark. [Cochran, William D.; Endl, Michael; MacQueen, Phillip] Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA. [Dunham, Edward W.] Lowell Observ, Flagstaff, AZ 86001 USA. [Dupree, Andrea K.; Geary, John C.; Latham, David W.; Sasselov, Dimitar; Charbonneau, David; Holman, Matthew J.; Buchhave, Lars; Fressin, Francois; Meibom, Soren; Torres, Guillermo] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Gautier, Thomas N., III] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA. [Gilliland, Ronald] Space Telescope Sci Inst, Baltimore, MD 21218 USA. [Gould, Alan] Lawrence Hall Sci, Berkeley, CA 94720 USA. [Howell, Steve B.; Sherry, William] Natl Opt Astron Observ, Tucson, AZ 85719 USA. [Monet, David G.] USN Observ, Flagstaff, AZ 86001 USA. [Ford, Eric B.] Univ Florida, Gainesville, FL 32611 USA. [Fortney, Jonathan] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA. [Seager, Sara] MIT, Cambridge, MA 02139 USA. [Steffen, Jason H.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Welsh, William F.] San Diego State Univ, San Diego, CA 92182 USA. [Allen, Christopher] Orbital Sci Corp, Mountain View, CA 94043 USA. [Ciardi, David] Exoplanet Sci Inst Caltech, Pasadena, CA 91125 USA. [Fischer, Debra] Yale Univ, New Haven, CT 06520 USA. [Horch, Elliott] So Connecticut State Univ, New Haven, CT 06515 USA. [Kolodziejczak, Jeffery] MSFC, Huntsville, AL 35805 USA. [Prsa, Andrej] Villanova Univ, Villanova, PA 19085 USA. RP Borucki, WJ (reprint author), NASA, Ames Res Ctr, Moffett Field, CA 94035 USA. EM William.J.Borucki@nasa.gov RI Caldwell, Douglas/L-7911-2014; Howard, Andrew/D-4148-2015; OI /0000-0001-6545-639X; Fischer, Debra/0000-0003-2221-0861; Buchhave, Lars A./0000-0003-1605-5666; Caldwell, Douglas/0000-0003-1963-9616; Howard, Andrew/0000-0001-8638-0320; Fortney, Jonathan/0000-0002-9843-4354; Ciardi, David/0000-0002-5741-3047 FU NASA's Science Mission Directorate; W. M. Keck Foundation FX Kepler was competitively selected as the 10th Discovery mission. Funding for this mission is provided by NASA's Science Mission Directorate. Some of the data presented herein were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The authors thank the many people who gave so generously of their time to make this mission a success. NR 30 TC 192 Z9 192 U1 0 U2 17 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD FEB 20 PY 2011 VL 728 IS 2 AR 117 DI 10.1088/0004-637X/728/2/117 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 716MP UT WOS:000286973600043 ER PT J AU Gnedin, NY Kravtsov, AV AF Gnedin, Nickolay Y. Kravtsov, Andrey V. TI ENVIRONMENTAL DEPENDENCE OF THE KENNICUTT-SCHMIDT RELATION IN GALAXIES SO ASTROPHYSICAL JOURNAL LA English DT Article DE cosmology: theory; galaxies: evolution; galaxies: formation; methods: numerical; stars: formation ID STAR-FORMATION LAW; DIFFUSE IONIZED-GAS; SURFACE BRIGHTNESS GALAXIES; TO-MOLECULAR TRANSITION; ON SPIRAL GALAXIES; DWARF GALAXIES; INTERSTELLAR-MEDIUM; PHOTODISSOCIATION FRONTS; COSMOLOGICAL SIMULATIONS; NUMERICAL SIMULATIONS AB We present a detailed description of a phenomenological H-2 formation model and local star formation prescription based on the density of molecular (rather than total) gas. Such an approach allows us to avoid the arbitrary density and temperature thresholds typically used in star formation recipes in galaxy formation simulations. We present results of the model based on realistic cosmological simulations of high-z galaxy formation for a grid of numerical models with varied dust-to-gas ratios and interstellar far-UV (FUV) fluxes. Our results show that both the atomic-to-molecular transition on small, tens-of-parsec scales and the Kennicutt-Schmidt (K-S) relation on large, kiloparsec scales are sensitive to the dust-to-gas ratio and the FUV flux. The atomic-to-molecular transition as a function of gas density or column density has a large scatter but is rather sharp and shifts to higher densities with decreasing dust-to-gas ratio and/or increasing FUV flux. Consequently, star formation is concentrated to higher gas surface density regions, resulting in steeper slope and lower amplitude of the K-S relation at a given Sigma(H), in less dusty and/or higher FUV flux environments. We parameterize the dependences observed in our simulations in convenient fitting formulae, which can be used to model the dependence of the K-S relation on the dust-to-gas ratio and FUV flux in semi-analytic models and in cosmological simulations that do not include radiative transfer and H-2 formation. Finally, we show that ionized gas can contribute a significant fraction of the total gas surface density in environments typical for high-redshift galaxies. C1 [Gnedin, Nickolay Y.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. [Gnedin, Nickolay Y.; Kravtsov, Andrey V.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Gnedin, Nickolay Y.; Kravtsov, Andrey V.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Gnedin, Nickolay Y.; Kravtsov, Andrey V.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. RP Gnedin, NY (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA. EM gnedin@fnal.gov; andrey@oddjob.uchicago.edu FU DOE at Fermilab; NSF [AST-0507596, AST-0708154]; Kavli Institute for Cosmological Physics at the University of Chicago through the NSF [PHY-0551142]; Kavli Foundation; Fermilab; Kavli Institute for Cosmological Physics; University of Chicago FX This work was supported in part by the DOE at Fermilab, by the NSF grants AST-0507596 and AST-0708154, and by the Kavli Institute for Cosmological Physics at the University of Chicago through the NSF grant PHY-0551142 and an endowment from the Kavli Foundation. The simulations used in this work have been performed on the Joint Fermilab-KICP Supercomputing Cluster, supported by grants from Fermilab, Kavli Institute for Cosmological Physics, and the University of Chicago. This work made extensive use of the NASA Astrophysics Data System and arXiv.org preprint server. NR 98 TC 85 Z9 86 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD FEB 20 PY 2011 VL 728 IS 2 AR 88 DI 10.1088/0004-637X/728/2/88 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 716MP UT WOS:000286973600015 ER PT J AU White, M Blanton, M Bolton, A Schlegel, D Tinker, J Berlind, A da Costa, L Kazin, E Lin, YT Maia, M McBride, CK Padmanabhan, N Parejko, J Percival, W Prada, F Ramos, B Sheldon, E de Simoni, F Skibba, R Thomas, D Wake, D Zehavi, I Zheng, Z Nichol, R Schneider, DP Strauss, MA Weaver, BA Weinberg, DH AF White, Martin Blanton, M. Bolton, A. Schlegel, D. Tinker, J. Berlind, A. da Costa, L. Kazin, E. Lin, Y. -T. Maia, M. McBride, C. K. Padmanabhan, N. Parejko, J. Percival, W. Prada, F. Ramos, B. Sheldon, E. de Simoni, F. Skibba, R. Thomas, D. Wake, D. Zehavi, I. Zheng, Z. Nichol, R. Schneider, Donald P. Strauss, Michael A. Weaver, B. A. Weinberg, David H. TI THE CLUSTERING OF MASSIVE GALAXIES AT z similar to 0.5 FROM THE FIRST SEMESTER OF BOSS DATA SO ASTROPHYSICAL JOURNAL LA English DT Article DE large-scale structure of universe ID DIGITAL SKY SURVEY; LUMINOUS RED GALAXIES; HALO OCCUPATION DISTRIBUTION; LARGE-SCALE STRUCTURE; SURVEY IMAGING DATA; PHOTOMETRIC REDSHIFTS; 2DF-SDSS LRG; DATA RELEASE; DARK-MATTER; REAL-SPACE AB We calculate the real-and redshift-space clustering of massive galaxies at z similar to 0.5 using the first semester of data by the Baryon Oscillation Spectroscopic Survey ( BOSS). We study the correlation functions of a sample of 44,000 massive galaxies in the redshift range 0.4 < z < 0.7. We present a halo-occupation distribution modeling of the clustering results and discuss the implications for the manner in which massive galaxies at z similar to 0.5 occupy dark matter halos. The majority of our galaxies are central galaxies living in halos of mass 10(13) h(-1) M-circle dot, but 10% are satellites living in halos 10 times more massive. These results are broadly in agreement with earlier investigations of massive galaxies at z similar to 0.5. The inferred large-scale bias (b similar or equal to 2) and relatively high number density ((n) over bar = 3 x 10(-4) h(3) Mpc(-3)) imply that BOSS galaxies are excellent tracers of large-scale structure, suggesting BOSS will enable a wide range of investigations on the distance scale, the growth of large-scale structure, massive galaxy evolution, and other topics. C1 [White, Martin] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [White, Martin] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA. [White, Martin; Schlegel, D.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Blanton, M.; Tinker, J.; Kazin, E.; Weaver, B. A.] NYU, Ctr Cosmol & Particle Phys, New York, NY 10003 USA. [Bolton, A.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA. [Berlind, A.; McBride, C. K.] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA. [da Costa, L.; Maia, M.; Ramos, B.; de Simoni, F.] Observ Nacl, BR-20921400 Br Rio De Janeiro, Brazil. [Lin, Y. -T.] Univ Tokyo, IPMU, Tokyo 1138654, Japan. [Padmanabhan, N.; Parejko, J.; Wake, D.; Zheng, Z.] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT USA. [Percival, W.; Thomas, D.; Nichol, R.] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2UP, Hants, England. [Prada, F.] Inst Astrofis Andalucia, E-18080 Granada, Spain. [Sheldon, E.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Skibba, R.] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. [Zehavi, I.] Case Western Reserve Univ, Dept Astron, Cleveland, OH 44106 USA. [Schneider, Donald P.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. [Strauss, Michael A.] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Weinberg, David H.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA. [Weinberg, David H.] Ohio State Univ, CCAPP, Columbus, OH 43210 USA. RP White, M (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. RI White, Martin/I-3880-2015 OI White, Martin/0000-0001-9912-5070 FU Alfred P. Sloan Foundation; National Science Foundation; U.S. Department of Energy; NSF; NASA; Spanish MICINN [CSD2009-00064] FX Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy. The SDSS-III Web site is http://www.sdss3.org/.; M.W. was supported by the NSF and NASA. F.P. acknowledges support from the Spanish MICINN's Consolider grant MultiDark CSD2009-00064. NR 62 TC 147 Z9 147 U1 0 U2 6 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD FEB 20 PY 2011 VL 728 IS 2 AR 126 DI 10.1088/0004-637X/728/2/126 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 716MP UT WOS:000286973600052 ER PT J AU Banks, JW AF Banks, J. W. TI A note on compressive limiting for two-material flows SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS LA English DT Article DE multi-material flows; artificial compression; shock capturing; Godunov methods; compressible flows; overlapping grids ID SCHEMES AB In this short note we describe a simple extension to the multi-material shock-capturing algorithm presented in (J. Comput. Phys. 2007; 223:262-297) that can be used to maintain sharp material interfaces. The method takes the form of an artificial compression which is designed so that the material indicator jumps across only a few cells but which does not excite physical instabilities in the flow. The advantages of the approach include its simplicity and flexibility in that it provides a parameter that effectively determines the captured interface thickness. Copyright (C) 2009 John Wiley & Sons, Ltd. C1 Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA. RP Banks, JW (reprint author), Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA. EM banks20@llnl.gov RI Banks, Jeffrey/A-9718-2012 FU Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; U.S. Department of Energy, Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX Contract/grant sponsor: Lawrence Livermore National Laboratory; contract/grant number: DE-AC52-07NA27344; This study has been supported by Lawrence Livermore National Laboratory under the auspices of the U.S. Department of Energy through contract number DE-AC52-07NA27344. NR 8 TC 0 Z9 0 U1 0 U2 4 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND SN 0271-2091 J9 INT J NUMER METH FL JI Int. J. Numer. Methods Fluids PD FEB 20 PY 2011 VL 65 IS 5 BP 602 EP 608 DI 10.1002/fld.2196 PG 7 WC Computer Science, Interdisciplinary Applications; Mathematics, Interdisciplinary Applications; Mechanics; Physics, Fluids & Plasmas SC Computer Science; Mathematics; Mechanics; Physics GA 715SX UT WOS:000286909000007 ER PT J AU Lay, EH Close, S Colestock, P Bust, G AF Lay, E. H. Close, S. Colestock, P. Bust, G. TI Development and error analysis of nonlinear ionospheric removal algorithm for ionospheric electron density determination using broadband RF data SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID INTERNATIONAL REFERENCE IONOSPHERE; FORTE SATELLITE; POLARIZATION OBSERVATIONS; VHF SIGNALS; PROPAGATION; PARAMETERS AB The first documented, empirical comparisons are provided of four methods to retrieve total electron content (TEC) that use broadband, impulsive events detected by satellite in the lower very high frequency range (20-150 MHz). The four TEC retrieval methods are the quasi-longitudinal approximation (i.e., Taylor expansion) of the Appleton-Hartree (A-H) dispersion relation to the first and second orders, as well as the nonlinear ionospheric removal algorithm (NIRA) that utilizes the A-H dispersion equation directly to model the propagation of an electromagnetic wave through the ionosphere. NIRA solves not only for TEC between the ground source and satellite, but also for higher-order ionospheric terms, such as electron density, ionospheric thickness, and angle between wave vector and magnetic field. Regimes of validity for each TEC retrieval method are analyzed by comparison of the parameters retrieved from synthetic data with a known ionosphere and from RF FORTE satellite data measurements of a ground-based broadband transmitter. Results include a comparison between TEC and infinite frequency time of arrival (to) determined by NIRA and determined by using the first-and second-order terms from the Taylor expansion of the A-H equation. Plasma density, ionospheric thickness, and angle between magnetic field and wave vector as determined by the two NIRA methods are also compared. C1 [Lay, E. H.; Colestock, P.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Close, S.] Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USA. [Bust, G.] ASTRA, San Antonio, TX 78249 USA. RP Lay, EH (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM elay@lanl.gov OI Lay, Erin/0000-0002-1310-9035 NR 17 TC 3 Z9 3 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD FEB 19 PY 2011 VL 116 AR A02316 DI 10.1029/2010JA015862 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 723VG UT WOS:000287534800001 ER PT J AU Berkery, JW Sabbagh, SA Betti, R Bell, RE Gerhardt, SP LeBlanc, BP Yuh, H AF Berkery, J. W. Sabbagh, S. A. Betti, R. Bell, R. E. Gerhardt, S. P. LeBlanc, B. P. Yuh, H. TI Effect of Collisionality on Kinetic Stability of the Resistive Wall Mode SO PHYSICAL REVIEW LETTERS LA English DT Article ID HIGH-BETA; TOKAMAKS; PLASMAS; STABILIZATION; ROTATION; PHYSICS; NSTX AB The impact of collisionless, energy-independent, and energy-dependent collisionality models on the kinetic stability of the resistive wall mode is examined for high pressure plasmas in the National Spherical Torus Experiment. Future devices will have decreased collisionality, which previous stability models predict to be universally destabilizing. In contrast, in kinetic theory reduced ion-ion collisions are shown to lead to a significant stability increase when the plasma rotation frequency is in a stabilizing resonance with the ion precession drift frequency. When the plasma is in a reduced stability state with rotation in between resonances, collisionality will have little effect on stability. C1 [Berkery, J. W.; Sabbagh, S. A.] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. [Betti, R.; Bell, R. E.; Gerhardt, S. P.; LeBlanc, B. P.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Yuh, H.] Nova Photon Inc, Princeton, NJ 08543 USA. RP Berkery, JW (reprint author), Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA. FU U.S. Department of Energy [DE-FG02-99ER54524, DE-AC02-09CH11466, DE-FG02-93ER54215] FX Supported by the U.S. Department of Energy under Contracts No. DE-FG02-99ER54524, No. DE-AC02-09CH11466, and No. DE-FG02-93ER54215. NR 20 TC 22 Z9 22 U1 0 U2 1 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 FEB 18 PY 2011 VL 106 IS 7 AR 075004 DI 10.1103/PhysRevLett.106.075004 PG 4 WC Physics, Multidisciplinary SC Physics GA 769JU UT WOS:000291009500002 PM 21405523 ER PT J AU Berlijn, T Volja, D Ku, W AF Berlijn, Tom Volja, Dmitri Ku, Wei TI Can Disorder Alone Destroy the e '(g) Hole Pockets of NaxCoO2? A Wannier Function Based First-Principles Method for Disordered Systems SO PHYSICAL REVIEW LETTERS LA English DT Article ID SUPERCONDUCTIVITY AB We investigate from first principles the proposed destruction of the controversial e'(g) pockets in the Fermi surface of NaxCoO2 due to Na disorder, by calculating its k-dependent configuration-averaged spectral function < A(k, omega)>. To this end, a Wannier function-based method is developed that treats the effects of disorder beyond the mean field. Remarkable spectral broadenings of order similar to 1 eV are found for the oxygen orbitals, possibly explaining their absence in the experiments. In contradiction with the current claim, however, the e'(g) pockets remain almost perfectly coherent. The developed method is expected to also generate exciting opportunities in the study of the countless functional materials that owe their important electronic properties to disordered dopants. C1 [Berlijn, Tom; Volja, Dmitri; Ku, Wei] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11790 USA. [Berlijn, Tom; Volja, Dmitri; Ku, Wei] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA. RP Berlijn, T (reprint author), SUNY Stony Brook, Dept Phys, Stony Brook, NY 11790 USA. RI Berlijn, Tom/A-3859-2016 OI Berlijn, Tom/0000-0002-1001-2238 FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division; DOE-CMSN FX This work was supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division, and DOE-CMSN. NR 26 TC 27 Z9 27 U1 0 U2 12 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 FEB 18 PY 2011 VL 106 IS 7 AR 077005 DI 10.1103/PhysRevLett.106.077005 PG 4 WC Physics, Multidisciplinary SC Physics GA 769JU UT WOS:000291009500007 PM 21405536 ER PT J AU Tscherbul, TV Yu, HG Dalgarno, A AF Tscherbul, T. V. Yu, H. -G. Dalgarno, A. TI Sympathetic Cooling of Polyatomic Molecules with S-State Atoms in a Magnetic Trap SO PHYSICAL REVIEW LETTERS LA English DT Article ID AMMONIA MOLECULES; METHYLENE AB We present a rigorous theoretical study of low-temperature collisions of polyatomic molecular radicals with (1)S(0) atoms in the presence of an external magnetic field. Accurate quantum scattering calculations based on ab initio and scaled interaction potentials show that collision-induced spin relaxation of the prototypical organic molecule CH(2)((X) over tilde (3)B(1)) (methylene) and nine other triatomic radicals in cold (3)He gas occurs at a slow rate, demonstrating that cryogenic buffer-gas cooling and magnetic trapping of these molecules is feasible with current technology. Our calculations further suggest that it may be possible to create ultracold gases of polyatomic molecules by sympathetic cooling with alkaline-earth atoms in a magnetic trap. C1 [Tscherbul, T. V.; Dalgarno, A.] Harvard MIT Ctr Ultracold Atoms, Cambridge, MA 02138 USA. [Tscherbul, T. V.; Dalgarno, A.] Harvard Smithsonian Ctr Astrophys, Inst Theoret Atom Mol & Opt Phys, Cambridge, MA 02138 USA. [Yu, H. -G.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Tscherbul, TV (reprint author), Harvard MIT Ctr Ultracold Atoms, Cambridge, MA 02138 USA. RI Tscherbul, Timur/K-3286-2014; Yu, Hua-Gen/N-7339-2015 OI Tscherbul, Timur/0000-0001-5689-040X; FU NSF FX We thank G. E. Hall and J. M. Doyle for discussions. This work was supported by NSF grants to the Harvard-MIT CUA and ITAMP at Harvard University and the Smithsonian Astrophysical Observatory. NR 24 TC 23 Z9 23 U1 1 U2 10 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 FEB 18 PY 2011 VL 106 IS 7 AR 073201 DI 10.1103/PhysRevLett.106.073201 PG 4 WC Physics, Multidisciplinary SC Physics GA 769JU UT WOS:000291009500001 PM 21405515 ER PT J AU Nocek, B Stein, AJ Jedrzejczak, R Cuff, ME Li, H Volkart, L Joachimiak, A AF Nocek, B. Stein, A. J. Jedrzejczak, R. Cuff, M. E. Li, H. Volkart, L. Joachimiak, A. TI Structural Studies of ROK Fructokinase YdhR from Bacillus subtilis: Insights into Substrate Binding and Fructose Specificity SO JOURNAL OF MOLECULAR BIOLOGY LA English DT Article DE fructokinase; ROK family; metal dependent; ADP and D-fructose binding; reductive methylation ID ATP-DEPENDENT GLUCOKINASE; SITE-DIRECTED MUTAGENESIS; HUMAN BRAIN HEXOKINASE; ELECTRON-DENSITY MAPS; CRYSTAL-STRUCTURE; ESCHERICHIA-COLI; PROTEIN-STRUCTURE; HIGH-THROUGHPUT; SUGAR KINASES; REDUCTIVE METHYLATION AB The main pathway of bacterial sugar phosphorylation utilizes specific phosphoenolpyruvate phosphotransferase system (PTS) enzymes. In addition to the classic PTS system, a PTS-independent secondary system has been described in which nucleotide-dependent sugar kinases are used for monosaccharide phosphorylation. Fructokinase (FK), which phosphorylates D-fructose with ATP as a cofactor, has been shown to be a member of this secondary system. Bioinformatic analysis has shown that FK is a member of the "ROK" (bacterial Repressors, uncharacterized Open reading frames, and sugar Kinases) sequence family. In this study, we report the crystal structures of ROK FK from Bacillus subtilis (YdhR) (a) apo and in the presence of (b) ADP and (c) ADP/D-fructose. All structures show that YdhR is a homodimer with a monomer composed of two similar alpha/beta domains forming a large cleft between domains that bind ADP and D-fructose. Enzymatic activity assays support YdhR function as an ATP-dependent fructose kinase. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Nocek, B.; Stein, A. J.; Jedrzejczak, R.; Cuff, M. E.; Li, H.; Volkart, L.; Joachimiak, A.] Argonne Natl Lab, Midwest Ctr Struct Genom, Argonne, IL 60439 USA. [Nocek, B.; Stein, A. J.; Jedrzejczak, R.; Cuff, M. E.; Li, H.; Volkart, L.; Joachimiak, A.] Argonne Natl Lab, Struct Biol Ctr, Argonne, IL 60439 USA. [Joachimiak, A.] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA. RP Joachimiak, A (reprint author), Argonne Natl Lab, Midwest Ctr Struct Genom, 9700 S Cass Ave,Bldg 202, Argonne, IL 60439 USA. EM andrzejj@anl.gov FU National Institutes of Health [GM074942]; U.S. Department of Energy, Office of Biological and Environmental Research [DE-AC02-06CH11357]; U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX We wish to thank all the members of the Structural Biology Center at Argonne National Laboratory for their help in conducting these experiments. This work was supported by National Institutes of Health grant GM074942 and by the U.S. Department of Energy, Office of Biological and Environmental Research, under contract DE-AC02-06CH11357. The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"). Argonne, a U.S. Department of Energy Office of Science laboratory, is operated under contract no. DE-AC02-06CH11357. The U.S. Government retains for itself, and others acting on its behalf, a paid-up nonexclusive, irrevocable worldwide license in said article to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by or on behalf of the Government. NR 65 TC 9 Z9 9 U1 2 U2 3 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0022-2836 J9 J MOL BIOL JI J. Mol. Biol. PD FEB 18 PY 2011 VL 406 IS 2 BP 325 EP 342 DI 10.1016/j.jmb.2010.12.021 PG 18 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 762SJ UT WOS:000290501100008 PM 21185308 ER PT J AU Colesniuc, CN Biswas, RR Hevia, SA Balatsky, AV Schuller, IK AF Colesniuc, Corneliu N. Biswas, Rudro R. Hevia, Samuel A. Balatsky, Alexander V. Schuller, Ivan K. TI Exponential behavior of the Ohmic transport in organic films SO PHYSICAL REVIEW B LA English DT Article ID PHTHALOCYANINE THIN-FILMS; LIGHT-EMITTING-DIODES; CONDUCTION; MOLECULES; SEMICONDUCTORS; VINYLENE); DEVICES; GROWTH; OXYGEN AB An exponential dependence of conductance on thickness and temperature was found in the low-voltage, Ohmic regime of copper (CuPc) and cobalt (CoPc) phthalocyanine, sandwiched between palladium and gold electrodes unlike ever claimed in organic materials. To assure cleanliness and integrity of the electrode-phthalocyanine interface, the devices were prepared in situ, using organic molecular beam deposition with a floating shadow mask. The dc transport measurements in a wide temperature and thickness range show that (i) the low-voltage J-V curve is linear, with current increasing sharply at higher voltages, (ii) the low-voltage conductance increases exponentially with temperature, and (iii) it decreases exponentially with film thickness. A comparison with conventional models fails to explain all the data with a single set of parameters. On the other hand, a model outlined here, which incorporates tunneling between localized states with thermally induced overlap, agrees with the data and decouples the contributions to conductance from the electrode-film interface and the bulk of the film. C1 [Colesniuc, Corneliu N.; Hevia, Samuel A.; Schuller, Ivan K.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Colesniuc, Corneliu N.; Hevia, Samuel A.; Schuller, Ivan K.] Univ Calif San Diego, Ctr Adv Nanotechnol, La Jolla, CA 92093 USA. [Biswas, Rudro R.] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA. [Hevia, Samuel A.] Pontificia Univ Catolica Chile, Fac Fis, Santiago 6904411, Chile. [Balatsky, Alexander V.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Balatsky, Alexander V.] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. RP Colesniuc, CN (reprint author), Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. EM ccoles@physics.ucsd.edu FU AFOSR STTR; DOE [DE-AC52-06NA25396]; UCOP [T027]; CONICYT foundation FX C. N. Colesniuc acknowledges Professor M. Di Ventra for helpful discussions, and Dr. B. Fruhberger and Professor A. Sharoni for help with the sample fabrication and data acquisition. We thank Professor M. M. Fogler for critical reading of the manuscript and criticism of the ideas presented here. Work was supported by an AFOSR STTR contract and the DOE under Contract No. DE-AC52-06NA25396, the UCOP funds T027, and by the UCOP program on carbon nanostructures. S. A. Hevia also acknowledges support from the CONICYT foundation. NR 27 TC 9 Z9 9 U1 3 U2 9 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 18 PY 2011 VL 83 IS 8 AR 085414 DI 10.1103/PhysRevB.83.085414 PG 7 WC Physics, Condensed Matter SC Physics GA 723CY UT WOS:000287485000002 ER PT J AU Adare, A Afanasiev, S Aidala, C Ajitanand, NN Akiba, Y Al-Bataineh, H Alexander, J Al-Jamel, A Angerami, A Aoki, K Apadula, N Aphecetche, L Aramaki, Y Armendariz, R Aronson, SH Asai, J Atomssa, ET Averbeck, R Awes, TC Azmoun, B Babintsev, V Bai, M Baksay, G Baksay, L Baldisseri, A Barish, KN Barnes, PD Bassalleck, B Basye, AT Bathe, S Batsouli, S Baublis, V Bauer, F Baumann, C Bazilevsky, A Belikov, S Belmont, R Bennett, R Berdnikov, A Berdnikov, Y Bhom, JH Bickley, AA Bjorndal, MT Blau, DS Boissevain, JG Bok, JS Borel, H Borggren, N Boyle, K Brooks, ML Brown, DS Bucher, D Buesching, H Bumazhnov, V Bunce, G Burward-Hoy, JM Butsyk, S Campbell, S Caringi, A Chai, JS Chang, BS Charvet, JL Chen, CH Chernichenko, S Chiba, J Chi, CY Chiu, M Choi, IJ Choi, JB Choudhury, RK Christiansen, P Chujo, T Chung, P Churyn, A Chvala, O Cianciolo, V Citron, Z Cleven, CR Cobigo, Y Cole, BA Comets, MP del Valle, ZC Connors, M Constantin, P Csanad, M Csorgo, T Dahms, T Dairaku, S Danchev, I Das, K Datta, A David, G Dayananda, MK Deaton, MB Dehmelt, K Delagrange, H Denisov, A d'Enterria, D Deshpande, A Desmond, EJ Dharmawardane, KV Dietzsch, O Dion, A Donadelli, M D'Orazio, L Drachenberg, JL Drapier, O Drees, A Drees, KA Dubey, AK Durham, JM Durum, A Dutta, D Dzhordzhadze, V Edwards, S Efremenko, YV Egdemir, J Ellinghaus, F Emam, WS Engelmore, T Enokizono, A En'yo, H Espagnon, B Esumi, S Eyser, KO Fadem, B Fields, DE Finger, M Finger, M Fleuret, F Fokin, SL Forestier, B Fraenkel, Z Frantz, JE Franz, A Frawley, AD Fujiwara, K Fukao, Y Fung, SY Fusayasu, T Gadrat, S Garishvili, I Gastineau, F Germain, M Glenn, A Gong, H Gonin, M Gosset, J Goto, Y de Cassagnac, RG Grau, N Greene, SV Grim, G Perdekamp, MG Gunji, T Gustafsson, HA Hachiya, T Henni, AH Haegemann, C Haggerty, JS Hagiwara, MN Hahn, KI Hamagaki, H Hamblen, J Hanks, J Han, R 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CA PHENIX Collaboration TI Nuclear modification factors of phi mesons in d plus Au, Cu plus Cu, and Au plus Au collisions at root s(NN)=200 GeV SO PHYSICAL REVIEW C LA English DT Article ID LARGE TRANSVERSE-MOMENTUM; D+AU COLLISIONS; HADRONS; STATISTICS; ENERGY; DISTRIBUTIONS; DEPENDENCE; MATTER; P+P AB The PHENIX experiment at the Relativistic Heavy Ion Collider has performed systematic measurements of phi meson production in the K+K- decay channel at midrapidity in p + p, d + Au, Cu + Cu, and Au + Au collisions at root s(NN) = 200 GeV. Results are presented on the phi invariant yield and the nuclear modification factor R-AA for Au + Au and Cu + Cu, and R-dA for d + Au collisions, studied as a function of transverse momentum (1 < p(T) < 7 GeV/c) and centrality. In central and midcentral Au + Au collisions, the R-AA of phi exhibits a suppression relative to expectations from binary scaled p + p results. The amount of suppression is smaller than that of the pi(0) and the. in the intermediate p(T) range (2-5 GeV/c), whereas, at higher p(T), the phi, pi(0), and. show similar suppression. The baryon (proton and antiproton) excess observed in central Au + Au collisions at intermediate p(T) is not observed for the phi meson despite the similar masses of the proton and the phi. This suggests that the excess is linked to the number of valence quarks in the hadron rather than its mass. The difference gradually disappears with decreasing centrality, and, for peripheral collisions, the R-AA values for both particle species are consistent with binary scaling. Cu + Cu collisions show the same yield and suppression as Au + Au collisions for the same number of N-part. The R-dA of phi shows no evidence for cold nuclear effects within uncertainties. C1 [Adare, A.; Bickley, A. A.; Ellinghaus, F.; Glenn, A.; Kelly, S.; Kinney, E.; Levy, L. A. Linden; Nagle, J. L.; Rosen, C. A.; Seele, J.; Wysocki, M.] Univ Colorado, Boulder, CO 80309 USA. [Basye, A. T.; Deaton, M. B.; Drachenberg, J. L.; Hagiwara, M. N.; Isenhower, D.; Isenhower, L.; Jones, T.; Jumper, D. S.; Omiwade, O. O.; Smith, W. C.; Thomas, D.; Towell, R. S.; Wright, R. M.] Abilene Christian Univ, Abilene, TX 79699 USA. [Chiu, M.; Mishra, M.; Singh, B. K.; Singh, C. P.; Singh, V.; Tarafdar, S.; Tuli, S. K.] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India. [Choudhury, R. K.; Dutta, D.; Mohanty, A. K.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Bai, M.; Drees, K. A.; Makdisi, Y. I.] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA. [Aronson, S. H.; Azmoun, B.; Bazilevsky, A.; Belikov, S.; Buesching, H.; Bunce, G.; David, G.; Desmond, E. J.; Franz, A.; Haggerty, J. S.; Harvey, M.; Jia, J.; Johnson, B. M.; Kistenev, E.; Kroon, P. J.; Lynch, D.; Makdisi, Y. I.; Milov, A.; Mioduszewski, S.; Mitchell, J. T.; Morrison, D. P.; Nouicer, R.; O'Brien, E.; Pak, R.; Pinkenburg, C.; Pisani, R. P.; Purschke, M. L.; Sakaguchi, T.; Sato, S.; Shea, T. K.; Sickles, A.; Sourikova, I. V.; Stoll, S. P.; Sukhanov, A.; Tannenbaum, M. J.; Vale, C.; White, S. N.; Woody, C. L.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Barish, K. N.; Bathe, S.; Bauer, F.; Chvala, O.; Dzhordzhadze, V.; Emam, W. S.; Eyser, K. O.; Fung, S. Y.; Hester, T.; Kotchetkov, D.; Li, X. H.; Morreale, A.; Rolnick, S. D.; Sedgwick, K.; Seto, R.; Xie, W.; Yasin, Z.] Univ Calif Riverside, Riverside, CA 92521 USA. [Finger, M., Jr.; Finger, M.; Kubart, J.; Masek, L.; Mikes, P.; Slunecka, M.] Charles Univ Prague, CZ-11636 Prague, Czech Republic. [Choi, J. B.; Kim, E. J.] Chonbuk Natl Univ, Jeonju 561756, South Korea. [Li, X.; Zhou, S.] China Inst Atom Energy CIAE, Beijing, Peoples R China. [Aramaki, Y.; Gunji, T.; Hamagaki, H.; Hayano, R.; Isobe, T.; Kajihara, F.; Kametani, S.; Kurihara, N.; Morino, Y.; Oda, S. 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L.; Cobigo, Y.; Gosset, J.; Pereira, H.; Silvestre, C.; Staley, F.] CEA Saclay, F-91191 Gif Sur Yvette, France. [Tarjan, P.; Vertesi, R.] Univ Debrecen, H-4010 Debrecen, Hungary. [Csanad, M.; Kiss, A.] Eotvos Lorand Univ, ELTE, H-1117 Budapest, Hungary. [Hahn, K. I.; Kim, A.; Lee, J.; Nam, S.; Park, I. H.] Ewha Womans Univ, Seoul 120750, South Korea. [Baksay, G.; Baksay, L.; Dehmelt, K.; Hohlmann, M.; Rembeczki, S.] Florida Inst Technol, Melbourne, FL 32901 USA. [Das, K.; Edwards, S.; Frawley, A. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Cleven, C. R.; Dayananda, M. K.; He, X.; Mishra, G. C.; Oakley, C.; Qu, H.; Ying, J.] Georgia State Univ, Atlanta, GA 30303 USA. [Enokizono, A.; Hachiya, T.; Harada, H.; Haruna, K.; Homma, K.; Horaguchi, T.; Iwanaga, Y.; Kijima, K. M.; Nakamiya, Y.; Nakamura, T.; Nihashi, M.; Ouchida, M.; Sakata, H.; Shigaki, K.; Sugitate, T.; Torii, H.; Tsuchimoto, Y.; Watanabe, D.; Yamaura, K.] Hiroshima Univ, Higashihiroshima 7398526, Japan. [Babintsev, V.; Bumazhnov, V.; Chernichenko, S.; Churyn, A.; Denisov, A.; Durum, A.; Kochetkov, V.; Semenov, V.; Shein, I.; Soldatov, A.; Tyurin, N.; Yanovich, A.] IHEP Protvino, Inst High Energy Phys, State Res Ctr Russian Federat, RU-142281 Protvino, Russia. [Chiu, M.; Perdekamp, M. Grosse; Hiejima, H.; Kim, Y. -J.; Koster, J.; McCain, M. C.; Meredith, B.; Peng, J. -C.; Seidl, R.; Veicht, A.; Yang, R.] Univ Illinois, Urbana, IL 61801 USA. [Kubart, J.; Masek, L.; Mikes, P.; Ruzicka, P.; Tomasek, L.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, CZ-18221 Prague 8, Czech Republic. [Belikov, S.; Constantin, P.; Dion, A.; Grau, N.; Hill, J. C.; Kempel, T.; Lajoie, J. G.; Lebedev, A.; Ogilvie, C. A.; Pei, H.; Rak, J.; Rosati, M.; Silva, C. L.; Skutnik, S.; Vale, C.; Wei, F.] Iowa State Univ, Ames, IA 50011 USA. 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[Akiba, Y.; Aoki, K.; Dairaku, S.; En'yo, H.; Fujiwara, K.; Fukao, Y.; Goto, Y.; Hachiya, T.; Hasuko, K.; Heuser, J. M.; Horaguchi, T.; Ichihara, T.; Ichimiya, R.; Iinuma, H.; Imai, K.; Inoue, Y.; Ishihara, M.; Kajihara, F.; Kamihara, N.; Kanou, H.; Kasai, M.; Kawashima, M.; Kiyomichi, A.; Kurita, K.; Kurosawa, M.; Mao, Y.; Murata, J.; Nakagawa, I.; Nakamura, T.; Nakano, K.; Ohnishi, H.; Onuki, Y.; Rykov, V. L.; Saito, N.; Sakashita, K.; Sato, H. D.; Shibata, T. -A.; Shoji, K.; Taketani, A.; Tanida, K.; Togawa, M.; Tojo, J.; Torii, H.; Tsuchimoto, Y.; Wagner, M.; Watanabe, Y.; Yokkaichi, S.] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan. [Akiba, Y.; Asai, J.; Bunce, G.; Deshpande, A.; En'yo, H.; Fields, D. E.; Goto, Y.; Perdekamp, M. 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H.; Citron, Z.; Connors, M.; Dahms, T.; Deshpande, A.; Dion, A.; Drees, A.; Durham, J. M.; Egdemir, J.; Frantz, J. E.; Gong, H.; Hemmick, T. K.; Jacak, B. V.; Kamin, J.; Leckey, S.; Matathias, F.; McCumber, M.; Means, N.; Milov, A.; Nguyen, M.; Pantuev, V.; Petti, R.; Proissl, M.; Purwar, A. K.; Reuter, M.; Sickles, A.; Taneja, S.; Themann, H.; Toia, A.; Walker, D.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Aphecetche, L.; Delagrange, H.; Gastineau, F.; Germain, M.; Henni, A. Hadj] Univ Nantes, CNRS, Ecole Mines Nantes, SUBATECH,IN2P3, F-20722 Nantes, France. [Dzhordzhadze, V.; Garishvili, I.; Glenn, A.; Hamblen, J.; Hornback, D.; Kwon, Y.; Read, K. F.; Sorensen, S. P.] Univ Tennessee, Knoxville, TN 37996 USA. [Horaguchi, T.; Kamihara, N.; Kanou, H.; Nakano, K.; Sakashita, K.; Shibata, T. -A.] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan. 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RP Adare, A (reprint author), Univ Colorado, Boulder, CO 80309 USA. EM jacak@skipper.physics.sunysb.edu RI Yokkaichi, Satoshi/C-6215-2017; Taketani, Atsushi/E-1803-2017; Semenov, Vitaliy/E-9584-2017; Sorensen, Soren /K-1195-2016; Mignerey, Alice/D-6623-2011; seto, richard/G-8467-2011; Csanad, Mate/D-5960-2012; Wei, Feng/F-6808-2012; Csorgo, Tamas/I-4183-2012; Tomasek, Lukas/G-6370-2014; Blau, Dmitry/H-4523-2012; Dahms, Torsten/A-8453-2015; En'yo, Hideto/B-2440-2015; Hayano, Ryugo/F-7889-2012; HAMAGAKI, HIDEKI/G-4899-2014; Durum, Artur/C-3027-2014 OI Taketani, Atsushi/0000-0002-4776-2315; Sorensen, Soren /0000-0002-5595-5643; Tomasek, Lukas/0000-0002-5224-1936; Dahms, Torsten/0000-0003-4274-5476; Hayano, Ryugo/0000-0002-1214-7806; FU Office of Nuclear Physics in the Office of Science of the Department of Energy; National Science Foundation; Abilene Christian University Research Council; Research Foundation of SUNY; College of Arts and Sciences, Vanderbilt University (USA); Ministry of Education, Culture, Sports, Science, and Technology; Japan Society for the Promotion of Science (Japan); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico; Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil); Natural Science Foundation of China (People's Republic of China); Ministry of Education, Youth and Sports (Czech Republic); Centre National de la Recherche Scientifique; Commissariat a l'Energie Atomique; Institut National de Physique Nucleaire et de Physique des Particules (France); Ministry of Industry, Science and Tekhnologies; Bundesministerium fur Bildung und Forschung; Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany); Hungarian National Science Fund, OTKA (Hungary); Department of Atomic Energy and Department of Science and Technology (India); Israel Science Foundation (Israel); National Research Foundation (Korea); Ministry of Education and Science; Russia Academy of Sciences; Federal Agency of Atomic Energy (Russia); VR; Wallenberg Foundation (Sweden); US Civilian Research and Development Foundation for the Independent States of the Former Soviet Union; US-Hungarian Fulbright Foundation for Educational Exchange; US-Israel Binational Science Foundation FX We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (USA), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (People's Republic of China), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat a l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Ministry of Industry, Science and Tekhnologies, Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), Hungarian National Science Fund, OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), National Research Foundation (Korea), Ministry of Education and Science, Russia Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and the Wallenberg Foundation (Sweden), the US Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, the US-Hungarian Fulbright Foundation for Educational Exchange, and the US-Israel Binational Science Foundation. NR 57 TC 31 Z9 32 U1 5 U2 17 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD FEB 18 PY 2011 VL 83 IS 2 AR 024909 DI 10.1103/PhysRevC.83.024909 PG 10 WC Physics, Nuclear SC Physics GA 723DF UT WOS:000287485700004 ER PT J AU McCutchan, EA Lister, CJ Ahn, T Casperson, RJ Heinz, A Ilie, G Qian, J Williams, E Winkler, R Werner, V AF McCutchan, E. A. Lister, C. J. Ahn, T. Casperson, R. J. Heinz, A. Ilie, G. Qian, J. Williams, E. Winkler, R. Werner, V. TI Shape coexistence in Se-72 investigated following the beta decay of Br-72 SO PHYSICAL REVIEW C LA English DT Article ID INTERACTING BOSON MODEL; ISOTOPES; STATE; BAND AB The structure of Se-72 was investigated following the epsilon/beta(+) decay of Br-72 produced in the Ni-58(O-16, pn) reaction at 50 MeV. Using a beam chopping system, off-beam gamma-ray decay data was collected with an array of clover Ge detectors. gamma-gamma coincidence measurements provided a significant modification of the prior level scheme, and gamma-gamma angular correlation measurements allowed spin determinations and multipole mixing ratio extraction. The new information on the non-yrast states was combined with previous in-beam data to investigate the issue of shape coexistence by comparing to various configuration mixing approaches. Clear evidence for shape coexistence is found, with a ground state of modest, or slightly oblate, deformation and a well-deformed prolate shape that would lie at an unperturbed excitation of 875 keV. The shape mixing is near complete at low spin. C1 [McCutchan, E. A.; Lister, C. J.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Ahn, T.; Casperson, R. J.; Heinz, A.; Ilie, G.; Qian, J.; Williams, E.; Winkler, R.; Werner, V.] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA. [Ilie, G.] Natl Inst Phys & Nucl Engn, Bucharest, Romania. RP McCutchan, EA (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Qian, Jing/F-9639-2010; Heinz, Andreas/E-3191-2014; Williams, Elizabeth/D-3442-2014; Ahn, Tan/C-9158-2016; Werner, Volker/C-1181-2017 OI Ahn, Tan/0000-0003-2249-7399; Werner, Volker/0000-0003-4001-0150 FU US DOE [DE-FG02-91ER-40609]; DOE Office of Nuclear Physics [DE-AC02-06CH11357] FX This work was supported by US DOE Grant No. DE-FG02-91ER-40609 and by the DOE Office of Nuclear Physics under Contract No. DE-AC02-06CH11357. NR 24 TC 6 Z9 6 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD FEB 18 PY 2011 VL 83 IS 2 AR 024310 DI 10.1103/PhysRevC.83.024310 PG 12 WC Physics, Nuclear SC Physics GA 723DF UT WOS:000287485700002 ER PT J AU Carena, M Draper, P Shah, NR Wagner, CEM AF Carena, Marcela Draper, Patrick Shah, Nausheen R. Wagner, Carlos E. M. TI Supersymmetry-breaking parameters from renormalization group invariants at the LHC SO PHYSICAL REVIEW D LA English DT Article ID SPARTICLE MASS-SPECTRUM; LARGE TAN-BETA; SUPERGRAVITY; COUPLINGS; PHYSICS; MSSM AB We study renormalization group invariant (RGI) quantities in the minimal supersymmetric standard model and show that they are a powerful and simple instrument for testing high-scale models of supersymmetry (SUSY) breaking. For illustration, we analyze the frameworks of minimal and general gauge-mediated (MGM and GGM) SUSY breaking, with additional arbitrary soft Higgs mass parameters at the messenger scale. We show that if a gaugino and two first generation sfermion soft masses are determined at the LHC, the RGIs lead to MGM sum rules that yield accurate predictions for the other gaugino and first generation soft masses. RGIs can also be used to reconstruct the fundamental MGM parameters (including the messenger scale), calculate the hypercharge D-term, and find relationships among the third generation and Higgs soft masses. We then study the extent to which measurements of the full first generation spectrum at the LHC may distinguish different SUSY-breaking scenarios. In the case of the MGM model, although most deviations violate the sum rules by more than estimated experimental errors, we find a one-parameter family of GGM models that satisfy the constraints and produce the same first generation spectrum. The GGM-MGM degeneracy is lifted by differences in the third generation masses and the messenger scales. C1 [Carena, Marcela; Shah, Nausheen R.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Carena, Marcela; Draper, Patrick; Wagner, Carlos E. M.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Wagner, Carlos E. M.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. [Wagner, Carlos E. M.] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA. RP Carena, M (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. FU U.S. Department of Energy [DE-AC02-07CH11359]; U.S. Department of Energy (DOE), Division of HEP [DE-AC02-06CH11357]; DOE [DE-FGO2-96-ER40956] FX We would like to thank Matt Strassler for useful comments. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. Work at ANL is supported in part by the U.S. Department of Energy (DOE), Division of HEP, Contract No. DE-AC02-06CH11357. This work was supported in part by the DOE under Task TeV Contract No. DE-FGO2-96-ER40956. M. C., N. S., and C. W. would like to thank the Aspen Center for Physics, where part of this work was done. NR 53 TC 8 Z9 8 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 18 PY 2011 VL 83 IS 3 AR 035014 DI 10.1103/PhysRevD.83.035014 PG 15 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 723DO UT WOS:000287486700005 ER PT J AU Dumitru, A Guo, Y Hidaka, Y Altes, CPK Pisarski, RD AF Dumitru, Adrian Guo, Yun Hidaka, Yoshimasa Altes, Christiaan P. Korthals Pisarski, Robert D. TI How wide is the transition to deconfinement? SO PHYSICAL REVIEW D LA English DT Article ID T-HOOFT LOOP; LATTICE GAUGE-THEORY; YANG-MILLS THEORY; HOT QCD; POLYAKOV LOOP; INTERFACE TENSION; PHASE-TRANSITION; DOMAIN-WALLS; CUBIC ORDER; SU(N) AB Pure SU(3) glue theories exhibit a deconfining phase transition at a nonzero temperature, T-c. Using lattice measurements of the pressure, we develop a simple matrix model to describe the transition region, when T >= T-c. This model, which involves three parameters, is used to compute the behavior of the 't Hooft loop. There is a Higgs phase in this region, where off-diagonal color modes are heavy, and diagonal modes are light. Lattice measurements of the latter suggest that the transition region is narrow, extending only to about similar to 1.2T(c). This is in stark contrast to lattice measurements of the renormalized Polyakov loop, which indicates a much wider width. The possible implications for the differences in heavy ion collisions between the Relativistic Heavy Ion Collider and the LHC are discussed. C1 [Dumitru, Adrian] Baruch Coll, Dept Nat Sci, New York, NY 10010 USA. [Dumitru, Adrian] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Guo, Yun] Brandon Univ, Dept Phys, Brandon, MB R7A 6A9, Canada. [Guo, Yun] Winnipeg Inst Theoret Phys, Winnipeg, MB, Canada. [Hidaka, Yoshimasa] Kyoto Univ, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan. [Altes, Christiaan P. Korthals] CNRS, Ctr Phys Theor, F-13288 Marseille, France. [Altes, Christiaan P. Korthals] Nikhef Theory Grp, NL-1098 XG Amsterdam, Netherlands. [Pisarski, Robert D.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Dumitru, A (reprint author), Baruch Coll, Dept Nat Sci, 17 Lexington Ave, New York, NY 10010 USA. FU U.S. Department of Energy [DE-FG02-09ER41620, DE-AC02-98CH10886]; PSC-CUNY [63382-00 41]; Natural Sciences and Engineering Research Council of Canada; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan; Alexander von Humboldt Foundation FX We thank A. Bazavov, P. de Forcrand, O. Kaczmarek, F. Karsch, J. Liao, M. Pepe, P. Petreczky, and E. Shuryak for discussions and comments. The research of A. D. was supported by the U.S. Department of Energy under Contract No. DE-FG02-09ER41620, and by PSC-CUNY Research Grant No. 63382-00 41; of Y. G., in part by the Natural Sciences and Engineering Research Council of Canada; of Y. H., by the Grant-in-Aid for the Global COE Program, "The Next Generation of Physics, Spun from Universality and Emergence," from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan; of R. D. P., by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886. R. D. P. also thanks the Alexander von Humboldt Foundation for their support. NR 116 TC 39 Z9 39 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 18 PY 2011 VL 83 IS 3 AR 034022 DI 10.1103/PhysRevD.83.034022 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 723DO UT WOS:000287486700002 ER PT J AU Nesbit, J Norman, C Konstantinov, I Stefanov, Y Kovalevsky, A Voronin, Y Lee, I Ahn, M Marcotte, E Rhee, SY Heras, J Elliot, K Fayyaz, M Crnokrak, P Darling, SB Sibener, SJ Belliveau, RR Hoffman, KL Wood, RJ Pope, D Dick, G Bradley, S Kelley, S Chourasia, A Mcquinn, E Minster, B Schulze, J Cox, TJ Berry, D Ellisman, M Tetaz, F AF Nesbit, Jeff Norman, Colin Konstantinov, Ivan Stefanov, Yury Kovalevsky, Aleksander Voronin, Yegor Lee, Insuk Ahn, Michael Marcotte, Edward Rhee, Seung Yon Heras, Jonathan Elliot, Kandis Fayyaz, Mo Crnokrak, Peter Darling, Seth B. Sibener, Steven J. Belliveau, Robert Rock Hoffman, Katie L. Wood, Robert J. Pope, Damian Dick, Greg Bradley, Sean Kelley, Steve Chourasia, Amit Mcquinn, Emmett Minster, Bernard Schulze, Jurgen Cox, Thomas J. Berry, Drew Ellisman, Mark Tetaz, Francois TI 2010 VISUALIZATION CHALLENGE SO SCIENCE LA English DT Editorial Material C1 [Elliot, Kandis; Fayyaz, Mo] Univ Wisconsin, Madison, WI 53706 USA. [Darling, Seth B.] Argonne Natl Lab, Argonne, IL 60439 USA. [Sibener, Steven J.] Univ Chicago, Chicago, IL 60637 USA. [Hoffman, Katie L.; Wood, Robert J.] Harvard Univ, Cambridge, MA 02138 USA. [Chourasia, Amit; Mcquinn, Emmett; Minster, Bernard; Schulze, Jurgen] UCSD, San Diego Supercomp Ctr, San Diego, CA USA. [Berry, Drew; Ellisman, Mark; Tetaz, Francois] Walter & Eliza Hall Inst Med Res, Parkville, Vic, Australia. NR 0 TC 1 Z9 1 U1 1 U2 15 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD FEB 18 PY 2011 VL 331 IS 6019 BP 847 EP 856 DI 10.1126/science.331.6019.847 PG 10 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 722SO UT WOS:000287455100023 PM 21330509 ER PT J AU Jang, HW Felker, DA Bark, CW Wang, Y Niranjan, MK Nelson, CT Zhang, Y Su, D Folkman, CM Baek, SH Lee, S Janicka, K Zhu, Y Pan, XQ Fong, DD Tsymbal, EY Rzchowski, MS Eom, CB AF Jang, H. W. Felker, D. A. Bark, C. W. Wang, Y. Niranjan, M. K. Nelson, C. T. Zhang, Y. Su, D. Folkman, C. M. Baek, S. H. Lee, S. Janicka, K. Zhu, Y. Pan, X. Q. Fong, D. D. Tsymbal, E. Y. Rzchowski, M. S. Eom, C. B. TI Metallic and Insulating Oxide Interfaces Controlled by Electronic Correlations SO SCIENCE LA English DT Article ID HETEROSTRUCTURE; SUPERLATTICES; TRANSITIONS AB The formation of two-dimensional electron gases (2DEGs) at complex oxide interfaces is directly influenced by the oxide electronic properties. We investigated how local electron correlations control the 2DEG by inserting a single atomic layer of a rare-earth oxide (RO) [(R is lanthanum (La), praseodymium (Pr), neodymium (Nd), samarium (Sm), or yttrium (Y)] into an epitaxial strontium titanate oxide (SrTiO3) matrix using pulsed-laser deposition with atomic layer control. We find that structures with La, Pr, and Nd ions result in conducting 2DEGs at the inserted layer, whereas the structures with Sm or Y ions are insulating. Our local spectroscopic and theoretical results indicate that the interfacial conductivity is dependent on electronic correlations that decay spatially into the SrTiO3 matrix. Such correlation effects can lead to new functionalities in designed heterostructures. C1 [Jang, H. W.; Bark, C. W.; Folkman, C. M.; Baek, S. H.; Lee, S.; Eom, C. B.] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA. [Felker, D. A.; Rzchowski, M. S.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. [Wang, Y.; Niranjan, M. K.; Janicka, K.; Tsymbal, E. Y.] Univ Nebraska, Dept Phys & Astron, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA. [Nelson, C. T.; Zhang, Y.; Pan, X. Q.] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA. [Zhang, Y.] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China. [Zhang, Y.] Nanjing Univ, Dept Mat Sci & Engn, Nanjing 210093, Peoples R China. [Su, D.; Zhu, Y.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Fong, D. D.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Eom, CB (reprint author), Univ Wisconsin, Dept Mat Sci & Engn, 1509 Univ Ave, Madison, WI 53706 USA. EM eom@engr.wisc.edu RI Wang, Yong/F-7019-2010; Lee, Sanghan/C-8876-2012; Su, Dong/A-8233-2013; Baek, Seung-Hyub/B-9189-2013; Tsymbal, Evgeny/G-3493-2013; Bark, Chung Wung/B-9534-2014; Eom, Chang-Beom/I-5567-2014; Jang, Ho Won/D-9866-2011; OI Wang, Yong/0000-0002-0248-9757; Su, Dong/0000-0002-1921-6683; Bark, Chung Wung/0000-0002-9394-4240; Jang, Ho Won/0000-0002-6952-7359; Lee, Sanghan/0000-0002-5807-864X FU National Science Foundation [DMR-0906443, EPS-1010674]; David and Lucile Packard Fellowship; Materials Research Science and Engineering Center (NSF) [DMR-0820521]; Nanoelectronics Research Initiative of the Semiconductor Research Corporation; Nebraska Research Initiative; U.S. Department of Energy (DOE) [DE-FG02-07ER46416]; National Center for Electron Microscopy at Lawrence Berkeley National Laboratory for their support under DOE [DE-AC02-05CH11231]; DOE Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Center for Functional Nanomaterials [DE-AC02-98CH10886]; DOE/BES/MSE FX We thank D. G. Schlom and D. A. Muller for fruitful discussions. This work was supported by the National Science Foundation under grant DMR-0906443 and a David and Lucile Packard Fellowship (C.B.E.). The research at University of Nebraska was supported by the Materials Research Science and Engineering Center (NSF grant DMR-0820521), the Nanoelectronics Research Initiative of the Semiconductor Research Corporation, the National Science Foundation (grant EPS-1010674), and the Nebraska Research Initiative. Work at the University of Michigan was supported by the U.S. Department of Energy (DOE) under grant DE-FG02-07ER46416. We thank the National Center for Electron Microscopy at Lawrence Berkeley National Laboratory for their support under DOE grant DE-AC02-05CH11231 for user facilities. Work at Argonne and use of the Advanced Photon Source were supported by the DOE Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357. Work at Brookhaven National Laboratory was sponsored by DOE/BES/MSE and the Center for Functional Nanomaterials under contract DE-AC02-98CH10886. J. Karapetrova's assistance at beamline 33-BM of the Advanced Photon Source is gratefully acknowledged. NR 31 TC 131 Z9 133 U1 14 U2 171 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 EI 1095-9203 J9 SCIENCE JI Science PD FEB 18 PY 2011 VL 331 IS 6019 BP 886 EP 889 DI 10.1126/science.1198781 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 722SO UT WOS:000287455100049 PM 21330538 ER PT J AU Wang, J Misra, A Hirth, JP AF Wang, J. Misra, A. Hirth, J. P. TI Shear response of Sigma 3{112} twin boundaries in face-centered-cubic metals SO PHYSICAL REVIEW B LA English DT Article ID PHYSICAL VAPOR-DEPOSITION; EMBEDDED-ATOM-METHOD; GRAIN-BOUNDARY; DISLOCATION NUCLEATION; ULTRAHIGH-STRENGTH; MAXIMUM STRENGTH; GROWTH TWINS; COPPER; CU; INTERFACES AB Molecular statics and dynamics simulations were used to study the mechanisms of sliding and migration of Sigma 3{112} incoherent twin boundaries (ITBs) under applied shear acting in the boundary in the face-centered-cubic (fcc) metals, Ag, Cu, Pd, and Al, of varying stacking fault energies. These studies revealed that (i) ITBs can dissociate into two phase boundaries (PBs), bounding the hexagonal 9R phase, that contain different arrays of partial dislocations; (ii) the separation distance between the two PBs scales inversely with increasing stacking fault energy; (iii) for fcc metals with low stacking fault energy, one of the two PBs migrates through the collective glide of partials, referred to as the phase-boundary-migration (PBM) mechanism; (iv) for metals with high stacking energy, ITBs experience a coupled motion (migration and sliding) through the glide of interface disconnections, referred to as the interface-disconnection-glide (IDG) mechanism. C1 [Wang, J.] Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. [Misra, A.; Hirth, J. P.] Los Alamos Natl Lab, Mat Phys & Applicat Div, CINT, Los Alamos, NM 87545 USA. RP Wang, J (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, MST 8, Los Alamos, NM 87545 USA. EM wangj6@lanl.gov RI Misra, Amit/H-1087-2012; Wang, Jian/F-2669-2012 OI Wang, Jian/0000-0001-5130-300X FU US Department of Energy, Office of Science, Office of Basic Energy Sciences FX This work was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences. The authors acknowledge fruitful collaborations with R. G. Hoagland, N. Li, and X. Zhang. NR 58 TC 53 Z9 53 U1 3 U2 49 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 18 PY 2011 VL 83 IS 6 AR 064106 DI 10.1103/PhysRevB.83.064106 PG 8 WC Physics, Condensed Matter SC Physics GA 723CK UT WOS:000287483600001 ER PT J AU Bustamante, C Cheng, W Meija, YX AF Bustamante, Carlos Cheng, Wei Meija, Yara X. TI Revisiting the Central Dogma One Molecule at a Time SO CELL LA English DT Review ID HEPATITIS-C VIRUS; DNA PACKAGING MOTOR; COLI RNA-POLYMERASE; SINGLE MYOSIN MOLECULE; ESCHERICHIA-COLI; NS3 HELICASE; SACCHAROMYCES-CEREVISIAE; FORCE GENERATION; TRANSCRIPTION ELONGATION; DEOXYRIBONUCLEIC ACID AB The faithful relay and timely expression of genetic information depend on specialized molecular machines, many of which function as nucleic acid translocases. The emergence over the last decade of single-molecule fluorescence detection and manipulation techniques with nm and angstrom resolution and their application to the study of nucleic acid translocases are painting an increasingly sharp picture of the inner workings of these machines, the dynamics and coordination of their moving parts, their thermodynamic efficiency, and the nature of their transient intermediates. Here we present an overview of the main results arrived at by the application of single-molecule methods to the study of the main machines of the central dogma. C1 [Bustamante, Carlos] Univ Calif Berkeley, Jason L Choy Lab Single Mol Biophys, Berkeley, CA 94720 USA. [Bustamante, Carlos] Univ Calif Berkeley, Inst QB3, Berkeley, CA 94720 USA. [Bustamante, Carlos] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Bustamante, Carlos] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Bustamante, Carlos] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Cheng, Wei] Univ Michigan, Dept Pharmaceut Sci, Coll Pharm, Ann Arbor, MI 48109 USA. [Meija, Yara X.] Max Planck Inst Biophys Chem, D-37077 Gottingen, Germany. RP Bustamante, C (reprint author), Univ Calif Berkeley, Jason L Choy Lab Single Mol Biophys, Berkeley, CA 94720 USA. EM carlos@alice.berkeley.edu FU NIH; DOE; HHMI; University of Michigan Ann Arbor FX We thank Timothy M. Lohman at Washington University School of Medicine for a critical reading of the draft on helicases and many colleagues for stimulating discussions. The literature on nucleic acid translocases, in particular their single-molecule studies, is ever increasing. Due to space limitations and our coverage of selected topics, we would like to apologize to our colleagues who actively work on nucleic acid translocases yet whose work has not been cited here. C. B. was supported by NIH, DOE, and HHMI. W. C. was supported by Ara Paul Professorship fund at the University of Michigan Ann Arbor. NR 148 TC 82 Z9 83 U1 7 U2 73 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0092-8674 J9 CELL JI Cell PD FEB 18 PY 2011 VL 144 IS 4 BP 480 EP 497 DI 10.1016/j.cell.2011.01.033 PG 18 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 722ZC UT WOS:000287473100005 PM 21335233 ER PT J AU Bomble, YJ Beckham, GT Matthews, JF Nimlos, MR Himmel, ME Crowley, MF AF Bomble, Yannick J. Beckham, Gregg T. Matthews, James F. Nimlos, Mark R. Himmel, Michael E. Crowley, Michael F. TI Modeling the Self-assembly of the Cellulosome Enzyme Complex SO JOURNAL OF BIOLOGICAL CHEMISTRY LA English DT Article ID CLOSTRIDIUM-THERMOCELLUM CELLULOSOME; INTEGRATING PROTEIN CIPA; CRYSTAL-STRUCTURE; CELLOBIOHYDROLASE CBHA; DISORDERED PROTEIN; INTRINSIC DISORDER; ENERGY LANDSCAPE; STRUCTURAL BASIS; DOCKERIN DOMAIN; ENDOGLUCANASE AB Most bacteria use free enzymes to degrade plant cell walls in nature. However, some bacteria have adopted a different strategy wherein enzymes can either be free or tethered on a protein scaffold forming a complex called a cellulosome. The study of the structure and mechanism of these large macromolecular complexes is an active and ongoing research topic, with the goal of finding ways to improve biomass conversion using cellulosomes. Several mechanisms involved in cellulosome formation remain unknown, including how cellulosomal enzymes assemble on the scaffoldin and what governs the population of cellulosomes created during self-assembly. Here, we present a coarse-grained model to study the self-assembly of cellulosomes. The model captures most of the physical characteristics of three cellulosomal enzymes (Cel5B, CelS, and CbhA) and the scaffoldin (CipA) from Clostridium thermocellum. The protein structures are represented by beads connected by restraints to mimic the flexibility and shapes of these proteins. From a large simulation set, the assembly of cellulosomal enzyme complexes is shown to be dominated by their shape and modularity. The multimodular enzyme, CbhA, binds statistically more frequently to the scaffoldin than CelS or Cel5B. The enhanced binding is attributed to the flexible nature and multimodularity of this enzyme, providing a longer residence time around the scaffoldin. The characterization of the factors influencing the cellulosome assembly process may enable new strategies to create designers cellulosomes. C1 [Bomble, Yannick J.; Matthews, James F.; Himmel, Michael E.; Crowley, Michael F.] Colorado Sch Mines, Biosci Ctr, Golden, CO 80401 USA. [Beckham, Gregg T.; Nimlos, Mark R.] Colorado Sch Mines, Natl Bioenergy Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA. [Beckham, Gregg T.] Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA. [Bomble, Yannick J.; Nimlos, Mark R.; Himmel, Michael E.; Crowley, Michael F.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN 37831 USA. [Beckham, Gregg T.; Himmel, Michael E.] Univ Colorado, Renewable & Sustainable Energy Inst, Boulder, CO 80309 USA. RP Bomble, YJ (reprint author), Colorado Sch Mines, Biosci Ctr, Golden, CO 80401 USA. EM Yannick.Bomble@nrel.gov; Michael.Crowley@nrel.gov RI crowley, michael/A-4852-2013 OI crowley, michael/0000-0001-5163-9398 FU Department of Energy (DOE) Office of Science, Office of the Biological and Environmental Research through the Bioenergy Science Center; DOE Bioenergy Research Center; DOE Office of Science ASCR SciDAC; Texas Advanced Computing Center Ranger cluster under National Science Foundation [MCB090159]; National Science Foundation; National Renewable Energy Laboratory FX This work was supported by the Department of Energy (DOE) Office of Science, Office of the Biological and Environmental Research through the Bioenergy Science Center, a DOE Bioenergy Research Center, and by the DOE Office of Science ASCR SciDAC program.; We thank the Texas Advanced Computing Center Ranger cluster under National Science Foundation Teragrid Grant MCB090159. We thank Qi Xu for helpful discussions. Access to PONDR (R) was provided by Molecular Kinetics. Computational time for this research was supported in part by the Golden Energy Computing Organization at the Colorado School of Mines using resources acquired with financial assistance from the National Science Foundation and the National Renewable Energy Laboratory. NR 71 TC 23 Z9 23 U1 0 U2 14 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 FEB 18 PY 2011 VL 286 IS 7 BP 5614 EP 5623 DI 10.1074/jbc.M110.186031 PG 10 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 719SY UT WOS:000287230600071 PM 21098021 ER PT J AU Zhang, ZN Zhou, R Sauder, JM Tonge, PJ Burley, SK Swaminathan, S AF Zhang, Zhening Zhou, Rong Sauder, J. Michael Tonge, Peter J. Burley, Stephen K. Swaminathan, Subramanyam TI Structural and Functional Studies of Fatty Acyl Adenylate Ligases from E. coli and L. pneumophila SO JOURNAL OF MOLECULAR BIOLOGY LA English DT Article DE fatty acyl-AMP ligase; fatty acyl-CoA ligase; X-ray structure; AMP; CoA ID MYCOBACTERIUM-TUBERCULOSIS; COENZYME; SYNTHETASE; RECOGNITION; ACTIVATION; MECHANISM; SOFTWARE; PROTEINS AB Fatty acyl-AMP ligase (FAAL) is a new member of a family of adenylate-forming enzymes that were recently discovered in Mycobacterium tuberculosis. They are similar in sequence to fatty acyl-coenzyme A (CoA) ligases (FACLs). However, while FACLs perform a two-step catalytic reaction, AMP ligation followed by CoA ligation using ATP and CoA as cofactors, FAALs produce only the acyl adenylate and are unable to perform the second step. We report X-ray crystal structures of full-length FAAL from Escherichia coli (EcFAAL) and FAAL from Legionella pneumophila (LpFAAL) bound to acyl adenylate, determined at resolution limits of 3.0 and 1.85 angstrom, respectively. The structures share a larger N-terminal domain and a smaller C-terminal domain, which together resemble the previously determined structures of FAAL and FACL proteins. Our two structures occur in quite different conformations. EcFAAL adopts the adenylate-forming conformation typical of FACLs, whereas LpFAAL exhibits a unique intermediate conformation. Both EcFAAL and LpFAAL have insertion motifs that distinguish them from the FACLs. Structures of EcFAAL and LpFAAL reveal detailed interactions between this insertion motif and the interdomain hinge region and with the C-terminal domain. We suggest that the insertion motifs support sufficient interdomain motions to allow substrate binding and product release during acyl adenylate formation, but they preclude CoA binding, thereby preventing CoA ligation. Published by Elsevier Ltd. C1 [Zhang, Zhening; Swaminathan, Subramanyam] Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. [Zhou, Rong; Tonge, Peter J.] SUNY Stony Brook, Dept Chem, Inst Chem Biol & Drug Discovery, Stony Brook, NY 11794 USA. [Sauder, J. Michael; Burley, Stephen K.] SGX Pharmaceut Inc, San Diego, CA 92121 USA. RP Swaminathan, S (reprint author), Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. EM swami@bnl.gov FU National Institute of General Medical Sciences to the New York SGX Research Center for Structural Genomics under DOE [GM074945, DEAC02-98CH10886]; Brookhaven National Laboratory; National Institutes of Health [AI044639] FX Research was supported by a U54 award from the National Institute of General Medical Sciences to the New York SGX Research Center for Structural Genomics (GM074945, PI: S.K.B.) under DOE Prime Contract No. DEAC02-98CH10886 with Brookhaven National Laboratory and by National Institutes of Health grant AI044639 (PI: P.J.T.). We thank Drs. Howard Robinson and Anand Saxena for providing data collection facilities (X29 and X12C) at the National Synchrotron Light Source. NR 21 TC 11 Z9 11 U1 1 U2 3 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0022-2836 EI 1089-8638 J9 J MOL BIOL JI J. Mol. Biol. PD FEB 18 PY 2011 VL 406 IS 2 BP 313 EP 324 DI 10.1016/j.jmb.2010.12.011 PG 12 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 762SJ UT WOS:000290501100007 PM 21185305 ER PT J AU Ziegler, D Stemmer, A AF Ziegler, Dominik Stemmer, Andreas TI Force gradient sensitive detection in lift-mode Kelvin probe force microscopy SO NANOTECHNOLOGY LA English DT Article ID SCANNING CAPACITANCE MICROSCOPY; SURFACE-POTENTIAL MEASUREMENTS; FREQUENCY-MODULATION-DETECTION; LIGHT-EMITTING DEVICES; ULTRAHIGH-VACUUM; NANOMETER-SCALE; THIN-FILMS; RESOLUTION; SIMULATIONS; DIFFERENCE AB We demonstrate frequency modulation Kelvin probe force microscopy operated in lift-mode under ambient conditions. Frequency modulation detection is sensitive to force gradients rather than forces as in the commonly used amplitude modulation technique. As a result there is less influence from electric fields originating from the tip's cone and cantilever, and the recorded surface potential does not suffer from the large lateral averaging observed in amplitude modulated Kelvin probe force microscopy. The frequency modulation technique further shows a reduced dependence on the lift-height and the frequency shift can be used to map the second order derivative of the tip-sample capacitance which gives high resolution material contrast of dielectric sample properties. The sequential nature of the lift-mode technique overcomes various problems of single-scan techniques, where crosstalk between the Kelvin probe and topography feedbacks often impair the correct interpretation of the recorded data in terms of quantitative electric surface potentials. C1 [Ziegler, Dominik; Stemmer, Andreas] ETH, Nanotechnol Grp, Dept Mech & Proc Engn, CH-8092 Zurich, Switzerland. RP Ziegler, D (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, 1 Cyclotron Rd,Mail Stop 67R2206, Berkeley, CA 94720 USA. EM dziegler@lbl.gov NR 62 TC 30 Z9 30 U1 3 U2 25 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0957-4484 J9 NANOTECHNOLOGY JI Nanotechnology PD FEB 18 PY 2011 VL 22 IS 7 AR 075501 DI 10.1088/0957-4484/22/7/075501 PG 9 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 707VC UT WOS:000286316000010 PM 21233549 ER PT J AU Abazov, VM Abbott, B Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arnoud, Y Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Banerjee, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Bolton, TA Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Christoudias, T Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Cwiok, M Das, A Davies, G De, K de Jong, SJ De La Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Gadfort, T Garcia-Bellido, A Gavrilov, V Gay, P Geist, W Geng, W Gerbaudo, D Gerber, CE Gershtein, Y Ginther, G Golovanov, G Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guo, F Gutierrez, G Gutierrez, P Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, J Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C Heredia-De La Cruz, I Herner, K Hesketh, G Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hossain, S Hubacek, Z Huske, N Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jain, S Jamin, D Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, P Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M Love, P Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJOY Owen, M Padilla, M Pangilinan, M Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petrillo, G Petroff, P Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Podstavkov, VM Pol, ME Polozov, P Popov, AV Prewitt, M Price, D Protopopescu, S Qian, J Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, P Rich, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F 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Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Royon, C. Rubinov, P. Ruchti, R. Safronov, G. Sajot, G. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, P. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Sopczak, A. Sosebee, M. Soustruznik, K. Spurlock, B. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, M. Strom, D. Stutte, L. Suter, L. Svoisky, P. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsai, Y. -T. Tsybychev, D. Tuchming, B. Tully, C. Tuts, P. M. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. Van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vint, P. Vokac, P. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wimpenny, S. J. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Measurement of the W boson helicity in top quark decays using 5.4 fb(-1) of p(p)over-bar collision data SO PHYSICAL REVIEW D LA English DT Article ID (P)OVER-BAR-P COLLISIONS; ROOT-S=1.8 TEV; DETECTOR AB We present a measurement of the helicity of the W boson produced in top quark decays using t (t) over bar decays in the l + jets and dilepton final states selected from a sample of 5.4 fb(-1) of collisions recorded using the D0 detector at the Fermilab Tevatron p (p) over bar collider. 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D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Facini, G.; Haley, J.; Hesketh, G.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA. [Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Brock, R.; Edmunds, D.; Fisher, W.; Geng, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Ferbel, T.; Garcia-Bellido, A.; Ginther, G.; Harel, A.; Petrillo, G.; Slattery, P.; Tsai, Y. -T.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Boline, D.; Chakrabarti, S.; Grannis, P. D.; Guo, F.; Hobbs, J. D.; McCarthy, R.; Rijssenbeek, M.; Schamberger, R. D.; Tsybychev, D.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, P.; Hossain, S.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Sosebee, M.; Spurlock, B.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. RI De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Alves, Gilvan/C-4007-2013; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias, Theodoros/E-7305-2015; Gerbaudo, Davide/J-4536-2012; Li, Liang/O-1107-2015; Gutierrez, Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; bu, xuebing/D-1121-2012; Santos, Angelo/K-5552-2012; Mercadante, Pedro/K-1918-2012; Yip, Kin/D-6860-2013; Wimpenny, Stephen/K-8848-2013; Fisher, Wade/N-4491-2013; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012 OI Price, Darren/0000-0003-2750-9977; Bertram, Iain/0000-0003-4073-4941; Belanger-Champagne, Camille/0000-0003-2368-2617; De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Christoudias, Theodoros/0000-0001-9050-3880; Gerbaudo, Davide/0000-0002-4463-0878; Li, Liang/0000-0001-6411-6107; Yip, Kin/0000-0002-8576-4311; Wimpenny, Stephen/0000-0003-0505-4908; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549 FU DOE; NSF (USA); CEA; CNRS/IN2P3 (France); FASI; Rosatom; RFBR (Russia); CNPq; FAPERJ; FAPESP; FUNDUNESP (Brazil); DAE; DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF; KOSEF (Korea); CONICET; UBACyT (Argentina); FOM (The Netherlands); STFC; Royal Society (United Kingdom); MSMT; GACR (Czech Republic); CRC; NSERC (Canada); BMBF; DFG (Germany); SFI (Ireland); Swedish Research Council (Sweden); CAS; CNSF (China) FX We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 23 TC 37 Z9 37 U1 1 U2 12 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB 18 PY 2011 VL 83 IS 3 AR 032009 DI 10.1103/PhysRevD.83.032009 PG 18 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 723DO UT WOS:000287486700001 ER PT J AU Ataide, SF Schmitz, N Shen, KA Ke, AL Shan, SO Doudna, JA Ban, NN AF Ataide, Sandro F. Schmitz, Nikolaus Shen, Kuang Ke, Ailong Shan, Shu-ou Doudna, Jennifer A. Ban, Nenad TI The Crystal Structure of the Signal Recognition Particle in Complex with Its Receptor SO SCIENCE LA English DT Article ID SRP GTPASES FFH; ESCHERICHIA-COLI; CONFORMATIONAL-CHANGES; TRANSLATING RIBOSOME; NUCLEOTIDE SPECIFICITY; 4.5S RNA; FTSY; BINDING; DOMAIN; CORE AB Cotranslational targeting of membrane and secretory proteins is mediated by the universally conserved signal recognition particle (SRP). Together with its receptor (SR), SRP mediates the guanine triphosphate (GTP)-dependent delivery of translating ribosomes bearing signal sequences to translocons on the target membrane. Here, we present the crystal structure of the SRP: SR complex at 3.9 angstrom resolution and biochemical data revealing that the activated SRP: SR guanine triphosphatase (GTPase) complex binds the distal end of the SRP hairpin RNA where GTP hydrolysis is stimulated. Combined with previous findings, these results suggest that the SRP: SR GTPase complex initially assembles at the tetraloop end of the SRP RNA and then relocalizes to the opposite end of the RNA. This rearrangement provides a mechanism for coupling GTP hydrolysis to the handover of cargo to the translocon. C1 [Doudna, Jennifer A.] Univ Calif Berkeley, Dept Chem, Howard Hughes Med Inst, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Doudna, Jennifer A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Ataide, Sandro F.; Schmitz, Nikolaus; Ban, Nenad] ETH, Inst Mol Biol & Biophys, CH-8093 Zurich, Switzerland. [Shen, Kuang; Shan, Shu-ou] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA. [Ke, Ailong] Cornell Univ, Dept Mol Biol & Genet, Ithaca, NY 14853 USA. RP Doudna, JA (reprint author), Univ Calif Berkeley, Dept Chem, Howard Hughes Med Inst, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. EM doudna@berkeley.edu; ban@mol.biol.ethz.ch RI Shen, Kuang/H-9441-2016 FU Howard Hughes Medical Institute; ETH; Boehringer Ingelheim Fonds; NIH [GM078024]; Swiss National Science Foundation (SNSF); National Center of Excellence in Research (NCCR) of the SNSF FX We thank K. Zhou for excellent technical assistance and help with crystal preparation during the early stages of the project. Initial crystallographic analysis was performed at beamline 8.2.2 at the Advanced Light Source (ALS), Lawrence Berkeley National Laboratory; we acknowledge C. Ralston for outstanding technical assistance at the ALS. Crystallographic data were collected at the beamline X06SA at the Swiss Light Source (SLS). We thank A. Brunger for the prerelease version of CNS and for helpful comments on the refinement, C. Schulze-Briese and T. Tomizaki for their outstanding support at the SLS, T. Maier and S. Klinge for critical discussion and reading of the manuscript, and T. Maier and M. Leibundgut for help and assistance with data collection and solving the structure. S.F.A. was funded initially by the Howard Hughes Medical Institute and currently by an ETH postdoctoral fellowship, N.S. is funded by Boehringer Ingelheim Fonds, and K.S. is funded by NIH grant GM078024 to S.S. This work was supported in part by the Howard Hughes Medical Institute (J.A.D.) and by the Swiss National Science Foundation (SNSF) and the National Center of Excellence in Research (NCCR) Structural Biology program of the SNSF. Atomic coordinates and structure factors for the SRP:SR crystal structure have been deposited with the Protein Data Bank under accession code 2xxa. NR 39 TC 68 Z9 71 U1 4 U2 25 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD FEB 18 PY 2011 VL 331 IS 6019 BP 881 EP 886 DI 10.1126/science.1196473 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 722SO UT WOS:000287455100048 PM 21330537 ER PT J AU Trease, D Bajaj, VS Paulsen, J Pines, A AF Trease, David Bajaj, Vikram S. Paulsen, Jeffrey Pines, Alexander TI Ultrafast optical encoding of magnetic resonance SO CHEMICAL PHYSICS LETTERS LA English DT Article ID LASER FLASH-PHOTOLYSIS; TIME-RESOLVED CIDNP; 2,2'-DIPYRIDYL; MAGNETOMETRY; FLUIDS; STATE AB Temporal resolution in magnetic resonance imaging (MRI) is limited by the time required to encode the position of spins using time-varying (10-100 ms) magnetic field gradients. Here, we demonstrate spatial encoding of MRI images in a time that is three orders of magnitude shorter than what is possible by conventional gradient encoding techniques. Our method exploits the chemically induced dynamic nuclear polarization (CIDNP) effect and is an initial example of a set of approaches that seek to combine the favorable properties of optical spectroscopy with those of NMR for polarization, encoding, and detection. (C) 2010 Elsevier B.V. All rights reserved. C1 [Bajaj, Vikram S.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Bajaj, VS (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM vikbajaj@gmail.com OI Paulsen, Jeffrey/0000-0003-1031-4858 FU Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy [DE-AC02-05CH11231]; Chevron; Schlumberger-Doll Research; Agilent Foundation FX This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the US Department of Energy under Contract No. DE-AC02-05CH11231. The authors thank Professor David Wemmer for helpful discussions and acknowledge Chevron, Schlumberger-Doll Research and the Agilent Foundation for their generous and unrestricted support of our research. NR 19 TC 6 Z9 6 U1 1 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD FEB 17 PY 2011 VL 503 IS 4-6 BP 187 EP 190 DI 10.1016/j.cplett.2010.12.063 PG 4 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 719FW UT WOS:000287187800001 ER PT J AU Protsykevytch, IA Kalyuzhnyi, YV Cummings, PT AF Protsykevytch, I. A. Kalyuzhnyi, Yu. V. Cummings, P. T. TI Phase behavior of a simple model of ferrocolloidal fluid SO CHEMICAL PHYSICS LETTERS LA English DT Article ID DIRECTIONAL ATTRACTIVE FORCES; MEAN-SPHERICAL APPROXIMATION; THERMODYNAMIC PERTURBATION-THEORY; ELECTROLYTE-SOLUTIONS; INTEGRAL-EQUATIONS; ASSOCIATION; POLYMERIZATION; EQUILIBRIUM; FERROFLUIDS; DIAGRAM AB We propose a simple model of ferrocolloidal fluid and study its phase behavior. The model consists of a two-component mixture of highly asymmetric charged hard spheres with the smaller hard spheres representing counterions, and the larger hard spheres, which represent the polyions, possessing both charge and a magnetic dipole moment. The liquid-gas phase behavior is studied at different values of the charge asymmetry using thermodynamic perturbation theory for associating fluids with central force associative potential. Upon increasing the counterion to polyion charge ratio the critical temperature and density exhibit nonmonotonic behavior, which is governed by the competition between dipole-dipole and charge-charge interactions. (C) 2011 Elsevier B.V. All rights reserved. C1 [Protsykevytch, I. A.; Kalyuzhnyi, Yu. V.] Inst Condensed Matter Phys, UA-79011 Lvov, Ukraine. [Cummings, P. T.] Vanderbilt Univ, Dept Chem Engn, Nashville, TN 37235 USA. [Cummings, P. T.] Oak Ridge Natl Lab, Nanomat Theory Inst, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA. RP Kalyuzhnyi, YV (reprint author), Inst Condensed Matter Phys, Svientsitskoho 1, UA-79011 Lvov, Ukraine. EM yukal@icmp.lviv.ua RI Cummings, Peter/B-8762-2013 OI Cummings, Peter/0000-0002-9766-2216 NR 25 TC 0 Z9 0 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD FEB 17 PY 2011 VL 503 IS 4-6 BP 226 EP 230 DI 10.1016/j.cplett.2011.01.009 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 719FW UT WOS:000287187800008 ER PT J AU Ong, QK Lin, XM Wei, A AF Ong, Quy Khac Lin, Xiao-Min Wei, Alexander TI Role of Frozen Spins in the Exchange Anisotropy of Core-Shell Fe@Fe3O4 Nanoparticles SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID FE NANOPARTICLES; MAGNETIC-ANISOTROPY; HOLLOW NANOCRYSTALS; IRON NANOPARTICLES; BIAS; NANOSCALE; OXIDATION; MODEL AB Core-shell Fe@Fe3O4 nanoparticles exhibit substantial exchange bias at low temperatures, mediated by unidirectionally aligned moments at the core shell interface. These spins are frozen into magnetic alignment with field cooling and are depinned in a temperature-dependent manner. The population of such frozen spins has a direct impact on both coercivity (H-C) and the exchange-bias field (H-E), which are modulated by external physical parameters such as the strength of the applied cooling field and the cycling history of magnetic field sweeps (training effect). Aging of the core-shell nanoparticles under ambient conditions results in a gradual decrease in magnetization but overall retention of H-C and H-E, as well as a large increase in the population of frozen spins. These changes are accompanied by a structural evolution from well-defined core-shell structures to particles containing multiple voids, attributable to the Kirkendall effect. Energy-filtered and high-resolution transmission electron microscopy both indicate further oxidation of the shell layer, but the Fe core is remarkably well preserved. The increase in frozen spin population with age is responsible for the overall retention of exchange bias, despite void formation and other oxidation-dependent changes. The exchange-bias field becomes negligible upon deliberate oxidation of Fe@Fe3O4 nanoparticles into nanoparticles into yolk-shell particles, with a nearly complete physical separation of core and shell. C1 [Lin, Xiao-Min] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Ong, Quy Khac; Wei, Alexander] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA. RP Lin, XM (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM xmlin@anl.gov; alexwei@purdue.edu FU National Science Foundation [CHE-0957738]; National Institutes of Health [RC1 CA-147096]; U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work is supported by the National Science Foundation under CHE-0957738 and the National Institutes of Health under RC1 CA-147096. Work at the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. We thank M. Bode for fruitful discussions. NR 38 TC 31 Z9 31 U1 3 U2 43 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 FEB 17 PY 2011 VL 115 IS 6 BP 2665 EP 2672 DI 10.1021/jp110716g PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 717RS UT WOS:000287065700009 PM 21321674 ER PT J AU Smalley, JF Wu, YC AF Smalley, John F. Wu, Yi-Chyi TI Anion Adsorption and Adsorption/Desorption Kinetics onto/from Au(111) Electrodes Studied Using the Indirect Laser-Induced Temperature Jump Technique SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID SINGLE-CRYSTAL ELECTRODES; INFRARED-ABSORPTION SPECTROSCOPY; SCANNING-TUNNELING-MICROSCOPY; DOUBLE-LAYER CAPACITANCE; SULFURIC-ACID-SOLUTIONS; HIGHLY ORDERED AU(111); ION-TRANSFER-REACTIONS; PLATINUM-GROUP METALS; X-RAY-DIFFRACTION; MOLECULAR-DYNAMICS AB We demonstrate that the potential dependence of the initial change (A/Delta T(eq)) in the open-circuit potential of Au(1 1 1) vertical bar (nonelectroactive) electrolyte solution interfaces (effected by the temperature perturbation (Delta T(eq)) induced by, the indirect laser-induced temperature jump (ILIT) technique) is sensitive to the presence of the anion components of the electrolyte adsorbed onto the electrode surfaces for a wide variety of anions. Analysis of the potential dependence of A/Delta T(eq) for the ClO(4)(-) and SO(4)(2-) anions, therefore, is used to ascertain (for ClO(4)(-)) or estimate (for SO(4)(2-)) the temperature derivative of the dipole potential (i.e., (dV(D))/(dT)) associated with the relevant Au( 111) vertical bar electrolyte solution interface. The value and any potential dependence of (dVD)/(dT) are suitable probes of the structure of the pertinent electrode vertical bar electrolyte interface. The negative value determined here for the (dVD)/(dT) associated with a complete (saturated) layer of ClO(4)(-) ions adsorbed onto a Au(111) electrode surface (i.e., -(0.51 +/- 0.08) mV K(-1)) is, for example, consistent with a picture of this layer where the hydrogen atoms of the water molecule constituents of this layer originally (before the temperature perturbation) point, as should be expected, are toward the adsorbed ClO(4)(-) ions. Additionally, we demonstrate that studies of the potential dependence of the adsorption/desorption kinetics of adsorbate ions may also be used as a structural probe of the electrochemical double layer containing the adsorbed ion. Accordingly, as the result of a study of the adsorption/desorption kinetics of Cl ions adsorbed onto a Au(111) electrode, we speculate that the first layer of water molecules in contact with this surface is compressed. C1 [Smalley, John F.; Wu, Yi-Chyi] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Smalley, JF (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM Smalley@bnl.gov FU Fundamental Interactions Branch, Office of Basic Energy Science of the U.S. Department of Energy [DE-AC02-98CH10886] FX The authors thank the Fundamental Interactions Branch, Office of Basic Energy Science of the U.S. Department of Energy, for support through Contract No. DE-AC02-98CH10886. J.F.S. also thanks Dr. Marshall D. Newton, Chemistry Department, Brookhaven National Laboratory, for many helpful discussions. NR 89 TC 1 Z9 2 U1 6 U2 35 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 FEB 17 PY 2011 VL 115 IS 6 BP 2693 EP 2704 DI 10.1021/jp1075077 PG 12 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 717RS UT WOS:000287065700013 ER PT J AU Oh, YS Jeon, BG Haam, SY Park, S Correa, VF Lacerda, AH Cheong, SW Jeon, GS Kim, KH AF Oh, Yoon Seok Jeon, Byung-Gu Haam, S. Y. Park, S. Correa, V. F. Lacerda, A. H. Cheong, S. -W. Jeon, Gun Sang Kim, Kee Hoon TI Strong magnetoelastic effect on the magnetoelectric phenomena of TbMn2O5 SO PHYSICAL REVIEW B LA English DT Article ID MAGNETOSTRICTION AB Comparative studies of magnetoelectric susceptibility (alpha), magnetization (M), and magnetostriction (u) in TbMn2O5 reveal that the increment of M owing to the field-induced Tb3+ spin alignment produces a field-asymmetric line shape in the alpha(H) curve, which is conspicuous in a low-temperature incommensurate phase but persistently subsists in the entire ferroelectric phase. Correlations among electric polarization, u, and M-2 variation represent linear relationships, unambiguously showing the significant role of Tb magnetoelastic effects on the low-field magnetoelectric phenomena of TbMn2O5. An effective free energy capturing the observed experimental features is also suggested. C1 [Oh, Yoon Seok; Jeon, Byung-Gu; Haam, S. Y.; Jeon, Gun Sang; Kim, Kee Hoon] Seoul Natl Univ, Dept Phys & Astron, CeNSCMR, Seoul 151747, South Korea. [Park, S.; Cheong, S. -W.] Rutgers Ctr Emergent Mat, Piscataway, NJ 08854 USA. [Park, S.; Cheong, S. -W.] Dept Phys & Astron, Piscataway, NJ 08854 USA. [Correa, V. F.] Comis Nacl Energia Atom, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Argentina. [Lacerda, A. H.] Los Alamos Natl Lab, LANSCE, Los Alamos, NM 87545 USA. RP Oh, YS (reprint author), Seoul Natl Univ, Dept Phys & Astron, CeNSCMR, Seoul 151747, South Korea. RI Oh, Yoon Seok/A-1071-2011 OI Oh, Yoon Seok/0000-0001-8233-1898 FU NRF through Creative Research Initiatives, NRL [M10600000238]; Basic Science Research [2009-0083512]; GPP program [K20702020014-07E0200-01410]; Basic Science Research Program [2010-0010937]; DOE [DE-FG02-07ER46382] FX We thank Maxim Mostovoy for fruitful discussions on the free-energy analysis. This study was supported by NRF through Creative Research Initiatives, NRL (M10600000238), Basic Science Research (2009-0083512) programs, and by GPP program (K20702020014-07E0200-01410). GSJ was also supported by Basic Science Research Program (2010-0010937). The work at Rutgers was supported by DOE grant (DE-FG02-07ER46382). VFC is a member of CONICET. NR 22 TC 6 Z9 6 U1 0 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 17 PY 2011 VL 83 IS 6 AR 060405 DI 10.1103/PhysRevB.83.060405 PG 4 WC Physics, Condensed Matter SC Physics GA 723CI UT WOS:000287483400002 ER PT J AU Kang, ZB AF Kang, Zhong-Bo TI QCD evolution of naive-time-reversal-odd fragmentation functions SO PHYSICAL REVIEW D LA English DT Article ID DEEP-INELASTIC SCATTERING; TRANSVERSE-SPIN ASYMMETRIES; SINGLE-SPIN; HARD-SCATTERING; PERTURBATION-THEORY; STATE INTERACTIONS; PION-PRODUCTION; DRELL-YAN; ORDER 1/Q; LEPTOPRODUCTION AB We study QCD evolution equations of the first transverse-momentum moment of the naive-time-reversal-odd fragmentation functions-the Collins function and the polarizing fragmentation function. We find for the Collins function case that the evolution kernel has a diagonal piece the same as that for the transversity fragmentation function, while for the polarizing fragmentation function case this piece is the same as that for the unpolarized fragmentation function. Our results might have important implications in the current global analysis of spin asymmetries. C1 Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. RP Kang, ZB (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. EM zkang@bnl.gov RI Kang, Zhongbo/P-3645-2014 FU RIKEN, Brookhaven National Laboratory; U.S. Department of Energy [DE-AC02-98CH10886] FX We are grateful to RIKEN, Brookhaven National Laboratory, and the U.S. Department of Energy (Contract No. DE-AC02-98CH10886) for supporting this work. We thank the Institute for Nuclear Theory at University of Washington for its hospitality during the writing of this work. NR 78 TC 23 Z9 23 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 17 PY 2011 VL 83 IS 3 AR 036006 DI 10.1103/PhysRevD.83.036006 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 723DK UT WOS:000287486300003 ER PT J AU Li, ZQ Li, C Chen, H Tsay, SC Holben, B Huang, J Li, B Maring, H Qian, Y Shi, G Xia, X Yin, Y Zheng, Y Zhuang, G AF Li, Zhanqing Li, C. Chen, H. Tsay, S. -C. Holben, B. Huang, J. Li, B. Maring, H. Qian, Y. Shi, G. Xia, X. Yin, Y. Zheng, Y. Zhuang, G. TI East Asian Studies of Tropospheric Aerosols and their Impact on Regional Climate (EAST-AIRC): An overview SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID SOLAR-RADIATION; DUST AEROSOLS; EARTHS SURFACE; CHINA; CLOUD; POLLUTION; STORM; PRECIPITATION; PACIFIC; DESERT AB As the most populated region of the world, Asia is a major source of aerosols with potential large impact over vast downstream areas. Papers published in this special section describe the variety of aerosols observed in China and their effects and interactions with the regional climate as part of the East Asian Study of Tropospheric Aerosols and their Impact on Regional Climate (EAST-AIRC). The majority of the papers are based on analyses of observations made under three field projects, namely, the Atmospheric Radiation Measurements ( ARM) Mobile Facility mission in China (AMF-China), the East Asian Study of Tropospheric Aerosols: An International Regional Experiment (EAST-AIRE), and the Atmospheric Aerosols of China and their Climate Effects (AACCE). The former two are U.S.-China collaborative projects, and the latter is a part of the China's National Basic Research program ( or often referred to as "973 project"). Routine meteorological data of China are also employed in some studies. The wealth of general and specialized measurements lead to extensive and close-up investigations of the optical, physical, and chemical properties of anthropogenic, natural, and mixed aerosols; their sources, formation, and transport mechanisms; horizontal, vertical, and temporal variations; direct and indirect effects; and interactions with the East Asian monsoon system. Particular efforts are made to advance our understanding of the mixing and interaction between dust and anthropogenic pollutants during transport. Several modeling studies were carried out to simulate aerosol impact on radiation budget, temperature, precipitation, wind and atmospheric circulation, fog, etc. In addition, impacts of the Asian monsoon system on aerosol loading are also simulated. C1 [Li, Zhanqing; Li, C.] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA. [Li, Zhanqing; Li, C.] Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20740 USA. [Li, Zhanqing] Beijing Normal Univ, State Lab Earth Surface Proc & Resource Ecol, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China. [Li, Zhanqing; Yin, Y.; Zheng, Y.] Nanjing Univ Informat Sci & Technol, Coll Atmospher Phys, Nanjing 21004, Peoples R China. [Li, C.; Tsay, S. -C.; Holben, B.] NASA, Goddard Space Flight Ctr, Atmospheres Lab, Greenbelt, MD 20771 USA. [Chen, H.; Shi, G.; Xia, X.] Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China. [Huang, J.] Lanzhou Univ, Sch Atmospher Sci, Lanzhou 730000, Peoples R China. [Li, B.] China Meteorol Adm, Ctr Atmospher Observat, Beijing 100081, Peoples R China. [Maring, H.] NASA Headquarters, Radiat Sci Program, Washington, DC 20546 USA. [Qian, Y.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Zhuang, G.] Fudan Univ, Dept Environm Sci & Technol, Shanghai 200433, Peoples R China. RP Li, ZQ (reprint author), Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20740 USA. EM zli@atmos.umd.edu RI qian, yun/E-1845-2011; Li, Can/F-6867-2011; Xia, Xiangao/G-5545-2011; Yin, Yan/I-8350-2014; Tsay, Si-Chee/J-1147-2014; Li, Zhanqing/F-4424-2010 OI Xia, Xiangao/0000-0002-4187-6311; Yin, Yan/0000-0002-8391-2712; Li, Zhanqing/0000-0001-6737-382X FU MOST [2006CB403706]; DOE [DEFG0208ER64571]; NASA [NNX08AH71G]; U.S. DOE by Battelle Memorial Institute [DE-AC06-76RLO1830] FX The study was supported by funding from the MOST (2006CB403706), DOE (DEFG0208ER64571), and NASA (NNX08AH71G). Figure 1b was created by S. Colson and J. Marshall. The AMF-China campaign was facilitated by many DOE scientists and managers, to name a few, M. Alsop, D. Kim Nitschke, D. Sisterson, W. Ferrell, K. Alapaty, J. Mather, M. Miller, and C. Flynn. W.-C. Wang of the SUNY Albany played a special role as the chief scientist for the U.S.China climate change cooperative program under which the campaign was carried out. Yun Qian's contribution is sponsored by the U. S. DOE's Office of Science Biological and Environmental Research under a bilateral agreement with the China Ministry of Science and Technology on regional climate research. PNNL is operated for the U.S. DOE by Battelle Memorial Institute under contract DE-AC06-76RLO1830. NR 100 TC 86 Z9 89 U1 7 U2 51 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X EI 2169-8996 J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD FEB 17 PY 2011 VL 116 AR D00K34 DI 10.1029/2010JD015257 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 723QA UT WOS:000287520700005 ER PT J AU Reeves, GD Morley, SK Friedel, RHW Henderson, MG Cayton, TE Cunningham, G Blake, JB Christensen, RA Thomsen, D AF Reeves, Geoffrey D. Morley, Steven K. Friedel, Reiner H. W. Henderson, Michael G. Cayton, Thomas E. Cunningham, Gregory Blake, J. Bernard Christensen, Rod A. Thomsen, Davis TI On the relationship between relativistic electron flux and solar wind velocity: Paulikas and Blake revisited SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID RADIATION BELT ELECTRONS; GEOSYNCHRONOUS ORBIT; MAGNETIC STORMS; ULF-WAVES; ACCELERATION; MAGNETOSPHERE; PREDICTION; DYNAMICS; LOSSES AB Thirty years ago Paulikas and Blake (1979) showed a remarkable correlation between geosynchronous relativistic electron fluxes and solar wind speed (Vsw). This seminal result has been a foundation of radiation belt studies, space weather forecasting, and current understanding of solar wind radiation belt coupling. We have repeated their analysis with a considerably longer-running data set (1989-2010) from the Los Alamos National Laboratory energetic particle instruments with several surprising results. Rather than the roughly linear correlation between Vsw and log (flux), our results show a triangle-shaped distribution in which fluxes have a distinct velocity-dependent lower limit but a velocity-independent upper limit. The highest-electron fluxes can occur for any value of Vsw with no indication of a Vsw threshold. We also find a distinct solar cycle dependence with the triangle-shaped distribution evident in 2 declining phase years dominated by high-speed streams but essentially no correlation in 2 solar maximum years. For time periods that do show a triangle-shaped distribution we consider whether it can be explained by scatter due to other parameters. We examine the role of time dependence and time lag in producing the observed distribution. We also look at the same statistical relationship but at energies << 1 MeV. We conclude that the relationship between radiation belt electron fluxes and solar wind velocity is substantially more complex than suggested by previous statistical studies. We find that there are important ways in which the "conventional wisdom" stating that high-velocity wind drives high-MeV electron fluxes is, in general, either misleading or unsupported. C1 [Reeves, Geoffrey D.; Morley, Steven K.; Friedel, Reiner H. W.; Henderson, Michael G.; Cayton, Thomas E.; Cunningham, Gregory; Christensen, Rod A.; Thomsen, Davis] Los Alamos Natl Lab, Space Sci & Applicat Grp, Los Alamos, NM 87545 USA. [Blake, J. Bernard] Aerosp Corp, Los Angeles, CA 90009 USA. RP Reeves, GD (reprint author), Los Alamos Natl Lab, Space Sci & Applicat Grp, POB 1663, Los Alamos, NM 87545 USA. EM reeves@lanl.gov RI Morley, Steven/A-8321-2008; Friedel, Reiner/D-1410-2012; Cunningham, Gregory/F-1017-2011; Reeves, Geoffrey/E-8101-2011; Henderson, Michael/A-3948-2011 OI Morley, Steven/0000-0001-8520-0199; Friedel, Reiner/0000-0002-5228-0281; Cunningham, Gregory/0000-0001-8819-4345; Reeves, Geoffrey/0000-0002-7985-8098; Henderson, Michael/0000-0003-4975-9029 FU Dynamic Radiation Environment Assimilation Model (DREAM) project at Los Alamos National Laboratory FX This research was conducted as part of the Dynamic Radiation Environment Assimilation Model (DREAM) project at Los Alamos National Laboratory. We are grateful to the sponsors of DREAM for financial and technical support. We would also like to thank all the individuals who, over the past several decades, have devoted their time and energy to building the SOPA and ESP instruments, supporting their operation in flight, and processing the data archives. NR 39 TC 60 Z9 62 U1 0 U2 11 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 FEB 17 PY 2011 VL 116 AR A02213 DI 10.1029/2010JA015735 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 723UZ UT WOS:000287534100001 ER PT J AU Chiou, JW Ray, SC Tsai, HM Pao, CW Chien, FZ Pong, WF Tseng, CH Wu, JJ Tsai, MH Chen, CH Lin, HJ Lee, JF Guo, JH AF Chiou, J. W. Ray, S. C. Tsai, H. M. Pao, C. W. Chien, F. Z. Pong, W. F. Tseng, C. H. Wu, J. J. Tsai, M. -H. Chen, C. -H. Lin, H. J. Lee, J. F. Guo, J. -H. TI Correlation between Electronic Structures and Photocatalytic Activities of Nanocrystalline-(Au, Ag, and Pt) Particles on the Surface of ZnO Nanorods SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID FERMI-LEVEL EQUILIBRATION; SCANNING PHOTOELECTRON MICROSCOPY; RAY-ABSORPTION SPECTROSCOPY; NANOSTRUCTURED MATERIALS; AU NANOPARTICLES AB O K-, Au, Ag and Pt L(3)-edge X-ray absorption near-edge structure (XANES), X-ray emission spectroscopy, and scanning photoelectron microscopy (SPEM) measurements have been performed to study the correlation between the electronic structures and photocatalytic activities of nanocrystalline (nc)-(Au, Ag, and Pt) particles on the surface of ZnO nanorods (ZnO-NRs). The O K-edge XANES spectra reveal greater occupation of the O 2p orbitals, i.e., a greater negative effective charge of the O ions, in nc-Pt/ZnO-NRs than of nc-(Au, Ag)/ZnO-NRs. This result suggests that nc-Pt particles have weaker photocatalytic activities than those of nc-(Au, Ag) particles on the surface of ZnO-NRs. Well-defined bandgaps of nanoparticle-coated ZnO-NRs increase in the order Au (3.3 eV) -> Pt (3.5 eV) -> Ag (3.6 eV), which can be correlated with an decreasing Pauling's electronegativity and a reduction of the screening effect. The valence-band SPEM measurement of nc-(Au, Ag, and Pt)/ZnO-NRs does not support the general argument that the Fermi levels of the (Au, Ag)/semiconductor composites are shifted toward the conduction-band edge relative to that of the Pt/semiconductor composite. C1 [Ray, S. C.; Tsai, H. M.; Pao, C. W.; Chien, F. Z.; Pong, W. F.] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan. [Chiou, J. W.] Natl Univ Kaohsiung, Dept Appl Phys, Kaohsiung 811, Taiwan. [Ray, S. C.] Univ Witwatersrand, Sch Phys, ZA-2050 Wits, Johannesburg, South Africa. [Pao, C. W.; Chen, C. -H.; Lin, H. J.; Lee, J. F.] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan. [Tseng, C. H.; Wu, J. J.] Natl Cheng Kung Univ, Dept Chem Engn, Tainan 701, Taiwan. [Tsai, M. -H.] Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 804, Taiwan. [Guo, J. -H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Ray, SC (reprint author), Tamkang Univ, Dept Phys, Tamsui 251, Taiwan. EM raysekhar@rediffmail.com; wfpong@mail.tku.edu.tw RI Wu, Jih-Jen/G-3513-2013 OI Wu, Jih-Jen/0000-0001-5535-5878 FU National Science Council of Taiwan [NSC 97-2112-M390-002-MY2, NSC96-2112-M032-012-MY3] FX The authors J.W.C. and W.F.P.) acknowledge the National Science Council of Taiwan for financial support under Contract Nos. NSC 97-2112-M390-002-MY2 and NSC96-2112-M032-012-MY3. NR 19 TC 46 Z9 46 U1 3 U2 65 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 FEB 17 PY 2011 VL 115 IS 6 BP 2650 EP 2655 DI 10.1021/jp110075j PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 717RS UT WOS:000287065700007 ER PT J AU Sharma, R Reddy, S AF Sharma, Rishi Reddy, Sanjay TI Anisotropic electronic screening and damping in magnetars SO PHYSICAL REVIEW C LA English DT Article ID MAGNETIZED NEUTRON-STAR; OSCILLATIONS; SURFACE; FIELDS; MATTER; GAS AB We calculate the screening of the ion-ion potential due to electrons, in the presence of a large background magnetic field, at densities of relevance to neutron star crusts. Using the standard approach to incorporate electronic screening through the one-loop polarization function, we show that the magnetic field produces important corrections at both short and long distances. In extreme fields, realized in highly magnetized neutron stars called magnetars, electrons occupy only the lowest Landau levels in the relatively low-density region of the crust. Here our results show that the screening length for Coulomb interactions between ions can be smaller than the inter-ion spacing. More interestingly, we find that the screening is anisotropic, and the screened potential between two static charges exhibits long-range Friedel oscillations parallel to the magnetic field. This long-range oscillatory behavior is likely to affect the lattice structure of ions and can possibly create anisotropic structures in the magnetar crusts. We also calculate the imaginary part of the electron polarization function, which determines the spectrum of electron-hole excitations and plays a role in damping lattice phonon excitations. We demonstrate that even for modest magnetic fields this damping is highly anisotropic and will likely lead to anisotropic phonon heat transport in the outer neutron star crust. C1 [Sharma, Rishi; Reddy, Sanjay] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Sharma, R (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. NR 19 TC 5 Z9 5 U1 1 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD FEB 17 PY 2011 VL 83 IS 2 AR 025803 DI 10.1103/PhysRevC.83.025803 PG 12 WC Physics, Nuclear SC Physics GA 723DB UT WOS:000287485300002 ER PT J AU Di Santo, E Santos, M Michelini, MC Marcalo, J Russo, N Gibson, JK AF Di Santo, Emanuela Santos, Marta Michelini, Maria C. Marcalo, Joaquin Russo, Nino Gibson, John K. TI Gas-Phase Reactions of the Bare Th2+ and U2+ Ions with Small Alkanes, CH4, C2H6, and C3H8: Experimental and Theoretical Study of Elementary Organoactinide Chemistry SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID RESONANCE MASS-SPECTROMETRY; THERMODYNAMICALLY STABLE DICATIONS; CHARGE-TRANSFER REACTIONS; KINETIC-ENERGY RELEASE; H BOND ACTIVATION; MOLECULE REACTIONS; TRANSITION-METAL; URANIUM IONS; BIMOLECULAR REACTIONS; LANTHANIDE CATIONS AB The gas-phase reactions of two dipositive actinide ions, Th2+ and U2+, with CH4, C2H6, and C3H8 were studied by both experiment and theory. Fourier transform ion cyclotron resonance mass spectrometry was employed to study the bimolecular ion-molecule reactions; the potential energy profiles (PEPs) for the reactions, both observed and nonobserved, were computed by density functional theory (DFT). The experiments revealed that Th2+ reacts with all three alkanes, including CH4 to produce ThCH22+, whereas U2+ reacts with C2H6 and C3H8, with different product distributions than for Th2+. The comparative reactivities of Th2+ and U2+ toward CH4 are well explained by the computed PEPs. The PEPs for the reactions with C2H6 effectively rationalize the observed reaction products, ThC2H22+ and UC2H42+. For C3H8 several reaction products were experimentally observed; these and additional potential reaction pathways were computed. The DFT results for the reactions with C3H8 are consistent with the observed reactions and the different products observed for Th2+ and U2+; however, several exothermic products which emerge from energetically favorable PEPs were not experimentally observed. The comparison between experiment and theory reveals that DFT can effectively exclude unfavorable reaction pathways, due to energetic barriers and/or endothermic products, and can predict energetic differences in similar reaction pathways for different ions. However, and not surprisingly, a simple evaluation of the PEP features is insufficient to reliably exclude energetically favorable pathways. The computed PEPs, which all proceed by insertion, were used to evaluate the relationship between the energetics of the bare Th2+ and U2+ ions and the energies for C-H and C-C activation. It was found that the computed energetics for insertion are entirely consistent with the empirical model which relates insertion efficiency to the energy needed to promote the An(2+) ion from its ground state to a prepared divalent state with two non-5f valence electrons (6d(2)) suitable for bond formation in C-An(2+)-H and C-An(2+)-C activated intermediates. C1 [Di Santo, Emanuela; Michelini, Maria C.; Russo, Nino] Univ Calabria, Dipartimento Chim, I-87030 Arcavacata Di Rende, Italy. [Santos, Marta; Marcalo, Joaquin] Inst Tecnol & Nucl, Unidade Ciencias Quim & Radiofarmaceut, P-2686953 Sacavem, Portugal. [Gibson, John K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Michelini, MC (reprint author), Univ Calabria, Dipartimento Chim, Via P Bucci,Cubo 14 C, I-87030 Arcavacata Di Rende, Italy. EM mc.michelini@unical.it; jkgibson@lbl.gov RI Marcalo, Joaquim/J-5476-2013; PTMS, RNEM/C-1589-2014; Santos, Marta/A-2411-2012; OI Marcalo, Joaquim/0000-0001-7580-057X; Santos, Marta/0000-0002-8755-9442; Nino, Russo/0000-0003-3826-3386 FU Universita degli Studi della Calabria; HYPOMAP [233482]; Fundacao para a Ciencia e a Tecnologia (FCT) [PPCDT/QUI/58222/2004]; Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences, of the U.S. Department of Energy at Lawrence Berkeley National Laboratory (LBNL) [DE-AC02-05CH11231]; FCT FX This work was supported by the Universita degli Studi della Calabria, by FP7 Project HYPOMAP (Project 233482), by Fundacao para a Ciencia e a Tecnologia (FCT) under Contract PPCDT/QUI/58222/2004, and by the Director, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences, of the U.S. Department of Energy at Lawrence Berkeley National Laboratory (LBNL) under Contract DE-AC02-05CH11231. The CINECA super-computing center (Casalecchio di Reno, Italy) is gratefully acknowledged for providing computational resources. M.C.M. is grateful for the opportunity to be a Guest Scientist in the Chemical Sciences Division at LBNL. M.S. is grateful to FCT for a Ph.D. grant. We are grateful to Drs. Antonio Pires de Matos and Richard G. Haire for their invaluable support in this project. NR 80 TC 22 Z9 22 U1 2 U2 37 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 FEB 16 PY 2011 VL 133 IS 6 BP 1955 EP 1970 DI 10.1021/ja109621n PG 16 WC Chemistry, Multidisciplinary SC Chemistry GA 727VU UT WOS:000287831800068 PM 21265548 ER PT J AU Soderquist, CZ Johnsen, AM McNamara, BK Hanson, BD Chenault, JW Carson, KJ Peper, SM AF Soderquist, Chuck Z. Johnsen, Amanda M. McNamara, Bruce K. Hanson, Brady D. Chenault, Jeffrey W. Carson, Katharine J. Peper, Shane M. TI Dissolution of Irradiated Commercial UO2 Fuels in Ammonium Carbonate and Hydrogen Peroxide SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH LA English DT Article ID URANYL-CARBONATE; NUCLEAR-FUEL; OXIDATIVE DISSOLUTION; COMPLEXES; CHEMISTRY; URANIUM; PRECIPITATION; CONVERSION; ACTINIDES; DIOXIDE AB We propose and test a disposition path for irradiated nuclear fuel using ammonium carbonate and hydrogen peroxide media. We demonstrate on a 13 g scale that >98% of the irradiated fuel dissolves. Subsequent expulsion of carbonate from the dissolver solution precipitates >95% of the plutonium, americium, and curium and substantial amounts of fission products, effectively partitioning the fuel at the dissolution step. Uranium can be easily recovered from solution by any of several means, such as ion exchange, solvent extraction, or direct precipitation. Ammonium carbonate can be evaporated from solution and recovered for reuse, leaving an extremely compact volume of fission products, transactinides, and uranium. Stack emissions are predicted to be less toxic, less radioactive, chemically simpler, and simpler to treat than those from the conventional PUREX process. C1 [Soderquist, Chuck Z.; Johnsen, Amanda M.; McNamara, Bruce K.; Hanson, Brady D.; Chenault, Jeffrey W.; Carson, Katharine J.; Peper, Shane M.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Soderquist, CZ (reprint author), Pacific NW Natl Lab, POB 999,Mail Stop P7-25, Richland, WA 99352 USA. EM chuck.soderquist@pnl.gov FU Advanced Fuel Cycle Initiative Separations Campaign; U.S. Department of Energy (DOE) [DE-AC05-76RL1830] FX We would like to acknowledge the Advanced Fuel Cycle Initiative Separations Campaign for financially supporting this work. Pacific Northwest National Laboratory is operated for the U.S. Department of Energy (DOE) by Battelle under Contract DE-AC05-76RL1830. NR 39 TC 10 Z9 10 U1 4 U2 23 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0888-5885 J9 IND ENG CHEM RES JI Ind. Eng. Chem. Res. PD FEB 16 PY 2011 VL 50 IS 4 BP 1813 EP 1818 DI 10.1021/ie101386n PG 6 WC Engineering, Chemical SC Engineering GA 717MC UT WOS:000287049700002 ER PT J AU Monazam, ER Shadle, LJ AF Monazam, Esmail R. Shadle, Lawrence J. TI Method and Prediction of Transition Velocities in a Circulating Fluidized Bed's Riser SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH LA English DT Article ID REGIMES; TURBULENT; EXPANSION AB A series of experiments were conducted using four different particles (812 mu m cork, 60 mu m glass beads, 180 mu m glass beads, and 750 mu m phosphorescent polyethylene beads) in a 0.3 m diameter circulating fluidized bed (CFB) cold model to evaluate the transitional velocities for different transport flow regimes. Transitional velocities were obtained by measuring the time required to empty out all solids from the riser of the CFB after cutting off solids flow under various gas velocities after attaining maximum solids loading. This method has been shown to involve less influence of the operating conditions such as solid inventory, solid flow rate, and solids feeding system and provide the limiting responses for the specific geometric configuration tested. Correlations were developed to predict these transitional velocities in terms of gas and solids properties in NETL's cold flow test facility. Drag coefficients were then determined using force balance at each of these transitions. The resulting expressions for the transitions were compared with the literature and the best available expressions to assess their validity and test their range of applicability. It is concluded that the transient method allows researchers to identify transition velocities between transport regimes based upon dynamic riser response and apparent gas solids drag and can thus readily identify the potential for rapid buildup of solids inventory in the riser. C1 [Monazam, Esmail R.; Shadle, Lawrence J.] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. [Monazam, Esmail R.] REM Engn Serv, Morgantown, WV 26505 USA. RP Shadle, LJ (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA. EM lshadl@netl.doe.gov OI Shadle, Lawrence/0000-0002-6283-3628 FU Department of Energy FX The authors acknowledge the Department of Energy for funding the research through the Fossil Energy's Integrated Gasification Combined Cycle program. NR 22 TC 3 Z9 3 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0888-5885 J9 IND ENG CHEM RES JI Ind. Eng. Chem. Res. PD FEB 16 PY 2011 VL 50 IS 4 BP 1921 EP 1927 DI 10.1021/ie1013376 PG 7 WC Engineering, Chemical SC Engineering GA 717MC UT WOS:000287049700016 ER PT J AU Tobias, BJ Classen, IGJ Domier, CW Heidbrink, WW Luhmann, NC Nazikian, R Park, HK Spong, DA Van Zeeland, MA AF Tobias, B. J. Classen, I. G. J. Domier, C. W. Heidbrink, W. W. Luhmann, N. C., Jr. Nazikian, R. Park, H. K. Spong, D. A. Van Zeeland, M. A. TI Fast Ion Induced Shearing of 2D Alfven Eigenmodes Measured by Electron Cyclotron Emission Imaging SO PHYSICAL REVIEW LETTERS LA English DT Article ID AXISYMMETRICAL TOROIDAL PLASMAS; GYROFLUID MODEL; SPECTRUM; PROFILE AB Two-dimensional images of electron temperature perturbations are obtained with electron cyclotron emission imaging (ECEI) on the DIII-D tokamak and compared to Alfven eigenmode structures obtained by numerical modeling using both ideal MHD and hybrid MHD-gyrofluid codes. While many features of the observations are found to be in excellent agreement with simulations using an ideal MHD code (NOVA), other characteristics distinctly reveal the influence of fast ions on the mode structures. These features are found to be well described by the nonperturbative hybrid MHD-gyrofluid model TAEFL. C1 [Tobias, B. J.; Domier, C. W.; Luhmann, N. C., Jr.] Univ Calif Davis, Davis, CA 95616 USA. [Classen, I. G. J.] FOM Inst Plasma Phys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands. [Heidbrink, W. W.] Univ Calif Irvine, Irvine, CA 92697 USA. [Nazikian, R.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Park, H. K.] POSTECH Pohang Univ Sci & Technol, Pohang, Gyunbuk, South Korea. [Spong, D. A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Van Zeeland, M. A.] Gen Atom Co, San Diego, CA 92186 USA. RP Tobias, BJ (reprint author), Univ Calif Davis, Davis, CA 95616 USA. RI Spong, Donald/C-6887-2012 OI Spong, Donald/0000-0003-2370-1873 FU U.S. Department of Energy [DE-FG02-99ER54531, SC-G903402, DE-AC02-09CH11466, DE-AC05-00OR22725, DE-FC02-04ER54698]; NWO; POSTECH; Association EURATOM-FOM FX This work supported in part by the U.S. Department of Energy under DE-FG02-99ER54531, SC-G903402, DE-AC02-09CH11466, DE-AC05-00OR22725 and DE-FC02-04ER54698. This work also supported by NWO, POSTECH, and the Association EURATOM-FOM. In addition, the authors are immensely grateful to all members of the UC Davis Plasma Diagnostics Group, PPPL engineering support, and the DIII-D team, without whose tireless work this project would not have been possible. NR 25 TC 52 Z9 52 U1 0 U2 5 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 FEB 16 PY 2011 VL 106 IS 7 AR 075003 DI 10.1103/PhysRevLett.106.075003 PG 4 WC Physics, Multidisciplinary SC Physics GA 721XY UT WOS:000287392300005 PM 21405522 ER PT J AU Dube, N Presley, AD Shu, JY Xu, T AF Dube, Nikhil Presley, Andrew D. Shu, Jessica Y. Xu, Ting TI Amphiphilic Peptide-Polymer Conjugates with Side-Conjugation SO MACROMOLECULAR RAPID COMMUNICATIONS LA English DT Review DE amphiphilic peptide-polymer conjugate; coiled-coil helix bundle; conjugated polymer; hydrophobicity; protein structure; nanoparticles ID HYBRID BLOCK-COPOLYMERS; DE-NOVO DESIGN; 4-HELIX BUNDLE PEPTIDES; ION-CHANNEL PROTEINS; ROD-COIL; MOLECULAR ARCHITECTURE; DIBLOCK COPOLYMERS; GIANT AMPHIPHILES; COFACTOR RECONSTITUTION; ELECTRON-TRANSFER AB Polymers conjugated to the exterior of a protein mediate its interactions with surroundings, enhance its processability and can be used to direct its macroscopic assemblies. Most studies to date have focused on peptide-polymer conjugates based on hydrophilic polymers. Engineering amphiphilicity into protein motifs by covalently linking hydrophobic polymers has the potential to interface peptides and proteins with synthetic polymers, organic solvents, and lipids to fabricate functional hybrid materials. Here, we synthesized amphiphilic peptide-polymer conjugates in which a hydrophobic polymer is conjugated to the exterior of a heme-binding four-helix bundle and systematically investigated the effects of the hydrophobicity of the conjugated polymer on the peptide structure and the integrity of the heme-binding pocket. In aqueous solution with surfactants present, the side-conjugated hydrophobic polymers unfold peptides and may induce an alpha-helix to beta-sheet conformational transition. These effects decrease as the polymer becomes less hydrophobic and directly correlate with the polymer hydrophobicity. Upon adding organic solvent to solubilize the hydrophobic polymers, however, the deleterious effects of hydrophobic polymers on the peptide structures can be eliminated. Present studies demonstrate that protein structure is sensitive to the local environment. It is feasible to dissolve amphiphilic peptide-polymer conjugates in organic solvents to enhance their solution processability while maintaining the protein structures. C1 [Dube, Nikhil; Presley, Andrew D.; Shu, Jessica Y.; Xu, Ting] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. [Xu, Ting] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Xu, Ting] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Xu, T (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. EM tingxu@berkeley.edu FU U.S. Department of Energy through Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work is supported by the U.S. Department of Energy through the Hybrid Biomaterials Scattering Program at Lawrence Berkeley National Laboratory under contract DE-AC02-05CH11231. CD measurements at the Molecular Foundry were supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. N. D. would like to thank He Dong for valuable suggestions and helpful discussions. We also thank Sijun Liu for her assistance with the schematic drawings. NR 75 TC 9 Z9 9 U1 8 U2 67 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 1022-1336 J9 MACROMOL RAPID COMM JI Macromol. Rapid Commun. PD FEB 16 PY 2011 VL 32 IS 4 BP 344 EP 353 DI 10.1002/marc.201000603 PG 10 WC Polymer Science SC Polymer Science GA 718ZF UT WOS:000287164500001 PM 21433182 ER PT J AU Kini, RN Ptak, AJ Fluegel, B France, R Reedy, RC Mascarenhas, A AF Kini, R. N. Ptak, A. J. Fluegel, B. France, R. Reedy, R. C. Mascarenhas, A. TI Effect of Bi alloying on the hole transport in the dilute bismide alloy GaAs1-xBix SO PHYSICAL REVIEW B LA English DT Article ID MOLECULAR-BEAM EPITAXY; BAND-GAP; SEMICONDUCTORS; GAAS; SPECTROSCOPY; NITROGEN AB We studied the effect of Bi incorporation on the hole mobility in the dilute bismide alloy GaAs1-xBix using electrical transport ( Hall) and photoluminescence (PL) techniques. Our measurements show that the hole mobility decreases with increasing Bi concentration. Analysis of the temperature-dependent Hall transport data of p-type GaAsBi epilayers along with low-temperature PL measurements of p-doped and undoped epilayers suggests that Bi incorporation results in the formation of several trap levels above the valence band, which we attribute to Bi-Bi pair states. The decrease in hole mobility with increasing Bi concentration can be explained as being caused by scattering at the isolated Bi and the Bi-Bi pair states. We also observed a decrease in hole concentration with Bi incorporation. We believe that Bi-Ga heteroantisite defects compensate the acceptors, thus reducing the effective hole concentration. C1 [Kini, R. N.; Ptak, A. J.; Fluegel, B.; France, R.; Reedy, R. C.; Mascarenhas, A.] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Kini, RN (reprint author), Indian Inst Sci Educ & Res, Thiruvananthapuram, Kerala, India. EM rajeevkini@iisertvm.ac.in RI Kini, Rajeev/D-2342-2009 OI Kini, Rajeev/0000-0002-3305-9346 FU Department of Energy Office of Science, Basic Energy Sciences with the National Renewable Energy Laboratory [DE-AC36-08GO28308] FX The authors would like to thank Michelle Young for processing the samples. This work was supported by the Department of Energy Office of Science, Basic Energy Sciences under Contract No. DE-AC36-08GO28308 with the National Renewable Energy Laboratory. NR 28 TC 34 Z9 34 U1 4 U2 54 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 16 PY 2011 VL 83 IS 7 AR 075307 DI 10.1103/PhysRevB.83.075307 PG 6 WC Physics, Condensed Matter SC Physics GA 723CR UT WOS:000287484300004 ER PT J AU Kress, JD Cohen, JS Kilcrease, DP Horner, DA Collins, LA AF Kress, J. D. Cohen, James S. Kilcrease, D. P. Horner, D. A. Collins, L. A. TI Quantum molecular dynamics simulations of transport properties in liquid and dense-plasma plutonium SO PHYSICAL REVIEW E LA English DT Article ID ONE-COMPONENT PLASMA; TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; STATISTICAL-MECHANICS; IONIZED MATTER; COEFFICIENTS; VISCOSITY; METALS; PU; DIFFUSION AB We have calculated the viscosity and self-diffusion coefficients of plutonium in the liquid phase using quantum molecular dynamics (QMD) and in the dense-plasma phase using orbital-free molecular dynamics (OFMD), as well as in the intermediate warm dense matter regime with both methods. Our liquid metal results for viscosity are about 40% lower than measured experimentally, whereas a previous calculation using an empirical interatomic potential (modified embedded-atom method) obtained results 3-4 times larger than the experiment. The QMD and OFMD results agree well at the intermediate temperatures. The calculations in the dense-plasma regime for temperatures from 50 to 5000 eV and densities about 1-5 times ambient are compared with the one-component plasma (OCP) model, using effective charges given by the average-atom code INFERNO. The INFERNO-OCP model results agree with the OFMD to within about a factor of 2, except for the viscosity at temperatures less than about 100 eV, where the disagreement is greater. A Stokes-Einstein relationship of the viscosities and diffusion coefficients is found to hold fairly well separately in both the liquid and dense-plasma regimes. C1 [Kress, J. D.; Cohen, James S.; Kilcrease, D. P.; Horner, D. A.; Collins, L. A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Kress, JD (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. OI Kilcrease, David/0000-0002-2319-5934 FU Advanced Simulation and Computing Program; Campaign 4; National Nuclear Security Administration of the US Department of Energy [DE-AC52-06NA25396] FX We wish to acknowledge useful conversations and suggestions by Brad Holian, Frank Cherne, John Wills, Sven Rudin, Eric Schwegler, and Carl Greeff. We specially thank Flavien Lambert for providing his OFMD code and for continued consultations on the use of the OFMD code. This work was supported by the Advanced Simulation and Computing Program and Campaign 4. The Los Alamos National Laboratory is operated by Los Alamos National Security, LLC for the National Nuclear Security Administration of the US Department of Energy under Contract No. DE-AC52-06NA25396. NR 51 TC 24 Z9 24 U1 2 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 EI 1550-2376 J9 PHYS REV E JI Phys. Rev. E PD FEB 16 PY 2011 VL 83 IS 2 AR 026404 DI 10.1103/PhysRevE.83.026404 PN 2 PG 10 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 721YT UT WOS:000287395000001 PM 21405915 ER PT J AU Gholizadeh, R Katsouleas, T Huang, C Mori, WB Muggli, P AF Gholizadeh, R. Katsouleas, T. Huang, C. Mori, W. B. Muggli, P. TI Effect of temperature on ion motion in future plasma wakefield accelerators SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID ELECTRONS AB We study the effect of plasma temperature on ion motion in a plasma wakefield accelerator with parameters typical of a future high-energy accelerator. We show that the collapse of the plasma ions caused by the extremely high fields of ultradense electron bunches can be prevented only by a very high plasma ion temperature. C1 [Gholizadeh, R.; Muggli, P.] Univ So Calif, Los Angeles, CA 90089 USA. [Katsouleas, T.] Duke Univ, Durham, NC 27708 USA. [Huang, C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Mori, W. B.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. RP Gholizadeh, R (reprint author), Univ So Calif, Los Angeles, CA 90089 USA. OI Huang, Chengkun/0000-0002-3176-8042 FU Department of Energy [DE-FG02-92ER40745] FX The authors would like to thank USC High Performance Computations & Communications (HPCC). This work is supported by Department of Energy Contract No. DE-FG02-92ER40745. NR 14 TC 1 Z9 1 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB 16 PY 2011 VL 14 IS 2 AR 021303 DI 10.1103/PhysRevSTAB.14.021303 PG 5 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 721YW UT WOS:000287395400002 ER PT J AU Jing, C Power, JG Conde, M Liu, W Yusof, Z Kanareykin, A Gai, W AF Jing, C. Power, J. G. Conde, M. Liu, W. Yusof, Z. Kanareykin, A. Gai, W. TI Increasing the transformer ratio at the Argonne wakefield accelerator SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID WAKE-FIELD ACCELERATION; ULTRASHORT PULSES AB The transformer ratio is defined as the ratio of the maximum energy gain of the witness bunch to the maximum energy loss experienced by the drive bunch (or a bunch within a multidrive bunch train). This plays an important role in the collinear wakefield acceleration scheme. A high transformer ratio is desirable since it leads to a higher overall efficiency under similar conditions (e. g. the same beam loading, the same structure, etc.). One technique to enhance the transformer ratio beyond the ordinary limit of 2 is to use a ramped bunch train. The first experimental demonstration observed a transformer ratio only marginally above 2 due to the mismatch between the drive microbunch length and the frequency of the accelerating structure [C. Jing, A. Kanareykin, J. Power, M. Conde, Z. Yusof, P. Schoessow, and W. Gai, Phys. Rev. Lett. 98, 144801 (2007)]. Recently, we revisited this experiment with an optimized microbunch length using a UV laser stacking technique at the Argonne Wakefield Accelerator facility and measured a transformer ratio of 3.4. Measurements and data analysis from these experiments are presented in detail. C1 [Jing, C.; Kanareykin, A.] Euclid Techlabs LLC, Solon, OH 44139 USA. [Jing, C.; Power, J. G.; Conde, M.; Liu, W.; Yusof, Z.; Gai, W.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. RP Jing, C (reprint author), Euclid Techlabs LLC, 5900 Harper Rd, Solon, OH 44139 USA. FU Department of Energy, Office of High Energy Physics [W-31-109-ENG-38] FX This work was supported by the Department of Energy, Office of High Energy Physics, under Contract No. W-31-109-ENG-38. NR 10 TC 12 Z9 12 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB 16 PY 2011 VL 14 IS 2 AR 021302 DI 10.1103/PhysRevSTAB.14.021302 PG 6 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 721YW UT WOS:000287395400001 ER PT J AU Johnson, JA Benmore, CJ Holland, D Du, J Beuneu, B Mekki, A AF Johnson, J. A. Benmore, C. J. Holland, D. Du, J. Beuneu, B. Mekki, A. TI Influence of rare-earth ions on SiO2-Na2O-RE2O3 glass structure SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Article ID MOLECULAR-DYNAMICS SIMULATION; SODIUM-SILICATE GLASSES; LA2O3-NA2O-SIO2 GLASSES; ISOTOPIC-SUBSTITUTION; NEUTRON-DIFFRACTION; LA3+ CATIONS; ENVIRONMENT; EPR; ND AB Praseodymium and europium sodium silicate glasses of nominal composition (SiO2)(0.70-x)(Na2O)(0.30)(RE2O3)(x), where RE is the rare earth and 0 <= x <= 0.10, were studied by neutron and high-energy x-ray scattering and classical molecular dynamics simulations. The observation of a significant x-ray intensity in doped as compared to un-doped glasses is indicative of RE-RE correlations at a distance of similar to 3.7-3.9 angstrom, much shorter than would be expected for a homogeneous distribution, suggesting that clustering of the rare-earth cations occurs in both these glass systems at low concentrations. Above x = 0.075 (nominal), minimal changes in this region indicate that the RE atoms are incorporated much more randomly into the glass structure. The molecular dynamics simulations suggest that the rare-earth ions enter the sodium-rich regions in the sodium silicate glasses and act as modifiers. A cluster analysis performed on the model systems indicates that the tendency for clustering is higher in praseodymium-containing glasses than in the europium glasses. C1 [Johnson, J. A.] Univ Tennessee, Inst Space, Dept Mat Sci & Engn, Tullahoma, TN 37388 USA. [Benmore, C. J.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Holland, D.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Du, J.] Univ N Texas, Dept Mat Sci & Engn, Denton, TX 76203 USA. [Beuneu, B.] CEA Saclay, CEA CNRS, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France. [Mekki, A.] King Fahd Univ Petr & Minerals, Dept Phys, Dhahran 31261, Saudi Arabia. RP Johnson, JA (reprint author), Univ Tennessee, Inst Space, Dept Mat Sci & Engn, Tullahoma, TN 37388 USA. EM jjohnson@utsi.edu RI Du, Jincheng/A-8052-2011; Johnson, Jacqueline/P-4844-2014; OI Johnson, Jacqueline/0000-0003-0830-9275; Benmore, Chris/0000-0001-7007-7749 FU US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; National Science Foundation [DMR0907593] FX Use of the Advanced Photon Source and Intense Pulsed Neutron Source at Argonne National Laboratory was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors thank Laboratoire Leon Brillouin (CEA, Saclay) for allocating neutron beam time at the 7C2 diffractometer. JD acknowledges the financial support of the National Science Foundation (DMR0907593). NR 42 TC 11 Z9 11 U1 0 U2 21 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD FEB 16 PY 2011 VL 23 IS 6 AR 065404 DI 10.1088/0953-8984/23/6/065404 PG 13 WC Physics, Condensed Matter SC Physics GA 711XE UT WOS:000286624000011 PM 21406929 ER PT J AU Olsen, BN Schlesinger, PH Ory, DS Baker, NA AF Olsen, Brett N. Schlesinger, Paul H. Ory, Daniel S. Baker, Nathan A. TI 25-Hydroxycholesterol Increases the Availability of Cholesterol in Phospholipid Membranes SO BIOPHYSICAL JOURNAL LA English DT Article ID MOLECULAR-DYNAMICS; MODEL MEMBRANES; LIPID-BILAYERS; ACID SYNTHESIS; LXR-ALPHA; HOMEOSTASIS; PROTEIN; SIMULATION; RECEPTORS; OXYSTEROL AB Side-chain oxysterols are enzymatically generated oxidation products of cholesterol that serve a central role in mediating cholesterol homeostasis. Recent work has shown that side-chain oxysterols, such as 25-hydroxycholesterol (25-HC), alter membrane structure in very different ways from cholesterol, suggesting a possible mechanism for how these oxysterols regulate cholesterol homeostasis. Here we extend our previous work by using molecular-dynamics simulations of 25-HC and cholesterol mixtures in 1-palmitoyl-2-oleoyl-phosphatidylcholine bilayers to examine the combined effects of 25-HC and cholesterol in the same bilayer. 25-HC causes larger changes in membrane structure when added to cholesterol-containing membranes than when added to cholesterol-free membranes. We also find that the presence of 25-HC changes the position, orientation, and solvent accessibility of cholesterol, shifting it into the water interface and thus increasing its availability to external acceptors. This is consistent with experimental results showing that oxysterols can trigger cholesterol trafficking from the plasma membrane to the endoplasmic reticulum. These effects provide a potential mechanism for 25-HC-mediated regulation of cholesterol trafficking and homeostasis through modulation of cholesterol availability. C1 [Baker, Nathan A.] Pacific NW Natl Lab, Natl Secur Directorate, Richland, WA 99352 USA. [Olsen, Brett N.] Washington Univ, Sch Med, Dept Med, Diabet Cardiovasc Dis Ctr, St Louis, MO 63110 USA. [Schlesinger, Paul H.] Washington Univ, Dept Cell Biol & Physiol, St Louis, MO USA. RP Baker, NA (reprint author), Pacific NW Natl Lab, Natl Secur Directorate, Richland, WA 99352 USA. EM nathan.baker@pnl.gov RI Schlesinger, Paul/C-6049-2012; Baker, Nathan/A-8605-2010 OI Baker, Nathan/0000-0002-5892-6506 FU National Institutes of Health [U54 CA11934205, R01 GM069702, R01 HL067773]; NIH [NIH T32 GM007067]; Texas [TG-MCB060053, TG-MCA08X003]; National Biomedical Computation Resource [NIH P41 RR0860516] FX This work was supported by the National Institutes of Health (grants U54 CA11934205 and R01 GM069702 to N.A.B., and R01 HL067773 to D.S.O.). B.N.O. was supported by a Cellular and Molecular Biology Training Grant (NIH T32 GM007067). Computational resources were provided by the Texas Advanced Computing Center through Teragrid grants TG-MCB060053 and TG-MCA08X003, as well as the National Biomedical Computation Resource (NIH P41 RR0860516). NR 39 TC 19 Z9 19 U1 0 U2 12 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 16 PY 2011 VL 100 IS 4 BP 948 EP 956 DI 10.1016/j.bpj.2010.12.3728 PG 9 WC Biophysics SC Biophysics GA 725CY UT WOS:000287624000021 PM 21320439 ER PT J AU McComas, DJ Dayeh, MA Funsten, HO Fuselier, SA Goldstein, J Jahn, JM Janzen, P Mitchell, DG Petrinec, SM Reisenfeld, DB Schwadron, NA AF McComas, D. J. Dayeh, M. A. Funsten, H. O. Fuselier, S. A. Goldstein, J. Jahn, J. -M. Janzen, P. Mitchell, D. G. Petrinec, S. M. Reisenfeld, D. B. Schwadron, N. A. TI First IBEX observations of the terrestrial plasma sheet and a possible disconnection event SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article ID ENERGETIC NEUTRAL ATOM; INTERSTELLAR BOUNDARY EXPLORER; RING CURRENT; EARTHS MAGNETOSPHERE; MENA IMAGES; STORM-TIME; SUBSTORM; MAGNETOTAIL; DYNAMICS AB The Interstellar Boundary Explorer (IBEX) mission has recently provided the first all-sky maps of energetic neutral atoms (ENAs) emitted from the edge of the heliosphere as well as the first observations of ENAs from the Moon and from the magnetosheath stagnation region at the nose of the magnetosphere. This study provides the first IBEX images of the ENA emissions from the nightside magnetosphere and plasma sheet. We show images from two IBEX orbits: one that displays typical plasma sheet emissions, which correlate reasonably well with a model magnetic field, and a second that shows a significant intensification that may indicate a near-Earth (similar to 10 R-E behind the Earth) disconnection event. IBEX observations from similar to 0.5-6 keV indicate the simultaneous addition of both a hot (several keV) and colder (similar to 700 eV) component during the intensification; if IBEX directly observed magnetic reconnection in the magnetotail, the hot component may signify the plasma energization. C1 [McComas, D. J.; Dayeh, M. A.; Goldstein, J.; Jahn, J. -M.; Schwadron, N. A.] SW Res Inst, San Antonio, TX 78228 USA. [Funsten, H. O.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Fuselier, S. A.; Petrinec, S. M.] Lockheed Martin Adv Technol Ctr, Palo Alto, CA 94304 USA. [Janzen, P.; Reisenfeld, D. B.] Univ Montana, Dept Phys & Astron, Missoula, MT 59812 USA. [Mitchell, D. G.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA. [Schwadron, N. A.] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA. [McComas, D. J.; Goldstein, J.; Jahn, J. -M.] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA. RP McComas, DJ (reprint author), SW Res Inst, 6220 Culebra Rd, San Antonio, TX 78228 USA. EM dmccomas@swri.org RI Funsten, Herbert/A-5702-2015; Reisenfeld, Daniel/F-7614-2015 OI Funsten, Herbert/0000-0002-6817-1039; NR 43 TC 20 Z9 20 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD FEB 16 PY 2011 VL 116 AR A02211 DI 10.1029/2010JA016138 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 723UX UT WOS:000287533900003 ER PT J AU Avdeev, M Thorogood, GJ Carter, ML Kennedy, BJ Ting, J Singh, DJ Wallwork, KS AF Avdeev, Maxim Thorogood, Gordon J. Carter, Melody L. Kennedy, Brendan J. Ting, Jimmy Singh, David J. Wallwork, Kia S. TI Antiferromagnetism in a Technetium Oxide. Structure of CaTcO3 SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID NEUTRON POWDER DIFFRACTION; SINGLE-CRYSTAL; PEROVSKITE; CHEMISTRY AB The technetium perovskite CaTcO3 has been synthesized. Combining synchrotron X-ray and neutron diffraction, we found that CaTcO3 is an antiferromagnetic with a surprisingly high Neel temperature of similar to 800 K. The transition to the magnetic state does not involve a structural change, but there is obvious magnetostriction. Electronic structure calculations confirm the experimental results. C1 [Kennedy, Brendan J.; Ting, Jimmy] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia. [Avdeev, Maxim] Australian Nucl Sci & Technol Org, Bragg Inst, Menai, NSW 2234, Australia. [Thorogood, Gordon J.; Carter, Melody L.] Australian Nucl Sci & Technol Org, Inst Mat Engn, Menai, NSW 2234, Australia. [Singh, David J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Wallwork, Kia S.] Australian Synchrotron, Clayton, Vic 3168, Australia. RP Kennedy, BJ (reprint author), Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia. EM B.Kennedy@chem.usyd.edu.au RI Thorogood, Gordon/A-7411-2008; Singh, David/I-2416-2012; Avdeev, Maxim/A-5625-2008; OI Thorogood, Gordon/0000-0001-9993-7896; Avdeev, Maxim/0000-0003-2366-5809; Kennedy, Brendan/0000-0002-7187-4579 FU Australian Research Council; U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division FX We acknowledge the assistance of Mr. Terry McLeod in sample preparation. This work was, in part, performed at the powder diffraction beamline at the Australian Synchrotron. B.J.K. acknowledges the support of the Australian Research Council. Work at ORNL was supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. NR 22 TC 26 Z9 27 U1 0 U2 24 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 FEB 16 PY 2011 VL 133 IS 6 BP 1654 EP 1657 DI 10.1021/ja109431t PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 727VU UT WOS:000287831800012 PM 21268576 ER PT J AU Toulemonde, M Weber, WJ Li, GS Shutthanandan, V Kluth, P Yang, TF Wang, YG Zhang, YW AF Toulemonde, Marcel Weber, William J. Li, Guosheng Shutthanandan, Vaithiyalingam Kluth, Patrick Yang, Tengfei Wang, Yuguang Zhang, Yanwen TI Synergy of nuclear and electronic energy losses in ion-irradiation processes: The case of vitreous silicon dioxide SO PHYSICAL REVIEW B LA English DT Article ID SWIFT HEAVY-IONS; AMORPHOUS SIO2; ANISOTROPIC DEFORMATION; INORGANIC INSULATORS; TRACK FORMATION; CROSS-SECTION; FUSED-SILICA; IMPLANTATION; DAMAGE; MODEL AB Structural modification of vitreous SiO(2) by Au ion irradiation is investigated over an energy regime (similar to 0.3-15 MeV) in which the decrease of the nuclear energy loss with increasing energy is compensated by the increase of the electronic energy loss, leading to a nearly constant total energy loss of similar to 4 keV/nm. The radii of damaged zones resulting from the ion impact, deduced from changes in infrared bands as a function of ion fluence, decrease from 4.9 nm at 0.3 MeV to 2.5 and 2.6 nm at 9.8 and 14.8 MeV, respectively. Based on previous data where vitreous SiO(2) was irradiated with much higher energy Au ions, the damage zone radius increases from 2.4 nm at 22.7 MeV to 5.4 nm at 168 MeV, and a U-shaped dependence on energy is observed is observed in the energy region from 0.3 to 168 MeV. The current results demonstrate that large damage radii at low and high ion energy can be explained by the elastic or inelastic thermal spike model, respectively. In the transition regime where both nuclear and electronic energy loss are significant, a unified thermal spike model consisting of a coherent synergy of the elastic collision spike model with the inelastic thermal spike model is suggested to interpret and describe the radius evolution from the nuclear to the electronic energy regime. C1 [Weber, William J.; Zhang, Yanwen] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Toulemonde, Marcel] Univ Caen, CIMAP CEA CNRS ENSICAEN, F-14070 Caen 5, France. [Weber, William J.; Zhang, Yanwen] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Li, Guosheng; Shutthanandan, Vaithiyalingam] Pacific NW Natl Lab, Richland, WA 99352 USA. [Kluth, Patrick] Australian Natl Univ, Canberra, ACT 0200, Australia. [Yang, Tengfei; Wang, Yuguang] Peking Univ, Beijing 100871, Peoples R China. RP Zhang, YW (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. EM Zhangy1@ornl.gov RI Kluth, Patrick/A-1497-2008; Weber, William/A-4177-2008 OI Kluth, Patrick/0000-0002-1806-2432; Weber, William/0000-0002-9017-7365 FU US Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division; Department of Energy's Office of Biological and Environmental Research at Pacific Northwest National Laboratory; Australian Research Council FX Research supported by the US Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. A portion of research was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. P.K. acknowledges the Australian Research Council for support. NR 47 TC 67 Z9 68 U1 5 U2 52 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 16 PY 2011 VL 83 IS 5 AR 054106 DI 10.1103/PhysRevB.83.054106 PG 9 WC Physics, Condensed Matter SC Physics GA 721YE UT WOS:000287392900002 ER PT J AU Aaltonen, T Adelman, J Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, VE Barnett, BA Barria, P Bartos, P Bauer, G Beauchemin, PH Bedeschi, F Beecher, D Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Bhatti, A Binkley, M Bisello, D Bizjak, I Blair, RE Blocker, C Blumenfeld, B Bocci, A Bodek, A Boisvert, V Bortoletto, D Boudreau, J Boveia, A Brau, B Bridgeman, A Brigliadori, L Bromberg, C Brubaker, E Budagov, J Budd, HS Budd, S Burkett, K Busetto, G Bussey, P Buzatu, A Byrum, KL Cabrera, S Calancha, C Camarda, S Campanelli, M Campbell, M Canelli, F Canepa, A Carls, B Carlsmith, D Carosi, R Carrillo, S Carron, S Casal, B Casarsa, M Castro, A Catastini, P Cauz, D Cavaliere, V Cavalli-Sforza, M Cerri, A Cerrito, L Chang, SH Chen, YC Chertok, M Chiarelli, G Chlachidze, G Chlebana, F Cho, K Chokheli, D Chou, JP Chung, K Chung, WH Chung, YS Chwalek, T Ciobanu, CI Ciocci, MA Clark, A Clark, D Compostella, G Convery, ME Conway, J Corbo, M Cordelli, M Cox, CA Cox, DJ Crescioli, F Almenar, CC Cuevas, J Culbertson, R Cully, JC Dagenhart, D d'Ascenzo, N Datta, M Davies, T de Barbaro, P De Cecco, S Deisher, A De Lorenzo, G Dell'Orso, M Deluca, C Demortier, L Deng, J Deninno, M d'Errico, M Di Canto, A Di Ruzza, B Dittmann, JR D'Onofrio, M Donati, S Dong, P Dorigo, T Dube, S Ebina, K Elagin, A Erbacher, R Errede, D Errede, S Ershaidat, N Eusebi, R Fang, HC Farrington, S Fedorko, WT Feild, RG Feindt, M Fernandez, JP Ferrazza, C Field, R Flanagan, G Forrest, R Frank, MJ Franklin, M Freeman, JC Furic, I Gallinaro, M Galyardt, J Garberson, F Garcia, JE Garfinkel, AF Garosi, P Gerberich, H Gerdes, D Gessler, A Giagu, S Giakoumopoulou, V Giannetti, P Gibson, K Gimmell, JL Ginsburg, CM Giokaris, N Giordani, M Giromini, P Giunta, M Giurgiu, G Glagolev, V Glenzinski, D Gold, M Goldschmidt, N Golossanov, A Gomez, G Gomez-Ceballos, G Goncharov, M Gonzalez, O Gorelov, I Goshaw, AT Goulianos, K Gresele, A Grinstein, S Grosso-Pilcher, C Group, RC Grundler, U da Costa, JG Gunay-Unalan, Z Haber, C Hahn, SR Halkiadakis, E Han, BY Han, JY Happacher, F Hara, K Hare, D Hare, M Harr, RF Hartz, M Hatakeyama, K Hays, C Heck, M Heinrich, J Herndon, M Heuser, J Hewamanage, S Hidas, D Hill, CS Hirschbuehl, D Hocker, A Hou, S Houlden, M Hsu, SC Hughes, RE Huffman, BT Hurwitz, M Husemann, U Hussein, M Huston, J Incandela, J Introzzi, G Iori, M Ivanov, A James, E Jang, D Jayatilaka, B Jeon, EJ Jha, MK Jindariani, S Johnson, W Jones, M Joo, KK Jun, SY Jung, JE Junk, TR Kamon, T Kar, D Karchin, PE Kato, Y Kephart, R Ketchum, W Keung, J Khotilovich, V Kilminster, B Kim, DH Kim, HS Kim, HW Kim, JE Kim, MJ Kim, SB Kim, SH Kim, YK Kimura, N Kirsch, L Klimenko, S Kondo, K Kong, DJ Konigsberg, J Korytov, A Kotwal, AV Kreps, M Kroll, J Krop, D Krumnack, N Kruse, M Krutelyov, V Kuhr, T Kulkarni, NP Kurata, M Kwang, S Laasanen, AT Lami, S Lammel, S Lancaster, M Lander, RL Lannon, K Lath, A Latino, G Lazzizzera, I LeCompte, T Lee, E Lee, HS Lee, JS Lee, SW Leone, S Lewis, JD Lin, CJ Linacre, J Lindgren, M Lipeles, E Lister, A Litvintsev, DO Liu, C Liu, T Lockyer, NS Loginov, A Lovas, L Lucchesi, D Lueck, J Lujan, P Lukens, P Lungu, G Lyons, L Lys, J Lysak, R MacQueen, D Madrak, R Maeshima, K Makhoul, K Maksimovic, P Malde, S Malik, S Manca, G Manousakis-Katsikakis, A Margaroli, F Marino, C Marino, CP Martin, A Martin, V Martinez, M Martinez-Ballarin, R Mastrandrea, P Mathis, M Mattson, ME Mazzanti, P McFarland, KS McIntyre, P McNulty, R Mehta, A Mehtala, P Menzione, A Mesropian, C Miao, T Mietlicki, D Miladinovic, N Miller, R Mills, C Milnik, M Mitra, A Mitselmakher, G Miyake, H Moed, S Moggi, N Mondragon, MN Moon, CS Moore, R Morello, MJ Morlock, J Fernandez, PM Mulmenstadt, J Mukherjee, A Muller, T Murat, P Mussini, M Nachtman, J Nagai, Y Naganoma, J Nakamura, K Nakano, I Napier, A Nett, J Neu, C Neubauer, MS Neubauer, S Nielsen, J Nodulman, L Norman, M Norniella, O Nurse, E Oakes, L Oh, SH Oh, YD Oksuzian, I Okusawa, T Orava, R Osterberg, K Griso, SP Pagliarone, C Palencia, E Papadimitriou, V Papaikonomou, A Paramanov, AA Parks, B Pashapour, S Patrick, J Pauletta, G Paulini, M Paus, C Peiffer, T Pellett, DE Penzo, A Phillips, TJ Piacentino, G Pianori, E Pinera, L Pitts, K Plager, C Pondrom, L Potamianos, K Poukhov, O Pounder, NL Prokoshin, F Pronko, A Ptohos, F Pueschel, E Punzi, G Pursley, J Rademacker, J Rahaman, A Ramakrishnan, V Ranjan, N Redondo, I Renton, P Renz, M Rescigno, M Richter, S Rimondi, F Ristori, L Robson, A Rodrigo, T Rodriguez, T Rogers, E Rolli, S Roser, R Rossi, M Rossin, R Roy, P Ruiz, A Russ, J Rusu, V Rutherford, B Saarikko, H Safonov, A Sakumoto, WK Santi, L Sartori, L Sato, K Saveliev, V Savoy-Navarro, A Schlabach, P Schmidt, A Schmidt, EE Schmidt, MA Schmidt, MP Schmitt, M Schwarz, T Scodellaro, L Scribano, A Scuri, F Sedov, A Seidel, S Seiya, Y Semenov, A Sexton-Kennedy, L Sforza, F Sfyrla, A Shalhout, SZ Shears, T Shepard, PF Shimojima, M Shiraishi, S Shochet, M Shon, Y Shreyber, I Simonenko, A Sinervo, P Sisakyan, A Slaughter, AJ Slaunwhite, J Sliwa, K Smith, JR Snider, FD Snihur, R Soha, A Somalwar, S Sorin, V Squillacioti, P Stanitzki, M Denis, RS Stelzer, B Stelzer-Chilton, O Stentz, D Strologas, J Strycker, GL Suh, JS Sukhanov, A Suslov, I Taffard, A Takashima, R Takeuchi, Y Tanaka, R Tang, J Tecchio, M Teng, PK Thom, J Thome, J Thompson, GA Thomson, E Tipton, P Ttito-Guzman, P Tkaczyk, S Toback, D Tokar, S Tollefson, K Tomura, T Tonelli, D Torre, S Torretta, D Totaro, P Trovato, M Tsai, SY Tu, Y Turini, N Ukegawa, F Uozumi, S van Remortel, N Varganov, A Vataga, E Vazquez, F Velev, G Vellidis, C Vidal, M Vila, I Vilar, R Vogel, M Volobouev, I Volpi, G Wagner, P Wagner, RG Wagner, RL Wagner, W Wagner-Kuhr, J Wakisaka, T Wallny, R Wang, SM Warburton, A Waters, D Weinberger, M Weinelt, J Wester, WC Whitehouse, B Whiteson, D Wicklund, AB Wicklund, E Wilbur, S Williams, G Williams, HH Wilson, P Winer, BL Wittich, P Wolbers, S Wolfe, C Wolfe, H Wright, T Wu, X Wurthwein, F Yagil, A Yamamoto, K Yamaoka, J Yang, UK Yang, YC Yao, WM Yeh, GP Yi, K Yoh, J Yorita, K Yoshida, T Yu, GB Yu, I Yu, SS Yun, JC Zanetti, A Zeng, Y Zhang, X Zheng, Y Zucchelli, S AF Aaltonen, T. Adelman, J. Alvarez Gonzalez, B. Amerio, S. Amidei, D. Anastassov, A. Annovi, A. Antos, J. Apollinari, G. Appel, J. Apresyan, A. Arisawa, T. Artikov, A. Asaadi, J. Ashmanskas, W. Attal, A. Aurisano, A. Azfar, F. Badgett, W. Barbaro-Galtieri, A. Barnes, V. E. Barnett, B. A. Barria, P. Bartos, P. Bauer, G. Beauchemin, P. -H. Bedeschi, F. Beecher, D. Behari, S. Bellettini, G. Bellinger, J. Benjamin, D. Beretvas, A. Bhatti, A. Binkley, M. Bisello, D. Bizjak, I. Blair, R. E. Blocker, C. Blumenfeld, B. Bocci, A. Bodek, A. Boisvert, V. Bortoletto, D. Boudreau, J. Boveia, A. Brau, B. Bridgeman, A. Brigliadori, L. Bromberg, C. Brubaker, E. Budagov, J. Budd, H. S. Budd, S. Burkett, K. Busetto, G. Bussey, P. Buzatu, A. Byrum, K. L. Cabrera, S. Calancha, C. Camarda, S. Campanelli, M. Campbell, M. Canelli, F. Canepa, A. Carls, B. Carlsmith, D. Carosi, R. Carrillo, S. Carron, S. Casal, B. Casarsa, M. Castro, A. Catastini, P. Cauz, D. Cavaliere, V. Cavalli-Sforza, M. Cerri, A. Cerrito, L. Chang, S. H. Chen, Y. C. Chertok, M. Chiarelli, G. Chlachidze, G. Chlebana, F. Cho, K. Chokheli, D. Chou, J. P. Chung, K. Chung, W. H. Chung, Y. S. Chwalek, T. Ciobanu, C. I. Ciocci, M. A. Clark, A. Clark, D. Compostella, G. Convery, M. E. Conway, J. Corbo, M. Cordelli, M. Cox, C. A. Cox, D. J. Crescioli, F. Almenar, C. Cuenca Cuevas, J. Culbertson, R. Cully, J. C. Dagenhart, D. d'Ascenzo, N. Datta, M. Davies, T. de Barbaro, P. De Cecco, S. Deisher, A. De Lorenzo, G. Dell'Orso, M. Deluca, C. Demortier, L. Deng, J. Deninno, M. d'Errico, M. Di Canto, A. Di Ruzza, B. Dittmann, J. R. D'Onofrio, M. Donati, S. Dong, P. Dorigo, T. Dube, S. Ebina, K. Elagin, A. Erbacher, R. Errede, D. Errede, S. Ershaidat, N. Eusebi, R. Fang, H. C. Farrington, S. Fedorko, W. T. Feild, R. G. Feindt, M. Fernandez, J. P. Ferrazza, C. Field, R. Flanagan, G. Forrest, R. Frank, M. J. Franklin, M. Freeman, J. C. Furic, I. Gallinaro, M. Galyardt, J. Garberson, F. Garcia, J. E. Garfinkel, A. F. Garosi, P. Gerberich, H. Gerdes, D. Gessler, A. Giagu, S. Giakoumopoulou, V. Giannetti, P. Gibson, K. Gimmell, J. L. Ginsburg, C. M. Giokaris, N. Giordani, M. Giromini, P. Giunta, M. Giurgiu, G. Glagolev, V. Glenzinski, D. Gold, M. Goldschmidt, N. Golossanov, A. Gomez, G. Gomez-Ceballos, G. Goncharov, M. Gonzalez, O. Gorelov, I. Goshaw, A. T. Goulianos, K. Gresele, A. Grinstein, S. Grosso-Pilcher, C. Group, R. C. Grundler, U. da Costa, J. Guimaraes Gunay-Unalan, Z. Haber, C. Hahn, S. R. Halkiadakis, E. Han, B. -Y. Han, J. Y. Happacher, F. Hara, K. Hare, D. Hare, M. Harr, R. F. Hartz, M. Hatakeyama, K. Hays, C. Heck, M. Heinrich, J. Herndon, M. Heuser, J. Hewamanage, S. Hidas, D. Hill, C. S. Hirschbuehl, D. Hocker, A. Hou, S. Houlden, M. Hsu, S. -C. Hughes, R. E. Huffman, B. T. Hurwitz, M. Husemann, U. Hussein, M. Huston, J. Incandela, J. Introzzi, G. Iori, M. Ivanov, A. James, E. Jang, D. Jayatilaka, B. Jeon, E. J. Jha, M. K. Jindariani, S. Johnson, W. Jones, M. Joo, K. K. Jun, S. Y. Jung, J. E. Junk, T. R. Kamon, T. Kar, D. Karchin, P. E. Kato, Y. Kephart, R. Ketchum, W. Keung, J. Khotilovich, V. Kilminster, B. Kim, D. H. Kim, H. S. Kim, H. W. Kim, J. E. Kim, M. J. Kim, S. B. Kim, S. H. Kim, Y. K. Kimura, N. Kirsch, L. Klimenko, S. Kondo, K. Kong, D. J. Konigsberg, J. Korytov, A. Kotwal, A. V. Kreps, M. Kroll, J. Krop, D. Krumnack, N. Kruse, M. Krutelyov, V. Kuhr, T. Kulkarni, N. P. Kurata, M. Kwang, S. Laasanen, A. T. Lami, S. Lammel, S. Lancaster, M. Lander, R. L. Lannon, K. Lath, A. Latino, G. Lazzizzera, I. LeCompte, T. Lee, E. Lee, H. S. Lee, J. S. Lee, S. W. Leone, S. Lewis, J. D. Lin, C. -J. Linacre, J. Lindgren, M. Lipeles, E. Lister, A. Litvintsev, D. O. Liu, C. Liu, T. Lockyer, N. S. Loginov, A. Lovas, L. Lucchesi, D. Lueck, J. Lujan, P. Lukens, P. Lungu, G. Lyons, L. Lys, J. Lysak, R. MacQueen, D. Madrak, R. Maeshima, K. Makhoul, K. Maksimovic, P. Malde, S. Malik, S. Manca, G. Manousakis-Katsikakis, A. Margaroli, F. Marino, C. Marino, C. P. Martin, A. Martin, V. Martinez, M. Martinez-Ballarin, R. Mastrandrea, P. Mathis, M. Mattson, M. E. Mazzanti, P. McFarland, K. S. McIntyre, P. McNulty, R. Mehta, A. Mehtala, P. Menzione, A. Mesropian, C. Miao, T. Mietlicki, D. Miladinovic, N. Miller, R. Mills, C. Milnik, M. Mitra, A. Mitselmakher, G. Miyake, H. Moed, S. Moggi, N. Mondragon, M. N. Moon, C. S. Moore, R. Morello, M. J. Morlock, J. Fernandez, P. Movilla Muelmenstaedt, J. Mukherjee, A. Muller, Th. Murat, P. Mussini, M. Nachtman, J. Nagai, Y. Naganoma, J. Nakamura, K. Nakano, I. Napier, A. Nett, J. Neu, C. Neubauer, M. S. Neubauer, S. Nielsen, J. Nodulman, L. Norman, M. Norniella, O. Nurse, E. Oakes, L. Oh, S. H. Oh, Y. D. Oksuzian, I. Okusawa, T. Orava, R. Osterberg, K. Griso, S. Pagan Pagliarone, C. Palencia, E. Papadimitriou, V. Papaikonomou, A. Paramanov, A. A. Parks, B. Pashapour, S. Patrick, J. Pauletta, G. Paulini, M. Paus, C. Peiffer, T. Pellett, D. E. Penzo, A. Phillips, T. J. Piacentino, G. Pianori, E. Pinera, L. Pitts, K. Plager, C. Pondrom, L. Potamianos, K. Poukhov, O. Pounder, N. L. Prokoshin, F. Pronko, A. Ptohos, F. Pueschel, E. Punzi, G. Pursley, J. Rademacker, J. Rahaman, A. Ramakrishnan, V. Ranjan, N. Redondo, I. Renton, P. Renz, M. Rescigno, M. Richter, S. Rimondi, F. Ristori, L. Robson, A. Rodrigo, T. Rodriguez, T. Rogers, E. Rolli, S. Roser, R. Rossi, M. Rossin, R. Roy, P. Ruiz, A. Russ, J. Rusu, V. Rutherford, B. Saarikko, H. Safonov, A. Sakumoto, W. K. Santi, L. Sartori, L. Sato, K. Saveliev, V. Savoy-Navarro, A. Schlabach, P. Schmidt, A. Schmidt, E. E. Schmidt, M. A. Schmidt, M. P. Schmitt, M. Schwarz, T. Scodellaro, L. Scribano, A. Scuri, F. Sedov, A. Seidel, S. Seiya, Y. Semenov, A. Sexton-Kennedy, L. Sforza, F. Sfyrla, A. Shalhout, S. Z. Shears, T. Shepard, P. F. Shimojima, M. Shiraishi, S. Shochet, M. Shon, Y. Shreyber, I. Simonenko, A. Sinervo, P. Sisakyan, A. Slaughter, A. J. Slaunwhite, J. Sliwa, K. Smith, J. R. Snider, F. D. Snihur, R. Soha, A. Somalwar, S. Sorin, V. Squillacioti, P. Stanitzki, M. Denis, R. St. Stelzer, B. Stelzer-Chilton, O. Stentz, D. Strologas, J. Strycker, G. L. Suh, J. S. Sukhanov, A. Suslov, I. Taffard, A. Takashima, R. Takeuchi, Y. Tanaka, R. Tang, J. Tecchio, M. Teng, P. K. Thom, J. Thome, J. Thompson, G. A. Thomson, E. Tipton, P. Ttito-Guzman, P. Tkaczyk, S. Toback, D. Tokar, S. Tollefson, K. Tomura, T. Tonelli, D. Torre, S. Torretta, D. Totaro, P. Trovato, M. Tsai, S. -Y. Tu, Y. Turini, N. Ukegawa, F. Uozumi, S. van Remortel, N. Varganov, A. Vataga, E. Vazquez, F. Velev, G. Vellidis, C. Vidal, M. Vila, I. Vilar, R. Vogel, M. Volobouev, I. Volpi, G. Wagner, P. Wagner, R. G. Wagner, R. L. Wagner, W. Wagner-Kuhr, J. Wakisaka, T. Wallny, R. Wang, S. M. Warburton, A. Waters, D. Weinberger, M. Weinelt, J. Wester, W. C., III Whitehouse, B. Whiteson, D. Wicklund, A. B. Wicklund, E. Wilbur, S. Williams, G. Williams, H. H. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, C. Wolfe, H. Wright, T. Wu, X. Wuerthwein, F. Yagil, A. Yamamoto, K. Yamaoka, J. Yang, U. K. Yang, Y. C. Yao, W. M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanetti, A. Zeng, Y. Zhang, X. Zheng, Y. Zucchelli, S. CA CDF Collaboration TI Measurement of the B- lifetime using a simulation free approach for trigger bias correction SO PHYSICAL REVIEW D LA English DT Article ID HADRONIC COLLISIONS; CROSS-SECTION; CP-VIOLATION; CDF; EVENT; QCD AB The collection of a large number of B-hadron decays to hadronic final states at the CDF II Detector is possible due to the presence of a trigger that selects events based on track impact parameters. However, the nature of the selection requirements of the trigger introduces a large bias in the observed proper-decay-time distribution. A lifetime measurement must correct for this bias, and the conventional approach has been to use a Monte Carlo simulation. The leading sources of systematic uncertainty in the conventional approach are due to differences between the data and the Monte Carlo simulation. In this paper, we present an analytic method for bias correction without using simulation, thereby removing any uncertainty due to the differences between data and simulation. This method is presented in the form of a measurement of the lifetime of the B- using the mode B- -> D-0 pi(-). The B- lifetime is measured as tau(-)(B) = 1.663 +/- 0.023 +/- 0.015 ps, where the first uncertainty is statistical and the second systematic. This new method results in a smaller systematic uncertainty in comparison to methods that use simulation to correct for the trigger bias. C1 [Aaltonen, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; van Remortel, N.] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland. [Aaltonen, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; van Remortel, N.] Helsinki Inst Phys, FIN-00014 Helsinki, Finland. [Chen, Y. C.; Hou, S.; Mitra, A.; Teng, P. K.; Tsai, S. -Y.; Wang, S. M.] Acad Sinica, Inst Phys, Taipei 11529, Taiwan. [Blair, R. E.; Byrum, K. L.; LeCompte, T.; Nodulman, L.; Paramanov, A. A.; Wagner, R. G.; Wicklund, A. B.] Argonne Natl Lab, Argonne, IL 60439 USA. [Giakoumopoulou, V.; Giokaris, N.; Manousakis-Katsikakis, A.; Vellidis, C.] Univ Athens, GR-15771 Athens, Greece. [Attal, A.; Camarda, S.; Cavalli-Sforza, M.; De Lorenzo, G.; Deluca, C.; D'Onofrio, M.; Grinstein, S.; Martinez, M.; Sorin, V.] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Bellaterra, Barcelona, Spain. [Dittmann, J. R.; Frank, M. J.; Hatakeyama, K.; Hewamanage, S.; Krumnack, N.] Baylor Univ, Waco, TX 76798 USA. [Brigliadori, L.; Castro, A.; Deninno, M.; Jha, M. K.; Mazzanti, P.; Moggi, N.; Mussini, M.; Rimondi, F.; Zucchelli, S.] Ist Nazl Fis Nucl Bologna, I-40127 Bologna, Italy. [Brigliadori, L.; Castro, A.; Mussini, M.; Rimondi, F.; Zucchelli, S.] Univ Bologna, I-40127 Bologna, Italy. [Blocker, C.; Clark, D.; Kirsch, L.; Miladinovic, N.] Brandeis Univ, Waltham, MA 02254 USA. [Chertok, M.; Conway, J.; Cox, C. A.; Cox, D. J.; Erbacher, R.; Forrest, R.; Ivanov, A.; Johnson, W.; Lander, R. L.; Pellett, D. E.; Schwarz, T.; Smith, J. R.] Univ Calif Davis, Davis, CA 95616 USA. [Plager, C.; Wallny, R.; Zheng, Y.] Univ Calif Los Angeles, Los Angeles, CA 90024 USA. [Norman, M.; Wuerthwein, F.; Yagil, A.] Univ Calif San Diego, La Jolla, CA 92093 USA. [Boveia, A.; Brau, B.; Garberson, F.; Hill, C. S.; Incandela, J.; Krutelyov, V.; Rossin, R.] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA. [Alvarez Gonzalez, B.; Casal, B.; Cuevas, J.; Gomez, G.; Rodrigo, T.; Ruiz, A.; Scodellaro, L.; Vila, I.; Vilar, R.] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain. [Galyardt, J.; Jang, D.; Jun, S. Y.; Paulini, M.; Pueschel, E.; Russ, J.; Thome, J.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Adelman, J.; Brubaker, E.; Canelli, F.; Fedorko, W. T.; Grosso-Pilcher, C.; Hurwitz, M.; Ketchum, W.; Kim, Y. K.; Krop, D.; Kwang, S.; Lee, H. S.; Schmidt, M. A.; Shiraishi, S.; Shochet, M.; Tang, J.; Wilbur, S.; Wolfe, C.; Yang, U. K.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. [Antos, J.; Bartos, P.; Lovas, L.; Lysak, R.; Tokar, S.] Inst Expt Phys, Kosice 04001, Slovakia. [Antos, J.; Bartos, P.; Lovas, L.; Lysak, R.; Tokar, S.] Comenius Univ, Bratislava 84248, Slovakia. [Artikov, A.; Budagov, J.; Chokheli, D.; Glagolev, V.; Poukhov, O.; Prokoshin, F.; Semenov, A.; Simonenko, A.; Sisakyan, A.; Suslov, I.] Joint Inst Nucl Res, RU-141980 Dubna, Russia. 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[Boudreau, J.; Gibson, K.; Hartz, M.; Liu, C.; Rahaman, A.; Shepard, P. F.] Univ Pittsburgh, Pittsburgh, PA 15260 USA. [Apresyan, A.; Barnes, V. E.; Bortoletto, D.; Flanagan, G.; Garfinkel, A. F.; Jones, M.; Laasanen, A. T.; Margaroli, F.; Potamianos, K.; Ranjan, N.; Sedov, A.] Purdue Univ, W Lafayette, IN 47907 USA. [Bodek, A.; Boisvert, V.; Budd, H. S.; Chung, Y. S.; de Barbaro, P.; Gimmell, J. L.; Han, B. -Y.; Han, J. Y.; McFarland, K. S.; Sakumoto, W. K.] Univ Rochester, Rochester, NY 14627 USA. [Bhatti, A.; Demortier, L.; Gallinaro, M.; Goulianos, K.; Lungu, G.; Mesropian, C.] Rockefeller Univ, New York, NY 10021 USA. [De Cecco, S.; Giagu, S.; Iori, M.; Mastrandrea, P.; Rescigno, M.] Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy. [Giagu, S.; Iori, M.] Univ Roma La Sapienza, I-00185 Rome, Italy. [Dube, S.; Halkiadakis, E.; Hare, D.; Hidas, D.; Lath, A.; Somalwar, S.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Asaadi, J.; Aurisano, A.; Elagin, A.; Eusebi, R.; Kamon, T.; Khotilovich, V.; Lee, E.; Lee, S. W.; McIntyre, P.; Safonov, A.; Toback, D.; Weinberger, M.] Texas A&M Univ, College Stn, TX 77843 USA. [Cauz, D.; Giordani, M.; Pagliarone, C.; Pauletta, G.; Penzo, A.; Rossi, M.; Santi, L.; Totaro, P.; Zanetti, A.] Ist Nazl Fis Nucl Trieste Udine, I-34100 Trieste, Italy. [Cauz, D.; Giordani, M.; Pagliarone, C.; Pauletta, G.; Penzo, A.; Rossi, M.; Santi, L.; Totaro, P.; Zanetti, A.] Ist Nazl Fis Nucl Trieste Udine, I-33100 Udine, Italy. [Giordani, M.; Pauletta, G.; Santi, L.; Totaro, P.] Univ Trieste Udine, I-33100 Udine, Italy. [Hara, K.; Kim, S. H.; Kurata, M.; Miyake, H.; Nagai, Y.; Naganoma, J.; Nakamura, K.; Sato, K.; Shimojima, M.; Takeuchi, Y.; Tomura, T.; Ukegawa, F.] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan. [Hare, M.; Napier, A.; Rolli, S.; Sliwa, K.; Whitehouse, B.] Tufts Univ, Medford, MA 02155 USA. [Arisawa, T.; Ebina, K.; Kimura, N.; Kondo, K.; Yorita, K.] Waseda Univ, Tokyo 169, Japan. [Haber, C.; Harr, R. F.; Karchin, P. E.; Kulkarni, N. P.; Mattson, M. E.; Shalhout, S. Z.] Wayne State Univ, Detroit, MI 48201 USA. [Carlsmith, D.; Chung, W. H.; Herndon, M.; Nett, J.; Pondrom, L.; Pursley, J.; Ramakrishnan, V.; Shon, Y.] Univ Wisconsin, Madison, WI 53706 USA. [Almenar, C. Cuenca; Feild, R. G.; Husemann, U.; Loginov, A.; Martin, A.; Schmidt, M. P.; Stanitzki, M.; Tipton, P.] Yale Univ, New Haven, CT 06520 USA. RP Aaltonen, T (reprint author), Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland. RI Lysak, Roman/H-2995-2014; Moon, Chang-Seong/J-3619-2014; Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; Las, Hoh239/F-9806-2012; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Punzi, Giovanni/J-4947-2012; Zeng, Yu/C-1438-2013; Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Scodellaro, Luca/K-9091-2014; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera, Ignazio/E-9678-2015; Cabrera Urban, Susana/H-1376-2015; Garcia, Jose /H-6339-2015; Cavalli-Sforza, Matteo/H-7102-2015; ciocci, maria agnese /I-2153-2015; Chiarelli, Giorgio/E-8953-2012; Muelmenstaedt, Johannes/K-2432-2015; Introzzi, Gianluca/K-2497-2015; Piacentino, Giovanni/K-3269-2015; Martinez Ballarin, Roberto/K-9209-2015; Gorelov, Igor/J-9010-2015; Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; OI Robson, Aidan/0000-0002-1659-8284; Moon, Chang-Seong/0000-0001-8229-7829; Ruiz, Alberto/0000-0002-3639-0368; Punzi, Giovanni/0000-0002-8346-9052; Annovi, Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; Scodellaro, Luca/0000-0002-4974-8330; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese /0000-0003-0002-5462; Chiarelli, Giorgio/0000-0001-9851-4816; Muelmenstaedt, Johannes/0000-0003-1105-6678; Introzzi, Gianluca/0000-0002-1314-2580; Piacentino, Giovanni/0000-0001-9884-2924; Martinez Ballarin, Roberto/0000-0003-0588-6720; Gorelov, Igor/0000-0001-5570-0133; Prokoshin, Fedor/0000-0001-6389-5399; Canelli, Florencia/0000-0001-6361-2117; Group, Robert/0000-0002-4097-5254; Simonenko, Alexander/0000-0001-6580-3638; Lancaster, Mark/0000-0002-8872-7292; Lami, Stefano/0000-0001-9492-0147; Giordani, Mario/0000-0002-0792-6039; Casarsa, Massimo/0000-0002-1353-8964; Margaroli, Fabrizio/0000-0002-3869-0153; Latino, Giuseppe/0000-0002-4098-3502; iori, maurizio/0000-0002-6349-0380; Vidal Marono, Miguel/0000-0002-2590-5987; Nielsen, Jason/0000-0002-9175-4419; Jun, Soon Yung/0000-0003-3370-6109; Toback, David/0000-0003-3457-4144; Osterberg, Kenneth/0000-0003-4807-0414; Hays, Chris/0000-0003-2371-9723; Farrington, Sinead/0000-0001-5350-9271; Gallinaro, Michele/0000-0003-1261-2277; Turini, Nicola/0000-0002-9395-5230; Torre, Stefano/0000-0002-7565-0118 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science, and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A.P. Sloan Foundation; Bundesministerium fur Bildung und Forschung, Germany; National Research Foundation of Korea; Science and Technology Facilities Council; Royal Society, United Kingdom; Institut National de Physique Nucleaire et Physique des Particules/CNRS; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion, Spain; Slovak RD Agency; Academy of Finland FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science, and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur Bildung und Forschung, Germany; the World Class University Program and the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, United Kingdom; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and the Academy of Finland. NR 31 TC 9 Z9 9 U1 2 U2 19 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 16 PY 2011 VL 83 IS 3 AR 032008 DI 10.1103/PhysRevD.83.032008 PG 30 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 721YL UT WOS:000287393900001 ER PT J AU Schwienhorst, R Yuan, CP Mueller, C Cao, QH AF Schwienhorst, Reinhard Yuan, C. -P. Mueller, Charles Cao, Qing-Hong TI Single top quark production and decay in the t channel at next-to-leading order at the LHC SO PHYSICAL REVIEW D LA English DT Article ID JET CROSS-SECTIONS; HADRON COLLIDERS; PHYSICS; SEARCH; QCD AB We present a study of single top and single antitop quark production in the t-channel mode at the LHC pp collider at 7 TeV, 10 TeV and 14 TeV, including next-to-leading order QCD corrections to the production and decay of the top quark. We discuss the effects of different O(alpha(s)) contributions on the inclusive cross section and important kinematic distributions, after imposing the relevant cuts to select t-channel single top quark events. C1 [Schwienhorst, Reinhard; Yuan, C. -P.; Mueller, Charles] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. [Cao, Qing-Hong] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA. [Cao, Qing-Hong] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA. RP Schwienhorst, R (reprint author), Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. EM schwier@pa.msu.edu; yuan@pa.msu.edu; muell149@msu.edu; caoq@hep.anl.gov FU U.S. National Science Foundation [PHY-0757741, PHY-0555545, PHY-0855561]; Argonne National Laboratory; University of Chicago Joint Theory Institute (JTI) [03921-07-137]; U.S. Department of Energy [DE-AC02-06CH11357, DE-FG02- 90ER40560] FX S. H. and R. S. are supported in part by the U.S. National Science Foundation under Grant No. PHY-0757741. Q. H. C. is supported in part by the Argonne National Laboratory and University of Chicago Joint Theory Institute (JTI) Grant No. 03921-07-137, and by the U.S. Department of Energy under Grants No. DE-AC02-06CH11357 and No. DE-FG02- 90ER40560. C. P. Y. acknowledges the support of the U.S. National Science Foundation under Grants No. PHY-0555545 and PHY-0855561. Q. H. C. thanks Shanghai Jiaotong University for hospitality where part of this work was done. C. P. Y. would also like to thank the hospitality of National Center for Theoretical Sciences in Taiwan and Center for High Energy Physics, Peking University, in China, where part of this work was done. NR 55 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 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB 16 PY 2011 VL 83 IS 3 AR 034019 DI 10.1103/PhysRevD.83.034019 PG 23 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 721YL UT WOS:000287393900003 ER PT J AU Chang, L Liu, YX Roberts, CD AF Chang, Lei Liu, Yu-Xin Roberts, Craig D. TI Dressed-Quark Anomalous Magnetic Moments SO PHYSICAL REVIEW LETTERS LA English DT Article ID DYSON-SCHWINGER EQUATIONS; INSTANTONS; MESONS; MODEL AB Perturbation theory predicts that a massless fermion cannot possess a measurable magnetic moment. We explain, however, that the nonperturbative phenomenon of dynamical chiral symmetry breaking generates a momentum-dependent anomalous chromomagnetic moment for dressed light quarks, which is large at infrared momenta, and demonstrate that consequently these same quarks also possess an anomalous electromagnetic moment with similar magnitude and opposite sign. C1 [Chang, Lei] Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China. [Liu, Yu-Xin; Roberts, Craig D.] Peking Univ, Dept Phys, Beijing 100871, Peoples R China. [Liu, Yu-Xin; Roberts, Craig D.] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China. [Roberts, Craig D.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. RP Chang, L (reprint author), Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China. OI Roberts, Craig/0000-0002-2937-1361 FU National Natural Science Foundation of China [10425521, 10705002, 10935001]; Major State Basic Research Development Program [G2007CB815000]; United States Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357] FX We are grateful for comments from A. Kizilersu and P. C. Tandy. Work supported by the National Natural Science Foundation of China, Contracts No. 10425521, No. 10705002, and No. 10935001; the Major State Basic Research Development Program, Contract No. G2007CB815000; and the United States Department of Energy, Office of Nuclear Physics, Contract No. DE-AC02-06CH11357. NR 22 TC 80 Z9 80 U1 2 U2 7 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 FEB 16 PY 2011 VL 106 IS 7 AR 072001 DI 10.1103/PhysRevLett.106.072001 PG 4 WC Physics, Multidisciplinary SC Physics GA 721XY UT WOS:000287392300003 PM 21405508 ER PT J AU Duguet, T Unal, B Ledieu, J Dubois, JM Fournee, V Thiel, PA AF Duguet, T. Uenal, B. Ledieu, J. Dubois, J. -M. Fournee, V. Thiel, P. A. TI Nanodomains due to Phason Defects at a Quasicrystal Surface SO PHYSICAL REVIEW LETTERS LA English DT Article AB Among the three coexisting types of terraces found on the twofold surface of the d-Al-Cu-Co quasicrystal, nanodomains are essentially observed on the transition-metal rich ones, with a coherent interface boundary. Both clean surface and Ag growth analyses, demonstrate that nanodomain surfaces are structurally identical to one of the two other terraces, which contains 85 at.% Al. We provide evidence that the nanodomains are a manifestation of phason defects that extend downward toward the bulk, and state that nanodomains develop because the energetic cost of creating the phason is outweighed by the change in surface energy. Consequently, the formation of nanodomains involves more than just the surface layer, but is driven by surface energetics. C1 [Duguet, T.; Uenal, B.; Thiel, P. A.] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Duguet, T.; Uenal, B.; Thiel, P. A.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Duguet, T.; Uenal, B.; Thiel, P. A.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. [Duguet, T.; Ledieu, J.; Dubois, J. -M.; Fournee, V.] Nancy Univ, Inst Jean Lamour, CNRS, Ecole Mines Nancy,UPV Metz,UMR7198, F-54042 Nancy, France. RP Duguet, T (reprint author), Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. RI DUGUET, Thomas/B-6738-2011; Ledieu, Julian/F-1430-2010 FU Office of Basic Energy Sciences, Division of Materials Sciences and Engineering of the U.S. Department of Energy (USDOE) through the Ames laboratory [DE-AC02-07CH11358]; European Network of Excellence on Complex Metallic Alloys (CMA) [NMP3-CT-2005-500145]; Agence Nationale de la Recherche [ANR-07-Blan-0270] FX This work was partially supported by the Office of Basic Energy Sciences, Division of Materials Sciences and Engineering of the U.S. Department of Energy (USDOE) under contract DE-AC02-07CH11358, through the Ames laboratory. It was also partially supported by the European Network of Excellence on Complex Metallic Alloys (CMA) contract NMP3-CT-2005-500145 and by the Agence Nationale de la Recherche, Reference No ANR-07-Blan-0270. NR 21 TC 5 Z9 5 U1 0 U2 10 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 FEB 16 PY 2011 VL 106 IS 7 AR 076101 DI 10.1103/PhysRevLett.106.076101 PG 4 WC Physics, Multidisciplinary SC Physics GA 721XY UT WOS:000287392300007 PM 21405525 ER PT J AU Haertling, C Usov, I Wang, YQ AF Haertling, Carol Usov, Igor Wang, Yongqiang TI Outgassing from alpha particle irradiation of lithium hydride and lithium hydroxide SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article DE Lithium hydride; Lithium hydroxide; Alpha radiation; Hydrogen gas ID NUCLEAR-MAGNETIC-RESONANCE; SINGLE-CRYSTALS; STABILITY; HYDROGEN AB We have experimentally studied the effects of alpha-particle radiation on isotopically enriched lithium hydride ((6)LiH) and its corrosion product lithium hydroxide ((6)LiOH) to determine, in particular, the type and amount of gases evolved during irradiation. SRIM Monte Carlo simulations suggest that irradiating these materials with 2.2-MeV alpha-particles will ionize atoms and form hydrogen vacancies in the target material, and that these alpha-particles will penetrate 13.5 and 9 mu m into LiH and LiOH, respectively. Using an accelerator to irradiate LiH and LiOH with 2.2-MeV alpha-particles released only H(2) and CO(2); no other product gases were observed. At 25 degrees C, doses that simulated 66.5 years of actinide exposure (with accelerated fluxes) produced 2.3 x 10(5) mol/(cm(3) J) H(2) in LiH and 2.3 x 10(6) mol/(cm(3) J) H(2) in LiOH, in the form of a similar to 9-mu m-thick surface layer on LiH. More H(2) evolved from LiOH than from LiH. We argue that the production of H(2) gas was the result of radiolysis, rather than radiation-induced chemical reaction. Published by Elsevier B.V. C1 [Haertling, Carol; Usov, Igor; Wang, Yongqiang] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Haertling, C (reprint author), Los Alamos Natl Lab, M-S G770, Los Alamos, NM 87545 USA. EM chaert@lanl.gov NR 28 TC 1 Z9 1 U1 1 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD FEB 15 PY 2011 VL 269 IS 4 BP 444 EP 451 DI 10.1016/j.nimb.2010.12.023 PG 8 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 735HV UT WOS:000288405700008 ER PT J AU Papenbrock, T AF Papenbrock, T. TI Effective theory for deformed nuclei SO NUCLEAR PHYSICS A LA English DT Article DE Effective theory; Collective excitations; Deformed nuclei ID EFFECTIVE-FIELD THEORY; SPONTANEOUS SYMMETRY-BREAKING; PHENOMENOLOGICAL LAGRANGIANS; COLLECTIVE MODEL; GROUND-STATE; SYSTEMS; ROTATION; MOTION; ORIGIN AB Techniques from effective field theory are applied to nuclear rotation. This approach exploits the spontaneous breaking of rotational symmetry and the separation of scale between low-energy Nambu Goldstone rotational modes and high-energy vibrational and nucleonic degrees of freedom. A power counting is established and the Hamiltonian is constructed at next-to-leading order. (C) 2010 Elsevier B.V. All rights reserved. C1 [Papenbrock, T.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Papenbrock, T.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Papenbrock, T.] GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany. [Papenbrock, T.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. RP Papenbrock, T (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. EM tpapenbr@utk.edu OI Papenbrock, Thomas/0000-0001-8733-2849 FU U.S. Department of Energy [DE-FG02-07ER41529, DE-FG02-96ER40963]; Alexander von Humboldt-Stiftung FX The author gratefully acknowledges discussions with R.J. Furnstahl, W. Nazarewicz, A. Schwenk, and H.A. Weidenmuller. He thanks the Institut fur Kernphysik, Technische Universitat Darmstadt, and the GSI Helmholtzzentrum fur Schwerionenforschung for their hospitality. This work was supported by the U.S. Department of Energy under Grants Nos. DE-FG02-07ER41529 and DE-FG02-96ER40963, and by the Alexander von Humboldt-Stiftung. NR 55 TC 12 Z9 12 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 J9 NUCL PHYS A JI Nucl. Phys. A PD FEB 15 PY 2011 VL 852 IS 1 BP 36 EP 60 DI 10.1016/j.nuclphysa.2010.12.013 PG 25 WC Physics, Nuclear SC Physics GA 735KD UT WOS:000288412000003 ER PT J AU Hidaka, Y Kojo, T McLerran, L Pisarski, RD AF Hidaka, Yoshimasa Kojo, Toru McLerran, Larry Pisarski, Robert D. TI The dichotomous nucleon: Some radical conjectures for the large N-c limit SO NUCLEAR PHYSICS A LA English DT Article DE Dense quark matter; Chiral symmetry breaking; Large N-c expansion ID SKYRME MODEL; CHIRAL SOLITON; COUPLING-CONSTANT; STATIC PROPERTIES; 1/N-C EXPANSION; FORM-FACTORS; BETA-DECAY; SUM-RULES; BARYON; BAG AB We discuss some problems with the large N-c approximation for nucleons which arise if the axial coupling of the nucleon to pions is large, g(A) similar to N-c. While N-c in non-relativistic quark and Skyrme models, it has been suggested that Skyrmions may collapse to a small size, r similar to 1/f pi similar to Lambda(-1)(QCD)/root N-c. (This is also the typical scale over which the string vertex moves in a string vertex model of the baryon.) We concentrate on the case of two flavors, where we suggest that to construct a nucleon with a small axial coupling, that most quarks are bound into colored diquark pairs, which have zero spin and isospin. For odd N-c, this leaves one unpaired quark, which carries the spin and isospin of the nucleon. If the unpaired quark is in a spatial wavefunction orthogonal to the wavefunctions of the scalar diquarks, then up to logarithms of N-c, the unpaired quark only costs an energy similar to Lambda(QCD). This naturally gives g(A) similar to 1 and has other attractive features. In nature, the wavefunctions of the paired and unpaired quarks might only be approximately orthogonal; then g(A) depends weakly upon N-c. This dichotomy in wave functions could arise if the unpaired quark orbits at a size which is parametrically large in comparison to that of the diquarks. We discuss possible tests of these ideas from numerical simulations on the lattice, for two flavors and three and five colors; the extension of our ideas to more than three or more flavors is not obvious, though. (C) 2011 Elsevier B.V. All rights reserved. C1 [Kojo, Toru; McLerran, Larry] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Hidaka, Yoshimasa] Kyoto Univ, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan. [McLerran, Larry; Pisarski, Robert D.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Kojo, T (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. EM torujj@quark.phy.bnl.gov FU RIKEN; US Department of Energy [DE-AC02-98CH0886]; Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan FX L. McLerran thanks Tom Cohen and Dmitri Diakonov for heated discussions on this subject, and Ismail Zahed for critical observations. He gives enormous thanks to Jean-Paul Blaizot and Maciej Nowak, with whom he had many discussions in the early stages of this project; he also thanks hospitality of the Theoretical Physics Division of CEA-Saclay, where this work was initiated. We also thank Y. Aoki, K. Hashimoto, D.K. Hong, D. Kaplan, M. Karliner, K. Kubodera, S. Ohta, M. Rho, S. Sasaki, and M. Savage for discussions and comments. T. Kojo is supported by Special Posdoctoral Research Program of RIKEN; he also thanks the Asia Pacific Center for Theoretical Physics for their hospitality during a visit in June, 2010. This manuscript has been authorized under Contract No. DE-AC02-98CH0886 with the US Department of Energy. This research of Y. Hidaka is supported by the Grant-in-Aid for the Global COE Program "The Next Generation of Physics, Spun from Universality and Emergence" from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan. NR 83 TC 9 Z9 9 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9474 EI 1873-1554 J9 NUCL PHYS A JI Nucl. Phys. A PD FEB 15 PY 2011 VL 852 IS 1 BP 155 EP 174 DI 10.1016/j.nuclphysa.2011.01.008 PG 20 WC Physics, Nuclear SC Physics GA 735KD UT WOS:000288412000010 ER PT J AU Cantrell, KJ Deutsch, WJ Lindberg, MJ AF Cantrell, Kirk J. Deutsch, William J. Lindberg, Mike J. TI Thermodynamic Model for Uranium Release from Hanford Site Tank Residual Waste SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID SOLUBILITY MEASUREMENTS; URANYL; COPRECIPITATION; CALCITE; RADIONUCLIDES; LUMINESCENCE; CARBONATE; CEMENT; PHASES; U(VI) AB A thermodynamic model of U solid-phase solubility and paragenesis was developed for Hanford Site tank residual waste that will remain in place after tank closure. The model was developed using a combination of waste composition data, waste leach test data, and thermodynamic modeling of the leach test data. The testing and analyses were conducted using actual Hanford Site tank residual waste. Positive identification of U phases by X-ray diffraction was generally not possible either because solids in the waste were amorphous or their concentrations were not detectable by XRD for both as-received and leached residual waste. Three leachant solutions were used in the studies: deionized water, CaCO3 saturated solution, and Ca(OH)(2) saturated solution. Analysis of calculated saturation indices indicate that NaUO2PO4 center dot xH(2)O and Na2U2O7(am) are present in the residual wastes initially. Leaching of the residual wastes with deionized water or CaCO3 saturated solution results in preferential dissolution Na2U2O7(am) and formation of schoepite. Leaching of the residual wastes with Ca(OH)(2) saturated solution appears to result in transformation of both NaUO2PO4 center dot xH(2)O and Na2U2O7(am) to CaUO4. Upon the basis of these results, the paragenetic sequence of secondary phases expected to occur as leaching of residual waste progresses for two tank closure scenarios was identified. C1 [Cantrell, Kirk J.; Lindberg, Mike J.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Deutsch, William J.] Geochem Serv LLC, Port Townsend, WA 98368 USA. RP Cantrell, KJ (reprint author), Pacific NW Natl Lab, POB 999,Mail Stop K6-81, Richland, WA 99352 USA. EM kirk.cantrell@pnl.gov FU Washington River Protection Solutions LLC (Richland, Washington); Battelle Memorial Institute [DE-AC05-76RL01830]; DOE's Office of Basic Energy Sciences; University of Washington; Simon Fraser University; Natural Sciences and Engineering Research Council of Canada; DOE's Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX The authors acknowledge M. Connelly at Washington River Protection Solutions LLC (Richland, Washington) for providing project funding and technical guidance. Pacific Northwest National Laboratory is operated for DOE by Battelle Memorial Institute under contract DE-AC05-76RL01830. Synchrotron-based analyses were completed at the X-ray Science Division & Pacific Northwest Consortium beamline 20-ID at the Advanced Photon Source, The Pacific Northwest Consortium-Collaborative Access Team project is supported by funding from DOE's Office of Basic Energy Sciences, the University of Washington, Simon Fraser University, and the Natural Sciences and Engineering Research Council of Canada. Use of the Advanced Photon Source is supported by DOE's Office of Science, Office of Basic Energy Sciences, under contract DE-AC02-06CH11357. NR 26 TC 3 Z9 3 U1 1 U2 20 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X EI 1520-5851 J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD FEB 15 PY 2011 VL 45 IS 4 BP 1473 EP 1480 DI 10.1021/es1038968 PG 8 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 718LI UT WOS:000287122400046 PM 21268633 ER PT J AU Capiro, NL Granbery, EK Lebron, CA Major, DW McMaster, ML Pound, MJ Loffler, FE Pennell, KD AF Capiro, Natalie L. Granbery, Emmie K. Lebron, Carmen A. Major, David W. McMaster, Michaye L. Pound, Michael J. Loeffler, Frank E. Pennell, Kurt D. TI Liquid-Liquid Mass Transfer of Partitioning Electron Donors in Chlorinated Solvent Source Zones SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID NONAQUEOUS-PHASE LIQUID; SURFACTANT-ENHANCED SOLUBILIZATION; MICROBIAL REDUCTIVE DECHLORINATION; 2-SITE 2-REGION MODELS; NAPL SOURCE ZONE; TETRACHLOROETHENE DNAPL; PERFORMANCE ASSESSMENT; RESIDUAL DODECANE; SOIL COLUMNS; TRACER TEST AB A combination of batch and column experiments evaluated the mass transfer of two candidate partitioning electron donors (PEDs), n-hexanol (nHex) and n-butyl acetate (nBA), for enhanced bioremediation of trichloroethene (TCE)-dense nonaqueous phase liquid (DNAPL). Completely mixed batch reactor experiments yielded equilibrium TCE-DNAPL and water partition coefficients (K(NW)) for nHex and nBA of 21.7 +/- 0.27 and 330.43 +/- 6.7, respectively, over a range of initial PED concentrations up to the aqueous solubility limit of ca. 5000 mg/L. First order liquid liquid mass transfer rates determined in batch reactors with nBA or nHex concentrations near the aqueous solubility were 0.22 min(-1) and 0.11 min(-1), respectively. Liquid-liquid mass transfer under dynamic flow conditions was assessed in one-dimensional (1-D) abiotic columns packed with Federal Fine Ottawa sand containing a uniform distribution of residual TCE-DNAPL. Following pulse injection of PED solutions at pore-water velocities (v(p)) ranging from 1.2 to 6.0 m/day, effluent concentration measurements demonstrated that both nHex and nBA partitioned strongly into residual TCE-DNAPL with maximum effluent levels not exceeding 35% and 7%, respectively, of the applied concentrations of 4000 to 5000 mg/L. PEDs persisted at effluent concentrations above 5 mg/L for up to 16 and 80 pore volumes for nHex and nBA, respectively. Mathematical simulations yielded K(NW) values ranging from 44.7 to 48.2 and 247 to 291 and liquid-liquid mass transfer rates of 0.01 to 0.03 min(-1) and 0.001 to 0.006 min(-1) for nHex and nBA, respectively. The observed TCE-DNAPL and water mass transfer behavior suggests that a single PED injection can persist in a treated source zone for prolonged time periods, thereby reducing the need for, or frequency of, repeated electron donor injections to support bacteria that derive reducing equivalents for TCE reductive dechlorination from PED fermentation. C1 [Capiro, Natalie L.; Pennell, Kurt D.] Tufts Univ, Dept Civil & Environm Engn, Medford, MA 02155 USA. [Granbery, Emmie K.; Loeffler, Frank E.] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA. [Lebron, Carmen A.] USN, Facil Engn Command, Engn Serv Ctr, Port Hueneme, CA 93043 USA. [Major, David W.; McMaster, Michaye L.] Geosyntec Consultants, Guelph, ON N1G 5G3, Canada. [Pound, Michael J.] USN, Facil Engn Command SW, San Diego, CA 92132 USA. [Loeffler, Frank E.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. [Loeffler, Frank E.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. [Loeffler, Frank E.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA. RP Capiro, NL (reprint author), Tufts Univ, Dept Civil & Environm Engn, 200 Coll Ave, Medford, MA 02155 USA. EM natalie.capiro@tufts.edu; kurt.pennell@tufts.edu RI Capiro, Natalie/G-5955-2010; Pennell, Kurt/F-6862-2010; Loeffler, Frank/M-8216-2013 OI Pennell, Kurt/0000-0002-5788-6397; FU Sealaska Environmental Services, LLC; Naval Facilities Engineering Command Southwest [CTO-0015]; Environmental Security Technology Certification Program [ER-0716] FX The authors thank Gretell Otano and Namory Keita for their assistance with the experimental sampling and Jed Costanza for his technical assistance in developing analytical procedures. Funding for this research was provided by a subcontract through Sealaska Environmental Services, LLC, Naval Facilities Engineering Command Southwest CTO-0015, and efforts were performed in support of the Environmental Security Technology Certification Program Project ER-0716: "Improving Effectiveness of Bioremediation at DNAPL Source Zone Sites by Applying Partitioning Electron Donors (PEDs)". NR 42 TC 5 Z9 5 U1 1 U2 15 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 FEB 15 PY 2011 VL 45 IS 4 BP 1547 EP 1554 DI 10.1021/es102249x PG 8 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 718LI UT WOS:000287122400056 PM 21207963 ER PT J AU Deng, W Lee, S Libera, JA Elam, JW Vajda, S Marshall, CL AF Deng, Weiling Lee, Sungsik Libera, Joseph A. Elam, Jeffrey W. Vajda, Stefan Marshall, Christopher L. TI Cleavage of the C-O-C bond on size-selected subnanometer cobalt catalysts and on ALD-cobalt coated nanoporous membranes SO APPLIED CATALYSIS A-GENERAL LA English DT Article DE Oxidative decomposition; Cellulose; C-O-C bond cleavage; Size-selected clusters; Cobalt; Anodized aluminum oxide; Atomic layer deposition ID GOLD CLUSTERS; CELLULOSE; OXIDATION; SILVER; GAS; EPOXIDATION; HYDROLYSIS; REACTIVITY; CHEMISTRY; WATER AB The cleavage of the C-O-C bond was studied under oxidizing conditions on nanostructured membrane supported cobalt-based catalysts using a cellulose model surrogate, 1-methoxy-2-methyl-2-propanol. The cobalt catalysts were found to break the C-O-C bond, producing alcohols and/or ketones by further oxidation. The size-selected sub-nanometer size cobalt clusters exhibited a per metal activity of up to 5 orders of magnitude higher than the with atomic layer deposition uniformly coated membranes. The large difference in activity is attributed to the high fraction of the surface atoms of the subnanometer clusters. The positioning of the clusters at the entrance vs. exit of the catalytic membrane allows for a control of the contact time and consequently of the selectivity of the catalyst. Published by Elsevier B.V. C1 [Vajda, Stefan] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Vajda, Stefan] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Vajda, Stefan] Yale Univ, Sch Engn & Appl Sci, Dept Chem Engn, New Haven, CT 06511 USA. [Deng, Weiling; Marshall, Christopher L.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Lee, Sungsik] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Libera, Joseph A.; Elam, Jeffrey W.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA. RP Vajda, S (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave,MSD-200, Argonne, IL 60439 USA. EM vajda@anl.gov; marshall@anl.gov RI Marshall, Christopher/D-1493-2015 OI Marshall, Christopher/0000-0002-1285-7648 FU US Department of Energy [FWP 57703, DE-AC-02-06CH11357]; UChicago Argonne, LLC, Operator of Argonne National Laboratory FX This work was supported by the US Department of Energy, BES-Chemical Sciences under contract FWP 57703, BES Materials Sciences and BES-Scientific User Facilities under contract DE-AC-02-06CH11357 with UChicago Argonne, LLC, Operator of Argonne National Laboratory. NR 33 TC 18 Z9 18 U1 1 U2 36 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 FEB 15 PY 2011 VL 393 IS 1-2 BP 29 EP 35 DI 10.1016/j.apcata.2010.11.022 PG 7 WC Chemistry, Physical; Environmental Sciences SC Chemistry; Environmental Sciences & Ecology GA 725BE UT WOS:000287619400005 ER PT J AU Aaron, DS Borole, AP Hussey, DS Jacobson, DL Yiacoumi, S Tsouris, C AF Aaron, D. S. Borole, A. P. Hussey, D. S. Jacobson, D. L. Yiacoumi, S. Tsouris, C. TI Quantifying the water content in the cathode of enzyme fuel cells via neutron imaging SO JOURNAL OF POWER SOURCES LA English DT Article DE Enzyme fuel cell; Neutron imaging; Laccase; Three-dimensional cathode; Water management ID LIQUID WATER; RADIOGRAPHY; PEMFC; AIR AB Neutron imaging was used to study cathode water content over time in a three dimensional-cathode enzyme fuel cell (EFC) A porous carbon felt cathode allowed air to flow through the electrode A solution with laccase and a mediator formed an aqueous layer on the electrode surface Water loss was observed in situ via neutron imaging for varying experimental conditions including flow rates of hydrogen and air cathode inlet humidity volume of enzyme solution and its composition Cathode water loss occurred for all experimental conditions but the loss rate was noticeably reduced when a high-salt-concentration enzyme solution was used in the cathode in conjunction with increased humidity in the air feed stream Results from neutron imaging and power density analysis wire used in analyzing the causes that could contribute to EFC water loss An increase in temperature due to the exothermic cathode reaction is considered a plausible cause of cathode water loss via evaporation This is the first reported application of neutron imaging as a technique to study EFC water management The results suggest that neutron imaging can be employed to provide a better understanding of EFC phenomena and thereby contribute to design and operational improvements of EFCs (C) 2010 Elsevier B V All rights reserved C1 [Aaron, D. S.; Yiacoumi, S.; Tsouris, C.] Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA. [Borole, A. P.; Tsouris, C.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Hussey, D. S.; Jacobson, D. L.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA. RP Tsouris, C (reprint author), Georgia Inst Technol, Sch Civil & Environm Engn, Atlanta, GA 30332 USA. RI Borole, AP/F-3933-2011; Sanders, Susan/G-1957-2011; Tsouris, Costas/C-2544-2016; OI Tsouris, Costas/0000-0002-0522-1027; Borole, Abhijeet/0000-0001-8423-811X FU American Chemical Society - Green Chemistry Initiative at Georgia Institute of Technology; U S Department of Energy [DE-AC05-00OR22725]; U S Department of Commerce; NIST Ionizing Radiation Division; NIST Center for Neutron Research; Laboratory Directed Research and Development Program of ORNL; Director s office of NIST; Department of Energy [DE-AI01-01EE50660] FX This work was supported by the American Chemical Society Petroleum Research Fund - Green Chemistry Initiative at Georgia Institute of Technology EFC work at Oak Ridge National Laboratory was supported by the Laboratory Directed Research and Development Program of ORNL Oak Ridge National Laboratory is managed by UT-Battelle LLC for the U S Department of Energy under contract DE-AC05-00OR22725 Neutron imaging was performed at the National Institute of Standards and Technology Center for Neutron Research The authors acknowledge Mr Eli Baltic of the NIST for technical assistance in carrying out the neutron radiography experiments This work was supported by the U S Department of Commerce the NIST Ionizing Radiation Division the Director s office of NIST the NIST Center for Neutron Research and the Department of Energy through Interagency Agreement No DE-AI01-01EE50660 NR 18 TC 5 Z9 5 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 1769 EP 1775 DI 10.1016/j.jpowsour.2010.09.095 PG 7 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400013 ER PT J AU Weng, W Zhang, ZC Schlueter, JA Redfern, PC Curtiss, LA Amine, K AF Weng, Wei Zhang, Zhengcheng Schlueter, John A. Redfern, Paul C. Curtiss, Larry A. Amine, Khalil TI Improved synthesis of a highly fluorinated boronic ester as dual functional additive for lithium-ion batteries SO JOURNAL OF POWER SOURCES LA English DT Article DE Tetrafluorocatechol; Single crystal X ray diffraction; Lithium ion batteries; Overcharge protection AB The electrolyte additive 2-(pentafluorophenyl)-tetrafluoro 1 3 2-benzochoxaborole (PFPTFBB 1) was found to have a reversible redox potential at 4 43V vs Will This compound can function as an overcharge protection additive as well as anion receptor for lithium-ion batteries It has drawn a great deal of interest from industry but its use in relatively large quantities is limited by the production challenges of tetrafluorocatechol (TFC 3) which is the key starting chemical for the synthesis of PFPTFBB As part of a continuous effort in our research toward improving the safety of lithium-ion batteries we have performed the synthesis of TFC and optimized its synthesis process The X-ray single-crystal structures of TFC and the intermediate product 5 67 8-tetrafluoro-1 4-benpodioxane (4) during the process of PFPTFBB synthesis are reported for the first time Also presented is the lithium ion cell performance of PFPTFBB as redox shuttle in various electrolyte systems (C) 2010 Elsevier B V All rights reserved C1 [Weng, Wei; Zhang, Zhengcheng; Redfern, Paul C.; Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Lemont, IL 60439 USA. [Schlueter, John A.; Curtiss, Larry A.] Argonne Natl Lab, Div Mat Sci, Lemont, IL 60439 USA. [Curtiss, Larry A.] Argonne Natl Lab, Ctr Nanoscale Mat, Lemont, IL 60439 USA. RP Zhang, ZC (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave,Bldg 205, Lemont, IL 60439 USA. RI Weng, Wei/A-7623-2010; Amine, Khalil/K-9344-2013 FU [DE AC02 06CH11357] FX The submitted article ha been created by UChicago Argonne LLC Operator of Argonne National Laboratory (Argonne) Argonne a US Department of Energy Office of Scien e Laboratory is operated under Contract No DE AC02 06CH11357 The US Government retain for itself and others acting on its behalf a paid-up nonexclusive irrevocable worldwide license in said article to reproduce prepare derivative works distribute copies to the public and perform publicly and display publicly by or on behalf of the government NR 14 TC 13 Z9 14 U1 3 U2 27 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 2171 EP 2178 DI 10.1016/j.jpowsour.2010.09.110 PG 8 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400065 ER PT J AU Wang, DY Xiao, J Xu, W Nie, ZM Wang, CM Graff, G Zhang, JG AF Wang, Deyu Xiao, Jie Xu, Wu Nie, Zimin Wang, Chongmin Graff, Gordon Zhang, Ji-Guang TI Preparation and electrochemical investigation of Li2CoPO4F cathode material for lithium-ion batteries SO JOURNAL OF POWER SOURCES LA English DT Article DE Li2CoPO4F; Fluorophosphate; High voltage cathode; Lithium ion battery; Cathode; Electrolyte ID LI; SULFONE AB In this paper we report the electrochemical characteristics of a novel cathode material Li2CoPO4F prepared by solid-state reactions The solid-state reaction mechanism involved in synthesizing the Li2CoPO4F also is analyzed in this paper When cycled between 2 0 V and 5 0 V during cyclic voltammetry measurements the Li2CoPO4F samples present one fully reversible anodic reaction at 481 V When cycled between 2 0 V and 5 5V peaks occurring at 481 V and 51 V in the first anodic scan evolved to one broad oxidative mound-like pattern in subsequent cycles Correspondingly the X-ray diffraction (XRD) pattern of the Li2CoPO4F electrode discharged from 5 5V to 2 0 v is slightly different from the patterns exhibited by a fresh sample and the sample discharged from 5 0V to 2 0V This difference may correspond to a structural relaxation that appears above 5V In the constant current cycling measurements the Li2CoPO4F samples exhibited a capacity as high as 109 mAh g(-1) and maintained a good cyclability between 2 0 V and 5 5V vs Li/Li+ XRD measurements confirmed that the discharged state is Li2CoPO4F Combining these XRD results and electrochemical data proved that up to 1 mol l i(+) is extractable when charged to 5 5 V Published by Elsevier B V C1 [Wang, Deyu; Xiao, Jie; Xu, Wu; Nie, Zimin; Graff, Gordon; Zhang, Ji-Guang] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. [Wang, Chongmin] Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA. RP Zhang, JG (reprint author), Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. RI Deyu, Wang/J-9496-2014 FU Laboratory Directed Research and Development Program at Pacific Northwest National Laboratory (PNNL); Office of Vehicle Technologies of the U S Department of Energy (DOE); DOE s Office of Biological and Environmental Research at PNNL FX The authors are grateful for financial support from the Laboratory Directed Research and Development Program at Pacific Northwest National Laboratory (PNNL) and the Batteries for Advanced Transportation Technologies (BATT) program at the Office of Vehicle Technologies of the U S Department of Energy (DOE) The TEM work was performed in the Environmental Molecular Sciences Laboratory a national scientific user facility sponsored by DOE s Office of Biological and Environmental Research and located at PNNL NR 10 TC 33 Z9 34 U1 0 U2 52 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 2241 EP 2245 DI 10.1016/j.jpowsour.2010.10.021 PG 5 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400073 ER PT J AU Dong, JA Zhang, ZC Kusachi, Y Amine, K AF Dong, Jian Zhang, Zhengcheng Kusachi, Yuki Amine, Khalil TI A study of tri(ethylene glycol)-substituted trimethylsilane (1NM3)/LiBOB as lithium battery electrolyte SO JOURNAL OF POWER SOURCES LA English DT Article DE Silane; Oligo(ethylene glycol); 1NM3; Electrolytes; LiBOB; Lithium ion batteries ID LI-ION BATTERIES; POLYMER ELECTROLYTES; SIDE-CHAINS; SILOXANE; SALT; CONDUCTIVITY; COMPLEXES; LIBOB AB Silicon-based electrolyte has emerged as a primary candidate for the development of large lithium-ion batteries for electric vehicle (EV) and other systems in which safety is a primary consideration Comparing to the electrolyte used in the conventional lithium-ion batteries which are flammable volatile and highly reactive organic carbonate solvents silicon-based electrolytes are thermally and chemically stable less flammable and environmental benign Tri(ethylene glycol)-substituted trimethylsilane (1NM3) was identified as a focus of investigation due to its high conductivity and low viscosity We present the results of a systematic investigation of the 1NM3-based electrolytes with lithium bis(oxalate)borate (LiBOB) salt including temperature dependent ionic conductivity and lithium cell performance Lithium-ion cell with LiNi(1/3)Co(1/3)Mn(1/3)O(2) as the positive electrode and MAC graphite as the negative electrode has shown excellent cyclability using 1NM3-LiBOB as electrolyte (C) 2010 Elsevier B V All rights reserved C1 [Dong, Jian; Zhang, Zhengcheng; Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Kusachi, Yuki] Nissan Motor Co Ltd, EV Energy Dev, Kanagawa 2378523, Japan. RP Zhang, ZC (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Amine, Khalil/K-9344-2013 FU UChicago Argonne LLC Operator of Argonne National Laboratcry (Argonne) Argonne; US Department of Energy Office of Science laboratory [DE AC02 06CH11357]; EnerDel Inc; Nissan Motor Co Inc FX The submitted manuscript has been created by UChicago Argonne LLC Operator of Argonne National Laboratcry (Argonne) Argonne a US Department of Energy Office of Science laboratory is operated under Contract No DE AC02 06CH11357 The US Goverment retains for itself and others acting on its behalf a paid up nonexclusive irrevocable worldwide license in said article to reproduce prepare derivative works distribute copies to the public and perform publicly and display publicly by or on behalf of the Government; The authors thank EnerDel Inc and Nissan Motor Co Inc for the financial support for this research NR 22 TC 23 Z9 25 U1 0 U2 48 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 2255 EP 2259 DI 10.1016/j.jpowsour.2010.09.081 PG 5 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400076 ER PT J AU Gallagher, KG Nelson, PA Dees, DW AF Gallagher, Kevin G. Nelson, Paul A. Dees, Dennis W. TI Simplified calculation of the area specific impedance for battery design SO JOURNAL OF POWER SOURCES LA English DT Article DE Battery design; Lithium ion; Area specific impedance; Charge transfer resistance ID LI-ION INSERTION; ELECTROCHEMICAL IMPEDANCE; PERFORMANCE; ELECTRODES; VEHICLES; CARBON; CELLS AB Battery design is a critical aspect of material and system development that leads to the commercialization of effective electrochemical energy storage systems Successful modeling of battery designs relies upon accurate calculation of the area specific impedance (ASI) A simplified calculation of the ASI is presented that accounts for physical limitations without pet forming computationally expensive c lations The limiting currents for transport within the electrolyte and within the intercalation materials are Implemented into a linear form of the Butler-Volmer equation to calculate the interfacial imped ince Lithium-ion batteries are then designed to examine the effect of power to energy ratio on battery dimensions A large ASI is shown to be detrimental to battery design regardless if the increase in impedance results from mass transport limitations or a reduction in electrochemical active area due to small lectrode loadings The smaller electrochemical active area does not increase the voltage losses of a battery when a constant C-rate is maintained However the higher ASI values from low electrode loadings require a larger separator and current collector area resulting in a greater battery volume and weight to achieve similar energy and power requirements when compared to a system with a lower ASI (C) 2010 Elsevier B V All rights reserved C1 [Gallagher, Kevin G.; Nelson, Paul A.; Dees, Dennis W.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Gallagher, KG (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. FU U S Department of Energy; U S Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX Financial support from the U S Department of Energy is gratefully acknowledged The submitted manuscript has been created by UChicago Argonne LLC Operator of Argonne National Laboratory (Argonne) Argonne a U S Department of Energy Office of Science laboratory is operated under Contract No DE-AC02-06CH11357 The US Government retains for itself and others acting on its behalf a paid-up nonexclusive irrevocable worldwide license in said article to reproduce prepare derivative works distribute copies to the public and perform publicly and display publicly by or on behalf of the Government NR 23 TC 18 Z9 18 U1 2 U2 33 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 2289 EP 2297 DI 10.1016/j.jpowsour.2010.10.020 PG 9 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400083 ER PT J AU Stachowiak, JC Hayden, CC Sanchez, MAA Wang, J Bunker, BC Voigt, JA Sasaki, DY AF Stachowiak, Jeanne C. Hayden, Carl C. Sanchez, Mari Angelica A. Wang, Julia Bunker, Bruce C. Voigt, James A. Sasaki, Darryl Y. TI Targeting Proteins to Liquid-Ordered Domains in Lipid Membranes SO LANGMUIR LA English DT Article ID FLUORESCENCE CORRELATION SPECTROSCOPY; SUPRAMOLECULAR CHEMISTRY; TERNARY MIXTURES; MODEL MEMBRANES; TAGGED PROTEINS; CHOLESTEROL; MONOLAYERS; RAFTS; ORGANIZATION; PHOSPHOLIPIDS AB We demonstrate the construction of novel protein-lipid assemblies through the design of a lipid-like molecule, DPIDA, endowed with tail-driven affinity for specific lipid membrane phases and head-driven affinity for specific proteins. In studies performed on giant unilamellar vesicles (GUVs) with varying mole fractions of dipalymitoylphosphatidylcholine (DPPC), cholesterol, and diphytanoylphosphatidyl choline (DPhPC), DPIDA selectively partitioned into the more ordered phases, either solid or liquid-ordered (L(o)) depending on membrane composition. Fluorescence imaging established the phase behavior of the resulting quaternary lipid system. Fluorescence correlation spectroscopy confirmed the fluidity of the L(o) phase containing DPIDA. In the presence of CuCl(2), the iminodiacetic acid (IDA) headgroup of DPIDA forms the Cu(II)-IDA complex that exhibits a high affinity for histidine residues. His-tagged proteins were bound specifically to domains enriched in DPIDA, demonstrating the capacity to target protein binding selectively to both solid and L(o) phases. Steric pressure from the crowding of surface-bound proteins transformed the domains into tubules with persistence lengths that depended on the phase state of the lipid domains. C1 [Sasaki, Darryl Y.] Sandia Natl Labs, Livermore, CA 94551 USA. RP Sasaki, DY (reprint author), Sandia Natl Labs, POB 969, Livermore, CA 94551 USA. EM dysasak@sandia.gov FU U.S. Department of Energy, Division of Materials Sciences and Engineering; Division of Chemical Sciences, Geosciences, and Biosciences; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Research for this work was supported by the U.S. Department of Energy, Division of Materials Sciences and Engineering (chemical synthesis and materials preparation and characterization) and the Division of Chemical Sciences, Geosciences, and Biosciences (FCS measurements and other imaging capabilities). The his6-GFP protein was a generous gift of Dan Fletcher's laboratory at UC Berkeley, where it was prepared by Dr. Ross Rounsevell. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 31 TC 13 Z9 13 U1 0 U2 23 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0743-7463 J9 LANGMUIR JI Langmuir PD FEB 15 PY 2011 VL 27 IS 4 BP 1457 EP 1462 DI 10.1021/la1041458 PG 6 WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 717LY UT WOS:000287048900034 PM 21155607 ER PT J AU Yufa, NA Fronk, SL Rosenthal, SJ Darling, SB Lopes, WA Sibener, SJ AF Yufa, N. A. Fronk, S. L. Rosenthal, S. J. Darling, Seth B. Lopes, W. A. Sibener, S. J. TI Self-assembled monolayer-modified block copolymers for chemical surface nanopatterning SO MATERIALS CHEMISTRY AND PHYSICS LA English DT Article DE Polymers; Nanostructures; Composite materials; Surface properties ID DIBLOCK COPOLYMER; NANOSCALE DOMAINS; TEMPLATES; FILMS; NANOPARTICLES; POLYMERS; ARRAYS; TIO2 AB Thin-film poly(styrene-block-methyl methacrylate) diblock copolymer (PS-b-PMMA) is used to create chemically patterned surfaces via metal deposition combined with self-assembled monolayers (SAMs) and UV exposure. We use this method to produce surfaces that are chemically striped on the scale of a few tens of nanometers. Atomic force and transmission electron microscopies are used to verify the spatially localized organization of materials, and contact angle measurements confirm the chemical tunability of these scaffolds. These surfaces may be used for arraying nanoscale objects, such as nanoparticles or biological species, or for electronic, magnetic memory or photovoltaic applications. (C) 2010 Elsevier B.V. All rights reserved. C1 [Yufa, N. A.; Fronk, S. L.; Rosenthal, S. J.; Sibener, S. J.] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA. [Yufa, N. A.; Fronk, S. L.; Rosenthal, S. J.; Sibener, S. J.] Univ Chicago, Dept Chem, Chicago, IL 60637 USA. [Darling, Seth B.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Lopes, W. A.] Williams Coll, Dept Phys, Williamstown, MA 01267 USA. RP Sibener, SJ (reprint author), Univ Chicago, James Franck Inst, 929 E 57th St, Chicago, IL 60637 USA. EM s-sibener@uchicago.edu FU Army Research Office/DTRA; U of C MRSEC NSF [NSF-DMR-0213745]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX The authors would like to thank Ling-Nan Zhou, Nathan Keim and Michelle Driscoll for their assistance with contact-angle measurements. This work was supported by the Army Research Office/DTRA. Additional funding for this work has been provided by U of C MRSEC NSF grant NSF-DMR-0213745. Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract no. DE-AC02-06CH11357. NR 32 TC 2 Z9 2 U1 0 U2 22 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0254-0584 J9 MATER CHEM PHYS JI Mater. Chem. Phys. PD FEB 15 PY 2011 VL 125 IS 3 BP 382 EP 385 DI 10.1016/j.matchemphys.2010.10.052 PG 4 WC Materials Science, Multidisciplinary SC Materials Science GA 715RZ UT WOS:000286904800013 ER PT J AU Ni, N Jia, S Samolyuk, GD Kracher, A Sefat, AS Bud'ko, SL Canfield, PC AF Ni, N. Jia, S. Samolyuk, G. D. Kracher, A. Sefat, A. S. Bud'ko, S. L. Canfield, P. C. TI Physical properties of GdFe2(AlxZn1-x)(20) SO PHYSICAL REVIEW B LA English DT Article ID HEAVY-FERMION COMPOUNDS; TEMPERATURE; RT2ZN20; RH; RU; CO AB The high ferromagnetic ordering temperature of the dilute, rare-earth-bearing, intermetallic compound GdFe2Zn20 has been understood as being the consequence of the Gd3+ moment being embedded in a nearly ferromagnetic Fermi liquid. To test this understanding in detail, single crystals of the pseudoternary series GdFe2(AlxZn1-x)(20) (x <= 0.122) and YFe2(AlxZn1-x)(20) (x <= 0.121) were grown out of Zn-rich solution. Magnetization, heat capacity, and resistivity measurements show that, with Al doping, the ferromagnetic phase transition temperatures of the GdFe2(AlxZn1-x)(20) compounds decrease from 86 K (x = 0) to 10 K (x = 0.122); for the nonmagnetic analog, the YFe2(AlxZn1-x)(20) series, the Stoner enhancement factor Z decreases from 0.88 (x = 0) to 0.35 (x = 0.121) in a similar manner. Tight-binding linear-muffin-tin orbital atomic-sphere approximation band structure calculations are used to rationalize this trend. These results, together with the earlier studies of the R(Fe1-xCox)(2)Zn-20 (R = Gd and Y) series, clearly highlight the importance of band filling and the applicability of even a simple, rigid-band model to these compounds. C1 Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Ni, N (reprint author), Princeton Univ, Dept Chem, Princeton, NJ 08544 USA. RI Canfield, Paul/H-2698-2014; Sefat, Athena/R-5457-2016 OI Sefat, Athena/0000-0002-5596-3504 FU Department of Energy, Basic Energy Sciences [DE-AC02-07CH11358] FX We would like to thank Qisheng Lin and John. D. Corbett for the assistance in powder x-ray measurements. The work at the Ames Laboratory was supported by the Department of Energy, Basic Energy Sciences under Contract No. DE-AC02-07CH11358. NR 22 TC 10 Z9 10 U1 2 U2 12 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 15 PY 2011 VL 83 IS 5 AR 054416 DI 10.1103/PhysRevB.83.054416 PG 7 WC Physics, Condensed Matter SC Physics GA 721MR UT WOS:000287359500005 ER PT J AU Wiley, HS AF Wiley, H. Steven TI Integrating Multiple Types of Data for Signaling Research: Challenges and Opportunities SO SCIENCE SIGNALING LA English DT Article ID SYSTEMS BIOLOGY AB New technologies promise to provide unprecedented amounts of information that can build a foundation for creating predictive models of cell signaling pathways. To be useful, however, this information must be integrated into a coherent framework. In addition, the sheer volume of data gathered from the new technologies requires computational approaches for its analysis. Unfortunately, there are many barriers to data integration and analysis, mostly because of a lack of adequate data standards and their inconsistent use by scientists. However, solving the fundamental issues of data sharing will enable the investigation of entirely new areas of cell signaling research. C1 Pacific NW Natl Lab, EMSL, Richland, WA 99352 USA. RP Wiley, HS (reprint author), Pacific NW Natl Lab, EMSL, Richland, WA 99352 USA. EM steven.wiley@pnl.gov OI Wiley, Steven/0000-0003-0232-6867 NR 18 TC 8 Z9 8 U1 0 U2 2 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 1937-9145 J9 SCI SIGNAL JI Sci. Signal. PD FEB 15 PY 2011 VL 4 IS 160 AR pe9 DI 10.1126/scisignal.2001826 PG 3 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 721KF UT WOS:000287351300004 PM 21325205 ER PT J AU Ramey, VH Wang, HW Nakajima, Y Wong, A Liu, JA Drubin, D Barnes, G Nogales, E AF Ramey, Vincent H. Wang, Hong-Wei Nakajima, Yuko Wong, Amanda Liu, Jian Drubin, David Barnes, Georjana Nogales, Eva TI The Dam1 ring binds to the E-hook of tubulin and diffuses along the microtubule SO MOLECULAR BIOLOGY OF THE CELL LA English DT Article ID YEAST DASH COMPLEX; CHROMOSOME SEGREGATION; BUDDING YEAST; KINETOCHORE; DEPOLYMERIZATION; MECHANISM; MOVEMENT; DRIVEN; ARCHITECTURE; ATTACHMENT AB There has been much effort in recent years aimed at understanding the molecular mechanism by which the Dam1 kinetochore complex is able to couple microtubule depolymerization to poleward movement. Both a biased diffusion and a forced walk model have been proposed, and several key functional aspects of Dam1-microtubule binding are disputed. Here, we investigate the elements involved in tubulin-Dam1 complex interactions and directly visualize Dam1 rings on microtubules in order to infer their dynamic behavior on the microtubule lattice and its likely relevance at the kinetochore. We find that the Dam1 complex has a preference for native tubulin over tubulin that is lacking its acidic C-terminal tail. Statistical mechanical analysis of images of Dam1 rings on microtubules, applied to both the distance between rings and the tilt angle of the rings with respect to the microtubule axis, supports a diffusive ring model. We also present a cryo-EM reconstruction of the Dam1 ring, likely the relevant assembly form of the complex for energy coupling during microtubule depolymerization in budding yeast. The present studies constitute a significant step forward by linking structural and biochemical observations toward a comprehensive understanding of the Dam1 complex. C1 [Ramey, Vincent H.; Wang, Hong-Wei; Nogales, Eva] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. [Ramey, Vincent H.] Univ Calif Berkeley, Biophys Grad Grp, Berkeley, CA 94720 USA. [Nakajima, Yuko; Wong, Amanda; Barnes, Georjana; Nogales, Eva] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Wong, Amanda; Nogales, Eva] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA. [Liu, Jian] NHLBI, Computat Biol Lab, Bethesda, MD 20824 USA. RP Nogales, E (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. EM enogales@lbl.gov RI Liu, Jian/C-6755-2011 FU NIGMS [2PO1GM51487C, R01GM47842] FX We would like to thank Greg Alushin for help with pelleting assays, Nate Krefman for his valuable comments on the manuscript, and Daniel Smith for stimulating discussion about statistical modeling. This work was funded by NIGMS grants to E.N. (2PO1GM51487C) and G. B. (R01GM47842). E.N. is a Howard Hughes Medical Institute Investigator. NR 31 TC 20 Z9 20 U1 0 U2 3 PU AMER SOC CELL BIOLOGY PI BETHESDA PA 8120 WOODMONT AVE, STE 750, BETHESDA, MD 20814-2755 USA SN 1059-1524 J9 MOL BIOL CELL JI Mol. Biol. Cell PD FEB 15 PY 2011 VL 22 IS 4 BP 457 EP 466 DI 10.1091/mbc.E10-10-0841 PG 10 WC Cell Biology SC Cell Biology GA 720TS UT WOS:000287305700003 PM 21169562 ER PT J AU Turitsyn, KS Chertkov, M Vucelja, M AF Turitsyn, Konstantin S. Chertkov, Michael Vucelja, Marija TI Irreversible Monte Carlo algorithms for efficient sampling SO PHYSICA D-NONLINEAR PHENOMENA LA English DT Article DE MCMC algorithms; Mixing; Monte Carlo methods ID MEAN-FIELD; DYNAMICS; SIMULATIONS AB Equilibrium systems evolve according to Detailed Balance (DB). This principle guided the development of Monte Carlo sampling techniques, of which the Metropolis-Hastings (MH) algorithm is the famous representative. It is also known that DB is sufficient but not necessary. We construct irreversible deformation of a given reversible algorithm capable of dramatic improvement of sampling from known distribution. Our transformation modifies transition rates keeping the structure of transitions intact. To illustrate the general scheme we design an Irreversible version of Metropolis-Hastings (IMH) and test it on an example of a spin cluster. Standard MH for the model suffers from critical slowdown, while IMH is free from critical slowdown. Published by Elsevier B.V. C1 [Turitsyn, Konstantin S.; Chertkov, Michael; Vucelja, Marija] LANL, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Turitsyn, Konstantin S.; Chertkov, Michael; Vucelja, Marija] LANL, Div Theoret, Los Alamos, NM 87545 USA. [Turitsyn, Konstantin S.] Landau Inst Theoret Phys, Moscow 142432, Russia. [Chertkov, Michael; Vucelja, Marija] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel. RP Turitsyn, KS (reprint author), LANL, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. EM turitsyn@gmail.com RI Turitsyn, Konstantin/K-5978-2012; Vucelja, Marija/F-4880-2013; Chertkov, Michael/O-8828-2015; OI Turitsyn, Konstantin/0000-0002-7997-8962; Vucelja, Marija/0000-0003-0742-5290; Chertkov, Michael/0000-0002-6758-515X FU US Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396] FX The authors are grateful to V. Chernyak, F. Krzakala, J. Machta, D. Shah and T. Witten for inspiring discussions and useful remarks. The work at LANL was carried out under the auspices of the National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396. MC also acknowledges the Weston Visiting Professorship Program supporting his stay at the Weizmann Institute, where part of this work was done. NR 22 TC 24 Z9 24 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-2789 J9 PHYSICA D JI Physica D PD FEB 15 PY 2011 VL 240 IS 4-5 BP 410 EP 414 DI 10.1016/j.physd.2010.10.003 PG 5 WC Mathematics, Applied; Physics, Multidisciplinary; Physics, Mathematical SC Mathematics; Physics GA 717OT UT WOS:000287058000007 ER PT J AU Grice, WP Bennink, RS Goodman, DS Ryan, AT AF Grice, W. P. Bennink, R. S. Goodman, D. S. Ryan, A. T. TI Spatial entanglement and optimal single-mode coupling SO PHYSICAL REVIEW A LA English DT Article ID GENERATION; FIBER AB The challenge of optimizing the emission into single spatial modes of photons from spontaneous parametric down-conversion is addressed from the perspective of spatial entanglement. It is shown that single-mode coupling is most efficient in the absence of entanglement. Evidence of the relationship between spatial entanglement and pump focusing is revealed through experimental results, and numerical simulations show that spatial entanglement and single-mode coupling are optimized under nearly identical pump parameters. C1 [Grice, W. P.; Bennink, R. S.] Oak Ridge Natl Lab, Ctr Quantum Informat Sci, Computat Sci & Engn Div, Oak Ridge, TN 37831 USA. [Goodman, D. S.] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA. [Ryan, A. T.] Redwood Photon, San Jose, CA 95131 USA. RP Grice, WP (reprint author), Oak Ridge Natl Lab, Ctr Quantum Informat Sci, Computat Sci & Engn Div, Oak Ridge, TN 37831 USA. EM gricew@ornl.gov RI Grice, Warren/L-8466-2013; OI Grice, Warren/0000-0003-4266-4692 FU Intelligence Advanced Research Projects Activity (IARPA); Oak Ridge National Laboratory FX This work was sponsored by the Intelligence Advanced Research Projects Activity (IARPA) and by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the US Department of Energy. NR 15 TC 14 Z9 14 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD FEB 15 PY 2011 VL 83 IS 2 AR 023810 DI 10.1103/PhysRevA.83.023810 PG 5 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 721MG UT WOS:000287358300005 ER PT J AU Quan, HT Zhu, JX AF Quan, H. T. Zhu, Jian-Xin TI Interplay between superconductivity and antiferromagnetism in a multilayered system SO PHYSICAL REVIEW B LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; SO(5) THEORY; INHOMOGENEITY; MAGNETISM; PHYSICS; OXIDES AB Based on a microscopic model, we study the interplay between superconductivity and antiferromagnetism in a multilayered system, where two superconductors are separated by an antiferromagnetic region. Within a self-consistent mean-field theory, this system is solved numerically. We find that the antiferromagnetism in the middle layers profoundly affects the supercurrent flowing across the junction, while the phase difference across the junction influences the development of antiferromagnetism in the middle layers. This study may not only shed new light on material design and material engineering, but it may also bring important insights to building Josephson-junction-based quantum devices, such as superconducting quantum interference devices and superconducting qubits. C1 [Quan, H. T.; Zhu, Jian-Xin] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Quan, HT (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM jxzhu@lanl.gov RI Quan, Haitao/G-8521-2012; OI Quan, Haitao/0000-0002-4130-2924; Zhu, Jianxin/0000-0001-7991-3918 FU National Nuclear Security Administration of the US DOE at LANL [DE-AC52-06NA25396]; LANL [X96Y]; US DOE Office of Science FX We thank A. V. Balatsky, Quanxi Jia, A. J. Taylor, and S. Trugman for useful discussions. This work was carried out under the auspices of the National Nuclear Security Administration of the US DOE at LANL under Contract No. DE-AC52-06NA25396, the LANL LDRD-DR Project X96Y, and the US DOE Office of Science. NR 23 TC 1 Z9 1 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 15 PY 2011 VL 83 IS 6 AR 064508 DI 10.1103/PhysRevB.83.064508 PG 5 WC Physics, Condensed Matter SC Physics GA 721OU UT WOS:000287365100007 ER PT J AU van der Laan, G Telling, ND Potenza, A Dhesi, SS Arenholz, E AF van der Laan, G. Telling, N. D. Potenza, A. Dhesi, S. S. Arenholz, E. TI Anisotropic x-ray magnetic linear dichroism and spectromicroscopy of interfacial Co/NiO(001) SO PHYSICAL REVIEW B LA English DT Article ID 2P ABSORPTION-SPECTRA; MICROSCOPIC ORIGIN; CIRCULAR-DICHROISM; THIN-FILMS; MAGNETOCRYSTALLINE ANISOTROPY; ANTIFERROMAGNETIC NIO; DOMAIN WALLS; MOMENTS; SURFACE; FE AB Photoemission electron microscopy (PEEM) with linearly polarized x rays is used to determine the orientation of antiferromagnetic domains by monitoring the relative peak intensities at the 3d transition metal L(2) absorption edge. In such an analysis it is necessary to take into account the orientations of the x-ray polarization (E) over cap and magnetization (H) over cap with respect to the crystalline axes. We address this problem by presenting a general expression of the angular dependence for both x-ray absorption (XA) spectroscopy and x-ray magnetic linear dichroism (XMLD) for arbitrary directions of (E) over cap and (H) over cap in the (001) cubic plane. In cubic symmetry the angular-dependent XMLD is a linear combination of two spectra with different photon energy dependencies. As a result the intensity maxima of the XA and XMLD are no longer found for (E) over cap parallel to (H) over cap and their directions will vary with photon energy. When (E) over cap or (H) over cap is along a high-symmetry axis there is only one spectrum. The angular-dependent XMLD can be separated into an isotropic part, which is symmetric around (H) over cap, and an anisotropic part, which depends on the orientation of the crystal axes. The anisotropic part has maximal intensity when (E) over cap and (H) over cap have equal but opposite angles with respect to the [100] direction. The Ni(2+) L(2) edge has the peculiarity that the isotropic part vanishes, which has the interesting consequence that the maximum in the XMLD intensity is obtained not only for (E) over cap parallel to(H) over cap [100] but also for ((E) over cap [110], (H) over cap [1 (1) over bar0]). We apply the angular-dependent theory to determine the spin orientation near the Co/NiO(100) interface. The PEEM images show that the ferromagnetic Co spins and antiferromagnetic NiO spins are aligned perpendicular to each other. By rotating the sample with respect to the linear x-ray polarization we furthermore find that the perpendicular coupling with the ferromagnetic Co layer at the interface causes a canting of the antiferromagnetic Ni moments. This shows that taking into account the angular dependence of the XMLD in the detailed analysis of PEEM images can lead to an accurate retrieval of the spin axes of the antiferromagnetic domains. C1 [van der Laan, G.; Potenza, A.; Dhesi, S. S.] Diamond Light Source, Didcot OX11 0DE, Oxon, England. [Telling, N. D.] Keele Univ, Inst Sci & Technol Med, Stoke On Trent ST4 7QB, Staffs, England. [Arenholz, E.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP van der Laan, G (reprint author), Diamond Light Source, Didcot OX11 0DE, Oxon, England. RI Gastelois, Pedro/F-3891-2012; van der Laan, Gerrit/Q-1662-2015 OI van der Laan, Gerrit/0000-0001-6852-2495 NR 52 TC 11 Z9 11 U1 5 U2 39 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 15 PY 2011 VL 83 IS 6 AR 064409 DI 10.1103/PhysRevB.83.064409 PG 9 WC Physics, Condensed Matter SC Physics GA 721OU UT WOS:000287365100002 ER PT J AU Woods, J Pellegrino, J Burch, J AF Woods, Jason Pellegrino, John Burch, Jay TI Generalized guidance for considering pore-size distribution in membrane distillation SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE Pore-size distribution; Membrane distillation; Membrane heat pump; Mass transfer modeling; Dusty-gas model ID HYDROPHOBIC POROUS MEMBRANES; ATOMIC-FORCE MICROSCOPY; HOLLOW-FIBER MEMBRANES; CARLO-SIMULATION MODEL; MASS-TRANSPORT; FILTRATION MEMBRANES; MOLECULAR CURRENT; HEAT; COEFFICIENTS; FLUX AB Does pore-size distribution need to be considered to accurately model vapor transport in membrane distillation (MD)? This paper addresses that question from a theoretical perspective. Although some previous work has discussed pore-size distribution in MD, there has yet to be a comprehensive, general analysis of its effects on MD and its various configurations. In this work, a numerical model is used to calculate the flux through all pore sizes to estimate the effect of pore-size distribution on MD flux. The modeling shows that the error in the calculated flux incurred by neglecting pore-size distribution is largest for a microfiltration process, where viscous flow dominates, somewhat smaller for vacuum MD, where Knudsen flow dominates, smaller still for direct-contact MD, where molecular diffusion usually dominates, and smallest for air-gap MD, where the air gap dominates the overall mass transfer resistance. Considering a membrane with a mean pore size of at least 100 nm and a geometric standard deviation of the pore size of 1.2, the error is: 9% for vacuum MD, 3.5% for direct-contact MD, and less than 1% for air-gap MD. (C) 2010 Elsevier B.V. All rights reserved. C1 [Woods, Jason; Burch, Jay] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Woods, Jason; Pellegrino, John] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA. RP Woods, J (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM jason.woods@nrel.gov; john.pellegrino@colorado.edu OI PELLEGRINO, JOHN/0000-0001-7749-5003; Woods, Jason/0000-0002-7661-2658 FU Department of Energy (DOE) FX The authors would like to acknowledge the support of the Department of Energy (DOE) Emerging Technologies Program from the DOE Energy Efficiency and Renewable Energy Buildings Technologies Program. They would also like to thank four anonymous reviewers for their comments and suggestions. NR 47 TC 20 Z9 23 U1 0 U2 12 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 FEB 15 PY 2011 VL 368 IS 1-2 BP 124 EP 133 DI 10.1016/j.memsci.2010.11.041 PG 10 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 712YI UT WOS:000286701800016 ER PT J AU Nam, SH Lee, J Yin, SZ AF Nam, Sung Hyun Lee, Jonathan Yin, Shizhuo TI Control of resonant peak depths of tunable long-period fiber gratings using overcoupling SO OPTICS COMMUNICATIONS LA English DT Article DE Long period fiber gratings; Tunable filters; Electro-optic tuning; Mode coupling ID INDEX AB We present a method to reduce changes in the resonant peak depth of a long period fiber grating (LPFG) as the resonant band is tuned by varying the external refractive index We theoretically analyze the effects of the initial coupling strength on the peak depth change as external refractive index is varied By controlling the initial coupling strength it is experimentally demonstrated that an optimum peak depth can be obtained over a range of operating wavelengths that will maximize the sensitivity and stability of LPFG based sensors and tunable filters (C) 2010 Elsevier BV All rights reserved C1 [Nam, Sung Hyun; Lee, Jonathan; Yin, Shizhuo] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA. RP Nam, SH (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, POB 1663, Los Alamos, NM 87545 USA. NR 13 TC 3 Z9 4 U1 1 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0030-4018 J9 OPT COMMUN JI Opt. Commun. PD FEB 15 PY 2011 VL 284 IS 4 BP 961 EP 964 DI 10.1016/j.optcom.2010.10.027 PG 4 WC Optics SC Optics GA 701YL UT WOS:000285861000011 ER PT J AU Noy, A AF Noy, Aleksandr TI Bionanoelectronics SO ADVANCED MATERIALS LA English DT Article ID FIELD-EFFECT TRANSISTORS; WALLED CARBON NANOTUBES; DIMENSIONAL LIPID-BILAYERS; LABEL-FREE DETECTION; ELECTRICAL DETECTION; NANOWIRE NANOSENSORS; SILICON NANOWIRES; ELECTRONIC-PROPERTIES; BIOSENSORS; ARRAYS AB Every cell in a living organisms performs a complex array of functions using a vast arsenal of proteins, ion channels, pumps, motors, signaling molecules, and cargo carriers. With all the progress that humankind has made to date in the development of sophisticated machinery and computing capabilities, understanding and communicating with living systems on that level of complexity lags behind. A breakthrough in these capabilities could only come if a way is found to integrate biological components into artificial devices. The central obstacle for this vision of bionanoelectronics is the absence of a versatile interface that facilitates two-way communication between biological and electronic structures. 1D nanomaterials, such as nanotubes and nanowires, open up the possibility of constructing tight interfaces that could enable such bidirectional flow of information. This report discusses the overall progress in building such interfaces on the level of individual proteins and whole cells and focuses on the latest efforts to create device platforms that integrate membrane proteins, channels, and pumps with nanowire bioelectronics. C1 [Noy, Aleksandr] Univ Calif Merced, Sch Nat Sci, Merced, CA 95344 USA. [Noy, Aleksandr] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Noy, A (reprint author), Univ Calif Merced, Sch Nat Sci, Merced, CA 95344 USA. EM anoy@ucmerced.edu FU US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02 - 05CH11231.6] FX This work was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering. Work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02 - 05CH11231.6. NR 101 TC 60 Z9 60 U1 4 U2 72 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 0935-9648 EI 1521-4095 J9 ADV MATER JI Adv. Mater. PD FEB 15 PY 2011 VL 23 IS 7 BP 807 EP 820 DI 10.1002/adma.201003751 PG 14 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 725TH UT WOS:000287668500002 PM 21328478 ER PT J AU Troshichev, O Stauning, P Liou, K Reeves, G AF Troshichev, O. Stauning, P. Liou, K. Reeves, G. TI Saw-tooth substorms: Inconsistency of repetitive bay-like magnetic disturbances with behavior of aurora SO ADVANCES IN SPACE RESEARCH LA English DT Article DE Magnetospheric substorm; Magnetic disturbance onset; Aurora breakup; Particle injections on geostationary orbit ID PERIODIC MAGNETOSPHERIC SUBSTORMS; ART. NO. A07208; INJECTIONS; ONSET AB The relationships between the magnetic disturbance onsets, aurora dynamics and particles injections at the geostationary orbit have been analyzed in detail for 25 sawtooth substorms. It is shown that inconsistency between the above signatures of the substorms onset is typical of the powerful sawtooth substorms, unlike the isolated ("classical") magnetospheric substorms. The distinguishing feature of the aurora in case of saw-tooth substorms is permanently high level of auroral activity irrespective of the magnetic disturbance onsets and the double oval structure of the aurora display. The close relationship between the aurora behavior and the particle injections at geostationary orbit is also broken. The conclusion is made, that the classical concept of the substorm development, put forward by Akasofu (1964) for isolated substorms, is not workable in cases of the sawtooth disturbances, when the powerful solar wind energy pumping into the magnetosphere provides a permanent powerful aurora particle precipitation into the auroral zone. (C) 2010 COSPAR. Published by Elsevier Ltd. All rights reserved. C1 [Troshichev, O.] Arctic & Antarctic Res Inst, St Petersburg 199226, Russia. [Stauning, P.] Danish Meteorol Inst, Copenhagen, Denmark. [Liou, K.] JHU Appl Phys Lab, Laurel, MD USA. [Reeves, G.] Los Alamos Natl Lab, Space & Atmospher Sci Grp, Los Alamos, NM USA. RP Troshichev, O (reprint author), Arctic & Antarctic Res Inst, St Petersburg 199226, Russia. EM olegtro@aari.nw.ru RI Reeves, Geoffrey/E-8101-2011 OI Reeves, Geoffrey/0000-0002-7985-8098 NR 26 TC 9 Z9 9 U1 0 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0273-1177 J9 ADV SPACE RES JI Adv. Space Res. PD FEB 15 PY 2011 VL 47 IS 4 BP 702 EP 709 DI 10.1016/j.asr.2010.09.026 PG 8 WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA 722LG UT WOS:000287433100015 ER PT J AU Liu, C Luo, Y Fang, N Chen, DDY AF Liu, Chang Luo, Yong Fang, Ning Chen, David D. Y. TI Analyte Distribution at Channel Intersections of Electro-Fluid-Dynamic Devices SO ANALYTICAL CHEMISTRY LA English DT Article ID LATEST DEVELOPMENTS; ANALYSIS SYSTEMS; ELECTROPHORESIS AB Mass conservation is the guiding principle for analyte distribution at channel intersections of microfluidic devices, where analyte migration is mainly driven by an applied electric field, and in electro-fluid-dynamic (EFD) devices, where multiple fields and pressures can be applied simultaneously on the same channel network. This paper introduces another type of conservation, the conservation of effective volumetric flow rate, at channel intersections when the conductivity of the solution in the intersecting channels is maintained constant. This conservation principle provides an additional criterion needed to describe analyte migration in channels connecting to a common intersection and to predict how analyte is distributed into individual channels in the channel network of EFD devices, when multiple voltages and pressures are applied. The theoretical bases of effective volumetric flow rate balance are discussed, and the potential use of this principle in conjunction with the principle of Mass conservation to predict the migration behavior of analytes is demonstrated. Junctions of different geometry in EFD devices are used to demonstrate the validity of these equations, and the measured velocities and numbers of microbeads in each channel agree with the predicted values. C1 [Liu, Chang; Chen, David D. Y.] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada. [Luo, Yong] Dalian Univ Technol, Sch Pharmaceut Sci & Technol, Dalian 116023, Liaoning, Peoples R China. [Fang, Ning] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. [Fang, Ning] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Chen, DDY (reprint author), Univ British Columbia, Dept Chem, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada. EM chen@chem.ubc.ca RI Liu, Chang/F-5472-2011; Chen, David/B-4849-2012; Fang, Ning/A-8456-2011; OI Chen, David/0000-0002-3669-6041; Liu, Chang/0000-0003-0508-4357 FU Natural Sciences and Engineering Research Council of Canada; DOE by Iowa State University [EF-AC02-07CH11358] FX D.D.Y.C. was supported by the Natural Sciences and Engineering Research Council of Canada, and N.F. was supported by the Director of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, U.S. Department of Energy (DOE). The Ames Laboratory is operated for DOE by Iowa State University under Contract No. EF-AC02-07CH11358. NR 15 TC 3 Z9 3 U1 3 U2 29 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD FEB 15 PY 2011 VL 83 IS 4 BP 1189 EP 1192 DI 10.1021/ac200115g PG 4 WC Chemistry, Analytical SC Chemistry GA 719CK UT WOS:000287176900006 PM 21268610 ER PT J AU Diekmann, J Adams, KL Klunder, GL Evans, L Steele, P Vogt, C Herberg, JL AF Diekmann, Joana Adams, Kristl L. Klunder, Gregory L. Evans, Lee Steele, Paul Vogt, Carla Herberg, Julie L. TI Portable Microcoil NMR Detection Coupled to Capillary Electrophoresis SO ANALYTICAL CHEMISTRY LA English DT Article ID MAGNETIC-RESONANCE-SPECTROSCOPY; LASER-LATHE LITHOGRAPHY; TRIFLUOROACETIC-ACID; ION CHROMATOGRAPHY; GAS-CHROMATOGRAPHY; AQUATIC ORGANISMS; SAMPLE STACKING; WATER SAMPLES; F-19 NMR; H-1-NMR AB High-efficiency separation techniques, such as capillary electrophoresis (CE), coupled to a nondestructive nuclear magnetic resonance (NMR) spectrometer offer the ability to separate, chemically identify, and provide structural information on analytes in small sample volumes. Previous CE-NMR coupled systems utilized laboratory-scale NMR magnets and spectrometers, which require very long separation capillaries. New technological developments in electronics have reduced the size of the NMR system, and small 1-2 T permanent magnets provide the possibilities of a truly portable NMR The microcoils used in portable and laboratory-scale NMR may offer the advantage of improved mass sensitivity because the limit of detection (LOD) is proportional to the coil diameter. In this work, CE is coupled with a portable, briefcase-sized NMR system that incorporates a microcoil probe and a 1.8 T permanent magnet to measure (19)F NMR spectra. Separations of fluorinated molecules are demonstrated with stopped- and continuous-flow NMR detection. The results demonstrate that coupling CE to a portable NMR instrument is feasible and can provide a low-cost method to obtain structural information on microliter samples. An LOD of 31.8 nmol for perfluorotributylamine with a resolution of 4 ppm has been achieved with this system. C1 [Adams, Kristl L.; Klunder, Gregory L.; Evans, Lee; Steele, Paul; Herberg, Julie L.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Diekmann, Joana; Vogt, Carla] Leibniz Univ Hannover, Fac Nat Sci, Inst Inorgan Chem, Dept Analyt Chem, D-30167 Hannover, Germany. RP Herberg, JL (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. EM herberg1@llnl.gov RI Adams, Kristl/A-5748-2009 FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was supported and performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 52 TC 16 Z9 16 U1 2 U2 36 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD FEB 15 PY 2011 VL 83 IS 4 BP 1328 EP 1335 DI 10.1021/ac102389b PG 8 WC Chemistry, Analytical SC Chemistry GA 719CK UT WOS:000287176900025 PM 21235258 ER PT J AU Huang, CS George, S Lu, M Chaudhery, V Tan, RM Zangar, RC Cunningham, BT AF Huang, Cheng-Sheng George, Sherine Lu, Meng Chaudhery, Vikram Tan, Ruimin Zangar, Richard C. Cunningham, Brian T. TI Application of Photonic Crystal Enhanced Fluorescence to Cancer Biomarker Microarrays SO ANALYTICAL CHEMISTRY LA English DT Article ID ANTIBODY MICROARRAYS; BREAST-CANCER; PROTEIN; PROTEOMICS; FILMS; IMMUNOASSAY; SENSITIVITY; DIAGNOSTICS; PARTICLES; PROMAT AB We report on the use of photonic crystal surfaces as a high-sensitivity platform for detection of a panel of cancer biomarkers in a protein microarray format. The photonic crystal surface is designed to provide an optical resonance at the excitation wavelength of cyanine-5 (Cy5), thus providing an increase in fluorescent intensity for Cy5-labeled analytes measured with a confocal microarray scanner, compared to a glass surface. The sandwich enzyme-linked immunosorbent assay (ELISA) is undertaken on a microarray platform to undertake a simultaneous, multiplex analysis of 24 antigens on a single chip. Our results show that the resonant excitation effect increases the signal-to-noise ratio by 3.8- to 6.6-fold, resulting in a decrease in detection limits of 6-89%, with the exact enhancement dependent upon the antibody antigen interaction. Dose response characterization of the photonic crystal antibody microarrays shows the capability to detect common cancer biomarkers in the <2 pg/mL concentration range within a mixed sample. C1 [Huang, Cheng-Sheng; Lu, Meng; Chaudhery, Vikram; Cunningham, Brian T.] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA. [George, Sherine; Cunningham, Brian T.] Univ Illinois, Dept Bioengn, Urbana, IL 61801 USA. [Lu, Meng] SRU Biosyst Inc, Woburn, MA 01801 USA. [Tan, Ruimin; Zangar, Richard C.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Cunningham, BT (reprint author), 208 N Wright St, Urbana, IL 61801 USA. EM bcunning@illinois.edu FU National Institutes of Health [GM086382A]; National Science Foundation [CBET 07-54122] FX This work was supported by the National Institutes of Health (Grant No. GM086382A) and the National Science Foundation (Grant No. CBET 07-54122). Any opinions, findings, conclusions, or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Institutes of Health or the National Science Foundation. NR 34 TC 62 Z9 64 U1 3 U2 47 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD FEB 15 PY 2011 VL 83 IS 4 BP 1425 EP 1430 DI 10.1021/ac102989n PG 6 WC Chemistry, Analytical SC Chemistry GA 719CK UT WOS:000287176900039 PM 21250635 ER PT J AU Qiu, XF Howe, JY Meyer, HM Tuncer, E Paranthaman, MP AF Qiu, Xiaofeng Howe, Jane Y. Meyer, Harry M., III Tuncer, Enis Paranthaman, M. Parans TI Thermal stability of HfO2 nanotube arrays SO APPLIED SURFACE SCIENCE LA English DT Article DE Hafnium oxide; HfO2; Nanotube arrays; Anodic oxidation; Thermal stability; Dielectric properties ID ANODIC TIO2 NANOTUBES; TITANIA NANOTUBES; HAFNIUM OXIDE; SOLAR-CELLS; ANODIZATION; FILMS; FABRICATION; OXIDATION; MEMBRANES; ZIRCONIA AB Thermal stability of highly ordered hafnium oxide (HfO2) nanotube arrays prepared through an electrochemical anodization method in the presence of ammonium fluoride is investigated in a temperature range of room temperature to 900 degrees C in flowing argon atmosphere. The formation of the HfO2 nanotube arrays was monitored by current density transient characteristics during anodization of hafnium metal foil. Morphologies of the as-grown and post-annealed HfO2 nanotube arrays were analyzed by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Although monoclinic HfO2 is thermally stable up to 2000 K in bulk, the morphology of HfO2 nanotube arrays degraded at 900 degrees C. A detailed X-ray photoelectron spectroscopy (XPS) study revealed that the thermal treatment significantly impacted the composition and the chemical environment of the core elements (Hf and O), as well as F content coming from the electrolyte. Possible reasons for the degradation of the nanotube at high temperature were discussed based on XPS study and possible future improvements have also been suggested. Moreover, dielectric measurements were carried out on both the as-grown amorphous film and 500 degrees C post-annealed crystalline film. This study will help us to understand the temperature impact on the morphology of nanotube arrays, which is important to its further applications at elevated temperatures. Published by Elsevier B.V. C1 [Qiu, Xiaofeng; Paranthaman, M. Parans] Oak Ridge Natl Lab, Mat Chem Grp, Div Chem Sci, Oak Ridge, TN 37831 USA. [Howe, Jane Y.; Meyer, Harry M., III] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Tuncer, Enis] Oak Ridge Natl Lab, Div Fus Energy, Oak Ridge, TN 37831 USA. RP Paranthaman, MP (reprint author), Oak Ridge Natl Lab, Mat Chem Grp, Div Chem Sci, Bldg 4500 S,MS 6100,1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM paranthamanm@ornl.gov RI Howe, Jane/G-2890-2011; Paranthaman, Mariappan/N-3866-2015 OI Tuncer, Enis/0000-0002-9324-4324; Paranthaman, Mariappan/0000-0003-3009-8531 FU U.S. Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division; Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy; U.S. Department of Energy-Office of Electricity Delivery and Energy Reliability [DE-AC05-00OR22725]; ORISE FX The nanotube synthesis work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division. The TEM and XPS characterization work of this research was conducted at ORNL's SHaRE User Facility, which is sponsored by the Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy. One of us (ET) was supported by the U.S. Department of Energy-Office of Electricity Delivery and Energy Reliability, Superconductivity Program for Electric Power Systems under contract DE-AC05-00OR22725 with Oak Ridge National Laboratory, managed and operated by UT-Battelle, LLC. Dr X Qiu acknowledges the support of the ORISE postdoctoral fellowship. NR 46 TC 8 Z9 10 U1 0 U2 24 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0169-4332 EI 1873-5584 J9 APPL SURF SCI JI Appl. Surf. Sci. PD FEB 15 PY 2011 VL 257 IS 9 BP 4075 EP 4081 DI 10.1016/j.apsusc.2010.11.178 PG 7 WC Chemistry, Physical; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Chemistry; Materials Science; Physics GA 709RR UT WOS:000286459600045 ER PT J AU Buchko, GW Phan, I Myler, PJ Terwilliger, TC Kim, CY AF Buchko, Garry W. Phan, Isabelle Myler, Peter J. Terwilliger, Thomas C. Kim, Chang-Yub TI Inaugural structure from the DUF3349 superfamily of proteins, Mycobacterium tuberculosis Rv0543c SO ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS LA English DT Article DE Tuberculosis; Circular dichroism; Structural genomics; Protein dynamics ID SITE-SPECIFIC RECOMBINATION; N-15 NMR RELAXATION; CHEMICAL-SHIFT; CIRCULAR-DICHROISM; DNA; DYNAMICS; DOMAIN; SPECTROSCOPY; RESIDUES; SYNAPSE AB The first structure for a member of the DUF3349 (PF11829) family of proteins. Rv0543c from Mycobacterium tuberculosis, has been determined using NMR-based methods and some of its biophysical properties characterized. Rv0543c is a 100 residue, 11.3 kDa protein that both size exclusion chromatography and NMR spectroscopy show to be a monomer in solution. The structure of the protein consists of a bundle of five a-helices, alpha 1 (M1 - Y16), alpha 2 (P21 - C33), alpha 3 (537- G52), alpha 4 (G58 - H65) and alpha 5 (S72 - G87), held together by a largely conserved group of hydrophobic amino acid side chains. Heteronuclear steady-state {(1)H}-(15)N NOE, T(1), and T(2) values are similar through-out the sequence indicating that the backbones of the five helices are in a single motional regime. The thermal stability of Rv0543c, characterized by circular dichroism spectroscopy, indicates that Rv0543c irreversibly unfolds upon heating with an estimated melting temperature of 62.5 degrees C. While the biological function of Rv0543c is still unknown, the presence of DUF3349 proteins predominately in Mycobacterium and Rhodococcus bacterial species suggests that Rv0543 may have a biological function unique to these bacteria, and consequently, may prove to be an attractive drug target to combat tuberculosis. (C) 2010 Elsevier Inc. All rights reserved. C1 [Buchko, Garry W.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. [Buchko, Garry W.] Pacific NW Natl Lab, Seattle Struct Genom Ctr Infect Dis, Richland, WA 99352 USA. [Phan, Isabelle; Myler, Peter J.] Seattle Biomed Res Inst, Seattle, WA 98109 USA. [Phan, Isabelle; Myler, Peter J.] Seattle Struct Genom Ctr Infect Dis, Seattle, WA 98109 USA. [Myler, Peter J.] Univ Washington, Dept Med Educ & Biomed Informat, Seattle, WA 98195 USA. [Myler, Peter J.] Univ Washington, Dept Global Hlth, Seattle, WA 98195 USA. [Terwilliger, Thomas C.; Kim, Chang-Yub] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Buchko, GW (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. EM garry.buchko@pnl.gov; cykim@lanl.gov RI Terwilliger, Thomas/K-4109-2012; Buchko, Garry/G-6173-2015; OI Terwilliger, Thomas/0000-0001-6384-0320; Buchko, Garry/0000-0002-3639-1061; Myler, Peter/0000-0002-0056-0513; Kim, Chang-Yub/0000-0001-9353-5909 FU National Institute of Allergy and Infectious Diseases [HHSN272200700057C]; U.S. Department of Energy's Office of Biological and Environmental Research at Pacific Northwest National Laboratory (PNNL) FX The structure of Rv0543c was a community request made to the Seattle Structural Genomics Center for Infectious Disease (SSGCID) and was given the internal identification code MytuD.17712.a. The research was funded by the National Institute of Allergy and Infectious Diseases under Federal Contract No. HHSN272200700057C and performed primarily at the W.R. Wiley Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by U.S. Department of Energy's Office of Biological and Environmental Research program located at Pacific Northwest National Laboratory (PNNL). Battelle operates PNNL for the U.S. Department of Energy. NR 40 TC 2 Z9 3 U1 0 U2 1 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0003-9861 J9 ARCH BIOCHEM BIOPHYS JI Arch. Biochem. Biophys. PD FEB 15 PY 2011 VL 506 IS 2 BP 150 EP 156 DI 10.1016/j.abb.2010.12.001 PG 7 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA 716IF UT WOS:000286961600005 PM 21144816 ER PT J AU Dick-Perez, M Zhang, YA Hayes, J Salazar, A Zabotina, OA Hong, M AF Dick-Perez, Marilu Zhang, Yuan Hayes, Jennifer Salazar, Andre Zabotina, Olga A. Hong, Mei TI Structure and Interactions of Plant Cell-Wall Polysaccharides by Two- and Three-Dimensional Magic-Angle-Spinning Solid-State NMR SO BIOCHEMISTRY LA English DT Article ID NUCLEAR-MAGNETIC-RESONANCE; CULTURED SYCAMORE CELLS; PRICKLY PEAR FRUITS; ARABIDOPSIS-THALIANA; MACROMOLECULAR COMPONENTS; PECTIC POLYSACCHARIDES; CHEMICAL-SHIFT; CELLULOSE; XYLOGLUCAN; SPECTROSCOPY AB The polysaccharide-rich cell walls (CWs) of plants perform essential functions such as maintaining tensile strength and allowing plant growth. Using two- and three-dimensional magic-angle-spinning (MAS) solid-state NMR and uniformly (13)C-labeled Arabidopsis thaliana, we have assigned the resonances of the major polysaccharides in the intact and insoluble primary CW and determined the intermolecular contacts and dynamics of cellulose, hemicelluloses, and pectins. Cellulose microfibrils showed extensive interactions with pectins, while the main hemicellulose, xyloglucan, exhibited few cellulose cross-peaks, suggesting limited entrapment in the microfibrils rather than extensive surface coating. Site-resolved (13)C T(1) and (1)H T(1p) relaxation times indicate that the entrapped xyloglucan has motional properties that are intermediate between the rigid cellulose and the dynamic pectins. Xyloglucan absence in a triple knockout mutant caused the polysaccharides to undergo much faster motions than in the wild-type CW. These results suggest that load bearing in plant CWs is accomplished by a single network of all three types of polysaccharides instead of a cellulose xyloglucan network, thus revising the existing paradigm of CW structure. The extensive pectin-cellulose interaction suggests a central role for pectins in maintaining the structure and function of plant-CWs. This study demonstrates the power of multidimensional MAS NMR for molecular level investigation of the structure and dynamics of complex and energy-rich plant materials. C1 [Salazar, Andre; Zabotina, Olga A.] Iowa State Univ, Dept Biochem Biophys & Mol Biol, Ames, IA 50011 USA. [Dick-Perez, Marilu; Zhang, Yuan; Hayes, Jennifer; Hong, Mei] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. [Dick-Perez, Marilu; Zhang, Yuan; Hayes, Jennifer; Hong, Mei] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Zabotina, OA (reprint author), Iowa State Univ, Dept Biochem Biophys & Mol Biol, Ames, IA 50011 USA. EM zabotina@iastate.edu; mhong@iastate.edu FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [AL-90-360-001]; Iowa State University Foundation FX This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Award AL-90-360-001. Initial experiments were funded by the Iowa State University Foundation. NR 41 TC 110 Z9 112 U1 11 U2 80 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0006-2960 J9 BIOCHEMISTRY-US JI Biochemistry PD FEB 15 PY 2011 VL 50 IS 6 BP 989 EP 1000 DI 10.1021/bi101795q PG 12 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 717MB UT WOS:000287049500009 PM 21204530 ER PT J AU Savitz, JB Nugent, AC Bogers, W Roiser, JP Bain, EE Neumeister, A Zarate, CA Manji, HK Cannon, DM Marrett, S Henn, F Charney, DS Drevets, WC AF Savitz, Jonathan B. Nugent, Allison C. Bogers, Wendy Roiser, Jonathan P. Bain, Earle E. Neumeister, Alexander Zarate, Carlos A., Jr. Manji, Husseini K. Cannon, Dara M. Marrett, Sean Henn, Fritz Charney, Dennis S. Drevets, Wayne C. TI Habenula Volume in Bipolar Disorder and Major Depressive Disorder: A High-Resolution Magnetic Resonance Imaging Study SO BIOLOGICAL PSYCHIATRY LA English DT Article DE Bipolar disorder; habenula; high resolution; lithium; magnetic resonance imaging; major depressive disorder ID VENTRAL TEGMENTAL AREA; DORSAL RAPHE NUCLEUS; LATERAL HABENULA; TRYPTOPHAN DEPLETION; LITHIUM TREATMENT; COMPLEX; DOPAMINE; SEROTONIN; RESPONSES; INCREASE AB Background: Increased activity of the habenula has been implicated in the etiology of major depressive disorder (MDD), in which reductions in habenula volume are present after death. We conducted the first magnetic resonance imaging analysis of habenula volume in MDD and bipolar disorder (BD). Methods: High-resolution images (resolution approximately.4mm(3)) were acquired with a 3T scanner, and a pulse sequence was optimized for tissue contrast resolution. The habenula was manually segmented by one rater blind to diagnosis. Seventy-four healthy control subjects (HC) were compared with both medicated (lithium/divalproex, n = 15) and unmedicated, depressed BD (n = 22) patients; unmedicated, depressed MDD patients (n = 28); and unmedicated MDD patients in remission (n = 32). Results: The unmedicated BD patients displayed significantly smaller absolute (p < .01) and normalized (p < .05) habenula volumes than the HC subjects. In post hoc assessments analyzing men and women separately, the currently-depressed women with MDD had smaller absolute (p < .05) habenula volumes than the HC women. None of the other psychiatric groups differed significantly from the HC group. Conclusions: We provide further evidence for the involvement of the habenula in affective illness but suggest that a reduction in volume might be more pronounced in unmedicated, depressed BD subjects and female currently depressed MDD subjects. The habenula plays major roles in the long-term modification of monoamine transmission and behavioral responses to stress and in the suppression of dopamine cell activity after the absence of an expected reward. A reduction in habenula volume might thus have functional consequences that contribute to the risk for developing affective disease. C1 [Savitz, Jonathan B.; Drevets, Wayne C.] Univ Oklahoma, Laureate Inst Brain Res, Coll Med, Tulsa, OK 74136 USA. [Savitz, Jonathan B.; Drevets, Wayne C.] Univ Oklahoma, Dept Psychiat, Coll Med, Tulsa, OK 74136 USA. [Savitz, Jonathan B.; Nugent, Allison C.; Bogers, Wendy; Drevets, Wayne C.] NIMH, Mood & Anxiety Disorders Program, NIH, Bethesda, MD 20892 USA. [Marrett, Sean] NIMH, Lab Brain & Cognit, NIH, Bethesda, MD 20892 USA. [Roiser, Jonathan P.] UCL, Inst Cognit Neurosci, London, England. [Bain, Earle E.] Abbott Labs, Deerfield, IL USA. [Neumeister, Alexander; Charney, Dennis S.] Mt Sinai Sch Med, New York, NY USA. [Henn, Fritz] Brookhaven Natl Lab, Upton, NY 11973 USA. [Manji, Husseini K.] Johnson & Johnson Pharmaceut Res & Dev, Titusville, NJ USA. [Cannon, Dara M.] Natl Univ Ireland, Div Psychiat, Galway, Ireland. RP Savitz, JB (reprint author), Univ Oklahoma, Laureate Inst Brain Res, Coll Med, 6655 S Yale Ave, Tulsa, OK 74136 USA. EM jonathansavitz@hotmail.com RI Savitz, Jonathan/C-3088-2009; Roiser, Jonathan/A-1791-2010; Cannon, Dara/C-1323-2009; OI Savitz, Jonathan/0000-0001-8143-182X; Cannon, Dara/0000-0001-7378-3411; Marrett, Sean/0000-0001-8179-6511; Nugent, Allison/0000-0003-2569-2480 FU National Institutes of Health FX This study was funded by the intramural research program at the National Institutes of Health. We would like to thank Ghedem Solomon and Niara Wright for administrative support. Dr. Bain is currently an employee of Abbott Laboratories. Dr. Manji is currently an employee of Johnson and Johnson. In 2006 and 2007, DC consulted for AstraZeneca, Bristol-Myers Squibb Company, Cyberonics, Neurogen, Neuroscience Education Institute, Novartis Pharmaceuticals Corporation, Orexin, and Unilever, UK Central Resources, Limited. Dr. Charney has a patent pending for the use of ketamine in the treatment of depression. Dr. Drevets consulted for Pfizer Pharmaceuticals. Dr. Zarate is listed as coinventor on a patent for the use of ketamine in major depression. Dr. Zarate has assigned his patent rights on ketamine to the US government. All other authors report no biomedical financial interests or potential conflicts of interest. NR 28 TC 57 Z9 59 U1 0 U2 9 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0006-3223 J9 BIOL PSYCHIAT JI Biol. Psychiatry PD FEB 15 PY 2011 VL 69 IS 4 BP 336 EP 343 DI 10.1016/j.biopsych.2010.09.027 PG 8 WC Neurosciences; Psychiatry SC Neurosciences & Neurology; Psychiatry GA 718JV UT WOS:000287118300007 PM 21094939 ER PT J AU Wang, LM Lu, DL Wang, J Du, D Zou, ZX Wang, H Smith, JN Timchalk, C Liu, FQ Lin, YH AF Wang, Limin Lu, Donglai Wang, Jun Du, Dan Zou, Zhexiang Wang, Hua Smith, Jordan N. Timchalk, Charles Liu, Fengquan Lin, Yuehe TI A novel immunochromatographic electrochemical biosensor for highly sensitive and selective detection of trichloropyridinol, a biomarker of exposure to chlorpyrifos SO BIOSENSORS & BIOELECTRONICS LA English DT Article DE Immunochromatographic electrochemical biosensor; Biomarker; Organophosphorus insecticides; Trichloropyridinol; Competitive immunoreaction ID IMMUNOSORBENT-ASSAY ELISA; LIQUID-CHROMATOGRAPHY; RAT SALIVA; PESTICIDES; METABOLITES; PHARMACOKINETICS; QUANTIFICATION; IMMUNOSENSORS; IMMUNOASSAY; DEGRADATION AB We present a novel portable immunochromatographic electrochemical biosensor (IEB) for simple, rapid, and sensitive biomonitoring of trichloropyridinol (TCP), a metabolite biomarker of exposure to organophosphorus insecticides. Our new approach takes the advantage of immunochromatographic test strip for a rapid competitive immunoreaction and a disposable screen-printed carbon electrode for a rapid and sensitive electrochemical analysis of captured HRP labeling. Several key experimental parameters (e.g. immunoreaction time, the amount of HRP labeled TCP, concentration of the substrate for electrochemical measurements, and the blocking agents for the nitrocellulose membrane) were optimized to achieve a high sensitivity, selectivity and stability. Under optimal conditions, the IEB has demonstrated a wide linear range (0.1-100 ng/ml) with a detection limit as low as 0.1 ng/ml TCP. Furthermore, the IEB has been successfully applied for biomonitoring of TCP in the rat plasma samples with in vivo exposure to organophosphorus insecticides like Chlorpyrifos-oxon (CPF-oxon). The IEB thus opens up new pathways for designing a simple, rapid, clinically accurate, and quantitative tool for TCP detection, as well as holds a great promise for in-field screening of metabolite biomarkers, e.g., TCP, for humans exposed to organophosphorus insecticides. (C) 2010 Elsevier B.V. All rights reserved. C1 [Wang, Limin; Liu, Fengquan] Nanjing Agr Univ, Coll Plant Protect, Dept Plant Pathol, Minist Agr,Key Lab Monitoring & Management Crop D, Nanjing 210095, Peoples R China. [Wang, Limin; Lu, Donglai; Wang, Jun; Du, Dan; Zou, Zhexiang; Wang, Hua; Smith, Jordan N.; Timchalk, Charles; Lin, Yuehe] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Liu, FQ (reprint author), Nanjing Agr Univ, Coll Plant Protect, Dept Plant Pathol, Minist Agr,Key Lab Monitoring & Management Crop D, Nanjing 210095, Peoples R China. EM fqliu20011@sina.com; yuehe.lin@pnl.gov RI Lin, Yuehe/D-9762-2011; Du, Dan (Annie)/G-3821-2012 OI Lin, Yuehe/0000-0003-3791-7587; FU Centers for Disease Control/National Institute for Occupational Safety and Health [R01 OH008173-01]; National institutes of Health through the National Institute of Neurological Disorders and Stroke [U01 NS058161-01]; Key Project in the National Science & technology Pillar Program [2009BADB9B03]; Department of Energy's Office of Biological and Environmental Research located at PNNL; DOE by Battelle [DE-AC05-76L01830]; China Scholarship Council; PNNL FX This work was conducted at Pacific Northwest National Laboratory (PNNL) and supported partially by Grant R01 OH008173-01 from the Centers for Disease Control/National Institute for Occupational Safety and Health, and Grant Number U01 NS058161-01 from the National institutes of Health CounterACT Program through the National Institute of Neurological Disorders and Stroke. This work was also supported partially by Key Project in the National Science & technology Pillar Program (2009BADB9B03). The contents of this publication are solely the responsibility of the authors and do not necessarily represent the official views of the federal government. The characterization work was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research located at PNNL. PNNL is operated for DOE by Battelle under Contract DE-AC05-76L01830. LW. would like to acknowledge the fellowship from the China Scholarship Council and the fellowship from PNNL. NR 31 TC 41 Z9 41 U1 5 U2 46 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 FEB 15 PY 2011 VL 26 IS 6 BP 2835 EP 2840 DI 10.1016/j.bios.2010.11.008 PG 6 WC Biophysics; Biotechnology & Applied Microbiology; Chemistry, Analytical; Electrochemistry; Nanoscience & Nanotechnology SC Biophysics; Biotechnology & Applied Microbiology; Chemistry; Electrochemistry; Science & Technology - Other Topics GA 720JT UT WOS:000287277700004 PM 21195597 ER PT J AU Mitra, S Rupek, P Richter, DC Urich, T Gilbert, JA Meyer, F Wilke, A Huson, DH AF Mitra, Suparna Rupek, Paul Richter, Daniel C. Urich, Tim Gilbert, Jack A. Meyer, Folker Wilke, Andreas Huson, Daniel H. TI Functional analysis of metagenomes and metatranscriptomes using SEED and KEGG SO BMC BIOINFORMATICS LA English DT Article; Proceedings Paper CT 9th Asia Pacific Bioinformatics Conference (APBC) CY JAN 11-14, 2011 CL Incheon, SOUTH KOREA ID GENOMES; SYSTEM; GENES AB Background: Metagenomics is the study of microbial organisms using sequencing applied directly to environmental samples. Technological advances in next-generation sequencing methods are fueling a rapid increase in the number and scope of metagenome projects. While metagenomics provides information on the gene content, metatranscriptomics aims at understanding gene expression patterns in microbial communities. The initial computational analysis of a metagenome or metatranscriptome addresses three questions: (1) Who is out there? (2) What are they doing? and (3) How do different datasets compare? There is a need for new computational tools to answer these questions. In 2007, the program MEGAN (MEtaGenome ANalyzer) was released, as a standalone interactive tool for analyzing the taxonomic content of a single metagenome dataset. The program has subsequently been extended to support comparative analyses of multiple datasets. Results: The focus of this paper is to report on new features of MEGAN that allow the functional analysis of multiple metagenomes (and metatranscriptomes) based on the SEED hierarchy and KEGG pathways. We have compared our results with the MG-RAST service for different datasets. Conclusions: The MEGAN program now allows the interactive analysis and comparison of the taxonomical and functional content of multiple datasets. As a stand-alone tool, MEGAN provides an alternative to web portals for scientists that have concerns about uploading their unpublished data to a website. C1 [Mitra, Suparna; Rupek, Paul; Richter, Daniel C.; Huson, Daniel H.] Univ Tubingen, Ctr Bioinformat ZBIT, D-72076 Tubingen, Germany. [Richter, Daniel C.] Eurofins Medigenomix GmbH, D-85560 Ebersberg, Germany. [Urich, Tim] Univ Vienna, Dept Genet Ecol, Vienna Ecol Ctr, A-1090 Vienna, Austria. [Urich, Tim] Univ Bergen, Ctr Geobiol, N-5007 Bergen, Norway. [Gilbert, Jack A.] Univ Chicago, Dept Ecol & Evolut, Chicago, IL 60637 USA. [Gilbert, Jack A.; Meyer, Folker; Wilke, Andreas] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA. RP Mitra, S (reprint author), Univ Tubingen, Ctr Bioinformat ZBIT, Sand 14, D-72076 Tubingen, Germany. EM mitra@informatik.uni-tuebingen.de; huson@informatik.uni-tuebingen.de RI Urich, Tim/C-2887-2013; Mitra, Suparna/D-2814-2014; Urich, Tim/J-8241-2016; OI Mitra, Suparna/0000-0002-9378-1496; Meyer, Folker/0000-0003-1112-2284 NR 18 TC 42 Z9 45 U1 4 U2 65 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2105 J9 BMC BIOINFORMATICS JI BMC Bioinformatics PD FEB 15 PY 2011 VL 12 SU 1 AR S21 DI 10.1186/1471-2105-12-S1-S21 PG 8 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Mathematical & Computational Biology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Mathematical & Computational Biology GA 759DN UT WOS:000290221000022 PM 21342551 ER PT J AU Kumar, VS Ferry, JG Maranas, CD AF Kumar, Vinay Satish Ferry, James G. Maranas, Costas D. TI Metabolic reconstruction of the archaeon methanogen Methanosarcina Acetivorans SO BMC SYSTEMS BIOLOGY LA English DT Article ID ESCHERICHIA-COLI; GENOME; OPTIMIZATION; C2A; PYRROLYSINE; EVOLUTION; FRAMEWORK; OPTKNOCK; NETWORKS; GENES AB Background: Methanogens are ancient organisms that are key players in the carbon cycle accounting for about one billion tones of biological methane produced annually. Methanosarcina acetivorans, with a genome size of similar to 5.7 mb, is the largest sequenced archaeon methanogen and unique amongst the methanogens in its biochemical characteristics. By following a systematic workflow we reconstruct a genome-scale metabolic model for M. acetivorans. This process relies on previously developed computational tools developed in our group to correct growth prediction inconsistencies with in vivo data sets and rectify topological inconsistencies in the model. Results: The generated model iVS941 accounts for 941 genes, 705 reactions and 708 metabolites. The model achieves 93.3% prediction agreement with in vivo growth data across different substrates and multiple gene deletions. The model also correctly recapitulates metabolic pathway usage patterns of M. acetivorans such as the indispensability of flux through methanogenesis for growth on acetate and methanol and the unique biochemical characteristics under growth on carbon monoxide. Conclusions: Based on the size of the genome-scale metabolic reconstruction and extent of validated predictions this model represents the most comprehensive up-to-date effort to catalogue methanogenic metabolism. The reconstructed model is available in spreadsheet and SBML formats to enable dissemination. C1 [Maranas, Costas D.] Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA. [Kumar, Vinay Satish] Joint BioEnergy Inst, Emeryville, CA 94608 USA. [Ferry, James G.] Penn State Univ, Dept Biochem & Mol Biol, University Pk, PA 16802 USA. RP Maranas, CD (reprint author), Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA. EM costas@psu.edu RI Maranas, Costas/A-4774-2011 OI Maranas, Costas/0000-0002-1508-1398 FU DOE [DE-FG03 01ER25499] FX The authors would like to thank Dr. Anthony Burgard and Dr Patrick Suthers for valuable discussions. The authors gratefully acknowledge funding from the DOE grant (DE-FG03 01ER25499). NR 55 TC 16 Z9 16 U1 1 U2 26 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1752-0509 J9 BMC SYST BIOL JI BMC Syst. Biol. PD FEB 15 PY 2011 VL 5 AR 28 DI 10.1186/1752-0509-5-28 PG 10 WC Mathematical & Computational Biology SC Mathematical & Computational Biology GA 780QZ UT WOS:000291874700001 ER PT J AU Kerkhof, LJ Williams, KH Long, PE McGuinness, LR AF Kerkhof, Lee J. Williams, Ken H. Long, Philip E. McGuinness, Lora R. TI Phase Preference by Active, Acetate-Utilizing Bacteria at the Rifle, CO Integrated Field Research Challenge Site SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID MICROBIAL ECOLOGY; URANIUM; SCALE; DNA; BIOREMEDIATION; BIOSTIMULATION; GROUNDWATER; BIOMARKERS AB Previous experiments at the Rifle, Colorado Integrated Field Research Challenge (IFRC) site demonstrated that field-scale addition of acetate to groundwater reduced the ambient soluble uranium concentration. In this report, sediment samples collected before and after acetate field addition were used to assess the active microbes via (13)C acetate stable isotope probing on 3 phases [coarse sand, fines (8-approximately 150 mu m), groundwater (0.2-8 mu m)] over a 24-day time frame. TRFLP results generally indicated a stronger signal in (13)C-DNA in the "fines" fraction compared to the sand and groundwater. Before the field-scale acetate addition, a Geobacter-like group primarily synthesized (13)C-DNA in the groundwater phase, an alpha Proteobacterium primarily grew on the fines/sands, and an Acinetobacter sp. and Decholoromonas-like OTU utilized much of the (13)C acetate in both groundwater and particle-associated phases. At the termination of the field-scale acetate addition, the Geobacter-like species was active on the solid phases rather than the groundwater, while the other bacterial groups had very reduced newly synthesized DNA signal. These findings will help to delineate the acetate utilization patterns of bacteria in the field and can lead to improved methods for stimulating distinct microbial populations in situ. C1 [Kerkhof, Lee J.; McGuinness, Lora R.] Rutgers State Univ, Inst Marine & Coastal Sci, New Brunswick, NJ 08901 USA. [Williams, Ken H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Long, Philip E.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Kerkhof, LJ (reprint author), Rutgers State Univ, Inst Marine & Coastal Sci, 71 Dudley Rd, New Brunswick, NJ 08901 USA. EM lkerkhof@rutgers.edu RI Long, Philip/F-5728-2013; Williams, Kenneth/O-5181-2014 OI Long, Philip/0000-0003-4152-5682; Williams, Kenneth/0000-0002-3568-1155 FU Biological and Environmental Research, Office of Science, U.S. Department of Energy; U.S. Department of Energy [DE-AC06-76RLO-1830] FX The authors thank Dick Dayvault, Mike Wilkins, and Aaron D. Peacock for their assistance in the field. The Rifle IFC is funded by the Environmental Remediation Sciences Program, Biological and Environmental Research, Office of Science, U.S. Department of Energy. The Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the U.S. Department of Energy (Contract Number DE-AC06-76RLO-1830). NR 21 TC 20 Z9 20 U1 1 U2 18 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 FEB 15 PY 2011 VL 45 IS 4 BP 1250 EP 1256 DI 10.1021/es102893r PG 7 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 718LI UT WOS:000287122400015 PM 21226528 ER PT J AU Chang-Graham, AL Profeta, LTM Johnson, TJ Yokelson, RJ Laskin, A Laskin, J AF Chang-Graham, Alexandra L. Profeta, Luisa T. M. Johnson, Timothy J. Yokelson, Robert J. Laskin, Alexander Laskin, Julia TI Case Study of Water-Soluble Metal Containing Organic Constituents of Biomass Burning Aerosol SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Article ID RESOLUTION MASS-SPECTROMETRY; MOLECULAR CHARACTERIZATION; CHEMICAL-COMPOSITION; LIQUID SAMPLER; BLACK CARBON; PARTICLES; COMBUSTION; DEPOSITION; EMISSIONS; STATE AB Natural and prescribed biomass fires are a major source of aerosols that may persist in the atmosphere for several weeks. Biomass burning aerosols (BBA) can be associated with long-range transport of water-soluble N-, S-, P-, and metal-containing species. In this study, BBA samples were collected using a particle-into-liquid sampler (PILS) from laboratory burns of vegetation collected on military bases in the southeastern and southwestern United States. The samples were then analyzed using high resolution electrospray ionization mass spectrometry (ESI/HR-MS) that enabled accurate mass measurements for hundreds of species with m/z values between 70 and 1000 and assignment of elemental formulas. Mg, Al, Ca, Cr, Mn, Fe, Ni, Cu, Zn, and Ba-containing organometallic species were identified. The results suggest that the biomass may have accumulated metal-containing species that were re-emitted during biomass burning. Further research into the sources, dispersion, and persistence of metal-containing aerosols, as well as their environmental effects, is needed. C1 [Laskin, Alexander] Pacific NW Natl Lab, Wiliam R Wiley Environm & Mol Sci Lab, Richland, WA 99352 USA. [Chang-Graham, Alexandra L.; Johnson, Timothy J.; Laskin, Julia] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA. [Profeta, Luisa T. M.] Pacific NW Natl Lab, Natl Secur Div, Richland, WA 99352 USA. RP Laskin, A (reprint author), Pacific NW Natl Lab, Wiliam R Wiley Environm & Mol Sci Lab, POB 999,MSIN K8-88, Richland, WA 99352 USA. EM Alexander.Laskin@pnl.gov; Julia.Laskin@pnl.gov RI Yokelson, Robert/C-9971-2011; Laskin, Alexander/I-2574-2012; Laskin, Julia/H-9974-2012 OI Yokelson, Robert/0000-0002-8415-6808; Laskin, Alexander/0000-0002-7836-8417; Laskin, Julia/0000-0002-4533-9644 FU U.S. Department of Energy (DOE), Office of Biological and Environmental Research; Chemical Sciences Division, Office of Basic Energy Sciences of the U.S. DOE; EMSL; DOE; Strategic Environmental Research and Development Program (SERDP) [SI-1649] FX ESI/HRMS analysis was performed at the W. R Wiley Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the U.S. Department of Energy (DOE), Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for the U.S. DOE. The authors acknowledge support from the Chemical Sciences Division, Office of Basic Energy Sciences of the U.S. DOE (J.L.); the intramural research and development program of EMSL (A.L); the DOE Science Undergraduate Laboratory Internship (SULI) program (A-C.-G.); the Strategic Environmental Research and Development Program (SERDP), project SI-1649 (L.T.M.P., T.J.J., and R.J.Y.). The authors gratefully acknowledge the staff at the USDA/USFS Fire Sciences Laboratory for technical help during sample collection. NR 33 TC 23 Z9 23 U1 4 U2 32 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0013-936X EI 1520-5851 J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD FEB 15 PY 2011 VL 45 IS 4 BP 1257 EP 1263 DI 10.1021/es103010j PG 7 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA 718LI UT WOS:000287122400016 PM 21218819 ER PT J AU DePaolo, DJ AF DePaolo, Donald J. TI Surface kinetic model for isotopic and trace element fractionation during precipitation of calcite from aqueous solutions SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID CRYSTAL-GROWTH; PLANKTONIC-FORAMINIFERA; DISSOLUTION KINETICS; CA ISOTOPES; TEMPERATURE; SEAWATER; RATIO; DIFFUSION; STRONTIUM; ARAGONITE AB A surface reaction kinetic model is developed for predicting Ca isotope fractionation and metal/Ca ratios of calcite as a function of rate of precipitation from aqueous solution. The model is based on the requirements for dynamic equilibrium; i.e. proximity to equilibrium conditions is determined by the ratio of the net precipitation rate (R-p) to the gross forward precipitation rate (R-f), for conditions where ionic transport to the growing crystal surface is not rate-limiting. The value of R-p has been experimentally measured under varying conditions, but the magnitude of R-f is not generally known, and may depend on several factors. It is posited that, for systems with no trace constituents that alter the surface chemistry, Rf can be estimated from the bulk far-from-equilibrium dissolution rate of calcite (R-b or k(b)), since at equilibrium R-f = R-b, and R-p = 0. Hence it can be inferred that R-f approximate to R-p + R-b. The dissolution rate of pure calcite is measureable and is known to be a function of temperature and pH. At given temperature and pH, equilibrium precipitation is approached when R-p (=R-f-R-b) << R-b. For precipitation rates high enough that R-p >> R-b, both isotopic and trace element partitioning are controlled by the kinetics of ion attachment to the mineral surface, which tend to favor more rapid incorporation of the light isotopes of Ca and discriminate weakly between trace metals and Ca. With varying precipitation rate, a transition region between equilibrium and kinetic control occurs near R-p approximate to R-b for Ca isotopic fractionation. According to this model, Ca isotopic data can be used to estimate Rf for calcite precipitation. Mechanistic models for calcite precipitation indicate that the molecular exchange rate is not constant at constant T and pH, but rather is dependent also on solution saturation state and hence R-p. Allowing R-b to vary as R-p(1/2), consistent with available precipitation rate studies, produces a better fit to some trace element and isotopic data than a model where R-b is constant. This model can account for most of the experimental data in the literature on the dependence of Ca-44/Ca-40 and metal/Ca fractionation in calcite as a function of precipitation rate and temperature, and also accounts for O-18/O-16 variations with some assumptions. The apparent temperature dependence of Ca isotope fractionation in calcite may stem from the dependence of R-b on temperature; there should be analogous pH dependence at pH < 6. The proposed model may be valuable for predicting the behavior of isotopic and trace element fractionation for a range of elements of interest in low-temperature aqueous geochemistry. The theory presented is based on measureable thermo-kinetic parameters in contrast to models that require hyper-fast diffusivity in near-surface layers of the solid. (C) 2010 Elsevier Ltd. All rights reserved. C1 [DePaolo, Donald J.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [DePaolo, Donald J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP DePaolo, DJ (reprint author), Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. EM depaolo@eps.berkeley.edu FU U.S. Department of Energy [DEAC02-05CH11231]; Center for Nanoscale Control of Geologic CO2, an Energy Frontier Research Center FX This manuscript has benefited from comments and discussion with James Watkins, Carl Steefel, Ian Bourg, Laura Nielsen, James De Yoreo, Patricia Dove, Matt Fantle, Rick Ryerson, and Bruce Watson. Comments by the reviewers, including R.I. Gabitov and the AE Edwin A. Schauble, were also beneficial. This work was supported by the Director, Office of Science, Office of Basic Energy Sciences, Chemical Sciences Geosciences and Bioscience Program of the U.S. Department of Energy under Contract No. DEAC02-05CH11231, partly through the Center for Nanoscale Control of Geologic CO2, an Energy Frontier Research Center. NR 67 TC 135 Z9 139 U1 10 U2 110 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 EI 1872-9533 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD FEB 15 PY 2011 VL 75 IS 4 BP 1039 EP 1056 DI 10.1016/j.gca.2010.11.020 PG 18 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 716HT UT WOS:000286960400006 ER PT J AU Hossain, A Bolotnikov, AE Camarda, GS Gul, R Kim, KH Cui, Y Yang, G Xu, L James, RB AF Hossain, A. Bolotnikov, A. E. Camarda, G. S. Gul, R. Kim, K. -H. Cui, Y. Yang, G. Xu, L. James, R. B. TI Effect of Te inclusions in CdZnTe crystals at different temperatures SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID SPATIAL RESPONSE; DETECTORS; RADIATION AB CdZnTe crystals often exhibit nonuniformities due to the presence of Te inclusions and dislocations. High concentrations of such defects in these crystals generally entail severe charge-trapping, a major problem in ensuring the device's satisfactory performance. In this study, we employed a high-intensity, high-spatial-resolution synchrotron x-ray beam as the ideal tool to generate charges by focusing it over the large Te inclusions, and then observing the carrier's response at room-and at low-temperatures. A high spatial 5-mu m resolution raster scan revealed the fine details of the presence of extended defects, like Te inclusions and dislocations in the CdZnTe crystals. A noticeable change was observed in the efficiency of electron charge collection at low temperature (1 degrees C), but it was hardly altered at room-temperature. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3549236] C1 [Hossain, A.; Bolotnikov, A. E.; Camarda, G. S.; Gul, R.; Kim, K. -H.; Cui, Y.; Yang, G.; Xu, L.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Xu, L.] NW Polytech Univ, Xian 710072, Shaanxi, Peoples R China. RP Hossain, A (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM hossain@bnl.gov RI Yang, Ge/G-1354-2011 FU U.S. Department of Energy, Office of Nonproliferation Research and Development [NA-22]; U.S. Department of Energy [DE-AC02-98CH1-886] FX This work was supported by U.S. Department of Energy, Office of Nonproliferation Research and Development, NA-22. The manuscript has been authored by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH1-886 with the U.S. Department of Energy. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges, a worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for the United States Government purposes. NR 9 TC 7 Z9 7 U1 2 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 FEB 15 PY 2011 VL 109 IS 4 AR 044504 DI 10.1063/1.3549236 PG 4 WC Physics, Applied SC Physics GA 727OQ UT WOS:000287811100053 ER PT J AU Ishimaru, M Zhang, YW Wang, XM Chu, WK Weber, WJ AF Ishimaru, Manabu Zhang, Yanwen Wang, Xuemei Chu, Wei-Kan Weber, William J. TI Experimental evidence of homonuclear bonds in amorphous GaN SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID MOLECULAR-DYNAMICS; ION-IMPLANTATION; SILICON; DIFFRACTION; RECRYSTALLIZATION; AMORPHIZATION; TEMPERATURE; IRRADIATION; DEPOSITION; LIQUID AB Although GaN is an important semiconductor material, its amorphous structures are not well understood. Currently, theoretical atomistic structural models which contradict each other, are proposed for the chemical short-range order of amorphous GaN: one characterizes amorphous GaN networks as highly chemically ordered, consisting of heteronuclear Ga-N atomic bonds; and the other predicts the existence of a large number of homonuclear bonds within the first coordination shell. In the present study, we examine amorphous structures of GaN via radial distribution functions obtained by electron diffraction techniques. The experimental results demonstrate that amorphous GaN networks consist of heterononuclear Ga-N bonds, as well as homonuclear Ga-Ga and N-N bonds. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3552987] C1 [Ishimaru, Manabu] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan. [Zhang, Yanwen; Weber, William J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Zhang, Yanwen; Weber, William J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Wang, Xuemei; Chu, Wei-Kan] Univ Houston, Dept Phys, Houston, TX 77204 USA. [Wang, Xuemei; Chu, Wei-Kan] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA. RP Ishimaru, M (reprint author), Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan. EM ishimaru@sanken.osaka-u.ac.jp RI Weber, William/A-4177-2008 OI Weber, William/0000-0002-9017-7365 FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division; State of Texas through the Texas Center for Superconductivity at University of Houston FX We would like to thank Professor Hirotsu for his establishment of a precise quantitative analytical technique of electron diffraction intensities for radial distribution function analysis. TEM observations were performed at the Comprehensive Analysis Center, ISIR, Osaka University. This research was partially supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. The irradiation was supported by the State of Texas through the Texas Center for Superconductivity at University of Houston. NR 36 TC 7 Z9 7 U1 1 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 FEB 15 PY 2011 VL 109 IS 4 AR 043512 DI 10.1063/1.3552987 PG 4 WC Physics, Applied SC Physics GA 727OQ UT WOS:000287811100024 ER PT J AU Lee, SY Cho, IH Kim, JM Yan, HF Conley, R Liu, CA Macrander, AT Maser, J Stephenson, GB Kang, HC Noh, DY AF Lee, Su Yong Cho, In Hwa Kim, Jae Myung Yan, Hanfei Conley, Ray Liu, Chian Macrander, Albert T. Maser, Joerg Stephenson, G. Brian Kang, Hyon Chol Noh, Do Young TI Hard x-ray nano patterning using a sectioned multilayer SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID BEAM LITHOGRAPHY; ZONE PLATES; FABRICATION; GRATINGS AB We report a hard x-ray patterning capable of drawing lines with a width below100 nm using x-rays at 0.165 nm. A specially prepared mask based on multilayer growth technology was used as an x-ray mask effectively. The x-ray Talbot effect in near field was investigated and utilized in the patterning. Since multilayers with a few nanometer layer spacing are readily available, the proposed hard x-ray nano patterning, free of the limit imposed by the Rayleigh criterion in optical range, can potentially be an ultimate optical lithography technique. (c) 2011 American Institute of Physics. [doi:10.1063/1.3552589] C1 [Kang, Hyon Chol] Chosun Univ, Dept Adv Mat Engn, Kwangju 501759, South Korea. [Kang, Hyon Chol] Chosun Univ, Ctr Mould Technol Adv Mat & Parts, Kwangju 501759, South Korea. [Lee, Su Yong; Cho, In Hwa; Kim, Jae Myung; Noh, Do Young] Gwangju Inst Sci & Technol, Sch Mat Sci & Engn & Photon & Appl Phys, Kwangju 500712, South Korea. [Yan, Hanfei; Conley, Ray] Brookhaven Natl Lab, Upton, NY 11973 USA. [Liu, Chian; Macrander, Albert T.; Maser, Joerg] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Stephenson, G. Brian] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Stephenson, G. Brian] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Kang, HC (reprint author), Chosun Univ, Dept Adv Mat Engn, Kwangju 501759, South Korea. EM kanghc@chosun.ac.kr; dynoh@gist.ac.kr RI Conley, Ray/C-2622-2013; Maser, Jorg/K-6817-2013; Yan, Hanfei/F-7993-2011 OI Yan, Hanfei/0000-0001-6824-0367 FU National Research Foundation of Korea (NRF) [NCRC(R15-2008-006-01000-0), WCU(R31-2008-000-10-026-0), 2010-0023604]; GIST; DE-AC-02-06CH11357 [DE-AC-02-06CH11357]; Department of Energy [DE-AC-02-06CH11357, DE-AC-02-98CH10886]; Brookhaven Science Associates [DE-AC-02-98CH10886] FX We thank S.N. Kim and Chan Kim for their help in the experimental setup. This research was supported by the National Research Foundation of Korea (NRF) through the NCRC(R15-2008-006-01000-0), WCU(R31-2008-000-10-026-0), general user program (No. 2010-0023604), and GIST Top Brand grants. The work is also supported under Contract No. DE-AC-02-06CH11357 between UChicago Argonne, LLC and the Department of Energy, and DE-AC-02-98CH10886 between Brookhaven Science Associates and the Department of Energy. NR 26 TC 3 Z9 3 U1 0 U2 10 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 FEB 15 PY 2011 VL 109 IS 4 AR 044307 DI 10.1063/1.3552589 PG 5 WC Physics, Applied SC Physics GA 727OQ UT WOS:000287811100044 ER PT J AU Mahurin, SM Lee, JS Wang, X Dai, S AF Mahurin, Shannon M. Lee, Je Seung Wang, Xiqing Dai, Sheng TI Ammonia-activated mesoporous carbon membranes for gas separations SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE Mesoporous carbon; Membrane; Gas Separations ID OXIDATION REACTIONS; PRECURSORS AB Porous carbon membranes, which generally show improved chemical and thermal stability compared to polymer membranes, have been used in gas separations for many years. In this work, we show that the post-synthesis ammonia treatment of porous carbon at elevated temperature can improve the permeance and selectivity of these membranes for the separation of carbon dioxide and hydrocarbons from permanent gases. Hierarchically structured porous carbon membranes were exposed to ammonia gas at temperatures ranging from 850 degrees C to 950 degrees C for up to 10 min and the N(2), CO(2), and C(3)H(6) permeances were. measured for these different membranes. Higher treatment temperatures and longer exposure times resulted in higher gas permeance values. In addition, CO(2)/N(2) and C(3)H(6)/N(2) selectivities increased by a factor of 2 as the treatment temperature and time increased up to a temperature and time of 900 degrees C, 10 min. Higher temperatures showed increased permeance but decreased selectivity indicating excess pore activation. Nitrogen adsorption measurements show that the ammonia treatment increased the porosity of the membrane while elemental analysis revealed the presence of nitrogen-containing surface functionalities in the treated carbon membranes. Thus, ammonia treatment at high temperature provides a controlled method to introduce both added microporosity and surface functionality to enhance gas separations performance of porous carbon membranes. (C) 2010 Elsevier B.V. All rights reserved. C1 [Mahurin, Shannon M.; Lee, Je Seung; Wang, Xiqing] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Mahurin, SM (reprint author), Oak Ridge Natl Lab, Div Chem Sci, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM mahurinsm@ornl.gov; dais@ornl.gov RI Wang, Xiqing/E-3062-2010; Dai, Sheng/K-8411-2015 OI Wang, Xiqing/0000-0002-1843-008X; Dai, Sheng/0000-0002-8046-3931 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy; Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy FX This work was fully sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. Scanning electron microscopy was performed at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy. NR 28 TC 36 Z9 38 U1 5 U2 57 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 FEB 15 PY 2011 VL 368 IS 1-2 BP 41 EP 47 DI 10.1016/j.memsci.2010.11.007 PG 7 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 712YI UT WOS:000286701800005 ER PT J AU Hsiung, L Fluss, M Tumey, S Kuntz, J El-Dasher, B Wall, M Choi, B Kimura, A Willaime, F Serruys, Y AF Hsiung, L. Fluss, M. Tumey, S. Kuntz, J. El-Dasher, B. Wall, M. Choi, B. Kimura, A. Willaime, F. Serruys, Y. TI HRTEM study of oxide nanoparticles in K3-ODS ferritic steel developed for radiation tolerance SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article ID EXPERIMENTAL VALIDATION; STRUCTURAL-MATERIALS; ION IRRADIATION; FUSION POWER; DISPERSION; PARTICLES; BEHAVIOR; POWDER; DEFORMATION; ALLOYS AB Crystal and interfacial structures of oxide nanoparticles and radiation damage in 16Cr-4.5Al-0.3Ti-2W-0.37 Y(2)O(3) ODS ferritic steel have been examined using high-resolution transmission electron microscopy (HRTEM) techniques. Oxide nanoparticles with a complex-oxide core and an amorphous shell were frequently observed. The crystal structure of complex-oxide core is identified to be mainly monoclinic Y(4)Al(2)O(9) (YAM) oxide compound. Orientation relationships between the oxide and the matrix are found to be dependent on the particle size. Large particles (>20 nm) tend to be incoherent and have a spherical shape, whereas small particles (<10 nm) tend to be coherent or semi-coherent and have a faceted interface. The observations of partially amorphous nanoparticles and multiple crystalline domains formed within a nanoparticle lead us to propose a three-stage mechanism to rationalize the formation of oxide nanoparticles containing core/shell structures in as-fabricated ODS steels. Effects of nanoparticle size and density on cavity formation induced by (Fe(8+) + He(+)) dual-beam irradiation are briefly addressed. (C) 2010 Elsevier B.V. All rights reserved. C1 [Hsiung, L.; Fluss, M.; Tumey, S.; Kuntz, J.; El-Dasher, B.; Wall, M.; Choi, B.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. [Kimura, A.] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan. [Willaime, F.; Serruys, Y.] CEA, Serv Rech Met Phys, F-91191 Gif Sur Yvette, France. RP Hsiung, L (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. EM hsiung1@llnl.gov FU US Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; LLNL [09-SI-003] FX This work was performed under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. Work at LLNL was funded by the Laboratory Directed Research and Development Program at LLNL under project tracking code 09-SI-003. The authors gratefully acknowledge R. Krueger for the design of sample holder for the irradiation experiment, S. Miro and J.-P. Gallien for beam management, H. Martin for his technical support for the irradiation experiment, and N. Teslich and R. Gross for their works on TEM sample preparations. NR 22 TC 38 Z9 38 U1 2 U2 39 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 J9 J NUCL MATER JI J. Nucl. Mater. PD FEB 15 PY 2011 VL 409 IS 2 BP 72 EP 79 DI 10.1016/j.jnucmat.2010.09.014 PG 8 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 734CT UT WOS:000288311500003 ER PT J AU Liu, WN Sun, X Khaleel, MA AF Liu, W. N. Sun, X. Khaleel, M. A. TI Study of geometric stability and structural integrity of self-healing glass seal system used in solid oxide fuel cells SO JOURNAL OF POWER SOURCES LA English DT Article DE Self healing glass; SOFC; Geometry stability; Structure integrity; Creep; Modeling ID COMPRESSIVE MICA SEALS; SOFC APPLICATIONS; COMPOSITE SEALS; CREEP AB A self-healing glass seal has the potential to restore its mechanical properties upon being reheated to the solid oxide fuel cell (SOFC) stack operating temperature Such a self-healing feature is desirable for achieving high seal reliability during thermal cycling Self-healing glass is also characterized by its low mechanical stiffness and high creep rate at SOFC operating temperatures Therefore the geometric stability and structural integrity of the glass seal system are critical to its successful application in SOFCs This paper describes studies of the geometric stability and structural integrity of the self-healing glass seal system and the influence of various interfacial conditions during the operating and cooling-down processes using finite element analyses For this purpose the test cell used in the leakage tests for compliant glass seals conducted at Pacific Northwest National Laboratory (PNNL) was taken as the initial modeling geometry The effect of the ceramic stopper on the geometric stability of the self-healing glass sealants was studied first Two interfacial conditions of the ceramic stopper and glass seals le bonded (strong) or unbonded (weak) were considered Then the influences of interfacial strengths at various interfaces e stopper/glass stopper/PEN as well as stopper/IC plate on the geometric stability and reliability of glass during the operating and cooling processes were examined (C) 2010 Elsevier B V All rights reserved C1 [Liu, W. N.; Sun, X.; Khaleel, M. A.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Liu, WN (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. OI khaleel, mohammad/0000-0001-7048-0749 FU U S Department of Energy [DE-AC05-76RL01830]; U S Department of Energy s National Energy Technology Laboratory FX Pacific Northwest National Laboratory is operated for the U S Department of Energy by Battelle under Contract DE-AC05-76RL01830 The work summarized in this report was funded as part of the Solid-State Energy Conversion Alliance Core Technology Program by the U S Department of Energy s National Energy Technology Laboratory We would like to acknowledge the technical direction from Travis Shultz and Briggs White Technical discussions with Drs Matt Chou and Jeff Stevenson are also gratefully acknowledged NR 25 TC 21 Z9 21 U1 0 U2 25 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 1750 EP 1761 DI 10.1016/j.jpowsour.2010.10.002 PG 12 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400011 ER PT J AU Vijayakumar, M Kerisit, S Rosso, KM Burton, SD Sears, JA Yang, ZG Graff, GL Liu, J Hu, JZ AF Vijayakumar, M. Kerisit, Sebastien Rosso, Kevin M. Burton, Sarah D. Sears, Jesse A. Yang, Zhenguo Graff, Gordon L. Liu, Jun Hu, Jianzhi TI Lithium diffusion in Li4Ti5O12 at high temperatures SO JOURNAL OF POWER SOURCES LA English DT Article DE Lithium battery; Anode materials; 6Li NMR; Molecular dynamics ID SOLID-STATE NMR; STRAIN INSERTION MATERIAL; ANATASE TIO2 NANOTUBES; ANODE MATERIAL; ION BATTERIES; GEL METHOD; ELECTROCHEMICAL PROPERTIES; SPINEL LI4+XTI5O12; CHEMICAL-SHIFTS; SINGLE-CRYSTAL AB Synthesis of the spinel lithium titanate Li4Ti5O12 by an alkoxide-free sol-gel method is described This method yields highly pure and crystalline LiO4Ti5O12 samples at relatively low temperature (850 Ci and via short thermal treatment (2 h) Li-6 magic angle spinning nuclear magnetic resonance (MAS NMR) measurements on these samples were carried out at high magnetic field (21 1T) and over a wide temperature range (295-680 K) The temperature dependence of the chemical shifts and integral inten ities of the three Li-6 resonances demonstrates the migration of lithium ions from the tetrahedral 8a to the octahedral 16c sites and the progressive phase transition from a spinel to a defective NaCl-type structure This defective structure has an increased number of vac moles at the 8a site which facilitate lithium diffusion through 16c -> 8a -> 16c pathways hence providing an explanation for the reported increase in conductivity at high temperatures Molecular dynamics simulations of the spine, oxides Li4+xTi5O12 with 0 <= x <= 3 were also performed with a potential shell model in the temperature range 300-700K The simulations support the conclusions drawn from the NMR measurements and show a significant timescale separation between lithium diffusion through 8a and 16c sites and that out of the 16d sites (C) 2010 Elsevier B V All rights reserved C1 [Vijayakumar, M.; Kerisit, Sebastien; Rosso, Kevin M.; Burton, Sarah D.; Sears, Jesse A.; Yang, Zhenguo; Graff, Gordon L.; Liu, Jun; Hu, Jianzhi] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Hu, JZ (reprint author), Pacific NW Natl Lab, 3 135 Q Ave,MSIN K8 98, Richland, WA 99352 USA. RI Murugesan, Vijayakumar/C-6643-2011; Hu, Jian Zhi/F-7126-2012 OI Murugesan, Vijayakumar/0000-0001-6149-1702; FU Pacific Northwest National Laboratory (PNNL); U S Department of Energy (DOE); DOE s Office of Biological and Environmental Research (BER) at PNNL; Department of Energy [DE-AC05-76RL01830] FX This work is supported by the Laboratory-Directed Research and Development Program (LDRD) of the Pacific Northwest National Laboratory (PNNL) and by the U S Department of Energy (DOE) The NMR work was carried out at the Environmental and Molecular Sciences Laboratory a national scientific user facility sponsored by the DOE s Office of Biological and Environmental Research (BER) and located at PNNL PNNL is a multiprogram laboratory operated by Battelle Memorial Institute for the Department of Energy under Contract DE-AC05-76RL01830 NR 57 TC 31 Z9 32 U1 9 U2 90 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 EI 1873-2755 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 2211 EP 2220 DI 10.1016/j.jpowsour.2010.09.060 PG 10 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400070 ER PT J AU Russenbeek, J Gao, Y Zhong, Z Croft, M Jisrawi, N Ignatov, A Tsakalakos, T AF Russenbeek, Job Gao, Yan Zhong, Zhong Croft, Mark Jisrawi, Najeh Ignatov, Alexander Tsakalakos, Thomas TI In situ X-ray diffraction of prototype sodium metal halide cells Time and space electrochemical profiling SO JOURNAL OF POWER SOURCES LA English DT Article DE Sodium batteries; in situ X-ray diffraction ID BATTERY; NA6MNCL8 AB The feasibility of using energy dispersive X-ray diffraction to characterize full size battery cells is demonstrated by unprecedented in situ measurements of the electrochemical processes taking place inside high temperature sodium metal halide (Na/MCl(2) M Ni and/or Fe) cells during charge/discharge cycling Diffraction data provide phase information either via line scans across the 5 cm wide cells or via fixed location scans as a function of time The data confirm the propagation of a well-defined chemical reaction front as a function of charge/discharge time beginning at the ceramic separator and proceeding Inward Measurement of the temporal evolution of the phase abundances yields mechanistic understanding and reaction rates as a function of charge/discharge state In the case where M includes Fe the data also clearly show the appearance of an intermediate phase Na(6)FeCl(8) during charging thereby underscoring the power of this technique to reveal subtle mechanistic information A number of additional detailed electrochemical kinetic effects are also discussed This study shows that in situ high energy X-ray diffraction characterization of advanced battery cells in space and time is eminently feasible on a routine basis and has great potential to advance the understanding of buried chemical processes (C) 2010 Elsevier B V All rights reserved C1 [Russenbeek, Job; Gao, Yan] GE Global Res, Niskayuna, NY 12309 USA. [Zhong, Zhong; Croft, Mark] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. [Croft, Mark] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Jisrawi, Najeh] Univ Sharjah, Dept Appl Phys, Sharjah, U Arab Emirates. [Ignatov, Alexander; Tsakalakos, Thomas] Rutgers State Univ, Mat Sci & Engn Dept, Piscataway, NJ 08854 USA. RP Russenbeek, J (reprint author), GE Global Res, 1 Res Circle,CEB 109, Niskayuna, NY 12309 USA. NR 19 TC 27 Z9 27 U1 5 U2 30 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-7753 J9 J POWER SOURCES JI J. Power Sources PD FEB 15 PY 2011 VL 196 IS 4 SI SI BP 2332 EP 2339 DI 10.1016/j.jpowsour.2010.10.023 PG 8 WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science GA 702KO UT WOS:000285893400087 ER PT J AU Meinert, M Schmalhorst, J Wulfmeier, H Reiss, G Arenholz, E Graf, T Felser, C AF Meinert, Markus Schmalhorst, Jan Wulfmeier, Hendrik Reiss, Guenter Arenholz, Elke Graf, Tanja Felser, Claudia TI Electronic structure of fully epitaxial Co2TiSn thin films SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC CIRCULAR-DICHROISM; HEUSLER ALLOYS; AB-INITIO; SPECTROSCOPY; COBALT AB We report on the properties of thin films of the full Heusler compound Co2TiSn prepared by dc magnetron co-sputtering. Fully epitaxial, stoichiometric films were obtained by deposition on MgO (001) substrates at substrate temperatures above 600 degrees C. The films are well ordered in the L2(1) structure, and the Curie temperature slightly exceeds the bulk value. They show a significant, isotropic magnetoresistance and the resistivity becomes strongly anomalous in the paramagnetic state. The films are weakly ferrimagnetic, with nearly 1 mu(B) on the Co atoms, and a small antiparallel Ti moment, in agreement with theoretical expectations. From comparison of x-ray absorption spectra on the Co L-3,L-2 edges, including circular and linear magnetic dichroism, with ab initio calculations of the x-ray absorption and circular dichroism spectra we infer that the electronic structure of Co2TiSn has essentially nonlocalized character. Spectral features that have not been explained in detail before are explained here in terms of the final-state band structure. C1 [Meinert, Markus; Schmalhorst, Jan; Wulfmeier, Hendrik; Reiss, Guenter] Univ Bielefeld, Dept Phys, D-33501 Bielefeld, Germany. [Arenholz, Elke] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Graf, Tanja; Felser, Claudia] Johannes Gutenberg Univ Mainz, Inst Inorgan Chem & Analyt Chem, D-55128 Mainz, Germany. RP Meinert, M (reprint author), Univ Bielefeld, Dept Phys, D-33501 Bielefeld, Germany. EM meinert@physik.uni-bielefeld.de RI Meinert, Markus/E-8794-2011; Schmalhorst, Jan/E-9951-2011; Graf, Tanja/G-4510-2011; Reiss, Gunter/A-3423-2010; Felser, Claudia/A-5779-2009 OI Meinert, Markus/0000-0002-7813-600X; Reiss, Gunter/0000-0002-0918-5940; Felser, Claudia/0000-0002-8200-2063 FU Deutsche Forschungsgemeinschaft (DFG); Bundesministerium fur Bildung und Forschung (BMBF); Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231] FX The authors gratefully acknowledge financial support by the Deutsche Forschungsgemeinschaft (DFG) and the Bundesministerium fur Bildung und Forschung (BMBF). They thank for the opportunity to work at BL 6.3.1 and BL 4.0.2 of the Advanced Light Source, Berkeley, California, USA, which is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. They further acknowledge the work of Professor Rehr and his group for developing and providing the FEFF9 code, as well as the work of Professor Ebert and his group for developing and providing the Munich SPRKKR package. NR 34 TC 12 Z9 12 U1 0 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 15 PY 2011 VL 83 IS 6 AR 064412 DI 10.1103/PhysRevB.83.064412 PG 10 WC Physics, Condensed Matter SC Physics GA 721OU UT WOS:000287365100005 ER PT J AU Liu, Y Wang, ZF Wang, J Ferrare, RA Newsom, RK Welton, EJ AF Liu, Yang Wang, Zifeng Wang, Jun Ferrare, Richard A. Newsom, Robert K. Welton, Ellsworth J. TI The effect of aerosol vertical profiles on satellite-estimated surface particle sulfate concentrations SO REMOTE SENSING OF ENVIRONMENT LA English DT Article DE MISR; Fractional AOD; SO4; GAM; MPLNET; ARM SGP Raman lidar ID MATTER COMPONENT CONCENTRATIONS; OPTICAL DEPTH; AIR-POLLUTION; UNITED-STATES; RAMAN LIDAR; SENSITIVITY; OCEAN AB The aerosol vertical distribution is an important factor in determining the relationship between satellite retrieved aerosol optical depth (AOD) and ground-level fine particle pollution concentrations. We evaluate how aerosol profiles measured by ground-based lidar and simulated by models can help improve the association between AOD retrieved by the Multi-angle Imaging Spectroradiometer (MISR) and fine particle sulfate (SO4) concentrations using matched data at two lidar sites. At the Goddard Space Flight Center (GSFC) site, both lidar and model aerosol profiles marginally improve the association between SO4 concentrations and MISR fractional AODs, as the correlation coefficient between cross-validation (CV) and observed SO4 concentrations changes from 0.87 for the no-scaling model to 0.88 for models scaled with aerosol vertical profiles. At the GSFC site, a large amount of urban aerosols resides in the well-mixed boundary layer so the column fractional AODs are already excellent indicators of ground-level particle pollution. In contrast, at the Atmospheric Radiation Measurement Program (ARM) site with relatively low aerosol loadings, scaling substantially improves model performance. The correlation coefficient between CV and observed SO4 concentrations is increased from 0.58 for the no-scaling model to 0.76 in the GEOS-Chem scaling model, and the model bias is reduced from 17% to 9%. In summary, despite the inaccuracy due to the coarse horizontal resolution and the challenges of simulating turbulent mixing in the boundary layer, GEOS-Chem simulated aerosol profiles can still improve methods for estimating surface aerosol (504) mass from satellite-based AODs, particularly in rural areas where aerosols in the free troposphere and any long-range transport of aerosols can significantly contribute to the column AOD. (C) 2010 Elsevier Inc. All rights reserved. C1 [Liu, Yang] Emory Univ, Rollins Sch Publ Hlth, Dept Environm Hlth, Atlanta, GA 30322 USA. [Wang, Zifeng] Chinese Acad Sci, Inst Remote Sensing Applicat, Beijing, Peoples R China. [Wang, Jun] Univ Nebraska, Dept Earth & Atmospher Sci, Lincoln, NE USA. [Ferrare, Richard A.] NASA, Langley Res Ctr, Hampton, VA 23665 USA. [Newsom, Robert K.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Welton, Ellsworth J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. RP Liu, Y (reprint author), Emory Univ, Rollins Sch Publ Hlth, Dept Environm Hlth, 1518 Clifton Rd NE, Atlanta, GA 30322 USA. EM yang.liu@emory.edu RI Welton, Ellsworth/A-8362-2012; Chem, GEOS/C-5595-2014; Wang, Jun/A-2977-2008 OI Wang, Jun/0000-0002-7334-0490 FU MISR science team at the Jet Propulsion Laboratory [1363692]; NASA FX The work of Yang Liu and Zifeng Wang is supported by the MISR science team at the Jet Propulsion Laboratory led by Dr. David Diner (subcontract # 1363692). The authors wish to thank Drs. Jeffrey Reid, John Barnes, and Larry Belcher for their technical support on MPLNET lidar data. Jun Wang acknowledges the support of NASA Earth Science New Investigator Program and the computational support provided by the Holland Computing Center of the University of Nebraska. NR 25 TC 13 Z9 14 U1 4 U2 17 PU ELSEVIER SCIENCE INC PI NEW YORK PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA SN 0034-4257 J9 REMOTE SENS ENVIRON JI Remote Sens. Environ. PD FEB 15 PY 2011 VL 115 IS 2 BP 508 EP 513 DI 10.1016/j.rse.2010.09.019 PG 6 WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic Technology SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science & Photographic Technology GA 714BS UT WOS:000286782500021 ER PT J AU Adolf, DB Chambers, RS Elisberg, B Stavig, M Ruff, M AF Adolf, Douglas B. Chambers, Robert S. Elisberg, Brenton Stavig, Mark Ruff, Mary TI Predicting Cohesive Failure in Thermosets SO JOURNAL OF APPLIED POLYMER SCIENCE LA English DT Article DE thermosets; failure; modeling ID NONLINEAR VISCOELASTIC APPROACH; THERMODYNAMICALLY CONSISTENT; GLASSY-POLYMERS; MODEL; CURE AB Modeling of stresses in epoxies used as adhesives, coatings, or encapsulants in electronic packaging can guide an engineer to more robust designs and material selections. However, stresses by themselves allow evaluation of qualitative trends only. Quantitative assessment of design margins requires some knowledge of when stresses become excessive and failure is imminent. In this study, stresses were predicted accurately in a wide variety of tests, and the state of stress and strain was examined at the point of experimental failure to extract a single scalar metric that design engineers could use to correlate with the observed initiation of cracking. A value of the maximum principal strain of roughly 40% satisfactorily matched data encompassing different geometries, modes of deformation, and test temperature and is apparently linked to a physical mechanism of failure arising from "run-away'' nonlinear viscoelasticity. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119:2143-2152, 2011 C1 [Adolf, Douglas B.; Stavig, Mark] Sandia Natl Labs, Ctr Mat Sci & Engn, Albuquerque, NM 87185 USA. [Chambers, Robert S.; Elisberg, Brenton] Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA. [Ruff, Mary] New Mexico Inst Min & Technol, Dept Mat & Met Engn, Socorro, NM 87801 USA. RP Adolf, DB (reprint author), Sandia Natl Labs, Ctr Mat Sci & Engn, POB 5800, Albuquerque, NM 87185 USA. EM dbadolf@sandia.gov FU United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX The authors would like to acknowledge the assistance provided by New Mexico Tech undergraduate students, Annie Hohmann, Timothy Schutt, and Isabel McCoy, who prepared samples and ran tests providing data for determining the temperature dependence of the three point bend and dog bone geometries. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 10 TC 4 Z9 5 U1 0 U2 21 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0021-8995 EI 1097-4628 J9 J APPL POLYM SCI JI J. Appl. Polym. Sci. PD FEB 15 PY 2011 VL 119 IS 4 BP 2143 EP 2152 DI 10.1002/app.32938 PG 10 WC Polymer Science SC Polymer Science GA 680LN UT WOS:000284233500031 ER PT J AU Hardin, RA Liu, Y Long, C Aleksandrov, A Blokland, W AF Hardin, Robert A. Liu, Yun Long, Cary Aleksandrov, Alexander Blokland, Willem TI Active beam position stabilization of pulsed lasers for long-distance ion profile diagnostics at the Spallation Neutron Source (SNS) SO OPTICS EXPRESS LA English DT Article ID POINTING STABILIZATION; SYSTEM AB A high peak-power Q-switched laser has been used to monitor the ion beam profiles in the superconducting linac at the Spallation Neutron Source (SNS). The laser beam suffers from position drift due to movement, vibration, or thermal effects on the optical components in the 250-meter long laser beam transport line. We have designed, bench-tested, and implemented a beam position stabilization system by using an Ethernet CMOS camera, computer image processing and analysis, and a piezo-driven mirror platform. The system can respond at frequencies up to 30 Hz with a high position detection accuracy. With the beam stabilization system, we have achieved a laser beam pointing stability within a range of 2 mu rad (horizontal) to 4 mu rad (vertical), corresponding to beam drifts of only 0.5 mm x 1 mm at the furthest measurement station located 250 meters away from the light source. (C) 2011 Optical Society of America C1 [Hardin, Robert A.; Liu, Yun; Long, Cary; Aleksandrov, Alexander; Blokland, Willem] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Hardin, RA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM hardinra@ornl.gov FU U.S. Department of Energy [DE-AC05-00OR22725] FX The authors would like to thank George Link for his help in these experiments. ORNL/SNS is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. NR 13 TC 8 Z9 8 U1 0 U2 4 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD FEB 14 PY 2011 VL 19 IS 4 BP 2874 EP 2885 DI 10.1364/OE.19.002874 PG 12 WC Optics SC Optics GA 741JM UT WOS:000288860000005 PM 21369109 ER PT J AU Jiang, LN Whitten, WB Pau, S AF Jiang, Linan Whitten, William B. Pau, Stanley TI A planar ion trapping microdevice with integrated waveguides for optical detection SO OPTICS EXPRESS LA English DT Article ID MASS-SPECTROMETRY; CHARGED-PARTICLES AB A planar ion trap with an integrated waveguide was fabricated and characterized. The microdevice, consisting of a 1 mm-diameter one-hole ring trap and multi-mode optical waveguides, was made on a glass wafer using microfabrication techniques. The experimental results demonstrate that the microdevice can trap 1.5 mu m- to 150 mu m-diameter charged particles in air under an alternating electric field with the amplitude and frequency varying from 100 V to 750 V, and 100 Hz to 700 Hz, respectively. The on-chip waveguide is capable of detecting the presence of a particle in the trap, and the particle secular motion frequency was found to depend on the input alternating signal amplitude and frequency. (C) 2011 Optical Society of America C1 [Jiang, Linan; Pau, Stanley] Univ Arizona, Coll Opt Sci, Tucson, AZ 85718 USA. [Jiang, Linan] Univ Arizona, Dept Aerosp & Mech Engn, Tucson, AZ 85718 USA. [Whitten, William B.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Jiang, LN (reprint author), Univ Arizona, Coll Opt Sci, Tucson, AZ 85718 USA. EM ljiang@optics.arizona.edu FU DARPA Microsystems Technology Office; DARPA FX The authors thank Mr. Dale Drew of the Department of Aerospace and Mechanical Engineering, University of Arizona, for assistance with the experimental apparatus. We acknowledge Dr. Hui Zhang and Prof. Jesse Zhu at the University of Western Ontario who provided samples of paint powders. WBW would like to acknowledge support from the DARPA Microsystems Technology Office. This work was supported by the DARPA YFA Program. NR 20 TC 5 Z9 5 U1 0 U2 7 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD FEB 14 PY 2011 VL 19 IS 4 BP 3037 EP 3043 DI 10.1364/OE.19.003037 PG 7 WC Optics SC Optics GA 741JM UT WOS:000288860000023 PM 21369127 ER PT J AU Liao, SL Gopalsami, N Venugopal, A Heifetz, A Raptis, AC AF Liao, Shaolin Gopalsami, N. Venugopal, A. Heifetz, A. Raptis, A. C. TI An efficient iterative algorithm for computation of scattering from dielectric objects SO OPTICS EXPRESS LA English DT Article ID ELECTROMAGNETIC-WAVE PROPAGATION; INTEGRAL-EQUATIONS; LENS ANTENNA; W-BAND; OPTICS AB We have developed an efficient iterative algorithm for electromagnetic scattering of arbitrary but relatively smooth dielectric objects. The algorithm iteratively adapts the equivalent surface currents until the electromagnetic fields inside and outside the dielectric objects match the boundary conditions. Theoretical convergence is analyzed for two examples that solve scattering of plane waves incident upon air/dielectric slabs of semi-infinite and finite thicknesses. We applied the iterative algorithm for simulation of sinusoidally-perturbed dielectric slab on one side and the method converged for such unsmooth surfaces. We next simulated the shift in radiation pattern of a 6-inch dielectric lens for different offsets of the feed antenna on the focal plane. The result is compared to that of the Geometrical Optics (GO). (C) 2011 Optical Society of America C1 [Liao, Shaolin; Gopalsami, N.; Venugopal, A.; Heifetz, A.; Raptis, A. C.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Liao, SL (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM sliao@anl.gov NR 16 TC 3 Z9 3 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD FEB 14 PY 2011 VL 19 IS 4 BP 3304 EP 3315 DI 10.1364/OE.19.003304 PG 12 WC Optics SC Optics GA 741JM UT WOS:000288860000049 PM 21369153 ER PT J AU Zhang, Y Gonzalez, RM Zangar, RC AF Zhang, Yi Gonzalez, Rachel M. Zangar, Richard C. TI Protein secretion in human mammary epithelial cells following HER1 receptor activation: influence of HER2 and HER3 expression SO BMC CANCER LA English DT Article ID GROWTH-FACTOR RECEPTOR; SANDWICH ELISA MICROARRAYS; BREAST-CANCER PATIENTS; MATRIX METALLOPROTEINASES; PROGNOSTIC MARKERS; ENDOTHELIAL-CELLS; ERBB RECEPTORS; OVARIAN-CANCER; FACTOR FAMILY; PATHWAY AB Background: Protein secretion by mammary cells results in autocrine and paracrine signaling that defines cell growth, migration and the extracellular environment. Even so, we have a limited understanding of the cellular processes that regulate protein secretion. Methods: In this study, we utilize human epithelial mammary cell (HMEC) lines that were engineered to express different levels of HER1, HER2 and HER3. Using an ELISA microarray platform, we evaluate the effects of epidermal growth factor family receptor (HER) expression on protein secretion in the HMEC lines upon initiation of HER1 receptor activation. The secreted proteins include three HER1 ligands, interleukins 1a and 18, RANTES, vascularendothelial and platelet- derived growth factors, matrix metalloproteases 1, 2 and 9, and the extracellular portion of the HER1 and HER2 proteins. In addition, we investigate whether MAPK/Erk and PI3K/Akt signaling regulate protein secretion in these cell lines and if so, whether the involvement of HER2 or HER3 receptor alters their response to MAPK/Erk and PI3K/Akt signal pathway inhibition in terms of protein secretion. Results: Differential expression of HER2 and HER3 receptors alters the secretion of a variety of growth factors, cytokines, and proteases. Some alterations in protein secretion are still observed when MAPK/Erk or PI3K/Akt signaling is inhibited. Conclusion: This study suggests that HER overexpression orchestrates broad changes in the tumor microenvironment by altering the secretion of a diverse variety of biologically active proteins. C1 [Zhang, Yi; Gonzalez, Rachel M.; Zangar, Richard C.] Pacific NW Natl Lab, Richland, WA 99354 USA. [Zhang, Yi] Univ Tennessee, Ctr Hlth Sci, Dept Med, Memphis, TN 38163 USA. RP Zangar, RC (reprint author), Pacific NW Natl Lab, Richland, WA 99354 USA. EM richard.zangar@pnl.gov FU National Cancer Institute [CA117378] FX The authors would like to thank Dr. H. Steven Wiley for helpful discussions on the experimental design and interpretation of the research reported here. This research was supported by a grant (CA117378) from the National Cancer Institute. NR 70 TC 5 Z9 6 U1 0 U2 2 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2407 J9 BMC CANCER JI BMC Cancer PD FEB 14 PY 2011 VL 11 AR 69 DI 10.1186/1471-2407-11-69 PG 20 WC Oncology SC Oncology GA 731PU UT WOS:000288122500001 PM 21320340 ER PT J AU Delgado, A Lane, K Martin, A AF Delgado, Antonio Lane, Kenneth Martin, Adam TI A light scalar in low-scale technicolor SO PHYSICS LETTERS B LA English DT Article DE Technicolor; Scalar; LHC ID ELECTROWEAK PARAMETERS; HIGGS; HYPERCOLOR; SYMMETRIES; DILATON; PHYSICS; MODEL; LHC AB In addition to the narrow spin-one resonances rho(T), omega(T) and a(T) occurring in low-scale technicolor, there will be relatively narrow scalars in the mass range 200 to 600-700 GeV. We study the lightest isoscalar state, sigma(T). In several important respects it is like a heavy Higgs boson with a small vev. It may be discoverable with high luminosity at the LHC where it is produced via weak boson fusion and likely has substantial W+W- and Z(0)Z(0) decay modes. (C) 2011 Elsevier B.V. All rights reserved. C1 [Delgado, Antonio] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. [Lane, Kenneth] Boston Univ, Dept Phys, Boston, MA 02215 USA. [Lane, Kenneth] Univ Savoie, LAPTH, CNRS, UMR 5108, F-74941 Annecy Le Vieux, France. [Martin, Adam] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Delgado, A (reprint author), Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. EM antonio.delgado@nd.edu; lane@physics.bu.edu; aomartin@fnal.gov FU U.S. National Science Foundation [PHY-0905283-ARRA]; U.S. Department of Energy [DE-FG02-91ER40676, DE-AC02-07CH11359]; Fermilab; LLC; CERN Theory Group FX This work has been supported in part by the U.S. National Science Foundation under Grant PHY-0905283-ARRA (A.D.), the U.S. Department of Energy under Grant DE-FG02-91ER40676 (K.L.), and Fermilab operated by Fermi Research Alliance, LLC, U.S. Department of Energy Contract DE-AC02-07CH11359 (A.M.). A.D.'s research was also supported in part by the CERN Theory Group and he thanks CERN for its hospitality. K.L.'s research was supported in part by Laboratoire d'Annecy-le-Vieux de Physique Theorique (LAPTH) and the CERN Theory Group and he thanks LAPTH and CERN for their hospitality. We gratefully acknowledge helpful discussions with Eric Pilon, Maria Spiropulu, Brock Tweedie and Chris Vermilion. NR 52 TC 7 Z9 7 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD FEB 14 PY 2011 VL 696 IS 5 BP 482 EP 486 DI 10.1016/j.physletb.2011.01.009 PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 728VV UT WOS:000287903500010 ER PT J AU McDermott, JE Archuleta, M Thrall, BD Adkins, JN Waters, KM AF McDermott, Jason E. Archuleta, Michelle Thrall, Brian D. Adkins, Joshua N. Waters, Katrina M. TI Controlling the Response: Predictive Modeling of a Highly Central, Pathogen-Targeted Core Response Module in Macrophage Activation SO PLOS ONE LA English DT Article ID NF-KAPPA-B; GENE-EXPRESSION; NETWORKS; CHOLESTEROL; REGRESSION; VIRULENCE; VARIANCE; BIOLOGY; CELLS AB We have investigated macrophage activation using computational analyses of a compendium of transcriptomic data covering responses to agonists of the TLR pathway, Salmonella infection, and manufactured amorphous silica nanoparticle exposure. We inferred regulatory relationship networks using this compendium and discovered that genes with high betweenness centrality, so-called bottlenecks, code for proteins targeted by pathogens. Furthermore, combining a novel set of bioinformatics tools, topological analysis with analysis of differentially expressed genes under the different stimuli, we identified a conserved core response module that is differentially expressed in response to all studied conditions. This module occupies a highly central position in the inferred network and is also enriched in genes preferentially targeted by pathogens. The module includes cytokines, interferon induced genes such as Ifit1 and 2, effectors of inflammation, Cox1 and Oas1 and OasI2, and transcription factors including AP1, Egr1 and 2 and Mafb. Predictive modeling using a reverse-engineering approach reveals dynamic differences between the responses to each stimulus and predicts the regulatory influences directing this module. We speculate that this module may be an early checkpoint for progression to apoptosis and/or inflammation during macrophage activation. C1 [McDermott, Jason E.; Thrall, Brian D.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. RP McDermott, JE (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. EM Jason.McDermott@pnl.gov RI Adkins, Joshua/B-9881-2013 OI McDermott, Jason/0000-0003-2961-2572; Adkins, Joshua/0000-0003-0399-0700 FU National Institute of Allergy and Infectious Diseases NIH/DHHS [Y1-AI-8401, NIH/NIEHS R01ES016212]; Environmental Biomarkers Initiative and Biological Systems Initiative; Battelle Memorial Institute [DE-AC05-76RLO-1830] FX This work was funded, in part, by the National Institute of Allergy and Infectious Diseases NIH/DHHS through Interagency agreement Y1-AI-8401, NIH/NIEHS R01ES016212, and the Environmental Biomarkers Initiative and Biological Systems Initiative through the Laboratory Directed Research and Development program at Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle Memorial Institute under contract DE-AC05-76RLO-1830. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 45 TC 20 Z9 20 U1 0 U2 5 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 FEB 14 PY 2011 VL 6 IS 2 AR e14673 DI 10.1371/journal.pone.0014673 PG 11 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 721PR UT WOS:000287367600004 PM 21339814 ER PT J AU Georgii, R Brandl, G Arend, N Haussler, W Tischendorf, A Pfleiderer, C Boni, P Lal, J AF Georgii, R. Brandl, G. Arend, N. Haeussler, W. Tischendorf, A. Pfleiderer, C. Boeni, P. Lal, J. TI Turn-key module for neutron scattering with sub-micro-eV resolution SO APPLIED PHYSICS LETTERS LA English DT Article ID RESONANCE SPIN-ECHO; SPECTROMETER AB We report the development of a compact turn-key module that boosts the resolution in quasielastic neutron scattering by several orders of magnitude down to the low sub-micro-eV range. It is based on a pair of neutron resonance spin flippers that generate a well defined temporal intensity modulation, also known as Modulation of IntEnsity by Zero Effort (MIEZE). The module may be used under versatile conditions, in particular, in applied magnetic fields and for depolarizing and incoherently scattering samples. We demonstrate the power of MIEZE in studies of the helimagnetic order in MnSi under applied magnetic fields. (C) 2011 American Institute of Physics. [doi:10.1063/1.3556558] C1 [Georgii, R.; Brandl, G.; Haeussler, W.] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz, D-85748 Garching, Germany. [Georgii, R.; Brandl, G.; Arend, N.; Haeussler, W.; Tischendorf, A.; Pfleiderer, C.; Boeni, P.] Tech Univ Munich, Phys Dept E21, D-85748 Garching, Germany. [Arend, N.] Oak Ridge Natl Lab, Forschungszentrum Julich GmbH, JCNS 1 & ICS 1, Oak Ridge, TN 37831 USA. [Lal, J.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Georgii, R (reprint author), Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz, D-85748 Garching, Germany. EM robert.georgii@frm2.tum.de RI Pfleiderer, Christian/P-3575-2014 FU team of FRM II; German Science Foundation (DFG) [TRR80]; Oak Ridge National Laboratory; European Commission [CP-CSA INFRA-2008-1.1.1, 226507-NMI3] FX We gratefully acknowledge support by R. Schwikowski, A. Mantwill, M. Wipp, and the team of FRM II. We wish to thank R. Gahler, L. Robertson, I. Anderson, and W. Petry for helpful discussions and support. Financial support through the German Science Foundation (DFG) under TRR80, the Oak Ridge National Laboratory, and the European Commission under the 7th Framework Program, Contract no. CP-CSA INFRA-2008-1.1.1 Number 226507-NMI3 is acknowledged. NR 16 TC 9 Z9 9 U1 1 U2 10 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 14 PY 2011 VL 98 IS 7 AR 073505 DI 10.1063/1.3556558 PG 3 WC Physics, Applied SC Physics GA 723LE UT WOS:000287507200088 ER PT J AU Goiran, M Millot, M Poumirol, JM Gherasoiu, I Walukiewicz, W Leotin, J AF Goiran, Michel Millot, Marius Poumirol, Jean-Marie Gherasoiu, Iulian Walukiewicz, Wladek Leotin, Jean TI Electron cyclotron effective mass in indium nitride (vol 96, 052117, 2010) SO APPLIED PHYSICS LETTERS LA English DT Correction C1 [Goiran, Michel; Millot, Marius; Poumirol, Jean-Marie; Leotin, Jean] Univ Toulouse, Lab Natl Champs Magnet Intenses LNCMI, CNRS UPR 3228, F-31400 Toulouse, France. [Gherasoiu, Iulian] RoseSt Labs Energy, Phoenix, AZ 85034 USA. [Walukiewicz, Wladek] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Goiran, M (reprint author), Univ Toulouse, Lab Natl Champs Magnet Intenses LNCMI, CNRS UPR 3228, 143 Ave Rangueil, F-31400 Toulouse, France. EM millot.marius@gmail.com NR 1 TC 0 Z9 0 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 14 PY 2011 VL 98 IS 7 AR 079903 DI 10.1063/1.3557021 PG 1 WC Physics, Applied SC Physics GA 723LE UT WOS:000287507200098 ER PT J AU Yan, JQ Jensen, B Dennis, KW McCallum, RW Lograsso, TA AF Yan, J. -Q. Jensen, B. Dennis, K. W. McCallum, R. W. Lograsso, T. A. TI Flux requirements for the growth of RFeAsO (R=rare earth) superconductors SO APPLIED PHYSICS LETTERS LA English DT Article ID DIFFUSIVITY; SOLUBILITY; OXYGEN; BISMUTH; INDIUM; SILVER; TIN AB Millimeter-sized LaFeAsO single crystals have been successfully grown out of NaAs flux starting with (LaAs+1/2Fe(2)O(3)):20NaAs. The factors which allow the growth of these crystals out of NaAs but not out of many other fluxes, such as FeAs, have been investigated. X-ray powder diffraction found that NaAs synthesized for the growth of RFeAsO superconductors has monoclinic LiAs structure. Thermal analysis confirmed that NaAs melts congruently at about 600 degrees C. The ability to extract RFeAsO crystals from this NaAs flux suggests that NaAs has a significant oxygen solubility, possibly due to the formation of the ternary compound NaAsO(2), and enough oxygen diffusivity to transport solute to the growth front. Oxygen solubility and diffusivity are two important factors in searching for an alternative environmentally benign flux for the growth of RFeAsO superconductors. (C) 2011 American Institute of Physics. [doi:10.1063/1.3555632] C1 [Yan, J. -Q.; Jensen, B.; Dennis, K. W.; McCallum, R. W.; Lograsso, T. A.] US DOE, Div Mat Sci & Engn, Ames Lab, Ames, IA 50011 USA. [McCallum, R. W.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA. RP Yan, JQ (reprint author), Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. EM jqyan@utk.edu FU U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division; U.S. Department of Energy (DOE) [DE-AC02-07CH11358] FX The authors would thank R. Gebhardt for his help in crystal growth. This research was supported by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division. Ames Laboratory is supported by the U.S. Department of Energy (DOE) under Contract No. DE-AC02-07CH11358. NR 23 TC 9 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 14 PY 2011 VL 98 IS 7 AR 072504 DI 10.1063/1.3555632 PG 3 WC Physics, Applied SC Physics GA 723LE UT WOS:000287507200040 ER PT J AU Li, MJ Wu, ZL Overbury, SH AF Li, Meijun Wu, Zili Overbury, S. H. TI CO oxidation on phosphate-supported Au catalysts: Effect of support reducibility on surface reactions SO JOURNAL OF CATALYSIS LA English DT Article DE Au catalyst; FePO(4); LaPO(4); CO adsorption; Catalytic CO oxidation; FTIR; Raman spectroscopy; Mechanism ID GAS SHIFT REACTION; CARBON-MONOXIDE; GOLD NANOPARTICLES; AU/CEO2 CATALYSTS; IRON PHOSPHATE; ADSORBED CO; OXYGEN; REDUCTION; TITANIA; AU/TIO2 AB Previous work has shown that Au supported on FePO(4) can be stable and active for CO oxidation and that oxygen from the FePO(4) can participate in the CO oxidation. In this paper, we have used gas transient DRIFTS-QMS, Raman, temperature-programmed reduction and CO oxidation activity measurements to compare adsorption and oxidation of CO on two comparably loaded Au catalysts supported on both a reducible phosphate support, FePO(4), and a non-reducible support, LaPO(4). H(2)-TPR confirms that the Au/FePO(4) catalyst is highly reducible and that the reduction is strongly promoted by the Au, while neither LaPO(4) nor Au/LaPO(4) are reducible up to 500 degrees C. The nature of Au species was determined by CO adsorption. For Au/FePO(4), cationic Au is present after oxidative treatment, and metallic Au dominates after reductive treatment. The majority of the cationic Au observed on the FePO(4) support undergoes in situ reduction to metallic Au during rt CO adsorption. For Au/LaPO(4), no cationic Au is observed, but metallic Au is present after both oxidative and reductive treatment. In addition, metallic Au is accompanied by anionic Au, not seen on Au/FePO(4), which accumulates during CO exposure, even after an oxidative pretreatment. Unexpectedly, CO interacts rapidly with Au/LaPO(4) to evolve CO(2) and form both adsorbed CO(2) and "carbonate-like" species, even though the LaPO(4) is non-reducible and Raman fails to find evidence for loss of structural oxygen. H(2) coevolves with CO(2) during CO-TPR of Au/LaPO(4) (but not for Au/FePO(4)) leading to the conclusion that surface hydroxyl is the source of oxygen during CO exposure to Au/LaPO(4). Anionic Au is associated with the vacancies remaining after reaction of hydroxyl with CO. (C) 2010 Elsevier Inc. All rights reserved. C1 [Li, Meijun; Wu, Zili; Overbury, S. H.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Overbury, SH (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM overburysh@ornl.gov RI Wu, Zili/F-5905-2012; Overbury, Steven/C-5108-2016 OI Wu, Zili/0000-0002-4468-3240; Overbury, Steven/0000-0002-5137-3961 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy; Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy; Oak Ridge Institute for Science and Education; Oak Ridge National Laboratory FX This research was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy. A portion of this research was performed using facilities at Oak Ridge National Laboratory's Center for Nanophase Materials Sciences, sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. Meijun Li was sponsored by an appointment to the Oak Ridge National Laboratory Postdoctoral Research Associates Program administered jointly by the Oak Ridge Institute for Science and Education and Oak Ridge National Laboratory. NR 44 TC 29 Z9 30 U1 11 U2 91 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9517 J9 J CATAL JI J. Catal. PD FEB 14 PY 2011 VL 278 IS 1 BP 133 EP 142 DI 10.1016/j.jcat.2010.11.019 PG 10 WC Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 724JK UT WOS:000287571700014 ER PT J AU Boates, B Hamel, S Schwegler, E Bonev, SA AF Boates, B. Hamel, S. Schwegler, E. Bonev, S. A. TI Structural and optical properties of liquid CO2 for pressures up to 1 TPa SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID EQUATION-OF-STATE; CARBON-DIOXIDE; CRYSTAL-STRUCTURE; HIGH-TEMPERATURE; DEUTERIUM; INTERIORS; HUGONIOT AB We report on the use of first-principles molecular dynamics calculations to examine properties of liquid carbon dioxide in the pressure-temperature range of 0-1 TPa and 200-100 000 K. The computed equations of state points are used to predict a series of shock Hugoniots with initial starting conditions that are relevant to existing and ongoing shock-wave experiments. A comparison with published measurements up to 70 GPa shows excellent agreement. We find that the liquid undergoes a gradual phase transition along the Hugoniot and have characterized this transition based on changes in bonding and structural properties as well as the conductivity and reflectivity of the fluid. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3549593] C1 [Boates, B.; Hamel, S.; Schwegler, E.; Bonev, S. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Boates, B.; Bonev, S. A.] Dalhousie Univ, Dept Phys, Halifax, NS B3H 3J5, Canada. RP Bonev, SA (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94550 USA. EM bonev@llnl.gov RI Schwegler, Eric/A-2436-2016 OI Schwegler, Eric/0000-0003-3635-7418 FU U.S. Department of Energy (DOE) at the University of California/LLNL [DE-AC52-07NA27344]; NSERC; Killam Trusts; Acenet FX This work was performed under the auspices of the U.S. Department of Energy (DOE) at the University of California/LLNL under Contract No. DE-AC52-07NA27344. B. B. and S. A. B. acknowledge support from NSERC, Killam Trusts, and Acenet. We thank Dr. Thomas Mattsson and Dr. Seth Root for useful discussions. NR 44 TC 18 Z9 18 U1 2 U2 16 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 14 PY 2011 VL 134 IS 6 AR 064504 DI 10.1063/1.3549593 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721BW UT WOS:000287327400049 PM 21322702 ER PT J AU Gutfreund, P Wolff, M Maccarini, M Gerth, S Ankner, JF Browning, J Halbert, CE Wacklin, H Zabel, H AF Gutfreund, Philipp Wolff, Max Maccarini, Marco Gerth, Stefan Ankner, John F. Browning, Jim Halbert, Candice E. Wacklin, Hanna Zabel, Hartmut TI Depletion at solid/liquid interfaces: Flowing hexadecane on functionalized surfaces SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID SELF-ASSEMBLED MONOLAYERS; THIN-FILM; X-RAY; SLIP; LIQUID; REFLECTION; BOUNDARY; WATER; ROUGHNESS; DYNAMICS AB We present a neutron reflectivity study on interfaces in contact with flowing hexadecane, which is known to exhibit surface slip on functionalized solid surfaces. The single crystalline silicon substrates were either chemically cleaned Si(100) or Si(100) coated by octadecyl-trichlorosilane (OTS), which resulted in different interfacial energies. The liquid was sheared in situ and changes in reflectivity profiles were compared to the static case. For the OTS surface, the temperature dependence was also recorded. For both types of interfaces, density depletion of the liquid at the interface was observed. In the case of the bare Si substrate, shear load altered the structure of the depletion layer, whereas for the OTS covered surface no effect of shear was observed. Possible links between the depletion layer and surface slip are discussed. The results show that, in contrast to water, for hexadecane the enhancement of the depletion layer with temperature and interfacial energy reduces the amount of slip. Thus a density depletion cannot be the origin of surface slip in this system. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3549895] C1 [Gutfreund, Philipp; Zabel, Hartmut] Ruhr Univ Bochum, Inst Festkorperphys, D-44780 Bochum, Germany. [Gutfreund, Philipp; Maccarini, Marco; Wacklin, Hanna] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France. [Wolff, Max] Uppsala Univ, Dept Phys & Astron, S-75121 Uppsala, Sweden. [Gerth, Stefan] Univ Erlangen Nurnberg, Lehrstuhl Kristallog & Strukturphys, D-91058 Erlangen, Germany. [Ankner, John F.; Browning, Jim; Halbert, Candice E.] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA. RP Gutfreund, P (reprint author), Ruhr Univ Bochum, Inst Festkorperphys, D-44780 Bochum, Germany. EM gutfreund@ill.eu; max.wolff@fysik.uu.se RI Maccarini, Marco/A-1894-2015; OI Maccarini, Marco/0000-0002-4555-3288; Ankner, John/0000-0002-6737-5718 FU BMBF [05K10PC1]; DFG [ZA161/18, 1164]; U.S. DOE [DE-AC05-00OR22725] FX We thank R. Campbell for the help with the experiment on FIGARO and we gratefully acknowledge financial support by the BMBF (05K10PC1) and the DFG Grant No. ZA161/18 within the priority program (SPP) 1164. The measurements at SNS were carried out by the U.S. DOE under Contract No. DE-AC05-00OR22725. NR 32 TC 11 Z9 11 U1 0 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 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 14 PY 2011 VL 134 IS 6 AR 064711 DI 10.1063/1.3549895 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721BW UT WOS:000287327400072 PM 21322725 ER PT J AU Hanson, DE AF Hanson, David E. TI The distributions of chain lengths in a crosslinked polyisoprene network SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID MONTE-CARLO SIMULATIONS; POLYMER NETWORKS; RELAXATION; ELASTICITY AB A fundament of classical rubber elasticity theory is the Gaussian chain approximation formula, P(n,r) for the probability distribution of end-to-end distances of a polymer chain composed of n beads. It is considered to provide a realistic distribution of end-to-end distances, r, provided that the length of the polymer chain is much greater than its average end-to-end distance. By considering the number of beads (n) to be the independent variable, we can use P(n, r) to construct the probability distributions of network chain lengths, for fixed r. Since the network crosslinks reduce the probability for the occurrence of longer chains, the formula must be modified by a correction factor that takes this effect into account. We find that, both the shape of the n-probability distribution, its height, and the position of the peak vary significantly with r. We provide a numerical procedure for constructing networks that respect these distributions. The algorithm was implemented in a three-dimensional, random polymer-and-node network model to construct polyisoprene networks at two common crosslink densities. Although the procedure does not constrain the density, we find that the networks constructed have densities very close to the measured bulk density. (C) 2011 American Institute of Physics. [doi:10.1063/1.3534909] C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Hanson, DE (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM deh@lanl.gov FU U.S. Department of Energy of Los Alamos National Laboratory [DE-AC52-06NA25396] FX This work was performed under the auspices of Los Alamos National Laboratory, which is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under Contract No. DE-AC52-06NA25396. NR 21 TC 6 Z9 6 U1 1 U2 10 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 14 PY 2011 VL 134 IS 6 AR 064906 DI 10.1063/1.3534909 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721BW UT WOS:000287327400080 PM 21322733 ER PT J AU Li, XA Brue, DA Kendrick, BK Blandon, JD Parker, GA AF Li, Xuan Brue, Daniel A. Kendrick, Brian K. Blandon, Juan D. Parker, Gregory A. TI Geometric phase for collinear conical intersections. I. Geometric phase angle and vector potentials SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID QUANTUM REACTIVE SCATTERING; ENERGY SURFACES; NONADIABATIC COUPLINGS; POLYATOMIC-MOLECULES; SYSTEM; REPRESENTATION; SPECTRA; MOTION; STATES AB We present a method for properly treating collinear conical intersections in triatomic systems. The general vector potential (gauge theory) approach for including the geometric phase effects associated with collinear conical intersections in hyperspherical coordinates is presented. The current study develops an introductory method in the treatment of collinear conical intersections by using the phase angle method. The geometric phase angle, eta , in terms of purely internal coordinates is derived using the example of a spin-aligned quartet lithium triatomic system. A numerical fit and thus an analytical form for the associated vector potentials are explicitly derived for this triatomic A(3) system. The application of this methodology to AB(2) and ABC systems is also discussed. (C) 2011 American Institute of Physics. [doi:10.1063/1.3549725] C1 [Li, Xuan; Brue, Daniel A.; Blandon, Juan D.; Parker, Gregory A.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA. [Li, Xuan] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada. [Kendrick, Brian K.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Li, XA (reprint author), Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA. EM li@nhn.ou.edu RI Parker, Gregory/A-4327-2009; Li, Xuan/A-4945-2011 OI Parker, Gregory/0000-0002-0225-8887; Li, Xuan/0000-0002-7646-1132 FU National Science Foundation [NSF PHY-0701445, PHY-0355057]; Oklahoma State Regents for Higher Education (OSRHE); Air Force Office of Scientific Research [FA9550-05-0328]; US Department of Energy at Los Alamos National Laboratory; National Nuclear Security Administration of the US Department of Energy [DE-AC52-06NA25396] FX One of us, G. A. P., thanks Russell T. Pack and Vincenzo Aqualanti for many useful interesting discussions about geometric phase effects and hyperspherical coordinates. X. L. thanks Professor Moshe Shapiro for fruitful discussions. This work is supported by the National Science Foundation (Grant Nos. NSF PHY-0701445 and PHY-0355057), the Oklahoma State Regents for Higher Education (OSRHE), the Air Force Office of Scientific Research (Grant No. FA9550-05-0328). B. K. K. acknowledges that part of this work was done under the auspices of the US Department of Energy at Los Alamos National Laboratory. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the US Department of Energy under Contract DE-AC52-06NA25396. NR 38 TC 4 Z9 4 U1 2 U2 13 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 14 PY 2011 VL 134 IS 6 AR 064108 DI 10.1063/1.3549725 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721BW UT WOS:000287327400009 PM 21322662 ER PT J AU Xu, ZL Cheng, XL Yang, HZ AF Xu, Zhenli Cheng, Xiaolin Yang, Haizhao TI Treecode-based generalized Born method SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID MOLECULAR-DYNAMICS SIMULATIONS; POISSON-BOLTZMANN EQUATION; IMPLICIT SOLVENT MODELS; ADAPTIVE FAST MULTIPOLE; PARTICLE MESH EWALD; ELECTROSTATIC INTERACTIONS; BIOMOLECULAR SIMULATIONS; DIELECTRIC ENVIRONMENTS; NUCLEIC-ACIDS; 3 DIMENSIONS AB We have developed a treecode-based O(N log N) algorithm for the generalized Born (GB) implicit solvation model. Our treecode-based GB (tGB) is based on the GBr6 [J. Phys. Chem. B 111, 3055 (2007)], an analytical GB method with a pairwise descreening approximation for the R6 volume integral expression. The algorithm is composed of a cutoff scheme for the effective Born radii calculation, and a treecode implementation of the GB charge-charge pair interactions. Test results demonstrate that the tGB algorithm can reproduce the vdW surface based Poisson solvation energy with an average relative error less than 0.6% while providing an almost linear-scaling calculation for a representative set of 25 proteins with different sizes (from 2815 atoms to 65456 atoms). For a typical system of 10k atoms, the tGB calculation is three times faster than the direct summation as implemented in the original GBr6 model. Thus, our tGB method provides an efficient way for performing implicit solvent GB simulations of larger biomolecular systems at longer time scales. (C) 2011 American Institute of Physics. [doi:10.1063/1.3552945] C1 [Xu, Zhenli; Yang, Haizhao] Shanghai Jiao Tong Univ, Dept Math, Shanghai 200240, Peoples R China. [Xu, Zhenli] Shanghai Jiao Tong Univ, Inst Nat Sci, Shanghai 200240, Peoples R China. [Cheng, Xiaolin] Oak Ridge Natl Lab, Ctr Biophys Mol, Oak Ridge, TN 37831 USA. RP Xu, ZL (reprint author), Shanghai Jiao Tong Univ, Dept Math, Shanghai 200240, Peoples R China. EM xuzl@sjtu.edu.cn; chengx@ornl.gov RI Xu, Zhenli/A-8509-2008; Yang, Haizhao/Q-6524-2016 FU Chinese Ministry of Education [NCET-09-0556]; NSFC [11026057]; U.S. Department of Energy [ERKJE84] FX Z.X. is funded by the Chinese Ministry of Education (NCET-09-0556) and NSFC (Grant No. 11026057). X. C. is funded by the U.S. Department of Energy Field Work Proposal ERKJE84. The authors thank the reviewers for helpful comments and suggestions. NR 80 TC 3 Z9 3 U1 1 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 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 14 PY 2011 VL 134 IS 6 AR 064107 DI 10.1063/1.3552945 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721BW UT WOS:000287327400008 PM 21322661 ER PT J AU Ofan, A Gaathon, O Zhang, LH Evans-Lutterodt, K Bakhru, S Bakhru, H Zhu, YM Welch, D Osgood, RM AF Ofan, Avishai Gaathon, Ophir Zhang, Lihua Evans-Lutterodt, Kenneth Bakhru, Sasha Bakhru, Hassaram Zhu, Yimei Welch, David Osgood, Richard M., Jr. TI Twinning and dislocation pileups in heavily implanted LiNbO3 SO PHYSICAL REVIEW B LA English DT Article ID INSULATOR MATERIAL TECHNOLOGY; LITHIUM-NIOBATE; SINGLE-CRYSTAL; FILMS; HYDROGEN; GUIDE AB The nature of a striking pattern of extended defects formed by very high dose implantation of helium in a complex oxide, for example, ferroelectric z-cut LiNbO3, is studied. After irradiation, a high concentration of defects is found to collect and create a network of thick prismatic planar defects, which have typical dimensions of similar to 1.5 mu m and 200 nm parallel and perpendicular to the z axis, respectively. This defect network and its effect on the lattice were studied using a set of x-ray and electron microscopy probes of the lattice structure and spatial variation. Optical microscopy shows that there is strong temperature dependence for forming the network; the density of these extended defects reaches a maximum value for an annealing temperature of 250 degrees C but is fully eliminated by a temperature of 380 degrees C. High-resolution transmission electron microscopy studies indicate that these extended defects are probably localized twinning and dislocation pileups due to plastic deformation of the lattice to relieve He-implantation-induced stress. During this deformation, He accumulates at the twin boundaries. The study also shows that the He interstitials evolve into bubbles causing high stress and resulting in a formation of thick prismatic planar defects. Finally, a mechanism is proposed for defect creation and elimination. C1 [Ofan, Avishai; Gaathon, Ophir; Osgood, Richard M., Jr.] Columbia Univ, Ctr Integrated Sci & Technol, New York, NY 10027 USA. [Zhang, Lihua; Evans-Lutterodt, Kenneth; Zhu, Yimei; Welch, David] Brookhaven Natl Lab, Upton, NY 11973 USA. [Bakhru, Sasha; Bakhru, Hassaram] SUNY Albany, Coll Nanoscale Sci & Engn, Albany, NY 12222 USA. RP Ofan, A (reprint author), Columbia Univ, Ctr Integrated Sci & Technol, New York, NY 10027 USA. RI Zhang, Lihua/F-4502-2014 FU NSF [DMR-08-0668206]; U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886] FX We thank K. Kisslinger and D. Su for assistance with the TEM imaging and helpful discussions. This work was supported by the NSF (Grant No. DMR-08-0668206). In addition, the research was carried out in part at the Center for Functional Nanomaterials and the National Synchrotron Light Source, Brookhaven National Laboratory, which are supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 27 TC 13 Z9 14 U1 2 U2 23 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 14 PY 2011 VL 83 IS 6 AR 064104 DI 10.1103/PhysRevB.83.064104 PG 8 WC Physics, Condensed Matter SC Physics GA 721OR UT WOS:000287364800002 ER PT J AU Arvanitaki, A Dubovsky, S AF Arvanitaki, Asimina Dubovsky, Sergei TI Exploring the string axiverse with precision black hole physics SO PHYSICAL REVIEW D LA English DT Article ID SPIN; PERTURBATIONS; DYNAMICS; EQUATION AB It has recently been suggested that the presence of a plenitude of light axions, an Axiverse, is evidence for the extra dimensions of string theory. We discuss the observational consequences of these axions on astrophysical black holes through the Penrose superradiance process. When an axion Compton wavelength is comparable to the size of a black hole, the axion binds to the black hole "nucleus'' forming a gravitational atom in the sky. The occupation number of superradiant atomic levels, fed by the energy and angular momentum of the black hole, grows exponentially. The black hole spins down and an axion Bose-Einstein condensate cloud forms around it. When the attractive axion self-interactions become stronger than the gravitational binding energy, the axion cloud collapses, a phenomenon known in condensed matter physics as "bosenova''. The existence of axions is first diagnosed by gaps in the mass vs spin plot of astrophysical black holes. For young black holes the allowed values of spin are quantized, giving rise to "Regge trajectories'' inside the gap region. The axion cloud can also be observed directly either through precision mapping of the near-horizon geometry or through gravitational waves coming from the bosenova explosion, as well as axion transitions and annihilations in the gravitational atom. Our estimates suggest that these signals are detectable in upcoming experiments, such as Advanced LIGO, AGIS, and LISA. Current black hole spin measurements imply an upper bound on the QCD axion decay constant of 2 X 10(17) GeV, while Advanced LIGO can detect signals from a QCD axion cloud with a decay constant as low as the GUT scale. We finally discuss the possibility of observing the gamma-rays associated with the bosenova explosion and, perhaps, the radio waves from axion-to-photon conversion for the QCD axion. C1 [Arvanitaki, Asimina] Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA. [Arvanitaki, Asimina] Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA. [Dubovsky, Sergei] Stanford Univ, Dept Phys, Stanford, CA 94305 USA. [Dubovsky, Sergei] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia. RP Arvanitaki, A (reprint author), Univ Calif Berkeley, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA. NR 52 TC 94 Z9 94 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 14 PY 2011 VL 83 IS 4 AR 044026 DI 10.1103/PhysRevD.83.044026 PG 28 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 721QJ UT WOS:000287369400002 ER PT J AU Bhattacharya, S Kosowsky, A Newman, JA Zentner, AR AF Bhattacharya, Suman Kosowsky, Arthur Newman, Jeffrey A. Zentner, Andrew R. TI Galaxy peculiar velocities from large-scale supernova surveys as a dark energy probe SO PHYSICAL REVIEW D LA English DT Article ID OBSERVATIONS COSMOLOGICAL INTERPRETATION; WEAK-LENSING MEASUREMENTS; HUBBLE-SPACE-TELESCOPE; DIGITAL SKY SURVEY; IA SUPERNOVAE; REDSHIFT SURVEYS; POWER SPECTRUM; CONSTRAINTS; UNIVERSE; GRAVITY AB Upcoming imaging surveys such as the Large Synoptic Survey Telescope will repeatedly scan large areas of sky and have the potential to yield million-supernova catalogs. Type Ia supernovae are excellent standard candles and will provide distance measures that suffice to detect mean pairwise velocities of their host galaxies. We show that when combining these distance measures with photometric redshifts for either the supernovae or their host galaxies, the mean pairwise velocities of the host galaxies will provide a dark energy probe which is competitive with other widely discussed methods. Adding information from this test to type Ia supernova photometric luminosity distances from the same experiment, plus the cosmic microwave background power spectrum from the Planck satellite, improves the Dark Energy Task Force figure of merit by a factor of 1.8. Pairwise velocity measurements require no additional observational effort beyond that required to perform the traditional supernova luminosity distance test, but may provide complementary constraints on dark energy parameters and the nature of gravity. Incorporating additional spectroscopic redshift follow-up observations could provide important dark energy constraints from pairwise velocities alone. Mean pairwise velocities are much less sensitive to systematic redshift errors than the luminosity distance test or weak lensing techniques, and also are only mildly affected by systematic evolution of supernova luminosity. C1 [Bhattacharya, Suman] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Kosowsky, Arthur; Newman, Jeffrey A.; Zentner, Andrew R.] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA. RP Bhattacharya, S (reprint author), Los Alamos Natl Lab, Div Theoret, T-2, Los Alamos, NM 87545 USA. EM sumanb@lanl.gov FU Mellon Foundation at the University of Pittsburgh; Los Alamos National Lab; University of Pittsburgh; National Science Foundation [AST 0806367, AST 0807790, AST 0806732]; Department of Energy FX The authors would like to thank Michael Wood-Vasey for useful discussions about the potential of imaging surveys to improve cosmological constraints from type Ia supernovae and Daniel Holz for discussion about the lensing of supernovae. An anonymous referee provided a number of helpful suggestions to clarify various points, and prompted discovery of a factor-of-2 mistake in computing statistical errors. S. B. was partly supported by the Mellon Foundation at the University of Pittsburgh during this project and the LDRD Program of Los Alamos National Lab. A. R. Z. is funded by the University of Pittsburgh, the National Science Foundation through Grant No. AST 0806367, and by the Department of Energy. A. K. is supported by NSF Grant No. AST 0807790. J. A. N. is funded by the University of Pittsburgh, the National Science Foundation through Grant No. AST 0806732, and by the Department of Energy. NR 70 TC 7 Z9 7 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB 14 PY 2011 VL 83 IS 4 AR 043004 DI 10.1103/PhysRevD.83.043004 PG 18 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 721QJ UT WOS:000287369400001 ER PT J AU Nelson-Cheeseman, BB Shah, AB Santos, TS Bader, SD Zuo, JM Bhattacharya, A AF Nelson-Cheeseman, B. B. Shah, A. B. Santos, T. S. Bader, S. D. Zuo, J. -M. Bhattacharya, A. TI Cation-ordering effects in the single layered manganite La2/3Sr4/3MnO4 SO APPLIED PHYSICS LETTERS LA English DT Article AB Epitaxial La1-xSrxMnO3 center dot SrO (x=1/3) films were synthesized as random alloys and cation-ordered analogs to probe how cation ordering affects the properties of a two dimensional manganite. The films show evidence for a spin glass like phase below 20 K and weak ferromagnetic ordering up to 130 K. There is a dramatic difference in magnetic anisotropy and the low temperature transport mechanism depending on the cation order, which is consistent with differences in Mn 3d orbital occupancies. This work indicates that cation ordering can significantly alter the Mn 3d orbital ground state in these correlated electron systems. (C) 2011 American Institute of Physics. [doi:10.1063/1.3554387] C1 [Nelson-Cheeseman, B. B.; Bader, S. D.; Bhattacharya, A.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Shah, A. B.; Zuo, J. -M.] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA. [Santos, T. S.; Bader, S. D.; Bhattacharya, A.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Nelson-Cheeseman, BB (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM bbnelsonchee@anl.gov RI Bhattacharya, Anand/G-1645-2011; Bader, Samuel/A-2995-2013 OI Bhattacharya, Anand/0000-0002-6839-6860; FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]; Division of Materials Science, DOE BES; U.S. DOE [DE-FG02-07ER46453, DE-FG02-07ER46471] FX Work at Argonne, including the use of the Center for Nanoscale Materials, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. B. N.-C., S. D. B., and A. B. acknowledge the support of the Division of Materials Science, DOE BES. Electron microscopy was carried out at the Frederick Seitz MRL Central Facilities, University of Illinois, which are partially supported by the U.S. DOE under Grant Nos. DE-FG02-07ER46453 and DE-FG02-07ER46471. NR 11 TC 10 Z9 10 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 14 PY 2011 VL 98 IS 7 AR 072505 DI 10.1063/1.3554387 PG 3 WC Physics, Applied SC Physics GA 723LE UT WOS:000287507200041 ER PT J AU Sheehan, C Jung, YY Holesinger, T Feldmann, DM Edney, C Ihlefeld, JF Clem, PG Matias, V AF Sheehan, Chris Jung, Yehyun Holesinger, Terry Feldmann, D. Matthew Edney, Cynthia Ihlefeld, Jon F. Clem, Paul G. Matias, Vladimir TI Solution deposition planarization of long-length flexible substrates SO APPLIED PHYSICS LETTERS LA English DT Article ID BEAM-ASSISTED DEPOSITION; IBAD MGO; LAYERS AB Solution deposition planarization (SDP) is studied for preparing smooth flexible substrates in multimeter lengths. We demonstrate 0.5 nm rms surface roughness starting from unpolished metal tapes and a correlation of substrate roughness with the texture of subsequent ion-beam aligned films. Surface roughness reduction in SDP is modeled via film shrinkage during solution deposition and a residual roughness based on film thickness. Use of solution deposited a-Y(2)O(3) to planarize substrates prior to ion-beam textured MgO growth shows an in-plane texture of MgO down to 4 degrees. Utilizing these templates, we demonstrated superconducting YBa(2)Cu(3)O(y) coated conductors with critical current densities of 2.8-4.0 MA/cm(2) at 75 K. (C) 2011 American Institute of Physics. [doi:10.1063/1.3554754] C1 [Sheehan, Chris; Jung, Yehyun; Holesinger, Terry; Feldmann, D. Matthew; Matias, Vladimir] Los Alamos Natl Lab, MPA STC, Los Alamos, NM 87545 USA. [Edney, Cynthia; Ihlefeld, Jon F.; Clem, Paul G.] Sandia Natl Labs, Albuquerque, NM 87123 USA. RP Matias, V (reprint author), Los Alamos Natl Lab, MPA STC, POB 1663, Los Alamos, NM 87545 USA. EM vlado@lanl.gov RI Ihlefeld, Jon/B-3117-2009 FU Department of Energy Office of Electricity Delivery and Energy Reliability; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX We would like to thank E. John Rowley and Paul Dowden for assistance in this work at Los Alamos National Laboratory. This work was supported by the Department of Energy Office of Electricity Delivery and Energy Reliability. Sandia is a multiprogram laboratory operated by the Sandia Corporation, a Lockheed Martin Co., for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 14 TC 32 Z9 34 U1 5 U2 33 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 14 PY 2011 VL 98 IS 7 AR 071907 DI 10.1063/1.3554754 PG 3 WC Physics, Applied SC Physics GA 723LE UT WOS:000287507200018 ER PT J AU Sankaranarayanan, SKRS Ramanathan, S AF Sankaranarayanan, Subramanian K. R. S. Ramanathan, Shriram TI Interface proximity effects on ionic conductivity in nanoscale oxide-ion conducting yttria stabilized zirconia: An atomistic simulation study SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID OXYGEN DIFFUSION; THIN-FILMS; GRAIN-BOUNDARIES; DEFECT STRUCTURE; RECRYSTALLIZATION; HETEROSTRUCTURES; AMORPHIZATION; ELECTROLYTES; DISLOCATIONS; CRYSTALS AB We present an atomistic simulation study on the size dependence of dopant distribution and the influence of nanoscale film thickness on carrier transport properties of the model oxide-ion conductor yttria stabilized zirconia (YSZ). Simulated amorphization and recrystallization approach was utilized to generate YSZ films with varying thicknesses (3-9 nm) on insulating MgO substrates. The atomic trajectories generated in the molecular dynamics simulations are used to study the structural evolution of the YSZ thin films and correlate the resulting microstructure with ionic transport properties at the nanoscale. The interfacial conductivity increases by 2 orders of magnitude as the YSZ film size decreases from 9 to 3 nm owing to a decrease in activation energy barrier from 0.54 to 0.35 eV in the 1200-2000 K temperature range. Analysis of dopant distribution indicates surface enrichment, the extent of which depends on the film thickness. The mechanisms of oxygen conductivity for the various film thicknesses at the nanoscale are discussed in detail and comparisons with experimental and other modeling studies are presented where possible. The study offers insights into mesoscopic ion conduction mechanisms in low-dimensional solid oxide electrolytes. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3549891] C1 [Sankaranarayanan, Subramanian K. R. S.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Sankaranarayanan, Subramanian K. R. S.; Ramanathan, Shriram] Harvard Univ, Harvard Sch Engn & Appl Sci, Cambridge, MA 02138 USA. RP Sankaranarayanan, SKRS (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. EM skrssank@anl.gov; shriram@deas.harvard.edu FU Office of Naval Research; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX Financial support from the Office of Naval Research is gratefully acknowledged. Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors also thank the computational facilities provided by CNM-ANL and University of South Florida. NR 47 TC 18 Z9 18 U1 3 U2 37 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD FEB 14 PY 2011 VL 134 IS 6 AR 064703 DI 10.1063/1.3549891 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 721BW UT WOS:000287327400064 PM 21322717 ER PT J AU Safronova, UI Safronova, AS Beiersdorfer, P Johnson, WR AF Safronova, U. I. Safronova, A. S. Beiersdorfer, P. Johnson, W. R. TI Excitation energies, radiative and autoionization rates, dielectronic satellite lines and dielectronic recombination rates for excited states of Ag-like W from Pd-like W SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID MANY-BODY CALCULATIONS; I ISOELECTRONIC SEQUENCE; RATE COEFFICIENTS; TUNGSTEN RADIATION; OSCILLATOR-STRENGTHS; TRANSITION RATES; ATOMIC DATA; NI-LIKE; IONS; CIII AB Energy levels, radiative transition probabilities and autoionization rates for [Kr]4d(9)4fnl (n = 4-9), [Kr]4d(9)5l'nl (n = 5-9) and [Kr]4d(9)6l'nl (n = 6-7) states in Ag-like tungsten (W(27+)) are calculated using the relativistic many-body perturbation theory method, the multiconfiguration relativistic Hebrew University Lawrence Livermore Atomic Code and the Hartree-Fock-relativistic method. Branching ratios relative to the first threshold and intensity factors are calculated for satellite lines, and dielectronic recombination (DR) rate coefficients are determined for the singly excited [Kr]4d(10)nl (n = 4-9) states. The total DR rate coefficient is derived as a function of electron temperature. These atomic data are important in the modelling of N-shell radiation spectra of heavy ions generated in various collision as well as plasma experiments. The tungsten data are particularly important for fusion application. C1 [Safronova, U. I.; Safronova, A. S.] Univ Nevada, Dept Phys, Reno, NV 89557 USA. [Beiersdorfer, P.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA. [Johnson, W. R.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA. RP Safronova, UI (reprint author), Univ Nevada, Dept Phys, Reno, NV 89557 USA. EM ulyanas@unr.edu FU DOE under OFES [DE-FG02-08ER54951]; DOE under NNSA [DE-FC52-06NA27588]; DOE [DE-AC52-07NA2344] FX This research was sponsored by DOE under OFES grant DE-FG02-08ER54951 and in part under the NNSA Cooperative agreement DE-FC52-06NA27588. Work at the Lawrence Livermore National Laboratory was performed under auspices of the DOE under contract DE-AC52-07NA2344. NR 58 TC 18 Z9 21 U1 1 U2 8 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0953-4075 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD FEB 14 PY 2011 VL 44 IS 3 AR 035005 DI 10.1088/0953-4075/44/3/035005 PG 15 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 710LH UT WOS:000286512700005 ER PT J AU Tomasi, D Volkow, ND Wang, GJ Wang, R Telang, F Caparelli, EC Wong, C Jayne, M Fowler, JS AF Tomasi, D. Volkow, N. D. Wang, G. J. Wang, R. Telang, F. Caparelli, E. C. Wong, C. Jayne, M. Fowler, J. S. TI Methylphenidate enhances brain activation and deactivation responses to visual attention and working memory tasks in healthy controls SO NEUROIMAGE LA English DT Article DE BOLD-fMRI; Dopamine; Cognition; Brain function; Stimulants; MPH ID SLEEP-DEPRIVATION; DOPAMINERGIC MODULATION; SELECTIVE ATTENTION; FUNCTIONAL MRI; YOUNG ADULTS; 4 TESLA; FMRI; NETWORKS; PATTERNS; SPACE AB Methylphenidate (MPH) is a stimulant drug that amplifies dopamineric and noradrenergic signaling in the brain, which is believed to underlie its cognition enhancing effects. However, the neurobiological effects by which MPH improves cognition are still poorly understood. Here, functional magnetic resonance imaging (fMRI) was used together with working memory (WM) and visual attention (VA) tasks to test the hypothesis that 20 mg oral MPH would increase activation in the dorsal attention network (DAN) and deactivation in the default mode network (DMN) as well as improve performance during cognitive tasks in healthy men. The group of subjects that received MPH (MPH group; N = 16) had higher activation than the group of subjects who received no medication (control group: N = 16) in DAN regions (parietal and prefrontal cortex, regions increasingly activated with increased cognitive load) and had increased deactivation in the insula and posterior cingulate cortex (regions increasingly deactivated with increased cognitive load) and these effects did not differ for the VA and the WM tasks. These findings provide the first evidence that MPH enhances activation of the DAN whereas it alters DMN deactivation. This suggests that MPH (presumably by amplifying dopamine and noradrenergic signaling) modulates cognition in part through its effects on DAN and DMN. Published by Elsevier Inc. C1 [Tomasi, D.; Wang, G. J.; Wang, R.; Caparelli, E. C.; Fowler, J. S.] Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. [Tomasi, D.; Volkow, N. D.; Telang, F.; Wong, C.; Jayne, M.] NIAAA, Bethesda, MD USA. RP Tomasi, D (reprint author), Brookhaven Natl Lab, Dept Med, Bldg 490,30 Bell Ave, Upton, NY 11973 USA. EM tomasi@bnl.gov RI Tomasi, Dardo/J-2127-2015 FU National Institute on Alcohol Abuse and Alcoholism [2RO1AA09481]; National Center for Research Resources [GCRC 5-MO1-RR-10710] FX The National Institute on Alcohol Abuse and Alcoholism (2RO1AA09481) and the National Center for Research Resources (GCRC 5-MO1-RR-10710) supported this work. The authors thank Karen Apelskog-Torres, Barbara Hubbard, Hai-Dee Lee, and Joan Terry for assistance in various aspects of these studies. NR 51 TC 62 Z9 63 U1 1 U2 12 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1053-8119 J9 NEUROIMAGE JI Neuroimage PD FEB 14 PY 2011 VL 54 IS 4 BP 3101 EP 3110 DI 10.1016/j.neuroimage.2010.10.060 PG 10 WC Neurosciences; Neuroimaging; Radiology, Nuclear Medicine & Medical Imaging SC Neurosciences & Neurology; Radiology, Nuclear Medicine & Medical Imaging GA 710FH UT WOS:000286495800052 PM 21029780 ER PT J AU Spence, JCH Kirian, RA Wang, XY Weierstall, U Schmidt, KE White, T Barty, A Chapman, HN Marchesini, S Holton, J AF Spence, John C. H. Kirian, Richard A. Wang, Xiaoyu Weierstall, Uwe Schmidt, Kevin E. White, Thomas Barty, Anton Chapman, Henry N. Marchesini, Stefano Holton, James TI Phasing of coherent femtosecond X-ray diffraction from size-varying nanocrystals SO OPTICS EXPRESS LA English DT Article ID PROTEIN CRYSTALS AB The scattering between Bragg reflections from nanocrystals is used to aid solution of the phase problem. We describe a method for reconstructing the charge density of a typical molecule within a single unit cell, if sufficiently finely-sampled "snap-shot" diffraction data (as provided a free-electron X-ray laser) are available from many nanocrystals of different sizes lying in random orientations. By using information on the particle-size distribution within the patterns, this digital method succeeds, using all the data, without knowledge of the distribution of particle size or requiring atomic-resolution data. (C) 2011 Optical Society of America C1 [Spence, John C. H.; Kirian, Richard A.; Wang, Xiaoyu; Weierstall, Uwe; Schmidt, Kevin E.] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. [White, Thomas; Barty, Anton; Chapman, Henry N.] DESY Univ Hamburg, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany. [Chapman, Henry N.] Univ Hamburg, D-22761 Hamburg, Germany. [Marchesini, Stefano; Holton, James] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Holton, James] Univ Calif San Francisco, Dept Biochem & Biophys, San Francisco, CA 94158 USA. RP Spence, JCH (reprint author), Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. EM spence@asu.edu RI Marchesini, Stefano/A-6795-2009; Chapman, Henry/G-2153-2010; Kirian, Richard/M-3750-2013; Barty, Anton/K-5137-2014; OI Chapman, Henry/0000-0002-4655-1743; Barty, Anton/0000-0003-4751-2727; Kirian, Richard/0000-0001-7197-3086 FU NSF [MCB 1021557] FX We thank Profs. V. Elser and J. Hadju for useful discussions. Supported by NSF award MCB 1021557. NR 22 TC 48 Z9 49 U1 1 U2 29 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA SN 1094-4087 J9 OPT EXPRESS JI Opt. Express PD FEB 14 PY 2011 VL 19 IS 4 BP 2866 EP 2873 DI 10.1364/OE.19.002866 PG 8 WC Optics SC Optics GA 741JM UT WOS:000288860000004 PM 21369108 ER PT J AU Al-Khatib, A Hagemann, GB Sletten, G Singh, AK Amro, H Benzoni, G Bracco, A Bringel, P Camera, F Carpenter, MP Chowdhury, P Clark, RM Engelhardt, C Fallon, P Herskind, B Hubel, H Janssens, RVF Khoo, TL Lauritsen, T Neusser-Neffgen, A Hansen, CR AF Al-Khatib, A. Hagemann, G. B. Sletten, G. Singh, A. K. Amro, H. Benzoni, G. Bracco, A. Bringel, P. Camera, F. Carpenter, M. P. Chowdhury, P. Clark, R. M. Engelhardt, C. Fallon, P. Herskind, B. Huebel, H. Janssens, R. V. F. Khoo, T. L. Lauritsen, T. Neusser-Neffgen, A. Hansen, C. Ronn TI High-spin spectroscopy in Xe-125 SO PHYSICAL REVIEW C LA English DT Article ID STATES AB Levels excited up to 39.8 MeV and 119/2 units of angular momentum have been populated in Xe-125 by the Se-82(Ca-48,5n)Xe-125 reaction. High-fold gamma-ray coincidence events were measured using the Gammasphere Ge detector array. Nine regular rotational bands extending from levels identified previously up to almost 60h have been identified, and three of these have been connected to low-lying levels having well-established spins and parities. Configurations have been assigned to six of the bands based on alignment properties, band crossings, and comparison with theoretical cranked shell model calculations (CSM). Transition quadrupole moments have been measured for these bands in the spin range 31-55h and were found to be in agreement with the CSM calculations. The corresponding quadrupole deformation c(2) ranges from 0.28 to 0.34 at a gamma deformation of 0 degrees and from 0.29 to 0.36 at a gamma value of 5 degrees. C1 [Al-Khatib, A.; Bringel, P.; Engelhardt, C.; Huebel, H.; Neusser-Neffgen, A.] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany. [Hagemann, G. B.; Sletten, G.; Herskind, B.; Hansen, C. Ronn] Niels Bohr Inst, DK-2100 Copenhagen, Denmark. [Singh, A. K.] Indian Inst Technol, Dept Phys & Meteorol, Kharagpur 721302, W Bengal, India. [Amro, H.] Univ Michigan, Dept Radiat Oncol, Ann Arbor, MI 48109 USA. [Benzoni, G.; Bracco, A.; Camera, F.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy. [Benzoni, G.; Bracco, A.; Camera, F.] Ist Nazl Fis Nucl, I-20133 Milan, Italy. [Carpenter, M. P.; Janssens, R. V. F.; Khoo, T. L.; Lauritsen, T.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Chowdhury, P.] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA. [Clark, R. M.; Fallon, P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Al-Khatib, A (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Nussallee 14-16, D-53115 Bonn, Germany. RI Carpenter, Michael/E-4287-2015 OI Carpenter, Michael/0000-0002-3237-5734 FU Danish FNU Council for the Natural Sciences; German BMBF [06 BN 109]; Alexander von Humboldt foundation, Germany; US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357, DE-AC03-76SF00098] FX The authors thank the ANL operations staff at Gamma-sphere and in particular J.P. Greene for help in the target preparation. This work has been supported by the Danish FNU Council for the Natural Sciences, by the German BMBF, under Contract No. 06 BN 109, the Alexander von Humboldt foundation, Germany, and the US Department of Energy, Office of Nuclear Physics, under Contracts No. DE-AC02-06CH11357 (ANL) and No. DE-AC03-76SF00098 (LBNL). NR 11 TC 9 Z9 9 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD FEB 14 PY 2011 VL 83 IS 2 AR 024306 DI 10.1103/PhysRevC.83.024306 PG 13 WC Physics, Nuclear SC Physics GA 721PU UT WOS:000287367900003 ER PT J AU El-Bennich, B Ivanov, MA Roberts, CD AF El-Bennich, Bruno Ivanov, Mikhail A. Roberts, Craig D. TI Strong D* -> D pi and B* -> B pi couplings SO PHYSICAL REVIEW C LA English DT Article ID ELECTROMAGNETIC FORM-FACTORS; DYSON-SCHWINGER EQUATIONS; HADRON PHYSICS; HEAVY; LIGHT; QCD AB We compute g(D*D pi) and g(B*B pi) using a framework in which all elements are constrained by Dyson-Schwinger equation studies of QCD and therefore incorporates a consistent, direct, and simultaneous description of light and heavy quarks and the states they may constitute. We link these couplings with the heavy-light-meson leptonic decay constants and thereby obtain g(D*D pi) = 15.9(-1.0)(+2.1) and g(B*B pi) = 30.0(-1.4)(+3.2). From the latter, we infer (g) over cap (B) = 0.37(-0.02)(+0.04). A comparison between g(D*D pi) and g(B*B pi) indicates that when the c quark is a system's heaviest constituent, Lambda(QCD)/m(c)-corrections are not under good control. C1 [El-Bennich, Bruno] Univ Cruzeiro Sul, Lab Fis Teor & Computacao Cient, BR-01506000 Sao Paulo, Brazil. [El-Bennich, Bruno] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil. [El-Bennich, Bruno; Ivanov, Mikhail A.; Roberts, Craig D.] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China. [Ivanov, Mikhail A.] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia. [Roberts, Craig D.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Roberts, Craig D.] Peking Univ, Dept Phys, Beijing 100871, Peoples R China. RP El-Bennich, B (reprint author), Univ Cruzeiro Sul, Lab Fis Teor & Computacao Cient, Rua Galvao Bueno 868, BR-01506000 Sao Paulo, Brazil. FU Fundacao de Amparo a Pesquisa do Estado de Sao Paulo [2009/51296-1, 2010/05772-3]; Russian Fund for Basic Research [10-02-00368-a]; US Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357] FX B. El-Bennich acknowledges the hospitality of staff at the Bogoliubov Laboratory of Theoretical Physics, where this work was initiated. Work was supported by Fundacao de Amparo a Pesquisa do Estado de Sao Paulo, Grant Nos. 2009/51296-1 and 2010/05772-3; Russian Fund for Basic Research Grant No. 10-02-00368-a; and the US Department of Energy, Office of Nuclear Physics, Contract No. DE-AC02-06CH11357. NR 31 TC 31 Z9 31 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD FEB 14 PY 2011 VL 83 IS 2 AR 025205 DI 10.1103/PhysRevC.83.025205 PG 5 WC Physics, Nuclear SC Physics GA 721PU UT WOS:000287367900007 ER PT J AU Sanchez, PD Lees, JP Poircau, V Prencipe, E Tisserand, V Tico, JG Grauges, E Martinelli, M Milanes, DA Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Brown, DN Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA Khan, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Kravchenko, EA Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Bondioli, M Curry, S Kirkby, D Lankford, AJ Mandelkern, M Martin, EC Stoker, DP Atmacan, H Gary, JW Liu, F Long, O Vitug, GM Campagnari, C Hong, TM Kovalskyi, D Richman, JD West, CA Eisner, AM Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Winstrom, LO Cheng, CH Doll, DA Echenard, B Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Dubrovin, MS Meadows, BT Sokoloff, MD Blanc, F Bloom, PC Ford, WT Gaz, A Nagel, M Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Jasper, H Petzold, A Spaan, B Kobel, MJ Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Fioravanti, E Franchini, P Garzia, I Luppi, E Munerato, M Negrini, M Petrella, A Piemontese, L Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Nicolaci, M Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Bhuyan, B Prasad, V Lee, CL Morii, M Edwards, AJ Adametz, A Marks, J Uwer, U Bernlochner, FU Ebert, M Lacker, HM Lueck, T Volk, A Dauncey, PD Tibbetts, M Behera, PK Mallik, U Chen, C Cochran, J Crawley, HB Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gritsan, AV Guo, ZJ Arnaud, N Davier, M Derkach, D da Costa, JF Grosdidier, G Le Diberder, F Lutz, AM Malaescu, B Perez, A Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wang, L Wormser, G Lange, DJ Wright, DM Bingham, I Chavez, CA Coleman, JP Fry, JR Gabathuler, E Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Sigamani, M Cowan, G Paramesvaran, S Wren, AC Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Hafner, A Alwyn, KE Bailey, D Barlow, RJ Jackson, G Lafferty, GD Anderson, J Cenci, R Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Salvati, E Cowan, R Dujmic, D Sciolla, G Zhao, M Lindemann, D Patel, PM Robertson, SH Schram, M Biassoni, P Lazzaro, A Lombardo, V Palombo, F Stracka, S Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, DJ Nguyen, X Simard, M Taras, P De Nardo, G Monorchio, D Onorato, G Sciacca, C Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Wang, WF Corwin, LA Honscheid, K Kass, R Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Rahmat, R Sinev, NB Strom, D Strube, J Torrence, E Castelli, G Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simonetto, F Stroili, R Ben-Haim, E Bomben, M Bonneaud, GR Briand, H Calderini, G Chauveau, J Hamon, O Leruste, P Marchiori, G Ocariz, J Prendki, J Sitt, S Biasini, M Manoni, E Rossi, A Angelini, C Batignani, G Bettarini, S Carpinelli, M Casarosa, G Cervelli, A Forti, F Giorgi, MA Lusiani, A Neri, N Paoloni, E Rizzo, G Walsh, JJ Pegna, DL Lu, C Olsen, J Smith, AJS Telnov, AV Anulli, F Baracchini, E Cavoto, G Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Gioi, LL Mazzoni, MA Piredda, G Renga, F Buenger, C Hartmann, T Leddig, T Schroder, H Waldi, R Adye, T Olaiya, EO Wilson, FF Emery, S de Monchenault, GH Vasseur, G Yeche, C Allen, MT Aston, D Bard, DJ Bartoldus, R Benitez, JF Cartaro, C Convery, MR Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Field, RC Sevilla, MF Fulsom, BG Gabareen, AM Graham, MT Grenier, P Hast, C Innes, WR Kelsey, MH Kim, H Kim, P Kocian, ML Leith, DWGS Lewis, P Li, S Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Muller, DR Neal, H Nelson, S O'Grady, CP Ofte, I Perl, M Pulliam, T Ratcliff, BN Roodman, A Salnikov, AA Santoro, V Schindler, RH Schwiening, J Snyder, A Su, D Sullivan, MK Sun, S Suzuki, K Thompson, JM Va'vra, J Wagner, AP Weaver, M Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Yarritu, AK Young, CC Ziegler, V Chen, XR Park, W Purohit, MV White, RM Wilson, JR Randle-Conde, A Sekula, SJ Bellis, M Burchat, PR Miyashita, TS Ahmed, S Alam, MS Ernst, JA Pan, B Saeed, MA Zain, SB Guttman, N Soffer, A Lund, P Spanier, SM Eckmann, R Ritchie, JL Ruland, AM Schilling, CJ Schwitters, RF Wray, BC Izen, JM Lou, XC Bianchi, F Gamba, D Pelliccioni, M Lanceri, L Vitale, L Lopez-March, N Martinez-Vidal, F Oyanguren, A Ahmed, H Albert, J Banerjee, S Choi, HHF Hamano, K King, GJ Kowalewski, R Lewczuk, MJ Lindsay, C Nugent, IM Roney, JM Sobie, RJ Gershon, TJ Harrison, PF Latham, TE Puccio, EMT Band, HR Dasu, S Flood, KT Pan, Y Prepost, R Vuosalo, CO Wu, SL AF Sanchez, P. del Amo Lees, J. P. Poircau, V. Prencipe, E. Tisserand, V. Tico, J. Garra Grauges, E. Martinelli, M. Milanes, D. A. Palano, A. Pappagallo, M. Eigen, G. Stugu, B. Sun, L. Brown, D. N. Kerth, L. T. Kolomensky, Yu. G. Lynch, G. Osipenkov, I. L. Koch, H. Schroeder, T. Asgeirsson, D. J. Hearty, C. Mattison, T. S. McKenna, J. A. Khan, A. Blinov, V. E. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Kravchenko, E. A. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Yushkov, A. N. Bondioli, M. Curry, S. Kirkby, D. Lankford, A. J. Mandelkern, M. Martin, E. C. Stoker, D. P. Atmacan, H. Gary, J. W. Liu, F. Long, O. Vitug, G. M. Campagnari, C. Hong, T. M. Kovalskyi, D. Richman, J. D. West, C. A. Eisner, A. M. Heusch, C. A. Kroseberg, J. Lockman, W. S. Martinez, A. J. Schalk, T. Schumm, B. A. Seiden, A. Winstrom, L. O. Cheng, C. H. Doll, D. A. Echenard, B. Hitlin, D. G. Ongmongkolkul, P. Porter, F. C. Rakitin, A. Y. Andreassen, R. Dubrovin, M. S. Meadows, B. T. Sokoloff, M. D. Blanc, F. Bloom, P. C. Ford, W. T. Gaz, A. Nagel, M. Nauenberg, U. Smith, J. G. Wagner, S. R. Ayad, R. Toki, W. H. Jasper, H. Petzold, A. Spaan, B. Kobel, M. J. Schubert, K. R. Schwierz, R. Bernard, D. Verderi, M. Clark, P. J. Playfer, S. Watson, J. E. Andreotti, M. Bettoni, D. Bozzi, C. Calabrese, R. Cecchi, A. Cibinetto, G. Fioravanti, E. Franchini, P. Garzia, I. Luppi, E. Munerato, M. Negrini, M. Petrella, A. Piemontese, L. Baldini-Ferroli, R. Calcaterra, A. de Sangro, R. Finocchiaro, G. Nicolaci, M. Pacetti, S. Patteri, P. Peruzzi, I. M. Piccolo, M. Rama, M. Zallo, A. Contri, R. Guido, E. Lo Vetere, M. Monge, M. R. Passaggio, S. Patrignani, C. Robutti, E. Bhuyan, B. Prasad, V. Lee, C. L. Morii, M. Edwards, A. J. Adametz, A. Marks, J. Uwer, U. Bernlochner, F. U. Ebert, M. Lacker, H. M. Lueck, T. Volk, A. Dauncey, P. D. Tibbetts, M. Behera, P. K. Mallik, U. Chen, C. Cochran, J. Crawley, H. B. Meyer, W. T. Prell, S. Rosenberg, E. I. Rubin, A. E. Gritsan, A. V. Guo, Z. J. Arnaud, N. Davier, M. Derkach, D. da Costa, J. Firmino Grosdidier, G. Le Diberder, F. Lutz, A. M. Malaescu, B. Perez, A. Roudeau, P. Schune, M. H. Serrano, J. Sordini, V. Stocchi, A. Wang, L. Wormser, G. Lange, D. J. Wright, D. M. Bingham, I. Chavez, C. A. Coleman, J. P. Fry, J. R. Gabathuler, E. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Di Lodovico, F. Sacco, R. Sigamani, M. Cowan, G. Paramesvaran, S. Wren, A. C. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Hafner, A. Alwyn, K. E. Bailey, D. Barlow, R. J. Jackson, G. Lafferty, G. D. Anderson, J. Cenci, R. Jawahery, A. Roberts, D. A. Simi, G. Tuggle, J. M. Dallapiccola, C. Salvati, E. Cowan, R. Dujmic, D. Sciolla, G. Zhao, M. Lindemann, D. Patel, P. M. Robertson, S. H. Schram, M. Biassoni, P. Lazzaro, A. Lombardo, V. Palombo, F. Stracka, S. Cremaldi, L. Godang, R. Kroeger, R. Sonnek, P. Summers, D. J. Nguyen, X. Simard, M. Taras, P. De Nardo, G. Monorchio, D. Onorato, G. Sciacca, C. Raven, G. Snoek, H. L. Jessop, C. P. Knoepfel, K. J. LoSecco, J. M. Wang, W. F. Corwin, L. A. Honscheid, K. Kass, R. Blount, N. L. Brau, J. Frey, R. Igonkina, O. Kolb, J. A. Rahmat, R. Sinev, N. B. Strom, D. Strube, J. Torrence, E. Castelli, G. Feltresi, E. Gagliardi, N. Margoni, M. Morandin, M. Posocco, M. Rotondo, M. Simonetto, F. Stroili, R. Ben-Haim, E. Bomben, M. Bonneaud, G. R. Briand, H. Calderini, G. Chauveau, J. Hamon, O. Leruste, Ph. Marchiori, G. Ocariz, J. Prendki, J. Sitt, S. Biasini, M. Manoni, E. Rossi, A. Angelini, C. Batignani, G. Bettarini, S. Carpinelli, M. Casarosa, G. Cervelli, A. Forti, F. Giorgi, M. A. Lusiani, A. Neri, N. Paoloni, E. Rizzo, G. Walsh, J. J. Pegna, D. Lopes Lu, C. Olsen, J. Smith, A. J. S. Telnov, A. V. Anulli, F. Baracchini, E. Cavoto, G. Faccini, R. Ferrarotto, F. Ferroni, F. Gaspero, M. Gioi, L. Li Mazzoni, M. A. Piredda, G. Renga, F. Buenger, C. Hartmann, T. Leddig, T. Schroeder, H. Waldi, R. Adye, T. Olaiya, E. O. Wilson, F. F. Emery, S. de Monchenault, G. Hamel Vasseur, G. Yeche, Ch. Allen, M. T. Aston, D. Bard, D. J. Bartoldus, R. Benitez, J. F. Cartaro, C. Convery, M. R. Dorfan, J. Dubois-Felsmann, G. P. Dunwoodie, W. Field, R. C. Sevilla, M. Franco Fulsom, B. G. Gabareen, A. M. Graham, M. T. Grenier, P. Hast, C. Innes, W. R. Kelsey, M. H. Kim, H. Kim, P. Kocian, M. L. Leith, D. W. G. S. Lewis, P. Li, S. Lindquist, B. Luitz, S. Luth, V. Lynch, H. L. MacFarlane, D. B. Muller, D. R. Neal, H. Nelson, S. O'Grady, C. P. Ofte, I. Perl, M. Pulliam, T. Ratcliff, B. N. Roodman, A. Salnikov, A. A. Santoro, V. Schindler, R. H. Schwiening, J. Snyder, A. Su, D. Sullivan, M. K. Sun, S. Suzuki, K. Thompson, J. M. Va'vra, J. Wagner, A. P. Weaver, M. Wisniewski, W. J. Wittgen, M. Wright, D. H. Wulsin, H. W. Yarritu, A. K. Young, C. C. Ziegler, V. Chen, X. R. Park, W. Purohit, M. V. White, R. M. Wilson, J. R. Randle-Conde, A. Sekula, S. J. Bellis, M. Burchat, P. R. Miyashita, T. S. Ahmed, S. Alam, M. S. Ernst, J. A. Pan, B. Saeed, M. A. Zain, S. B. Guttman, N. Soffer, A. Lund, P. Spanier, S. M. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Wray, B. C. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Pelliccioni, M. Lanceri, L. Vitale, L. Lopez-March, N. Martinez-Vidal, F. Oyanguren, A. Ahmed, H. Albert, J. Banerjee, Sw. Choi, H. H. F. Hamano, K. King, G. J. Kowalewski, R. Lewczuk, M. J. Lindsay, C. Nugent, I. M. Roney, J. M. Sobie, R. J. Gershon, T. J. Harrison, P. F. Latham, T. E. Puccio, E. M. T. Band, H. R. Dasu, S. Flood, K. T. Pan, Y. Prepost, R. Vuosalo, C. O. Wu, S. L. TI Measurement of partial branching fractions of inclusive charmless B meson decays to K+, K-0, and pi(+) SO PHYSICAL REVIEW D LA English DT Article ID SEARCH AB We present measurements of partial branching fractions of B -> K+ X, B -> (KX)-X-0, and B -> pi(+) X, where X denotes any accessible final state above the endpoint for B decays to charmed mesons, specifically for momenta of the candidate hadron greater than 2.34 (2.36) GeV for kaons (pions) in the B rest frame. These measurements are sensitive to potential new-physics particles which could enter the b -> s(d) loop transitions. The analysis is performed on a data sample consisting of 383 X 10(6)B (B) over bar pairs collected with the BABAR detector at the PEP-II e(+)e(-) asymmetric energy collider. We observe the inclusive B -> pi(+) X process, and we set upper limits for B -> K+ X and B -> (KX)-X-0. Our results for these inclusive branching fractions are consistent with those of known exclusive modes, and exclude large enhancements due to sources of new physics. C1 [Sanchez, P. del Amo; Lees, J. P.; Poircau, V.; Prencipe, E.; Tisserand, V.] Univ Savoie, LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. [Tico, J. Garra; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Martinelli, M.; Palano, A.; Pappagallo, M.] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy. [Eigen, G.; Stugu, B.; Sun, L.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway. [Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Osipenkov, I. L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Koch, H.; Schroeder, T.] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany. [Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. 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J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Latham, T. E.; Puccio, E. M. T.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Dasu, S.; Flood, K. T.; Pan, Y.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RP Sanchez, PD (reprint author), Univ Savoie, LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. RI Calabrese, Roberto/G-4405-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Stracka, Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Rizzo, Giuliana/A-8516-2015; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Kravchenko, Evgeniy/F-5457-2015; Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Negrini, Matteo/C-8906-2014; Patrignani, Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012 OI Calabrese, Roberto/0000-0002-1354-5400; 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; Morandin, Mauro/0000-0003-4708-4240; Lusiani, Alberto/0000-0002-6876-3288; Stracka, Simone/0000-0003-0013-4714; Di Lodovico, Francesca/0000-0003-3952-2175; Martinelli, Maurizio/0000-0003-4792-9178; Faccini, Riccardo/0000-0003-2613-5141; Strube, Jan/0000-0001-7470-9301; Chen, Chunhui /0000-0003-1589-9955; Raven, Gerhard/0000-0002-2897-5323; Bellis, Matthew/0000-0002-6353-6043; Cibinetto, Gianluigi/0000-0002-3491-6231; Pacetti, Simone/0000-0002-6385-3508; Carpinelli, Massimo/0000-0002-8205-930X; Sciacca, Crisostomo/0000-0002-8412-4072; Adye, Tim/0000-0003-0627-5059; Rizzo, Giuliana/0000-0003-1788-2866; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Hamel de Monchenault, Gautier/0000-0002-3872-3592; Lafferty, George/0000-0003-0658-4919; Paoloni, Eugenio/0000-0001-5969-8712; Corwin, Luke/0000-0001-7143-3821; Lanceri, Livio/0000-0001-8220-3095; Ebert, Marcus/0000-0002-3014-1512; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Negrini, Matteo/0000-0003-0101-6963; Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria Roberta/0000-0003-1633-3195 FU SLAC; DOE; NSF (USA); NSERC (Canada); CEA; CNRS-IN2P3 (France); BMBF; DFG (Germany); INFN (Italy); FOM (The Netherlands); NFR (Norway); MES (Russia); MICIIN (Spain); STFC (United Kingdom); European Union; A. P. Sloan Foundation (USA); Binational Science Foundation (USA-Israel) FX We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union), the A. P. Sloan Foundation (USA) and the Binational Science Foundation (USA-Israel). NR 18 TC 1 Z9 1 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 14 PY 2011 VL 83 IS 3 AR 031103 DI 10.1103/PhysRevD.83.031103 PG 8 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 721QA UT WOS:000287368500001 ER PT J AU Beresnyak, A AF Beresnyak, A. TI Spectral Slope and Kolmogorov Constant of MHD Turbulence SO PHYSICAL REVIEW LETTERS LA English DT Article ID STRONG IMBALANCED TURBULENCE; MAGNETOHYDRODYNAMIC TURBULENCE; SCALING LAWS; NUMERICAL SIMULATIONS; ALFVENIC TURBULENCE; UNIVERSALITY AB The spectral slope of strong MHD turbulence has recently been a matter of controversy. While the Goldreich-Sridhar model predicts a -5/3 slope, shallower slopes have been observed in numerics. We argue that earlier numerics were affected by driving due to a diffuse locality of energy transfer. Our highest-resolution simulation (3072(2) x 1024) exhibited the asymptotic -5/3 scaling. We also discover that the dynamic alignment, proposed in models with -3/2 slope, saturates and cannot modify the asymptotic, high Reynolds number slope. From the observed -5/3 scaling we measure the Kolmogorov constant C-KA = 3.27 +/- 0.07 for Alfvenic turbulence and C-K = 4.2 +/- 0.2 for full MHD turbulence, which is higher than the hydrodynamic value of 1.64. This larger C-K indicates inefficient energy transfer in MHD turbulence, which is in agreement with diffuse locality. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Beresnyak, A (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. OI Beresnyak, Andrey/0000-0002-2124-7024 FU LANL FX The author was supported by LANL Director's Fellowship. Computations were performed on Ranger through NSF TeraGrid allocation TG-AST080005N. NR 26 TC 60 Z9 60 U1 1 U2 8 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 FEB 14 PY 2011 VL 106 IS 7 AR 075001 DI 10.1103/PhysRevLett.106.075001 PG 4 WC Physics, Multidisciplinary SC Physics GA 721XV UT WOS:000287392000006 PM 21405520 ER PT J AU Heinke, L Karger, J AF Heinke, Lars Kaerger, Joerg TI Correlating Surface Permeability with Intracrystalline Diffusivity in Nanoporous Solids SO PHYSICAL REVIEW LETTERS LA English DT Article ID ATOMIC-FORCE MICROSCOPY; HOST MATERIALS; INTERFERENCE MICROSCOPY; GUEST MOLECULES; ZEOLITES; PROFILES; RESISTANCES; FRAMEWORKS; ISOBUTANE; MEMBRANES AB The rates of uptake and release of guest molecules in nanoporous solids are often strongly influenced or even controlled by transport resistances at the external surface ("surface barriers'') rather than by intraparticle diffusion, which was assumed to be rate controlling in many of the earlier kinetic studies. By correlating the surface resistance with the intracrystalline diffusivity, we develop here a microkinetic model which closely reproduces the experimentally observed results for short-chain alkanes in Zn(tbip), a member of the novel metal-organic framework family of nanoporous materials. It seems likely that this mechanism, which is shown to provide a rational explanation of the commonly observed discrepancies between "macro'' and "micro'' measurements of intracrystalline diffusion, may be fairly general. C1 [Heinke, Lars; Kaerger, Joerg] Univ Leipzig, Dept Interface Phys, Fac Phys & Geosci, D-04103 Leipzig, Germany. [Heinke, Lars] Max Planck Soc, Fritz Haber Inst, D-14195 Berlin, Germany. [Heinke, Lars] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Heinke, L (reprint author), Univ Leipzig, Dept Interface Phys, Fac Phys & Geosci, Linnestr 5, D-04103 Leipzig, Germany. OI Heinke, Lars/0000-0002-1439-9695 FU German Science Foundation; Fonds der Chemischen Industrie; Studienstiftung des Deutschen Volkes FX We gratefully acknowledge stimulating discussions with Armin Bunde (Giessen, Germany), and Douglas M. Ruthven (Maine, USA), as well as financial support by German Science Foundation, Fonds der Chemischen Industrie and Studienstiftung des Deutschen Volkes. NR 35 TC 39 Z9 40 U1 1 U2 35 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 FEB 14 PY 2011 VL 106 IS 7 AR 074501 DI 10.1103/PhysRevLett.106.074501 PG 4 WC Physics, Multidisciplinary SC Physics GA 721XV UT WOS:000287392000005 PM 21405519 ER PT J AU Zhang, S Benson, S Evtushenko, P Wilson, F AF Zhang, S. Benson, S. Evtushenko, P. Wilson, F. TI A simple gating technique for high-average-current photo-injectors SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE High current accelerator; Electron source; Electron beam contrast; Photo-cathode drive lasers AB This paper describes a simple method that substantially improves the production of gated electron bunch trains by totally suppressing undesired background photoemission between the trains. A device has been designed and tested with a drive laser for proof-of-principle demonstration. The predicted functionality and performance are verified on an Energy-Recovery-Linac (ERL) electron accelerator. The method can find applications whenever the laser pulse repetition rate and length need to be tailored. (C) 2010 Elsevier B.V. All rights reserved. C1 [Zhang, S.; Benson, S.; Evtushenko, P.; Wilson, F.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. RP Zhang, S (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. EM shukui@jlab.org FU DOE [DE-AC05-060R23171] FX The authors of this paper would like to extend sincere thanks to D. Sexton, C. Dickover, members from Optics group and Instruments and Control group at the Jefferson Lab FEL Facility, for their help during the test and measurement. This work is supported by DOE Contract DE-AC05-060R23171. NR 10 TC 0 Z9 3 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD FEB 11 PY 2011 VL 629 IS 1 BP 11 EP 15 DI 10.1016/j.nima.2010.11.059 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 724DK UT WOS:000287556100003 ER PT J AU Batygin, YK AF Batygin, Yuri K. TI Space charge effects in cyclotron gas stopper SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Gas stopper; Isotope; Radioactive ion; Particle-in-cell; Space charge ID RARE ISOTOPE BEAMS AB The cyclotron gas stopper is a newly proposed device to stop energetic rare isotope ions from projectile fragmentation reactions in a helium-filled chamber [1,2]. The radioactive ions are slowed down by collisions using a buffer gas inside a cyclotron-type magnet and are extracted via interactions with a radio frequency (RF) field applied to a sequence of concentric electrodes (RF carpet). The present study focuses on a detailed understanding of space charge effects in the ion extraction region. The space charge is generated by the ionized helium gas created by the stopping of the ions and eventually limits the beam rate. Particle-in-cell simulations of a two-component (electron-helium) plasma interacting via Coulomb forces were performed in the space charge field created by the stopping beam. (C) 2010 Elsevier B.V. All rights reserved. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Batygin, YK (reprint author), Los Alamos Natl Lab, POB 1663,MS H817, Los Alamos, NM 87545 USA. EM batygin@yahoo.com NR 6 TC 2 Z9 2 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD FEB 11 PY 2011 VL 629 IS 1 BP 37 EP 42 DI 10.1016/j.nima.2010.10.146 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 724DK UT WOS:000287556100007 ER PT J AU Orton, CR Fraga, CG Christensen, RN Schwantes, JM AF Orton, Christopher R. Fraga, Carlos G. Christensen, Richard N. Schwantes, Jon M. TI Proof of concept simulations of the Multi-Isotope Process monitor: An online, nondestructive, near-real-time safeguards monitor for nuclear fuel reprocessing facilities SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Nuclear safeguards; Reprocessing; Gamma spectroscopy; Spent nuclear fuel; Nondestructive assay AB The International Atomic Energy Agency will require the development of advanced technologies to effectively safeguard nuclear material at increasingly large-scale nuclear recycling facilities. Ideally, the envisioned technologies would be capable of nondestructive, near-real-time, autonomous process monitoring. This paper describes recent results from model simulations designed to test the Multi-Isotope Process (MIP) monitor, a novel addition to a safeguards system for reprocessing facilities. The MIP monitor combines the detection of intrinsic gamma ray signatures emitted from process solutions with multivariate analysis to detect off-normal conditions in process streams nondestructively and in near-real-time. Three computer models including ORIGEN-ARP, AMUSE, and SYNTH were used in series to predict spent nuclear fuel composition, estimate element partitioning during separation, and simulate spectra from product and raffinate streams using a variety of gamma detectors, respectively. Simulations were generated for fuel with various irradiation histories and under a variety of plant operating conditions. Principal component analysis was applied to the simulated gamma spectra to investigate pattern variations as a function of acid concentration, burnup, and cooling time. Hierarchical cluster analysis and partial least squares (PLS) were also used in the analysis. The MIP monitor was found to be sensitive to induced variations of several operating parameters including distinguishing +/- 2.5% variation from normal process acid concentrations. The ability of PLS to predict burnup levels from simulated spectra was also demonstrated to be within 3.5% of measured values. (C) 2010 Published by Elsevier B.V. C1 [Orton, Christopher R.; Fraga, Carlos G.; Schwantes, Jon M.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Christensen, Richard N.] Ohio State Univ, Nucl Engn Program, Columbus, OH 43210 USA. RP Orton, CR (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. EM christopher.orton@pnl.gov; carlos.fraga@pnl.gov; christensen.3@osu.edu; jon.schwantes@pnl.gov RI lee, yunzhu/G-1723-2011 FU U.S. Department of Energy by Battelle [DE-AC05-76RL01830]; U.S. Department of Energy's Office of Nuclear Energy FX The authors thank the U.S. Department of Energy's Office of Nuclear Energy's Fuel Cycle Research and Development program for the funding of this work. Pacific Northwest National Laboratory is operated for the U.S. Department of Energy by Battelle under Contract DE-AC05-76RL01830. The authors also acknowledge and thank George Vandegrift, Monica Regalbuto, Allen Bakel, Candido Pereira, John Krebs, and Jackie Copple at Argonne National Laboratory for the use of the AMUSE computer code. NR 35 TC 10 Z9 10 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD FEB 11 PY 2011 VL 629 IS 1 BP 209 EP 219 DI 10.1016/j.nima.2010.10.024 PG 11 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 724DK UT WOS:000287556100034 ER PT J AU Aarts, G Kim, S Lombardo, MP Oktay, MB Ryan, SM Sinclair, DK Skullerud, JI AF Aarts, G. Kim, S. Lombardo, M. P. Oktay, M. B. Ryan, S. M. Sinclair, D. K. Skullerud, J. -I. TI Bottomonium above Deconfinement in Lattice Nonrelativistic QCD SO PHYSICAL REVIEW LETTERS LA English DT Article ID HEAVY-QUARKONIUM; PHYSICS; PLASMA; LHC AB We study the temperature dependence of bottomonium for temperatures in the range 0.4T(c) < T < 2.1T(c), using nonrelativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for N(f) = 2 light flavors on a highly anisotropic lattice. We find that the Y is insensitive to the temperature in this range, while the chi(b) propagators showa crossover from the exponential decay characterizing the hadronic phase to a power-law behavior consistent with nearly free dynamics at T similar or equal to 2T(c). C1 [Aarts, G.] Swansea Univ, Dept Phys, Swansea SA2 8PP, W Glam, Wales. [Kim, S.] Sejong Univ, Dept Phys, Seoul 143747, South Korea. [Lombardo, M. P.] INFN Lab Nazl Frascati, I-00044 Frascati, RM, Italy. [Oktay, M. B.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA. [Ryan, S. M.] Trinity Coll Dublin, Sch Math, Dublin 2, Ireland. [Sinclair, D. K.] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA. [Skullerud, J. -I.] Natl Univ Ireland Maynooth, Dept Math Phys, Maynooth, Kildare, Ireland. RP Aarts, G (reprint author), Swansea Univ, Dept Phys, Swansea SA2 8PP, W Glam, Wales. OI Skullerud, Jon-Ivar/0000-0002-8255-0043; Aarts, Gert/0000-0002-6038-3782 FU STFC; Korea government (MEST) [2010-0022219]; U.S. Department of Energy [DE-AC02-06CH11357]; Science Foundation Ireland [08-RFP-PHY1462]; Research Executive Agency (REA) of the European Union [PITN-GA-2009-238353] FX M. P. L. thanks Helmut Satz, Peter Petreczky, and participants in the "In Media" group of the Quarkonium Working Group for fruitful discussions. S. K. and M. P. L. thank the Yukawa Institute of Theoretical Physics, Kyoto, and G. A. and M. P. L. thank Trinity College Dublin and the National University of Ireland Maynooth, for their hospitality. S. M. R. and J.I.S. are grateful to the Trinity Centre for High-Performance Computing for their support. G. A. is supported by STFC. S. K. is supported by the National Research Foundation of Korea grant funded by the Korea government (MEST) No. 2010-0022219. D. K. S. is supported in part by U.S. Department of Energy Contract No. DE-AC02-06CH11357. J.I.S. is supported by Science Foundation Ireland Grant No. 08-RFP-PHY1462. S. M. R. is supported by the Research Executive Agency (REA) of the European Union under Grant Agreement No. PITN-GA-2009-238353 (ITN STRONGnet). NR 35 TC 44 Z9 44 U1 1 U2 7 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 FEB 11 PY 2011 VL 106 IS 6 AR 061602 DI 10.1103/PhysRevLett.106.061602 PG 4 WC Physics, Multidisciplinary SC Physics GA 721LV UT WOS:000287357100005 PM 21405456 ER PT J AU Adare, A Afanasiev, S Aidala, C Ajitanand, NN Akiba, Y Akimoto, R Alexander, J Al-Ta'ani, H Andrews, KR Angerami, A Aoki, K Apadula, N Appelt, E Aramaki, Y Armendariz, R Aschenauer, EC Awes, TC Azmoun, B Babintsev, V Bai, M Bannier, B Barish, KN Bassalleck, B Basye, AT Bathe, S Baublis, V Baumann, C Bazilevsky, A Belmont, R Ben-Benjamin, J Bennett, R Berdnikov, A Berdnikov, Y Blau, DS Bok, JS Boyle, K Brooks, ML Broxmeyer, D Buesching, H Bumazhnov, V Bunce, G Butsyk, S Campbell, S Caringi, A Castera, P Chen, CH Chi, CY Chiu, M Choi, IJ Choi, JB Choudhury, RK Christiansen, P Chujo, T Chvala, O Cianciolo, V Citron, Z Cole, BA del Valle, ZC Connors, M Csanad, M Csorgo, T Dairaku, S Datta, A David, G Dayananda, MK Denisov, A Deshpande, A Desmond, EJ Dharmawardane, KV Dietzsch, O Dion, A Donadelli, M D'Orazio, L Drapier, O Drees, A Drees, KA Durham, JM Durum, A Efremenko, YV Engelmore, T Enokizono, A En'yo, H Esumi, S Fadem, B Fields, DE Finger, M Finger, M Fleuret, F Fokin, SL Frantz, JE Franz, A Frawley, AD Fukao, Y Fusayasu, T Garishvili, I Glenn, A Gong, X Gonin, M Goto, Y de Cassagnac, RG Grau, N Greene, SV Perdekamp, MG Gunji, T Guo, L Gustafsson, HA Haggerty, JS Hahn, KI Hamagaki, H Hamblen, J Hanks, J Han, R Harper, C Hashimoto, K Haslum, E Hayano, R Hemmick, TK Hester, T He, X Hill, JC Hollis, RS Holzmann, W Homma, K Hong, B Horaguchi, T Hori, Y Hornback, D Huang, S Ichihara, T Ichimiya, R Iinuma, H Ikeda, Y Imai, K Inaba, M Iordanova, A Isenhower, D Ishihara, M Issah, M Isupov, A Ivanischev, D Iwanaga, Y Jacak, BV Jia, J Jiang, X Johnson, BM Jones, T Joo, KS Jouan, D Kamin, J Kaneti, S Kang, BH Kang, JH Kang, JS Kapustinsky, J Karatsu, K Kasai, M Kawall, D Kazantsev, AV Kempel, T Khanzadeev, A Kijima, KM Kim, BI Kim, DJ Kim, EJ Kim, YJ Kim, YK Kinney, E Kiss, A Kistenev, E Kleinjan, D Kline, P Kochenda, L Komkov, B Konno, M Koster, J Kotov, D Kral, A Kunde, GJ Kurita, K Kurosawa, M Kwon, Y Kyle, GS Lacey, R Lai, YS Lajoie, JG Lebedev, A Lee, DM Lee, J Lee, KB Lee, KS Lee, SH Lee, SR Leitch, MJ Leite, MAL Lichtenwalner, P Lim, SH Levy, LAL Litvinenko, A Liu, H Liu, MX Li, X Love, B Lynch, D Maguire, CF Makdisi, YI Malakhov, A Manion, A Manko, VI Mannel, E Mao, Y Masui, H McCumber, M McGaughey, PL McGlinchey, D McKinney, C Means, N Mendoza, M Meredith, B Miake, Y Mibe, T Mignerey, AC Miki, K Milov, A Mitchell, JT Miyachi, Y Mohanty, AK Moon, HJ Morino, Y Morreale, A Morrison, DP Motschwiller, S Moukhanova, TV Murakami, T Murata, J Nagamiya, S Nagle, JL Naglis, M Nagy, MI Nakagawa, I Nakamiya, Y Nakamura, KR Nakamura, T Nakano, K Newby, J Nguyen, M Nihashi, M Nouicer, R Nyanin, AS Oakley, C O'Brien, E Ogilvie, CA Okada, K Oka, M Oskarsson, A Ouchida, M Ozawa, K Pak, R Pantuev, V Papavassiliou, V Park, BH Park, IH Park, SK Pate, SF Pei, H Peng, JC Pereira, H Peresedov, V Peressounko, DY Petti, R Pinkenburg, C Pisani, RP Proissl, M Purschke, ML Qu, H Rak, J Ravinovich, I Read, KF Reygers, K Riabov, V Riabov, Y Richardson, E Roach, D Roche, G Rolnick, SD Rosati, M Rosendahl, SSE Rukoyatkin, P Sahlmueller, B Saito, N Sakaguchi, T Samsonov, V Sano, S Sarsour, M Sato, T Savastio, M Sawada, S Sedgwick, K Seidl, R Seto, R Sharma, D Shein, I Shibata, TA Shigaki, K Shim, HH Shimomura, M Shoji, K Shukla, P Sickles, A Silva, CL Silvermyr, D Silvestre, C Sim, KS Singh, BK Singh, CP Singh, V Slunecka, M Sodre, T Soltz, RA Sondheim, WE Sorensen, SP Sourikova, IV Stankus, PW Stenlund, E Stoll, SP Sugitate, T Sukhanov, A Sun, J Sziklai, J Takagui, EM Takahara, A Taketani, A Tanabe, R Tanaka, Y Taneja, S Tanida, K Tannenbaum, MJ Tarafdar, S Taranenko, A Tennant, E Themann, H Thomas, D Togawa, M Tomasek, L Tomasek, M Torii, H Towell, RS Tserruya, I Tsuchimoto, Y Utsunomiya, K Vale, C van Hecke, HW Vazquez-Zambrano, E Veicht, A Velkovska, J Vertesi, R Virius, M Vossen, A Vrba, V Vznuzdaev, E Wang, XR Watanabe, D Watanabe, K Watanabe, Y Watanabe, YS Wei, F Wei, R Wessels, J White, SN Winter, D Woody, CL Wright, RM Wysocki, M Yamaguchi, YL Yang, R Yanovich, A Ying, J Yokkaichi, S Yoo, JS Young, GR Younus, I You, Z Yushmanov, IE Zajc, WA Zelenski, A Zhou, S Zolin, L AF Adare, A. Afanasiev, S. Aidala, C. Ajitanand, N. N. Akiba, Y. Akimoto, R. Alexander, J. Al-Ta'ani, H. Andrews, K. R. Angerami, A. Aoki, K. Apadula, N. Appelt, E. Aramaki, Y. Armendariz, R. Aschenauer, E. C. Awes, T. C. Azmoun, B. Babintsev, V. Bai, M. Bannier, B. Barish, K. N. Bassalleck, B. Basye, A. T. Bathe, S. Baublis, V. Baumann, C. Bazilevsky, A. Belmont, R. Ben-Benjamin, J. Bennett, R. Berdnikov, A. Berdnikov, Y. Blau, D. S. Bok, J. S. Boyle, K. Brooks, M. L. Broxmeyer, D. Buesching, H. Bumazhnov, V. Bunce, G. Butsyk, S. Campbell, S. Caringi, A. Castera, P. Chen, C. -H. Chi, C. Y. Chiu, M. Choi, I. J. Choi, J. B. Choudhury, R. K. Christiansen, P. Chujo, T. Chvala, O. Cianciolo, V. Citron, Z. Cole, B. A. del Valle, Z. Conesa Connors, M. Csanad, M. Csoergo, T. Dairaku, S. Datta, A. David, G. Dayananda, M. K. Denisov, A. Deshpande, A. Desmond, E. J. Dharmawardane, K. V. Dietzsch, O. Dion, A. Donadelli, M. D'Orazio, L. Drapier, O. Drees, A. Drees, K. A. Durham, J. M. Durum, A. Efremenko, Y. V. Engelmore, T. Enokizono, A. En'yo, H. Esumi, S. Fadem, B. Fields, D. E. Finger, M., Jr. Finger, M. Fleuret, F. Fokin, S. L. Frantz, J. E. Franz, A. Frawley, A. D. Fukao, Y. Fusayasu, T. Garishvili, I. Glenn, A. Gong, X. Gonin, M. Goto, Y. de Cassagnac, R. Granier Grau, N. Greene, S. V. Perdekamp, M. Grosse Gunji, T. Guo, L. Gustafsson, H-A Haggerty, J. S. Hahn, K. I. Hamagaki, H. Hamblen, J. Hanks, J. Han, R. Harper, C. Hashimoto, K. Haslum, E. Hayano, R. Hemmick, T. K. Hester, T. He, X. Hill, J. C. Hollis, R. S. Holzmann, W. Homma, K. Hong, B. Horaguchi, T. Hori, Y. Hornback, D. Huang, S. Ichihara, T. Ichimiya, R. Iinuma, H. Ikeda, Y. Imai, K. Inaba, M. Iordanova, A. Isenhower, D. Ishihara, M. Issah, M. Isupov, A. Ivanischev, D. Iwanaga, Y. Jacak, B. V. Jia, J. Jiang, X. Johnson, B. M. Jones, T. Joo, K. S. Jouan, D. Kamin, J. Kaneti, S. Kang, B. H. Kang, J. H. Kang, J. S. Kapustinsky, J. Karatsu, K. Kasai, M. Kawall, D. Kazantsev, A. V. Kempel, T. Khanzadeev, A. Kijima, K. M. Kim, B. I. Kim, D. J. Kim, E. J. Kim, Y. -J. Kim, Y. K. Kinney, E. Kiss, A. Kistenev, E. Kleinjan, D. Kline, P. Kochenda, L. Komkov, B. Konno, M. Koster, J. Kotov, D. Kral, A. Kunde, G. J. Kurita, K. Kurosawa, M. Kwon, Y. Kyle, G. S. Lacey, R. Lai, Y. S. Lajoie, J. G. Lebedev, A. Lee, D. M. Lee, J. Lee, K. B. Lee, K. S. Lee, S. H. Lee, S. R. Leitch, M. J. Leite, M. A. L. Lichtenwalner, P. Lim, S. H. Levy, L. A. Linden Litvinenko, A. Liu, H. Liu, M. X. Li, X. Love, B. Lynch, D. Maguire, C. F. Makdisi, Y. I. Malakhov, A. Manion, A. Manko, V. I. Mannel, E. Mao, Y. Masui, H. McCumber, M. McGaughey, P. L. McGlinchey, D. McKinney, C. Means, N. Mendoza, M. Meredith, B. Miake, Y. Mibe, T. Mignerey, A. C. Miki, K. Milov, A. Mitchell, J. T. Miyachi, Y. Mohanty, A. K. Moon, H. J. Morino, Y. Morreale, A. Morrison, D. P. Motschwiller, S. Moukhanova, T. V. Murakami, T. Murata, J. Nagamiya, S. Nagle, J. L. Naglis, M. Nagy, M. I. Nakagawa, I. Nakamiya, Y. Nakamura, K. R. Nakamura, T. Nakano, K. Newby, J. Nguyen, M. Nihashi, M. Nouicer, R. Nyanin, A. S. Oakley, C. O'Brien, E. Ogilvie, C. A. Okada, K. Oka, M. Oskarsson, A. Ouchida, M. Ozawa, K. Pak, R. Pantuev, V. Papavassiliou, V. Park, B. H. Park, I. H. Park, S. K. Pate, S. F. Pei, H. Peng, J. -C. Pereira, H. Peresedov, V. Peressounko, D. Yu. Petti, R. Pinkenburg, C. Pisani, R. P. Proissl, M. Purschke, M. L. Qu, H. Rak, J. Ravinovich, I. Read, K. F. Reygers, K. Riabov, V. Riabov, Y. Richardson, E. Roach, D. Roche, G. Rolnick, S. D. Rosati, M. Rosendahl, S. S. E. Rukoyatkin, P. Sahlmueller, B. Saito, N. Sakaguchi, T. Samsonov, V. Sano, S. Sarsour, M. Sato, T. Savastio, M. Sawada, S. Sedgwick, K. Seidl, R. Seto, R. Sharma, D. Shein, I. Shibata, T. -A. Shigaki, K. Shim, H. H. Shimomura, M. Shoji, K. Shukla, P. Sickles, A. Silva, C. L. Silvermyr, D. Silvestre, C. Sim, K. S. Singh, B. K. Singh, C. P. Singh, V. Slunecka, M. Sodre, T. Soltz, R. A. Sondheim, W. E. Sorensen, S. P. Sourikova, I. V. Stankus, P. W. Stenlund, E. Stoll, S. P. Sugitate, T. Sukhanov, A. Sun, J. Sziklai, J. Takagui, E. M. Takahara, A. Taketani, A. Tanabe, R. Tanaka, Y. Taneja, S. Tanida, K. Tannenbaum, M. J. Tarafdar, S. Taranenko, A. Tennant, E. Themann, H. Thomas, D. Togawa, M. Tomasek, L. Tomasek, M. Torii, H. Towell, R. S. Tserruya, I. Tsuchimoto, Y. Utsunomiya, K. Vale, C. van Hecke, H. W. Vazquez-Zambrano, E. Veicht, A. Velkovska, J. Vertesi, R. Virius, M. Vossen, A. Vrba, V. Vznuzdaev, E. Wang, X. R. Watanabe, D. Watanabe, K. Watanabe, Y. Watanabe, Y. S. Wei, F. Wei, R. Wessels, J. White, S. N. Winter, D. Woody, C. L. Wright, R. M. Wysocki, M. Yamaguchi, Y. L. Yang, R. Yanovich, A. Ying, J. Yokkaichi, S. Yoo, J. S. Young, G. R. Younus, I. You, Z. Yushmanov, I. E. Zajc, W. A. Zelenski, A. Zhou, S. Zolin, L. CA PHENIX Collaboration TI Cross Section and Parity-Violating Spin Asymmetries of W-+/- Boson Production in Polarized p plus p Collisions at root s=500 Gev SO PHYSICAL REVIEW LETTERS LA English DT Article ID PARTON DISTRIBUTIONS; PHYSICS; SCATTERING; PROTON AB Large parity-violating longitudinal single-spin asymmetries A(L)(e+) = 0.86(-0.14)(+0.30) and Ae(L)(e-) = 0.88(-0.71)(+0.12) are observed for inclusive high transverse momentum electrons and positrons in polarized p + p collisions at a center-of-mass energy of root s = 500 GeV with the PHENIX detector at RHIC. These e(+/-) come mainly from the decay of W-+/- and Z(0) bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W-+/- to the light quarks. The observed electron and positron yields were used to estimate W-+/- boson production cross sections for the e(+/-) channels of sigma(pp -> W+X) X BR(W+ -> e(+) nu(e)) = 144.1 +/- 21.2(stat)(-10.3)(+3.4)(syst) +/- 21.6(norm) pb, and sigma(pp -> W-X) X BR(W- -> e(-) (nu) over bar (e)) = 3.17 +/- 12.1(stat)(-8.2)(+10.1)(syst) +/- 4.8(norm) pb. C1 [Adare, A.; Kinney, E.; Levy, L. A. Linden; Nagle, J. L.; Wysocki, M.] Univ Colorado, Boulder, CO 80309 USA. [Andrews, K. R.; Basye, A. T.; Isenhower, D.; Jones, T.; Thomas, D.; Towell, R. S.; Wright, R. M.] Abilene Christian Univ, Abilene, TX 79699 USA. [Singh, B. K.; Singh, C. P.; Singh, V.; Tarafdar, S.] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India. [Choudhury, R. K.; Mohanty, A. K.; Shukla, P.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Bai, M.; Drees, K. A.; Makdisi, Y. I.; Zelenski, A.] Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA. [Aschenauer, E. C.; Azmoun, B.; Bazilevsky, A.; Buesching, H.; Bunce, G.; Chiu, M.; David, G.; Desmond, E. J.; Franz, A.; Haggerty, J. S.; Jia, J.; Johnson, B. M.; Kistenev, E.; Lynch, D.; Mitchell, J. T.; Morrison, D. P.; Nouicer, R.; O'Brien, E.; Pak, R.; Pinkenburg, C.; Pisani, R. P.; Purschke, M. L.; Sakaguchi, T.; Sickles, A.; Sourikova, I. V.; Stoll, S. P.; Sukhanov, A.; Tannenbaum, M. J.; Vale, C.; White, S. N.; Woody, C. L.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Armendariz, R.; Barish, K. N.; Chvala, O.; Hester, T.; Hollis, R. S.; Iordanova, A.; Kleinjan, D.; Mendoza, M.; Morreale, A.; Rolnick, S. D.; Sedgwick, K.; Seto, R.] Univ Calif Riverside, Riverside, CA 92521 USA. [Finger, M., Jr.; Finger, M.; Slunecka, M.] Charles Univ Prague, CR-11636 Prague 1, Czech Republic. [Choi, J. B.; Kim, E. J.; Lee, S. R.] Chonbuk Natl Univ, Jeonju 561756, South Korea. [Li, X.; Zhou, S.] CIAE, Beijing, Peoples R China. [Akimoto, R.; Aramaki, Y.; Gunji, T.; Hamagaki, H.; Hayano, R.; Hori, Y.; Morino, Y.; Ozawa, K.; Sano, S.; Takahara, A.; Utsunomiya, K.; Watanabe, Y. S.; Yamaguchi, Y. L.] Univ Tokyo, Grad Sch Sci, Ctr Nucl Study, Bunkyo Ku, Tokyo 1130033, Japan. [Angerami, A.; Chi, C. Y.; Cole, B. A.; Engelmore, T.; Grau, N.; Hanks, J.; Holzmann, W.; Lai, Y. S.; Mannel, E.; Vazquez-Zambrano, E.; Veicht, A.; Winter, D.; Zajc, W. A.] Nevis Labs, Irvington, NY 10533 USA. [Angerami, A.; Chi, C. Y.; Cole, B. A.; Engelmore, T.; Grau, N.; Hanks, J.; Holzmann, W.; Lai, Y. S.; Mannel, E.; Vazquez-Zambrano, E.; Veicht, A.; Winter, D.; Zajc, W. A.] Columbia Univ, New York, NY 10027 USA. [Kral, A.; Virius, M.] Czech Tech Univ, Prague 16636 6, Czech Republic. [Pereira, H.; Silvestre, C.] CEA Saclay, F-91191 Gif Sur Yvette, France. [Csanad, M.; Kiss, A.] Eotvos Lorand Univ, ELTE, H-1117 Budapest, Hungary. [Hahn, K. I.; Lee, J.; Park, I. H.; Yoo, J. S.] Ewha Womans Univ, Seoul 120750, South Korea. [Frawley, A. D.; McGlinchey, D.] Florida State Univ, Tallahassee, FL 32306 USA. [Dayananda, M. K.; He, X.; Oakley, C.; Qu, H.; Sarsour, M.; Ying, J.] Georgia State Univ, Atlanta, GA 30303 USA. [Kang, B. H.; Kang, J. S.; Kim, Y. K.; Park, B. H.] Hanyang Univ, Seoul 133792, South Korea. [Homma, K.; Iwanaga, Y.; Kijima, K. M.; Nakamiya, Y.; Nihashi, M.; Ouchida, M.; Shigaki, K.; Sugitate, T.; Torii, H.; Tsuchimoto, Y.; Watanabe, D.] Hiroshima Univ, Higashihiroshima 7398526, Japan. [Babintsev, V.; Bumazhnov, V.; Denisov, A.; Durum, A.; Shein, I.; Yanovich, A.] Inst High Energy Phys, State Res Ctr Russian Federat, IHEP Protvino, Protvino 142281, Russia. [Choi, I. J.; Perdekamp, M. Grosse; Kim, Y. -J.; Koster, J.; McKinney, C.; Meredith, B.; Peng, J. -C.; Vossen, A.; Yang, R.] Univ Illinois, Urbana, IL 61801 USA. [Tomasek, L.; Tomasek, M.; Vrba, V.] Acad Sci Czech Republic, Inst Phys, Prague 18221 8, Czech Republic. [Dion, A.; Hill, J. C.; Kempel, T.; Lajoie, J. G.; Lebedev, A.; Ogilvie, C. A.; Pei, H.; Rosati, M.; Silva, C. L.; Wei, F.] Iowa State Univ, Ames, IA 50011 USA. [Afanasiev, S.; Isupov, A.; Litvinenko, A.; Malakhov, A.; Peresedov, V.; Rukoyatkin, P.; Zolin, L.] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia. [Kim, D. J.; Rak, J.] Univ Jyvaskyla, FI-40014 Jyvaskyla, Finland. [Kim, D. J.; Rak, J.] Helsinki Inst Phys, FI-40014 Jyvaskyla, Finland. [Iinuma, H.; Mibe, T.; Nagamiya, S.; Saito, N.; Sawada, S.] High Energy Accelerator Res Org, KEK, Tsukuba, Ibaraki 3050801, Japan. [Csoergo, T.; Nagy, M. I.; Sziklai, J.; Vertesi, R.] Hungarian Acad Sci MTA KFKI RMKI, KFKI Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary. [Hong, B.; Kim, B. I.; Lee, K. B.; Lee, K. S.; Park, S. K.; Shim, H. H.; Sim, K. S.] Korea Univ, Seoul 136701, South Korea. [Blau, D. S.; Fokin, S. L.; Kazantsev, A. V.; Manko, V. I.; Moukhanova, T. V.; Nyanin, A. S.; Peressounko, D. Yu.; Yushmanov, I. E.] Russian Res Ctr, Kurchatov Inst, Moscow, Russia. [Dairaku, S.; Imai, K.; Karatsu, K.; Murakami, T.; Nakamura, K. R.; Shoji, K.; Tanida, K.] Kyoto Univ, Kyoto 6068502, Japan. [del Valle, Z. Conesa; Drapier, O.; Fleuret, F.; Gonin, M.; de Cassagnac, R. Granier] Ecole Polytech, CNRS IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France. [Glenn, A.; Newby, J.; Soltz, R. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Aidala, C.; Brooks, M. L.; Butsyk, S.; Guo, L.; Jiang, X.; Kapustinsky, J.; Kunde, G. J.; Lee, D. M.; Leitch, M. J.; Liu, H.; Liu, M. X.; McGaughey, P. L.; Sondheim, W. E.; van Hecke, H. W.; You, Z.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Roche, G.] Univ Clermont Ferrand, LPC, CNRS IN2P3, F-63177 Clermont Ferrand, France. [Christiansen, P.; Gustafsson, H-A; Haslum, E.; Oskarsson, A.; Rosendahl, S. S. E.; Stenlund, E.] Lund Univ, Dept Phys, SE-22100 Lund, Sweden. [D'Orazio, L.; Mignerey, A. C.; Richardson, E.] Univ Maryland, College Pk, MD 20742 USA. [Datta, A.; Kawall, D.] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA. [Baumann, C.; Reygers, K.; Sahlmueller, B.; Wessels, J.] Univ Munster, Inst Kernphys, D-48149 Munster, Germany. [Ben-Benjamin, J.; Broxmeyer, D.; Caringi, A.; Fadem, B.; Harper, C.; Lichtenwalner, P.; Motschwiller, S.; Sodre, T.] Muhlenberg Coll, Allentown, PA 18104 USA. [Joo, K. S.; Moon, H. J.] Myongji Univ, Yongin 449728, Kyonggido, South Korea. [Fusayasu, T.; Tanaka, Y.] Nagasaki Inst Appl Sci, Nagasaki 8510193, Japan. [Bassalleck, B.; Fields, D. E.; Younus, I.] Univ New Mexico, Albuquerque, NM 87131 USA. [Al-Ta'ani, H.; Dharmawardane, K. V.; Kyle, G. S.; Papavassiliou, V.; Pate, S. F.; Tennant, E.; Wang, X. R.] New Mexico State Univ, Las Cruces, NM 88003 USA. [Frantz, J. E.] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA. [Awes, T. C.; Cianciolo, V.; Efremenko, Y. V.; Enokizono, A.; Hornback, D.; Read, K. F.; Silvermyr, D.; Stankus, P. W.; Young, G. R.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Jouan, D.] Univ Paris 11, IPN Orsay, CNRS IN2P3, F-91406 Orsay, France. [Han, R.; Mao, Y.; You, Z.] Peking Univ, Beijing 100871, Peoples R China. [Baublis, V.; Ivanischev, D.; Khanzadeev, A.; Kochenda, L.; Komkov, B.; Kotov, D.; Riabov, V.; Riabov, Y.; Samsonov, V.; Vznuzdaev, E.] PNPI, Gatchina 188300, Leningrad Reg, Russia. [Akiba, Y.; Aoki, K.; Dairaku, S.; En'yo, H.; Fukao, Y.; Goto, Y.; Hashimoto, K.; Ichihara, T.; Ichimiya, R.; Ikeda, Y.; Imai, K.; Ishihara, M.; Karatsu, K.; Kasai, M.; Kurita, K.; Kurosawa, M.; Mao, Y.; Miyachi, Y.; Murata, J.; Nakagawa, I.; Nakamura, K. R.; Nakamura, T.; Nakano, K.; Shibata, T. -A.; Shoji, K.; Taketani, A.; Tanida, K.; Watanabe, Y.; Yokkaichi, S.] RIKEN Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan. [Akiba, Y.; Bathe, S.; Boyle, K.; Bunce, G.; Deshpande, A.; En'yo, H.; Goto, Y.; Ichihara, T.; Kawall, D.; Nakagawa, I.; Okada, K.; Seidl, R.; Taketani, A.; Tanida, K.; Togawa, M.; Watanabe, Y.; Yokkaichi, S.] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA. [Hashimoto, K.; Ikeda, Y.; Kasai, M.; Kurita, K.; Murata, J.] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1718501, Japan. [Berdnikov, A.; Berdnikov, Y.] St Petersburg State Polytech Univ, St Petersburg, Russia. [Dietzsch, O.; Donadelli, M.; Leite, M. A. L.; Takagui, E. M.] Univ Sao Paulo, Inst Fis, BR-5315970 Sao Paulo, Brazil. [Tanida, K.] Seoul Natl Univ, Seoul, South Korea. [Ajitanand, N. N.; Alexander, J.; Gong, X.; Jia, J.; Lacey, R.; Taranenko, A.; Wei, R.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Apadula, N.; Bannier, B.; Bennett, R.; Campbell, S.; Castera, P.; Chen, C. -H.; Citron, Z.; Connors, M.; Deshpande, A.; Drees, A.; Durham, J. M.; Hemmick, T. K.; Jacak, B. V.; Kamin, J.; Kaneti, S.; Kline, P.; Lee, S. H.; Manion, A.; McCumber, M.; Means, N.; Nguyen, M.; Pantuev, V.; Petti, R.; Proissl, M.; Savastio, M.; Sun, J.; Taneja, S.; Themann, H.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Garishvili, I.; Hamblen, J.; Read, K. F.; Sorensen, S. P.] Univ Tennessee, Knoxville, TN 37996 USA. [Miyachi, Y.; Shibata, T. -A.] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan. [Chujo, T.; Esumi, S.; Horaguchi, T.; Ikeda, Y.; Inaba, M.; Konno, M.; Masui, H.; Miake, Y.; Miki, K.; Oka, M.; Sato, T.; Shimomura, M.; Tanabe, R.; Watanabe, K.] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 305, Japan. [Appelt, E.; Belmont, R.; Greene, S. V.; Huang, S.; Issah, M.; Love, B.; Maguire, C. F.; Roach, D.; Velkovska, J.] Vanderbilt Univ, Nashville, TN 37235 USA. [Milov, A.; Naglis, M.; Ravinovich, I.; Sharma, D.; Tserruya, I.] Weizmann Inst Sci, IL-76100 Rehovot, Israel. [Bok, J. S.; Choi, I. J.; Kang, J. H.; Kwon, Y.; Lim, S. H.] Yonsei Univ, IPAP, Seoul 120749, South Korea. RP Adare, A (reprint author), Univ Colorado, Boulder, CO 80309 USA. EM jacak@skipper.physics.sunysb.edu RI Taketani, Atsushi/E-1803-2017; Mignerey, Alice/D-6623-2011; seto, richard/G-8467-2011; Csanad, Mate/D-5960-2012; Wei, Feng/F-6808-2012; Yokkaichi, Satoshi/C-6215-2017; Csorgo, Tamas/I-4183-2012; Tomasek, Lukas/G-6370-2014; Blau, Dmitry/H-4523-2012; En'yo, Hideto/B-2440-2015; Hayano, Ryugo/F-7889-2012; HAMAGAKI, HIDEKI/G-4899-2014; Durum, Artur/C-3027-2014; Sorensen, Soren /K-1195-2016 OI Taketani, Atsushi/0000-0002-4776-2315; Tomasek, Lukas/0000-0002-5224-1936; Hayano, Ryugo/0000-0002-1214-7806; Sorensen, Soren /0000-0002-5595-5643 FU Office of Nuclear Physics in DOE Office of Science; NSF (USA); MEXT (Japan); JSPS (Japan); CNPq (Brazil); FAPESP (Brazil); NSFC (China); MSMT (Czech Republic); IN2P3/CNRS (France); CEA (France); BMBF (Germany); DAAD (Germany); AvH (Germany); OTKA (Hungary); DAE (India); DST (India); ISF (Israel); NRF (Korea); WCU (Korea); MES (Russia); RAS (Russia); FAAE (Russia); VR (Sweden); KAW (Sweden); U.S. CRDF for the FSU; Hungary-U.S. HAESF; U.S.-Israel BSF FX We thank the Collider-Accelerator Department for developing the unique technologies enabling these measurements and the Physics Department staff at BNL for vital contributions. We also thank D. de Florian, B. Surrow, and J. Balewski for helpful discussions. We acknowledge support from the Office of Nuclear Physics in DOE Office of Science and NSF (USA), MEXT and JSPS (Japan), CNPq and FAPESP (Brazil), NSFC (China), MSMT (Czech Republic), IN2P3/CNRS and CEA (France), BMBF, DAAD, and AvH (Germany), OTKA (Hungary), DAE and DST (India), ISF (Israel), NRF and WCU (Korea), MES, RAS, and FAAE (Russia), VR and KAW (Sweden), U.S. CRDF for the FSU, Hungary-U.S. HAESF, and U.S.-Israel BSF. NR 27 TC 39 Z9 39 U1 5 U2 18 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 FEB 11 PY 2011 VL 106 IS 6 AR 062001 DI 10.1103/PhysRevLett.106.062001 PG 6 WC Physics, Multidisciplinary SC Physics GA 721LV UT WOS:000287357100007 PM 21405459 ER PT J AU Decremps, F Belhadi, L Farber, DL Moore, KT Occelli, F Gauthier, M Polian, A Antonangeli, D Aracne-Ruddle, CM Amadon, B AF Decremps, F. Belhadi, L. Farber, D. L. Moore, K. T. Occelli, F. Gauthier, M. Polian, A. Antonangeli, D. Aracne-Ruddle, C. M. Amadon, B. TI Diffusionless gamma reversible arrow alpha Phase Transition in Polycrystalline and Single-Crystal Cerium SO PHYSICAL REVIEW LETTERS LA English DT Article ID VOLUME COLLAPSE; MOTT TRANSITION; POINT AB The cerium gamma reversible arrow alpha transition was investigated using high-pressure, high-temperature angle-dispersive x-ray diffraction measurements on both poly-and single-crystalline samples, explicitly addressing symmetry change and transformation paths. The isomorphic hypothesis of the transition is confirmed, with a transition line ending at a solid-solid critical point. The critical exponent is determined, showing a universal behavior that can be pictured as a liquid-gas transition. We further report an isomorphic transition between two single crystals (with more than 14% of volume difference), an unparalleled observation in solid-state matter interpreted in terms of dislocation-induced diffusionless first-order phase transformation. C1 [Decremps, F.; Belhadi, L.; Gauthier, M.; Polian, A.; Antonangeli, D.] Univ Paris 06, IMPMC, F-75252 Paris, France. [Farber, D. L.; Moore, K. T.; Aracne-Ruddle, C. M.] LLNL, Livermore, CA 94550 USA. [Occelli, F.; Amadon, B.] CEA, DAM, DIF, F-91297 Arpajon, France. RP Decremps, F (reprint author), Univ Paris 06, IMPMC, F-75252 Paris, France. RI Farber, Daniel/F-9237-2011; Polian, Alain/E-1555-2017 OI Polian, Alain/0000-0003-2261-9114 FU ANR [ANR-08-BLAN-0109-01] FX We thank C. Denoual for fruitful discussion and M. Hanfland at ESRF for his help with the experiments. This work has been supported by ANR Contract No. ANR-08-BLAN-0109-01. NR 28 TC 32 Z9 32 U1 2 U2 26 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 FEB 11 PY 2011 VL 106 IS 6 AR 065701 DI 10.1103/PhysRevLett.106.065701 PG 4 WC Physics, Multidisciplinary SC Physics GA 721LV UT WOS:000287357100014 PM 21405478 ER PT J AU Sinitsyn, NA Akimov, A Chernyak, VY AF Sinitsyn, Nikolai A. Akimov, Alexei Chernyak, Vladimir Y. TI Supersymmetry and fluctuation relations for currents in closed networks SO PHYSICAL REVIEW E LA English DT Article AB We demonstrate supersymmetry in the counting statistics of stochastic particle currents and use it to derive exact nonperturbative relations for the statistics of currents induced by arbitrarily fast time-dependent protocols. C1 [Sinitsyn, Nikolai A.; Chernyak, Vladimir Y.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Sinitsyn, Nikolai A.; Akimov, Alexei] New Mexico Consortium, Los Alamos, NM 87544 USA. [Akimov, Alexei] Rice Univ, Dept Chem, Houston, TX 77005 USA. [Chernyak, Vladimir Y.] Wayne State Univ, Dept Chem, Detroit, MI 48202 USA. RP Sinitsyn, NA (reprint author), Los Alamos Natl Lab, Div Theoret, B258, Los Alamos, NM 87545 USA. RI Akimov, Alexey/H-9547-2014; Chernyak, Vladimir/F-5842-2016 OI Chernyak, Vladimir/0000-0003-4389-4238 FU National Science Foundation [CHE-0808910, ECCS-0925618]; National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396] FX We are grateful to Misha Chertkov, Jordan Horowitz, and Allan Adler for useful discussions. This material is based upon work supported by the National Science Foundation under CHE-0808910 at WSU, and under ECCS-0925618 at NMC. The work at LANL was carried out under the auspices of the National Nuclear Security Administration of the US Department of Energy at Los Alamos National Laboratory under Contract No. DE-AC52-06NA25396. NR 14 TC 14 Z9 14 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD FEB 11 PY 2011 VL 83 IS 2 AR 021107 DI 10.1103/PhysRevE.83.021107 PN 1 PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 721QO UT WOS:000287369900004 PM 21405818 ER PT J AU Mota, A Zimmerman, JA AF Mota, Alejandro Zimmerman, Jonathan A. TI A variational, finite-deformation constitutive model for piezoelectric materials SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING LA English DT Article DE piezoelectric; finite deformation; variational; vector potential ID SOLID SHELL ELEMENT; MATERIAL FORCES; FORMULATION; PSEUDOMOMENTUM; DIELECTRICS; EQUATIONS; FRACTURE; ENERGY; FIELDS AB We present a constitutive model for piezoelectric materials. The model is fully variational and supports finite kinematics. The postulated free energy depends on the deformation mapping and an electric vector potential, from which the strain and the electric displacement are derived, respectively. The divergence-free condition of the electric vector potential is enforced by means of a penalty method, which leads to a positive definite tangent for the system of equations that represent the problem. The performance of the formulation is demonstrated by several examples. Published in 2010 by John Wiley & Sons, Ltd. C1 [Mota, Alejandro; Zimmerman, Jonathan A.] Sandia Natl Labs, Livermore, CA 94551 USA. RP Mota, A (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA. EM amota@sandia.gov FU Laboratory Directed Research and Development at Sandia National Laboratories; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Support for this work was received through the Laboratory Directed Research and Development program at Sandia National Laboratories. Sandia is a multi-program laboratory operated by Sandia Corporation, a Lockheed-Martin Company, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 27 TC 3 Z9 3 U1 0 U2 2 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0029-5981 EI 1097-0207 J9 INT J NUMER METH ENG JI Int. J. Numer. Methods Eng. PD FEB 11 PY 2011 VL 85 IS 6 BP 752 EP 767 DI 10.1002/nme.2993 PG 16 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Engineering; Mathematics GA 715AL UT WOS:000286852700004 ER PT J AU Sirinupong, N Brunzelle, J Doko, E Yang, Z AF Sirinupong, Nualpun Brunzelle, Joseph Doko, Ernada Yang, Zhe TI Structural Insights into the Autoinhibition and Posttranslational Activation of Histone Methyltransferase SmyD3 SO JOURNAL OF MOLECULAR BIOLOGY LA English DT Article DE tumorigenesis; crystallography; MYND; epigenetics; chromatin modifications ID CANCER-CELLS; FUNCTIONAL-ANALYSIS; MYND DOMAIN; PROTEIN; TARGET; SET7/9; BOP; TRANSCRIPTION; METHYLATION; SPECIFICITY AB The SmyD family represents a new class of chromatin regulators that is important in heart and skeletal muscle development. However, the critical questions regarding how they are regulated posttranslationally remain largely unknown. We previously suggested that the histone methyltransferase activity of SmyD1, a vital myogenic regulator, appears to be regulated by autoinhibition and that the possible hinge motion of the conserved C-terminal domain (CTD) might be central to the maintenance and release of the autoinhibition. However, the lack of direct evidence of the hinge motion has limited our further understanding of this autoinhibitory mechanism. Here, we report the crystal structure of full-length SmyD3 in complex with the methyltransferase inhibitor sinefungin at 1.7 angstrom. SmyD3 has a two-lobed structure with the substrate binding cleft located at the bottom of a 15-angstrom-deep crevice formed between the N- and C-terminal lobes. Comparison of SmyD3 and SmyD1 clearly suggests that the CTD can undergo a large hinge-bending motion that defines two distinct conformations: SmyD3 adopts a closed conformation with the CTD partially blocking the substrate binding cleft; in contrast, SmyD1 appears to represent an open form, where the CTD swings out by similar to 12 angstrom from the N-terminal lobe, forming an open cleft with the active site completely exposed. Overall, these findings provide novel structural insights into the mechanism that modulates the activity of the SmyD proteins and support the observation that a posttranslational activation, such as by molecular chaperon Hsp90, is required to potentiate the proteins. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Sirinupong, Nualpun; Yang, Zhe] Wayne State Univ, Sch Med, Dept Biochem & Mol Biol, Detroit, MI 48201 USA. [Brunzelle, Joseph] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Doko, Ernada] Wayne State Univ, Dept Biol, Detroit, MI 48202 USA. RP Yang, Z (reprint author), 540 E Canfield St, Detroit, MI 48201 USA. EM zyang@med.wayne.edu FU American Heart Association FX This work was supported, in part, by the American Heart Association. NR 29 TC 30 Z9 31 U1 1 U2 17 PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0022-2836 J9 J MOL BIOL JI J. Mol. Biol. PD FEB 11 PY 2011 VL 406 IS 1 BP 149 EP 159 DI 10.1016/j.jmb.2010.12.014 PG 11 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA 720LI UT WOS:000287281800012 PM 21167177 ER PT J AU Muhrer, G Hartl, M Daemen, L Tovesson, F Schnegg, A Russina, M Schachinger, E AF Muhrer, G. Hartl, M. Daemen, L. Tovesson, F. Schnegg, A. Russina, M. Schachinger, E. TI Scattering law of a magnesium hydride moderator SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE Neutron scattering; Neutron moderator; Scattering kernel ID INELASTIC NEUTRON-SCATTERING; VIBRATIONAL-SPECTRUM; JUMP DIFFUSION; SPECTROMETER; DYNAMICS AB Metal hydrides have long been considered possible moderator and pre-moderator materials for neutron sources. These materials have hydrogen density comparable to liquid hydrogen or light water. They usually do not undergo phase transitions in the desired operating range of 0-300 K, and display reasonable resistance to radiation damage. Magnesium hydride is such a simple, robust hydride system. To assess its neutronic usefulness as a moderator material, we determined experimentally the total scattering cross-section of the material. We compared our theoretical results to the experimental total neutron cross-section and to the data from quasi-elastic neutron scattering experiments, and produced a scattering kernel suitable for neutron transport calculations. (C) 2010 Elsevier B.V. All rights reserved. C1 [Muhrer, G.; Hartl, M.; Daemen, L.; Tovesson, F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Schnegg, A.; Russina, M.] Helmholtz Ctr Berlin Mat & Energy, D-14109 Berlin, Germany. [Schachinger, E.] Graz Univ Technol, Inst Theoret & Computat Phys, A-8010 Graz, Austria. [Schachinger, E.] Radiat Phys Grp, A-8010 Graz, Austria. RP Muhrer, G (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM muhrer@lanl.gov RI Lujan Center, LANL/G-4896-2012; Hartl, Monika/F-3094-2014; Russina, Margarita/E-9886-2016; Hartl, Monika/N-4586-2016 OI Hartl, Monika/0000-0002-6601-7273; Russina, Margarita/0000-0003-2067-606X; Hartl, Monika/0000-0002-6601-7273 FU Department of Energy's Office of National Nuclear Security Administration; Department of Energy's Office of Basic Energy Sciences; DOE [DE-AC52-06NA25396] FX This work was supported by Readiness in Technical Base and Facilities (RTBF) which is funded by the Department of Energy's Office of National Nuclear Security Administration. It has benefited from the use of the Manuel Lujan, Jr. Neutron Scattering Center at Los Alamos National Laboratory, which is funded by the Department of Energy's Office of Basic Energy Sciences. Los Alamos National Laboratory is operated by Los Alamos National Security LLC under DOE Contract DE-AC52-06NA25396. NR 31 TC 3 Z9 3 U1 1 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD FEB 11 PY 2011 VL 629 IS 1 BP 251 EP 259 DI 10.1016/j.nima.2010.10.144 PG 9 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 724DK UT WOS:000287556100039 ER PT J AU Cooper, RJ Radford, DC Lagergren, K Colaresi, JF Darken, L Henning, R Marino, MG Yocum, KM AF Cooper, R. J. Radford, D. C. Lagergren, K. Colaresi, James F. Darken, Larry Henning, R. Marino, M. G. Yocum, K. Michael TI A Pulse Shape Analysis technique for the MAJORANA experiment SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article DE HPGe detector; Pulse Shape Analysis; Background rejection; Neutrinoless double beta decay ID HPGE DETECTOR; POSITION SENSITIVITY; GERMANIUM DETECTOR; PROJECT; GERDA; ARRAY AB In order to achieve background count rates sufficiently low so as to allow the observation of rare events such as neutrinoless double beta (0 nu beta beta) decay, background suppression techniques are routinely employed. In this paper we present details of a novel Pulse Shape Analysis algorithm, which allows single-site events such as 0 nu beta beta decay to be distinguished from multi-site background events in germanium detectors. The algorithm, which is based on the event-by-event chi(2) fitting of experimental signals to a basis data set of unique single-site pulse shapes, has been developed through simulation studies and tested experimentally using a Broad Energy Germanium detector. It is found experimentally that the technique is able to successfully identify and reject 99% of multi-site events in the single escape peak associated with the gamma decay of Tl-208, whilst maintaining a survival probability of 98% for neutrinoless double-beta-decay-like double escape peak events. (C) 2010 Elsevier B.V. All rights reserved. C1 [Cooper, R. J.; Lagergren, K.] Oak Ridge Natl Lab, Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA. [Radford, D. C.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Colaresi, James F.; Yocum, K. Michael] Canberra Ind Inc, Meriden, CT 06450 USA. [Darken, Larry] Canberra Ind Inc, Oak Ridge, TN 37830 USA. [Henning, R.] Univ N Carolina, Dept Phys, Chapel Hill, NC 27599 USA. [Marino, M. G.] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA. RP Cooper, RJ (reprint author), Oak Ridge Natl Lab, Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA. EM cooperrj@ornl.gov RI radford, David/A-3928-2015; OI Marino, Michael/0000-0003-1226-6036 FU Office of Nuclear Physics, US Department of Energy; US Department of Energy; National Science Foundation FX Research sponsored by the Office of Nuclear Physics, US Department of Energy. The Joint Institute for Heavy Ion Research has as member institutions: the University of Tennessee, Vanderbilt University and the Oak Ridge National Laboratory; it is supported by the members and by the US Department of Energy. One of the authors is supported by the National Science Foundation. NR 21 TC 18 Z9 18 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD FEB 11 PY 2011 VL 629 IS 1 BP 303 EP 310 DI 10.1016/j.nima.2010.11.029 PG 8 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 724DK UT WOS:000287556100046 ER PT J AU Qiao, L Droubay, TC Varga, T Bowden, ME Shutthanandan, V Zhu, Z Kaspar, TC Chambers, SA AF Qiao, L. Droubay, T. C. Varga, T. Bowden, M. E. Shutthanandan, V. Zhu, Z. Kaspar, T. C. Chambers, S. A. TI Epitaxial growth, structure, and intermixing at the LaAlO3/SrTiO3 interface as the film stoichiometry is varied SO PHYSICAL REVIEW B LA English DT Article ID PULSED-LASER DEPOSITION; THIN-FILMS; KINETIC-ENERGY; SURFACES; HETEROSTRUCTURES; DISTRIBUTIONS; INSULATORS; THICKNESS; TITANATE; ABLATION AB LaAlO3 epitaxial films with La:Al cation ratios ranging from 0.9 to 1.2 were grown on TiO2-terminated SrTiO3 (001) substrates by off-axis pulsed laser deposition. Although all films are epitaxial, rocking curve measurements show that the crystallographic quality degrades with increasing La: Al ratio. Films with La: Al ratios of 0.9, 1.0, and 1.1 were coherently strained to the substrate. However, the out-of-plane lattice parameter increases over this range, revealing a decrease in film tetragonality. Although all film surfaces exhibit hydroxylation, the extent of hydroxylation is greater for the La-rich films. Rutherford backscattering spectrometry reveals that La from the film diffuses deeply into the SrTiO3 substrate and secondary-ion-mass spectroscopy shows unambiguous Sr outdiffusion into the films. C1 [Qiao, L.; Droubay, T. C.; Kaspar, T. C.; Chambers, S. A.] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. [Varga, T.; Bowden, M. E.; Shutthanandan, V.; Zhu, Z.] Pacific NW Natl Lab, Environm & Mol Sci Lab, Richland, WA 99352 USA. RP Qiao, L (reprint author), Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA. EM sa.chambers@pnl.gov RI Qiao, Liang/A-8165-2012; Zhu, Zihua/K-7652-2012; Droubay, Tim/D-5395-2016 OI Droubay, Tim/0000-0002-8821-0322 FU Office of Science, Division of Materials Sciences and Engineering, US Department of Energy; Office of Biological and Environmental Research of the Department of Energy, Pacific Northwest National Laboratory FX This work was supported by the Office of Science, Division of Materials Sciences and Engineering, US Department of Energy, and was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Office of Biological and Environmental Research of the Department of Energy and located at Pacific Northwest National Laboratory. NR 63 TC 55 Z9 55 U1 4 U2 59 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 11 PY 2011 VL 83 IS 8 AR 085408 DI 10.1103/PhysRevB.83.085408 PG 10 WC Physics, Condensed Matter SC Physics GA 721PJ UT WOS:000287366800009 ER PT J AU Tobin, JG Yu, SW Chung, BW Waddill, GD Duda, L Nordgren, J AF Tobin, J. G. Yu, S. W. Chung, B. W. Waddill, G. D. Duda, L. Nordgren, J. TI Observation of strong resonant behavior in the inverse photoelectron spectroscopy of Ce oxide SO PHYSICAL REVIEW B LA English DT Article ID ELECTRONIC-STRUCTURE; PHOTOEMISSION; CERIUM; SURFACE; TRANSITION; OXIDATION; SPECTRA; REGION; STATES; PROBE AB X-ray emission spectroscopy and resonant inverse photoelectron spectroscopy (RIPES) have been used to investigate the photon emission associated with the Ce 3d(5/2) and Ce 3d(3/2) thresholds. Strong resonant behavior has been observed in the RIPES of a Ce oxide near the 5/2 and 3/2 edges. C1 [Tobin, J. G.; Yu, S. W.; Chung, B. W.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Waddill, G. D.] Missouri Univ Sci & Technol, Rolla, MO 65401 USA. [Duda, L.; Nordgren, J.] Uppsala Univ, Uppsala, Sweden. RP Tobin, JG (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM Tobin1@LLNL.Gov RI Chung, Brandon/G-2929-2012; Tobin, James/O-6953-2015 FU US Department of Energy, National Nuclear Security Administration [DE-AC52-07NA27344]; DOE Office of Science, Office of Basic Energy Science, Division of Materials Science and Engineering FX Lawrence Livermore National Laboratory is operated by Lawrence Livermore National Security, LLC, for the US Department of Energy, National Nuclear Security Administration under Contract No. DE-AC52-07NA27344. This work was supported by the DOE Office of Science, Office of Basic Energy Science, Division of Materials Science and Engineering. We would like to thank Emiliana Damian-Risberg for her work on the experiments in Sweden, Jonathan Denlinger for his help with the Beamline 8 experiments at the ALS and Thorsten Schmitt and Jinghua Guo for their mentoring of E.D.-R. NR 37 TC 11 Z9 11 U1 2 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD FEB 11 PY 2011 VL 83 IS 8 AR 085104 DI 10.1103/PhysRevB.83.085104 PG 9 WC Physics, Condensed Matter SC Physics GA 721PJ UT WOS:000287366800002 ER PT J AU Zhang, RF Lin, ZJ Mao, HK Zhao, YS AF Zhang, R. F. Lin, Z. J. Mao, Ho-Kwang Zhao, Yusheng TI Thermodynamic stability and unusual strength of ultra-incompressible rhenium nitrides SO PHYSICAL REVIEW B LA English DT Article ID HIGH-PRESSURE; SUPERHARD MATERIALS; OSMIUM DIBORIDE; HARD MATERIAL; METALS; CARBON AB We report on a comprehensive study of thermodynamic and mechanical properties as well as a bond-deformation mechanism on ultra-incompressible Re(2)N and Re(3)N. The introduction of nitrogen into the rhenium lattice leads to thermodynamic instability in Re(2)N at ambient conditions and enhanced incompressibility and strength for both rhenium nitrides. Rhenium nitrides, however, show substantially lower ideal shear strength than hard ReB(2) and superhard c-BN, suggesting that they cannot be intrinsically superhard. An intriguing soft "ionic bond mediated plastic deformation" mechanism is revealed to underline the physical origin of their unusual mechanical strength. These results suggest a need to reformulate the design concept of intrinsically superhard transition-metal nitrides, borides, and carbides. C1 [Zhang, R. F.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Lin, Z. J.; Mao, Ho-Kwang] Carnegie Inst Washington, Geophys Lab, NW, Washington, DC 20015 USA. [Lin, Z. J.; Zhao, Yusheng] Los Alamos Natl Lab, LANSCE LC, Los Alamos, NM 87545 USA. [Zhao, Yusheng] Univ Nevada, HiPSEC, Las Vegas, NV 89154 USA. RP Zhang, RF (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM zlin@ciw.edu RI Lin, Zhijun/A-5543-2010; Lujan Center, LANL/G-4896-2012; Veprek, Stan/C-1248-2008 OI Veprek, Stan/0000-0002-6016-3093 FU Los Alamos National Security LLC under DOE [DEAC52-06NA25396]; DOE, Office of Science and Basic Energy Sciences [DE-SC0001057]; Los Alamos Director's Postdoctoral Fellowship; US Department of Energy, NNSA [DEFC52-06NA26274] FX We thank Russell J. Hemley, Ronald Cohen, and Jianzhong Zhang for comments on this paper. We would also like to thank S. Veprek for suggestions and support and G. Kresse for valuable advice on the application of VASP. Work at Los Alamos is supported by Los Alamos National Security LLC under DOE Contract No. DEAC52-06NA25396. This work is supported as part of the EFree, an Energy Frontier Research Center funded by the DOE, Office of Science and Basic Energy Sciences (Contract No. DE-SC0001057). R.F. Zhang is also supported by Los Alamos Director's Postdoctoral Fellowship. UNLV HiPSEC is supported by the US Department of Energy, NNSA, under Agreement No. DEFC52-06NA26274. NR 26 TC 39 Z9 39 U1 2 U2 15 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 11 PY 2011 VL 83 IS 6 AR 060101 DI 10.1103/PhysRevB.83.060101 PG 4 WC Physics, Condensed Matter SC Physics GA 721OQ UT WOS:000287364700001 ER PT J AU Kuznetsov, V Polyakov, MV Bellini, V Boiko, T Chebotaryov, S Dho, HS Gervino, G Ghio, F Giusa, A Kim, A Kim, W Mammoliti, F Milman, E Ni, A Perevalova, IA Randieri, C Russo, G Sperduto, ML Sutera, CM Vall, AN AF Kuznetsov, V. Polyakov, M. V. Bellini, V. Boiko, T. Chebotaryov, S. Dho, H. -S. Gervino, G. Ghio, F. Giusa, A. Kim, A. Kim, W. Mammoliti, F. Milman, E. Ni, A. Perevalova, I. A. Randieri, C. Russo, G. Sperduto, M. L. Sutera, C. M. Vall, A. N. TI Evidence for a narrow N*(1685) resonance in quasifree Compton scattering on the neutron SO PHYSICAL REVIEW C LA English DT Article ID ETA-PHOTOPRODUCTION; PROTON; NUCLEON; BARYONS; GRAAL AB The study of quasifree Compton scattering on the neutron in the energy range of E-gamma = 0.75-1.5 GeV is presented. The data reveal a narrow peak at W similar to 1.685 GeV. This result, being considered in conjunction with the recent evidence for a narrow structure at W similar to 1.68 GeV in eta photoproduction on the neutron, suggests the existence of a nucleon resonance with unusual properties: a mass M similar to 1.685 GeV, a narrow width Gamma <= 30 MeV, and the much stronger photoexcitation on the neutron than on the proton. C1 [Kuznetsov, V.; Chebotaryov, S.; Dho, H. -S.; Kim, A.; Kim, W.; Milman, E.; Ni, A.] Kyungpook Natl Univ, Taegu 702701, South Korea. [Kuznetsov, V.] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia. [Polyakov, M. V.] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany. [Polyakov, M. V.] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia. [Bellini, V.; Giusa, A.; Mammoliti, F.; Randieri, C.; Russo, G.; Sperduto, M. L.; Sutera, C. M.] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy. [Bellini, V.; Giusa, A.; Mammoliti, F.; Randieri, C.; Russo, G.; Sperduto, M. L.] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy. [Boiko, T.] Belarusian State Univ, Minsk 220030, Byelarus. [Gervino, G.] Univ Turin, Dipartimento Fis Sperimentale, I-00125 Turin, Italy. [Gervino, G.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Ghio, F.] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy. [Ghio, F.] Inst Super Sanita, I-00161 Rome, Italy. [Kim, A.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Perevalova, I. A.; Vall, A. N.] Irkutsk State Univ, Dept Phys, Irkutsk 664003, Russia. RP Kuznetsov, V (reprint author), Kyungpook Natl Univ, Taegu 702701, South Korea. RI Giusa, Antonio/G-5508-2012; GHIO, FRANCESCO/F-2092-2015; Sperduto, Maria Leda/K-2310-2015; BELLINI, Vincenzo/B-1239-2012 OI Giusa, Antonio/0000-0002-5142-0043; Sperduto, Maria Leda/0000-0003-0290-7397; BELLINI, Vincenzo/0000-0001-6906-7463 FU Ministry of Education, Science and Technology [2010-0013430]; SFB/Transregio 16 (Germany); Russian Ministry for Education and Research [2010-1.5-508-005] FX It is our pleasure to thank the staff of the European Synchrotron Radiation Facility (Grenoble, France) for the stable beam operation during the experimental runs. This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (Grant No. 2010-0013430) and by SFB/Transregio 16 (Germany). The work of M.V.P., I.A.P. and A.N.V. is also supported by Grant No. 2010-1.5-508-005 of the Russian Ministry for Education and Research. The authors are grateful to N. Sverdlova for her comments on the manuscript and to Jiyoung Ha for the administrative support of this work. NR 23 TC 22 Z9 22 U1 0 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD FEB 11 PY 2011 VL 83 IS 2 AR 022201 DI 10.1103/PhysRevC.83.022201 PG 4 WC Physics, Nuclear SC Physics GA 721PS UT WOS:000287367700002 ER PT J AU Berger, J Stasto, AM AF Berger, Jeffrey Stasto, Anna M. TI Numerical solution of the nonlinear evolution equation at small x with impact parameter and beyond the leading logarithmic approximation SO PHYSICAL REVIEW D LA English DT Article ID COLOR GLASS CONDENSATE; ABELIAN Q(Q)OVER-BAR CONTRIBUTIONS; BALITSKY-KOVCHEGOV EQUATION; DEEP-INELASTIC SCATTERING; HIGH-ENERGY SCATTERING; GLUON EVOLUTION; BFKL POMERON; ANOMALOUS DIMENSIONS; SATURATION MOMENTUM; LARGE NUCLEI AB The nonlinear evolution equation at small x with impact parameter dependence is analyzed numerically. The saturation scales and the radius of expansion in the impact parameter are extracted as functions of rapidity. Running coupling is included in this evolution, and it is found that the solution is sensitive to the infrared regularization. Kinematical effects beyond the leading logarithmic approximation are taken partially into account by modifying the kernel which includes the rapidity-dependent cuts. These effects are important for the nonlinear evolution with the impact parameter dependence. C1 [Berger, Jeffrey; Stasto, Anna M.] Penn State Univ, Dept Phys, University Pk, PA 16802 USA. [Stasto, Anna M.] Brookhaven Natl Lab, RIKEN Ctr, Upton, NY 11973 USA. [Stasto, Anna M.] Polish Acad Sci, Inst Nucl Phys, Krakow, Poland. RP Berger, J (reprint author), Penn State Univ, Dept Phys, 104 Davey Lab, University Pk, PA 16802 USA. EM jxb1024@psu.edu; astasto@phys.psu.edu FU MNiSW [N202 249235]; DOE OJI [DE - SC0002145]; Sloan Foundation FX We thank Emil Avsar and Leszek Motyka for interesting discussions. This work was supported by MNiSW Grant No. N202 249235 and the DOE OJI Grant No. DE - SC0002145. A. M. S. is supported by the Sloan Foundation. NR 74 TC 30 Z9 30 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD FEB 11 PY 2011 VL 83 IS 3 AR 034015 DI 10.1103/PhysRevD.83.034015 PG 21 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 721PX UT WOS:000287368200006 ER PT J AU Larkoski, AJ Peskin, ME AF Larkoski, Andrew J. Peskin, Michael E. TI Top quark amplitudes with an anomalous magnetic moment SO PHYSICAL REVIEW D LA English DT Article ID YANG-MILLS THEORY; QUANTUM ELECTRODYNAMICS; INFINITE-MOMENTUM; COUPLINGS; GLUONS AB The anomalous magnetic moment of the top quark may be measured during the first run of the LHC at 7 TeV. For these measurements, it will be useful to have available tree amplitudes with t (t) over bar and arbitrarily many photons and gluons, including both QED and color anomalous magnetic moments. In this paper, we present a method for computing these amplitudes using the Britto-Cachazo-Feng-Witten recursion formula. Because we deal with an effective theory with higher-dimension couplings, there are roadblocks to a direct computation with the Britto-Cachazo-Feng-Witten method. We evade these by using an auxiliary scalar theory to compute a subset of the amplitudes. C1 [Larkoski, Andrew J.; Peskin, Michael E.] Stanford Univ, SLAC, Menlo Pk, CA 94025 USA. RP Larkoski, AJ (reprint author), Stanford Univ, SLAC, Menlo Pk, CA 94025 USA. OI Peskin, Michael/0000-0001-6403-6828 FU U.S. Department of Energy [DE-AC02-76SF00515] FX Work supported by the U.S. Department of Energy, Contract No. DE-AC02-76SF00515. NR 25 TC 6 Z9 6 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 11 PY 2011 VL 83 IS 3 AR 034012 DI 10.1103/PhysRevD.83.034012 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 721PX UT WOS:000287368200003 ER PT J AU Aggarwal, MM Ahammed, Z Alakhverdyants, AV Alekseev, I Alford, J Anderson, BD Anson, CD Arkhipkin, D Averichev, GS Balewski, J Beavis, DR Bellwied, R Betancourt, MJ Betts, RR Bhasin, A Bhati, AK Bichsel, H Bielcik, J Bielcikova, J Biritz, B Bland, LC Borowski, W Bouchet, J Braidot, E Brandin, AV Bridgeman, A Brovko, SG Bruna, E Bueltmann, S Bunzarov, I Burton, TP Cai, XZ Caines, H Sanchez, MCD Cebra, D Cendejas, R Cervantes, MC Chajecki, Z Chaloupka, P Chattopadhyay, S Chen, HF Chen, JH Chen, JY Cheng, J Cherney, M Chikanian, A Choi, KE Christie, W Chung, P Codrington, MJM Corliss, R Cramer, JG Crawford, HJ Dash, S Leyva, AD De Silva, LC Debbe, RR Dedovich, TG Derevschikov, AA de Souza, RD Didenko, L Djawotho, P Dogra, SM Dong, X Drachenberg, JL Draper, JE Dunlop, JC Mazumdar, MRD Efimov, LG Elnimr, M Engelage, J Eppley, G Erazmus, B Estienne, M Eun, L Evdokimov, O Fatemi, R Fedorisin, J Fersch, RG Finch, E Fine, V Fisyak, Y Gagliardi, CA Gangadharan, DR Ganti, MS Geromitsos, A Geurts, F Ghosh, P Gorbunov, YN Gordon, A Grebenyuk, O Grosnick, D Guertin, SM Gupta, A Guryn, W Haag, B Hamed, A Han, LX Harris, JW Hays-Wehle, JP Heinz, M Heppelmann, S Hirsch, A Hjort, E Hoffmann, GW Hofman, DJ Huang, B Huang, HZ Humanic, TJ Huo, L Igo, G Jacobs, P Jacobs, WW Jena, C Jin, F Joseph, J Judd, EG Kabana, S Kang, K Kapitan, J Kauder, K Keane, D Kechechyan, A Kettler, D Kikola, DP Kiryluk, J Kisiel, A Kizka, V Klein, SR Knospe, AG Kocoloski, A Koetke, DD Kollegger, T Konzer, J Koralt, I Koroleva, L Korsch, W Kotchenda, L Kouchpil, V Kravtsov, P Krueger, K Krus, M Kumar, L Kurnadi, P Lamont, MAC Landgraf, JM LaPointe, S Lauret, J Lebedev, A Lednicky, R Lee, CH Lee, JH Leight, W LeVine, MJ Li, C Li, L Li, N Li, W Li, X Li, X Li, Y Li, ZM Lisa, MA Liu, F Liu, H Liu, J Ljubicic, T Llope, WJ Longacre, RS Love, WA Lu, Y Lukashov, EV Luo, X Ma, GL Ma, YG Mahapatra, DP Majka, R Mall, OI Mangotra, LK Manweiler, R Margetis, S Markert, C Masui, H Matis, HS Matulenko, YA McDonald, D McShane, TS Meschanin, A Milner, R Minaev, NG Mioduszewski, S Mischke, A Mitrovski, MK Mohanty, B Mondal, MM Morozov, B Morozov, DA Munhoz, MG Naglis, M Nandi, BK Nayak, TK Netrakanti, PK Ng, MJ Nogach, LV Nurushev, SB Odyniec, G Ogawa, A Ohlson, A Okorokov, V Oldag, EW Olson, D Pachr, M Page, BS Pal, SK Pandit, Y Panebratsev, Y Pawlak, T Peitzmann, T Perkins, C Peryt, W Phatak, SC Pile, P Planinic, M Ploskon, MA Pluta, J Plyku, D Poljak, N Poskanzer, AM Potukuchi, BVKS Powell, CB Prindle, D Pruneau, C Pruthi, NK Pujahari, PR Putschke, J Qiu, H Raniwala, R Raniwala, S Ray, RL Redwine, R Reed, R Ritter, HG Roberts, JB Rogachevskiy, OV Romero, JL Rose, A Ruan, L Sakai, S Sakrejda, I Sakuma, T Salur, S Sandweiss, J Sangaline, E Schambach, J Scharenberg, RP Schmah, AM Schmitz, N Schuster, TR Seele, J Seger, J Selyuzhenkov, I Seyboth, P Shahaliev, E Shao, M Sharma, M Shi, SS Sichtermann, EP Simon, F Singaraju, RN Skoby, MJ Smirnov, N Sorensen, P Spinka, HM Srivastava, B Stanislaus, TDS Staszak, D Stevens, JR Stock, R Strikhanov, M Stringfellow, B Suaide, AAP Suarez, MC Subba, NL Sumbera, M Sun, XM Sun, Y Sun, Z Surrow, B Svirida, DN Symons, TJM de Toledo, AS Takahashi, J Tang, AH Tang, Z Tarini, LH Tarnowsky, T Thein, D Thomas, JH Tian, J Timmins, AR Timoshenko, S Tlusty, D Tokarev, M Trainor, TA Tram, VN Trentalange, S Tribble, RE Tsai, OD Ullrich, T Underwood, DG Van Buren, G van Leeuwen, M van Nieuwenhuizen, G Vanfossen, JA Varma, R Vasconcelos, GMS Vasiliev, AN Videbk, F Viyogi, YP Vokal, S Voloshin, SA Wada, M Walker, M Wang, F Wang, G Wang, H Wang, JS Wang, Q Wang, XL Wang, Y Webb, G Webb, JC Westfall, GD Whitten, C Wieman, H Wissink, SW Witt, R Wu, YF Xie, W Xu, H Xu, N Xu, QH Xu, W Xu, Y Xu, Z Xue, L Yang, Y Yepes, P Yip, K Yoo, IK Yue, Q Zawisza, M Zbroszczyk, H Zhan, W Zhang, JB Zhang, S Zhang, WM Zhang, XP Zhang, Y Zhang, ZP Zhao, J Zhong, C Zhou, W Zhu, X Zhu, YH Zoulkarneev, R Zoulkarneeva, Y AF Aggarwal, M. M. Ahammed, Z. Alakhverdyants, A. V. Alekseev, I. Alford, J. Anderson, B. D. Anson, C. D. Arkhipkin, D. Averichev, G. S. Balewski, J. Beavis, D. R. Bellwied, R. Betancourt, M. J. Betts, R. R. Bhasin, A. Bhati, A. K. Bichsel, H. Bielcik, J. Bielcikova, J. Biritz, B. Bland, L. C. Borowski, W. Bouchet, J. Braidot, E. Brandin, A. V. Bridgeman, A. Brovko, S. G. Bruna, E. Bueltmann, S. Bunzarov, I. Burton, T. P. Cai, X. Z. Caines, H. de la Barca Sanchez, M. Calderon Cebra, D. Cendejas, R. Cervantes, M. C. Chajecki, Z. Chaloupka, P. Chattopadhyay, S. Chen, H. F. Chen, J. H. Chen, J. Y. Cheng, J. Cherney, M. Chikanian, A. Choi, K. E. Christie, W. Chung, P. Codrington, M. J. M. Corliss, R. Cramer, J. G. Crawford, H. J. Dash, S. Leyva, A. Davila De Silva, L. C. Debbe, R. R. Dedovich, T. G. Derevschikov, A. A. Derradi de Souza, R. Didenko, L. Djawotho, P. Dogra, S. M. Dong, X. Drachenberg, J. L. Draper, J. E. Dunlop, J. C. Mazumdar, M. R. Dutta Efimov, L. G. Elnimr, M. Engelage, J. Eppley, G. Erazmus, B. Estienne, M. Eun, L. Evdokimov, O. Fatemi, R. Fedorisin, J. Fersch, R. G. Finch, E. Fine, V. Fisyak, Y. Gagliardi, C. A. Gangadharan, D. R. Ganti, M. S. Geromitsos, A. Geurts, F. Ghosh, P. Gorbunov, Y. N. Gordon, A. Grebenyuk, O. Grosnick, D. Guertin, S. M. Gupta, A. Guryn, W. Haag, B. Hamed, A. Han, L-X. Harris, J. W. Hays-Wehle, J. P. Heinz, M. Heppelmann, S. Hirsch, A. Hjort, E. Hoffmann, G. W. Hofman, D. J. Huang, B. Huang, H. Z. Humanic, T. J. Huo, L. Igo, G. Jacobs, P. Jacobs, W. W. Jena, C. Jin, F. Joseph, J. Judd, E. G. Kabana, S. Kang, K. Kapitan, J. Kauder, K. Keane, D. Kechechyan, A. Kettler, D. Kikola, D. P. Kiryluk, J. Kisiel, A. Kizka, V. Klein, S. R. Knospe, A. G. Kocoloski, A. Koetke, D. D. Kollegger, T. Konzer, J. Koralt, I. Koroleva, L. Korsch, W. Kotchenda, L. Kouchpil, V. Kravtsov, P. Krueger, K. Krus, M. Kumar, L. Kurnadi, P. Lamont, M. A. C. Landgraf, J. M. LaPointe, S. Lauret, J. Lebedev, A. Lednicky, R. Lee, C-H. Lee, J. H. Leight, W. LeVine, M. J. Li, C. Li, L. Li, N. Li, W. Li, X. Li, X. Li, Y. Li, Z. M. Lisa, M. A. Liu, F. Liu, H. Liu, J. Ljubicic, T. Llope, W. J. Longacre, R. S. Love, W. A. Lu, Y. Lukashov, E. V. Luo, X. Ma, G. L. Ma, Y. G. Mahapatra, D. P. Majka, R. Mall, O. I. Mangotra, L. K. Manweiler, R. Margetis, S. Markert, C. Masui, H. Matis, H. S. Matulenko, Yu. A. McDonald, D. McShane, T. S. Meschanin, A. Milner, R. Minaev, N. G. Mioduszewski, S. Mischke, A. Mitrovski, M. K. Mohanty, B. Mondal, M. M. Morozov, B. Morozov, D. A. Munhoz, M. G. Naglis, M. Nandi, B. K. Nayak, T. K. Netrakanti, P. K. Ng, M. J. Nogach, L. V. Nurushev, S. B. Odyniec, G. Ogawa, A. Ohlson, A. Okorokov, V. Oldag, E. W. Olson, D. Pachr, M. Page, B. S. Pal, S. K. Pandit, Y. Panebratsev, Y. Pawlak, T. Peitzmann, T. Perkins, C. Peryt, W. Phatak, S. C. Pile, P. Planinic, M. Ploskon, M. A. Pluta, J. Plyku, D. Poljak, N. Poskanzer, A. M. Potukuchi, B. V. K. S. Powell, C. B. Prindle, D. Pruneau, C. Pruthi, N. K. Pujahari, P. R. Putschke, J. Qiu, H. Raniwala, R. Raniwala, S. Ray, R. L. Redwine, R. Reed, R. Ritter, H. G. Roberts, J. B. Rogachevskiy, O. V. Romero, J. L. Rose, A. Ruan, L. Sakai, S. Sakrejda, I. Sakuma, T. Salur, S. Sandweiss, J. Sangaline, E. Schambach, J. Scharenberg, R. P. Schmah, A. M. Schmitz, N. Schuster, T. R. Seele, J. Seger, J. Selyuzhenkov, I. Seyboth, P. Shahaliev, E. Shao, M. Sharma, M. Shi, S. S. Sichtermann, E. P. Simon, F. Singaraju, R. N. Skoby, M. J. Smirnov, N. Sorensen, P. Spinka, H. M. Srivastava, B. Stanislaus, T. D. S. Staszak, D. Stevens, J. R. Stock, R. Strikhanov, M. Stringfellow, B. Suaide, A. A. P. Suarez, M. C. Subba, N. L. Sumbera, M. Sun, X. M. Sun, Y. Sun, Z. Surrow, B. Svirida, D. N. Symons, T. J. M. Szanto de Toledo, A. Takahashi, J. Tang, A. H. Tang, Z. Tarini, L. H. Tarnowsky, T. Thein, D. Thomas, J. H. Tian, J. Timmins, A. R. Timoshenko, S. Tlusty, D. Tokarev, M. Trainor, T. A. Tram, V. N. Trentalange, S. Tribble, R. E. Tsai, O. D. Ullrich, T. Underwood, D. G. Van Buren, G. van Leeuwen, M. van Nieuwenhuizen, G. Vanfossen, J. A. Varma, R., Jr. Vasconcelos, G. M. S. Vasiliev, A. N. Videbk, F. Viyogi, Y. P. Vokal, S. Voloshin, S. A. Wada, M. Walker, M. Wang, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. L. Wang, Y. Webb, G. Webb, J. C. Westfall, G. D. Whitten, C., Jr. Wieman, H. Wissink, S. W. Witt, R. Wu, Y. F. Xie, W. Xu, H. Xu, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xue, L. Yang, Y. Yepes, P. Yip, K. Yoo, I-K. Yue, Q. Zawisza, M. Zbroszczyk, H. Zhan, W. Zhang, J. B. Zhang, S. Zhang, W. M. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhao, J. Zhong, C. Zhou, W. Zhu, X. Zhu, Y. H. Zoulkarneev, R. Zoulkarneeva, Y. CA STAR Collaboration TI Measurement of the Parity-Violating Longitudinal Single-Spin Asymmetry for W-+/- Boson Production in Polarized Proton-Proton Collisions at root s=500 GeV SO PHYSICAL REVIEW LETTERS LA English DT Article ID ELECTROMAGNETIC CALORIMETER; DISTRIBUTIONS; PHYSICS AB We report the first measurement of the parity-violating single-spin asymmetries for midrapidity decay positrons and electrons from W+ and W- boson production in longitudinally polarized proton-proton collisions at root s = 500 GeV by the STAR experiment at RHIC. The measured asymmetries, A(L)(W+) = -0.27 +/- 0.10(stat.) +/- 0.02(syst.) +/- 0.03(norm.) and A(L)(W-) = 0.14 +/- 0.19(stat.) +/- 0.02(syst.) +/- 0.01(norm.), are consistent with theory predictions, which are large and of opposite sign. These predictions are based on polarized quark and antiquark distribution functions constrained by polarized deep-inelastic scattering measurements. C1 [Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.] Panjab Univ, Chandigarh 160014, India. [Bridgeman, A.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA. [Arkhipkin, D.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; Didenko, L.; Dunlop, J. C.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ogawa, A.; Pile, P.; Ruan, L.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbk, F.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Crawford, H. J.; Engelage, J.; Judd, E. G.; Ng, M. J.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Brovko, S. G.; de la Barca Sanchez, M. Calderon; Cebra, D.; Draper, J. E.; Haag, B.; Liu, H.; Mall, O. I.; Reed, R.; Romero, J. L.; Salur, S.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA. [Biritz, B.; Cendejas, R.; Guertin, S. M.; Huang, H. Z.; Igo, G.; Kurnadi, P.; Staszak, D.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil. [Betts, R. R.; Evdokimov, O.; Hofman, D. J.; Kauder, K.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA. [Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA. [Bielcik, J.; Krus, M.; Pachr, M.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic. [Bielcikova, J.; Chaloupka, P.; Chung, P.; Kapitan, J.; Kouchpil, V.; Sumbera, M.; Tlusty, D.] Nucl Phys Inst AS CR, Rez 25068, Czech Republic. [Kollegger, T.; Mitrovski, M. K.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, Frankfurt, Germany. [Dash, S.; Jena, C.; Mahapatra, D. P.; Phatak, S. C.] Inst Phys, Bhubaneswar 751005, Orissa, India. [Nandi, B. K.; Pujahari, P. R.; Varma, R., Jr.] Indian Inst Technol, Bombay 400076, Maharashtra, India. [Jacobs, W. W.; Page, B. S.; Selyuzhenkov, I.; Stevens, J. R.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA. [Alekseev, I.; Koroleva, L.; Morozov, B.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia. [Bhasin, A.; Dogra, S. M.; Gupta, A.; Mangotra, L. K.; Potukuchi, B. V. K. S.] Univ Jammu, Jammu 180001, India. [Alakhverdyants, A. V.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Kechechyan, A.; Kizka, V.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Tokarev, M.; Vokal, S.; Zoulkarneev, R.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia. [Alford, J.; Anderson, B. D.; Bouchet, J.; Joseph, J.; Keane, D.; Kumar, L.; Margetis, S.; Pandit, Y.; Subba, N. L.; Vanfossen, J. A.; Zhang, W. M.] Kent State Univ, Kent, OH 44242 USA. [Fatemi, R.; Fersch, R. G.; Korsch, W.; Webb, G.] Univ Kentucky, Lexington, KY 40506 USA. [Qiu, H.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.; Zhan, W.] Inst Modern Phys, Lanzhou, Peoples R China. [Ahammed, Z.; Dong, X.; Grebenyuk, O.; Hjort, E.; Jacobs, P.; Kikola, D. P.; Kiryluk, J.; Klein, S. R.; Masui, H.; Matis, H. S.; Naglis, M.; Odyniec, G.; Olson, D.; Ploskon, M. A.; Poskanzer, A. M.; Powell, C. B.; Ritter, H. G.; Rose, A.; Sakai, S.; Sakrejda, I.; Schmah, A. M.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Tram, V. N.; Wieman, H.; Xu, N.; Zhang, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Kocoloski, A.; Leight, W.; Milner, R.; Redwine, R.; Sakuma, T.; Seele, J.; Surrow, B.; van Nieuwenhuizen, G.; Walker, M.] MIT, Cambridge, MA 02139 USA. [Schmitz, N.; Seyboth, P.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Tarnowsky, T.; Wang, H.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA. [Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Lukashov, E. V.; Okorokov, V.; Strikhanov, M.; Timoshenko, S.] Moscow Engn Phys Inst, Moscow 115409, Russia. [Braidot, E.; Mischke, A.; Peitzmann, T.; van Leeuwen, M.] NIKHEF, Amsterdam, Netherlands. [Braidot, E.; Mischke, A.; Peitzmann, T.; van Leeuwen, M.] Univ Utrecht, Amsterdam, Netherlands. [Anson, C. D.; Chajecki, Z.; Gangadharan, D. R.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA. [Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA. [Eun, L.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA. [Derevschikov, A. A.; Matulenko, Yu. A.; Meschanin, A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia. [Hirsch, A.; Konzer, J.; Li, X.; Netrakanti, P. K.; Scharenberg, R. P.; Skoby, M. J.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.] Purdue Univ, W Lafayette, IN 47907 USA. [Choi, K. E.; Lee, C-H.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea. [Raniwala, R.; Raniwala, S.] Univ Rajasthan, Jaipur 302004, Rajasthan, India. [Eppley, G.; Geurts, F.; Liu, J.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Yepes, P.] Rice Univ, Houston, TX 77251 USA. [Munhoz, M. G.; Suaide, A. A. P.; Szanto de Toledo, A.] Univ Sao Paulo, Sao Paulo, Brazil. [Chen, H. F.; Huang, B.; Li, C.; Lu, Y.; Luo, X.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Li, X.; Xu, Q. H.; Zhou, W.] Shandong Univ, Jinan 250100, Shandong, Peoples R China. [Cai, X. Z.; Chen, J. H.; Han, L-X.; Jin, F.; Li, W.; Ma, G. L.; Ma, Y. G.; Tian, J.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. [Borowski, W.; Erazmus, B.; Estienne, M.; Geromitsos, A.; Kabana, S.] SUBATECH, Nantes, France. [Cervantes, M. C.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA. [Leyva, A. Davila; Hoffmann, G. W.; Li, L.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA. [Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Yue, Q.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China. [Witt, R.] USN Acad, Annapolis, MD 21402 USA. [Grosnick, D.; Koetke, D. D.; Manweiler, R.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA. [Chattopadhyay, S.; Mazumdar, M. R. Dutta; Ganti, M. S.; Ghosh, P.; Mohanty, B.; Mondal, M. M.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India. [Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland. [Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.; Trainor, T. A.] Univ Washington, Seattle, WA 98195 USA. [Bellwied, R.; De Silva, L. C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Sharma, M.; Tarini, L. H.; Timmins, A. R.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA. [Chen, J. Y.; Li, N.; Li, Z. M.; Liu, F.; Shi, S. S.; Wu, Y. F.; Zhang, J. B.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China. [Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Heinz, M.; Knospe, A. G.; Majka, R.; Ohlson, A.; Putschke, J.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA. [Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia. RP Aggarwal, MM (reprint author), Panjab Univ, Chandigarh 160014, India. RI Alekseev, Igor/J-8070-2014; Sumbera, Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Bruna, Elena/C-4939-2014; Dogra, Sunil /B-5330-2013; Chaloupka, Petr/E-5965-2012; Huang, Bingchu/H-6343-2015; Derradi de Souza, Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma, Yu-Gang/M-8122-2013; Mischke, Andre/D-3614-2011; Takahashi, Jun/B-2946-2012; Planinic, Mirko/E-8085-2012; Peitzmann, Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Bielcikova, Jana/G-9342-2014; Xu, Wenqin/H-7553-2014; Yip, Kin/D-6860-2013; Xue, Liang/F-8077-2013; Voloshin, Sergei/I-4122-2013; Pandit, Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Yang, Yanyun/B-9485-2014 OI Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323; Strikhanov, Mikhail/0000-0003-2586-0405; Bruna, Elena/0000-0001-5427-1461; Huang, Bingchu/0000-0002-3253-3210; Derradi de Souza, Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; Okorokov, Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900; Bhasin, Anju/0000-0002-3687-8179; Takahashi, Jun/0000-0002-4091-1779; Peitzmann, Thomas/0000-0002-7116-899X; Xu, Wenqin/0000-0002-5976-4991; Yip, Kin/0000-0002-8576-4311; Xue, Liang/0000-0002-2321-9019; Pandit, Yadav/0000-0003-2809-7943; Yang, Yanyun/0000-0002-5982-1706 FU RHIC Operations Group at BNL; RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium; Offices of NP and HEP within the U.S. DOE Office of Science; U.S. NSF; Sloan Foundation; DFG "Origin and Structure of the Universe" of Germany; CNRS/IN2P3; FAPESP CNPq of Brazil; Ministry of Ed. and Sci. of the Russian Federation; NNSFC of China; CAS of China; MoST of China; MoE of China; GA of the Czech Republic; MSMT of the Czech Republic; FOM of the Netherlands; NWO of the Netherlands; DAE of India; DST of India; CSIR of India; Polish Ministry of Sci. and Higher Ed.; Korea Research Foundation; Ministry of Sci., Ed. and Sports of the Rep. Of Croatia; RosAtom of Russia FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. We are grateful to D. de Florian, P. Nadolsky, and W. Vogelsang for useful discussions. This work was supported in part by the Offices of NP and HEP within the U.S. DOE Office of Science, the U.S. NSF, the Sloan Foundation, the DFG cluster of excellence "Origin and Structure of the Universe" of Germany, CNRS/IN2P3, FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of the Russian Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT of the Czech Republic, FOM and NWO of the Netherlands, DAE, DST, and CSIR of India, Polish Ministry of Sci. and Higher Ed., Korea Research Foundation, Ministry of Sci., Ed. and Sports of the Rep. Of Croatia, and RosAtom of Russia. NR 23 TC 33 Z9 33 U1 0 U2 12 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 FEB 11 PY 2011 VL 106 IS 6 AR 062002 DI 10.1103/PhysRevLett.106.062002 PG 6 WC Physics, Multidisciplinary SC Physics GA 721LV UT WOS:000287357100008 PM 21405460 ER PT J AU Fernandes, RM Schmalian, J AF Fernandes, Rafael M. Schmalian, Joerg TI Complex Critical Exponents for Percolation Transitions in Josephson-Junction Arrays, Antiferromagnets, and Interacting Bosons SO PHYSICAL REVIEW LETTERS LA English DT Article AB We show that the critical behavior of the XY quantum-rotor model undergoing a percolation transition is dramatically affected by its topological Berry phase 2 pi rho. In particular, for irrational rho, its low-energy excitations emerge as spinless fermions with fractal spectrum. As a result, critical properties not captured by the usual Ginzburg-Landau-Wilson description of phase transitions arise, such as complex critical exponents, log-periodic oscillations and dynamically broken scale invariance. C1 [Fernandes, Rafael M.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Fernandes, RM (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RI Schmalian, Joerg/H-2313-2011; Fernandes, Rafael/E-9273-2010 FU U.S. DOE, Office of BES, Materials Sciences and Engineering Division FX We thank M. Axenovich for pointing out Ref. [20] to us. This research was supported by the U.S. DOE, Office of BES, Materials Sciences and Engineering Division. NR 23 TC 5 Z9 5 U1 0 U2 7 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 FEB 11 PY 2011 VL 106 IS 6 AR 067004 DI 10.1103/PhysRevLett.106.067004 PG 4 WC Physics, Multidisciplinary SC Physics GA 721LV UT WOS:000287357100019 PM 21405488 ER PT J AU Chen, XB Liu, L Yu, PY Mao, SS AF Chen, Xiaobo Liu, Lei Yu, Peter Y. Mao, Samuel S. TI Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals SO SCIENCE LA English DT Article ID INITIO MOLECULAR-DYNAMICS; VISIBLE-LIGHT; SURFACE SCIENCE; METALS; NANOMATERIALS; OXIDES AB When used as a photocatalyst, titanium dioxide (TiO2) absorbs only ultraviolet light, and several approaches, including the use of dopants such as nitrogen, have been taken to narrow the band gap of TiO2. We demonstrated a conceptually different approach to enhancing solar absorption by introducing disorder in the surface layers of nanophase TiO2 through hydrogenation. We showed that disorder-engineered TiO2 nanocrystals exhibit substantial solar-driven photocatalytic activities, including the photo-oxidation of organic molecules in water and the production of hydrogen with the use of a sacrificial reagent. C1 [Chen, Xiaobo; Liu, Lei; Yu, Peter Y.; Mao, Samuel S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Chen, Xiaobo; Mao, Samuel S.] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. [Liu, Lei; Yu, Peter Y.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. RP Mao, SS (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM ssmao@lbl.gov FU Office of Energy Efficiency and Renewable Energy of the U.S. Department of Energy; King Abdullah University of Science and Technology-University of California Academic Excellence Alliance; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy FX We thank M. S. Dresselhaus for encouragement, M. T. Lee and S. H. Shen for their assistance, and R. Greif for discussions and critical reading of the manuscript. This research has been supported by the Office of Energy Efficiency and Renewable Energy of the U.S. Department of Energy. S.S.M. and X.C. also acknowledge support from the King Abdullah University of Science and Technology-University of California Academic Excellence Alliance. TEM work was performed at the National Center for Electron Microscopy, which is supported by the Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy. NR 24 TC 1959 Z9 1998 U1 394 U2 2126 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 EI 1095-9203 J9 SCIENCE JI Science PD FEB 11 PY 2011 VL 331 IS 6018 BP 746 EP 750 DI 10.1126/science.1200448 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 719LH UT WOS:000287205700064 PM 21252313 ER PT J AU Roberts, HLL Chang, L Roberts, CD AF Roberts, H. L. L. Chang, L. Roberts, C. D. TI IMPACT OF DYNAMICAL CHIRAL SYMMETRY BREAKING ON MESON STRUCTURE AND INTERACTIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article; Proceedings Paper CT 11th International Workshop on Meson Production, Properties and Interaction CY JUN 10-15, 2010 CL Krakow, POLAND DE Confinement; dynamical chiral symmetry breaking; Dyson-Schwinger equations; light-front methods; meson spectrum ID PION FORM-FACTOR; CONFINEMENT; PHYSICS; QCD AB We provide a glimpse of recent progress in meson physics made via QCD's Dyson-Schwinger equations with: a perspective on confinement and dynamical chiral symmetry breaking (DCSB); a precis on the physics of in-hadron condensates; results for the masses of the pi, sigma, rho, alpha(1) mesons and their first-radial excitations; and an illustration of the impact of DCSB on the pion form factor. C1 [Roberts, H. L. L.; Roberts, C. D.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Roberts, H. L. L.; Roberts, C. D.] Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany. [Chang, L.] Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China. [Roberts, C. D.] Peking Univ, Dept Phys, Beijing 100871, Peoples R China. RP Roberts, HLL (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. EM cdroberts@anl.gov OI Roberts, Craig/0000-0002-2937-1361 NR 26 TC 2 Z9 2 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0217-751X J9 INT J MOD PHYS A JI Int. J. Mod. Phys. A PD FEB 10 PY 2011 VL 26 IS 3-4 BP 371 EP 377 DI 10.1142/S0217751X11051688 PG 7 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 723TL UT WOS:000287529800007 ER PT J AU Guryn, W AF Guryn, Wlodek CA STAR Collaboration TI PRESENT AND FUTURE OF CENTRAL PRODUCTION WITH STAR DETECTOR AT RHIC SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article; Proceedings Paper CT 11th International Workshop on Meson Production, Properties and Interaction CY JUN 10-15, 2010 CL Krakow, POLAND DE Exotic mesons; glueballs; central production; double Pomeron exchange ID CERN OMEGA-SPECTROMETER; POMERON; COLLISIONS; ENERGIES AB The present status and future physics program of Central Production using the STAR detector at RHIC will be described. The program focuses on particle production resulting from the Double Pomeron Exchange (DPE) process. Forward protons from the DPE interaction are detected in the Roman Pot system installed at 55.5 m and 58.5 m on both sides of the STAR interaction point. The recoil system of charged particles from the DPE process is measured in the STAR Time Projection Chamber (TPC). The first data were taken in 2009 during the RHIC-Run 9 using polarized proton-proton collisions at root s = 200 GeV. The preliminary spectra of two pion and four pion invariant mass reconstructed by STAR TPC in central region of pseudo-rapidity vertical bar eta vertical bar < 1, are presented. Plans to take data with the current system at root s = 500 GeV and plans to upgrade the forward proton tagging system, so that it can reach higher masses and obtain large data samples in searching for glueballs that could be produced in the DPE process, are also discussed. C1 Brookhaven Natl Lab, Upton, NY 11973 USA. RP Guryn, W (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM guryn@bnl.gov NR 18 TC 0 Z9 0 U1 3 U2 10 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0217-751X J9 INT J MOD PHYS A JI Int. J. Mod. Phys. A PD FEB 10 PY 2011 VL 26 IS 3-4 BP 408 EP 413 DI 10.1142/S0217751X11051743 PG 6 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 723TL UT WOS:000287529800013 ER PT J AU Wood, SA AF Wood, Stephen A. TI PROBING NUCLEON STRUCTURE WITH MESON ELECTRO-PRODUCTION IN HALL C SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article; Proceedings Paper CT 11th International Workshop on Meson Production, Properties and Interaction CY JUN 10-15, 2010 CL Krakow, POLAND DE JLab; SIDIS; QCD; meson production ID PARTON DISTRIBUTIONS; TRANSVERSE-MOMENTUM; PION AB Meson electro-production is used in Hall C at Jefferson Lab to probe nucleon, baryon and nuclear structure. The experimental program in Hall C includes studies of semi-inclusive pion production, p, d(e, e'pi(+/-))X, where low energy factorization has been observed, suggesting that these reactions can be used to probe nucleon structure, including transverse momentum distributions of quarks, at energies available at JLab after the upcoming 12 GeV upgrade. C1 Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23602 USA. RP Wood, SA (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23602 USA. EM saw@jlab.org NR 11 TC 0 Z9 0 U1 0 U2 1 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0217-751X J9 INT J MOD PHYS A JI Int. J. Mod. Phys. A PD FEB 10 PY 2011 VL 26 IS 3-4 BP 450 EP 455 DI 10.1142/S0217751X11051810 PG 6 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 723TL UT WOS:000287529800020 ER PT J AU Burkert, VD AF Burkert, Volker D. TI MESON PRODUCTION AND BARYON RESONANCES AT CLAS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article; Proceedings Paper CT 11th International Workshop on Meson Production, Properties and Interaction CY JUN 10-15, 2010 CL Krakow, POLAND DE Baryon resonances; photoproduction; transition form factors; polarization ID ROPER RESONANCE; TRANSITION AB I give a brief overview of the exploration of baryon properties in meson photo- and electroproduction. These processes provide ample information for the study of electromagnetic couplings of baryon resonances and to search for states, yet to be discovered. The CLAS detector, combined with the use of energy-tagged polarized photons and polarized electrons, as well as polarized targets and the measurement of recoil polarization, provide the tools for a comprehensive nucleon resonance program. I briefly present the status of this program, prospects for the next few years, and plans for the Jefferson Lab 12 GeV upgrade. C1 Jefferson Lab, Newport News, VA USA. RP Burkert, VD (reprint author), Jefferson Lab, 12000 Jefferson Ave,12000 Jefferson, Newport News, VA USA. EM burkert@jlab.org NR 49 TC 2 Z9 2 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0217-751X EI 1793-656X J9 INT J MOD PHYS A JI Int. J. Mod. Phys. A PD FEB 10 PY 2011 VL 26 IS 3-4 BP 493 EP 498 DI 10.1142/S0217751X11051883 PG 6 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 723TL UT WOS:000287529800027 ER PT J AU Wood, MH Nasseripour, R Paolone, M Djalali, C Weygand, DP AF Wood, M. H. Nasseripour, R. Paolone, M. Djalali, C. Weygand, D. P. CA CLAS Collaboration TI MESONS IN THE MEDIUM: EXPERIMENTS WITH CLAS AT JEFFERSON LAB SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article; Proceedings Paper CT 11th International Workshop on Meson Production, Properties and Interaction CY JUN 10-15, 2010 CL Krakow, POLAND DE Medium modifications; nuclear transparency ID PHI-PHOTOPRODUCTION; KAON CONDENSATION; MATTER; NUCLEI AB In this article, we report on on investigations of the in-medium meson-nucleon interaction for the omega, phi, and K(s)(0) mesons. Their in-medium cross sections and collisional widths can be measured by their absorption in a nucleus. In Hall B at the Thomas Jefferson National Accelerator Facility (JLab), the CLAS detector was used to study these long-lived mesons in nuclei. All of the mesons were produced by a photon beam with E(gamma) < 4 GeV in targets of (2)H, C, Fe, and Pb. The vector mesons were reconstructed through their decay into e(+)e(-). The K(s)(0) mesons were measured with their dominant pi(+)pi(-) decay. The in-medium widths of the omega and phi mesons are found to be substantially larger than their values from the elementary reaction with a free nucleon. The analysis with the K(s)(0) is preliminary, and its status will be discussd in this paper C1 [Wood, M. H.] Canisius Coll, Buffalo, NY 14208 USA. [Nasseripour, R.] George Washington Univ, Washington, DC 20052 USA. [Paolone, M.; Djalali, C.] Univ S Carolina, Columbia, SC 29208 USA. [Weygand, D. P.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. RP Wood, MH (reprint author), Canisius Coll, 2001 Main St, Buffalo, NY 14208 USA. EM wood5@canisius.edu NR 28 TC 1 Z9 1 U1 0 U2 1 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0217-751X J9 INT J MOD PHYS A JI Int. J. Mod. Phys. A PD FEB 10 PY 2011 VL 26 IS 3-4 BP 734 EP 736 DI 10.1142/S0217751X11052682 PG 3 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 723TL UT WOS:000287529800107 ER PT J AU Weygand, DP AF Weygand, Dennis P. TI THE STATUS OF MESONIC EXOTICA SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article; Proceedings Paper CT 11th International Workshop on Meson Production, Properties and Interaction CY JUN 10-15, 2010 CL Krakow, POLAND DE Meson spectroscopy; exotic meson ID 18 GEV/C AB Over twenty years ago QCD-inspired models of hadronic states began a rigorous search for meson outside of Naive Quark Model. Here we briefly review the current status of Exotica. C1 [Weygand, Dennis P.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA USA. RP Weygand, DP (reprint author), Thomas Jefferson Natl Accelerator Facil, Newport News, VA USA. NR 15 TC 0 Z9 0 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0217-751X J9 INT J MOD PHYS A JI Int. J. Mod. Phys. A PD FEB 10 PY 2011 VL 26 IS 3-4 BP 744 EP 747 DI 10.1142/S0217751X11052712 PG 4 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 723TL UT WOS:000287529800110 ER PT J AU Ladak, S Read, D Tyliszczak, T Branford, WR Cohen, LF AF Ladak, Sam Read, Dan Tyliszczak, Tolek Branford, Will R. Cohen, Lesley F. TI Monopole defects and magnetic Coulomb blockade SO NEW JOURNAL OF PHYSICS LA English DT Article ID ARTIFICIAL SPIN-ICE; DOMAIN-WALLS; CHARGE AB Magnetic monopoles, predicted by Dirac, entered a new paradigm with the discovery of emergent monopoles within dipole lattices known as bulk and artificial spin ices. The observation of monopoles in certain artificial systems, and their absence from other similar structures, is a significant puzzle. Connected artificial spin-ice structures attract much attention in terms of the possibility to read states electrically, and offer the possibility of monopole defect control via well-understood domain wall processes. Nevertheless, full comprehension of the underlying processes is lacking. Here, we establish one of the overriding components. We demonstrate using high-resolution scanning transmission x-ray microscopy (STXM) the cooperative process associated with two transverse domain walls that creates the monopole defect in NiFe. The feature size of the array is large compared to the exchange length in the ferromagnet, and the two transverse domain walls give a rich internal structure to the monopole defect vertex. The magnetic Coulomb repulsion between two domain walls carrying the same sign of magnetic charge stabilizes the monopole defects at fields greater than the depinning field for a single wall at that vertex. These observations allow us to form an overview of monopole defect control possibilities from extrinsic pinning as in Co arrays (the extreme extrinsic limit being isolated bar structures) to intrinsic pinning captured here. C1 [Ladak, Sam; Read, Dan; Branford, Will R.; Cohen, Lesley F.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England. [Tyliszczak, Tolek] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Branford, WR (reprint author), Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Prince Consort Rd, London SW7 2AZ, England. EM W.Branford@imperial.ac.uk RI Branford, Will/K-4375-2012; Read, Dan/G-5115-2011; OI Branford, Will/0000-0002-4821-4097; Read, Dan/0000-0002-4178-4986; Ladak, Sam/0000-0002-0275-0927 FU EPSRC [EP/G004765/1]; Leverhulme Trust [F/07058/AW]; US DoE [DE-AC03-76SF00098] FX This work was funded by the EPSRC (grant no. EP/G004765/1; to WRB) and the Leverhulme Trust (grant no. F/07058/AW; to LFC). We are grateful for resources provided by the National Academic Grid. The Advanced Light Source is supported by the US DoE under contract no. DE-AC03-76SF00098. We thank L O'Brien for discussions. NR 23 TC 29 Z9 29 U1 2 U2 17 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 1367-2630 J9 NEW J PHYS JI New J. Phys. PD FEB 10 PY 2011 VL 13 AR 023023 DI 10.1088/1367-2630/13/2/023023 PG 10 WC Physics, Multidisciplinary SC Physics GA 728DH UT WOS:000287853900001 ER PT J AU Shand, PM Schmitter, DC Rojas, G Shield, JE Goertzen, J Meyer, AL Pekarek, TM Kramer, MJ Leslie-Pelecky, DL AF Shand, P. M. Schmitter, D. C. Rojas, G. Shield, J. E. Goertzen, J. Meyer, A. L. Pekarek, T. M. Kramer, M. J. Leslie-Pelecky, D. L. TI Correlating structure with ferromagnetism in melt-spun Gd100-xFex SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE Gadolinium-iron alloy; Nanocrystalline; Coercivity; Ferromagnetism ID CRYSTALLIZATION BEHAVIOR; MAGNETIC-PROPERTIES; NANOCRYSTALLINE GD; CURIE-TEMPERATURE; ALLOYS; GADOLINIUM; TRANSITION; FE; FILMS AB X-ray diffraction and transmission electron microscopy measurements of melt-spun Gd100-xFex (0 <= x <= 40) and inert-gas condensed/compacted samples (3.8 <= x <= 12.7) reveal a structure of crystalline hcp-Gd grains surrounded by a non-crystalline Gd1-xeffFexeff. phase, where x(eff) > x is the effective iron concentration within the amorphous region. The two-phase structure is responsible for an unusual dependence of the coercivity on temperature in which non-zero coercivity is observed above the hcp-Gd T-c. with a peak near 320 K. The coercivity decreases as the hcp-Gd grains order, then increases with decreasing temperature. This behavior is explained by the presence of magnetically correlated Fe-rich regions. (C) 2010 Elsevier B.V. All rights reserved. C1 [Shand, P. M.; Meyer, A. L.] Univ No Iowa, Dept Phys, Cedar Falls, IA 50614 USA. [Schmitter, D. C.; Rojas, G.; Leslie-Pelecky, D. L.] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA. [Schmitter, D. C.; Rojas, G.; Shield, J. E.; Goertzen, J.; Leslie-Pelecky, D. L.] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA. [Shield, J. E.; Goertzen, J.] Univ Nebraska, Dept Mech Engn, Lincoln, NE 68588 USA. [Pekarek, T. M.] Univ N Florida, Dept Chem & Phys, Jacksonville, FL 32224 USA. [Kramer, M. J.] Ames Lab, Ames, IA 50010 USA. RP Shand, PM (reprint author), Univ No Iowa, Dept Phys, Cedar Falls, IA 50614 USA. EM paul.shand@uni.edu FU National Science Foundation [DMR-0504706, DMR-0504177, DMR-0706593]; US Department of Energy [DE-FG02-06ER46264]; Department of Energy, Office of Basic Energy Sciences [DE-AC02-07CH11358] FX This work was supported by the National Science Foundation (DMR-0504706 (UNL), DMR-0504177 (UNI) and DMR-0706593 (UNF)) and the US Department of Energy (DE-FG02-06ER46264). Work at the Ames Laboratory was supported by the Department of Energy, Office of Basic Energy Sciences, under Contract no. DE-AC02-07CH11358. NR 29 TC 0 Z9 0 U1 0 U2 4 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 FEB 10 PY 2011 VL 509 IS 6 BP 3000 EP 3005 DI 10.1016/j.jallcom.2010.11.185 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 717OU UT WOS:000287058100071 ER PT J AU Pai, RK Cotlet, M AF Pai, Ranjith Krishna Cotlet, Mircea TI Highly Stable, Water-Soluble, Intrinsic Fluorescent Hybrid Scaffolds for Imaging and Biosensing SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID RESONANCE ENERGY-TRANSFER; CALCIUM-CARBONATE; SILICA NANOPARTICLES; DRUG-DELIVERY; MICROSPHERES; PROTEIN; PHASE; MICROPARTICLES; TRANSFORMATION; MORPHOLOGIES AB A synthetic method is proposed for the prep aration of micrometer-sized hybrid materials in the form of highly stable, water-soluble, porous, and intrinsic fluorescent vaterites. This is an easy, cost-effective, and polymer-free synthetic method, that is, free of any supplementary complex synthetic or natural macromolecular stabilizers. This method uses a double decomposition reaction to introduce fluorescence as an intrinsic property into the vaterite scaffold, through either organic dyes or dihydrolipoic acid coated core/shell CdSe/ZnS quantum dots. The resulting hybrid scaffold has excellent brightness, photostability, thermal stability, and pH stability. Combined with a large loading surface offered by the vaterite scaffold and the ease of chemical functionalization provided by the water-soluble quantum dots, the obtained hybrid scaffolds show promise in biological applications. Fluorescence imaging and fluorescence-resonance-energy-transfer-based sensing of proteins based on these hybrid materials is illustrated with these hybrid materials at the single-particle level. C1 [Pai, Ranjith Krishna; Cotlet, Mircea] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Pai, RK (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, 735 Brookhaven Ave, Upton, NY 11973 USA. EM rkpai@bnl.gov; cotlet@bnl.gov OI Krishna Pai, Prof. Dr. Ranjith/0000-0003-3323-0876 FU U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]; International Iberian Nanotechnology Laboratory (INL) in Braga, Portugal FX This research was carried out at the Center for Functional Nanomaterials, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Office of Basic Energy Sciences (Contract No. DE-AC02-98CH10886). RKP acknowledges financial support from the International Iberian Nanotechnology Laboratory (INL) in Braga, Portugal. We thank Professor Gang Bao and Dr. A. Dennis from Georgia Tech for providing us expressed TdTomato protein, Dr. Zhihua Xu, Dr. Lihua Zhang and Dr. Fernando Camino from Brookhaven National Laboratory for help with some characterization experiments. NR 40 TC 15 Z9 15 U1 5 U2 28 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 FEB 10 PY 2011 VL 115 IS 5 BP 1674 EP 1681 DI 10.1021/jp109589h PG 8 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 715GJ UT WOS:000286868600041 ER PT J AU Kauffman, KL Culp, JT Goodman, A Matranga, C AF Kauffman, Kristi L. Culp, Jeffrey T. Goodman, Angela Matranga, Christopher TI FT-IR Study of CO2 Adsorption in a Dynamic Copper(II) Benzoate-Pyrazine Host with CO2-CO2 Interactions in the Adsorbed State SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID METAL-ORGANIC FRAMEWORKS; POROUS COORDINATION POLYMERS; SITU INFRARED-SPECTROSCOPY; CARBON-DIOXIDE ADSORPTION; MATRIX-ISOLATION; NANOTUBE BUNDLES; ATR-IR; SORPTION; DIMER; MOLECULES AB A detailed correlation is presented between the in situ Fourier transform-infrared (FT-IR) spectra of adsorbed CO2, CuBzPyz host bands, and CO2 adsorption sites using previously reported crystal structures of CO2- loaded CuBzPyz and CO2 adsorption. isotherms. Through the analysis of both in situ attenuated total reflectance FT-IR spectra taken at several points on the high pressure isotherm and in situ transmission FT-IR spectra acquired at low pressures and cryogenic temperatures, we provide additional insight into the pore-filling mechanism of CO2 on the structurally dynamic CuBzPyz host. The FT-IR spectrum of adsorbed CO2 shows distinct v(2) and v(3) spectral features that can be attributed to known CO2 adsorption sites observed in the reported crystal structure of the CO2-saturated phase of CuBzPyz. The availability of detailed high quality CO2-loaded structural data for CuBzPyz makes this system a case study for associating infrared spectral features with CO2 adsorption sites and should prove valuable for future interpretations of CO2 host-guest and guest-guest interactions when X-ray quality structural data is unavailable. C1 [Kauffman, Kristi L.; Culp, Jeffrey T.; Goodman, Angela; Matranga, Christopher] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. [Culp, Jeffrey T.] URS, South Pk, PA 15129 USA. RP Culp, JT (reprint author), US DOE, Natl Energy Technol Lab, POB 10940, Pittsburgh, PA 15236 USA. EM Jeffrey.Culp@netl.doe.gov RI Kauffman, Kristi/F-5186-2011; Culp, Jeffrey/B-1219-2010; Matranga, Christopher/E-4741-2015 OI Culp, Jeffrey/0000-0002-7422-052X; Matranga, Christopher/0000-0001-7082-5938 FU National Energy Technology Laboratory's (NETL) [DE-AC26-04NT41817, DE-AC06-060R23100] FX This technical effort was performed in support of the National Energy Technology Laboratory's (NETL) ongoing research in CO2 capture under the RDS contracts DE-AC26-04NT41817 and DE-AC06-060R23100 in conjunction with Oak Ridge Institute for Science Education. The authors thank Bret Howard at NETL for assistance with the X-ray diffraction measurements. Reference in this work to any specific commercial product is to facilitate understanding and does not necessarily imply endorsement by the United States Department of Energy. NR 71 TC 15 Z9 15 U1 1 U2 27 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 FEB 10 PY 2011 VL 115 IS 5 BP 1857 EP 1866 DI 10.1021/jp102273w PG 10 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 715GJ UT WOS:000286868600066 ER PT J AU Argyris, D Ho, TA Cole, DR Striolo, A AF Argyris, Dimitrios Ho, Tuan Cole, David R. Striolo, Alberto TI Molecular Dynamics Studies of Interfacial Water at the Alumina Surface SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID ALPHA-AL2O3 0001 SURFACE; VIBRATIONAL-SPECTRA; AQUEOUS-SOLUTION; ALPHA-ALUMINA; AB-INITIO; SIMULATION; MODELS; ADSORPTION; SILICA; OXYHYDROXIDE AB Interfacial water properties at the alumina surface were investigated via all-atom equilibrium molecular dynamics simulations at ambient temperature. Al-terminated and OH-terminated alumina surfaces were considered to assess the structural and dynamic behavior of the first few hydration layers in contact with the substrates. Density profiles suggest water layering up to similar to 10 angstrom from the solid substrate. Planar density distribution data indicate that water molecules in the first interfacial layer are organized in well-defined patterns dictated by the atomic terminations of the alumina surface. Interfacial water exhibits preferential orientation and delayed dynamics compared to bulk water. Water exhibits bulk-like behavior at distances greater than similar to 10 angstrom from the substrate. The formation of an extended hydrogen bond network within the first few hydration layers illustrates the significance of water water interactions on the structural properties at the interface. C1 [Argyris, Dimitrios; Ho, Tuan; Striolo, Alberto] Univ Oklahoma, Sch Chem Biol & Mat Engn, Norman, OK 73019 USA. [Cole, David R.] Oak Ridge Natl Lab, Geochem & Interfacial Sci Grp, Div Chem Sci, Oak Ridge, TN 37831 USA. [Cole, David R.] Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA. RP Striolo, A (reprint author), Univ Oklahoma, Sch Chem Biol & Mat Engn, Norman, OK 73019 USA. EM astriolo@ou.edu RI Striolo, Alberto/G-2926-2011 FU Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725, ERKCC72, DE-SC0001902] FX Financial support was provided, in part, by the Office of Basic Energy Sciences, U.S. Department of Energy, by Contract Number DE-AC05-00OR22725 to Oak Ridge National Laboratory (managed and operated by UT-Battelle, LLC), based on the BES Project ERKCC72 titled "Structure and Dynamics of Earth Materials, Interfaces and Reactions", and by Contract Number DE-SC0001902 to The University of Oklahoma. Generous allocations of computing time were provided by the OU Super-computing Center for Education and Research (OSCER) at the University of Oklahoma and by the National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory. NR 56 TC 50 Z9 50 U1 5 U2 81 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 FEB 10 PY 2011 VL 115 IS 5 BP 2038 EP 2046 DI 10.1021/jp109244c PG 9 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 715GJ UT WOS:000286868600086 ER PT J AU Skelton, AA Fenter, P Kubicki, JD Wesolowski, DJ Cummings, PT AF Skelton, A. A. Fenter, P. Kubicki, J. D. Wesolowski, D. J. Cummings, P. T. TI Simulations of the Quartz(10(1)over-bar1)/Water Interface: A Comparison of Classical Force Fields, Ab Initio Molecular Dynamics, and X-ray Reflectivity Experiments SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID QUARTZ-WATER INTERFACES; ELECTRIC DOUBLE-LAYER; AQUEOUS SOLUTION INTERFACE; SODIUM-CHLORIDE SOLUTIONS; RUTILE 110 SURFACE; ALPHA-QUARTZ; DISSOLUTION KINETICS; SILICATE DISSOLUTION; VIBRATIONAL-SPECTRA; LUQUILLO MOUNTAINS AB Classical molecular dynamics (CMD) simulations of the (10 (1) over bar1) surface of quartz interacting with bulk liquid water are performed using three different classical force fields, Lopes et al., ClayFF, and CHARMM water contact angle (CWCA), and compared to ab initio molecular dynamics (AIMD) and X-ray reflectivity (XR) results. The axial densities of the water and surface atoms normal to the surface are calculated and compared to previous XR experiments. Favorable agreement is shown for all the force fields with respect to the position of the water atoms. Analyses such as the radial distribution functions between water and hydroxyl atoms and the average cosine of the angle between the water dipole vector and the normal of the surface are also calculated for each force field. Significant differences are found between the different force fields from such analyses, indicating differing descriptions of the structured water in the near vicinity of the surface. AIMD simulations are also performed to obtain the water and hydroxyl structure for comparison among the predictions of the three classical force fields to better understand which force field is most accurate. It is shown that ClayFF exhibits the best agreement with the AIMD simulations for water hydroxyl radial distribution functions, suggesting that ClayFF treats the hydrogen bonding more accurately. C1 [Skelton, A. A.; Cummings, P. T.] Vanderbilt Univ, Dept Chem Engn, Nashville, TN 37240 USA. [Fenter, P.] Argonne Natl Lab, Argonne, IL 60439 USA. [Kubicki, J. D.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA. [Wesolowski, D. J.; Cummings, P. T.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Skelton, AA (reprint author), Vanderbilt Univ, Dept Chem Engn, 221 Kirkland Hall, Nashville, TN 37240 USA. EM adam.a.skelton@vanderbilt.edu RI Skelton, Adam/G-4517-2014; Cummings, Peter/B-8762-2013; Kubicki, James/I-1843-2012; OI Cummings, Peter/0000-0002-9766-2216; Kubicki, James/0000-0002-9277-9044; Fenter, Paul/0000-0002-6672-9748 FU U.S. Department of Energy (DOE), Office of Basic Energy Sciences [ERKCC72]; UT Battelle, LLC [DE-AC05-00OR22725]; National Science Foundation [TG-DMR090099] FX This research was supported by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Geoscience Research Program, through grant #ERKCC72 to Oak Ridge National Laboratory, which is managed for DOE by UT Battelle, LLC under contract DE-AC05-00OR22725. P.F. is supported by a subcontract number to Argonne National Laboratory through the project "Compexity at the Oxide-Water Interface". This research was supported in part by the National Science Foundation through TeraGrid resources provided by Lonestar at Texas Advanced Computing Center, under grant number TG-DMR090099. We also appreciate helpful discussions and comments from Lukas Vlcek and Mike Machesky. NR 85 TC 64 Z9 64 U1 6 U2 67 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 FEB 10 PY 2011 VL 115 IS 5 BP 2076 EP 2088 DI 10.1021/jp109446d PG 13 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 715GJ UT WOS:000286868600090 ER PT J AU Aypar, U Morgan, WF Baulch, JE AF Aypar, Umut Morgan, William F. Baulch, Janet E. TI Radiation-induced epigenetic alterations after low and high LET irradiations SO MUTATION RESEARCH-FUNDAMENTAL AND MOLECULAR MECHANISMS OF MUTAGENESIS LA English DT Article DE Ionizing radiation; X-rays; Fe ions; Epigenetics; DNA methylation; MicroRNA ID NF-KAPPA-B; INDUCED GENOMIC INSTABILITY; HAMSTER PANCREATIC TUMORS; ABERRANT DNA METHYLATION; NON-CPG METHYLATION; OXIDATIVE STRESS; CHROMOSOMAL INSTABILITY; PROMOTER METHYLATION; EPITHELIAL-CELLS; TSLC1 GENE AB Epigenetics, including DNA methylation and microRNA (miRNA) expression, could be the missing link in understanding radiation-induced genomic instability (RIGI). This study tests the hypothesis that irradiation induces epigenetic aberrations, which could eventually lead to RIGL and that the epigenetic aberrations induced by low linear energy transfer (LET) irradiation are different than those induced by high LET irradiations. GM10115 cells were irradiated with low LET X-rays and high LET iron (Fe) ions and evaluated for DNA damage, cell survival and chromosomal instability. The cells were also evaluated for specific locus methylation of nuclear factor-kappa B (NF kappa B), tumor suppressor in lung cancer 1 (TSLC1) and cadherin 1 (CDH1) gene promoter regions, long interspersed nuclear element 1 (LINE-1) and Alu repeat element methylation, CpG and non-CpG global methylation and miRNA expression levels. Irradiated cells showed increased micronucleus induction and cell killing immediately following exposure, but were chromosomally stable at delayed times post-irradiation. At this same delayed time, alterations in repeat element and global DNA methylation and miRNA expression were observed. Analyses of DNA methylation predominantly showed hypomethylation, however hypermethylation was also observed. We demonstrate that miRNA expression levels can be altered after X-ray irradiation and that these miRNA are involved in chromatin remodeling and DNA methylation. A higher incidence of epigenetic changes was observed after exposure to X-rays than Fe ions even though Fe ions elicited more chromosomal damage and cell killing. This distinction is apparent at miRNA analyses at which only three miRNA involved in two major pathways were altered after high LET irradiations while six miRNA involved in five major pathways were altered after low LET irradiations. This study also shows that the irradiated cells acquire epigenetic changes suggesting that epigenetic aberrations may arise in the cell without initiating chromosomal instability. (C) 2010 Elsevier B.V. All rights reserved. C1 [Aypar, Umut; Baulch, Janet E.] Univ Maryland, Sch Med, Dept Radiat Oncol, Radiat Oncol Res Lab, Baltimore, MD 21201 USA. [Morgan, William F.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. RP Aypar, U (reprint author), Univ Maryland, Sch Med, Dept Radiat Oncol, Radiat Oncol Res Lab, 655 W Baltimore St,BRB 7-010, Baltimore, MD 21201 USA. EM uaypa001@umaryland.edu FU NASA [NNJ06HD31G, NNX07AT42G]; Battelle Memorial Institute, Pacific Northwest Division; U.S. Department of Energy (DOE), Office of Biological and Environmental Research (OBER) [DE-AC05-76RL0 1830] FX We would like to thank Dr. Katrina M. Waters for her help in analyzing miRNA array data, gene targets and pathways. This work was supported by NASA grants NNJ06HD31G (WFM/JEB) and NNX07AT42G (JEB), and by Battelle Memorial Institute, Pacific Northwest Division, under Contract No. DE-AC05-76RL0 1830 with the U.S. Department of Energy (DOE), Office of Biological and Environmental Research (OBER) Low Dose Science Program. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. NR 60 TC 42 Z9 53 U1 2 U2 14 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0027-5107 J9 MUTAT RES-FUND MOL M JI Mutat. Res.-Fundam. Mol. Mech. Mutagen. PD FEB 10 PY 2011 VL 707 IS 1-2 BP 24 EP 33 DI 10.1016/j.mrfmmm.2010.12.003 PG 10 WC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology SC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology GA 725AC UT WOS:000287616600004 PM 21159317 ER PT J AU Lany, S Zunger, A AF Lany, Stephan Zunger, Alex TI Comment on "Intrinsic n-type Behavior in Transparent Conducting Oxides: A Comparative Hybrid-Functional Study of In2O3, SnO2, and ZnO" SO PHYSICAL REVIEW LETTERS LA English DT Editorial Material ID EXCHANGE C1 [Lany, Stephan; Zunger, Alex] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Lany, S (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. RI Zunger, Alex/A-6733-2013; OI Lany, Stephan/0000-0002-8127-8885 NR 10 TC 23 Z9 23 U1 2 U2 49 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 FEB 10 PY 2011 VL 106 IS 6 AR 069601 DI 10.1103/PhysRevLett.106.069601 PG 1 WC Physics, Multidisciplinary SC Physics GA 719IA UT WOS:000287196900013 PM 21405501 ER PT J AU Nevins, WM Wang, E Candy, J AF Nevins, W. M. Wang, E. Candy, J. TI Magnetic Stochasticity in Gyrokinetic Simulations of Plasma Microturbulence SO PHYSICAL REVIEW LETTERS LA English DT Article ID TRANSPORT; PERTURBATIONS; TURBULENCE; SURFACES; TOKAMAK AB Analysis of the magnetic field structure from electromagnetic simulations of tokamak ion temperature gradient turbulence demonstrates that the magnetic field can be stochastic even at very low plasma pressure. The degree of magnetic stochasticity is quantified by evaluating the magnetic diffusion coefficient. We find that the magnetic stochasticity fails to produce a dramatic increase in the electron heat conductivity because the magnetic diffusion coefficient remains small. C1 [Nevins, W. M.; Wang, E.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Candy, J.] Gen Atom Co, San Diego, CA 92121 USA. RP Nevins, WM (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. FU U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; U.S. Department of Energy by General Atomics [DE-FG03-95ER54309] FX The authors gratefully acknowledge the National Center for Computational Sciences at ORNL for providing computer resources under INCITE No. FUS023. We also acknowledge important conversations with M. J. Puschel, who has also demonstrated that plasma microturbulence produces magnetic stochasticity over this beta scan using the GENE code [18]. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344 and by General Atomics under Contract No. DE-FG03-95ER54309. NR 18 TC 19 Z9 19 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 FEB 10 PY 2011 VL 106 IS 6 AR 065003 DI 10.1103/PhysRevLett.106.065003 PG 4 WC Physics, Multidisciplinary SC Physics GA 719IA UT WOS:000287196900007 PM 21405473 ER PT J AU Ng, J Egedal, J Le, A Daughton, W Chen, LJ AF Ng, J. Egedal, J. Le, A. Daughton, W. Chen, L. -J. TI Kinetic Structure of the Electron Diffusion Region in Antiparallel Magnetic Reconnection SO PHYSICAL REVIEW LETTERS LA English DT Article ID COLLISIONLESS DRIVEN RECONNECTION AB Strong electron pressure anisotropy has been observed upstream of electron diffusion regions during reconnection in Earth's magnetotail and kinetic simulations. For collisionless antiparallel reconnection, we find that the anisotropy drives the electron current in the electron diffusion region, and that this current is insensitive to the reconnection electric field. Reconstruction of the electron distribution function within this region at enhanced resolutions reveals its highly structured nature and the mechanism by which the pressure anisotropy sets the structure of the region. C1 [Ng, J.; Egedal, J.; Le, A.] MIT, Dept Phys & Plasma Sci, Cambridge, MA 02139 USA. [Ng, J.; Egedal, J.; Le, A.] MIT, Fus Ctr, Cambridge, MA 02139 USA. [Daughton, W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Chen, L. -J.] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA. [Chen, L. -J.] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA. RP Ng, J (reprint author), MIT, Dept Phys & Plasma Sci, Cambridge, MA 02139 USA. EM jegedal@psfc.mit.edu RI Chen, Li-Jen/C-2106-2012; Daughton, William/L-9661-2013 FU NASA [NNX10AL11G]; NSF [0844620] FX This work was funded in part by NASA Grant No. NNX10AL11G, an NSF CAREER Grant No. 0844620 at MIT, and by the NASA Heliophysics Theory Program at LANL. NR 12 TC 26 Z9 26 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 FEB 10 PY 2011 VL 106 IS 6 AR 065002 DI 10.1103/PhysRevLett.106.065002 PG 4 WC Physics, Multidisciplinary SC Physics GA 719IA UT WOS:000287196900006 PM 21405472 ER PT J AU Reichhardt, C Reichhardt, CJO AF Reichhardt, C. Reichhardt, C. J. Olson TI Dynamical Ordering and Directional Locking for Particles Moving over Quasicrystalline Substrates SO PHYSICAL REVIEW LETTERS LA English DT Article ID VORTEX LATTICES; SUPERCONDUCTING FILMS; STATES; DEFECTS; SYSTEMS; ARRAYS; PHASES AB We use molecular dynamics simulations to study the driven phases of particles such as vortices or colloids moving over a decagonal quasiperiodic substrate. In the regime where the pinned states have quasicrystalline ordering, the driven phases can order into moving square or smectic states, or into states with aligned rows of both square and triangular tiling which we term dynamically induced Archimedean-like tiling. We show that when the angle of the drive is varied with respect to the substrate, directional locking effects occur where the particle motion locks to certain angles. It is at these locking angles that the dynamically induced Archimedean tiling appears. We also demonstrate that the different dynamical orderings and locking phases show pronounced changes as a function of filling fraction. C1 [Reichhardt, C.; Reichhardt, C. J. Olson] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Reichhardt, C (reprint author), Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA. OI Reichhardt, Cynthia/0000-0002-3487-5089 FU NNSA of the U.S. DoE at LANL [DE-AC52-06NA25396] FX This work was carried out under the auspices of the NNSA of the U.S. DoE at LANL under Contract No. DE-AC52-06NA25396. NR 41 TC 31 Z9 31 U1 1 U2 9 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 FEB 10 PY 2011 VL 106 IS 6 AR 060603 DI 10.1103/PhysRevLett.106.060603 PG 4 WC Physics, Multidisciplinary SC Physics GA 719IA UT WOS:000287196900003 PM 21405453 ER PT J AU Zhou, BZ Li, ZC Wang, XM Cao, YH An, YF Deng, ZF Letu, GR Wang, G Gu, LH AF Zhou, Benzhi Li, Zhengcai Wang, Xiaoming Cao, Yonghui An, Yanfei Deng, Zongfu Letu, Geri Wang, Gang Gu, Lianhong TI Impact of the 2008 ice storm on moso bamboo plantations in southeast China SO JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES LA English DT Article ID NORTHERN NEW-YORK; FINE-ROOT BIOMASS; HARDWOOD FOREST; SNOW DAMAGE; MANAGEMENT IMPLICATIONS; PINE PLANTATIONS; EASTERN ONTARIO; TROPICAL FOREST; WIND DAMAGE; RAIN-FOREST AB A massive ice and snow storm occurred in early 2008 in south China and caused extensive damage to forests. Thirty-six plots of moso bamboo (Phyllostachys pubescens) plantation were established following the ice storm in the central growth area of moso bamboo, Fenyi, Jiangxi province, China. The topographical condition and stand attributes, and the ice storm impact on moso bamboo plantations were investigated. We found that an average of 54.48% (+/- 17.58%) bamboo culms was damaged. The damage patterns included bending, snapping and uprooting, which accounted for 17.01% (+/- 7.28%), 22.37% (+/- 11.58%) and 15.11% (+/- 11.54%) of the total, respectively. An average of 16.42 (+/- 7.09) tons per hectare dead dry biomass was produced, accounting for 37.73% (+/- 14.41%) of total aboveground biomass. A mean value of 8.21 (+/- 3.55) Mg C per hectare was shifted from living biomass to dead. Stand level analysis showed a significant increase in damage level and dead biomass production at north oriented slopes, and with high stand density (between 3000 and 4500 culm/ha). High altitude caused a higher proportion of snapped culms but a lower proportion of uprooted. Analysis at individual culm level suggested that the susceptibility for a culm to break or uproot due to ice storm would rise as its diameter increased, while the susceptibility to bend would decline. The young (1 year old) culm was more susceptible to snapping or bending, while overmature (>5 years old) culm was more susceptible to uprooting, implying it is a good managing practice to harvest mature culm timely. C1 [Zhou, Benzhi; Li, Zhengcai; Wang, Xiaoming; Cao, Yonghui; An, Yanfei; Letu, Geri; Wang, Gang] Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Zhejiang, Peoples R China. [Deng, Zongfu] Chinese Acad Forestry, Expt Ctr Subtrop Forestry, Fenyi 336600, Jiangxi, Peoples R China. [Gu, Lianhong] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Zhou, BZ (reprint author), Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Zhejiang, Peoples R China. EM boozex@gmail.com RI Gu, Lianhong/H-8241-2014 OI Gu, Lianhong/0000-0001-5756-8738 FU National Natural Science Foundation of China [30840064]; Chinese Academy of Forestry [CAFYBB2008006, RISF060701]; NASA [NNG09HP12I]; U.S. Department of Energy (DOE), Office of Science, Climate and Environmental Sciences Division; U.S. Department of Energy [DE-AC05-00OR22725] FX We thank Shangcun Forest Center, under the Experimental Center of Subtropical Forestry, for providing us with every facility during our field survey. Special thanks are extended to Ren Xiaojun and Si Fangfang for their great assistance in field work. Funding for this study was provided by National Natural Science Foundation of China through grant 30840064 and Chinese Academy of Forestry through grants CAFYBB2008006 and RISF060701. The participation of L. Gu in this study was initiated during a trip to China sponsored by NASA grant NNG09HP12I. L. Gu carried out the research afterward with support from the U.S. Department of Energy (DOE), Office of Science, Biological and Environmental Research Program, Climate and Environmental Sciences Division. ORNL is managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. NR 74 TC 7 Z9 10 U1 1 U2 7 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-BIOGEO JI J. Geophys. Res.-Biogeosci. PD FEB 10 PY 2011 VL 116 AR G00H06 DI 10.1029/2009JG001234 PG 10 WC Environmental Sciences; Geosciences, Multidisciplinary SC Environmental Sciences & Ecology; Geology GA 721AE UT WOS:000287323000001 ER PT J AU Holian, BL Mareschal, M Ravelo, R AF Holian, Brad Lee Mareschal, Michel Ravelo, Ramon TI Burnett-Cattaneo continuum theory for shock waves SO PHYSICAL REVIEW E LA English DT Article AB We model strong shock-wave propagation, both in the ideal gas and in the dense Lennard-Jones fluid, using a refinement of earlier work, which accounts for the cold compression in the early stages of the shock rise by a nonlinear, Burnett-like, strain-rate dependence of the thermal conductivity, and relaxation of kinetic-temperature components on the hot, compressed side of the shock front. The relaxation of the disequilibrium among the three components of the kinetic temperature, namely, the difference between the component in the direction of a planar shock wave and those in the transverse directions, particularly in the region near the shock front, is accomplished at a much more quantitative level by a rigorous application of the Cattaneo-Maxwell relaxation equation to a reference solution, namely, the steady shock-wave solution of linear Navier-Stokes-Fourier theory, along with the nonlinear Burnett heat-flux term. Our new continuum theory is in nearly quantitative agreement with nonequilibrium molecular-dynamics simulations under strong shock-wave conditions, using relaxation parameters obtained from the reference solution. C1 [Holian, Brad Lee] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Mareschal, Michel] Univ Libre Bruxelles, Dept Phys, CP223, B-1050 Brussels, Belgium. [Ravelo, Ramon] Univ Texas El Paso, Dept Phys, El Paso, TX 79968 USA. [Ravelo, Ramon] Los Alamos Natl Lab, Computat Phys Div, Los Alamos, NM 87545 USA. RP Holian, BL (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. NR 10 TC 4 Z9 4 U1 1 U2 8 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD FEB 10 PY 2011 VL 83 IS 2 AR 026703 DI 10.1103/PhysRevE.83.026703 PN 2 PG 8 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 719HT UT WOS:000287195800004 PM 21405926 ER PT J AU Fliller, RP Shaftan, T Heese, R Kowalski, S Rose, J Wang, G AF Fliller, R. P. Shaftan, T. Heese, R. Kowalski, S. Rose, J. Wang, G. TI Transverse beam stacking injection system for synchrotron light source booster synchrotrons SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article AB Beam intensity is a key performance parameter for particle accelerators. Modern high-performance storage rings demand injectors that can deliver large currents per injection cycle, which translates to an increase in machine size and consumed power. Therefore, it is justifiable to look for ways to increase the injector's performance while minimizing the size increase. We have investigated a number of ways to accumulate charge in a booster synchrotron and applied one of them to the NSLS-II booster. We have designed a scheme to transversely stack two bunch trains from the injector linac in the booster. In this paper we discuss this stacking scheme. The relevant booster dynamics are studied. The charge transport efficiency of the stacking scheme is studied in detail at injection and through a full booster ramp. Pulsed magnet requirements for the injection system and methods to achieve them are discussed. We show that the charge transport efficiency of the stacking scheme is similar to a single bunch train in the booster. This has become a critical design feature of the NSLS-II booster. C1 [Fliller, R. P.; Shaftan, T.; Heese, R.; Kowalski, S.; Rose, J.; Wang, G.] Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA. RP Fliller, RP (reprint author), Brookhaven Natl Lab, Photon Sci Directorate, Upton, NY 11973 USA. EM rfliller@bnl.gov FU Brookhaven Science Associates, LLC [DE-AC02-98CH10886]; U.S. Department of Energy FX The authors would like to thank Robert Meier for providing the technical drawings in Figs. 6 and 7. We would also like to thank Riccardo Fabris of Trieste and Pierre Lebasque of SOLEIL for their help with the injection kicker driver design. This manuscript has been authored by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy. NR 14 TC 1 Z9 1 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB 10 PY 2011 VL 14 IS 2 AR 020101 DI 10.1103/PhysRevSTAB.14.020101 PG 10 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 719IE UT WOS:000287197400001 ER PT J AU Guimaraes, AJ Nakayasu, ES Sobreira, TJP Cordero, RJB Nimrichter, L Almeida, IC Nosanchuk, JD AF Guimaraes, Allan Jefferson Nakayasu, Ernesto S. Sobreira, Tiago J. P. Cordero, Radames J. B. Nimrichter, Leonardo Almeida, Igor C. Nosanchuk, Joshua Daniel TI Histoplasma capsulatum Heat-Shock 60 Orchestrates the Adaptation of the Fungus to Temperature Stress SO PLOS ONE LA English DT Article ID CELL-WALL; PULMONARY HISTOPLASMOSIS; SACCHAROMYCES-CEREVISIAE; PATHOGENIC FUNGUS; INTRACELLULAR-DISTRIBUTION; MITOCHONDRIAL ACTIVITY; IMMUNE-RESPONSES; PROTEIN; HEAT-SHOCK-PROTEIN-60; MORPHOGENESIS AB Heat shock proteins (Hsps) are among the most widely distributed and evolutionary conserved proteins. Hsps are essential regulators of diverse constitutive metabolic processes and are markedly upregulated during stress. A 62 kDa Hsp (Hsp60) of Histoplasma capsulatum (Hc) is an immunodominant antigen and the major surface ligand to CR3 receptors on macrophages. However little is known about the function of this protein within the fungus. We characterized Hc Hsp60-protein interactions under different temperature to gain insights of its additional functions oncell wall dynamism, heat stress and pathogenesis. We conducted co-immunoprecipitations with antibodies to Hc Hsp60 using cytoplasmic and cell wall extracts. Interacting proteins were identified by shotgun proteomics. For the cell wall, 84 common interactions were identified among the 3 growth conditions, including proteins involved in heat-shock response, sugar and amino acid/protein metabolism and cell signaling. Unique interactions were found at each temperature [30 degrees C (81 proteins), 37 degrees C (14) and 37/40 degrees C (47)]. There were fewer unique interactions in cytoplasm [30 degrees C (6), 37 degrees C (25) and 37/40 degrees C (39)] and four common interactions, including additional Hsps and other known virulence factors. These results show the complexity of Hsp60 function and provide insights into Hc biology, which may lead to new avenues for the management of histoplasmosis. C1 [Guimaraes, Allan Jefferson; Nosanchuk, Joshua Daniel] Yeshiva Univ, Dept Med, Albert Einstein Coll Med, Div Infect Dis, Bronx, NY USA. [Guimaraes, Allan Jefferson; Cordero, Radames J. B.; Nosanchuk, Joshua Daniel] Yeshiva Univ, Dept Microbiol & Immunol, Albert Einstein Coll Med, Bronx, NY USA. [Nakayasu, Ernesto S.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Sobreira, Tiago J. P.] Heart Inst InCor, Lab Genet & Mol Cardiol, Grp Computat Biol, Sao Paulo, Brazil. [Nimrichter, Leonardo] Univ Fed Rio de Janeiro, Inst Microbiol Prof Paulo de Goes, Lab Estudos Integrados Bioquim Microbiana, Rio De Janeiro, Brazil. [Almeida, Igor C.] Univ Texas El Paso, Dept Biol Sci, Border Biomed Res Ctr, El Paso, TX 79968 USA. RP Guimaraes, AJ (reprint author), Yeshiva Univ, Dept Med, Albert Einstein Coll Med, Div Infect Dis, Bronx, NY USA. EM josh.nosanchuk@einstein.yu.edu RI Sobreira, Tiago/C-1276-2008; Nimrichter, Leonardo/L-3545-2014; OI Sobreira, Tiago/0000-0002-0217-0084; Nimrichter, Leonardo/0000-0001-9281-6856; Cordero, Radames JB/0000-0002-3026-7094 FU Fogarty International Center (NIH ) [D43-TW007129]; NIH [AI52733, 5G12RR008124-16A1]; Center for AIDS Research at the Albert Einstein College of Medicine and Montefiore Medical Center [NIH AI-51519]; Conselho Nacional de Desenvolvimento Tecnologico (CNPq, Brazil); Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ, Brazil); Biomolecule Analysis Core Facility, Border Biomedical Research Center/Biology/University of Texas at El Paso (NIH) [5G12RR008124-16A1, 5G12RR008124-16A1S1] FX A.J.G. and L.N. were supported in part by an Interhemispheric Research Training Grant in Infectious Diseases, Fogarty International Center (NIH D43-TW007129). A.J.G and J.D.N. are supported in part by NIH AI52733 and the Center for AIDS Research at the Albert Einstein College of Medicine and Montefiore Medical Center (NIH AI-51519). L.N. is supported by grants from Conselho Nacional de Desenvolvimento Tecnologico (CNPq, Brazil) and Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ, Brazil). ICA is funded by NIH grant # 5G12RR008124-16A1. The authors thank the Biomolecule Analysis Core Facility, Border Biomedical Research Center/Biology/University of Texas at El Paso (NIH grants # 5G12RR008124-16A1 and 5G12RR008124-16A1S1), for the access to the LC-MS/MS instrumentation. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 67 TC 12 Z9 12 U1 0 U2 8 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 FEB 10 PY 2011 VL 6 IS 2 AR e14660 DI 10.1371/journal.pone.0014660 PG 12 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 721NZ UT WOS:000287363000003 PM 21347364 ER PT J AU Kratzer, RM Richards, GT Goldberg, DM Oguri, M Kochanek, CS Hodge, JA Becker, RH Inada, N AF Kratzer, Rachael M. Richards, Gordon T. Goldberg, David M. Oguri, Masamune Kochanek, Christopher S. Hodge, Jacqueline A. Becker, Robert H. Inada, Naohisa TI ANALYZING THE FLUX ANOMALIES OF THE LARGE-SEPARATION LENSED QUASAR SDSS J1029+2623 SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE galaxies: clusters: general; gravitational lensing: strong; quasars: individual (SDSS 102913.94+262317.9) ID DIGITAL SKY SURVEY; DARK-MATTER SUBSTRUCTURE; 3RD DATA RELEASE; GRAVITATIONAL LENS; EXTINCTION CURVES; TIME-DELAY; GALAXIES; SEARCH; SDSS-J1004+4112; B1422+231 AB Using a high-resolution radio image, we successfully resolve the two-fold image components B and C of the quasar lens system SDSS J1029+2623. The flux anomalies associated with these two components in the optical regime persist, albeit less strongly, in our radio observations suggesting that the cluster must be modeled by something more than a single central potential. We argue that placing substructure close to one of the components can account for a flux anomaly with negligible changes in the component positions. Our best-fit model has a substructure mass of similar to 10(9) M-circle dot up to the mass-sheet degeneracy, located roughly 0 ''.1 west and 0 ''.1 north of component B. We demonstrate that a positional offset between the centers of the source components can explain the differences between the optical and radio flux ratios. C1 [Kratzer, Rachael M.; Richards, Gordon T.; Goldberg, David M.] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA. [Oguri, Masamune] Natl Astron Observ Japan, Div Theoret Astron, Tokyo 1818588, Japan. [Kochanek, Christopher S.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA. [Hodge, Jacqueline A.; Becker, Robert H.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. [Becker, Robert H.] Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. [Inada, Naohisa] Univ Tokyo, Sch Sci, Res Ctr Early Univ, Bunkyo Ku, Tokyo 1130033, Japan. RP Kratzer, RM (reprint author), Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA. RI Oguri, Masamune/C-6230-2011; Goldberg, David/A-5239-2013 FU Alfred P. Sloan Research Fellowship; NSF [AST-0708082, AST-1009756]; US Department of Energy by Lawrence Livermore National Laboratory [W-7405-ENG-48] FX R.M.K. thanks Wendy B. Harris for her lensmodel expertise. G. T. R. was supported in part by an Alfred P. Sloan Research Fellowship. C. S. K. is supported by NSF grants AST-0708082 and AST-1009756. R.H.B.'s work was supported in part under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory under contract W-7405-ENG-48. This work is based in part on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan. NR 34 TC 10 Z9 10 U1 0 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 2041-8205 J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD FEB 10 PY 2011 VL 728 IS 1 AR L18 DI 10.1088/2041-8205/728/1/L18 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 711WV UT WOS:000286623000018 ER PT J AU Wright, DJ Chene, AN De Cat, P Marois, C Mathias, P Macintosh, B Isaacs, J Lehmann, H Hartmann, M AF Wright, D. J. Chene, A. -N. De Cat, P. Marois, C. Mathias, P. Macintosh, B. Isaacs, J. Lehmann, H. Hartmann, M. TI DETERMINATION OF THE INCLINATION OF THE MULTI-PLANET HOSTING STAR HR 8799 USING ASTEROSEISMOLOGY SO ASTROPHYSICAL JOURNAL LETTERS LA English DT Article DE planetary systems; stars: individual (HR 8799); stars: oscillations (including pulsations) ID GAMMA-DORADUS CANDIDATES; SYSTEM; CAMPAIGN; BINARY AB Direct imaging of the HR 8799 system was a major achievement in the study of exoplanets. HR 8799 is a gamma Doradus variable and asteroseismology can provide an independent constraint on the inclination. Using 650 high signal-to-noise, high-resolution, full visual wavelength spectroscopic observations obtained over two weeks at Observatoire de Haute Provence with the SOPHIE spectrograph, we find that the main frequency in the radial velocity data is 1.9875 day(-1). This frequency corresponds to the main frequency as found in previous photometric observations. Using the FAMIAS software to identify the pulsation modes, we find that this frequency is a prograde l = 1 sectoral mode and obtain the constraint that inclination i greater than or similar to 40 degrees. C1 [Wright, D. J.; De Cat, P.] Koninklijke Sterrenwacht Belgie, B-1180 Brussels, Belgium. [Chene, A. -N.] HIA NRC Canada, Canadian Gemini Off, Victoria, BC V9E 2E7, Canada. [Chene, A. -N.] Univ Concepcion, Dept Astron, Concepcion, Chile. [Chene, A. -N.] Univ Valparaiso, Fac Ciencia, Dept Fis & Astron, Valparaiso, Chile. [Marois, C.] Herzberg Inst Astrophys, Natl Res Council Canada, Victoria, BC V9E 2E7, Canada. [Mathias, P.] Univ Toulouse, CNRS, Lab Astrophys Toulouse Tarbes, F-65000 Tarbes, France. [Macintosh, B.; Isaacs, J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Isaacs, J.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. [Lehmann, H.; Hartmann, M.] Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany. RP Wright, DJ (reprint author), Koninklijke Sterrenwacht Belgie, Ringlaan 3, B-1180 Brussels, Belgium. EM Duncan.Wright@oma.beem; achene@astro-udec.cl; peter@oma.be; Christian.Marois@nrc-cnrc.gc.ca; pmathias@ast.obs-mip.fr; macintosh1@llnl.gov; jaisaacs@wisc.edu; artie@tls-tautenburg.de; michael@tls-tautenburg.de RI Wright, Duncan/D-4029-2011 FU Belgian Federal Science Policy [MO/33/021]; Comite Mixto ESO-GOBIERNO DE CHILE; BASAL/FONDAP; Fund for Scientific Research-Flanders (FWO) [G.0332.06]; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE- AC52-07NA27344] FX We thank A. Moya for helping discussion and useful advices. Wright acknowledges support from the Belgian Federal Science Policy (project MO/33/021). A.N.C. acknowledges support from Comite Mixto ESO-GOBIERNO DE CHILE and from BASAL/FONDAP project. P. D. C. acknowledges financial support from the Fund for Scientific Research-Flanders (FWO; project G.0332.06). Portions of this work were performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE- AC52-07NA27344. NR 29 TC 23 Z9 23 U1 0 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 2041-8205 J9 ASTROPHYS J LETT JI Astrophys. J. Lett. PD FEB 10 PY 2011 VL 728 IS 1 AR L20 DI 10.1088/2041-8205/728/1/L20 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 711WV UT WOS:000286623000020 ER PT J AU Shuttleworth, RR Elman, HC Long, KR Templeton, JA AF Shuttleworth, Robert R. Elman, Howard C. Long, Kevin R. Templeton, Jeremy A. TI Fast solvers for models of ICEO microfluidic flows SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS LA English DT Article DE micro-fluids; Navier-Stokes; incompressible flow; linear solvers; optimization; laminar flow ID NAVIER-STOKES EQUATIONS; INDUCED-CHARGE ELCTROOSMOSIS; ELECTROPHORESIS; OPTIMIZATION; PERFORMANCE; PARTICLES; ALGORITHM; DESIGN; CHIP AB We demonstrate the performance of a fast computational algorithm for modeling the design of a microfluidic mixing device. The device uses an electrokinetic process, induced charge electroosmosis (J. Fluid Mech. 2004; 509), by which a flow through the device is driven by a set of polarizable obstacles in it. Its design is realized by manipulating the shape and orientation of the obstacles in order to maximize the amount of fluid mixing within the device. The computation entails the solution of a constrained optimization problem in which function evaluations require the numerical solution of a set of partial differential equations: a potential equation, the incompressible Navier Stokes equations, and a mass-transport equation. The most expensive component of the function evaluation (which must be performed at every step of an iteration for the optimization) is the solution of the Navier Stokes equations. We show that by using some new robust algorithms for this task (SIAM J. Sci. Comput. 2002; 24:237-256; J. Comput. Appl. Math. 2001; 128:261-279), based on certain preconditioners that take advantage of the structure of the linearized problem, this computation can be done efficiently. Using this computational strategy, in conjunction with a derivative-free pattern search algorithm for the optimization, applied to a finite element discretization of the problem, we are able to determine optimal configurations of microfluidic devices. Copyright (C) 2009 John Wiley & Sons, Ltd. C1 [Elman, Howard C.] Univ Maryland, Dept Comp Sci, College Pk, MD 20742 USA. [Elman, Howard C.] Univ Maryland, Inst Adv Comp Studies, College Pk, MD 20742 USA. [Shuttleworth, Robert R.] Univ Maryland, Appl Math & Sci Comp Program, College Pk, MD 20742 USA. [Shuttleworth, Robert R.] Univ Maryland, Ctr Sci Computat & Math Modeling, College Pk, MD 20742 USA. [Long, Kevin R.] Texas Tech Univ, Dept Math & Stat, Lubbock, TX 79049 USA. [Templeton, Jeremy A.] Sandia Natl Labs, Livermore, CA 94551 USA. RP Elman, HC (reprint author), Univ Maryland, Dept Comp Sci, College Pk, MD 20742 USA. EM elman@cs.umd.edu RI Elman, Howard/F-6517-2011 OI Elman, Howard/0000-0002-8886-9901 FU DOE Office of Science [DEFG0204ER25619]; ASC Program at Sandia National Laboratories [DE-AC04-94AL85000] FX Contract/grant sponsor: DOE Office of Science MICS Program; contract/grant number: DEFG0204ER25619; Contract/grant sponsor: ASC Program at Sandia National Laboratories; contract/grant number: DE-AC04-94AL85000 NR 46 TC 1 Z9 1 U1 0 U2 7 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0271-2091 J9 INT J NUMER METH FL JI Int. J. Numer. Methods Fluids PD FEB 10 PY 2011 VL 65 IS 4 BP 383 EP 404 DI 10.1002/fld.2188 PG 22 WC Computer Science, Interdisciplinary Applications; Mathematics, Interdisciplinary Applications; Mechanics; Physics, Fluids & Plasmas SC Computer Science; Mathematics; Mechanics; Physics GA 710ZM UT WOS:000286555500003 ER PT J AU Duan, XM Stampfl, C Bilek, MMM McKenzie, DR Wei, SH AF Duan, X. M. Stampfl, C. Bilek, M. M. M. McKenzie, D. R. Wei, Su-Huai TI Design of shallow acceptors in ZnO through early transition metals codoped with N acceptors SO PHYSICAL REVIEW B LA English DT Article ID P-TYPE ZNO; MOLECULAR-BEAM EPITAXY; THIN-FILMS; ELECTRICAL-PROPERTIES; OPTICAL-PROPERTIES; SEMICONDUCTORS; FABRICATION; DEPOSITION; CONDUCTION; DIODES AB We perform first-principles density-functional theory calculations to study the atomic and electronic properties of early transition metals (Zr, Ti, Y, and Sc) codoped with N in wurtzite ZnO. By incorporating early transition metals Ti, Zr, Y, and Sc with N into ZnO simultaneously, we find that forming complexes (Zr-2N), (Ti-2N), (Y-N), and (Sc-N) induces fully occupied impurity bands with the N 2p character above the valence band maximum of host ZnO. With further doping of N in ZnO, the systems (Zr-2N): N, (Ti-2N): N, (Y-N): N, or (Sc-N): N have acceptor ionization energies lower than that of the isolated N acceptor in ZnO. Under different growth conditions (i.e., using an N2O or NO source for the nitrogen atoms), we calculate the formation energies of the defect complexes and compare the dopability of the selected codoped systems. Our results show that the valence band maximum characteristic of ZnO can be altered by compensated donor-acceptor pairs, thus improving the p-type dopability. C1 [Duan, X. M.] Ningbo Univ, Dept Phys, Ningbo 315211, Zhejiang, Peoples R China. [Duan, X. M.; Stampfl, C.; Bilek, M. M. M.; McKenzie, D. R.] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia. [Wei, Su-Huai] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Duan, XM (reprint author), Ningbo Univ, Dept Phys, Ningbo 315211, Zhejiang, Peoples R China. FU Australian Research Council; Australian Partnership for Advanced Computing National Facility; Australian Center for Advanced Computing and Communications; U.S. Department of Energy (DOE) [DE-AC36-08GO28308]; National Science Foundation of China [11074135]; National Science Foundation of Ningbo [2010A610144]; Ningbo University; K. C. Wong Education Foundation, Hong Kong; SRF for ROCS, SEM FX The authors gratefully acknowledge support from the Australian Research Council, the Australian Partnership for Advanced Computing National Facility, and the Australian Center for Advanced Computing and Communications. The work at NREL is funded by the U.S. Department of Energy (DOE) under Contract No. DE-AC36-08GO28308. The work in China is sponsored by the National Science Foundation of China (Grant No. 11074135), of Ningbo (Grant No. 2010A610144) and by K. C. Wong Magna Fund in Ningbo University. X. M. Duan gratefully acknowledges the support of K. C. Wong Education Foundation, Hong Kong and the support of SRF for ROCS, SEM. NR 47 TC 15 Z9 15 U1 4 U2 34 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 10 PY 2011 VL 83 IS 8 AR 085202 DI 10.1103/PhysRevB.83.085202 PG 8 WC Physics, Condensed Matter SC Physics GA 719HE UT WOS:000287193400003 ER PT J AU Hirano, T Huovinen, P Nara, Y AF Hirano, Tetsufumi Huovinen, Pasi Nara, Yasushi TI Elliptic flow in U+U collisions at root s(NN)=200 GeV and in Pb+Pb collisions at root s(NN)=2.76 TeV: Prediction from a hybrid approach SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION COLLISIONS; NUCLEAR COLLISIONS AB We predict the elliptic flow parameter v(2) in U+U collisions at root s(NN) = 200 GeV and in Pb+Pb collisions at root s(NN) = 2.76 TeV using a hybrid model in which the evolution of the quark gluon plasma is described by ideal hydrodynamics with a state-of-the-art lattice QCD equation of state and the subsequent hadronic stage is described by a hadron cascade model. C1 [Hirano, Tetsufumi] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan. [Hirano, Tetsufumi] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Huovinen, Pasi] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany. [Nara, Yasushi] Akita Int Univ, Akita 0101292, Japan. RP Hirano, T (reprint author), Univ Tokyo, Dept Phys, Tokyo 1130033, Japan. EM hirano@phys.s.u-tokyo.ac.jp; huovinen@th.physik.uni-frankfurt.de; nara@aiu.ac.jp FU Japan Society for the Promotion of Science [21-3383]; ExtreMe Matter Institute (EMMI); [22740151]; [20540276] FX The work of T. H. (Y.N.) was partly supported by Grant-in-Aid for Scientific Research No. 22740151 (No. 20540276). T. H. is also supported under the Excellent Young Researchers Oversea Visit Program (No. 21-3383) by Japan Society for the Promotion of Science. P. H.'s work is supported by the ExtreMe Matter Institute (EMMI). We acknowledge fruitful discussion with A. Dumitru. T. H. thanks members in the nuclear theory group at Lawrence Berkeley National Laboratory for their kind hospitality during his sabbatical stay and M. Gyulassy for his suggestion to calculate v2 at the LHC energies. NR 32 TC 43 Z9 43 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD FEB 10 PY 2011 VL 83 IS 2 AR 021902 DI 10.1103/PhysRevC.83.021902 PG 5 WC Physics, Nuclear SC Physics GA 719HG UT WOS:000287193700001 ER PT J AU Ticknor, C Wilson, RM Bohn, JL AF Ticknor, Christopher Wilson, Ryan M. Bohn, John L. TI Anisotropic Superfluidity in a Dipolar Bose Gas SO PHYSICAL REVIEW LETTERS LA English DT Article ID EINSTEIN CONDENSED GAS AB We study the superfluid character of a dipolar Bose-Einstein condensate (DBEC) in a quasi-two dimensional geometry. We consider the dipole polarization to have some nonzero projection into the plane of the condensate so that the effective interaction is anisotropic in this plane, yielding an anisotropic dispersion relation. By performing direct numerical simulations of a probe moving through the DBEC, we observe the sudden onset of drag or creation of vortex-antivortex pairs at critical velocities that depend strongly on the direction of the probe's motion. This anisotropy emerges because of the anisotropic manifestation of a rotonlike mode in the system. C1 [Ticknor, Christopher] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Wilson, Ryan M.; Bohn, John L.] Univ Colorado, NIST, JILA, Boulder, CO 80309 USA. [Wilson, Ryan M.; Bohn, John L.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA. RP Ticknor, C (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RI Wilson, Ryan/F-3199-2010; Ticknor, Christopher/B-8651-2014; OI Ticknor, Christopher/0000-0001-9972-4524 FU U.S. DOE [DE-AC52-06NA25396]; DOE; NSF FX C. T. gratefully acknowledges support from LANL, which is operated by LANS, LLC for the NNSA of the U.S. DOE under Contract No. DE-AC52-06NA25396. R. M. W. and J. L. B. acknowledge financial support from the DOE and the NSF. NR 22 TC 80 Z9 80 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 FEB 10 PY 2011 VL 106 IS 6 AR 065301 DI 10.1103/PhysRevLett.106.065301 PG 4 WC Physics, Multidisciplinary SC Physics GA 719IA UT WOS:000287196900008 PM 21405474 ER PT J AU Yin, WJ Wei, SH Al-Jassim, MM Yan, YF AF Yin, Wan-Jian Wei, Su-Huai Al-Jassim, Mowafak M. Yan, Yanfa TI Double-Hole-Mediated Coupling of Dopants and Its Impact on Band Gap Engineering in TiO2 SO PHYSICAL REVIEW LETTERS LA English DT Article ID TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; S-DOPED TIO2; PHOTOCATALYTIC DEGRADATION; BASIS-SET; SEMICONDUCTORS; NANOMATERIALS; ANATASE AB A double-hole-mediated coupling of dopants is unraveled and confirmed in TiO2 by density-functional theory calculations. We find that when a dopant complex on neighboring oxygen sites in TiO2 has net two holes, the holes will strongly couple to each other through significant lattice relaxation. The coupling results in the formation of fully filled impurity bands lying above the valence band of TiO2, leading to a much more effective band gap reduction than that induced by monodoping or conventional donor-acceptor codoping. Our results suggest a new path for semiconductor band gap engineering. C1 [Yin, Wan-Jian; Wei, Su-Huai; Al-Jassim, Mowafak M.; Yan, Yanfa] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Yin, WJ (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM yanfa.yan@nrel.gov RI Yin, Wanjian/F-6738-2013 FU U.S. Department of Energy [DE-AC36-08GO28308] FX This work was supported by the U.S. Department of Energy under Contract No. DE-AC36-08GO28308. NR 29 TC 82 Z9 86 U1 5 U2 48 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 FEB 10 PY 2011 VL 106 IS 6 AR 066801 DI 10.1103/PhysRevLett.106.066801 PG 4 WC Physics, Multidisciplinary SC Physics GA 719IA UT WOS:000287196900010 PM 21405484 ER PT J AU Krishnamoorthy, M Patel, P Dimitrijevic, M Dietrich, J Green, M Macken, C AF Krishnamoorthy, Mohan Patel, Pragneshkumar Dimitrijevic, Mira Dietrich, Jonathan Green, Margaret Macken, Catherine TI Tree pruner: An efficient tool for selecting data from a biased genetic database SO BMC BIOINFORMATICS LA English DT Article AB Background: Large databases of genetic data are often biased in their representation. Thus, selection of genetic data with desired properties, such as evolutionary representation or shared genotypes, is problematic. Selection on the basis of epidemiological variables may not achieve the desired properties. Available automated approaches to the selection of influenza genetic data make a tradeoff between speed and simplicity on the one hand and control over quality and contents of the dataset on the other hand. A poorly chosen dataset may be detrimental to subsequent analyses. Results: We developed a tool, Tree Pruner, for obtaining a dataset with desired evolutionary properties from a large, biased genetic database. Tree Pruner provides the user with an interactive phylogenetic tree as a means of editing the initial dataset from which the tree was inferred. The tree visualization changes dynamically, using colors and shading, reflecting Tree Pruner actions. At the end of a Tree Pruner session, the editing actions are implemented in the dataset. Currently, Tree Pruner is implemented on the Influenza Research Database (IRD). The data management capabilities of the IRD allow the user to store a pruned dataset for additional pruning or for subsequent analysis. Tree Pruner can be easily adapted for use with other organisms. Conclusions: Tree Pruner is an efficient, manual tool for selecting a high-quality dataset with desired evolutionary properties from a biased database of genetic sequences. It offers an important alternative to automated approaches to the same goal, by providing the user with a dynamic, visual guide to the ongoing selection process and ultimate control over the contents (and therefore quality) of the dataset. C1 [Krishnamoorthy, Mohan; Patel, Pragneshkumar; Dimitrijevic, Mira; Macken, Catherine] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. [Dietrich, Jonathan] Northrop Grumman Hlth IT, Rockville, MD USA. [Green, Margaret] Genentech Inc, San Francisco, CA 94080 USA. RP Macken, C (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. EM cmacken@lanl.gov FU NIH [YI-AI-8312-01, YI-AI-7239-02]; NIH/NIAID [HHSN266200400041C] FX MG's contribution was accomplished while at Los Alamos National Laboratory. MK, PP, MD, MG and CM acknowledge funding from NIH Interagency Agreements YI-AI-8312-01 and YI-AI-7239-02. JD acknowledges funding from NIH/NIAID Contract No. HHSN266200400041C. All intellectual developments were the work of the named authors only. NR 0 TC 1 Z9 1 U1 0 U2 0 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2105 J9 BMC BIOINFORMATICS JI BMC Bioinformatics PD FEB 9 PY 2011 VL 12 AR 51 DI 10.1186/1471-2105-12-51 PG 8 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Mathematical & Computational Biology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Mathematical & Computational Biology GA 726QZ UT WOS:000287742500001 PM 21306634 ER PT J AU Zhao, R Koschny, T Economou, EN Soukoulis, CM AF Zhao, R. Koschny, Th. Economou, E. N. Soukoulis, C. M. TI Repulsive Casimir forces with finite-thickness slabs SO PHYSICAL REVIEW B LA English DT Article ID NEGATIVE REFRACTIVE-INDEX; REFLECTION; WAVES AB We use the extended Lifshitz theory to study the behaviors of the Casimir forces between finite-thickness effective medium slabs. We first study the interaction between a semi-infinite Drude metal and a finite-thickness magnetic slab with or without substrate. For no substrate, the large distance d dependence of the force is repulsive and goes as 1/d(5); for the Drude metal substrate, a stable equilibrium point appears at an intermediate distance that can be tuned by the thickness of the slab. We then study the interaction between two identical chiral metamaterial slabs, with and without substrate. For no substrate, the finite thickness of the slabs D does not significantly influence the repulsive character of the force at short distances, while the attractive character at large distances becomes weaker and behaves as 1/d(6); for the Drude metal substrate, the finite thickness of the slabs D does not influence the repulsive force too much at short distances until D = 0.05 lambda(0). C1 [Zhao, R.; Koschny, Th.; Soukoulis, C. M.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. [Zhao, R.; Koschny, Th.; Soukoulis, C. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Zhao, R.] Beijing Normal Univ, Dept Phys, Appl Opt Beijing Area Major Lab, Beijing 100875, Peoples R China. [Koschny, Th.; Economou, E. N.; Soukoulis, C. M.] Univ Crete, Inst Elect Struct & Laser, FORTH, Dept Mat Sci & Technol, G-71110 Iraklion, Crete, Greece. RP Zhao, R (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RI Zhao, Rongkuo/B-5731-2008; Economou, Eleftherios /E-6374-2010; Soukoulis, Costas/A-5295-2008 FU Department of Energy (Basic Energy Sciences) [DE-AC02-07CH11358]; China Scholarship Council (CSC) FX Work at Ames Laboratorywas supported by the Department of Energy (Basic Energy Sciences) under Contract No. DE-AC02-07CH11358. R.Z. acknowledges the China Scholarship Council (CSC) for financial support. NR 30 TC 26 Z9 27 U1 3 U2 20 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD FEB 9 PY 2011 VL 83 IS 7 AR 075108 DI 10.1103/PhysRevB.83.075108 PG 6 WC Physics, Condensed Matter SC Physics GA 718NT UT WOS:000287131100003 ER PT J AU Li, LA Pandey, A Werder, DJ Khanal, BP Pietryga, JM Klimov, VI AF Li, Liang Pandey, Anshu Werder, Donald J. Khanal, Bishnu P. Pietryga, Jeffrey M. Klimov, Victor I. TI Efficient Synthesis of Highly Luminescent Copper Indium Sulfide-Based Core/Shell Nanocrystals with Surprisingly Long-Lived Emission SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID SINGLE-SOURCE PRECURSORS; CUINS2 NANOCRYSTALS; QUANTUM DOTS; SEMICONDUCTOR NANOCRYSTALS; SOLAR-CELLS; NANOPARTICLES; DYNAMICS; INKS; FILMS AB We report an efficient synthesis of copper indium sulfide nanocrystals with strong photoluminescence in the visible to near-infrared. This method can produce gram quantities of material with a chemical yield in excess of 90% with minimal solvent waste. The overgrowth of as-prepared nanocrystals with a few monolayers of CdS or ZnS increases the photoluminescence quantum efficiency to > 80%. On the basis of time-resolved spectroscopic studies of core/shell particles, we conclude that the emission is due to an optical transition that couples a quantized electron state to a localized hole state, which is most likely associated with an internal defect. C1 [Li, Liang; Pandey, Anshu; Werder, Donald J.; Khanal, Bishnu P.; Pietryga, Jeffrey M.; Klimov, Victor I.] Los Alamos Natl Lab, Div Chem, Ctr Adv Solar Photophys, C PCS, Los Alamos, NM 87545 USA. RP Klimov, VI (reprint author), Los Alamos Natl Lab, Div Chem, Ctr Adv Solar Photophys, C PCS, POB 1663, Los Alamos, NM 87545 USA. EM klimov@lanl.gov RI Khanal, Bishnu/C-9285-2011; LI, Liang/A-9686-2011; OI Klimov, Victor/0000-0003-1158-3179 FU U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES); Chemical Sciences, Bioscience and Geosciences Division of BES, U.S. DOE FX This material is based upon work within the Center for Advanced Solar Photophysics, an Energy Frontier Research Center funded by the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences (BES). J.M.P acknowledges support by the Chemical Sciences, Bioscience and Geosciences Division of BES, U.S. DOE. A.P. and B.P.K.. are Los Alamos National Laboratory Director's Postdoctoral Fellows. We thank Engang Fu for performing XRD. NR 26 TC 297 Z9 303 U1 26 U2 241 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 FEB 9 PY 2011 VL 133 IS 5 BP 1176 EP 1179 DI 10.1021/ja108261h PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA 719SE UT WOS:000287228500010 PM 21207995 ER PT J AU Tsai, AS Tauchert, ME Bergman, RG Ellman, JA AF Tsai, Andy S. Tauchert, Michael E. Bergman, Robert G. Ellman, Jonathan A. TI Rhodium(III)-Catalyzed Arylation of Boc-Imines via C-H Bond Functionalization SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID FRIEDEL-CRAFTS ALKYLATION; CARBON-CARBON BOND; ALPHA-AMINO-ACIDS; ACTIVATION; CLEAVAGE; ALKYNES; RH; IR; HYDROARYLATION; ALKYNYLATION AB The first rhodium-catalyzed arylation of imines proceeding via C-H bond functionalization is reported. Use of a non-coordinating halide abstractor is important to obtain reactivity. Aryl-branched N-Boc-amines are formed, and a wide range of functionality is compatible with the reaction. C1 [Bergman, Robert G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. [Tsai, Andy S.; Ellman, Jonathan A.] Yale Univ, Dept Chem, New Haven, CT 06520 USA. [Tauchert, Michael E.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RP Bergman, RG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM rbergman@berkeley.edu; jonathan.ellman@yale.edu RI Tauchert, Michael/B-4148-2012; Tauchert, Michael/I-3573-2014; Ellman, Jonathan/C-7732-2013 OI Tauchert, Michael/0000-0002-1667-4021; Tauchert, Michael/0000-0002-1667-4021; FU NIH [GM069559]; Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division, U.S. Department of Energy [DE-AC02-05CH11231]; Eli Lilly Fellowship; Deutsche Forschungsgemeinschaft (DFG) [Ta 733/1-1] FX This work was supported by the NIH grant GM069559 (to J.A.E.) and by the Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division, U.S. Department of Energy under contract DE-AC02-05CH11231 (to R.G.B.). A.S.T. is grateful for an Eli Lilly Fellowship, and M.E.T. thanks the Deutsche Forschungsgemeinschaft (DFG) for a research fellowship (Ta 733/1-1). NR 35 TC 190 Z9 190 U1 4 U2 61 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 FEB 9 PY 2011 VL 133 IS 5 BP 1248 EP 1250 DI 10.1021/ja109562x PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA 719SE UT WOS:000287228500029 PM 21204527 ER PT J AU Cheng, JG Zhou, JS Goodenough, JB Sui, Y Ren, Y Suchomel, MR AF Cheng, J. -G. Zhou, J. -S. Goodenough, J. B. Sui, Y. Ren, Y. Suchomel, M. R. TI High-pressure synthesis and physical properties of perovskite and post-perovskite Ca1-xSrxIrO3 SO PHYSICAL REVIEW B LA English DT Article ID NEUTRON POWDER DIFFRACTION; TRANSPORT-PROPERTIES; PHASE-TRANSITION; STRUCTURE MODEL; CAIRO3; OXIDES; SR2IRO4; MGSIO3; STATE; FERROMAGNETISM AB The post-perovskite (pPv) is the high-pressure phase of some highly distorted perovskites. The pPv phase of MgSiO3 stabilized under 125 GPa and 2000 K cannot be quenched to ambient pressure. In contrast, the pPv CaIrO3 can be synthesized under a modest pressure or even at ambient pressure. However, the pPv CaIrO3 has not been fully characterized. We report here systematic structural studies, measurements of transport and magnetic properties including critical phenomena, specific heat, and thermal conductivity in a series of samples Ca1-xSrxIrO3 synthesized under high pressure. The Ca1-xSrxIrO3 samples exhibit an evolution from the pPv phase to the perovskite phase. We have also prepared the perovskite (Pv phase) CaIrO3 with the wet chemical method. Rietveld refinements of the pPv and Pv phase CaIrO3 have been made based on high-resolution synchrotron diffraction. In comparison with effects of the chemical substitution on the crystal structure and physical properties, we have studied the structure and magnetic properties of the pPv CaIrO3 under hydrostatic pressure. Results have been discussed in the context of orbital ordering biased on the intrinsic structural distortion and the strong spin-orbit coupling that is much enhanced in these 5d oxides with the pPv structure. C1 [Cheng, J. -G.; Zhou, J. -S.; Goodenough, J. B.] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA. [Cheng, J. -G.; Sui, Y.] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Dept Phys, Harbin 150001, Peoples R China. [Ren, Y.; Suchomel, M. R.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Cheng, JG (reprint author), Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA. EM jszhou@mail.utexas.edu RI Cheng, Jinguang/A-8342-2012; OI SUCHOMEL, Matthew/0000-0002-9500-5079; Goodenough, John Bannister/0000-0001-9350-3034 FU NSF [DMR 0904282]; Robert A Welch foundation [F-1066]; National Science Foundation of China [50672019]; US Department of Energy, Office of Science, Office of Basic Energy Science [DE-Ac02-06cH11357] FX This work was supported by NSF (DMR 0904282) and the Robert A Welch foundation (Grant No. F-1066). Y.S. is grateful for the financial support from the National Science Foundation of China (Grant No. 50672019). Use of the Advanced Photo Source at Argonne National Laboratory was supported by the US Department of Energy, Office of Science, Office of Basic Energy Science, under contract No. DE-Ac02-06cH11357. NR 80 TC 18 Z9 18 U1 2 U2 31 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 9 PY 2011 VL 83 IS 6 AR 064401 DI 10.1103/PhysRevB.83.064401 PG 15 WC Physics, Condensed Matter SC Physics GA 718NQ UT WOS:000287130700002 ER PT J AU Kwon, KD Refson, K Bone, S Qiao, RM Yang, WL Liu, Z Sposito, G AF Kwon, Kideok D. Refson, Keith Bone, Sharon Qiao, Ruimin Yang, Wan-li Liu, Zhi Sposito, Garrison TI Magnetic ordering in tetragonal FeS: Evidence for strong itinerant spin fluctuations SO PHYSICAL REVIEW B LA English DT Article ID IRON SULFIDES; MACKINAWITE FES; 1ST PRINCIPLES; HIGH-PRESSURE; PHOTOEMISSION; MONOSULFIDE; SURFACE; SUPERCONDUCTIVITY; SPECTROSCOPY; SPLITTINGS AB Mackinawite is a naturally occurring layer-type FeS mineral important in biogeochemical cycles and, more recently, in the development of microbial fuel cells. Conflicting results have been published as to the magnetic properties of this mineral, with Mossbauer spectroscopy indicating no magnetic ordering down to 4.2 K but density functional theory (DFT) predicting an antiferromagnetic ground state, similar to the Fe-based high-temperature superconductors with which it is isostructural and for which it is known that magnetism is suppressed by strong itinerant spin fluctuations. We investigated this latter possibility for mackinawite using photoemission spectroscopy, near-edge x-ray absorption fine structure spectroscopy, and DFT computations. Our Fe 3s core-level photoemission spectrum of mackinawite showed a clear exchange-energy splitting (2.9 eV) consistent with a 1 mu(B) magnetic moment on the Fe ions, while the Fe L-edge x-ray absorption spectrum indicated rather delocalized Fe 3d electrons in mackinawite similar to those in Fe metal. Our DFT computations demonstrated that the ground state of mackinawite is single-stripe antiferromagnetic, with an Fe magnetic moment (2.7 mu(B)) that is significantly larger than the experimental estimate and has a strong dependence on the S height and lattice parameters. All of these trends signal the existence of strong itinerant spin fluctuations. If spin fluctuations prove to be mediators of electron pairing, we conjecture that mackinawite may be one of the simplest Fe-based superconductors. C1 [Kwon, Kideok D.; Sposito, Garrison] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Geochem, Berkeley, CA 94720 USA. [Refson, Keith] STFC Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Bone, Sharon; Sposito, Garrison] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA. [Qiao, Ruimin; Yang, Wan-li; Liu, Zhi] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Kwon, KD (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Geochem, Berkeley, CA 94720 USA. EM kkwon@lbl.gov RI Qiao, Ruimin/E-9023-2013; Refson, Keith/G-1407-2013; Yang, Wanli/D-7183-2011; Liu, Zhi/B-3642-2009; OI Yang, Wanli/0000-0003-0666-8063; Liu, Zhi/0000-0002-8973-6561; Refson, Keith/0000-0002-8715-5835 FU Office of Science of the US Department of Energy [DE-AC02-05CH11231]; Office of Energy Research, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231] FX Our computations used resources of the National Energy Research Scientific Computing Center, which is supported by the Office of Science of the US Department of Energy under Contract No. DE-AC02-05CH11231. K.D.K. thanks Dr. A. Mehta for helpful discussion on experimental approaches. The research reported in this paper was supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, of the US Department of Energy under Contract No. DE-AC02-05CH11231. NR 65 TC 27 Z9 28 U1 8 U2 80 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 9 PY 2011 VL 83 IS 6 AR 064402 DI 10.1103/PhysRevB.83.064402 PG 7 WC Physics, Condensed Matter SC Physics GA 718NQ UT WOS:000287130700003 ER PT J AU Piot, P Sun, YE Power, JG Rihaoui, M AF Piot, P. Sun, Y. -E Power, J. G. Rihaoui, M. TI Generation of relativistic electron bunches with arbitrary current distribution via transverse-to-longitudinal phase space exchange SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID LASER; BEAM AB We propose a general method for tailoring the current distribution of relativistic electron bunches. The technique relies on a recently proposed method to exchange the longitudinal phase space emittance with one of the transverse emittances. The method consists of transversely shaping the bunch and then converting its transverse profile into a current profile via a transverse-to-longitudinal phase-space-exchange beam line. We show that it is possible to tailor the current profile to follow, in principle, any desired distributions. We demonstrate, via computer simulations, the application of the method to generate trains of microbunches with tunable spacing and linearly ramped current profiles. We also briefly explore potential applications of the technique. C1 [Piot, P.; Rihaoui, M.] No Illinois Univ, No Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA. [Piot, P.; Rihaoui, M.] No Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Piot, P.; Sun, Y. -E] Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, Batavia, IL 60510 USA. [Power, J. G.] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. RP Piot, P (reprint author), No Illinois Univ, No Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA. FU U.S. Department of Energy [DE-FG02-08ER41532, DE-AC02-07CH11359, DE-AC02-06CH11357] FX We are thankful to the members of the ANL-FNAL-NIU emittance-exchange collaboration, in particular, to M. Church, H. T. Edwards, W. Gai, and K.-J. Kim, for encouragement and fruitful discussions. We thank C. Prokop (NIU) for his comments on the manuscript. The work of M. R. and P. P. was supported by the U.S. Department of Energy under Contract No. DE-FG02-08ER41532 with Northern Illinois University. The work of Y.-E. S. and partially of P. P is supported by the Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy. The work of J. G. P was supported by Argonne National Laboratory under Contract No. DE-AC02-06CH11357 with the U.S. Department of Energy. NR 58 TC 16 Z9 16 U1 2 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB 9 PY 2011 VL 14 IS 2 AR 022801 DI 10.1103/PhysRevSTAB.14.022801 PG 13 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 718PB UT WOS:000287135800001 ER PT J AU Kowalsky, MB Gasperikova, E Finsterle, S Watson, D Baker, G Hubbard, SS AF Kowalsky, M. B. Gasperikova, E. Finsterle, S. Watson, D. Baker, G. Hubbard, S. S. TI Coupled modeling of hydrogeochemical and electrical resistivity data for exploring the impact of recharge on subsurface contamination SO WATER RESOURCES RESEARCH LA English DT Article ID GROUND-PENETRATING RADAR; VADOSE ZONE; GEOPHYSICAL-DATA; RESISTANCE TOMOGRAPHY; HYDROLOGICAL DATA; SOLUTE TRANSPORT; UNSATURATED FLOW; JOINT INVERSION; BOREHOLE RADAR; WATER-CONTENT AB The application of geophysical methods, in particular, electrical resistivity measurements, may be useful for monitoring subsurface contamination. However, interpreting geophysical data without additional data and without considering the associated hydrogeochemical processes is challenging since the geophysical response is sensitive to not only heterogeneity in rock properties but also to the saturation and chemical composition of pore fluids. We present an inverse modeling framework that incorporates the simulation of hydrogeochemical processes and time-lapse electrical resistivity data and apply it to various borehole and cross-borehole data sets collected in 2008 near the S-3 Ponds at the U. S. Department of Energy's Oak Ridge Integrated Field Research Challenge site, where efforts are underway to better understand freshwater recharge and associated contaminant dilution. Our goal is to show that the coupled hydrogeochemical-geophysical modeling framework can be used to (1) develop a model that honors all the available data sets, (2) help understand the response of the geophysical data to subsurface properties and processes at the site, and (3) allow for the estimation of petrophysical parameters needed for interpreting the geophysical data. We present a series of cases involving different data sets and increasingly complex models and find that the approach provides useful information about soil properties, recharge-related transport processes, and the geophysical response. Spatial heterogeneity of the petrophysical model can be described sufficiently with two layers, and its parameters can be estimated concurrently with the hydrogeochemical parameters. For successful application of the approach, the parameters of interest must be sensitive to the available data, and the experimental conditions must be carefully modeled. C1 [Kowalsky, M. B.; Gasperikova, E.; Finsterle, S.; Hubbard, S. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. [Baker, G.] Univ Tennessee, Dept Geol Sci, Knoxville, TN 37996 USA. [Watson, D.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Kowalsky, MB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, 1 Cyclotron Rd,MS 90-1116, Berkeley, CA 94720 USA. EM mbkowalsky@lbl.gov RI Finsterle, Stefan/A-8360-2009; Hubbard, Susan/E-9508-2010; Gasperikova, Erika/D-1117-2015; Watson, David/C-3256-2016 OI Finsterle, Stefan/0000-0002-4446-9906; Gasperikova, Erika/0000-0003-1553-4569; Watson, David/0000-0002-4972-4136 FU U.S. Department of Energy [DE-AC02-05CH11231]; U.S. DOE Office of Biological and Environmental Research; Oak Ridge National Laboratory FX This work was supported by the U.S. Department of Energy, contract DE-AC02-05CH11231, and by the Environmental Remediation Program of the U.S. DOE Office of Biological and Environmental Research as part of the Oak Ridge National Laboratory IFRC study. The authors would like to thank Andreas Kemna (University of Bonn) for the use of the code CRMOD, Marcella Mueller (ORNL) for assistance with the hydrogeochemical data, Jack Parker (ORNL) for input on the site conceptual model, and Akiko Yoshikawa for additional support. We are grateful to Lee Slater, Andrew Binley, Tim Johnson, and an anonymous reviewer for constructive feedback and excellent suggestions for improving the manuscript. NR 49 TC 21 Z9 21 U1 0 U2 9 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0043-1397 EI 1944-7973 J9 WATER RESOUR RES JI Water Resour. Res. PD FEB 9 PY 2011 VL 47 AR W02509 DI 10.1029/2009WR008947 PG 22 WC Environmental Sciences; Limnology; Water Resources SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water Resources GA 721BX UT WOS:000287327500001 ER PT J AU Levin, EM Cook, BA Harringa, JL Bud'ko, SL Venkatasubramanian, R Schmidt-Rohr, K AF Levin, E. M. Cook, B. A. Harringa, J. L. Bud'ko, S. L. Venkatasubramanian, R. Schmidt-Rohr, K. TI Analysis of Ce- and Yb-Doped TAGS-85 Materials with Enhanced Thermoelectric Figure of Merit SO ADVANCED FUNCTIONAL MATERIALS LA English DT Article ID DILUTED MAGNETIC SEMICONDUCTORS; DEFECTS; SYSTEMS; HEAT; GETE; PBTE AB Doping of TAGS-85 with 1 at% Ce or Yb forms a dilute magnetic semiconductor system with non-interacting localized magnetic moments that obey the Curie law. X-ray diffraction patterns and slight broadening in Te-125 NMR, attributed to paramagnetic effects, suggest that Ce and Yb atoms are incorporated into the lattice. Te-125 NMR spin-lattice relaxation and Hall effect show similar hole concentrations of approximate to 10(21) cm(-3). At 700 K, the electric conductivity of the Ce- and Yb-doped samples is similar to that of neat TAGS-85, while the thermal conductivity and the Seebeck coefficient are larger by 6% and 16%, respectively. Possible mechanisms responsible for the observed increase in thermopower may include i) formation of resonance states near the Fermi level and ii) carrier scattering by lattice distortions and/or by paramagnetic ions. Due to the increase in the Seebeck coefficient up to 205 mu V K-1, the thermoelectric power factor of Ce- and Yb-doped samples reaches 36 mu W cm(-1) K-2, which is larger than that measured for neat TAGS-85, 27 mu W cm(-1) K-2. The increase in the Seebeck coefficient overcomes the increase in the thermal conductivity, resulting in a total increase of the figure of merit by approximate to 25% at 700 K compared to that observed for neat TAGS-85. C1 [Levin, E. M.; Cook, B. A.; Harringa, J. L.; Bud'ko, S. L.; Schmidt-Rohr, K.] Iowa State Univ, Ames Lab, US DOE, Div Mat Sci & Engn, Ames, IA 50011 USA. [Levin, E. M.; Bud'ko, S. L.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Venkatasubramanian, R.] RTI, Ctr Solid State Energet, Res Triangle Pk, NC 27709 USA. [Schmidt-Rohr, K.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA. RP Levin, EM (reprint author), Iowa State Univ, Ames Lab, US DOE, Div Mat Sci & Engn, Ames, IA 50011 USA. EM levin@iastate.edu FU DARPA/DSO [W911NF-08-C-0058]; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358] FX The authors wish to thank the Materials Preparation Center at Ames Laboratory for sample synthesis. This research was supported partially by DARPA/DSO Program through an Army Contract No. W911NF-08-C-0058 (B.A.C, J.L.H., R.V.) and by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering (E.M.L., S.L.B, and K.S.R.), under Contract No. DE-AC02-07CH11358. NR 27 TC 32 Z9 34 U1 7 U2 98 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA POSTFACH 101161, 69451 WEINHEIM, GERMANY SN 1616-301X EI 1616-3028 J9 ADV FUNCT MATER JI Adv. Funct. Mater. PD FEB 8 PY 2011 VL 21 IS 3 BP 441 EP 447 DI 10.1002/adfm.201001307 PG 7 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 717LJ UT WOS:000287045100004 ER PT J AU Ma, L Jackson, KA Jellinek, J AF Ma, Li Jackson, Koblar Alan Jellinek, Julius TI Site-specific polarizabilities as predictors of favorable adsorption sites on Na-n clusters SO CHEMICAL PHYSICS LETTERS LA English DT Article ID SILICON CLUSTERS; ALUMINUM; APPROXIMATION; SUPERATOMS; REACTIVITY; CHEMISTRY AB The adsorption of water and ammonia molecules to Na-n (n = 7, 18, and 25) clusters was studied using density functional theory calculations. Calculated adsorption energies are small (<0.4 eV) and vary according to bonding site on the cluster. A recently-developed site-specific analysis of cluster polarizability was used to investigate the correlation between adsorption energy at various binding sites and the corresponding site polarizabilities. The results show that adsorption energies for these molecules are largest at sites corresponding to surface atoms with the largest polarizabilities, indicating that site-specific polarizabilities can be used to predict the most favorable adsorption sites. (C) 2011 Elsevier B. V. All rights reserved. C1 [Ma, Li; Jackson, Koblar Alan] Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA. [Jellinek, Julius] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Jackson, KA (reprint author), Cent Michigan Univ, Dept Phys, Mt Pleasant, MI 48859 USA. EM jackson@phy.cmich.edu; jellinek@anl.gov RI Ma, Li/B-1815-2016; OI Ma, Li/0000-0003-0002-6350; Jackson, Koblar/0000-0002-5342-7978 FU Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, U. S. Department of Energy [DE-SC0001330, DE-AC-02-06CH11357] FX This work was supported by the Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, U. S. Department of Energy under award number DE-SC0001330 (K.A.J. and M. L.) and contract number DE-AC-02-06CH11357 (J.J.). NR 19 TC 3 Z9 3 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD FEB 8 PY 2011 VL 503 IS 1-3 BP 80 EP 85 DI 10.1016/j.cplett.2010.12.049 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 716NA UT WOS:000286976700016 ER PT J AU Tsai, HH Xu, ZH Pai, RK Wang, LY Dattelbaum, AM Shreve, AP Wang, HL Cotlet, M AF Tsai, Hsinhan Xu, Zhihua Pai, Ranjith Krishna Wang, Leeyih Dattelbaum, Andrew M. Shreve, Andrew P. Wang, Hsing-Lin Cotlet, Mircea TI Structural dynamics and charge transfer via complexation with fullerene in large area conjugated polymer honeycomb thin films SO CHEMISTRY OF MATERIALS LA English DT Article ID SEMICONDUCTING BLOCK-COPOLYMERS; SELF-ORGANIZED HONEYCOMB; BREATH FIGURE METHOD; POLYTHIOPHENE DERIVATIVES; MORPHOLOGY; TEMPLATES C1 [Tsai, Hsinhan; Wang, Hsing-Lin] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Xu, Zhihua; Pai, Ranjith Krishna; Cotlet, Mircea] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. [Wang, Leeyih] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan. [Dattelbaum, Andrew M.; Shreve, Andrew P.] Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA. [Dattelbaum, Andrew M.; Shreve, Andrew P.] Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Wang, HL (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA. EM hwang@lanl.gov; cotlet@bnl.gov OI Krishna Pai, Prof. Dr. Ranjith/0000-0003-3323-0876 FU US Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Science and Engineering; Center for Functional Nanomaterials of Brookhaven National Laboratory (US-DOE) [DE-AC02-98CH10886]; Center for Integrated Nanotechnologies at Los Alamos National Laboratory (US-DOE) [DE-AC52-06NA25396]; INL Portugal FX This research was supported by the US Department of Energy (DOE), Office of Basic Energy Sciences, Division of Materials Science and Engineering. Research carried out in part at the Center for Functional Nanomaterials of Brookhaven National Laboratory (US-DOE contract DE-AC02-98CH10886) and at the Center for Integrated Nanotechnologies at Los Alamos National Laboratory (US-DOE contract DE-AC52-06NA25396). R.K.P. acknowledges financial support from INL Portugal. NR 21 TC 19 Z9 19 U1 2 U2 22 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD FEB 8 PY 2011 VL 23 IS 3 BP 759 EP 761 DI 10.1021/cm102160m PG 3 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 712UG UT WOS:000286691100029 ER PT J AU Zhang, W Xu, TF Li, YL AF Zhang, Wei Xu, Tianfu Li, Yilian TI Modeling of fate and transport of coinjection of H2S with CO2 in deep saline formations SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH LA English DT Article ID REACTIVE GEOCHEMICAL TRANSPORT; CARBON-DIOXIDE; ROCK INTERACTIONS; AQUIFER DISPOSAL; FLUID-FLOW; SEQUESTRATION; SIMULATION; STORAGE; PRECIPITATION; DISSOLUTION AB The geological storage of CO2 in deep saline formations is increasingly seen as a viable strategy to reduce the release of greenhouse gases into the atmosphere. However, costs of capture and compression of CO2 from industrial waste streams containing small quantities of sulfur and nitrogen compounds such as SO2, H2S, and N-2 are very expensive. Therefore, studies on the coinjection of CO2 containing other acid gases from industrial emissions are very important. In this paper, numerical simulations were performed to study the coinjection of H2S with CO2 in sandstone and carbonate formations. Results indicate that the preferential dissolution of H2S gas (compared with CO2 gas) into formation water results in the delayed breakthrough of H2S gas. Coinjection of H2S results in the precipitation of pyrite through interactions between the dissolved H2S and Fe2+ from the dissolution of Fe-bearing minerals. Additional injection of H2S reduces the capabilities for solubility and mineral trappings of CO2 compared to the CO2-only case. In comparison to the sandstone (siliciclastic) formation, the carbonate formation is less favorable to the mineral sequestration of CO2. In sandstone and carbonate formations, the presence of Fe-bearing siliciclastic and/or carbonate is more favorable to the H2S mineral trapping. C1 [Zhang, Wei; Li, Yilian] China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China. [Xu, Tianfu] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. RP Zhang, W (reprint author), China Univ Geosci, Sch Environm Studies, Wuhan 430074, Peoples R China. EM Zhangweicug@gmail.com; Tianfu_xu@lbl.gov; Yl.li@cug.edu.cn RI Zhang, Wei/E-4440-2010 OI Zhang, Wei/0000-0001-9620-1023 FU China Scholarship Council (CSC); National Natural Science Foundation of China (NSFC) [40872158, 40672168]; U.S. Department of Energy [DE-AC02-05CH11231]; Lawrence Berkeley National Laboratory; Global Climate and Energy Project (GCEP) [2384638-43106-A] FX The authors would like to thank two anonymous reviewers and the Associate Editor for their constructive comments and suggestions during the review process, which greatly improved the quality of the paper. The first author (Wei Zhang) was supported by the China Scholarship Council (CSC) and by the National Natural Science Foundation of China (NSFC, 40872158). The second author (Tianfu Xu) was supported by the Zero Emission Research and Technology project (ZERT) of the U.S. Department of Energy under contract DE-AC02-05CH11231 with Lawrence Berkeley National Laboratory. The third author (Yilian Li) was supported by the National Natural Science Foundation of China (NSFC, 40672168 and 40872158) and the Global Climate and Energy Project (GCEP, subcontract 2384638-43106-A). The support provided by Lawrence Berkeley National Laboratory during Wei Zhang's visit to Berkeley is also acknowledged. NR 42 TC 7 Z9 7 U1 2 U2 39 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-9313 EI 2169-9356 J9 J GEOPHYS RES-SOL EA JI J. Geophys. Res.-Solid Earth PD FEB 8 PY 2011 VL 116 AR B02202 DI 10.1029/2010JB007652 PG 13 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 721AW UT WOS:000287324800002 ER PT J AU Fehske, H Wellein, G Bishop, AR AF Fehske, H. Wellein, G. Bishop, A. R. TI Spatiotemporal evolution of polaronic states in finite quantum systems SO PHYSICAL REVIEW B LA English DT Article ID HOLSTEIN POLARON; MODEL; ELECTRONS; EXCITONS; MOTION AB We study the quantum dynamics of small polaron formation and polaron transport through finite quantum structures in the framework of the one-dimensional Holstein model with site-dependent potentials and interactions. Combining Lanczos diagonalization with Chebyshev moment expansion of the time evolution operator, we determine how different initial states, representing stationary ground states or injected wave packets, after an electron-phonon interaction quench, develop in real space and time. Thereby, the full quantum nature and dynamics of electrons and phonons is preserved. We find that the decay out of the initial state sensitively depends on the energy and momentum of the incoming particle, the electron-phonon coupling strength, and the phonon frequency, whereupon bound polaron-phonon excited states may emerge in the strong-coupling regime. The tunneling of a Holstein polaron through a quantum wall or dot is generally accompanied by strong phonon number fluctuations due to phonon emission and reabsorption processes. C1 [Fehske, H.] Ernst Moritz Arndt Univ Greifswald, Inst Phys, D-17487 Greifswald, Germany. [Wellein, G.] Univ Erlangen Nurnberg, Reg Rechenzentrum Erlangen, D-91058 Erlangen, Germany. [Bishop, A. R.] Los Alamos Natl Lab, Theory Simulat & Computat Directorate, Los Alamos, NM 87545 USA. RP Fehske, H (reprint author), Ernst Moritz Arndt Univ Greifswald, Inst Phys, D-17487 Greifswald, Germany. FU KONWIHR Bavaria; US Department of Energy FX The authors would like to thank A. Alvermann, J. Loos, G. Schubert, and S. A. Trugman for valuable discussions. H. F. and G. W. acknowledge the hospitality at Los Alamos National Laboratory. This work was supported by KONWIHR Bavaria (H. F., G. W.) and the US Department of Energy (A. R. B.). Numerical calculations were performed at the LRZ Munich. NR 43 TC 16 Z9 17 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD FEB 8 PY 2011 VL 83 IS 7 AR 075104 DI 10.1103/PhysRevB.83.075104 PG 12 WC Physics, Condensed Matter SC Physics GA 717WI UT WOS:000287077700003 ER PT J AU Tang, ML Bao, ZA AF Tang, Ming L. Bao, Zhenan TI Halogenated Materials as Organic Semiconductors SO CHEMISTRY OF MATERIALS LA English DT Review ID THIN-FILM TRANSISTORS; FIELD-EFFECT TRANSISTORS; CHARGE-TRANSPORT PROPERTIES; HIGH-ELECTRON-MOBILITY; HIGH-PERFORMANCE; BUILDING-BLOCKS; TRIFLUOROMETHYLPHENYL GROUPS; TETRACENE DERIVATIVES; POLYMERIC ELECTRONICS; NAPHTHALENE DIIMIDES AB Organic semiconductors have great potential as the active material in low-cost, large area plastic electronics, whether as light-emitting diodes (LEDs), field-effect transistors (FETs) or solar cells. Organic semiconducting materials retain the processability associated with polymers while maintaining good optoelectronic properties, for example, high absorption coefficients for photons in the visible, and field-effect mobilities comparable with that of amorphous silicon. The elucidation of important structure property relationships is vital for the design of functional, high-performance organic semiconductors. In this short review, we summarize such relationships stemming from the halogenation of organic semiconductors. While it has been known in the past decade that fluorination lowers the energy levels in carbon based systems, induces stability and electron transport, less is known about the effect of the other halogens. Chlorination has recently been shown to be a viable route to n-type materials. The bandgap of conjugated compounds can also be decreased slightly by the addition of Cl, Br, and I to the aromatic core. The effect of the halogenated moieties on the packing of molecules is discussed. C1 [Bao, Zhenan] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA. [Tang, Ming L.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Tang, Ming L.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Bao, ZA (reprint author), Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA. EM zbao@stanford.edu FU Air Force Office of Scientific Research [FA9550-09-1-0256]; NSF Solid State Chemistry [DMR-0705687-002] FX This work is supported by the Air Force Office of Scientific Research (FA9550-09-1-0256) and NSF Solid State Chemistry (DMR-0705687-002). NR 79 TC 152 Z9 153 U1 16 U2 143 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD FEB 8 PY 2011 VL 23 IS 3 BP 446 EP 455 DI 10.1021/cm102182x PG 10 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 712UG UT WOS:000286691100010 ER PT J AU Huang, JS Sumpter, BG Meunier, V Tian, YH Kertesz, M AF Huang, Jingsong Sumpter, Bobby G. Meunier, Vincent Tian, Yong-Hui Kertesz, Miklos TI Cyclo-biphenalenyl Biradicaloid Molecular Materials: Conformation, Tautomerization, Magnetism, and Thermochromism SO CHEMISTRY OF MATERIALS LA English DT Article ID DENSITY-FUNCTIONAL THEORY; AB-INITIO CALCULATIONS; RESONATING VALENCE-BOND; RADICAL PI-DIMERS; COPE REARRANGEMENT; ELECTRONIC-STRUCTURE; SOLID-STATE; SIGMA-BOND; DIFFERENTIAL-OVERLAP; INTERMEDIATE NEGLECT AB Phenalenyl and its derivatives have recently attracted a great deal of interest as a result of a two-electron multicenter (2e/mc) pi-pi bonding between two pi-stacked phenalenyl units. The 2e/mc bonded pi-dimers are close in energy to the a-dimers of phenalenyl and therefore fickle properties may emerge from bond fluctuation, yielding "smart" mu-functional materials. Here, we examine the valence tautomerization of two cyclo-biphenalenyl biradicaloid molecular materials with chair and boat conformations by spin-restricted (R) and unrestricted (U) DFT using the M06 and B3LYP functionals. We found that the chair conformation involves a 2e/4c pi-pi bonded structure, whereas the boat conformation involves a 2e/12c pi-pi bonded structure on their potential energy surfaces. The global minimum for the chair conformation is the sigma-bonded structure, whereas it is the pi-pi bonded structure for the boat conformation. The chair conformation exhibits a stepwise [3,3]-sigmatropic rearrangement, and calculations predict a negligible paramagnetic susceptibility near room temperature. In comparison, the paramagnetism of the boat conformation should be observable by SQUID and ESR. According to the energy differences of the respective sigma- and pi-dimers of the two conformations and the UV-vis calculations, the color of the chair conformation is expected to become darker, whereas that of the boat conformation should become lighter with increasing temperature. C1 [Huang, Jingsong; Sumpter, Bobby G.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Meunier, Vincent] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA. [Tian, Yong-Hui; Kertesz, Miklos] Georgetown Univ, Dept Chem, Washington, DC 20057 USA. RP Sumpter, BG (reprint author), Oak Ridge Natl Lab, Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM sumpterbg@ornl.gov; kertesz@georgetown.edu RI Huang, Jingsong/A-2789-2008; Meunier, Vincent/F-9391-2010; Tian, Yong-Hui/H-2448-2012; Sumpter, Bobby/C-9459-2013; Kertesz, Miklos/E-7122-2010 OI Huang, Jingsong/0000-0001-8993-2506; Meunier, Vincent/0000-0002-7013-179X; Sumpter, Bobby/0000-0001-6341-0355; Kertesz, Miklos/0000-0002-7930-3260 FU Scientific User Facilities Division, U.S. Department of Energy [CNMS2010-232]; U.S. National Science Foundation FX Research at the Center for Nano-phase Materials Sciences (CNMS) at Oak Ridge National Laboratory was sponsored by the Scientific User Facilities Division, U.S. Department of Energy (user project CNMS2010-232 to MK). The authors at Georgetown University thank the U.S. National Science Foundation for its support of the research at Georgetown University. We are grateful to Drs. R. J. Harrison and E. Apra for the discussions and help with broken symmetry calculations in NWChem and to Prof. D. J. Tantillo for the insightful discussions on Cope rearrangements. NR 94 TC 9 Z9 9 U1 2 U2 20 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD FEB 8 PY 2011 VL 23 IS 3 BP 874 EP 885 DI 10.1021/cm102320b PG 12 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 712UG UT WOS:000286691100045 ER PT J AU Drummy, LF Davis, RJ Moore, DL Durstock, M Vaia, RA Hsu, JWP AF Drummy, Lawrence F. Davis, Robert J. Moore, Diana L. Durstock, Michael Vaia, Richard A. Hsu, Julia W. P. TI Molecular-Scale and Nanoscale Morphology of P3HT:PCBM Bulk Heterojunctions: Energy-Filtered TEM and Low-Dose HREM SO CHEMISTRY OF MATERIALS LA English DT Article ID POLYMER SOLAR-CELLS; ELECTRON-MICROSCOPY; EXCITON DIFFUSION; POLY(3-HEXYLTHIOPHENE); ORGANIZATION; FILMS; PERFORMANCE; TRANSISTORS; RESOLUTION; MOBILITY AB The performance of bulk heterojunction organic photovoltaic devices is critically dependent on the morphology of the active layer. Here we describe the combination of two electron microscopy techniques to quantitatively examine the molecular level structure and mesoscopic domain morphology of the active layer of poly(3-hexylthiophene):[6,6]-phenyl-C(61)-butyric acid methyl ester P3HT: PCBM bulk heterojunction solar cells. Energy-filtered transmission electron microscopy (EFTEM) revealed the nanoscopic, interpenetrating fibrillar structure of the phase separated blend, providing unique assignments of the P3HT-rich and PCBM-rich regions. Low-dose high-resolution electron microscopy (LD-HREM) provided direct images of the P3HT crystals and their orientation within the P3HT-rich domains. The high mobility [010] crystallographic direction of these crystals coincides with the P3HT fibril axis. Additionally, the width of the P3HT crystallite coincides with the width of the P3HT-rich fibril, and is less than that of P3HT crystals in comparably processed pure P3HT films. The local crystallite structure within the blend is commensurate with the constraints of the nanoscale interpenetrating morphology and confirms the intimate relationship between processing protocols, which define the mesoscale phase-separated domains, and the molecular level ordering within the domains, which determines local transport characteristics. C1 [Drummy, Lawrence F.; Durstock, Michael; Vaia, Richard A.] USAF, Mat & Mfg Directorate, Res Lab, Wright Patterson AFB, OH 45433 USA. [Davis, Robert J.; Moore, Diana L.] Sandia Natl Labs, Albuquerque, NM 87815 USA. [Hsu, Julia W. P.] Sandia Natl Labs, Ctr Integrated Nanotechnol, Albuquerque, NM 87185 USA. RP Drummy, LF (reprint author), USAF, Mat & Mfg Directorate, Res Lab, Wright Patterson AFB, OH 45433 USA. EM lawrence.drummy@wpafb.af.mil FU Air Force Office of Scientific Research; Air Force Research Laboratory; Materials and Manufacturing Directorate; Center for Integrated Nanotechnologies; U.S. Department of Energy, Office of Basic Energy Sciences; United States Department of Energy [DE-AC04-94AL85000] FX The authors thank Dr. John Russ for helpful discussion regarding image segmentation and quantitative analysis. Microscopy was performed in the Materials Characterization Facility at the Materials and Manufacturing Directorate. The authors acknowledge the Air Force Office of Scientific Research, the Air Force Research Laboratory and the Materials and Manufacturing Directorate for funding. This work was performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences user facility. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lock-heed Martin Company, for the United States Department of Energy under contrast DE-AC04-94AL85000. NR 39 TC 68 Z9 68 U1 5 U2 75 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD FEB 8 PY 2011 VL 23 IS 3 BP 907 EP 912 DI 10.1021/cm102463t PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 712UG UT WOS:000286691100048 ER PT J AU Berg, LK Berkowitz, CM Barnard, JC Senum, G Springston, SR AF Berg, Larry K. Berkowitz, Carl M. Barnard, James C. Senum, Gunnar Springston, Stephen R. TI Observations of the first aerosol indirect effect in shallow cumuli SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID DROPLET-SIZE DISTRIBUTIONS; STRATOCUMULUS CLOUDS; SOLAR-RADIATION; ALBEDO; ABSORPTION; CARBON AB Data from the Cumulus Humilis Aerosol Processing Study (CHAPS) are used to estimate the impact of both aerosol indirect effects and cloud dynamics on the microphysical and optical properties of shallow cumuli observed in the vicinity of Oklahoma City, Oklahoma. Not surprisingly, we find that the amount of light scattered by clouds is dominated by their liquid water content (LWC), which in turn is driven by buoyancy and cloud dynamics. However, removing the effect of cloud dynamics by examining the scattering normalized by LWC shows a statistically significant sensitivity of scattering to pollutant loading (increasing at a rate of 0.002 m(2) g(-1) ppbv(-1)). These results suggest that even moderately sized cities, like Oklahoma City, can have a measureable impact on the optical properties of shallow cumuli. Citation: Berg, L. K., C. M. Berkowitz, J. C. Barnard, G. Senum, and S. R. Springston (2011), Observations of the first aerosol indirect effect in shallow cumuli, Geophys. Res. Lett., 38, L03809, doi:10.1029/2010GL046047. C1 [Berg, Larry K.; Berkowitz, Carl M.; Barnard, James C.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Senum, Gunnar; Springston, Stephen R.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Berg, LK (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA. RI Berg, Larry/A-7468-2016 OI Berg, Larry/0000-0002-3362-9492 FU U.S. Department of Energy (DOE), Office of Biological and Environmental Research, Climate and Environmental Sciences Division; U.S. DOE [DE_AC05-76RL01830] FX This work was supported by the U.S. Department of Energy (DOE) Atmospheric Systems Research Program, which is part of the Office of Biological and Environmental Research, Climate and Environmental Sciences Division. The Pacific Northwest National Laboratory (PNNL) is operated by Battelle Memorial Institute for the U.S. DOE under contract DE_AC05-76RL01830. M. Ovchinnkov of PNNL, M. Barth of NCAR, and L. Kleinman of Brookhaven National Laboratory provided comments on this manuscript. NR 21 TC 16 Z9 16 U1 1 U2 7 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0094-8276 EI 1944-8007 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD FEB 8 PY 2011 VL 38 AR L03809 DI 10.1029/2010GL046047 PG 5 WC Geosciences, Multidisciplinary SC Geology GA 720ZK UT WOS:000287321000002 ER PT J AU Verduzco, R Botiz, I Pickel, DL Kilbey, SM Hong, KL Dimasi, E Darling, SB AF Verduzco, Rafael Botiz, Ioan Pickel, Deanna L. Kilbey, S. Michael, II Hong, Kunlun Dimasi, Elaine Darling, Seth B. TI Polythiophene-block-polyfluorene and Polythiophene-block-poly(fluorene-co-benzothiadiazole): Insights into the Self-Assembly of All-Conjugated Block Copolymers SO MACROMOLECULES LA English DT Article ID HETEROJUNCTION SOLAR-CELLS; ORGANIC PHOTOVOLTAIC CELL; FIELD-EFFECT TRANSISTORS; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); MICROPHASE SEPARATION; POLYMER BLENDS; DIBLOCK; DEVICES; CHAIN; FLUORENE AB All-conjugated block copolymers have significant potential for solution-processed optoelectronic applications, in particular those relying on a p/n junction. Herein, we report the synthesis and structure of all-conjugated diblock copolymers poly(3-hexylthiophene)-block-poly(9,9-dioctylfluorene) and poly (3-hexylthiophene)-block-poly(9,9-dioctylfluorene-co-benzothiadiazole) in thin films and in the bulk. The diblock copolymers are prepared using a combination of Grignard metathesis polymerization and Suzuki polycondensation and characterized with NMR spectroscopy, size-exclusion chromatography, multiangle laser light scattering, and UV/vis spectroscopy. Structure in thin films and in the bulk is characterized using differential scanning calorimetry, X-ray diffraction, small-angle X-ray scattering, and atomic force microscopy. Diblock copolymer thin films self-assemble into a crystalline nanostructure with some long-range order after extended solvent annealing, and X-ray scattering measurements show that powder samples exhibit crystallinity throughout the bulk. By temperature dependent X-ray scattering measurements, we find that diblock copolymers self-assemble into crystalline nanowires with phase segregated block copolymer domains. These measurements show all-conjugated diblock copolymers may be useful for achieving solution-processed active layers in organic photovoltaics and light-emitting diodes with optimized structural and photophysical characteristics. C1 [Verduzco, Rafael] Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA. [Botiz, Ioan; Darling, Seth B.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Pickel, Deanna L.; Kilbey, S. Michael, II; Hong, Kunlun] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Kilbey, S. Michael, II] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Dimasi, Elaine] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. RP Verduzco, R (reprint author), Rice Univ, Dept Chem & Biomol Engn, 6100 Main St,MS-362, Houston, TX 77005 USA. EM rafaelv@rice.edu; darling@anl.gov RI Pickel, Deanna/E-4778-2010; Botiz, Ioan/I-3209-2012; Hong, Kunlun/E-9787-2015 OI Botiz, Ioan/0000-0002-8555-1084; Hong, Kunlun/0000-0002-2852-5111 FU Welch Foundation [C-1750]; Louis Owen Foundation; Rice University School of Engineering; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DEAC02-06-CH11357, DE-AC02-98CH10886] FX R.V. acknowledges financial support from the Welch Foundation (Grant No. C-1750), the Louis Owen Foundation, and the Rice University School of Engineering start-up funds. Use of the Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract DEAC02-06-CH11357. A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy. Use of the National Synchrotron Light Source, Brookhaven National Laboratory, was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. NR 58 TC 82 Z9 85 U1 2 U2 83 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD FEB 8 PY 2011 VL 44 IS 3 BP 530 EP 539 DI 10.1021/ma102728z PG 10 WC Polymer Science SC Polymer Science GA 712UK UT WOS:000286691500016 ER PT J AU Vaden, TD Imre, D Beranek, J Shrivastava, M Zelenyuk, A AF Vaden, Timothy D. Imre, Dan Beranek, Josef Shrivastava, Manish Zelenyuk, Alla TI Evaporation kinetics and phase of laboratory and ambient secondary organic aerosol SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE single-particle mass spectrometry; morphology ID ALPHA-PINENE; PARTICLES; VOLATILITY; OZONOLYSIS; CHEMISTRY; DENSITY; SIZE AB Field measurements of secondary organic aerosol (SOA) find significantly higher mass loads than predicted by models, sparking intense effort focused on finding additional SOA sources but leaving the fundamental assumptions used by models unchallenged. Current air-quality models use absorptive partitioning theory assuming SOA particles are liquid droplets, forming instantaneous reversible equilibrium with gas phase. Further, they ignore the effects of adsorption of spectator organic species during SOA formation on SOA properties and fate. Using accurate and highly sensitive experimental approach for studying evaporation kinetics of size-selected single SOA particles, we characterized room-temperature evaporation kinetics of laboratory-generated a-pinene SOA and ambient atmospheric SOA. We found that even when gas phase organics are removed, it takes similar to 24 h for pure a-pinene SOA particles to evaporate 75% of their mass, which is in sharp contrast to the similar to 10 min time scale predicted by current kinetic models. Adsorption of "spectator" organic vapors during SOA formation, and aging of these coated SOA particles, dramatically reduced the evaporation rate, and in some cases nearly stopped it. Ambient SOA was found to exhibit evaporation behavior very similar to that of laboratory-generated coated and aged SOA. For all cases studied in this work, SOA evaporation behavior is nearly size-independent and does not follow the evaporation kinetics of liquid droplets, in sharp contrast with model assumptions. The findings about SOA phase, evaporation rates, and the importance of spectator gases and aging all indicate that there is need to reformulate the way SOA formation and evaporation are treated by models. C1 [Vaden, Timothy D.; Beranek, Josef; Shrivastava, Manish; Zelenyuk, Alla] Pacific NW Natl Lab, Richland, WA 99352 USA. [Imre, Dan] Imre Consulting, Richland, WA 99352 USA. RP Zelenyuk, A (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA. EM Alla.Zelenyuk@pnl.gov FU US Department of Energy Office of Basic Energy Sciences; Office of Biological and Environmental Research; Department of Energy's Office of Biological and Environmental Research at Pacific Northwest National Laboratory (PNNL); Battelle Memorial Institute [DE-AC0676RL0 1830]; Division of Chemical Sciences, Geosciences, and Biosciences FX The authors thank Prof. Paul Ziemann, Prof. Pete McMurry, and Dr. Chen Song for helpful discussions. Special thanks to Mr. Mike Ezell for his help with manufacturing Teflon bags and Dr. Ilona Riipinen and Dr. Richard Easter for initial help with model configuration. This work was supported by the US Department of Energy Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences and Office of Biological and Environmental Research. This research was performed in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research at Pacific Northwest National Laboratory (PNNL). PNNL is operated by the US Department of Energy by Battelle Memorial Institute under Contract DE-AC0676RL0 1830. NR 32 TC 155 Z9 156 U1 14 U2 119 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD FEB 8 PY 2011 VL 108 IS 6 BP 2190 EP 2195 DI 10.1073/pnas.1013391108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 717YH UT WOS:000287084500007 PM 21262848 ER PT J AU Nechushtai, R Lammert, H Michaeli, D Eisenberg-Domovich, Y Zuris, JA Luca, MA Capraro, DT Fish, A Shimshon, O Roy, M Schug, A Whitford, PC Livnah, O Onuchic, JN Jennings, PA AF Nechushtai, Rachel Lammert, Heiko Michaeli, Dorit Eisenberg-Domovich, Yael Zuris, John A. Luca, Maria A. Capraro, Dominique T. Fish, Alex Shimshon, Odelia Roy, Melinda Schug, Alexander Whitford, Paul C. Livnah, Oded Onuchic, Jose N. Jennings, Patricia A. TI Allostery in the ferredoxin protein motif does not involve a conformational switch SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE electron transfer; functional energy landscape; iron-sulfur proteins; protein folding ID TERMINAL SRC KINASE; HYDROGEN-DEUTERIUM EXCHANGE; PLANT-TYPE FERREDOXINS; STRUCTURE-BASED MODELS; ADENYLATE KINASE; CRYSTAL-STRUCTURE; ENERGY LANDSCAPE; ANGSTROM RESOLUTION; 2FE-2S FERREDOXIN; DYNAMICS AB Regulation of protein function via cracking, or local unfolding and refolding of substructures, is becoming a widely recognized mechanism of functional control. Oftentimes, cracking events are localized to secondary and tertiary structure interactions between domains that control the optimal position for catalysis and/or the formation of protein complexes. Small changes in free energy associated with ligand binding, phosphorylation, etc., can tip the balance and provide a regulatory functional switch. However, understanding the factors controlling function in single-domain proteins is still a significant challenge to structural biologists. We investigated the functional landscape of a single-domain plant-type ferredoxin protein and the effect of a distal loop on the electron-transfer center. We find the global stability and structure are minimally perturbed with mutation, whereas the functional properties are altered. Specifically, truncating the L1,2 loop does not lead to large-scale changes in the structure, determined via X-ray crystallography. Further, the overall thermal stability of the protein is only marginally perturbed by the mutation. However, even though the mutation is distal to the iron-sulfur cluster (similar to 20 angstrom), it leads to a significant change in the redox potential of the iron-sulfur cluster (57 mV). Structure-based all-atom simulations indicate correlated dynamical changes between the surface-exposed loop and the iron-sulfur cluster-binding region. Our results suggest intrinsic communication channels within the ferredoxin fold, composed of many short-range interactions, lead to the propagation of long-range signals. Accordingly, protein interface interactions that involve L1,2 could potentially signal functional changes in distal regions, similar to what is observed in other allosteric systems. C1 [Lammert, Heiko; Schug, Alexander; Onuchic, Jose N.] Univ Calif San Diego, Ctr Theoret Biol Phys, La Jolla, CA 92093 USA. [Lammert, Heiko; Schug, Alexander; Onuchic, Jose N.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA. [Nechushtai, Rachel; Michaeli, Dorit; Eisenberg-Domovich, Yael; Fish, Alex; Shimshon, Odelia; Livnah, Oded] Hebrew Univ Jerusalem, Inst Life Sci, IL-91904 Jerusalem, Israel. [Nechushtai, Rachel; Michaeli, Dorit; Eisenberg-Domovich, Yael; Fish, Alex; Shimshon, Odelia; Livnah, Oded] Hebrew Univ Jerusalem, Wolfson Ctr Appl Struct Biol, IL-91904 Jerusalem, Israel. [Zuris, John A.; Luca, Maria A.; Capraro, Dominique T.; Roy, Melinda; Jennings, Patricia A.] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA. [Schug, Alexander] Umea Univ, Dept Chem, Umea, Sweden. [Whitford, Paul C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Onuchic, JN (reprint author), Univ Calif San Diego, Ctr Theoret Biol Phys, 9500 Gilman Dr, La Jolla, CA 92093 USA. EM jonuchic@ctbp.ucsd.edu; pajennin@ucsd.edu FU National Science Foundation (NSF) [PHY-0822283, NSF-MCB-1051438]; National Institutes of Health [GM-54038]; Los Alamos National Laboratory; Israel Science Foundation [ISF-863/09] FX We are thankful to Sichun Yang for many scientific discussions in the early stages of this research. This work was supported by the Center for Theoretical Biological Physics sponsored by the National Science Foundation (NSF) (Grant PHY-0822283) and NSF Grant NSF-MCB-1051438, National Institutes of Health Grant GM-54038, and the Los Alamos National Laboratory Laboratory Directed Research and Development program. R.N. acknowledges Israel Science Foundation ISF-863/09. P.C.W. is funded by a Los Alamos National Laboratory Director's Postdoctoral Fellowship. NR 64 TC 15 Z9 15 U1 0 U2 11 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD FEB 8 PY 2011 VL 108 IS 6 BP 2240 EP 2245 DI 10.1073/pnas.1019502108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 717YH UT WOS:000287084500016 PM 21266547 ER PT J AU Sandoz, G Bell, SC Isacoff, EY AF Sandoz, Guillaume Bell, Sarah C. Isacoff, Ehud Y. TI Optical probing of a dynamic membrane interaction that regulates the TREK1 channel SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE ion channel; two-pore-domain K(+); phosphatidylinositol-4,5-biphosphate; Prozac ID RECTIFYING K+ CHANNELS; POTASSIUM CHANNEL; CI-VSP; INDUCED INHIBITION; ARACHIDONIC-ACID; VOLTAGE SENSOR; ACTIVATION; CELLS; PHOSPHOINOSITIDES; EXPRESSION AB TREK channels produce background currents that regulate cell excitability. These channels are sensitive to a wide variety of stimuli including polyunsaturated fatty acids (PUFAs), phospholipids, mechanical stretch, and intracellular acidification. They are inhibited by neurotransmitters, hormones, and pharmacological agents such as the antidepressant fluoxetine. TREK1 knockout mice have impaired PUFA-mediated neuroprotection to ischemia, reduced sensitivity to volatile anesthetics, altered perception of pain, and a depression-resistant phenotype. Here, we investigate TREK1 regulation by Gq-coupled receptors (GqPCR) and phospholipids. Several reports indicate that the C-terminal domain of TREK1 is a key regulatory domain. We developed a fluorescent-based technique that monitors the plasma membrane association of the C terminus of TREK1 in real time. Our fluorescence and functional experiments link the modulation of TREK1 channel function by internal pH, phospholipid, and GqPCRs to TREK1-C-terminal domain association to the plasma membrane, where increased association results in greater activity. In keeping with this relation, inhibition of TREK1 current by fluoxetine is found to be accompanied by dissociation of the C-terminal domain from the membrane. C1 [Sandoz, Guillaume; Isacoff, Ehud Y.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. [Sandoz, Guillaume; Isacoff, Ehud Y.] Univ Calif Berkeley, Helen Wills Neurosci Inst, Berkeley, CA 94720 USA. [Sandoz, Guillaume] CNRS, Inst Pharmacol Mol & Cellulaire, F-06560 Valbonne, France. [Sandoz, Guillaume] Univ Nice Sophia Antipolis, F-06560 Valbonne, France. [Bell, Sarah C.; Isacoff, Ehud Y.] Univ Calif Berkeley, Chem Biol Grad Program, Berkeley, CA 94720 USA. [Isacoff, Ehud Y.] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. RP Isacoff, EY (reprint author), Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA. EM ehud@berkeley.edu OI Sandoz, Guillaume/0000-0003-1251-0852 FU Fulbright Foundation; Philippe Foundation; National Institutes of Health [R01 NS35549] FX We thank S. Wiese and T. Kim for excellent technical assistance; J. Levitz, R. Arant, J. Patti, and S. Kohout for helpful discussion; and the Fulbright Foundation (G.S.), Philippe Foundation (G.S.), and the National Institutes of Health (R01 NS35549) (to E.Y.I.) for support. NR 38 TC 32 Z9 32 U1 0 U2 10 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD FEB 8 PY 2011 VL 108 IS 6 BP 2605 EP 2610 DI 10.1073/pnas.1015788108 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 717YH UT WOS:000287084500078 PM 21262820 ER PT J AU Graham, KR Bowden, ME Kemmitt, T AF Graham, Kathryn R. Bowden, Mark E. Kemmitt, Tim TI Synthesis and Characterization of Methylammonium Borohydride SO INORGANIC CHEMISTRY LA English DT Article ID HYDROGEN STORAGE MATERIALS; THERMAL-DECOMPOSITION; AMMONIA BORANE; NEUTRON-DIFFRACTION; AMIDOBORANES; METHYLAMINE; DIBORANE; RELEASE AB A new borohydride, [CH3NH3](+)[BH4](-), has been synthesized through the metathesis of CH3NH3F and NaBH4 in methylamine. Room-temperature X-ray diffraction studies have shown that [CH3NH3](+)[BH4](-) adopts a tetragonal unit cell with considerable hydrogen mobility similar to that observed in NH3BH3. The kinetics and thermodynamics of hydrogen release have been investigated and were found to follow a similar pathway to that of [NH4](+)[BH4](-). Decomposition of [CH3NH3](+)[BH4](-) occurred slowly at room temperature and rapidly at ca. 40 degrees C to form [BH2(CH3NH2)(2)](+)[BH4](-), the methylated analogue of the diammoniate of diborane. The decomposition has been investigated by means of in situ X-ray diffraction and solid state B-11 NMR spectroscopy and occurred in the absence of any detectable intermediates to form crystalline [BH2(CH3NH2)(2)](+)[BH4](-)center dot[(CH3)(2)NH2](+)[BH4](-) and [BH2{(CH3)(2)NH}(2)](+)[BH4](-) have also been synthesized through analogous routes, indicating a more general applicability of the synthetic method. C1 [Graham, Kathryn R.; Bowden, Mark E.; Kemmitt, Tim] MacDiarmid Inst Adv Mat & Nanotechnol, Wellington 6140, New Zealand. [Bowden, Mark E.] Pacific NW Natl Lab, Richland, WA 99352 USA. [Kemmitt, Tim] Ind Res Ltd, Lower Hutt, New Zealand. RP Graham, KR (reprint author), MacDiarmid Inst Adv Mat & Nanotechnol, POB 600, Wellington 6140, New Zealand. EM k.benge@irl.cri.nz FU Mac-Diarmid Institute for Advanced Materials and Nanotechnology; Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory FX The authors gratefully acknowledge the contributions made from discussions with our International Partnership for the Hydrogen Economy collaborators, especially Drs. Tom Autrey (Pacific Northwest National Lab), Martin Owen Jones (University of Oxford), and Bill David (Rutherford-Appleton Lab). Funding for this work was kindly provided by the Mac-Diarmid Institute for Advanced Materials and Nanotechnology. A portion of the research was performed using EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. NR 25 TC 3 Z9 3 U1 1 U2 12 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD FEB 7 PY 2011 VL 50 IS 3 BP 932 EP 936 DI 10.1021/ic1015719 PG 5 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 712TI UT WOS:000286688700030 PM 21210645 ER PT J AU Jin, GB Skanthakumar, S Haire, RG Soderholm, L Ibers, JA AF Jin, Geng Bang Skanthakumar, S. Haire, Richard G. Soderholm, L. Ibers, James A. TI Syntheses, Structures, and Magnetic Properties of Np3S5 and Np3Se5 SO INORGANIC CHEMISTRY LA English DT Article ID CRYSTAL-STRUCTURE; NEPTUNIUM CHALCOGENIDES; URANIUM CHALCOGENIDES; TRANSPORT-PROPERTIES; U3S5; SUSCEPTIBILITY; SELENIDES; THORIUM; SULFIDE AB Black prisms of Np(3)Q(5) (Q = S, Se) have been synthesized by the stoichiometric reactions between Np and Q at 1173 K in a CsCl flux. The structures of these compounds were characterized by single-crystal X-ray diffraction methods. The Np(3)Q(5) compounds are isostructural with U(3)Q(5). The structure of Np(3)Q(5) is constructed from layers of Np(1)Q(8) distorted bicapped trigonal prisms that share faces with each other on bc planes. Each Np(1)Q(8) layer further shares Q(2) edges with two adjacent identical neighbors to form a three-dimensional framework. The space inside each channel within this framework is filled by one single edge-sharing Np(2)Q(7) distorted 7-octahedron chain running along the b axis. Magnetic susceptibility measurements show that Np3S5 and Np3Se5 have antiferromagnetic orderings at 35(1) and 36(1) K, respectively. Above the magnetic ordering temperatures, both Np3S5 and Np3Se5 behave as typical Curie-Weiss paramagnets. The effective moments obtained from the fit of the magnetic data to a modified Curie-Weiss law over the temperature range 70 to 300 K are 2.7(2) mu(B) (Np3S5) and 2.9(2) mu(B) (Np3Se5). C1 [Jin, Geng Bang; Skanthakumar, S.; Soderholm, L.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Jin, Geng Bang; Ibers, James A.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. [Haire, Richard G.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Soderholm, L (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM LS@anl.gov; ibers@chem.northwestern.edu FU U.S. Department of Energy, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division and Division of Materials Sciences and Engineering [ER-15522]; U.S. Department of Energy, OBES, Chemical Sciences and Engineering Division [DEAC02-06CH11357] FX The research was supported at Northwestern University by the U.S. Department of Energy, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division and Division of Materials Sciences and Engineering Grant ER-15522 and at Argonne National Laboratory by the U.S. Department of Energy, OBES, Chemical Sciences and Engineering Division, under contract DEAC02-06CH11357. NR 39 TC 7 Z9 7 U1 0 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 J9 INORG CHEM JI Inorg. Chem. PD FEB 7 PY 2011 VL 50 IS 3 BP 1084 EP 1088 DI 10.1021/ic101915x PG 5 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 712TI UT WOS:000286688700049 PM 21188977 ER PT J AU Ratner, D Chao, A Huang, ZR AF Ratner, Daniel Chao, Alex Huang, Zhirong TI Two-chicane compressed harmonic generation of soft x rays SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID FREE-ELECTRON LASERS; EMISSION; FACILITY AB Seeding an electron bunch prior to compression simultaneously shifts the laser modulation to shorter wavelengths while decreasing the required modulation amplitude. The final x-ray wavelength is then tunable by controlling the compression factor with the rf phase. In this paper we describe a two-chicane scheme that allows for large modulation amplitudes, extending the method to photocathode beams with significant uncorrelated energy spreads. The downside of such compressed seeding is the need to maintain bunching across an extended accelerator region. We present analytical estimates and computer simulations to study tolerances for a sample lattice. We also note that transportation of the fine compressed modulation structure is helped by error self-correction in the second chicane, an effect that may be of more general interest. C1 [Ratner, Daniel] Stanford Univ, Stanford, CA 94305 USA. [Chao, Alex; Huang, Zhirong] SLAC, Menlo Pk, CA 94309 USA. RP Ratner, D (reprint author), Stanford Univ, Stanford, CA 94305 USA. FU Department of Energy [DE-AC02-76SF00515] FX We would like to thank Y. Ding, P. Emma, H. Geng, H. Merdji, G. Stupakov, and D. Xiang for helpful discussions. This work is supported by Department of Energy Contract No. DE-AC02-76SF00515. NR 24 TC 7 Z9 7 U1 1 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB 7 PY 2011 VL 14 IS 2 AR 020701 DI 10.1103/PhysRevSTAB.14.020701 PG 9 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 717II UT WOS:000287036500001 ER PT J AU Erslev, PT Shafarman, WN Cohen, JD AF Erslev, Peter T. Shafarman, William N. Cohen, J. David TI Metastable properties of Cu(In1-xGax)Se-2 with and without sodium SO APPLIED PHYSICS LETTERS LA English DT Article ID HETEROJUNCTIONS; CU(IN,GA)SE-2; KINETICS AB We compare the electronic properties of Cu(In1-xGax)Se-2 (CIGS, x=0.3) companion films with standard and nearly absent sodium levels. The films were examined over a wide range of metastable states produced by light-soaking. Admittance spectroscopy revealed that the activation energy of the dominant deep defect (hole trap) decreased monotonically from 300 to 60 meV with light-soaking time for samples with normal sodium, but remained nearly fixed (similar to 350 meV) for samples without sodium. Drive-level capacitance profiling indicated that the deep defect densities increased under light-soaking by roughly a factor of 20 for both samples and annealed at identical rates; however, the relative increases between the defect and hole carrier densities were dramatically different. (C) 2011 American Institute of Physics. [doi:10.1063/1.3553783] C1 [Erslev, Peter T.; Cohen, J. David] Univ Oregon, Dept Phys, Eugene, OR 97403 USA. [Shafarman, William N.] Univ Delaware, Inst Energy Convers, Newark, DE 19716 USA. RP Erslev, PT (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM pete.erslev@nrel.gov FU National Renewable Energy Laboratory [ZXL-5-44205-11, ADJ-1-30630-12]; National Science Foundation [DGE-0549503] FX This research was supported by the National Renewable Energy Laboratory under Subcontract Nos. ZXL-5-44205-11 (Oregon) and ADJ-1-30630-12 (Delaware). P. T. E. acknowledges the IGERT support from the National Science Foundation (Grant No. DGE-0549503). NR 15 TC 13 Z9 14 U1 0 U2 23 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 7 PY 2011 VL 98 IS 6 AR 062105 DI 10.1063/1.3553783 PG 3 WC Physics, Applied SC Physics GA 719WL UT WOS:000287242100032 ER PT J AU Reinke, CM Su, MF Olsson, RH El-Kady, I AF Reinke, Charles M. Su, M. F. Olsson, R. H., III El-Kady, I. TI Realization of optimal bandgaps in solid-solid, solid-air, and hybrid solid-air-solid phononic crystal slabs SO APPLIED PHYSICS LETTERS LA English DT Article AB We investigate the optimal conditions for bandgap formation in square-lattice phononic crystal (PnC) slabs composed of a solid matrix with solid or air inclusions. To ensure sufficient impedance mismatch (key for bandgap formation) and fabrication amenability, silicon and silica were chosen as candidate matrix materials with either air or tungsten inclusions. Solid-solid PnCs were found to exhibit larger bandgaps while relaxing the topological constraints as compared to solid-air PnCs for all but the largest filling fractions. We also demonstrate a hybridized lattice incorporating both air and solid inclusions in the matrix that further relaxes the constraints for realizing wide bandgaps. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3543848] C1 [Reinke, Charles M.; El-Kady, I.] Sandia Natl Labs, Dept Photon Microsyst Technol, Albuquerque, NM 87185 USA. [Su, M. F.; El-Kady, I.] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA. [Olsson, R. H., III] Sandia Natl Labs, Dept Adv MEMS, Albuquerque, NM 87185 USA. RP El-Kady, I (reprint author), Sandia Natl Labs, Dept Photon Microsyst Technol, POB 5800, Albuquerque, NM 87185 USA. EM ielkady@sandia.gov RI El-Kady, Ihab/D-2886-2013; OI El-Kady, Ihab/0000-0001-7417-9814; Reinke, Charles/0000-0002-5869-9817 FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 17 TC 19 Z9 20 U1 1 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 7 PY 2011 VL 98 IS 6 AR 061912 DI 10.1063/1.3543848 PG 3 WC Physics, Applied SC Physics GA 719WL UT WOS:000287242100027 ER PT J AU Kekatpure, RD Davids, PS AF Kekatpure, Rohan D. Davids, Paul S. TI Channeling light into quantum-scale gaps SO PHYSICAL REVIEW B LA English DT Article ID PLASMONIC WAVE-GUIDE; EXTRAORDINARY OPTICAL-TRANSMISSION; SURFACE POLARITON; REFRACTION; GENERATION; METAL AB We develop a discrete plasmonic mode-matching technique to investigate the ultimate limits to plasmonic light concentration down to the length scales required for observation of quantum-mechanical phenomena, including plasmon-assisted electron tunneling. Our mode-matching calculations, verified by direct numerical solution of Maxwell's equations, indicate achievable coupling efficiencies of >20% into symmetric bound gap plasmon modes in sub-10-nm gaps. For a given operating wavelength and a choice of material parameters, we demonstrate the existence of a specific width that maximizes enhancement of the electromagnetic field coupled into the gap. More generally, our calculations establish an intuitive and a computationally efficient framework for determining coupling efficiencies in and out of quantum-scale waveguides. C1 [Kekatpure, Rohan D.; Davids, Paul S.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Kekatpure, RD (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM rdkekat@sandia.gov; pdavids@sandia.gov RI Kekatpure, Rohan/E-4603-2011 FU Sandia National Laboratories; Air Force Research Laboratory [F4FBFM9194G001]; United States Department of Energy National Nuclear Security Administration [DE-AC04-94AL85000] FX We acknowledge the generous support and encouragement of F. B. McCormick and C. A. Boye. R. D. K thanks S. E. Kocabas, A. Chandran, and M. L. Brongersma for helpful discussions. This work was supported by the Laboratory Directed Research and Development program at Sandia National Laboratories and Air Force Research Laboratory Contract No. F4FBFM9194G001. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 31 TC 3 Z9 3 U1 1 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD FEB 7 PY 2011 VL 83 IS 7 AR 075408 DI 10.1103/PhysRevB.83.075408 PG 18 WC Physics, Condensed Matter SC Physics GA 717GP UT WOS:000287031900006 ER PT J AU Lee, KS Roeck, WW Gullberg, GT Nalcioglu, O AF Lee, Keum Sil Roeck, Werner W. Gullberg, Grant T. Nalcioglu, Orhan TI MR-based keyhole SPECT for small animal imaging SO PHYSICS IN MEDICINE AND BIOLOGY LA English DT Article ID RECONSTRUCTION; SIMULATION; DESIGN; SINGLE; SYSTEM AB The rationale for multi-modality imaging is to integrate the strengths of different imaging technologies while reducing the shortcomings of an individual modality. The work presented here proposes a limited-field-of-view (LFOV) SPECT reconstruction technique that can be implemented on a multi-modality MR/SPECT system that can be used to obtain simultaneous MRI and SPECT images for small animal imaging. The reason for using a combined MR/SPECT system in this work is to eliminate any possible misregistration between the two sets of images when MR images are used as a priori information for SPECT. In nuclear imaging the target area is usually smaller than the entire object; thus, focusing the detector on the LFOV results in various advantages including the use of a smaller nuclear detector (less cost), smaller reconstruction region (faster reconstruction) and higher spatial resolution when used in conjunction with pinhole collimators with magnification. The MR/SPECT system can be used to choose a region of interest (ROI) for SPECT. A priori information obtained by the full field-of-view (FOV) MRI combined with the preliminary SPECT image can be used to reduce the dimensions of the SPECT reconstruction by limiting the computation to the smaller FOV while reducing artifacts resulting from the truncated data. Since the technique is based on SPECT imaging within the LFOV it will be called the keyhole SPECT (K-SPECT) method. At first MRI images of the entire object using a larger FOV are obtained to determine the location of the ROI covering the target organ. Once the ROI is determined, the animal is moved inside the radiofrequency (rf) coil to bring the target area inside the LFOV and then simultaneous MRI and SPECT are performed. The spatial resolution of the SPECT image is improved by employing a pinhole collimator with magnification >1 by having carefully calculated acceptance angles for each pinhole to avoid multiplexing. In our design all the pinholes are focused to the center of the LFOV. K-SPECT reconstruction is accomplished by generating an adaptive weighting matrix using a priori information obtained by simultaneously acquired MR images and the radioactivity distribution obtained from the ROI region of the SPECT image that is reconstructed without any a priori input. Preliminary results using simulations with numerical phantoms show that the image resolution of the SPECT image within the LFOV is improved while minimizing artifacts arising from parts of the object outside the LFOV due to the chosen magnification and the new reconstruction technique. The root-mean-square-error (RMSE) in the out-of-field artifacts was reduced by 60% for spherical phantoms using the K-SPECT reconstruction technique and by 48.5-52.6% for the heart in the case with the MOBY phantom. The K-SPECT reconstruction technique significantly improved the spatial resolution and quantification while reducing artifacts from the contributions outside the LFOV as well as reducing the dimension of the reconstruction matrix. C1 [Lee, Keum Sil; Roeck, Werner W.; Nalcioglu, Orhan] Univ Calif Irvine, Tu & Yuen Ctr Funct Oncoimaging, Irvine, CA 92717 USA. [Lee, Keum Sil; Nalcioglu, Orhan] Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA USA. [Roeck, Werner W.; Nalcioglu, Orhan] Univ Calif Irvine, Dept Radiol Sci, Irvine, CA 92717 USA. [Gullberg, Grant T.] Ernest Orlando Lawrence Berkeley Natl Lab, Dept Radiotracer Dev & Imaging Technol, Berkeley, CA USA. [Nalcioglu, Orhan] Pusan Natl Univ, Dept Cognomechtron Engn, Pusan 609735, South Korea. RP Lee, KS (reprint author), Univ Calif Irvine, Tu & Yuen Ctr Funct Oncoimaging, Irvine, CA 92717 USA. EM keumsill@uci.edu FU CIRM [TG2-01152, RT1-01120-1]; NIH [R01EB007219]; Office of Science and Office of Biological and Environmental Research, Medical Sciences Division of the US Department of Energy [DE-AC02-05CH11231]; Ministry of Education, Science and Technology, South Korea [R31-20004-(ON)] FX The authors express special thanks to Dr Paul Segars at Duke University for providing the software for the MOBY phantom. This project was supported in part by CIRM grants TG2-01152 (KSL), RT1-01120-1 (ON), NIH grant R01EB007219 (GTG) and by the Director, Office of Science and Office of Biological and Environmental Research, Medical Sciences Division of the US Department of Energy under contract DE-AC02-05CH11231 (GTG). It was also supported in part by the World Class University program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology, South Korea (grant no R31-20004-(ON)). NR 17 TC 1 Z9 2 U1 0 U2 5 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0031-9155 J9 PHYS MED BIOL JI Phys. Med. Biol. PD FEB 7 PY 2011 VL 56 IS 3 BP 685 EP 702 DI 10.1088/0031-9155/56/3/010 PG 18 WC Engineering, Biomedical; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Radiology, Nuclear Medicine & Medical Imaging GA 706MS UT WOS:000286223100010 PM 21220840 ER PT J AU Burghoff, D Kao, TY Ban, DY Lee, AWM Hu, Q Reno, J AF Burghoff, David Kao, Tsung-Yu Ban, Dayan Lee, Alan Wei Min Hu, Qing Reno, John TI A terahertz pulse emitter monolithically integrated with a quantum cascade laser SO APPLIED PHYSICS LETTERS LA English DT Article ID METAL WAVE-GUIDES; MU-M AB A terahertz pulse emitter monolithically integrated with a quantum cascade laser (QCL) is demonstrated. The emitter facet is excited by near-infrared pulses from a mode-locked Ti:sapphire laser, and the resulting current transients generate terahertz pulses that are coupled into an electrically isolated QCL in proximity. These pulses are used to measure the gain of the laser transition at similar to 2.2 THz, which clamps above threshold at similar to 18 cm(-1) and has a full width at half-maximum linewidth of similar to 0.67 THz. The measurement also shows the existence of absorption features at different biases that correspond to misalignment of the band structure and to absorption within the two injector states. The simplicity of this scheme allows it to be implemented alongside standard QCL ridge processing and to be used as a versatile tool for characterizing QCL gain media. (C) 2011 American Institute of Physics. [doi:10.1063/1.3553021] C1 [Burghoff, David; Kao, Tsung-Yu; Lee, Alan Wei Min; Hu, Qing] MIT, Elect Res Lab, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA. [Ban, Dayan] Univ Waterloo, Dept Elect & Comp Engn, Waterloo, ON N2L 3G1, Canada. [Reno, John] Sandia Natl Labs, Dept 1123, Albuquerque, NM 87185 USA. RP Burghoff, D (reprint author), MIT, Elect Res Lab, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA. EM burghoff@mit.edu FU NASA; NSF; U.S. Department of Energy [DE-AC04-94AL85000] FX This work was supported by NASA and NSF. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the U.S. Department of Energy under Contract No. DE-AC04-94AL85000. The authors would also like to thank Qi Qin and Sushil Kumar for their assistance in fabricating other devices used in this project. NR 15 TC 28 Z9 28 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD FEB 7 PY 2011 VL 98 IS 6 AR 061112 DI 10.1063/1.3553021 PG 3 WC Physics, Applied SC Physics GA 719WL UT WOS:000287242100012 ER PT J AU Cho, K Kim, H Tanatar, MA Song, YJ Kwon, YS Coniglio, WA Agosta, CC Gurevich, A Prozorov, R AF Cho, K. Kim, H. Tanatar, M. A. Song, Y. J. Kwon, Y. S. Coniglio, W. A. Agosta, C. C. Gurevich, A. Prozorov, R. TI Anisotropic upper critical field and possible Fulde-Ferrel-Larkin-Ovchinnikov state in the stoichiometric pnictide superconductor LiFeAs SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC-FIELDS; UNCONVENTIONAL SUPERCONDUCTORS; PARALLEL; SR2RUO4; HEAT; UPT3 AB Measurements of the temperature and angular dependencies of the upper critical field H-c2 of a stoichiometric single crystal LiFeAs in pulsed magnetic fields up to 50 T were performed using a tunnel diode resonator. Complete H-c2(parallel to c)(T) and H-c2(perpendicular to c)(T) functions with H-c2(parallel to c)(0) = 17 +/- 1 T, H-c2(perpendicular to c) (0) = 26 +/- 1 T, and the anisotropy parameter gamma(H)(T) equivalent to H-c2(perpendicular to c) / H-c2(parallel to c) decreasing from 2.5 at T-c to 1.5 at T << T-c were obtained. The results for both orientations are in excellent agreement with a theory of H-c2 for two-band s(+/-) pairing in the clean limit. We show that H-c2(parallel to c)(T) is mostly limited by the orbital pair breaking, whereas the shape of H-c2(perpendicular to c)(T) indicates strong paramagnetic Pauli limiting and the inhomogeneous Fulde-Ferrel-Larkin-Ovchinnikov state below T-F similar to 5 K. C1 [Cho, K.; Kim, H.; Tanatar, M. A.; Prozorov, R.] Ames Lab, Ames, IA 50011 USA. [Kim, H.; Prozorov, R.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Song, Y. J.; Kwon, Y. S.] Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea. [Coniglio, W. A.; Agosta, C. C.] Clark Univ, Dept Phys, Worcester, MA 01610 USA. [Gurevich, A.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA. RP Prozorov, R (reprint author), Ames Lab, Ames, IA 50011 USA. EM prozorov@ameslab.gov RI Gurevich, Alex/A-4327-2008; Prozorov, Ruslan/A-2487-2008 OI Gurevich, Alex/0000-0003-0759-8941; Prozorov, Ruslan/0000-0002-8088-6096 FU US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-07CH11358]; US Department of Energy [ER46214]; Basic Science Research Program [2010-0007487]; Mid-career Researcher Program [R01-2008-000-20586-0]; Alfred P. Sloan Foundation; NSF [NSF-DMR-0084173]; State of Florida FX We thank A. Carrington, V. G. Kogan, L. Taillefer and T. Terashima for discussions. The work at Ames Laboratory was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Contract No. DE-AC02-07CH11358. The work at Clark was supported by the US Department of Energy under Contract No. ER46214. The work at Sungkyunkwan University was supported by the Basic Science Research Program (2010-0007487), the Mid-career Researcher Program (No. R01-2008-000-20586-0). R.P. acknowledges support from the Alfred P. Sloan Foundation. A.G. was supported by NSF through NSF-DMR-0084173 and by the State of Florida. NR 51 TC 73 Z9 73 U1 1 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD FEB 7 PY 2011 VL 83 IS 6 AR 060502 DI 10.1103/PhysRevB.83.060502 PG 4 WC Physics, Condensed Matter SC Physics GA 717GG UT WOS:000287031000002 ER PT J AU Jenei, Z Liermann, HP Cynn, H Klepeis, JHP Baer, BJ Evans, WJ AF Jenei, Zs Liermann, H. P. Cynn, H. Klepeis, J. -H. P. Baer, B. J. Evans, W. J. TI Structural phase transition in vanadium at high pressure and high temperature: Influence of nonhydrostatic conditions SO PHYSICAL REVIEW B LA English DT Article ID LATTICE-DYNAMICS AB Vanadium has been reported to undergo phase transition upon compression from body-centered cubic (bcc) to rhombohedral structure around 62 GPa. In this paper we confirm the bcc to rhombohedral phase transition at 61.5 GPa under quasihydrostatic compression in the Ne pressure medium. Under the nonhydrostatic condition we find the phase transition occurring at 30 GPa at ambient temperature and 37 GPa at 425 K. We find the transition under the hydrostatic condition is hindered and it can occur at much lower pressure under the nonhydrostatic condition. C1 [Jenei, Zs; Cynn, H.; Klepeis, J. -H. P.; Baer, B. J.; Evans, W. J.] Lawrence Livermore Natl Lab, Condensed Matter & Mat Div, Phys & Life Sci Directorate, Livermore, CA 94551 USA. [Jenei, Zs] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden. [Liermann, H. P.] Argonne Natl Lab, HPCAT, Geophys Lab, Carnegie Inst Washington,Advance Photon Source, Argonne, IL 60439 USA. [Liermann, H. P.] DESY, HASYLAB, D-22607 Hamburg, Germany. RP Jenei, Z (reprint author), Lawrence Livermore Natl Lab, Condensed Matter & Mat Div, Phys & Life Sci Directorate, Livermore, CA 94551 USA. RI Jenei, Zsolt/B-3475-2011 FU DOE/NNSA; LLNL Science campaign management; US DOE by LLNL [DE-AC52-07NA27344]; DOE-NNSA; DOE-BES [DE-AC02-06CH11357]; NSF FX We gratefully acknowledge support from DOE/NNSA Science Campaign-2 and LLNL Science campaign management. This work was performed under the auspices of the US DOE by LLNL under Contract No. DE-AC52-07NA27344. Portions of this work were performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT is supported by CIW, CDAC, UNLV, and LLNL through funding from DOE-NNSA, DOE-BES, and NSF. APS is supported by DOE-BES, under Contract No. DE-AC02-06CH11357. NR 23 TC 14 Z9 14 U1 0 U2 14 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD FEB 7 PY 2011 VL 83 IS 5 AR 054101 DI 10.1103/PhysRevB.83.054101 PG 4 WC Physics, Condensed Matter SC Physics GA 717FZ UT WOS:000287030300002 ER PT J AU Fox, PJ Kribs, GD Tait, TMP AF Fox, Patrick J. Kribs, Graham D. Tait, Tim M. P. TI Interpreting dark matter direct detection independently of the local velocity and density distribution SO PHYSICAL REVIEW D LA English DT Article ID PHASE-SPACE STRUCTURE; MILKY-WAY; SOLAR NEIGHBORHOOD; STELLAR STREAMS; DATA RELEASE; HALO; MODULATION; SIGNATURE; SEARCH; THICK AB We demonstrate precisely what particle physics information can be extracted from a single direct detection observation of dark matter while making absolutely no assumptions about the local velocity distribution and local density of dark matter. Our central conclusions follow from a very simple observation: the velocity distribution of dark matter is positive definite, f(v) >= 0. We demonstrate the utility of this result in several ways. First, we show a falling deconvoluted recoil spectrum (deconvoluted of the nuclear form factor), such as from ordinary elastic scattering, can be "mocked up" by any mass of dark matter above a kinematic minimum. As an example, we show that dark matter much heavier than previously considered can explain the CoGeNT excess. Specifically, m(chi) < m(Ge) can be in just as good agreement as light dark matter, while m(chi) > m(Ge) depends on understanding the sensitivity of xenon to dark matter at very low recoil energies, ER less than or similar to 6 keVnr. Second, we show that any rise in the deconvoluted recoil spectrum represents distinct particle physics information that cannot be faked by an arbitrary f(v). As examples of resulting nontrivial particle physics, we show that inelastic dark matter and dark matter with a form factor can both yield such a rise. C1 [Fox, Patrick J.; Kribs, Graham D.] Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA. [Fox, Patrick J.] Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA. [Kribs, Graham D.] Univ Oregon, Dept Phys, Eugene, OR 97403 USA. [Tait, Tim M. P.] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA. RP Fox, PJ (reprint author), Fermilab Natl Accelerator Lab, Dept Theoret Phys, POB 500, Batavia, IL 60510 USA. FU Fermilab; NSF [PHY-0918108, PHY-0970171]; Fermi Research Alliance, LLC, with the United States Department of Energy [DE-AC02-07CH11359] FX We thank R. Lang, R. Fok, and L. Strigari for useful discussions. We also thank the Kavli Institute of Theoretical Physics and the Aspen Center of Physics for each providing a simulating atmosphere where part of this work was carried out. G. D. K. was supported by a Ben Lee Fellowship from Fermilab and in part by the NSF under Contract No. PHY-0918108. T. M. P. T. was supported in part by the NSF under Contract No. PHY-0970171. Fermilab is operated by the Fermi Research Alliance, LLC, under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. NR 90 TC 57 Z9 57 U1 1 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 7 PY 2011 VL 83 IS 3 AR 034007 DI 10.1103/PhysRevD.83.034007 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 717HQ UT WOS:000287034700007 ER PT J AU Sanchez, PD Lees, JP Poireau, V Prencipe, E Tisserand, V Tico, JG Grauges, E Martinelli, M Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Battaglia, M Brown, DN Hooberman, B Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Tanabe, T Hawkes, CM Soni, N Watson, AT Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA Khan, A Randle-Conde, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Bondioli, M Curry, S Kirkby, D Lankford, AJ Mandelkern, M Martin, EC Stoker, DP Atmacan, H Gary, JW Liu, F Long, O Vitug, GM Yasin, Z Sharma, V Campagnari, C Hong, TM Kovalskyi, D Richman, JD Eisner, AM Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Winstrom, LO Cheng, CH Doll, DA Echenard, B Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Dubrovin, MS Mancinelli, G Meadows, BT Sokoloff, MD Bloom, PC Ford, WT Gaz, A Hirschauer, JF Nagel, M Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Hauke, A Jasper, H Karbach, TM Merkel, J Petzold, A Spaan, B Wacker, K Kobel, MJ Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Fioravanti, E Franchini, P Luppi, E Munerato, M Negrini, M Petrella, A Piemontese, L Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Nicolaci, M Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Tosi, S Bhuyan, B Morii, M Adametz, A Marks, J Schenk, S Uwer, U Bernlochner, FU Lacker, HM Lueck, T Volk, A Dauncey, PD Tibbetts, M Behera, PK Mallik, U Chen, C Cochran, J Crawley, HB Dong, L Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gao, YY Gritsan, AV Guo, ZJ Arnaud, N Davier, M Derkach, D da Costa, JF Grosdidier, G Le Diberder, F Lutz, AM Malaescu, B Perez, A Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wang, L Wormser, G Lange, DJ Wright, DM Bingham, I Burke, JP Chavez, CA Coleman, JP Fry, JR Gabathuler, E Gamet, R Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Sigamani, M Cowan, G Paramesvaran, S Wren, AC Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Hafner, A Alwyn, KE Bailey, D Barlow, RJ Jackson, G Lafferty, GD West, TJ Anderson, J Cenci, R Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Salvati, E Cowan, R Dujmic, D Fisher, PH Sciolla, G Yamamoto, RK Zhao, M Patel, PM Robertson, SH Schram, M Biassoni, P Lazzaro, A Lombardo, V Palombo, F Stracka, S Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, DJ Zhao, HW Nguyen, X Simard, M Taras, P De Nardo, G Monorchio, D Onorato, G Sciacca, C Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Wang, WF Corwin, LA Honscheid, K Kass, R Morris, JP Rahimi, AM Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Rahmat, R Sinev, NB Strom, D Strube, J Torrence, E Castelli, G Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simonetto, F Stroili, R Ben-Haim, E Bonneaud, GR Briand, H Chauveau, J Hamon, O Leruste, P Marchiori, G Ocariz, J Prendki, J Sitt, S Biasini, M Manoni, E Angelini, C Batignani, G Bettarini, S Calderini, G Carpinelli, M Cervelli, A Forti, F Giorgi, MA Lusiani, A Neri, N Paoloni, E Rizzo, G Walsh, JJ Pegna, DL Lu, C Olsen, J Smith, AJS Telnov, AV Anulli, F Baracchini, E Cavoto, G Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Gioi, LL Mazzoni, MA Piredda, G Renga, F Ebert, M Hartmann, T Leddig, T Schroder, H Waldi, R Adye, T Franek, B Olaiya, EO Wilson, FF Emery, S de Monchenault, GH Vasseur, G Yeche, C Zito, M Allen, MT Aston, D Bard, DJ Bartoldus, R Benitez, JF Cartaro, C Convery, MR Dingfelder, JC Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Field, RC Sevilla, MF Fulsom, BG Gabareen, AM Graham, MT Grenier, P Hast, C Innes, WR Kelsey, MH Kim, H Kim, P Kocian, ML Leith, DWGS Li, S Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Marsiske, H Muller, DR Neal, H Nelson, S O'Grady, CP Ofte, I Perl, M Ratcliff, BN Roodman, A Salnikov, AA Santoro, V Schindler, RH Schwiening, J Snyder, A Su, D Sullivan, MK Suzuki, K Thompson, JM Va'vra, J Wagner, AP Weaver, M West, CA Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Yarritu, AK Young, CC Ziegler, V Chen, XR Park, W Purohit, MV White, RM Wilson, JR Sekula, SJ Bellis, M Burchat, PR Edwards, AJ Miyashita, TS Ahmed, S Alam, MS Ernst, JA Pan, B Saeed, MA Zain, SB Guttman, N Soffer, A Lund, P Spanier, SM Eckmann, R Ritchie, JL Ruland, AM Schilling, CJ Schwitters, RF Wray, BC Izen, JM Lou, XC Bianchi, F Gamba, D Pelliccioni, M Bomben, M Della Ricca, G Lanceri, L Vitale, L Azzolini, V Lopez-March, N Martinez-Vidal, F Milanes, DA Oyanguren, A Albert, J Banerjee, S Choi, HHF Hamano, K 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R. Park, W. Purohit, M. V. White, R. M. Wilson, J. R. Sekula, S. J. Bellis, M. Burchat, P. R. Edwards, A. J. Miyashita, T. S. Ahmed, S. Alam, M. S. Ernst, J. A. Pan, B. Saeed, M. A. Zain, S. B. Guttman, N. Soffer, A. Lund, P. Spanier, S. M. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Wray, B. C. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Pelliccioni, M. Bomben, M. Della Ricca, G. Lanceri, L. Vitale, L. Azzolini, V. Lopez-March, N. Martinez-Vidal, F. Milanes, D. A. Oyanguren, A. Albert, J. Banerjee, Sw. Choi, H. H. F. Hamano, K. King, G. J. Kowalewski, R. Lewczuk, M. J. Nugent, I. M. Roney, J. M. Sobie, R. J. Gershon, T. J. Harrison, P. F. Ilic, J. Latham, T. E. Mohanty, G. B. Puccio, E. M. T. Band, H. R. Chen, X. Dasu, S. Flood, K. T. Pan, Y. Prepost, R. Vuosalo, C. O. Wu, S. L. CA BaBar Collaboration TI Study of B -> pi lv and B -> rho lv decays and determination of vertical bar V-ub vertical bar SO PHYSICAL REVIEW D LA English DT Article ID FORM-FACTORS; RADIATIVE-CORRECTIONS; SEMILEPTONIC-B; MESON DECAYS; CP-VIOLATION; HEAVY MESONS; MONTE-CARLO; QUARK-MODEL; SYMMETRY; PHYSICS AB We present an analysis of exclusive charmless semileptonic B-meson decays based on 377 x 10(6) B (B) over bar pairs recorded with the BABAR detector at the Y(4S) resonance. We select four event samples corresponding to the decay modes B-0 -> pi(-)l(+)v, B+ -> pi(0)l(+)v, B-0 -> rho(-)l(+)v, and B+ -> rho(0)l(+)v and find the measured branching fractions to be consistent with isospin symmetry. Assuming isospin symmetry, we combine the two B -> pi lv samples, and similarly the two B -> rho lv samples, and measure the branching fractions B(B-0 -> pi(-)l(+)v) = (1.41 +/- 0.05 +/- 0.07) x 10(-4) and B(B-0 -> rho(-)l(+)v) = (1.75 +/- 0.15 +/- 0.27) x 10(-4), where the errors are statistical and systematic. We compare the measured distribution in q(2), the momentum transfer squared, with predictions for the form factors from QCD calculations and determine the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-ub vertical bar. Based on the measured partial branching fraction for B -> pi lv in the range q(2) < 12 GeV2 and the most recent QCD light-cone sum-rule calculations, we obtain vertical bar V-ub vertical bar = (3.78 +/- 0.13(-0.40)(+0.55)10(-3), where the errors refer to the experimental and theoretical uncertainties. From a simultaneous fit to the data over the full q(2) range and the FNAL/MILC lattice QCD results, we obtain vertical bar V-ub vertical bar = (2.95 +/- 0.31) x 10(-3) from B -> pi lv, where the error is the combined experimental and theoretical uncertainty. C1 [Sanchez, P. del Amo; Lees, J. P.; Poireau, V.; Prencipe, E.] Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. [Garra Tico, J.; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Martinelli, M.; Palano, A.; Pappagallo, M.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Martinelli, M.; Palano, A.; Pappagallo, M.] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy. [Tisserand, V.; Eigen, G.; Stugu, B.; Sun, L.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway. [Battaglia, M.; Brown, D. N.; Hooberman, B.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Osipenkov, I. L.; Tanabe, T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Hawkes, C. 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Hamel; Vasseur, G.; Yeche, Ch.; Zito, M.] CEA, Ctr Saclay, SPP, F-91191 Gif Sur Yvette, France. [Allen, M. T.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dingfelder, J. C.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Sevilla, M. Franco; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Marsiske, H.; Muller, D. R.; Neal, H.; Nelson, S.; O'Grady, C. P.; Ofte, I.; Perl, M.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Santoro, V.; Schindler, R. H.; Schwiening, J.; Snyder, A.; Su, D.; Sullivan, M. K.; Suzuki, K.; Thompson, J. M.; Va'vra, J.; Wagner, A. P.; Weaver, M.; West, C. A.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Yarritu, A. K.; Young, C. C.; Ziegler, V.] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA. [Chen, X. R.; Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA. [Sekula, S. J.] So Methodist Univ, Dallas, TX 75275 USA. [Bellis, M.; Burchat, P. R.; Edwards, A. J.; Miyashita, T. S.] Stanford Univ, Stanford, CA 94305 USA. [Ahmed, S.; Alam, M. S.; Ernst, J. A.; Pan, B.; Saeed, M. A.; Zain, S. B.] SUNY Albany, Albany, NY 12222 USA. [Guttman, N.; Soffer, A.] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel. [Lund, P.; Spanier, S. M.] Univ Tennessee, Knoxville, TN 37996 USA. [Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.; Wray, B. C.] Univ Texas Austin, Austin, TX 78712 USA. [Izen, J. M.; Lou, X. C.] Univ Texas Dallas, Richardson, TX 75083 USA. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Bomben, M.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy. [Bomben, M.; Della Ricca, G.; Lanceri, L.; Vitale, L.] Univ Trieste, Dipartimento Fis, 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.; Choi, H. H. F.; Hamano, K.; King, G. J.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Ilic, J.; Latham, T. E.; Mohanty, G. B.; Puccio, E. M. T.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Chen, X.; Dasu, S.; Flood, K. T.; Pan, Y.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. [Dingfelder, J. C.] Univ Bonn, Inst Phys, D-53115 Bonn, Germany. RP Sanchez, PD (reprint author), Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. RI Calabrese, Roberto/G-4405-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Stracka, Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Della Ricca, Giuseppe/B-6826-2013; Negrini, Matteo/C-8906-2014; Patrignani, Claudia/C-5223-2009 OI Calabrese, Roberto/0000-0002-1354-5400; 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; Morandin, Mauro/0000-0003-4708-4240; Lusiani, Alberto/0000-0002-6876-3288; Stracka, Simone/0000-0003-0013-4714; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Della Ricca, Giuseppe/0000-0003-2831-6982; Negrini, Matteo/0000-0003-0101-6963; Patrignani, Claudia/0000-0002-5882-1747 FU SLAC; US Department of Energy and National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway; Ministry of Education and Science of the Russian Federation; Ministerio de Ciencia e Innovacion (Spain); Science and Technology Facilities Council (United Kingdom); European Union; A. P. Sloan Foundation (USA); Binational Science Foundation (USA-Israel) FX We would like to thank A. Khodjamirian, A. Kronfeld, P. Mackenzie, T. Mannel, J. Shigemitsu, and R. Van de Water for their help with theoretical form-factor calculations. We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the US Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union), the A. P. Sloan Foundation (USA), and the Binational Science Foundation (USA-Israel). NR 73 TC 59 Z9 59 U1 0 U2 10 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 7 PY 2011 VL 83 IS 3 AR 032007 DI 10.1103/PhysRevD.83.032007 PG 45 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 717HQ UT WOS:000287034700003 ER PT J AU Sanchez, PD Lees, JP Poireau, V Prencipe, E Tisserand, V Tico, JG Grauges, E Martinelli, M Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Battaglia, M Brown, DN Hooberman, B Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Tanabe, T Hawkes, CM Watson, AT Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA Khan, A Randle-Conde, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Bondioli, M Curry, S Kirkby, D Lankford, AJ Mandelkern, M Martin, EC Stoker, DP Atmacan, H Gary, JW Liu, F Long, O Vitug, GM Campagnari, C Hong, TM Kovalskyi, D Richman, JD West, C Eisner, AM Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Winstrom, LO Cheng, CH Doll, DA Echenard, B Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Dubrovin, MS Mancinelli, G Meadows, BT Sokoloff, MD Bloom, PC Ford, WT Gaz, A Nagel, M Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Jasper, H Karbach, TM Merkel, J Petzold, A Spaan, B Wacker, K Kobel, MJ Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Fioravanti, E Franchini, P Luppi, E Munerato, M Negrini, M Petrella, A Piemontese, L Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Nicolaci, M Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Tosi, S Bhuyan, B Prasad, V Lee, CL Morii, M Adametz, A Marks, J Uwer, U Bernlochner, FU Ebert, M Lacker, HM Lueck, T Volk, A Dauncey, PD Tibbetts, M Behera, PK Mallik, U Chen, C Cochran, J Crawley, HB Dong, L Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gritsan, AV Guo, ZJ Arnaud, N Davier, M Derkach, D da Costa, JF Grosdidier, G Le Diberder, F Lutz, AM Malaescu, B Perez, A Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wang, L Wormser, G Lange, DJ Wright, DM Bingham, I Chavez, CA Coleman, JP Fry, JR Gabathuler, E Gamet, R Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Sigamani, M Cowan, G Paramesvaran, S Wren, AC Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Hafner, A Alwyn, KE Bailey, D Barlow, RJ Jackson, G Lafferty, GD Anderson, J Cenci, R Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Salvati, E Cowan, R Dujmic, D Sciolla, G Zhao, M Lindemann, D Patel, PM Robertson, SH Schram, M Biassoni, P Lazzaro, A Lombardo, V Palombo, F Stracka, S Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, DJ Nguyen, X Simard, M Taras, P De Nardo, G Monorchio, D Onorato, G Sciacca, C Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Wang, WF Corwin, LA Honscheid, K Kass, R Morris, JP Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Rahmat, R Sinev, NB Strom, D Strube, J Torrence, E Castelli, G Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simonetto, F Stroili, R Ben-Haim, E Bonneaud, GR Briand, H Calderini, G Chauveau, J Hamon, O Leruste, P Marchiori, G Ocariz, J Prendki, J Sitt, S Biasini, M Manoni, E Rossi, A Angelini, C Batignani, G Bettarini, S Carpinelli, M Casarosa, G Cervelli, A Forti, F Giorgi, MA Lusiani, A Neri, N Paoloni, E Rizzo, G Walsh, JJ Pegna, DLL Lu, C Olsen, J Smith, AJS Telnov, AV Anulli, F Baracchini, E Cavoto, G Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Gioi, LL Mazzoni, MA Piredda, G Renga, F Hartmann, T Leddig, T Schroder, H Waldi, R Adye, T Franek, B Olaiya, EO Wilson, FF Emery, S de Monchenault, GH Vasseur, G Yeche, C Zito, M Allen, MT Aston, D Bard, DJ Bartoldus, R Benitez, JF Cartaro, C Convery, MR Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Field, RC Sevilla, MF Fulsom, BG Gabareen, AM Graham, MT Grenier, P Hast, C Innes, WR Kelsey, MH Kim, H Kim, P Kocian, ML Leith, DWGS Li, S Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Marsiske, H Muller, DR Neal, H Nelson, S O'Grady, CP Ofte, I Perl, M Pulliam, T Ratcliff, BN Roodman, A Salnikov, AA Santoro, V Schindler, RH Schwiening, J Snyder, A Su, D Sullivan, MK Sun, S Suzuki, K Thompson, JM Va'vra, J Wagner, AP Weaver, M West, CA Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Yarritu, AK Young, CC Ziegler, V Chen, XR Park, W Purohit, MV White, RM Wilson, JR Sekula, SJ Bellis, M Burchat, PR Edwards, AJ Miyashita, TS Ahmed, S Alam, MS Ernst, JA Pan, B Saeed, MA Zain, SB Guttman, N Soffer, A Lund, P Spanier, SM Eckmann, R Ritchie, JL Ruland, AM Schilling, CJ Schwitters, RF Wray, BC Izen, JM Lou, XC Bianchi, F Gamba, D Pelliccioni, M Bomben, M Lanceri, L Vitale, L Lopez-March, N Martinez-Vidal, F Milanes, DA Oyanguren, A Albert, J Banerjee, S Choi, HHF Hamano, K King, GJ Kowalewski, R Lewczuk, MJ Nugent, IM Roney, JM Sobie, RJ Gershon, TJ Harrison, PF Latham, TE Puccio, EMT Band, HR Dasu, S Flood, KT Pan, Y Prepost, R Vuosalo, CO Wu, SL AF Sanchez, P. del Amo Lees, J. P. Poireau, V. Prencipe, E. Tisserand, V. Garra Tico, J. Grauges, E. Martinelli, M. Palano, A. Pappagallo, M. Eigen, G. Stugu, B. Sun, L. Battaglia, M. Brown, D. N. Hooberman, B. Kerth, L. T. Kolomensky, Yu. G. Lynch, G. Osipenkov, I. L. Tanabe, T. Hawkes, C. M. Watson, A. T. Koch, H. Schroeder, T. Asgeirsson, D. J. Hearty, C. Mattison, T. S. McKenna, J. A. Khan, A. Randle-Conde, A. Blinov, V. E. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Yushkov, A. N. Bondioli, M. Curry, S. Kirkby, D. Lankford, A. J. Mandelkern, M. Martin, E. C. Stoker, D. P. Atmacan, H. Gary, J. W. Liu, F. Long, O. Vitug, G. M. Campagnari, C. Hong, T. M. Kovalskyi, D. Richman, J. D. West, C. Eisner, A. M. Heusch, C. A. Kroseberg, J. Lockman, W. S. Martinez, A. J. Schalk, T. Schumm, B. A. Seiden, A. Winstrom, L. O. Cheng, C. H. Doll, D. A. Echenard, B. Hitlin, D. G. Ongmongkolkul, P. Porter, F. C. Rakitin, A. Y. Andreassen, R. Dubrovin, M. S. Mancinelli, G. Meadows, B. T. Sokoloff, M. D. Bloom, P. C. Ford, W. T. Gaz, A. Nagel, M. Nauenberg, U. Smith, J. G. Wagner, S. R. Ayad, R. Toki, W. H. Jasper, H. Karbach, T. M. Merkel, J. Petzold, A. Spaan, B. Wacker, K. Kobel, M. J. Schubert, K. R. Schwierz, R. Bernard, D. Verderi, M. Clark, P. J. Playfer, S. Watson, J. E. Andreotti, M. Bettoni, D. Bozzi, C. Calabrese, R. Cecchi, A. Cibinetto, G. Fioravanti, E. Franchini, P. Luppi, E. Munerato, M. Negrini, M. Petrella, A. Piemontese, L. Baldini-Ferroli, R. Calcaterra, A. de Sangro, R. Finocchiaro, G. Nicolaci, M. Pacetti, S. Patteri, P. Peruzzi, I. M. Piccolo, M. Rama, M. Zallo, A. Contri, R. Guido, E. Lo Vetere, M. Monge, M. R. Passaggio, S. Patrignani, C. Robutti, E. Tosi, S. Bhuyan, B. Prasad, V. Lee, C. L. Morii, M. Adametz, A. Marks, J. Uwer, U. Bernlochner, F. U. Ebert, M. Lacker, H. M. Lueck, T. Volk, A. Dauncey, P. D. Tibbetts, M. Behera, P. K. Mallik, U. Chen, C. Cochran, J. Crawley, H. B. Dong, L. Meyer, W. T. Prell, S. Rosenberg, E. I. Rubin, A. E. Gritsan, A. V. Guo, Z. J. Arnaud, N. Davier, M. Derkach, D. da Costa, J. Firmino Grosdidier, G. Le Diberder, F. Lutz, A. M. Malaescu, B. Perez, A. Roudeau, P. Schune, M. H. Serrano, J. Sordini, V. Stocchi, A. Wang, L. Wormser, G. Lange, D. J. Wright, D. M. Bingham, I. Chavez, C. A. Coleman, J. P. Fry, J. R. Gabathuler, E. Gamet, R. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Di Lodovico, F. Sacco, R. Sigamani, M. Cowan, G. Paramesvaran, S. Wren, A. C. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Hafner, A. Alwyn, K. E. Bailey, D. Barlow, R. J. Jackson, G. Lafferty, G. D. Anderson, J. Cenci, R. Jawahery, A. Roberts, D. A. Simi, G. Tuggle, J. M. Dallapiccola, C. Salvati, E. Cowan, R. Dujmic, D. Sciolla, G. Zhao, M. Lindemann, D. Patel, P. M. Robertson, S. H. Schram, M. Biassoni, P. Lazzaro, A. Lombardo, V. Palombo, F. Stracka, S. Cremaldi, L. Godang, R. Kroeger, R. Sonnek, P. Summers, D. J. Nguyen, X. Simard, M. Taras, P. De Nardo, G. Monorchio, D. Onorato, G. Sciacca, C. Raven, G. Snoek, H. L. Jessop, C. P. Knoepfel, K. J. LoSecco, J. M. Wang, W. F. Corwin, L. A. Honscheid, K. Kass, R. Morris, J. P. Blount, N. L. Brau, J. Frey, R. Igonkina, O. Kolb, J. A. Rahmat, R. Sinev, N. B. Strom, D. Strube, J. Torrence, E. Castelli, G. Feltresi, E. Gagliardi, N. Margoni, M. Morandin, M. Posocco, M. Rotondo, M. Simonetto, F. Stroili, R. Ben-Haim, E. Bonneaud, G. R. Briand, H. Calderini, G. Chauveau, J. Hamon, O. Leruste, Ph. Marchiori, G. Ocariz, J. Prendki, J. Sitt, S. Biasini, M. Manoni, E. Rossi, A. Angelini, C. Batignani, G. Bettarini, S. Carpinelli, M. Casarosa, G. Cervelli, A. Forti, F. Giorgi, M. A. Lusiani, A. Neri, N. Paoloni, E. Rizzo, G. Walsh, J. J. Pegna, D. Lopes Lopes Lu, C. Olsen, J. Smith, A. J. S. Telnov, A. V. Anulli, F. Baracchini, E. Cavoto, G. Faccini, R. Ferrarotto, F. Ferroni, F. Gaspero, M. Gioi, L. Li Mazzoni, M. A. Piredda, G. Renga, F. Hartmann, T. Leddig, T. Schroeder, H. Waldi, R. Adye, T. Franek, B. Olaiya, E. O. Wilson, F. F. Emery, S. de Monchenault, G. Hamel Vasseur, G. Yeche, Ch. Zito, M. Allen, M. T. Aston, D. Bard, D. J. Bartoldus, R. Benitez, J. F. Cartaro, C. Convery, M. R. Dorfan, J. Dubois-Felsmann, G. P. Dunwoodie, W. Field, R. C. Sevilla, M. Franco Fulsom, B. G. Gabareen, A. M. Graham, M. T. Grenier, P. Hast, C. Innes, W. R. Kelsey, M. H. Kim, H. Kim, P. Kocian, M. L. Leith, D. W. G. S. Li, S. Lindquist, B. Luitz, S. Luth, V. Lynch, H. L. MacFarlane, D. B. Marsiske, H. Muller, D. R. Neal, H. Nelson, S. O'Grady, C. P. Ofte, I. Perl, M. Pulliam, T. Ratcliff, B. N. Roodman, A. Salnikov, A. A. Santoro, V. Schindler, R. H. Schwiening, J. Snyder, A. Su, D. Sullivan, M. K. Sun, S. Suzuki, K. Thompson, J. M. Va'vra, J. Wagner, A. P. Weaver, M. West, C. A. Wisniewski, W. J. Wittgen, M. Wright, D. H. Wulsin, H. W. Yarritu, A. K. Young, C. C. Ziegler, V. Chen, X. R. Park, W. Purohit, M. V. White, R. M. Wilson, J. R. Sekula, S. J. Bellis, M. Burchat, P. R. Edwards, A. J. Miyashita, T. S. Ahmed, S. Alam, M. S. Ernst, J. A. Pan, B. Saeed, M. A. Zain, S. B. Guttman, N. Soffer, A. Lund, P. Spanier, S. M. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Wray, B. C. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Pelliccioni, M. Bomben, M. Lanceri, L. Vitale, L. Lopez-March, N. Martinez-Vidal, F. Milanes, D. A. Oyanguren, A. Albert, J. Banerjee, Sw. Choi, H. H. F. Hamano, K. King, G. J. Kowalewski, R. Lewczuk, M. J. Nugent, I. M. Roney, J. M. Sobie, R. J. Gershon, T. J. Harrison, P. F. Latham, T. E. Puccio, E. M. T. Band, H. R. Dasu, S. Flood, K. T. Pan, Y. Prepost, R. Vuosalo, C. O. Wu, S. L. CA BaBar Collaboration TI Search for the decay B-0 -> gamma gamma SO PHYSICAL REVIEW D LA English DT Article AB We report the result of a search for the rare decay B-0 -> gamma gamma in 426 fb(-1) of data, corresponding to 226 x 10(6) B-0(B) over bar (0) pairs, collected on the Y(4S) resonance at the PEP-II asymmetric-energy e(+)e(-) collider using the BABAR detector. We use a maximum likelihood fit to extract the signal yield and observe 21(-12)(+13) signal events with a statistical significance of 1.8 sigma. This corresponds to a branching fraction B(B-0 -> gamma gamma) = (1.7 +/- 1.1(stat.) +/- 0.2(syst.)) x 10(-7). Based on this result, we set a 90% confidence level upper limit of B(B-0 -> gamma gamma) < 3.2 x 10(-7). C1 [Sanchez, P. del Amo; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.] Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. [Garra Tico, J.; Grauges, E.] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain. [Martinelli, M.; Palano, A.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy. [Martinelli, M.; Palano, A.] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy. [Pappagallo, M.; Eigen, G.; Sun, L.] Univ Bergen, Inst Phys, N-5007 Bergen, Norway. [Battaglia, M.; Brown, D. N.; Hooberman, B.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Osipenkov, I. L.; Tanabe, T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Hawkes, C. M.; Watson, A. T.] Univ Birmingham, Birmingham B15 2TT, W Midlands, England. [Koch, H.; Schroeder, T.] Ruhr Univ Bochum, Inst Phys Expt, D-44780 Bochum, Germany. [Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada. [Khan, A.; Randle-Conde, A.] Brunel Univ, Uxbridge UB8 3PH, Middx, England. [Blinov, V. E.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Onuchin, A. P.; Serednyakov, S. 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[Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Paoloni, E.; Rizzo, G.; Walsh, J. J.] INFN, Sez Pisa, I-56127 Pisa, Italy. [Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Neri, N.; Paoloni, E.; Rizzo, G.] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy. [Lusiani, A.] Scuola Normale Super Pisa, I-56127 Pisa, Italy. [Pegna, D. Lopes Lopes; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.] Princeton Univ, Princeton, NJ 08544 USA. [Anulli, F.; Baracchini, E.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Gioi, L. Li; Mazzoni, M. A.; Piredda, G.; Renga, F.] INFN, Sez Roma, I-00185 Rome, Italy. [Baracchini, E.; Faccini, R.; Ferroni, F.; Gaspero, M.; Renga, F.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. [Hartmann, T.; Leddig, T.; Schroeder, H.; Waldi, R.] Univ Rostock, D-18051 Rostock, Germany. [Emery, S.; de Monchenault, G. Hamel; Vasseur, G.; Yeche, Ch.; Zito, M.] CEA, SPP, Ctr Saclay, F-91191 Gif Sur Yvette, France. [Allen, M. T.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Sevilla, M. Franco; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Marsiske, H.; Muller, D. R.; Neal, H.; Nelson, S.; O'Grady, C. P.; Ofte, I.; Perl, M.; Pulliam, T.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Santoro, V.; Schindler, R. H.; Schwiening, J.; Snyder, A.; Su, D.; Sullivan, M. K.; Sun, S.; Suzuki, K.; Thompson, J. M.; Va'vra, J.; Wagner, A. P.; Weaver, M.; West, C. A.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Yarritu, A. K.; Young, C. C.; Ziegler, V.] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA. [Chen, X. R.; Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA. [Sekula, S. J.] So Methodist Univ, Dallas, TX 75275 USA. [Bellis, M.; Burchat, P. R.; Edwards, A. J.; Miyashita, T. S.] Stanford Univ, Stanford, CA 94305 USA. [Ahmed, S.; Alam, M. S.; Ernst, J. A.; Pan, B.; Saeed, M. A.; Zain, S. B.] SUNY Albany, Albany, NY 12222 USA. [Guttman, N.; Soffer, A.] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel. [Lund, P.; Spanier, S. M.] Univ Tennessee, Knoxville, TN 37996 USA. [Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.; Wray, B. C.] Univ Texas Austin, Austin, TX 78712 USA. [Izen, J. M.; Lou, X. C.] Univ Texas Dallas, Richardson, TX 75083 USA. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Bomben, M.; Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy. [Bomben, M.; Lanceri, L.; Vitale, L.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy. [Lopez-March, N.; Martinez-Vidal, F.; Milanes, D. A.; Oyanguren, A.] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain. [Albert, J.; Banerjee, Sw.; Choi, H. H. F.; Hamano, K.; King, G. J.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Latham, T. E.; Puccio, E. M. T.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Dasu, S.; Flood, K. T.; Pan, Y.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RP Sanchez, PD (reprint author), Univ Savoie, Lab Annecy le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. RI dong, liaoyuan/A-5093-2015; Rizzo, Giuliana/A-8516-2015; Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; Calabrese, Roberto/G-4405-2015; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Negrini, Matteo/C-8906-2014; Patrignani, Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Stracka, Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; OI Bettarini, Stefano/0000-0001-7742-2998; Cibinetto, Gianluigi/0000-0002-3491-6231; dong, liaoyuan/0000-0002-4773-5050; Pacetti, Simone/0000-0002-6385-3508; Rizzo, Giuliana/0000-0003-1788-2866; Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; Calabrese, Roberto/0000-0002-1354-5400; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Negrini, Matteo/0000-0003-0101-6963; Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; 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; Morandin, Mauro/0000-0003-4708-4240; Lusiani, Alberto/0000-0002-6876-3288; Stracka, Simone/0000-0003-0013-4714; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Paoloni, Eugenio/0000-0001-5969-8712; Faccini, Riccardo/0000-0003-2613-5141; Raven, Gerhard/0000-0002-2897-5323 FU SLAC; US Department of Energy; National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique; Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung; Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway; Ministry of Education and Science of the Russian Federation; Ministerio de Ciencia e Innovacion (Spain); Science and Technology Facilities Council (United Kingdom); European Union; A. P. Sloan Foundation (USA); Binational Science Foundation (USA-Israel) FX We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the US Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie Curie IEF program (European Union), the A. P. Sloan Foundation (USA) and the Binational Science Foundation (USA-Israel). NR 16 TC 0 Z9 0 U1 1 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 EI 1550-2368 J9 PHYS REV D JI Phys. Rev. D PD FEB 7 PY 2011 VL 83 IS 3 AR 032006 DI 10.1103/PhysRevD.83.032006 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 717HQ UT WOS:000287034700002 ER PT J AU Kharzeev, DE Son, DT AF Kharzeev, Dmitri E. Son, Dam T. TI Testing the Chiral Magnetic and Chiral Vortical Effects in Heavy Ion Collisions SO PHYSICAL REVIEW LETTERS LA English DT Article ID VIOLATION; FIELDS; MATTER; QCD AB We devise a test of the chiral magnetic and chiral vortical effects (CME and CVE) in relativistic heavy ion collisions that relies only on the general properties of triangle anomalies. We show that the ratio R-EB = J(E)/J(B) of charge J(E) and baryon J(B) currents for CME is R-EB(CME) -> infinity for three light flavors of quarks (N-f = 3), and R-EB(CME) = 5 for N-f = 2, whereas for CVE it is R-EB(CVE) = 0 for N-f = 3 and R-EB(CME) = 1/2 for N-f = 2. The physical world with light u, d quarks and a heavier s quark is in between the N-f = 2 and N-f = 3 cases; therefore, the ratios R-EB for CME and CVE should differ by over an order of magnitude providing a possibility to separate clearly the CME and CVE contributions. In both cases, there has to be a positive correlation between the charge and baryon number asymmetries that can be tested on the event-by-event basis. C1 [Kharzeev, Dmitri E.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Kharzeev, Dmitri E.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Son, Dam T.] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA. RP Kharzeev, DE (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. FU U.S. Department of Energy [DE-AC02-98CH10886, DE-FG02-00ER41132] FX We thank Valery Rubakov for discussions. The work of D. K. was supported in part by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886. The work of DTS was supported in part by the U.S. Department of Energy under Contract No. DE-FG02-00ER41132. NR 52 TC 91 Z9 91 U1 2 U2 8 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 FEB 7 PY 2011 VL 106 IS 6 AR 062301 DI 10.1103/PhysRevLett.106.062301 PG 4 WC Physics, Multidisciplinary SC Physics GA 717FO UT WOS:000287029100003 PM 21405462 ER PT J AU Rodriguez, EE Poineau, F Llobet, A Kennedy, BJ Avdeev, M Thorogood, GJ Carter, ML Seshadri, R Singh, DJ Cheetham, AK AF Rodriguez, Efrain E. Poineau, Frederic Llobet, Anna Kennedy, Brendan J. Avdeev, Maxim Thorogood, Gordon J. Carter, Melody L. Seshadri, Ram Singh, David J. Cheetham, Anthony K. TI High Temperature Magnetic Ordering in the 4d Perovskite SrTcO3 SO PHYSICAL REVIEW LETTERS LA English DT Article ID NEUTRON POWDER DIFFRACTION; TRANSITION; OXIDES; SRRUO3 AB We present evidence for possibly the highest magnetic ordering temperature in any compound without 3d transition elements. Neutron powder diffraction measurements, at both time-of-flight and constant wavelength sources, were performed on two independently prepared SrTcO3 powders. SrTcO3 adopts a distorted perovskite structure with G-type antiferromagnetic ordering and has a moment of 1.87(4)mu(B) per Tc cation at room temperature with an extraordinarily high Neel point close to 750 degrees C. Electronic structure calculations reveal extensive mixing between the technetium 4d states and oxygen states proximal to the Fermi level. This hybridization leads to a close relationship between magnetic ordering temperature and moment formation in SrTcO3. C1 [Rodriguez, Efrain E.] Natl Inst Sci & Techn Creat, NIST Ctr Neutron Res, Gaithersburg, MD 20889 USA. [Poineau, Frederic] Univ Nevada, Harry Reid Ctr Environm Studies, Las Vegas, NV 89154 USA. [Llobet, Anna] Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA. [Kennedy, Brendan J.] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia. [Avdeev, Maxim] Australian Nucl Sci & Technol Org, Bragg Inst, Menai, NSW 2234, Australia. [Thorogood, Gordon J.; Carter, Melody L.] IME Australian Nucl Sci & Technol Org, Menai, NSW 2234, Australia. [Seshadri, Ram] Univ Calif Santa Barbara, Dept Mat, Mat Res Lab, Santa Barbara, CA 93106 USA. [Singh, David J.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA. [Cheetham, Anthony K.] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England. RP Rodriguez, EE (reprint author), Natl Inst Sci & Techn Creat, NIST Ctr Neutron Res, 100 Bur Dr, Gaithersburg, MD 20889 USA. RI Seshadri, Ram/C-4205-2013; Rodriguez, Efrain/N-1928-2013; Thorogood, Gordon/A-7411-2008; Llobet, Anna/B-1672-2010; Lujan Center, LANL/G-4896-2012; Singh, David/I-2416-2012; Avdeev, Maxim/A-5625-2008 OI Seshadri, Ram/0000-0001-5858-4027; Rodriguez, Efrain/0000-0001-6044-1543; Kennedy, Brendan/0000-0002-7187-4579; Thorogood, Gordon/0000-0001-9993-7896; Avdeev, Maxim/0000-0003-2366-5809 FU DOE Office of Basic Energy Sciences; DOE, Basic Energy Sciences, Materials Sciences and Engineering Division FX This work has benefited from the use of NPDF and HIPD at the Lujan Center, funded by DOE Office of Basic Energy Sciences; LANL is operated by Los Alamos National Security LLC under DE-AC52-06NA25396. We would also like to thank the Australian Research Council for the work at the University of Sydney. Work at ORNL was supported by DOE, Basic Energy Sciences, Materials Sciences and Engineering Division. NR 22 TC 54 Z9 55 U1 5 U2 64 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 FEB 7 PY 2011 VL 106 IS 6 AR 067201 DI 10.1103/PhysRevLett.106.067201 PG 4 WC Physics, Multidisciplinary SC Physics GA 717FO UT WOS:000287029100004 PM 21405490 ER PT J AU Zhang, GP Wang, CZ Ho, KM AF Zhang, G. P. Wang, C. Z. Ho, K. M. TI Andreev reflection and momentum filtering in quantum-wire/superconductive-graphene/quantum-wire junction SO PHYSICS LETTERS A LA English DT Article ID SUPERCONDUCTORS; CONDUCTIVITY; TRANSPORT; CHAIN AB Transport property of superconductive armchair graphene ribbon (AGR) connected to quantum-wire (QW) contacts is investigated via Landauer formalism combined with transfer matrix method. The scattering at the AGR/QW interface induces an obvious asymmetry in conductance as gate voltage varies. The transmission peak is located at momentum k(y) = 2 pi/3 root 3a with a = 0.142 nm. Andreev reflection (AR) enhances electronic transmission in the presence of hole reflection process. At lowest carrier density, the conductance of AGR in superconductive state becomes constant while the counterpart of semiconductive AGR in normal state decays exponentially with the length. The conductance increases with pair potential at low carrier density. The interplay between superconductivity and the scattering at the AGR/QW interface guides future application of superconductive graphene ribbon. (C) 2011 Elsevier B.V. All rights reserved. C1 [Zhang, G. P.; Wang, C. Z.; Ho, K. M.] US DOE, Ames Lab, Ames, IA 50011 USA. [Zhang, G. P.; Wang, C. Z.; Ho, K. M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Zhang, G. P.] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China. RP Zhang, GP (reprint author), US DOE, Ames Lab, Ames, IA 50011 USA. EM gzhang@iastate.edu RI Zhang, Guiping/F-4390-2011; 石, 源/D-5929-2012; ruc, phy/E-4170-2012 OI Zhang, Guiping/0000-0001-8697-5711; FU US Department of Energy, Basic Energy Sciences [DE-AC02-07CH11358] FX Work at Ames Laboratory was supported by the US Department of Energy, Basic Energy Sciences, including a grant of computer time at the National Energy Research Supercomputing Center (NERSC) in Berkeley, under Contract No. DE-AC02-07CH11358. NR 18 TC 7 Z9 7 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9601 J9 PHYS LETT A JI Phys. Lett. A PD FEB 7 PY 2011 VL 375 IS 6 BP 1043 EP 1047 DI 10.1016/j.physleta.2010.12.082 PG 5 WC Physics, Multidisciplinary SC Physics GA 722HU UT WOS:000287424100019 ER PT J AU Abazov, VM Abbott, B Abolins, M Acharya, BS Adams, M Adams, T Alexeev, GD Alkhazov, G Alton, A Alverson, G Alves, GA Ancu, LS Aoki, M Arnoud, Y Arov, M Askew, A Asman, B Atramentov, O Avila, C BackusMayes, J Badaud, F Bagby, L Baldin, B Bandurin, DV Banerjee, S Barberis, E Baringer, P Barreto, J Bartlett, JF Bassler, U Bazterra, V Beale, S Bean, A Begalli, M Begel, M Belanger-Champagne, C Bellantoni, L Beri, SB Bernardi, G Bernhard, R Bertram, I Besancon, M Beuselinck, R Bezzubov, VA Bhat, PC Bhatnagar, V Blazey, G Blessing, S Bloom, K Boehnlein, A Boline, D Bolton, TA Boos, EE Borissov, G Bose, T Brandt, A Brandt, O Brock, R Brooijmans, G Bross, A Brown, D Brown, J Bu, XB Buchholz, D Buehler, M Buescher, V Bunichev, V Burdin, S Burnett, TH Buszello, CP Calpas, B Camacho-Perez, E Carrasco-Lizarraga, MA Casey, BCK Castilla-Valdez, H Chakrabarti, S Chakraborty, D Chan, KM Chandra, A Chen, G Chevalier-Thery, S Cho, DK Cho, SW Choi, S Choudhary, B Christoudias, T Cihangir, S Claes, D Clutter, J Cooke, M Cooper, WE Corcoran, M Couderc, F Cousinou, MC Croc, A Cutts, D Cwiok, M Das, A Davies, G De, K de Jong, SJ De La Cruz-Burelo, E Deliot, F Demarteau, M Demina, R Denisov, D Denisov, SP Desai, S DeVaughan, K Diehl, HT Diesburg, M Dominguez, A Dorland, T Dubey, A Dudko, LV Duggan, D Duperrin, A Dutt, S Dyshkant, A Eads, M Edmunds, D Ellison, J Elvira, VD Enari, Y Eno, S Evans, H Evdokimov, A Evdokimov, VN Facini, G Ferbel, T Fiedler, F Filthaut, F Fisher, W Fisk, HE Fortner, M Fox, H Fuess, S Gadfort, T Garcia-Bellido, A Gavrilov, V Gay, P Geist, W Geng, W Gerbaudo, D Gerber, CE Gershtein, Y Ginther, G Golovanov, G Goussiou, A Grannis, PD Greder, S Greenlee, H Greenwood, ZD Gregores, EM Grenier, G Gris, P Grivaz, JF Grohsjean, A Grunendahl, S Grunewald, MW Guo, F Guo, J Gutierrez, G Gutierrez, P Haas, A Hagopian, S Haley, J Han, L Harder, K Harel, A Hauptman, JM Hays, J Head, T Hebbeker, T Hedin, D Hegab, H Heinson, AP Heintz, U Hensel, C Heredia-De La Cruz, I Herner, K Hesketh, G Hildreth, MD Hirosky, R Hoang, T Hobbs, JD Hoeneisen, B Hohlfeld, M Hossain, S Hubacek, Z Huske, N Hynek, V Iashvili, I Illingworth, R Ito, AS Jabeen, S Jaffre, M Jain, S Jamin, D Jesik, R Johns, K Johnson, M Johnston, D Jonckheere, A Jonsson, P Joshi, J Juste, A Kaadze, K Kajfasz, E Karmanov, D Kasper, PA Katsanos, I Kehoe, R Kermiche, S Khalatyan, N Khanov, A Kharchilava, A Kharzheev, YN Khatidze, D Kirby, MH Kohli, JM Kozelov, AV Kraus, J Kumar, A Kupco, A Kurca, T Kuzmin, VA Kvita, J Lammers, S Landsberg, G Lebrun, P Lee, HS Lee, SW Lee, WM Lellouch, J Li, L Li, QZ Lietti, SM Lim, JK Lincoln, D Linnemann, J Lipaev, VV Lipton, R Liu, Y Liu, Z Lobodenko, A Lokajicek, M Love, P Lubatti, HJ Luna-Garcia, R Lyon, AL Maciel, AKA Mackin, D Madar, R Magana-Villalba, R Malik, S Malyshev, VL Maravin, Y Martinez-Ortega, J McCarthy, R McGivern, CL Meijer, MM Melnitchouk, A Menezes, D Mercadante, PG Merkin, M Meyer, A Meyer, J Mondal, NK Muanza, GS Mulhearn, M Nagy, E Naimuddin, M Narain, M Nayyar, R Neal, HA Negret, JP Neustroev, P Novaes, SF Nunnemann, T Obrant, G Orduna, J Osman, N Osta, J Garzon, GJOY Owen, M Padilla, M Pangilinan, M Parashar, N Parihar, V Park, SK Parsons, J Partridge, R Parua, N Patwa, A Penning, B Perfilov, M Peters, K Peters, Y Petrillo, G Petroff, P Piegaia, R Piper, J Pleier, MA Podesta-Lerma, PLM Podstavkov, VM Pol, ME Polozov, P Popov, AV Prewitt, M Price, D Protopopescu, S Qian, J Quadt, A Quinn, B Rangel, MS Ranjan, K Ratoff, PN Razumov, I Renkel, P Rich, P Rijssenbeek, M Ripp-Baudot, I Rizatdinova, F Rominsky, M Royon, C Rubinov, P Ruchti, R Safronov, G Sajot, G Sanchez-Hernandez, A Sanders, MP Sanghi, B Santos, AS Savage, G Sawyer, L Scanlon, T Schamberger, RD Scheglov, Y Schellman, H Schliephake, T Schlobohm, S Schwanenberger, C Schwienhorst, R Sekaric, J Severini, H Shabalina, E Shary, V Shchukin, AA Shivpuri, RK Simak, V Sirotenko, V Skubic, P Slattery, P Smirnov, D Smith, KJ Snow, GR Snow, J Snyder, S Soldner-Rembold, S Sonnenschein, L Sopczak, A Sosebee, M Soustruznik, K Spurlock, B Stark, J Stolin, V Stoyanova, DA Strauss, E Strauss, M Strom, D Stutte, L Svoisky, P Takahashi, M Tanasijczuk, A Taylor, W Titov, M Tokmenin, VV Tsybychev, D Tuchming, B Tully, C Tuts, PM Uvarov, L Uvarov, S Uzunyan, S Van Kooten, R van Leeuwen, WM Varelas, N Varnes, EW Vasilyev, IA Verdier, P Vertogradov, LS Verzocchi, M Vesterinen, M Vilanova, D Vint, P Vokac, P Wahl, HD Wang, MHLS Warchol, J Watts, G Wayne, M Weber, M Welty-Rieger, L Wetstein, M White, A Wicke, D Williams, MRJ Wilson, GW Wimpenny, SJ Wobisch, M Wood, DR Wyatt, TR Xie, Y Xu, C Yacoob, S Yamada, R Yang, WC Yasuda, T Yatsunenko, YA Ye, Z Yin, H Yip, K Yoo, HD Youn, SW Yu, J Zelitch, S Zhao, T Zhou, B Zhu, J Zielinski, M Zieminska, D Zivkovic, L AF Abazov, V. M. Abbott, B. Abolins, M. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G. Alton, A. Alverson, G. Alves, G. A. Ancu, L. S. Aoki, M. Arnoud, Y. Arov, M. Askew, A. Asman, B. Atramentov, O. Avila, C. BackusMayes, J. Badaud, F. Bagby, L. Baldin, B. Bandurin, D. V. Banerjee, S. Barberis, E. Baringer, P. Barreto, J. Bartlett, J. F. Bassler, U. Bazterra, V. Beale, S. Bean, A. Begalli, M. Begel, M. Belanger-Champagne, C. Bellantoni, L. Beri, S. B. Bernardi, G. Bernhard, R. Bertram, I. Besancon, M. Beuselinck, R. Bezzubov, V. A. Bhat, P. C. Bhatnagar, V. Blazey, G. Blessing, S. Bloom, K. Boehnlein, A. Boline, D. Bolton, T. A. Boos, E. E. Borissov, G. Bose, T. Brandt, A. Brandt, O. Brock, R. Brooijmans, G. Bross, A. Brown, D. Brown, J. Bu, X. B. Buchholz, D. Buehler, M. Buescher, V. Bunichev, V. Burdin, S. Burnett, T. H. Buszello, C. P. Calpas, B. Camacho-Perez, E. Carrasco-Lizarraga, M. A. Casey, B. C. K. Castilla-Valdez, H. Chakrabarti, S. Chakraborty, D. Chan, K. M. Chandra, A. Chen, G. Chevalier-Thery, S. Cho, D. K. Cho, S. W. Choi, S. Choudhary, B. Christoudias, T. Cihangir, S. Claes, D. Clutter, J. Cooke, M. Cooper, W. E. Corcoran, M. Couderc, F. Cousinou, M. -C. Croc, A. Cutts, D. Cwiok, M. Das, A. Davies, G. De, K. de Jong, S. J. De La Cruz-Burelo, E. Deliot, F. Demarteau, M. Demina, R. Denisov, D. Denisov, S. P. Desai, S. DeVaughan, K. Diehl, H. T. Diesburg, M. Dominguez, A. Dorland, T. Dubey, A. Dudko, L. V. Duggan, D. Duperrin, A. Dutt, S. Dyshkant, A. Eads, M. Edmunds, D. Ellison, J. Elvira, V. D. Enari, Y. Eno, S. Evans, H. Evdokimov, A. Evdokimov, V. N. Facini, G. Ferbel, T. Fiedler, F. Filthaut, F. Fisher, W. Fisk, H. E. Fortner, M. Fox, H. Fuess, S. Gadfort, T. Garcia-Bellido, A. Gavrilov, V. Gay, P. Geist, W. Geng, W. Gerbaudo, D. Gerber, C. E. Gershtein, Y. Ginther, G. Golovanov, G. Goussiou, A. Grannis, P. D. Greder, S. Greenlee, H. Greenwood, Z. D. Gregores, E. M. Grenier, G. Gris, Ph. Grivaz, J. -F. Grohsjean, A. Gruenendahl, S. Gruenewald, M. W. Guo, F. Guo, J. Gutierrez, G. Gutierrez, P. Haas, A. Hagopian, S. Haley, J. Han, L. Harder, K. Harel, A. Hauptman, J. M. Hays, J. Head, T. Hebbeker, T. Hedin, D. Hegab, H. Heinson, A. P. Heintz, U. Hensel, C. Heredia-De La Cruz, I. Herner, K. Hesketh, G. Hildreth, M. D. Hirosky, R. Hoang, T. Hobbs, J. D. Hoeneisen, B. Hohlfeld, M. Hossain, S. Hubacek, Z. Huske, N. Hynek, V. Iashvili, I. Illingworth, R. Ito, A. S. Jabeen, S. Jaffre, M. Jain, S. Jamin, D. Jesik, R. Johns, K. Johnson, M. Johnston, D. Jonckheere, A. Jonsson, P. Joshi, J. Juste, A. Kaadze, K. Kajfasz, E. Karmanov, D. Kasper, P. A. Katsanos, I. Kehoe, R. Kermiche, S. Khalatyan, N. Khanov, A. Kharchilava, A. Kharzheev, Y. N. Khatidze, D. Kirby, M. H. Kohli, J. M. Kozelov, A. V. Kraus, J. Kumar, A. Kupco, A. Kurca, T. Kuzmin, V. A. Kvita, J. Lammers, S. Landsberg, G. Lebrun, P. Lee, H. S. Lee, S. W. Lee, W. M. Lellouch, J. Li, L. Li, Q. Z. Lietti, S. M. Lim, J. K. Lincoln, D. Linnemann, J. Lipaev, V. V. Lipton, R. Liu, Y. Liu, Z. Lobodenko, A. Lokajicek, M. Love, P. Lubatti, H. J. Luna-Garcia, R. Lyon, A. L. Maciel, A. K. A. Mackin, D. Madar, R. Magana-Villalba, R. Malik, S. Malyshev, V. L. Maravin, Y. Martinez-Ortega, J. McCarthy, R. McGivern, C. L. Meijer, M. M. Melnitchouk, A. Menezes, D. Mercadante, P. G. Merkin, M. Meyer, A. Meyer, J. Mondal, N. K. Muanza, G. S. Mulhearn, M. Nagy, E. Naimuddin, M. Narain, M. Nayyar, R. Neal, H. A. Negret, J. P. Neustroev, P. Novaes, S. F. Nunnemann, T. Obrant, G. Orduna, J. Osman, N. Osta, J. Otero y Garzon, G. J. Owen, M. Padilla, M. Pangilinan, M. Parashar, N. Parihar, V. Park, S. K. Parsons, J. Partridge, R. Parua, N. Patwa, A. Penning, B. Perfilov, M. Peters, K. Peters, Y. Petrillo, G. Petroff, P. Piegaia, R. Piper, J. Pleier, M. -A. Podesta-Lerma, P. L. M. Podstavkov, V. M. Pol, M. -E. Polozov, P. Popov, A. V. Prewitt, M. Price, D. Protopopescu, S. Qian, J. Quadt, A. Quinn, B. Rangel, M. S. Ranjan, K. Ratoff, P. N. Razumov, I. Renkel, P. Rich, P. Rijssenbeek, M. Ripp-Baudot, I. Rizatdinova, F. Rominsky, M. Royon, C. Rubinov, P. Ruchti, R. Safronov, G. Sajot, G. Sanchez-Hernandez, A. Sanders, M. P. Sanghi, B. Santos, A. S. Savage, G. Sawyer, L. Scanlon, T. Schamberger, R. D. Scheglov, Y. Schellman, H. Schliephake, T. Schlobohm, S. Schwanenberger, C. Schwienhorst, R. Sekaric, J. Severini, H. Shabalina, E. Shary, V. Shchukin, A. A. Shivpuri, R. K. Simak, V. Sirotenko, V. Skubic, P. Slattery, P. Smirnov, D. Smith, K. J. Snow, G. R. Snow, J. Snyder, S. Soeldner-Rembold, S. Sonnenschein, L. Sopczak, A. Sosebee, M. Soustruznik, K. Spurlock, B. Stark, J. Stolin, V. Stoyanova, D. A. Strauss, E. Strauss, M. Strom, D. Stutte, L. Svoisky, P. Takahashi, M. Tanasijczuk, A. Taylor, W. Titov, M. Tokmenin, V. V. Tsybychev, D. Tuchming, B. Tully, C. Tuts, P. M. Uvarov, L. Uvarov, S. Uzunyan, S. Van Kooten, R. van Leeuwen, W. M. Varelas, N. Varnes, E. W. Vasilyev, I. A. Verdier, P. Vertogradov, L. S. Verzocchi, M. Vesterinen, M. Vilanova, D. Vint, P. Vokac, P. Wahl, H. D. Wang, M. H. L. S. Warchol, J. Watts, G. Wayne, M. Weber, M. Welty-Rieger, L. Wetstein, M. White, A. Wicke, D. Williams, M. R. J. Wilson, G. W. Wimpenny, S. J. Wobisch, M. Wood, D. R. Wyatt, T. R. Xie, Y. Xu, C. Yacoob, S. Yamada, R. Yang, W. -C. Yasuda, T. Yatsunenko, Y. A. Ye, Z. Yin, H. Yip, K. Yoo, H. D. Youn, S. W. Yu, J. Zelitch, S. Zhao, T. Zhou, B. Zhu, J. Zielinski, M. Zieminska, D. Zivkovic, L. CA D0 Collaboration TI Search for pair production of the scalar top quark in the electron plus muon final state SO PHYSICS LETTERS B LA English DT Article DE Supersymmetry; Squarks; Supersymmetric top ID P(P)OVER-BAR COLLISIONS; ROOT-S=1.96 TEV; FORTRAN CODE; 2 LEPTONS; EVENTS AB We report the result of a search for the pair production of the lightest supersymmetric partner of the top quark ((t) over tilde (1)) in p (p) over bar collisions at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider corresponding to an integrated luminosity of 5.4 fb(-1). The scalar top quarks are assumed to decay into a b quark, a charged lepton, and a scalar neutrino ((nu) over bar). and the search is performed in the electron plus muon final state. No significant excess of events above the standard model prediction is detected, and substantially improved exclusion limits at the 95% C.L. are set in the the (M((t) over tilde1), M((nu) over tilde) mass plane. (C) 2010 Elsevier B.V. All rights reserved. C1 [Abazov, V. M.; Alexeev, G. D.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Naimuddin, M.; Tokmenin, V. V.; Vertogradov, L. S.; Yatsunenko, Y. A.; Ye, Z.] Joint Inst Nucl Res, Dubna, Russia. [Otero y Garzon, G. J.; Piegaia, R.; Tanasijczuk, A.] Univ Buenos Aires, Buenos Aires, DF, Argentina. [Alves, G. A.; Barreto, J.; Maciel, A. K. A.; Pol, M. -E.; Rangel, M. S.] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil. [Begalli, M.] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil. [Gregores, E. M.; Mercadante, P. G.] Univ Fed ABC, Santo Andre, Brazil. [Lietti, S. M.; Novaes, S. F.; Santos, A. S.] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil. [Beale, S.; Liu, Z.; Taylor, W.] York Univ, Toronto, ON M3J 2R7, Canada. [Beale, S.; Liu, Z.; Taylor, W.] Simon Fraser Univ, Vancouver, BC, Canada. [Bu, X. B.; Han, L.; Liu, Y.; Yin, H.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Avila, C.; Negret, J. P.] Univ Los Andes, Bogota, Colombia. [Kvita, J.; Soustruznik, K.] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic. [Hubacek, Z.; Hynek, V.; Simak, V.; Vokac, P.] Czech Tech Univ, CR-16635 Prague, Czech Republic. [Kupco, A.; Lokajicek, M.] Acad Sci Czech Republic, Inst Phys, Ctr Particle Phys, Prague, Czech Republic. [Hoeneisen, B.] Univ San Francisco Quito, Quito, Ecuador. [Badaud, F.; Gay, P.; Gris, Ph.] Univ Clermont Ferrand, LPC, CNRS IN2P3, Clermont, France. [Arnoud, Y.; Sajot, G.; Stark, J.] Univ Grenoble 1, CNRS, LPSC, Inst Natl Polytech Grenoble,IN2P3, Grenoble, France. [Calpas, B.; Cousinou, M. -C.; Duperrin, A.; Geng, W.; Jamin, D.; Kajfasz, E.; Kermiche, S.; Muanza, G. S.; Nagy, E.] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France. [Grivaz, J. -F.; Jaffre, M.; Petroff, P.] Univ Paris 11, CNRS, LAL, IN2P3, F-91405 Orsay, France. [Bernardi, G.; Brown, D.; Brown, J.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 06, CNRS, LPNHE, IN2P3, Paris, France. [Bernardi, G.; Brown, D.; Brown, J.; Enari, Y.; Huske, N.; Lellouch, J.] Univ Paris 07, CNRS, LPNHE, IN2P3, Paris, France. [Bassler, U.; Besancon, M.; Chevalier-Thery, S.; Couderc, F.; Croc, A.; Deliot, F.; Grohsjean, A.; Madar, R.; Royon, C.; Shary, V.; Titov, M.; Tuchming, B.; Vilanova, D.] CEA, SPP, Saclay, France. [Geist, W.; Greder, S.; Ripp-Baudot, I.] Univ Strasbourg, IPHC, CNRS, IN2P3, Strasbourg, France. [Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon 1, CNRS, IPNL, IN2P3, F-69622 Villeurbanne, France. [Grenier, G.; Kurca, T.; Lebrun, P.; Verdier, P.] Univ Lyon, Lyon, France. [Hebbeker, T.; Meyer, A.; Sonnenschein, L.] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany. [Bernhard, R.] Univ Freiburg, Inst Phys, Freiburg, Germany. [Brandt, O.; Hensel, C.; Meyer, J.; Quadt, A.; Shabalina, E.] Univ Gottingen, Inst Phys 2, Gottingen, Germany. [Buescher, V.; Fiedler, F.; Hohlfeld, M.; Wicke, D.] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany. [Nunnemann, T.; Sanders, M. P.] Univ Munich, Munich, Germany. [Schliephake, T.] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany. [Beri, S. B.; Bhatnagar, V.; Dutt, S.; Joshi, J.; Kohli, J. M.] Panjab Univ, Chandigarh 160014, India. [Choudhary, B.; Dubey, A.; Naimuddin, M.; Nayyar, R.; Ranjan, K.; Shivpuri, R. K.] Univ Delhi, Delhi 110007, India. [Acharya, B. S.; Banerjee, S.; Mondal, N. K.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India. [Cwiok, M.; Gruenewald, M. W.] Univ Coll Dublin, Dublin 2, Ireland. [Cho, S. W.; Choi, S.; Lee, H. S.; Lim, J. K.; Park, S. K.] Korea Univ, Korea Detector Lab, Seoul, South Korea. [Camacho-Perez, E.; Carrasco-Lizarraga, M. A.; Castilla-Valdez, H.; De La Cruz-Burelo, E.; Heredia-De La Cruz, I.; Luna-Garcia, R.; Magana-Villalba, R.; Martinez-Ortega, J.; Orduna, J.; Podesta-Lerma, P. L. M.; Sanchez-Hernandez, A.] CINVESTAV, Mexico City 14000, DF, Mexico. [van Leeuwen, W. M.] FOM Inst NIKHEF, Amsterdam, Netherlands. [van Leeuwen, W. M.] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands. [Ancu, L. S.; de Jong, S. J.; Filthaut, F.; Meijer, M. M.] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands. [Gavrilov, V.; Polozov, P.; Safronov, G.; Stolin, V.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Boos, E. E.; Bunichev, V.; Dudko, L. V.; Karmanov, D.; Kuzmin, V. A.; Merkin, M.; Perfilov, M.] Moscow MV Lomonosov State Univ, Moscow, Russia. [Bezzubov, V. A.; Denisov, S. P.; Evdokimov, V. N.; Kozelov, A. V.; Lipaev, V. V.; Popov, A. V.; Razumov, I.; Shchukin, A. A.; Stoyanova, D. A.; Vasilyev, I. A.] Inst High Energy Phys, Protvino, Russia. [Alkhazov, G.; Lobodenko, A.; Neustroev, P.; Obrant, G.; Scheglov, Y.; Uvarov, L.; Uvarov, S.] Petersburg Nucl Phys Inst, St Petersburg, Russia. [Asman, B.; Belanger-Champagne, C.] Stockholm Univ, S-10691 Stockholm, Sweden. [Asman, B.; Belanger-Champagne, C.] Uppsala Univ, Uppsala, Sweden. [Bertram, I.; Borissov, G.; Burdin, S.; Fox, H.; Jonsson, P.; Love, P.; Ratoff, P. N.; Sopczak, A.; Williams, M. R. J.] Univ Lancaster, Lancaster LA1 4YB, England. [Beuselinck, R.; Buszello, C. P.; Christoudias, T.; Davies, G.; Hays, J.; Jesik, R.; Osman, N.; Scanlon, T.; Vint, P.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Harder, K.; Head, T.; Owen, M.; Peters, K.; Peters, Y.; Rich, P.; Schwanenberger, C.; Soeldner-Rembold, S.; Takahashi, M.; Vesterinen, M.; Wyatt, T. R.; Yang, W. -C.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Das, A.; Johns, K.; Varnes, E. W.] Univ Arizona, Tucson, AZ 85721 USA. [Ellison, J.; Heinson, A. P.; Li, L.; Padilla, M.; Wimpenny, S. J.] Univ Calif Riverside, Riverside, CA 92521 USA. [Adams, T.; Askew, A.; Bandurin, D. V.; Blessing, S.; Hagopian, S.; Hoang, T.; Wahl, H. D.] Florida State Univ, Tallahassee, FL 32306 USA. [Aoki, M.; Bagby, L.; Baldin, B.; Bartlett, J. F.; Bellantoni, L.; Bhat, P. C.; Boehnlein, A.; Bross, A.; Casey, B. C. K.; Cihangir, S.; Cooke, M.; Cooper, W. E.; Demarteau, M.; Denisov, D.; Desai, S.; Diehl, H. T.; Diesburg, M.; Elvira, V. D.; Fisk, H. E.; Fuess, S.; Ginther, G.; Greenlee, H.; Gruenendahl, S.; Gutierrez, G.; Illingworth, R.; Ito, A. S.; Johnson, M.; Jonckheere, A.; Juste, A.; Kasper, P. A.; Khalatyan, N.; Lee, W. M.; Li, Q. Z.; Lincoln, D.; Lipton, R.; Lyon, A. L.; Penning, B.; Podstavkov, V. M.; Rominsky, M.; Rubinov, P.; Sanghi, B.; Savage, G.; Sirotenko, V.; Stutte, L.; Verzocchi, M.; Weber, M.; Xie, Y.; Yamada, R.; Yasuda, T.; Youn, S. W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Adams, M.; Bazterra, V.; Gerber, C. E.; Strom, D.; Varelas, N.] Univ Illinois, Chicago, IL 60607 USA. [Blazey, G.; Chakraborty, D.; Dyshkant, A.; Fortner, M.; Hedin, D.; Menezes, D.; Uzunyan, S.] No Illinois Univ, De Kalb, IL 60115 USA. [Buchholz, D.; Kirby, M. H.; Schellman, H.; Welty-Rieger, L.; Yacoob, S.] Northwestern Univ, Evanston, IL 60208 USA. [Evans, H.; Lammers, S.; Parua, N.; Price, D.; Van Kooten, R.; Zieminska, D.] Indiana Univ, Bloomington, IN 47405 USA. [Parashar, N.] Purdue Univ Calumet, Hammond, IN 46323 USA. [Chan, K. M.; Hildreth, M. D.; Osta, J.; Ruchti, R.; Smirnov, D.; Warchol, J.; Wayne, M.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Hauptman, J. M.; Lee, S. W.] Iowa State Univ, Ames, IA 50011 USA. [Baringer, P.; Bean, A.; Chen, G.; Clutter, J.; McGivern, C. L.; Sekaric, J.; Wilson, G. W.] Univ Kansas, Lawrence, KS 66045 USA. [Bolton, T. A.; Kaadze, K.; Maravin, Y.] Kansas State Univ, Manhattan, KS 66506 USA. [Arov, M.; Greenwood, Z. D.; Sawyer, L.; Wobisch, M.] Louisiana Tech Univ, Ruston, LA 71272 USA. [Eno, S.; Ferbel, T.; Wetstein, M.] Univ Maryland, College Pk, MD 20742 USA. [Bose, T.] Boston Univ, Boston, MA 02215 USA. [Alverson, G.; Barberis, E.; Facini, G.; Haley, J.; Hesketh, G.; Wood, D. R.] Northeastern Univ, Boston, MA 02115 USA. [Abolins, M.; Brock, R.; Edmunds, D.; Fisher, W.; Kraus, J.; Linnemann, J.; Piper, J.; Schwienhorst, R.] Michigan State Univ, E Lansing, MI 48824 USA. [Alton, A.; Herner, K.; Neal, H. A.; Qian, J.; Xu, C.; Zhou, B.; Zhu, J.] Univ Michigan, Ann Arbor, MI 48109 USA. [Melnitchouk, A.; Quinn, B.] Univ Mississippi, University, MS 38677 USA. [Bloom, K.; Claes, D.; DeVaughan, K.; Dominguez, A.; Eads, M.; Johnston, D.; Katsanos, I.; Malik, S.; Snow, G. R.] Univ Nebraska, Lincoln, NE 68588 USA. [Atramentov, O.; Duggan, D.; Gershtein, Y.] Rutgers State Univ, Piscataway, NJ 08855 USA. [Gerbaudo, D.; Tully, C.] Princeton Univ, Princeton, NJ 08544 USA. [Iashvili, I.; Jain, S.; Kharchilava, A.; Kumar, A.; Smith, K. J.] SUNY Buffalo, Buffalo, NY 14260 USA. [Brooijmans, G.; Haas, A.; Parsons, J.; Tuts, P. M.; Zivkovic, L.] Columbia Univ, New York, NY 10027 USA. [Demina, R.; Garcia-Bellido, A.; Harel, A.; Petrillo, G.; Slattery, P.; Wang, M. H. L. S.; Zielinski, M.] Univ Rochester, Rochester, NY 14627 USA. [Snow, J.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Begel, M.; Evdokimov, A.; Gadfort, T.; Patwa, A.; Pleier, M. -A.; Protopopescu, S.; Snyder, S.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Snow, J.] Langston Univ, Langston, OK 73050 USA. [Abbott, B.; Gutierrez, P.; Hossain, S.; Severini, H.; Skubic, P.; Strauss, M.; Svoisky, P.] Univ Oklahoma, Norman, OK 73019 USA. [Hegab, H.; Khanov, A.; Rizatdinova, F.] Oklahoma State Univ, Stillwater, OK 74078 USA. [Cho, D. K.; Cutts, D.; Heintz, U.; Jabeen, S.; Khatidze, D.; Landsberg, G.; Narain, M.; Pangilinan, M.; Parihar, V.; Partridge, R.; Yoo, H. D.] Brown Univ, Providence, RI 02912 USA. [Brandt, A.; De, K.; Sosebee, M.; Spurlock, B.; White, A.; Yu, J.] Univ Texas Arlington, Arlington, TX 76019 USA. [Kehoe, R.; Renkel, P.] So Methodist Univ, Dallas, TX 75275 USA. [Chandra, A.; Corcoran, M.; Mackin, D.; Prewitt, M.] Rice Univ, Houston, TX 77005 USA. [Buehler, M.; Hirosky, R.; Mulhearn, M.; Zelitch, S.] Univ Virginia, Charlottesville, VA 22901 USA. [BackusMayes, J.; Burnett, T. H.; Dorland, T.; Goussiou, A.; Lubatti, H. J.; Schlobohm, S.; Watts, G.; Zhao, T.] Univ Washington, Seattle, WA 98195 USA. RP Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. RI De, Kaushik/N-1953-2013; Ancu, Lucian Stefan/F-1812-2010; Alves, Gilvan/C-4007-2013; Deliot, Frederic/F-3321-2014; Sharyy, Viatcheslav/F-9057-2014; Lokajicek, Milos/G-7800-2014; Kupco, Alexander/G-9713-2014; Kozelov, Alexander/J-3812-2014; Christoudias, Theodoros/E-7305-2015; Gerbaudo, Davide/J-4536-2012; Li, Liang/O-1107-2015; Wimpenny, Stephen/K-8848-2013; Fisher, Wade/N-4491-2013; Gutierrez, Phillip/C-1161-2011; Bolton, Tim/A-7951-2012; bu, xuebing/D-1121-2012; Merkin, Mikhail/D-6809-2012; Dudko, Lev/D-7127-2012; Perfilov, Maxim/E-1064-2012; Boos, Eduard/D-9748-2012; Novaes, Sergio/D-3532-2012; Santos, Angelo/K-5552-2012; Mercadante, Pedro/K-1918-2012; Yip, Kin/D-6860-2013 OI Williams, Mark/0000-0001-5448-4213; Weber, Michele/0000-0002-2770-9031; Grohsjean, Alexander/0000-0003-0748-8494; Melnychuk, Oleksandr/0000-0002-2089-8685; Bassler, Ursula/0000-0002-9041-3057; Price, Darren/0000-0003-2750-9977; Filthaut, Frank/0000-0003-3338-2247; Bertram, Iain/0000-0003-4073-4941; Belanger-Champagne, Camille/0000-0003-2368-2617; De, Kaushik/0000-0002-5647-4489; Ancu, Lucian Stefan/0000-0001-5068-6723; Sharyy, Viatcheslav/0000-0002-7161-2616; Christoudias, Theodoros/0000-0001-9050-3880; Gerbaudo, Davide/0000-0002-4463-0878; Li, Liang/0000-0001-6411-6107; Wimpenny, Stephen/0000-0003-0505-4908; Dudko, Lev/0000-0002-4462-3192; Novaes, Sergio/0000-0003-0471-8549; Yip, Kin/0000-0002-8576-4311 FU DOE; NSF (USA); CEA; CNRS/IN2P3 (France); FASI; Rosatom; RFBR (Russia); CNPq; FAPERJ; FAPESP; FUNDUNESP (Brazil); DAE; DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF; KOSEF (Korea); CONICET; UBACyT (Argentina); FOM (The Netherlands); STFC; Royal Society (United Kingdom); MSMT; GACR (Czech Republic); CRC; NSERC (Canada); BMBF; DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); CAS; CNSF (China) FX We thank the staffs at Fermilab and collaborating institutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom and RFBR (Russia); CNPq, FAPERJ, FAPESP and FUNDUNESP (Brazil); DAE and DST (India); Colciencias (Colombia); CONACyT (Mexico); KRF and KOSEF (Korea); CONICET and UBACyT (Argentina); FOM (The Netherlands); STFC and the Royal Society (United Kingdom); MSMT and GACR (Czech Republic); CRC Program and NSERC (Canada); BMBF and DFG (Germany); SFI (Ireland); The Swedish Research Council (Sweden); and CAS and CNSF (China). NR 21 TC 17 Z9 17 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD FEB 7 PY 2011 VL 696 IS 4 BP 321 EP 327 DI 10.1016/j.physletb.2010.12.052 PG 7 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 717NU UT WOS:000287055500003 ER PT J AU Aamodt, K Quintana, AA Adamova, D Adare, AM Aggarwal, MM Rinella, GA Agocs, AG Salazar, SA Ahammed, Z Ahmad, N Masoodi, AA Ahn, SU Akindinov, A Aleksandrov, D Alessandro, B Molina, RA Alici, A Alkin, A Avina, EA Alt, T Altini, V Altinpinar, S Altsybeev, I Andrei, C Andronic, A Anguelov, V Anson, C Anticic, T Antinori, F Antonioli, P Aphecetche, L Appelshauser, H Arbor, N Arcelli, S Arend, A Armesto, N Arnaldi, R Aronsson, T Arsene, IC Asryan, A Augustinus, A Averbeck, R Awes, TC Aysto, J Azmi, MD Bach, M Badala, A Baek, YW Bagnasco, S Bailhache, R Bala, R Ferroli, RB Baldisseri, A Baldit, A Ban, J Barbera, R Barile, F Barnafoldi, GG Barnby, LS Barret, V Bartke, J Basile, M Bastid, N Bathen, B Batigne, G Batyunya, B Baumann, C Bearden, IG Beck, H Belikov, I Bellini, F Bellwied, R Belmont-Moreno, E Beole, S Berceanu, I Bercuci, A Berdermann, E Berdnikov, Y Betev, L Bhasin, A Bhati, AK Bianchi, L Bianchi, N Bianchin, C Bielcik, J Bielcikova, J Bilandzic, A Biolcati, E Blanc, A Blanco, F Blanco, F Blau, D Blume, C Boccioli, M Bock, N Bogdanov, A Boggild, H Bogolyubsky, M Boldizsar, L Bombara, M Bombonati, C Book, J Borel, H Bortolin, C Bose, S Bossu, F Botje, M Bottger, S Boyer, B Braun-Munzinger, P Bravina, L Bregant, M Breitner, T Broz, M Brun, R Bruna, E Bruno, GE Budnikov, D Buesching, H Busch, O Buthelezi, Z Caffarri, D Cai, X Caines, H Villar, EC Camerini, P Roman, VC Romeo, GC Carena, F Carena, W Carminati, F Diaz, AC Caselle, M Castellanos, JC Catanescu, V Cavicchioli, C Cerello, P Chang, B Chapeland, S Charvet, JL Chattopadhyay, S Chattopadhyay, S Cherney, M Cheshkov, C Cheynis, B Chiavassa, E Barroso, VC Chinellato, DD Chochula, P Chojnacki, M Christakoglou, P Christensen, CH Christiansen, P Chujo, T Cicalo, C Cifarelli, L Cindolo, F Cleymans, J Coccetti, F Coffin, JP Coli, S Balbastre, GC del Valle, ZC Constantin, P Contin, G Contreras, JG Cormier, TM Morales, YC Maldonado, IC Cortese, P Cosentino, MR Costa, F Cotallo, ME Crescio, E Crochet, P Cuautle, E Cunqueiro, L D'Erasmo, G Dainese, A Dalsgaard, HH Danu, A Das, D Das, I Dash, A Dash, S De, S Moregula, AD de Barros, GOV De Caro, A de Cataldo, G de Cuveland, J De Falco, A De Gruttola, D De Marco, N De Pasquale, S De Remigis, R de Rooij, R Delagrange, H Mercado, YD Dellacasa, G Deloff, A Demanov, V Denes, E Deppman, A Di Bari, D Di Giglio, C Di Liberto, S Di Mauro, A Di Nezza, P Dietel, T Divia, R Djuvsland, O Dobrin, A Dobrowolski, T Dominguez, I Doniguss, B Dordic, O Driga, O Dubey, AK Ducroux, L Dupieux, P Majumdar, AKD Majumdar, MRD Elia, D Emschermann, D Engel, H Erdal, HA Espagnon, B Estienne, M Esumi, S Evans, D Evrard, S Eyyubova, G Fabjan, CW Fabris, D Faivre, J Falchieri, D Fantoni, A Fasel, M Fearick, R Fedunov, A Fehlker, D Fekete, V Felea, D Feofilov, G Tellez, AF Ferretti, A Ferretti, R Figueredo, MAS Filchagin, S Fini, R Finogeev, D Fionda, FM Fiore, EM Floris, M Foertsch, S Foka, P Fokin, S Fragiacomo, E Fragkiadakis, M Frankenfeld, U Fuchs, U Furano, F Furget, C Girard, MF Gaardhoje, JJ Gadrat, S Gagliardi, M Gago, A Gallio, M Ganoti, P Garabatos, C Gemme, R Gerhard, J Germain, M Geuna, C Gheata, A Gheata, M Ghidini, B Ghosh, P Girard, MR Giraudo, G Giubellino, P Gladysz-Dziadus, E Glassel, P Gomez, R Gonzalez-Trueba, LH Gonzalez-Zamora, P Santos, HG Gorbunov, S Gotovac, S Grabski, V Grajcarek, R Gramling, JL Grelli, A Grigoras, A Grigoras, C Grigoriev, V Grigoryan, A Grigoryan, S Grinyov, B Grion, N Gros, P Grosse-Oetringhaus, JF Grossiord, JY Grosso, R Guber, F Guernane, R Gutierrez, CG Guerzoni, B Gulbrandsen, K Gulkanyan, H Gunji, T Gupta, A Gupta, R Gutbrod, H Haaland, O Hadjidakis, C Haiduc, M Hamagaki, H Hamar, G Harris, JW Hartig, M Hasch, D Hasegan, D Hatzifotiadou, D Hayrapetyan, A Heide, M Heinz, M Helstrup, H Herghelegiu, A Hernandez, C Corral, GH Herrmann, N Hetland, KF Hicks, B Hille, PT Hippolyte, B Horaguchi, T Hori, Y Hristov, P Hrivnacova, I Huang, M Huber, S Humanic, TJ Hwang, DS Ichou, R Ilkaev, R Ilkiv, I Inaba, M Incani, E Innocenti, GM Innocenti, PG Ippolitov, M Irfan, M Ivan, C Ivanov, A Ivanov, M Ivanov, V Jacholkowski, A Jacobs, PM Jancurova, L Jangal, S Janik, R Jayarathna, SP Jena, S Jirden, L Jones, GT Jones, PG Jovanovic, P Jung, H Jung, W Jusko, A Kalcher, S Kalinak, P Kalisky, M Kalliokoski, T Kalweit, A Kamermans, R Kanaki, K Kang, E Kang, JH Kaplin, V Karavichev, O Karavicheva, T Karpechev, E Kazantsev, A Kebschull, U Keidel, R Khan, MM Khanzadeev, A Kharlov, Y Kileng, B Kim, DJ Kim, DS Kim, DW Kim, HN Kim, JH Kim, JS Kim, M Kim, M Kim, S Kim, SH Kirsch, S Kisel, I Kiselev, S Kisiel, A Klay, JL Klein, J Klein-Bosing, C Kliemant, M Klovning, A Kluge, A Knichel, ML Koch, K Kohler, MK Kolevatov, R Kolojvari, A Kondratiev, V Kondratyeva, N Konevskih, A Kornas, 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CA ALICE Collaboration TI Two-pion Bose-Einstein correlations in central Pb-Pb collisions at root(NN)-N-S=2.76 TeV SO PHYSICS LETTERS B LA English DT Article DE LHC; Heavy-ion collisions; HBT; Femtoscopy; Intensity interferometry ID HEAVY-ION COLLISIONS; NUCLEUS-NUCLEUS COLLISIONS; QUARK-GLUON PLASMA; PION INTERFEROMETRY; EXPANDING HADRON; ENERGY-DEPENDENCE; MATTER; HYDRODYNAMICS; COLLABORATION; SYSTEMS AB The first measurement of two-pion Bose-Einstein correlations in central Pb-Pb collisions at root(NN)-N-S = 2.76 TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal and the outward but also for the sideward pion source radius. The pion homogeneity volume and the decoupling time are significantly larger than those measured at RHIC. (C) 2010 CERN. Published by Elsevier B.V. All rights reserved. C1 [Aamodt, K.; Djuvsland, O.; Fehlker, D.; Haaland, O.; Huang, M.; Kanaki, K.; Klovning, A.; Larsen, D. 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[Jacobs, P. M.; Loizides, C.; Ploskon, M.; Sakai, S.; Symons, T. J. M.] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Jena, S.; Koyithatta Meethaleveedu, G.; Nandi, B. K.; Nyatha, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India. [Kalweit, A.; Kraus, I.; Oeschler, H.; Ricaud, H.] Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany. [Kang, J. H.; Kim, M.; Kwon, Y.; Song, M.] Yonsei Univ, Seoul 120749, South Korea. [Kang, J. H.; Kim, M.; Kwon, Y.; Song, M.] Fachhsch Worms, ZTT, Worms, Germany. [Klay, J. L.] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA. [Li, X.] China Inst Atom Energy, Beijing, Peoples R China. [Mares, J.; Polak, K.; Zavada, P.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic. [Martashvili, I.; Nattrass, C.; Read, K. F.; Scott, R.; Soloviev, A.] Univ Tennessee, Knoxville, TN USA. [Meddi, F.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. [Midori, J.; Obayashi, H.; Shigaki, K.; Sugitate, T.; Torii, H.] Hiroshima Univ, Hiroshima, Japan. [Newby, J.; Soltz, R.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Pestov, Y.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia. [Raniwala, R.; Raniwala, S.] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India. [Scharenberg, R. P.; Srivastava, B. K.] Purdue Univ, W Lafayette, IN 47907 USA. [Vernet, R.] Ctr Calcul IN2P3, Villeurbanne, France. [Yi, J.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea. [Bortolin, C.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy. [Fabjan, C. W.] Austrian Acad Sci, A-1010 Vienna, Austria. [Fabjan, C. W.] Vienna Univ Technol, A-1040 Vienna, Austria. RP Miskowiec, D (reprint author), CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. EM D.Miskowiec@gsi.de RI Bielcikova, Jana/G-9342-2014; Adamova, Dagmar/G-9789-2014; Blau, Dmitry/H-4523-2012; Yang, Hongyan/J-9826-2014; Vacchi, Andrea/C-1291-2010; Bearden, Ian/M-4504-2014; Sumbera, Michal/O-7497-2014; Kharlov, Yuri/D-2700-2015; Usai, Gianluca/E-9604-2015; Salgado, Carlos A./G-2168-2015; Bruna, Elena/C-4939-2014; HAMAGAKI, HIDEKI/G-4899-2014; Pshenichnov, Igor/A-4063-2008; Altsybeev, Igor/K-6687-2013; Vechernin, Vladimir/J-5832-2013; De Pasquale, Salvatore/B-9165-2008; de Cuveland, Jan/H-6454-2016; Kurepin, Alexey/H-4852-2013; Akindinov, Alexander/J-2674-2016; Nattrass, Christine/J-6752-2016; Suaide, Alexandre/L-6239-2016; van der Kolk, Naomi/M-9423-2016; Deppman, Airton/J-5787-2014; Traczyk, Tomasz/C-1310-2013; Ramello, Luciano/F-9357-2013; Castillo Castellanos, Javier/G-8915-2013; Voloshin, Sergei/I-4122-2013; Zarochentsev, Andrey/J-6253-2013; Kondratiev, Valery/J-8574-2013; Barnafoldi, Gergely Gabor/L-3486-2013; Levai, Peter/A-1544-2014; Guber, Fedor/I-4271-2013; Martinez Davalos, Arnulfo/F-3498-2013; Wagner, Vladimir/G-5650-2014; Mischke, Andre/D-3614-2011; Takahashi, Jun/B-2946-2012; Christensen, Christian Holm/A-4901-2010; Haiduc, Maria /C-5003-2011; Oh, Sun Kun/D-6993-2011; Gaardhoje, Jens-Jorgen/F-9008-2011; Mitu, Ciprian/E-6733-2011; Felea, Daniel/C-1885-2012; Sevcenco, Adrian/C-1832-2012; Chinellato, David/D-3092-2012; Barbera, Roberto/G-5805-2012; Barnby, Lee/G-2135-2010; Coccetti, Fabrizio/H-4004-2011; Cortese, Pietro/G-6754-2012; SCAPPARONE, EUGENIO/H-1805-2012; Masera, Massimo/J-4313-2012; Bagnasco, Stefano/J-4324-2012; Gagliardi, Martino/J-4787-2012; Aglieri Rinella, Gianluca/I-8010-2012; beole', stefania/G-9353-2012; Yoo, In-Kwon/J-6222-2012; Turrisi, Rosario/H-4933-2012; Bregant, Marco/I-7663-2012; Christensen, Christian/D-6461-2012; Peitzmann, Thomas/K-2206-2012; feofilov, grigory/A-2549-2013; Inst. of Physics, Gleb Wataghin/A-9780-2017; Armesto, Nestor/C-4341-2017; Martinez Hernandez, Mario Ivan/F-4083-2010; Ferretti, Alessandro/F-4856-2013; Vickovic, Linda/F-3517-2017; Fernandez Tellez, Arturo/E-9700-2017; Vinogradov, Leonid/K-3047-2013; OI Vacchi, Andrea/0000-0003-3855-5856; Bearden, Ian/0000-0003-2784-3094; Sumbera, Michal/0000-0002-0639-7323; Usai, Gianluca/0000-0002-8659-8378; Salgado, Carlos A./0000-0003-4586-2758; Bruna, Elena/0000-0001-5427-1461; Pshenichnov, Igor/0000-0003-1752-4524; Altsybeev, Igor/0000-0002-8079-7026; Vechernin, Vladimir/0000-0003-1458-8055; De Pasquale, Salvatore/0000-0001-9236-0748; de Cuveland, Jan/0000-0003-0455-1398; Kurepin, Alexey/0000-0002-1851-4136; Akindinov, Alexander/0000-0002-7388-3022; Nattrass, Christine/0000-0002-8768-6468; Suaide, Alexandre/0000-0003-2847-6556; van der Kolk, Naomi/0000-0002-8670-0408; Deppman, Airton/0000-0001-9179-6363; Traczyk, Tomasz/0000-0002-6602-4094; Castillo Castellanos, Javier/0000-0002-5187-2779; Zarochentsev, Andrey/0000-0002-3502-8084; Kondratiev, Valery/0000-0002-0031-0741; Guber, Fedor/0000-0001-8790-3218; Martinez Davalos, Arnulfo/0000-0002-9481-9548; Takahashi, Jun/0000-0002-4091-1779; Christensen, Christian Holm/0000-0002-1850-0121; Gaardhoje, Jens-Jorgen/0000-0001-6122-4698; Felea, Daniel/0000-0002-3734-9439; Sevcenco, Adrian/0000-0002-4151-1056; Chinellato, David/0000-0002-9982-9577; Barbera, Roberto/0000-0001-5971-6415; Barnby, Lee/0000-0001-7357-9904; Aglieri Rinella, Gianluca/0000-0002-9611-3696; Christensen, Christian/0000-0002-1850-0121; Peitzmann, Thomas/0000-0002-7116-899X; feofilov, grigory/0000-0003-3700-8623; Armesto, Nestor/0000-0003-0940-0783; Martinez Hernandez, Mario Ivan/0000-0002-8503-3009; Ferretti, Alessandro/0000-0001-9084-5784; Vickovic, Linda/0000-0002-9820-7960; Fernandez Tellez, Arturo/0000-0003-0152-4220; Coccetti, Fabrizio/0000-0001-7041-3394; Vinogradov, Leonid/0000-0001-9247-6230; Mohanty, Bedangadas/0000-0001-9610-2914; Gago Medina, Alberto Martin/0000-0002-0019-9692; Dainese, Andrea/0000-0002-2166-1874; Paticchio, Vincenzo/0000-0002-2916-1671; Monteno, Marco/0000-0002-3521-6333; Bhasin, Anju/0000-0002-3687-8179; SANTORO, ROMUALDO/0000-0002-4360-4600; Scarlassara, Fernando/0000-0002-4663-8216; Turrisi, Rosario/0000-0002-5272-337X; D'Erasmo, Ginevra/0000-0003-3407-6962; Tosello, Flavio/0000-0003-4602-1985; Beole', Stefania/0000-0003-4673-8038 FU Calouste Gulbenkian Foundation from Lisbon; Swiss Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq); Financiadora de Estudos e Projetos (FINEP); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); National Natural Science Foundation of China (NSFC); Chinese Ministry of Education (CMOE); Ministry of Science and Technology of China (MSTC); Ministry of Education and Youth of the Czech Republic; Danish Natural Science Research Council; Carlsberg Foundation; Danish National Research Foundation; European Research Council under the European Community; Helsinki Institute of Physics; Academy of Finland; French CNRS-IN2P3; Region Pays de Loire; Region Alsace; Region Auvergne; CEA, France; German BMBF; Helmholtz Association; ExtreMe Matter Institute EMMI, Germany; Greek Ministry of Research and Technology; Hungarian OTKA; National Office for Research and Technology (NKTH); Department of Atomic Energy; Department of Science and Technology of the Government of India; Istituto Nazionale di Fisica Nucleare (INFN) of Italy; MEXT, Japan; Joint Institute for Nuclear Research, Dubna; National Research Foundation of Korea (NRF); CONACYT; DGAPA, Mexico; ALFA-EC; HELEN (High-Energy physics Latin-American-European Network); Stichting voor Fundamenteel Onderzoek der Materie (FOM); Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council of Norway (NFR); Polish Ministry of Science and Higher Education; National Authority for Scientific Research - NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS); Federal Agency of Science of the Ministry of Education and Science of Russian Federation; International Science and Technology Center, Russian Academy of Sciences; Russian Federal Agency of Atomic Energy; Russian Federal Agency for Science and Innovations; CERN-INTAS; Ministry of Education of Slovakia; CIEMAT; EELA; Ministerio de Educacion y Ciencia of Spain; Xunta de Galicia (Conselleria de Educacion); CEADEN; Cubaenergia, Cuba; IAEA (International Atomic Energy Agency); Ministry of Science and Technology; National Research Foundation (NRF), South Africa; Swedish Research Council (VR); Knut & Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science; United Kingdom Science and Technology Facilities Council (STFC); United States Department of Energy; United States National Science Foundation; State of Texas; State of Ohio FX The ALICE Collaboration would like to thank all its engineers and technicians for their invaluable contributions to the construction of the experiment and the CERN accelerator teams for the outstanding performance of the LHC complex. The ALICE Collaboration acknowledges the following funding agencies for their support in building and running the ALICE detector: Calouste Gulbenkian Foundation from Lisbon and Swiss Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); National Natural Science Foundation of China (NSFC), the Chinese Ministry of Education (CMOE) and the Ministry of Science and Technology of China (MSTC); Ministry of Education and Youth of the Czech Republic; Danish Natural Science Research Council, the Carlsberg Foundation and the Danish National Research Foundation; The European Research Council under the European Community's Seventh Framework Programme; Helsinki Institute of Physics and the Academy of Finland; French CNRS-IN2P3, the 'Region Pays de Loire', 'Region Alsace', 'Region Auvergne' and CEA, France; German BMBF and the Helmholtz Association; ExtreMe Matter Institute EMMI, Germany; Greek Ministry of Research and Technology; Hungarian OTKA and National Office for Research and Technology (NKTH); Department of Atomic Energy and Department of Science and Technology of the Government of India; Istituto Nazionale di Fisica Nucleare (INFN) of Italy; MEXT Grant-in-Aid for Specially Promoted Research, Japan; Joint Institute for Nuclear Research, Dubna; National Research Foundation of Korea (NRF); CONACYT, DGAPA, Mexico, ALFA-EC and the HELEN Program (High-Energy physics Latin-American-European Network); Stichting voor Fundamenteel Onderzoek der Materie (FOM) and the Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands; Research Council of Norway (NFR); Polish Ministry of Science and Higher Education; National Authority for Scientific Research - NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS); Federal Agency of Science of the Ministry of Education and Science of Russian Federation, International Science and Technology Center, Russian Academy of Sciences, Russian Federal Agency of Atomic Energy, Russian Federal Agency for Science and Innovations and CERN-INTAS; Ministry of Education of Slovakia; CIEMAT, EELA, Ministerio de Educacion y Ciencia of Spain, Xunta de Galicia (Conselleria de Educacion), CEADEN, Cubaenergia, Cuba, and IAEA (International Atomic Energy Agency); The Ministry of Science and Technology and the National Research Foundation (NRF), South Africa; Swedish Research Council (VR) and Knut & Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science; United Kingdom Science and Technology Facilities Council (STFC); The United States Department of Energy, the United States National Science Foundation, the State of Texas, and the State of Ohio. NR 52 TC 146 Z9 147 U1 4 U2 67 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD FEB 7 PY 2011 VL 696 IS 4 BP 328 EP 337 DI 10.1016/j.physletb.2010.12.053 PG 10 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 717NU UT WOS:000287055500004 ER PT J AU Qian, X Chen, W Gao, H Hicks, K Kramer, K Laget, JM Mibe, T Qiang, Y Stepanyan, S Tedeschi, DJ Xu, W Adhikari, KP Amaryan, M Anghinolfi, M Ball, J Battaglieri, M Batourine, V Bedlinskiy, I Bellis, M Biselli, AS Bookwalter, C Branford, D Briscoe, WJ Brooks, WK Burkert, VD Careccia, SL Carman, DS Cole, PL Collins, P Crede, V D'Angelo, A Daniel, A Dashyan, N De Vita, R De Sanctis, E Deur, A Dey, B Dhamija, S Djalali, C Doughty, D Dupre, R Egiyan, H El Alaoui, A Eugenio, P Fegan, S Gabrielyan, MY Gevorgyan, N Gilfoyle, GP Giovanetti, KL Girod, FX Goetz, JT Gohn, W Gothe, RW Graham, L Griffioen, KA Guidal, M Guo, L Hafidi, K Hakobyan, H Hanretty, C Hassall, N Holtrop, M Ilieva, Y Ireland, DG Jawalkar, SS Jo, HS Joo, K Keller, D Khandaker, M Khetarpal, P Kim, A Kim, W Klein, A Klein, FJ Konczykowski, P Kubarovsky, V Kuleshov, SV Kuznetsov, V Livingston, K Martinez, D Mayer, M McAndrew, J McCracken, ME McKinnon, B Meyer, CA Mikhailov, K Mineeva, T Mirazita, M Mokeev, V Moreno, B Moriya, K Morrison, B Moutarde, H Munevar, E Nadel-Turonski, P Ni, A Niccolai, S Niculescu, I Niroula, MR Osipenko, M Ostrovidov, AI Paremuzyan, R Park, K Park, S Pereira, SA Pisano, S Pogorelko, O Pozdniakov, S Price, JW Procureu, S Protopopescu, D Ricco, G Ripani, M Ritchie, BG Rosner, G Rossi, P Sabatie, F Saini, MS Salgado, C Schott, D Schumacher, RA Seder, E Seraydaryan, H Sharabian, YG Smith, ES Smith, GD Sober, DI Sokhan, D Stepanyan, SS Stoler, P Strakovsky, II Strauch, S Taiuti, M Taylor, CE Tkachenko, S Ungaro, M Vernarsky, B Vineyard, MF Voutier, E Weinstein, LB Weygand, DP Wood, MH Zachariou, N Zana, L Zhang, J Zhao, B Zhao, ZW AF Qian, X. Chen, W. Gao, H. Hicks, K. Kramer, K. Laget, J. M. Mibe, T. Qiang, Y. Stepanyan, S. Tedeschi, D. J. Xu, W. Adhikari, K. P. Amaryan, M. Anghinolfi, M. Ball, J. Battaglieri, M. Batourine, V. Bedlinskiy, I. Bellis, M. Biselli, A. S. Bookwalter, C. Branford, D. Briscoe, W. J. Brooks, W. K. Burkert, V. D. Careccia, S. L. Carman, D. S. Cole, P. L. Collins, P. Crede, V. D'Angelo, A. Daniel, A. Dashyan, N. De Vita, R. De Sanctis, E. Deur, A. Dey, B. Dhamija, S. Djalali, C. Doughty, D. Dupre, R. Egiyan, H. El Alaoui, A. Eugenio, P. Fegan, S. Gabrielyan, M. Y. Gevorgyan, N. Gilfoyle, G. P. Giovanetti, K. L. Girod, F. X. Goetz, J. T. Gohn, W. Gothe, R. W. Graham, L. Griffioen, K. A. Guidal, M. Guo, L. Hafidi, K. Hakobyan, H. Hanretty, C. Hassall, N. Holtrop, M. Ilieva, Y. Ireland, D. G. Jawalkar, S. S. Jo, H. S. Joo, K. Keller, D. Khandaker, M. Khetarpal, P. Kim, A. Kim, W. Klein, A. Klein, F. J. Konczykowski, P. Kubarovsky, V. Kuleshov, S. V. Kuznetsov, V. Livingston, K. Martinez, D. Mayer, M. McAndrew, J. McCracken, M. E. McKinnon, B. Meyer, C. A. Mikhailov, K. Mineeva, T. Mirazita, M. Mokeev, V. Moreno, B. Moriya, K. Morrison, B. Moutarde, H. Munevar, E. Nadel-Turonski, P. Ni, A. Niccolai, S. Niculescu, I. Niroula, M. R. Osipenko, M. Ostrovidov, A. I. Paremuzyan, R. Park, K. Park, S. Pereira, S. Anefalos Pisano, S. Pogorelko, O. Pozdniakov, S. Price, J. W. Procureu, S. Protopopescu, D. Ricco, G. Ripani, M. Ritchie, B. G. Rosner, G. Rossi, P. Sabatie, F. Saini, M. S. Salgado, C. Schott, D. Schumacher, R. A. Seder, E. Seraydaryan, H. Sharabian, Y. G. Smith, E. S. Smith, G. D. Sober, D. I. Sokhan, D. Stepanyan, S. S. Stoler, P. Strakovsky, I. I. Strauch, S. Taiuti, M. Taylor, C. E. Tkachenko, S. Ungaro, M. Vernarsky, B. Vineyard, M. F. Voutier, E. Weinstein, L. B. Weygand, D. P. Wood, M. H. Zachariou, N. Zana, L. Zhang, J. Zhao, B. Zhao, Z. W. CA CLAS Collaboration TI Near-threshold photoproduction of phi mesons from deuterium SO PHYSICS LETTERS B LA English DT Article DE Near threshold; Deuteron; phi meson photoproduction; Quasi free ID NUCLEAR-BOUND QUARKONIUM AB We report the first, kinematically-complete measurement of the differential cross section of phi-meson photoproduction from deuterium near the production threshold for a proton using the CLAS detector and a tagged-photon beam in Hall B at Jefferson Lab. The measurement was carried out by a triple coincidence detection of a proton, K+ and K- near the theoretical production threshold of 1.57 GeV. The extracted differential cross sections d sigma/dt for the initial photon energy range of 1.65-1.75 GeV are consistent with predictions based on a quasifree mechanism. Our finding is different from recent LEPS results on phi-meson photoproduction from deuterium in a similar incident photon energy range, but in a different momentum transfer region. (C) 2011 Elsevier B.V. All rights reserved. C1 [Qian, X.] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA. [Qian, X.; Chen, W.; Gao, H.; Kramer, K.; Qiang, Y.; Bedlinskiy, I.] Duke Univ, Durham, NC 27708 USA. [Hicks, K.; Mibe, T.; Daniel, A.; Keller, D.] Ohio Univ, Athens, OH 45701 USA. [Laget, J. M.; Stepanyan, S.; Batourine, V.; Burkert, V. D.; Carman, D. S.; Deur, A.; Doughty, D.; Guo, L.; Kubarovsky, V.; Nadel-Turonski, P.; Sharabian, Y. G.; Smith, E. S.; Weygand, D. P.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Tedeschi, D. J.; Djalali, C.; Gothe, R. W.; Graham, L.; Ilieva, Y.; Park, K.; Strauch, S.; Tkachenko, S.; Wood, M. H.; Zhao, Z. W.] Univ S Carolina, Columbia, SC 29208 USA. [Xu, W.] MIT, Cambridge, MA 02139 USA. [Dupre, R.; El Alaoui, A.; Hafidi, K.] Argonne Natl Lab, Argonne, IL 60441 USA. [Collins, P.; Morrison, B.; Ritchie, B. G.] Arizona State Univ, Tempe, AZ 85287 USA. [Goetz, J. T.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Price, J. W.] Calif State Univ Dominguez Hills, Carson, CA 90747 USA. [Wood, M. H.] Canisius Coll, Buffalo, NY 14208 USA. [Bellis, M.; Dey, B.; McCracken, M. E.; Meyer, C. A.; Moriya, K.; Schumacher, R. A.; Vernarsky, B.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Klein, F. J.; Sober, D. I.] Catholic Univ Amer, Washington, DC 20064 USA. [Ball, J.; Girod, F. X.; Konczykowski, P.; Moreno, B.; Moutarde, H.; Procureu, S.; Sabatie, F.] CEA, Ctr Saclay, Irfu Serv Phys Nucl, F-91191 Gif Sur Yvette, France. [Doughty, D.] Christopher Newport Univ, Newport News, VA 23606 USA. [Gohn, W.; Joo, K.; Mineeva, T.; Seder, E.; Ungaro, M.; Zhao, B.] Univ Connecticut, Storrs, CT 06269 USA. [Branford, D.; McAndrew, J.] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland. [Biselli, A. S.] Fairfield Univ, Fairfield, CT 06824 USA. [Dhamija, S.; Gabrielyan, M. Y.; Khetarpal, P.; Schott, D.] Florida Int Univ, Miami, FL 33199 USA. [Bookwalter, C.; Crede, V.; Eugenio, P.; Hanretty, C.; Ostrovidov, A. I.; Park, S.; Saini, M. S.] Florida State Univ, Tallahassee, FL 32306 USA. [Briscoe, W. J.; Ilieva, Y.; Munevar, E.; Strakovsky, I. I.; Strauch, S.; Zachariou, N.] George Washington Univ, Washington, DC 20052 USA. [Cole, P. L.; Martinez, D.; Taylor, C. E.] Idaho State Univ, Pocatello, ID 83209 USA. [De Sanctis, E.; Mirazita, M.; Pereira, S. Anefalos; Rossi, P.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy. [Anghinolfi, M.; Battaglieri, M.; De Vita, R.; Osipenko, M.; Ricco, G.; Ripani, M.; Taiuti, M.] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy. [D'Angelo, A.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy. [Guidal, M.; Jo, H. S.; Niccolai, S.; Pisano, S.; Sokhan, D.] Inst Phys Nucl ORSAY, Orsay, France. [Kuleshov, S. V.; Mikhailov, K.; Pogorelko, O.; Pozdniakov, S.] Moscow Theoret & Expt Phys Inst, Moscow 117259, Russia. [Giovanetti, K. L.; Niculescu, I.] James Madison Univ, Harrisonburg, VA 22807 USA. [Kim, A.; Kim, W.; Kuznetsov, V.; Ni, A.; Park, K.; Stepanyan, S. S.] Kyungpook Natl Univ, Taegu 702701, South Korea. [Voutier, E.] Univ Grenoble 1, CNRS, LPSC, IN2P3, Grenoble, France. [Egiyan, H.; Holtrop, M.; Zana, L.] Univ New Hampshire, Durham, NH 03824 USA. [Khandaker, M.; Salgado, C.] Norfolk State Univ, Norfolk, VA 23504 USA. [Adhikari, K. P.; Amaryan, M.; Careccia, S. L.; Klein, A.; Mayer, M.; Niroula, M. R.; Seraydaryan, H.; Weinstein, L. B.; Zhang, J.] Old Dominion Univ, Norfolk, VA 23529 USA. [Stoler, P.; Ungaro, M.] Rensselaer Polytech Inst, Troy, NY 12180 USA. [Gilfoyle, G. P.] Univ Richmond, Richmond, VA 23173 USA. [D'Angelo, A.] Univ Roma Tor Vergata, I-00133 Rome, Italy. [Mokeev, V.] Skobeltsyn Nucl Phys Inst, Moscow 119899, Russia. [Vineyard, M. F.] Union Coll, Schenectady, NY 12308 USA. [Brooks, W. K.; Hakobyan, H.; Joo, K.; Kuleshov, S. V.] Univ Tecn Federico Santa Maria, Valparaiso, Chile. [Fegan, S.; Hassall, N.; Ireland, D. G.; Livingston, K.; McKinnon, B.; Protopopescu, D.; Rosner, G.; Smith, G. D.] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland. [Griffioen, K. A.; Jawalkar, S. S.] Coll William & Mary, Williamsburg, VA 23187 USA. [Dashyan, N.; Gevorgyan, N.; Hakobyan, H.; Paremuzyan, R.] Yerevan Phys Inst, Yerevan 375036, Armenia. RP Qian, X (reprint author), CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA. EM xqian@caltech.edu RI Zhang, Jixie/A-1461-2016; Protopopescu, Dan/D-5645-2012; Zana, Lorenzo/H-3032-2012; Zhao, Bo/J-6819-2012; Brooks, William/C-8636-2013; Kuleshov, Sergey/D-9940-2013; Schumacher, Reinhard/K-6455-2013; D'Angelo, Annalisa/A-2439-2012; Meyer, Curtis/L-3488-2014; El Alaoui, Ahmed/B-4638-2015; Sabatie, Franck/K-9066-2015; Osipenko, Mikhail/N-8292-2015; Ireland, David/E-8618-2010; Gao, Haiyan/G-2589-2011 OI Qian, Xin/0000-0002-7903-7935; Bellis, Matthew/0000-0002-6353-6043; Zhao, Bo/0000-0003-3171-5335; Brooks, William/0000-0001-6161-3570; Kuleshov, Sergey/0000-0002-3065-326X; Schumacher, Reinhard/0000-0002-3860-1827; D'Angelo, Annalisa/0000-0003-3050-4907; Meyer, Curtis/0000-0001-7599-3973; Sabatie, Franck/0000-0001-7031-3975; Osipenko, Mikhail/0000-0001-9618-3013; Ireland, David/0000-0001-7713-7011; FU U.S. Department of Energy [DE-AC05-84ER40150]; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; French Centre National de la Recherche Scientique and Commissariat a l'Energie Atomique; National Research Foundation of Korea; UK Science and Technology Facilities Council (STFC) FX We thank helpful comments from W.C. Chang, E. Oset and Q.J. Ye. We acknowledge the outstanding efforts of the staff of the Accelerator and the Physics Divisions at Jefferson Lab who made this experiment possible. This work was supported in part by the U.S. Department of Energy, the National Science Foundation, the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientique and Commissariat a l'Energie Atomique, and the National Research Foundation of Korea, and the UK Science and Technology Facilities Council (STFC). The Southeastern Universities Research Association (SURA) operated the Thomas Jefferson National Accelerator Facility for the United States Department of Energy under contract DE-AC05-84ER40150 during this work. NR 26 TC 5 Z9 5 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD FEB 7 PY 2011 VL 696 IS 4 BP 338 EP 342 DI 10.1016/j.physletb.2010.12.065 PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 717NU UT WOS:000287055500005 ER PT J AU Bauer, CW Dunn, ND AF Bauer, Christian W. Dunn, Nicholas Daniel TI Comment on new physics contributions to Gamma(S)(12) SO PHYSICS LETTERS B LA English DT Article DE Meson mixing ID LIFETIME DIFFERENCE; BEAUTY HADRONS; DECAYS; QCD AB A recent measurement by the D0 Collaboration finds a like-sign di-muon charge asymmetry in the B system that is roughly 3 sigma larger than the value predicated by the Standard Model. This suggests new physics contributing to B - (B) over bar mixing. For the current central value of the CP asymmetry, the required size of Gamma(S)(12) is larger than the Standard Model estimate. In this Letter, we will explore the constraints on new physics contributions to Gamma(S)(12). We find that all but two dimension six operators of Standard Model fields are excluded from contributing an O(1) amount to Gamma(S)(12) due to bounds from B decays. We argue that a more precise measurement of tau(B-s)/tau(B-d), which is possible with currently available data, could either support or strongly constrain the existence of new physics in Gamma(S)(12). (C) 2011 Elsevier B.V. All rights reserved. C1 [Bauer, Christian W.; Dunn, Nicholas Daniel] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Bauer, CW (reprint author), Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM cwbauer@lbl.gov FU Office of Science, Offices of High Energy and Nuclear Physics of the U.S. Department of Energy [DE-AC02-05CH11231]; Aspen Center for Physics FX This work was supported by the Director, Office of Science, Offices of High Energy and Nuclear Physics of the U.S. Department of Energy under the Contracts DE-AC02-05CH11231. We would like to thanks Asimina Arvanitaki, Clifford Cheung and Piyush Kumar for collaboration at early stages of this work, and Zoltan Ligeti for many stimulating discussions. C.W.B. would like to acknowledge support from the Aspen Center for Physics, where much of this work was performed. NR 27 TC 31 Z9 31 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD FEB 7 PY 2011 VL 696 IS 4 BP 362 EP 366 DI 10.1016/j.physletb.2010.12.039 PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 717NU UT WOS:000287055500010 ER PT J AU Aaron, JS Greene, AC Kotula, PG Bachand, GD Timlin, JA AF Aaron, Jesse S. Greene, Adrienne C. Kotula, Paul G. Bachand, George D. Timlin, Jerilyn A. TI Advanced Optical Imaging Reveals the Dependence of Particle Geometry on Interactions Between CdSe Quantum Dots and Immune Cells SO SMALL LA English DT Article ID MULTIVARIATE CURVE RESOLUTION; IN-VIVO; CARBON NANOTUBES; DRUG-DELIVERY; NANOPARTICLES; CYTOTOXICITY; NANOCRYSTALS; TOXICITY; BIOLOGY; TECHNOLOGY AB The biocompatibility and possible toxicological consequences of engineered nanomaterials, including quantum dots (QDs) due to their unique suitability for biomedical applications, remain intense areas of interest. We utilized advanced imaging approaches to characterize the interactions of CdSe QDs of various sizes and shapes with live immune cells. Particle diffusion and partitioning within the plasma membrane, cellular uptake kinetics, and sorting of particles into lysosomes were all independantly characterized. Using high-speed total internal reflectance fluorescence (TIRF) microscopy, we show that QDs with an average aspect ratio of 2.0 (i.e., rod-shaped) diffuse nearly an order of magnitude slower in the plasma membrane than more spherical particles with aspect ratios of 1.2 and 1.6, respectively. Moreover, more rod-shaped QDs were shown to be internalized into the cell 2-3 fold more slowly. Hyperspectral confocal fluorescence microscopy demonstrates that QDs tend to partition within the cell membrane into regions containing a single particle type. Furthermore, data examining QD sorting mechanisms indicate that endocytosis and lysosomal sorting increases with particle size. Together, these observations suggest that both size and aspect ratio of a nanoparticle are important characteristics that significantly impact interactions with the plasma membrane, uptake into the cell, and localization within intracellular vesicles. Thus, rather than simply characterizing nanoparticle uptake into cells, we show that utilization of advanced imaging approaches permits a more nuanced and complete examination of the multiple aspects of cell-nanoparticle interactions that can ultimately aid understanding possible mechanisms of toxicity, resulting in safer nanomaterial designs. C1 [Aaron, Jesse S.; Greene, Adrienne C.; Kotula, Paul G.; Bachand, George D.; Timlin, Jerilyn A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Timlin, JA (reprint author), Sandia Natl Labs, POB 5800,MS 0895, Albuquerque, NM 87185 USA. EM jatimli@sandia.gov RI Kotula, Paul/A-7657-2011; OI Kotula, Paul/0000-0002-7521-2759; Bachand, George/0000-0002-3169-9980; Timlin, Jerilyn/0000-0003-2953-1721 FU Sandia National Laboratory; United States Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX We would like to thank Omar Garcia, Ryan Davis, and Howland Jones for assistance in acquiring hyperspectral confocal fluorescence microscopy data. This work was supported by Sandia National Laboratory Directed Research and Development (LDRD) funds. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 47 TC 21 Z9 21 U1 0 U2 39 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 1613-6810 J9 SMALL JI Small PD FEB 7 PY 2011 VL 7 IS 3 BP 334 EP 341 DI 10.1002/smll.201001619 PG 8 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 724WL UT WOS:000287607000009 PM 21294262 ER PT J AU Gleason, AE Marquardt, H Chen, B Speziale, S Wu, J Jeanloz, R AF Gleason, A. E. Marquardt, H. Chen, B. Speziale, S. Wu, J. Jeanloz, R. TI Anomalous sound velocities in polycrystalline MgO under non-hydrostatic compression SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID SINGLE-CRYSTAL ELASTICITY; BRILLOUIN-SCATTERING; SUBDUCTION ZONES; LOWER MANTLE; STRESS DROP; GPA; EARTHQUAKES; CERAMICS; STRENGTH; EQUATION AB Brillouin scattering from polycrystalline MgO (periclase) non-hydrostatically compressed to, and decompressed from, 60 GPa at room temperature documents shearand compressional-wave velocities similar to 20% lower than values measured under hydrostatic compression. Calculations reveal that wave velocities can be lowered due to the elastic effects of non-hydrostatic stresses, but by only a few percent. Neither these elastic effects nor preferred orientation can account for the reduction in the sound velocity. Citation: Gleason, A. E., H. Marquardt, B. Chen, S. Speziale, J. Wu, and R. Jeanloz (2011), Anomalous sound velocities in polycrystalline MgO under non-hydrostatic compression, Geophys. Res. Lett., 38, L03304, doi: 10.1029/2010GL045860. C1 [Gleason, A. E.; Chen, B.; Jeanloz, R.] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [Marquardt, H.; Speziale, S.] GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany. [Wu, J.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Gleason, AE (reprint author), Univ Calif Berkeley, Dept Earth & Planetary Sci, 307 McCone Hall, Berkeley, CA 94720 USA. EM aegleson@lbl.gov FU Carnegie/DOE Alliance Center for High Pressure Science and Technology; German Academic Exchange Service (DAAD); US National Science Foundation; Department of Energy FX A. Gleason was supported by the Carnegie/DOE Alliance Center for High Pressure Science and Technology, and H. Marquardt was supported by the German Academic Exchange Service (DAAD). Partial support also came from the US National Science Foundation and Department of Energy. We thank S. Clark, J. Yan, S. Raju and J. Knight (Lawrence-Berkeley National Laboratory) for technical collaboration, and are grateful for helpful discussions with B. Buffett, D. Dreger, G. Johnson, M. Manga and H.-R. Wenk (University of California, Berkeley), and R. O'Connell (Harvard University). NR 34 TC 5 Z9 5 U1 1 U2 6 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 FEB 5 PY 2011 VL 38 AR L03304 DI 10.1029/2010GL045860 PG 4 WC Geosciences, Multidisciplinary SC Geology GA 717JD UT WOS:000287038600001 ER PT J AU Masters, A Thomsen, MF Badman, SV Arridge, CS Young, DT Coates, AJ Dougherty, MK AF Masters, A. Thomsen, M. F. Badman, S. V. Arridge, C. S. Young, D. T. Coates, A. J. Dougherty, M. K. TI Supercorotating return flow from reconnection in Saturn's magnetotail SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID MAGNETIC-FIELD; SPECTROMETER AB Detecting plasma dynamics in Saturn's magnetosphere is essential for understanding energy flow through the system. It has been proposed that both the Dungey and Vasyliunas cycles operate at Saturn, and the competition between these cycles has been debated. We examine data taken by the Cassini spacecraft in Saturn's post-dawn magnetosphere, similar to 17.5 Saturn radii from the planet, and identify an example of return flow from magnetotail reconnection. The flow included water group ions and had elevated ion temperatures (of order 1 keV), consistent with Vasyliunas cycle return flow. The flow was also supercorotating (similar to 200 km s(-1), similar to 120% of corotation), which is highly atypical of Saturn's outer magnetosphere. Our results suggest that return flows are time-variable, and our results concerning Dungey cycle return flows are inconclusive. We propose that supercorotating flows in Saturn's dawn magnetosphere strongly influence the current system that is responsible for the planet's main auroral emission. Citation: Masters, A., M. F. Thomsen, S. V. Badman, C. S. Arridge, D. T. Young, A. J. Coates, and M. K. Dougherty (2011), Supercorotating return flow from reconnection in Saturn's magnetotail, Geophys. Res. Lett., 38, L03103, doi: 10.1029/2010GL046149. C1 [Masters, A.; Arridge, C. S.; Coates, A. J.] Univ Coll London, Mullard Space Sci Lab, Dept Space & Climate Phys, Dorking RH5 6NT, Surrey, England. [Masters, A.; Arridge, C. S.; Coates, A. J.] UCL Birkbeck, Ctr Planetary Sci, London, England. [Thomsen, M. F.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Badman, S. V.] JAXA Inst Space & Aeronaut Sci, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan. [Young, D. T.] SW Res Inst, Space Sci & Engn Div, San Antonio, TX 78228 USA. [Dougherty, M. K.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Space & Atmospher Phys Grp, London SW7 2AZ, England. RP Masters, A (reprint author), Univ Coll London, Mullard Space Sci Lab, Dept Space & Climate Phys, Holmbury St Mary, Dorking RH5 6NT, Surrey, England. EM am2@mssl.ucl.ac.uk RI Arridge, Christopher/A-2894-2009; Coates, Andrew/C-2396-2008 OI Arridge, Christopher/0000-0002-0431-6526; Coates, Andrew/0000-0002-6185-3125 FU UK STFC; STFC; U.S. Department of Energy; NASA; JPL [1356497] FX AM acknowledges useful discussions with A. P. Walsh, C. F. Forsyth, and N. Achilleos. We acknowledge the support of the CAPS and MAG data processing/distribution staff, and L. K. Gilbert and G. R. Lewis for Cassini ELS data processing. This work was supported by UK STFC through rolling grants to MSSL/UCL and Imperial College London, and an STFC Postdoctoral Fellowship awarded to CSA. Work at Los Alamos was conducted under the auspices of the U.S. Department of Energy, with support from NASA's Cassini program. DTY acknowledges support of JPL contract 1356497 with SwRI. NR 18 TC 13 Z9 13 U1 0 U2 2 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 FEB 5 PY 2011 VL 38 AR L03103 DI 10.1029/2010GL046149 PG 5 WC Geosciences, Multidisciplinary SC Geology GA 717JD UT WOS:000287038600005 ER PT J AU Miyabe, S Haxton, DJ Rescigno, TN McCurdy, CW AF Miyabe, S. Haxton, D. J. Rescigno, T. N. McCurdy, C. W. TI Role of nuclear dynamics in the asymmetric molecular-frame photoelectron angular distributions for C 1s photoejection from CO2 SO PHYSICAL REVIEW A LA English DT Article AB We report the results of semiclassical calculations of the asymmetric molecular-frame photoelectron angular distributions for C 1s ionization of CO2 measured with respect to the CO+ and O+ ions produced by subsequent Auger decay, and show how the decay event can be used to probe ultrafast molecular dynamics of the transient cation. The fixed-nuclei photoionization amplitudes were constructed using variationally obtained electron-molecular-ion scattering wave functions. The amplitudes are then used in a semiclassical manner to investigate their dependence on the nuclear dynamics of the cation. The method introduced here can be used to study other core-level ionization events. C1 [Miyabe, S.; Haxton, D. J.; Rescigno, T. N.; McCurdy, C. W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Chem Sci & Ultrafast Xray Sci Lab, Berkeley, CA 94720 USA. [Miyabe, S.] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA. [McCurdy, C. W.] Univ Calif Davis, Dept Chem & Appl Sci, Davis, CA 95616 USA. RP Miyabe, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Chem Sci & Ultrafast Xray Sci Lab, Berkeley, CA 94720 USA. FU US Department of Energy by the University of California Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; US DOE Office of Basic Energy Sciences, Division of Chemical Sciences; National Science Foundation [PHY-0604628] FX This work was performed under the auspices of the US Department of Energy by the University of California Lawrence Berkeley National Laboratory under Contract DE-AC02-05CH11231 and was supported by the US DOE Office of Basic Energy Sciences, Division of Chemical Sciences. C. W. M. acknowledges support from the National Science Foundation (Grant No. PHY-0604628). NR 6 TC 2 Z9 2 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9926 EI 2469-9934 J9 PHYS REV A JI Phys. Rev. A PD FEB 4 PY 2011 VL 83 IS 2 AR 023404 DI 10.1103/PhysRevA.83.023404 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA 716NQ UT WOS:000286981100004 ER PT J AU Marsh, RA Shapiro, MA Temkin, RJ Dolgashev, VA Laurent, LL Lewandowski, JR Yeremian, AD Tantawi, SG AF Marsh, Roark A. Shapiro, Michael A. Temkin, Richard J. Dolgashev, Valery A. Laurent, Lisa L. Lewandowski, James R. Yeremian, A. Dian Tantawi, Sami G. TI X-band photonic band-gap accelerator structure breakdown experiment SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID CAVITY; RESONATORS AB In order to understand the performance of photonic band-gap (PBG) structures under realistic high gradient, high power, high repetition rate operation, a PBG accelerator structure was designed and tested at X band (11.424 GHz). The structure consisted of a single test cell with matching cells before and after the structure. The design followed principles previously established in testing a series of conventional pillbox structures. The PBG structure was tested at an accelerating gradient of 65 MV/m yielding a breakdown rate of two breakdowns per hour at 60 Hz. An accelerating gradient above 110 MV/m was demonstrated at a higher breakdown rate. Significant pulsed heating occurred on the surface of the inner rods of the PBG structure, with a temperature rise of 85 K estimated when operating in 100 ns pulses at a gradient of 100 MV/m and a surface magnetic field of 890 kA/m. A temperature rise of up to 250 K was estimated for some shots. The iris surfaces, the location of peak electric field, surprisingly had no damage, but the inner rods, the location of the peak magnetic fields and a large temperature rise, had significant damage. Breakdown in accelerator structures is generally understood in terms of electric field effects. These PBG structure results highlight the unexpected role of magnetic fields in breakdown. The hypothesis is presented that the moderate level electric field on the inner rods, about 14 MV/m, is enhanced at small tips and projections caused by pulsed heating, leading to breakdown. Future PBG structures should be built to minimize pulsed surface heating and temperature rise. C1 [Marsh, Roark A.; Shapiro, Michael A.; Temkin, Richard J.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA. [Marsh, Roark A.] Lawrence Livermore Natl Lab, NIF & Photon Sci & Applicat, Livermore, CA 94550 USA. [Dolgashev, Valery A.; Laurent, Lisa L.; Lewandowski, James R.; Yeremian, A. Dian; Tantawi, Sami G.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. RP Marsh, RA (reprint author), MIT, Plasma Sci & Fus Ctr, 77 Massachusetts Ave, Cambridge, MA 02139 USA. EM marsh19@llnl.gov FU Department of Energy High Energy Physics [DE-FG02-91ER40648]; MEGa-Ray team at LLNL FX This work was supported by the Department of Energy High Energy Physics, under Contract No. DE-FG02-91ER40648. The authors gratefully acknowledge useful discussions with Brian Munroe, Evgenya Smirnova, and Jake Haimson. R. A. Marsh would especially like to thank the MEGa-Ray team at LLNL and Director George Miller for providing support to complete this paper. NR 34 TC 11 Z9 12 U1 1 U2 7 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB 4 PY 2011 VL 14 IS 2 AR 021301 DI 10.1103/PhysRevSTAB.14.021301 PG 11 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 716PI UT WOS:000286985500001 ER PT J AU Balitsky, I Chirilli, GA AF Balitsky, Ian Chirilli, Giovanni A. TI Photon impact factor in the next-to-leading order SO PHYSICAL REVIEW D LA English DT Article ID SMALL-X; EVOLUTION; QCD AB An analytic coordinate-space expression for the next-to-leading order photon impact factor for small-x deep inelastic scattering is calculated using the operator expansion in Wilson lines. C1 [Balitsky, Ian] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. [Balitsky, Ian] Jlab, Theory Grp, Newport News, VA 23606 USA. [Chirilli, Giovanni A.] Ecole Polytech, CNRS, Ctr Phys Thor, F-91128 Palaiseau, France. [Chirilli, Giovanni A.] Univ Paris 11, CNRS, LPT, F-91405 Orsay, France. RP Balitsky, I (reprint author), Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA. EM balitsky@jlab.org; chirilli@cpht.polytechnique.fr FU Jefferson Science Associates, LLC [DE-AC05-06OR23177]; [ANR-06-JCJC-0084] FX The authors are grateful to L. N. Lipatov for valuable discussions. This work was supported by Contract No. DE-AC05-06OR23177 under which the Jefferson Science Associates, LLC operate the Thomas Jefferson National Accelerator Facility. The work of G. A. C is supported by Grant No. ANR-06-JCJC-0084. NR 32 TC 41 Z9 41 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 4 PY 2011 VL 83 IS 3 AR 031502 DI 10.1103/PhysRevD.83.031502 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 716OJ UT WOS:000286983000001 ER PT J AU Najm, HN Debusschere, BJ Marzouk, YM Widmer, S Le Maitre, OP AF Najm, H. N. Debusschere, B. J. Marzouk, Y. M. Widmer, S. Le Maitre, O. P. TI Uncertainty quantification in chemical systems (vol 80, pg 789, 2009) SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING LA English DT Correction C1 [Najm, H. N.; Debusschere, B. J.; Marzouk, Y. M.; Widmer, S.] Sandia Natl Labs, Livermore, CA 94551 USA. [Le Maitre, O. P.] LIMSI CNRS, F-91403 Orsay, France. RP Najm, HN (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA. EM hnnajm@sandia.gov RI Le Maitre, Olivier/D-8570-2011 OI Le Maitre, Olivier/0000-0002-3811-7787 NR 2 TC 1 Z9 1 U1 0 U2 4 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND SN 0029-5981 J9 INT J NUMER METH ENG JI Int. J. Numer. Methods Eng. PD FEB 4 PY 2011 VL 85 IS 5 BP 670 EP 670 DI 10.1002/nme.2987 PG 1 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Engineering; Mathematics GA 713ZB UT WOS:000286775000008 ER PT J AU Nikiforov, MP Hohlbauch, S King, WP Voitchovsky, K Contera, SA Jesse, S Kalinin, SV Proksch, R AF Nikiforov, Maxim P. Hohlbauch, Sophia King, William P. Voitchovsky, Kislon Contera, Sonia Antoranz Jesse, Stephen Kalinin, Sergei V. Proksch, Roger TI Temperature-dependent phase transitions in zeptoliter volumes of a complex biological membrane SO NANOTECHNOLOGY LA English DT Article ID PURPLE MEMBRANE; HALOBACTERIUM-HALOBIUM; DNA ORIGAMI; PHOSPHATIDYLCHOLINE BILAYERS; TRANSMEMBRANE PEPTIDES; PATTERNED SURFACES; FORCE MICROSCOPY; LIPID-BILAYERS; BACTERIORHODOPSIN; DOMAINS AB Phase transitions in purple membrane have been a topic of debate for the past two decades. In this work we present studies of a reversible transition of purple membrane in the 50-60 degrees C range in zeptoliter volumes under different heating regimes (global heating and local heating). The temperature of the reversible phase transition is 52 +/- 5 degrees C for both local and global heating, supporting the hypothesis that this transition is mainly due to a structural rearrangement of bR molecules and trimers. To achieve high resolution measurements of temperature-dependent phase transitions, a new scanning probe microscopy-based method was developed. We believe that our new technique can be extended to other biological systems and can contribute to the understanding of inhomogeneous phase transitions in complex systems. C1 [Nikiforov, Maxim P.; Jesse, Stephen; Kalinin, Sergei V.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. [Hohlbauch, Sophia; Proksch, Roger] Asylum Res, Santa Barbara, CA 93117 USA. [King, William P.] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA. [Voitchovsky, Kislon] MIT, Cambridge, MA 02139 USA. [Contera, Sonia Antoranz] Univ Oxford, Dept Phys, Oxford OX1 3PU, England. RP Nikiforov, MP (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RI Nikiforov, Maxim/C-1965-2012; Kalinin, Sergei/I-9096-2012; Voitchovsky, Kislon/N-9885-2013; Antoranz Contera, Sonia/B-6543-2012; Jesse, Stephen/D-3975-2016 OI Kalinin, Sergei/0000-0001-5354-6152; Voitchovsky, Kislon/0000-0001-7760-4732; Antoranz Contera, Sonia/0000-0002-2371-1206; Jesse, Stephen/0000-0002-1168-8483 FU Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy FX A portion of this research at the Oak Ridge National Laboratory's Center for Nanophase Materials Sciences was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy. NR 46 TC 8 Z9 8 U1 0 U2 10 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0957-4484 J9 NANOTECHNOLOGY JI Nanotechnology PD FEB 4 PY 2011 VL 22 IS 5 AR 055709 DI 10.1088/0957-4484/22/5/055709 PG 7 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Science & Technology - Other Topics; Materials Science; Physics GA 698GI UT WOS:000285581600025 PM 21178256 ER PT J AU Tsai, AS Brasse, M Bergman, RG Ellman, JA AF Tsai, Andy S. Brasse, Mikael Bergman, Robert G. Ellman, Jonathan A. TI Rh(III)-Catalyzed Oxidative Coupling of Unactivated Alkenes via C-H Activation SO ORGANIC LETTERS LA English DT Article ID PD(II)-CATALYZED OLEFINATION; ROOM-TEMPERATURE; ARENES; FUNCTIONALIZATION; PALLADIUM(II); CYCLIZATION; INDOLES; ALKYNES; ALKENYLATION; ANNULATIONS AB Oxime directed aromatic C-H bond activation and oxidative coupling to alkenes is reported using a cationic Rh(III) catalyst. Significantly, the method can be used to oxidatively couple unactivated, aliphatic alkenes. C1 [Tsai, Andy S.; Ellman, Jonathan A.] Yale Univ, Dept Chem, New Haven, CT 06520 USA. [Brasse, Mikael] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Bergman, Robert G.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Bergman, RG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM rbergman@berkeley.edu; jonathan.ellman@yale.edu RI Ellman, Jonathan/C-7732-2013 FU NIH [GM069559]; Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division, U.S. Department of Energy [DE-AC02-05CH11231]; Eli Lilly Fellowship; European Community FX This work was supported by NIH Grant GM069559 (to J.A.E.) and by the Director, Office of Energy Research, Office of Basic Energy Sciences, Chemical Sciences Division, U.S. Department of Energy under Contract DE-AC02-05CH11231 (to R.G.B.). M.B. acknowledges the seventh European Community Framework Programme, for a Marie Curie International Outgoing Fellowship, that supported this research. A.S.T. is grateful for an Eli Lilly Fellowship. NR 35 TC 175 Z9 175 U1 2 U2 36 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1523-7060 J9 ORG LETT JI Org. Lett. PD FEB 4 PY 2011 VL 13 IS 3 BP 540 EP 542 DI 10.1021/ol102890k PG 3 WC Chemistry, Organic SC Chemistry GA 711HL UT WOS:000286577600049 PM 21175143 ER PT J AU Hong, T Gvasaliya, SN Herringer, S Turnbull, MM Landee, CP Regnault, LP Boehm, M Zheludev, A AF Hong, Tao Gvasaliya, S. N. Herringer, S. Turnbull, M. M. Landee, C. P. Regnault, L. -P. Boehm, M. Zheludev, A. TI Dynamics of the two-dimensional S=1/2 dimer system (C5H6N2F)(2)CuCl4 SO PHYSICAL REVIEW B LA English DT Article ID BOSE-EINSTEIN CONDENSATION; SINGLET-GROUND-STATE; SUPERCONDUCTIVITY; INSULATOR AB Inelastic neutron scattering was used to study a quantum S = 1/2 antiferromagnetic Heisenberg system-Bis(2-amino-5-fluoropyridinium) Tetrachlorocuprate(II). The magnetic excitation spectrum is shown to be dominated by long-lived excitations with an energy gap of Delta = 1.07(3) meV. The measured dispersion relation is consistent with a simple two-dimensional square lattice of weakly coupled spin dimers. Comparing the data to a random phase approximation treatment of this model gives the intradimer and interdimer exchange constants J = 1.45(2) meV and J' = 0.31(3) meV, respectively. C1 [Hong, Tao] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. [Herringer, S.; Turnbull, M. M.; Landee, C. P.] Clark Univ, Carlson Sch Chem, Worcester, MA 01610 USA. [Herringer, S.; Turnbull, M. M.; Landee, C. P.] Clark Univ, Dept Phys, Worcester, MA 01610 USA. [Regnault, L. -P.] CEA Grenoble, INAC SPSMS MDN, F-38054 Grenoble 9, France. [Boehm, M.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France. [Gvasaliya, S. N.; Zheludev, A.] Swiss Fed Inst Technol, Festkorperphys Lab, CH-8093 Zurich, Switzerland. [Gvasaliya, S. N.] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland. RP Hong, T (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA. RI Hong, Tao/F-8166-2010; OI Hong, Tao/0000-0002-0161-8588; Turnbull, Mark/0000-0002-0232-8224 NR 25 TC 7 Z9 7 U1 2 U2 4 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD FEB 4 PY 2011 VL 83 IS 5 AR 052401 DI 10.1103/PhysRevB.83.052401 PG 4 WC Physics, Condensed Matter SC Physics GA 716NU UT WOS:000286981500002 ER PT J AU Aggarwal, MM Ahammed, Z Alakhverdyants, AV Alekseev, I Alford, J Anderson, BD Anson, CD Arkhipkin, D Averichev, GS Balewski, J Beavis, DR Bellwied, R Betancourt, MJ Betts, RR Bhasin, A Bhati, AK Bichsel, H Bielcik, J Bielcikova, J Biritz, B Bland, LC Borowski, W Bouchet, J Braidot, E Brandin, AV Bridgeman, A Brovko, SG Bruna, E Bueltmann, S Bunzarov, I Burton, TP Cai, XZ Caines, H Sanchez, MCD Cebra, D Cendejas, R Cervantes, MC Chajecki, Z Chaloupka, P Chattopadhyay, S Chen, HF Chen, JH Chen, JY Cheng, J Cherney, M Chikanian, A Choi, KE Christie, W Chung, P Codrington, MJM Corliss, R Cramer, JG Crawford, HJ Dash, S Leyva, AD De Silva, LC Debbe, RR Dedovich, TG Derevschikov, AA de Souza, RD Didenko, L Djawotho, P Dogra, SM Dong, X Drachenberg, JL Draper, JE Dunlop, JC Mazumdar, MRD Efimov, LG Elnimr, M Engelage, J Eppley, G Estienne, M Eun, L Evdokimov, O Fatemi, R Fedorisin, J Fersch, RG Finch, E Fine, V Fisyak, Y Gagliardi, CA Gangadharan, DR Geromitsos, A Geurts, F Ghosh, P Gorbunov, YN Gordon, A Grebenyuk, O Grosnick, D Guertin, SM Gupta, A Guryn, W Haag, B Hajkova, O Hamed, A Han, LX Harris, JW Hays-Wehle, JP Heinz, M Heppelmann, S Hirsch, A Hjort, E Hoffmann, GW Hofman, DJ Huang, B Huang, HZ Humanic, TJ Huo, L Igo, G Jacobs, P Jacobs, WW Jena, C Jin, F Joseph, J Judd, EG Kabana, S Kang, K Kapitan, J Kauder, K Keane, D Kechechyan, A Kettler, D Kikola, DP Kiryluk, J Kisiel, A Kizka, V Klein, SR Knospe, AG Koetke, DD Kollegger, T Konzer, J Koralt, I Koroleva, L Korsch, W Kotchenda, L Kouchpil, V Kravtsov, P Krueger, K Krus, M Kumar, L Kurnadi, P Lamont, MAC Landgraf, JM LaPointe, S Lauret, J Lebedev, A Lednicky, R Lee, JH Leight, W LeVine, MJ Li, C Li, L Li, N Li, W Li, X Li, X Li, Y Li, ZM Lisa, MA Liu, F Liu, H Liu, J Ljubicic, T Llope, WJ Longacre, RS Love, WA Lu, Y Lukashov, EV Luo, X Ma, GL Ma, YG Mahapatra, DP Majka, R Mall, OI Mangotra, LK Manweiler, R Margetis, S Markert, C Masui, H Matis, HS Matulenko, YA McDonald, D McShane, TS Meschanin, A Milner, R Minaev, NG Mioduszewski, S Mischke, A Mitrovski, MK Mohanty, B Mondal, MM Morozov, B Morozov, DA Munhoz, MG Naglis, M Nandi, BK Nayak, TK Netrakanti, PK Ng, MJ Nogach, LV Nurushev, SB Odyniec, G Ogawa, A Oh, K Ohlson, A Okorokov, V Oldag, EW Olson, D Pachr, M Page, BS Pal, SK Pandit, Y Panebratsev, Y Pawlak, T Pei, H Peitzmann, T Perkins, C Peryt, W Phatak, SC Pile, P Planinic, M Ploskon, MA Pluta, J Plyku, D Poljak, N Poskanzer, AM Potukuchi, BVKS Powell, CB Prindle, D Pruneau, C Pruthi, NK Pujahari, PR Putschke, J Qiu, H Raniwala, R Raniwala, S Ray, RL Redwine, R Reed, R Ritter, HG Roberts, JB Rogachevskiy, OV Romero, JL Rose, A Ruan, L Rusnak, J Sakai, S Sakrejda, I Sakuma, T Salur, S Sandweiss, J Sangaline, E Schambach, J Scharenberg, RP Schmah, AM Schmitz, N Schuster, TR Seele, J Seger, J Selyuzhenkov, I Seyboth, P Shahaliev, E Shao, M Sharma, M Shi, SS Sichtermann, EP Simon, F Singaraju, RN Skoby, MJ Smirnov, N Sorensen, P Speltz, J Spinka, HM Srivastava, B Stanislaus, TDS Staszak, D Steadman, SG Stevens, JR Stock, R Strikhanov, M Stringfellow, B Suaide, AAP Suarez, MC Subba, NL Sumbera, M Sun, XM Sun, Y Sun, Z Surrow, B Svirida, DN Symons, TJM de Toledo, AS Takahashi, J Tang, AH Tang, Z Tarini, LH Tarnowsky, T Thein, D Thomas, JH Tian, J Timmins, AR Tlusty, D Tokarev, M Trainor, TA Tram, VN Trentalange, S Tribble, RE Tribedy, P Tsai, OD Ullrich, T Underwood, DG Van Buren, G van Nieuwenhuizen, G Vanfossen, JA Varma, R Vasconcelos, GMS Vasiliev, AN Videbaek, F Viyogi, YP Vokal, S Voloshin, SA Wada, M Walker, M Wang, F Wang, G Wang, H Wang, JS Wang, Q Wang, XL Wang, Y Webb, G Webb, JC Westfall, GD Whitten, C Wieman, H Wissink, SW Witt, R Witzke, W Wu, YF Xie, W Xu, H Xu, N Xu, QH Xu, W Xu, Y Xu, Z Xue, L Yang, Y Yepes, P Yip, K Yoo, IK Yue, Q Zawisza, M Zbroszczyk, H Zhan, W Zhang, JB Zhang, S Zhang, WM Zhang, XP Zhang, Y Zhang, ZP Zhao, J Zhong, C Zhou, W Zhu, X Zhu, YH Zoulkarneev, R Zoulkarneeva, Y AF Aggarwal, M. M. Ahammed, Z. Alakhverdyants, A. V. Alekseev, I. Alford, J. Anderson, B. D. Anson, C. D. Arkhipkin, D. Averichev, G. S. Balewski, J. Beavis, D. R. Bellwied, R. Betancourt, M. J. Betts, R. R. Bhasin, A. Bhati, A. K. Bichsel, H. Bielcik, J. Bielcikova, J. Biritz, B. Bland, L. C. Borowski, W. Bouchet, J. Braidot, E. Brandin, A. V. Bridgeman, A. Brovko, S. G. Bruna, E. Bueltmann, S. Bunzarov, I. Burton, T. P. Cai, X. Z. Caines, H. Sanchez, M. Calderon de la Barca Cebra, D. Cendejas, R. Cervantes, M. C. Chajecki, Z. Chaloupka, P. Chattopadhyay, S. Chen, H. F. Chen, J. H. Chen, J. Y. Cheng, J. Cherney, M. Chikanian, A. Choi, K. E. Christie, W. Chung, P. Codrington, M. J. M. Corliss, R. Cramer, J. G. Crawford, H. J. Dash, S. Leyva, A. Davila De Silva, L. C. Debbe, R. R. Dedovich, T. G. Derevschikov, A. A. Derradi de Souza, R. Didenko, L. Djawotho, P. Dogra, S. M. Dong, X. Drachenberg, J. L. Draper, J. E. Dunlop, J. C. Mazumdar, M. R. Dutta Efimov, L. G. Elnimr, M. Engelage, J. Eppley, G. Estienne, M. Eun, L. Evdokimov, O. Fatemi, R. Fedorisin, J. Fersch, R. G. Finch, E. Fine, V. Fisyak, Y. Gagliardi, C. A. Gangadharan, D. R. Geromitsos, A. Geurts, F. Ghosh, P. Gorbunov, Y. N. Gordon, A. Grebenyuk, O. Grosnick, D. Guertin, S. M. Gupta, A. Guryn, W. Haag, B. Hajkova, O. Hamed, A. Han, L-X. Harris, J. W. Hays-Wehle, J. P. Heinz, M. Heppelmann, S. Hirsch, A. Hjort, E. Hoffmann, G. W. Hofman, D. J. Huang, B. Huang, H. Z. Humanic, T. J. Huo, L. Igo, G. Jacobs, P. Jacobs, W. W. Jena, C. Jin, F. Joseph, J. Judd, E. G. Kabana, S. Kang, K. Kapitan, J. Kauder, K. Keane, D. Kechechyan, A. Kettler, D. Kikola, D. P. Kiryluk, J. Kisiel, A. Kizka, V. Klein, S. R. Knospe, A. G. Koetke, D. D. Kollegger, T. Konzer, J. Koralt, I. Koroleva, L. Korsch, W. Kotchenda, L. Kouchpil, V. Kravtsov, P. Krueger, K. Krus, M. Kumar, L. Kurnadi, P. Lamont, M. A. C. Landgraf, J. M. LaPointe, S. Lauret, J. Lebedev, A. Lednicky, R. Lee, J. H. Leight, W. LeVine, M. J. Li, C. Li, L. Li, N. Li, W. Li, X. Li, X. Li, Y. Li, Z. M. Lisa, M. A. Liu, F. Liu, H. Liu, J. Ljubicic, T. Llope, W. J. Longacre, R. S. Love, W. A. Lu, Y. Lukashov, E. V. Luo, X. Ma, G. L. Ma, Y. G. Mahapatra, D. P. Majka, R. Mall, O. I. Mangotra, L. K. Manweiler, R. Margetis, S. Markert, C. Masui, H. Matis, H. S. Matulenko, Yu. A. McDonald, D. McShane, T. S. Meschanin, A. Milner, R. Minaev, N. G. Mioduszewski, S. Mischke, A. Mitrovski, M. K. Mohanty, B. Mondal, M. M. Morozov, B. Morozov, D. A. Munhoz, M. G. Naglis, M. Nandi, B. K. Nayak, T. K. Netrakanti, P. K. Ng, M. J. Nogach, L. V. Nurushev, S. B. Odyniec, G. Ogawa, A. Oh, K. Ohlson, A. Okorokov, V. Oldag, E. W. Olson, D. Pachr, M. Page, B. S. Pal, S. K. Pandit, Y. Panebratsev, Y. Pawlak, T. Pei, H. Peitzmann, T. Perkins, C. Peryt, W. Phatak, S. C. Pile, P. Planinic, M. Ploskon, M. A. Pluta, J. Plyku, D. Poljak, N. Poskanzer, A. M. Potukuchi, B. V. K. S. Powell, C. B. Prindle, D. Pruneau, C. Pruthi, N. K. Pujahari, P. R. Putschke, J. Qiu, H. Raniwala, R. Raniwala, S. Ray, R. L. Redwine, R. Reed, R. Ritter, H. G. Roberts, J. B. Rogachevskiy, O. V. Romero, J. L. Rose, A. Ruan, L. Rusnak, J. Sakai, S. Sakrejda, I. Sakuma, T. Salur, S. Sandweiss, J. Sangaline, E. Schambach, J. Scharenberg, R. P. Schmah, A. M. Schmitz, N. Schuster, T. R. Seele, J. Seger, J. Selyuzhenkov, I. Seyboth, P. Shahaliev, E. Shao, M. Sharma, M. Shi, S. S. Sichtermann, E. P. Simon, F. Singaraju, R. N. Skoby, M. J. Smirnov, N. Sorensen, P. Speltz, J. Spinka, H. M. Srivastava, B. Stanislaus, T. D. S. Staszak, D. Steadman, S. G. Stevens, J. R. Stock, R. Strikhanov, M. Stringfellow, B. Suaide, A. A. P. Suarez, M. C. Subba, N. L. Sumbera, M. Sun, X. M. Sun, Y. Sun, Z. Surrow, B. Svirida, D. N. Symons, T. J. M. Szanto de Toledo, A. Takahashi, J. Tang, A. H. Tang, Z. Tarini, L. H. Tarnowsky, T. Thein, D. Thomas, J. H. Tian, J. Timmins, A. R. Tlusty, D. Tokarev, M. Trainor, T. A. Tram, V. N. Trentalange, S. Tribble, R. E. Tribedy, P. Tsai, O. D. Ullrich, T. Underwood, D. G. Van Buren, G. van Nieuwenhuizen, G. Vanfossen, J. A., Jr. Varma, R. Vasconcelos, G. M. S. Vasiliev, A. N. Videbaek, F. Viyogi, Y. P. Vokal, S. Voloshin, S. A. Wada, M. Walker, M. Wang, F. Wang, G. Wang, H. Wang, J. S. Wang, Q. Wang, X. L. Wang, Y. Webb, G. Webb, J. C. Westfall, G. D. Whitten, C., Jr. Wieman, H. Wissink, S. W. Witt, R. Witzke, W. Wu, Y. F. Xie, W. Xu, H. Xu, N. Xu, Q. H. Xu, W. Xu, Y. Xu, Z. Xue, L. Yang, Y. Yepes, P. Yip, K. Yoo, I-K. Yue, Q. Zawisza, M. Zbroszczyk, H. Zhan, W. Zhang, J. B. Zhang, S. Zhang, W. M. Zhang, X. P. Zhang, Y. Zhang, Z. P. Zhao, J. Zhong, C. Zhou, W. Zhu, X. Zhu, Y. H. Zoulkarneev, R. Zoulkarneeva, Y. CA STAR Collaboration TI Strange and multistrange particle production in Au plus Au collisions at root s(NN)=62.4 GeV SO PHYSICAL REVIEW C LA English DT Article ID ENERGY-DEPENDENCE; HADRON-PRODUCTION; AU+AU COLLISIONS; FREEZE-OUT; STAR; SPS AB We present results on strange and multistrange particle production in Au + Au collisions at root s(NN) = 62.4 GeV as measured with the STAR detector at RHIC. Midrapidity transverse momentum spectra and integrated yields of K-S(0), Lambda, Xi, and Omega and their antiparticles are presented for different centrality classes. The particle yields and ratios follow a smooth energy dependence. Chemical freeze-out parameters, temperature, baryon chemical potential, and strangeness saturation factor obtained from the particle yields are presented. Intermediate transverse momentum (p(T)) phenomena are discussed based on the ratio of the measured baryon-to-meson spectra and nuclear modification factor. The centrality dependence of various measurements presented show a similar behavior as seen in Au + Au collisions at root s(NN) = 200 GeV. C1 [Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.] Panjab Univ, Chandigarh 160014, India. [Bridgeman, A.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA. [Arkhipkin, D.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; Didenko, L.; Dunlop, J. C.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ogawa, A.; Pile, P.; Ruan, L.; Sorensen, P.; Tang, A. H.; Tlusty, D.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Crawford, H. J.; Engelage, J.; Judd, E. G.; Ng, M. J.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Brovko, S. G.; Sanchez, M. Calderon de la Barca; Cebra, D.; Draper, J. E.; Haag, B.; Liu, H.; Mall, O. I.; Reed, R.; Romero, J. L.; Salur, S.; Sangaline, E.] Univ Calif Davis, Davis, CA 95616 USA. [Biritz, B.; Cendejas, R.; Gangadharan, D. R.; Guertin, S. M.; Huang, H. Z.; Igo, G.; Kurnadi, P.; Staszak, D.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA. [Derradi de Souza, R.; Takahashi, J.; Timmins, A. R.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil. [Betts, R. R.; Evdokimov, O.; Hofman, D. J.; Kauder, K.; Pei, H.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA. [Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA. [Bielcik, J.; Hajkova, O.; Krus, M.; Pachr, M.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic. [Bielcikova, J.; Chaloupka, P.; Chung, P.; Kapitan, J.; Kouchpil, V.; Rusnak, J.; Sumbera, M.] Nucl Phys Inst AS CR, Rez 25068, Czech Republic. [Kollegger, T.; Mitrovski, M. K.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, Frankfurt, Germany. [Dash, S.; Jena, C.; Mahapatra, D. P.; Phatak, S. C.] Inst Phys, Bhubaneswar 751005, Orissa, India. [Nandi, B. K.; Pujahari, P. R.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India. [Jacobs, W. W.; Page, B. S.; Selyuzhenkov, I.; Stevens, J. R.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA. [Alekseev, I.; Koroleva, L.; Morozov, B.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow, Russia. [Bhasin, A.; Dogra, S. M.; Gupta, A.; Mangotra, L. K.; Potukuchi, B. V. K. S.] Univ Jammu, Jammu 180001, India. [Alakhverdyants, A. V.; Averichev, G. S.; Bunzarov, I.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Kechechyan, A.; Kizka, V.; Lednicky, R.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Vokal, S.; Zoulkarneev, R.; Zoulkarneeva, Y.] Joint Inst Nucl Res, Dubna 141980, Russia. [Alford, J.; Anderson, B. D.; Bouchet, J.; Joseph, J.; Keane, D.; Kumar, L.; Margetis, S.; Pandit, Y.; Subba, N. L.; Vanfossen, J. A., Jr.; Zhang, W. M.] Kent State Univ, Kent, OH 44242 USA. [Fatemi, R.; Fersch, R. G.; Korsch, W.; Webb, G.; Witzke, W.] Univ Kentucky, Lexington, KY 40506 USA. [Qiu, H.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.; Zhan, W.] Inst Modern Phys, Lanzhou, Peoples R China. [Ahammed, Z.; Dong, X.; Grebenyuk, O.; Hjort, E.; Jacobs, P.; Kikola, D. P.; Kiryluk, J.; Klein, S. R.; Masui, H.; Matis, H. S.; Naglis, M.; Odyniec, G.; Olson, D.; Ploskon, M. A.; Poskanzer, A. M.; Powell, C. B.; Ritter, H. G.; Rose, A.; Sakai, S.; Sakrejda, I.; Schmah, A. M.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Tribble, R. E.; Wieman, H.; Xu, N.; Zhang, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. [Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Leight, W.; Milner, R.; Redwine, R.; Sakuma, T.; Seele, J.; Steadman, S. G.; Surrow, B.; van Nieuwenhuizen, G.; Walker, M.] MIT, Cambridge, MA 02139 USA. [Schmitz, N.; Seyboth, P.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Tarnowsky, T.; Tram, V. N.; Wang, H.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA. [Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Lukashov, E. V.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia. [Braidot, E.; Mischke, A.; Peitzmann, T.] NIKHEF, Amsterdam, Netherlands. [Braidot, E.; Mischke, A.; Peitzmann, T.] Univ Utrecht, Amsterdam, Netherlands. [Anson, C. D.; Chajecki, Z.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA. [Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA. [Eun, L.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA. [Derevschikov, A. A.; Matulenko, Yu. A.; Meschanin, A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia. [Hirsch, A.; Konzer, J.; Li, X.; Netrakanti, P. K.; Scharenberg, R. P.; Skoby, M. J.; Srivastava, B.; Stringfellow, B.; Wang, F.; Wang, Q.; Xie, W.] Purdue Univ, W Lafayette, IN 47907 USA. [Choi, K. E.; Oh, K.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea. [Raniwala, R.; Raniwala, S.] Univ Rajasthan, Jaipur 302004, Rajasthan, India. [Eppley, G.; Geurts, F.; Liu, J.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Yepes, P.] Rice Univ, Houston, TX 77251 USA. [Munhoz, M. G.; Suaide, A. A. P.; Szanto de Toledo, A.; Tian, J.] Univ Sao Paulo, Sao Paulo, Brazil. [Chen, H. F.; Huang, B.; Li, C.; Lu, Y.; Luo, X.; Shao, M.; Sun, Y.; Tang, Z.; Tokarev, M.; Wang, X. L.; Xu, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China. [Li, X.; Xu, Q. H.; Zhou, W.] Shandong Univ, Jinan 250100, Shandong, Peoples R China. [Cai, X. Z.; Chen, J. H.; Han, L-X.; Jin, F.; Li, W.; Ma, G. L.; Ma, Y. G.; Xue, L.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China. [Borowski, W.; Estienne, M.; Geromitsos, A.; Kabana, S.; Speltz, J.] SUBATECH, Nantes, France. [Cervantes, M. C.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.] Texas A&M Univ, College Stn, TX 77843 USA. [Leyva, A. Davila; Hoffmann, G. W.; Li, L.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Thein, D.; Trentalange, S.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA. [Cheng, J.; Kang, K.; Li, Y.; Wang, Y.; Yue, Q.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China. [Witt, R.] USN Acad, Annapolis, MD 21402 USA. [Grosnick, D.; Koetke, D. D.; Manweiler, R.; Stanislaus, T. D. S.] Valparaiso Univ, Valparaiso, IN 46383 USA. [Chattopadhyay, S.; Mazumdar, M. R. Dutta; Ghosh, P.; Mohanty, B.; Mondal, M. M.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.; Tribedy, P.; Viyogi, Y. P.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, India. [Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland. [Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.] Univ Washington, Seattle, WA 98195 USA. [Bellwied, R.; De Silva, L. C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Sharma, M.; Tarini, L. H.; Trainor, T. A.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA. [Chen, J. Y.; Li, N.; Li, Z. M.; Liu, F.; Shi, S. S.; Wu, Y. F.; Zhang, J. B.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China. [Bruna, E.; Caines, H.; Chikanian, A.; Finch, E.; Harris, J. W.; Heinz, M.; Knospe, A. G.; Majka, R.; Ohlson, A.; Putschke, J.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA. [Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia. RP Aggarwal, MM (reprint author), Panjab Univ, Chandigarh 160014, India. RI Alekseev, Igor/J-8070-2014; Sumbera, Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Xu, Wenqin/H-7553-2014; Bruna, Elena/C-4939-2014; Dogra, Sunil /B-5330-2013; Chaloupka, Petr/E-5965-2012; Huang, Bingchu/H-6343-2015; Derradi de Souza, Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017; Pandit, Yadav/I-2170-2013; Lednicky, Richard/K-4164-2013; Yang, Yanyun/B-9485-2014; Mischke, Andre/D-3614-2011; Takahashi, Jun/B-2946-2012; Rusnak, Jan/G-8462-2014; Bielcikova, Jana/G-9342-2014; Planinic, Mirko/E-8085-2012; Peitzmann, Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Yip, Kin/D-6860-2013; Xue, Liang/F-8077-2013; Voloshin, Sergei/I-4122-2013; Okorokov, Vitaly/C-4800-2017; Ma, Yu-Gang/M-8122-2013 OI Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323; Strikhanov, Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991; Bruna, Elena/0000-0001-5427-1461; Huang, Bingchu/0000-0002-3253-3210; Derradi de Souza, Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; Pandit, Yadav/0000-0003-2809-7943; Yang, Yanyun/0000-0002-5982-1706; Takahashi, Jun/0000-0002-4091-1779; Peitzmann, Thomas/0000-0002-7116-899X; Yip, Kin/0000-0002-8576-4311; Xue, Liang/0000-0002-2321-9019; Okorokov, Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900 FU RHIC Operations Group and RCF at BNL; NERSC Center at LBNL; Open Science Grid consortium; offices of NP and HEP within the US DOE Office of Science; US NSF; Sloan Foundation; DFG cluster of excellence "Origin and Structure of the Universe" of Germany; FAPESP CNPq of Brazil [CNRS/IN2P3]; Ministry of Education and Science of the Russian Federation; NNSFC, CAS, MoST, and MoE of China; GA and MSMT of the Czech Republic; FOM and NWO of the Netherlands; DAE, DST, and CSIR of India; Polish Ministry of Science and Higher Education; Korea Research Foundation; Ministry of Science, Education and Sports of the Republic of Croatia; RosAtom of Russia FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the offices of NP and HEP within the US DOE Office of Science; the US NSF; the Sloan Foundation; the DFG cluster of excellence "Origin and Structure of the Universe" of Germany; CNRS/IN2P3, the FAPESP CNPq of Brazil; the Ministry of Education and Science of the Russian Federation; NNSFC, CAS, MoST, and MoE of China; GA and MSMT of the Czech Republic; FOM and NWO of the Netherlands, DAE, DST, and CSIR of India; the Polish Ministry of Science and Higher Education; Korea Research Foundation; the Ministry of Science, Education and Sports of the Republic of Croatia; and RosAtom of Russia. NR 41 TC 48 Z9 49 U1 0 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 EI 1089-490X J9 PHYS REV C JI Phys. Rev. C PD FEB 4 PY 2011 VL 83 IS 2 AR 024901 DI 10.1103/PhysRevC.83.024901 PG 16 WC Physics, Nuclear SC Physics GA 716OB UT WOS:000286982200001 ER PT J AU Lipscombe, OJ Chen, GF Fang, C Perring, TG Abernathy, DL Christianson, AD Egami, T Wang, NL Hu, JP Dai, PC AF Lipscombe, O. J. Chen, G. F. Fang, Chen Perring, T. G. Abernathy, D. L. Christianson, A. D. Egami, Takeshi Wang, Nanlin Hu, Jiangping Dai, Pengcheng TI Spin Waves in the (pi, 0) Magnetically Ordered Iron Chalcogenide Fe1.05Te SO PHYSICAL REVIEW LETTERS LA English DT Article ID HIGH-TEMPERATURE SUPERCONDUCTIVITY; STATE AB We use neutron scattering to show that spin waves in the iron chalcogenide Fe1.05Te display novel dispersion clearly different from both the first principles density functional calculations and recent observations in the related iron pnictide CaFe2As2. By fitting to a Heisenberg Hamiltonian, we find that although the nearest-neighbor exchange couplings in the two systems are quite different, their next-nearest-neighbor (NNN) couplings are similar. This suggests that superconductivity in the pnictides and chalcogenides share a common magnetic origin that is intimately associated with the NNN magnetic coupling between the irons. C1 [Lipscombe, O. J.; Egami, Takeshi; Dai, Pengcheng] Univ Tennessee, Knoxville, TN 37996 USA. [Chen, G. F.; Wang, Nanlin; Hu, Jiangping; Dai, Pengcheng] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China. [Fang, Chen; Hu, Jiangping] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA. [Perring, T. G.] STFC Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England. [Perring, T. G.] UCL, Dept Phys & Astron, London WC1E 6BT, England. [Abernathy, D. L.; Christianson, A. D.; Egami, Takeshi; Dai, Pengcheng] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Lipscombe, OJ (reprint author), Univ Tennessee, Knoxville, TN 37996 USA. EM daip@ornl.gov RI BL18, ARCS/A-3000-2012; Dai, Pengcheng /C-9171-2012; Abernathy, Douglas/A-3038-2012; Hu, Jiangping/A-9154-2010; christianson, andrew/A-3277-2016; Fang, Chen/C-8263-2011; hu, jiangping /C-3320-2014 OI Dai, Pengcheng /0000-0002-6088-3170; Abernathy, Douglas/0000-0002-3533-003X; Hu, Jiangping/0000-0003-4480-1734; christianson, andrew/0000-0003-3369-5884; FU U.S. DOE, BES [DOE DE-FG02-05ER46202]; U.S. DOE, Division of Scientific User Facilities; CAS; DOE, BES, EPSCoR [DE-FG02-08ER46528] FX This work is supported in part by the U.S. DOE, BES, through DOE DE-FG02-05ER46202 and by the U.S. DOE, Division of Scientific User Facilities. The work at the IOP is supported by the CAS. O.J.L. and T.E. were supported by the DOE, BES, EPSCoR Grant No. DE-FG02-08ER46528. NR 32 TC 71 Z9 71 U1 2 U2 21 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 FEB 4 PY 2011 VL 106 IS 5 AR 057004 DI 10.1103/PhysRevLett.106.057004 PG 4 WC Physics, Multidisciplinary SC Physics GA 716PR UT WOS:000286986400012 PM 21405424 ER PT J AU Rams, MM Damski, B AF Rams, Marek M. Damski, Bogdan TI Quantum Fidelity in the Thermodynamic Limit SO PHYSICAL REVIEW LETTERS LA English DT Article ID MOTT INSULATOR; PHASE-TRANSITION; SYMMETRY; PHYSICS; GASES; ATOMS AB We study quantum fidelity, the overlap between two ground states of a many-body system, focusing on the thermodynamic regime. We show how a drop in fidelity near a critical point encodes universal information about a quantum phase transition. Our general scaling results are illustrated in the quantum Ising chain for which a remarkably simple expression for fidelity is found. C1 [Rams, Marek M.; Damski, Bogdan] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Rams, Marek M.] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland. RP Rams, MM (reprint author), Los Alamos Natl Lab, Div Theoret, MS B213, Los Alamos, NM 87545 USA. RI Damski, Bogdan/E-3027-2013; Rams, Marek/E-1598-2016 OI Rams, Marek/0000-0002-1235-7758 FU U.S. Department of Energy FX This work is supported by U.S. Department of Energy through the LANL/LDRD Program. NR 25 TC 55 Z9 55 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 FEB 4 PY 2011 VL 106 IS 5 AR 055701 DI 10.1103/PhysRevLett.106.055701 PG 4 WC Physics, Multidisciplinary SC Physics GA 716PR UT WOS:000286986400006 PM 21405410 ER PT J AU Weinstein, LB Piasetzky, E Higinbotham, DW Gomez, J Hen, O Shneor, R AF Weinstein, L. B. Piasetzky, E. Higinbotham, D. W. Gomez, J. Hen, O. Shneor, R. TI Short Range Correlations and the EMC Effect SO PHYSICAL REVIEW LETTERS LA English DT Article ID STRUCTURE-FUNCTION RATIO; LARGE-X; NUCLEON STRUCTURE; DEUTERIUM; SCATTERING; NEUTRON; PROTON AB This Letter shows quantitatively that the magnitude of the EMC effect measured in electron deep inelastic scattering at intermediate x(B), 0.35 <= x(B) <= 0.7, is linearly related to the short range correlation (SRC) scale factor obtained from electron inclusive scattering at x(B) >= 1. The observed phenomenological relationship is used to extract the ratio of the deuteron to the free pn pair cross sections and F-2(n)/F-2(p), the ratio of the free neutron to free proton structure functions. We speculate that the observed correlation is because both the EMC effect and SRC are dominated by the high virtuality (high momentum) nucleons in the nucleus. C1 [Weinstein, L. B.] Old Dominion Univ, Norfolk, VA 23529 USA. [Piasetzky, E.; Hen, O.; Shneor, R.] Tel Aviv Univ, IL-69978 Tel Aviv, Israel. [Gomez, J.; Hen, O.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. RP Weinstein, LB (reprint author), Old Dominion Univ, Norfolk, VA 23529 USA. EM weinstein@odu.edu RI Higinbotham, Douglas/J-9394-2014 OI Higinbotham, Douglas/0000-0003-2758-6526 FU U.S. Department of Energy; U.S. National Science Foundation; Israel Science Foundation; US-Israeli Bi-National Science Foundation; DOE [DE-AC05-06OR23177] FX We are grateful for many fruitful discussions with John Arrington, Sebastian Kuhn, Mark Strikman, Franz Gross, Jerry Miller, and Wally Melnitchouk. This work was supported by the U.S. Department of Energy, the U.S. National Science Foundation, the Israel Science Foundation, and the US-Israeli Bi-National Science Foundation. Jefferson Science Associates operates the Thomas Jefferson National Accelerator Facility under DOE Contract No. DE-AC05-06OR23177. NR 31 TC 55 Z9 55 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 FEB 4 PY 2011 VL 106 IS 5 AR 052301 DI 10.1103/PhysRevLett.106.052301 PG 4 WC Physics, Multidisciplinary SC Physics GA 716PR UT WOS:000286986400004 PM 21405385 ER PT J AU Colbourne, JK Pfrender, ME Gilbert, D Thomas, WK Tucker, A Oakley, TH Tokishita, S Aerts, A Arnold, GJ Basu, MK Bauer, DJ Caceres, CE Carmel, L Casola, C Choi, JH Detter, JC Dong, QF Dusheyko, S Eads, BD Frohlich, T Geiler-Samerotte, KA Gerlach, D Hatcher, P Jogdeo, S Krijgsveld, J Kriventseva, EV Kultz, D Laforsch, C Lindquist, E Lopez, J Manak, JR Muller, J Pangilinan, J Patwardhan, RP Pitluck, S Pritham, EJ Rechtsteiner, A Rho, M Rogozin, IB Sakarya, O Salamov, A Schaack, S Shapiro, H Shiga, Y Skalitzky, C Smith, Z Souvorov, A Sung, W Tang, ZJ Tsuchiya, D Tu, H Vos, H Wang, M Wolf, YI Yamagata, H Yamada, T Ye, YZ Shaw, JR Andrews, J Crease, TJ Tang, HX Lucas, SM Robertson, HM Bork, P Koonin, EV Zdobnov, EM Grigoriev, IV Lynch, M Boore, JL AF Colbourne, John K. Pfrender, Michael E. Gilbert, Donald Thomas, W. Kelley Tucker, Abraham Oakley, Todd H. Tokishita, Shinichi Aerts, Andrea Arnold, Georg J. Basu, Malay Kumar Bauer, Darren J. Caceres, Carla E. Carmel, Liran Casola, Claudio Choi, Jeong-Hyeon Detter, John C. Dong, Qunfeng Dusheyko, Serge Eads, Brian D. Froehlich, Thomas Geiler-Samerotte, Kerry A. Gerlach, Daniel Hatcher, Phil Jogdeo, Sanjuro Krijgsveld, Jeroen Kriventseva, Evgenia V. Kueltz, Dietmar Laforsch, Christian Lindquist, Erika Lopez, Jacqueline Manak, J. Robert Muller, Jean Pangilinan, Jasmyn Patwardhan, Rupali P. Pitluck, Samuel Pritham, Ellen J. Rechtsteiner, Andreas Rho, Mina Rogozin, Igor B. Sakarya, Onur Salamov, Asaf Schaack, Sarah Shapiro, Harris Shiga, Yasuhiro Skalitzky, Courtney Smith, Zachary Souvorov, Alexander Sung, Way Tang, Zuojian Tsuchiya, Dai Tu, Hank Vos, Harmjan Wang, Mei Wolf, Yuri I. Yamagata, Hideo Yamada, Takuji Ye, Yuzhen Shaw, Joseph R. Andrews, Justen Crease, Teresa J. Tang, Haixu Lucas, Susan M. Robertson, Hugh M. Bork, Peer Koonin, Eugene V. Zdobnov, Evgeny M. Grigoriev, Igor V. Lynch, Michael Boore, Jeffrey L. TI The Ecoresponsive Genome of Daphnia pulex SO SCIENCE LA English DT Article ID CAENORHABDITIS-ELEGANS; DUPLICATE GENES; EXPRESSION; MAGNA; EVOLUTION AB We describe the draft genome of the microcrustacean Daphnia pulex, which is only 200 megabases and contains at least 30,907 genes. The high gene count is a consequence of an elevated rate of gene duplication resulting in tandem gene clusters. More than a third of Daphnia's genes have no detectable homologs in any other available proteome, and the most amplified gene families are specific to the Daphnia lineage. The coexpansion of gene families interacting within metabolic pathways suggests that the maintenance of duplicated genes is not random, and the analysis of gene expression under different environmental conditions reveals that numerous paralogs acquire divergent expression patterns soon after duplication. Daphnia-specific genes, including many additional loci within sequenced regions that are otherwise devoid of annotations, are the most responsive genes to ecological challenges. C1 [Colbourne, John K.; Gilbert, Donald; Choi, Jeong-Hyeon; Dong, Qunfeng; Eads, Brian D.; Lopez, Jacqueline; Patwardhan, Rupali P.; Rechtsteiner, Andreas; Smith, Zachary; Tang, Zuojian; Tsuchiya, Dai; Shaw, Joseph R.; Andrews, Justen; Tang, Haixu] Indiana Univ, Ctr Genom & Bioinformat, Bloomington, IN 47405 USA. [Pfrender, Michael E.] Utah State Univ, Dept Biol, Logan, UT 84322 USA. [Gilbert, Donald; Tucker, Abraham; Casola, Claudio; Eads, Brian D.; Schaack, Sarah; Andrews, Justen; Lynch, Michael] Indiana Univ, Dept Biol, Bloomington, IN 47405 USA. [Thomas, W. Kelley; Tucker, Abraham; Bauer, Darren J.; Hatcher, Phil; Jogdeo, Sanjuro; Sung, Way] Univ New Hampshire, Hubbard Ctr Genome Studies, Durham, NH 03824 USA. [Oakley, Todd H.; Geiler-Samerotte, Kerry A.; Sakarya, Onur] Univ Calif Santa Barbara, Dept Ecol Evolut & Marine Biol, Santa Barbara, CA 93106 USA. [Tokishita, Shinichi; Shiga, Yasuhiro; Yamagata, Hideo] Tokyo Univ Pharm & Life Sci, Sch Life Sci, Div Environm Sci, Lab Environm & Mol Biol, Tokyo 1920392, Japan. [Aerts, Andrea; Detter, John C.; Dusheyko, Serge; Lindquist, Erika; Pangilinan, Jasmyn; Pitluck, Samuel; Salamov, Asaf; Shapiro, Harris; Tu, Hank; Wang, Mei; Lucas, Susan M.; Grigoriev, Igor V.; Boore, Jeffrey L.] JGI, Dept Energy, Walnut Creek, CA 94598 USA. [Arnold, Georg J.; Froehlich, Thomas] Univ Munich, Gene Ctr, Lab Funct Genome Anal LAFUGA, D-82152 Planegg Martinsried, Germany. [Basu, Malay Kumar; Carmel, Liran; Rogozin, Igor B.; Souvorov, Alexander; Wolf, Yuri I.; Koonin, Eugene V.] NIH, Natl Ctr Biotechnol Informat, Natl Lib Med, Bethesda, MD 20894 USA. [Caceres, Carla E.] Univ Illinois, Sch Integrat Biol, Urbana, IL 61801 USA. [Gerlach, Daniel; Kriventseva, Evgenia V.; Zdobnov, Evgeny M.] Univ Geneva, Sch Med, CH-1211 Geneva, Switzerland. [Gerlach, Daniel; Kriventseva, Evgenia V.; Zdobnov, Evgeny M.] Swiss Inst Bioinformat, CH-1211 Geneva, Switzerland. [Krijgsveld, Jeroen; Vos, Harmjan] Univ Utrecht, Bijvoet Ctr Biomol Res, Biomol Mass Spectrometry & Prote Grp, NL-3584 CA Utrecht, Netherlands. [Krijgsveld, Jeroen; Vos, Harmjan] Univ Utrecht, Utrecht Inst Pharmaceut Sci, NL-3584 CA Utrecht, Netherlands. [Krijgsveld, Jeroen; Vos, Harmjan] Univ Utrecht, Netherlands Prote Ctr, NL-3584 CA Utrecht, Netherlands. [Kueltz, Dietmar] Univ Calif Davis, Dept Anim Sci, Davis, CA 95616 USA. [Laforsch, Christian] Univ Munich, Dept Biol 2, D-82152 Planegg Martinsried, Germany. [Laforsch, Christian] Univ Munich, GeoBio Ctr Munich, D-82152 Planegg Martinsried, Germany. [Manak, J. Robert; Skalitzky, Courtney] Roche NimbleGen Inc, Gene Express, Madison, WI 53719 USA. [Muller, Jean; Yamada, Takuji; Bork, Peer] European Mol Biol Lab, Struct & Computat Biol Unit, D-69117 Heidelberg, Germany. [Pritham, Ellen J.; Schaack, Sarah] Univ Texas Arlington, Dept Biol, Arlington, TX 76019 USA. [Rho, Mina; Ye, Yuzhen; Tang, Haixu] Indiana Univ, Sch Informat & Comp, Bloomington, IN 47408 USA. [Shaw, Joseph R.] Indiana Univ, Sch Publ & Environm Affairs, Bloomington, IN 47405 USA. [Crease, Teresa J.] Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada. [Robertson, Hugh M.] Univ Illinois, Dept Entomol, Urbana, IL 61801 USA. [Zdobnov, Evgeny M.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Boore, Jeffrey L.] Genome Project Solut, Hercules, CA 94547 USA. [Boore, Jeffrey L.] Univ Calif Berkeley, Dept Integrat Biol, Berkeley, CA 94720 USA. RP Colbourne, JK (reprint author), Indiana Univ, Ctr Genom & Bioinformat, 915 E 3rd St, Bloomington, IN 47405 USA. EM jcolbour@indiana.edu RI Choi, Jeong-Hyeon/E-3084-2010; Krijgsveld, Jeroen/F-5974-2011; Zdobnov, Evgeny/K-1133-2012; Bork, Peer/F-1813-2013; Frohlich, Thomas/C-6735-2011; Choi, Justin/F-8792-2014; Colbourne, John/L-7748-2014; Crease, Teresa/E-2932-2015 OI Bork, Peer/0000-0002-2627-833X; Oakley, Todd/0000-0002-4478-915X; Gerlach, Daniel/0000-0001-9338-3765; Muller, Jean/0000-0002-7682-559X; Colbourne, John/0000-0002-6966-2972; Crease, Teresa/0000-0001-8074-8024 FU Office of Science of the U.S. Department of Energy [DE-AC02-05CH11231]; Daphnia Genomics Consortium (DGC); NSF [0221837, 0328516]; NIH [R24GM07827401]; METACyt Initiative of Indiana University; Lilly Endowment, Inc. FX We thank M. Frazer (JGI), P. Cherbas (CGB), R. Green, and T. Takova (Roche NimbleGen, Inc.). The work conducted by the U.S. Department of Energy Joint Genome Institute (JGI) was supported by the Office of Science of the U.S. Department of Energy under contract DE-AC02-05CH11231 and in collaboration with the Daphnia Genomics Consortium (DGC). This project was also supported by NSF grants 0221837 and 0328516 and NIH grant R24GM07827401. Coordination infrastructure for the DGC is provided by the Center for Genomics and Bioinformatics (CGB) at Indiana University, which is supported in part by the METACyt Initiative of Indiana University, funded in part through a major grant from the Lilly Endowment, Inc. Additional contributions and acknowledgments are provided in the SOM. Our work benefits from and contributes to the Daphnia Genomics Consortium. Daphnia pulex genome assembly version 1.1 and annotations are deposited at DNA Data Bank of Japan, European Molecular Biology Laboratory, and GenBank databases under accession ACJG00000000. ESTs (FE274839 to FE425949) are in GenBank. Microarray platforms GPL11200 to GPL11201 and data GSE25823 are deposited at National Center for Biotechnology Information Gene Expression Omnibus database. NR 24 TC 515 Z9 535 U1 32 U2 245 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA SN 0036-8075 J9 SCIENCE JI Science PD FEB 4 PY 2011 VL 331 IS 6017 BP 555 EP 561 DI 10.1126/science.1197761 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 715ZE UT WOS:000286933600046 PM 21292972 ER PT J AU Wen, JG Bareno, J Lei, CH Kang, SH Balasubramanian, M Petrov, I Abraham, DP AF Wen, J. G. Bareno, J. Lei, C. H. Kang, S. H. Balasubramanian, M. Petrov, I. Abraham, D. P. TI Analytical electron microscopy of Li1.2Co0.4Mn0.4O2 for lithium-ion batteries SO SOLID STATE IONICS LA English DT Article DE STEM; EELS; Li ordering; LiCoO2; Li2MnO3 ID SOLID-SOLUTIONS; CATHODE MATERIALS; LOCAL-STRUCTURE; LICOO2-LI2MNO3; LI2MNO3; SYSTEM; MN; DIFFRACTION; PRINCIPLES; NMR AB The structure of as-prepared Li1.2Co0.4Mn0.4O2 is studied using a combination of techniques that includes high-resolution electron microscopy (HREM), high-angle annular dark-field imaging in scanning transmission electron microscopy (HAADF-STEM), selected-area electron diffraction (SAED) and electron energy loss spectroscopy (EELS). Electron diffraction and imaging revealed Li ordering in the transition metal planes consistent with the presence of locally monoclinic (Li2MnO3-like) regions with three different topotaxial orientations with respect to a parent rhombohedral (LiCoO2-like) structure. EELS analyses revealed compositional variations too small to be compatible with perfect, or close to perfect, segregation into pure LiCoO2 and Li2MnO3 over length scales longer than the sample thickness. We propose a structural model in which Mn and Co segregate within TM planes to form LiMn6 and Co clusters, which overlap within EELS sampling volumes causing the observed Co/Mn homogeneity. (C) 2010 Elsevier B.V. All rights reserved. C1 [Bareno, J.; Kang, S. H.; Abraham, D. P.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Wen, J. G.; Lei, C. H.; Petrov, I.] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA. [Balasubramanian, M.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Bareno, J (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM bareno@anl.gov; abraham@anl.gov RI Petrov, Ivan/D-4910-2011; OI Petrov, Ivan/0000-0002-2955-4897; Bareno, Javier/0000-0003-1230-9278 FU U.S. Department of Energy [DE-FG02-07ER46453, DE-FG02-07ER46471]; U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX We acknowledge the use of the Center for Microanalysis of Materials (CMM) at the Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign (Illinois), which is partially supported by the U.S. Department of Energy under grant DE-FG02-07ER46453 and DE-FG02-07ER46471. Argonne National Laboratory is a U.S. Department of Energy Office of Science laboratory operated by UChicago Argonne LLC under contract DE-AC02-06CH11357. We are grateful to E. Samman at CMM-Illinois for helpful discussions. NR 31 TC 39 Z9 39 U1 3 U2 77 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-2738 J9 SOLID STATE IONICS JI Solid State Ion. PD FEB 3 PY 2011 VL 182 IS 1 BP 98 EP 107 DI 10.1016/j.ssi.2010.11.030 PG 10 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA 738DU UT WOS:000288620400016 ER PT J AU Anand, VK Hossain, Z Ramakrishnan, S AF Anand, V. K. Hossain, Z. Ramakrishnan, S. TI Antiferromagnetic ordering below 1.7 K in PrIr2Ge2 SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE Intermetallic compound; Antiferromagnetic ordering; Magnetization; Specific heat; Crystal field effect ID NEUTRON-DIFFRACTION; MAGNETIC-STRUCTURE; SINGLE-CRYSTAL; RARE-EARTH; SUPERCONDUCTIVITY; CERH2SI2; POLYMORPHISM; PRESSURE; CEIR2GE2 AB We present our investigations on magnetic and transport properties of polycrystalline PrIr2Ge2 which forms in CaBe2Ge2-type primitive tetragonal structure (space group P4/nmm). The ac magnetic susceptibility data exhibit two well pronounced peaks at 2.08 K and 0.76 K due to the onset of magnetic order. The specific heat also exhibits a sharp lambda-type anomaly at 1.7 K confirming the onset of bulk antiferromagnetic order. The temperature dependence of magnetic part of entropy suggests a quasi-triplet ground state in this compound. The onset of magnetic order is also confirmed by the electrical resistivity data. (C) 2010 Elsevier B.V. All rights reserved. C1 [Anand, V. K.; Ramakrishnan, S.] Tata Inst Fundamental Res, Dept Condensed Matter Phys & Mat Sci, Bombay 400005, Maharashtra, India. [Hossain, Z.] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India. RP Anand, VK (reprint author), Ames Lab, A-204,Zaffarano Hall, Ames, IA 50011 USA. EM vivekkranand@gmail.com RI Anand, Vivek Kumar/J-3381-2013 OI Anand, Vivek Kumar/0000-0003-2023-7040 NR 33 TC 1 Z9 1 U1 0 U2 4 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 FEB 3 PY 2011 VL 509 IS 5 BP 1436 EP 1439 DI 10.1016/j.jallcom.2010.11.095 PG 4 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 718ZY UT WOS:000287167700030 ER PT J AU Gray, EM Blach, TP Pitt, MP Cookson, DJ AF Gray, E. Mac A. Blach, T. P. Pitt, M. P. Cookson, D. J. TI Mechanism of the alpha-to-beta phase transformation in the LaNi5-H-2 system SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE Hydrides; Hydrogen absorption; Phase transformation kinetics; X-ray diffraction ID SYNCHROTRON POWDER DIFFRACTION; ABSORPTION-DESORPTION CYCLES; NEUTRON-DIFFRACTION; HYDROGEN ABSORPTION; INTERMETALLIC COMPOUNDS; LATTICE-DEFECTS; VOIGT FUNCTION; HYDRIDES; DEUTERIDES; TEMPERATURE AB High-energy synchrotron in situ X-ray powder diffraction has been used to elucidate the mechanism of the hydriding phase transformation in a LaNi5 model hydrogen storage intermetallic in real time. The transformation proceeds at 10 degrees C via the transient growth of an interfacial phase, the gamma phase, with lattice parameters intermediate between those of the alpha (dilute solid solution) and beta (concentrated hydride) phases. The gamma phase forms to partially accommodate the 24% change in unit cell volume between the alpha and beta phases during hydriding and dehydriding. The alpha, gamma and beta phases coexist at the nanoscopic level. (C) 2010 Elsevier B.V. All rights reserved. C1 [Gray, E. Mac A.; Blach, T. P.; Pitt, M. P.] Griffith Univ, Queensland Micro & Nanotechnol Ctr, Brisbane, Qld 4111, Australia. [Cookson, D. J.] Australian Synchrotron Res Program, Adv Photon Source, Argonne, IL 60439 USA. RP Gray, EM (reprint author), Griffith Univ, Queensland Micro & Nanotechnol Ctr, Brisbane, Qld 4111, Australia. EM E.Gray@griffith.edu.au RI Griffith University, QMNC/I-5498-2013; Gray, Evan/E-1683-2013 OI Gray, Evan/0000-0002-3521-5007 FU Commonwealth of Australia; U.S. National Science Foundation/Department of Energy [CHE0087817]; U.S. Department of Energy, Basic Energy Sciences, Office of Science [W-31-109-Eng-38] FX Use of the ChemMatCARS sector 15 at the Advanced Photon Source was supported by the Australian Synchrotron Research Program, funded by the Commonwealth of Australia under the Major National Research Facilities Program. ChemMatCARS Sector 15 is principally supported by the U.S. National Science Foundation/Department of Energy under grant number CHE0087817. The Advanced Photon Source is supported by the U.S. Department of Energy, Basic Energy Sciences, Office of Science, under Contract No. W-31-109-Eng-38. The authors are grateful to Prof. E. Akiba for supplying the high-quality LaNi5 used in this study. NR 36 TC 4 Z9 4 U1 0 U2 11 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 FEB 3 PY 2011 VL 509 IS 5 BP 1630 EP 1635 DI 10.1016/j.jallcom.2010.11.083 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 718ZY UT WOS:000287167700064 ER PT J AU Choudhury, TD Rao, NVS Tenent, R Blackburn, J Gregg, B Smalyukh, II AF Choudhury, Trirup Dutta Rao, Nandiraju V. S. Tenent, Robert Blackburn, Jeffrey Gregg, Brian Smalyukh, Ivan I. TI Homeotropic Alignment and Director Structures in Thin Films of Triphenylamine-Based Discotic Liquid Crystals Controlled by Supporting Nanostructured Substrates and Surface Confinement SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID STOKES-RAMAN SCATTERING; X-RAY-DIFFRACTION; COLUMNAR MESOPHASE; CARBON NANOTUBES; ORGANIC PHOTOVOLTAICS; UNIAXIAL ALIGNMENT; SELF-ORGANIZATION; MICROSCOPY; ORIENTATION; PORPHYRIN AB We explore the effects of nanoscale morphology of supporting solid substrates on alignment, defects, and director structures exhibited by thin films of triphenylamine-based discotic liquid crystals. Fluorescence confocal polarizing microscopy and intrinsic polarized fluorescence properties of studied molecules are used to visualize three-dimensional director fields in the liquid crystal films. We demonstrate that, by controlling surface anchoring on supporting or confining solid substrates such as those of carbon nanotube electrodes on glass plates, both uniform homeotropic and in-plane (edge-on) alignment and nonuniform structures with developable domains can be achieved for the same discotic liquid crystal material. C1 [Choudhury, Trirup Dutta; Rao, Nandiraju V. S.] Assam Univ, Dept Chem, Silchar 788011, Assam, India. [Choudhury, Trirup Dutta; Smalyukh, Ivan I.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA. [Tenent, Robert; Blackburn, Jeffrey; Gregg, Brian] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Smalyukh, Ivan I.] Univ Colorado, Liquid Crystal Mat Res Ctr, Boulder, CO 80309 USA. [Smalyukh, Ivan I.] Univ Colorado, Renewable & Sustainable Energy Inst, Boulder, CO 80309 USA. RP Rao, NVS (reprint author), Assam Univ, Dept Chem, Silchar 788011, Assam, India. RI Blackburn, Jeffrey/D-7344-2012; Smalyukh, Ivan/C-2955-2011 OI Smalyukh, Ivan/0000-0003-3444-1966 FU International Institute for Complex Adaptive Matter (I2CAM); DST; DAE; DRDO; UGC in India; NSF, USA [DMR 0645461, DMR-0820579, DMR-0847782] FX This research was supported by the International Institute for Complex Adaptive Matter (I2CAM) exchange award program as well as by DST, DAE, DRDO, and UGC in India and the NSF grants DMR 0645461, DMR-0820579, and DMR-0847782 in the USA. NR 76 TC 19 Z9 19 U1 2 U2 40 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD FEB 3 PY 2011 VL 115 IS 4 BP 609 EP 617 DI 10.1021/jp106344f PG 9 WC Chemistry, Physical SC Chemistry GA 712CF UT WOS:000286639500001 PM 21214228 ER PT J AU Nishimura, S Li, Z Watanabe, H Yoshinaga, K Sumikama, T Tachibana, T Yamaguchi, K Kurata-Nishimura, M Lorusso, G Miyashita, Y Odahara, A Baba, H Berryman, JS Blasi, N Bracco, A Camera, F Chiba, J Doornenbal, P Go, S Hashimoto, T Hayakawa, S Hinke, C Ideguchi, E Isobe, T Ito, Y Jenkins, DG Kawada, Y Kobayashi, N Kondo, Y Krucken, R Kubono, S Nakano, T Ong, HJ Ota, S Podolyak, Z Sakurai, H Scheit, H Steiger, K Steppenbeck, D Sugimoto, K Takano, S Takashima, A Tajiri, K Teranishi, T Wakabayashi, Y Walker, PM Wieland, O Yamaguchi, H AF Nishimura, S. Li, Z. Watanabe, H. Yoshinaga, K. Sumikama, T. Tachibana, T. Yamaguchi, K. Kurata-Nishimura, M. Lorusso, G. Miyashita, Y. Odahara, A. Baba, H. Berryman, J. S. Blasi, N. Bracco, A. Camera, F. Chiba, J. Doornenbal, P. Go, S. Hashimoto, T. Hayakawa, S. Hinke, C. Ideguchi, E. Isobe, T. Ito, Y. Jenkins, D. G. Kawada, Y. Kobayashi, N. Kondo, Y. Kruecken, R. Kubono, S. Nakano, T. Ong, H. J. Ota, S. Podolyak, Zs. Sakurai, H. Scheit, H. Steiger, K. Steppenbeck, D. Sugimoto, K. Takano, S. Takashima, A. Tajiri, K. Teranishi, T. Wakabayashi, Y. Walker, P. M. Wieland, O. Yamaguchi, H. TI beta-Decay Half-Lives of Very Neutron-Rich Kr to Tc Isotopes on the Boundary of the r-Process Path: An Indication of Fast r-Matter Flow SO PHYSICAL REVIEW LETTERS LA English DT Article ID MASS FORMULA AB The beta-decay half-lives of 38 neutron-rich isotopes from Kr-36 to Tc-43 have been measured; the half-lives of Kr-100, Sr103-105, Y106-108, Zr108-110, Nb-111,Nb-112, Mo112-115, and Tc-116,Tc-117 are reported here. The results when compared with previous standard models indicate an overestimation in the predicted half-lives by a factor of 2 or more in the A approximate to 110 region. A revised model based on the second generation gross theory of beta decay better predicts the measured half-lives and suggests a more rapid flow of the rapid neutron-capture process (r-matter flow) through this region than previously predicted. C1 [Nishimura, S.; Li, Z.; Watanabe, H.; Yoshinaga, K.; Kurata-Nishimura, M.; Lorusso, G.; Baba, H.; Doornenbal, P.; Isobe, T.; Sakurai, H.; Scheit, H.; Steppenbeck, D.] RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan. [Yoshinaga, K.; Sumikama, T.; Miyashita, Y.; Chiba, J.; Nakano, T.; Sugimoto, K.; Takano, S.] Tokyo Univ Sci, Dept Phys, Chiba 2788510, Japan. [Tachibana, T.] Waseda Univ, Senior High Sch 4, Nerima Tokyo 1770044, Japan. [Yamaguchi, K.; Odahara, A.; Ito, Y.; Takashima, A.; Tajiri, K.] Osaka Univ, Dept Phys, Osaka 5600043, Japan. [Lorusso, G.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. [Berryman, J. S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Blasi, N.; Bracco, A.; Camera, F.; Wieland, O.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy. [Bracco, A.; Camera, F.] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy. [Go, S.; Hashimoto, T.; Hayakawa, S.; Ideguchi, E.; Kubono, S.; Ota, S.; Yamaguchi, H.] Univ Tokyo, Ctr Nucl Study, Wako, Saitama 3510198, Japan. [Hinke, C.; Kruecken, R.; Steiger, K.] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany. [Jenkins, D. G.] Univ York, Dept Phys, York Y01 5DD, N Yorkshire, England. [Kawada, Y.; Kobayashi, N.; Kondo, Y.] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan. [Ong, H. J.] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan. [Podolyak, Zs.; Walker, P. M.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England. [Teranishi, T.] Kyushu Univ, Dept Phys, Fukuoka 8128581, Japan. [Wakabayashi, Y.] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan. RP Nishimura, S (reprint author), RIKEN, Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan. RI Wieland, Oliver/G-1784-2011; Teranishi, Takashi/D-2166-2012; SAKURAI, HIROYOSHI/G-5085-2014; Scheit, Heiko/B-4779-2008; U-ID, Kyushu/C-5291-2016; Willenbring, Jane/B-6431-2011; Kruecken, Reiner/A-1640-2013 OI Camera, Franco/0000-0003-1731-4834; Scheit, Heiko/0000-0002-8937-1101; Willenbring, Jane/0000-0003-2722-9537; Kruecken, Reiner/0000-0002-2755-8042 FU KAKENHI [19340074, 50126124]; RIKEN [2005]; DFG [EXC 153, KR 2326/2]; UK STFC; AWE plc. FX This experiment was carried out at the RIBF operated by RIKEN Nishina Center, RIKEN and CNS, University of Tokyo. This work was supported in part by the KAKENHI (19340074, 50126124), the RIKEN President's Fund (2005), the DFG (EXC 153, KR 2326/2), UK STFC, and AWE plc. S. N. also thanks Dr. H. Koura and Professor P. Moller for valuable discussions. NR 19 TC 74 Z9 76 U1 2 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 FEB 3 PY 2011 VL 106 IS 5 AR 052502 DI 10.1103/PhysRevLett.106.052502 PG 5 WC Physics, Multidisciplinary SC Physics GA 716PN UT WOS:000286986000001 PM 21405387 ER PT J AU Wegener, SL Kim, H Marks, TJ Stair, PC AF Wegener, Staci L. Kim, Hacksung Marks, Tobin J. Stair, Peter C. TI Precursor Nuclearity Effects in Supported Vanadium Oxides Prepared by Organometallic Grafting SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID X-RAY-ABSORPTION; TEMPERATURE-PROGRAMMED REDUCTION; STATE V-51 NMR; DIFFUSE-REFLECTANCE SPECTROSCOPY; LASER RAMAN-SPECTROSCOPY; UV-VIS DRS; V/THETA-AL2O3 CATALYSTS; MOLECULAR-STRUCTURE; GAMMA-ALUMINA; METAL-OXIDES AB Despite widespread importance in catalysis, the active and selective sites of supported vanadium oxide (VO(x)) catalysts are not well understood. Such catalysts are of great current interest because of their industrial significance and potential for selective oxidation process.(14) However the fear that the nature of the active and selective sites is ambiguous hinders molecular level understanding of catalytic reactions and the development of new catalysts. Furthermore, complete structural elucidation requires isolation and characterization of specific vanadium oxide surface species, the preparation of which presents a significant synthetic challenge. In this study, we utilize the structural uniformity inherent in organometallic precursors for the preparation of supported vanadium oxide catalysts. The resulting catalysts are characterized by UV-visible diffuse reflectance spectroscopy (UV-vis DRS). X-ray adsorption spectroscopy (XAS), UV-Raman spectroscopy and H(2)-temperature programmed reduction (H-TRR). Significant structural and reactivity differences are observed in catalysts prepared from different organometallic precursors, indicating that the chemical nature of surface vanadia can be influenced by the nuclearity of the precursor used for grafting. C1 [Wegener, Staci L.; Kim, Hacksung; Marks, Tobin J.; Stair, Peter C.] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA. [Wegener, Staci L.; Kim, Hacksung; Marks, Tobin J.; Stair, Peter C.] Northwestern Univ, Ctr Catalysis & Surface Sci, Evanston, IL 60208 USA. [Kim, Hacksung; Stair, Peter C.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Marks, TJ (reprint author), Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA. EM t-marks@northwestern.edu; pstair@northwestern.edu FU U.S. Department of Energy, Office of Basic Energy Science [DE-AC02-06CH11357, DE-FG02-03-ER15457] FX This work was supported by the U.S. Department of Energy, Office of Basic Energy Science, under contracts DE-AC02-06CH11357 and DE-FG02-03-ER15457. NR 54 TC 11 Z9 11 U1 0 U2 20 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD FEB 3 PY 2011 VL 2 IS 3 BP 170 EP 175 DI 10.1021/jz101490p PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 717LX UT WOS:000287048800008 ER PT J AU Utschig, LM Dimitrijevic, NM Poluektov, OG Chemerisov, SD Mulfort, KL Tiede, DM AF Utschig, Lisa M. Dimitrijevic, Nada M. Poluektov, Oleg G. Chemerisov, Sergey D. Mulfort, Karen L. Tiede, David M. TI Photocatalytic Hydrogen Production from Noncovalent Biohybrid Photosystem I/Pt Nanoparticle Complexes SO JOURNAL OF PHYSICAL CHEMISTRY LETTERS LA English DT Article ID I REACTION CENTERS; ELECTRON-TRANSFER; FERREDOXIN; FLAVODOXIN AB A photocatalytic hyrdogen-evolving system based on intermolecular electron transfer between native Photosystem I (PSI) and electrostatically associated Pt nanoparticles is reported. Using cytochrome c(6) as the soluble mediator and ascorbate as the sacrificial electron donor, visible-light and induced production occurs for PSI/Pt nanoparicle biohybrids at a rate of 224 and H(2) (mg chlorophyll)(-1) h(-1) or 21.034 mol H(2) (mole PSI)(-1) h(-1). These results demonstrate that highly efficient photocatalysis of H(2) can be obtained for a self-assembled noncovalent complex between PSI and Pt nanoparticles, a molecular wire between the terminal acceptor of PSI, the [4Fe4S] cluster. F(B), and the nanoparticle is not required EPR characterization of the electron-transfer reactins in PSI/Pt nanoparticle biohybrids shows blocked electron transfer to flavodoxin the native acceptor protein of PSI, and presents evidence of low-temperature photogenerated electron transfer between PSI and the Pt nanoparticle. This work demonstrated a feasible strategy for linking molecular catalysts to PSI that takes advantage of electrostatic directed assembly to mimic acceptor protein binding. C1 [Utschig, Lisa M.; Dimitrijevic, Nada M.; Poluektov, Oleg G.; Chemerisov, Sergey D.; Mulfort, Karen L.; Tiede, David M.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. RP Utschig, LM (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM utschig@anl.gov FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-06CH11357] FX We thank A. Wagner for technical support and Marion C. Thurnauer for reading the manuscript. This work is supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract DE-AC02-06CH11357. NR 27 TC 47 Z9 47 U1 2 U2 37 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1948-7185 J9 J PHYS CHEM LETT JI J. Phys. Chem. Lett. PD FEB 3 PY 2011 VL 2 IS 3 BP 236 EP 241 DI 10.1021/jz101728v PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Atomic, Molecular & Chemical SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA 717LX UT WOS:000287048800019 ER PT J AU Kandoi, S Greeley, J Simonetti, D Shabaker, J Dumesic, JA Mavrikakis, M AF Kandoi, Shampa Greeley, Jeff Simonetti, Dante Shabaker, John Dumesic, James A. Mavrikakis, Manos TI Reaction Kinetics of Ethylene Glycol Reforming over Platinum in the Vapor versus Aqueous Phases SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID WATER-GAS SHIFT; BIOMASS-DERIVED HYDROCARBONS; SUPPORTED METAL-CATALYSTS; MODIFIED NI CATALYSTS; OXYGENATED HYDROCARBONS; METHANOL DECOMPOSITION; LOW-TEMPERATURE; HETEROGENEOUS CATALYSIS; C-C; HYDROGEN AB First-principles, periodic, density functional theory (DFT) calculations are carried out on Pt(111) to investigate the structure and energetics of dehydrogenated ethylene glycol species and transition states for the cleavage of C-H/O-H and C-C bonds. Additionally, reaction kinetics studies are carried out for the vapor phase reforming of ethylene glycol (C(2)H(6)O(2)) over Pt/Al(2)O(3) at various temperatures, pressures, and feed concentrations. These results are compared to data for aqueous phase reforming of ethylene glycol on this Pt catalyst, as reported in a previous publication (Shabaker, J. W.; et al. J. Catal. 2003, 215, 344). Microkinetic models were developed to describe the reaction kinetics data obtained for both the vapor-phase and aqueous-phase reforming processes. The results suggest that C C bond scission in ethylene glycol occurs at an intermediate value of x (3 or 4) in C(2)H(x)O(2). It is also found that similar values of kinetic parameters can be used to describe the vapor and aqueous phase reforming data, suggesting that the vapor phase chemistry of this reaction over platinum is similar to that in the aqueous phase over platinum. C1 [Kandoi, Shampa; Greeley, Jeff; Simonetti, Dante; Shabaker, John; Dumesic, James A.; Mavrikakis, Manos] Univ Wisconsin, Dept Chem & Biol Engn, Madison, WI 53705 USA. [Greeley, Jeff] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Dumesic, JA (reprint author), Univ Wisconsin, Dept Chem & Biol Engn, Madison, WI 53705 USA. EM dumesic@engr.wisc.edu; manos@engr.wisc.edu RI Mavrikakis, Manos/D-5702-2012 OI Mavrikakis, Manos/0000-0002-5293-5356 FU U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; U.S. Department of Energy's Office of Biological and Environmental Research; Office of Science of the US Department of Energy [DE-AC05-00OR22725, DE-AC02-06CH11357, DE-AC02-05CH11231] FX We wish to thank Professor Baiker for his leading work on the kinetics and mechanisms of liquid-phase catalytic reactions. This material is based upon work supported as part of the TACT, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences. Calculations were performed in part using supercomputing resources at the following institutions: (1) EMSL, a national scientific user facility located at Pacific Northwest National Laboratory; (2) the National Center for Computational Sciences (NCCS) at Oak Ridge National Laboratory; (3) the Center for Nanoscale Materials (CNM) at Argonne National Laboratory; and (4) the National Energy Research Scientific Computing Center (NERSC). EMSL is sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research. NCCS, CNM, and NERSC are supported by the Office of Science of the US Department of Energy under Contract No. DE-AC05-00OR22725, DE-AC02-06CH11357, and DE-AC02-05CH11231, respectively. NR 32 TC 35 Z9 36 U1 2 U2 61 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 FEB 3 PY 2011 VL 115 IS 4 BP 961 EP 971 DI 10.1021/jp104136s PG 11 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 712CE UT WOS:000286639400013 ER PT J AU Kumar, N Jothimurugesan, K Stanley, GG Schwartz, V Spivey, JJ AF Kumar, Nitin Jothimurugesan, K. Stanley, George G. Schwartz, Viviane Spivey, J. J. TI In Situ FT-IR Study on the Effect of Cobalt Precursors on CO Adsorption Behavior SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID FISCHER-TROPSCH SYNTHESIS; ALUMINA-SUPPORTED COBALT; DIFFUSE-REFLECTANCE FTIR; NOBLE-METALS; CATALYSTS; CO/SIO2; ETHANOL; SILICA; HYDROGENATION; PROMOTION AB Cobalt-rhenium based catalysts were prepared by coimpregnation from two different cobalt precursors: cobalt nitrate [CoRe(N)] and cobalt acetate [CoRe(A)]. They were characterized by H(2)-TPR, ICP, XRD, DRIFTS, and activity/selectivity in CO hydrogenation. The results showed that precursors have a significant effect on the cluster size, dispersion, and CO adsorption/CO hydrogenation activities. XRD showed no bulk crystallinity for the CoRe(A) catalyst, whereas peaks corresponding to a Co(3)O(4) phase were found for the CoRe(N) catalyst. TPR results suggested greater cobalt-rhenium contact for the CoRe(A) catalyst, with Re facilitating reduction of cobalt oxide by hydrogen spillover. Activity/selectivity studies showed that the CoRe(N) catalyst is more active for CO hydrogenation with high selectivity toward hydrocarbons, while the CoRe(A) catalyst has far higher selectivity to oxygenates (but considerably lower overall activity). DRIFTS studies at 25 degrees C for CO reacting with CoRe(N) showed lower frequency carbonyl bands (2057 and 1942 cm(-1)), whereas CoRe(A) had CO bands at much higher frequencies (2183-2175, 2125, and 2074 cm-1). The carbonyl bands in the 2183-2175 cm(-1) region are assigned to Co(II)/Co(III)-CO from the presence of nonreduced Co(3)O(4) on the surface of the CoRe(A) catalyst. DRIFTS studies under CO hydrogenation conditions are also presented. Lower wavenumber IR bands seen between 1990 and 1920 cm(-1) for CoRe(N) are tentatively assigned to bridging CO's on the cobalt and terminal carbonyls on Re(0) clusters. Only higher frequency CO's are observed for CoRe(A) corresponding to less electron-rich cobalt centers, linear CO coordination, and oxygenate production. The presence of nanoparticle catalysts and highly dispersed Re on the CoRe(A) catalyst is proposed to be key factors in the high oxygenate selectivity. CO is weakly adsorbed on these sites facilitating the M-CO bond dissociation and increasing the CO insertion probability leading to the oxygenate formation. C1 [Kumar, Nitin; Spivey, J. J.] Louisiana State Univ, Dept Chem Engn, Baton Rouge, LA 70803 USA. [Stanley, George G.] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA. [Jothimurugesan, K.] Chevron Energy Technol Co, Richmond, CA 94801 USA. [Schwartz, Viviane] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. RP Spivey, JJ (reprint author), Louisiana State Univ, Dept Chem Engn, Baton Rouge, LA 70803 USA. FU division of Scientific User Facilities, U.S. Department of Energy; Chevron Energy Technology Company FX The authors are thankful to Center for Nanophase Material Sciences, which is sponsored at Oak Ridge National Laboratory by the division of Scientific User Facilities, U.S. Department of Energy. The funding from Chevron Energy Technology Company is gratefully acknowledged. NR 38 TC 15 Z9 17 U1 7 U2 56 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 FEB 3 PY 2011 VL 115 IS 4 BP 990 EP 998 DI 10.1021/jp104878e PG 9 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 712CE UT WOS:000286639400016 ER PT J AU Cheong, WY Gellman, AJ AF Cheong, Wai Yeng Gellman, Andrew J. TI Energetics of Chiral Imprinting of Cu(100) by Lysine SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID TEMPERATURE-PROGRAMMED DESORPTION; RACEMIC ALANINE ADLAYERS; METAL-SURFACES; ENANTIOSPECIFIC DESORPTION; ADSORPTION; CU(110); CHEMISTRY; PD(111); CU(643); ENANTIOPURE AB Temperature-programmed desorption experiments have been used to probe the adsorption energetics of D-and L-lysine on the chiral Cu(3,1,17)(R&S) and achiral Cu(100) surfaces. Previous literature has reported the reconstruction of Cu(100) surfaces to form homochiral (3,1,17)(R) facets upon adsorption of L-lysine at high coverage and after annealing to 430 K (J. Am. Chem. Soc. 122, 2000, 12584). The implication of that work is that the adsorption energy of L-lysine on Cu(3,1,1 7)(R) is greater than on Cu(3,1,17)(S) and Cu(100), thereby driving the homochiral reconstruction. The results of temperature-programmed desorption measurements test and support this implication. The desorption energies of D- and L-lysine on the Cu(100) surface are significantly lower than those on either of the Cu(3,1,17)(R&S) surfaces. Furthermore, large enantiospecific differences in desorption kinetics were observed for D- and L-lysine on the Cu(3,1,17)(R&S) surfaces. This observed enantiospecificity is believed to originate from the enantiospecific interactions of lysine with the chiral kinked steps on these surfaces. The observation that adsorption of L-lysine on Cu(3,1,17)(R) is energetically preferred over adsorption on Cu(3,1,17)(S) is consistent with the formation of homochiral (3,1,17)(R) facets during L-lysine adsorption on Cu(100). C1 [Cheong, Wai Yeng; Gellman, Andrew J.] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. [Gellman, Andrew J.] Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. RP Gellman, AJ (reprint author), Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. EM gellman@cmu.edu RI Gellman, Andrew/M-2487-2014 OI Gellman, Andrew/0000-0001-6618-7427 FU Department of Energy [DE-SC0002448] FX This work has been supported by Department of Energy under Grant No. DE-SC0002448. NR 25 TC 23 Z9 23 U1 2 U2 26 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 FEB 3 PY 2011 VL 115 IS 4 BP 1031 EP 1035 DI 10.1021/jp105520t PG 5 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 712CE UT WOS:000286639400021 ER PT J AU Brik, MG Pan, YX Liu, GK AF Brik, M. G. Pan, Y. X. Liu, G. K. TI Spectroscopic and crystal field analysis of absorption and photoluminescence properties of red phosphor CaAl12O19:Mn4+ modified by MgO SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE Photoluminescence; Red phosphor; Crystal field modeling ID LUMINESCENCE AB The spectroscopic properties of a series of red phosphors with general composition of CaAl12O19:yMn(4+) and (Ca1-xAl12O19, xMgO):yMn(4+) (x = 0-1, y = 0.001-1.5%) synthesized by a modified solid state method in air have been investigated in detail. Addition of MgO is necessary for Mn4+ charge compensation and leads to the formation of separate crystal phases of Al2O3 and MgAl2O4, which was confirmed by the XRD studies. Enhancement of Mn4+ luminescence with increasing content of MgO was observed and a mechanism for explanation of this phenomenon is suggested. For an analysis of the crystal phases and luminescent efficiency of the phosphors in the prepared series, crystal field calculations of the Mn4+ energy levels have been performed. This theoretical approach allowed for assigning the observed excitation and emission spectra. Red shift of the Mn4+ luminescence with increasing concentration of Mg ions is explained from the point of view of enhanced nephelauxetic effect after doping. (C) 2010 Elsevier B.V. All rights reserved. C1 [Brik, M. G.] Univ Tartu, Inst Phys, EE-51014 Tartu, Estonia. [Pan, Y. X.; Liu, G. K.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Pan, Y. X.] Wenzhou Univ, Nanomat & Chem Key Lab, Wenzhou 325027, Peoples R China. RP Brik, MG (reprint author), Univ Tartu, Inst Phys, Riia 142, EE-51014 Tartu, Estonia. EM brik@fi.tartu.ee RI Brik, Mikhail/C-4971-2009 OI Brik, Mikhail/0000-0003-2841-2763 FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences [DE-AC02-06CH11357]; Estonian Science Foundation [7456, JD69, 6999, 6660] FX Work performed at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, under contract DE-AC02-06CH11357. M.G. Brik thanks Estonian Science Foundation (Grants Nos. 7456, JD69, 6999 and 6660). NR 24 TC 55 Z9 55 U1 7 U2 57 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 FEB 3 PY 2011 VL 509 IS 5 BP 1452 EP 1456 DI 10.1016/j.jallcom.2010.11.117 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 718ZY UT WOS:000287167700033 ER PT J AU Peterson, EJ Halevi, B Kiefer, B Spilde, MN Datye, AK Peterson, J Daemen, L Llobet, A Nakotte, H AF Peterson, Eric J. Halevi, Barr Kiefer, Boris Spilde, Michael N. Datye, Abhaya K. Peterson, Joe Daemen, Luc Llobet, Anna Nakotte, Heinz TI Aerosol synthesis and Rietveld analysis of tetragonal (beta(1)) PdZn SO JOURNAL OF ALLOYS AND COMPOUNDS LA English DT Article DE PdZn; Catalysis; Crystal structure; Order-disorder effects; Phase diagrams; Neutron; Diffraction; Thermal analysis; X-ray diffraction; Scanning electron microscopy; SEM; Intermetallics; Transition metal alloys and compounds ID AUGMENTED-WAVE METHOD; ULTRASOFT PSEUDOPOTENTIALS; METHANOL; ALLOYS; METALS; STABILITY; CATALYSTS; ZN AB The beta(1) PdZn intermetallic of nominal 50:50 Pd:Zn at% was synthesized using an aerosol method. The aerosol method provided atomically mixed precursor oxy-nitrate powder that was then reduced to form beta(1) PdZn, having a surface area amenable to catalytic measurements. Formation of the beta(1) PdZn during reduction was found to occur rapidly (4 h) and at moderate temperature (500 degrees C), serving to minimize the loss of volatile Zn. Chemical and structural characterization confirms that beta(1) PdZn (95-99 wt% phase pure) of the same composition as the nitrate feedstock solution can be prepared using this method. Detailed structural analysis shows that this material contains little or no vacancies and minimal Pd/Zn disorder. (C) 2010 Elsevier B.V. All rights reserved. C1 [Peterson, Eric J.; Halevi, Barr; Kiefer, Boris; Spilde, Michael N.; Datye, Abhaya K.] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA. [Peterson, Eric J.; Halevi, Barr; Kiefer, Boris; Spilde, Michael N.; Datye, Abhaya K.] Univ New Mexico, Ctr Microengineered Mat, Albuquerque, NM 87131 USA. [Kiefer, Boris; Peterson, Joe; Nakotte, Heinz] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA. [Daemen, Luc; Llobet, Anna; Nakotte, Heinz] Los Alamos Natl Lab, Manuel Lujan Neutron Sci Ctr, Los Alamos, NM 87545 USA. RP Datye, AK (reprint author), Univ New Mexico, Dept Chem & Nucl Engn, MSCO1 1120, Albuquerque, NM 87131 USA. EM datye@unm.edu RI Llobet, Anna/B-1672-2010; Lujan Center, LANL/G-4896-2012; OI Datye, Abhaya/0000-0002-7126-8659 FU US Department of Energy [DE-FG02-05ER15712]; US Department of Energy, EPSCoR [DE-FG02-08ER46530]; Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory FX Financial support for this work was provided by the US Department of Energy, Grant DE-FG02-05ER15712. Additional support was provided by the US Department of Energy, EPSCoR Grant DE-FG02-08ER46530. We gratefully acknowledge computing resources provided by the New Mexico Computing Applications Center (NMCAC) on Encanto. A portion of the research was performed using EMSL, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. NR 35 TC 10 Z9 10 U1 3 U2 20 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 FEB 3 PY 2011 VL 509 IS 5 BP 1463 EP 1470 DI 10.1016/j.jallcom.2010.09.149 PG 8 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA 718ZY UT WOS:000287167700035 ER PT J AU Jarvis, MW Daily, JW Carstensen, HH Dean, AM Sharma, S Dayton, DC Robichaud, DJ Nimlos, MR AF Jarvis, Mark W. Daily, John W. Carstensen, Hans-Heinrich Dean, Anthony M. Sharma, Shantanu Dayton, David C. Robichaud, David J. Nimlos, Mark R. TI Direct Detection of Products from the Pyrolysis of 2-Phenethyl Phenyl Ether SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID INFRARED-ABSORPTION SPECTRA; GAS-PHASE ACIDITY; ETHYL VINYL ETHER; THERMAL-DECOMPOSITION; MATRIX-ISOLATION; DIETHYL-ETHER; ALLYL RADICALS; SHOCK-WAVES; LIGNIN; MODEL AB The pyrolysis of 2-phenethyl phenyl ether (PPE, C6H5C2H4OC6H5) in a hypertherrnal nozzle (300-1350 degrees C) was studied to determine the importance of concerted and homolytic unimolecular decomposition pathways. Short residence times (<100 mu s) and low concentrations in this reactor allowed the direct detection of the initial reaction products from thermolysis. Reactants, radicals, and most products were detected with photoionization (10.5 eV) time-of-flight mass spectrometry (PIMS). Detection of phenoxy radical, cyclopentadienyl radical, benzyl radical, and benzene suggest the formation of product by the homolytic scission of the C6H5C2H4-OC6H5 and C6H5CH2-CH2OC6H5 bonds. The detection of phenol and styrene suggests decomposition by a concerted reaction mechanism. Phenyl ethyl ether (PEE, C6H5OC2H5) Pyrolysis was also studied using PIMS and using cryogenic matrix-isolated infrared spectroscopy (matrix-IR). The results for PEE also indicate the presence of both homolytic bond breaking and concerted decomposition reactions. Quantum mechanical calculations using CBS-QB3 were conducted, and the results were used with transition state theory (TST) to estimate the rate constants for the different reaction pathways. The results are consistent with the experimental measurements and suggest that the concerted retro-ene and Maccoll reactions are dominant at low temperatures (below 1000 degrees C), whereas the contribution of the C6H5C2H4-OC6H5 homolytic bond scission reaction increases at higher temperatures (above 1000 degrees C). C1 [Jarvis, Mark W.; Robichaud, David J.; Nimlos, Mark R.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Daily, John W.] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA. [Carstensen, Hans-Heinrich; Dean, Anthony M.] Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA. [Sharma, Shantanu] CALTECH, Mat & Proc Simulat Ctr, Pasadena, CA 91125 USA. [Dayton, David C.] Res Triangle Inst, Res Triangle Pk, NC 27709 USA. RP Jarvis, MW (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. EM mark.jarvis@nrel.gov RI Dean, Anthony/A-8590-2009 FU U.S. Department of Energy [DE-AC36-99GO10337]; National Renewable Energy Laboratory FX This work was supported by the U.S. Department of Energy's Biomass Program, under Contract No. DE-AC36-99GO10337 with the National Renewable Energy Laboratory. We would like to thank Professor G. Barney Ellison, Angayle Vasiliou, and Adam M. Scheer, University of Colorado, and Calvin Mukarakate, National Renewable Energy Laboratory. NR 87 TC 51 Z9 54 U1 6 U2 55 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD FEB 3 PY 2011 VL 115 IS 4 BP 428 EP 438 DI 10.1021/jp1076356 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 712CD UT WOS:000286639300008 PM 21218825 ER PT J AU Whitley, VH Hooks, DE Ramos, KJ Pierce, TH O'Hara, JF Azad, AK Taylor, AJ Barber, J AF Whitley, Von H. Hooks, Daniel E. Ramos, Kyle J. Pierce, Timothy H. O'Hara, John F. Azad, Abul K. Taylor, Antoinette J. Barber, Jeffrey TI Orientation Dependent Far-Infrared Terahertz Absorptions in Single Crystal Pentaerythritol Tetranitrate (PETN) Using Terahertz Time-Domain Spectroscopy SO JOURNAL OF PHYSICAL CHEMISTRY A LA English DT Article ID NORMAL-MODES; EXPLOSIVES; SPECTRA AB Terahertz time-domain spectroscopy (THZ-TDS) has been used to measure the absorption spectra in the range 7-100 cm(-1) (0.2-3 THz) of single crystal pentaerythritol tetranitrate (PETN). Absorption was measured in transmission mode as a function of incident polarization with the incident and transmitted wave vectors oriented along the crystallographic directions [100], < 10(a/c)(2)>, and < 110 >. Samples were rotated with respect to the incident polarization while absorption was measured at both 300 and 20 K. Comparatively minor differences were observed among the three orientations. Two broad absorptions at 72 and >90 cm(-1), and several weaker absorptions at 36, 55, 80, and 82 cm(-1), have been observed at cryogenic temperatures. C1 [Whitley, Von H.; O'Hara, John F.; Azad, Abul K.; Taylor, Antoinette J.] Los Alamos Natl Lab, MST CINT, Los Alamos, NM 87545 USA. RP Whitley, VH (reprint author), Los Alamos Natl Lab, MST CINT, WX 9, Los Alamos, NM 87545 USA. EM VWhitley@lanl.gov OI Azad, Abul/0000-0002-7784-7432 FU Office of Naval Research; National Nuclear Security Administration of the U.S. Department of Energy [DE-AC52-06NA25396]; Department of Homeland Security [DTFACT-03-C-00042] FX This work was supported in part by the Office of Naval Research and was performed at Los Alamos National Laboratory, operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under contract DE-AC52-06NA25396. J.B. was supported in part by the Department of Homeland Security under contract DTFACT-03-C-00042. NR 22 TC 10 Z9 10 U1 2 U2 12 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1089-5639 J9 J PHYS CHEM A JI J. Phys. Chem. A PD FEB 3 PY 2011 VL 115 IS 4 BP 439 EP 442 DI 10.1021/jp108388c PG 4 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 712CD UT WOS:000286639300009 PM 21210684 ER PT J AU Dagel, DJ Liu, YS Zhong, LL Luo, YH Himmel, ME Xu, Q Zeng, YN Ding, SY Smith, S AF Dagel, Daryl J. Liu, Yu-San Zhong, Lanlan Luo, Yonghua Himmel, Michael E. Xu, Qi Zeng, Yining Ding, Shi-You Smith, Steve TI In Situ Imaging of Single Carbohydrate-Binding Modules on Cellulose Microfibrils SO JOURNAL OF PHYSICAL CHEMISTRY B LA English DT Article ID ORIENTATION; PROTEIN; SURFACE; IMAGES; DOMAIN AB The low efficiency of enzymes used in the bioprocessing of biomass for biofuels is one of the primary bottlenecks that must be overcome to make lignocellulosic biofuels cost-competitive. One of the rate-limiting factors is the accessibility of the cellulase enzymes to insoluble cellulolytic substrates, facilitated by surface absorption of the carbohydrate-binding modules (CBMs), a component of most cellulase systems. Despite their importance, reports of direct observation of CBM function and activity using microscopic methods are still uncommon. Here, we examine the site-specific binding of individual CBMs to crystalline cellulose in an aqueous environment, using the single molecule fluorescence method known as Defocused Orientation and Position Imaging (DOPI). Systematic orientations were observed that are consistent with the CBMs binding to the two opposite hydrophobic faces of the cellulose microfibril, with a well-defined orientation relative to the fiber axis. The approach provides in situ physical evidence indicating the CBMs bind with a well-defined orientation on those planes, thus supporting a binding mechanism driven by chemical and structural recognition of the cellulose surface. C1 [Liu, Yu-San; Luo, Yonghua; Himmel, Michael E.; Xu, Qi; Zeng, Yining; Ding, Shi-You] Natl Renewable Energy Lab, Biosci Ctr, Golden, CO 80401 USA. [Dagel, Daryl J.; Zhong, Lanlan; Smith, Steve] S Dakota Sch Mines & Technol, Rapid City, SD 57701 USA. [Liu, Yu-San; Himmel, Michael E.; Xu, Qi; Zeng, Yining; Ding, Shi-You] Oak Ridge Natl Lab, Bioenergy Sci Ctr, Oak Ridge, TN 37831 USA. RP Ding, SY (reprint author), Natl Renewable Energy Lab, Biosci Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. EM shi.you.ding@nrel.gov; steve.smith@sdsmt.edu RI Luo, Y/H-6294-2012; Ding, Shi-You/O-1209-2013 FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy Biomass through NREL [ZCO-7-77379-01]; National Science Foundation [DMR 0619890]; US DOE Office of Science, Office of Biological and Environmental Research, through the BioEnergy Science Center (BESC), a DOE Bioenergy Research Center FX This research was supported by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy Biomass Program through NREL subcontract ZCO-7-77379-01, by the National Science Foundation through award number DMR 0619890, and by the US DOE Office of Science, Office of Biological and Environmental Research, through the BioEnergy Science Center (BESC), a DOE Bioenergy Research Center. The authors acknowledge the 3D visualization and modeling efforts contributed by Thomas Smith. NR 28 TC 33 Z9 33 U1 4 U2 30 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1520-6106 J9 J PHYS CHEM B JI J. Phys. Chem. B PD FEB 3 PY 2011 VL 115 IS 4 BP 635 EP 641 DI 10.1021/jp109798p PG 7 WC Chemistry, Physical SC Chemistry GA 712CF UT WOS:000286639500004 PM 21162585 ER PT J AU Rascon, F Berthoud, R Wischert, R Lukens, W Coperet, C AF Rascon, Fernando Berthoud, Romain Wischert, Raphael Lukens, Wayne Coperet, Christophe TI Access to Well-Defined Ruthenium Mononuclear Species Grafted via a Si-Ru Bond on Silane Functionalized Silica SO JOURNAL OF PHYSICAL CHEMISTRY C LA English DT Article ID SURFACE ORGANOMETALLIC CHEMISTRY; C-H BOND; HETEROGENEOUS CATALYSTS; METATHESIS CATALYSTS; ZIRCONIUM HYDRIDES; NMR-SPECTROSCOPY; COMPLEXES; ACTIVATION; HYDROGEN; ALUMINA AB A functionalized silica with T(3) silane surface groups (i.e., ( SiO)(3)Si-H) was prepared and interacted with Ru(cod)(cot), resulting in the formation of monometallic surface species attached to the surface via a Si-Ru bond, according to EXAFS spectroscopy, infrared spectroscopy, and solid-state NMR. C1 [Rascon, Fernando; Berthoud, Romain; Wischert, Raphael; Coperet, Christophe] Univ Lyon, Inst Chim Lyon, ESCPE Lyon, C2P2, F-69616 Villeurbanne, France. [Lukens, Wayne] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Coperet, C (reprint author), Univ Lyon, Inst Chim Lyon, ESCPE Lyon, C2P2, 43 Bd 11 Novembre, F-69616 Villeurbanne, France. EM coperet@cpe.fr RI Rascon, Fernando/E-3265-2012 FU Agence National de la Recherche [ANR08-BL34507]; le Ministere de la Recherche et de l'Education; Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy (DOE) [DE-AC02-05CH11231] FX F.R. thanks Agence National de la Recherche for a postdoctoral fellowship. R.B. thanks le Ministere de la Recherche et de l'Education for a graduate fellowship. We thank the ANR for financial support (Grant No. ANR08-BL34507). We are also all grateful to CPE Lyon and IDECAT for financial support. Portions of this work were supported by Director, Office of Science, Office of Basic Energy Sciences of the U.S. Department of Energy (DOE) under Contract No. DE-AC02-05CH11231. Portions of this work were performed at the Stanford Synchrotron Radiation Laboratory, a national user facility operated by Stanford University on behalf of the DOE, Office of Basic Energy Sciences. NR 39 TC 2 Z9 2 U1 1 U2 20 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 FEB 3 PY 2011 VL 115 IS 4 BP 1150 EP 1155 DI 10.1021/jp1064962 PG 6 WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Chemistry; Science & Technology - Other Topics; Materials Science GA 712CE UT WOS:000286639400037 ER PT J AU Chapman, HN Fromme, P Barty, A White, TA Kirian, RA Aquila, A Hunter, MS Schulz, J DePonte, DP Weierstall, U Doak, RB Maia, FRNC Martin, AV Schlichting, I Lomb, L Coppola, N Shoeman, RL Epp, SW Hartmann, R Rolles, D Rudenko, A Foucar, L Kimmel, N Weidenspointner, G Holl, P Liang, MN Barthelmess, M Caleman, C Boutet, S Bogan, MJ Krzywinski, J Bostedt, C Bajt, S Gumprecht, L Rudek, B Erk, B Schmidt, C Homke, A Reich, C Pietschner, D Struder, L Hauser, G Gorke, H Ullrich, J Herrmann, S Schaller, G Schopper, F Soltau, H Kuhnel, KU Messerschmidt, M Bozek, JD Hau-Riege, SP Frank, M Hampton, CY Sierra, RG Starodub, D Williams, GJ Hajdu, J Timneanu, N Seibert, MM Andreasson, J Rocker, A Jonsson, O Svenda, M Stern, S Nass, K Andritschke, R Schroter, CD Krasniqi, F Bott, M Schmidt, KE Wang, XY Grotjohann, I Holton, JM Barends, TRM Neutze, R Marchesini, S Fromme, R Schorb, S Rupp, D Adolph, M Gorkhover, T Andersson, I Hirsemann, H Potdevin, G Graafsma, H Nilsson, B Spence, JCH AF Chapman, Henry N. Fromme, Petra Barty, Anton White, Thomas A. Kirian, Richard A. Aquila, Andrew Hunter, Mark S. Schulz, Joachim DePonte, Daniel P. Weierstall, Uwe Doak, R. Bruce Maia, Filipe R. N. C. Martin, Andrew V. Schlichting, Ilme Lomb, Lukas Coppola, Nicola Shoeman, Robert L. Epp, Sascha W. Hartmann, Robert Rolles, Daniel Rudenko, Artem Foucar, Lutz Kimmel, Nils Weidenspointner, Georg Holl, Peter Liang, Mengning Barthelmess, Miriam Caleman, Carl Boutet, Sebastien Bogan, Michael J. Krzywinski, Jacek Bostedt, Christoph Bajt, Sasa Gumprecht, Lars Rudek, Benedikt Erk, Benjamin Schmidt, Carlo Hoemke, Andre Reich, Christian Pietschner, Daniel Strueder, Lothar Hauser, Guenter Gorke, Hubert Ullrich, Joachim Herrmann, Sven Schaller, Gerhard Schopper, Florian Soltau, Heike Kuehnel, Kai-Uwe Messerschmidt, Marc Bozek, John D. Hau-Riege, Stefan P. Frank, Matthias Hampton, Christina Y. Sierra, Raymond G. Starodub, Dmitri Williams, Garth J. Hajdu, Janos Timneanu, Nicusor Seibert, M. Marvin Andreasson, Jakob Rocker, Andrea Joensson, Olof Svenda, Martin Stern, Stephan Nass, Karol Andritschke, Robert Schroeter, Claus-Dieter Krasniqi, Faton Bott, Mario Schmidt, Kevin E. Wang, Xiaoyu Grotjohann, Ingo Holton, James M. Barends, Thomas R. M. Neutze, Richard Marchesini, Stefano Fromme, Raimund Schorb, Sebastian Rupp, Daniela Adolph, Marcus Gorkhover, Tais Andersson, Inger Hirsemann, Helmut Potdevin, Guillaume Graafsma, Heinz Nilsson, Bjoern Spence, John C. H. TI Femtosecond X-ray protein nanocrystallography SO NATURE LA English DT Article ID RESOLUTION; DIFFRACTION; CRYSTALS; REFINEMENT; MICROSCOPY AB X-ray crystallography provides the vast majority of macromolecular structures, but the success of the method relies on growing crystals of sufficient size. In conventional measurements, the necessary increase in X-ray dose to record data from crystals that are too small leads to extensive damage before a diffraction signal can be recorded(1-3). It is particularly challenging to obtain large, well-diffracting crystals of membrane proteins, for which fewer than 300 unique structures have been determined despite their importance in all living cells. Here we present a method for structure determination where single-crystal X-ray diffraction 'snapshots' are collected from a fully hydrated stream of nanocrystals using femtosecond pulses from a hard-X-ray free-electron laser, the Linac Coherent Light Source(4). We prove this concept with nanocrystals of photosystem I, one of the largest membrane protein complexes(5). More than 3,000,000 diffraction patterns were collected in this study, and a three-dimensional data set was assembled from individual photosystem I nanocrystals (similar to 200 nm to 2 mm in size). We mitigate the problem of radiation damage in crystallography by using pulses briefer than the timescale of most damage processes(6). This offers a new approach to structure determination of macromolecules that do not yield crystals of sufficient size for studies using conventional radiation sources or are particularly sensitive to radiation damage. C1 [Chapman, Henry N.; Barty, Anton; White, Thomas A.; Aquila, Andrew; Schulz, Joachim; DePonte, Daniel P.; Martin, Andrew V.; Coppola, Nicola; Liang, Mengning; Caleman, Carl; Gumprecht, Lars; Stern, Stephan] DESY, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany. [Chapman, Henry N.; Nass, Karol] Univ Hamburg, D-22761 Hamburg, Germany. [Fromme, Petra; Hunter, Mark S.; Grotjohann, Ingo; Fromme, Raimund] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA. [Kirian, Richard A.; Weierstall, Uwe; Doak, R. Bruce; Schmidt, Kevin E.; Wang, Xiaoyu; Spence, John C. H.] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. [Maia, Filipe R. N. C.; Hajdu, Janos; Timneanu, Nicusor; Seibert, M. Marvin; Andreasson, Jakob; Rocker, Andrea; Joensson, Olof; Svenda, Martin] Uppsala Univ, Dept Cell & Mol Biol, Lab Mol Biophys, SE-75124 Uppsala, Sweden. [Schlichting, Ilme; Epp, Sascha W.; Rolles, Daniel; Rudenko, Artem; Foucar, Lutz; Rudek, Benedikt; Erk, Benjamin; Schmidt, Carlo; Hoemke, Andre; Strueder, Lothar; Ullrich, Joachim; Krasniqi, Faton] Max Planck Adv Study Grp, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany. [Schlichting, Ilme; Lomb, Lukas; Shoeman, Robert L.; Rolles, Daniel; Foucar, Lutz; Krasniqi, Faton; Bott, Mario; Barends, Thomas R. M.] Max Planck Inst Med Res, D-69120 Heidelberg, Germany. [Epp, Sascha W.; Rudenko, Artem; Rudek, Benedikt; Erk, Benjamin; Schmidt, Carlo; Hoemke, Andre; Ullrich, Joachim; Kuehnel, Kai-Uwe; Schroeter, Claus-Dieter] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany. [Hartmann, Robert; Holl, Peter; Reich, Christian; Soltau, Heike] PNSensor GmbH, D-81739 Munich, Germany. [Kimmel, Nils; Weidenspointner, Georg; Pietschner, Daniel; Strueder, Lothar; Hauser, Guenter; Herrmann, Sven; Schaller, Gerhard; Schopper, Florian; Andritschke, Robert] Max Planck Inst Halbleiterlab, D-81739 Munich, Germany. [Weidenspointner, Georg] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany. [Boutet, Sebastien; Krzywinski, Jacek; Bostedt, Christoph; Messerschmidt, Marc; Bozek, John D.; Williams, Garth J.] SLAC Natl Accelerator Lab, LCLS, Menlo Pk, CA 94025 USA. [Bogan, Michael J.; Hampton, Christina Y.; Sierra, Raymond G.; Starodub, Dmitri] SLAC Natl Accelerator Lab, PULSE Inst, Menlo Pk, CA 94025 USA. [Gorke, Hubert] Forschungszentrum Julich, Inst ZEL, D-52425 Julich, Germany. [Hau-Riege, Stefan P.; Frank, Matthias] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Holton, James M.; Marchesini, Stefano] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Neutze, Richard] Univ Gothenburg, Dept Chem Biochem & Biophys, SE-40530 Gothenburg, Sweden. [Schorb, Sebastian; Rupp, Daniela; Adolph, Marcus; Gorkhover, Tais] Tech Univ Berlin, Inst Opt & Atomare Phys, D-10623 Berlin, Germany. [Andersson, Inger] Swedish Univ Agr Sci, Uppsala Biomed Ctr, Dept Mol Biol, S-75124 Uppsala, Sweden. RP Chapman, HN (reprint author), DESY, Ctr Free Electron Laser Sci, Notkestr 85, D-22607 Hamburg, Germany. EM henry.chapman@desy.de RI Chapman, Henry/G-2153-2010; Williams, Garth/H-1606-2012; Bogan, Mike/I-6962-2012; Rudenko, Artem/C-7412-2009; Messerschmidt, Marc/F-3796-2010; Weierstall, Uwe/B-3568-2011; Nass, Karol/K-1970-2012; Gorkhover, Tais/K-8468-2012; Schlichting, Ilme/I-1339-2013; Marchesini, Stefano/A-6795-2009; Bajt, Sasa/G-2228-2010; Timneanu, Nicusor/C-7691-2012; Neutze, Richard/A-7573-2010; Kirian, Richard/M-3750-2013; Rocha Neves Couto Maia, Filipe/C-3146-2014; Fromme, Raimund/C-8885-2012; Bozek, John/E-9260-2010; Barty, Anton/K-5137-2014; Frank, Matthias/O-9055-2014; Rupp, Daniela/P-7590-2016; Rudek, Benedikt/A-5100-2017; OI Chapman, Henry/0000-0002-4655-1743; Bogan, Mike/0000-0001-9318-3333; Rudenko, Artem/0000-0002-9154-8463; Messerschmidt, Marc/0000-0002-8641-3302; Timneanu, Nicusor/0000-0001-7328-0400; Neutze, Richard/0000-0003-0986-6153; Rocha Neves Couto Maia, Filipe/0000-0002-2141-438X; Fromme, Raimund/0000-0003-4835-1080; Bozek, John/0000-0001-7486-7238; Barty, Anton/0000-0003-4751-2727; graafsma, heinz/0000-0003-2304-667X; MARTIN, ANDREW/0000-0003-3704-1829; Epp, Sascha/0000-0001-6366-9113; Kirian, Richard/0000-0001-7197-3086 FU DOE through the PULSE Institute at the SLAC National Accelerator Laboratory; Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; Center for Bio-Inspired Solar Fuel Production; DOE, Office of Basic Energy Sciences [DE-SC0001016]; Hamburg Ministry of Science and Research; Joachim Herz Stiftung; Hamburg Initiative for Excellence in Research (LEXI); Hamburg School for Structure and Dynamics; Max Planck Society; US National Science Foundation [0417142, MCB-1021557]; US National Institutes of Health [1R01GM095583-01, 1U54GM094625-01]; Swedish Research Council; Swedish Foundation for International Cooperation in Research and Higher Education; Stiftelsen Olle Engkvist Byggmastare; DFG Cluster of Excellence at the Munich Centre for Advanced Photonics; CBST at the University of California [PHY 0120999] FX Experiments were carried out at the Linac Coherent Light Source and the Advanced Light Source, both National User Facilities operated respectively by Stanford University and the University of California on behalf of the US Department of Energy (DOE), Office of Basic Energy Sciences. We acknowledge support from the DOE through the PULSE Institute at the SLAC National Accelerator Laboratory; the Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344; the Center for Bio-Inspired Solar Fuel Production, an Energy Frontier Research Center funded by the DOE, Office of Basic Energy Sciences (award DE-SC0001016); the Hamburg Ministry of Science and Research and the Joachim Herz Stiftung, as part of the Hamburg Initiative for Excellence in Research (LEXI); the Hamburg School for Structure and Dynamics; the Max Planck Society, for funding the development and operation of the CAMP instrument within the ASG at CFEL; the US National Science Foundation (awards 0417142 and MCB-1021557); the US National Institutes of Health (awards 1R01GM095583-01 (ROADMAP) and 1U54GM094625-01 (PSI: Biology)); the Swedish Research Council; the Swedish Foundation for International Cooperation in Research and Higher Education; Stiftelsen Olle Engkvist Byggmastare; the DFG Cluster of Excellence at the Munich Centre for Advanced Photonics; and the CBST at the University of California under cooperative agreement no. PHY 0120999. We acknowledge discussions with M. Rossmann, E. Snell, R. Stroud and A. Brunger, thank B. Hedman, E. Gullikson, F. Filsinger, A. Berg, H. Mahn and C. Kaiser for technical help and thank the staff of the LCLS for their support in carrying out these experiments. NR 35 TC 748 Z9 759 U1 32 U2 375 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD FEB 3 PY 2011 VL 470 IS 7332 BP 73 EP U81 DI 10.1038/nature09750 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 715LQ UT WOS:000286886400036 PM 21293373 ER PT J AU Seibert, MM Ekeberg, T Maia, FRNC Svenda, M Andreasson, J Jonsson, O Odic, D Iwan, B Rocker, A Westphal, D Hantke, M DePonte, DP Barty, A Schulz, J Gumprecht, L Coppola, N Aquila, A Liang, MN White, TA Martin, A Caleman, C Stern, S Abergel, C Seltzer, V Claverie, JM Bostedt, C Bozek, JD Boutet, S Miahnahri, AA Messerschmidt, M Krzywinski, J Williams, G Hodgson, KO Bogan, MJ Hampton, CY Sierra, RG Starodub, D Andersson, I Bajt, S Barthelmess, M Spence, JCH Fromme, P Weierstall, U Kirian, R Hunter, M Doak, RB Marchesini, S Hau-Riege, SP Frank, M Shoeman, RL Lomb, L Epp, SW Hartmann, R Rolles, D Rudenko, A Schmidt, C Foucar, L Kimmel, N Holl, P Rudek, B Erk, B Homke, A Reich, C Pietschner, D Weidenspointner, G Struder, L Hauser, G Gorke, H Ullrich, J Schlichting, I Herrmann, S Schaller, G Schopper, F Soltau, H Kuhnel, KU Andritschke, R Schroter, CD Krasniqi, F Bott, M Schorb, S Rupp, D Adolph, M Gorkhover, T Hirsemann, H Potdevin, G Graafsma, H Nilsson, B Chapman, HN Hajdu, J AF Seibert, M. Marvin Ekeberg, Tomas Maia, Filipe R. N. C. Svenda, Martin Andreasson, Jakob Joensson, Olof Odic, Dusko Iwan, Bianca Rocker, Andrea Westphal, Daniel Hantke, Max DePonte, Daniel P. Barty, Anton Schulz, Joachim Gumprecht, Lars Coppola, Nicola Aquila, Andrew Liang, Mengning White, Thomas A. Martin, Andrew Caleman, Carl Stern, Stephan Abergel, Chantal Seltzer, Virginie Claverie, Jean-Michel Bostedt, Christoph Bozek, John D. Boutet, Sebastien Miahnahri, A. Alan Messerschmidt, Marc Krzywinski, Jacek Williams, Garth Hodgson, Keith O. Bogan, Michael J. Hampton, Christina Y. Sierra, Raymond G. Starodub, Dmitri Andersson, Inger Bajt, Sasa Barthelmess, Miriam Spence, John C. H. Fromme, Petra Weierstall, Uwe Kirian, Richard Hunter, Mark Doak, R. Bruce Marchesini, Stefano Hau-Riege, Stefan P. Frank, Matthias Shoeman, Robert L. Lomb, Lukas Epp, Sascha W. Hartmann, Robert Rolles, Daniel Rudenko, Artem Schmidt, Carlo Foucar, Lutz Kimmel, Nils Holl, Peter Rudek, Benedikt Erk, Benjamin Hoemke, Andre Reich, Christian Pietschner, Daniel Weidenspointner, Georg Strueder, Lothar Hauser, Guenter Gorke, Hubert Ullrich, Joachim Schlichting, Ilme Herrmann, Sven Schaller, Gerhard Schopper, Florian Soltau, Heike Kuehnel, Kai-Uwe Andritschke, Robert Schroeter, Claus-Dieter Krasniqi, Faton Bott, Mario Schorb, Sebastian Rupp, Daniela Adolph, Marcus Gorkhover, Tais Hirsemann, Helmut Potdevin, Guillaume Graafsma, Heinz Nilsson, Bjoern Chapman, Henry N. Hajdu, Janos TI Single mimivirus particles intercepted and imaged with an X-ray laser SO NATURE LA English DT Article ID FREE-ELECTRON LASER; DIFFRACTION MICROSCOPY; VIROPHAGE AB X-ray lasers offer new capabilities in understanding the structure of biological systems, complex materials and matter under extreme conditions(1-4). Very short and extremely bright, coherent X-ray pulses can be used to outrun key damage processes and obtain a single diffraction pattern from a large macromolecule, a virus or a cell before the sample explodes and turns into plasma(1). The continuous diffraction pattern of non-crystalline objects permits oversampling and direct phase retrieval(2). Here we show that high-quality diffraction data can be obtained with a single X-ray pulse from a noncrystalline biological sample, a single mimivirus particle, which was injected into the pulsed beam of a hard-X-ray free-electron laser, the Linac Coherent Light Source(5). Calculations indicate that the energy deposited into the virus by the pulse heated the particle to over 100,000 K after the pulse had left the sample. The reconstructed exit wavefront (image) yielded 32-nm full-period resolution in a single exposure and showed no measurable damage. The reconstruction indicates inhomogeneous arrangement of dense material inside the virion. We expect that significantly higher resolutions will be achieved in such experiments with shorter and brighter photon pulses focused to a smaller area. The resolution in such experiments can be further extended for samples available in multiple identical copies. C1 [Seibert, M. Marvin; Ekeberg, Tomas; Maia, Filipe R. N. C.; Svenda, Martin; Andreasson, Jakob; Joensson, Olof; Odic, Dusko; Iwan, Bianca; Rocker, Andrea; Westphal, Daniel; Hantke, Max; Caleman, Carl; Hajdu, Janos] Uppsala Univ, Dept Cell & Mol Biol, Lab Mol Biophys, SE-75124 Uppsala, Sweden. [DePonte, Daniel P.; Barty, Anton; Schulz, Joachim; Gumprecht, Lars; Coppola, Nicola; Aquila, Andrew; Liang, Mengning; White, Thomas A.; Martin, Andrew; Caleman, Carl; Stern, Stephan; Chapman, Henry N.] DESY, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany. [Stern, Stephan; Chapman, Henry N.] Univ Hamburg, D-22607 Hamburg, Germany. [Abergel, Chantal; Seltzer, Virginie; Claverie, Jean-Michel] Aix Marseille Univ, CNRS, UPR2589, Inst Microbiol & Mediterranee, F-13288 Marseille 9, France. [Bostedt, Christoph; Bozek, John D.; Boutet, Sebastien; Miahnahri, A. Alan; Messerschmidt, Marc; Krzywinski, Jacek; Williams, Garth] SLAC Natl Accelerator Lab, LCLS, Menlo Pk, CA 94025 USA. [Hodgson, Keith O.; Bogan, Michael J.; Hampton, Christina Y.; Sierra, Raymond G.; Starodub, Dmitri] SLAC Natl Accelerator Lab, PULSE Inst, Menlo Pk, CA 94025 USA. [Andersson, Inger] Swedish Univ Agr Sci, Uppsala Biomed Ctr, Dept Mol Biol, S-75124 Uppsala, Sweden. [Spence, John C. H.; Weierstall, Uwe; Kirian, Richard; Doak, R. Bruce] Arizona State Univ, Dept Phys, PSF470, Tempe, AZ 85287 USA. [Fromme, Petra; Hunter, Mark] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA. [Marchesini, Stefano] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Hau-Riege, Stefan P.; Frank, Matthias] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Shoeman, Robert L.; Lomb, Lukas; Rolles, Daniel; Foucar, Lutz; Schlichting, Ilme; Krasniqi, Faton; Bott, Mario] Max Planck Inst Med Res, D-69120 Heidelberg, Germany. [Epp, Sascha W.; Rolles, Daniel; Rudenko, Artem; Schmidt, Carlo; Foucar, Lutz; Rudek, Benedikt; Erk, Benjamin; Hoemke, Andre; Strueder, Lothar; Ullrich, Joachim; Schlichting, Ilme; Krasniqi, Faton] Max Planck Adv Study Grp, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany. [Epp, Sascha W.; Rudenko, Artem; Schmidt, Carlo; Rudek, Benedikt; Erk, Benjamin; Hoemke, Andre; Ullrich, Joachim; Kuehnel, Kai-Uwe; Schroeter, Claus-Dieter] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany. [Hartmann, Robert; Holl, Peter; Reich, Christian; Soltau, Heike] PNSensor GmbH, D-80803 Munich, Germany. [Kimmel, Nils; Pietschner, Daniel; Weidenspointner, Georg; Strueder, Lothar; Hauser, Guenter; Herrmann, Sven; Schaller, Gerhard; Schopper, Florian; Andritschke, Robert] Max Planck Inst Halbleiterlab, D-81739 Munich, Germany. [Kimmel, Nils; Pietschner, Daniel; Weidenspointner, Georg; Strueder, Lothar; Hauser, Guenter; Herrmann, Sven; Schaller, Gerhard; Schopper, Florian; Andritschke, Robert] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany. [Strueder, Lothar] Univ Siegen, D-57068 Siegen, Germany. [Gorke, Hubert] Forschungszentrum Julich, Inst ZEL, D-52425 Julich, Germany. [Schorb, Sebastian; Rupp, Daniela; Adolph, Marcus; Gorkhover, Tais] Tech Univ Berlin, Inst Opt & Atomare Phys, D-10623 Berlin, Germany. RP Hajdu, J (reprint author), Uppsala Univ, Dept Cell & Mol Biol, Lab Mol Biophys, Husargatan 3,Box 596, SE-75124 Uppsala, Sweden. EM chantal.abergel@igs.cnrs-mrs.fr; janos.hajdu@xray.bmc.uu.se RI Barty, Anton/K-5137-2014; Frank, Matthias/O-9055-2014; Rupp, Daniela/P-7590-2016; Rudek, Benedikt/A-5100-2017; Rudenko, Artem/C-7412-2009; Williams, Garth/H-1606-2012; Bogan, Mike/I-6962-2012; Gorkhover, Tais/K-8468-2012; Schlichting, Ilme/I-1339-2013; Kirian, Richard/M-3750-2013; Rocha Neves Couto Maia, Filipe/C-3146-2014; Bozek, John/E-9260-2010; Chapman, Henry/G-2153-2010; Messerschmidt, Marc/F-3796-2010; Weierstall, Uwe/B-3568-2011; Marchesini, Stefano/A-6795-2009; Bajt, Sasa/G-2228-2010 OI Barty, Anton/0000-0003-4751-2727; Abergel, Chantal/0000-0003-1875-4049; graafsma, heinz/0000-0003-2304-667X; MARTIN, ANDREW/0000-0003-3704-1829; Epp, Sascha/0000-0001-6366-9113; Claverie, jean-michel/0000-0003-1424-0315; Kirian, Richard/0000-0001-7197-3086; Rudenko, Artem/0000-0002-9154-8463; Bogan, Mike/0000-0001-9318-3333; Rocha Neves Couto Maia, Filipe/0000-0002-2141-438X; Bozek, John/0000-0001-7486-7238; Chapman, Henry/0000-0002-4655-1743; Messerschmidt, Marc/0000-0002-8641-3302; FU Swedish Research Councils; Swedish Foundation for International Cooperation in Research and Higher Education; Stiftelsen Olle Engkvist Byggmastare; Swedish University of Agricultural Sciences; Helmholtz Association [VH-VI-302]; DFG Cluster of Excellence at the Munich Centre for Advanced Photonics; Centre National de la Recherche Scientifique; Agence Nationale de la Recherche [ANR-BLAN08-0089]; Hamburg Ministry of Science and Research; Hamburg School for Structure and Dynamics; Max Planck Society; US National Science Foundation [MCB 0919195, MCB-1021557]; US Department of Energy through the PULSE Institute; Joachim Herz Stiftung, Hamburg Initiative for Excellence in Research (LEXI) FX This work was supported by the following agencies: the Swedish Research Councils; the Swedish Foundation for International Cooperation in Research and Higher Education; Stiftelsen Olle Engkvist Byggmastare; the Swedish University of Agricultural Sciences; the Helmholtz Association (VH-VI-302); the DFG Cluster of Excellence at the Munich Centre for Advanced Photonics; the Centre National de la Recherche Scientifique; Agence Nationale de la Recherche (ANR-BLAN08-0089); the Hamburg Ministry of Science and Research and Joachim Herz Stiftung, as part of the Hamburg Initiative for Excellence in Research (LEXI); the Hamburg School for Structure and Dynamics; the Max Planck Society, the US National Science Foundation (grants MCB 0919195 and MCB-1021557); and the US Department of Energy, through the PULSE Institute. Portions of this research were carried out at the Linac Coherent Light Source, a National User Facility operated by Stanford University on behalf of the US Department of Energy, Office of Basic Energy Sciences. We are grateful to B. Hedman and N. Timneanu for their help and to the scientific and technical staff of the LCLS for their outstanding facility and support. NR 33 TC 384 Z9 393 U1 8 U2 165 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 0028-0836 J9 NATURE JI Nature PD FEB 3 PY 2011 VL 470 IS 7332 BP 78 EP U86 DI 10.1038/nature09748 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 715LQ UT WOS:000286886400037 PM 21293374 ER PT J AU Aaltonen, T Gonzalez, BA Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, JA Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, VE Barnett, BA Barria, P Bartos, P Bauce, M Bauer, G Bedeschi, F Beecher, D Behari, S Bellettini, G Bellinger, J Benjamin, D Beretvas, A Bhatti, A Binkley, M Bisello, D Bizjak, I Bland, KR Blumenfeld, B Bocci, A Bodek, A Bortoletto, D Boudreau, J Boveia, A Brau, B Brigliadori, L Brisuda, A Bromberg, C Brucken, E Bucciantonio, M Budagov, J Budd, HS Budd, S Burkett, K Busetto, G Bussey, P Buzatu, A Calancha, 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Wilson, J. S. Wilson, P. Winer, B. L. Wittich, P. Wolbers, S. Wolfe, H. Wright, T. Wu, X. Wu, Z. Yamamoto, K. Yamaoka, J. Yang, T. Yang, U. K. Yang, Y. C. Yao, W. -M. Yeh, G. P. Yi, K. Yoh, J. Yorita, K. Yoshida, T. Yu, G. B. Yu, I. Yu, S. S. Yun, J. C. Zanetti, A. Zeng, Y. Zucchelli, S. CA CDF Collaboration TI Search for a new heavy gauge boson W' with event signature electron plus missing transverse energy in p(p)over-bar collisions at root s=1.96 TeV SO PHYSICAL REVIEW D LA English DT Article ID LEFT-RIGHT SYMMETRY; VIOLATION; PARITY AB We present a search for a new heavy charged vector boson W' decaying to an electron- neutrino pair in p (p) over bar collisions at a center-of-mass energy of 1.96 TeV. The data were collected with the CDF II detector and correspond to an integrated luminosity of 5: 3 fb(-1). No significant excess above the standard model expectation is observed and we set upper limits on sigma . B(W' -> e nu). 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RP Aaltonen, T (reprint author), Univ Helsinki, Div High Energy Phys, Dept Phys, FIN-00014 Helsinki, Finland. RI Punzi, Giovanni/J-4947-2012; Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; Zeng, Yu/C-1438-2013; Annovi, Alberto/G-6028-2012; Ivanov, Andrew/A-7982-2013; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; St.Denis, Richard/C-8997-2012; manca, giulia/I-9264-2012; Amerio, Silvia/J-4605-2012; Lysak, Roman/H-2995-2014; Piacentino, Giovanni/K-3269-2015; Martinez Ballarin, Roberto/K-9209-2015; Gorelov, Igor/J-9010-2015; Prokoshin, Fedor/E-2795-2012; Canelli, Florencia/O-9693-2016; Moon, Chang-Seong/J-3619-2014; Scodellaro, Luca/K-9091-2014; Grinstein, Sebastian/N-3988-2014; Paulini, Manfred/N-7794-2014; Russ, James/P-3092-2014; unalan, zeynep/C-6660-2015; Lazzizzera, Ignazio/E-9678-2015; vilar, rocio/P-8480-2014; Garcia, Jose /H-6339-2015; Cavalli-Sforza, Matteo/H-7102-2015; ciocci, maria agnese /I-2153-2015; Chiarelli, Giorgio/E-8953-2012; Introzzi, Gianluca/K-2497-2015 OI Punzi, Giovanni/0000-0002-8346-9052; Ruiz, Alberto/0000-0002-3639-0368; Annovi, Alberto/0000-0002-4649-4398; Ivanov, Andrew/0000-0002-9270-5643; Warburton, Andreas/0000-0002-2298-7315; Piacentino, Giovanni/0000-0001-9884-2924; Martinez Ballarin, Roberto/0000-0003-0588-6720; Gorelov, Igor/0000-0001-5570-0133; Prokoshin, Fedor/0000-0001-6389-5399; Canelli, Florencia/0000-0001-6361-2117; Moon, Chang-Seong/0000-0001-8229-7829; Scodellaro, Luca/0000-0002-4974-8330; Grinstein, Sebastian/0000-0002-6460-8694; Paulini, Manfred/0000-0002-6714-5787; Russ, James/0000-0001-9856-9155; unalan, zeynep/0000-0003-2570-7611; Lazzizzera, Ignazio/0000-0001-5092-7531; ciocci, maria agnese /0000-0003-0002-5462; Chiarelli, Giorgio/0000-0001-9851-4816; Introzzi, Gianluca/0000-0002-1314-2580 FU U.S. Department of Energy; National Science Foundation; Italian Istituto Nazionale di Fisica Nucleare; Ministry of Education, Culture, Sports, Science and Technology of Japan; Natural Sciences and Engineering Research Council of Canada; National Science Council of the Republic of China; Swiss National Science Foundation; A.P. Sloan Foundation; Bundesministerium fur Balduin Una Forschung, Germany; World Class University; National Research Foundation of Korea; Science and Technology Facilities Council; Royal Society, United Kingdom; Institut National de Physique Nucleaire et Physique des Particules/CNRS; Universite Pierre et Marie Curie; Russian Foundation for Basic Research; Ministerio de Ciencia e Innovacion; Programa Consolider-Ingenio, Spain; Slovak RD Agency; Academy of Finland FX We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Bundesministerium fur Balduin Una Forschung, Germany; the World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, United Kingdom; the Institut National de Physique Nucleaire et Physique des Particules/CNRS and Universite Pierre et Marie Curie; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and the Academy of Finland. NR 23 TC 22 Z9 22 U1 2 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 3 PY 2011 VL 83 IS 3 AR 031102 DI 10.1103/PhysRevD.83.031102 PG 8 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 716OG UT WOS:000286982700001 ER PT J AU Sanchez, PD Lees, JP Poireau, V Prencipe, E Tisserand, V Tico, JG Grauges, E Martinelli, M Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Battaglia, M Brown, DN Hooberman, B Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Tanabe, T Hawkes, CM Watson, AT Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA Khan, A Randle-Conde, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Bondioli, M Curry, S Kirkby, D Lankford, AJ Mandelkern, M Martin, EC Stoker, DP Atmacan, H Gary, JW Liu, F Long, O Vitug, GM Campagnari, C Hong, TM Kovalskyi, D Richman, JD West, C Eisner, AM Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Winstrom, LO Cheng, CH Doll, DA Echenard, B Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Dubrovin, MS Mancinelli, G Meadows, BT Sokoloff, MD Bloom, PC Ford, WT Gaz, A Nagel, M Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Jasper, H Karbach, TM Merkel, J Petzold, A Spaan, B Wacker, K Kobel, MJ Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Fioravanti, E Franchini, P Luppi, E Munerato, M Negrini, M Petrella, A Piemontese, L Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Nicolaci, M Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Tosi, S Bhuyan, B Prasad, V Lee, CL Morii, M Adametz, A Marks, J Uwer, U Bernlochner, FU Ebert, M Lacker, HM Lueck, T Volk, A Dauncey, PD Tibbetts, M Behera, PK Mallik, U Chen, C Cochran, J Crawley, HB Dong, L Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gritsan, AV 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CA BaBar Collaboration TI Measurement of the B -> (D)over-bar(()*()) D-(*()) K branching fractions SO PHYSICAL REVIEW D LA English DT Article ID DECAYS; DETECTOR; PHYSICS AB We present a measurement of the branching fractions of the 22 decay channels of the B-0 and B+ mesons to (D) over bar (()*()) D-(*()) K, where the D-(*()) and (D) over bar (()*()) mesons are fully reconstructed. Summing the 10 neutral modes and the 12 charged modes, the branching fractions are found to be B(B-0 -> (D) over bar (()*()) D-(*()) K) = (3.68 +/- 0.10 +/- 0.24)% and B(B+ -> (D) over bar (()*()) D-(*()) K) = (4.05 +/- 0.11 +/- 0.28)%, where the first uncertainties are statistical and the second systematic. The results are based on 429 fb(-1) of data containing 471 X 10(6)B (B) over bar pairs collected at the Y(4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. C1 [Sanchez, P. del Amo; Lees, J. 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F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Sevilla, M. Franco; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Marsiske, H.; Muller, D. R.; Neal, H.; Nelson, S.; O'Grady, C. P.; Ofte, I.; Perl, M.; Pulliam, T.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Santoro, V.; Schindler, R. H.; Schwiening, J.; Snyder, A.; Su, D.; Sullivan, M. K.; Sun, S.; Suzuki, K.; Thompson, J. M.; Va'vra, J.; Wagner, A. P.; Weaver, M.; West, C. A.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Yarritu, A. K.; Young, C. C.; Ziegler, V.] SLAC Natl Accelerator Lab, Stanford, CA 94309 USA. [Chen, X. R.; Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.] Univ S Carolina, Columbia, SC 29208 USA. [Sekula, S. J.] So Methodist Univ, Dallas, TX 75275 USA. [Bellis, M.; Burchat, P. R.; Edwards, A. J.; Miyashita, T. S.] Stanford Univ, Stanford, CA 94305 USA. [Ahmed, S.; Alam, M. S.; Ernst, J. A.; Pan, B.; Saeed, M. A.; Zain, S. B.] SUNY Albany, Albany, NY 12222 USA. [Guttman, N.; Soffer, A.] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel. [Lund, P.; Spanier, S. M.] Univ Tennessee, Knoxville, TN 37996 USA. [Eckmann, R.; Ritchie, J. L.; Ruland, A. M.; Schilling, C. J.; Schwitters, R. F.; Wray, B. C.] Univ Texas Austin, Austin, TX 78712 USA. [Izen, J. M.; Lou, X. C.] Univ Texas Dallas, Richardson, TX 75083 USA. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy. [Bianchi, F.; Gamba, D.; Pelliccioni, M.] Univ Turin, Dipartimento Fis Sperimentale, I-10125 Turin, Italy. [Bomben, M.; Lanceri, L.; Vitale, L.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy. [Bomben, M.; Lanceri, L.; Vitale, L.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy. [Lopez-March, N.; Martinez-Vidal, F.; Milanes, D. A.; Oyanguren, A.] Univ Valencia, CSIC, IFIC, E-46071 Valencia, Spain. [Albert, J.; Banerjee, Sw.; Choi, H. H. F.; Hamano, K.; King, G. J.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Latham, T. E.; Puccio, E. M. T.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Dasu, S.; Flood, K. T.; Pan, Y.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RP Sanchez, PD (reprint author), Univ Savoie, LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. RI 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; Stracka, Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Negrini, Matteo/C-8906-2014; Patrignani, Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014; Luppi, Eleonora/A-4902-2015; White, Ryan/E-2979-2015; Calabrese, Roberto/G-4405-2015; Neri, Nicola/G-3991-2012; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012 OI 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; Stracka, Simone/0000-0003-0013-4714; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Raven, Gerhard/0000-0002-2897-5323; Negrini, Matteo/0000-0003-0101-6963; Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300; Luppi, Eleonora/0000-0002-1072-5633; White, Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400; Neri, Nicola/0000-0002-6106-3756; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255 FU SLAC; US Department of Energy; National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique; Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung; Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway; Ministry of Education and Science of the Russian Federation; Ministerio de Ciencia e Innovacion (Spain); Science and Technology Facilities Council (United Kingdom); European Union; A.P. Sloan Foundation (U.S.); Binational Science Foundation (U.S.-Israel) FX We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the US Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union), the A.P. Sloan Foundation (U.S.) and the Binational Science Foundation (U.S.-Israel). NR 27 TC 8 Z9 8 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 3 PY 2011 VL 83 IS 3 AR 032004 DI 10.1103/PhysRevD.83.032004 PG 16 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 716OG UT WOS:000286982700003 ER PT J AU Yuh, HY Kaye, SM Levinton, FM Mazzucato, E Mikkelsen, DR Smith, DR Bell, RE Hosea, JC LeBlanc, BP Peterson, JL Park, HK Lee, W AF Yuh, H. Y. Kaye, S. M. Levinton, F. M. Mazzucato, E. Mikkelsen, D. R. Smith, D. R. Bell, R. E. Hosea, J. C. LeBlanc, B. P. Peterson, J. L. Park, H. K. Lee, W. TI Suppression of Electron Temperature Gradient Turbulence via Negative Magnetic Shear in NSTX SO PHYSICAL REVIEW LETTERS LA English DT Article ID CONFINEMENT; DISCHARGES; SCATTERING; TRANSPORT AB Negative magnetic shear is found to suppress electron turbulence and improve electron thermal transport for plasmas in the National Spherical Torus Experiment (NSTX). Sufficiently negative magnetic shear results in a transition out of a stiff profile regime. Density fluctuation measurements from high-k microwave scattering are verified to be the electron temperature gradient (ETG) mode by matching measured rest frequency and linear growth rate to gyrokinetic calculations. Fluctuation suppression under negligible E x B shear conditions confirm that negative magnetic shear alone is sufficient for ETG suppression. Measured electron temperature gradients can significantly exceed ETG critical gradients with ETG mode activity reduced to intermittent bursts, while electron thermal diffusivity improves to below 0.1 electron gyro-Bohms. C1 [Yuh, H. Y.; Levinton, F. M.] Nova Photon Inc, Princeton, NJ 08540 USA. [Kaye, S. M.; Mazzucato, E.; Mikkelsen, D. R.; Bell, R. E.; Hosea, J. C.; LeBlanc, B. P.; Peterson, J. L.] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. [Smith, D. R.] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA. [Park, H. K.; Lee, W.] POSTECH, Pohang 790784, South Korea. RP Yuh, HY (reprint author), Nova Photon Inc, Princeton, NJ 08540 USA. EM hyuh@pppl.gov NR 16 TC 20 Z9 20 U1 1 U2 10 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 FEB 3 PY 2011 VL 106 IS 5 AR 055003 DI 10.1103/PhysRevLett.106.055003 PG 4 WC Physics, Multidisciplinary SC Physics GA 716PN UT WOS:000286986000003 PM 21405404 ER PT J AU Morris, JJ Johnson, ZI Szul, MJ Keller, M Zinser, ER AF Morris, J. Jeffrey Johnson, Zackary I. Szul, Martin J. Keller, Martin Zinser, Erik R. TI Dependence of the Cyanobacterium Prochlorococcus on Hydrogen Peroxide Scavenging Microbes for Growth at the Ocean's Surface SO PLOS ONE LA English DT Article ID OXIDATIVE STRESS RESISTANCE; CENTRAL ATLANTIC-OCEAN; SOUTH-PACIFIC OCEAN; MARINE CYANOBACTERIUM; NATURAL-WATERS; PHOTOCHEMICAL FORMATION; ESCHERICHIA-COLI; IRON SPECIATION; SARGASSO SEA; IN-VIVO AB The phytoplankton community in the oligotrophic open ocean is numerically dominated by the cyanobacterium Prochlorococcus, accounting for approximately half of all photosynthesis. In the illuminated euphotic zone where Prochlorococcus grows, reactive oxygen species are continuously generated via photochemical reactions with dissolved organic matter. However, Prochlorococcus genomes lack catalase and additional protective mechanisms common in other aerobes, and this genus is highly susceptible to oxidative damage from hydrogen peroxide (HOOH). In this study we showed that the extant microbial community plays a vital, previously unrecognized role in cross-protecting Prochlorococcus from oxidative damage in the surface mixed layer of the oligotrophic ocean. Microbes are the primary HOOH sink in marine systems, and in the absence of the microbial community, surface waters in the Atlantic and Pacific Ocean accumulated HOOH to concentrations that were lethal for Prochlorococcus cultures. In laboratory experiments with the marine heterotroph Alteromonas sp., serving as a proxy for the natural community of HOOH-degrading microbes, bacterial depletion of HOOH from the extracellular milieu prevented oxidative damage to the cell envelope and photosystems of co-cultured Prochlorococcus, and facilitated the growth of Prochlorococcus at ecologically-relevant cell concentrations. Curiously, the more recently evolved lineages of Prochlorococcus that exploit the surface mixed layer niche were also the most sensitive to HOOH. The genomic streamlining of these evolved lineages during adaptation to the high-light exposed upper euphotic zone thus appears to be coincident with an acquired dependency on the extant HOOH-consuming community. These results underscore the importance of (indirect) biotic interactions in establishing niche boundaries, and highlight the impacts that community-level responses to stress may have in the ecological and evolutionary outcomes for co-existing species. C1 [Morris, J. Jeffrey; Szul, Martin J.; Zinser, Erik R.] Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. [Johnson, Zackary I.] Duke Univ, Marine Lab, Nicholas Sch Environm, Beaufort, NC 28516 USA. [Keller, Martin] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Morris, JJ (reprint author), Univ Tennessee, Dept Microbiol, Knoxville, TN 37996 USA. EM ezinser@utk.edu RI chen, qi/C-8585-2011; Johnson, Zackary/E-4601-2011; Keller, Martin/C-4416-2012; OI Johnson, Zackary/0000-0003-0793-8512; Morris, James/0000-0001-9079-0082 FU NSF [OCE0526072, OCE0550798]; Phycological Society of America FX This work was supported by NSF grants OCE0526072 to ERZ and OCE0550798 to ZIJ, and a Phycological Society of America grant-in-aid to JJM. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. NR 98 TC 56 Z9 58 U1 3 U2 47 PU PUBLIC LIBRARY SCIENCE PI SAN FRANCISCO PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA SN 1932-6203 J9 PLOS ONE JI PLoS One PD FEB 3 PY 2011 VL 6 IS 2 AR e16805 DI 10.1371/journal.pone.0016805 PG 13 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 717IJ UT WOS:000287036600026 PM 21304826 ER PT J AU Yin, HF Ma, Z Chi, MF Dai, S AF Yin, Hongfeng Ma, Zhen Chi, Miaofang Dai, Sheng TI Heterostructured catalysts prepared by dispersing Au@Fe2O3 core-shell structures on supports and their performance in CO oxidation SO CATALYSIS TODAY LA English DT Article DE Gold; Fe2O3; Au@Fe2O3; Core-shell; Nanoparticles; Catalysis; CO oxidation ID ACTIVE AU/TIO2 CATALYSTS; NIAU ALLOY NANOPARTICLES; GOLD NANOPARTICLES; AU NANOPARTICLES; GOLD/IRON-OXIDE; DEPOSITION-PRECIPITATION; DUMBBELL NANOPARTICLES; AU/FE2O3 CATALYSTS; MESOPOROUS SILICA; STABLE CATALYSTS AB Herein, we report novel gold catalysts made by dispersing Au@Fe2O3 core-shell structures on solid supports. In the synthesis of Au@Fe2O3 core-shell structures, dodecanethiol-capped gold nanoparticles were used as the seed and Fe(CO)(5) was used as the precursor to Fe2O3 shell. The Au@Fe2O3 core-shell particles were deposited onto SiO2 support to obtain Au@Fe2O3/SiO2 catalysts that were highly active for low-temperature CO oxidation. The catalytic activity was even higher than that of Au/SiO2 or Au/Fe2O3 prepared by colloidal deposition with comparable gold loadings. The influences of thermal pretreatment, shell thickness, and different supports (e. g., SiO2, TiO2, C, Fe2O3) were investigated, and relevant characterization using TG/DTG, XRD, TEM, HAADF, and EDX was conducted. (C) 2010 Elsevier B.V. All rights reserved. C1 [Yin, Hongfeng; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. [Ma, Zhen] Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China. [Chi, Miaofang] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. RP Dai, S (reprint author), Oak Ridge Natl Lab, Div Chem Sci, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM dais@ornl.gov RI Ma, Zhen/F-1348-2010; Chi, Miaofang/Q-2489-2015; Dai, Sheng/K-8411-2015 OI Ma, Zhen/0000-0002-2391-4943; Chi, Miaofang/0000-0003-0764-1567; Dai, Sheng/0000-0002-8046-3931 FU Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725]; Oak Ridge National Laboratory; Ridge Associated Universities FX Research sponsored by the Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy under contract DE-AC05-00OR22725 with Oak Ridge National Laboratory, managed and operated by UT-Battelle, LLC. This research was also supported by the appointment for H.F. Yin to the ORNL Research Associates Program, administered by Oak Ridge Associated Universities. NR 92 TC 40 Z9 40 U1 12 U2 170 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 J9 CATAL TODAY JI Catal. Today PD FEB 2 PY 2011 VL 160 IS 1 BP 87 EP 95 DI 10.1016/j.cattod.2010.05.013 PG 9 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 709PX UT WOS:000286454100012 ER PT J AU Lee, MY Jiao, JA Mayes, R Hagaman, E Barnes, CE AF Lee, Ming-Yung Jiao, Jian Mayes, Richard Hagaman, Edward Barnes, Craig E. TI The targeted synthesis of single site vanadyl species on the surface and in the framework of silicate building block materials SO CATALYSIS TODAY LA English DT Article DE Vanadyl; Building block; Single site catalysts; Nanostructured solids; Orthovanadate on silica ID X-RAY-ABSORPTION; MULTIPLE-SCATTERING CALCULATIONS; UV-VIS DRS; OXIDE CATALYSTS; O-17 NMR; STRUCTURAL-CHARACTERIZATION; HETEROGENEOUS CATALYSIS; METHANOL OXIDATION; ACID CATALYSTS; FINE-STRUCTURE AB A new synthetic methodology for the targeted preparation of single site, atomically dispersed vanadyl groups in silicate matrices is described. This methodology requires functionalized silicate building blocks Si8O20(OSnMe3)(8) that become linked together through vanadyl ( V=O) groups in the matrix. A sequential addition strategy is illustrated which allows the targeting of specific connectivities for the vanadyl group to the silicate building block matrix (i.e. the number of V-O-Si bonds linking the vanadyl unit). Silicate matrices containing exclusively 3-connected (OV(OSicube)(3)), 2-connected (OV(OR)(OSicube)(2)) or 1-connected (OVCl2(OSicube)) vanadyl sites are described and characterized via a wide variety spectroscopic and physical techniques (gravimetric analysis, EXAFS, AA and solid state NMR (V-51, Si-29, and O-17)). We demonstrate how the combination of gravimetric, solid state NMR (SSNMR) and EXAFS data can be used to uniquely define the vanadyl sites in these matrices. Furthermore, the use of O-17 SSNMR (1D and MQMAS) is illustrated as an indirect spectroscopic probe to follow changes in the ligands bound to vanadium atom within the vanadyl groups in these matrices. (C) 2010 Elsevier B.V. All rights reserved. C1 [Barnes, Craig E.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Lee, Ming-Yung] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA. [Jiao, Jian; Mayes, Richard; Hagaman, Edward] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Barnes, CE (reprint author), Univ Tennessee, Dept Chem, 552 Buehler Hall, Knoxville, TN 37996 USA. EM cebarnes@utk.edu FU US Department of Energy [DE-FG02-01ER15259]; Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy FX The authors thank Drs. Syed Khalid and Anatoly Frenkel of the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory for helpful discussions. We are grateful to the US Department of Energy (DE-FG02-01ER15259) for the financial support of this project. The NMR research effort of EWH and JJ was sponsored by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy. NR 69 TC 2 Z9 2 U1 3 U2 17 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 J9 CATAL TODAY JI Catal. Today PD FEB 2 PY 2011 VL 160 IS 1 BP 153 EP 164 DI 10.1016/j.cattod.2010.06.029 PG 12 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 709PX UT WOS:000286454100020 ER PT J AU Fuchey, E Camsonne, A Camacho, CM Mazouz, M Gavalian, G Kuchina, E Amarian, M Aniol, KA Beaumel, M Benaoum, H Bertin, P Brossard, M Canan, M Chen, JP Chudakov, E Craver, B Cusanno, F de Jager, CW Deur, A Ferdi, C Feuerbach, R Fieschi, JM Frullani, S Garcon, M Garibaldi, F Gayou, O Gilman, R Gomez, J Gueye, P Guichon, PAM Guillon, B Hansen, O Hayes, D Higinbotham, DW Holmstrom, T Hyde, CE Ibrahim, H Igarashi, R Itard, F Jiang, X Jo, HS Kaufman, LJ Kelleher, A Kolarkar, A Kumbartzki, G Laveissiere, G LeRose, JJ Lindgren, R Liyanage, N Lu, HJ Margaziotis, DJ Meziani, ZE McCormick, K Michaels, R Michel, B Moffit, B Monaghan, P Nanda, S Nelyubin, V Potokar, M Qiang, Y Ransome, RD Real, JS Reitz, B Roblin, Y Roche, J Sabatie, F Saha, A Sirca, S Slifer, K Solvignon, P Subedi, R Sulkosky, V Ulmer, PE Voutier, E Wang, K Weinstein, LB Wojtsekhowski, B Zheng, X Zhu, L AF Fuchey, E. Camsonne, A. Camacho, C. Munoz Mazouz, M. Gavalian, G. Kuchina, E. Amarian, M. Aniol, K. A. Beaumel, M. Benaoum, H. Bertin, P. Brossard, M. Canan, M. Chen, J. -P. Chudakov, E. Craver, B. Cusanno, F. de Jager, C. W. Deur, A. Ferdi, C. Feuerbach, R. Fieschi, J. -M. Frullani, S. Garcon, M. Garibaldi, F. Gayou, O. Gilman, R. Gomez, J. Gueye, P. Guichon, P. A. M. Guillon, B. Hansen, O. Hayes, D. Higinbotham, D. W. Holmstrom, T. Hyde, C. E. Ibrahim, H. Igarashi, R. Itard, F. Jiang, X. Jo, H. S. Kaufman, L. J. Kelleher, A. Kolarkar, A. Kumbartzki, G. Laveissiere, G. LeRose, J. J. Lindgren, R. Liyanage, N. Lu, H. -J. Margaziotis, D. J. Meziani, Z. -E. McCormick, K. Michaels, R. Michel, B. Moffit, B. Monaghan, P. Nanda, S. Nelyubin, V. Potokar, M. Qiang, Y. Ransome, R. D. Real, J. -S. Reitz, B. Roblin, Y. Roche, J. Sabatie, F. Saha, A. Sirca, S. Slifer, K. Solvignon, P. Subedi, R. Sulkosky, V. Ulmer, P. E. Voutier, E. Wang, K. Weinstein, L. B. Wojtsekhowski, B. Zheng, X. Zhu, L. CA Jefferson Lab Hall A Collaboration TI Exclusive neutral pion electroproduction in the deeply virtual regime SO PHYSICAL REVIEW C LA English DT Article ID HIGH-ENERGIES; PHOTOPRODUCTION; SCATTERING AB We present measurements of the ep -> ep pi(0) cross section extracted at two values of four-momentum transfer Q(2) = 1.9 GeV(2) and Q(2) = 2.3 GeV(2) at Jefferson Lab Hall A. The kinematic range allows one to study the evolution of the extracted cross section as a function of Q(2) and W. Results are confronted with Regge-inspired calculations and GPD predictions. An intepretation of our data within the framework of semi-inclusive deep inelastic scattering is also discussed. C1 [Fuchey, E.; Camsonne, A.; Camacho, C. Munoz; Bertin, P.; Brossard, M.; Ferdi, C.; Fieschi, J. -M.; Hyde, C. E.; Itard, F.; Laveissiere, G.; Michel, B.] Univ Clermont Ferrand, Clermont Univ, CNRS IN2P3, Phys Corpusculaire Lab, FR-63000 Clermont Ferrand, France. [Fuchey, E.; Meziani, Z. -E.; Solvignon, P.] Temple Univ, Philadelphia, PA 19122 USA. [Camsonne, A.; Bertin, P.; Chen, J. -P.; Chudakov, E.; de Jager, C. W.; Deur, A.; Feuerbach, R.; Gomez, J.; Hansen, O.; Higinbotham, D. W.; LeRose, J. J.; Michaels, R.; Nanda, S.; Reitz, B.; Roblin, Y.; Roche, J.; Saha, A.; Wojtsekhowski, B.] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. [Camacho, C. Munoz; Beaumel, M.; Garcon, M.; Guichon, P. A. M.; Sabatie, F.] CEA Saclay, IRFU SPhN, FR-91191 Gif Sur Yvette, France. [Mazouz, M.; Guillon, B.; Real, J. -S.; Voutier, E.] Univ Grenoble 1, LPSC, CNRS IN2P3, INPG, FR-38026 Grenoble, France. [Mazouz, M.] Fac Sci Monastir, TN-5000 Monastir, Tunisia. [Gavalian, G.; Amarian, M.; Canan, M.; Hayes, D.; Hyde, C. E.; Ibrahim, H.; Ulmer, P. E.; Weinstein, L. B.] Old Dominion Univ, Norfolk, VA 23508 USA. [Kuchina, E.; Gilman, R.; Jiang, X.; Kumbartzki, G.; McCormick, K.; Ransome, R. D.] Rutgers State Univ, Piscataway, NJ 08854 USA. [Aniol, K. A.; Margaziotis, D. J.] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA. [Benaoum, H.] Syracuse Univ, Syracuse, NY 13244 USA. [Craver, B.; Lindgren, R.; Liyanage, N.; Nelyubin, V.; Slifer, K.; Wang, K.] Univ Virginia, Charlottesville, VA 22904 USA. [Cusanno, F.; Frullani, S.; Garibaldi, F.] Ist Nazl Fis Nucl, Sez Sanita, IT-00161 Rome, Italy. [Gayou, O.; Monaghan, P.; Qiang, Y.] MIT, Cambridge, MA 02139 USA. [Gueye, P.] Hampton Univ, Hampton, VA 23668 USA. [Holmstrom, T.; Kelleher, A.; Moffit, B.; Sulkosky, V.] Coll William & Mary, Williamsburg, VA 23187 USA. [Igarashi, R.] Univ Saskatchewan, Saskatoon, SK S7N 5C6, Canada. [Jo, H. S.] Inst Phys Nucl, CNRS, IN2P3, F-91406 Orsay, France. [Kaufman, L. J.] Univ Massachusetts Amherst, Amherst, MA 01003 USA. [Kolarkar, A.] Univ Kentucky, Lexington, KY 40506 USA. [Lu, H. -J.] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China. [Potokar, M.; Sirca, S.] Univ Ljubljana, Jozef Stefan Inst, Ljubljana, Slovenia. [Subedi, R.] Kent State Univ, Kent, OH 44242 USA. [Zheng, X.] Argonne Natl Lab, Argonne, IL 60439 USA. [Zhu, L.] Univ Illinois, Urbana, IL 61801 USA. RP Fuchey, E (reprint author), Univ Clermont Ferrand, Clermont Univ, CNRS IN2P3, Phys Corpusculaire Lab, FR-63000 Clermont Ferrand, France. RI Higinbotham, Douglas/J-9394-2014; Sabatie, Franck/K-9066-2015; OI Higinbotham, Douglas/0000-0003-2758-6526; Sabatie, Franck/0000-0001-7031-3975; Hachemi, Benaoum/0000-0002-5581-4314; Benaoum, Hachemi/0000-0003-4749-6675; Hyde, Charles/0000-0001-7282-8120 FU DOE under Jefferson Science Associates, LLC [DOE-AC05-06OR23177]; NSF; French CNRS; ANR; Commissariat a l' Energie Atomique FX We acknowledge the essential work of the JLab accelerator division and the Hall A technical staff. This work was supported by DOE Contract No. DOE-AC05-06OR23177 under which the Jefferson Science Associates, LLC, operates the Thomas Jefferson National Accelerator Facility. We acknowledge additional grants from DOE, NSF, and the French CNRS, ANR, and Commissariat a l' Energie Atomique. NR 22 TC 10 Z9 10 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD FEB 2 PY 2011 VL 83 IS 2 AR 025201 DI 10.1103/PhysRevC.83.025201 PG 14 WC Physics, Nuclear SC Physics GA 715KI UT WOS:000286883000003 ER PT J AU Pigni, MT Herman, M Oblozinsky, P Dietrich, FS AF Pigni, M. T. Herman, M. Oblozinsky, P. Dietrich, F. S. TI Sensitivity analysis of neutron total and absorption cross sections within the optical model SO PHYSICAL REVIEW C LA English DT Article ID SIMPLE RAMSAUER MODEL AB Distinct maxima and minima in neutron total and absorption cross-section uncertainties when optical-model parameters are varied have been observed in large-scale covariance calculations. These features were seen over a wide mass range (20-210) and for energies up to 20 MeV. Here we investigate the physical origin of the observed patterns over an extended energy range (1 keV to 200 MeV). We have calculated the sensitivity of the cross sections for a specific nucleus ((56)Fe) to variations of the 15 parameters of a standard global optical potential parametrization, and have also carried out calculations for alternative global optical potentials over the original wide mass and energy ranges. We find that simple physical descriptions can be found in two energy ranges. Below approximately 100 keV, the patterns arise from the interplay of the s- and p-wave single-particle resonances. Above approximately 4 MeV, a single-phase-shift approximation (the Ramsauer model) describes the observed behavior. We discuss the potential importance of such sensitivity studies for further development of optical potentials. C1 [Pigni, M. T.; Herman, M.; Oblozinsky, P.; Dietrich, F. S.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA. [Dietrich, F. S.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Pigni, MT (reprint author), Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA. EM pigni@bnl.gov FU DOE-NNSA; Office of Nuclear Physics, Office of Science of the US Department of Energy [DE-AC02-98CH10886]; Brookhaven Science Associates, LLC.; US Department of Energy by the Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX The present work was supported by the DOE-NNSA within the Nuclear Criticality Safety Program and this support is gratefully acknowledged. The National Nuclear Data Center is sponsored by the Office of Nuclear Physics, Office of Science of the US Department of Energy under Contract DE-AC02-98CH10886 with Brookhaven Science Associates, LLC. Part of this work was performed under the auspices of the US Department of Energy by the Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 9 TC 4 Z9 4 U1 0 U2 2 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD FEB 2 PY 2011 VL 83 IS 2 AR 024601 DI 10.1103/PhysRevC.83.024601 PG 10 WC Physics, Nuclear SC Physics GA 715KI UT WOS:000286883000002 ER PT J AU Neusius, T Daidone, I Sokolov, IM Smith, JC AF Neusius, Thomas Daidone, Isabella Sokolov, Igor M. Smith, Jeremy C. TI Configurational subdiffusion of peptides: A network study SO PHYSICAL REVIEW E LA English DT Article ID DYNAMICS SIMULATIONS; ANOMALOUS DIFFUSION; NEUTRON-SCATTERING; BROWNIAN DYNAMICS; DISORDERED MEDIA; PROTEIN DYNAMICS; MODELS; ENERGY; MOTIONS; FLUCTUATIONS AB Molecular dynamics (MD) simulation of linear peptides reveals configurational subdiffusion at equilibrium extending from 10(-12) to 10(-8) s. Rouse chain and continuous-time random walk models of the subdiffusion are critically discussed. Network approaches to analyzing MD simulations are shown to reproduce the time dependence of the subdiffusive mean squared displacement, which is found to arise from the fractal-like geometry of the accessible volume in the configuration space. Convergence properties of the simulation pertaining to the subdiffusive dynamics are characterized and the effect on the subdiffusive properties of representing the solvent explicitly or implicitly is compared. Non-Markovianity and other factors limiting the range of applicability of the network models are examined. C1 [Neusius, Thomas; Smith, Jeremy C.] Univ Heidelberg, D-69120 Heidelberg, Germany. [Daidone, Isabella] Univ Aquila, Dipartimento Chim, I-67010 Laquila, Italy. [Sokolov, Igor M.] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany. [Smith, Jeremy C.] Oak Ridge Natl Lab, Ctr Mol Biophys, Oak Ridge, TN 37831 USA. RP Neusius, T (reprint author), Univ Heidelberg, Neuenheimer Feld 368, D-69120 Heidelberg, Germany. RI smith, jeremy/B-7287-2012 OI smith, jeremy/0000-0002-2978-3227 FU United States Department of Energy under a Laboratory-Directed Research and Development; DFG [SFB 555] FX J.C.S. thanks the United States Department of Energy for financial support under a Laboratory-Directed Research and Development grant to Oak Ridge National Laboratory. I.M.S. thankfully acknowledges financial support from the DFG joint collaborative grant (SFB 555). NR 57 TC 8 Z9 8 U1 0 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1539-3755 J9 PHYS REV E JI Phys. Rev. E PD FEB 2 PY 2011 VL 83 IS 2 AR 021902 DI 10.1103/PhysRevE.83.021902 PN 1 PG 7 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA 715LB UT WOS:000286884900004 PM 21405858 ER PT J AU Wang, WJ Park, RY Travesset, A Vaknin, D AF Wang, Wenjie Park, Rebecca Y. Travesset, Alex Vaknin, David TI Ion-Specific Induced Charges at Aqueous Soft Interfaces SO PHYSICAL REVIEW LETTERS LA English DT Article ID AIR-WATER-INTERFACE; X-RAY REFLECTIVITY; MONOLAYERS; CATIONS; DISSOCIATION; FLUORESCENCE AB Ionic specificity effects, i.e., ions of the same valence leading to different macroscopic effects, are studied by considering a Langmuir monolayer of arachidic acid over a solution containing either Fe3+ or La3+. We systematically vary pH levels as a way to control the interfacial surface charge and characterize the system by surface-sensitive x-ray scattering and spectroscopic techniques. We show that the critical surface pressure at the tilted (L2) to untilted (LS) transition is ionic specific and varies with pH. While the maximum density of surface bound La3+ per head group of arachidic acid is similar to 0.3, the amount necessary to neutralize the surface charge, for Fe3+ it is nearly 0.6 and it is accompanied with a significant accumulation of the coions Cl- as revealed by surface x-ray spectroscopy. We account for the experimental observations by a statistical mechanical model including ion specificity. C1 [Wang, Wenjie] Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Wang, WJ (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RI Vaknin, David/B-3302-2009 OI Vaknin, David/0000-0002-0899-9248 FU Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC02-07CH11358]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX The work at the Ames Laboratory was supported by the Office of Basic Energy Sciences, U.S. Department of Energy under Contract No. DE-AC02-07CH11358. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 27 TC 20 Z9 20 U1 2 U2 29 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 FEB 2 PY 2011 VL 106 IS 5 AR 056102 DI 10.1103/PhysRevLett.106.056102 PG 4 WC Physics, Multidisciplinary SC Physics GA 715JG UT WOS:000286879900014 PM 21405412 ER PT J AU Bruner, N Welch, DR Hahn, KD Oliver, BV AF Bruner, Nichelle Welch, Dale R. Hahn, Kelly D. Oliver, Bryan V. TI Anode plasma dynamics in the self-magnetic-pinch diode SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS LA English DT Article ID INTENSE ELECTRON-BEAM; DESORPTION; RADIOGRAPHY AB The self-magnetic-pinch diode is being developed as an intense electron beam source for pulsed-power-driven x-ray radiography. In high-power operation, the beam electrons desorb contaminants from the anode surface from which positive ions are drawn to the cathode. The counterstreaming electrons and ions establish an equilibrium current. It has long been recognized, however, that expanding electrode plasmas can disrupt this equilibrium and cause rapid reduction of the diode impedance and the radiation pulse. Recently developed numerical techniques, which enable simultaneous modeling of particle currents with 10(13) cm(-3) densities to plasmas of near solid density, are applied to a model of the self-magnetic-pinch diode which includes the formation and evolution of anode surface plasmas. Two mechanisms are shown to cause rapid impedance loss, anode plasma expansion into the anode-cathode (A-K) gap, and increased ion space-charge near the cathode surface. The former mechanism dominates for shorter A-K gaps, while the latter dominates for longer gaps. Model results qualitatively reproduce the time-dependent impedances measured for this diode. C1 [Bruner, Nichelle; Welch, Dale R.] Voss Sci Inc, Albuquerque, NM 87108 USA. [Hahn, Kelly D.; Oliver, Bryan V.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Bruner, N (reprint author), Voss Sci Inc, Albuquerque, NM 87108 USA. FU Sandia National Laboratories; U.S. Department of Energy [DOA-8910]; U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX This work is supported by Sandia National Laboratories and the U.S. Department of Energy under Contract No. DOA-8910. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under Contract No. DE-AC04-94AL85000. NR 23 TC 9 Z9 11 U1 0 U2 6 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-4402 J9 PHYS REV SPEC TOP-AC JI Phys. Rev. Spec. Top.-Accel. Beams PD FEB 2 PY 2011 VL 14 IS 2 AR 024401 DI 10.1103/PhysRevSTAB.14.024401 PG 7 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 715LT UT WOS:000286886700001 ER PT J AU Lemons, NW Hu, B Hlavacek, WS AF Lemons, Nathan W. Hu, Bin Hlavacek, William S. TI Hierarchical graphs for rule-based modeling of biochemical systems SO BMC BIOINFORMATICS LA English DT Article ID TYROSINE PROTEIN-KINASE; CELLULAR SIGNALING NETWORKS; COMBINATORIAL COMPLEXITY; STOCHASTIC SIMULATION; KINETIC-MODELS; SH3 DOMAINS; PHOSPHORYLATION; TRANSDUCTION; RECEPTOR; ACTIVATION AB Background: In rule-based modeling, graphs are used to represent molecules: a colored vertex represents a component of a molecule, a vertex attribute represents the internal state of a component, and an edge represents a bond between components. Components of a molecule share the same color. Furthermore, graph-rewriting rules are used to represent molecular interactions. A rule that specifies addition (removal) of an edge represents a class of association (dissociation) reactions, and a rule that specifies a change of a vertex attribute represents a class of reactions that affect the internal state of a molecular component. A set of rules comprises an executable model that can be used to determine, through various means, the system-level dynamics of molecular interactions in a biochemical system. Results: For purposes of model annotation, we propose the use of hierarchical graphs to represent structural relationships among components and subcomponents of molecules. We illustrate how hierarchical graphs can be used to naturally document the structural organization of the functional components and subcomponents of two proteins: the protein tyrosine kinase Lck and the T cell receptor (TCR) complex. We also show that computational methods developed for regular graphs can be applied to hierarchical graphs. In particular, we describe a generalization of Nauty, a graph isomorphism and canonical labeling algorithm. The generalized version of the Nauty procedure, which we call HNauty, can be used to assign canonical labels to hierarchical graphs or more generally to graphs with multiple edge types. The difference between the Nauty and HNauty procedures is minor, but for completeness, we provide an explanation of the entire HNauty algorithm. Conclusions: Hierarchical graphs provide more intuitive formal representations of proteins and other structured molecules with multiple functional components than do the regular graphs of current languages for specifying rule-based models, such as the BioNetGen language (BNGL). Thus, the proposed use of hierarchical graphs should promote clarity and better understanding of rule-based models. C1 [Hu, Bin; Hlavacek, William S.] Los Alamos Natl Lab, Div Theoret, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. [Lemons, Nathan W.] Cent European Univ, Dept Math & Applicat, H-1051 Budapest, Hungary. [Hlavacek, William S.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Hlavacek, William S.] Univ New Mexico, Dept Biol, Albuquerque, NM 87131 USA. RP Hlavacek, WS (reprint author), Los Alamos Natl Lab, Div Theoret, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. EM wish@lanl.gov OI Hlavacek, William/0000-0003-4383-8711 FU National Institutes of Health (NIH) [GM076570, GM085273]; US Department of Energy (DOE) [DE-AC52-06NA25396]; Center for Nonlinear Studies FX This work was supported by National Institutes of Health (NIH) grants GM076570, GM085273 and US Department of Energy (DOE) contract DE-AC52-06NA25396. NWL thanks the Center for Nonlinear Studies for funding that made visits to Los Alamos possible. The authors thank Lily A. Chylek, James R. Faeder (JRF) and Pieter Swart for helpful discussions. We also thank JRF for incorporating HNauty into BioNetGen. NR 68 TC 5 Z9 5 U1 0 U2 3 PU BIOMED CENTRAL LTD PI LONDON PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND SN 1471-2105 J9 BMC BIOINFORMATICS JI BMC Bioinformatics PD FEB 2 PY 2011 VL 12 AR 45 DI 10.1186/1471-2105-12-45 PG 13 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Mathematical & Computational Biology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Mathematical & Computational Biology GA 722NV UT WOS:000287439900001 PM 21288338 ER PT J AU Thanos, PK Cho, J Kim, R Michaelides, M Primeaux, S Bray, G Wang, GJ Volkow, ND AF Thanos, Panayotis K. Cho, Jacob Kim, Ronald Michaelides, Michael Primeaux, Stefany Bray, George Wang, Gene-Jack Volkow, Nora D. TI Bromocriptine increased operant responding for high fat food but decreased chow intake in both obesity-prone and resistant rats SO BEHAVIOURAL BRAIN RESEARCH LA English DT Article DE Hyperphagia; Addiction; Dopamine; D2; Diet ID DOPAMINE D2 RECEPTOR; ORBITOFRONTAL CORTEX; DEFICIENT MICE; WEIGHT-GAIN; BODY-WEIGHT; IMPULSIVITY; ADDICTION; INHIBITION; BEHAVIOR AB Dopamine (DA) and DA D(2) receptors (D2R) have been implicated in obesity and are thought to be involved in the rewarding properties of food. Osborne-Mendel (OM) rats are susceptible to diet induced obesity (DIO) while S5B/P (S5B) rats are resistant when given a high-fat diet. Here we hypothesized that the two strains would differ in high-fat food self-administration (FSA) and that the D2R agonist bromocriptine (BC) would differently affect their behavior. Ad-libitum fed OM and S5B/P rats were tested in a FSA operant chamber and were trained to lever press for high-fat food pellets under a fixed-ratio (FR1) and a progressive ratio (PR) schedule. After sixteen days of PR sessions, rats were treated with three different doses of BC (1, 10 and 20 mg/kg). No significant differences were found between the two strains in the number of active lever presses. BC treatment (10 mg/kg and 20 mg/kg) increased the number of active lever presses (10 mg/kg having the strongest effect) whereas it decreased rat chow intake in the home cage with equivalent effects in both strains. These effects were not observed on the day of BC administration but on the day following its administration. Our results suggest that these two strains have similar motivation for procuring high fat food using this paradigm. BC increased operant responding for high-fat pellets but decreased chow intake in both strains, suggesting that D2R stimulation may have enhanced the motivational drive to procure the fatty food while correspondingly decreasing the intake of regular food. These findings suggest that susceptibility to dietary obesity (prior to the onset of obesity) may not affect operant motivation for a palatable high fat food and that differential susceptibility to obesity may be related to differential sensitivity to D2R stimulation. Published by Elsevier B.V. C1 [Thanos, Panayotis K.; Volkow, Nora D.] NIAAA, NIH, Dept Hlth & Human Serv, Lab Neuroimaging, Bethesda, MD USA. [Thanos, Panayotis K.; Cho, Jacob; Kim, Ronald; Michaelides, Michael; Wang, Gene-Jack; Volkow, Nora D.] Brookhaven Natl Lab, Behav Neuropharmacol & Neuroimaging Lab, Upton, NY 11973 USA. [Thanos, Panayotis K.; Kim, Ronald; Michaelides, Michael] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Primeaux, Stefany; Bray, George] Pennington Biomed Res Ctr, Baton Rouge, LA USA. RP Thanos, PK (reprint author), NIAAA, NIH, Dept Hlth & Human Serv, Lab Neuroimaging, Bethesda, MD USA. EM thanos@bnl.gov RI Michaelides, Michael/K-4736-2013 OI Michaelides, Michael/0000-0003-0398-4917 FU NIAAA [AA11034, AA07574, AA07611] FX Support for the study has been contributed by NIAAA Intramural Research Program: (AA11034 and AA07574, AA07611). NR 27 TC 6 Z9 6 U1 0 U2 11 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0166-4328 J9 BEHAV BRAIN RES JI Behav. Brain Res. PD FEB 2 PY 2011 VL 217 IS 1 BP 165 EP 170 DI 10.1016/j.bbr.2010.10.027 PG 6 WC Behavioral Sciences; Neurosciences SC Behavioral Sciences; Neurosciences & Neurology GA 710TK UT WOS:000286539700024 PM 21034777 ER PT J AU Sethi, A Vu, D Gnanakaran, S AF Sethi, Anurag Vu, Dung Gnanakaran, S. TI Conformational and Spectroscopic Characterization of Intrinsically Disordered Regions in Proteins SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Sethi, Anurag; Vu, Dung; Gnanakaran, S.] Los Alamos Natl Lab, Los Alamos, NM USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 13 EP 13 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288600070 ER PT J AU Shaya, D Kreir, M Hammon, J Bruggemann, A Minor, DL AF Shaya, David Kreir, Mohamed Hammon, Justus Brueggemann, Andrea Minor, Daniel L. TI Biochemical and Biophysical Characterization of a Sodium Channel Pore Protein SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Shaya, David; Hammon, Justus; Minor, Daniel L.] UCSF, San Francisco, CA USA. [Kreir, Mohamed; Brueggemann, Andrea] Nanion Technol, Munich, Germany. [Minor, Daniel L.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 15 EP 15 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288600079 ER PT J AU Frueh, DP Nichols, S Mishra, S Arthanari, H Koglin, A Walsh, CT Wagner, G AF Frueh, Dominique P. Nichols, Scott Mishra, Subrata Arthanari, Haribabu Koglin, Alexander Walsh, Christopher T. Wagner, Gerhard TI Transient Domain Interactions in Non-Ribosomal Peptide Synthetases SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Frueh, Dominique P.; Nichols, Scott; Mishra, Subrata] Johns Hopkins Sch Med, Baltimore, MD USA. [Arthanari, Haribabu; Walsh, Christopher T.; Wagner, Gerhard] Harvard Univ, Sch Med, Boston, MA USA. [Koglin, Alexander] Los Alamos Natl Lab, Los Alamos, NM USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 17 EP 17 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288600091 ER PT J AU Khodadadi, S Curtis, JE Sokolov, AP AF Khodadadi, Sheila Curtis, Joseph E. Sokolov, Alexei P. TI Protein Dynamics at the Picosecond-Nanosecond Time Scale: a Complementary Study by Dielectric Spectroscopy, Neutron Spectroscopy and MD Simulation SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Khodadadi, Sheila; Curtis, Joseph E.] NIST, Gaithersburg, MD 20899 USA. [Sokolov, Alexei P.] Oak Ridge Natl Laborat, Oak Ridge, TN USA. [Sokolov, Alexei P.] Univ Tennessee, Knoxville, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 18 EP 18 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288600097 ER PT J AU Kraft, ML Frisz, JF Lou, K Hanafin, W Weber, PK Carpenter, KJ Zimmerberg, J Hutcheon, ID AF Kraft, Mary L. Frisz, Jessica F. Lou, Kaiyan Hanafin, William Weber, Peter K. Carpenter, Kevin J. Zimmerberg, Joshua Hutcheon, Ian D. TI Chemical Imaging of Lipid Organization in the Plasma Membranes of Intact Cells with High Lateral Resolution SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Kraft, Mary L.; Frisz, Jessica F.; Lou, Kaiyan; Hanafin, William] Univ Illinois, Urbana, IL 61801 USA. [Weber, Peter K.; Carpenter, Kevin J.; Hutcheon, Ian D.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Zimmerberg, Joshua] NIH, Bethesda, MD 20892 USA. RI Lou, Kaiyan/D-4199-2012 OI Lou, Kaiyan/0000-0003-3443-0343 NR 0 TC 0 Z9 0 U1 1 U2 6 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 19 EP 20 PG 2 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288600102 ER PT J AU Tainer, JA AF Tainer, John A. TI X-Ray Scattering (SAXS) Combined with Crystallography and Computation: Defining Accurate Macromolecular Structures, Conformations and Assemblies in Solution SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Tainer, John A.] Scripps Res Inst, La Jolla, CA 92037 USA. [Tainer, John A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 5 TC 0 Z9 0 U1 0 U2 9 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 38 EP 38 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288600194 ER PT J AU Phillips, JL Lau, EY Newsam, S Colvin, ME AF Phillips, Joshua L. Lau, Edmond Y. Newsam, Shawn Colvin, Michael E. TI Probing the Conformation Landscape of the Unfolded State: Do Disordered and Unfolded Dynamics Differ? SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Phillips, Joshua L.; Newsam, Shawn; Colvin, Michael E.] Univ Calif Merced, Merced, CA USA. [Lau, Edmond Y.] Lawrence Livermore Natl Lab, Livermore, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 185 EP 185 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288601389 ER PT J AU Ramanathan, A Borreguero, JM Chennubhotla, CS Agarwal, PK AF Ramanathan, Arvind Borreguero, Jose M. Chennubhotla, Chakra S. Agarwal, Pratul K. TI Protein Flexibility and Energy Flow During Enzyme Catalysis SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Ramanathan, Arvind; Borreguero, Jose M.; Agarwal, Pratul K.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Chennubhotla, Chakra S.] Univ Pittsburgh, Pittsburgh, PA USA. RI Borreguero, Jose/B-2446-2009 OI Borreguero, Jose/0000-0002-0866-8158 NR 0 TC 0 Z9 0 U1 0 U2 2 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 194 EP 194 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288601439 ER PT J AU Maslov, S AF Maslov, Sergei TI Mass-Action Equilibrium, Noise, and Non-Specific Interactions in Protein Interaction Networks SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Maslov, Sergei] Brookhaven Natl Lab, Upton, NY 11973 USA. [Maslov, Sergei] SUNY Stony Brook, Stony Brook, NY 11794 USA. RI Maslov, Sergei/C-2397-2009 OI Maslov, Sergei/0000-0002-3701-492X NR 5 TC 0 Z9 0 U1 0 U2 5 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 342 EP 342 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288603001 ER PT J AU Aaron, JS Carson, B Timlin, J AF Aaron, Jesse S. Carson, Bryan Timlin, Jerilyn TI Super-Resolution Microscopy Reveals Protein Spatial Reorganization in Early Innate Immune Responses SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Aaron, Jesse S.; Carson, Bryan; Timlin, Jerilyn] Sandia Natl Labs, Albuquerque, NM 87185 USA. NR 0 TC 0 Z9 0 U1 0 U2 4 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 355 EP 356 PG 2 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288603067 ER PT J AU Jensen, HM Groves, JT Ajo-Franklin, CM AF Jensen, Heather M. Groves, Jay T. Ajo-Franklin, Caroline M. TI Growing Electrical Connections in Living Cells SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Jensen, Heather M.; Ajo-Franklin, Caroline M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 369 EP 369 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288603131 ER PT J AU Jiang, W AF Jiang, Wei TI Study of the Cooperativity of Calcium Binding in Calbindin D9k using 2D Replica-Exchange Umbrella Sampling SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Jiang, Wei] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA. [Jiang, Wei] Argonne Natl Lab, Argonne, IL 60439 USA. NR 3 TC 0 Z9 0 U1 0 U2 1 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 396 EP 396 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288603278 ER PT J AU Voelz, VA Jager, M Zhu, L Yao, SH Bakajin, O Weiss, S Lapidus, LJ Pande, VS AF Voelz, Vincent A. Jaeger, Marcus Zhu, Li Yao, Shuhuai Bakajin, Olgica Weiss, Shimon Lapidus, Lisa J. Pande, Vijay S. TI Markov State Models of Millisecond Folder ACBP Reveals New Views of the Folding Reaction SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Voelz, Vincent A.; Pande, Vijay S.] Stanford Univ, Stanford, CA 94305 USA. [Jaeger, Marcus; Weiss, Shimon] Univ Calif Los Angeles, Los Angeles, CA USA. [Zhu, Li; Lapidus, Lisa J.] Michigan State Univ, Lansing, MI USA. [Yao, Shuhuai] Hong Kong Univ Sci & Technol, Hong Kong, Hong Kong, Peoples R China. [Bakajin, Olgica] Lawrence Livermore Natl Lab, Livermore, CA USA. RI weiss, shimon/B-4164-2009; Yao, Shuhuai/G-8672-2011 OI weiss, shimon/0000-0002-0720-5426; NR 0 TC 4 Z9 4 U1 0 U2 3 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 515 EP 515 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288604318 ER PT J AU Collier, CP Retterer, ST Jung, SY AF Collier, Charles P. Retterer, Scott T. Jung, Seung-Yong TI Interfacial Tension Controlled Fusion of Individual Femtoliter Droplets and Triggering of Confined Chemical Reactions on Demand SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Collier, Charles P.; Retterer, Scott T.; Jung, Seung-Yong] Oak Ridge Natl Lab, Oak Ridge, TN USA. RI Retterer, Scott/A-5256-2011 OI Retterer, Scott/0000-0001-8534-1979 NR 0 TC 0 Z9 0 U1 0 U2 6 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 522 EP 522 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288604353 ER PT J AU Sivak, D Crooks, G AF Sivak, David Crooks, Gavin TI Thermodynamic Efficiency Out of Equilibrium SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Sivak, David; Crooks, Gavin] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 523 EP 524 PG 2 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288604363 ER PT J AU DeWitt, MA Combs, P Cohen, B Yildiz, A AF DeWitt, Mark A. Combs, Peter Cohen, Bruce Yildiz, Ahmet TI Detailed Analysis of the Dynein Stepping Mechanism using Multicolor Tracking SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Cohen, Bruce] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 529 EP 529 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288604393 ER PT J AU Perevozchikova, T Stanley, C McWilliams-Koeppen, HP Berthelier, V AF Perevozchikova, Tatiana Stanley, Christopher McWilliams-Koeppen, Helen P. Berthelier, Valerie TI Structural Variations in the Aggregation Pathways of Normal and Pathological Huntingtin-Like Peptides SO BIOPHYSICAL JOURNAL LA English DT Meeting Abstract CT 55th Annual Meeting of the Biophysical-Society CY MAR 05-09, 2011 CL Baltimore, MD SP Biophys Soc C1 [Perevozchikova, Tatiana; McWilliams-Koeppen, Helen P.; Berthelier, Valerie] Univ Tennessee, Med Ctr, Grad Sch Med, Knoxville, TN USA. [Stanley, Christopher] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD FEB 2 PY 2011 VL 100 IS 3 SU 1 BP 532 EP 532 PG 1 WC Biophysics SC Biophysics GA 972PF UT WOS:000306288604405 ER PT J AU Rodriguez, JA AF Rodriguez, Jose A. TI Gold-based catalysts for the water-gas shift reaction: Active sites and reaction mechanism SO CATALYSIS TODAY LA English DT Review DE Gold; Ceria; Titania; Carbon monoxide; Hydrogen production; Water; Water-gas shift; CO oxidation ID MIXED-METAL OXIDE; AU NANOPARTICLES; NANOMETER LEVEL; ATOMIC OXYGEN; PARTICLE-SIZE; CO OXIDATION; CERIA; CU; SURFACES; TITANIA AB The water-gas shift (WGS, CO + H(2)O -> H(2) + CO(2)) reaction was studied on a series of gold/oxide catalysts. The results of in situ measurements with X-ray absorption spectroscopy indicate that the active phase of Au-ceria and Au-titania catalysts under the reaction conditions of the water-gas shift consists of metallic nanoparticles of gold on a partially reduced oxide support. In spite of the lack of catalytic activity of Au (1 1 1) and other gold surfaces for the water-gas shift process, gold nanoparticles dispersed on oxide surfaces are excellent catalysts for this reaction. Results of density-functional calculations point to a very high barrier for the dissociation of H(2)O on Au (1 1 1) or isolated Au nanoparticles, which leads to negligible activity for the WGS process. In the gold-oxide systems, one has a bifunctional catalyst: the adsorption and dissociation of water takes place on the oxide, CO adsorbs on the gold nanoparticles, and all subsequent reaction steps occur at oxide-metal interfaces. The nature of the support plays a key role in the activation of the gold nanoparticles. Although zinc oxide is frequently used in industrial WGS catalysts, the Au/ZnO (0 0 0 (1) over bar) system displays low WGS activity when compared to Au/CeO(2) (1 1 1), Au/TiO(2) (1 1 0) or Au/CeO(x)/TiO(2) (1 1 0). The ceria and titania supports contain a substantial number of metal cations that are not fully oxidized under WGS reaction conditions and may participate directly in the dissociation of water and other important steps of the catalytic process. The results for Au/CeO(x)/TiO(2) (1 1 0) illustrate the tremendous impact that an optimization of the chemical properties of gold and the oxide phase can have on the activity of a WGS catalyst. (C) 2010 Elsevier B.V. All rights reserved. C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Rodriguez, JA (reprint author), Brookhaven Natl Lab, Dept Chem, Chem 555, Upton, NY 11973 USA. EM rodrigez@bnl.gov FU US Department of Energy (Chemical Sciences Division) [DE-AC02-98CH10886] FX Many of the experiments described in the text of this article were done by the Group of Catalysis and Surface Science at Brookhaven National Laboratory (L. Barrio, M. Estrella, J.C. Hanson, J. Hrbek, P. Liu, S. Ma, A. Nambu, J.-B. Park, J.A. Rodriguez, S.D. Senanayake, D. Stacchiola, X. Wang, W. Wen) in collaboration with research groups at the Universidad Central de Venezuela (J. Evans, M. Perez) and the Universidad de Sevilla (J. Graciani, J.F. Sanz). The research carried out at Brookhaven National Laboratory was supported by the US Department of Energy (Chemical Sciences Division, DE-AC02-98CH10886). NR 44 TC 74 Z9 75 U1 17 U2 173 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 J9 CATAL TODAY JI Catal. Today PD FEB 2 PY 2011 VL 160 IS 1 BP 3 EP 10 DI 10.1016/j.cattod.2010.06.030 PG 8 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 709PX UT WOS:000286454100002 ER PT J AU Fang, YL Miller, JT Guo, N Heck, KN Alvarez, PJJ Wong, MS AF Fang, Yu-Lun Miller, Jeffrey T. Guo, Neng Heck, Kimberly N. Alvarez, Pedro J. J. Wong, Michael S. TI Structural analysis of palladium-decorated gold nanoparticles as colloidal bimetallic catalysts SO CATALYSIS TODAY LA English DT Article DE Colloidal bimetallic nanoparticle catalyst; Palladium; Gold; XAS; XANES; EXAFS; Hydrodechlorination; Trichloroethene ID RAY-ABSORPTION-SPECTROSCOPY; FINE-STRUCTURE SPECTROSCOPY; STRUCTURE EXAFS; TRICHLOROETHENE HYDRODECHLORINATION; CHEMICAL-PROPERTIES; PARTICLE-SIZE; CU CLUSTERS; REACTIVITY; REDUCTION; SURFACES AB Bimetallic palladium-decorated gold nanoparticle (Pd/Au NP) catalysts are significantly more active than palladium-only catalysts, but the mechanism for enhancement is not completely clear for most reactions, like the aqueous-phase hydrodechlorination of trichloroethene. In this study, we conducted X-ray absorption spectroscopy on carbon-supported Pd/Au NPs to obtain information about the local atomic environment (i.e., oxidation states, coordination numbers, and bond distances) of the two metals under different treatment conditions. The as-synthesized NPs were confirmed to have a Pd-shell/Au-core nanostructure, in which the Pd was found as surface ensembles. Upon exposure to room temperature in air, a portion of the Pd, but not the Au, was oxidized. In comparison, nearly the entire surface of monometallic Pd NPs was oxidized, suggesting that Au in Pd/Au NPs imparts oxidation resistance to Pd atoms. The surface Pd was found randomly distributed, presumably as a PdAu surface alloy, after reduction at 300 degrees C. X-ray absorption spectroscopy provides direct evidence for the Pd-shell/Au-core structure of Pd/Au NPs, and suggests that metallic Pd in the Pd/Au NPs is a source for higher catalytic activity for aqueous-phase trichloroethene hydrodechlorination. (C) 2010 Elsevier B.V. All rights reserved. C1 [Fang, Yu-Lun; Heck, Kimberly N.; Wong, Michael S.] Rice Univ, Dept Chem & Biomol Engn, Houston, TX 77005 USA. [Miller, Jeffrey T.; Guo, Neng] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Heck, Kimberly N.] Rice Univ, Dept Civil & Environm Engn, Houston, TX 77005 USA. [Alvarez, Pedro J. J.; Wong, Michael S.] Rice Univ, Ctr Biol & Environm Nanotechnol, Houston, TX 77005 USA. [Wong, Michael S.] Rice Univ, Dept Chem, Houston, TX 77005 USA. RP Wong, MS (reprint author), Rice Univ, Dept Chem & Biomol Engn, 6100 S Main St, Houston, TX 77005 USA. EM mswong@rice.edu RI Wong, Michael/F-9286-2010; BM, MRCAT/G-7576-2011; ID, MRCAT/G-7586-2011; Guo, Neng/A-3223-2013 OI Wong, Michael/0000-0002-3652-3378; FU National Science Foundation (CBEN) [EEC-0647452]; Welch Foundation [C-1676]; Department of Energy; MRCAT member institutions; U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work is supported by the National Science Foundation (CBEN, EEC-0647452) and the Welch Foundation (C-1676). Materials Research Collaborative Access Team (MRCAT) operations (at the Advanced Photon Source, Argonne National Laboratory) are supported by the Department of Energy and the MRCAT member institutions. Use of the Advanced Photon Source is supported by the U.S. Department of Energy, Office of Science, and Office of Basic Energy Sciences, under Contract DE-AC02-06CH11357. We thank Dr. H. G. Bagaria (Rice University) for collecting TEM images and insightful discussions; Prof. J. Braam (Rice University) for use of the freeze-dryer and Mr. Y.-C. Tsai (Rice University) for assistance. NR 73 TC 33 Z9 33 U1 6 U2 73 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 J9 CATAL TODAY JI Catal. Today PD FEB 2 PY 2011 VL 160 IS 1 BP 96 EP 102 DI 10.1016/j.cattod.2010.08.010 PG 7 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 709PX UT WOS:000286454100013 ER PT J AU Molina, LM Lee, S Sell, K Barcaro, G Fortunelli, A Lee, B Seifert, S Winans, RE Elam, JW Pellin, MJ Barke, I von Oeynhausen, V Lei, Y Meyer, RJ Alonso, JA Rodriguez, AF Kleibert, A Giorgio, S Henry, CR Meiwes-Broer, KH Vajda, S AF Molina, Luis M. Lee, Sungsik Sell, Kristian Barcaro, Giovanni Fortunelli, Alessandro Lee, Byeongdu Seifert, Soenke Winans, Randall E. Elam, Jeffrey W. Pellin, Michael J. Barke, Ingo von Oeynhausen, Viola Lei, Yu Meyer, Randall J. Alonso, Julio A. Rodriguez, Arantxa Fraile Kleibert, Armin Giorgio, Suzanne Henry, Claude R. Meiwes-Broer, Karl-Heinz Vajda, Stefan TI Size-dependent selectivity and activity of silver nanoclusters in the partial oxidation of propylene to propylene oxide and acrolein: A joint experimental and theoretical study SO CATALYSIS TODAY LA English DT Article DE Silver clusters; Propene; Propylene; Propylene oxide; Acrolein; Density-functional calculations; Oxametallacycle complex; Cluster reshaping ID IN-SITU GISAXS; GENERALIZED GRADIENT APPROXIMATION; ENVIRONMENTAL ELECTRON-MICROSCOPY; DENSITY-FUNCTIONAL THEORY; OXYGEN-COVERED AG(100); X-RAY-SCATTERING; ETHYLENE EPOXIDATION; PROPENE EPOXIDATION; GOLD NANOPARTICLES; MOLECULAR-OXYGEN AB Model silver nanocatalysts between 9 and 23 nm in size were prepared by size-selected cluster deposition from a free cluster beam on amorphous alumina films and their size-dependent catalytic performance studied in the partial oxidation of propylene under realistic reaction conditions. Smaller clusters preferentially produced acrolein, while the 23 nm particles were considerably more selective towards the formation of propylene oxide, at reaction rates far exceeding those previously reported for larger silver particles. The activity of clusters dropped significantly with increasing particle size. First-principle calculations, of the activation energies for oxygen adsorption and its dissociation, at variable surface coverage yielded surface energies which resulted in particle shapes resembling the experimentally observed shapes of partially oxidized silver clusters. The calculated activation barriers for propylene oxide and acrolein formation on various facets and on the edges of the nanoparticles provided detailed information about the energetics of the competing reaction pathways. The size-and corresponding morphology dependent theoretical activity and selectivity are in good accord with experimental observations. (C) 2010 Elsevier B.V. All rights reserved. C1 [Pellin, Michael J.; Lei, Yu; Vajda, Stefan] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. [Molina, Luis M.; Alonso, Julio A.] Univ Valladolid, Dept Fis Teor Atom & Opt, E-47011 Valladolid, Spain. [Lee, Sungsik; Lee, Byeongdu; Seifert, Soenke; Winans, Randall E.] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA. [Sell, Kristian; Barke, Ingo; von Oeynhausen, Viola; Meiwes-Broer, Karl-Heinz] Univ Rostock, Inst Phys, D-18051 Rostock, Germany. [Barcaro, Giovanni; Fortunelli, Alessandro] IPCF CNR, Mol Modeling Lab, I-56124 Pisa, Italy. [Elam, Jeffrey W.] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA. [Lei, Yu; Meyer, Randall J.] Univ Illinois, Dept Chem Engn, Chicago, IL 60607 USA. [Rodriguez, Arantxa Fraile; Kleibert, Armin] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland. [Giorgio, Suzanne; Henry, Claude R.] Aix Marseille Univ, F-13288 Marseille 09, France. [Giorgio, Suzanne; Henry, Claude R.] CINaM CNRS, F-13288 Marseille 09, France. [Vajda, Stefan] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. [Vajda, Stefan] Yale Univ, Dept Chem Engn, New Haven, CT 06520 USA. RP Vajda, S (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave,Bldg 200,Room A109, Argonne, IL 60439 USA. EM vajda@anl.gov RI Fraile Rodriguez, Arantxa/A-2446-2009; Pellin, Michael/B-5897-2008; Barke, Ingo/H-2097-2013; Barcaro, Giovanni/M-2614-2013; Kleibert, Armin/P-6775-2014; Alonso, Julio /D-5781-2016; Molina, Luis/K-5989-2016 OI Lee, Byeongdu/0000-0003-2514-8805; Fraile Rodriguez, Arantxa/0000-0003-2722-0882; Lei, Yu/0000-0002-4161-5568; Barcaro, Giovanni/0000-0002-5520-5914; Pellin, Michael/0000-0002-8149-9768; Barke, Ingo/0000-0002-1717-570X; Kleibert, Armin/0000-0003-3630-9360; Alonso, Julio /0000-0002-8604-8608; Molina, Luis/0000-0001-9559-2851 FU Ministerio de Ciencia e Innovacion [MAT2008-06483-C03-01]; Junta de Castilla y Leon [VA017A08, GR23]; EC [ERC-2008-AdG-227457]; CASPUR Supercomputing Center (Rome, Italy); Deutsche Forschungsgemeinschaft [Schwerpunktprogramm 1153]; American Chemical Society; US Department of Energy, BES-Materials Sciences and BES-Chemical Sciences, and BES-Scientific User Facilities [DE-AC-02-06CH11357]; UChicago Argonne, LLC; Air Force Office of Scientific Research FX The work at Universidad de Valladolid was supported by Ministerio de Ciencia e Innovacion (MAT2008-06483-C03-01 project) and Junta de Castilla y Leon (VA017A08 and GR23 projects). LMM acknowledges fruitful discussions with Paulina Martin. The work at IPCF-CNR was supported by the EC VII FP within the ERC-AG SEPON project (ERC-2008-AdG-227457) and the computational support by the CASPUR Supercomputing Center (Rome, Italy) within the "Competitive HPC Grant 2009" E-MOON project. The work at the Universitat Rostock was supported by the Deutsche Forschungsgemeinschaft, Schwerpunktprogramm 1153 "Cluster in Kontakt mit Oberflachen" (German Science Foundation, Priority Program "Clusters at Surfaces"). Y.L. and R.J.M would like to acknowledge support from the American Chemical Society Petroleum Research Fund. The work at Argonne National Laboratory was supported by the US Department of Energy, BES-Materials Sciences and BES-Chemical Sciences, and BES-Scientific User Facilities under Contract DE-AC-02-06CH11357 with UChicago Argonne, LLC, Operator of Argonne National Laboratory. S. V. gratefully acknowledges the support by the Air Force Office of Scientific Research. NR 117 TC 59 Z9 60 U1 9 U2 103 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 J9 CATAL TODAY JI Catal. Today PD FEB 2 PY 2011 VL 160 IS 1 BP 116 EP 130 DI 10.1016/j.cattod.2010.08.022 PG 15 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 709PX UT WOS:000286454100016 ER PT J AU Toops, TJ Ottinger, NA Liang, CD Pihl, JA Payzant, EA AF Toops, Todd J. Ottinger, Nathan A. Liang, Chengdu Pihl, Josh A. Payzant, E. Andrew TI Impact of dopants on the sulfation, desulfation and NOx reduction performance of Ba-based NOx storage-reduction catalysts SO CATALYSIS TODAY LA English DT Article DE NOx storage-reduction (NSR) catalysts; Sulfur; Dopant; Barium; Calcium ID TRAP CATALYSTS; CERIA; BEHAVIOR; PLATINUM; LA2O3 AB The performance of a NOx storage-reduction (NSR) catalyst is strongly dependent on the relative stabilities of nitrates and sulfates on the catalyst surface. This effort studies the effects of introducing 5 mol% La, Ca, and K-dopants into a BaO phase of a model Pt/Ba/Al2O3 NSR catalyst. The dopants were chosen with a range of properties to affect the BaO lattice spacing and/or the number of oxygen vacancies. The resulting changes in the storage material, in turn, impact the stability of stored nitrates and sulfates, as measured by NOx conversions and desulfation temperatures. The Ca- and La-doped material shows equivalent or better NOx reduction performance between 200 and 400 degrees C, while the K-doped NSR catalyst showed significant decreases in performance at 200 degrees C but maintained the high performance at 300 and 400 degrees C. Following the performance measurements, the samples are then sulfated to 5.5 mg S/gcat and desulfated to 1000 degrees C. All NSR catalysts generally show similar desulfation behavior, but in determining the temperature of 20% sulfur removal (T-20%), it is shown that the Ca + Ba sample has a 25 degrees C lower T-20% than both the Ba-only and La + Ba samples, while K + Ba is 70 degrees C higher. Additional Ca-based samples were than prepared at the 10, 20 and 100 mol% levels. The higher Ca-doped materials show similar NOx reduction performance, but the 5% Ca + Ba sample maintains the lowest T-20%. Interestingly, the Ca-only sample has a T-20% that is 60 degrees C higher than the Ba-only NSR catalyst, which indicates that the introduction of 5% Ca into the Ba-lattice has a synergistic effect in lowering the desulfation temperature. (C) 2010 Elsevier B.V. All rights reserved. C1 [Toops, Todd J.; Ottinger, Nathan A.; Liang, Chengdu; Pihl, Josh A.; Payzant, E. Andrew] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Toops, TJ (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM toopstj@ornl.gov RI Payzant, Edward/B-5449-2009; Liang, Chengdu/G-5685-2013 OI Payzant, Edward/0000-0002-3447-2060; FU U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy; Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy; DOE [DE-AC05-00OR22725] FX This research was primarily sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Program, with Ken Howden and Gurpreet Singh as the Program Managers. The catalysts were synthesized and characterized at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, Office of Basic Energy Sciences, U.S. Department of Energy. Oak Ridge National Laboratory operates under DOE contract number DE-AC05-00OR22725 and is managed by UT-Battelle. NR 29 TC 4 Z9 4 U1 0 U2 25 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0920-5861 J9 CATAL TODAY JI Catal. Today PD FEB 2 PY 2011 VL 160 IS 1 BP 131 EP 136 DI 10.1016/j.cattod.2010.08.009 PG 6 WC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical SC Chemistry; Engineering GA 709PX UT WOS:000286454100017 ER PT J AU Bhattacharyya, D Turton, R Zitney, SE AF Bhattacharyya, Debangsu Turton, Richard Zitney, Stephen E. TI Steady-State Simulation and Optimization of an Integrated Gasification Combined Cycle Power Plant with CO2 Capture SO INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH LA English DT Article ID COMMERCIALLY READY TECHNOLOGY; FLOW COAL GASIFIER; CARBON-DIOXIDE; TECHNOECONOMIC EVALUATION; CHAR STRUCTURE; IGCC; COMBUSTION; HYDROGEN; SYSTEM; ELECTRICITY AB Integrated gasification combined cycle (IGCC) plants are a promising technology option for power generation with carbon dioxide (CO2) capture in view of their efficiency and environmental advantages over conventional coal utilization technologies. This paper presents a three-phase, top-down, optimization-based approach for designing an IGCC plant with precombustion CO2 capture in a process simulator environment. In the first design phase, important global design decisions are made on the basis of plant-wide optimization studies with the aim of increasing IGCC thermal efficiency and thereby making better use of coal resources and reducing CO2 emissions. For the design of an IGCC plant with 90% CO2 capture, the optimal combination of the extent of carbon monoxide (CO) conversion in the water-gas shift (WGS) reactors and the extent of CO2 capture in the SELEXOL process, using dimethylether of polyethylene glycol as the solvent, is determined in the first phase. In the second design phase, the impact of local design decisions is explored considering the optimum values of the decision variables from the first phase as additional constraints. Two decisions are made focusing on the SELEXOL and Claus unit. In the third design phase, the operating conditions are optimized considering the optimum values of the decision variables from the first and second phases as additional constraints. The operational flexibility of the plant must be taken into account before taking final design decisions. Two studies on the operational flexibility of the WGS reactors and one study focusing on the operational flexibility of the sour water stripper (SWS) are presented. At the end of the first iteration, after executing all the phases once, the net plant efficiency (HHV basis) increases to 34.1% compared to 32.5% in a previously published study (DOE/NETL-2007/1281; National Energy Technology Laboratory, 2007). The study shows that the three-phase, top-down design approach presented is very useful and effective in a process simulator environment for improving efficiency and flexibility of IGCC power plants with CO2 capture. In addition, the study identifies a number of key design variables that has strong impact on the efficiency of an IGCC plant with CO2 capture. C1 [Bhattacharyya, Debangsu; Turton, Richard] W Virginia Univ, Dept Chem Engn, Morgantown, WV 26506 USA. [Bhattacharyya, Debangsu; Turton, Richard; Zitney, Stephen E.] Natl Energy Technol Lab, Morgantown, WV 26507 USA. RP Bhattacharyya, D (reprint author), W Virginia Univ, Dept Chem Engn, Morgantown, WV 26506 USA. EM Debangsu.Bhattacharyya@mail.wvu.edu; Richard.Turton@mail.wvu.edu; Steve.Zitney@netl.doe.gov FU National Energy Technology Laboratory's under the RDS [DE-AC26-04NT41817] FX This technical effort was performed in support of the National Energy Technology Laboratory's ongoing research in Process and Dynamic Systems Research under the RDS contract DE-AC26-04NT41817. NR 62 TC 40 Z9 40 U1 1 U2 42 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0888-5885 J9 IND ENG CHEM RES JI Ind. Eng. Chem. Res. PD FEB 2 PY 2011 VL 50 IS 3 BP 1674 EP 1690 DI 10.1021/ie101502d PG 17 WC Engineering, Chemical SC Engineering GA 710GV UT WOS:000286499800052 ER PT J AU Ku, JY Aruguete, DM Alivisatos, AP Geissler, PL AF Ku, JiYeon Aruguete, Deborah M. Alivisatos, A. Paul Geissler, Phillip L. TI Self-Assembly of Magnetic Nanoparticles in Evaporating Solution SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID VAN-DER-WAALS; COBALT NANOCRYSTALS; FEPT NANOPARTICLES; CONTRAST AGENTS; ARRAYS; PARTICLES; SUPERLATTICES; SIMULATIONS; GRAPHITE; NETWORKS AB When deposited from an evaporating solution onto a substrate, even nondescript nanoparticles can organize into intricate spatial patterns. Here we show that a simple but long-ranged anisotropy in nanoparticles' interactions can greatly enrich this scenario. In experiments with colloidal Co nanocrystals, which bear a substantial magnetic dipole, we observe assemblies quite distinct from those formed by nonmagnetic particles. Reflecting the strongly nonequilibrium nature of this process, nanocrystal aggregates also differ substantially from expected low-energy arrangements. Using coarse-grained computer simulations of dipolar nanoparticles, we have identified several dynamical mechanisms from which such unusual morphologies can arise. For particles with modest dipole moments, transient connections between growing domains frustrate phase separation into sparse and dense regions on the substrate. Characteristic length scales of the resulting cellular networks depend non-monotonically on the depth of quenches we use to mimic the effects of solvent evaporation. For particles with strong dipole moments, chain-like aggregates formed at early times serve as the agents of assembly at larger scales. Their effective interactions drive the formation of layered loop structures similar to those observed in experiments. C1 [Ku, JiYeon; Aruguete, Deborah M.; Alivisatos, A. Paul; Geissler, Phillip L.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Alivisatos, A. Paul] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Geissler, Phillip L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Geissler, PL (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. EM geissler@cchem.berkeley.edu FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-ACO2-05CH11231]; National Science Foundation [CHE-0610373, CHE-0910981] FX This work was supported in part by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, under Contract No. DE-ACO2-05CH11231 (J.K.) and by the National Science Foundation under Awards CHE-0610373 (D.M.A.) and CHE-0910981 (P.L.G.). NR 72 TC 39 Z9 39 U1 6 U2 78 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 FEB 2 PY 2011 VL 133 IS 4 BP 838 EP 848 DI 10.1021/ja107138x PG 11 WC Chemistry, Multidisciplinary SC Chemistry GA 720QN UT WOS:000287295300046 PM 21158454 ER PT J AU Dong, AG Ye, XC Chen, J Kang, YJ Gordon, T Kikkawa, JM Murray, CB AF Dong, Angang Ye, Xingchen Chen, Jun Kang, Yijin Gordon, Thomas Kikkawa, James M. Murray, Christopher B. TI A Generalized Ligand-Exchange Strategy Enabling Sequential Surface Functionalization of Colloidal Nanocrystals SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article ID OXYGEN REDUCTION REACTION; FEPT NANOPARTICLES; SEMICONDUCTOR NANOCRYSTALS; MAGNETIC-PROPERTIES; AQUEOUS-SOLUTIONS; PHASE-TRANSFER; MONODISPERSE; SUPERLATTICES; WATER; SOLIDS AB The ability to engineer surface properties of nanocrystals (NCs) is important for various applications, as many of the physical and chemical properties of nanoscale materials are strongly affected by the surface chemistry. Here, we report a facile ligand-exchange approach, which enables sequential surface functionalization and phase transfer of colloidal NCs while preserving the NC size and shape. Nitrosonium tetrafluoroborate (NOBF4) is used to replace the original organic ligands attached to the NC surface, stabilizing the NCs in various polar, hydrophilic media such as N,N-dimethylformamide for years, with no observed aggregation or precipitation. This approach is applicable to various NCs (metal oxides, metals, semiconductors, and dielectrics) of different sizes and shapes. The hydrophilic NCs obtained can subsequently be further functionalized using a variety of capping molecules, imparting different surface functionalization to NCs depending on the molecules employed. Our work provides a versatile ligand-exchange strategy for NC surface functionalization and represents an important step toward controllably engineering the surface properties of NCs. C1 [Dong, Angang; Ye, Xingchen; Kang, Yijin; Gordon, Thomas; Murray, Christopher B.] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA. [Chen, Jun; Murray, Christopher B.] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA. [Kikkawa, James M.] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA. [Dong, Angang] Univ Calif Berkeley, Lawrence Berkeley Lab, Mol Foundry, Berkeley, CA 94720 USA. RP Dong, AG (reprint author), Univ Penn, Dept Chem, Philadelphia, PA 19104 USA. EM adong@lbl.gov; cbmurray@sas.upenn.edu RI Kang, Yijin/E-7767-2012; Gordon, Thomas/H-2924-2012; Dong, Angang/C-5308-2014; Chen, Jun/F-7103-2014; Ye, Xingchen/D-3202-2017; OI Ye, Xingchen/0000-0001-6851-2721; Dong, Angang/0000-0002-9677-8778 FU U.S. Army Research Office (ARO) [MURI W911NF-08-1-0364]; Office of Science, Office of Basic Energy Sciences, Scientific User Facilities Division, of the U.S. Department of Energy [DE-AC02-05CH11231]; Department of Energy's Division of Basic Energy Sciences [DE-SC0002158]; Nano/Bio Interface Center through the National Science Foundation NSEC [DMR08-32802]; NSF MRSEC [DMR-0520020]; Penn Regional Nanotechnology Facility FX A.D. and C.B.M. acknowledge primary support from the U.S. Army Research Office (ARO) under award number MURI W911NF-08-1-0364 for his roles as experimental lead. C.B.M. is grateful to Richard Perry for the support of his role as project supervisor. This work was partially performed at the Molecular Foundry, Lawrence Berkeley National Laboratory, and was supported by the Office of Science, Office of Basic Energy Sciences, Scientific User Facilities Division, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. X.Y.'s contributions with NaYF4 nanophosphors were supported by the Department of Energy's Division of Basic Energy Sciences under award number DE-SC0002158, while T.G.'s development of TiO2 nanorods was supported by the Nano/Bio Interface Center through the National Science Foundation NSEC under award number DMR08-32802. J.C., Y.K., and J.M.K.'s studies of surface exchanged magnetic nanoparticles were supported through NSF MRSEC program under award number DMR-0520020. We thank Douglas Yates and Lolita Rotkina for the analytical support of the Penn Regional Nanotechnology Facility. NR 58 TC 232 Z9 232 U1 37 U2 308 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 FEB 2 PY 2011 VL 133 IS 4 BP 998 EP 1006 DI 10.1021/ja108948z PG 9 WC Chemistry, Multidisciplinary SC Chemistry GA 720QN UT WOS:000287295300062 PM 21175183 ER PT J AU Sanchez, PD Lees, JP Poireau, V Prencipe, E Tisserand, V Tico, JG Grauges, E Martinelli, M Palano, A Pappagallo, M Eigen, G Stugu, B Sun, L Battaglia, M Brown, DN Hooberman, B Kerth, LT Kolomensky, YG Lynch, G Osipenkov, IL Tanabe, T Hawkes, CM Watson, AT Koch, H Schroeder, T Asgeirsson, DJ Hearty, C Mattison, TS McKenna, JA Khan, A Randle-Conde, A Blinov, VE Buzykaev, AR Druzhinin, VP Golubev, VB Onuchin, AP Serednyakov, SI Skovpen, YI Solodov, EP Todyshev, KY Yushkov, AN Bondioli, M Curry, S Kirkby, D Lankford, AJ Mandelkern, M Martin, EC Stoker, DP Atmacan, H Gary, JW Liu, F Long, O Vitug, GM Campagnari, C Hong, TM Kovalskyi, D Richman, JD West, C Eisner, AM Heusch, CA Kroseberg, J Lockman, WS Martinez, AJ Schalk, T Schumm, BA Seiden, A Winstrom, LO Cheng, CH Doll, DA Echenard, B Hitlin, DG Ongmongkolkul, P Porter, FC Rakitin, AY Andreassen, R Dubrovin, MS Mancinelli, G Meadows, BT Sokoloff, MD Bloom, PC Ford, WT Gaz, A Nagel, M Nauenberg, U Smith, JG Wagner, SR Ayad, R Toki, WH Jasper, H Karbach, TM Merkel, J Petzold, A Spaan, B Wacker, K Kobel, MJ Schubert, KR Schwierz, R Bernard, D Verderi, M Clark, PJ Playfer, S Watson, JE Andreotti, M Bettoni, D Bozzi, C Calabrese, R Cecchi, A Cibinetto, G Fioravanti, E Franchini, P Luppi, E Munerato, M Negrini, M Petrella, A Piemontese, L Baldini-Ferroli, R Calcaterra, A de Sangro, R Finocchiaro, G Nicolaci, M Pacetti, S Patteri, P Peruzzi, IM Piccolo, M Rama, M Zallo, A Contri, R Guido, E Lo Vetere, M Monge, MR Passaggio, S Patrignani, C Robutti, E Tosi, S Bhuyan, B Prasad, V Lee, CL Morii, M Adametz, A Marks, J Uwer, U Bernlochner, FU Ebert, M Lacker, HM Lueck, T Volk, A Dauncey, PD Tibbetts, M Behera, PK Mallik, U Chen, C Cochran, J Crawley, HB Dong, L Meyer, WT Prell, S Rosenberg, EI Rubin, AE Gritsan, AV Guo, ZJ Arnaud, N Davier, M Derkach, D da Costa, JF Grosdidier, G Le Diberder, F Lutz, AM Malaescu, B Perez, A Roudeau, P Schune, MH Serrano, J Sordini, V Stocchi, A Wang, L Wormser, G Lange, DJ Wright, DM Bingham, I Chavez, CA Coleman, JP Fry, JR Gabathuler, E Gamet, R Hutchcroft, DE Payne, DJ Touramanis, C Bevan, AJ Di Lodovico, F Sacco, R Sigamani, M Cowan, G Paramesvaran, S Wren, AC Brown, DN Davis, CL Denig, AG Fritsch, M Gradl, W Hafner, A Alwyn, KE Bailey, D Barlow, RJ Jackson, G Lafferty, GD West, TJ Anderson, J Cenci, R Jawahery, A Roberts, DA Simi, G Tuggle, JM Dallapiccola, C Salvati, E Cowan, R Dujmic, D Sciolla, G Zhao, M Lindemann, D Patel, PM Robertson, SH Schram, M Biassoni, P Lazzaro, A Lombardo, V Palombo, F Stracka, S Cremaldi, L Godang, R Kroeger, R Sonnek, P Summers, DJ Nguyen, X Simard, M Taras, P De Nardo, G Monorchio, D Onorato, G Sciacca, C Raven, G Snoek, HL Jessop, CP Knoepfel, KJ LoSecco, JM Wang, WF Corwin, LA Honscheid, K Kass, R Morris, JP Blount, NL Brau, J Frey, R Igonkina, O Kolb, JA Rahmat, R Sinev, NB Strom, D Strube, J Torrence, E Castelli, G Feltresi, E Gagliardi, N Margoni, M Morandin, M Posocco, M Rotondo, M Simonetto, F Stroili, R Ben-Haim, E Bonneaud, GR Briand, H Calderini, G Chauveau, J Hamon, O Leruste, P Marchiori, G Ocariz, J Prendki, J Sitt, S Biasini, M Manoni, E Rossi, A Angelini, C Batignani, G Bettarini, S Carpinelli, M Casarosa, G Cervelli, A Forti, F Giorgi, MA Lusiani, A Neri, N Paoloni, E Rizzo, G Walsh, JJ Pegna, DL Lu, C Olsen, J Smith, AJS Telnov, AV Anulli, F Baracchini, E Cavoto, G Faccini, R Ferrarotto, F Ferroni, F Gaspero, M Gioi, LL Mazzoni, MA Piredda, G Renga, F Hartmann, T Leddig, T Schroder, H Waldi, R Adye, T Franek, B Olaiya, EO Wilson, FF Emery, S de Monchenault, GH Vasseur, G Yeche, C Zito, M Allen, MT Aston, D Bard, DJ Bartoldus, R Benitez, JF Cartaro, C Convery, MR Dorfan, J Dubois-Felsmann, GP Dunwoodie, W Field, RC Sevilla, MF Fulsom, BG Gabareen, AM Graham, MT Grenier, P Hast, C Innes, WR Kelsey, MH Kim, H Kim, P Kocian, ML Leith, DWGS Li, S Lindquist, B Luitz, S Luth, V Lynch, HL MacFarlane, DB Marsiske, H Muller, DR Neal, H Nelson, S O'Grady, CP Ofte, I Perl, M Pulliam, T Ratcliff, BN Roodman, A Salnikov, AA Santoro, V Schindler, RH Schwiening, J Snyder, A Su, D Sullivan, MK Sun, S Suzuki, K Thompson, JM Va'vra, J Wagner, AP Weaver, M West, CA Wisniewski, WJ Wittgen, M Wright, DH Wulsin, HW Yarritu, AK Young, CC Ziegler, V Chen, XR Park, W Purohit, MV White, RM Wilson, JR Sekula, SJ Bellis, M Burchat, PR Edwards, AJ Miyashita, TS Ahmed, S Alam, MS Ernst, JA Pan, B Saeed, MA Zain, SB Guttman, N Soffer, A Lund, P Spanier, SM Eckmann, R Ritchie, JL Ruland, AM Schilling, CJ Schwitters, RF Wray, BC Izen, JM Lou, XC Bianchi, F Gamba, D Pelliccioni, M Bomben, M Lanceri, L Vitale, L Lopez-March, N Martinez-Vidal, F Milanes, DA Oyanguren, A Albert, J Banerjee, SW Choi, HHF Hamano, K King, GJ Kowalewski, R Lewczuk, MJ Nugent, IM Roney, JM Sobie, RJ Gershon, TJ Harrison, PF Latham, TE Puccio, EMT Band, HR Dasu, S Flood, KT Pan, Y Prepost, R Vuosalo, CO Wu, SL AF Sanchez, P. del Amo Lees, J. P. Poireau, V. Prencipe, E. Tisserand, V. Tico, J. Garra Grauges, E. Martinelli, M. Palano, A. Pappagallo, M. Eigen, G. Stugu, B. Sun, L. Battaglia, M. Brown, D. N. Hooberman, B. Kerth, L. T. Kolomensky, Yu. G. Lynch, G. Osipenkov, I. L. Tanabe, T. Hawkes, C. M. Watson, A. T. Koch, H. Schroeder, T. Asgeirsson, D. J. Hearty, C. Mattison, T. S. McKenna, J. A. Khan, A. Randle-Conde, A. Blinov, V. E. Buzykaev, A. R. Druzhinin, V. P. Golubev, V. B. Onuchin, A. P. Serednyakov, S. I. Skovpen, Yu. I. Solodov, E. P. Todyshev, K. Yu. Yushkov, A. N. Bondioli, M. Curry, S. Kirkby, D. Lankford, A. J. Mandelkern, M. Martin, E. C. Stoker, D. P. Atmacan, H. Gary, J. W. Liu, F. Long, O. Vitug, G. M. Campagnari, C. Hong, T. M. Kovalskyi, D. Richman, J. D. West, C. Eisner, A. M. Heusch, C. A. Kroseberg, J. Lockman, W. S. Martinez, A. J. Schalk, T. Schumm, B. A. Seiden, A. Winstrom, L. O. Cheng, C. H. Doll, D. A. Echenard, B. Hitlin, D. G. Ongmongkolkul, P. Porter, F. C. Rakitin, A. Y. Andreassen, R. Dubrovin, M. S. Mancinelli, G. Meadows, B. T. Sokoloff, M. D. Bloom, P. C. Ford, W. T. Gaz, A. Nagel, M. Nauenberg, U. Smith, J. G. Wagner, S. R. Ayad, R. Toki, W. H. Jasper, H. Karbach, T. M. Merkel, J. Petzold, A. Spaan, B. Wacker, K. Kobel, M. J. Schubert, K. R. Schwierz, R. Bernard, D. Verderi, M. Clark, P. J. Playfer, S. Watson, J. E. Andreotti, M. Bettoni, D. Bozzi, C. Calabrese, R. Cecchi, A. Cibinetto, G. Fioravanti, E. Franchini, P. Luppi, E. Munerato, M. Negrini, M. Petrella, A. Piemontese, L. Baldini-Ferroli, R. Calcaterra, A. de Sangro, R. Finocchiaro, G. Nicolaci, M. Pacetti, S. Patteri, P. Peruzzi, I. M. Piccolo, M. Rama, M. Zallo, A. Contri, R. Guido, E. Lo Vetere, M. Monge, M. R. Passaggio, S. Patrignani, C. Robutti, E. Tosi, S. Bhuyan, B. Prasad, V. Lee, C. L. Morii, M. Adametz, A. Marks, J. Uwer, U. Bernlochner, F. U. Ebert, M. Lacker, H. M. Lueck, T. Volk, A. Dauncey, P. D. Tibbetts, M. Behera, P. K. Mallik, U. Chen, C. Cochran, J. Crawley, H. B. Dong, L. Meyer, W. T. Prell, S. Rosenberg, E. I. Rubin, A. E. Gritsan, A. V. Guo, Z. J. Arnaud, N. Davier, M. Derkach, D. da Costa, J. Firmino Grosdidier, G. Le Diberder, F. Lutz, A. M. Malaescu, B. Perez, A. Roudeau, P. Schune, M. H. Serrano, J. Sordini, V. Stocchi, A. Wang, L. Wormser, G. Lange, D. J. Wright, D. M. Bingham, I. Chavez, C. A. Coleman, J. P. Fry, J. R. Gabathuler, E. Gamet, R. Hutchcroft, D. E. Payne, D. J. Touramanis, C. Bevan, A. J. Di Lodovico, F. Sacco, R. Sigamani, M. Cowan, G. Paramesvaran, S. Wren, A. C. Brown, D. N. Davis, C. L. Denig, A. G. Fritsch, M. Gradl, W. Hafner, A. Alwyn, K. E. Bailey, D. Barlow, R. J. Jackson, G. Lafferty, G. D. West, T. J. Anderson, J. Cenci, R. Jawahery, A. Roberts, D. A. Simi, G. Tuggle, J. M. Dallapiccola, C. Salvati, E. Cowan, R. Dujmic, D. Sciolla, G. Zhao, M. Lindemann, D. Patel, P. M. Robertson, S. H. Schram, M. Biassoni, P. Lazzaro, A. Lombardo, V. Palombo, F. Stracka, S. Cremaldi, L. Godang, R. Kroeger, R. Sonnek, P. Summers, D. J. Nguyen, X. Simard, M. Taras, P. De Nardo, G. Monorchio, D. Onorato, G. Sciacca, C. Raven, G. Snoek, H. L. Jessop, C. P. Knoepfel, K. J. LoSecco, J. M. Wang, W. F. Corwin, L. A. Honscheid, K. Kass, R. Morris, J. P. Blount, N. L. Brau, J. Frey, R. Igonkina, O. Kolb, J. A. Rahmat, R. Sinev, N. B. Strom, D. Strube, J. Torrence, E. Castelli, G. Feltresi, E. Gagliardi, N. Margoni, M. Morandin, M. Posocco, M. Rotondo, M. Simonetto, F. Stroili, R. Ben-Haim, E. Bonneaud, G. R. Briand, H. Calderini, G. Chauveau, J. Hamon, O. Leruste, Ph. Marchiori, G. Ocariz, J. Prendki, J. Sitt, S. Biasini, M. Manoni, E. Rossi, A. Angelini, C. Batignani, G. Bettarini, S. Carpinelli, M. Casarosa, G. Cervelli, A. Forti, F. Giorgi, M. A. Lusiani, A. Neri, N. Paoloni, E. Rizzo, G. Walsh, J. J. Pegna, D. Lopes Lu, C. Olsen, J. Smith, A. J. S. Telnov, A. V. Anulli, F. Baracchini, E. Cavoto, G. Faccini, R. Ferrarotto, F. Ferroni, F. Gaspero, M. Gioi, L. Li Mazzoni, M. A. Piredda, G. Renga, F. Hartmann, T. Leddig, T. 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Bellis, M. Burchat, P. R. Edwards, A. J. Miyashita, T. S. Ahmed, S. Alam, M. S. Ernst, J. A. Pan, B. Saeed, M. A. Zain, S. B. Guttman, N. Soffer, A. Lund, P. Spanier, S. M. Eckmann, R. Ritchie, J. L. Ruland, A. M. Schilling, C. J. Schwitters, R. F. Wray, B. C. Izen, J. M. Lou, X. C. Bianchi, F. Gamba, D. Pelliccioni, M. Bomben, M. Lanceri, L. Vitale, L. Lopez-March, N. Martinez-Vidal, F. Milanes, D. A. Oyanguren, A. Albert, J. Banerjee, S. W. Choi, H. H. F. Hamano, K. King, G. J. Kowalewski, R. Lewczuk, M. J. Nugent, I. M. Roney, J. M. Sobie, R. J. Gershon, T. J. Harrison, P. F. Latham, T. E. Puccio, E. M. T. Band, H. R. Dasu, S. Flood, K. T. Pan, Y. Prepost, R. Vuosalo, C. O. Wu, S. L. CA BaBar Collaboration TI Studies of tau(-) -> eta K- nu(tau) and tau(-) -> eta pi(-) nu(tau) at BABAR and a search for a second-class current SO PHYSICAL REVIEW D LA English DT Article ID DECAY; JETS AB We report on analyses of tau lepton decays tau(-) -> eta K- nu(tau) and tau(-) -> eta pi(-) nu(tau), with eta -> pi(+) pi(-) pi(0), using 470 fb(-1) of data from the BABAR experiment at PEP-II, collected at center-of-mass energies at and near the Y(4S) resonance. We measure the branching fraction for the tau(-) -> eta K- nu(tau) decay mode, B(tau(-) -> eta K- nu(tau)) = (1.42 +/- 0.11(stat) +/- 0.07(syst)) x 10(-4), and report a 95% confidence level upper limit for the second-class current process tau(-) -> eta pi(-) nu(tau), B(tau(-) -> eta pi(-) nu(tau)) < 9.9 x 10(-5). C1 [Sanchez, P. del Amo; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.] Univ Savoie, Lab Annecy Le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. [Tico, J. 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J.; Kowalewski, R.; Lewczuk, M. J.; Nugent, I. M.; Roney, J. M.; Sobie, R. J.] Univ Victoria, Victoria, BC V8W 3P6, Canada. [Gershon, T. J.; Harrison, P. F.; Latham, T. E.; Puccio, E. M. T.] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England. [Band, H. R.; Dasu, S.; Flood, K. T.; Pan, Y.; Prepost, R.; Vuosalo, C. O.; Wu, S. L.] Univ Wisconsin, Madison, WI 53706 USA. [Carpinelli, M.] Univ Sassari, I-07100 Sassari, Italy. RP Sanchez, PD (reprint author), Univ Savoie, Lab Annecy Le Vieux Phys Particules LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France. RI Martinez Vidal, F*/L-7563-2014; Kolomensky, Yury/I-3510-2015; Lo Vetere, Maurizio/J-5049-2012; Lusiani, Alberto/N-2976-2015; Morandin, Mauro/A-3308-2016; Lusiani, Alberto/A-3329-2016; Stracka, Simone/M-3931-2015; Di Lodovico, Francesca/L-9109-2016; Pappagallo, Marco/R-3305-2016; Calcaterra, Alessandro/P-5260-2015; Frey, Raymond/E-2830-2016; Luppi, Eleonora/A-4902-2015; Neri, Nicola/G-3991-2012; White, Ryan/E-2979-2015; Calabrese, Roberto/G-4405-2015; Forti, Francesco/H-3035-2011; Rotondo, Marcello/I-6043-2012; de Sangro, Riccardo/J-2901-2012; Saeed, Mohammad Alam/J-7455-2012; Negrini, Matteo/C-8906-2014; Patrignani, Claudia/C-5223-2009; Monge, Maria Roberta/G-9127-2012; Oyanguren, Arantza/K-6454-2014 OI Raven, Gerhard/0000-0002-2897-5323; 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; Morandin, Mauro/0000-0003-4708-4240; Lusiani, Alberto/0000-0002-6876-3288; Stracka, Simone/0000-0003-0013-4714; Di Lodovico, Francesca/0000-0003-3952-2175; Pappagallo, Marco/0000-0001-7601-5602; Calcaterra, Alessandro/0000-0003-2670-4826; Frey, Raymond/0000-0003-0341-2636; Luppi, Eleonora/0000-0002-1072-5633; Neri, Nicola/0000-0002-6106-3756; White, Ryan/0000-0003-3589-5900; Calabrese, Roberto/0000-0002-1354-5400; Forti, Francesco/0000-0001-6535-7965; Rotondo, Marcello/0000-0001-5704-6163; de Sangro, Riccardo/0000-0002-3808-5455; Saeed, Mohammad Alam/0000-0002-3529-9255; Negrini, Matteo/0000-0003-0101-6963; Patrignani, Claudia/0000-0002-5882-1747; Monge, Maria Roberta/0000-0003-1633-3195; Oyanguren, Arantza/0000-0002-8240-7300 FU SLAC; U.S. Department of Energy; National Science Foundation; Natural Sciences and Engineering Research Council (Canada); Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France); Bundesministerium fur Bildung und Forschung; Deutsche Forschungsgemeinschaft (Germany); Istituto Nazionale di Fisica Nucleare (Italy); Foundation for Fundamental Research on Matter (The Netherlands); Research Council of Norway; Ministry of Education and Science of the Russian Federation; Ministerio de Ciencia e Innovacion (Spain); Science and Technology Facilities Council (United Kingdom); European Union; A. P. Sloan Foundation (USA); Binational Science Foundation (U.S.-Israel) FX We are grateful for the extraordinary contributions of our PEP-II colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), the Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union), the A. P. Sloan Foundation (USA), and the Binational Science Foundation (U.S.-Israel). NR 17 TC 13 Z9 13 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1550-7998 J9 PHYS REV D JI Phys. Rev. D PD FEB 2 PY 2011 VL 83 IS 3 AR 032002 DI 10.1103/PhysRevD.83.032002 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 715KP UT WOS:000286883700003 ER PT J AU Pabst, S Greenman, L Ho, PJ Mazziotti, DA Santra, R AF Pabst, Stefan Greenman, Loren Ho, Phay J. Mazziotti, David A. Santra, Robin TI Decoherence in Attosecond Photoionization SO PHYSICAL REVIEW LETTERS LA English DT Article ID IONIZATION; SPECTROSCOPY; DYNAMICS; MIGRATION AB The creation of superpositions of hole states via single-photon ionization using attosecond extreme-ultraviolet pulses is studied with the time-dependent configuration-interaction singles (TDCIS) method. Specifically, the degree of coherence between hole states in atomic xenon is investigated. We find that interchannel coupling not only affects the hole populations, but it also enhances the entanglement between the photoelectron and the remaining ion, thereby reducing the coherence within the ion. As a consequence, even if the spectral bandwidth of the ionizing pulse exceeds the energy splittings among the hole states involved, perfectly coherent hole wave packets cannot be formed. For sufficiently large spectral bandwidth, the coherence can only be increased by increasing the mean photon energy. C1 [Pabst, Stefan; Santra, Robin] DESY, Ctr Free Electron Laser Sci, D-22607 Hamburg, Germany. [Pabst, Stefan; Santra, Robin] Univ Hamburg, Dept Phys, D-20355 Hamburg, Germany. [Greenman, Loren; Mazziotti, David A.] Univ Chicago, Dept Chem, Chicago, IL 60637 USA. [Greenman, Loren; Mazziotti, David A.] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA. [Ho, Phay J.] Argonne Natl Lab, Argonne, IL 60439 USA. RP Pabst, S (reprint author), DESY, Ctr Free Electron Laser Sci, Notkestr 85, D-22607 Hamburg, Germany. EM robin.santra@cfel.de RI Pabst, Stefan/J-6541-2013; Santra, Robin/E-8332-2014 OI Pabst, Stefan/0000-0003-1134-4629; Santra, Robin/0000-0002-1442-9815 FU Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC02-06CH11357]; NSF; Henry-Camille Dreyfus Foundation; David-Lucile Packard Foundation; Microsoft Corporation FX P. J. H. was supported by the Office of Basic Energy Sciences, U.S. Department of Energy under Contract No. DE-AC02-06CH11357. L. G. thanks Martha Ann and Joseph A. Chenicek and their family for financial support. D. A. M. gratefully acknowledges the NSF, the Henry-Camille Dreyfus Foundation, the David-Lucile Packard Foundation, and the Microsoft Corporation for their support. NR 38 TC 43 Z9 43 U1 1 U2 26 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 FEB 2 PY 2011 VL 106 IS 5 AR 053003 DI 10.1103/PhysRevLett.106.053003 PG 4 WC Physics, Multidisciplinary SC Physics GA 715JG UT WOS:000286879900005 PM 21405393 ER PT J AU Granderson, J Piette, MA Ghatikar, G AF Granderson, Jessica Piette, Mary Ann Ghatikar, Girish TI Building energy information systems: user case studies SO ENERGY EFFICIENCY LA English DT Article DE Anomaly detection; Baselining; Benchmarking; Energy efficiency; Diagnostics; Energy analysis; Energy information system; Enterprise energy management; Performance monitoring; Web-based energy management and control system AB Measured energy performance data are essential to national efforts to improve building efficiency, as evidenced in recent benchmarking mandates, and in a growing body of work that indicates the value of permanent monitoring and energy information feedback. This paper presents case studies of energy information systems (EIS) at four enterprises and university campuses, focusing on the attained energy savings, and successes and challenges in technology use and integration. EIS are broadly defined as performance monitoring software, data acquisition hardware, and communication systems to store, analyze, and display building energy information. Case investigations showed that the most common energy savings and instances of waste concerned scheduling errors, measurement and verification, and inefficient operations. Data quality is critical to effective EIS use, and is most challenging at the subsystem or component level, and with non-electric energy sources. Sophisticated prediction algorithms may not be well understood but can be applied quite effectively, and sites with custom benchmark models or metrics are more likely to perform analyses external to the EIS. Finally, resources and staffing were identified as a universal challenge, indicating a need to identify additional models of EIS use that extend beyond exclusive in-house use, to analysis services. C1 [Granderson, Jessica; Piette, Mary Ann; Ghatikar, Girish] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Granderson, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM JGranderson@lbl.gov FU California Energy Commission; California Institute for Energy and Environment [MUC-08-04]; US Government FX Vendor participation was critical to the success of this study, and the authors wish to acknowledge their generosity and willingness to be included in this work. This work was supported by the California Energy Commission and the California Institute for Energy and Environment under Contract No. MUC-08-04.; This document was prepared as an account of work sponsored by the US Government. While this document is believed to contain correct information, neither the US Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the US Government or any agency thereof, or The Regents of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the US Government or any agency thereof or The Regents of the University of California. NR 22 TC 17 Z9 17 U1 5 U2 22 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1570-646X J9 ENERG EFFIC JI Energy Effic. PD FEB PY 2011 VL 4 IS 1 BP 17 EP 30 DI 10.1007/s12053-010-9084-4 PG 14 WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Environmental Studies SC Science & Technology - Other Topics; Energy & Fuels; Environmental Sciences & Ecology GA 796QW UT WOS:000293067800003 ER PT J AU Usov, IO Valdez, JA Sickafus, KE AF Usov, I. O. Valdez, J. A. Sickafus, K. E. TI Temperature dependence of lattice disorder in Ar-irradiated (100), (110) and (111) MgO single crystals SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article DE Magnesia; Irradiation damage recovery; High temperature irradiation ID INERT MATRIX FUEL; RADIATION-DAMAGE; DEFECT CLUSTERS; ION-IRRADIATION; CERAMICS; MAGNESIA; BEHAVIOR AB To better appreciate dynamic annealing processes in ion irradiated MgO single crystals of three low-index crystallographic orientations, lattice damage variation with irradiation temperature was investigated. Irradiations were performed with 100 key Ar ions to a fluence of 1 x 10(15) Ar/cm(2) in a temperature interval from -150 to 1100 degrees C. Rutherford backscattering spectroscopy combined with ion channeling was used to analyze lattice damage. Damage recovery with increasing irradiation temperature proceeded via two characteristic stages separated by 200 degrees C. Strong radiation damage anisotropy was observed at temperatures below 200 degrees C, with (1 1 0) MgO being the most radiation damage tolerant. Above 200 degrees C damage recovery was isotropic and almost complete recovery was reached at 1100 degrees C. We attributed this orientation dependence to a variation of dynamic annealing mechanisms with irradiation temperature. (C) 2010 Elsevier B.V. All rights reserved. C1 [Usov, I. O.; Valdez, J. A.; Sickafus, K. E.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Usov, IO (reprint author), Los Alamos Natl Lab, Mailstop K763, Los Alamos, NM 87544 USA. EM iusov@lanl.gov FU US Department of Energy Office of Basic Energy Sciences, Division of Materials Sciences and Engineering; US Department of Energy's High Temperature Superconductivity (HTS); US Department of Energy FX This work was supported by the US Department of Energy Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, US Department of Energy's High Temperature Superconductivity (HTS) Program and US Department of Energy Advanced Fuel Cycle Campaign and Fuel Cycle R&D Program. The authors would like to thank J. Tesmer and Y. Wang from the IBML facility for their technical assistance. NR 21 TC 6 Z9 6 U1 2 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD FEB 1 PY 2011 VL 269 IS 3 BP 288 EP 291 DI 10.1016/j.nimb.2010.12.024 PG 4 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA 796FK UT WOS:000293037000015 ER PT J AU Moy, CM Dunbar, RB Guilderson, TP Waldmann, N Mucciarone, DA Recasens, C Ariztegui, D Austin, JA Anselmetti, FS AF Moy, Christopher M. Dunbar, Robert B. Guilderson, Thomas P. Waldmann, Nicolas Mucciarone, David A. Recasens, Cristina Ariztegui, Daniel Austin, James A., Jr. Anselmetti, Flavio S. TI A geochemical and sedimentary record of high southern latitude Holocene climate evolution from Lago Fagnano, Tierra del Fuego SO EARTH AND PLANETARY SCIENCE LETTERS LA English DT Article DE Southern Hemisphere westerly winds; Holocene paleoclimate; radiocarbon; stable isotopes; Tierra del Fuego ID SW PATAGONIA; ORGANIC GEOCHEMISTRY; MARINE-SEDIMENTS; LAST MILLENNIUM; ATLANTIC SECTOR; BAHIA INUTIL; FIRE HISTORY; THRUST BELT; AMERICA; CHILE AB Situated at the southern margin of the hemispheric westerly wind belt and immediately north of the Antarctic Polar Frontal zone, Tierra del Fuego is well-positioned to monitor coupled changes in the ocean-atmosphere system of the high southern latitudes. Here we describe a Holocene paleoclimate record from sediment cores obtained from Lago Fagnano, a large lake in southern Tierra del Fuego at 55 degrees S, to investigate past changes in climate related to these two important features of the global climate system. We use an AMS radiocarbon chronology for the last 8000 yr based on pollen concentrates, thereby avoiding contamination from bedrock-derived lignite. Our chronology is consistent with a tephrochronologic age date for deposits from the middle Holocene Volcan Hudson eruption. Combining bulk organic isotopic (delta C-13 and delta N-15) and elemental (C and N) parameters with physical sediment properties allows us to better understand sediment provenance and transport mechanisms and to interpret Holocene climate and tectonic change during the last 8000 yr. Co-variability and long-term trends in C/N ratio, carbon accumulation rate, and magnetic susceptibility reflect an overall Holocene increase in the delivery of terrestrial organic and lithogenic material to the deep eastern basin. We attribute this variability to westerly wind-derived precipitation. Increased wind strength and precipitation in the late Holocene drives the Nothofagus forest eastward and enhances run-off and terrigenous inputs to the lake. Superimposed on the long-term trend are a series of abrupt 9 negative departures in C/N ratio, which constrain the presence of seismically-driven mass flow events in the record. We identify an increase in bulk delta C-13 between 7000 and 5000 cal yr BP that we attribute to enhanced aquatic productivity driven by warmer summer temperatures. The Lago Fagnano delta C-13 record shows similarities with Holocene records of sea surface temperature from the mid-latitude Chilean continental shelf and Antarctic air temperatures from the Taylor Dome ice core record in East Antarctica. Mid-Holocene warming occurred simultaneously across the Antarctic Frontal Zone, and in particular, in locations currently influenced by the Antarctic Circumpolar Current. Published by Elsevier B.V. C1 [Moy, Christopher M.] Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA. [Dunbar, Robert B.; Mucciarone, David A.] Stanford Univ, Dept Environm Earth Syst Sci, Stanford, CA 94305 USA. [Guilderson, Thomas P.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA. [Waldmann, Nicolas] Univ Bergen, Dept Earth Sci, N-5007 Bergen, Norway. [Recasens, Cristina; Ariztegui, Daniel] Univ Geneva, Dept Geol & Paleontol, CH-1205 Geneva, Switzerland. [Austin, James A., Jr.] Univ Texas Austin, Inst Geophys, John A & Katherine G Jackson Sch Geosci, Austin, TX 78758 USA. [Anselmetti, Flavio S.] Eawag, Swiss Fed Inst Aquat Sci & Technol, Dept Surface Waters, CH-8600 Dubendorf, Switzerland. RP Moy, CM (reprint author), Univ Otago, Dept Geol, POB 56, Dunedin 9054, New Zealand. EM moyc@stanford.edu; dunbar@stanford.edu; tguilderson@llnl.gov; Nicolas.Waldmann@geo.uib.no; dam@stanford.edu; Cristina.Recasens@unige.ch; daniel.ariztegui@unige.ch; jamie@ig.utexas.edu; flavio.anselmetti@eawag.ch OI Waldmann, Nicolas/0000-0003-4627-208X FU U.S. National Science Foundation (NSF); Swiss NSF [10 200021-100668/1, 200020-111928/1]; National Geographic Society [CRE12 7705-04]; U.S. Dept. of Energy; Limnogeology Division of the Geological Society of America; Stanford University [2330] FX We would like to thank the scientific and general staff at the Centro Austral de Investigaciones Cientificas (CADIC) in Ushuaia, Argentina for their continued help and support during this project. We thank Captains Jorge Ebling and Rafael Quezada for their assistance with RN Neecho operations. In addition, we thank Steffen Saustrup and Mark Wiederspahn of the Institute for Geophysics for their technical assistance in the field. Funding for this research was provided by a U.S. National Science Foundation (NSF) SGER grant to RBD, Swiss NSF awards (10 200021-100668/1 and 200020-111928/1) to DA, and a National Geographic Society grant (CRE12 7705-04) to JAA. C. Moy gratefully acknowledges support from a U.S. Dept. of Energy Global Change Education Program Graduate Fellowship, a Kerry Kelts Award from the Limnogeology Division of the Geological Society of America, and a Stanford University McGee grant UTIG Contribution Number #2330. NR 79 TC 19 Z9 19 U1 1 U2 25 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0012-821X EI 1385-013X J9 EARTH PLANET SC LETT JI Earth Planet. Sci. Lett. PD FEB 1 PY 2011 VL 302 IS 1-2 BP 1 EP 13 DI 10.1016/j.epsl.2010.11.011 PG 13 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 724DH UT WOS:000287555800001 ER PT J AU Numrich, RW Heroux, MA AF Numrich, Robert W. Heroux, Michael A. TI Self-similarity of parallel machines SO PARALLEL COMPUTING LA English DT Article DE Parallel algorithms; Benchmark analysis; Computational intensity; Computational force; Dimensional analysis; Equivalence class; Self-similarity; Scaling; Mixing coefficient ID LINPACK BENCHMARK AB Self-similarity is a property of physical systems that describes how to scale parameters such that dissimilar systems appear to be similar. Computer systems are self-similar if certain ratios of computational forces, also known as computational intensities, are equal. Two machines with different computational power, different network bandwidth and different inter-processor latency behave the same way if they have the same ratios of forces. For the parallel conjugate gradient algorithm studied in this paper, two machines are self-similar if and only if the ratio of one force describing latency effects to another force describing bandwidth effects is the same for both machines. For the two machines studied in this paper, this ratio, which we call the mixing coefficient, is invariant as problem size and processor count change. The two machines have the same mixing coefficient and belong to the same equivalence class. (C) 2010 Elsevier B.V. All rights reserved. C1 [Numrich, Robert W.] Univ Minnesota, Minnesota Supercomp Inst, Minneapolis, MN 55455 USA. [Heroux, Michael A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Heroux, Michael A.] St Johns Univ, Collegeville, MN 56321 USA. RP Numrich, RW (reprint author), Univ Minnesota, Minnesota Supercomp Inst, Minneapolis, MN 55455 USA. EM robert.numrich@csi.cuny.edu OI Heroux, Michael/0000-0002-5893-0273 FU United States Department of Energy through Sandia National Laboratories, Albuquerque [DE-FG02-04ER25629] FX The United States Department of Energy supported this research by Grant DE-FG02-04ER25629 through Sandia National Laboratories, Albuquerque. The Minnesota Supercomputing Institute supplied a block of time on its computers. The authors thank Charles Grassl of SUN Microsystems for helpful discussions about interpretations of our results. NR 44 TC 2 Z9 2 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-8191 J9 PARALLEL COMPUT JI Parallel Comput. PD FEB PY 2011 VL 37 IS 2 BP 69 EP 84 DI 10.1016/j.parco.2010.11.003 PG 16 WC Computer Science, Theory & Methods SC Computer Science GA 738HY UT WOS:000288632100001 ER PT J AU Cheng, M Datta, S Francis, A van der Heide, J Jung, C Kaczmarek, O Karsch, F Laermann, E Mawhinney, RD Miao, C Mukherjee, S Petreczky, P Rantaharju, J Schmidt, C Soldner, W AF Cheng, M. Datta, S. Francis, A. van der Heide, J. Jung, C. Kaczmarek, O. Karsch, F. Laermann, E. Mawhinney, R. D. Miao, C. Mukherjee, S. Petreczky, P. Rantaharju, J. Schmidt, C. Soeldner, W. TI Meson screening masses from lattice QCD with two light quarks and one strange quark SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID HIGH-TEMPERATURE PHASE; HADRONIC SPECTRUM; HOT QCD; FERMIONS; PLASMA; CHROMODYNAMICS; SYMMETRY AB We present results for screening masses of mesons built from light and strange quarks in the temperature range of approximately between 140 MeV to 800 MeV. The lattice computations were performed with 2 + 1 dynamical light and strange flavors of improved (p4) staggered fermions along a line of constant physics defined by a pion mass of about 220 MeV and a kaon mass of 500 MeV. The lattices had temporal extents N-tau = 4, 6 and 8 and aspect ratios of N-s/N-tau = 4. At least up to a temperature of 140 MeV the pseudo-scalar screening mass remains almost equal to the corresponding zero temperature pseudo-scalar (pole) mass. At temperatures around 3T(c) (T-c being the transition temperature) the continuum extrapolated pseudo-scalar screening mass approaches very close to the free continuum result of 2 pi T from below. On the other hand, at high temperatures the vector screening mass turns out to be larger than the free continuum value of 2pT. The pseudo-scalar and the vector screening masses do not become degenerate even for a temperature as high as 4T(c). Using these mesonic spatial correlation functions we have also investigated the restoration of chiral symmetry and the effective restoration of the axial symmetry. We have found that the vector and the axial-vector screening correlators become degenerate, indicating chiral symmetry restoration, at a temperature which is consistent with the QCD transition temperature obtained in previous studies. On the other hand, the pseudo-scalar and the scalar screening correlators become degenerate only at temperatures larger than 1.3T(c), indicating that the effective restoration of the axial symmetry takes place at a temperature larger than the QCD transition temperature. C1 [Cheng, M.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA. [Datta, S.] Tata Inst Fundamental Res, Dept Theoret Phys, Bombay 400005, Maharashtra, India. [Francis, A.; van der Heide, J.; Kaczmarek, O.; Karsch, F.; Laermann, E.; Rantaharju, J.] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany. [Jung, C.; Karsch, F.; Miao, C.; Mukherjee, S.; Petreczky, P.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Mawhinney, R. D.] Columbia Univ, Dept Phys, New York, NY 10027 USA. [Rantaharju, J.] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland. [Schmidt, C.; Soeldner, W.] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany. [Schmidt, C.; Soeldner, W.] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany. RP Cheng, M (reprint author), Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA. EM swagato@bnl.gov RI Kaczmarek, Olaf/E-9932-2011 FU U.S. Department of Energy [DE-AC02-98CH10886, DE-FG02-92ER40699]; Bundesministerium fur Bildung und Forschung [06BI401]; Gesellschaft fur Schwerionenforschung [BILAER]; Helmholtz Alliance [HA216/EMMI]; Deutsche Forschungsgemeinschaft [GRK 881]; DOE FX This work has been supported in part by contracts DE-AC02-98CH10886 and DE-FG02-92ER40699 with the U.S. Department of Energy, the Bundesministerium fur Bildung und Forschung under grant 06BI401, the Gesellschaft fur Schwerionenforschung under grant BILAER, the Helmholtz Alliance HA216/EMMI grant and the Deutsche Forschungsgemeinschaft under grant GRK 881. The numerical computations have been carried out on the apeNEXT at Bielefeld University, the QCDOC computer of the RIKEN-BNL research center, the DOE funded QCDOC at BNL and the BlueGene/L at the New York Center for Computational Sciences (NYCCS). NR 45 TC 40 Z9 40 U1 0 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6044 J9 EUR PHYS J C JI Eur. Phys. J. C PD FEB PY 2011 VL 71 IS 2 AR 1564 DI 10.1140/epjc/s10052-011-1564-y PG 13 WC Physics, Particles & Fields SC Physics GA 778HI UT WOS:000291694100022 ER PT J AU St Dennis, JE Venkataraman, P He, JB John, VT Obrey, SJ Currier, RP Lebron-Colon, M Sola, FJ Meador, MA AF St Dennis, J. E. Venkataraman, Pradeep He, Jibao John, Vijay T. Obrey, Stephen J. Currier, Robert P. Lebron-Colon, Marisabel Sola, Francisco J. Meador, Michael A. TI Rod-like carbon nanostructures produced by the direct pyrolysis of alpha-cyclodextrin SO CARBON LA English DT Article ID NANOTUBES AB Carbon nanostructures were produced by the direct pyrolysis of a cyclic glucose oligosaccharide (alpha-cyclodextrin) without the use of a metal catalyst. The nanorods evolve from surfaces of structureless carbon when the precursor is carbonized at 1000 degrees C. The conversion of initially-obtained featureless carbon to the nanostructures can be controlled by the pyrolysis time. The nanorods are of diameters 14-10 nm and consist of multiple disordered curved graphite layers with relatively short persistence lengths. (C) 2010 Elsevier Ltd. All rights reserved. C1 [St Dennis, J. E.; Venkataraman, Pradeep; John, Vijay T.] Tulane Univ, Dept Chem & Biomol Engn, New Orleans, LA 70118 USA. [He, Jibao] Tulane Univ, Coordinated Instrument Facil, New Orleans, LA 70118 USA. [Obrey, Stephen J.; Currier, Robert P.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. [Lebron-Colon, Marisabel; Sola, Francisco J.; Meador, Michael A.] NASA Glenn Res Ctr, Struct & Mat Div, Cleveland, OH 44135 USA. RP John, VT (reprint author), Tulane Univ, Dept Chem & Biomol Engn, 6823 St Charles Ave, New Orleans, LA 70118 USA. EM vj@tulane.edu RI John, Vijay/G-3747-2010; VENKATARAMAN, PRADEEP/A-8648-2013; VENKATARAMAN, PRADEEP/P-6058-2014 OI VENKATARAMAN, PRADEEP/0000-0001-9679-229X FU Department of Energy [DOE-DE-FG02-05ER46243]; Advanced Materials Research Institute of the University of New Orleans through the PKSFI program; Louisiana Board of Regents, BoRSF FX Funding from Department of Energy (DOE-DE-FG02-05ER46243) is gratefully acknowledged for this work. Additional funding was provided by the Advanced Materials Research Institute of the University of New Orleans through the PKSFI program. J. St. Dennis acknowledges a Graduate Fellowship from the Louisiana Board of Regents, BoRSF, under agreement NASA/LEQSF(2005-2010)-LaSPACE and NASA/LaSPACE. NR 12 TC 5 Z9 5 U1 2 U2 25 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-6223 J9 CARBON JI Carbon PD FEB PY 2011 VL 49 IS 2 BP 718 EP 722 DI 10.1016/j.carbon.2010.09.027 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA 699KQ UT WOS:000285662700044 ER PT J AU Trac, H Gnedin, NY AF Trac, Hy Gnedin, Nickolay Y. TI Computer Simulations of Cosmic Reionization SO ADVANCED SCIENCE LETTERS LA English DT Review DE Cosmology: Theory; Large-Scale Structure of Universe; Galaxies: Formation; Intergalactic Medium; Methods: Numerical; Radiative Transfer ID SMOOTHED PARTICLE HYDRODYNAMICS; LY-ALPHA EMITTERS; LARGE-SCALE STRUCTURE; COSMOLOGICAL RADIATIVE-TRANSFER; UV LUMINOSITY FUNCTIONS; 21 CM SIGNAL; HYDROGEN REIONIZATION; HIGH-REDSHIFT; Z-SIMILAR-TO-6 QUASARS; INTERGALACTIC MEDIUM AB The cosmic reionization of hydrogen was the last major phase transition in the evolution of the universe, which drastically changed the ionization and thermal conditions in the cosmic gas. To the best of our knowledge today, this process was driven by the ultra-violet radiation from young, star-forming galaxies and from first quasars. We review the current observational constraints on cosmic reionization, as well as the dominant physical effects that control the ionization of intergalactic gas. We then focus on numerical modeling of this process with computer simulations. Over the past decade, significant progress has been made in solving the radiative transfer of ionizing photons from many sources through the highly inhomogeneous distribution of cosmic gas in the expanding universe. With modern simulations, we have finally converged on a general picture for the reionization process, but many unsolved problems still remain in this young and exciting field of numerical cosmology. C1 [Gnedin, Nickolay Y.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA. [Trac, Hy] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA. [Gnedin, Nickolay Y.] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. [Gnedin, Nickolay Y.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA. RP Gnedin, NY (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, POB 500, Batavia, IL 60510 USA. RI Trac, Hy/N-8838-2014 OI Trac, Hy/0000-0001-6778-3861 FU Institute for Theory and Computation; DOE at Fermi lab FX We thank Alexandre Amblard, Xiaohui Fan, Ilian Iliev, Mario Santos, Volker Springel, and Oliver Zahn for kind permission to use their figures in this review. Hy Trac is supported by an Institute for Theory and Computation Fellowship. Nickolay Y. Gnedin is supported in part by the DOE at Fermi lab. NR 95 TC 36 Z9 36 U1 1 U2 1 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1936-6612 J9 ADV SCI LETT JI Adv. Sci. Lett. PD FEB PY 2011 VL 4 IS 2 BP 228 EP 243 DI 10.1166/asl.2011.1214 PG 16 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 774UA UT WOS:000291410900004 ER PT J AU Ramanathan, M Darling, SB Mancini, DC AF Ramanathan, Muruganathan Darling, Seth B. Mancini, Derrick C. TI Block Copolymer Lithography as a Facile Route for Developing Nanowire-Like Arrays SO ADVANCED SCIENCE LETTERS LA English DT Article DE Block Copolymer; Lithography; Nanopatterning; Self-Assembly; Pattern Transfer; Poly(styrene-block-ferrocenyldimethylsilane) PS-b-PFS; Nanowire; Palladium; Garnet; Graphite; Graphene ID MAPPING NEURAL CIRCUITS; SILICON NANOWIRES; TRANSISTOR ARRAYS; THIN-FILMS; SEMICONDUCTING NANOWIRES; LASER-ABLATION; SOLAR-CELLS; DEVICES; INTEGRATION; ORIENTATION AB Nanowires and nanowire-like arrays have received substantial attention as a result of both their proven and potential relevance in technological applications. Among the nanowire fabrication technologies, block copolymer (BCP) lithography is currently attaining increased interest due to a number of advantages including: (a) large throughput patterning, (b) low-cost processing, (c) scalability, and d) tunable etch resistance between two or more blocks. The efficacy of BCP lithography in nanomanufacturing can be realized only after key challenges are overcome such as the ability of the polymer to wet relevant substrates, pattern perfection over macroscopic areas (for certain applications), and non-invasive procedures for pattern transfer to name a few. In this work, we demonstrate a procedure for developing nanowire-like arrays of materials with a variety of physical attributes that are emerging as candidates for modern technologies, specifically yttrium iron garnet (magnetic material), highly oriented pyrolytic graphite (carbonaceous material related to graphene), and palladium (metal). C1 [Ramanathan, Muruganathan; Darling, Seth B.; Mancini, Derrick C.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Ramanathan, M (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Ramanathan, Muruganathan/A-3641-2013 OI Ramanathan, Muruganathan/0000-0001-7008-1131 FU US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX We thank John Pearson and Ulrich Welp (Argonne) for their help with sputtering and ion-milling, respectively. The PLD deposition of YIG films were carried out at Carl Patton's laboratory at the Colorado State University by Jaydip Das and Kristen Buchanan. Use of the Center for Nanoscale Materials was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. NR 76 TC 7 Z9 7 U1 1 U2 18 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1936-6612 J9 ADV SCI LETT JI Adv. Sci. Lett. PD FEB PY 2011 VL 4 IS 2 BP 437 EP 441 DI 10.1166/asl.2011.1260 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 774UA UT WOS:000291410900024 ER PT J AU Zhang, HJ Wei, XD Kopanski, K Shiue, E Fedkiw, PS AF Zhang, Hanjun Wei, Xuedong Kopanski, Khalid Shiue, Eric Fedkiw, Peter S. TI Single-Ion Conductors for Lithium Batteries via Surface-Initiated Atom Transfer Radical Polymerization SO ADVANCED SCIENCE LETTERS LA English DT Article DE Single-Ion Conductors; Silanation; Atom Transfer Radical Polymerization; Electrolytes; Lithium Batteries ID FUMED SILICA; COMPOSITE ELECTROLYTES; NANOCOMPOSITE ELECTROLYTES; POLY(ETHYLENE OXIDE); TRANSPORT AB A benzyl chloride-terminated silane was grafted to the surface of fumed silica using a silanation reaction, such that single-ion conductors (SICs) were prepared via surface-initiated atom transfer radical polymerization (ATRP) of a lithium sulfonate-containing monomer. The relatively high-surface loading of the SICs, compared with our previous results, was attributed to two advantages: the high specific surface area of the silica substrate and the effective chain growth of ATRP mechanism compared with previously employed free-radical polymerization (FRP) mechanism. Composite electrolytes were prepared by dispersing these SICs in propylene carbonate (PC) and the maximum room-temperature conductivity of 1.5 x 10(-5) S cm(-1) was obtained at 15 wt% filler content. C1 [Zhang, Hanjun; Wei, Xuedong; Kopanski, Khalid; Shiue, Eric; Fedkiw, Peter S.] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA. RP Zhang, HJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA. NR 23 TC 2 Z9 2 U1 2 U2 19 PU AMER SCIENTIFIC PUBLISHERS PI VALENCIA PA 26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USA SN 1936-6612 J9 ADV SCI LETT JI Adv. Sci. Lett. PD FEB PY 2011 VL 4 IS 2 BP 488 EP 491 DI 10.1166/asl.2011.1254 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA 774UA UT WOS:000291410900033 ER PT J AU Ballantyne, AP Baker, PA Chambers, JQ Villalba, R Argollo, J AF Ballantyne, A. P. Baker, P. A. Chambers, J. Q. Villalba, R. Argollo, J. TI Regional Differences in South American Monsoon Precipitation Inferred from the Growth and Isotopic Composition of Tropical Trees SO EARTH INTERACTIONS LA English DT Article DE Stable isotopes; Tropical trees; Global change ID ANDEAN ICE CORES; EL-NINO; SPATIAL-PATTERNS; STABLE-ISOTOPES; OXYGEN-ISOTOPE; CENTRAL AMAZON; UNITED-STATES; DRY-FOREST; CARBON; CELLULOSE AB The authors present results on the relationship between treering proxies and regional precipitation for several sites in tropical South America. The responsiveness of oxygen isotopes (delta O-18) and seasonal growth as precipitation proxies was first validated by high-resolution sampling of a Tachigali myrmecophila from Manaus, Brazil (3.1 degrees S, 60.0 degrees W). Monthly growth of Tachigali spp. was significantly correlated with monthly precipitation. Intra-annual measurements of cellulose delta O-18 in Tachigali spp. were also significantly correlated with monthly precipitation at a lag of approximately one month. The annual ring widths of two tropical tree taxa, Cedrela odorata growing in the Amazon (12.6 degrees S, 69.2 degrees W) and Polylepis tarapacana growing in the Altiplano (22.0 degrees S, 66.0 degrees W), were validated using bomb-derived radiocarbon C-14. Estimated dates were within two to three years of bomb-inferred C-14 dates, indicating that these species exhibit annual rings but uncertainties in our chronologies remain. A multiproxy record spanning 180 years from Cedrela spp. showed a significant negative relationship between cellulose delta O-18 and January precipitation. A 150-yr record obtained from Polylepis spp. also showed a significant negative relationship between delta O-18 and March precipitation, whereas annual ring width showed a significant positive correlation with December precipitation. These proxies were combined in a multivariate framework to reconstruct past precipitation, revealing a significant increase in monsoon precipitation at the Amazon site since 1890 and a significant decrease in monsoon precipitation at the Altiplano since 1880. Proxy time series also showed spatial and temporal coherence with precipitation variability due to El Nino forcing, suggesting that oxygen isotopes and ring widths in tropical trees may be important diagnostics for identifying regional differences in the response of the tropical hydrologic cycle to anthropogenic warming. C1 [Ballantyne, A. P.; Baker, P. A.] Duke Univ, Nicholas Sch Environm & Earth Sci, Durham, NC USA. [Chambers, J. Q.] Univ Calif Berkeley, Lawrence Berkeley Lab, Climate Sci Dept, Berkeley, CA 94720 USA. [Villalba, R.] Inst Argentina Nivol Glaciol & Ciencias Ambiental, Mendoza, Argentina. [Argollo, J.] Univ Mayor de San Andres, Inst Invest Geol & Medio Ambiente, La Paz, Bolivia. RP Ballantyne, AP (reprint author), Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA. EM ashley.ballantyne@colorado.edu RI Chambers, Jeffrey/J-9021-2014; OI Chambers, Jeffrey/0000-0003-3983-7847; Villalba, Ricardo/0000-0001-8183-0310 NR 72 TC 15 Z9 15 U1 0 U2 20 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 1087-3562 J9 EARTH INTERACT JI Earth Interact. PD FEB PY 2011 VL 15 AR 5 DI 10.1175/2010EI277.1 PG 35 WC Geosciences, Multidisciplinary SC Geology GA 771GX UT WOS:000291146300001 ER PT J AU Boughezal, R Gehrmann-De Ridder, A Ritzmann, M AF Boughezal, Radja Gehrmann-De Ridder, Aude Ritzmann, Mathias TI Antenna subtraction at NNLO with hadronic initial states: double real radiation for initial-initial configurations with two quark flavours SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Jets; Hadronic Colliders; QCD ID JET CROSS-SECTIONS; TO-LEADING ORDER; AUTOMATING DIPOLE SUBTRACTION; DIFFERENTIAL-EQUATIONS METHOD; HIGGS-BOSON PRODUCTION; SECTOR DECOMPOSITION; NUMERICAL EVALUATION; HARMONIC POLYLOGARITHMS; MULTILOOP INTEGRALS; MASS SINGULARITIES AB The antenna subtraction formalism allows to calculate QCD corrections to jet observables. Within this formalism, the subtraction terms are constructed using antenna functions describing all unresolved radiation between a pair of hard radiator partons. In this paper, we focus on the subtraction terms for double real radiation contributions to jet observables in hadron-hadron collisions evaluated at NNLO. An essential ingredient to these subtraction terms are the four-parton antenna functions with both radiators in the initial state. We outline the construction of the double real subtraction terms, classify all relevant antenna functions and describe their integration over the relevant antenna phase space. For the initial-initial antenna functions with two quark flavours, we derive the phase space master integrals and obtain the integrated antennae. C1 [Boughezal, Radja] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. [Gehrmann-De Ridder, Aude; Ritzmann, Mathias] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland. RP Boughezal, R (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. EM rboughezal@hep.anl.gov; gehra@itp.phys.ethz.ch; rimathia@phys.ethz.ch OI Gehrmann-De Ridder, Aude/0000-0002-2686-9658 FU U.S. Department of Energy, Division of High Energy Physics [DE-AC02-06CH11357]; Swiss National Science Foundation (SNF) [PP0022-118864] FX This work is supported in part by the U.S. Department of Energy, Division of High Energy Physics, under contract DE-AC02-06CH11357 and by the Swiss National Science Foundation (SNF) under contract PP0022-118864. NR 84 TC 26 Z9 26 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 FEB PY 2011 IS 2 AR 098 DI 10.1007/JHEP02(2011)098 PG 39 WC Physics, Particles & Fields SC Physics GA 729HL UT WOS:000287939200020 ER PT J AU Levy, A Abramowicz, H Adamczyk, L Adamus, M Aggarwal, R Antonelli, S Antonioli, P Antonov, A Arneodo, M Aushev, V Aushev, Y Bachynska, O Bamberger, A Barakbaev, AN Barbagli, G Bari, G Barreiro, F Bartosik, N Bartsch, D Basile, M Behnke, O Behr, J Behrens, U Bellagamba, L Bertolin, A Bhadra, S Bindi, M Blohm, C Bokhonov, V Bold, T Bolilyi, O Boos, EG Borras, K Boscherini, D Bot, D Boutle, SK Brock, I Brownson, E Brugnera, R Brummer, N Bruni, A Bruni, G Brzozowska, B Bussey, PJ Butterworth, JM Bylsma, B Caldwell, A Capua, M Carlin, R Catterall, CD Chekanov, S Chwastowski, J Ciborowski, J Ciesielski, R Cifarelli, L Cindolo, F Contin, A Cooper-Sarkar, AM Coppola, N Corradi, M Corriveau, F Costa, M D'Agostini, G Dal Corso, F del Peso, J Dementiev, RK De Pasquale, S Derrick, M Devenish, RCE Dobur, D Dolgoshein, BA Dolinska, G Doyle, AT Drugakov, V Durkin, LS Dusini, S Eisenberg, Y Ermolov, PF Eskreys, A Fang, S Fazio, S Ferrando, J Ferrero, MI Figiel, J Forrest, M Foster, B Fourletov, S Gach, G Galas, A Gallo, E Garfagnini, A Geiser, A Gialas, I Gladilin, LK Gladkov, D Glasman, C Gogota, O Golubkov, YA Gottliche, P Grabowska-Bold, I Grebenyuk, J Gregor, I Grigorescu, G Grzelak, G Gueta, O Gwenlan, C Haas, T Hain, W Hamatsu, R Hart, JC Hartmann, H Hartner, G Hilger, E Hochman, D Hori, R Horton, K Huttmann, A Iacobucci, G Ibrahim, ZA Iga, Y Ingbir, R Ishitsuka, M Jakob, HP Januschek, F Jimenez, M Jones, TW Jungst, M Kadenko, I Kahle, B Kamaluddin, B Kananov, S Kanno, T Karshon, U Karstens, F Katkov, II Kaur, M Kaur, P Keramidas, A Khein, LA Kim, JY Kisielewska, D Kitamura, S Klanner, R Klein, U Koffeman, E Kooijman, P Korol, I Korzhavina, IA Kotanski, A Kotz, U Kowalski, H Kulinski, P Kuprash, O Kuze, M Lee, M Levchenko, BB Levy, A Libov, V Limentani, S Ling, TY Lisovyi, M Lobodzinska, E Lohmann, W Lohr, B Lohrmann, E Loizides, JH Long, KR Longhin, A Lontkovskyi, D Lukina, OY Luzniak, P Maeda, J Magill, S Makarenko, I Malka, J Mankel, R Margotti, A Marini, G Martin, JF Mastroberardino, A Mattingly, MCK Melzer-Pellmann, IA Mergelmeyer, S Miglioranzi, S Idris, FM Monaco, V Montanari, A Morris, JD Mujkic, K Musgrave, B Nagano, K Namsoo, T Nania, R Nicholass, D Nigro, A Ning, Y Noor, U Notz, D Nowak, RJ Nuncio-Quiroz, AE Oh, BY Okazaki, N Oliver, K Olkiewicz, K Onishchuk, Y Papageorgiu, K Parenti, A Paul, E Pawlak, JM Pawlik, B Pelfer, PG Pellegrino, A Perlanski, W Perrey, H Piotrzkowski, K Plucinski, P Pokrovskiy, NS Polini, A Proskuryakov, AS Przybycien, M Raval, A Reeder, DD Reisert, B Ren, Z Repond, J Ri, YD Robertson, A Roloff, P Ron, E Rubinsky, I Ruspa, M Sacchi, R Salii, A Samson, U Sartorelli, G Savin, AA Saxon, DH Schioppa, M Schlenstedt, S Schleper, P Schmidke, WB Schneekloth, U Schonberg, V Schorner-Sadenius, T Schwartz, J Sciulli, F Shcheglova, LM Shehzadi, R Shimizu, S Singh, I Skillicorn, IO Slominski, W Smith, WH Sola, V Solano, A Son, D Sosnovtsev, V Spiridonov, A Stadie, H Stanco, L Stern, A Stewart, TP Stifutkin, A Stopa, P Suchkov, S Susinno, G Suszycki, L Sztuk-Dambietz, J Szuba, D Szuba, J Tapper, AD Tassi, E Terron, J Theedt, T Tiecke, H Tokushuku, K Tomalak, O Tomaszewska, J Tsurugai, T Turcato, M Tymieniecka, T Uribe-Estrada, C Vazquez, M Verbytskyi, A Viazlo, O Vlasov, NN Volynets, O Walczak, R Abdullah, WATW Whitmore, JJ Whyte, J Wiggers, L Wing, M Wlasenko, M Wolf, G Wolfe, H Wrona, K Yagues-Molina, AG Yamada, S Yamazaki, Y Yoshida, R Youngman, C Zarnecki, AF Zawiejski, L Zenaiev, O Zeuner, W Zhautykov, BO Zhmak, N Zhou, C Zichichi, A Zolko, M Zotkin, DS Zulkapli, Z AF Levy, Aharon Abramowicz, H. Adamczyk, L. Adamus, M. Aggarwal, R. Antonelli, S. Antonioli, P. Antonov, A. Arneodo, M. Aushev, V. Aushev, Y. Bachynska, O. Bamberger, A. Barakbaev, A. N. Barbagli, G. Bari, G. Barreiro, F. Bartosik, N. Bartsch, D. Basile, M. Behnke, O. Behr, J. Behrens, U. Bellagamba, L. Bertolin, A. Bhadra, S. Bindi, M. Blohm, C. Bokhonov, V. Bold, T. Bolilyi, O. Boos, E. G. Borras, K. Boscherini, D. Bot, D. Boutle, S. K. Brock, I. Brownson, E. Brugnera, R. Bruemmer, N. Bruni, A. Bruni, G. Brzozowska, B. Bussey, P. J. Butterworth, J. M. Bylsma, B. Caldwell, A. Capua, M. Carlin, R. Catterall, C. D. Chekanov, S. Chwastowski, J. Ciborowski, J. Ciesielski, R. Cifarelli, L. Cindolo, F. Contin, A. Cooper-Sarkar, A. M. Coppola, N. Corradi, M. Corriveau, F. Costa, M. D'Agostini, G. Dal Corso, F. del Peso, J. Dementiev, R. K. De Pasquale, S. Derrick, M. Devenish, R. C. E. Dobur, D. Dolgoshein, B. A. Dolinska, G. Doyle, A. T. Drugakov, V. Durkin, L. S. Dusini, S. Eisenberg, Y. Ermolov, P. F. Eskreys, A. Fang, S. Fazio, S. Ferrando, J. Ferrero, M. I. Figiel, J. Forrest, M. Foster, B. Fourletov, S. Gach, G. Galas, A. Gallo, E. Garfagnini, A. Geiser, A. Gialas, I. Gladilin, L. K. Gladkov, D. Glasman, C. Gogota, O. Golubkov, Yu. A. Goettliche, P. Grabowska-Bold, I. Grebenyuk, J. Gregor, I. Grigorescu, G. Grzelak, G. Gueta, O. Gwenlan, C. Haas, T. Hain, W. Hamatsu, R. Hart, J. C. Hartmann, H. Hartner, G. Hilger, E. Hochman, D. Hori, R. Horton, K. Huettmann, A. Iacobucci, G. Ibrahim, Z. A. Iga, Y. Ingbir, R. Ishitsuka, M. Jakob, H.-P. Januschek, F. Jimenez, M. Jones, T. W. Juengst, M. Kadenko, I. Kahle, B. Kamaluddin, B. Kananov, S. Kanno, T. Karshon, U. Karstens, F. Katkov, I. I. Kaur, M. Kaur, P. Keramidas, A. Khein, L. A. Kim, J. Y. Kisielewska, D. Kitamura, S. Klanner, R. Klein, U. Koffeman, E. Kooijman, P. Korol, Ie. Korzhavina, I. A. Kotanski, A. Koetz, U. Kowalski, H. Kulinski, P. Kuprash, O. Kuze, M. Lee, M. Levchenko, B. B. Levy, A. Libov, V. Limentani, S. Ling, T. Y. Lisovyi, M. Lobodzinska, E. Lohmann, W. Loehr, B. Lohrmann, E. Loizides, J. H. Long, K. R. Longhin, A. Lontkovskyi, D. Lukina, O. Yu. Luzniak, P. Maeda, J. Magill, S. Makarenko, I. Malka, J. Mankel, R. Margotti, A. Marini, G. Martin, J. F. Mastroberardino, A. Mattingly, M. C. K. Melzer-Pellmann, I.-A. Mergelmeyer, S. Miglioranzi, S. Idris, F. Mohamad Monaco, V. Montanari, A. Morris, J. D. Mujkic, K. Musgrave, B. Nagano, K. Namsoo, T. Nania, R. Nicholass, D. Nigro, A. Ning, Y. Noor, U. Notz, D. Nowak, R. J. Nuncio-Quiroz, A. E. Oh, B. Y. Okazaki, N. Oliver, K. Olkiewicz, K. Onishchuk, Yu. Papageorgiu, K. Parenti, A. Paul, E. Pawlak, J. M. Pawlik, B. Pelfer, P. G. Pellegrino, A. Perlanski, W. Perrey, H. Piotrzkowski, K. Plucinski, P. Pokrovskiy, N. S. Polini, A. Proskuryakov, A. S. Przybycien, M. Raval, A. Reeder, D. D. Reisert, B. Ren, Z. Repond, J. Ri, Y. D. Robertson, A. Roloff, P. Ron, E. Rubinsky, I. Ruspa, M. Sacchi, R. Salii, A. Samson, U. Sartorelli, G. Savin, A. A. Saxon, D. H. Schioppa, M. Schlenstedt, S. Schleper, P. Schmidke, W. B. Schneekloth, U. Schoenberg, V. Schoerner-Sadenius, T. Schwartz, J. Sciulli, F. Shcheglova, L. M. Shehzadi, R. Shimizu, S. Singh, I. Skillicorn, I. O. Slominski, W. Smith, W. H. Sola, V. Solano, A. Son, D. Sosnovtsev, V. Spiridonov, A. Stadie, H. Stanco, L. Stern, A. Stewart, T. P. Stifutkin, A. Stopa, P. Suchkov, S. Susinno, G. Suszycki, L. Sztuk-Dambietz, J. Szuba, D. Szuba, J. Tapper, A. D. Tassi, E. Terron, J. Theedt, T. Tiecke, H. Tokushuku, K. Tomalak, O. Tomaszewska, J. Tsurugai, T. Turcato, M. Tymieniecka, T. Uribe-Estrada, C. Vazquez, M. Verbytskyi, A. Viazlo, O. Vlasov, N. N. Volynets, O. Walczak, R. Abdullah, W. A. T. Wan Whitmore, J. J. Whyte, J. Wiggers, L. Wing, M. Wlasenko, M. Wolf, G. Wolfe, H. Wrona, K. Yaguees-Molina, A. G. Yamada, S. Yamazaki, Y. Yoshida, R. Youngman, C. Zarnecki, A. F. Zawiejski, L. Zenaiev, O. Zeuner, W. Zhautykov, B. O. Zhmak, N. Zhou, C. Zichichi, A. Zolko, M. Zotkin, D. S. Zulkapli, Z. CA ZEUS Collaboration TI Study of tau-pair production at HERA SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE Lepton-Nucleon Scattering ID CENTRAL TRACKING DETECTOR; ZEUS BARREL CALORIMETER; HIGH TRANSVERSE-MOMENTA; EP COLLISIONS; HADRON-COLLISIONS; LEPTON PRODUCTION; DESIGN; CONSTRUCTION; PERFORMANCE; SYSTEM AB A study of events containing two tau leptons with high transverse momentum has been performed with the ZEUS detector at HERA, using a data sample corresponding to an integrated luminosity of 0.33 fb(-1). The tau candidates were identified from their decays into electrons, muons or hadronic jets. The number of tau-pair candidates has been compared with the prediction from the Standard Model, where the largest contribution is expected from Bethe-Heitler processes. The total visible cross section was extracted. Standard Model expectations agree well with the measured distributions, also at high invariant mass of the tau pair. C1 [Levy, Aharon; Chekanov, S.; Derrick, M.; Magill, S.; Musgrave, B.; Nicholass, D.; Repond, J.; Yoshida, R.] Argonne Natl Lab, Argonne, IL 60439 USA. [Mattingly, M. C. K.] Andrews Univ, Berrien Springs, MI 49104 USA. [Antonelli, S.; Antonioli, P.; Bari, G.; Bellagamba, L.; Bindi, M.; Boscherini, D.; Bruni, A.; Bruni, G.; Cifarelli, L.; Cindolo, F.; Contin, A.; Corradi, M.; De Pasquale, S.; Iacobucci, G.; Margotti, A.; Nania, R.; Polini, A.; Sartorelli, G.; Zichichi, A.] INFN Bologna, Bologna, Italy. [Antonelli, S.; Bindi, M.; Cifarelli, L.; Contin, A.; De Pasquale, S.; Sartorelli, G.; Zichichi, A.] Univ Bologna, Bologna, Italy. [Bartsch, D.; Brock, I.; Hartmann, H.; Hilger, E.; Jakob, H.-P.; Juengst, M.; Mergelmeyer, S.; Nuncio-Quiroz, A. E.; Paul, E.; Samson, U.; Schoenberg, V.; Shehzadi, R.; Wlasenko, M.] Univ Bonn, Inst Phys, Bonn, Germany. [Morris, J. D.] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England. [Aggarwal, R.; Kaur, M.; Kaur, P.; Singh, I.] Panjab Univ, Dept Phys, Chandigarh, India. [Capua, M.; Fazio, S.; Mastroberardino, A.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Dept Phys, Cosenza, Italy. [Capua, M.; Fazio, S.; Mastroberardino, A.; Schioppa, M.; Susinno, G.; Tassi, E.] Ist Nazl Fis Nucl, Cosenza, Italy. [Kim, J. Y.] Chonnam Natl Univ, Inst Universe & Elementary Particles, Kwangju, South Korea. [Ibrahim, Z. A.; Kamaluddin, B.; Idris, F. Mohamad; Abdullah, W. A. T. Wan; Zulkapli, Z.] Univ Malaya, Jabatan Fizik, Kuala Lumpur 50603, Malaysia. [Ning, Y.; Ren, Z.; Sciulli, F.] Columbia Univ, Nevis Labs, New York, NY 10027 USA. [Chwastowski, J.; Eskreys, A.; Figiel, J.; Galas, A.; Olkiewicz, K.; Pawlik, B.; Stopa, P.; Zawiejski, L.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland. [Adamczyk, L.; Bold, T.; Gach, G.; Grabowska-Bold, I.; Kisielewska, D.; Przybycien, M.; Suszycki, L.] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Krakow, Poland. [Kotanski, A.; Slominski, W.] Jagellonian Univ, Dept Phys, Krakow, Poland. [Bachynska, O.; Behnke, O.; Behr, J.; Behrens, U.; Blohm, C.; Borras, K.; Bot, D.; Ciesielski, R.; Coppola, N.; Fang, S.; Geiser, A.; Goettliche, P.; Grebenyuk, J.; Gregor, I.; Haas, T.; Hain, W.; Huettmann, A.; Januschek, F.; Kahle, B.; Katkov, I. I.; Klein, U.; Koetz, U.; Kowalski, H.; Libov, V.; Lisovyi, M.; Lobodzinska, E.; Loehr, B.; Mankel, R.; Melzer-Pellmann, I.-A.; Miglioranzi, S.; Montanari, A.; Mujkic, K.; Namsoo, T.; Notz, D.; Parenti, A.; Raval, A.; Roloff, P.; Rubinsky, I.; Schneekloth, U.; Schoerner-Sadenius, T.; Spiridonov, A.; Szuba, D.; Szuba, J.; Theedt, T.; Tomaszewska, J.; Verbytskyi, A.; Wolf, G.; Wrona, K.; Yaguees-Molina, A. G.; Youngman, C.; Zeuner, W.] DESY, D-2000 Hamburg, Germany. [Drugakov, V.; Lohrmann, E.; Schlenstedt, S.] DESY, Zeuthen, Germany. [Barbagli, G.; Gallo, E.; Pelfer, P. G.] Ist Nazl Fis Nucl, I-50125 Florence, Italy. [Pelfer, P. G.] Univ Florence, Florence, Italy. [Bamberger, A.; Dobur, D.; Karstens, F.; Vlasov, N. N.] Univ Freiburg, Fak Phys, Freiburg, Germany. [Bussey, P. J.; Doyle, A. T.; Forrest, M.; Saxon, D. H.; Skillicorn, I. O.] Univ Glasgow, Sch Phys & Astron, Glasgow, Lanark, Scotland. [Gialas, I.; Papageorgiu, K.] Univ Aegean, Dept Engn Management & Finance, Chios, Greece. [Klanner, R.; Lohmann, W.; Perrey, H.; Schleper, P.; Stadie, H.; Sztuk-Dambietz, J.; Turcato, M.] Univ Hamburg, Inst Expt Phys, Hamburg, Germany. [Long, K. R.; Tapper, A. D.] Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England. [Nagano, K.; Tokushuku, K.; Yamada, S.; Yamazaki, Y.] Natl Lab High Energy Phys, KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 305, Japan. [Barakbaev, A. N.; Boos, E. G.; Pokrovskiy, N. 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[Barreiro, F.; del Peso, J.; Glasman, C.; Jimenez, M.; Ron, E.; Terron, J.; Uribe-Estrada, C.] Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain. [Corriveau, F.; Schwartz, J.; Zhou, C.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. [Tsurugai, T.] Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan. [Antonov, A.; Dolgoshein, B. A.; Gladkov, D.; Sosnovtsev, V.; Stifutkin, A.; Suchkov, S.] Moscow Engn Phys Inst, Moscow 115409, Russia. [Dementiev, R. K.; Ermolov, P. F.; Gladilin, L. K.; Golubkov, Yu. A.; Khein, L. A.; Korzhavina, I. A.; Levchenko, B. B.; Lukina, O. Yu.; Proskuryakov, A. S.; Shcheglova, L. M.; Zotkin, D. S.] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow, Russia. [Abramowicz, H.; Caldwell, A.; Reisert, B.; Schmidke, W. B.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany. [Dusini, S.; Grigorescu, G.; Keramidas, A.; Koffeman, E.; Kooijman, P.; Pellegrino, A.; Tiecke, H.; Vazquez, M.; Wiggers, L.] Univ Amsterdam, Amsterdam, Netherlands. [Grigorescu, G.; Keramidas, A.; Koffeman, E.; Kooijman, P.; Pellegrino, A.; Tiecke, H.; Vazquez, M.; Wiggers, L.] NIKHEF H, NL-1009 DB Amsterdam, Netherlands. [Bruemmer, N.; Bylsma, B.; Durkin, L. S.; Lee, M.; Ling, T. Y.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Cooper-Sarkar, A. M.; Devenish, R. C. E.; Ferrando, J.; Foster, B.; Gwenlan, C.; Horton, K.; Oliver, K.; Robertson, A.; Walczak, R.] Univ Oxford, Dept Phys, Oxford, England. [Basile, M.; Bertolin, A.; Brugnera, R.; Carlin, R.; Dal Corso, F.; Garfagnini, A.; Limentani, S.; Longhin, A.; Stanco, L.] Ist Nazl Fis Nucl, Padua, Italy. [Brugnera, R.; Carlin, R.; Garfagnini, A.; Limentani, S.] Univ Padua, Dipartimento Fis, Padua, Italy. [Oh, B. Y.; Whitmore, J. J.] Penn State Univ, Dept Phys, University Pk, PA USA. [Iga, Y.] Polytech Univ, Sagamihara, Kanagawa, Japan. [D'Agostini, G.; Marini, G.; Nigro, A.] Ist Nazl Fis Nucl, Rome, Italy. [D'Agostini, G.; Marini, G.; Nigro, A.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. [Hart, J. C.] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. [Abramowicz, H.; Gueta, O.; Ingbir, R.; Kananov, S.; Levy, A.; Stern, A.] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Phys, IL-69978 Tel Aviv, Israel. [Ishitsuka, M.; Kanno, T.; Kuze, M.; Maeda, J.] Tokyo Inst Technol, Dept Phys, Tokyo 152, Japan. [Hori, R.; Okazaki, N.; Shimizu, S.] Univ Tokyo, Dept Phys, Tokyo 113, Japan. [Hamatsu, R.; Kitamura, S.; Ri, Y. D.] Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan. [Arneodo, M.; Costa, M.; Ferrero, M. I.; Monaco, V.; Ruspa, M.; Sacchi, R.; Sola, V.; Solano, A.] Ist Nazl Fis Nucl, I-10125 Turin, Italy. [Costa, M.; Ferrero, M. I.; Monaco, V.; Sacchi, R.; Sola, V.; Solano, A.] Univ Turin, Turin, Italy. [Arneodo, M.; Ruspa, M.] Univ Piemonte Orientale, Novara, Italy. [Fourletov, S.; Martin, J. F.; Stewart, T. P.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. [Boutle, S. K.; Butterworth, J. M.; Jones, T. W.; Loizides, J. H.; Wing, M.] UCL, Dept Phys & Astron, London, England. [Brzozowska, B.; Ciborowski, J.; Grzelak, G.; Kulinski, P.; Luzniak, P.; Malka, J.; Nowak, R. J.; Pawlak, J. M.; Perlanski, W.; Zarnecki, A. F.] Univ Warsaw, Fac Phys, Warsaw, Poland. [Adamus, M.; Plucinski, P.; Tymieniecka, T.] Inst Nucl Studies, Warsaw, Poland. [Eisenberg, Y.; Hochman, D.; Karshon, U.] Weizmann Inst Sci,, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel. [Brownson, E.; Reeder, D. D.; Savin, A. A.; Smith, W. H.; Wolfe, H.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. [Bhadra, S.; Catterall, C. D.; Hartner, G.; Noor, U.; Whyte, J.] York Univ, Dept Phys, N York, ON M3J 1P3, Canada. [Chwastowski, J.] Cracow Univ Technol, Fac Phys Math & Appl Comp Sci, Krakow, Poland. [Ciborowski, J.] Univ Lodz, PL-90131 Lodz, Poland. [Spiridonov, A.] Inst Theoret & Expt Phys, Moscow 117259, Russia. [Szuba, J.] AGH Univ Sci & Technol, FPACS, Krakow, Poland. Cardinal Stefan Wyszynski Univ, Warsaw, Poland. [Szuba, D.] INP, Krakow, Poland. Max Planck Inst Phys & Astrophys, Munich, Germany. [Tymieniecka, T.] Univ Podlasie, Siedlce, Poland. RP Levy, A (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM levy@alzt.tau.ac.il RI dusini, stefano/J-3686-2012; Doyle, Anthony/C-5889-2009; Capua, Marcella/A-8549-2015; Gladilin, Leonid/B-5226-2011; Katkov, Igor/E-2627-2012; Fazio, Salvatore /G-5156-2010; Tassi, Enrico/K-3958-2015; Suchkov, Sergey/M-6671-2015; Levchenko, B./D-9752-2012; Proskuryakov, Alexander/J-6166-2012; Dementiev, Roman/K-7201-2012; Ferrando, James/A-9192-2012; De Pasquale, Salvatore/B-9165-2008; Korzhavina, Irina/D-6848-2012; Wiggers, Leo/B-5218-2015 OI dusini, stefano/0000-0002-1128-0664; Doyle, Anthony/0000-0001-6322-6195; Capua, Marcella/0000-0002-2443-6525; Arneodo, Michele/0000-0002-7790-7132; Chwastowski, Janusz/0000-0002-6190-8376; Longhin, Andrea/0000-0001-9103-9936; Raval, Amita/0000-0003-0164-4337; Gladilin, Leonid/0000-0001-9422-8636; Katkov, Igor/0000-0003-3064-0466; Ferrando, James/0000-0002-1007-7816; De Pasquale, Salvatore/0000-0001-9236-0748; Wiggers, Leo/0000-0003-1060-0520 FU DESY directorate FX We appreciate the contributions to the construction and maintenance of the ZEUS detector of many people who are not listed as authors. The HERA machine group and the DESY computing staff are especially acknowledged for their success in providing excellent operation of the collider and data-analysis environment. We thank the DESY directorate for their strong support and encouragement. NR 34 TC 1 Z9 1 U1 0 U2 13 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 FEB PY 2011 IS 2 AR 117 DI 10.1007/JHEP02(2011)117 PG 23 WC Physics, Particles & Fields SC Physics GA 729HL UT WOS:000287939200001 ER PT J AU Charlet, L Morin, G Rose, J Wang, YH Auffan, M Burnol, A Fernandez-Martinez, A AF Charlet, Laurent Morin, Guillaume Rose, Jerome Wang, Yuheng Auffan, Melanie Burnol, Andre Fernandez-Martinez, Alejandro TI Reactivity at (nano)particle-water interfaces, redox processes, and arsenic transport in the environment SO COMPTES RENDUS GEOSCIENCE LA English DT Article DE Arsenic; Aquifers; Bioavailability; Water treatment; Speciation; Adsorption; Experimental artifacts; Molecular mechanism; XAFS spectroscopy; Molecular dynamics ID X-RAY-ABSORPTION; NATURAL ORGANIC-MATTER; ACID-MINE DRAINAGE; SURFACE-CHEMISTRY; GREEN-RUST; DISORDERED MACKINAWITE; SPECTROSCOPIC EVIDENCE; EXAFS SPECTROSCOPY; ALUMINUM-CHLORIDE; CONTAMINATED SOIL AB Massive deleterious impacts to human health are resulting from the use of arsenic-bearing groundwaters in South-East Asia deltas and elsewhere in the world for drinking, cooking and/or irrigation. In Bangladesh alone, a fifth of all deaths are linked to arsenicosis. In the natural and engineered subsurface environment, the fate of arsenic is, to a large extent, controlled by redox potential, pH, as well as total iron, sulfur and carbonate content, via sorption and coprecipitation on a variety of natural and engineered (nano)particles. In the present article, we address: (1) new insights in the sorption mechanisms of As on Fe(II) and Fe(III) nanophases recognized to play an important role in the microbial cycling of As and Fe; (2) artifacts often encountered in field and laboratory studies of As speciation due to the extreme redox sensitivity of the Fe-As-O-H phases; and (3) as a conclusion, the implications for water treatment. Indeed the specific reactivity of nanoparticles accounts not only for the As bioavailability within soils and aquifers, but also opens new avenues in water treatment. (C) 2011 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved. C1 [Charlet, Laurent; Burnol, Andre; Fernandez-Martinez, Alejandro] Univ Grenoble 1, ISTerre, F-38041 Grenoble, France. [Charlet, Laurent; Fernandez-Martinez, Alejandro] CNRS, F-38041 Grenoble, France. [Morin, Guillaume; Wang, Yuheng] CNRS UPMC UPD IPGP UMR7590, IMPMC, F-75015 Paris, France. [Rose, Jerome; Auffan, Melanie] Univ Aix Marseille, CEREGE, F-13545 Aix En Provence, France. [Rose, Jerome; Auffan, Melanie] CNRS, F-13545 Aix En Provence, France. [Burnol, Andre] Bur Rech Geol & Minieres, F-45060 Orleans 02, France. [Fernandez-Martinez, Alejandro] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Charlet, L (reprint author), Univ Grenoble 1, ISTerre, POB 53, F-38041 Grenoble, France. EM charlet38@gmail.com; guillaume.morin@impmc.upmc.fr; rose@arbois.cerege.fr; auffan@cerege.fr; a.burnol@brgm.fr; afernandez-martinez@lbl.gov RI Fernandez-Martinez, Alejandro/B-4042-2010; Wang, Yuheng/K-3988-2012; Beamline, FAME/G-9313-2012 OI Fernandez-Martinez, Alejandro/0000-0001-5073-9629; Wang, Yuheng/0000-0002-1786-5970; FU IUF; ANDRA; AQUATRAIN; CALIBRE EU networks; EC2CO CNRS/INSU; EC2CO-CYTRIX CNRS/INSU; ACI/FNS [3033]; SESAME [1775]; NSF [CHE-0431425] FX We gratefully acknowledge Georges Calas and Gordon E. Brown Jr., for having invited us to participate to this special issue, and for their precious help in the editing of this manuscript. LC acknowledges partial financial support by IUF, ANDRA, AQUATRAIN and CALIBRE EU networks and by EC2CO CNRS/INSU program. The work done by GM was funded by EC2CO-CYTRIX CNRS/INSU program, by ACI/FNS grant #3033, and by SESAME IdF grant #1775. Support was also provided by NSF grant CHE-0431425 (Stanford Molecular Environmental Science Institute). The XAS work was performed at the European Synchrotron Radiation Facilities, Grenoble, France and Stanford Synchrotron Radiation Lightsource, Stanford, USA. We are grateful to the machine and beamline groups whose outstanding efforts have made these experiments possible. NR 116 TC 31 Z9 31 U1 2 U2 84 PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER PI PARIS PA 23 RUE LINOIS, 75724 PARIS, FRANCE SN 1631-0713 J9 CR GEOSCI JI C. R. Geosci. PD FEB-MAR PY 2011 VL 343 IS 2-3 SI SI BP 123 EP 139 DI 10.1016/j.crte.2010.11.005 PG 17 WC Geosciences, Multidisciplinary SC Geology GA 754TR UT WOS:000289880800004 ER PT J AU Wiley, HS AF Wiley, H. Steven TI At the Tipping Point SO SCIENTIST LA English DT Editorial Material C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RP Wiley, HS (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SCIENTIST INC PI PHILADELPHIA PA 400 MARKET ST, STE 1250, PHILADELPHIA, PA 19106 USA SN 0890-3670 J9 SCIENTIST JI Scientist PD FEB PY 2011 VL 25 IS 2 BP 28 EP 28 PG 1 WC Information Science & Library Science; Multidisciplinary Sciences SC Information Science & Library Science; Science & Technology - Other Topics GA 717MH UT WOS:000287051100013 ER PT J AU Randrup, J AF Randrup, Jorgen TI SPINODAL PHASE SEPARATION IN NUCLEAR COLLISIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article ID DECOMPOSITION; DYNAMICS AB Spinodal amplification provides a mechanism by which the spatial symmetry of an unstable system is broken as it spontaneously separates into its thermodynamically coexisting phases. This general phenomenon has been exploited to signal the nuclear liquid-gas phase at in nuclear collision experiments at medium energies and it may also be of use in relativistic collisions for exploring the expected first-order confinement transition. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Randrup, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Cyclotron Rd, Berkeley, CA 94720 USA. EM JRandrup@LBL.gov FU Office of Energy Research, Office of High Energy and Nuclear Physics, Nuclear Physics Division of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work is dedicated to the memory of Wladek Swiatecki who provided continual support and inspiration through so many years. It was funded by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Nuclear Physics Division of the U.S. Department of Energy (Contract No. DE-AC02-05CH11231). NR 14 TC 0 Z9 0 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 EI 1793-6608 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD FEB PY 2011 VL 20 IS 2 SI SI BP 299 EP 307 DI 10.1142/S021830131101765X PG 9 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 745IB UT WOS:000289158000015 ER PT J AU Hayes, AB Cline, D Wu, CY Hurst, AM Carpenter, MP Greene, JP Janssens, RVF Lauritsen, T Seweryniak, D Zhu, S Karamian, SA Walker, PM Swan, TPD Rigby, SV Cullen, DM Lumley, NM Mason, P Carroll, JJ Detwiler, B Harle, T Mills, I Trees, G AF Hayes, A. B. Cline, D. Wu, C. Y. Hurst, A. M. Carpenter, M. P. Greene, J. P. Janssens, R. V. F. Lauritsen, T. Seweryniak, D. Zhu, S. Karamian, S. A. Walker, P. M. Swan, T. P. D. Rigby, S. V. Cullen, D. M. Lumley, N. M. Mason, P. Carroll, J. J. Detwiler, B. Harle, T. Mills, I. Trees, G. TI NEW STRUCTURES IN (HF)-H-178 AND COULOMB EXCITATION OF ISOMERS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article ID STATES AB A 985 MeV Hf-178 beam was Coulomb excited by a Pb-208 target at the ATLAS accelerator of Argonne National Laboratory. Gammasphere and the CHICO particle detector recorded particle-gamma coincidence data. The aim was to populate and determine the mechanism of previously observed Coulomb excitation of the K-pi = 6(+) (t(1/2) = 77 us),8(-) (4 s) and 16(+) (31 y) isomer bands. New rotational bands were identified including an aligned band which appears to mix with the ground-state band (GSB) and the gamma-vibrational band above similar to 12 h of angular momentum. Newly observed gamma-decay transitions into the three isomer bands may elucidate the K-mixing which allows Coulomb excitation of these isomer bands, but direct decays from the GSB into the 16(+) isomer band have not yet been confirmed. C1 [Hayes, A. B.; Cline, D.] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA. [Wu, C. Y.; Hurst, A. M.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Carpenter, M. P.; Greene, J. P.; Janssens, R. V. F.; Lauritsen, T.; Seweryniak, D.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA. [Karamian, S. A.] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia. [Walker, P. M.; Swan, T. P. D.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England. [Rigby, S. V.] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England. [Cullen, D. M.; Lumley, N. M.; Mason, P.] Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England. [Carroll, J. J.; Detwiler, B.; Harle, T.; Mills, I.; Trees, G.] Youngstown State Univ, Dept Phys, Youngstown, OH 44555 USA. RP Hayes, AB (reprint author), Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA. RI Carpenter, Michael/E-4287-2015 OI Carpenter, Michael/0000-0002-3237-5734 FU NSF; AFOSR (Rochester); DTRA [HDTRA1-08-1-0014]; U.S. Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357]; STEP (Surrey, Liverpool and Manchester); AWE plc; U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344] FX This work was sponsored by the NSF and the AFOSR (Rochester), DTRA Contract HDTRA1-08-1-0014 (Youngstown and SAK), the U.S. Department of Energy, Office of Nuclear Physics under Contract DE-AC02-06CH11357 (ANL), the STEP (Surrey, Liverpool and Manchester) and the AWE plc (Surrey). The LLNL work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. NR 6 TC 2 Z9 2 U1 0 U2 2 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 EI 1793-6608 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD FEB PY 2011 VL 20 IS 2 SI SI BP 474 EP 481 DI 10.1142/S0218301311017879 PG 8 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 745IB UT WOS:000289158000037 ER PT J AU Staszczak, A Baran, A Nazarewicz, W AF Staszczak, A. Baran, A. Nazarewicz, W. TI BREAKING OF AXIAL AND REFLECTION SYMMETRIES IN SPONTANEOUS FISSION OF FERMIUM ISOTOPES SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article ID SUPERHEAVY NUCLEI; DEFORMATION SPACE; POTENTIAL-ENERGY; BIMODAL FISSION; HEAVY-NUCLEI; BARRIERS; SKYRME; SHAPES; FORCE AB The nuclear fission phenomenon is a magnificent example of a quantal collective motion during which the nucleus evolves in a multidimensional space representing shapes with different geometries. The triaxial degrees of freedom are usually important around the inner fission barrier, and reduce the fission barrier height by several MeV. Beyond the inner barrier, reflection-asymmetric shapes corresponding to asymmetric elongated fragments come into play. We discuss the interplay between different symmetry breaking mechanisms in the case of even-even fermium isotopes using the Skyrme HFB formalism. C1 [Staszczak, A.; Baran, A.] Marie Curie Sklodowska Univ, Inst Phys, Dept Theoret Phys, PL-20031 Lublin, Poland. [Staszczak, A.; Baran, A.; Nazarewicz, W.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. [Staszczak, A.; Baran, A.; Nazarewicz, W.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Nazarewicz, W.] Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland. RP Staszczak, A (reprint author), Marie Curie Sklodowska Univ, Inst Phys, Dept Theoret Phys, Pl M Curie Sklodowskiej 1, PL-20031 Lublin, Poland. FU U.S. Department of Energy [DE-FC02-09ER41583]; National Nuclear Security Administration through DOE [DE-FG52-09NA29461]; NEUP [DE-AC07-05ID14517, 00091100]; Polish Ministry of Science and Higher Education [N N202231137] FX This work was supported by the U.S. Department of Energy under Contract No. DE-FC02-09ER41583 (UNEDF SciDAC Collaboration); by the National Nuclear Security Administration under the Stewardship Science Academic Alliances program through DOE Grant DE-FG52-09NA29461; by the NEUP grant, DE-AC07-05ID14517 (sub award 00091100); and by the Polish Ministry of Science and Higher Education Contract N N202231137. Computational resources were provided by the National Center for Computational Sciences at Oak Ridge National Laboratory. NR 20 TC 8 Z9 8 U1 0 U2 1 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 EI 1793-6608 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD FEB PY 2011 VL 20 IS 2 SI SI BP 552 EP 556 DI 10.1142/S0218301311017995 PG 5 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 745IB UT WOS:000289158000049 ER PT J AU Baran, A Staszczak, A Nazarewicz, W AF Baran, A. Staszczak, A. Nazarewicz, W. TI FISSION HALF LIVES OF FERMIUM ISOTOPES WITHIN SKYRME HARTREE-FOCK-BOGOLIUBOV THEORY SO INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS LA English DT Article ID HARMONIC-OSCILLATOR BASIS; DOUBLE-HUMP BARRIER; MEAN-FIELD THEORY; MASS PARAMETERS; BOGOLYUBOV EQUATIONS; SUPERHEAVY NUCLEI; PENETRABILITY; PROGRAM; HFODD; NEUTRON AB Nuclear fission barriers, mass parameters and spontaneous fission half lives of fermium isotopes calculated in a framework of the Skyrme Hartree-Fock-Bogoliubov model with the SkM* force are discussed. Zero-point energy corrections in the ground state are determined for each nucleus using the Gaussian overlap approximation of the generator coordinate method and in the cranking formalism. Results of spontaneous fission half lives are compared to experimental data. C1 [Baran, A.; Staszczak, A.] Marie Curie Sklodowska Univ, Inst Phys, Dept Theoret Phys, PL-20031 Lublin, Poland. [Baran, A.; Staszczak, A.; Nazarewicz, W.] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA. [Baran, A.; Staszczak, A.; Nazarewicz, W.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA. [Nazarewicz, W.] Warsaw Univ, Inst Theoret Phys, Warsaw, Poland. RP Baran, A (reprint author), Marie Curie Sklodowska Univ, Inst Phys, Dept Theoret Phys, Pl M Curie Sklodowskiej 1, PL-20031 Lublin, Poland. FU U.S. Department of Energy [DE-FC02-09ER41583]; University of Tennesse [DE-FG02-96ER40963]; National Nuclear Security Administration through DOE [DE-FG52-09NA29461]; NEUP [DE-AC07-05ID14517, 00091100]; Polish Ministry of Science and Higher Education [N N202231137] FX This work was supported by the U.S. Department of Energy under Contract No. DE-FC02-09ER41583 (UNEDF SciDAC Collaboration), DE-FG02-96ER40963 (University of Tennesse); by the National Nuclear Security Administration under the Stewardship Science Academic Alliances program through DOE Grant DE-FG52-09NA29461; by the NEUP grant, DE-AC07-05ID14517 (sub award 00091100); by the Polish Ministry of Science and Higher Education Contract N N202231137. Computational resources were provided by the National Center for Computational Sciences at Oak Ridge National Laboratory. NR 38 TC 3 Z9 3 U1 1 U2 1 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0218-3013 EI 1793-6608 J9 INT J MOD PHYS E JI Int. J. Mod. Phys. E-Nucl. Phys. PD FEB PY 2011 VL 20 IS 2 SI SI BP 557 EP 564 DI 10.1142/S0218301311018009 PG 8 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 745IB UT WOS:000289158000050 ER PT J AU Morris, JJ Szul, MJ Johnson, ZI Keller, M Zinser, ER AF Morris, J. J. Szul, M. J. Johnson, Z., I Keller, M. Zinser, E. R. TI EVOLUTION TOWARDS DEPENDENCY FOR A FREE-LIVING ORGANISM: HETEROTROPHIC "HELPERS" INCREASE RESISTANCE OF PROCHLOROCOCCUS TO ECOLOGICALLY RELEVANT CONCENTRATIONS OF HYDROGEN PEROXIDE SO JOURNAL OF PHYCOLOGY LA English DT Meeting Abstract C1 [Morris, J. J.; Szul, M. J.; Zinser, E. R.] Univ Tennessee, Knoxville, TN 37996 USA. [Johnson, Z., I] Duke Univ, Marine Lab, Durham, NC 27706 USA. [Keller, M.] Oak Ridge Natl Lab, Oak Ridge, TN USA. EM jmorri40@utk.edu; mszul@utk.edu; zij@duke.edu; kellerm@ornl.gov; ezinser@utk.edu RI Keller, Martin/C-4416-2012 NR 0 TC 0 Z9 0 U1 0 U2 3 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0022-3646 J9 J PHYCOL JI J. Phycol. PD FEB PY 2011 VL 47 SU 1 SI SI BP 5 EP 5 PG 1 WC Plant Sciences; Marine & Freshwater Biology SC Plant Sciences; Marine & Freshwater Biology GA 721NJ UT WOS:000287361300010 ER PT J AU Yang, JC Pate, RC Morello, JE Fishman, DB Sarisky-Reed, VA AF Yang, J. C. Pate, R. C. Morello, J. E. Fishman, D. B. Sarisky-Reed, V. A. TI AN OVERVIEW OF ALGAL BIOFUELS RESEARCH AND DEVELOPMENT EFFORTS AT THE DOE BIOMASS PROGRAM SO JOURNAL OF PHYCOLOGY LA English DT Meeting Abstract C1 [Yang, J. C.; Pate, R. C.; Morello, J. E.; Fishman, D. B.; Sarisky-Reed, V. A.] US DOE, Off Energy Efficiency & Renewable Energy, Biomass Program, Washington, DC 20585 USA. EM joyce.yang@ee.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 2 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0022-3646 J9 J PHYCOL JI J. Phycol. PD FEB PY 2011 VL 47 SU 1 SI SI BP 54 EP 54 PG 1 WC Plant Sciences; Marine & Freshwater Biology SC Plant Sciences; Marine & Freshwater Biology GA 721NJ UT WOS:000287361300116 ER PT J AU Bhaduri, B Rose, A Myers, A Goss Eng, A AF Bhaduri, B. Rose, A. Myers, A. Goss Eng, A. TI ACCELERATING RESEARCH AND DEVELOPMENT FOR ALGAL BIOFUELS THROUGH A COLLABORATIVE APPROACH SO JOURNAL OF PHYCOLOGY LA English DT Meeting Abstract C1 [Bhaduri, B.; Rose, A.; Myers, A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Goss Eng, A.] US DOE, Washington, DC USA. EM bhaduribl@ornl.gov; myersat@ornl.gov; Alison.GossEng@ee.doe.gov NR 0 TC 0 Z9 0 U1 1 U2 3 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0022-3646 J9 J PHYCOL JI J. Phycol. PD FEB PY 2011 VL 47 SU 1 SI SI BP 55 EP 55 PG 1 WC Plant Sciences; Marine & Freshwater Biology SC Plant Sciences; Marine & Freshwater Biology GA 721NJ UT WOS:000287361300117 ER PT J AU Chun, J McCloy, JS Crum, JV Sundaram, SK AF Chun, Jaehun McCloy, John S. Crum, Jarrod V. Sundaram, Shanmugavelayutham K. TI Millimeter wave rheometry: theory and experiment SO RHEOLOGICA ACTA LA English DT Article DE Millimeter wave rheometry; Unsteady film flow; Viscosity; Yield stress ID INCLINED PLANE; GLASS MELTS; LIQUID; INSTABILITY; FILMS; SLOPE; FLOW AB A novel millimeter wave (MMW) rheometry is developed to determine the viscosity of fluids based on an unsteady film flow on an inclined plane. The method measures fringes due to MMW interference between the front and back surfaces of a fluid flowing across the field of view of a ceramic wave guide coupled to a MMW receiver operating at 137 GHz. With knowledge of the dielectric constant, the interference fringe spacing is used to calculate the thickness of the fluid layer. This thickness is then transformed into the viscosity by means of a simple hydrodynamic theory. Our results show that the MMW rheometry can practically distinguish between the 30, 100, and 200 Pa center dot s silicone oils. The geometry of the method allows for potential industrial applications such as measuring viscosity of the flowing slag down the walls of coal gasifiers. The MMW rheometry with simple modifications can be easily extended to measure important non-Newtonian fluid characteristics such as yield stress. C1 [Sundaram, Shanmugavelayutham K.] Alfred Univ, Alfred, NY 14802 USA. [Chun, Jaehun; McCloy, John S.; Crum, Jarrod V.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Sundaram, SK (reprint author), Alfred Univ, Alfred, NY 14802 USA. EM sundaram@alfred.edu RI McCloy, John/D-3630-2013 OI McCloy, John/0000-0001-7476-7771 FU Energy Conversion Initiative (ECI) at Pacific Northwest National Laboratory (PNNL); United States Department of Energy [DE-AC06-76RLO 1830] FX The authors acknowledge useful discussions with Dr. Paul P. Woskov, Plasma Science and Fusion Center, Massachusetts Institute of Technology. The authors also acknowledge support from Energy Conversion Initiative (ECI) at Pacific Northwest National Laboratory (PNNL) for partial support. PNNL is a multi-program national laboratory operated by Battelle Memorial Institute for the United States Department of Energy under DE-AC06-76RLO 1830. NR 17 TC 2 Z9 2 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0035-4511 EI 1435-1528 J9 RHEOL ACTA JI Rheol. Acta PD FEB PY 2011 VL 50 IS 2 BP 125 EP 130 DI 10.1007/s00397-010-0522-1 PG 6 WC Mechanics SC Mechanics GA 750DY UT WOS:000289526200004 ER PT J AU Zorba, V Mao, XL Russo, RE AF Zorba, Vassilia Mao, Xianglei Russo, Richard E. TI Ultrafast laser induced breakdown spectroscopy for high spatial resolution chemical analysis SO SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY LA English DT Article DE LIBS; Ultrafast laser; Spatial resolution; Elemental analysis; Laser ablation ID SAMPLES; ABLATION AB Femtosecond laser induced breakdown spectroscopy (LIBS) was used to identify the spatial resolution limitations and assess the minimal detectable mass restrictions in laser-ablation based chemical analysis. The atomic emission of sodium (Na) and potassium (K) dopants in transparent dielectric Mica matrices was studied, to find that both these elements could be detected from 450 nm diameter ablation craters, full-width-at-half-maximum (FWHM). Under optimal conditions, mass as low as 220 ag was measured, demonstrating the feasibility of using laser-ablation based chemical analysis to achieve high spatial resolution elemental analysis in real-time and at atmospheric pressure conditions. (C) 2011 Elsevier B.V. All rights reserved. C1 [Zorba, Vassilia; Mao, Xianglei; Russo, Richard E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Zorba, V (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM vzormpa@lbl.gov; RERusso@lbl.gov RI Zorba, Vassilia/C-4589-2015 FU Chemical Science Division, Office of Basic Energy Sciences, Office of Nuclear Nonproliferation; U.S. Department of Energy [DE-AC02-05CH11231] FX This research has been supported by the Chemical Science Division, Office of Basic Energy Sciences, Office of Nuclear Nonproliferation, and the U.S. Department of Energy under contract no. DE-AC02-05CH11231. NR 18 TC 38 Z9 40 U1 0 U2 34 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0584-8547 J9 SPECTROCHIM ACTA B JI Spectroc. Acta Pt. B-Atom. Spectr. PD FEB PY 2011 VL 66 IS 2 BP 189 EP 192 DI 10.1016/j.sab.2010.12.008 PG 4 WC Spectroscopy SC Spectroscopy GA 747OI UT WOS:000289328900014 ER PT J AU Collantes, G Melaina, MW AF Collantes, Gustavo Melaina, Marc W. TI The co-evolution of alternative fuel infrastructure and vehicles: A study of the experience of Argentina with compressed natural gas SO ENERGY POLICY LA English DT Article DE Natural gas; Alternative fuels; Fuel infrastructure AB In a quest for strategic and environmental benefits, the developed countries have been trying for many years to increase the share of alternative fuels in their transportation fuel mixes. They have met very little success though. In this paper, we examine the experience of Argentina with compressed natural gas. We conducted interviews with a wide range of stakeholders and analyzed econometrically data collected in Argentina to investigate the factors, economic, political, and others that determined the high rate of adoption of this fuel. A central objective of this research was to identify lessons that could be useful to developed countries in their efforts to deploy alternative fuel vehicles. We find that fuel price regulation was a significant determinant of the adoption of compressed natural gas, while, contrary to expectations, government financing of refueling infrastructure was minimal. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Collantes, Gustavo] State Washington, Renergh Consulting & Dept Commerce, Seattle, WA 98121 USA. [Melaina, Marc W.] Natl Renewable Energy Lab, Golden, CO USA. RP Collantes, G (reprint author), State Washington, Renergh Consulting & Dept Commerce, 2001 6th Ave,Suite 2600, Seattle, WA 98121 USA. EM gustavo.collantes@commerce.wa.gov FU U.S. Department of Energy [AFT-8-88541-01] FX This research was supported through funding by the U.S. Department of Energy through subcontract AFT-8-88541-01. NR 20 TC 16 Z9 16 U1 0 U2 4 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 0301-4215 EI 1873-6777 J9 ENERG POLICY JI Energy Policy PD FEB PY 2011 VL 39 IS 2 BP 664 EP 675 DI 10.1016/j.enpol.2010.10.039 PG 12 WC Energy & Fuels; Environmental Sciences; Environmental Studies SC Energy & Fuels; Environmental Sciences & Ecology GA 714BN UT WOS:000286782000021 ER PT J AU Levin, T Thomas, VM Lee, AJ AF Levin, Todd Thomas, Valerie M. Lee, Audrey J. TI State-scale evaluation of renewable electricity policy: The role of renewable electricity credits and carbon taxes SO ENERGY POLICY LA English DT Article DE Renewable electricity standard; Carbon tax; Renewable electricity credits ID MARKAL MODEL; BIOMASS; EXPERIENCE; MARKETS; IMPACTS; ENERGY; SECTOR; COSTS; CHINA AB We have developed a state-scale version of the MARKAL energy optimization model, commonly used to model energy policy at the US national scale and internationally. We apply the model to address state-scale impacts of a renewable electricity standard (RES) and a carbon tax in one southeastern state, Georgia. Biomass is the lowest cost option for large-scale renewable generation in Georgia; we find that electricity can be generated from biomass co-firing at existing coal plants for a marginal cost above baseline of 0.2-2.2 cents/kWh and from dedicated biomass facilities for 3.0-5.5 cents/kWh above baseline. We evaluate the cost and amount of renewable electricity that would be produced in-state and the amount of out-of-state renewable electricity credits (RECs) that would be purchased as a function of the REC price. We find that in Georgia, a constant carbon tax to 2030 primarily promotes a shift from coal to natural gas and does not result in substantial renewable electricity generation. We also find that the option to offset a RES with renewable electricity credits would push renewable investment out-of-state. The tradeoff for keeping renewable investment in-state by not offering RECs is an approximately 1% additional increase in the levelized cost of electricity. (C) 2010 Elsevier Ltd. All rights reserved. C1 [Levin, Todd; Thomas, Valerie M.] Georgia Inst Technol, Sch Ind & Syst Engn, Atlanta, GA 30332 USA. [Thomas, Valerie M.] Georgia Inst Technol, Sch Publ Policy, Atlanta, GA 30332 USA. [Lee, Audrey J.] US DOE, Off Policy & Int Affairs, Washington, DC 20585 USA. RP Levin, T (reprint author), Georgia Inst Technol, Sch Ind & Syst Engn, 765 Ferst Dr NW, Atlanta, GA 30332 USA. EM todd.levin@gatech.edu; vthomas@isye.gatech.edu; audrey.lee@hq.doe.gov OI Thomas, Valerie/0000-0002-0968-8863 NR 49 TC 11 Z9 11 U1 1 U2 28 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 FEB PY 2011 VL 39 IS 2 BP 950 EP 960 DI 10.1016/j.enpol.2010.11.020 PG 11 WC Energy & Fuels; Environmental Sciences; Environmental Studies SC Energy & Fuels; Environmental Sciences & Ecology GA 714BN UT WOS:000286782000048 ER PT J AU James, CW Tamburello, DA Brinkman, KS Gray, JR Hardy, BJ Anton, DL AF James, C. W., Jr. Tamburello, D. A. Brinkman, K. S. Gray, J. R. Hardy, B. J. Anton, D. L. TI Environmental exposure of 2LiBH(4)+ MgH2 using empirical and theoretical thermodynamics SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 3rd Three-day International Conference on Hydrogen Safety (ICHS3) CY SEP, 2009 CL Ajaccio, FRANCE DE Hydrogen storage; Environmental reactivity; Lithium borohydride; Magnesium hydride; Calorimetry ID HYDROGEN STORAGE; SYSTEMS AB It has been shown that the consequence of environmental exposure can be qualitatively predicted by modeling the heat generated as a result of environmental exposure of reactive hydrides along with heat loss associated with conduction and convection with the ambient surroundings. To this end, an idealized finite volume model was developed to represent the behavior of dispersed hydride from a breached system. Semi-empirical thermodynamic calculations and substantiating calorimetric experiments were performed in order to quantify the energy released, energy release rates and to quantify the reaction products resulting from water and air exposure of a lithium borohydride and magnesium hydride combination. The hydrides, LiBH4 and MgH2, were studied in a 2:1 "destabilized" mixture which has been demonstrated to be reversible. Liquid water hydrolysis reactions were performed in a Calvet calorimeter equipped with a mixing cell using pH-neutral water. Water vapor and gaseous oxygen reactivity measurements were performed at varying relative humidities and temperatures by modifying the calorimeter and utilizing a gas circulating flow cell apparatus. The results of these calorimetric measurements were used to develop quantitative kinetic expressions for hydrolysis and air oxidation in these systems. Thermodynamic parameters obtained from these tests were then incorporated into a computational fluid dynamics model to predict both the hydrogen generation rates and concentrations along with localized temperature distributions. The results of these numerical simulations can be used to predict ignition events and the resultant conclusions will be discussed. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. C1 [James, C. W., Jr.; Tamburello, D. A.; Brinkman, K. S.; Gray, J. R.; Hardy, B. J.; Anton, D. L.] Savannah River Natl Lab, Aiken, SC 29808 USA. RP Anton, DL (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA. EM donald.anton@srnl.doe.gov OI Brinkman, Kyle/0000-0002-2219-1253 NR 10 TC 1 Z9 1 U1 2 U2 11 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD FEB PY 2011 VL 36 IS 3 BP 2471 EP 2477 DI 10.1016/j.ijhydene.2010.05.025 PG 7 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 740WT UT WOS:000288825800071 ER PT J AU Schefer, RW Merilo, EG Groethe, MA Houf, WG AF Schefer, R. W. Merilo, E. G. Groethe, M. A. Houf, W. G. TI Experimental investigation of hydrogen jet fire mitigation by barrier walls SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 3rd Three-day International Conference on Hydrogen Safety (ICHS3) CY SEP, 2009 CL Ajaccio-Corsica, FRANCE DE Hydrogen; Jet flame; Barrier wall; Mitigation; Codes and standards AB Hydrogen jet flames resulting from ignition of unintended releases can be extensive in length and pose significant radiation and impingement hazards. One possible mitigation strategy to reduce exposure to jet flames is to incorporate barriers around hydrogen storage and delivery equipment. While reducing the extent of unacceptable consequences, the walls may introduce other hazards if not properly configured. This paper describes experiments carried out to characterize the effectiveness of different barrier wall configurations at reducing the hazards created by jet fires. The hazards that are evaluated are the generation of overpressure during ignition, the thermal radiation produced by the jet flame, and the effectiveness of the wall at deflecting the flame. The tests were conducted against a vertical wall (1-wall configuration), and two "3-wall" configurations that consisted of the same vertical wall with two side walls of the same dimensions angled at 135 degrees and 90 degrees. The hydrogen jet impinged on the center of the central wall in all cases. In terms of reducing the radiation heat flux behind the wall, the 1-wall configuration performed best followed by the 3-wall 135 degrees configuration and the 3-wall 90 degrees. The reduced shielding efficiency of the three-wall configurations was probably due to the additional confinement created by the side walls that limited the escape of hot gases to the sides of the wall and forced the hot gases to travel over the top of the wall. The 3-wall barrier with 135 degrees side walls exhibited the best overall performance. Overpressures produced on the release side of the wall were similar to those produced in the 1-wall configuration. The attenuation of overpressure and impulse behind the wall was comparable to that of the three-wall configuration with 90 degrees side walls. The 3-wall 135 degrees configuration's ability to shield the back side of the wall from the heat flux emitted from the jet flame was comparable to the 1-wall and better than the 3-wall 90 degrees configuration. The ratio of peak overpressure (from in front of the wall and from behind the wall) showed that the 3-wall 135 degrees configuration and the 3-wall 90 degrees configuration had a similar effectiveness. In terms of the pressure mitigation, the 3-wall configurations performed significantly better than the 1-wall configuration. (c) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. C1 [Schefer, R. W.; Houf, W. G.] Sandia Natl Labs, Livermore, CA 94551 USA. [Merilo, E. G.; Groethe, M. A.] SRI Int, Menlo Pk, CA 94025 USA. RP Houf, WG (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA. EM erik.merilo@sri.com; mark.groethe@sri.com; will@sandia.gov NR 12 TC 6 Z9 6 U1 2 U2 12 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD FEB PY 2011 VL 36 IS 3 BP 2530 EP 2537 DI 10.1016/j.ijhydene.2010.04.008 PG 8 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 740WT UT WOS:000288825800078 ER PT J AU Brennan, S Bengaouer, A Carcassi, M Cerchiara, G Evans, G Friedrich, A Gentilhomme, O Houf, W Kotchourko, A Kotchourko, N Kudriakov, S Makarov, D Molkov, V Papanikolaou, E Pitre, C Royle, M Schefer, R Stern, G Venetsanos, AG Veser, A Willoughby, D Yanez, J AF Brennan, S. Bengaouer, A. Carcassi, M. Cerchiara, G. Evans, G. Friedrich, A. Gentilhomme, O. Houf, W. Kotchourko, A. Kotchourko, N. Kudriakov, S. Makarov, D. Molkov, V. Papanikolaou, E. Pitre, C. Royle, M. Schefer, R. Stern, G. Venetsanos, A. G. Veser, A. Willoughby, D. Yanez, J. TI Hydrogen and fuel cell stationary applications: Key findings of modelling and experimental work in the HYPER project SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 3rd Three-day International Conference on Hydrogen Safety (ICHS3) CY SEP, 2009 CL Ajaccio-Corsica, FRANCE DE Hydrogen safety; Fuel cell stationary applications; Release; Explosion; Jet fire; Permitting ID HIGH-PRESSURE AB This paper summarises the results of the research programme in the HYPER project (Installation Permitting Guidance for Hydrogen and Fuel Cells Stationary Applications) [1]. The relevance of scientific findings to installation permitting guidelines (IPG) for small stationary hydrogen and fuel cell systems is discussed. A key aim of the activities was to generate new knowledge in the field of hydrogen safety, and, where possible, use this data as a basis to support the recommendations in the IPG. The structure of the paper mirrors the HYPER research programme in that the work is described in terms of the following relevant scenarios: 1) high pressure releases, 2) small foreseeable releases, 3) catastrophic releases, and 4) the effects of walls and barriers. Within each scenario the key objectives, activities and results are presented. The work on high pressure releases sought to provide information for informing safety distances for high pressure components and associated fuel storage, activities on both ignited and unignited jets are reported. A study on small foreseeable releases, which could potentially be controlled through natural or forced ventilation, is described. The aim of the study was to determine the ventilation requirements in enclosures containing fuel cells, such that in the event of a foreseeable leak, the concentration of hydrogen in air for zone 2 ATEX [2] is not exceeded. The hazard potential of a possibly catastrophic hydrogen leakage inside a fuel cell cabinet was investigated using a generic fuel cell enclosure model. The rupture of the hydrogen feed line inside the enclosure was considered and both dispersion and combustion of the resulting hydrogen-air mixture were examined for a range of leak rates, and blockage ratios. Finally, the C1 [Brennan, S.; Makarov, D.; Molkov, V.] Univ Ulster, HySAFER Ctr, Newtownabbey BT37 0QB, Ireland. [Bengaouer, A.; Kudriakov, S.; Pitre, C.] CEA, DEN, DM2S, SFME,LTMF, F-91191 Gif Sur Yvette, France. [Carcassi, M.; Cerchiara, G.] Univ Pisa, Dept Mech Nucl & Prod Engn, I-56126 Pisa, Italy. [Evans, G.; Houf, W.; Schefer, R.] Sandia Natl Labs, Livermore, CA USA. [Friedrich, A.; Kotchourko, N.; Stern, G.; Veser, A.] Prosci GmbH, D-76275 Ettlingen, Germany. [Gentilhomme, O.] INERIS, Explos Dispers Unit, F-60550 Verneuil En Halatte, France. [Kotchourko, A.; Yanez, J.] Forschungszentrum Karlsruhe, IKET, D-76021 Karlsruhe, Germany. [Papanikolaou, E.; Venetsanos, A. G.] Natl Ctr Sci Res Demokritos, Environm Res Lab, Athens 15310 A, Greece. [Royle, M.; Willoughby, D.] Hlth & Safety Lab, Buxton SK17 9JN, Derby, England. RP Brennan, S (reprint author), Univ Ulster, HySAFER Ctr, Newtownabbey BT37 0QB, Ireland. EM sl.brennan@ulster.ac.uk RI Yanez, Jorge/K-5370-2015 OI Yanez, Jorge/0000-0003-1780-2280 NR 31 TC 2 Z9 2 U1 1 U2 14 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD FEB PY 2011 VL 36 IS 3 BP 2711 EP 2720 DI 10.1016/j.ijhydene.2010.04.127 PG 10 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 740WT UT WOS:000288825800100 ER PT J AU Weiner, SC Fassbender, LL Quick, KA AF Weiner, S. C. Fassbender, L. L. Quick, K. A. TI Using hydrogen safety best practices and learning from safety events SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 3rd Three-day International Conference on Hydrogen Safety (ICHS3) CY SEP, 2009 CL Ajaccio-Corsica, FRANCE DE Safety; Best practices; Incidents; Near-misses AB A best practice is a technique or methodology that has reliably led to a desired result. A wealth of experience regarding the safe use and handling of hydrogen exists as a result of an extensive history in a wide variety of industrial and aerospace settings. Hydrogen Safety Best Practices (h2bestpractices.org) captures this vast knowledge base and makes it publically available to those working with hydrogen and related systems, including those just starting to work with hydrogen. This online manual is organized under a number of hierarchical technical content categories. References, including publications and other online links, that deal with the safety aspects of hydrogen are compiled for easy access. This paper discusses the development of Hydrogen Safety Best Practices as a safety knowledge tool, the nature of its technical content, and the steps taken to enhance its value and usefulness. Specific safety event examples are provided to illustrate the link between technical content in the online best practices manual and a companion safety knowledge tool, Hydrogen Incident Reporting and Lessons Learned (www.h2incidents.org), which encourages the sharing of lessons learned and other safety event information [1]. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. C1 [Weiner, S. C.] Pacific NW Natl Lab, Washington, DC 20024 USA. [Fassbender, L. L.; Quick, K. A.] Pacific NW Natl Lab, Richland, WA 99352 USA. RP Weiner, SC (reprint author), Pacific NW Natl Lab, Washington, DC 20024 USA. EM sc.weiner@pnl.gov NR 11 TC 9 Z9 9 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD FEB PY 2011 VL 36 IS 3 BP 2729 EP 2735 DI 10.1016/j.ijhydene.2010.03.037 PG 7 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 740WT UT WOS:000288825800102 ER PT J AU Rivkin, C Blake, C Burgess, R Buttner, WJ Post, MB AF Rivkin, Carl Blake, Chad Burgess, Robert Buttner, William J. Post, Matthew B. TI A national set of hydrogen codes and standards for the United States SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY LA English DT Article; Proceedings Paper CT 3rd Three-day International Conference on Hydrogen Safety (ICHS3) CY SEP, 2009 CL Ajaccio-Corsica, FRANCE DE National template; Codes and standards; Hydrogen; Standard development organizations; Code development organizations AB In 2003, the U.S. Department of Energy (DOE) initiated a project to coordinate the development of a national template of hydrogen codes and standards for both vehicular and stationary applications. The process consisted of an initial evaluation to find any gaps in the existing hydrogen codes and standards, and to define the codes and standards required to fill these gaps. These codes and standards were to be developed by several standards development organizations (SDOs). This article describes the three levels of codes and standards that address hydrogen technologies for the built environment. Level 1-Primary adopted building and fire codes. Level 2-Hydrogen-specific codes and standards references in primary adopted code. Level 3-Hydrogen-specific component standards referenced in hydrogen-specific codes. Also described is the progress to date in populating these three levels with the required hydrogen codes and standards. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. C1 [Rivkin, Carl; Blake, Chad; Burgess, Robert; Buttner, William J.; Post, Matthew B.] Natl Renewable Energy Lab, Hydrogen Technol & Syst Ctr, Golden, CO 80401 USA. RP Rivkin, C (reprint author), Natl Renewable Energy Lab, Hydrogen Technol & Syst Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. EM carl.rivkin@nrel.gov RI Post, Matthew/J-7528-2013 OI Post, Matthew/0000-0002-2855-8394 NR 0 TC 7 Z9 7 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-3199 J9 INT J HYDROGEN ENERG JI Int. J. Hydrog. Energy PD FEB PY 2011 VL 36 IS 3 BP 2736 EP 2741 DI 10.1016/j.ijhydene.2010.03.096 PG 6 WC Chemistry, Physical; Electrochemistry; Energy & Fuels SC Chemistry; Electrochemistry; Energy & Fuels GA 740WT UT WOS:000288825800103 ER PT J AU Dejoie, C Kunz, M Tamura, N Bousige, C Chen, K Teat, S Beavers, C Baerlocher, C AF Dejoie, Catherine Kunz, Martin Tamura, Nobumichi Bousige, Colin Chen, Kai Teat, Simon Beavers, Christine Baerlocher, Christian TI Determining the energy-dependent X-ray flux variation of a synchrotron beamline using Laue diffraction patterns SO JOURNAL OF APPLIED CRYSTALLOGRAPHY LA English DT Article DE incident flux; Laue; microdiffraction ID CRYSTALLOGRAPHY; PHOTOGRAPHS; CRYSTAL AB Although the spectrum originating from a superconducting bending magnet is quasi-continuous, it shows important intensity variations through its spectral range. A method to determine the incident energy-dependent flux variation based on the comparison between observed intensities and the calculated intensities of a well known structure (calcite) is presented here. It is found that the measured flux is highly sensitive to the use of correct Debye-Waller factors for the atoms of the standard crystal. By using the measured flux curve, it was possible to unambiguously index the Laue diffraction pattern of a trigonal crystal structure in its hexagonal setting. This is a crucial but difficult first step for the determination of strain and stress in materials with this symmetry, such as quartz, Mg, Ti, Zn etc. C1 [Dejoie, Catherine; Kunz, Martin; Tamura, Nobumichi; Teat, Simon; Beavers, Christine] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. [Bousige, Colin] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France. [Chen, Kai] UC Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. [Baerlocher, Christian] Swiss Fed Inst Technol, Lab Kristallog, CH-8093 Zurich, Switzerland. RP Dejoie, C (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM cdejoie@lbl.gov RI Beavers, Christine/C-3539-2009; Kunz, Martin/K-4491-2012; Chen, Kai/O-5662-2014; OI Beavers, Christine/0000-0001-8653-5513; Kunz, Martin/0000-0001-9769-9900; Chen, Kai/0000-0002-4917-4445; Bousige, Colin/0000-0002-0490-2277 FU Office of Science, Office of Basic Energy Sciences, Materials Science Division, of the US Department of Energy at Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; NSF [0416243] FX We acknowledge the help of J. M. Glossinger who performed the calculation of the monochromatic and the white-beam incident flux curve. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, Materials Science Division, of the US Department of Energy under contract No. DE-AC02-05CH11231 at Lawrence Berkeley National Laboratory. The microdiffraction program at the ALS on beamline 12.3.2 was made possible by NSF grant No. 0416243. NR 17 TC 6 Z9 6 U1 1 U2 13 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0021-8898 J9 J APPL CRYSTALLOGR JI J. Appl. Crystallogr. PD FEB PY 2011 VL 44 BP 177 EP 183 DI 10.1107/S0021889810052015 PN 1 PG 7 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 709XS UT WOS:000286475300022 ER EF